2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2003 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.
27 * Vertex and fragment program support functions.
39 #include "nvfragparse.h"
40 #include "nvfragprog.h"
41 #include "nvvertparse.h"
44 /**********************************************************************/
45 /* Utility functions */
46 /**********************************************************************/
50 * Init context's program state
53 _mesa_init_program(GLcontext
*ctx
)
57 ctx
->Program
.ErrorPos
= -1;
58 ctx
->Program
.ErrorString
= _mesa_strdup("");
60 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
61 ctx
->VertexProgram
.Enabled
= GL_FALSE
;
62 ctx
->VertexProgram
.PointSizeEnabled
= GL_FALSE
;
63 ctx
->VertexProgram
.TwoSideEnabled
= GL_FALSE
;
64 ctx
->VertexProgram
.Current
= NULL
;
65 ctx
->VertexProgram
.Current
= (struct vertex_program
*) ctx
->Shared
->DefaultVertexProgram
;
66 assert(ctx
->VertexProgram
.Current
);
67 ctx
->VertexProgram
.Current
->Base
.RefCount
++;
68 for (i
= 0; i
< MAX_NV_VERTEX_PROGRAM_PARAMS
/ 4; i
++) {
69 ctx
->VertexProgram
.TrackMatrix
[i
] = GL_NONE
;
70 ctx
->VertexProgram
.TrackMatrixTransform
[i
] = GL_IDENTITY_NV
;
74 #if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program
75 ctx
->FragmentProgram
.Enabled
= GL_FALSE
;
76 ctx
->FragmentProgram
.Current
= (struct fragment_program
*) ctx
->Shared
->DefaultFragmentProgram
;
77 assert(ctx
->FragmentProgram
.Current
);
78 ctx
->FragmentProgram
.Current
->Base
.RefCount
++;
84 * Set the vertex/fragment program error state (position and error string).
85 * This is generally called from within the parsers.
88 _mesa_set_program_error(GLcontext
*ctx
, GLint pos
, const char *string
)
90 ctx
->Program
.ErrorPos
= pos
;
91 _mesa_free((void *) ctx
->Program
.ErrorString
);
94 ctx
->Program
.ErrorString
= _mesa_strdup(string
);
99 * Find the line number and column for 'pos' within 'string'.
100 * Return a copy of the line which contains 'pos'. Free the line with
102 * \param string the program string
103 * \param pos the position within the string
104 * \param line returns the line number corresponding to 'pos'.
105 * \param col returns the column number corresponding to 'pos'.
106 * \return copy of the line containing 'pos'.
109 _mesa_find_line_column(const GLubyte
*string
, const GLubyte
*pos
,
110 GLint
*line
, GLint
*col
)
112 const GLubyte
*lineStart
= string
;
113 const GLubyte
*p
= string
;
120 if (*p
== (GLubyte
) '\n') {
127 *col
= (pos
- lineStart
) + 1;
129 /* return copy of this line */
130 while (*p
!= 0 && *p
!= '\n')
133 s
= (GLubyte
*) _mesa_malloc(len
+ 1);
134 _mesa_memcpy(s
, lineStart
, len
);
143 * Allocate and initialize a new fragment/vertex program object
145 * \param id program id/number
146 * \param target program target/type
147 * \return pointer to new program object
150 _mesa_alloc_program(GLcontext
*ctx
, GLenum target
, GLuint id
)
152 struct program
*prog
;
154 if (target
== GL_VERTEX_PROGRAM_NV
155 || target
== GL_VERTEX_PROGRAM_ARB
) {
156 struct vertex_program
*vprog
= CALLOC_STRUCT(vertex_program
);
160 prog
= &(vprog
->Base
);
162 else if (target
== GL_FRAGMENT_PROGRAM_NV
163 || target
== GL_FRAGMENT_PROGRAM_ARB
) {
164 struct fragment_program
*fprog
= CALLOC_STRUCT(fragment_program
);
168 prog
= &(fprog
->Base
);
171 _mesa_problem(ctx
, "bad target in _mesa_alloc_program");
175 prog
->Target
= target
;
176 prog
->Resident
= GL_TRUE
;
183 * Delete a program and remove it from the hash table, ignoring the
185 * \note Called from the GL API dispatcher.
