2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 #define DEBUG_PARSING 0
28 * \file arbprogparse.c
29 * ARB_*_program parser core
40 #include "nvvertprog.h"
41 #include "nvfragprog.h"
42 #include "arbprogparse.h"
43 #include "grammar_mesa.h"
46 #if !defined(__GNUC__) || (__GNUC__ < 2) || \
47 ((__GNUC__ == 2) && (__GNUC_MINOR__ <= 7))
48 # define __extension__
53 * Fragment Program Stuff:
54 * -----------------------------------------------------
56 * - things from Michal's email
58 * + not-overflowing floats (don't use parse_integer..)
59 * + can remove range checking in arbparse.c
61 * - check all limits of number of various variables
66 * Vertex Program Stuff:
67 * -----------------------------------------------------
68 * - Optimize param array usage and count limits correctly, see spec,
70 * + Record if an array is reference absolutly or relatively (or both)
71 * + For absolute arrays, store a bitmap of accesses
72 * + For single parameters, store an access flag
73 * + After parsing, make a parameter cleanup and merging pass, where
74 * relative arrays are layed out first, followed by abs arrays, and
75 * finally single state.
76 * + Remap offsets for param src and dst registers
77 * + Now we can properly count parameter usage
79 * - Multiple state binding errors in param arrays (see spec, just before
84 * -----------------------------------------------------
85 * - User clipping planes vs. PositionInvariant
86 * - Is it sufficient to just multiply by the mvp to transform in the
87 * PositionInvariant case? Or do we need something more involved?
89 * - vp_src swizzle is GLubyte, fp_src swizzle is GLuint
90 * - fetch state listed in program_parameters list
91 * + WTF should this go???
92 * + currently in nvvertexec.c and s_nvfragprog.c
94 * - allow for multiple address registers (and fetch address regs properly)
97 * -----------------------------------------------------
98 * - remove any leftover unused grammer.c stuff (dict_ ?)
99 * - fix grammer.c error handling so its not static
100 * - #ifdef around stuff pertaining to extentions
102 * Outstanding Questions:
103 * -----------------------------------------------------
104 * - ARB_matrix_palette / ARB_vertex_blend -- not supported
105 * what gets hacked off because of this:
106 * + VERTEX_ATTRIB_MATRIXINDEX
107 * + VERTEX_ATTRIB_WEIGHT
111 * - When can we fetch env/local params from their own register files, and
112 * when to we have to fetch them into the main state register file?
116 * -----------------------------------------------------
119 /* Changes since moving the file to shader directory
121 2004-III-4 ------------------------------------------------------------
122 - added #include "grammar_mesa.h"
123 - removed grammar specific code part (it resides now in grammar.c)
124 - added GL_ARB_fragment_program_shadow tokens
125 - modified #include "arbparse_syn.h"
126 - major changes inside _mesa_parse_arb_program()
127 - check the program string for '\0' characters
128 - copy the program string to a one-byte-longer location to have
130 - position invariance test (not writing to result.position) moved
134 typedef GLubyte
*production
;
137 * This is the text describing the rules to parse the grammar
139 __extension__
static char arb_grammar_text
[] =
140 #include "arbprogram_syn.h"
144 * These should match up with the values defined in arbprogram.syn
149 - changed and merged V_* and F_* opcode values to OP_*.
150 - added GL_ARB_fragment_program_shadow specific tokens (michal)
152 #define REVISION 0x09
155 #define FRAGMENT_PROGRAM 0x01
156 #define VERTEX_PROGRAM 0x02
158 /* program section */
160 #define INSTRUCTION 0x02
161 #define DECLARATION 0x03
164 /* GL_ARB_fragment_program option */
165 #define ARB_PRECISION_HINT_FASTEST 0x00
166 #define ARB_PRECISION_HINT_NICEST 0x01
167 #define ARB_FOG_EXP 0x02
168 #define ARB_FOG_EXP2 0x03
169 #define ARB_FOG_LINEAR 0x04
171 /* GL_ARB_vertex_program option */
172 #define ARB_POSITION_INVARIANT 0x05
174 /* GL_ARB_fragment_program_shadow option */
175 #define ARB_FRAGMENT_PROGRAM_SHADOW 0x06
177 /* GL_ARB_draw_buffers option */
178 #define ARB_DRAW_BUFFERS 0x07
180 /* GL_ARB_fragment_program instruction class */
181 #define OP_ALU_INST 0x00
182 #define OP_TEX_INST 0x01
184 /* GL_ARB_vertex_program instruction class */
187 /* GL_ARB_fragment_program instruction type */
188 #define OP_ALU_VECTOR 0x00
189 #define OP_ALU_SCALAR 0x01
190 #define OP_ALU_BINSC 0x02
191 #define OP_ALU_BIN 0x03
192 #define OP_ALU_TRI 0x04
193 #define OP_ALU_SWZ 0x05
194 #define OP_TEX_SAMPLE 0x06
195 #define OP_TEX_KIL 0x07
197 /* GL_ARB_vertex_program instruction type */
198 #define OP_ALU_ARL 0x08
206 /* GL_ARB_fragment_program instruction code */
208 #define OP_ABS_SAT 0x1B
210 #define OP_FLR_SAT 0x26
212 #define OP_FRC_SAT 0x27
214 #define OP_LIT_SAT 0x2A
216 #define OP_MOV_SAT 0x30
218 #define OP_COS_SAT 0x20
220 #define OP_EX2_SAT 0x25
222 #define OP_LG2_SAT 0x29
224 #define OP_RCP_SAT 0x33
226 #define OP_RSQ_SAT 0x34
228 #define OP_SIN_SAT 0x39
230 #define OP_SCS_SAT 0x36
232 #define OP_POW_SAT 0x32
234 #define OP_ADD_SAT 0x1C
236 #define OP_DP3_SAT 0x21
238 #define OP_DP4_SAT 0x22
240 #define OP_DPH_SAT 0x23
242 #define OP_DST_SAT 0x24
244 #define OP_MAX_SAT 0x2E
246 #define OP_MIN_SAT 0x2F
248 #define OP_MUL_SAT 0x31
250 #define OP_SGE_SAT 0x37
252 #define OP_SLT_SAT 0x3A
254 #define OP_SUB_SAT 0x3B
256 #define OP_XPD_SAT 0x43
258 #define OP_CMP_SAT 0x1E
260 #define OP_LRP_SAT 0x2C
262 #define OP_MAD_SAT 0x2D
264 #define OP_SWZ_SAT 0x3C
266 #define OP_TEX_SAT 0x3E
268 #define OP_TXB_SAT 0x40
270 #define OP_TXP_SAT 0x42
273 /* GL_ARB_vertex_program instruction code */
302 /* fragment attribute binding */
303 #define FRAGMENT_ATTRIB_COLOR 0x01
304 #define FRAGMENT_ATTRIB_TEXCOORD 0x02
305 #define FRAGMENT_ATTRIB_FOGCOORD 0x03
306 #define FRAGMENT_ATTRIB_POSITION 0x04
308 /* vertex attribute binding */
309 #define VERTEX_ATTRIB_POSITION 0x01
310 #define VERTEX_ATTRIB_WEIGHT 0x02
311 #define VERTEX_ATTRIB_NORMAL 0x03
312 #define VERTEX_ATTRIB_COLOR 0x04
313 #define VERTEX_ATTRIB_FOGCOORD 0x05
314 #define VERTEX_ATTRIB_TEXCOORD 0x06
315 #define VERTEX_ATTRIB_MATRIXINDEX 0x07
316 #define VERTEX_ATTRIB_GENERIC 0x08
318 /* fragment result binding */
319 #define FRAGMENT_RESULT_COLOR 0x01
320 #define FRAGMENT_RESULT_DEPTH 0x02
322 /* vertex result binding */
323 #define VERTEX_RESULT_POSITION 0x01
324 #define VERTEX_RESULT_COLOR 0x02
325 #define VERTEX_RESULT_FOGCOORD 0x03
326 #define VERTEX_RESULT_POINTSIZE 0x04
327 #define VERTEX_RESULT_TEXCOORD 0x05
330 #define TEXTARGET_1D 0x01
331 #define TEXTARGET_2D 0x02
332 #define TEXTARGET_3D 0x03
333 #define TEXTARGET_RECT 0x04
334 #define TEXTARGET_CUBE 0x05
335 /* GL_ARB_fragment_program_shadow */
336 #define TEXTARGET_SHADOW1D 0x06
337 #define TEXTARGET_SHADOW2D 0x07
338 #define TEXTARGET_SHADOWRECT 0x08
341 #define FACE_FRONT 0x00
342 #define FACE_BACK 0x01
345 #define COLOR_PRIMARY 0x00
346 #define COLOR_SECONDARY 0x01
349 #define COMPONENT_X 0x00
350 #define COMPONENT_Y 0x01
351 #define COMPONENT_Z 0x02
352 #define COMPONENT_W 0x03
353 #define COMPONENT_0 0x04
354 #define COMPONENT_1 0x05
356 /* array index type */
357 #define ARRAY_INDEX_ABSOLUTE 0x00
358 #define ARRAY_INDEX_RELATIVE 0x01
361 #define MATRIX_MODELVIEW 0x01
362 #define MATRIX_PROJECTION 0x02
363 #define MATRIX_MVP 0x03
364 #define MATRIX_TEXTURE 0x04
365 #define MATRIX_PALETTE 0x05
366 #define MATRIX_PROGRAM 0x06
368 /* matrix modifier */
369 #define MATRIX_MODIFIER_IDENTITY 0x00
370 #define MATRIX_MODIFIER_INVERSE 0x01
371 #define MATRIX_MODIFIER_TRANSPOSE 0x02
372 #define MATRIX_MODIFIER_INVTRANS 0x03
375 #define CONSTANT_SCALAR 0x01
376 #define CONSTANT_VECTOR 0x02
378 /* program param type */
379 #define PROGRAM_PARAM_ENV 0x01
380 #define PROGRAM_PARAM_LOCAL 0x02
383 #define REGISTER_ATTRIB 0x01
384 #define REGISTER_PARAM 0x02
385 #define REGISTER_RESULT 0x03
386 #define REGISTER_ESTABLISHED_NAME 0x04
389 #define PARAM_NULL 0x00
390 #define PARAM_ARRAY_ELEMENT 0x01
391 #define PARAM_STATE_ELEMENT 0x02
392 #define PARAM_PROGRAM_ELEMENT 0x03
393 #define PARAM_PROGRAM_ELEMENTS 0x04
394 #define PARAM_CONSTANT 0x05
396 /* param state property */
397 #define STATE_MATERIAL_PARSER 0x01
398 #define STATE_LIGHT_PARSER 0x02
399 #define STATE_LIGHT_MODEL 0x03
400 #define STATE_LIGHT_PROD 0x04
401 #define STATE_FOG 0x05
402 #define STATE_MATRIX_ROWS 0x06
403 /* GL_ARB_fragment_program */
404 #define STATE_TEX_ENV 0x07
405 #define STATE_DEPTH 0x08
406 /* GL_ARB_vertex_program */
407 #define STATE_TEX_GEN 0x09
408 #define STATE_CLIP_PLANE 0x0A
409 #define STATE_POINT 0x0B
411 /* state material property */
412 #define MATERIAL_AMBIENT 0x01
413 #define MATERIAL_DIFFUSE 0x02
414 #define MATERIAL_SPECULAR 0x03
415 #define MATERIAL_EMISSION 0x04
416 #define MATERIAL_SHININESS 0x05
418 /* state light property */
419 #define LIGHT_AMBIENT 0x01
420 #define LIGHT_DIFFUSE 0x02
421 #define LIGHT_SPECULAR 0x03
422 #define LIGHT_POSITION 0x04
423 #define LIGHT_ATTENUATION 0x05
424 #define LIGHT_HALF 0x06
425 #define LIGHT_SPOT_DIRECTION 0x07
427 /* state light model property */
428 #define LIGHT_MODEL_AMBIENT 0x01
429 #define LIGHT_MODEL_SCENECOLOR 0x02
431 /* state light product property */
432 #define LIGHT_PROD_AMBIENT 0x01
433 #define LIGHT_PROD_DIFFUSE 0x02
434 #define LIGHT_PROD_SPECULAR 0x03
436 /* state texture environment property */
437 #define TEX_ENV_COLOR 0x01
439 /* state texture generation coord property */
440 #define TEX_GEN_EYE 0x01
441 #define TEX_GEN_OBJECT 0x02
443 /* state fog property */
444 #define FOG_COLOR 0x01
445 #define FOG_PARAMS 0x02
447 /* state depth property */
448 #define DEPTH_RANGE 0x01
450 /* state point parameters property */
451 #define POINT_SIZE 0x01
452 #define POINT_ATTENUATION 0x02
460 /* GL_ARB_vertex_program */
463 /*-----------------------------------------------------------------------
464 * From here on down is the semantic checking portion
469 * Variable Table Handling functions
484 * Setting an explicit field for each of the binding properties is a bit wasteful
485 * of space, but it should be much more clear when reading later on..
