diff options
Diffstat (limited to 'mesalib/src/mesa/shader/slang')
67 files changed, 35429 insertions, 0 deletions
diff --git a/mesalib/src/mesa/shader/slang/descrip.mms b/mesalib/src/mesa/shader/slang/descrip.mms new file mode 100644 index 000000000..6eefbcf5b --- /dev/null +++ b/mesalib/src/mesa/shader/slang/descrip.mms @@ -0,0 +1,68 @@ +# Makefile for core library for VMS +# contributed by Jouk Jansen joukj@hrem.nano.tudelft.nl +# Last revision : 3 October 2007 + +.first + define gl [----.include.gl] + define math [--.math] + define swrast [--.swrast] + define array_cache [--.array_cache] + define main [--.main] + define glapi [--.glapi] + define shader [--.shader] + +.include [----]mms-config. + +##### MACROS ##### + +VPATH = RCS + +INCDIR = [----.include],[--.main],[--.glapi],[-.slang],[-.grammar],[-] +LIBDIR = [----.lib] +CFLAGS = /include=($(INCDIR),[])/define=(PTHREADS=1)/name=(as_is,short)/float=ieee/ieee=denorm + +SOURCES = \ + slang_compile.c,slang_preprocess.c + +OBJECTS = slang_builtin.obj,slang_codegen.obj,slang_compile.obj,\ + slang_compile_function.obj,slang_compile_operation.obj,\ + slang_compile_struct.obj,slang_compile_variable.obj,slang_emit.obj,\ + slang_ir.obj,slang_label.obj,slang_library_noise.obj,slang_link.obj,\ + slang_log.obj,slang_mem.obj,slang_preprocess.obj,slang_print.obj,\ + slang_simplify.obj,slang_storage.obj,slang_typeinfo.obj,\ + slang_utility.obj,slang_vartable.obj + +##### RULES ##### + +VERSION=Mesa V3.4 + +##### TARGETS ##### +# Make the library +$(LIBDIR)$(GL_LIB) : $(OBJECTS) + @ library $(LIBDIR)$(GL_LIB) $(OBJECTS) + +clean : + purge + delete *.obj;* + +slang_builtin.obj : slang_builtin.c +slang_codegen.obj : slang_codegen.c +slang_compile.obj : slang_compile.c +slang_compile_function.obj : slang_compile_function.c +slang_compile_operation.obj : slang_compile_operation.c +slang_compile_struct.obj : slang_compile_struct.c +slang_compile_variable.obj : slang_compile_variable.c +slang_emit.obj : slang_emit.c +slang_ir.obj : slang_ir.c +slang_label.obj : slang_label.c +slang_library_noise.obj : slang_library_noise.c +slang_link.obj : slang_link.c +slang_log.obj : slang_log.c +slang_mem.obj : slang_mem.c +slang_preprocess.obj : slang_preprocess.c +slang_print.obj : slang_print.c +slang_simplify.obj : slang_simplify.c +slang_storage.obj : slang_storage.c +slang_typeinfo.obj : slang_typeinfo.c +slang_utility.obj : slang_utility.c +slang_vartable.obj : slang_vartable.c diff --git a/mesalib/src/mesa/shader/slang/library/Makefile b/mesalib/src/mesa/shader/slang/library/Makefile new file mode 100644 index 000000000..0e03fac2e --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/Makefile @@ -0,0 +1,81 @@ +# src/mesa/shader/slang/library/Makefile + +TOP = ../../../../.. + +include $(TOP)/configs/current + +INCDIR = $(TOP)/include + +LIB_DEP = $(TOP)/$(LIB_DIR)/$(GL_LIB_NAME) + +# +# targets +# + +.PHONY: default clean + +default: syntax builtin + +clean: + -rm -f syn_to_c gc_to_bin *_syn.h *_gc.h + +syntax: slang_pp_directives_syn.h slang_pp_expression_syn.h slang_shader_syn.h slang_pp_version_syn.h + +builtin: builtin_110 builtin_120 + +# +# executables +# + +syn_to_c: syn_to_c.c + $(CC) syn_to_c.c -o syn_to_c + +gc_to_bin: gc_to_bin.c slang_shader_syn.h + $(CC) gc_to_bin.c -o gc_to_bin + +# +# syntax scripts +# + +slang_pp_directives_syn.h: syn_to_c slang_pp_directives.syn + ./syn_to_c slang_pp_directives.syn > slang_pp_directives_syn.h + +slang_pp_expression_syn.h: syn_to_c slang_pp_expression.syn + ./syn_to_c slang_pp_expression.syn > slang_pp_expression_syn.h + +slang_shader_syn.h: syn_to_c slang_shader.syn + ./syn_to_c slang_shader.syn > slang_shader_syn.h + +slang_pp_version_syn.h: syn_to_c slang_pp_version.syn + ./syn_to_c slang_pp_version.syn > slang_pp_version_syn.h + +# +# builtin library sources +# + +builtin_110: slang_common_builtin_gc.h slang_core_gc.h slang_fragment_builtin_gc.h slang_vertex_builtin_gc.h + +builtin_120: slang_120_core_gc.h slang_builtin_120_common_gc.h slang_builtin_120_fragment_gc.h + + +slang_120_core_gc.h: gc_to_bin slang_120_core.gc + ./gc_to_bin 1 slang_120_core.gc slang_120_core_gc.h + +slang_builtin_120_common_gc.h: gc_to_bin slang_builtin_120_common.gc + ./gc_to_bin 1 slang_builtin_120_common.gc slang_builtin_120_common_gc.h + +slang_builtin_120_fragment_gc.h: gc_to_bin slang_builtin_120_fragment.gc + ./gc_to_bin 1 slang_builtin_120_fragment.gc slang_builtin_120_fragment_gc.h + +slang_common_builtin_gc.h: gc_to_bin slang_common_builtin.gc + ./gc_to_bin 1 slang_common_builtin.gc slang_common_builtin_gc.h + +slang_core_gc.h: gc_to_bin slang_core.gc + ./gc_to_bin 1 slang_core.gc slang_core_gc.h + +slang_fragment_builtin_gc.h: gc_to_bin slang_fragment_builtin.gc + ./gc_to_bin 1 slang_fragment_builtin.gc slang_fragment_builtin_gc.h + +slang_vertex_builtin_gc.h: gc_to_bin slang_vertex_builtin.gc + ./gc_to_bin 2 slang_vertex_builtin.gc slang_vertex_builtin_gc.h + diff --git a/mesalib/src/mesa/shader/slang/library/gc_to_bin.c b/mesalib/src/mesa/shader/slang/library/gc_to_bin.c new file mode 100644 index 000000000..8aef7b541 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/gc_to_bin.c @@ -0,0 +1,85 @@ +#include "../../grammar/grammar_crt.h" +#include "../../grammar/grammar_crt.c" +#include <stdlib.h> +#include <stdio.h> + +static const char *slang_shader_syn = +#include "slang_shader_syn.h" +; + +static int gc_to_bin (grammar id, const char *in, const char *out) +{ + FILE *f; + byte *source, *prod; + unsigned int size, i, line = 0; + + printf ("Precompiling %s\n", in); + + f = fopen (in, "r"); + if (f == NULL) + return 1; + fseek (f, 0, SEEK_END); + size = ftell (f); + fseek (f, 0, SEEK_SET); + source = (byte *) grammar_alloc_malloc (size + 1); + source[fread (source, 1, size, f)] = '\0'; + fclose (f); + + if (!grammar_fast_check (id, source, &prod, &size, 65536)) + { + grammar_alloc_free (source); + return 1; + } + + f = fopen (out, "w"); + fprintf (f, "\n"); + fprintf (f, "/* DO NOT EDIT - THIS FILE IS AUTOMATICALLY GENERATED FROM THE FOLLOWING FILE: */\n"); + fprintf (f, "/* %s */\n", in); + fprintf (f, "\n"); + for (i = 0; i < size; i++) + { + unsigned int a; + if (prod[i] < 10) + a = 1; + else if (prod[i] < 100) + a = 2; + else + a = 3; + if (i < size - 1) + a++; + if (line + a >= 100) + { + fprintf (f, "\n"); + line = 0; + } + line += a; + fprintf (f, "%d", prod[i]); + if (i < size - 1) + fprintf (f, ","); + } + fprintf (f, "\n"); + fclose (f); + grammar_alloc_free (prod); + return 0; +} + +int main (int argc, char *argv[]) +{ + grammar id; + + id = grammar_load_from_text ((const byte *) slang_shader_syn); + if (id == 0) { + fprintf(stderr, "Error loading grammar from text\n"); + return 1; + } + grammar_set_reg8 (id, (const byte *) "parsing_builtin", 1); + grammar_set_reg8 (id, (const byte *) "shader_type", atoi (argv[1])); + if (gc_to_bin (id, argv[2], argv[3])) { + fprintf(stderr, "Error in gc_to_bin %s %s\n", argv[2], argv[3]); + grammar_destroy (id); + return 1; + } + grammar_destroy (id); + return 0; +} + diff --git a/mesalib/src/mesa/shader/slang/library/slang_120_core.gc b/mesalib/src/mesa/shader/slang/library/slang_120_core.gc new file mode 100644 index 000000000..04c5ec2ec --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_120_core.gc @@ -0,0 +1,1978 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +// +// Constructors and operators introduced in GLSL 1.20 - mostly on new +// (non-square) types of matrices. +// +// One important change in the language is that when a matrix is used +// as an argument to a matrix constructor, it must be the only argument +// for the constructor. The compiler takes care of it by itself and +// here we only care to re-introduce constructors for old (square) +// types of matrices. +// + +// +// From Shader Spec, ver. 1.20, rev. 6 +// + +//// mat2x3: 2 columns of vec3 + +mat2x3 __constructor(const float f00, const float f10, const float f20, + const float f01, const float f11, const float f21) +{ + __retVal[0].x = f00; + __retVal[0].y = f10; + __retVal[0].z = f20; + __retVal[1].x = f01; + __retVal[1].y = f11; + __retVal[1].z = f21; +} + +mat2x3 __constructor(const float f) +{ + __retVal = mat2x3( f, 0.0, 0.0, + 0.0, f, 0.0); +} + +mat2x3 __constructor(const int i) +{ + const float f = float(i); + __retVal = mat2x3(f); +} + +mat2x3 __constructor(const bool b) +{ + const float f = float(b); + __retVal = mat2x3(f); +} + +mat2x3 __constructor(const vec3 c0, const vec3 c1) +{ + __retVal[0] = c0; + __retVal[1] = c1; +} + + + +//// mat2x4: 2 columns of vec4 + +mat2x4 __constructor(const float f00, const float f10, const float f20, const float f30, + const float f01, const float f11, const float f21, const float f31) +{ + __retVal[0].x = f00; + __retVal[0].y = f10; + __retVal[0].z = f20; + __retVal[0].w = f30; + __retVal[1].x = f01; + __retVal[1].y = f11; + __retVal[1].z = f21; + __retVal[1].w = f31; +} + +mat2x4 __constructor(const float f) +{ + __retVal = mat2x4( f, 0.0, 0.0, 0.0, + 0.0, f, 0.0, 0.0); +} + +mat2x4 __constructor(const int i) +{ + const float f = float(i); + __retVal = mat2x4(f); +} + +mat2x4 __constructor(const bool b) +{ + const float f = float(b); + __retVal = mat2x4(f); +} + +mat2x4 __constructor(const vec4 c0, const vec4 c1) +{ + __retVal[0] = c0; + __retVal[1] = c1; +} + + + +//// mat3x2: 3 columns of vec2 + +mat3x2 __constructor(const float f00, const float f10, + const float f01, const float f11, + const float f02, const float f12) +{ + __retVal[0].x = f00; + __retVal[0].y = f10; + __retVal[1].x = f01; + __retVal[1].y = f11; + __retVal[2].x = f02; + __retVal[2].y = f12; +} + +mat3x2 __constructor(const float f) +{ + __retVal = mat3x2( f, 0.0, + 0.0, f, + 0.0, 0.0); +} + +mat3x2 __constructor(const int i) +{ + const float f = float(i); + __retVal = mat3x2(f); +} + +mat3x2 __constructor(const bool b) +{ + const float f = float(b); + __retVal = mat3x2(f); +} + +mat3x2 __constructor(const vec2 c0, const vec2 c1, const vec2 c2) +{ + __retVal[0] = c0; + __retVal[1] = c1; + __retVal[2] = c2; +} + + + +//// mat3x4: 3 columns of vec4 + +mat3x4 __constructor(const float f00, const float f10, const float f20, const float f30, + const float f01, const float f11, const float f21, const float f31, + const float f02, const float f12, const float f22, const float f32) +{ + __retVal[0].x = f00; + __retVal[0].y = f10; + __retVal[0].z = f20; + __retVal[0].w = f30; + __retVal[1].x = f01; + __retVal[1].y = f11; + __retVal[1].z = f21; + __retVal[1].w = f31; + __retVal[2].x = f02; + __retVal[2].y = f12; + __retVal[2].z = f22; + __retVal[2].w = f32; +} + +mat3x4 __constructor(const float f) +{ + __retVal = mat3x4( f, 0.0, 0.0, 0.0, + 0.0, f, 0.0, 0.0, + 0.0, 0.0, f, 0.0); +} + +mat3x4 __constructor(const int i) +{ + const float f = float(i); + __retVal = mat3x4(f); +} + +mat3x4 __constructor(const bool b) +{ + const float f = float(b); + __retVal = mat3x4(f); +} + +mat3x4 __constructor(const vec4 c0, const vec4 c1, const vec4 c2) +{ + __retVal[0] = c0; + __retVal[1] = c1; + __retVal[2] = c2; +} + + + +//// mat4x2: 4 columns of vec2 + +mat4x2 __constructor(const float f00, const float f10, + const float f01, const float f11, + const float f02, const float f12, + const float f03, const float f13) +{ + __retVal[0].x = f00; + __retVal[0].y = f10; + __retVal[1].x = f01; + __retVal[1].y = f11; + __retVal[2].x = f02; + __retVal[2].y = f12; + __retVal[3].x = f03; + __retVal[3].y = f13; +} + +mat4x2 __constructor(const float f) +{ + __retVal = mat4x2( f, 0.0, + 0.0, 4, + 0.0, 0.0, + 0.0, 0.0); +} + +mat4x2 __constructor(const int i) +{ + const float f = float(i); + __retVal = mat4x2(f); +} + +mat4x2 __constructor(const bool b) +{ + const float f = float(b); + __retVal = mat4x2(f); +} + +mat4x2 __constructor(const vec2 c0, const vec2 c1, const vec2 c2, const vec2 c3) +{ + __retVal[0] = c0; + __retVal[1] = c1; + __retVal[2] = c2; + __retVal[3] = c3; +} + + + +//// mat4x3: 4 columns of vec3 + +mat4x3 __constructor(const float f00, const float f10, const float f20, + const float f01, const float f11, const float f21, + const float f02, const float f12, const float f22, + const float f03, const float f13, const float f23) +{ + __retVal[0].x = f00; + __retVal[0].y = f10; + __retVal[0].z = f20; + __retVal[1].x = f01; + __retVal[1].y = f11; + __retVal[1].z = f21; + __retVal[2].x = f02; + __retVal[2].y = f12; + __retVal[2].z = f22; + __retVal[3].x = f03; + __retVal[3].y = f13; + __retVal[3].z = f23; +} + +mat4x3 __constructor(const float f) +{ + __retVal = mat4x3( f, 0.0, 0.0, + 0.0, f, 0.0, + 0.0, 0.0, f, + 0.0, 0.0, 0.0); +} + +mat4x3 __constructor(const int i) +{ + const float f = float(i); + __retVal = mat4x3(f); +} + +mat4x3 __constructor(const bool b) +{ + const float f = float(b); + __retVal = mat4x3(f); +} + +mat4x3 __constructor(const vec3 c0, const vec3 c1, const vec3 c2, const vec3 c3) +{ + __retVal[0] = c0; + __retVal[1] = c1; + __retVal[2] = c2; + __retVal[3] = c3; +} + + + +//// misc assorted matrix constructors + +mat2 __constructor(const mat2 m) +{ + __retVal = m; +} + +mat2 __constructor(const mat3x2 m) +{ + __retVal = mat2(m[0], m[1]); +} + +mat2 __constructor(const mat4x2 m) +{ + __retVal = mat2(m[0], m[1]); +} + +mat2 __constructor(const mat2x3 m) +{ + __retVal = mat2(m[0].xy, m[1].xy); +} + +mat2 __constructor(const mat2x4 m) +{ + __retVal = mat2(m[0].xy, m[1].xy); +} + +mat2 __constructor(const mat3 m) +{ + __retVal = mat2(m[0].xy, m[1].xy); +} + +mat2 __constructor(const mat3x4 m) +{ + __retVal = mat2(m[0].xy, m[1].xy); +} + +mat2 __constructor(const mat4x3 m) +{ + __retVal = mat2(m[0].xy, m[1].xy); +} + +mat2 __constructor(const mat4 m) +{ + __retVal = mat2(m[0].xy, m[1].xy); +} + + + +mat2x3 __constructor(const mat2x3 m) +{ + __retVal = m; +} + +mat2x3 __constructor(const mat3 m) +{ + __retVal = mat2x3(m[0], m[1]); +} + +mat2x3 __constructor(const mat4x3 m) +{ + __retVal = mat2x3(m[0], m[1]); +} + +mat2x3 __constructor(const mat2x4 m) +{ + __retVal = mat2x3(m[0].xyz, m[1].xyz); +} + +mat2x3 __constructor(const mat3x4 m) +{ + __retVal = mat2x3(m[0].xyz, m[1].xyz); +} + +mat2x3 __constructor(const mat4 m) +{ + __retVal = mat2x3(m[0].xyz, m[1].xyz); +} + +mat2x3 __constructor(const mat2 m) +{ + __retVal = mat2x3(m[0].x, m[0].y, 0.0, + m[1].x, m[1].y, 0.0); +} + +mat2x3 __constructor(const mat3x2 m) +{ + __retVal = mat2x3(m[0].x, m[0].y, 0.0, + m[1].x, m[1].y, 0.0); +} + +mat2x3 __constructor(const mat4x2 m) +{ + __retVal = mat2x3(m[0].x, m[0].y, 0.0, + m[1].x, m[1].y, 0.0); +} + + + +mat2x4 __constructor(const mat2x4 m) +{ + __retVal = m; +} + +mat2x4 __constructor(const mat3x4 m) +{ + __retVal = mat2x4(m[0], m[1]); +} + +mat2x4 __constructor(const mat4 m) +{ + __retVal = mat2x4(m[0], m[1]); +} + +mat2x4 __constructor(const mat2x3 m) +{ + __retVal = mat2x4(m[0].x, m[0].y, m[0].z, 0.0, + m[1].x, m[1].y, m[1].z, 0.0); +} + +mat2x4 __constructor(const mat3 m) +{ + __retVal = mat2x4(m[0].x, m[0].y, m[0].z, 0.0, + m[1].x, m[1].y, m[1].z, 0.0); +} + +mat2x4 __constructor(const mat4x3 m) +{ + __retVal = mat2x4(m[0].x, m[0].y, m[0].z, 0.0, + m[1].x, m[1].y, m[1].z, 0.0); +} + +mat2x4 __constructor(const mat2 m) +{ + __retVal = mat2x4(m[0].x, m[1].y, 0.0, 0.0, + m[1].x, m[1].y, 0.0, 0.0); +} + +mat2x4 __constructor(const mat3x2 m) +{ + __retVal = mat2x4(m[0].x, m[0].y, 0.0, 0.0, + m[1].x, m[1].y, 0.0, 0.0); +} + +mat2x4 __constructor(const mat4x2 m) +{ + __retVal = mat2x4(m[0].x, m[0].y, 0.0, 0.0, + m[1].x, m[1].y, 0.0, 0.0); +} + + + +mat3x2 __constructor(const mat3x2 m) +{ + __retVal = m; +} + +mat3x2 __constructor(const mat4x2 m) +{ + __retVal = mat3x2(m[0], m[1], m[2]); +} + +mat3x2 __constructor(const mat3 m) +{ + __retVal = mat3x2(m[0], m[1], m[2]); +} + +mat3x2 __constructor(const mat3x4 m) +{ + __retVal = mat3x2(m[0].x, m[0].y, + m[1].x, m[1].y, + m[2].x, m[2].y); +} + +mat3x2 __constructor(const mat4x3 m) +{ + __retVal = mat3x2(m[0].x, m[0].y, + m[1].x, m[1].y, + m[2].x, m[2].y); +} + +mat3x2 __constructor(const mat4 m) +{ + __retVal = mat3x2(m[0].x, m[0].y, + m[1].x, m[1].y, + 0.0, 0.0); +} + +mat3x2 __constructor(const mat2 m) +{ + __retVal = mat3x2(m[0], m[1], vec2(0.0)); +} + +mat3x2 __constructor(const mat2x3 m) +{ + __retVal = mat3x2(m[0].x, m[0].y, + m[1].x, m[1].y, + 0.0, 0.0); +} + +mat3x2 __constructor(const mat2x4 m) +{ + __retVal = mat3x2(m[0].x, m[0].y, + m[1].x, m[1].y, + 0.0, 0.0); +} + + + + +mat3 __constructor(const mat3 m) +{ + __retVal = m; +} + +mat3 __constructor(const mat4x3 m) +{ + __retVal = mat3 ( + m[0], + m[1], + m[2] + ); +} + +mat3 __constructor(const mat3x4 m) +{ + __retVal = mat3 ( + m[0].xyz, + m[1].xyz, + m[2].xyz + ); +} + +mat3 __constructor(const mat4 m) +{ + __retVal = mat3 ( + m[0].xyz, + m[1].xyz, + m[2].xyz + ); +} + +mat3 __constructor(const mat2x3 m) +{ + __retVal = mat3 ( + m[0], + m[1], + 0., 0., 1. + ); +} + +mat3 __constructor(const mat2x4 m) +{ + __retVal = mat3 ( + m[0].xyz, + m[1].xyz, + 0., 0., 1. + ); +} + +mat3 __constructor(const mat3x2 m) +{ + __retVal = mat3 ( + m[0], 0., + m[1], 0., + m[2], 1. + ); +} + +mat3 __constructor(const mat4x2 m) +{ + __retVal = mat3 ( + m[0], 0., + m[1], 0., + m[2], 1. + ); +} + +mat3 __constructor(const mat2 m) +{ + __retVal = mat3 ( + m[0], 0., + m[1], 0., + 0., 0., 1. + ); +} + + +mat3x4 __constructor(const mat3x4 m) +{ + __retVal = m; +} + +mat3x4 __constructor(const mat4 m) +{ + __retVal = mat3x4 ( + m[0], + m[1], + m[2] + ); +} + +mat3x4 __constructor(const mat3 m) +{ + __retVal = mat3x4 ( + m[0], 0., + m[1], 0., + m[2], 0. + ); +} + +mat3x4 __constructor(const mat4x3 m) +{ + __retVal = mat3x4 ( + m[0], 0., + m[1], 0., + m[2], 0. + ); +} + +mat3x4 __constructor(const mat2x4 m) +{ + __retVal = mat3x4 ( + m[0], + m[1], + 0., 0., 1., 0. + ); +} + +mat3x4 __constructor(const mat2x3 m) +{ + __retVal = mat3x4 ( + m[0], 0., + m[1], 0., + 0., 0., 1., 0. + ); +} + +mat3x4 __constructor(const mat3x2 m) +{ + __retVal = mat3x4 ( + m[0], 0., 0., + m[1], 0., 0., + m[2], 1., 0. + ); +} + +mat3x4 __constructor(const mat4x2 m) +{ + __retVal = mat3x4 ( + m[0], 0., 0., + m[1], 0., 0., + m[2], 1., 0. + ); +} + +mat3x4 __constructor(const mat2 m) +{ + __retVal = mat3x4 ( + m[0], 0., 0., + m[1], 0., 0., + 0., 0., 1., 0. + ); +} + + +mat4x2 __constructor(const mat4x2 m) +{ + __retVal = m; +} + +mat4x2 __constructor(const mat4x3 m) +{ + __retVal = mat4x2 ( + m[0].xy, + m[1].xy, + m[2].xy, + m[3].xy + ); +} + +mat4x2 __constructor(const mat4 m) +{ + __retVal = mat4x2 ( + m[0].xy, + m[1].xy, + m[2].xy, + m[3].xy + ); +} + +mat4x2 __constructor(const mat3x2 m) +{ + __retVal = mat4x2 ( + m[0], + m[1], + 0., 0. + ); +} + +mat4x2 __constructor(const mat3 m) +{ + __retVal = mat4x2 ( + m[0].xy, + m[1].xy, + m[2].xy, + 0., 0. + ); +} + +mat4x2 __constructor(const mat3x4 m) +{ + __retVal = mat4x2 ( + m[0].xy, + m[1].xy, + m[2].xy, + 0., 0. + ); +} + +mat4x2 __constructor(const mat2 m) +{ + __retVal = mat4x2 ( + m[0], + m[1], + 0., 0., + 0., 0. + ); +} + +mat4x2 __constructor(const mat2x3 m) +{ + __retVal = mat4x2 ( + m[0].xy, + m[1].xy, + 0., 0., + 0., 0. + ); +} + +mat4x2 __constructor(const mat2x4 m) +{ + __retVal = mat4x2 ( + m[0].xy, + m[1].xy, + 0., 0., + 0., 0. + ); +} + + +mat4x3 __constructor(const mat4x3 m) +{ + __retVal = m; +} + +mat4x3 __constructor(const mat4 m) +{ + __retVal = mat4x3 ( + m[0].xyz, + m[1].xyz, + m[2].xyz, + m[3].xyz + ); +} + +mat4x3 __constructor(const mat3 m) +{ + __retVal = mat4x3 ( + m[0], + m[1], + m[2], + 0., 0., 0. + ); +} + +mat4x3 __constructor(const mat3x4 m) +{ + __retVal = mat4x3 ( + m[0].xyz, + m[1].xyz, + m[2].xyz, + 0., 0., 0. + ); +} + +mat4x3 __constructor(const mat4x2 m) +{ + __retVal = mat4x3 ( + m[0], 0., + m[1], 0., + m[2], 1., + m[3], 0. + ); +} + +mat4x3 __constructor(const mat2x3 m) +{ + __retVal = mat4x3 ( + m[0], + m[1], + 0., 0., 1., + 0., 0., 0. + ); +} + +mat4x3 __constructor(const mat3x2 m) +{ + __retVal = mat4x3 ( + m[0], 0., + m[1], 0., + m[2], 1., + 0., 0., 0. + ); +} + +mat4x3 __constructor(const mat2x4 m) +{ + __retVal = mat4x3 ( + m[0].xyz, + m[1].xyz, + 0., 0., 1., + 0., 0., 0. + ); +} + +mat4x3 __constructor(const mat2 m) +{ + __retVal = mat4x3 ( + m[0], 0., + m[1], 0., + 0., 0., 1., + 0., 0., 0. + ); +} + + +mat4 __constructor(const mat4 m) +{ + __retVal = m; +} + +mat4 __constructor(const mat3x4 m) +{ + __retVal = mat4 ( + m[0], + m[1], + m[2], + 0., 0., 0., 1. + ); +} + +mat4 __constructor(const mat4x3 m) +{ + __retVal = mat4 ( + m[0], 0., + m[1], 0., + m[2], 0., + m[3], 1. + ); +} + +mat4 __constructor(const mat2x4 m) +{ + __retVal = mat4 ( + m[0], + m[1], + 0., 0., 1., 0., + 0., 0., 0., 1. + ); +} + +mat4 __constructor(const mat4x2 m) +{ + __retVal = mat4 ( + m[0], 0., 0., + m[1], 0., 0., + m[2], 1., 0., + m[3], 0., 1. + ); +} + +mat4 __constructor(const mat3 m) +{ + __retVal = mat4 ( + m[0], 0., + m[1], 0., + m[2], 0., + 0., 0., 0., 1. + ); +} + +mat4 __constructor(const mat2x3 m) +{ + __retVal = mat4 ( + m[0], 0., + m[1], 0., + 0., 0., 1., 0., + 0., 0., 0., 1. + ); +} + +mat4 __constructor(const mat3x2 m) +{ + __retVal = mat4 ( + m[0], 0., 0., + m[1], 0., 0., + m[2], 1., 0., + 0., 0., 0., 1. + ); +} + +mat4 __constructor(const mat2 m) +{ + __retVal = mat4 ( + m[0], 0., 0., + m[1], 0., 0., + 0., 0., 1., 0., + 0., 0., 0., 1. + ); +} + + +void __operator += (inout mat2x3 m, const mat2x3 n) { + m[0] += n[0]; + m[1] += n[1]; +} + +void __operator += (inout mat2x4 m, const mat2x4 n) { + m[0] += n[0]; + m[1] += n[1]; +} + +void __operator += (inout mat3x2 m, const mat3x2 n) { + m[0] += n[0]; + m[1] += n[1]; + m[2] += n[2]; +} + +void __operator += (inout mat3x4 m, const mat3x4 n) { + m[0] += n[0]; + m[1] += n[1]; + m[2] += n[2]; +} + +void __operator += (inout mat4x2 m, const mat4x2 n) { + m[0] += n[0]; + m[1] += n[1]; + m[2] += n[2]; + m[3] += n[3]; +} + +void __operator += (inout mat4x3 m, const mat4x3 n) { + m[0] += n[0]; + m[1] += n[1]; + m[2] += n[2]; + m[3] += n[3]; +} + + +void __operator -= (inout mat2x3 m, const mat2x3 n) { + m[0] -= n[0]; + m[1] -= n[1]; +} + +void __operator -= (inout mat2x4 m, const mat2x4 n) { + m[0] -= n[0]; + m[1] -= n[1]; +} + +void __operator -= (inout mat3x2 m, const mat3x2 n) { + m[0] -= n[0]; + m[1] -= n[1]; + m[2] -= n[2]; +} + +void __operator -= (inout mat3x4 m, const mat3x4 n) { + m[0] -= n[0]; + m[1] -= n[1]; + m[2] -= n[2]; +} + +void __operator -= (inout mat4x2 m, const mat4x2 n) { + m[0] -= n[0]; + m[1] -= n[1]; + m[2] -= n[2]; + m[3] -= n[3]; +} + +void __operator -= (inout mat4x3 m, const mat4x3 n) { + m[0] -= n[0]; + m[1] -= n[1]; + m[2] -= n[2]; + m[3] -= n[3]; +} + + +void __operator /= (inout mat2x3 m, const mat2x3 n) { + m[0] /= n[0]; + m[1] /= n[1]; +} + +void __operator /= (inout mat2x4 m, const mat2x4 n) { + m[0] /= n[0]; + m[1] /= n[1]; +} + +void __operator /= (inout mat3x2 m, const mat3x2 n) { + m[0] /= n[0]; + m[1] /= n[1]; + m[2] /= n[2]; +} + +void __operator /= (inout mat3x4 m, const mat3x4 n) { + m[0] /= n[0]; + m[1] /= n[1]; + m[2] /= n[2]; +} + +void __operator /= (inout mat4x2 m, const mat4x2 n) { + m[0] /= n[0]; + m[1] /= n[1]; + m[2] /= n[2]; + m[3] /= n[3]; +} + +void __operator /= (inout mat4x3 m, const mat4x3 n) { + m[0] /= n[0]; + m[1] /= n[1]; + m[2] /= n[2]; + m[3] /= n[3]; +} + + +vec3 __operator * (const mat2x3 m, const vec2 v) +{ + __retVal.x = v.x * m[0].x + v.y * m[1].x; + __retVal.y = v.x * m[0].y + v.y * m[1].y; + __retVal.z = v.x * m[0].z + v.y * m[1].z; +} + +vec4 __operator * (const mat2x4 m, const vec2 v) +{ + __retVal.x = v.x * m[0].x + v.y * m[1].x; + __retVal.y = v.x * m[0].y + v.y * m[1].y; + __retVal.z = v.x * m[0].z + v.y * m[1].z; + __retVal.w = v.x * m[0].w + v.y * m[1].w; +} + +vec2 __operator * (const mat3x2 m, const vec3 v) +{ + __retVal.x = v.x * m[0].x + v.y * m[1].x + v.z * m[2].x; + __retVal.y = v.x * m[0].y + v.y * m[1].y + v.z * m[2].y; +} + +vec4 __operator * (const mat3x4 m, const vec3 v) +{ + __retVal.x = v.x * m[0].x + v.y * m[1].x + v.z * m[2].x; + __retVal.y = v.x * m[0].y + v.y * m[1].y + v.z * m[2].y; + __retVal.z = v.x * m[0].z + v.y * m[1].z + v.z * m[2].z; + __retVal.w = v.x * m[0].w + v.y * m[1].w + v.z * m[2].w; +} + +vec2 __operator * (const mat4x2 m, const vec4 v) +{ + __retVal.x = v.x * m[0].x + v.y * m[1].x + v.z * m[2].x + v.w * m[3].x; + __retVal.y = v.x * m[0].y + v.y * m[1].y + v.z * m[2].y + v.w * m[3].y; +} + +vec3 __operator * (const mat4x3 m, const vec4 v) +{ + __retVal.x = v.x * m[0].x + v.y * m[1].x + v.z * m[2].x + v.w * m[3].x; + __retVal.y = v.x * m[0].y + v.y * m[1].y + v.z * m[2].y + v.w * m[3].y; + __retVal.z = v.x * m[0].z + v.y * m[1].z + v.z * m[2].z + v.w * m[3].z; +} + + +mat3x2 __operator * (const mat2 m, const mat3x2 n) +{ + //return mat3x2 (m * n[0], m * n[1], m * n[2]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; + __retVal[2] = m * n[2]; +} + +mat4x2 __operator * (const mat2 m, const mat4x2 n) +{ + //return mat4x2 (m * n[0], m * n[1], m * n[2], m * n[3]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; + __retVal[2] = m * n[2]; + __retVal[3] = m * n[3]; +} + + +mat2x3 __operator * (const mat2x3 m, const mat2 n) +{ + //return mat2x3 (m * n[0], m * n[1]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; +} + +mat3 __operator * (const mat2x3 m, const mat3x2 n) +{ + //return mat3 (m * n[0], m * n[1], m * n[2]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; + __retVal[2] = m * n[2]; +} + +mat4x3 __operator * (const mat2x3 m, const mat4x2 n) +{ + //return mat4x3 (m * n[0], m * n[1], m * n[2], m * n[3]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; + __retVal[2] = m * n[2]; + __retVal[3] = m * n[3]; +} + + +mat2x4 __operator * (const mat2x4 m, const mat2 n) +{ + //return mat2x4 (m * n[0], m * n[1]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; +} + +mat3x4 __operator * (const mat2x4 m, const mat3x2 n) +{ + //return mat3x4 (m * n[0], m * n[1], m * n[2]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; + __retVal[2] = m * n[2]; +} + +mat4 __operator * (const mat2x4 m, const mat4x2 n) +{ + //return mat4 (m * n[0], m * n[1], m * n[2], m * n[3]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; + __retVal[2] = m * n[2]; + __retVal[3] = m * n[3]; +} + + +mat2 __operator * (const mat3x2 m, const mat2x3 n) +{ + //return mat2 (m * n[0], m * n[1]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; +} + +mat3x2 __operator * (const mat3x2 m, const mat3 n) +{ + //return mat3x2 (m * n[0], m * n[1], m * n[2]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; + __retVal[2] = m * n[2]; +} + +mat4x2 __operator * (const mat3x2 m, const mat4x3 n) +{ + //return mat4x2 (m * n[0], m * n[1], m * n[2], m * n[3]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; + __retVal[2] = m * n[2]; + __retVal[3] = m * n[3]; +} + + +mat2x3 __operator * (const mat3 m, const mat2x3 n) +{ + //return mat2x3 (m * n[0], m * n[1]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; +} + +mat4x3 __operator * (const mat3 m, const mat4x3 n) +{ + //return mat4x3 (m * n[0], m * n[1], m * n[2], m * n[3]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; + __retVal[2] = m * n[2]; + __retVal[3] = m * n[3]; +} + + +mat2x4 __operator * (const mat3x4 m, const mat2x3 n) +{ + //return mat2x4 (m * n[0], m * n[1]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; +} + +mat3x4 __operator * (const mat3x4 m, const mat3 n) +{ + //return mat3x4 (m * n[0], m * n[1], m * n[2]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; + __retVal[2] = m * n[2]; +} + +mat4 __operator * (const mat3x4 m, const mat4x3 n) +{ + //return mat4 (m * n[0], m * n[1], m * n[2], m * n[3]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; + __retVal[2] = m * n[2]; + __retVal[3] = m * n[3]; +} + + +mat2 __operator * (const mat4x2 m, const mat2x4 n) +{ + //return = mat2 (m * n[0], m * n[1]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; +} + +mat3x2 __operator * (const mat4x2 m, const mat3x4 n) +{ + //return mat3x2 (m * n[0], m * n[1], m * n[2]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; + __retVal[2] = m * n[2]; +} + +mat4x2 __operator * (const mat4x2 m, const mat4 n) +{ + //return mat4x2 (m * n[0], m * n[1], m * n[2], m * n[3]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; + __retVal[2] = m * n[2]; + __retVal[3] = m * n[3]; +} + + +mat2x3 __operator * (const mat4x3 m, const mat2x4 n) +{ + //return mat2x3 (m * n[0], m * n[1]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; +} + +mat3 __operator * (const mat4x3 m, const mat3x4 n) +{ + //return mat3 (m * n[0], m * n[1], m * n[2]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; + __retVal[2] = m * n[2]; +} + +mat4x3 __operator * (const mat4x3 m, const mat4 n) +{ + //return mat4x3 (m * n[0], m * n[1], m * n[2], m * n[3]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; + __retVal[2] = m * n[2]; + __retVal[3] = m * n[3]; +} + + +mat2x4 __operator * (const mat4 m, const mat2x4 n) +{ + //return mat2x4 (m * n[0], m * n[1]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; +} + +mat3x4 __operator * (const mat4 m, const mat3x4 n) +{ + //return mat3x4 (m * n[0], m * n[1], m * n[2]); + __retVal[0] = m * n[0]; + __retVal[1] = m * n[1]; + __retVal[2] = m * n[2]; +} + + +void __operator *= (inout mat2x3 m, const mat2 n) { + m = m * n; +} + +void __operator *= (inout mat2x4 m, const mat2 n) { + m = m * n; +} + +void __operator *= (inout mat3x2 m, const mat3 n) { + m = m * n; +} + +void __operator *= (inout mat3x4 m, const mat3 n) { + m = m * n; +} + +void __operator *= (inout mat4x2 m, const mat4 n) { + m = m * n; +} + +void __operator *= (inout mat4x3 m, const mat4 n) { + m = m * n; +} + + +vec3 __operator * (const vec2 v, const mat3x2 m) +{ + __retVal.x = dot(v, m[0]); + __retVal.y = dot(v, m[1]); + __retVal.z = dot(v, m[2]); +} + +vec4 __operator * (const vec2 v, const mat4x2 m) +{ + __retVal.x = dot(v, m[0]); + __retVal.y = dot(v, m[1]); + __retVal.z = dot(v, m[2]); + __retVal.w = dot(v, m[3]); +} + +vec2 __operator * (const vec3 v, const mat2x3 m) +{ + __retVal.x = dot(v, m[0]); + __retVal.y = dot(v, m[1]); +} + +vec4 __operator * (const vec3 v, const mat4x3 m) +{ + __retVal.x = dot(v, m[0]); + __retVal.y = dot(v, m[1]); + __retVal.z = dot(v, m[2]); + __retVal.w = dot(v, m[3]); +} + +vec2 __operator * (const vec4 v, const mat2x4 m) +{ + __retVal.x = dot(v, m[0]); + __retVal.y = dot(v, m[1]); +} + +vec3 __operator * (const vec4 v, const mat3x4 m) +{ + __retVal.x = dot(v, m[0]); + __retVal.y = dot(v, m[1]); + __retVal.z = dot(v, m[2]); +} + + +void __operator += (inout mat2x3 m, const float a) { + m[0] += a; + m[1] += a; +} + +void __operator += (inout mat2x4 m, const float a) { + m[0] += a; + m[1] += a; +} + +void __operator += (inout mat3x2 m, const float a) { + m[0] += a; + m[1] += a; + m[2] += a; +} + +void __operator += (inout mat3x4 m, const float a) { + m[0] += a; + m[1] += a; + m[2] += a; +} + +void __operator += (inout mat4x2 m, const float a) { + m[0] += a; + m[1] += a; + m[2] += a; + m[3] += a; +} + +void __operator += (inout mat4x3 m, const float a) { + m[0] += a; + m[1] += a; + m[2] += a; + m[3] += a; +} + + +void __operator -= (inout mat2x3 m, const float a) { + m[0] -= a; + m[1] -= a; +} + +void __operator -= (inout mat2x4 m, const float a) { + m[0] -= a; + m[1] -= a; +} + +void __operator -= (inout mat3x2 m, const float a) { + m[0] -= a; + m[1] -= a; + m[2] -= a; +} + +void __operator -= (inout mat3x4 m, const float a) { + m[0] -= a; + m[1] -= a; + m[2] -= a; +} + +void __operator -= (inout mat4x2 m, const float a) { + m[0] -= a; + m[1] -= a; + m[2] -= a; + m[3] -= a; +} + +void __operator -= (inout mat4x3 m, const float a) { + m[0] -= a; + m[1] -= a; + m[2] -= a; + m[3] -= a; +} + + +void __operator *= (inout mat2x3 m, const float a) { + m[0] *= a; + m[1] *= a; +} + +void __operator *= (inout mat2x4 m, const float a) { + m[0] *= a; + m[1] *= a; +} + +void __operator *= (inout mat3x2 m, const float a) { + m[0] *= a; + m[1] *= a; + m[2] *= a; +} + +void __operator *= (inout mat3x4 m, const float a) { + m[0] *= a; + m[1] *= a; + m[2] *= a; +} + +void __operator *= (inout mat4x2 m, const float a) { + m[0] *= a; + m[1] *= a; + m[2] *= a; + m[3] *= a; +} + +void __operator *= (inout mat4x3 m, const float a) { + m[0] *= a; + m[1] *= a; + m[2] *= a; + m[3] *= a; +} + + +void __operator /= (inout mat2x3 m, const float a) { + m[0] /= a; + m[1] /= a; +} + +void __operator /= (inout mat2x4 m, const float a) { + m[0] /= a; + m[1] /= a; +} + +void __operator /= (inout mat3x2 m, const float a) { + m[0] /= a; + m[1] /= a; + m[2] /= a; +} + +void __operator /= (inout mat3x4 m, const float a) { + m[0] /= a; + m[1] /= a; + m[2] /= a; +} + +void __operator /= (inout mat4x2 m, const float a) { + m[0] /= a; + m[1] /= a; + m[2] /= a; + m[3] /= a; +} + +void __operator /= (inout mat4x3 m, const float a) { + m[0] /= a; + m[1] /= a; + m[2] /= a; + m[3] /= a; +} + + +mat2x3 __operator + (const mat2x3 m, const mat2x3 n) { + return mat2x3 (m[0] + n[0], m[1] + n[1]); +} + +mat2x4 __operator + (const mat2x4 m, const mat2x4 n) { + return mat2x4 (m[0] + n[0], m[1] + n[1]); +} + +mat3x2 __operator + (const mat3x2 m, const mat3x2 n) { + return mat3x2 (m[0] + n[0], m[1] + n[1], m[2] + n[2]); +} + +mat3x4 __operator + (const mat3x4 m, const mat3x4 n) { + return mat3x4 (m[0] + n[0], m[1] + n[1], m[2] + n[2]); +} + +mat4x2 __operator + (const mat4x2 m, const mat4x2 n) { + return mat4x2 (m[0] + n[0], m[1] + n[1], m[2] + n[2], m[3] + n[3]); +} + +mat4x3 __operator + (const mat4x3 m, const mat4x3 n) { + return mat4x3 (m[0] + n[0], m[1] + n[1], m[2] + n[2], m[3] + n[3]); +} + + +mat2x3 __operator - (const mat2x3 m, const mat2x3 n) { + return mat2x3 (m[0] - n[0], m[1] - n[1]); +} + +mat2x4 __operator - (const mat2x4 m, const mat2x4 n) { + return mat2x4 (m[0] - n[0], m[1] - n[1]); +} + +mat3x2 __operator - (const mat3x2 m, const mat3x2 n) { + return mat3x2 (m[0] - n[0], m[1] - n[1], m[2] - n[2]); +} + +mat3x4 __operator - (const mat3x4 m, const mat3x4 n) { + return mat3x4 (m[0] - n[0], m[1] - n[1], m[2] - n[2]); +} + +mat4x2 __operator - (const mat4x2 m, const mat4x2 n) { + return mat4x2 (m[0] - n[0], m[1] - n[1], m[2] - n[2], m[3] - n[3]); +} + +mat4x3 __operator - (const mat4x3 m, const mat4x3 n) { + return mat4x3 (m[0] - n[0], m[1] - n[1], m[2] - n[2], m[3] - n[3]); +} + + +mat2x3 __operator / (const mat2x3 m, const mat2x3 n) { + return mat2x3 (m[0] / n[0], m[1] / n[1]); +} + +mat2x4 __operator / (const mat2x4 m, const mat2x4 n) { + return mat2x4 (m[0] / n[0], m[1] / n[1]); +} + +mat3x2 __operator / (const mat3x2 m, const mat3x2 n) { + return mat3x2 (m[0] / n[0], m[1] / n[1], m[2] / n[2]); +} + +mat3x4 __operator / (const mat3x4 m, const mat3x4 n) { + return mat3x4 (m[0] / n[0], m[1] / n[1], m[2] / n[2]); +} + +mat4x2 __operator / (const mat4x2 m, const mat4x2 n) { + return mat4x2 (m[0] / n[0], m[1] / n[1], m[2] / n[2], m[3] / n[3]); +} + +mat4x3 __operator / (const mat4x3 m, const mat4x3 n) { + return mat4x3 (m[0] / n[0], m[1] / n[1], m[2] / n[2], m[3] / n[3]); +} + + +mat2x3 __operator + (const float a, const mat2x3 n) { + return mat2x3 (a + n[0], a + n[1]); +} + +mat2x3 __operator + (const mat2x3 m, const float b) { + return mat2x3 (m[0] + b, m[1] + b); +} + +mat2x4 __operator + (const float a, const mat2x4 n) { + return mat2x4 (a + n[0], a + n[1]); +} + +mat2x4 __operator + (const mat2x4 m, const float b) { + return mat2x4 (m[0] + b, m[1] + b); +} + +mat3x2 __operator + (const float a, const mat3x2 n) { + return mat3x2 (a + n[0], a + n[1], a + n[2]); +} + +mat3x2 __operator + (const mat3x2 m, const float b) { + return mat3x2 (m[0] + b, m[1] + b, m[2] + b); +} + +mat3x4 __operator + (const float a, const mat3x4 n) { + return mat3x4 (a + n[0], a + n[1], a + n[2]); +} + +mat3x4 __operator + (const mat3x4 m, const float b) { + return mat3x4 (m[0] + b, m[1] + b, m[2] + b); +} + +mat4x2 __operator + (const mat4x2 m, const float b) { + return mat4x2 (m[0] + b, m[1] + b, m[2] + b, m[3] + b); +} + +mat4x2 __operator + (const float a, const mat4x2 n) { + return mat4x2 (a + n[0], a + n[1], a + n[2], a + n[3]); +} + +mat4x3 __operator + (const mat4x3 m, const float b) { + return mat4x3 (m[0] + b, m[1] + b, m[2] + b, m[3] + b); +} + +mat4x3 __operator + (const float a, const mat4x3 n) { + return mat4x3 (a + n[0], a + n[1], a + n[2], a + n[3]); +} + + +mat2x3 __operator - (const float a, const mat2x3 n) { + return mat2x3 (a - n[0], a - n[1]); +} + +mat2x3 __operator - (const mat2x3 m, const float b) { + return mat2x3 (m[0] - b, m[1] - b); +} + +mat2x4 __operator - (const float a, const mat2x4 n) { + return mat2x4 (a - n[0], a - n[1]); +} + +mat2x4 __operator - (const mat2x4 m, const float b) { + return mat2x4 (m[0] - b, m[1] - b); +} + +mat3x2 __operator - (const float a, const mat3x2 n) { + return mat3x2 (a - n[0], a - n[1], a - n[2]); +} + +mat3x2 __operator - (const mat3x2 m, const float b) { + return mat3x2 (m[0] - b, m[1] - b, m[2] - b); +} + +mat3x4 __operator - (const float a, const mat3x4 n) { + return mat3x4 (a - n[0], a - n[1], a - n[2]); +} + +mat3x4 __operator - (const mat3x4 m, const float b) { + return mat3x4 (m[0] - b, m[1] - b, m[2] - b); +} + +mat4x2 __operator - (const mat4x2 m, const float b) { + return mat4x2 (m[0] - b, m[1] - b, m[2] - b, m[3] - b); +} + +mat4x2 __operator - (const float a, const mat4x2 n) { + return mat4x2 (a - n[0], a - n[1], a - n[2], a - n[3]); +} + +mat4x3 __operator - (const mat4x3 m, const float b) { + return mat4x3 (m[0] - b, m[1] - b, m[2] - b, m[3] - b); +} + +mat4x3 __operator - (const float a, const mat4x3 n) { + return mat4x3 (a - n[0], a - n[1], a - n[2], a - n[3]); +} + + +mat2x3 __operator * (const float a, const mat2x3 n) +{ + //return mat2x3 (a * n[0], a * n[1]); + __retVal[0] = a * n[0]; + __retVal[1] = a * n[1]; +} + +mat2x3 __operator * (const mat2x3 m, const float b) +{ + //return mat2x3 (m[0] * b, m[1] * b); + __retVal[0] = m[0] * b; + __retVal[1] = m[1] * b; +} + +mat2x4 __operator * (const float a, const mat2x4 n) +{ + //return mat2x4 (a * n[0], a * n[1]); + __retVal[0] = a * n[0]; + __retVal[1] = a * n[1]; +} + +mat2x4 __operator * (const mat2x4 m, const float b) +{ + //return mat2x4 (m[0] * b, m[1] * b); + __retVal[0] = m[0] * b; + __retVal[1] = m[1] * b; +} + +mat3x2 __operator * (const float a, const mat3x2 n) +{ + //return mat3x2 (a * n[0], a * n[1], a * n[2]); + __retVal[0] = a * n[0]; + __retVal[1] = a * n[1]; + __retVal[2] = a * n[2]; +} + +mat3x2 __operator * (const mat3x2 m, const float b) +{ + //return mat3x2 (m[0] * b, m[1] * b, m[2] * b); + __retVal[0] = m[0] * b; + __retVal[1] = m[1] * b; + __retVal[2] = m[2] * b; +} + +mat3x4 __operator * (const float a, const mat3x4 n) +{ + //return mat3x4 (a * n[0], a * n[1], a * n[2]); + __retVal[0] = a * n[0]; + __retVal[1] = a * n[1]; + __retVal[2] = a * n[2]; +} + +mat3x4 __operator * (const mat3x4 m, const float b) +{ + //return mat3x4 (m[0] * b, m[1] * b, m[2] * b); + __retVal[0] = m[0] * b; + __retVal[1] = m[1] * b; + __retVal[2] = m[2] * b; +} + +mat4x2 __operator * (const mat4x2 m, const float b) +{ + //return mat4x2 (m[0] * b, m[1] * b, m[2] * b, m[3] * b); + __retVal[0] = m[0] * b; + __retVal[1] = m[1] * b; + __retVal[2] = m[2] * b; + __retVal[3] = m[3] * b; +} + +mat4x2 __operator * (const float a, const mat4x2 n) +{ + //return mat4x2 (a * n[0], a * n[1], a * n[2], a * n[3]); + __retVal[0] = a * n[0]; + __retVal[1] = a * n[1]; + __retVal[2] = a * n[2]; + __retVal[3] = a * n[3]; +} + +mat4x3 __operator * (const mat4x3 m, const float b) +{ + //return mat4x3 (m[0] * b, m[1] * b, m[2] * b, m[3] * b); + __retVal[0] = m[0] * b; + __retVal[1] = m[1] * b; + __retVal[2] = m[2] * b; + __retVal[3] = m[3] * b; +} + +mat4x3 __operator * (const float a, const mat4x3 n) +{ + //return mat4x3 (a * n[0], a * n[1], a * n[2], a * n[3]); + __retVal[0] = a * n[0]; + __retVal[1] = a * n[1]; + __retVal[2] = a * n[2]; + __retVal[3] = a * n[3]; +} + + +mat2x3 __operator / (const float a, const mat2x3 n) +{ + //return mat2x3 (a / n[0], a / n[1]); + const float inv = 1.0 / a; + __retVal[0] = inv * n[0]; + __retVal[1] = inv * n[1]; +} + +mat2x3 __operator / (const mat2x3 m, const float b) +{ + //return mat2x3 (m[0] / b, m[1] / b); + const float inv = 1.0 / b; + __retVal[0] = m[0] * inv; + __retVal[1] = m[1] * inv; +} + +mat2x4 __operator / (const float a, const mat2x4 n) +{ + //return mat2x4 (a / n[0], a / n[1]); + const float inv = 1.0 / a; + __retVal[0] = inv * n[0]; + __retVal[1] = inv * n[1]; +} + +mat2x4 __operator / (const mat2x4 m, const float b) +{ + //return mat2x4 (m[0] / b, m[1] / b); + const float inv = 1.0 / b; + __retVal[0] = m[0] * inv; + __retVal[1] = m[1] * inv; +} + +mat3x2 __operator / (const float a, const mat3x2 n) +{ + //return mat3x2 (a / n[0], a / n[1], a / n[2]); + const float inv = 1.0 / a; + __retVal[0] = inv * n[0]; + __retVal[1] = inv * n[1]; + __retVal[2] = inv * n[2]; +} + +mat3x2 __operator / (const mat3x2 m, const float b) +{ + //return mat3x2 (m[0] / b, m[1] / b, m[2] / b); + const float inv = 1.0 / b; + __retVal[0] = m[0] * inv; + __retVal[1] = m[1] * inv; + __retVal[2] = m[2] * inv; +} + +mat3x4 __operator / (const float a, const mat3x4 n) +{ + //return mat3x4 (a / n[0], a / n[1], a / n[2]); + const float inv = 1.0 / a; + __retVal[0] = inv * n[0]; + __retVal[1] = inv * n[1]; + __retVal[2] = inv * n[2]; +} + +mat3x4 __operator / (const mat3x4 m, const float b) +{ + //return mat3x4 (m[0] / b, m[1] / b, m[2] / b); + const float inv = 1.0 / b; + __retVal[0] = m[0] * inv; + __retVal[1] = m[1] * inv; + __retVal[2] = m[2] * inv; +} + +mat4x2 __operator / (const mat4x2 m, const float b) +{ + //return mat4x2 (m[0] / b, m[1] / b, m[2] / b, m[3] / b); + const float inv = 1.0 / b; + __retVal[0] = m[0] * inv; + __retVal[1] = m[1] * inv; + __retVal[2] = m[2] * inv; + __retVal[3] = m[3] * inv; +} + +mat4x2 __operator / (const float a, const mat4x2 n) +{ + //return mat4x2 (a / n[0], a / n[1], a / n[2], a / n[3]); + const float inv = 1.0 / a; + __retVal[0] = inv * n[0]; + __retVal[1] = inv * n[1]; + __retVal[2] = inv * n[2]; + __retVal[3] = inv * n[3]; +} + +mat4x3 __operator / (const mat4x3 m, const float b) +{ + //return mat4x3 (m[0] / b, m[1] / b, m[2] / b, m[3] / b); + const float inv = 1.0 / b; + __retVal[0] = m[0] * inv; + __retVal[1] = m[1] * inv; + __retVal[2] = m[2] * inv; + __retVal[3] = m[3] * inv; +} + +mat4x3 __operator / (const float a, const mat4x3 n) +{ + //return mat4x3 (a / n[0], a / n[1], a / n[2], a / n[3]); + const float inv = 1.0 / a; + __retVal[0] = inv * n[0]; + __retVal[1] = inv * n[1]; + __retVal[2] = inv * n[2]; + __retVal[3] = inv * n[3]; +} + + +mat2x3 __operator - (const mat2x3 m) { + return mat2x3 (-m[0], -m[1]); +} + +mat2x4 __operator - (const mat2x4 m) { + return mat2x4 (-m[0], -m[1]); +} + +mat3x2 __operator - (const mat3x2 m) { + return mat3x2 (-m[0], -m[1], -m[2]); +} + +mat3x4 __operator - (const mat3x4 m) { + return mat3x4 (-m[0], -m[1], -m[2]); +} + +mat4x2 __operator - (const mat4x2 m) { + return mat4x2 (-m[0], -m[1], -m[2], -m[3]); +} + +mat4x3 __operator - (const mat4x3 m) { + return mat4x3 (-m[0], -m[1], -m[2], -m[3]); +} + + +void __operator -- (inout mat2x3 m) { + --m[0]; + --m[1]; +} + +void __operator -- (inout mat2x4 m) { + --m[0]; + --m[1]; +} + +void __operator -- (inout mat3x2 m) { + --m[0]; + --m[1]; + --m[2]; +} + +void __operator -- (inout mat3x4 m) { + --m[0]; + --m[1]; + --m[2]; +} + +void __operator -- (inout mat4x2 m) { + --m[0]; + --m[1]; + --m[2]; + --m[3]; +} + +void __operator -- (inout mat4x3 m) { + --m[0]; + --m[1]; + --m[2]; + --m[3]; +} + + +void __operator ++ (inout mat2x3 m) { + ++m[0]; + ++m[1]; +} + +void __operator ++ (inout mat2x4 m) { + ++m[0]; + ++m[1]; +} + +void __operator ++ (inout mat3x2 m) { + ++m[0]; + ++m[1]; + ++m[2]; +} + +void __operator ++ (inout mat3x4 m) { + ++m[0]; + ++m[1]; + ++m[2]; +} + +void __operator ++ (inout mat4x2 m) { + ++m[0]; + ++m[1]; + ++m[2]; + ++m[3]; +} + +void __operator ++ (inout mat4x3 m) { + ++m[0]; + ++m[1]; + ++m[2]; + ++m[3]; +} + diff --git a/mesalib/src/mesa/shader/slang/library/slang_120_core_gc.h b/mesalib/src/mesa/shader/slang/library/slang_120_core_gc.h new file mode 100644 index 000000000..1fdbddf7c --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_120_core_gc.h @@ -0,0 +1,764 @@ + +/* DO NOT EDIT - THIS FILE IS AUTOMATICALLY GENERATED FROM THE FOLLOWING FILE: */ +/* slang_120_core.gc */ + +5,1,90,95,0,0,26,0,1,1,1,0,0,9,0,102,48,48,0,0,1,1,0,0,9,0,102,49,48,0,0,1,1,0,0,9,0,102,50,48,0,0, +1,1,0,0,9,0,102,48,49,0,0,1,1,0,0,9,0,102,49,49,0,0,1,1,0,0,9,0,102,50,49,0,0,0,1,9,18,95,95,114, +101,116,86,97,108,0,16,8,48,0,57,59,120,0,18,102,48,48,0,20,0,9,18,95,95,114,101,116,86,97,108,0, 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+57,51,0,9,18,109,0,16,10,50,0,57,51,0,9,18,109,0,16,10,51,0,57,51,0,0,0 diff --git a/mesalib/src/mesa/shader/slang/library/slang_builtin_120_common.gc b/mesalib/src/mesa/shader/slang/library/slang_builtin_120_common.gc new file mode 100644 index 000000000..c6264c3b4 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_builtin_120_common.gc @@ -0,0 +1,200 @@ +/* + * Mesa 3-D graphics library + * Version: 6.6 + * + * Copyright (C) 2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +// +// From Shader Spec, ver. 1.20, rev. 6 +// + +// +// 8.5 Matrix Functions +// + +mat2x3 matrixCompMult (mat2x3 m, mat2x3 n) { + return mat2x3 (m[0] * n[0], m[1] * n[1]); +} + +mat2x4 matrixCompMult (mat2x4 m, mat2x4 n) { + return mat2x4 (m[0] * n[0], m[1] * n[1]); +} + +mat3x2 matrixCompMult (mat3x2 m, mat3x2 n) { + return mat3x2 (m[0] * n[0], m[1] * n[1], m[2] * n[2]); +} + +mat3x4 matrixCompMult (mat3x4 m, mat3x4 n) { + return mat3x4 (m[0] * n[0], m[1] * n[1], m[2] * n[2]); +} + +mat4x2 matrixCompMult (mat4x2 m, mat4x2 n) { + return mat4x2 (m[0] * n[0], m[1] * n[1], m[2] * n[2], m[3] * n[3]); +} + +mat4x3 matrixCompMult (mat4x3 m, mat4x3 n) { + return mat4x3 (m[0] * n[0], m[1] * n[1], m[2] * n[2], m[3] * n[3]); +} + +mat2 outerProduct (vec2 c, vec2 r) { + return mat2 ( + c.x * r.x, c.y * r.x, + c.x * r.y, c.y * r.y + ); +} + +mat3 outerProduct (vec3 c, vec3 r) { + return mat3 ( + c.x * r.x, c.y * r.x, c.z * r.x, + c.x * r.y, c.y * r.y, c.z * r.y, + c.x * r.z, c.y * r.z, c.z * r.z + ); +} + +mat4 outerProduct (vec4 c, vec4 r) { + return mat4 ( + c.x * r.x, c.y * r.x, c.z * r.x, c.w * r.x, + c.x * r.y, c.y * r.y, c.z * r.y, c.w * r.y, + c.x * r.z, c.y * r.z, c.z * r.z, c.w * r.z, + c.x * r.w, c.y * r.w, c.z * r.w, c.w * r.w + ); +} + +mat2x3 outerProduct (vec3 c, vec2 r) { + return mat2x3 ( + c.x * r.x, c.y * r.x, c.z * r.x, + c.x * r.y, c.y * r.y, c.z * r.y + ); +} + +mat3x2 outerProduct (vec2 c, vec3 r) { + return mat3x2 ( + c.x * r.x, c.y * r.x, + c.x * r.y, c.y * r.y, + c.x * r.z, c.y * r.z + ); +} + +mat2x4 outerProduct (vec4 c, vec2 r) { + return mat2x4 ( + c.x * r.x, c.y * r.x, c.z * r.x, c.w * r.x, + c.x * r.y, c.y * r.y, c.z * r.y, c.w * r.y + ); +} + +mat4x2 outerProduct (vec2 c, vec4 r) { + return mat4x2 ( + c.x * r.x, c.y * r.x, + c.x * r.y, c.y * r.y, + c.x * r.z, c.y * r.z, + c.x * r.w, c.y * r.w + ); +} + +mat3x4 outerProduct (vec4 c, vec3 r) { + return mat3x4 ( + c.x * r.x, c.y * r.x, c.z * r.x, c.w * r.x, + c.x * r.y, c.y * r.y, c.z * r.y, c.w * r.y, + c.x * r.z, c.y * r.z, c.z * r.z, c.w * r.z + ); +} + +mat4x3 outerProduct (vec3 c, vec4 r) { + return mat4x3 ( + c.x * r.x, c.y * r.x, c.z * r.x, + c.x * r.y, c.y * r.y, c.z * r.y, + c.x * r.z, c.y * r.z, c.z * r.z, + c.x * r.w, c.y * r.w, c.z * r.w + ); +} + +mat2 transpose (mat2 m) { + return mat2 ( + m[0].x, m[1].x, + m[0].y, m[1].y + ); +} + +mat3 transpose (mat3 m) { + return mat3 ( + m[0].x, m[1].x, m[2].x, + m[0].y, m[1].y, m[2].y, + m[0].z, m[1].z, m[2].z + ); +} + +mat4 transpose (mat4 m) { + return mat4 ( + m[0].x, m[1].x, m[2].x, m[3].x, + m[0].y, m[1].y, m[2].y, m[3].y, + m[0].z, m[1].z, m[2].z, m[3].z, + m[0].w, m[1].w, m[2].w, m[3].w + ); +} + +mat2x3 transpose (mat3x2 m) { + return mat2x3 ( + m[0].x, m[1].x, m[2].x, + m[0].y, m[1].y, m[2].y + ); +} + +mat3x2 transpose (mat2x3 m) { + return mat3x2 ( + m[0].x, m[1].x, + m[0].y, m[1].y, + m[0].z, m[1].z + ); +} + +mat2x4 transpose (mat4x2 m) { + return mat2x4 ( + m[0].x, m[1].x, m[2].x, m[3].x, + m[0].y, m[1].y, m[2].y, m[3].y + ); +} + +mat4x2 transpose (mat2x4 m) { + return mat4x2 ( + m[0].x, m[1].x, + m[0].y, m[1].y, + m[0].z, m[1].z, + m[0].w, m[1].w + ); +} + +mat3x4 transpose (mat4x3 m) { + return mat3x4 ( + m[0].x, m[1].x, m[2].x, m[3].x, + m[0].y, m[1].y, m[2].y, m[3].y, + m[0].z, m[1].z, m[2].z, m[3].z + ); +} + +mat4x3 transpose (mat3x4 m) { + return mat4x3 ( + m[0].x, m[1].x, m[2].x, + m[0].y, m[1].y, m[2].y, + m[0].z, m[1].z, m[2].z, + m[0].w, m[1].w, m[2].w + ); +} + diff --git a/mesalib/src/mesa/shader/slang/library/slang_builtin_120_common_gc.h b/mesalib/src/mesa/shader/slang/library/slang_builtin_120_common_gc.h new file mode 100644 index 000000000..c397b9f0f --- /dev/null +++ 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a/mesalib/src/mesa/shader/slang/library/slang_builtin_120_fragment.gc b/mesalib/src/mesa/shader/slang/library/slang_builtin_120_fragment.gc new file mode 100644 index 000000000..7d516046a --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_builtin_120_fragment.gc @@ -0,0 +1,30 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +// +// From Shader Spec, ver. 1.20, rev. 6 +// + +varying vec2 gl_PointCoord; + diff --git a/mesalib/src/mesa/shader/slang/library/slang_builtin_120_fragment_gc.h b/mesalib/src/mesa/shader/slang/library/slang_builtin_120_fragment_gc.h new file mode 100644 index 000000000..add3b5aea --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_builtin_120_fragment_gc.h @@ -0,0 +1,5 @@ + +/* DO NOT EDIT - THIS FILE IS AUTOMATICALLY GENERATED FROM THE FOLLOWING FILE: */ +/* slang_builtin_120_fragment.gc */ + +5,2,2,90,95,3,0,10,0,1,103,108,95,80,111,105,110,116,67,111,111,114,100,0,0,0,0 diff --git a/mesalib/src/mesa/shader/slang/library/slang_common_builtin.gc b/mesalib/src/mesa/shader/slang/library/slang_common_builtin.gc new file mode 100644 index 000000000..9764fc25b --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_common_builtin.gc @@ -0,0 +1,1873 @@ +/* + * Mesa 3-D graphics library + * Version: 7.3 + * + * Copyright (C) 2006 Brian Paul All Rights Reserved. + * Copyright (C) 2008 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +// +// From Shader Spec, ver. 1.10, rev. 59 +// + +// Note: the values assigned to these constants here aren't actually used. +// They're set by the compiler according to the GL context limits. +// See slang_simplify.c +const int gl_MaxLights = 8; +const int gl_MaxClipPlanes = 6; +const int gl_MaxTextureUnits = 8; +const int gl_MaxTextureCoords = 8; +const int gl_MaxVertexAttribs = 16; +const int gl_MaxVertexUniformComponents = 512; +const int gl_MaxVaryingFloats = 32; +const int gl_MaxVertexTextureImageUnits = 0; +const int gl_MaxCombinedTextureImageUnits = 2; +const int gl_MaxTextureImageUnits = 2; +const int gl_MaxFragmentUniformComponents = 64; +const int gl_MaxDrawBuffers = 1; + +uniform mat4 gl_ModelViewMatrix; +uniform mat4 gl_ProjectionMatrix; +uniform mat4 gl_ModelViewProjectionMatrix; +uniform mat4 gl_TextureMatrix[gl_MaxTextureCoords]; + +uniform mat3 gl_NormalMatrix; + +uniform mat4 gl_ModelViewMatrixInverse; +uniform mat4 gl_ProjectionMatrixInverse; +uniform mat4 gl_ModelViewProjectionMatrixInverse; +uniform mat4 gl_TextureMatrixInverse[gl_MaxTextureCoords]; + +uniform mat4 gl_ModelViewMatrixTranspose; +uniform mat4 gl_ProjectionMatrixTranspose; +uniform mat4 gl_ModelViewProjectionMatrixTranspose; +uniform mat4 gl_TextureMatrixTranspose[gl_MaxTextureCoords]; + +uniform mat4 gl_ModelViewMatrixInverseTranspose; +uniform mat4 gl_ProjectionMatrixInverseTranspose; +uniform mat4 gl_ModelViewProjectionMatrixInverseTranspose; +uniform mat4 gl_TextureMatrixInverseTranspose[gl_MaxTextureCoords]; + +uniform float gl_NormalScale; + +struct gl_DepthRangeParameters { + float near; + float far; + float diff; +}; + +uniform gl_DepthRangeParameters gl_DepthRange; + +uniform vec4 gl_ClipPlane[gl_MaxClipPlanes]; + +struct gl_PointParameters { + float size; + float sizeMin; + float sizeMax; + float fadeThresholdSize; + float distanceConstantAttenuation; + float distanceLinearAttenuation; + float distanceQuadraticAttenuation; +}; + +uniform gl_PointParameters gl_Point; + +struct gl_MaterialParameters { + vec4 emission; + vec4 ambient; + vec4 diffuse; + vec4 specular; + float shininess; +}; + +uniform gl_MaterialParameters gl_FrontMaterial; +uniform gl_MaterialParameters gl_BackMaterial; + +/* NOTE: the order of these fields is significant! + * See the definition of the lighting state vars such as STATE_SPOT_DIRECTION. + */ +struct gl_LightSourceParameters { + vec4 ambient; + vec4 diffuse; + vec4 specular; + vec4 position; + vec4 halfVector; + vec3 spotDirection; + float spotCosCutoff; + + float constantAttenuation; + float linearAttenuation; + float quadraticAttenuation; + float spotExponent; + + float spotCutoff; +}; + +uniform gl_LightSourceParameters gl_LightSource[gl_MaxLights]; + +struct gl_LightModelParameters { + vec4 ambient; +}; + +uniform gl_LightModelParameters gl_LightModel; + +struct gl_LightModelProducts { + vec4 sceneColor; +}; + +uniform gl_LightModelProducts gl_FrontLightModelProduct; +uniform gl_LightModelProducts gl_BackLightModelProduct; + +struct gl_LightProducts { + vec4 ambient; + vec4 diffuse; + vec4 specular; +}; + +uniform gl_LightProducts gl_FrontLightProduct[gl_MaxLights]; +uniform gl_LightProducts gl_BackLightProduct[gl_MaxLights]; + +uniform vec4 gl_TextureEnvColor[gl_MaxTextureImageUnits]; +uniform vec4 gl_EyePlaneS[gl_MaxTextureCoords]; +uniform vec4 gl_EyePlaneT[gl_MaxTextureCoords]; +uniform vec4 gl_EyePlaneR[gl_MaxTextureCoords]; +uniform vec4 gl_EyePlaneQ[gl_MaxTextureCoords]; +uniform vec4 gl_ObjectPlaneS[gl_MaxTextureCoords]; +uniform vec4 gl_ObjectPlaneT[gl_MaxTextureCoords]; +uniform vec4 gl_ObjectPlaneR[gl_MaxTextureCoords]; +uniform vec4 gl_ObjectPlaneQ[gl_MaxTextureCoords]; + +struct gl_FogParameters { + vec4 color; + float density; + float start; + float end; + float scale; +}; + +uniform gl_FogParameters gl_Fog; + + + + + +// +// 8.1 Angle and Trigonometry Functions +// + +//// radians + +float radians(const float deg) +{ + const float c = 3.1415926 / 180.0; + __asm vec4_multiply __retVal, deg, c; +} + +vec2 radians(const vec2 deg) +{ + const float c = 3.1415926 / 180.0; + __asm vec4_multiply __retVal.xy, deg.xy, c.xx; +} + +vec3 radians(const vec3 deg) +{ + const float c = 3.1415926 / 180.0; + __asm vec4_multiply __retVal.xyz, deg.xyz, c.xxx; +} + +vec4 radians(const vec4 deg) +{ + const float c = 3.1415926 / 180.0; + __asm vec4_multiply __retVal, deg, c.xxxx; +} + + +//// degrees + +float degrees(const float rad) +{ + const float c = 180.0 / 3.1415926; + __asm vec4_multiply __retVal, rad, c; +} + +vec2 degrees(const vec2 rad) +{ + const float c = 180.0 / 3.1415926; + __asm vec4_multiply __retVal.xy, rad.xy, c.xx; +} + +vec3 degrees(const vec3 rad) +{ + const float c = 180.0 / 3.1415926; + __asm vec4_multiply __retVal.xyz, rad.xyz, c.xxx; +} + +vec4 degrees(const vec4 rad) +{ + const float c = 180.0 / 3.1415926; + __asm vec4_multiply __retVal, rad, c.xxxx; +} + + +//// sin + +float sin(const float radians) +{ + __asm float_sine __retVal, radians; +} + +vec2 sin(const vec2 radians) +{ + __asm float_sine __retVal.x, radians.x; + __asm float_sine __retVal.y, radians.y; +} + +vec3 sin(const vec3 radians) +{ + __asm float_sine __retVal.x, radians.x; + __asm float_sine __retVal.y, radians.y; + __asm float_sine __retVal.z, radians.z; +} + +vec4 sin(const vec4 radians) +{ + __asm float_sine __retVal.x, radians.x; + __asm float_sine __retVal.y, radians.y; + __asm float_sine __retVal.z, radians.z; + __asm float_sine __retVal.w, radians.w; +} + + +//// cos + +float cos(const float radians) +{ + __asm float_cosine __retVal, radians; +} + +vec2 cos(const vec2 radians) +{ + __asm float_cosine __retVal.x, radians.x; + __asm float_cosine __retVal.y, radians.y; +} + +vec3 cos(const vec3 radians) +{ + __asm float_cosine __retVal.x, radians.x; + __asm float_cosine __retVal.y, radians.y; + __asm float_cosine __retVal.z, radians.z; +} + +vec4 cos(const vec4 radians) +{ + __asm float_cosine __retVal.x, radians.x; + __asm float_cosine __retVal.y, radians.y; + __asm float_cosine __retVal.z, radians.z; + __asm float_cosine __retVal.w, radians.w; +} + + + +//// tan + +float tan(const float angle) +{ + const float s = sin(angle); + const float c = cos(angle); + return s / c; +} + +vec2 tan(const vec2 angle) +{ + const vec2 s = sin(angle); + const vec2 c = cos(angle); + return s / c; +} + +vec3 tan(const vec3 angle) +{ + const vec3 s = sin(angle); + const vec3 c = cos(angle); + return s / c; +} + +vec4 tan(const vec4 angle) +{ + const vec4 s = sin(angle); + const vec4 c = cos(angle); + return s / c; +} + + + +float asin(const float x) +{ + const float a0 = 1.5707288; // PI/2? + const float a1 = -0.2121144; + const float a2 = 0.0742610; + //const float a3 = -0.0187293; + const float halfPi = 3.1415926 * 0.5; + const float y = abs(x); + // three terms seem to be enough: + __retVal = (halfPi - sqrt(1.0 - y) * (a0 + y * (a1 + a2 * y))) * sign(x); + // otherwise, try four: + //__retVal = (halfPi - sqrt(1.0 - y) * (a0 + y * (a1 + y * (a2 + y * a3)))) * sign(x); +} + +vec2 asin(const vec2 v) +{ + __retVal.x = asin(v.x); + __retVal.y = asin(v.y); +} + +vec3 asin(const vec3 v) +{ + __retVal.x = asin(v.x); + __retVal.y = asin(v.y); + __retVal.z = asin(v.z); +} + +vec4 asin(const vec4 v) +{ + __retVal.x = asin(v.x); + __retVal.y = asin(v.y); + __retVal.z = asin(v.z); + __retVal.w = asin(v.w); +} + +float acos(const float x) +{ + const float halfPi = 3.1415926 * 0.5; + __retVal = halfPi - asin(x); +} + +vec2 acos(const vec2 v) +{ + __retVal.x = acos(v.x); + __retVal.y = acos(v.y); +} + +vec3 acos(const vec3 v) +{ + __retVal.x = acos(v.x); + __retVal.y = acos(v.y); + __retVal.z = acos(v.z); +} + +vec4 acos(const vec4 v) +{ + __retVal.x = acos(v.x); + __retVal.y = acos(v.y); + __retVal.z = acos(v.z); + __retVal.w = acos(v.w); +} + +float atan(const float x) +{ + __retVal = asin(x * inversesqrt(x * x + 1.0)); +} + +vec2 atan(const vec2 y_over_x) +{ + __retVal.x = atan(y_over_x.x); + __retVal.y = atan(y_over_x.y); +} + +vec3 atan(const vec3 y_over_x) +{ + __retVal.x = atan(y_over_x.x); + __retVal.y = atan(y_over_x.y); + __retVal.z = atan(y_over_x.z); +} + +vec4 atan(const vec4 y_over_x) +{ + __retVal.x = atan(y_over_x.x); + __retVal.y = atan(y_over_x.y); + __retVal.z = atan(y_over_x.z); + __retVal.w = atan(y_over_x.w); +} + +float atan(const float y, const float x) +{ + float r; + if (abs(x) > 1.0e-4) { + r = atan(y / x); + if (x < 0.0) { + r = r + sign(y) * 3.141593; + } + } + else { + r = sign(y) * 1.5707965; // pi/2 + } + return r; +} + +vec2 atan(const vec2 u, const vec2 v) +{ + __retVal.x = atan(u.x, v.x); + __retVal.y = atan(u.y, v.y); +} + +vec3 atan(const vec3 u, const vec3 v) +{ + __retVal.x = atan(u.x, v.x); + __retVal.y = atan(u.y, v.y); + __retVal.z = atan(u.z, v.z); +} + +vec4 atan(const vec4 u, const vec4 v) +{ + __retVal.x = atan(u.x, v.x); + __retVal.y = atan(u.y, v.y); + __retVal.z = atan(u.z, v.z); + __retVal.w = atan(u.w, v.w); +} + + +// +// 8.2 Exponential Functions +// + +//// pow + +float pow(const float a, const float b) +{ + __asm float_power __retVal, a, b; +} + +vec2 pow(const vec2 a, const vec2 b) +{ + __asm float_power __retVal.x, a.x, b.x; + __asm float_power __retVal.y, a.y, b.y; +} + +vec3 pow(const vec3 a, const vec3 b) +{ + __asm float_power __retVal.x, a.x, b.x; + __asm float_power __retVal.y, a.y, b.y; + __asm float_power __retVal.z, a.z, b.z; +} + +vec4 pow(const vec4 a, const vec4 b) +{ + __asm float_power __retVal.x, a.x, b.x; + __asm float_power __retVal.y, a.y, b.y; + __asm float_power __retVal.z, a.z, b.z; + __asm float_power __retVal.w, a.w, b.w; +} + + +//// exp + +float exp(const float a) +{ + // NOTE: log2(e) = 1.44269502 + float t = a * 1.44269502; + __asm float_exp2 __retVal, t; +} + +vec2 exp(const vec2 a) +{ + vec2 t = a * 1.44269502; + __asm float_exp2 __retVal.x, t.x; + __asm float_exp2 __retVal.y, t.y; +} + +vec3 exp(const vec3 a) +{ + vec3 t = a * 1.44269502; + __asm float_exp2 __retVal.x, t.x; + __asm float_exp2 __retVal.y, t.y; + __asm float_exp2 __retVal.z, t.z; +} + +vec4 exp(const vec4 a) +{ + vec4 t = a * 1.44269502; + __asm float_exp2 __retVal.x, t.x; + __asm float_exp2 __retVal.y, t.y; + __asm float_exp2 __retVal.z, t.z; + __asm float_exp2 __retVal.w, t.w; +} + + + +//// log2 + +float log2(const float x) +{ + __asm float_log2 __retVal, x; +} + +vec2 log2(const vec2 v) +{ + __asm float_log2 __retVal.x, v.x; + __asm float_log2 __retVal.y, v.y; +} + +vec3 log2(const vec3 v) +{ + __asm float_log2 __retVal.x, v.x; + __asm float_log2 __retVal.y, v.y; + __asm float_log2 __retVal.z, v.z; +} + +vec4 log2(const vec4 v) +{ + __asm float_log2 __retVal.x, v.x; + __asm float_log2 __retVal.y, v.y; + __asm float_log2 __retVal.z, v.z; + __asm float_log2 __retVal.w, v.w; +} + + +//// log (natural log) + +float log(const float x) +{ + // note: logBaseB(x) = logBaseN(x) / logBaseN(B) + // compute log(x) = log2(x) / log2(e) + // c = 1.0 / log2(e) = 0.693147181 + const float c = 0.693147181; + return log2(x) * c; +} + +vec2 log(const vec2 v) +{ + const float c = 0.693147181; + return log2(v) * c; +} + +vec3 log(const vec3 v) +{ + const float c = 0.693147181; + return log2(v) * c; +} + +vec4 log(const vec4 v) +{ + const float c = 0.693147181; + return log2(v) * c; +} + + +//// exp2 + +float exp2(const float a) +{ + __asm float_exp2 __retVal, a; +} + +vec2 exp2(const vec2 a) +{ + __asm float_exp2 __retVal.x, a.x; + __asm float_exp2 __retVal.y, a.y; +} + +vec3 exp2(const vec3 a) +{ + __asm float_exp2 __retVal.x, a.x; + __asm float_exp2 __retVal.y, a.y; + __asm float_exp2 __retVal.z, a.z; +} + +vec4 exp2(const vec4 a) +{ + __asm float_exp2 __retVal.x, a.x; + __asm float_exp2 __retVal.y, a.y; + __asm float_exp2 __retVal.z, a.z; + __asm float_exp2 __retVal.w, a.w; +} + + +//// sqrt + +float sqrt(const float x) +{ + float r; + __asm float_rsq r, x; + __asm float_rcp __retVal, r; +} + +vec2 sqrt(const vec2 v) +{ + float r; + __asm float_rsq r, v.x; + __asm float_rcp __retVal.x, r; + __asm float_rsq r, v.y; + __asm float_rcp __retVal.y, r; +} + +vec3 sqrt(const vec3 v) +{ + float r; + __asm float_rsq r, v.x; + __asm float_rcp __retVal.x, r; + __asm float_rsq r, v.y; + __asm float_rcp __retVal.y, r; + __asm float_rsq r, v.z; + __asm float_rcp __retVal.z, r; +} + +vec4 sqrt(const vec4 v) +{ + float r; + __asm float_rsq r, v.x; + __asm float_rcp __retVal.x, r; + __asm float_rsq r, v.y; + __asm float_rcp __retVal.y, r; + __asm float_rsq r, v.z; + __asm float_rcp __retVal.z, r; + __asm float_rsq r, v.w; + __asm float_rcp __retVal.w, r; +} + + +//// inversesqrt + +float inversesqrt(const float x) +{ + __asm float_rsq __retVal.x, x; +} + +vec2 inversesqrt(const vec2 v) +{ + __asm float_rsq __retVal.x, v.x; + __asm float_rsq __retVal.y, v.y; +} + +vec3 inversesqrt(const vec3 v) +{ + __asm float_rsq __retVal.x, v.x; + __asm float_rsq __retVal.y, v.y; + __asm float_rsq __retVal.z, v.z; +} + +vec4 inversesqrt(const vec4 v) +{ + __asm float_rsq __retVal.x, v.x; + __asm float_rsq __retVal.y, v.y; + __asm float_rsq __retVal.z, v.z; + __asm float_rsq __retVal.w, v.w; +} + + +//// normalize + +float normalize(const float x) +{ + __retVal = 1.0; +} + +vec2 normalize(const vec2 v) +{ + const float s = inversesqrt(dot(v, v)); + __asm vec4_multiply __retVal.xy, v, s; +} + +vec3 normalize(const vec3 v) +{ +// const float s = inversesqrt(dot(v, v)); +// __retVal = v * s; +// XXX note, we _could_ use __retVal.w instead of tmp and and save a +// register, but that's actually a compilation error because v is a vec3 +// and the .w suffix is illegal. Oh well. + float tmp; + __asm vec3_dot tmp, v, v; + __asm float_rsq tmp, tmp; + __asm vec4_multiply __retVal.xyz, v, tmp; +} + +vec4 normalize(const vec4 v) +{ + float tmp; + __asm vec4_dot tmp, v, v; + __asm float_rsq tmp, tmp; + __asm vec4_multiply __retVal.xyz, v, tmp; +} + + + +// +// 8.3 Common Functions +// + + +//// abs + +float abs(const float a) +{ + __asm vec4_abs __retVal, a; +} + +vec2 abs(const vec2 a) +{ + __asm vec4_abs __retVal.xy, a; +} + +vec3 abs(const vec3 a) +{ + __asm vec4_abs __retVal.xyz, a; +} + +vec4 abs(const vec4 a) +{ + __asm vec4_abs __retVal, a; +} + + +//// sign + +float sign(const float x) +{ + float p, n; + __asm vec4_sgt p, x, 0.0; // p = (x > 0) + __asm vec4_sgt n, 0.0, x; // n = (x < 0) + __asm vec4_subtract __retVal, p, n; // sign = p - n +} + +vec2 sign(const vec2 v) +{ + vec2 p, n; + __asm vec4_sgt p.xy, v, 0.0; + __asm vec4_sgt n.xy, 0.0, v; + __asm vec4_subtract __retVal.xy, p, n; +} + +vec3 sign(const vec3 v) +{ + vec3 p, n; + __asm vec4_sgt p.xyz, v, 0.0; + __asm vec4_sgt n.xyz, 0.0, v; + __asm vec4_subtract __retVal.xyz, p, n; +} + +vec4 sign(const vec4 v) +{ + vec4 p, n; + __asm vec4_sgt p, v, 0.0; + __asm vec4_sgt n, 0.0, v; + __asm vec4_subtract __retVal, p, n; +} + + +//// floor + +float floor(const float a) +{ + __asm vec4_floor __retVal, a; +} + +vec2 floor(const vec2 a) +{ + __asm vec4_floor __retVal.xy, a; +} + +vec3 floor(const vec3 a) +{ + __asm vec4_floor __retVal.xyz, a; +} + +vec4 floor(const vec4 a) +{ + __asm vec4_floor __retVal, a; +} + + +//// ceil + +float ceil(const float a) +{ + // XXX this could be improved + float b = -a; + __asm vec4_floor b, b; + __retVal = -b; +} + +vec2 ceil(const vec2 a) +{ + vec2 b = -a; + __asm vec4_floor b, b; + __retVal.xy = -b; +} + +vec3 ceil(const vec3 a) +{ + vec3 b = -a; + __asm vec4_floor b, b; + __retVal.xyz = -b; +} + +vec4 ceil(const vec4 a) +{ + vec4 b = -a; + __asm vec4_floor b, b; + __retVal = -b; +} + + +//// fract + +float fract(const float a) +{ + __asm vec4_frac __retVal, a; +} + +vec2 fract(const vec2 a) +{ + __asm vec4_frac __retVal.xy, a; +} + +vec3 fract(const vec3 a) +{ + __asm vec4_frac __retVal.xyz, a; +} + +vec4 fract(const vec4 a) +{ + __asm vec4_frac __retVal, a; +} + + +//// mod (very untested!) + +float mod(const float a, const float b) +{ + float oneOverB; + __asm float_rcp oneOverB, b; + __retVal = a - b * floor(a * oneOverB); +} + +vec2 mod(const vec2 a, const float b) +{ + float oneOverB; + __asm float_rcp oneOverB, b; + __retVal.xy = a - b * floor(a * oneOverB); +} + +vec3 mod(const vec3 a, const float b) +{ + float oneOverB; + __asm float_rcp oneOverB, b; + __retVal.xyz = a - b * floor(a * oneOverB); +} + +vec4 mod(const vec4 a, const float b) +{ + float oneOverB; + __asm float_rcp oneOverB, b; + __retVal = a - b * floor(a * oneOverB); +} + +vec2 mod(const vec2 a, const vec2 b) +{ + vec2 oneOverB; + __asm float_rcp oneOverB.x, b.x; + __asm float_rcp oneOverB.y, b.y; + __retVal = a - b * floor(a * oneOverB); +} + +vec3 mod(const vec3 a, const vec3 b) +{ + vec3 oneOverB; + __asm float_rcp oneOverB.x, b.x; + __asm float_rcp oneOverB.y, b.y; + __asm float_rcp oneOverB.z, b.z; + __retVal = a - b * floor(a * oneOverB); +} + +vec4 mod(const vec4 a, const vec4 b) +{ + vec4 oneOverB; + __asm float_rcp oneOverB.x, b.x; + __asm float_rcp oneOverB.y, b.y; + __asm float_rcp oneOverB.z, b.z; + __asm float_rcp oneOverB.w, b.w; + __retVal = a - b * floor(a * oneOverB); +} + + +//// min + +float min(const float a, const float b) +{ + __asm vec4_min __retVal, a, b; +} + +vec2 min(const vec2 a, const vec2 b) +{ + __asm vec4_min __retVal.xy, a.xy, b.xy; +} + +vec3 min(const vec3 a, const vec3 b) +{ + __asm vec4_min __retVal.xyz, a.xyz, b.xyz; +} + +vec4 min(const vec4 a, const vec4 b) +{ + __asm vec4_min __retVal, a, b; +} + +vec2 min(const vec2 a, const float b) +{ + __asm vec4_min __retVal, a.xy, b; +} + +vec3 min(const vec3 a, const float b) +{ + __asm vec4_min __retVal, a.xyz, b; +} + +vec4 min(const vec4 a, const float b) +{ + __asm vec4_min __retVal, a, b; +} + + +//// max + +float max(const float a, const float b) +{ + __asm vec4_max __retVal, a, b; +} + +vec2 max(const vec2 a, const vec2 b) +{ + __asm vec4_max __retVal.xy, a.xy, b.xy; +} + +vec3 max(const vec3 a, const vec3 b) +{ + __asm vec4_max __retVal.xyz, a.xyz, b.xyz; +} + +vec4 max(const vec4 a, const vec4 b) +{ + __asm vec4_max __retVal, a, b; +} + +vec2 max(const vec2 a, const float b) +{ + __asm vec4_max __retVal, a.xy, b; +} + +vec3 max(const vec3 a, const float b) +{ + __asm vec4_max __retVal, a.xyz, b; +} + +vec4 max(const vec4 a, const float b) +{ + __asm vec4_max __retVal, a, b; +} + + +//// clamp + +float clamp(const float val, const float minVal, const float maxVal) +{ + __asm vec4_clamp __retVal, val, minVal, maxVal; +} + +vec2 clamp(const vec2 val, const float minVal, const float maxVal) +{ + __asm vec4_clamp __retVal, val, minVal, maxVal; +} + +vec3 clamp(const vec3 val, const float minVal, const float maxVal) +{ + __asm vec4_clamp __retVal, val, minVal, maxVal; +} + +vec4 clamp(const vec4 val, const float minVal, const float maxVal) +{ + __asm vec4_clamp __retVal, val, minVal, maxVal; +} + +vec2 clamp(const vec2 val, const vec2 minVal, const vec2 maxVal) +{ + __asm vec4_clamp __retVal, val, minVal, maxVal; +} + +vec3 clamp(const vec3 val, const vec3 minVal, const vec3 maxVal) +{ + __asm vec4_clamp __retVal, val, minVal, maxVal; +} + +vec4 clamp(const vec4 val, const vec4 minVal, const vec4 maxVal) +{ + __asm vec4_clamp __retVal, val, minVal, maxVal; +} + + +//// mix + +float mix(const float x, const float y, const float a) +{ + __asm vec4_lrp __retVal, a, y, x; +} + +vec2 mix(const vec2 x, const vec2 y, const float a) +{ + __asm vec4_lrp __retVal, a, y, x; +} + +vec3 mix(const vec3 x, const vec3 y, const float a) +{ + __asm vec4_lrp __retVal, a, y, x; +} + +vec4 mix(const vec4 x, const vec4 y, const float a) +{ + __asm vec4_lrp __retVal, a, y, x; +} + +vec2 mix(const vec2 x, const vec2 y, const vec2 a) +{ + __asm vec4_lrp __retVal, a, y, x; +} + +vec3 mix(const vec3 x, const vec3 y, const vec3 a) +{ + __asm vec4_lrp __retVal, a, y, x; +} + +vec4 mix(const vec4 x, const vec4 y, const vec4 a) +{ + __asm vec4_lrp __retVal, a, y, x; +} + + +//// step + +float step(const float edge, const float x) +{ + __asm vec4_sge __retVal, x, edge; +} + +vec2 step(const vec2 edge, const vec2 x) +{ + __asm vec4_sge __retVal.xy, x, edge; +} + +vec3 step(const vec3 edge, const vec3 x) +{ + __asm vec4_sge __retVal.xyz, x, edge; +} + +vec4 step(const vec4 edge, const vec4 x) +{ + __asm vec4_sge __retVal, x, edge; +} + +vec2 step(const float edge, const vec2 v) +{ + __asm vec4_sge __retVal.xy, v, edge; +} + +vec3 step(const float edge, const vec3 v) +{ + __asm vec4_sge __retVal.xyz, v, edge; +} + +vec4 step(const float edge, const vec4 v) +{ + __asm vec4_sge __retVal, v, edge; +} + + +//// smoothstep + +float smoothstep(const float edge0, const float edge1, const float x) +{ + float t = clamp((x - edge0) / (edge1 - edge0), 0.0, 1.0); + return t * t * (3.0 - 2.0 * t); +} + +vec2 smoothstep(const vec2 edge0, const vec2 edge1, const vec2 v) +{ + vec2 t = clamp((v - edge0) / (edge1 - edge0), 0.0, 1.0); + return t * t * (3.0 - 2.0 * t); +} + +vec3 smoothstep(const vec3 edge0, const vec3 edge1, const vec3 v) +{ + vec3 t = clamp((v - edge0) / (edge1 - edge0), 0.0, 1.0); + return t * t * (3.0 - 2.0 * t); +} + +vec4 smoothstep(const vec4 edge0, const vec4 edge1, const vec4 v) +{ + vec4 t = clamp((v - edge0) / (edge1 - edge0), 0.0, 1.0); + return t * t * (3.0 - 2.0 * t); +} + +vec2 smoothstep(const float edge0, const float edge1, const vec2 v) +{ + vec2 t = clamp((v - edge0) / (edge1 - edge0), 0.0, 1.0); + return t * t * (3.0 - 2.0 * t); +} + +vec3 smoothstep(const float edge0, const float edge1, const vec3 v) +{ + vec3 t = clamp((v - edge0) / (edge1 - edge0), 0.0, 1.0); + return t * t * (3.0 - 2.0 * t); +} + +vec4 smoothstep(const float edge0, const float edge1, const vec4 v) +{ + vec4 t = clamp((v - edge0) / (edge1 - edge0), 0.0, 1.0); + return t * t * (3.0 - 2.0 * t); +} + + + +// +// 8.4 Geometric Functions +// + + +//// length + +float length(const float x) +{ + return abs(x); +} + +float length(const vec2 v) +{ + float r; + const float p = dot(v, v); // p = v.x * v.x + v.y * v.y + __asm float_rsq r, p; // r = 1 / sqrt(p) + __asm float_rcp __retVal.x, r; // retVal = 1 / r +} + +float length(const vec3 v) +{ + float r; + const float p = dot(v, v); // p = v.x * v.x + v.y * v.y + v.z * v.z + __asm float_rsq r, p; // r = 1 / sqrt(p) + __asm float_rcp __retVal, r; // retVal = 1 / r +} + +float length(const vec4 v) +{ + float r; + const float p = dot(v, v); // p = v.x * v.x + v.y * v.y + ... + __asm float_rsq r, p; // r = 1 / sqrt(p) + __asm float_rcp __retVal, r; // retVal = 1 / r +} + + +//// distance + +float distance(const float x, const float y) +{ + const float d = x - y; + __retVal = length(d); +} + +float distance(const vec2 v, const vec2 u) +{ + const vec2 d2 = v - u; + __retVal = length(d2); +} + +float distance(const vec3 v, const vec3 u) +{ + const vec3 d3 = v - u; + __retVal = length(d3); +} + +float distance(const vec4 v, const vec4 u) +{ + const vec4 d4 = v - u; + __retVal = length(d4); +} + + +//// cross + +vec3 cross(const vec3 v, const vec3 u) +{ + __asm vec3_cross __retVal.xyz, v, u; +} + + +//// faceforward + +float faceforward(const float N, const float I, const float Nref) +{ + // this could probably be done better + const float d = dot(Nref, I); + float s; + __asm vec4_sgt s, 0.0, d; // s = (0.0 > d) ? 1 : 0 + return mix(-N, N, s); +} + +vec2 faceforward(const vec2 N, const vec2 I, const vec2 Nref) +{ + // this could probably be done better + const float d = dot(Nref, I); + float s; + __asm vec4_sgt s, 0.0, d; // s = (0.0 > d) ? 1 : 0 + return mix(-N, N, s); +} + +vec3 faceforward(const vec3 N, const vec3 I, const vec3 Nref) +{ + // this could probably be done better + const float d = dot(Nref, I); + float s; + __asm vec4_sgt s, 0.0, d; // s = (0.0 > d) ? 1 : 0 + return mix(-N, N, s); +} + +vec4 faceforward(const vec4 N, const vec4 I, const vec4 Nref) +{ + // this could probably be done better + const float d = dot(Nref, I); + float s; + __asm vec4_sgt s, 0.0, d; // s = (0.0 > d) ? 1 : 0 + return mix(-N, N, s); +} + + +//// reflect + +float reflect(const float I, const float N) +{ + return I - 2.0 * dot(N, I) * N; +} + +vec2 reflect(const vec2 I, const vec2 N) +{ + return I - 2.0 * dot(N, I) * N; +} + +vec3 reflect(const vec3 I, const vec3 N) +{ + return I - 2.0 * dot(N, I) * N; +} + +vec4 reflect(const vec4 I, const vec4 N) +{ + return I - 2.0 * dot(N, I) * N; +} + +//// refract + +float refract(const float I, const float N, const float eta) +{ + float n_dot_i = dot(N, I); + float k = 1.0 - eta * eta * (1.0 - n_dot_i * n_dot_i); + float retval; + if (k < 0.0) + retval = 0.0; + else + retval = eta * I - (eta * n_dot_i + sqrt(k)) * N; + return retval; +} + +vec2 refract(const vec2 I, const vec2 N, const float eta) +{ + float n_dot_i = dot(N, I); + float k = 1.0 - eta * eta * (1.0 - n_dot_i * n_dot_i); + vec2 retval; + if (k < 0.0) + retval = vec2(0.0); + else + retval = eta * I - (eta * n_dot_i + sqrt(k)) * N; + return retval; +} + +vec3 refract(const vec3 I, const vec3 N, const float eta) +{ + float n_dot_i = dot(N, I); + float k = 1.0 - eta * eta * (1.0 - n_dot_i * n_dot_i); + vec3 retval; + if (k < 0.0) + retval = vec3(0.0); + else + retval = eta * I - (eta * n_dot_i + sqrt(k)) * N; + return retval; +} + +vec4 refract(const vec4 I, const vec4 N, const float eta) +{ + float n_dot_i = dot(N, I); + float k = 1.0 - eta * eta * (1.0 - n_dot_i * n_dot_i); + vec4 retval; + if (k < 0.0) + retval = vec4(0.0); + else + retval = eta * I - (eta * n_dot_i + sqrt(k)) * N; + return retval; +} + + + + +// +// 8.5 Matrix Functions +// + +mat2 matrixCompMult (mat2 m, mat2 n) { + return mat2 (m[0] * n[0], m[1] * n[1]); +} + +mat3 matrixCompMult (mat3 m, mat3 n) { + return mat3 (m[0] * n[0], m[1] * n[1], m[2] * n[2]); +} + +mat4 matrixCompMult (mat4 m, mat4 n) { + return mat4 (m[0] * n[0], m[1] * n[1], m[2] * n[2], m[3] * n[3]); +} + + + + +// +// 8.6 Vector Relational Functions +// + +//// lessThan + +bvec2 lessThan(const vec2 u, const vec2 v) +{ + __asm vec4_slt __retVal.xy, u, v; +} + +bvec3 lessThan(const vec3 u, const vec3 v) +{ + __asm vec4_slt __retVal.xyz, u, v; +} + +bvec4 lessThan(const vec4 u, const vec4 v) +{ + __asm vec4_slt __retVal, u, v; +} + +bvec2 lessThan(const ivec2 u, const ivec2 v) +{ + __asm vec4_slt __retVal.xy, u, v; +} + +bvec3 lessThan(const ivec3 u, const ivec3 v) +{ + __asm vec4_slt __retVal.xyz, u, v; +} + +bvec4 lessThan(const ivec4 u, const ivec4 v) +{ + __asm vec4_slt __retVal, u, v; +} + + +//// lessThanEqual + +bvec2 lessThanEqual(const vec2 u, const vec2 v) +{ + __asm vec4_sle __retVal.xy, u, v; +} + +bvec3 lessThanEqual(const vec3 u, const vec3 v) +{ + __asm vec4_sle __retVal.xyz, u, v; +} + +bvec4 lessThanEqual(const vec4 u, const vec4 v) +{ + __asm vec4_sle __retVal, u, v; +} + +bvec2 lessThanEqual(const ivec2 u, const ivec2 v) +{ + __asm vec4_sle __retVal.xy, u, v; +} + +bvec3 lessThanEqual(const ivec3 u, const ivec3 v) +{ + __asm vec4_sle __retVal.xyz, u, v; +} + +bvec4 lessThanEqual(const ivec4 u, const ivec4 v) +{ + __asm vec4_sle __retVal, u, v; +} + + +//// greaterThan + +bvec2 greaterThan(const vec2 u, const vec2 v) +{ + __asm vec4_sgt __retVal.xy, u, v; +} + +bvec3 greaterThan(const vec3 u, const vec3 v) +{ + __asm vec4_sgt __retVal.xyz, u, v; +} + +bvec4 greaterThan(const vec4 u, const vec4 v) +{ + __asm vec4_sgt __retVal, u, v; +} + +bvec2 greaterThan(const ivec2 u, const ivec2 v) +{ + __asm vec4_sgt __retVal.xy, u.xy, v.xy; +} + +bvec3 greaterThan(const ivec3 u, const ivec3 v) +{ + __asm vec4_sgt __retVal.xyz, u, v; +} + +bvec4 greaterThan(const ivec4 u, const ivec4 v) +{ + __asm vec4_sgt __retVal, u, v; +} + + +//// greaterThanEqual + +bvec2 greaterThanEqual(const vec2 u, const vec2 v) +{ + __asm vec4_sge __retVal.xy, u, v; +} + +bvec3 greaterThanEqual(const vec3 u, const vec3 v) +{ + __asm vec4_sge __retVal.xyz, u, v; +} + +bvec4 greaterThanEqual(const vec4 u, const vec4 v) +{ + __asm vec4_sge __retVal, u, v; +} + +bvec2 greaterThanEqual(const ivec2 u, const ivec2 v) +{ + __asm vec4_sge __retVal.xy, u, v; +} + +bvec3 greaterThanEqual(const ivec3 u, const ivec3 v) +{ + __asm vec4_sge __retVal.xyz, u, v; +} + +bvec4 greaterThanEqual(const ivec4 u, const ivec4 v) +{ + __asm vec4_sge __retVal, u, v; +} + + +//// equal + +bvec2 equal(const vec2 u, const vec2 v) +{ + __asm vec4_seq __retVal.xy, u, v; +} + +bvec3 equal(const vec3 u, const vec3 v) +{ + __asm vec4_seq __retVal.xyz, u, v; +} + +bvec4 equal(const vec4 u, const vec4 v) +{ + __asm vec4_seq __retVal, u, v; +} + +bvec2 equal(const ivec2 u, const ivec2 v) +{ + __asm vec4_seq __retVal.xy, u, v; +} + +bvec3 equal(const ivec3 u, const ivec3 v) +{ + __asm vec4_seq __retVal.xyz, u, v; +} + +bvec4 equal(const ivec4 u, const ivec4 v) +{ + __asm vec4_seq __retVal, u, v; +} + +bvec2 equal(const bvec2 u, const bvec2 v) +{ + __asm vec4_seq __retVal.xy, u, v; +} + +bvec3 equal(const bvec3 u, const bvec3 v) +{ + __asm vec4_seq __retVal.xyz, u, v; +} + +bvec4 equal(const bvec4 u, const bvec4 v) +{ + __asm vec4_seq __retVal, u, v; +} + + + + +//// notEqual + +bvec2 notEqual(const vec2 u, const vec2 v) +{ + __asm vec4_sne __retVal.xy, u, v; +} + +bvec3 notEqual(const vec3 u, const vec3 v) +{ + __asm vec4_sne __retVal.xyz, u, v; +} + +bvec4 notEqual(const vec4 u, const vec4 v) +{ + __asm vec4_sne __retVal, u, v; +} + +bvec2 notEqual(const ivec2 u, const ivec2 v) +{ + __asm vec4_sne __retVal.xy, u, v; +} + +bvec3 notEqual(const ivec3 u, const ivec3 v) +{ + __asm vec4_sne __retVal.xyz, u, v; +} + +bvec4 notEqual(const ivec4 u, const ivec4 v) +{ + __asm vec4_sne __retVal, u, v; +} + +bvec2 notEqual(const bvec2 u, const bvec2 v) +{ + __asm vec4_sne __retVal.xy, u, v; +} + +bvec3 notEqual(const bvec3 u, const bvec3 v) +{ + __asm vec4_sne __retVal.xyz, u, v; +} + +bvec4 notEqual(const bvec4 u, const bvec4 v) +{ + __asm vec4_sne __retVal, u, v; +} + + + +//// any + +bool any(const bvec2 v) +{ + float sum; + __asm vec4_add sum.x, v.x, v.y; + __asm vec4_sne __retVal.x, sum.x, 0.0; +} + +bool any(const bvec3 v) +{ + float sum; + __asm vec4_add sum.x, v.x, v.y; + __asm vec4_add sum.x, sum.x, v.z; + __asm vec4_sne __retVal.x, sum.x, 0.0; +} + +bool any(const bvec4 v) +{ + float sum; + __asm vec4_add sum.x, v.x, v.y; + __asm vec4_add sum.x, sum.x, v.z; + __asm vec4_add sum.x, sum.x, v.w; + __asm vec4_sne __retVal.x, sum.x, 0.0; +} + + +//// all + +bool all (const bvec2 v) +{ + float prod; + __asm vec4_multiply prod, v.x, v.y; + __asm vec4_sne __retVal, prod, 0.0; +} + +bool all (const bvec3 v) +{ + float prod; + __asm vec4_multiply prod, v.x, v.y; + __asm vec4_multiply prod, prod, v.z; + __asm vec4_sne __retVal, prod, 0.0; +} + +bool all (const bvec4 v) +{ + float prod; + __asm vec4_multiply prod, v.x, v.y; + __asm vec4_multiply prod, prod, v.z; + __asm vec4_multiply prod, prod, v.w; + __asm vec4_sne __retVal, prod, 0.0; +} + + + +//// not + +bvec2 not (const bvec2 v) +{ + __asm vec4_seq __retVal.xy, v, 0.0; +} + +bvec3 not (const bvec3 v) +{ + __asm vec4_seq __retVal.xyz, v, 0.0; +} + +bvec4 not (const bvec4 v) +{ + __asm vec4_seq __retVal, v, 0.0; +} + + + +//// Texture Lookup Functions (for both fragment and vertex shaders) + +vec4 texture1D(const sampler1D sampler, const float coord) +{ + __asm vec4_tex_1d __retVal, sampler, coord; +} + +vec4 texture1DProj(const sampler1D sampler, const vec2 coord) +{ + // need to swizzle .y into .w + __asm vec4_tex_1d_proj __retVal, sampler, coord.xyyy; +} + +vec4 texture1DProj(const sampler1D sampler, const vec4 coord) +{ + __asm vec4_tex_1d_proj __retVal, sampler, coord; +} + + +vec4 texture2D(const sampler2D sampler, const vec2 coord) +{ + __asm vec4_tex_2d __retVal, sampler, coord; +} + +vec4 texture2DProj(const sampler2D sampler, const vec3 coord) +{ + // need to swizzle 'z' into 'w'. + __asm vec4_tex_2d_proj __retVal, sampler, coord.xyzz; +} + +vec4 texture2DProj(const sampler2D sampler, const vec4 coord) +{ + __asm vec4_tex_2d_proj __retVal, sampler, coord; +} + + +vec4 texture3D(const sampler3D sampler, const vec3 coord) +{ + __asm vec4_tex_3d __retVal, sampler, coord; +} + +vec4 texture3DProj(const sampler3D sampler, const vec4 coord) +{ + __asm vec4_tex_3d_proj __retVal, sampler, coord; +} + + +vec4 textureCube(const samplerCube sampler, const vec3 coord) +{ + __asm vec4_tex_cube __retVal, sampler, coord; +} + + + +vec4 shadow1D(const sampler1DShadow sampler, const vec3 coord) +{ + __asm vec4_tex_1d_shadow __retVal, sampler, coord; +} + +vec4 shadow1DProj(const sampler1DShadow sampler, const vec4 coord) +{ + // .s and .p will be divided by .q + __asm vec4_tex_1d_proj_shadow __retVal, sampler, coord; +} + +vec4 shadow2D(const sampler2DShadow sampler, const vec3 coord) +{ + __asm vec4_tex_2d_shadow __retVal, sampler, coord; +} + +vec4 shadow2DProj(const sampler2DShadow sampler, const vec4 coord) +{ + // .s, .t and .p will be divided by .q + __asm vec4_tex_2d_proj_shadow __retVal, sampler, coord; +} + + +//// GL_ARB_texture_rectangle: +vec4 texture2DRect(const sampler2DRect sampler, const vec2 coord) +{ + __asm vec4_tex_rect __retVal, sampler, coord; +} + +vec4 texture2DRectProj(const sampler2DRect sampler, const vec3 coord) +{ + // need to swizzle .y into .w + __asm vec4_tex_rect_proj __retVal, sampler, coord.xyzz; +} + +vec4 texture2DRectProj(const sampler2DRect sampler, const vec4 coord) +{ + __asm vec4_tex_rect_proj __retVal, sampler, ccoord; +} + +vec4 shadow2DRect(const sampler2DRectShadow sampler, const vec3 coord) +{ + __asm vec4_tex_rect_shadow __retVal, sampler, coord; +} + +vec4 shadow2DRectProj(const sampler2DRectShadow sampler, const vec4 coord) +{ + __asm vec4_tex_rect_proj_shadow __retVal, sampler, coord; +} + + + +// +// 8.9 Noise Functions +// +// AUTHOR: Stefan Gustavson (stegu@itn.liu.se), Nov 26, 2005 +// + +float noise1(const float x) +{ + __asm float_noise1 __retVal, x; +} + + +float noise1(const vec2 x) +{ + __asm float_noise2 __retVal, x; +} + +float noise1(const vec3 x) +{ + __asm float_noise3 __retVal, x; +} + +float noise1(const vec4 x) +{ + __asm float_noise4 __retVal, x; +} + +vec2 noise2(const float x) +{ + __retVal.x = noise1(x); + __retVal.y = noise1(x + 19.34); +} + +vec2 noise2(const vec2 x) +{ + __retVal.x = noise1(x); + __retVal.y = noise1(x + vec2(19.34, 7.66)); +} + +vec2 noise2(const vec3 x) +{ + __retVal.x = noise1(x); + __retVal.y = noise1(x + vec3(19.34, 7.66, 3.23)); +} + +vec2 noise2(const vec4 x) +{ + __retVal.x = noise1(x); + __retVal.y = noise1(x + vec4(19.34, 7.66, 3.23, 2.77)); +} + +vec3 noise3(const float x) +{ + __retVal.x = noise1(x); + __retVal.y = noise1(x + 19.34); + __retVal.z = noise1(x + 5.47); +} + +vec3 noise3(const vec2 x) +{ + __retVal.x = noise1(x); + __retVal.y = noise1(x + vec2(19.34, 7.66)); + __retVal.z = noise1(x + vec2(5.47, 17.85)); +} + +vec3 noise3(const vec3 x) +{ + __retVal.x = noise1(x); + __retVal.y = noise1(x + vec3(19.34, 7.66, 3.23)); + __retVal.z = noise1(x + vec3(5.47, 17.85, 11.04)); +} + +vec3 noise3(const vec4 x) +{ + __retVal.x = noise1(x); + __retVal.y = noise1(x + vec4(19.34, 7.66, 3.23, 2.77)); + __retVal.z = noise1(x + vec4(5.47, 17.85, 11.04, 13.19)); +} + +vec4 noise4(const float x) +{ + __retVal.x = noise1(x); + __retVal.y = noise1(x + 19.34); + __retVal.z = noise1(x + 5.47); + __retVal.w = noise1(x + 23.54); +} + +vec4 noise4(const vec2 x) +{ + __retVal.x = noise1(x); + __retVal.y = noise1(x + vec2 (19.34, 7.66)); + __retVal.z = noise1(x + vec2 (5.47, 17.85)); + __retVal.w = noise1(x + vec2 (23.54, 29.11)); +} + +vec4 noise4(const vec3 x) +{ + __retVal.x = noise1(x); + __retVal.y = noise1(x + vec3(19.34, 7.66, 3.23)); + __retVal.z = noise1(x + vec3(5.47, 17.85, 11.04)); + __retVal.w = noise1(x + vec3(23.54, 29.11, 31.91)); +} + +vec4 noise4(const vec4 x) +{ + __retVal.x = noise1(x); + __retVal.y = noise1(x + vec4(19.34, 7.66, 3.23, 2.77)); + __retVal.z = noise1(x + vec4(5.47, 17.85, 11.04, 13.19)); + __retVal.w = noise1(x + vec4(23.54, 29.11, 31.91, 37.48)); +} diff --git a/mesalib/src/mesa/shader/slang/library/slang_common_builtin_gc.h b/mesalib/src/mesa/shader/slang/library/slang_common_builtin_gc.h new file mode 100644 index 000000000..78a7b83ec --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_common_builtin_gc.h @@ -0,0 +1,872 @@ + +/* DO NOT EDIT - THIS FILE IS AUTOMATICALLY GENERATED FROM THE FOLLOWING FILE: */ +/* slang_common_builtin.gc */ + +5,2,2,90,95,1,0,5,0,1,103,108,95,77,97,120,76,105,103,104,116,115,0,2,16,10,56,0,0,0,2,2,90,95,1,0, +5,0,1,103,108,95,77,97,120,67,108,105,112,80,108,97,110,101,115,0,2,16,10,54,0,0,0,2,2,90,95,1,0,5, +0,1,103,108,95,77,97,120,84,101,120,116,117,114,101,85,110,105,116,115,0,2,16,10,56,0,0,0,2,2,90, 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library + * Version: 6.5 + * + * Copyright (C) 2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +// +// This file defines nearly all constructors and operators for built-in data +// types, using extended language syntax. In general, compiler treats +// constructors and operators as ordinary functions with some exceptions. +// For example, the language does not allow functions to be called in +// constant expressions - here the exception is made to allow it. +// +// Each implementation provides its own version of this file. Each +// implementation can define the required set of operators and constructors +// in its own fashion. +// +// The extended language syntax is only present when compiling this file. +// It is implicitly included at the very beginning of the compiled shader, +// so no built-in functions can be used. +// +// To communicate with the implementation, a special extended "__asm" keyword +// is used, followed by an instruction name (any valid identifier), a +// destination variable identifier and a list of zero or more source +// variable identifiers. +// +// A variable identifier is a variable name declared earlier in the code +// (as a function parameter, local or global variable). +// +// An instruction name designates an instruction that must be exported +// by the implementation. Each instruction receives data from source +// variable identifiers and returns data in the destination variable +// identifier. +// +// It is up to the implementation how to define a particular operator +// or constructor. If it is expected to being used rarely, it can be +// defined in terms of other operators and constructors, +// for example: +// +// ivec2 __operator + (const ivec2 x, const ivec2 y) { +// return ivec2 (x[0] + y[0], x[1] + y[1]); +// } +// +// If a particular operator or constructor is expected to be used very +// often or is an atomic operation (that is, an operation that cannot be +// expressed in terms of other operations or would create a dependency +// cycle) it must be defined using one or more __asm constructs. +// +// Each implementation must define constructors for all scalar types +// (bool, float, int). There are 9 scalar-to-scalar constructors +// (including identity constructors). However, since the language +// introduces special constructors (like matrix constructor with a single +// scalar value), implementations must also implement these cases. +// The compiler provides the following algorithm when resolving a constructor: +// - try to find a constructor with a prototype matching ours, +// - if no constructor is found and this is a scalar-to-scalar constructor, +// raise an error, +// - if a constructor is found, execute it and return, +// - count the size of the constructor parameter list - if it is less than +// the size of our constructor's type, raise an error, +// - for each parameter in the list do a recursive constructor matching for +// appropriate scalar fields in the constructed variable, +// +// Each implementation must also define a set of operators that deal with +// built-in data types. +// There are four kinds of operators: +// 1) Operators that are implemented only by the compiler: "()" (function +// call), "," (sequence) and "?:" (selection). +// 2) Operators that are implemented by the compiler by expressing it in +// terms of other operators: +// - "." (field selection) - translated to subscript access, +// - "&&" (logical and) - translated to "<left_expr> ? <right_expr> : +// false", +// - "||" (logical or) - translated to "<left_expr> ? true : <right_expr>", +// 3) Operators that can be defined by the implementation and if the required +// prototype is not found, standard behaviour is used: +// - "==", "!