188 _mesa_delete_program(GLcontext
*ctx
, struct program
*prog
)
193 _mesa_free(prog
->String
);
194 if (prog
->Target
== GL_VERTEX_PROGRAM_NV
||
195 prog
->Target
== GL_VERTEX_STATE_PROGRAM_NV
) {
196 struct vertex_program
*vprog
= (struct vertex_program
*) prog
;
197 if (vprog
->Instructions
)
198 _mesa_free(vprog
->Instructions
);
200 else if (prog
->Target
== GL_FRAGMENT_PROGRAM_NV
) {
201 struct fragment_program
*fprog
= (struct fragment_program
*) prog
;
202 if (fprog
->Instructions
)
203 _mesa_free(fprog
->Instructions
);
204 if (fprog
->Parameters
) {
205 _mesa_free_parameter_list(fprog
->Parameters
);
213 /**********************************************************************/
214 /* Program parameter functions */
215 /**********************************************************************/
217 struct program_parameter_list
*
218 _mesa_new_parameter_list(void)
220 return (struct program_parameter_list
*)
221 _mesa_calloc(sizeof(struct program_parameter_list
));
226 * Free a parameter list and all its parameters
229 _mesa_free_parameter_list(struct program_parameter_list
*paramList
)
231 _mesa_free_parameters(paramList
);
232 _mesa_free(paramList
);
237 * Free all the parameters in the given list, but don't free the
238 * paramList structure itself.
241 _mesa_free_parameters(struct program_parameter_list
*paramList
)
244 for (i
= 0; i
< paramList
->NumParameters
; i
++) {
245 _mesa_free((void *) paramList
->Parameters
[i
].Name
);
247 _mesa_free(paramList
->Parameters
);
248 paramList
->NumParameters
= 0;
249 paramList
->Parameters
= NULL
;
254 * Helper function used by the functions below.
257 add_parameter(struct program_parameter_list
*paramList
,
258 const char *name
, const GLfloat values
[4],
259 enum parameter_type type
)
261 const GLuint n
= paramList
->NumParameters
;
263 paramList
->Parameters
= _mesa_realloc(paramList
->Parameters
,
264 n
* sizeof(struct program_parameter
),
265 (n
+ 1) * sizeof(struct program_parameter
));
266 if (!paramList
->Parameters
) {
268 paramList
->NumParameters
= 0;
272 paramList
->NumParameters
= n
+ 1;
273 paramList
->Parameters
[n
].Name
= _mesa_strdup(name
);
274 paramList
->Parameters
[n
].Type
= type
;
276 COPY_4V(paramList
->Parameters
[n
].Values
, values
);
283 * Add a new named program parameter (Ex: NV_fragment_program DEFINE statement)
284 * \return index of the new entry in the parameter list
287 _mesa_add_named_parameter(struct program_parameter_list
*paramList
,
288 const char *name
, const GLfloat values
[4])
290 return add_parameter(paramList
, name
, values
, NAMED_PARAMETER
);
295 * Add a new unnamed constant to the parameter list.
296 * \param paramList - the parameter list
297 * \param values - four float values
298 * \return index of the new parameter.
301 _mesa_add_named_constant(struct program_parameter_list
*paramList
,
302 const char *name
, const GLfloat values
[4])
304 return add_parameter(paramList
, name
, values
, CONSTANT
);
309 * Add a new unnamed constant to the parameter list.
310 * \param paramList - the parameter list
311 * \param values - four float values
312 * \return index of the new parameter.
315 _mesa_add_unnamed_constant(struct program_parameter_list
*paramList
,
316 const GLfloat values
[4])
318 /* generate a new dummy name */
321 _mesa_sprintf(name
, "constant%d", n
);
324 return add_parameter(paramList
, name
, values
, CONSTANT
);
329 * Add a new state reference to the parameter list.
330 * \param paramList - the parameter list
331 * \param values - four float values
332 * \return index of the new parameter.
335 _mesa_add_state_reference(struct program_parameter_list
*paramList
,
336 const char *stateString
)
338 /* XXX Should we parse <stateString> here and produce the parameter's
339 * list of STATE_* tokens here, or in the parser?
341 return add_parameter(paramList
, stateString
, NULL
, STATE
);
346 * Lookup a parameter value by name in the given parameter list.
347 * \return pointer to the float[4] values.
