2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR 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
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
27 * ARB_vertex/fragment_program state management functions.
32 #include "main/glheader.h"
33 #include "main/context.h"
34 #include "main/hash.h"
35 #include "main/imports.h"
36 #include "main/macros.h"
37 #include "main/mtypes.h"
38 #include "main/arbprogram.h"
39 #include "program/arbprogparse.h"
40 #include "program/program.h"
41 #include "program/prog_print.h"
45 * Bind a program (make it current)
46 * \note Called from the GL API dispatcher by both glBindProgramNV
47 * and glBindProgramARB.
50 _mesa_BindProgramARB(GLenum target
, GLuint id
)
52 struct gl_program
*curProg
, *newProg
;
53 GET_CURRENT_CONTEXT(ctx
);
55 /* Error-check target and get curProg */
56 if (target
== GL_VERTEX_PROGRAM_ARB
&& ctx
->Extensions
.ARB_vertex_program
) {
57 curProg
= &ctx
->VertexProgram
.Current
->Base
;
59 else if (target
== GL_FRAGMENT_PROGRAM_ARB
60 && ctx
->Extensions
.ARB_fragment_program
) {
61 curProg
= &ctx
->FragmentProgram
.Current
->Base
;
64 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindProgramARB(target)");
69 * Get pointer to new program to bind.
70 * NOTE: binding to a non-existant program is not an error.
71 * That's supposed to be caught in glBegin.
74 /* Bind a default program */
76 if (target
== GL_VERTEX_PROGRAM_ARB
)
77 newProg
= &ctx
->Shared
->DefaultVertexProgram
->Base
;
79 newProg
= &ctx
->Shared
->DefaultFragmentProgram
->Base
;
82 /* Bind a user program */
83 newProg
= _mesa_lookup_program(ctx
, id
);
84 if (!newProg
|| newProg
== &_mesa_DummyProgram
) {
85 /* allocate a new program now */
86 newProg
= ctx
->Driver
.NewProgram(ctx
, target
, id
);
88 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindProgramARB");
91 _mesa_HashInsert(ctx
->Shared
->Programs
, id
, newProg
);
93 else if (newProg
->Target
!= target
) {
94 _mesa_error(ctx
, GL_INVALID_OPERATION
,
95 "glBindProgramARB(target mismatch)");
100 /** All error checking is complete now **/
102 if (curProg
->Id
== id
) {
103 /* binding same program - no change */
107 /* signal new program (and its new constants) */
108 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
| _NEW_PROGRAM_CONSTANTS
);
111 if (target
== GL_VERTEX_PROGRAM_ARB
) {
112 _mesa_reference_vertprog(ctx
, &ctx
->VertexProgram
.Current
,
113 gl_vertex_program(newProg
));
115 else if (target
== GL_FRAGMENT_PROGRAM_ARB
) {
116 _mesa_reference_fragprog(ctx
, &ctx
->FragmentProgram
.Current
,
117 gl_fragment_program(newProg
));
120 /* Never null pointers */
121 assert(ctx
->VertexProgram
.Current
);
122 assert(ctx
->FragmentProgram
.Current
);
124 if (ctx
->Driver
.BindProgram
)
125 ctx
->Driver
.BindProgram(ctx
, target
, newProg
);
130 * Delete a list of programs.
131 * \note Not compiled into display lists.
132 * \note Called by both glDeleteProgramsNV and glDeleteProgramsARB.
