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"
46 make_state_string(const GLint stateTokens
[6]);
49 /**********************************************************************/
50 /* Utility functions */
51 /**********************************************************************/
54 /* A pointer to this dummy program is put into the hash table when
55 * glGenPrograms is called.
57 struct program _mesa_DummyProgram
;
61 * Init context's vertex/fragment program state
64 _mesa_init_program(GLcontext
*ctx
)
68 ctx
->Program
.ErrorPos
= -1;
69 ctx
->Program
.ErrorString
= _mesa_strdup("");
71 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
72 ctx
->VertexProgram
.Enabled
= GL_FALSE
;
73 ctx
->VertexProgram
.PointSizeEnabled
= GL_FALSE
;
74 ctx
->VertexProgram
.TwoSideEnabled
= GL_FALSE
;
75 ctx
->VertexProgram
.Current
= (struct vertex_program
*) ctx
->Shared
->DefaultVertexProgram
;
76 assert(ctx
->VertexProgram
.Current
);
77 ctx
->VertexProgram
.Current
->Base
.RefCount
++;
78 for (i
= 0; i
< MAX_NV_VERTEX_PROGRAM_PARAMS
/ 4; i
++) {
79 ctx
->VertexProgram
.TrackMatrix
[i
] = GL_NONE
;
80 ctx
->VertexProgram
.TrackMatrixTransform
[i
] = GL_IDENTITY_NV
;
84 #if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program
85 ctx
->FragmentProgram
.Enabled
= GL_FALSE
;
86 ctx
->FragmentProgram
.Current
= (struct fragment_program
*) ctx
->Shared
->DefaultFragmentProgram
;
87 assert(ctx
->FragmentProgram
.Current
);
88 ctx
->FragmentProgram
.Current
->Base
.RefCount
++;
91 /* XXX probably move this stuff */
92 #if FEATURE_ATI_fragment_shader
93 ctx
->ATIFragmentShader
.Enabled
= GL_FALSE
;
94 ctx
->ATIFragmentShader
.Current
= (struct ati_fragment_shader
*) ctx
->Shared
->DefaultFragmentShader
;
95 assert(ctx
->ATIFragmentShader
.Current
);
96 ctx
->ATIFragmentShader
.Current
->RefCount
++;
102 * Free a context's vertex/fragment program state
105 _mesa_free_program_data(GLcontext
*ctx
)
107 #if FEATURE_NV_vertex_program
108 if (ctx
->VertexProgram
.Current
) {
109 ctx
->VertexProgram
.Current
->Base
.RefCount
--;
110 if (ctx
->VertexProgram
.Current
->Base
.RefCount
<= 0)
111 ctx
->Driver
.DeleteProgram(ctx
, &(ctx
->VertexProgram
.Current
->Base
));
114 #if FEATURE_NV_fragment_program
115 if (ctx
->FragmentProgram
.Current
) {
116 ctx
->FragmentProgram
.Current
->Base
.RefCount
--;
117 if (ctx
->FragmentProgram
.Current
->Base
.RefCount
<= 0)
118 ctx
->Driver
.DeleteProgram(ctx
, &(ctx
->FragmentProgram
.Current
->Base
));
121 /* XXX probably move this stuff */
122 #if FEATURE_ATI_fragment_shader
123 if (ctx
->ATIFragmentShader
.Current
) {
124 ctx
->ATIFragmentShader
.Current
->RefCount
--;
125 if (ctx
->ATIFragmentShader
.Current
->RefCount
<= 0) {
126 _mesa_free(ctx
->ATIFragmentShader
.Current
);
130 _mesa_free((void *) ctx
->Program
.ErrorString
);
137 * Set the vertex/fragment program error state (position and error string).
138 * This is generally called from within the parsers.
141 _mesa_set_program_error(GLcontext
*ctx
, GLint pos
, const char *string
)
143 ctx
->Program
.ErrorPos
= pos
;
144 _mesa_free((void *) ctx
->Program
.ErrorString
);
147 ctx
->Program
.ErrorString
= _mesa_strdup(string
);
152 * Find the line number and column for 'pos' within 'string'.
153 * Return a copy of the line which contains 'pos'. Free the line with
155 * \param string the program string
156 * \param pos the position within the string
157 * \param line returns the line number corresponding to 'pos'.
158 * \param col returns the column number corresponding to 'pos'.
159 * \return copy of the line containing 'pos'.
162 _mesa_find_line_column(const GLubyte
*string
, const GLubyte
*pos
,
163 GLint
*line
, GLint
*col
)
165 const GLubyte
*lineStart
= string
;
166 const GLubyte
*p
= string
;
173 if (*p
== (GLubyte
) '\n') {
180 *col
= (pos
- lineStart
) + 1;
182 /* return copy of this line */
183 while (*p
!= 0 && *p
!= '\n')
186 s
= (GLubyte
*) _mesa_malloc(len
+ 1);
187 _mesa_memcpy(s
, lineStart
, len
);
195 * Initialize a new vertex/fragment program object.
197 static struct program
*
198 _mesa_init_program_struct( GLcontext
*ctx
, struct program
*prog
,
199 GLenum target
, GLuint id
)
204 prog
->Target
= target
;
205 prog
->Resident
= GL_TRUE
;
214 * Initialize a new fragment program object.
217 _mesa_init_fragment_program( GLcontext
*ctx
, struct fragment_program
*prog
,
218 GLenum target
, GLuint id
)
221 return _mesa_init_program_struct( ctx
, &prog
->Base
, target
, id
);
228 * Initialize a new vertex program object.
231 _mesa_init_vertex_program( GLcontext
*ctx
, struct vertex_program
*prog
,
232 GLenum target
, GLuint id
)
235 return _mesa_init_program_struct( ctx
, &prog
->Base
, target
, id
);
242 * Allocate and initialize a new fragment/vertex program object but
243 * don't put it into the program hash table. Called via
244 * ctx->Driver.NewProgram. May be overridden (ie. replaced) by a
245 * device driver function to implement OO deriviation with additional
246 * types not understood by this function.
249 * \param id program id/number
250 * \param target program target/type
251 * \return pointer to new program object
254 _mesa_new_program(GLcontext
*ctx
, GLenum target
, GLuint id
)
257 case GL_VERTEX_PROGRAM_ARB
: /* == GL_VERTEX_PROGRAM_NV */
258 return _mesa_init_vertex_program( ctx
, CALLOC_STRUCT(vertex_program
),
260 case GL_FRAGMENT_PROGRAM_NV
:
261 case GL_FRAGMENT_PROGRAM_ARB
:
262 return _mesa_init_fragment_program( ctx
, CALLOC_STRUCT(fragment_program
),
265 _mesa_problem(ctx
, "bad target in _mesa_new_program");
272 * Delete a program and remove it from the hash table, ignoring the
274 * Called via ctx->Driver.DeleteProgram. May be wrapped (OO deriviation)
275 * by a device driver function.
278 _mesa_delete_program(GLcontext
*ctx
, struct program
*prog
)
284 _mesa_free(prog
->String
);
286 if (prog
->Instructions
) {
288 for (i
= 0; i
< prog
->NumInstructions
; i
++) {
289 if (prog
->Instructions
[i
].Data
)
290 _mesa_free(prog
->Instructions
[i
].Data
);
292 _mesa_free(prog
->Instructions
);
295 if (prog
->Parameters
)
296 _mesa_free_parameter_list(prog
->Parameters
);
303 /**********************************************************************/
304 /* Program parameter functions */
305 /**********************************************************************/
307 struct program_parameter_list
*
308 _mesa_new_parameter_list(void)
310 return (struct program_parameter_list
*)
311 _mesa_calloc(sizeof(struct program_parameter_list
));
316 * Free a parameter list and all its parameters
319 _mesa_free_parameter_list(struct program_parameter_list
*paramList
)
321 _mesa_free_parameters(paramList
);
322 _mesa_free(paramList
->Parameters
);
323 if (paramList
->ParameterValues
)
324 ALIGN_FREE(paramList
->ParameterValues
);
325 _mesa_free(paramList
);
330 * Free all the parameters in the given list, but don't free the
331 * paramList structure itself.