=", "=" (equality, assignment) - compare or assign +// matching fields one-by-one; +// note that at least operators for scalar data types must be defined +// by the implementation to get it work, +// 4) All other operators not mentioned above. If no required prototype is +// found, an error is raised. An implementation must follow the language +// specification to provide all valid operator prototypes. +// + + + +//// Basic, scalar constructors/casts + +int __constructor(const float f) +{ + __asm vec4_to_ivec4 __retVal, f; +} + +int __constructor(const bool b) +{ + __retVal = b; +} + +int __constructor(const int i) +{ + __retVal = i; +} + +bool __constructor(const int i) +{ + __asm vec4_sne __retVal, i, 0.0; +} + +bool __constructor(const float f) +{ + __asm vec4_sne __retVal, f, 0.0; +} + +bool __constructor(const bool b) +{ + __retVal = b; +} + +float __constructor(const int i) +{ + __asm ivec4_to_vec4 __retVal, i; +} + +float __constructor(const bool b) +{ + __asm ivec4_to_vec4 __retVal, b; +} + +float __constructor(const float f) +{ + __retVal = f; +} + + +//// vec2 constructors + +vec2 __constructor(const float x, const float y) +{ + __retVal.x = x; + __retVal.y = y; +} + +vec2 __constructor(const float f) +{ + __asm vec4_move __retVal.xy, f; +} + +vec2 __constructor(const int i) +{ + __asm ivec4_to_vec4 __retVal.xy, i; +} + +vec2 __constructor(const bool b) +{ + __asm ivec4_to_vec4 __retVal.xy, b; +} + +vec2 __constructor(const bvec2 b) +{ +// __retVal = b; + __asm ivec4_to_vec4 __retVal.xy, b; +} + +vec2 __constructor(const vec3 v) +{ + __asm vec4_move __retVal.xy, v.xy; +} + +vec2 __constructor(const vec4 v) +{ + __asm vec4_move __retVal.xy, v.xy; +} + + +//// vec3 constructors + +vec3 __constructor(const float x, const float y, const float z) +{ + __retVal.x = x; + __retVal.y = y; + __retVal.z = z; +} + +vec3 __constructor(const float f) +{ + // Note: this could be "__retVal.xyz = f" but that's an illegal assignment + __asm vec4_move __retVal.xyz, f; +} + +vec3 __constructor(const int i) +{ + __asm ivec4_to_vec4 __retVal.xyz, i; +} + +vec3 __constructor(const bool b) +{ + __asm ivec4_to_vec4 __retVal.xyz, b; +} + +vec3 __constructor(const bvec3 b) +{ + __asm ivec4_to_vec4 __retVal.xyz, b; +} + +vec3 __constructor(const vec4 v) +{ + __asm vec4_move __retVal.xyz, v; +} + + +//// vec4 constructors + +vec4 __constructor(const float x, const float y, const float z, const float w) +{ + __retVal.x = x; + __retVal.y = y; + __retVal.z = z; + __retVal.w = w; +} + +vec4 __constructor(const float f) +{ + // Note: this could be "__retVal = f" but that's an illegal assignment + __asm vec4_move __retVal, f; +} + +vec4 __constructor(const int i) +{ + __asm ivec4_to_vec4 __retVal, i; +} + +vec4 __constructor(const bool b) +{ + __asm ivec4_to_vec4 __retVal, b; +} + +vec4 __constructor(const bvec4 b) +{ + __asm ivec4_to_vec4 __retVal, b; +} + +vec4 __constructor(const ivec4 i) +{ + __asm ivec4_to_vec4 __retVal, i; +} + +vec4 __constructor(const vec3 v3, const float f) +{ + // XXX this constructor shouldn't be needed anymore + __retVal.xyz = v3; + __retVal.w = f; +} + +vec4 __constructor(const vec2 v2, const float f1, const float f2) +{ + // XXX this constructor shouldn't be needed anymore + __retVal.xy = v2; + __retVal.z = f1; + __retVal.w = f2; +} + + +//// ivec2 constructors + +ivec2 __constructor(const int i, const int j) +{ + __retVal.x = i; + __retVal.y = j; +} + +ivec2 __constructor(const int i) +{ + __asm vec4_move __retVal.xy, i; +} + +ivec2 __constructor(const float f) +{ + __asm vec4_to_ivec4 __retVal.xy, f; +} + +ivec2 __constructor(const bool b) +{ + __asm vec4_to_ivec4 __retVal.xy, b; +} + + +//// ivec3 constructors + +ivec3 __constructor(const int i, const int j, const int k) +{ + __retVal.x = i; + __retVal.y = j; + __retVal.z = k; +} + +ivec3 __constructor(const int i) +{ + __asm vec4_move __retVal.xyz, i; +} + +ivec3 __constructor(const float f) +{ + __asm vec4_to_ivec4 __retVal.xyz, f; +} + +ivec3 __constructor(const bool b) +{ + __asm vec4_move __retVal.xyz, b; +} + + +//// ivec4 constructors + +ivec4 __constructor(const int x, const int y, const int z, const int w) +{ + __retVal.x = x; + __retVal.y = y; + __retVal.z = z; + __retVal.w = w; +} + +ivec4 __constructor(const int i) +{ + __asm vec4_move __retVal, i; +} + +ivec4 __constructor(const float f) +{ + __asm vec4_to_ivec4 __retVal, f; +} + +ivec4 __constructor(const bool b) +{ + __asm vec4_to_ivec4 __retVal, b; +} + + +//// bvec2 constructors + +bvec2 __constructor(const bool b1, const bool b2) +{ + __retVal.x = b1; + __retVal.y = b2; +} + +bvec2 __constructor(const int i1, const int i2) +{ + __asm vec4_sne __retVal.x, i1, 0.0; + __asm vec4_sne __retVal.y, i2, 0.0; +} + + +bvec2 __constructor(const bool b) +{ + __asm vec4_move __retVal.xy, b; +} + +bvec2 __constructor(const float f) +{ + __asm vec4_sne __retVal.xy, f, 0.0; +} + +bvec2 __constructor(const int i) +{ + __asm vec4_sne __retVal.xy, i, 0.0; +} + +bvec2 __constructor(const vec2 v) +{ + __asm vec4_sne __retVal.xy, v, 0.0; +} + +bvec2 __constructor(const ivec2 v) +{ + __asm vec4_sne __retVal.xy, v, 0.0; +} + + + +//// bvec3 constructors + +bvec3 __constructor(const bool b1, const bool b2, const bool b3) +{ + __retVal.x = b1; + __retVal.y = b2; + __retVal.z = b3; +} + +bvec3 __constructor(const float f1, const float f2, const float f3) +{ + __asm vec4_sne __retVal.x, f1, 0.0; + __asm vec4_sne __retVal.y, f2, 0.0; + __asm vec4_sne __retVal.z, f3, 0.0; +} + +bvec3 __constructor(const bool b) +{ + __asm vec4_move __retVal.xyz, b; +} + +bvec3 __constructor(const float f) +{ + __asm vec4_sne __retVal.xyz, f, 0.0; +} + +bvec3 __constructor(const int i) +{ + __asm vec4_sne __retVal.xyz, i, 0.0; +} + +bvec3 __constructor(const vec3 v) +{ + __asm vec4_sne __retVal.xyz, v, 0.0; +} + +bvec3 __constructor(const ivec3 v) +{ + __asm vec4_sne __retVal.xyz, v, 0.0; +} + + + +//// bvec4 constructors + +bvec4 __constructor(const bool b1, const bool b2, const bool b3, const bool b4) +{ + __retVal.x = b1; + __retVal.y = b2; + __retVal.z = b3; + __retVal.w = b4; +} + +bvec4 __constructor(const float f1, const float f2, const float f3, const float f4) +{ + const float zero = 0.0; + __asm vec4_sne __retVal.x, f1, zero; + __asm vec4_sne __retVal.y, f2, zero; + __asm vec4_sne __retVal.z, f3, zero; + __asm vec4_sne __retVal.w, f4, zero; +} + +bvec4 __constructor(const bool b) +{ + __asm vec4_move __retVal.xyzw, b; +} + +bvec4 __constructor(const float f) +{ + __asm vec4_sne __retVal.xyzw, f, 0.0; +} + +bvec4 __constructor(const int i) +{ + __asm vec4_sne __retVal.xyzw, i, 0.0; +} + +bvec4 __constructor(const vec4 v) +{ + __asm vec4_sne __retVal.xyzw, v, 0.0; +} + +bvec4 __constructor(const ivec4 v) +{ + __asm vec4_sne __retVal.xyzw, v, 0.0; +} + + + +//// mat2 constructors + +mat2 __constructor(const float m00, const float m10, + const float m01, const float m11) +{ + __retVal[0].x = m00; + __retVal[0].y = m10; + __retVal[1].x = m01; + __retVal[1].y = m11; +} + +mat2 __constructor(const float f) +{ + __retVal[0].x = f; + __retVal[0].y = 0.0; + __retVal[1].x = 0.0; + __retVal[1].y = f; +} + +mat2 __constructor(const int i) +{ + return mat2(float(i)); +} + +mat2 __constructor(const bool b) +{ + return mat2(float(b)); +} + +mat2 __constructor(const vec2 c0, const vec2 c1) +{ + __retVal[0] = c0; + __retVal[1] = c1; +} + + +//// mat3 constructors + +mat3 __constructor(const float m00, const float m10, const float m20, + const float m01, const float m11, const float m21, + const float m02, const float m12, const float m22) +{ + __retVal[0].x = m00; + __retVal[0].y = m10; + __retVal[0].z = m20; + __retVal[1].x = m01; + __retVal[1].y = m11; + __retVal[1].z = m21; + __retVal[2].x = m02; + __retVal[2].y = m12; + __retVal[2].z = m22; +} + +mat3 __constructor(const float f) +{ + vec2 v = vec2(f, 0.0); + __retVal[0] = v.xyy; + __retVal[1] = v.yxy; + __retVal[2] = v.yyx; +} + +mat3 __constructor(const int i) +{ + return mat3(float(i)); +} + +mat3 __constructor(const bool b) +{ + return mat3(float(b)); +} + +mat3 __constructor(const vec3 c0, const vec3 c1, const vec3 c2) +{ + __retVal[0] = c0; + __retVal[1] = c1; + __retVal[2] = c2; +} + + +//// mat4 constructors + +mat4 __constructor(const float m00, const float m10, const float m20, const float m30, + const float m01, const float m11, const float m21, const float m31, + const float m02, const float m12, const float m22, const float m32, + const float m03, const float m13, const float m23, const float m33) +{ + __retVal[0].x = m00; + __retVal[0].y = m10; + __retVal[0].z = m20; + __retVal[0].w = m30; + __retVal[1].x = m01; + __retVal[1].y = m11; + __retVal[1].z = m21; + __retVal[1].w = m31; + __retVal[2].x = m02; + __retVal[2].y = m12; + __retVal[2].z = m22; + __retVal[2].w = m32; + __retVal[3].x = m03; + __retVal[3].y = m13; + __retVal[3].z = m23; + __retVal[3].w = m33; +} + + +mat4 __constructor(const float f) +{ + vec2 v = vec2(f, 0.0); + __retVal[0] = v.xyyy; + __retVal[1] = v.yxyy; + __retVal[2] = v.yyxy; + __retVal[3] = v.yyyx; +} + +mat4 __constructor(const int i) +{ + return mat4(float(i)); +} + +mat4 __constructor(const bool b) +{ + return mat4(float(b)); +} + +mat4 __constructor(const vec4 c0, const vec4 c1, const vec4 c2, const vec4 c3) +{ + __retVal[0] = c0; + __retVal[1] = c1; + __retVal[2] = c2; + __retVal[3] = c3; +} + + + +//// Basic int operators + +int __operator + (const int a, const int b) +{ + __asm vec4_add __retVal, a, b; +} + +int __operator - (const int a, const int b) +{ + __asm vec4_subtract __retVal, a, b; +} + +int __operator * (const int a, const int b) +{ + __asm vec4_multiply __retVal, a, b; +} + +int __operator / (const int a, const int b) +{ + float bInv, x; + __asm float_rcp bInv, b; + __asm vec4_multiply x, a, bInv; + __asm vec4_to_ivec4 __retVal, x; +} + + +//// Basic ivec2 operators + +ivec2 __operator + (const ivec2 a, const ivec2 b) +{ + __asm vec4_add __retVal, a, b; +} + +ivec2 __operator - (const ivec2 a, const ivec2 b) +{ + __asm vec4_subtract __retVal, a, b; +} + +ivec2 __operator * (const ivec2 a, const ivec2 b) +{ + __asm vec4_multiply __retVal, a, b; +} + +ivec2 __operator / (const ivec2 a, const ivec2 b) +{ + vec2 bInv, x; + __asm float_rcp bInv.x, b.x; + __asm float_rcp bInv.y, b.y; + __asm vec4_multiply x, a, bInv; + __asm vec4_to_ivec4 __retVal, x; +} + + +//// Basic ivec3 operators + +ivec3 __operator + (const ivec3 a, const ivec3 b) +{ + __asm vec4_add __retVal, a, b; +} + +ivec3 __operator - (const ivec3 a, const ivec3 b) +{ + __asm vec4_subtract __retVal, a, b; +} + +ivec3 __operator * (const ivec3 a, const ivec3 b) +{ + __asm vec4_multiply __retVal, a, b; +} + +ivec3 __operator / (const ivec3 a, const ivec3 b) +{ + vec3 bInv, x; + __asm float_rcp bInv.x, b.x; + __asm float_rcp bInv.y, b.y; + __asm float_rcp bInv.z, b.z; + __asm vec4_multiply x, a, bInv; + __asm vec4_to_ivec4 __retVal, x; +} + + +//// Basic ivec4 operators + +ivec4 __operator + (const ivec4 a, const ivec4 b) +{ + __asm vec4_add __retVal, a, b; +} + +ivec4 __operator - (const ivec4 a, const ivec4 b) +{ + __asm vec4_subtract __retVal, a, b; +} + +ivec4 __operator * (const ivec4 a, const ivec4 b) +{ + __asm vec4_multiply __retVal, a, b; +} + +ivec4 __operator / (const ivec4 a, const ivec4 b) +{ + vec4 bInv, x; + __asm float_rcp bInv.x, b.x; + __asm float_rcp bInv.y, b.y; + __asm float_rcp bInv.z, b.z; + __asm float_rcp bInv.w, b.w; + __asm vec4_multiply x, a, bInv; + __asm vec4_to_ivec4 __retVal, x; +} + + +//// Basic float operators + +float __operator + (const float a, const float b) +{ + __asm vec4_add __retVal, a, b; +} + +float __operator - (const float a, const float b) +{ + __asm vec4_subtract __retVal, a, b; +} + +float __operator * (const float a, const float b) +{ + __asm vec4_multiply __retVal, a, b; +} + +float __operator / (const float a, const float b) +{ + float bInv; + __asm float_rcp bInv.x, b; + __asm vec4_multiply __retVal, a, bInv; +} + + +//// Basic vec2 operators + +vec2 __operator + (const vec2 v, const vec2 u) +{ + __asm vec4_add __retVal.xy, v, u; +} + +vec2 __operator - (const vec2 v, const vec2 u) +{ + __asm vec4_subtract __retVal.xy, v, u; +} + +vec2 __operator * (const vec2 v, const vec2 u) +{ + __asm vec4_multiply __retVal.xy, v, u; +} + +vec2 __operator / (const vec2 v, const vec2 u) +{ + vec2 w; // = 1 / u + __asm float_rcp w.x, u.x; + __asm float_rcp w.y, u.y; + __asm vec4_multiply __retVal.xy, v, w; +} + + +//// Basic vec3 operators + +vec3 __operator + (const vec3 v, const vec3 u) +{ + __asm vec4_add __retVal.xyz, v, u; +} + +vec3 __operator - (const vec3 v, const vec3 u) +{ + __asm vec4_subtract __retVal.xyz, v, u; +} + +vec3 __operator * (const vec3 v, const vec3 u) +{ + __asm vec4_multiply __retVal.xyz, v, u; +} + +vec3 __operator / (const vec3 v, const vec3 u) +{ + vec3 w; // = 1 / u + __asm float_rcp w.x, u.x; + __asm float_rcp w.y, u.y; + __asm float_rcp w.z, u.z; + __asm vec4_multiply __retVal.xyz, v, w; +} + + +//// Basic vec4 operators + +vec4 __operator + (const vec4 v, const vec4 u) +{ + __asm vec4_add __retVal, v, u; +} + +vec4 __operator - (const vec4 v, const vec4 u) +{ + __asm vec4_subtract __retVal, v, u; +} + +vec4 __operator * (const vec4 v, const vec4 u) +{ + __asm vec4_multiply __retVal, v, u; +} + +vec4 __operator / (const vec4 v, const vec4 u) +{ + vec4 w; // = 1 / u + __asm float_rcp w.x, u.x; + __asm float_rcp w.y, u.y; + __asm float_rcp w.z, u.z; + __asm float_rcp w.w, u.w; + __asm vec4_multiply __retVal, v, w; +} + + + + +//// Basic vec2/float operators + +vec2 __operator + (const float a, const vec2 u) +{ + __asm vec4_add __retVal.xy, a, u.xy; +} + +vec2 __operator + (const vec2 v, const float b) +{ + __asm vec4_add __retVal.xy, v.xy, b; +} + +vec2 __operator - (const float a, const vec2 u) +{ + __asm vec4_subtract __retVal.xy, a, u.xy; +} + +vec2 __operator - (const vec2 v, const float b) +{ + __asm vec4_subtract __retVal.xy, v.xy, b; +} + +vec2 __operator * (const float a, const vec2 u) +{ + __asm vec4_multiply __retVal.xy, a, u.xy; +} + +vec2 __operator * (const vec2 v, const float b) +{ + __asm vec4_multiply __retVal.xy, v.xy, b; +} + +vec2 __operator / (const float a, const vec2 u) +{ + vec2 invU; + __asm float_rcp invU.x, u.x; + __asm float_rcp invU.y, u.y; + __asm vec4_multiply __retVal.xy, a, invU.xy; +} + +vec2 __operator / (const vec2 v, const float b) +{ + float invB; + __asm float_rcp invB, b; + __asm vec4_multiply __retVal.xy, v.xy, invB; +} + + +//// Basic vec3/float operators + +vec3 __operator + (const float a, const vec3 u) +{ + __asm vec4_add __retVal.xyz, a, u.xyz; +} + +vec3 __operator + (const vec3 v, const float b) +{ + __asm vec4_add __retVal.xyz, v.xyz, b; +} + +vec3 __operator - (const float a, const vec3 u) +{ + __asm vec4_subtract __retVal.xyz, a, u.xyz; +} + +vec3 __operator - (const vec3 v, const float b) +{ + __asm vec4_subtract __retVal.xyz, v.xyz, b; +} + +vec3 __operator * (const float a, const vec3 u) +{ + __asm vec4_multiply __retVal.xyz, a, u.xyz; +} + +vec3 __operator * (const vec3 v, const float b) +{ + __asm vec4_multiply __retVal.xyz, v.xyz, b; +} + +vec3 __operator / (const float a, const vec3 u) +{ + vec3 invU; + __asm float_rcp invU.x, u.x; + __asm float_rcp invU.y, u.y; + __asm float_rcp invU.z, u.z; + __asm vec4_multiply __retVal.xyz, a, invU.xyz; +} + +vec3 __operator / (const vec3 v, const float b) +{ + float invB; + __asm float_rcp invB, b; + __asm vec4_multiply __retVal.xyz, v.xyz, invB; +} + + +//// Basic vec4/float operators + +vec4 __operator + (const float a, const vec4 u) +{ + __asm vec4_add __retVal, a, u; +} + +vec4 __operator + (const vec4 v, const float b) +{ + __asm vec4_add __retVal, v, b; +} + +vec4 __operator - (const float a, const vec4 u) +{ + __asm vec4_subtract __retVal, a, u; +} + +vec4 __operator - (const vec4 v, const float b) +{ + __asm vec4_subtract __retVal, v, b; +} + +vec4 __operator * (const float a, const vec4 u) +{ + __asm vec4_multiply __retVal, a, u; +} + +vec4 __operator * (const vec4 v, const float b) +{ + __asm vec4_multiply __retVal, v, b; +} + +vec4 __operator / (const float a, const vec4 u) +{ + vec4 invU; + __asm float_rcp invU.x, u.x; + __asm float_rcp invU.y, u.y; + __asm float_rcp invU.z, u.z; + __asm float_rcp invU.w, u.w; + __asm vec4_multiply __retVal, a, invU; +} + +vec4 __operator / (const vec4 v, const float b) +{ + float invB; + __asm float_rcp invB, b; + __asm vec4_multiply __retVal, v, invB; +} + + + +//// Basic ivec2/int operators + +ivec2 __operator + (const int a, const ivec2 u) +{ + __retVal = ivec2(a) + u; +} + +ivec2 __operator + (const ivec2 v, const int b) +{ + __retVal = v + ivec2(b); +} + +ivec2 __operator - (const int a, const ivec2 u) +{ + __retVal = ivec2(a) - u; +} + +ivec2 __operator - (const ivec2 v, const int b) +{ + __retVal = v - ivec2(b); +} + +ivec2 __operator * (const int a, const ivec2 u) +{ + __retVal = ivec2(a) * u; +} + +ivec2 __operator * (const ivec2 v, const int b) +{ + __retVal = v * ivec2(b); +} + +ivec2 __operator / (const int a, const ivec2 u) +{ + __retVal = ivec2(a) / u; +} + +ivec2 __operator / (const ivec2 v, const int b) +{ + __retVal = v / ivec2(b); +} + + +//// Basic ivec3/int operators + +ivec3 __operator + (const int a, const ivec3 u) +{ + __retVal = ivec3(a) + u; +} + +ivec3 __operator + (const ivec3 v, const int b) +{ + __retVal = v + ivec3(b); +} + +ivec3 __operator - (const int a, const ivec3 u) +{ + __retVal = ivec3(a) - u; +} + +ivec3 __operator - (const ivec3 v, const int b) +{ + __retVal = v - ivec3(b); +} + +ivec3 __operator * (const int a, const ivec3 u) +{ + __retVal = ivec3(a) * u; +} + +ivec3 __operator * (const ivec3 v, const int b) +{ + __retVal = v * ivec3(b); +} + +ivec3 __operator / (const int a, const ivec3 u) +{ + __retVal = ivec3(a) / u; +} + +ivec3 __operator / (const ivec3 v, const int b) +{ + __retVal = v / ivec3(b); +} + + +//// Basic ivec4/int operators + +ivec4 __operator + (const int a, const ivec4 u) +{ + __retVal = ivec4(a) + u; +} + +ivec4 __operator + (const ivec4 v, const int b) +{ + __retVal = v + ivec4(b); +} + +ivec4 __operator - (const int a, const ivec4 u) +{ + __retVal = ivec4(a) - u; +} + +ivec4 __operator - (const ivec4 v, const int b) +{ + __retVal = v - ivec4(b); +} + +ivec4 __operator * (const int a, const ivec4 u) +{ + __retVal = ivec4(a) * u; +} + +ivec4 __operator * (const ivec4 v, const int b) +{ + __retVal = v * ivec4(b); +} + +ivec4 __operator / (const int a, const ivec4 u) +{ + __retVal = ivec4(a) / u; +} + +ivec4 __operator / (const ivec4 v, const int b) +{ + __retVal = v / ivec4(b); +} + + + + +//// Unary negation operator + +int __operator - (const int a) +{ + __asm vec4_negate __retVal.x, a; +} + +ivec2 __operator - (const ivec2 v) +{ + __asm vec4_negate __retVal, v; +} + +ivec3 __operator - (const ivec3 v) +{ + __asm vec4_negate __retVal, v; +} + +ivec4 __operator - (const ivec4 v) +{ + __asm vec4_negate __retVal, v; +} + +float __operator - (const float a) +{ + __asm vec4_negate __retVal.x, a; +} + +vec2 __operator - (const vec2 v) +{ + __asm vec4_negate __retVal.xy, v.xy; +} + +vec3 __operator - (const vec3 v) +{ + __asm vec4_negate __retVal.xyz, v.xyz; +} + +vec4 __operator - (const vec4 v) +{ + __asm vec4_negate __retVal, v; +} + +mat2 __operator - (const mat2 m) +{ + __retVal[0] = -m[0]; + __retVal[1] = -m[1]; +} + +mat3 __operator - (const mat3 m) +{ + __retVal[0] = -m[0]; + __retVal[1] = -m[1]; + __retVal[2] = -m[2]; +} + +mat4 __operator - (const mat4 m) +{ + __retVal[0] = -m[0]; + __retVal[1] = -m[1]; + __retVal[2] = -m[2]; + __retVal[3] = -m[3]; +} + + + +//// dot product + +float dot(const float a, const float b) +{ + __retVal = a * b; +} + +float dot(const vec2 a, const vec2 b) +{ + __retVal = a.x * b.x + a.y * b.y; +} + +float dot(const vec3 a, const vec3 b) +{ + __asm vec3_dot __retVal, a, b; +} + +float dot(const vec4 a, const vec4 b) +{ + __asm vec4_dot __retVal, a, b; +} + + + +//// int assignment operators + +int __operator += (inout int a, const int b) +{ + a = a + b; + return a; +} + +int __operator -= (inout int a, const int b) +{ + a = a - b; + return a; +} + +int __operator *= (inout int a, const int b) +{ + a = a * b; + return a; +} + +int __operator /= (inout int a, const int b) +{ + a = a / b; + return a; +} + + +//// ivec2 assignment operators + +ivec2 __operator += (inout ivec2 v, const ivec2 u) +{ + v = v + u; + return v; +} + +ivec2 __operator -= (inout ivec2 v, const ivec2 u) +{ + v = v - u; + return v; +} + +ivec2 __operator *= (inout ivec2 v, const ivec2 u) +{ + v = v * u; + return v; +} + +ivec2 __operator /= (inout ivec2 v, const ivec2 u) +{ + v = v / u; + return v; +} + + +//// ivec3 assignment operators + +ivec3 __operator += (inout ivec3 v, const ivec3 u) +{ + v = v + u; + return v; +} + +ivec3 __operator -= (inout ivec3 v, const ivec3 u) +{ + v = v - u; + return v; +} + +ivec3 __operator *= (inout ivec3 v, const ivec3 u) +{ + v = v * u; + return v; +} + +ivec3 __operator /= (inout ivec3 v, const ivec3 u) +{ + v = v / u; + return v; +} + + +//// ivec4 assignment operators + +ivec4 __operator += (inout ivec4 v, const ivec4 u) +{ + v = v + u; + return v; +} + +ivec4 __operator -= (inout ivec4 v, const ivec4 u) +{ + v = v - u; + return v; +} + +ivec4 __operator *= (inout ivec4 v, const ivec4 u) +{ + v = v * u; + return v; +} + +ivec4 __operator /= (inout ivec4 v, const ivec4 u) +{ + v = v / u; + return v; +} + + +//// float assignment operators + +float __operator += (inout float a, const float b) +{ + a = a + b; + return a; +} + +float __operator -= (inout float a, const float b) +{ + a = a - b; + return a; +} + +float __operator *= (inout float a, const float b) +{ + a = a * b; + return a; +} + +float __operator /= (inout float a, const float b) +{ + a = a / b; + return a; +} + + +//// vec2 assignment operators + +vec2 __operator += (inout vec2 v, const vec2 u) +{ + v = v + u; + return v; +} + +vec2 __operator -= (inout vec2 v, const vec2 u) +{ + v = v - u; + return v; +} + +vec2 __operator *= (inout vec2 v, const vec2 u) +{ + v = v * u; + return v; +} + +vec2 __operator /= (inout vec2 v, const vec2 u) +{ + v = v / u; + return v; +} + + +//// vec3 assignment operators + +vec3 __operator += (inout vec3 v, const vec3 u) +{ + v = v + u; + return v; +} + +vec3 __operator -= (inout vec3 v, const vec3 u) +{ + v = v - u; + return v; +} + +vec3 __operator *= (inout vec3 v, const vec3 u) +{ + v = v * u; + return v; +} + +vec3 __operator /= (inout vec3 v, const vec3 u) +{ + v = v / u; + return v; +} + + +//// vec4 assignment operators + +vec4 __operator += (inout vec4 v, const vec4 u) +{ + v = v + u; + return v; +} + +vec4 __operator -= (inout vec4 v, const vec4 u) +{ + v = v - u; + return v; +} + +vec4 __operator *= (inout vec4 v, const vec4 u) +{ + v = v * u; + return v; +} + +vec4 __operator /= (inout vec4 v, const vec4 u) +{ + v = v / u; + return v; +} + + + +//// ivec2/int assignment operators + +ivec2 __operator += (inout ivec2 v, const int a) +{ + v = v + ivec2(a); + return v; +} + +ivec2 __operator -= (inout ivec2 v, const int a) +{ + v = v - ivec2(a); + return v; +} + +ivec2 __operator *= (inout ivec2 v, const int a) +{ + v = v * ivec2(a); + return v; +} + +ivec2 __operator /= (inout ivec2 v, const int a) +{ + v = v / ivec2(a); + return v; +} + + +//// ivec3/int assignment operators + +ivec3 __operator += (inout ivec3 v, const int a) +{ + v = v + ivec3(a); + return v; +} + +ivec3 __operator -= (inout ivec3 v, const int a) +{ + v = v - ivec3(a); + return v; +} + +ivec3 __operator *= (inout ivec3 v, const int a) +{ + v = v * ivec3(a); + return v; +} + +ivec4 __operator /= (inout ivec3 v, const int a) +{ + v = v / ivec3(a); + return v; +} + + +//// ivec4/int assignment operators + +ivec4 __operator += (inout ivec4 v, const int a) +{ + v = v + ivec4(a); + return v; +} + +ivec4 __operator -= (inout ivec4 v, const int a) +{ + v = v - ivec4(a); + return v; +} + +ivec4 __operator *= (inout ivec4 v, const int a) +{ + v = v * ivec4(a); + return v; +} + +ivec4 __operator /= (inout ivec4 v, const int a) +{ + v = v / ivec4(a); + return v; +} + + + +//// vec2/float assignment operators + +vec2 __operator += (inout vec2 v, const float a) +{ + v = v + vec2(a); + return v; +} + +vec2 __operator -= (inout vec2 v, const float a) +{ + v = v - vec2(a); + return v; +} + +vec2 __operator *= (inout vec2 v, const float a) +{ + v = v * vec2(a); + return v; +} + +vec2 __operator /= (inout vec2 v, const float a) +{ + v = v / vec2(a); + return v; +} + + +//// vec3/float assignment operators + +vec3 __operator += (inout vec3 v, const float a) +{ + v = v + vec3(a); + return v; +} + +vec3 __operator -= (inout vec3 v, const float a) +{ + v = v - vec3(a); + return v; +} + +vec3 __operator *= (inout vec3 v, const float a) +{ + v = v * vec3(a); + return v; +} + +vec3 __operator /= (inout vec3 v, const float a) +{ + v = v / vec3(a); + return v; +} + + +//// vec4/float assignment operators + +vec4 __operator += (inout vec4 v, const float a) +{ + v = v + vec4(a); + return v; +} + +vec4 __operator -= (inout vec4 v, const float a) +{ + v = v - vec4(a); + return v; +} + +vec4 __operator *= (inout vec4 v, const float a) +{ + v = v * vec4(a); + return v; +} + +vec4 __operator /= (inout vec4 v, const float a) +{ + v = v / vec4(a); + return v; +} + + + + + +//// Basic mat2 operations + +mat2 __operator + (const mat2 m, const mat2 n) +{ + __retVal[0] = m[0] + n[0]; + __retVal[1] = m[1] + n[1]; +} + +mat2 __operator - (const mat2 m, const mat2 n) +{ + __retVal[0] = m[0] - n[0]; + __retVal[1] = m[1] - n[1]; +} + +mat2 __operator * (const mat2 m, const mat2 n) +{ + __retVal[0] = m[0] * n[0].xx + m[1] * n[0].yy; + __retVal[1] = m[0] * n[1].xx + m[1] * n[1].yy; +} + +mat2 __operator / (const mat2 m, const mat2 n) +{ + __retVal[0] = m[0] / n[0]; + __retVal[1] = m[1] / n[1]; +} + + +//// Basic mat3 operations + +mat3 __operator + (const mat3 m, const mat3 n) +{ + __retVal[0] = m[0] + n[0]; + __retVal[1] = m[1] + n[1]; + __retVal[2] = m[2] + n[2]; +} + +mat3 __operator - (const mat3 m, const mat3 n) +{ + __retVal[0] = m[0] - n[0]; + __retVal[1] = m[1] - n[1]; + __retVal[2] = m[2] - n[2]; +} + +mat3 __operator * (const mat3 m, const mat3 n) +{ + __retVal[0] = m[0] * n[0].xxx + m[1] * n[0].yyy + m[2] * n[0].zzz; + __retVal[1] = m[0] * n[1].xxx + m[1] * n[1].yyy + m[2] * n[1].zzz; + __retVal[2] = m[0] * n[2].xxx + m[1] * n[2].yyy + m[2] * n[2].zzz; +} + +mat3 __operator / (const mat3 m, const mat3 n) +{ + __retVal[0] = m[0] / n[0]; + __retVal[1] = m[1] / n[1]; + __retVal[2] = m[2] / n[2]; +} + + +//// Basic mat4 operations + +mat4 __operator + (const mat4 m, const mat4 n) +{ + __retVal[0] = m[0] + n[0]; + __retVal[1] = m[1] + n[1]; + __retVal[2] = m[2] + n[2]; + __retVal[3] = m[3] + n[3]; +} + +mat4 __operator - (const mat4 m, const mat4 n) +{ + __retVal[0] = m[0] - n[0]; + __retVal[1] = m[1] - n[1]; + __retVal[2] = m[2] - n[2]; + __retVal[3] = m[3] - n[3]; +} + +mat4 __operator * (const mat4 m, const mat4 n) +{ + __retVal[0] = m[0] * n[0].xxxx + m[1] * n[0].yyyy + m[2] * n[0].zzzz + m[3] * n[0].wwww; + __retVal[1] = m[0] * n[1].xxxx + m[1] * n[1].yyyy + m[2] * n[1].zzzz + m[3] * n[1].wwww; + __retVal[2] = m[0] * n[2].xxxx + m[1] * n[2].yyyy + m[2] * n[2].zzzz + m[3] * n[2].wwww; + __retVal[3] = m[0] * n[3].xxxx + m[1] * n[3].yyyy + m[2] * n[3].zzzz + m[3] * n[3].wwww; +} + +mat4 __operator / (const mat4 m, const mat4 n) +{ + __retVal[0] = m[0] / n[0]; + __retVal[1] = m[1] / n[1]; + __retVal[2] = m[2] / n[2]; + __retVal[3] = m[3] / n[3]; +} + + +//// mat2/float operations + +mat2 __operator + (const float a, const mat2 n) +{ + __retVal[0] = a + n[0]; + __retVal[1] = a + n[1]; +} + +mat2 __operator + (const mat2 m, const float b) +{ + __retVal[0] = m[0] + b; + __retVal[1] = m[1] + b; +} + +mat2 __operator - (const float a, const mat2 n) +{ + __retVal[0] = a - n[0]; + __retVal[1] = a - n[1]; +} + +mat2 __operator - (const mat2 m, const float b) +{ + __retVal[0] = m[0] - b; + __retVal[1] = m[1] - b; +} + +mat2 __operator * (const float a, const mat2 n) +{ + __retVal[0] = a * n[0]; + __retVal[1] = a * n[1]; +} + +mat2 __operator * (const mat2 m, const float b) +{ + __retVal[0] = m[0] * b; + __retVal[1] = m[1] * b; +} + +mat2 __operator / (const float a, const mat2 n) +{ + __retVal[0] = a / n[0]; + __retVal[1] = a / n[1]; +} + +mat2 __operator / (const mat2 m, const float b) +{ + __retVal[0] = m[0] / b; + __retVal[1] = m[1] / b; +} + + +//// mat3/float operations + +mat3 __operator + (const float a, const mat3 n) +{ + __retVal[0] = a + n[0]; + __retVal[1] = a + n[1]; + __retVal[2] = a + n[2]; +} + +mat3 __operator + (const mat3 m, const float b) +{ + __retVal[0] = m[0] + b; + __retVal[1] = m[1] + b; + __retVal[2] = m[2] + b; +} + +mat3 __operator - (const float a, const mat3 n) +{ + __retVal[0] = a - n[0]; + __retVal[1] = a - n[1]; + __retVal[2] = a - n[2]; +} + +mat3 __operator - (const mat3 m, const float b) +{ + __retVal[0] = m[0] - b; + __retVal[1] = m[1] - b; + __retVal[2] = m[2] - b; +} + +mat3 __operator * (const float a, const mat3 n) +{ + __retVal[0] = a * n[0]; + __retVal[1] = a * n[1]; + __retVal[2] = a * n[2]; +} + +mat3 __operator * (const mat3 m, const float b) +{ + __retVal[0] = m[0] * b; + __retVal[1] = m[1] * b; + __retVal[2] = m[2] * b; +} + +mat3 __operator / (const float a, const mat3 n) +{ + __retVal[0] = a / n[0]; + __retVal[1] = a / n[1]; + __retVal[2] = a / n[2]; +} + +mat3 __operator / (const mat3 m, const float b) +{ + __retVal[0] = m[0] / b; + __retVal[1] = m[1] / b; + __retVal[2] = m[2] / b; +} + + +//// mat4/float operations + +mat4 __operator + (const float a, const mat4 n) +{ + __retVal[0] = a + n[0]; + __retVal[1] = a + n[1]; + __retVal[2] = a + n[2]; + __retVal[3] = a + n[3]; +} + +mat4 __operator + (const mat4 m, const float b) +{ + __retVal[0] = m[0] + b; + __retVal[1] = m[1] + b; + __retVal[2] = m[2] + b; + __retVal[3] = m[3] + b; +} + +mat4 __operator - (const float a, const mat4 n) +{ + __retVal[0] = a - n[0]; + __retVal[1] = a - n[1]; + __retVal[2] = a - n[2]; + __retVal[3] = a - n[3]; +} + +mat4 __operator - (const mat4 m, const float b) +{ + __retVal[0] = m[0] - b; + __retVal[1] = m[1] - b; + __retVal[2] = m[2] - b; + __retVal[3] = m[3] - b; +} + +mat4 __operator * (const float a, const mat4 n) +{ + __retVal[0] = a * n[0]; + __retVal[1] = a * n[1]; + __retVal[2] = a * n[2]; + __retVal[3] = a * n[3]; +} + +mat4 __operator * (const mat4 m, const float b) +{ + __retVal[0] = m[0] * b; + __retVal[1] = m[1] * b; + __retVal[2] = m[2] * b; + __retVal[3] = m[3] * b; +} + +mat4 __operator / (const float a, const mat4 n) +{ + __retVal[0] = a / n[0]; + __retVal[1] = a / n[1]; + __retVal[2] = a / n[2]; + __retVal[3] = a / n[3]; +} + +mat4 __operator / (const mat4 m, const float b) +{ + __retVal[0] = m[0] / b; + __retVal[1] = m[1] / b; + __retVal[2] = m[2] / b; + __retVal[3] = m[3] / b; +} + + + +//// matrix / vector products + +vec2 __operator * (const mat2 m, const vec2 v) +{ + __retVal = m[0] * v.xx + + m[1] * v.yy; +} + +vec2 __operator * (const vec2 v, const mat2 m) +{ + __retVal.x = dot(v, m[0]); + __retVal.y = dot(v, m[1]); +} + +vec3 __operator * (const mat3 m, const vec3 v) +{ + __retVal = m[0] * v.xxx + + m[1] * v.yyy + + m[2] * v.zzz; +} + +vec3 __operator * (const vec3 v, const mat3 m) +{ + __retVal.x = dot(v, m[0]); + __retVal.y = dot(v, m[1]); + __retVal.z = dot(v, m[2]); +} + +vec4 __operator * (const mat4 m, const vec4 v) +{ + __retVal = m[0] * v.xxxx + + m[1] * v.yyyy + + m[2] * v.zzzz + + m[3] * v.wwww; +} + +vec4 __operator * (const vec4 v, const mat4 m) +{ + __retVal.x = dot(v, m[0]); + __retVal.y = dot(v, m[1]); + __retVal.z = dot(v, m[2]); + __retVal.w = dot(v, m[3]); +} + + + +//// mat2 assignment operators + +mat2 __operator += (inout mat2 m, const mat2 n) +{ + m[0] = m[0] + n[0]; + m[1] = m[1] + n[1]; + return m; +} + +mat2 __operator -= (inout mat2 m, const mat2 n) +{ + m[0] = m[0] - n[0]; + m[1] = m[1] - n[1]; + return m; +} + +mat2 __operator *= (inout mat2 m, const mat2 n) +{ + m = m * n; + return m; +} + +mat2 __operator /= (inout mat2 m, const mat2 n) +{ + m[0] = m[0] / n[0]; + m[1] = m[1] / n[1]; + return m; +} + + +//// mat3 assignment operators + +mat3 __operator += (inout mat3 m, const mat3 n) +{ + m[0] = m[0] + n[0]; + m[1] = m[1] + n[1]; + m[2] = m[2] + n[2]; + return m; +} + +mat3 __operator -= (inout mat3 m, const mat3 n) +{ + m[0] = m[0] - n[0]; + m[1] = m[1] - n[1]; + m[2] = m[2] - n[2]; + return m; +} + +mat3 __operator *= (inout mat3 m, const mat3 n) +{ + m = m * n; + return m; +} + +mat3 __operator /= (inout mat3 m, const mat3 n) +{ + m[0] = m[0] / n[0]; + m[1] = m[1] / n[1]; + m[2] = m[2] / n[2]; + return m; +} + + +// mat4 assignment operators + +mat4 __operator += (inout mat4 m, const mat4 n) +{ + m[0] = m[0] + n[0]; + m[1] = m[1] + n[1]; + m[2] = m[2] + n[2]; + m[3] = m[3] + n[3]; + return m; +} + +mat4 __operator -= (inout mat4 m, const mat4 n) +{ + m[0] = m[0] - n[0]; + m[1] = m[1] - n[1]; + m[2] = m[2] - n[2]; + m[3] = m[3] - n[3]; + return m; +} + +mat4 __operator *= (inout mat4 m, const mat4 n) +{ + m = m * n; + return m; +} + +mat4 __operator /= (inout mat4 m, const mat4 n) +{ + m[0] = m[0] / n[0]; + m[1] = m[1] / n[1]; + m[2] = m[2] / n[2]; + m[3] = m[3] / n[3]; + return m; +} + + +//// mat2/float assignment operators + +mat2 __operator += (inout mat2 m, const float a) +{ + vec2 v = vec2(a); + m[0] = m[0] + v; + m[1] = m[1] + v; + return m; +} + +mat2 __operator -= (inout mat2 m, const float a) +{ + vec2 v = vec2(a); + m[0] = m[0] - v; + m[1] = m[1] - v; + return m; +} + +mat2 __operator *= (inout mat2 m, const float a) +{ + vec2 v = vec2(a); + m[0] = m[0] * v; + m[1] = m[1] * v; + return m; +} + +mat2 __operator /= (inout mat2 m, const float a) +{ + vec2 v = vec2(1.0 / a); + m[0] = m[0] * v; + m[1] = m[1] * v; + return m; +} + + +//// mat3/float assignment operators + +mat3 __operator += (inout mat3 m, const float a) +{ + vec3 v = vec3(a); + m[0] = m[0] + v; + m[1] = m[1] + v; + m[2] = m[2] + v; + return m; +} + +mat3 __operator -= (inout mat3 m, const float a) +{ + vec3 v = vec3(a); + m[0] = m[0] - v; + m[1] = m[1] - v; + m[2] = m[2] - v; + return m; +} + +mat3 __operator *= (inout mat3 m, const float a) +{ + vec3 v = vec3(a); + m[0] = m[0] * v; + m[1] = m[1] * v; + m[2] = m[2] * v; + return m; +} + +mat3 __operator /= (inout mat3 m, const float a) +{ + vec3 v = vec3(1.0 / a); + m[0] = m[0] * v; + m[1] = m[1] * v; + m[2] = m[2] * v; + return m; +} + + +//// mat4/float assignment operators + +mat4 __operator += (inout mat4 m, const float a) +{ + vec4 v = vec4(a); + m[0] = m[0] + v; + m[1] = m[1] + v; + m[2] = m[2] + v; + m[3] = m[3] + v; + return m; +} + +mat4 __operator -= (inout mat4 m, const float a) +{ + vec4 v = vec4(a); + m[0] = m[0] - v; + m[1] = m[1] - v; + m[2] = m[2] - v; + m[3] = m[3] - v; + return m; +} + +mat4 __operator *= (inout mat4 m, const float a) +{ + vec4 v = vec4(a); + m[0] = m[0] * v; + m[1] = m[1] * v; + m[2] = m[2] * v; + m[3] = m[3] * v; + return m; +} + +mat4 __operator /= (inout mat4 m, const float a) +{ + vec4 v = vec4(1.0 / a); + m[0] = m[0] * v; + m[1] = m[1] * v; + m[2] = m[2] * v; + m[3] = m[3] * v; + return m; +} + + + +//// vec/mat assignment operators + +vec2 __operator *= (inout vec2 v, const mat2 m) +{ + v = v * m; + return v; +} + +vec3 __operator *= (inout vec3 v, const mat3 m) +{ + v = v * m; + return v; +} + +vec4 __operator *= (inout vec4 v, const mat4 m) +{ + v = v * m; + return v; +} + + + +//// pre-decrement operators + +int __operator --(inout int a) +{ + a = a - 1; + __retVal = a; +} + +ivec2 __operator --(inout ivec2 v) +{ + v = v - ivec2(1); + __retVal = v; +} + +ivec3 __operator --(inout ivec3 v) +{ + v = v - ivec3(1); + __retVal = v; +} + +ivec4 __operator --(inout ivec4 v) +{ + v = v - ivec4(1); + __retVal = v; +} + + +float __operator --(inout float a) +{ + a = a - 1.0; + __retVal = a; +} + +vec2 __operator --(inout vec2 v) +{ + v = v - vec2(1.0); + __retVal = v; +} + +vec3 __operator --(inout vec3 v) +{ + v = v - vec3(1.0); + __retVal = v; +} + +vec4 __operator --(inout vec4 v) +{ + v = v - vec4(1.0); + __retVal = v; +} + + +mat2 __operator --(inout mat2 m) +{ + m[0] = m[0] - vec2(1.0); + m[1] = m[1] - vec2(1.0); + __retVal = m; +} + +mat3 __operator --(inout mat3 m) +{ + m[0] = m[0] - vec3(1.0); + m[1] = m[1] - vec3(1.0); + m[2] = m[2] - vec3(1.0); + __retVal = m; +} + +mat4 __operator --(inout mat4 m) +{ + m[0] = m[0] - vec4(1.0); + m[1] = m[1] - vec4(1.0); + m[2] = m[2] - vec4(1.0); + m[3] = m[3] - vec4(1.0); + __retVal = m; +} + + +//// pre-increment operators + +int __operator ++(inout int a) +{ + a = a + 1; + __retVal = a; +} + +ivec2 __operator ++(inout ivec2 v) +{ + v = v + ivec2(1); + __retVal = v; +} + +ivec3 __operator ++(inout ivec3 v) +{ + v = v + ivec3(1); + __retVal = v; +} + +ivec4 __operator ++(inout ivec4 v) +{ + v = v + ivec4(1); + __retVal = v; +} + + +float __operator ++(inout float a) +{ + a = a + 1.0; + __retVal = a; +} + +vec2 __operator ++(inout vec2 v) +{ + v = v + vec2(1.0); + __retVal = v; +} + +vec3 __operator ++(inout vec3 v) +{ + v = v + vec3(1.0); + __retVal = v; +} + +vec4 __operator ++(inout vec4 v) +{ + v = v + vec4(1.0); + __retVal = v; +} + + +mat2 __operator ++(inout mat2 m) +{ + m[0] = m[0] + vec2(1.0); + m[1] = m[1] + vec2(1.0); + __retVal = m; +} + +mat3 __operator ++(inout mat3 m) +{ + m[0] = m[0] + vec3(1.0); + m[1] = m[1] + vec3(1.0); + m[2] = m[2] + vec3(1.0); + __retVal = m; +} + +mat4 __operator ++(inout mat4 m) +{ + m[0] = m[0] + vec4(1.0); + m[1] = m[1] + vec4(1.0); + m[2] = m[2] + vec4(1.0); + m[3] = m[3] + vec4(1.0); + __retVal = m; +} + + + +//// post-decrement + +int __postDecr(inout int a) +{ + __retVal = a; + a = a - 1; +} + +ivec2 __postDecr(inout ivec2 v) +{ + __retVal = v; + v = v - ivec2(1); +} + +ivec3 __postDecr(inout ivec3 v) +{ + __retVal = v; + v = v - ivec3(1); +} + +ivec4 __postDecr(inout ivec4 v) +{ + __retVal = v; + v = v - ivec4(1); +} + + +float __postDecr(inout float a) +{ + __retVal = a; + a = a - 1.0; +} + +vec2 __postDecr(inout vec2 v) +{ + __retVal = v; + v = v - vec2(1.0); +} + +vec3 __postDecr(inout vec3 v) +{ + __retVal = v; + v = v - vec3(1.0); +} + +vec4 __postDecr(inout vec4 v) +{ + __retVal = v; + v = v - vec4(1.0); +} + + +mat2 __postDecr(inout mat2 m) +{ + __retVal = m; + m[0] = m[0] - vec2(1.0); + m[1] = m[1] - vec2(1.0); +} + +mat3 __postDecr(inout mat3 m) +{ + __retVal = m; + m[0] = m[0] - vec3(1.0); + m[1] = m[1] - vec3(1.0); + m[2] = m[2] - vec3(1.0); +} + +mat4 __postDecr(inout mat4 m) +{ + __retVal = m; + m[0] = m[0] - vec4(1.0); + m[1] = m[1] - vec4(1.0); + m[2] = m[2] - vec4(1.0); + m[3] = m[3] - vec4(1.0); +} + + +//// post-increment + +float __postIncr(inout float a) +{ + __retVal = a; + a = a + 1; +} + +vec2 __postIncr(inout vec2 v) +{ + __retVal = v; + v = v + vec2(1.0); +} + +vec3 __postIncr(inout vec3 v) +{ + __retVal = v; + v = v + vec3(1.0); +} + +vec4 __postIncr(inout vec4 v) +{ + __retVal = v; + v = v + vec4(1.0); +} + + +int __postIncr(inout int a) +{ + __retVal = a; + a = a + 1; +} + +ivec2 __postIncr(inout ivec2 v) +{ + __retVal = v; + v = v + ivec2(1); +} + +ivec3 __postIncr(inout ivec3 v) +{ + __retVal = v; + v = v + ivec3(1); +} + +ivec4 __postIncr(inout ivec4 v) +{ + __retVal = v; + v = v + ivec3(1); +} + + +mat2 __postIncr(inout mat2 m) +{ + mat2 n = m; + m[0] = m[0] + vec2(1.0); + m[1] = m[1] + vec2(1.0); + return n; +} + +mat3 __postIncr(inout mat3 m) +{ + mat3 n = m; + m[0] = m[0] + vec3(1.0); + m[1] = m[1] + vec3(1.0); + m[2] = m[2] + vec3(1.0); + return n; +} + +mat4 __postIncr(inout mat4 m) +{ + mat4 n = m; + m[0] = m[0] + vec4(1.0); + m[1] = m[1] + vec4(1.0); + m[2] = m[2] + vec4(1.0); + m[3] = m[3] + vec4(1.0); + return n; +} + + + +//// inequality operators + + +// XXX are the inequality operators for floats/ints really needed???? +bool __operator < (const float a, const float b) +{ + __asm vec4_sgt __retVal.x, b, a; +} + + +bool __operator < (const int a, const int b) { + return float (a) < float (b); +} + +bool __operator > (const float a, const float b) { + bool c; + __asm float_less c, b, a; + return c; +} + +bool __operator > (const int a, const int b) { + return float (a) > float (b); +} + +bool __operator >= (const float a, const float b) { + bool g, e; + __asm float_less g, b, a; + __asm float_equal e, a, b; + return g || e; +} + +bool __operator >= (const int a, const int b) { + return float (a) >= float (b); +} + +bool __operator <= (const float a, const float b) { + bool g, e; + __asm float_less g, a, b; + __asm float_equal e, a, b; + return g || e; +} + +bool __operator <= (const int a, const int b) { + return float (a) <= float (b); +} + + + +// +// MESA-specific extension functions. +// + +void printMESA (const float f) { + __asm float_print f; +} + +void printMESA (const int i) { + __asm int_print i; +} + +void printMESA (const bool b) { + __asm bool_print b; +} + +void printMESA (const vec2 v) { + printMESA (v.x); + printMESA (v.y); +} + +void printMESA (const vec3 v) { + printMESA (v.x); + printMESA (v.y); + printMESA (v.z); +} + +void printMESA (const vec4 v) { + printMESA (v.x); + printMESA (v.y); + printMESA (v.z); + printMESA (v.w); +} + +void printMESA (const ivec2 v) { + printMESA (v.x); + printMESA (v.y); +} + +void printMESA (const ivec3 v) { + printMESA (v.x); + printMESA (v.y); + printMESA (v.z); +} + +void printMESA (const ivec4 v) { + printMESA (v.x); + printMESA (v.y); + printMESA (v.z); + printMESA (v.w); +} + +void printMESA (const bvec2 v) { + printMESA (v.x); + printMESA (v.y); +} + +void printMESA (const bvec3 v) { + printMESA (v.x); + printMESA (v.y); + printMESA (v.z); +} + +void printMESA (const bvec4 v) { + printMESA (v.x); + printMESA (v.y); + printMESA (v.z); + printMESA (v.w); +} + +void printMESA (const mat2 m) { + printMESA (m[0]); + printMESA (m[1]); +} + +void printMESA (const mat3 m) { + printMESA (m[0]); + printMESA (m[1]); + printMESA (m[2]); +} + +void printMESA (const mat4 m) { + printMESA (m[0]); + printMESA (m[1]); + printMESA (m[2]); + printMESA (m[3]); +} + +void printMESA (const sampler1D e) { + __asm int_print e; +} + +void printMESA (const sampler2D e) { + __asm int_print e; +} + +void printMESA (const sampler3D e) { + __asm int_print e; +} + +void printMESA (const samplerCube e) { + __asm int_print e; +} + +void printMESA (const sampler1DShadow e) { + __asm int_print e; +} + +void printMESA (const sampler2DShadow e) { + __asm int_print e; +} + diff --git a/mesalib/src/mesa/shader/slang/library/slang_core_gc.h b/mesalib/src/mesa/shader/slang/library/slang_core_gc.h new file mode 100644 index 000000000..b3d3e87cf --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_core_gc.h @@ -0,0 +1,869 @@ + +/* DO NOT EDIT - THIS FILE IS AUTOMATICALLY GENERATED FROM THE FOLLOWING FILE: */ +/* slang_core.gc */ + +5,1,90,95,0,0,5,0,1,1,1,0,0,9,0,102,0,0,0,1,4,118,101,99,52,95,116,111,95,105,118,101,99,52,0,18, +95,95,114,101,116,86,97,108,0,0,18,102,0,0,0,0,1,90,95,0,0,5,0,1,1,1,0,0,1,0,98,0,0,0,1,9,18,95,95, +114,101,116,86,97,108,0,18,98,0,20,0,0,1,90,95,0,0,5,0,1,1,1,0,0,5,0,105,0,0,0,1,9,18,95,95,114, +101,116,86,97,108,0,18,105,0,20,0,0,1,90,95,0,0,1,0,1,1,1,0,0,5,0,105,0,0,0,1,4,118,101,99,52,95, 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copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +// +// From Shader Spec, ver. 1.10, rev. 59 +// + +__fixed_input vec4 gl_FragCoord; +__fixed_input bool gl_FrontFacing; +__fixed_output vec4 gl_FragColor; +__fixed_output vec4 gl_FragData[gl_MaxDrawBuffers]; +__fixed_output float gl_FragDepth; + +varying vec4 gl_Color; +varying vec4 gl_SecondaryColor; +varying vec4 gl_TexCoord[gl_MaxTextureCoords]; +varying float gl_FogFragCoord; + + + +//// 8.7 Texture Lookup Functions (with bias) + +vec4 texture1D(const sampler1D sampler, const float coord, const float bias) +{ + vec4 coord4; + coord4.x = coord; + coord4.w = bias; + __asm vec4_tex_1d_bias __retVal, sampler, coord4; +} + +vec4 texture1DProj(const sampler1D sampler, const vec2 coord, const float bias) +{ + // do projection here (there's no vec4_texbp1d instruction) + vec4 pcoord; + pcoord.x = coord.x / coord.y; + pcoord.w = bias; + __asm vec4_tex_1d_bias __retVal, sampler, pcoord; +} + +vec4 texture1DProj(const sampler1D sampler, const vec4 coord, const float bias) +{ + // do projection here (there's no vec4_texbp1d instruction) + vec4 pcoord; + pcoord.x = coord.x / coord.z; + pcoord.w = bias; + __asm vec4_tex_1d_bias __retVal, sampler, pcoord; +} + + + + +vec4 texture2D(const sampler2D sampler, const vec2 coord, const float bias) +{ + vec4 coord4; + coord4.xy = coord.xy; + coord4.w = bias; + __asm vec4_tex_2d_bias __retVal, sampler, coord4; +} + +vec4 texture2DProj(const sampler2D sampler, const vec3 coord, const float bias) +{ + // do projection here (there's no vec4_texbp2d instruction) + vec4 pcoord; + pcoord.xy = coord.xy / coord.z; + pcoord.w = bias; + __asm vec4_tex_2d_bias __retVal, sampler, pcoord; +} + +vec4 texture2DProj(const sampler2D sampler, const vec4 coord, const float bias) +{ + // do projection here (there's no vec4_texbp2d instruction) + vec4 pcoord; + pcoord.xy = coord.xy / coord.w; + pcoord.w = bias; + __asm vec4_tex_2d_bias __retVal, sampler, pcoord; +} + + + + +vec4 texture3D(const sampler3D sampler, const vec3 coord, const float bias) +{ + vec4 coord4; + coord4.xyz = coord.xyz; + coord4.w = bias; + __asm vec4_tex_3d_bias __retVal, sampler, coord4; +} + +vec4 texture3DProj(const sampler3D sampler, const vec4 coord, const float bias) +{ + // do projection here (there's no vec4_texbp3d instruction) + vec4 pcoord; + pcoord.xyz = coord.xyz / coord.w; + pcoord.w = bias; + __asm vec4_tex_3d_bias __retVal, sampler, pcoord; +} + + + + +vec4 textureCube(const samplerCube sampler, const vec3 coord, const float bias) +{ + vec4 coord4; + coord4.xyz = coord; + coord4.w = bias; + __asm vec4_tex_cube __retVal, sampler, coord4; +} + + + +vec4 shadow1D(const sampler1DShadow sampler, const vec3 coord, const float bias) +{ + vec4 coord4; + coord4.xyz = coord; + coord4.w = bias; + __asm vec4_tex_1d_bias_shadow __retVal, sampler, coord4; +} + +vec4 shadow1DProj(const sampler1DShadow sampler, const vec4 coord, const float bias) +{ + vec4 pcoord; + pcoord.x = coord.x / coord.w; + pcoord.z = coord.z; + pcoord.w = bias; + __asm vec4_tex_1d_bias_shadow __retVal, sampler, pcoord; +} + +vec4 shadow2D(const sampler2DShadow sampler, const vec3 coord, const float bias) +{ + vec4 coord4; + coord4.xyz = coord; + coord4.w = bias; + __asm vec4_tex_2d_bias_shadow __retVal, sampler, coord4; +} + +vec4 shadow2DProj(const sampler2DShadow sampler, const vec4 coord, const float bias) +{ + vec4 pcoord; + pcoord.xy = coord.xy / coord.w; + pcoord.z = coord.z; + pcoord.w = bias; + __asm vec4_tex_2d_bias_shadow __retVal, sampler, pcoord; +} + + + +// +// 8.8 Fragment Processing Functions +// + +float dFdx(const float p) +{ + __asm vec4_ddx __retVal.x, p.xxxx; +} + +vec2 dFdx(const vec2 p) +{ + __asm vec4_ddx __retVal.xy, p.xyyy; +} + +vec3 dFdx(const vec3 p) +{ + __asm vec4_ddx __retVal.xyz, p.xyzz; +} + +vec4 dFdx(const vec4 p) +{ + __asm vec4_ddx __retVal, p; +} + +float dFdy(const float p) +{ + __asm vec4_ddy __retVal.x, p.xxxx; +} + +vec2 dFdy(const vec2 p) +{ + __asm vec4_ddy __retVal.xy, p.xyyy; +} + +vec3 dFdy(const vec3 p) +{ + __asm vec4_ddy __retVal.xyz, p.xyzz; +} + +vec4 dFdy(const vec4 p) +{ + __asm vec4_ddy __retVal, p; +} + +float fwidth (const float p) +{ + // XXX hand-write with __asm + return abs(dFdx(p)) + abs(dFdy(p)); +} + +vec2 fwidth(const vec2 p) +{ + // XXX hand-write with __asm + return abs(dFdx(p)) + abs(dFdy(p)); +} + +vec3 fwidth(const vec3 p) +{ + // XXX hand-write with __asm + return abs(dFdx(p)) + abs(dFdy(p)); +} + +vec4 fwidth(const vec4 p) +{ + // XXX hand-write with __asm + return abs(dFdx(p)) + abs(dFdy(p)); +} + diff --git a/mesalib/src/mesa/shader/slang/library/slang_fragment_builtin_gc.h b/mesalib/src/mesa/shader/slang/library/slang_fragment_builtin_gc.h new file mode 100644 index 000000000..c5a1cce2a --- /dev/null +++ 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+115,0,0,58,100,70,100,121,0,0,18,112,0,0,0,0,0,46,0,0,0 diff --git a/mesalib/src/mesa/shader/slang/library/slang_pp_directives.syn b/mesalib/src/mesa/shader/slang/library/slang_pp_directives.syn new file mode 100644 index 000000000..b51d168cc --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_pp_directives.syn @@ -0,0 +1,405 @@ +/* + * Mesa 3-D graphics library + * Version: 6.6 + * + * Copyright (C) 2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_pp_directives.syn + * slang preprocessor directives parser + * \author Michal Krol + */ + +.syntax source; + +/* + * This syntax script preprocesses a GLSL shader. + * It is assumed, that the #version directive has been parsed. Separate pass for parsing + * version gives better control on behavior depending on the version number given. + * + * The output is a source string with comments and directives removed. White spaces and comments + * are replaced with on or more spaces. All new-lines are preserved and converted to Linux format. + * Directives are escaped with a null character. The end of the source string is marked by + * two consecutive null characters. The consumer is responsible for executing the escaped + * directives, removing dead portions of code and expanding macros. + */ + +.emtcode ESCAPE_TOKEN 0 + +/* + * The TOKEN_* symbols follow the ESCAPE_TOKEN. + * + * NOTE: + * There is no TOKEN_IFDEF and neither is TOKEN_IFNDEF. They are handled with TOKEN_IF and + * operator defined. + * The "#ifdef SYMBOL" is replaced with "#if defined SYMBOL" + * The "#ifndef SYMBOL" is replaced with "#if !defined SYMBOL" + */ +.emtcode TOKEN_END 0 +.emtcode TOKEN_DEFINE 1 +.emtcode TOKEN_UNDEF 2 +.emtcode TOKEN_IF 3 +.emtcode TOKEN_ELSE 4 +.emtcode TOKEN_ELIF 5 +.emtcode TOKEN_ENDIF 6 +.emtcode TOKEN_ERROR 7 +.emtcode TOKEN_PRAGMA 8 +.emtcode TOKEN_EXTENSION 9 +.emtcode TOKEN_LINE 10 + +/* + * The PARAM_* symbols follow the TOKEN_DEFINE. + */ +.emtcode PARAM_END 0 +.emtcode PARAM_PARAMETER 1 + +/* + * The BEHAVIOR_* symbols follow the TOKEN_EXTENSION. + */ +.emtcode BEHAVIOR_REQUIRE 1 +.emtcode BEHAVIOR_ENABLE 2 +.emtcode BEHAVIOR_WARN 3 +.emtcode BEHAVIOR_DISABLE 4 + +/* + * The PRAGMA_* symbols follow TOKEN_PRAGMA + */ +.emtcode PRAGMA_NO_PARAM 0 +.emtcode PRAGMA_PARAM 1 + +source + optional_directive .and .loop source_element .and '\0' .emit ESCAPE_TOKEN .emit TOKEN_END; + +source_element + c_style_comment_block .or cpp_style_comment_block .or new_line_directive .or source_token; + +c_style_comment_block + '/' .and '*' .and c_style_comment_rest .and .true .emit ' '; + +c_style_comment_rest + .loop c_style_comment_body .and c_style_comment_end; + +c_style_comment_body + c_style_comment_char_nostar .or c_style_comment_char_star_noslashstar; + +c_style_comment_char_nostar + new_line .or '\x2B'-'\xFF' .or '\x01'-'\x29'; + +c_style_comment_char_star_noslashstar + '*' .and c_style_comment_char_star_noslashstar_1; +c_style_comment_char_star_noslashstar_1 + c_style_comment_char_noslashstar .or c_style_comment_char_star_noslashstar; + +c_style_comment_char_noslashstar + new_line .or '\x30'-'\xFF' .or '\x01'-'\x29' .or '\x2B'-'\x2E'; + +c_style_comment_end + '*' .and .loop c_style_comment_char_star .and '/'; + +c_style_comment_char_star + '*'; + +cpp_style_comment_block + '/' .and '/' .and cpp_style_comment_block_1; +cpp_style_comment_block_1 + cpp_style_comment_block_2 .or cpp_style_comment_block_3; +cpp_style_comment_block_2 + .loop cpp_style_comment_char .and new_line_directive; +cpp_style_comment_block_3 + .loop cpp_style_comment_char; + +cpp_style_comment_char + '\x0E'-'\xFF' .or '\x01'-'\x09' .or '\x0B'-'\x0C'; + +new_line_directive + new_line .and optional_directive; + +new_line + generic_new_line .emit '\n'; + +generic_new_line + carriage_return_line_feed .or line_feed_carriage_return .or '\n' .or '\r'; + +carriage_return_line_feed + '\r' .and '\n'; + +line_feed_carriage_return + '\n' .and '\r'; + +optional_directive + directive .emit ESCAPE_TOKEN .or .true; + +directive + dir_define .emit TOKEN_DEFINE .or + dir_undef .emit TOKEN_UNDEF .or + dir_if .emit TOKEN_IF .or + dir_ifdef .emit TOKEN_IF .emit 'd' .emit 'e' .emit 'f' .emit 'i' .emit 'n' .emit 'e' .emit 'd' + .emit ' ' .or + dir_ifndef .emit TOKEN_IF .emit '!' .emit 'd' .emit 'e' .emit 'f' .emit 'i' .emit 'n' .emit 'e' + .emit 'd' .emit ' ' .or + dir_else .emit TOKEN_ELSE .or + dir_elif .emit TOKEN_ELIF .or + dir_endif .emit TOKEN_ENDIF .or + dir_ext .emit TOKEN_EXTENSION .or + dir_pragma .emit TOKEN_PRAGMA .or + dir_line .emit TOKEN_LINE; + +dir_define + optional_space .and '#' .and optional_space .and "define" .and symbol .and opt_parameters .and + definition; + +dir_undef + optional_space .and '#' .and optional_space .and "undef" .and symbol; + +dir_if + optional_space .and '#' .and optional_space .and "if" .and expression; + +dir_ifdef + optional_space .and '#' .and optional_space .and "ifdef" .and symbol; + +dir_ifndef + optional_space .and '#' .and optional_space .and "ifndef" .and symbol; + +dir_else + optional_space .and '#' .and optional_space .and "else"; + +dir_elif + optional_space .and '#' .and optional_space .and "elif" .and expression; + +dir_endif + optional_space .and '#' .and optional_space .and "endif"; + +dir_ext + optional_space .and '#' .and optional_space .and "extension" .and space .and extension_name .and + optional_space .and ':' .and optional_space .and extension_behavior; + +dir_line + optional_space .and '#' .and optional_space .and "line" .and expression; + +dir_pragma + optional_space .and '#' .and optional_space .and "pragma" .and symbol .and opt_pragma_param; + + +opt_pragma_param + pragma_param .or .true .emit PRAGMA_NO_PARAM; + +pragma_param + optional_space .and '(' .emit PRAGMA_PARAM .and optional_space .and symbol_no_space .and optional_space .and ')'; + +symbol_no_space + symbol_character .emit * .and .loop symbol_character2 .emit * .and .true .emit '\0'; + +symbol + space .and symbol_character .emit * .and .loop symbol_character2 .emit * .and .true .emit '\0'; + +opt_parameters + parameters .or .true .emit PARAM_END; + +parameters + '(' .and parameters_1 .and optional_space .and ')' .emit PARAM_END; +parameters_1 + parameters_2 .or .true; +parameters_2 + parameter .emit PARAM_PARAMETER .and .loop parameters_3; +parameters_3 + optional_space .and ',' .and parameter .emit PARAM_PARAMETER; + +parameter + optional_space .and symbol_character .emit * .and .loop symbol_character2 .emit * .and + .true .emit '\0'; + +definition + .loop definition_character .emit * .and .true .emit '\0'; + +definition_character + '\x0E'-'\xFF' .or '\x01'-'\x09' .or '\x0B'-'\x0C'; + +expression + expression_element .and .loop expression_element .and .true .emit '\0'; + +expression_element + expression_character .emit *; + +expression_character + '\x0E'-'\xFF' .or '\x01'-'\x09' .or '\x0B'-'\x0C'; + +extension_name + symbol_character .emit * .and .loop symbol_character2 .emit * .and .true .emit '\0'; + +extension_behavior + "require" .emit BEHAVIOR_REQUIRE .or + "enable" .emit BEHAVIOR_ENABLE .or + "warn" .emit BEHAVIOR_WARN .or + "disable" .emit BEHAVIOR_DISABLE; + +optional_space + .loop single_space; + +space + single_space .and .loop single_space; + +single_space + ' ' .or '\t'; + +source_token + space .emit ' ' .or complex_token .or source_token_1; +source_token_1 + simple_token .emit ' ' .and .true .emit ' '; + +/* + * All possible tokens. + */ + +complex_token + identifier .or number; + +simple_token + increment .or decrement .or lequal .or gequal .or equal .or nequal .or and .or xor .or or .or + addto .or subtractfrom .or multiplyto .or divideto .or other; + +identifier + identifier_char1 .emit * .and .loop identifier_char2 .emit *; +identifier_char1 + 'a'-'z' .or 'A'-'Z' .or '_'; +identifier_char2 + 'a'-'z' .or 'A'-'Z' .or '0'-'9' .or '_'; + +number + float .or integer; + +digit_oct + '0'-'7'; + +digit_dec + '0'-'9'; + +digit_hex + '0'-'9' .or 'A'-'F' .or 'a'-'f'; + +float + float_1 .or float_2; +float_1 + float_fractional_constant .and float_optional_exponent_part; +float_2 + float_digit_sequence .and float_exponent_part; + +float_fractional_constant + float_fractional_constant_1 .or float_fractional_constant_2 .or float_fractional_constant_3; +float_fractional_constant_1 + float_digit_sequence .and '.' .emit '.' .and float_digit_sequence; +float_fractional_constant_2 + float_digit_sequence .and '.' .emit '.'; +float_fractional_constant_3 + '.' .emit '.' .and float_digit_sequence; + +float_optional_exponent_part + float_exponent_part .or .true; + +float_digit_sequence + digit_dec .emit * .and .loop digit_dec .emit *; + +float_exponent_part + float_exponent_part_1 .or float_exponent_part_2; +float_exponent_part_1 + 'e' .emit 'e' .and float_optional_sign .and float_digit_sequence; +float_exponent_part_2 + 'E' .emit 'E' .and float_optional_sign .and float_digit_sequence; + +float_optional_sign + '+' .emit '+' .or '-' .emit '-' .or .true; + +integer + integer_hex .or integer_oct .or integer_dec; + +integer_hex + '0' .emit '0' .and integer_hex_1 .emit * .and digit_hex .emit * .and + .loop digit_hex .emit *; +integer_hex_1 + 'x' .or 'X'; + +integer_oct + '0' .emit '0' .and .loop digit_oct .emit *; + +integer_dec + digit_dec .emit * .and .loop digit_dec .emit *; + +increment + '+' .emit * .and '+' .emit *; + +decrement + '-' .emit * .and '-' .emit *; + +lequal + '<' .emit * .and '=' .emit *; + +gequal + '>' .emit * .and '=' .emit *; + +equal + '=' .emit * .and '=' .emit *; + +nequal + '!' .emit * .and '=' .emit *; + +and + '&' .emit * .and '&' .emit *; + +xor + '^' .emit * .and '^' .emit *; + +or + '|' .emit * .and '|' .emit *; + +addto + '+' .emit * .and '=' .emit *; + +subtractfrom + '-' .emit * .and '=' .emit *; + +multiplyto + '*' .emit * .and '=' .emit *; + +divideto + '/' .emit * .and '=' .emit *; + +/* + * All characters except '\0' and '#'. + */ +other + '\x24'-'\xFF' .emit * .or '\x01'-'\x22' .emit *; + +symbol_character + 'A'-'Z' .or 'a'-'z' .or '_'; + +symbol_character2 + 'A'-'Z' .or 'a'-'z' .or '0'-'9' .or '_'; + +.string string_lexer; + +string_lexer + lex_first_identifier_character .and .loop lex_next_identifier_character; + +lex_first_identifier_character + 'a'-'z' .or 'A'-'Z' .or '_'; + +lex_next_identifier_character + 'a'-'z' .or 'A'-'Z' .or '0'-'9' .or '_'; + diff --git a/mesalib/src/mesa/shader/slang/library/slang_pp_directives_syn.h b/mesalib/src/mesa/shader/slang/library/slang_pp_directives_syn.h new file mode 100644 index 000000000..430f8d821 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_pp_directives_syn.h @@ -0,0 +1,250 @@ + +/* DO NOT EDIT - THIS FILE IS AUTOMATICALLY GENERATED FROM THE .syn FILE */ + +".syntax source;\n" +".emtcode ESCAPE_TOKEN 0\n" +".emtcode TOKEN_END 0\n" +".emtcode TOKEN_DEFINE 1\n" +".emtcode TOKEN_UNDEF 2\n" +".emtcode TOKEN_IF 3\n" +".emtcode TOKEN_ELSE 4\n" +".emtcode TOKEN_ELIF 5\n" +".emtcode TOKEN_ENDIF 6\n" +".emtcode TOKEN_ERROR 7\n" +".emtcode TOKEN_PRAGMA 8\n" +".emtcode TOKEN_EXTENSION 9\n" +".emtcode TOKEN_LINE 10\n" +".emtcode PARAM_END 0\n" +".emtcode PARAM_PARAMETER 1\n" +".emtcode BEHAVIOR_REQUIRE 1\n" +".emtcode BEHAVIOR_ENABLE 2\n" +".emtcode BEHAVIOR_WARN 3\n" +".emtcode BEHAVIOR_DISABLE 4\n" +".emtcode PRAGMA_NO_PARAM 0\n" +".emtcode PRAGMA_PARAM 1\n" +"source\n" +" optional_directive .and .loop source_element .and '\\0' .emit ESCAPE_TOKEN .emit TOKEN_END;\n" +"source_element\n" +" c_style_comment_block .or cpp_style_comment_block .or new_line_directive .or source_token;\n" +"c_style_comment_block\n" +" '/' .and '*' .and c_style_comment_rest .and .true .emit ' ';\n" +"c_style_comment_rest\n" +" .loop c_style_comment_body .and c_style_comment_end;\n" +"c_style_comment_body\n" +" c_style_comment_char_nostar .or c_style_comment_char_star_noslashstar;\n" +"c_style_comment_char_nostar\n" +" new_line .or '\\x2B'-'\\xFF' .or '\\x01'-'\\x29';\n" +"c_style_comment_char_star_noslashstar\n" +" '*' .and c_style_comment_char_star_noslashstar_1;\n" +"c_style_comment_char_star_noslashstar_1\n" +" c_style_comment_char_noslashstar .or c_style_comment_char_star_noslashstar;\n" +"c_style_comment_char_noslashstar\n" +" new_line .or '\\x30'-'\\xFF' .or '\\x01'-'\\x29' .or '\\x2B'-'\\x2E';\n" +"c_style_comment_end\n" +" '*' .and .loop c_style_comment_char_star .and '/';\n" +"c_style_comment_char_star\n" +" '*';\n" +"cpp_style_comment_block\n" +" '/' .and '/' .and cpp_style_comment_block_1;\n" +"cpp_style_comment_block_1\n" +" cpp_style_comment_block_2 .or cpp_style_comment_block_3;\n" +"cpp_style_comment_block_2\n" +" .loop cpp_style_comment_char .and new_line_directive;\n" +"cpp_style_comment_block_3\n" +" .loop cpp_style_comment_char;\n" +"cpp_style_comment_char\n" +" '\\x0E'-'\\xFF' .or '\\x01'-'\\x09' .or '\\x0B'-'\\x0C';\n" +"new_line_directive\n" +" new_line .and optional_directive;\n" +"new_line\n" +" generic_new_line .emit '\\n';\n" +"generic_new_line\n" +" carriage_return_line_feed .or line_feed_carriage_return .or '\\n' .or '\\r';\n" +"carriage_return_line_feed\n" +" '\\r' .and '\\n';\n" +"line_feed_carriage_return\n" +" '\\n' .and '\\r';\n" +"optional_directive\n" +" directive .emit ESCAPE_TOKEN .or .true;\n" +"directive\n" +" dir_define .emit TOKEN_DEFINE .or\n" +" dir_undef .emit TOKEN_UNDEF .or\n" +" dir_if .emit TOKEN_IF .or\n" +" dir_ifdef .emit TOKEN_IF .emit 'd' .emit 'e' .emit 'f' .emit 'i' .emit 'n' .emit 'e' .emit 'd'\n" +" .emit ' ' .or\n" +" dir_ifndef .emit TOKEN_IF .emit '!' .emit 'd' .emit 'e' .emit 'f' .emit 'i' .emit 'n' .emit 'e'\n" +" .emit 'd' .emit ' ' .or\n" +" dir_else .emit TOKEN_ELSE .or\n" +" dir_elif .emit TOKEN_ELIF .or\n" +" dir_endif .emit TOKEN_ENDIF .or\n" +" dir_ext .emit TOKEN_EXTENSION .or\n" +" dir_pragma .emit TOKEN_PRAGMA .or\n" +" dir_line .emit TOKEN_LINE;\n" +"dir_define\n" +" optional_space .and '#' .and optional_space .and \"define\" .and symbol .and opt_parameters .and\n" +" definition;\n" +"dir_undef\n" +" optional_space .and '#' .and optional_space .and \"undef\" .and symbol;\n" +"dir_if\n" +" optional_space .and '#' .and optional_space .and \"if\" .and expression;\n" +"dir_ifdef\n" +" optional_space .and '#' .and optional_space .and \"ifdef\" .and symbol;\n" +"dir_ifndef\n" +" optional_space .and '#' .and optional_space .and \"ifndef\" .and symbol;\n" +"dir_else\n" +" optional_space .and '#' .and optional_space .and \"else\";\n" +"dir_elif\n" +" optional_space .and '#' .and optional_space .and \"elif\" .and expression;\n" +"dir_endif\n" +" optional_space .and '#' .and optional_space .and \"endif\";\n" +"dir_ext\n" +" optional_space .and '#' .and optional_space .and \"extension\" .and space .and extension_name .and\n" +" optional_space .and ':' .and optional_space .and extension_behavior;\n" +"dir_line\n" +" optional_space .and '#' .and optional_space .and \"line\" .and expression;\n" +"dir_pragma\n" +" optional_space .and '#' .and optional_space .and \"pragma\" .and symbol .and opt_pragma_param;\n" +"opt_pragma_param\n" +" pragma_param .or .true .emit PRAGMA_NO_PARAM;\n" +"pragma_param\n" +" optional_space .and '(' .emit PRAGMA_PARAM .and optional_space .and symbol_no_space .and optional_space .and ')';\n" +"symbol_no_space\n" +" symbol_character .emit * .and .loop symbol_character2 .emit * .and .true .emit '\\0';\n" +"symbol\n" +" space .and symbol_character .emit * .and .loop symbol_character2 .emit * .and .true .emit '\\0';\n" +"opt_parameters\n" +" parameters .or .true .emit PARAM_END;\n" +"parameters\n" +" '(' .and parameters_1 .and optional_space .and ')' .emit PARAM_END;\n" +"parameters_1\n" +" parameters_2 .or .true;\n" +"parameters_2\n" +" parameter .emit PARAM_PARAMETER .and .loop parameters_3;\n" +"parameters_3\n" +" optional_space .and ',' .and parameter .emit PARAM_PARAMETER;\n" +"parameter\n" +" optional_space .and symbol_character .emit * .and .loop symbol_character2 .emit * .and\n" +" .true .emit '\\0';\n" +"definition\n" +" .loop definition_character .emit * .and .true .emit '\\0';\n" +"definition_character\n" +" '\\x0E'-'\\xFF' .or '\\x01'-'\\x09' .or '\\x0B'-'\\x0C';\n" +"expression\n" +" expression_element .and .loop expression_element .and .true .emit '\\0';\n" +"expression_element\n" +" expression_character .emit *;\n" +"expression_character\n" +" '\\x0E'-'\\xFF' .or '\\x01'-'\\x09' .or '\\x0B'-'\\x0C';\n" +"extension_name\n" +" symbol_character .emit * .and .loop symbol_character2 .emit * .and .true .emit '\\0';\n" +"extension_behavior\n" +" \"require\" .emit BEHAVIOR_REQUIRE .or\n" +" \"enable\" .emit BEHAVIOR_ENABLE .or\n" +" \"warn\" .emit BEHAVIOR_WARN .or\n" +" \"disable\" .emit BEHAVIOR_DISABLE;\n" +"optional_space\n" +" .loop single_space;\n" +"space\n" +" single_space .and .loop single_space;\n" +"single_space\n" +" ' ' .or '\\t';\n" +"source_token\n" +" space .emit ' ' .or complex_token .or source_token_1;\n" +"source_token_1\n" +" simple_token .emit ' ' .and .true .emit ' ';\n" +"complex_token\n" +" identifier .or number;\n" +"simple_token\n" +" increment .or decrement .or lequal .or gequal .or equal .or nequal .or and .or xor .or or .or\n" +" addto .or subtractfrom .or multiplyto .or divideto .or other;\n" +"identifier\n" +" identifier_char1 .emit * .and .loop identifier_char2 .emit *;\n" +"identifier_char1\n" +" 'a'-'z' .or 'A'-'Z' .or '_';\n" +"identifier_char2\n" +" 'a'-'z' .or 'A'-'Z' .or '0'-'9' .or '_';\n" +"number\n" +" float .or integer;\n" +"digit_oct\n" +" '0'-'7';\n" +"digit_dec\n" +" '0'-'9';\n" +"digit_hex\n" +" '0'-'9' .or 'A'-'F' .or 'a'-'f';\n" +"float\n" +" float_1 .or float_2;\n" +"float_1\n" +" float_fractional_constant .and float_optional_exponent_part;\n" +"float_2\n" +" float_digit_sequence .and float_exponent_part;\n" +"float_fractional_constant\n" +" float_fractional_constant_1 .or float_fractional_constant_2 .or float_fractional_constant_3;\n" +"float_fractional_constant_1\n" +" float_digit_sequence .and '.' .emit '.' .and float_digit_sequence;\n" +"float_fractional_constant_2\n" +" float_digit_sequence .and '.' .emit '.';\n" +"float_fractional_constant_3\n" +" '.' .emit '.' .and float_digit_sequence;\n" +"float_optional_exponent_part\n" +" float_exponent_part .or .true;\n" +"float_digit_sequence\n" +" digit_dec .emit * .and .loop digit_dec .emit *;\n" +"float_exponent_part\n" +" float_exponent_part_1 .or float_exponent_part_2;\n" +"float_exponent_part_1\n" +" 'e' .emit 'e' .and float_optional_sign .and float_digit_sequence;\n" +"float_exponent_part_2\n" +" 'E' .emit 'E' .and float_optional_sign .and float_digit_sequence;\n" +"float_optional_sign\n" +" '+' .emit '+' .or '-' .emit '-' .or .true;\n" +"integer\n" +" integer_hex .or integer_oct .or integer_dec;\n" +"integer_hex\n" +" '0' .emit '0' .and integer_hex_1 .emit * .and digit_hex .emit * .and\n" +" .loop digit_hex .emit *;\n" +"integer_hex_1\n" +" 'x' .or 'X';\n" +"integer_oct\n" +" '0' .emit '0' .and .loop digit_oct .emit *;\n" +"integer_dec\n" +" digit_dec .emit * .and .loop digit_dec .emit *;\n" +"increment\n" +" '+' .emit * .and '+' .emit *;\n" +"decrement\n" +" '-' .emit * .and '-' .emit *;\n" +"lequal\n" +" '<' .emit * .and '=' .emit *;\n" +"gequal\n" +" '>' .emit * .and '=' .emit *;\n" +"equal\n" +" '=' .emit * .and '=' .emit *;\n" +"nequal\n" +" '!' .emit * .and '=' .emit *;\n" +"and\n" +" '&' .emit * .and '&' .emit *;\n" +"xor\n" +" '^' .emit * .and '^' .emit *;\n" +"or\n" +" '|' .emit * .and '|' .emit *;\n" +"addto\n" +" '+' .emit * .and '=' .emit *;\n" +"subtractfrom\n" +" '-' .emit * .and '=' .emit *;\n" +"multiplyto\n" +" '*' .emit * .and '=' .emit *;\n" +"divideto\n" +" '/' .emit * .and '=' .emit *;\n" +"other\n" +" '\\x24'-'\\xFF' .emit * .or '\\x01'-'\\x22' .emit *;\n" +"symbol_character\n" +" 'A'-'Z' .or 'a'-'z' .or '_';\n" +"symbol_character2\n" +" 'A'-'Z' .or 'a'-'z' .or '0'-'9' .or '_';\n" +".string string_lexer;\n" +"string_lexer\n" +" lex_first_identifier_character .and .loop lex_next_identifier_character;\n" +"lex_first_identifier_character\n" +" 'a'-'z' .or 'A'-'Z' .or '_';\n" +"lex_next_identifier_character\n" +" 'a'-'z' .or 'A'-'Z' .or '0'-'9' .or '_';\n" +"" diff --git a/mesalib/src/mesa/shader/slang/library/slang_pp_expression.syn b/mesalib/src/mesa/shader/slang/library/slang_pp_expression.syn new file mode 100644 index 000000000..bfdb220bf --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_pp_expression.syn @@ -0,0 +1,265 @@ +/* + * Mesa 3-D graphics library + * Version: 6.6 + * + * Copyright (C) 2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_pp_expression.syn + * slang preprocessor expression parser + * \author Michal Krol + */ + +/* + * Parses one or two (optional) expressions on literal integer constants. Those expressions come + * from #if #elif and #line directives. The preprocessor already parsed those directives and + * expanded the expression (expressions). All occurences of the operator "defined" are already + * replaced with either "0" or "1" literals. + */ + +.syntax expression; + +/* + * Those separate individual expressions. + * For #if/#elif case it is: EXP_EXPRESSION ... EXP_END + * For #line case it may be: EXP_EXPRESSION ... EXP_EXPRESSION ... EXP_END + */ +.emtcode EXP_END 0 +.emtcode EXP_EXPRESSION 1 + +.emtcode OP_END 0 +.emtcode OP_PUSHINT 1 +.emtcode OP_LOGICALOR 2 +.emtcode OP_LOGICALAND 3 +.emtcode OP_OR 4 +.emtcode OP_XOR 5 +.emtcode OP_AND 6 +.emtcode OP_EQUAL 7 +.emtcode OP_NOTEQUAL 8 +.emtcode OP_LESSEQUAL 9 +.emtcode OP_GREATEREQUAL 10 +.emtcode OP_LESS 11 +.emtcode OP_GREATER 12 +.emtcode OP_LEFTSHIFT 13 +.emtcode OP_RIGHTSHIFT 14 +.emtcode OP_ADD 15 +.emtcode OP_SUBTRACT 16 +.emtcode OP_MULTIPLY 17 +.emtcode OP_DIVIDE 18 +.emtcode OP_MODULUS 19 +.emtcode OP_PLUS 20 +.emtcode OP_MINUS 21 +.emtcode OP_NEGATE 22 +.emtcode OP_COMPLEMENT 23 + +expression + first_expression .and optional_second_expression .and optional_space .and '\0' .emit EXP_END; + +first_expression + optional_space .and logical_or_expression .emit EXP_EXPRESSION .and .true .emit OP_END; + +optional_second_expression + second_expression .or .true; + +second_expression + space .and logical_or_expression .emit EXP_EXPRESSION .and .true .emit OP_END; + +logical_or_expression + logical_and_expression .and .loop logical_or_expression_1; +logical_or_expression_1 + barbar .and logical_and_expression .and .true .emit OP_LOGICALOR; + +logical_and_expression + or_expression .and .loop logical_and_expression_1; +logical_and_expression_1 + ampersandampersand .and or_expression .and .true .emit OP_LOGICALAND; + +or_expression + xor_expression .and .loop or_expression_1; +or_expression_1 + bar .and xor_expression .and .true .emit OP_OR; + +xor_expression + and_expression .and .loop xor_expression_1; +xor_expression_1 + caret .and and_expression .and .true .emit OP_XOR; + +and_expression + equality_expression .and .loop and_expression_1; +and_expression_1 + ampersand .and equality_expression .and .true .emit OP_AND; + +equality_expression + relational_expression .and .loop equality_expression_1; +equality_expression_1 + equality_expression_2 .or equality_expression_3; +equality_expression_2 + equalsequals .and relational_expression .and .true .emit OP_EQUAL; +equality_expression_3 + bangequals .and relational_expression .and .true .emit OP_NOTEQUAL; + +relational_expression + shift_expression .and .loop relational_expression_1; +relational_expression_1 + relational_expression_2 .or relational_expression_3 .or relational_expression_4 .or + relational_expression_5; +relational_expression_2 + lessequals .and shift_expression .and .true .emit OP_LESSEQUAL; +relational_expression_3 + greaterequals .and shift_expression .and .true .emit OP_GREATEREQUAL; +relational_expression_4 + less .and shift_expression .and .true .emit OP_LESS; +relational_expression_5 + greater .and shift_expression .and .true .emit OP_GREATER; + +shift_expression + additive_expression .and .loop shift_expression_1; +shift_expression_1 + shift_expression_2 .or shift_expression_3; +shift_expression_2 + lessless .and additive_expression .and .true .emit OP_LEFTSHIFT; +shift_expression_3 + greatergreater .and additive_expression .and .true .emit OP_RIGHTSHIFT; + +additive_expression + multiplicative_expression .and .loop additive_expression_1; +additive_expression_1 + additive_expression_2 .or additive_expression_3; +additive_expression_2 + plus .and multiplicative_expression .and .true .emit OP_ADD; +additive_expression_3 + dash .and multiplicative_expression .and .true .emit OP_SUBTRACT; + +multiplicative_expression + unary_expression .and .loop multiplicative_expression_1; +multiplicative_expression_1 + multiplicative_expression_2 .or multiplicative_expression_3 .or multiplicative_expression_4; +multiplicative_expression_2 + star .and unary_expression .and .true .emit OP_MULTIPLY; +multiplicative_expression_3 + slash .and unary_expression .and .true .emit OP_DIVIDE; +multiplicative_expression_4 + percent .and unary_expression .and .true .emit OP_MODULUS; + +unary_expression + primary_expression .or unary_expression_1 .or unary_expression_2 .or unary_expression_3 .or + unary_expression_4; +unary_expression_1 + plus .and unary_expression .and .true .emit OP_PLUS; +unary_expression_2 + dash .and unary_expression .and .true .emit OP_MINUS; +unary_expression_3 + bang .and unary_expression .and .true .emit OP_NEGATE; +unary_expression_4 + tilda .and unary_expression .and .true .emit OP_COMPLEMENT; + +primary_expression + intconstant .or primary_expression_1; +primary_expression_1 + lparen .and logical_or_expression .and rparen; + +intconstant + integer .emit OP_PUSHINT; + +integer + integer_dec; + +integer_dec + digit_dec .emit 10 .emit * .and .loop digit_dec .emit * .and .true .emit '\0'; + +digit_dec + '0'-'9'; + +optional_space + .loop single_space; + +space + single_space .and .loop single_space; + +single_space + ' ' .or '\t'; + +ampersand + optional_space .and '&' .and optional_space; + +ampersandampersand + optional_space .and '&' .and '&' .and optional_space; + +bang + optional_space .and '!' .and optional_space; + +bangequals + optional_space .and '!' .and '=' .and optional_space; + +bar + optional_space .and '|' .and optional_space; + +barbar + optional_space .and '|' .and '|' .and optional_space; + +caret + optional_space .and '^' .and optional_space; + +dash + optional_space .and '-' .and optional_space; + +equalsequals + optional_space .and '=' .and '=' .and optional_space; + +greater + optional_space .and '>' .and optional_space; + +greaterequals + optional_space .and '>' .and '=' .and optional_space; + +greatergreater + optional_space .and '>' .and '>' .and optional_space; + +less + optional_space .and '<' .and optional_space; + +lessequals + optional_space .and '<' .and '=' .and optional_space; + +lessless + optional_space .and '<' .and '<' .and optional_space; + +lparen + optional_space .and '(' .and optional_space; + +percent + optional_space .and '%' .and optional_space; + +plus + optional_space .and '+' .and optional_space; + +rparen + optional_space .and ')' .and optional_space; + +slash + optional_space .and '/' .and optional_space; + +star + optional_space .and '*' .and optional_space; + +tilda + optional_space .and '~' .and optional_space; + diff --git a/mesalib/src/mesa/shader/slang/library/slang_pp_expression_syn.h b/mesalib/src/mesa/shader/slang/library/slang_pp_expression_syn.h new file mode 100644 index 000000000..f3e9ef6b2 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_pp_expression_syn.h @@ -0,0 +1,179 @@ + +/* DO NOT EDIT - THIS FILE IS AUTOMATICALLY GENERATED FROM THE .syn FILE */ + +".syntax expression;\n" +".emtcode EXP_END 0\n" +".emtcode EXP_EXPRESSION 1\n" +".emtcode OP_END 0\n" +".emtcode OP_PUSHINT 1\n" +".emtcode OP_LOGICALOR 2\n" +".emtcode OP_LOGICALAND 3\n" +".emtcode OP_OR 4\n" +".emtcode OP_XOR 5\n" +".emtcode OP_AND 6\n" +".emtcode OP_EQUAL 7\n" +".emtcode OP_NOTEQUAL 8\n" +".emtcode OP_LESSEQUAL 9\n" +".emtcode OP_GREATEREQUAL 10\n" +".emtcode OP_LESS 11\n" +".emtcode OP_GREATER 12\n" +".emtcode OP_LEFTSHIFT 13\n" +".emtcode OP_RIGHTSHIFT 14\n" +".emtcode OP_ADD 15\n" +".emtcode OP_SUBTRACT 16\n" +".emtcode OP_MULTIPLY 17\n" +".emtcode OP_DIVIDE 18\n" +".emtcode OP_MODULUS 19\n" +".emtcode OP_PLUS 20\n" +".emtcode OP_MINUS 21\n" +".emtcode OP_NEGATE 22\n" +".emtcode OP_COMPLEMENT 23\n" +"expression\n" +" first_expression .and optional_second_expression .and optional_space .and '\\0' .emit EXP_END;\n" +"first_expression\n" +" optional_space .and logical_or_expression .emit EXP_EXPRESSION .and .true .emit OP_END;\n" +"optional_second_expression\n" +" second_expression .or .true;\n" +"second_expression\n" +" space .and logical_or_expression .emit EXP_EXPRESSION .and .true .emit OP_END;\n" +"logical_or_expression\n" +" logical_and_expression .and .loop logical_or_expression_1;\n" +"logical_or_expression_1\n" +" barbar .and logical_and_expression .and .true .emit OP_LOGICALOR;\n" +"logical_and_expression\n" +" or_expression .and .loop logical_and_expression_1;\n" +"logical_and_expression_1\n" +" ampersandampersand .and or_expression .and .true .emit OP_LOGICALAND;\n" +"or_expression\n" +" xor_expression .and .loop or_expression_1;\n" +"or_expression_1\n" +" bar .and xor_expression .and .true .emit OP_OR;\n" +"xor_expression\n" +" and_expression .and .loop xor_expression_1;\n" +"xor_expression_1\n" +" caret .and and_expression .and .true .emit OP_XOR;\n" +"and_expression\n" +" equality_expression .and .loop and_expression_1;\n" +"and_expression_1\n" +" ampersand .and equality_expression .and .true .emit OP_AND;\n" +"equality_expression\n" +" relational_expression .and .loop equality_expression_1;\n" +"equality_expression_1\n" +" equality_expression_2 .or equality_expression_3;\n" +"equality_expression_2\n" +" equalsequals .and relational_expression .and .true .emit OP_EQUAL;\n" +"equality_expression_3\n" +" bangequals .and relational_expression .and .true .emit OP_NOTEQUAL;\n" +"relational_expression\n" +" shift_expression .and .loop relational_expression_1;\n" +"relational_expression_1\n" +" relational_expression_2 .or relational_expression_3 .or relational_expression_4 .or\n" +" relational_expression_5;\n" +"relational_expression_2\n" +" lessequals .and shift_expression .and .true .emit OP_LESSEQUAL;\n" +"relational_expression_3\n" +" greaterequals .and shift_expression .and .true .emit OP_GREATEREQUAL;\n" +"relational_expression_4\n" +" less .and shift_expression .and .true .emit OP_LESS;\n" +"relational_expression_5\n" +" greater .and shift_expression .and .true .emit OP_GREATER;\n" +"shift_expression\n" +" additive_expression .and .loop shift_expression_1;\n" +"shift_expression_1\n" +" shift_expression_2 .or shift_expression_3;\n" +"shift_expression_2\n" +" lessless .and additive_expression .and .true .emit OP_LEFTSHIFT;\n" +"shift_expression_3\n" +" greatergreater .and additive_expression .and .true .emit OP_RIGHTSHIFT;\n" +"additive_expression\n" +" multiplicative_expression .and .loop additive_expression_1;\n" +"additive_expression_1\n" +" additive_expression_2 .or additive_expression_3;\n" +"additive_expression_2\n" +" plus .and multiplicative_expression .and .true .emit OP_ADD;\n" +"additive_expression_3\n" +" dash .and multiplicative_expression .and .true .emit OP_SUBTRACT;\n" +"multiplicative_expression\n" +" unary_expression .and .loop multiplicative_expression_1;\n" +"multiplicative_expression_1\n" +" multiplicative_expression_2 .or multiplicative_expression_3 .or multiplicative_expression_4;\n" +"multiplicative_expression_2\n" +" star .and unary_expression .and .true .emit OP_MULTIPLY;\n" +"multiplicative_expression_3\n" +" slash .and unary_expression .and .true .emit OP_DIVIDE;\n" +"multiplicative_expression_4\n" +" percent .and unary_expression .and .true .emit OP_MODULUS;\n" +"unary_expression\n" +" primary_expression .or unary_expression_1 .or unary_expression_2 .or unary_expression_3 .or\n" +" unary_expression_4;\n" +"unary_expression_1\n" +" plus .and unary_expression .and .true .emit OP_PLUS;\n" +"unary_expression_2\n" +" dash .and unary_expression .and .true .emit OP_MINUS;\n" +"unary_expression_3\n" +" bang .and unary_expression .and .true .emit OP_NEGATE;\n" +"unary_expression_4\n" +" tilda .and unary_expression .and .true .emit OP_COMPLEMENT;\n" +"primary_expression\n" +" intconstant .or primary_expression_1;\n" +"primary_expression_1\n" +" lparen .and logical_or_expression .and rparen;\n" +"intconstant\n" +" integer .emit OP_PUSHINT;\n" +"integer\n" +" integer_dec;\n" +"integer_dec\n" +" digit_dec .emit 10 .emit * .and .loop digit_dec .emit * .and .true .emit '\\0';\n" +"digit_dec\n" +" '0'-'9';\n" +"optional_space\n" +" .loop single_space;\n" +"space\n" +" single_space .and .loop single_space;\n" +"single_space\n" +" ' ' .or '\\t';\n" +"ampersand\n" +" optional_space .and '&' .and optional_space;\n" +"ampersandampersand\n" +" optional_space .and '&' .and '&' .and optional_space;\n" +"bang\n" +" optional_space .and '!' .and optional_space;\n" +"bangequals\n" +" optional_space .and '!' .and '=' .and optional_space;\n" +"bar\n" +" optional_space .and '|' .and optional_space;\n" +"barbar\n" +" optional_space .and '|' .and '|' .and optional_space;\n" +"caret\n" +" optional_space .and '^' .and optional_space;\n" +"dash\n" +" optional_space .and '-' .and optional_space;\n" +"equalsequals\n" +" optional_space .and '=' .and '=' .and optional_space;\n" +"greater\n" +" optional_space .and '>' .and optional_space;\n" +"greaterequals\n" +" optional_space .and '>' .and '=' .and optional_space;\n" +"greatergreater\n" +" optional_space .and '>' .and '>' .and optional_space;\n" +"less\n" +" optional_space .and '<' .and optional_space;\n" +"lessequals\n" +" optional_space .and '<' .and '=' .and optional_space;\n" +"lessless\n" +" optional_space .and '<' .and '<' .and optional_space;\n" +"lparen\n" +" optional_space .and '(' .and optional_space;\n" +"percent\n" +" optional_space .and '%' .and optional_space;\n" +"plus\n" +" optional_space .and '+' .and optional_space;\n" +"rparen\n" +" optional_space .and ')' .and optional_space;\n" +"slash\n" +" optional_space .and '/' .and optional_space;\n" +"star\n" +" optional_space .and '*' .and optional_space;\n" +"tilda\n" +" optional_space .and '~' .and optional_space;\n" +"" diff --git a/mesalib/src/mesa/shader/slang/library/slang_pp_version.syn b/mesalib/src/mesa/shader/slang/library/slang_pp_version.syn new file mode 100644 index 000000000..3fe1a57ba --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_pp_version.syn @@ -0,0 +1,122 @@ +/* + * Mesa 3-D graphics library + * Version: 6.6 + * + * Copyright (C) 2005-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_pp_version.syn + * slang #version directive syntax + * \author Michal Krol + */ + +.syntax version_directive; + +version_directive + version_directive_1; +version_directive_1 + prior_optional_spaces .and optional_version_directive .and .true .emit $; + +optional_version_directive + version_directive_body .or .true .emit 10 .emit 1; + +version_directive_body + '#' .and optional_space .and "version" .and space .and version_number .and optional_space .and + new_line; + +version_number + version_number_100 .or version_number_110 .or version_number_120; + +version_number_100 + leading_zeroes .and "100" .emit 0 .emit 1; + +version_number_110 + leading_zeroes .and "110" .emit 10 .emit 1; + +version_number_120 + leading_zeroes .and "120" .emit 20 .emit 1; + +leading_zeroes + .loop zero; + +zero + '0'; + +space + single_space .and .loop single_space; + +optional_space + .loop single_space; + +single_space + ' ' .or '\t'; + +prior_optional_spaces + .loop prior_space; + +prior_space + c_style_comment_block .or cpp_style_comment_block .or space .or new_line; + +c_style_comment_block + '/' .and '*' .and c_style_comment_rest; + +c_style_comment_rest + .loop c_style_comment_char_no_star .and c_style_comment_rest_1; +c_style_comment_rest_1 + c_style_comment_end .or c_style_comment_rest_2; +c_style_comment_rest_2 + '*' .and c_style_comment_rest; + +c_style_comment_char_no_star + '\x2B'-'\xFF' .or '\x01'-'\x29'; + +c_style_comment_end + '*' .and '/'; + +cpp_style_comment_block + '/' .and '/' .and cpp_style_comment_block_1; +cpp_style_comment_block_1 + cpp_style_comment_block_2 .or cpp_style_comment_block_3; +cpp_style_comment_block_2 + .loop cpp_style_comment_char .and new_line; +cpp_style_comment_block_3 + .loop cpp_style_comment_char; + +cpp_style_comment_char + '\x0E'-'\xFF' .or '\x01'-'\x09' .or '\x0B'-'\x0C'; + +new_line + cr_lf .or lf_cr .or '\n' .or '\r'; + +cr_lf + '\r' .and '\n'; + +lf_cr + '\n' .and '\r'; + +.string __string_filter; + +__string_filter + .loop __identifier_char; + +__identifier_char + 'a'-'z' .or 'A'-'Z' .or '_' .or '0'-'9'; + diff --git a/mesalib/src/mesa/shader/slang/library/slang_pp_version_syn.h b/mesalib/src/mesa/shader/slang/library/slang_pp_version_syn.h new file mode 100644 index 000000000..54aee3ff2 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_pp_version_syn.h @@ -0,0 +1,69 @@ + +/* DO NOT EDIT - THIS FILE IS AUTOMATICALLY GENERATED FROM THE .syn FILE */ + +".syntax version_directive;\n" +"version_directive\n" +" version_directive_1;\n" +"version_directive_1\n" +" prior_optional_spaces .and optional_version_directive .and .true .emit $;\n" +"optional_version_directive\n" +" version_directive_body .or .true .emit 10 .emit 1;\n" +"version_directive_body\n" +" '#' .and optional_space .and \"version\" .and space .and version_number .and optional_space .and\n" +" new_line;\n" +"version_number\n" +" version_number_100 .or version_number_110 .or version_number_120;\n" +"version_number_100\n" +" leading_zeroes .and \"100\" .emit 0 .emit 1;\n" +"version_number_110\n" +" leading_zeroes .and \"110\" .emit 10 .emit 1;\n" +"version_number_120\n" +" leading_zeroes .and \"120\" .emit 20 .emit 1;\n" +"leading_zeroes\n" +" .loop zero;\n" +"zero\n" +" '0';\n" +"space\n" +" single_space .and .loop single_space;\n" +"optional_space\n" +" .loop single_space;\n" +"single_space\n" +" ' ' .or '\\t';\n" +"prior_optional_spaces\n" +" .loop prior_space;\n" +"prior_space\n" +" c_style_comment_block .or cpp_style_comment_block .or space .or new_line;\n" +"c_style_comment_block\n" +" '/' .and '*' .and c_style_comment_rest;\n" +"c_style_comment_rest\n" +" .loop c_style_comment_char_no_star .and c_style_comment_rest_1;\n" +"c_style_comment_rest_1\n" +" c_style_comment_end .or c_style_comment_rest_2;\n" +"c_style_comment_rest_2\n" +" '*' .and c_style_comment_rest;\n" +"c_style_comment_char_no_star\n" +" '\\x2B'-'\\xFF' .or '\\x01'-'\\x29';\n" +"c_style_comment_end\n" +" '*' .and '/';\n" +"cpp_style_comment_block\n" +" '/' .and '/' .and cpp_style_comment_block_1;\n" +"cpp_style_comment_block_1\n" +" cpp_style_comment_block_2 .or cpp_style_comment_block_3;\n" +"cpp_style_comment_block_2\n" +" .loop cpp_style_comment_char .and new_line;\n" +"cpp_style_comment_block_3\n" +" .loop cpp_style_comment_char;\n" +"cpp_style_comment_char\n" +" '\\x0E'-'\\xFF' .or '\\x01'-'\\x09' .or '\\x0B'-'\\x0C';\n" +"new_line\n" +" cr_lf .or lf_cr .or '\\n' .or '\\r';\n" +"cr_lf\n" +" '\\r' .and '\\n';\n" +"lf_cr\n" +" '\\n' .and '\\r';\n" +".string __string_filter;\n" +"__string_filter\n" +" .loop __identifier_char;\n" +"__identifier_char\n" +" 'a'-'z' .or 'A'-'Z' .or '_' .or '0'-'9';\n" +"" diff --git a/mesalib/src/mesa/shader/slang/library/slang_shader.syn b/mesalib/src/mesa/shader/slang/library/slang_shader.syn new file mode 100644 index 000000000..cc5c70a02 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_shader.syn @@ -0,0 +1,1716 @@ +/* + * Mesa 3-D graphics library + * + * Copyright (C) 2004-2006 Brian Paul All Rights Reserved. + * Copyright (C) 2008 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * \file slang_shader.syn + * slang vertex/fragment shader syntax + * \author Michal Krol + */ + +/* + * usage: + * syn2c slang_shader.syn > slang_shader_syn.h + * + * when modifying or extending this file, several things must be taken into + * consideration: + * + * - when adding new operators that were marked as reserved in the + * initial specification, one must only uncomment particular lines of + * code that refer to operators being added; + * + * - when adding new shader targets, one must reserve a new value for + * shader_type register and use it in .if constructs for symbols that + * are exclusive for that shader; + * + * - some symbols mimic output of other symbols - the best example is + * the "for" construct: expression "for (foo(); ; bar())" is seen as + * "for (foo(); true; bar())" by the output processor - hence, special + * care must be taken when rearranging output of essential symbols; + * + * - order of single-quoted tokens does matter in alternatives - so do not + * parse "<" operator before "<<" and "<<" before "<<="; + * + * - all double-quoted tokens are internally preprocessed to eliminate + * problems with parsing strings that are prefixes of other strings, + * like "sampler1D" and "sampler1DShadow"; + */ + +.syntax translation_unit; + +/* revision number - increment after each change affecting emitted output */ +.emtcode REVISION 5 + +/* external declaration (or precision or invariant stmt) */ +.emtcode EXTERNAL_NULL 0 +.emtcode EXTERNAL_FUNCTION_DEFINITION 1 +.emtcode EXTERNAL_DECLARATION 2 +.emtcode DEFAULT_PRECISION 3 +.emtcode INVARIANT_STMT 4 + +/* precision */ +.emtcode PRECISION_DEFAULT 0 +.emtcode PRECISION_LOW 1 +.emtcode PRECISION_MEDIUM 2 +.emtcode PRECISION_HIGH 3 + +/* declaration */ +.emtcode DECLARATION_FUNCTION_PROTOTYPE 1 +.emtcode DECLARATION_INIT_DECLARATOR_LIST 2 + +/* function type */ +.emtcode FUNCTION_ORDINARY 0 +.emtcode FUNCTION_CONSTRUCTOR 1 +.emtcode FUNCTION_OPERATOR 2 + +/* function call type */ +.emtcode FUNCTION_CALL_NONARRAY 0 +.emtcode FUNCTION_CALL_ARRAY 1 + +/* operator type */ +.emtcode OPERATOR_ADDASSIGN 1 +.emtcode OPERATOR_SUBASSIGN 2 +.emtcode OPERATOR_MULASSIGN 3 +.emtcode OPERATOR_DIVASSIGN 4 +/*.emtcode OPERATOR_MODASSIGN 5*/ +/*.emtcode OPERATOR_LSHASSIGN 6*/ +/*.emtcode OPERATOR_RSHASSIGN 7*/ +/*.emtcode OPERATOR_ORASSIGN 8*/ +/*.emtcode OPERATOR_XORASSIGN 9*/ +/*.emtcode OPERATOR_ANDASSIGN 10*/ +.emtcode OPERATOR_LOGICALXOR 11 +/*.emtcode OPERATOR_BITOR 12*/ +/*.emtcode OPERATOR_BITXOR 13*/ +/*.emtcode OPERATOR_BITAND 14*/ +.emtcode OPERATOR_LESS 15 +.emtcode OPERATOR_GREATER 16 +.emtcode OPERATOR_LESSEQUAL 17 +.emtcode OPERATOR_GREATEREQUAL 18 +/*.emtcode OPERATOR_LSHIFT 19*/ +/*.emtcode OPERATOR_RSHIFT 20*/ +.emtcode OPERATOR_MULTIPLY 21 +.emtcode OPERATOR_DIVIDE 22 +/*.emtcode OPERATOR_MODULUS 23*/ +.emtcode OPERATOR_INCREMENT 24 +.emtcode OPERATOR_DECREMENT 25 +.emtcode OPERATOR_PLUS 26 +.emtcode OPERATOR_MINUS 27 +/*.emtcode OPERATOR_COMPLEMENT 28*/ +.emtcode OPERATOR_NOT 29 + +/* init declarator list */ +.emtcode DECLARATOR_NONE 0 +.emtcode DECLARATOR_NEXT 1 + +/* variable declaration */ +.emtcode VARIABLE_NONE 0 +.emtcode VARIABLE_IDENTIFIER 1 +.emtcode VARIABLE_INITIALIZER 2 +.emtcode VARIABLE_ARRAY_EXPLICIT 3 +.emtcode VARIABLE_ARRAY_UNKNOWN 4 + +/* type qualifier */ +.emtcode TYPE_QUALIFIER_NONE 0 +.emtcode TYPE_QUALIFIER_CONST 1 +.emtcode TYPE_QUALIFIER_ATTRIBUTE 2 +.emtcode TYPE_QUALIFIER_VARYING 3 +.emtcode TYPE_QUALIFIER_UNIFORM 4 +.emtcode TYPE_QUALIFIER_FIXEDOUTPUT 5 +.emtcode TYPE_QUALIFIER_FIXEDINPUT 6 + +/* invariant qualifier */ +.emtcode TYPE_VARIANT 90 +.emtcode TYPE_INVARIANT 91 + +/* centroid qualifier */ +.emtcode TYPE_CENTER 95 +.emtcode TYPE_CENTROID 96 + +/* type specifier */ +.emtcode TYPE_SPECIFIER_VOID 0 +.emtcode TYPE_SPECIFIER_BOOL 1 +.emtcode TYPE_SPECIFIER_BVEC2 2 +.emtcode TYPE_SPECIFIER_BVEC3 3 +.emtcode TYPE_SPECIFIER_BVEC4 4 +.emtcode TYPE_SPECIFIER_INT 5 +.emtcode TYPE_SPECIFIER_IVEC2 6 +.emtcode TYPE_SPECIFIER_IVEC3 7 +.emtcode TYPE_SPECIFIER_IVEC4 8 +.emtcode TYPE_SPECIFIER_FLOAT 9 +.emtcode TYPE_SPECIFIER_VEC2 10 +.emtcode TYPE_SPECIFIER_VEC3 11 +.emtcode TYPE_SPECIFIER_VEC4 12 +.emtcode TYPE_SPECIFIER_MAT2 13 +.emtcode TYPE_SPECIFIER_MAT3 14 +.emtcode TYPE_SPECIFIER_MAT4 15 +.emtcode TYPE_SPECIFIER_SAMPLER1D 16 +.emtcode TYPE_SPECIFIER_SAMPLER2D 17 +.emtcode TYPE_SPECIFIER_SAMPLER3D 18 +.emtcode TYPE_SPECIFIER_SAMPLERCUBE 19 +.emtcode TYPE_SPECIFIER_SAMPLER1DSHADOW 20 +.emtcode TYPE_SPECIFIER_SAMPLER2DSHADOW 21 +.emtcode TYPE_SPECIFIER_SAMPLER2DRECT 22 +.emtcode TYPE_SPECIFIER_SAMPLER2DRECTSHADOW 23 +.emtcode TYPE_SPECIFIER_STRUCT 24 +.emtcode TYPE_SPECIFIER_TYPENAME 25 + +/* OpenGL 2.1 */ +.emtcode TYPE_SPECIFIER_MAT23 26 +.emtcode TYPE_SPECIFIER_MAT32 27 +.emtcode TYPE_SPECIFIER_MAT24 28 +.emtcode TYPE_SPECIFIER_MAT42 29 +.emtcode TYPE_SPECIFIER_MAT34 30 +.emtcode TYPE_SPECIFIER_MAT43 31 + +/* type specifier array */ +.emtcode TYPE_SPECIFIER_NONARRAY 0 +.emtcode TYPE_SPECIFIER_ARRAY 1 + +/* structure field */ +.emtcode FIELD_NONE 0 +.emtcode FIELD_NEXT 1 +.emtcode FIELD_ARRAY 2 + +/* operation */ +.emtcode OP_END 0 +.emtcode OP_BLOCK_BEGIN_NO_NEW_SCOPE 1 +.emtcode OP_BLOCK_BEGIN_NEW_SCOPE 2 +.emtcode OP_DECLARE 3 +.emtcode OP_ASM 4 +.emtcode OP_BREAK 5 +.emtcode OP_CONTINUE 6 +.emtcode OP_DISCARD 7 +.emtcode OP_RETURN 8 +.emtcode OP_EXPRESSION 9 +.emtcode OP_IF 10 +.emtcode OP_WHILE 11 +.emtcode OP_DO 12 +.emtcode OP_FOR 13 +.emtcode OP_PUSH_VOID 14 +.emtcode OP_PUSH_BOOL 15 +.emtcode OP_PUSH_INT 16 +.emtcode OP_PUSH_FLOAT 17 +.emtcode OP_PUSH_IDENTIFIER 18 +.emtcode OP_SEQUENCE 19 +.emtcode OP_ASSIGN 20 +.emtcode OP_ADDASSIGN 21 +.emtcode OP_SUBASSIGN 22 +.emtcode OP_MULASSIGN 23 +.emtcode OP_DIVASSIGN 24 +/*.emtcode OP_MODASSIGN 25*/ +/*.emtcode OP_LSHASSIGN 26*/ +/*.emtcode OP_RSHASSIGN 27*/ +/*.emtcode OP_ORASSIGN 28*/ +/*.emtcode OP_XORASSIGN 29*/ +/*.emtcode OP_ANDASSIGN 30*/ +.emtcode OP_SELECT 31 +.emtcode OP_LOGICALOR 32 +.emtcode OP_LOGICALXOR 33 +.emtcode OP_LOGICALAND 34 +/*.emtcode OP_BITOR 35*/ +/*.emtcode OP_BITXOR 36*/ +/*.emtcode OP_BITAND 37*/ +.emtcode OP_EQUAL 38 +.emtcode OP_NOTEQUAL 39 +.emtcode OP_LESS 40 +.emtcode OP_GREATER 41 +.emtcode OP_LESSEQUAL 42 +.emtcode OP_GREATEREQUAL 43 +/*.emtcode OP_LSHIFT 44*/ +/*.emtcode OP_RSHIFT 45*/ +.emtcode OP_ADD 46 +.emtcode OP_SUBTRACT 47 +.emtcode OP_MULTIPLY 48 +.emtcode OP_DIVIDE 49 +/*.emtcode OP_MODULUS 50*/ +.emtcode OP_PREINCREMENT 51 +.emtcode OP_PREDECREMENT 52 +.emtcode OP_PLUS 53 +.emtcode OP_MINUS 54 +/*.emtcode OP_COMPLEMENT 55*/ +.emtcode OP_NOT 56 +.emtcode OP_SUBSCRIPT 57 +.emtcode OP_CALL 58 +.emtcode OP_FIELD 59 +.emtcode OP_POSTINCREMENT 60 +.emtcode OP_POSTDECREMENT 61 +.emtcode OP_PRECISION 62 +.emtcode OP_METHOD 63 + +/* parameter qualifier */ +.emtcode PARAM_QUALIFIER_IN 0 +.emtcode PARAM_QUALIFIER_OUT 1 +.emtcode PARAM_QUALIFIER_INOUT 2 + +/* function parameter */ +.emtcode PARAMETER_NONE 0 +.emtcode PARAMETER_NEXT 1 + +/* function parameter array presence */ +.emtcode PARAMETER_ARRAY_NOT_PRESENT 0 +.emtcode PARAMETER_ARRAY_PRESENT 1 + +/* INVALID_EXTERNAL_DECLARATION seems to be reported when there's */ +/* any syntax errors... */ +.errtext INVALID_EXTERNAL_DECLARATION "2001: Syntax error." +.errtext INVALID_OPERATOR_OVERRIDE "2002: Invalid operator override." +.errtext LBRACE_EXPECTED "2003: '{' expected but '$err_token$' found." +.errtext LPAREN_EXPECTED "2004: '(' expected but '$err_token$' found." +.errtext RPAREN_EXPECTED "2005: ')' expected but '$err_token$' found." +.errtext INVALID_PRECISION "2006: Invalid precision specifier '$err_token$'." +.errtext INVALID_PRECISION_TYPE "2007: Invalid precision type '$err_token$'." + + +/* + * tells whether the shader that is being parsed is a built-in shader or not + * 0 - normal behaviour + * 1 - accepts constructor and operator definitions and __asm statements + * the implementation will set it to 1 when compiling internal built-in shaders + */ +.regbyte parsing_builtin 0 + +/* + * holds the type of the shader being parsed; possible values are + * listed below. + * FRAGMENT_SHADER 1 + * VERTEX_SHADER 2 + * shader type is set by the caller before parsing + */ +.regbyte shader_type 0 + +/* + * <variable_identifier> ::= <identifier> + */ +variable_identifier + identifier .emit OP_PUSH_IDENTIFIER; + +/* + * <primary_expression> ::= <variable_identifier> + * | <intconstant> + * | <floatconstant> + * | <boolconstant> + * | "(" <expression> ")" + */ +primary_expression + floatconstant .or boolconstant .or intconstant .or variable_identifier .or primary_expression_1; +primary_expression_1 + lparen .and expression .and rparen; + +/* + * <postfix_expression> ::= <primary_expression> + * | <postfix_expression> "[" <integer_expression> "]" + * | <function_call> + * | <postfix_expression> "." <field_selection> + * | <postfix_expression> "++" + * | <postfix_expression> "--" + */ +postfix_expression + postfix_expression_1 .and .loop postfix_expression_2; +postfix_expression_1 + function_call .or primary_expression; +postfix_expression_2 + postfix_expression_3 .or postfix_expression_4 .or + plusplus .emit OP_POSTINCREMENT .or + minusminus .emit OP_POSTDECREMENT; +postfix_expression_3 + lbracket .and integer_expression .and rbracket .emit OP_SUBSCRIPT; +postfix_expression_4 + dot .and field_selection .emit OP_FIELD; + +/* + * <integer_expression> ::= <expression> + */ +integer_expression + expression; + +/* + * <function_call> ::= <function_call_generic> + */ +function_call + function_call_or_method; + +/* + * <function_call_or_method> ::= <regular_function_call> + * | <postfix_expression> "." <function_call_generic> + */ +function_call_or_method + regular_function_call .or method_call; + +/* + * <method_call> ::= <identifier> "." <function_call_generic> + */ +method_call + identifier .emit OP_METHOD .and dot .and function_call_generic .and .true .emit OP_END; + +/* + * <regular_function_call> ::= <function_call_generic> + */ +regular_function_call + function_call_generic .emit OP_CALL .and .true .emit OP_END; + +/* + * <function_call_generic> ::= <function_call_header_with_parameters> ")" + * | <function_call_header_no_parameters> ")" + */ +function_call_generic + function_call_generic_1 .or function_call_generic_2; +function_call_generic_1 + function_call_header_with_parameters .and rparen .error RPAREN_EXPECTED; +function_call_generic_2 + function_call_header_no_parameters .and rparen .error RPAREN_EXPECTED; + +/* + * <function_call_header_no_parameters>::= <function_call_header> "void" + * | <function_call_header> + */ +function_call_header_no_parameters + function_call_header .and function_call_header_no_parameters_1; +function_call_header_no_parameters_1 + "void" .or .true; + +/* + * <function_call_header_with_parameters> ::= <function_call_header> <assignment_expression> + * | <function_call_header_with_parameters> "," <assignment_expression> + */ +function_call_header_with_parameters + function_call_header .and assignment_expression .and .true .emit OP_END .and + .loop function_call_header_with_parameters_1; +function_call_header_with_parameters_1 + comma .and assignment_expression .and .true .emit OP_END; + +/* + * <function_call_header> ::= <function_identifier> "(" + */ +function_call_header + function_identifier .and lparen; + +/* + * <function_identifier> ::= <constructor_identifier> + * | <identifier> + * | <type_specifier> + * + * note: <constructor_identifier> and <type_specifier> have been deleted + */ +function_identifier + identifier .and function_identifier_opt_array; +function_identifier_opt_array + function_identifier_array .emit FUNCTION_CALL_ARRAY .or + .true .emit FUNCTION_CALL_NONARRAY; +function_identifier_array + lbracket .and constant_expression .and rbracket; + +/* + * <unary_expression> ::= <postfix_expression> + * | "++" <unary_expression> + * | "--" <unary_expression> + * | <unary_operator> <unary_expression> + * + * <unary_operator> ::= "+" + * | "-" + * | "!" + * | "~" // reserved + */ +unary_expression + postfix_expression .or unary_expression_1 .or unary_expression_2 .or unary_expression_3 .or + unary_expression_4 .or unary_expression_5/* .or unary_expression_6*/; +unary_expression_1 + plusplus .and unary_expression .and .true .emit OP_PREINCREMENT; +unary_expression_2 + minusminus .and unary_expression .and .true .emit OP_PREDECREMENT; +unary_expression_3 + plus .and unary_expression .and .true .emit OP_PLUS; +unary_expression_4 + minus .and unary_expression .and .true .emit OP_MINUS; +unary_expression_5 + bang .and unary_expression .and .true .emit OP_NOT; +/*unary_expression_6 + tilde .and unary_expression .and .true .emit OP_COMPLEMENT;*/ + +/* + * <multiplicative_expression> ::= <unary_expression> + * | <multiplicative_expression> "*" <unary_expression> + * | <multiplicative_expression> "/" <unary_expression> + * | <multiplicative_expression> "%" <unary_expression> // reserved + */ +multiplicative_expression + unary_expression .and .loop multiplicative_expression_1; +multiplicative_expression_1 + multiplicative_expression_2 .or multiplicative_expression_3/* .or multiplicative_expression_4*/; +multiplicative_expression_2 + star .and unary_expression .and .true .emit OP_MULTIPLY; +multiplicative_expression_3 + slash .and unary_expression .and .true .emit OP_DIVIDE; +/*multiplicative_expression_4 + percent .and unary_expression .and .true .emit OP_MODULUS;*/ + +/* + * <additive_expression> ::= <multiplicative_expression> + * | <additive_expression> "+" <multiplicative_expression> + * | <additive_expression> "-" <multiplicative_expression> + */ +additive_expression + multiplicative_expression .and .loop additive_expression_1; +additive_expression_1 + additive_expression_2 .or additive_expression_3; +additive_expression_2 + plus .and multiplicative_expression .and .true .emit OP_ADD; +additive_expression_3 + minus .and multiplicative_expression .and .true .emit OP_SUBTRACT; + +/* + * <shift_expression> ::= <additive_expression> + * | <shift_expression> "<<" <additive_expression> // reserved + * | <shift_expression> ">>" <additive_expression> // reserved + */ +shift_expression + additive_expression/* .and .loop shift_expression_1*/; +/*shift_expression_1 + shift_expression_2 .or shift_expression_3;*/ +/*shift_expression_2 + lessless .and additive_expression .and .true .emit OP_LSHIFT;*/ +/*shift_expression_3 + greatergreater .and additive_expression .and .true .emit OP_RSHIFT;*/ + +/* + * <relational_expression> ::= <shift_expression> + * | <relational_expression> "<" <shift_expression> + * | <relational_expression> ">" <shift_expression> + * | <relational_expression> "<=" <shift_expression> + * | <relational_expression> ">=" <shift_expression> + */ +relational_expression + shift_expression .and .loop relational_expression_1; +relational_expression_1 + relational_expression_2 .or relational_expression_3 .or relational_expression_4 .or + relational_expression_5; +relational_expression_2 + lessequals .and shift_expression .and .true .emit OP_LESSEQUAL; +relational_expression_3 + greaterequals .and shift_expression .and .true .emit OP_GREATEREQUAL; +relational_expression_4 + less .and shift_expression .and .true .emit OP_LESS; +relational_expression_5 + greater .and shift_expression .and .true .emit OP_GREATER; + +/* + * <equality_expression> ::= <relational_expression> + * | <equality_expression> "==" <relational_expression> + * | <equality_expression> "!=" <relational_expression> + */ +equality_expression + relational_expression .and .loop equality_expression_1; +equality_expression_1 + equality_expression_2 .or equality_expression_3; +equality_expression_2 + equalsequals .and relational_expression .and .true .emit OP_EQUAL; +equality_expression_3 + bangequals .and relational_expression .and .true .emit OP_NOTEQUAL; + +/* + * <and_expression> ::= <equality_expression> + * | <and_expression> "&" <equality_expression> // reserved + */ +and_expression + equality_expression/* .and .loop and_expression_1*/; +/*and_expression_1 + ampersand .and equality_expression .and .true .emit OP_BITAND;*/ + +/* + * <exclusive_or_expression> ::= <and_expression> + * | <exclusive_or_expression> "^" <and_expression> // reserved + */ +exclusive_or_expression + and_expression/* .and .loop exclusive_or_expression_1*/; +/*exclusive_or_expression_1 + caret .and and_expression .and .true .emit OP_BITXOR;*/ + +/* + * <inclusive_or_expression> ::= <exclusive_or_expression> + * | <inclusive_or_expression> "|" <exclusive_or_expression> // reserved + */ +inclusive_or_expression + exclusive_or_expression/* .and .loop inclusive_or_expression_1*/; +/*inclusive_or_expression_1 + bar .and exclusive_or_expression .and .true .emit OP_BITOR;*/ + +/* + * <logical_and_expression> ::= <inclusive_or_expression> + * | <logical_and_expression> "&&" <inclusive_or_expression> + */ +logical_and_expression + inclusive_or_expression .and .loop logical_and_expression_1; +logical_and_expression_1 + ampersandampersand .and inclusive_or_expression .and .true .emit OP_LOGICALAND; + +/* + * <logical_xor_expression> ::= <logical_and_expression> + * | <logical_xor_expression> "^^" <logical_and_expression> + */ +logical_xor_expression + logical_and_expression .and .loop logical_xor_expression_1; +logical_xor_expression_1 + caretcaret .and logical_and_expression .and .true .emit OP_LOGICALXOR; + +/* + * <logical_or_expression> ::= <logical_xor_expression> + * | <logical_or_expression> "||" <logical_xor_expression> + */ +logical_or_expression + logical_xor_expression .and .loop logical_or_expression_1; +logical_or_expression_1 + barbar .and logical_xor_expression .and .true .emit OP_LOGICALOR; + +/* + * <conditional_expression> ::= <logical_or_expression> + * | <logical_or_expression> "?" <expression> ":" <conditional_expression> + */ +conditional_expression + logical_or_expression .and .loop conditional_expression_1; +conditional_expression_1 + question .and expression .and colon .and conditional_expression .and .true .emit OP_SELECT; + +/* + * <assignment_expression> ::= <conditional_expression> + * | <unary_expression> <assignment_operator> <assignment_expression> + * + * <assignment_operator> ::= "=" + * | "*=" + * | "/=" + * | "+=" + * | "-=" + * | "%=" // reserved + * | "<<=" // reserved + * | ">>=" // reserved + * | "&=" // reserved + * | "^=" // reserved + * | "|=" // reserved + */ +assignment_expression + assignment_expression_1 .or assignment_expression_2 .or assignment_expression_3 .or + assignment_expression_4 .or assignment_expression_5/* .or assignment_expression_6 .or + assignment_expression_7 .or assignment_expression_8 .or assignment_expression_9 .or + assignment_expression_10 .or assignment_expression_11*/ .or conditional_expression; +assignment_expression_1 + unary_expression .and equals .and assignment_expression .and .true .emit OP_ASSIGN; +assignment_expression_2 + unary_expression .and starequals .and assignment_expression .and .true .emit OP_MULASSIGN; +assignment_expression_3 + unary_expression .and slashequals .and assignment_expression .and .true .emit OP_DIVASSIGN; +assignment_expression_4 + unary_expression .and plusequals .and assignment_expression .and .true .emit OP_ADDASSIGN; +assignment_expression_5 + unary_expression .and minusequals .and assignment_expression .and .true .emit OP_SUBASSIGN; +/*assignment_expression_6 + unary_expression .and percentequals .and assignment_expression .and .true .emit OP_MODASSIGN;*/ +/*assignment_expression_7 + unary_expression .and lesslessequals .and assignment_expression .and .true .emit OP_LSHASSIGN;*/ +/*assignment_expression_8 + unary_expression .and greatergreaterequals .and assignment_expression .and + .true .emit OP_RSHASSIGN;*/ +/*assignment_expression_9 + unary_expression .and ampersandequals .and assignment_expression .and .true .emit OP_ANDASSIGN;*/ +/*assignment_expression_10 + unary_expression .and caretequals .and assignment_expression .and .true .emit OP_XORASSIGN;*/ +/*assignment_expression_11 + unary_expression .and barequals .and assignment_expression .and .true .emit OP_ORASSIGN;*/ + +/* + * <expression> ::= <assignment_expression> + * | <expression> "," <assignment_expression> + */ +expression + assignment_expression .and .loop expression_1; +expression_1 + comma .and assignment_expression .and .true .emit OP_SEQUENCE; + +/* + * <constant_expression> ::= <conditional_expression> + */ +constant_expression + conditional_expression .and .true .emit OP_END; + +/* + * <declaration> ::= <function_prototype> ";" + * | <init_declarator_list> ";" + */ +declaration + declaration_1 .or declaration_2; +declaration_1 + function_prototype .emit DECLARATION_FUNCTION_PROTOTYPE .and semicolon; +declaration_2 + init_declarator_list .emit DECLARATION_INIT_DECLARATOR_LIST .and semicolon; + +/* + * <function_prototype> ::= <function_header> "void" ")" + * | <function_declarator> ")" + */ +function_prototype + function_prototype_1 .or function_prototype_2; +function_prototype_1 + function_header .and "void" .and rparen .error RPAREN_EXPECTED .emit PARAMETER_NONE; +function_prototype_2 + function_declarator .and rparen .error RPAREN_EXPECTED .emit PARAMETER_NONE; + +/* + * <function_declarator> ::= <function_header> + * | <function_header_with_parameters> + */ +function_declarator + function_header_with_parameters .or function_header; + +/* + * <function_header_with_parameters> ::= <function_header> <parameter_declaration> + * | <function_header_with_parameters> "," + * <parameter_declaration> + */ +function_header_with_parameters + function_header .and parameter_declaration .and .loop function_header_with_parameters_1; +function_header_with_parameters_1 + comma .and parameter_declaration; + +/* + * <function_header> ::= <fully_specified_type> <identifier> "(" + */ +function_header + function_header_nospace .or function_header_space; +function_header_space + fully_specified_type_space .and space .and function_decl_identifier .and lparen; +function_header_nospace + fully_specified_type_nospace .and function_decl_identifier .and lparen; + +/* + * <function_decl_identifier> ::= "__constructor" + * | <__operator> + * | <identifier> + * + * note: this is an extension to the standard language specification. + * normally slang disallows operator and constructor prototypes and definitions + */ +function_decl_identifier + .if (parsing_builtin != 0) __operator .emit FUNCTION_OPERATOR .or + .if (parsing_builtin != 0) "__constructor" .emit FUNCTION_CONSTRUCTOR .or + identifier .emit FUNCTION_ORDINARY; + +/* + * <__operator> ::= "__operator" <overriden_op> + * + * note: this is an extension to the standard language specification. + * normally slang disallows operator prototypes and definitions + */ +__operator + "__operator" .and overriden_operator .error INVALID_OPERATOR_OVERRIDE; + +/* + * <overriden_op> ::= "=" + * | "+=" + * | "-=" + * | "*=" + * | "/=" + * | "%=" // reserved + * | "<<=" // reserved + * | ">>=" // reserved + * | "&=" // reserved + * | "^=" // reserved + * | "|=" // reserved + * | "^^" + * | "|" // reserved + * | "^" // reserved + * | "&" // reserved + * | "==" + * | "!