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 "shader/program.h"
31 #include "shader/prog_parameter.h"
32 #include "shader/prog_parameter_layout.h"
33 #include "shader/prog_statevars.h"
34 #include "shader/prog_instruction.h"
36 #include "shader/symbol_table.h"
37 #include "shader/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 $$ = asm_instruction_ctor(OPCODE_ARL, & $2, & $4, NULL, NULL);
383 VECTORop_instruction: VECTOR_OP maskedDstReg ',' swizzleSrcReg
385 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL);
389 SCALARop_instruction: SCALAR_OP maskedDstReg ',' scalarSrcReg
391 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL);
395 BINSCop_instruction: BINSC_OP maskedDstReg ',' scalarSrcReg ',' scalarSrcReg
397 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, NULL);
402 BINop_instruction: BIN_OP maskedDstReg ',' swizzleSrcReg ',' swizzleSrcReg
404 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, NULL);
408 TRIop_instruction: TRI_OP maskedDstReg ','
409 swizzleSrcReg ',' swizzleSrcReg ',' swizzleSrcReg
411 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, & $8);
415 SAMPLE_instruction: SAMPLE_OP maskedDstReg ',' swizzleSrcReg ',' texImageUnit ',' texTarget
417 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL);
419 const GLbitfield tex_mask = (1U << $6);
420 GLbitfield shadow_tex = 0;
421 GLbitfield target_mask = 0;
424 $$->Base.TexSrcUnit = $6;
427 shadow_tex = tex_mask;
429 $$->Base.TexSrcTarget = -$8;
430 $$->Base.TexShadow = 1;
432 $$->Base.TexSrcTarget = $8;
435 target_mask = (1U << $$->Base.TexSrcTarget);
437 /* If this texture unit was previously accessed and that access
438 * had a different texture target, generate an error.
440 * If this texture unit was previously accessed and that access
441 * had a different shadow mode, generate an error.
443 if ((state->prog->TexturesUsed[$6] != 0)
444 && ((state->prog->TexturesUsed[$6] != target_mask)
445 || ((state->prog->ShadowSamplers & tex_mask)
448 "multiple targets used on one texture image unit");
453 state->prog->TexturesUsed[$6] |= target_mask;
454 state->prog->ShadowSamplers |= shadow_tex;
459 KIL_instruction: KIL swizzleSrcReg
461 $$ = asm_instruction_ctor(OPCODE_KIL, NULL, & $2, NULL, NULL);
462 state->fragment.UsesKill = 1;
466 $$ = asm_instruction_ctor(OPCODE_KIL_NV, NULL, NULL, NULL, NULL);
467 $$->Base.DstReg.CondMask = $2.CondMask;
468 $$->Base.DstReg.CondSwizzle = $2.CondSwizzle;
469 $$->Base.DstReg.CondSrc = $2.CondSrc;
470 state->fragment.UsesKill = 1;
474 TXD_instruction: TXD_OP maskedDstReg ',' swizzleSrcReg ',' swizzleSrcReg ',' swizzleSrcReg ',' texImageUnit ',' texTarget
476 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, & $8);
478 const GLbitfield tex_mask = (1U << $10);
479 GLbitfield shadow_tex = 0;
480 GLbitfield target_mask = 0;
483 $$->Base.TexSrcUnit = $10;
486 shadow_tex = tex_mask;
488 $$->Base.TexSrcTarget = -$12;
489 $$->Base.TexShadow = 1;
491 $$->Base.TexSrcTarget = $12;
494 target_mask = (1U << $$->Base.TexSrcTarget);
496 /* If this texture unit was previously accessed and that access
497 * had a different texture target, generate an error.
499 * If this texture unit was previously accessed and that access
500 * had a different shadow mode, generate an error.
502 if ((state->prog->TexturesUsed[$10] != 0)
503 && ((state->prog->TexturesUsed[$10] != target_mask)
504 || ((state->prog->ShadowSamplers & tex_mask)
506 yyerror(& @12, state,
507 "multiple targets used on one texture image unit");
512 state->prog->TexturesUsed[$10] |= target_mask;
513 state->prog->ShadowSamplers |= shadow_tex;
518 texImageUnit: TEXTURE_UNIT optTexImageUnitNum
524 texTarget: TEX_1D { $$ = TEXTURE_1D_INDEX; }
525 | TEX_2D { $$ = TEXTURE_2D_INDEX; }
526 | TEX_3D { $$ = TEXTURE_3D_INDEX; }
527 | TEX_CUBE { $$ = TEXTURE_CUBE_INDEX; }
528 | TEX_RECT { $$ = TEXTURE_RECT_INDEX; }
529 | TEX_SHADOW1D { $$ = -TEXTURE_1D_INDEX; }
530 | TEX_SHADOW2D { $$ = -TEXTURE_2D_INDEX; }
531 | TEX_SHADOWRECT { $$ = -TEXTURE_RECT_INDEX; }
532 | TEX_ARRAY1D { $$ = TEXTURE_1D_ARRAY_INDEX; }
533 | TEX_ARRAY2D { $$ = TEXTURE_2D_ARRAY_INDEX; }
534 | TEX_ARRAYSHADOW1D { $$ = -TEXTURE_1D_ARRAY_INDEX; }
535 | TEX_ARRAYSHADOW2D { $$ = -TEXTURE_2D_ARRAY_INDEX; }
538 SWZ_instruction: SWZ maskedDstReg ',' srcReg ',' extendedSwizzle
540 /* FIXME: Is this correct? Should the extenedSwizzle be applied
541 * FIXME: to the existing swizzle?
543 $4.Base.Swizzle = $6.swizzle;
544 $4.Base.Negate = $6.mask;
546 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL);
550 scalarSrcReg: optionalSign scalarUse
555 $$.Base.Negate = ~$$.Base.Negate;
558 | optionalSign '|' scalarUse '|'
562 if (!state->option.NV_fragment) {
563 yyerror(& @2, state, "unexpected character '|'");
568 $$.Base.Negate = ~$$.Base.Negate;
575 scalarUse: srcReg scalarSuffix
579 $$.Base.Swizzle = _mesa_combine_swizzles($$.Base.Swizzle,
582 | paramConstScalarUse
584 struct asm_symbol temp_sym;
586 if (!state->option.NV_fragment) {
587 yyerror(& @1, state, "expected scalar suffix");
591 memset(& temp_sym, 0, sizeof(temp_sym));
592 temp_sym.param_binding_begin = ~0;
593 initialize_symbol_from_const(state->prog, & temp_sym, & $1, GL_TRUE);
595 set_src_reg_swz(& $$, PROGRAM_CONSTANT,
596 temp_sym.param_binding_begin,
597 temp_sym.param_binding_swizzle);
601 swizzleSrcReg: optionalSign srcReg swizzleSuffix
606 $$.Base.Negate = ~$$.Base.Negate;
609 $$.Base.Swizzle = _mesa_combine_swizzles($$.Base.Swizzle,
612 | optionalSign '|' srcReg swizzleSuffix '|'
616 if (!state->option.NV_fragment) {
617 yyerror(& @2, state, "unexpected character '|'");
622 $$.Base.Negate = ~$$.Base.Negate;
626 $$.Base.Swizzle = _mesa_combine_swizzles($$.Base.Swizzle,
632 maskedDstReg: dstReg optionalMask optionalCcMask
635 $$.WriteMask = $2.mask;
636 $$.CondMask = $3.CondMask;
637 $$.CondSwizzle = $3.CondSwizzle;
638 $$.CondSrc = $3.CondSrc;
640 if ($$.File == PROGRAM_OUTPUT) {
641 /* Technically speaking, this should check that it is in
642 * vertex program mode. However, PositionInvariant can never be
643 * set in fragment program mode, so it is somewhat irrelevant.
