3 * Copyright © 2009 Intel Corporation
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
28 #include "main/mtypes.h"
29 #include "main/imports.h"
30 #include "program/program.h"
31 #include "program/prog_parameter.h"
32 #include "program/prog_parameter_layout.h"
33 #include "program/prog_statevars.h"
34 #include "program/prog_instruction.h"
36 #include "program/symbol_table.h"
37 #include "program/program_parser.h"
39 extern void *yy_scan_string(char *);
40 extern void yy_delete_buffer(void *);
42 static struct asm_symbol *declare_variable(struct asm_parser_state *state,
43 char *name, enum asm_type t, struct YYLTYPE *locp);
45 static int add_state_reference(struct gl_program_parameter_list *param_list,
46 const gl_state_index tokens[STATE_LENGTH]);
48 static int initialize_symbol_from_state(struct gl_program *prog,
49 struct asm_symbol *param_var, const gl_state_index tokens[STATE_LENGTH]);
51 static int initialize_symbol_from_param(struct gl_program *prog,
52 struct asm_symbol *param_var, const gl_state_index tokens[STATE_LENGTH]);
54 static int initialize_symbol_from_const(struct gl_program *prog,
55 struct asm_symbol *param_var, const struct asm_vector *vec,
56 GLboolean allowSwizzle);
58 static int yyparse(struct asm_parser_state *state);
60 static char *make_error_string(const char *fmt, ...);
62 static void yyerror(struct YYLTYPE *locp, struct asm_parser_state *state,
65 static int validate_inputs(struct YYLTYPE *locp,
66 struct asm_parser_state *state);
68 static void init_dst_reg(struct prog_dst_register *r);
70 static void set_dst_reg(struct prog_dst_register *r,
71 gl_register_file file, GLint index);
73 static void init_src_reg(struct asm_src_register *r);
75 static void set_src_reg(struct asm_src_register *r,
76 gl_register_file file, GLint index);
78 static void set_src_reg_swz(struct asm_src_register *r,
79 gl_register_file file, GLint index, GLuint swizzle);
81 static void asm_instruction_set_operands(struct asm_instruction *inst,
82 const struct prog_dst_register *dst, const struct asm_src_register *src0,
83 const struct asm_src_register *src1, const struct asm_src_register *src2);
85 static struct asm_instruction *asm_instruction_ctor(gl_inst_opcode op,
86 const struct prog_dst_register *dst, const struct asm_src_register *src0,
87 const struct asm_src_register *src1, const struct asm_src_register *src2);
89 static struct asm_instruction *asm_instruction_copy_ctor(
90 const struct prog_instruction *base, const struct prog_dst_register *dst,
91 const struct asm_src_register *src0, const struct asm_src_register *src1,
92 const struct asm_src_register *src2);
99 #define YYLLOC_DEFAULT(Current, Rhs, N) \
102 (Current).first_line = YYRHSLOC(Rhs, 1).first_line; \
103 (Current).first_column = YYRHSLOC(Rhs, 1).first_column; \
104 (Current).position = YYRHSLOC(Rhs, 1).position; \
105 (Current).last_line = YYRHSLOC(Rhs, N).last_line; \
106 (Current).last_column = YYRHSLOC(Rhs, N).last_column; \
108 (Current).first_line = YYRHSLOC(Rhs, 0).last_line; \
109 (Current).last_line = (Current).first_line; \
110 (Current).first_column = YYRHSLOC(Rhs, 0).last_column; \
111 (Current).last_column = (Current).first_column; \
112 (Current).position = YYRHSLOC(Rhs, 0).position \
113 + (Current).first_column; \
117 #define YYLEX_PARAM state->scanner
122 %parse-param { struct asm_parser_state *state }
124 %lex-param { void *scanner }
127 struct asm_instruction *inst;
128 struct asm_symbol *sym;
129 struct asm_symbol temp_sym;
130 struct asm_swizzle_mask swiz_mask;
131 struct asm_src_register src_reg;
132 struct prog_dst_register dst_reg;
133 struct prog_instruction temp_inst;
139 gl_state_index state[STATE_LENGTH];
141 struct asm_vector vector;
142 gl_inst_opcode opcode;
146 unsigned rgba_valid:1;
147 unsigned xyzw_valid:1;
152 %token ARBvp_10 ARBfp_10
154 /* Tokens for assembler pseudo-ops */
155 %token <integer> ADDRESS
159 %token <integer> TEMP
162 /* Tokens for instructions */
163 %token <temp_inst> BIN_OP BINSC_OP SAMPLE_OP SCALAR_OP TRI_OP VECTOR_OP
164 %token <temp_inst> ARL KIL SWZ TXD_OP
166 %token <integer> INTEGER
169 %token AMBIENT ATTENUATION
172 %token DEPTH DIFFUSE DIRECTION
173 %token EMISSION ENV EYE
174 %token FOG FOGCOORD FRAGMENT FRONT
176 %token INVERSE INVTRANS
177 %token LIGHT LIGHTMODEL LIGHTPROD LOCAL
178 %token MATERIAL MAT_PROGRAM MATRIX MATRIXINDEX MODELVIEW MVP
181 %token PALETTE PARAMS PLANE POINT_TOK POINTSIZE POSITION PRIMARY PROGRAM PROJECTION
182 %token RANGE RESULT ROW
183 %token SCENECOLOR SECONDARY SHININESS SIZE_TOK SPECULAR SPOT STATE
184 %token TEXCOORD TEXENV TEXGEN TEXGEN_Q TEXGEN_R TEXGEN_S TEXGEN_T TEXTURE TRANSPOSE
185 %token TEXTURE_UNIT TEX_1D TEX_2D TEX_3D TEX_CUBE TEX_RECT
186 %token TEX_SHADOW1D TEX_SHADOW2D TEX_SHADOWRECT
187 %token TEX_ARRAY1D TEX_ARRAY2D TEX_ARRAYSHADOW1D TEX_ARRAYSHADOW2D
188 %token VERTEX VTXATTRIB
191 %token <string> IDENTIFIER USED_IDENTIFIER
192 %type <string> string
193 %token <swiz_mask> MASK4 MASK3 MASK2 MASK1 SWIZZLE
197 %type <inst> instruction ALU_instruction TexInstruction
198 %type <inst> ARL_instruction VECTORop_instruction
199 %type <inst> SCALARop_instruction BINSCop_instruction BINop_instruction
200 %type <inst> TRIop_instruction TXD_instruction SWZ_instruction SAMPLE_instruction
201 %type <inst> KIL_instruction
203 %type <dst_reg> dstReg maskedDstReg maskedAddrReg
204 %type <src_reg> srcReg scalarUse scalarSrcReg swizzleSrcReg
205 %type <swiz_mask> scalarSuffix swizzleSuffix extendedSwizzle
206 %type <ext_swizzle> extSwizComp extSwizSel
207 %type <swiz_mask> optionalMask
209 %type <sym> progParamArray
210 %type <integer> addrRegRelOffset addrRegPosOffset addrRegNegOffset
211 %type <src_reg> progParamArrayMem progParamArrayAbs progParamArrayRel
213 %type <swiz_mask> addrComponent addrWriteMask
215 %type <dst_reg> ccMaskRule ccTest ccMaskRule2 ccTest2 optionalCcMask
217 %type <result> resultBinding resultColBinding
218 %type <integer> optFaceType optColorType
219 %type <integer> optResultFaceType optResultColorType
221 %type <integer> optTexImageUnitNum texImageUnitNum
222 %type <integer> optTexCoordUnitNum texCoordUnitNum
223 %type <integer> optLegacyTexUnitNum legacyTexUnitNum
224 %type <integer> texImageUnit texTarget
225 %type <integer> vtxAttribNum
227 %type <attrib> attribBinding vtxAttribItem fragAttribItem
229 %type <temp_sym> paramSingleInit paramSingleItemDecl
230 %type <integer> optArraySize
232 %type <state> stateSingleItem stateMultipleItem
233 %type <state> stateMaterialItem
234 %type <state> stateLightItem stateLightModelItem stateLightProdItem
235 %type <state> stateTexGenItem stateFogItem stateClipPlaneItem statePointItem
236 %type <state> stateMatrixItem stateMatrixRow stateMatrixRows
237 %type <state> stateTexEnvItem stateDepthItem
239 %type <state> stateLModProperty
