2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2005 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 "program_instruction.h"
41 #include "nvvertparse.h"
42 #include "atifragshader.h"
45 /**********************************************************************/
46 /* Utility functions */
47 /**********************************************************************/
50 /* A pointer to this dummy program is put into the hash table when
51 * glGenPrograms is called.
53 struct program _mesa_DummyProgram
;
57 * Init context's vertex/fragment program state
60 _mesa_init_program(GLcontext
*ctx
)
64 ctx
->Program
.ErrorPos
= -1;
65 ctx
->Program
.ErrorString
= _mesa_strdup("");
67 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
68 ctx
->VertexProgram
.Enabled
= GL_FALSE
;
69 ctx
->VertexProgram
.PointSizeEnabled
= GL_FALSE
;
70 ctx
->VertexProgram
.TwoSideEnabled
= GL_FALSE
;
71 ctx
->VertexProgram
.Current
= (struct vertex_program
*) ctx
->Shared
->DefaultVertexProgram
;
72 assert(ctx
->VertexProgram
.Current
);
73 ctx
->VertexProgram
.Current
->Base
.RefCount
++;
74 for (i
= 0; i
< MAX_NV_VERTEX_PROGRAM_PARAMS
/ 4; i
++) {
75 ctx
->VertexProgram
.TrackMatrix
[i
] = GL_NONE
;
76 ctx
->VertexProgram
.TrackMatrixTransform
[i
] = GL_IDENTITY_NV
;
80 #if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program
81 ctx
->FragmentProgram
.Enabled
= GL_FALSE
;
82 ctx
->FragmentProgram
.Current
= (struct fragment_program
*) ctx
->Shared
->DefaultFragmentProgram
;
83 assert(ctx
->FragmentProgram
.Current
);
84 ctx
->FragmentProgram
.Current
->Base
.RefCount
++;
87 #if FEATURE_ATI_fragment_shader
88 ctx
->ATIFragmentShader
.Enabled
= GL_FALSE
;
89 ctx
->ATIFragmentShader
.Current
= (struct ati_fragment_shader
*) ctx
->Shared
->DefaultFragmentShader
;
90 assert(ctx
->ATIFragmentShader
.Current
);
91 ctx
->ATIFragmentShader
.Current
->Base
.RefCount
++;
97 * Free a context's vertex/fragment program state
100 _mesa_free_program_data(GLcontext
*ctx
)
102 #if FEATURE_NV_vertex_program
103 if (ctx
->VertexProgram
.Current
) {
104 ctx
->VertexProgram
.Current
->Base
.RefCount
--;
105 if (ctx
->VertexProgram
.Current
->Base
.RefCount
<= 0)
106 ctx
->Driver
.DeleteProgram(ctx
, &(ctx
->VertexProgram
.Current
->Base
));
109 #if FEATURE_NV_fragment_program
110 if (ctx
->FragmentProgram
.Current
) {
111 ctx
->FragmentProgram
.Current
->Base
.RefCount
--;
112 if (ctx
->FragmentProgram
.Current
->Base
.RefCount
<= 0)
113 ctx
->Driver
.DeleteProgram(ctx
, &(ctx
->FragmentProgram
.Current
->Base
));
116 #if FEATURE_ATI_fragment_shader
117 if (ctx
->ATIFragmentShader
.Current
) {
118 ctx
->ATIFragmentShader
.Current
->Base
.RefCount
--;
119 if (ctx
->ATIFragmentShader
.Current
->Base
.RefCount
<= 0)
120 ctx
->Driver
.DeleteProgram(ctx
, &(ctx
->ATIFragmentShader
.Current
->Base
));
123 _mesa_free((void *) ctx
->Program
.ErrorString
);
130 * Set the vertex/fragment program error state (position and error string).
131 * This is generally called from within the parsers.
134 _mesa_set_program_error(GLcontext
*ctx
, GLint pos
, const char *string
)
136 ctx
->Program
.ErrorPos
= pos
;
137 _mesa_free((void *) ctx
->Program
.ErrorString
);
140 ctx
->Program
.ErrorString
= _mesa_strdup(string
);
145 * Find the line number and column for 'pos' within 'string'.
146 * Return a copy of the line which contains 'pos'. Free the line with
148 * \param string the program string
149 * \param pos the position within the string
150 * \param line returns the line number corresponding to 'pos'.
151 * \param col returns the column number corresponding to 'pos'.
152 * \return copy of the line containing 'pos'.
155 _mesa_find_line_column(const GLubyte
*string
, const GLubyte
*pos
,
156 GLint
*line
, GLint
*col
)
158 const GLubyte
*lineStart
= string
;
159 const GLubyte
*p
= string
;
166 if (*p
== (GLubyte
) '\n') {
173 *col
= (pos
- lineStart
) + 1;
175 /* return copy of this line */
176 while (*p
!= 0 && *p
!= '\n')
179 s
= (GLubyte
*) _mesa_malloc(len
+ 1);
180 _mesa_memcpy(s
, lineStart
, len
);
188 * Initialize a new vertex/fragment program object.
190 static struct program
*
191 _mesa_init_program_struct( GLcontext
*ctx
, struct program
*prog
,
192 GLenum target
, GLuint id
)
197 prog
->Target
= target
;
198 prog
->Resident
= GL_TRUE
;
207 * Initialize a new fragment program object.
210 _mesa_init_fragment_program( GLcontext
*ctx
, struct fragment_program
*prog
,
211 GLenum target
, GLuint id
)
214 return _mesa_init_program_struct( ctx
, &prog
->Base
, target
, id
);
221 * Initialize a new vertex program object.
224 _mesa_init_vertex_program( GLcontext
*ctx
, struct vertex_program
*prog
,
225 GLenum target
, GLuint id
)
228 return _mesa_init_program_struct( ctx
, &prog
->Base
, target
, id
);
234 * Initialize a new ATI fragment shader object.
237 _mesa_init_ati_fragment_shader( GLcontext
*ctx
,
238 struct ati_fragment_shader
*prog
,
239 GLenum target
, GLuint id
)
242 return _mesa_init_program_struct( ctx
, &prog
->Base
, target
, id
);
250 * Allocate and initialize a new fragment/vertex program object but
251 * don't put it into the program hash table. Called via
252 * ctx->Driver.NewProgram. May be overridden (ie. replaced) by a
253 * device driver function to implement OO deriviation with additional
254 * types not understood by this function.