645 if (state->option.PositionInvariant
646 && ($$.Index == VERT_RESULT_HPOS)) {
647 yyerror(& @1, state, "position-invariant programs cannot "
652 state->prog->OutputsWritten |= BITFIELD64_BIT($$.Index);
657 maskedAddrReg: addrReg addrWriteMask
659 set_dst_reg(& $$, PROGRAM_ADDRESS, 0);
660 $$.WriteMask = $2.mask;
664 extendedSwizzle: extSwizComp ',' extSwizComp ',' extSwizComp ',' extSwizComp
666 const unsigned xyzw_valid =
668 | ($3.xyzw_valid << 1)
669 | ($5.xyzw_valid << 2)
670 | ($7.xyzw_valid << 3);
671 const unsigned rgba_valid =
673 | ($3.rgba_valid << 1)
674 | ($5.rgba_valid << 2)
675 | ($7.rgba_valid << 3);
677 /* All of the swizzle components have to be valid in either RGBA
678 * or XYZW. Note that 0 and 1 are valid in both, so both masks
679 * can have some bits set.
681 * We somewhat deviate from the spec here. It would be really hard
682 * to figure out which component is the error, and there probably
683 * isn't a lot of benefit.
685 if ((rgba_valid != 0x0f) && (xyzw_valid != 0x0f)) {
686 yyerror(& @1, state, "cannot combine RGBA and XYZW swizzle "
691 $$.swizzle = MAKE_SWIZZLE4($1.swz, $3.swz, $5.swz, $7.swz);
692 $$.mask = ($1.negate) | ($3.negate << 1) | ($5.negate << 2)
697 extSwizComp: optionalSign extSwizSel
700 $$.negate = ($1) ? 1 : 0;
706 if (($1 != 0) && ($1 != 1)) {
707 yyerror(& @1, state, "invalid extended swizzle selector");
711 $$.swz = ($1 == 0) ? SWIZZLE_ZERO : SWIZZLE_ONE;
713 /* 0 and 1 are valid for both RGBA swizzle names and XYZW
723 if (strlen($1) > 1) {
724 yyerror(& @1, state, "invalid extended swizzle selector");
767 yyerror(& @1, state, "invalid extended swizzle selector");
774 srcReg: USED_IDENTIFIER /* temporaryReg | progParamSingle */
776 struct asm_symbol *const s = (struct asm_symbol *)
777 _mesa_symbol_table_find_symbol(state->st, 0, $1);
782 yyerror(& @1, state, "invalid operand variable");
784 } else if ((s->type != at_param) && (s->type != at_temp)
785 && (s->type != at_attrib)) {
786 yyerror(& @1, state, "invalid operand variable");
788 } else if ((s->type == at_param) && s->param_is_array) {
789 yyerror(& @1, state, "non-array access to array PARAM");
796 set_src_reg(& $$, PROGRAM_TEMPORARY, s->temp_binding);
799 set_src_reg_swz(& $$, s->param_binding_type,
800 s->param_binding_begin,
801 s->param_binding_swizzle);
804 set_src_reg(& $$, PROGRAM_INPUT, s->attrib_binding);
805 state->prog->InputsRead |= (1U << $$.Base.Index);
807 if (!validate_inputs(& @1, state)) {
819 set_src_reg(& $$, PROGRAM_INPUT, $1);
820 state->prog->InputsRead |= (1U << $$.Base.Index);
822 if (!validate_inputs(& @1, state)) {
826 | progParamArray '[' progParamArrayMem ']'
828 if (! $3.Base.RelAddr
829 && ((unsigned) $3.Base.Index >= $1->param_binding_length)) {
830 yyerror(& @3, state, "out of bounds array access");
835 $$.Base.File = $1->param_binding_type;
837 if ($3.Base.RelAddr) {
838 $1->param_accessed_indirectly = 1;
841 $$.Base.Index = $3.Base.Index;
844 $$.Base.Index = $1->param_binding_begin + $3.Base.Index;
849 gl_register_file file = ($1.name != NULL)
850 ? $1.param_binding_type
852 set_src_reg_swz(& $$, file, $1.param_binding_begin,
853 $1.param_binding_swizzle);
857 dstReg: resultBinding
859 set_dst_reg(& $$, PROGRAM_OUTPUT, $1);
861 | USED_IDENTIFIER /* temporaryReg | vertexResultReg */
863 struct asm_symbol *const s = (struct asm_symbol *)
864 _mesa_symbol_table_find_symbol(state->st, 0, $1);
869 yyerror(& @1, state, "invalid operand variable");
871 } else if ((s->type != at_output) && (s->type != at_temp)) {
872 yyerror(& @1, state, "invalid operand variable");
878 set_dst_reg(& $$, PROGRAM_TEMPORARY, s->temp_binding);
881 set_dst_reg(& $$, PROGRAM_OUTPUT, s->output_binding);
884 set_dst_reg(& $$, s->param_binding_type, s->param_binding_begin);
890 progParamArray: USED_IDENTIFIER
892 struct asm_symbol *const s = (struct asm_symbol *)
893 _mesa_symbol_table_find_symbol(state->st, 0, $1);
898 yyerror(& @1, state, "invalid operand variable");
900 } else if ((s->type != at_param) || !s->param_is_array) {
901 yyerror(& @1, state, "array access to non-PARAM variable");
909 progParamArrayMem: progParamArrayAbs | progParamArrayRel;
911 progParamArrayAbs: INTEGER
918 progParamArrayRel: addrReg addrComponent addrRegRelOffset
920 /* FINISHME: Add support for multiple address registers.
922 /* FINISHME: Add support for 4-component address registers.