=" + * | "<" + * | ">" + * | "<=" + * | ">=" + * | "<<" // reserved + * | ">>" // reserved + * | "*" + * | "/" + * | "%" // reserved + * | "++" + * | "--" + * | "+" + * | "-" + * | "~" // reserved + * | "!" + * + * note: this is an extension to the standard language specification. + * normally slang disallows operator prototypes and definitions + */ +overriden_operator + plusplus .emit OPERATOR_INCREMENT .or + plusequals .emit OPERATOR_ADDASSIGN .or + plus .emit OPERATOR_PLUS .or + minusminus .emit OPERATOR_DECREMENT .or + minusequals .emit OPERATOR_SUBASSIGN .or + minus .emit OPERATOR_MINUS .or + bang .emit OPERATOR_NOT .or + starequals .emit OPERATOR_MULASSIGN .or + star .emit OPERATOR_MULTIPLY .or + slashequals .emit OPERATOR_DIVASSIGN .or + slash .emit OPERATOR_DIVIDE .or + lessequals .emit OPERATOR_LESSEQUAL .or + /*lesslessequals .emit OPERATOR_LSHASSIGN .or*/ + /*lessless .emit OPERATOR_LSHIFT .or*/ + less .emit OPERATOR_LESS .or + greaterequals .emit OPERATOR_GREATEREQUAL .or + /*greatergreaterequals .emit OPERATOR_RSHASSIGN .or*/ + /*greatergreater .emit OPERATOR_RSHIFT .or*/ + greater .emit OPERATOR_GREATER .or + /*percentequals .emit OPERATOR_MODASSIGN .or*/ + /*percent .emit OPERATOR_MODULUS .or*/ + /*ampersandequals .emit OPERATOR_ANDASSIGN */ + /*ampersand .emit OPERATOR_BITAND .or*/ + /*barequals .emit OPERATOR_ORASSIGN .or*/ + /*bar .emit OPERATOR_BITOR .or*/ + /*tilde .emit OPERATOR_COMPLEMENT .or*/ + /*caretequals .emit OPERATOR_XORASSIGN .or*/ + caretcaret .emit OPERATOR_LOGICALXOR /*.or + caret .emit OPERATOR_BITXOR*/; + +/* + * <parameter_declarator> ::= <type_specifier> <identifier> + * | <type_specifier> <identifier> "[" <constant_expression> "]" + */ +parameter_declarator + parameter_declarator_nospace .or parameter_declarator_space; +parameter_declarator_nospace + type_specifier_nospace .and identifier .and parameter_declarator_1; +parameter_declarator_space + type_specifier_space .and space .and identifier .and parameter_declarator_1; +parameter_declarator_1 + parameter_declarator_2 .emit PARAMETER_ARRAY_PRESENT .or + .true .emit PARAMETER_ARRAY_NOT_PRESENT; +parameter_declarator_2 + lbracket .and constant_expression .and rbracket; + +/* + * <parameter_declaration> ::= <type_qualifier> <parameter_qualifier> + * <precision> <parameter_declarator> + * | <type_qualifier> <parameter_qualifier> + * <precision> <parameter_type_specifier> + * | <type_qualifier> <parameter_qualifier> + * <parameter_declarator> + * | <type_qualifier> <parameter_qualifier> + * <parameter_type_specifier> + * | <parameter_qualifier> <precision> + * <parameter_declarator> + * | <parameter_qualifier> <precision> + * <parameter_type_specifier> + * | <parameter_qualifier> <parameter_declarator> + * | <parameter_qualifier> <parameter_type_specifier> + */ +parameter_declaration + parameter_declaration_1 .emit PARAMETER_NEXT; +parameter_declaration_1 + parameter_declaration_2 .or parameter_declaration_3; +parameter_declaration_2 + type_qualifier .and space .and parameter_qualifier .and parameter_declaration_4; +parameter_declaration_3 + parameter_qualifier .emit TYPE_QUALIFIER_NONE .and parameter_declaration_4; +parameter_declaration_4 + parameter_declaration_optprec .and parameter_declaration_rest; +parameter_declaration_optprec + parameter_declaration_prec .or .true .emit PRECISION_DEFAULT; +parameter_declaration_prec + precision .and space; +parameter_declaration_rest + parameter_declarator .or parameter_type_specifier; + +/* + * <parameter_qualifier> ::= "in" + * | "out" + * | "inout" + * | "" + */ +parameter_qualifier + parameter_qualifier_1 .or .true .emit PARAM_QUALIFIER_IN; +parameter_qualifier_1 + parameter_qualifier_2 .and space; +parameter_qualifier_2 + "in" .emit PARAM_QUALIFIER_IN .or + "out" .emit PARAM_QUALIFIER_OUT .or + "inout" .emit PARAM_QUALIFIER_INOUT; + +/* + * <parameter_type_specifier> ::= <type_specifier> + * | <type_specifier> "[" <constant_expression> "]" + */ +parameter_type_specifier + parameter_type_specifier_1 .and .true .emit '\0' .and parameter_type_specifier_2; +parameter_type_specifier_1 + type_specifier_nospace .or type_specifier_space; +parameter_type_specifier_2 + parameter_type_specifier_3 .emit PARAMETER_ARRAY_PRESENT .or + .true .emit PARAMETER_ARRAY_NOT_PRESENT; +parameter_type_specifier_3 + lbracket .and constant_expression .and rbracket; + +/* + * <init_declarator_list> ::= <single_declaration> + * | <init_declarator_list> "," <identifier> + * | <init_declarator_list> "," <identifier> "[" "]" + * | <init_declarator_list> "," <identifier> "[" <constant_expression> "]" + * | <init_declarator_list> "," <identifier> "=" <initializer> + */ +init_declarator_list + single_declaration .and .loop init_declarator_list_1 .emit DECLARATOR_NEXT .and + .true .emit DECLARATOR_NONE; +init_declarator_list_1 + comma .and identifier .emit VARIABLE_IDENTIFIER .and init_declarator_list_2; +init_declarator_list_2 + init_declarator_list_3 .or init_declarator_list_4 .or .true .emit VARIABLE_NONE; +init_declarator_list_3 + equals .and initializer .emit VARIABLE_INITIALIZER; +init_declarator_list_4 + lbracket .and init_declarator_list_5 .and rbracket; +init_declarator_list_5 + constant_expression .emit VARIABLE_ARRAY_EXPLICIT .or .true .emit VARIABLE_ARRAY_UNKNOWN; + +/* + * <single_declaration> ::= <fully_specified_type> + * | <fully_specified_type> <identifier> + * | <fully_specified_type> <identifier> "[" "]" + * | <fully_specified_type> <identifier> "[" <constant_expression> "]" + * | <fully_specified_type> <identifier> "=" <initializer> + */ +single_declaration + single_declaration_nospace .or single_declaration_space; +single_declaration_space + fully_specified_type_space .and single_declaration_space_1; +single_declaration_nospace + fully_specified_type_nospace .and single_declaration_nospace_1; +single_declaration_space_1 + single_declaration_space_2 .emit VARIABLE_IDENTIFIER .or .true .emit VARIABLE_NONE; +single_declaration_nospace_1 + single_declaration_nospace_2 .emit VARIABLE_IDENTIFIER .or .true .emit VARIABLE_NONE; +single_declaration_space_2 + space .and identifier .and single_declaration_3; +single_declaration_nospace_2 + identifier .and single_declaration_3; +single_declaration_3 + single_declaration_4 .or single_declaration_5 .or .true .emit VARIABLE_NONE; +single_declaration_4 + equals .and initializer .emit VARIABLE_INITIALIZER; +single_declaration_5 + lbracket .and single_declaration_6 .and rbracket; +single_declaration_6 + constant_expression .emit VARIABLE_ARRAY_EXPLICIT .or .true .emit VARIABLE_ARRAY_UNKNOWN; + +/* + * <fully_specified_type> ::= <opt_invariant> <opt_centroid> <opt_qualifer> <opt_precision> <type_specifier> + * + * Example: "invariant varying highp vec3" + */ +fully_specified_type_space + fully_specified_type_optinvariant .and fully_specified_type_optcentroid .and fully_specified_type_optqual .and fully_specified_type_optprec .and type_specifier_space; +fully_specified_type_nospace + fully_specified_type_optinvariant .and fully_specified_type_optcentroid .and fully_specified_type_optqual .and fully_specified_type_optprec .and type_specifier_nospace; +fully_specified_type_optinvariant + fully_specified_type_invariant .or .true .emit TYPE_VARIANT; +fully_specified_type_invariant + invariant_qualifier .and space; +fully_specified_type_optcentroid + fully_specified_type_centroid .or .true .emit TYPE_CENTER; +fully_specified_type_centroid + centroid_qualifier .and space; +fully_specified_type_optqual + fully_specified_type_qual .or .true .emit TYPE_QUALIFIER_NONE; +fully_specified_type_qual + type_qualifier .and space; +fully_specified_type_optprec + fully_specified_type_prec .or .true .emit PRECISION_DEFAULT; +fully_specified_type_prec + precision .and space; + +/* + * <invariant_qualifier> ::= "invariant" + */ +invariant_qualifier + "invariant" .emit TYPE_INVARIANT; + +centroid_qualifier + "centroid" .emit TYPE_CENTROID; + + +/* + * <type_qualifier> ::= "const" + * | "attribute" // Vertex only. + * | "varying" + * | "uniform" + * | "__fixed_output" + * | "__fixed_input" + * + * note: this is an extension to the standard language specification, + * normally slang disallows __fixed_output and __fixed_input type qualifiers + */ +type_qualifier + "const" .emit TYPE_QUALIFIER_CONST .or + .if (shader_type == 2) "attribute" .emit TYPE_QUALIFIER_ATTRIBUTE .or + "varying" .emit TYPE_QUALIFIER_VARYING .or + "uniform" .emit TYPE_QUALIFIER_UNIFORM .or + .if (parsing_builtin != 0) "__fixed_output" .emit TYPE_QUALIFIER_FIXEDOUTPUT .or + .if (parsing_builtin != 0) "__fixed_input" .emit TYPE_QUALIFIER_FIXEDINPUT; + +/* + * <type_specifier_nonarray> ::= "void" + * | "float" + * | "int" + * | "bool" + * | "vec2" + * | "vec3" + * | "vec4" + * | "bvec2" + * | "bvec3" + * | "bvec4" + * | "ivec2" + * | "ivec3" + * | "ivec4" + * | "mat2" + * | "mat3" + * | "mat4" + * | "mat2x3" + * | "mat3x2" + * | "mat2x4" + * | "mat4x2" + * | "mat3x4" + * | "mat4x3" + * | "sampler1D" + * | "sampler2D" + * | "sampler3D" + * | "samplerCube" + * | "sampler1DShadow" + * | "sampler2DShadow" + * | "sampler2DRect" + * | "sampler2DRectShadow" + * | <struct_specifier> + * | <type_name> + */ +type_specifier_nonarray_space + "void" .emit TYPE_SPECIFIER_VOID .or + "float" .emit TYPE_SPECIFIER_FLOAT .or + "int" .emit TYPE_SPECIFIER_INT .or + "bool" .emit TYPE_SPECIFIER_BOOL .or + "vec2" .emit TYPE_SPECIFIER_VEC2 .or + "vec3" .emit TYPE_SPECIFIER_VEC3 .or + "vec4" .emit TYPE_SPECIFIER_VEC4 .or + "bvec2" .emit TYPE_SPECIFIER_BVEC2 .or + "bvec3" .emit TYPE_SPECIFIER_BVEC3 .or + "bvec4" .emit TYPE_SPECIFIER_BVEC4 .or + "ivec2" .emit TYPE_SPECIFIER_IVEC2 .or + "ivec3" .emit TYPE_SPECIFIER_IVEC3 .or + "ivec4" .emit TYPE_SPECIFIER_IVEC4 .or + "mat2" .emit TYPE_SPECIFIER_MAT2 .or + "mat3" .emit TYPE_SPECIFIER_MAT3 .or + "mat4" .emit TYPE_SPECIFIER_MAT4 .or + "mat2x3" .emit TYPE_SPECIFIER_MAT23 .or + "mat3x2" .emit TYPE_SPECIFIER_MAT32 .or + "mat2x4" .emit TYPE_SPECIFIER_MAT24 .or + "mat4x2" .emit TYPE_SPECIFIER_MAT42 .or + "mat3x4" .emit TYPE_SPECIFIER_MAT34 .or + "mat4x3" .emit TYPE_SPECIFIER_MAT43 .or + "sampler1D" .emit TYPE_SPECIFIER_SAMPLER1D .or + "sampler2D" .emit TYPE_SPECIFIER_SAMPLER2D .or + "sampler3D" .emit TYPE_SPECIFIER_SAMPLER3D .or + "samplerCube" .emit TYPE_SPECIFIER_SAMPLERCUBE .or + "sampler1DShadow" .emit TYPE_SPECIFIER_SAMPLER1DSHADOW .or + "sampler2DShadow" .emit TYPE_SPECIFIER_SAMPLER2DSHADOW .or + "sampler2DRect" .emit TYPE_SPECIFIER_SAMPLER2DRECT .or + "sampler2DRectShadow" .emit TYPE_SPECIFIER_SAMPLER2DRECTSHADOW .or + type_name .emit TYPE_SPECIFIER_TYPENAME; +type_specifier_nonarray_nospace + struct_specifier .emit TYPE_SPECIFIER_STRUCT; +type_specifier_nonarray + type_specifier_nonarray_nospace .or type_specifier_nonarray_space; + +/* + * <type_specifier> ::= <type_specifier_nonarray> + * | <type_specifier_nonarray> "[" <constant_expression> "]" + */ +type_specifier_space + type_specifier_nonarray_space .and .true .emit TYPE_SPECIFIER_NONARRAY; +type_specifier_nospace + type_specifier_nospace_array .or type_specifier_nospace_1; +type_specifier_nospace_1 + type_specifier_nonarray_nospace .and .true .emit TYPE_SPECIFIER_NONARRAY; +type_specifier_nospace_array + type_specifier_nonarray .and lbracket .emit TYPE_SPECIFIER_ARRAY .and constant_expression .and rbracket; + +/* + * <struct_specifier> ::= "struct" <identifier> "{" <struct_declaration_list> "}" + * | "struct" "{" <struct_declaration_list> "}" + */ +struct_specifier + "struct" .and struct_specifier_1 .and optional_space .and lbrace .error LBRACE_EXPECTED .and + struct_declaration_list .and rbrace .emit FIELD_NONE; +struct_specifier_1 + struct_specifier_2 .or .true .emit '\0'; +struct_specifier_2 + space .and identifier; + +/* + * <struct_declaration_list> ::= <struct_declaration> + * | <struct_declaration_list> <struct_declaration> + */ +struct_declaration_list + struct_declaration .and .loop struct_declaration .emit FIELD_NEXT; + +/* + * <struct_declaration> ::= <type_specifier> <struct_declarator_list> ";" + */ +struct_declaration + struct_declaration_nospace .or struct_declaration_space; +struct_declaration_space + type_specifier_space .and space .and struct_declarator_list .and semicolon .emit FIELD_NONE; +struct_declaration_nospace + type_specifier_nospace .and struct_declarator_list .and semicolon .emit FIELD_NONE; + +/* + * <struct_declarator_list> ::= <struct_declarator> + * | <struct_declarator_list> "," <struct_declarator> + */ +struct_declarator_list + struct_declarator .and .loop struct_declarator_list_1 .emit FIELD_NEXT; +struct_declarator_list_1 + comma .and struct_declarator; + +/* + * <struct_declarator> ::= <identifier> + * | <identifier> "[" <constant_expression> "]" + */ +struct_declarator + identifier .and struct_declarator_1; +struct_declarator_1 + struct_declarator_2 .emit FIELD_ARRAY .or .true .emit FIELD_NONE; +struct_declarator_2 + lbracket .and constant_expression .and rbracket; + +/* + * <initializer> ::= <assignment_expression> + */ +initializer + assignment_expression .and .true .emit OP_END; + +/* + * <declaration_statement> ::= <declaration> + */ +declaration_statement + declaration; + +/* + * <statement> ::= <compound_statement> + * | <simple_statement> + */ +statement + compound_statement .or simple_statement; +statement_space + compound_statement .or statement_space_1; +statement_space_1 + space .and simple_statement; + +/* + * <simple_statement> ::= <__asm_statement> + * | <selection_statement> + * | <iteration_statement> + * | <jump_statement> + * | <expression_statement> + * | <declaration_statement> + * + * note: this is an extension to the standard language specification. + * normally slang disallows use of __asm statements + */ +simple_statement + .if (parsing_builtin != 0) __asm_statement .emit OP_ASM .or + selection_statement .or + iteration_statement .or + precision_stmt .emit OP_PRECISION .or + jump_statement .or + expression_statement .emit OP_EXPRESSION .or + declaration_statement .emit OP_DECLARE; + +/* + * <compound_statement> ::= "{" "}" + * | "{" <statement_list> "}" + */ +compound_statement + compound_statement_1 .emit OP_BLOCK_BEGIN_NEW_SCOPE .and .true .emit OP_END; +compound_statement_1 + compound_statement_2 .or compound_statement_3; +compound_statement_2 + lbrace .and rbrace; +compound_statement_3 + lbrace .and statement_list .and rbrace; + +/* + * <compound_statement_no_new_scope> ::= "{" "}" + * | "{" <statement_list> "}" + */ +compound_statement_no_new_scope + compound_statement_no_new_scope_1 .emit OP_BLOCK_BEGIN_NO_NEW_SCOPE .and .true .emit OP_END; +compound_statement_no_new_scope_1 + compound_statement_no_new_scope_2 .or compound_statement_no_new_scope_3; +compound_statement_no_new_scope_2 + lbrace .and rbrace; +compound_statement_no_new_scope_3 + lbrace .and statement_list .and rbrace; + + +/* + * <statement_list> ::= <statement> + * | <statement_list> <statement> + */ +statement_list + statement .and .loop statement; + +/* + * <expression_statement> ::= ";" + * | <expression> ";" + */ +expression_statement + expression_statement_1 .or expression_statement_2; +expression_statement_1 + semicolon .emit OP_PUSH_VOID .emit OP_END; +expression_statement_2 + expression .and semicolon .emit OP_END; + +/* + * <selection_statement> ::= "if" "(" <expression> ")" <selection_rest_statement> + */ +selection_statement + "if" .emit OP_IF .and lparen .error LPAREN_EXPECTED .and expression .and + rparen .error RPAREN_EXPECTED .emit OP_END .and selection_rest_statement; + +/* + * <selection_rest_statement> ::= <statement> "else" <statement> + * | <statement> + */ +selection_rest_statement + statement .and selection_rest_statement_1; +selection_rest_statement_1 + selection_rest_statement_2 .or .true .emit OP_EXPRESSION .emit OP_PUSH_VOID .emit OP_END; +selection_rest_statement_2 + "else" .and optional_space .and statement; + +/* + * <condition> ::= <expression> + * | <fully_specified_type> <identifier> "=" <initializer> + * + * note: if <condition_1> is executed, the emit format must + * match <declaration> emit format + */ +condition + condition_1 .emit OP_DECLARE .emit DECLARATION_INIT_DECLARATOR_LIST .or + condition_3 .emit OP_EXPRESSION; +condition_1 + condition_1_nospace .or condition_1_space; +condition_1_nospace + fully_specified_type_nospace .and condition_2; +condition_1_space + fully_specified_type_space .and space .and condition_2; +condition_2 + identifier .emit VARIABLE_IDENTIFIER .and equals .emit VARIABLE_INITIALIZER .and + initializer .and .true .emit DECLARATOR_NONE; +condition_3 + expression .and .true .emit OP_END; + +/* + * <iteration_statement> ::= "while" "(" <condition> ")" <statement> + * | "do" <statement> "while" "(" <expression> ")" ";" + * | "for" "(" <for_init_statement> <for_rest_statement> ")" <statement> + */ +iteration_statement + iteration_statement_1 .or iteration_statement_2 .or iteration_statement_3; +iteration_statement_1 + "while" .emit OP_WHILE .and lparen .error LPAREN_EXPECTED .and condition .and + rparen .error RPAREN_EXPECTED .and statement; +iteration_statement_2 + "do" .emit OP_DO .and statement_space .and "while" .and lparen .error LPAREN_EXPECTED .and + expression .and rparen .error RPAREN_EXPECTED .emit OP_END .and semicolon; +iteration_statement_3 + "for" .emit OP_FOR .and lparen .error LPAREN_EXPECTED .and for_init_statement .and + for_rest_statement .and rparen .error RPAREN_EXPECTED .and statement; + +/* + * <for_init_statement> ::= <expression_statement> + * | <declaration_statement> + */ +for_init_statement + expression_statement .emit OP_EXPRESSION .or declaration_statement .emit OP_DECLARE; + +/* + * <conditionopt> ::= <condition> + * | "" + * + * note: <conditionopt> is used only by "for" statement. + * if <condition> is ommitted, parser simulates default behaviour, + * that is simulates "true" expression + */ +conditionopt + condition .or + .true .emit OP_EXPRESSION .emit OP_PUSH_BOOL .emit 2 .emit '1' .emit '\0' .emit OP_END; + +/* + * <for_rest_statement> ::= <conditionopt> ";" + * | <conditionopt> ";" <expression> + */ +for_rest_statement + conditionopt .and semicolon .and for_rest_statement_1; +for_rest_statement_1 + for_rest_statement_2 .or .true .emit OP_PUSH_VOID .emit OP_END; +for_rest_statement_2 + expression .and .true .emit OP_END; + +/* + * <jump_statement> ::= "continue" ";" + * | "break" ";" + * | "return" ";" + * | "return" <expression> ";" + * | "discard" ";" // Fragment shader only. + */ +jump_statement + jump_statement_1 .or jump_statement_2 .or jump_statement_3 .or jump_statement_4 .or + .if (shader_type == 1) jump_statement_5; +jump_statement_1 + "continue" .and semicolon .emit OP_CONTINUE; +jump_statement_2 + "break" .and semicolon .emit OP_BREAK; +jump_statement_3 + "return" .emit OP_RETURN .and optional_space .and expression .and semicolon .emit OP_END; +jump_statement_4 + "return" .emit OP_RETURN .and semicolon .emit OP_PUSH_VOID .emit OP_END; +jump_statement_5 + "discard" .and semicolon .emit OP_DISCARD; + +/* + * <__asm_statement> ::= "__asm" <identifier> <asm_arguments> ";" + * + * note: this is an extension to the standard language specification. + * normally slang disallows __asm statements + */ +__asm_statement + "__asm" .and space .and identifier .and space .and asm_arguments .and semicolon .emit OP_END; + +/* + * <asm_arguments> ::= <asm_argument> + * | <asm_arguments> "," <asm_argument> + * + * note: this is an extension to the standard language specification. + * normally slang disallows __asm statements + */ +asm_arguments + asm_argument .and .true .emit OP_END .and .loop asm_arguments_1; +asm_arguments_1 + comma .and asm_argument .and .true .emit OP_END; + +/* + * <asm_argument> ::= <variable_identifier> + * | <floatconstant> + * + * note: this is an extension to the standard language specification. + * normally slang disallows __asm statements + */ +asm_argument + var_with_field .or + variable_identifier .or + floatconstant; + +var_with_field + variable_identifier .and dot .and field_selection .emit OP_FIELD; + + +/* + * <translation_unit> ::= <external_declaration> + * | <translation_unit> <external_declaration> + */ +translation_unit + optional_space .emit REVISION .and external_declaration .error INVALID_EXTERNAL_DECLARATION .and + .loop external_declaration .and optional_space .and + '\0' .error INVALID_EXTERNAL_DECLARATION .emit EXTERNAL_NULL; + + +/* + * <external_declaration> ::= <function_definition> + * | <declaration> + */ +external_declaration + precision_stmt .emit DEFAULT_PRECISION .or + function_definition .emit EXTERNAL_FUNCTION_DEFINITION .or + invariant_stmt .emit INVARIANT_STMT .or + declaration .emit EXTERNAL_DECLARATION; + + +/* + * <precision_stmt> ::= "precision" <precision> <prectype> + */ +precision_stmt + "precision" .and space .and precision .error INVALID_PRECISION .and space .and prectype .error INVALID_PRECISION_TYPE .and semicolon; + +/* + * <precision> ::= "lowp" + * | "mediump" + * | "highp" + */ +precision + "lowp" .emit PRECISION_LOW .or + "mediump" .emit PRECISION_MEDIUM .or + "highp" .emit PRECISION_HIGH; + +/* + * <prectype> ::= "int" + * | "float" + * | "a sampler type" + */ +prectype + "int" .emit TYPE_SPECIFIER_INT .or + "float" .emit TYPE_SPECIFIER_FLOAT .or + "sampler1D" .emit TYPE_SPECIFIER_SAMPLER1D .or + "sampler2D" .emit TYPE_SPECIFIER_SAMPLER2D .or + "sampler3D" .emit TYPE_SPECIFIER_SAMPLER3D .or + "samplerCube" .emit TYPE_SPECIFIER_SAMPLERCUBE .or + "sampler1DShadow" .emit TYPE_SPECIFIER_SAMPLER1DSHADOW .or + "sampler2DShadow" .emit TYPE_SPECIFIER_SAMPLER2DSHADOW .or + "sampler2DRect" .emit TYPE_SPECIFIER_SAMPLER2DRECT .or + "sampler2DRectShadow" .emit TYPE_SPECIFIER_SAMPLER2DRECTSHADOW; + + +/* + * <invariant_stmt> ::= "invariant" identifier; + */ +invariant_stmt + "invariant" .and space .and identifier .and semicolon; + + +/* + * <function_definition> :: <function_prototype> <compound_statement_no_new_scope> + */ +function_definition + function_prototype .and compound_statement_no_new_scope; + + + +/* + * helper rules, not part of the official language syntax + */ + +digit_oct + '0'-'7'; + +digit_dec + '0'-'9'; + +digit_hex + '0'-'9' .or 'A'-'F' .or 'a'-'f'; + +id_character_first + 'a'-'z' .or 'A'-'Z' .or '_'; + +id_character_next + id_character_first .or digit_dec; + +identifier + id_character_first .emit * .and .loop id_character_next .emit * .and .true .emit '\0'; + +float + float_1 .or float_2 .or float_3; +float_1 + float_fractional_constant .and float_optional_exponent_part .and optional_f_suffix; +float_2 + float_digit_sequence .and .true .emit '\0' .and float_exponent_part .and optional_f_suffix; +float_3 + float_digit_sequence .and .true .emit '\0' .and 'f' .emit '\0'; + +float_fractional_constant + float_fractional_constant_1 .or float_fractional_constant_2 .or float_fractional_constant_3; +float_fractional_constant_1 + float_digit_sequence .and '.' .and float_digit_sequence; +float_fractional_constant_2 + float_digit_sequence .and '.' .and .true .emit '\0'; +float_fractional_constant_3 + '.' .emit '\0' .and float_digit_sequence; + +float_optional_exponent_part + float_exponent_part .or .true .emit '\0'; + +float_digit_sequence + digit_dec .emit * .and .loop digit_dec .emit * .and .true .emit '\0'; + +float_exponent_part + float_exponent_part_1 .or float_exponent_part_2; +float_exponent_part_1 + 'e' .and float_optional_sign .and float_digit_sequence; +float_exponent_part_2 + 'E' .and float_optional_sign .and float_digit_sequence; + +float_optional_sign + float_sign .or .true; + +float_sign + '+' .or '-' .emit '-'; + +optional_f_suffix + 'f' .or .true; + + +integer + integer_hex .or integer_oct .or integer_dec; + +integer_hex + '0' .and integer_hex_1 .emit 0x10 .and digit_hex .emit * .and .loop digit_hex .emit * .and + .true .emit '\0'; +integer_hex_1 + 'x' .or 'X'; + +integer_oct + '0' .emit 8 .emit * .and .loop digit_oct .emit * .and .true .emit '\0'; + +integer_dec + digit_dec .emit 10 .emit * .and .loop digit_dec .emit * .and .true .emit '\0'; + +boolean + "true" .emit 2 .emit '1' .emit '\0' .or + "false" .emit 2 .emit '0' .emit '\0'; + +type_name + identifier; + +field_selection + identifier; + +floatconstant + float .emit OP_PUSH_FLOAT; + +intconstant + integer .emit OP_PUSH_INT; + +boolconstant + boolean .emit OP_PUSH_BOOL; + +optional_space + .loop single_space; + +space + single_space .and .loop single_space; + +single_space + white_char .or c_style_comment_block .or cpp_style_comment_block; + +white_char + ' ' .or '\t' .or new_line .or '\v' .or '\f'; + +new_line + cr_lf .or lf_cr .or '\n' .or '\r'; + +cr_lf + '\r' .and '\n'; + +lf_cr + '\n' .and '\r'; + +c_style_comment_block + '/' .and '*' .and c_style_comment_rest; + +c_style_comment_rest + .loop c_style_comment_char_no_star .and c_style_comment_rest_1; +c_style_comment_rest_1 + c_style_comment_end .or c_style_comment_rest_2; +c_style_comment_rest_2 + '*' .and c_style_comment_rest; + +c_style_comment_char_no_star + '\x2B'-'\xFF' .or '\x01'-'\x29'; + +c_style_comment_end + '*' .and '/'; + +cpp_style_comment_block + '/' .and '/' .and cpp_style_comment_block_1; +cpp_style_comment_block_1 + cpp_style_comment_block_2 .or cpp_style_comment_block_3; +cpp_style_comment_block_2 + .loop cpp_style_comment_char .and new_line; +cpp_style_comment_block_3 + .loop cpp_style_comment_char; + +cpp_style_comment_char + '\x0E'-'\xFF' .or '\x01'-'\x09' .or '\x0B'-'\x0C'; + +/* lexical rules */ + +/*ampersand + optional_space .and '&' .and optional_space;*/ + +ampersandampersand + optional_space .and '&' .and '&' .and optional_space; + +/*ampersandequals + optional_space .and '&' .and '=' .and optional_space;*/ + +/*bar + optional_space .and '|' .and optional_space;*/ + +barbar + optional_space .and '|' .and '|' .and optional_space; + +/*barequals + optional_space .and '|' .and '=' .and optional_space;*/ + +bang + optional_space .and '!' .and optional_space; + +bangequals + optional_space .and '!' .and '=' .and optional_space; + +/*caret + optional_space .and '^' .and optional_space;*/ + +caretcaret + optional_space .and '^' .and '^' .and optional_space; + +/*caretequals + optional_space .and '^' .and '=' .and optional_space;*/ + +colon + optional_space .and ':' .and optional_space; + +comma + optional_space .and ',' .and optional_space; + +dot + optional_space .and '.' .and optional_space; + +equals + optional_space .and '=' .and optional_space; + +equalsequals + optional_space .and '=' .and '=' .and optional_space; + +greater + optional_space .and '>' .and optional_space; + +greaterequals + optional_space .and '>' .and '=' .and optional_space; + +/*greatergreater + optional_space .and '>' .and '>' .and optional_space;*/ + +/*greatergreaterequals + optional_space .and '>' .and '>' .and '=' .and optional_space;*/ + +lbrace + optional_space .and '{' .and optional_space; + +lbracket + optional_space .and '[' .and optional_space; + +less + optional_space .and '<' .and optional_space; + +lessequals + optional_space .and '<' .and '=' .and optional_space; + +/*lessless + optional_space .and '<' .and '<' .and optional_space;*/ + +/*lesslessequals + optional_space .and '<' .and '<' .and '=' .and optional_space;*/ + +lparen + optional_space .and '(' .and optional_space; + +minus + optional_space .and '-' .and optional_space; + +minusequals + optional_space .and '-' .and '=' .and optional_space; + +minusminus + optional_space .and '-' .and '-' .and optional_space; + +/*percent + optional_space .and '%' .and optional_space;*/ + +/*percentequals + optional_space .and '%' .and '=' .and optional_space;*/ + +plus + optional_space .and '+' .and optional_space; + +plusequals + optional_space .and '+' .and '=' .and optional_space; + +plusplus + optional_space .and '+' .and '+' .and optional_space; + +question + optional_space .and '?' .and optional_space; + +rbrace + optional_space .and '}' .and optional_space; + +rbracket + optional_space .and ']' .and optional_space; + +rparen + optional_space .and ')' .and optional_space; + +semicolon + optional_space .and ';' .and optional_space; + +slash + optional_space .and '/' .and optional_space; + +slashequals + optional_space .and '/' .and '=' .and optional_space; + +star + optional_space .and '*' .and optional_space; + +starequals + optional_space .and '*' .and '=' .and optional_space; + +/*tilde + optional_space .and '~' .and optional_space;*/ + +/* string rules - these are used internally by the parser when parsing quoted strings */ + +.string string_lexer; + +string_lexer + lex_first_identifier_character .and .loop lex_next_identifier_character; + +lex_first_identifier_character + 'a'-'z' .or 'A'-'Z' .or '_'; + +lex_next_identifier_character + 'a'-'z' .or 'A'-'Z' .or '0'-'9' .or '_'; + +/* error rules - these are used by error messages */ + +err_token + '~' .or '`' .or '!' .or '@' .or '#' .or '$' .or '%' .or '^' .or '&' .or '*' .or '(' .or ')' .or + '-' .or '+' .or '=' .or '|' .or '\\' .or '[' .or ']' .or '{' .or '}' .or ':' .or ';' .or '"' .or + '\'' .or '<' .or ',' .or '>' .or '.' .or '/' .or '?' .or err_identifier; + +err_identifier + id_character_first .and .loop id_character_next; + diff --git a/mesalib/src/mesa/shader/slang/library/slang_shader_syn.h b/mesalib/src/mesa/shader/slang/library/slang_shader_syn.h new file mode 100644 index 000000000..6a382970e --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_shader_syn.h @@ -0,0 +1,866 @@ + +/* DO NOT EDIT - THIS FILE IS AUTOMATICALLY GENERATED FROM THE .syn FILE */ + +".syntax translation_unit;\n" +".emtcode REVISION 5\n" +".emtcode EXTERNAL_NULL 0\n" +".emtcode EXTERNAL_FUNCTION_DEFINITION 1\n" +".emtcode EXTERNAL_DECLARATION 2\n" +".emtcode DEFAULT_PRECISION 3\n" +".emtcode INVARIANT_STMT 4\n" +".emtcode PRECISION_DEFAULT 0\n" +".emtcode PRECISION_LOW 1\n" +".emtcode PRECISION_MEDIUM 2\n" +".emtcode PRECISION_HIGH 3\n" +".emtcode DECLARATION_FUNCTION_PROTOTYPE 1\n" +".emtcode DECLARATION_INIT_DECLARATOR_LIST 2\n" +".emtcode FUNCTION_ORDINARY 0\n" +".emtcode FUNCTION_CONSTRUCTOR 1\n" +".emtcode FUNCTION_OPERATOR 2\n" +".emtcode FUNCTION_CALL_NONARRAY 0\n" +".emtcode FUNCTION_CALL_ARRAY 1\n" +".emtcode OPERATOR_ADDASSIGN 1\n" +".emtcode OPERATOR_SUBASSIGN 2\n" +".emtcode OPERATOR_MULASSIGN 3\n" +".emtcode OPERATOR_DIVASSIGN 4\n" +".emtcode OPERATOR_LOGICALXOR 11\n" +".emtcode OPERATOR_LESS 15\n" +".emtcode OPERATOR_GREATER 16\n" +".emtcode OPERATOR_LESSEQUAL 17\n" +".emtcode OPERATOR_GREATEREQUAL 18\n" +".emtcode OPERATOR_MULTIPLY 21\n" +".emtcode OPERATOR_DIVIDE 22\n" +".emtcode OPERATOR_INCREMENT 24\n" +".emtcode OPERATOR_DECREMENT 25\n" +".emtcode OPERATOR_PLUS 26\n" +".emtcode OPERATOR_MINUS 27\n" +".emtcode OPERATOR_NOT 29\n" +".emtcode DECLARATOR_NONE 0\n" +".emtcode DECLARATOR_NEXT 1\n" +".emtcode VARIABLE_NONE 0\n" +".emtcode VARIABLE_IDENTIFIER 1\n" +".emtcode VARIABLE_INITIALIZER 2\n" +".emtcode VARIABLE_ARRAY_EXPLICIT 3\n" +".emtcode VARIABLE_ARRAY_UNKNOWN 4\n" +".emtcode TYPE_QUALIFIER_NONE 0\n" +".emtcode TYPE_QUALIFIER_CONST 1\n" +".emtcode TYPE_QUALIFIER_ATTRIBUTE 2\n" +".emtcode TYPE_QUALIFIER_VARYING 3\n" +".emtcode TYPE_QUALIFIER_UNIFORM 4\n" +".emtcode TYPE_QUALIFIER_FIXEDOUTPUT 5\n" +".emtcode TYPE_QUALIFIER_FIXEDINPUT 6\n" +".emtcode TYPE_VARIANT 90\n" +".emtcode TYPE_INVARIANT 91\n" +".emtcode TYPE_CENTER 95\n" +".emtcode TYPE_CENTROID 96\n" +".emtcode TYPE_SPECIFIER_VOID 0\n" +".emtcode TYPE_SPECIFIER_BOOL 1\n" +".emtcode TYPE_SPECIFIER_BVEC2 2\n" +".emtcode TYPE_SPECIFIER_BVEC3 3\n" +".emtcode TYPE_SPECIFIER_BVEC4 4\n" +".emtcode TYPE_SPECIFIER_INT 5\n" +".emtcode TYPE_SPECIFIER_IVEC2 6\n" +".emtcode TYPE_SPECIFIER_IVEC3 7\n" +".emtcode TYPE_SPECIFIER_IVEC4 8\n" +".emtcode TYPE_SPECIFIER_FLOAT 9\n" +".emtcode TYPE_SPECIFIER_VEC2 10\n" +".emtcode TYPE_SPECIFIER_VEC3 11\n" +".emtcode TYPE_SPECIFIER_VEC4 12\n" +".emtcode TYPE_SPECIFIER_MAT2 13\n" +".emtcode TYPE_SPECIFIER_MAT3 14\n" +".emtcode TYPE_SPECIFIER_MAT4 15\n" +".emtcode TYPE_SPECIFIER_SAMPLER1D 16\n" +".emtcode TYPE_SPECIFIER_SAMPLER2D 17\n" +".emtcode TYPE_SPECIFIER_SAMPLER3D 18\n" +".emtcode TYPE_SPECIFIER_SAMPLERCUBE 19\n" +".emtcode TYPE_SPECIFIER_SAMPLER1DSHADOW 20\n" +".emtcode TYPE_SPECIFIER_SAMPLER2DSHADOW 21\n" +".emtcode TYPE_SPECIFIER_SAMPLER2DRECT 22\n" +".emtcode TYPE_SPECIFIER_SAMPLER2DRECTSHADOW 23\n" +".emtcode TYPE_SPECIFIER_STRUCT 24\n" +".emtcode TYPE_SPECIFIER_TYPENAME 25\n" +".emtcode TYPE_SPECIFIER_MAT23 26\n" +".emtcode TYPE_SPECIFIER_MAT32 27\n" +".emtcode TYPE_SPECIFIER_MAT24 28\n" +".emtcode TYPE_SPECIFIER_MAT42 29\n" +".emtcode TYPE_SPECIFIER_MAT34 30\n" +".emtcode TYPE_SPECIFIER_MAT43 31\n" +".emtcode TYPE_SPECIFIER_NONARRAY 0\n" +".emtcode TYPE_SPECIFIER_ARRAY 1\n" +".emtcode FIELD_NONE 0\n" +".emtcode FIELD_NEXT 1\n" +".emtcode FIELD_ARRAY 2\n" +".emtcode OP_END 0\n" +".emtcode OP_BLOCK_BEGIN_NO_NEW_SCOPE 1\n" +".emtcode OP_BLOCK_BEGIN_NEW_SCOPE 2\n" +".emtcode OP_DECLARE 3\n" +".emtcode OP_ASM 4\n" +".emtcode OP_BREAK 5\n" +".emtcode OP_CONTINUE 6\n" +".emtcode OP_DISCARD 7\n" +".emtcode OP_RETURN 8\n" +".emtcode OP_EXPRESSION 9\n" +".emtcode OP_IF 10\n" +".emtcode OP_WHILE 11\n" +".emtcode OP_DO 12\n" +".emtcode OP_FOR 13\n" +".emtcode OP_PUSH_VOID 14\n" +".emtcode OP_PUSH_BOOL 15\n" +".emtcode OP_PUSH_INT 16\n" +".emtcode OP_PUSH_FLOAT 17\n" +".emtcode OP_PUSH_IDENTIFIER 18\n" +".emtcode OP_SEQUENCE 19\n" +".emtcode OP_ASSIGN 20\n" +".emtcode OP_ADDASSIGN 21\n" +".emtcode OP_SUBASSIGN 22\n" +".emtcode OP_MULASSIGN 23\n" +".emtcode OP_DIVASSIGN 24\n" +".emtcode OP_SELECT 31\n" +".emtcode OP_LOGICALOR 32\n" +".emtcode OP_LOGICALXOR 33\n" +".emtcode OP_LOGICALAND 34\n" +".emtcode OP_EQUAL 38\n" +".emtcode OP_NOTEQUAL 39\n" +".emtcode OP_LESS 40\n" +".emtcode OP_GREATER 41\n" +".emtcode OP_LESSEQUAL 42\n" +".emtcode OP_GREATEREQUAL 43\n" +".emtcode OP_ADD 46\n" +".emtcode OP_SUBTRACT 47\n" +".emtcode OP_MULTIPLY 48\n" +".emtcode OP_DIVIDE 49\n" +".emtcode OP_PREINCREMENT 51\n" +".emtcode OP_PREDECREMENT 52\n" +".emtcode OP_PLUS 53\n" +".emtcode OP_MINUS 54\n" +".emtcode OP_NOT 56\n" +".emtcode OP_SUBSCRIPT 57\n" +".emtcode OP_CALL 58\n" +".emtcode OP_FIELD 59\n" +".emtcode OP_POSTINCREMENT 60\n" +".emtcode OP_POSTDECREMENT 61\n" +".emtcode OP_PRECISION 62\n" +".emtcode OP_METHOD 63\n" +".emtcode PARAM_QUALIFIER_IN 0\n" +".emtcode PARAM_QUALIFIER_OUT 1\n" +".emtcode PARAM_QUALIFIER_INOUT 2\n" +".emtcode PARAMETER_NONE 0\n" +".emtcode PARAMETER_NEXT 1\n" +".emtcode PARAMETER_ARRAY_NOT_PRESENT 0\n" +".emtcode PARAMETER_ARRAY_PRESENT 1\n" +".errtext INVALID_EXTERNAL_DECLARATION \"2001: Syntax error.\"\n" +".errtext INVALID_OPERATOR_OVERRIDE \"2002: Invalid operator override.\"\n" +".errtext LBRACE_EXPECTED \"2003: '{' expected but '$err_token$' found.\"\n" +".errtext LPAREN_EXPECTED \"2004: '(' expected but '$err_token$' found.\"\n" +".errtext RPAREN_EXPECTED \"2005: ')' expected but '$err_token$' found.\"\n" +".errtext INVALID_PRECISION \"2006: Invalid precision specifier '$err_token$'.\"\n" +".errtext INVALID_PRECISION_TYPE \"2007: Invalid precision type '$err_token$'.\"\n" +".regbyte parsing_builtin 0\n" +".regbyte shader_type 0\n" +"variable_identifier\n" +" identifier .emit OP_PUSH_IDENTIFIER;\n" +"primary_expression\n" +" floatconstant .or boolconstant .or intconstant .or variable_identifier .or primary_expression_1;\n" +"primary_expression_1\n" +" lparen .and expression .and rparen;\n" +"postfix_expression\n" +" postfix_expression_1 .and .loop postfix_expression_2;\n" +"postfix_expression_1\n" +" function_call .or primary_expression;\n" +"postfix_expression_2\n" +" postfix_expression_3 .or postfix_expression_4 .or\n" +" plusplus .emit OP_POSTINCREMENT .or\n" +" minusminus .emit OP_POSTDECREMENT;\n" +"postfix_expression_3\n" +" lbracket .and integer_expression .and rbracket .emit OP_SUBSCRIPT;\n" +"postfix_expression_4\n" +" dot .and field_selection .emit OP_FIELD;\n" +"integer_expression\n" +" expression;\n" +"function_call\n" +" function_call_or_method;\n" +"function_call_or_method\n" +" regular_function_call .or method_call;\n" +"method_call\n" +" identifier .emit OP_METHOD .and dot .and function_call_generic .and .true .emit OP_END;\n" +"regular_function_call\n" +" function_call_generic .emit OP_CALL .and .true .emit OP_END;\n" +"function_call_generic\n" +" function_call_generic_1 .or function_call_generic_2;\n" +"function_call_generic_1\n" +" function_call_header_with_parameters .and rparen .error RPAREN_EXPECTED;\n" +"function_call_generic_2\n" +" function_call_header_no_parameters .and rparen .error RPAREN_EXPECTED;\n" +"function_call_header_no_parameters\n" +" function_call_header .and function_call_header_no_parameters_1;\n" +"function_call_header_no_parameters_1\n" +" \"void\" .or .true;\n" +"function_call_header_with_parameters\n" +" function_call_header .and assignment_expression .and .true .emit OP_END .and\n" +" .loop function_call_header_with_parameters_1;\n" +"function_call_header_with_parameters_1\n" +" comma .and assignment_expression .and .true .emit OP_END;\n" +"function_call_header\n" +" function_identifier .and lparen;\n" +"function_identifier\n" +" identifier .and function_identifier_opt_array;\n" +"function_identifier_opt_array\n" +" function_identifier_array .emit FUNCTION_CALL_ARRAY .or\n" +" .true .emit FUNCTION_CALL_NONARRAY;\n" +"function_identifier_array\n" +" lbracket .and constant_expression .and rbracket;\n" +"unary_expression\n" +" postfix_expression .or unary_expression_1 .or unary_expression_2 .or unary_expression_3 .or\n" +" unary_expression_4 .or unary_expression_5;\n" +"unary_expression_1\n" +" plusplus .and unary_expression .and .true .emit OP_PREINCREMENT;\n" +"unary_expression_2\n" +" minusminus .and unary_expression .and .true .emit OP_PREDECREMENT;\n" +"unary_expression_3\n" +" plus .and unary_expression .and .true .emit OP_PLUS;\n" +"unary_expression_4\n" +" minus .and unary_expression .and .true .emit OP_MINUS;\n" +"unary_expression_5\n" +" bang .and unary_expression .and .true .emit OP_NOT;\n" +"multiplicative_expression\n" +" unary_expression .and .loop multiplicative_expression_1;\n" +"multiplicative_expression_1\n" +" multiplicative_expression_2 .or multiplicative_expression_3;\n" +"multiplicative_expression_2\n" +" star .and unary_expression .and .true .emit OP_MULTIPLY;\n" +"multiplicative_expression_3\n" +" slash .and unary_expression .and .true .emit OP_DIVIDE;\n" +"additive_expression\n" +" multiplicative_expression .and .loop additive_expression_1;\n" +"additive_expression_1\n" +" additive_expression_2 .or additive_expression_3;\n" +"additive_expression_2\n" +" plus .and multiplicative_expression .and .true .emit OP_ADD;\n" +"additive_expression_3\n" +" minus .and multiplicative_expression .and .true .emit OP_SUBTRACT;\n" +"shift_expression\n" +" additive_expression;\n" +"relational_expression\n" +" shift_expression .and .loop relational_expression_1;\n" +"relational_expression_1\n" +" relational_expression_2 .or relational_expression_3 .or relational_expression_4 .or\n" +" relational_expression_5;\n" +"relational_expression_2\n" +" lessequals .and shift_expression .and .true .emit OP_LESSEQUAL;\n" +"relational_expression_3\n" +" greaterequals .and shift_expression .and .true .emit OP_GREATEREQUAL;\n" +"relational_expression_4\n" +" less .and shift_expression .and .true .emit OP_LESS;\n" +"relational_expression_5\n" +" greater .and shift_expression .and .true .emit OP_GREATER;\n" +"equality_expression\n" +" relational_expression .and .loop equality_expression_1;\n" +"equality_expression_1\n" +" equality_expression_2 .or equality_expression_3;\n" +"equality_expression_2\n" +" equalsequals .and relational_expression .and .true .emit OP_EQUAL;\n" +"equality_expression_3\n" +" bangequals .and relational_expression .and .true .emit OP_NOTEQUAL;\n" +"and_expression\n" +" equality_expression;\n" +"exclusive_or_expression\n" +" and_expression;\n" +"inclusive_or_expression\n" +" exclusive_or_expression;\n" +"logical_and_expression\n" +" inclusive_or_expression .and .loop logical_and_expression_1;\n" +"logical_and_expression_1\n" +" ampersandampersand .and inclusive_or_expression .and .true .emit OP_LOGICALAND;\n" +"logical_xor_expression\n" +" logical_and_expression .and .loop logical_xor_expression_1;\n" +"logical_xor_expression_1\n" +" caretcaret .and logical_and_expression .and .true .emit OP_LOGICALXOR;\n" +"logical_or_expression\n" +" logical_xor_expression .and .loop logical_or_expression_1;\n" +"logical_or_expression_1\n" +" barbar .and logical_xor_expression .and .true .emit OP_LOGICALOR;\n" +"conditional_expression\n" +" logical_or_expression .and .loop conditional_expression_1;\n" +"conditional_expression_1\n" +" question .and expression .and colon .and conditional_expression .and .true .emit OP_SELECT;\n" +"assignment_expression\n" +" assignment_expression_1 .or assignment_expression_2 .or assignment_expression_3 .or\n" +" assignment_expression_4 .or assignment_expression_5 .or conditional_expression;\n" +"assignment_expression_1\n" +" unary_expression .and equals .and assignment_expression .and .true .emit OP_ASSIGN;\n" +"assignment_expression_2\n" +" unary_expression .and starequals .and assignment_expression .and .true .emit OP_MULASSIGN;\n" +"assignment_expression_3\n" +" unary_expression .and slashequals .and assignment_expression .and .true .emit OP_DIVASSIGN;\n" +"assignment_expression_4\n" +" unary_expression .and plusequals .and assignment_expression .and .true .emit OP_ADDASSIGN;\n" +"assignment_expression_5\n" +" unary_expression .and minusequals .and assignment_expression .and .true .emit OP_SUBASSIGN;\n" +"expression\n" +" assignment_expression .and .loop expression_1;\n" +"expression_1\n" +" comma .and assignment_expression .and .true .emit OP_SEQUENCE;\n" +"constant_expression\n" +" conditional_expression .and .true .emit OP_END;\n" +"declaration\n" +" declaration_1 .or declaration_2;\n" +"declaration_1\n" +" function_prototype .emit DECLARATION_FUNCTION_PROTOTYPE .and semicolon;\n" +"declaration_2\n" +" init_declarator_list .emit DECLARATION_INIT_DECLARATOR_LIST .and semicolon;\n" +"function_prototype\n" +" function_prototype_1 .or function_prototype_2;\n" +"function_prototype_1\n" +" function_header .and \"void\" .and rparen .error RPAREN_EXPECTED .emit PARAMETER_NONE;\n" +"function_prototype_2\n" +" function_declarator .and rparen .error RPAREN_EXPECTED .emit PARAMETER_NONE;\n" +"function_declarator\n" +" function_header_with_parameters .or function_header;\n" +"function_header_with_parameters\n" +" function_header .and parameter_declaration .and .loop function_header_with_parameters_1;\n" +"function_header_with_parameters_1\n" +" comma .and parameter_declaration;\n" +"function_header\n" +" function_header_nospace .or function_header_space;\n" +"function_header_space\n" +" fully_specified_type_space .and space .and function_decl_identifier .and lparen;\n" +"function_header_nospace\n" +" fully_specified_type_nospace .and function_decl_identifier .and lparen;\n" +"function_decl_identifier\n" +" .if (parsing_builtin != 0) __operator .emit FUNCTION_OPERATOR .or\n" +" .if (parsing_builtin != 0) \"__constructor\" .emit FUNCTION_CONSTRUCTOR .or\n" +" identifier .emit FUNCTION_ORDINARY;\n" +"__operator\n" +" \"__operator\" .and overriden_operator .error INVALID_OPERATOR_OVERRIDE;\n" +"overriden_operator\n" +" plusplus .emit OPERATOR_INCREMENT .or\n" +" plusequals .emit OPERATOR_ADDASSIGN .or\n" +" plus .emit OPERATOR_PLUS .or\n" +" minusminus .emit OPERATOR_DECREMENT .or\n" +" minusequals .emit OPERATOR_SUBASSIGN .or\n" +" minus .emit OPERATOR_MINUS .or\n" +" bang .emit OPERATOR_NOT .or\n" +" starequals .emit OPERATOR_MULASSIGN .or\n" +" star .emit OPERATOR_MULTIPLY .or\n" +" slashequals .emit OPERATOR_DIVASSIGN .or\n" +" slash .emit OPERATOR_DIVIDE .or\n" +" lessequals .emit OPERATOR_LESSEQUAL .or\n" +" \n" +" \n" +" less .emit OPERATOR_LESS .or\n" +" greaterequals .emit OPERATOR_GREATEREQUAL .or\n" +" \n" +" \n" +" greater .emit OPERATOR_GREATER .or\n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" caretcaret .emit OPERATOR_LOGICALXOR ;\n" +"parameter_declarator\n" +" parameter_declarator_nospace .or parameter_declarator_space;\n" +"parameter_declarator_nospace\n" +" type_specifier_nospace .and identifier .and parameter_declarator_1;\n" +"parameter_declarator_space\n" +" type_specifier_space .and space .and identifier .and parameter_declarator_1;\n" +"parameter_declarator_1\n" +" parameter_declarator_2 .emit PARAMETER_ARRAY_PRESENT .or\n" +" .true .emit PARAMETER_ARRAY_NOT_PRESENT;\n" +"parameter_declarator_2\n" +" lbracket .and constant_expression .and rbracket;\n" +"parameter_declaration\n" +" parameter_declaration_1 .emit PARAMETER_NEXT;\n" +"parameter_declaration_1\n" +" parameter_declaration_2 .or parameter_declaration_3;\n" +"parameter_declaration_2\n" +" type_qualifier .and space .and parameter_qualifier .and parameter_declaration_4;\n" +"parameter_declaration_3\n" +" parameter_qualifier .emit TYPE_QUALIFIER_NONE .and parameter_declaration_4;\n" +"parameter_declaration_4\n" +" parameter_declaration_optprec .and parameter_declaration_rest;\n" +"parameter_declaration_optprec\n" +" parameter_declaration_prec .or .true .emit PRECISION_DEFAULT;\n" +"parameter_declaration_prec\n" +" precision .and space;\n" +"parameter_declaration_rest\n" +" parameter_declarator .or parameter_type_specifier;\n" +"parameter_qualifier\n" +" parameter_qualifier_1 .or .true .emit PARAM_QUALIFIER_IN;\n" +"parameter_qualifier_1\n" +" parameter_qualifier_2 .and space;\n" +"parameter_qualifier_2\n" +" \"in\" .emit PARAM_QUALIFIER_IN .or\n" +" \"out\" .emit PARAM_QUALIFIER_OUT .or\n" +" \"inout\" .emit PARAM_QUALIFIER_INOUT;\n" +"parameter_type_specifier\n" +" parameter_type_specifier_1 .and .true .emit '\\0' .and parameter_type_specifier_2;\n" +"parameter_type_specifier_1\n" +" type_specifier_nospace .or type_specifier_space;\n" +"parameter_type_specifier_2\n" +" parameter_type_specifier_3 .emit PARAMETER_ARRAY_PRESENT .or\n" +" .true .emit PARAMETER_ARRAY_NOT_PRESENT;\n" +"parameter_type_specifier_3\n" +" lbracket .and constant_expression .and rbracket;\n" +"init_declarator_list\n" +" single_declaration .and .loop init_declarator_list_1 .emit DECLARATOR_NEXT .and\n" +" .true .emit DECLARATOR_NONE;\n" +"init_declarator_list_1\n" +" comma .and identifier .emit VARIABLE_IDENTIFIER .and init_declarator_list_2;\n" +"init_declarator_list_2\n" +" init_declarator_list_3 .or init_declarator_list_4 .or .true .emit VARIABLE_NONE;\n" +"init_declarator_list_3\n" +" equals .and initializer .emit VARIABLE_INITIALIZER;\n" +"init_declarator_list_4\n" +" lbracket .and init_declarator_list_5 .and rbracket;\n" +"init_declarator_list_5\n" +" constant_expression .emit VARIABLE_ARRAY_EXPLICIT .or .true .emit VARIABLE_ARRAY_UNKNOWN;\n" +"single_declaration\n" +" single_declaration_nospace .or single_declaration_space;\n" +"single_declaration_space\n" +" fully_specified_type_space .and single_declaration_space_1;\n" +"single_declaration_nospace\n" +" fully_specified_type_nospace .and single_declaration_nospace_1;\n" +"single_declaration_space_1\n" +" single_declaration_space_2 .emit VARIABLE_IDENTIFIER .or .true .emit VARIABLE_NONE;\n" +"single_declaration_nospace_1\n" +" single_declaration_nospace_2 .emit VARIABLE_IDENTIFIER .or .true .emit VARIABLE_NONE;\n" +"single_declaration_space_2\n" +" space .and identifier .and single_declaration_3;\n" +"single_declaration_nospace_2\n" +" identifier .and single_declaration_3;\n" +"single_declaration_3\n" +" single_declaration_4 .or single_declaration_5 .or .true .emit VARIABLE_NONE;\n" +"single_declaration_4\n" +" equals .and initializer .emit VARIABLE_INITIALIZER;\n" +"single_declaration_5\n" +" lbracket .and single_declaration_6 .and rbracket;\n" +"single_declaration_6\n" +" constant_expression .emit VARIABLE_ARRAY_EXPLICIT .or .true .emit VARIABLE_ARRAY_UNKNOWN;\n" +"fully_specified_type_space\n" +" fully_specified_type_optinvariant .and fully_specified_type_optcentroid .and fully_specified_type_optqual .and fully_specified_type_optprec .and type_specifier_space;\n" +"fully_specified_type_nospace\n" +" fully_specified_type_optinvariant .and fully_specified_type_optcentroid .and fully_specified_type_optqual .and fully_specified_type_optprec .and type_specifier_nospace;\n" +"fully_specified_type_optinvariant\n" +" fully_specified_type_invariant .or .true .emit TYPE_VARIANT;\n" +"fully_specified_type_invariant\n" +" invariant_qualifier .and space;\n" +"fully_specified_type_optcentroid\n" +" fully_specified_type_centroid .or .true .emit TYPE_CENTER;\n" +"fully_specified_type_centroid\n" +" centroid_qualifier .and space;\n" +"fully_specified_type_optqual\n" +" fully_specified_type_qual .or .true .emit TYPE_QUALIFIER_NONE;\n" +"fully_specified_type_qual\n" +" type_qualifier .and space;\n" +"fully_specified_type_optprec\n" +" fully_specified_type_prec .or .true .emit PRECISION_DEFAULT;\n" +"fully_specified_type_prec\n" +" precision .and space;\n" +"invariant_qualifier\n" +" \"invariant\" .emit TYPE_INVARIANT;\n" +"centroid_qualifier\n" +" \"centroid\" .emit TYPE_CENTROID;\n" +"type_qualifier\n" +" \"const\" .emit TYPE_QUALIFIER_CONST .or\n" +" .if (shader_type == 2) \"attribute\" .emit TYPE_QUALIFIER_ATTRIBUTE .or\n" +" \"varying\" .emit TYPE_QUALIFIER_VARYING .or\n" +" \"uniform\" .emit TYPE_QUALIFIER_UNIFORM .or\n" +" .if (parsing_builtin != 0) \"__fixed_output\" .emit TYPE_QUALIFIER_FIXEDOUTPUT .or\n" +" .if (parsing_builtin != 0) \"__fixed_input\" .emit TYPE_QUALIFIER_FIXEDINPUT;\n" +"type_specifier_nonarray_space\n" +" \"void\" .emit TYPE_SPECIFIER_VOID .or\n" +" \"float\" .emit TYPE_SPECIFIER_FLOAT .or\n" +" \"int\" .emit TYPE_SPECIFIER_INT .or\n" +" \"bool\" .emit TYPE_SPECIFIER_BOOL .or\n" +" \"vec2\" .emit TYPE_SPECIFIER_VEC2 .or\n" +" \"vec3\" .emit TYPE_SPECIFIER_VEC3 .or\n" +" \"vec4\" .emit TYPE_SPECIFIER_VEC4 .or\n" +" \"bvec2\" .emit TYPE_SPECIFIER_BVEC2 .or\n" +" \"bvec3\" .emit TYPE_SPECIFIER_BVEC3 .or\n" +" \"bvec4\" .emit TYPE_SPECIFIER_BVEC4 .or\n" +" \"ivec2\" .emit TYPE_SPECIFIER_IVEC2 .or\n" +" \"ivec3\" .emit TYPE_SPECIFIER_IVEC3 .or\n" +" \"ivec4\" .emit TYPE_SPECIFIER_IVEC4 .or\n" +" \"mat2\" .emit TYPE_SPECIFIER_MAT2 .or\n" +" \"mat3\" .emit TYPE_SPECIFIER_MAT3 .or\n" +" \"mat4\" .emit TYPE_SPECIFIER_MAT4 .or\n" +" \"mat2x3\" .emit TYPE_SPECIFIER_MAT23 .or\n" +" \"mat3x2\" .emit TYPE_SPECIFIER_MAT32 .or\n" +" \"mat2x4\" .emit TYPE_SPECIFIER_MAT24 .or\n" +" \"mat4x2\" .emit TYPE_SPECIFIER_MAT42 .or\n" +" \"mat3x4\" .emit TYPE_SPECIFIER_MAT34 .or\n" +" \"mat4x3\" .emit TYPE_SPECIFIER_MAT43 .or\n" +" \"sampler1D\" .emit TYPE_SPECIFIER_SAMPLER1D .or\n" +" \"sampler2D\" .emit TYPE_SPECIFIER_SAMPLER2D .or\n" +" \"sampler3D\" .emit TYPE_SPECIFIER_SAMPLER3D .or\n" +" \"samplerCube\" .emit TYPE_SPECIFIER_SAMPLERCUBE .or\n" +" \"sampler1DShadow\" .emit TYPE_SPECIFIER_SAMPLER1DSHADOW .or\n" +" \"sampler2DShadow\" .emit TYPE_SPECIFIER_SAMPLER2DSHADOW .or\n" +" \"sampler2DRect\" .emit TYPE_SPECIFIER_SAMPLER2DRECT .or\n" +" \"sampler2DRectShadow\" .emit TYPE_SPECIFIER_SAMPLER2DRECTSHADOW .or\n" +" type_name .emit TYPE_SPECIFIER_TYPENAME;\n" +"type_specifier_nonarray_nospace\n" +" struct_specifier .emit TYPE_SPECIFIER_STRUCT;\n" +"type_specifier_nonarray\n" +" type_specifier_nonarray_nospace .or type_specifier_nonarray_space;\n" +"type_specifier_space\n" +" type_specifier_nonarray_space .and .true .emit TYPE_SPECIFIER_NONARRAY;\n" +"type_specifier_nospace\n" +" type_specifier_nospace_array .or type_specifier_nospace_1;\n" +"type_specifier_nospace_1\n" +" type_specifier_nonarray_nospace .and .true .emit TYPE_SPECIFIER_NONARRAY;\n" +"type_specifier_nospace_array\n" +" type_specifier_nonarray .and lbracket .emit TYPE_SPECIFIER_ARRAY .and constant_expression .and rbracket;\n" +"struct_specifier\n" +" \"struct\" .and struct_specifier_1 .and optional_space .and lbrace .error LBRACE_EXPECTED .and\n" +" struct_declaration_list .and rbrace .emit FIELD_NONE;\n" +"struct_specifier_1\n" +" struct_specifier_2 .or .true .emit '\\0';\n" +"struct_specifier_2\n" +" space .and identifier;\n" +"struct_declaration_list\n" +" struct_declaration .and .loop struct_declaration .emit FIELD_NEXT;\n" +"struct_declaration\n" +" struct_declaration_nospace .or struct_declaration_space;\n" +"struct_declaration_space\n" +" type_specifier_space .and space .and struct_declarator_list .and semicolon .emit FIELD_NONE;\n" +"struct_declaration_nospace\n" +" type_specifier_nospace .and struct_declarator_list .and semicolon .emit FIELD_NONE;\n" +"struct_declarator_list\n" +" struct_declarator .and .loop struct_declarator_list_1 .emit FIELD_NEXT;\n" +"struct_declarator_list_1\n" +" comma .and struct_declarator;\n" +"struct_declarator\n" +" identifier .and struct_declarator_1;\n" +"struct_declarator_1\n" +" struct_declarator_2 .emit FIELD_ARRAY .or .true .emit FIELD_NONE;\n" +"struct_declarator_2\n" +" lbracket .and constant_expression .and rbracket;\n" +"initializer\n" +" assignment_expression .and .true .emit OP_END;\n" +"declaration_statement\n" +" declaration;\n" +"statement\n" +" compound_statement .or simple_statement;\n" +"statement_space\n" +" compound_statement .or statement_space_1;\n" +"statement_space_1\n" +" space .and simple_statement;\n" +"simple_statement\n" +" .if (parsing_builtin != 0) __asm_statement .emit OP_ASM .or\n" +" selection_statement .or\n" +" iteration_statement .or\n" +" precision_stmt .emit OP_PRECISION .or\n" +" jump_statement .or\n" +" expression_statement .emit OP_EXPRESSION .or\n" +" declaration_statement .emit OP_DECLARE;\n" +"compound_statement\n" +" compound_statement_1 .emit OP_BLOCK_BEGIN_NEW_SCOPE .and .true .emit OP_END;\n" +"compound_statement_1\n" +" compound_statement_2 .or compound_statement_3;\n" +"compound_statement_2\n" +" lbrace .and rbrace;\n" +"compound_statement_3\n" +" lbrace .and statement_list .and rbrace;\n" +"compound_statement_no_new_scope\n" +" compound_statement_no_new_scope_1 .emit OP_BLOCK_BEGIN_NO_NEW_SCOPE .and .true .emit OP_END;\n" +"compound_statement_no_new_scope_1\n" +" compound_statement_no_new_scope_2 .or compound_statement_no_new_scope_3;\n" +"compound_statement_no_new_scope_2\n" +" lbrace .and rbrace;\n" +"compound_statement_no_new_scope_3\n" +" lbrace .and statement_list .and rbrace;\n" +"statement_list\n" +" statement .and .loop statement;\n" +"expression_statement\n" +" expression_statement_1 .or expression_statement_2;\n" +"expression_statement_1\n" +" semicolon .emit OP_PUSH_VOID .emit OP_END;\n" +"expression_statement_2\n" +" expression .and semicolon .emit OP_END;\n" +"selection_statement\n" +" \"if\" .emit OP_IF .and lparen .error LPAREN_EXPECTED .and expression .and\n" +" rparen .error RPAREN_EXPECTED .emit OP_END .and selection_rest_statement;\n" +"selection_rest_statement\n" +" statement .and selection_rest_statement_1;\n" +"selection_rest_statement_1\n" +" selection_rest_statement_2 .or .true .emit OP_EXPRESSION .emit OP_PUSH_VOID .emit OP_END;\n" +"selection_rest_statement_2\n" +" \"else\" .and optional_space .and statement;\n" +"condition\n" +" condition_1 .emit OP_DECLARE .emit DECLARATION_INIT_DECLARATOR_LIST .or\n" +" condition_3 .emit OP_EXPRESSION;\n" +"condition_1\n" +" condition_1_nospace .or condition_1_space;\n" +"condition_1_nospace\n" +" fully_specified_type_nospace .and condition_2;\n" +"condition_1_space\n" +" fully_specified_type_space .and space .and condition_2;\n" +"condition_2\n" +" identifier .emit VARIABLE_IDENTIFIER .and equals .emit VARIABLE_INITIALIZER .and\n" +" initializer .and .true .emit DECLARATOR_NONE;\n" +"condition_3\n" +" expression .and .true .emit OP_END;\n" +"iteration_statement\n" +" iteration_statement_1 .or iteration_statement_2 .or iteration_statement_3;\n" +"iteration_statement_1\n" +" \"while\" .emit OP_WHILE .and lparen .error LPAREN_EXPECTED .and condition .and\n" +" rparen .error RPAREN_EXPECTED .and statement;\n" +"iteration_statement_2\n" +" \"do\" .emit OP_DO .and statement_space .and \"while\" .and lparen .error LPAREN_EXPECTED .and\n" +" expression .and rparen .error RPAREN_EXPECTED .emit OP_END .and semicolon;\n" +"iteration_statement_3\n" +" \"for\" .emit OP_FOR .and lparen .error LPAREN_EXPECTED .and for_init_statement .and\n" +" for_rest_statement .and rparen .error RPAREN_EXPECTED .and statement;\n" +"for_init_statement\n" +" expression_statement .emit OP_EXPRESSION .or declaration_statement .emit OP_DECLARE;\n" +"conditionopt\n" +" condition .or\n" +" .true .emit OP_EXPRESSION .emit OP_PUSH_BOOL .emit 2 .emit '1' .emit '\\0' .emit OP_END;\n" +"for_rest_statement\n" +" conditionopt .and semicolon .and for_rest_statement_1;\n" +"for_rest_statement_1\n" +" for_rest_statement_2 .or .true .emit OP_PUSH_VOID .emit OP_END;\n" +"for_rest_statement_2\n" +" expression .and .true .emit OP_END;\n" +"jump_statement\n" +" jump_statement_1 .or jump_statement_2 .or jump_statement_3 .or jump_statement_4 .or\n" +" .if (shader_type == 1) jump_statement_5;\n" +"jump_statement_1\n" +" \"continue\" .and semicolon .emit OP_CONTINUE;\n" +"jump_statement_2\n" +" \"break\" .and semicolon .emit OP_BREAK;\n" +"jump_statement_3\n" +" \"return\" .emit OP_RETURN .and optional_space .and expression .and semicolon .emit OP_END;\n" +"jump_statement_4\n" +" \"return\" .emit OP_RETURN .and semicolon .emit OP_PUSH_VOID .emit OP_END;\n" +"jump_statement_5\n" +" \"discard\" .and semicolon .emit OP_DISCARD;\n" +"__asm_statement\n" +" \"__asm\" .and space .and identifier .and space .and asm_arguments .and semicolon .emit OP_END;\n" +"asm_arguments\n" +" asm_argument .and .true .emit OP_END .and .loop asm_arguments_1;\n" +"asm_arguments_1\n" +" comma .and asm_argument .and .true .emit OP_END;\n" +"asm_argument\n" +" var_with_field .or\n" +" variable_identifier .or\n" +" floatconstant;\n" +"var_with_field\n" +" variable_identifier .and dot .and field_selection .emit OP_FIELD;\n" +"translation_unit\n" +" optional_space .emit REVISION .and external_declaration .error INVALID_EXTERNAL_DECLARATION .and\n" +" .loop external_declaration .and optional_space .and\n" +" '\\0' .error INVALID_EXTERNAL_DECLARATION .emit EXTERNAL_NULL;\n" +"external_declaration\n" +" precision_stmt .emit DEFAULT_PRECISION .or\n" +" function_definition .emit EXTERNAL_FUNCTION_DEFINITION .or\n" +" invariant_stmt .emit INVARIANT_STMT .or\n" +" declaration .emit EXTERNAL_DECLARATION;\n" +"precision_stmt\n" +" \"precision\" .and space .and precision .error INVALID_PRECISION .and space .and prectype .error INVALID_PRECISION_TYPE .and semicolon;\n" +"precision\n" +" \"lowp\" .emit PRECISION_LOW .or\n" +" \"mediump\" .emit PRECISION_MEDIUM .or\n" +" \"highp\" .emit PRECISION_HIGH;\n" +"prectype\n" +" \"int\" .emit TYPE_SPECIFIER_INT .or\n" +" \"float\" .emit TYPE_SPECIFIER_FLOAT .or\n" +" \"sampler1D\" .emit TYPE_SPECIFIER_SAMPLER1D .or\n" +" \"sampler2D\" .emit TYPE_SPECIFIER_SAMPLER2D .or\n" +" \"sampler3D\" .emit TYPE_SPECIFIER_SAMPLER3D .or\n" +" \"samplerCube\" .emit TYPE_SPECIFIER_SAMPLERCUBE .or\n" +" \"sampler1DShadow\" .emit TYPE_SPECIFIER_SAMPLER1DSHADOW .or\n" +" \"sampler2DShadow\" .emit TYPE_SPECIFIER_SAMPLER2DSHADOW .or\n" +" \"sampler2DRect\" .emit TYPE_SPECIFIER_SAMPLER2DRECT .or\n" +" \"sampler2DRectShadow\" .emit TYPE_SPECIFIER_SAMPLER2DRECTSHADOW;\n" +"invariant_stmt\n" +" \"invariant\" .and space .and identifier .and semicolon;\n" +"function_definition\n" +" function_prototype .and compound_statement_no_new_scope;\n" +"digit_oct\n" +" '0'-'7';\n" +"digit_dec\n" +" '0'-'9';\n" +"digit_hex\n" +" '0'-'9' .or 'A'-'F' .or 'a'-'f';\n" +"id_character_first\n" +" 'a'-'z' .or 'A'-'Z' .or '_';\n" +"id_character_next\n" +" id_character_first .or digit_dec;\n" +"identifier\n" +" id_character_first .emit * .and .loop id_character_next .emit * .and .true .emit '\\0';\n" +"float\n" +" float_1 .or float_2 .or float_3;\n" +"float_1\n" +" float_fractional_constant .and float_optional_exponent_part .and optional_f_suffix;\n" +"float_2\n" +" float_digit_sequence .and .true .emit '\\0' .and float_exponent_part .and optional_f_suffix;\n" +"float_3\n" +" float_digit_sequence .and .true .emit '\\0' .and 'f' .emit '\\0';\n" +"float_fractional_constant\n" +" float_fractional_constant_1 .or float_fractional_constant_2 .or float_fractional_constant_3;\n" +"float_fractional_constant_1\n" +" float_digit_sequence .and '.' .and float_digit_sequence;\n" +"float_fractional_constant_2\n" +" float_digit_sequence .and '.' .and .true .emit '\\0';\n" +"float_fractional_constant_3\n" +" '.' .emit '\\0' .and float_digit_sequence;\n" +"float_optional_exponent_part\n" +" float_exponent_part .or .true .emit '\\0';\n" +"float_digit_sequence\n" +" digit_dec .emit * .and .loop digit_dec .emit * .and .true .emit '\\0';\n" +"float_exponent_part\n" +" float_exponent_part_1 .or float_exponent_part_2;\n" +"float_exponent_part_1\n" +" 'e' .and float_optional_sign .and float_digit_sequence;\n" +"float_exponent_part_2\n" +" 'E' .and float_optional_sign .and float_digit_sequence;\n" +"float_optional_sign\n" +" float_sign .or .true;\n" +"float_sign\n" +" '+' .or '-' .emit '-';\n" +"optional_f_suffix\n" +" 'f' .or .true;\n" +"integer\n" +" integer_hex .or integer_oct .or integer_dec;\n" +"integer_hex\n" +" '0' .and integer_hex_1 .emit 0x10 .and digit_hex .emit * .and .loop digit_hex .emit * .and\n" +" .true .emit '\\0';\n" +"integer_hex_1\n" +" 'x' .or 'X';\n" +"integer_oct\n" +" '0' .emit 8 .emit * .and .loop digit_oct .emit * .and .true .emit '\\0';\n" +"integer_dec\n" +" digit_dec .emit 10 .emit * .and .loop digit_dec .emit * .and .true .emit '\\0';\n" +"boolean\n" +" \"true\" .emit 2 .emit '1' .emit '\\0' .or\n" +" \"false\" .emit 2 .emit '0' .emit '\\0';\n" +"type_name\n" +" identifier;\n" +"field_selection\n" +" identifier;\n" +"floatconstant\n" +" float .emit OP_PUSH_FLOAT;\n" +"intconstant\n" +" integer .emit OP_PUSH_INT;\n" +"boolconstant\n" +" boolean .emit OP_PUSH_BOOL;\n" +"optional_space\n" +" .loop single_space;\n" +"space\n" +" single_space .and .loop single_space;\n" +"single_space\n" +" white_char .or c_style_comment_block .or cpp_style_comment_block;\n" +"white_char\n" +" ' ' .or '\\t' .or new_line .or '\\v' .or '\\f';\n" +"new_line\n" +" cr_lf .or lf_cr .or '\\n' .or '\\r';\n" +"cr_lf\n" +" '\\r' .and '\\n';\n" +"lf_cr\n" +" '\\n' .and '\\r';\n" +"c_style_comment_block\n" +" '/' .and '*' .and c_style_comment_rest;\n" +"c_style_comment_rest\n" +" .loop c_style_comment_char_no_star .and c_style_comment_rest_1;\n" +"c_style_comment_rest_1\n" +" c_style_comment_end .or c_style_comment_rest_2;\n" +"c_style_comment_rest_2\n" +" '*' .and c_style_comment_rest;\n" +"c_style_comment_char_no_star\n" +" '\\x2B'-'\\xFF' .or '\\x01'-'\\x29';\n" +"c_style_comment_end\n" +" '*' .and '/';\n" +"cpp_style_comment_block\n" +" '/' .and '/' .and cpp_style_comment_block_1;\n" +"cpp_style_comment_block_1\n" +" cpp_style_comment_block_2 .or cpp_style_comment_block_3;\n" +"cpp_style_comment_block_2\n" +" .loop cpp_style_comment_char .and new_line;\n" +"cpp_style_comment_block_3\n" +" .loop cpp_style_comment_char;\n" +"cpp_style_comment_char\n" +" '\\x0E'-'\\xFF' .or '\\x01'-'\\x09' .or '\\x0B'-'\\x0C';\n" +"ampersandampersand\n" +" optional_space .and '&' .and '&' .and optional_space;\n" +"barbar\n" +" optional_space .and '|' .and '|' .and optional_space;\n" +"bang\n" +" optional_space .and '!' .and optional_space;\n" +"bangequals\n" +" optional_space .and '!' .and '=' .and optional_space;\n" +"caretcaret\n" +" optional_space .and '^' .and '^' .and optional_space;\n" +"colon\n" +" optional_space .and ':' .and optional_space;\n" +"comma\n" +" optional_space .and ',' .and optional_space;\n" +"dot\n" +" optional_space .and '.' .and optional_space;\n" +"equals\n" +" optional_space .and '=' .and optional_space;\n" +"equalsequals\n" +" optional_space .and '=' .and '=' .and optional_space;\n" +"greater\n" +" optional_space .and '>' .and optional_space;\n" +"greaterequals\n" +" optional_space .and '>' .and '=' .and optional_space;\n" +"lbrace\n" +" optional_space .and '{' .and optional_space;\n" +"lbracket\n" +" optional_space .and '[' .and optional_space;\n" +"less\n" +" optional_space .and '<' .and optional_space;\n" +"lessequals\n" +" optional_space .and '<' .and '=' .and optional_space;\n" +"lparen\n" +" optional_space .and '(' .and optional_space;\n" +"minus\n" +" optional_space .and '-' .and optional_space;\n" +"minusequals\n" +" optional_space .and '-' .and '=' .and optional_space;\n" +"minusminus\n" +" optional_space .and '-' .and '-' .and optional_space;\n" +"plus\n" +" optional_space .and '+' .and optional_space;\n" +"plusequals\n" +" optional_space .and '+' .and '=' .and optional_space;\n" +"plusplus\n" +" optional_space .and '+' .and '+' .and optional_space;\n" +"question\n" +" optional_space .and '?' .and optional_space;\n" +"rbrace\n" +" optional_space .and '}' .and optional_space;\n" +"rbracket\n" +" optional_space .and ']' .and optional_space;\n" +"rparen\n" +" optional_space .and ')' .and optional_space;\n" +"semicolon\n" +" optional_space .and ';' .and optional_space;\n" +"slash\n" +" optional_space .and '/' .and optional_space;\n" +"slashequals\n" +" optional_space .and '/' .and '=' .and optional_space;\n" +"star\n" +" optional_space .and '*' .and optional_space;\n" +"starequals\n" +" optional_space .and '*' .and '=' .and optional_space;\n" +".string string_lexer;\n" +"string_lexer\n" +" lex_first_identifier_character .and .loop lex_next_identifier_character;\n" +"lex_first_identifier_character\n" +" 'a'-'z' .or 'A'-'Z' .or '_';\n" +"lex_next_identifier_character\n" +" 'a'-'z' .or 'A'-'Z' .or '0'-'9' .or '_';\n" +"err_token\n" +" '~' .or '`' .or '!' .or '@' .or '#' .or '$' .or '%' .or '^' .or '&' .or '*' .or '(' .or ')' .or\n" +" '-' .or '+' .or '=' .or '|' .or '\\\\' .or '[' .or ']' .or '{' .or '}' .or ':' .or ';' .or '\"' .or\n" +" '\\'' .or '<' .or ',' .or '>' .or '.' .or '/' .or '?' .or err_identifier;\n" +"err_identifier\n" +" id_character_first .and .loop id_character_next;\n" +"" diff --git a/mesalib/src/mesa/shader/slang/library/slang_version.syn b/mesalib/src/mesa/shader/slang/library/slang_version.syn new file mode 100644 index 000000000..aaf8bef34 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_version.syn @@ -0,0 +1,118 @@ +/* + * Mesa 3-D graphics library + * Version: 6.3 + * + * Copyright (C) 2005 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_version.syn + * slang #version directive syntax + * \author Michal Krol + */ + +.syntax version_directive; + +version_directive + version_directive_1 .and .loop version_directive_2; +version_directive_1 + prior_optional_spaces .and optional_version_directive .and .true .emit $; +version_directive_2 + prior_optional_spaces .and version_directive_body .and .true .emit $; + +optional_version_directive + version_directive_body .or .true .emit 10 .emit 1; + +version_directive_body + '#' .and optional_space .and "version" .and space .and version_number .and optional_space .and + new_line; + +version_number + version_number_110; + +version_number_110 + leading_zeroes .and "110" .emit 10 .emit 1; + +leading_zeroes + .loop zero; + +zero + '0'; + +space + single_space .and .loop single_space; + +optional_space + .loop single_space; + +single_space + ' ' .or '\t'; + +prior_optional_spaces + .loop prior_space; + +prior_space + c_style_comment_block .or cpp_style_comment_block .or space .or new_line; + +c_style_comment_block + '/' .and '*' .and c_style_comment_rest; + +c_style_comment_rest + .loop c_style_comment_char_no_star .and c_style_comment_rest_1; +c_style_comment_rest_1 + c_style_comment_end .or c_style_comment_rest_2; +c_style_comment_rest_2 + '*' .and c_style_comment_rest; + +c_style_comment_char_no_star + '\x2B'-'\xFF' .or '\x01'-'\x29'; + +c_style_comment_end + '*' .and '/'; + +cpp_style_comment_block + '/' .and '/' .and cpp_style_comment_block_1; +cpp_style_comment_block_1 + cpp_style_comment_block_2 .or cpp_style_comment_block_3; +cpp_style_comment_block_2 + .loop cpp_style_comment_char .and new_line; +cpp_style_comment_block_3 + .loop cpp_style_comment_char; + +cpp_style_comment_char + '\x0E'-'\xFF' .or '\x01'-'\x09' .or '\x0B'-'\x0C'; + +new_line + cr_lf .or lf_cr .or '\n' .or '\r'; + +cr_lf + '\r' .and '\n'; + +lf_cr + '\n' .and '\r'; + +.string __string_filter; + +__string_filter + .loop __identifier_char; + +__identifier_char + 'a'-'z' .or 'A'-'Z' .or '_' .or '0'-'9'; + diff --git a/mesalib/src/mesa/shader/slang/library/slang_vertex_builtin.gc b/mesalib/src/mesa/shader/slang/library/slang_vertex_builtin.gc new file mode 100644 index 000000000..9ad5f3542 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_vertex_builtin.gc @@ -0,0 +1,190 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +// +// From Shader Spec, ver. 1.10, rev. 59 +// + +__fixed_output vec4 gl_Position; +__fixed_output float gl_PointSize; +__fixed_output vec4 gl_ClipVertex; + +attribute vec4 gl_Color; +attribute vec4 gl_SecondaryColor; +attribute vec3 gl_Normal; +attribute vec4 gl_Vertex; +attribute vec4 gl_MultiTexCoord0; +attribute vec4 gl_MultiTexCoord1; +attribute vec4 gl_MultiTexCoord2; +attribute vec4 gl_MultiTexCoord3; +attribute vec4 gl_MultiTexCoord4; +attribute vec4 gl_MultiTexCoord5; +attribute vec4 gl_MultiTexCoord6; +attribute vec4 gl_MultiTexCoord7; +attribute float gl_FogCoord; + +varying vec4 gl_FrontColor; +varying vec4 gl_BackColor; +varying vec4 gl_FrontSecondaryColor; +varying vec4 gl_BackSecondaryColor; +varying vec4 gl_TexCoord[gl_MaxTextureCoords]; +varying float gl_FogFragCoord; + +// +// Geometric Functions +// + +vec4 ftransform() +{ + __retVal = gl_ModelViewProjectionMatrix[0] * gl_Vertex.xxxx + + gl_ModelViewProjectionMatrix[1] * gl_Vertex.yyyy + + gl_ModelViewProjectionMatrix[2] * gl_Vertex.zzzz + + gl_ModelViewProjectionMatrix[3] * gl_Vertex.wwww; +} + + + +// +// 8.7 Texture Lookup Functions +// These are pretty much identical to the ones in slang_fragment_builtin.gc +// When used in a vertex program, the texture sample instructions should not +// be using a LOD term so it's effectively zero. Adding 'lod' to that does +// what we want. +// + +vec4 texture1DLod(const sampler1D sampler, const float coord, const float lod) +{ + vec4 coord4; + coord4.x = coord; + coord4.w = lod; + __asm vec4_tex_1d_bias __retVal, sampler, coord4; +} + +vec4 texture1DProjLod(const sampler1D sampler, const vec2 coord, const float lod) +{ + vec4 pcoord; + pcoord.x = coord.x / coord.y; + pcoord.w = lod; + __asm vec4_tex_1d_bias __retVal, sampler, pcoord; +} + +vec4 texture1DProjLod(const sampler1D sampler, const vec4 coord, const float lod) +{ + vec4 pcoord; + pcoord.x = coord.x / coord.z; + pcoord.w = lod; + __asm vec4_tex_1d_bias __retVal, sampler, pcoord; +} + + + +vec4 texture2DLod(const sampler2D sampler, const vec2 coord, const float lod) +{ + vec4 coord4; + coord4.xy = coord.xy; + coord4.w = lod; + __asm vec4_tex_2d_bias __retVal, sampler, coord4; +} + +vec4 texture2DProjLod(const sampler2D sampler, const vec3 coord, const float lod) +{ + vec4 pcoord; + pcoord.xy = coord.xy / coord.z; + pcoord.w = lod; + __asm vec4_tex_2d_bias __retVal, sampler, pcoord; +} + +vec4 texture2DProjLod(const sampler2D sampler, const vec4 coord, const float lod) +{ + vec4 pcoord; + pcoord.xy = coord.xy / coord.z; + pcoord.w = lod; + __asm vec4_tex_2d_bias __retVal, sampler, pcoord; +} + + +vec4 texture3DLod(const sampler3D sampler, const vec3 coord, const float lod) +{ + vec4 coord4; + coord4.xyz = coord.xyz; + coord4.w = lod; + __asm vec4_tex_3d_bias __retVal, sampler, coord4; +} + +vec4 texture3DProjLod(const sampler3D sampler, const vec4 coord, const float lod) +{ + // do projection here (there's no vec4_tex_3d_bias_proj instruction) + vec4 pcoord; + pcoord.xyz = coord.xyz / coord.w; + pcoord.w = lod; + __asm vec4_tex_3d_bias __retVal, sampler, pcoord; +} + + +vec4 textureCubeLod(const samplerCube sampler, const vec3 coord, const float lod) +{ + vec4 coord4; + coord4.xyz = coord; + coord4.w = lod; + __asm vec4_tex_cube __retVal, sampler, coord4; +} + + +vec4 shadow1DLod(const sampler1DShadow sampler, const vec3 coord, const float lod) +{ + vec4 coord4; + coord4.xyz = coord; + coord4.w = lod; + __asm vec4_tex_1d_bias_shadow __retVal, sampler, coord4; +} + +vec4 shadow1DProjLod(const sampler1DShadow sampler, const vec4 coord, + const float lod) +{ + vec4 pcoord; + pcoord.x = coord.x / coord.w; + pcoord.z = coord.z; + pcoord.w = lod; + __asm vec4_tex_1d_bias_shadow __retVal, sampler, pcoord; +} + + +vec4 shadow2DLod(const sampler2DShadow sampler, const vec3 coord, const float lod) +{ + vec4 coord4; + coord4.xyz = coord; + coord4.w = lod; + __asm vec4_tex_2d_bias_shadow __retVal, sampler, coord4; +} + +vec4 shadow2DProjLod(const sampler2DShadow sampler, const vec4 coord, + const float lod) +{ + vec4 pcoord; + pcoord.xy = coord.xy / coord.w; + pcoord.z = coord.z; + pcoord.w = lod; + __asm vec4_tex_2d_bias_shadow __retVal, sampler, pcoord; +} + diff --git a/mesalib/src/mesa/shader/slang/library/slang_vertex_builtin_gc.h b/mesalib/src/mesa/shader/slang/library/slang_vertex_builtin_gc.h new file mode 100644 index 000000000..e5a252b01 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/slang_vertex_builtin_gc.h @@ -0,0 +1,109 @@ + +/* DO NOT EDIT - THIS FILE IS AUTOMATICALLY GENERATED FROM THE FOLLOWING FILE: */ +/* slang_vertex_builtin.gc */ + +5,2,2,90,95,5,0,12,0,1,103,108,95,80,111,115,105,116,105,111,110,0,0,0,2,2,90,95,5,0,9,0,1,103,108, +95,80,111,105,110,116,83,105,122,101,0,0,0,2,2,90,95,5,0,12,0,1,103,108,95,67,108,105,112,86,101, +114,116,101,120,0,0,0,2,2,90,95,2,0,12,0,1,103,108,95,67,111,108,111,114,0,0,0,2,2,90,95,2,0,12,0, +1,103,108,95,83,101,99,111,110,100,97,114,121,67,111,108,111,114,0,0,0,2,2,90,95,2,0,11,0,1,103, +108,95,78,111,114,109,97,108,0,0,0,2,2,90,95,2,0,12,0,1,103,108,95,86,101,114,116,101,120,0,0,0,2, +2,90,95,2,0,12,0,1,103,108,95,77,117,108,116,105,84,101,120,67,111,111,114,100,48,0,0,0,2,2,90,95, 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000000000..f997edfd8 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/library/syn_to_c.c @@ -0,0 +1,72 @@ +#include <stdio.h> + +static int was_space = 0; +static int first_char = 1; + +static void put_char (int c) +{ + if (c == '\n') { + if (!first_char) { + fputs ("\\n\"\n\"", stdout); + first_char = 1; + } + } + else { + first_char = 0; + if (c == '\\') + fputs ("\\\\", stdout); + else if (c == '\"') + fputs ("\\\"", stdout); + else if (!was_space || !(c == ' ' || c == '\t')) + fputc (c, stdout); + was_space = (c == ' ' || c == '\t'); + } +} + +int main (int argc, char *argv[]) +{ + int c; + FILE *f; + + if (argc == 1) + return 1; + f = fopen (argv[1], "r"); + if (f == NULL) + return 1; + + fputs ("\n", stdout); + fputs ("/* DO NOT EDIT - THIS FILE IS AUTOMATICALLY GENERATED FROM THE .syn FILE */\n", stdout); + fputs ("\n", stdout); + fputs ("\"", stdout); + c = getc (f); + while (c != EOF) { + if (c == '/') { + int c2 = getc (f); + if (c2 == '*') { + was_space = 0; + c = getc (f); + for (;;) { + if (c == '*') { + c2 = getc (f); + if (c2 == '/') + break; + } + c = getc (f); + } + } + else { + put_char (c); + put_char (c2); + } + } + else { + put_char (c); + } + c = getc (f); + } + fputs ("\"\n", stdout); + + fclose (f); + return 0; +} + diff --git a/mesalib/src/mesa/shader/slang/slang_builtin.c b/mesalib/src/mesa/shader/slang/slang_builtin.c new file mode 100644 index 000000000..e5809509c --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_builtin.c @@ -0,0 +1,895 @@ +/* + * Mesa 3-D graphics library + * Version: 7.3 + * + * Copyright (C) 2005-2007 Brian Paul All Rights Reserved. + * Copyright (C) 2008 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_builtin.c + * Resolve built-in uniform vars. + * \author Brian Paul + */ + +#include "main/imports.h" +#include "main/mtypes.h" +#include "shader/program.h" +#include "shader/prog_instruction.h" +#include "shader/prog_parameter.h" +#include "shader/prog_statevars.h" +#include "shader/slang/slang_ir.h" +#include "shader/slang/slang_emit.h" +#include "shader/slang/slang_builtin.h" + + +/** special state token (see below) */ +#define STATE_ARRAY ((gl_state_index) 0xfffff) + + +/** + * Lookup GL state given a variable name, 0, 1 or 2 indexes and a field. + * Allocate room for the state in the given param list and return position + * in the list. + * Yes, this is kind of ugly, but it works. + */ +static GLint +lookup_statevar(const char *var, GLint index1, GLint index2, const char *field, + GLuint *swizzleOut, + struct gl_program_parameter_list *paramList) +{ + /* + * NOTE: The ARB_vertex_program extension specified that matrices get + * loaded in registers in row-major order. With GLSL, we want column- + * major order. So, we need to transpose all matrices here... + */ + static const struct { + const char *name; + gl_state_index matrix; + gl_state_index modifier; + } matrices[] = { + { "gl_ModelViewMatrix", STATE_MODELVIEW_MATRIX, STATE_MATRIX_TRANSPOSE }, + { "gl_ModelViewMatrixInverse", STATE_MODELVIEW_MATRIX, STATE_MATRIX_INVTRANS }, + { "gl_ModelViewMatrixTranspose", STATE_MODELVIEW_MATRIX, 0 }, + { "gl_ModelViewMatrixInverseTranspose", STATE_MODELVIEW_MATRIX, STATE_MATRIX_INVERSE }, + + { "gl_ProjectionMatrix", STATE_PROJECTION_MATRIX, STATE_MATRIX_TRANSPOSE }, + { "gl_ProjectionMatrixInverse", STATE_PROJECTION_MATRIX, STATE_MATRIX_INVTRANS }, + { "gl_ProjectionMatrixTranspose", STATE_PROJECTION_MATRIX, 0 }, + { "gl_ProjectionMatrixInverseTranspose", STATE_PROJECTION_MATRIX, STATE_MATRIX_INVERSE }, + + { "gl_ModelViewProjectionMatrix", STATE_MVP_MATRIX, STATE_MATRIX_TRANSPOSE }, + { "gl_ModelViewProjectionMatrixInverse", STATE_MVP_MATRIX, STATE_MATRIX_INVTRANS }, + { "gl_ModelViewProjectionMatrixTranspose", STATE_MVP_MATRIX, 0 }, + { "gl_ModelViewProjectionMatrixInverseTranspose", STATE_MVP_MATRIX, STATE_MATRIX_INVERSE }, + + { "gl_TextureMatrix", STATE_TEXTURE_MATRIX, STATE_MATRIX_TRANSPOSE }, + { "gl_TextureMatrixInverse", STATE_TEXTURE_MATRIX, STATE_MATRIX_INVTRANS }, + { "gl_TextureMatrixTranspose", STATE_TEXTURE_MATRIX, 0 }, + { "gl_TextureMatrixInverseTranspose", STATE_TEXTURE_MATRIX, STATE_MATRIX_INVERSE }, + + { "gl_NormalMatrix", STATE_MODELVIEW_MATRIX, STATE_MATRIX_INVERSE }, + + { NULL, 0, 0 } + }; + gl_state_index tokens[STATE_LENGTH]; + GLuint i; + GLboolean isMatrix = GL_FALSE; + + for (i = 0; i < STATE_LENGTH; i++) { + tokens[i] = 0; + } + *swizzleOut = SWIZZLE_NOOP; + + /* first, look if var is a pre-defined matrix */ + for (i = 0; matrices[i].name; i++) { + if (strcmp(var, matrices[i].name) == 0) { + tokens[0] = matrices[i].matrix; + /* tokens[1], [2] and [3] filled below */ + tokens[4] = matrices[i].modifier; + isMatrix = GL_TRUE; + break; + } + } + + if (isMatrix) { + if (tokens[0] == STATE_TEXTURE_MATRIX) { + /* texture_matrix[index1][index2] */ + tokens[1] = index1 >= 0 ? index1 : 0; /* which texture matrix */ + index1 = index2; /* move matrix row value to index1 */ + } + if (index1 < 0) { + /* index1 is unused: prevent extra addition at end of function */ + index1 = 0; + } + } + else if (strcmp(var, "gl_DepthRange") == 0) { + tokens[0] = STATE_DEPTH_RANGE; + if (strcmp(field, "near") == 0) { + *swizzleOut = SWIZZLE_XXXX; + } + else if (strcmp(field, "far") == 0) { + *swizzleOut = SWIZZLE_YYYY; + } + else if (strcmp(field, "diff") == 0) { + *swizzleOut = SWIZZLE_ZZZZ; + } + else { + return -1; + } + } + else if (strcmp(var, "gl_ClipPlane") == 0) { + if (index1 < 0) + return -1; + tokens[0] = STATE_CLIPPLANE; + tokens[1] = index1; + } + else if (strcmp(var, "gl_Point") == 0) { + if (strcmp(field, "size") == 0) { + tokens[0] = STATE_POINT_SIZE; + *swizzleOut = SWIZZLE_XXXX; + } + else if (strcmp(field, "sizeMin") == 0) { + tokens[0] = STATE_POINT_SIZE; + *swizzleOut = SWIZZLE_YYYY; + } + else if (strcmp(field, "sizeMax") == 0) { + tokens[0] = STATE_POINT_SIZE; + *swizzleOut = SWIZZLE_ZZZZ; + } + else if (strcmp(field, "fadeThresholdSize") == 0) { + tokens[0] = STATE_POINT_SIZE; + *swizzleOut = SWIZZLE_WWWW; + } + else if (strcmp(field, "distanceConstantAttenuation") == 0) { + tokens[0] = STATE_POINT_ATTENUATION; + *swizzleOut = SWIZZLE_XXXX; + } + else if (strcmp(field, "distanceLinearAttenuation") == 0) { + tokens[0] = STATE_POINT_ATTENUATION; + *swizzleOut = SWIZZLE_YYYY; + } + else if (strcmp(field, "distanceQuadraticAttenuation") == 0) { + tokens[0] = STATE_POINT_ATTENUATION; + *swizzleOut = SWIZZLE_ZZZZ; + } + else { + return -1; + } + } + else if (strcmp(var, "gl_FrontMaterial") == 0 || + strcmp(var, "gl_BackMaterial") == 0) { + tokens[0] = STATE_MATERIAL; + if (strcmp(var, "gl_FrontMaterial") == 0) + tokens[1] = 0; + else + tokens[1] = 1; + if (strcmp(field, "emission") == 0) { + tokens[2] = STATE_EMISSION; + } + else if (strcmp(field, "ambient") == 0) { + tokens[2] = STATE_AMBIENT; + } + else if (strcmp(field, "diffuse") == 0) { + tokens[2] = STATE_DIFFUSE; + } + else if (strcmp(field, "specular") == 0) { + tokens[2] = STATE_SPECULAR; + } + else if (strcmp(field, "shininess") == 0) { + tokens[2] = STATE_SHININESS; + *swizzleOut = SWIZZLE_XXXX; + } + else { + return -1; + } + } + else if (strcmp(var, "gl_LightSource") == 0) { + if (!field || index1 < 0) + return -1; + + tokens[0] = STATE_LIGHT; + tokens[1] = index1; + + if (strcmp(field, "ambient") == 0) { + tokens[2] = STATE_AMBIENT; + } + else if (strcmp(field, "diffuse") == 0) { + tokens[2] = STATE_DIFFUSE; + } + else if (strcmp(field, "specular") == 0) { + tokens[2] = STATE_SPECULAR; + } + else if (strcmp(field, "position") == 0) { + tokens[2] = STATE_POSITION; + } + else if (strcmp(field, "halfVector") == 0) { + tokens[2] = STATE_HALF_VECTOR; + } + else if (strcmp(field, "spotDirection") == 0) { + tokens[2] = STATE_SPOT_DIRECTION; + } + else if (strcmp(field, "spotCosCutoff") == 0) { + tokens[2] = STATE_SPOT_DIRECTION; + *swizzleOut = SWIZZLE_WWWW; + } + else if (strcmp(field, "spotCutoff") == 0) { + tokens[2] = STATE_SPOT_CUTOFF; + *swizzleOut = SWIZZLE_XXXX; + } + else if (strcmp(field, "spotExponent") == 0) { + tokens[2] = STATE_ATTENUATION; + *swizzleOut = SWIZZLE_WWWW; + } + else if (strcmp(field, "constantAttenuation") == 0) { + tokens[2] = STATE_ATTENUATION; + *swizzleOut = SWIZZLE_XXXX; + } + else if (strcmp(field, "linearAttenuation") == 0) { + tokens[2] = STATE_ATTENUATION; + *swizzleOut = SWIZZLE_YYYY; + } + else if (strcmp(field, "quadraticAttenuation") == 0) { + tokens[2] = STATE_ATTENUATION; + *swizzleOut = SWIZZLE_ZZZZ; + } + else { + return -1; + } + } + else if (strcmp(var, "gl_LightModel") == 0) { + if (strcmp(field, "ambient") == 0) { + tokens[0] = STATE_LIGHTMODEL_AMBIENT; + } + else { + return -1; + } + } + else if (strcmp(var, "gl_FrontLightModelProduct") == 0) { + if (strcmp(field, "sceneColor") == 0) { + tokens[0] = STATE_LIGHTMODEL_SCENECOLOR; + tokens[1] = 0; + } + else { + return -1; + } + } + else if (strcmp(var, "gl_BackLightModelProduct") == 0) { + if (strcmp(field, "sceneColor") == 0) { + tokens[0] = STATE_LIGHTMODEL_SCENECOLOR; + tokens[1] = 1; + } + else { + return -1; + } + } + else if (strcmp(var, "gl_FrontLightProduct") == 0 || + strcmp(var, "gl_BackLightProduct") == 0) { + if (index1 < 0 || !field) + return -1; + + tokens[0] = STATE_LIGHTPROD; + tokens[1] = index1; /* light number */ + if (strcmp(var, "gl_FrontLightProduct") == 0) { + tokens[2] = 0; /* front */ + } + else { + tokens[2] = 1; /* back */ + } + if (strcmp(field, "ambient") == 0) { + tokens[3] = STATE_AMBIENT; + } + else if (strcmp(field, "diffuse") == 0) { + tokens[3] = STATE_DIFFUSE; + } + else if (strcmp(field, "specular") == 0) { + tokens[3] = STATE_SPECULAR; + } + else { + return -1; + } + } + else if (strcmp(var, "gl_TextureEnvColor") == 0) { + if (index1 < 0) + return -1; + tokens[0] = STATE_TEXENV_COLOR; + tokens[1] = index1; + } + else if (strcmp(var, "gl_EyePlaneS") == 0) { + if (index1 < 0) + return -1; + tokens[0] = STATE_TEXGEN; + tokens[1] = index1; /* tex unit */ + tokens[2] = STATE_TEXGEN_EYE_S; + } + else if (strcmp(var, "gl_EyePlaneT") == 0) { + if (index1 < 0) + return -1; + tokens[0] = STATE_TEXGEN; + tokens[1] = index1; /* tex unit */ + tokens[2] = STATE_TEXGEN_EYE_T; + } + else if (strcmp(var, "gl_EyePlaneR") == 0) { + if (index1 < 0) + return -1; + tokens[0] = STATE_TEXGEN; + tokens[1] = index1; /* tex unit */ + tokens[2] = STATE_TEXGEN_EYE_R; + } + else if (strcmp(var, "gl_EyePlaneQ") == 0) { + if (index1 < 0) + return -1; + tokens[0] = STATE_TEXGEN; + tokens[1] = index1; /* tex unit */ + tokens[2] = STATE_TEXGEN_EYE_Q; + } + else if (strcmp(var, "gl_ObjectPlaneS") == 0) { + if (index1 < 0) + return -1; + tokens[0] = STATE_TEXGEN; + tokens[1] = index1; /* tex unit */ + tokens[2] = STATE_TEXGEN_OBJECT_S; + } + else if (strcmp(var, "gl_ObjectPlaneT") == 0) { + if (index1 < 0) + return -1; + tokens[0] = STATE_TEXGEN; + tokens[1] = index1; /* tex unit */ + tokens[2] = STATE_TEXGEN_OBJECT_T; + } + else if (strcmp(var, "gl_ObjectPlaneR") == 0) { + if (index1 < 0) + return -1; + tokens[0] = STATE_TEXGEN; + tokens[1] = index1; /* tex unit */ + tokens[2] = STATE_TEXGEN_OBJECT_R; + } + else if (strcmp(var, "gl_ObjectPlaneQ") == 0) { + if (index1 < 0) + return -1; + tokens[0] = STATE_TEXGEN; + tokens[1] = index1; /* tex unit */ + tokens[2] = STATE_TEXGEN_OBJECT_Q; + } + else if (strcmp(var, "gl_Fog") == 0) { + if (strcmp(field, "color") == 0) { + tokens[0] = STATE_FOG_COLOR; + } + else if (strcmp(field, "density") == 0) { + tokens[0] = STATE_FOG_PARAMS; + *swizzleOut = SWIZZLE_XXXX; + } + else if (strcmp(field, "start") == 0) { + tokens[0] = STATE_FOG_PARAMS; + *swizzleOut = SWIZZLE_YYYY; + } + else if (strcmp(field, "end") == 0) { + tokens[0] = STATE_FOG_PARAMS; + *swizzleOut = SWIZZLE_ZZZZ; + } + else if (strcmp(field, "scale") == 0) { + tokens[0] = STATE_FOG_PARAMS; + *swizzleOut = SWIZZLE_WWWW; + } + else { + return -1; + } + } + else { + return -1; + } + + if (isMatrix) { + /* load all four columns of matrix */ + GLint pos[4]; + GLuint j; + for (j = 0; j < 4; j++) { + tokens[2] = tokens[3] = j; /* jth row of matrix */ + pos[j] = _mesa_add_state_reference(paramList, tokens); + assert(pos[j] >= 0); + ASSERT(pos[j] >= 0); + } + return pos[0] + index1; + } + else { + /* allocate a single register */ + GLint pos = _mesa_add_state_reference(paramList, tokens); + ASSERT(pos >= 0); + return pos; + } +} + + + +/** + * Given a variable name and datatype, emit uniform/constant buffer + * entries which will store that state variable. + * For example, if name="gl_LightSource" we'll emit 64 state variable + * vectors/references and return position where that data starts. This will + * allow run-time array indexing into the light source array. + * + * Note that this is a recursive function. + * + * \return -1 if error, else index of start of data in the program parameter list + */ +static GLint +emit_statevars(const char *name, int array_len, + const slang_type_specifier *type, + gl_state_index tokens[STATE_LENGTH], + struct gl_program_parameter_list *paramList) +{ + if (type->type == SLANG_SPEC_ARRAY) { + GLint i, pos = -1; + assert(array_len > 0); + if (strcmp(name, "gl_ClipPlane") == 0) { + tokens[0] = STATE_CLIPPLANE; + } + else if (strcmp(name, "gl_LightSource") == 0) { + tokens[0] = STATE_LIGHT; + } + else if (strcmp(name, "gl_FrontLightProduct") == 0) { + tokens[0] = STATE_LIGHTPROD; + tokens[2] = 0; /* front */ + } + else if (strcmp(name, "gl_BackLightProduct") == 0) { + tokens[0] = STATE_LIGHTPROD; + tokens[2] = 1; /* back */ + } + else if (strcmp(name, "gl_TextureEnvColor") == 0) { + tokens[0] = STATE_TEXENV_COLOR; + } + else if (strcmp(name, "gl_EyePlaneS") == 0) { + tokens[0] = STATE_TEXGEN; + tokens[2] = STATE_TEXGEN_EYE_S; + } + else if (strcmp(name, "gl_EyePlaneT") == 0) { + tokens[0] = STATE_TEXGEN; + tokens[2] = STATE_TEXGEN_EYE_T; + } + else if (strcmp(name, "gl_EyePlaneR") == 0) { + tokens[0] = STATE_TEXGEN; + tokens[2] = STATE_TEXGEN_EYE_R; + } + else if (strcmp(name, "gl_EyePlaneQ") == 0) { + tokens[0] = STATE_TEXGEN; + tokens[2] = STATE_TEXGEN_EYE_Q; + } + else if (strcmp(name, "gl_ObjectPlaneS") == 0) { + tokens[0] = STATE_TEXGEN; + tokens[2] = STATE_TEXGEN_OBJECT_S; + } + else if (strcmp(name, "gl_ObjectPlaneT") == 0) { + tokens[0] = STATE_TEXGEN; + tokens[2] = STATE_TEXGEN_OBJECT_T; + } + else if (strcmp(name, "gl_ObjectPlaneR") == 0) { + tokens[0] = STATE_TEXGEN; + tokens[2] = STATE_TEXGEN_OBJECT_R; + } + else if (strcmp(name, "gl_ObjectPlaneQ") == 0) { + tokens[0] = STATE_TEXGEN; + tokens[2] = STATE_TEXGEN_OBJECT_Q; + } + else { + return -1; /* invalid array name */ + } + for (i = 0; i < array_len; i++) { + GLint p; + tokens[1] = i; + p = emit_statevars(NULL, 0, type->_array, tokens, paramList); + if (i == 0) + pos = p; + } + return pos; + } + else if (type->type == SLANG_SPEC_STRUCT) { + const slang_variable_scope *fields = type->_struct->fields; + GLuint i, pos = 0; + for (i = 0; i < fields->num_variables; i++) { + const slang_variable *var = fields->variables[i]; + GLint p = emit_statevars(var->a_name, 0, &var->type.specifier, + tokens, paramList); + if (i == 0) + pos = p; + } + return pos; + } + else { + GLint pos; + assert(type->type == SLANG_SPEC_VEC4 || + type->type == SLANG_SPEC_VEC3 || + type->type == SLANG_SPEC_VEC2 || + type->type == SLANG_SPEC_FLOAT || + type->type == SLANG_SPEC_IVEC4 || + type->type == SLANG_SPEC_IVEC3 || + type->type == SLANG_SPEC_IVEC2 || + type->type == SLANG_SPEC_INT); + if (name) { + GLint t; + + if (tokens[0] == STATE_LIGHT) + t = 2; + else if (tokens[0] == STATE_LIGHTPROD) + t = 3; + else + return -1; /* invalid array name */ + + if (strcmp(name, "ambient") == 0) { + tokens[t] = STATE_AMBIENT; + } + else if (strcmp(name, "diffuse") == 0) { + tokens[t] = STATE_DIFFUSE; + } + else if (strcmp(name, "specular") == 0) { + tokens[t] = STATE_SPECULAR; + } + else if (strcmp(name, "position") == 0) { + tokens[t] = STATE_POSITION; + } + else if (strcmp(name, "halfVector") == 0) { + tokens[t] = STATE_HALF_VECTOR; + } + else if (strcmp(name, "spotDirection") == 0) { + tokens[t] = STATE_SPOT_DIRECTION; /* xyz components */ + } + else if (strcmp(name, "spotCosCutoff") == 0) { + tokens[t] = STATE_SPOT_DIRECTION; /* w component */ + } + + else if (strcmp(name, "constantAttenuation") == 0) { + tokens[t] = STATE_ATTENUATION; /* x component */ + } + else if (strcmp(name, "linearAttenuation") == 0) { + tokens[t] = STATE_ATTENUATION; /* y component */ + } + else if (strcmp(name, "quadraticAttenuation") == 0) { + tokens[t] = STATE_ATTENUATION; /* z component */ + } + else if (strcmp(name, "spotExponent") == 0) { + tokens[t] = STATE_ATTENUATION; /* w = spot exponent */ + } + + else if (strcmp(name, "spotCutoff") == 0) { + tokens[t] = STATE_SPOT_CUTOFF; /* x component */ + } + + else { + return -1; /* invalid field name */ + } + } + + pos = _mesa_add_state_reference(paramList, tokens); + return pos; + } + + return 1; +} + + +/** + * Unroll the named built-in uniform variable into a sequence of state + * vars in the given parameter list. + */ +static GLint +alloc_state_var_array(const slang_variable *var, + struct gl_program_parameter_list *paramList) +{ + gl_state_index tokens[STATE_LENGTH]; + GLuint i; + GLint pos; + + /* Initialize the state tokens array. This is very important. + * When we call _mesa_add_state_reference() it'll searches the parameter + * list to see if the given statevar token sequence is already present. + * This is normally a good thing since it prevents redundant values in the + * constant buffer. + * + * But when we're building arrays of state this can be bad. For example, + * consider this fragment of GLSL code: + * foo = gl_LightSource[3].diffuse; + * ... + * bar = gl_LightSource[i].diffuse; + * + * When we unroll the gl_LightSource array (for "bar") we want to re-emit + * gl_LightSource[3].diffuse and not re-use the first instance (from "foo") + * since that would upset the array layout. We handle this situation by + * setting the last token in the state var token array to the special + * value STATE_ARRAY. + * This token will only be set for array state. We can hijack the last + * element in the array for this since it's never used for light, clipplane + * or texture env array state. + */ + for (i = 0; i < STATE_LENGTH; i++) + tokens[i] = 0; + tokens[STATE_LENGTH - 1] = STATE_ARRAY; + + pos = emit_statevars(var->a_name, var->array_len, &var->type.specifier, + tokens, paramList); + + return pos; +} + + + +/** + * Allocate storage for a pre-defined uniform (a GL state variable). + * As a memory-saving optimization, we try to only allocate storage for + * state vars that are actually used. + * + * Arrays such as gl_LightSource are handled specially. For an expression + * like "gl_LightSource[2].diffuse", we can allocate a single uniform/constant + * slot and return the index. In this case, we return direct=TRUE. + * + * Buf for something like "gl_LightSource[i].diffuse" we don't know the value + * of 'i' at compile time so we need to "unroll" the gl_LightSource array + * into a consecutive sequence of uniform/constant slots so it can be indexed + * at runtime. In this case, we return direct=FALSE. + * + * Currently, all pre-defined uniforms are in one of these forms: + * var + * var[i] + * var.field + * var[i].field + * var[i][j] + * + * \return -1 upon error, else position in paramList of the state variable/data + */ +GLint +_slang_alloc_statevar(slang_ir_node *n, + struct gl_program_parameter_list *paramList, + GLboolean *direct) +{ + slang_ir_node *n0 = n; + const char *field = NULL; + GLint index1 = -1, index2 = -1; + GLuint swizzle; + + *direct = GL_TRUE; + + if (n->Opcode == IR_FIELD) { + field = n->Field; + n = n->Children[0]; + } + + if (n->Opcode == IR_ELEMENT) { + if (n->Children[1]->Opcode == IR_FLOAT) { + index1 = (GLint) n->Children[1]->Value[0]; + } + else { + *direct = GL_FALSE; + } + n = n->Children[0]; + } + + if (n->Opcode == IR_ELEMENT) { + /* XXX can only handle constant indexes for now */ + if (n->Children[1]->Opcode == IR_FLOAT) { + /* two-dimensional array index: mat[i][j] */ + index2 = index1; + index1 = (GLint) n->Children[1]->Value[0]; + } + else { + *direct = GL_FALSE; + } + n = n->Children[0]; + } + + assert(n->Opcode == IR_VAR); + + if (*direct) { + const char *var = (const char *) n->Var->a_name; + GLint pos = + lookup_statevar(var, index1, index2, field, &swizzle, paramList); + if (pos >= 0) { + /* newly resolved storage for the statevar/constant/uniform */ + n0->Store->File = PROGRAM_STATE_VAR; + n0->Store->Index = pos; + n0->Store->Swizzle = swizzle; + n0->Store->Parent = NULL; + return pos; + } + } + + *direct = GL_FALSE; + return alloc_state_var_array(n->Var, paramList); +} + + + + +#define SWIZZLE_ZWWW MAKE_SWIZZLE4(SWIZZLE_Z, SWIZZLE_W, SWIZZLE_W, SWIZZLE_W) + + +/** Predefined shader inputs */ +struct input_info +{ + const char *Name; + GLuint Attrib; + GLenum Type; + GLuint Swizzle; +}; + +/** Predefined vertex shader inputs/attributes */ +static const struct input_info vertInputs[] = { + { "gl_Vertex", VERT_ATTRIB_POS, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_Normal", VERT_ATTRIB_NORMAL, GL_FLOAT_VEC3, SWIZZLE_NOOP }, + { "gl_Color", VERT_ATTRIB_COLOR0, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_SecondaryColor", VERT_ATTRIB_COLOR1, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_FogCoord", VERT_ATTRIB_FOG, GL_FLOAT, SWIZZLE_XXXX }, + { "gl_MultiTexCoord0", VERT_ATTRIB_TEX0, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_MultiTexCoord1", VERT_ATTRIB_TEX1, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_MultiTexCoord2", VERT_ATTRIB_TEX2, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_MultiTexCoord3", VERT_ATTRIB_TEX3, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_MultiTexCoord4", VERT_ATTRIB_TEX4, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_MultiTexCoord5", VERT_ATTRIB_TEX5, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_MultiTexCoord6", VERT_ATTRIB_TEX6, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_MultiTexCoord7", VERT_ATTRIB_TEX7, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { NULL, 0, GL_NONE, SWIZZLE_NOOP } +}; + +/** Predefined fragment shader inputs */ +static const struct input_info fragInputs[] = { + { "gl_FragCoord", FRAG_ATTRIB_WPOS, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_Color", FRAG_ATTRIB_COL0, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_SecondaryColor", FRAG_ATTRIB_COL1, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + { "gl_TexCoord", FRAG_ATTRIB_TEX0, GL_FLOAT_VEC4, SWIZZLE_NOOP }, + /* note: we're packing several quantities into the fogcoord vector */ + { "gl_FogFragCoord", FRAG_ATTRIB_FOGC, GL_FLOAT, SWIZZLE_XXXX }, + { "gl_FrontFacing", FRAG_ATTRIB_FACE, GL_FLOAT, SWIZZLE_XXXX }, + { "gl_PointCoord", FRAG_ATTRIB_PNTC, GL_FLOAT_VEC2, SWIZZLE_XYZW }, + { NULL, 0, GL_NONE, SWIZZLE_NOOP } +}; + + +/** + * Return the VERT_ATTRIB_* or FRAG_ATTRIB_* value that corresponds to + * a vertex or fragment program input variable. Return -1 if the input + * name is invalid. + * XXX return size too + */ +GLint +_slang_input_index(const char *name, GLenum target, GLuint *swizzleOut) +{ + const struct input_info *inputs; + GLuint i; + + switch (target) { + case GL_VERTEX_PROGRAM_ARB: + inputs = vertInputs; + break; + case GL_FRAGMENT_PROGRAM_ARB: + inputs = fragInputs; + break; + /* XXX geom program */ + default: + _mesa_problem(NULL, "bad target in _slang_input_index"); + return -1; + } + + ASSERT(MAX_TEXTURE_COORD_UNITS == 8); /* if this fails, fix vertInputs above */ + + for (i = 0; inputs[i].Name; i++) { + if (strcmp(inputs[i].Name, name) == 0) { + /* found */ + *swizzleOut = inputs[i].Swizzle; + return inputs[i].Attrib; + } + } + return -1; +} + + +/** + * Return name of the given vertex attribute (VERT_ATTRIB_x). + */ +const char * +_slang_vert_attrib_name(GLuint attrib) +{ + GLuint i; + assert(attrib < VERT_ATTRIB_GENERIC0); + for (i = 0; vertInputs[i].Name; i++) { + if (vertInputs[i].Attrib == attrib) + return vertInputs[i].Name; + } + return NULL; +} + + +/** + * Return type (GL_FLOAT, GL_FLOAT_VEC2, etc) of the given vertex + * attribute (VERT_ATTRIB_x). + */ +GLenum +_slang_vert_attrib_type(GLuint attrib) +{ + GLuint i; + assert(attrib < VERT_ATTRIB_GENERIC0); + for (i = 0; vertInputs[i].Name; i++) { + if (vertInputs[i].Attrib == attrib) + return vertInputs[i].Type; + } + return GL_NONE; +} + + + + + +/** Predefined shader output info */ +struct output_info +{ + const char *Name; + GLuint Attrib; +}; + +/** Predefined vertex shader outputs */ +static const struct output_info vertOutputs[] = { + { "gl_Position", VERT_RESULT_HPOS }, + { "gl_FrontColor", VERT_RESULT_COL0 }, + { "gl_BackColor", VERT_RESULT_BFC0 }, + { "gl_FrontSecondaryColor", VERT_RESULT_COL1 }, + { "gl_BackSecondaryColor", VERT_RESULT_BFC1 }, + { "gl_TexCoord", VERT_RESULT_TEX0 }, + { "gl_FogFragCoord", VERT_RESULT_FOGC }, + { "gl_PointSize", VERT_RESULT_PSIZ }, + { NULL, 0 } +}; + +/** Predefined fragment shader outputs */ +static const struct output_info fragOutputs[] = { + { "gl_FragColor", FRAG_RESULT_COLOR }, + { "gl_FragDepth", FRAG_RESULT_DEPTH }, + { "gl_FragData", FRAG_RESULT_DATA0 }, + { NULL, 0 } +}; + + +/** + * Return the VERT_RESULT_* or FRAG_RESULT_* value that corresponds to + * a vertex or fragment program output variable. Return -1 for an invalid + * output name. + */ +GLint +_slang_output_index(const char *name, GLenum target) +{ + const struct output_info *outputs; + GLuint i; + + switch (target) { + case GL_VERTEX_PROGRAM_ARB: + outputs = vertOutputs; + break; + case GL_FRAGMENT_PROGRAM_ARB: + outputs = fragOutputs; + break; + /* XXX geom program */ + default: + _mesa_problem(NULL, "bad target in _slang_output_index"); + return -1; + } + + for (i = 0; outputs[i].Name; i++) { + if (strcmp(outputs[i].Name, name) == 0) { + /* found */ + return outputs[i].Attrib; + } + } + return -1; +} diff --git a/mesalib/src/mesa/shader/slang/slang_builtin.h b/mesalib/src/mesa/shader/slang/slang_builtin.h new file mode 100644 index 000000000..f814d11ac --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_builtin.h @@ -0,0 +1,54 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.3 + * + * Copyright (C) 2005-2007 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +#ifndef SLANG_BUILTIN_H +#define SLANG_BUILTIN_H + +#include "shader/prog_parameter.h" +#include "slang_utility.h" +#include "slang_ir.h" + + +extern GLint +_slang_alloc_statevar(slang_ir_node *n, + struct gl_program_parameter_list *paramList, + GLboolean *direct); + + +extern GLint +_slang_input_index(const char *name, GLenum target, GLuint *swizzleOut); + +extern GLint +_slang_output_index(const char *name, GLenum target); + + +extern const char * +_slang_vert_attrib_name(GLuint attrib); + +extern GLenum +_slang_vert_attrib_type(GLuint attrib); + + +#endif /* SLANG_BUILTIN_H */ diff --git a/mesalib/src/mesa/shader/slang/slang_codegen.c b/mesalib/src/mesa/shader/slang/slang_codegen.c new file mode 100644 index 000000000..703af9f87 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_codegen.c @@ -0,0 +1,5319 @@ +/* + * Mesa 3-D graphics library + * + * Copyright (C) 2005-2007 Brian Paul All Rights Reserved. + * Copyright (C) 2008 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_codegen.c + * Generate IR tree from AST. + * \author Brian Paul + */ + + +/*** + *** NOTES: + *** The new_() functions return a new instance of a simple IR node. + *** The gen_() functions generate larger IR trees from the simple nodes. + ***/ + + + +#include "main/imports.h" +#include "main/macros.h" +#include "main/mtypes.h" +#include "shader/program.h" +#include "shader/prog_instruction.h" +#include "shader/prog_parameter.h" +#include "shader/prog_print.h" +#include "shader/prog_statevars.h" +#include "slang_typeinfo.h" +#include "slang_builtin.h" +#include "slang_codegen.h" +#include "slang_compile.h" +#include "slang_label.h" +#include "slang_mem.h" +#include "slang_simplify.h" +#include "slang_emit.h" +#include "slang_vartable.h" +#include "slang_ir.h" +#include "slang_print.h" + + +/** Max iterations to unroll */ +const GLuint MAX_FOR_LOOP_UNROLL_ITERATIONS = 32; + +/** Max for-loop body size (in slang operations) to unroll */ +const GLuint MAX_FOR_LOOP_UNROLL_BODY_SIZE = 50; + +/** Max for-loop body complexity to unroll. + * We'll compute complexity as the product of the number of iterations + * and the size of the body. So long-ish loops with very simple bodies + * can be unrolled, as well as short loops with larger bodies. + */ +const GLuint MAX_FOR_LOOP_UNROLL_COMPLEXITY = 256; + + + +static slang_ir_node * +_slang_gen_operation(slang_assemble_ctx * A, slang_operation *oper); + +static void +slang_substitute(slang_assemble_ctx *A, slang_operation *oper, + GLuint substCount, slang_variable **substOld, + slang_operation **substNew, GLboolean isLHS); + + +/** + * Retrieves type information about an operation. + * Returns GL_TRUE on success. + * Returns GL_FALSE otherwise. + */ +static GLboolean +typeof_operation(const struct slang_assemble_ctx_ *A, + slang_operation *op, + slang_typeinfo *ti) +{ + return _slang_typeof_operation(op, &A->space, ti, A->atoms, A->log); +} + + +static GLboolean +is_sampler_type(const slang_fully_specified_type *t) +{ + switch (t->specifier.type) { + case SLANG_SPEC_SAMPLER1D: + case SLANG_SPEC_SAMPLER2D: + case SLANG_SPEC_SAMPLER3D: + case SLANG_SPEC_SAMPLERCUBE: + case SLANG_SPEC_SAMPLER1DSHADOW: + case SLANG_SPEC_SAMPLER2DSHADOW: + case SLANG_SPEC_SAMPLER2DRECT: + case SLANG_SPEC_SAMPLER2DRECTSHADOW: + return GL_TRUE; + default: + return GL_FALSE; + } +} + + +/** + * Return the offset (in floats or ints) of the named field within + * the given struct. Return -1 if field not found. + * If field is NULL, return the size of the struct instead. + */ +static GLint +_slang_field_offset(const slang_type_specifier *spec, slang_atom field) +{ + GLint offset = 0; + GLuint i; + for (i = 0; i < spec->_struct->fields->num_variables; i++) { + const slang_variable *v = spec->_struct->fields->variables[i]; + const GLuint sz = _slang_sizeof_type_specifier(&v->type.specifier); + if (sz > 1) { + /* types larger than 1 float are register (4-float) aligned */ + offset = (offset + 3) & ~3; + } + if (field && v->a_name == field) { + return offset; + } + offset += sz; + } + if (field) + return -1; /* field not found */ + else + return offset; /* struct size */ +} + + +/** + * Return the size (in floats) of the given type specifier. + * If the size is greater than 4, the size should be a multiple of 4 + * so that the correct number of 4-float registers are allocated. + * For example, a mat3x2 is size 12 because we want to store the + * 3 columns in 3 float[4] registers. + */ +GLuint +_slang_sizeof_type_specifier(const slang_type_specifier *spec) +{ + GLuint sz; + switch (spec->type) { + case SLANG_SPEC_VOID: + sz = 0; + break; + case SLANG_SPEC_BOOL: + sz = 1; + break; + case SLANG_SPEC_BVEC2: + sz = 2; + break; + case SLANG_SPEC_BVEC3: + sz = 3; + break; + case SLANG_SPEC_BVEC4: + sz = 4; + break; + case SLANG_SPEC_INT: + sz = 1; + break; + case SLANG_SPEC_IVEC2: + sz = 2; + break; + case SLANG_SPEC_IVEC3: + sz = 3; + break; + case SLANG_SPEC_IVEC4: + sz = 4; + break; + case SLANG_SPEC_FLOAT: + sz = 1; + break; + case SLANG_SPEC_VEC2: + sz = 2; + break; + case SLANG_SPEC_VEC3: + sz = 3; + break; + case SLANG_SPEC_VEC4: + sz = 4; + break; + case SLANG_SPEC_MAT2: + sz = 2 * 4; /* 2 columns (regs) */ + break; + case SLANG_SPEC_MAT3: + sz = 3 * 4; + break; + case SLANG_SPEC_MAT4: + sz = 4 * 4; + break; + case SLANG_SPEC_MAT23: + sz = 2 * 4; /* 2 columns (regs) */ + break; + case SLANG_SPEC_MAT32: + sz = 3 * 4; /* 3 columns (regs) */ + break; + case SLANG_SPEC_MAT24: + sz = 2 * 4; + break; + case SLANG_SPEC_MAT42: + sz = 4 * 4; /* 4 columns (regs) */ + break; + case SLANG_SPEC_MAT34: + sz = 3 * 4; + break; + case SLANG_SPEC_MAT43: + sz = 4 * 4; /* 4 columns (regs) */ + break; + case SLANG_SPEC_SAMPLER1D: + case SLANG_SPEC_SAMPLER2D: + case SLANG_SPEC_SAMPLER3D: + case SLANG_SPEC_SAMPLERCUBE: + case SLANG_SPEC_SAMPLER1DSHADOW: + case SLANG_SPEC_SAMPLER2DSHADOW: + case SLANG_SPEC_SAMPLER2DRECT: + case SLANG_SPEC_SAMPLER2DRECTSHADOW: + sz = 1; /* a sampler is basically just an integer index */ + break; + case SLANG_SPEC_STRUCT: + sz = _slang_field_offset(spec, 0); /* special use */ + if (sz == 1) { + /* 1-float structs are actually troublesome to deal with since they + * might get placed at R.x, R.y, R.z or R.z. Return size=2 to + * ensure the object is placed at R.x + */ + sz = 2; + } + else if (sz > 4) { + sz = (sz + 3) & ~0x3; /* round up to multiple of four */ + } + break; + case SLANG_SPEC_ARRAY: + sz = _slang_sizeof_type_specifier(spec->_array); + break; + default: + _mesa_problem(NULL, "Unexpected type in _slang_sizeof_type_specifier()"); + sz = 0; + } + + if (sz > 4) { + /* if size is > 4, it should be a multiple of four */ + assert((sz & 0x3) == 0); + } + return sz; +} + + +/** + * Query variable/array length (number of elements). + * This is slightly non-trivial because there are two ways to express + * arrays: "float x[3]" vs. "float[3] x". + * \return the length of the array for the given variable, or 0 if not an array + */ +static GLint +_slang_array_length(const slang_variable *var) +{ + if (var->type.array_len > 0) { + /* Ex: float[4] x; */ + return var->type.array_len; + } + if (var->array_len > 0) { + /* Ex: float x[4]; */ + return var->array_len; + } + return 0; +} + + +/** + * Compute total size of array give size of element, number of elements. + * \return size in floats + */ +static GLint +_slang_array_size(GLint elemSize, GLint arrayLen) +{ + GLint total; + assert(elemSize > 0); + if (arrayLen > 1) { + /* round up base type to multiple of 4 */ + total = ((elemSize + 3) & ~0x3) * MAX2(arrayLen, 1); + } + else { + total = elemSize; + } + return total; +} + + +/** + * Return the TEXTURE_*_INDEX value that corresponds to a sampler type, + * or -1 if the type is not a sampler. + */ +static GLint +sampler_to_texture_index(const slang_type_specifier_type type) +{ + switch (type) { + case SLANG_SPEC_SAMPLER1D: + return TEXTURE_1D_INDEX; + case SLANG_SPEC_SAMPLER2D: + return TEXTURE_2D_INDEX; + case SLANG_SPEC_SAMPLER3D: + return TEXTURE_3D_INDEX; + case SLANG_SPEC_SAMPLERCUBE: + return TEXTURE_CUBE_INDEX; + case SLANG_SPEC_SAMPLER1DSHADOW: + return TEXTURE_1D_INDEX; /* XXX fix */ + case SLANG_SPEC_SAMPLER2DSHADOW: + return TEXTURE_2D_INDEX; /* XXX fix */ + case SLANG_SPEC_SAMPLER2DRECT: + return TEXTURE_RECT_INDEX; + case SLANG_SPEC_SAMPLER2DRECTSHADOW: + return TEXTURE_RECT_INDEX; /* XXX fix */ + default: + return -1; + } +} + + +/** helper to build a SLANG_OPER_IDENTIFIER node */ +static void +slang_operation_identifier(slang_operation *oper, + slang_assemble_ctx *A, + const char *name) +{ + oper->type = SLANG_OPER_IDENTIFIER; + oper->a_id = slang_atom_pool_atom(A->atoms, name); +} + + +/** + * Called when we begin code/IR generation for a new while/do/for loop. + */ +static void +push_loop(slang_assemble_ctx *A, slang_operation *loopOper, slang_ir_node *loopIR) +{ + A->LoopOperStack[A->LoopDepth] = loopOper; + A->LoopIRStack[A->LoopDepth] = loopIR; + A->LoopDepth++; +} + + +/** + * Called when we end code/IR generation for a new while/do/for loop. + */ +static void +pop_loop(slang_assemble_ctx *A) +{ + assert(A->LoopDepth > 0); + A->LoopDepth--; +} + + +/** + * Return pointer to slang_operation for the loop we're currently inside, + * or NULL if not in a loop. + */ +static const slang_operation * +current_loop_oper(const slang_assemble_ctx *A) +{ + if (A->LoopDepth > 0) + return A->LoopOperStack[A->LoopDepth - 1]; + else + return NULL; +} + + +/** + * Return pointer to slang_ir_node for the loop we're currently inside, + * or NULL if not in a loop. + */ +static slang_ir_node * +current_loop_ir(const slang_assemble_ctx *A) +{ + if (A->LoopDepth > 0) + return A->LoopIRStack[A->LoopDepth - 1]; + else + return NULL; +} + + +/**********************************************************************/ + + +/** + * Map "_asm foo" to IR_FOO, etc. + */ +typedef struct +{ + const char *Name; + slang_ir_opcode Opcode; + GLuint HaveRetValue, NumParams; +} slang_asm_info; + + +static slang_asm_info AsmInfo[] = { + /* vec4 binary op */ + { "vec4_add", IR_ADD, 1, 2 }, + { "vec4_subtract", IR_SUB, 1, 2 }, + { "vec4_multiply", IR_MUL, 1, 2 }, + { "vec4_dot", IR_DOT4, 1, 2 }, + { "vec3_dot", IR_DOT3, 1, 2 }, + { "vec2_dot", IR_DOT2, 1, 2 }, + { "vec3_nrm", IR_NRM3, 1, 1 }, + { "vec4_nrm", IR_NRM4, 1, 1 }, + { "vec3_cross", IR_CROSS, 1, 2 }, + { "vec4_lrp", IR_LRP, 1, 3 }, + { "vec4_min", IR_MIN, 1, 2 }, + { "vec4_max", IR_MAX, 1, 2 }, + { "vec4_clamp", IR_CLAMP, 1, 3 }, + { "vec4_seq", IR_SEQUAL, 1, 2 }, + { "vec4_sne", IR_SNEQUAL, 1, 2 }, + { "vec4_sge", IR_SGE, 1, 2 }, + { "vec4_sgt", IR_SGT, 1, 2 }, + { "vec4_sle", IR_SLE, 1, 2 }, + { "vec4_slt", IR_SLT, 1, 2 }, + /* vec4 unary */ + { "vec4_move", IR_MOVE, 1, 1 }, + { "vec4_floor", IR_FLOOR, 1, 1 }, + { "vec4_frac", IR_FRAC, 1, 1 }, + { "vec4_abs", IR_ABS, 1, 1 }, + { "vec4_negate", IR_NEG, 1, 1 }, + { "vec4_ddx", IR_DDX, 1, 1 }, + { "vec4_ddy", IR_DDY, 1, 1 }, + /* float binary op */ + { "float_power", IR_POW, 1, 2 }, + /* texture / sampler */ + { "vec4_tex_1d", IR_TEX, 1, 2 }, + { "vec4_tex_1d_bias", IR_TEXB, 1, 2 }, /* 1d w/ bias */ + { "vec4_tex_1d_proj", IR_TEXP, 1, 2 }, /* 1d w/ projection */ + { "vec4_tex_2d", IR_TEX, 1, 2 }, + { "vec4_tex_2d_bias", IR_TEXB, 1, 2 }, /* 2d w/ bias */ + { "vec4_tex_2d_proj", IR_TEXP, 1, 2 }, /* 2d w/ projection */ + { "vec4_tex_3d", IR_TEX, 1, 2 }, + { "vec4_tex_3d_bias", IR_TEXB, 1, 2 }, /* 3d w/ bias */ + { "vec4_tex_3d_proj", IR_TEXP, 1, 2 }, /* 3d w/ projection */ + { "vec4_tex_cube", IR_TEX, 1, 2 }, /* cubemap */ + { "vec4_tex_rect", IR_TEX, 1, 2 }, /* rectangle */ + { "vec4_tex_rect_bias", IR_TEX, 1, 2 }, /* rectangle w/ projection */ + + /* texture / sampler but with shadow comparison */ + { "vec4_tex_1d_shadow", IR_TEX_SH, 1, 2 }, + { "vec4_tex_1d_bias_shadow", IR_TEXB_SH, 1, 2 }, + { "vec4_tex_1d_proj_shadow", IR_TEXP_SH, 1, 2 }, + { "vec4_tex_2d_shadow", IR_TEX_SH, 1, 2 }, + { "vec4_tex_2d_bias_shadow", IR_TEXB_SH, 1, 2 }, + { "vec4_tex_2d_proj_shadow", IR_TEXP_SH, 1, 2 }, + { "vec4_tex_rect_shadow", IR_TEX_SH, 1, 2 }, + { "vec4_tex_rect_proj_shadow", IR_TEXP_SH, 1, 2 }, + + /* unary op */ + { "ivec4_to_vec4", IR_I_TO_F, 1, 1 }, /* int[4] to float[4] */ + { "vec4_to_ivec4", IR_F_TO_I, 1, 1 }, /* float[4] to int[4] */ + { "float_exp", IR_EXP, 1, 1 }, + { "float_exp2", IR_EXP2, 1, 1 }, + { "float_log2", IR_LOG2, 1, 1 }, + { "float_rsq", IR_RSQ, 1, 1 }, + { "float_rcp", IR_RCP, 1, 1 }, + { "float_sine", IR_SIN, 1, 1 }, + { "float_cosine", IR_COS, 1, 1 }, + { "float_noise1", IR_NOISE1, 1, 1}, + { "float_noise2", IR_NOISE2, 1, 1}, + { "float_noise3", IR_NOISE3, 1, 1}, + { "float_noise4", IR_NOISE4, 1, 1}, + + { NULL, IR_NOP, 0, 0 } +}; + + +static slang_ir_node * +new_node3(slang_ir_opcode op, + slang_ir_node *c0, slang_ir_node *c1, slang_ir_node *c2) +{ + slang_ir_node *n = (slang_ir_node *) _slang_alloc(sizeof(slang_ir_node)); + if (n) { + n->Opcode = op; + n->Children[0] = c0; + n->Children[1] = c1; + n->Children[2] = c2; + n->InstLocation = -1; + } + return n; +} + +static slang_ir_node * +new_node2(slang_ir_opcode op, slang_ir_node *c0, slang_ir_node *c1) +{ + return new_node3(op, c0, c1, NULL); +} + +static slang_ir_node * +new_node1(slang_ir_opcode op, slang_ir_node *c0) +{ + return new_node3(op, c0, NULL, NULL); +} + +static slang_ir_node * +new_node0(slang_ir_opcode op) +{ + return new_node3(op, NULL, NULL, NULL); +} + + +/** + * Create sequence of two nodes. + */ +static slang_ir_node * +new_seq(slang_ir_node *left, slang_ir_node *right) +{ + if (!left) + return right; + if (!right) + return left; + return new_node2(IR_SEQ, left, right); +} + +static slang_ir_node * +new_label(slang_label *label) +{ + slang_ir_node *n = new_node0(IR_LABEL); + assert(label); + if (n) + n->Label = label; + return n; +} + +static slang_ir_node * +new_float_literal(const float v[4], GLuint size) +{ + slang_ir_node *n = new_node0(IR_FLOAT); + assert(size <= 4); + COPY_4V(n->Value, v); + /* allocate a storage object, but compute actual location (Index) later */ + n->Store = _slang_new_ir_storage(PROGRAM_CONSTANT, -1, size); + return n; +} + + +static slang_ir_node * +new_not(slang_ir_node *n) +{ + return new_node1(IR_NOT, n); +} + + +/** + * Non-inlined function call. + */ +static slang_ir_node * +new_function_call(slang_ir_node *code, slang_label *name) +{ + slang_ir_node *n = new_node1(IR_CALL, code); + assert(name); + if (n) + n->Label = name; + return n; +} + + +/** + * Unconditional jump. + */ +static slang_ir_node * +new_return(slang_label *dest) +{ + slang_ir_node *n = new_node0(IR_RETURN); + assert(dest); + if (n) + n->Label = dest; + return n; +} + + +static slang_ir_node * +new_loop(slang_ir_node *body) +{ + return new_node1(IR_LOOP, body); +} + + +static slang_ir_node * +new_break(slang_ir_node *loopNode) +{ + slang_ir_node *n = new_node0(IR_BREAK); + assert(loopNode); + assert(loopNode->Opcode == IR_LOOP); + if (n) { + /* insert this node at head of linked list of cont/break instructions */ + n->List = loopNode->List; + loopNode->List = n; + } + return n; +} + + +/** + * Make new IR_BREAK_IF_TRUE. + */ +static slang_ir_node * +new_break_if_true(slang_assemble_ctx *A, slang_ir_node *cond) +{ + slang_ir_node *loopNode = current_loop_ir(A); + slang_ir_node *n; + assert(loopNode); + assert(loopNode->Opcode == IR_LOOP); + n = new_node1(IR_BREAK_IF_TRUE, cond); + if (n) { + /* insert this node at head of linked list of cont/break instructions */ + n->List = loopNode->List; + loopNode->List = n; + } + return n; +} + + +/** + * Make new IR_CONT_IF_TRUE node. + */ +static slang_ir_node * +new_cont_if_true(slang_assemble_ctx *A, slang_ir_node *cond) +{ + slang_ir_node *loopNode = current_loop_ir(A); + slang_ir_node *n; + assert(loopNode); + assert(loopNode->Opcode == IR_LOOP); + n = new_node1(IR_CONT_IF_TRUE, cond); + if (n) { + n->Parent = loopNode; /* pointer to containing loop */ + /* insert this node at head of linked list of cont/break instructions */ + n->List = loopNode->List; + loopNode->List = n; + } + return n; +} + + +static slang_ir_node * +new_cond(slang_ir_node *n) +{ + slang_ir_node *c = new_node1(IR_COND, n); + return c; +} + + +static slang_ir_node * +new_if(slang_ir_node *cond, slang_ir_node *ifPart, slang_ir_node *elsePart) +{ + return new_node3(IR_IF, cond, ifPart, elsePart); +} + + +/** + * New IR_VAR node - a reference to a previously declared variable. + */ +static slang_ir_node * +new_var(slang_assemble_ctx *A, slang_variable *var) +{ + slang_ir_node *n = new_node0(IR_VAR); + if (n) { + ASSERT(var); + ASSERT(var->store); + ASSERT(!n->Store); + ASSERT(!n->Var); + + /* Set IR node's Var and Store pointers */ + n->Var = var; + n->Store = var->store; + } + return n; +} + + +/** + * Check if the given function is really just a wrapper for a + * basic assembly instruction. + */ +static GLboolean +slang_is_asm_function(const slang_function *fun) +{ + if (fun->body->type == SLANG_OPER_BLOCK_NO_NEW_SCOPE && + fun->body->num_children == 1 && + fun->body->children[0].type == SLANG_OPER_ASM) { + return GL_TRUE; + } + return GL_FALSE; +} + + +static GLboolean +_slang_is_noop(const slang_operation *oper) +{ + if (!oper || + oper->type == SLANG_OPER_VOID || + (oper->num_children == 1 && oper->children[0].type == SLANG_OPER_VOID)) + return GL_TRUE; + else + return GL_FALSE; +} + + +/** + * Recursively search tree for a node of the given type. + */ +#if 0 +static slang_operation * +_slang_find_node_type(slang_operation *oper, slang_operation_type type) +{ + GLuint i; + if (oper->type == type) + return oper; + for (i = 0; i < oper->num_children; i++) { + slang_operation *p = _slang_find_node_type(&oper->children[i], type); + if (p) + return p; + } + return NULL; +} +#endif + + +/** + * Count the number of operations of the given time rooted at 'oper'. + */ +static GLuint +_slang_count_node_type(const slang_operation *oper, slang_operation_type type) +{ + GLuint i, count = 0; + if (oper->type == type) { + return 1; + } + for (i = 0; i < oper->num_children; i++) { + count += _slang_count_node_type(&oper->children[i], type); + } + return count; +} + + +/** + * Check if the 'return' statement found under 'oper' is a "tail return" + * that can be no-op'd. For example: + * + * void func(void) + * { + * .. do something .. + * return; // this is a no-op + * } + * + * This is used when determining if a function can be inlined. If the + * 'return' is not the last statement, we can't inline the function since + * we still need the semantic behaviour of the 'return' but we don't want + * to accidentally return from the _calling_ function. We'd need to use an + * unconditional branch, but we don't have such a GPU instruction (not + * always, at least). + */ +static GLboolean +_slang_is_tail_return(const slang_operation *oper) +{ + GLuint k = oper->num_children; + + while (k > 0) { + const slang_operation *last = &oper->children[k - 1]; + if (last->type == SLANG_OPER_RETURN) + return GL_TRUE; + else if (last->type == SLANG_OPER_IDENTIFIER || + last->type == SLANG_OPER_LABEL) + k--; /* try prev child */ + else if (last->type == SLANG_OPER_BLOCK_NO_NEW_SCOPE || + last->type == SLANG_OPER_BLOCK_NEW_SCOPE) + /* try sub-children */ + return _slang_is_tail_return(last); + else + break; + } + + return GL_FALSE; +} + + +/** + * Generate a variable declaration opeartion. + * I.e.: generate AST code for "bool flag = false;" + */ +static void +slang_generate_declaration(slang_assemble_ctx *A, + slang_variable_scope *scope, + slang_operation *decl, + slang_type_specifier_type type, + const char *name, + GLint initValue) +{ + slang_variable *var; + + assert(type == SLANG_SPEC_BOOL || + type == SLANG_SPEC_INT); + + decl->type = SLANG_OPER_VARIABLE_DECL; + + var = slang_variable_scope_grow(scope); + + slang_fully_specified_type_construct(&var->type); + + var->type.specifier.type = type; + var->a_name = slang_atom_pool_atom(A->atoms, name); + decl->a_id = var->a_name; + var->initializer = slang_operation_new(1); + slang_operation_literal_bool(var->initializer, initValue); +} + + +static void +slang_resolve_variable(slang_operation *oper) +{ + if (oper->type == SLANG_OPER_IDENTIFIER && !oper->var) { + oper->var = _slang_variable_locate(oper->locals, oper->a_id, GL_TRUE); + } +} + + +/** + * Rewrite AST code for "return expression;". + * + * We return values from functions by assinging the returned value to + * the hidden __retVal variable which is an extra 'out' parameter we add + * to the function signature. + * This code basically converts "return expr;" into "__retVal = expr; return;" + * + * \return the new AST code. + */ +static slang_operation * +gen_return_with_expression(slang_assemble_ctx *A, slang_operation *oper) +{ + slang_operation *blockOper, *assignOper; + + assert(oper->type == SLANG_OPER_RETURN); + + if (A->CurFunction->header.type.specifier.type == SLANG_SPEC_VOID) { + slang_info_log_error(A->log, "illegal return expression"); + return NULL; + } + + blockOper = slang_operation_new(1); + blockOper->type = SLANG_OPER_BLOCK_NO_NEW_SCOPE; + blockOper->locals->outer_scope = oper->locals->outer_scope; + slang_operation_add_children(blockOper, 2); + + if (A->UseReturnFlag) { + /* Emit: + * { + * if (__notRetFlag) + * __retVal = expr; + * __notRetFlag = 0; + * } + */ + { + slang_operation *ifOper = slang_oper_child(blockOper, 0); + ifOper->type = SLANG_OPER_IF; + slang_operation_add_children(ifOper, 3); + { + slang_operation *cond = slang_oper_child(ifOper, 0); + cond->type = SLANG_OPER_IDENTIFIER; + cond->a_id = slang_atom_pool_atom(A->atoms, "__notRetFlag"); + } + { + slang_operation *elseOper = slang_oper_child(ifOper, 2); + elseOper->type = SLANG_OPER_VOID; + } + assignOper = slang_oper_child(ifOper, 1); + } + { + slang_operation *setOper = slang_oper_child(blockOper, 1); + setOper->type = SLANG_OPER_ASSIGN; + slang_operation_add_children(setOper, 2); + { + slang_operation *lhs = slang_oper_child(setOper, 0); + lhs->type = SLANG_OPER_IDENTIFIER; + lhs->a_id = slang_atom_pool_atom(A->atoms, "__notRetFlag"); + } + { + slang_operation *rhs = slang_oper_child(setOper, 1); + slang_operation_literal_bool(rhs, GL_FALSE); + } + } + } + else { + /* Emit: + * { + * __retVal = expr; + * return_inlined; + * } + */ + assignOper = slang_oper_child(blockOper, 0); + { + slang_operation *returnOper = slang_oper_child(blockOper, 1); + returnOper->type = SLANG_OPER_RETURN_INLINED; + assert(returnOper->num_children == 0); + } + } + + /* __retVal = expression; */ + assignOper->type = SLANG_OPER_ASSIGN; + slang_operation_add_children(assignOper, 2); + { + slang_operation *lhs = slang_oper_child(assignOper, 0); + lhs->type = SLANG_OPER_IDENTIFIER; + lhs->a_id = slang_atom_pool_atom(A->atoms, "__retVal"); + } + { + slang_operation *rhs = slang_oper_child(assignOper, 1); + slang_operation_copy(rhs, &oper->children[0]); + } + + ///blockOper->locals->outer_scope = oper->locals->outer_scope; + + /*slang_print_tree(blockOper, 0);*/ + + return blockOper; +} + + +/** + * Rewrite AST code for "return;" (no expression). + */ +static slang_operation * +gen_return_without_expression(slang_assemble_ctx *A, slang_operation *oper) +{ + slang_operation *newRet; + + assert(oper->type == SLANG_OPER_RETURN); + + if (A->CurFunction->header.type.specifier.type != SLANG_SPEC_VOID) { + slang_info_log_error(A->log, "return statement requires an expression"); + return NULL; + } + + if (A->UseReturnFlag) { + /* Emit: + * __notRetFlag = 0; + */ + { + newRet = slang_operation_new(1); + newRet->locals->outer_scope = oper->locals->outer_scope; + newRet->type = SLANG_OPER_ASSIGN; + slang_operation_add_children(newRet, 2); + { + slang_operation *lhs = slang_oper_child(newRet, 0); + lhs->type = SLANG_OPER_IDENTIFIER; + lhs->a_id = slang_atom_pool_atom(A->atoms, "__notRetFlag"); + } + { + slang_operation *rhs = slang_oper_child(newRet, 1); + slang_operation_literal_bool(rhs, GL_FALSE); + } + } + } + else { + /* Emit: + * return_inlined; + */ + newRet = slang_operation_new(1); + newRet->locals->outer_scope = oper->locals->outer_scope; + newRet->type = SLANG_OPER_RETURN_INLINED; + } + + /*slang_print_tree(newRet, 0);*/ + + return newRet; +} + + + + +/** + * Replace particular variables (SLANG_OPER_IDENTIFIER) with new expressions. + */ +static void +slang_substitute(slang_assemble_ctx *A, slang_operation *oper, + GLuint substCount, slang_variable **substOld, + slang_operation **substNew, GLboolean isLHS) +{ + switch (oper->type) { + case SLANG_OPER_VARIABLE_DECL: + { + slang_variable *v = _slang_variable_locate(oper->locals, + oper->a_id, GL_TRUE); + assert(v); + if (v->initializer && oper->num_children == 0) { + /* set child of oper to copy of initializer */ + oper->num_children = 1; + oper->children = slang_operation_new(1); + slang_operation_copy(&oper->children[0], v->initializer); + } + if (oper->num_children == 1) { + /* the initializer */ + slang_substitute(A, &oper->children[0], substCount, + substOld, substNew, GL_FALSE); + } + } + break; + case SLANG_OPER_IDENTIFIER: + assert(oper->num_children == 0); + if (1/**!isLHS XXX FIX */) { + slang_atom id = oper->a_id; + slang_variable *v; + GLuint i; + v = _slang_variable_locate(oper->locals, id, GL_TRUE); + if (!v) { + if (_mesa_strcmp((char *) oper->a_id, "__notRetFlag")) + _mesa_problem(NULL, "var %s not found!\n", (char *) oper->a_id); + return; + } + + /* look for a substitution */ + for (i = 0; i < substCount; i++) { + if (v == substOld[i]) { + /* OK, replace this SLANG_OPER_IDENTIFIER with a new expr */ +#if 0 /* DEBUG only */ + if (substNew[i]->type == SLANG_OPER_IDENTIFIER) { + assert(substNew[i]->var); + assert(substNew[i]->var->a_name); + printf("Substitute %s with %s in id node %p\n", + (char*)v->a_name, (char*) substNew[i]->var->a_name, + (void*) oper); + } + else { + printf("Substitute %s with %f in id node %p\n", + (char*)v->a_name, substNew[i]->literal[0], + (void*) oper); + } +#endif + slang_operation_copy(oper, substNew[i]); + break; + } + } + } + break; + + case SLANG_OPER_RETURN: + { + slang_operation *newReturn; + /* generate new 'return' code' */ + if (slang_oper_child(oper, 0)->type == SLANG_OPER_VOID) + newReturn = gen_return_without_expression(A, oper); + else + newReturn = gen_return_with_expression(A, oper); + + if (!newReturn) + return; + + /* do substitutions on the new 'return' code */ + slang_substitute(A, newReturn, + substCount, substOld, substNew, GL_FALSE); + + /* install new 'return' code */ + slang_operation_copy(oper, newReturn); + slang_operation_destruct(newReturn); + } + break; + + case SLANG_OPER_ASSIGN: + case SLANG_OPER_SUBSCRIPT: + /* special case: + * child[0] can't have substitutions but child[1] can. + */ + slang_substitute(A, &oper->children[0], + substCount, substOld, substNew, GL_TRUE); + slang_substitute(A, &oper->children[1], + substCount, substOld, substNew, GL_FALSE); + break; + case SLANG_OPER_FIELD: + /* XXX NEW - test */ + slang_substitute(A, &oper->children[0], + substCount, substOld, substNew, GL_TRUE); + break; + default: + { + GLuint i; + for (i = 0; i < oper->num_children; i++) + slang_substitute(A, &oper->children[i], + substCount, substOld, substNew, GL_FALSE); + } + } +} + + +/** + * Produce inline code for a call to an assembly instruction. + * This is typically used to compile a call to a built-in function like this: + * + * vec4 mix(const vec4 x, const vec4 y, const vec4 a) + * { + * __asm vec4_lrp __retVal, a, y, x; + * } + * + * + * A call to + * r = mix(p1, p2, p3); + * + * Becomes: + * + * mov + * / \ + * r vec4_lrp + * / | \ + * p3 p2 p1 + * + * We basically translate a SLANG_OPER_CALL into a SLANG_OPER_ASM. + */ +static slang_operation * +slang_inline_asm_function(slang_assemble_ctx *A, + slang_function *fun, slang_operation *oper) +{ + const GLuint numArgs = oper->num_children; + GLuint i; + slang_operation *inlined; + const GLboolean haveRetValue = _slang_function_has_return_value(fun); + slang_variable **substOld; + slang_operation **substNew; + + ASSERT(slang_is_asm_function(fun)); + ASSERT(fun->param_count == numArgs + haveRetValue); + + /* + printf("Inline %s as %s\n", + (char*) fun->header.a_name, + (char*) fun->body->children[0].a_id); + */ + + /* + * We'll substitute formal params with actual args in the asm call. + */ + substOld = (slang_variable **) + _slang_alloc(numArgs * sizeof(slang_variable *)); + substNew = (slang_operation **) + _slang_alloc(numArgs * sizeof(slang_operation *)); + for (i = 0; i < numArgs; i++) { + substOld[i] = fun->parameters->variables[i]; + substNew[i] = oper->children + i; + } + + /* make a copy of the code to inline */ + inlined = slang_operation_new(1); + slang_operation_copy(inlined, &fun->body->children[0]); + if (haveRetValue) { + /* get rid of the __retVal child */ + inlined->num_children--; + for (i = 0; i < inlined->num_children; i++) { + inlined->children[i] = inlined->children[i + 1]; + } + } + + /* now do formal->actual substitutions */ + slang_substitute(A, inlined, numArgs, substOld, substNew, GL_FALSE); + + _slang_free(substOld); + _slang_free(substNew); + +#if 0 + printf("+++++++++++++ inlined asm function %s +++++++++++++\n", + (char *) fun->header.a_name); + slang_print_tree(inlined, 3); + printf("+++++++++++++++++++++++++++++++++++++++++++++++++++\n"); +#endif + + return inlined; +} + + +/** + * Inline the given function call operation. + * Return a new slang_operation that corresponds to the inlined code. + */ +static slang_operation * +slang_inline_function_call(slang_assemble_ctx * A, slang_function *fun, + slang_operation *oper, slang_operation *returnOper) +{ + typedef enum { + SUBST = 1, + COPY_IN, + COPY_OUT + } ParamMode; + ParamMode *paramMode; + const GLboolean haveRetValue = _slang_function_has_return_value(fun); + const GLuint numArgs = oper->num_children; + const GLuint totalArgs = numArgs + haveRetValue; + slang_operation *args = oper->children; + slang_operation *inlined, *top; + slang_variable **substOld; + slang_operation **substNew; + GLuint substCount, numCopyIn, i; + slang_function *prevFunction; + slang_variable_scope *newScope = NULL; + + /* save / push */ + prevFunction = A->CurFunction; + A->CurFunction = fun; + + /*assert(oper->type == SLANG_OPER_CALL); (or (matrix) multiply, etc) */ + assert(fun->param_count == totalArgs); + + /* allocate temporary arrays */ + paramMode = (ParamMode *) + _slang_alloc(totalArgs * sizeof(ParamMode)); + substOld = (slang_variable **) + _slang_alloc(totalArgs * sizeof(slang_variable *)); + substNew = (slang_operation **) + _slang_alloc(totalArgs * sizeof(slang_operation *)); + +#if 0 + printf("\nInline call to %s (total vars=%d nparams=%d)\n", + (char *) fun->header.a_name, + fun->parameters->num_variables, numArgs); +#endif + + if (haveRetValue && !returnOper) { + /* Create 3-child comma sequence for inlined code: + * child[0]: declare __resultTmp + * child[1]: inlined function body + * child[2]: __resultTmp + */ + slang_operation *commaSeq; + slang_operation *declOper = NULL; + slang_variable *resultVar; + + commaSeq = slang_operation_new(1); + commaSeq->type = SLANG_OPER_SEQUENCE; + assert(commaSeq->locals); + commaSeq->locals->outer_scope = oper->locals->outer_scope; + commaSeq->num_children = 3; + commaSeq->children = slang_operation_new(3); + /* allocate the return var */ + resultVar = slang_variable_scope_grow(commaSeq->locals); + /* + printf("Alloc __resultTmp in scope %p for retval of calling %s\n", + (void*)commaSeq->locals, (char *) fun->header.a_name); + */ + + resultVar->a_name = slang_atom_pool_atom(A->atoms, "__resultTmp"); + resultVar->type = fun->header.type; /* XXX copy? */ + resultVar->isTemp = GL_TRUE; + + /* child[0] = __resultTmp declaration */ + declOper = &commaSeq->children[0]; + declOper->type = SLANG_OPER_VARIABLE_DECL; + declOper->a_id = resultVar->a_name; + declOper->locals->outer_scope = commaSeq->locals; + + /* child[1] = function body */ + inlined = &commaSeq->children[1]; + inlined->locals->outer_scope = commaSeq->locals; + + /* child[2] = __resultTmp reference */ + returnOper = &commaSeq->children[2]; + returnOper->type = SLANG_OPER_IDENTIFIER; + returnOper->a_id = resultVar->a_name; + returnOper->locals->outer_scope = commaSeq->locals; + + top = commaSeq; + } + else { + top = inlined = slang_operation_new(1); + /* XXXX this may be inappropriate!!!! */ + inlined->locals->outer_scope = oper->locals->outer_scope; + } + + + assert(inlined->locals); + + /* Examine the parameters, look for inout/out params, look for possible + * substitutions, etc: + * param type behaviour + * in copy actual to local + * const in substitute param with actual + * out copy out + */ + substCount = 0; + for (i = 0; i < totalArgs; i++) { + slang_variable *p = fun->parameters->variables[i]; + /* + printf("Param %d: %s %s \n", i, + slang_type_qual_string(p->type.qualifier), + (char *) p->a_name); + */ + if (p->type.qualifier == SLANG_QUAL_INOUT || + p->type.qualifier == SLANG_QUAL_OUT) { + /* an output param */ + slang_operation *arg; + if (i < numArgs) + arg = &args[i]; + else + arg = returnOper; + paramMode[i] = SUBST; + + if (arg->type == SLANG_OPER_IDENTIFIER) + slang_resolve_variable(arg); + + /* replace parameter 'p' with argument 'arg' */ + substOld[substCount] = p; + substNew[substCount] = arg; /* will get copied */ + substCount++; + } + else if (p->type.qualifier == SLANG_QUAL_CONST) { + /* a constant input param */ + if (args[i].type == SLANG_OPER_IDENTIFIER || + args[i].type == SLANG_OPER_LITERAL_FLOAT || + args[i].type == SLANG_OPER_SUBSCRIPT) { + /* replace all occurances of this parameter variable with the + * actual argument variable or a literal. + */ + paramMode[i] = SUBST; + slang_resolve_variable(&args[i]); + substOld[substCount] = p; + substNew[substCount] = &args[i]; /* will get copied */ + substCount++; + } + else { + paramMode[i] = COPY_IN; + } + } + else { + paramMode[i] = COPY_IN; + } + assert(paramMode[i]); + } + + /* actual code inlining: */ + slang_operation_copy(inlined, fun->body); + + /*** XXX review this */ + assert(inlined->type == SLANG_OPER_BLOCK_NO_NEW_SCOPE || + inlined->type == SLANG_OPER_BLOCK_NEW_SCOPE); + inlined->type = SLANG_OPER_BLOCK_NEW_SCOPE; + +#if 0 + printf("======================= orig body code ======================\n"); + printf("=== params scope = %p\n", (void*) fun->parameters); + slang_print_tree(fun->body, 8); + printf("======================= copied code =========================\n"); + slang_print_tree(inlined, 8); +#endif + + /* do parameter substitution in inlined code: */ + slang_substitute(A, inlined, substCount, substOld, substNew, GL_FALSE); + +#if 0 + printf("======================= subst code ==========================\n"); + slang_print_tree(inlined, 8); + printf("=============================================================\n"); +#endif + + /* New prolog statements: (inserted before the inlined code) + * Copy the 'in' arguments. + */ + numCopyIn = 0; + for (i = 0; i < numArgs; i++) { + if (paramMode[i] == COPY_IN) { + slang_variable *p = fun->parameters->variables[i]; + /* declare parameter 'p' */ + slang_operation *decl = slang_operation_insert(&inlined->num_children, + &inlined->children, + numCopyIn); + + decl->type = SLANG_OPER_VARIABLE_DECL; + assert(decl->locals); + decl->locals->outer_scope = inlined->locals; + decl->a_id = p->a_name; + decl->num_children = 1; + decl->children = slang_operation_new(1); + + /* child[0] is the var's initializer */ + slang_operation_copy(&decl->children[0], args + i); + + /* add parameter 'p' to the local variable scope here */ + { + slang_variable *pCopy = slang_variable_scope_grow(inlined->locals); + pCopy->type = p->type; + pCopy->a_name = p->a_name; + pCopy->array_len = p->array_len; + } + + newScope = inlined->locals; + numCopyIn++; + } + } + + /* Now add copies of the function's local vars to the new variable scope */ + for (i = totalArgs; i < fun->parameters->num_variables; i++) { + slang_variable *p = fun->parameters->variables[i]; + slang_variable *pCopy = slang_variable_scope_grow(inlined->locals); + pCopy->type = p->type; + pCopy->a_name = p->a_name; + pCopy->array_len = p->array_len; + } + + + /* New epilog statements: + * 1. Create end of function label to jump to from return statements. + * 2. Copy the 'out' parameter vars + */ + { + slang_operation *lab = slang_operation_insert(&inlined->num_children, + &inlined->children, + inlined->num_children); + lab->type = SLANG_OPER_LABEL; + lab->label = A->curFuncEndLabel; + } + + for (i = 0; i < totalArgs; i++) { + if (paramMode[i] == COPY_OUT) { + const slang_variable *p = fun->parameters->variables[i]; + /* actualCallVar = outParam */ + /*if (i > 0 || !haveRetValue)*/ + slang_operation *ass = slang_operation_insert(&inlined->num_children, + &inlined->children, + inlined->num_children); + ass->type = SLANG_OPER_ASSIGN; + ass->num_children = 2; + ass->locals->outer_scope = inlined->locals; + ass->children = slang_operation_new(2); + ass->children[0] = args[i]; /*XXX copy */ + ass->children[1].type = SLANG_OPER_IDENTIFIER; + ass->children[1].a_id = p->a_name; + ass->children[1].locals->outer_scope = ass->locals; + } + } + + _slang_free(paramMode); + _slang_free(substOld); + _slang_free(substNew); + + /* Update scoping to use the new local vars instead of the + * original function's vars. This is especially important + * for nested inlining. + */ + if (newScope) + slang_replace_scope(inlined, fun->parameters, newScope); + +#if 0 + printf("Done Inline call to %s (total vars=%d nparams=%d)\n\n", + (char *) fun->header.a_name, + fun->parameters->num_variables, numArgs); + slang_print_tree(top, 0); +#endif + + /* pop */ + A->CurFunction = prevFunction; + + return top; +} + + +/** + * Insert declaration for "bool __notRetFlag" in given block operation. + * This is used when we can't emit "early" return statements in subroutines. + */ +static void +declare_return_flag(slang_assemble_ctx *A, slang_operation *oper) +{ + slang_operation *decl; + + assert(oper->type == SLANG_OPER_BLOCK_NEW_SCOPE || + oper->type == SLANG_OPER_SEQUENCE); + + decl = slang_operation_insert_child(oper, 1); + + slang_generate_declaration(A, oper->locals, decl, + SLANG_SPEC_BOOL, "__notRetFlag", GL_TRUE); + + /*slang_print_tree(oper, 0);*/ +} + + +/** + * Recursively replace instances of the old node type with the new type. + */ +static void +replace_node_type(slang_operation *oper, slang_operation_type oldType, + slang_operation_type newType) +{ + GLuint i; + + if (oper->type == oldType) + oper->type = newType; + + for (i = 0; i < slang_oper_num_children(oper); i++) { + replace_node_type(slang_oper_child(oper, i), oldType, newType); + } +} + + + +/** + * Test if the given function body has an "early return". That is, there's + * a 'return' statement that's not the very last instruction in the body. + */ +static GLboolean +has_early_return(const slang_operation *funcBody) +{ + GLuint retCount = _slang_count_node_type(funcBody, SLANG_OPER_RETURN); + if (retCount == 0) + return GL_FALSE; + else if (retCount == 1 && _slang_is_tail_return(funcBody)) + return GL_FALSE; + else + return GL_TRUE; +} + + +/** + * Emit IR code for a function call. This does one of two things: + * 1. Inline the function's code + * 2. Create an IR for the function's body and create a real call to it. + */ +static slang_ir_node * +_slang_gen_function_call(slang_assemble_ctx *A, slang_function *fun, + slang_operation *oper, slang_operation *dest) +{ + slang_ir_node *n; + slang_operation *instance; + slang_label *prevFuncEndLabel; + char name[200]; + + prevFuncEndLabel = A->curFuncEndLabel; + sprintf(name, "__endOfFunc_%s_", (char *) fun->header.a_name); + A->curFuncEndLabel = _slang_label_new(name); + assert(A->curFuncEndLabel); + + /* + * 'instance' is basically a copy of the function's body with various + * transformations. + */ + + if (slang_is_asm_function(fun) && !dest) { + /* assemble assembly function - tree style */ + instance = slang_inline_asm_function(A, fun, oper); + } + else { + /* non-assembly function */ + /* We always generate an "inline-able" block of code here. + * We may either: + * 1. insert the inline code + * 2. Generate a call to the "inline" code as a subroutine + */ + const GLboolean earlyReturn = has_early_return(fun->body); + + if (earlyReturn && !A->EmitContReturn) { + A->UseReturnFlag = GL_TRUE; + } + + instance = slang_inline_function_call(A, fun, oper, dest); + if (!instance) + return NULL; + + if (earlyReturn) { + /* The function we're calling has one or more 'return' statements + * that prevent us from inlining the function's code. + * + * In this case, change the function's body type from + * SLANG_OPER_BLOCK_NEW_SCOPE to SLANG_OPER_NON_INLINED_CALL. + * During code emit this will result in a true subroutine call. + * + * Also, convert SLANG_OPER_RETURN_INLINED nodes to SLANG_OPER_RETURN. + */ + slang_operation *callOper; + + assert(instance->type == SLANG_OPER_BLOCK_NEW_SCOPE || + instance->type == SLANG_OPER_SEQUENCE); + + if (_slang_function_has_return_value(fun) && !dest) { + assert(instance->children[0].type == SLANG_OPER_VARIABLE_DECL); + assert(instance->children[2].type == SLANG_OPER_IDENTIFIER); + callOper = &instance->children[1]; + } + else { + callOper = instance; + } + + if (A->UseReturnFlag) { + /* Early returns not supported. Create a _returnFlag variable + * that's set upon 'return' and tested elsewhere to no-op any + * remaining instructions in the subroutine. + */ + assert(callOper->type == SLANG_OPER_BLOCK_NEW_SCOPE || + callOper->type == SLANG_OPER_SEQUENCE); + declare_return_flag(A, callOper); + } + else { + /* We can emit real 'return' statements. If we generated any + * 'inline return' statements during function instantiation, + * change them back to regular 'return' statements. + */ + replace_node_type(instance, SLANG_OPER_RETURN_INLINED, + SLANG_OPER_RETURN); + } + + callOper->type = SLANG_OPER_NON_INLINED_CALL; + callOper->fun = fun; + callOper->label = _slang_label_new_unique((char*) fun->header.a_name); + } + else { + /* If there are any 'return' statements remaining, they're at the + * very end of the function and can effectively become no-ops. + */ + replace_node_type(instance, SLANG_OPER_RETURN_INLINED, + SLANG_OPER_VOID); + } + } + + if (!instance) + return NULL; + + /* Replace the function call with the instance block (or new CALL stmt) */ + slang_operation_destruct(oper); + *oper = *instance; + _slang_free(instance); + +#if 0 + assert(instance->locals); + printf("*** Inlined code for call to %s:\n", (char*) fun->header.a_name); + slang_print_tree(oper, 10); + printf("\n"); +#endif + + n = _slang_gen_operation(A, oper); + + /*_slang_label_delete(A->curFuncEndLabel);*/ + A->curFuncEndLabel = prevFuncEndLabel; + + if (A->pragmas->Debug) { + char s[1000]; + _mesa_snprintf(s, sizeof(s), "Call/inline %s()", (char *) fun->header.a_name); + n->Comment = _slang_strdup(s); + } + + A->UseReturnFlag = GL_FALSE; + + return n; +} + + +static slang_asm_info * +slang_find_asm_info(const char *name) +{ + GLuint i; + for (i = 0; AsmInfo[i].Name; i++) { + if (_mesa_strcmp(AsmInfo[i].Name, name) == 0) { + return AsmInfo + i; + } + } + return NULL; +} + + +/** + * Some write-masked assignments are simple, but others are hard. + * Simple example: + * vec3 v; + * v.xy = vec2(a, b); + * Hard example: + * vec3 v; + * v.zy = vec2(a, b); + * this gets transformed/swizzled into: + * v.zy = vec2(a, b).*yx* (* = don't care) + * This function helps to determine simple vs. non-simple. + */ +static GLboolean +_slang_simple_writemask(GLuint writemask, GLuint swizzle) +{ + switch (writemask) { + case WRITEMASK_X: + return GET_SWZ(swizzle, 0) == SWIZZLE_X; + case WRITEMASK_Y: + return GET_SWZ(swizzle, 1) == SWIZZLE_Y; + case WRITEMASK_Z: + return GET_SWZ(swizzle, 2) == SWIZZLE_Z; + case WRITEMASK_W: + return GET_SWZ(swizzle, 3) == SWIZZLE_W; + case WRITEMASK_XY: + return (GET_SWZ(swizzle, 0) == SWIZZLE_X) + && (GET_SWZ(swizzle, 1) == SWIZZLE_Y); + case WRITEMASK_XYZ: + return (GET_SWZ(swizzle, 0) == SWIZZLE_X) + && (GET_SWZ(swizzle, 1) == SWIZZLE_Y) + && (GET_SWZ(swizzle, 2) == SWIZZLE_Z); + case WRITEMASK_XYZW: + return swizzle == SWIZZLE_NOOP; + default: + return GL_FALSE; + } +} + + +/** + * Convert the given swizzle into a writemask. In some cases this + * is trivial, in other cases, we'll need to also swizzle the right + * hand side to put components in the right places. + * See comment above for more info. + * XXX this function could be simplified and should probably be renamed. + * \param swizzle the incoming swizzle + * \param writemaskOut returns the writemask + * \param swizzleOut swizzle to apply to the right-hand-side + * \return GL_FALSE for simple writemasks, GL_TRUE for non-simple + */ +static GLboolean +swizzle_to_writemask(slang_assemble_ctx *A, GLuint swizzle, + GLuint *writemaskOut, GLuint *swizzleOut) +{ + GLuint mask = 0x0, newSwizzle[4]; + GLint i, size; + + /* make new dst writemask, compute size */ + for (i = 0; i < 4; i++) { + const GLuint swz = GET_SWZ(swizzle, i); + if (swz == SWIZZLE_NIL) { + /* end */ + break; + } + assert(swz >= 0 && swz <= 3); + + if (swizzle != SWIZZLE_XXXX && + swizzle != SWIZZLE_YYYY && + swizzle != SWIZZLE_ZZZZ && + swizzle != SWIZZLE_WWWW && + (mask & (1 << swz))) { + /* a channel can't be specified twice (ex: ".xyyz") */ + slang_info_log_error(A->log, "Invalid writemask '%s'", + _mesa_swizzle_string(swizzle, 0, 0)); + return GL_FALSE; + } + + mask |= (1 << swz); + } + assert(mask <= 0xf); + size = i; /* number of components in mask/swizzle */ + + *writemaskOut = mask; + + /* make new src swizzle, by inversion */ + for (i = 0; i < 4; i++) { + newSwizzle[i] = i; /*identity*/ + } + for (i = 0; i < size; i++) { + const GLuint swz = GET_SWZ(swizzle, i); + newSwizzle[swz] = i; + } + *swizzleOut = MAKE_SWIZZLE4(newSwizzle[0], + newSwizzle[1], + newSwizzle[2], + newSwizzle[3]); + + if (_slang_simple_writemask(mask, *swizzleOut)) { + if (size >= 1) + assert(GET_SWZ(*swizzleOut, 0) == SWIZZLE_X); + if (size >= 2) + assert(GET_SWZ(*swizzleOut, 1) == SWIZZLE_Y); + if (size >= 3) + assert(GET_SWZ(*swizzleOut, 2) == SWIZZLE_Z); + if (size >= 4) + assert(GET_SWZ(*swizzleOut, 3) == SWIZZLE_W); + return GL_TRUE; + } + else + return GL_FALSE; +} + + +#if 0 /* not used, but don't remove just yet */ +/** + * Recursively traverse 'oper' to produce a swizzle mask in the event + * of any vector subscripts and swizzle suffixes. + * Ex: for "vec4 v", "v[2].x" resolves to v.z + */ +static GLuint +resolve_swizzle(const slang_operation *oper) +{ + if (oper->type == SLANG_OPER_FIELD) { + /* writemask from .xyzw suffix */ + slang_swizzle swz; + if (_slang_is_swizzle((char*) oper->a_id, 4, &swz)) { + GLuint swizzle = MAKE_SWIZZLE4(swz.swizzle[0], + swz.swizzle[1], + swz.swizzle[2], + swz.swizzle[3]); + GLuint child_swizzle = resolve_swizzle(&oper->children[0]); + GLuint s = _slang_swizzle_swizzle(child_swizzle, swizzle); + return s; + } + else + return SWIZZLE_XYZW; + } + else if (oper->type == SLANG_OPER_SUBSCRIPT && + oper->children[1].type == SLANG_OPER_LITERAL_INT) { + /* writemask from [index] */ + GLuint child_swizzle = resolve_swizzle(&oper->children[0]); + GLuint i = (GLuint) oper->children[1].literal[0]; + GLuint swizzle; + GLuint s; + switch (i) { + case 0: + swizzle = SWIZZLE_XXXX; + break; + case 1: + swizzle = SWIZZLE_YYYY; + break; + case 2: + swizzle = SWIZZLE_ZZZZ; + break; + case 3: + swizzle = SWIZZLE_WWWW; + break; + default: + swizzle = SWIZZLE_XYZW; + } + s = _slang_swizzle_swizzle(child_swizzle, swizzle); + return s; + } + else { + return SWIZZLE_XYZW; + } +} +#endif + + +#if 0 +/** + * Recursively descend through swizzle nodes to find the node's storage info. + */ +static slang_ir_storage * +get_store(const slang_ir_node *n) +{ + if (n->Opcode == IR_SWIZZLE) { + return get_store(n->Children[0]); + } + return n->Store; +} +#endif + + +/** + * Generate IR tree for an asm instruction/operation such as: + * __asm vec4_dot __retVal.x, v1, v2; + */ +static slang_ir_node * +_slang_gen_asm(slang_assemble_ctx *A, slang_operation *oper, + slang_operation *dest) +{ + const slang_asm_info *info; + slang_ir_node *kids[3], *n; + GLuint j, firstOperand; + + assert(oper->type == SLANG_OPER_ASM); + + info = slang_find_asm_info((char *) oper->a_id); + if (!info) { + _mesa_problem(NULL, "undefined __asm function %s\n", + (char *) oper->a_id); + assert(info); + } + assert(info->NumParams <= 3); + + if (info->NumParams == oper->num_children) { + /* Storage for result is not specified. + * Children[0], [1], [2] are the operands. + */ + firstOperand = 0; + } + else { + /* Storage for result (child[0]) is specified. + * Children[1], [2], [3] are the operands. + */ + firstOperand = 1; + } + + /* assemble child(ren) */ + kids[0] = kids[1] = kids[2] = NULL; + for (j = 0; j < info->NumParams; j++) { + kids[j] = _slang_gen_operation(A, &oper->children[firstOperand + j]); + if (!kids[j]) + return NULL; + } + + n = new_node3(info->Opcode, kids[0], kids[1], kids[2]); + + if (firstOperand) { + /* Setup n->Store to be a particular location. Otherwise, storage + * for the result (a temporary) will be allocated later. + */ + slang_operation *dest_oper; + slang_ir_node *n0; + + dest_oper = &oper->children[0]; + + n0 = _slang_gen_operation(A, dest_oper); + if (!n0) + return NULL; + + assert(!n->Store); + n->Store = n0->Store; + + assert(n->Store->File != PROGRAM_UNDEFINED || n->Store->Parent); + + _slang_free(n0); + } + + return n; +} + + +#if 0 +static void +print_funcs(struct slang_function_scope_ *scope, const char *name) +{ + GLuint i; + for (i = 0; i < scope->num_functions; i++) { + slang_function *f = &scope->functions[i]; + if (!name || strcmp(name, (char*) f->header.a_name) == 0) + printf(" %s (%d args)\n", name, f->param_count); + + } + if (scope->outer_scope) + print_funcs(scope->outer_scope, name); +} +#endif + + +/** + * Find a function of the given name, taking 'numArgs' arguments. + * This is the function we'll try to call when there is no exact match + * between function parameters and call arguments. + * + * XXX we should really create a list of candidate functions and try + * all of them... + */ +static slang_function * +_slang_find_function_by_argc(slang_function_scope *scope, + const char *name, int numArgs) +{ + while (scope) { + GLuint i; + for (i = 0; i < scope->num_functions; i++) { + slang_function *f = &scope->functions[i]; + if (strcmp(name, (char*) f->header.a_name) == 0) { + int haveRetValue = _slang_function_has_return_value(f); + if (numArgs == f->param_count - haveRetValue) + return f; + } + } + scope = scope->outer_scope; + } + + return NULL; +} + + +static slang_function * +_slang_find_function_by_max_argc(slang_function_scope *scope, + const char *name) +{ + slang_function *maxFunc = NULL; + GLuint maxArgs = 0; + + while (scope) { + GLuint i; + for (i = 0; i < scope->num_functions; i++) { + slang_function *f = &scope->functions[i]; + if (strcmp(name, (char*) f->header.a_name) == 0) { + if (f->param_count > maxArgs) { + maxArgs = f->param_count; + maxFunc = f; + } + } + } + scope = scope->outer_scope; + } + + return maxFunc; +} + + +/** + * Generate a new slang_function which is a constructor for a user-defined + * struct type. + */ +static slang_function * +_slang_make_struct_constructor(slang_assemble_ctx *A, slang_struct *str) +{ + const GLint numFields = str->fields->num_variables; + slang_function *fun = slang_function_new(SLANG_FUNC_CONSTRUCTOR); + + /* function header (name, return type) */ + fun->header.a_name = str->a_name; + fun->header.type.qualifier = SLANG_QUAL_NONE; + fun->header.type.specifier.type = SLANG_SPEC_STRUCT; + fun->header.type.specifier._struct = str; + + /* function parameters (= struct's fields) */ + { + GLint i; + for (i = 0; i < numFields; i++) { + /* + printf("Field %d: %s\n", i, (char*) str->fields->variables[i]->a_name); + */ + slang_variable *p = slang_variable_scope_grow(fun->parameters); + *p = *str->fields->variables[i]; /* copy the variable and type */ + p->type.qualifier = SLANG_QUAL_CONST; + } + fun->param_count = fun->parameters->num_variables; + } + + /* Add __retVal to params */ + { + slang_variable *p = slang_variable_scope_grow(fun->parameters); + slang_atom a_retVal = slang_atom_pool_atom(A->atoms, "__retVal"); + assert(a_retVal); + p->a_name = a_retVal; + p->type = fun->header.type; + p->type.qualifier = SLANG_QUAL_OUT; + fun->param_count++; + } + + /* function body is: + * block: + * declare T; + * T.f1 = p1; + * T.f2 = p2; + * ... + * T.fn = pn; + * return T; + */ + { + slang_variable_scope *scope; + slang_variable *var; + GLint i; + + fun->body = slang_operation_new(1); + fun->body->type = SLANG_OPER_BLOCK_NEW_SCOPE; + fun->body->num_children = numFields + 2; + fun->body->children = slang_operation_new(numFields + 2); + + scope = fun->body->locals; + scope->outer_scope = fun->parameters; + + /* create local var 't' */ + var = slang_variable_scope_grow(scope); + var->a_name = slang_atom_pool_atom(A->atoms, "t"); + var->type = fun->header.type; + + /* declare t */ + { + slang_operation *decl; + + decl = &fun->body->children[0]; + decl->type = SLANG_OPER_VARIABLE_DECL; + decl->locals = _slang_variable_scope_new(scope); + decl->a_id = var->a_name; + } + + /* assign params to fields of t */ + for (i = 0; i < numFields; i++) { + slang_operation *assign = &fun->body->children[1 + i]; + + assign->type = SLANG_OPER_ASSIGN; + assign->locals = _slang_variable_scope_new(scope); + assign->num_children = 2; + assign->children = slang_operation_new(2); + + { + slang_operation *lhs = &assign->children[0]; + + lhs->type = SLANG_OPER_FIELD; + lhs->locals = _slang_variable_scope_new(scope); + lhs->num_children = 1; + lhs->children = slang_operation_new(1); + lhs->a_id = str->fields->variables[i]->a_name; + + lhs->children[0].type = SLANG_OPER_IDENTIFIER; + lhs->children[0].a_id = var->a_name; + lhs->children[0].locals = _slang_variable_scope_new(scope); + +#if 0 + lhs->children[1].num_children = 1; + lhs->children[1].children = slang_operation_new(1); + lhs->children[1].children[0].type = SLANG_OPER_IDENTIFIER; + lhs->children[1].children[0].a_id = str->fields->variables[i]->a_name; + lhs->children[1].children->locals = _slang_variable_scope_new(scope); +#endif + } + + { + slang_operation *rhs = &assign->children[1]; + + rhs->type = SLANG_OPER_IDENTIFIER; + rhs->locals = _slang_variable_scope_new(scope); + rhs->a_id = str->fields->variables[i]->a_name; + } + } + + /* return t; */ + { + slang_operation *ret = &fun->body->children[numFields + 1]; + + ret->type = SLANG_OPER_RETURN; + ret->locals = _slang_variable_scope_new(scope); + ret->num_children = 1; + ret->children = slang_operation_new(1); + ret->children[0].type = SLANG_OPER_IDENTIFIER; + ret->children[0].a_id = var->a_name; + ret->children[0].locals = _slang_variable_scope_new(scope); + } + } + /* + slang_print_function(fun, 1); + */ + return fun; +} + + +/** + * Find/create a function (constructor) for the given structure name. + */ +static slang_function * +_slang_locate_struct_constructor(slang_assemble_ctx *A, const char *name) +{ + unsigned int i; + for (i = 0; i < A->space.structs->num_structs; i++) { + slang_struct *str = &A->space.structs->structs[i]; + if (strcmp(name, (const char *) str->a_name) == 0) { + /* found a structure type that matches the function name */ + if (!str->constructor) { + /* create the constructor function now */ + str->constructor = _slang_make_struct_constructor(A, str); + } + return str->constructor; + } + } + return NULL; +} + + +/** + * Generate a new slang_function to satisfy a call to an array constructor. + * Ex: float[3](1., 2., 3.) + */ +static slang_function * +_slang_make_array_constructor(slang_assemble_ctx *A, slang_operation *oper) +{ + slang_type_specifier_type baseType; + slang_function *fun; + int num_elements; + + fun = slang_function_new(SLANG_FUNC_CONSTRUCTOR); + if (!fun) + return NULL; + + baseType = slang_type_specifier_type_from_string((char *) oper->a_id); + + num_elements = oper->num_children; + + /* function header, return type */ + { + fun->header.a_name = oper->a_id; + fun->header.type.qualifier = SLANG_QUAL_NONE; + fun->header.type.specifier.type = SLANG_SPEC_ARRAY; + fun->header.type.specifier._array = + slang_type_specifier_new(baseType, NULL, NULL); + fun->header.type.array_len = num_elements; + } + + /* function parameters (= number of elements) */ + { + GLint i; + for (i = 0; i < num_elements; i++) { + /* + printf("Field %d: %s\n", i, (char*) str->fields->variables[i]->a_name); + */ + slang_variable *p = slang_variable_scope_grow(fun->parameters); + char name[10]; + _mesa_snprintf(name, sizeof(name), "p%d", i); + p->a_name = slang_atom_pool_atom(A->atoms, name); + p->type.qualifier = SLANG_QUAL_CONST; + p->type.specifier.type = baseType; + } + fun->param_count = fun->parameters->num_variables; + } + + /* Add __retVal to params */ + { + slang_variable *p = slang_variable_scope_grow(fun->parameters); + slang_atom a_retVal = slang_atom_pool_atom(A->atoms, "__retVal"); + assert(a_retVal); + p->a_name = a_retVal; + p->type = fun->header.type; + p->type.qualifier = SLANG_QUAL_OUT; + p->type.specifier.type = baseType; + fun->param_count++; + } + + /* function body is: + * block: + * declare T; + * T[0] = p0; + * T[1] = p1; + * ... + * T[n] = pn; + * return T; + */ + { + slang_variable_scope *scope; + slang_variable *var; + GLint i; + + fun->body = slang_operation_new(1); + fun->body->type = SLANG_OPER_BLOCK_NEW_SCOPE; + fun->body->num_children = num_elements + 2; + fun->body->children = slang_operation_new(num_elements + 2); + + scope = fun->body->locals; + scope->outer_scope = fun->parameters; + + /* create local var 't' */ + var = slang_variable_scope_grow(scope); + var->a_name = slang_atom_pool_atom(A->atoms, "ttt"); + var->type = fun->header.type;/*XXX copy*/ + + /* declare t */ + { + slang_operation *decl; + + decl = &fun->body->children[0]; + decl->type = SLANG_OPER_VARIABLE_DECL; + decl->locals = _slang_variable_scope_new(scope); + decl->a_id = var->a_name; + } + + /* assign params to elements of t */ + for (i = 0; i < num_elements; i++) { + slang_operation *assign = &fun->body->children[1 + i]; + + assign->type = SLANG_OPER_ASSIGN; + assign->locals = _slang_variable_scope_new(scope); + assign->num_children = 2; + assign->children = slang_operation_new(2); + + { + slang_operation *lhs = &assign->children[0]; + + lhs->type = SLANG_OPER_SUBSCRIPT; + lhs->locals = _slang_variable_scope_new(scope); + lhs->num_children = 2; + lhs->children = slang_operation_new(2); + + lhs->children[0].type = SLANG_OPER_IDENTIFIER; + lhs->children[0].a_id = var->a_name; + lhs->children[0].locals = _slang_variable_scope_new(scope); + + lhs->children[1].type = SLANG_OPER_LITERAL_INT; + lhs->children[1].literal[0] = (GLfloat) i; + } + + { + slang_operation *rhs = &assign->children[1]; + + rhs->type = SLANG_OPER_IDENTIFIER; + rhs->locals = _slang_variable_scope_new(scope); + rhs->a_id = fun->parameters->variables[i]->a_name; + } + } + + /* return t; */ + { + slang_operation *ret = &fun->body->children[num_elements + 1]; + + ret->type = SLANG_OPER_RETURN; + ret->locals = _slang_variable_scope_new(scope); + ret->num_children = 1; + ret->children = slang_operation_new(1); + ret->children[0].type = SLANG_OPER_IDENTIFIER; + ret->children[0].a_id = var->a_name; + ret->children[0].locals = _slang_variable_scope_new(scope); + } + } + + /* + slang_print_function(fun, 1); + */ + + return fun; +} + + +static GLboolean +_slang_is_vec_mat_type(const char *name) +{ + static const char *vecmat_types[] = { + "float", "int", "bool", + "vec2", "vec3", "vec4", + "ivec2", "ivec3", "ivec4", + "bvec2", "bvec3", "bvec4", + "mat2", "mat3", "mat4", + "mat2x3", "mat2x4", "mat3x2", "mat3x4", "mat4x2", "mat4x3", + NULL + }; + int i; + for (i = 0; vecmat_types[i]; i++) + if (_mesa_strcmp(name, vecmat_types[i]) == 0) + return GL_TRUE; + return GL_FALSE; +} + + +/** + * Assemble a function call, given a particular function name. + * \param name the function's name (operators like '*' are possible). + */ +static slang_ir_node * +_slang_gen_function_call_name(slang_assemble_ctx *A, const char *name, + slang_operation *oper, slang_operation *dest) +{ + slang_operation *params = oper->children; + const GLuint param_count = oper->num_children; + slang_atom atom; + slang_function *fun; + slang_ir_node *n; + + atom = slang_atom_pool_atom(A->atoms, name); + if (atom == SLANG_ATOM_NULL) + return NULL; + + if (oper->array_constructor) { + /* this needs special handling */ + fun = _slang_make_array_constructor(A, oper); + } + else { + /* Try to find function by name and exact argument type matching */ + GLboolean error = GL_FALSE; + fun = _slang_function_locate(A->space.funcs, atom, params, param_count, + &A->space, A->atoms, A->log, &error); + if (error) { + slang_info_log_error(A->log, + "Function '%s' not found (check argument types)", + name); + return NULL; + } + } + + if (!fun) { + /* Next, try locating a constructor function for a user-defined type */ + fun = _slang_locate_struct_constructor(A, name); + } + + /* + * At this point, some heuristics are used to try to find a function + * that matches the calling signature by means of casting or "unrolling" + * of constructors. + */ + + if (!fun && _slang_is_vec_mat_type(name)) { + /* Next, if this call looks like a vec() or mat() constructor call, + * try "unwinding" the args to satisfy a constructor. + */ + fun = _slang_find_function_by_max_argc(A->space.funcs, name); + if (fun) { + if (!_slang_adapt_call(oper, fun, &A->space, A->atoms, A->log)) { + slang_info_log_error(A->log, + "Function '%s' not found (check argument types)", + name); + return NULL; + } + } + } + + if (!fun && _slang_is_vec_mat_type(name)) { + /* Next, try casting args to the types of the formal parameters */ + int numArgs = oper->num_children; + fun = _slang_find_function_by_argc(A->space.funcs, name, numArgs); + if (!fun || !_slang_cast_func_params(oper, fun, &A->space, A->atoms, A->log)) { + slang_info_log_error(A->log, + "Function '%s' not found (check argument types)", + name); + return NULL; + } + assert(fun); + } + + if (!fun) { + slang_info_log_error(A->log, + "Function '%s' not found (check argument types)", + name); + return NULL; + } + + if (!fun->body) { + /* The function body may be in another compilation unit. + * We'll try concatenating the shaders and recompile at link time. + */ + A->UnresolvedRefs = GL_TRUE; + return new_node1(IR_NOP, NULL); + } + + /* type checking to be sure function's return type matches 'dest' type */ + if (dest) { + slang_typeinfo t0; + + slang_typeinfo_construct(&t0); + typeof_operation(A, dest, &t0); + + if (!slang_type_specifier_equal(&t0.spec, &fun->header.type.specifier)) { + slang_info_log_error(A->log, + "Incompatible type returned by call to '%s'", + name); + return NULL; + } + } + + n = _slang_gen_function_call(A, fun, oper, dest); + + if (n && !n->Store && !dest + && fun->header.type.specifier.type != SLANG_SPEC_VOID) { + /* setup n->Store for the result of the function call */ + GLint size = _slang_sizeof_type_specifier(&fun->header.type.specifier); + n->Store = _slang_new_ir_storage(PROGRAM_TEMPORARY, -1, size); + /*printf("Alloc storage for function result, size %d \n", size);*/ + } + + if (oper->array_constructor) { + /* free the temporary array constructor function now */ + slang_function_destruct(fun); + } + + return n; +} + + +static slang_ir_node * +_slang_gen_method_call(slang_assemble_ctx *A, slang_operation *oper) +{ + slang_atom *a_length = slang_atom_pool_atom(A->atoms, "length"); + slang_ir_node *n; + slang_variable *var; + + /* NOTE: In GLSL 1.20, there's only one kind of method + * call: array.length(). Anything else is an error. + */ + if (oper->a_id != a_length) { + slang_info_log_error(A->log, + "Undefined method call '%s'", (char *) oper->a_id); + return NULL; + } + + /* length() takes no arguments */ + if (oper->num_children > 0) { + slang_info_log_error(A->log, "Invalid arguments to length() method"); + return NULL; + } + + /* lookup the object/variable */ + var = _slang_variable_locate(oper->locals, oper->a_obj, GL_TRUE); + if (!var || var->type.specifier.type != SLANG_SPEC_ARRAY) { + slang_info_log_error(A->log, + "Undefined object '%s'", (char *) oper->a_obj); + return NULL; + } + + /* Create a float/literal IR node encoding the array length */ + n = new_node0(IR_FLOAT); + if (n) { + n->Value[0] = (float) _slang_array_length(var); + n->Store = _slang_new_ir_storage(PROGRAM_CONSTANT, -1, 1); + } + return n; +} + + +static GLboolean +_slang_is_constant_cond(const slang_operation *oper, GLboolean *value) +{ + if (oper->type == SLANG_OPER_LITERAL_FLOAT || + oper->type == SLANG_OPER_LITERAL_INT || + oper->type == SLANG_OPER_LITERAL_BOOL) { + if (oper->literal[0]) + *value = GL_TRUE; + else + *value = GL_FALSE; + return GL_TRUE; + } + else if (oper->type == SLANG_OPER_EXPRESSION && + oper->num_children == 1) { + return _slang_is_constant_cond(&oper->children[0], value); + } + return GL_FALSE; +} + + +/** + * Test if an operation is a scalar or boolean. + */ +static GLboolean +_slang_is_scalar_or_boolean(slang_assemble_ctx *A, slang_operation *oper) +{ + slang_typeinfo type; + GLint size; + + slang_typeinfo_construct(&type); + typeof_operation(A, oper, &type); + size = _slang_sizeof_type_specifier(&type.spec); + slang_typeinfo_destruct(&type); + return size == 1; +} + + +/** + * Test if an operation is boolean. + */ +static GLboolean +_slang_is_boolean(slang_assemble_ctx *A, slang_operation *oper) +{ + slang_typeinfo type; + GLboolean isBool; + + slang_typeinfo_construct(&type); + typeof_operation(A, oper, &type); + isBool = (type.spec.type == SLANG_SPEC_BOOL); + slang_typeinfo_destruct(&type); + return isBool; +} + + +/** + * Check if a loop contains a 'continue' statement. + * Stop looking if we find a nested loop. + */ +static GLboolean +_slang_loop_contains_continue(const slang_operation *oper) +{ + switch (oper->type) { + case SLANG_OPER_CONTINUE: + return GL_TRUE; + case SLANG_OPER_FOR: + case SLANG_OPER_DO: + case SLANG_OPER_WHILE: + /* stop upon finding a nested loop */ + return GL_FALSE; + default: + /* recurse */ + { + GLuint i; + for (i = 0; i < oper->num_children; i++) { + const slang_operation *child = slang_oper_child_const(oper, i); + if (_slang_loop_contains_continue(child)) + return GL_TRUE; + } + } + return GL_FALSE; + } +} + + +/** + * Check if a loop contains a 'continue' or 'break' statement. + * Stop looking if we find a nested loop. + */ +static GLboolean +_slang_loop_contains_continue_or_break(const slang_operation *oper) +{ + switch (oper->type) { + case SLANG_OPER_CONTINUE: + case SLANG_OPER_BREAK: + return GL_TRUE; + case SLANG_OPER_FOR: + case SLANG_OPER_DO: + case SLANG_OPER_WHILE: + /* stop upon finding a nested loop */ + return GL_FALSE; + default: + /* recurse */ + { + GLuint i; + for (i = 0; i < oper->num_children; i++) { + const slang_operation *child = slang_oper_child_const(oper, i); + if (_slang_loop_contains_continue_or_break(child)) + return GL_TRUE; + } + } + return GL_FALSE; + } +} + + +/** + * Replace 'break' and 'continue' statements inside a do and while loops. + * This is a recursive helper function used by + * _slang_gen_do/while_without_continue(). + */ +static void +replace_break_and_cont(slang_assemble_ctx *A, slang_operation *oper) +{ + switch (oper->type) { + case SLANG_OPER_BREAK: + /* replace 'break' with "_notBreakFlag = false; break" */ + { + slang_operation *block = oper; + block->type = SLANG_OPER_BLOCK_NEW_SCOPE; + slang_operation_add_children(block, 2); + { + slang_operation *assign = slang_oper_child(block, 0); + assign->type = SLANG_OPER_ASSIGN; + slang_operation_add_children(assign, 2); + { + slang_operation *lhs = slang_oper_child(assign, 0); + slang_operation_identifier(lhs, A, "_notBreakFlag"); + } + { + slang_operation *rhs = slang_oper_child(assign, 1); + slang_operation_literal_bool(rhs, GL_FALSE); + } + } + { + slang_operation *brk = slang_oper_child(block, 1); + brk->type = SLANG_OPER_BREAK; + assert(!brk->children); + } + } + break; + case SLANG_OPER_CONTINUE: + /* convert continue into a break */ + oper->type = SLANG_OPER_BREAK; + break; + case SLANG_OPER_FOR: + case SLANG_OPER_DO: + case SLANG_OPER_WHILE: + /* stop upon finding a nested loop */ + break; + default: + /* recurse */ + { + GLuint i; + for (i = 0; i < oper->num_children; i++) { + replace_break_and_cont(A, slang_oper_child(oper, i)); + } + } + } +} + + +/** + * Transform a while-loop so that continue statements are converted to breaks. + * Then do normal IR code generation. + * + * Before: + * + * while (LOOPCOND) { + * A; + * if (IFCOND) + * continue; + * B; + * break; + * C; + * } + * + * After: + * + * { + * bool _notBreakFlag = 1; + * while (_notBreakFlag && LOOPCOND) { + * do { + * A; + * if (IFCOND) { + * break; // was continue + * } + * B; + * _notBreakFlag = 0; // was + * break; // break + * C; + * } while (0) + * } + * } + */ +static slang_ir_node * +_slang_gen_while_without_continue(slang_assemble_ctx *A, slang_operation *oper) +{ + slang_operation *top; + slang_operation *innerBody; + + assert(oper->type == SLANG_OPER_WHILE); + + top = slang_operation_new(1); + top->type = SLANG_OPER_BLOCK_NEW_SCOPE; + top->locals->outer_scope = oper->locals->outer_scope; + slang_operation_add_children(top, 2); + + /* declare: bool _notBreakFlag = true */ + { + slang_operation *condDecl = slang_oper_child(top, 0); + slang_generate_declaration(A, top->locals, condDecl, + SLANG_SPEC_BOOL, "_notBreakFlag", GL_TRUE); + } + + /* build outer while-loop: while (_notBreakFlag && LOOPCOND) { ... } */ + { + slang_operation *outerWhile = slang_oper_child(top, 1); + outerWhile->type = SLANG_OPER_WHILE; + slang_operation_add_children(outerWhile, 2); + + /* _notBreakFlag && LOOPCOND */ + { + slang_operation *cond = slang_oper_child(outerWhile, 0); + cond->type = SLANG_OPER_LOGICALAND; + slang_operation_add_children(cond, 2); + { + slang_operation *notBreak = slang_oper_child(cond, 0); + slang_operation_identifier(notBreak, A, "_notBreakFlag"); + } + { + slang_operation *origCond = slang_oper_child(cond, 1); + slang_operation_copy(origCond, slang_oper_child(oper, 0)); + } + } + + /* inner loop */ + { + slang_operation *innerDo = slang_oper_child(outerWhile, 1); + innerDo->type = SLANG_OPER_DO; + slang_operation_add_children(innerDo, 2); + + /* copy original do-loop body into inner do-loop's body */ + innerBody = slang_oper_child(innerDo, 0); + slang_operation_copy(innerBody, slang_oper_child(oper, 1)); + innerBody->locals->outer_scope = innerDo->locals; + + /* inner do-loop's condition is constant/false */ + { + slang_operation *constFalse = slang_oper_child(innerDo, 1); + slang_operation_literal_bool(constFalse, GL_FALSE); + } + } + } + + /* Finally, in innerBody, + * replace "break" with "_notBreakFlag = 0; break" + * replace "continue" with "break" + */ + replace_break_and_cont(A, innerBody); + + /*slang_print_tree(top, 0);*/ + + return _slang_gen_operation(A, top); + + return NULL; +} + + +/** + * Generate loop code using high-level IR_LOOP instruction + */ +static slang_ir_node * +_slang_gen_while(slang_assemble_ctx * A, slang_operation *oper) +{ + /* + * LOOP: + * BREAK if !expr (child[0]) + * body code (child[1]) + */ + slang_ir_node *loop, *breakIf, *body; + GLboolean isConst, constTrue = GL_FALSE; + + if (!A->EmitContReturn) { + /* We don't want to emit CONT instructions. If this while-loop has + * a continue, translate it away. + */ + if (_slang_loop_contains_continue(slang_oper_child(oper, 1))) { + return _slang_gen_while_without_continue(A, oper); + } + } + + /* type-check expression */ + if (!_slang_is_boolean(A, &oper->children[0])) { + slang_info_log_error(A->log, "scalar/boolean expression expected for 'while'"); + return NULL; + } + + /* Check if loop condition is a constant */ + isConst = _slang_is_constant_cond(&oper->children[0], &constTrue); + + if (isConst && !constTrue) { + /* loop is never executed! */ + return new_node0(IR_NOP); + } + + /* Begin new loop */ + loop = new_loop(NULL); + + /* save loop state */ + push_loop(A, oper, loop); + + if (isConst && constTrue) { + /* while(nonzero constant), no conditional break */ + breakIf = NULL; + } + else { + slang_ir_node *cond + = new_cond(new_not(_slang_gen_operation(A, &oper->children[0]))); + breakIf = new_break_if_true(A, cond); + } + body = _slang_gen_operation(A, &oper->children[1]); + loop->Children[0] = new_seq(breakIf, body); + + /* Do infinite loop detection */ + /* loop->List is head of linked list of break/continue nodes */ + if (!loop->List && isConst && constTrue) { + /* infinite loop detected */ + pop_loop(A); + slang_info_log_error(A->log, "Infinite loop detected!"); + return NULL; + } + + /* restore loop state */ + pop_loop(A); + + return loop; +} + + +/** + * Transform a do-while-loop so that continue statements are converted to breaks. + * Then do normal IR code generation. + * + * Before: + * + * do { + * A; + * if (IFCOND) + * continue; + * B; + * break; + * C; + * } while (LOOPCOND); + * + * After: + * + * { + * bool _notBreakFlag = 1; + * do { + * do { + * A; + * if (IFCOND) { + * break; // was continue + * } + * B; + * _notBreakFlag = 0; // was + * break; // break + * C; + * } while (0) + * } while (_notBreakFlag && LOOPCOND); + * } + */ +static slang_ir_node * +_slang_gen_do_without_continue(slang_assemble_ctx *A, slang_operation *oper) +{ + slang_operation *top; + slang_operation *innerBody; + + assert(oper->type == SLANG_OPER_DO); + + top = slang_operation_new(1); + top->type = SLANG_OPER_BLOCK_NEW_SCOPE; + top->locals->outer_scope = oper->locals->outer_scope; + slang_operation_add_children(top, 2); + + /* declare: bool _notBreakFlag = true */ + { + slang_operation *condDecl = slang_oper_child(top, 0); + slang_generate_declaration(A, top->locals, condDecl, + SLANG_SPEC_BOOL, "_notBreakFlag", GL_TRUE); + } + + /* build outer do-loop: do { ... } while (_notBreakFlag && LOOPCOND) */ + { + slang_operation *outerDo = slang_oper_child(top, 1); + outerDo->type = SLANG_OPER_DO; + slang_operation_add_children(outerDo, 2); + + /* inner do-loop */ + { + slang_operation *innerDo = slang_oper_child(outerDo, 0); + innerDo->type = SLANG_OPER_DO; + slang_operation_add_children(innerDo, 2); + + /* copy original do-loop body into inner do-loop's body */ + innerBody = slang_oper_child(innerDo, 0); + slang_operation_copy(innerBody, slang_oper_child(oper, 0)); + innerBody->locals->outer_scope = innerDo->locals; + + /* inner do-loop's condition is constant/false */ + { + slang_operation *constFalse = slang_oper_child(innerDo, 1); + slang_operation_literal_bool(constFalse, GL_FALSE); + } + } + + /* _notBreakFlag && LOOPCOND */ + { + slang_operation *cond = slang_oper_child(outerDo, 1); + cond->type = SLANG_OPER_LOGICALAND; + slang_operation_add_children(cond, 2); + { + slang_operation *notBreak = slang_oper_child(cond, 0); + slang_operation_identifier(notBreak, A, "_notBreakFlag"); + } + { + slang_operation *origCond = slang_oper_child(cond, 1); + slang_operation_copy(origCond, slang_oper_child(oper, 1)); + } + } + } + + /* Finally, in innerBody, + * replace "break" with "_notBreakFlag = 0; break" + * replace "continue" with "break" + */ + replace_break_and_cont(A, innerBody); + + /*slang_print_tree(top, 0);*/ + + return _slang_gen_operation(A, top); +} + + +/** + * Generate IR tree for a do-while loop using high-level LOOP, IF instructions. + */ +static slang_ir_node * +_slang_gen_do(slang_assemble_ctx * A, slang_operation *oper) +{ + /* + * LOOP: + * body code (child[0]) + * tail code: + * BREAK if !expr (child[1]) + */ + slang_ir_node *loop; + GLboolean isConst, constTrue; + + if (!A->EmitContReturn) { + /* We don't want to emit CONT instructions. If this do-loop has + * a continue, translate it away. + */ + if (_slang_loop_contains_continue(slang_oper_child(oper, 0))) { + return _slang_gen_do_without_continue(A, oper); + } + } + + /* type-check expression */ + if (!_slang_is_boolean(A, &oper->children[1])) { + slang_info_log_error(A->log, "scalar/boolean expression expected for 'do/while'"); + return NULL; + } + + loop = new_loop(NULL); + + /* save loop state */ + push_loop(A, oper, loop); + + /* loop body: */ + loop->Children[0] = _slang_gen_operation(A, &oper->children[0]); + + /* Check if loop condition is a constant */ + isConst = _slang_is_constant_cond(&oper->children[1], &constTrue); + if (isConst && constTrue) { + /* do { } while(1) ==> no conditional break */ + loop->Children[1] = NULL; /* no tail code */ + } + else { + slang_ir_node *cond + = new_cond(new_not(_slang_gen_operation(A, &oper->children[1]))); + loop->Children[1] = new_break_if_true(A, cond); + } + + /* XXX we should do infinite loop detection, as above */ + + /* restore loop state */ + pop_loop(A); + + return loop; +} + + +/** + * Recursively count the number of operations rooted at 'oper'. + * This gives some kind of indication of the size/complexity of an operation. + */ +static GLuint +sizeof_operation(const slang_operation *oper) +{ + if (oper) { + GLuint count = 1; /* me */ + GLuint i; + for (i = 0; i < oper->num_children; i++) { + count += sizeof_operation(&oper->children[i]); + } + return count; + } + else { + return 0; + } +} + + +/** + * Determine if a for-loop can be unrolled. + * At this time, only a rather narrow class of for loops can be unrolled. + * See code for details. + * When a loop can't be unrolled because it's too large we'll emit a + * message to the log. + */ +static GLboolean +_slang_can_unroll_for_loop(slang_assemble_ctx * A, const slang_operation *oper) +{ + GLuint bodySize; + GLint start, end; + const char *varName; + slang_atom varId; + + if (oper->type != SLANG_OPER_FOR) + return GL_FALSE; + + assert(oper->num_children == 4); + + if (_slang_loop_contains_continue_or_break(slang_oper_child_const(oper, 3))) + return GL_FALSE; + + /* children[0] must be either "int i=constant" or "i=constant" */ + if (oper->children[0].type == SLANG_OPER_BLOCK_NO_NEW_SCOPE) { + slang_variable *var; + + if (oper->children[0].children[0].type != SLANG_OPER_VARIABLE_DECL) + return GL_FALSE; + + varId = oper->children[0].children[0].a_id; + + var = _slang_variable_locate(oper->children[0].children[0].locals, + varId, GL_TRUE); + if (!var) + return GL_FALSE; + if (!var->initializer) + return GL_FALSE; + if (var->initializer->type != SLANG_OPER_LITERAL_INT) + return GL_FALSE; + start = (GLint) var->initializer->literal[0]; + } + else if (oper->children[0].type == SLANG_OPER_EXPRESSION) { + if (oper->children[0].children[0].type != SLANG_OPER_ASSIGN) + return GL_FALSE; + if (oper->children[0].children[0].children[0].type != SLANG_OPER_IDENTIFIER) + return GL_FALSE; + if (oper->children[0].children[0].children[1].type != SLANG_OPER_LITERAL_INT) + return GL_FALSE; + + varId = oper->children[0].children[0].children[0].a_id; + + start = (GLint) oper->children[0].children[0].children[1].literal[0]; + } + else { + return GL_FALSE; + } + + /* children[1] must be "i<constant" */ + if (oper->children[1].type != SLANG_OPER_EXPRESSION) + return GL_FALSE; + if (oper->children[1].children[0].type != SLANG_OPER_LESS) + return GL_FALSE; + if (oper->children[1].children[0].children[0].type != SLANG_OPER_IDENTIFIER) + return GL_FALSE; + if (oper->children[1].children[0].children[1].type != SLANG_OPER_LITERAL_INT) + return GL_FALSE; + + end = (GLint) oper->children[1].children[0].children[1].literal[0]; + + /* children[2] must be "i++" or "++i" */ + if (oper->children[2].type != SLANG_OPER_POSTINCREMENT && + oper->children[2].type != SLANG_OPER_PREINCREMENT) + return GL_FALSE; + if (oper->children[2].children[0].type != SLANG_OPER_IDENTIFIER) + return GL_FALSE; + + /* make sure the same variable name is used in all places */ + if ((oper->children[1].children[0].children[0].a_id != varId) || + (oper->children[2].children[0].a_id != varId)) + return GL_FALSE; + + varName = (const char *) varId; + + /* children[3], the loop body, can't be too large */ + bodySize = sizeof_operation(&oper->children[3]); + if (bodySize > MAX_FOR_LOOP_UNROLL_BODY_SIZE) { + slang_info_log_print(A->log, + "Note: 'for (%s ... )' body is too large/complex" + " to unroll", + varName); + return GL_FALSE; + } + + if (start >= end) + return GL_FALSE; /* degenerate case */ + + if (end - start > MAX_FOR_LOOP_UNROLL_ITERATIONS) { + slang_info_log_print(A->log, + "Note: 'for (%s=%d; %s<%d; ++%s)' is too" + " many iterations to unroll", + varName, start, varName, end, varName); + return GL_FALSE; + } + + if ((end - start) * bodySize > MAX_FOR_LOOP_UNROLL_COMPLEXITY) { + slang_info_log_print(A->log, + "Note: 'for (%s=%d; %s<%d; ++%s)' will generate" + " too much code to unroll", + varName, start, varName, end, varName); + return GL_FALSE; + } + + return GL_TRUE; /* we can unroll the loop */ +} + + +/** + * Unroll a for-loop. + * First we determine the number of iterations to unroll. + * Then for each iteration: + * make a copy of the loop body + * replace instances of the loop variable with the current iteration value + * generate IR code for the body + * \return pointer to generated IR code or NULL if error, out of memory, etc. + */ +static slang_ir_node * +_slang_unroll_for_loop(slang_assemble_ctx * A, const slang_operation *oper) +{ + GLint start, end, iter; + slang_ir_node *n, *root = NULL; + slang_atom varId; + + if (oper->children[0].type == SLANG_OPER_BLOCK_NO_NEW_SCOPE) { + /* for (int i=0; ... */ + slang_variable *var; + + varId = oper->children[0].children[0].a_id; + var = _slang_variable_locate(oper->children[0].children[0].locals, + varId, GL_TRUE); + start = (GLint) var->initializer->literal[0]; + } + else { + /* for (i=0; ... */ + varId = oper->children[0].children[0].children[0].a_id; + start = (GLint) oper->children[0].children[0].children[1].literal[0]; + } + + end = (GLint) oper->children[1].children[0].children[1].literal[0]; + + for (iter = start; iter < end; iter++) { + slang_operation *body; + + /* make a copy of the loop body */ + body = slang_operation_new(1); + if (!body) + return NULL; + + if (!slang_operation_copy(body, &oper->children[3])) + return NULL; + + /* in body, replace instances of 'varId' with literal 'iter' */ + { + slang_variable *oldVar; + slang_operation *newOper; + + oldVar = _slang_variable_locate(oper->locals, varId, GL_TRUE); + if (!oldVar) { + /* undeclared loop variable */ + slang_operation_delete(body); + return NULL; + } + + newOper = slang_operation_new(1); + newOper->type = SLANG_OPER_LITERAL_INT; + newOper->literal_size = 1; + newOper->literal[0] = iter; + + /* replace instances of the loop variable with newOper */ + slang_substitute(A, body, 1, &oldVar, &newOper, GL_FALSE); + } + + /* do IR codegen for body */ + n = _slang_gen_operation(A, body); + if (!n) + return NULL; + + root = new_seq(root, n); + + slang_operation_delete(body); + } + + return root; +} + + +/** + * Replace 'continue' statement with 'break' inside a for-loop. + * This is a recursive helper function used by _slang_gen_for_without_continue(). + */ +static void +replace_continue_with_break(slang_assemble_ctx *A, slang_operation *oper) +{ + switch (oper->type) { + case SLANG_OPER_CONTINUE: + oper->type = SLANG_OPER_BREAK; + break; + case SLANG_OPER_FOR: + case SLANG_OPER_DO: + case SLANG_OPER_WHILE: + /* stop upon finding a nested loop */ + break; + default: + /* recurse */ + { + GLuint i; + for (i = 0; i < oper->num_children; i++) { + replace_continue_with_break(A, slang_oper_child(oper, i)); + } + } + } +} + + +/** + * Transform a for-loop so that continue statements are converted to breaks. + * Then do normal IR code generation. + * + * Before: + * + * for (INIT; LOOPCOND; INCR) { + * A; + * if (IFCOND) { + * continue; + * } + * B; + * } + * + * After: + * + * { + * bool _condFlag = 1; + * for (INIT; _condFlag; ) { + * for ( ; _condFlag = LOOPCOND; INCR) { + * A; + * if (IFCOND) { + * break; + * } + * B; + * } + * if (_condFlag) + * INCR; + * } + * } + */ +static slang_ir_node * +_slang_gen_for_without_continue(slang_assemble_ctx *A, slang_operation *oper) +{ + slang_operation *top; + slang_operation *outerFor, *innerFor, *init, *cond, *incr; + slang_operation *lhs, *rhs; + + assert(oper->type == SLANG_OPER_FOR); + + top = slang_operation_new(1); + top->type = SLANG_OPER_BLOCK_NEW_SCOPE; + top->locals->outer_scope = oper->locals->outer_scope; + slang_operation_add_children(top, 2); + + /* declare: bool _condFlag = true */ + { + slang_operation *condDecl = slang_oper_child(top, 0); + slang_generate_declaration(A, top->locals, condDecl, + SLANG_SPEC_BOOL, "_condFlag", GL_TRUE); + } + + /* build outer loop: for (INIT; _condFlag; ) { */ + outerFor = slang_oper_child(top, 1); + outerFor->type = SLANG_OPER_FOR; + slang_operation_add_children(outerFor, 4); + + init = slang_oper_child(outerFor, 0); + slang_operation_copy(init, slang_oper_child(oper, 0)); + + cond = slang_oper_child(outerFor, 1); + cond->type = SLANG_OPER_IDENTIFIER; + cond->a_id = slang_atom_pool_atom(A->atoms, "_condFlag"); + + incr = slang_oper_child(outerFor, 2); + incr->type = SLANG_OPER_VOID; + + /* body of the outer loop */ + { + slang_operation *block = slang_oper_child(outerFor, 3); + + slang_operation_add_children(block, 2); + block->type = SLANG_OPER_BLOCK_NO_NEW_SCOPE; + + /* build inner loop: for ( ; _condFlag = LOOPCOND; INCR) { */ + { + innerFor = slang_oper_child(block, 0); + + /* make copy of orig loop */ + slang_operation_copy(innerFor, oper); + assert(innerFor->type == SLANG_OPER_FOR); + innerFor->locals->outer_scope = block->locals; + + init = slang_oper_child(innerFor, 0); + init->type = SLANG_OPER_VOID; /* leak? */ + + cond = slang_oper_child(innerFor, 1); + slang_operation_destruct(cond); + cond->type = SLANG_OPER_ASSIGN; + cond->locals = _slang_variable_scope_new(innerFor->locals); + slang_operation_add_children(cond, 2); + + lhs = slang_oper_child(cond, 0); + lhs->type = SLANG_OPER_IDENTIFIER; + lhs->a_id = slang_atom_pool_atom(A->atoms, "_condFlag"); + + rhs = slang_oper_child(cond, 1); + slang_operation_copy(rhs, slang_oper_child(oper, 1)); + } + + /* if (_condFlag) INCR; */ + { + slang_operation *ifop = slang_oper_child(block, 1); + ifop->type = SLANG_OPER_IF; + slang_operation_add_children(ifop, 2); + + /* re-use cond node build above */ + slang_operation_copy(slang_oper_child(ifop, 0), cond); + + /* incr node from original for-loop operation */ + slang_operation_copy(slang_oper_child(ifop, 1), + slang_oper_child(oper, 2)); + } + + /* finally, replace "continue" with "break" in the inner for-loop */ + replace_continue_with_break(A, slang_oper_child(innerFor, 3)); + } + + return _slang_gen_operation(A, top); +} + + + +/** + * Generate IR for a for-loop. Unrolling will be done when possible. + */ +static slang_ir_node * +_slang_gen_for(slang_assemble_ctx * A, slang_operation *oper) +{ + GLboolean unroll; + + if (!A->EmitContReturn) { + /* We don't want to emit CONT instructions. If this for-loop has + * a continue, translate it away. + */ + if (_slang_loop_contains_continue(slang_oper_child(oper, 3))) { + return _slang_gen_for_without_continue(A, oper); + } + } + + unroll = _slang_can_unroll_for_loop(A, oper); + if (unroll) { + slang_ir_node *code = _slang_unroll_for_loop(A, oper); + if (code) + return code; + } + + assert(oper->type == SLANG_OPER_FOR); + + /* conventional for-loop code generation */ + { + /* + * init code (child[0]) + * LOOP: + * BREAK if !expr (child[1]) + * body code (child[3]) + * tail code: + * incr code (child[2]) // XXX continue here + */ + slang_ir_node *loop, *cond, *breakIf, *body, *init, *incr; + init = _slang_gen_operation(A, &oper->children[0]); + loop = new_loop(NULL); + + /* save loop state */ + push_loop(A, oper, loop); + + cond = new_cond(new_not(_slang_gen_operation(A, &oper->children[1]))); + breakIf = new_break_if_true(A, cond); + body = _slang_gen_operation(A, &oper->children[3]); + incr = _slang_gen_operation(A, &oper->children[2]); + + loop->Children[0] = new_seq(breakIf, body); + loop->Children[1] = incr; /* tail code */ + + /* restore loop state */ + pop_loop(A); + + return new_seq(init, loop); + } +} + + +static slang_ir_node * +_slang_gen_continue(slang_assemble_ctx * A, const slang_operation *oper) +{ + slang_ir_node *n, *cont, *incr = NULL, *loopNode; + + assert(oper->type == SLANG_OPER_CONTINUE); + loopNode = current_loop_ir(A); + assert(loopNode); + assert(loopNode->Opcode == IR_LOOP); + + cont = new_node0(IR_CONT); + if (cont) { + cont->Parent = loopNode; + /* insert this node at head of linked list of cont/break instructions */ + cont->List = loopNode->List; + loopNode->List = cont; + } + + n = new_seq(incr, cont); + return n; +} + + +/** + * Determine if the given operation is of a specific type. + */ +static GLboolean +is_operation_type(const slang_operation *oper, slang_operation_type type) +{ + if (oper->type == type) + return GL_TRUE; + else if ((oper->type == SLANG_OPER_BLOCK_NEW_SCOPE || + oper->type == SLANG_OPER_BLOCK_NO_NEW_SCOPE) && + oper->num_children == 1) + return is_operation_type(&oper->children[0], type); + else + return GL_FALSE; +} + + +/** + * Generate IR tree for an if/then/else conditional using high-level + * IR_IF instruction. + */ +static slang_ir_node * +_slang_gen_if(slang_assemble_ctx * A, const slang_operation *oper) +{ + /* + * eval expr (child[0]) + * IF expr THEN + * if-body code + * ELSE + * else-body code + * ENDIF + */ + const GLboolean haveElseClause = !_slang_is_noop(&oper->children[2]); + slang_ir_node *ifNode, *cond, *ifBody, *elseBody; + GLboolean isConst, constTrue; + + /* type-check expression */ + if (!_slang_is_boolean(A, &oper->children[0])) { + slang_info_log_error(A->log, "boolean expression expected for 'if'"); + return NULL; + } + + if (!_slang_is_scalar_or_boolean(A, &oper->children[0])) { + slang_info_log_error(A->log, "scalar/boolean expression expected for 'if'"); + return NULL; + } + + isConst = _slang_is_constant_cond(&oper->children[0], &constTrue); + if (isConst) { + if (constTrue) { + /* if (true) ... */ + return _slang_gen_operation(A, &oper->children[1]); + } + else { + /* if (false) ... */ + return _slang_gen_operation(A, &oper->children[2]); + } + } + + cond = _slang_gen_operation(A, &oper->children[0]); + cond = new_cond(cond); + + if (is_operation_type(&oper->children[1], SLANG_OPER_BREAK) + && !haveElseClause) { + /* Special case: generate a conditional break */ + ifBody = new_break_if_true(A, cond); + return ifBody; + } + else if (is_operation_type(&oper->children[1], SLANG_OPER_CONTINUE) + && !haveElseClause + && current_loop_oper(A) + && current_loop_oper(A)->type != SLANG_OPER_FOR) { + /* Special case: generate a conditional continue */ + ifBody = new_cont_if_true(A, cond); + return ifBody; + } + else { + /* general case */ + ifBody = _slang_gen_operation(A, &oper->children[1]); + if (haveElseClause) + elseBody = _slang_gen_operation(A, &oper->children[2]); + else + elseBody = NULL; + ifNode = new_if(cond, ifBody, elseBody); + return ifNode; + } +} + + + +static slang_ir_node * +_slang_gen_not(slang_assemble_ctx * A, const slang_operation *oper) +{ + slang_ir_node *n; + + assert(oper->type == SLANG_OPER_NOT); + + /* type-check expression */ + if (!_slang_is_scalar_or_boolean(A, &oper->children[0])) { + slang_info_log_error(A->log, + "scalar/boolean expression expected for '!'"); + return NULL; + } + + n = _slang_gen_operation(A, &oper->children[0]); + if (n) + return new_not(n); + else + return NULL; +} + + +static slang_ir_node * +_slang_gen_xor(slang_assemble_ctx * A, const slang_operation *oper) +{ + slang_ir_node *n1, *n2; + + assert(oper->type == SLANG_OPER_LOGICALXOR); + + if (!_slang_is_scalar_or_boolean(A, &oper->children[0]) || + !_slang_is_scalar_or_boolean(A, &oper->children[0])) { + slang_info_log_error(A->log, + "scalar/boolean expressions expected for '^^'"); + return NULL; + } + + n1 = _slang_gen_operation(A, &oper->children[0]); + if (!n1) + return NULL; + n2 = _slang_gen_operation(A, &oper->children[1]); + if (!n2) + return NULL; + return new_node2(IR_NOTEQUAL, n1, n2); +} + + +/** + * Generate IR node for storage of a temporary of given size. + */ +static slang_ir_node * +_slang_gen_temporary(GLint size) +{ + slang_ir_storage *store; + slang_ir_node *n = NULL; + + store = _slang_new_ir_storage(PROGRAM_TEMPORARY, -2, size); + if (store) { + n = new_node0(IR_VAR_DECL); + if (n) { + n->Store = store; + } + else { + _slang_free(store); + } + } + return n; +} + + +/** + * Generate program constants for an array. + * Ex: const vec2[3] v = vec2[3](vec2(1,1), vec2(2,2), vec2(3,3)); + * This will allocate and initialize three vector constants, storing + * the array in constant memory, not temporaries like a non-const array. + * This can also be used for uniform array initializers. + * \return GL_TRUE for success, GL_FALSE if failure (semantic error, etc). + */ +static GLboolean +make_constant_array(slang_assemble_ctx *A, + slang_variable *var, + slang_operation *initializer) +{ + struct gl_program *prog = A->program; + const GLenum datatype = _slang_gltype_from_specifier(&var->type.specifier); + const char *varName = (char *) var->a_name; + const GLuint numElements = initializer->num_children; + GLint size; + GLuint i, j; + GLfloat *values; + + if (!var->store) { + var->store = _slang_new_ir_storage(PROGRAM_UNDEFINED, -6, -6); + } + size = var->store->Size; + + assert(var->type.qualifier == SLANG_QUAL_CONST || + var->type.qualifier == SLANG_QUAL_UNIFORM); + assert(initializer->type == SLANG_OPER_CALL); + assert(initializer->array_constructor); + + values = (GLfloat *) _mesa_malloc(numElements * 4 * sizeof(GLfloat)); + + /* convert constructor params into ordinary floats */ + for (i = 0; i < numElements; i++) { + const slang_operation *op = &initializer->children[i]; + if (op->type != SLANG_OPER_LITERAL_FLOAT) { + /* unsupported type for this optimization */ + free(values); + return GL_FALSE; + } + for (j = 0; j < op->literal_size; j++) { + values[i * 4 + j] = op->literal[j]; + } + for ( ; j < 4; j++) { + values[i * 4 + j] = 0.0f; + } + } + + /* slightly different paths for constants vs. uniforms */ + if (var->type.qualifier == SLANG_QUAL_UNIFORM) { + var->store->File = PROGRAM_UNIFORM; + var->store->Index = _mesa_add_uniform(prog->Parameters, varName, + size, datatype, values); + } + else { + var->store->File = PROGRAM_CONSTANT; + var->store->Index = _mesa_add_named_constant(prog->Parameters, varName, + values, size); + } + assert(var->store->Size == size); + + _mesa_free(values); + + return GL_TRUE; +} + + + +/** + * Generate IR node for allocating/declaring a variable (either a local or + * a global). + * Generally, this involves allocating an slang_ir_storage instance for the + * variable, choosing a register file (temporary, constant, etc). + * For ordinary variables we do not yet allocate storage though. We do that + * when we find the first actual use of the variable to avoid allocating temp + * regs that will never get used. + * At this time, uniforms are always allocated space in this function. + * + * \param initializer Optional initializer expression for the variable. + */ +static slang_ir_node * +_slang_gen_var_decl(slang_assemble_ctx *A, slang_variable *var, + slang_operation *initializer) +{ + const char *varName = (const char *) var->a_name; + const GLenum datatype = _slang_gltype_from_specifier(&var->type.specifier); + slang_ir_node *varDecl, *n; + slang_ir_storage *store; + GLint arrayLen, size, totalSize; /* if array then totalSize > size */ + gl_register_file file; + + /*assert(!var->declared);*/ + var->declared = GL_TRUE; + + /* determine GPU register file for simple cases */ + if (is_sampler_type(&var->type)) { + file = PROGRAM_SAMPLER; + } + else if (var->type.qualifier == SLANG_QUAL_UNIFORM) { + file = PROGRAM_UNIFORM; + } + else { + file = PROGRAM_TEMPORARY; + } + + size = _slang_sizeof_type_specifier(&var->type.specifier); + if (size <= 0) { + slang_info_log_error(A->log, "invalid declaration for '%s'", varName); + return NULL; + } + + arrayLen = _slang_array_length(var); + totalSize = _slang_array_size(size, arrayLen); + + /* Allocate IR node for the declaration */ + varDecl = new_node0(IR_VAR_DECL); + if (!varDecl) + return NULL; + + /* Allocate slang_ir_storage for this variable if needed. + * Note that we may not actually allocate a constant or temporary register + * until later. + */ + if (!var->store) { + GLint index = -7; /* TBD / unknown */ + var->store = _slang_new_ir_storage(file, index, totalSize); + if (!var->store) + return NULL; /* out of memory */ + } + + /* set the IR node's Var and Store pointers */ + varDecl->Var = var; + varDecl->Store = var->store; + + + store = var->store; + + /* if there's an initializer, generate IR for the expression */ + if (initializer) { + slang_ir_node *varRef, *init; + + if (var->type.qualifier == SLANG_QUAL_CONST) { + /* if the variable is const, the initializer must be a const + * expression as well. + */ +#if 0 + if (!_slang_is_constant_expr(initializer)) { + slang_info_log_error(A->log, + "initializer for %s not constant", varName); + return NULL; + } +#endif + } + + /* IR for the variable we're initializing */ + varRef = new_var(A, var); + if (!varRef) { + slang_info_log_error(A->log, "out of memory"); + return NULL; + } + + /* constant-folding, etc here */ + _slang_simplify(initializer, &A->space, A->atoms); + + /* look for simple constant-valued variables and uniforms */ + if (var->type.qualifier == SLANG_QUAL_CONST || + var->type.qualifier == SLANG_QUAL_UNIFORM) { + + if (initializer->type == SLANG_OPER_CALL && + initializer->array_constructor) { + /* array initializer */ + if (make_constant_array(A, var, initializer)) + return varRef; + } + else if (initializer->type == SLANG_OPER_LITERAL_FLOAT || + initializer->type == SLANG_OPER_LITERAL_INT) { + /* simple float/vector initializer */ + if (store->File == PROGRAM_UNIFORM) { + store->Index = _mesa_add_uniform(A->program->Parameters, + varName, + totalSize, datatype, + initializer->literal); + store->Swizzle = _slang_var_swizzle(size, 0); + return varRef; + } +#if 0 + else { + store->File = PROGRAM_CONSTANT; + store->Index = _mesa_add_named_constant(A->program->Parameters, + varName, + initializer->literal, + totalSize); + store->Swizzle = _slang_var_swizzle(size, 0); + return varRef; + } +#endif + } + } + + /* IR for initializer */ + init = _slang_gen_operation(A, initializer); + if (!init) + return NULL; + + /* XXX remove this when type checking is added above */ + if (init->Store && init->Store->Size != totalSize) { + slang_info_log_error(A->log, "invalid assignment (wrong types)"); + return NULL; + } + + /* assign RHS to LHS */ + n = new_node2(IR_COPY, varRef, init); + n = new_seq(varDecl, n); + } + else { + /* no initializer */ + n = varDecl; + } + + if (store->File == PROGRAM_UNIFORM && store->Index < 0) { + /* always need to allocate storage for uniforms at this point */ + store->Index = _mesa_add_uniform(A->program->Parameters, varName, + totalSize, datatype, NULL); + store->Swizzle = _slang_var_swizzle(size, 0); + } + +#if 0 + printf("%s var %p %s store=%p index=%d size=%d\n", + __FUNCTION__, (void *) var, (char *) varName, + (void *) store, store->Index, store->Size); +#endif + + return n; +} + + +/** + * Generate code for a selection expression: b ? x : y + * XXX In some cases we could implement a selection expression + * with an LRP instruction (use the boolean as the interpolant). + * Otherwise, we use an IF/ELSE/ENDIF construct. + */ +static slang_ir_node * +_slang_gen_select(slang_assemble_ctx *A, slang_operation *oper) +{ + slang_ir_node *cond, *ifNode, *trueExpr, *falseExpr, *trueNode, *falseNode; + slang_ir_node *tmpDecl, *tmpVar, *tree; + slang_typeinfo type0, type1, type2; + int size, isBool, isEqual; + + assert(oper->type == SLANG_OPER_SELECT); + assert(oper->num_children == 3); + + /* type of children[0] must be boolean */ + slang_typeinfo_construct(&type0); + typeof_operation(A, &oper->children[0], &type0); + isBool = (type0.spec.type == SLANG_SPEC_BOOL); + slang_typeinfo_destruct(&type0); + if (!isBool) { + slang_info_log_error(A->log, "selector type is not boolean"); + return NULL; + } + + slang_typeinfo_construct(&type1); + slang_typeinfo_construct(&type2); + typeof_operation(A, &oper->children[1], &type1); + typeof_operation(A, &oper->children[2], &type2); + isEqual = slang_type_specifier_equal(&type1.spec, &type2.spec); + slang_typeinfo_destruct(&type1); + slang_typeinfo_destruct(&type2); + if (!isEqual) { + slang_info_log_error(A->log, "incompatible types for ?: operator"); + return NULL; + } + + /* size of x or y's type */ + size = _slang_sizeof_type_specifier(&type1.spec); + assert(size > 0); + + /* temporary var */ + tmpDecl = _slang_gen_temporary(size); + + /* the condition (child 0) */ + cond = _slang_gen_operation(A, &oper->children[0]); + cond = new_cond(cond); + + /* if-true body (child 1) */ + tmpVar = new_node0(IR_VAR); + tmpVar->Store = tmpDecl->Store; + trueExpr = _slang_gen_operation(A, &oper->children[1]); + trueNode = new_node2(IR_COPY, tmpVar, trueExpr); + + /* if-false body (child 2) */ + tmpVar = new_node0(IR_VAR); + tmpVar->Store = tmpDecl->Store; + falseExpr = _slang_gen_operation(A, &oper->children[2]); + falseNode = new_node2(IR_COPY, tmpVar, falseExpr); + + ifNode = new_if(cond, trueNode, falseNode); + + /* tmp var value */ + tmpVar = new_node0(IR_VAR); + tmpVar->Store = tmpDecl->Store; + + tree = new_seq(ifNode, tmpVar); + tree = new_seq(tmpDecl, tree); + + /*_slang_print_ir_tree(tree, 10);*/ + return tree; +} + + +/** + * Generate code for &&. + */ +static slang_ir_node * +_slang_gen_logical_and(slang_assemble_ctx *A, slang_operation *oper) +{ + /* rewrite "a && b" as "a ? b : false" */ + slang_operation *select; + slang_ir_node *n; + + select = slang_operation_new(1); + select->type = SLANG_OPER_SELECT; + slang_operation_add_children(select, 3); + + slang_operation_copy(slang_oper_child(select, 0), &oper->children[0]); + slang_operation_copy(slang_oper_child(select, 1), &oper->children[1]); + slang_operation_literal_bool(slang_oper_child(select, 2), GL_FALSE); + + n = _slang_gen_select(A, select); + return n; +} + + +/** + * Generate code for ||. + */ +static slang_ir_node * +_slang_gen_logical_or(slang_assemble_ctx *A, slang_operation *oper) +{ + /* rewrite "a || b" as "a ? true : b" */ + slang_operation *select; + slang_ir_node *n; + + select = slang_operation_new(1); + select->type = SLANG_OPER_SELECT; + slang_operation_add_children(select, 3); + + slang_operation_copy(slang_oper_child(select, 0), &oper->children[0]); + slang_operation_literal_bool(slang_oper_child(select, 1), GL_TRUE); + slang_operation_copy(slang_oper_child(select, 2), &oper->children[1]); + + n = _slang_gen_select(A, select); + return n; +} + + +/** + * Generate IR tree for a return statement. + */ +static slang_ir_node * +_slang_gen_return(slang_assemble_ctx * A, slang_operation *oper) +{ + assert(oper->type == SLANG_OPER_RETURN); + return new_return(A->curFuncEndLabel); +} + + +#if 0 +/** + * Determine if the given operation/expression is const-valued. + */ +static GLboolean +_slang_is_constant_expr(const slang_operation *oper) +{ + slang_variable *var; + GLuint i; + + switch (oper->type) { + case SLANG_OPER_IDENTIFIER: + var = _slang_variable_locate(oper->locals, oper->a_id, GL_TRUE); + if (var && var->type.qualifier == SLANG_QUAL_CONST) + return GL_TRUE; + return GL_FALSE; + default: + for (i = 0; i < oper->num_children; i++) { + if (!