257 * \param id program id/number
258 * \param target program target/type
259 * \return pointer to new program object
262 _mesa_new_program(GLcontext
*ctx
, GLenum target
, GLuint id
)
265 case GL_VERTEX_PROGRAM_ARB
: /* == GL_VERTEX_PROGRAM_NV */
266 return _mesa_init_vertex_program( ctx
, CALLOC_STRUCT(vertex_program
),
268 case GL_FRAGMENT_PROGRAM_NV
:
269 case GL_FRAGMENT_PROGRAM_ARB
:
270 return _mesa_init_fragment_program( ctx
, CALLOC_STRUCT(fragment_program
),
272 case GL_FRAGMENT_SHADER_ATI
:
273 return _mesa_init_ati_fragment_shader( ctx
, CALLOC_STRUCT(ati_fragment_shader
),
277 _mesa_problem(ctx
, "bad target in _mesa_new_program");
284 * Delete a program and remove it from the hash table, ignoring the
286 * Called via ctx->Driver.DeleteProgram. May be wrapped (OO deriviation)
287 * by a device driver function.
290 _mesa_delete_program(GLcontext
*ctx
, struct program
*prog
)
296 _mesa_free(prog
->String
);
297 if (prog
->Target
== GL_VERTEX_PROGRAM_NV
||
298 prog
->Target
== GL_VERTEX_STATE_PROGRAM_NV
) {
299 struct vertex_program
*vprog
= (struct vertex_program
*) prog
;
300 if (vprog
->Instructions
) {
302 for (i
= 0; i
< vprog
->Base
.NumInstructions
; i
++) {
303 if (vprog
->Instructions
[i
].Data
)
304 _mesa_free(vprog
->Instructions
[i
].Data
);
306 _mesa_free(vprog
->Instructions
);
308 if (vprog
->Parameters
)
309 _mesa_free_parameter_list(vprog
->Parameters
);
311 else if (prog
->Target
== GL_FRAGMENT_PROGRAM_NV
||
312 prog
->Target
== GL_FRAGMENT_PROGRAM_ARB
) {
313 struct fragment_program
*fprog
= (struct fragment_program
*) prog
;
314 if (fprog
->Instructions
) {
316 for (i
= 0; i
< fprog
->Base
.NumInstructions
; i
++) {
317 if (fprog
->Instructions
[i
].Data
)
318 _mesa_free(fprog
->Instructions
[i
].Data
);
320 _mesa_free(fprog
->Instructions
);
322 if (fprog
->Parameters
)
323 _mesa_free_parameter_list(fprog
->Parameters
);
325 else if (prog
->Target
== GL_FRAGMENT_SHADER_ATI
) {
326 struct ati_fragment_shader
*atifs
= (struct ati_fragment_shader
*)prog
;
328 for (i
= 0; i
< MAX_NUM_PASSES_ATI
; i
++) {
329 if (atifs
->Instructions
[i
])
330 _mesa_free(atifs
->Instructions
[i
]);
331 if (atifs
->SetupInst
[i
])
332 _mesa_free(atifs
->SetupInst
[i
]);
341 /**********************************************************************/
342 /* Program parameter functions */
343 /**********************************************************************/
345 struct program_parameter_list
*
346 _mesa_new_parameter_list(void)
348 return (struct program_parameter_list
*)
349 _mesa_calloc(sizeof(struct program_parameter_list
));
354 * Free a parameter list and all its parameters
357 _mesa_free_parameter_list(struct program_parameter_list
*paramList
)
359 _mesa_free_parameters(paramList
);
360 _mesa_free(paramList
->Parameters
);
361 if (paramList
->ParameterValues
)
362 ALIGN_FREE(paramList
->ParameterValues
);
363 _mesa_free(paramList
);
368 * Free all the parameters in the given list, but don't free the
369 * paramList structure itself.
372 _mesa_free_parameters(struct program_parameter_list
*paramList
)
375 for (i
= 0; i
< paramList
->NumParameters
; i
++) {
376 if (paramList
->Parameters
[i
].Name
)
377 _mesa_free((void *) paramList
->Parameters
[i
].Name
);
379 paramList
->NumParameters
= 0;
384 * Helper function used by the functions below.
385 * \return index of new parameter in the list, or -1 if error (out of mem)
388 add_parameter(struct program_parameter_list
*paramList
,
389 const char *name
, const GLfloat values
[4],
390 enum register_file type
)
392 const GLuint n
= paramList
->NumParameters
;
394 if (n
== paramList
->Size
) {
397 paramList
->Size
*= 2;
398 if (!paramList
->Size
)
401 paramList
->Parameters
= (struct program_parameter
*)
402 _mesa_realloc(paramList
->Parameters
,
403 n
* sizeof(struct program_parameter
),
404 paramList
->Size
* sizeof(struct program_parameter
));
406 tmp
= paramList
->ParameterValues
;
407 paramList
->ParameterValues
= ALIGN_MALLOC(paramList
->Size
* 4 * sizeof(GLfloat
), 16);
409 _mesa_memcpy(paramList
->ParameterValues
, tmp
,
410 n
* 4 * sizeof(GLfloat
));
415 if (!paramList
->Parameters
||
416 !paramList
->ParameterValues
) {
418 paramList
->NumParameters
= 0;
423 paramList
->NumParameters
= n
+ 1;
425 _mesa_memset(¶mList
->Parameters
[n
], 0,
426 sizeof(struct program_parameter
));
428 paramList
->Parameters
[n
].Name
= name
? _mesa_strdup(name
) : NULL
;
429 paramList
->Parameters
[n
].Type
= type
;
431 COPY_4V(paramList
->ParameterValues
[n
], values
);
438 * Add a new named program parameter (Ex: NV_fragment_program DEFINE statement)
439 * \return index of the new entry in the parameter list
442 _mesa_add_named_parameter(struct program_parameter_list
*paramList
,
443 const char *name
, const GLfloat values
[4])
445 return add_parameter(paramList
, name
, values
, PROGRAM_NAMED_PARAM
);
450 * Add a new unnamed constant to the parameter list.
451 * \param paramList - the parameter list
452 * \param values - four float values
453 * \return index of the new parameter.
456 _mesa_add_named_constant(struct program_parameter_list
*paramList
,
457 const char *name
, const GLfloat values
[4])
459 return add_parameter(paramList
, name
, values
, PROGRAM_CONSTANT
);
464 * Add a new unnamed constant to the parameter list.
465 * \param paramList - the parameter list
466 * \param values - four float values
467 * \return index of the new parameter.
