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-rw-r--r--mesalib/src/mesa/program/program_parse.y5536
1 files changed, 2768 insertions, 2768 deletions
diff --git a/mesalib/src/mesa/program/program_parse.y b/mesalib/src/mesa/program/program_parse.y
index a85977e2e..19aa8ccdb 100644
--- a/mesalib/src/mesa/program/program_parse.y
+++ b/mesalib/src/mesa/program/program_parse.y
@@ -1,2768 +1,2768 @@
-%{
-/*
- * Copyright © 2009 Intel Corporation
- *
- * 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 (including the next
- * paragraph) 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
- * THE AUTHORS OR COPYRIGHT HOLDERS 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 <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "main/mtypes.h"
-#include "main/imports.h"
-#include "program/program.h"
-#include "program/prog_parameter.h"
-#include "program/prog_parameter_layout.h"
-#include "program/prog_statevars.h"
-#include "program/prog_instruction.h"
-
-#include "program/symbol_table.h"
-#include "program/program_parser.h"
-
-extern void *yy_scan_string(char *);
-extern void yy_delete_buffer(void *);
-
-static struct asm_symbol *declare_variable(struct asm_parser_state *state,
- char *name, enum asm_type t, struct YYLTYPE *locp);
-
-static int add_state_reference(struct gl_program_parameter_list *param_list,
- const gl_state_index tokens[STATE_LENGTH]);
-
-static int initialize_symbol_from_state(struct gl_program *prog,
- struct asm_symbol *param_var, const gl_state_index tokens[STATE_LENGTH]);
-
-static int initialize_symbol_from_param(struct gl_program *prog,
- struct asm_symbol *param_var, const gl_state_index tokens[STATE_LENGTH]);
-
-static int initialize_symbol_from_const(struct gl_program *prog,
- struct asm_symbol *param_var, const struct asm_vector *vec,
- GLboolean allowSwizzle);
-
-static int yyparse(struct asm_parser_state *state);
-
-static char *make_error_string(const char *fmt, ...);
-
-static void yyerror(struct YYLTYPE *locp, struct asm_parser_state *state,
- const char *s);
-
-static int validate_inputs(struct YYLTYPE *locp,
- struct asm_parser_state *state);
-
-static void init_dst_reg(struct prog_dst_register *r);
-
-static void set_dst_reg(struct prog_dst_register *r,
- gl_register_file file, GLint index);
-
-static void init_src_reg(struct asm_src_register *r);
-
-static void set_src_reg(struct asm_src_register *r,
- gl_register_file file, GLint index);
-
-static void set_src_reg_swz(struct asm_src_register *r,
- gl_register_file file, GLint index, GLuint swizzle);
-
-static void asm_instruction_set_operands(struct asm_instruction *inst,
- const struct prog_dst_register *dst, const struct asm_src_register *src0,
- const struct asm_src_register *src1, const struct asm_src_register *src2);
-
-static struct asm_instruction *asm_instruction_ctor(gl_inst_opcode op,
- const struct prog_dst_register *dst, const struct asm_src_register *src0,
- const struct asm_src_register *src1, const struct asm_src_register *src2);
-
-static struct asm_instruction *asm_instruction_copy_ctor(
- const struct prog_instruction *base, const struct prog_dst_register *dst,
- const struct asm_src_register *src0, const struct asm_src_register *src1,
- const struct asm_src_register *src2);
-
-#ifndef FALSE
-#define FALSE 0
-#define TRUE (!FALSE)
-#endif
-
-#define YYLLOC_DEFAULT(Current, Rhs, N) \
- do { \
- if (YYID(N)) { \
- (Current).first_line = YYRHSLOC(Rhs, 1).first_line; \
- (Current).first_column = YYRHSLOC(Rhs, 1).first_column; \
- (Current).position = YYRHSLOC(Rhs, 1).position; \
- (Current).last_line = YYRHSLOC(Rhs, N).last_line; \
- (Current).last_column = YYRHSLOC(Rhs, N).last_column; \
- } else { \
- (Current).first_line = YYRHSLOC(Rhs, 0).last_line; \
- (Current).last_line = (Current).first_line; \
- (Current).first_column = YYRHSLOC(Rhs, 0).last_column; \
- (Current).last_column = (Current).first_column; \
- (Current).position = YYRHSLOC(Rhs, 0).position \
- + (Current).first_column; \
- } \
- } while(YYID(0))
-
-#define YYLEX_PARAM state->scanner
-%}
-
-%pure-parser
-%locations
-%parse-param { struct asm_parser_state *state }
-%error-verbose
-%lex-param { void *scanner }
-
-%union {
- struct asm_instruction *inst;
- struct asm_symbol *sym;
- struct asm_symbol temp_sym;
- struct asm_swizzle_mask swiz_mask;
- struct asm_src_register src_reg;
- struct prog_dst_register dst_reg;
- struct prog_instruction temp_inst;
- char *string;
- unsigned result;
- unsigned attrib;
- int integer;
- float real;
- gl_state_index state[STATE_LENGTH];
- int negate;
- struct asm_vector vector;
- gl_inst_opcode opcode;
-
- struct {
- unsigned swz;
- unsigned rgba_valid:1;
- unsigned xyzw_valid:1;
- unsigned negate:1;
- } ext_swizzle;
-}
-
-%token ARBvp_10 ARBfp_10
-
-/* Tokens for assembler pseudo-ops */
-%token <integer> ADDRESS
-%token ALIAS ATTRIB
-%token OPTION OUTPUT
-%token PARAM
-%token <integer> TEMP
-%token END
-
- /* Tokens for instructions */
-%token <temp_inst> BIN_OP BINSC_OP SAMPLE_OP SCALAR_OP TRI_OP VECTOR_OP
-%token <temp_inst> ARL KIL SWZ TXD_OP
-
-%token <integer> INTEGER
-%token <real> REAL
-
-%token AMBIENT ATTENUATION
-%token BACK
-%token CLIP COLOR
-%token DEPTH DIFFUSE DIRECTION
-%token EMISSION ENV EYE
-%token FOG FOGCOORD FRAGMENT FRONT
-%token HALF
-%token INVERSE INVTRANS
-%token LIGHT LIGHTMODEL LIGHTPROD LOCAL
-%token MATERIAL MAT_PROGRAM MATRIX MATRIXINDEX MODELVIEW MVP
-%token NORMAL
-%token OBJECT
-%token PALETTE PARAMS PLANE POINT_TOK POINTSIZE POSITION PRIMARY PROGRAM PROJECTION
-%token RANGE RESULT ROW
-%token SCENECOLOR SECONDARY SHININESS SIZE_TOK SPECULAR SPOT STATE
-%token TEXCOORD TEXENV TEXGEN TEXGEN_Q TEXGEN_R TEXGEN_S TEXGEN_T TEXTURE TRANSPOSE
-%token TEXTURE_UNIT TEX_1D TEX_2D TEX_3D TEX_CUBE TEX_RECT
-%token TEX_SHADOW1D TEX_SHADOW2D TEX_SHADOWRECT
-%token TEX_ARRAY1D TEX_ARRAY2D TEX_ARRAYSHADOW1D TEX_ARRAYSHADOW2D
-%token VERTEX VTXATTRIB
-%token WEIGHT
-
-%token <string> IDENTIFIER USED_IDENTIFIER
-%type <string> string
-%token <swiz_mask> MASK4 MASK3 MASK2 MASK1 SWIZZLE
-%token DOT_DOT
-%token DOT
-
-%type <inst> instruction ALU_instruction TexInstruction
-%type <inst> ARL_instruction VECTORop_instruction
-%type <inst> SCALARop_instruction BINSCop_instruction BINop_instruction
-%type <inst> TRIop_instruction TXD_instruction SWZ_instruction SAMPLE_instruction
-%type <inst> KIL_instruction
-
-%type <dst_reg> dstReg maskedDstReg maskedAddrReg
-%type <src_reg> srcReg scalarUse scalarSrcReg swizzleSrcReg
-%type <swiz_mask> scalarSuffix swizzleSuffix extendedSwizzle
-%type <ext_swizzle> extSwizComp extSwizSel
-%type <swiz_mask> optionalMask
-
-%type <sym> progParamArray
-%type <integer> addrRegRelOffset addrRegPosOffset addrRegNegOffset
-%type <src_reg> progParamArrayMem progParamArrayAbs progParamArrayRel
-%type <sym> addrReg
-%type <swiz_mask> addrComponent addrWriteMask
-
-%type <dst_reg> ccMaskRule ccTest ccMaskRule2 ccTest2 optionalCcMask
-
-%type <result> resultBinding resultColBinding
-%type <integer> optFaceType optColorType
-%type <integer> optResultFaceType optResultColorType
-
-%type <integer> optTexImageUnitNum texImageUnitNum
-%type <integer> optTexCoordUnitNum texCoordUnitNum
-%type <integer> optLegacyTexUnitNum legacyTexUnitNum
-%type <integer> texImageUnit texTarget
-%type <integer> vtxAttribNum
-
-%type <attrib> attribBinding vtxAttribItem fragAttribItem
-
-%type <temp_sym> paramSingleInit paramSingleItemDecl
-%type <integer> optArraySize
-
-%type <state> stateSingleItem stateMultipleItem
-%type <state> stateMaterialItem
-%type <state> stateLightItem stateLightModelItem stateLightProdItem
-%type <state> stateTexGenItem stateFogItem stateClipPlaneItem statePointItem
-%type <state> stateMatrixItem stateMatrixRow stateMatrixRows
-%type <state> stateTexEnvItem stateDepthItem
-
-%type <state> stateLModProperty
-%type <state> stateMatrixName optMatrixRows
-
-%type <integer> stateMatProperty
-%type <integer> stateLightProperty stateSpotProperty
-%type <integer> stateLightNumber stateLProdProperty
-%type <integer> stateTexGenType stateTexGenCoord
-%type <integer> stateTexEnvProperty
-%type <integer> stateFogProperty
-%type <integer> stateClipPlaneNum
-%type <integer> statePointProperty
-
-%type <integer> stateOptMatModifier stateMatModifier stateMatrixRowNum
-%type <integer> stateOptModMatNum stateModMatNum statePaletteMatNum
-%type <integer> stateProgramMatNum
-
-%type <integer> ambDiffSpecProperty
-
-%type <state> programSingleItem progEnvParam progLocalParam
-%type <state> programMultipleItem progEnvParams progLocalParams
-
-%type <temp_sym> paramMultipleInit paramMultInitList paramMultipleItem
-%type <temp_sym> paramSingleItemUse
-
-%type <integer> progEnvParamNum progLocalParamNum
-%type <state> progEnvParamNums progLocalParamNums
-
-%type <vector> paramConstDecl paramConstUse
-%type <vector> paramConstScalarDecl paramConstScalarUse paramConstVector
-%type <real> signedFloatConstant
-%type <negate> optionalSign
-
-%{
-extern int yylex(YYSTYPE *yylval_param, YYLTYPE *yylloc_param,
- void *yyscanner);
-%}
-
-%%
-
-program: language optionSequence statementSequence END
- ;
-
-language: ARBvp_10
- {
- if (state->prog->Target != GL_VERTEX_PROGRAM_ARB) {
- yyerror(& @1, state, "invalid fragment program header");
-
- }
- state->mode = ARB_vertex;
- }
- | ARBfp_10
- {
- if (state->prog->Target != GL_FRAGMENT_PROGRAM_ARB) {
- yyerror(& @1, state, "invalid vertex program header");
- }
- state->mode = ARB_fragment;
-
- state->option.TexRect =
- (state->ctx->Extensions.NV_texture_rectangle != GL_FALSE);
- }
- ;
-
-optionSequence: optionSequence option
- |
- ;
-
-option: OPTION string ';'
- {
- int valid = 0;
-
- if (state->mode == ARB_vertex) {
- valid = _mesa_ARBvp_parse_option(state, $2);
- } else if (state->mode == ARB_fragment) {
- valid = _mesa_ARBfp_parse_option(state, $2);
- }
-
-
- free($2);
-
- if (!valid) {
- const char *const err_str = (state->mode == ARB_vertex)
- ? "invalid ARB vertex program option"
- : "invalid ARB fragment program option";
-
- yyerror(& @2, state, err_str);
- YYERROR;
- }
- }
- ;
-
-statementSequence: statementSequence statement
- |
- ;
-
-statement: instruction ';'
- {
- if ($1 != NULL) {
- if (state->inst_tail == NULL) {
- state->inst_head = $1;
- } else {
- state->inst_tail->next = $1;
- }
-
- state->inst_tail = $1;
- $1->next = NULL;
-
- state->prog->NumInstructions++;
- }
- }
- | namingStatement ';'
- ;
-
-instruction: ALU_instruction
- {
- $$ = $1;
- state->prog->NumAluInstructions++;
- }
- | TexInstruction
- {
- $$ = $1;
- state->prog->NumTexInstructions++;
- }
- ;
-
-ALU_instruction: ARL_instruction
- | VECTORop_instruction
- | SCALARop_instruction
- | BINSCop_instruction
- | BINop_instruction
- | TRIop_instruction
- | SWZ_instruction
- ;
-
-TexInstruction: SAMPLE_instruction
- | KIL_instruction
- | TXD_instruction
- ;
-
-ARL_instruction: ARL maskedAddrReg ',' scalarSrcReg
- {
- $$ = asm_instruction_ctor(OPCODE_ARL, & $2, & $4, NULL, NULL);
- }
- ;
-
-VECTORop_instruction: VECTOR_OP maskedDstReg ',' swizzleSrcReg
- {
- $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL);
- }
- ;
-
-SCALARop_instruction: SCALAR_OP maskedDstReg ',' scalarSrcReg
- {
- $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL);
- }
- ;
-
-BINSCop_instruction: BINSC_OP maskedDstReg ',' scalarSrcReg ',' scalarSrcReg
- {
- $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, NULL);
- }
- ;
-
-
-BINop_instruction: BIN_OP maskedDstReg ',' swizzleSrcReg ',' swizzleSrcReg
- {
- $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, NULL);
- }
- ;
-
-TRIop_instruction: TRI_OP maskedDstReg ','
- swizzleSrcReg ',' swizzleSrcReg ',' swizzleSrcReg
- {
- $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, & $8);
- }
- ;
-
-SAMPLE_instruction: SAMPLE_OP maskedDstReg ',' swizzleSrcReg ',' texImageUnit ',' texTarget
- {
- $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL);
- if ($$ != NULL) {
- const GLbitfield tex_mask = (1U << $6);
- GLbitfield shadow_tex = 0;
- GLbitfield target_mask = 0;
-
-
- $$->Base.TexSrcUnit = $6;
-
- if ($8 < 0) {
- shadow_tex = tex_mask;
-
- $$->Base.TexSrcTarget = -$8;
- $$->Base.TexShadow = 1;
- } else {
- $$->Base.TexSrcTarget = $8;
- }
-
- target_mask = (1U << $$->Base.TexSrcTarget);
-
- /* If this texture unit was previously accessed and that access
- * had a different texture target, generate an error.
- *
- * If this texture unit was previously accessed and that access
- * had a different shadow mode, generate an error.
- */
- if ((state->prog->TexturesUsed[$6] != 0)
- && ((state->prog->TexturesUsed[$6] != target_mask)
- || ((state->prog->ShadowSamplers & tex_mask)
- != shadow_tex))) {
- yyerror(& @8, state,
- "multiple targets used on one texture image unit");
- YYERROR;
- }
-
-
- state->prog->TexturesUsed[$6] |= target_mask;
- state->prog->ShadowSamplers |= shadow_tex;
- }
- }
- ;
-
-KIL_instruction: KIL swizzleSrcReg
- {
- $$ = asm_instruction_ctor(OPCODE_KIL, NULL, & $2, NULL, NULL);
- state->fragment.UsesKill = 1;
- }
- | KIL ccTest
- {
- $$ = asm_instruction_ctor(OPCODE_KIL_NV, NULL, NULL, NULL, NULL);
- $$->Base.DstReg.CondMask = $2.CondMask;
- $$->Base.DstReg.CondSwizzle = $2.CondSwizzle;
- $$->Base.DstReg.CondSrc = $2.CondSrc;
- state->fragment.UsesKill = 1;
- }
- ;
-
-TXD_instruction: TXD_OP maskedDstReg ',' swizzleSrcReg ',' swizzleSrcReg ',' swizzleSrcReg ',' texImageUnit ',' texTarget
- {
- $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, & $8);
- if ($$ != NULL) {
- const GLbitfield tex_mask = (1U << $10);
- GLbitfield shadow_tex = 0;
- GLbitfield target_mask = 0;
-
-
- $$->Base.TexSrcUnit = $10;
-
- if ($12 < 0) {
- shadow_tex = tex_mask;
-
- $$->Base.TexSrcTarget = -$12;
- $$->Base.TexShadow = 1;
- } else {
- $$->Base.TexSrcTarget = $12;
- }
-
- target_mask = (1U << $$->Base.TexSrcTarget);
-
- /* If this texture unit was previously accessed and that access
- * had a different texture target, generate an error.
- *
- * If this texture unit was previously accessed and that access
- * had a different shadow mode, generate an error.
- */
- if ((state->prog->TexturesUsed[$10] != 0)
- && ((state->prog->TexturesUsed[$10] != target_mask)
- || ((state->prog->ShadowSamplers & tex_mask)
- != shadow_tex))) {
- yyerror(& @12, state,
- "multiple targets used on one texture image unit");
- YYERROR;
- }
-
-
- state->prog->TexturesUsed[$10] |= target_mask;
- state->prog->ShadowSamplers |= shadow_tex;
- }
- }
- ;
-
-texImageUnit: TEXTURE_UNIT optTexImageUnitNum
- {
- $$ = $2;
- }
- ;
-
-texTarget: TEX_1D { $$ = TEXTURE_1D_INDEX; }
- | TEX_2D { $$ = TEXTURE_2D_INDEX; }
- | TEX_3D { $$ = TEXTURE_3D_INDEX; }
- | TEX_CUBE { $$ = TEXTURE_CUBE_INDEX; }
- | TEX_RECT { $$ = TEXTURE_RECT_INDEX; }
- | TEX_SHADOW1D { $$ = -TEXTURE_1D_INDEX; }
- | TEX_SHADOW2D { $$ = -TEXTURE_2D_INDEX; }
- | TEX_SHADOWRECT { $$ = -TEXTURE_RECT_INDEX; }
- | TEX_ARRAY1D { $$ = TEXTURE_1D_ARRAY_INDEX; }
- | TEX_ARRAY2D { $$ = TEXTURE_2D_ARRAY_INDEX; }
- | TEX_ARRAYSHADOW1D { $$ = -TEXTURE_1D_ARRAY_INDEX; }
- | TEX_ARRAYSHADOW2D { $$ = -TEXTURE_2D_ARRAY_INDEX; }
- ;
-
-SWZ_instruction: SWZ maskedDstReg ',' srcReg ',' extendedSwizzle
- {
- /* FIXME: Is this correct? Should the extenedSwizzle be applied
- * FIXME: to the existing swizzle?
- */
- $4.Base.Swizzle = $6.swizzle;
- $4.Base.Negate = $6.mask;
-
- $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL);
- }
- ;
-
-scalarSrcReg: optionalSign scalarUse
- {
- $$ = $2;
-
- if ($1) {
- $$.Base.Negate = ~$$.Base.Negate;
- }
- }
- | optionalSign '|' scalarUse '|'
- {
- $$ = $3;
-
- if (!state->option.NV_fragment) {
- yyerror(& @2, state, "unexpected character '|'");
- YYERROR;
- }
-
- if ($1) {
- $$.Base.Negate = ~$$.Base.Negate;
- }
-
- $$.Base.Abs = 1;
- }
- ;
-
-scalarUse: srcReg scalarSuffix
- {
- $$ = $1;
-
- $$.Base.Swizzle = _mesa_combine_swizzles($$.Base.Swizzle,
- $2.swizzle);
- }
- | paramConstScalarUse
- {
- struct asm_symbol temp_sym;
-
- if (!state->option.NV_fragment) {
- yyerror(& @1, state, "expected scalar suffix");
- YYERROR;
- }
-
- memset(& temp_sym, 0, sizeof(temp_sym));
- temp_sym.param_binding_begin = ~0;
- initialize_symbol_from_const(state->prog, & temp_sym, & $1, GL_TRUE);
-
- set_src_reg_swz(& $$, PROGRAM_CONSTANT,
- temp_sym.param_binding_begin,
- temp_sym.param_binding_swizzle);
- }
- ;
-
-swizzleSrcReg: optionalSign srcReg swizzleSuffix
- {
- $$ = $2;
-
- if ($1) {
- $$.Base.Negate = ~$$.Base.Negate;
- }
-
- $$.Base.Swizzle = _mesa_combine_swizzles($$.Base.Swizzle,
- $3.swizzle);
- }
- | optionalSign '|' srcReg swizzleSuffix '|'
- {
- $$ = $3;
-
- if (!state->option.NV_fragment) {
- yyerror(& @2, state, "unexpected character '|'");
- YYERROR;
- }
-
- if ($1) {
- $$.Base.Negate = ~$$.Base.Negate;
- }
-
- $$.Base.Abs = 1;
- $$.Base.Swizzle = _mesa_combine_swizzles($$.Base.Swizzle,
- $4.swizzle);
- }
-
- ;
-
-maskedDstReg: dstReg optionalMask optionalCcMask
- {
- $$ = $1;
- $$.WriteMask = $2.mask;
- $$.CondMask = $3.CondMask;
- $$.CondSwizzle = $3.CondSwizzle;
- $$.CondSrc = $3.CondSrc;
-
- if ($$.File == PROGRAM_OUTPUT) {
- /* Technically speaking, this should check that it is in
- * vertex program mode. However, PositionInvariant can never be
- * set in fragment program mode, so it is somewhat irrelevant.