_slang_is_constant_expr(&oper->children[i])) + return GL_FALSE; + } + return GL_TRUE; + } +} +#endif + + +/** + * Check if an assignment of type t1 to t0 is legal. + * XXX more cases needed. + */ +static GLboolean +_slang_assignment_compatible(slang_assemble_ctx *A, + slang_operation *op0, + slang_operation *op1) +{ + slang_typeinfo t0, t1; + GLuint sz0, sz1; + + if (op0->type == SLANG_OPER_POSTINCREMENT || + op0->type == SLANG_OPER_POSTDECREMENT) { + return GL_FALSE; + } + + slang_typeinfo_construct(&t0); + typeof_operation(A, op0, &t0); + + slang_typeinfo_construct(&t1); + typeof_operation(A, op1, &t1); + + sz0 = _slang_sizeof_type_specifier(&t0.spec); + sz1 = _slang_sizeof_type_specifier(&t1.spec); + +#if 1 + if (sz0 != sz1) { + /*printf("assignment size mismatch %u vs %u\n", sz0, sz1);*/ + return GL_FALSE; + } +#endif + + if (t0.spec.type == SLANG_SPEC_STRUCT && + t1.spec.type == SLANG_SPEC_STRUCT && + t0.spec._struct->a_name != t1.spec._struct->a_name) + return GL_FALSE; + + if (t0.spec.type == SLANG_SPEC_FLOAT && + t1.spec.type == SLANG_SPEC_BOOL) + return GL_FALSE; + +#if 0 /* not used just yet - causes problems elsewhere */ + if (t0.spec.type == SLANG_SPEC_INT && + t1.spec.type == SLANG_SPEC_FLOAT) + return GL_FALSE; +#endif + + if (t0.spec.type == SLANG_SPEC_BOOL && + t1.spec.type == SLANG_SPEC_FLOAT) + return GL_FALSE; + + if (t0.spec.type == SLANG_SPEC_BOOL && + t1.spec.type == SLANG_SPEC_INT) + return GL_FALSE; + + return GL_TRUE; +} + + +/** + * Generate IR tree for a local variable declaration. + * Basically do some error checking and call _slang_gen_var_decl(). + */ +static slang_ir_node * +_slang_gen_declaration(slang_assemble_ctx *A, slang_operation *oper) +{ + const char *varName = (char *) oper->a_id; + slang_variable *var; + slang_ir_node *varDecl; + slang_operation *initializer; + + assert(oper->type == SLANG_OPER_VARIABLE_DECL); + assert(oper->num_children <= 1); + + + /* lookup the variable by name */ + var = _slang_variable_locate(oper->locals, oper->a_id, GL_TRUE); + if (!var) + return NULL; /* "shouldn't happen" */ + + if (var->type.qualifier == SLANG_QUAL_ATTRIBUTE || + var->type.qualifier == SLANG_QUAL_VARYING || + var->type.qualifier == SLANG_QUAL_UNIFORM) { + /* can't declare attribute/uniform vars inside functions */ + slang_info_log_error(A->log, + "local variable '%s' cannot be an attribute/uniform/varying", + varName); + return NULL; + } + +#if 0 + if (v->declared) { + slang_info_log_error(A->log, "variable '%s' redeclared", varName); + return NULL; + } +#endif + + /* check if the var has an initializer */ + if (oper->num_children > 0) { + assert(oper->num_children == 1); + initializer = &oper->children[0]; + } + else if (var->initializer) { + initializer = var->initializer; + } + else { + initializer = NULL; + } + + if (initializer) { + /* check/compare var type and initializer type */ + if (!_slang_assignment_compatible(A, oper, initializer)) { + slang_info_log_error(A->log, "incompatible types in assignment"); + return NULL; + } + } + else { + if (var->type.qualifier == SLANG_QUAL_CONST) { + slang_info_log_error(A->log, + "const-qualified variable '%s' requires initializer", + varName); + return NULL; + } + } + + /* Generate IR node */ + varDecl = _slang_gen_var_decl(A, var, initializer); + if (!varDecl) + return NULL; + + return varDecl; +} + + +/** + * Generate IR tree for a reference to a variable (such as in an expression). + * This is different from a variable declaration. + */ +static slang_ir_node * +_slang_gen_variable(slang_assemble_ctx * A, slang_operation *oper) +{ + /* If there's a variable associated with this oper (from inlining) + * use it. Otherwise, use the oper's var id. + */ + slang_atom name = oper->var ? oper->var->a_name : oper->a_id; + slang_variable *var = _slang_variable_locate(oper->locals, name, GL_TRUE); + slang_ir_node *n; + if (!var) { + slang_info_log_error(A->log, "undefined variable '%s'", (char *) name); + return NULL; + } + assert(var->declared); + n = new_var(A, var); + return n; +} + + + +/** + * Return the number of components actually named by the swizzle. + * Recall that swizzles may have undefined/don't-care values. + */ +static GLuint +swizzle_size(GLuint swizzle) +{ + GLuint size = 0, i; + for (i = 0; i < 4; i++) { + GLuint swz = GET_SWZ(swizzle, i); + size += (swz >= 0 && swz <= 3); + } + return size; +} + + +static slang_ir_node * +_slang_gen_swizzle(slang_ir_node *child, GLuint swizzle) +{ + slang_ir_node *n = new_node1(IR_SWIZZLE, child); + assert(child); + if (n) { + assert(!n->Store); + n->Store = _slang_new_ir_storage_relative(0, + swizzle_size(swizzle), + child->Store); + n->Store->Swizzle = swizzle; + } + return n; +} + + +static GLboolean +is_store_writable(const slang_assemble_ctx *A, const slang_ir_storage *store) +{ + while (store->Parent) + store = store->Parent; + + if (!(store->File == PROGRAM_OUTPUT || + store->File == PROGRAM_TEMPORARY || + (store->File == PROGRAM_VARYING && + A->program->Target == GL_VERTEX_PROGRAM_ARB))) { + return GL_FALSE; + } + else { + return GL_TRUE; + } +} + + +/** + * Walk up an IR storage path to compute the final swizzle. + * This is used when we find an expression such as "foo.xz.yx". + */ +static GLuint +root_swizzle(const slang_ir_storage *st) +{ + GLuint swizzle = st->Swizzle; + while (st->Parent) { + st = st->Parent; + swizzle = _slang_swizzle_swizzle(st->Swizzle, swizzle); + } + return swizzle; +} + + +/** + * Generate IR tree for an assignment (=). + */ +static slang_ir_node * +_slang_gen_assignment(slang_assemble_ctx * A, slang_operation *oper) +{ + slang_operation *pred = NULL; + slang_ir_node *n = NULL; + + if (oper->children[0].type == SLANG_OPER_IDENTIFIER) { + /* Check that var is writeable */ + slang_variable *var + = _slang_variable_locate(oper->children[0].locals, + oper->children[0].a_id, GL_TRUE); + if (!var) { + slang_info_log_error(A->log, "undefined variable '%s'", + (char *) oper->children[0].a_id); + return NULL; + } + if (var->type.qualifier == SLANG_QUAL_CONST || + var->type.qualifier == SLANG_QUAL_ATTRIBUTE || + var->type.qualifier == SLANG_QUAL_UNIFORM || + (var->type.qualifier == SLANG_QUAL_VARYING && + A->program->Target == GL_FRAGMENT_PROGRAM_ARB)) { + slang_info_log_error(A->log, + "illegal assignment to read-only variable '%s'", + (char *) oper->children[0].a_id); + return NULL; + } + + /* check if we need to predicate this assignment based on __notRetFlag */ + if ((var->is_global || + var->type.qualifier == SLANG_QUAL_OUT || + var->type.qualifier == SLANG_QUAL_INOUT) && A->UseReturnFlag) { + /* create predicate, used below */ + pred = slang_operation_new(1); + pred->type = SLANG_OPER_IDENTIFIER; + pred->a_id = slang_atom_pool_atom(A->atoms, "__notRetFlag"); + pred->locals->outer_scope = oper->locals->outer_scope; + } + } + + if (oper->children[0].type == SLANG_OPER_IDENTIFIER && + oper->children[1].type == SLANG_OPER_CALL) { + /* Special case of: x = f(a, b) + * Replace with f(a, b, x) (where x == hidden __retVal out param) + * + * XXX this could be even more effective if we could accomodate + * cases such as "v.x = f();" - would help with typical vertex + * transformation. + */ + n = _slang_gen_function_call_name(A, + (const char *) oper->children[1].a_id, + &oper->children[1], &oper->children[0]); + } + else { + slang_ir_node *lhs, *rhs; + + /* lhs and rhs type checking */ + if (!_slang_assignment_compatible(A, + &oper->children[0], + &oper->children[1])) { + slang_info_log_error(A->log, "incompatible types in assignment"); + return NULL; + } + + lhs = _slang_gen_operation(A, &oper->children[0]); + if (!lhs) { + return NULL; + } + + if (!lhs->Store) { + slang_info_log_error(A->log, + "invalid left hand side for assignment"); + return NULL; + } + + /* check that lhs is writable */ + if (!is_store_writable(A, lhs->Store)) { + slang_info_log_error(A->log, + "illegal assignment to read-only l-value"); + return NULL; + } + + rhs = _slang_gen_operation(A, &oper->children[1]); + if (lhs && rhs) { + /* convert lhs swizzle into writemask */ + const GLuint swizzle = root_swizzle(lhs->Store); + GLuint writemask, newSwizzle = 0x0; + if (!swizzle_to_writemask(A, swizzle, &writemask, &newSwizzle)) { + /* Non-simple writemask, need to swizzle right hand side in + * order to put components into the right place. + */ + rhs = _slang_gen_swizzle(rhs, newSwizzle); + } + n = new_node2(IR_COPY, lhs, rhs); + } + else { + return NULL; + } + } + + if (n && pred) { + /* predicate the assignment code on __notRetFlag */ + slang_ir_node *top, *cond; + + cond = _slang_gen_operation(A, pred); + top = new_if(cond, n, NULL); + return top; + } + return n; +} + + +/** + * Generate IR tree for referencing a field in a struct (or basic vector type) + */ +static slang_ir_node * +_slang_gen_struct_field(slang_assemble_ctx * A, slang_operation *oper) +{ + slang_typeinfo ti; + + /* type of struct */ + slang_typeinfo_construct(&ti); + typeof_operation(A, &oper->children[0], &ti); + + if (_slang_type_is_vector(ti.spec.type)) { + /* the field should be a swizzle */ + const GLuint rows = _slang_type_dim(ti.spec.type); + slang_swizzle swz; + slang_ir_node *n; + GLuint swizzle; + if (!_slang_is_swizzle((char *) oper->a_id, rows, &swz)) { + slang_info_log_error(A->log, "Bad swizzle"); + return NULL; + } + swizzle = MAKE_SWIZZLE4(swz.swizzle[0], + swz.swizzle[1], + swz.swizzle[2], + swz.swizzle[3]); + + n = _slang_gen_operation(A, &oper->children[0]); + /* create new parent node with swizzle */ + if (n) + n = _slang_gen_swizzle(n, swizzle); + return n; + } + else if ( ti.spec.type == SLANG_SPEC_FLOAT + || ti.spec.type == SLANG_SPEC_INT + || ti.spec.type == SLANG_SPEC_BOOL) { + const GLuint rows = 1; + slang_swizzle swz; + slang_ir_node *n; + GLuint swizzle; + if (!_slang_is_swizzle((char *) oper->a_id, rows, &swz)) { + slang_info_log_error(A->log, "Bad swizzle"); + } + swizzle = MAKE_SWIZZLE4(swz.swizzle[0], + swz.swizzle[1], + swz.swizzle[2], + swz.swizzle[3]); + n = _slang_gen_operation(A, &oper->children[0]); + /* create new parent node with swizzle */ + n = _slang_gen_swizzle(n, swizzle); + return n; + } + else { + /* the field is a structure member (base.field) */ + /* oper->children[0] is the base */ + /* oper->a_id is the field name */ + slang_ir_node *base, *n; + slang_typeinfo field_ti; + GLint fieldSize, fieldOffset = -1; + + /* type of field */ + slang_typeinfo_construct(&field_ti); + typeof_operation(A, oper, &field_ti); + + fieldSize = _slang_sizeof_type_specifier(&field_ti.spec); + if (fieldSize > 0) + fieldOffset = _slang_field_offset(&ti.spec, oper->a_id); + + if (fieldSize == 0 || fieldOffset < 0) { + const char *structName; + if (ti.spec._struct) + structName = (char *) ti.spec._struct->a_name; + else + structName = "unknown"; + slang_info_log_error(A->log, + "\"%s\" is not a member of struct \"%s\"", + (char *) oper->a_id, structName); + return NULL; + } + assert(fieldSize >= 0); + + base = _slang_gen_operation(A, &oper->children[0]); + if (!base) { + /* error msg should have already been logged */ + return NULL; + } + + n = new_node1(IR_FIELD, base); + if (!n) + return NULL; + + n->Field = (char *) oper->a_id; + + /* Store the field's offset in storage->Index */ + n->Store = _slang_new_ir_storage(base->Store->File, + fieldOffset, + fieldSize); + + return n; + } +} + + +/** + * Gen code for array indexing. + */ +static slang_ir_node * +_slang_gen_array_element(slang_assemble_ctx * A, slang_operation *oper) +{ + slang_typeinfo array_ti; + + /* get array's type info */ + slang_typeinfo_construct(&array_ti); + typeof_operation(A, &oper->children[0], &array_ti); + + if (_slang_type_is_vector(array_ti.spec.type)) { + /* indexing a simple vector type: "vec4 v; v[0]=p;" */ + /* translate the index into a swizzle/writemask: "v.x=p" */ + const GLuint max = _slang_type_dim(array_ti.spec.type); + GLint index; + slang_ir_node *n; + + index = (GLint) oper->children[1].literal[0]; + if (oper->children[1].type != SLANG_OPER_LITERAL_INT || + index >= (GLint) max) { +#if 0 + slang_info_log_error(A->log, "Invalid array index for vector type"); + printf("type = %d\n", oper->children[1].type); + printf("index = %d, max = %d\n", index, max); + printf("array = %s\n", (char*)oper->children[0].a_id); + printf("index = %s\n", (char*)oper->children[1].a_id); + return NULL; +#else + index = 0; +#endif + } + + n = _slang_gen_operation(A, &oper->children[0]); + if (n) { + /* use swizzle to access the element */ + GLuint swizzle = MAKE_SWIZZLE4(SWIZZLE_X + index, + SWIZZLE_NIL, + SWIZZLE_NIL, + SWIZZLE_NIL); + n = _slang_gen_swizzle(n, swizzle); + } + assert(n->Store); + return n; + } + else { + /* conventional array */ + slang_typeinfo elem_ti; + slang_ir_node *elem, *array, *index; + GLint elemSize, arrayLen; + + /* size of array element */ + slang_typeinfo_construct(&elem_ti); + typeof_operation(A, oper, &elem_ti); + elemSize = _slang_sizeof_type_specifier(&elem_ti.spec); + + if (_slang_type_is_matrix(array_ti.spec.type)) + arrayLen = _slang_type_dim(array_ti.spec.type); + else + arrayLen = array_ti.array_len; + + slang_typeinfo_destruct(&array_ti); + slang_typeinfo_destruct(&elem_ti); + + if (elemSize <= 0) { + /* unknown var or type */ + slang_info_log_error(A->log, "Undefined variable or type"); + return NULL; + } + + array = _slang_gen_operation(A, &oper->children[0]); + index = _slang_gen_operation(A, &oper->children[1]); + if (array && index) { + /* bounds check */ + GLint constIndex = -1; + if (index->Opcode == IR_FLOAT) { + constIndex = (int) index->Value[0]; + if (constIndex < 0 || constIndex >= arrayLen) { + slang_info_log_error(A->log, + "Array index out of bounds (index=%d size=%d)", + constIndex, arrayLen); + _slang_free_ir_tree(array); + _slang_free_ir_tree(index); + return NULL; + } + } + + if (!array->Store) { + slang_info_log_error(A->log, "Invalid array"); + return NULL; + } + + elem = new_node2(IR_ELEMENT, array, index); + + /* The storage info here will be updated during code emit */ + elem->Store = _slang_new_ir_storage(array->Store->File, + array->Store->Index, + elemSize); + elem->Store->Swizzle = _slang_var_swizzle(elemSize, 0); + return elem; + } + else { + _slang_free_ir_tree(array); + _slang_free_ir_tree(index); + return NULL; + } + } +} + + +static slang_ir_node * +_slang_gen_compare(slang_assemble_ctx *A, slang_operation *oper, + slang_ir_opcode opcode) +{ + slang_typeinfo t0, t1; + slang_ir_node *n; + + slang_typeinfo_construct(&t0); + typeof_operation(A, &oper->children[0], &t0); + + slang_typeinfo_construct(&t1); + typeof_operation(A, &oper->children[0], &t1); + + if (t0.spec.type == SLANG_SPEC_ARRAY || + t1.spec.type == SLANG_SPEC_ARRAY) { + slang_info_log_error(A->log, "Illegal array comparison"); + return NULL; + } + + if (oper->type != SLANG_OPER_EQUAL && + oper->type != SLANG_OPER_NOTEQUAL) { + /* <, <=, >, >= can only be used with scalars */ + if ((t0.spec.type != SLANG_SPEC_INT && + t0.spec.type != SLANG_SPEC_FLOAT) || + (t1.spec.type != SLANG_SPEC_INT && + t1.spec.type != SLANG_SPEC_FLOAT)) { + slang_info_log_error(A->log, "Incompatible type(s) for inequality operator"); + return NULL; + } + } + + n = new_node2(opcode, + _slang_gen_operation(A, &oper->children[0]), + _slang_gen_operation(A, &oper->children[1])); + + /* result is a bool (size 1) */ + n->Store = _slang_new_ir_storage(PROGRAM_TEMPORARY, -1, 1); + + return n; +} + + +#if 0 +static void +print_vars(slang_variable_scope *s) +{ + int i; + printf("vars: "); + for (i = 0; i < s->num_variables; i++) { + printf("%s %d, \n", + (char*) s->variables[i]->a_name, + s->variables[i]->declared); + } + + printf("\n"); +} +#endif + + +#if 0 +static void +_slang_undeclare_vars(slang_variable_scope *locals) +{ + if (locals->num_variables > 0) { + int i; + for (i = 0; i < locals->num_variables; i++) { + slang_variable *v = locals->variables[i]; + printf("undeclare %s at %p\n", (char*) v->a_name, v); + v->declared = GL_FALSE; + } + } +} +#endif + + +/** + * Generate IR tree for a slang_operation (AST node) + */ +static slang_ir_node * +_slang_gen_operation(slang_assemble_ctx * A, slang_operation *oper) +{ + switch (oper->type) { + case SLANG_OPER_BLOCK_NEW_SCOPE: + { + slang_ir_node *n; + + _slang_push_var_table(A->vartable); + + oper->type = SLANG_OPER_BLOCK_NO_NEW_SCOPE; /* temp change */ + n = _slang_gen_operation(A, oper); + oper->type = SLANG_OPER_BLOCK_NEW_SCOPE; /* restore */ + + _slang_pop_var_table(A->vartable); + + /*_slang_undeclare_vars(oper->locals);*/ + /*print_vars(oper->locals);*/ + + if (n) + n = new_node1(IR_SCOPE, n); + return n; + } + break; + + case SLANG_OPER_BLOCK_NO_NEW_SCOPE: + /* list of operations */ + if (oper->num_children > 0) + { + slang_ir_node *n, *tree = NULL; + GLuint i; + + for (i = 0; i < oper->num_children; i++) { + n = _slang_gen_operation(A, &oper->children[i]); + if (!n) { + _slang_free_ir_tree(tree); + return NULL; /* error must have occured */ + } + tree = new_seq(tree, n); + } + + return tree; + } + else { + return new_node0(IR_NOP); + } + + case SLANG_OPER_EXPRESSION: + return _slang_gen_operation(A, &oper->children[0]); + + case SLANG_OPER_FOR: + return _slang_gen_for(A, oper); + case SLANG_OPER_DO: + return _slang_gen_do(A, oper); + case SLANG_OPER_WHILE: + return _slang_gen_while(A, oper); + case SLANG_OPER_BREAK: + if (!current_loop_oper(A)) { + slang_info_log_error(A->log, "'break' not in loop"); + return NULL; + } + return new_break(current_loop_ir(A)); + case SLANG_OPER_CONTINUE: + if (!current_loop_oper(A)) { + slang_info_log_error(A->log, "'continue' not in loop"); + return NULL; + } + return _slang_gen_continue(A, oper); + case SLANG_OPER_DISCARD: + return new_node0(IR_KILL); + + case SLANG_OPER_EQUAL: + return _slang_gen_compare(A, oper, IR_EQUAL); + case SLANG_OPER_NOTEQUAL: + return _slang_gen_compare(A, oper, IR_NOTEQUAL); + case SLANG_OPER_GREATER: + return _slang_gen_compare(A, oper, IR_SGT); + case SLANG_OPER_LESS: + return _slang_gen_compare(A, oper, IR_SLT); + case SLANG_OPER_GREATEREQUAL: + return _slang_gen_compare(A, oper, IR_SGE); + case SLANG_OPER_LESSEQUAL: + return _slang_gen_compare(A, oper, IR_SLE); + case SLANG_OPER_ADD: + { + slang_ir_node *n; + assert(oper->num_children == 2); + n = _slang_gen_function_call_name(A, "+", oper, NULL); + return n; + } + case SLANG_OPER_SUBTRACT: + { + slang_ir_node *n; + assert(oper->num_children == 2); + n = _slang_gen_function_call_name(A, "-", oper, NULL); + return n; + } + case SLANG_OPER_MULTIPLY: + { + slang_ir_node *n; + assert(oper->num_children == 2); + n = _slang_gen_function_call_name(A, "*", oper, NULL); + return n; + } + case SLANG_OPER_DIVIDE: + { + slang_ir_node *n; + assert(oper->num_children == 2); + n = _slang_gen_function_call_name(A, "/", oper, NULL); + return n; + } + case SLANG_OPER_MINUS: + { + slang_ir_node *n; + assert(oper->num_children == 1); + n = _slang_gen_function_call_name(A, "-", oper, NULL); + return n; + } + case SLANG_OPER_PLUS: + /* +expr --> do nothing */ + return _slang_gen_operation(A, &oper->children[0]); + case SLANG_OPER_VARIABLE_DECL: + return _slang_gen_declaration(A, oper); + case SLANG_OPER_ASSIGN: + return _slang_gen_assignment(A, oper); + case SLANG_OPER_ADDASSIGN: + { + slang_ir_node *n; + assert(oper->num_children == 2); + n = _slang_gen_function_call_name(A, "+=", oper, NULL); + return n; + } + case SLANG_OPER_SUBASSIGN: + { + slang_ir_node *n; + assert(oper->num_children == 2); + n = _slang_gen_function_call_name(A, "-=", oper, NULL); + return n; + } + break; + case SLANG_OPER_MULASSIGN: + { + slang_ir_node *n; + assert(oper->num_children == 2); + n = _slang_gen_function_call_name(A, "*=", oper, NULL); + return n; + } + case SLANG_OPER_DIVASSIGN: + { + slang_ir_node *n; + assert(oper->num_children == 2); + n = _slang_gen_function_call_name(A, "/=", oper, NULL); + return n; + } + case SLANG_OPER_LOGICALAND: + { + slang_ir_node *n; + assert(oper->num_children == 2); + n = _slang_gen_logical_and(A, oper); + return n; + } + case SLANG_OPER_LOGICALOR: + { + slang_ir_node *n; + assert(oper->num_children == 2); + n = _slang_gen_logical_or(A, oper); + return n; + } + case SLANG_OPER_LOGICALXOR: + return _slang_gen_xor(A, oper); + case SLANG_OPER_NOT: + return _slang_gen_not(A, oper); + case SLANG_OPER_SELECT: /* b ? x : y */ + { + slang_ir_node *n; + assert(oper->num_children == 3); + n = _slang_gen_select(A, oper); + return n; + } + + case SLANG_OPER_ASM: + return _slang_gen_asm(A, oper, NULL); + case SLANG_OPER_CALL: + return _slang_gen_function_call_name(A, (const char *) oper->a_id, + oper, NULL); + case SLANG_OPER_METHOD: + return _slang_gen_method_call(A, oper); + case SLANG_OPER_RETURN: + return _slang_gen_return(A, oper); + case SLANG_OPER_RETURN_INLINED: + return _slang_gen_return(A, oper); + case SLANG_OPER_LABEL: + return new_label(oper->label); + case SLANG_OPER_IDENTIFIER: + return _slang_gen_variable(A, oper); + case SLANG_OPER_IF: + return _slang_gen_if(A, oper); + case SLANG_OPER_FIELD: + return _slang_gen_struct_field(A, oper); + case SLANG_OPER_SUBSCRIPT: + return _slang_gen_array_element(A, oper); + case SLANG_OPER_LITERAL_FLOAT: + /* fall-through */ + case SLANG_OPER_LITERAL_INT: + /* fall-through */ + case SLANG_OPER_LITERAL_BOOL: + return new_float_literal(oper->literal, oper->literal_size); + + case SLANG_OPER_POSTINCREMENT: /* var++ */ + { + slang_ir_node *n; + assert(oper->num_children == 1); + n = _slang_gen_function_call_name(A, "__postIncr", oper, NULL); + return n; + } + case SLANG_OPER_POSTDECREMENT: /* var-- */ + { + slang_ir_node *n; + assert(oper->num_children == 1); + n = _slang_gen_function_call_name(A, "__postDecr", oper, NULL); + return n; + } + case SLANG_OPER_PREINCREMENT: /* ++var */ + { + slang_ir_node *n; + assert(oper->num_children == 1); + n = _slang_gen_function_call_name(A, "++", oper, NULL); + return n; + } + case SLANG_OPER_PREDECREMENT: /* --var */ + { + slang_ir_node *n; + assert(oper->num_children == 1); + n = _slang_gen_function_call_name(A, "--", oper, NULL); + return n; + } + + case SLANG_OPER_NON_INLINED_CALL: + case SLANG_OPER_SEQUENCE: + { + slang_ir_node *tree = NULL; + GLuint i; + for (i = 0; i < oper->num_children; i++) { + slang_ir_node *n = _slang_gen_operation(A, &oper->children[i]); + tree = new_seq(tree, n); + if (n) + tree->Store = n->Store; + } + if (oper->type == SLANG_OPER_NON_INLINED_CALL) { + tree = new_function_call(tree, oper->label); + } + return tree; + } + + case SLANG_OPER_NONE: + case SLANG_OPER_VOID: + /* returning NULL here would generate an error */ + return new_node0(IR_NOP); + + default: + _mesa_problem(NULL, "bad node type %d in _slang_gen_operation", + oper->type); + return new_node0(IR_NOP); + } + + return NULL; +} + + +/** + * Check if the given type specifier is a rectangular texture sampler. + */ +static GLboolean +is_rect_sampler_spec(const slang_type_specifier *spec) +{ + while (spec->_array) { + spec = spec->_array; + } + return spec->type == SLANG_SPEC_SAMPLER2DRECT || + spec->type == SLANG_SPEC_SAMPLER2DRECTSHADOW; +} + + + +/** + * Called by compiler when a global variable has been parsed/compiled. + * Here we examine the variable's type to determine what kind of register + * storage will be used. + * + * A uniform such as "gl_Position" will become the register specification + * (PROGRAM_OUTPUT, VERT_RESULT_HPOS). Or, uniform "gl_FogFragCoord" + * will be (PROGRAM_INPUT, FRAG_ATTRIB_FOGC). + * + * Samplers are interesting. For "uniform sampler2D tex;" we'll specify + * (PROGRAM_SAMPLER, index) where index is resolved at link-time to an + * actual texture unit (as specified by the user calling glUniform1i()). + */ +GLboolean +_slang_codegen_global_variable(slang_assemble_ctx *A, slang_variable *var, + slang_unit_type type) +{ + struct gl_program *prog = A->program; + const char *varName = (char *) var->a_name; + GLboolean success = GL_TRUE; + slang_ir_storage *store = NULL; + int dbg = 0; + const GLenum datatype = _slang_gltype_from_specifier(&var->type.specifier); + const GLint size = _slang_sizeof_type_specifier(&var->type.specifier); + const GLint arrayLen = _slang_array_length(var); + const GLint totalSize = _slang_array_size(size, arrayLen); + GLint texIndex = sampler_to_texture_index(var->type.specifier.type); + + var->is_global = GL_TRUE; + + /* check for sampler2D arrays */ + if (texIndex == -1 && var->type.specifier._array) + texIndex = sampler_to_texture_index(var->type.specifier._array->type); + + if (texIndex != -1) { + /* This is a texture sampler variable... + * store->File = PROGRAM_SAMPLER + * store->Index = sampler number (0..7, typically) + * store->Size = texture type index (1D, 2D, 3D, cube, etc) + */ + if (var->initializer) { + slang_info_log_error(A->log, "illegal assignment to '%s'", varName); + return GL_FALSE; + } +#if FEATURE_es2_glsl /* XXX should use FEATURE_texture_rect */ + /* disallow rect samplers */ + if (is_rect_sampler_spec(&var->type.specifier)) { + slang_info_log_error(A->log, "invalid sampler type for '%s'", varName); + return GL_FALSE; + } +#else + (void) is_rect_sampler_spec; /* silence warning */ +#endif + { + GLint sampNum = _mesa_add_sampler(prog->Parameters, varName, datatype); + store = _slang_new_ir_storage_sampler(sampNum, texIndex, totalSize); + + /* If we have a sampler array, then we need to allocate the + * additional samplers to ensure we don't allocate them elsewhere. + * We can't directly use _mesa_add_sampler() as that checks the + * varName and gets a match, so we call _mesa_add_parameter() + * directly and use the last sampler number from the call above. + */ + if (arrayLen > 0) { + GLint a = arrayLen - 1; + GLint i; + for (i = 0; i < a; i++) { + GLfloat value = (GLfloat)(i + sampNum + 1); + (void) _mesa_add_parameter(prog->Parameters, PROGRAM_SAMPLER, + varName, 1, datatype, &value, NULL, 0x0); + } + } + } + if (dbg) printf("SAMPLER "); + } + else if (var->type.qualifier == SLANG_QUAL_UNIFORM) { + /* Uniform variable */ + const GLuint swizzle = _slang_var_swizzle(totalSize, 0); + + if (prog) { + /* user-defined uniform */ + if (datatype == GL_NONE) { + if ((var->type.specifier.type == SLANG_SPEC_ARRAY && + var->type.specifier._array->type == SLANG_SPEC_STRUCT) || + (var->type.specifier.type == SLANG_SPEC_STRUCT)) { + /* temporary work-around */ + GLenum datatype = GL_FLOAT; + GLint uniformLoc = _mesa_add_uniform(prog->Parameters, varName, + totalSize, datatype, NULL); + store = _slang_new_ir_storage_swz(PROGRAM_UNIFORM, uniformLoc, + totalSize, swizzle); + + if (arrayLen > 0) { + GLint a = arrayLen - 1; + GLint i; + for (i = 0; i < a; i++) { + GLfloat value = (GLfloat)(i + uniformLoc + 1); + (void) _mesa_add_parameter(prog->Parameters, PROGRAM_UNIFORM, + varName, 1, datatype, &value, NULL, 0x0); + } + } + + /* XXX what we need to do is unroll the struct into its + * basic types, creating a uniform variable for each. + * For example: + * struct foo { + * vec3 a; + * vec4 b; + * }; + * uniform foo f; + * + * Should produce uniforms: + * "f.a" (GL_FLOAT_VEC3) + * "f.b" (GL_FLOAT_VEC4) + */ + + if (var->initializer) { + slang_info_log_error(A->log, + "unsupported initializer for uniform '%s'", varName); + return GL_FALSE; + } + } + else { + slang_info_log_error(A->log, + "invalid datatype for uniform variable %s", + varName); + return GL_FALSE; + } + } + else { + /* non-struct uniform */ + if (!_slang_gen_var_decl(A, var, var->initializer)) + return GL_FALSE; + store = var->store; + } + } + else { + /* pre-defined uniform, like gl_ModelviewMatrix */ + /* We know it's a uniform, but don't allocate storage unless + * it's really used. + */ + store = _slang_new_ir_storage_swz(PROGRAM_STATE_VAR, -1, + totalSize, swizzle); + } + if (dbg) printf("UNIFORM (sz %d) ", totalSize); + } + else if (var->type.qualifier == SLANG_QUAL_VARYING) { + /* varyings must be float, vec or mat */ + if (!_slang_type_is_float_vec_mat(var->type.specifier.type) && + var->type.specifier.type != SLANG_SPEC_ARRAY) { + slang_info_log_error(A->log, + "varying '%s' must be float/vector/matrix", + varName); + return GL_FALSE; + } + + if (var->initializer) { + slang_info_log_error(A->log, "illegal initializer for varying '%s'", + varName); + return GL_FALSE; + } + + if (prog) { + /* user-defined varying */ + GLbitfield flags; + GLint varyingLoc; + GLuint swizzle; + + flags = 0x0; + if (var->type.centroid == SLANG_CENTROID) + flags |= PROG_PARAM_BIT_CENTROID; + if (var->type.variant == SLANG_INVARIANT) + flags |= PROG_PARAM_BIT_INVARIANT; + + varyingLoc = _mesa_add_varying(prog->Varying, varName, + totalSize, flags); + swizzle = _slang_var_swizzle(size, 0); + store = _slang_new_ir_storage_swz(PROGRAM_VARYING, varyingLoc, + totalSize, swizzle); + } + else { + /* pre-defined varying, like gl_Color or gl_TexCoord */ + if (type == SLANG_UNIT_FRAGMENT_BUILTIN) { + /* fragment program input */ + GLuint swizzle; + GLint index = _slang_input_index(varName, GL_FRAGMENT_PROGRAM_ARB, + &swizzle); + assert(index >= 0); + assert(index < FRAG_ATTRIB_MAX); + store = _slang_new_ir_storage_swz(PROGRAM_INPUT, index, + size, swizzle); + } + else { + /* vertex program output */ + GLint index = _slang_output_index(varName, GL_VERTEX_PROGRAM_ARB); + GLuint swizzle = _slang_var_swizzle(size, 0); + assert(index >= 0); + assert(index < VERT_RESULT_MAX); + assert(type == SLANG_UNIT_VERTEX_BUILTIN); + store = _slang_new_ir_storage_swz(PROGRAM_OUTPUT, index, + size, swizzle); + } + if (dbg) printf("V/F "); + } + if (dbg) printf("VARYING "); + } + else if (var->type.qualifier == SLANG_QUAL_ATTRIBUTE) { + GLuint swizzle; + GLint index; + /* attributes must be float, vec or mat */ + if (!_slang_type_is_float_vec_mat(var->type.specifier.type)) { + slang_info_log_error(A->log, + "attribute '%s' must be float/vector/matrix", + varName); + return GL_FALSE; + } + + if (prog) { + /* user-defined vertex attribute */ + const GLint attr = -1; /* unknown */ + swizzle = _slang_var_swizzle(size, 0); + index = _mesa_add_attribute(prog->Attributes, varName, + size, datatype, attr); + assert(index >= 0); + index = VERT_ATTRIB_GENERIC0 + index; + } + else { + /* pre-defined vertex attrib */ + index = _slang_input_index(varName, GL_VERTEX_PROGRAM_ARB, &swizzle); + assert(index >= 0); + } + store = _slang_new_ir_storage_swz(PROGRAM_INPUT, index, size, swizzle); + if (dbg) printf("ATTRIB "); + } + else if (var->type.qualifier == SLANG_QUAL_FIXEDINPUT) { + GLuint swizzle = SWIZZLE_XYZW; /* silence compiler warning */ + GLint index = _slang_input_index(varName, GL_FRAGMENT_PROGRAM_ARB, + &swizzle); + store = _slang_new_ir_storage_swz(PROGRAM_INPUT, index, size, swizzle); + if (dbg) printf("INPUT "); + } + else if (var->type.qualifier == SLANG_QUAL_FIXEDOUTPUT) { + if (type == SLANG_UNIT_VERTEX_BUILTIN) { + GLint index = _slang_output_index(varName, GL_VERTEX_PROGRAM_ARB); + store = _slang_new_ir_storage(PROGRAM_OUTPUT, index, size); + } + else { + GLint index = _slang_output_index(varName, GL_FRAGMENT_PROGRAM_ARB); + GLint specialSize = 4; /* treat all fragment outputs as float[4] */ + assert(type == SLANG_UNIT_FRAGMENT_BUILTIN); + store = _slang_new_ir_storage(PROGRAM_OUTPUT, index, specialSize); + } + if (dbg) printf("OUTPUT "); + } + else if (var->type.qualifier == SLANG_QUAL_CONST && !prog) { + /* pre-defined global constant, like gl_MaxLights */ + store = _slang_new_ir_storage(PROGRAM_CONSTANT, -1, size); + if (dbg) printf("CONST "); + } + else { + /* ordinary variable (may be const) */ + slang_ir_node *n; + + /* IR node to declare the variable */ + n = _slang_gen_var_decl(A, var, var->initializer); + + /* emit GPU instructions */ + success = _slang_emit_code(n, A->vartable, A->program, A->pragmas, GL_FALSE, A->log); + + _slang_free_ir_tree(n); + } + + if (dbg) printf("GLOBAL VAR %s idx %d\n", (char*) var->a_name, + store ? store->Index : -2); + + if (store) + var->store = store; /* save var's storage info */ + + var->declared = GL_TRUE; + + return success; +} + + +/** + * Produce an IR tree from a function AST (fun->body). + * Then call the code emitter to convert the IR tree into gl_program + * instructions. + */ +GLboolean +_slang_codegen_function(slang_assemble_ctx * A, slang_function * fun) +{ + slang_ir_node *n; + GLboolean success = GL_TRUE; + + if (_mesa_strcmp((char *) fun->header.a_name, "main") != 0) { + /* we only really generate code for main, all other functions get + * inlined or codegen'd upon an actual call. + */ +#if 0 + /* do some basic error checking though */ + if (fun->header.type.specifier.type != SLANG_SPEC_VOID) { + /* check that non-void functions actually return something */ + slang_operation *op + = _slang_find_node_type(fun->body, SLANG_OPER_RETURN); + if (!op) { + slang_info_log_error(A->log, + "function \"%s\" has no return statement", + (char *) fun->header.a_name); + printf( + "function \"%s\" has no return statement\n", + (char *) fun->header.a_name); + return GL_FALSE; + } + } +#endif + return GL_TRUE; /* not an error */ + } + +#if 0 + printf("\n*********** codegen_function %s\n", (char *) fun->header.a_name); + slang_print_function(fun, 1); +#endif + + /* should have been allocated earlier: */ + assert(A->program->Parameters ); + assert(A->program->Varying); + assert(A->vartable); + + A->LoopDepth = 0; + A->UseReturnFlag = GL_FALSE; + A->CurFunction = fun; + + /* fold constant expressions, etc. */ + _slang_simplify(fun->body, &A->space, A->atoms); + +#if 0 + printf("\n*********** simplified %s\n", (char *) fun->header.a_name); + slang_print_function(fun, 1); +#endif + + /* Create an end-of-function label */ + A->curFuncEndLabel = _slang_label_new("__endOfFunc__main"); + + /* push new vartable scope */ + _slang_push_var_table(A->vartable); + + /* Generate IR tree for the function body code */ + n = _slang_gen_operation(A, fun->body); + if (n) + n = new_node1(IR_SCOPE, n); + + /* pop vartable, restore previous */ + _slang_pop_var_table(A->vartable); + + if (!n) { + /* XXX record error */ + return GL_FALSE; + } + + /* append an end-of-function-label to IR tree */ + n = new_seq(n, new_label(A->curFuncEndLabel)); + + /*_slang_label_delete(A->curFuncEndLabel);*/ + A->curFuncEndLabel = NULL; + +#if 0 + printf("************* New AST for %s *****\n", (char*)fun->header.a_name); + slang_print_function(fun, 1); +#endif +#if 0 + printf("************* IR for %s *******\n", (char*)fun->header.a_name); + _slang_print_ir_tree(n, 0); +#endif +#if 0 + printf("************* End codegen function ************\n\n"); +#endif + + if (A->UnresolvedRefs) { + /* Can't codegen at this time. + * At link time we'll concatenate all the vertex shaders and/or all + * the fragment shaders and try recompiling. + */ + return GL_TRUE; + } + + /* Emit program instructions */ + success = _slang_emit_code(n, A->vartable, A->program, A->pragmas, GL_TRUE, A->log); + _slang_free_ir_tree(n); + + /* free codegen context */ + /* + _mesa_free(A->codegen); + */ + + return success; +} + diff --git a/mesalib/src/mesa/shader/slang/slang_codegen.h b/mesalib/src/mesa/shader/slang/slang_codegen.h new file mode 100644 index 000000000..ee3be55a4 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_codegen.h @@ -0,0 +1,72 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.3 + * + * Copyright (C) 2005-2007 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +#ifndef SLANG_CODEGEN_H +#define SLANG_CODEGEN_H + + +#include "main/imports.h" +#include "slang_compile.h" + + +#define MAX_LOOP_DEPTH 30 + + +typedef struct slang_assemble_ctx_ +{ + slang_atom_pool *atoms; + slang_name_space space; + struct gl_program *program; + struct gl_sl_pragmas *pragmas; + slang_var_table *vartable; + slang_info_log *log; + + /* current loop stack */ + const slang_operation *LoopOperStack[MAX_LOOP_DEPTH]; + struct slang_ir_node_ *LoopIRStack[MAX_LOOP_DEPTH]; + GLuint LoopDepth; + + /* current function */ + struct slang_function_ *CurFunction; + struct slang_label_ *curFuncEndLabel; + GLboolean UseReturnFlag; + + GLboolean UnresolvedRefs; + GLboolean EmitContReturn; +} slang_assemble_ctx; + + +extern GLuint +_slang_sizeof_type_specifier(const slang_type_specifier *spec); + +extern GLboolean +_slang_codegen_function(slang_assemble_ctx *A , struct slang_function_ *fun); + +extern GLboolean +_slang_codegen_global_variable(slang_assemble_ctx *A, slang_variable *var, + slang_unit_type type); + + +#endif /* SLANG_CODEGEN_H */ diff --git a/mesalib/src/mesa/shader/slang/slang_compile.c b/mesalib/src/mesa/shader/slang/slang_compile.c new file mode 100644 index 000000000..c1b97c7cb --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_compile.c @@ -0,0 +1,2825 @@ +/* + * Mesa 3-D graphics library + * + * Copyright (C) 2005-2006 Brian Paul All Rights Reserved. + * Copyright (C) 2008 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_compile.c + * slang front-end compiler + * \author Michal Krol + */ + +#include "main/imports.h" +#include "main/context.h" +#include "shader/program.h" +#include "shader/programopt.h" +#include "shader/prog_optimize.h" +#include "shader/prog_print.h" +#include "shader/prog_parameter.h" +#include "shader/grammar/grammar_mesa.h" +#include "slang_codegen.h" +#include "slang_compile.h" +#include "slang_preprocess.h" +#include "slang_storage.h" +#include "slang_emit.h" +#include "slang_log.h" +#include "slang_mem.h" +#include "slang_vartable.h" +#include "slang_simplify.h" + +#include "slang_print.h" + +/* + * This is a straightforward implementation of the slang front-end + * compiler. Lots of error-checking functionality is missing but + * every well-formed shader source should compile successfully and + * execute as expected. However, some semantically ill-formed shaders + * may be accepted resulting in undefined behaviour. + */ + + +/** re-defined below, should be the same though */ +#define TYPE_SPECIFIER_COUNT 32 + + +/** + * Check if the given identifier is legal. + */ +static GLboolean +legal_identifier(slang_atom name) +{ + /* "gl_" is a reserved prefix */ + if (_mesa_strncmp((char *) name, "gl_", 3) == 0) { + return GL_FALSE; + } + return GL_TRUE; +} + + +/* + * slang_code_unit + */ + +GLvoid +_slang_code_unit_ctr(slang_code_unit * self, + struct slang_code_object_ * object) +{ + _slang_variable_scope_ctr(&self->vars); + _slang_function_scope_ctr(&self->funs); + _slang_struct_scope_ctr(&self->structs); + self->object = object; +} + +GLvoid +_slang_code_unit_dtr(slang_code_unit * self) +{ + slang_variable_scope_destruct(&self->vars); + slang_function_scope_destruct(&self->funs); + slang_struct_scope_destruct(&self->structs); +} + +/* + * slang_code_object + */ + +GLvoid +_slang_code_object_ctr(slang_code_object * self) +{ + GLuint i; + + for (i = 0; i < SLANG_BUILTIN_TOTAL; i++) + _slang_code_unit_ctr(&self->builtin[i], self); + _slang_code_unit_ctr(&self->unit, self); + slang_atom_pool_construct(&self->atompool); +} + +GLvoid +_slang_code_object_dtr(slang_code_object * self) +{ + GLuint i; + + for (i = 0; i < SLANG_BUILTIN_TOTAL; i++) + _slang_code_unit_dtr(&self->builtin[i]); + _slang_code_unit_dtr(&self->unit); + slang_atom_pool_destruct(&self->atompool); +} + + +/* slang_parse_ctx */ + +typedef struct slang_parse_ctx_ +{ + const byte *I; + slang_info_log *L; + int parsing_builtin; + GLboolean global_scope; /**< Is object being declared a global? */ + slang_atom_pool *atoms; + slang_unit_type type; /**< Vertex vs. Fragment */ + GLuint version; /**< user-specified (or default) #version */ +} slang_parse_ctx; + +/* slang_output_ctx */ + +typedef struct slang_output_ctx_ +{ + slang_variable_scope *vars; + slang_function_scope *funs; + slang_struct_scope *structs; + struct gl_program *program; + struct gl_sl_pragmas *pragmas; + slang_var_table *vartable; + GLuint default_precision[TYPE_SPECIFIER_COUNT]; + GLboolean allow_precision; + GLboolean allow_invariant; + GLboolean allow_centroid; + GLboolean allow_array_types; /* float[] syntax */ +} slang_output_ctx; + +/* _slang_compile() */ + + +/* Debugging aid, print file/line where parsing error is detected */ +#define RETURN0 \ + do { \ + if (0) \ + printf("slang error at %s:%d\n", __FILE__, __LINE__); \ + return 0; \ + } while (0) + + +static void +parse_identifier_str(slang_parse_ctx * C, char **id) +{ + *id = (char *) C->I; + C->I += _mesa_strlen(*id) + 1; +} + +static slang_atom +parse_identifier(slang_parse_ctx * C) +{ + const char *id; + + id = (const char *) C->I; + C->I += _mesa_strlen(id) + 1; + return slang_atom_pool_atom(C->atoms, id); +} + +static int +parse_number(slang_parse_ctx * C, int *number) +{ + const int radix = (int) (*C->I++); + *number = 0; + while (*C->I != '\0') { + int digit; + if (*C->I >= '0' && *C->I <= '9') + digit = (int) (*C->I - '0'); + else if (*C->I >= 'A' && *C->I <= 'Z') + digit = (int) (*C->I - 'A') + 10; + else + digit = (int) (*C->I - 'a') + 10; + *number = *number * radix + digit; + C->I++; + } + C->I++; + if (*number > 65535) + slang_info_log_warning(C->L, "%d: literal integer overflow.", *number); + return 1; +} + +static int +parse_float(slang_parse_ctx * C, float *number) +{ + char *integral = NULL; + char *fractional = NULL; + char *exponent = NULL; + char *whole = NULL; + + parse_identifier_str(C, &integral); + parse_identifier_str(C, &fractional); + parse_identifier_str(C, &exponent); + + whole = (char *) _slang_alloc((_mesa_strlen(integral) + + _mesa_strlen(fractional) + + _mesa_strlen(exponent) + 3) * sizeof(char)); + if (whole == NULL) { + slang_info_log_memory(C->L); + RETURN0; + } + + slang_string_copy(whole, integral); + slang_string_concat(whole, "."); + slang_string_concat(whole, fractional); + slang_string_concat(whole, "E"); + slang_string_concat(whole, exponent); + + *number = (float) (_mesa_strtod(whole, (char **) NULL)); + + _slang_free(whole); + + return 1; +} + +/* revision number - increment after each change affecting emitted output */ +#define REVISION 5 + +static int +check_revision(slang_parse_ctx * C) +{ + if (*C->I != REVISION) { + slang_info_log_error(C->L, "Internal compiler error."); + RETURN0; + } + C->I++; + return 1; +} + +static int parse_statement(slang_parse_ctx *, slang_output_ctx *, + slang_operation *); +static int parse_expression(slang_parse_ctx *, slang_output_ctx *, + slang_operation *); +static int parse_type_specifier(slang_parse_ctx *, slang_output_ctx *, + slang_type_specifier *); +static int +parse_type_array_size(slang_parse_ctx *C, + slang_output_ctx *O, + GLint *array_len); + +static GLboolean +parse_array_len(slang_parse_ctx * C, slang_output_ctx * O, GLuint * len) +{ + slang_operation array_size; + slang_name_space space; + GLboolean result; + + if (!slang_operation_construct(&array_size)) + return GL_FALSE; + if (!parse_expression(C, O, &array_size)) { + slang_operation_destruct(&array_size); + return GL_FALSE; + } + + space.funcs = O->funs; + space.structs = O->structs; + space.vars = O->vars; + + /* evaluate compile-time expression which is array size */ + _slang_simplify(&array_size, &space, C->atoms); + + if (array_size.type == SLANG_OPER_LITERAL_INT) { + result = GL_TRUE; + *len = (GLint) array_size.literal[0]; + } else if (array_size.type == SLANG_OPER_IDENTIFIER) { + slang_variable *var = _slang_variable_locate(array_size.locals, array_size.a_id, GL_TRUE); + if (!var) { + slang_info_log_error(C->L, "undefined variable '%s'", + (char *) array_size.a_id); + result = GL_FALSE; + } else if (var->type.qualifier == SLANG_QUAL_CONST && + var->type.specifier.type == SLANG_SPEC_INT) { + if (var->initializer && + var->initializer->type == SLANG_OPER_LITERAL_INT) { + *len = (GLint) var->initializer->literal[0]; + result = GL_TRUE; + } else { + slang_info_log_error(C->L, "unable to parse array size declaration"); + result = GL_FALSE; + } + } else { + slang_info_log_error(C->L, "unable to parse array size declaration"); + result = GL_FALSE; + } + } else { + result = GL_FALSE; + } + + slang_operation_destruct(&array_size); + return result; +} + +static GLboolean +calculate_var_size(slang_parse_ctx * C, slang_output_ctx * O, + slang_variable * var) +{ + slang_storage_aggregate agg; + + if (!slang_storage_aggregate_construct(&agg)) + return GL_FALSE; + if (!_slang_aggregate_variable(&agg, &var->type.specifier, var->array_len, + O->funs, O->structs, O->vars, C->atoms)) { + slang_storage_aggregate_destruct(&agg); + return GL_FALSE; + } + var->size = _slang_sizeof_aggregate(&agg); + slang_storage_aggregate_destruct(&agg); + return GL_TRUE; +} + +static void +promote_type_to_array(slang_parse_ctx *C, + slang_fully_specified_type *type, + GLint array_len) +{ + slang_type_specifier *baseType = + slang_type_specifier_new(type->specifier.type, NULL, NULL); + + type->specifier.type = SLANG_SPEC_ARRAY; + type->specifier._array = baseType; + type->array_len = array_len; +} + + +static GLboolean +convert_to_array(slang_parse_ctx * C, slang_variable * var, + const slang_type_specifier * sp) +{ + /* sized array - mark it as array, copy the specifier to the array element + * and parse the expression */ + var->type.specifier.type = SLANG_SPEC_ARRAY; + var->type.specifier._array = (slang_type_specifier *) + _slang_alloc(sizeof(slang_type_specifier)); + if (var->type.specifier._array == NULL) { + slang_info_log_memory(C->L); + return GL_FALSE; + } + slang_type_specifier_ctr(var->type.specifier._array); + return slang_type_specifier_copy(var->type.specifier._array, sp); +} + +/* structure field */ +#define FIELD_NONE 0 +#define FIELD_NEXT 1 +#define FIELD_ARRAY 2 + +static GLboolean +parse_struct_field_var(slang_parse_ctx * C, slang_output_ctx * O, + slang_variable * var, slang_atom a_name, + const slang_type_specifier * sp, + GLuint array_len) +{ + var->a_name = a_name; + if (var->a_name == SLANG_ATOM_NULL) + return GL_FALSE; + + switch (*C->I++) { + case FIELD_NONE: + if (array_len != -1) { + if (!convert_to_array(C, var, sp)) + return GL_FALSE; + var->array_len = array_len; + } + else { + if (!slang_type_specifier_copy(&var->type.specifier, sp)) + return GL_FALSE; + } + break; + case FIELD_ARRAY: + if (array_len != -1) + return GL_FALSE; + if (!convert_to_array(C, var, sp)) + return GL_FALSE; + if (!parse_array_len(C, O, &var->array_len)) + return GL_FALSE; + break; + default: + return GL_FALSE; + } + + return calculate_var_size(C, O, var); +} + +static int +parse_struct_field(slang_parse_ctx * C, slang_output_ctx * O, + slang_struct * st, slang_type_specifier * sp) +{ + slang_output_ctx o = *O; + GLint array_len; + + o.structs = st->structs; + if (!parse_type_specifier(C, &o, sp)) + RETURN0; + if (!parse_type_array_size(C, &o, &array_len)) + RETURN0; + + do { + slang_atom a_name; + slang_variable *var = slang_variable_scope_grow(st->fields); + if (!var) { + slang_info_log_memory(C->L); + RETURN0; + } + a_name = parse_identifier(C); + if (_slang_variable_locate(st->fields, a_name, GL_FALSE)) { + slang_info_log_error(C->L, "duplicate field '%s'", (char *) a_name); + RETURN0; + } + + if (!parse_struct_field_var(C, &o, var, a_name, sp, array_len)) + RETURN0; + } + while (*C->I++ != FIELD_NONE); + + return 1; +} + +static int +parse_struct(slang_parse_ctx * C, slang_output_ctx * O, slang_struct ** st) +{ + slang_atom a_name; + const char *name; + + /* parse struct name (if any) and make sure it is unique in current scope */ + a_name = parse_identifier(C); + if (a_name == SLANG_ATOM_NULL) + RETURN0; + + name = slang_atom_pool_id(C->atoms, a_name); + if (name[0] != '\0' + && slang_struct_scope_find(O->structs, a_name, 0) != NULL) { + slang_info_log_error(C->L, "%s: duplicate type name.", name); + RETURN0; + } + + /* set-up a new struct */ + *st = (slang_struct *) _slang_alloc(sizeof(slang_struct)); + if (*st == NULL) { + slang_info_log_memory(C->L); + RETURN0; + } + if (!slang_struct_construct(*st)) { + _slang_free(*st); + *st = NULL; + slang_info_log_memory(C->L); + RETURN0; + } + (**st).a_name = a_name; + (**st).structs->outer_scope = O->structs; + + /* parse individual struct fields */ + do { + slang_type_specifier sp; + + slang_type_specifier_ctr(&sp); + if (!parse_struct_field(C, O, *st, &sp)) { + slang_type_specifier_dtr(&sp); + RETURN0; + } + slang_type_specifier_dtr(&sp); + } + while (*C->I++ != FIELD_NONE); + + /* if named struct, copy it to current scope */ + if (name[0] != '\0') { + slang_struct *s; + + O->structs->structs = + (slang_struct *) _slang_realloc(O->structs->structs, + O->structs->num_structs + * sizeof(slang_struct), + (O->structs->num_structs + 1) + * sizeof(slang_struct)); + if (O->structs->structs == NULL) { + slang_info_log_memory(C->L); + RETURN0; + } + s = &O->structs->structs[O->structs->num_structs]; + if (!slang_struct_construct(s)) + RETURN0; + O->structs->num_structs++; + if (!slang_struct_copy(s, *st)) + RETURN0; + } + + return 1; +} + + +/* invariant qualifer */ +#define TYPE_VARIANT 90 +#define TYPE_INVARIANT 91 + +static int +parse_type_variant(slang_parse_ctx * C, slang_type_variant *variant) +{ + GLuint invariant = *C->I++; + switch (invariant) { + case TYPE_VARIANT: + *variant = SLANG_VARIANT; + return 1; + case TYPE_INVARIANT: + *variant = SLANG_INVARIANT; + return 1; + default: + RETURN0; + } +} + + +/* centroid qualifer */ +#define TYPE_CENTER 95 +#define TYPE_CENTROID 96 + +static int +parse_type_centroid(slang_parse_ctx * C, slang_type_centroid *centroid) +{ + GLuint c = *C->I++; + switch (c) { + case TYPE_CENTER: + *centroid = SLANG_CENTER; + return 1; + case TYPE_CENTROID: + *centroid = SLANG_CENTROID; + return 1; + default: + RETURN0; + } +} + + +/* type qualifier */ +#define TYPE_QUALIFIER_NONE 0 +#define TYPE_QUALIFIER_CONST 1 +#define TYPE_QUALIFIER_ATTRIBUTE 2 +#define TYPE_QUALIFIER_VARYING 3 +#define TYPE_QUALIFIER_UNIFORM 4 +#define TYPE_QUALIFIER_FIXEDOUTPUT 5 +#define TYPE_QUALIFIER_FIXEDINPUT 6 + +static int +parse_type_qualifier(slang_parse_ctx * C, slang_type_qualifier * qual) +{ + GLuint qualifier = *C->I++; + switch (qualifier) { + case TYPE_QUALIFIER_NONE: + *qual = SLANG_QUAL_NONE; + break; + case TYPE_QUALIFIER_CONST: + *qual = SLANG_QUAL_CONST; + break; + case TYPE_QUALIFIER_ATTRIBUTE: + *qual = SLANG_QUAL_ATTRIBUTE; + break; + case TYPE_QUALIFIER_VARYING: + *qual = SLANG_QUAL_VARYING; + break; + case TYPE_QUALIFIER_UNIFORM: + *qual = SLANG_QUAL_UNIFORM; + break; + case TYPE_QUALIFIER_FIXEDOUTPUT: + *qual = SLANG_QUAL_FIXEDOUTPUT; + break; + case TYPE_QUALIFIER_FIXEDINPUT: + *qual = SLANG_QUAL_FIXEDINPUT; + break; + default: + RETURN0; + } + return 1; +} + +/* type specifier */ +#define TYPE_SPECIFIER_VOID 0 +#define TYPE_SPECIFIER_BOOL 1 +#define TYPE_SPECIFIER_BVEC2 2 +#define TYPE_SPECIFIER_BVEC3 3 +#define TYPE_SPECIFIER_BVEC4 4 +#define TYPE_SPECIFIER_INT 5 +#define TYPE_SPECIFIER_IVEC2 6 +#define TYPE_SPECIFIER_IVEC3 7 +#define TYPE_SPECIFIER_IVEC4 8 +#define TYPE_SPECIFIER_FLOAT 9 +#define TYPE_SPECIFIER_VEC2 10 +#define TYPE_SPECIFIER_VEC3 11 +#define TYPE_SPECIFIER_VEC4 12 +#define TYPE_SPECIFIER_MAT2 13 +#define TYPE_SPECIFIER_MAT3 14 +#define TYPE_SPECIFIER_MAT4 15 +#define TYPE_SPECIFIER_SAMPLER1D 16 +#define TYPE_SPECIFIER_SAMPLER2D 17 +#define TYPE_SPECIFIER_SAMPLER3D 18 +#define TYPE_SPECIFIER_SAMPLERCUBE 19 +#define TYPE_SPECIFIER_SAMPLER1DSHADOW 20 +#define TYPE_SPECIFIER_SAMPLER2DSHADOW 21 +#define TYPE_SPECIFIER_SAMPLER2DRECT 22 +#define TYPE_SPECIFIER_SAMPLER2DRECTSHADOW 23 +#define TYPE_SPECIFIER_STRUCT 24 +#define TYPE_SPECIFIER_TYPENAME 25 +#define TYPE_SPECIFIER_MAT23 26 +#define TYPE_SPECIFIER_MAT32 27 +#define TYPE_SPECIFIER_MAT24 28 +#define TYPE_SPECIFIER_MAT42 29 +#define TYPE_SPECIFIER_MAT34 30 +#define TYPE_SPECIFIER_MAT43 31 +#define TYPE_SPECIFIER_COUNT 32 + +static int +parse_type_specifier(slang_parse_ctx * C, slang_output_ctx * O, + slang_type_specifier * spec) +{ + switch (*C->I++) { + case TYPE_SPECIFIER_VOID: + spec->type = SLANG_SPEC_VOID; + break; + case TYPE_SPECIFIER_BOOL: + spec->type = SLANG_SPEC_BOOL; + break; + case TYPE_SPECIFIER_BVEC2: + spec->type = SLANG_SPEC_BVEC2; + break; + case TYPE_SPECIFIER_BVEC3: + spec->type = SLANG_SPEC_BVEC3; + break; + case TYPE_SPECIFIER_BVEC4: + spec->type = SLANG_SPEC_BVEC4; + break; + case TYPE_SPECIFIER_INT: + spec->type = SLANG_SPEC_INT; + break; + case TYPE_SPECIFIER_IVEC2: + spec->type = SLANG_SPEC_IVEC2; + break; + case TYPE_SPECIFIER_IVEC3: + spec->type = SLANG_SPEC_IVEC3; + break; + case TYPE_SPECIFIER_IVEC4: + spec->type = SLANG_SPEC_IVEC4; + break; + case TYPE_SPECIFIER_FLOAT: + spec->type = SLANG_SPEC_FLOAT; + break; + case TYPE_SPECIFIER_VEC2: + spec->type = SLANG_SPEC_VEC2; + break; + case TYPE_SPECIFIER_VEC3: + spec->type = SLANG_SPEC_VEC3; + break; + case TYPE_SPECIFIER_VEC4: + spec->type = SLANG_SPEC_VEC4; + break; + case TYPE_SPECIFIER_MAT2: + spec->type = SLANG_SPEC_MAT2; + break; + case TYPE_SPECIFIER_MAT3: + spec->type = SLANG_SPEC_MAT3; + break; + case TYPE_SPECIFIER_MAT4: + spec->type = SLANG_SPEC_MAT4; + break; + case TYPE_SPECIFIER_MAT23: + spec->type = SLANG_SPEC_MAT23; + break; + case TYPE_SPECIFIER_MAT32: + spec->type = SLANG_SPEC_MAT32; + break; + case TYPE_SPECIFIER_MAT24: + spec->type = SLANG_SPEC_MAT24; + break; + case TYPE_SPECIFIER_MAT42: + spec->type = SLANG_SPEC_MAT42; + break; + case TYPE_SPECIFIER_MAT34: + spec->type = SLANG_SPEC_MAT34; + break; + case TYPE_SPECIFIER_MAT43: + spec->type = SLANG_SPEC_MAT43; + break; + case TYPE_SPECIFIER_SAMPLER1D: + spec->type = SLANG_SPEC_SAMPLER1D; + break; + case TYPE_SPECIFIER_SAMPLER2D: + spec->type = SLANG_SPEC_SAMPLER2D; + break; + case TYPE_SPECIFIER_SAMPLER3D: + spec->type = SLANG_SPEC_SAMPLER3D; + break; + case TYPE_SPECIFIER_SAMPLERCUBE: + spec->type = SLANG_SPEC_SAMPLERCUBE; + break; + case TYPE_SPECIFIER_SAMPLER2DRECT: + spec->type = SLANG_SPEC_SAMPLER2DRECT; + break; + case TYPE_SPECIFIER_SAMPLER1DSHADOW: + spec->type = SLANG_SPEC_SAMPLER1DSHADOW; + break; + case TYPE_SPECIFIER_SAMPLER2DSHADOW: + spec->type = SLANG_SPEC_SAMPLER2DSHADOW; + break; + case TYPE_SPECIFIER_SAMPLER2DRECTSHADOW: + spec->type = SLANG_SPEC_SAMPLER2DRECTSHADOW; + break; + case TYPE_SPECIFIER_STRUCT: + spec->type = SLANG_SPEC_STRUCT; + if (!parse_struct(C, O, &spec->_struct)) + RETURN0; + break; + case TYPE_SPECIFIER_TYPENAME: + spec->type = SLANG_SPEC_STRUCT; + { + slang_atom a_name; + slang_struct *stru; + + a_name = parse_identifier(C); + if (a_name == NULL) + RETURN0; + + stru = slang_struct_scope_find(O->structs, a_name, 1); + if (stru == NULL) { + slang_info_log_error(C->L, "undeclared type name '%s'", + slang_atom_pool_id(C->atoms, a_name)); + RETURN0; + } + + spec->_struct = (slang_struct *) _slang_alloc(sizeof(slang_struct)); + if (spec->_struct == NULL) { + slang_info_log_memory(C->L); + RETURN0; + } + if (!slang_struct_construct(spec->_struct)) { + _slang_free(spec->_struct); + spec->_struct = NULL; + RETURN0; + } + if (!slang_struct_copy(spec->_struct, stru)) + RETURN0; + } + break; + default: + RETURN0; + } + return 1; +} + +#define TYPE_SPECIFIER_NONARRAY 0 +#define TYPE_SPECIFIER_ARRAY 1 + +static int +parse_type_array_size(slang_parse_ctx *C, + slang_output_ctx *O, + GLint *array_len) +{ + GLuint size; + + switch (*C->I++) { + case TYPE_SPECIFIER_NONARRAY: + *array_len = -1; /* -1 = not an array */ + break; + case TYPE_SPECIFIER_ARRAY: + if (!parse_array_len(C, O, &size)) + RETURN0; + *array_len = (GLint) size; + break; + default: + assert(0); + RETURN0; + } + return 1; +} + +#define PRECISION_DEFAULT 0 +#define PRECISION_LOW 1 +#define PRECISION_MEDIUM 2 +#define PRECISION_HIGH 3 + +static int +parse_type_precision(slang_parse_ctx *C, + slang_type_precision *precision) +{ + GLint prec = *C->I++; + switch (prec) { + case PRECISION_DEFAULT: + *precision = SLANG_PREC_DEFAULT; + return 1; + case PRECISION_LOW: + *precision = SLANG_PREC_LOW; + return 1; + case PRECISION_MEDIUM: + *precision = SLANG_PREC_MEDIUM; + return 1; + case PRECISION_HIGH: + *precision = SLANG_PREC_HIGH; + return 1; + default: + RETURN0; + } +} + +static int +parse_fully_specified_type(slang_parse_ctx * C, slang_output_ctx * O, + slang_fully_specified_type * type) +{ + if (!parse_type_variant(C, &type->variant)) + RETURN0; + + if (!parse_type_centroid(C, &type->centroid)) + RETURN0; + + if (!parse_type_qualifier(C, &type->qualifier)) + RETURN0; + + if (!parse_type_precision(C, &type->precision)) + RETURN0; + + if (!parse_type_specifier(C, O, &type->specifier)) + RETURN0; + + if (!parse_type_array_size(C, O, &type->array_len)) + RETURN0; + + if (!O->allow_invariant && type->variant == SLANG_INVARIANT) { + slang_info_log_error(C->L, + "'invariant' keyword not allowed (perhaps set #version 120)"); + RETURN0; + } + + if (!O->allow_centroid && type->centroid == SLANG_CENTROID) { + slang_info_log_error(C->L, + "'centroid' keyword not allowed (perhaps set #version 120)"); + RETURN0; + } + else if (type->centroid == SLANG_CENTROID && + type->qualifier != SLANG_QUAL_VARYING) { + slang_info_log_error(C->L, + "'centroid' keyword only allowed for varying vars"); + RETURN0; + } + + + /* need this? + if (type->qualifier != SLANG_QUAL_VARYING && + type->variant == SLANG_INVARIANT) { + slang_info_log_error(C->L, + "invariant qualifer only allowed for varying vars"); + RETURN0; + } + */ + + if (O->allow_precision) { + if (type->precision == SLANG_PREC_DEFAULT) { + assert(type->specifier.type < TYPE_SPECIFIER_COUNT); + /* use the default precision for this datatype */ + type->precision = O->default_precision[type->specifier.type]; + } + } + else { + /* only default is allowed */ + if (type->precision != SLANG_PREC_DEFAULT) { + slang_info_log_error(C->L, "precision qualifiers not allowed"); + RETURN0; + } + } + + if (!O->allow_array_types && type->array_len >= 0) { + slang_info_log_error(C->L, "first-class array types not allowed"); + RETURN0; + } + + if (type->array_len >= 0) { + /* convert type to array type (ex: convert "int" to "array of int" */ + promote_type_to_array(C, type, type->array_len); + } + + return 1; +} + +/* operation */ +#define OP_END 0 +#define OP_BLOCK_BEGIN_NO_NEW_SCOPE 1 +#define OP_BLOCK_BEGIN_NEW_SCOPE 2 +#define OP_DECLARE 3 +#define OP_ASM 4 +#define OP_BREAK 5 +#define OP_CONTINUE 6 +#define OP_DISCARD 7 +#define OP_RETURN 8 +#define OP_EXPRESSION 9 +#define OP_IF 10 +#define OP_WHILE 11 +#define OP_DO 12 +#define OP_FOR 13 +#define OP_PUSH_VOID 14 +#define OP_PUSH_BOOL 15 +#define OP_PUSH_INT 16 +#define OP_PUSH_FLOAT 17 +#define OP_PUSH_IDENTIFIER 18 +#define OP_SEQUENCE 19 +#define OP_ASSIGN 20 +#define OP_ADDASSIGN 21 +#define OP_SUBASSIGN 22 +#define OP_MULASSIGN 23 +#define OP_DIVASSIGN 24 +/*#define OP_MODASSIGN 25*/ +/*#define OP_LSHASSIGN 26*/ +/*#define OP_RSHASSIGN 27*/ +/*#define OP_ORASSIGN 28*/ +/*#define OP_XORASSIGN 29*/ +/*#define OP_ANDASSIGN 30*/ +#define OP_SELECT 31 +#define OP_LOGICALOR 32 +#define OP_LOGICALXOR 33 +#define OP_LOGICALAND 34 +/*#define OP_BITOR 35*/ +/*#define OP_BITXOR 36*/ +/*#define OP_BITAND 37*/ +#define OP_EQUAL 38 +#define OP_NOTEQUAL 39 +#define OP_LESS 40 +#define OP_GREATER 41 +#define OP_LESSEQUAL 42 +#define OP_GREATEREQUAL 43 +/*#define OP_LSHIFT 44*/ +/*#define OP_RSHIFT 45*/ +#define OP_ADD 46 +#define OP_SUBTRACT 47 +#define OP_MULTIPLY 48 +#define OP_DIVIDE 49 +/*#define OP_MODULUS 50*/ +#define OP_PREINCREMENT 51 +#define OP_PREDECREMENT 52 +#define OP_PLUS 53 +#define OP_MINUS 54 +/*#define OP_COMPLEMENT 55*/ +#define OP_NOT 56 +#define OP_SUBSCRIPT 57 +#define OP_CALL 58 +#define OP_FIELD 59 +#define OP_POSTINCREMENT 60 +#define OP_POSTDECREMENT 61 +#define OP_PRECISION 62 +#define OP_METHOD 63 + + +/** + * When parsing a compound production, this function is used to parse the + * children. + * For example, a while-loop compound will have two children, the + * while condition expression and the loop body. So, this function will + * be called twice to parse those two sub-expressions. + * \param C the parsing context + * \param O the output context + * \param oper the operation we're parsing + * \param statement indicates whether parsing a statement, or expression + * \return 1 if success, 0 if error + */ +static int +parse_child_operation(slang_parse_ctx * C, slang_output_ctx * O, + slang_operation * oper, GLboolean statement) +{ + slang_operation *ch; + + /* grow child array */ + ch = slang_operation_grow(&oper->num_children, &oper->children); + if (statement) + return parse_statement(C, O, ch); + return parse_expression(C, O, ch); +} + +static int parse_declaration(slang_parse_ctx * C, slang_output_ctx * O); + +static int +parse_statement(slang_parse_ctx * C, slang_output_ctx * O, + slang_operation * oper) +{ + int op; + + oper->locals->outer_scope = O->vars; + + op = *C->I++; + switch (op) { + case OP_BLOCK_BEGIN_NO_NEW_SCOPE: + /* parse child statements, do not create new variable scope */ + oper->type = SLANG_OPER_BLOCK_NO_NEW_SCOPE; + while (*C->I != OP_END) + if (!parse_child_operation(C, O, oper, GL_TRUE)) + RETURN0; + C->I++; + break; + case OP_BLOCK_BEGIN_NEW_SCOPE: + /* parse child statements, create new variable scope */ + { + slang_output_ctx o = *O; + + oper->type = SLANG_OPER_BLOCK_NEW_SCOPE; + o.vars = oper->locals; + while (*C->I != OP_END) + if (!parse_child_operation(C, &o, oper, GL_TRUE)) + RETURN0; + C->I++; + } + break; + case OP_DECLARE: + /* local variable declaration, individual declarators are stored as + * children identifiers + */ + oper->type = SLANG_OPER_BLOCK_NO_NEW_SCOPE; + { + const unsigned int first_var = O->vars->num_variables; + + /* parse the declaration, note that there can be zero or more + * than one declarators + */ + if (!parse_declaration(C, O)) + RETURN0; + if (first_var < O->vars->num_variables) { + const unsigned int num_vars = O->vars->num_variables - first_var; + unsigned int i; + assert(oper->num_children == 0); + oper->num_children = num_vars; + oper->children = slang_operation_new(num_vars); + if (oper->children == NULL) { + slang_info_log_memory(C->L); + RETURN0; + } + for (i = first_var; i < O->vars->num_variables; i++) { + slang_operation *o = &oper->children[i - first_var]; + slang_variable *var = O->vars->variables[i]; + o->type = SLANG_OPER_VARIABLE_DECL; + o->locals->outer_scope = O->vars; + o->a_id = var->a_name; + + /* new/someday... + calculate_var_size(C, O, var); + */ + + if (!legal_identifier(o->a_id)) { + slang_info_log_error(C->L, "illegal variable name '%s'", + (char *) o->a_id); + RETURN0; + } + } + } + } + break; + case OP_ASM: + /* the __asm statement, parse the mnemonic and all its arguments + * as expressions + */ + oper->type = SLANG_OPER_ASM; + oper->a_id = parse_identifier(C); + if (oper->a_id == SLANG_ATOM_NULL) + RETURN0; + while (*C->I != OP_END) { + if (!parse_child_operation(C, O, oper, GL_FALSE)) + RETURN0; + } + C->I++; + break; + case OP_BREAK: + oper->type = SLANG_OPER_BREAK; + break; + case OP_CONTINUE: + oper->type = SLANG_OPER_CONTINUE; + break; + case OP_DISCARD: + oper->type = SLANG_OPER_DISCARD; + break; + case OP_RETURN: + oper->type = SLANG_OPER_RETURN; + if (!parse_child_operation(C, O, oper, GL_FALSE)) + RETURN0; + break; + case OP_EXPRESSION: + oper->type = SLANG_OPER_EXPRESSION; + if (!parse_child_operation(C, O, oper, GL_FALSE)) + RETURN0; + break; + case OP_IF: + oper->type = SLANG_OPER_IF; + if (!parse_child_operation(C, O, oper, GL_FALSE)) + RETURN0; + if (!parse_child_operation(C, O, oper, GL_TRUE)) + RETURN0; + if (!parse_child_operation(C, O, oper, GL_TRUE)) + RETURN0; + break; + case OP_WHILE: + { + slang_output_ctx o = *O; + + oper->type = SLANG_OPER_WHILE; + o.vars = oper->locals; + if (!parse_child_operation(C, &o, oper, GL_TRUE)) + RETURN0; + if (!parse_child_operation(C, &o, oper, GL_TRUE)) + RETURN0; + } + break; + case OP_DO: + oper->type = SLANG_OPER_DO; + if (!parse_child_operation(C, O, oper, GL_TRUE)) + RETURN0; + if (!parse_child_operation(C, O, oper, GL_FALSE)) + RETURN0; + break; + case OP_FOR: + { + slang_output_ctx o = *O; + + oper->type = SLANG_OPER_FOR; + o.vars = oper->locals; + if (!parse_child_operation(C, &o, oper, GL_TRUE)) + RETURN0; + if (!parse_child_operation(C, &o, oper, GL_TRUE)) + RETURN0; + if (!parse_child_operation(C, &o, oper, GL_FALSE)) + RETURN0; + if (!parse_child_operation(C, &o, oper, GL_TRUE)) + RETURN0; + } + break; + case OP_PRECISION: + { + /* set default precision for a type in this scope */ + /* ignored at this time */ + int prec_qual = *C->I++; + int datatype = *C->I++; + (void) prec_qual; + (void) datatype; + } + break; + default: + /*printf("Unexpected operation %d\n", op);*/ + RETURN0; + } + return 1; +} + +static int +handle_nary_expression(slang_parse_ctx * C, slang_operation * op, + slang_operation ** ops, unsigned int *total_ops, + unsigned int n) +{ + unsigned int i; + + op->children = slang_operation_new(n); + if (op->children == NULL) { + slang_info_log_memory(C->L); + RETURN0; + } + op->num_children = n; + + for (i = 0; i < n; i++) { + slang_operation_destruct(&op->children[i]); + op->children[i] = (*ops)[*total_ops - (n + 1 - i)]; + } + + (*ops)[*total_ops - (n + 1)] = (*ops)[*total_ops - 1]; + *total_ops -= n; + + *ops = (slang_operation *) + _slang_realloc(*ops, + (*total_ops + n) * sizeof(slang_operation), + *total_ops * sizeof(slang_operation)); + if (*ops == NULL) { + slang_info_log_memory(C->L); + RETURN0; + } + return 1; +} + +static int +is_constructor_name(const char *name, slang_atom a_name, + slang_struct_scope * structs) +{ + if (slang_type_specifier_type_from_string(name) != SLANG_SPEC_VOID) + return 1; + return slang_struct_scope_find(structs, a_name, 1) != NULL; +} + +#define FUNCTION_CALL_NONARRAY 0 +#define FUNCTION_CALL_ARRAY 1 + +static int +parse_expression(slang_parse_ctx * C, slang_output_ctx * O, + slang_operation * oper) +{ + slang_operation *ops = NULL; + unsigned int num_ops = 0; + int number; + + while (*C->I != OP_END) { + slang_operation *op; + const unsigned int op_code = *C->I++; + + /* allocate default operation, becomes a no-op if not used */ + ops = (slang_operation *) + _slang_realloc(ops, + num_ops * sizeof(slang_operation), + (num_ops + 1) * sizeof(slang_operation)); + if (ops == NULL) { + slang_info_log_memory(C->L); + RETURN0; + } + op = &ops[num_ops]; + if (!slang_operation_construct(op)) { + slang_info_log_memory(C->L); + RETURN0; + } + num_ops++; + op->locals->outer_scope = O->vars; + + switch (op_code) { + case OP_PUSH_VOID: + op->type = SLANG_OPER_VOID; + break; + case OP_PUSH_BOOL: + op->type = SLANG_OPER_LITERAL_BOOL; + if (!parse_number(C, &number)) + RETURN0; + op->literal[0] = + op->literal[1] = + op->literal[2] = + op->literal[3] = (GLfloat) number; + op->literal_size = 1; + break; + case OP_PUSH_INT: + op->type = SLANG_OPER_LITERAL_INT; + if (!parse_number(C, &number)) + RETURN0; + op->literal[0] = + op->literal[1] = + op->literal[2] = + op->literal[3] = (GLfloat) number; + op->literal_size = 1; + break; + case OP_PUSH_FLOAT: + op->type = SLANG_OPER_LITERAL_FLOAT; + if (!parse_float(C, &op->literal[0])) + RETURN0; + op->literal[1] = + op->literal[2] = + op->literal[3] = op->literal[0]; + op->literal_size = 1; + break; + case OP_PUSH_IDENTIFIER: + op->type = SLANG_OPER_IDENTIFIER; + op->a_id = parse_identifier(C); + if (op->a_id == SLANG_ATOM_NULL) + RETURN0; + break; + case OP_SEQUENCE: + op->type = SLANG_OPER_SEQUENCE; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + case OP_ASSIGN: + op->type = SLANG_OPER_ASSIGN; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + case OP_ADDASSIGN: + op->type = SLANG_OPER_ADDASSIGN; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + case OP_SUBASSIGN: + op->type = SLANG_OPER_SUBASSIGN; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + case OP_MULASSIGN: + op->type = SLANG_OPER_MULASSIGN; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + case OP_DIVASSIGN: + op->type = SLANG_OPER_DIVASSIGN; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + /*case OP_MODASSIGN: */ + /*case OP_LSHASSIGN: */ + /*case OP_RSHASSIGN: */ + /*case OP_ORASSIGN: */ + /*case OP_XORASSIGN: */ + /*case OP_ANDASSIGN: */ + case OP_SELECT: + op->type = SLANG_OPER_SELECT; + if (!handle_nary_expression(C, op, &ops, &num_ops, 3)) + RETURN0; + break; + case OP_LOGICALOR: + op->type = SLANG_OPER_LOGICALOR; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + case OP_LOGICALXOR: + op->type = SLANG_OPER_LOGICALXOR; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + case OP_LOGICALAND: + op->type = SLANG_OPER_LOGICALAND; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + /*case OP_BITOR: */ + /*case OP_BITXOR: */ + /*case OP_BITAND: */ + case OP_EQUAL: + op->type = SLANG_OPER_EQUAL; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + case OP_NOTEQUAL: + op->type = SLANG_OPER_NOTEQUAL; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + case OP_LESS: + op->type = SLANG_OPER_LESS; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + case OP_GREATER: + op->type = SLANG_OPER_GREATER; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + case OP_LESSEQUAL: + op->type = SLANG_OPER_LESSEQUAL; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + case OP_GREATEREQUAL: + op->type = SLANG_OPER_GREATEREQUAL; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + /*case OP_LSHIFT: */ + /*case OP_RSHIFT: */ + case OP_ADD: + op->type = SLANG_OPER_ADD; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + case OP_SUBTRACT: + op->type = SLANG_OPER_SUBTRACT; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + case OP_MULTIPLY: + op->type = SLANG_OPER_MULTIPLY; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + case OP_DIVIDE: + op->type = SLANG_OPER_DIVIDE; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + /*case OP_MODULUS: */ + case OP_PREINCREMENT: + op->type = SLANG_OPER_PREINCREMENT; + if (!handle_nary_expression(C, op, &ops, &num_ops, 1)) + RETURN0; + break; + case OP_PREDECREMENT: + op->type = SLANG_OPER_PREDECREMENT; + if (!handle_nary_expression(C, op, &ops, &num_ops, 1)) + RETURN0; + break; + case OP_PLUS: + op->type = SLANG_OPER_PLUS; + if (!handle_nary_expression(C, op, &ops, &num_ops, 1)) + RETURN0; + break; + case OP_MINUS: + op->type = SLANG_OPER_MINUS; + if (!handle_nary_expression(C, op, &ops, &num_ops, 1)) + RETURN0; + break; + case OP_NOT: + op->type = SLANG_OPER_NOT; + if (!handle_nary_expression(C, op, &ops, &num_ops, 1)) + RETURN0; + break; + /*case OP_COMPLEMENT: */ + case OP_SUBSCRIPT: + op->type = SLANG_OPER_SUBSCRIPT; + if (!handle_nary_expression(C, op, &ops, &num_ops, 2)) + RETURN0; + break; + case OP_METHOD: + op->type = SLANG_OPER_METHOD; + op->a_obj = parse_identifier(C); + if (op->a_obj == SLANG_ATOM_NULL) + RETURN0; + + op->a_id = parse_identifier(C); + if (op->a_id == SLANG_ATOM_NULL) + RETURN0; + + assert(*C->I == OP_END); + C->I++; + + while (*C->I != OP_END) + if (!parse_child_operation(C, O, op, GL_FALSE)) + RETURN0; + C->I++; +#if 0 + /* don't lookup the method (not yet anyway) */ + if (!C->parsing_builtin + && !slang_function_scope_find_by_name(O->funs, op->a_id, 1)) { + const char *id; + + id = slang_atom_pool_id(C->atoms, op->a_id); + if (!is_constructor_name(id, op->a_id, O->structs)) { + slang_info_log_error(C->L, "%s: undeclared function name.", id); + RETURN0; + } + } +#endif + break; + case OP_CALL: + { + GLboolean array_constructor = GL_FALSE; + GLint array_constructor_size = 0; + + op->type = SLANG_OPER_CALL; + op->a_id = parse_identifier(C); + if (op->a_id == SLANG_ATOM_NULL) + RETURN0; + switch (*C->I++) { + case FUNCTION_CALL_NONARRAY: + /* Nothing to do. */ + break; + case FUNCTION_CALL_ARRAY: + /* Calling an array constructor. For example: + * float[3](1.1, 2.2, 3.3); + */ + if (!O->allow_array_types) { + slang_info_log_error(C->L, + "array constructors not allowed " + "in this GLSL version"); + RETURN0; + } + else { + /* parse the array constructor size */ + slang_operation array_size; + array_constructor = GL_TRUE; + slang_operation_construct(&array_size); + if (!parse_expression(C, O, &array_size)) { + slang_operation_destruct(&array_size); + return GL_FALSE; + } + if (array_size.type != SLANG_OPER_LITERAL_INT) { + slang_info_log_error(C->L, + "constructor array size is not an integer"); + slang_operation_destruct(&array_size); + RETURN0; + } + array_constructor_size = (int) array_size.literal[0]; + op->array_constructor = GL_TRUE; + slang_operation_destruct(&array_size); + } + break; + default: + assert(0); + RETURN0; + } + while (*C->I != OP_END) + if (!parse_child_operation(C, O, op, GL_FALSE)) + RETURN0; + C->I++; + + if (array_constructor && + array_constructor_size != op->num_children) { + slang_info_log_error(C->L, "number of parameters to array" + " constructor does not match array size"); + RETURN0; + } + + if (!C->parsing_builtin + && !slang_function_scope_find_by_name(O->funs, op->a_id, 1)) { + const char *id; + + id = slang_atom_pool_id(C->atoms, op->a_id); + if (!is_constructor_name(id, op->a_id, O->structs)) { + slang_info_log_error(C->L, "%s: undeclared function name.", id); + RETURN0; + } + } + } + break; + case OP_FIELD: + op->type = SLANG_OPER_FIELD; + op->a_id = parse_identifier(C); + if (op->a_id == SLANG_ATOM_NULL) + RETURN0; + if (!handle_nary_expression(C, op, &ops, &num_ops, 1)) + RETURN0; + break; + case OP_POSTINCREMENT: + op->type = SLANG_OPER_POSTINCREMENT; + if (!handle_nary_expression(C, op, &ops, &num_ops, 1)) + RETURN0; + break; + case OP_POSTDECREMENT: + op->type = SLANG_OPER_POSTDECREMENT; + if (!handle_nary_expression(C, op, &ops, &num_ops, 1)) + RETURN0; + break; + default: + RETURN0; + } + } + C->I++; + + slang_operation_destruct(oper); + *oper = *ops; /* struct copy */ + _slang_free(ops); + + return 1; +} + +/* parameter qualifier */ +#define PARAM_QUALIFIER_IN 0 +#define PARAM_QUALIFIER_OUT 1 +#define PARAM_QUALIFIER_INOUT 2 + +/* function parameter array presence */ +#define PARAMETER_ARRAY_NOT_PRESENT 0 +#define PARAMETER_ARRAY_PRESENT 1 + +static int +parse_parameter_declaration(slang_parse_ctx * C, slang_output_ctx * O, + slang_variable * param) +{ + int param_qual, precision_qual; + + /* parse and validate the parameter's type qualifiers (there can be + * two at most) because not all combinations are valid + */ + if (!parse_type_qualifier(C, ¶m->type.qualifier)) + RETURN0; + + param_qual = *C->I++; + switch (param_qual) { + case PARAM_QUALIFIER_IN: + if (param->type.qualifier != SLANG_QUAL_CONST + && param->type.qualifier != SLANG_QUAL_NONE) { + slang_info_log_error(C->L, "Invalid type qualifier."); + RETURN0; + } + break; + case PARAM_QUALIFIER_OUT: + if (param->type.qualifier == SLANG_QUAL_NONE) + param->type.qualifier = SLANG_QUAL_OUT; + else { + slang_info_log_error(C->L, "Invalid type qualifier."); + RETURN0; + } + break; + case PARAM_QUALIFIER_INOUT: + if (param->type.qualifier == SLANG_QUAL_NONE) + param->type.qualifier = SLANG_QUAL_INOUT; + else { + slang_info_log_error(C->L, "Invalid type qualifier."); + RETURN0; + } + break; + default: + RETURN0; + } + + /* parse precision qualifier (lowp, mediump, highp */ + precision_qual = *C->I++; + /* ignored at this time */ + (void) precision_qual; + + /* parse parameter's type specifier and name */ + if (!parse_type_specifier(C, O, ¶m->type.specifier)) + RETURN0; + if (!parse_type_array_size(C, O, ¶m->type.array_len)) + RETURN0; + param->a_name = parse_identifier(C); + if (param->a_name == SLANG_ATOM_NULL) + RETURN0; + + /* first-class array + */ + if (param->type.array_len >= 0) { + slang_type_specifier p; + + slang_type_specifier_ctr(&p); + if (!slang_type_specifier_copy(&p, ¶m->type.specifier)) { + slang_type_specifier_dtr(&p); + RETURN0; + } + if (!convert_to_array(C, param, &p)) { + slang_type_specifier_dtr(&p); + RETURN0; + } + slang_type_specifier_dtr(&p); + param->array_len = param->type.array_len; + } + + /* if the parameter is an array, parse its size (the size must be + * explicitly defined + */ + if (*C->I++ == PARAMETER_ARRAY_PRESENT) { + slang_type_specifier p; + + if (param->type.array_len >= 0) { + slang_info_log_error(C->L, "multi-dimensional arrays not allowed"); + RETURN0; + } + slang_type_specifier_ctr(&p); + if (!slang_type_specifier_copy(&p, ¶m->type.specifier)) { + slang_type_specifier_dtr(&p); + RETURN0; + } + if (!convert_to_array(C, param, &p)) { + slang_type_specifier_dtr(&p); + RETURN0; + } + slang_type_specifier_dtr(&p); + if (!parse_array_len(C, O, ¶m->array_len)) + RETURN0; + } + +#if 0 + /* calculate the parameter size */ + if (!calculate_var_size(C, O, param)) + RETURN0; +#endif + /* TODO: allocate the local address here? */ + return 1; +} + +/* function type */ +#define FUNCTION_ORDINARY 0 +#define FUNCTION_CONSTRUCTOR 1 +#define FUNCTION_OPERATOR 2 + +/* function parameter */ +#define PARAMETER_NONE 0 +#define PARAMETER_NEXT 1 + +/* operator type */ +#define OPERATOR_ADDASSIGN 1 +#define OPERATOR_SUBASSIGN 2 +#define OPERATOR_MULASSIGN 3 +#define OPERATOR_DIVASSIGN 4 +/*#define OPERATOR_MODASSIGN 5*/ +/*#define OPERATOR_LSHASSIGN 6*/ +/*#define OPERATOR_RSHASSIGN 7*/ +/*#define OPERATOR_ANDASSIGN 8*/ +/*#define OPERATOR_XORASSIGN 9*/ +/*#define OPERATOR_ORASSIGN 10*/ +#define OPERATOR_LOGICALXOR 11 +/*#define OPERATOR_BITOR 12*/ +/*#define OPERATOR_BITXOR 13*/ +/*#define OPERATOR_BITAND 14*/ +#define OPERATOR_LESS 15 +#define OPERATOR_GREATER 16 +#define OPERATOR_LESSEQUAL 17 +#define OPERATOR_GREATEREQUAL 18 +/*#define OPERATOR_LSHIFT 19*/ +/*#define OPERATOR_RSHIFT 20*/ +#define OPERATOR_MULTIPLY 21 +#define OPERATOR_DIVIDE 22 +/*#define OPERATOR_MODULUS 23*/ +#define OPERATOR_INCREMENT 24 +#define OPERATOR_DECREMENT 25 +#define OPERATOR_PLUS 26 +#define OPERATOR_MINUS 27 +/*#define OPERATOR_COMPLEMENT 28*/ +#define OPERATOR_NOT 29 + +static const struct +{ + unsigned int o_code; + const char *o_name; +} operator_names[] = { + {OPERATOR_INCREMENT, "++"}, + {OPERATOR_ADDASSIGN, "+="}, + {OPERATOR_PLUS, "+"}, + {OPERATOR_DECREMENT, "--"}, + {OPERATOR_SUBASSIGN, "-="}, + {OPERATOR_MINUS, "-"}, + {OPERATOR_NOT, "!"}, + {OPERATOR_MULASSIGN, "*="}, + {OPERATOR_MULTIPLY, "*"}, + {OPERATOR_DIVASSIGN, "/="}, + {OPERATOR_DIVIDE, "/"}, + {OPERATOR_LESSEQUAL, "<="}, + /*{ OPERATOR_LSHASSIGN, "<<=" }, */ + /*{ OPERATOR_LSHIFT, "<<" }, */ + {OPERATOR_LESS, "<"}, + {OPERATOR_GREATEREQUAL, ">="}, + /*{ OPERATOR_RSHASSIGN, ">>=" }, */ + /*{ OPERATOR_RSHIFT, ">>" }, */ + {OPERATOR_GREATER, ">"}, + /*{ OPERATOR_MODASSIGN, "%=" }, */ + /*{ OPERATOR_MODULUS, "%" }, */ + /*{ OPERATOR_ANDASSIGN, "&=" }, */ + /*{ OPERATOR_BITAND, "&" }, */ + /*{ OPERATOR_ORASSIGN, "|=" }, */ + /*{ OPERATOR_BITOR, "|" }, */ + /*{ OPERATOR_COMPLEMENT, "~" }, */ + /*{ OPERATOR_XORASSIGN, "^=" }, */ + {OPERATOR_LOGICALXOR, "^^"}, + /*{ OPERATOR_BITXOR, "^" } */ +}; + +static slang_atom +parse_operator_name(slang_parse_ctx * C) +{ + unsigned int i; + + for (i = 0; i < sizeof(operator_names) / sizeof(*operator_names); i++) { + if (operator_names[i].o_code == (unsigned int) (*C->I)) { + slang_atom atom = + slang_atom_pool_atom(C->atoms, operator_names[i].o_name); + if (atom == SLANG_ATOM_NULL) { + slang_info_log_memory(C->L); + RETURN0; + } + C->I++; + return atom; + } + } + RETURN0; +} + + +static int +parse_function_prototype(slang_parse_ctx * C, slang_output_ctx * O, + slang_function * func) +{ + GLuint functype; + /* parse function type and name */ + if (!parse_fully_specified_type(C, O, &func->header.type)) + RETURN0; + + functype = *C->I++; + switch (functype) { + case FUNCTION_ORDINARY: + func->kind = SLANG_FUNC_ORDINARY; + func->header.a_name = parse_identifier(C); + if (func->header.a_name == SLANG_ATOM_NULL) + RETURN0; + break; + case FUNCTION_CONSTRUCTOR: + func->kind = SLANG_FUNC_CONSTRUCTOR; + if (func->header.type.specifier.type == SLANG_SPEC_STRUCT) + RETURN0; + func->header.a_name = + slang_atom_pool_atom(C->atoms, + slang_type_specifier_type_to_string + (func->header.type.specifier.type)); + if (func->header.a_name == SLANG_ATOM_NULL) { + slang_info_log_memory(C->L); + RETURN0; + } + break; + case FUNCTION_OPERATOR: + func->kind = SLANG_FUNC_OPERATOR; + func->header.a_name = parse_operator_name(C); + if (func->header.a_name == SLANG_ATOM_NULL) + RETURN0; + break; + default: + RETURN0; + } + + if (!legal_identifier(func->header.a_name)) { + slang_info_log_error(C->L, "illegal function name '%s'", + (char *) func->header.a_name); + RETURN0; + } + + /* parse function parameters */ + while (*C->I++ == PARAMETER_NEXT) { + slang_variable *p = slang_variable_scope_grow(func->parameters); + if (!p) { + slang_info_log_memory(C->L); + RETURN0; + } + if (!parse_parameter_declaration(C, O, p)) + RETURN0; + } + + /* if the function returns a value, append a hidden __retVal 'out' + * parameter that corresponds to the return value. + */ + if (_slang_function_has_return_value(func)) { + slang_variable *p = slang_variable_scope_grow(func->parameters); + slang_atom a_retVal = slang_atom_pool_atom(C->atoms, "__retVal"); + assert(a_retVal); + p->a_name = a_retVal; + p->type = func->header.type; + p->type.qualifier = SLANG_QUAL_OUT; + } + + /* function formal parameters and local variables share the same + * scope, so save the information about param count in a seperate + * place also link the scope to the global variable scope so when a + * given identifier is not found here, the search process continues + * in the global space + */ + func->param_count = func->parameters->num_variables; + func->parameters->outer_scope = O->vars; + + return 1; +} + +static int +parse_function_definition(slang_parse_ctx * C, slang_output_ctx * O, + slang_function * func) +{ + slang_output_ctx o = *O; + + if (!parse_function_prototype(C, O, func)) + RETURN0; + + /* create function's body operation */ + func->body = (slang_operation *) _slang_alloc(sizeof(slang_operation)); + if (func->body == NULL) { + slang_info_log_memory(C->L); + RETURN0; + } + if (!slang_operation_construct(func->body)) { + _slang_free(func->body); + func->body = NULL; + slang_info_log_memory(C->L); + RETURN0; + } + + /* to parse the body the parse context is modified in order to + * capture parsed variables into function's local variable scope + */ + C->global_scope = GL_FALSE; + o.vars = func->parameters; + if (!parse_statement(C, &o, func->body)) + RETURN0; + + C->global_scope = GL_TRUE; + return 1; +} + +static GLboolean +initialize_global(slang_assemble_ctx * A, slang_variable * var) +{ + slang_operation op_id, op_assign; + GLboolean result; + + /* construct the left side of assignment */ + if (!slang_operation_construct(&op_id)) + return GL_FALSE; + op_id.type = SLANG_OPER_IDENTIFIER; + op_id.a_id = var->a_name; + + /* put the variable into operation's scope */ + op_id.locals->variables = + (slang_variable **) _slang_alloc(sizeof(slang_variable *)); + if (op_id.locals->variables == NULL) { + slang_operation_destruct(&op_id); + return GL_FALSE; + } + op_id.locals->num_variables = 1; + op_id.locals->variables[0] = var; + + /* construct the assignment expression */ + if (!slang_operation_construct(&op_assign)) { + op_id.locals->num_variables = 0; + slang_operation_destruct(&op_id); + return GL_FALSE; + } + op_assign.type = SLANG_OPER_ASSIGN; + op_assign.children = + (slang_operation *) _slang_alloc(2 * sizeof(slang_operation)); + if (op_assign.children == NULL) { + slang_operation_destruct(&op_assign); + op_id.locals->num_variables = 0; + slang_operation_destruct(&op_id); + return GL_FALSE; + } + op_assign.num_children = 2; + op_assign.children[0] = op_id; + op_assign.children[1] = *var->initializer; + + result = 1; + + /* carefully destroy the operations */ + op_assign.num_children = 0; + _slang_free(op_assign.children); + op_assign.children = NULL; + slang_operation_destruct(&op_assign); + op_id.locals->num_variables = 0; + slang_operation_destruct(&op_id); + + if (!result) + return GL_FALSE; + + return GL_TRUE; +} + +/* init declarator list */ +#define DECLARATOR_NONE 0 +#define DECLARATOR_NEXT 1 + +/* variable declaration */ +#define VARIABLE_NONE 0 +#define VARIABLE_IDENTIFIER 1 +#define VARIABLE_INITIALIZER 2 +#define VARIABLE_ARRAY_EXPLICIT 3 +#define VARIABLE_ARRAY_UNKNOWN 4 + + +/** + * Parse the initializer for a variable declaration. + */ +static int +parse_init_declarator(slang_parse_ctx * C, slang_output_ctx * O, + const slang_fully_specified_type * type) +{ + GET_CURRENT_CONTEXT(ctx); /* a hack */ + slang_variable *var; + slang_atom a_name; + + /* empty init declatator (without name, e.g. "float ;") */ + if (*C->I++ == VARIABLE_NONE) + return 1; + + a_name = parse_identifier(C); + + /* check if name is already in this scope */ + if (_slang_variable_locate(O->vars, a_name, GL_FALSE)) { + slang_info_log_error(C->L, + "declaration of '%s' conflicts with previous declaration", + (char *) a_name); + RETURN0; + } + + /* make room for the new variable and initialize it */ + var = slang_variable_scope_grow(O->vars); + if (!var) { + slang_info_log_memory(C->L); + RETURN0; + } + + /* copy the declarator type qualifier/etc info, parse the identifier */ + var->type.qualifier = type->qualifier; + var->type.centroid = type->centroid; + var->type.precision = type->precision; + var->type.variant = type->variant; + var->type.array_len = type->array_len; + var->a_name = a_name; + if (var->a_name == SLANG_ATOM_NULL) + RETURN0; + + switch (*C->I++) { + case VARIABLE_NONE: + /* simple variable declarator - just copy the specifier */ + if (!slang_type_specifier_copy(&var->type.specifier, &type->specifier)) + RETURN0; + break; + case VARIABLE_INITIALIZER: + /* initialized variable - copy the specifier and parse the expression */ + if (0 && type->array_len >= 0) { + /* The type was something like "float[4]" */ + convert_to_array(C, var, &type->specifier); + var->array_len = type->array_len; + } + else { + if (!slang_type_specifier_copy(&var->type.specifier, &type->specifier)) + RETURN0; + } + var->initializer = + (slang_operation *) _slang_alloc(sizeof(slang_operation)); + if (var->initializer == NULL) { + slang_info_log_memory(C->L); + RETURN0; + } + if (!slang_operation_construct(var->initializer)) { + _slang_free(var->initializer); + var->initializer = NULL; + slang_info_log_memory(C->L); + RETURN0; + } + if (!parse_expression(C, O, var->initializer)) + RETURN0; + break; + case VARIABLE_ARRAY_UNKNOWN: + /* unsized array - mark it as array and copy the specifier to + * the array element + */ + if (type->array_len >= 0) { + slang_info_log_error(C->L, "multi-dimensional arrays not allowed"); + RETURN0; + } + if (!convert_to_array(C, var, &type->specifier)) + return GL_FALSE; + break; + case VARIABLE_ARRAY_EXPLICIT: + if (type->array_len >= 0) { + /* the user is trying to do something like: float[2] x[3]; */ + slang_info_log_error(C->L, "multi-dimensional arrays not allowed"); + RETURN0; + } + if (!convert_to_array(C, var, &type->specifier)) + return GL_FALSE; + if (!parse_array_len(C, O, &var->array_len)) + return GL_FALSE; + break; + default: + RETURN0; + } + + /* allocate global address space for a variable with a known size */ + if (C->global_scope + && !(var->type.specifier.type == SLANG_SPEC_ARRAY + && var->array_len == 0)) { + if (!calculate_var_size(C, O, var)) + return GL_FALSE; + } + + /* emit code for global var decl */ + if (C->global_scope) { + slang_assemble_ctx A; + memset(&A, 0, sizeof(slang_assemble_ctx)); + A.atoms = C->atoms; + A.space.funcs = O->funs; + A.space.structs = O->structs; + A.space.vars = O->vars; + A.program = O->program; + A.pragmas = O->pragmas; + A.vartable = O->vartable; + A.log = C->L; + A.curFuncEndLabel = NULL; + A.EmitContReturn = ctx->Shader.EmitContReturn; + if (!_slang_codegen_global_variable(&A, var, C->type)) + RETURN0; + } + + /* initialize global variable */ + if (C->global_scope) { + if (var->initializer != NULL) { + slang_assemble_ctx A; + memset(&A, 0, sizeof(slang_assemble_ctx)); + A.atoms = C->atoms; + A.space.funcs = O->funs; + A.space.structs = O->structs; + A.space.vars = O->vars; + if (!initialize_global(&A, var)) + RETURN0; + } + } + return 1; +} + +/** + * Parse a list of variable declarations. Each variable may have an + * initializer. + */ +static int +parse_init_declarator_list(slang_parse_ctx * C, slang_output_ctx * O) +{ + slang_fully_specified_type type; + + /* parse the fully specified type, common to all declarators */ + if (!slang_fully_specified_type_construct(&type)) + RETURN0; + if (!parse_fully_specified_type(C, O, &type)) { + slang_fully_specified_type_destruct(&type); + RETURN0; + } + + /* parse declarators, pass-in the parsed type */ + do { + if (!parse_init_declarator(C, O, &type)) { + slang_fully_specified_type_destruct(&type); + RETURN0; + } + } + while (*C->I++ == DECLARATOR_NEXT); + + slang_fully_specified_type_destruct(&type); + return 1; +} + + +/** + * Parse a function definition or declaration. + * \param C parsing context + * \param O output context + * \param definition if non-zero expect a definition, else a declaration + * \param parsed_func_ret returns the parsed function + * \return GL_TRUE if success, GL_FALSE if failure + */ +static GLboolean +parse_function(slang_parse_ctx * C, slang_output_ctx * O, int definition, + slang_function ** parsed_func_ret) +{ + slang_function parsed_func, *found_func; + + /* parse function definition/declaration */ + if (!slang_function_construct(&parsed_func)) + return GL_FALSE; + if (definition) { + if (!parse_function_definition(C, O, &parsed_func)) { + slang_function_destruct(&parsed_func); + return GL_FALSE; + } + } + else { + if (!parse_function_prototype(C, O, &parsed_func)) { + slang_function_destruct(&parsed_func); + return GL_FALSE; + } + } + + /* find a function with a prototype matching the parsed one - only + * the current scope is being searched to allow built-in function + * overriding + */ + found_func = slang_function_scope_find(O->funs, &parsed_func, 0); + if (found_func == NULL) { + /* New function, add it to the function list */ + O->funs->functions = + (slang_function *) _slang_realloc(O->funs->functions, + O->funs->num_functions + * sizeof(slang_function), + (O->funs->num_functions + 1) + * sizeof(slang_function)); + if (O->funs->functions == NULL) { + /* Make sure that there are no functions marked, as the + * allocation is currently NULL, in order to avoid + * a potental segfault as we clean up later. + */ + O->funs->num_functions = 0; + + slang_info_log_memory(C->L); + slang_function_destruct(&parsed_func); + return GL_FALSE; + } + O->funs->functions[O->funs->num_functions] = parsed_func; + O->funs->num_functions++; + + /* return the newly parsed function */ + *parsed_func_ret = &O->funs->functions[O->funs->num_functions - 1]; + } + else { + /* previously defined or declared */ + /* TODO: check function return type qualifiers and specifiers */ + if (definition) { + if (found_func->body != NULL) { + slang_info_log_error(C->L, "%s: function already has a body.", + slang_atom_pool_id(C->atoms, + parsed_func.header. + a_name)); + slang_function_destruct(&parsed_func); + return GL_FALSE; + } + + /* destroy the existing function declaration and replace it + * with the new one + */ + slang_function_destruct(found_func); + *found_func = parsed_func; + } + else { + /* another declaration of the same function prototype - ignore it */ + slang_function_destruct(&parsed_func); + } + + /* return the found function */ + *parsed_func_ret = found_func; + } + + return GL_TRUE; +} + +/* declaration */ +#define DECLARATION_FUNCTION_PROTOTYPE 1 +#define DECLARATION_INIT_DECLARATOR_LIST 2 + +static int +parse_declaration(slang_parse_ctx * C, slang_output_ctx * O) +{ + switch (*C->I++) { + case DECLARATION_INIT_DECLARATOR_LIST: + if (!parse_init_declarator_list(C, O)) + RETURN0; + break; + case DECLARATION_FUNCTION_PROTOTYPE: + { + slang_function *dummy_func; + + if (!parse_function(C, O, 0, &dummy_func)) + RETURN0; + } + break; + default: + RETURN0; + } + return 1; +} + +static int +parse_default_precision(slang_parse_ctx * C, slang_output_ctx * O) +{ + int precision, type; + + if (!O->allow_precision) { + slang_info_log_error(C->L, "syntax error at \"precision\""); + RETURN0; + } + + precision = *C->I++; + switch (precision) { + case PRECISION_LOW: + case PRECISION_MEDIUM: + case PRECISION_HIGH: + /* OK */ + break; + default: + _mesa_problem(NULL, "unexpected precision %d at %s:%d\n", + precision, __FILE__, __LINE__); + RETURN0; + } + + type = *C->I++; + switch (type) { + case TYPE_SPECIFIER_FLOAT: + case TYPE_SPECIFIER_INT: + case TYPE_SPECIFIER_SAMPLER1D: + case TYPE_SPECIFIER_SAMPLER2D: + case TYPE_SPECIFIER_SAMPLER3D: + case TYPE_SPECIFIER_SAMPLERCUBE: + case TYPE_SPECIFIER_SAMPLER1DSHADOW: + case TYPE_SPECIFIER_SAMPLER2DSHADOW: + case TYPE_SPECIFIER_SAMPLER2DRECT: + case TYPE_SPECIFIER_SAMPLER2DRECTSHADOW: + /* OK */ + break; + default: + _mesa_problem(NULL, "unexpected type %d at %s:%d\n", + type, __FILE__, __LINE__); + RETURN0; + } + + assert(type < TYPE_SPECIFIER_COUNT); + O->default_precision[type] = precision; + + return 1; +} + + +/** + * Initialize the default precision for all types. + * XXX this info isn't used yet. + */ +static void +init_default_precision(slang_output_ctx *O, slang_unit_type type) +{ + GLuint i; + for (i = 0; i < TYPE_SPECIFIER_COUNT; i++) { +#if FEATURE_es2_glsl + O->default_precision[i] = PRECISION_LOW; +#else + O->default_precision[i] = PRECISION_HIGH; +#endif + } + + if (type == SLANG_UNIT_VERTEX_SHADER) { + O->default_precision[TYPE_SPECIFIER_FLOAT] = PRECISION_HIGH; + O->default_precision[TYPE_SPECIFIER_INT] = PRECISION_HIGH; + } + else { + O->default_precision[TYPE_SPECIFIER_INT] = PRECISION_MEDIUM; + } +} + + +static int +parse_invariant(slang_parse_ctx * C, slang_output_ctx * O) +{ + if (O->allow_invariant) { + slang_atom *a = parse_identifier(C); + /* XXX not doing anything with this var yet */ + /*printf("ID: %s\n", (char*) a);*/ + return a ? 1 : 0; + } + else { + slang_info_log_error(C->L, "syntax error at \"invariant\""); + RETURN0; + } +} + + +/* external declaration or default precision specifier */ +#define EXTERNAL_NULL 0 +#define EXTERNAL_FUNCTION_DEFINITION 1 +#define EXTERNAL_DECLARATION 2 +#define DEFAULT_PRECISION 3 +#define INVARIANT_STMT 4 + + +static GLboolean +parse_code_unit(slang_parse_ctx * C, slang_code_unit * unit, + struct gl_shader *shader) +{ + GET_CURRENT_CONTEXT(ctx); + slang_output_ctx o; + GLboolean success; + GLuint maxRegs; + slang_function *mainFunc = NULL; + + if (unit->type == SLANG_UNIT_FRAGMENT_BUILTIN || + unit->type == SLANG_UNIT_FRAGMENT_SHADER) { + maxRegs = ctx->Const.FragmentProgram.MaxTemps; + } + else { + assert(unit->type == SLANG_UNIT_VERTEX_BUILTIN || + unit->type == SLANG_UNIT_VERTEX_SHADER); + maxRegs = ctx->Const.VertexProgram.MaxTemps; + } + + /* setup output context */ + o.funs = &unit->funs; + o.structs = &unit->structs; + o.vars = &unit->vars; + o.program = shader ? shader->Program : NULL; + o.pragmas = shader ? &shader->Pragmas : NULL; + o.vartable = _slang_new_var_table(maxRegs); + _slang_push_var_table(o.vartable); + + /* allow 'invariant' keyword? */ +#if FEATURE_es2_glsl + o.allow_invariant = GL_TRUE; +#else + o.allow_invariant = (C->version >= 120) ? GL_TRUE : GL_FALSE; +#endif + + /* allow 'centroid' keyword? */ + o.allow_centroid = (C->version >= 120) ? GL_TRUE : GL_FALSE; + + /* allow 'lowp/mediump/highp' keywords? */ +#if FEATURE_es2_glsl + o.allow_precision = GL_TRUE; +#else + o.allow_precision = (C->version >= 120) ? GL_TRUE : GL_FALSE; +#endif + init_default_precision(&o, unit->type); + + /* allow 'float[]' keyword? */ + o.allow_array_types = (C->version >= 120) ? GL_TRUE : GL_FALSE; + + /* parse individual functions and declarations */ + while (*C->I != EXTERNAL_NULL) { + switch (*C->I++) { + case EXTERNAL_FUNCTION_DEFINITION: + { + slang_function *func; + success = parse_function(C, &o, 1, &func); + if (success && + _mesa_strcmp((char *) func->header.a_name, "main") == 0) { + /* found main() */ + mainFunc = func; + } + } + break; + case EXTERNAL_DECLARATION: + success = parse_declaration(C, &o); + break; + case DEFAULT_PRECISION: + success = parse_default_precision(C, &o); + break; + case INVARIANT_STMT: + success = parse_invariant(C, &o); + break; + default: + success = GL_FALSE; + } + + if (!success) { + /* xxx free codegen */ + _slang_pop_var_table(o.vartable); + return GL_FALSE; + } + } + C->I++; + + if (mainFunc) { + /* assemble (generate code) for main() */ + slang_assemble_ctx A; + memset(&A, 0, sizeof(slang_assemble_ctx)); + A.atoms = C->atoms; + A.space.funcs = o.funs; + A.space.structs = o.structs; + A.space.vars = o.vars; + A.program = o.program; + A.pragmas = &shader->Pragmas; + A.vartable = o.vartable; + A.EmitContReturn = ctx->Shader.EmitContReturn; + A.log = C->L; + + /* main() takes no parameters */ + if (mainFunc->param_count > 0) { + slang_info_log_error(A.log, "main() takes no arguments"); + return GL_FALSE; + } + + _slang_codegen_function(&A, mainFunc); + + shader->Main = GL_TRUE; /* this shader defines main() */ + + shader->UnresolvedRefs = A.UnresolvedRefs; + } + + _slang_pop_var_table(o.vartable); + _slang_delete_var_table(o.vartable); + + return GL_TRUE; +} + +static GLboolean +compile_binary(const byte * prod, slang_code_unit * unit, + GLuint version, + slang_unit_type type, slang_info_log * infolog, + slang_code_unit * builtin, slang_code_unit * downlink, + struct gl_shader *shader) +{ + slang_parse_ctx C; + + unit->type = type; + + /* setup parse context */ + C.I = prod; + C.L = infolog; + C.parsing_builtin = (builtin == NULL); + C.global_scope = GL_TRUE; + C.atoms = &unit->object->atompool; + C.type = type; + C.version = version; + + if (!check_revision(&C)) + return GL_FALSE; + + if (downlink != NULL) { + unit->vars.outer_scope = &downlink->vars; + unit->funs.outer_scope = &downlink->funs; + unit->structs.outer_scope = &downlink->structs; + } + + /* parse translation unit */ + return parse_code_unit(&C, unit, shader); +} + +static GLboolean +compile_with_grammar(grammar id, const char *source, slang_code_unit * unit, + slang_unit_type type, slang_info_log * infolog, + slang_code_unit * builtin, + struct gl_shader *shader, + const struct gl_extensions *extensions, + struct gl_sl_pragmas *pragmas) +{ + byte *prod; + GLuint size, start, version; + slang_string preprocessed; + GLuint maxVersion; + +#if FEATURE_ARB_shading_language_120 + maxVersion = 120; +#elif FEATURE_es2_glsl + maxVersion = 100; +#else + maxVersion = 110; +#endif + + /* First retrieve the version number. */ + if (!