135 _mesa_DeleteProgramsARB(GLsizei n
, const GLuint
*ids
)
138 GET_CURRENT_CONTEXT(ctx
);
140 FLUSH_VERTICES(ctx
, 0);
143 _mesa_error( ctx
, GL_INVALID_VALUE
, "glDeleteProgramsNV" );
147 for (i
= 0; i
< n
; i
++) {
149 struct gl_program
*prog
= _mesa_lookup_program(ctx
, ids
[i
]);
150 if (prog
== &_mesa_DummyProgram
) {
151 _mesa_HashRemove(ctx
->Shared
->Programs
, ids
[i
]);
154 /* Unbind program if necessary */
155 switch (prog
->Target
) {
156 case GL_VERTEX_PROGRAM_ARB
:
157 if (ctx
->VertexProgram
.Current
&&
158 ctx
->VertexProgram
.Current
->Base
.Id
== ids
[i
]) {
159 /* unbind this currently bound program */
160 _mesa_BindProgramARB(prog
->Target
, 0);
163 case GL_FRAGMENT_PROGRAM_ARB
:
164 if (ctx
->FragmentProgram
.Current
&&
165 ctx
->FragmentProgram
.Current
->Base
.Id
== ids
[i
]) {
166 /* unbind this currently bound program */
167 _mesa_BindProgramARB(prog
->Target
, 0);
171 _mesa_problem(ctx
, "bad target in glDeleteProgramsNV");
174 /* The ID is immediately available for re-use now */
175 _mesa_HashRemove(ctx
->Shared
->Programs
, ids
[i
]);
176 _mesa_reference_program(ctx
, &prog
, NULL
);
184 * Generate a list of new program identifiers.
185 * \note Not compiled into display lists.
186 * \note Called by both glGenProgramsNV and glGenProgramsARB.
189 _mesa_GenProgramsARB(GLsizei n
, GLuint
*ids
)
193 GET_CURRENT_CONTEXT(ctx
);
196 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenPrograms");
203 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->Programs
, n
);
205 /* Insert pointer to dummy program as placeholder */
206 for (i
= 0; i
< (GLuint
) n
; i
++) {
207 _mesa_HashInsert(ctx
->Shared
->Programs
, first
+ i
, &_mesa_DummyProgram
);
210 /* Return the program names */
211 for (i
= 0; i
< (GLuint
) n
; i
++) {
218 * Determine if id names a vertex or fragment program.
219 * \note Not compiled into display lists.
220 * \note Called from both glIsProgramNV and glIsProgramARB.
221 * \param id is the program identifier
222 * \return GL_TRUE if id is a program, else GL_FALSE.
225 _mesa_IsProgramARB(GLuint id
)
227 struct gl_program
*prog
= NULL
;
228 GET_CURRENT_CONTEXT(ctx
);
229 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
234 prog
= _mesa_lookup_program(ctx
, id
);
235 if (prog
&& (prog
!= &_mesa_DummyProgram
))
242 get_local_param_pointer(struct gl_context
*ctx
, const char *func
,
243 GLenum target
, GLuint index
, GLfloat
**param
)
245 struct gl_program
*prog
;
248 if (target
== GL_VERTEX_PROGRAM_ARB
249 && ctx
->Extensions
.ARB_vertex_program
) {
250 prog
= &(ctx
->VertexProgram
.Current
->Base
);
251 maxParams
= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxLocalParams
;
253 else if (target
== GL_FRAGMENT_PROGRAM_ARB
254 && ctx
->Extensions
.ARB_fragment_program
) {
255 prog
= &(ctx
->FragmentProgram
.Current
->Base
);
256 maxParams
= ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxLocalParams
;
259 _mesa_error(ctx
, GL_INVALID_ENUM
,
264 if (index
>= maxParams
) {
265 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(index)", func
);
269 if (!prog
->LocalParams
) {
270 prog
->LocalParams
= calloc(maxParams
, sizeof(float[4]));
271 if (!prog
->LocalParams
)
275 *param
= prog
->LocalParams
[index
];
281 get_env_param_pointer(struct gl_context
*ctx
, const char *func
,
282 GLenum target
, GLuint index
, GLfloat
**param
)
284 if (target
== GL_FRAGMENT_PROGRAM_ARB
285 && ctx
->Extensions
.ARB_fragment_program
) {
286 if (index
>= ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxEnvParams
) {