350 _mesa_lookup_parameter_value(struct program_parameter_list
*paramList
,
351 GLsizei nameLen
, const char *name
)
356 /* name is null-terminated */
357 for (i
= 0; i
< paramList
->NumParameters
; i
++) {
358 if (_mesa_strcmp(paramList
->Parameters
[i
].Name
, name
) == 0)
359 return paramList
->Parameters
[i
].Values
;
363 /* name is not null-terminated, use nameLen */
364 for (i
= 0; i
< paramList
->NumParameters
; i
++) {
365 if (_mesa_strncmp(paramList
->Parameters
[i
].Name
, name
, nameLen
) == 0
366 && _mesa_strlen(paramList
->Parameters
[i
].Name
) == (size_t)nameLen
)
367 return paramList
->Parameters
[i
].Values
;
375 * Lookup a parameter index by name in the given parameter list.
376 * \return index of parameter in the list.
379 _mesa_lookup_parameter_index(struct program_parameter_list
*paramList
,
380 GLsizei nameLen
, const char *name
)
385 /* name is null-terminated */
386 for (i
= 0; i
< (GLint
) paramList
->NumParameters
; i
++) {
387 if (_mesa_strcmp(paramList
->Parameters
[i
].Name
, name
) == 0)
392 /* name is not null-terminated, use nameLen */
393 for (i
= 0; i
< (GLint
) paramList
->NumParameters
; i
++) {
394 if (_mesa_strncmp(paramList
->Parameters
[i
].Name
, name
, nameLen
) == 0
395 && _mesa_strlen(paramList
->Parameters
[i
].Name
) == (size_t)nameLen
)
404 * Use the list of tokens in the state[] array to find global GL state
405 * and return it in <value>. Usually, four values are returned in <value>
406 * but matrix queries may return as many as 16 values.
407 * This function is used for ARB vertex/fragment programs.
408 * The program parser will produce the state[] values.
411 _mesa_fetch_state(GLcontext
*ctx
, const enum state_index state
[],
417 /* state[1] is either 0=front or 1=back side */
418 const GLuint face
= (GLuint
) state
[1];
419 /* state[2] is the material attribute */
423 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_AMBIENT
]);
425 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_AMBIENT
]);
429 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_DIFFUSE
]);
431 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_DIFFUSE
]);
435 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_SPECULAR
]);
437 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_SPECULAR
]);
441 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_EMISSION
]);
443 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_EMISSION
]);
445 case STATE_SHININESS
:
447 value
[0] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_SHININESS
][0];
449 value
[0] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_SHININESS
][0];
455 _mesa_problem(ctx
, "Invalid material state in fetch_state");
462 /* state[1] is the light number */
463 const GLuint ln
= (GLuint
) state
[1];
464 /* state[2] is the light attribute */
467 COPY_4V(value
, ctx
->Light
.Light
[ln
].Ambient
);
470 COPY_4V(value
, ctx
->Light
.Light
[ln
].Diffuse
);
473 COPY_4V(value
, ctx
->Light
.Light
[ln
].Specular
);
476 COPY_4V(value
, ctx
->Light
.Light
[ln
].EyePosition
);
478 case STATE_ATTENUATION
:
479 value
[0] = ctx
->Light
.Light
[ln
].ConstantAttenuation
;
480 value
[1] = ctx
->Light
.Light
[ln
].LinearAttenuation
;
481 value
[2] = ctx
->Light
.Light
[ln
].QuadraticAttenuation
;
482 value
[3] = ctx
->Light
.Light
[ln
].SpotExponent
;
484 case STATE_SPOT_DIRECTION
:
485 COPY_4V(value
, ctx
->Light
.Light
[ln
].EyeDirection
);
488 _mesa_problem(ctx
, "Invalid light state in fetch_state");
493 case STATE_LIGHTMODEL_AMBIENT
:
494 COPY_4V(value
, ctx
->Light
.Model
.Ambient
);
496 case STATE_LIGHTMODEL_SCENECOLOR
:
500 for (i
= 0; i
< 4; i
++) {
501 value
[i
] = ctx
->Light
.Model
.Ambient
[i
]
502 * ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_AMBIENT
