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.
28 * Texture state handling.
36 #include "extensions.h"
38 #include "nvfragprog.h"
42 #include "texenvprogram.h"
44 #include "math/m_xform.h"
45 #include "math/m_matrix.h"
50 /* Needed for an Amiga compiler */
51 #define ENUM_TO_FLOAT(X) ((GLfloat)(GLint)(X))
52 #define ENUM_TO_DOUBLE(X) ((GLdouble)(GLint)(X))
54 /* all other compilers */
55 #define ENUM_TO_FLOAT(X) ((GLfloat)(X))
56 #define ENUM_TO_DOUBLE(X) ((GLdouble)(X))
60 * Default texture combine environment state. This is used to initialize
61 * a context's texture units and as the basis for converting "classic"
62 * texture environmnets to ARB_texture_env_combine style values.
64 static const struct gl_tex_env_combine_state default_combine_state
= {
65 GL_MODULATE
, GL_MODULATE
,
66 { GL_TEXTURE
, GL_PREVIOUS
, GL_CONSTANT
},
67 { GL_TEXTURE
, GL_PREVIOUS
, GL_CONSTANT
},
68 { GL_SRC_COLOR
, GL_SRC_COLOR
, GL_SRC_ALPHA
},
69 { GL_SRC_ALPHA
, GL_SRC_ALPHA
, GL_SRC_ALPHA
},
76 _mesa_copy_texture_state( const GLcontext
*src
, GLcontext
*dst
)
83 dst
->Texture
.CurrentUnit
= src
->Texture
.CurrentUnit
;
84 dst
->Texture
._GenFlags
= src
->Texture
._GenFlags
;
85 dst
->Texture
._TexGenEnabled
= src
->Texture
._TexGenEnabled
;
86 dst
->Texture
._TexMatEnabled
= src
->Texture
._TexMatEnabled
;
87 dst
->Texture
.SharedPalette
= src
->Texture
.SharedPalette
;
90 for (i
= 0; i
< src
->Const
.MaxTextureUnits
; i
++) {
91 dst
->Texture
.Unit
[i
].Enabled
= src
->Texture
.Unit
[i
].Enabled
;
92 dst
->Texture
.Unit
[i
].EnvMode
= src
->Texture
.Unit
[i
].EnvMode
;
93 COPY_4V(dst
->Texture
.Unit
[i
].EnvColor
, src
->Texture
.Unit
[i
].EnvColor
);
94 dst
->Texture
.Unit
[i
].TexGenEnabled
= src
->Texture
.Unit
[i
].TexGenEnabled
;
95 dst
->Texture
.Unit
[i
].GenModeS
= src
->Texture
.Unit
[i
].GenModeS
;
96 dst
->Texture
.Unit
[i
].GenModeT
= src
->Texture
.Unit
[i
].GenModeT
;
97 dst
->Texture
.Unit
[i
].GenModeR
= src
->Texture
.Unit
[i
].GenModeR
;
98 dst
->Texture
.Unit
[i
].GenModeQ
= src
->Texture
.Unit
[i
].GenModeQ
;
99 dst
->Texture
.Unit
[i
]._GenBitS
= src
->Texture
.Unit
[i
]._GenBitS
;
100 dst
->Texture
.Unit
[i
]._GenBitT
= src
->Texture
.Unit
[i
]._GenBitT
;
101 dst
->Texture
.Unit
[i
]._GenBitR
= src
->Texture
.Unit
[i
]._GenBitR
;
102 dst
->Texture
.Unit
[i
]._GenBitQ
= src
->Texture
.Unit
[i
]._GenBitQ
;
103 dst
->Texture
.Unit
[i
]._GenFlags
= src
->Texture
.Unit
[i
]._GenFlags
;
104 COPY_4V(dst
->Texture
.Unit
[i
].ObjectPlaneS
, src
->Texture
.Unit
[i
].ObjectPlaneS
);
105 COPY_4V(dst
->Texture
.Unit
[i
].ObjectPlaneT
, src
->Texture
.Unit
[i
].ObjectPlaneT
);
106 COPY_4V(dst
->Texture
.Unit
[i
].ObjectPlaneR
, src
->Texture
.Unit
[i
].ObjectPlaneR
);
107 COPY_4V(dst
->Texture
.Unit
[i
].ObjectPlaneQ
, src
->Texture
.Unit
[i
].ObjectPlaneQ
);
108 COPY_4V(dst
->Texture
.Unit
[i
].EyePlaneS
, src
->Texture
.Unit
[i
].EyePlaneS
);
109 COPY_4V(dst
->Texture
.Unit
[i
].EyePlaneT
, src
->Texture
.Unit
[i
].EyePlaneT
);
110 COPY_4V(dst
->Texture
.Unit
[i
].EyePlaneR
, src
->Texture
.Unit
[i
].EyePlaneR
);
111 COPY_4V(dst
->Texture
.Unit
[i
].EyePlaneQ
, src
->Texture
.Unit
[i
].EyePlaneQ
);
112 dst
->Texture
.Unit
[i
].LodBias
= src
->Texture
.Unit
[i
].LodBias
;
114 /* GL_EXT_texture_env_combine */
115 dst
->Texture
.Unit
[i
].Combine
.ModeRGB
= src
->Texture
.Unit
[i
].Combine
.ModeRGB
;
116 dst
->Texture
.Unit
[i
].Combine
.ModeA
= src
->Texture
.Unit
[i
].Combine
.ModeA
;
117 COPY_3V(dst
->Texture
.Unit
[i
].Combine
.SourceRGB
, src
->Texture
.Unit
[i
].Combine
.SourceRGB
);
118 COPY_3V(dst
->Texture
.Unit
[i
].Combine
.SourceA
, src
->Texture
.Unit
[i
].Combine
.SourceA
);
119 COPY_3V(dst
->Texture
.Unit
[i
].Combine
.OperandRGB
, src
->Texture
.Unit
[i
].Combine
.OperandRGB
);
120 COPY_3V(dst
->Texture
.Unit
[i
].Combine
.OperandA
, src
->Texture
.Unit
[i
].Combine
.OperandA
);
121 dst
->Texture
.Unit
[i
].Combine
.ScaleShiftRGB
= src
->Texture
.Unit
[i
].Combine
.ScaleShiftRGB
;
122 dst
->Texture
.Unit
[i
].Combine
.ScaleShiftA
= src
->Texture
.Unit
[i
].Combine
.ScaleShiftA
;
124 /* texture object state */
125 _mesa_copy_texture_object(dst
->Texture
.Unit
[i
].Current1D
,
126 src
->Texture
.Unit
[i
].Current1D
);
127 _mesa_copy_texture_object(dst
->Texture
.Unit
[i
].Current2D
,
128 src
->Texture
.Unit
[i
].Current2D
);
129 _mesa_copy_texture_object(dst
->Texture
.Unit
[i
].Current3D
,
130 src
->Texture
.Unit
[i
].Current3D
);
131 _mesa_copy_texture_object(dst
->Texture
.Unit
[i
].CurrentCubeMap
,
132 src
->Texture
.Unit
[i
].CurrentCubeMap
);
133 _mesa_copy_texture_object(dst
->Texture
.Unit
[i
].CurrentRect
,
134 src
->Texture
.Unit
[i
].CurrentRect
);
143 _mesa_print_texunit_state( GLcontext
*ctx
, GLuint unit
)
145 const struct gl_texture_unit
*texUnit
= ctx
->Texture
.Unit
+ unit
;
146 _mesa_printf("Texture Unit %d\n", unit
);
147 _mesa_printf(" GL_TEXTURE_ENV_MODE = %s\n", _mesa_lookup_enum_by_nr(texUnit
->EnvMode
));
148 _mesa_printf(" GL_COMBINE_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit
->Combine
.ModeRGB
));
149 _mesa_printf(" GL_COMBINE_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit
->Combine
.ModeA
));
150 _mesa_printf(" GL_SOURCE0_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit
->Combine
.SourceRGB
[0]));
151 _mesa_printf(" GL_SOURCE1_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit
->Combine
.SourceRGB
[1]));
152 _mesa_printf(" GL_SOURCE2_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit
->Combine
.SourceRGB
[2]));
153 _mesa_printf(" GL_SOURCE0_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit
->Combine
.SourceA
[0]));
154 _mesa_printf(" GL_SOURCE1_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit
->Combine
.SourceA
[1]));
155 _mesa_printf(" GL_SOURCE2_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit
->Combine
.SourceA
[2]));
156 _mesa_printf(" GL_OPERAND0_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit
->Combine
.OperandRGB
[0]));
157 _mesa_printf(" GL_OPERAND1_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit
->Combine
.OperandRGB
[1]));
158 _mesa_printf(" GL_OPERAND2_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit
->Combine
.OperandRGB
[2]));
159 _mesa_printf(" GL_OPERAND0_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit
->Combine
.OperandA
[0]));
160 _mesa_printf(" GL_OPERAND1_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit
->Combine
.OperandA
[1]));
161 _mesa_printf(" GL_OPERAND2_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit
->Combine
.OperandA
[2]));
162 _mesa_printf(" GL_RGB_SCALE = %d\n", 1 << texUnit
->Combine
.ScaleShiftRGB
);
163 _mesa_printf(" GL_ALPHA_SCALE = %d\n", 1 << texUnit
->Combine
.ScaleShiftA
);
164 _mesa_printf(" GL_TEXTURE_ENV_COLOR = (%f, %f, %f, %f)\n", texUnit
->EnvColor
[0], texUnit
->EnvColor
[1], texUnit
->EnvColor
[2], texUnit
->EnvColor
[3]);
169 /**********************************************************************/
170 /* Texture Environment */
171 /**********************************************************************/
174 * Convert "classic" texture environment to ARB_texture_env_combine style
177 * \param state texture_env_combine state vector to be filled-in.
178 * \param mode Classic texture environment mode (i.e., \c GL_REPLACE,
179 * \c GL_BLEND, \c GL_DECAL, etc.).
180 * \param texBaseFormat Base format of the texture associated with the
184 calculate_derived_texenv( struct gl_tex_env_combine_state
*state
,
185 GLenum mode
, GLenum texBaseFormat
)
190 *state
= default_combine_state
;
192 switch (texBaseFormat
) {
194 state
->SourceRGB
[0] = GL_PREVIOUS
;
197 case GL_LUMINANCE_ALPHA
:
205 state
->SourceA
[0] = GL_PREVIOUS
;
209 _mesa_problem(NULL
, "Invalid texBaseFormat in calculate_derived_texenv");
216 mode_rgb
= (texBaseFormat
== GL_ALPHA
) ? GL_REPLACE
: mode
;
221 mode_rgb
= GL_INTERPOLATE
;
224 state
->SourceA
[0] = GL_PREVIOUS
;
226 /* Having alpha / luminance / intensity textures replace using the
227 * incoming fragment color matches the definition in NV_texture_shader.
228 * The 1.5 spec simply marks these as "undefined".