470 _mesa_add_unnamed_constant(struct program_parameter_list
*paramList
,
471 const GLfloat values
[4])
473 return add_parameter(paramList
, NULL
, values
, PROGRAM_CONSTANT
);
478 * Add a new state reference to the parameter list.
479 * \param paramList - the parameter list
480 * \param state - an array of 6 state tokens
482 * \return index of the new parameter.
485 _mesa_add_state_reference(struct program_parameter_list
*paramList
,
486 const GLint
*stateTokens
)
488 /* XXX we should probably search the current parameter list to see if
489 * the new state reference is already present.
493 index
= add_parameter(paramList
, NULL
, NULL
, PROGRAM_STATE_VAR
);
496 for (i
= 0; i
< 6; i
++)
497 paramList
->Parameters
[index
].StateIndexes
[i
]
498 = (enum state_index
) stateTokens
[i
];
506 * Lookup a parameter value by name in the given parameter list.
507 * \return pointer to the float[4] values.
510 _mesa_lookup_parameter_value(struct program_parameter_list
*paramList
,
511 GLsizei nameLen
, const char *name
)
519 /* name is null-terminated */
520 for (i
= 0; i
< paramList
->NumParameters
; i
++) {
521 if (paramList
->Parameters
[i
].Name
&&
522 _mesa_strcmp(paramList
->Parameters
[i
].Name
, name
) == 0)
523 return paramList
->ParameterValues
[i
];
527 /* name is not null-terminated, use nameLen */
528 for (i
= 0; i
< paramList
->NumParameters
; i
++) {
529 if (paramList
->Parameters
[i
].Name
&&
530 _mesa_strncmp(paramList
->Parameters
[i
].Name
, name
, nameLen
) == 0
531 && _mesa_strlen(paramList
->Parameters
[i
].Name
) == (size_t)nameLen
)
532 return paramList
->ParameterValues
[i
];
540 * Lookup a parameter index by name in the given parameter list.
541 * \return index of parameter in the list.
544 _mesa_lookup_parameter_index(struct program_parameter_list
*paramList
,
545 GLsizei nameLen
, const char *name
)
553 /* name is null-terminated */
554 for (i
= 0; i
< (GLint
) paramList
->NumParameters
; i
++) {
555 if (paramList
->Parameters
[i
].Name
&&
556 _mesa_strcmp(paramList
->Parameters
[i
].Name
, name
) == 0)
561 /* name is not null-terminated, use nameLen */
562 for (i
= 0; i
< (GLint
) paramList
->NumParameters
; i
++) {
563 if (paramList
->Parameters
[i
].Name
&&
564 _mesa_strncmp(paramList
->Parameters
[i
].Name
, name
, nameLen
) == 0
565 && _mesa_strlen(paramList
->Parameters
[i
].Name
) == (size_t)nameLen
)
574 * Use the list of tokens in the state[] array to find global GL state
575 * and return it in <value>. Usually, four values are returned in <value>
576 * but matrix queries may return as many as 16 values.
577 * This function is used for ARB vertex/fragment programs.
578 * The program parser will produce the state[] values.
581 _mesa_fetch_state(GLcontext
*ctx
, const enum state_index state
[],
587 /* state[1] is either 0=front or 1=back side */
588 const GLuint face
= (GLuint
) state
[1];
589 /* state[2] is the material attribute */
593 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_AMBIENT
]);
595 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_AMBIENT
]);
599 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_DIFFUSE
]);
601 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_DIFFUSE
]);
605 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_SPECULAR
]);
607 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_SPECULAR
]);
611 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_EMISSION
]);
613 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_EMISSION
]);
615 case STATE_SHININESS
:
617 value
[0] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_SHININESS
][0];
619 value
[0] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_SHININESS
][0];
625 _mesa_problem(ctx
, "Invalid material state in fetch_state");
631 /* state[1] is the light number */
632 const GLuint ln
= (GLuint
) state
[1];
633 /* state[2] is the light attribute */
636 COPY_4V(value
, ctx
->Light
.Light
[ln
].Ambient
);
639 COPY_4V(value
, ctx
->Light
.Light
[ln
].Diffuse
);
642 COPY_4V(value
, ctx
->Light
.Light
[ln
].Specular
);
645 COPY_4V(value
, ctx
->Light
.Light
[ln
].EyePosition
);
647 case STATE_ATTENUATION
:
648 value
[0] = ctx
->Light
.Light
[ln
].ConstantAttenuation
;
649 value
[1] = ctx
->Light
.Light
[ln
].LinearAttenuation
;
650 value
[2] = ctx
->Light
.Light
[ln
].QuadraticAttenuation
;
651 value
[3] = ctx
->Light
.Light
[ln
].SpotExponent
;
653 case STATE_SPOT_DIRECTION
:
654 COPY_3V(value
, ctx
->Light
.Light
[ln
].EyeDirection
);
655 value
[3] = ctx
->Light
.Light
[ln
]._CosCutoff
;
659 GLfloat eye_z
[] = {0, 0, 1};
661 /* Compute infinite half angle vector:
662 * half-vector = light_position + (0, 0, 1)
663 * and then normalize. w = 0
665 * light.EyePosition.w should be 0 for infinite lights.