491 GLuint address_binding
; /* The index of the address register we should
493 GLuint attrib_binding
; /* For type vt_attrib, see nvfragprog.h for values */
494 GLuint attrib_binding_idx
; /* The index into the attrib register file corresponding
495 * to the state in attrib_binding */
496 GLuint attrib_is_generic
; /* If the attrib was specified through a generic
498 GLuint temp_binding
; /* The index of the temp register we are to use */
499 GLuint output_binding
; /* For type vt_output, see nvfragprog.h for values */
500 GLuint output_binding_idx
; /* This is the index into the result register file
501 * corresponding to the bound result state */
502 struct var_cache
*alias_binding
; /* For type vt_alias, points to the var_cache entry
503 * that this is aliased to */
504 GLuint param_binding_type
; /* {PROGRAM_STATE_VAR, PROGRAM_LOCAL_PARAM,
505 * PROGRAM_ENV_PARAM} */
506 GLuint param_binding_begin
; /* This is the offset into the program_parameter_list where
507 * the tokens representing our bound state (or constants)
509 GLuint param_binding_length
; /* This is how many entries in the the program_parameter_list
510 * we take up with our state tokens or constants. Note that
511 * this is _not_ the same as the number of param registers
512 * we eventually use */
513 struct var_cache
*next
;
517 var_cache_create (struct var_cache
**va
)
519 *va
= (struct var_cache
*) _mesa_malloc (sizeof (struct var_cache
));
522 (**va
).type
= vt_none
;
523 (**va
).attrib_binding
= ~0;
524 (**va
).attrib_is_generic
= 0;
525 (**va
).temp_binding
= ~0;
526 (**va
).output_binding
= ~0;
527 (**va
).output_binding_idx
= ~0;
528 (**va
).param_binding_type
= ~0;
529 (**va
).param_binding_begin
= ~0;
530 (**va
).param_binding_length
= ~0;
531 (**va
).alias_binding
= NULL
;
537 var_cache_destroy (struct var_cache
**va
)
540 var_cache_destroy (&(**va
).next
);
547 var_cache_append (struct var_cache
**va
, struct var_cache
*nv
)
550 var_cache_append (&(**va
).next
, nv
);
555 static struct var_cache
*
556 var_cache_find (struct var_cache
*va
, GLubyte
* name
)
558 /*struct var_cache *first = va;*/
561 if (!strcmp ( (const char*) name
, (const char*) va
->name
)) {
562 if (va
->type
== vt_alias
)
563 return va
->alias_binding
;
574 * constructs an integer from 4 GLubytes in LE format
577 parse_position (GLubyte
** inst
)
581 value
= (GLuint
) (*(*inst
)++);
582 value
+= (GLuint
) (*(*inst
)++) * 0x100;
583 value
+= (GLuint
) (*(*inst
)++) * 0x10000;
584 value
+= (GLuint
) (*(*inst
)++) * 0x1000000;
590 * This will, given a string, lookup the string as a variable name in the
591 * var cache. If the name is found, the var cache node corresponding to the
592 * var name is returned. If it is not found, a new entry is allocated
594 * \param I Points into the binary array where the string identifier begins
595 * \param found 1 if the string was found in the var_cache, 0 if it was allocated
596 * \return The location on the var_cache corresponding the the string starting at I
598 static struct var_cache
*
599 parse_string (GLubyte
** inst
, struct var_cache
**vc_head
,
600 struct arb_program
*Program
, GLuint
* found
)
603 struct var_cache
*va
= NULL
;
606 *inst
+= _mesa_strlen ((char *) i
) + 1;
608 va
= var_cache_find (*vc_head
, i
);
616 var_cache_create (&va
);
619 var_cache_append (vc_head
, va
);
625 parse_string_without_adding (GLubyte
** inst
, struct arb_program
*Program
)
630 *inst
+= _mesa_strlen ((char *) i
) + 1;
636 * \return -1 if we parse '-', return 1 otherwise
639 parse_sign (GLubyte
** inst
)
641 /*return *(*inst)++ != '+'; */
647 else if (**inst
== '+') {
656 * parses and returns signed integer
659 parse_integer (GLubyte
** inst
, struct arb_program
*Program
)
664 /* check if *inst points to '+' or '-'
665 * if yes, grab the sign and increment *inst
667 sign
= parse_sign (inst
);
669 /* now check if *inst points to 0
670 * if yes, increment the *inst and return the default value
677 /* parse the integer as you normally would do it */
678 value
= _mesa_atoi (parse_string_without_adding (inst
, Program
));
680 /* now, after terminating 0 there is a position
681 * to parse it - parse_position()
683 Program
->Position
= parse_position (inst
);
689 Accumulate this string of digits, and return them as
690 a large integer represented in floating point (for range).
691 If scale is not NULL, also accumulates a power-of-ten
692 integer scale factor that represents the number of digits
696 parse_float_string(GLubyte
** inst
, struct arb_program
*Program
, GLdouble
*scale
)
698 GLdouble value
= 0.0;
699 GLdouble oscale
= 1.0;
701 if (**inst
== 0) { /* this string of digits is empty-- do nothing */
704 else { /* nonempty string-- parse out the digits */
705 while (**inst
>= '0' && **inst
<= '9') {
706 GLubyte digit
= *((*inst
)++);
707 value
= value
* 10.0 + (GLint
) (digit
- '0');
710 assert(**inst
== 0); /* integer string should end with 0 */
711 (*inst
)++; /* skip over terminating 0 */
712 Program
->Position
= parse_position(inst
); /* skip position (from integer) */
720 Parse an unsigned floating-point number from this stream of tokenized
721 characters. Example floating-point formats supported:
729 parse_float (GLubyte
** inst
, struct arb_program
*Program
)
732 GLdouble whole
, fraction
, fracScale
= 1.0;
734 whole
= parse_float_string(inst
, Program
, 0);
735 fraction
= parse_float_string(inst
, Program
, &fracScale
);
737 /* Parse signed exponent */
738 exponent
= parse_integer(inst
, Program
); /* This is the exponent */
740 /* Assemble parts of floating-point number: */
741 return (GLfloat
) ((whole
+ fraction
/ fracScale
) *
742 _mesa_pow(10.0, (GLfloat
) exponent
));
749 parse_signed_float (GLubyte
** inst
, struct arb_program
*Program
)
751 GLint sign
= parse_sign (inst
);
752 GLfloat value
= parse_float (inst
, Program
);
757 * This picks out a constant value from the parsed array. The constant vector is r
758 * returned in the *values array, which should be of length 4.
760 * \param values - The 4 component vector with the constant value in it
763 parse_constant (GLubyte
** inst
, GLfloat
*values
, struct arb_program
*Program
,
766 GLuint components
, i
;
769 switch (*(*inst
)++) {
770 case CONSTANT_SCALAR
:
771 if (use
== GL_TRUE
) {
774 values
[2] = values
[3] = parse_float (inst
, Program
);
779 values
[2] = values
[3] = parse_signed_float (inst
, Program
);
783 case CONSTANT_VECTOR
:
784 values
[0] = values
[1] = values
[2] = 0;
786 components
= *(*inst
)++;
787 for (i
= 0; i
< components
; i
++) {
788 values
[i
] = parse_signed_float (inst
, Program
);
795 * \param offset The offset from the address register that we should
798 * \return 0 on sucess, 1 on error
801 parse_relative_offset (GLcontext
*ctx
, GLubyte
**inst
, struct arb_program
*Program
,
804 *offset
= parse_integer(inst
, Program
);
809 * \param color 0 if color type is primary, 1 if color type is secondary
810 * \return 0 on sucess, 1 on error
813 parse_color_type (GLcontext
* ctx
, GLubyte
** inst
, struct arb_program
*Program
,
816 (void) ctx
; (void) Program
;
817 *color
= *(*inst
)++ != COLOR_PRIMARY
;
822 * Get an integer corresponding to a generic vertex attribute.
824 * \return 0 on sucess, 1 on error
827 parse_generic_attrib_num(GLcontext
*ctx
, GLubyte
** inst
,
828 struct arb_program
*Program
, GLuint
*attrib
)
830 GLint i
= parse_integer(inst
, Program
);
832 if ((i
< 0) || (i
> MAX_VERTEX_PROGRAM_ATTRIBS
))
834 _mesa_set_program_error (ctx
, Program
->Position
,
835 "Invalid generic vertex attribute index");
836 _mesa_error (ctx
, GL_INVALID_OPERATION
, "Invalid generic vertex attribute index");
841 *attrib
= (GLuint
) i
;
848 * \param color The index of the color buffer to write into
849 * \return 0 on sucess, 1 on error
852 parse_output_color_num (GLcontext
* ctx
, GLubyte
** inst
,
853 struct arb_program
*Program
, GLuint
* color
)
855 GLint i
= parse_integer (inst
, Program
);
857 if ((i
< 0) || (i
>= (int)ctx
->Const
.MaxDrawBuffers
)) {
858 _mesa_set_program_error (ctx
, Program
->Position
,
859 "Invalid draw buffer index");
860 _mesa_error (ctx
, GL_INVALID_OPERATION
, "Invalid draw buffer index");
870 * \param coord The texture unit index
871 * \return 0 on sucess, 1 on error
874 parse_texcoord_num (GLcontext
* ctx
, GLubyte
** inst
,
875 struct arb_program
*Program
, GLuint
* coord
)
877 GLint i
= parse_integer (inst
, Program
);
879 if ((i
< 0) || (i
>= (int)ctx
->Const
.MaxTextureUnits
)) {
880 _mesa_set_program_error (ctx
, Program
->Position
,
881 "Invalid texture unit index");
882 _mesa_error (ctx
, GL_INVALID_OPERATION
, "Invalid texture unit index");
891 * \param coord The weight index
892 * \return 0 on sucess, 1 on error
895 parse_weight_num (GLcontext
* ctx
, GLubyte
** inst
, struct arb_program
*Program
,
898 *coord
= parse_integer (inst
, Program
);
900 if ((*coord
< 0) || (*coord
>= 1)) {
901 _mesa_set_program_error (ctx
, Program
->Position
,
902 "Invalid weight index");
903 _mesa_error (ctx
, GL_INVALID_OPERATION
, "Invalid weight index");
911 * \param coord The clip plane index
912 * \return 0 on sucess, 1 on error
915 parse_clipplane_num (GLcontext
* ctx
, GLubyte
** inst
,
916 struct arb_program
*Program
, GLint
* coord
)
918 *coord
= parse_integer (inst
, Program
);
920 if ((*coord
< 0) || (*coord
>= (GLint
) ctx
->Const
.MaxClipPlanes
)) {
921 _mesa_set_program_error (ctx
, Program
->Position
,
922 "Invalid clip plane index");
923 _mesa_error (ctx
, GL_INVALID_OPERATION
, "Invalid clip plane index");
932 * \return 0 on front face, 1 on back face
935 parse_face_type (GLubyte
** inst
)
937 switch (*(*inst
)++) {
949 * Given a matrix and a modifier token on the binary array, return tokens
950 * that _mesa_fetch_state() [program.c] can understand.
952 * \param matrix - the matrix we are talking about
953 * \param matrix_idx - the index of the matrix we have (for texture & program matricies)
954 * \param matrix_modifier - the matrix modifier (trans, inv, etc)
955 * \return 0 on sucess, 1 on failure
958 parse_matrix (GLcontext
* ctx
, GLubyte
** inst
, struct arb_program
*Program
,
959 GLint
* matrix
, GLint
* matrix_idx
, GLint
* matrix_modifier
)
961 GLubyte mat
= *(*inst
)++;
966 case MATRIX_MODELVIEW
:
967 *matrix
= STATE_MODELVIEW
;
968 *matrix_idx
= parse_integer (inst
, Program
);
969 if (*matrix_idx
> 0) {
970 _mesa_set_program_error (ctx
, Program
->Position
,
971 "ARB_vertex_blend not supported\n");
972 _mesa_error (ctx
, GL_INVALID_OPERATION
,
973 "ARB_vertex_blend not supported\n");
978 case MATRIX_PROJECTION
:
979 *matrix
= STATE_PROJECTION
;
987 *matrix
= STATE_TEXTURE
;
988 *matrix_idx
= parse_integer (inst
, Program
);
989 if (*matrix_idx
>= (GLint
) ctx
->Const
.MaxTextureUnits
) {
990 _mesa_set_program_error (ctx
, Program
->Position
,
991 "Invalid Texture Unit");
992 _mesa_error (ctx
, GL_INVALID_OPERATION
,
993 "Invalid Texture Unit: %d", *matrix_idx
);
998 /* This is not currently supported (ARB_matrix_palette) */
1000 *matrix_idx
= parse_integer (inst
, Program
);
1001 _mesa_set_program_error (ctx
, Program
->Position
,
1002 "ARB_matrix_palette not supported\n");
1003 _mesa_error (ctx
, GL_INVALID_OPERATION
,
1004 "ARB_matrix_palette not supported\n");
1008 case MATRIX_PROGRAM
:
1009 *matrix
= STATE_PROGRAM
;
1010 *matrix_idx
= parse_integer (inst
, Program
);
1011 if (*matrix_idx
>= (GLint
) ctx
->Const
.MaxProgramMatrices
) {
1012 _mesa_set_program_error (ctx
, Program
->Position
,
1013 "Invalid Program Matrix");
1014 _mesa_error (ctx
, GL_INVALID_OPERATION
,
1015 "Invalid Program Matrix: %d", *matrix_idx
);
1021 switch (*(*inst
)++) {
1022 case MATRIX_MODIFIER_IDENTITY
:
1023 *matrix_modifier
= 0;
1025 case MATRIX_MODIFIER_INVERSE
:
1026 *matrix_modifier
= STATE_MATRIX_INVERSE
;
1028 case MATRIX_MODIFIER_TRANSPOSE
:
1029 *matrix_modifier
= STATE_MATRIX_TRANSPOSE
;
1031 case MATRIX_MODIFIER_INVTRANS
:
1032 *matrix_modifier
= STATE_MATRIX_INVTRANS
;
1041 * This parses a state string (rather, the binary version of it) into