230 switch (texBaseFormat
) {
233 case GL_LUMINANCE_ALPHA
:
235 state
->SourceRGB
[0] = GL_PREVIOUS
;
239 mode_rgb
= GL_REPLACE
;
242 state
->SourceRGB
[2] = GL_TEXTURE
;
248 mode_rgb
= GL_INTERPOLATE
;
249 mode_a
= GL_MODULATE
;
251 switch (texBaseFormat
) {
253 mode_rgb
= GL_REPLACE
;
256 mode_a
= GL_INTERPOLATE
;
257 state
->SourceA
[0] = GL_CONSTANT
;
258 state
->OperandA
[2] = GL_SRC_ALPHA
;
262 case GL_LUMINANCE_ALPHA
:
265 state
->SourceRGB
[2] = GL_TEXTURE
;
266 state
->SourceA
[2] = GL_TEXTURE
;
267 state
->SourceRGB
[0] = GL_CONSTANT
;
268 state
->OperandRGB
[2] = GL_SRC_COLOR
;
274 mode_rgb
= (texBaseFormat
== GL_ALPHA
) ? GL_REPLACE
: GL_ADD
;
275 mode_a
= (texBaseFormat
== GL_INTENSITY
) ? GL_ADD
: GL_MODULATE
;
280 "Invalid texture env mode in calculate_derived_texenv");
284 state
->ModeRGB
= (state
->SourceRGB
[0] != GL_PREVIOUS
)
285 ? mode_rgb
: GL_REPLACE
;
286 state
->ModeA
= (state
->SourceA
[0] != GL_PREVIOUS
)
287 ? mode_a
: GL_REPLACE
;
292 _mesa_TexEnvfv( GLenum target
, GLenum pname
, const GLfloat
*param
)
294 GET_CURRENT_CONTEXT(ctx
);
295 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
296 ASSERT_OUTSIDE_BEGIN_END(ctx
);
298 #define TE_ERROR(errCode, msg, value) \
299 _mesa_error(ctx, errCode, msg, _mesa_lookup_enum_by_nr(value));
301 if (target
== GL_TEXTURE_ENV
) {
303 case GL_TEXTURE_ENV_MODE
:
305 const GLenum mode
= (GLenum
) (GLint
) *param
;
306 if (texUnit
->EnvMode
== mode
)
308 if (mode
== GL_MODULATE
||
311 mode
== GL_REPLACE
||
312 (mode
== GL_ADD
&& ctx
->Extensions
.EXT_texture_env_add
) ||
313 (mode
== GL_COMBINE
&&
314 (ctx
->Extensions
.EXT_texture_env_combine
||
315 ctx
->Extensions
.ARB_texture_env_combine
))) {
317 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
318 texUnit
->EnvMode
= mode
;
321 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(param=%s)", mode
);
326 case GL_TEXTURE_ENV_COLOR
:
329 tmp
[0] = CLAMP( param
[0], 0.0F
, 1.0F
);
330 tmp
[1] = CLAMP( param
[1], 0.0F
, 1.0F
);
331 tmp
[2] = CLAMP( param
[2], 0.0F
, 1.0F
);
332 tmp
[3] = CLAMP( param
[3], 0.0F
, 1.0F
);
333 if (TEST_EQ_4V(tmp
, texUnit
->EnvColor
))
335 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
336 COPY_4FV(texUnit
->EnvColor
, tmp
);
340 if (ctx
->Extensions
.EXT_texture_env_combine
||
341 ctx
->Extensions
.ARB_texture_env_combine
) {
342 const GLenum mode
= (GLenum
) (GLint
) *param
;
343 if (texUnit
->Combine
.ModeRGB
== mode
)
354 if (!ctx
->Extensions
.ARB_texture_env_combine
) {
355 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(param=%s)", mode
);
359 case GL_DOT3_RGB_EXT
:
360 case GL_DOT3_RGBA_EXT
:
361 if (!ctx
->Extensions
.EXT_texture_env_dot3
) {
362 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(param=%s)", mode
);
368 if (!ctx
->Extensions
.ARB_texture_env_dot3
) {
369 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(param=%s)", mode
);
373 case GL_MODULATE_ADD_ATI
:
374 case GL_MODULATE_SIGNED_ADD_ATI
:
375 case GL_MODULATE_SUBTRACT_ATI
:
376 if (!ctx
->Extensions
.ATI_texture_env_combine3
) {
377 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(param=%s)", mode
);
382 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(param=%s)", mode
);
385 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
386 texUnit
->Combine
.ModeRGB
= mode
;
389 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(pname=%s)", pname
);
393 case GL_COMBINE_ALPHA
:
394 if (ctx
->Extensions
.EXT_texture_env_combine
||
395 ctx
->Extensions
.ARB_texture_env_combine
) {
396 const GLenum mode
= (GLenum
) (GLint
) *param
;
397 if (texUnit
->Combine
.ModeA
== mode
)
408 if (!ctx
->Extensions
.ARB_texture_env_combine
) {
409 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(param=%s)", mode
);
413 case GL_MODULATE_ADD_ATI
:
414 case GL_MODULATE_SIGNED_ADD_ATI
:
415 case GL_MODULATE_SUBTRACT_ATI
:
416 if (!ctx
->Extensions
.ATI_texture_env_combine3
) {
417 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(param=%s)", mode
);
422 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(param=%s)", mode
);
425 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
426 texUnit
->Combine
.ModeA
= mode
;
429 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(pname=%s)", pname
);
436 if (ctx
->Extensions
.EXT_texture_env_combine
||
437 ctx
->Extensions
.ARB_texture_env_combine
) {
438 const GLenum source
= (GLenum
) (GLint
) *param
;
439 const GLuint s
= pname
- GL_SOURCE0_RGB
;
440 if (texUnit
->Combine
.SourceRGB
[s
] == source
)
442 if (source
== GL_TEXTURE
||
443 source
== GL_CONSTANT
||
444 source
== GL_PRIMARY_COLOR
||
445 source
== GL_PREVIOUS
||
446 (ctx
->Extensions
.ARB_texture_env_crossbar
&&
447 source
>= GL_TEXTURE0
&&
448 source
< GL_TEXTURE0
+ ctx
->Const
.MaxTextureUnits
) ||
449 (ctx
->Extensions
.ATI_texture_env_combine3
&&
450 (source
== GL_ZERO
|| source
== GL_ONE
))) {
452 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
453 texUnit
->Combine
.SourceRGB
[s
] = source
;
456 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(param=%s)", source
);
461 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(pname=%s)", pname
);
465 case GL_SOURCE0_ALPHA
:
466 case GL_SOURCE1_ALPHA
:
467 case GL_SOURCE2_ALPHA
:
468 if (ctx
->Extensions
.EXT_texture_env_combine
||
469 ctx
->Extensions
.ARB_texture_env_combine
) {
470 const GLenum source
= (GLenum
) (GLint
) *param
;
471 const GLuint s
= pname
- GL_SOURCE0_ALPHA
;
472 if (texUnit
->Combine
.SourceA
[s
] == source
)
474 if (source
== GL_TEXTURE
||
475 source
== GL_CONSTANT
||
476 source
== GL_PRIMARY_COLOR
||
477 source
== GL_PREVIOUS
||
478 (ctx
->Extensions
.ARB_texture_env_crossbar
&&
479 source
>= GL_TEXTURE0
&&
480 source
< GL_TEXTURE0
+ ctx
->Const
.MaxTextureUnits
) ||
481 (ctx
->Extensions
.ATI_texture_env_combine3
&&
482 (source
== GL_ZERO
|| source
== GL_ONE
))) {
484 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
485 texUnit
->Combine
.SourceA
[s
] = source
;
488 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(param=%s)", source
);
493 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(pname=%s)", pname
);
497 case GL_OPERAND0_RGB
:
498 case GL_OPERAND1_RGB
:
499 if (ctx
->Extensions
.EXT_texture_env_combine
||
500 ctx
->Extensions
.ARB_texture_env_combine
) {
501 const GLenum operand
= (GLenum
) (GLint
) *param
;
502 const GLuint s
= pname
- GL_OPERAND0_RGB
;
503 if (texUnit
->Combine
.OperandRGB
[s
] == operand
)
507 case GL_ONE_MINUS_SRC_COLOR
:
509 case GL_ONE_MINUS_SRC_ALPHA
:
510 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
511 texUnit
->Combine
.OperandRGB
[s
] = operand
;
514 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(param=%s)", operand
);
519 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(pname=%s)", pname
);
523 case GL_OPERAND0_ALPHA
:
524 case GL_OPERAND1_ALPHA
:
525 if (ctx
->Extensions
.EXT_texture_env_combine
||
526 ctx
->Extensions
.ARB_texture_env_combine
) {
527 const GLenum operand
= (GLenum
) (GLint
) *param
;
528 if (texUnit
->Combine
.OperandA
[pname
-GL_OPERAND0_ALPHA
] == operand
)
532 case GL_ONE_MINUS_SRC_ALPHA
:
533 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
534 texUnit
->Combine
.OperandA
[pname
-GL_OPERAND0_ALPHA
] = operand
;
537 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(param=%s)", operand
);
542 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(pname=%s)", pname
);
546 case GL_OPERAND2_RGB
:
547 if (ctx
->Extensions
.ARB_texture_env_combine
) {
548 const GLenum operand
= (GLenum
) (GLint
) *param
;
549 if (texUnit
->Combine
.OperandRGB
[2] == operand
)
552 case GL_SRC_COLOR
: /* ARB combine only */
553 case GL_ONE_MINUS_SRC_COLOR
: /* ARB combine only */
555 case GL_ONE_MINUS_SRC_ALPHA
: /* ARB combine only */
556 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
557 texUnit
->Combine
.OperandRGB
[2] = operand
;
560 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(param=%s)", operand
);
564 else if (ctx
->Extensions
.EXT_texture_env_combine
) {
565 const GLenum operand
= (GLenum
) (GLint
) *param
;
566 if (texUnit
->Combine
.OperandRGB
[2] == operand
)
568 /* operand must be GL_SRC_ALPHA which is the initial value - thus
569 don't need to actually compare the operand to the possible value */
571 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(param=%s)", operand
);
576 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(pname=%s)", pname
);
580 case GL_OPERAND2_ALPHA
:
581 if (ctx
->Extensions
.ARB_texture_env_combine
) {
582 const GLenum operand
= (GLenum
) (GLint
) *param
;
583 if (texUnit
->Combine
.OperandA
[2] == operand
)
587 case GL_ONE_MINUS_SRC_ALPHA
: /* ARB combine only */
588 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
589 texUnit
->Combine
.OperandA
[2] = operand
;
592 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(param=%s)", operand
);
596 else if (ctx
->Extensions
.EXT_texture_env_combine
) {
597 const GLenum operand
= (GLenum
) (GLint
) *param
;
598 if (texUnit
->Combine
.OperandA
[2] == operand
)
600 /* operand must be GL_SRC_ALPHA which is the initial value - thus
601 don't need to actually compare the operand to the possible value */
603 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(param=%s)", operand
);
608 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(pname=%s)", pname
);
613 if (ctx
->Extensions
.EXT_texture_env_combine
||
614 ctx
->Extensions
.ARB_texture_env_combine
) {
619 else if (*param
== 2.0) {
622 else if (*param
== 4.0) {
626 _mesa_error( ctx
, GL_INVALID_VALUE
,
627 "glTexEnv(GL_RGB_SCALE not 1, 2 or 4)" );
630 if (texUnit
->Combine
.ScaleShiftRGB
== newshift
)
632 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
633 texUnit
->Combine
.ScaleShiftRGB
= newshift
;
636 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(pname=%s)", pname
);
641 if (ctx
->Extensions
.EXT_texture_env_combine
||
642 ctx
->Extensions
.ARB_texture_env_combine
) {
647 else if (*param
== 2.0) {
650 else if (*param
== 4.0) {
654 _mesa_error( ctx
, GL_INVALID_VALUE
,
655 "glTexEnv(GL_ALPHA_SCALE not 1, 2 or 4)" );
658 if (texUnit
->Combine
.ScaleShiftA
== newshift
)
660 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
661 texUnit
->Combine
.ScaleShiftA
= newshift
;
664 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(pname=%s)", pname
);
669 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexEnv(pname)" );
673 else if (target
== GL_TEXTURE_FILTER_CONTROL_EXT
) {
674 /* GL_EXT_texture_lod_bias */
675 if (!ctx
->Extensions
.EXT_texture_lod_bias
) {
676 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexEnv(target=0x%x)", target
);
679 if (pname
== GL_TEXTURE_LOD_BIAS_EXT
) {
680 if (texUnit
->LodBias
== param
[0])
682 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
683 texUnit
->LodBias
= param
[0];
686 TE_ERROR(GL_INVALID_ENUM
, "glTexEnv(pname=%s)", pname
);
690 else if (target
== GL_POINT_SPRITE_NV
) {
691 /* GL_ARB_point_sprite / GL_NV_point_sprite */
692 if (!ctx
->Extensions
.NV_point_sprite
693 && !ctx
->Extensions
.ARB_point_sprite
) {
694 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexEnv(target=0x%x)", target
);
697 if (pname
== GL_COORD_REPLACE_NV
) {
698 const GLenum value
= (GLenum
) param
[0];
699 if (value
== GL_TRUE
|| value
== GL_FALSE
) {
700 /* It's kind of weird to set point state via glTexEnv,
701 * but that's what the spec calls for.