930 addrRegRelOffset: { $$ = 0; }
931 | '+' addrRegPosOffset { $$ = $2; }
932 | '-' addrRegNegOffset { $$ = -$2; }
935 addrRegPosOffset: INTEGER
937 if (($1 < 0) || ($1 > 63)) {
939 _mesa_snprintf(s, sizeof(s),
940 "relative address offset too large (%d)", $1);
941 yyerror(& @1, state, s);
949 addrRegNegOffset: INTEGER
951 if (($1 < 0) || ($1 > 64)) {
953 _mesa_snprintf(s, sizeof(s),
954 "relative address offset too large (%d)", $1);
955 yyerror(& @1, state, s);
963 addrReg: USED_IDENTIFIER
965 struct asm_symbol *const s = (struct asm_symbol *)
966 _mesa_symbol_table_find_symbol(state->st, 0, $1);
971 yyerror(& @1, state, "invalid array member");
973 } else if (s->type != at_address) {
975 "invalid variable for indexed array access");
985 if ($1.mask != WRITEMASK_X) {
986 yyerror(& @1, state, "invalid address component selector");
996 if ($1.mask != WRITEMASK_X) {
998 "address register write mask must be \".x\"");
1006 scalarSuffix: MASK1;
1008 swizzleSuffix: MASK1
1011 | { $$.swizzle = SWIZZLE_NOOP; $$.mask = WRITEMASK_XYZW; }
1014 optionalMask: MASK4 | MASK3 | MASK2 | MASK1
1015 | { $$.swizzle = SWIZZLE_NOOP; $$.mask = WRITEMASK_XYZW; }
1018 optionalCcMask: '(' ccTest ')'
1028 $$.CondMask = COND_TR;
1029 $$.CondSwizzle = SWIZZLE_NOOP;
1034 ccTest: ccMaskRule swizzleSuffix
1037 $$.CondSwizzle = $2.swizzle;
1041 ccTest2: ccMaskRule2 swizzleSuffix
1044 $$.CondSwizzle = $2.swizzle;
1048 ccMaskRule: IDENTIFIER
1050 const int cond = _mesa_parse_cc($1);
1051 if ((cond == 0) || ($1[2] != '\0')) {
1052 char *const err_str =
1053 make_error_string("invalid condition code \"%s\"", $1);
1055 yyerror(& @1, state, (err_str != NULL)
1056 ? err_str : "invalid condition code");
1058 if (err_str != NULL) {
1059 _mesa_free(err_str);
1066 $$.CondSwizzle = SWIZZLE_NOOP;
1071 ccMaskRule2: USED_IDENTIFIER
1073 const int cond = _mesa_parse_cc($1);
1074 if ((cond == 0) || ($1[2] != '\0')) {
1075 char *const err_str =
1076 make_error_string("invalid condition code \"%s\"", $1);
1078 yyerror(& @1, state, (err_str != NULL)
1079 ? err_str : "invalid condition code");
1081 if (err_str != NULL) {
1082 _mesa_free(err_str);
1089 $$.CondSwizzle = SWIZZLE_NOOP;
1094 namingStatement: ATTRIB_statement
1102 ATTRIB_statement: ATTRIB IDENTIFIER '=' attribBinding
1104 struct asm_symbol *const s =
1105 declare_variable(state, $2, at_attrib, & @2);
1111 s->attrib_binding = $4;
1112 state->InputsBound |= (1U << s->attrib_binding);
1114 if (!validate_inputs(& @4, state)) {
1121 attribBinding: VERTEX vtxAttribItem
1125 | FRAGMENT fragAttribItem
1131 vtxAttribItem: POSITION
1133 $$ = VERT_ATTRIB_POS;
1135 | WEIGHT vtxOptWeightNum
1137 $$ = VERT_ATTRIB_WEIGHT;
1141 $$ = VERT_ATTRIB_NORMAL;
1143 | COLOR optColorType
1145 if (!state->ctx->Extensions.EXT_secondary_color) {
1146 yyerror(& @2, state, "GL_EXT_secondary_color not supported");
1150 $$ = VERT_ATTRIB_COLOR0 + $2;
1154 if (!state->ctx->Extensions.EXT_fog_coord) {
1155 yyerror(& @1, state, "GL_EXT_fog_coord not supported");
1159 $$ = VERT_ATTRIB_FOG;
1161 | TEXCOORD optTexCoordUnitNum
1163 $$ = VERT_ATTRIB_TEX0 + $2;
1165 | MATRIXINDEX '[' vtxWeightNum ']'
1167 yyerror(& @1, state, "GL_ARB_matrix_palette not supported");
1170 | VTXATTRIB '[' vtxAttribNum ']'
1172 $$ = VERT_ATTRIB_GENERIC0 + $3;
1176 vtxAttribNum: INTEGER
1178 if ((unsigned) $1 >= state->limits->MaxAttribs) {
1179 yyerror(& @1, state, "invalid vertex attribute reference");
1187 vtxOptWeightNum: | '[' vtxWeightNum ']';
1188 vtxWeightNum: INTEGER;
1190 fragAttribItem: POSITION
1192 $$ = FRAG_ATTRIB_WPOS;
1194 | COLOR optColorType
1196 $$ = FRAG_ATTRIB_COL0 + $2;
1200 $$ = FRAG_ATTRIB_FOGC;
1202 | TEXCOORD optTexCoordUnitNum
1204 $$ = FRAG_ATTRIB_TEX0 + $2;
1208 PARAM_statement: PARAM_singleStmt | PARAM_multipleStmt;
1210 PARAM_singleStmt: PARAM IDENTIFIER paramSingleInit
1212 struct asm_symbol *const s =
1213 declare_variable(state, $2, at_param, & @2);
1219 s->param_binding_type = $3.param_binding_type;
1220 s->param_binding_begin = $3.param_binding_begin;
1221 s->param_binding_length = $3.param_binding_length;
1222 s->param_binding_swizzle = SWIZZLE_XYZW;
1223 s->param_is_array = 0;
1228 PARAM_multipleStmt: PARAM IDENTIFIER '[' optArraySize ']' paramMultipleInit
1230 if (($4 != 0) && ((unsigned) $4 != $6.param_binding_length)) {
1232 yyerror(& @4, state,
1233 "parameter array size and number of bindings must match");
1236 struct asm_symbol *const s =
1237 declare_variable(state, $2, $6.type, & @2);
1243 s->param_binding_type = $6.param_binding_type;
1244 s->param_binding_begin = $6.param_binding_begin;
1245 s->param_binding_length = $6.param_binding_length;
1246 s->param_binding_swizzle = SWIZZLE_XYZW;
1247 s->param_is_array = 1;
1259 if (($1 < 1) || ((unsigned) $1 > state->limits->MaxParameters)) {
1260 yyerror(& @1, state, "invalid parameter array size");
1268 paramSingleInit: '=' paramSingleItemDecl
1274 paramMultipleInit: '=' '{' paramMultInitList '}'
1280 paramMultInitList: paramMultipleItem
1281 | paramMultInitList ',' paramMultipleItem
1283 $1.param_binding_length += $3.param_binding_length;