][i
]
503 + ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_EMISSION
][i
];
509 for (i
= 0; i
< 4; i
++) {
510 value
[i
] = ctx
->Light
.Model
.Ambient
[i
]
511 * ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_AMBIENT
][i
]
512 + ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_EMISSION
][i
];
516 case STATE_LIGHTPROD
:
518 const GLuint ln
= (GLuint
) state
[1];
519 const GLuint face
= (GLuint
) state
[2];
521 ASSERT(face
== 0 || face
== 1);
524 for (i
= 0; i
< 3; i
++) {
525 value
[i
] = ctx
->Light
.Light
[ln
].Ambient
[i
] *
526 ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_AMBIENT
+face
][i
];
528 /* [3] = material alpha */
529 value
[3] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_DIFFUSE
+face
][3];
532 for (i
= 0; i
< 3; i
++) {
533 value
[i
] = ctx
->Light
.Light
[ln
].Diffuse
[i
] *
534 ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_DIFFUSE
+face
][i
];
536 /* [3] = material alpha */
537 value
[3] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_DIFFUSE
+face
][3];
540 for (i
= 0; i
< 3; i
++) {
541 value
[i
] = ctx
->Light
.Light
[ln
].Specular
[i
] *
542 ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_SPECULAR
+face
][i
];
544 /* [3] = material alpha */
545 value
[3] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_DIFFUSE
+face
][3];
548 _mesa_problem(ctx
, "Invalid lightprod state in fetch_state");
555 /* state[1] is the texture unit */
556 const GLuint unit
= (GLuint
) state
[1];
557 /* state[2] is the texgen attribute */
559 case STATE_TEXGEN_EYE_S
:
560 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].EyePlaneS
);
562 case STATE_TEXGEN_EYE_T
:
563 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].EyePlaneT
);
565 case STATE_TEXGEN_EYE_R
:
566 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].EyePlaneR
);
568 case STATE_TEXGEN_EYE_Q
:
569 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].EyePlaneQ
);
571 case STATE_TEXGEN_OBJECT_S
:
572 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].ObjectPlaneS
);
574 case STATE_TEXGEN_OBJECT_T
:
575 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].ObjectPlaneT
);
577 case STATE_TEXGEN_OBJECT_R
:
578 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].ObjectPlaneR
);
580 case STATE_TEXGEN_OBJECT_Q
:
581 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].ObjectPlaneQ
);
584 _mesa_problem(ctx
, "Invalid texgen state in fetch_state");
589 case STATE_FOG_COLOR
:
590 COPY_4V(value
, ctx
->Fog
.Color
);
592 case STATE_FOG_PARAMS
:
593 value
[0] = ctx
->Fog
.Density
;
594 value
[1] = ctx
->Fog
.Start
;
595 value
[2] = ctx
->Fog
.End
;
596 value
[3] = 1.0F
/ (ctx
->Fog
.End
- ctx
->Fog
.Start
);
598 case STATE_CLIPPLANE
:
600 const GLuint plane
= (GLuint
) state
[1];
601 COPY_4V(value
, ctx
->Transform
.EyeUserPlane
[plane
]);
604 case STATE_POINT_SIZE
:
605 value
[0] = ctx
->Point
.Size
;
606 value
[1] = ctx
->Point
.MinSize
;
607 value
[2] = ctx
->Point
.MaxSize
;
608 value
[3] = ctx
->Point
.Threshold
;
610 case STATE_POINT_ATTENUATION
:
611 value
[0] = ctx
->Point
.Params
[0];
612 value
[1] = ctx
->Point
.Params
[1];
613 value
[2] = ctx
->Point
.Params
[2];
618 /* state[1] = modelview, projection, texture, etc. */
619 /* state[2] = which texture matrix or program matrix */
620 /* state[3] = first column to fetch */
621 /* state[4] = last column to fetch */
622 /* state[5] = transpose, inverse or invtrans */
624 const GLmatrix
*matrix
;
625 const enum state_index mat
= state
[1];
626 const GLuint index
= (GLuint
) state
[2];
627 const GLuint first
= (GLuint
) state
[3];
628 const GLuint last
= (GLuint
) state
[4];
629 const enum state_index modifier
= state