667 ADD_3V(value
, eye_z
, ctx
->Light
.Light
[ln
].EyePosition
);
668 NORMALIZE_3FV(value
);
672 case STATE_POSITION_NORMALIZED
:
673 COPY_4V(value
, ctx
->Light
.Light
[ln
].EyePosition
);
674 NORMALIZE_3FV( value
);
677 _mesa_problem(ctx
, "Invalid light state in fetch_state");
681 case STATE_LIGHTMODEL_AMBIENT
:
682 COPY_4V(value
, ctx
->Light
.Model
.Ambient
);
684 case STATE_LIGHTMODEL_SCENECOLOR
:
688 for (i
= 0; i
< 3; i
++) {
689 value
[i
] = ctx
->Light
.Model
.Ambient
[i
]
690 * ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_AMBIENT
][i
]
691 + ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_EMISSION
][i
];
693 value
[3] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_DIFFUSE
][3];
698 for (i
= 0; i
< 3; i
++) {
699 value
[i
] = ctx
->Light
.Model
.Ambient
[i
]
700 * ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_AMBIENT
][i
]
701 + ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_EMISSION
][i
];
703 value
[3] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_DIFFUSE
][3];
706 case STATE_LIGHTPROD
:
708 const GLuint ln
= (GLuint
) state
[1];
709 const GLuint face
= (GLuint
) state
[2];
711 ASSERT(face
== 0 || face
== 1);
714 for (i
= 0; i
< 3; i
++) {
715 value
[i
] = ctx
->Light
.Light
[ln
].Ambient
[i
] *
716 ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_AMBIENT
+face
][i
];
718 /* [3] = material alpha */
719 value
[3] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_DIFFUSE
+face
][3];
722 for (i
= 0; i
< 3; i
++) {
723 value
[i
] = ctx
->Light
.Light
[ln
].Diffuse
[i
] *
724 ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_DIFFUSE
+face
][i
];
726 /* [3] = material alpha */
727 value
[3] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_DIFFUSE
+face
][3];
730 for (i
= 0; i
< 3; i
++) {
731 value
[i
] = ctx
->Light
.Light
[ln
].Specular
[i
] *
732 ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_SPECULAR
+face
][i
];
734 /* [3] = material alpha */
735 value
[3] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_DIFFUSE
+face
][3];
738 _mesa_problem(ctx
, "Invalid lightprod state in fetch_state");
744 /* state[1] is the texture unit */
745 const GLuint unit
= (GLuint
) state
[1];
746 /* state[2] is the texgen attribute */
748 case STATE_TEXGEN_EYE_S
:
749 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].EyePlaneS
);
751 case STATE_TEXGEN_EYE_T
:
752 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].EyePlaneT
);
754 case STATE_TEXGEN_EYE_R
:
755 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].EyePlaneR
);
757 case STATE_TEXGEN_EYE_Q
:
758 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].EyePlaneQ
);
760 case STATE_TEXGEN_OBJECT_S
:
761 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].ObjectPlaneS
);
763 case STATE_TEXGEN_OBJECT_T
:
764 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].ObjectPlaneT
);
766 case STATE_TEXGEN_OBJECT_R
:
767 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].ObjectPlaneR
);
769 case STATE_TEXGEN_OBJECT_Q
:
770 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].ObjectPlaneQ
);
773 _mesa_problem(ctx
, "Invalid texgen state in fetch_state");
777 case STATE_TEXENV_COLOR
:
779 /* state[1] is the texture unit */
780 const GLuint unit
= (GLuint
) state
[1];
781 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].EnvColor
);
784 case STATE_FOG_COLOR
:
785 COPY_4V(value
, ctx
->Fog
.Color
);
787 case STATE_FOG_PARAMS
:
788 value
[0] = ctx
->Fog
.Density
;
789 value
[1] = ctx
->Fog
.Start
;
790 value
[2] = ctx
->Fog
.End
;
791 value
[3] = 1.0F
/ (ctx
->Fog
.End
- ctx
->Fog
.Start
);
793 case STATE_CLIPPLANE
:
795 const GLuint plane
= (GLuint
) state
[1];
796 COPY_4V(value
, ctx
->Transform
.EyeUserPlane
[plane
]);
799 case STATE_POINT_SIZE
:
800 value
[0] = ctx
->Point
.Size
;
801 value
[1] = ctx
->Point
.MinSize
;
802 value
[2] = ctx
->Point
.MaxSize
;
803 value
[3] = ctx
->Point
.Threshold
;
805 case STATE_POINT_ATTENUATION
:
806 value
[0] = ctx
->Point
.Params
[0];
807 value
[1] = ctx
->Point
.Params
[1];
808 value
[2] = ctx
->Point
.Params
[2];
813 /* state[1] = modelview, projection, texture, etc. */
814 /* state[2] = which texture matrix or program matrix */
815 /* state[3] = first column to fetch */
816 /* state[4] = last column to fetch */
817 /* state[5] = transpose, inverse or invtrans */
819 const GLmatrix
*matrix
;
820 const enum state_index mat
= state
[1];
821 const GLuint index
= (GLuint
) state
[2];
822 const GLuint first
= (GLuint
) state
[3];
823 const GLuint last
= (GLuint
) state
[4];
824 const enum state_index modifier
= state
[5];
827 if (mat
== STATE_MODELVIEW
) {
828 matrix
= ctx
->ModelviewMatrixStack
.Top
;
830 else if (mat
== STATE_PROJECTION
) {
831 matrix
= ctx
->ProjectionMatrixStack
.Top
;
833 else if (mat
== STATE_MVP
) {
834 matrix
= &ctx
->_ModelProjectMatrix
;
836 else if (mat
== STATE_TEXTURE
) {
837 matrix
= ctx
->TextureMatrixStack
[index
].Top
;
839 else if (mat
== STATE_PROGRAM
) {
840 matrix
= ctx
->ProgramMatrixStack
[index
].Top
;
843 _mesa_problem(ctx
, "Bad matrix name in _mesa_fetch_state()");
846 if (modifier
== STATE_MATRIX_INVERSE
||
847 modifier
== STATE_MATRIX_INVTRANS
) {
848 /* Be sure inverse is up to date:
850 _math_matrix_analyse( (GLmatrix
*) matrix
);
856 if (modifier
== STATE_MATRIX_TRANSPOSE
||
857 modifier
== STATE_MATRIX_INVTRANS
) {
858 for (i
= 0, row
= first
; row
<= last
; row
++) {
859 value
[i
++] = m
[row
* 4 + 0];
860 value
[i
++] = m
[row
* 4 + 1];
861 value
[i
++] = m
[row
* 4 + 2];
862 value
[i
++] = m
[row
* 4 + 3];
866 for (i
= 0, row
= first
; row
<= last
; row
++) {
867 value
[i
++] = m
[row
+ 0];
868 value
[i
++] = m
[row
+ 4];
869 value
[i
++] = m
[row
+ 8];
870 value
[i
++] = m
[row
+ 12];
875 case STATE_DEPTH_RANGE
:
876 value
[0] = ctx
->Viewport
.Near
; /* near */
877 value
[1] = ctx
->Viewport
.Far
; /* far */
878 value
[2] = ctx
->Viewport
.Far
- ctx
->Viewport
.Near
; /* far - near */
881 case STATE_FRAGMENT_PROGRAM
:
883 /* state[1] = {STATE_ENV, STATE_LOCAL} */
884 /* state[2] = parameter index */
885 const int idx
= (int) state
[2];
888 COPY_4V(value
, ctx
->FragmentProgram
.Parameters
[idx
]);
891 COPY_4V(value
, ctx
->FragmentProgram
.Current
->Base
.LocalParams
[idx
]);
894 _mesa_problem(ctx
, "Bad state switch in _mesa_fetch_state()");
900 case STATE_VERTEX_PROGRAM
:
902 /* state[1] = {STATE_ENV, STATE_LOCAL} */
903 /* state[2] = parameter index */
904 const int idx
= (int) state
[2];
907 COPY_4V(value
, ctx
->VertexProgram
.Parameters
[idx
]);
910 COPY_4V(value
, ctx
->VertexProgram
.Current
->Base
.LocalParams
[idx
]);
913 _mesa_problem(ctx
, "Bad state switch in _mesa_fetch_state()");
922 case STATE_NORMAL_SCALE
:
923 ASSIGN_4V(value
, ctx
->_ModelViewInvScale
, 0, 0, 1);
926 _mesa_problem(ctx
, "Bad state switch in _mesa_fetch_state()");
933 _mesa_problem(ctx
, "Invalid state in _mesa_fetch_state");
940 * Loop over all the parameters in a parameter list. If the parameter
941 * is a GL state reference, look up the current value of that state
942 * variable and put it into the parameter's Value[4] array.