- */
- if (state->option.PositionInvariant
- && ($$.Index == VERT_RESULT_HPOS)) {
- yyerror(& @1, state, "position-invariant programs cannot "
- "write position");
- YYERROR;
- }
-
- state->prog->OutputsWritten |= BITFIELD64_BIT($$.Index);
- }
- }
- ;
-
-maskedAddrReg: addrReg addrWriteMask
- {
- set_dst_reg(& $$, PROGRAM_ADDRESS, 0);
- $$.WriteMask = $2.mask;
- }
- ;
-
-extendedSwizzle: extSwizComp ',' extSwizComp ',' extSwizComp ',' extSwizComp
- {
- const unsigned xyzw_valid =
- ($1.xyzw_valid << 0)
- | ($3.xyzw_valid << 1)
- | ($5.xyzw_valid << 2)
- | ($7.xyzw_valid << 3);
- const unsigned rgba_valid =
- ($1.rgba_valid << 0)
- | ($3.rgba_valid << 1)
- | ($5.rgba_valid << 2)
- | ($7.rgba_valid << 3);
-
- /* All of the swizzle components have to be valid in either RGBA
- * or XYZW. Note that 0 and 1 are valid in both, so both masks
- * can have some bits set.
- *
- * We somewhat deviate from the spec here. It would be really hard
- * to figure out which component is the error, and there probably
- * isn't a lot of benefit.
- */
- if ((rgba_valid != 0x0f) && (xyzw_valid != 0x0f)) {
- yyerror(& @1, state, "cannot combine RGBA and XYZW swizzle "
- "components");
- YYERROR;
- }
-
- $$.swizzle = MAKE_SWIZZLE4($1.swz, $3.swz, $5.swz, $7.swz);
- $$.mask = ($1.negate) | ($3.negate << 1) | ($5.negate << 2)
- | ($7.negate << 3);
- }
- ;
-
-extSwizComp: optionalSign extSwizSel
- {
- $$ = $2;
- $$.negate = ($1) ? 1 : 0;
- }
- ;
-
-extSwizSel: INTEGER
- {
- if (($1 != 0) && ($1 != 1)) {
- yyerror(& @1, state, "invalid extended swizzle selector");
- YYERROR;
- }
-
- $$.swz = ($1 == 0) ? SWIZZLE_ZERO : SWIZZLE_ONE;
-
- /* 0 and 1 are valid for both RGBA swizzle names and XYZW
- * swizzle names.
- */
- $$.xyzw_valid = 1;
- $$.rgba_valid = 1;
- }
- | string
- {
- char s;
-
- if (strlen($1) > 1) {
- yyerror(& @1, state, "invalid extended swizzle selector");
- YYERROR;
- }
-
- s = $1[0];
- free($1);
-
- switch (s) {
- case 'x':
- $$.swz = SWIZZLE_X;
- $$.xyzw_valid = 1;
- break;
- case 'y':
- $$.swz = SWIZZLE_Y;
- $$.xyzw_valid = 1;
- break;
- case 'z':
- $$.swz = SWIZZLE_Z;
- $$.xyzw_valid = 1;
- break;
- case 'w':
- $$.swz = SWIZZLE_W;
- $$.xyzw_valid = 1;
- break;
-
- case 'r':
- $$.swz = SWIZZLE_X;
- $$.rgba_valid = 1;
- break;
- case 'g':
- $$.swz = SWIZZLE_Y;
- $$.rgba_valid = 1;
- break;
- case 'b':
- $$.swz = SWIZZLE_Z;
- $$.rgba_valid = 1;
- break;
- case 'a':
- $$.swz = SWIZZLE_W;
- $$.rgba_valid = 1;
- break;
-
- default:
- yyerror(& @1, state, "invalid extended swizzle selector");
- YYERROR;
- break;
- }
- }
- ;
-
-srcReg: USED_IDENTIFIER /* temporaryReg | progParamSingle */
- {
- struct asm_symbol *const s = (struct asm_symbol *)
- _mesa_symbol_table_find_symbol(state->st, 0, $1);
-
- free($1);
-
- if (s == NULL) {
- yyerror(& @1, state, "invalid operand variable");
- YYERROR;
- } else if ((s->type != at_param) && (s->type != at_temp)
- && (s->type != at_attrib)) {
- yyerror(& @1, state, "invalid operand variable");
- YYERROR;
- } else if ((s->type == at_param) && s->param_is_array) {
- yyerror(& @1, state, "non-array access to array PARAM");
- YYERROR;
- }
-
- init_src_reg(& $$);
- switch (s->type) {
- case at_temp:
- set_src_reg(& $$, PROGRAM_TEMPORARY, s->temp_binding);
- break;
- case at_param:
- set_src_reg_swz(& $$, s->param_binding_type,
- s->param_binding_begin,
- s->param_binding_swizzle);
- break;
- case at_attrib:
- set_src_reg(& $$, PROGRAM_INPUT, s->attrib_binding);
- state->prog->InputsRead |= (1U << $$.Base.Index);
-
- if (!validate_inputs(& @1, state)) {
- YYERROR;
- }
- break;
-
- default:
- YYERROR;
- break;
- }
- }
- | attribBinding
- {
- set_src_reg(& $$, PROGRAM_INPUT, $1);
- state->prog->InputsRead |= (1U << $$.Base.Index);
-
- if (!validate_inputs(& @1, state)) {
- YYERROR;
- }
- }
- | progParamArray '[' progParamArrayMem ']'
- {
- if (! $3.Base.RelAddr
- && ((unsigned) $3.Base.Index >= $1->param_binding_length)) {
- yyerror(& @3, state, "out of bounds array access");
- YYERROR;
- }
-
- init_src_reg(& $$);
- $$.Base.File = $1->param_binding_type;
-
- if ($3.Base.RelAddr) {
- state->prog->IndirectRegisterFiles |= (1 << $$.Base.File);
- $1->param_accessed_indirectly = 1;
-
- $$.Base.RelAddr = 1;
- $$.Base.Index = $3.Base.Index;
- $$.Symbol = $1;
- } else {
- $$.Base.Index = $1->param_binding_begin + $3.Base.Index;
- }
- }
- | paramSingleItemUse
- {
- gl_register_file file = ($1.name != NULL)
- ? $1.param_binding_type
- : PROGRAM_CONSTANT;
- set_src_reg_swz(& $$, file, $1.param_binding_begin,
- $1.param_binding_swizzle);
- }
- ;
-
-dstReg: resultBinding
- {
- set_dst_reg(& $$, PROGRAM_OUTPUT, $1);
- }
- | USED_IDENTIFIER /* temporaryReg | vertexResultReg */
- {
- struct asm_symbol *const s = (struct asm_symbol *)
- _mesa_symbol_table_find_symbol(state->st, 0, $1);
-
- free($1);
-
- if (s == NULL) {
- yyerror(& @1, state, "invalid operand variable");
- YYERROR;
- } else if ((s->type != at_output) && (s->type != at_temp)) {
- yyerror(& @1, state, "invalid operand variable");
- YYERROR;
- }
-
- switch (s->type) {
- case at_temp:
- set_dst_reg(& $$, PROGRAM_TEMPORARY, s->temp_binding);
- break;
- case at_output:
- set_dst_reg(& $$, PROGRAM_OUTPUT, s->output_binding);
- break;
- default:
- set_dst_reg(& $$, s->param_binding_type, s->param_binding_begin);
- break;
- }
- }
- ;
-
-progParamArray: USED_IDENTIFIER
- {
- struct asm_symbol *const s = (struct asm_symbol *)
- _mesa_symbol_table_find_symbol(state->st, 0, $1);
-
- free($1);
-
- if (s == NULL) {
- yyerror(& @1, state, "invalid operand variable");
- YYERROR;
- } else if ((s->type != at_param) || !s->param_is_array) {
- yyerror(& @1, state, "array access to non-PARAM variable");
- YYERROR;
- } else {
- $$ = s;
- }
- }
- ;
-
-progParamArrayMem: progParamArrayAbs | progParamArrayRel;
-
-progParamArrayAbs: INTEGER
- {
- init_src_reg(& $$);
- $$.Base.Index = $1;
- }
- ;
-
-progParamArrayRel: addrReg addrComponent addrRegRelOffset
- {
- /* FINISHME: Add support for multiple address registers.
- */
- /* FINISHME: Add support for 4-component address registers.
- */
- init_src_reg(& $$);
- $$.Base.RelAddr = 1;
- $$.Base.Index = $3;
- }
- ;
-
-addrRegRelOffset: { $$ = 0; }
- | '+' addrRegPosOffset { $$ = $2; }
- | '-' addrRegNegOffset { $$ = -$2; }
- ;
-
-addrRegPosOffset: INTEGER
- {
- if (($1 < 0) || ($1 > 4095)) {
- char s[100];
- _mesa_snprintf(s, sizeof(s),
- "relative address offset too large (%d)", $1);
- yyerror(& @1, state, s);
- YYERROR;
- } else {
- $$ = $1;
- }
- }
- ;
-
-addrRegNegOffset: INTEGER
- {
- if (($1 < 0) || ($1 > 4096)) {
- char s[100];
- _mesa_snprintf(s, sizeof(s),
- "relative address offset too large (%d)", $1);
- yyerror(& @1, state, s);
- YYERROR;
- } else {
- $$ = $1;
- }
- }
- ;
-
-addrReg: USED_IDENTIFIER
- {
- struct asm_symbol *const s = (struct asm_symbol *)
- _mesa_symbol_table_find_symbol(state->st, 0, $1);
-
- free($1);
-
- if (s == NULL) {
- yyerror(& @1, state, "invalid array member");
- YYERROR;
- } else if (s->type != at_address) {
- yyerror(& @1, state,
- "invalid variable for indexed array access");
- YYERROR;
- } else {
- $$ = s;
- }
- }
- ;
-
-addrComponent: MASK1
- {
- if ($1.mask != WRITEMASK_X) {
- yyerror(& @1, state, "invalid address component selector");
- YYERROR;
- } else {
- $$ = $1;
- }
- }
- ;
-
-addrWriteMask: MASK1
- {
- if ($1.mask != WRITEMASK_X) {
- yyerror(& @1, state,
- "address register write mask must be \".x\"");
- YYERROR;
- } else {
- $$ = $1;
- }
- }
- ;
-
-scalarSuffix: MASK1;
-
-swizzleSuffix: MASK1
- | MASK4
- | SWIZZLE
- | { $$.swizzle = SWIZZLE_NOOP; $$.mask = WRITEMASK_XYZW; }
- ;
-
-optionalMask: MASK4 | MASK3 | MASK2 | MASK1
- | { $$.swizzle = SWIZZLE_NOOP; $$.mask = WRITEMASK_XYZW; }
- ;
-
-optionalCcMask: '(' ccTest ')'
- {
- $$ = $2;
- }
- | '(' ccTest2 ')'
- {
- $$ = $2;
- }
- |
- {
- $$.CondMask = COND_TR;
- $$.CondSwizzle = SWIZZLE_NOOP;
- $$.CondSrc = 0;
- }
- ;
-
-ccTest: ccMaskRule swizzleSuffix
- {
- $$ = $1;
- $$.CondSwizzle = $2.swizzle;
- }
- ;
-
-ccTest2: ccMaskRule2 swizzleSuffix
- {
- $$ = $1;
- $$.CondSwizzle = $2.swizzle;
- }
- ;
-
-ccMaskRule: IDENTIFIER
- {
- const int cond = _mesa_parse_cc($1);
- if ((cond == 0) || ($1[2] != '\0')) {
- char *const err_str =
- make_error_string("invalid condition code \"%s\"", $1);
-
- yyerror(& @1, state, (err_str != NULL)
- ? err_str : "invalid condition code");
-
- if (err_str != NULL) {
- free(err_str);
- }
-
- YYERROR;
- }
-
- $$.CondMask = cond;
- $$.CondSwizzle = SWIZZLE_NOOP;
- $$.CondSrc = 0;
- }
- ;
-
-ccMaskRule2: USED_IDENTIFIER
- {
- const int cond = _mesa_parse_cc($1);
- if ((cond == 0) || ($1[2] != '\0')) {
- char *const err_str =
- make_error_string("invalid condition code \"%s\"", $1);
-
- yyerror(& @1, state, (err_str != NULL)
- ? err_str : "invalid condition code");
-
- if (err_str != NULL) {
- free(err_str);
- }
-
- YYERROR;
- }
-
- $$.CondMask = cond;
- $$.CondSwizzle = SWIZZLE_NOOP;
- $$.CondSrc = 0;
- }
- ;
-
-namingStatement: ATTRIB_statement
- | PARAM_statement
- | TEMP_statement
- | ADDRESS_statement
- | OUTPUT_statement
- | ALIAS_statement
- ;
-
-ATTRIB_statement: ATTRIB IDENTIFIER '=' attribBinding
- {
- struct asm_symbol *const s =
- declare_variable(state, $2, at_attrib, & @2);
-
- if (s == NULL) {
- free($2);
- YYERROR;
- } else {
- s->attrib_binding = $4;
- state->InputsBound |= (1U << s->attrib_binding);
-
- if (!validate_inputs(& @4, state)) {
- YYERROR;
- }
- }
- }
- ;
-
-attribBinding: VERTEX vtxAttribItem
- {
- $$ = $2;
- }
- | FRAGMENT fragAttribItem
- {
- $$ = $2;
- }
- ;
-
-vtxAttribItem: POSITION
- {
- $$ = VERT_ATTRIB_POS;
- }
- | WEIGHT vtxOptWeightNum
- {
- $$ = VERT_ATTRIB_WEIGHT;
- }
- | NORMAL
- {
- $$ = VERT_ATTRIB_NORMAL;
- }
- | COLOR optColorType
- {
- if (!state->ctx->Extensions.EXT_secondary_color) {
- yyerror(& @2, state, "GL_EXT_secondary_color not supported");
- YYERROR;
- }
-
- $$ = VERT_ATTRIB_COLOR0 + $2;
- }
- | FOGCOORD
- {
- if (!state->ctx->Extensions.EXT_fog_coord) {
- yyerror(& @1, state, "GL_EXT_fog_coord not supported");
- YYERROR;
- }
-
- $$ = VERT_ATTRIB_FOG;
- }
- | TEXCOORD optTexCoordUnitNum
- {
- $$ = VERT_ATTRIB_TEX0 + $2;
- }
- | MATRIXINDEX '[' vtxWeightNum ']'
- {
- yyerror(& @1, state, "GL_ARB_matrix_palette not supported");
- YYERROR;
- }
- | VTXATTRIB '[' vtxAttribNum ']'
- {
- $$ = VERT_ATTRIB_GENERIC0 + $3;
- }
- ;
-
-vtxAttribNum: INTEGER
- {
- if ((unsigned) $1 >= state->limits->MaxAttribs) {
- yyerror(& @1, state, "invalid vertex attribute reference");
- YYERROR;
- }
-
- $$ = $1;
- }
- ;
-
-vtxOptWeightNum: | '[' vtxWeightNum ']';
-vtxWeightNum: INTEGER;
-
-fragAttribItem: POSITION
- {
- $$ = FRAG_ATTRIB_WPOS;
- }
- | COLOR optColorType
- {
- $$ = FRAG_ATTRIB_COL0 + $2;
- }
- | FOGCOORD
- {
- $$ = FRAG_ATTRIB_FOGC;
- }
- | TEXCOORD optTexCoordUnitNum
- {
- $$ = FRAG_ATTRIB_TEX0 + $2;
- }
- ;
-
-PARAM_statement: PARAM_singleStmt | PARAM_multipleStmt;
-
-PARAM_singleStmt: PARAM IDENTIFIER paramSingleInit
- {
- struct asm_symbol *const s =
- declare_variable(state, $2, at_param, & @2);
-
- if (s == NULL) {
- free($2);
- YYERROR;
- } else {
- s->param_binding_type = $3.param_binding_type;
- s->param_binding_begin = $3.param_binding_begin;
- s->param_binding_length = $3.param_binding_length;
- s->param_binding_swizzle = $3.param_binding_swizzle;
- s->param_is_array = 0;
- }
- }
- ;
-
-PARAM_multipleStmt: PARAM IDENTIFIER '[' optArraySize ']' paramMultipleInit
- {
- if (($4 != 0) && ((unsigned) $4 != $6.param_binding_length)) {
- free($2);
- yyerror(& @4, state,
- "parameter array size and number of bindings must match");
- YYERROR;
- } else {
- struct asm_symbol *const s =
- declare_variable(state, $2, $6.type, & @2);
-
- if (s == NULL) {
- free($2);
- YYERROR;
- } else {
- s->param_binding_type = $6.param_binding_type;
- s->param_binding_begin = $6.param_binding_begin;
- s->param_binding_length = $6.param_binding_length;
- s->param_binding_swizzle = SWIZZLE_XYZW;
- s->param_is_array = 1;
- }
- }
- }
- ;
-
-optArraySize:
- {
- $$ = 0;
- }
- | INTEGER
- {
- if (($1 < 1) || ((unsigned) $1 > state->limits->MaxParameters)) {
- yyerror(& @1, state, "invalid parameter array size");
- YYERROR;
- } else {
- $$ = $1;
- }
- }
- ;
-
-paramSingleInit: '=' paramSingleItemDecl
- {
- $$ = $2;
- }
- ;
-
-paramMultipleInit: '=' '{' paramMultInitList '}'
- {
- $$ = $3;
- }
- ;
-
-paramMultInitList: paramMultipleItem
- | paramMultInitList ',' paramMultipleItem
- {
- $1.param_binding_length += $3.param_binding_length;
- $$ = $1;
- }
- ;
-
-paramSingleItemDecl: stateSingleItem
- {
- memset(& $$, 0, sizeof($$));
- $$.param_binding_begin = ~0;
- initialize_symbol_from_state(state->prog, & $$, $1);
- }
- | programSingleItem
- {
- memset(& $$, 0, sizeof($$));
- $$.param_binding_begin = ~0;
- initialize_symbol_from_param(state->prog, & $$, $1);
- }
- | paramConstDecl
- {
- memset(& $$, 0, sizeof($$));
- $$.param_binding_begin = ~0;
- initialize_symbol_from_const(state->prog, & $$, & $1, GL_TRUE);
- }
- ;
-
-paramSingleItemUse: stateSingleItem
- {
- memset(& $$, 0, sizeof($$));
- $$.param_binding_begin = ~0;
- initialize_symbol_from_state(state->prog, & $$, $1);
- }
- | programSingleItem
- {
- memset(& $$, 0, sizeof($$));
- $$.param_binding_begin = ~0;
- initialize_symbol_from_param(state->prog, & $$, $1);
- }
- | paramConstUse
- {
- memset(& $$, 0, sizeof($$));
- $$.param_binding_begin = ~0;
- initialize_symbol_from_const(state->prog, & $$, & $1, GL_TRUE);
- }
- ;
-
-paramMultipleItem: stateMultipleItem
- {
- memset(& $$, 0, sizeof($$));
- $$.param_binding_begin = ~0;
- initialize_symbol_from_state(state->prog, & $$, $1);
- }
- | programMultipleItem
- {
- memset(& $$, 0, sizeof($$));
- $$.param_binding_begin = ~0;
- initialize_symbol_from_param(state->prog, & $$, $1);
- }
- | paramConstDecl
- {
- memset(& $$, 0, sizeof($$));
- $$.param_binding_begin = ~0;
- initialize_symbol_from_const(state->prog, & $$, & $1, GL_FALSE);
- }
- ;
-
-stateMultipleItem: stateSingleItem { memcpy($$, $1, sizeof($$)); }
- | STATE stateMatrixRows { memcpy($$, $2, sizeof($$)); }
- ;
-
-stateSingleItem: STATE stateMaterialItem { memcpy($$, $2, sizeof($$)); }
- | STATE stateLightItem { memcpy($$, $2, sizeof($$)); }
- | STATE stateLightModelItem { memcpy($$, $2, sizeof($$)); }
- | STATE stateLightProdItem { memcpy($$, $2, sizeof($$)); }
- | STATE stateTexGenItem { memcpy($$, $2, sizeof($$)); }
- | STATE stateTexEnvItem { memcpy($$, $2, sizeof($$)); }
- | STATE stateFogItem { memcpy($$, $2, sizeof($$)); }
- | STATE stateClipPlaneItem { memcpy($$, $2, sizeof($$)); }
- | STATE statePointItem { memcpy($$, $2, sizeof($$)); }