1288 paramSingleItemDecl: stateSingleItem
1290 memset(& $$, 0, sizeof($$));
1291 $$.param_binding_begin = ~0;
1292 initialize_symbol_from_state(state->prog, & $$, $1);
1296 memset(& $$, 0, sizeof($$));
1297 $$.param_binding_begin = ~0;
1298 initialize_symbol_from_param(state->prog, & $$, $1);
1302 memset(& $$, 0, sizeof($$));
1303 $$.param_binding_begin = ~0;
1304 initialize_symbol_from_const(state->prog, & $$, & $1, GL_TRUE);
1308 paramSingleItemUse: stateSingleItem
1310 memset(& $$, 0, sizeof($$));
1311 $$.param_binding_begin = ~0;
1312 initialize_symbol_from_state(state->prog, & $$, $1);
1316 memset(& $$, 0, sizeof($$));
1317 $$.param_binding_begin = ~0;
1318 initialize_symbol_from_param(state->prog, & $$, $1);
1322 memset(& $$, 0, sizeof($$));
1323 $$.param_binding_begin = ~0;
1324 initialize_symbol_from_const(state->prog, & $$, & $1, GL_TRUE);
1328 paramMultipleItem: stateMultipleItem
1330 memset(& $$, 0, sizeof($$));
1331 $$.param_binding_begin = ~0;
1332 initialize_symbol_from_state(state->prog, & $$, $1);
1334 | programMultipleItem
1336 memset(& $$, 0, sizeof($$));
1337 $$.param_binding_begin = ~0;
1338 initialize_symbol_from_param(state->prog, & $$, $1);
1342 memset(& $$, 0, sizeof($$));
1343 $$.param_binding_begin = ~0;
1344 initialize_symbol_from_const(state->prog, & $$, & $1, GL_FALSE);
1348 stateMultipleItem: stateSingleItem { memcpy($$, $1, sizeof($$)); }
1349 | STATE stateMatrixRows { memcpy($$, $2, sizeof($$)); }
1352 stateSingleItem: STATE stateMaterialItem { memcpy($$, $2, sizeof($$)); }
1353 | STATE stateLightItem { memcpy($$, $2, sizeof($$)); }
1354 | STATE stateLightModelItem { memcpy($$, $2, sizeof($$)); }
1355 | STATE stateLightProdItem { memcpy($$, $2, sizeof($$)); }
1356 | STATE stateTexGenItem { memcpy($$, $2, sizeof($$)); }
1357 | STATE stateTexEnvItem { memcpy($$, $2, sizeof($$)); }
1358 | STATE stateFogItem { memcpy($$, $2, sizeof($$)); }
1359 | STATE stateClipPlaneItem { memcpy($$, $2, sizeof($$)); }
1360 | STATE statePointItem { memcpy($$, $2, sizeof($$)); }
1361 | STATE stateMatrixRow { memcpy($$, $2, sizeof($$)); }
1362 | STATE stateDepthItem { memcpy($$, $2, sizeof($$)); }
1365 stateMaterialItem: MATERIAL optFaceType stateMatProperty
1367 memset($$, 0, sizeof($$));
1368 $$[0] = STATE_MATERIAL;
1374 stateMatProperty: ambDiffSpecProperty
1380 $$ = STATE_EMISSION;
1384 $$ = STATE_SHININESS;
1388 stateLightItem: LIGHT '[' stateLightNumber ']' stateLightProperty
1390 memset($$, 0, sizeof($$));
1391 $$[0] = STATE_LIGHT;
1397 stateLightProperty: ambDiffSpecProperty
1403 $$ = STATE_POSITION;
1407 if (!state->ctx->Extensions.EXT_point_parameters) {
1408 yyerror(& @1, state, "GL_ARB_point_parameters not supported");
1412 $$ = STATE_ATTENUATION;
1414 | SPOT stateSpotProperty
1420 $$ = STATE_HALF_VECTOR;
1424 stateSpotProperty: DIRECTION
1426 $$ = STATE_SPOT_DIRECTION;
1430 stateLightModelItem: LIGHTMODEL stateLModProperty
1437 stateLModProperty: AMBIENT
1439 memset($$, 0, sizeof($$));
1440 $$[0] = STATE_LIGHTMODEL_AMBIENT;
1442 | optFaceType SCENECOLOR
1444 memset($$, 0, sizeof($$));
1445 $$[0] = STATE_LIGHTMODEL_SCENECOLOR;
1450 stateLightProdItem: LIGHTPROD '[' stateLightNumber ']' optFaceType stateLProdProperty
1452 memset($$, 0, sizeof($$));
1453 $$[0] = STATE_LIGHTPROD;
1460 stateLProdProperty: ambDiffSpecProperty;
1462 stateTexEnvItem: TEXENV optLegacyTexUnitNum stateTexEnvProperty
1464 memset($$, 0, sizeof($$));
1470 stateTexEnvProperty: COLOR
1472 $$ = STATE_TEXENV_COLOR;
1476 ambDiffSpecProperty: AMBIENT
1486 $$ = STATE_SPECULAR;
1490 stateLightNumber: INTEGER
1492 if ((unsigned) $1 >= state->MaxLights) {
1493 yyerror(& @1, state, "invalid light selector");
1501 stateTexGenItem: TEXGEN optTexCoordUnitNum stateTexGenType stateTexGenCoord
1503 memset($$, 0, sizeof($$));
1504 $$[0] = STATE_TEXGEN;
1510 stateTexGenType: EYE
1512 $$ = STATE_TEXGEN_EYE_S;
1516 $$ = STATE_TEXGEN_OBJECT_S;
1519 stateTexGenCoord: TEXGEN_S
1521 $$ = STATE_TEXGEN_EYE_S - STATE_TEXGEN_EYE_S;
1525 $$ = STATE_TEXGEN_EYE_T - STATE_TEXGEN_EYE_S;
1529 $$ = STATE_TEXGEN_EYE_R - STATE_TEXGEN_EYE_S;
1533 $$ = STATE_TEXGEN_EYE_Q - STATE_TEXGEN_EYE_S;
1537 stateFogItem: FOG stateFogProperty
1539 memset($$, 0, sizeof($$));
1544 stateFogProperty: COLOR
1546 $$ = STATE_FOG_COLOR;
1550 $$ = STATE_FOG_PARAMS;
1554 stateClipPlaneItem: CLIP '[' stateClipPlaneNum ']' PLANE
1556 memset($$, 0, sizeof($$));
1557 $$[0] = STATE_CLIPPLANE;
1562 stateClipPlaneNum: INTEGER
1564 if ((unsigned) $1 >= state->MaxClipPlanes) {
1565 yyerror(& @1, state, "invalid clip plane selector");
1573 statePointItem: POINT_TOK statePointProperty
1575 memset($$, 0, sizeof($$));
1580 statePointProperty: SIZE_TOK
1582 $$ = STATE_POINT_SIZE;
1586 $$ = STATE_POINT_ATTENUATION;
1590 stateMatrixRow: stateMatrixItem ROW '[' stateMatrixRowNum ']'
1600 stateMatrixRows: stateMatrixItem optMatrixRows
1615 | ROW '[' stateMatrixRowNum DOT_DOT stateMatrixRowNum ']'
1617 /* It seems logical that the matrix row range specifier would have
1618 * to specify a range or more than one row (i.e., $5 > $3).