1042 * a 6-token sequence as described in _mesa_fetch_state() [program.c]
1044 * \param inst - the start in the binary arry to start working from
1045 * \param state_tokens - the storage for the 6-token state description
1046 * \return - 0 on sucess, 1 on error
1049 parse_state_single_item (GLcontext
* ctx
, GLubyte
** inst
,
1050 struct arb_program
*Program
, GLint
* state_tokens
)
1052 switch (*(*inst
)++) {
1053 case STATE_MATERIAL_PARSER
:
1054 state_tokens
[0] = STATE_MATERIAL
;
1055 state_tokens
[1] = parse_face_type (inst
);
1056 switch (*(*inst
)++) {
1057 case MATERIAL_AMBIENT
:
1058 state_tokens
[2] = STATE_AMBIENT
;
1060 case MATERIAL_DIFFUSE
:
1061 state_tokens
[2] = STATE_DIFFUSE
;
1063 case MATERIAL_SPECULAR
:
1064 state_tokens
[2] = STATE_SPECULAR
;
1066 case MATERIAL_EMISSION
:
1067 state_tokens
[2] = STATE_EMISSION
;
1069 case MATERIAL_SHININESS
:
1070 state_tokens
[2] = STATE_SHININESS
;
1075 case STATE_LIGHT_PARSER
:
1076 state_tokens
[0] = STATE_LIGHT
;
1077 state_tokens
[1] = parse_integer (inst
, Program
);
1079 /* Check the value of state_tokens[1] against the # of lights */
1080 if (state_tokens
[1] >= (GLint
) ctx
->Const
.MaxLights
) {
1081 _mesa_set_program_error (ctx
, Program
->Position
,
1082 "Invalid Light Number");
1083 _mesa_error (ctx
, GL_INVALID_OPERATION
,
1084 "Invalid Light Number: %d", state_tokens
[1]);
1088 switch (*(*inst
)++) {
1090 state_tokens
[2] = STATE_AMBIENT
;
1093 state_tokens
[2] = STATE_DIFFUSE
;
1095 case LIGHT_SPECULAR
:
1096 state_tokens
[2] = STATE_SPECULAR
;
1098 case LIGHT_POSITION
:
1099 state_tokens
[2] = STATE_POSITION
;
1101 case LIGHT_ATTENUATION
:
1102 state_tokens
[2] = STATE_ATTENUATION
;
1105 state_tokens
[2] = STATE_HALF
;
1107 case LIGHT_SPOT_DIRECTION
:
1108 state_tokens
[2] = STATE_SPOT_DIRECTION
;
1113 case STATE_LIGHT_MODEL
:
1114 switch (*(*inst
)++) {
1115 case LIGHT_MODEL_AMBIENT
:
1116 state_tokens
[0] = STATE_LIGHTMODEL_AMBIENT
;
1118 case LIGHT_MODEL_SCENECOLOR
:
1119 state_tokens
[0] = STATE_LIGHTMODEL_SCENECOLOR
;
1120 state_tokens
[1] = parse_face_type (inst
);
1125 case STATE_LIGHT_PROD
:
1126 state_tokens
[0] = STATE_LIGHTPROD
;
1127 state_tokens
[1] = parse_integer (inst
, Program
);
1129 /* Check the value of state_tokens[1] against the # of lights */
1130 if (state_tokens
[1] >= (GLint
) ctx
->Const
.MaxLights
) {
1131 _mesa_set_program_error (ctx
, Program
->Position
,
1132 "Invalid Light Number");
1133 _mesa_error (ctx
, GL_INVALID_OPERATION
,
1134 "Invalid Light Number: %d", state_tokens
[1]);
1138 state_tokens
[2] = parse_face_type (inst
);
1139 switch (*(*inst
)++) {
1140 case LIGHT_PROD_AMBIENT
:
1141 state_tokens
[3] = STATE_AMBIENT
;
1143 case LIGHT_PROD_DIFFUSE
:
1144 state_tokens
[3] = STATE_DIFFUSE
;
1146 case LIGHT_PROD_SPECULAR
:
1147 state_tokens
[3] = STATE_SPECULAR
;
1154 switch (*(*inst
)++) {
1156 state_tokens
[0] = STATE_FOG_COLOR
;
1159 state_tokens
[0] = STATE_FOG_PARAMS
;
1165 state_tokens
[1] = parse_integer (inst
, Program
);
1166 switch (*(*inst
)++) {
1168 state_tokens
[0] = STATE_TEXENV_COLOR
;
1177 state_tokens
[0] = STATE_TEXGEN
;
1178 /*state_tokens[1] = parse_integer (inst, Program);*/ /* Texture Unit */
1180 if (parse_texcoord_num (ctx
, inst
, Program
, &coord
))
1182 state_tokens
[1] = coord
;
1187 /* 0 - s, 1 - t, 2 - r, 3 - q */
1190 if (type
== TEX_GEN_EYE
) {
1193 state_tokens
[2] = STATE_TEXGEN_EYE_S
;
1196 state_tokens
[2] = STATE_TEXGEN_EYE_T
;
1199 state_tokens
[2] = STATE_TEXGEN_EYE_R
;
1202 state_tokens
[2] = STATE_TEXGEN_EYE_Q
;
1209 state_tokens
[2] = STATE_TEXGEN_OBJECT_S
;
1212 state_tokens
[2] = STATE_TEXGEN_OBJECT_T
;
1215 state_tokens
[2] = STATE_TEXGEN_OBJECT_R
;
1218 state_tokens
[2] = STATE_TEXGEN_OBJECT_Q
;
1226 switch (*(*inst
)++) {
1228 state_tokens
[0] = STATE_DEPTH_RANGE
;
1233 case STATE_CLIP_PLANE
:
1234 state_tokens
[0] = STATE_CLIPPLANE
;
1235 state_tokens
[1] = parse_integer (inst
, Program
);
1236 if (parse_clipplane_num (ctx
, inst
, Program
, &state_tokens
[1]))
1241 switch (*(*inst
++)) {
1243 state_tokens
[0] = STATE_POINT_SIZE
;
1246 case POINT_ATTENUATION
:
1247 state_tokens
[0] = STATE_POINT_ATTENUATION
;
1252 /* XXX: I think this is the correct format for a matrix row */
1253 case STATE_MATRIX_ROWS
:
1254 state_tokens
[0] = STATE_MATRIX
;
1256 (ctx
, inst
, Program
, &state_tokens
[1], &state_tokens
[2],
1260 state_tokens
[3] = parse_integer (inst
, Program
); /* The first row to grab */
1262 if ((**inst
) != 0) { /* Either the last row, 0 */
1263 state_tokens
[4] = parse_integer (inst
, Program
);
1264 if (state_tokens
[4] < state_tokens
[3]) {
1265 _mesa_set_program_error (ctx
, Program
->Position
,
1266 "Second matrix index less than the first");
1267 _mesa_error (ctx
, GL_INVALID_OPERATION
,
1268 "Second matrix index (%d) less than the first (%d)",
1269 state_tokens
[4], state_tokens
[3]);
1274 state_tokens
[4] = state_tokens
[3];
1284 * This parses a state string (rather, the binary version of it) into
1285 * a 6-token similar for the state fetching code in program.c
1287 * One might ask, why fetch these parameters into just like you fetch
1288 * state when they are already stored in other places?
1290 * Because of array offsets -> We can stick env/local parameters in the
1291 * middle of a parameter array and then index someplace into the array
1294 * One optimization might be to only do this for the cases where the
1295 * env/local parameters end up inside of an array, and leave the
1296 * single parameters (or arrays of pure env/local pareameters) in their
1297 * respective register files.
1299 * For ENV parameters, the format is:
1300 * state_tokens[0] = STATE_FRAGMENT_PROGRAM / STATE_VERTEX_PROGRAM
1301 * state_tokens[1] = STATE_ENV
1302 * state_tokens[2] = the parameter index
1304 * for LOCAL parameters, the format is:
1305 * state_tokens[0] = STATE_FRAGMENT_PROGRAM / STATE_VERTEX_PROGRAM
1306 * state_tokens[1] = STATE_LOCAL
1307 * state_tokens[2] = the parameter index
1309 * \param inst - the start in the binary arry to start working from
1310 * \param state_tokens - the storage for the 6-token state description
1311 * \return - 0 on sucess, 1 on failure
1314 parse_program_single_item (GLcontext
* ctx
, GLubyte
** inst
,
1315 struct arb_program
*Program
, GLint
* state_tokens
)
1317 if (Program
->Base
.Target
== GL_FRAGMENT_PROGRAM_ARB
)
1318 state_tokens
[0] = STATE_FRAGMENT_PROGRAM
;
1320 state_tokens
[0] = STATE_VERTEX_PROGRAM
;
1323 switch (*(*inst
)++) {
1324 case PROGRAM_PARAM_ENV
:
1325 state_tokens
[1] = STATE_ENV
;
1326 state_tokens
[2] = parse_integer (inst
, Program
);
1328 /* Check state_tokens[2] against the number of ENV parameters available */
1329 if (((Program
->Base
.Target
== GL_FRAGMENT_PROGRAM_ARB
) &&
1330 (state_tokens
[2] >= (GLint
) ctx
->Const
.MaxFragmentProgramEnvParams
))
1332 ((Program
->Base
.Target
== GL_VERTEX_PROGRAM_ARB
) &&
1333 (state_tokens
[2] >= (GLint
) ctx
->Const
.MaxVertexProgramEnvParams
))) {
1334 _mesa_set_program_error (ctx
, Program
->Position
,
1335 "Invalid Program Env Parameter");
1336 _mesa_error (ctx
, GL_INVALID_OPERATION
,
1337 "Invalid Program Env Parameter: %d",
1344 case PROGRAM_PARAM_LOCAL
:
1345 state_tokens
[1] = STATE_LOCAL
;
1346 state_tokens
[2] = parse_integer (inst
, Program
);
1348 /* Check state_tokens[2] against the number of LOCAL parameters available */
1349 if (((Program
->Base
.Target
== GL_FRAGMENT_PROGRAM_ARB
) &&
1350 (state_tokens
[2] >= (GLint
) ctx
->Const
.MaxFragmentProgramLocalParams
))
1352 ((Program
->Base
.Target
== GL_VERTEX_PROGRAM_ARB
) &&
1353 (state_tokens
[2] >= (GLint
) ctx
->Const
.MaxVertexProgramLocalParams
))) {
1354 _mesa_set_program_error (ctx
, Program
->Position
,
1355 "Invalid Program Local Parameter");
1356 _mesa_error (ctx
, GL_INVALID_OPERATION
,
1357 "Invalid Program Local Parameter: %d",
1368 * For ARB_vertex_program, programs are not allowed to use both an explicit
1369 * vertex attribute and a generic vertex attribute corresponding to the same
1370 * state. See section 2.14.3.1 of the GL_ARB_vertex_program spec.
1372 * This will walk our var_cache and make sure that nobody does anything fishy.
1374 * \return 0 on sucess, 1 on error
1377 generic_attrib_check(struct var_cache
*vc_head
)
1380 struct var_cache
*curr
;
1381 GLboolean explicitAttrib
[MAX_VERTEX_PROGRAM_ATTRIBS
],
1382 genericAttrib
[MAX_VERTEX_PROGRAM_ATTRIBS
];
1384 for (a
=0; a
<MAX_VERTEX_PROGRAM_ATTRIBS
; a
++) {
1385 explicitAttrib
[a
] = GL_FALSE
;
1386 genericAttrib
[a
] = GL_FALSE
;
1391 if (curr
->type
== vt_attrib
) {
1392 if (curr
->attrib_is_generic
)
1393 genericAttrib
[ curr
->attrib_binding_idx
] = GL_TRUE
;
1395 explicitAttrib
[ curr
->attrib_binding_idx
] = GL_TRUE
;
1401 for (a
=0; a
<MAX_VERTEX_PROGRAM_ATTRIBS
; a
++) {
1402 if ((explicitAttrib
[a
]) && (genericAttrib
[a
]))
1410 * This will handle the binding side of an ATTRIB var declaration
1412 * \param binding - the fragment input register state, defined in nvfragprog.h
1413 * \param binding_idx - the index in the attrib register file that binding is associated with
1414 * \return returns 0 on sucess, 1 on error
1416 * See nvfragparse.c for attrib register file layout
1419 parse_attrib_binding (GLcontext
* ctx
, GLubyte
** inst
,
1420 struct arb_program
*Program
, GLuint
* binding
,
1421 GLuint
* binding_idx
, GLuint
*is_generic
)
1428 if (Program
->Base
.Target
== GL_FRAGMENT_PROGRAM_ARB
) {
1429 switch (*(*inst
)++) {
1430 case FRAGMENT_ATTRIB_COLOR
:
1431 err
= parse_color_type (ctx
, inst
, Program
, &coord
);
1432 *binding
= FRAG_ATTRIB_COL0
+ coord
;
1433 *binding_idx
= 1 + coord
;
1436 case FRAGMENT_ATTRIB_TEXCOORD
:
1437 err
= parse_texcoord_num (ctx
, inst
, Program
, &texcoord
);
1438 *binding
= FRAG_ATTRIB_TEX0
+ texcoord
;
1439 *binding_idx
= 4 + texcoord
;
1442 case FRAGMENT_ATTRIB_FOGCOORD
:
1443 *binding
= FRAG_ATTRIB_FOGC
;
1447 case FRAGMENT_ATTRIB_POSITION
:
1448 *binding
= FRAG_ATTRIB_WPOS
;
1458 switch (*(*inst
)++) {
1459 case VERTEX_ATTRIB_POSITION
:
1460 *binding
= VERT_ATTRIB_POS
;
1464 case VERTEX_ATTRIB_WEIGHT
:
1468 err
= parse_weight_num (ctx
, inst
, Program
, &weight
);
1469 *binding
= VERT_ATTRIB_WEIGHT
;
1472 _mesa_set_program_error (ctx
, Program
->Position
,
1473 "ARB_vertex_blend not supported\n");
1474 _mesa_error (ctx
, GL_INVALID_OPERATION
,
1475 "ARB_vertex_blend not supported\n");
1479 case VERTEX_ATTRIB_NORMAL
:
1480 *binding
= VERT_ATTRIB_NORMAL
;
1484 case VERTEX_ATTRIB_COLOR
:
1488 err
= parse_color_type (ctx
, inst
, Program
, &color
);
1490 *binding
= VERT_ATTRIB_COLOR1
;
1494 *binding
= VERT_ATTRIB_COLOR0
;
1500 case VERTEX_ATTRIB_FOGCOORD
:
1501 *binding
= VERT_ATTRIB_FOG
;
1505 case VERTEX_ATTRIB_TEXCOORD
:
1509 err
= parse_texcoord_num (ctx
, inst
, Program
, &unit
);
1510 *binding
= VERT_ATTRIB_TEX0
+ unit
;
1511 *binding_idx
= 8 + unit
;
1515 /* It looks like we don't support this at all, atm */
1516 case VERTEX_ATTRIB_MATRIXINDEX
:
1517 parse_integer (inst
, Program
);
1518 _mesa_set_program_error (ctx
, Program
->Position
,
1519 "ARB_palette_matrix not supported");
1520 _mesa_error (ctx
, GL_INVALID_OPERATION
,
1521 "ARB_palette_matrix not supported");
1525 case VERTEX_ATTRIB_GENERIC
:
1529 if (!parse_generic_attrib_num(ctx
, inst
, Program
, &attrib
)) {
1533 *binding
= VERT_ATTRIB_POS
;
1536 *binding
= VERT_ATTRIB_WEIGHT
;
1539 *binding
= VERT_ATTRIB_NORMAL
;
1542 *binding
= VERT_ATTRIB_COLOR0
;
1545 *binding
= VERT_ATTRIB_COLOR1
;
1548 *binding
= VERT_ATTRIB_FOG
;
1555 *binding
= VERT_ATTRIB_TEX0
+ (attrib
-8);
1558 *binding_idx
= attrib
;
1569 /* Can this even happen? */
1571 _mesa_set_program_error (ctx
, Program
->Position
,
1572 "Bad attribute binding");
1573 _mesa_error (ctx
, GL_INVALID_OPERATION
, "Bad attribute binding");
1576 Program
->InputsRead
|= (1 << *binding_idx
);
1582 * This translates between a binary token for an output variable type
1583 * and the mesa token for the same thing.