- | STATE stateMatrixRow { memcpy($$, $2, sizeof($$)); }
- | STATE stateDepthItem { memcpy($$, $2, sizeof($$)); }
- ;
-
-stateMaterialItem: MATERIAL optFaceType stateMatProperty
- {
- memset($$, 0, sizeof($$));
- $$[0] = STATE_MATERIAL;
- $$[1] = $2;
- $$[2] = $3;
- }
- ;
-
-stateMatProperty: ambDiffSpecProperty
- {
- $$ = $1;
- }
- | EMISSION
- {
- $$ = STATE_EMISSION;
- }
- | SHININESS
- {
- $$ = STATE_SHININESS;
- }
- ;
-
-stateLightItem: LIGHT '[' stateLightNumber ']' stateLightProperty
- {
- memset($$, 0, sizeof($$));
- $$[0] = STATE_LIGHT;
- $$[1] = $3;
- $$[2] = $5;
- }
- ;
-
-stateLightProperty: ambDiffSpecProperty
- {
- $$ = $1;
- }
- | POSITION
- {
- $$ = STATE_POSITION;
- }
- | ATTENUATION
- {
- if (!state->ctx->Extensions.EXT_point_parameters) {
- yyerror(& @1, state, "GL_ARB_point_parameters not supported");
- YYERROR;
- }
-
- $$ = STATE_ATTENUATION;
- }
- | SPOT stateSpotProperty
- {
- $$ = $2;
- }
- | HALF
- {
- $$ = STATE_HALF_VECTOR;
- }
- ;
-
-stateSpotProperty: DIRECTION
- {
- $$ = STATE_SPOT_DIRECTION;
- }
- ;
-
-stateLightModelItem: LIGHTMODEL stateLModProperty
- {
- $$[0] = $2[0];
- $$[1] = $2[1];
- }
- ;
-
-stateLModProperty: AMBIENT
- {
- memset($$, 0, sizeof($$));
- $$[0] = STATE_LIGHTMODEL_AMBIENT;
- }
- | optFaceType SCENECOLOR
- {
- memset($$, 0, sizeof($$));
- $$[0] = STATE_LIGHTMODEL_SCENECOLOR;
- $$[1] = $1;
- }
- ;
-
-stateLightProdItem: LIGHTPROD '[' stateLightNumber ']' optFaceType stateLProdProperty
- {
- memset($$, 0, sizeof($$));
- $$[0] = STATE_LIGHTPROD;
- $$[1] = $3;
- $$[2] = $5;
- $$[3] = $6;
- }
- ;
-
-stateLProdProperty: ambDiffSpecProperty;
-
-stateTexEnvItem: TEXENV optLegacyTexUnitNum stateTexEnvProperty
- {
- memset($$, 0, sizeof($$));
- $$[0] = $3;
- $$[1] = $2;
- }
- ;
-
-stateTexEnvProperty: COLOR
- {
- $$ = STATE_TEXENV_COLOR;
- }
- ;
-
-ambDiffSpecProperty: AMBIENT
- {
- $$ = STATE_AMBIENT;
- }
- | DIFFUSE
- {
- $$ = STATE_DIFFUSE;
- }
- | SPECULAR
- {
- $$ = STATE_SPECULAR;
- }
- ;
-
-stateLightNumber: INTEGER
- {
- if ((unsigned) $1 >= state->MaxLights) {
- yyerror(& @1, state, "invalid light selector");
- YYERROR;
- }
-
- $$ = $1;
- }
- ;
-
-stateTexGenItem: TEXGEN optTexCoordUnitNum stateTexGenType stateTexGenCoord
- {
- memset($$, 0, sizeof($$));
- $$[0] = STATE_TEXGEN;
- $$[1] = $2;
- $$[2] = $3 + $4;
- }
- ;
-
-stateTexGenType: EYE
- {
- $$ = STATE_TEXGEN_EYE_S;
- }
- | OBJECT
- {
- $$ = STATE_TEXGEN_OBJECT_S;
- }
- ;
-stateTexGenCoord: TEXGEN_S
- {
- $$ = STATE_TEXGEN_EYE_S - STATE_TEXGEN_EYE_S;
- }
- | TEXGEN_T
- {
- $$ = STATE_TEXGEN_EYE_T - STATE_TEXGEN_EYE_S;
- }
- | TEXGEN_R
- {
- $$ = STATE_TEXGEN_EYE_R - STATE_TEXGEN_EYE_S;
- }
- | TEXGEN_Q
- {
- $$ = STATE_TEXGEN_EYE_Q - STATE_TEXGEN_EYE_S;
- }
- ;
-
-stateFogItem: FOG stateFogProperty
- {
- memset($$, 0, sizeof($$));
- $$[0] = $2;
- }
- ;
-
-stateFogProperty: COLOR
- {
- $$ = STATE_FOG_COLOR;
- }
- | PARAMS
- {
- $$ = STATE_FOG_PARAMS;
- }
- ;
-
-stateClipPlaneItem: CLIP '[' stateClipPlaneNum ']' PLANE
- {
- memset($$, 0, sizeof($$));
- $$[0] = STATE_CLIPPLANE;
- $$[1] = $3;
- }
- ;
-
-stateClipPlaneNum: INTEGER
- {
- if ((unsigned) $1 >= state->MaxClipPlanes) {
- yyerror(& @1, state, "invalid clip plane selector");
- YYERROR;
- }
-
- $$ = $1;
- }
- ;
-
-statePointItem: POINT_TOK statePointProperty
- {
- memset($$, 0, sizeof($$));
- $$[0] = $2;
- }
- ;
-
-statePointProperty: SIZE_TOK
- {
- $$ = STATE_POINT_SIZE;
- }
- | ATTENUATION
- {
- $$ = STATE_POINT_ATTENUATION;
- }
- ;
-
-stateMatrixRow: stateMatrixItem ROW '[' stateMatrixRowNum ']'
- {
- $$[0] = $1[0];
- $$[1] = $1[1];
- $$[2] = $4;
- $$[3] = $4;
- $$[4] = $1[2];
- }
- ;
-
-stateMatrixRows: stateMatrixItem optMatrixRows
- {
- $$[0] = $1[0];
- $$[1] = $1[1];
- $$[2] = $2[2];
- $$[3] = $2[3];
- $$[4] = $1[2];
- }
- ;
-
-optMatrixRows:
- {
- $$[2] = 0;
- $$[3] = 3;
- }
- | ROW '[' stateMatrixRowNum DOT_DOT stateMatrixRowNum ']'
- {
- /* It seems logical that the matrix row range specifier would have
- * to specify a range or more than one row (i.e., $5 > $3).
- * However, the ARB_vertex_program spec says "a program will fail
- * to load if <a> is greater than <b>." This means that $3 == $5
- * is valid.
- */
- if ($3 > $5) {
- yyerror(& @3, state, "invalid matrix row range");
- YYERROR;
- }
-
- $$[2] = $3;
- $$[3] = $5;
- }
- ;
-
-stateMatrixItem: MATRIX stateMatrixName stateOptMatModifier
- {
- $$[0] = $2[0];
- $$[1] = $2[1];
- $$[2] = $3;
- }
- ;
-
-stateOptMatModifier:
- {
- $$ = 0;
- }
- | stateMatModifier
- {
- $$ = $1;
- }
- ;
-
-stateMatModifier: INVERSE
- {
- $$ = STATE_MATRIX_INVERSE;
- }
- | TRANSPOSE
- {
- $$ = STATE_MATRIX_TRANSPOSE;
- }
- | INVTRANS
- {
- $$ = STATE_MATRIX_INVTRANS;
- }
- ;
-
-stateMatrixRowNum: INTEGER
- {
- if ($1 > 3) {
- yyerror(& @1, state, "invalid matrix row reference");
- YYERROR;
- }
-
- $$ = $1;
- }
- ;
-
-stateMatrixName: MODELVIEW stateOptModMatNum
- {
- $$[0] = STATE_MODELVIEW_MATRIX;
- $$[1] = $2;
- }
- | PROJECTION
- {
- $$[0] = STATE_PROJECTION_MATRIX;
- $$[1] = 0;
- }
- | MVP
- {
- $$[0] = STATE_MVP_MATRIX;
- $$[1] = 0;
- }
- | TEXTURE optTexCoordUnitNum
- {
- $$[0] = STATE_TEXTURE_MATRIX;
- $$[1] = $2;
- }
- | PALETTE '[' statePaletteMatNum ']'
- {
- yyerror(& @1, state, "GL_ARB_matrix_palette not supported");
- YYERROR;
- }
- | MAT_PROGRAM '[' stateProgramMatNum ']'
- {
- $$[0] = STATE_PROGRAM_MATRIX;
- $$[1] = $3;
- }
- ;
-
-stateOptModMatNum:
- {
- $$ = 0;
- }
- | '[' stateModMatNum ']'
- {
- $$ = $2;
- }
- ;
-stateModMatNum: INTEGER
- {
- /* Since GL_ARB_vertex_blend isn't supported, only modelview matrix
- * zero is valid.
- */
- if ($1 != 0) {
- yyerror(& @1, state, "invalid modelview matrix index");
- YYERROR;
- }
-
- $$ = $1;
- }
- ;
-statePaletteMatNum: INTEGER
- {
- /* Since GL_ARB_matrix_palette isn't supported, just let any value
- * through here. The error will be generated later.
- */
- $$ = $1;
- }
- ;
-stateProgramMatNum: INTEGER
- {
- if ((unsigned) $1 >= state->MaxProgramMatrices) {
- yyerror(& @1, state, "invalid program matrix selector");
- YYERROR;
- }
-
- $$ = $1;
- }
- ;
-
-stateDepthItem: DEPTH RANGE
- {
- memset($$, 0, sizeof($$));
- $$[0] = STATE_DEPTH_RANGE;
- }
- ;
-
-
-programSingleItem: progEnvParam | progLocalParam;
-
-programMultipleItem: progEnvParams | progLocalParams;
-
-progEnvParams: PROGRAM ENV '[' progEnvParamNums ']'
- {
- memset($$, 0, sizeof($$));
- $$[0] = state->state_param_enum;
- $$[1] = STATE_ENV;
- $$[2] = $4[0];
- $$[3] = $4[1];
- }
- ;
-
-progEnvParamNums: progEnvParamNum
- {
- $$[0] = $1;
- $$[1] = $1;
- }
- | progEnvParamNum DOT_DOT progEnvParamNum
- {
- $$[0] = $1;
- $$[1] = $3;
- }
- ;
-
-progEnvParam: PROGRAM ENV '[' progEnvParamNum ']'
- {
- memset($$, 0, sizeof($$));
- $$[0] = state->state_param_enum;
- $$[1] = STATE_ENV;
- $$[2] = $4;
- $$[3] = $4;
- }
- ;
-
-progLocalParams: PROGRAM LOCAL '[' progLocalParamNums ']'
- {
- memset($$, 0, sizeof($$));
- $$[0] = state->state_param_enum;
- $$[1] = STATE_LOCAL;
- $$[2] = $4[0];
- $$[3] = $4[1];
- }
-
-progLocalParamNums: progLocalParamNum
- {
- $$[0] = $1;
- $$[1] = $1;
- }
- | progLocalParamNum DOT_DOT progLocalParamNum
- {
- $$[0] = $1;
- $$[1] = $3;
- }
- ;
-
-progLocalParam: PROGRAM LOCAL '[' progLocalParamNum ']'
- {
- memset($$, 0, sizeof($$));
- $$[0] = state->state_param_enum;
- $$[1] = STATE_LOCAL;
- $$[2] = $4;
- $$[3] = $4;
- }
- ;
-
-progEnvParamNum: INTEGER
- {
- if ((unsigned) $1 >= state->limits->MaxEnvParams) {
- yyerror(& @1, state, "invalid environment parameter reference");
- YYERROR;
- }
- $$ = $1;
- }
- ;
-
-progLocalParamNum: INTEGER
- {
- if ((unsigned) $1 >= state->limits->MaxLocalParams) {
- yyerror(& @1, state, "invalid local parameter reference");
- YYERROR;
- }
- $$ = $1;
- }
- ;
-
-
-
-paramConstDecl: paramConstScalarDecl | paramConstVector;
-paramConstUse: paramConstScalarUse | paramConstVector;
-
-paramConstScalarDecl: signedFloatConstant
- {
- $$.count = 4;
- $$.data[0] = $1;
- $$.data[1] = $1;
- $$.data[2] = $1;
- $$.data[3] = $1;
- }
- ;
-
-paramConstScalarUse: REAL
- {
- $$.count = 1;
- $$.data[0] = $1;
- $$.data[1] = $1;
- $$.data[2] = $1;
- $$.data[3] = $1;
- }
- | INTEGER
- {
- $$.count = 1;
- $$.data[0] = (float) $1;
- $$.data[1] = (float) $1;
- $$.data[2] = (float) $1;
- $$.data[3] = (float) $1;
- }
- ;
-
-paramConstVector: '{' signedFloatConstant '}'
- {
- $$.count = 4;
- $$.data[0] = $2;
- $$.data[1] = 0.0f;
- $$.data[2] = 0.0f;
- $$.data[3] = 1.0f;
- }
- | '{' signedFloatConstant ',' signedFloatConstant '}'
- {
- $$.count = 4;
- $$.data[0] = $2;
- $$.data[1] = $4;
- $$.data[2] = 0.0f;
- $$.data[3] = 1.0f;
- }
- | '{' signedFloatConstant ',' signedFloatConstant ','
- signedFloatConstant '}'
- {
- $$.count = 4;
- $$.data[0] = $2;
- $$.data[1] = $4;
- $$.data[2] = $6;
- $$.data[3] = 1.0f;
- }
- | '{' signedFloatConstant ',' signedFloatConstant ','
- signedFloatConstant ',' signedFloatConstant '}'
- {
- $$.count = 4;
- $$.data[0] = $2;
- $$.data[1] = $4;
- $$.data[2] = $6;
- $$.data[3] = $8;
- }
- ;
-
-signedFloatConstant: optionalSign REAL
- {
- $$ = ($1) ? -$2 : $2;
- }
- | optionalSign INTEGER
- {
- $$ = (float)(($1) ? -$2 : $2);
- }
- ;
-
-optionalSign: '+' { $$ = FALSE; }
- | '-' { $$ = TRUE; }
- | { $$ = FALSE; }
- ;
-
-TEMP_statement: optVarSize TEMP { $<integer>$ = $2; } varNameList
- ;
-
-optVarSize: string
- {
- /* NV_fragment_program_option defines the size qualifiers in a
- * fairly broken way. "SHORT" or "LONG" can optionally be used
- * before TEMP or OUTPUT. However, neither is a reserved word!
- * This means that we have to parse it as an identifier, then check
- * to make sure it's one of the valid values. *sigh*
- *
- * In addition, the grammar in the extension spec does *not* allow
- * the size specifier to be optional, but all known implementations
- * do.
- */
- if (!state->option.NV_fragment) {
- yyerror(& @1, state, "unexpected IDENTIFIER");
- YYERROR;
- }
-
- if (strcmp("SHORT", $1) == 0) {
- } else if (strcmp("LONG", $1) == 0) {
- } else {
- char *const err_str =
- make_error_string("invalid storage size specifier \"%s\"",
- $1);
-
- yyerror(& @1, state, (err_str != NULL)
- ? err_str : "invalid storage size specifier");
-
- if (err_str != NULL) {
- free(err_str);
- }
-
- YYERROR;
- }
- }
- |
- {
- }
- ;
-
-ADDRESS_statement: ADDRESS { $<integer>$ = $1; } varNameList
- ;
-
-varNameList: varNameList ',' IDENTIFIER
- {
- if (!declare_variable(state, $3, $<integer>0, & @3)) {
- free($3);
- YYERROR;
- }
- }
- | IDENTIFIER
- {
- if (!declare_variable(state, $1, $<integer>0, & @1)) {
- free($1);
- YYERROR;
- }
- }
- ;
-
-OUTPUT_statement: optVarSize OUTPUT IDENTIFIER '=' resultBinding
- {
- struct asm_symbol *const s =
- declare_variable(state, $3, at_output, & @3);
-
- if (s == NULL) {
- free($3);
- YYERROR;
- } else {
- s->output_binding = $5;
- }
- }
- ;
-
-resultBinding: RESULT POSITION
- {
- if (state->mode == ARB_vertex) {
- $$ = VERT_RESULT_HPOS;
- } else {
- yyerror(& @2, state, "invalid program result name");
- YYERROR;
- }
- }
- | RESULT FOGCOORD
- {
- if (state->mode == ARB_vertex) {
- $$ = VERT_RESULT_FOGC;
- } else {
- yyerror(& @2, state, "invalid program result name");
- YYERROR;
- }
- }
- | RESULT resultColBinding
- {
- $$ = $2;
- }
- | RESULT POINTSIZE
- {
- if (state->mode == ARB_vertex) {
- $$ = VERT_RESULT_PSIZ;
- } else {
- yyerror(& @2, state, "invalid program result name");
- YYERROR;
- }
- }
- | RESULT TEXCOORD optTexCoordUnitNum
- {
- if (state->mode == ARB_vertex) {
- $$ = VERT_RESULT_TEX0 + $3;
- } else {
- yyerror(& @2, state, "invalid program result name");
- YYERROR;
- }
- }
- | RESULT DEPTH
- {
- if (state->mode == ARB_fragment) {
- $$ = FRAG_RESULT_DEPTH;
- } else {
- yyerror(& @2, state, "invalid program result name");
- YYERROR;
- }
- }
- ;
-
-resultColBinding: COLOR optResultFaceType optResultColorType
- {
- $$ = $2 + $3;
- }
- ;
-
-optResultFaceType:
- {
- $$ = (state->mode == ARB_vertex)
- ? VERT_RESULT_COL0
- : FRAG_RESULT_COLOR;
- }
- | FRONT
- {
- if (state->mode == ARB_vertex) {
- $$ = VERT_RESULT_COL0;
- } else {
- yyerror(& @1, state, "invalid program result name");
- YYERROR;
- }
- }
- | BACK
- {
- if (state->mode == ARB_vertex) {
- $$ = VERT_RESULT_BFC0;
- } else {
- yyerror(& @1, state, "invalid program result name");
- YYERROR;
- }
- }
- ;
-
-optResultColorType:
- {
- $$ = 0;
- }
- | PRIMARY
- {
- if (state->mode == ARB_vertex) {
- $$ = 0;
- } else {
- yyerror(& @1, state, "invalid program result name");
- YYERROR;
- }
- }
- | SECONDARY
- {
- if (state->mode == ARB_vertex) {
- $$ = 1;
- } else {
- yyerror(& @1, state, "invalid program result name");
- YYERROR;
- }
- }
- ;
-
-optFaceType: { $$ = 0; }
- | FRONT { $$ = 0; }
- | BACK { $$ = 1; }
- ;
-
-optColorType: { $$ = 0; }
- | PRIMARY { $$ = 0; }
- | SECONDARY { $$ = 1; }
- ;
-
-optTexCoordUnitNum: { $$ = 0; }
- | '[' texCoordUnitNum ']' { $$ = $2; }
- ;
-
-optTexImageUnitNum: { $$ = 0; }
- | '[' texImageUnitNum ']' { $$ = $2; }
- ;
-
-optLegacyTexUnitNum: { $$ = 0; }
- | '[' legacyTexUnitNum ']' { $$ = $2; }
- ;
-
-texCoordUnitNum: INTEGER
- {
- if ((unsigned) $1 >= state->MaxTextureCoordUnits) {
- yyerror(& @1, state, "invalid texture coordinate unit selector");
- YYERROR;
- }
-
- $$ = $1;
- }
- ;
-
-texImageUnitNum: INTEGER
- {
- if ((unsigned) $1 >= state->MaxTextureImageUnits) {
- yyerror(& @1, state, "invalid texture image unit selector");
- YYERROR;
- }
-
- $$ = $1;
- }
- ;
-
-legacyTexUnitNum: INTEGER
- {
- if ((unsigned) $1 >= state->MaxTextureUnits) {
- yyerror(& @1, state, "invalid texture unit selector");
- YYERROR;
- }
-
- $$ = $1;
- }
- ;
-
-ALIAS_statement: ALIAS IDENTIFIER '=' USED_IDENTIFIER
- {
- struct asm_symbol *exist = (struct asm_symbol *)
- _mesa_symbol_table_find_symbol(state->st, 0, $2);
- struct asm_symbol *target = (struct asm_symbol *)
- _mesa_symbol_table_find_symbol(state->st, 0, $4);
-
- free($4);
-
- if (exist != NULL) {
- char m[1000];
- _mesa_snprintf(m, sizeof(m), "redeclared identifier: %s", $2);
- free($2);
- yyerror(& @2, state, m);
- YYERROR;
- } else if (target == NULL) {
- free($2);
- yyerror(& @4, state,
- "undefined variable binding in ALIAS statement");
- YYERROR;
- } else {
- _mesa_symbol_table_add_symbol(state->st, 0, $2, target);
- }
- }
- ;
-
-string: IDENTIFIER
- | USED_IDENTIFIER
- ;
-
-%%
-
-void
-asm_instruction_set_operands(struct asm_instruction *inst,
- const struct prog_dst_register *dst,
- const struct asm_src_register *src0,
- const struct asm_src_register *src1,
- const struct asm_src_register *src2)
-{
- /* In the core ARB extensions only the KIL instruction doesn't have a
- * destination register.