1619 * However, the ARB_vertex_program spec says "a program will fail
1620 * to load if <a> is greater than <b>." This means that $3 == $5
1624 yyerror(& @3, state, "invalid matrix row range");
1633 stateMatrixItem: MATRIX stateMatrixName stateOptMatModifier
1641 stateOptMatModifier:
1651 stateMatModifier: INVERSE
1653 $$ = STATE_MATRIX_INVERSE;
1657 $$ = STATE_MATRIX_TRANSPOSE;
1661 $$ = STATE_MATRIX_INVTRANS;
1665 stateMatrixRowNum: INTEGER
1668 yyerror(& @1, state, "invalid matrix row reference");
1676 stateMatrixName: MODELVIEW stateOptModMatNum
1678 $$[0] = STATE_MODELVIEW_MATRIX;
1683 $$[0] = STATE_PROJECTION_MATRIX;
1688 $$[0] = STATE_MVP_MATRIX;
1691 | TEXTURE optTexCoordUnitNum
1693 $$[0] = STATE_TEXTURE_MATRIX;
1696 | PALETTE '[' statePaletteMatNum ']'
1698 yyerror(& @1, state, "GL_ARB_matrix_palette not supported");
1701 | MAT_PROGRAM '[' stateProgramMatNum ']'
1703 $$[0] = STATE_PROGRAM_MATRIX;
1712 | '[' stateModMatNum ']'
1717 stateModMatNum: INTEGER
1719 /* Since GL_ARB_vertex_blend isn't supported, only modelview matrix
1723 yyerror(& @1, state, "invalid modelview matrix index");
1730 statePaletteMatNum: INTEGER
1732 /* Since GL_ARB_matrix_palette isn't supported, just let any value
1733 * through here. The error will be generated later.
1738 stateProgramMatNum: INTEGER
1740 if ((unsigned) $1 >= state->MaxProgramMatrices) {
1741 yyerror(& @1, state, "invalid program matrix selector");
1749 stateDepthItem: DEPTH RANGE
1751 memset($$, 0, sizeof($$));
1752 $$[0] = STATE_DEPTH_RANGE;
1757 programSingleItem: progEnvParam | progLocalParam;
1759 programMultipleItem: progEnvParams | progLocalParams;
1761 progEnvParams: PROGRAM ENV '[' progEnvParamNums ']'
1763 memset($$, 0, sizeof($$));
1764 $$[0] = state->state_param_enum;
1771 progEnvParamNums: progEnvParamNum
1776 | progEnvParamNum DOT_DOT progEnvParamNum
1783 progEnvParam: PROGRAM ENV '[' progEnvParamNum ']'
1785 memset($$, 0, sizeof($$));
1786 $$[0] = state->state_param_enum;
1793 progLocalParams: PROGRAM LOCAL '[' progLocalParamNums ']'
1795 memset($$, 0, sizeof($$));
1796 $$[0] = state->state_param_enum;
1797 $$[1] = STATE_LOCAL;
1802 progLocalParamNums: progLocalParamNum
1807 | progLocalParamNum DOT_DOT progLocalParamNum
1814 progLocalParam: PROGRAM LOCAL '[' progLocalParamNum ']'
1816 memset($$, 0, sizeof($$));
1817 $$[0] = state->state_param_enum;
1818 $$[1] = STATE_LOCAL;
1824 progEnvParamNum: INTEGER
1826 if ((unsigned) $1 >= state->limits->MaxEnvParams) {
1827 yyerror(& @1, state, "invalid environment parameter reference");
1834 progLocalParamNum: INTEGER
1836 if ((unsigned) $1 >= state->limits->MaxLocalParams) {
1837 yyerror(& @1, state, "invalid local parameter reference");
1846 paramConstDecl: paramConstScalarDecl | paramConstVector;
1847 paramConstUse: paramConstScalarUse | paramConstVector;
1849 paramConstScalarDecl: signedFloatConstant
1859 paramConstScalarUse: REAL
1870 $$.data[0] = (float) $1;
1871 $$.data[1] = (float) $1;
1872 $$.data[2] = (float) $1;
1873 $$.data[3] = (float) $1;
1877 paramConstVector: '{' signedFloatConstant '}'
1885 | '{' signedFloatConstant ',' signedFloatConstant '}'
1893 | '{' signedFloatConstant ',' signedFloatConstant ','
1894 signedFloatConstant '}'
1902 | '{' signedFloatConstant ',' signedFloatConstant ','
1903 signedFloatConstant ',' signedFloatConstant '}'
1913 signedFloatConstant: optionalSign REAL
1915 $$ = ($1) ? -$2 : $2;
1917 | optionalSign INTEGER
1919 $$ = (float)(($1) ? -$2 : $2);
1923 optionalSign: '+' { $$ = FALSE; }
1924 | '-' { $$ = TRUE; }
1928 TEMP_statement: optVarSize TEMP { $<integer>$ = $2; } varNameList
1933 /* NV_fragment_program_option defines the size qualifiers in a
1934 * fairly broken way. "SHORT" or "LONG" can optionally be used
1935 * before TEMP or OUTPUT. However, neither is a reserved word!