703 const GLboolean state
= (GLboolean
) value
;
704 if (ctx
->Point
.CoordReplace
[ctx
->Texture
.CurrentUnit
] == state
)
706 FLUSH_VERTICES(ctx
, _NEW_POINT
);
707 ctx
->Point
.CoordReplace
[ctx
->Texture
.CurrentUnit
] = state
;
710 _mesa_error( ctx
, GL_INVALID_VALUE
, "glTexEnv(param=0x%x)", value
);
715 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexEnv(pname=0x%x)", pname
);
720 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexEnv(target=0x%x)",target
);
724 if (MESA_VERBOSE
&(VERBOSE_API
|VERBOSE_TEXTURE
))
725 _mesa_debug(ctx
, "glTexEnv %s %s %.1f(%s) ...\n",
726 _mesa_lookup_enum_by_nr(target
),
727 _mesa_lookup_enum_by_nr(pname
),
729 _mesa_lookup_enum_by_nr((GLenum
) (GLint
) *param
));
731 /* Tell device driver about the new texture environment */
732 if (ctx
->Driver
.TexEnv
) {
733 (*ctx
->Driver
.TexEnv
)( ctx
, target
, pname
, param
);
739 _mesa_TexEnvf( GLenum target
, GLenum pname
, GLfloat param
)
741 _mesa_TexEnvfv( target
, pname
, ¶m
);
747 _mesa_TexEnvi( GLenum target
, GLenum pname
, GLint param
)
750 p
[0] = (GLfloat
) param
;
751 p
[1] = p
[2] = p
[3] = 0.0;
752 _mesa_TexEnvfv( target
, pname
, p
);
757 _mesa_TexEnviv( GLenum target
, GLenum pname
, const GLint
*param
)
760 if (pname
== GL_TEXTURE_ENV_COLOR
) {
761 p
[0] = INT_TO_FLOAT( param
[0] );
762 p
[1] = INT_TO_FLOAT( param
[1] );
763 p
[2] = INT_TO_FLOAT( param
[2] );
764 p
[3] = INT_TO_FLOAT( param
[3] );
767 p
[0] = (GLfloat
) param
[0];
768 p
[1] = p
[2] = p
[3] = 0; /* init to zero, just to be safe */
770 _mesa_TexEnvfv( target
, pname
, p
);
775 _mesa_GetTexEnvfv( GLenum target
, GLenum pname
, GLfloat
*params
)
777 GET_CURRENT_CONTEXT(ctx
);
778 const struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
779 ASSERT_OUTSIDE_BEGIN_END(ctx
);
781 if (target
== GL_TEXTURE_ENV
) {
783 case GL_TEXTURE_ENV_MODE
:
784 *params
= ENUM_TO_FLOAT(texUnit
->EnvMode
);
786 case GL_TEXTURE_ENV_COLOR
:
787 COPY_4FV( params
, texUnit
->EnvColor
);
790 if (ctx
->Extensions
.EXT_texture_env_combine
||
791 ctx
->Extensions
.ARB_texture_env_combine
) {
792 *params
= (GLfloat
) texUnit
->Combine
.ModeRGB
;
795 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)");
798 case GL_COMBINE_ALPHA
:
799 if (ctx
->Extensions
.EXT_texture_env_combine
||
800 ctx
->Extensions
.ARB_texture_env_combine
) {
801 *params
= (GLfloat
) texUnit
->Combine
.ModeA
;
804 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)");
808 if (ctx
->Extensions
.EXT_texture_env_combine
||
809 ctx
->Extensions
.ARB_texture_env_combine
) {
810 *params
= (GLfloat
) texUnit
->Combine
.SourceRGB
[0];
813 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)");
817 if (ctx
->Extensions
.EXT_texture_env_combine
||
818 ctx
->Extensions
.ARB_texture_env_combine
) {
819 *params
= (GLfloat
) texUnit
->Combine
.SourceRGB
[1];
822 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)");
826 if (ctx
->Extensions
.EXT_texture_env_combine
||
827 ctx
->Extensions
.ARB_texture_env_combine
) {
828 *params
= (GLfloat
) texUnit
->Combine
.SourceRGB
[2];
831 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)");
834 case GL_SOURCE0_ALPHA
:
835 if (ctx
->Extensions
.EXT_texture_env_combine
||
836 ctx
->Extensions
.ARB_texture_env_combine
) {
837 *params
= (GLfloat
) texUnit
->Combine
.SourceA
[0];
840 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)");
843 case GL_SOURCE1_ALPHA
:
844 if (ctx
->Extensions
.EXT_texture_env_combine
||
845 ctx
->Extensions
.ARB_texture_env_combine
) {
846 *params
= (GLfloat
) texUnit
->Combine
.SourceA
[1];
849 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)");
852 case GL_SOURCE2_ALPHA
:
853 if (ctx
->Extensions
.EXT_texture_env_combine
||
854 ctx
->Extensions
.ARB_texture_env_combine
) {
855 *params
= (GLfloat
) texUnit
->Combine
.SourceA
[2];
858 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)");
861 case GL_OPERAND0_RGB
:
862 if (ctx
->Extensions
.EXT_texture_env_combine
||
863 ctx
->Extensions
.ARB_texture_env_combine
) {
864 *params
= (GLfloat
) texUnit
->Combine
.OperandRGB
[0];
867 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)");
870 case GL_OPERAND1_RGB
:
871 if (ctx
->Extensions
.EXT_texture_env_combine
||
872 ctx
->Extensions
.ARB_texture_env_combine
) {
873 *params
= (GLfloat
) texUnit
->Combine
.OperandRGB
[1];
876 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)");
879 case GL_OPERAND2_RGB
:
880 if (ctx
->Extensions
.EXT_texture_env_combine
||
881 ctx
->Extensions
.ARB_texture_env_combine
) {
882 *params
= (GLfloat
) texUnit
->Combine
.OperandRGB
[2];
885 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)");
888 case GL_OPERAND0_ALPHA
:
889 if (ctx
->Extensions
.EXT_texture_env_combine
||
890 ctx
->Extensions
.ARB_texture_env_combine
) {
891 *params
= (GLfloat
) texUnit
->Combine
.OperandA
[0];
894 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)");
897 case GL_OPERAND1_ALPHA
:
898 if (ctx
->Extensions
.EXT_texture_env_combine
||
899 ctx
->Extensions
.ARB_texture_env_combine
) {
900 *params
= (GLfloat
) texUnit
->Combine
.OperandA
[1];
903 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)");
906 case GL_OPERAND2_ALPHA
:
907 if (ctx
->Extensions
.EXT_texture_env_combine
||
908 ctx
->Extensions
.ARB_texture_env_combine
) {
909 *params
= (GLfloat
) texUnit
->Combine
.OperandA
[2];
912 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)");
916 if (ctx
->Extensions
.EXT_texture_env_combine
||
917 ctx
->Extensions
.ARB_texture_env_combine
) {
918 if (texUnit
->Combine
.ScaleShiftRGB
== 0)
920 else if (texUnit
->Combine
.ScaleShiftRGB
== 1)
926 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)");
931 if (ctx
->Extensions
.EXT_texture_env_combine
||
932 ctx
->Extensions
.ARB_texture_env_combine
) {
933 if (texUnit
->Combine
.ScaleShiftA
== 0)
935 else if (texUnit
->Combine
.ScaleShiftA
== 1)
941 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)");
946 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname=0x%x)", pname
);
949 else if (target
== GL_TEXTURE_FILTER_CONTROL_EXT
) {
950 /* GL_EXT_texture_lod_bias */
951 if (!ctx
->Extensions
.EXT_texture_lod_bias
) {
952 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(target)" );
955 if (pname
== GL_TEXTURE_LOD_BIAS_EXT
) {
956 *params
= texUnit
->LodBias
;
959 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)" );
963 else if (target
== GL_POINT_SPRITE_NV
) {
964 /* GL_ARB_point_sprite / GL_NV_point_sprite */
965 if (!ctx
->Extensions
.NV_point_sprite
966 && !ctx
->Extensions
.ARB_point_sprite
) {
967 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(target)" );
970 if (pname
== GL_COORD_REPLACE_NV
) {
971 *params
= (GLfloat
) ctx
->Point
.CoordReplace
[ctx
->Texture
.CurrentUnit
];
974 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(pname)" );
979 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexEnvfv(target)" );
986 _mesa_GetTexEnviv( GLenum target
, GLenum pname
, GLint
*params
)
988 GET_CURRENT_CONTEXT(ctx
);
989 const struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
990 ASSERT_OUTSIDE_BEGIN_END(ctx
);
992 if (target
== GL_TEXTURE_ENV
) {
994 case GL_TEXTURE_ENV_MODE
:
995 *params
= (GLint
) texUnit
->EnvMode
;
997 case GL_TEXTURE_ENV_COLOR
:
998 params
[0] = FLOAT_TO_INT( texUnit
->EnvColor
[0] );
999 params
[1] = FLOAT_TO_INT( texUnit
->EnvColor
[1] );
1000 params
[2] = FLOAT_TO_INT( texUnit
->EnvColor
[2] );
1001 params
[3] = FLOAT_TO_INT( texUnit
->EnvColor
[3] );
1003 case GL_COMBINE_RGB
:
1004 if (ctx
->Extensions
.EXT_texture_env_combine
||
1005 ctx
->Extensions
.ARB_texture_env_combine
) {
1006 *params
= (GLint
) texUnit
->Combine
.ModeRGB
;
1009 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)");
1012 case GL_COMBINE_ALPHA
:
1013 if (ctx
->Extensions
.EXT_texture_env_combine
||
1014 ctx
->Extensions
.ARB_texture_env_combine
) {
1015 *params
= (GLint
) texUnit
->Combine
.ModeA
;
1018 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)");
1021 case GL_SOURCE0_RGB
:
1022 if (ctx
->Extensions
.EXT_texture_env_combine
||
1023 ctx
->Extensions
.ARB_texture_env_combine
) {
1024 *params
= (GLint
) texUnit
->Combine
.SourceRGB
[0];
1027 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)");
1030 case GL_SOURCE1_RGB
:
1031 if (ctx
->Extensions
.EXT_texture_env_combine