334 _mesa_free_parameters(struct program_parameter_list
*paramList
)
337 for (i
= 0; i
< paramList
->NumParameters
; i
++) {
338 if (paramList
->Parameters
[i
].Name
)
339 _mesa_free((void *) paramList
->Parameters
[i
].Name
);
341 paramList
->NumParameters
= 0;
346 * Helper function used by the functions below.
347 * \return index of new parameter in the list, or -1 if error (out of mem)
350 add_parameter(struct program_parameter_list
*paramList
,
351 const char *name
, const GLfloat values
[4],
352 enum register_file type
)
354 const GLuint n
= paramList
->NumParameters
;
356 if (n
== paramList
->Size
) {
359 paramList
->Size
*= 2;
360 if (!paramList
->Size
)
363 paramList
->Parameters
= (struct program_parameter
*)
364 _mesa_realloc(paramList
->Parameters
,
365 n
* sizeof(struct program_parameter
),
366 paramList
->Size
* sizeof(struct program_parameter
));
368 tmp
= paramList
->ParameterValues
;
369 paramList
->ParameterValues
= ALIGN_MALLOC(paramList
->Size
* 4 * sizeof(GLfloat
), 16);
371 _mesa_memcpy(paramList
->ParameterValues
, tmp
,
372 n
* 4 * sizeof(GLfloat
));
377 if (!paramList
->Parameters
||
378 !paramList
->ParameterValues
) {
380 paramList
->NumParameters
= 0;
385 paramList
->NumParameters
= n
+ 1;
387 _mesa_memset(¶mList
->Parameters
[n
], 0,
388 sizeof(struct program_parameter
));
390 paramList
->Parameters
[n
].Name
= name
? _mesa_strdup(name
) : NULL
;
391 paramList
->Parameters
[n
].Type
= type
;
393 COPY_4V(paramList
->ParameterValues
[n
], values
);
400 * Add a new named program parameter (Ex: NV_fragment_program DEFINE statement)
401 * \return index of the new entry in the parameter list
404 _mesa_add_named_parameter(struct program_parameter_list
*paramList
,
405 const char *name
, const GLfloat values
[4])
407 return add_parameter(paramList
, name
, values
, PROGRAM_NAMED_PARAM
);
412 * Add a new unnamed constant to the parameter list.
413 * \param paramList - the parameter list
414 * \param values - four float values
415 * \return index of the new parameter.
418 _mesa_add_named_constant(struct program_parameter_list
*paramList
,
419 const char *name
, const GLfloat values
[4])
421 return add_parameter(paramList
, name
, values
, PROGRAM_CONSTANT
);
426 * Add a new unnamed constant to the parameter list.
427 * \param paramList - the parameter list
428 * \param values - four float values
429 * \return index of the new parameter.
432 _mesa_add_unnamed_constant(struct program_parameter_list
*paramList
,
433 const GLfloat values
[4])
435 return add_parameter(paramList
, NULL
, values
, PROGRAM_CONSTANT
);
440 * Add a new state reference to the parameter list.
441 * \param paramList - the parameter list
442 * \param state - an array of 6 state tokens
444 * \return index of the new parameter.
447 _mesa_add_state_reference(struct program_parameter_list
*paramList
,
448 const GLint
*stateTokens
)
450 /* XXX we should probably search the current parameter list to see if
451 * the new state reference is already present.
454 const char *name
= make_state_string(stateTokens
);
456 index
= add_parameter(paramList
, name
, NULL
, PROGRAM_STATE_VAR
);
459 for (i
= 0; i
< 6; i
++)
460 paramList
->Parameters
[index
].StateIndexes
[i
]
461 = (enum state_index
) stateTokens
[i
];
469 * Lookup a parameter value by name in the given parameter list.
470 * \return pointer to the float[4] values.
473 _mesa_lookup_parameter_value(struct program_parameter_list
*paramList
,
474 GLsizei nameLen
, const char *name
)
482 /* name is null-terminated */
483 for (i
= 0; i
< paramList
->NumParameters
; i
++) {
484 if (paramList
->Parameters
[i
].Name
&&
485 _mesa_strcmp(paramList
->Parameters
[i
].Name
, name
) == 0)
486 return paramList
->ParameterValues
[i
];
490 /* name is not null-terminated, use nameLen */
491 for (i
= 0; i
< paramList
->NumParameters
; i
++) {
492 if (paramList
->Parameters
[i
].Name
&&
493 _mesa_strncmp(paramList
->Parameters
[i
].Name
, name
, nameLen
) == 0
494 && _mesa_strlen(paramList
->Parameters
[i
].Name
) == (size_t)nameLen
)
495 return paramList
->ParameterValues
[i
];
503 * Lookup a parameter index by name in the given parameter list.
504 * \return index of parameter in the list.
507 _mesa_lookup_parameter_index(struct program_parameter_list
*paramList
,
508 GLsizei nameLen
, const char *name
)
516 /* name is null-terminated */
517 for (i
= 0; i
< (GLint
) paramList
->NumParameters
; i
++) {
518 if (paramList
->Parameters
[i
].Name
&&
519 _mesa_strcmp(paramList
->Parameters
[i
].Name
, name
) == 0)
524 /* name is not null-terminated, use nameLen */
525 for (i
= 0; i
< (GLint
) paramList
->NumParameters
; i
++) {
526 if (paramList
->Parameters
[i
].Name
&&
527 _mesa_strncmp(paramList
->Parameters
[i
].Name
, name
, nameLen
) == 0
528 && _mesa_strlen(paramList
->Parameters
[i
].Name
) == (size_t)nameLen
)
537 * Use the list of tokens in the state[] array to find global GL state
538 * and return it in <value>. Usually, four values are returned in <value>
539 * but matrix queries may return as many as 16 values.
540 * This function is used for ARB vertex/fragment programs.
541 * The program parser will produce the state[] values.
544 _mesa_fetch_state(GLcontext
*ctx
, const enum state_index state
[],
550 /* state[1] is either 0=front or 1=back side */
551 const GLuint face
= (GLuint
) state
[1];
552 /* state[2] is the material attribute */
556 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_AMBIENT
]);
558 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_AMBIENT
]);
562 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_DIFFUSE
]);
564 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_DIFFUSE
]);
568 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_SPECULAR
]);
570 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_SPECULAR
]);
574 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_EMISSION
]);
576 COPY_4V(value
, ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_EMISSION
]);
578 case STATE_SHININESS
:
580 value
[0] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_SHININESS
][0];
582 value
[0] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_SHININESS
][0];
588 _mesa_problem(ctx
, "Invalid material state in fetch_state");
594 /* state[1] is the light number */
595 const GLuint ln
= (GLuint
) state
[1];
596 /* state[2] is the light attribute */
599 COPY_4V(value
, ctx
->Light
.Light
[ln
].Ambient
);
602 COPY_4V(value
, ctx
->Light
.Light
[ln
].Diffuse
);
605 COPY_4V(value
, ctx
->Light
.Light
[ln
].Specular
);
608 COPY_4V(value
, ctx
->Light
.Light
[ln
].EyePosition
);
610 case STATE_ATTENUATION
:
611 value
[0] = ctx
->Light
.Light
[ln
].ConstantAttenuation
;
612 value
[1] = ctx
->Light
.Light
[ln
].LinearAttenuation
;
613 value
[2] = ctx
->Light
.Light
[ln
].QuadraticAttenuation
;
614 value
[3] = ctx
->Light
.Light
[ln
].SpotExponent
;
616 case STATE_SPOT_DIRECTION
:
617 COPY_3V(value
, ctx
->Light
.Light
[ln
].EyeDirection
);
618 value
[3] = ctx
->Light
.Light
[ln
]._CosCutoff
;
622 GLfloat eye_z
[] = {0, 0, 1};
624 /* Compute infinite half angle vector:
625 * half-vector = light_position + (0, 0, 1)
626 * and then normalize. w = 0
628 * light.EyePosition.w should be 0 for infinite lights.