1936 * This means that we have to parse it as an identifier, then check
1937 * to make sure it's one of the valid values. *sigh*
1939 * In addition, the grammar in the extension spec does *not* allow
1940 * the size specifier to be optional, but all known implementations
1943 if (!state->option.NV_fragment) {
1944 yyerror(& @1, state, "unexpected IDENTIFIER");
1948 if (strcmp("SHORT", $1) == 0) {
1949 } else if (strcmp("LONG", $1) == 0) {
1951 char *const err_str =
1952 make_error_string("invalid storage size specifier \"%s\"",
1955 yyerror(& @1, state, (err_str != NULL)
1956 ? err_str : "invalid storage size specifier");
1958 if (err_str != NULL) {
1959 _mesa_free(err_str);
1970 ADDRESS_statement: ADDRESS { $<integer>$ = $1; } varNameList
1973 varNameList: varNameList ',' IDENTIFIER
1975 if (!declare_variable(state, $3, $<integer>0, & @3)) {
1982 if (!declare_variable(state, $1, $<integer>0, & @1)) {
1989 OUTPUT_statement: optVarSize OUTPUT IDENTIFIER '=' resultBinding
1991 struct asm_symbol *const s =
1992 declare_variable(state, $3, at_output, & @3);
1998 s->output_binding = $5;
2003 resultBinding: RESULT POSITION
2005 if (state->mode == ARB_vertex) {
2006 $$ = VERT_RESULT_HPOS;
2008 yyerror(& @2, state, "invalid program result name");
2014 if (state->mode == ARB_vertex) {
2015 $$ = VERT_RESULT_FOGC;
2017 yyerror(& @2, state, "invalid program result name");
2021 | RESULT resultColBinding
2027 if (state->mode == ARB_vertex) {
2028 $$ = VERT_RESULT_PSIZ;
2030 yyerror(& @2, state, "invalid program result name");
2034 | RESULT TEXCOORD optTexCoordUnitNum
2036 if (state->mode == ARB_vertex) {
2037 $$ = VERT_RESULT_TEX0 + $3;
2039 yyerror(& @2, state, "invalid program result name");
2045 if (state->mode == ARB_fragment) {
2046 $$ = FRAG_RESULT_DEPTH;
2048 yyerror(& @2, state, "invalid program result name");
2054 resultColBinding: COLOR optResultFaceType optResultColorType
2062 $$ = (state->mode == ARB_vertex)
2064 : FRAG_RESULT_COLOR;
2068 if (state->mode == ARB_vertex) {
2069 $$ = VERT_RESULT_COL0;
2071 yyerror(& @1, state, "invalid program result name");
2077 if (state->mode == ARB_vertex) {
2078 $$ = VERT_RESULT_BFC0;
2080 yyerror(& @1, state, "invalid program result name");
2092 if (state->mode == ARB_vertex) {
2095 yyerror(& @1, state, "invalid program result name");
2101 if (state->mode == ARB_vertex) {
2104 yyerror(& @1, state, "invalid program result name");
2110 optFaceType: { $$ = 0; }
2115 optColorType: { $$ = 0; }
2116 | PRIMARY { $$ = 0; }
2117 | SECONDARY { $$ = 1; }
2120 optTexCoordUnitNum: { $$ = 0; }
2121 | '[' texCoordUnitNum ']' { $$ = $2; }
2124 optTexImageUnitNum: { $$ = 0; }
2125 | '[' texImageUnitNum ']' { $$ = $2; }
2128 optLegacyTexUnitNum: { $$ = 0; }
2129 | '[' legacyTexUnitNum ']' { $$ = $2; }
2132 texCoordUnitNum: INTEGER
2134 if ((unsigned) $1 >= state->MaxTextureCoordUnits) {
2135 yyerror(& @1, state, "invalid texture coordinate unit selector");
2143 texImageUnitNum: INTEGER
2145 if ((unsigned) $1 >= state->MaxTextureImageUnits) {
2146 yyerror(& @1, state, "invalid texture image unit selector");
2154 legacyTexUnitNum: INTEGER
2156 if ((unsigned) $1 >= state->MaxTextureUnits) {
2157 yyerror(& @1, state, "invalid texture unit selector");
2165 ALIAS_statement: ALIAS IDENTIFIER '=' USED_IDENTIFIER
2167 struct asm_symbol *exist = (struct asm_symbol *)
2168 _mesa_symbol_table_find_symbol(state->st, 0, $2);
2169 struct asm_symbol *target = (struct asm_symbol *)
2170 _mesa_symbol_table_find_symbol(state->st, 0, $4);
2174 if (exist != NULL) {
2176 _mesa_snprintf(m, sizeof(m), "redeclared identifier: %s", $2);
2178 yyerror(& @2, state, m);
2180 } else if (target == NULL) {
2182 yyerror(& @4, state,
2183 "undefined variable binding in ALIAS statement");
2186 _mesa_symbol_table_add_symbol(state->st, 0, $2, target);
2198 asm_instruction_set_operands(struct asm_instruction *inst,
2199 const struct prog_dst_register *dst,
2200 const struct asm_src_register *src0,
2201 const struct asm_src_register *src1,
2202 const struct asm_src_register *src2)
2204 /* In the core ARB extensions only the KIL instruction doesn't have a
2205 * destination register.
2208 init_dst_reg(& inst->Base.DstReg);
2210 inst->Base.DstReg = *dst;
2213 /* The only instruction that doesn't have any source registers is the
2214 * condition-code based KIL instruction added by NV_fragment_program_option.
2217 inst->Base.SrcReg[0] = src0->Base;
2218 inst->SrcReg[0] = *src0;
2220 init_src_reg(& inst->SrcReg[0]);
2224 inst->Base.SrcReg[1] = src1->Base;
2225 inst->SrcReg[1] = *src1;
2227 init_src_reg(& inst->SrcReg[1]);
2231 inst->Base.SrcReg[2] = src2->Base;
2232 inst->SrcReg[2] = *src2;
2234 init_src_reg(& inst->SrcReg[2]);
2239 struct asm_instruction *
2240 asm_instruction_ctor(gl_inst_opcode op,
2241 const struct prog_dst_register *dst,
2242 const struct asm_src_register *src0,
2243 const struct asm_src_register *src1,
2244 const struct asm_src_register *src2)
2246 struct asm_instruction *inst = CALLOC_STRUCT(asm_instruction);
2249 _mesa_init_instructions(& inst->Base, 1);
2250 inst->Base.Opcode = op;
2252 asm_instruction_set_operands(inst, dst, src0, src1, src2);
2259 struct asm_instruction *
2260 asm_instruction_copy_ctor(const struct prog_instruction *base,
2261 const struct prog_dst_register *dst,
2262 const struct asm_src_register *src0,
2263 const struct asm_src_register *src1,
2264 const struct asm_src_register *src2)
2266 struct asm_instruction *inst = CALLOC_STRUCT(asm_instruction);
2269 _mesa_init_instructions(& inst->Base, 1);
2270 inst->Base.Opcode = base->Opcode;
2271 inst->Base.CondUpdate = base->CondUpdate;
2272 inst->Base.CondDst = base->CondDst;
2273 inst->Base.SaturateMode = base->SaturateMode;
2274 inst->Base.Precision = base->Precision;
2276 asm_instruction_set_operands(inst, dst, src0, src1, src2);
2284 init_dst_reg(struct prog_dst_register *r)
2286 memset(r, 0, sizeof(*r));
2287 r->File = PROGRAM_UNDEFINED;
2288 r->WriteMask = WRITEMASK_XYZW;
2289 r->CondMask = COND_TR;
2290 r->CondSwizzle = SWIZZLE_NOOP;
2294 /** Like init_dst_reg() but set the File and Index fields. */
2296 set_dst_reg(struct prog_dst_register *r, gl_register_file file, GLint index)
2298 const GLint maxIndex = 1 << INST_INDEX_BITS;
2299 const GLint minIndex = 0;
2300 ASSERT(index >= minIndex);
2302 ASSERT(index <= maxIndex);
2304 ASSERT(file == PROGRAM_TEMPORARY ||
2305 file == PROGRAM_ADDRESS ||
2306 file == PROGRAM_OUTPUT);
2307 memset(r, 0, sizeof(*r));
2310 r->WriteMask = WRITEMASK_XYZW;
2311 r->CondMask = COND_TR;
2312 r->CondSwizzle = SWIZZLE_NOOP;
2317 init_src_reg(struct asm_src_register *r)
2319 memset(r, 0, sizeof(*r));
2320 r->Base.File = PROGRAM_UNDEFINED;
2321 r->Base.Swizzle = SWIZZLE_NOOP;
2326 /** Like init_src_reg() but set the File and Index fields.