||
1032 ctx
->Extensions
.ARB_texture_env_combine
) {
1033 *params
= (GLint
) texUnit
->Combine
.SourceRGB
[1];
1036 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)");
1039 case GL_SOURCE2_RGB
:
1040 if (ctx
->Extensions
.EXT_texture_env_combine
||
1041 ctx
->Extensions
.ARB_texture_env_combine
) {
1042 *params
= (GLint
) texUnit
->Combine
.SourceRGB
[2];
1045 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)");
1048 case GL_SOURCE0_ALPHA
:
1049 if (ctx
->Extensions
.EXT_texture_env_combine
||
1050 ctx
->Extensions
.ARB_texture_env_combine
) {
1051 *params
= (GLint
) texUnit
->Combine
.SourceA
[0];
1054 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)");
1057 case GL_SOURCE1_ALPHA
:
1058 if (ctx
->Extensions
.EXT_texture_env_combine
||
1059 ctx
->Extensions
.ARB_texture_env_combine
) {
1060 *params
= (GLint
) texUnit
->Combine
.SourceA
[1];
1063 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)");
1066 case GL_SOURCE2_ALPHA
:
1067 if (ctx
->Extensions
.EXT_texture_env_combine
||
1068 ctx
->Extensions
.ARB_texture_env_combine
) {
1069 *params
= (GLint
) texUnit
->Combine
.SourceA
[2];
1072 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)");
1075 case GL_OPERAND0_RGB
:
1076 if (ctx
->Extensions
.EXT_texture_env_combine
||
1077 ctx
->Extensions
.ARB_texture_env_combine
) {
1078 *params
= (GLint
) texUnit
->Combine
.OperandRGB
[0];
1081 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)");
1084 case GL_OPERAND1_RGB
:
1085 if (ctx
->Extensions
.EXT_texture_env_combine
||
1086 ctx
->Extensions
.ARB_texture_env_combine
) {
1087 *params
= (GLint
) texUnit
->Combine
.OperandRGB
[1];
1090 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)");
1093 case GL_OPERAND2_RGB
:
1094 if (ctx
->Extensions
.EXT_texture_env_combine
||
1095 ctx
->Extensions
.ARB_texture_env_combine
) {
1096 *params
= (GLint
) texUnit
->Combine
.OperandRGB
[2];
1099 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)");
1102 case GL_OPERAND0_ALPHA
:
1103 if (ctx
->Extensions
.EXT_texture_env_combine
||
1104 ctx
->Extensions
.ARB_texture_env_combine
) {
1105 *params
= (GLint
) texUnit
->Combine
.OperandA
[0];
1108 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)");
1111 case GL_OPERAND1_ALPHA
:
1112 if (ctx
->Extensions
.EXT_texture_env_combine
||
1113 ctx
->Extensions
.ARB_texture_env_combine
) {
1114 *params
= (GLint
) texUnit
->Combine
.OperandA
[1];
1117 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)");
1120 case GL_OPERAND2_ALPHA
:
1121 if (ctx
->Extensions
.EXT_texture_env_combine
||
1122 ctx
->Extensions
.ARB_texture_env_combine
) {
1123 *params
= (GLint
) texUnit
->Combine
.OperandA
[2];
1126 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)");
1130 if (ctx
->Extensions
.EXT_texture_env_combine
||
1131 ctx
->Extensions
.ARB_texture_env_combine
) {
1132 if (texUnit
->Combine
.ScaleShiftRGB
== 0)
1134 else if (texUnit
->Combine
.ScaleShiftRGB
== 1)
1140 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)");
1144 case GL_ALPHA_SCALE
:
1145 if (ctx
->Extensions
.EXT_texture_env_combine
||
1146 ctx
->Extensions
.ARB_texture_env_combine
) {
1147 if (texUnit
->Combine
.ScaleShiftA
== 0)
1149 else if (texUnit
->Combine
.ScaleShiftA
== 1)
1155 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)");
1160 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname=0x%x)",
1164 else if (target
== GL_TEXTURE_FILTER_CONTROL_EXT
) {
1165 /* GL_EXT_texture_lod_bias */
1166 if (!ctx
->Extensions
.EXT_texture_lod_bias
) {
1167 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(target)" );
1170 if (pname
== GL_TEXTURE_LOD_BIAS_EXT
) {
1171 *params
= (GLint
) texUnit
->LodBias
;
1174 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)" );
1178 else if (target
== GL_POINT_SPRITE_NV
) {
1179 /* GL_ARB_point_sprite / GL_NV_point_sprite */
1180 if (!ctx
->Extensions
.NV_point_sprite
1181 && !ctx
->Extensions
.ARB_point_sprite
) {
1182 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(target)" );
1185 if (pname
== GL_COORD_REPLACE_NV
) {
1186 *params
= (GLint
) ctx
->Point
.CoordReplace
[ctx
->Texture
.CurrentUnit
];
1189 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(pname)" );
1194 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexEnviv(target)" );
1202 /**********************************************************************/
1203 /* Texture Parameters */
1204 /**********************************************************************/
1207 _mesa_validate_texture_wrap_mode(GLcontext
* ctx
,
1208 GLenum target
, GLenum eparam
)
1210 const struct gl_extensions
* const e
= & ctx
->Extensions
;
1212 if (eparam
== GL_CLAMP
|| eparam
== GL_CLAMP_TO_EDGE
||
1213 (eparam
== GL_CLAMP_TO_BORDER
&& e
->ARB_texture_border_clamp
)) {
1214 /* any texture target */
1217 else if (target
!= GL_TEXTURE_RECTANGLE_NV
&&
1218 (eparam
== GL_REPEAT
||
1219 (eparam
== GL_MIRRORED_REPEAT
&&
1220 e
->ARB_texture_mirrored_repeat
) ||
1221 (eparam
== GL_MIRROR_CLAMP_EXT
&&
1222 (e
->ATI_texture_mirror_once
|| e
->EXT_texture_mirror_clamp
)) ||
1223 (eparam
== GL_MIRROR_CLAMP_TO_EDGE_EXT
&&
1224 (e
->ATI_texture_mirror_once
|| e
->EXT_texture_mirror_clamp
)) ||
1225 (eparam
== GL_MIRROR_CLAMP_TO_BORDER_EXT
&&
1226 (e
->EXT_texture_mirror_clamp
)))) {
1227 /* non-rectangle texture */
1231 _mesa_error( ctx
, GL_INVALID_VALUE
, "glTexParameter(param)" );
1237 _mesa_TexParameterf( GLenum target
, GLenum pname
, GLfloat param
)
1239 _mesa_TexParameterfv(target
, pname
, ¶m
);
1244 _mesa_TexParameterfv( GLenum target
, GLenum pname
, const GLfloat
*params
)
1246 GET_CURRENT_CONTEXT(ctx
);
1247 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1248 GLenum eparam
= (GLenum
) (GLint
) params
[0];
1249 struct gl_texture_object
*texObj
;
1250 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1252 if (MESA_VERBOSE
&(VERBOSE_API
|VERBOSE_TEXTURE
))
1253 _mesa_debug(ctx
, "glTexParameter %s %s %.1f(%s)...\n",
1254 _mesa_lookup_enum_by_nr(target
),
1255 _mesa_lookup_enum_by_nr(pname
),
1257 _mesa_lookup_enum_by_nr(eparam
));
1262 texObj
= texUnit
->Current1D
;
1265 texObj
= texUnit
->Current2D
;
1268 texObj
= texUnit
->Current3D
;
1270 case GL_TEXTURE_CUBE_MAP
:
1271 if (!ctx
->Extensions
.ARB_texture_cube_map
) {
1272 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexParameter(target)" );
1275 texObj
= texUnit
->CurrentCubeMap
;
1277 case GL_TEXTURE_RECTANGLE_NV
:
1278 if (!ctx
->Extensions
.NV_texture_rectangle
) {
1279 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexParameter(target)" );
1282 texObj
= texUnit
->CurrentRect
;
1285 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexParameter(target)" );
1290 case GL_TEXTURE_MIN_FILTER
:
1291 /* A small optimization */
1292 if (texObj
->MinFilter
== eparam
)
1294 if (eparam
==GL_NEAREST
|| eparam
==GL_LINEAR
) {
1295 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1296 texObj
->MinFilter
= eparam
;
1298 else if ((eparam
==GL_NEAREST_MIPMAP_NEAREST
||
1299 eparam
==GL_LINEAR_MIPMAP_NEAREST
||
1300 eparam
==GL_NEAREST_MIPMAP_LINEAR
||
1301 eparam
==GL_LINEAR_MIPMAP_LINEAR
) &&
1302 texObj
->Target
!= GL_TEXTURE_RECTANGLE_NV
) {
1303 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1304 texObj
->MinFilter
= eparam
;
1307 _mesa_error( ctx
, GL_INVALID_VALUE
, "glTexParameter(param)" );
1311 case GL_TEXTURE_MAG_FILTER
:
1312 /* A small optimization */
1313 if (texObj
->MagFilter
== eparam
)
1316 if (eparam
==GL_NEAREST
|| eparam
==GL_LINEAR
) {
1317 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1318 texObj
->MagFilter
= eparam
;
1321 _mesa_error( ctx
, GL_INVALID_VALUE
, "glTexParameter(param)" );
1325 case GL_TEXTURE_WRAP_S
:
1326 if (texObj
->WrapS
== eparam
)
1328 if (_mesa_validate_texture_wrap_mode(ctx
, texObj
->Target
, eparam
)) {
1329 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1330 texObj
->WrapS
= eparam
;
1336 case GL_TEXTURE_WRAP_T
:
1337 if (texObj
->WrapT
== eparam
)
1339 if (_mesa_validate_texture_wrap_mode(ctx
, texObj
->Target
, eparam
)) {
1340 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1341 texObj
->WrapT
= eparam
;
1347 case GL_TEXTURE_WRAP_R
:
1348 if (texObj
->WrapR
== eparam
)
1350 if (_mesa_validate_texture_wrap_mode(ctx
, texObj
->Target
, eparam
)) {