630 ADD_3V(value
, eye_z
, ctx
->Light
.Light
[ln
].EyePosition
);
631 NORMALIZE_3FV(value
);
635 case STATE_POSITION_NORMALIZED
:
636 COPY_4V(value
, ctx
->Light
.Light
[ln
].EyePosition
);
637 NORMALIZE_3FV( value
);
640 _mesa_problem(ctx
, "Invalid light state in fetch_state");
644 case STATE_LIGHTMODEL_AMBIENT
:
645 COPY_4V(value
, ctx
->Light
.Model
.Ambient
);
647 case STATE_LIGHTMODEL_SCENECOLOR
:
651 for (i
= 0; i
< 3; i
++) {
652 value
[i
] = ctx
->Light
.Model
.Ambient
[i
]
653 * ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_AMBIENT
][i
]
654 + ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_EMISSION
][i
];
656 value
[3] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_DIFFUSE
][3];
661 for (i
= 0; i
< 3; i
++) {
662 value
[i
] = ctx
->Light
.Model
.Ambient
[i
]
663 * ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_AMBIENT
][i
]
664 + ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_EMISSION
][i
];
666 value
[3] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_BACK_DIFFUSE
][3];
669 case STATE_LIGHTPROD
:
671 const GLuint ln
= (GLuint
) state
[1];
672 const GLuint face
= (GLuint
) state
[2];
674 ASSERT(face
== 0 || face
== 1);
677 for (i
= 0; i
< 3; i
++) {
678 value
[i
] = ctx
->Light
.Light
[ln
].Ambient
[i
] *
679 ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_AMBIENT
+face
][i
];
681 /* [3] = material alpha */
682 value
[3] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_DIFFUSE
+face
][3];
685 for (i
= 0; i
< 3; i
++) {
686 value
[i
] = ctx
->Light
.Light
[ln
].Diffuse
[i
] *
687 ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_DIFFUSE
+face
][i
];
689 /* [3] = material alpha */
690 value
[3] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_DIFFUSE
+face
][3];
693 for (i
= 0; i
< 3; i
++) {
694 value
[i
] = ctx
->Light
.Light
[ln
].Specular
[i
] *
695 ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_SPECULAR
+face
][i
];
697 /* [3] = material alpha */
698 value
[3] = ctx
->Light
.Material
.Attrib
[MAT_ATTRIB_FRONT_DIFFUSE
+face
][3];
701 _mesa_problem(ctx
, "Invalid lightprod state in fetch_state");
707 /* state[1] is the texture unit */
708 const GLuint unit
= (GLuint
) state
[1];
709 /* state[2] is the texgen attribute */
711 case STATE_TEXGEN_EYE_S
:
712 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].EyePlaneS
);
714 case STATE_TEXGEN_EYE_T
:
715 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].EyePlaneT
);
717 case STATE_TEXGEN_EYE_R
:
718 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].EyePlaneR
);
720 case STATE_TEXGEN_EYE_Q
:
721 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].EyePlaneQ
);
723 case STATE_TEXGEN_OBJECT_S
:
724 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].ObjectPlaneS
);
726 case STATE_TEXGEN_OBJECT_T
:
727 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].ObjectPlaneT
);
729 case STATE_TEXGEN_OBJECT_R
:
730 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].ObjectPlaneR
);
732 case STATE_TEXGEN_OBJECT_Q
:
733 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].ObjectPlaneQ
);
736 _mesa_problem(ctx
, "Invalid texgen state in fetch_state");
740 case STATE_TEXENV_COLOR
:
742 /* state[1] is the texture unit */
743 const GLuint unit
= (GLuint
) state
[1];
744 COPY_4V(value
, ctx
->Texture
.Unit
[unit
].EnvColor
);
747 case STATE_FOG_COLOR
:
748 COPY_4V(value
, ctx
->Fog
.Color
);
750 case STATE_FOG_PARAMS
:
751 value
[0] = ctx
->Fog
.Density
;
752 value
[1] = ctx
->Fog
.Start
;
753 value
[2] = ctx
->Fog
.End
;
754 value
[3] = 1.0F
/ (ctx
->Fog
.End
- ctx
->Fog
.Start
);
756 case STATE_CLIPPLANE
:
758 const GLuint plane
= (GLuint
) state
[1];
759 COPY_4V(value
, ctx
->Transform
.EyeUserPlane
[plane
]);
762 case STATE_POINT_SIZE
:
763 value
[0] = ctx
->Point
.Size
;
764 value
[1] = ctx
->Point
.MinSize
;
765 value
[2] = ctx
->Point
.MaxSize
;
766 value
[3] = ctx
->Point
.Threshold
;
768 case STATE_POINT_ATTENUATION
:
769 value
[0] = ctx
->Point
.Params
[0];
770 value
[1] = ctx
->Point
.Params
[1];
771 value
[2] = ctx
->Point
.Params
[2];
776 /* state[1] = modelview, projection, texture, etc. */
777 /* state[2] = which texture matrix or program matrix */
778 /* state[3] = first column to fetch */
779 /* state[4] = last column to fetch */
780 /* state[5] = transpose, inverse or invtrans */
782 const GLmatrix
*matrix
;
783 const enum state_index mat
= state
[1];
784 const GLuint index
= (GLuint
) state
[2];
785 const GLuint first
= (GLuint
) state
[3];
786 const GLuint last
= (GLuint
) state
[4];
787 const enum state_index modifier
= state
[5];
790 if (mat
== STATE_MODELVIEW
) {
791 matrix
= ctx
->ModelviewMatrixStack
.Top
;
793 else if (mat
== STATE_PROJECTION
) {
794 matrix
= ctx
->ProjectionMatrixStack
.Top
;
796 else if (mat
== STATE_MVP
) {
797 matrix
= &ctx
->_ModelProjectMatrix
;
799 else if (mat
== STATE_TEXTURE
) {
800 matrix
= ctx
->TextureMatrixStack
[index
].Top
;
802 else if (mat
== STATE_PROGRAM
) {
803 matrix
= ctx
->ProgramMatrixStack
[index
].Top
;
806 _mesa_problem(ctx
, "Bad matrix name in _mesa_fetch_state()");
809 if (modifier
== STATE_MATRIX_INVERSE
||
810 modifier
== STATE_MATRIX_INVTRANS
) {
811 /* Be sure inverse is up to date:
813 _math_matrix_analyse( (GLmatrix
*) matrix
);
819 if (modifier
== STATE_MATRIX_TRANSPOSE
||
820 modifier
== STATE_MATRIX_INVTRANS
) {
821 for (i
= 0, row
= first
; row
<= last
; row
++) {
822 value
[i
++] = m
[row
* 4 + 0];
823 value
[i
++] = m
[row
* 4 + 1];
824 value
[i
++] = m
[row
* 4 + 2];
825 value
[i
++] = m
[row
* 4 + 3];
829 for (i
= 0, row
= first
; row
<= last
; row
++) {
830 value
[i
++] = m
[row
+ 0];
831 value
[i
++] = m
[row
+ 4];
832 value
[i
++] = m
[row
+ 8];
833 value
[i
++] = m
[row
+ 12];
838 case STATE_DEPTH_RANGE
:
839 value
[0] = ctx
->Viewport
.Near
; /* near */
840 value
[1] = ctx
->Viewport
.Far
; /* far */
841 value
[2] = ctx
->Viewport
.Far
- ctx
->Viewport
.Near
; /* far - near */
844 case STATE_FRAGMENT_PROGRAM