943 * This would be called at glBegin time when using a fragment program.
946 _mesa_load_state_parameters(GLcontext
*ctx
,
947 struct program_parameter_list
*paramList
)
954 for (i
= 0; i
< paramList
->NumParameters
; i
++) {
955 if (paramList
->Parameters
[i
].Type
== PROGRAM_STATE_VAR
) {
956 _mesa_fetch_state(ctx
,
957 paramList
->Parameters
[i
].StateIndexes
,
958 paramList
->ParameterValues
[i
]);
965 * Basic info about each instruction
967 struct instruction_info
969 enum prog_opcode Opcode
;
976 * \note Opcode should equal array index!
978 static const struct instruction_info InstInfo
[MAX_OPCODE
] = {
979 { OPCODE_ABS
, "ABS", 1 },
980 { OPCODE_ADD
, "ADD", 2 },
981 { OPCODE_ARA
, "ARA", 1 },
982 { OPCODE_ARL
, "ARL", 1 },
983 { OPCODE_ARL_NV
, "ARL", 1 },
984 { OPCODE_ARR
, "ARL", 1 },
985 { OPCODE_BRA
, "BRA", 1 },
986 { OPCODE_CAL
, "CAL", 1 },
987 { OPCODE_CMP
, "CMP", 3 },
988 { OPCODE_COS
, "COS", 1 },
989 { OPCODE_DDX
, "DDX", 1 },
990 { OPCODE_DDY
, "DDY", 1 },
991 { OPCODE_DP3
, "DP3", 2 },
992 { OPCODE_DP4
, "DP4", 2 },
993 { OPCODE_DPH
, "DPH", 2 },
994 { OPCODE_DST
, "DST", 2 },
995 { OPCODE_END
, "END", 0 },
996 { OPCODE_EX2
, "EX2", 1 },
997 { OPCODE_EXP
, "EXP", 1 },
998 { OPCODE_FLR
, "FLR", 1 },
999 { OPCODE_FRC
, "FRC", 1 },
1000 { OPCODE_KIL
, "KIL", 1 },
1001 { OPCODE_KIL_NV
, "KIL", 0 },
1002 { OPCODE_LG2
, "LG2", 1 },
1003 { OPCODE_LIT
, "LIT", 1 },
1004 { OPCODE_LOG
, "LOG", 1 },
1005 { OPCODE_LRP
, "LRP", 3 },
1006 { OPCODE_MAD
, "MAD", 3 },
1007 { OPCODE_MAX
, "MAX", 2 },
1008 { OPCODE_MIN
, "MIN", 2 },
1009 { OPCODE_MOV
, "MOV", 1 },
1010 { OPCODE_MUL
, "MUL", 2 },
1011 { OPCODE_PK2H
, "PK2H", 1 },
1012 { OPCODE_PK2US
, "PK2US", 1 },
1013 { OPCODE_PK4B
, "PK4B", 1 },
1014 { OPCODE_PK4UB
, "PK4UB", 1 },
1015 { OPCODE_POW
, "POW", 2 },
1016 { OPCODE_POPA
, "POPA", 0 },
1017 { OPCODE_PRINT
, "PRINT", 1 },
1018 { OPCODE_PUSHA
, "PUSHA", 0 },
1019 { OPCODE_RCC
, "RCC", 1 },
1020 { OPCODE_RCP
, "RCP", 1 },
1021 { OPCODE_RET
, "RET", 1 },
1022 { OPCODE_RFL
, "RFL", 1 },
1023 { OPCODE_RSQ
, "RSQ", 1 },
1024 { OPCODE_SCS
, "SCS", 1 },
1025 { OPCODE_SEQ
, "SEQ", 2 },
1026 { OPCODE_SFL
, "SFL", 0 },
1027 { OPCODE_SGE
, "SGE", 2 },
1028 { OPCODE_SGT
, "SGT", 2 },
1029 { OPCODE_SIN
, "SIN", 1 },
1030 { OPCODE_SLE
, "SLE", 2 },
1031 { OPCODE_SLT
, "SLT", 2 },
1032 { OPCODE_SNE
, "SNE", 2 },
1033 { OPCODE_SSG
, "SSG", 1 },
1034 { OPCODE_STR
, "STR", 0 },
1035 { OPCODE_SUB
, "SUB", 2 },
1036 { OPCODE_SWZ
, "SWZ", 1 },
1037 { OPCODE_TEX
, "TEX", 1 },
1038 { OPCODE_TXB
, "TXB", 1 },
1039 { OPCODE_TXD
, "TXD", 3 },
1040 { OPCODE_TXL
, "TXL", 1 },
1041 { OPCODE_TXP
, "TXP", 1 },
1042 { OPCODE_TXP_NV
, "TXP", 1 },
1043 { OPCODE_UP2H
, "UP2H", 1 },
1044 { OPCODE_UP2US
, "UP2US", 1 },
1045 { OPCODE_UP4B
, "UP4B", 1 },
1046 { OPCODE_UP4UB
, "UP4UB", 1 },
1047 { OPCODE_X2D
, "X2D", 3 },
1048 { OPCODE_XPD
, "XPD", 2 }
1053 * Return the number of src registers for the given instruction/opcode.
1056 _mesa_num_inst_src_regs(enum prog_opcode opcode
)
1060 for (i
= 0; i
< MAX_OPCODE
; i
++) {
1061 ASSERT(i
== InstInfo
[i
].Opcode
);
1064 for (i
= 0; i
< MAX_OPCODE
; i
++) {
1065 if (InstInfo
[i
].Opcode
== opcode
) {
1066 return InstInfo
[i
].NumSrcRegs
;
1069 _mesa_problem(NULL
, "invalid opcode in _mesa_num_inst_src_regs");
1075 * Return string name for given program opcode.