_slang_preprocess_version(source, &version, &start, infolog)) + return GL_FALSE; + + if (version > maxVersion) { + slang_info_log_error(infolog, + "language version %.2f is not supported.", + version * 0.01); + return GL_FALSE; + } + + /* Now preprocess the source string. */ + slang_string_init(&preprocessed); + if (!_slang_preprocess_directives(&preprocessed, &source[start], + infolog, extensions, pragmas)) { + slang_string_free(&preprocessed); + slang_info_log_error(infolog, "failed to preprocess the source."); + return GL_FALSE; + } + + /* Finally check the syntax and generate its binary representation. */ + if (!grammar_fast_check(id, + (const byte *) (slang_string_cstr(&preprocessed)), + &prod, &size, 65536)) { + char buf[1024]; + GLint pos; + + slang_string_free(&preprocessed); + grammar_get_last_error((byte *) (buf), sizeof(buf), &pos); + slang_info_log_error(infolog, buf); + /* syntax error (possibly in library code) */ +#if 0 + { + int line, col; + char *s; + s = (char *) _mesa_find_line_column((const GLubyte *) source, + (const GLubyte *) source + pos, + &line, &col); + printf("Error on line %d, col %d: %s\n", line, col, s); + } +#endif + return GL_FALSE; + } + slang_string_free(&preprocessed); + + /* Syntax is okay - translate it to internal representation. */ + if (!compile_binary(prod, unit, version, type, infolog, builtin, + &builtin[SLANG_BUILTIN_TOTAL - 1], + shader)) { + grammar_alloc_free(prod); + return GL_FALSE; + } + grammar_alloc_free(prod); + return GL_TRUE; +} + +LONGSTRING static const char *slang_shader_syn = +#include "library/slang_shader_syn.h" + ; + +static const byte slang_core_gc[] = { +#include "library/slang_core_gc.h" +}; + +static const byte slang_120_core_gc[] = { +#include "library/slang_120_core_gc.h" +}; + +static const byte slang_120_fragment_gc[] = { +#include "library/slang_builtin_120_fragment_gc.h" +}; + +static const byte slang_common_builtin_gc[] = { +#include "library/slang_common_builtin_gc.h" +}; + +static const byte slang_fragment_builtin_gc[] = { +#include "library/slang_fragment_builtin_gc.h" +}; + +static const byte slang_vertex_builtin_gc[] = { +#include "library/slang_vertex_builtin_gc.h" +}; + +static GLboolean +compile_object(grammar * id, const char *source, slang_code_object * object, + slang_unit_type type, slang_info_log * infolog, + struct gl_shader *shader, + const struct gl_extensions *extensions, + struct gl_sl_pragmas *pragmas) +{ + slang_code_unit *builtins = NULL; + GLuint base_version = 110; + + /* load GLSL grammar */ + *id = grammar_load_from_text((const byte *) (slang_shader_syn)); + if (*id == 0) { + byte buf[1024]; + int pos; + + grammar_get_last_error(buf, 1024, &pos); + slang_info_log_error(infolog, (const char *) (buf)); + return GL_FALSE; + } + + /* set shader type - the syntax is slightly different for different shaders */ + if (type == SLANG_UNIT_FRAGMENT_SHADER + || type == SLANG_UNIT_FRAGMENT_BUILTIN) + grammar_set_reg8(*id, (const byte *) "shader_type", 1); + else + grammar_set_reg8(*id, (const byte *) "shader_type", 2); + + /* enable language extensions */ + grammar_set_reg8(*id, (const byte *) "parsing_builtin", 1); + + /* if parsing user-specified shader, load built-in library */ + if (type == SLANG_UNIT_FRAGMENT_SHADER || type == SLANG_UNIT_VERTEX_SHADER) { + /* compile core functionality first */ + if (!compile_binary(slang_core_gc, + &object->builtin[SLANG_BUILTIN_CORE], + base_version, + SLANG_UNIT_FRAGMENT_BUILTIN, infolog, + NULL, NULL, NULL)) + return GL_FALSE; + +#if FEATURE_ARB_shading_language_120 + if (!compile_binary(slang_120_core_gc, + &object->builtin[SLANG_BUILTIN_120_CORE], + 120, + SLANG_UNIT_FRAGMENT_BUILTIN, infolog, + NULL, &object->builtin[SLANG_BUILTIN_CORE], NULL)) + return GL_FALSE; +#endif + + /* compile common functions and variables, link to core */ + if (!compile_binary(slang_common_builtin_gc, + &object->builtin[SLANG_BUILTIN_COMMON], +#if FEATURE_ARB_shading_language_120 + 120, +#else + base_version, +#endif + SLANG_UNIT_FRAGMENT_BUILTIN, infolog, NULL, +#if FEATURE_ARB_shading_language_120 + &object->builtin[SLANG_BUILTIN_120_CORE], +#else + &object->builtin[SLANG_BUILTIN_CORE], +#endif + NULL)) + return GL_FALSE; + + /* compile target-specific functions and variables, link to common */ + if (type == SLANG_UNIT_FRAGMENT_SHADER) { + if (!compile_binary(slang_fragment_builtin_gc, + &object->builtin[SLANG_BUILTIN_TARGET], + base_version, + SLANG_UNIT_FRAGMENT_BUILTIN, infolog, NULL, + &object->builtin[SLANG_BUILTIN_COMMON], NULL)) + return GL_FALSE; +#if FEATURE_ARB_shading_language_120 + if (!compile_binary(slang_120_fragment_gc, + &object->builtin[SLANG_BUILTIN_TARGET], + 120, + SLANG_UNIT_FRAGMENT_BUILTIN, infolog, NULL, + &object->builtin[SLANG_BUILTIN_COMMON], NULL)) + return GL_FALSE; +#endif + } + else if (type == SLANG_UNIT_VERTEX_SHADER) { + if (!compile_binary(slang_vertex_builtin_gc, + &object->builtin[SLANG_BUILTIN_TARGET], + base_version, + SLANG_UNIT_VERTEX_BUILTIN, infolog, NULL, + &object->builtin[SLANG_BUILTIN_COMMON], NULL)) + return GL_FALSE; + } + + /* disable language extensions */ +#if NEW_SLANG /* allow-built-ins */ + grammar_set_reg8(*id, (const byte *) "parsing_builtin", 1); +#else + grammar_set_reg8(*id, (const byte *) "parsing_builtin", 0); +#endif + builtins = object->builtin; + } + + /* compile the actual shader - pass-in built-in library for external shader */ + return compile_with_grammar(*id, source, &object->unit, type, infolog, + builtins, shader, extensions, pragmas); +} + + +static GLboolean +compile_shader(GLcontext *ctx, slang_code_object * object, + slang_unit_type type, slang_info_log * infolog, + struct gl_shader *shader) +{ + GLboolean success; + grammar id = 0; + +#if 0 /* for debug */ + _mesa_printf("********* COMPILE SHADER ***********\n"); + _mesa_printf("%s\n", shader->Source); + _mesa_printf("************************************\n"); +#endif + + assert(shader->Program); + + _slang_code_object_dtr(object); + _slang_code_object_ctr(object); + + success = compile_object(&id, shader->Source, object, type, infolog, shader, + &ctx->Extensions, &shader->Pragmas); + if (id != 0) + grammar_destroy(id); + if (!success) + return GL_FALSE; + + return GL_TRUE; +} + + + +GLboolean +_slang_compile(GLcontext *ctx, struct gl_shader *shader) +{ + GLboolean success; + slang_info_log info_log; + slang_code_object obj; + slang_unit_type type; + + if (shader->Type == GL_VERTEX_SHADER) { + type = SLANG_UNIT_VERTEX_SHADER; + } + else { + assert(shader->Type == GL_FRAGMENT_SHADER); + type = SLANG_UNIT_FRAGMENT_SHADER; + } + + if (!shader->Source) + return GL_FALSE; + + ctx->Shader.MemPool = _slang_new_mempool(1024*1024); + + shader->Main = GL_FALSE; + + if (!shader->Program) { + GLenum progTarget; + if (shader->Type == GL_VERTEX_SHADER) + progTarget = GL_VERTEX_PROGRAM_ARB; + else + progTarget = GL_FRAGMENT_PROGRAM_ARB; + shader->Program = ctx->Driver.NewProgram(ctx, progTarget, 1); + shader->Program->Parameters = _mesa_new_parameter_list(); + shader->Program->Varying = _mesa_new_parameter_list(); + shader->Program->Attributes = _mesa_new_parameter_list(); + } + + slang_info_log_construct(&info_log); + _slang_code_object_ctr(&obj); + + success = compile_shader(ctx, &obj, type, &info_log, shader); + + /* free shader's prev info log */ + if (shader->InfoLog) { + _mesa_free(shader->InfoLog); + shader->InfoLog = NULL; + } + + if (info_log.text) { + /* copy info-log string to shader object */ + shader->InfoLog = _mesa_strdup(info_log.text); + } + + if (info_log.error_flag) { + success = GL_FALSE; + } + + slang_info_log_destruct(&info_log); + _slang_code_object_dtr(&obj); + + _slang_delete_mempool((slang_mempool *) ctx->Shader.MemPool); + ctx->Shader.MemPool = NULL; + + /* remove any reads of output registers */ +#if 0 + printf("Pre-remove output reads:\n"); + _mesa_print_program(shader->Program); +#endif + _mesa_remove_output_reads(shader->Program, PROGRAM_OUTPUT); + if (shader->Type == GL_VERTEX_SHADER) { + /* and remove writes to varying vars in vertex programs */ + _mesa_remove_output_reads(shader->Program, PROGRAM_VARYING); + } +#if 0 + printf("Post-remove output reads:\n"); + _mesa_print_program(shader->Program); +#endif + + shader->CompileStatus = success; + + if (success) { + if (shader->Pragmas.Optimize && + (ctx->Shader.Flags & GLSL_NO_OPT) == 0) { + _mesa_optimize_program(ctx, shader->Program); + } + } + + if (ctx->Shader.Flags & GLSL_LOG) { + _mesa_write_shader_to_file(shader); + } + + return success; +} + diff --git a/mesalib/src/mesa/shader/slang/slang_compile.h b/mesalib/src/mesa/shader/slang/slang_compile.h new file mode 100644 index 000000000..7fb549d33 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_compile.h @@ -0,0 +1,100 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 2005-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#if !defined SLANG_COMPILE_H +#define SLANG_COMPILE_H + +#include "main/imports.h" +#include "main/mtypes.h" +#include "slang_typeinfo.h" +#include "slang_compile_variable.h" +#include "slang_compile_struct.h" +#include "slang_compile_operation.h" +#include "slang_compile_function.h" + +#if defined __cplusplus +extern "C" { +#endif + +typedef struct slang_name_space_ +{ + struct slang_function_scope_ *funcs; + struct slang_struct_scope_ *structs; + struct slang_variable_scope_ *vars; +} slang_name_space; + +typedef enum slang_unit_type_ +{ + SLANG_UNIT_FRAGMENT_SHADER, + SLANG_UNIT_VERTEX_SHADER, + SLANG_UNIT_FRAGMENT_BUILTIN, + SLANG_UNIT_VERTEX_BUILTIN +} slang_unit_type; + + +typedef struct slang_code_unit_ +{ + slang_variable_scope vars; + slang_function_scope funs; + slang_struct_scope structs; + slang_unit_type type; + struct slang_code_object_ *object; +} slang_code_unit; + + +extern GLvoid +_slang_code_unit_ctr (slang_code_unit *, struct slang_code_object_ *); + +extern GLvoid +_slang_code_unit_dtr (slang_code_unit *); + +#define SLANG_BUILTIN_CORE 0 +#define SLANG_BUILTIN_120_CORE 1 +#define SLANG_BUILTIN_COMMON 2 +#define SLANG_BUILTIN_TARGET 3 + +#define SLANG_BUILTIN_TOTAL 4 + +typedef struct slang_code_object_ +{ + slang_code_unit builtin[SLANG_BUILTIN_TOTAL]; + slang_code_unit unit; + slang_atom_pool atompool; +} slang_code_object; + +extern GLvoid +_slang_code_object_ctr (slang_code_object *); + +extern GLvoid +_slang_code_object_dtr (slang_code_object *); + +extern GLboolean +_slang_compile (GLcontext *ctx, struct gl_shader *shader); + +#ifdef __cplusplus +} +#endif + +#endif + diff --git a/mesalib/src/mesa/shader/slang/slang_compile_function.c b/mesalib/src/mesa/shader/slang/slang_compile_function.c new file mode 100644 index 000000000..4dd885176 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_compile_function.c @@ -0,0 +1,262 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 2005-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_compile_function.c + * slang front-end compiler + * \author Michal Krol + */ + +#include "main/imports.h" +#include "slang_compile.h" +#include "slang_mem.h" + + +int +slang_function_construct(slang_function * func) +{ + func->kind = SLANG_FUNC_ORDINARY; + if (!slang_variable_construct(&func->header)) + return 0; + + func->parameters = (slang_variable_scope *) + _slang_alloc(sizeof(slang_variable_scope)); + if (func->parameters == NULL) { + slang_variable_destruct(&func->header); + return 0; + } + + _slang_variable_scope_ctr(func->parameters); + func->param_count = 0; + func->body = NULL; + return 1; +} + +void +slang_function_destruct(slang_function * func) +{ + slang_variable_destruct(&func->header); + slang_variable_scope_destruct(func->parameters); + _slang_free(func->parameters); + if (func->body != NULL) { + slang_operation_destruct(func->body); + _slang_free(func->body); + } +} + + +slang_function * +slang_function_new(slang_function_kind kind) +{ + slang_function *fun = (slang_function *) + _slang_alloc(sizeof(slang_function)); + if (fun) { + slang_function_construct(fun); + fun->kind = kind; + } + return fun; +} + + +/* + * slang_function_scope + */ + +GLvoid +_slang_function_scope_ctr(slang_function_scope * self) +{ + self->functions = NULL; + self->num_functions = 0; + self->outer_scope = NULL; +} + +void +slang_function_scope_destruct(slang_function_scope * scope) +{ + unsigned int i; + + for (i = 0; i < scope->num_functions; i++) + slang_function_destruct(scope->functions + i); + _slang_free(scope->functions); +} + + +/** + * Does this function have a non-void return value? + */ +GLboolean +_slang_function_has_return_value(const slang_function *fun) +{ + return fun->header.type.specifier.type != SLANG_SPEC_VOID; +} + + +/** + * Search a list of functions for a particular function by name. + * \param funcs the list of functions to search + * \param a_name the name to search for + * \param all_scopes if non-zero, search containing scopes too. + * \return pointer to found function, or NULL. + */ +int +slang_function_scope_find_by_name(slang_function_scope * funcs, + slang_atom a_name, int all_scopes) +{ + unsigned int i; + + for (i = 0; i < funcs->num_functions; i++) + if (a_name == funcs->functions[i].header.a_name) + return 1; + if (all_scopes && funcs->outer_scope != NULL) + return slang_function_scope_find_by_name(funcs->outer_scope, a_name, 1); + return 0; +} + + +/** + * Search a list of functions for a particular function (for implementing + * function calls. Matching is done by first comparing the function's name, + * then the function's parameter list. + * + * \param funcs the list of functions to search + * \param fun the function to search for + * \param all_scopes if non-zero, search containing scopes too. + * \return pointer to found function, or NULL. + */ +slang_function * +slang_function_scope_find(slang_function_scope * funcs, slang_function * fun, + int all_scopes) +{ + unsigned int i; + + for (i = 0; i < funcs->num_functions; i++) { + slang_function *f = &funcs->functions[i]; + const GLuint haveRetValue = 0; +#if 0 + = (f->header.type.specifier.type != SLANG_SPEC_VOID); +#endif + unsigned int j; + + /* + printf("Compare name %s to %s (ret %u, %d, %d)\n", + (char *) fun->header.a_name, (char *) f->header.a_name, + haveRetValue, + fun->param_count, f->param_count); + */ + + if (fun->header.a_name != f->header.a_name) + continue; + if (fun->param_count != f->param_count) + continue; + for (j = haveRetValue; j < fun->param_count; j++) { + if (!slang_type_specifier_equal + (&fun->parameters->variables[j]->type.specifier, + &f->parameters->variables[j]->type.specifier)) + break; + } + if (j == fun->param_count) { + /* + printf("Found match\n"); + */ + return f; + } + } + /* + printf("Not found\n"); + */ + if (all_scopes && funcs->outer_scope != NULL) + return slang_function_scope_find(funcs->outer_scope, fun, 1); + return NULL; +} + + +/** + * Lookup a function according to name and parameter count/types. + */ +slang_function * +_slang_function_locate(const slang_function_scope * funcs, slang_atom a_name, + slang_operation * args, GLuint num_args, + const slang_name_space * space, slang_atom_pool * atoms, + slang_info_log *log, GLboolean *error) +{ + slang_typeinfo arg_ti[100]; + GLuint i; + + *error = GL_FALSE; + + /* determine type of each argument */ + assert(num_args < 100); + for (i = 0; i < num_args; i++) { + if (!slang_typeinfo_construct(&arg_ti[i])) + return NULL; + if (!_slang_typeof_operation(&args[i], space, &arg_ti[i], atoms, log)) { + return NULL; + } + } + + /* loop over function scopes */ + while (funcs) { + + /* look for function with matching name and argument/param types */ + for (i = 0; i < funcs->num_functions; i++) { + slang_function *f = &funcs->functions[i]; + const GLuint haveRetValue = _slang_function_has_return_value(f); + GLuint j; + + if (a_name != f->header.a_name) + continue; + if (f->param_count - haveRetValue != num_args) + continue; + + /* compare parameter / argument types */ + for (j = 0; j < num_args; j++) { + if (!slang_type_specifier_compatible(&arg_ti[j].spec, + &f->parameters->variables[j]->type.specifier)) { + /* param/arg types don't match */ + break; + } + + /* "out" and "inout" formal parameter requires the actual + * argument to be an l-value. + */ + if (!arg_ti[j].can_be_referenced && + (f->parameters->variables[j]->type.qualifier == SLANG_QUAL_OUT || + f->parameters->variables[j]->type.qualifier == SLANG_QUAL_INOUT)) { + /* param is not an lvalue! */ + *error = GL_TRUE; + return NULL; + } + } + + if (j == num_args) { + /* name and args match! */ + return f; + } + } + + funcs = funcs->outer_scope; + } + + return NULL; +} diff --git a/mesalib/src/mesa/shader/slang/slang_compile_function.h b/mesalib/src/mesa/shader/slang/slang_compile_function.h new file mode 100644 index 000000000..a5445ec25 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_compile_function.h @@ -0,0 +1,92 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.2 + * + * Copyright (C) 2005-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef SLANG_COMPILE_FUNCTION_H +#define SLANG_COMPILE_FUNCTION_H + + +/** + * Types of functions. + */ +typedef enum slang_function_kind_ +{ + SLANG_FUNC_ORDINARY, + SLANG_FUNC_CONSTRUCTOR, + SLANG_FUNC_OPERATOR +} slang_function_kind; + + +/** + * Description of a compiled shader function. + */ +typedef struct slang_function_ +{ + slang_function_kind kind; + slang_variable header; /**< The function's name and return type */ + slang_variable_scope *parameters; /**< formal parameters AND local vars */ + unsigned int param_count; /**< number of formal params (no locals) */ + slang_operation *body; /**< The instruction tree */ +} slang_function; + +extern int slang_function_construct(slang_function *); +extern void slang_function_destruct(slang_function *); +extern slang_function *slang_function_new(slang_function_kind kind); + +extern GLboolean +_slang_function_has_return_value(const slang_function *fun); + + +/** + * Basically, a list of compiled functions. + */ +typedef struct slang_function_scope_ +{ + slang_function *functions; + GLuint num_functions; + struct slang_function_scope_ *outer_scope; +} slang_function_scope; + + +extern GLvoid +_slang_function_scope_ctr(slang_function_scope *); + +extern void +slang_function_scope_destruct(slang_function_scope *); + +extern int +slang_function_scope_find_by_name(slang_function_scope *, slang_atom, int); + +extern slang_function * +slang_function_scope_find(slang_function_scope *, slang_function *, int); + +extern struct slang_function_ * +_slang_function_locate(const struct slang_function_scope_ *funcs, + slang_atom name, struct slang_operation_ *params, + GLuint num_params, + const struct slang_name_space_ *space, + slang_atom_pool *atoms, slang_info_log *log, + GLboolean *error); + + +#endif /* SLANG_COMPILE_FUNCTION_H */ diff --git a/mesalib/src/mesa/shader/slang/slang_compile_operation.c b/mesalib/src/mesa/shader/slang/slang_compile_operation.c new file mode 100644 index 000000000..3e2bdbc91 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_compile_operation.c @@ -0,0 +1,332 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.2 + * + * Copyright (C) 2005-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_compile_operation.c + * slang front-end compiler + * \author Michal Krol + */ + +#include "main/imports.h" +#include "slang_compile.h" +#include "slang_mem.h" + + +/** + * Init a slang_operation object + */ +GLboolean +slang_operation_construct(slang_operation * oper) +{ + oper->type = SLANG_OPER_NONE; + oper->children = NULL; + oper->num_children = 0; + oper->literal[0] = 0.0; + oper->literal_size = 1; + oper->array_constructor = GL_FALSE; + oper->a_id = SLANG_ATOM_NULL; + oper->locals = _slang_variable_scope_new(NULL); + if (oper->locals == NULL) + return GL_FALSE; + _slang_variable_scope_ctr(oper->locals); + oper->fun = NULL; + oper->var = NULL; + return GL_TRUE; +} + +void +slang_operation_destruct(slang_operation * oper) +{ + GLuint i; + + for (i = 0; i < oper->num_children; i++) + slang_operation_destruct(oper->children + i); + _slang_free(oper->children); + slang_variable_scope_destruct(oper->locals); + _slang_free(oper->locals); + oper->children = NULL; + oper->num_children = 0; + oper->locals = NULL; +} + + +/** + * Recursively traverse 'oper', replacing occurances of 'oldScope' with + * 'newScope' in the oper->locals->outer_scope field. + */ +void +slang_replace_scope(slang_operation *oper, + slang_variable_scope *oldScope, + slang_variable_scope *newScope) +{ + GLuint i; + + if (oper->locals != newScope && + oper->locals->outer_scope == oldScope) { + /* found. replace old w/ new */ + oper->locals->outer_scope = newScope; + } + + if (oper->type == SLANG_OPER_VARIABLE_DECL) { + /* search/replace in the initializer */ + slang_variable *var; + var = _slang_variable_locate(oper->locals, oper->a_id, GL_TRUE); + if (var && var->initializer) { + slang_replace_scope(var->initializer, oldScope, newScope); + } + } + + /* search/replace in children */ + for (i = 0; i < oper->num_children; i++) { + slang_replace_scope(&oper->children[i], oldScope, newScope); + } +} + + +/** + * Recursively copy a slang_operation node. + * \param x copy target + * \param y copy source + * \return GL_TRUE for success, GL_FALSE if failure + */ +GLboolean +slang_operation_copy(slang_operation * x, const slang_operation * y) +{ + slang_operation z; + GLuint i; + + if (!slang_operation_construct(&z)) + return GL_FALSE; + z.type = y->type; + if (y->num_children > 0) { + z.children = (slang_operation *) + _slang_alloc(y->num_children * sizeof(slang_operation)); + if (z.children == NULL) { + slang_operation_destruct(&z); + return GL_FALSE; + } + } + for (z.num_children = 0; z.num_children < y->num_children; + z.num_children++) { + if (!slang_operation_construct(&z.children[z.num_children])) { + slang_operation_destruct(&z); + return GL_FALSE; + } + } + for (i = 0; i < z.num_children; i++) { + if (!slang_operation_copy(&z.children[i], &y->children[i])) { + slang_operation_destruct(&z); + return GL_FALSE; + } + } + z.literal[0] = y->literal[0]; + z.literal[1] = y->literal[1]; + z.literal[2] = y->literal[2]; + z.literal[3] = y->literal[3]; + z.literal_size = y->literal_size; + assert(y->literal_size >= 1); + assert(y->literal_size <= 4); + z.a_id = y->a_id; + if (y->locals) { + if (!slang_variable_scope_copy(z.locals, y->locals)) { + slang_operation_destruct(&z); + return GL_FALSE; + } + } + + /* update scoping for children */ + for (i = 0; i < y->num_children; i++) { + if (y->children[i].locals && + y->children[i].locals->outer_scope == y->locals) { + z.children[i].locals->outer_scope = z.locals; + } + } + +#if 0 + z.var = y->var; + z.fun = y->fun; +#endif + slang_operation_destruct(x); + *x = z; + + /* If this operation declares a new scope, we need to make sure + * all children point to it, not the original operation's scope! + */ + if (x->type == SLANG_OPER_BLOCK_NEW_SCOPE || + x->type == SLANG_OPER_WHILE || + x->type == SLANG_OPER_FOR) { + slang_replace_scope(x, y->locals, x->locals); + } + + return GL_TRUE; +} + + +slang_operation * +slang_operation_new(GLuint count) +{ + slang_operation *ops + = (slang_operation *) _slang_alloc(count * sizeof(slang_operation)); + assert(count > 0); + if (ops) { + GLuint i; + for (i = 0; i < count; i++) + slang_operation_construct(ops + i); + } + return ops; +} + + +/** + * Delete operation and all children + */ +void +slang_operation_delete(slang_operation *oper) +{ + slang_operation_destruct(oper); + _slang_free(oper); +} + + +void +slang_operation_free_children(slang_operation *oper) +{ + GLuint i; + for (i = 0; i < slang_oper_num_children(oper); i++) { + slang_operation *child = slang_oper_child(oper, i); + slang_operation_destruct(child); + } + _slang_free(oper->children); + oper->children = NULL; + oper->num_children = 0; +} + + +slang_operation * +slang_operation_grow(GLuint *numChildren, slang_operation **children) +{ + slang_operation *ops; + + ops = (slang_operation *) + _slang_realloc(*children, + *numChildren * sizeof(slang_operation), + (*numChildren + 1) * sizeof(slang_operation)); + if (ops) { + slang_operation *newOp = ops + *numChildren; + if (!slang_operation_construct(newOp)) { + _slang_free(ops); + *children = NULL; + return NULL; + } + *children = ops; + (*numChildren)++; + return newOp; + } + return NULL; +} + +/** + * Insert a new slang_operation into an array. + * \param numElements pointer to current array size (in/out) + * \param array address of the array (in/out) + * \param pos position to insert new element + * \return pointer to the new operation/element + */ +slang_operation * +slang_operation_insert(GLuint *numElements, slang_operation **array, + GLuint pos) +{ + slang_operation *ops; + + assert(pos <= *numElements); + + ops = (slang_operation *) + _slang_alloc((*numElements + 1) * sizeof(slang_operation)); + if (ops) { + slang_operation *newOp; + newOp = ops + pos; + if (pos > 0) + _mesa_memcpy(ops, *array, pos * sizeof(slang_operation)); + if (pos < *numElements) + _mesa_memcpy(newOp + 1, (*array) + pos, + (*numElements - pos) * sizeof(slang_operation)); + + if (!slang_operation_construct(newOp)) { + _slang_free(ops); + *numElements = 0; + *array = NULL; + return NULL; + } + if (*array) + _slang_free(*array); + *array = ops; + (*numElements)++; + return newOp; + } + return NULL; +} + + +/** + * Add/insert new child into given node at given position. + * \return pointer to the new child node + */ +slang_operation * +slang_operation_insert_child(slang_operation *oper, GLuint pos) +{ + slang_operation *newOp; + + newOp = slang_operation_insert(&oper->num_children, + &oper->children, + pos); + if (newOp) { + newOp->locals->outer_scope = oper->locals; + } + + return newOp; +} + + +void +_slang_operation_swap(slang_operation *oper0, slang_operation *oper1) +{ + slang_operation tmp = *oper0; + *oper0 = *oper1; + *oper1 = tmp; +} + + +void +slang_operation_add_children(slang_operation *oper, GLuint num_children) +{ + GLuint i; + assert(oper->num_children == 0); + assert(oper->children == NULL); + oper->num_children = num_children; + oper->children = slang_operation_new(num_children); + for (i = 0; i < num_children; i++) { + oper->children[i].locals = _slang_variable_scope_new(oper->locals); + } +} + diff --git a/mesalib/src/mesa/shader/slang/slang_compile_operation.h b/mesalib/src/mesa/shader/slang/slang_compile_operation.h new file mode 100644 index 000000000..58f1edeed --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_compile_operation.h @@ -0,0 +1,226 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.2 + * + * Copyright (C) 2005-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef SLANG_COMPILE_OPERATION_H +#define SLANG_COMPILE_OPERATION_H + + +/** + * Types of slang operations. + * These are the types of the AST (abstract syntax tree) nodes. + * [foo] indicates a sub-tree or reference to another type of node + */ +typedef enum slang_operation_type_ +{ + SLANG_OPER_NONE, + SLANG_OPER_BLOCK_NO_NEW_SCOPE, /* "{" sequence "}" */ + SLANG_OPER_BLOCK_NEW_SCOPE, /* "{" sequence "}" */ + SLANG_OPER_VARIABLE_DECL, /* [type] [var] or [var] = [expr] */ + SLANG_OPER_ASM, + SLANG_OPER_BREAK, /* "break" statement */ + SLANG_OPER_CONTINUE, /* "continue" statement */ + SLANG_OPER_DISCARD, /* "discard" (kill fragment) statement */ + SLANG_OPER_RETURN, /* "return" [expr] */ + SLANG_OPER_RETURN_INLINED, /* "return" [expr] from inlined function */ + SLANG_OPER_LABEL, /* a jump target */ + SLANG_OPER_EXPRESSION, /* [expr] */ + SLANG_OPER_IF, /* "if" [0] then [1] else [2] */ + SLANG_OPER_WHILE, /* "while" [cond] [body] */ + SLANG_OPER_DO, /* "do" [body] "while" [cond] */ + SLANG_OPER_FOR, /* "for" [init] [while] [incr] [body] */ + SLANG_OPER_VOID, /* nop */ + SLANG_OPER_LITERAL_BOOL, /* "true" or "false" */ + SLANG_OPER_LITERAL_INT, /* integer literal */ + SLANG_OPER_LITERAL_FLOAT, /* float literal */ + SLANG_OPER_IDENTIFIER, /* var name, func name, etc */ + SLANG_OPER_SEQUENCE, /* [expr] "," [expr] "," etc */ + SLANG_OPER_ASSIGN, /* [var] "=" [expr] */ + SLANG_OPER_ADDASSIGN, /* [var] "+=" [expr] */ + SLANG_OPER_SUBASSIGN, /* [var] "-=" [expr] */ + SLANG_OPER_MULASSIGN, /* [var] "*=" [expr] */ + SLANG_OPER_DIVASSIGN, /* [var] "/=" [expr] */ + /*SLANG_OPER_MODASSIGN, */ + /*SLANG_OPER_LSHASSIGN, */ + /*SLANG_OPER_RSHASSIGN, */ + /*SLANG_OPER_ORASSIGN, */ + /*SLANG_OPER_XORASSIGN, */ + /*SLANG_OPER_ANDASSIGN, */ + SLANG_OPER_SELECT, /* [expr] "?" [expr] ":" [expr] */ + SLANG_OPER_LOGICALOR, /* [expr] "||" [expr] */ + SLANG_OPER_LOGICALXOR, /* [expr] "^^" [expr] */ + SLANG_OPER_LOGICALAND, /* [expr] "&&" [expr] */ + /*SLANG_OPER_BITOR, */ + /*SLANG_OPER_BITXOR, */ + /*SLANG_OPER_BITAND, */ + SLANG_OPER_EQUAL, /* [expr] "==" [expr] */ + SLANG_OPER_NOTEQUAL, /* [expr] "!=" [expr] */ + SLANG_OPER_LESS, /* [expr] "<" [expr] */ + SLANG_OPER_GREATER, /* [expr] ">" [expr] */ + SLANG_OPER_LESSEQUAL, /* [expr] "<=" [expr] */ + SLANG_OPER_GREATEREQUAL, /* [expr] ">=" [expr] */ + /*SLANG_OPER_LSHIFT, */ + /*SLANG_OPER_RSHIFT, */ + SLANG_OPER_ADD, /* [expr] "+" [expr] */ + SLANG_OPER_SUBTRACT, /* [expr] "-" [expr] */ + SLANG_OPER_MULTIPLY, /* [expr] "*" [expr] */ + SLANG_OPER_DIVIDE, /* [expr] "/" [expr] */ + /*SLANG_OPER_MODULUS, */ + SLANG_OPER_PREINCREMENT, /* "++" [var] */ + SLANG_OPER_PREDECREMENT, /* "--" [var] */ + SLANG_OPER_PLUS, /* "-" [expr] */ + SLANG_OPER_MINUS, /* "+" [expr] */ + /*SLANG_OPER_COMPLEMENT, */ + SLANG_OPER_NOT, /* "!" [expr] */ + SLANG_OPER_SUBSCRIPT, /* [expr] "[" [expr] "]" */ + SLANG_OPER_CALL, /* [func name] [param] [param] [...] */ + SLANG_OPER_NON_INLINED_CALL, /* a real function call */ + SLANG_OPER_METHOD, /* method call, such as v.length() */ + SLANG_OPER_FIELD, /* i.e.: ".next" or ".xzy" or ".xxx" etc */ + SLANG_OPER_POSTINCREMENT, /* [var] "++" */ + SLANG_OPER_POSTDECREMENT /* [var] "--" */ +} slang_operation_type; + + +/** + * A slang_operation is basically a compiled instruction (such as assignment, + * a while-loop, a conditional, a multiply, a function call, etc). + * The AST (abstract syntax tree) is built from these nodes. + * NOTE: This structure could have been implemented as a union of simpler + * structs which would correspond to the operation types above. + */ +typedef struct slang_operation_ +{ + slang_operation_type type; + struct slang_operation_ *children; + GLuint num_children; + GLfloat literal[4]; /**< Used for float, int and bool values */ + GLuint literal_size; /**< 1, 2, 3, or 4 */ + slang_atom a_id; /**< type: asm, identifier, call, field */ + slang_atom a_obj; /**< object in a method call */ + slang_variable_scope *locals; /**< local vars for scope */ + struct slang_function_ *fun; /**< If type == SLANG_OPER_CALL */ + struct slang_variable_ *var; /**< If type == slang_oper_identier */ + struct slang_label_ *label; /**< If type == SLANG_OPER_LABEL */ + /** If type==SLANG_OPER_CALL and we're calling an array constructor, + * for which there's no real function, we need to have a flag to + * indicate such. num_children indicates number of elements. + */ + GLboolean array_constructor; + double x; +} slang_operation; + + +extern GLboolean +slang_operation_construct(slang_operation *); + +extern void +slang_operation_destruct(slang_operation *); + +extern void +slang_replace_scope(slang_operation *oper, + slang_variable_scope *oldScope, + slang_variable_scope *newScope); + +extern GLboolean +slang_operation_copy(slang_operation *, const slang_operation *); + +extern slang_operation * +slang_operation_new(GLuint count); + +extern void +slang_operation_delete(slang_operation *oper); + +extern void +slang_operation_free_children(slang_operation *oper); + +extern slang_operation * +slang_operation_grow(GLuint *numChildren, slang_operation **children); + +extern slang_operation * +slang_operation_insert(GLuint *numChildren, slang_operation **children, + GLuint pos); + +extern slang_operation * +slang_operation_insert_child(slang_operation *oper, GLuint pos); + +extern void +_slang_operation_swap(slang_operation *oper0, slang_operation *oper1); + + +extern void +slang_operation_add_children(slang_operation *oper, GLuint num_children); + + +/** Return number of children of given node */ +static INLINE GLuint +slang_oper_num_children(const slang_operation *oper) +{ + return oper->num_children; +} + +/** Return child of given operation node */ +static INLINE slang_operation * +slang_oper_child(slang_operation *oper, GLuint child) +{ + assert(child < oper->num_children); + return &oper->children[child]; +} + + +/** Return child of given operation node, const version */ +static INLINE const slang_operation * +slang_oper_child_const(const slang_operation *oper, GLuint child) +{ + assert(child < oper->num_children); + return &oper->children[child]; +} + + +/** Init oper to a boolean literal. */ +static INLINE void +slang_operation_literal_bool(slang_operation *oper, GLboolean value) +{ + oper->type = SLANG_OPER_LITERAL_BOOL; + oper->literal[0] = + oper->literal[1] = + oper->literal[2] = + oper->literal[3] = (float) value; + oper->literal_size = 1; +} + + +/** Init oper to an int literal. */ +static INLINE void +slang_operation_literal_int(slang_operation *oper, GLint value) +{ + oper->type = SLANG_OPER_LITERAL_INT; + oper->literal[0] = + oper->literal[1] = + oper->literal[2] = + oper->literal[3] = (float) value; + oper->literal_size = 1; +} + + +#endif /* SLANG_COMPILE_OPERATION_H */ diff --git a/mesalib/src/mesa/shader/slang/slang_compile_struct.c b/mesalib/src/mesa/shader/slang/slang_compile_struct.c new file mode 100644 index 000000000..e6c38730d --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_compile_struct.c @@ -0,0 +1,174 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.3 + * + * Copyright (C) 2005-2007 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_compile_struct.c + * slang front-end compiler + * \author Michal Krol + */ + +#include "main/imports.h" +#include "slang_mem.h" +#include "slang_compile.h" + + +GLvoid +_slang_struct_scope_ctr(slang_struct_scope * self) +{ + self->structs = NULL; + self->num_structs = 0; + self->outer_scope = NULL; +} + +void +slang_struct_scope_destruct(slang_struct_scope * scope) +{ + GLuint i; + + for (i = 0; i < scope->num_structs; i++) + slang_struct_destruct(scope->structs + i); + _slang_free(scope->structs); + /* do not free scope->outer_scope */ +} + +int +slang_struct_scope_copy(slang_struct_scope * x, const slang_struct_scope * y) +{ + slang_struct_scope z; + GLuint i; + + _slang_struct_scope_ctr(&z); + z.structs = (slang_struct *) + _slang_alloc(y->num_structs * sizeof(slang_struct)); + if (z.structs == NULL) { + slang_struct_scope_destruct(&z); + return 0; + } + for (z.num_structs = 0; z.num_structs < y->num_structs; z.num_structs++) + if (!slang_struct_construct(&z.structs[z.num_structs])) { + slang_struct_scope_destruct(&z); + return 0; + } + for (i = 0; i < z.num_structs; i++) + if (!slang_struct_copy(&z.structs[i], &y->structs[i])) { + slang_struct_scope_destruct(&z); + return 0; + } + z.outer_scope = y->outer_scope; + slang_struct_scope_destruct(x); + *x = z; + return 1; +} + +slang_struct * +slang_struct_scope_find(slang_struct_scope * stru, slang_atom a_name, + int all_scopes) +{ + GLuint i; + + for (i = 0; i < stru->num_structs; i++) + if (a_name == stru->structs[i].a_name) + return &stru->structs[i]; + if (all_scopes && stru->outer_scope != NULL) + return slang_struct_scope_find(stru->outer_scope, a_name, 1); + return NULL; +} + +/* slang_struct */ + +int +slang_struct_construct(slang_struct * stru) +{ + stru->a_name = SLANG_ATOM_NULL; + stru->fields = (slang_variable_scope *) + _slang_alloc(sizeof(slang_variable_scope)); + if (stru->fields == NULL) + return 0; + _slang_variable_scope_ctr(stru->fields); + + stru->structs = + (slang_struct_scope *) _slang_alloc(sizeof(slang_struct_scope)); + if (stru->structs == NULL) { + slang_variable_scope_destruct(stru->fields); + _slang_free(stru->fields); + return 0; + } + _slang_struct_scope_ctr(stru->structs); + stru->constructor = NULL; + return 1; +} + +void +slang_struct_destruct(slang_struct * stru) +{ + slang_variable_scope_destruct(stru->fields); + _slang_free(stru->fields); + slang_struct_scope_destruct(stru->structs); + _slang_free(stru->structs); +} + +int +slang_struct_copy(slang_struct * x, const slang_struct * y) +{ + slang_struct z; + + if (!slang_struct_construct(&z)) + return 0; + z.a_name = y->a_name; + if (!slang_variable_scope_copy(z.fields, y->fields)) { + slang_struct_destruct(&z); + return 0; + } + if (!slang_struct_scope_copy(z.structs, y->structs)) { + slang_struct_destruct(&z); + return 0; + } + slang_struct_destruct(x); + *x = z; + return 1; +} + +int +slang_struct_equal(const slang_struct * x, const slang_struct * y) +{ + GLuint i; + + if (x->fields->num_variables != y->fields->num_variables) + return 0; + + for (i = 0; i < x->fields->num_variables; i++) { + const slang_variable *varx = x->fields->variables[i]; + const slang_variable *vary = y->fields->variables[i]; + + if (varx->a_name != vary->a_name) + return 0; + if (!slang_type_specifier_equal(&varx->type.specifier, + &vary->type.specifier)) + return 0; + if (varx->type.specifier.type == SLANG_SPEC_ARRAY) + if (varx->array_len != vary->array_len) + return GL_FALSE; + } + return 1; +} diff --git a/mesalib/src/mesa/shader/slang/slang_compile_struct.h b/mesalib/src/mesa/shader/slang/slang_compile_struct.h new file mode 100644 index 000000000..90c5512f4 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_compile_struct.h @@ -0,0 +1,66 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 2005-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#if !defined SLANG_COMPILE_STRUCT_H +#define SLANG_COMPILE_STRUCT_H + +#if defined __cplusplus +extern "C" { +#endif + +struct slang_function_; + +typedef struct slang_struct_scope_ +{ + struct slang_struct_ *structs; + GLuint num_structs; + struct slang_struct_scope_ *outer_scope; +} slang_struct_scope; + +extern GLvoid +_slang_struct_scope_ctr (slang_struct_scope *); + +void slang_struct_scope_destruct (slang_struct_scope *); +int slang_struct_scope_copy (slang_struct_scope *, const slang_struct_scope *); +struct slang_struct_ *slang_struct_scope_find (slang_struct_scope *, slang_atom, int); + +typedef struct slang_struct_ +{ + slang_atom a_name; + struct slang_variable_scope_ *fields; + slang_struct_scope *structs; + struct slang_function_ *constructor; +} slang_struct; + +int slang_struct_construct (slang_struct *); +void slang_struct_destruct (slang_struct *); +int slang_struct_copy (slang_struct *, const slang_struct *); +int slang_struct_equal (const slang_struct *, const slang_struct *); + +#ifdef __cplusplus +} +#endif + +#endif + diff --git a/mesalib/src/mesa/shader/slang/slang_compile_variable.c b/mesalib/src/mesa/shader/slang/slang_compile_variable.c new file mode 100644 index 000000000..eab912710 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_compile_variable.c @@ -0,0 +1,247 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.3 + * + * Copyright (C) 2005-2007 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_compile_variable.c + * slang front-end compiler + * \author Michal Krol + */ + +#include "main/imports.h" +#include "slang_compile.h" +#include "slang_mem.h" + + +static slang_variable * +slang_variable_new(void) +{ + slang_variable *v = (slang_variable *) _slang_alloc(sizeof(slang_variable)); + if (v) { + if (!slang_variable_construct(v)) { + _slang_free(v); + v = NULL; + } + } + return v; +} + + +static void +slang_variable_delete(slang_variable * var) +{ + slang_variable_destruct(var); + _slang_free(var); +} + + +/* + * slang_variable_scope + */ + +slang_variable_scope * +_slang_variable_scope_new(slang_variable_scope *parent) +{ + slang_variable_scope *s; + s = (slang_variable_scope *) _slang_alloc(sizeof(slang_variable_scope)); + if (s) + s->outer_scope = parent; + return s; +} + + +GLvoid +_slang_variable_scope_ctr(slang_variable_scope * self) +{ + self->variables = NULL; + self->num_variables = 0; + self->outer_scope = NULL; +} + +void +slang_variable_scope_destruct(slang_variable_scope * scope) +{ + unsigned int i; + + if (!scope) + return; + for (i = 0; i < scope->num_variables; i++) { + if (scope->variables[i]) + slang_variable_delete(scope->variables[i]); + } + _slang_free(scope->variables); + /* do not free scope->outer_scope */ +} + +int +slang_variable_scope_copy(slang_variable_scope * x, + const slang_variable_scope * y) +{ + slang_variable_scope z; + unsigned int i; + + _slang_variable_scope_ctr(&z); + z.variables = (slang_variable **) + _slang_alloc(y->num_variables * sizeof(slang_variable *)); + if (z.variables == NULL) { + slang_variable_scope_destruct(&z); + return 0; + } + for (z.num_variables = 0; z.num_variables < y->num_variables; + z.num_variables++) { + z.variables[z.num_variables] = slang_variable_new(); + if (!z.variables[z.num_variables]) { + slang_variable_scope_destruct(&z); + return 0; + } + } + for (i = 0; i < z.num_variables; i++) { + if (!slang_variable_copy(z.variables[i], y->variables[i])) { + slang_variable_scope_destruct(&z); + return 0; + } + } + z.outer_scope = y->outer_scope; + slang_variable_scope_destruct(x); + *x = z; + return 1; +} + + +/** + * Grow the variable list by one. + * \return pointer to space for the new variable (will be initialized) + */ +slang_variable * +slang_variable_scope_grow(slang_variable_scope *scope) +{ + const int n = scope->num_variables; + scope->variables = (slang_variable **) + _slang_realloc(scope->variables, + n * sizeof(slang_variable *), + (n + 1) * sizeof(slang_variable *)); + if (!scope->variables) + return NULL; + + scope->num_variables++; + + scope->variables[n] = slang_variable_new(); + if (!scope->variables[n]) + return NULL; + + return scope->variables[n]; +} + + + +/* slang_variable */ + +int +slang_variable_construct(slang_variable * var) +{ + if (!slang_fully_specified_type_construct(&var->type)) + return 0; + var->a_name = SLANG_ATOM_NULL; + var->array_len = 0; + var->initializer = NULL; + var->size = 0; + var->isTemp = GL_FALSE; + var->store = NULL; + var->declared = 0; + return 1; +} + + +void +slang_variable_destruct(slang_variable * var) +{ + slang_fully_specified_type_destruct(&var->type); + if (var->initializer != NULL) { + slang_operation_destruct(var->initializer); + _slang_free(var->initializer); + } +#if 0 + if (var->aux) { + _mesa_free(var->aux); + } +#endif +} + + +int +slang_variable_copy(slang_variable * x, const slang_variable * y) +{ + slang_variable z; + + if (!slang_variable_construct(&z)) + return 0; + if (!slang_fully_specified_type_copy(&z.type, &y->type)) { + slang_variable_destruct(&z); + return 0; + } + z.a_name = y->a_name; + z.array_len = y->array_len; + if (y->initializer != NULL) { + z.initializer + = (slang_operation *) _slang_alloc(sizeof(slang_operation)); + if (z.initializer == NULL) { + slang_variable_destruct(&z); + return 0; + } + if (!slang_operation_construct(z.initializer)) { + _slang_free(z.initializer); + slang_variable_destruct(&z); + return 0; + } + if (!slang_operation_copy(z.initializer, y->initializer)) { + slang_variable_destruct(&z); + return 0; + } + } + z.size = y->size; + slang_variable_destruct(x); + *x = z; + return 1; +} + + +/** + * Search for named variable in given scope. + * \param all if true, search parent scopes too. + */ +slang_variable * +_slang_variable_locate(const slang_variable_scope * scope, + const slang_atom a_name, GLboolean all) +{ + while (scope) { + GLuint i; + for (i = 0; i < scope->num_variables; i++) + if (a_name == scope->variables[i]->a_name) + return scope->variables[i]; + if (all) + scope = scope->outer_scope; + else + scope = NULL; + } + return NULL; +} diff --git a/mesalib/src/mesa/shader/slang/slang_compile_variable.h b/mesalib/src/mesa/shader/slang/slang_compile_variable.h new file mode 100644 index 000000000..b4585599f --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_compile_variable.h @@ -0,0 +1,90 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.2 + * + * Copyright (C) 2005-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef SLANG_COMPILE_VARIABLE_H +#define SLANG_COMPILE_VARIABLE_H + + +struct slang_ir_storage_; + + +/** + * A shading language program variable. + */ +typedef struct slang_variable_ +{ + slang_fully_specified_type type; /**< Variable's data type */ + slang_atom a_name; /**< The variable's name (char *) */ + GLuint array_len; /**< only if type == SLANG_SPEC_ARRAy */ + struct slang_operation_ *initializer; /**< Optional initializer code */ + GLuint size; /**< Variable's size in bytes */ + GLboolean is_global; + GLboolean isTemp; /**< a named temporary (__resultTmp) */ + GLboolean declared; /**< for debug */ + struct slang_ir_storage_ *store; /**< Storage for this var */ +} slang_variable; + + +/** + * Basically a list of variables, with a pointer to the parent scope. + */ +typedef struct slang_variable_scope_ +{ + slang_variable **variables; /**< Array [num_variables] of ptrs to vars */ + GLuint num_variables; + struct slang_variable_scope_ *outer_scope; +} slang_variable_scope; + + +extern slang_variable_scope * +_slang_variable_scope_new(slang_variable_scope *parent); + +extern GLvoid +_slang_variable_scope_ctr(slang_variable_scope *); + +extern void +slang_variable_scope_destruct(slang_variable_scope *); + +extern int +slang_variable_scope_copy(slang_variable_scope *, + const slang_variable_scope *); + +extern slang_variable * +slang_variable_scope_grow(slang_variable_scope *); + +extern int +slang_variable_construct(slang_variable *); + +extern void +slang_variable_destruct(slang_variable *); + +extern int +slang_variable_copy(slang_variable *, const slang_variable *); + +extern slang_variable * +_slang_variable_locate(const slang_variable_scope *, const slang_atom a_name, + GLboolean all); + + +#endif /* SLANG_COMPILE_VARIABLE_H */ diff --git a/mesalib/src/mesa/shader/slang/slang_emit.c b/mesalib/src/mesa/shader/slang/slang_emit.c new file mode 100644 index 000000000..3f455e064 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_emit.c @@ -0,0 +1,2518 @@ +/* + * Mesa 3-D graphics library + * + * Copyright (C) 2005-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2008 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_emit.c + * Emit program instructions (PI code) from IR trees. + * \author Brian Paul + */ + +/*** + *** NOTES + *** + *** To emit GPU instructions, we basically just do an in-order traversal + *** of the IR tree. + ***/ + + +#include "main/imports.h" +#include "main/context.h" +#include "main/macros.h" +#include "shader/program.h" +#include "shader/prog_instruction.h" +#include "shader/prog_parameter.h" +#include "shader/prog_print.h" +#include "slang_builtin.h" +#include "slang_emit.h" +#include "slang_mem.h" + + +#define PEEPHOLE_OPTIMIZATIONS 1 +#define ANNOTATE 0 + + +typedef struct +{ + slang_info_log *log; + slang_var_table *vt; + struct gl_program *prog; + struct gl_program **Subroutines; + GLuint NumSubroutines; + + GLuint MaxInstructions; /**< size of prog->Instructions[] buffer */ + + GLboolean UnresolvedFunctions; + + /* code-gen options */ + GLboolean EmitHighLevelInstructions; + GLboolean EmitCondCodes; + GLboolean EmitComments; + GLboolean EmitBeginEndSub; /* XXX TEMPORARY */ +} slang_emit_info; + + + +static struct gl_program * +new_subroutine(slang_emit_info *emitInfo, GLuint *id) +{ + GET_CURRENT_CONTEXT(ctx); + const GLuint n = emitInfo->NumSubroutines; + + emitInfo->Subroutines = (struct gl_program **) + _mesa_realloc(emitInfo->Subroutines, + n * sizeof(struct gl_program), + (n + 1) * sizeof(struct gl_program)); + emitInfo->Subroutines[n] = ctx->Driver.NewProgram(ctx, emitInfo->prog->Target, 0); + emitInfo->Subroutines[n]->Parameters = emitInfo->prog->Parameters; + emitInfo->NumSubroutines++; + *id = n; + return emitInfo->Subroutines[n]; +} + + +/** + * Convert a writemask to a swizzle. Used for testing cond codes because + * we only want to test the cond code component(s) that was set by the + * previous instruction. + */ +static GLuint +writemask_to_swizzle(GLuint writemask) +{ + if (writemask == WRITEMASK_X) + return SWIZZLE_XXXX; + if (writemask == WRITEMASK_Y) + return SWIZZLE_YYYY; + if (writemask == WRITEMASK_Z) + return SWIZZLE_ZZZZ; + if (writemask == WRITEMASK_W) + return SWIZZLE_WWWW; + return SWIZZLE_XYZW; /* shouldn't be hit */ +} + + +/** + * Convert a swizzle mask to a writemask. + * Note that the slang_ir_storage->Swizzle field can represent either a + * swizzle mask or a writemask, depending on how it's used. For example, + * when we parse "direction.yz" alone, we don't know whether .yz is a + * writemask or a swizzle. In this case, we encode ".yz" in store->Swizzle + * as a swizzle mask (.yz?? actually). Later, if direction.yz is used as + * an R-value, we use store->Swizzle as-is. Otherwise, if direction.yz is + * used as an L-value, we convert it to a writemask. + */ +static GLuint +swizzle_to_writemask(GLuint swizzle) +{ + GLuint i, writemask = 0x0; + for (i = 0; i < 4; i++) { + GLuint swz = GET_SWZ(swizzle, i); + if (swz <= SWIZZLE_W) { + writemask |= (1 << swz); + } + } + return writemask; +} + + +/** + * Swizzle a swizzle (function composition). + * That is, return swz2(swz1), or said another way: swz1.szw2 + * Example: swizzle_swizzle(".zwxx", ".xxyw") yields ".zzwx" + */ +GLuint +_slang_swizzle_swizzle(GLuint swz1, GLuint swz2) +{ + GLuint i, swz, s[4]; + for (i = 0; i < 4; i++) { + GLuint c = GET_SWZ(swz2, i); + if (c <= SWIZZLE_W) + s[i] = GET_SWZ(swz1, c); + else + s[i] = c; + } + swz = MAKE_SWIZZLE4(s[0], s[1], s[2], s[3]); + return swz; +} + + +/** + * Return the default swizzle mask for accessing a variable of the + * given size (in floats). If size = 1, comp is used to identify + * which component [0..3] of the register holds the variable. + */ +GLuint +_slang_var_swizzle(GLint size, GLint comp) +{ + switch (size) { + case 1: + return MAKE_SWIZZLE4(comp, SWIZZLE_NIL, SWIZZLE_NIL, SWIZZLE_NIL); + case 2: + return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_NIL, SWIZZLE_NIL); + case 3: + return MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_NIL); + default: + return SWIZZLE_XYZW; + } +} + + + +/** + * Allocate storage for the given node (if it hasn't already been allocated). + * + * Typically this is temporary storage for an intermediate result (such as + * for a multiply or add, etc). + * + * If n->Store does not exist it will be created and will be of the size + * specified by defaultSize. + */ +static GLboolean +alloc_node_storage(slang_emit_info *emitInfo, slang_ir_node *n, + GLint defaultSize) +{ + assert(!n->Var); + if (!n->Store) { + assert(defaultSize > 0); + n->Store = _slang_new_ir_storage(PROGRAM_TEMPORARY, -1, defaultSize); + } + + /* now allocate actual register(s). I.e. set n->Store->Index >= 0 */ + if (n->Store->Index < 0) { + if (!_slang_alloc_temp(emitInfo->vt, n->Store)) { + slang_info_log_error(emitInfo->log, + "Ran out of registers, too many temporaries"); + _slang_free(n->Store); + n->Store = NULL; + return GL_FALSE; + } + } + return GL_TRUE; +} + + +/** + * Free temporary storage, if n->Store is, in fact, temp storage. + * Otherwise, no-op. + */ +static void +free_node_storage(slang_var_table *vt, slang_ir_node *n) +{ + if (n->Store->File == PROGRAM_TEMPORARY && + n->Store->Index >= 0 && + n->Opcode != IR_SWIZZLE) { + if (_slang_is_temp(vt, n->Store)) { + _slang_free_temp(vt, n->Store); + n->Store->Index = -1; + n->Store = NULL; /* XXX this may not be needed */ + } + } +} + + +/** + * Helper function to allocate a short-term temporary. + * Free it with _slang_free_temp(). + */ +static GLboolean +alloc_local_temp(slang_emit_info *emitInfo, slang_ir_storage *temp, GLint size) +{ + assert(size >= 1); + assert(size <= 4); + _mesa_bzero(temp, sizeof(*temp)); + temp->Size = size; + temp->File = PROGRAM_TEMPORARY; + temp->Index = -1; + return _slang_alloc_temp(emitInfo->vt, temp); +} + + +/** + * Remove any SWIZZLE_NIL terms from given swizzle mask. + * For a swizzle like .z??? generate .zzzz (replicate single component). + * Else, for .wx?? generate .wxzw (insert default component for the position). + */ +static GLuint +fix_swizzle(GLuint swizzle) +{ + GLuint c0 = GET_SWZ(swizzle, 0), + c1 = GET_SWZ(swizzle, 1), + c2 = GET_SWZ(swizzle, 2), + c3 = GET_SWZ(swizzle, 3); + if (c1 == SWIZZLE_NIL && c2 == SWIZZLE_NIL && c3 == SWIZZLE_NIL) { + /* smear first component across all positions */ + c1 = c2 = c3 = c0; + } + else { + /* insert default swizzle components */ + if (c0 == SWIZZLE_NIL) + c0 = SWIZZLE_X; + if (c1 == SWIZZLE_NIL) + c1 = SWIZZLE_Y; + if (c2 == SWIZZLE_NIL) + c2 = SWIZZLE_Z; + if (c3 == SWIZZLE_NIL) + c3 = SWIZZLE_W; + } + return MAKE_SWIZZLE4(c0, c1, c2, c3); +} + + + +/** + * Convert IR storage to an instruction dst register. + */ +static void +storage_to_dst_reg(struct prog_dst_register *dst, const slang_ir_storage *st) +{ + const GLboolean relAddr = st->RelAddr; + const GLint size = st->Size; + GLint index = st->Index; + GLuint swizzle = st->Swizzle; + + assert(index >= 0); + /* if this is storage relative to some parent storage, walk up the tree */ + while (st->Parent) { + st = st->Parent; + assert(st->Index >= 0); + index += st->Index; + swizzle = _slang_swizzle_swizzle(st->Swizzle, swizzle); + } + + assert(st->File != PROGRAM_UNDEFINED); + dst->File = st->File; + + assert(index >= 0); + dst->Index = index; + + assert(size >= 1); + assert(size <= 4); + + if (swizzle != SWIZZLE_XYZW) { + dst->WriteMask = swizzle_to_writemask(swizzle); + } + else { + switch (size) { + case 1: + dst->WriteMask = WRITEMASK_X << GET_SWZ(st->Swizzle, 0); + break; + case 2: + dst->WriteMask = WRITEMASK_XY; + break; + case 3: + dst->WriteMask = WRITEMASK_XYZ; + break; + case 4: + dst->WriteMask = WRITEMASK_XYZW; + break; + default: + ; /* error would have been caught above */ + } + } + + dst->RelAddr = relAddr; +} + + +/** + * Convert IR storage to an instruction src register. + */ +static void +storage_to_src_reg(struct prog_src_register *src, const slang_ir_storage *st) +{ + const GLboolean relAddr = st->RelAddr; + GLint index = st->Index; + GLuint swizzle = st->Swizzle; + + /* if this is storage relative to some parent storage, walk up the tree */ + assert(index >= 0); + while (st->Parent) { + st = st->Parent; + if (st->Index < 0) { + /* an error should have been reported already */ + return; + } + assert(st->Index >= 0); + index += st->Index; + swizzle = _slang_swizzle_swizzle(fix_swizzle(st->Swizzle), swizzle); + } + + assert(st->File >= 0); +#if 1 /* XXX temporary */ + if (st->File == PROGRAM_UNDEFINED) { + slang_ir_storage *st0 = (slang_ir_storage *) st; + st0->File = PROGRAM_TEMPORARY; + } +#endif + assert(st->File < PROGRAM_UNDEFINED); + src->File = st->File; + + assert(index >= 0); + src->Index = index; + + swizzle = fix_swizzle(swizzle); + assert(GET_SWZ(swizzle, 0) <= SWIZZLE_W); + assert(GET_SWZ(swizzle, 1) <= SWIZZLE_W); + assert(GET_SWZ(swizzle, 2) <= SWIZZLE_W); + assert(GET_SWZ(swizzle, 3) <= SWIZZLE_W); + src->Swizzle = swizzle; + + src->RelAddr = relAddr; +} + + +/* + * Setup storage pointing to a scalar constant/literal. + */ +static void +constant_to_storage(slang_emit_info *emitInfo, + GLfloat val, + slang_ir_storage *store) +{ + GLuint swizzle; + GLint reg; + GLfloat value[4]; + + value[0] = val; + reg = _mesa_add_unnamed_constant(emitInfo->prog->Parameters, + value, 1, &swizzle); + + memset(store, 0, sizeof(*store)); + store->File = PROGRAM_CONSTANT; + store->Index = reg; + store->Swizzle = swizzle; +} + + +/** + * Add new instruction at end of given program. + * \param prog the program to append instruction onto + * \param opcode opcode for the new instruction + * \return pointer to the new instruction + */ +static struct prog_instruction * +new_instruction(slang_emit_info *emitInfo, gl_inst_opcode opcode) +{ + struct gl_program *prog = emitInfo->prog; + struct prog_instruction *inst; + +#if 0 + /* print prev inst */ + if (prog->NumInstructions > 0) { + _mesa_print_instruction(prog->Instructions + prog->NumInstructions - 1); + } +#endif + assert(prog->NumInstructions <= emitInfo->MaxInstructions); + + if (prog->NumInstructions == emitInfo->MaxInstructions) { + /* grow the instruction buffer */ + emitInfo->MaxInstructions += 20; + prog->Instructions = + _mesa_realloc_instructions(prog->Instructions, + prog->NumInstructions, + emitInfo->MaxInstructions); + } + + inst = prog->Instructions + prog->NumInstructions; + prog->NumInstructions++; + _mesa_init_instructions(inst, 1); + inst->Opcode = opcode; + inst->BranchTarget = -1; /* invalid */ + /* + printf("New inst %d: %p %s\n", prog->NumInstructions-1,(void*)inst, + _mesa_opcode_string(inst->Opcode)); + */ + return inst; +} + + +static struct prog_instruction * +emit_arl_load(slang_emit_info *emitInfo, + gl_register_file file, GLint index, GLuint swizzle) +{ + struct prog_instruction *inst = new_instruction(emitInfo, OPCODE_ARL); + inst->SrcReg[0].File = file; + inst->SrcReg[0].Index = index; + inst->SrcReg[0].Swizzle = fix_swizzle(swizzle); + inst->DstReg.File = PROGRAM_ADDRESS; + inst->DstReg.Index = 0; + inst->DstReg.WriteMask = WRITEMASK_X; + return inst; +} + + +/** + * Emit a new instruction with given opcode, operands. + * At this point the instruction may have multiple indirect register + * loads/stores. We convert those into ARL loads and address-relative + * operands. See comments inside. + * At some point in the future we could directly emit indirectly addressed + * registers in Mesa GPU instructions. + */ +static struct prog_instruction * +emit_instruction(slang_emit_info *emitInfo, + gl_inst_opcode opcode, + const slang_ir_storage *dst, + const slang_ir_storage *src0, + const slang_ir_storage *src1, + const slang_ir_storage *src2) +{ + struct prog_instruction *inst; + GLuint numIndirect = 0; + const slang_ir_storage *src[3]; + slang_ir_storage newSrc[3], newDst; + GLuint i; + GLboolean isTemp[3]; + + isTemp[0] = isTemp[1] = isTemp[2] = GL_FALSE; + + src[0] = src0; + src[1] = src1; + src[2] = src2; + + /* count up how many operands are indirect loads */ + for (i = 0; i < 3; i++) { + if (src[i] && src[i]->IsIndirect) + numIndirect++; + } + if (dst && dst->IsIndirect) + numIndirect++; + + /* Take special steps for indirect register loads. + * If we had multiple address registers this would be simpler. + * For example, this GLSL code: + * x[i] = y[j] + z[k]; + * would translate into something like: + * ARL ADDR.x, i; + * ARL ADDR.y, j; + * ARL ADDR.z, k; + * ADD TEMP[ADDR.x+5], TEMP[ADDR.y+9], TEMP[ADDR.z+4]; + * But since we currently only have one address register we have to do this: + * ARL ADDR.x, i; + * MOV t1, TEMP[ADDR.x+9]; + * ARL ADDR.x, j; + * MOV t2, TEMP[ADDR.x+4]; + * ARL ADDR.x, k; + * ADD TEMP[ADDR.x+5], t1, t2; + * The code here figures this out... + */ + if (numIndirect > 0) { + for (i = 0; i < 3; i++) { + if (src[i] && src[i]->IsIndirect) { + /* load the ARL register with the indirect register */ + emit_arl_load(emitInfo, + src[i]->IndirectFile, + src[i]->IndirectIndex, + src[i]->IndirectSwizzle); + + if (numIndirect > 1) { + /* Need to load src[i] into a temporary register */ + slang_ir_storage srcRelAddr; + alloc_local_temp(emitInfo, &newSrc[i], src[i]->Size); + isTemp[i] = GL_TRUE; + + /* set RelAddr flag on src register */ + srcRelAddr = *src[i]; + srcRelAddr.RelAddr = GL_TRUE; + srcRelAddr.IsIndirect = GL_FALSE; /* not really needed */ + + /* MOV newSrc, srcRelAddr; */ + inst = emit_instruction(emitInfo, + OPCODE_MOV, + &newSrc[i], + &srcRelAddr, + NULL, + NULL); + + src[i] = &newSrc[i]; + } + else { + /* just rewrite the src[i] storage to be ARL-relative */ + newSrc[i] = *src[i]; + newSrc[i].RelAddr = GL_TRUE; + newSrc[i].IsIndirect = GL_FALSE; /* not really needed */ + src[i] = &newSrc[i]; + } + } + } + } + + /* Take special steps for indirect dest register write */ + if (dst && dst->IsIndirect) { + /* load the ARL register with the indirect register */ + emit_arl_load(emitInfo, + dst->IndirectFile, + dst->IndirectIndex, + dst->IndirectSwizzle); + newDst = *dst; + newDst.RelAddr = GL_TRUE; + newDst.IsIndirect = GL_FALSE; + dst = &newDst; + } + + /* OK, emit the instruction and its dst, src regs */ + inst = new_instruction(emitInfo, opcode); + if (!inst) + return NULL; + + if (dst) + storage_to_dst_reg(&inst->DstReg, dst); + + for (i = 0; i < 3; i++) { + if (src[i]) + storage_to_src_reg(&inst->SrcReg[i], src[i]); + } + + /* Free any temp registers that we allocated above */ + for (i = 0; i < 3; i++) { + if (isTemp[i]) + _slang_free_temp(emitInfo->vt, &newSrc[i]); + } + + return inst; +} + + + +/** + * Put a comment on the given instruction. + */ +static void +inst_comment(struct prog_instruction *inst, const char *comment) +{ + if (inst) + inst->Comment = _mesa_strdup(comment); +} + + + +/** + * Return pointer to last instruction in program. + */ +static struct prog_instruction * +prev_instruction(slang_emit_info *emitInfo) +{ + struct gl_program *prog = emitInfo->prog; + if (prog->NumInstructions == 0) + return NULL; + else + return prog->Instructions + prog->NumInstructions - 1; +} + + +static struct prog_instruction * +emit(slang_emit_info *emitInfo, slang_ir_node *n); + + +/** + * Return an annotation string for given node's storage. + */ +static char * +storage_annotation(const slang_ir_node *n, const struct gl_program *prog) +{ +#if ANNOTATE + const slang_ir_storage *st = n->Store; + static char s[100] = ""; + + if (!st) + return _mesa_strdup(""); + + switch (st->File) { + case PROGRAM_CONSTANT: + if (st->Index >= 0) { + const GLfloat *val = prog->Parameters->ParameterValues[st->Index]; + if (st->Swizzle == SWIZZLE_NOOP) + sprintf(s, "{%g, %g, %g, %g}", val[0], val[1], val[2], val[3]); + else { + sprintf(s, "%g", val[GET_SWZ(st->Swizzle, 0)]); + } + } + break; + case PROGRAM_TEMPORARY: + if (n->Var) + sprintf(s, "%s", (char *) n->Var->a_name); + else + sprintf(s, "t[%d]", st->Index); + break; + case PROGRAM_STATE_VAR: + case PROGRAM_UNIFORM: + sprintf(s, "%s", prog->Parameters->Parameters[st->Index].Name); + break; + case PROGRAM_VARYING: + sprintf(s, "%s", prog->Varying->Parameters[st->Index].Name); + break; + case PROGRAM_INPUT: + sprintf(s, "input[%d]", st->Index); + break; + case PROGRAM_OUTPUT: + sprintf(s, "output[%d]", st->Index); + break; + default: + s[0] = 0; + } + return _mesa_strdup(s); +#else + return NULL; +#endif +} + + +/** + * Return an annotation string for an instruction. + */ +static char * +instruction_annotation(gl_inst_opcode opcode, char *dstAnnot, + char *srcAnnot0, char *srcAnnot1, char *srcAnnot2) +{ +#if ANNOTATE + const char *operator; + char *s; + int len = 50; + + if (dstAnnot) + len += strlen(dstAnnot); + else + dstAnnot = _mesa_strdup(""); + + if (srcAnnot0) + len += strlen(srcAnnot0); + else + srcAnnot0 = _mesa_strdup(""); + + if (srcAnnot1) + len += strlen(srcAnnot1); + else + srcAnnot1 = _mesa_strdup(""); + + if (srcAnnot2) + len += strlen(srcAnnot2); + else + srcAnnot2 = _mesa_strdup(""); + + switch (opcode) { + case OPCODE_ADD: + operator = "+"; + break; + case OPCODE_SUB: + operator = "-"; + break; + case OPCODE_MUL: + operator = "*"; + break; + case OPCODE_DP2: + operator = "DP2"; + break; + case OPCODE_DP3: + operator = "DP3"; + break; + case OPCODE_DP4: + operator = "DP4"; + break; + case OPCODE_XPD: + operator = "XPD"; + break; + case OPCODE_RSQ: + operator = "RSQ"; + break; + case OPCODE_SGT: + operator = ">"; + break; + default: + operator = ","; + } + + s = (char *) malloc(len); + sprintf(s, "%s = %s %s %s %s", dstAnnot, + srcAnnot0, operator, srcAnnot1, srcAnnot2); + assert(_mesa_strlen(s) < len); + + free(dstAnnot); + free(srcAnnot0); + free(srcAnnot1); + free(srcAnnot2); + + return s; +#else + return NULL; +#endif +} + + +/** + * Emit an instruction that's just a comment. + */ +static struct prog_instruction * +emit_comment(slang_emit_info *emitInfo, const char *comment) +{ + struct prog_instruction *inst = new_instruction(emitInfo, OPCODE_NOP); + inst_comment(inst, comment); + return inst; +} + + +/** + * Generate code for a simple arithmetic instruction. + * Either 1, 2 or 3 operands. + */ +static struct prog_instruction * +emit_arith(slang_emit_info *emitInfo, slang_ir_node *n) +{ + const slang_ir_info *info = _slang_ir_info(n->Opcode); + struct prog_instruction *inst; + GLuint i; + + assert(info); + assert(info->InstOpcode != OPCODE_NOP); + +#if PEEPHOLE_OPTIMIZATIONS + /* Look for MAD opportunity */ + if (info->NumParams == 2 && + n->Opcode == IR_ADD && n->Children[0]->Opcode == IR_MUL) { + /* found pattern IR_ADD(IR_MUL(A, B), C) */ + emit(emitInfo, n->Children[0]->Children[0]); /* A */ + emit(emitInfo, n->Children[0]->Children[1]); /* B */ + emit(emitInfo, n->Children[1]); /* C */ + alloc_node_storage(emitInfo, n, -1); /* dest */ + + inst = emit_instruction(emitInfo, + OPCODE_MAD, + n->Store, + n->Children[0]->Children[0]->Store, + n->Children[0]->Children[1]->Store, + n->Children[1]->Store); + + free_node_storage(emitInfo->vt, n->Children[0]->Children[0]); + free_node_storage(emitInfo->vt, n->Children[0]->Children[1]); + free_node_storage(emitInfo->vt, n->Children[1]); + return inst; + } + + if (info->NumParams == 2 && + n->Opcode == IR_ADD && n->Children[1]->Opcode == IR_MUL) { + /* found pattern IR_ADD(A, IR_MUL(B, C)) */ + emit(emitInfo, n->Children[0]); /* A */ + emit(emitInfo, n->Children[1]->Children[0]); /* B */ + emit(emitInfo, n->Children[1]->Children[1]); /* C */ + alloc_node_storage(emitInfo, n, -1); /* dest */ + + inst = emit_instruction(emitInfo, + OPCODE_MAD, + n->Store, + n->Children[1]->Children[0]->Store, + n->Children[1]->Children[1]->Store, + n->Children[0]->Store); + + free_node_storage(emitInfo->vt, n->Children[1]->Children[0]); + free_node_storage(emitInfo->vt, n->Children[1]->Children[1]); + free_node_storage(emitInfo->vt, n->Children[0]); + return inst; + } +#endif + + /* gen code for children, may involve temp allocation */ + for (i = 0; i < info->NumParams; i++) { + emit(emitInfo, n->Children[i]); + if (!n->Children[i] || !n->Children[i]->Store) { + /* error recovery */ + return NULL; + } + } + + /* result storage */ + alloc_node_storage(emitInfo, n, -1); + + inst = emit_instruction(emitInfo, + info->InstOpcode, + n->Store, /* dest */ + (info->NumParams > 0 ? n->Children[0]->Store : NULL), + (info->NumParams > 1 ? n->Children[1]->Store : NULL), + (info->NumParams > 2 ? n->Children[2]->Store : NULL) + ); + + /* free temps */ + for (i = 0; i < info->NumParams; i++) + free_node_storage(emitInfo->vt, n->Children[i]); + + return inst; +} + + +/** + * Emit code for == and != operators. These could normally be handled + * by emit_arith() except we need to be able to handle structure comparisons. + */ +static struct prog_instruction * +emit_compare(slang_emit_info *emitInfo, slang_ir_node *n) +{ + struct prog_instruction *inst = NULL; + GLint size; + + assert(n->Opcode == IR_EQUAL || n->Opcode == IR_NOTEQUAL); + + /* gen code for children */ + emit(emitInfo, n->Children[0]); + emit(emitInfo, n->Children[1]); + + if (n->Children[0]->Store->Size != n->Children[1]->Store->Size) { + /* XXX this error should have been caught in slang_codegen.c */ + slang_info_log_error(emitInfo->log, "invalid operands to == or !="); + n->Store = NULL; + return NULL; + } + + /* final result is 1 bool */ + if (!alloc_node_storage(emitInfo, n, 1)) + return NULL; + + size = n->Children[0]->Store->Size; + + if (size == 1) { + gl_inst_opcode opcode = n->Opcode == IR_EQUAL ? OPCODE_SEQ : OPCODE_SNE; + inst = emit_instruction(emitInfo, + opcode, + n->Store, /* dest */ + n->Children[0]->Store, + n->Children[1]->Store, + NULL); + } + else if (size <= 4) { + /* compare two vectors. + * Unfortunately, there's no instruction to compare vectors and + * return a scalar result. Do it with some compare and dot product + * instructions... + */ + GLuint swizzle; + gl_inst_opcode dotOp; + slang_ir_storage tempStore; + + if (!alloc_local_temp(emitInfo, &tempStore, 4)) { + n->Store = NULL; + return NULL; + /* out of temps */ + } + + if (size == 4) { + dotOp = OPCODE_DP4; + swizzle = SWIZZLE_XYZW; + } + else if (size == 3) { + dotOp = OPCODE_DP3; + swizzle = SWIZZLE_XYZW; + } + else { + assert(size == 2); + dotOp = OPCODE_DP3; /* XXX use OPCODE_DP2 eventually */ + swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Y, SWIZZLE_Y); + } + + /* Compute inequality (temp = (A != B)) */ + inst = emit_instruction(emitInfo, + OPCODE_SNE, + &tempStore, + n->Children[0]->Store, + n->Children[1]->Store, + NULL); + inst_comment(inst, "Compare values"); + + /* Compute val = DOT(temp, temp) (reduction) */ + inst = emit_instruction(emitInfo, + dotOp, + n->Store, + &tempStore, + &tempStore, + NULL); + inst->SrcReg[0].Swizzle = inst->SrcReg[1].Swizzle = swizzle; /*override*/ + inst_comment(inst, "Reduce vec to bool"); + + _slang_free_temp(emitInfo->vt, &tempStore); /* free temp */ + + if (n->Opcode == IR_EQUAL) { + /* compute val = !val.x with SEQ val, val, 0; */ + slang_ir_storage zero; + constant_to_storage(emitInfo, 0.0, &zero); + inst = emit_instruction(emitInfo, + OPCODE_SEQ, + n->Store, /* dest */ + n->Store, + &zero, + NULL); + inst_comment(inst, "Invert true/false"); + } + } + else { + /* size > 4, struct or array compare. + * XXX this won't work reliably for structs with padding!! + */ + GLint i, num = (n->Children[0]->Store->Size + 3) / 4; + slang_ir_storage accTemp, sneTemp; + + if (!alloc_local_temp(emitInfo, &accTemp, 4)) + return NULL; + + if (!alloc_local_temp(emitInfo, &sneTemp, 4)) + return NULL; + + for (i = 0; i < num; i++) { + slang_ir_storage srcStore0 = *n->Children[0]->Store; + slang_ir_storage srcStore1 = *n->Children[1]->Store; + srcStore0.Index += i; + srcStore1.Index += i; + + if (i == 0) { + /* SNE accTemp, left[i], right[i] */ + inst = emit_instruction(emitInfo, OPCODE_SNE, + &accTemp, /* dest */ + &srcStore0, + &srcStore1, + NULL); + inst_comment(inst, "Begin struct/array comparison"); + } + else { + /* SNE sneTemp, left[i], right[i] */ + inst = emit_instruction(emitInfo, OPCODE_SNE, + &sneTemp, /* dest */ + &srcStore0, + &srcStore1, + NULL); + /* ADD accTemp, accTemp, sneTemp; # like logical-OR */ + inst = emit_instruction(emitInfo, OPCODE_ADD, + &accTemp, /* dest */ + &accTemp, + &sneTemp, + NULL); + } + } + + /* compute accTemp.x || accTemp.y || accTemp.z || accTemp.w with DOT4 */ + inst = emit_instruction(emitInfo, OPCODE_DP4, + n->Store, + &accTemp, + &accTemp, + NULL); + inst_comment(inst, "End struct/array comparison"); + + if (n->Opcode == IR_EQUAL) { + /* compute tmp.x = !tmp.x via tmp.x = (tmp.x == 0) */ + slang_ir_storage zero; + constant_to_storage(emitInfo, 0.0, &zero); + inst = emit_instruction(emitInfo, OPCODE_SEQ, + n->Store, /* dest */ + n->Store, + &zero, + NULL); + inst_comment(inst, "Invert true/false"); + } + + _slang_free_temp(emitInfo->vt, &accTemp); + _slang_free_temp(emitInfo->vt, &sneTemp); + } + + /* free temps */ + free_node_storage(emitInfo->vt, n->Children[0]); + free_node_storage(emitInfo->vt, n->Children[1]); + + return inst; +} + + + +/** + * Generate code for an IR_CLAMP instruction. + */ +static struct prog_instruction * +emit_clamp(slang_emit_info *emitInfo, slang_ir_node *n) +{ + struct prog_instruction *inst; + slang_ir_node tmpNode; + + assert(n->Opcode == IR_CLAMP); + /* ch[0] = value + * ch[1] = min limit + * ch[2] = max limit + */ + + inst = emit(emitInfo, n->Children[0]); + + /* If lower limit == 0.0 and upper limit == 1.0, + * set prev instruction's SaturateMode field to SATURATE_ZERO_ONE. + * Else, + * emit OPCODE_MIN, OPCODE_MAX sequence. + */ +#if 0 + /* XXX this isn't quite finished yet */ + if (n->Children[1]->Opcode == IR_FLOAT && + n->Children[1]->Value[0] == 0.0 && + n->Children[1]->Value[1] == 0.0 && + n->Children[1]->Value[2] == 0.0 && + n->Children[1]->Value[3] == 0.0 && + n->Children[2]->Opcode == IR_FLOAT && + n->Children[2]->Value[0] == 1.0 && + n->Children[2]->Value[1] == 1.0 && + n->Children[2]->Value[2] == 1.0 && + n->Children[2]->Value[3] == 1.0) { + if (!inst) { + inst = prev_instruction(prog); + } + if (inst && inst->Opcode != OPCODE_NOP) { + /* and prev instruction's DstReg matches n->Children[0]->Store */ + inst->SaturateMode = SATURATE_ZERO_ONE; + n->Store = n->Children[0]->Store; + return inst; + } + } +#endif + + if (!alloc_node_storage(emitInfo, n, n->Children[0]->Store->Size)) + return NULL; + + emit(emitInfo, n->Children[1]); + emit(emitInfo, n->Children[2]); + + /* Some GPUs don't allow reading from output registers. So if the + * dest for this clamp() is an output reg, we can't use that reg for + * the intermediate result. Use a temp register instead. + */ + _mesa_bzero(&tmpNode, sizeof(tmpNode)); + alloc_node_storage(emitInfo, &tmpNode, n->Store->Size); + + /* tmp = max(ch[0], ch[1]) */ + inst = emit_instruction(emitInfo, OPCODE_MAX, + tmpNode.Store, /* dest */ + n->Children[0]->Store, + n->Children[1]->Store, + NULL); + + /* n->dest = min(tmp, ch[2]) */ + inst = emit_instruction(emitInfo, OPCODE_MIN, + n->Store, /* dest */ + tmpNode.Store, + n->Children[2]->Store, + NULL); + + free_node_storage(emitInfo->vt, &tmpNode); + + return inst; +} + + +static struct prog_instruction * +emit_negation(slang_emit_info *emitInfo, slang_ir_node *n) +{ + /* Implement as MOV dst, -src; */ + /* XXX we could look at the previous instruction and in some circumstances + * modify it to accomplish the negation. + */ + struct prog_instruction *inst; + + emit(emitInfo, n->Children[0]); + + if (!alloc_node_storage(emitInfo, n, n->Children[0]->Store->Size)) + return NULL; + + inst = emit_instruction(emitInfo, + OPCODE_MOV, + n->Store, /* dest */ + n->Children[0]->Store, + NULL, + NULL); + inst->SrcReg[0].Negate = NEGATE_XYZW; + return inst; +} + + +static struct prog_instruction * +emit_label(slang_emit_info *emitInfo, const slang_ir_node *n) +{ + assert(n->Label); +#if 0 + /* XXX this fails in loop tail code - investigate someday */ + assert(_slang_label_get_location(n->Label) < 0); + _slang_label_set_location(n->Label, emitInfo->prog->NumInstructions, + emitInfo->prog); +#else + if (_slang_label_get_location(n->Label) < 0) + _slang_label_set_location(n->Label, emitInfo->prog->NumInstructions, + emitInfo->prog); +#endif + return NULL; +} + + +/** + * Emit code for a function call. + * Note that for each time a function is called, we emit the function's + * body code again because the set of available registers may be different. + */ +static struct prog_instruction * +emit_fcall(slang_emit_info *emitInfo, slang_ir_node *n) +{ + struct gl_program *progSave; + struct prog_instruction *inst; + GLuint subroutineId; + GLuint maxInstSave; + + assert(n->Opcode == IR_CALL); + assert(n->Label); + + /* save/push cur program */ + maxInstSave = emitInfo->MaxInstructions; + progSave = emitInfo->prog; + + emitInfo->prog = new_subroutine(emitInfo, &subroutineId); + emitInfo->MaxInstructions = emitInfo->prog->NumInstructions; + + _slang_label_set_location(n->Label, emitInfo->prog->NumInstructions, + emitInfo->prog); + + if (emitInfo->EmitBeginEndSub) { + /* BGNSUB isn't a real instruction. + * We require a label (i.e. "foobar:") though, if we're going to + * print the program in the NV format. The BNGSUB instruction is + * really just a NOP to attach the label to. + */ + inst = new_instruction(emitInfo, OPCODE_BGNSUB); + inst_comment(inst, n->Label->Name); + } + + /* body of function: */ + emit(emitInfo, n->Children[0]); + n->Store = n->Children[0]->Store; + + /* add RET instruction now, if needed */ + inst = prev_instruction(emitInfo); + if (inst && inst->Opcode != OPCODE_RET) { + inst = new_instruction(emitInfo, OPCODE_RET); + } + + if (emitInfo->EmitBeginEndSub) { + inst = new_instruction(emitInfo, OPCODE_ENDSUB); + inst_comment(inst, n->Label->Name); + } + + /* pop/restore cur program */ + emitInfo->prog = progSave; + emitInfo->MaxInstructions = maxInstSave; + + /* emit the function call */ + inst = new_instruction(emitInfo, OPCODE_CAL); + /* The branch target is just the subroutine number (changed later) */ + inst->BranchTarget = subroutineId; + inst_comment(inst, n->Label->Name); + assert(inst->BranchTarget >= 0); + + return inst; +} + + +/** + * Emit code for a 'return' statement. + */ +static struct prog_instruction * +emit_return(slang_emit_info *emitInfo, slang_ir_node *n) +{ + struct prog_instruction *inst; + assert(n); + assert(n->Opcode == IR_RETURN); + assert(n->Label); + inst = new_instruction(emitInfo, OPCODE_RET); + inst->DstReg.CondMask = COND_TR; /* always return */ + return inst; +} + + +static struct prog_instruction * +emit_kill(slang_emit_info *emitInfo) +{ + struct gl_fragment_program *fp; + struct prog_instruction *inst; + /* NV-KILL - discard fragment depending on condition code. + * Note that ARB-KILL depends on sign of vector operand. + */ + inst = new_instruction(emitInfo, OPCODE_KIL_NV); + inst->DstReg.CondMask = COND_TR; /* always kill */ + + assert(emitInfo->prog->Target == GL_FRAGMENT_PROGRAM_ARB); + fp = (struct gl_fragment_program *) emitInfo->prog; + fp->UsesKill = GL_TRUE; + + return inst; +} + + +static struct prog_instruction * +emit_tex(slang_emit_info *emitInfo, slang_ir_node *n) +{ + struct prog_instruction *inst; + gl_inst_opcode opcode; + GLboolean shadow = GL_FALSE; + + switch (n->Opcode) { + case IR_TEX: + opcode = OPCODE_TEX; + break; + case IR_TEX_SH: + opcode = OPCODE_TEX; + shadow = GL_TRUE; + break; + case IR_TEXB: + opcode = OPCODE_TXB; + break; + case IR_TEXB_SH: + opcode = OPCODE_TXB; + shadow = GL_TRUE; + break; + case IR_TEXP: + opcode = OPCODE_TXP; + break; + case IR_TEXP_SH: + opcode = OPCODE_TXP; + shadow = GL_TRUE; + break; + default: + _mesa_problem(NULL, "Bad IR TEX code"); + return NULL; + } + + if (n->Children[0]->Opcode == IR_ELEMENT) { + /* array is the sampler (a uniform which'll indicate the texture unit) */ + assert(n->Children[0]->Children[0]->Store); + assert(n->Children[0]->Children[0]->Store->File == PROGRAM_SAMPLER); + + emit(emitInfo, n->Children[0]); + + n->Children[0]->Var = n->Children[0]->Children[0]->Var; + } else { + /* this is the sampler (a uniform which'll indicate the texture unit) */ + assert(n->Children[0]->Store); + assert(n->Children[0]->Store->File == PROGRAM_SAMPLER); + } + + /* emit code for the texcoord operand */ + (void) emit(emitInfo, n->Children[1]); + + /* alloc storage for result of texture fetch */ + if (!alloc_node_storage(emitInfo, n, 4)) + return NULL; + + /* emit TEX instruction; Child[1] is the texcoord */ + inst = emit_instruction(emitInfo, + opcode, + n->Store, + n->Children[1]->Store, + NULL, + NULL); + + inst->TexShadow = shadow; + + /* Store->Index is the uniform/sampler index */ + assert(n->Children[0]->Store->Index >= 0); + inst->TexSrcUnit = n->Children[0]->Store->Index; + inst->TexSrcTarget = n->Children[0]->Store->TexTarget; + + /* mark the sampler as being used */ + _mesa_use_uniform(emitInfo->prog->Parameters, + (char *) n->Children[0]->Var->a_name); + + return inst; +} + + +/** + * Assignment/copy + */ +static struct prog_instruction * +emit_copy(slang_emit_info *emitInfo, slang_ir_node *n) +{ + struct prog_instruction *inst; + + assert(n->Opcode == IR_COPY); + + /* lhs */ + emit(emitInfo, n->Children[0]); + if (!n->Children[0]->Store || n->Children[0]->Store->Index < 0) { + /* an error should have been already recorded */ + return NULL; + } + + /* rhs */ + assert(n->Children[1]); + inst = emit(emitInfo, n->Children[1]); + + if (!n->Children[1]->Store || n->Children[1]->Store->Index < 0) { + if (!emitInfo->log->text && !emitInfo->UnresolvedFunctions) { + /* XXX this error should have been caught in slang_codegen.c */ + slang_info_log_error(emitInfo->log, "invalid assignment"); + } + return NULL; + } + + assert(n->Children[1]->Store->Index >= 0); + + /*assert(n->Children[0]->Store->Size == n->Children[1]->Store->Size);*/ + + n->Store = n->Children[0]->Store; + + if (n->Store->File == PROGRAM_SAMPLER) { + /* no code generated for sampler assignments, + * just copy the sampler index/target at compile time. + */ + n->Store->Index = n->Children[1]->Store->Index; + n->Store->TexTarget = n->Children[1]->Store->TexTarget; + return NULL; + } + +#if PEEPHOLE_OPTIMIZATIONS + if (inst && + (n->Children[1]->Opcode != IR_SWIZZLE) && + _slang_is_temp(emitInfo->vt, n->Children[1]->Store) && + (inst->DstReg.File == n->Children[1]->Store->File) && + (inst->DstReg.Index == n->Children[1]->Store->Index) && + !n->Children[0]->Store->IsIndirect && + n->Children[0]->Store->Size <= 4) { + /* Peephole optimization: + * The Right-Hand-Side has its results in a temporary place. + * Modify the RHS (and the prev instruction) to store its results + * in the destination specified by n->Children[0]. + * Then, this MOVE is a no-op. + * Ex: + * MUL tmp, x, y; + * MOV a, tmp; + * becomes: + * MUL a, x, y; + */ + + /* fixup the previous instruction (which stored the RHS result) */ + assert(n->Children[0]->Store->Index >= 0); + storage_to_dst_reg(&inst->DstReg, n->Children[0]->Store); + return inst; + } + else +#endif + { + if (n->Children[0]->Store->Size > 4) { + /* move matrix/struct etc (block of registers) */ + slang_ir_storage dstStore = *n->Children[0]->Store; + slang_ir_storage srcStore = *n->Children[1]->Store; + GLint size = srcStore.Size; + ASSERT(n->Children[1]->Store->Swizzle == SWIZZLE_NOOP); + dstStore.Size = 4; + srcStore.Size = 4; + while (size >= 4) { + inst = emit_instruction(emitInfo, OPCODE_MOV, + &dstStore, + &srcStore, + NULL, + NULL); + inst_comment(inst, "IR_COPY block"); + srcStore.Index++; + dstStore.Index++; + size -= 4; + } + } + else { + /* single register move */ + char *srcAnnot, *dstAnnot; + assert(n->Children[0]->Store->Index >= 0); + inst = emit_instruction(emitInfo, OPCODE_MOV, + n->Children[0]->Store, /* dest */ + n->Children[1]->Store, + NULL, + NULL); + dstAnnot = storage_annotation(n->Children[0], emitInfo->prog); + srcAnnot = storage_annotation(n->Children[1], emitInfo->prog); + inst->Comment = instruction_annotation(inst->Opcode, dstAnnot, + srcAnnot, NULL, NULL); + } + free_node_storage(emitInfo->vt, n->Children[1]); + return inst; + } +} + + +/** + * An IR_COND node wraps a boolean expression which is used by an + * IF or WHILE test. This is where we'll set condition codes, if needed. + */ +static struct prog_instruction * +emit_cond(slang_emit_info *emitInfo, slang_ir_node *n) +{ + struct prog_instruction *inst; + + assert(n->Opcode == IR_COND); + + if (!n->Children[0]) + return NULL; + + /* emit code for the expression */ + inst = emit(emitInfo, n->Children[0]); + + if (!n->Children[0]->Store) { + /* error recovery */ + return NULL; + } + + assert(n->Children[0]->Store); + /*assert(n->Children[0]->Store->Size == 1);*/ + + if (emitInfo->EmitCondCodes) { + if (inst && + n->Children[0]->Store && + inst->DstReg.File == n->Children[0]->Store->File && + inst->DstReg.Index == n->Children[0]->Store->Index) { + /* The previous instruction wrote to the register who's value + * we're testing. Just fix that instruction so that the + * condition codes are computed. + */ + inst->CondUpdate = GL_TRUE; + n->Store = n->Children[0]->Store; + return inst; + } + else { + /* This'll happen for things like "if (i) ..." where no code + * is normally generated for the expression "i". + * Generate a move instruction just to set condition codes. + */ + if (!alloc_node_storage(emitInfo, n, 1)) + return NULL; + inst = emit_instruction(emitInfo, OPCODE_MOV, + n->Store, /* dest */ + n->Children[0]->Store, + NULL, + NULL); + inst->CondUpdate = GL_TRUE; + inst_comment(inst, "COND expr"); + _slang_free_temp(emitInfo->vt, n->Store); + return inst; + } + } + else { + /* No-op: the boolean result of the expression is in a regular reg */ + n->Store = n->Children[0]->Store; + return inst; + } +} + + +/** + * Logical-NOT + */ +static struct prog_instruction * +emit_not(slang_emit_info *emitInfo, slang_ir_node *n) +{ + static const struct { + gl_inst_opcode op, opNot; + } operators[] = { + { OPCODE_SLT, OPCODE_SGE }, + { OPCODE_SLE, OPCODE_SGT }, + { OPCODE_SGT, OPCODE_SLE }, + { OPCODE_SGE, OPCODE_SLT }, + { OPCODE_SEQ, OPCODE_SNE }, + { OPCODE_SNE, OPCODE_SEQ }, + { 0, 0 } + }; + struct prog_instruction *inst; + slang_ir_storage zero; + GLuint i; + + /* child expr */ + inst = emit(emitInfo, n->Children[0]); + +#if PEEPHOLE_OPTIMIZATIONS + if (inst) { + /* if the prev instruction was a comparison instruction, invert it */ + for (i = 0; operators[i].op; i++) { + if (inst->Opcode == operators[i].op) { + inst->Opcode = operators[i].opNot; + n->Store = n->Children[0]->Store; + return inst; + } + } + } +#endif + + /* else, invert using SEQ (v = v == 0) */ + if (!alloc_node_storage(emitInfo, n, n->Children[0]->Store->Size)) + return NULL; + + constant_to_storage(emitInfo, 0.0, &zero); + inst = emit_instruction(emitInfo, + OPCODE_SEQ, + n->Store, + n->Children[0]->Store, + &zero, + NULL); + inst_comment(inst, "NOT"); + + free_node_storage(emitInfo->vt, n->Children[0]); + + return inst; +} + + +static struct prog_instruction * +emit_if(slang_emit_info *emitInfo, slang_ir_node *n) +{ + struct gl_program *prog = emitInfo->prog; + GLuint ifInstLoc, elseInstLoc = 0; + GLuint condWritemask = 0; + + /* emit condition expression code */ + { + struct prog_instruction *inst; + inst = emit(emitInfo, n->Children[0]); + if (emitInfo->EmitCondCodes) { + if (!inst) { + /* error recovery */ + return NULL; + } + condWritemask = inst->DstReg.WriteMask; + } + } + + if (!n->Children[0]->Store) + return NULL; + +#if 0 + assert(n->Children[0]->Store->Size == 1); /* a bool! */ +#endif + + ifInstLoc = prog->NumInstructions; + if (emitInfo->EmitHighLevelInstructions) { + if (emitInfo->EmitCondCodes) { + /* IF condcode THEN ... */ + struct prog_instruction *ifInst; + ifInst = new_instruction(emitInfo, OPCODE_IF); + ifInst->DstReg.CondMask = COND_NE; /* if cond is non-zero */ + /* only test the cond code (1 of 4) that was updated by the + * previous instruction. + */ + ifInst->DstReg.CondSwizzle = writemask_to_swizzle(condWritemask); + } + else { + /* IF src[0] THEN ... */ + emit_instruction(emitInfo, OPCODE_IF, + NULL, /* dst */ + n->Children[0]->Store, /* op0 */ + NULL, + NULL); + } + } + else { + /* conditional jump to else, or endif */ + struct prog_instruction *ifInst = new_instruction(emitInfo, OPCODE_BRA); + ifInst->DstReg.CondMask = COND_EQ; /* BRA if cond is zero */ + inst_comment(ifInst, "if zero"); + ifInst->DstReg.CondSwizzle = writemask_to_swizzle(condWritemask); + } + + /* if body */ + emit(emitInfo, n->Children[1]); + + if (n->Children[2]) { + /* have else body */ + elseInstLoc = prog->NumInstructions; + if (emitInfo->EmitHighLevelInstructions) { + (void) new_instruction(emitInfo, OPCODE_ELSE); + } + else { + /* jump to endif instruction */ + struct prog_instruction *inst; + inst = new_instruction(emitInfo, OPCODE_BRA); + inst_comment(inst, "else"); + inst->DstReg.CondMask = COND_TR; /* always branch */ + } + prog->Instructions[ifInstLoc].BranchTarget = prog->NumInstructions; + emit(emitInfo, n->Children[2]); + } + else { + /* no else body */ + prog->Instructions[ifInstLoc].BranchTarget = prog->NumInstructions; + } + + if (emitInfo->EmitHighLevelInstructions) { + (void) new_instruction(emitInfo, OPCODE_ENDIF); + } + + if (n->Children[2]) { + prog->Instructions[elseInstLoc].BranchTarget = prog->NumInstructions; + } + return NULL; +} + + +static struct prog_instruction * +emit_loop(slang_emit_info *emitInfo, slang_ir_node *n) +{ + struct gl_program *prog = emitInfo->prog; + struct prog_instruction *endInst; + GLuint beginInstLoc, tailInstLoc, endInstLoc; + slang_ir_node *ir; + + /* emit OPCODE_BGNLOOP */ + beginInstLoc = prog->NumInstructions; + if (emitInfo->EmitHighLevelInstructions) { + (void) new_instruction(emitInfo, OPCODE_BGNLOOP); + } + + /* body */ + emit(emitInfo, n->Children[0]); + + /* tail */ + tailInstLoc = prog->NumInstructions; + if (n->Children[1]) { + if (emitInfo->EmitComments) + emit_comment(emitInfo, "Loop tail code:"); + emit(emitInfo, n->Children[1]); + } + + endInstLoc = prog->NumInstructions; + if (emitInfo->EmitHighLevelInstructions) { + /* emit OPCODE_ENDLOOP */ + endInst = new_instruction(emitInfo, OPCODE_ENDLOOP); + } + else { + /* emit unconditional BRA-nch */ + endInst = new_instruction(emitInfo, OPCODE_BRA); + endInst->DstReg.CondMask = COND_TR; /* always true */ + } + /* ENDLOOP's BranchTarget points to the BGNLOOP inst */ + endInst->BranchTarget = beginInstLoc; + + if (emitInfo->EmitHighLevelInstructions) { + /* BGNLOOP's BranchTarget points to the ENDLOOP inst */ + prog->Instructions[beginInstLoc].BranchTarget = prog->NumInstructions -1; + } + + /* Done emitting loop code. Now walk over the loop's linked list of + * BREAK and CONT nodes, filling in their BranchTarget fields (which + * will point to the ENDLOOP+1 or BGNLOOP instructions, respectively). + */ + for (ir = n->List; ir; ir = ir->List) { + struct prog_instruction *inst = prog->Instructions + ir->InstLocation; + assert(inst->BranchTarget < 0); + if (ir->Opcode == IR_BREAK || + ir->Opcode == IR_BREAK_IF_TRUE) { + assert(inst->Opcode == OPCODE_BRK || + inst->Opcode == OPCODE_BRA); + /* go to instruction after end of loop */ + inst->BranchTarget = endInstLoc + 1; + } + else { + assert(ir->Opcode == IR_CONT || + ir->Opcode == IR_CONT_IF_TRUE); + assert(inst->Opcode == OPCODE_CONT || + inst->Opcode == OPCODE_BRA); + /* go to instruction at tail of loop */ + inst->BranchTarget = endInstLoc; + } + } + return NULL; +} + + +/** + * Unconditional "continue" or "break" statement. + * Either OPCODE_CONT, OPCODE_BRK or OPCODE_BRA will be emitted. + */ +static struct prog_instruction * +emit_cont_break(slang_emit_info *emitInfo, slang_ir_node *n) +{ + gl_inst_opcode opcode; + struct prog_instruction *inst; + + if (n->Opcode == IR_CONT) { + /* we need to execute the loop's tail code before doing CONT */ + assert(n->Parent); + assert(n->Parent->Opcode == IR_LOOP); + if (n->Parent->Children[1]) { + /* emit tail code */ + if (emitInfo->EmitComments) { + emit_comment(emitInfo, "continue - tail code:"); + } + emit(emitInfo, n->Parent->Children[1]); + } + } + + /* opcode selection */ + if (emitInfo->EmitHighLevelInstructions) { + opcode = (n->Opcode == IR_CONT) ? OPCODE_CONT : OPCODE_BRK; + } + else { + opcode = OPCODE_BRA; + } + n->InstLocation = emitInfo->prog->NumInstructions; + inst = new_instruction(emitInfo, opcode); + inst->DstReg.CondMask = COND_TR; /* always true */ + return inst; +} + + +/** + * Conditional "continue" or "break" statement. + * Either OPCODE_CONT, OPCODE_BRK or OPCODE_BRA will be emitted. + */ +static struct prog_instruction * +emit_cont_break_if_true(slang_emit_info *emitInfo, slang_ir_node *n) +{ + struct prog_instruction *inst; + + assert(n->Opcode == IR_CONT_IF_TRUE || + n->Opcode == IR_BREAK_IF_TRUE); + + /* evaluate condition expr, setting cond codes */ + inst = emit(emitInfo, n->Children[0]); + if (emitInfo->EmitCondCodes) { + assert(inst); + inst->CondUpdate = GL_TRUE; + } + + n->InstLocation = emitInfo->prog->NumInstructions; + + /* opcode selection */ + if (emitInfo->EmitHighLevelInstructions) { + const gl_inst_opcode opcode + = (n->Opcode == IR_CONT_IF_TRUE) ? OPCODE_CONT : OPCODE_BRK; + if (emitInfo->EmitCondCodes) { + /* Get the writemask from the previous instruction which set + * the condcodes. Use that writemask as the CondSwizzle. + */ + const GLuint condWritemask = inst->DstReg.WriteMask; + inst = new_instruction(emitInfo, opcode); + inst->DstReg.CondMask = COND_NE; + inst->DstReg.CondSwizzle = writemask_to_swizzle(condWritemask); + return inst; + } + else { + /* IF reg + * BRK/CONT; + * ENDIF + */ + GLint ifInstLoc; + ifInstLoc = emitInfo->prog->NumInstructions; + inst = emit_instruction(emitInfo, OPCODE_IF, + NULL, /* dest */ + n->Children[0]->Store, + NULL, + NULL); + n->InstLocation = emitInfo->prog->NumInstructions; + + inst = new_instruction(emitInfo, opcode); + inst = new_instruction(emitInfo, OPCODE_ENDIF); + + emitInfo->prog->Instructions[ifInstLoc].BranchTarget + = emitInfo->prog->NumInstructions; + return inst; + } + } + else { + const GLuint condWritemask = inst->DstReg.WriteMask; + assert(emitInfo->EmitCondCodes); + inst = new_instruction(emitInfo, OPCODE_BRA); + inst->DstReg.CondMask = COND_NE; + inst->DstReg.CondSwizzle = writemask_to_swizzle(condWritemask); + return inst; + } +} + + +/** + * Return the size of a swizzle mask given that some swizzle components + * may be NIL/undefined. For example: + * swizzle_size(".zzxx") = 4 + * swizzle_size(".xy??") = 2 + * swizzle_size(".w???") = 1 + */ +static GLuint +swizzle_size(GLuint swizzle) +{ + GLuint i; + for (i = 0; i < 4; i++) { + if (GET_SWZ(swizzle, i) == SWIZZLE_NIL) + return i; + } + return 4; +} + + +static struct prog_instruction * +emit_swizzle(slang_emit_info *emitInfo, slang_ir_node *n) +{ + struct prog_instruction *inst; + + inst = emit(emitInfo, n->Children[0]); + + if (!n->Store->Parent) { + /* this covers a case such as "(b ? p : q).x" */ + n->Store->Parent = n->Children[0]->Store; + assert(n->Store->Parent); + } + + { + const GLuint swizzle = n->Store->Swizzle; + /* new storage is parent storage with updated Swizzle + Size fields */ + _slang_copy_ir_storage(n->Store, n->Store->Parent); + /* Apply this node's swizzle to parent's storage */ + n->Store->Swizzle = _slang_swizzle_swizzle(n->Store->Swizzle, swizzle); + /* Update size */ + n->Store->Size = swizzle_size(n->Store->Swizzle); + } + + assert(!n->Store->Parent); + assert(n->Store->Index >= 0); + + return inst; +} + + +/** + * Dereference array element: element == array[index] + * This basically involves emitting code for computing the array index + * and updating the node/element's storage info. + */ +static struct prog_instruction * +emit_array_element(slang_emit_info *emitInfo, slang_ir_node *n) +{ + slang_ir_storage *arrayStore, *indexStore; + const int elemSize = n->Store->Size; /* number of floats */ + const GLint elemSizeVec = (elemSize + 3) / 4; /* number of vec4 */ + struct prog_instruction *inst; + + assert(n->Opcode == IR_ELEMENT); + assert(elemSize > 0); + + /* special case for built-in state variables, like light state */ + { + slang_ir_storage *root = n->Store; + assert(!root->Parent); + while (root->Parent) + root = root->Parent; + + if (root->File == PROGRAM_STATE_VAR) { + GLboolean direct; + GLint index = + _slang_alloc_statevar(n, emitInfo->prog->Parameters, &direct); + if (index < 0) { + /* error */ + return NULL; + } + if (direct) { + n->Store->Index = index; + return NULL; /* all done */ + } + } + } + + /* do codegen for array itself */ + emit(emitInfo, n->Children[0]); + arrayStore = n->Children[0]->Store; + + /* The initial array element storage is the array's storage, + * then modified below. + */ + _slang_copy_ir_storage(n->Store, arrayStore); + + + if (n->Children[1]->Opcode == IR_FLOAT) { + /* Constant array index */ + const GLint element = (GLint) n->Children[1]->Value[0]; + + /* this element's storage is the array's storage, plus constant offset */ + n->Store->Index += elemSizeVec * element; + } + else { + /* Variable array index */ + + /* do codegen for array index expression */ + emit(emitInfo, n->Children[1]); + indexStore = n->Children[1]->Store; + + if (indexStore->IsIndirect) { + /* need to put the array index into a temporary since we can't + * directly support a[b[i]] constructs. + */ + + + /*indexStore = tempstore();*/ + } + + + if (elemSize > 4) { + /* need to multiply array index by array element size */ + struct prog_instruction *inst; + slang_ir_storage *indexTemp; + slang_ir_storage elemSizeStore; + + /* allocate 1 float indexTemp */ + indexTemp = _slang_new_ir_storage(PROGRAM_TEMPORARY, -1, 1); + _slang_alloc_temp(emitInfo->vt, indexTemp); + + /* allocate a constant containing the element size */ + constant_to_storage(emitInfo, (float) elemSizeVec, &elemSizeStore); + + /* multiply array index by element size */ + inst = emit_instruction(emitInfo, + OPCODE_MUL, + indexTemp, /* dest */ + indexStore, /* the index */ + &elemSizeStore, + NULL); + + indexStore = indexTemp; + } + + if (arrayStore->IsIndirect) { + /* ex: in a[i][j], a[i] (the arrayStore) is indirect */ + /* Need to add indexStore to arrayStore->Indirect store */ + slang_ir_storage indirectArray; + slang_ir_storage *indexTemp; + + _slang_init_ir_storage(&indirectArray, + arrayStore->IndirectFile, + arrayStore->IndirectIndex, + 1, + arrayStore->IndirectSwizzle); + + /* allocate 1 float indexTemp */ + indexTemp = _slang_new_ir_storage(PROGRAM_TEMPORARY, -1, 1); + _slang_alloc_temp(emitInfo->vt, indexTemp); + + inst = emit_instruction(emitInfo, + OPCODE_ADD, + indexTemp, /* dest */ + indexStore, /* the index */ + &indirectArray, /* indirect array base */ + NULL); + + indexStore = indexTemp; + } + + /* update the array element storage info */ + n->Store->IsIndirect = GL_TRUE; + n->Store->IndirectFile = indexStore->File; + n->Store->IndirectIndex = indexStore->Index; + n->Store->IndirectSwizzle = indexStore->Swizzle; + } + + n->Store->Size = elemSize; + n->Store->Swizzle = _slang_var_swizzle(elemSize, 0); + + return NULL; /* no instruction */ +} + + +/** + * Resolve storage for accessing a structure field. + */ +static struct prog_instruction * +emit_struct_field(slang_emit_info *emitInfo, slang_ir_node *n) +{ + slang_ir_storage *root = n->Store; + GLint fieldOffset, fieldSize; + + assert(n->Opcode == IR_FIELD); + + assert(!root->Parent); + while (root->Parent) + root = root->Parent; + + /* If this is the field of a state var, allocate constant/uniform + * storage for it now if we haven't already. + * Note that we allocate storage (uniform/constant slots) for state + * variables here rather than at declaration time so we only allocate + * space for the ones that we actually use! + */ + if (root->File == PROGRAM_STATE_VAR) { + GLboolean direct; + GLint index = _slang_alloc_statevar(n, emitInfo->prog->Parameters, &direct); + if (index < 0) { + slang_info_log_error(emitInfo->log, "Error parsing state variable"); + return NULL; + } + if (direct) { + root->Index = index; + return NULL; /* all done */ + } + } + + /* do codegen for struct */ + emit(emitInfo, n->Children[0]); + assert(n->Children[0]->Store->Index >= 0); + + + fieldOffset = n->Store->Index; + fieldSize = n->Store->Size; + + _slang_copy_ir_storage(n->Store, n->Children[0]->Store); + + n->Store->Index = n->Children[0]->Store->Index + fieldOffset / 4; + n->Store->Size = fieldSize; + + switch (fieldSize) { + case 1: + { + GLint swz = fieldOffset % 4; + n->Store->Swizzle = MAKE_SWIZZLE4(swz, swz, swz, swz); + } + break; + case 2: + n->Store->Swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, + SWIZZLE_NIL, SWIZZLE_NIL); + break; + case 3: + n->Store->Swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, + SWIZZLE_Z, SWIZZLE_NIL); + break; + default: + n->Store->Swizzle = SWIZZLE_XYZW; + } + + assert(n->Store->Index >= 0); + + return NULL; /* no instruction */ +} + + +/** + * Emit code for a variable declaration. + * This usually doesn't result in any code generation, but just + * memory allocation. + */ +static struct prog_instruction * +emit_var_decl(slang_emit_info *emitInfo, slang_ir_node *n) +{ + assert(n->Store); + assert(n->Store->File != PROGRAM_UNDEFINED); + assert(n->Store->Size > 0); + /*assert(n->Store->Index < 0);*/ + + if (!n->Var || n->Var->isTemp) { + /* a nameless/temporary variable, will be freed after first use */ + /*NEW*/ + if (n->Store->Index < 0 && !_slang_alloc_temp(emitInfo->vt, n->Store)) { + slang_info_log_error(emitInfo->log, + "Ran out of registers, too many temporaries"); + return NULL; + } + } + else { + /* a regular variable */ + _slang_add_variable(emitInfo->vt, n->Var); + if (!