:
846 /* state[1] = {STATE_ENV, STATE_LOCAL} */
847 /* state[2] = parameter index */
848 const int idx
= (int) state
[2];
851 COPY_4V(value
, ctx
->FragmentProgram
.Parameters
[idx
]);
854 COPY_4V(value
, ctx
->FragmentProgram
.Current
->Base
.LocalParams
[idx
]);
857 _mesa_problem(ctx
, "Bad state switch in _mesa_fetch_state()");
863 case STATE_VERTEX_PROGRAM
:
865 /* state[1] = {STATE_ENV, STATE_LOCAL} */
866 /* state[2] = parameter index */
867 const int idx
= (int) state
[2];
870 COPY_4V(value
, ctx
->VertexProgram
.Parameters
[idx
]);
873 COPY_4V(value
, ctx
->VertexProgram
.Current
->Base
.LocalParams
[idx
]);
876 _mesa_problem(ctx
, "Bad state switch in _mesa_fetch_state()");
885 case STATE_NORMAL_SCALE
:
886 ASSIGN_4V(value
, ctx
->_ModelViewInvScale
, 0, 0, 1);
889 _mesa_problem(ctx
, "Bad state switch in _mesa_fetch_state()");
896 _mesa_problem(ctx
, "Invalid state in _mesa_fetch_state");
903 append(char *dst
, const char *src
)
913 append_token(char *dst
, enum state_index k
)
917 append(dst
, "material.");
920 append(dst
, "light");
922 case STATE_LIGHTMODEL_AMBIENT
:
923 append(dst
, "lightmodel.ambient");
925 case STATE_LIGHTMODEL_SCENECOLOR
:
927 case STATE_LIGHTPROD
:
928 append(dst
, "lightprod");
931 append(dst
, "texgen");
933 case STATE_FOG_COLOR
:
934 append(dst
, "fog.color");
936 case STATE_FOG_PARAMS
:
937 append(dst
, "fog.params");
939 case STATE_CLIPPLANE
:
942 case STATE_POINT_SIZE
:
943 append(dst
, "point.size");
945 case STATE_POINT_ATTENUATION
:
946 append(dst
, "point.attenuation");
949 append(dst
, "matrix.");
951 case STATE_MODELVIEW
:
952 append(dst
, "modelview");
954 case STATE_PROJECTION
:
955 append(dst
, "projection");
961 append(dst
, "texture");
964 append(dst
, "program");
966 case STATE_MATRIX_INVERSE
:
967 append(dst
, ".inverse");
969 case STATE_MATRIX_TRANSPOSE
:
970 append(dst
, ".transpose");
972 case STATE_MATRIX_INVTRANS
:
973 append(dst
, ".invtrans");
976 append(dst
, "ambient");
979 append(dst
, "diffuse");
982 append(dst
, "specular");
985 append(dst
, "emission");
987 case STATE_SHININESS
:
988 append(dst
, "shininess");
994 append(dst
, ".position");
996 case STATE_ATTENUATION
:
997 append(dst
, ".attenuation");
999 case STATE_SPOT_DIRECTION
:
1000 append(dst
, ".spot.direction");
1002 case STATE_TEXGEN_EYE_S
:
1003 append(dst
, "eye.s");
1005 case STATE_TEXGEN_EYE_T
:
1006 append(dst
, "eye.t");
1008 case STATE_TEXGEN_EYE_R
:
1009 append(dst
, "eye.r");
1011 case STATE_TEXGEN_EYE_Q
:
1012 append(dst
, "eye.q");
1014 case STATE_TEXGEN_OBJECT_S
:
1015 append(dst
, "object.s");
1017 case STATE_TEXGEN_OBJECT_T
:
1018 append(dst
, "object.t");
1020 case STATE_TEXGEN_OBJECT_R
:
1021 append(dst
, "object.r");
1023 case STATE_TEXGEN_OBJECT_Q
:
1024 append(dst
, "object.q");
1026 case STATE_TEXENV_COLOR
:
1027 append(dst
, "texenv");
1029 case STATE_DEPTH_RANGE
:
1030 append(dst
, "depth.range");
1032 case STATE_VERTEX_PROGRAM
:
1033 case STATE_FRAGMENT_PROGRAM
:
1039 append(dst
, "local");
1041 case STATE_INTERNAL
:
1042 case STATE_NORMAL_SCALE
:
1043 case STATE_POSITION_NORMALIZED
:
1044 append(dst
, "(internal)");
1052 append_face(char *dst
, GLint face
)
1055 append(dst
, "front.");
1057 append(dst
, "back.");
1061 append_index(char *dst
, GLint index
)
1064 _mesa_sprintf(s
, "[%d].", index
);
1069 * Make a string from the given state vector.
1070 * For example, return "state.matrix.texture[2].inverse".
1073 make_state_string(const GLint state
[6])
1075 char str
[1000] = "";
1078 append(str
, "state.");
1079 append_token(str
, state
[0]);
1082 case STATE_MATERIAL
:
1083 append_face(str
, state
[1]);
1084 append_token(str
, state
[2]);
1087 append(str
, "light");
1088 append_index(str
, state
[1]); /* light number [i]. */
1089 append_token(str
, state
[2]); /* coefficients */
1091 case STATE_LIGHTMODEL_AMBIENT
:
1092 append(str
, "lightmodel.ambient");
1094 case STATE_LIGHTMODEL_SCENECOLOR
:
1095 if (state
[1] == 0) {
1096 append(str
, "lightmodel.front.scenecolor");
1099 append(str
, "lightmodel.back.scenecolor");
1102 case STATE_LIGHTPROD
:
1103 append_index(str
, state
[1]); /* light number [i]. */
1104 append_face(str
, state
[2]);
1105 append_token(str
, state
[3]);
1108 append_index(str
, state
[1]); /* tex unit [i] */
1109 append_token(str
, state
[2]); /* plane coef */
1111 case STATE_TEXENV_COLOR
:
1112 append_index(str
, state
[1]); /* tex unit [i] */
1113 append(str
, "color");
1115 case STATE_FOG_COLOR
:
1116 case STATE_FOG_PARAMS
:
1118 case STATE_CLIPPLANE
:
1119 append_index(str
, state
[1]); /* plane [i] */
1120 append(str
, "plane");
1122 case STATE_POINT_SIZE
:
1123 case STATE_POINT_ATTENUATION
:
1127 /* state[1] = modelview, projection, texture, etc. */
1128 /* state[2] = which texture matrix or program matrix */
1129 /* state[3] = first column to fetch */
1130 /* state[4] = last column to fetch */
1131 /* state[5] = transpose, inverse or invtrans */
1132 const enum state_index mat
= state
[1];
1133 const GLuint index
= (GLuint
) state
[2];
1134 const GLuint first
= (GLuint
) state
[3];
1135 const GLuint last
= (GLuint
) state
[4];
1136 const enum state_index modifier
= state
[5];
1137 append_token(str
, mat
);
1139 append_index(str
, index
);
1141 append_token(str
, modifier
);
1143 _mesa_sprintf(tmp
, ".row[%d]", first
);
1145 _mesa_sprintf(tmp
, ".row[%d..%d]", first
, last
);
1149 case STATE_DEPTH_RANGE
:
1151 case STATE_FRAGMENT_PROGRAM
:
1152 case STATE_VERTEX_PROGRAM
:
1153 /* state[1] = {STATE_ENV, STATE_LOCAL} */
1154 /* state[2] = parameter index */
1155 append_token(str
, state
[1]);
1156 append_index(str
, state
[2]);
1158 case STATE_INTERNAL
:
1161 _mesa_problem(NULL
, "Invalid state in maka_state_string");
1165 return _mesa_strdup(str
);
1170 * Loop over all the parameters in a parameter list. If the parameter
1171 * is a GL state reference, look up the current value of that state
1172 * variable and put it into the parameter's Value[4] array.