- */
- if (dst == NULL) {
- init_dst_reg(& inst->Base.DstReg);
- } else {
- inst->Base.DstReg = *dst;
- }
-
- /* The only instruction that doesn't have any source registers is the
- * condition-code based KIL instruction added by NV_fragment_program_option.
- */
- if (src0 != NULL) {
- inst->Base.SrcReg[0] = src0->Base;
- inst->SrcReg[0] = *src0;
- } else {
- init_src_reg(& inst->SrcReg[0]);
- }
-
- if (src1 != NULL) {
- inst->Base.SrcReg[1] = src1->Base;
- inst->SrcReg[1] = *src1;
- } else {
- init_src_reg(& inst->SrcReg[1]);
- }
-
- if (src2 != NULL) {
- inst->Base.SrcReg[2] = src2->Base;
- inst->SrcReg[2] = *src2;
- } else {
- init_src_reg(& inst->SrcReg[2]);
- }
-}
-
-
-struct asm_instruction *
-asm_instruction_ctor(gl_inst_opcode op,
- const struct prog_dst_register *dst,
- const struct asm_src_register *src0,
- const struct asm_src_register *src1,
- const struct asm_src_register *src2)
-{
- struct asm_instruction *inst = CALLOC_STRUCT(asm_instruction);
-
- if (inst) {
- _mesa_init_instructions(& inst->Base, 1);
- inst->Base.Opcode = op;
-
- asm_instruction_set_operands(inst, dst, src0, src1, src2);
- }
-
- return inst;
-}
-
-
-struct asm_instruction *
-asm_instruction_copy_ctor(const struct prog_instruction *base,
- const struct prog_dst_register *dst,
- const struct asm_src_register *src0,
- const struct asm_src_register *src1,
- const struct asm_src_register *src2)
-{
- struct asm_instruction *inst = CALLOC_STRUCT(asm_instruction);
-
- if (inst) {
- _mesa_init_instructions(& inst->Base, 1);
- inst->Base.Opcode = base->Opcode;
- inst->Base.CondUpdate = base->CondUpdate;
- inst->Base.CondDst = base->CondDst;
- inst->Base.SaturateMode = base->SaturateMode;
- inst->Base.Precision = base->Precision;
-
- asm_instruction_set_operands(inst, dst, src0, src1, src2);
- }
-
- return inst;
-}
-
-
-void
-init_dst_reg(struct prog_dst_register *r)
-{
- memset(r, 0, sizeof(*r));
- r->File = PROGRAM_UNDEFINED;
- r->WriteMask = WRITEMASK_XYZW;
- r->CondMask = COND_TR;
- r->CondSwizzle = SWIZZLE_NOOP;
-}
-
-
-/** Like init_dst_reg() but set the File and Index fields. */
-void
-set_dst_reg(struct prog_dst_register *r, gl_register_file file, GLint index)
-{
- const GLint maxIndex = 1 << INST_INDEX_BITS;
- const GLint minIndex = 0;
- ASSERT(index >= minIndex);
- (void) minIndex;
- ASSERT(index <= maxIndex);
- (void) maxIndex;
- ASSERT(file == PROGRAM_TEMPORARY ||
- file == PROGRAM_ADDRESS ||
- file == PROGRAM_OUTPUT);
- memset(r, 0, sizeof(*r));
- r->File = file;
- r->Index = index;
- r->WriteMask = WRITEMASK_XYZW;
- r->CondMask = COND_TR;
- r->CondSwizzle = SWIZZLE_NOOP;
-}
-
-
-void
-init_src_reg(struct asm_src_register *r)
-{
- memset(r, 0, sizeof(*r));
- r->Base.File = PROGRAM_UNDEFINED;
- r->Base.Swizzle = SWIZZLE_NOOP;
- r->Symbol = NULL;
-}
-
-
-/** Like init_src_reg() but set the File and Index fields.
- * \return GL_TRUE if a valid src register, GL_FALSE otherwise
- */
-void
-set_src_reg(struct asm_src_register *r, gl_register_file file, GLint index)
-{
- set_src_reg_swz(r, file, index, SWIZZLE_XYZW);
-}
-
-
-void
-set_src_reg_swz(struct asm_src_register *r, gl_register_file file, GLint index,
- GLuint swizzle)
-{
- const GLint maxIndex = (1 << INST_INDEX_BITS) - 1;
- const GLint minIndex = -(1 << INST_INDEX_BITS);
- ASSERT(file < PROGRAM_FILE_MAX);
- ASSERT(index >= minIndex);
- (void) minIndex;
- ASSERT(index <= maxIndex);
- (void) maxIndex;
- memset(r, 0, sizeof(*r));
- r->Base.File = file;
- r->Base.Index = index;
- r->Base.Swizzle = swizzle;
- r->Symbol = NULL;
-}
-
-
-/**
- * Validate the set of inputs used by a program
- *
- * Validates that legal sets of inputs are used by the program. In this case
- * "used" included both reading the input or binding the input to a name using
- * the \c ATTRIB command.
- *
- * \return
- * \c TRUE if the combination of inputs used is valid, \c FALSE otherwise.
- */
-int
-validate_inputs(struct YYLTYPE *locp, struct asm_parser_state *state)
-{
- const int inputs = state->prog->InputsRead | state->InputsBound;
-
- if (((inputs & 0x0ffff) & (inputs >> 16)) != 0) {
- yyerror(locp, state, "illegal use of generic attribute and name attribute");
- return 0;
- }
-
- return 1;
-}
-
-
-struct asm_symbol *
-declare_variable(struct asm_parser_state *state, char *name, enum asm_type t,
- struct YYLTYPE *locp)
-{
- struct asm_symbol *s = NULL;
- struct asm_symbol *exist = (struct asm_symbol *)
- _mesa_symbol_table_find_symbol(state->st, 0, name);
-
-
- if (exist != NULL) {
- yyerror(locp, state, "redeclared identifier");
- } else {
- s = calloc(1, sizeof(struct asm_symbol));
- s->name = name;
- s->type = t;
-
- switch (t) {
- case at_temp:
- if (state->prog->NumTemporaries >= state->limits->MaxTemps) {
- yyerror(locp, state, "too many temporaries declared");
- free(s);
- return NULL;
- }
-
- s->temp_binding = state->prog->NumTemporaries;
- state->prog->NumTemporaries++;
- break;
-
- case at_address:
- if (state->prog->NumAddressRegs >= state->limits->MaxAddressRegs) {
- yyerror(locp, state, "too many address registers declared");
- free(s);
- return NULL;
- }
-
- /* FINISHME: Add support for multiple address registers.
- */
- state->prog->NumAddressRegs++;
- break;
-
- default:
- break;
- }
-
- _mesa_symbol_table_add_symbol(state->st, 0, s->name, s);
- s->next = state->sym;
- state->sym = s;
- }
-
- return s;
-}
-
-
-int add_state_reference(struct gl_program_parameter_list *param_list,
- const gl_state_index tokens[STATE_LENGTH])
-{
- const GLuint size = 4; /* XXX fix */
- char *name;
- GLint index;
-
- name = _mesa_program_state_string(tokens);
- index = _mesa_add_parameter(param_list, PROGRAM_STATE_VAR, name,
- size, GL_NONE, NULL, tokens, 0x0);
- param_list->StateFlags |= _mesa_program_state_flags(tokens);
-
- /* free name string here since we duplicated it in add_parameter() */
- free(name);
-
- return index;
-}
-
-
-int
-initialize_symbol_from_state(struct gl_program *prog,
- struct asm_symbol *param_var,
- const gl_state_index tokens[STATE_LENGTH])
-{
- int idx = -1;
- gl_state_index state_tokens[STATE_LENGTH];
-
-
- memcpy(state_tokens, tokens, sizeof(state_tokens));
-
- param_var->type = at_param;
- param_var->param_binding_type = PROGRAM_STATE_VAR;
-
- /* If we are adding a STATE_MATRIX that has multiple rows, we need to
- * unroll it and call add_state_reference() for each row
- */
- if ((state_tokens[0] == STATE_MODELVIEW_MATRIX ||
- state_tokens[0] == STATE_PROJECTION_MATRIX ||
- state_tokens[0] == STATE_MVP_MATRIX ||
- state_tokens[0] == STATE_TEXTURE_MATRIX ||
- state_tokens[0] == STATE_PROGRAM_MATRIX)
- && (state_tokens[2] != state_tokens[3])) {
- int row;
- const int first_row = state_tokens[2];
- const int last_row = state_tokens[3];
-
- for (row = first_row; row <= last_row; row++) {
- state_tokens[2] = state_tokens[3] = row;
-
- idx = add_state_reference(prog->Parameters, state_tokens);
- if (param_var->param_binding_begin == ~0U) {
- param_var->param_binding_begin = idx;
- param_var->param_binding_swizzle = SWIZZLE_XYZW;
- }
-
- param_var->param_binding_length++;
- }
- }
- else {
- idx = add_state_reference(prog->Parameters, state_tokens);
- if (param_var->param_binding_begin == ~0U) {
- param_var->param_binding_begin = idx;
- param_var->param_binding_swizzle = SWIZZLE_XYZW;
- }
- param_var->param_binding_length++;
- }
-
- return idx;
-}
-
-
-int
-initialize_symbol_from_param(struct gl_program *prog,
- struct asm_symbol *param_var,
- const gl_state_index tokens[STATE_LENGTH])
-{
- int idx = -1;
- gl_state_index state_tokens[STATE_LENGTH];
-
-
- memcpy(state_tokens, tokens, sizeof(state_tokens));
-
- assert((state_tokens[0] == STATE_VERTEX_PROGRAM)
- || (state_tokens[0] == STATE_FRAGMENT_PROGRAM));
- assert((state_tokens[1] == STATE_ENV)
- || (state_tokens[1] == STATE_LOCAL));
-
- /*
- * The param type is STATE_VAR. The program parameter entry will
- * effectively be a pointer into the LOCAL or ENV parameter array.
- */
- param_var->type = at_param;
- param_var->param_binding_type = PROGRAM_STATE_VAR;
-
- /* If we are adding a STATE_ENV or STATE_LOCAL that has multiple elements,
- * we need to unroll it and call add_state_reference() for each row
- */
- if (state_tokens[2] != state_tokens[3]) {
- int row;
- const int first_row = state_tokens[2];
- const int last_row = state_tokens[3];
-
- for (row = first_row; row <= last_row; row++) {
- state_tokens[2] = state_tokens[3] = row;
-
- idx = add_state_reference(prog->Parameters, state_tokens);
- if (param_var->param_binding_begin == ~0U) {
- param_var->param_binding_begin = idx;
- param_var->param_binding_swizzle = SWIZZLE_XYZW;
- }
- param_var->param_binding_length++;
- }
- }
- else {
- idx = add_state_reference(prog->Parameters, state_tokens);
- if (param_var->param_binding_begin == ~0U) {
- param_var->param_binding_begin = idx;
- param_var->param_binding_swizzle = SWIZZLE_XYZW;
- }
- param_var->param_binding_length++;
- }
-
- return idx;
-}
-
-
-/**
- * Put a float/vector constant/literal into the parameter list.
- * \param param_var returns info about the parameter/constant's location,
- * binding, type, etc.
- * \param vec the vector/constant to add
- * \param allowSwizzle if true, try to consolidate constants which only differ
- * by a swizzle. We don't want to do this when building
- * arrays of constants that may be indexed indirectly.
- * \return index of the constant in the parameter list.
- */
-int
-initialize_symbol_from_const(struct gl_program *prog,
- struct asm_symbol *param_var,
- const struct asm_vector *vec,
- GLboolean allowSwizzle)
-{
- unsigned swizzle;
- const int idx = _mesa_add_unnamed_constant(prog->Parameters,
- vec->data, vec->count,
- allowSwizzle ? &swizzle : NULL);
-
- param_var->type = at_param;
- param_var->param_binding_type = PROGRAM_CONSTANT;
-
- if (param_var->param_binding_begin == ~0U) {
- param_var->param_binding_begin = idx;
- param_var->param_binding_swizzle = allowSwizzle ? swizzle : SWIZZLE_XYZW;
- }
- param_var->param_binding_length++;
-
- return idx;
-}
-
-
-char *
-make_error_string(const char *fmt, ...)
-{
- int length;
- char *str;
- va_list args;
-
-
- /* Call vsnprintf once to determine how large the final string is. Call it
- * again to do the actual formatting. from the vsnprintf manual page:
- *
- * Upon successful return, these functions return the number of
- * characters printed (not including the trailing '\0' used to end
- * output to strings).
- */
- va_start(args, fmt);
- length = 1 + vsnprintf(NULL, 0, fmt, args);
- va_end(args);
-
- str = malloc(length);
- if (str) {
- va_start(args, fmt);
- vsnprintf(str, length, fmt, args);
- va_end(args);
- }
-
- return str;
-}
-
-
-void
-yyerror(YYLTYPE *locp, struct asm_parser_state *state, const char *s)
-{
- char *err_str;
-
-
- err_str = make_error_string("glProgramStringARB(%s)\n", s);
- if (err_str) {
- _mesa_error(state->ctx, GL_INVALID_OPERATION, "%s", err_str);
- free(err_str);
- }
-
- err_str = make_error_string("line %u, char %u: error: %s\n",
- locp->first_line, locp->first_column, s);
- _mesa_set_program_error(state->ctx, locp->position, err_str);
-
- if (err_str) {
- free(err_str);
- }
-}
-
-
-GLboolean
-_mesa_parse_arb_program(struct gl_context *ctx, GLenum target, const GLubyte *str,
- GLsizei len, struct asm_parser_state *state)
-{
- struct asm_instruction *inst;
- unsigned i;
- GLubyte *strz;
- GLboolean result = GL_FALSE;
- void *temp;
- struct asm_symbol *sym;
-
- state->ctx = ctx;
- state->prog->Target = target;
- state->prog->Parameters = _mesa_new_parameter_list();
-
- /* Make a copy of the program string and force it to be NUL-terminated.
- */
- strz = (GLubyte *) malloc(len + 1);
- if (strz == NULL) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glProgramStringARB");
- return GL_FALSE;
- }
- memcpy (strz, str, len);
- strz[len] = '\0';
-
- state->prog->String = strz;
-
- state->st = _mesa_symbol_table_ctor();
-
- state->limits = (target == GL_VERTEX_PROGRAM_ARB)
- ? & ctx->Const.VertexProgram
- : & ctx->Const.FragmentProgram;
-
- state->MaxTextureImageUnits = ctx->Const.MaxTextureImageUnits;
- state->MaxTextureCoordUnits = ctx->Const.MaxTextureCoordUnits;
- state->MaxTextureUnits = ctx->Const.MaxTextureUnits;
- state->MaxClipPlanes = ctx->Const.MaxClipPlanes;
- state->MaxLights = ctx->Const.MaxLights;
- state->MaxProgramMatrices = ctx->Const.MaxProgramMatrices;
-
- state->state_param_enum = (target == GL_VERTEX_PROGRAM_ARB)
- ? STATE_VERTEX_PROGRAM : STATE_FRAGMENT_PROGRAM;
-
- _mesa_set_program_error(ctx, -1, NULL);
-
- _mesa_program_lexer_ctor(& state->scanner, state, (const char *) str, len);
- yyparse(state);
- _mesa_program_lexer_dtor(state->scanner);
-
-
- if (ctx->Program.ErrorPos != -1) {
- goto error;
- }
-
- if (! _mesa_layout_parameters(state)) {
- struct YYLTYPE loc;
-
- loc.first_line = 0;
- loc.first_column = 0;
- loc.position = len;
-
- yyerror(& loc, state, "invalid PARAM usage");
- goto error;
- }
-
-
-
- /* Add one instruction to store the "END" instruction.
- */
- state->prog->Instructions =
- _mesa_alloc_instructions(state->prog->NumInstructions + 1);
- inst = state->inst_head;
- for (i = 0; i < state->prog->NumInstructions; i++) {
- struct asm_instruction *const temp = inst->next;
-
- state->prog->Instructions[i] = inst->Base;
- inst = temp;
- }
-
- /* Finally, tag on an OPCODE_END instruction */
- {
- const GLuint numInst = state->prog->NumInstructions;
- _mesa_init_instructions(state->prog->Instructions + numInst, 1);
- state->prog->Instructions[numInst].Opcode = OPCODE_END;
- }
- state->prog->NumInstructions++;
-
- state->prog->NumParameters = state->prog->Parameters->NumParameters;
- state->prog->NumAttributes = _mesa_bitcount(state->prog->InputsRead);
-
- /*
- * Initialize native counts to logical counts. The device driver may
- * change them if program is translated into a hardware program.