1586 * XXX: What is the 'name' for vertex program state? -> do we need it?
1587 * I don't think we do;
1589 * See nvfragprog.h for definitions
1591 * \param inst - The parsed tokens
1592 * \param binding - The name of the state we are binding too
1593 * \param binding_idx - The index into the result register file that this is bound too
1595 * See nvfragparse.c for the register file layout for fragment programs
1596 * See nvvertparse.c for the register file layout for vertex programs
1599 parse_result_binding (GLcontext
* ctx
, GLubyte
** inst
, GLuint
* binding
,
1600 GLuint
* binding_idx
, struct arb_program
*Program
)
1602 GLuint b
, out_color
;
1604 switch (*(*inst
)++) {
1605 case FRAGMENT_RESULT_COLOR
:
1606 /* for frag programs, this is FRAGMENT_RESULT_COLOR */
1607 if (Program
->Base
.Target
== GL_FRAGMENT_PROGRAM_ARB
) {
1608 /* This gets result of the color buffer we're supposed to
1611 parse_output_color_num(ctx
, inst
, Program
, &out_color
);
1613 *binding
= FRAG_OUTPUT_COLR
;
1615 /* XXX: We're ignoring the color buffer for now. */
1618 /* for vtx programs, this is VERTEX_RESULT_POSITION */
1624 case FRAGMENT_RESULT_DEPTH
:
1625 /* for frag programs, this is FRAGMENT_RESULT_DEPTH */
1626 if (Program
->Base
.Target
== GL_FRAGMENT_PROGRAM_ARB
) {
1627 *binding
= FRAG_OUTPUT_DEPR
;
1630 /* for vtx programs, this is VERTEX_RESULT_COLOR */
1633 GLuint face_type
= parse_face_type(inst
);
1634 GLint color_type_ret
= parse_color_type(ctx
, inst
, Program
, &color_type
);
1638 if (color_type_ret
) return 1;
1640 /* secondary color */
1651 /* secondary color */
1663 case VERTEX_RESULT_FOGCOORD
:
1667 case VERTEX_RESULT_POINTSIZE
:
1671 case VERTEX_RESULT_TEXCOORD
:
1672 if (parse_texcoord_num (ctx
, inst
, Program
, &b
))
1674 *binding_idx
= 7 + b
;
1678 Program
->OutputsWritten
|= (1 << *binding_idx
);
1684 * This handles the declaration of ATTRIB variables
1687 * parse_vert_attrib_binding(), or something like that
1689 * \return 0 on sucess, 1 on error
1692 parse_attrib (GLcontext
* ctx
, GLubyte
** inst
, struct var_cache
**vc_head
,
1693 struct arb_program
*Program
)
1697 struct var_cache
*attrib_var
;
1699 attrib_var
= parse_string (inst
, vc_head
, Program
, &found
);
1700 Program
->Position
= parse_position (inst
);
1702 error_msg
= (char *)
1703 _mesa_malloc (_mesa_strlen ((char *) attrib_var
->name
) + 40);
1704 _mesa_sprintf (error_msg
, "Duplicate Varible Declaration: %s",
1707 _mesa_set_program_error (ctx
, Program
->Position
, error_msg
);
1708 _mesa_error (ctx
, GL_INVALID_OPERATION
, error_msg
);
1710 _mesa_free (error_msg
);
1714 attrib_var
->type
= vt_attrib
;
1716 /* I think this is ok now - karl */
1718 /*if (Program->type == GL_FRAGMENT_PROGRAM_ARB) */
1720 if (parse_attrib_binding
1721 (ctx
, inst
, Program
, &attrib_var
->attrib_binding
,
1722 &attrib_var
->attrib_binding_idx
, &attrib_var
->attrib_is_generic
))
1724 if (generic_attrib_check(*vc_head
)) {
1725 _mesa_set_program_error (ctx
, Program
->Position
,
1726 "Cannot use both a generic vertex attribute and a specific attribute of the same type");
1727 _mesa_error (ctx
, GL_INVALID_OPERATION
,
1728 "Cannot use both a generic vertex attribute and a specific attribute of the same type");
1734 Program
->Base
.NumAttributes
++;
1739 * \param use -- TRUE if we're called when declaring implicit parameters,
1740 * FALSE if we're declaraing variables. This has to do with
1741 * if we get a signed or unsigned float for scalar constants
1744 parse_param_elements (GLcontext
* ctx
, GLubyte
** inst
,
1745 struct var_cache
*param_var
,
1746 struct arb_program
*Program
, GLboolean use
)
1750 GLint state_tokens
[6];
1751 GLfloat const_values
[4];
1755 switch (*(*inst
)++) {
1756 case PARAM_STATE_ELEMENT
:
1758 if (parse_state_single_item (ctx
, inst
, Program
, state_tokens
))
1761 /* If we adding STATE_MATRIX that has multiple rows, we need to
1762 * unroll it and call _mesa_add_state_reference() for each row
1764 if ((state_tokens
[0] == STATE_MATRIX
)
1765 && (state_tokens
[3] != state_tokens
[4])) {
1767 GLint first_row
= state_tokens
[3];
1768 GLint last_row
= state_tokens
[4];
1770 for (row
= first_row
; row
<= last_row
; row
++) {
1771 state_tokens
[3] = state_tokens
[4] = row
;
1774 _mesa_add_state_reference (Program
->Parameters
,
1776 if (param_var
->param_binding_begin
== ~0U)
1777 param_var
->param_binding_begin
= idx
;
1778 param_var
->param_binding_length
++;
1779 Program
->Base
.NumParameters
++;
1784 _mesa_add_state_reference (Program
->Parameters
, state_tokens
);
1785 if (param_var
->param_binding_begin
== ~0U)
1786 param_var
->param_binding_begin
= idx
;
1787 param_var
->param_binding_length
++;
1788 Program
->Base
.NumParameters
++;
1792 case PARAM_PROGRAM_ELEMENT
:
1794 if (parse_program_single_item (ctx
, inst
, Program
, state_tokens
))
1796 idx
= _mesa_add_state_reference (Program
->Parameters
, state_tokens
);
1797 if (param_var
->param_binding_begin
== ~0U)
1798 param_var
->param_binding_begin
= idx
;
1799 param_var
->param_binding_length
++;
1800 Program
->Base
.NumParameters
++;
1802 /* Check if there is more: 0 -> we're done, else its an integer */
1804 GLuint out_of_range
, new_idx
;
1805 GLuint start_idx
= state_tokens
[2] + 1;
1806 GLuint end_idx
= parse_integer (inst
, Program
);
1809 if (Program
->Base
.Target
== GL_FRAGMENT_PROGRAM_ARB
) {
1810 if (((state_tokens
[1] == STATE_ENV
)
1811 && (end_idx
>= ctx
->Const
.MaxFragmentProgramEnvParams
))
1812 || ((state_tokens
[1] == STATE_LOCAL
)
1814 ctx
->Const
.MaxFragmentProgramLocalParams
)))
1818 if (((state_tokens
[1] == STATE_ENV
)
1819 && (end_idx
>= ctx
->Const
.MaxVertexProgramEnvParams
))
1820 || ((state_tokens
[1] == STATE_LOCAL
)
1822 ctx
->Const
.MaxVertexProgramLocalParams
)))
1826 _mesa_set_program_error (ctx
, Program
->Position
,
1827 "Invalid Program Parameter");
1828 _mesa_error (ctx
, GL_INVALID_OPERATION
,
1829 "Invalid Program Parameter: %d", end_idx
);
1833 for (new_idx
= start_idx
; new_idx
<= end_idx
; new_idx
++) {
1834 state_tokens
[2] = new_idx
;
1836 _mesa_add_state_reference (Program
->Parameters
,
1838 param_var
->param_binding_length
++;
1839 Program
->Base
.NumParameters
++;
1848 case PARAM_CONSTANT
:
1849 parse_constant (inst
, const_values
, Program
, use
);
1851 _mesa_add_named_constant (Program
->Parameters
,
1852 (char *) param_var
->name
, const_values
);
1853 if (param_var
->param_binding_begin
== ~0U)
1854 param_var
->param_binding_begin
= idx
;
1855 param_var
->param_binding_length
++;
1856 Program
->Base
.NumParameters
++;
1860 _mesa_set_program_error (ctx
, Program
->Position
,
1861 "Unexpected token in parse_param_elements()");
1862 _mesa_error (ctx
, GL_INVALID_OPERATION
,
1863 "Unexpected token in parse_param_elements()");
1867 /* Make sure we haven't blown past our parameter limits */
1868 if (((Program
->Base
.Target
== GL_VERTEX_PROGRAM_ARB
) &&
1869 (Program
->Base
.NumParameters
>=
1870 ctx
->Const
.MaxVertexProgramLocalParams
))
1871 || ((Program
->Base
.Target
== GL_FRAGMENT_PROGRAM_ARB
)
1872 && (Program
->Base
.NumParameters
>=
1873 ctx
->Const
.MaxFragmentProgramLocalParams
))) {
1874 _mesa_set_program_error (ctx
, Program
->Position
,
1875 "Too many parameter variables");
1876 _mesa_error (ctx
, GL_INVALID_OPERATION
, "Too many parameter variables");
1884 * This picks out PARAM program parameter bindings.
1886 * XXX: This needs to be stressed & tested
1888 * \return 0 on sucess, 1 on error
1891 parse_param (GLcontext
* ctx
, GLubyte
** inst
, struct var_cache
**vc_head
,
1892 struct arb_program
*Program
)
1895 GLint specified_length
;
1897 struct var_cache
*param_var
;
1900 param_var
= parse_string (inst
, vc_head
, Program
, &found
);
1901 Program
->Position
= parse_position (inst
);
1904 error_msg
= (char *) _mesa_malloc (_mesa_strlen ((char *) param_var
->name
) + 40);
1905 _mesa_sprintf (error_msg
, "Duplicate Varible Declaration: %s",
1908 _mesa_set_program_error (ctx
, Program
->Position
, error_msg
);
1909 _mesa_error (ctx
, GL_INVALID_OPERATION
, error_msg
);
1911 _mesa_free (error_msg
);
1915 specified_length
= parse_integer (inst
, Program
);
1917 if (specified_length
< 0) {
1918 _mesa_set_program_error (ctx
, Program
->Position
,
1919 "Negative parameter array length");
1920 _mesa_error (ctx
, GL_INVALID_OPERATION
,
1921 "Negative parameter array length: %d", specified_length
);
1925 param_var
->type
= vt_param
;
1926 param_var
->param_binding_length
= 0;
1928 /* Right now, everything is shoved into the main state register file.
1930 * In the future, it would be nice to leave things ENV/LOCAL params
1931 * in their respective register files, if possible
1933 param_var
->param_binding_type
= PROGRAM_STATE_VAR
;
1936 * * - add each guy to the parameter list
1937 * * - increment the param_var->param_binding_len
1938 * * - store the param_var->param_binding_begin for the first one
1939 * * - compare the actual len to the specified len at the end
1941 while (**inst
!= PARAM_NULL
) {
1942 if (parse_param_elements (ctx
, inst
, param_var
, Program
, GL_FALSE
))
1946 /* Test array length here! */
1947 if (specified_length
) {
1948 if (specified_length
!= (int)param_var
->param_binding_length
) {
1949 _mesa_set_program_error (ctx
, Program
->Position
,
1950 "Declared parameter array lenght does not match parameter list");
1951 _mesa_error (ctx
, GL_INVALID_OPERATION
,
1952 "Declared parameter array lenght does not match parameter list");
1965 parse_param_use (GLcontext
* ctx
, GLubyte
** inst
, struct var_cache
**vc_head
,
1966 struct arb_program
*Program
, struct var_cache
**new_var
)
1968 struct var_cache
*param_var
;
1970 /* First, insert a dummy entry into the var_cache */
1971 var_cache_create (¶m_var
);
1972 param_var
->name
= (GLubyte
*) _mesa_strdup (" ");
1973 param_var
->type
= vt_param
;
1975 param_var
->param_binding_length
= 0;
1976 /* Don't fill in binding_begin; We use the default value of -1
1977 * to tell if its already initialized, elsewhere.