1173 * This would be called at glBegin time when using a fragment program.
1176 _mesa_load_state_parameters(GLcontext
*ctx
,
1177 struct program_parameter_list
*paramList
)
1184 for (i
= 0; i
< paramList
->NumParameters
; i
++) {
1185 if (paramList
->Parameters
[i
].Type
== PROGRAM_STATE_VAR
) {
1186 _mesa_fetch_state(ctx
,
1187 paramList
->Parameters
[i
].StateIndexes
,
1188 paramList
->ParameterValues
[i
]);
1195 * Basic info about each instruction
1197 struct instruction_info
1199 enum prog_opcode Opcode
;
1206 * \note Opcode should equal array index!
1208 static const struct instruction_info InstInfo
[MAX_OPCODE
] = {
1209 { OPCODE_ABS
, "ABS", 1 },
1210 { OPCODE_ADD
, "ADD", 2 },
1211 { OPCODE_ARA
, "ARA", 1 },
1212 { OPCODE_ARL
, "ARL", 1 },
1213 { OPCODE_ARL_NV
, "ARL", 1 },
1214 { OPCODE_ARR
, "ARL", 1 },
1215 { OPCODE_BRA
, "BRA", 1 },
1216 { OPCODE_CAL
, "CAL", 1 },
1217 { OPCODE_CMP
, "CMP", 3 },
1218 { OPCODE_COS
, "COS", 1 },
1219 { OPCODE_DDX
, "DDX", 1 },
1220 { OPCODE_DDY
, "DDY", 1 },
1221 { OPCODE_DP3
, "DP3", 2 },
1222 { OPCODE_DP4
, "DP4", 2 },
1223 { OPCODE_DPH
, "DPH", 2 },
1224 { OPCODE_DST
, "DST", 2 },
1225 { OPCODE_END
, "END", 0 },
1226 { OPCODE_EX2
, "EX2", 1 },
1227 { OPCODE_EXP
, "EXP", 1 },
1228 { OPCODE_FLR
, "FLR", 1 },
1229 { OPCODE_FRC
, "FRC", 1 },
1230 { OPCODE_KIL
, "KIL", 1 },
1231 { OPCODE_KIL_NV
, "KIL", 0 },
1232 { OPCODE_LG2
, "LG2", 1 },
1233 { OPCODE_LIT
, "LIT", 1 },
1234 { OPCODE_LOG
, "LOG", 1 },
1235 { OPCODE_LRP
, "LRP", 3 },
1236 { OPCODE_MAD
, "MAD", 3 },
1237 { OPCODE_MAX
, "MAX", 2 },
1238 { OPCODE_MIN
, "MIN", 2 },
1239 { OPCODE_MOV
, "MOV", 1 },
1240 { OPCODE_MUL
, "MUL", 2 },
1241 { OPCODE_PK2H
, "PK2H", 1 },
1242 { OPCODE_PK2US
, "PK2US", 1 },
1243 { OPCODE_PK4B
, "PK4B", 1 },
1244 { OPCODE_PK4UB
, "PK4UB", 1 },
1245 { OPCODE_POW
, "POW", 2 },
1246 { OPCODE_POPA
, "POPA", 0 },
1247 { OPCODE_PRINT
, "PRINT", 1 },
1248 { OPCODE_PUSHA
, "PUSHA", 0 },
1249 { OPCODE_RCC
, "RCC", 1 },
1250 { OPCODE_RCP
, "RCP", 1 },
1251 { OPCODE_RET
, "RET", 1 },
1252 { OPCODE_RFL
, "RFL", 1 },
1253 { OPCODE_RSQ
, "RSQ", 1 },
1254 { OPCODE_SCS
, "SCS", 1 },
1255 { OPCODE_SEQ
, "SEQ", 2 },
1256 { OPCODE_SFL
, "SFL", 0 },
1257 { OPCODE_SGE
, "SGE", 2 },
1258 { OPCODE_SGT
, "SGT", 2 },
1259 { OPCODE_SIN
, "SIN", 1 },
1260 { OPCODE_SLE
, "SLE", 2 },
1261 { OPCODE_SLT
, "SLT", 2 },
1262 { OPCODE_SNE
, "SNE", 2 },
1263 { OPCODE_SSG
, "SSG", 1 },
1264 { OPCODE_STR
, "STR", 0 },
1265 { OPCODE_SUB
, "SUB", 2 },
1266 { OPCODE_SWZ
, "SWZ", 1 },
1267 { OPCODE_TEX
, "TEX", 1 },
1268 { OPCODE_TXB
, "TXB", 1 },
1269 { OPCODE_TXD
, "TXD", 3 },
1270 { OPCODE_TXL
, "TXL", 1 },
1271 { OPCODE_TXP
, "TXP", 1 },
1272 { OPCODE_TXP_NV
, "TXP", 1 },
1273 { OPCODE_UP2H
, "UP2H", 1 },
1274 { OPCODE_UP2US
, "UP2US", 1 },
1275 { OPCODE_UP4B
, "UP4B", 1 },
1276 { OPCODE_UP4UB
, "UP4UB", 1 },
1277 { OPCODE_X2D
, "X2D", 3 },
1278 { OPCODE_XPD
, "XPD", 2 }
1283 * Return the number of src registers for the given instruction/opcode.
1286 _mesa_num_inst_src_regs(enum prog_opcode opcode
)
1290 for (i
= 0; i
< MAX_OPCODE
; i
++) {
1291 ASSERT(i
== InstInfo
[i
].Opcode
);
1294 for (i
= 0; i
< MAX_OPCODE
; i
++) {
1295 if (InstInfo
[i
].Opcode
== opcode
) {
1296 return InstInfo
[i
].NumSrcRegs
;
1299 _mesa_problem(NULL
, "invalid opcode in _mesa_num_inst_src_regs");
1305 * Return string name for given program opcode.
1308 _mesa_opcode_string(enum prog_opcode opcode
)
1310 ASSERT(opcode
< MAX_OPCODE
);
1311 return InstInfo
[opcode
].Name
;
1315 * Return string name for given program/register file.