240 %type <state> stateMatrixName optMatrixRows
242 %type <integer> stateMatProperty
243 %type <integer> stateLightProperty stateSpotProperty
244 %type <integer> stateLightNumber stateLProdProperty
245 %type <integer> stateTexGenType stateTexGenCoord
246 %type <integer> stateTexEnvProperty
247 %type <integer> stateFogProperty
248 %type <integer> stateClipPlaneNum
249 %type <integer> statePointProperty
251 %type <integer> stateOptMatModifier stateMatModifier stateMatrixRowNum
252 %type <integer> stateOptModMatNum stateModMatNum statePaletteMatNum
253 %type <integer> stateProgramMatNum
255 %type <integer> ambDiffSpecProperty
257 %type <state> programSingleItem progEnvParam progLocalParam
258 %type <state> programMultipleItem progEnvParams progLocalParams
260 %type <temp_sym> paramMultipleInit paramMultInitList paramMultipleItem
261 %type <temp_sym> paramSingleItemUse
263 %type <integer> progEnvParamNum progLocalParamNum
264 %type <state> progEnvParamNums progLocalParamNums
266 %type <vector> paramConstDecl paramConstUse
267 %type <vector> paramConstScalarDecl paramConstScalarUse paramConstVector
268 %type <real> signedFloatConstant
269 %type <negate> optionalSign
272 extern int yylex(YYSTYPE *yylval_param, YYLTYPE *yylloc_param,
278 program: language optionSequence statementSequence END
283 if (state->prog->Target != GL_VERTEX_PROGRAM_ARB) {
284 yyerror(& @1, state, "invalid fragment program header");
287 state->mode = ARB_vertex;
291 if (state->prog->Target != GL_FRAGMENT_PROGRAM_ARB) {
292 yyerror(& @1, state, "invalid vertex program header");
294 state->mode = ARB_fragment;
296 state->option.TexRect =
297 (state->ctx->Extensions.NV_texture_rectangle != GL_FALSE);
301 optionSequence: optionSequence option
305 option: OPTION string ';'
309 if (state->mode == ARB_vertex) {
310 valid = _mesa_ARBvp_parse_option(state, $2);
311 } else if (state->mode == ARB_fragment) {
312 valid = _mesa_ARBfp_parse_option(state, $2);
319 const char *const err_str = (state->mode == ARB_vertex)
320 ? "invalid ARB vertex program option"
321 : "invalid ARB fragment program option";
323 yyerror(& @2, state, err_str);
329 statementSequence: statementSequence statement
333 statement: instruction ';'
336 if (state->inst_tail == NULL) {
337 state->inst_head = $1;
339 state->inst_tail->next = $1;
342 state->inst_tail = $1;
345 state->prog->NumInstructions++;
348 | namingStatement ';'
351 instruction: ALU_instruction
354 state->prog->NumAluInstructions++;
359 state->prog->NumTexInstructions++;
363 ALU_instruction: ARL_instruction
364 | VECTORop_instruction
365 | SCALARop_instruction
366 | BINSCop_instruction
372 TexInstruction: SAMPLE_instruction
377 ARL_instruction: ARL maskedAddrReg ',' scalarSrcReg
379 $$ = asm_instruction_ctor(OPCODE_ARL, & $2, & $4, NULL, NULL);
383 VECTORop_instruction: VECTOR_OP maskedDstReg ',' swizzleSrcReg
385 if ($1.Opcode == OPCODE_DDY)
386 state->fragment.UsesDFdy = 1;
387 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL);
391 SCALARop_instruction: SCALAR_OP maskedDstReg ',' scalarSrcReg
393 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL);
397 BINSCop_instruction: BINSC_OP maskedDstReg ',' scalarSrcReg ',' scalarSrcReg
399 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, NULL);
404 BINop_instruction: BIN_OP maskedDstReg ',' swizzleSrcReg ',' swizzleSrcReg
406 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, NULL);
410 TRIop_instruction: TRI_OP maskedDstReg ','
411 swizzleSrcReg ',' swizzleSrcReg ',' swizzleSrcReg
413 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, & $8);
417 SAMPLE_instruction: SAMPLE_OP maskedDstReg ',' swizzleSrcReg ',' texImageUnit ',' texTarget
419 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL);
421 const GLbitfield tex_mask = (1U << $6);
422 GLbitfield shadow_tex = 0;
423 GLbitfield target_mask = 0;
426 $$->Base.TexSrcUnit = $6;
429 shadow_tex = tex_mask;
431 $$->Base.TexSrcTarget = -$8;
432 $$->Base.TexShadow = 1;
434 $$->Base.TexSrcTarget = $8;
437 target_mask = (1U << $$->Base.TexSrcTarget);
439 /* If this texture unit was previously accessed and that access
440 * had a different texture target, generate an error.
442 * If this texture unit was previously accessed and that access
443 * had a different shadow mode, generate an error.
445 if ((state->prog->TexturesUsed[$6] != 0)
446 && ((state->prog->TexturesUsed[$6] != target_mask)
447 || ((state->prog->ShadowSamplers & tex_mask)
450 "multiple targets used on one texture image unit");
455 state->prog->TexturesUsed[$6] |= target_mask;
456 state->prog->ShadowSamplers |= shadow_tex;
461 KIL_instruction: KIL swizzleSrcReg
463 $$ = asm_instruction_ctor(OPCODE_KIL, NULL, & $2, NULL, NULL);
464 state->fragment.UsesKill = 1;
468 $$ = asm_instruction_ctor(OPCODE_KIL_NV, NULL, NULL, NULL, NULL);
469 $$->Base.DstReg.CondMask = $2.CondMask;
470 $$->Base.DstReg.CondSwizzle = $2.CondSwizzle;
471 $$->Base.DstReg.CondSrc = $2.CondSrc;
472 state->fragment.UsesKill = 1;
476 TXD_instruction: TXD_OP maskedDstReg ',' swizzleSrcReg ',' swizzleSrcReg ',' swizzleSrcReg ',' texImageUnit ',' texTarget
478 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, & $8);
480 const GLbitfield tex_mask = (1U << $10);
481 GLbitfield shadow_tex = 0;
482 GLbitfield target_mask = 0;
485 $$->Base.TexSrcUnit = $10;
488 shadow_tex = tex_mask;
490 $$->Base.TexSrcTarget = -$12;
491 $$->Base.TexShadow = 1;
493 $$->Base.TexSrcTarget = $12;
496 target_mask = (1U << $$->Base.TexSrcTarget);
498 /* If this texture unit was previously accessed and that access
499 * had a different texture target, generate an error.
501 * If this texture unit was previously accessed and that access
502 * had a different shadow mode, generate an error.
504 if ((state->prog->TexturesUsed[$10] != 0)
505 && ((state->prog->TexturesUsed[$10] != target_mask)
506 || ((state->prog->ShadowSamplers & tex_mask)
508 yyerror(& @12, state,
509 "multiple targets used on one texture image unit");
514 state->prog->TexturesUsed[$10] |= target_mask;
515 state->prog->ShadowSamplers |= shadow_tex;
520 texImageUnit: TEXTURE_UNIT optTexImageUnitNum
526 texTarget: TEX_1D { $$ = TEXTURE_1D_INDEX; }
527 | TEX_2D { $$ = TEXTURE_2D_INDEX; }
528 | TEX_3D { $$ = TEXTURE_3D_INDEX; }
529 | TEX_CUBE { $$ = TEXTURE_CUBE_INDEX; }
530 | TEX_RECT { $$ = TEXTURE_RECT_INDEX; }
531 | TEX_SHADOW1D { $$ = -TEXTURE_1D_INDEX; }
532 | TEX_SHADOW2D { $$ = -TEXTURE_2D_INDEX; }
533 | TEX_SHADOWRECT { $$ = -TEXTURE_RECT_INDEX; }
534 | TEX_ARRAY1D { $$ = TEXTURE_1D_ARRAY_INDEX; }
535 | TEX_ARRAY2D { $$ = TEXTURE_2D_ARRAY_INDEX; }
536 | TEX_ARRAYSHADOW1D { $$ = -TEXTURE_1D_ARRAY_INDEX; }
537 | TEX_ARRAYSHADOW2D { $$ = -TEXTURE_2D_ARRAY_INDEX; }
540 SWZ_instruction: SWZ maskedDstReg ',' srcReg ',' extendedSwizzle
542 /* FIXME: Is this correct? Should the extenedSwizzle be applied
543 * FIXME: to the existing swizzle?