1979 * param_var->param_binding_begin = 0;
1981 param_var
->param_binding_type
= PROGRAM_STATE_VAR
;
1983 var_cache_append (vc_head
, param_var
);
1985 /* Then fill it with juicy parameter goodness */
1986 if (parse_param_elements (ctx
, inst
, param_var
, Program
, GL_TRUE
))
1989 *new_var
= param_var
;
1996 * This handles the declaration of TEMP variables
1998 * \return 0 on sucess, 1 on error
2001 parse_temp (GLcontext
* ctx
, GLubyte
** inst
, struct var_cache
**vc_head
,
2002 struct arb_program
*Program
)
2005 struct var_cache
*temp_var
;
2008 while (**inst
!= 0) {
2009 temp_var
= parse_string (inst
, vc_head
, Program
, &found
);
2010 Program
->Position
= parse_position (inst
);
2012 error_msg
= (char *)
2013 _mesa_malloc (_mesa_strlen ((char *) temp_var
->name
) + 40);
2014 _mesa_sprintf (error_msg
, "Duplicate Varible Declaration: %s",
2017 _mesa_set_program_error (ctx
, Program
->Position
, error_msg
);
2018 _mesa_error (ctx
, GL_INVALID_OPERATION
, error_msg
);
2020 _mesa_free (error_msg
);
2024 temp_var
->type
= vt_temp
;
2026 if (((Program
->Base
.Target
== GL_FRAGMENT_PROGRAM_ARB
) &&
2027 (Program
->Base
.NumTemporaries
>=
2028 ctx
->Const
.MaxFragmentProgramTemps
))
2029 || ((Program
->Base
.Target
== GL_VERTEX_PROGRAM_ARB
)
2030 && (Program
->Base
.NumTemporaries
>=
2031 ctx
->Const
.MaxVertexProgramTemps
))) {
2032 _mesa_set_program_error (ctx
, Program
->Position
,
2033 "Too many TEMP variables declared");
2034 _mesa_error (ctx
, GL_INVALID_OPERATION
,
2035 "Too many TEMP variables declared");
2039 temp_var
->temp_binding
= Program
->Base
.NumTemporaries
;
2040 Program
->Base
.NumTemporaries
++;
2048 * This handles variables of the OUTPUT variety
2050 * \return 0 on sucess, 1 on error
2053 parse_output (GLcontext
* ctx
, GLubyte
** inst
, struct var_cache
**vc_head
,
2054 struct arb_program
*Program
)
2057 struct var_cache
*output_var
;
2059 output_var
= parse_string (inst
, vc_head
, Program
, &found
);
2060 Program
->Position
= parse_position (inst
);
2063 error_msg
= (char *)
2064 _mesa_malloc (_mesa_strlen ((char *) output_var
->name
) + 40);
2065 _mesa_sprintf (error_msg
, "Duplicate Varible Declaration: %s",
2068 _mesa_set_program_error (ctx
, Program
->Position
, error_msg
);
2069 _mesa_error (ctx
, GL_INVALID_OPERATION
, error_msg
);
2071 _mesa_free (error_msg
);
2075 output_var
->type
= vt_output
;
2076 return parse_result_binding (ctx
, inst
, &output_var
->output_binding
,
2077 &output_var
->output_binding_idx
, Program
);
2081 * This handles variables of the ALIAS kind
2083 * \return 0 on sucess, 1 on error
2086 parse_alias (GLcontext
* ctx
, GLubyte
** inst
, struct var_cache
**vc_head
,
2087 struct arb_program
*Program
)
2090 struct var_cache
*temp_var
;
2094 temp_var
= parse_string (inst
, vc_head
, Program
, &found
);
2095 Program
->Position
= parse_position (inst
);
2098 error_msg
= (char *)
2099 _mesa_malloc (_mesa_strlen ((char *) temp_var
->name
) + 40);
2100 _mesa_sprintf (error_msg
, "Duplicate Varible Declaration: %s",
2103 _mesa_set_program_error (ctx
, Program
->Position
, error_msg
);
2104 _mesa_error (ctx
, GL_INVALID_OPERATION
, error_msg
);
2106 _mesa_free (error_msg
);
2110 temp_var
->type
= vt_alias
;
2111 temp_var
->alias_binding
= parse_string (inst
, vc_head
, Program
, &found
);
2112 Program
->Position
= parse_position (inst
);
2116 error_msg
= (char *)
2117 _mesa_malloc (_mesa_strlen ((char *) temp_var
->name
) + 40);
2118 _mesa_sprintf (error_msg
, "Alias value %s is not defined",
2119 temp_var
->alias_binding
->name
);
2121 _mesa_set_program_error (ctx
, Program
->Position
, error_msg
);
2122 _mesa_error (ctx
, GL_INVALID_OPERATION
, error_msg
);
2124 _mesa_free (error_msg
);
2132 * This handles variables of the ADDRESS kind
2134 * \return 0 on sucess, 1 on error
2137 parse_address (GLcontext
* ctx
, GLubyte
** inst
, struct var_cache
**vc_head
,
2138 struct arb_program
*Program
)
2141 struct var_cache
*temp_var
;
2144 while (**inst
!= 0) {
2145 temp_var
= parse_string (inst
, vc_head
, Program
, &found
);
2146 Program
->Position
= parse_position (inst
);
2148 error_msg
= (char *)
2149 _mesa_malloc (_mesa_strlen ((char *) temp_var
->name
) + 40);
2150 _mesa_sprintf (error_msg
, "Duplicate Varible Declaration: %s",
2153 _mesa_set_program_error (ctx
, Program
->Position
, error_msg
);
2154 _mesa_error (ctx
, GL_INVALID_OPERATION
, error_msg
);
2156 _mesa_free (error_msg
);
2160 temp_var
->type
= vt_address
;
2162 if (Program
->Base
.NumAddressRegs
>=
2163 ctx
->Const
.MaxVertexProgramAddressRegs
) {
2164 _mesa_set_program_error (ctx
, Program
->Position
,
2165 "Too many ADDRESS variables declared");
2166 _mesa_error (ctx
, GL_INVALID_OPERATION
,
2167 "Too many ADDRESS variables declared");
2171 temp_var
->address_binding
= Program
->Base
.NumAddressRegs
;
2172 Program
->Base
.NumAddressRegs
++;
2180 * Parse a program declaration
2182 * \return 0 on sucess, 1 on error
2185 parse_declaration (GLcontext
* ctx
, GLubyte
** inst
, struct var_cache
**vc_head
,
2186 struct arb_program
*Program
)
2190 switch (*(*inst
)++) {
2192 err
= parse_address (ctx
, inst
, vc_head
, Program
);
2196 err
= parse_alias (ctx
, inst
, vc_head
, Program
);
2200 err
= parse_attrib (ctx
, inst
, vc_head
, Program
);
2204 err
= parse_output (ctx
, inst
, vc_head
, Program
);
2208 err
= parse_param (ctx
, inst
, vc_head
, Program
);
2212 err
= parse_temp (ctx
, inst
, vc_head
, Program
);
2220 * Handle the parsing out of a masked destination register
2222 * If we are a vertex program, make sure we don't write to
2223 * result.position of we have specified that the program is
2224 * position invariant
2226 * \param File - The register file we write to
2227 * \param Index - The register index we write to
2228 * \param WriteMask - The mask controlling which components we write (1->write)
2230 * \return 0 on sucess, 1 on error
2233 parse_masked_dst_reg (GLcontext
* ctx
, GLubyte
** inst
,
2234 struct var_cache
**vc_head
, struct arb_program
*Program
,
2235 GLint
* File
, GLint
* Index
, GLint
*WriteMask
)
2238 struct var_cache
*dst
;
2240 /* We either have a result register specified, or a
2241 * variable that may or may not be writable
2243 switch (*(*inst
)++) {
2244 case REGISTER_RESULT
:
2245 if (parse_result_binding
2246 (ctx
, inst
, &result
, (GLuint
*) Index
, Program
))
2248 *File
= PROGRAM_OUTPUT
;
2251 case REGISTER_ESTABLISHED_NAME
:
2252 dst
= parse_string (inst
, vc_head
, Program
, &result
);
2253 Program
->Position
= parse_position (inst
);
2255 /* If the name has never been added to our symbol table, we're hosed */
2257 _mesa_set_program_error (ctx
, Program
->Position
,
2258 "0: Undefined variable");
2259 _mesa_error (ctx
, GL_INVALID_OPERATION
, "0: Undefined variable: %s",
2264 switch (dst
->type
) {
2266 *File
= PROGRAM_OUTPUT
;
2267 *Index
= dst
->output_binding_idx
;
2271 *File
= PROGRAM_TEMPORARY
;
2272 *Index
= dst
->temp_binding
;
2275 /* If the var type is not vt_output or vt_temp, no go */
2277 _mesa_set_program_error (ctx
, Program
->Position
,
2278 "Destination register is read only");
2279 _mesa_error (ctx
, GL_INVALID_OPERATION
,
2280 "Destination register is read only: %s",
2287 _mesa_set_program_error (ctx
, Program
->Position
,
2288 "Unexpected opcode in parse_masked_dst_reg()");
2289 _mesa_error (ctx
, GL_INVALID_OPERATION
,
2290 "Unexpected opcode in parse_masked_dst_reg()");
2295 /* Position invariance test */
2296 /* This test is done now in syntax portion - when position invariance OPTION
2297 is specified, "result.position" rule is disabled so there is no way
2298 to write the position
2300 /*if ((Program->HintPositionInvariant) && (*File == PROGRAM_OUTPUT) &&
2302 _mesa_set_program_error (ctx, Program->Position,
2303 "Vertex program specified position invariance and wrote vertex position");
2304 _mesa_error (ctx, GL_INVALID_OPERATION,
2305 "Vertex program specified position invariance and wrote vertex position");
2308 /* And then the mask.
2314 * ==> Need to reverse the order of bits for this!
2316 tmp
= (GLint
) *(*inst
)++;
2317 *WriteMask
= (((tmp
>>3) & 0x1) |
2327 * Handle the parsing of a address register
2329 * \param Index - The register index we write to
2331 * \return 0 on sucess, 1 on error
2334 parse_address_reg (GLcontext
* ctx
, GLubyte
** inst
,
2335 struct var_cache
**vc_head
,
2336 struct arb_program
*Program
, GLint
* Index
)
2338 struct var_cache
*dst
;
2342 dst
= parse_string (inst
, vc_head
, Program
, &result
);
2343 Program
->Position
= parse_position (inst
);
2345 /* If the name has never been added to our symbol table, we're hosed */
2347 _mesa_set_program_error (ctx
, Program
->Position
, "Undefined variable");
2348 _mesa_error (ctx
, GL_INVALID_OPERATION
, "Undefined variable: %s",
2353 if (dst
->type
!= vt_address
) {
2354 _mesa_set_program_error (ctx
, Program
->Position
,
2355 "Variable is not of type ADDRESS");
2356 _mesa_error (ctx
, GL_INVALID_OPERATION
,
2357 "Variable: %s is not of type ADDRESS", dst
->name
);
2365 * Handle the parsing out of a masked address register
2367 * \param Index - The register index we write to
2368 * \param WriteMask - The mask controlling which components we write (1->write)
2370 * \return 0 on sucess, 1 on error
2373 parse_masked_address_reg (GLcontext
* ctx
, GLubyte
** inst
,
2374 struct var_cache
**vc_head
,
2375 struct arb_program
*Program
, GLint
* Index
,
2376 GLboolean
* WriteMask
)
2378 if (parse_address_reg (ctx
, inst
, vc_head
, Program
, Index
))
2381 /* This should be 0x8 */
2384 /* Writemask of .x is implied */
2386 WriteMask
[1] = WriteMask
[2] = WriteMask
[3] = 0;
2393 * Parse out a swizzle mask.