1318 program_file_string(enum register_file f
)
1321 case PROGRAM_TEMPORARY
:
1323 case PROGRAM_LOCAL_PARAM
:
1325 case PROGRAM_ENV_PARAM
:
1327 case PROGRAM_STATE_VAR
:
1331 case PROGRAM_OUTPUT
:
1333 case PROGRAM_NAMED_PARAM
:
1335 case PROGRAM_CONSTANT
:
1337 case PROGRAM_WRITE_ONLY
:
1338 return "WRITE_ONLY";
1339 case PROGRAM_ADDRESS
:
1348 * Return a string representation of the given swizzle word.
1349 * If extended is true, use extended (comma-separated) format.
1352 swizzle_string(GLuint swizzle
, GLuint negateBase
, GLboolean extended
)
1354 static const char swz
[] = "xyzw01";
1358 if (!extended
&& swizzle
== SWIZZLE_NOOP
&& negateBase
== 0)
1359 return ""; /* no swizzle/negation */
1364 if (negateBase
& 0x1)
1366 s
[i
++] = swz
[GET_SWZ(swizzle
, 0)];
1372 if (negateBase
& 0x2)
1374 s
[i
++] = swz
[GET_SWZ(swizzle
, 1)];
1380 if (negateBase
& 0x4)
1382 s
[i
++] = swz
[GET_SWZ(swizzle
, 2)];
1388 if (negateBase
& 0x8)
1390 s
[i
++] = swz
[GET_SWZ(swizzle
, 3)];
1398 writemask_string(GLuint writeMask
)
1403 if (writeMask
== WRITEMASK_XYZW
)
1407 if (writeMask
& WRITEMASK_X
)
1409 if (writeMask
& WRITEMASK_Y
)
1411 if (writeMask
& WRITEMASK_Z
)
1413 if (writeMask
& WRITEMASK_W
)
1421 print_dst_reg(const struct prog_dst_register
*dstReg
)
1423 _mesa_printf(" %s[%d]%s",
1424 program_file_string(dstReg
->File
),
1426 writemask_string(dstReg
->WriteMask
));
1430 print_src_reg(const struct prog_src_register
*srcReg
)
1432 _mesa_printf("%s[%d]%s",
1433 program_file_string(srcReg
->File
),
1435 swizzle_string(srcReg
->Swizzle
,
1436 srcReg
->NegateBase
, GL_FALSE
));
1441 * Print a single vertex/fragment program instruction.
1444 _mesa_print_instruction(const struct prog_instruction
*inst
)
1446 switch (inst
->Opcode
) {
1448 _mesa_printf("PRINT '%s'", inst
->Data
);
1449 if (inst
->SrcReg
[0].File
!= PROGRAM_UNDEFINED
) {
1451 _mesa_printf("%s[%d]%s",
1452 program_file_string(inst
->SrcReg
[0].File
),
1453 inst
->SrcReg
[0].Index
,
1454 swizzle_string(inst
->SrcReg
[0].Swizzle
,
1455 inst
->SrcReg
[0].NegateBase
, GL_FALSE
));
1457 _mesa_printf(";\n");
1460 _mesa_printf("SWZ");
1461 if (inst
->SaturateMode
== SATURATE_ZERO_ONE
)
1462 _mesa_printf("_SAT");
1463 print_dst_reg(&inst
->DstReg
);
1464 _mesa_printf("%s[%d], %s;\n",
1465 program_file_string(inst
->SrcReg
[0].File
),
1466 inst
->SrcReg
[0].Index
,
1467 swizzle_string(inst
->SrcReg
[0].Swizzle
,
1468 inst
->SrcReg
[0].NegateBase
, GL_TRUE
));
1473 _mesa_printf("%s", _mesa_opcode_string(inst
->Opcode
));
1474 if (inst
->SaturateMode
== SATURATE_ZERO_ONE
)
1475 _mesa_printf("_SAT");
1477 print_dst_reg(&inst
->DstReg
);
1479 print_src_reg(&inst
->SrcReg
[0]);
1480 _mesa_printf(", texture[%d], ", inst
->TexSrcUnit
);
1481 switch (inst
->TexSrcTarget
) {
1482 case TEXTURE_1D_INDEX
: _mesa_printf("1D"); break;
1483 case TEXTURE_2D_INDEX
: _mesa_printf("2D"); break;
1484 case TEXTURE_3D_INDEX
: _mesa_printf("3D"); break;
1485 case TEXTURE_CUBE_INDEX
: _mesa_printf("CUBE"); break;
1486 case TEXTURE_RECT_INDEX
: _mesa_printf("RECT"); break;
1493 _mesa_printf("ARL addr.x, ");
1494 print_src_reg(&inst
->SrcReg
[0]);
1495 _mesa_printf(";\n");
1497 /* XXX may need for other special-case instructions */
1499 /* typical alu instruction */
1501 const GLuint numRegs
= _mesa_num_inst_src_regs(inst
->Opcode
);
1504 _mesa_printf("%s", _mesa_opcode_string(inst
->Opcode
));
1506 /* frag prog only */
1507 if (inst
->SaturateMode
== SATURATE_ZERO_ONE
)
1508 _mesa_printf("_SAT");
1510 if (inst
->DstReg
.File
!= PROGRAM_UNDEFINED
) {
1511 _mesa_printf(" %s[%d]%s",
1512 program_file_string(inst
->DstReg
.File
),
1514 writemask_string(inst
->DstReg
.WriteMask
));
1520 for (j
= 0; j
< numRegs
; j
++) {
1521 print_src_reg(inst
->SrcReg
+ j
);
1522 if (j
+ 1 < numRegs
)
1526 _mesa_printf(";\n");
1533 * Print a vertx/fragment program to stdout.
1534 * XXX this function could be greatly improved.
1537 _mesa_print_program(const struct program
*prog
)
1540 for (i
= 0; i
< prog
->NumInstructions
; i
++) {
1541 _mesa_printf("%3d: ", i
);
1542 _mesa_print_instruction(prog
->Instructions
+ i
);
1548 * Print all of a program's parameters.
1551 _mesa_print_program_parameters(GLcontext
*ctx
, const struct program
*prog
)
1555 _mesa_printf("NumInstructions=%d\n", prog
->NumInstructions
);
1556 _mesa_printf("NumTemporaries=%d\n", prog
->NumTemporaries
);
1557 _mesa_printf("NumParameters=%d\n", prog
->NumParameters
);
1558 _mesa_printf("NumAttributes=%d\n", prog
->NumAttributes
);
1559 _mesa_printf("NumAddressRegs=%d\n", prog
->NumAddressRegs
);
1561 _mesa_load_state_parameters(ctx
, prog
->Parameters
);
1564 _mesa_printf("Local Params:\n");
1565 for (i
= 0; i
< MAX_PROGRAM_LOCAL_PARAMS
; i
++){
1566 const GLfloat
*p
= prog
->LocalParams
[i
];
1567 _mesa_printf("%2d: %f, %f, %f, %f\n", i
, p
[0], p
[1], p
[2], p
[3]);
1571 for (i
= 0; i
< prog
->Parameters
->NumParameters
; i
++){
1572 struct program_parameter
*param
= prog
->Parameters
->Parameters
+ i
;
1573 const GLfloat
*v
= prog
->Parameters
->ParameterValues
[i
];
1574 _mesa_printf("param[%d] %s = {%.3f, %.3f, %.3f, %.3f};\n",
1575 i
, param
->Name
, v
[0], v
[1], v
[2], v
[3]);
1581 /**********************************************************************/
1583 /**********************************************************************/
1587 * Bind a program (make it current)
1588 * \note Called from the GL API dispatcher by both glBindProgramNV
1589 * and glBindProgramARB.