[5];
632 if (mat
== STATE_MODELVIEW
) {
633 matrix
= ctx
->ModelviewMatrixStack
.Top
;
635 else if (mat
== STATE_PROJECTION
) {
636 matrix
= ctx
->ProjectionMatrixStack
.Top
;
638 else if (mat
== STATE_MVP
) {
639 matrix
= &ctx
->_ModelProjectMatrix
;
641 else if (mat
== STATE_TEXTURE
) {
642 matrix
= ctx
->TextureMatrixStack
[index
].Top
;
644 else if (mat
== STATE_PROGRAM
) {
645 matrix
= ctx
->ProgramMatrixStack
[index
].Top
;
648 _mesa_problem(ctx
, "Bad matrix name in _mesa_fetch_state()");
651 if (modifier
== STATE_MATRIX_INVERSE
||
652 modifier
== STATE_MATRIX_INVTRANS
) {
653 /* XXX be sure inverse is up to date */
659 if (modifier
== STATE_MATRIX_TRANSPOSE
||
660 modifier
== STATE_MATRIX_INVTRANS
) {
661 for (i
= 0, row
= first
; row
<= last
; row
++) {
662 value
[i
++] = m
[row
* 4 + 0];
663 value
[i
++] = m
[row
* 4 + 1];
664 value
[i
++] = m
[row
* 4 + 2];
665 value
[i
++] = m
[row
* 4 + 3];
669 for (i
= 0, row
= first
; row
<= last
; row
++) {
670 value
[i
++] = m
[row
+ 0];
671 value
[i
++] = m
[row
+ 4];
672 value
[i
++] = m
[row
+ 8];
673 value
[i
++] = m
[row
+ 12];
679 _mesa_problem(ctx
, "Invalid state in fetch_state");
686 * Loop over all the parameters in a parameter list. If the parameter
687 * is a GL state reference, look up the current value of that state
688 * variable and put it into the parameter's Value[4] array.
689 * This would be called at glBegin time when using a fragment program.
692 _mesa_load_state_parameters(GLcontext
*ctx
,
693 struct program_parameter_list
*paramList
)
696 for (i
= 0; i
< paramList
->NumParameters
; i
++) {
697 if (paramList
->Parameters
[i
].Type
== STATE
) {
698 _mesa_fetch_state(ctx
, paramList
->Parameters
[i
].StateIndexes
,
699 paramList
->Parameters
[i
].Values
);
706 /**********************************************************************/
708 /**********************************************************************/
712 * Bind a program (make it current)
713 * \note Called from the GL API dispatcher by both glBindProgramNV
714 * and glBindProgramARB.
717 _mesa_BindProgram(GLenum target
, GLuint id
)
719 struct program
*prog
;
720 GET_CURRENT_CONTEXT(ctx
);
721 ASSERT_OUTSIDE_BEGIN_END(ctx
);
723 if ((target
== GL_VERTEX_PROGRAM_NV
724 && ctx
->Extensions
.NV_vertex_program
) ||
725 (target
== GL_VERTEX_PROGRAM_ARB
726 && ctx
->Extensions
.ARB_vertex_program
)) {
727 if (ctx
->VertexProgram
.Current
&&
728 ctx
->VertexProgram
.Current
->Base
.Id
== id
)
730 /* decrement refcount on previously bound vertex program */
731 if (ctx
->VertexProgram
.Current
) {
732 ctx
->VertexProgram
.Current
->Base
.RefCount
--;
733 /* and delete if refcount goes below one */
734 if (ctx
->VertexProgram
.Current
->Base
.RefCount
<= 0) {
735 _mesa_delete_program(ctx
, &(ctx
->VertexProgram
.Current
->Base
));
736 _mesa_HashRemove(ctx
->Shared
->Programs
, id
);
740 else if ((target
== GL_FRAGMENT_PROGRAM_NV
741 && ctx
->Extensions
.NV_fragment_program
) ||
742 (target
== GL_FRAGMENT_PROGRAM_ARB
743 && ctx
->Extensions
.ARB_fragment_program
)) {
744 if (ctx
->FragmentProgram
.Current
&&
745 ctx
->FragmentProgram
.Current
->Base
.Id
== id
)
747 /* decrement refcount on previously bound fragment program */
748 if (ctx
->FragmentProgram
.Current
) {
749 ctx
->FragmentProgram
.Current
->Base
.RefCount
--;
750 /* and delete if refcount goes below one */
751 if (ctx
->FragmentProgram
.Current
->Base
.RefCount
<= 0) {
752 _mesa_delete_program(ctx
, &(ctx
->FragmentProgram
.Current
->Base
));
753 _mesa_HashRemove(ctx
->Shared
->Programs
, id
);
758 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindProgramNV/ARB(target)");
762 /* NOTE: binding to a non-existant program is not an error.