287 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(index)", func
);
290 *param
= ctx
->FragmentProgram
.Parameters
[index
];
293 else if (target
== GL_VERTEX_PROGRAM_ARB
&&
294 ctx
->Extensions
.ARB_vertex_program
) {
295 if (index
>= ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxEnvParams
) {
296 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(index)", func
);
299 *param
= ctx
->VertexProgram
.Parameters
[index
];
302 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
308 _mesa_ProgramStringARB(GLenum target
, GLenum format
, GLsizei len
,
309 const GLvoid
*string
)
311 struct gl_program
*base
;
313 GET_CURRENT_CONTEXT(ctx
);
315 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
317 if (!ctx
->Extensions
.ARB_vertex_program
318 && !ctx
->Extensions
.ARB_fragment_program
) {
319 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glProgramStringARB()");
323 if (format
!= GL_PROGRAM_FORMAT_ASCII_ARB
) {
324 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramStringARB(format)");
328 if (target
== GL_VERTEX_PROGRAM_ARB
&& ctx
->Extensions
.ARB_vertex_program
) {
329 struct gl_vertex_program
*prog
= ctx
->VertexProgram
.Current
;
330 _mesa_parse_arb_vertex_program(ctx
, target
, string
, len
, prog
);
334 else if (target
== GL_FRAGMENT_PROGRAM_ARB
335 && ctx
->Extensions
.ARB_fragment_program
) {
336 struct gl_fragment_program
*prog
= ctx
->FragmentProgram
.Current
;
337 _mesa_parse_arb_fragment_program(ctx
, target
, string
, len
, prog
);
342 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramStringARB(target)");
346 failed
= ctx
->Program
.ErrorPos
!= -1;
349 /* finally, give the program to the driver for translation/checking */
350 if (!ctx
->Driver
.ProgramStringNotify(ctx
, target
, base
)) {
352 _mesa_error(ctx
, GL_INVALID_OPERATION
,
353 "glProgramStringARB(rejected by driver");
357 if (ctx
->_Shader
->Flags
& GLSL_DUMP
) {
358 const char *shader_type
=
359 target
== GL_FRAGMENT_PROGRAM_ARB
? "fragment" : "vertex";
361 fprintf(stderr
, "ARB_%s_program source for program %d:\n",
362 shader_type
, base
->Id
);
363 fprintf(stderr
, "%s\n", (const char *) string
);
366 fprintf(stderr
, "ARB_%s_program %d failed to compile.\n",
367 shader_type
, base
->Id
);
369 fprintf(stderr
, "Mesa IR for ARB_%s_program %d:\n",
370 shader_type
, base
->Id
);
371 _mesa_print_program(base
);
372 fprintf(stderr
, "\n");
380 * Set a program env parameter register.
381 * \note Called from the GL API dispatcher.
384 _mesa_ProgramEnvParameter4dARB(GLenum target
, GLuint index
,
385 GLdouble x
, GLdouble y
, GLdouble z
, GLdouble w
)
387 _mesa_ProgramEnvParameter4fARB(target
, index
, (GLfloat
) x
, (GLfloat
) y
,
388 (GLfloat
) z
, (GLfloat
) w
);
393 * Set a program env parameter register.
394 * \note Called from the GL API dispatcher.
397 _mesa_ProgramEnvParameter4dvARB(GLenum target
, GLuint index
,
398 const GLdouble
*params
)
400 _mesa_ProgramEnvParameter4fARB(target
, index
, (GLfloat
) params
[0],
401 (GLfloat
) params
[1], (GLfloat
) params
[2],
402 (GLfloat
) params
[3]);
407 * Set a program env parameter register.
408 * \note Called from the GL API dispatcher.
411 _mesa_ProgramEnvParameter4fARB(GLenum target
, GLuint index
,
412 GLfloat x
, GLfloat y
, GLfloat z
, GLfloat w
)
416 GET_CURRENT_CONTEXT(ctx
);
418 FLUSH_VERTICES(ctx
, _NEW_PROGRAM_CONSTANTS
);
420 if (get_env_param_pointer(ctx
, "glProgramEnvParameter",
421 target
, index
, ¶m
)) {
422 ASSIGN_4V(param
, x
, y
, z
, w
);
429 * Set a program env parameter register.
430 * \note Called from the GL API dispatcher.