545 $4.Base.Swizzle = $6.swizzle;
546 $4.Base.Negate = $6.mask;
548 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL);
552 scalarSrcReg: optionalSign scalarUse
557 $$.Base.Negate = ~$$.Base.Negate;
560 | optionalSign '|' scalarUse '|'
564 if (!state->option.NV_fragment) {
565 yyerror(& @2, state, "unexpected character '|'");
570 $$.Base.Negate = ~$$.Base.Negate;
577 scalarUse: srcReg scalarSuffix
581 $$.Base.Swizzle = _mesa_combine_swizzles($$.Base.Swizzle,
584 | paramConstScalarUse
586 struct asm_symbol temp_sym;
588 if (!state->option.NV_fragment) {
589 yyerror(& @1, state, "expected scalar suffix");
593 memset(& temp_sym, 0, sizeof(temp_sym));
594 temp_sym.param_binding_begin = ~0;
595 initialize_symbol_from_const(state->prog, & temp_sym, & $1, GL_TRUE);
597 set_src_reg_swz(& $$, PROGRAM_CONSTANT,
598 temp_sym.param_binding_begin,
599 temp_sym.param_binding_swizzle);
603 swizzleSrcReg: optionalSign srcReg swizzleSuffix
608 $$.Base.Negate = ~$$.Base.Negate;
611 $$.Base.Swizzle = _mesa_combine_swizzles($$.Base.Swizzle,
614 | optionalSign '|' srcReg swizzleSuffix '|'
618 if (!state->option.NV_fragment) {
619 yyerror(& @2, state, "unexpected character '|'");
624 $$.Base.Negate = ~$$.Base.Negate;
628 $$.Base.Swizzle = _mesa_combine_swizzles($$.Base.Swizzle,
634 maskedDstReg: dstReg optionalMask optionalCcMask
637 $$.WriteMask = $2.mask;
638 $$.CondMask = $3.CondMask;
639 $$.CondSwizzle = $3.CondSwizzle;
640 $$.CondSrc = $3.CondSrc;
642 if ($$.File == PROGRAM_OUTPUT) {
643 /* Technically speaking, this should check that it is in
644 * vertex program mode. However, PositionInvariant can never be
645 * set in fragment program mode, so it is somewhat irrelevant.
647 if (state->option.PositionInvariant
648 && ($$.Index == VERT_RESULT_HPOS)) {
649 yyerror(& @1, state, "position-invariant programs cannot "
654 state->prog->OutputsWritten |= BITFIELD64_BIT($$.Index);
659 maskedAddrReg: addrReg addrWriteMask
661 set_dst_reg(& $$, PROGRAM_ADDRESS, 0);
662 $$.WriteMask = $2.mask;
666 extendedSwizzle: extSwizComp ',' extSwizComp ',' extSwizComp ',' extSwizComp
668 const unsigned xyzw_valid =
670 | ($3.xyzw_valid << 1)
671 | ($5.xyzw_valid << 2)
672 | ($7.xyzw_valid << 3);
673 const unsigned rgba_valid =
675 | ($3.rgba_valid << 1)
676 | ($5.rgba_valid << 2)
677 | ($7.rgba_valid << 3);
679 /* All of the swizzle components have to be valid in either RGBA
680 * or XYZW. Note that 0 and 1 are valid in both, so both masks
681 * can have some bits set.
683 * We somewhat deviate from the spec here. It would be really hard
684 * to figure out which component is the error, and there probably
685 * isn't a lot of benefit.
687 if ((rgba_valid != 0x0f) && (xyzw_valid != 0x0f)) {
688 yyerror(& @1, state, "cannot combine RGBA and XYZW swizzle "
693 $$.swizzle = MAKE_SWIZZLE4($1.swz, $3.swz, $5.swz, $7.swz);
694 $$.mask = ($1.negate) | ($3.negate << 1) | ($5.negate << 2)
699 extSwizComp: optionalSign extSwizSel
702 $$.negate = ($1) ? 1 : 0;
708 if (($1 != 0) && ($1 != 1)) {
709 yyerror(& @1, state, "invalid extended swizzle selector");
713 $$.swz = ($1 == 0) ? SWIZZLE_ZERO : SWIZZLE_ONE;
715 /* 0 and 1 are valid for both RGBA swizzle names and XYZW
725 if (strlen($1) > 1) {
726 yyerror(& @1, state, "invalid extended swizzle selector");
769 yyerror(& @1, state, "invalid extended swizzle selector");
776 srcReg: USED_IDENTIFIER /* temporaryReg | progParamSingle */
778 struct asm_symbol *const s = (struct asm_symbol *)
779 _mesa_symbol_table_find_symbol(state->st, 0, $1);
784 yyerror(& @1, state, "invalid operand variable");
786 } else if ((s->type != at_param) && (s->type != at_temp)
787 && (s->type != at_attrib)) {
788 yyerror(& @1, state, "invalid operand variable");
790 } else if ((s->type == at_param) && s->param_is_array) {
791 yyerror(& @1, state, "non-array access to array PARAM");
798 set_src_reg(& $$, PROGRAM_TEMPORARY, s->temp_binding);
801 set_src_reg_swz(& $$, s->param_binding_type,
802 s->param_binding_begin,
803 s->param_binding_swizzle);
806 set_src_reg(& $$, PROGRAM_INPUT, s->attrib_binding);
807 state->prog->InputsRead |= BITFIELD64_BIT($$.Base.Index);
809 if (!validate_inputs(& @1, state)) {
821 set_src_reg(& $$, PROGRAM_INPUT, $1);
822 state->prog->InputsRead |= BITFIELD64_BIT($$.Base.Index);
824 if (!validate_inputs(& @1, state)) {
828 | progParamArray '[' progParamArrayMem ']'
830 if (! $3.Base.RelAddr
831 && ((unsigned) $3.Base.Index >= $1->param_binding_length)) {
832 yyerror(& @3, state, "out of bounds array access");
837 $$.Base.File = $1->param_binding_type;
839 if ($3.Base.RelAddr) {
840 state->prog->IndirectRegisterFiles |= (1 << $$.Base.File);
841 $1->param_accessed_indirectly = 1;
844 $$.Base.Index = $3.Base.Index;
847 $$.Base.Index = $1->param_binding_begin + $3.Base.Index;
852 gl_register_file file = ($1.name != NULL)
853 ? $1.param_binding_type
855 set_src_reg_swz(& $$, file, $1.param_binding_begin,
856 $1.param_binding_swizzle);
860 dstReg: resultBinding
862 set_dst_reg(& $$, PROGRAM_OUTPUT, $1);
864 | USED_IDENTIFIER /* temporaryReg | vertexResultReg */
866 struct asm_symbol *const s = (struct asm_symbol *)
867 _mesa_symbol_table_find_symbol(state->st, 0, $1);
872 yyerror(& @1, state, "invalid operand variable");
874 } else if ((s->type != at_output) && (s->type != at_temp)) {
875 yyerror(& @1, state, "invalid operand variable");
881 set_dst_reg(& $$, PROGRAM_TEMPORARY, s->temp_binding);
884 set_dst_reg(& $$, PROGRAM_OUTPUT, s->output_binding);
887 set_dst_reg(& $$, s->param_binding_type, s->param_binding_begin);
893 progParamArray: USED_IDENTIFIER
895 struct asm_symbol *const s = (struct asm_symbol *)
896 _mesa_symbol_table_find_symbol(state->st, 0, $1);
901 yyerror(& @1, state, "invalid operand variable");
903 } else if ((s->type != at_param) || !s->param_is_array) {
904 yyerror(& @1, state, "array access to non-PARAM variable");
912 progParamArrayMem: progParamArrayAbs | progParamArrayRel;
914 progParamArrayAbs: INTEGER
921 progParamArrayRel: addrReg addrComponent addrRegRelOffset
923 /* FINISHME: Add support for multiple address registers.
925 /* FINISHME: Add support for 4-component address registers.