- */
- state->prog->NumNativeInstructions = state->prog->NumInstructions;
- state->prog->NumNativeTemporaries = state->prog->NumTemporaries;
- state->prog->NumNativeParameters = state->prog->NumParameters;
- state->prog->NumNativeAttributes = state->prog->NumAttributes;
- state->prog->NumNativeAddressRegs = state->prog->NumAddressRegs;
-
- result = GL_TRUE;
-
-error:
- for (inst = state->inst_head; inst != NULL; inst = temp) {
- temp = inst->next;
- free(inst);
- }
-
- state->inst_head = NULL;
- state->inst_tail = NULL;
-
- for (sym = state->sym; sym != NULL; sym = temp) {
- temp = sym->next;
-
- free((void *) sym->name);
- free(sym);
- }
- state->sym = NULL;
-
- _mesa_symbol_table_dtor(state->st);
- state->st = NULL;
-
- return result;
-}
+%{
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * 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 (including the next
+ * paragraph) 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "main/mtypes.h"
+#include "main/imports.h"
+#include "program/program.h"
+#include "program/prog_parameter.h"
+#include "program/prog_parameter_layout.h"
+#include "program/prog_statevars.h"
+#include "program/prog_instruction.h"
+
+#include "program/symbol_table.h"
+#include "program/program_parser.h"
+
+extern void *yy_scan_string(char *);
+extern void yy_delete_buffer(void *);
+
+static struct asm_symbol *declare_variable(struct asm_parser_state *state,
+ char *name, enum asm_type t, struct YYLTYPE *locp);
+
+static int add_state_reference(struct gl_program_parameter_list *param_list,
+ const gl_state_index tokens[STATE_LENGTH]);
+
+static int initialize_symbol_from_state(struct gl_program *prog,
+ struct asm_symbol *param_var, const gl_state_index tokens[STATE_LENGTH]);
+
+static int initialize_symbol_from_param(struct gl_program *prog,
+ struct asm_symbol *param_var, const gl_state_index tokens[STATE_LENGTH]);
+
+static int initialize_symbol_from_const(struct gl_program *prog,
+ struct asm_symbol *param_var, const struct asm_vector *vec,
+ GLboolean allowSwizzle);
+
+static int yyparse(struct asm_parser_state *state);
+
+static char *make_error_string(const char *fmt, ...);
+
+static void yyerror(struct YYLTYPE *locp, struct asm_parser_state *state,
+ const char *s);
+
+static int validate_inputs(struct YYLTYPE *locp,
+ struct asm_parser_state *state);
+
+static void init_dst_reg(struct prog_dst_register *r);
+
+static void set_dst_reg(struct prog_dst_register *r,
+ gl_register_file file, GLint index);
+
+static void init_src_reg(struct asm_src_register *r);
+
+static void set_src_reg(struct asm_src_register *r,
+ gl_register_file file, GLint index);
+
+static void set_src_reg_swz(struct asm_src_register *r,
+ gl_register_file file, GLint index, GLuint swizzle);
+
+static void asm_instruction_set_operands(struct asm_instruction *inst,
+ const struct prog_dst_register *dst, const struct asm_src_register *src0,
+ const struct asm_src_register *src1, const struct asm_src_register *src2);
+
+static struct asm_instruction *asm_instruction_ctor(gl_inst_opcode op,
+ const struct prog_dst_register *dst, const struct asm_src_register *src0,
+ const struct asm_src_register *src1, const struct asm_src_register *src2);
+
+static struct asm_instruction *asm_instruction_copy_ctor(
+ const struct prog_instruction *base, const struct prog_dst_register *dst,
+ const struct asm_src_register *src0, const struct asm_src_register *src1,
+ const struct asm_src_register *src2);
+
+#ifndef FALSE
+#define FALSE 0
+#define TRUE (!FALSE)
+#endif
+
+#define YYLLOC_DEFAULT(Current, Rhs, N) \
+ do { \
+ if (YYID(N)) { \
+ (Current).first_line = YYRHSLOC(Rhs, 1).first_line; \
+ (Current).first_column = YYRHSLOC(Rhs, 1).first_column; \
+ (Current).position = YYRHSLOC(Rhs, 1).position; \
+ (Current).last_line = YYRHSLOC(Rhs, N).last_line; \
+ (Current).last_column = YYRHSLOC(Rhs, N).last_column; \
+ } else { \
+ (Current).first_line = YYRHSLOC(Rhs, 0).last_line; \
+ (Current).last_line = (Current).first_line; \
+ (Current).first_column = YYRHSLOC(Rhs, 0).last_column; \
+ (Current).last_column = (Current).first_column; \
+ (Current).position = YYRHSLOC(Rhs, 0).position \
+ + (Current).first_column; \
+ } \
+ } while(YYID(0))
+
+#define YYLEX_PARAM state->scanner
+%}
+
+%pure-parser
+%locations
+%parse-param { struct asm_parser_state *state }
+%error-verbose
+%lex-param { void *scanner }
+
+%union {
+ struct asm_instruction *inst;
+ struct asm_symbol *sym;
+ struct asm_symbol temp_sym;
+ struct asm_swizzle_mask swiz_mask;
+ struct asm_src_register src_reg;
+ struct prog_dst_register dst_reg;
+ struct prog_instruction temp_inst;
+ char *string;
+ unsigned result;
+ unsigned attrib;
+ int integer;
+ float real;
+ gl_state_index state[STATE_LENGTH];
+ int negate;
+ struct asm_vector vector;
+ gl_inst_opcode opcode;
+
+ struct {
+ unsigned swz;
+ unsigned rgba_valid:1;
+ unsigned xyzw_valid:1;
+ unsigned negate:1;
+ } ext_swizzle;
+}
+
+%token ARBvp_10 ARBfp_10
+
+/* Tokens for assembler pseudo-ops */
+%token <integer> ADDRESS
+%token ALIAS ATTRIB
+%token OPTION OUTPUT
+%token PARAM
+%token <integer> TEMP
+%token END
+
+ /* Tokens for instructions */
+%token <temp_inst> BIN_OP BINSC_OP SAMPLE_OP SCALAR_OP TRI_OP VECTOR_OP
+%token <temp_inst> ARL KIL SWZ TXD_OP
+
+%token <integer> INTEGER
+%token <real> REAL
+
+%token AMBIENT ATTENUATION
+%token BACK
+%token CLIP COLOR
+%token DEPTH DIFFUSE DIRECTION
+%token EMISSION ENV EYE
+%token FOG FOGCOORD FRAGMENT FRONT
+%token HALF
+%token INVERSE INVTRANS
+%token LIGHT LIGHTMODEL LIGHTPROD LOCAL
+%token MATERIAL MAT_PROGRAM MATRIX MATRIXINDEX MODELVIEW MVP
+%token NORMAL
+%token OBJECT
+%token PALETTE PARAMS PLANE POINT_TOK POINTSIZE POSITION PRIMARY PROGRAM PROJECTION
+%token RANGE RESULT ROW
+%token SCENECOLOR SECONDARY SHININESS SIZE_TOK SPECULAR SPOT STATE
+%token TEXCOORD TEXENV TEXGEN TEXGEN_Q TEXGEN_R TEXGEN_S TEXGEN_T TEXTURE TRANSPOSE
+%token TEXTURE_UNIT TEX_1D TEX_2D TEX_3D TEX_CUBE TEX_RECT
+%token TEX_SHADOW1D TEX_SHADOW2D TEX_SHADOWRECT
+%token TEX_ARRAY1D TEX_ARRAY2D TEX_ARRAYSHADOW1D TEX_ARRAYSHADOW2D
+%token VERTEX VTXATTRIB
+%token WEIGHT
+
+%token <string> IDENTIFIER USED_IDENTIFIER
+%type <string> string
+%token <swiz_mask> MASK4 MASK3 MASK2 MASK1 SWIZZLE
+%token DOT_DOT
+%token DOT
+
+%type <inst> instruction ALU_instruction TexInstruction
+%type <inst> ARL_instruction VECTORop_instruction
+%type <inst> SCALARop_instruction BINSCop_instruction BINop_instruction
+%type <inst> TRIop_instruction TXD_instruction SWZ_instruction SAMPLE_instruction
+%type <inst> KIL_instruction
+
+%type <dst_reg> dstReg maskedDstReg maskedAddrReg
+%type <src_reg> srcReg scalarUse scalarSrcReg swizzleSrcReg
+%type <swiz_mask> scalarSuffix swizzleSuffix extendedSwizzle
+%type <ext_swizzle> extSwizComp extSwizSel
+%type <swiz_mask> optionalMask
+
+%type <sym> progParamArray
+%type <integer> addrRegRelOffset addrRegPosOffset addrRegNegOffset
+%type <src_reg> progParamArrayMem progParamArrayAbs progParamArrayRel
+%type <sym> addrReg
+%type <swiz_mask> addrComponent addrWriteMask
+
+%type <dst_reg> ccMaskRule ccTest ccMaskRule2 ccTest2 optionalCcMask
+
+%type <result> resultBinding resultColBinding
+%type <integer> optFaceType optColorType
+%type <integer> optResultFaceType optResultColorType
+
+%type <integer> optTexImageUnitNum texImageUnitNum
+%type <integer> optTexCoordUnitNum texCoordUnitNum
+%type <integer> optLegacyTexUnitNum legacyTexUnitNum
+%type <integer> texImageUnit texTarget
+%type <integer> vtxAttribNum
+
+%type <attrib> attribBinding vtxAttribItem fragAttribItem
+
+%type <temp_sym> paramSingleInit paramSingleItemDecl
+%type <integer> optArraySize
+
+%type <state> stateSingleItem stateMultipleItem
+%type <state> stateMaterialItem
+%type <state> stateLightItem stateLightModelItem stateLightProdItem
+%type <state> stateTexGenItem stateFogItem stateClipPlaneItem statePointItem
+%type <state> stateMatrixItem stateMatrixRow stateMatrixRows
+%type <state> stateTexEnvItem stateDepthItem
+
+%type <state> stateLModProperty
+%type <state> stateMatrixName optMatrixRows
+
+%type <integer> stateMatProperty
+%type <integer> stateLightProperty stateSpotProperty
+%type <integer> stateLightNumber stateLProdProperty
+%type <integer> stateTexGenType stateTexGenCoord
+%type <integer> stateTexEnvProperty
+%type <integer> stateFogProperty
+%type <integer> stateClipPlaneNum
+%type <integer> statePointProperty
+
+%type <integer> stateOptMatModifier stateMatModifier stateMatrixRowNum
+%type <integer> stateOptModMatNum stateModMatNum statePaletteMatNum
+%type <integer> stateProgramMatNum
+
+%type <integer> ambDiffSpecProperty
+
+%type <state> programSingleItem progEnvParam progLocalParam
+%type <state> programMultipleItem progEnvParams progLocalParams
+
+%type <temp_sym> paramMultipleInit paramMultInitList paramMultipleItem
+%type <temp_sym> paramSingleItemUse
+
+%type <integer> progEnvParamNum progLocalParamNum
+%type <state> progEnvParamNums progLocalParamNums
+
+%type <vector> paramConstDecl paramConstUse
+%type <vector> paramConstScalarDecl paramConstScalarUse paramConstVector
+%type <real> signedFloatConstant
+%type <negate> optionalSign
+
+%{
+extern int yylex(YYSTYPE *yylval_param, YYLTYPE *yylloc_param,
+ void *yyscanner);
+%}
+
+%%
+
+program: language optionSequence statementSequence END
+ ;
+
+language: ARBvp_10
+ {
+ if (state->prog->Target != GL_VERTEX_PROGRAM_ARB) {
+ yyerror(& @1, state, "invalid fragment program header");
+
+ }
+ state->mode = ARB_vertex;
+ }
+ | ARBfp_10
+ {
+ if (state->prog->Target != GL_FRAGMENT_PROGRAM_ARB) {
+ yyerror(& @1, state, "invalid vertex program header");
+ }
+ state->mode = ARB_fragment;
+
+ state->option.TexRect =
+ (state->ctx->Extensions.NV_texture_rectangle != GL_FALSE);
+ }
+ ;
+
+optionSequence: optionSequence option
+ |
+ ;
+
+option: OPTION string ';'
+ {
+ int valid = 0;
+
+ if (state->mode == ARB_vertex) {
+ valid = _mesa_ARBvp_parse_option(state, $2);
+ } else if (state->mode == ARB_fragment) {
+ valid = _mesa_ARBfp_parse_option(state, $2);
+ }
+
+
+ free($2);
+
+ if (!valid) {
+ const char *const err_str = (state->mode == ARB_vertex)
+ ? "invalid ARB vertex program option"
+ : "invalid ARB fragment program option";
+
+ yyerror(& @2, state, err_str);
+ YYERROR;
+ }
+ }
+ ;
+
+statementSequence: statementSequence statement
+ |
+ ;
+
+statement: instruction ';'
+ {
+ if ($1 != NULL) {
+ if (state->inst_tail == NULL) {
+ state->inst_head = $1;
+ } else {
+ state->inst_tail->next = $1;
+ }
+
+ state->inst_tail = $1;
+ $1->next = NULL;
+
+ state->prog->NumInstructions++;
+ }
+ }
+ | namingStatement ';'
+ ;
+
+instruction: ALU_instruction
+ {
+ $$ = $1;
+ state->prog->NumAluInstructions++;
+ }
+ | TexInstruction
+ {
+ $$ = $1;
+ state->prog->NumTexInstructions++;
+ }
+ ;
+
+ALU_instruction: ARL_instruction
+ | VECTORop_instruction
+ | SCALARop_instruction
+ | BINSCop_instruction
+ | BINop_instruction
+ | TRIop_instruction
+ | SWZ_instruction
+ ;
+
+TexInstruction: SAMPLE_instruction
+ | KIL_instruction
+ | TXD_instruction
+ ;
+
+ARL_instruction: ARL maskedAddrReg ',' scalarSrcReg
+ {
+ $$ = asm_instruction_ctor(OPCODE_ARL, & $2, & $4, NULL, NULL);
+ }
+ ;
+
+VECTORop_instruction: VECTOR_OP maskedDstReg ',' swizzleSrcReg
+ {
+ $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL);
+ }
+ ;
+
+SCALARop_instruction: SCALAR_OP maskedDstReg ',' scalarSrcReg
+ {
+ $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL);
+ }
+ ;
+
+BINSCop_instruction: BINSC_OP maskedDstReg ',' scalarSrcReg ',' scalarSrcReg
+ {
+ $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, NULL);
+ }
+ ;
+
+
+BINop_instruction: BIN_OP maskedDstReg ',' swizzleSrcReg ',' swizzleSrcReg
+ {
+ $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, NULL);
+ }
+ ;
+
+TRIop_instruction: TRI_OP maskedDstReg ','
+ swizzleSrcReg ',' swizzleSrcReg ',' swizzleSrcReg
+ {
+ $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, & $8);
+ }
+ ;
+
+SAMPLE_instruction: SAMPLE_OP maskedDstReg ',' swizzleSrcReg ',' texImageUnit ',' texTarget
+ {
+ $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL);
+ if ($$ != NULL) {
+ const GLbitfield tex_mask = (1U << $6);
+ GLbitfield shadow_tex = 0;
+ GLbitfield target_mask = 0;
+
+
+ $$->Base.TexSrcUnit = $6;
+
+ if ($8 < 0) {
+ shadow_tex = tex_mask;
+
+ $$->Base.TexSrcTarget = -$8;
+ $$->Base.TexShadow = 1;
+ } else {
+ $$->Base.TexSrcTarget = $8;
+ }
+
+ target_mask = (1U << $$->Base.TexSrcTarget);
+
+ /* If this texture unit was previously accessed and that access
+ * had a different texture target, generate an error.
+ *
+ * If this texture unit was previously accessed and that access
+ * had a different shadow mode, generate an error.
+ */
+ if ((state->prog->TexturesUsed[$6] != 0)
+ && ((state->prog->TexturesUsed[$6] != target_mask)
+ || ((state->prog->ShadowSamplers & tex_mask)
+ != shadow_tex))) {
+ yyerror(& @8, state,
+ "multiple targets used on one texture image unit");
+ YYERROR;
+ }
+
+
+ state->prog->TexturesUsed[$6] |= target_mask;
+ state->prog->ShadowSamplers |= shadow_tex;
+ }
+ }
+ ;
+
+KIL_instruction: KIL swizzleSrcReg
+ {
+ $$ = asm_instruction_ctor(OPCODE_KIL, NULL, & $2, NULL, NULL);
+ state->fragment.UsesKill = 1;
+ }
+ | KIL ccTest
+ {
+ $$ = asm_instruction_ctor(OPCODE_KIL_NV, NULL, NULL, NULL, NULL);
+ $$->Base.DstReg.CondMask = $2.CondMask;
+ $$->Base.DstReg.CondSwizzle = $2.CondSwizzle;
+ $$->Base.DstReg.CondSrc = $2.CondSrc;
+ state->fragment.UsesKill = 1;
+ }
+ ;
+
+TXD_instruction: TXD_OP maskedDstReg ',' swizzleSrcReg ',' swizzleSrcReg ',' swizzleSrcReg ',' texImageUnit ',' texTarget
+ {
+ $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, & $8);
+ if ($$ != NULL) {
+ const GLbitfield tex_mask = (1U << $10);
+ GLbitfield shadow_tex = 0;
+ GLbitfield target_mask = 0;
+
+
+ $$->Base.TexSrcUnit = $10;
+
+ if ($12 < 0) {
+ shadow_tex = tex_mask;
+
+ $$->Base.TexSrcTarget = -$12;
+ $$->Base.TexShadow = 1;
+ } else {
+ $$->Base.TexSrcTarget = $12;
+ }
+
+ target_mask = (1U << $$->Base.TexSrcTarget);
+
+ /* If this texture unit was previously accessed and that access
+ * had a different texture target, generate an error.
+ *
+ * If this texture unit was previously accessed and that access
+ * had a different shadow mode, generate an error.
+ */
+ if ((state->prog->TexturesUsed[$10] != 0)
+ && ((state->prog->TexturesUsed[$10] != target_mask)
+ || ((state->prog->ShadowSamplers & tex_mask)
+ != shadow_tex))) {
+ yyerror(& @12, state,
+ "multiple targets used on one texture image unit");
+ YYERROR;
+ }
+
+
+ state->prog->TexturesUsed[$10] |= target_mask;
+ state->prog->ShadowSamplers |= shadow_tex;
+ }
+ }
+ ;
+
+texImageUnit: TEXTURE_UNIT optTexImageUnitNum
+ {
+ $$ = $2;
+ }
+ ;
+
+texTarget: TEX_1D { $$ = TEXTURE_1D_INDEX; }
+ | TEX_2D { $$ = TEXTURE_2D_INDEX; }
+ | TEX_3D { $$ = TEXTURE_3D_INDEX; }
+ | TEX_CUBE { $$ = TEXTURE_CUBE_INDEX; }
+ | TEX_RECT { $$ = TEXTURE_RECT_INDEX; }
+ | TEX_SHADOW1D { $$ = -TEXTURE_1D_INDEX; }
+ | TEX_SHADOW2D { $$ = -TEXTURE_2D_INDEX; }
+ | TEX_SHADOWRECT { $$ = -TEXTURE_RECT_INDEX; }
+ | TEX_ARRAY1D { $$ = TEXTURE_1D_ARRAY_INDEX; }
+ | TEX_ARRAY2D { $$ = TEXTURE_2D_ARRAY_INDEX; }
+ | TEX_ARRAYSHADOW1D { $$ = -TEXTURE_1D_ARRAY_INDEX; }
+ | TEX_ARRAYSHADOW2D { $$ = -TEXTURE_2D_ARRAY_INDEX; }
+ ;
+
+SWZ_instruction: SWZ maskedDstReg ',' srcReg ',' extendedSwizzle
+ {
+ /* FIXME: Is this correct? Should the extenedSwizzle be applied
+ * FIXME: to the existing swizzle?
+ */
+ $4.Base.Swizzle = $6.swizzle;
+ $4.Base.Negate = $6.mask;
+
+ $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL);
+ }
+ ;
+
+scalarSrcReg: optionalSign scalarUse
+ {
+ $$ = $2;
+
+ if ($1) {
+ $$.Base.Negate = ~$$.Base.Negate;
+ }
+ }
+ | optionalSign '|' scalarUse '|'
+ {
+ $$ = $3;
+
+ if (!state->option.NV_fragment) {
+ yyerror(& @2, state, "unexpected character '|'");
+ YYERROR;
+ }
+
+ if ($1) {
+ $$.Base.Negate = ~$$.Base.Negate;
+ }
+
+ $$.Base.Abs = 1;
+ }
+ ;
+
+scalarUse: srcReg scalarSuffix
+ {
+ $$ = $1;
+
+ $$.Base.Swizzle = _mesa_combine_swizzles($$.Base.Swizzle,
+ $2.swizzle);
+ }
+ | paramConstScalarUse
+ {
+ struct asm_symbol temp_sym;
+
+ if (!state->option.NV_fragment) {
+ yyerror(& @1, state, "expected scalar suffix");
+ YYERROR;
+ }
+
+ memset(& temp_sym, 0, sizeof(temp_sym));
+ temp_sym.param_binding_begin = ~0;
+ initialize_symbol_from_const(state->prog, & temp_sym, & $1, GL_TRUE);
+
+ set_src_reg_swz(& $$, PROGRAM_CONSTANT,
+ temp_sym.param_binding_begin,
+ temp_sym.param_binding_swizzle);
+ }
+ ;
+
+swizzleSrcReg: optionalSign srcReg swizzleSuffix
+ {
+ $$ = $2;
+
+ if ($1) {
+ $$.Base.Negate = ~$$.Base.Negate;
+ }
+
+ $$.Base.Swizzle = _mesa_combine_swizzles($$.Base.Swizzle,
+ $3.swizzle);
+ }
+ | optionalSign '|' srcReg swizzleSuffix '|'
+ {
+ $$ = $3;
+
+ if (!state->option.NV_fragment) {
+ yyerror(& @2, state, "unexpected character '|'");
+ YYERROR;
+ }
+
+ if ($1) {
+ $$.Base.Negate = ~$$.Base.Negate;
+ }
+
+ $$.Base.Abs = 1;
+ $$.Base.Swizzle = _mesa_combine_swizzles($$.Base.Swizzle,
+ $4.swizzle);
+ }
+
+ ;
+
+maskedDstReg: dstReg optionalMask optionalCcMask
+ {
+ $$ = $1;
+ $$.WriteMask = $2.mask;
+ $$.CondMask = $3.CondMask;
+ $$.CondSwizzle = $3.CondSwizzle;
+ $$.CondSrc = $3.CondSrc;
+
+ if ($$.File == PROGRAM_OUTPUT) {
+ /* Technically speaking, this should check that it is in
+ * vertex program mode. However, PositionInvariant can never be
+ * set in fragment program mode, so it is somewhat irrelevant.
+ */
+ if (state->option.PositionInvariant
+ && ($$.Index == VERT_RESULT_HPOS)) {
+ yyerror(& @1, state, "position-invariant programs cannot "
+ "write position");
+ YYERROR;
+ }
+
+ state->prog->OutputsWritten |= BITFIELD64_BIT($$.Index);
+ }
+ }
+ ;
+
+maskedAddrReg: addrReg addrWriteMask
+ {
+ set_dst_reg(& $$, PROGRAM_ADDRESS, 0);
+ $$.WriteMask = $2.mask;
+ }
+ ;
+
+extendedSwizzle: extSwizComp ',' extSwizComp ',' extSwizComp ',' extSwizComp
+ {
+ const unsigned xyzw_valid =
+ ($1.xyzw_valid << 0)
+ | ($3.xyzw_valid << 1)
+ | ($5.xyzw_valid << 2)
+ | ($7.xyzw_valid << 3);
+ const unsigned rgba_valid =
+ ($1.rgba_valid << 0)
+ | ($3.rgba_valid << 1)
+ | ($5.rgba_valid << 2)
+ | ($7.rgba_valid << 3);
+
+ /* All of the swizzle components have to be valid in either RGBA
+ * or XYZW. Note that 0 and 1 are valid in both, so both masks
+ * can have some bits set.