2395 * The values in the input stream are:
2396 * COMPONENT_X -> x/r
2397 * COMPONENT_Y -> y/g
2401 * The values in the output mask are:
2407 * The len parameter allows us to grab 4 components for a vector
2408 * swizzle, or just 1 component for a scalar src register selection
2411 parse_swizzle_mask (GLubyte
** inst
, GLubyte
* mask
, GLint len
)
2415 for (a
= 0; a
< 4; a
++)
2418 for (a
= 0; a
< len
; a
++) {
2419 switch (*(*inst
)++) {
2444 parse_extended_swizzle_mask (GLubyte
** inst
, GLubyte
* mask
, GLboolean
* Negate
)
2450 for (a
= 0; a
< 4; a
++) {
2451 if (parse_sign (inst
) == -1)
2458 mask
[a
] = SWIZZLE_ZERO
;
2461 mask
[a
] = SWIZZLE_ONE
;
2464 mask
[a
] = SWIZZLE_X
;
2467 mask
[a
] = SWIZZLE_Y
;
2470 mask
[a
] = SWIZZLE_Z
;
2473 mask
[a
] = SWIZZLE_W
;
2479 mask
[a
] = SWIZZLE_ZERO
;
2481 mask
[a
] = SWIZZLE_ONE
;
2493 parse_src_reg (GLcontext
* ctx
, GLubyte
** inst
, struct var_cache
**vc_head
,
2494 struct arb_program
*Program
, GLint
* File
, GLint
* Index
,
2495 GLboolean
*IsRelOffset
)
2497 struct var_cache
*src
;
2498 GLuint binding_state
, binding_idx
, is_generic
, found
;
2503 /* And the binding for the src */
2504 switch (*(*inst
)++) {
2505 case REGISTER_ATTRIB
:
2506 if (parse_attrib_binding
2507 (ctx
, inst
, Program
, &binding_state
, &binding_idx
, &is_generic
))
2509 *File
= PROGRAM_INPUT
;
2510 *Index
= binding_idx
;
2512 /* We need to insert a dummy variable into the var_cache so we can
2513 * catch generic vertex attrib aliasing errors
2515 var_cache_create(&src
);
2516 src
->type
= vt_attrib
;
2517 src
->name
= (GLubyte
*)_mesa_strdup("Dummy Attrib Variable");
2518 src
->attrib_binding
= binding_state
;
2519 src
->attrib_binding_idx
= binding_idx
;
2520 src
->attrib_is_generic
= is_generic
;
2521 var_cache_append(vc_head
, src
);
2522 if (generic_attrib_check(*vc_head
)) {
2523 _mesa_set_program_error (ctx
, Program
->Position
,
2524 "Cannot use both a generic vertex attribute and a specific attribute of the same type");
2525 _mesa_error (ctx
, GL_INVALID_OPERATION
,
2526 "Cannot use both a generic vertex attribute and a specific attribute of the same type");
2531 case REGISTER_PARAM
:
2533 case PARAM_ARRAY_ELEMENT
:
2535 src
= parse_string (inst
, vc_head
, Program
, &found
);
2536 Program
->Position
= parse_position (inst
);
2539 _mesa_set_program_error (ctx
, Program
->Position
,
2540 "2: Undefined variable");
2541 _mesa_error (ctx
, GL_INVALID_OPERATION
,
2542 "2: Undefined variable: %s", src
->name
);
2546 *File
= src
->param_binding_type
;
2548 switch (*(*inst
)++) {
2549 case ARRAY_INDEX_ABSOLUTE
:
2550 offset
= parse_integer (inst
, Program
);
2553 || (offset
>= (int)src
->param_binding_length
)) {
2554 _mesa_set_program_error (ctx
, Program
->Position
,
2555 "Index out of range");
2556 _mesa_error (ctx
, GL_INVALID_OPERATION
,
2557 "Index %d out of range for %s", offset
,
2562 *Index
= src
->param_binding_begin
+ offset
;
2565 case ARRAY_INDEX_RELATIVE
:
2567 GLint addr_reg_idx
, rel_off
;
2569 /* First, grab the address regiseter */
2570 if (parse_address_reg (ctx
, inst
, vc_head
, Program
, &addr_reg_idx
))
2579 /* Then the relative offset */
2580 if (parse_relative_offset(ctx
, inst
, Program
, &rel_off
)) return 1;
2582 /* And store it properly */
2583 *Index
= src
->param_binding_begin
+ rel_off
;
2592 if (parse_param_use (ctx
, inst
, vc_head
, Program
, &src
))
2595 *File
= src
->param_binding_type
;
2596 *Index
= src
->param_binding_begin
;
2601 case REGISTER_ESTABLISHED_NAME
:
2603 src
= parse_string (inst
, vc_head
, Program
, &found
);
2604 Program
->Position
= parse_position (inst
);
2606 /* If the name has never been added to our symbol table, we're hosed */
2608 _mesa_set_program_error (ctx
, Program
->Position
,
2609 "3: Undefined variable");
2610 _mesa_error (ctx
, GL_INVALID_OPERATION
, "3: Undefined variable: %s",
2615 switch (src
->type
) {
2617 *File
= PROGRAM_INPUT
;
2618 *Index
= src
->attrib_binding_idx
;
2621 /* XXX: We have to handle offsets someplace in here! -- or are those above? */
2623 *File
= src
->param_binding_type
;
2624 *Index
= src
->param_binding_begin
;
2628 *File
= PROGRAM_TEMPORARY
;
2629 *Index
= src
->temp_binding
;
2632 /* If the var type is vt_output no go */
2634 _mesa_set_program_error (ctx
, Program
->Position
,
2635 "destination register is read only");
2636 _mesa_error (ctx
, GL_INVALID_OPERATION
,
2637 "destination register is read only: %s",
2644 _mesa_set_program_error (ctx
, Program
->Position
,
2645 "Unknown token in parse_src_reg");
2646 _mesa_error (ctx
, GL_INVALID_OPERATION
,
2647 "Unknown token in parse_src_reg");
2657 parse_fp_vector_src_reg (GLcontext
* ctx
, GLubyte
** inst
,
2658 struct var_cache
**vc_head
, struct arb_program
*Program
,
2659 struct fp_src_register
*reg
)
2666 GLboolean IsRelOffset
;
2669 Negate
= (parse_sign (inst
) == -1) ? 0xf : 0x0;
2671 /* And the src reg */
2672 if (parse_src_reg (ctx
, inst
, vc_head
, Program
, &File
, &Index
, &IsRelOffset
))
2675 /* finally, the swizzle */
2676 parse_swizzle_mask (inst
, Swizzle
, 4);
2680 reg
->Abs
= 0; /* NV only */
2681 reg
->NegateAbs
= 0; /* NV only */
2682 reg
->NegateBase
= Negate
;
2683 reg
->Swizzle
= (Swizzle
[0] << 0 |
2693 parse_fp_dst_reg(GLcontext
* ctx
, GLubyte
** inst
,
2694 struct var_cache
**vc_head
, struct arb_program
*Program
,
2695 struct fp_dst_register
*reg
)
2697 GLint file
, idx
, mask
;
2699 if (parse_masked_dst_reg (ctx
, inst
, vc_head
, Program
, &file
, &idx
, &mask
))
2702 reg
->CondMask
= 0; /* NV only */
2703 reg
->CondSwizzle
= 0; /* NV only */
2706 reg
->WriteMask
= mask
;
2713 parse_fp_scalar_src_reg (GLcontext
* ctx
, GLubyte
** inst
,
2714 struct var_cache
**vc_head
, struct arb_program
*Program
,
2715 struct fp_src_register
*reg
)
2722 GLboolean IsRelOffset
;
2725 Negate
= (parse_sign (inst
) == -1) ? 0x1 : 0x0;
2727 /* And the src reg */
2728 if (parse_src_reg (ctx
, inst
, vc_head
, Program
, &File
, &Index
, &IsRelOffset
))
2731 /* finally, the swizzle */
2732 parse_swizzle_mask (inst
, Swizzle
, 1);
2736 reg
->Abs
= 0; /* NV only */
2737 reg
->NegateAbs
= 0; /* NV only */
2738 reg
->NegateBase
= Negate
;
2739 reg
->Swizzle
= (Swizzle
[0] << 0);
2746 * This is a big mother that handles getting opcodes into the instruction
2747 * and handling the src & dst registers for fragment program instructions
2750 parse_fp_instruction (GLcontext
* ctx
, GLubyte
** inst
,
2751 struct var_cache
**vc_head
, struct arb_program
*Program
,
2752 struct fp_instruction
*fp
)
2756 GLubyte instClass
, type
, code
;
2759 /* No condition codes in ARB_fp */
2760 fp
->UpdateCondRegister
= 0;
2762 /* Record the position in the program string for debugging */
2763 fp
->StringPos
= Program
->Position
;
2767 /* OP_ALU_INST or OP_TEX_INST */
2768 instClass
= *(*inst
)++;
2770 /* OP_ALU_{VECTOR, SCALAR, BINSC, BIN, TRI, SWZ},
2771 * OP_TEX_{SAMPLE, KIL}
2775 /* The actual opcode name */
2778 /* Increment the correct count */
2779 switch (instClass
) {
2781 Program
->NumAluInstructions
++;
2784 Program
->NumTexInstructions
++;
2789 fp
->Precision
= FLOAT32
;
2791 fp
->DstReg
.CondMask
= COND_TR
;
2799 fp
->Opcode
= FP_OPCODE_ABS
;
2805 fp
->Opcode
= FP_OPCODE_FLR
;
2811 fp
->Opcode
= FP_OPCODE_FRC
;
2817 fp
->Opcode
= FP_OPCODE_LIT
;
2823 fp
->Opcode
= FP_OPCODE_MOV
;
2827 if (parse_fp_dst_reg (ctx
, inst
, vc_head
, Program
, &fp
->DstReg
))
2830 if (parse_fp_vector_src_reg(ctx
, inst
, vc_head
, Program
, &fp
->SrcReg
[0]))
2839 fp
->Opcode
= FP_OPCODE_COS
;
2845 fp
->Opcode
= FP_OPCODE_EX2
;
2851 fp
->Opcode
= FP_OPCODE_LG2
;
2857 fp
->Opcode
= FP_OPCODE_RCP
;
2863 fp
->Opcode
= FP_OPCODE_RSQ
;
2869 fp
->Opcode
= FP_OPCODE_SIN
;
2876 fp
->Opcode
= FP_OPCODE_SCS
;
2880 if (parse_fp_dst_reg (ctx
, inst
, vc_head
, Program
, &fp
->DstReg
))
2883 if (parse_fp_scalar_src_reg(ctx
, inst
, vc_head
, Program
, &fp
->SrcReg
[0]))
2892 fp
->Opcode
= FP_OPCODE_POW
;
2896 if (parse_fp_dst_reg(ctx
, inst
, vc_head
, Program
, &fp
->DstReg
))
2899 for (a
= 0; a
< 2; a
++) {
2900 if (parse_fp_scalar_src_reg(ctx
, inst
, vc_head
, Program
, &fp
->SrcReg
[a
]))
2911 fp
->Opcode
= FP_OPCODE_ADD
;
2917 fp
->Opcode
= FP_OPCODE_DP3
;
2923 fp
->Opcode
= FP_OPCODE_DP4
;
2929 fp
->Opcode
= FP_OPCODE_DPH
;
2935 fp
->Opcode
= FP_OPCODE_DST
;
2941 fp
->Opcode
= FP_OPCODE_MAX
;
2947 fp
->Opcode
= FP_OPCODE_MIN
;
2953 fp
->Opcode
= FP_OPCODE_MUL
;
2959 fp
->Opcode
= FP_OPCODE_SGE
;
2965 fp
->Opcode
= FP_OPCODE_SLT
;
2971 fp
->Opcode
= FP_OPCODE_SUB
;
2977 fp
->Opcode
= FP_OPCODE_XPD
;
2981 if (parse_fp_dst_reg (ctx
, inst
, vc_head
, Program
, &fp
->DstReg
))
2983 for (a
= 0; a
< 2; a
++) {
2984 if (parse_fp_vector_src_reg(ctx
, inst
, vc_head
, Program
, &fp
->SrcReg
[a
]))
2994 fp
->Opcode
= FP_OPCODE_CMP
;
3000 fp
->Opcode
= FP_OPCODE_LRP
;
3006 fp
->Opcode
= FP_OPCODE_MAD
;
3010 if (parse_fp_dst_reg (ctx
, inst
, vc_head
, Program
, &fp
->DstReg
))
3013 for (a
= 0; a
< 3; a
++) {
3014 if (parse_fp_vector_src_reg(ctx
, inst
, vc_head
, Program
, &fp
->SrcReg
[a
]))
3024 fp
->Opcode
= FP_OPCODE_SWZ
;
3027 if (parse_fp_dst_reg (ctx
, inst
, vc_head
, Program
, &fp
->DstReg
))
3031 GLubyte Swizzle
[4]; /* FP's swizzle mask is a GLubyte, while VP's is GLuint */
3035 if (parse_src_reg(ctx
, inst
, vc_head
, Program
, &File
, &Index
, &rel
))
3037 parse_extended_swizzle_mask (inst
, Swizzle
, Negate
);
3038 fp
->SrcReg
[0].File
= File
;
3039 fp
->SrcReg
[0].Index
= Index
;
3040 fp
->SrcReg
[0].NegateBase
= (Negate
[0] << 0 |
3044 fp
->SrcReg
[0].Swizzle
= (Swizzle
[0] << 0 |
3056 fp
->Opcode
= FP_OPCODE_TEX
;
3062 fp
->Opcode
= FP_OPCODE_TXP
;
3068 fp
->Opcode
= FP_OPCODE_TXB
;
3072 if (parse_fp_dst_reg (ctx
, inst
, vc_head
, Program
, &fp
->DstReg
))
3075 if (parse_fp_vector_src_reg(ctx
, inst
, vc_head
, Program
, &fp
->SrcReg
[0]))
3079 if (parse_texcoord_num (ctx
, inst
, Program
, &texcoord
))
3081 fp
->TexSrcUnit
= texcoord
;
3084 switch (*(*inst
)++) {
3086 fp
->TexSrcIdx
= TEXTURE_1D_INDEX
;
3089 fp
->TexSrcIdx
= TEXTURE_2D_INDEX
;
3092 fp
->TexSrcIdx
= TEXTURE_3D_INDEX
;
3094 case TEXTARGET_RECT
:
3095 fp
->TexSrcIdx
= TEXTURE_RECT_INDEX
;
3097 case TEXTARGET_CUBE
:
3098 fp
->TexSrcIdx
= TEXTURE_CUBE_INDEX
;
3100 case TEXTARGET_SHADOW1D
:
3101 case TEXTARGET_SHADOW2D
:
3102 case TEXTARGET_SHADOWRECT
:
3103 /* TODO ARB_fragment_program_shadow code */
3106 Program
->TexturesUsed
[texcoord
] |= (1<<fp
->TexSrcIdx
);
3110 if (parse_fp_vector_src_reg(ctx
, inst
, vc_head
, Program
, &fp
->SrcReg
[0]))
3119 parse_vp_dst_reg(GLcontext
* ctx
, GLubyte
** inst
,
3120 struct var_cache
**vc_head
, struct arb_program
*Program
,
3121 struct vp_dst_register
*reg
)
3123 GLint file
, idx
, mask
;
3125 if (parse_masked_dst_reg(ctx
, inst
, vc_head
, Program
, &file
, &idx
, &mask
))
3130 reg
->WriteMask
= mask
;
3135 * Handle the parsing out of a masked address register
3137 * \param Index - The register index we write to
3138 * \param WriteMask - The mask controlling which components we write (1->write)
3140 * \return 0 on sucess, 1 on error
3143 parse_vp_address_reg (GLcontext
* ctx
, GLubyte
** inst
,