2327 * \return GL_TRUE if a valid src register, GL_FALSE otherwise
2330 set_src_reg(struct asm_src_register *r, gl_register_file file, GLint index)
2332 set_src_reg_swz(r, file, index, SWIZZLE_XYZW);
2337 set_src_reg_swz(struct asm_src_register *r, gl_register_file file, GLint index,
2340 const GLint maxIndex = (1 << INST_INDEX_BITS) - 1;
2341 const GLint minIndex = -(1 << INST_INDEX_BITS);
2342 ASSERT(file < PROGRAM_FILE_MAX);
2343 ASSERT(index >= minIndex);
2345 ASSERT(index <= maxIndex);
2347 memset(r, 0, sizeof(*r));
2348 r->Base.File = file;
2349 r->Base.Index = index;
2350 r->Base.Swizzle = swizzle;
2356 * Validate the set of inputs used by a program
2358 * Validates that legal sets of inputs are used by the program. In this case
2359 * "used" included both reading the input or binding the input to a name using
2360 * the \c ATTRIB command.
2363 * \c TRUE if the combination of inputs used is valid, \c FALSE otherwise.
2366 validate_inputs(struct YYLTYPE *locp, struct asm_parser_state *state)
2368 const int inputs = state->prog->InputsRead | state->InputsBound;
2370 if (((inputs & 0x0ffff) & (inputs >> 16)) != 0) {
2371 yyerror(locp, state, "illegal use of generic attribute and name attribute");
2380 declare_variable(struct asm_parser_state *state, char *name, enum asm_type t,
2381 struct YYLTYPE *locp)
2383 struct asm_symbol *s = NULL;
2384 struct asm_symbol *exist = (struct asm_symbol *)
2385 _mesa_symbol_table_find_symbol(state->st, 0, name);
2388 if (exist != NULL) {
2389 yyerror(locp, state, "redeclared identifier");
2391 s = calloc(1, sizeof(struct asm_symbol));
2397 if (state->prog->NumTemporaries >= state->limits->MaxTemps) {
2398 yyerror(locp, state, "too many temporaries declared");
2403 s->temp_binding = state->prog->NumTemporaries;
2404 state->prog->NumTemporaries++;
2408 if (state->prog->NumAddressRegs >= state->limits->MaxAddressRegs) {
2409 yyerror(locp, state, "too many address registers declared");
2414 /* FINISHME: Add support for multiple address registers.
2416 state->prog->NumAddressRegs++;
2423 _mesa_symbol_table_add_symbol(state->st, 0, s->name, s);
2424 s->next = state->sym;
2432 int add_state_reference(struct gl_program_parameter_list *param_list,
2433 const gl_state_index tokens[STATE_LENGTH])
2435 const GLuint size = 4; /* XXX fix */
2439 name = _mesa_program_state_string(tokens);
2440 index = _mesa_add_parameter(param_list, PROGRAM_STATE_VAR, name,
2441 size, GL_NONE, NULL, tokens, 0x0);
2442 param_list->StateFlags |= _mesa_program_state_flags(tokens);
2444 /* free name string here since we duplicated it in add_parameter() */
2452 initialize_symbol_from_state(struct gl_program *prog,
2453 struct asm_symbol *param_var,
2454 const gl_state_index tokens[STATE_LENGTH])
2457 gl_state_index state_tokens[STATE_LENGTH];
2460 memcpy(state_tokens, tokens, sizeof(state_tokens));
2462 param_var->type = at_param;
2463 param_var->param_binding_type = PROGRAM_STATE_VAR;
2465 /* If we are adding a STATE_MATRIX that has multiple rows, we need to
2466 * unroll it and call add_state_reference() for each row
2468 if ((state_tokens[0] == STATE_MODELVIEW_MATRIX ||
2469 state_tokens[0] == STATE_PROJECTION_MATRIX ||
2470 state_tokens[0] == STATE_MVP_MATRIX ||
2471 state_tokens[0] == STATE_TEXTURE_MATRIX ||
2472 state_tokens[0] == STATE_PROGRAM_MATRIX)
2473 && (state_tokens[2] != state_tokens[3])) {
2475 const int first_row = state_tokens[2];
2476 const int last_row = state_tokens[3];
2478 for (row = first_row; row <= last_row; row++) {
2479 state_tokens[2] = state_tokens[3] = row;
2481 idx = add_state_reference(prog->Parameters, state_tokens);
2482 if (param_var->param_binding_begin == ~0U) {
2483 param_var->param_binding_begin = idx;
2484 param_var->param_binding_swizzle = SWIZZLE_XYZW;
2487 param_var->param_binding_length++;
2491 idx = add_state_reference(prog->Parameters, state_tokens);
2492 if (param_var->param_binding_begin == ~0U) {
2493 param_var->param_binding_begin = idx;
2494 param_var->param_binding_swizzle = SWIZZLE_XYZW;
2496 param_var->param_binding_length++;
2504 initialize_symbol_from_param(struct gl_program *prog,
2505 struct asm_symbol *param_var,
2506 const gl_state_index tokens[STATE_LENGTH])
2509 gl_state_index state_tokens[STATE_LENGTH];
2512 memcpy(state_tokens, tokens, sizeof(state_tokens));
2514 assert((state_tokens[0] == STATE_VERTEX_PROGRAM)
2515 || (state_tokens[0] == STATE_FRAGMENT_PROGRAM));
2516 assert((state_tokens[1] == STATE_ENV)
2517 || (state_tokens[1] == STATE_LOCAL));
2520 * The param type is STATE_VAR. The program parameter entry will
2521 * effectively be a pointer into the LOCAL or ENV parameter array.