1351 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1352 texObj
->WrapR
= eparam
;
1358 case GL_TEXTURE_BORDER_COLOR
:
1359 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1360 texObj
->BorderColor
[RCOMP
] = params
[0];
1361 texObj
->BorderColor
[GCOMP
] = params
[1];
1362 texObj
->BorderColor
[BCOMP
] = params
[2];
1363 texObj
->BorderColor
[ACOMP
] = params
[3];
1364 UNCLAMPED_FLOAT_TO_CHAN(texObj
->_BorderChan
[RCOMP
], params
[0]);
1365 UNCLAMPED_FLOAT_TO_CHAN(texObj
->_BorderChan
[GCOMP
], params
[1]);
1366 UNCLAMPED_FLOAT_TO_CHAN(texObj
->_BorderChan
[BCOMP
], params
[2]);
1367 UNCLAMPED_FLOAT_TO_CHAN(texObj
->_BorderChan
[ACOMP
], params
[3]);
1369 case GL_TEXTURE_MIN_LOD
:
1370 if (texObj
->MinLod
== params
[0])
1372 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1373 texObj
->MinLod
= params
[0];
1375 case GL_TEXTURE_MAX_LOD
:
1376 if (texObj
->MaxLod
== params
[0])
1378 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1379 texObj
->MaxLod
= params
[0];
1381 case GL_TEXTURE_BASE_LEVEL
:
1382 if (params
[0] < 0.0) {
1383 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexParameter(param)" );
1386 if (target
== GL_TEXTURE_RECTANGLE_NV
&& params
[0] != 0.0) {
1387 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexParameter(param)" );
1390 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1391 texObj
->BaseLevel
= (GLint
) params
[0];
1393 case GL_TEXTURE_MAX_LEVEL
:
1394 if (params
[0] < 0.0) {
1395 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexParameter(param)" );
1398 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1399 texObj
->MaxLevel
= (GLint
) params
[0];
1401 case GL_TEXTURE_PRIORITY
:
1402 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1403 texObj
->Priority
= CLAMP( params
[0], 0.0F
, 1.0F
);
1405 case GL_TEXTURE_MAX_ANISOTROPY_EXT
:
1406 if (ctx
->Extensions
.EXT_texture_filter_anisotropic
) {
1407 if (params
[0] < 1.0) {
1408 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexParameter(param)" );
1411 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1412 /* clamp to max, that's what NVIDIA does */
1413 texObj
->MaxAnisotropy
= MIN2(params
[0],
1414 ctx
->Const
.MaxTextureMaxAnisotropy
);
1417 _mesa_error(ctx
, GL_INVALID_ENUM
,
1418 "glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)");
1422 case GL_TEXTURE_COMPARE_SGIX
:
1423 if (ctx
->Extensions
.SGIX_shadow
) {
1424 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1425 texObj
->CompareFlag
= params
[0] ? GL_TRUE
: GL_FALSE
;
1428 _mesa_error(ctx
, GL_INVALID_ENUM
,
1429 "glTexParameter(pname=GL_TEXTURE_COMPARE_SGIX)");
1433 case GL_TEXTURE_COMPARE_OPERATOR_SGIX
:
1434 if (ctx
->Extensions
.SGIX_shadow
) {
1435 GLenum op
= (GLenum
) params
[0];
1436 if (op
== GL_TEXTURE_LEQUAL_R_SGIX
||
1437 op
== GL_TEXTURE_GEQUAL_R_SGIX
) {
1438 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1439 texObj
->CompareOperator
= op
;
1442 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexParameter(param)");
1446 _mesa_error(ctx
, GL_INVALID_ENUM
,
1447 "glTexParameter(pname=GL_TEXTURE_COMPARE_OPERATOR_SGIX)");
1451 case GL_SHADOW_AMBIENT_SGIX
: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */
1452 if (ctx
->Extensions
.SGIX_shadow_ambient
) {
1453 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1454 texObj
->ShadowAmbient
= CLAMP(params
[0], 0.0F
, 1.0F
);
1457 _mesa_error(ctx
, GL_INVALID_ENUM
,
1458 "glTexParameter(pname=GL_SHADOW_AMBIENT_SGIX)");
1462 case GL_GENERATE_MIPMAP_SGIS
:
1463 if (ctx
->Extensions
.SGIS_generate_mipmap
) {
1464 texObj
->GenerateMipmap
= params
[0] ? GL_TRUE
: GL_FALSE
;
1467 _mesa_error(ctx
, GL_INVALID_ENUM
,
1468 "glTexParameter(pname=GL_GENERATE_MIPMAP_SGIS)");
1472 case GL_TEXTURE_COMPARE_MODE_ARB
:
1473 if (ctx
->Extensions
.ARB_shadow
) {
1474 const GLenum mode
= (GLenum
) params
[0];
1475 if (mode
== GL_NONE
|| mode
== GL_COMPARE_R_TO_TEXTURE_ARB
) {
1476 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1477 texObj
->CompareMode
= mode
;
1480 _mesa_error(ctx
, GL_INVALID_ENUM
,
1481 "glTexParameter(bad GL_TEXTURE_COMPARE_MODE_ARB: 0x%x)", mode
);
1486 _mesa_error(ctx
, GL_INVALID_ENUM
,
1487 "glTexParameter(pname=GL_TEXTURE_COMPARE_MODE_ARB)");
1491 case GL_TEXTURE_COMPARE_FUNC_ARB
:
1492 if (ctx
->Extensions
.ARB_shadow
) {
1493 const GLenum func
= (GLenum
) params
[0];
1494 if (func
== GL_LEQUAL
|| func
== GL_GEQUAL
) {
1495 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1496 texObj
->CompareFunc
= func
;
1498 else if (ctx
->Extensions
.EXT_shadow_funcs
&&
1499 (func
== GL_EQUAL
||
1500 func
== GL_NOTEQUAL
||
1502 func
== GL_GREATER
||
1503 func
== GL_ALWAYS
||
1504 func
== GL_NEVER
)) {
1505 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1506 texObj
->CompareFunc
= func
;
1509 _mesa_error(ctx
, GL_INVALID_ENUM
,
1510 "glTexParameter(bad GL_TEXTURE_COMPARE_FUNC_ARB)");
1515 _mesa_error(ctx
, GL_INVALID_ENUM
,
1516 "glTexParameter(pname=GL_TEXTURE_COMPARE_FUNC_ARB)");
1520 case GL_DEPTH_TEXTURE_MODE_ARB
:
1521 if (ctx
->Extensions
.ARB_depth_texture
) {
1522 const GLenum result
= (GLenum
) params
[0];
1523 if (result
== GL_LUMINANCE
|| result
== GL_INTENSITY
1524 || result
== GL_ALPHA
) {
1525 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1526 texObj
->DepthMode
= result
;
1529 _mesa_error(ctx
, GL_INVALID_ENUM
,
1530 "glTexParameter(bad GL_DEPTH_TEXTURE_MODE_ARB)");
1535 _mesa_error(ctx
, GL_INVALID_ENUM
,
1536 "glTexParameter(pname=GL_DEPTH_TEXTURE_MODE_ARB)");
1540 case GL_TEXTURE_LOD_BIAS
:
1541 /* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias*/
1542 if (ctx
->Extensions
.EXT_texture_lod_bias
) {
1543 if (texObj
->LodBias
!= params
[0]) {
1544 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1545 texObj
->LodBias
= params
[0];
1551 _mesa_error(ctx
, GL_INVALID_ENUM
,
1552 "glTexParameter(pname=0x%x)", pname
);
1556 texObj
->Complete
= GL_FALSE
;
1558 if (ctx
->Driver
.TexParameter
) {
1559 (*ctx
->Driver
.TexParameter
)( ctx
, target
, texObj
, pname
, params
);
1565 _mesa_TexParameteri( GLenum target
, GLenum pname
, GLint param
)
1568 if (pname
== GL_TEXTURE_PRIORITY
)
1569 fparam
[0] = INT_TO_FLOAT(param
);
1571 fparam
[0] = (GLfloat
) param
;
1572 fparam
[1] = fparam
[2] = fparam
[3] = 0.0;
1573 _mesa_TexParameterfv(target
, pname
, fparam
);
1578 _mesa_TexParameteriv( GLenum target
, GLenum pname
, const GLint
*params
)
1581 if (pname
== GL_TEXTURE_BORDER_COLOR
) {
1582 fparam
[0] = INT_TO_FLOAT(params
[0]);
1583 fparam
[1] = INT_TO_FLOAT(params
[1]);
1584 fparam
[2] = INT_TO_FLOAT(params
[2]);
1585 fparam
[3] = INT_TO_FLOAT(params
[3]);
1588 if (pname
== GL_TEXTURE_PRIORITY
)
1589 fparam
[0] = INT_TO_FLOAT(params
[0]);
1591 fparam
[0] = (GLfloat
) params
[0];
1592 fparam
[1] = fparam
[2] = fparam
[3] = 0.0F
;
1594 _mesa_TexParameterfv(target
, pname
, fparam
);
1599 _mesa_GetTexLevelParameterfv( GLenum target
, GLint level
,
1600 GLenum pname
, GLfloat
*params
)
1603 _mesa_GetTexLevelParameteriv( target
, level
, pname
, &iparam
);
1604 *params
= (GLfloat
) iparam
;
1609 tex_image_dimensions(GLcontext
*ctx
, GLenum target
)
1613 case GL_PROXY_TEXTURE_1D
:
1616 case GL_PROXY_TEXTURE_2D
:
1619 case GL_PROXY_TEXTURE_3D
:
1621 case GL_TEXTURE_CUBE_MAP
:
1622 case GL_PROXY_TEXTURE_CUBE_MAP
:
1623 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1624 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1625 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1626 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1627 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1628 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1629 return ctx
->Extensions
.ARB_texture_cube_map
? 2 : 0;
1630 case GL_TEXTURE_RECTANGLE_NV
:
1631 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1632 return ctx
->Extensions
.NV_texture_rectangle
? 2 : 0;
1634 _mesa_problem(ctx
, "bad target in _mesa_tex_target_dimensions()");
1641 _mesa_GetTexLevelParameteriv( GLenum target
, GLint level
,
1642 GLenum pname
, GLint
*params
)
1644 GET_CURRENT_CONTEXT(ctx
);
1645 const struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1646 const struct gl_texture_image
*img
= NULL
;
1650 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1652 /* this will catch bad target values */
1653 dimensions
= tex_image_dimensions(ctx