1078 _mesa_opcode_string(enum prog_opcode opcode
)
1080 ASSERT(opcode
< MAX_OPCODE
);
1081 return InstInfo
[opcode
].Name
;
1085 * Return string name for given program/register file.
1088 program_file_string(enum register_file f
)
1091 case PROGRAM_TEMPORARY
:
1093 case PROGRAM_LOCAL_PARAM
:
1095 case PROGRAM_ENV_PARAM
:
1097 case PROGRAM_STATE_VAR
:
1101 case PROGRAM_OUTPUT
:
1103 case PROGRAM_NAMED_PARAM
:
1105 case PROGRAM_CONSTANT
:
1107 case PROGRAM_WRITE_ONLY
:
1108 return "WRITE_ONLY";
1109 case PROGRAM_ADDRESS
:
1118 * Return a string representation of the given swizzle word.
1121 swizzle_string(GLuint swizzle
, GLuint negateBase
)
1123 static const char swz
[] = "xyzw01";
1127 if (swizzle
== SWIZZLE_NOOP
&& negateBase
== 0)
1128 return ""; /* no swizzle/negation */
1132 if (negateBase
& 0x1)
1134 s
[i
++] = swz
[GET_SWZ(swizzle
, 0)];
1136 if (negateBase
& 0x2)
1138 s
[i
++] = swz
[GET_SWZ(swizzle
, 1)];
1140 if (negateBase
& 0x4)
1142 s
[i
++] = swz
[GET_SWZ(swizzle
, 2)];
1144 if (negateBase
& 0x8)
1146 s
[i
++] = swz
[GET_SWZ(swizzle
, 3)];
1154 writemask_string(GLuint writeMask
)
1159 if (writeMask
== WRITEMASK_XYZW
)
1163 if (writeMask
& WRITEMASK_X
)
1165 if (writeMask
& WRITEMASK_Y
)
1167 if (writeMask
& WRITEMASK_Z
)
1169 if (writeMask
& WRITEMASK_W
)
1178 * Print a vertx/fragment program to stdout.
1179 * XXX this function could be greatly improved.
1182 _mesa_print_program(GLuint count
, const struct prog_instruction
*inst
)
1186 for (i
= 0; i
< count
; i
++) {
1188 _mesa_printf("%3d: ", i
);
1190 switch (inst
[i
].Opcode
) {
1192 _mesa_printf("PRINT '%s'", inst
[i
].Data
);
1193 if (inst
->SrcReg
[0].File
!= PROGRAM_UNDEFINED
) {
1195 _mesa_printf("%s[%d]%s",
1196 program_file_string(inst
[i
].SrcReg
[0].File
),
1197 inst
[i
].SrcReg
[0].Index
,
1198 swizzle_string(inst
[i
].SrcReg
[0].Swizzle
,
1199 inst
[i
].SrcReg
[0].NegateBase
));
1201 _mesa_printf(";\n");
1203 /* XXX check for a bunch of other special-case instructions */
1205 /* typical alu instruction */
1207 const GLuint numRegs
= _mesa_num_inst_src_regs(inst
[i
].Opcode
);
1210 _mesa_printf("%s", _mesa_opcode_string(inst
[i
].Opcode
));
1212 /* frag prog only */
1213 if (inst
[i
].Saturate
)
1214 _mesa_printf("_SAT");
1216 if (inst
[i
].DstReg
.File
!= PROGRAM_UNDEFINED
) {
1217 _mesa_printf(" %s[%d]%s",
1218 program_file_string(inst
[i
].DstReg
.File
),
1219 inst
[i
].DstReg
.Index
,
1220 writemask_string(inst
[i
].DstReg
.WriteMask
));
1226 for (j
= 0; j
< numRegs
; j
++) {
1227 _mesa_printf("%s[%d]%s",
1228 program_file_string(inst
[i
].SrcReg
[j
].File
),
1229 inst
[i
].SrcReg
[j
].Index
,
1230 swizzle_string(inst
[i
].SrcReg
[j
].Swizzle
,
1231 inst
[i
].SrcReg
[j
].NegateBase
));
1232 if (j
+ 1 < numRegs
)
1236 _mesa_printf(";\n");
1245 /**********************************************************************/
1247 /**********************************************************************/
1251 * Bind a program (make it current)
1252 * \note Called from the GL API dispatcher by both glBindProgramNV
1253 * and glBindProgramARB.
1256 _mesa_BindProgram(GLenum target
, GLuint id
)
1258 struct program
*prog
;
1259 GET_CURRENT_CONTEXT(ctx
);
1260 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1262 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
1264 if ((target
== GL_VERTEX_PROGRAM_NV
1265 && ctx
->Extensions
.NV_vertex_program
) ||
1266 (target
== GL_VERTEX_PROGRAM_ARB
1267 && ctx
->Extensions
.ARB_vertex_program
)) {
1268 /*** Vertex program binding ***/
1269 struct vertex_program
*curProg
= ctx
->VertexProgram
.Current
;
1270 if (curProg
->Base
.Id
== id
) {
1271 /* binding same program - no change */
1274 if (curProg
->Base
.Id
!= 0) {
1275 /* decrement refcount on previously bound vertex program */
1276 curProg
->Base
.RefCount
--;
1277 /* and delete if refcount goes below one */
1278 if (curProg
->Base
.RefCount
<= 0) {
1279 /* the program ID was already removed from the hash table */
1280 ctx
->Driver
.DeleteProgram(ctx
, &(curProg
->Base
));
1284 else if ((target
== GL_FRAGMENT_PROGRAM_NV
1285 && ctx
->Extensions
.NV_fragment_program
) ||
1286 (target
== GL_FRAGMENT_PROGRAM_ARB
1287 && ctx
->Extensions
.ARB_fragment_program
)) {
1288 /*** Fragment program binding ***/
1289 struct fragment_program
*curProg
= ctx
->FragmentProgram
.Current
;
1290 if (curProg
->Base
.Id
== id
) {
1291 /* binding same program - no change */
1294 if (curProg
->Base
.Id
!= 0) {
1295 /* decrement refcount on previously bound fragment program */
1296 curProg
->Base
.RefCount
--;
1297 /* and delete if refcount goes below one */
1298 if (curProg
->Base
.RefCount
<= 0) {
1299 /* the program ID was already removed from the hash table */
1300 ctx
->Driver
.DeleteProgram(ctx
, &(curProg
->Base
));
1305 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindProgramNV/ARB(target)");
1309 /* NOTE: binding to a non-existant program is not an error.