763 * That's supposed to be caught in glBegin.
766 /* default program */
768 if (target
== GL_VERTEX_PROGRAM_NV
|| target
== GL_VERTEX_PROGRAM_ARB
)
769 prog
= ctx
->Shared
->DefaultVertexProgram
;
771 prog
= ctx
->Shared
->DefaultFragmentProgram
;
774 prog
= (struct program
*) _mesa_HashLookup(ctx
->Shared
->Programs
, id
);
776 if (prog
->Target
== 0) {
777 /* prog was allocated with glGenProgramsNV */
778 prog
->Target
= target
;
780 else if (prog
->Target
!= target
) {
781 _mesa_error(ctx
, GL_INVALID_OPERATION
,
782 "glBindProgramNV/ARB(target mismatch)");
787 /* allocate a new program now */
788 prog
= _mesa_alloc_program(ctx
, target
, id
);
790 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindProgramNV/ARB");
794 prog
->Target
= target
;
795 prog
->Resident
= GL_TRUE
;
797 _mesa_HashInsert(ctx
->Shared
->Programs
, id
, prog
);
802 if (target
== GL_VERTEX_PROGRAM_NV
|| target
== GL_VERTEX_PROGRAM_ARB
) {
803 ctx
->VertexProgram
.Current
= (struct vertex_program
*) prog
;
805 else if (target
== GL_FRAGMENT_PROGRAM_NV
|| target
== GL_FRAGMENT_PROGRAM_ARB
) {
806 ctx
->FragmentProgram
.Current
= (struct fragment_program
*) prog
;
815 * Delete a list of programs.
816 * \note Not compiled into display lists.
817 * \note Called by both glDeleteProgramsNV and glDeleteProgramsARB.
820 _mesa_DeletePrograms(GLsizei n
, const GLuint
*ids
)
823 GET_CURRENT_CONTEXT(ctx
);
824 ASSERT_OUTSIDE_BEGIN_END(ctx
);
827 _mesa_error( ctx
, GL_INVALID_VALUE
, "glDeleteProgramsNV" );
831 for (i
= 0; i
< n
; i
++) {
833 struct program
*prog
= (struct program
*)
834 _mesa_HashLookup(ctx
->Shared
->Programs
, ids
[i
]);
836 if (prog
->Target
== GL_VERTEX_PROGRAM_NV
||
837 prog
->Target
== GL_VERTEX_STATE_PROGRAM_NV
) {
838 if (ctx
->VertexProgram
.Current
&&
839 ctx
->VertexProgram
.Current
->Base
.Id
== ids
[i
]) {
840 /* unbind this currently bound program */
841 _mesa_BindProgram(prog
->Target
, 0);
844 else if (prog
->Target
== GL_FRAGMENT_PROGRAM_NV
) {
845 if (ctx
->FragmentProgram
.Current
&&
846 ctx
->FragmentProgram
.Current
->Base
.Id
== ids
[i
]) {
847 /* unbind this currently bound program */
848 _mesa_BindProgram(prog
->Target
, 0);
852 _mesa_problem(ctx
, "bad target in glDeleteProgramsNV");
856 if (prog
->RefCount
<= 0) {
857 _mesa_delete_program(ctx
, prog
);
866 * Generate a list of new program identifiers.
867 * \note Not compiled into display lists.
868 * \note Called by both glGenProgramsNV and glGenProgramsARB.
871 _mesa_GenPrograms(GLsizei n
, GLuint
*ids
)
875 GET_CURRENT_CONTEXT(ctx
);
876 ASSERT_OUTSIDE_BEGIN_END(ctx
);
879 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenPrograms");
886 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->Programs
, n
);
888 for (i
= 0; i
< (GLuint
) n
; i
++) {
889 const int bytes
= MAX2(sizeof(struct vertex_program
),
890 sizeof(struct fragment_program
));
891 struct program
*prog
= (struct program
*) _mesa_calloc(bytes
);
893 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glGenPrograms");
897 prog
->Id
= first
+ i
;
898 _mesa_HashInsert(ctx
->Shared
->Programs
, first
+ i
, prog
);
901 /* Return the program names */
902 for (i
= 0; i
< (GLuint
) n
; i
++) {
909 * Determine if id names a program.