, target
); /* 1, 2 or 3 */
1654 if (dimensions
== 0) {
1655 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexLevelParameter[if]v(target)");
1661 case GL_PROXY_TEXTURE_1D
:
1663 case GL_PROXY_TEXTURE_2D
:
1664 maxLevels
= ctx
->Const
.MaxTextureLevels
;
1667 case GL_PROXY_TEXTURE_3D
:
1668 maxLevels
= ctx
->Const
.Max3DTextureLevels
;
1670 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1671 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1672 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1673 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1674 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1675 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1676 case GL_PROXY_TEXTURE_CUBE_MAP
:
1677 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
1679 case GL_TEXTURE_RECTANGLE_NV
:
1680 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1684 _mesa_problem(ctx
, "switch in _mesa_GetTexLevelParameter");
1688 if (level
< 0 || level
>= maxLevels
) {
1689 _mesa_error( ctx
, GL_INVALID_VALUE
, "glGetTexLevelParameter[if]v" );
1693 img
= _mesa_select_tex_image(ctx
, texUnit
, target
, level
);
1694 if (!img
|| !img
->TexFormat
) {
1695 /* undefined texture image */
1696 if (pname
== GL_TEXTURE_COMPONENTS
)
1703 isProxy
= (target
== GL_PROXY_TEXTURE_1D
) ||
1704 (target
== GL_PROXY_TEXTURE_2D
) ||
1705 (target
== GL_PROXY_TEXTURE_3D
) ||
1706 (target
== GL_PROXY_TEXTURE_CUBE_MAP
) ||
1707 (target
== GL_PROXY_TEXTURE_RECTANGLE_NV
);
1710 case GL_TEXTURE_WIDTH
:
1711 *params
= img
->Width
;
1713 case GL_TEXTURE_HEIGHT
:
1714 *params
= img
->Height
;
1716 case GL_TEXTURE_DEPTH
:
1717 *params
= img
->Depth
;
1719 case GL_TEXTURE_INTERNAL_FORMAT
:
1720 *params
= img
->IntFormat
;
1722 case GL_TEXTURE_BORDER
:
1723 *params
= img
->Border
;
1725 case GL_TEXTURE_RED_SIZE
:
1726 if (img
->Format
== GL_RGB
|| img
->Format
== GL_RGBA
)
1727 *params
= img
->TexFormat
->RedBits
;
1731 case GL_TEXTURE_GREEN_SIZE
:
1732 if (img
->Format
== GL_RGB
|| img
->Format
== GL_RGBA
)
1733 *params
= img
->TexFormat
->GreenBits
;
1737 case GL_TEXTURE_BLUE_SIZE
:
1738 if (img
->Format
== GL_RGB
|| img
->Format
== GL_RGBA
)
1739 *params
= img
->TexFormat
->BlueBits
;
1743 case GL_TEXTURE_ALPHA_SIZE
:
1744 if (img
->Format
== GL_ALPHA
|| img
->Format
== GL_LUMINANCE_ALPHA
||
1745 img
->Format
== GL_RGBA
)
1746 *params
= img
->TexFormat
->AlphaBits
;
1750 case GL_TEXTURE_INTENSITY_SIZE
:
1751 if (img
->Format
!= GL_INTENSITY
)
1753 else if (img
->TexFormat
->IntensityBits
> 0)
1754 *params
= img
->TexFormat
->IntensityBits
;
1755 else /* intensity probably stored as rgb texture */
1756 *params
= MIN2(img
->TexFormat
->RedBits
, img
->TexFormat
->GreenBits
);
1758 case GL_TEXTURE_LUMINANCE_SIZE
:
1759 if (img
->Format
!= GL_LUMINANCE
&&
1760 img
->Format
!= GL_LUMINANCE_ALPHA
)
1762 else if (img
->TexFormat
->LuminanceBits
> 0)
1763 *params
= img
->TexFormat
->LuminanceBits
;
1764 else /* luminance probably stored as rgb texture */
1765 *params
= MIN2(img
->TexFormat
->RedBits
, img
->TexFormat
->GreenBits
);
1767 case GL_TEXTURE_INDEX_SIZE_EXT
:
1768 if (img
->Format
== GL_COLOR_INDEX
)
1769 *params
= img
->TexFormat
->IndexBits
;
1773 case GL_TEXTURE_DEPTH_SIZE_ARB
:
1774 if (ctx
->Extensions
.SGIX_depth_texture
||
1775 ctx
->Extensions
.ARB_depth_texture
)
1776 *params
= img
->TexFormat
->DepthBits
;
1778 _mesa_error(ctx
, GL_INVALID_ENUM
,
1779 "glGetTexLevelParameter[if]v(pname)");
1781 case GL_TEXTURE_STENCIL_SIZE_EXT
:
1782 if (ctx
->Extensions
.EXT_packed_depth_stencil
) {
1783 *params
= img
->TexFormat
->StencilBits
;
1786 _mesa_error(ctx
, GL_INVALID_ENUM
,
1787 "glGetTexLevelParameter[if]v(pname)");
1791 /* GL_ARB_texture_compression */
1792 case GL_TEXTURE_COMPRESSED_IMAGE_SIZE
:
1793 if (ctx
->Extensions
.ARB_texture_compression
) {
1794 if (img
->IsCompressed
&& !isProxy
)
1795 *params
= img
->CompressedSize
;
1797 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1798 "glGetTexLevelParameter[if]v(pname)");
1801 _mesa_error(ctx
, GL_INVALID_ENUM
,
1802 "glGetTexLevelParameter[if]v(pname)");
1805 case GL_TEXTURE_COMPRESSED
:
1806 if (ctx
->Extensions
.ARB_texture_compression
) {
1807 *params
= (GLint
) img
->IsCompressed
;
1810 _mesa_error(ctx
, GL_INVALID_ENUM
,
1811 "glGetTexLevelParameter[if]v(pname)");
1815 /* GL_ARB_texture_float */
1816 case GL_TEXTURE_RED_TYPE_ARB
:
1817 if (ctx
->Extensions
.ARB_texture_float
) {
1818 *params
= img
->TexFormat
->RedBits
? img
->TexFormat
->DataType
: GL_NONE
;
1821 _mesa_error(ctx
, GL_INVALID_ENUM
,
1822 "glGetTexLevelParameter[if]v(pname)");
1825 case GL_TEXTURE_GREEN_TYPE_ARB
:
1826 if (ctx
->Extensions
.ARB_texture_float
) {
1827 *params
= img
->TexFormat
->GreenBits
? img
->TexFormat
->DataType
: GL_NONE
;
1830 _mesa_error(ctx
, GL_INVALID_ENUM
,
1831 "glGetTexLevelParameter[if]v(pname)");
1834 case GL_TEXTURE_BLUE_TYPE_ARB
:
1835 if (ctx
->Extensions
.ARB_texture_float
) {
1836 *params
= img
->TexFormat
->BlueBits
? img
->TexFormat
->DataType
: GL_NONE
;
1839 _mesa_error(ctx
, GL_INVALID_ENUM
,
1840 "glGetTexLevelParameter[if]v(pname)");
1843 case GL_TEXTURE_ALPHA_TYPE_ARB
:
1844 if (ctx
->Extensions
.ARB_texture_float
) {
1845 *params
= img
->TexFormat
->AlphaBits
? img
->TexFormat
->DataType
: GL_NONE
;
1848 _mesa_error(ctx
, GL_INVALID_ENUM
,
1849 "glGetTexLevelParameter[if]v(pname)");
1852 case GL_TEXTURE_LUMINANCE_TYPE_ARB
:
1853 if (ctx
->Extensions
.ARB_texture_float
) {
1854 *params
= img
->TexFormat
->LuminanceBits
? img
->TexFormat
->DataType
: GL_NONE
;
1857 _mesa_error(ctx
, GL_INVALID_ENUM
,
1858 "glGetTexLevelParameter[if]v(pname)");
1861 case GL_TEXTURE_INTENSITY_TYPE_ARB
:
1862 if (ctx
->Extensions
.ARB_texture_float
) {
1863 *params
= img
->TexFormat
->IntensityBits
? img
->TexFormat
->DataType
: GL_NONE
;
1866 _mesa_error(ctx
, GL_INVALID_ENUM
,
1867 "glGetTexLevelParameter[if]v(pname)");
1870 case GL_TEXTURE_DEPTH_TYPE_ARB
:
1871 if (ctx
->Extensions
.ARB_texture_float
) {
1872 *params
= img
->TexFormat
->DepthBits
? img
->TexFormat
->DataType
: GL_NONE
;
1875 _mesa_error(ctx
, GL_INVALID_ENUM
,
1876 "glGetTexLevelParameter[if]v(pname)");
1881 _mesa_error(ctx
, GL_INVALID_ENUM
,
1882 "glGetTexLevelParameter[if]v(pname)");
1889 _mesa_GetTexParameterfv( GLenum target
, GLenum pname
, GLfloat
*params
)
1891 GET_CURRENT_CONTEXT(ctx
);
1892 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1893 struct gl_texture_object
*obj
;
1894 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1896 obj
= _mesa_select_tex_object(ctx
, texUnit
, target
);
1898 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexParameterfv(target)");
1903 case GL_TEXTURE_MAG_FILTER
:
1904 *params
= ENUM_TO_FLOAT(obj
->MagFilter
);
1906 case GL_TEXTURE_MIN_FILTER
:
1907 *params
= ENUM_TO_FLOAT(obj
->MinFilter
);
1909 case GL_TEXTURE_WRAP_S
:
1910 *params
= ENUM_TO_FLOAT(obj
->WrapS
);
1912 case GL_TEXTURE_WRAP_T
:
1913 *params
= ENUM_TO_FLOAT(obj
->WrapT
);
1915 case GL_TEXTURE_WRAP_R
:
1916 *params
= ENUM_TO_FLOAT(obj
->WrapR
);
1918 case GL_TEXTURE_BORDER_COLOR
:
1919 params
[0] = CLAMP(obj
->BorderColor
[0], 0.0F
, 1.0F
);
1920 params
[1] = CLAMP(obj
->BorderColor
[1], 0.0F
, 1.0F
);
1921 params
[2] = CLAMP(obj
->BorderColor
[2], 0.0F
, 1.0F
);
1922 params
[3] = CLAMP(obj
->BorderColor
[3], 0.0F
, 1.0F
);
1924 case GL_TEXTURE_RESIDENT
:
1927 if (ctx
->Driver
.IsTextureResident
)
1928 resident
= ctx
->Driver
.IsTextureResident(ctx
, obj
);
1931 *params
= ENUM_TO_FLOAT(resident
);
1934 case GL_TEXTURE_PRIORITY
:
1935 *params
= obj
->Priority
;
1937 case GL_TEXTURE_MIN_LOD
:
1938 *params
= obj
->MinLod
;
1940 case GL_TEXTURE_MAX_LOD
:
1941 *params
= obj
->MaxLod
;
1943 case GL_TEXTURE_BASE_LEVEL
:
1944 *params
= (GLfloat
) obj
->BaseLevel
;
1946 case GL_TEXTURE_MAX_LEVEL
:
1947 *params
= (GLfloat
) obj
->MaxLevel
;
1949 case GL_TEXTURE_MAX_ANISOTROPY_EXT
:
1950 if (ctx
->Extensions
.EXT_texture_filter_anisotropic
) {
1951 *params
= obj
->MaxAnisotropy
;
1955 case GL_TEXTURE_COMPARE_SGIX
:
1956 if (ctx
->Extensions
.SGIX_shadow
) {
1957 *params
= (GLfloat
) obj
->CompareFlag
;
1961 case GL_TEXTURE_COMPARE_OPERATOR_SGIX
:
1962 if (ctx
->Extensions
.SGIX_shadow
) {
1963 *params
= (GLfloat
) obj
->CompareOperator
;
1967 case GL_SHADOW_AMBIENT_SGIX