1310 * That's supposed to be caught in glBegin.
1313 /* Bind default program */
1315 if (target
== GL_VERTEX_PROGRAM_NV
|| target
== GL_VERTEX_PROGRAM_ARB
)
1316 prog
= ctx
->Shared
->DefaultVertexProgram
;
1318 prog
= ctx
->Shared
->DefaultFragmentProgram
;
1321 /* Bind user program */
1322 prog
= (struct program
*) _mesa_HashLookup(ctx
->Shared
->Programs
, id
);
1323 if (!prog
|| prog
== &_mesa_DummyProgram
) {
1324 /* allocate a new program now */
1325 prog
= ctx
->Driver
.NewProgram(ctx
, target
, id
);
1327 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindProgramNV/ARB");
1330 _mesa_HashInsert(ctx
->Shared
->Programs
, id
, prog
);
1332 else if (prog
->Target
!= target
) {
1333 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1334 "glBindProgramNV/ARB(target mismatch)");
1340 if (target
== GL_VERTEX_PROGRAM_NV
|| target
== GL_VERTEX_PROGRAM_ARB
) {
1341 ctx
->VertexProgram
.Current
= (struct vertex_program
*) prog
;
1343 else if (target
== GL_FRAGMENT_PROGRAM_NV
|| target
== GL_FRAGMENT_PROGRAM_ARB
) {
1344 ctx
->FragmentProgram
.Current
= (struct fragment_program
*) prog
;
1347 /* Never null pointers */
1348 ASSERT(ctx
->VertexProgram
.Current
);
1349 ASSERT(ctx
->FragmentProgram
.Current
);
1354 if (ctx
->Driver
.BindProgram
)
1355 ctx
->Driver
.BindProgram(ctx
, target
, prog
);
1360 * Delete a list of programs.
1361 * \note Not compiled into display lists.
1362 * \note Called by both glDeleteProgramsNV and glDeleteProgramsARB.
1365 _mesa_DeletePrograms(GLsizei n
, const GLuint
*ids
)
1368 GET_CURRENT_CONTEXT(ctx
);
1369 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
1372 _mesa_error( ctx
, GL_INVALID_VALUE
, "glDeleteProgramsNV" );
1376 for (i
= 0; i
< n
; i
++) {
1378 struct program
*prog
= (struct program
*)
1379 _mesa_HashLookup(ctx
->Shared
->Programs
, ids
[i
]);
1380 if (prog
== &_mesa_DummyProgram
) {
1381 _mesa_HashRemove(ctx
->Shared
->Programs
, ids
[i
]);
1384 /* Unbind program if necessary */
1385 if (prog
->Target
== GL_VERTEX_PROGRAM_NV
||
1386 prog
->Target
== GL_VERTEX_STATE_PROGRAM_NV
) {
1387 if (ctx
->VertexProgram
.Current
&&
1388 ctx
->VertexProgram
.Current
->Base
.Id
== ids
[i
]) {
1389 /* unbind this currently bound program */
1390 _mesa_BindProgram(prog
->Target
, 0);
1393 else if (prog
->Target
== GL_FRAGMENT_PROGRAM_NV
||
1394 prog
->Target
== GL_FRAGMENT_PROGRAM_ARB
) {
1395 if (ctx
->FragmentProgram
.Current
&&
1396 ctx
->FragmentProgram
.Current
->Base
.Id
== ids
[i
]) {
1397 /* unbind this currently bound program */
1398 _mesa_BindProgram(prog
->Target
, 0);
1402 _mesa_problem(ctx
, "bad target in glDeleteProgramsNV");
1405 /* The ID is immediately available for re-use now */
1406 _mesa_HashRemove(ctx
->Shared
->Programs
, ids
[i
]);
1408 if (prog
->RefCount
<= 0) {
1409 ctx
->Driver
.DeleteProgram(ctx
, prog
);
1418 * Generate a list of new program identifiers.
1419 * \note Not compiled into display lists.
1420 * \note Called by both glGenProgramsNV and glGenProgramsARB.
1423 _mesa_GenPrograms(GLsizei n
, GLuint
*ids
)
1427 GET_CURRENT_CONTEXT(ctx
);
1428 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1431 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenPrograms");
1438 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->Programs
, n
);
1440 /* Insert pointer to dummy program as placeholder */
1441 for (i
= 0; i
< (GLuint
) n
; i
++) {
1442 _mesa_HashInsert(ctx
->Shared
->Programs
, first
+ i
, &_mesa_DummyProgram
);
1445 /* Return the program names */
1446 for (i
= 0; i
< (GLuint
) n
; i
++) {
1453 * Determine if id names a vertex or fragment program.
1454 * \note Not compiled into display lists.
1455 * \note Called from both glIsProgramNV and glIsProgramARB.
1456 * \param id is the program identifier
1457 * \return GL_TRUE if id is a program, else GL_FALSE.
