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Diffstat (limited to 'mesalib/src/mesa/shader/slang/slang_simplify.c')
-rw-r--r--mesalib/src/mesa/shader/slang/slang_simplify.c527
1 files changed, 0 insertions, 527 deletions
diff --git a/mesalib/src/mesa/shader/slang/slang_simplify.c b/mesalib/src/mesa/shader/slang/slang_simplify.c
deleted file mode 100644
index 13b9ca3c8..000000000
--- a/mesalib/src/mesa/shader/slang/slang_simplify.c
+++ /dev/null
@@ -1,527 +0,0 @@
-/*
- * 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 values[16];
- values[0] = -1;
- _mesa_GetIntegerv(info[i].Token, values);
- ASSERT(values[0] >= 0); /* sanity check that glGetFloatv worked */
- return values[0];
- }
- }
- 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,
- &paramVar->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(&paramVar->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(&paramVar->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;
-}