910 * \note Not compiled into display lists.
911 * \note Called from both glIsProgramNV and glIsProgramARB.
912 * \param id is the program identifier
913 * \return GL_TRUE if id is a program, else GL_FALSE.
916 _mesa_IsProgram(GLuint id
)
918 struct program
*prog
;
919 GET_CURRENT_CONTEXT(ctx
);
920 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
925 prog
= (struct program
*) _mesa_HashLookup(ctx
->Shared
->Programs
, id
);
926 if (prog
&& prog
->Target
)
934 /**********************************************************************/
935 /* GL_MESA_program_debug extension */
936 /**********************************************************************/
941 glProgramCallbackMESA(GLenum target
, GLprogramcallbackMESA callback
,
944 _mesa_ProgramCallbackMESA(target
, callback
, data
);
949 _mesa_ProgramCallbackMESA(GLenum target
, GLprogramcallbackMESA callback
,
952 GET_CURRENT_CONTEXT(ctx
);
955 case GL_FRAGMENT_PROGRAM_ARB
:
956 if (!ctx
->Extensions
.ARB_fragment_program
) {
957 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramCallbackMESA(target)");
960 ctx
->FragmentProgram
.Callback
= callback
;
961 ctx
->FragmentProgram
.CallbackData
= data
;
963 case GL_FRAGMENT_PROGRAM_NV
:
964 if (!ctx
->Extensions
.NV_fragment_program
) {
965 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramCallbackMESA(target)");
968 ctx
->FragmentProgram
.Callback
= callback
;
969 ctx
->FragmentProgram
.CallbackData
= data
;
971 case GL_VERTEX_PROGRAM_ARB
: /* == GL_VERTEX_PROGRAM_NV */
972 if (!ctx
->Extensions
.ARB_vertex_program
&&
973 !ctx
->Extensions
.NV_vertex_program
) {
974 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramCallbackMESA(target)");
977 ctx
->VertexProgram
.Callback
= callback
;
978 ctx
->VertexProgram
.CallbackData
= data
;
981 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramCallbackMESA(target)");
989 glGetProgramRegisterfvMESA(GLenum target
,
990 GLsizei len
, const GLubyte
*registerName
,
993 _mesa_GetProgramRegisterfvMESA(target
, len
, registerName
, v
);
998 _mesa_GetProgramRegisterfvMESA(GLenum target
,
999 GLsizei len
, const GLubyte
*registerName
,
1003 GET_CURRENT_CONTEXT(ctx
);
1005 /* We _should_ be inside glBegin/glEnd */
1007 if (ctx
->Driver
.CurrentExecPrimitive
== PRIM_OUTSIDE_BEGIN_END
) {
1008 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetProgramRegisterfvMESA");
1013 /* make null-terminated copy of registerName */
1014 len
= MIN2(len
, sizeof(reg
) - 1);
1015 _mesa_memcpy(reg
, registerName
, len
);
1019 case GL_VERTEX_PROGRAM_NV
:
1020 if (!ctx
->Extensions
.ARB_vertex_program
&&
1021 !ctx
->Extensions
.NV_vertex_program
) {
1022 _mesa_error(ctx
, GL_INVALID_ENUM
,
1023 "glGetProgramRegisterfvMESA(target)");
1026 if (!ctx
->VertexProgram
.Enabled
) {
1027 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1028 "glGetProgramRegisterfvMESA");
1031 /* GL_NV_vertex_program */
1032 if (reg
[0] == 'R') {
1034 GLint i
= _mesa_atoi(reg
+ 1);
1035 if (i
>= (GLint
)ctx
->Const
.MaxVertexProgramTemps
) {
1036 _mesa_error(ctx
, GL_INVALID_VALUE
,