1592 _mesa_BindProgram(GLenum target
, GLuint id
)
1594 struct program
*prog
;
1595 GET_CURRENT_CONTEXT(ctx
);
1596 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1598 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
1600 if ((target
== GL_VERTEX_PROGRAM_NV
1601 && ctx
->Extensions
.NV_vertex_program
) ||
1602 (target
== GL_VERTEX_PROGRAM_ARB
1603 && ctx
->Extensions
.ARB_vertex_program
)) {
1604 /*** Vertex program binding ***/
1605 struct vertex_program
*curProg
= ctx
->VertexProgram
.Current
;
1606 if (curProg
->Base
.Id
== id
) {
1607 /* binding same program - no change */
1610 if (curProg
->Base
.Id
!= 0) {
1611 /* decrement refcount on previously bound vertex program */
1612 curProg
->Base
.RefCount
--;
1613 /* and delete if refcount goes below one */
1614 if (curProg
->Base
.RefCount
<= 0) {
1615 /* the program ID was already removed from the hash table */
1616 ctx
->Driver
.DeleteProgram(ctx
, &(curProg
->Base
));
1620 else if ((target
== GL_FRAGMENT_PROGRAM_NV
1621 && ctx
->Extensions
.NV_fragment_program
) ||
1622 (target
== GL_FRAGMENT_PROGRAM_ARB
1623 && ctx
->Extensions
.ARB_fragment_program
)) {
1624 /*** Fragment program binding ***/
1625 struct fragment_program
*curProg
= ctx
->FragmentProgram
.Current
;
1626 if (curProg
->Base
.Id
== id
) {
1627 /* binding same program - no change */
1630 if (curProg
->Base
.Id
!= 0) {
1631 /* decrement refcount on previously bound fragment program */
1632 curProg
->Base
.RefCount
--;
1633 /* and delete if refcount goes below one */
1634 if (curProg
->Base
.RefCount
<= 0) {
1635 /* the program ID was already removed from the hash table */
1636 ctx
->Driver
.DeleteProgram(ctx
, &(curProg
->Base
));
1641 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindProgramNV/ARB(target)");
1645 /* NOTE: binding to a non-existant program is not an error.
1646 * That's supposed to be caught in glBegin.
1649 /* Bind default program */
1651 if (target
== GL_VERTEX_PROGRAM_NV
|| target
== GL_VERTEX_PROGRAM_ARB
)
1652 prog
= ctx
->Shared
->DefaultVertexProgram
;
1654 prog
= ctx
->Shared
->DefaultFragmentProgram
;
1657 /* Bind user program */
1658 prog
= (struct program
*) _mesa_HashLookup(ctx
->Shared
->Programs
, id
);
1659 if (!prog
|| prog
== &_mesa_DummyProgram
) {
1660 /* allocate a new program now */
1661 prog
= ctx
->Driver
.NewProgram(ctx
, target
, id
);
1663 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindProgramNV/ARB");
1666 _mesa_HashInsert(ctx
->Shared
->Programs
, id
, prog
);
1668 else if (prog
->Target
!= target
) {
1669 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1670 "glBindProgramNV/ARB(target mismatch)");
1676 if (target
== GL_VERTEX_PROGRAM_NV
|| target
== GL_VERTEX_PROGRAM_ARB
) {
1677 ctx
->VertexProgram
.Current
= (struct vertex_program
*) prog
;
1679 else if (target
== GL_FRAGMENT_PROGRAM_NV
|| target
== GL_FRAGMENT_PROGRAM_ARB
) {
1680 ctx
->FragmentProgram
.Current
= (struct fragment_program
*) prog
;
1683 /* Never null pointers */
1684 ASSERT(ctx
->VertexProgram
.Current
);
1685 ASSERT(ctx
->FragmentProgram
.Current
);
1690 if (ctx
->Driver
.BindProgram
)
1691 ctx
->Driver
.BindProgram(ctx
, target
, prog
);
1696 * Delete a list of programs.
1697 * \note Not compiled into display lists.
1698 * \note Called by both glDeleteProgramsNV and glDeleteProgramsARB.
1701 _mesa_DeletePrograms(GLsizei n
, const GLuint
*ids
)
1704 GET_CURRENT_CONTEXT(ctx
);
1705 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
1708 _mesa_error( ctx
, GL_INVALID_VALUE
, "glDeleteProgramsNV" );
1712 for (i
= 0; i
< n
; i
++) {
1714 struct program
*prog
= (struct program
*)
1715 _mesa_HashLookup(ctx
->Shared
->Programs
, ids
[i
]);
1716 if (prog
== &_mesa_DummyProgram
) {
1717 _mesa_HashRemove(ctx
->Shared
->Programs
, ids
[i
]);
1720 /* Unbind program if necessary */
1721 if (prog
->Target
== GL_VERTEX_PROGRAM_NV
||
1722 prog
->Target
== GL_VERTEX_STATE_PROGRAM_NV
) {
1723 if (ctx
->VertexProgram
.Current
&&
1724 ctx
->VertexProgram
.Current
->Base
.Id
== ids
[i
]) {
1725 /* unbind this currently bound program */
1726 _mesa_BindProgram(prog
->Target
, 0);
1729 else if (prog
->Target
== GL_FRAGMENT_PROGRAM_NV
||
1730 prog
->Target
== GL_FRAGMENT_PROGRAM_ARB
) {
1731 if (ctx
->FragmentProgram
.Current
&&
1732 ctx
->FragmentProgram
.Current
->Base
.Id
== ids
[i
]) {
1733 /* unbind this currently bound program */
1734 _mesa_BindProgram(prog
->Target
, 0);
1738 _mesa_problem(ctx
, "bad target in glDeleteProgramsNV");
1741 /* The ID is immediately available for re-use now */
1742 _mesa_HashRemove(ctx
->Shared
->Programs
, ids
[i
]);
1744 if (prog
->RefCount
<= 0) {
1745 ctx
->Driver
.DeleteProgram(ctx
, prog
);
1754 * Generate a list of new program identifiers.
1755 * \note Not compiled into display lists.
1756 * \note Called by both glGenProgramsNV and glGenProgramsARB.
1759 _mesa_GenPrograms(GLsizei n
, GLuint
*ids
)
1763 GET_CURRENT_CONTEXT(ctx
);
1764 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1767 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenPrograms");
1774 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->Programs
, n
);
1776 /* Insert pointer to dummy program as placeholder */
1777 for (i
= 0; i
< (GLuint
) n
; i
++) {
1778 _mesa_HashInsert(ctx
->Shared
->Programs
, first
+ i
, &_mesa_DummyProgram
);
1781 /* Return the program names */
1782 for (i
= 0; i
< (GLuint
) n
; i
++) {
1789 * Determine if id names a vertex or fragment program.
1790 * \note Not compiled into display lists.
1791 * \note Called from both glIsProgramNV and glIsProgramARB.
1792 * \param id is the program identifier
1793 * \return GL_TRUE if id is a program, else GL_FALSE.