933 addrRegRelOffset: { $$ = 0; }
934 | '+' addrRegPosOffset { $$ = $2; }
935 | '-' addrRegNegOffset { $$ = -$2; }
938 addrRegPosOffset: INTEGER
940 if (($1 < 0) || ($1 > (state->limits->MaxAddressOffset - 1))) {
942 _mesa_snprintf(s, sizeof(s),
943 "relative address offset too large (%d)", $1);
944 yyerror(& @1, state, s);
952 addrRegNegOffset: INTEGER
954 if (($1 < 0) || ($1 > state->limits->MaxAddressOffset)) {
956 _mesa_snprintf(s, sizeof(s),
957 "relative address offset too large (%d)", $1);
958 yyerror(& @1, state, s);
966 addrReg: USED_IDENTIFIER
968 struct asm_symbol *const s = (struct asm_symbol *)
969 _mesa_symbol_table_find_symbol(state->st, 0, $1);
974 yyerror(& @1, state, "invalid array member");
976 } else if (s->type != at_address) {
978 "invalid variable for indexed array access");
988 if ($1.mask != WRITEMASK_X) {
989 yyerror(& @1, state, "invalid address component selector");
999 if ($1.mask != WRITEMASK_X) {
1000 yyerror(& @1, state,
1001 "address register write mask must be \".x\"");
1009 scalarSuffix: MASK1;
1011 swizzleSuffix: MASK1
1014 | { $$.swizzle = SWIZZLE_NOOP; $$.mask = WRITEMASK_XYZW; }
1017 optionalMask: MASK4 | MASK3 | MASK2 | MASK1
1018 | { $$.swizzle = SWIZZLE_NOOP; $$.mask = WRITEMASK_XYZW; }
1021 optionalCcMask: '(' ccTest ')'
1031 $$.CondMask = COND_TR;
1032 $$.CondSwizzle = SWIZZLE_NOOP;
1037 ccTest: ccMaskRule swizzleSuffix
1040 $$.CondSwizzle = $2.swizzle;
1044 ccTest2: ccMaskRule2 swizzleSuffix
1047 $$.CondSwizzle = $2.swizzle;
1051 ccMaskRule: IDENTIFIER
1053 const int cond = _mesa_parse_cc($1);
1054 if ((cond == 0) || ($1[2] != '\0')) {
1055 char *const err_str =
1056 make_error_string("invalid condition code \"%s\"", $1);
1058 yyerror(& @1, state, (err_str != NULL)
1059 ? err_str : "invalid condition code");
1061 if (err_str != NULL) {
1069 $$.CondSwizzle = SWIZZLE_NOOP;
1074 ccMaskRule2: USED_IDENTIFIER
1076 const int cond = _mesa_parse_cc($1);
1077 if ((cond == 0) || ($1[2] != '\0')) {
1078 char *const err_str =
1079 make_error_string("invalid condition code \"%s\"", $1);
1081 yyerror(& @1, state, (err_str != NULL)
1082 ? err_str : "invalid condition code");
1084 if (err_str != NULL) {
1092 $$.CondSwizzle = SWIZZLE_NOOP;
1097 namingStatement: ATTRIB_statement
1105 ATTRIB_statement: ATTRIB IDENTIFIER '=' attribBinding
1107 struct asm_symbol *const s =
1108 declare_variable(state, $2, at_attrib, & @2);
1114 s->attrib_binding = $4;
1115 state->InputsBound |= BITFIELD64_BIT(s->attrib_binding);
1117 if (!validate_inputs(& @4, state)) {
1124 attribBinding: VERTEX vtxAttribItem
1128 | FRAGMENT fragAttribItem
1134 vtxAttribItem: POSITION
1136 $$ = VERT_ATTRIB_POS;
1138 | WEIGHT vtxOptWeightNum
1140 $$ = VERT_ATTRIB_WEIGHT;
1144 $$ = VERT_ATTRIB_NORMAL;
1146 | COLOR optColorType
1148 if (!state->ctx->Extensions.EXT_secondary_color) {
1149 yyerror(& @2, state, "GL_EXT_secondary_color not supported");
1153 $$ = VERT_ATTRIB_COLOR0 + $2;
1157 if (!state->ctx->Extensions.EXT_fog_coord) {
1158 yyerror(& @1, state, "GL_EXT_fog_coord not supported");
1162 $$ = VERT_ATTRIB_FOG;
1164 | TEXCOORD optTexCoordUnitNum
1166 $$ = VERT_ATTRIB_TEX0 + $2;
1168 | MATRIXINDEX '[' vtxWeightNum ']'
1170 yyerror(& @1, state, "GL_ARB_matrix_palette not supported");
1173 | VTXATTRIB '[' vtxAttribNum ']'
1175 $$ = VERT_ATTRIB_GENERIC0 + $3;
1179 vtxAttribNum: INTEGER
1181 if ((unsigned) $1 >= state->limits->MaxAttribs) {
1182 yyerror(& @1, state, "invalid vertex attribute reference");
1190 vtxOptWeightNum: | '[' vtxWeightNum ']';
1191 vtxWeightNum: INTEGER;
1193 fragAttribItem: POSITION
1195 $$ = FRAG_ATTRIB_WPOS;
1197 | COLOR optColorType
1199 $$ = FRAG_ATTRIB_COL0 + $2;
1203 $$ = FRAG_ATTRIB_FOGC;
1205 | TEXCOORD optTexCoordUnitNum
1207 $$ = FRAG_ATTRIB_TEX0 + $2;
1211 PARAM_statement: PARAM_singleStmt | PARAM_multipleStmt;
1213 PARAM_singleStmt: PARAM IDENTIFIER paramSingleInit
1215 struct asm_symbol *const s =
1216 declare_variable(state, $2, at_param, & @2);
1222 s->param_binding_type = $3.param_binding_type;
1223 s->param_binding_begin = $3.param_binding_begin;
1224 s->param_binding_length = $3.param_binding_length;
1225 s->param_binding_swizzle = $3.param_binding_swizzle;
1226 s->param_is_array = 0;
1231 PARAM_multipleStmt: PARAM IDENTIFIER '[' optArraySize ']' paramMultipleInit
1233 if (($4 != 0) && ((unsigned) $4 != $6.param_binding_length)) {
1235 yyerror(& @4, state,
1236 "parameter array size and number of bindings must match");
1239 struct asm_symbol *const s =
1240 declare_variable(state, $2, $6.type, & @2);
1246 s->param_binding_type = $6.param_binding_type;
1247 s->param_binding_begin = $6.param_binding_begin;
1248 s->param_binding_length = $6.param_binding_length;
1249 s->param_binding_swizzle = SWIZZLE_XYZW;
1250 s->param_is_array = 1;
1262 if (($1 < 1) || ((unsigned) $1 > state->limits->MaxParameters)) {
1264 _mesa_snprintf(msg, sizeof(msg),
1265 "invalid parameter array size (size=%d max=%u)",
1266 $1, state->limits->MaxParameters);
1267 yyerror(& @1, state, msg);
1275 paramSingleInit: '=' paramSingleItemDecl
1281 paramMultipleInit: '=' '{' paramMultInitList '}'
1287 paramMultInitList: paramMultipleItem
1288 | paramMultInitList ',' paramMultipleItem
1290 $1.param_binding_length += $3.param_binding_length;
1295 paramSingleItemDecl: stateSingleItem
1297 memset(& $$, 0, sizeof($$));
1298 $$.param_binding_begin = ~0;
1299 initialize_symbol_from_state(state->prog, & $$, $1);
1303 memset(& $$, 0, sizeof($$));
1304 $$.param_binding_begin = ~0;
1305 initialize_symbol_from_param(state->prog, & $$, $1);
1309 memset(& $$, 0, sizeof($$));
1310 $$.param_binding_begin = ~0;
1311 initialize_symbol_from_const(state->prog, & $$, & $1, GL_TRUE);
1315 paramSingleItemUse: stateSingleItem
1317 memset(& $$, 0, sizeof($$));
1318 $$.param_binding_begin = ~0;