433 _mesa_ProgramEnvParameter4fvARB(GLenum target
, GLuint index
,
434 const GLfloat
*params
)
438 GET_CURRENT_CONTEXT(ctx
);
440 FLUSH_VERTICES(ctx
, _NEW_PROGRAM_CONSTANTS
);
442 if (get_env_param_pointer(ctx
, "glProgramEnvParameter4fv",
443 target
, index
, ¶m
)) {
444 memcpy(param
, params
, 4 * sizeof(GLfloat
));
450 _mesa_ProgramEnvParameters4fvEXT(GLenum target
, GLuint index
, GLsizei count
,
451 const GLfloat
*params
)
453 GET_CURRENT_CONTEXT(ctx
);
456 FLUSH_VERTICES(ctx
, _NEW_PROGRAM_CONSTANTS
);
459 _mesa_error(ctx
, GL_INVALID_VALUE
, "glProgramEnvParameters4fv(count)");
462 if (target
== GL_FRAGMENT_PROGRAM_ARB
463 && ctx
->Extensions
.ARB_fragment_program
) {
464 if ((index
+ count
) > ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxEnvParams
) {
465 _mesa_error(ctx
, GL_INVALID_VALUE
, "glProgramEnvParameters4fv(index + count)");
468 dest
= ctx
->FragmentProgram
.Parameters
[index
];
470 else if (target
== GL_VERTEX_PROGRAM_ARB
471 && ctx
->Extensions
.ARB_vertex_program
) {
472 if ((index
+ count
) > ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxEnvParams
) {
473 _mesa_error(ctx
, GL_INVALID_VALUE
, "glProgramEnvParameters4fv(index + count)");
476 dest
= ctx
->VertexProgram
.Parameters
[index
];
479 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramEnvParameters4fv(target)");
483 memcpy(dest
, params
, count
* 4 * sizeof(GLfloat
));
488 _mesa_GetProgramEnvParameterdvARB(GLenum target
, GLuint index
,
491 GET_CURRENT_CONTEXT(ctx
);
494 if (get_env_param_pointer(ctx
, "glGetProgramEnvParameterdv",
495 target
, index
, &fparam
)) {
496 COPY_4V(params
, fparam
);
502 _mesa_GetProgramEnvParameterfvARB(GLenum target
, GLuint index
,
507 GET_CURRENT_CONTEXT(ctx
);
509 if (get_env_param_pointer(ctx
, "glGetProgramEnvParameterfv",
510 target
, index
, ¶m
)) {
511 COPY_4V(params
, param
);
517 _mesa_ProgramLocalParameter4fARB(GLenum target
, GLuint index
,
518 GLfloat x
, GLfloat y
, GLfloat z
, GLfloat w
)
520 GET_CURRENT_CONTEXT(ctx
);
523 FLUSH_VERTICES(ctx
, _NEW_PROGRAM_CONSTANTS
);
525 if (get_local_param_pointer(ctx
, "glProgramLocalParameterARB",
526 target
, index
, ¶m
)) {
527 assert(index
< MAX_PROGRAM_LOCAL_PARAMS
);
528 ASSIGN_4V(param
, x
, y
, z
, w
);
534 _mesa_ProgramLocalParameter4fvARB(GLenum target
, GLuint index
,
535 const GLfloat
*params
)
537 _mesa_ProgramLocalParameter4fARB(target
, index
, params
[0], params
[1],
538 params
[2], params
[3]);
543 _mesa_ProgramLocalParameters4fvEXT(GLenum target
, GLuint index
, GLsizei count
,
544 const GLfloat
*params
)
546 GET_CURRENT_CONTEXT(ctx
);
549 FLUSH_VERTICES(ctx
, _NEW_PROGRAM_CONSTANTS
);
552 _mesa_error(ctx
, GL_INVALID_VALUE
, "glProgramLocalParameters4fv(count)");
555 if (get_local_param_pointer(ctx
, "glProgramLocalParameters4fvEXT",
556 target
, index
, &dest
)) {
557 GLuint maxParams
= target
== GL_FRAGMENT_PROGRAM_ARB
?