_slang_alloc_var(emitInfo->vt, n->Store)) { + slang_info_log_error(emitInfo->log, + "Ran out of registers, too many variables"); + return NULL; + } + /* + printf("IR_VAR_DECL %s %d store %p\n", + (char*) n->Var->a_name, n->Store->Index, (void*) n->Store); + */ + assert(n->Var->store == n->Store); + } + if (emitInfo->EmitComments) { + /* emit NOP with comment describing the variable's storage location */ + char s[1000]; + sprintf(s, "TEMP[%d]%s = variable %s (size %d)", + n->Store->Index, + _mesa_swizzle_string(n->Store->Swizzle, 0, GL_FALSE), + (n->Var ? (char *) n->Var->a_name : "anonymous"), + n->Store->Size); + emit_comment(emitInfo, s); + } + return NULL; +} + + +/** + * Emit code for a reference to a variable. + * Actually, no code is generated but we may do some memory allocation. + * In particular, state vars (uniforms) are allocated on an as-needed basis. + */ +static struct prog_instruction * +emit_var_ref(slang_emit_info *emitInfo, slang_ir_node *n) +{ + assert(n->Store); + assert(n->Store->File != PROGRAM_UNDEFINED); + + if (n->Store->File == PROGRAM_STATE_VAR && n->Store->Index < 0) { + GLboolean direct; + GLint index = _slang_alloc_statevar(n, emitInfo->prog->Parameters, &direct); + if (index < 0) { + /* error */ + char s[100]; + /* XXX isn't this really an out of memory/resources error? */ + _mesa_snprintf(s, sizeof(s), "Undefined variable '%s'", + (char *) n->Var->a_name); + slang_info_log_error(emitInfo->log, s); + return NULL; + } + + n->Store->Index = index; + } + else if (n->Store->File == PROGRAM_UNIFORM || + n->Store->File == PROGRAM_SAMPLER) { + /* mark var as used */ + _mesa_use_uniform(emitInfo->prog->Parameters, (char *) n->Var->a_name); + } + else if (n->Store->File == PROGRAM_INPUT) { + assert(n->Store->Index >= 0); + emitInfo->prog->InputsRead |= (1 << n->Store->Index); + } + + if (n->Store->Index < 0) { + /* probably ran out of registers */ + return NULL; + } + assert(n->Store->Size > 0); + + return NULL; +} + + +static struct prog_instruction * +emit(slang_emit_info *emitInfo, slang_ir_node *n) +{ + struct prog_instruction *inst; + if (!n) + return NULL; + + if (emitInfo->log->error_flag) { + return NULL; + } + + if (n->Comment) { + inst = new_instruction(emitInfo, OPCODE_NOP); + inst->Comment = _mesa_strdup(n->Comment); + inst = NULL; + } + + switch (n->Opcode) { + case IR_SEQ: + /* sequence of two sub-trees */ + assert(n->Children[0]); + assert(n->Children[1]); + emit(emitInfo, n->Children[0]); + if (emitInfo->log->error_flag) + return NULL; + inst = emit(emitInfo, n->Children[1]); +#if 0 + assert(!n->Store); +#endif + n->Store = n->Children[1]->Store; + return inst; + + case IR_SCOPE: + /* new variable scope */ + _slang_push_var_table(emitInfo->vt); + inst = emit(emitInfo, n->Children[0]); + _slang_pop_var_table(emitInfo->vt); + return inst; + + case IR_VAR_DECL: + /* Variable declaration - allocate a register for it */ + inst = emit_var_decl(emitInfo, n); + return inst; + + case IR_VAR: + /* Reference to a variable + * Storage should have already been resolved/allocated. + */ + return emit_var_ref(emitInfo, n); + + case IR_ELEMENT: + return emit_array_element(emitInfo, n); + case IR_FIELD: + return emit_struct_field(emitInfo, n); + case IR_SWIZZLE: + return emit_swizzle(emitInfo, n); + + /* Simple arithmetic */ + /* unary */ + case IR_MOVE: + case IR_RSQ: + case IR_RCP: + case IR_FLOOR: + case IR_FRAC: + case IR_F_TO_I: + case IR_I_TO_F: + case IR_ABS: + case IR_SIN: + case IR_COS: + case IR_DDX: + case IR_DDY: + case IR_EXP: + case IR_EXP2: + case IR_LOG2: + case IR_NOISE1: + case IR_NOISE2: + case IR_NOISE3: + case IR_NOISE4: + case IR_NRM4: + case IR_NRM3: + /* binary */ + case IR_ADD: + case IR_SUB: + case IR_MUL: + case IR_DOT4: + case IR_DOT3: + case IR_DOT2: + case IR_CROSS: + case IR_MIN: + case IR_MAX: + case IR_SEQUAL: + case IR_SNEQUAL: + case IR_SGE: + case IR_SGT: + case IR_SLE: + case IR_SLT: + case IR_POW: + /* trinary operators */ + case IR_LRP: + return emit_arith(emitInfo, n); + + case IR_EQUAL: + case IR_NOTEQUAL: + return emit_compare(emitInfo, n); + + case IR_CLAMP: + return emit_clamp(emitInfo, n); + case IR_TEX: + case IR_TEXB: + case IR_TEXP: + case IR_TEX_SH: + case IR_TEXB_SH: + case IR_TEXP_SH: + return emit_tex(emitInfo, n); + case IR_NEG: + return emit_negation(emitInfo, n); + case IR_FLOAT: + /* find storage location for this float constant */ + n->Store->Index = _mesa_add_unnamed_constant(emitInfo->prog->Parameters, + n->Value, + n->Store->Size, + &n->Store->Swizzle); + if (n->Store->Index < 0) { + slang_info_log_error(emitInfo->log, "Ran out of space for constants"); + return NULL; + } + return NULL; + + case IR_COPY: + return emit_copy(emitInfo, n); + + case IR_COND: + return emit_cond(emitInfo, n); + + case IR_NOT: + return emit_not(emitInfo, n); + + case IR_LABEL: + return emit_label(emitInfo, n); + + case IR_KILL: + return emit_kill(emitInfo); + + case IR_CALL: + /* new variable scope for subroutines/function calls */ + _slang_push_var_table(emitInfo->vt); + inst = emit_fcall(emitInfo, n); + _slang_pop_var_table(emitInfo->vt); + return inst; + + case IR_IF: + return emit_if(emitInfo, n); + + case IR_LOOP: + return emit_loop(emitInfo, n); + case IR_BREAK_IF_TRUE: + case IR_CONT_IF_TRUE: + return emit_cont_break_if_true(emitInfo, n); + case IR_BREAK: + /* fall-through */ + case IR_CONT: + return emit_cont_break(emitInfo, n); + + case IR_BEGIN_SUB: + return new_instruction(emitInfo, OPCODE_BGNSUB); + case IR_END_SUB: + return new_instruction(emitInfo, OPCODE_ENDSUB); + case IR_RETURN: + return emit_return(emitInfo, n); + + case IR_NOP: + return NULL; + + default: + _mesa_problem(NULL, "Unexpected IR opcode in emit()\n"); + } + return NULL; +} + + +/** + * After code generation, any subroutines will be in separate program + * objects. This function appends all the subroutines onto the main + * program and resolves the linking of all the branch/call instructions. + * XXX this logic should really be part of the linking process... + */ +static void +_slang_resolve_subroutines(slang_emit_info *emitInfo) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_program *mainP = emitInfo->prog; + GLuint *subroutineLoc, i, total; + + subroutineLoc + = (GLuint *) _mesa_malloc(emitInfo->NumSubroutines * sizeof(GLuint)); + + /* total number of instructions */ + total = mainP->NumInstructions; + for (i = 0; i < emitInfo->NumSubroutines; i++) { + subroutineLoc[i] = total; + total += emitInfo->Subroutines[i]->NumInstructions; + } + + /* adjust BranchTargets within the functions */ + for (i = 0; i < emitInfo->NumSubroutines; i++) { + struct gl_program *sub = emitInfo->Subroutines[i]; + GLuint j; + for (j = 0; j < sub->NumInstructions; j++) { + struct prog_instruction *inst = sub->Instructions + j; + if (inst->Opcode != OPCODE_CAL && inst->BranchTarget >= 0) { + inst->BranchTarget += subroutineLoc[i]; + } + } + } + + /* append subroutines' instructions after main's instructions */ + mainP->Instructions = _mesa_realloc_instructions(mainP->Instructions, + mainP->NumInstructions, + total); + mainP->NumInstructions = total; + for (i = 0; i < emitInfo->NumSubroutines; i++) { + struct gl_program *sub = emitInfo->Subroutines[i]; + _mesa_copy_instructions(mainP->Instructions + subroutineLoc[i], + sub->Instructions, + sub->NumInstructions); + /* delete subroutine code */ + sub->Parameters = NULL; /* prevent double-free */ + _mesa_reference_program(ctx, &emitInfo->Subroutines[i], NULL); + } + + /* free subroutine list */ + if (emitInfo->Subroutines) { + _mesa_free(emitInfo->Subroutines); + emitInfo->Subroutines = NULL; + } + emitInfo->NumSubroutines = 0; + + /* Examine CAL instructions. + * At this point, the BranchTarget field of the CAL instruction is + * the number/id of the subroutine to call (an index into the + * emitInfo->Subroutines list). + * Translate that into an actual instruction location now. + */ + for (i = 0; i < mainP->NumInstructions; i++) { + struct prog_instruction *inst = mainP->Instructions + i; + if (inst->Opcode == OPCODE_CAL) { + const GLuint f = inst->BranchTarget; + inst->BranchTarget = subroutineLoc[f]; + } + } + + _mesa_free(subroutineLoc); +} + + + +/** + * Convert the IR tree into GPU instructions. + * \param n root of IR tree + * \param vt variable table + * \param prog program to put GPU instructions into + * \param pragmas controls codegen options + * \param withEnd if true, emit END opcode at end + * \param log log for emitting errors/warnings/info + */ +GLboolean +_slang_emit_code(slang_ir_node *n, slang_var_table *vt, + struct gl_program *prog, + const struct gl_sl_pragmas *pragmas, + GLboolean withEnd, + slang_info_log *log) +{ + GET_CURRENT_CONTEXT(ctx); + GLboolean success; + slang_emit_info emitInfo; + GLuint maxUniforms; + + emitInfo.log = log; + emitInfo.vt = vt; + emitInfo.prog = prog; + emitInfo.Subroutines = NULL; + emitInfo.NumSubroutines = 0; + emitInfo.MaxInstructions = prog->NumInstructions; + + emitInfo.EmitHighLevelInstructions = ctx->Shader.EmitHighLevelInstructions; + emitInfo.EmitCondCodes = ctx->Shader.EmitCondCodes; + emitInfo.EmitComments = ctx->Shader.EmitComments || pragmas->Debug; + emitInfo.EmitBeginEndSub = GL_TRUE; + + if (!emitInfo.EmitCondCodes) { + emitInfo.EmitHighLevelInstructions = GL_TRUE; + } + + /* Check uniform/constant limits */ + if (prog->Target == GL_FRAGMENT_PROGRAM_ARB) { + maxUniforms = ctx->Const.FragmentProgram.MaxUniformComponents / 4; + } + else { + assert(prog->Target == GL_VERTEX_PROGRAM_ARB); + maxUniforms = ctx->Const.VertexProgram.MaxUniformComponents / 4; + } + if (prog->Parameters->NumParameters > maxUniforms) { + slang_info_log_error(log, "Constant/uniform register limit exceeded " + "(max=%u vec4)", maxUniforms); + + return GL_FALSE; + } + + (void) emit(&emitInfo, n); + + /* finish up by adding the END opcode to program */ + if (withEnd) { + struct prog_instruction *inst; + inst = new_instruction(&emitInfo, OPCODE_END); + } + + _slang_resolve_subroutines(&emitInfo); + + success = GL_TRUE; + +#if 0 + printf("*********** End emit code (%u inst):\n", prog->NumInstructions); + _mesa_print_program(prog); + _mesa_print_program_parameters(ctx,prog); +#endif + + return success; +} diff --git a/mesalib/src/mesa/shader/slang/slang_emit.h b/mesalib/src/mesa/shader/slang/slang_emit.h new file mode 100644 index 000000000..ab4c202d6 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_emit.h @@ -0,0 +1,51 @@ +/* + * Mesa 3-D graphics library + * Version: 7.1 + * + * Copyright (C) 2005-2008 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef SLANG_EMIT_H +#define SLANG_EMIT_H + + +#include "main/imports.h" +#include "slang_compile.h" +#include "slang_ir.h" +#include "main/mtypes.h" + + +extern GLuint +_slang_swizzle_swizzle(GLuint swz1, GLuint swz2); + + +extern GLuint +_slang_var_swizzle(GLint size, GLint comp); + + +extern GLboolean +_slang_emit_code(slang_ir_node *n, slang_var_table *vartable, + struct gl_program *prog, + const struct gl_sl_pragmas *pragmas, + GLboolean withEnd, + slang_info_log *log); + + +#endif /* SLANG_EMIT_H */ diff --git a/mesalib/src/mesa/shader/slang/slang_ir.c b/mesalib/src/mesa/shader/slang/slang_ir.c new file mode 100644 index 000000000..1c7f7474e --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_ir.c @@ -0,0 +1,497 @@ +/* + * Mesa 3-D graphics library + * + * Copyright (C) 2005-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +#include "main/imports.h" +#include "main/context.h" +#include "slang_ir.h" +#include "slang_mem.h" +#include "shader/prog_instruction.h" +#include "shader/prog_print.h" + + +static const slang_ir_info IrInfo[] = { + /* binary ops */ + { IR_ADD, "IR_ADD", OPCODE_ADD, 4, 2 }, + { IR_SUB, "IR_SUB", OPCODE_SUB, 4, 2 }, + { IR_MUL, "IR_MUL", OPCODE_MUL, 4, 2 }, + { IR_DIV, "IR_DIV", OPCODE_NOP, 0, 2 }, /* XXX broke */ + { IR_DOT4, "IR_DOT4", OPCODE_DP4, 1, 2 }, + { IR_DOT3, "IR_DOT3", OPCODE_DP3, 1, 2 }, + { IR_DOT2, "IR_DOT2", OPCODE_DP2, 1, 2 }, + { IR_NRM4, "IR_NRM4", OPCODE_NRM4, 1, 1 }, + { IR_NRM3, "IR_NRM3", OPCODE_NRM3, 1, 1 }, + { IR_CROSS, "IR_CROSS", OPCODE_XPD, 3, 2 }, + { IR_LRP, "IR_LRP", OPCODE_LRP, 4, 3 }, + { IR_MIN, "IR_MIN", OPCODE_MIN, 4, 2 }, + { IR_MAX, "IR_MAX", OPCODE_MAX, 4, 2 }, + { IR_CLAMP, "IR_CLAMP", OPCODE_NOP, 4, 3 }, /* special case: emit_clamp() */ + { IR_SEQUAL, "IR_SEQUAL", OPCODE_SEQ, 4, 2 }, + { IR_SNEQUAL, "IR_SNEQUAL", OPCODE_SNE, 4, 2 }, + { IR_SGE, "IR_SGE", OPCODE_SGE, 4, 2 }, + { IR_SGT, "IR_SGT", OPCODE_SGT, 4, 2 }, + { IR_SLE, "IR_SLE", OPCODE_SLE, 4, 2 }, + { IR_SLT, "IR_SLT", OPCODE_SLT, 4, 2 }, + { IR_POW, "IR_POW", OPCODE_POW, 1, 2 }, + { IR_EQUAL, "IR_EQUAL", OPCODE_NOP, 1, 2 }, + { IR_NOTEQUAL, "IR_NOTEQUAL", OPCODE_NOP, 1, 2 }, + + /* unary ops */ + { IR_MOVE, "IR_MOVE", OPCODE_MOV, 4, 1 }, + { IR_I_TO_F, "IR_I_TO_F", OPCODE_MOV, 4, 1 }, /* int[4] to float[4] */ + { IR_F_TO_I, "IR_F_TO_I", OPCODE_TRUNC, 4, 1 }, + { IR_EXP, "IR_EXP", OPCODE_EXP, 1, 1 }, + { IR_EXP2, "IR_EXP2", OPCODE_EX2, 1, 1 }, + { IR_LOG2, "IR_LOG2", OPCODE_LG2, 1, 1 }, + { IR_RSQ, "IR_RSQ", OPCODE_RSQ, 1, 1 }, + { IR_RCP, "IR_RCP", OPCODE_RCP, 1, 1 }, + { IR_FLOOR, "IR_FLOOR", OPCODE_FLR, 4, 1 }, + { IR_FRAC, "IR_FRAC", OPCODE_FRC, 4, 1 }, + { IR_ABS, "IR_ABS", OPCODE_ABS, 4, 1 }, + { IR_NEG, "IR_NEG", OPCODE_NOP, 4, 1 }, /* special case: emit_negation() */ + { IR_DDX, "IR_DDX", OPCODE_DDX, 4, 1 }, + { IR_DDY, "IR_DDY", OPCODE_DDY, 4, 1 }, + { IR_SIN, "IR_SIN", OPCODE_SIN, 1, 1 }, + { IR_COS, "IR_COS", OPCODE_COS, 1, 1 }, + { IR_NOISE1, "IR_NOISE1", OPCODE_NOISE1, 1, 1 }, + { IR_NOISE2, "IR_NOISE2", OPCODE_NOISE2, 1, 1 }, + { IR_NOISE3, "IR_NOISE3", OPCODE_NOISE3, 1, 1 }, + { IR_NOISE4, "IR_NOISE4", OPCODE_NOISE4, 1, 1 }, + + /* other */ + { IR_SEQ, "IR_SEQ", OPCODE_NOP, 0, 0 }, + { IR_SCOPE, "IR_SCOPE", OPCODE_NOP, 0, 0 }, + { IR_LABEL, "IR_LABEL", OPCODE_NOP, 0, 0 }, + { IR_IF, "IR_IF", OPCODE_NOP, 0, 0 }, + { IR_KILL, "IR_KILL", OPCODE_NOP, 0, 0 }, + { IR_COND, "IR_COND", OPCODE_NOP, 0, 0 }, + { IR_CALL, "IR_CALL", OPCODE_NOP, 0, 0 }, + { IR_COPY, "IR_COPY", OPCODE_NOP, 0, 1 }, + { IR_NOT, "IR_NOT", OPCODE_NOP, 1, 1 }, + { IR_VAR, "IR_VAR", OPCODE_NOP, 0, 0 }, + { IR_VAR_DECL, "IR_VAR_DECL", OPCODE_NOP, 0, 0 }, + { IR_TEX, "IR_TEX", OPCODE_TEX, 4, 1 }, + { IR_TEXB, "IR_TEXB", OPCODE_TXB, 4, 1 }, + { IR_TEXP, "IR_TEXP", OPCODE_TXP, 4, 1 }, + { IR_TEX_SH, "IR_TEX_SH", OPCODE_TEX, 4, 1 }, + { IR_TEXB_SH, "IR_TEXB_SH", OPCODE_TXB, 4, 1 }, + { IR_TEXP_SH, "IR_TEXP_SH", OPCODE_TXP, 4, 1 }, + { IR_FLOAT, "IR_FLOAT", OPCODE_NOP, 0, 0 }, /* float literal */ + { IR_FIELD, "IR_FIELD", OPCODE_NOP, 0, 0 }, + { IR_ELEMENT, "IR_ELEMENT", OPCODE_NOP, 0, 0 }, + { IR_SWIZZLE, "IR_SWIZZLE", OPCODE_NOP, 0, 0 }, + { IR_NOP, "IR_NOP", OPCODE_NOP, 0, 0 }, + { 0, NULL, 0, 0, 0 } +}; + + +const slang_ir_info * +_slang_ir_info(slang_ir_opcode opcode) +{ + GLuint i; + for (i = 0; IrInfo[i].IrName; i++) { + if (IrInfo[i].IrOpcode == opcode) { + return IrInfo + i; + } + } + return NULL; +} + + +void +_slang_init_ir_storage(slang_ir_storage *st, + gl_register_file file, GLint index, GLint size, + GLuint swizzle) +{ + st->File = file; + st->Index = index; + st->Size = size; + st->Swizzle = swizzle; + st->Parent = NULL; + st->IsIndirect = GL_FALSE; +} + + +/** + * Return a new slang_ir_storage object. + */ +slang_ir_storage * +_slang_new_ir_storage(gl_register_file file, GLint index, GLint size) +{ + slang_ir_storage *st; + st = (slang_ir_storage *) _slang_alloc(sizeof(slang_ir_storage)); + if (st) { + st->File = file; + st->Index = index; + st->Size = size; + st->Swizzle = SWIZZLE_NOOP; + st->Parent = NULL; + st->IsIndirect = GL_FALSE; + } + return st; +} + + +/** + * Return a new slang_ir_storage object. + */ +slang_ir_storage * +_slang_new_ir_storage_swz(gl_register_file file, GLint index, GLint size, + GLuint swizzle) +{ + slang_ir_storage *st; + st = (slang_ir_storage *) _slang_alloc(sizeof(slang_ir_storage)); + if (st) { + st->File = file; + st->Index = index; + st->Size = size; + st->Swizzle = swizzle; + st->Parent = NULL; + st->IsIndirect = GL_FALSE; + } + return st; +} + + +/** + * Return a new slang_ir_storage object. + */ +slang_ir_storage * +_slang_new_ir_storage_relative(GLint index, GLint size, + slang_ir_storage *parent) +{ + slang_ir_storage *st; + st = (slang_ir_storage *) _slang_alloc(sizeof(slang_ir_storage)); + if (st) { + st->File = PROGRAM_UNDEFINED; + st->Index = index; + st->Size = size; + st->Swizzle = SWIZZLE_NOOP; + st->Parent = parent; + st->IsIndirect = GL_FALSE; + } + return st; +} + + +slang_ir_storage * +_slang_new_ir_storage_indirect(gl_register_file file, + GLint index, + GLint size, + gl_register_file indirectFile, + GLint indirectIndex, + GLuint indirectSwizzle) +{ + slang_ir_storage *st; + st = (slang_ir_storage *) _slang_alloc(sizeof(slang_ir_storage)); + if (st) { + st->File = file; + st->Index = index; + st->Size = size; + st->Swizzle = SWIZZLE_NOOP; + st->IsIndirect = GL_TRUE; + st->IndirectFile = indirectFile; + st->IndirectIndex = indirectIndex; + st->IndirectSwizzle = indirectSwizzle; + } + return st; +} + + +/** + * Allocate IR storage for a texture sampler. + * \param sampNum the sampler number/index + * \param texTarget one of TEXTURE_x_INDEX values + * \param size number of samplers (in case of sampler array) + */ +slang_ir_storage * +_slang_new_ir_storage_sampler(GLint sampNum, GLuint texTarget, GLint size) +{ + slang_ir_storage *st; + assert(texTarget < NUM_TEXTURE_TARGETS); + st = _slang_new_ir_storage(PROGRAM_SAMPLER, sampNum, size); + if (st) { + st->TexTarget = texTarget; + } + return st; +} + + + +/* XXX temporary function */ +void +_slang_copy_ir_storage(slang_ir_storage *dst, const slang_ir_storage *src) +{ + *dst = *src; + dst->Parent = NULL; +} + + + +static const char * +_slang_ir_name(slang_ir_opcode opcode) +{ + return _slang_ir_info(opcode)->IrName; +} + + + +#if 0 /* no longer needed with mempool */ +/** + * Since many IR nodes might point to the same IR storage info, we need + * to be careful when deleting things. + * Before deleting an IR tree, traverse it and do refcounting on the + * IR storage nodes. Use the refcount info during delete to free things + * properly. + */ +static void +_slang_refcount_storage(slang_ir_node *n) +{ + GLuint i; + if (!n) + return; + if (n->Store) + n->Store->RefCount++; + for (i = 0; i < 3; i++) + _slang_refcount_storage(n->Children[i]); +} +#endif + + +static void +_slang_free_ir(slang_ir_node *n) +{ + GLuint i; + if (!n) + return; + +#if 0 + if (n->Store) { + n->Store->RefCount--; + if (n->Store->RefCount == 0) { + _slang_free(n->Store); + n->Store = NULL; + } + } +#endif + + for (i = 0; i < 3; i++) + _slang_free_ir(n->Children[i]); + /* Do not free n->List since it's a child elsewhere */ + _slang_free(n); +} + + +/** + * Recursively free an IR tree. + */ +void +_slang_free_ir_tree(slang_ir_node *n) +{ +#if 0 + _slang_refcount_storage(n); +#endif + _slang_free_ir(n); +} + + +static const char * +storage_string(const slang_ir_storage *st) +{ + static const char *files[] = { + "TEMP", + "LOCAL_PARAM", + "ENV_PARAM", + "STATE", + "INPUT", + "OUTPUT", + "NAMED_PARAM", + "CONSTANT", + "UNIFORM", + "VARYING", + "WRITE_ONLY", + "ADDRESS", + "SAMPLER", + "UNDEFINED" + }; + static char s[100]; + assert(Elements(files) == PROGRAM_FILE_MAX); +#if 0 + if (st->Size == 1) + sprintf(s, "%s[%d]", files[st->File], st->Index); + else + sprintf(s, "%s[%d..%d]", files[st->File], st->Index, + st->Index + st->Size - 1); +#endif + assert(st->File < (GLint) (sizeof(files) / sizeof(files[0]))); + sprintf(s, "%s[%d]", files[st->File], st->Index); + return s; +} + + +static void +spaces(int n) +{ + while (n-- > 0) { + printf(" "); + } +} + + +void +_slang_print_ir_tree(const slang_ir_node *n, int indent) +{ +#define IND 0 + + if (!n) + return; +#if !IND + if (n->Opcode != IR_SEQ) +#else + printf("%3d:", indent); +#endif + spaces(indent); + + switch (n->Opcode) { + case IR_SEQ: +#if IND + printf("SEQ at %p\n", (void*) n); +#endif + assert(n->Children[0]); + assert(n->Children[1]); + _slang_print_ir_tree(n->Children[0], indent + IND); + _slang_print_ir_tree(n->Children[1], indent + IND); + break; + case IR_SCOPE: + printf("NEW SCOPE\n"); + assert(!n->Children[1]); + _slang_print_ir_tree(n->Children[0], indent + 3); + break; + case IR_COPY: + printf("COPY\n"); + _slang_print_ir_tree(n->Children[0], indent+3); + _slang_print_ir_tree(n->Children[1], indent+3); + break; + case IR_LABEL: + printf("LABEL: %s\n", n->Label->Name); + break; + case IR_COND: + printf("COND\n"); + _slang_print_ir_tree(n->Children[0], indent + 3); + break; + + case IR_IF: + printf("IF \n"); + _slang_print_ir_tree(n->Children[0], indent+3); + spaces(indent); + printf("THEN\n"); + _slang_print_ir_tree(n->Children[1], indent+3); + if (n->Children[2]) { + spaces(indent); + printf("ELSE\n"); + _slang_print_ir_tree(n->Children[2], indent+3); + } + spaces(indent); + printf("ENDIF\n"); + break; + + case IR_BEGIN_SUB: + printf("BEGIN_SUB\n"); + break; + case IR_END_SUB: + printf("END_SUB\n"); + break; + case IR_RETURN: + printf("RETURN\n"); + break; + case IR_CALL: + printf("CALL %s\n", n->Label->Name); + break; + + case IR_LOOP: + printf("LOOP\n"); + _slang_print_ir_tree(n->Children[0], indent+3); + if (n->Children[1]) { + spaces(indent); + printf("TAIL:\n"); + _slang_print_ir_tree(n->Children[1], indent+3); + } + spaces(indent); + printf("ENDLOOP\n"); + break; + case IR_CONT: + printf("CONT\n"); + break; + case IR_BREAK: + printf("BREAK\n"); + break; + case IR_BREAK_IF_TRUE: + printf("BREAK_IF_TRUE\n"); + _slang_print_ir_tree(n->Children[0], indent+3); + break; + case IR_CONT_IF_TRUE: + printf("CONT_IF_TRUE\n"); + _slang_print_ir_tree(n->Children[0], indent+3); + break; + + case IR_VAR: + printf("VAR %s%s at %s store %p\n", + (n->Var ? (char *) n->Var->a_name : "TEMP"), + _mesa_swizzle_string(n->Store->Swizzle, 0, 0), + storage_string(n->Store), (void*) n->Store); + break; + case IR_VAR_DECL: + printf("VAR_DECL %s (%p) at %s store %p\n", + (n->Var ? (char *) n->Var->a_name : "TEMP"), + (void*) n->Var, storage_string(n->Store), + (void*) n->Store); + break; + case IR_FIELD: + printf("FIELD %s of\n", n->Field); + _slang_print_ir_tree(n->Children[0], indent+3); + break; + case IR_FLOAT: + printf("FLOAT %g %g %g %g\n", + n->Value[0], n->Value[1], n->Value[2], n->Value[3]); + break; + case IR_I_TO_F: + printf("INT_TO_FLOAT\n"); + _slang_print_ir_tree(n->Children[0], indent+3); + break; + case IR_F_TO_I: + printf("FLOAT_TO_INT\n"); + _slang_print_ir_tree(n->Children[0], indent+3); + break; + case IR_SWIZZLE: + printf("SWIZZLE %s of (store %p) \n", + _mesa_swizzle_string(n->Store->Swizzle, 0, 0), (void*) n->Store); + _slang_print_ir_tree(n->Children[0], indent + 3); + break; + default: + printf("%s (%p, %p) (store %p)\n", _slang_ir_name(n->Opcode), + (void*) n->Children[0], (void*) n->Children[1], (void*) n->Store); + _slang_print_ir_tree(n->Children[0], indent+3); + _slang_print_ir_tree(n->Children[1], indent+3); + } +} diff --git a/mesalib/src/mesa/shader/slang/slang_ir.h b/mesalib/src/mesa/shader/slang/slang_ir.h new file mode 100644 index 000000000..e796693ed --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_ir.h @@ -0,0 +1,279 @@ +/* + * Mesa 3-D graphics library + * + * Copyright (C) 2005-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_ir.h + * Mesa GLSL Intermediate Representation tree types and constants. + * \author Brian Paul + */ + + +#ifndef SLANG_IR_H +#define SLANG_IR_H + + +#include "main/imports.h" +#include "slang_compile.h" +#include "slang_label.h" +#include "main/mtypes.h" + + +/** + * Intermediate Representation opcodes + */ +typedef enum +{ + IR_NOP = 0, + IR_SEQ, /* sequence (eval left, then right) */ + IR_SCOPE, /* new variable scope (one child) */ + + IR_LABEL, /* target of a jump or cjump */ + + IR_COND, /* conditional expression/predicate */ + + IR_IF, /* high-level IF/then/else */ + /* Children[0] = conditional expression */ + /* Children[1] = if-true part */ + /* Children[2] = if-else part, or NULL */ + + IR_BEGIN_SUB, /* begin subroutine */ + IR_END_SUB, /* end subroutine */ + IR_RETURN, /* return from subroutine */ + IR_CALL, /* call subroutine */ + + IR_LOOP, /* high-level loop-begin / loop-end */ + /* Children[0] = loop body */ + /* Children[1] = loop tail code, or NULL */ + + IR_CONT, /* continue loop */ + /* n->Parent = ptr to parent IR_LOOP Node */ + IR_BREAK, /* break loop */ + + IR_BREAK_IF_TRUE, /**< Children[0] = the condition expression */ + IR_CONT_IF_TRUE, + + IR_COPY, /**< assignment/copy */ + IR_MOVE, /**< assembly MOV instruction */ + + /* vector ops: */ + IR_ADD, /**< assembly ADD instruction */ + IR_SUB, + IR_MUL, + IR_DIV, + IR_DOT4, + IR_DOT3, + IR_DOT2, + IR_NRM4, + IR_NRM3, + IR_CROSS, /* vec3 cross product */ + IR_LRP, + IR_CLAMP, + IR_MIN, + IR_MAX, + IR_SEQUAL, /* Set if args are equal (vector) */ + IR_SNEQUAL, /* Set if args are not equal (vector) */ + IR_SGE, /* Set if greater or equal (vector) */ + IR_SGT, /* Set if greater than (vector) */ + IR_SLE, /* Set if less or equal (vector) */ + IR_SLT, /* Set if less than (vector) */ + IR_POW, /* x^y */ + IR_EXP, /* e^x */ + IR_EXP2, /* 2^x */ + IR_LOG2, /* log base 2 */ + IR_RSQ, /* 1/sqrt() */ + IR_RCP, /* reciprocol */ + IR_FLOOR, + IR_FRAC, + IR_ABS, /* absolute value */ + IR_NEG, /* negate */ + IR_DDX, /* derivative w.r.t. X */ + IR_DDY, /* derivative w.r.t. Y */ + IR_SIN, /* sine */ + IR_COS, /* cosine */ + IR_NOISE1, /* noise(x) */ + IR_NOISE2, /* noise(x, y) */ + IR_NOISE3, /* noise(x, y, z) */ + IR_NOISE4, /* noise(x, y, z, w) */ + + IR_EQUAL, /* boolean equality */ + IR_NOTEQUAL,/* boolean inequality */ + IR_NOT, /* boolean not */ + + IR_VAR, /* variable reference */ + IR_VAR_DECL,/* var declaration */ + + IR_ELEMENT, /* array element */ + IR_FIELD, /* struct field */ + IR_SWIZZLE, /* swizzled storage access */ + + IR_TEX, /* texture lookup */ + IR_TEXB, /* texture lookup with LOD bias */ + IR_TEXP, /* texture lookup with projection */ + + IR_TEX_SH, /* texture lookup, shadow compare */ + IR_TEXB_SH, /* texture lookup with LOD bias, shadow compare */ + IR_TEXP_SH, /* texture lookup with projection, shadow compare */ + + IR_FLOAT, + IR_I_TO_F, /* int[4] to float[4] conversion */ + IR_F_TO_I, /* float[4] to int[4] conversion */ + + IR_KILL /* fragment kill/discard */ +} slang_ir_opcode; + + +/** + * Describes where data/variables are stored in the various register files. + * + * In the simple case, the File, Index and Size fields indicate where + * a variable is stored. For example, a vec3 variable may be stored + * as (File=PROGRAM_TEMPORARY, Index=6, Size=3). Or, File[Index]. + * Or, a program input like color may be stored as + * (File=PROGRAM_INPUT,Index=3,Size=4); + * + * For single-float values, the Swizzle field indicates which component + * of the vector contains the float. + * + * If IsIndirect is set, the storage is accessed through an indirect + * register lookup. The value in question will be located at: + * File[Index + IndirectFile[IndirectIndex]] + * + * This is primary used for indexing arrays. For example, consider this + * GLSL code: + * uniform int i; + * float a[10]; + * float x = a[i]; + * + * here, storage for a[i] would be described by (File=PROGRAM_TEMPORAY, + * Index=aPos, IndirectFile=PROGRAM_UNIFORM, IndirectIndex=iPos), which + * would mean TEMP[aPos + UNIFORM[iPos]] + */ +struct slang_ir_storage_ +{ + gl_register_file File; /**< PROGRAM_TEMPORARY, PROGRAM_INPUT, etc */ + GLint Index; /**< -1 means unallocated */ + GLint Size; /**< number of floats or ints */ + GLuint Swizzle; /**< Swizzle AND writemask info */ + GLint RefCount; /**< Used during IR tree delete */ + + GLboolean RelAddr; /* we'll remove this eventually */ + + GLboolean IsIndirect; + gl_register_file IndirectFile; + GLint IndirectIndex; + GLuint IndirectSwizzle; + GLuint TexTarget; /**< If File==PROGRAM_SAMPLER, one of TEXTURE_x_INDEX */ + + /** If Parent is non-null, Index is relative to parent. + * The other fields are ignored. + */ + struct slang_ir_storage_ *Parent; +}; + +typedef struct slang_ir_storage_ slang_ir_storage; + + +/** + * Intermediate Representation (IR) tree node + * Basically a binary tree, but IR_LRP and IR_CLAMP have three children. + */ +typedef struct slang_ir_node_ +{ + slang_ir_opcode Opcode; + struct slang_ir_node_ *Children[3]; + slang_ir_storage *Store; /**< location of result of this operation */ + GLint InstLocation; /**< Location of instruction emitted for this node */ + + /** special fields depending on Opcode: */ + const char *Field; /**< If Opcode == IR_FIELD */ + GLfloat Value[4]; /**< If Opcode == IR_FLOAT */ + slang_variable *Var; /**< If Opcode == IR_VAR or IR_VAR_DECL */ + struct slang_ir_node_ *List; /**< For various linked lists */ + struct slang_ir_node_ *Parent; /**< Pointer to logical parent (ie. loop) */ + slang_label *Label; /**< Used for branches */ + const char *Comment; /**< If Opcode == IR_COMMENT */ +} slang_ir_node; + + + +/** + * Assembly and IR info + */ +typedef struct +{ + slang_ir_opcode IrOpcode; + const char *IrName; + gl_inst_opcode InstOpcode; + GLuint ResultSize, NumParams; +} slang_ir_info; + + + +extern const slang_ir_info * +_slang_ir_info(slang_ir_opcode opcode); + + +extern void +_slang_init_ir_storage(slang_ir_storage *st, + gl_register_file file, GLint index, GLint size, + GLuint swizzle); + +extern slang_ir_storage * +_slang_new_ir_storage(gl_register_file file, GLint index, GLint size); + + +extern slang_ir_storage * +_slang_new_ir_storage_swz(gl_register_file file, GLint index, GLint size, + GLuint swizzle); + +extern slang_ir_storage * +_slang_new_ir_storage_relative(GLint index, GLint size, + slang_ir_storage *parent); + + +extern slang_ir_storage * +_slang_new_ir_storage_indirect(gl_register_file file, + GLint index, + GLint size, + gl_register_file indirectFile, + GLint indirectIndex, + GLuint indirectSwizzle); + +extern slang_ir_storage * +_slang_new_ir_storage_sampler(GLint sampNum, GLuint texTarget, GLint size); + + +extern void +_slang_copy_ir_storage(slang_ir_storage *dst, const slang_ir_storage *src); + + +extern void +_slang_free_ir_tree(slang_ir_node *n); + + +extern void +_slang_print_ir_tree(const slang_ir_node *n, int indent); + + +#endif /* SLANG_IR_H */ diff --git a/mesalib/src/mesa/shader/slang/slang_label.c b/mesalib/src/mesa/shader/slang/slang_label.c new file mode 100644 index 000000000..1ca1ef0c7 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_label.c @@ -0,0 +1,104 @@ + + +/** + * Functions for managing instruction labels. + * Basically, this is used to manage the problem of forward branches where + * we have a branch instruciton but don't know the target address yet. + */ + + +#include "slang_label.h" +#include "slang_mem.h" + + + +slang_label * +_slang_label_new(const char *name) +{ + slang_label *l = (slang_label *) _slang_alloc(sizeof(slang_label)); + if (l) { + l->Name = _slang_strdup(name); + l->Location = -1; + } + return l; +} + +/** + * As above, but suffix the name with a unique number. + */ +slang_label * +_slang_label_new_unique(const char *name) +{ + static int id = 1; + slang_label *l = (slang_label *) _slang_alloc(sizeof(slang_label)); + if (l) { + l->Name = (char *) _slang_alloc(_mesa_strlen(name) + 10); + if (!l->Name) { + _mesa_free(l); + return NULL; + } + _mesa_sprintf(l->Name, "%s_%d", name, id); + id++; + l->Location = -1; + } + return l; +} + +void +_slang_label_delete(slang_label *l) +{ + if (l->Name) { + _slang_free(l->Name); + l->Name = NULL; + } + if (l->References) { + _slang_free(l->References); + l->References = NULL; + } + _slang_free(l); +} + + +void +_slang_label_add_reference(slang_label *l, GLuint inst) +{ + const GLuint oldSize = l->NumReferences * sizeof(GLuint); + assert(l->Location < 0); + l->References = _slang_realloc(l->References, + oldSize, oldSize + sizeof(GLuint)); + if (l->References) { + l->References[l->NumReferences] = inst; + l->NumReferences++; + } +} + + +GLint +_slang_label_get_location(const slang_label *l) +{ + return l->Location; +} + + +void +_slang_label_set_location(slang_label *l, GLint location, + struct gl_program *prog) +{ + GLuint i; + + assert(l->Location < 0); + assert(location >= 0); + + l->Location = location; + + /* for the instructions that were waiting to learn the label's location: */ + for (i = 0; i < l->NumReferences; i++) { + const GLuint j = l->References[i]; + prog->Instructions[j].BranchTarget = location; + } + + if (l->References) { + _slang_free(l->References); + l->References = NULL; + } +} diff --git a/mesalib/src/mesa/shader/slang/slang_label.h b/mesalib/src/mesa/shader/slang/slang_label.h new file mode 100644 index 000000000..87068ae7a --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_label.h @@ -0,0 +1,45 @@ +#ifndef SLANG_LABEL_H +#define SLANG_LABEL_H 1 + +#include "main/imports.h" +#include "main/mtypes.h" +#include "shader/prog_instruction.h" + + +struct slang_label_ +{ + char *Name; + GLint Location; + /** + * List of instruction references (numbered starting at zero) which need + * their BranchTarget field filled in with the location eventually + * assigned to the label. + */ + GLuint NumReferences; + GLuint *References; /** Array [NumReferences] */ +}; + +typedef struct slang_label_ slang_label; + + +extern slang_label * +_slang_label_new(const char *name); + +extern slang_label * +_slang_label_new_unique(const char *name); + +extern void +_slang_label_delete(slang_label *l); + +extern void +_slang_label_add_reference(slang_label *l, GLuint inst); + +extern GLint +_slang_label_get_location(const slang_label *l); + +extern void +_slang_label_set_location(slang_label *l, GLint location, + struct gl_program *prog); + + +#endif /* SLANG_LABEL_H */ diff --git a/mesalib/src/mesa/shader/slang/slang_link.c b/mesalib/src/mesa/shader/slang/slang_link.c new file mode 100644 index 000000000..8f2b40d5d --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_link.c @@ -0,0 +1,898 @@ +/* + * Mesa 3-D graphics library + * Version: 7.3 + * + * Copyright (C) 2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_link.c + * GLSL linker + * \author Brian Paul + */ + +#include "main/imports.h" +#include "main/context.h" +#include "main/hash.h" +#include "main/macros.h" +#include "shader/program.h" +#include "shader/prog_instruction.h" +#include "shader/prog_parameter.h" +#include "shader/prog_print.h" +#include "shader/prog_statevars.h" +#include "shader/prog_uniform.h" +#include "shader/shader_api.h" +#include "slang_builtin.h" +#include "slang_link.h" + + +/** cast wrapper */ +static struct gl_vertex_program * +vertex_program(struct gl_program *prog) +{ + assert(prog->Target == GL_VERTEX_PROGRAM_ARB); + return (struct gl_vertex_program *) prog; +} + + +/** cast wrapper */ +static struct gl_fragment_program * +fragment_program(struct gl_program *prog) +{ + assert(prog->Target == GL_FRAGMENT_PROGRAM_ARB); + return (struct gl_fragment_program *) prog; +} + + +/** + * Record a linking error. + */ +static void +link_error(struct gl_shader_program *shProg, const char *msg) +{ + if (shProg->InfoLog) { + _mesa_free(shProg->InfoLog); + } + shProg->InfoLog = _mesa_strdup(msg); + shProg->LinkStatus = GL_FALSE; +} + + + +/** + * Check if the given bit is either set or clear in both bitfields. + */ +static GLboolean +bits_agree(GLbitfield flags1, GLbitfield flags2, GLbitfield bit) +{ + return (flags1 & bit) == (flags2 & bit); +} + + +/** + * Linking varying vars involves rearranging varying vars so that the + * vertex program's output varyings matches the order of the fragment + * program's input varyings. + * We'll then rewrite instructions to replace PROGRAM_VARYING with either + * PROGRAM_INPUT or PROGRAM_OUTPUT depending on whether it's a vertex or + * fragment shader. + * This is also where we set program Input/OutputFlags to indicate + * which inputs are centroid-sampled, invariant, etc. + */ +static GLboolean +link_varying_vars(GLcontext *ctx, + struct gl_shader_program *shProg, struct gl_program *prog) +{ + GLuint *map, i, firstVarying, newFile; + GLbitfield *inOutFlags; + + map = (GLuint *) malloc(prog->Varying->NumParameters * sizeof(GLuint)); + if (!map) + return GL_FALSE; + + /* Varying variables are treated like other vertex program outputs + * (and like other fragment program inputs). The position of the + * first varying differs for vertex/fragment programs... + * Also, replace File=PROGRAM_VARYING with File=PROGRAM_INPUT/OUTPUT. + */ + if (prog->Target == GL_VERTEX_PROGRAM_ARB) { + firstVarying = VERT_RESULT_VAR0; + newFile = PROGRAM_OUTPUT; + inOutFlags = prog->OutputFlags; + } + else { + assert(prog->Target == GL_FRAGMENT_PROGRAM_ARB); + firstVarying = FRAG_ATTRIB_VAR0; + newFile = PROGRAM_INPUT; + inOutFlags = prog->InputFlags; + } + + for (i = 0; i < prog->Varying->NumParameters; i++) { + /* see if this varying is in the linked varying list */ + const struct gl_program_parameter *var = prog->Varying->Parameters + i; + GLint j = _mesa_lookup_parameter_index(shProg->Varying, -1, var->Name); + if (j >= 0) { + /* varying is already in list, do some error checking */ + const struct gl_program_parameter *v = + &shProg->Varying->Parameters[j]; + if (var->Size != v->Size) { + link_error(shProg, "mismatched varying variable types"); + return GL_FALSE; + } + if (!bits_agree(var->Flags, v->Flags, PROG_PARAM_BIT_CENTROID)) { + char msg[100]; + _mesa_snprintf(msg, sizeof(msg), + "centroid modifier mismatch for '%s'", var->Name); + link_error(shProg, msg); + return GL_FALSE; + } + if (!bits_agree(var->Flags, v->Flags, PROG_PARAM_BIT_INVARIANT)) { + char msg[100]; + _mesa_snprintf(msg, sizeof(msg), + "invariant modifier mismatch for '%s'", var->Name); + link_error(shProg, msg); + return GL_FALSE; + } + } + else { + /* not already in linked list */ + j = _mesa_add_varying(shProg->Varying, var->Name, var->Size, + var->Flags); + } + + if (shProg->Varying->NumParameters > ctx->Const.MaxVarying) { + link_error(shProg, "Too many varying variables"); + return GL_FALSE; + } + + /* Map varying[i] to varying[j]. + * Note: the loop here takes care of arrays or large (sz>4) vars. + */ + { + GLint sz = var->Size; + while (sz > 0) { + inOutFlags[firstVarying + j] = var->Flags; + /*printf("Link varying from %d to %d\n", i, j);*/ + map[i++] = j++; + sz -= 4; + } + i--; /* go back one */ + } + } + + + /* OK, now scan the program/shader instructions looking for varying vars, + * replacing the old index with the new index. + */ + for (i = 0; i < prog->NumInstructions; i++) { + struct prog_instruction *inst = prog->Instructions + i; + GLuint j; + + if (inst->DstReg.File == PROGRAM_VARYING) { + inst->DstReg.File = newFile; + inst->DstReg.Index = map[ inst->DstReg.Index ] + firstVarying; + } + + for (j = 0; j < 3; j++) { + if (inst->SrcReg[j].File == PROGRAM_VARYING) { + inst->SrcReg[j].File = newFile; + inst->SrcReg[j].Index = map[ inst->SrcReg[j].Index ] + firstVarying; + } + } + } + + free(map); + + /* these will get recomputed before linking is completed */ + prog->InputsRead = 0x0; + prog->OutputsWritten = 0x0; + + return GL_TRUE; +} + + +/** + * Build the shProg->Uniforms list. + * This is basically a list/index of all uniforms found in either/both of + * the vertex and fragment shaders. + * + * About uniforms: + * Each uniform has two indexes, one that points into the vertex + * program's parameter array and another that points into the fragment + * program's parameter array. When the user changes a uniform's value + * we have to change the value in the vertex and/or fragment program's + * parameter array. + * + * This function will be called twice to set up the two uniform->parameter + * mappings. + * + * If a uniform is only present in the vertex program OR fragment program + * then the fragment/vertex parameter index, respectively, will be -1. + */ +static GLboolean +link_uniform_vars(GLcontext *ctx, + struct gl_shader_program *shProg, + struct gl_program *prog, + GLuint *numSamplers) +{ + GLuint samplerMap[200]; /* max number of samplers declared, not used */ + GLuint i; + + for (i = 0; i < prog->Parameters->NumParameters; i++) { + const struct gl_program_parameter *p = prog->Parameters->Parameters + i; + + /* + * XXX FIX NEEDED HERE + * We should also be adding a uniform if p->Type == PROGRAM_STATE_VAR. + * For example, modelview matrix, light pos, etc. + * Also, we need to update the state-var name-generator code to + * generate GLSL-style names, like "gl_LightSource[0].position". + * Furthermore, we'll need to fix the state-var's size/datatype info. + */ + + if ((p->Type == PROGRAM_UNIFORM || p->Type == PROGRAM_SAMPLER) + && p->Used) { + /* add this uniform, indexing into the target's Parameters list */ + struct gl_uniform *uniform = + _mesa_append_uniform(shProg->Uniforms, p->Name, prog->Target, i); + if (uniform) + uniform->Initialized = p->Initialized; + } + + /* The samplerMap[] table we build here is used to remap/re-index + * sampler references by TEX instructions. + */ + if (p->Type == PROGRAM_SAMPLER && p->Used) { + /* Allocate a new sampler index */ + GLuint oldSampNum = (GLuint) prog->Parameters->ParameterValues[i][0]; + GLuint newSampNum = *numSamplers; + if (newSampNum >= ctx->Const.MaxTextureImageUnits) { + char s[100]; + _mesa_sprintf(s, "Too many texture samplers (%u, max is %u)", + newSampNum, ctx->Const.MaxTextureImageUnits); + link_error(shProg, s); + return GL_FALSE; + } + /* save old->new mapping in the table */ + if (oldSampNum < Elements(samplerMap)) + samplerMap[oldSampNum] = newSampNum; + /* update parameter's sampler index */ + prog->Parameters->ParameterValues[i][0] = (GLfloat) newSampNum; + (*numSamplers)++; + } + } + + /* OK, now scan the program/shader instructions looking for texture + * instructions using sampler vars. Replace old sampler indexes with + * new ones. + */ + prog->SamplersUsed = 0x0; + for (i = 0; i < prog->NumInstructions; i++) { + struct prog_instruction *inst = prog->Instructions + i; + if (_mesa_is_tex_instruction(inst->Opcode)) { + /* here, inst->TexSrcUnit is really the sampler unit */ + const GLint oldSampNum = inst->TexSrcUnit; + +#if 0 + printf("====== remap sampler from %d to %d\n", + inst->TexSrcUnit, samplerMap[ inst->TexSrcUnit ]); +#endif + + if (oldSampNum < Elements(samplerMap)) { + const GLuint newSampNum = samplerMap[oldSampNum]; + inst->TexSrcUnit = newSampNum; + prog->SamplerTargets[newSampNum] = inst->TexSrcTarget; + prog->SamplersUsed |= (1 << newSampNum); + if (inst->TexShadow) { + prog->ShadowSamplers |= (1 << newSampNum); + } + } + } + } + + return GL_TRUE; +} + + +/** + * Resolve binding of generic vertex attributes. + * For example, if the vertex shader declared "attribute vec4 foobar" we'll + * allocate a generic vertex attribute for "foobar" and plug that value into + * the vertex program instructions. + * But if the user called glBindAttributeLocation(), those bindings will + * have priority. + */ +static GLboolean +_slang_resolve_attributes(struct gl_shader_program *shProg, + const struct gl_program *origProg, + struct gl_program *linkedProg) +{ + GLint attribMap[MAX_VERTEX_GENERIC_ATTRIBS]; + GLuint i, j; + GLbitfield usedAttributes; /* generics only, not legacy attributes */ + GLbitfield inputsRead = 0x0; + + assert(origProg != linkedProg); + assert(origProg->Target == GL_VERTEX_PROGRAM_ARB); + assert(linkedProg->Target == GL_VERTEX_PROGRAM_ARB); + + if (!shProg->Attributes) + shProg->Attributes = _mesa_new_parameter_list(); + + if (linkedProg->Attributes) { + _mesa_free_parameter_list(linkedProg->Attributes); + } + linkedProg->Attributes = _mesa_new_parameter_list(); + + + /* Build a bitmask indicating which attribute indexes have been + * explicitly bound by the user with glBindAttributeLocation(). + */ + usedAttributes = 0x0; + for (i = 0; i < shProg->Attributes->NumParameters; i++) { + GLint attr = shProg->Attributes->Parameters[i].StateIndexes[0]; + usedAttributes |= (1 << attr); + } + + /* If gl_Vertex is used, that actually counts against the limit + * on generic vertex attributes. This avoids the ambiguity of + * whether glVertexAttrib4fv(0, v) sets legacy attribute 0 (vert pos) + * or generic attribute[0]. If gl_Vertex is used, we want the former. + */ + if (origProg->InputsRead & VERT_BIT_POS) { + usedAttributes |= 0x1; + } + + /* initialize the generic attribute map entries to -1 */ + for (i = 0; i < MAX_VERTEX_GENERIC_ATTRIBS; i++) { + attribMap[i] = -1; + } + + /* + * Scan program for generic attribute references + */ + for (i = 0; i < linkedProg->NumInstructions; i++) { + struct prog_instruction *inst = linkedProg->Instructions + i; + for (j = 0; j < 3; j++) { + if (inst->SrcReg[j].File == PROGRAM_INPUT) { + inputsRead |= (1 << inst->SrcReg[j].Index); + } + + if (inst->SrcReg[j].File == PROGRAM_INPUT && + inst->SrcReg[j].Index >= VERT_ATTRIB_GENERIC0) { + /* + * OK, we've found a generic vertex attribute reference. + */ + const GLint k = inst->SrcReg[j].Index - VERT_ATTRIB_GENERIC0; + + GLint attr = attribMap[k]; + + if (attr < 0) { + /* Need to figure out attribute mapping now. + */ + const char *name = origProg->Attributes->Parameters[k].Name; + const GLint size = origProg->Attributes->Parameters[k].Size; + const GLenum type =origProg->Attributes->Parameters[k].DataType; + GLint index; + + /* See if there's a user-defined attribute binding for + * this name. + */ + index = _mesa_lookup_parameter_index(shProg->Attributes, + -1, name); + if (index >= 0) { + /* Found a user-defined binding */ + attr = shProg->Attributes->Parameters[index].StateIndexes[0]; + } + else { + /* No user-defined binding, choose our own attribute number. + * Start at 1 since generic attribute 0 always aliases + * glVertex/position. + */ + for (attr = 0; attr < MAX_VERTEX_GENERIC_ATTRIBS; attr++) { + if (((1 << attr) & usedAttributes) == 0) + break; + } + if (attr == MAX_VERTEX_GENERIC_ATTRIBS) { + link_error(shProg, "Too many vertex attributes"); + return GL_FALSE; + } + + /* mark this attribute as used */ + usedAttributes |= (1 << attr); + } + + attribMap[k] = attr; + + /* Save the final name->attrib binding so it can be queried + * with glGetAttributeLocation(). + */ + _mesa_add_attribute(linkedProg->Attributes, name, + size, type, attr); + } + + assert(attr >= 0); + + /* update the instruction's src reg */ + inst->SrcReg[j].Index = VERT_ATTRIB_GENERIC0 + attr; + } + } + } + + /* Handle pre-defined attributes here (gl_Vertex, gl_Normal, etc). + * When the user queries the active attributes we need to include both + * the user-defined attributes and the built-in ones. + */ + for (i = VERT_ATTRIB_POS; i < VERT_ATTRIB_GENERIC0; i++) { + if (inputsRead & (1 << i)) { + _mesa_add_attribute(linkedProg->Attributes, + _slang_vert_attrib_name(i), + 4, /* size in floats */ + _slang_vert_attrib_type(i), + -1 /* attrib/input */); + } + } + + return GL_TRUE; +} + + +/** + * Scan program instructions to update the program's NumTemporaries field. + * Note: this implemenation relies on the code generator allocating + * temps in increasing order (0, 1, 2, ... ). + */ +static void +_slang_count_temporaries(struct gl_program *prog) +{ + GLuint i, j; + GLint maxIndex = -1; + + for (i = 0; i < prog->NumInstructions; i++) { + const struct prog_instruction *inst = prog->Instructions + i; + const GLuint numSrc = _mesa_num_inst_src_regs(inst->Opcode); + for (j = 0; j < numSrc; j++) { + if (inst->SrcReg[j].File == PROGRAM_TEMPORARY) { + if (maxIndex < inst->SrcReg[j].Index) + maxIndex = inst->SrcReg[j].Index; + } + if (inst->DstReg.File == PROGRAM_TEMPORARY) { + if (maxIndex < (GLint) inst->DstReg.Index) + maxIndex = inst->DstReg.Index; + } + } + } + + prog->NumTemporaries = (GLuint) (maxIndex + 1); +} + + +/** + * Scan program instructions to update the program's InputsRead and + * OutputsWritten fields. + */ +static void +_slang_update_inputs_outputs(struct gl_program *prog) +{ + GLuint i, j; + GLuint maxAddrReg = 0; + + prog->InputsRead = 0x0; + prog->OutputsWritten = 0x0; + + for (i = 0; i < prog->NumInstructions; i++) { + const struct prog_instruction *inst = prog->Instructions + i; + const GLuint numSrc = _mesa_num_inst_src_regs(inst->Opcode); + for (j = 0; j < numSrc; j++) { + if (inst->SrcReg[j].File == PROGRAM_INPUT) { + prog->InputsRead |= 1 << inst->SrcReg[j].Index; + } + else if (inst->SrcReg[j].File == PROGRAM_ADDRESS) { + maxAddrReg = MAX2(maxAddrReg, (GLuint) (inst->SrcReg[j].Index + 1)); + } + } + + if (inst->DstReg.File == PROGRAM_OUTPUT) { + prog->OutputsWritten |= 1 << inst->DstReg.Index; + if (inst->DstReg.RelAddr) { + /* If the output attribute is indexed with relative addressing + * we know that it must be a varying or texcoord such as + * gl_TexCoord[i] = v; In this case, mark all the texcoords + * or varying outputs as being written. It's not an error if + * a vertex shader writes varying vars that aren't used by the + * fragment shader. But it is an error for a fragment shader + * to use varyings that are not written by the vertex shader. + */ + if (prog->Target == GL_VERTEX_PROGRAM_ARB) { + if (inst->DstReg.Index == VERT_RESULT_TEX0) { + /* mark all texcoord outputs as written */ + const GLbitfield mask = + ((1 << MAX_TEXTURE_COORD_UNITS) - 1) << VERT_RESULT_TEX0; + prog->OutputsWritten |= mask; + } + else if (inst->DstReg.Index == VERT_RESULT_VAR0) { + /* mark all generic varying outputs as written */ + const GLbitfield mask = + ((1 << MAX_VARYING) - 1) << VERT_RESULT_VAR0; + prog->OutputsWritten |= mask; + } + } + } + } + else if (inst->DstReg.File == PROGRAM_ADDRESS) { + maxAddrReg = MAX2(maxAddrReg, inst->DstReg.Index + 1); + } + } + prog->NumAddressRegs = maxAddrReg; +} + + + +/** + * Remove extra #version directives from the concatenated source string. + * Disable the extra ones by converting first two chars to //, a comment. + * This is a bit of hack to work around a preprocessor bug that only + * allows one #version directive per source. + */ +static void +remove_extra_version_directives(GLchar *source) +{ + GLuint verCount = 0; + while (1) { + char *ver = _mesa_strstr(source, "#version"); + if (ver) { + verCount++; + if (verCount > 1) { + ver[0] = '/'; + ver[1] = '/'; + } + source += 8; + } + else { + break; + } + } +} + + + +/** + * Return a new shader whose source code is the concatenation of + * all the shader sources of the given type. + */ +static struct gl_shader * +concat_shaders(struct gl_shader_program *shProg, GLenum shaderType) +{ + struct gl_shader *newShader; + const struct gl_shader *firstShader = NULL; + GLuint shaderLengths[100]; + GLchar *source; + GLuint totalLen = 0, len = 0; + GLuint i; + + /* compute total size of new shader source code */ + for (i = 0; i < shProg->NumShaders; i++) { + const struct gl_shader *shader = shProg->Shaders[i]; + if (shader->Type == shaderType) { + shaderLengths[i] = _mesa_strlen(shader->Source); + totalLen += shaderLengths[i]; + if (!firstShader) + firstShader = shader; + } + } + + if (totalLen == 0) + return NULL; + + source = (GLchar *) _mesa_malloc(totalLen + 1); + if (!source) + return NULL; + + /* concatenate shaders */ + for (i = 0; i < shProg->NumShaders; i++) { + const struct gl_shader *shader = shProg->Shaders[i]; + if (shader->Type == shaderType) { + _mesa_memcpy(source + len, shader->Source, shaderLengths[i]); + len += shaderLengths[i]; + } + } + source[len] = '\0'; + /* + _mesa_printf("---NEW CONCATENATED SHADER---:\n%s\n------------\n", source); + */ + + remove_extra_version_directives(source); + + newShader = CALLOC_STRUCT(gl_shader); + newShader->Type = shaderType; + newShader->Source = source; + newShader->Pragmas = firstShader->Pragmas; + + return newShader; +} + + +/** + * Search the shader program's list of shaders to find the one that + * defines main(). + * This will involve shader concatenation and recompilation if needed. + */ +static struct gl_shader * +get_main_shader(GLcontext *ctx, + struct gl_shader_program *shProg, GLenum type) +{ + struct gl_shader *shader = NULL; + GLuint i; + + /* + * Look for a shader that defines main() and has no unresolved references. + */ + for (i = 0; i < shProg->NumShaders; i++) { + shader = shProg->Shaders[i]; + if (shader->Type == type && + shader->Main && + !shader->UnresolvedRefs) { + /* All set! */ + return shader; + } + } + + /* + * There must have been unresolved references during the original + * compilation. Try concatenating all the shaders of the given type + * and recompile that. + */ + shader = concat_shaders(shProg, type); + + if (shader) { + _slang_compile(ctx, shader); + + /* Finally, check if recompiling failed */ + if (!shader->CompileStatus || + !shader->Main || + shader->UnresolvedRefs) { + link_error(shProg, "Unresolved symbols"); + return NULL; + } + } + + return shader; +} + + +/** + * Shader linker. Currently: + * + * 1. The last attached vertex shader and fragment shader are linked. + * 2. Varying vars in the two shaders are combined so their locations + * agree between the vertex and fragment stages. They're treated as + * vertex program output attribs and as fragment program input attribs. + * 3. The vertex and fragment programs are cloned and modified to update + * src/dst register references so they use the new, linked varying + * storage locations. + */ +void +_slang_link(GLcontext *ctx, + GLhandleARB programObj, + struct gl_shader_program *shProg) +{ + const struct gl_vertex_program *vertProg = NULL; + const struct gl_fragment_program *fragProg = NULL; + GLuint numSamplers = 0; + GLuint i; + + _mesa_clear_shader_program_data(ctx, shProg); + + /* Initialize LinkStatus to "success". Will be cleared if error. */ + shProg->LinkStatus = GL_TRUE; + + /* check that all programs compiled successfully */ + for (i = 0; i < shProg->NumShaders; i++) { + if (!shProg->Shaders[i]->CompileStatus) { + link_error(shProg, "linking with uncompiled shader\n"); + return; + } + } + + shProg->Uniforms = _mesa_new_uniform_list(); + shProg->Varying = _mesa_new_parameter_list(); + + /* + * Find the vertex and fragment shaders which define main() + */ + { + struct gl_shader *vertShader, *fragShader; + vertShader = get_main_shader(ctx, shProg, GL_VERTEX_SHADER); + fragShader = get_main_shader(ctx, shProg, GL_FRAGMENT_SHADER); + if (vertShader) + vertProg = vertex_program(vertShader->Program); + if (fragShader) + fragProg = fragment_program(fragShader->Program); + if (!shProg->LinkStatus) + return; + } + +#if FEATURE_es2_glsl + /* must have both a vertex and fragment program for ES2 */ + if (!vertProg) { + link_error(shProg, "missing vertex shader\n"); + return; + } + if (!fragProg) { + link_error(shProg, "missing fragment shader\n"); + return; + } +#endif + + /* + * Make copies of the vertex/fragment programs now since we'll be + * changing src/dst registers after merging the uniforms and varying vars. + */ + _mesa_reference_vertprog(ctx, &shProg->VertexProgram, NULL); + if (vertProg) { + struct gl_vertex_program *linked_vprog = + vertex_program(_mesa_clone_program(ctx, &vertProg->Base)); + shProg->VertexProgram = linked_vprog; /* refcount OK */ + /* vertex program ID not significant; just set Id for debugging purposes */ + shProg->VertexProgram->Base.Id = shProg->Name; + ASSERT(shProg->VertexProgram->Base.RefCount == 1); + } + + _mesa_reference_fragprog(ctx, &shProg->FragmentProgram, NULL); + if (fragProg) { + struct gl_fragment_program *linked_fprog = + fragment_program(_mesa_clone_program(ctx, &fragProg->Base)); + shProg->FragmentProgram = linked_fprog; /* refcount OK */ + /* vertex program ID not significant; just set Id for debugging purposes */ + shProg->FragmentProgram->Base.Id = shProg->Name; + ASSERT(shProg->FragmentProgram->Base.RefCount == 1); + } + + /* link varying vars */ + if (shProg->VertexProgram) { + if (!link_varying_vars(ctx, shProg, &shProg->VertexProgram->Base)) + return; + } + if (shProg->FragmentProgram) { + if (!link_varying_vars(ctx, shProg, &shProg->FragmentProgram->Base)) + return; + } + + /* link uniform vars */ + if (shProg->VertexProgram) { + if (!link_uniform_vars(ctx, shProg, &shProg->VertexProgram->Base, + &numSamplers)) { + return; + } + } + if (shProg->FragmentProgram) { + if (!link_uniform_vars(ctx, shProg, &shProg->FragmentProgram->Base, + &numSamplers)) { + return; + } + } + + /*_mesa_print_uniforms(shProg->Uniforms);*/ + + if (shProg->VertexProgram) { + if (!_slang_resolve_attributes(shProg, &vertProg->Base, + &shProg->VertexProgram->Base)) { + return; + } + } + + if (shProg->VertexProgram) { + _slang_update_inputs_outputs(&shProg->VertexProgram->Base); + _slang_count_temporaries(&shProg->VertexProgram->Base); + if (!(shProg->VertexProgram->Base.OutputsWritten & (1 << VERT_RESULT_HPOS))) { + /* the vertex program did not compute a vertex position */ + link_error(shProg, + "gl_Position was not written by vertex shader\n"); + return; + } + } + if (shProg->FragmentProgram) { + _slang_count_temporaries(&shProg->FragmentProgram->Base); + _slang_update_inputs_outputs(&shProg->FragmentProgram->Base); + } + + /* Check that all the varying vars needed by the fragment shader are + * actually produced by the vertex shader. + */ + if (shProg->FragmentProgram) { + const GLbitfield varyingRead + = shProg->FragmentProgram->Base.InputsRead >> FRAG_ATTRIB_VAR0; + const GLbitfield varyingWritten = shProg->VertexProgram ? + shProg->VertexProgram->Base.OutputsWritten >> VERT_RESULT_VAR0 : 0x0; + if ((varyingRead & varyingWritten) != varyingRead) { + link_error(shProg, + "Fragment program using varying vars not written by vertex shader\n"); + return; + } + } + + /* check that gl_FragColor and gl_FragData are not both written to */ + if (shProg->FragmentProgram) { + GLbitfield outputsWritten = shProg->FragmentProgram->Base.OutputsWritten; + if ((outputsWritten & ((1 << FRAG_RESULT_COLOR))) && + (outputsWritten >= (1 << FRAG_RESULT_DATA0))) { + link_error(shProg, "Fragment program cannot write both gl_FragColor" + " and gl_FragData[].\n"); + return; + } + } + + + if (fragProg && shProg->FragmentProgram) { + /* Compute initial program's TexturesUsed info */ + _mesa_update_shader_textures_used(&shProg->FragmentProgram->Base); + + /* notify driver that a new fragment program has been compiled/linked */ + ctx->Driver.ProgramStringNotify(ctx, GL_FRAGMENT_PROGRAM_ARB, + &shProg->FragmentProgram->Base); + if (ctx->Shader.Flags & GLSL_DUMP) { + _mesa_printf("Mesa pre-link fragment program:\n"); + _mesa_print_program(&fragProg->Base); + _mesa_print_program_parameters(ctx, &fragProg->Base); + + _mesa_printf("Mesa post-link fragment program:\n"); + _mesa_print_program(&shProg->FragmentProgram->Base); + _mesa_print_program_parameters(ctx, &shProg->FragmentProgram->Base); + } + } + + if (vertProg && shProg->VertexProgram) { + /* Compute initial program's TexturesUsed info */ + _mesa_update_shader_textures_used(&shProg->VertexProgram->Base); + + /* notify driver that a new vertex program has been compiled/linked */ + ctx->Driver.ProgramStringNotify(ctx, GL_VERTEX_PROGRAM_ARB, + &shProg->VertexProgram->Base); + if (ctx->Shader.Flags & GLSL_DUMP) { + _mesa_printf("Mesa pre-link vertex program:\n"); + _mesa_print_program(&vertProg->Base); + _mesa_print_program_parameters(ctx, &vertProg->Base); + + _mesa_printf("Mesa post-link vertex program:\n"); + _mesa_print_program(&shProg->VertexProgram->Base); + _mesa_print_program_parameters(ctx, &shProg->VertexProgram->Base); + } + } + + /* Debug: */ + if (0) { + if (shProg->VertexProgram) + _mesa_postprocess_program(ctx, &shProg->VertexProgram->Base); + if (shProg->FragmentProgram) + _mesa_postprocess_program(ctx, &shProg->FragmentProgram->Base); + } + + if (ctx->Shader.Flags & GLSL_DUMP) { + _mesa_printf("Varying vars:\n"); + _mesa_print_parameter_list(shProg->Varying); + if (shProg->InfoLog) { + _mesa_printf("Info Log: %s\n", shProg->InfoLog); + } + } + + shProg->LinkStatus = (shProg->VertexProgram || shProg->FragmentProgram); +} + diff --git a/mesalib/src/mesa/shader/slang/slang_link.h b/mesalib/src/mesa/shader/slang/slang_link.h new file mode 100644 index 000000000..2b44d2078 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_link.h @@ -0,0 +1,37 @@ +/* + * Mesa 3-D graphics library + * Version: 7.2 + * + * Copyright (C) 2008 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef SLANG_LINK_H +#define SLANG_LINK_H 1 + +#include "slang_compile.h" + + +extern void +_slang_link(GLcontext *ctx, GLhandleARB h, + struct gl_shader_program *shProg); + + +#endif + diff --git a/mesalib/src/mesa/shader/slang/slang_log.c b/mesalib/src/mesa/shader/slang/slang_log.c new file mode 100644 index 000000000..d7d2b4fbf --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_log.c @@ -0,0 +1,134 @@ +/* + * Mesa 3-D graphics library + * Version: 7.3 + * + * Copyright (C) 2005-2007 Brian Paul All Rights Reserved. + * Copyright (C) 2009 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "main/imports.h" +#include "main/context.h" +#include "slang_log.h" +#include "slang_utility.h" + + + +static char *out_of_memory = "Error: Out of memory.\n"; + +void +slang_info_log_construct(slang_info_log * log) +{ + log->text = NULL; + log->dont_free_text = GL_FALSE; + log->error_flag = GL_FALSE; +} + +void +slang_info_log_destruct(slang_info_log * log) +{ + if (!log->dont_free_text) + _mesa_free(log->text); +} + +static int +slang_info_log_message(slang_info_log * log, const char *prefix, + const char *msg) +{ + GLuint size; + + if (log->dont_free_text) + return 0; + size = slang_string_length(msg) + 2; + if (prefix != NULL) + size += slang_string_length(prefix) + 2; + if (log->text != NULL) { + GLuint old_len = slang_string_length(log->text); + log->text = (char *) + _mesa_realloc(log->text, old_len + 1, old_len + size); + } + else { + log->text = (char *) (_mesa_malloc(size)); + if (log->text != NULL) + log->text[0] = '\0'; + } + if (log->text == NULL) + return 0; + if (prefix != NULL) { + slang_string_concat(log->text, prefix); + slang_string_concat(log->text, ": "); + } + slang_string_concat(log->text, msg); + slang_string_concat(log->text, "\n"); + + return 1; +} + +int +slang_info_log_print(slang_info_log * log, const char *msg, ...) +{ + va_list va; + char buf[1024]; + + va_start(va, msg); + _mesa_vsprintf(buf, msg, va); + va_end(va); + return slang_info_log_message(log, NULL, buf); +} + +int +slang_info_log_error(slang_info_log * log, const char *msg, ...) +{ + va_list va; + char buf[1024]; + + va_start(va, msg); + _mesa_vsprintf(buf, msg, va); + va_end(va); + log->error_flag = GL_TRUE; + if (slang_info_log_message(log, "Error", buf)) + return 1; + slang_info_log_memory(log); + return 0; +} + +int +slang_info_log_warning(slang_info_log * log, const char *msg, ...) +{ + va_list va; + char buf[1024]; + + va_start(va, msg); + _mesa_vsprintf(buf, msg, va); + va_end(va); + if (slang_info_log_message(log, "Warning", buf)) + return 1; + slang_info_log_memory(log); + return 0; +} + +void +slang_info_log_memory(slang_info_log * log) +{ + if (!slang_info_log_message(log, "Error", "Out of memory.")) { + log->dont_free_text = GL_TRUE; + log->error_flag = GL_TRUE; + log->text = out_of_memory; + } +} diff --git a/mesalib/src/mesa/shader/slang/slang_log.h b/mesalib/src/mesa/shader/slang/slang_log.h new file mode 100644 index 000000000..dcaba0285 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_log.h @@ -0,0 +1,57 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.3 + * + * Copyright (C) 2005-2007 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +#ifndef SLANG_LOG_H +#define SLANG_LOG_H + + +typedef struct slang_info_log_ +{ + char *text; + GLboolean dont_free_text; + GLboolean error_flag; +} slang_info_log; + + +extern void +slang_info_log_construct(slang_info_log *); + +extern void +slang_info_log_destruct(slang_info_log *); + +extern int +slang_info_log_print(slang_info_log *, const char *, ...); + +extern int +slang_info_log_error(slang_info_log *, const char *, ...); + +extern int +slang_info_log_warning(slang_info_log *, const char *, ...); + +extern void +slang_info_log_memory(slang_info_log *); + + +#endif /* SLANG_LOG_H */ diff --git a/mesalib/src/mesa/shader/slang/slang_mem.c b/mesalib/src/mesa/shader/slang/slang_mem.c new file mode 100644 index 000000000..9224578ed --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_mem.c @@ -0,0 +1,243 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.3 + * + * Copyright (C) 2005-2007 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_mem.c + * + * Memory manager for GLSL compiler. The general idea is to do all + * allocations out of a large pool then just free the pool when done + * compiling to avoid intricate malloc/free tracking and memory leaks. + * + * \author Brian Paul + */ + +#include "main/context.h" +#include "main/macros.h" +#include "slang_mem.h" + + +#define GRANULARITY 8 +#define ROUND_UP(B) ( ((B) + (GRANULARITY - 1)) & ~(GRANULARITY - 1) ) + + +/** If 1, use conventional malloc/free. Helpful for debugging */ +#define USE_MALLOC_FREE 0 + + +struct slang_mempool_ +{ + GLuint Size, Used, Count, Largest; + char *Data; + struct slang_mempool_ *Next; +}; + + +slang_mempool * +_slang_new_mempool(GLuint initialSize) +{ + slang_mempool *pool = (slang_mempool *) _mesa_calloc(sizeof(slang_mempool)); + if (pool) { + pool->Data = (char *) _mesa_calloc(initialSize); + /*printf("ALLOC MEMPOOL %d at %p\n", initialSize, pool->Data);*/ + if (!pool->Data) { + _mesa_free(pool); + return NULL; + } + pool->Size = initialSize; + pool->Used = 0; + } + return pool; +} + + +void +_slang_delete_mempool(slang_mempool *pool) +{ + GLuint total = 0; + while (pool) { + slang_mempool *next = pool->Next; + /* + printf("DELETE MEMPOOL %u / %u count=%u largest=%u\n", + pool->Used, pool->Size, pool->Count, pool->Largest); + */ + total += pool->Used; + _mesa_free(pool->Data); + _mesa_free(pool); + pool = next; + } + /*printf("TOTAL ALLOCATED: %u\n", total);*/ +} + + +#ifdef DEBUG +static void +check_zero(const char *addr, GLuint n) +{ + GLuint i; + for (i = 0; i < n; i++) { + assert(addr[i]==0); + } +} +#endif + + +#ifdef DEBUG +static GLboolean +is_valid_address(const slang_mempool *pool, void *addr) +{ + while (pool) { + if ((char *) addr >= pool->Data && + (char *) addr < pool->Data + pool->Used) + return GL_TRUE; + + pool = pool->Next; + } + return GL_FALSE; +} +#endif + + +/** + * Alloc 'bytes' from shader mempool. + */ +void * +_slang_alloc(GLuint bytes) +{ +#if USE_MALLOC_FREE + return _mesa_calloc(bytes); +#else + slang_mempool *pool; + GET_CURRENT_CONTEXT(ctx); + pool = (slang_mempool *) ctx->Shader.MemPool; + + if (bytes == 0) + bytes = 1; + + while (pool) { + if (pool->Used + bytes <= pool->Size) { + /* found room */ + void *addr = (void *) (pool->Data + pool->Used); +#ifdef DEBUG + check_zero((char*) addr, bytes); +#endif + pool->Used += ROUND_UP(bytes); + pool->Largest = MAX2(pool->Largest, bytes); + pool->Count++; + /*printf("alloc %u Used %u\n", bytes, pool->Used);*/ + return addr; + } + else if (pool->Next) { + /* try next block */ + pool = pool->Next; + } + else { + /* alloc new pool */ + const GLuint sz = MAX2(bytes, pool->Size); + pool->Next = _slang_new_mempool(sz); + if (!pool->Next) { + /* we're _really_ out of memory */ + return NULL; + } + else { + pool = pool->Next; + pool->Largest = bytes; + pool->Count++; + pool->Used = ROUND_UP(bytes); +#ifdef DEBUG + check_zero((char*) pool->Data, bytes); +#endif + return (void *) pool->Data; + } + } + } + return NULL; +#endif +} + + +void * +_slang_realloc(void *oldBuffer, GLuint oldSize, GLuint newSize) +{ +#if USE_MALLOC_FREE + return _mesa_realloc(oldBuffer, oldSize, newSize); +#else + GET_CURRENT_CONTEXT(ctx); + slang_mempool *pool = (slang_mempool *) ctx->Shader.MemPool; + (void) pool; + + if (newSize < oldSize) { + return oldBuffer; + } + else { + const GLuint copySize = (oldSize < newSize) ? oldSize : newSize; + void *newBuffer = _slang_alloc(newSize); + + if (oldBuffer) + ASSERT(is_valid_address(pool, oldBuffer)); + + if (newBuffer && oldBuffer && copySize > 0) + _mesa_memcpy(newBuffer, oldBuffer, copySize); + + return newBuffer; + } +#endif +} + + +/** + * Clone string, storing in current mempool. + */ +char * +_slang_strdup(const char *s) +{ + if (s) { + size_t l = _mesa_strlen(s); + char *s2 = (char *) _slang_alloc(l + 1); + if (s2) + _mesa_strcpy(s2, s); + return s2; + } + else { + return NULL; + } +} + + +/** + * Don't actually free memory, but mark it (for debugging). + */ +void +_slang_free(void *addr) +{ +#if USE_MALLOC_FREE + _mesa_free(addr); +#else + if (addr) { + GET_CURRENT_CONTEXT(ctx); + slang_mempool *pool = (slang_mempool *) ctx->Shader.MemPool; + (void) pool; + ASSERT(is_valid_address(pool, addr)); + } +#endif +} diff --git a/mesalib/src/mesa/shader/slang/slang_mem.h b/mesalib/src/mesa/shader/slang/slang_mem.h new file mode 100644 index 000000000..b5bfae247 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_mem.h @@ -0,0 +1,55 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.3 + * + * Copyright (C) 2005-2007 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +#ifndef SLANG_MEM_H +#define SLANG_MEM_H + + +#include "main/imports.h" + + +typedef struct slang_mempool_ slang_mempool; + + +extern slang_mempool * +_slang_new_mempool(GLuint initialSize); + +extern void +_slang_delete_mempool(slang_mempool *pool); + +extern void * +_slang_alloc(GLuint bytes); + +extern void * +_slang_realloc(void *oldBuffer, GLuint oldSize, GLuint newSize); + +extern char * +_slang_strdup(const char *s); + +extern void +_slang_free(void *addr); + + +#endif diff --git a/mesalib/src/mesa/shader/slang/slang_preprocess.c b/mesalib/src/mesa/shader/slang/slang_preprocess.c new file mode 100644 index 000000000..e9a24cc00 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_preprocess.c @@ -0,0 +1,1406 @@ +/* + * Mesa 3-D graphics library + * + * Copyright (C) 2005-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_preprocess.c + * slang preprocessor + * \author Michal Krol + */ + +#include "main/imports.h" +#include "shader/grammar/grammar_mesa.h" +#include "slang_preprocess.h" + +LONGSTRING static const char *slang_pp_directives_syn = +#include "library/slang_pp_directives_syn.h" +; + +LONGSTRING static const char *slang_pp_expression_syn = +#include "library/slang_pp_expression_syn.h" +; + +LONGSTRING static const char *slang_pp_version_syn = +#include "library/slang_pp_version_syn.h" +; + +static GLvoid +grammar_error_to_log (slang_info_log *log) +{ + char buf[1024]; + GLint pos; + + grammar_get_last_error ((byte *) (buf), sizeof (buf), &pos); + if (buf[0] == 0) { + _mesa_snprintf(buf, sizeof(buf), "Preprocessor error"); + } + slang_info_log_error (log, buf); +} + +GLboolean +_slang_preprocess_version (const char *text, GLuint *version, GLuint *eaten, slang_info_log *log) +{ + grammar id; + byte *prod, *I; + unsigned int size; + + id = grammar_load_from_text ((const byte *) (slang_pp_version_syn)); + if (id == 0) { + grammar_error_to_log (log); + return GL_FALSE; + } + + if (!grammar_fast_check (id, (const byte *) (text), &prod, &size, 8)) { + grammar_error_to_log (log); + grammar_destroy (id); + return GL_FALSE; + } + + /* there can be multiple #version directives - grab the last one */ + I = &prod[size - 6]; + *version = (GLuint) (I[0]) + (GLuint) (I[1]) * 100; + *eaten = (GLuint) (I[2]) + ((GLuint) (I[3]) << 8) + ((GLuint) (I[4]) << 16) + ((GLuint) (I[5]) << 24); + + grammar_destroy (id); + grammar_alloc_free (prod); + return GL_TRUE; +} + +/* + * The preprocessor does the following work. + * 1. Remove comments. Each comment block is replaced with a single space and if the + * block contains new-lines, they are preserved. This ensures that line numbers + * stay the same and if a comment block delimits two tokens, the are delitmited + * by the space after comment removal. + * 2. Remove preprocessor directives from the source string, checking their syntax and + * executing them if appropriate. Again, new-lines are preserved. + * 3. Expand macros. + * 4. Tokenize the source string by ensuring there is at least one space between every + * two adjacent tokens. + */ + +#define PP_ANNOTATE 0 + +static GLvoid +pp_annotate (slang_string *output, const char *fmt, ...) +{ +#if PP_ANNOTATE + va_list va; + char buffer[1024]; + + va_start (va, fmt); + _mesa_vsprintf (buffer, fmt, va); + va_end (va); + slang_string_pushs (output, buffer, _mesa_strlen (buffer)); +#else + (GLvoid) (output); + (GLvoid) (fmt); +#endif +} + + /* + * The expression is executed on a fixed-sized stack. The PUSH macro makes a runtime + * check if the stack is not overflown by too complex expressions. In that situation the + * GLSL preprocessor should report internal compiler error. + * The BINARYDIV makes a runtime check if the divider is not 0. If it is, it reports + * compilation error. + */ + +#define EXECUTION_STACK_SIZE 1024 + +#define PUSH(x)\ + do {\ + if (sp == 0) {\ + slang_info_log_error (elog, "internal compiler error: preprocessor execution stack overflow.");\ + return GL_FALSE;\ + }\ + stack[--sp] = x;\ + } while (GL_FALSE) + +#define POP(x)\ + do {\ + assert (sp < EXECUTION_STACK_SIZE);\ + x = stack[sp++];\ + } while (GL_FALSE) + +#define BINARY(op)\ + do {\ + GLint a, b;\ + POP(b);\ + POP(a);\ + PUSH(a op b);\ + } while (GL_FALSE) + +#define BINARYDIV(op)\ + do {\ + GLint a, b;\ + POP(b);\ + POP(a);\ + if (b == 0) {\ + slang_info_log_error (elog, "division by zero in preprocessor expression.");\ + return GL_FALSE;\ + }\ + PUSH(a op b);\ + } while (GL_FALSE) + +#define UNARY(op)\ + do {\ + GLint a;\ + POP(a);\ + PUSH(op a);\ + } while (GL_FALSE) + +#define OP_END 0 +#define OP_PUSHINT 1 +#define OP_LOGICALOR 2 +#define OP_LOGICALAND 3 +#define OP_OR 4 +#define OP_XOR 5 +#define OP_AND 6 +#define OP_EQUAL 7 +#define OP_NOTEQUAL 8 +#define OP_LESSEQUAL 9 +#define OP_GREATEREQUAL 10 +#define OP_LESS 11 +#define OP_GREATER 12 +#define OP_LEFTSHIFT 13 +#define OP_RIGHTSHIFT 14 +#define OP_ADD 15 +#define OP_SUBTRACT 16 +#define OP_MULTIPLY 17 +#define OP_DIVIDE 18 +#define OP_MODULUS 19 +#define OP_PLUS 20 +#define OP_MINUS 21 +#define OP_NEGATE 22 +#define OP_COMPLEMENT 23 + +static GLboolean +execute_expression (slang_string *output, const byte *code, GLuint *pi, GLint *result, + slang_info_log *elog) +{ + GLuint i = *pi; + GLint stack[EXECUTION_STACK_SIZE]; + GLuint sp = EXECUTION_STACK_SIZE; + + while (code[i] != OP_END) { + switch (code[i++]) { + case OP_PUSHINT: + i++; + PUSH(_mesa_atoi ((const char *) (&code[i]))); + i += _mesa_strlen ((const char *) (&code[i])) + 1; + break; + case OP_LOGICALOR: + BINARY(||); + break; + case OP_LOGICALAND: + BINARY(&&); + break; + case OP_OR: + BINARY(|); + break; + case OP_XOR: + BINARY(^); + break; + case OP_AND: + BINARY(&); + break; + case OP_EQUAL: + BINARY(==); + break; + case OP_NOTEQUAL: + BINARY(!=); + break; + case OP_LESSEQUAL: + BINARY(<=); + break; + case OP_GREATEREQUAL: + BINARY(>=); + break; + case OP_LESS: + BINARY(<); + break; + case OP_GREATER: + BINARY(>); + break; + case OP_LEFTSHIFT: + BINARY(<<); + break; + case OP_RIGHTSHIFT: + BINARY(>>); + break; + case OP_ADD: + BINARY(+); + break; + case OP_SUBTRACT: + BINARY(-); + break; + case OP_MULTIPLY: + BINARY(*); + break; + case OP_DIVIDE: + BINARYDIV(/); + break; + case OP_MODULUS: + BINARYDIV(%); + break; + case OP_PLUS: + UNARY(+); + break; + case OP_MINUS: + UNARY(-); + break; + case OP_NEGATE: + UNARY(!); + break; + case OP_COMPLEMENT: + UNARY(~); + break; + default: + assert (0); + } + } + + /* Write-back the index skipping the OP_END. */ + *pi = i + 1; + + /* There should be exactly one value left on the stack. This is our result. */ + POP(*result); + pp_annotate (output, "%d ", *result); + assert (sp == EXECUTION_STACK_SIZE); + return GL_TRUE; +} + +/* + * Function execute_expressions() executes up to 2 expressions. The second expression is there + * for the #line directive which takes 1 or 2 expressions that indicate line and file numbers. + * If it fails, it returns 0. If it succeeds, it returns the number of executed expressions. + */ + +#define EXP_END 0 +#define EXP_EXPRESSION 1 + +static GLuint +execute_expressions (slang_string *output, grammar eid, const byte *expr, GLint results[2], + slang_info_log *elog) +{ + GLint success; + byte *code; + GLuint size, count = 0; + + success = grammar_fast_check (eid, expr, &code, &size, 64); + if (success) { + GLuint i = 0; + + while (code[i++] == EXP_EXPRESSION) { + assert (count < 2); + + if (!execute_expression (output, code, &i, &results[count], elog)) { + count = 0; + break; + } + count++; + } + grammar_alloc_free (code); + } + else { + slang_info_log_error (elog, "syntax error in preprocessor expression.");\ + } + return count; +} + +/* + * The pp_symbol structure is used to hold macro definitions and macro formal parameters. The + * pp_symbols strcture is a collection of pp_symbol. It is used both for storing macro formal + * parameters and all global macro definitions. Making this unification wastes some memory, + * becuse macro formal parameters don't need further lists of symbols. We lose 8 bytes per + * formal parameter here, but making this we can use the same code to substitute macro parameters + * as well as macros in the source string. + */ + +typedef struct +{ + struct pp_symbol_ *symbols; + GLuint count; +} pp_symbols; + +static GLvoid +pp_symbols_init (pp_symbols *self) +{ + self->symbols = NULL; + self->count = 0; +} + +static GLvoid +pp_symbols_free (pp_symbols *); + +typedef struct pp_symbol_ +{ + slang_string name; + slang_string replacement; + pp_symbols parameters; +} pp_symbol; + +static GLvoid +pp_symbol_init (pp_symbol *self) +{ + slang_string_init (&self->name); + slang_string_init (&self->replacement); + pp_symbols_init (&self->parameters); +} + +static GLvoid +pp_symbol_free (pp_symbol *self) +{ + slang_string_free (&self->name); + slang_string_free (&self->replacement); + pp_symbols_free (&self->parameters); +} + +static GLvoid +pp_symbol_reset (pp_symbol *self) +{ + /* Leave symbol name intact. */ + slang_string_reset (&self->replacement); + pp_symbols_free (&self->parameters); + pp_symbols_init (&self->parameters); +} + +static GLvoid +pp_symbols_free (pp_symbols *self) +{ + GLuint i; + + for (i = 0; i < self->count; i++) + pp_symbol_free (&self->symbols[i]); + _mesa_free (self->symbols); +} + +static pp_symbol * +pp_symbols_push (pp_symbols *self) +{ + self->symbols = (pp_symbol *) (_mesa_realloc (self->symbols, self->count * sizeof (pp_symbol), + (self->count + 1) * sizeof (pp_symbol))); + if (self->symbols == NULL) + return NULL; + pp_symbol_init (&self->symbols[self->count]); + return &self->symbols[self->count++]; +} + +static GLboolean +pp_symbols_erase (pp_symbols *self, pp_symbol *symbol) +{ + assert (symbol >= self->symbols && symbol < self->symbols + self->count); + + self->count--; + pp_symbol_free (symbol); + if (symbol < self->symbols + self->count) + _mesa_memcpy (symbol, symbol + 1, sizeof (pp_symbol) * (self->symbols + self->count - symbol)); + self->symbols = (pp_symbol *) (_mesa_realloc (self->symbols, (self->count + 1) * sizeof (pp_symbol), + self->count * sizeof (pp_symbol))); + return self->symbols != NULL; +} + +static pp_symbol * +pp_symbols_find (pp_symbols *self, const char *name) +{ + GLuint i; + + for (i = 0; i < self->count; i++) + if (_mesa_strcmp (name, slang_string_cstr (&self->symbols[i].name)) == 0) + return &self->symbols[i]; + return NULL; +} + +/* + * The condition context of a single #if/#else/#endif level. Those can be nested, so there + * is a stack of condition contexts. + * There is a special global context on the bottom of the stack. It is there to simplify + * context handling. + */ + +typedef struct +{ + GLboolean current; /* The condition value of this level. */ + GLboolean effective; /* The effective product of current condition, outer level conditions + * and position within #if-#else-#endif sections. */ + GLboolean else_allowed; /* TRUE if in #if-#else section, FALSE if in #else-#endif section + * and for global context. */ + GLboolean endif_required; /* FALSE for global context only. */ +} pp_cond_ctx; + +/* Should be enuff. */ +#define CONDITION_STACK_SIZE 64 + +typedef struct +{ + pp_cond_ctx stack[CONDITION_STACK_SIZE]; + pp_cond_ctx *top; +} pp_cond_stack; + +static GLboolean +pp_cond_stack_push (pp_cond_stack *self, slang_info_log *elog) +{ + if (self->top == self->stack) { + slang_info_log_error (elog, "internal compiler error: preprocessor condition stack overflow."); + return GL_FALSE; + } + self->top--; + return GL_TRUE; +} + +static GLvoid +pp_cond_stack_reevaluate (pp_cond_stack *self) +{ + /* There must be at least 2 conditions on the stack - one global and one being evaluated. */ + assert (self->top <= &self->stack[CONDITION_STACK_SIZE - 2]); + + self->top->effective = self->top->current && self->top[1].effective; +} + + +/** + * Extension enables through #extension directive. + * NOTE: Currently, only enable/disable state is stored. + */ +typedef struct +{ + GLboolean ARB_draw_buffers; + GLboolean ARB_texture_rectangle; +} pp_ext; + + +/** + * Disable all extensions. Called at startup and on #extension all: disable. + */ +static GLvoid +pp_ext_disable_all(pp_ext *self) +{ + _mesa_memset(self, 0, sizeof(self)); +} + + +/** + * Called during preprocessor initialization to set the initial enable/disable + * state of extensions. + */ +static GLvoid +pp_ext_init(pp_ext *self, const struct gl_extensions *extensions) +{ + pp_ext_disable_all (self); + self->ARB_draw_buffers = GL_TRUE; + if (extensions->NV_texture_rectangle) + self->ARB_texture_rectangle = GL_TRUE; +} + +/** + * Called in response to #extension directives to enable/disable + * the named extension. + */ +static GLboolean +pp_ext_set(pp_ext *self, const char *name, GLboolean enable) +{ + if (_mesa_strcmp (name, "GL_ARB_draw_buffers") == 0) + self->ARB_draw_buffers = enable; + else if (_mesa_strcmp (name, "GL_ARB_texture_rectangle") == 0) + self->ARB_texture_rectangle = enable; + else + return GL_FALSE; + return GL_TRUE; +} + + +/** + * Called in response to #pragma. For example, "#pragma debug(on)" would + * call this function as pp_pragma("debug", "on"). + * \return GL_TRUE if pragma is valid, GL_FALSE if invalid + */ +static GLboolean +pp_pragma(struct gl_sl_pragmas *pragmas, const char *pragma, const char *param) +{ +#if 0 + printf("#pragma %s %s\n", pragma, param); +#endif + if (_mesa_strcmp(pragma, "optimize") == 0) { + if (!param) + return GL_FALSE; /* missing required param */ + if (_mesa_strcmp(param, "on") == 0) { + if (!pragmas->IgnoreOptimize) + pragmas->Optimize = GL_TRUE; + } + else if (_mesa_strcmp(param, "off") == 0) { + if (!pragmas->IgnoreOptimize) + pragmas->Optimize = GL_FALSE; + } + else { + return GL_FALSE; /* invalid param */ + } + } + else if (_mesa_strcmp(pragma, "debug") == 0) { + if (!param) + return GL_FALSE; /* missing required param */ + if (_mesa_strcmp(param, "on") == 0) { + if (!pragmas->IgnoreDebug) + pragmas->Debug = GL_TRUE; + } + else if (_mesa_strcmp(param, "off") == 0) { + if (!pragmas->IgnoreDebug) + pragmas->Debug = GL_FALSE; + } + else { + return GL_FALSE; /* invalid param */ + } + } + /* all other pragmas are silently ignored */ + return GL_TRUE; +} + + +/** + * The state of preprocessor: current line, file and version number, list + * of all defined macros and the #if/#endif context. + */ +typedef struct +{ + GLint line; + GLint file; + GLint version; + pp_symbols symbols; + pp_ext ext; + slang_info_log *elog; + pp_cond_stack cond; +} pp_state; + +static GLvoid +pp_state_init (pp_state *self, slang_info_log *elog, + const struct gl_extensions *extensions) +{ + self->line = 0; + self->file = 1; +#if FEATURE_es2_glsl + self->version = 100; +#else + self->version = 110; +#endif + pp_symbols_init (&self->symbols); + pp_ext_init (&self->ext, extensions); + self->elog = elog; + + /* Initialize condition stack and create the global context. */ + self->cond.top = &self->cond.stack[CONDITION_STACK_SIZE - 1]; + self->cond.top->current = GL_TRUE; + self->cond.top->effective = GL_TRUE; + self->cond.top->else_allowed = GL_FALSE; + self->cond.top->endif_required = GL_FALSE; +} + +static GLvoid +pp_state_free (pp_state *self) +{ + pp_symbols_free (&self->symbols); +} + +#define IS_FIRST_ID_CHAR(x) (((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || (x) == '_') +#define IS_NEXT_ID_CHAR(x) (IS_FIRST_ID_CHAR(x) || ((x) >= '0' && (x) <= '9')) +#define IS_WHITE(x) ((x) == ' ' || (x) == '\n') +#define IS_NULL(x) ((x) == '\0') + +#define SKIP_WHITE(x) do { while (IS_WHITE(*(x))) (x)++; } while (GL_FALSE) + +typedef struct +{ + slang_string *output; + const char *input; + pp_state *state; +} expand_state; + +static GLboolean +expand_defined (expand_state *e, slang_string *buffer) +{ + GLboolean in_paren = GL_FALSE; + const char *id; + + /* Parse the optional opening parenthesis. */ + SKIP_WHITE(e->input); + if (*e->input == '(') { + e->input++; + in_paren = GL_TRUE; + SKIP_WHITE(e->input); + } + + /* Parse operand. */ + if (!IS_FIRST_ID_CHAR(*e->input)) { + slang_info_log_error (e->state->elog, + "preprocess error: identifier expected after operator 'defined'."); + return GL_FALSE; + } + slang_string_reset (buffer); + slang_string_pushc (buffer, *e->input++); + while (IS_NEXT_ID_CHAR(*e->input)) + slang_string_pushc (buffer, *e->input++); + id = slang_string_cstr (buffer); + + /* Check if the operand is defined. Output 1 if it is defined, output 0 if not. */ + if (pp_symbols_find (&e->state->symbols, id) == NULL) + slang_string_pushs (e->output, " 0 ", 3); + else + slang_string_pushs (e->output, " 1 ", 3); + + /* Parse the closing parentehesis if the opening one was there. */ + if (in_paren) { + SKIP_WHITE(e->input); + if (*e->input != ')') { + slang_info_log_error (e->state->elog, "preprocess error: ')' expected."); + return GL_FALSE; + } + e->input++; + SKIP_WHITE(e->input); + } + return GL_TRUE; +} + +static GLboolean +expand (expand_state *, pp_symbols *); + +static GLboolean +expand_symbol (expand_state *e, pp_symbol *symbol) +{ + expand_state es; + + /* If the macro has some parameters, we need to parse them. */ + if (symbol->parameters.count != 0) { + GLuint i; + + /* Parse the opening parenthesis. */ + SKIP_WHITE(e->input); + if (*e->input != '(') { + slang_info_log_error (e->state->elog, "preprocess error: '(' expected."); + return GL_FALSE; + } + e->input++; + SKIP_WHITE(e->input); + + /* Parse macro actual parameters. This can be anything, separated by a colon. + */ + for (i = 0; i < symbol->parameters.count; i++) { + GLuint nested_paren_count = 0; /* track number of nested parentheses */ + + if (*e->input == ')') { + slang_info_log_error (e->state->elog, "preprocess error: unexpected ')'."); + return GL_FALSE; + } + + /* Eat all characters up to the comma or closing parentheses. */ + pp_symbol_reset (&symbol->parameters.symbols[i]); + while (!IS_NULL(*e->input)) { + /* Exit loop only when all nested parens have been eaten. */ + if (nested_paren_count == 0 && (*e->input == ',' || *e->input == ')')) + break; + + /* Actually count nested parens here. */ + if (*e->input == '(') + nested_paren_count++; + else if (*e->input == ')') + nested_paren_count--; + + slang_string_pushc (&symbol->parameters.symbols[i].replacement, *e->input++); + } + + /* If it was not the last paremeter, skip the comma. Otherwise, skip the + * closing parentheses. */ + if (i + 1 == symbol->parameters.count) { + /* This is the last paremeter - skip the closing parentheses. */ + if (*e->input != ')') { + slang_info_log_error (e->state->elog, "preprocess error: ')' expected."); + return GL_FALSE; + } + e->input++; + SKIP_WHITE(e->input); + } + else { + /* Skip the separating comma. */ + if (*e->input != ',') { + slang_info_log_error (e->state->elog, "preprocess error: ',' expected."); + return GL_FALSE; + } + e->input++; + SKIP_WHITE(e->input); + } + } + } + + /* Expand the macro. Use its parameters as a priority symbol list to expand + * macro parameters correctly. */ + es.output = e->output; + es.input = slang_string_cstr (&symbol->replacement); + es.state = e->state; + slang_string_pushc (e->output, ' '); + if (!expand (&es, &symbol->parameters)) + return GL_FALSE; + slang_string_pushc (e->output, ' '); + return GL_TRUE; +} + +/* + * Function expand() expands source text from <input> to <output>. The expansion is made using + * the list passed in <symbols> parameter. It allows us to expand macro formal parameters with + * actual parameters. The global list of symbols from pp state is used when doing a recursive + * call of expand(). + */ + +static GLboolean +expand (expand_state *e, pp_symbols *symbols) +{ + while (!IS_NULL(*e->input)) { + if (IS_FIRST_ID_CHAR(*e->input)) { + slang_string buffer; + const char *id; + + /* Parse the identifier. */ + slang_string_init (&buffer); + slang_string_pushc (&buffer, *e->input++); + while (IS_NEXT_ID_CHAR(*e->input)) + slang_string_pushc (&buffer, *e->input++); + id = slang_string_cstr (&buffer); + + /* Now check if the identifier is special in some way. The "defined" identifier is + * actually an operator that we must handle here and expand it either to " 0 " or " 1 ". + * The other identifiers start with "__" and we expand it to appropriate values + * taken from the preprocessor state. */ + if (_mesa_strcmp (id, "defined") == 0) { + if (!expand_defined (e, &buffer)) + return GL_FALSE; + } + else if (_mesa_strcmp (id, "__LINE__") == 0) { + slang_string_pushc (e->output, ' '); + slang_string_pushi (e->output, e->state->line); + slang_string_pushc (e->output, ' '); + } + else if (_mesa_strcmp (id, "__FILE__") == 0) { + slang_string_pushc (e->output, ' '); + slang_string_pushi (e->output, e->state->file); + slang_string_pushc (e->output, ' '); + } + else if (_mesa_strcmp (id, "__VERSION__") == 0) { + slang_string_pushc (e->output, ' '); + slang_string_pushi (e->output, e->state->version); + slang_string_pushc (e->output, ' '); + } +#if FEATURE_es2_glsl + else if (_mesa_strcmp (id, "GL_ES") == 0 || + _mesa_strcmp (id, "GL_FRAGMENT_PRECISION_HIGH") == 0) { + slang_string_pushc (e->output, ' '); + slang_string_pushi (e->output, '1'); + slang_string_pushc (e->output, ' '); + } +#endif + else { + pp_symbol *symbol; + + /* The list of symbols from <symbols> take precedence over the list from <state>. + * Note that in some cases this is the same list so avoid double look-up. */ + symbol = pp_symbols_find (symbols, id); + if (symbol == NULL && symbols != &e->state->symbols) + symbol = pp_symbols_find (&e->state->symbols, id); + + /* If the symbol was found, recursively expand its definition. */ + if (symbol != NULL) { + if (!expand_symbol (e, symbol)) { + slang_string_free (&buffer); + return GL_FALSE; + } + } + else { + slang_string_push (e->output, &buffer); + } + } + slang_string_free (&buffer); + } + else if (IS_WHITE(*e->input)) { + slang_string_pushc (e->output, *e->input++); + } + else { + while (!IS_WHITE(*e->input) && !IS_NULL(*e->input) && !IS_FIRST_ID_CHAR(*e->input)) + slang_string_pushc (e->output, *e->input++); + } + } + return GL_TRUE; +} + +static GLboolean +parse_if (slang_string *output, const byte *prod, GLuint *pi, GLint *result, pp_state *state, + grammar eid) +{ + const char *text; + GLuint len; + + text = (const char *) (&prod[*pi]); + len = _mesa_strlen (text); + + if (state->cond.top->effective) { + slang_string expr; + GLuint count; + GLint results[2]; + expand_state es; + + /* Expand the expression. */ + slang_string_init (&expr); + es.output = &expr; + es.input = text; + es.state = state; + if (!expand (&es, &state->symbols)) + return GL_FALSE; + + /* Execute the expression. */ + count = execute_expressions (output, eid, (const byte *) (slang_string_cstr (&expr)), + results, state->elog); + slang_string_free (&expr); + if (count != 1) + return GL_FALSE; + *result = results[0]; + } + else { + /* The directive is dead. */ + *result = 0; + } + + *pi += len + 1; + return GL_TRUE; +} + +#define ESCAPE_TOKEN 0 + +#define TOKEN_END 0 +#define TOKEN_DEFINE 1 +#define TOKEN_UNDEF 2 +#define TOKEN_IF 3 +#define TOKEN_ELSE 4 +#define TOKEN_ELIF 5 +#define TOKEN_ENDIF 6 +#define TOKEN_ERROR 7 +#define TOKEN_PRAGMA 8 +#define TOKEN_EXTENSION 9 +#define TOKEN_LINE 10 + +#define PARAM_END 0 +#define PARAM_PARAMETER 1 + +#define BEHAVIOR_REQUIRE 1 +#define BEHAVIOR_ENABLE 2 +#define BEHAVIOR_WARN 3 +#define BEHAVIOR_DISABLE 4 + +#define PRAGMA_NO_PARAM 0 +#define PRAGMA_PARAM 1 + + +static GLboolean +preprocess_source (slang_string *output, const char *source, + grammar pid, grammar eid, + slang_info_log *elog, + const struct gl_extensions *extensions, + struct gl_sl_pragmas *pragmas) +{ + static const char *predefined[] = { + "__FILE__", + "__LINE__", + "__VERSION__", +#if FEATURE_es2_glsl + "GL_ES", + "GL_FRAGMENT_PRECISION_HIGH", +#endif + NULL + }; + byte *prod; + GLuint size, i; + pp_state state; + + if (!grammar_fast_check (pid, (const byte *) (source), &prod, &size, 65536)) { + grammar_error_to_log (elog); + return GL_FALSE; + } + + pp_state_init (&state, elog, extensions); + + /* add the predefined symbols to the symbol table */ + for (i = 0; predefined[i]; i++) { + pp_symbol *symbol = NULL; + symbol = pp_symbols_push(&state.symbols); + assert(symbol); + slang_string_pushs(&symbol->name, + predefined[i], _mesa_strlen(predefined[i])); + } + + i = 0; + while (i < size) { + if (prod[i] != ESCAPE_TOKEN) { + if (state.cond.top->effective) { + slang_string input; + expand_state es; + + /* Eat only one line of source code to expand it. + * FIXME: This approach has one drawback. If a macro with parameters spans across + * multiple lines, the preprocessor will raise an error. */ + slang_string_init (&input); + while (prod[i] != '\0' && prod[i] != '\n') + slang_string_pushc (&input, prod[i++]); + if (prod[i] != '\0') + slang_string_pushc (&input, prod[i++]); + + /* Increment line number. */ + state.line++; + + es.output = output; + es.input = slang_string_cstr (&input); + es.state = &state; + if (!expand (&es, &state.symbols)) + goto error; + + slang_string_free (&input); + } + else { + /* Condition stack is disabled - keep track on line numbers and output only newlines. */ + if (prod[i] == '\n') { + state.line++; + /*pp_annotate (output, "%c", prod[i]);*/ + } + else { + /*pp_annotate (output, "%c", prod[i]);*/ + } + i++; + } + } + else { + const char *id; + GLuint idlen; + GLubyte token; + + i++; + token = prod[i++]; + switch (token) { + + case TOKEN_END: + /* End of source string. + * Check if all #ifs have been terminated by matching #endifs. + * On condition stack there should be only the global condition context. */ + if (state.cond.top->endif_required) { + slang_info_log_error (elog, "end of source without matching #endif."); + return GL_FALSE; + } + break; + + case TOKEN_DEFINE: + { + pp_symbol *symbol = NULL; + + /* Parse macro name. */ + id = (const char *) (&prod[i]); + idlen = _mesa_strlen (id); + if (state.cond.top->effective) { + pp_annotate (output, "// #define %s(", id); + + /* If the symbol is already defined, override it. */ + symbol = pp_symbols_find (&state.symbols, id); + if (symbol == NULL) { + symbol = pp_symbols_push (&state.symbols); + if (symbol == NULL) + goto error; + slang_string_pushs (&symbol->name, id, idlen); + } + else { + pp_symbol_reset (symbol); + } + } + i += idlen + 1; + + /* Parse optional macro parameters. */ + while (prod[i++] != PARAM_END) { + pp_symbol *param; + + id = (const char *) (&prod[i]); + idlen = _mesa_strlen (id); + if (state.cond.top->effective) { + pp_annotate (output, "%s, ", id); + param = pp_symbols_push (&symbol->parameters); + if (param == NULL) + goto error; + slang_string_pushs (¶m->name, id, idlen); + } + i += idlen + 1; + } + + /* Parse macro replacement. */ + id = (const char *) (&prod[i]); + idlen = _mesa_strlen (id); + if (state.cond.top->effective) { + slang_string replacement; + expand_state es; + + pp_annotate (output, ") %s", id); + + slang_string_init(&replacement); + slang_string_pushs(&replacement, id, idlen); + + /* Expand macro replacement. */ + es.output = &symbol->replacement; + es.input = slang_string_cstr(&replacement); + es.state = &state; + if (!expand(&es, &state.symbols)) { + slang_string_free(&replacement); + goto error; + } + slang_string_free(&replacement); + } + i += idlen + 1; + } + break; + + case TOKEN_UNDEF: + id = (const char *) (&prod[i]); + i += _mesa_strlen (id) + 1; + if (state.cond.top->effective) { + pp_symbol *symbol; + + pp_annotate (output, "// #undef %s", id); + /* Try to find symbol with given name and remove it. */ + symbol = pp_symbols_find (&state.symbols, id); + if (symbol != NULL) + if (!pp_symbols_erase (&state.symbols, symbol)) + goto error; + } + break; + + case TOKEN_IF: + { + GLint result; + + /* Parse #if expression end execute it. */ + pp_annotate (output, "// #if "); + if (!parse_if (output, prod, &i, &result, &state, eid)) + goto error; + + /* Push new condition on the stack. */ + if (!pp_cond_stack_push (&state.cond, state.elog)) + goto error; + state.cond.top->current = result ? GL_TRUE : GL_FALSE; + state.cond.top->else_allowed = GL_TRUE; + state.cond.top->endif_required = GL_TRUE; + pp_cond_stack_reevaluate (&state.cond); + } + break; + + case TOKEN_ELSE: + /* Check if #else is alloved here. */ + if (!state.cond.top->else_allowed) { + slang_info_log_error (elog, "#else without matching #if."); + goto error; + } + + /* Negate current condition and reevaluate it. */ + state.cond.top->current = !state.cond.top->current; + state.cond.top->else_allowed = GL_FALSE; + pp_cond_stack_reevaluate (&state.cond); + if (state.cond.top->effective) + pp_annotate (output, "// #else"); + break; + + case TOKEN_ELIF: + /* Check if #elif is alloved here. */ + if (!state.cond.top->else_allowed) { + slang_info_log_error (elog, "#elif without matching #if."); + goto error; + } + + /* Negate current condition and reevaluate it. */ + state.cond.top->current = !state.cond.top->current; + pp_cond_stack_reevaluate (&state.cond); + + if (state.cond.top->effective) + pp_annotate (output, "// #elif "); + + { + GLint result; + + /* Parse #elif expression end execute it. */ + if (!parse_if (output, prod, &i, &result, &state, eid)) + goto error; + + /* Update current condition and reevaluate it. */ + state.cond.top->current = result ? GL_TRUE : GL_FALSE; + pp_cond_stack_reevaluate (&state.cond); + } + break; + + case TOKEN_ENDIF: + /* Check if #endif is alloved here. */ + if (!state.cond.top->endif_required) { + slang_info_log_error (elog, "#endif without matching #if."); + goto error; + } + + /* Pop the condition off the stack. */ + state.cond.top++; + if (state.cond.top->effective) + pp_annotate (output, "// #endif"); + break; + + case TOKEN_EXTENSION: + /* Parse the extension name. */ + id = (const char *) (&prod[i]); + i += _mesa_strlen (id) + 1; + if (state.cond.top->effective) + pp_annotate (output, "// #extension %s: ", id); + + /* Parse and apply extension behavior. */ + if (state.cond.top->effective) { + switch (prod[i++]) { + + case BEHAVIOR_REQUIRE: + pp_annotate (output, "require"); + if (!pp_ext_set (&state.ext, id, GL_TRUE)) { + if (_mesa_strcmp (id, "all") == 0) { + slang_info_log_error (elog, "require: bad behavior for #extension all."); + goto error; + } + else { + slang_info_log_error (elog, "%s: required extension is not supported.", id); + goto error; + } + } + break; + + case BEHAVIOR_ENABLE: + pp_annotate (output, "enable"); + if (!pp_ext_set (&state.ext, id, GL_TRUE)) { + if (_mesa_strcmp (id, "all") == 0) { + slang_info_log_error (elog, "enable: bad behavior for #extension all."); + goto error; + } + else { + slang_info_log_warning (elog, "%s: enabled extension is not supported.", id); + } + } + break; + + case BEHAVIOR_WARN: + pp_annotate (output, "warn"); + if (!pp_ext_set (&state.ext, id, GL_TRUE)) { + if (_mesa_strcmp (id, "all") != 0) { + slang_info_log_warning (elog, "%s: enabled extension is not supported.", id); + } + } + break; + + case BEHAVIOR_DISABLE: + pp_annotate (output, "disable"); + if (!pp_ext_set (&state.ext, id, GL_FALSE)) { + if (_mesa_strcmp (id, "all") == 0) { + pp_ext_disable_all (&state.ext); + } + else { + slang_info_log_warning (elog, "%s: disabled extension is not supported.", id); + } + } + break; + + default: + assert (0); + } + } + break; + + case TOKEN_PRAGMA: + { + GLint have_param; + const char *pragma, *param; + + pragma = (const char *) (&prod[i]); + i += _mesa_strlen(pragma) + 1; + have_param = (prod[i++] == PRAGMA_PARAM); + if (have_param) { + param = (const char *) (&prod[i]); + i += _mesa_strlen(param) + 1; + } + else { + param = NULL; + } + pp_pragma(pragmas, pragma, param); + } + break; + + case TOKEN_LINE: + id = (const char *) (&prod[i]); + i += _mesa_strlen (id) + 1; + + if (state.cond.top->effective) { + slang_string buffer; + GLuint count; + GLint results[2]; + expand_state es; + + slang_string_init (&buffer); + state.line++; + es.output = &buffer; + es.input = id; + es.state = &state; + if (!expand (&es, &state.symbols)) + goto error; + + pp_annotate (output, "// #line "); + count = execute_expressions (output, eid, + (const byte *) (slang_string_cstr (&buffer)), + results, state.elog); + slang_string_free (&buffer); + if (count == 0) + goto error; + + state.line = results[0] - 1; + if (count == 2) + state.file = results[1]; + } + break; + } + } + } + + /* Check for missing #endifs. */ + if (state.cond.top->endif_required) { + slang_info_log_error (elog, "#endif expected but end of source found."); + goto error; + } + + grammar_alloc_free(prod); + pp_state_free (&state); + return GL_TRUE; + +error: + grammar_alloc_free(prod); + pp_state_free (&state); + return GL_FALSE; +} + + +/** + * Remove the continuation characters from the input string. + * This is the very first step in preprocessing and is effective + * even inside comment blocks. + * If there is a whitespace between a backslash and a newline, + * this is not considered as a line continuation. + * \return GL_TRUE for success, GL_FALSE otherwise. + */ +static GLboolean +_slang_preprocess_backslashes(slang_string *output, + const char *input) +{ + while (*input) { + if (input[0] == '\\') { + /* If a newline follows, eat the backslash and the newline. */ + if (input[1] == '\r') { + if (input[2] == '\n') { + input += 3; + } else { + input += 2; + } + } else if (input[1] == '\n') { + if (input[2] == '\r') { + input += 3; + } else { + input += 2; + } + } else { + /* Leave the backslash alone. */ + slang_string_pushc(output, *input++); + } + } else { + slang_string_pushc(output, *input++); + } + } + return GL_TRUE; +} + + +/** + * Run preprocessor on source code. + * \param extensions indicates which GL extensions are enabled + * \param output the post-process results + * \param input the input text + * \param elog log to record warnings, errors + * \param extensions out extension settings + * \param pragmas in/out #pragma settings + * \return GL_TRUE for success, GL_FALSE for error + */ +GLboolean +_slang_preprocess_directives(slang_string *output, + const char *input, + slang_info_log *elog, + const struct gl_extensions *extensions, + struct gl_sl_pragmas *pragmas) +{ + grammar pid, eid; + GLboolean success; + slang_string without_backslashes; + + pid = grammar_load_from_text ((const byte *) (slang_pp_directives_syn)); + if (pid == 0) { + grammar_error_to_log (elog); + return GL_FALSE; + } + eid = grammar_load_from_text ((const byte *) (slang_pp_expression_syn)); + if (eid == 0) { + grammar_error_to_log (elog); + grammar_destroy (pid); + return GL_FALSE; + } + + slang_string_init(&without_backslashes); + success = _slang_preprocess_backslashes(&without_backslashes, input); + + if (0) { + _mesa_printf("Pre-processed shader:\n"); + _mesa_printf("%s", slang_string_cstr(&without_backslashes)); + _mesa_printf("----------------------\n"); + } + + if (success) { + success = preprocess_source(output, + slang_string_cstr(&without_backslashes), + pid, + eid, + elog, + extensions, + pragmas); + } + + slang_string_free(&without_backslashes); + grammar_destroy (eid); + grammar_destroy (pid); + + if (0) { + _mesa_printf("Post-processed shader:\n"); + _mesa_printf("%s", slang_string_cstr(output)); + _mesa_printf("----------------------\n"); + } + + return success; +} + diff --git a/mesalib/src/mesa/shader/slang/slang_preprocess.h b/mesalib/src/mesa/shader/slang/slang_preprocess.h new file mode 100644 index 000000000..f344820da --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_preprocess.h @@ -0,0 +1,41 @@ +/* + * Mesa 3-D graphics library + * + * Copyright (C) 2005-2008 Brian Paul All Rights Reserved. + * Copyright (C) 2009 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef SLANG_PREPROCESS_H +#define SLANG_PREPROCESS_H + +#include "slang_compile.h" +#include "slang_log.h" + + +extern GLboolean +_slang_preprocess_version (const char *, GLuint *, GLuint *, slang_info_log *); + +extern GLboolean +_slang_preprocess_directives(slang_string *output, const char *input, + slang_info_log *, + const struct gl_extensions *extensions, + struct gl_sl_pragmas *pragmas); + +#endif /* SLANG_PREPROCESS_H */ diff --git a/mesalib/src/mesa/shader/slang/slang_print.c b/mesalib/src/mesa/shader/slang/slang_print.c new file mode 100644 index 000000000..98c787753 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_print.c @@ -0,0 +1,883 @@ + +/** + * Dump/print a slang_operation tree + */ + + +#include "main/imports.h" +#include "slang_compile.h" +#include "slang_print.h" + + +static void +spaces(int n) +{ + while (n--) + printf(" "); +} + + +static void +print_type(const slang_fully_specified_type *t) +{ + switch (t->qualifier) { + case SLANG_QUAL_NONE: + /*printf("");*/ + break; + case SLANG_QUAL_CONST: + printf("const "); + break; + case SLANG_QUAL_ATTRIBUTE: + printf("attrib "); + break; + case SLANG_QUAL_VARYING: + printf("varying "); + break; + case SLANG_QUAL_UNIFORM: + printf("uniform "); + break; + case SLANG_QUAL_OUT: + printf("output "); + break; + case SLANG_QUAL_INOUT: + printf("inout "); + break; + case SLANG_QUAL_FIXEDOUTPUT: + printf("fixedoutput"); + break; + case SLANG_QUAL_FIXEDINPUT: + printf("fixedinput"); + break; + default: + printf("unknown qualifer!"); + } + + switch (t->specifier.type) { + case SLANG_SPEC_VOID: + printf("void"); + break; + case SLANG_SPEC_BOOL: + printf("bool"); + break; + case SLANG_SPEC_BVEC2: + printf("bvec2"); + break; + case SLANG_SPEC_BVEC3: + printf("bvec3"); + break; + case SLANG_SPEC_BVEC4: + printf("bvec4"); + break; + case SLANG_SPEC_INT: + printf("int"); + break; + case SLANG_SPEC_IVEC2: + printf("ivec2"); + break; + case SLANG_SPEC_IVEC3: + printf("ivec3"); + break; + case SLANG_SPEC_IVEC4: + printf("ivec4"); + break; + case SLANG_SPEC_FLOAT: + printf("float"); + break; + case SLANG_SPEC_VEC2: + printf("vec2"); + break; + case SLANG_SPEC_VEC3: + printf("vec3"); + break; + case SLANG_SPEC_VEC4: + printf("vec4"); + break; + case SLANG_SPEC_MAT2: + printf("mat2"); + break; + case SLANG_SPEC_MAT3: + printf("mat3"); + break; + case SLANG_SPEC_MAT4: + printf("mat4"); + break; + case SLANG_SPEC_MAT23: + printf("mat2x3"); + break; + case SLANG_SPEC_MAT32: + printf("mat3x2"); + break; + case SLANG_SPEC_MAT24: + printf("mat2x4"); + break; + case SLANG_SPEC_MAT42: + printf("mat4x2"); + break; + case SLANG_SPEC_MAT34: + printf("mat3x4"); + break; + case SLANG_SPEC_MAT43: + printf("mat4x3"); + break; + case SLANG_SPEC_SAMPLER1D: + printf("sampler1D"); + break; + case SLANG_SPEC_SAMPLER2D: + printf("sampler2D"); + break; + case SLANG_SPEC_SAMPLER3D: + printf("sampler3D"); + break; + case SLANG_SPEC_SAMPLERCUBE: + printf("samplerCube"); + break; + case SLANG_SPEC_SAMPLER1DSHADOW: + printf("sampler1DShadow"); + break; + case SLANG_SPEC_SAMPLER2DSHADOW: + printf("sampler2DShadow"); + break; + case SLANG_SPEC_STRUCT: + printf("struct"); + break; + case SLANG_SPEC_ARRAY: + printf("array"); + break; + default: + printf("unknown type"); + } + /*printf("\n");*/ +} + + +static void +print_variable(const slang_variable *v, int indent) +{ + spaces(indent); + printf("VAR "); + print_type(&v->type); + printf(" %s (at %p)", (char *) v->a_name, (void *) v); + if (v->initializer) { + printf(" :=\n"); + slang_print_tree(v->initializer, indent + 3); + } + else { + printf(";\n"); + } +} + + +static void +print_binary(const slang_operation *op, const char *oper, int indent) +{ + assert(op->num_children == 2); +#if 0 + printf("binary at %p locals=%p outer=%p\n", + (void *) op, + (void *) op->locals, + (void *) op->locals->outer_scope); +#endif + slang_print_tree(&op->children[0], indent + 3); + spaces(indent); + printf("%s at %p locals=%p outer=%p\n", + oper, (void *) op, (void *) op->locals, + (void *) op->locals->outer_scope); + slang_print_tree(&op->children[1], indent + 3); +} + + +static void +print_generic2(const slang_operation *op, const char *oper, + const char *s, int indent) +{ + GLuint i; + if (oper) { + spaces(indent); + printf("%s %s at %p locals=%p outer=%p\n", + oper, s, (void *) op, (void *) op->locals, + (void *) op->locals->outer_scope); + } + for (i = 0; i < op->num_children; i++) { + spaces(indent); + printf("//child %u of %u:\n", i, op->num_children); + slang_print_tree(&op->children[i], indent); + } +} + +static void +print_generic(const slang_operation *op, const char *oper, int indent) +{ + print_generic2(op, oper, "", indent); +} + + +static const slang_variable_scope * +find_scope(const slang_variable_scope *s, slang_atom name) +{ + GLuint i; + for (i = 0; i < s->num_variables; i++) { + if (s->variables[i]->a_name == name) + return s; + } + if (s->outer_scope) + return find_scope(s->outer_scope, name); + else + return NULL; +} + +static const slang_variable * +find_var(const slang_variable_scope *s, slang_atom name) +{ + GLuint i; + for (i = 0; i < s->num_variables; i++) { + if (s->variables[i]->a_name == name) + return s->variables[i]; + } + if (s->outer_scope) + return find_var(s->outer_scope, name); + else + return NULL; +} + + +void +slang_print_tree(const slang_operation *op, int indent) +{ + GLuint i; + + switch (op->type) { + + case SLANG_OPER_NONE: + spaces(indent); + printf("SLANG_OPER_NONE\n"); + break; + + case SLANG_OPER_BLOCK_NO_NEW_SCOPE: + spaces(indent); + printf("{ locals=%p outer=%p\n", (void*)op->locals, (void*)op->locals->outer_scope); + print_generic(op, NULL, indent+3); + spaces(indent); + printf("}\n"); + break; + + case SLANG_OPER_BLOCK_NEW_SCOPE: + case SLANG_OPER_NON_INLINED_CALL: + spaces(indent); + printf("{{ // new scope locals=%p outer=%p: ", + (void *) op->locals, + (void *) op->locals->outer_scope); + for (i = 0; i < op->locals->num_variables; i++) { + printf("%s ", (char *) op->locals->variables[i]->a_name); + } + printf("\n"); + print_generic(op, NULL, indent+3); + spaces(indent); + printf("}}\n"); + break; + + case SLANG_OPER_VARIABLE_DECL: + assert(op->num_children == 0 || op->num_children == 1); + { + slang_variable *v; + v = _slang_variable_locate(op->locals, op->a_id, GL_TRUE); + if (v) { + const slang_variable_scope *scope; + spaces(indent); + printf("DECL (locals=%p outer=%p) ", (void*)op->locals, (void*) op->locals->outer_scope); + print_type(&v->type); + printf(" %s (%p)", (char *) op->a_id, + (void *) find_var(op->locals, op->a_id)); + + scope = find_scope(op->locals, op->a_id); + printf(" (in scope %p) ", (void *) scope); + assert(scope); + if (op->num_children == 1) { + printf(" :=\n"); + slang_print_tree(&op->children[0], indent + 3); + } + else if (v->initializer) { + printf(" := INITIALIZER\n"); + slang_print_tree(v->initializer, indent + 3); + } + else { + printf(";\n"); + } + /* + spaces(indent); + printf("TYPE: "); + print_type(&v->type); + spaces(indent); + printf("ADDR: %d size: %d\n", v->address, v->size); + */ + } + else { + spaces(indent); + printf("DECL %s (anonymous variable!!!!)