3144 struct var_cache
**vc_head
,
3145 struct arb_program
*Program
,
3146 struct vp_dst_register
*reg
)
3150 if (parse_address_reg (ctx
, inst
, vc_head
, Program
, &idx
))
3153 /* This should be 0x8 */
3156 reg
->File
= PROGRAM_ADDRESS
;
3159 /* Writemask of .x is implied */
3160 reg
->WriteMask
= 0x1;
3167 parse_vp_vector_src_reg (GLcontext
* ctx
, GLubyte
** inst
,
3168 struct var_cache
**vc_head
, struct arb_program
*Program
,
3169 struct vp_src_register
*reg
)
3176 GLboolean IsRelOffset
;
3179 Negate
= (parse_sign (inst
) == -1) ? 0xf : 0x0;
3181 /* And the src reg */
3182 if (parse_src_reg (ctx
, inst
, vc_head
, Program
, &File
, &Index
, &IsRelOffset
))
3185 /* finally, the swizzle */
3186 parse_swizzle_mask (inst
, Swizzle
, 4);
3190 reg
->Swizzle
= ((Swizzle
[0] << 0) |
3194 reg
->Negate
= Negate
;
3195 reg
->RelAddr
= IsRelOffset
;
3201 parse_vp_scalar_src_reg (GLcontext
* ctx
, GLubyte
** inst
,
3202 struct var_cache
**vc_head
, struct arb_program
*Program
,
3203 struct vp_src_register
*reg
)
3210 GLboolean IsRelOffset
;
3213 Negate
= (parse_sign (inst
) == -1) ? 0x1 : 0x0;
3215 /* And the src reg */
3216 if (parse_src_reg (ctx
, inst
, vc_head
, Program
, &File
, &Index
, &IsRelOffset
))
3219 /* finally, the swizzle */
3220 parse_swizzle_mask (inst
, Swizzle
, 1);
3224 reg
->Swizzle
= (Swizzle
[0] << 0);
3225 reg
->Negate
= Negate
;
3226 reg
->RelAddr
= IsRelOffset
;
3232 * This is a big mother that handles getting opcodes into the instruction
3233 * and handling the src & dst registers for vertex program instructions
3236 parse_vp_instruction (GLcontext
* ctx
, GLubyte
** inst
,
3237 struct var_cache
**vc_head
, struct arb_program
*Program
,
3238 struct vp_instruction
*vp
)
3243 /* OP_ALU_{ARL, VECTOR, SCALAR, BINSC, BIN, TRI, SWZ} */
3246 /* The actual opcode name */
3249 /* Record the position in the program string for debugging */
3250 vp
->StringPos
= Program
->Position
;
3252 vp
->SrcReg
[0].RelAddr
= vp
->SrcReg
[1].RelAddr
= vp
->SrcReg
[2].RelAddr
= 0;
3253 vp
->SrcReg
[0].Swizzle
= SWIZZLE_NOOP
;
3254 vp
->SrcReg
[1].Swizzle
= SWIZZLE_NOOP
;
3255 vp
->SrcReg
[2].Swizzle
= SWIZZLE_NOOP
;
3256 vp
->DstReg
.WriteMask
= 0xf;
3261 vp
->Opcode
= VP_OPCODE_ARL
;
3263 /* Remember to set SrcReg.RelAddr; */
3265 /* Get the masked address register [dst] */
3266 if (parse_vp_address_reg(ctx
, inst
, vc_head
, Program
, &vp
->DstReg
))
3269 vp
->DstReg
.File
= PROGRAM_ADDRESS
;
3271 /* Get a scalar src register */
3272 if (parse_vp_scalar_src_reg(ctx
, inst
, vc_head
, Program
, &vp
->SrcReg
[0]))
3280 vp
->Opcode
= VP_OPCODE_ABS
;
3283 vp
->Opcode
= VP_OPCODE_FLR
;
3286 vp
->Opcode
= VP_OPCODE_FRC
;
3289 vp
->Opcode
= VP_OPCODE_LIT
;
3292 vp
->Opcode
= VP_OPCODE_MOV
;
3296 if (parse_vp_dst_reg(ctx
, inst
, vc_head
, Program
, &vp
->DstReg
))
3299 if (parse_vp_vector_src_reg(ctx
, inst
, vc_head
, Program
, &vp
->SrcReg
[0]))
3306 vp
->Opcode
= VP_OPCODE_EX2
;
3309 vp
->Opcode
= VP_OPCODE_EXP
;
3312 vp
->Opcode
= VP_OPCODE_LG2
;
3315 vp
->Opcode
= VP_OPCODE_LOG
;
3318 vp
->Opcode
= VP_OPCODE_RCP
;
3321 vp
->Opcode
= VP_OPCODE_RSQ
;
3324 if (parse_vp_dst_reg(ctx
, inst
, vc_head
, Program
, &vp
->DstReg
))
3327 if (parse_vp_scalar_src_reg(ctx
, inst
, vc_head
, Program
, &vp
->SrcReg
[0]))
3334 vp
->Opcode
= VP_OPCODE_POW
;
3337 if (parse_vp_dst_reg(ctx
, inst
, vc_head
, Program
, &vp
->DstReg
))
3340 for (a
= 0; a
< 2; a
++) {
3341 if (parse_vp_scalar_src_reg(ctx
, inst
, vc_head
, Program
, &vp
->SrcReg
[a
]))
3349 vp
->Opcode
= VP_OPCODE_ADD
;
3352 vp
->Opcode
= VP_OPCODE_DP3
;
3355 vp
->Opcode
= VP_OPCODE_DP4
;
3358 vp
->Opcode
= VP_OPCODE_DPH
;
3361 vp
->Opcode
= VP_OPCODE_DST
;
3364 vp
->Opcode
= VP_OPCODE_MAX
;
3367 vp
->Opcode
= VP_OPCODE_MIN
;
3370 vp
->Opcode
= VP_OPCODE_MUL
;
3373 vp
->Opcode
= VP_OPCODE_SGE
;
3376 vp
->Opcode
= VP_OPCODE_SLT
;
3379 vp
->Opcode
= VP_OPCODE_SUB
;
3382 vp
->Opcode
= VP_OPCODE_XPD
;
3385 if (parse_vp_dst_reg(ctx
, inst
, vc_head
, Program
, &vp
->DstReg
))
3388 for (a
= 0; a
< 2; a
++) {
3389 if (parse_vp_vector_src_reg(ctx
, inst
, vc_head
, Program
, &vp
->SrcReg
[a
]))
3397 vp
->Opcode
= VP_OPCODE_MAD
;
3401 if (parse_vp_dst_reg(ctx
, inst
, vc_head
, Program
, &vp
->DstReg
))
3404 for (a
= 0; a
< 3; a
++) {
3405 if (parse_vp_vector_src_reg(ctx
, inst
, vc_head
, Program
, &vp
->SrcReg
[a
]))
3413 vp
->Opcode
= VP_OPCODE_SWZ
;
3417 GLubyte Swizzle
[4]; /* FP's swizzle mask is a GLubyte, while VP's is GLuint */
3422 if (parse_vp_dst_reg(ctx
, inst
, vc_head
, Program
, &vp
->DstReg
))
3425 if (parse_src_reg(ctx
, inst
, vc_head
, Program
, &File
, &Index
, &RelAddr
))
3427 parse_extended_swizzle_mask (inst
, Swizzle
, Negate
);
3428 vp
->SrcReg
[0].File
= File
;
3429 vp
->SrcReg
[0].Index
= Index
;
3430 vp
->SrcReg
[0].Negate
= (Negate
[0] << 0 |
3434 vp
->SrcReg
[0].Swizzle
= (Swizzle
[0] << 0 |
3438 vp
->SrcReg
[0].RelAddr
= RelAddr
;
3448 print_state_token (GLint token
)
3451 case STATE_MATERIAL
:
3452 fprintf (stderr
, "STATE_MATERIAL ");
3455 fprintf (stderr
, "STATE_LIGHT ");
3458 case STATE_LIGHTMODEL_AMBIENT
:
3459 fprintf (stderr
, "STATE_AMBIENT ");
3462 case STATE_LIGHTMODEL_SCENECOLOR
:
3463 fprintf (stderr
, "STATE_SCENECOLOR ");
3466 case STATE_LIGHTPROD
:
3467 fprintf (stderr
, "STATE_LIGHTPROD ");
3471 fprintf (stderr
, "STATE_TEXGEN ");
3474 case STATE_FOG_COLOR
:
3475 fprintf (stderr
, "STATE_FOG_COLOR ");
3478 case STATE_FOG_PARAMS
:
3479 fprintf (stderr
, "STATE_FOG_PARAMS ");
3482 case STATE_CLIPPLANE
:
3483 fprintf (stderr
, "STATE_CLIPPLANE ");
3486 case STATE_POINT_SIZE
:
3487 fprintf (stderr
, "STATE_POINT_SIZE ");
3490 case STATE_POINT_ATTENUATION
:
3491 fprintf (stderr
, "STATE_ATTENUATION ");
3495 fprintf (stderr
, "STATE_MATRIX ");
3498 case STATE_MODELVIEW
:
3499 fprintf (stderr
, "STATE_MODELVIEW ");
3502 case STATE_PROJECTION
:
3503 fprintf (stderr
, "STATE_PROJECTION ");
3507 fprintf (stderr
, "STATE_MVP ");
3511 fprintf (stderr
, "STATE_TEXTURE ");
3515 fprintf (stderr
, "STATE_PROGRAM ");
3518 case STATE_MATRIX_INVERSE
:
3519 fprintf (stderr
, "STATE_INVERSE ");
3522 case STATE_MATRIX_TRANSPOSE
:
3523 fprintf (stderr
, "STATE_TRANSPOSE ");
3526 case STATE_MATRIX_INVTRANS
:
3527 fprintf (stderr
, "STATE_INVTRANS ");
3531 fprintf (stderr
, "STATE_AMBIENT ");
3535 fprintf (stderr
, "STATE_DIFFUSE ");
3538 case STATE_SPECULAR
:
3539 fprintf (stderr
, "STATE_SPECULAR ");
3542 case STATE_EMISSION
:
3543 fprintf (stderr
, "STATE_EMISSION ");
3546 case STATE_SHININESS
:
3547 fprintf (stderr
, "STATE_SHININESS ");
3551 fprintf (stderr
, "STATE_HALF ");
3554 case STATE_POSITION
:
3555 fprintf (stderr
, "STATE_POSITION ");
3558 case STATE_ATTENUATION
:
3559 fprintf (stderr
, "STATE_ATTENUATION ");
3562 case STATE_SPOT_DIRECTION
:
3563 fprintf (stderr
, "STATE_DIRECTION ");
3566 case STATE_TEXGEN_EYE_S
:
3567 fprintf (stderr
, "STATE_TEXGEN_EYE_S ");
3570 case STATE_TEXGEN_EYE_T
:
3571 fprintf (stderr
, "STATE_TEXGEN_EYE_T ");
3574 case STATE_TEXGEN_EYE_R
:
3575 fprintf (stderr
, "STATE_TEXGEN_EYE_R ");
3578 case STATE_TEXGEN_EYE_Q
:
3579 fprintf (stderr
, "STATE_TEXGEN_EYE_Q ");
3582 case STATE_TEXGEN_OBJECT_S
:
3583 fprintf (stderr
, "STATE_TEXGEN_EYE_S ");
3586 case STATE_TEXGEN_OBJECT_T
:
3587 fprintf (stderr
, "STATE_TEXGEN_OBJECT_T ");
3590 case STATE_TEXGEN_OBJECT_R
:
3591 fprintf (stderr
, "STATE_TEXGEN_OBJECT_R ");
3594 case STATE_TEXGEN_OBJECT_Q
:
3595 fprintf (stderr
, "STATE_TEXGEN_OBJECT_Q ");
3598 case STATE_TEXENV_COLOR
:
3599 fprintf (stderr
, "STATE_TEXENV_COLOR ");
3602 case STATE_DEPTH_RANGE
:
3603 fprintf (stderr
, "STATE_DEPTH_RANGE ");
3606 case STATE_VERTEX_PROGRAM
:
3607 fprintf (stderr
, "STATE_VERTEX_PROGRAM ");
3610 case STATE_FRAGMENT_PROGRAM
:
3611 fprintf (stderr
, "STATE_FRAGMENT_PROGRAM ");
3615 fprintf (stderr
, "STATE_ENV ");
3619 fprintf (stderr
, "STATE_LOCAL ");
3623 fprintf (stderr
, "[%d] ", token
);
3628 debug_variables (GLcontext
* ctx
, struct var_cache
*vc_head
,
3629 struct arb_program
*Program
)
3631 struct var_cache
*vc
;
3634 fprintf (stderr
, "debug_variables, vc_head: %x\n", vc_head
);
3636 /* First of all, print out the contents of the var_cache */
3639 fprintf (stderr
, "[%x]\n", vc
);
3642 fprintf (stderr
, "UNDEFINED %s\n", vc
->name
);
3645 fprintf (stderr
, "ATTRIB %s\n", vc
->name
);
3646 fprintf (stderr
, " binding: 0x%x\n", vc
->attrib_binding
);
3649 fprintf (stderr
, "PARAM %s begin: %d len: %d\n", vc
->name
,
3650 vc
->param_binding_begin
, vc
->param_binding_length
);
3651 b
= vc
->param_binding_begin
;
3652 for (a
= 0; a
< vc
->param_binding_length
; a
++) {
3653 fprintf (stderr
, "%s\n",
3654 Program
->Parameters
->Parameters
[a
+ b
].Name
);
3655 if (Program
->Parameters
->Parameters
[a
+ b
].Type
== STATE
) {
3656 print_state_token (Program
->Parameters
->Parameters
[a
+ b
].
3658 print_state_token (Program
->Parameters
->Parameters
[a
+ b
].
3660 print_state_token (Program
->Parameters
->Parameters
[a
+ b
].
3662 print_state_token (Program
->Parameters
->Parameters
[a
+ b
].
3664 print_state_token (Program
->Parameters
->Parameters
[a
+ b
].
3666 print_state_token (Program
->Parameters
->Parameters
[a
+ b
].
3670 fprintf (stderr
, "%f %f %f %f\n",
3671 Program
->Parameters
->Parameters
[a
+ b
].Values
[0],
3672 Program
->Parameters
->Parameters
[a
+ b
].Values
[1],
3673 Program
->Parameters
->Parameters
[a
+ b
].Values
[2],
3674 Program
->Parameters
->Parameters
[a
+ b
].Values
[3]);
3678 fprintf (stderr
, "TEMP %s\n", vc
->name
);
3679 fprintf (stderr
, " binding: 0x%x\n", vc
->temp_binding
);
3682 fprintf (stderr
, "OUTPUT %s\n", vc
->name
);
3683 fprintf (stderr
, " binding: 0x%x\n", vc
->output_binding
);
3686 fprintf (stderr
, "ALIAS %s\n", vc
->name
);
3687 fprintf (stderr
, " binding: 0x%x (%s)\n",
3688 vc
->alias_binding
, vc
->alias_binding
->name
);
3699 * The main loop for parsing a fragment or vertex program
3701 * \return 0 on sucess, 1 on error
3704 parse_arb_program (GLcontext
* ctx
, GLubyte
* inst
, struct var_cache
**vc_head
,
3705 struct arb_program
*Program
)
3709 Program
->MajorVersion
= (GLuint
) * inst
++;
3710 Program
->MinorVersion
= (GLuint
) * inst
++;
3712 while (*inst
!= END
) {
3717 case ARB_PRECISION_HINT_FASTEST
:
3718 Program
->PrecisionOption
= GL_FASTEST
;
3721 case ARB_PRECISION_HINT_NICEST
:
3722 Program
->PrecisionOption
= GL_NICEST
;
3726 Program
->FogOption
= GL_EXP
;
3730 Program
->FogOption
= GL_EXP2
;
3733 case ARB_FOG_LINEAR
:
3734 Program
->FogOption
= GL_LINEAR
;
3737 case ARB_POSITION_INVARIANT
:
3738 if (Program
->Base
.Target
== GL_VERTEX_PROGRAM_ARB
)
3739 Program
->HintPositionInvariant
= 1;
3742 case ARB_FRAGMENT_PROGRAM_SHADOW
:
3743 if (Program
->Base
.Target
== GL_FRAGMENT_PROGRAM_ARB
) {
3744 /* TODO ARB_fragment_program_shadow code */
3748 case ARB_DRAW_BUFFERS
:
3749 if (Program
->Base
.Target
== GL_FRAGMENT_PROGRAM_ARB
) {
3750 /* do nothing for now */
3757 Program
->Position
= parse_position (&inst
);
3759 if (Program
->Base
.Target
== GL_FRAGMENT_PROGRAM_ARB
) {
3761 /* Check the instruction count
3762 * XXX: Does END count as an instruction?