: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */
1968 if (ctx
->Extensions
.SGIX_shadow_ambient
) {
1969 *params
= obj
->ShadowAmbient
;
1973 case GL_GENERATE_MIPMAP_SGIS
:
1974 if (ctx
->Extensions
.SGIS_generate_mipmap
) {
1975 *params
= (GLfloat
) obj
->GenerateMipmap
;
1979 case GL_TEXTURE_COMPARE_MODE_ARB
:
1980 if (ctx
->Extensions
.ARB_shadow
) {
1981 *params
= (GLfloat
) obj
->CompareMode
;
1985 case GL_TEXTURE_COMPARE_FUNC_ARB
:
1986 if (ctx
->Extensions
.ARB_shadow
) {
1987 *params
= (GLfloat
) obj
->CompareFunc
;
1991 case GL_DEPTH_TEXTURE_MODE_ARB
:
1992 if (ctx
->Extensions
.ARB_depth_texture
) {
1993 *params
= (GLfloat
) obj
->DepthMode
;
1997 case GL_TEXTURE_LOD_BIAS
:
1998 if (ctx
->Extensions
.EXT_texture_lod_bias
) {
1999 *params
= obj
->LodBias
;
2004 ; /* silence warnings */
2006 /* If we get here, pname was an unrecognized enum */
2007 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexParameterfv(pname=0x%x)",
2013 _mesa_GetTexParameteriv( GLenum target
, GLenum pname
, GLint
*params
)
2015 GET_CURRENT_CONTEXT(ctx
);
2016 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
2017 struct gl_texture_object
*obj
;
2018 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2020 obj
= _mesa_select_tex_object(ctx
, texUnit
, target
);
2022 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexParameteriv(target)");
2027 case GL_TEXTURE_MAG_FILTER
:
2028 *params
= (GLint
) obj
->MagFilter
;
2030 case GL_TEXTURE_MIN_FILTER
:
2031 *params
= (GLint
) obj
->MinFilter
;
2033 case GL_TEXTURE_WRAP_S
:
2034 *params
= (GLint
) obj
->WrapS
;
2036 case GL_TEXTURE_WRAP_T
:
2037 *params
= (GLint
) obj
->WrapT
;
2039 case GL_TEXTURE_WRAP_R
:
2040 *params
= (GLint
) obj
->WrapR
;
2042 case GL_TEXTURE_BORDER_COLOR
:
2045 b
[0] = CLAMP(obj
->BorderColor
[0], 0.0F
, 1.0F
);
2046 b
[1] = CLAMP(obj
->BorderColor
[1], 0.0F
, 1.0F
);
2047 b
[2] = CLAMP(obj
->BorderColor
[2], 0.0F
, 1.0F
);
2048 b
[3] = CLAMP(obj
->BorderColor
[3], 0.0F
, 1.0F
);
2049 params
[0] = FLOAT_TO_INT(b
[0]);
2050 params
[1] = FLOAT_TO_INT(b
[1]);
2051 params
[2] = FLOAT_TO_INT(b
[2]);
2052 params
[3] = FLOAT_TO_INT(b
[3]);
2055 case GL_TEXTURE_RESIDENT
:
2058 if (ctx
->Driver
.IsTextureResident
)
2059 resident
= ctx
->Driver
.IsTextureResident(ctx
, obj
);
2062 *params
= (GLint
) resident
;
2065 case GL_TEXTURE_PRIORITY
:
2066 *params
= FLOAT_TO_INT(obj
->Priority
);
2068 case GL_TEXTURE_MIN_LOD
:
2069 *params
= (GLint
) obj
->MinLod
;
2071 case GL_TEXTURE_MAX_LOD
:
2072 *params
= (GLint
) obj
->MaxLod
;
2074 case GL_TEXTURE_BASE_LEVEL
:
2075 *params
= obj
->BaseLevel
;
2077 case GL_TEXTURE_MAX_LEVEL
:
2078 *params
= obj
->MaxLevel
;
2080 case GL_TEXTURE_MAX_ANISOTROPY_EXT
:
2081 if (ctx
->Extensions
.EXT_texture_filter_anisotropic
) {
2082 *params
= (GLint
) obj
->MaxAnisotropy
;
2086 case GL_TEXTURE_COMPARE_SGIX
:
2087 if (ctx
->Extensions
.SGIX_shadow
) {
2088 *params
= (GLint
) obj
->CompareFlag
;
2092 case GL_TEXTURE_COMPARE_OPERATOR_SGIX
:
2093 if (ctx
->Extensions
.SGIX_shadow
) {
2094 *params
= (GLint
) obj
->CompareOperator
;
2098 case GL_SHADOW_AMBIENT_SGIX
: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */
2099 if (ctx
->Extensions
.SGIX_shadow_ambient
) {
2100 *params
= (GLint
) FLOAT_TO_INT(obj
->ShadowAmbient
);
2104 case GL_GENERATE_MIPMAP_SGIS
:
2105 if (ctx
->Extensions
.SGIS_generate_mipmap
) {
2106 *params
= (GLint
) obj
->GenerateMipmap
;
2110 case GL_TEXTURE_COMPARE_MODE_ARB
:
2111 if (ctx
->Extensions
.ARB_shadow
) {
2112 *params
= (GLint
) obj
->CompareMode
;
2116 case GL_TEXTURE_COMPARE_FUNC_ARB
:
2117 if (ctx
->Extensions
.ARB_shadow
) {
2118 *params
= (GLint
) obj
->CompareFunc
;
2122 case GL_DEPTH_TEXTURE_MODE_ARB
:
2123 if (ctx
->Extensions
.ARB_depth_texture
) {
2124 *params
= (GLint
) obj
->DepthMode
;
2128 case GL_TEXTURE_LOD_BIAS
:
2129 if (ctx
->Extensions
.EXT_texture_lod_bias
) {
2130 *params
= (GLint
) obj
->LodBias
;
2135 ; /* silence warnings */
2137 /* If we get here, pname was an unrecognized enum */
2138 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexParameteriv(pname=0x%x)", pname
);
2144 /**********************************************************************/
2145 /* Texture Coord Generation */
2146 /**********************************************************************/
2150 _mesa_TexGenfv( GLenum coord
, GLenum pname
, const GLfloat
*params
)
2152 GET_CURRENT_CONTEXT(ctx
);
2153 GLuint tUnit
= ctx
->Texture
.CurrentUnit
;
2154 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[tUnit
];
2155 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2157 if (MESA_VERBOSE
&(VERBOSE_API
|VERBOSE_TEXTURE
))
2158 _mesa_debug(ctx
, "glTexGen %s %s %.1f(%s)...\n",
2159 _mesa_lookup_enum_by_nr(coord
),
2160 _mesa_lookup_enum_by_nr(pname
),
2162 _mesa_lookup_enum_by_nr((GLenum
) (GLint
) *params
));
2166 if (pname
==GL_TEXTURE_GEN_MODE
) {
2167 GLenum mode
= (GLenum
) (GLint
) *params
;
2170 case GL_OBJECT_LINEAR
:
2171 bits
= TEXGEN_OBJ_LINEAR
;
2174 bits
= TEXGEN_EYE_LINEAR
;
2176 case GL_REFLECTION_MAP_NV
:
2177 bits
= TEXGEN_REFLECTION_MAP_NV
;
2179 case GL_NORMAL_MAP_NV
:
2180 bits
= TEXGEN_NORMAL_MAP_NV
;
2183 bits
= TEXGEN_SPHERE_MAP
;
2186 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexGenfv(param)" );
2189 if (texUnit
->GenModeS
== mode
)
2191 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
2192 texUnit
->GenModeS
= mode
;
2193 texUnit
->_GenBitS
= bits
;
2195 else if (pname
==GL_OBJECT_PLANE
) {
2196 if (TEST_EQ_4V(texUnit
->ObjectPlaneS
, params
))
2198 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
2199 texUnit
->ObjectPlaneS
[0] = params
[0];
2200 texUnit
->ObjectPlaneS
[1] = params
[1];
2201 texUnit
->ObjectPlaneS
[2] = params
[2];
2202 texUnit
->ObjectPlaneS
[3] = params
[3];
2204 else if (pname
==GL_EYE_PLANE
) {
2207 /* Transform plane equation by the inverse modelview matrix */
2208 if (_math_matrix_is_dirty(ctx
->ModelviewMatrixStack
.Top
)) {
2209 _math_matrix_analyse( ctx
->ModelviewMatrixStack
.Top
);
2211 _mesa_transform_vector( tmp
, params
, ctx
->ModelviewMatrixStack
.Top
->inv
);
2212 if (TEST_EQ_4V(texUnit
->EyePlaneS
, tmp
))
2214 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
2215 COPY_4FV(texUnit
->EyePlaneS
, tmp
);
2218 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexGenfv(pname)" );
2223 if (pname
==GL_TEXTURE_GEN_MODE
) {
2224 GLenum mode
= (GLenum
) (GLint
) *params
;
2227 case GL_OBJECT_LINEAR
:
2228 bitt
= TEXGEN_OBJ_LINEAR
;
2231 bitt
= TEXGEN_EYE_LINEAR
;
2233 case GL_REFLECTION_MAP_NV
:
2234 bitt
= TEXGEN_REFLECTION_MAP_NV
;
2236 case GL_NORMAL_MAP_NV
:
2237 bitt
= TEXGEN_NORMAL_MAP_NV
;
2240 bitt
= TEXGEN_SPHERE_MAP
;
2243 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexGenfv(param)" );
2246 if (texUnit
->GenModeT
== mode
)
2248 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
2249 texUnit
->GenModeT
= mode
;
2250 texUnit
->_GenBitT
= bitt
;
2252 else if (pname
==GL_OBJECT_PLANE
) {
2253 if (TEST_EQ_4V(texUnit
->ObjectPlaneT
, params
))
2255 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
2256 texUnit
->ObjectPlaneT
[0] = params
[0];
2257 texUnit
->ObjectPlaneT
[1] = params
[1];
2258 texUnit
->ObjectPlaneT
[2] = params
[2];
2259 texUnit
->ObjectPlaneT
[3] = params
[3];
2261 else if (pname
==GL_EYE_PLANE
) {
2263 /* Transform plane equation by the inverse modelview matrix */
2264 if (_math_matrix_is_dirty(ctx
->ModelviewMatrixStack
.Top
)) {
2265 _math_matrix_analyse( ctx
->ModelviewMatrixStack
.Top
);
2267 _mesa_transform_vector( tmp
, params
, ctx
->ModelviewMatrixStack
.Top
->inv
);
2268 if (TEST_EQ_4V(texUnit
->EyePlaneT
, tmp
))
2270 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
2271 COPY_4FV(texUnit
->EyePlaneT
, tmp
);
2274 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexGenfv(pname)" );
2279 if (pname
==GL_TEXTURE_GEN_MODE
) {
2280 GLenum mode
= (GLenum
) (GLint
) *params
;
2283 case GL_OBJECT_LINEAR
:
2284 bitr
= TEXGEN_OBJ_LINEAR
;
2286 case GL_REFLECTION_MAP_NV
:
2287 bitr
= TEXGEN_REFLECTION_MAP_NV
;
2289 case GL_NORMAL_MAP_NV
:
2290 bitr
= TEXGEN_NORMAL_MAP_NV
;
2293 bitr
= TEXGEN_EYE_LINEAR
;
2296 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexGenfv(param)" );
2299 if (texUnit
->GenModeR
== mode
)
2301 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