1319 initialize_symbol_from_state(state->prog, & $$, $1);
1323 memset(& $$, 0, sizeof($$));
1324 $$.param_binding_begin = ~0;
1325 initialize_symbol_from_param(state->prog, & $$, $1);
1329 memset(& $$, 0, sizeof($$));
1330 $$.param_binding_begin = ~0;
1331 initialize_symbol_from_const(state->prog, & $$, & $1, GL_TRUE);
1335 paramMultipleItem: stateMultipleItem
1337 memset(& $$, 0, sizeof($$));
1338 $$.param_binding_begin = ~0;
1339 initialize_symbol_from_state(state->prog, & $$, $1);
1341 | programMultipleItem
1343 memset(& $$, 0, sizeof($$));
1344 $$.param_binding_begin = ~0;
1345 initialize_symbol_from_param(state->prog, & $$, $1);
1349 memset(& $$, 0, sizeof($$));
1350 $$.param_binding_begin = ~0;
1351 initialize_symbol_from_const(state->prog, & $$, & $1, GL_FALSE);
1355 stateMultipleItem: stateSingleItem { memcpy($$, $1, sizeof($$)); }
1356 | STATE stateMatrixRows { memcpy($$, $2, sizeof($$)); }
1359 stateSingleItem: STATE stateMaterialItem { memcpy($$, $2, sizeof($$)); }
1360 | STATE stateLightItem { memcpy($$, $2, sizeof($$)); }
1361 | STATE stateLightModelItem { memcpy($$, $2, sizeof($$)); }
1362 | STATE stateLightProdItem { memcpy($$, $2, sizeof($$)); }
1363 | STATE stateTexGenItem { memcpy($$, $2, sizeof($$)); }
1364 | STATE stateTexEnvItem { memcpy($$, $2, sizeof($$)); }
1365 | STATE stateFogItem { memcpy($$, $2, sizeof($$)); }
1366 | STATE stateClipPlaneItem { memcpy($$, $2, sizeof($$)); }
1367 | STATE statePointItem { memcpy($$, $2, sizeof($$)); }
1368 | STATE stateMatrixRow { memcpy($$, $2, sizeof($$)); }
1369 | STATE stateDepthItem { memcpy($$, $2, sizeof($$)); }
1372 stateMaterialItem: MATERIAL optFaceType stateMatProperty
1374 memset($$, 0, sizeof($$));
1375 $$[0] = STATE_MATERIAL;
1381 stateMatProperty: ambDiffSpecProperty
1387 $$ = STATE_EMISSION;
1391 $$ = STATE_SHININESS;
1395 stateLightItem: LIGHT '[' stateLightNumber ']' stateLightProperty
1397 memset($$, 0, sizeof($$));
1398 $$[0] = STATE_LIGHT;
1404 stateLightProperty: ambDiffSpecProperty
1410 $$ = STATE_POSITION;
1414 if (!state->ctx->Extensions.EXT_point_parameters) {
1415 yyerror(& @1, state, "GL_ARB_point_parameters not supported");
1419 $$ = STATE_ATTENUATION;
1421 | SPOT stateSpotProperty
1427 $$ = STATE_HALF_VECTOR;
1431 stateSpotProperty: DIRECTION
1433 $$ = STATE_SPOT_DIRECTION;
1437 stateLightModelItem: LIGHTMODEL stateLModProperty
1444 stateLModProperty: AMBIENT
1446 memset($$, 0, sizeof($$));
1447 $$[0] = STATE_LIGHTMODEL_AMBIENT;
1449 | optFaceType SCENECOLOR
1451 memset($$, 0, sizeof($$));
1452 $$[0] = STATE_LIGHTMODEL_SCENECOLOR;
1457 stateLightProdItem: LIGHTPROD '[' stateLightNumber ']' optFaceType stateLProdProperty
1459 memset($$, 0, sizeof($$));
1460 $$[0] = STATE_LIGHTPROD;
1467 stateLProdProperty: ambDiffSpecProperty;
1469 stateTexEnvItem: TEXENV optLegacyTexUnitNum stateTexEnvProperty
1471 memset($$, 0, sizeof($$));
1477 stateTexEnvProperty: COLOR
1479 $$ = STATE_TEXENV_COLOR;
1483 ambDiffSpecProperty: AMBIENT
1493 $$ = STATE_SPECULAR;
1497 stateLightNumber: INTEGER
1499 if ((unsigned) $1 >= state->MaxLights) {
1500 yyerror(& @1, state, "invalid light selector");
1508 stateTexGenItem: TEXGEN optTexCoordUnitNum stateTexGenType stateTexGenCoord
1510 memset($$, 0, sizeof($$));
1511 $$[0] = STATE_TEXGEN;
1517 stateTexGenType: EYE
1519 $$ = STATE_TEXGEN_EYE_S;
1523 $$ = STATE_TEXGEN_OBJECT_S;
1526 stateTexGenCoord: TEXGEN_S
1528 $$ = STATE_TEXGEN_EYE_S - STATE_TEXGEN_EYE_S;
1532 $$ = STATE_TEXGEN_EYE_T - STATE_TEXGEN_EYE_S;
1536 $$ = STATE_TEXGEN_EYE_R - STATE_TEXGEN_EYE_S;
1540 $$ = STATE_TEXGEN_EYE_Q - STATE_TEXGEN_EYE_S;
1544 stateFogItem: FOG stateFogProperty
1546 memset($$, 0, sizeof($$));
1551 stateFogProperty: COLOR
1553 $$ = STATE_FOG_COLOR;
1557 $$ = STATE_FOG_PARAMS;
1561 stateClipPlaneItem: CLIP '[' stateClipPlaneNum ']' PLANE
1563 memset($$, 0, sizeof($$));
1564 $$[0] = STATE_CLIPPLANE;
1569 stateClipPlaneNum: INTEGER
1571 if ((unsigned) $1 >= state->MaxClipPlanes) {
1572 yyerror(& @1, state, "invalid clip plane selector");
1580 statePointItem: POINT_TOK statePointProperty
1582 memset($$, 0, sizeof($$));
1587 statePointProperty: SIZE_TOK
1589 $$ = STATE_POINT_SIZE;
1593 $$ = STATE_POINT_ATTENUATION;
1597 stateMatrixRow: stateMatrixItem ROW '[' stateMatrixRowNum ']'
1607 stateMatrixRows: stateMatrixItem optMatrixRows
1622 | ROW '[' stateMatrixRowNum DOT_DOT stateMatrixRowNum ']'
1624 /* It seems logical that the matrix row range specifier would have
1625 * to specify a range or more than one row (i.e., $5 > $3).
1626 * However, the ARB_vertex_program spec says "a program will fail
1627 * to load if <a> is greater than <b>." This means that $3 == $5
1631 yyerror(& @3, state, "invalid matrix row range");
1640 stateMatrixItem: MATRIX stateMatrixName stateOptMatModifier
1648 stateOptMatModifier:
1658 stateMatModifier: INVERSE
1660 $$ = STATE_MATRIX_INVERSE;
1664 $$ = STATE_MATRIX_TRANSPOSE;
1668 $$ = STATE_MATRIX_INVTRANS;
1672 stateMatrixRowNum: INTEGER
1675 yyerror(& @1, state, "invalid matrix row reference");
1683 stateMatrixName: MODELVIEW stateOptModMatNum
1685 $$[0] = STATE_MODELVIEW_MATRIX;
1690 $$[0] = STATE_PROJECTION_MATRIX;
1695 $$[0] = STATE_MVP_MATRIX;
1698 | TEXTURE optTexCoordUnitNum
1700 $$[0] = STATE_TEXTURE_MATRIX;
1703 | PALETTE '[' statePaletteMatNum ']'
1705 yyerror(& @1, state, "GL_ARB_matrix_palette not supported");
1708 | MAT_PROGRAM '[' stateProgramMatNum ']'
1710 $$[0] = STATE_PROGRAM_MATRIX;
1719 | '[' stateModMatNum ']'
1724 stateModMatNum: INTEGER
1726 /* Since GL_ARB_vertex_blend isn't supported, only modelview matrix
1730 yyerror(& @1, state, "invalid modelview matrix index");
1737 statePaletteMatNum: INTEGER
1739 /* Since GL_ARB_matrix_palette isn't supported, just let any value
1740 * through here. The error will be generated later.