2523 param_var->type = at_param;
2524 param_var->param_binding_type = PROGRAM_STATE_VAR;
2526 /* If we are adding a STATE_ENV or STATE_LOCAL that has multiple elements,
2527 * we need to unroll it and call add_state_reference() for each row
2529 if (state_tokens[2] != state_tokens[3]) {
2531 const int first_row = state_tokens[2];
2532 const int last_row = state_tokens[3];
2534 for (row = first_row; row <= last_row; row++) {
2535 state_tokens[2] = state_tokens[3] = row;
2537 idx = add_state_reference(prog->Parameters, state_tokens);
2538 if (param_var->param_binding_begin == ~0U) {
2539 param_var->param_binding_begin = idx;
2540 param_var->param_binding_swizzle = SWIZZLE_XYZW;
2542 param_var->param_binding_length++;
2546 idx = add_state_reference(prog->Parameters, state_tokens);
2547 if (param_var->param_binding_begin == ~0U) {
2548 param_var->param_binding_begin = idx;
2549 param_var->param_binding_swizzle = SWIZZLE_XYZW;
2551 param_var->param_binding_length++;
2559 * Put a float/vector constant/literal into the parameter list.
2560 * \param param_var returns info about the parameter/constant's location,
2561 * binding, type, etc.
2562 * \param vec the vector/constant to add
2563 * \param allowSwizzle if true, try to consolidate constants which only differ
2564 * by a swizzle. We don't want to do this when building
2565 * arrays of constants that may be indexed indirectly.
2566 * \return index of the constant in the parameter list.
2569 initialize_symbol_from_const(struct gl_program *prog,
2570 struct asm_symbol *param_var,
2571 const struct asm_vector *vec,
2572 GLboolean allowSwizzle)
2575 const int idx = _mesa_add_unnamed_constant(prog->Parameters,
2576 vec->data, vec->count,
2577 allowSwizzle ? &swizzle : NULL);
2579 param_var->type = at_param;
2580 param_var->param_binding_type = PROGRAM_CONSTANT;
2582 if (param_var->param_binding_begin == ~0U) {
2583 param_var->param_binding_begin = idx;
2584 param_var->param_binding_swizzle = allowSwizzle ? swizzle : SWIZZLE_XYZW;
2586 param_var->param_binding_length++;
2593 make_error_string(const char *fmt, ...)
2599 va_start(args, fmt);
2601 /* Call vsnprintf once to determine how large the final string is. Call it
2602 * again to do the actual formatting. from the vsnprintf manual page:
2604 * Upon successful return, these functions return the number of
2605 * characters printed (not including the trailing '\0' used to end
2606 * output to strings).
2608 length = 1 + vsnprintf(NULL, 0, fmt, args);
2610 str = _mesa_malloc(length);
2612 vsnprintf(str, length, fmt, args);
2622 yyerror(YYLTYPE *locp, struct asm_parser_state *state, const char *s)
2627 err_str = make_error_string("glProgramStringARB(%s)\n", s);
2629 _mesa_error(state->ctx, GL_INVALID_OPERATION, err_str);
2630 _mesa_free(err_str);
2633 err_str = make_error_string("line %u, char %u: error: %s\n",
2634 locp->first_line, locp->first_column, s);
2635 _mesa_set_program_error(state->ctx, locp->position, err_str);
2638 _mesa_free(err_str);
2644 _mesa_parse_arb_program(GLcontext *ctx, GLenum target, const GLubyte *str,
2645 GLsizei len, struct asm_parser_state *state)
2647 struct asm_instruction *inst;
2650 GLboolean result = GL_FALSE;
2652 struct asm_symbol *sym;
2655 state->prog->Target = target;
2656 state->prog->Parameters = _mesa_new_parameter_list();
2658 /* Make a copy of the program string and force it to be NUL-terminated.
2660 strz = (GLubyte *) _mesa_malloc(len + 1);
2662 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glProgramStringARB");
2665 _mesa_memcpy (strz, str, len);
2668 state->prog->String = strz;
2670 state->st = _mesa_symbol_table_ctor();
2672 state->limits = (target == GL_VERTEX_PROGRAM_ARB)
2673 ? & ctx->Const.VertexProgram
2674 : & ctx->Const.FragmentProgram;
2676 state->MaxTextureImageUnits = ctx->Const.MaxTextureImageUnits;
2677 state->MaxTextureCoordUnits = ctx->Const.MaxTextureCoordUnits;
2678 state->MaxTextureUnits = ctx->Const.MaxTextureUnits;
2679 state->MaxClipPlanes = ctx->Const.MaxClipPlanes;
2680 state->MaxLights = ctx->Const.MaxLights;
2681 state->MaxProgramMatrices = ctx->Const.MaxProgramMatrices;
2683 state->state_param_enum = (target == GL_VERTEX_PROGRAM_ARB)
2684 ? STATE_VERTEX_PROGRAM : STATE_FRAGMENT_PROGRAM;
2686 _mesa_set_program_error(ctx, -1, NULL);
2688 _mesa_program_lexer_ctor(& state->scanner, state, (const char *) str, len);
2690 _mesa_program_lexer_dtor(state->scanner);
2693 if (ctx->Program.ErrorPos != -1) {
2697 if (! _mesa_layout_parameters(state)) {
2701 loc.first_column = 0;
2704 yyerror(& loc, state, "invalid PARAM usage");
2710 /* Add one instruction to store the "END" instruction.
2712 state->prog->Instructions =
2713 _mesa_alloc_instructions(state->prog->NumInstructions + 1);
2714 inst = state->inst_head;
2715 for (i = 0; i < state->prog->NumInstructions; i++) {
2716 struct asm_instruction *const temp = inst->next;
2718 state->prog->Instructions[i] = inst->Base;
2722 /* Finally, tag on an OPCODE_END instruction */
2724 const GLuint numInst = state->prog->NumInstructions;
2725 _mesa_init_instructions(state->prog->Instructions + numInst, 1);
2726 state->prog->Instructions[numInst].Opcode = OPCODE_END;
2728 state->prog->NumInstructions++;
2730 state->prog->NumParameters = state->prog->Parameters->NumParameters;
2731 state->prog->NumAttributes = _mesa_bitcount(state->prog->InputsRead);
2734 * Initialize native counts to logical counts. The device driver may
2735 * change them if program is translated into a hardware program.
2737 state->prog->NumNativeInstructions = state->prog->NumInstructions;
2738 state->prog->NumNativeTemporaries = state->prog->NumTemporaries;
2739 state->prog->NumNativeParameters = state->prog->NumParameters;
2740 state->prog->NumNativeAttributes = state->prog->NumAttributes;
2741 state->prog->NumNativeAddressRegs = state->prog->NumAddressRegs;
2746 for (inst = state->inst_head; inst != NULL; inst = temp) {
2751 state->inst_head = NULL;
2752 state->inst_tail = NULL;
2754 for (sym = state->sym; sym != NULL; sym = temp) {
2757 _mesa_free((void *) sym->name);
2762 _mesa_symbol_table_dtor(state->st);