+ *
+ * We somewhat deviate from the spec here. It would be really hard
+ * to figure out which component is the error, and there probably
+ * isn't a lot of benefit.
+ */
+ if ((rgba_valid != 0x0f) && (xyzw_valid != 0x0f)) {
+ yyerror(& @1, state, "cannot combine RGBA and XYZW swizzle "
+ "components");
+ YYERROR;
+ }
+
+ $$.swizzle = MAKE_SWIZZLE4($1.swz, $3.swz, $5.swz, $7.swz);
+ $$.mask = ($1.negate) | ($3.negate << 1) | ($5.negate << 2)
+ | ($7.negate << 3);
+ }
+ ;
+
+extSwizComp: optionalSign extSwizSel
+ {
+ $$ = $2;
+ $$.negate = ($1) ? 1 : 0;
+ }
+ ;
+
+extSwizSel: INTEGER
+ {
+ if (($1 != 0) && ($1 != 1)) {
+ yyerror(& @1, state, "invalid extended swizzle selector");
+ YYERROR;
+ }
+
+ $$.swz = ($1 == 0) ? SWIZZLE_ZERO : SWIZZLE_ONE;
+
+ /* 0 and 1 are valid for both RGBA swizzle names and XYZW
+ * swizzle names.
+ */
+ $$.xyzw_valid = 1;
+ $$.rgba_valid = 1;
+ }
+ | string
+ {
+ char s;
+
+ if (strlen($1) > 1) {
+ yyerror(& @1, state, "invalid extended swizzle selector");
+ YYERROR;
+ }
+
+ s = $1[0];
+ free($1);
+
+ switch (s) {
+ case 'x':
+ $$.swz = SWIZZLE_X;
+ $$.xyzw_valid = 1;
+ break;
+ case 'y':
+ $$.swz = SWIZZLE_Y;
+ $$.xyzw_valid = 1;
+ break;
+ case 'z':
+ $$.swz = SWIZZLE_Z;
+ $$.xyzw_valid = 1;
+ break;
+ case 'w':
+ $$.swz = SWIZZLE_W;
+ $$.xyzw_valid = 1;
+ break;
+
+ case 'r':
+ $$.swz = SWIZZLE_X;
+ $$.rgba_valid = 1;
+ break;
+ case 'g':
+ $$.swz = SWIZZLE_Y;
+ $$.rgba_valid = 1;
+ break;
+ case 'b':
+ $$.swz = SWIZZLE_Z;
+ $$.rgba_valid = 1;
+ break;
+ case 'a':
+ $$.swz = SWIZZLE_W;
+ $$.rgba_valid = 1;
+ break;
+
+ default:
+ yyerror(& @1, state, "invalid extended swizzle selector");
+ YYERROR;
+ break;
+ }
+ }
+ ;
+
+srcReg: USED_IDENTIFIER /* temporaryReg | progParamSingle */
+ {
+ struct asm_symbol *const s = (struct asm_symbol *)
+ _mesa_symbol_table_find_symbol(state->st, 0, $1);
+
+ free($1);
+
+ if (s == NULL) {
+ yyerror(& @1, state, "invalid operand variable");
+ YYERROR;
+ } else if ((s->type != at_param) && (s->type != at_temp)
+ && (s->type != at_attrib)) {
+ yyerror(& @1, state, "invalid operand variable");
+ YYERROR;
+ } else if ((s->type == at_param) && s->param_is_array) {
+ yyerror(& @1, state, "non-array access to array PARAM");
+ YYERROR;
+ }
+
+ init_src_reg(& $$);
+ switch (s->type) {
+ case at_temp:
+ set_src_reg(& $$, PROGRAM_TEMPORARY, s->temp_binding);
+ break;
+ case at_param:
+ set_src_reg_swz(& $$, s->param_binding_type,
+ s->param_binding_begin,
+ s->param_binding_swizzle);
+ break;
+ case at_attrib:
+ set_src_reg(& $$, PROGRAM_INPUT, s->attrib_binding);
+ state->prog->InputsRead |= (1U << $$.Base.Index);
+
+ if (!validate_inputs(& @1, state)) {
+ YYERROR;
+ }
+ break;
+
+ default:
+ YYERROR;
+ break;
+ }
+ }
+ | attribBinding
+ {
+ set_src_reg(& $$, PROGRAM_INPUT, $1);
+ state->prog->InputsRead |= (1U << $$.Base.Index);
+
+ if (!validate_inputs(& @1, state)) {
+ YYERROR;
+ }
+ }
+ | progParamArray '[' progParamArrayMem ']'
+ {
+ if (! $3.Base.RelAddr
+ && ((unsigned) $3.Base.Index >= $1->param_binding_length)) {
+ yyerror(& @3, state, "out of bounds array access");
+ YYERROR;
+ }
+
+ init_src_reg(& $$);
+ $$.Base.File = $1->param_binding_type;
+
+ if ($3.Base.RelAddr) {
+ state->prog->IndirectRegisterFiles |= (1 << $$.Base.File);
+ $1->param_accessed_indirectly = 1;
+
+ $$.Base.RelAddr = 1;
+ $$.Base.Index = $3.Base.Index;
+ $$.Symbol = $1;
+ } else {
+ $$.Base.Index = $1->param_binding_begin + $3.Base.Index;
+ }
+ }
+ | paramSingleItemUse
+ {
+ gl_register_file file = ($1.name != NULL)
+ ? $1.param_binding_type
+ : PROGRAM_CONSTANT;
+ set_src_reg_swz(& $$, file, $1.param_binding_begin,
+ $1.param_binding_swizzle);
+ }
+ ;
+
+dstReg: resultBinding
+ {
+ set_dst_reg(& $$, PROGRAM_OUTPUT, $1);
+ }
+ | USED_IDENTIFIER /* temporaryReg | vertexResultReg */
+ {
+ struct asm_symbol *const s = (struct asm_symbol *)
+ _mesa_symbol_table_find_symbol(state->st, 0, $1);
+
+ free($1);
+
+ if (s == NULL) {
+ yyerror(& @1, state, "invalid operand variable");
+ YYERROR;
+ } else if ((s->type != at_output) && (s->type != at_temp)) {
+ yyerror(& @1, state, "invalid operand variable");
+ YYERROR;
+ }
+
+ switch (s->type) {
+ case at_temp:
+ set_dst_reg(& $$, PROGRAM_TEMPORARY, s->temp_binding);
+ break;
+ case at_output:
+ set_dst_reg(& $$, PROGRAM_OUTPUT, s->output_binding);
+ break;
+ default:
+ set_dst_reg(& $$, s->param_binding_type, s->param_binding_begin);
+ break;
+ }
+ }
+ ;
+
+progParamArray: USED_IDENTIFIER
+ {
+ struct asm_symbol *const s = (struct asm_symbol *)
+ _mesa_symbol_table_find_symbol(state->st, 0, $1);
+
+ free($1);
+
+ if (s == NULL) {
+ yyerror(& @1, state, "invalid operand variable");
+ YYERROR;
+ } else if ((s->type != at_param) || !s->param_is_array) {
+ yyerror(& @1, state, "array access to non-PARAM variable");
+ YYERROR;
+ } else {
+ $$ = s;
+ }
+ }
+ ;
+
+progParamArrayMem: progParamArrayAbs | progParamArrayRel;
+
+progParamArrayAbs: INTEGER
+ {
+ init_src_reg(& $$);
+ $$.Base.Index = $1;
+ }
+ ;
+
+progParamArrayRel: addrReg addrComponent addrRegRelOffset
+ {
+ /* FINISHME: Add support for multiple address registers.
+ */
+ /* FINISHME: Add support for 4-component address registers.
+ */
+ init_src_reg(& $$);
+ $$.Base.RelAddr = 1;
+ $$.Base.Index = $3;
+ }
+ ;
+
+addrRegRelOffset: { $$ = 0; }
+ | '+' addrRegPosOffset { $$ = $2; }
+ | '-' addrRegNegOffset { $$ = -$2; }
+ ;
+
+addrRegPosOffset: INTEGER
+ {
+ if (($1 < 0) || ($1 > (state->limits->MaxAddressOffset - 1))) {
+ char s[100];
+ _mesa_snprintf(s, sizeof(s),
+ "relative address offset too large (%d)", $1);
+ yyerror(& @1, state, s);
+ YYERROR;
+ } else {
+ $$ = $1;
+ }
+ }
+ ;
+
+addrRegNegOffset: INTEGER
+ {
+ if (($1 < 0) || ($1 > state->limits->MaxAddressOffset)) {
+ char s[100];
+ _mesa_snprintf(s, sizeof(s),
+ "relative address offset too large (%d)", $1);
+ yyerror(& @1, state, s);
+ YYERROR;
+ } else {
+ $$ = $1;
+ }
+ }
+ ;
+
+addrReg: USED_IDENTIFIER
+ {
+ struct asm_symbol *const s = (struct asm_symbol *)
+ _mesa_symbol_table_find_symbol(state->st, 0, $1);
+
+ free($1);
+
+ if (s == NULL) {
+ yyerror(& @1, state, "invalid array member");
+ YYERROR;
+ } else if (s->type != at_address) {
+ yyerror(& @1, state,
+ "invalid variable for indexed array access");
+ YYERROR;
+ } else {
+ $$ = s;
+ }
+ }
+ ;
+
+addrComponent: MASK1
+ {
+ if ($1.mask != WRITEMASK_X) {
+ yyerror(& @1, state, "invalid address component selector");
+ YYERROR;
+ } else {
+ $$ = $1;
+ }
+ }
+ ;
+
+addrWriteMask: MASK1
+ {
+ if ($1.mask != WRITEMASK_X) {
+ yyerror(& @1, state,
+ "address register write mask must be \".x\"");
+ YYERROR;
+ } else {
+ $$ = $1;
+ }
+ }
+ ;
+
+scalarSuffix: MASK1;
+
+swizzleSuffix: MASK1
+ | MASK4
+ | SWIZZLE
+ | { $$.swizzle = SWIZZLE_NOOP; $$.mask = WRITEMASK_XYZW; }
+ ;
+
+optionalMask: MASK4 | MASK3 | MASK2 | MASK1
+ | { $$.swizzle = SWIZZLE_NOOP; $$.mask = WRITEMASK_XYZW; }
+ ;
+
+optionalCcMask: '(' ccTest ')'
+ {
+ $$ = $2;
+ }
+ | '(' ccTest2 ')'
+ {
+ $$ = $2;
+ }
+ |
+ {
+ $$.CondMask = COND_TR;
+ $$.CondSwizzle = SWIZZLE_NOOP;
+ $$.CondSrc = 0;
+ }
+ ;
+
+ccTest: ccMaskRule swizzleSuffix
+ {
+ $$ = $1;
+ $$.CondSwizzle = $2.swizzle;
+ }
+ ;
+
+ccTest2: ccMaskRule2 swizzleSuffix
+ {
+ $$ = $1;
+ $$.CondSwizzle = $2.swizzle;
+ }
+ ;
+
+ccMaskRule: IDENTIFIER
+ {
+ const int cond = _mesa_parse_cc($1);
+ if ((cond == 0) || ($1[2] != '\0')) {
+ char *const err_str =
+ make_error_string("invalid condition code \"%s\"", $1);
+
+ yyerror(& @1, state, (err_str != NULL)
+ ? err_str : "invalid condition code");
+
+ if (err_str != NULL) {
+ free(err_str);
+ }
+
+ YYERROR;
+ }
+
+ $$.CondMask = cond;
+ $$.CondSwizzle = SWIZZLE_NOOP;
+ $$.CondSrc = 0;
+ }
+ ;
+
+ccMaskRule2: USED_IDENTIFIER
+ {
+ const int cond = _mesa_parse_cc($1);
+ if ((cond == 0) || ($1[2] != '\0')) {
+ char *const err_str =
+ make_error_string("invalid condition code \"%s\"", $1);
+
+ yyerror(& @1, state, (err_str != NULL)
+ ? err_str : "invalid condition code");
+
+ if (err_str != NULL) {
+ free(err_str);
+ }
+
+ YYERROR;
+ }
+
+ $$.CondMask = cond;
+ $$.CondSwizzle = SWIZZLE_NOOP;
+ $$.CondSrc = 0;
+ }
+ ;
+
+namingStatement: ATTRIB_statement
+ | PARAM_statement
+ | TEMP_statement
+ | ADDRESS_statement
+ | OUTPUT_statement
+ | ALIAS_statement
+ ;
+
+ATTRIB_statement: ATTRIB IDENTIFIER '=' attribBinding
+ {
+ struct asm_symbol *const s =
+ declare_variable(state, $2, at_attrib, & @2);
+
+ if (s == NULL) {
+ free($2);
+ YYERROR;
+ } else {
+ s->attrib_binding = $4;
+ state->InputsBound |= (1U << s->attrib_binding);
+
+ if (!validate_inputs(& @4, state)) {
+ YYERROR;
+ }
+ }
+ }
+ ;
+
+attribBinding: VERTEX vtxAttribItem
+ {
+ $$ = $2;
+ }
+ | FRAGMENT fragAttribItem
+ {
+ $$ = $2;
+ }
+ ;
+
+vtxAttribItem: POSITION
+ {
+ $$ = VERT_ATTRIB_POS;
+ }
+ | WEIGHT vtxOptWeightNum
+ {
+ $$ = VERT_ATTRIB_WEIGHT;
+ }
+ | NORMAL
+ {
+ $$ = VERT_ATTRIB_NORMAL;
+ }
+ | COLOR optColorType
+ {
+ if (!state->ctx->Extensions.EXT_secondary_color) {
+ yyerror(& @2, state, "GL_EXT_secondary_color not supported");
+ YYERROR;
+ }
+
+ $$ = VERT_ATTRIB_COLOR0 + $2;
+ }
+ | FOGCOORD
+ {
+ if (!state->ctx->Extensions.EXT_fog_coord) {
+ yyerror(& @1, state, "GL_EXT_fog_coord not supported");
+ YYERROR;
+ }
+
+ $$ = VERT_ATTRIB_FOG;
+ }
+ | TEXCOORD optTexCoordUnitNum
+ {
+ $$ = VERT_ATTRIB_TEX0 + $2;
+ }
+ | MATRIXINDEX '[' vtxWeightNum ']'
+ {
+ yyerror(& @1, state, "GL_ARB_matrix_palette not supported");
+ YYERROR;
+ }
+ | VTXATTRIB '[' vtxAttribNum ']'
+ {
+ $$ = VERT_ATTRIB_GENERIC0 + $3;
+ }
+ ;
+
+vtxAttribNum: INTEGER
+ {
+ if ((unsigned) $1 >= state->limits->MaxAttribs) {
+ yyerror(& @1, state, "invalid vertex attribute reference");
+ YYERROR;
+ }
+
+ $$ = $1;
+ }
+ ;
+
+vtxOptWeightNum: | '[' vtxWeightNum ']';
+vtxWeightNum: INTEGER;
+
+fragAttribItem: POSITION
+ {
+ $$ = FRAG_ATTRIB_WPOS;
+ }
+ | COLOR optColorType
+ {
+ $$ = FRAG_ATTRIB_COL0 + $2;
+ }
+ | FOGCOORD
+ {
+ $$ = FRAG_ATTRIB_FOGC;
+ }
+ | TEXCOORD optTexCoordUnitNum
+ {
+ $$ = FRAG_ATTRIB_TEX0 + $2;
+ }
+ ;
+
+PARAM_statement: PARAM_singleStmt | PARAM_multipleStmt;
+
+PARAM_singleStmt: PARAM IDENTIFIER paramSingleInit
+ {
+ struct asm_symbol *const s =
+ declare_variable(state, $2, at_param, & @2);
+
+ if (s == NULL) {
+ free($2);
+ YYERROR;
+ } else {
+ s->param_binding_type = $3.param_binding_type;
+ s->param_binding_begin = $3.param_binding_begin;
+ s->param_binding_length = $3.param_binding_length;
+ s->param_binding_swizzle = $3.param_binding_swizzle;
+ s->param_is_array = 0;
+ }
+ }
+ ;
+
+PARAM_multipleStmt: PARAM IDENTIFIER '[' optArraySize ']' paramMultipleInit
+ {
+ if (($4 != 0) && ((unsigned) $4 != $6.param_binding_length)) {
+ free($2);
+ yyerror(& @4, state,
+ "parameter array size and number of bindings must match");
+ YYERROR;
+ } else {
+ struct asm_symbol *const s =
+ declare_variable(state, $2, $6.type, & @2);
+
+ if (s == NULL) {
+ free($2);
+ YYERROR;
+ } else {
+ s->param_binding_type = $6.param_binding_type;
+ s->param_binding_begin = $6.param_binding_begin;
+ s->param_binding_length = $6.param_binding_length;
+ s->param_binding_swizzle = SWIZZLE_XYZW;
+ s->param_is_array = 1;
+ }
+ }
+ }
+ ;
+
+optArraySize:
+ {
+ $$ = 0;
+ }
+ | INTEGER
+ {
+ if (($1 < 1) || ((unsigned) $1 > state->limits->MaxParameters)) {
+ yyerror(& @1, state, "invalid parameter array size");
+ YYERROR;
+ } else {
+ $$ = $1;
+ }
+ }
+ ;
+
+paramSingleInit: '=' paramSingleItemDecl
+ {
+ $$ = $2;
+ }
+ ;
+
+paramMultipleInit: '=' '{' paramMultInitList '}'
+ {
+ $$ = $3;
+ }
+ ;
+
+paramMultInitList: paramMultipleItem
+ | paramMultInitList ',' paramMultipleItem
+ {
+ $1.param_binding_length += $3.param_binding_length;
+ $$ = $1;
+ }
+ ;
+
+paramSingleItemDecl: stateSingleItem
+ {
+ memset(& $$, 0, sizeof($$));
+ $$.param_binding_begin = ~0;
+ initialize_symbol_from_state(state->prog, & $$, $1);
+ }
+ | programSingleItem
+ {
+ memset(& $$, 0, sizeof($$));
+ $$.param_binding_begin = ~0;
+ initialize_symbol_from_param(state->prog, & $$, $1);
+ }
+ | paramConstDecl
+ {
+ memset(& $$, 0, sizeof($$));
+ $$.param_binding_begin = ~0;
+ initialize_symbol_from_const(state->prog, & $$, & $1, GL_TRUE);
+ }
+ ;
+
+paramSingleItemUse: stateSingleItem
+ {
+ memset(& $$, 0, sizeof($$));
+ $$.param_binding_begin = ~0;
+ initialize_symbol_from_state(state->prog, & $$, $1);
+ }
+ | programSingleItem
+ {
+ memset(& $$, 0, sizeof($$));
+ $$.param_binding_begin = ~0;
+ initialize_symbol_from_param(state->prog, & $$, $1);
+ }
+ | paramConstUse
+ {
+ memset(& $$, 0, sizeof($$));
+ $$.param_binding_begin = ~0;
+ initialize_symbol_from_const(state->prog, & $$, & $1, GL_TRUE);
+ }
+ ;
+
+paramMultipleItem: stateMultipleItem
+ {
+ memset(& $$, 0, sizeof($$));
+ $$.param_binding_begin = ~0;
+ initialize_symbol_from_state(state->prog, & $$, $1);
+ }
+ | programMultipleItem
+ {
+ memset(& $$, 0, sizeof($$));
+ $$.param_binding_begin = ~0;
+ initialize_symbol_from_param(state->prog, & $$, $1);
+ }
+ | paramConstDecl
+ {
+ memset(& $$, 0, sizeof($$));
+ $$.param_binding_begin = ~0;
+ initialize_symbol_from_const(state->prog, & $$, & $1, GL_FALSE);
+ }
+ ;
+
+stateMultipleItem: stateSingleItem { memcpy($$, $1, sizeof($$)); }
+ | STATE stateMatrixRows { memcpy($$, $2, sizeof($$)); }
+ ;
+
+stateSingleItem: STATE stateMaterialItem { memcpy($$, $2, sizeof($$)); }
+ | STATE stateLightItem { memcpy($$, $2, sizeof($$)); }
+ | STATE stateLightModelItem { memcpy($$, $2, sizeof($$)); }
+ | STATE stateLightProdItem { memcpy($$, $2, sizeof($$)); }
+ | STATE stateTexGenItem { memcpy($$, $2, sizeof($$)); }
+ | STATE stateTexEnvItem { memcpy($$, $2, sizeof($$)); }
+ | STATE stateFogItem { memcpy($$, $2, sizeof($$)); }
+ | STATE stateClipPlaneItem { memcpy($$, $2, sizeof($$)); }
+ | STATE statePointItem { memcpy($$, $2, sizeof($$)); }
+ | STATE stateMatrixRow { memcpy($$, $2, sizeof($$)); }
+ | STATE stateDepthItem { memcpy($$, $2, sizeof($$)); }
+ ;
+
+stateMaterialItem: MATERIAL optFaceType stateMatProperty
+ {
+ memset($$, 0, sizeof($$));
+ $$[0] = STATE_MATERIAL;
+ $$[1] = $2;
+ $$[2] = $3;
+ }
+ ;
+
+stateMatProperty: ambDiffSpecProperty
+ {
+ $$ = $1;
+ }
+ | EMISSION
+ {
+ $$ = STATE_EMISSION;
+ }
+ | SHININESS
+ {
+ $$ = STATE_SHININESS;