1745 stateProgramMatNum: INTEGER
1747 if ((unsigned) $1 >= state->MaxProgramMatrices) {
1748 yyerror(& @1, state, "invalid program matrix selector");
1756 stateDepthItem: DEPTH RANGE
1758 memset($$, 0, sizeof($$));
1759 $$[0] = STATE_DEPTH_RANGE;
1764 programSingleItem: progEnvParam | progLocalParam;
1766 programMultipleItem: progEnvParams | progLocalParams;
1768 progEnvParams: PROGRAM ENV '[' progEnvParamNums ']'
1770 memset($$, 0, sizeof($$));
1771 $$[0] = state->state_param_enum;
1778 progEnvParamNums: progEnvParamNum
1783 | progEnvParamNum DOT_DOT progEnvParamNum
1790 progEnvParam: PROGRAM ENV '[' progEnvParamNum ']'
1792 memset($$, 0, sizeof($$));
1793 $$[0] = state->state_param_enum;
1800 progLocalParams: PROGRAM LOCAL '[' progLocalParamNums ']'
1802 memset($$, 0, sizeof($$));
1803 $$[0] = state->state_param_enum;
1804 $$[1] = STATE_LOCAL;
1809 progLocalParamNums: progLocalParamNum
1814 | progLocalParamNum DOT_DOT progLocalParamNum
1821 progLocalParam: PROGRAM LOCAL '[' progLocalParamNum ']'
1823 memset($$, 0, sizeof($$));
1824 $$[0] = state->state_param_enum;
1825 $$[1] = STATE_LOCAL;
1831 progEnvParamNum: INTEGER
1833 if ((unsigned) $1 >= state->limits->MaxEnvParams) {
1834 yyerror(& @1, state, "invalid environment parameter reference");
1841 progLocalParamNum: INTEGER
1843 if ((unsigned) $1 >= state->limits->MaxLocalParams) {
1844 yyerror(& @1, state, "invalid local parameter reference");
1853 paramConstDecl: paramConstScalarDecl | paramConstVector;
1854 paramConstUse: paramConstScalarUse | paramConstVector;
1856 paramConstScalarDecl: signedFloatConstant
1866 paramConstScalarUse: REAL
1877 $$.data[0].f = (float) $1;
1878 $$.data[1].f = (float) $1;
1879 $$.data[2].f = (float) $1;
1880 $$.data[3].f = (float) $1;
1884 paramConstVector: '{' signedFloatConstant '}'
1888 $$.data[1].f = 0.0f;
1889 $$.data[2].f = 0.0f;
1890 $$.data[3].f = 1.0f;
1892 | '{' signedFloatConstant ',' signedFloatConstant '}'
1897 $$.data[2].f = 0.0f;
1898 $$.data[3].f = 1.0f;
1900 | '{' signedFloatConstant ',' signedFloatConstant ','
1901 signedFloatConstant '}'
1907 $$.data[3].f = 1.0f;
1909 | '{' signedFloatConstant ',' signedFloatConstant ','
1910 signedFloatConstant ',' signedFloatConstant '}'
1920 signedFloatConstant: optionalSign REAL
1922 $$ = ($1) ? -$2 : $2;
1924 | optionalSign INTEGER
1926 $$ = (float)(($1) ? -$2 : $2);
1930 optionalSign: '+' { $$ = FALSE; }
1931 | '-' { $$ = TRUE; }
1935 TEMP_statement: optVarSize TEMP { $<integer>$ = $2; } varNameList
1940 /* NV_fragment_program_option defines the size qualifiers in a
1941 * fairly broken way. "SHORT" or "LONG" can optionally be used
1942 * before TEMP or OUTPUT. However, neither is a reserved word!
1943 * This means that we have to parse it as an identifier, then check
1944 * to make sure it's one of the valid values. *sigh*
1946 * In addition, the grammar in the extension spec does *not* allow
1947 * the size specifier to be optional, but all known implementations
1950 if (!state->option.NV_fragment) {
1951 yyerror(& @1, state, "unexpected IDENTIFIER");
1955 if (strcmp("SHORT", $1) == 0) {
1956 } else if (strcmp("LONG", $1) == 0) {
1958 char *const err_str =
1959 make_error_string("invalid storage size specifier \"%s\"",
1962 yyerror(& @1, state, (err_str != NULL)
1963 ? err_str : "invalid storage size specifier");
1965 if (err_str != NULL) {
1977 ADDRESS_statement: ADDRESS { $<integer>$ = $1; } varNameList
1980 varNameList: varNameList ',' IDENTIFIER
1982 if (!declare_variable(state, $3, $<integer>0, & @3)) {
1989 if (!declare_variable(state, $1, $<integer>0, & @1)) {
1996 OUTPUT_statement: optVarSize OUTPUT IDENTIFIER '=' resultBinding
1998 struct asm_symbol *const s =
1999 declare_variable(state, $3, at_output, & @3);
2005 s->output_binding = $5;
2010 resultBinding: RESULT POSITION
2012 if (state->mode == ARB_vertex) {
2013 $$ = VERT_RESULT_HPOS;
2015 yyerror(& @2, state, "invalid program result name");
2021 if (state->mode == ARB_vertex) {
2022 $$ = VERT_RESULT_FOGC;
2024 yyerror(& @2, state, "invalid program result name");
2028 | RESULT resultColBinding
2034 if (state->mode == ARB_vertex) {
2035 $$ = VERT_RESULT_PSIZ;
2037 yyerror(& @2, state, "invalid program result name");
2041 | RESULT TEXCOORD optTexCoordUnitNum
2043 if (state->mode == ARB_vertex) {
2044 $$ = VERT_RESULT_TEX0 + $3;
2046 yyerror(& @2, state, "invalid program result name");
2052 if (state->mode == ARB_fragment) {
2053 $$ = FRAG_RESULT_DEPTH;
2055 yyerror(& @2, state, "invalid program result name");
2061 resultColBinding: COLOR optResultFaceType optResultColorType
2069 if (state->mode == ARB_vertex) {
2070 $$ = VERT_RESULT_COL0;
2072 if (state->option.DrawBuffers)
2073 $$ = FRAG_RESULT_DATA0;
2075 $$ = FRAG_RESULT_COLOR;
2080 if (state->mode == ARB_vertex) {
2081 yyerror(& @1, state, "invalid program result name");
2084 if (!state->option.DrawBuffers) {
2085 /* From the ARB_draw_buffers spec (same text exists
2086 * for ATI_draw_buffers):
2088 * If this option is not specified, a fragment
2089 * program that attempts to bind
2090 * "result.color[n]" will fail to load, and only
2091 * "result.color" will be allowed.
2093 yyerror(& @1, state,
2094 "result.color[] used without "
2095 "`OPTION ARB_draw_buffers' or "
2096 "`OPTION ATI_draw_buffers'");
2098 } else if ($2 >= state->MaxDrawBuffers) {
2099 yyerror(& @1, state,
2100 "result.color[] exceeds MAX_DRAW_BUFFERS_ARB");
2103 $$ = FRAG_RESULT_DATA0 + $2;
2108 if (state->mode == ARB_vertex) {
2109 $$ = VERT_RESULT_COL0;
2111 yyerror(& @1, state, "invalid program result name");
2117 if (state->mode == ARB_vertex) {
2118 $$ = VERT_RESULT_BFC0;
2120 yyerror(& @1, state, "invalid program result name");
2132 if (state->mode == ARB_vertex) {
2135 yyerror(& @1, state, "invalid program result name");
2141 if (state->mode == ARB_vertex) {
2144 yyerror(& @1, state, "invalid program result name");
2150 optFaceType: { $$ = 0; }
2155 optColorType: { $$ = 0; }
2156 | PRIMARY { $$ = 0; }
2157 | SECONDARY { $$ = 1; }
2160 optTexCoordUnitNum: { $$ = 0; }
2161 | '[' texCoordUnitNum ']' { $$ = $2; }
2164 optTexImageUnitNum: { $$ = 0; }
2165 | '[' texImageUnitNum ']' { $$ = $2; }
2168 optLegacyTexUnitNum: { $$ = 0; }
2169 | '[' legacyTexUnitNum ']' { $$ = $2; }
2172 texCoordUnitNum: INTEGER
2174 if ((unsigned) $1 >= state->MaxTextureCoordUnits) {
2175 yyerror(& @1, state, "invalid texture coordinate unit selector");
2183 texImageUnitNum: INTEGER
2185 if ((unsigned) $1 >= state->MaxTextureImageUnits) {
2186 yyerror(& @1, state, "invalid texture image unit selector");
2194 legacyTexUnitNum: INTEGER
2196 if ((unsigned) $1 >= state->MaxTextureUnits) {
2197 yyerror(& @1, state, "invalid texture unit selector");
2205 ALIAS_statement: ALIAS IDENTIFIER '=' USED_IDENTIFIER
2207 struct asm_symbol *exist = (struct asm_symbol *)
2208 _mesa_symbol_table_find_symbol(state->st, 0, $2);
2209 struct asm_symbol *target = (struct asm_symbol *)
2210 _mesa_symbol_table_find_symbol(state->st, 0, $4);
2214 if (exist != NULL) {
2216 _mesa_snprintf(m, sizeof(m), "redeclared identifier: %s", $2);
2218 yyerror(& @2, state, m);
2220 } else if (target == NULL) {
2222 yyerror(& @4, state,
2223 "undefined variable binding in ALIAS statement");
2226 _mesa_symbol_table_add_symbol(state->st, 0, $2, target);
2238 asm_instruction_set_operands(struct asm_instruction *inst,
2239 const struct prog_dst_register *dst,
2240 const struct asm_src_register *src0,
2241 const struct asm_src_register *src1,
2242 const struct asm_src_register *src2)
2244 /* In the core ARB extensions only the KIL instruction doesn't have a
2245 * destination register.