1037 "glGetProgramRegisterfvMESA(registerName)");
1040 COPY_4V(v
, ctx
->VertexProgram
.Temporaries
[i
]);
1042 else if (reg
[0] == 'v' && reg
[1] == '[') {
1043 /* Vertex Input attribute */
1045 for (i
= 0; i
< ctx
->Const
.MaxVertexProgramAttribs
; i
++) {
1046 const char *name
= _mesa_nv_vertex_input_register_name(i
);
1048 sprintf(number
, "%d", i
);
1049 if (_mesa_strncmp(reg
+ 2, name
, 4) == 0 ||
1050 _mesa_strncmp(reg
+ 2, number
, _mesa_strlen(number
)) == 0) {
1051 COPY_4V(v
, ctx
->VertexProgram
.Inputs
[i
]);
1055 _mesa_error(ctx
, GL_INVALID_VALUE
,
1056 "glGetProgramRegisterfvMESA(registerName)");
1059 else if (reg
[0] == 'o' && reg
[1] == '[') {
1060 /* Vertex output attribute */
1062 /* GL_ARB_vertex_program */
1063 else if (_mesa_strncmp(reg
, "vertex.", 7) == 0) {
1067 _mesa_error(ctx
, GL_INVALID_VALUE
,
1068 "glGetProgramRegisterfvMESA(registerName)");
1072 case GL_FRAGMENT_PROGRAM_ARB
:
1073 if (!ctx
->Extensions
.ARB_fragment_program
) {
1074 _mesa_error(ctx
, GL_INVALID_ENUM
,
1075 "glGetProgramRegisterfvMESA(target)");
1078 if (!ctx
->FragmentProgram
.Enabled
) {
1079 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1080 "glGetProgramRegisterfvMESA");
1085 case GL_FRAGMENT_PROGRAM_NV
:
1086 if (!ctx
->Extensions
.NV_fragment_program
) {
1087 _mesa_error(ctx
, GL_INVALID_ENUM
,
1088 "glGetProgramRegisterfvMESA(target)");
1091 if (!ctx
->FragmentProgram
.Enabled
) {
1092 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1093 "glGetProgramRegisterfvMESA");
1096 if (reg
[0] == 'R') {
1098 GLint i
= _mesa_atoi(reg
+ 1);
1099 if (i
>= (GLint
)ctx
->Const
.MaxFragmentProgramTemps
) {
1100 _mesa_error(ctx
, GL_INVALID_VALUE
,
1101 "glGetProgramRegisterfvMESA(registerName)");
1104 COPY_4V(v
, ctx
->FragmentProgram
.Machine
.Temporaries
[i
]);
1106 else if (reg
[0] == 'f' && reg
[1] == '[') {
1107 /* Fragment input attribute */
1109 for (i
= 0; i
< ctx
->Const
.MaxFragmentProgramAttribs
; i
++) {
1110 const char *name
= _mesa_nv_fragment_input_register_name(i
);
1111 if (_mesa_strncmp(reg
+ 2, name
, 4) == 0) {
1112 COPY_4V(v
, ctx
->FragmentProgram
.Machine
.Inputs
[i
]);
1116 _mesa_error(ctx
, GL_INVALID_VALUE
,
1117 "glGetProgramRegisterfvMESA(registerName)");
1120 else if (_mesa_strcmp(reg
, "o[COLR]") == 0) {
1121 /* Fragment output color */
1122 COPY_4V(v
, ctx
->FragmentProgram
.Machine
.Outputs
[FRAG_OUTPUT_COLR
]);
1124 else if (_mesa_strcmp(reg
, "o[COLH]") == 0) {
1125 /* Fragment output color */
1126 COPY_4V(v
, ctx
->FragmentProgram
.Machine
.Outputs
[FRAG_OUTPUT_COLH
]);
1128 else if (_mesa_strcmp(reg
, "o[DEPR]") == 0) {
1129 /* Fragment output depth */
1130 COPY_4V(v
, ctx
->FragmentProgram
.Machine
.Outputs
[FRAG_OUTPUT_DEPR
]);
1133 /* try user-defined identifiers */
1134 const GLfloat
*value
= _mesa_lookup_parameter_value(
1135 ctx
->FragmentProgram
.Current
->Parameters
, -1, reg
);
1140 _mesa_error(ctx
, GL_INVALID_VALUE
,
1141 "glGetProgramRegisterfvMESA(registerName)");
1147 _mesa_error(ctx
, GL_INVALID_ENUM
,
1148 "glGetProgramRegisterfvMESA(target)");