+ }
+ ;
+
+stateLightItem: LIGHT '[' stateLightNumber ']' stateLightProperty
+ {
+ memset($$, 0, sizeof($$));
+ $$[0] = STATE_LIGHT;
+ $$[1] = $3;
+ $$[2] = $5;
+ }
+ ;
+
+stateLightProperty: ambDiffSpecProperty
+ {
+ $$ = $1;
+ }
+ | POSITION
+ {
+ $$ = STATE_POSITION;
+ }
+ | ATTENUATION
+ {
+ if (!state->ctx->Extensions.EXT_point_parameters) {
+ yyerror(& @1, state, "GL_ARB_point_parameters not supported");
+ YYERROR;
+ }
+
+ $$ = STATE_ATTENUATION;
+ }
+ | SPOT stateSpotProperty
+ {
+ $$ = $2;
+ }
+ | HALF
+ {
+ $$ = STATE_HALF_VECTOR;
+ }
+ ;
+
+stateSpotProperty: DIRECTION
+ {
+ $$ = STATE_SPOT_DIRECTION;
+ }
+ ;
+
+stateLightModelItem: LIGHTMODEL stateLModProperty
+ {
+ $$[0] = $2[0];
+ $$[1] = $2[1];
+ }
+ ;
+
+stateLModProperty: AMBIENT
+ {
+ memset($$, 0, sizeof($$));
+ $$[0] = STATE_LIGHTMODEL_AMBIENT;
+ }
+ | optFaceType SCENECOLOR
+ {
+ memset($$, 0, sizeof($$));
+ $$[0] = STATE_LIGHTMODEL_SCENECOLOR;
+ $$[1] = $1;
+ }
+ ;
+
+stateLightProdItem: LIGHTPROD '[' stateLightNumber ']' optFaceType stateLProdProperty
+ {
+ memset($$, 0, sizeof($$));
+ $$[0] = STATE_LIGHTPROD;
+ $$[1] = $3;
+ $$[2] = $5;
+ $$[3] = $6;
+ }
+ ;
+
+stateLProdProperty: ambDiffSpecProperty;
+
+stateTexEnvItem: TEXENV optLegacyTexUnitNum stateTexEnvProperty
+ {
+ memset($$, 0, sizeof($$));
+ $$[0] = $3;
+ $$[1] = $2;
+ }
+ ;
+
+stateTexEnvProperty: COLOR
+ {
+ $$ = STATE_TEXENV_COLOR;
+ }
+ ;
+
+ambDiffSpecProperty: AMBIENT
+ {
+ $$ = STATE_AMBIENT;
+ }
+ | DIFFUSE
+ {
+ $$ = STATE_DIFFUSE;
+ }
+ | SPECULAR
+ {
+ $$ = STATE_SPECULAR;
+ }
+ ;
+
+stateLightNumber: INTEGER
+ {
+ if ((unsigned) $1 >= state->MaxLights) {
+ yyerror(& @1, state, "invalid light selector");
+ YYERROR;
+ }
+
+ $$ = $1;
+ }
+ ;
+
+stateTexGenItem: TEXGEN optTexCoordUnitNum stateTexGenType stateTexGenCoord
+ {
+ memset($$, 0, sizeof($$));
+ $$[0] = STATE_TEXGEN;
+ $$[1] = $2;
+ $$[2] = $3 + $4;
+ }
+ ;
+
+stateTexGenType: EYE
+ {
+ $$ = STATE_TEXGEN_EYE_S;
+ }
+ | OBJECT
+ {
+ $$ = STATE_TEXGEN_OBJECT_S;
+ }
+ ;
+stateTexGenCoord: TEXGEN_S
+ {
+ $$ = STATE_TEXGEN_EYE_S - STATE_TEXGEN_EYE_S;
+ }
+ | TEXGEN_T
+ {
+ $$ = STATE_TEXGEN_EYE_T - STATE_TEXGEN_EYE_S;
+ }
+ | TEXGEN_R
+ {
+ $$ = STATE_TEXGEN_EYE_R - STATE_TEXGEN_EYE_S;
+ }
+ | TEXGEN_Q
+ {
+ $$ = STATE_TEXGEN_EYE_Q - STATE_TEXGEN_EYE_S;
+ }
+ ;
+
+stateFogItem: FOG stateFogProperty
+ {
+ memset($$, 0, sizeof($$));
+ $$[0] = $2;
+ }
+ ;
+
+stateFogProperty: COLOR
+ {
+ $$ = STATE_FOG_COLOR;
+ }
+ | PARAMS
+ {
+ $$ = STATE_FOG_PARAMS;
+ }
+ ;
+
+stateClipPlaneItem: CLIP '[' stateClipPlaneNum ']' PLANE
+ {
+ memset($$, 0, sizeof($$));
+ $$[0] = STATE_CLIPPLANE;
+ $$[1] = $3;
+ }
+ ;
+
+stateClipPlaneNum: INTEGER
+ {
+ if ((unsigned) $1 >= state->MaxClipPlanes) {
+ yyerror(& @1, state, "invalid clip plane selector");
+ YYERROR;
+ }
+
+ $$ = $1;
+ }
+ ;
+
+statePointItem: POINT_TOK statePointProperty
+ {
+ memset($$, 0, sizeof($$));
+ $$[0] = $2;
+ }
+ ;
+
+statePointProperty: SIZE_TOK
+ {
+ $$ = STATE_POINT_SIZE;
+ }
+ | ATTENUATION
+ {
+ $$ = STATE_POINT_ATTENUATION;
+ }
+ ;
+
+stateMatrixRow: stateMatrixItem ROW '[' stateMatrixRowNum ']'
+ {
+ $$[0] = $1[0];
+ $$[1] = $1[1];
+ $$[2] = $4;
+ $$[3] = $4;
+ $$[4] = $1[2];
+ }
+ ;
+
+stateMatrixRows: stateMatrixItem optMatrixRows
+ {
+ $$[0] = $1[0];
+ $$[1] = $1[1];
+ $$[2] = $2[2];
+ $$[3] = $2[3];
+ $$[4] = $1[2];
+ }
+ ;
+
+optMatrixRows:
+ {
+ $$[2] = 0;
+ $$[3] = 3;
+ }
+ | ROW '[' stateMatrixRowNum DOT_DOT stateMatrixRowNum ']'
+ {
+ /* It seems logical that the matrix row range specifier would have
+ * to specify a range or more than one row (i.e., $5 > $3).
+ * However, the ARB_vertex_program spec says "a program will fail
+ * to load if <a> is greater than <b>." This means that $3 == $5
+ * is valid.
+ */
+ if ($3 > $5) {
+ yyerror(& @3, state, "invalid matrix row range");
+ YYERROR;
+ }
+
+ $$[2] = $3;
+ $$[3] = $5;
+ }
+ ;
+
+stateMatrixItem: MATRIX stateMatrixName stateOptMatModifier
+ {
+ $$[0] = $2[0];
+ $$[1] = $2[1];
+ $$[2] = $3;
+ }
+ ;
+
+stateOptMatModifier:
+ {
+ $$ = 0;
+ }
+ | stateMatModifier
+ {
+ $$ = $1;
+ }
+ ;
+
+stateMatModifier: INVERSE
+ {
+ $$ = STATE_MATRIX_INVERSE;
+ }
+ | TRANSPOSE
+ {
+ $$ = STATE_MATRIX_TRANSPOSE;
+ }
+ | INVTRANS
+ {
+ $$ = STATE_MATRIX_INVTRANS;
+ }
+ ;
+
+stateMatrixRowNum: INTEGER
+ {
+ if ($1 > 3) {
+ yyerror(& @1, state, "invalid matrix row reference");
+ YYERROR;
+ }
+
+ $$ = $1;
+ }
+ ;
+
+stateMatrixName: MODELVIEW stateOptModMatNum
+ {
+ $$[0] = STATE_MODELVIEW_MATRIX;
+ $$[1] = $2;
+ }
+ | PROJECTION
+ {
+ $$[0] = STATE_PROJECTION_MATRIX;
+ $$[1] = 0;
+ }
+ | MVP
+ {
+ $$[0] = STATE_MVP_MATRIX;
+ $$[1] = 0;
+ }
+ | TEXTURE optTexCoordUnitNum
+ {
+ $$[0] = STATE_TEXTURE_MATRIX;
+ $$[1] = $2;
+ }
+ | PALETTE '[' statePaletteMatNum ']'
+ {
+ yyerror(& @1, state, "GL_ARB_matrix_palette not supported");
+ YYERROR;
+ }
+ | MAT_PROGRAM '[' stateProgramMatNum ']'
+ {
+ $$[0] = STATE_PROGRAM_MATRIX;
+ $$[1] = $3;
+ }
+ ;
+
+stateOptModMatNum:
+ {
+ $$ = 0;
+ }
+ | '[' stateModMatNum ']'
+ {
+ $$ = $2;
+ }
+ ;
+stateModMatNum: INTEGER
+ {
+ /* Since GL_ARB_vertex_blend isn't supported, only modelview matrix
+ * zero is valid.
+ */
+ if ($1 != 0) {
+ yyerror(& @1, state, "invalid modelview matrix index");
+ YYERROR;
+ }
+
+ $$ = $1;
+ }
+ ;
+statePaletteMatNum: INTEGER
+ {
+ /* Since GL_ARB_matrix_palette isn't supported, just let any value
+ * through here. The error will be generated later.
+ */
+ $$ = $1;
+ }
+ ;
+stateProgramMatNum: INTEGER
+ {
+ if ((unsigned) $1 >= state->MaxProgramMatrices) {
+ yyerror(& @1, state, "invalid program matrix selector");
+ YYERROR;
+ }
+
+ $$ = $1;
+ }
+ ;
+
+stateDepthItem: DEPTH RANGE
+ {
+ memset($$, 0, sizeof($$));
+ $$[0] = STATE_DEPTH_RANGE;
+ }
+ ;
+
+
+programSingleItem: progEnvParam | progLocalParam;
+
+programMultipleItem: progEnvParams | progLocalParams;
+
+progEnvParams: PROGRAM ENV '[' progEnvParamNums ']'
+ {
+ memset($$, 0, sizeof($$));
+ $$[0] = state->state_param_enum;
+ $$[1] = STATE_ENV;
+ $$[2] = $4[0];
+ $$[3] = $4[1];
+ }
+ ;
+
+progEnvParamNums: progEnvParamNum
+ {
+ $$[0] = $1;
+ $$[1] = $1;
+ }
+ | progEnvParamNum DOT_DOT progEnvParamNum
+ {
+ $$[0] = $1;
+ $$[1] = $3;
+ }
+ ;
+
+progEnvParam: PROGRAM ENV '[' progEnvParamNum ']'
+ {
+ memset($$, 0, sizeof($$));
+ $$[0] = state->state_param_enum;
+ $$[1] = STATE_ENV;
+ $$[2] = $4;
+ $$[3] = $4;
+ }
+ ;
+
+progLocalParams: PROGRAM LOCAL '[' progLocalParamNums ']'
+ {
+ memset($$, 0, sizeof($$));
+ $$[0] = state->state_param_enum;
+ $$[1] = STATE_LOCAL;
+ $$[2] = $4[0];
+ $$[3] = $4[1];
+ }
+
+progLocalParamNums: progLocalParamNum
+ {
+ $$[0] = $1;
+ $$[1] = $1;
+ }
+ | progLocalParamNum DOT_DOT progLocalParamNum
+ {
+ $$[0] = $1;
+ $$[1] = $3;
+ }
+ ;
+
+progLocalParam: PROGRAM LOCAL '[' progLocalParamNum ']'
+ {
+ memset($$, 0, sizeof($$));
+ $$[0] = state->state_param_enum;
+ $$[1] = STATE_LOCAL;
+ $$[2] = $4;
+ $$[3] = $4;
+ }
+ ;
+
+progEnvParamNum: INTEGER
+ {
+ if ((unsigned) $1 >= state->limits->MaxEnvParams) {
+ yyerror(& @1, state, "invalid environment parameter reference");
+ YYERROR;
+ }
+ $$ = $1;
+ }
+ ;
+
+progLocalParamNum: INTEGER
+ {
+ if ((unsigned) $1 >= state->limits->MaxLocalParams) {
+ yyerror(& @1, state, "invalid local parameter reference");
+ YYERROR;
+ }
+ $$ = $1;
+ }
+ ;
+
+
+
+paramConstDecl: paramConstScalarDecl | paramConstVector;
+paramConstUse: paramConstScalarUse | paramConstVector;
+
+paramConstScalarDecl: signedFloatConstant
+ {
+ $$.count = 4;
+ $$.data[0] = $1;
+ $$.data[1] = $1;
+ $$.data[2] = $1;
+ $$.data[3] = $1;
+ }
+ ;
+
+paramConstScalarUse: REAL
+ {
+ $$.count = 1;
+ $$.data[0] = $1;
+ $$.data[1] = $1;
+ $$.data[2] = $1;
+ $$.data[3] = $1;
+ }
+ | INTEGER
+ {
+ $$.count = 1;
+ $$.data[0] = (float) $1;
+ $$.data[1] = (float) $1;
+ $$.data[2] = (float) $1;
+ $$.data[3] = (float) $1;
+ }
+ ;
+
+paramConstVector: '{' signedFloatConstant '}'
+ {
+ $$.count = 4;
+ $$.data[0] = $2;
+ $$.data[1] = 0.0f;
+ $$.data[2] = 0.0f;
+ $$.data[3] = 1.0f;
+ }
+ | '{' signedFloatConstant ',' signedFloatConstant '}'
+ {
+ $$.count = 4;
+ $$.data[0] = $2;
+ $$.data[1] = $4;
+ $$.data[2] = 0.0f;
+ $$.data[3] = 1.0f;
+ }
+ | '{' signedFloatConstant ',' signedFloatConstant ','
+ signedFloatConstant '}'
+ {
+ $$.count = 4;
+ $$.data[0] = $2;
+ $$.data[1] = $4;
+ $$.data[2] = $6;
+ $$.data[3] = 1.0f;
+ }
+ | '{' signedFloatConstant ',' signedFloatConstant ','
+ signedFloatConstant ',' signedFloatConstant '}'
+ {
+ $$.count = 4;
+ $$.data[0] = $2;
+ $$.data[1] = $4;
+ $$.data[2] = $6;
+ $$.data[3] = $8;
+ }
+ ;
+
+signedFloatConstant: optionalSign REAL
+ {
+ $$ = ($1) ? -$2 : $2;
+ }
+ | optionalSign INTEGER
+ {
+ $$ = (float)(($1) ? -$2 : $2);
+ }
+ ;
+
+optionalSign: '+' { $$ = FALSE; }
+ | '-' { $$ = TRUE; }
+ | { $$ = FALSE; }
+ ;
+
+TEMP_statement: optVarSize TEMP { $<integer>$ = $2; } varNameList
+ ;
+
+optVarSize: string
+ {
+ /* NV_fragment_program_option defines the size qualifiers in a
+ * fairly broken way. "SHORT" or "LONG" can optionally be used
+ * before TEMP or OUTPUT. However, neither is a reserved word!
+ * This means that we have to parse it as an identifier, then check
+ * to make sure it's one of the valid values. *sigh*
+ *
+ * In addition, the grammar in the extension spec does *not* allow
+ * the size specifier to be optional, but all known implementations
+ * do.
+ */
+ if (!state->option.NV_fragment) {
+ yyerror(& @1, state, "unexpected IDENTIFIER");
+ YYERROR;
+ }
+
+ if (strcmp("SHORT", $1) == 0) {
+ } else if (strcmp("LONG", $1) == 0) {
+ } else {
+ char *const err_str =
+ make_error_string("invalid storage size specifier \"%s\"",
+ $1);
+
+ yyerror(& @1, state, (err_str != NULL)
+ ? err_str : "invalid storage size specifier");
+
+ if (err_str != NULL) {
+ free(err_str);
+ }
+
+ YYERROR;
+ }
+ }
+ |
+ {
+ }
+ ;
+
+ADDRESS_statement: ADDRESS { $<integer>$ = $1; } varNameList
+ ;
+
+varNameList: varNameList ',' IDENTIFIER
+ {
+ if (!declare_variable(state, $3, $<integer>0, & @3)) {
+ free($3);
+ YYERROR;
+ }
+ }
+ | IDENTIFIER
+ {
+ if (!declare_variable(state, $1, $<integer>0, & @1)) {
+ free($1);
+ YYERROR;
+ }
+ }
+ ;
+
+OUTPUT_statement: optVarSize OUTPUT IDENTIFIER '=' resultBinding
+ {
+ struct asm_symbol *const s =
+ declare_variable(state, $3, at_output, & @3);
+
+ if (s == NULL) {
+ free($3);
+ YYERROR;
+ } else {
+ s->output_binding = $5;
+ }
+ }
+ ;
+
+resultBinding: RESULT POSITION
+ {
+ if (state->mode == ARB_vertex) {
+ $$ = VERT_RESULT_HPOS;
+ } else {
+ yyerror(& @2, state, "invalid program result name");
+ YYERROR;
+ }
+ }
+ | RESULT FOGCOORD
+ {
+ if (state->mode == ARB_vertex) {
+ $$ = VERT_RESULT_FOGC;
+ } else {
+ yyerror(& @2, state, "invalid program result name");
+ YYERROR;
+ }
+ }
+ | RESULT resultColBinding
+ {
+ $$ = $2;
+ }
+ | RESULT POINTSIZE
+ {
+ if (state->mode == ARB_vertex) {
+ $$ = VERT_RESULT_PSIZ;
+ } else {
+ yyerror(& @2, state, "invalid program result name");
+ YYERROR;
+ }
+ }
+ | RESULT TEXCOORD optTexCoordUnitNum
+ {
+ if (state->mode == ARB_vertex) {
+ $$ = VERT_RESULT_TEX0 + $3;
+ } else {
+ yyerror(& @2, state, "invalid program result name");
+ YYERROR;
+ }
+ }
+ | RESULT DEPTH
+ {
+ if (state->mode == ARB_fragment) {
+ $$ = FRAG_RESULT_DEPTH;
+ } else {
+ yyerror(& @2, state, "invalid program result name");
+ YYERROR;
+ }
+ }
+ ;
+
+resultColBinding: COLOR optResultFaceType optResultColorType
+ {
+ $$ = $2 + $3;
+ }
+ ;
+
+optResultFaceType:
+ {
+ $$ = (state->mode == ARB_vertex)
+ ? VERT_RESULT_COL0
+ : FRAG_RESULT_COLOR;
+ }
+ | FRONT
+ {
+ if (state->mode == ARB_vertex) {
+ $$ = VERT_RESULT_COL0;
+ } else {
+ yyerror(& @1, state, "invalid program result name");
+ YYERROR;
+ }
+ }
+ | BACK
+ {
+ if (state->mode == ARB_vertex) {
+ $$ = VERT_RESULT_BFC0;
+ } else {
+ yyerror(& @1, state, "invalid program result name");
+ YYERROR;
+ }
+ }
+ ;
+
+optResultColorType:
+ {
+ $$ = 0;
+ }
+ | PRIMARY
+ {
+ if (state->mode == ARB_vertex) {
+ $$ = 0;
+ } else {
+ yyerror(& @1, state, "invalid program result name");
+ YYERROR;
+ }
+ }
+ | SECONDARY
+ {
+ if (state->mode == ARB_vertex) {
+ $$ = 1;
+ } else {
+ yyerror(& @1, state, "invalid program result name");
+ YYERROR;
+ }
+ }
+ ;
+
+optFaceType: { $$ = 0; }
+ | FRONT { $$ = 0; }
+ | BACK { $$ = 1; }
+ ;
+
+optColorType: { $$ = 0; }
+ | PRIMARY { $$ = 0; }
+ | SECONDARY { $$ = 1; }
+ ;
+
+optTexCoordUnitNum: { $$ = 0; }
+ | '[' texCoordUnitNum ']' { $$ = $2; }
+ ;
+
+optTexImageUnitNum: { $$ = 0; }
+ | '[' texImageUnitNum ']' { $$ = $2; }
+ ;
+
+optLegacyTexUnitNum: { $$ = 0; }
+ | '[' legacyTexUnitNum ']' { $$ = $2; }
+ ;
+
+texCoordUnitNum: INTEGER
+ {
+ if ((unsigned) $1 >= state->MaxTextureCoordUnits) {
+ yyerror(& @1, state, "invalid texture coordinate unit selector");
+ YYERROR;
+ }
+
+ $$ = $1;
+ }
+ ;
+
+texImageUnitNum: INTEGER
+ {
+ if ((unsigned) $1 >= state->MaxTextureImageUnits) {
+ yyerror(& @1, state, "invalid texture image unit selector");
+ YYERROR;
+ }
+
+ $$ = $1;
+ }
+ ;
+
+legacyTexUnitNum: INTEGER
+ {
+ if ((unsigned) $1 >= state->MaxTextureUnits) {
+ yyerror(& @1, state, "invalid texture unit selector");
+ YYERROR;
+ }
+
+ $$ = $1;
+ }
+ ;
+
+ALIAS_statement: ALIAS IDENTIFIER '=' USED_IDENTIFIER
+ {
+ struct asm_symbol *exist = (struct asm_symbol *)
+ _mesa_symbol_table_find_symbol(state->st, 0, $2);
+ struct asm_symbol *target = (struct asm_symbol *)
+ _mesa_symbol_table_find_symbol(state->st, 0, $4);
+
+ free($4);
+
+ if (exist != NULL) {
+ char m[1000];
+ _mesa_snprintf(m, sizeof(m), "redeclared identifier: %s", $2);
+ free($2);
+ yyerror(& @2, state, m);
+ YYERROR;
+ } else if (target == NULL) {
+ free($2);
+ yyerror(& @4, state,
+ "undefined variable binding in ALIAS statement");
+ YYERROR;
+ } else {
+ _mesa_symbol_table_add_symbol(state->st, 0, $2, target);
+ }
+ }
+ ;
+
+string: IDENTIFIER
+ | USED_IDENTIFIER
+ ;
+
+%%
+
+void
+asm_instruction_set_operands(struct asm_instruction *inst,
+ const struct prog_dst_register *dst,
+ const struct asm_src_register *src0,
+ const struct asm_src_register *src1,
+ const struct asm_src_register *src2)
+{
+ /* In the core ARB extensions only the KIL instruction doesn't have a
+ * destination register.