2248 init_dst_reg(& inst->Base.DstReg);
2250 inst->Base.DstReg = *dst;
2253 /* The only instruction that doesn't have any source registers is the
2254 * condition-code based KIL instruction added by NV_fragment_program_option.
2257 inst->Base.SrcReg[0] = src0->Base;
2258 inst->SrcReg[0] = *src0;
2260 init_src_reg(& inst->SrcReg[0]);
2264 inst->Base.SrcReg[1] = src1->Base;
2265 inst->SrcReg[1] = *src1;
2267 init_src_reg(& inst->SrcReg[1]);
2271 inst->Base.SrcReg[2] = src2->Base;
2272 inst->SrcReg[2] = *src2;
2274 init_src_reg(& inst->SrcReg[2]);
2279 struct asm_instruction *
2280 asm_instruction_ctor(gl_inst_opcode op,
2281 const struct prog_dst_register *dst,
2282 const struct asm_src_register *src0,
2283 const struct asm_src_register *src1,
2284 const struct asm_src_register *src2)
2286 struct asm_instruction *inst = CALLOC_STRUCT(asm_instruction);
2289 _mesa_init_instructions(& inst->Base, 1);
2290 inst->Base.Opcode = op;
2292 asm_instruction_set_operands(inst, dst, src0, src1, src2);
2299 struct asm_instruction *
2300 asm_instruction_copy_ctor(const struct prog_instruction *base,
2301 const struct prog_dst_register *dst,
2302 const struct asm_src_register *src0,
2303 const struct asm_src_register *src1,
2304 const struct asm_src_register *src2)
2306 struct asm_instruction *inst = CALLOC_STRUCT(asm_instruction);
2309 _mesa_init_instructions(& inst->Base, 1);
2310 inst->Base.Opcode = base->Opcode;
2311 inst->Base.CondUpdate = base->CondUpdate;
2312 inst->Base.CondDst = base->CondDst;
2313 inst->Base.SaturateMode = base->SaturateMode;
2314 inst->Base.Precision = base->Precision;
2316 asm_instruction_set_operands(inst, dst, src0, src1, src2);
2324 init_dst_reg(struct prog_dst_register *r)
2326 memset(r, 0, sizeof(*r));
2327 r->File = PROGRAM_UNDEFINED;
2328 r->WriteMask = WRITEMASK_XYZW;
2329 r->CondMask = COND_TR;
2330 r->CondSwizzle = SWIZZLE_NOOP;
2334 /** Like init_dst_reg() but set the File and Index fields. */
2336 set_dst_reg(struct prog_dst_register *r, gl_register_file file, GLint index)
2338 const GLint maxIndex = 1 << INST_INDEX_BITS;
2339 const GLint minIndex = 0;
2340 ASSERT(index >= minIndex);
2342 ASSERT(index <= maxIndex);
2344 ASSERT(file == PROGRAM_TEMPORARY ||
2345 file == PROGRAM_ADDRESS ||
2346 file == PROGRAM_OUTPUT);
2347 memset(r, 0, sizeof(*r));
2350 r->WriteMask = WRITEMASK_XYZW;
2351 r->CondMask = COND_TR;
2352 r->CondSwizzle = SWIZZLE_NOOP;
2357 init_src_reg(struct asm_src_register *r)
2359 memset(r, 0, sizeof(*r));
2360 r->Base.File = PROGRAM_UNDEFINED;
2361 r->Base.Swizzle = SWIZZLE_NOOP;
2366 /** Like init_src_reg() but set the File and Index fields.
2367 * \return GL_TRUE if a valid src register, GL_FALSE otherwise
2370 set_src_reg(struct asm_src_register *r, gl_register_file file, GLint index)
2372 set_src_reg_swz(r, file, index, SWIZZLE_XYZW);
2377 set_src_reg_swz(struct asm_src_register *r, gl_register_file file, GLint index,
2380 const GLint maxIndex = (1 << INST_INDEX_BITS) - 1;
2381 const GLint minIndex = -(1 << INST_INDEX_BITS);
2382 ASSERT(file < PROGRAM_FILE_MAX);
2383 ASSERT(index >= minIndex);
2385 ASSERT(index <= maxIndex);
2387 memset(r, 0, sizeof(*r));
2388 r->Base.File = file;
2389 r->Base.Index = index;
2390 r->Base.Swizzle = swizzle;
2396 * Validate the set of inputs used by a program
2398 * Validates that legal sets of inputs are used by the program. In this case
2399 * "used" included both reading the input or binding the input to a name using
2400 * the \c ATTRIB command.
2403 * \c TRUE if the combination of inputs used is valid, \c FALSE otherwise.
2406 validate_inputs(struct YYLTYPE *locp, struct asm_parser_state *state)
2408 const GLbitfield64 inputs = state->prog->InputsRead | state->InputsBound;
2410 if (((inputs & VERT_BIT_FF_ALL) & (inputs >> VERT_ATTRIB_GENERIC0)) != 0) {
2411 yyerror(locp, state, "illegal use of generic attribute and name attribute");
2420 declare_variable(struct asm_parser_state *state, char *name, enum asm_type t,
2421 struct YYLTYPE *locp)
2423 struct asm_symbol *s = NULL;
2424 struct asm_symbol *exist = (struct asm_symbol *)
2425 _mesa_symbol_table_find_symbol(state->st, 0, name);
2428 if (exist != NULL) {
2429 yyerror(locp, state, "redeclared identifier");
2431 s = calloc(1, sizeof(struct asm_symbol));
2437 if (state->prog->NumTemporaries >= state->limits->MaxTemps) {
2438 yyerror(locp, state, "too many temporaries declared");
2443 s->temp_binding = state->prog->NumTemporaries;
2444 state->prog->NumTemporaries++;
2448 if (state->prog->NumAddressRegs >= state->limits->MaxAddressRegs) {
2449 yyerror(locp, state, "too many address registers declared");
2454 /* FINISHME: Add support for multiple address registers.
2456 state->prog->NumAddressRegs++;
2463 _mesa_symbol_table_add_symbol(state->st, 0, s->name, s);
2464 s->next = state->sym;
2472 int add_state_reference(struct gl_program_parameter_list *param_list,
2473 const gl_state_index tokens[STATE_LENGTH])
2475 const GLuint size = 4; /* XXX fix */
2479 name = _mesa_program_state_string(tokens);
2480 index = _mesa_add_parameter(param_list, PROGRAM_STATE_VAR, name,
2481 size, GL_NONE, NULL, tokens, 0x0);
2482 param_list->StateFlags |= _mesa_program_state_flags(tokens);
2484 /* free name string here since we duplicated it in add_parameter() */
2492 initialize_symbol_from_state(struct gl_program *prog,
2493 struct asm_symbol *param_var,
2494 const gl_state_index tokens[STATE_LENGTH])
2497 gl_state_index state_tokens[STATE_LENGTH];
2500 memcpy(state_tokens, tokens, sizeof(state_tokens));
2502 param_var->type = at_param;
2503 param_var->param_binding_type = PROGRAM_STATE_VAR;
2505 /* If we are adding a STATE_MATRIX that has multiple rows, we need to
2506 * unroll it and call add_state_reference() for each row
2508 if ((state_tokens[0] == STATE_MODELVIEW_MATRIX ||
2509 state_tokens[0] == STATE_PROJECTION_MATRIX ||
2510 state_tokens[0] == STATE_MVP_MATRIX ||
2511 state_tokens[0] == STATE_TEXTURE_MATRIX ||
2512 state_tokens[0] == STATE_PROGRAM_MATRIX)
2513 && (state_tokens[2] != state_tokens[3])) {
2515 const int first_row = state_tokens[2];
2516 const int last_row = state_tokens[3];
2518 for (row = first_row; row <= last_row; row++) {
2519 state_tokens[2] = state_tokens[3] = row;
2521 idx = add_state_reference(prog->Parameters, state_tokens);
2522 if (param_var->param_binding_begin == ~0U) {
2523 param_var->param_binding_begin = idx;
2524 param_var->param_binding_swizzle = SWIZZLE_XYZW;
2527 param_var->param_binding_length++;
2531 idx = add_state_reference(prog->Parameters, state_tokens);
2532 if (param_var->param_binding_begin == ~0U) {
2533 param_var->param_binding_begin = idx;
2534 param_var->param_binding_swizzle = SWIZZLE_XYZW;
2536 param_var->param_binding_length++;
2544 initialize_symbol_from_param(struct gl_program *prog,
2545 struct asm_symbol *param_var,
2546 const gl_state_index tokens[STATE_LENGTH])
2549 gl_state_index state_tokens[STATE_LENGTH];
2552 memcpy(state_tokens, tokens, sizeof(state_tokens));
2554 assert((state_tokens[0] == STATE_VERTEX_PROGRAM)
2555 || (state_tokens[0] == STATE_FRAGMENT_PROGRAM));
2556 assert((state_tokens[1] == STATE_ENV)
2557 || (state_tokens[1] == STATE_LOCAL));
2560 * The param type is STATE_VAR. The program parameter entry will
2561 * effectively be a pointer into the LOCAL or ENV parameter array.