1459 GLboolean GLAPIENTRY
1460 _mesa_IsProgram(GLuint id
)
1462 GET_CURRENT_CONTEXT(ctx
);
1463 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1468 if (_mesa_HashLookup(ctx
->Shared
->Programs
, id
))
1476 /**********************************************************************/
1477 /* GL_MESA_program_debug extension */
1478 /**********************************************************************/
1482 GLAPI
void GLAPIENTRY
1483 glProgramCallbackMESA(GLenum target
, GLprogramcallbackMESA callback
,
1486 _mesa_ProgramCallbackMESA(target
, callback
, data
);
1491 _mesa_ProgramCallbackMESA(GLenum target
, GLprogramcallbackMESA callback
,
1494 GET_CURRENT_CONTEXT(ctx
);
1497 case GL_FRAGMENT_PROGRAM_ARB
:
1498 if (!ctx
->Extensions
.ARB_fragment_program
) {
1499 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramCallbackMESA(target)");
1502 ctx
->FragmentProgram
.Callback
= callback
;
1503 ctx
->FragmentProgram
.CallbackData
= data
;
1505 case GL_FRAGMENT_PROGRAM_NV
:
1506 if (!ctx
->Extensions
.NV_fragment_program
) {
1507 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramCallbackMESA(target)");
1510 ctx
->FragmentProgram
.Callback
= callback
;
1511 ctx
->FragmentProgram
.CallbackData
= data
;
1513 case GL_VERTEX_PROGRAM_ARB
: /* == GL_VERTEX_PROGRAM_NV */
1514 if (!ctx
->Extensions
.ARB_vertex_program
&&
1515 !ctx
->Extensions
.NV_vertex_program
) {
1516 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramCallbackMESA(target)");
1519 ctx
->VertexProgram
.Callback
= callback
;
1520 ctx
->VertexProgram
.CallbackData
= data
;
1523 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramCallbackMESA(target)");
1530 GLAPI
void GLAPIENTRY
1531 glGetProgramRegisterfvMESA(GLenum target
,
1532 GLsizei len
, const GLubyte
*registerName
,
1535 _mesa_GetProgramRegisterfvMESA(target
, len
, registerName
, v
);
1540 _mesa_GetProgramRegisterfvMESA(GLenum target
,
1541 GLsizei len
, const GLubyte
*registerName
,
1545 GET_CURRENT_CONTEXT(ctx
);
1547 /* We _should_ be inside glBegin/glEnd */
1549 if (ctx
->Driver
.CurrentExecPrimitive
== PRIM_OUTSIDE_BEGIN_END
) {
1550 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetProgramRegisterfvMESA");
1555 /* make null-terminated copy of registerName */
1556 len
= MIN2((unsigned int) len
, sizeof(reg
) - 1);
1557 _mesa_memcpy(reg
, registerName
, len
);
1561 case GL_VERTEX_PROGRAM_NV
:
1562 if (!ctx
->Extensions
.ARB_vertex_program
&&
1563 !ctx
->Extensions
.NV_vertex_program
) {
1564 _mesa_error(ctx
, GL_INVALID_ENUM
,
1565 "glGetProgramRegisterfvMESA(target)");
1568 if (!ctx
->VertexProgram
._Enabled
) {
1569 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1570 "glGetProgramRegisterfvMESA");
1573 /* GL_NV_vertex_program */
1574 if (reg
[0] == 'R') {
1576 GLint i
= _mesa_atoi(reg
+ 1);
1577 if (i
>= (GLint
)ctx
->Const
.VertexProgram
.MaxTemps
) {
1578 _mesa_error(ctx
, GL_INVALID_VALUE
,
1579 "glGetProgramRegisterfvMESA(registerName)");
1582 COPY_4V(v
, ctx
->VertexProgram
.Temporaries
[i
]);
1584 else if (reg
[0] == 'v' && reg
[1] == '[') {
1585 /* Vertex Input attribute */
1587 for (i
= 0; i
< ctx
->Const
.VertexProgram
.MaxAttribs
; i
++) {
1588 const char *name
= _mesa_nv_vertex_input_register_name(i
);
1590 _mesa_sprintf(number
, "%d", i
);
1591 if (_mesa_strncmp(reg
+ 2, name
, 4) == 0 ||
1592 _mesa_strncmp(reg
+ 2, number
, _mesa_strlen(number
)) == 0) {
1593 COPY_4V(v
, ctx
->VertexProgram
.Inputs
[i
]);
1597 _mesa_error(ctx
, GL_INVALID_VALUE
,
1598 "glGetProgramRegisterfvMESA(registerName)");
1601 else if (reg
[0] == 'o' && reg
[1] == '[') {
1602 /* Vertex output attribute */
1604 /* GL_ARB_vertex_program */
1605 else if (_mesa_strncmp(reg
, "vertex.", 7) == 0) {
1609 _mesa_error(ctx
, GL_INVALID_VALUE
,
1610 "glGetProgramRegisterfvMESA(registerName)");
1614 case GL_FRAGMENT_PROGRAM_ARB
:
1615 if (!ctx
->Extensions
.ARB_fragment_program
) {
1616 _mesa_error(ctx
, GL_INVALID_ENUM
,
1617 "glGetProgramRegisterfvMESA(target)");
1620 if (!ctx
->FragmentProgram
._Enabled
) {
1621 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1622 "glGetProgramRegisterfvMESA");
1627 case GL_FRAGMENT_PROGRAM_NV
:
1628 if (!ctx
->Extensions
.NV_fragment_program
) {
1629 _mesa_error(ctx
, GL_INVALID_ENUM
,
1630 "glGetProgramRegisterfvMESA(target)");
1633 if (!ctx
->FragmentProgram
._Enabled
) {
1634 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1635 "glGetProgramRegisterfvMESA");
1638 if (reg
[0] == 'R') {
1640 GLint i
= _mesa_atoi(reg
+ 1);
1641 if (i
>= (GLint
)ctx
->Const
.FragmentProgram
.MaxTemps
) {
1642 _mesa_error(ctx
, GL_INVALID_VALUE
,
1643 "glGetProgramRegisterfvMESA(registerName)");
1646 COPY_4V(v
, ctx
->FragmentProgram
.Machine
.Temporaries
[i
]);
1648 else if (reg
[0] == 'f' && reg
[1] == '[') {
1649 /* Fragment input attribute */
1651 for (i
= 0; i
< ctx
->Const
.FragmentProgram
.MaxAttribs
; i
++) {
1652 const char *name
= _mesa_nv_fragment_input_register_name(i
);
1653 if (_mesa_strncmp(reg
+ 2, name
, 4) == 0) {
1654 COPY_4V(v
, ctx
->FragmentProgram
.Machine
.Inputs
[i
]);
1658 _mesa_error(ctx
, GL_INVALID_VALUE
,
1659 "glGetProgramRegisterfvMESA(registerName)");
1662 else if (_mesa_strcmp(reg
, "o[COLR]") == 0) {
1663 /* Fragment output color */
1664 COPY_4V(v
, ctx
->FragmentProgram
.Machine
.Outputs
[FRAG_RESULT_COLR
]);
1666 else if (_mesa_strcmp(reg
, "o[COLH]") == 0) {
1667 /* Fragment output color */
1668 COPY_4V(v
, ctx
->FragmentProgram
.Machine
.Outputs
[FRAG_RESULT_COLH
]);
1670 else if (_mesa_strcmp(reg
, "o[DEPR]") == 0) {
1671 /* Fragment output depth */
1672 COPY_4V(v
, ctx
->FragmentProgram
.Machine
.Outputs
[FRAG_RESULT_DEPR
]);
1675 /* try user-defined identifiers */
1676 const GLfloat
*value
= _mesa_lookup_parameter_value(
1677 ctx
->FragmentProgram
.Current
->Parameters
, -1, reg
);
1682 _mesa_error(ctx
, GL_INVALID_VALUE
,
1683 "glGetProgramRegisterfvMESA(registerName)");
1689 _mesa_error(ctx
, GL_INVALID_ENUM
,
1690 "glGetProgramRegisterfvMESA(target)");