1795 GLboolean GLAPIENTRY
1796 _mesa_IsProgram(GLuint id
)
1798 GET_CURRENT_CONTEXT(ctx
);
1799 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1804 if (_mesa_HashLookup(ctx
->Shared
->Programs
, id
))
1812 /**********************************************************************/
1813 /* GL_MESA_program_debug extension */
1814 /**********************************************************************/
1818 GLAPI
void GLAPIENTRY
1819 glProgramCallbackMESA(GLenum target
, GLprogramcallbackMESA callback
,
1822 _mesa_ProgramCallbackMESA(target
, callback
, data
);
1827 _mesa_ProgramCallbackMESA(GLenum target
, GLprogramcallbackMESA callback
,
1830 GET_CURRENT_CONTEXT(ctx
);
1833 case GL_FRAGMENT_PROGRAM_ARB
:
1834 if (!ctx
->Extensions
.ARB_fragment_program
) {
1835 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramCallbackMESA(target)");
1838 ctx
->FragmentProgram
.Callback
= callback
;
1839 ctx
->FragmentProgram
.CallbackData
= data
;
1841 case GL_FRAGMENT_PROGRAM_NV
:
1842 if (!ctx
->Extensions
.NV_fragment_program
) {
1843 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramCallbackMESA(target)");
1846 ctx
->FragmentProgram
.Callback
= callback
;
1847 ctx
->FragmentProgram
.CallbackData
= data
;
1849 case GL_VERTEX_PROGRAM_ARB
: /* == GL_VERTEX_PROGRAM_NV */
1850 if (!ctx
->Extensions
.ARB_vertex_program
&&
1851 !ctx
->Extensions
.NV_vertex_program
) {
1852 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramCallbackMESA(target)");
1855 ctx
->VertexProgram
.Callback
= callback
;
1856 ctx
->VertexProgram
.CallbackData
= data
;
1859 _mesa_error(ctx
, GL_INVALID_ENUM
, "glProgramCallbackMESA(target)");
1866 GLAPI
void GLAPIENTRY
1867 glGetProgramRegisterfvMESA(GLenum target
,
1868 GLsizei len
, const GLubyte
*registerName
,
1871 _mesa_GetProgramRegisterfvMESA(target
, len
, registerName
, v
);
1876 _mesa_GetProgramRegisterfvMESA(GLenum target
,
1877 GLsizei len
, const GLubyte
*registerName
,
1881 GET_CURRENT_CONTEXT(ctx
);
1883 /* We _should_ be inside glBegin/glEnd */
1885 if (ctx
->Driver
.CurrentExecPrimitive
== PRIM_OUTSIDE_BEGIN_END
) {
1886 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetProgramRegisterfvMESA");
1891 /* make null-terminated copy of registerName */
1892 len
= MIN2((unsigned int) len
, sizeof(reg
) - 1);
1893 _mesa_memcpy(reg
, registerName
, len
);
1897 case GL_VERTEX_PROGRAM_NV
:
1898 if (!ctx
->Extensions
.ARB_vertex_program
&&
1899 !ctx
->Extensions
.NV_vertex_program
) {
1900 _mesa_error(ctx
, GL_INVALID_ENUM
,
1901 "glGetProgramRegisterfvMESA(target)");
1904 if (!ctx
->VertexProgram
._Enabled
) {
1905 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1906 "glGetProgramRegisterfvMESA");
1909 /* GL_NV_vertex_program */
1910 if (reg
[0] == 'R') {
1912 GLint i
= _mesa_atoi(reg
+ 1);
1913 if (i
>= (GLint
)ctx
->Const
.VertexProgram
.MaxTemps
) {
1914 _mesa_error(ctx
, GL_INVALID_VALUE
,
1915 "glGetProgramRegisterfvMESA(registerName)");
1918 COPY_4V(v
, ctx
->VertexProgram
.Temporaries
[i
]);
1920 else if (reg
[0] == 'v' && reg
[1] == '[') {
1921 /* Vertex Input attribute */
1923 for (i
= 0; i
< ctx
->Const
.VertexProgram
.MaxAttribs
; i
++) {
1924 const char *name
= _mesa_nv_vertex_input_register_name(i
);
1926 _mesa_sprintf(number
, "%d", i
);
1927 if (_mesa_strncmp(reg
+ 2, name
, 4) == 0 ||
1928 _mesa_strncmp(reg
+ 2, number
, _mesa_strlen(number
)) == 0) {
1929 COPY_4V(v
, ctx
->VertexProgram
.Inputs
[i
]);
1933 _mesa_error(ctx
, GL_INVALID_VALUE
,
1934 "glGetProgramRegisterfvMESA(registerName)");
1937 else if (reg
[0] == 'o' && reg
[1] == '[') {
1938 /* Vertex output attribute */
1940 /* GL_ARB_vertex_program */
1941 else if (_mesa_strncmp(reg
, "vertex.", 7) == 0) {
1945 _mesa_error(ctx
, GL_INVALID_VALUE
,
1946 "glGetProgramRegisterfvMESA(registerName)");
1950 case GL_FRAGMENT_PROGRAM_ARB
:
1951 if (!ctx
->Extensions
.ARB_fragment_program
) {
1952 _mesa_error(ctx
, GL_INVALID_ENUM
,
1953 "glGetProgramRegisterfvMESA(target)");
1956 if (!ctx
->FragmentProgram
._Enabled
) {
1957 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1958 "glGetProgramRegisterfvMESA");
1963 case GL_FRAGMENT_PROGRAM_NV
:
1964 if (!ctx
->Extensions
.NV_fragment_program
) {
1965 _mesa_error(ctx
, GL_INVALID_ENUM
,
1966 "glGetProgramRegisterfvMESA(target)");
1969 if (!ctx
->FragmentProgram
._Enabled
) {
1970 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1971 "glGetProgramRegisterfvMESA");
1974 if (reg
[0] == 'R') {
1976 GLint i
= _mesa_atoi(reg
+ 1);
1977 if (i
>= (GLint
)ctx
->Const
.FragmentProgram
.MaxTemps
) {
1978 _mesa_error(ctx
, GL_INVALID_VALUE
,
1979 "glGetProgramRegisterfvMESA(registerName)");
1982 COPY_4V(v
, ctx
->FragmentProgram
.Machine
.Temporaries
[i
]);
1984 else if (reg
[0] == 'f' && reg
[1] == '[') {
1985 /* Fragment input attribute */
1987 for (i
= 0; i
< ctx
->Const
.FragmentProgram
.MaxAttribs
; i
++) {
1988 const char *name
= _mesa_nv_fragment_input_register_name(i
);
1989 if (_mesa_strncmp(reg
+ 2, name
, 4) == 0) {
1990 COPY_4V(v
, ctx
->FragmentProgram
.Machine
.Inputs
[i
]);
1994 _mesa_error(ctx
, GL_INVALID_VALUE
,
1995 "glGetProgramRegisterfvMESA(registerName)");
1998 else if (_mesa_strcmp(reg
, "o[COLR]") == 0) {
1999 /* Fragment output color */
2000 COPY_4V(v
, ctx
->FragmentProgram
.Machine
.Outputs
[FRAG_RESULT_COLR
]);
2002 else if (_mesa_strcmp(reg
, "o[COLH]") == 0) {
2003 /* Fragment output color */
2004 COPY_4V(v
, ctx
->FragmentProgram
.Machine
.Outputs
[FRAG_RESULT_COLH
]);
2006 else if (_mesa_strcmp(reg
, "o[DEPR]") == 0) {
2007 /* Fragment output depth */
2008 COPY_4V(v
, ctx
->FragmentProgram
.Machine
.Outputs
[FRAG_RESULT_DEPR
]);
2011 /* try user-defined identifiers */
2012 const GLfloat
*value
= _mesa_lookup_parameter_value(
2013 ctx
->FragmentProgram
.Current
->Base
.Parameters
, -1, reg
);
2018 _mesa_error(ctx
, GL_INVALID_VALUE
,
2019 "glGetProgramRegisterfvMESA(registerName)");
2025 _mesa_error(ctx
, GL_INVALID_ENUM
,
2026 "glGetProgramRegisterfvMESA(target)");