558 ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
].MaxLocalParams
:
559 ctx
->Const
.Program
[MESA_SHADER_VERTEX
].MaxLocalParams
;
561 if ((index
+ count
) > maxParams
) {
562 _mesa_error(ctx
, GL_INVALID_VALUE
,
563 "glProgramLocalParameters4fvEXT(index + count)");
567 memcpy(dest
, params
, count
* 4 * sizeof(GLfloat
));
573 _mesa_ProgramLocalParameter4dARB(GLenum target
, GLuint index
,
574 GLdouble x
, GLdouble y
,
575 GLdouble z
, GLdouble w
)
577 _mesa_ProgramLocalParameter4fARB(target
, index
, (GLfloat
) x
, (GLfloat
) y
,
578 (GLfloat
) z
, (GLfloat
) w
);
583 _mesa_ProgramLocalParameter4dvARB(GLenum target
, GLuint index
,
584 const GLdouble
*params
)
586 _mesa_ProgramLocalParameter4fARB(target
, index
,
587 (GLfloat
) params
[0], (GLfloat
) params
[1],
588 (GLfloat
) params
[2], (GLfloat
) params
[3]);
593 _mesa_GetProgramLocalParameterfvARB(GLenum target
, GLuint index
,
597 GET_CURRENT_CONTEXT(ctx
);
599 if (get_local_param_pointer(ctx
, "glProgramLocalParameters4fvEXT",
600 target
, index
, ¶m
)) {
601 COPY_4V(params
, param
);
607 _mesa_GetProgramLocalParameterdvARB(GLenum target
, GLuint index
,
611 GET_CURRENT_CONTEXT(ctx
);
613 if (get_local_param_pointer(ctx
, "glProgramLocalParameters4fvEXT",
614 target
, index
, ¶m
)) {
615 COPY_4V(params
, param
);
621 _mesa_GetProgramivARB(GLenum target
, GLenum pname
, GLint
*params
)
623 const struct gl_program_constants
*limits
;
624 struct gl_program
*prog
;
625 GET_CURRENT_CONTEXT(ctx
);
627 if (target
== GL_VERTEX_PROGRAM_ARB
628 && ctx
->Extensions
.ARB_vertex_program
) {
629 prog
= &(ctx
->VertexProgram
.Current
->Base
);
630 limits
= &ctx
->Const
.Program
[MESA_SHADER_VERTEX
];
632 else if (target
== GL_FRAGMENT_PROGRAM_ARB
633 && ctx
->Extensions
.ARB_fragment_program
) {
634 prog
= &(ctx
->FragmentProgram
.Current
->Base
);
635 limits
= &ctx
->Const
.Program
[MESA_SHADER_FRAGMENT
];
638 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetProgramivARB(target)");
645 /* Queries supported for both vertex and fragment programs */
647 case GL_PROGRAM_LENGTH_ARB
:
649 = prog
->String
? (GLint
) strlen((char *) prog
->String
) : 0;
651 case GL_PROGRAM_FORMAT_ARB
:
652 *params
= prog
->Format
;
654 case GL_PROGRAM_BINDING_ARB
:
657 case GL_PROGRAM_INSTRUCTIONS_ARB
:
658 *params
= prog
->NumInstructions
;
660 case GL_MAX_PROGRAM_INSTRUCTIONS_ARB
:
661 *params
= limits
->MaxInstructions
;
663 case GL_PROGRAM_NATIVE_INSTRUCTIONS_ARB
:
664 *params
= prog
->NumNativeInstructions
;
666 case GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB
:
667 *params
= limits
->MaxNativeInstructions
;
669 case GL_PROGRAM_TEMPORARIES_ARB
:
670 *params
= prog
->NumTemporaries
;
672 case GL_MAX_PROGRAM_TEMPORARIES_ARB
:
673 *params
= limits
->MaxTemps
;
675 case GL_PROGRAM_NATIVE_TEMPORARIES_ARB
:
676 *params
= prog
->NumNativeTemporaries
;
678 case GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB
:
679 *params
= limits
->MaxNativeTemps
;
681 case GL_PROGRAM_PARAMETERS_ARB
:
682 *params
= prog
->NumParameters
;
684 case GL_MAX_PROGRAM_PARAMETERS_ARB
:
685 *params
= limits
->MaxParameters
;
687 case GL_PROGRAM_NATIVE_PARAMETERS_ARB
:
688 *params
= prog
->NumNativeParameters
;
690 case GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB
:
691 *params
= limits
->MaxNativeParameters
;
693 case GL_PROGRAM_ATTRIBS_ARB
:
694 *params
= prog
->NumAttributes
;
696 case GL_MAX_PROGRAM_ATTRIBS_ARB
:
697 *params
= limits
->MaxAttribs
;
699 case GL_PROGRAM_NATIVE_ATTRIBS_ARB
:
700 *params
= prog
->NumNativeAttributes
;
702 case GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB
:
703 *params
= limits
->MaxNativeAttribs
;
705 case GL_PROGRAM_ADDRESS_REGISTERS_ARB
:
706 *params
= prog
->NumAddressRegs
;
708 case GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB
:
709 *params
= limits
->MaxAddressRegs
;
711 case GL_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB
:
712 *params
= prog
->NumNativeAddressRegs
;
714 case GL_MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB
:
715 *params
= limits
->MaxNativeAddressRegs
;
717 case GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB
:
718 *params
= limits
->MaxLocalParams
;
720 case GL_MAX_PROGRAM_ENV_PARAMETERS_ARB
:
721 *params
= limits
->MaxEnvParams
;
723 case GL_PROGRAM_UNDER_NATIVE_LIMITS_ARB
:
725 * XXX we may not really need a driver callback here.