+ */
+ if (dst == NULL) {
+ init_dst_reg(& inst->Base.DstReg);
+ } else {
+ inst->Base.DstReg = *dst;
+ }
+
+ /* The only instruction that doesn't have any source registers is the
+ * condition-code based KIL instruction added by NV_fragment_program_option.
+ */
+ if (src0 != NULL) {
+ inst->Base.SrcReg[0] = src0->Base;
+ inst->SrcReg[0] = *src0;
+ } else {
+ init_src_reg(& inst->SrcReg[0]);
+ }
+
+ if (src1 != NULL) {
+ inst->Base.SrcReg[1] = src1->Base;
+ inst->SrcReg[1] = *src1;
+ } else {
+ init_src_reg(& inst->SrcReg[1]);
+ }
+
+ if (src2 != NULL) {
+ inst->Base.SrcReg[2] = src2->Base;
+ inst->SrcReg[2] = *src2;
+ } else {
+ init_src_reg(& inst->SrcReg[2]);
+ }
+}
+
+
+struct asm_instruction *
+asm_instruction_ctor(gl_inst_opcode op,
+ const struct prog_dst_register *dst,
+ const struct asm_src_register *src0,
+ const struct asm_src_register *src1,
+ const struct asm_src_register *src2)
+{
+ struct asm_instruction *inst = CALLOC_STRUCT(asm_instruction);
+
+ if (inst) {
+ _mesa_init_instructions(& inst->Base, 1);
+ inst->Base.Opcode = op;
+
+ asm_instruction_set_operands(inst, dst, src0, src1, src2);
+ }
+
+ return inst;
+}
+
+
+struct asm_instruction *
+asm_instruction_copy_ctor(const struct prog_instruction *base,
+ const struct prog_dst_register *dst,
+ const struct asm_src_register *src0,
+ const struct asm_src_register *src1,
+ const struct asm_src_register *src2)
+{
+ struct asm_instruction *inst = CALLOC_STRUCT(asm_instruction);
+
+ if (inst) {
+ _mesa_init_instructions(& inst->Base, 1);
+ inst->Base.Opcode = base->Opcode;
+ inst->Base.CondUpdate = base->CondUpdate;
+ inst->Base.CondDst = base->CondDst;
+ inst->Base.SaturateMode = base->SaturateMode;
+ inst->Base.Precision = base->Precision;
+
+ asm_instruction_set_operands(inst, dst, src0, src1, src2);
+ }
+
+ return inst;
+}
+
+
+void
+init_dst_reg(struct prog_dst_register *r)
+{
+ memset(r, 0, sizeof(*r));
+ r->File = PROGRAM_UNDEFINED;
+ r->WriteMask = WRITEMASK_XYZW;
+ r->CondMask = COND_TR;
+ r->CondSwizzle = SWIZZLE_NOOP;
+}
+
+
+/** Like init_dst_reg() but set the File and Index fields. */
+void
+set_dst_reg(struct prog_dst_register *r, gl_register_file file, GLint index)
+{
+ const GLint maxIndex = 1 << INST_INDEX_BITS;
+ const GLint minIndex = 0;
+ ASSERT(index >= minIndex);
+ (void) minIndex;
+ ASSERT(index <= maxIndex);
+ (void) maxIndex;
+ ASSERT(file == PROGRAM_TEMPORARY ||
+ file == PROGRAM_ADDRESS ||
+ file == PROGRAM_OUTPUT);
+ memset(r, 0, sizeof(*r));
+ r->File = file;
+ r->Index = index;
+ r->WriteMask = WRITEMASK_XYZW;
+ r->CondMask = COND_TR;
+ r->CondSwizzle = SWIZZLE_NOOP;
+}
+
+
+void
+init_src_reg(struct asm_src_register *r)
+{
+ memset(r, 0, sizeof(*r));
+ r->Base.File = PROGRAM_UNDEFINED;
+ r->Base.Swizzle = SWIZZLE_NOOP;
+ r->Symbol = NULL;
+}
+
+
+/** Like init_src_reg() but set the File and Index fields.
+ * \return GL_TRUE if a valid src register, GL_FALSE otherwise
+ */
+void
+set_src_reg(struct asm_src_register *r, gl_register_file file, GLint index)
+{
+ set_src_reg_swz(r, file, index, SWIZZLE_XYZW);
+}
+
+
+void
+set_src_reg_swz(struct asm_src_register *r, gl_register_file file, GLint index,
+ GLuint swizzle)
+{
+ const GLint maxIndex = (1 << INST_INDEX_BITS) - 1;
+ const GLint minIndex = -(1 << INST_INDEX_BITS);
+ ASSERT(file < PROGRAM_FILE_MAX);
+ ASSERT(index >= minIndex);
+ (void) minIndex;
+ ASSERT(index <= maxIndex);
+ (void) maxIndex;
+ memset(r, 0, sizeof(*r));
+ r->Base.File = file;
+ r->Base.Index = index;
+ r->Base.Swizzle = swizzle;
+ r->Symbol = NULL;
+}
+
+
+/**
+ * Validate the set of inputs used by a program
+ *
+ * Validates that legal sets of inputs are used by the program. In this case
+ * "used" included both reading the input or binding the input to a name using
+ * the \c ATTRIB command.
+ *
+ * \return
+ * \c TRUE if the combination of inputs used is valid, \c FALSE otherwise.
+ */
+int
+validate_inputs(struct YYLTYPE *locp, struct asm_parser_state *state)
+{
+ const int inputs = state->prog->InputsRead | state->InputsBound;
+
+ if (((inputs & 0x0ffff) & (inputs >> 16)) != 0) {
+ yyerror(locp, state, "illegal use of generic attribute and name attribute");
+ return 0;
+ }
+
+ return 1;
+}
+
+
+struct asm_symbol *
+declare_variable(struct asm_parser_state *state, char *name, enum asm_type t,
+ struct YYLTYPE *locp)
+{
+ struct asm_symbol *s = NULL;
+ struct asm_symbol *exist = (struct asm_symbol *)
+ _mesa_symbol_table_find_symbol(state->st, 0, name);
+
+
+ if (exist != NULL) {
+ yyerror(locp, state, "redeclared identifier");
+ } else {
+ s = calloc(1, sizeof(struct asm_symbol));
+ s->name = name;
+ s->type = t;
+
+ switch (t) {
+ case at_temp:
+ if (state->prog->NumTemporaries >= state->limits->MaxTemps) {
+ yyerror(locp, state, "too many temporaries declared");
+ free(s);
+ return NULL;
+ }
+
+ s->temp_binding = state->prog->NumTemporaries;
+ state->prog->NumTemporaries++;
+ break;
+
+ case at_address:
+ if (state->prog->NumAddressRegs >= state->limits->MaxAddressRegs) {
+ yyerror(locp, state, "too many address registers declared");
+ free(s);
+ return NULL;
+ }
+
+ /* FINISHME: Add support for multiple address registers.
+ */
+ state->prog->NumAddressRegs++;
+ break;
+
+ default:
+ break;
+ }
+
+ _mesa_symbol_table_add_symbol(state->st, 0, s->name, s);
+ s->next = state->sym;
+ state->sym = s;
+ }
+
+ return s;
+}
+
+
+int add_state_reference(struct gl_program_parameter_list *param_list,
+ const gl_state_index tokens[STATE_LENGTH])
+{
+ const GLuint size = 4; /* XXX fix */
+ char *name;
+ GLint index;
+
+ name = _mesa_program_state_string(tokens);
+ index = _mesa_add_parameter(param_list, PROGRAM_STATE_VAR, name,
+ size, GL_NONE, NULL, tokens, 0x0);
+ param_list->StateFlags |= _mesa_program_state_flags(tokens);
+
+ /* free name string here since we duplicated it in add_parameter() */
+ free(name);
+
+ return index;
+}
+
+
+int
+initialize_symbol_from_state(struct gl_program *prog,
+ struct asm_symbol *param_var,
+ const gl_state_index tokens[STATE_LENGTH])
+{
+ int idx = -1;
+ gl_state_index state_tokens[STATE_LENGTH];
+
+
+ memcpy(state_tokens, tokens, sizeof(state_tokens));
+
+ param_var->type = at_param;
+ param_var->param_binding_type = PROGRAM_STATE_VAR;
+
+ /* If we are adding a STATE_MATRIX that has multiple rows, we need to
+ * unroll it and call add_state_reference() for each row
+ */
+ if ((state_tokens[0] == STATE_MODELVIEW_MATRIX ||
+ state_tokens[0] == STATE_PROJECTION_MATRIX ||
+ state_tokens[0] == STATE_MVP_MATRIX ||
+ state_tokens[0] == STATE_TEXTURE_MATRIX ||
+ state_tokens[0] == STATE_PROGRAM_MATRIX)
+ && (state_tokens[2] != state_tokens[3])) {
+ int row;
+ const int first_row = state_tokens[2];
+ const int last_row = state_tokens[3];
+
+ for (row = first_row; row <= last_row; row++) {
+ state_tokens[2] = state_tokens[3] = row;
+
+ idx = add_state_reference(prog->Parameters, state_tokens);
+ if (param_var->param_binding_begin == ~0U) {
+ param_var->param_binding_begin = idx;
+ param_var->param_binding_swizzle = SWIZZLE_XYZW;
+ }
+
+ param_var->param_binding_length++;
+ }
+ }
+ else {
+ idx = add_state_reference(prog->Parameters, state_tokens);
+ if (param_var->param_binding_begin == ~0U) {
+ param_var->param_binding_begin = idx;
+ param_var->param_binding_swizzle = SWIZZLE_XYZW;
+ }
+ param_var->param_binding_length++;
+ }
+
+ return idx;
+}
+
+
+int
+initialize_symbol_from_param(struct gl_program *prog,
+ struct asm_symbol *param_var,
+ const gl_state_index tokens[STATE_LENGTH])
+{
+ int idx = -1;
+ gl_state_index state_tokens[STATE_LENGTH];
+
+
+ memcpy(state_tokens, tokens, sizeof(state_tokens));
+
+ assert((state_tokens[0] == STATE_VERTEX_PROGRAM)
+ || (state_tokens[0] == STATE_FRAGMENT_PROGRAM));
+ assert((state_tokens[1] == STATE_ENV)
+ || (state_tokens[1] == STATE_LOCAL));
+
+ /*
+ * The param type is STATE_VAR. The program parameter entry will
+ * effectively be a pointer into the LOCAL or ENV parameter array.
+ */
+ param_var->type = at_param;
+ param_var->param_binding_type = PROGRAM_STATE_VAR;
+
+ /* If we are adding a STATE_ENV or STATE_LOCAL that has multiple elements,
+ * we need to unroll it and call add_state_reference() for each row
+ */
+ if (state_tokens[2] != state_tokens[3]) {
+ int row;
+ const int first_row = state_tokens[2];
+ const int last_row = state_tokens[3];
+
+ for (row = first_row; row <= last_row; row++) {
+ state_tokens[2] = state_tokens[3] = row;
+
+ idx = add_state_reference(prog->Parameters, state_tokens);
+ if (param_var->param_binding_begin == ~0U) {
+ param_var->param_binding_begin = idx;
+ param_var->param_binding_swizzle = SWIZZLE_XYZW;
+ }
+ param_var->param_binding_length++;
+ }
+ }
+ else {
+ idx = add_state_reference(prog->Parameters, state_tokens);
+ if (param_var->param_binding_begin == ~0U) {
+ param_var->param_binding_begin = idx;
+ param_var->param_binding_swizzle = SWIZZLE_XYZW;
+ }
+ param_var->param_binding_length++;
+ }
+
+ return idx;
+}
+
+
+/**
+ * Put a float/vector constant/literal into the parameter list.
+ * \param param_var returns info about the parameter/constant's location,
+ * binding, type, etc.
+ * \param vec the vector/constant to add
+ * \param allowSwizzle if true, try to consolidate constants which only differ
+ * by a swizzle. We don't want to do this when building
+ * arrays of constants that may be indexed indirectly.
+ * \return index of the constant in the parameter list.
+ */
+int
+initialize_symbol_from_const(struct gl_program *prog,
+ struct asm_symbol *param_var,
+ const struct asm_vector *vec,
+ GLboolean allowSwizzle)
+{
+ unsigned swizzle;
+ const int idx = _mesa_add_unnamed_constant(prog->Parameters,
+ vec->data, vec->count,
+ allowSwizzle ? &swizzle : NULL);
+
+ param_var->type = at_param;
+ param_var->param_binding_type = PROGRAM_CONSTANT;
+
+ if (param_var->param_binding_begin == ~0U) {
+ param_var->param_binding_begin = idx;
+ param_var->param_binding_swizzle = allowSwizzle ? swizzle : SWIZZLE_XYZW;
+ }
+ param_var->param_binding_length++;
+
+ return idx;
+}
+
+
+char *
+make_error_string(const char *fmt, ...)
+{
+ int length;
+ char *str;
+ va_list args;
+
+
+ /* Call vsnprintf once to determine how large the final string is. Call it
+ * again to do the actual formatting. from the vsnprintf manual page:
+ *
+ * Upon successful return, these functions return the number of
+ * characters printed (not including the trailing '\0' used to end
+ * output to strings).
+ */
+ va_start(args, fmt);
+ length = 1 + vsnprintf(NULL, 0, fmt, args);
+ va_end(args);
+
+ str = malloc(length);
+ if (str) {
+ va_start(args, fmt);
+ vsnprintf(str, length, fmt, args);
+ va_end(args);
+ }
+
+ return str;
+}
+
+
+void
+yyerror(YYLTYPE *locp, struct asm_parser_state *state, const char *s)
+{
+ char *err_str;
+
+
+ err_str = make_error_string("glProgramStringARB(%s)\n", s);
+ if (err_str) {
+ _mesa_error(state->ctx, GL_INVALID_OPERATION, "%s", err_str);
+ free(err_str);
+ }
+
+ err_str = make_error_string("line %u, char %u: error: %s\n",
+ locp->first_line, locp->first_column, s);
+ _mesa_set_program_error(state->ctx, locp->position, err_str);
+
+ if (err_str) {
+ free(err_str);
+ }
+}
+
+
+GLboolean
+_mesa_parse_arb_program(struct gl_context *ctx, GLenum target, const GLubyte *str,
+ GLsizei len, struct asm_parser_state *state)
+{
+ struct asm_instruction *inst;
+ unsigned i;
+ GLubyte *strz;
+ GLboolean result = GL_FALSE;
+ void *temp;
+ struct asm_symbol *sym;
+
+ state->ctx = ctx;
+ state->prog->Target = target;
+ state->prog->Parameters = _mesa_new_parameter_list();
+
+ /* Make a copy of the program string and force it to be NUL-terminated.
+ */
+ strz = (GLubyte *) malloc(len + 1);
+ if (strz == NULL) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glProgramStringARB");
+ return GL_FALSE;
+ }
+ memcpy (strz, str, len);
+ strz[len] = '\0';
+
+ state->prog->String = strz;
+
+ state->st = _mesa_symbol_table_ctor();
+
+ state->limits = (target == GL_VERTEX_PROGRAM_ARB)
+ ? & ctx->Const.VertexProgram
+ : & ctx->Const.FragmentProgram;
+
+ state->MaxTextureImageUnits = ctx->Const.MaxTextureImageUnits;
+ state->MaxTextureCoordUnits = ctx->Const.MaxTextureCoordUnits;
+ state->MaxTextureUnits = ctx->Const.MaxTextureUnits;
+ state->MaxClipPlanes = ctx->Const.MaxClipPlanes;
+ state->MaxLights = ctx->Const.MaxLights;
+ state->MaxProgramMatrices = ctx->Const.MaxProgramMatrices;
+
+ state->state_param_enum = (target == GL_VERTEX_PROGRAM_ARB)
+ ? STATE_VERTEX_PROGRAM : STATE_FRAGMENT_PROGRAM;
+
+ _mesa_set_program_error(ctx, -1, NULL);
+
+ _mesa_program_lexer_ctor(& state->scanner, state, (const char *) str, len);
+ yyparse(state);
+ _mesa_program_lexer_dtor(state->scanner);
+
+
+ if (ctx->Program.ErrorPos != -1) {
+ goto error;
+ }
+
+ if (! _mesa_layout_parameters(state)) {
+ struct YYLTYPE loc;
+
+ loc.first_line = 0;
+ loc.first_column = 0;
+ loc.position = len;
+
+ yyerror(& loc, state, "invalid PARAM usage");
+ goto error;
+ }
+
+
+
+ /* Add one instruction to store the "END" instruction.
+ */
+ state->prog->Instructions =
+ _mesa_alloc_instructions(state->prog->NumInstructions + 1);
+ inst = state->inst_head;
+ for (i = 0; i < state->prog->NumInstructions; i++) {
+ struct asm_instruction *const temp = inst->next;
+
+ state->prog->Instructions[i] = inst->Base;
+ inst = temp;
+ }
+
+ /* Finally, tag on an OPCODE_END instruction */
+ {
+ const GLuint numInst = state->prog->NumInstructions;
+ _mesa_init_instructions(state->prog->Instructions + numInst, 1);
+ state->prog->Instructions[numInst].Opcode = OPCODE_END;
+ }
+ state->prog->NumInstructions++;
+
+ state->prog->NumParameters = state->prog->Parameters->NumParameters;
+ state->prog->NumAttributes = _mesa_bitcount(state->prog->InputsRead);
+
+ /*
+ * Initialize native counts to logical counts. The device driver may
+ * change them if program is translated into a hardware program.
+ */
+ state->prog->NumNativeInstructions = state->prog->NumInstructions;
+ state->prog->NumNativeTemporaries = state->prog->NumTemporaries;
+ state->prog->NumNativeParameters = state->prog->NumParameters;
+ state->prog->NumNativeAttributes = state->prog->NumAttributes;
+ state->prog->NumNativeAddressRegs = state->prog->NumAddressRegs;
+
+ result = GL_TRUE;
+
+error:
+ for (inst = state->inst_head; inst != NULL; inst = temp) {
+ temp = inst->next;
+ free(inst);
+ }
+
+ state->inst_head = NULL;
+ state->inst_tail = NULL;
+
+ for (sym = state->sym; sym != NULL; sym = temp) {
+ temp = sym->next;
+
+ free((void *) sym->name);
+ free(sym);
+ }
+ state->sym = NULL;
+
+ _mesa_symbol_table_dtor(state->st);
+ state->st = NULL;
+
+ return result;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 03:45:46 +0000