2563 param_var->type = at_param;
2564 param_var->param_binding_type = PROGRAM_STATE_VAR;
2566 /* If we are adding a STATE_ENV or STATE_LOCAL that has multiple elements,
2567 * we need to unroll it and call add_state_reference() for each row
2569 if (state_tokens[2] != state_tokens[3]) {
2571 const int first_row = state_tokens[2];
2572 const int last_row = state_tokens[3];
2574 for (row = first_row; row <= last_row; row++) {
2575 state_tokens[2] = state_tokens[3] = row;
2577 idx = add_state_reference(prog->Parameters, state_tokens);
2578 if (param_var->param_binding_begin == ~0U) {
2579 param_var->param_binding_begin = idx;
2580 param_var->param_binding_swizzle = SWIZZLE_XYZW;
2582 param_var->param_binding_length++;
2586 idx = add_state_reference(prog->Parameters, state_tokens);
2587 if (param_var->param_binding_begin == ~0U) {
2588 param_var->param_binding_begin = idx;
2589 param_var->param_binding_swizzle = SWIZZLE_XYZW;
2591 param_var->param_binding_length++;
2599 * Put a float/vector constant/literal into the parameter list.
2600 * \param param_var returns info about the parameter/constant's location,
2601 * binding, type, etc.
2602 * \param vec the vector/constant to add
2603 * \param allowSwizzle if true, try to consolidate constants which only differ
2604 * by a swizzle. We don't want to do this when building
2605 * arrays of constants that may be indexed indirectly.
2606 * \return index of the constant in the parameter list.
2609 initialize_symbol_from_const(struct gl_program *prog,
2610 struct asm_symbol *param_var,
2611 const struct asm_vector *vec,
2612 GLboolean allowSwizzle)
2615 const int idx = _mesa_add_unnamed_constant(prog->Parameters,
2616 vec->data, vec->count,
2617 allowSwizzle ? &swizzle : NULL);
2619 param_var->type = at_param;
2620 param_var->param_binding_type = PROGRAM_CONSTANT;
2622 if (param_var->param_binding_begin == ~0U) {
2623 param_var->param_binding_begin = idx;
2624 param_var->param_binding_swizzle = allowSwizzle ? swizzle : SWIZZLE_XYZW;
2626 param_var->param_binding_length++;
2633 make_error_string(const char *fmt, ...)
2640 /* Call vsnprintf once to determine how large the final string is. Call it
2641 * again to do the actual formatting. from the vsnprintf manual page:
2643 * Upon successful return, these functions return the number of
2644 * characters printed (not including the trailing '\0' used to end
2645 * output to strings).
2647 va_start(args, fmt);
2648 length = 1 + vsnprintf(NULL, 0, fmt, args);
2651 str = malloc(length);
2653 va_start(args, fmt);
2654 vsnprintf(str, length, fmt, args);
2663 yyerror(YYLTYPE *locp, struct asm_parser_state *state, const char *s)
2668 err_str = make_error_string("glProgramStringARB(%s)\n", s);
2670 _mesa_error(state->ctx, GL_INVALID_OPERATION, "%s", err_str);
2674 err_str = make_error_string("line %u, char %u: error: %s\n",
2675 locp->first_line, locp->first_column, s);
2676 _mesa_set_program_error(state->ctx, locp->position, err_str);
2685 _mesa_parse_arb_program(struct gl_context *ctx, GLenum target, const GLubyte *str,
2686 GLsizei len, struct asm_parser_state *state)
2688 struct asm_instruction *inst;
2691 GLboolean result = GL_FALSE;
2693 struct asm_symbol *sym;
2696 state->prog->Target = target;
2697 state->prog->Parameters = _mesa_new_parameter_list();
2699 /* Make a copy of the program string and force it to be NUL-terminated.
2701 strz = (GLubyte *) malloc(len + 1);
2703 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glProgramStringARB");
2706 memcpy (strz, str, len);
2709 state->prog->String = strz;
2711 state->st = _mesa_symbol_table_ctor();
2713 state->limits = (target == GL_VERTEX_PROGRAM_ARB)
2714 ? & ctx->Const.VertexProgram
2715 : & ctx->Const.FragmentProgram;
2717 state->MaxTextureImageUnits = ctx->Const.MaxTextureImageUnits;
2718 state->MaxTextureCoordUnits = ctx->Const.MaxTextureCoordUnits;
2719 state->MaxTextureUnits = ctx->Const.MaxTextureUnits;
2720 state->MaxClipPlanes = ctx->Const.MaxClipPlanes;
2721 state->MaxLights = ctx->Const.MaxLights;
2722 state->MaxProgramMatrices = ctx->Const.MaxProgramMatrices;
2723 state->MaxDrawBuffers = ctx->Const.MaxDrawBuffers;
2725 state->state_param_enum = (target == GL_VERTEX_PROGRAM_ARB)
2726 ? STATE_VERTEX_PROGRAM : STATE_FRAGMENT_PROGRAM;
2728 _mesa_set_program_error(ctx, -1, NULL);
2730 _mesa_program_lexer_ctor(& state->scanner, state, (const char *) str, len);
2732 _mesa_program_lexer_dtor(state->scanner);
2735 if (ctx->Program.ErrorPos != -1) {
2739 if (! _mesa_layout_parameters(state)) {
2743 loc.first_column = 0;
2746 yyerror(& loc, state, "invalid PARAM usage");
2752 /* Add one instruction to store the "END" instruction.
2754 state->prog->Instructions =
2755 _mesa_alloc_instructions(state->prog->NumInstructions + 1);
2756 inst = state->inst_head;
2757 for (i = 0; i < state->prog->NumInstructions; i++) {
2758 struct asm_instruction *const temp = inst->next;
2760 state->prog->Instructions[i] = inst->Base;
2764 /* Finally, tag on an OPCODE_END instruction */
2766 const GLuint numInst = state->prog->NumInstructions;
2767 _mesa_init_instructions(state->prog->Instructions + numInst, 1);
2768 state->prog->Instructions[numInst].Opcode = OPCODE_END;
2770 state->prog->NumInstructions++;
2772 state->prog->NumParameters = state->prog->Parameters->NumParameters;
2773 state->prog->NumAttributes = _mesa_bitcount_64(state->prog->InputsRead);
2776 * Initialize native counts to logical counts. The device driver may
2777 * change them if program is translated into a hardware program.
2779 state->prog->NumNativeInstructions = state->prog->NumInstructions;
2780 state->prog->NumNativeTemporaries = state->prog->NumTemporaries;
2781 state->prog->NumNativeParameters = state->prog->NumParameters;
2782 state->prog->NumNativeAttributes = state->prog->NumAttributes;
2783 state->prog->NumNativeAddressRegs = state->prog->NumAddressRegs;
2788 for (inst = state->inst_head; inst != NULL; inst = temp) {
2793 state->inst_head = NULL;
2794 state->inst_tail = NULL;
2796 for (sym = state->sym; sym != NULL; sym = temp) {
2799 free((void *) sym->name);
2804 _mesa_symbol_table_dtor(state->st);