726 * If the number of native instructions, registers, etc. used
727 * are all below the maximums, we could return true.
728 * The spec says that even if this query returns true, there's
729 * no guarantee that the program will run in hardware.
732 /* default/null program */
735 else if (ctx
->Driver
.IsProgramNative
) {
737 *params
= ctx
->Driver
.IsProgramNative( ctx
, target
, prog
);
740 /* probably running in software */
745 /* continue with fragment-program only queries below */
750 * The following apply to fragment programs only (at this time)
752 if (target
== GL_FRAGMENT_PROGRAM_ARB
) {
753 const struct gl_fragment_program
*fp
= ctx
->FragmentProgram
.Current
;
755 case GL_PROGRAM_ALU_INSTRUCTIONS_ARB
:
756 *params
= fp
->Base
.NumNativeAluInstructions
;
758 case GL_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB
:
759 *params
= fp
->Base
.NumAluInstructions
;
761 case GL_PROGRAM_TEX_INSTRUCTIONS_ARB
:
762 *params
= fp
->Base
.NumTexInstructions
;
764 case GL_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB
:
765 *params
= fp
->Base
.NumNativeTexInstructions
;
767 case GL_PROGRAM_TEX_INDIRECTIONS_ARB
:
768 *params
= fp
->Base
.NumTexIndirections
;
770 case GL_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB
:
771 *params
= fp
->Base
.NumNativeTexIndirections
;
773 case GL_MAX_PROGRAM_ALU_INSTRUCTIONS_ARB
:
774 *params
= limits
->MaxAluInstructions
;
776 case GL_MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB
:
777 *params
= limits
->MaxNativeAluInstructions
;
779 case GL_MAX_PROGRAM_TEX_INSTRUCTIONS_ARB
:
780 *params
= limits
->MaxTexInstructions
;
782 case GL_MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB
:
783 *params
= limits
->MaxNativeTexInstructions
;
785 case GL_MAX_PROGRAM_TEX_INDIRECTIONS_ARB
:
786 *params
= limits
->MaxTexIndirections
;
788 case GL_MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB
:
789 *params
= limits
->MaxNativeTexIndirections
;
792 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetProgramivARB(pname)");
796 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetProgramivARB(pname)");
803 _mesa_GetProgramStringARB(GLenum target
, GLenum pname
, GLvoid
*string
)
805 const struct gl_program
*prog
;
806 char *dst
= (char *) string
;
807 GET_CURRENT_CONTEXT(ctx
);
809 if (target
== GL_VERTEX_PROGRAM_ARB
) {
810 prog
= &(ctx
->VertexProgram
.Current
->Base
);
812 else if (target
== GL_FRAGMENT_PROGRAM_ARB
) {
813 prog
= &(ctx
->FragmentProgram
.Current
->Base
);
816 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetProgramStringARB(target)");
822 if (pname
!= GL_PROGRAM_STRING_ARB
) {
823 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetProgramStringARB(pname)");
828 memcpy(dst
, prog
->String
, strlen((char *) prog
->String
));