\n", (char *) op->a_id); + } + } + break; + + case SLANG_OPER_ASM: + spaces(indent); + printf("ASM: %s at %p locals=%p outer=%p\n", + (char *) op->a_id, + (void *) op, + (void *) op->locals, + (void *) op->locals->outer_scope); + print_generic(op, "ASM", indent+3); + break; + + case SLANG_OPER_BREAK: + spaces(indent); + printf("BREAK\n"); + break; + + case SLANG_OPER_CONTINUE: + spaces(indent); + printf("CONTINUE\n"); + break; + + case SLANG_OPER_DISCARD: + spaces(indent); + printf("DISCARD\n"); + break; + + case SLANG_OPER_RETURN: + spaces(indent); + printf("RETURN\n"); + if (op->num_children > 0) + slang_print_tree(&op->children[0], indent + 3); + break; + + case SLANG_OPER_RETURN_INLINED: + spaces(indent); + printf("RETURN_INLINED\n"); + if (op->num_children > 0) + slang_print_tree(&op->children[0], indent + 3); + break; + + case SLANG_OPER_LABEL: + spaces(indent); + printf("LABEL %s\n", (char *) op->a_id); + break; + + case SLANG_OPER_EXPRESSION: + spaces(indent); + printf("EXPR: locals=%p outer=%p\n", + (void *) op->locals, + (void *) op->locals->outer_scope); + /*print_generic(op, "SLANG_OPER_EXPRESSION", indent);*/ + slang_print_tree(&op->children[0], indent + 3); + break; + + case SLANG_OPER_IF: + spaces(indent); + printf("IF\n"); + slang_print_tree(&op->children[0], indent + 3); + spaces(indent); + printf("THEN\n"); + slang_print_tree(&op->children[1], indent + 3); + spaces(indent); + printf("ELSE\n"); + slang_print_tree(&op->children[2], indent + 3); + spaces(indent); + printf("ENDIF\n"); + break; + + case SLANG_OPER_WHILE: + assert(op->num_children == 2); + spaces(indent); + printf("WHILE LOOP: locals = %p\n", (void *) op->locals); + indent += 3; + spaces(indent); + printf("WHILE cond:\n"); + slang_print_tree(&op->children[0], indent + 3); + spaces(indent); + printf("WHILE body:\n"); + slang_print_tree(&op->children[1], indent + 3); + indent -= 3; + spaces(indent); + printf("END WHILE LOOP\n"); + break; + + case SLANG_OPER_DO: + spaces(indent); + printf("DO LOOP: locals = %p\n", (void *) op->locals); + indent += 3; + spaces(indent); + printf("DO body:\n"); + slang_print_tree(&op->children[0], indent + 3); + spaces(indent); + printf("DO cond:\n"); + slang_print_tree(&op->children[1], indent + 3); + indent -= 3; + spaces(indent); + printf("END DO LOOP\n"); + break; + + case SLANG_OPER_FOR: + spaces(indent); + printf("FOR LOOP: locals = %p\n", (void *) op->locals); + indent += 3; + spaces(indent); + printf("FOR init:\n"); + slang_print_tree(&op->children[0], indent + 3); + spaces(indent); + printf("FOR condition:\n"); + slang_print_tree(&op->children[1], indent + 3); + spaces(indent); + printf("FOR step:\n"); + slang_print_tree(&op->children[2], indent + 3); + spaces(indent); + printf("FOR body:\n"); + slang_print_tree(&op->children[3], indent + 3); + indent -= 3; + spaces(indent); + printf("ENDFOR\n"); + /* + print_generic(op, "FOR", indent + 3); + */ + break; + + case SLANG_OPER_VOID: + spaces(indent); + printf("(oper-void)\n"); + break; + + case SLANG_OPER_LITERAL_BOOL: + spaces(indent); + printf("LITERAL ("); + for (i = 0; i < op->literal_size; i++) + printf("%s ", op->literal[0] ? "TRUE" : "FALSE"); + printf(")\n"); + + break; + + case SLANG_OPER_LITERAL_INT: + spaces(indent); + printf("LITERAL ("); + for (i = 0; i < op->literal_size; i++) + printf("%d ", (int) op->literal[i]); + printf(")\n"); + break; + + case SLANG_OPER_LITERAL_FLOAT: + spaces(indent); + printf("LITERAL ("); + for (i = 0; i < op->literal_size; i++) + printf("%f ", op->literal[i]); + printf(")\n"); + break; + + case SLANG_OPER_IDENTIFIER: + { + const slang_variable_scope *scope; + spaces(indent); + if (op->var && op->var->a_name) { + scope = find_scope(op->locals, op->var->a_name); + printf("VAR %s (in scope %p)\n", (char *) op->var->a_name, + (void *) scope); + assert(scope); + } + else { + scope = find_scope(op->locals, op->a_id); + printf("VAR' %s (in scope %p) locals=%p outer=%p\n", + (char *) op->a_id, + (void *) scope, + (void *) op->locals, + (void *) op->locals->outer_scope); + /*assert(scope);*/ + } + } + break; + + case SLANG_OPER_SEQUENCE: + print_generic(op, "COMMA-SEQ", indent+3); + break; + + case SLANG_OPER_ASSIGN: + spaces(indent); + printf("ASSIGNMENT locals=%p outer=%p\n", + (void *) op->locals, + (void *) op->locals->outer_scope); + print_binary(op, ":=", indent); + break; + + case SLANG_OPER_ADDASSIGN: + spaces(indent); + printf("ASSIGN\n"); + print_binary(op, "+=", indent); + break; + + case SLANG_OPER_SUBASSIGN: + spaces(indent); + printf("ASSIGN\n"); + print_binary(op, "-=", indent); + break; + + case SLANG_OPER_MULASSIGN: + spaces(indent); + printf("ASSIGN\n"); + print_binary(op, "*=", indent); + break; + + case SLANG_OPER_DIVASSIGN: + spaces(indent); + printf("ASSIGN\n"); + print_binary(op, "/=", indent); + break; + + /*SLANG_OPER_MODASSIGN,*/ + /*SLANG_OPER_LSHASSIGN,*/ + /*SLANG_OPER_RSHASSIGN,*/ + /*SLANG_OPER_ORASSIGN,*/ + /*SLANG_OPER_XORASSIGN,*/ + /*SLANG_OPER_ANDASSIGN,*/ + case SLANG_OPER_SELECT: + spaces(indent); + printf("SLANG_OPER_SELECT n=%d\n", op->num_children); + assert(op->num_children == 3); + slang_print_tree(&op->children[0], indent+3); + spaces(indent); + printf("?\n"); + slang_print_tree(&op->children[1], indent+3); + spaces(indent); + printf(":\n"); + slang_print_tree(&op->children[2], indent+3); + break; + + case SLANG_OPER_LOGICALOR: + print_binary(op, "||", indent); + break; + + case SLANG_OPER_LOGICALXOR: + print_binary(op, "^^", indent); + break; + + case SLANG_OPER_LOGICALAND: + print_binary(op, "&&", indent); + break; + + /*SLANG_OPER_BITOR*/ + /*SLANG_OPER_BITXOR*/ + /*SLANG_OPER_BITAND*/ + case SLANG_OPER_EQUAL: + print_binary(op, "==", indent); + break; + + case SLANG_OPER_NOTEQUAL: + print_binary(op, "!=", indent); + break; + + case SLANG_OPER_LESS: + print_binary(op, "<", indent); + break; + + case SLANG_OPER_GREATER: + print_binary(op, ">", indent); + break; + + case SLANG_OPER_LESSEQUAL: + print_binary(op, "<=", indent); + break; + + case SLANG_OPER_GREATEREQUAL: + print_binary(op, ">=", indent); + break; + + /*SLANG_OPER_LSHIFT*/ + /*SLANG_OPER_RSHIFT*/ + case SLANG_OPER_ADD: + print_binary(op, "+", indent); + break; + + case SLANG_OPER_SUBTRACT: + print_binary(op, "-", indent); + break; + + case SLANG_OPER_MULTIPLY: + print_binary(op, "*", indent); + break; + + case SLANG_OPER_DIVIDE: + print_binary(op, "/", indent); + break; + + /*SLANG_OPER_MODULUS*/ + case SLANG_OPER_PREINCREMENT: + spaces(indent); + printf("PRE++\n"); + slang_print_tree(&op->children[0], indent+3); + break; + + case SLANG_OPER_PREDECREMENT: + spaces(indent); + printf("PRE--\n"); + slang_print_tree(&op->children[0], indent+3); + break; + + case SLANG_OPER_PLUS: + spaces(indent); + printf("SLANG_OPER_PLUS\n"); + break; + + case SLANG_OPER_MINUS: + spaces(indent); + printf("SLANG_OPER_MINUS\n"); + break; + + /*SLANG_OPER_COMPLEMENT*/ + case SLANG_OPER_NOT: + spaces(indent); + printf("NOT\n"); + slang_print_tree(&op->children[0], indent+3); + break; + + case SLANG_OPER_SUBSCRIPT: + spaces(indent); + printf("SLANG_OPER_SUBSCRIPT locals=%p outer=%p\n", + (void *) op->locals, + (void *) op->locals->outer_scope); + print_generic(op, NULL, indent+3); + break; + + case SLANG_OPER_CALL: +#if 0 + slang_function *fun + = _slang_function_locate(A->space.funcs, oper->a_id, + oper->children, + oper->num_children, &A->space, A->atoms); +#endif + spaces(indent); + printf("CALL %s(\n", (char *) op->a_id); + for (i = 0; i < op->num_children; i++) { + slang_print_tree(&op->children[i], indent+3); + if (i + 1 < op->num_children) { + spaces(indent + 3); + printf(",\n"); + } + } + spaces(indent); + printf(")\n"); + break; + + case SLANG_OPER_METHOD: + spaces(indent); + printf("METHOD CALL %s.%s\n", (char *) op->a_obj, (char *) op->a_id); + break; + + case SLANG_OPER_FIELD: + spaces(indent); + printf("FIELD %s of\n", (char*) op->a_id); + slang_print_tree(&op->children[0], indent+3); + break; + + case SLANG_OPER_POSTINCREMENT: + spaces(indent); + printf("POST++\n"); + slang_print_tree(&op->children[0], indent+3); + break; + + case SLANG_OPER_POSTDECREMENT: + spaces(indent); + printf("POST--\n"); + slang_print_tree(&op->children[0], indent+3); + break; + + default: + printf("unknown op->type %d\n", (int) op->type); + } + +} + + + +void +slang_print_function(const slang_function *f, GLboolean body) +{ + GLuint i; + +#if 0 + if (_mesa_strcmp((char *) f->header.a_name, "main") != 0) + return; +#endif + + printf("FUNCTION %s ( scope=%p\n", + (char *) f->header.a_name, (void *) f->parameters); + + for (i = 0; i < f->param_count; i++) { + print_variable(f->parameters->variables[i], 3); + } + + printf(") param scope = %p\n", (void *) f->parameters); + + if (body && f->body) + slang_print_tree(f->body, 0); +} + + + + + +const char * +slang_type_qual_string(slang_type_qualifier q) +{ + switch (q) { + case SLANG_QUAL_NONE: + return "none"; + case SLANG_QUAL_CONST: + return "const"; + case SLANG_QUAL_ATTRIBUTE: + return "attribute"; + case SLANG_QUAL_VARYING: + return "varying"; + case SLANG_QUAL_UNIFORM: + return "uniform"; + case SLANG_QUAL_OUT: + return "out"; + case SLANG_QUAL_INOUT: + return "inout"; + case SLANG_QUAL_FIXEDOUTPUT: + return "fixedoutput"; + case SLANG_QUAL_FIXEDINPUT: + return "fixedinputk"; + default: + return "qual?"; + } +} + + +static const char * +slang_type_string(slang_type_specifier_type t) +{ + switch (t) { + case SLANG_SPEC_VOID: + return "void"; + case SLANG_SPEC_BOOL: + return "bool"; + case SLANG_SPEC_BVEC2: + return "bvec2"; + case SLANG_SPEC_BVEC3: + return "bvec3"; + case SLANG_SPEC_BVEC4: + return "bvec4"; + case SLANG_SPEC_INT: + return "int"; + case SLANG_SPEC_IVEC2: + return "ivec2"; + case SLANG_SPEC_IVEC3: + return "ivec3"; + case SLANG_SPEC_IVEC4: + return "ivec4"; + case SLANG_SPEC_FLOAT: + return "float"; + case SLANG_SPEC_VEC2: + return "vec2"; + case SLANG_SPEC_VEC3: + return "vec3"; + case SLANG_SPEC_VEC4: + return "vec4"; + case SLANG_SPEC_MAT2: + return "mat2"; + case SLANG_SPEC_MAT3: + return "mat3"; + case SLANG_SPEC_MAT4: + return "mat4"; + case SLANG_SPEC_SAMPLER1D: + return "sampler1D"; + case SLANG_SPEC_SAMPLER2D: + return "sampler2D"; + case SLANG_SPEC_SAMPLER3D: + return "sampler3D"; + case SLANG_SPEC_SAMPLERCUBE: + return "samplerCube"; + case SLANG_SPEC_SAMPLER1DSHADOW: + return "sampler1DShadow"; + case SLANG_SPEC_SAMPLER2DSHADOW: + return "sampler2DShadow"; + case SLANG_SPEC_SAMPLER2DRECT: + return "sampler2DRect"; + case SLANG_SPEC_SAMPLER2DRECTSHADOW: + return "sampler2DRectShadow"; + case SLANG_SPEC_STRUCT: + return "struct"; + case SLANG_SPEC_ARRAY: + return "array"; + default: + return "type?"; + } +} + + +static const char * +slang_fq_type_string(const slang_fully_specified_type *t) +{ + static char str[1000]; + sprintf(str, "%s %s", slang_type_qual_string(t->qualifier), + slang_type_string(t->specifier.type)); + return str; +} + + +void +slang_print_type(const slang_fully_specified_type *t) +{ + printf("%s %s", slang_type_qual_string(t->qualifier), + slang_type_string(t->specifier.type)); +} + + +#if 0 +static char * +slang_var_string(const slang_variable *v) +{ + static char str[1000]; + sprintf(str, "%s : %s", + (char *) v->a_name, + slang_fq_type_string(&v->type)); + return str; +} +#endif + + +void +slang_print_variable(const slang_variable *v) +{ + printf("Name: %s\n", (char *) v->a_name); + printf("Type: %s\n", slang_fq_type_string(&v->type)); +} + + +void +_slang_print_var_scope(const slang_variable_scope *vars, int indent) +{ + GLuint i; + + spaces(indent); + printf("Var scope %p %d vars:\n", (void *) vars, vars->num_variables); + for (i = 0; i < vars->num_variables; i++) { + spaces(indent + 3); + printf("%s (at %p)\n", (char *) vars->variables[i]->a_name, (void*) (vars->variables + i)); + } + spaces(indent + 3); + printf("outer_scope = %p\n", (void*) vars->outer_scope); + + if (vars->outer_scope) { + /*spaces(indent + 3);*/ + _slang_print_var_scope(vars->outer_scope, indent + 3); + } +} + + + +int +slang_checksum_tree(const slang_operation *op) +{ + int s = op->num_children; + GLuint i; + + for (i = 0; i < op->num_children; i++) { + s += slang_checksum_tree(&op->children[i]); + } + return s; +} diff --git a/mesalib/src/mesa/shader/slang/slang_print.h b/mesalib/src/mesa/shader/slang/slang_print.h new file mode 100644 index 000000000..46605c806 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_print.h @@ -0,0 +1,29 @@ + + +#ifndef SLANG_PRINT +#define SLANG_PRINT + +extern void +slang_print_function(const slang_function *f, GLboolean body); + +extern void +slang_print_tree(const slang_operation *op, int indent); + +extern const char * +slang_type_qual_string(slang_type_qualifier q); + +extern void +slang_print_type(const slang_fully_specified_type *t); + +extern void +slang_print_variable(const slang_variable *v); + +extern void +_slang_print_var_scope(const slang_variable_scope *s, int indent); + + +extern int +slang_checksum_tree(const slang_operation *op); + +#endif /* SLANG_PRINT */ + diff --git a/mesalib/src/mesa/shader/slang/slang_simplify.c b/mesalib/src/mesa/shader/slang/slang_simplify.c new file mode 100644 index 000000000..b8a21f642 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_simplify.c @@ -0,0 +1,526 @@ +/* + * Mesa 3-D graphics library + * Version: 7.1 + * + * Copyright (C) 2005-2008 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * Functions for constant folding, built-in constant lookup, and function + * call casting. + */ + + +#include "main/imports.h" +#include "main/macros.h" +#include "main/get.h" +#include "slang_compile.h" +#include "slang_codegen.h" +#include "slang_simplify.h" +#include "slang_print.h" + + +#ifndef GL_MAX_FRAGMENT_UNIFORM_VECTORS +#define GL_MAX_FRAGMENT_UNIFORM_VECTORS 0x8DFD +#endif +#ifndef GL_MAX_VERTEX_UNIFORM_VECTORS +#define GL_MAX_VERTEX_UNIFORM_VECTORS 0x8DFB +#endif +#ifndef GL_MAX_VARYING_VECTORS +#define GL_MAX_VARYING_VECTORS 0x8DFC +#endif + + +/** + * Lookup the value of named constant, such as gl_MaxLights. + * \return value of constant, or -1 if unknown + */ +GLint +_slang_lookup_constant(const char *name) +{ + struct constant_info { + const char *Name; + const GLenum Token; + }; + static const struct constant_info info[] = { + { "gl_MaxClipPlanes", GL_MAX_CLIP_PLANES }, + { "gl_MaxCombinedTextureImageUnits", GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS }, + { "gl_MaxDrawBuffers", GL_MAX_DRAW_BUFFERS }, + { "gl_MaxFragmentUniformComponents", GL_MAX_FRAGMENT_UNIFORM_COMPONENTS }, + { "gl_MaxLights", GL_MAX_LIGHTS }, + { "gl_MaxTextureUnits", GL_MAX_TEXTURE_UNITS }, + { "gl_MaxTextureCoords", GL_MAX_TEXTURE_COORDS }, + { "gl_MaxVertexAttribs", GL_MAX_VERTEX_ATTRIBS }, + { "gl_MaxVertexUniformComponents", GL_MAX_VERTEX_UNIFORM_COMPONENTS }, + { "gl_MaxVaryingFloats", GL_MAX_VARYING_FLOATS }, + { "gl_MaxVertexTextureImageUnits", GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS }, + { "gl_MaxTextureImageUnits", GL_MAX_TEXTURE_IMAGE_UNITS }, +#if FEATURE_es2_glsl + { "gl_MaxVertexUniformVectors", GL_MAX_VERTEX_UNIFORM_VECTORS }, + { "gl_MaxVaryingVectors", GL_MAX_VARYING_VECTORS }, + { "gl_MaxFragmentUniformVectors", GL_MAX_FRAGMENT_UNIFORM_VECTORS }, +#endif + { NULL, 0 } + }; + GLuint i; + + for (i = 0; info[i].Name; i++) { + if (strcmp(info[i].Name, name) == 0) { + /* found */ + GLint value = -1; + _mesa_GetIntegerv(info[i].Token, &value); + ASSERT(value >= 0); /* sanity check that glGetFloatv worked */ + return value; + } + } + return -1; +} + + +static slang_operation_type +literal_type(slang_operation_type t1, slang_operation_type t2) +{ + if (t1 == SLANG_OPER_LITERAL_FLOAT || t2 == SLANG_OPER_LITERAL_FLOAT) + return SLANG_OPER_LITERAL_FLOAT; + else + return SLANG_OPER_LITERAL_INT; +} + + +/** + * Recursively traverse an AST tree, applying simplifications wherever + * possible. + * At the least, we do constant folding. We need to do that much so that + * compile-time expressions can be evaluated for things like array + * declarations. I.e.: float foo[3 + 5]; + */ +void +_slang_simplify(slang_operation *oper, + const slang_name_space * space, + slang_atom_pool * atoms) +{ + GLboolean isFloat[4]; + GLboolean isBool[4]; + GLuint i, n; + + if (oper->type == SLANG_OPER_IDENTIFIER) { + /* see if it's a named constant */ + GLint value = _slang_lookup_constant((char *) oper->a_id); + /*printf("value[%s] = %d\n", (char*) oper->a_id, value);*/ + if (value >= 0) { + oper->literal[0] = + oper->literal[1] = + oper->literal[2] = + oper->literal[3] = (GLfloat) value; + oper->type = SLANG_OPER_LITERAL_INT; + return; + } + /* look for user-defined constant */ + { + slang_variable *var; + var = _slang_variable_locate(oper->locals, oper->a_id, GL_TRUE); + if (var) { + if (var->type.qualifier == SLANG_QUAL_CONST && + var->initializer && + (var->initializer->type == SLANG_OPER_LITERAL_INT || + var->initializer->type == SLANG_OPER_LITERAL_FLOAT)) { + oper->literal[0] = var->initializer->literal[0]; + oper->literal[1] = var->initializer->literal[1]; + oper->literal[2] = var->initializer->literal[2]; + oper->literal[3] = var->initializer->literal[3]; + oper->literal_size = var->initializer->literal_size; + oper->type = var->initializer->type; + /* + printf("value[%s] = %f\n", + (char*) oper->a_id, oper->literal[0]); + */ + return; + } + } + } + } + + /* first, simplify children */ + for (i = 0; i < oper->num_children; i++) { + _slang_simplify(&oper->children[i], space, atoms); + } + + /* examine children */ + n = MIN2(oper->num_children, 4); + for (i = 0; i < n; i++) { + isFloat[i] = (oper->children[i].type == SLANG_OPER_LITERAL_FLOAT || + oper->children[i].type == SLANG_OPER_LITERAL_INT); + isBool[i] = (oper->children[i].type == SLANG_OPER_LITERAL_BOOL); + } + + if (oper->num_children == 2 && isFloat[0] && isFloat[1]) { + /* probably simple arithmetic */ + switch (oper->type) { + case SLANG_OPER_ADD: + for (i = 0; i < 4; i++) { + oper->literal[i] + = oper->children[0].literal[i] + oper->children[1].literal[i]; + } + oper->literal_size = oper->children[0].literal_size; + oper->type = literal_type(oper->children[0].type, + oper->children[1].type); + slang_operation_destruct(oper); /* frees unused children */ + return; + case SLANG_OPER_SUBTRACT: + for (i = 0; i < 4; i++) { + oper->literal[i] + = oper->children[0].literal[i] - oper->children[1].literal[i]; + } + oper->literal_size = oper->children[0].literal_size; + oper->type = literal_type(oper->children[0].type, + oper->children[1].type); + slang_operation_destruct(oper); + return; + case SLANG_OPER_MULTIPLY: + for (i = 0; i < 4; i++) { + oper->literal[i] + = oper->children[0].literal[i] * oper->children[1].literal[i]; + } + oper->literal_size = oper->children[0].literal_size; + oper->type = literal_type(oper->children[0].type, + oper->children[1].type); + slang_operation_destruct(oper); + return; + case SLANG_OPER_DIVIDE: + for (i = 0; i < 4; i++) { + oper->literal[i] + = oper->children[0].literal[i] / oper->children[1].literal[i]; + } + oper->literal_size = oper->children[0].literal_size; + oper->type = literal_type(oper->children[0].type, + oper->children[1].type); + slang_operation_destruct(oper); + return; + default: + ; /* nothing */ + } + } + + if (oper->num_children == 1 && isFloat[0]) { + switch (oper->type) { + case SLANG_OPER_MINUS: + for (i = 0; i < 4; i++) { + oper->literal[i] = -oper->children[0].literal[i]; + } + oper->literal_size = oper->children[0].literal_size; + slang_operation_destruct(oper); + oper->type = SLANG_OPER_LITERAL_FLOAT; + return; + case SLANG_OPER_PLUS: + COPY_4V(oper->literal, oper->children[0].literal); + oper->literal_size = oper->children[0].literal_size; + slang_operation_destruct(oper); + oper->type = SLANG_OPER_LITERAL_FLOAT; + return; + default: + ; /* nothing */ + } + } + + if (oper->num_children == 2 && isBool[0] && isBool[1]) { + /* simple boolean expression */ + switch (oper->type) { + case SLANG_OPER_LOGICALAND: + for (i = 0; i < 4; i++) { + const GLint a = oper->children[0].literal[i] ? 1 : 0; + const GLint b = oper->children[1].literal[i] ? 1 : 0; + oper->literal[i] = (GLfloat) (a && b); + } + oper->literal_size = oper->children[0].literal_size; + slang_operation_destruct(oper); + oper->type = SLANG_OPER_LITERAL_BOOL; + return; + case SLANG_OPER_LOGICALOR: + for (i = 0; i < 4; i++) { + const GLint a = oper->children[0].literal[i] ? 1 : 0; + const GLint b = oper->children[1].literal[i] ? 1 : 0; + oper->literal[i] = (GLfloat) (a || b); + } + oper->literal_size = oper->children[0].literal_size; + slang_operation_destruct(oper); + oper->type = SLANG_OPER_LITERAL_BOOL; + return; + case SLANG_OPER_LOGICALXOR: + for (i = 0; i < 4; i++) { + const GLint a = oper->children[0].literal[i] ? 1 : 0; + const GLint b = oper->children[1].literal[i] ? 1 : 0; + oper->literal[i] = (GLfloat) (a ^ b); + } + oper->literal_size = oper->children[0].literal_size; + slang_operation_destruct(oper); + oper->type = SLANG_OPER_LITERAL_BOOL; + return; + default: + ; /* nothing */ + } + } + + if (oper->num_children == 4 + && isFloat[0] && isFloat[1] && isFloat[2] && isFloat[3]) { + /* vec4(flt, flt, flt, flt) constructor */ + if (oper->type == SLANG_OPER_CALL) { + if (strcmp((char *) oper->a_id, "vec4") == 0) { + oper->literal[0] = oper->children[0].literal[0]; + oper->literal[1] = oper->children[1].literal[0]; + oper->literal[2] = oper->children[2].literal[0]; + oper->literal[3] = oper->children[3].literal[0]; + oper->literal_size = 4; + slang_operation_destruct(oper); + oper->type = SLANG_OPER_LITERAL_FLOAT; + return; + } + } + } + + if (oper->num_children == 3 && isFloat[0] && isFloat[1] && isFloat[2]) { + /* vec3(flt, flt, flt) constructor */ + if (oper->type == SLANG_OPER_CALL) { + if (strcmp((char *) oper->a_id, "vec3") == 0) { + oper->literal[0] = oper->children[0].literal[0]; + oper->literal[1] = oper->children[1].literal[0]; + oper->literal[2] = oper->children[2].literal[0]; + oper->literal[3] = oper->literal[2]; + oper->literal_size = 3; + slang_operation_destruct(oper); + oper->type = SLANG_OPER_LITERAL_FLOAT; + return; + } + } + } + + if (oper->num_children == 2 && isFloat[0] && isFloat[1]) { + /* vec2(flt, flt) constructor */ + if (oper->type == SLANG_OPER_CALL) { + if (strcmp((char *) oper->a_id, "vec2") == 0) { + oper->literal[0] = oper->children[0].literal[0]; + oper->literal[1] = oper->children[1].literal[0]; + oper->literal[2] = oper->literal[1]; + oper->literal[3] = oper->literal[1]; + oper->literal_size = 2; + slang_operation_destruct(oper); /* XXX oper->locals goes NULL! */ + oper->type = SLANG_OPER_LITERAL_FLOAT; + assert(oper->num_children == 0); + return; + } + } + } + + if (oper->num_children == 1 && isFloat[0]) { + /* vec2/3/4(flt, flt) constructor */ + if (oper->type == SLANG_OPER_CALL) { + const char *func = (const char *) oper->a_id; + if (strncmp(func, "vec", 3) == 0 && func[3] >= '2' && func[3] <= '4') { + oper->literal[0] = + oper->literal[1] = + oper->literal[2] = + oper->literal[3] = oper->children[0].literal[0]; + oper->literal_size = func[3] - '0'; + assert(oper->literal_size >= 2); + assert(oper->literal_size <= 4); + slang_operation_destruct(oper); /* XXX oper->locals goes NULL! */ + oper->type = SLANG_OPER_LITERAL_FLOAT; + assert(oper->num_children == 0); + return; + } + } + } +} + + + +/** + * Insert casts to try to adapt actual parameters to formal parameters for a + * function call when an exact match for the parameter types is not found. + * Example: + * void foo(int i, bool b) {} + * x = foo(3.15, 9); + * Gets translated into: + * x = foo(int(3.15), bool(9)) + */ +GLboolean +_slang_cast_func_params(slang_operation *callOper, const slang_function *fun, + const slang_name_space * space, + slang_atom_pool * atoms, slang_info_log *log) +{ + const GLboolean haveRetValue = _slang_function_has_return_value(fun); + const int numParams = fun->param_count - haveRetValue; + int i; + int dbg = 0; + + if (dbg) + printf("Adapt call of %d args to func %s (%d params)\n", + callOper->num_children, (char*) fun->header.a_name, numParams); + + for (i = 0; i < numParams; i++) { + slang_typeinfo argType; + slang_variable *paramVar = fun->parameters->variables[i]; + + /* Get type of arg[i] */ + if (!slang_typeinfo_construct(&argType)) + return GL_FALSE; + if (!_slang_typeof_operation(&callOper->children[i], space, + &argType, atoms, log)) { + slang_typeinfo_destruct(&argType); + return GL_FALSE; + } + + /* see if arg type matches parameter type */ + if (!slang_type_specifier_equal(&argType.spec, + ¶mVar->type.specifier)) { + /* need to adapt arg type to match param type */ + const char *constructorName = + slang_type_specifier_type_to_string(paramVar->type.specifier.type); + slang_operation *child = slang_operation_new(1); + + if (dbg) + printf("Need to adapt types of arg %d\n", i); + + slang_operation_copy(child, &callOper->children[i]); + child->locals->outer_scope = callOper->children[i].locals; + +#if 0 + if (_slang_sizeof_type_specifier(&argType.spec) > + _slang_sizeof_type_specifier(¶mVar->type.specifier)) { + } +#endif + + callOper->children[i].type = SLANG_OPER_CALL; + callOper->children[i].a_id = slang_atom_pool_atom(atoms, constructorName); + callOper->children[i].num_children = 1; + callOper->children[i].children = child; + } + + slang_typeinfo_destruct(&argType); + } + + if (dbg) { + printf("===== New call to %s with cast arguments ===============\n", + (char*) fun->header.a_name); + slang_print_tree(callOper, 5); + } + + return GL_TRUE; +} + + +/** + * Adapt the arguments for a function call to match the parameters of + * the given function. + * This is for: + * 1. converting/casting argument types to match parameters + * 2. breaking up vector/matrix types into individual components to + * satisfy constructors. + */ +GLboolean +_slang_adapt_call(slang_operation *callOper, const slang_function *fun, + const slang_name_space * space, + slang_atom_pool * atoms, slang_info_log *log) +{ + const GLboolean haveRetValue = _slang_function_has_return_value(fun); + const int numParams = fun->param_count - haveRetValue; + int i; + int dbg = 0; + + if (dbg) + printf("Adapt %d args to %d parameters for %s\n", + callOper->num_children, numParams, (char *) fun->header.a_name); + + /* Only try adapting for constructors */ + if (fun->kind != SLANG_FUNC_CONSTRUCTOR) + return GL_FALSE; + + if (callOper->num_children != numParams) { + /* number of arguments doesn't match number of parameters */ + + /* For constructor calls, we can try to unroll vector/matrix args + * into individual floats/ints and try to match the function params. + */ + for (i = 0; i < numParams; i++) { + slang_typeinfo argType; + GLint argSz, j; + + /* Get type of arg[i] */ + if (!slang_typeinfo_construct(&argType)) + return GL_FALSE; + if (!_slang_typeof_operation(&callOper->children[i], space, + &argType, atoms, log)) { + slang_typeinfo_destruct(&argType); + return GL_FALSE; + } + + /* + paramSz = _slang_sizeof_type_specifier(¶mVar->type.specifier); + assert(paramSz == 1); + */ + argSz = _slang_sizeof_type_specifier(&argType.spec); + if (argSz > 1) { + slang_operation origArg; + /* break up arg[i] into components */ + if (dbg) + printf("Break up arg %d from 1 to %d elements\n", i, argSz); + + slang_operation_construct(&origArg); + slang_operation_copy(&origArg, &callOper->children[i]); + + /* insert argSz-1 new children/args */ + for (j = 0; j < argSz - 1; j++) { + (void) slang_operation_insert(&callOper->num_children, + &callOper->children, i); + } + + /* replace arg[i+j] with subscript/index oper */ + for (j = 0; j < argSz; j++) { + callOper->children[i + j].type = SLANG_OPER_SUBSCRIPT; + callOper->children[i + j].locals = _slang_variable_scope_new(callOper->locals); + callOper->children[i + j].num_children = 2; + callOper->children[i + j].children = slang_operation_new(2); + slang_operation_copy(&callOper->children[i + j].children[0], + &origArg); + callOper->children[i + j].children[1].type + = SLANG_OPER_LITERAL_INT; + callOper->children[i + j].children[1].literal[0] = (GLfloat) j; + } + } + } + } + + if (callOper->num_children < (GLuint) numParams) { + /* still not enough args for all params */ + return GL_FALSE; + } + else if (callOper->num_children > (GLuint) numParams) { + /* now too many arguments */ + /* just truncate */ + callOper->num_children = (GLuint) numParams; + } + + if (dbg) { + printf("===== New call to %s with adapted arguments ===============\n", + (char*) fun->header.a_name); + slang_print_tree(callOper, 5); + } + + return GL_TRUE; +} diff --git a/mesalib/src/mesa/shader/slang/slang_simplify.h b/mesalib/src/mesa/shader/slang/slang_simplify.h new file mode 100644 index 000000000..8689c23b1 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_simplify.h @@ -0,0 +1,50 @@ +/* + * Mesa 3-D graphics library + * Version: 7.1 + * + * Copyright (C) 2005-2008 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef SLANG_SIMPLIFY_H +#define SLANG_SIMPLIFY_H + + +extern GLint +_slang_lookup_constant(const char *name); + + +extern void +_slang_simplify(slang_operation *oper, + const slang_name_space * space, + slang_atom_pool * atoms); + + +extern GLboolean +_slang_cast_func_params(slang_operation *callOper, const slang_function *fun, + const slang_name_space * space, + slang_atom_pool * atoms, slang_info_log *log); + +extern GLboolean +_slang_adapt_call(slang_operation *callOper, const slang_function *fun, + const slang_name_space * space, + slang_atom_pool * atoms, slang_info_log *log); + + +#endif /* SLANG_SIMPLIFY_H */ diff --git a/mesalib/src/mesa/shader/slang/slang_storage.c b/mesalib/src/mesa/shader/slang/slang_storage.c new file mode 100644 index 000000000..e8b0fb774 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_storage.c @@ -0,0 +1,316 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 2005-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_storage.c + * slang variable storage + * \author Michal Krol + */ + +#include "main/imports.h" +#include "slang_storage.h" +#include "slang_mem.h" + +/* slang_storage_array */ + +GLboolean +slang_storage_array_construct(slang_storage_array * arr) +{ + arr->type = SLANG_STORE_AGGREGATE; + arr->aggregate = NULL; + arr->length = 0; + return GL_TRUE; +} + +GLvoid +slang_storage_array_destruct(slang_storage_array * arr) +{ + if (arr->aggregate != NULL) { + slang_storage_aggregate_destruct(arr->aggregate); + _slang_free(arr->aggregate); + } +} + +/* slang_storage_aggregate */ + +GLboolean +slang_storage_aggregate_construct(slang_storage_aggregate * agg) +{ + agg->arrays = NULL; + agg->count = 0; + return GL_TRUE; +} + +GLvoid +slang_storage_aggregate_destruct(slang_storage_aggregate * agg) +{ + GLuint i; + + for (i = 0; i < agg->count; i++) + slang_storage_array_destruct(agg->arrays + i); + _slang_free(agg->arrays); +} + +static slang_storage_array * +slang_storage_aggregate_push_new(slang_storage_aggregate * agg) +{ + slang_storage_array *arr = NULL; + + agg->arrays = (slang_storage_array *) + _slang_realloc(agg->arrays, + agg->count * sizeof(slang_storage_array), + (agg->count + 1) * sizeof(slang_storage_array)); + if (agg->arrays != NULL) { + arr = agg->arrays + agg->count; + if (!slang_storage_array_construct(arr)) + return NULL; + agg->count++; + } + return arr; +} + +/* _slang_aggregate_variable() */ + +static GLboolean +aggregate_vector(slang_storage_aggregate * agg, slang_storage_type basic_type, + GLuint row_count) +{ + slang_storage_array *arr = slang_storage_aggregate_push_new(agg); + if (arr == NULL) + return GL_FALSE; + arr->type = basic_type; + arr->length = row_count; + return GL_TRUE; +} + +static GLboolean +aggregate_matrix(slang_storage_aggregate * agg, slang_storage_type basic_type, + GLuint columns, GLuint rows) +{ + slang_storage_array *arr = slang_storage_aggregate_push_new(agg); + if (arr == NULL) + return GL_FALSE; + arr->type = SLANG_STORE_AGGREGATE; + arr->length = columns; + arr->aggregate = (slang_storage_aggregate *) + _slang_alloc(sizeof(slang_storage_aggregate)); + if (arr->aggregate == NULL) + return GL_FALSE; + if (!slang_storage_aggregate_construct(arr->aggregate)) { + _slang_free(arr->aggregate); + arr->aggregate = NULL; + return GL_FALSE; + } + if (!aggregate_vector(arr->aggregate, basic_type, rows)) + return GL_FALSE; + return GL_TRUE; +} + + +static GLboolean +aggregate_variables(slang_storage_aggregate * agg, + slang_variable_scope * vars, slang_function_scope * funcs, + slang_struct_scope * structs, + slang_variable_scope * globals, + slang_atom_pool * atoms) +{ + GLuint i; + + for (i = 0; i < vars->num_variables; i++) + if (!_slang_aggregate_variable(agg, &vars->variables[i]->type.specifier, + vars->variables[i]->array_len, funcs, + structs, globals, atoms)) + return GL_FALSE; + return GL_TRUE; +} + + +GLboolean +_slang_aggregate_variable(slang_storage_aggregate * agg, + slang_type_specifier * spec, GLuint array_len, + slang_function_scope * funcs, + slang_struct_scope * structs, + slang_variable_scope * vars, + slang_atom_pool * atoms) +{ + switch (spec->type) { + case SLANG_SPEC_BOOL: + return aggregate_vector(agg, SLANG_STORE_BOOL, 1); + case SLANG_SPEC_BVEC2: + return aggregate_vector(agg, SLANG_STORE_BOOL, 2); + case SLANG_SPEC_BVEC3: + return aggregate_vector(agg, SLANG_STORE_BOOL, 3); + case SLANG_SPEC_BVEC4: + return aggregate_vector(agg, SLANG_STORE_BOOL, 4); + case SLANG_SPEC_INT: + return aggregate_vector(agg, SLANG_STORE_INT, 1); + case SLANG_SPEC_IVEC2: + return aggregate_vector(agg, SLANG_STORE_INT, 2); + case SLANG_SPEC_IVEC3: + return aggregate_vector(agg, SLANG_STORE_INT, 3); + case SLANG_SPEC_IVEC4: + return aggregate_vector(agg, SLANG_STORE_INT, 4); + case SLANG_SPEC_FLOAT: + return aggregate_vector(agg, SLANG_STORE_FLOAT, 1); + case SLANG_SPEC_VEC2: + return aggregate_vector(agg, SLANG_STORE_FLOAT, 2); + case SLANG_SPEC_VEC3: + return aggregate_vector(agg, SLANG_STORE_FLOAT, 3); + case SLANG_SPEC_VEC4: + return aggregate_vector(agg, SLANG_STORE_FLOAT, 4); + case SLANG_SPEC_MAT2: + return aggregate_matrix(agg, SLANG_STORE_FLOAT, 2, 2); + case SLANG_SPEC_MAT3: + return aggregate_matrix(agg, SLANG_STORE_FLOAT, 3, 3); + case SLANG_SPEC_MAT4: + return aggregate_matrix(agg, SLANG_STORE_FLOAT, 4, 4); + + case SLANG_SPEC_MAT23: + return aggregate_matrix(agg, SLANG_STORE_FLOAT, 2, 3); + case SLANG_SPEC_MAT32: + return aggregate_matrix(agg, SLANG_STORE_FLOAT, 3, 2); + case SLANG_SPEC_MAT24: + return aggregate_matrix(agg, SLANG_STORE_FLOAT, 2, 4); + case SLANG_SPEC_MAT42: + return aggregate_matrix(agg, SLANG_STORE_FLOAT, 4, 2); + case SLANG_SPEC_MAT34: + return aggregate_matrix(agg, SLANG_STORE_FLOAT, 3, 4); + case SLANG_SPEC_MAT43: + return aggregate_matrix(agg, SLANG_STORE_FLOAT, 4, 3); + + case SLANG_SPEC_SAMPLER1D: + case SLANG_SPEC_SAMPLER2D: + case SLANG_SPEC_SAMPLER3D: + case SLANG_SPEC_SAMPLERCUBE: + case SLANG_SPEC_SAMPLER1DSHADOW: + case SLANG_SPEC_SAMPLER2DSHADOW: + case SLANG_SPEC_SAMPLER2DRECT: + case SLANG_SPEC_SAMPLER2DRECTSHADOW: + return aggregate_vector(agg, SLANG_STORE_INT, 1); + case SLANG_SPEC_STRUCT: + return aggregate_variables(agg, spec->_struct->fields, funcs, structs, + vars, atoms); + case SLANG_SPEC_ARRAY: + { + slang_storage_array *arr; + + arr = slang_storage_aggregate_push_new(agg); + if (arr == NULL) + return GL_FALSE; + arr->type = SLANG_STORE_AGGREGATE; + arr->aggregate = (slang_storage_aggregate *) + _slang_alloc(sizeof(slang_storage_aggregate)); + if (arr->aggregate == NULL) + return GL_FALSE; + if (!slang_storage_aggregate_construct(arr->aggregate)) { + _slang_free(arr->aggregate); + arr->aggregate = NULL; + return GL_FALSE; + } + if (!_slang_aggregate_variable(arr->aggregate, spec->_array, 0, + funcs, structs, vars, atoms)) + return GL_FALSE; + arr->length = array_len; + /* TODO: check if 0 < arr->length <= 65535 */ + } + return GL_TRUE; + default: + return GL_FALSE; + } +} + + +GLuint +_slang_sizeof_type(slang_storage_type type) +{ + if (type == SLANG_STORE_AGGREGATE) + return 0; + if (type == SLANG_STORE_VEC4) + return 4 * sizeof(GLfloat); + return sizeof(GLfloat); +} + + +GLuint +_slang_sizeof_aggregate(const slang_storage_aggregate * agg) +{ + GLuint i, size = 0; + + for (i = 0; i < agg->count; i++) { + slang_storage_array *arr = &agg->arrays[i]; + GLuint element_size; + + if (arr->type == SLANG_STORE_AGGREGATE) + element_size = _slang_sizeof_aggregate(arr->aggregate); + else + element_size = _slang_sizeof_type(arr->type); + size += element_size * arr->length; + } + return size; +} + + +#if 0 +GLboolean +_slang_flatten_aggregate(slang_storage_aggregate * flat, + const slang_storage_aggregate * agg) +{ + GLuint i; + + for (i = 0; i < agg->count; i++) { + GLuint j; + + for (j = 0; j < agg->arrays[i].length; j++) { + if (agg->arrays[i].type == SLANG_STORE_AGGREGATE) { + if (!_slang_flatten_aggregate(flat, agg->arrays[i].aggregate)) + return GL_FALSE; + } + else { + GLuint k, count; + slang_storage_type type; + + if (agg->arrays[i].type == SLANG_STORE_VEC4) { + count = 4; + type = SLANG_STORE_FLOAT; + } + else { + count = 1; + type = agg->arrays[i].type; + } + + for (k = 0; k < count; k++) { + slang_storage_array *arr; + + arr = slang_storage_aggregate_push_new(flat); + if (arr == NULL) + return GL_FALSE; + arr->type = type; + arr->length = 1; + } + } + } + } + return GL_TRUE; +} +#endif diff --git a/mesalib/src/mesa/shader/slang/slang_storage.h b/mesalib/src/mesa/shader/slang/slang_storage.h new file mode 100644 index 000000000..1876a36dd --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_storage.h @@ -0,0 +1,139 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 2005-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef SLANG_STORAGE_H +#define SLANG_STORAGE_H + +#include "slang_compile.h" + + +/* + * Program variable data storage is kept completely transparent to the + * front-end compiler. It is up to the back-end how the data is + * actually allocated. The slang_storage_type enum provides the basic + * information about how the memory is interpreted. This abstract + * piece of memory is called a data slot. A data slot of a particular + * type has a fixed size. + * + * For now, only the three basic types are supported, that is bool, + * int and float. Other built-in types like vector or matrix can + * easily be decomposed into a series of basic types. + * + * If the vec4 module is enabled, 4-component vectors of floats are + * used when possible. 4x4 matrices are constructed of 4 vec4 slots. + */ +typedef enum slang_storage_type_ +{ + /* core */ + SLANG_STORE_AGGREGATE, + SLANG_STORE_BOOL, + SLANG_STORE_INT, + SLANG_STORE_FLOAT, + /* vec4 */ + SLANG_STORE_VEC4 +} slang_storage_type; + + +/** + * The slang_storage_array structure groups data slots of the same + * type into an array. This array has a fixed length. Arrays are + * required to have a size equal to the sum of sizes of its + * elements. They are also required to support indirect + * addressing. That is, if B references first data slot in the array, + * S is the size of the data slot and I is the integral index that is + * not known at compile time, B+I*S references I-th data slot. + * + * This structure is also used to break down built-in data types that + * are not supported directly. Vectors, like vec3, are constructed + * from arrays of their basic types. Matrices are formed of an array + * of column vectors, which are in turn processed as other vectors. + */ +typedef struct slang_storage_array_ +{ + slang_storage_type type; + struct slang_storage_aggregate_ *aggregate; + GLuint length; +} slang_storage_array; + +GLboolean slang_storage_array_construct (slang_storage_array *); +GLvoid slang_storage_array_destruct (slang_storage_array *); + + +/** + * The slang_storage_aggregate structure relaxes the indirect + * addressing requirement for slang_storage_array + * structure. Aggregates are always accessed statically - its member + * addresses are well-known at compile time. For example, user-defined + * types are implemented as aggregates. Aggregates can collect data of + * a different type. + */ +typedef struct slang_storage_aggregate_ +{ + slang_storage_array *arrays; + GLuint count; +} slang_storage_aggregate; + +GLboolean slang_storage_aggregate_construct (slang_storage_aggregate *); +GLvoid slang_storage_aggregate_destruct (slang_storage_aggregate *); + + +extern GLboolean +_slang_aggregate_variable(slang_storage_aggregate *agg, + slang_type_specifier *spec, + GLuint array_len, + slang_function_scope *funcs, + slang_struct_scope *structs, + slang_variable_scope *vars, + slang_atom_pool *atoms); + +/* + * Returns the size (in machine units) of the given storage type. + * It is an error to pass-in SLANG_STORE_AGGREGATE. + * Returns 0 on error. + */ +extern GLuint +_slang_sizeof_type (slang_storage_type); + + +/** + * Returns total size (in machine units) of the given aggregate. + * Returns 0 on error. + */ +extern GLuint +_slang_sizeof_aggregate (const slang_storage_aggregate *); + + +#if 0 +/** + * Converts structured aggregate to a flat one, with arrays of generic + * type being one-element long. Returns GL_TRUE on success. Returns + * GL_FALSE otherwise. + */ +extern GLboolean +_slang_flatten_aggregate (slang_storage_aggregate *, + const slang_storage_aggregate *); + +#endif + +#endif /* SLANG_STORAGE_H */ diff --git a/mesalib/src/mesa/shader/slang/slang_typeinfo.c b/mesalib/src/mesa/shader/slang/slang_typeinfo.c new file mode 100644 index 000000000..4a48bc8b8 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_typeinfo.c @@ -0,0 +1,1138 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 2005-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_typeinfo.c + * slang type info + * \author Michal Krol + */ + +#include "main/imports.h" +#include "shader/prog_instruction.h" +#include "slang_typeinfo.h" +#include "slang_compile.h" +#include "slang_log.h" +#include "slang_mem.h" + + +/** + * Checks if a field selector is a general swizzle (an r-value swizzle + * with replicated components or an l-value swizzle mask) for a + * vector. Returns GL_TRUE if this is the case, <swz> is filled with + * swizzle information. Returns GL_FALSE otherwise. + */ +GLboolean +_slang_is_swizzle(const char *field, GLuint rows, slang_swizzle * swz) +{ + GLuint i; + GLboolean xyzw = GL_FALSE, rgba = GL_FALSE, stpq = GL_FALSE; + + /* init to undefined. + * We rely on undefined/nil values to distinguish between + * regular swizzles and writemasks. + * For example, the swizzle ".xNNN" is the writemask ".x". + * That's different than the swizzle ".xxxx". + */ + for (i = 0; i < 4; i++) + swz->swizzle[i] = SWIZZLE_NIL; + + /* the swizzle can be at most 4-component long */ + swz->num_components = slang_string_length(field); + if (swz->num_components > 4) + return GL_FALSE; + + for (i = 0; i < swz->num_components; i++) { + /* mark which swizzle group is used */ + switch (field[i]) { + case 'x': + case 'y': + case 'z': + case 'w': + xyzw = GL_TRUE; + break; + case 'r': + case 'g': + case 'b': + case 'a': + rgba = GL_TRUE; + break; + case 's': + case 't': + case 'p': + case 'q': + stpq = GL_TRUE; + break; + default: + return GL_FALSE; + } + + /* collect swizzle component */ + switch (field[i]) { + case 'x': + case 'r': + case 's': + swz->swizzle[i] = 0; + break; + case 'y': + case 'g': + case 't': + swz->swizzle[i] = 1; + break; + case 'z': + case 'b': + case 'p': + swz->swizzle[i] = 2; + break; + case 'w': + case 'a': + case 'q': + swz->swizzle[i] = 3; + break; + } + + /* check if the component is valid for given vector's row count */ + if (rows <= swz->swizzle[i]) + return GL_FALSE; + } + + /* only one swizzle group can be used */ + if ((xyzw && rgba) || (xyzw && stpq) || (rgba && stpq)) + return GL_FALSE; + + return GL_TRUE; +} + + + +/** + * Checks if a general swizzle is an l-value swizzle - these swizzles + * do not have duplicated fields. Returns GL_TRUE if this is a + * swizzle mask. Returns GL_FALSE otherwise + */ +static GLboolean +_slang_is_swizzle_mask(const slang_swizzle * swz, GLuint rows) +{ + GLuint i, c = 0; + + /* the swizzle may not be longer than the vector dim */ + if (swz->num_components > rows) + return GL_FALSE; + + /* the swizzle components cannot be duplicated */ + for (i = 0; i < swz->num_components; i++) { + if ((c & (1 << swz->swizzle[i])) != 0) + return GL_FALSE; + c |= 1 << swz->swizzle[i]; + } + + return GL_TRUE; +} + + +/** + * Combines (multiplies) two swizzles to form single swizzle. + * Example: "vec.wzyx.yx" --> "vec.zw". + */ +static void +_slang_multiply_swizzles(slang_swizzle * dst, const slang_swizzle * left, + const slang_swizzle * right) +{ + GLuint i; + + dst->num_components = right->num_components; + for (i = 0; i < right->num_components; i++) + dst->swizzle[i] = left->swizzle[right->swizzle[i]]; +} + + +typedef struct +{ + const char *name; + slang_type_specifier_type type; +} type_specifier_type_name; + +static const type_specifier_type_name type_specifier_type_names[] = { + {"void", SLANG_SPEC_VOID}, + {"bool", SLANG_SPEC_BOOL}, + {"bvec2", SLANG_SPEC_BVEC2}, + {"bvec3", SLANG_SPEC_BVEC3}, + {"bvec4", SLANG_SPEC_BVEC4}, + {"int", SLANG_SPEC_INT}, + {"ivec2", SLANG_SPEC_IVEC2}, + {"ivec3", SLANG_SPEC_IVEC3}, + {"ivec4", SLANG_SPEC_IVEC4}, + {"float", SLANG_SPEC_FLOAT}, + {"vec2", SLANG_SPEC_VEC2}, + {"vec3", SLANG_SPEC_VEC3}, + {"vec4", SLANG_SPEC_VEC4}, + {"mat2", SLANG_SPEC_MAT2}, + {"mat3", SLANG_SPEC_MAT3}, + {"mat4", SLANG_SPEC_MAT4}, + {"mat2x3", SLANG_SPEC_MAT23}, + {"mat3x2", SLANG_SPEC_MAT32}, + {"mat2x4", SLANG_SPEC_MAT24}, + {"mat4x2", SLANG_SPEC_MAT42}, + {"mat3x4", SLANG_SPEC_MAT34}, + {"mat4x3", SLANG_SPEC_MAT43}, + {"sampler1D", SLANG_SPEC_SAMPLER1D}, + {"sampler2D", SLANG_SPEC_SAMPLER2D}, + {"sampler3D", SLANG_SPEC_SAMPLER3D}, + {"samplerCube", SLANG_SPEC_SAMPLERCUBE}, + {"sampler1DShadow", SLANG_SPEC_SAMPLER1DSHADOW}, + {"sampler2DShadow", SLANG_SPEC_SAMPLER2DSHADOW}, + {"sampler2DRect", SLANG_SPEC_SAMPLER2DRECT}, + {"sampler2DRectShadow", SLANG_SPEC_SAMPLER2DRECTSHADOW}, + {NULL, SLANG_SPEC_VOID} +}; + +slang_type_specifier_type +slang_type_specifier_type_from_string(const char *name) +{ + const type_specifier_type_name *p = type_specifier_type_names; + while (p->name != NULL) { + if (slang_string_compare(p->name, name) == 0) + break; + p++; + } + return p->type; +} + +const char * +slang_type_specifier_type_to_string(slang_type_specifier_type type) +{ + const type_specifier_type_name *p = type_specifier_type_names; + while (p->name != NULL) { + if (p->type == type) + break; + p++; + } + return p->name; +} + +/* slang_fully_specified_type */ + +int +slang_fully_specified_type_construct(slang_fully_specified_type * type) +{ + type->qualifier = SLANG_QUAL_NONE; + slang_type_specifier_ctr(&type->specifier); + return 1; +} + +void +slang_fully_specified_type_destruct(slang_fully_specified_type * type) +{ + slang_type_specifier_dtr(&type->specifier); +} + +int +slang_fully_specified_type_copy(slang_fully_specified_type * x, + const slang_fully_specified_type * y) +{ + slang_fully_specified_type z; + + if (!slang_fully_specified_type_construct(&z)) + return 0; + z.qualifier = y->qualifier; + z.precision = y->precision; + z.variant = y->variant; + z.centroid = y->centroid; + z.array_len = y->array_len; + if (!slang_type_specifier_copy(&z.specifier, &y->specifier)) { + slang_fully_specified_type_destruct(&z); + return 0; + } + slang_fully_specified_type_destruct(x); + *x = z; + return 1; +} + + + +GLvoid +slang_type_specifier_ctr(slang_type_specifier * self) +{ + self->type = SLANG_SPEC_VOID; + self->_struct = NULL; + self->_array = NULL; +} + +GLvoid +slang_type_specifier_dtr(slang_type_specifier * self) +{ + if (self->_struct != NULL) { + slang_struct_destruct(self->_struct); + _slang_free(self->_struct); + } + if (self->_array != NULL) { + slang_type_specifier_dtr(self->_array); + _slang_free(self->_array); + } +} + +slang_type_specifier * +slang_type_specifier_new(slang_type_specifier_type type, + struct slang_struct_ *_struct, + struct slang_type_specifier_ *_array) +{ + slang_type_specifier *spec = + (slang_type_specifier *) _slang_alloc(sizeof(slang_type_specifier)); + if (spec) { + spec->type = type; + spec->_struct = _struct; + spec->_array = _array; + } + return spec; +} + +GLboolean +slang_type_specifier_copy(slang_type_specifier * x, + const slang_type_specifier * y) +{ + slang_type_specifier z; + + slang_type_specifier_ctr(&z); + z.type = y->type; + if (z.type == SLANG_SPEC_STRUCT) { + z._struct = (slang_struct *) _slang_alloc(sizeof(slang_struct)); + if (z._struct == NULL) { + slang_type_specifier_dtr(&z); + return GL_FALSE; + } + if (!slang_struct_construct(z._struct)) { + _slang_free(z._struct); + slang_type_specifier_dtr(&z); + return GL_FALSE; + } + if (!slang_struct_copy(z._struct, y->_struct)) { + slang_type_specifier_dtr(&z); + return GL_FALSE; + } + } + else if (z.type == SLANG_SPEC_ARRAY) { + z._array = (slang_type_specifier *) + _slang_alloc(sizeof(slang_type_specifier)); + if (z._array == NULL) { + slang_type_specifier_dtr(&z); + return GL_FALSE; + } + slang_type_specifier_ctr(z._array); + if (!slang_type_specifier_copy(z._array, y->_array)) { + slang_type_specifier_dtr(&z); + return GL_FALSE; + } + } + slang_type_specifier_dtr(x); + *x = z; + return GL_TRUE; +} + + +/** + * Test if two types are equal. + */ +GLboolean +slang_type_specifier_equal(const slang_type_specifier * x, + const slang_type_specifier * y) +{ + if (x->type != y->type) + return GL_FALSE; + if (x->type == SLANG_SPEC_STRUCT) + return slang_struct_equal(x->_struct, y->_struct); + if (x->type == SLANG_SPEC_ARRAY) + return slang_type_specifier_equal(x->_array, y->_array); + return GL_TRUE; +} + + +/** + * As above, but allow float/int casting. + */ +GLboolean +slang_type_specifier_compatible(const slang_type_specifier * x, + const slang_type_specifier * y) +{ + /* special case: float == int */ + if (x->type == SLANG_SPEC_INT && y->type == SLANG_SPEC_FLOAT) { + return GL_TRUE; + } + /* XXX may need to add bool/int compatibility, etc */ + + if (x->type != y->type) + return GL_FALSE; + if (x->type == SLANG_SPEC_STRUCT) + return slang_struct_equal(x->_struct, y->_struct); + if (x->type == SLANG_SPEC_ARRAY) + return slang_type_specifier_compatible(x->_array, y->_array); + return GL_TRUE; +} + + +GLboolean +slang_typeinfo_construct(slang_typeinfo * ti) +{ + _mesa_bzero(ti, sizeof(*ti)); + slang_type_specifier_ctr(&ti->spec); + ti->array_len = 0; + return GL_TRUE; +} + +GLvoid +slang_typeinfo_destruct(slang_typeinfo * ti) +{ + slang_type_specifier_dtr(&ti->spec); +} + + + +/** + * Determine the return type of a function. + * \param a_name the function name + * \param param function parameters (overloading) + * \param num_params number of parameters to function + * \param space namespace to search + * \param spec returns the type + * \param funFound returns pointer to the function, or NULL if not found. + * \return GL_TRUE for success, GL_FALSE if failure (bad function name) + */ +static GLboolean +_slang_typeof_function(slang_atom a_name, + slang_operation * params, GLuint num_params, + const slang_name_space * space, + slang_type_specifier * spec, + slang_function **funFound, + slang_atom_pool *atoms, slang_info_log *log) +{ + GLboolean error; + + *funFound = _slang_function_locate(space->funcs, a_name, params, + num_params, space, atoms, log, &error); + if (error) + return GL_FALSE; + + if (!*funFound) + return GL_TRUE; /* yes, not false */ + + return slang_type_specifier_copy(spec, &(*funFound)->header.type.specifier); +} + + +/** + * Determine the type of a math function. + * \param name name of the operator, one of +,-,*,/ or unary - + * \param params array of function parameters + * \param num_params number of parameters + * \param space namespace to use + * \param spec returns the function's type + * \param atoms atom pool + * \return GL_TRUE for success, GL_FALSE if failure + */ +static GLboolean +typeof_math_call(const char *name, slang_operation *call, + const slang_name_space * space, + slang_type_specifier * spec, + slang_atom_pool * atoms, + slang_info_log *log) +{ + if (call->fun) { + /* we've previously resolved this function call */ + slang_type_specifier_copy(spec, &call->fun->header.type.specifier); + return GL_TRUE; + } + else { + slang_atom atom; + slang_function *fun; + + /* number of params: */ + assert(call->num_children == 1 || call->num_children == 2); + + atom = slang_atom_pool_atom(atoms, name); + if (!_slang_typeof_function(atom, call->children, call->num_children, + space, spec, &fun, atoms, log)) + return GL_FALSE; + + if (fun) { + /* Save pointer to save time in future */ + call->fun = fun; + return GL_TRUE; + } + return GL_FALSE; + } +} + + +/** + * Determine the return type of an operation. + * \param op the operation node + * \param space the namespace to use + * \param ti the returned type + * \param atoms atom pool + * \return GL_TRUE for success, GL_FALSE if failure + */ +GLboolean +_slang_typeof_operation(slang_operation * op, + const slang_name_space * space, + slang_typeinfo * ti, + slang_atom_pool * atoms, + slang_info_log *log) +{ + ti->can_be_referenced = GL_FALSE; + ti->is_swizzled = GL_FALSE; + + switch (op->type) { + case SLANG_OPER_BLOCK_NO_NEW_SCOPE: + case SLANG_OPER_BLOCK_NEW_SCOPE: + case SLANG_OPER_ASM: + case SLANG_OPER_BREAK: + case SLANG_OPER_CONTINUE: + case SLANG_OPER_DISCARD: + case SLANG_OPER_RETURN: + case SLANG_OPER_IF: + case SLANG_OPER_WHILE: + case SLANG_OPER_DO: + case SLANG_OPER_FOR: + case SLANG_OPER_VOID: + ti->spec.type = SLANG_SPEC_VOID; + break; + case SLANG_OPER_EXPRESSION: + case SLANG_OPER_ASSIGN: + case SLANG_OPER_ADDASSIGN: + case SLANG_OPER_SUBASSIGN: + case SLANG_OPER_MULASSIGN: + case SLANG_OPER_DIVASSIGN: + case SLANG_OPER_PREINCREMENT: + case SLANG_OPER_PREDECREMENT: + if (!_slang_typeof_operation(op->children, space, ti, atoms, log)) + return GL_FALSE; + break; + case SLANG_OPER_LITERAL_BOOL: + if (op->literal_size == 1) + ti->spec.type = SLANG_SPEC_BOOL; + else if (op->literal_size == 2) + ti->spec.type = SLANG_SPEC_BVEC2; + else if (op->literal_size == 3) + ti->spec.type = SLANG_SPEC_BVEC3; + else if (op->literal_size == 4) + ti->spec.type = SLANG_SPEC_BVEC4; + else { + _mesa_problem(NULL, + "Unexpected bool literal_size %d in _slang_typeof_operation()", + op->literal_size); + ti->spec.type = SLANG_SPEC_BOOL; + } + break; + case SLANG_OPER_LOGICALOR: + case SLANG_OPER_LOGICALXOR: + case SLANG_OPER_LOGICALAND: + case SLANG_OPER_EQUAL: + case SLANG_OPER_NOTEQUAL: + case SLANG_OPER_LESS: + case SLANG_OPER_GREATER: + case SLANG_OPER_LESSEQUAL: + case SLANG_OPER_GREATEREQUAL: + case SLANG_OPER_NOT: + ti->spec.type = SLANG_SPEC_BOOL; + break; + case SLANG_OPER_LITERAL_INT: + if (op->literal_size == 1) + ti->spec.type = SLANG_SPEC_INT; + else if (op->literal_size == 2) + ti->spec.type = SLANG_SPEC_IVEC2; + else if (op->literal_size == 3) + ti->spec.type = SLANG_SPEC_IVEC3; + else if (op->literal_size == 4) + ti->spec.type = SLANG_SPEC_IVEC4; + else { + _mesa_problem(NULL, + "Unexpected int literal_size %d in _slang_typeof_operation()", + op->literal_size); + ti->spec.type = SLANG_SPEC_INT; + } + break; + case SLANG_OPER_LITERAL_FLOAT: + if (op->literal_size == 1) + ti->spec.type = SLANG_SPEC_FLOAT; + else if (op->literal_size == 2) + ti->spec.type = SLANG_SPEC_VEC2; + else if (op->literal_size == 3) + ti->spec.type = SLANG_SPEC_VEC3; + else if (op->literal_size == 4) + ti->spec.type = SLANG_SPEC_VEC4; + else { + _mesa_problem(NULL, + "Unexpected float literal_size %d in _slang_typeof_operation()", + op->literal_size); + ti->spec.type = SLANG_SPEC_FLOAT; + } + break; + case SLANG_OPER_IDENTIFIER: + case SLANG_OPER_VARIABLE_DECL: + { + slang_variable *var; + var = _slang_variable_locate(op->locals, op->a_id, GL_TRUE); + if (!var) { + slang_info_log_error(log, "undefined variable '%s'", + (char *) op->a_id); + return GL_FALSE; + } + if (!slang_type_specifier_copy(&ti->spec, &var->type.specifier)) { + slang_info_log_memory(log); + return GL_FALSE; + } + ti->can_be_referenced = GL_TRUE; + if (var->type.specifier.type == SLANG_SPEC_ARRAY && + var->type.array_len >= 1) { + /* the datatype is an array, ex: float[3] x; */ + ti->array_len = var->type.array_len; + } + else { + /* the variable is an array, ex: float x[3]; */ + ti->array_len = var->array_len; + } + } + break; + case SLANG_OPER_SEQUENCE: + /* TODO: check [0] and [1] if they match */ + if (!_slang_typeof_operation(&op->children[1], space, ti, atoms, log)) { + return GL_FALSE; + } + ti->can_be_referenced = GL_FALSE; + ti->is_swizzled = GL_FALSE; + break; + /*case SLANG_OPER_MODASSIGN: */ + /*case SLANG_OPER_LSHASSIGN: */ + /*case SLANG_OPER_RSHASSIGN: */ + /*case SLANG_OPER_ORASSIGN: */ + /*case SLANG_OPER_XORASSIGN: */ + /*case SLANG_OPER_ANDASSIGN: */ + case SLANG_OPER_SELECT: + /* TODO: check [1] and [2] if they match */ + if (!_slang_typeof_operation(&op->children[1], space, ti, atoms, log)) { + return GL_FALSE; + } + ti->can_be_referenced = GL_FALSE; + ti->is_swizzled = GL_FALSE; + break; + /*case SLANG_OPER_BITOR: */ + /*case SLANG_OPER_BITXOR: */ + /*case SLANG_OPER_BITAND: */ + /*case SLANG_OPER_LSHIFT: */ + /*case SLANG_OPER_RSHIFT: */ + case SLANG_OPER_ADD: + assert(op->num_children == 2); + if (!typeof_math_call("+", op, space, &ti->spec, atoms, log)) + return GL_FALSE; + break; + case SLANG_OPER_SUBTRACT: + assert(op->num_children == 2); + if (!typeof_math_call("-", op, space, &ti->spec, atoms, log)) + return GL_FALSE; + break; + case SLANG_OPER_MULTIPLY: + assert(op->num_children == 2); + if (!typeof_math_call("*", op, space, &ti->spec, atoms, log)) + return GL_FALSE; + break; + case SLANG_OPER_DIVIDE: + assert(op->num_children == 2); + if (!typeof_math_call("/", op, space, &ti->spec, atoms, log)) + return GL_FALSE; + break; + /*case SLANG_OPER_MODULUS: */ + case SLANG_OPER_PLUS: + if (!_slang_typeof_operation(op->children, space, ti, atoms, log)) + return GL_FALSE; + ti->can_be_referenced = GL_FALSE; + ti->is_swizzled = GL_FALSE; + break; + case SLANG_OPER_MINUS: + assert(op->num_children == 1); + if (!typeof_math_call("-", op, space, &ti->spec, atoms, log)) + return GL_FALSE; + break; + /*case SLANG_OPER_COMPLEMENT: */ + case SLANG_OPER_SUBSCRIPT: + { + slang_typeinfo _ti; + + if (!slang_typeinfo_construct(&_ti)) + return GL_FALSE; + if (!_slang_typeof_operation(op->children, space, &_ti, atoms, log)) { + slang_typeinfo_destruct(&_ti); + return GL_FALSE; + } + ti->can_be_referenced = _ti.can_be_referenced; + if (_ti.spec.type == SLANG_SPEC_ARRAY) { + if (!slang_type_specifier_copy(&ti->spec, _ti.spec._array)) { + slang_typeinfo_destruct(&_ti); + return GL_FALSE; + } + } + else { + if (!_slang_type_is_vector(_ti.spec.type) + && !_slang_type_is_matrix(_ti.spec.type)) { + slang_typeinfo_destruct(&_ti); + slang_info_log_error(log, "cannot index a non-array type"); + return GL_FALSE; + } + ti->spec.type = _slang_type_base(_ti.spec.type); + } + slang_typeinfo_destruct(&_ti); + } + break; + case SLANG_OPER_CALL: + if (op->array_constructor) { + /* build array typeinfo */ + ti->spec.type = SLANG_SPEC_ARRAY; + ti->spec._array = (slang_type_specifier *) + _slang_alloc(sizeof(slang_type_specifier)); + slang_type_specifier_ctr(ti->spec._array); + + ti->spec._array->type = + slang_type_specifier_type_from_string((char *) op->a_id); + ti->array_len = op->num_children; + } + else if (op->fun) { + /* we've resolved this call before */ + slang_type_specifier_copy(&ti->spec, &op->fun->header.type.specifier); + } + else { + slang_function *fun; + if (!_slang_typeof_function(op->a_id, op->children, op->num_children, + space, &ti->spec, &fun, atoms, log)) + return GL_FALSE; + if (fun) { + /* save result for future use */ + op->fun = fun; + } + else { + slang_struct *s = + slang_struct_scope_find(space->structs, op->a_id, GL_TRUE); + if (s) { + /* struct initializer */ + ti->spec.type = SLANG_SPEC_STRUCT; + ti->spec._struct = + (slang_struct *) _slang_alloc(sizeof(slang_struct)); + if (ti->spec._struct == NULL) + return GL_FALSE; + if (!slang_struct_construct(ti->spec._struct)) { + _slang_free(ti->spec._struct); + ti->spec._struct = NULL; + return GL_FALSE; + } + if (!slang_struct_copy(ti->spec._struct, s)) + return GL_FALSE; + } + else { + /* float, int, vec4, mat3, etc. constructor? */ + const char *name; + slang_type_specifier_type type; + + name = slang_atom_pool_id(atoms, op->a_id); + type = slang_type_specifier_type_from_string(name); + if (type == SLANG_SPEC_VOID) { + slang_info_log_error(log, "undefined function '%s'", name); + return GL_FALSE; + } + ti->spec.type = type; + } + } + } + break; + case SLANG_OPER_METHOD: + /* at this time, GLSL 1.20 only has one method: array.length() + * which returns an integer. + */ + ti->spec.type = SLANG_SPEC_INT; + break; + case SLANG_OPER_FIELD: + { + slang_typeinfo _ti; + + if (!slang_typeinfo_construct(&_ti)) + return GL_FALSE; + if (!_slang_typeof_operation(op->children, space, &_ti, atoms, log)) { + slang_typeinfo_destruct(&_ti); + return GL_FALSE; + } + if (_ti.spec.type == SLANG_SPEC_STRUCT) { + slang_variable *field; + + field = _slang_variable_locate(_ti.spec._struct->fields, op->a_id, + GL_FALSE); + if (field == NULL) { + slang_typeinfo_destruct(&_ti); + return GL_FALSE; + } + if (!slang_type_specifier_copy(&ti->spec, &field->type.specifier)) { + slang_typeinfo_destruct(&_ti); + return GL_FALSE; + } + ti->can_be_referenced = _ti.can_be_referenced; + ti->array_len = field->array_len; + } + else { + GLuint rows; + const char *swizzle; + slang_type_specifier_type base; + + /* determine the swizzle of the field expression */ + if (!_slang_type_is_vector(_ti.spec.type)) { + slang_typeinfo_destruct(&_ti); + slang_info_log_error(log, "Can't swizzle scalar expression"); + return GL_FALSE; + } + rows = _slang_type_dim(_ti.spec.type); + swizzle = slang_atom_pool_id(atoms, op->a_id); + if (!_slang_is_swizzle(swizzle, rows, &ti->swz)) { + slang_typeinfo_destruct(&_ti); + slang_info_log_error(log, "bad swizzle '%s'", swizzle); + return GL_FALSE; + } + ti->is_swizzled = GL_TRUE; + ti->can_be_referenced = _ti.can_be_referenced + && _slang_is_swizzle_mask(&ti->swz, rows); + if (_ti.is_swizzled) { + slang_swizzle swz; + + /* swizzle the swizzle */ + _slang_multiply_swizzles(&swz, &_ti.swz, &ti->swz); + ti->swz = swz; + } + base = _slang_type_base(_ti.spec.type); + switch (ti->swz.num_components) { + case 1: + ti->spec.type = base; + break; + case 2: + switch (base) { + case SLANG_SPEC_FLOAT: + ti->spec.type = SLANG_SPEC_VEC2; + break; + case SLANG_SPEC_INT: + ti->spec.type = SLANG_SPEC_IVEC2; + break; + case SLANG_SPEC_BOOL: + ti->spec.type = SLANG_SPEC_BVEC2; + break; + default: + break; + } + break; + case 3: + switch (base) { + case SLANG_SPEC_FLOAT: + ti->spec.type = SLANG_SPEC_VEC3; + break; + case SLANG_SPEC_INT: + ti->spec.type = SLANG_SPEC_IVEC3; + break; + case SLANG_SPEC_BOOL: + ti->spec.type = SLANG_SPEC_BVEC3; + break; + default: + break; + } + break; + case 4: + switch (base) { + case SLANG_SPEC_FLOAT: + ti->spec.type = SLANG_SPEC_VEC4; + break; + case SLANG_SPEC_INT: + ti->spec.type = SLANG_SPEC_IVEC4; + break; + case SLANG_SPEC_BOOL: + ti->spec.type = SLANG_SPEC_BVEC4; + break; + default: + break; + } + break; + default: + break; + } + } + slang_typeinfo_destruct(&_ti); + } + break; + case SLANG_OPER_POSTINCREMENT: + case SLANG_OPER_POSTDECREMENT: + if (!_slang_typeof_operation(op->children, space, ti, atoms, log)) + return GL_FALSE; + ti->can_be_referenced = GL_FALSE; + ti->is_swizzled = GL_FALSE; + break; + default: + return GL_FALSE; + } + + return GL_TRUE; +} + + +/** + * Determine if a type is a matrix. + * \return GL_TRUE if is a matrix, GL_FALSE otherwise. + */ +GLboolean +_slang_type_is_matrix(slang_type_specifier_type ty) +{ + switch (ty) { + case SLANG_SPEC_MAT2: + case SLANG_SPEC_MAT3: + case SLANG_SPEC_MAT4: + case SLANG_SPEC_MAT23: + case SLANG_SPEC_MAT32: + case SLANG_SPEC_MAT24: + case SLANG_SPEC_MAT42: + case SLANG_SPEC_MAT34: + case SLANG_SPEC_MAT43: + return GL_TRUE; + default: + return GL_FALSE; + } +} + + +/** + * Determine if a type is a vector. + * \return GL_TRUE if is a vector, GL_FALSE otherwise. + */ +GLboolean +_slang_type_is_vector(slang_type_specifier_type ty) +{ + switch (ty) { + case SLANG_SPEC_VEC2: + case SLANG_SPEC_VEC3: + case SLANG_SPEC_VEC4: + case SLANG_SPEC_IVEC2: + case SLANG_SPEC_IVEC3: + case SLANG_SPEC_IVEC4: + case SLANG_SPEC_BVEC2: + case SLANG_SPEC_BVEC3: + case SLANG_SPEC_BVEC4: + return GL_TRUE; + default: + return GL_FALSE; + } +} + + +/** + * Determine if a type is a float, float vector or float matrix. + * \return GL_TRUE if so, GL_FALSE otherwise + */ +GLboolean +_slang_type_is_float_vec_mat(slang_type_specifier_type ty) +{ + switch (ty) { + case SLANG_SPEC_FLOAT: + case SLANG_SPEC_VEC2: + case SLANG_SPEC_VEC3: + case SLANG_SPEC_VEC4: + case SLANG_SPEC_MAT2: + case SLANG_SPEC_MAT3: + case SLANG_SPEC_MAT4: + case SLANG_SPEC_MAT23: + case SLANG_SPEC_MAT32: + case SLANG_SPEC_MAT24: + case SLANG_SPEC_MAT42: + case SLANG_SPEC_MAT34: + case SLANG_SPEC_MAT43: + return GL_TRUE; + default: + return GL_FALSE; + } +} + + +/** + * Given a vector type, return the type of the vector's elements. + * For a matrix, return the type of the columns. + */ +slang_type_specifier_type +_slang_type_base(slang_type_specifier_type ty) +{ + switch (ty) { + case SLANG_SPEC_FLOAT: + case SLANG_SPEC_VEC2: + case SLANG_SPEC_VEC3: + case SLANG_SPEC_VEC4: + return SLANG_SPEC_FLOAT; + case SLANG_SPEC_INT: + case SLANG_SPEC_IVEC2: + case SLANG_SPEC_IVEC3: + case SLANG_SPEC_IVEC4: + return SLANG_SPEC_INT; + case SLANG_SPEC_BOOL: + case SLANG_SPEC_BVEC2: + case SLANG_SPEC_BVEC3: + case SLANG_SPEC_BVEC4: + return SLANG_SPEC_BOOL; + case SLANG_SPEC_MAT2: + return SLANG_SPEC_VEC2; + case SLANG_SPEC_MAT3: + return SLANG_SPEC_VEC3; + case SLANG_SPEC_MAT4: + return SLANG_SPEC_VEC4; + case SLANG_SPEC_MAT23: + return SLANG_SPEC_VEC3; + case SLANG_SPEC_MAT32: + return SLANG_SPEC_VEC2; + case SLANG_SPEC_MAT24: + return SLANG_SPEC_VEC4; + case SLANG_SPEC_MAT42: + return SLANG_SPEC_VEC2; + case SLANG_SPEC_MAT34: + return SLANG_SPEC_VEC4; + case SLANG_SPEC_MAT43: + return SLANG_SPEC_VEC3; + default: + return SLANG_SPEC_VOID; + } +} + + +/** + * Return the dimensionality of a vector, or for a matrix, return number + * of columns. + */ +GLuint +_slang_type_dim(slang_type_specifier_type ty) +{ + switch (ty) { + case SLANG_SPEC_FLOAT: + case SLANG_SPEC_INT: + case SLANG_SPEC_BOOL: + return 1; + case SLANG_SPEC_VEC2: + case SLANG_SPEC_IVEC2: + case SLANG_SPEC_BVEC2: + case SLANG_SPEC_MAT2: + return 2; + case SLANG_SPEC_VEC3: + case SLANG_SPEC_IVEC3: + case SLANG_SPEC_BVEC3: + case SLANG_SPEC_MAT3: + return 3; + case SLANG_SPEC_VEC4: + case SLANG_SPEC_IVEC4: + case SLANG_SPEC_BVEC4: + case SLANG_SPEC_MAT4: + return 4; + + case SLANG_SPEC_MAT23: + return 2; + case SLANG_SPEC_MAT32: + return 3; + case SLANG_SPEC_MAT24: + return 2; + case SLANG_SPEC_MAT42: + return 4; + case SLANG_SPEC_MAT34: + return 3; + case SLANG_SPEC_MAT43: + return 4; + + default: + return 0; + } +} + + +/** + * Return the GL_* type that corresponds to a SLANG_SPEC_* type. + */ +GLenum +_slang_gltype_from_specifier(const slang_type_specifier *type) +{ + switch (type->type) { + case SLANG_SPEC_BOOL: + return GL_BOOL; + case SLANG_SPEC_BVEC2: + return GL_BOOL_VEC2; + case SLANG_SPEC_BVEC3: + return GL_BOOL_VEC3; + case SLANG_SPEC_BVEC4: + return GL_BOOL_VEC4; + case SLANG_SPEC_INT: + return GL_INT; + case SLANG_SPEC_IVEC2: + return GL_INT_VEC2; + case SLANG_SPEC_IVEC3: + return GL_INT_VEC3; + case SLANG_SPEC_IVEC4: + return GL_INT_VEC4; + case SLANG_SPEC_FLOAT: + return GL_FLOAT; + case SLANG_SPEC_VEC2: + return GL_FLOAT_VEC2; + case SLANG_SPEC_VEC3: + return GL_FLOAT_VEC3; + case SLANG_SPEC_VEC4: + return GL_FLOAT_VEC4; + case SLANG_SPEC_MAT2: + return GL_FLOAT_MAT2; + case SLANG_SPEC_MAT3: + return GL_FLOAT_MAT3; + case SLANG_SPEC_MAT4: + return GL_FLOAT_MAT4; + case SLANG_SPEC_MAT23: + return GL_FLOAT_MAT2x3; + case SLANG_SPEC_MAT32: + return GL_FLOAT_MAT3x2; + case SLANG_SPEC_MAT24: + return GL_FLOAT_MAT2x4; + case SLANG_SPEC_MAT42: + return GL_FLOAT_MAT4x2; + case SLANG_SPEC_MAT34: + return GL_FLOAT_MAT3x4; + case SLANG_SPEC_MAT43: + return GL_FLOAT_MAT4x3; + case SLANG_SPEC_SAMPLER1D: + return GL_SAMPLER_1D; + case SLANG_SPEC_SAMPLER2D: + return GL_SAMPLER_2D; + case SLANG_SPEC_SAMPLER3D: + return GL_SAMPLER_3D; + case SLANG_SPEC_SAMPLERCUBE: + return GL_SAMPLER_CUBE; + case SLANG_SPEC_SAMPLER1DSHADOW: + return GL_SAMPLER_1D_SHADOW; + case SLANG_SPEC_SAMPLER2DSHADOW: + return GL_SAMPLER_2D_SHADOW; + case SLANG_SPEC_SAMPLER2DRECT: + return GL_SAMPLER_2D_RECT_ARB; + case SLANG_SPEC_SAMPLER2DRECTSHADOW: + return GL_SAMPLER_2D_RECT_SHADOW_ARB; + case SLANG_SPEC_ARRAY: + return _slang_gltype_from_specifier(type->_array); + case SLANG_SPEC_STRUCT: + /* fall-through */ + default: + return GL_NONE; + } +} + diff --git a/mesalib/src/mesa/shader/slang/slang_typeinfo.h b/mesalib/src/mesa/shader/slang/slang_typeinfo.h new file mode 100644 index 000000000..e6fecd350 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_typeinfo.h @@ -0,0 +1,239 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 2005-2006 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef SLANG_TYPEINFO_H +#define SLANG_TYPEINFO_H 1 + +#include "main/imports.h" +#include "main/mtypes.h" +#include "slang_log.h" +#include "slang_utility.h" +#include "slang_vartable.h" + + +struct slang_operation_; + +struct slang_name_space_; + + + +/** + * Holds complete information about vector swizzle - the <swizzle> + * array contains vector component source indices, where 0 is "x", 1 + * is "y", 2 is "z" and 3 is "w". + * Example: "xwz" --> { 3, { 0, 3, 2, not used } }. + */ +typedef struct slang_swizzle_ +{ + GLuint num_components; + GLuint swizzle[4]; +} slang_swizzle; + +extern GLboolean +_slang_is_swizzle(const char *field, GLuint rows, slang_swizzle *swz); + + +typedef enum slang_type_variant_ +{ + SLANG_VARIANT, /* the default */ + SLANG_INVARIANT /* indicates the "invariant" keyword */ +} slang_type_variant; + + +typedef enum slang_type_centroid_ +{ + SLANG_CENTER, /* the default */ + SLANG_CENTROID /* indicates the "centroid" keyword */ +} slang_type_centroid; + + +typedef enum slang_type_qualifier_ +{ + SLANG_QUAL_NONE, + SLANG_QUAL_CONST, + SLANG_QUAL_ATTRIBUTE, + SLANG_QUAL_VARYING, + SLANG_QUAL_UNIFORM, + SLANG_QUAL_OUT, + SLANG_QUAL_INOUT, + SLANG_QUAL_FIXEDOUTPUT, /* internal */ + SLANG_QUAL_FIXEDINPUT /* internal */ +} slang_type_qualifier; + + +typedef enum slang_type_precision_ +{ + SLANG_PREC_DEFAULT, + SLANG_PREC_LOW, + SLANG_PREC_MEDIUM, + SLANG_PREC_HIGH +} slang_type_precision; + + +/** + * The basic shading language types (float, vec4, mat3, etc) + */ +typedef enum slang_type_specifier_type_ +{ + SLANG_SPEC_VOID, + SLANG_SPEC_BOOL, + SLANG_SPEC_BVEC2, + SLANG_SPEC_BVEC3, + SLANG_SPEC_BVEC4, + SLANG_SPEC_INT, + SLANG_SPEC_IVEC2, + SLANG_SPEC_IVEC3, + SLANG_SPEC_IVEC4, + SLANG_SPEC_FLOAT, + SLANG_SPEC_VEC2, + SLANG_SPEC_VEC3, + SLANG_SPEC_VEC4, + SLANG_SPEC_MAT2, + SLANG_SPEC_MAT3, + SLANG_SPEC_MAT4, + SLANG_SPEC_MAT23, + SLANG_SPEC_MAT32, + SLANG_SPEC_MAT24, + SLANG_SPEC_MAT42, + SLANG_SPEC_MAT34, + SLANG_SPEC_MAT43, + SLANG_SPEC_SAMPLER1D, + SLANG_SPEC_SAMPLER2D, + SLANG_SPEC_SAMPLER3D, + SLANG_SPEC_SAMPLERCUBE, + SLANG_SPEC_SAMPLER2DRECT, + SLANG_SPEC_SAMPLER1DSHADOW, + SLANG_SPEC_SAMPLER2DSHADOW, + SLANG_SPEC_SAMPLER2DRECTSHADOW, + SLANG_SPEC_STRUCT, + SLANG_SPEC_ARRAY +} slang_type_specifier_type; + + +extern slang_type_specifier_type +slang_type_specifier_type_from_string(const char *); + +extern const char * +slang_type_specifier_type_to_string(slang_type_specifier_type); + + +/** + * Describes more sophisticated types, like structs and arrays. + */ +typedef struct slang_type_specifier_ +{ + slang_type_specifier_type type; + struct slang_struct_ *_struct; /**< if type == SLANG_SPEC_STRUCT */ + struct slang_type_specifier_ *_array; /**< if type == SLANG_SPEC_ARRAY */ +} slang_type_specifier; + + +extern GLvoid +slang_type_specifier_ctr(slang_type_specifier *); + +extern GLvoid +slang_type_specifier_dtr(slang_type_specifier *); + +extern slang_type_specifier * +slang_type_specifier_new(slang_type_specifier_type type, + struct slang_struct_ *_struct, + struct slang_type_specifier_ *_array); + + +extern GLboolean +slang_type_specifier_copy(slang_type_specifier *, const slang_type_specifier *); + +extern GLboolean +slang_type_specifier_equal(const slang_type_specifier *, + const slang_type_specifier *); + + +extern GLboolean +slang_type_specifier_compatible(const slang_type_specifier * x, + const slang_type_specifier * y); + + +typedef struct slang_fully_specified_type_ +{ + slang_type_qualifier qualifier; + slang_type_specifier specifier; + slang_type_precision precision; + slang_type_variant variant; + slang_type_centroid centroid; + GLint array_len; /**< -1 if not an array type */ +} slang_fully_specified_type; + +extern int +slang_fully_specified_type_construct(slang_fully_specified_type *); + +extern void +slang_fully_specified_type_destruct(slang_fully_specified_type *); + +extern int +slang_fully_specified_type_copy(slang_fully_specified_type *, + const slang_fully_specified_type *); + + + +typedef struct slang_typeinfo_ +{ + GLboolean can_be_referenced; + GLboolean is_swizzled; + slang_swizzle swz; + slang_type_specifier spec; + GLuint array_len; +} slang_typeinfo; + +extern GLboolean +slang_typeinfo_construct(slang_typeinfo *); + +extern GLvoid +slang_typeinfo_destruct(slang_typeinfo *); + + +extern GLboolean +_slang_typeof_operation(struct slang_operation_ *, + const struct slang_name_space_ *, + slang_typeinfo *, slang_atom_pool *, + slang_info_log *log); + +extern GLboolean +_slang_type_is_matrix(slang_type_specifier_type); + +extern GLboolean +_slang_type_is_vector(slang_type_specifier_type); + +extern GLboolean +_slang_type_is_float_vec_mat(slang_type_specifier_type); + +extern slang_type_specifier_type +_slang_type_base(slang_type_specifier_type); + +extern GLuint +_slang_type_dim(slang_type_specifier_type); + +extern GLenum +_slang_gltype_from_specifier(const slang_type_specifier *type); + +#endif diff --git a/mesalib/src/mesa/shader/slang/slang_utility.c b/mesalib/src/mesa/shader/slang/slang_utility.c new file mode 100644 index 000000000..3631e32b3 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_utility.c @@ -0,0 +1,228 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.3 + * + * Copyright (C) 2005-2007 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file slang_utility.c + * slang utilities + * \author Michal Krol + */ + +#include "main/imports.h" +#include "slang_utility.h" +#include "slang_mem.h" + +char * +slang_string_concat (char *dst, const char *src) +{ + return _mesa_strcpy (dst + _mesa_strlen (dst), src); +} + + +/* slang_string */ + +GLvoid +slang_string_init (slang_string *self) +{ + self->data = NULL; + self->capacity = 0; + self->length = 0; + self->fail = GL_FALSE; +} + +GLvoid +slang_string_free (slang_string *self) +{ + if (self->data != NULL) + _mesa_free (self->data); +} + +GLvoid +slang_string_reset (slang_string *self) +{ + self->length = 0; + self->fail = GL_FALSE; +} + +static GLboolean +grow (slang_string *self, GLuint size) +{ + if (self->fail) + return GL_FALSE; + if (size > self->capacity) { + /* do not overflow 32-bit range */ + assert (size < 0x80000000); + + self->data = (char *) (_mesa_realloc (self->data, self->capacity, size * 2)); + self->capacity = size * 2; + if (self->data == NULL) { + self->capacity = 0; + self->fail = GL_TRUE; + return GL_FALSE; + } + } + return GL_TRUE; +} + +GLvoid +slang_string_push (slang_string *self, const slang_string *str) +{ + if (str->fail) { + self->fail = GL_TRUE; + return; + } + if (grow (self, self->length + str->length)) { + _mesa_memcpy (&self->data[self->length], str->data, str->length); + self->length += str->length; + } +} + +GLvoid +slang_string_pushc (slang_string *self, const char c) +{ + if (grow (self, self->length + 1)) { + self->data[self->length] = c; + self->length++; + } +} + +GLvoid +slang_string_pushs (slang_string *self, const char *cstr, GLuint len) +{ + if (grow (self, self->length + len)) { + _mesa_memcpy (&self->data[self->length], cstr, len); + self->length += len; + } +} + +GLvoid +slang_string_pushi (slang_string *self, GLint i) +{ + char buffer[12]; + + _mesa_sprintf (buffer, "%d", i); + slang_string_pushs (self, buffer, strlen (buffer)); +} + +const char * +slang_string_cstr (slang_string *self) +{ + if (grow (self, self->length + 1)) + self->data[self->length] = '\0'; + return self->data; +} + +/* slang_atom_pool */ + +void +slang_atom_pool_construct(slang_atom_pool * pool) +{ + GLuint i; + + for (i = 0; i < SLANG_ATOM_POOL_SIZE; i++) + pool->entries[i] = NULL; +} + +void +slang_atom_pool_destruct (slang_atom_pool * pool) +{ + GLuint i; + + for (i = 0; i < SLANG_ATOM_POOL_SIZE; i++) { + slang_atom_entry * entry; + + entry = pool->entries[i]; + while (entry != NULL) { + slang_atom_entry *next = entry->next; + _slang_free(entry->id); + _slang_free(entry); + entry = next; + } + } +} + +/* + * Search the atom pool for an atom with a given name. + * If atom is not found, create and add it to the pool. + * Returns ATOM_NULL if the atom was not found and the function failed + * to create a new atom. + */ +slang_atom +slang_atom_pool_atom(slang_atom_pool * pool, const char * id) +{ + GLuint hash; + const char * p = id; + slang_atom_entry ** entry; + + /* Hash a given string to a number in the range [0, ATOM_POOL_SIZE). */ + hash = 0; + while (*p != '\0') { + GLuint g; + + hash = (hash << 4) + (GLuint) (*p++); + g = hash & 0xf0000000; + if (g != 0) + hash ^= g >> 24; + hash &= ~g; + } + hash %= SLANG_ATOM_POOL_SIZE; + + /* Now the hash points to a linked list of atoms with names that + * have the same hash value. Search the linked list for a given + * name. + */ + entry = &pool->entries[hash]; + while (*entry != NULL) { + /* If the same, return the associated atom. */ + if (slang_string_compare((**entry).id, id) == 0) + return (slang_atom) (**entry).id; + /* Grab the next atom in the linked list. */ + entry = &(**entry).next; + } + + /* Okay, we have not found an atom. Create a new entry for it. + * Note that the <entry> points to the last entry's <next> field. + */ + *entry = (slang_atom_entry *) _slang_alloc(sizeof(slang_atom_entry)); + if (*entry == NULL) + return SLANG_ATOM_NULL; + + /* Initialize a new entry. Because we'll need the actual name of + * the atom, we use the pointer to this string as an actual atom's + * value. + */ + (**entry).next = NULL; + (**entry).id = _slang_strdup(id); + if ((**entry).id == NULL) + return SLANG_ATOM_NULL; + return (slang_atom) (**entry).id; +} + +/** + * Return the name of a given atom. + */ +const char * +slang_atom_pool_id(slang_atom_pool * pool, slang_atom atom) +{ + return (const char *) (atom); +} diff --git a/mesalib/src/mesa/shader/slang/slang_utility.h b/mesalib/src/mesa/shader/slang/slang_utility.h new file mode 100644 index 000000000..032c56181 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_utility.h @@ -0,0 +1,100 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.3 + * + * Copyright (C) 2005-2007 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef SLANG_UTILITY_H +#define SLANG_UTILITY_H + + +/* Compile-time assertions. If the expression is zero, try to declare an + * array of size [-1] to cause compilation error. + */ +#define static_assert(expr) do { int _array[(expr) ? 1 : -1]; (void) _array[0]; } while (0) + + +#define slang_string_compare(str1, str2) _mesa_strcmp (str1, str2) +#define slang_string_copy(dst, src) _mesa_strcpy (dst, src) +#define slang_string_length(str) _mesa_strlen (str) + +char *slang_string_concat (char *, const char *); + +/* slang_string */ + +typedef struct +{ + char *data; + GLuint length; + GLuint capacity; + GLboolean fail; +} slang_string; + +GLvoid +slang_string_init (slang_string *); + +GLvoid +slang_string_free (slang_string *); + +GLvoid +slang_string_reset (slang_string *); + +GLvoid +slang_string_push (slang_string *, const slang_string *); + +GLvoid +slang_string_pushc (slang_string *, const char); + +GLvoid +slang_string_pushs (slang_string *, const char *, GLuint); + +GLvoid +slang_string_pushi (slang_string *, GLint); + +const char * +slang_string_cstr (slang_string *); + +/* slang_atom */ + +typedef GLvoid *slang_atom; + +#define SLANG_ATOM_NULL ((slang_atom) 0) + +typedef struct slang_atom_entry_ +{ + char *id; + struct slang_atom_entry_ *next; +} slang_atom_entry; + +#define SLANG_ATOM_POOL_SIZE 1023 + +typedef struct slang_atom_pool_ +{ + slang_atom_entry *entries[SLANG_ATOM_POOL_SIZE]; +} slang_atom_pool; + +GLvoid slang_atom_pool_construct (slang_atom_pool *); +GLvoid slang_atom_pool_destruct (slang_atom_pool *); +slang_atom slang_atom_pool_atom (slang_atom_pool *, const char *); +const char *slang_atom_pool_id (slang_atom_pool *, slang_atom); + + +#endif diff --git a/mesalib/src/mesa/shader/slang/slang_vartable.c b/mesalib/src/mesa/shader/slang/slang_vartable.c new file mode 100644 index 000000000..a4ebacc09 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_vartable.c @@ -0,0 +1,362 @@ + +#include "main/imports.h" +#include "shader/program.h" +#include "shader/prog_print.h" +#include "slang_compile.h" +#include "slang_compile_variable.h" +#include "slang_emit.h" +#include "slang_mem.h" +#include "slang_vartable.h" +#include "slang_ir.h" + + +static int dbg = 0; + + +typedef enum { + FREE, + VAR, + TEMP +} TempState; + + +/** + * Variable/register info for one variable scope. + */ +struct table +{ + int Level; + int NumVars; + slang_variable **Vars; /* array [NumVars] */ + + TempState Temps[MAX_PROGRAM_TEMPS * 4]; /* per-component state */ + int ValSize[MAX_PROGRAM_TEMPS * 4]; /**< For debug only */ + + struct table *Parent; /** Parent scope table */ +}; + + +/** + * A variable table is a stack of tables, one per scope. + */ +struct slang_var_table_ +{ + GLint CurLevel; + GLuint MaxRegisters; + struct table *Top; /**< Table at top of stack */ +}; + + + +slang_var_table * +_slang_new_var_table(GLuint maxRegisters) +{ + slang_var_table *vt + = (slang_var_table *) _slang_alloc(sizeof(slang_var_table)); + if (vt) { + vt->MaxRegisters = maxRegisters; + } + return vt; +} + + +void +_slang_delete_var_table(slang_var_table *vt) +{ + if (vt->Top) { + _mesa_problem(NULL, "non-empty var table in _slang_delete_var_table()"); + return; + } + _slang_free(vt); +} + + + +/** + * Create new table on top of vartable stack. + * Used when we enter a {} block. + */ +void +_slang_push_var_table(slang_var_table *vt) +{ + struct table *t = (struct table *) _slang_alloc(sizeof(struct table)); + if (t) { + t->Level = vt->CurLevel++; + t->Parent = vt->Top; + if (t->Parent) { + /* copy the info indicating which temp regs are in use */ + memcpy(t->Temps, t->Parent->Temps, sizeof(t->Temps)); + memcpy(t->ValSize, t->Parent->ValSize, sizeof(t->ValSize)); + } + vt->Top = t; + if (dbg) printf("Pushing level %d\n", t->Level); + } +} + + +/** + * Pop top entry from variable table. + * Used when we leave a {} block. + */ +void +_slang_pop_var_table(slang_var_table *vt) +{ + struct table *t = vt->Top; + int i; + + if (dbg) printf("Popping level %d\n", t->Level); + + /* free the storage allocated for each variable */ + for (i = 0; i < t->NumVars; i++) { + slang_ir_storage *store = t->Vars[i]->store; + GLint j; + GLuint comp; + if (dbg) printf(" Free var %s, size %d at %d.%s\n", + (char*) t->Vars[i]->a_name, store->Size, + store->Index, + _mesa_swizzle_string(store->Swizzle, 0, 0)); + + if (store->File == PROGRAM_SAMPLER) { + /* samplers have no storage */ + continue; + } + + if (store->Size == 1) + comp = GET_SWZ(store->Swizzle, 0); + else + comp = 0; + + /* store->Index may be -1 if we run out of registers */ + if (store->Index >= 0) { + for (j = 0; j < store->Size; j++) { + assert(t->Temps[store->Index * 4 + j + comp] == VAR); + t->Temps[store->Index * 4 + j + comp] = FREE; + } + } + store->Index = -1; + } + if (t->Parent) { + /* just verify that any remaining allocations in this scope + * were for temps + */ + for (i = 0; i < (int) vt->MaxRegisters * 4; i++) { + if (t->Temps[i] != FREE && t->Parent->Temps[i] == FREE) { + if (dbg) printf(" Free reg %d\n", i/4); + assert(t->Temps[i] == TEMP); + } + } + } + + if (t->Vars) { + _slang_free(t->Vars); + t->Vars = NULL; + } + + vt->Top = t->Parent; + _slang_free(t); + vt->CurLevel--; +} + + +/** + * Add a new variable to the given var/symbol table. + */ +void +_slang_add_variable(slang_var_table *vt, slang_variable *v) +{ + struct table *t; + assert(vt); + t = vt->Top; + assert(t); + if (dbg) printf("Adding var %s, store %p\n", (char *) v->a_name, (void *) v->store); + t->Vars = (slang_variable **) + _slang_realloc(t->Vars, + t->NumVars * sizeof(slang_variable *), + (t->NumVars + 1) * sizeof(slang_variable *)); + t->Vars[t->NumVars] = v; + t->NumVars++; +} + + +/** + * Look for variable by name in given table. + * If not found, Parent table will be searched. + */ +slang_variable * +_slang_find_variable(const slang_var_table *vt, slang_atom name) +{ + struct table *t = vt->Top; + while (1) { + int i; + for (i = 0; i < t->NumVars; i++) { + if (t->Vars[i]->a_name == name) + return t->Vars[i]; + } + if (t->Parent) + t = t->Parent; + else + return NULL; + } +} + + +/** + * Allocation helper. + * \param size var size in floats + * \return position for var, measured in floats + */ +static GLint +alloc_reg(slang_var_table *vt, GLint size, GLboolean isTemp) +{ + struct table *t = vt->Top; + /* if size == 1, allocate anywhere, else, pos must be multiple of 4 */ + const GLuint step = (size == 1) ? 1 : 4; + GLuint i, j; + assert(size > 0); /* number of floats */ + + for (i = 0; i <= vt->MaxRegisters * 4 - size; i += step) { + GLuint found = 0; + for (j = 0; j < (GLuint) size; j++) { + assert(i + j < 4 * MAX_PROGRAM_TEMPS); + if (i + j < vt->MaxRegisters * 4 && t->Temps[i + j] == FREE) { + found++; + } + else { + break; + } + } + if (found == size) { + /* found block of size free regs */ + if (size > 1) + assert(i % 4 == 0); + for (j = 0; j < (GLuint) size; j++) { + assert(i + j < 4 * MAX_PROGRAM_TEMPS); + t->Temps[i + j] = isTemp ? TEMP : VAR; + } + assert(i < MAX_PROGRAM_TEMPS * 4); + t->ValSize[i] = size; + return i; + } + } + + /* if we get here, we ran out of registers */ + return -1; +} + + +/** + * Allocate temp register(s) for storing a variable. + * \param size size needed, in floats + * \param swizzle returns swizzle mask for accessing var in register + * \return register allocated, or -1 + */ +GLboolean +_slang_alloc_var(slang_var_table *vt, slang_ir_storage *store) +{ + struct table *t = vt->Top; + int i; + + if (store->File == PROGRAM_SAMPLER) { + /* don't really allocate storage */ + store->Index = 0; + return GL_TRUE; + } + + i = alloc_reg(vt, store->Size, GL_FALSE); + if (i < 0) + return GL_FALSE; + + store->Index = i / 4; + store->Swizzle = _slang_var_swizzle(store->Size, i % 4); + + if (dbg) + printf("Alloc var storage sz %d at %d.%s (level %d) store %p\n", + store->Size, store->Index, + _mesa_swizzle_string(store->Swizzle, 0, 0), + t->Level, + (void*) store); + + return GL_TRUE; +} + + + +/** + * Allocate temp register(s) for storing an unnamed intermediate value. + */ +GLboolean +_slang_alloc_temp(slang_var_table *vt, slang_ir_storage *store) +{ + struct table *t = vt->Top; + const int i = alloc_reg(vt, store->Size, GL_TRUE); + if (i < 0) + return GL_FALSE; + + assert(store->Index < 0); + + store->Index = i / 4; + store->Swizzle = _slang_var_swizzle(store->Size, i % 4); + + if (dbg) printf("Alloc temp sz %d at %d.%s (level %d) store %p\n", + store->Size, store->Index, + _mesa_swizzle_string(store->Swizzle, 0, 0), t->Level, + (void *) store); + + return GL_TRUE; +} + + +void +_slang_free_temp(slang_var_table *vt, slang_ir_storage *store) +{ + struct table *t = vt->Top; + GLuint i; + GLuint r = store->Index; + assert(store->Size > 0); + assert(r >= 0); + assert(r + store->Size <= vt->MaxRegisters * 4); + if (dbg) printf("Free temp sz %d at %d.%s (level %d) store %p\n", + store->Size, r, + _mesa_swizzle_string(store->Swizzle, 0, 0), + t->Level, (void *) store); + if (store->Size == 1) { + const GLuint comp = GET_SWZ(store->Swizzle, 0); + /* we can actually fail some of these assertions because of the + * troublesome IR_SWIZZLE handling. + */ +#if 0 + assert(store->Swizzle == MAKE_SWIZZLE4(comp, comp, comp, comp)); + assert(comp < 4); + assert(t->ValSize[r * 4 + comp] == 1); +#endif + assert(t->Temps[r * 4 + comp] == TEMP); + t->Temps[r * 4 + comp] = FREE; + } + else { + /*assert(store->Swizzle == SWIZZLE_NOOP);*/ + assert(t->ValSize[r*4] == store->Size); + for (i = 0; i < (GLuint) store->Size; i++) { + assert(t->Temps[r * 4 + i] == TEMP); + t->Temps[r * 4 + i] = FREE; + } + } +} + + +GLboolean +_slang_is_temp(const slang_var_table *vt, const slang_ir_storage *store) +{ + struct table *t = vt->Top; + GLuint comp; + assert(store->Index >= 0); + assert(store->Index < (int) vt->MaxRegisters); + if (store->Swizzle == SWIZZLE_NOOP) + comp = 0; + else + comp = GET_SWZ(store->Swizzle, 0); + + if (t->Temps[store->Index * 4 + comp] == TEMP) + return GL_TRUE; + else + return GL_FALSE; +} diff --git a/mesalib/src/mesa/shader/slang/slang_vartable.h b/mesalib/src/mesa/shader/slang/slang_vartable.h new file mode 100644 index 000000000..94bcd63f4 --- /dev/null +++ b/mesalib/src/mesa/shader/slang/slang_vartable.h @@ -0,0 +1,42 @@ + +#ifndef SLANG_VARTABLE_H +#define SLANG_VARTABLE_H + +struct slang_ir_storage_; + +typedef struct slang_var_table_ slang_var_table; + +struct slang_variable_; + +extern slang_var_table * +_slang_new_var_table(GLuint maxRegisters); + +extern void +_slang_delete_var_table(slang_var_table *vt); + +extern void +_slang_push_var_table(slang_var_table *parent); + +extern void +_slang_pop_var_table(slang_var_table *t); + +extern void +_slang_add_variable(slang_var_table *t, struct slang_variable_ *v); + +extern struct slang_variable_ * +_slang_find_variable(const slang_var_table *t, slang_atom name); + +extern GLboolean +_slang_alloc_var(slang_var_table *t, struct slang_ir_storage_ *store); + +extern GLboolean +_slang_alloc_temp(slang_var_table *t, struct slang_ir_storage_ *store); + +extern void +_slang_free_temp(slang_var_table *t, struct slang_ir_storage_ *store); + +extern GLboolean +_slang_is_temp(const slang_var_table *t, const struct slang_ir_storage_ *store); + + +#endif /* SLANG_VARTABLE_H */ |