3764 if (Program
->Base
.NumInstructions
+1 == MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS
) {
3765 _mesa_set_program_error (ctx
, Program
->Position
,
3766 "Max instruction count exceeded!");
3767 _mesa_error (ctx
, GL_INVALID_OPERATION
,
3768 "Max instruction count exceeded!");
3771 /* Realloc Program->FPInstructions */
3772 Program
->FPInstructions
=
3773 (struct fp_instruction
*) _mesa_realloc (Program
->FPInstructions
,
3774 Program
->Base
.NumInstructions
*sizeof(struct fp_instruction
),
3775 (Program
->Base
.NumInstructions
+1)*sizeof (struct fp_instruction
));
3777 /* parse the current instruction */
3778 err
= parse_fp_instruction (ctx
, &inst
, vc_head
, Program
,
3779 &Program
->FPInstructions
[Program
->Base
.NumInstructions
]);
3783 /* Check the instruction count
3784 * XXX: Does END count as an instruction?
3786 if (Program
->Base
.NumInstructions
+1 == MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS
) {
3787 _mesa_set_program_error (ctx
, Program
->Position
,
3788 "Max instruction count exceeded!");
3789 _mesa_error (ctx
, GL_INVALID_OPERATION
,
3790 "Max instruction count exceeded!");
3793 /* Realloc Program->VPInstructions */
3794 Program
->VPInstructions
=
3795 (struct vp_instruction
*) _mesa_realloc (Program
->VPInstructions
,
3796 Program
->Base
.NumInstructions
*sizeof(struct vp_instruction
),
3797 (Program
->Base
.NumInstructions
+1)*sizeof(struct vp_instruction
));
3799 /* parse the current instruction */
3800 err
= parse_vp_instruction (ctx
, &inst
, vc_head
, Program
,
3801 &Program
->VPInstructions
[Program
->Base
.NumInstructions
]);
3804 /* increment Program->Base.NumInstructions */
3805 Program
->Base
.NumInstructions
++;
3809 err
= parse_declaration (ctx
, &inst
, vc_head
, Program
);
3820 /* Finally, tag on an OPCODE_END instruction */
3821 if (Program
->Base
.Target
== GL_FRAGMENT_PROGRAM_ARB
) {
3822 Program
->FPInstructions
=
3823 (struct fp_instruction
*) _mesa_realloc (Program
->FPInstructions
,
3824 Program
->Base
.NumInstructions
*sizeof(struct fp_instruction
),
3825 (Program
->Base
.NumInstructions
+1)*sizeof(struct fp_instruction
));
3827 Program
->FPInstructions
[Program
->Base
.NumInstructions
].Opcode
= FP_OPCODE_END
;
3828 /* YYY Wrong Position in program, whatever, at least not random -> crash
3829 Program->Position = parse_position (&inst);
3831 Program
->FPInstructions
[Program
->Base
.NumInstructions
].StringPos
= Program
->Position
;
3832 Program
->FPInstructions
[Program
->Base
.NumInstructions
].Data
= NULL
;
3835 Program
->VPInstructions
=
3836 (struct vp_instruction
*) _mesa_realloc (Program
->VPInstructions
,
3837 Program
->Base
.NumInstructions
*sizeof(struct vp_instruction
),
3838 (Program
->Base
.NumInstructions
+1)*sizeof(struct vp_instruction
));
3840 Program
->VPInstructions
[Program
->Base
.NumInstructions
].Opcode
= VP_OPCODE_END
;
3841 /* YYY Wrong Position in program, whatever, at least not random -> crash
3842 Program->Position = parse_position (&inst);
3844 Program
->VPInstructions
[Program
->Base
.NumInstructions
].StringPos
= Program
->Position
;
3845 Program
->VPInstructions
[Program
->Base
.NumInstructions
].Data
= NULL
;
3848 /* increment Program->Base.NumInstructions */
3849 Program
->Base
.NumInstructions
++;
3855 __extension__
static char core_grammar_text
[] =
3856 #include "grammar_syn.h"
3859 static int set_reg8 (GLcontext
*ctx
, grammar id
, const byte
*name
, byte value
)
3861 char error_msg
[300];
3864 if (grammar_set_reg8 (id
, name
, value
))
3867 grammar_get_last_error ((byte
*) error_msg
, 300, &error_pos
);
3868 _mesa_set_program_error (ctx
, error_pos
, error_msg
);
3869 _mesa_error (ctx
, GL_INVALID_OPERATION
, "Grammar Register Error");
3873 static int extension_is_supported (const GLubyte
*ext
)
3875 const GLubyte
*extensions
= GL_CALL(GetString
)(GL_EXTENSIONS
);
3876 const GLubyte
*end
= extensions
+ _mesa_strlen ((const char *) extensions
);
3877 const GLint ext_len
= _mesa_strlen ((const char *) ext
);
3879 while (extensions
< end
)
3881 const GLubyte
*name_end
= (const GLubyte
*) strchr ((const char *) extensions
, ' ');
3882 if (name_end
== NULL
)
3884 if (name_end
- extensions
== ext_len
&& _mesa_strncmp ((const char *) ext
,
3885 (const char *) extensions
, ext_len
) == 0)
3887 extensions
= name_end
+ 1;
3893 static int enable_ext (GLcontext
*ctx
, grammar id
, const byte
*name
, const byte
*extname
)
3895 if (extension_is_supported (extname
))
3896 if (set_reg8 (ctx
, id
, name
, 0x01))
3902 * This kicks everything off.
3904 * \param ctx - The GL Context
3905 * \param str - The program string
3906 * \param len - The program string length
3907 * \param Program - The arb_program struct to return all the parsed info in
3908 * \return 0 on sucess, 1 on error
3911 _mesa_parse_arb_program (GLcontext
* ctx
, const GLubyte
* str
, GLsizei len
,
3912 struct arb_program
* program
)
3914 GLint a
, err
, error_pos
;
3915 char error_msg
[300];
3917 struct var_cache
*vc_head
;
3918 grammar arbprogram_syn_id
;
3919 GLubyte
*parsed
, *inst
;
3920 GLubyte
*strz
= NULL
;
3921 static int arbprogram_syn_is_ok
= 0; /* XXX temporary */
3923 /* Reset error state */
3924 _mesa_set_program_error(ctx
, -1, NULL
);
3927 fprintf (stderr
, "Loading grammar text!\n");
3930 /* check if the arb_grammar_text (arbprogram.syn) is syntactically correct */
3931 if (!arbprogram_syn_is_ok
) {
3932 grammar grammar_syn_id
;
3937 grammar_syn_id
= grammar_load_from_text ((byte
*) core_grammar_text
);
3938 if (grammar_syn_id
== 0) {
3939 grammar_get_last_error ((byte
*) error_msg
, 300, &error_pos
);
3940 _mesa_set_program_error (ctx
, error_pos
, error_msg
);
3941 _mesa_error (ctx
, GL_INVALID_OPERATION
,
3942 "Error loading grammar rule set");
3946 err
= grammar_check (grammar_syn_id
, (byte
*) arb_grammar_text
, &parsed
, &parsed_len
);
3948 /* NOTE: we cant destroy grammar_syn_id right here because grammar_destroy() can
3949 reset the last error
3953 grammar_get_last_error ((byte
*) error_msg
, 300, &error_pos
);
3954 _mesa_set_program_error (ctx
, error_pos
, error_msg
);
3955 _mesa_error (ctx
, GL_INVALID_OPERATION
, "Error loading grammar rule set");
3957 grammar_destroy (grammar_syn_id
);
3961 grammar_destroy (grammar_syn_id
);
3963 arbprogram_syn_is_ok
= 1;
3966 /* create the grammar object */
3967 arbprogram_syn_id
= grammar_load_from_text ((byte
*) arb_grammar_text
);
3968 if (arbprogram_syn_id
== 0) {
3969 grammar_get_last_error ((GLubyte
*) error_msg
, 300, &error_pos
);
3970 _mesa_set_program_error (ctx
, error_pos
, error_msg
);
3971 _mesa_error (ctx
, GL_INVALID_OPERATION
,
3972 "Error loading grammer rule set");
3976 /* Set program_target register value */
3977 if (set_reg8 (ctx
, arbprogram_syn_id
, (byte
*) "program_target",
3978 program
->Base
.Target
== GL_FRAGMENT_PROGRAM_ARB
? 0x10 : 0x20)) {
3979 grammar_destroy (arbprogram_syn_id
);
3983 /* Enable all active extensions */
3984 if (enable_ext (ctx
, arbprogram_syn_id
,
3985 (byte
*) "vertex_blend", (byte
*) "GL_ARB_vertex_blend") ||
3986 enable_ext (ctx
, arbprogram_syn_id
,
3987 (byte
*) "vertex_blend", (byte
*) "GL_EXT_vertex_weighting") ||
3988 enable_ext (ctx
, arbprogram_syn_id
,
3989 (byte
*) "matrix_palette", (byte
*) "GL_ARB_matrix_palette") ||
3990 enable_ext (ctx
, arbprogram_syn_id
,
3991 (byte
*) "point_parameters", (byte
*) "GL_ARB_point_parameters") ||
3992 enable_ext (ctx
, arbprogram_syn_id
,
3993 (byte
*) "point_parameters", (byte
*) "GL_EXT_point_parameters") ||
3994 enable_ext (ctx
, arbprogram_syn_id
,
3995 (byte
*) "secondary_color", (byte
*) "GL_EXT_secondary_color") ||
3996 enable_ext (ctx
, arbprogram_syn_id
,
3997 (byte
*) "fog_coord", (byte
*) "GL_EXT_fog_coord") ||
3998 enable_ext (ctx
, arbprogram_syn_id
,
3999 (byte
*) "texture_rectangle", (byte
*) "GL_ARB_texture_rectangle") ||
4000 enable_ext (ctx
, arbprogram_syn_id
,
4001 (byte
*) "texture_rectangle", (byte
*) "GL_EXT_texture_rectangle") ||
4002 enable_ext (ctx
, arbprogram_syn_id
,
4003 (byte
*) "texture_rectangle", (byte
*) "GL_NV_texture_rectangle") ||
4004 enable_ext (ctx
, arbprogram_syn_id
,
4005 (byte
*) "fragment_program_shadow", (byte
*) "GL_ARB_fragment_program_shadow") ||
4006 enable_ext (ctx
, arbprogram_syn_id
,
4007 (byte
*) "draw_buffers", (byte
*) "GL_ARB_draw_buffers")) {
4008 grammar_destroy (arbprogram_syn_id
);
4012 /* check for NULL character occurences */
4015 for (i
= 0; i
< len
; i
++)
4016 if (str
[i
] == '\0') {
4017 _mesa_set_program_error (ctx
, i
, "invalid character");
4018 _mesa_error (ctx
, GL_INVALID_OPERATION
, "Lexical Error");
4020 grammar_destroy (arbprogram_syn_id
);
4025 /* copy the program string to a null-terminated string */
4026 /* XXX should I check for NULL from malloc()? */
4027 strz
= (GLubyte
*) _mesa_malloc (len
+ 1);
4028 _mesa_memcpy (strz
, str
, len
);
4032 printf ("Checking Grammar!\n");
4034 /* do a fast check on program string - initial production buffer is 4K */
4035 err
= grammar_fast_check (arbprogram_syn_id
, strz
, &parsed
, &parsed_len
, 0x1000);
4037 /* Syntax parse error */
4040 grammar_get_last_error ((GLubyte
*) error_msg
, 300, &error_pos
);
4041 _mesa_set_program_error (ctx
, error_pos
, error_msg
);
4042 _mesa_error (ctx
, GL_INVALID_OPERATION
, "glProgramStringARB(syntax error)");
4044 /* useful for debugging */
4048 printf("Program: %s\n", (char *) strz
);
4049 printf("Error Pos: %d\n", ctx
->Program
.ErrorPos
);
4050 s
= (char *) _mesa_find_line_column(strz
, strz
+ctx
->Program
.ErrorPos
, &line
, &col
);
4051 printf("line %d col %d: %s\n", line
, col
, s
);
4054 grammar_destroy (arbprogram_syn_id
);
4059 printf ("Destroying grammer dict [parse retval: %d]\n", err
);
4061 grammar_destroy (arbprogram_syn_id
);
4063 /* Initialize the arb_program struct */
4064 program
->Base
.String
= strz
;
4065 program
->Base
.NumInstructions
=
4066 program
->Base
.NumTemporaries
=
4067 program
->Base
.NumParameters
=
4068 program
->Base
.NumAttributes
= program
->Base
.NumAddressRegs
= 0;
4069 program
->Parameters
= _mesa_new_parameter_list ();
4070 program
->InputsRead
= 0;
4071 program
->OutputsWritten
= 0;
4072 program
->Position
= 0;
4073 program
->MajorVersion
= program
->MinorVersion
= 0;
4074 program
->PrecisionOption
= GL_DONT_CARE
;
4075 program
->FogOption
= GL_NONE
;
4076 program
->HintPositionInvariant
= GL_FALSE
;
4077 for (a
= 0; a
< MAX_TEXTURE_IMAGE_UNITS
; a
++)
4078 program
->TexturesUsed
[a
] = 0;
4079 program
->NumAluInstructions
=
4080 program
->NumTexInstructions
=
4081 program
->NumTexIndirections
= 0;
4083 program
->FPInstructions
= NULL
;
4084 program
->VPInstructions
= NULL
;
4089 /* Start examining the tokens in the array */
4092 /* Check the grammer rev */
4093 if (*inst
++ != REVISION
) {
4094 _mesa_set_program_error (ctx
, 0, "Grammar version mismatch");
4095 _mesa_error (ctx
, GL_INVALID_OPERATION
, "glProgramStringARB(Grammar verison mismatch)");
4099 /* ignore program target */
4102 err
= parse_arb_program (ctx
, inst
, &vc_head
, program
);
4104 fprintf (stderr
, "Symantic analysis returns %d [1 is bad!]\n", err
);
4108 /*debug_variables(ctx, vc_head, program); */
4110 /* We're done with the parsed binary array */
4111 var_cache_destroy (&vc_head
);
4113 _mesa_free (parsed
);
4115 printf ("_mesa_parse_arb_program() done\n");