2302 texUnit
->GenModeR
= mode
;
2303 texUnit
->_GenBitR
= bitr
;
2305 else if (pname
==GL_OBJECT_PLANE
) {
2306 if (TEST_EQ_4V(texUnit
->ObjectPlaneR
, params
))
2308 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
2309 texUnit
->ObjectPlaneR
[0] = params
[0];
2310 texUnit
->ObjectPlaneR
[1] = params
[1];
2311 texUnit
->ObjectPlaneR
[2] = params
[2];
2312 texUnit
->ObjectPlaneR
[3] = params
[3];
2314 else if (pname
==GL_EYE_PLANE
) {
2316 /* Transform plane equation by the inverse modelview matrix */
2317 if (_math_matrix_is_dirty(ctx
->ModelviewMatrixStack
.Top
)) {
2318 _math_matrix_analyse( ctx
->ModelviewMatrixStack
.Top
);
2320 _mesa_transform_vector( tmp
, params
, ctx
->ModelviewMatrixStack
.Top
->inv
);
2321 if (TEST_EQ_4V(texUnit
->EyePlaneR
, tmp
))
2323 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
2324 COPY_4FV(texUnit
->EyePlaneR
, tmp
);
2327 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexGenfv(pname)" );
2332 if (pname
==GL_TEXTURE_GEN_MODE
) {
2333 GLenum mode
= (GLenum
) (GLint
) *params
;
2336 case GL_OBJECT_LINEAR
:
2337 bitq
= TEXGEN_OBJ_LINEAR
;
2340 bitq
= TEXGEN_EYE_LINEAR
;
2343 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexGenfv(param)" );
2346 if (texUnit
->GenModeQ
== mode
)
2348 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
2349 texUnit
->GenModeQ
= mode
;
2350 texUnit
->_GenBitQ
= bitq
;
2352 else if (pname
==GL_OBJECT_PLANE
) {
2353 if (TEST_EQ_4V(texUnit
->ObjectPlaneQ
, params
))
2355 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
2356 texUnit
->ObjectPlaneQ
[0] = params
[0];
2357 texUnit
->ObjectPlaneQ
[1] = params
[1];
2358 texUnit
->ObjectPlaneQ
[2] = params
[2];
2359 texUnit
->ObjectPlaneQ
[3] = params
[3];
2361 else if (pname
==GL_EYE_PLANE
) {
2363 /* Transform plane equation by the inverse modelview matrix */
2364 if (_math_matrix_is_dirty(ctx
->ModelviewMatrixStack
.Top
)) {
2365 _math_matrix_analyse( ctx
->ModelviewMatrixStack
.Top
);
2367 _mesa_transform_vector( tmp
, params
, ctx
->ModelviewMatrixStack
.Top
->inv
);
2368 if (TEST_EQ_4V(texUnit
->EyePlaneQ
, tmp
))
2370 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
2371 COPY_4FV(texUnit
->EyePlaneQ
, tmp
);
2374 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexGenfv(pname)" );
2379 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexGenfv(coord)" );
2383 if (ctx
->Driver
.TexGen
)
2384 ctx
->Driver
.TexGen( ctx
, coord
, pname
, params
);
2389 _mesa_TexGeniv(GLenum coord
, GLenum pname
, const GLint
*params
)
2392 p
[0] = (GLfloat
) params
[0];
2393 if (pname
== GL_TEXTURE_GEN_MODE
) {
2394 p
[1] = p
[2] = p
[3] = 0.0F
;
2397 p
[1] = (GLfloat
) params
[1];
2398 p
[2] = (GLfloat
) params
[2];
2399 p
[3] = (GLfloat
) params
[3];
2401 _mesa_TexGenfv(coord
, pname
, p
);
2406 _mesa_TexGend(GLenum coord
, GLenum pname
, GLdouble param
)
2408 GLfloat p
= (GLfloat
) param
;
2409 _mesa_TexGenfv( coord
, pname
, &p
);
2414 _mesa_TexGendv(GLenum coord
, GLenum pname
, const GLdouble
*params
)
2417 p
[0] = (GLfloat
) params
[0];
2418 if (pname
== GL_TEXTURE_GEN_MODE
) {
2419 p
[1] = p
[2] = p
[3] = 0.0F
;
2422 p
[1] = (GLfloat
) params
[1];
2423 p
[2] = (GLfloat
) params
[2];
2424 p
[3] = (GLfloat
) params
[3];
2426 _mesa_TexGenfv( coord
, pname
, p
);
2431 _mesa_TexGenf( GLenum coord
, GLenum pname
, GLfloat param
)
2433 _mesa_TexGenfv(coord
, pname
, ¶m
);
2438 _mesa_TexGeni( GLenum coord
, GLenum pname
, GLint param
)
2440 _mesa_TexGeniv( coord
, pname
, ¶m
);
2446 _mesa_GetTexGendv( GLenum coord
, GLenum pname
, GLdouble
*params
)
2448 GET_CURRENT_CONTEXT(ctx
);
2449 GLuint tUnit
= ctx
->Texture
.CurrentUnit
;
2450 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[tUnit
];
2451 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2455 if (pname
==GL_TEXTURE_GEN_MODE
) {
2456 params
[0] = ENUM_TO_DOUBLE(texUnit
->GenModeS
);
2458 else if (pname
==GL_OBJECT_PLANE
) {
2459 COPY_4V( params
, texUnit
->ObjectPlaneS
);
2461 else if (pname
==GL_EYE_PLANE
) {
2462 COPY_4V( params
, texUnit
->EyePlaneS
);
2465 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexGendv(pname)" );
2470 if (pname
==GL_TEXTURE_GEN_MODE
) {
2471 params
[0] = ENUM_TO_DOUBLE(texUnit
->GenModeT
);
2473 else if (pname
==GL_OBJECT_PLANE
) {
2474 COPY_4V( params
, texUnit
->ObjectPlaneT
);
2476 else if (pname
==GL_EYE_PLANE
) {
2477 COPY_4V( params
, texUnit
->EyePlaneT
);
2480 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexGendv(pname)" );
2485 if (pname
==GL_TEXTURE_GEN_MODE
) {
2486 params
[0] = ENUM_TO_DOUBLE(texUnit
->GenModeR
);
2488 else if (pname
==GL_OBJECT_PLANE
) {
2489 COPY_4V( params
, texUnit
->ObjectPlaneR
);
2491 else if (pname
==GL_EYE_PLANE
) {
2492 COPY_4V( params
, texUnit
->EyePlaneR
);
2495 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexGendv(pname)" );
2500 if (pname
==GL_TEXTURE_GEN_MODE
) {
2501 params
[0] = ENUM_TO_DOUBLE(texUnit
->GenModeQ
);
2503 else if (pname
==GL_OBJECT_PLANE
) {
2504 COPY_4V( params
, texUnit
->ObjectPlaneQ
);
2506 else if (pname
==GL_EYE_PLANE
) {
2507 COPY_4V( params
, texUnit
->EyePlaneQ
);
2510 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexGendv(pname)" );
2515 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexGendv(coord)" );
2523 _mesa_GetTexGenfv( GLenum coord
, GLenum pname
, GLfloat
*params
)
2525 GET_CURRENT_CONTEXT(ctx
);
2526 GLuint tUnit
= ctx
->Texture
.CurrentUnit
;
2527 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[tUnit
];
2528 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2532 if (pname
==GL_TEXTURE_GEN_MODE
) {
2533 params
[0] = ENUM_TO_FLOAT(texUnit
->GenModeS
);
2535 else if (pname
==GL_OBJECT_PLANE
) {
2536 COPY_4V( params
, texUnit
->ObjectPlaneS
);
2538 else if (pname
==GL_EYE_PLANE
) {
2539 COPY_4V( params
, texUnit
->EyePlaneS
);
2542 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexGenfv(pname)" );
2547 if (pname
==GL_TEXTURE_GEN_MODE
) {
2548 params
[0] = ENUM_TO_FLOAT(texUnit
->GenModeT
);
2550 else if (pname
==GL_OBJECT_PLANE
) {
2551 COPY_4V( params
, texUnit
->ObjectPlaneT
);
2553 else if (pname
==GL_EYE_PLANE
) {
2554 COPY_4V( params
, texUnit
->EyePlaneT
);
2557 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexGenfv(pname)" );
2562 if (pname
==GL_TEXTURE_GEN_MODE
) {
2563 params
[0] = ENUM_TO_FLOAT(texUnit
->GenModeR
);
2565 else if (pname
==GL_OBJECT_PLANE
) {
2566 COPY_4V( params
, texUnit
->ObjectPlaneR
);
2568 else if (pname
==GL_EYE_PLANE
) {
2569 COPY_4V( params
, texUnit
->EyePlaneR
);
2572 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexGenfv(pname)" );
2577 if (pname
==GL_TEXTURE_GEN_MODE
) {
2578 params
[0] = ENUM_TO_FLOAT(texUnit
->GenModeQ
);
2580 else if (pname
==GL_OBJECT_PLANE
) {
2581 COPY_4V( params
, texUnit
->ObjectPlaneQ
);
2583 else if (pname
==GL_EYE_PLANE
) {
2584 COPY_4V( params
, texUnit
->EyePlaneQ
);
2587 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexGenfv(pname)" );
2592 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexGenfv(coord)" );
2600 _mesa_GetTexGeniv( GLenum coord
, GLenum pname
, GLint
*params
)
2602 GET_CURRENT_CONTEXT(ctx
);
2603 GLuint tUnit
= ctx
->Texture
.CurrentUnit
;
2604 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[tUnit
];
2605 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2609 if (pname
==GL_TEXTURE_GEN_MODE
) {
2610 params
[0] = texUnit
->GenModeS
;
2612 else if (pname
==GL_OBJECT_PLANE
) {
2613 params
[0] = (GLint
) texUnit
->ObjectPlaneS
[0];
2614 params
[1] = (GLint
) texUnit
->ObjectPlaneS
[1];
2615 params
[2] = (GLint
) texUnit
->ObjectPlaneS
[2];
2616 params
[3] = (GLint
) texUnit
->ObjectPlaneS
[3];
2618 else if (pname
==GL_EYE_PLANE
) {
2619 params
[0] = (GLint
) texUnit
->EyePlaneS
[0];
2620 params
[1] = (GLint
) texUnit
->EyePlaneS
[1];
2621 params
[2] = (GLint
) texUnit
->EyePlaneS
[2];
2622 params
[3] = (GLint
) texUnit
->EyePlaneS
[3];
2625 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexGeniv(pname)" );
2630 if (pname
==GL_TEXTURE_GEN_MODE
) {
2631 params
[0] = texUnit
->GenModeT
;
2633 else if (pname
==GL_OBJECT_PLANE
) {
2634 params
[0] = (GLint
) texUnit
->ObjectPlaneT
[0];
2635 params
[1] = (GLint
) texUnit
->ObjectPlaneT
[1];
2636 params
[2] = (GLint
) texUnit
->ObjectPlaneT
[2];
2637 params
[3] = (GLint
) texUnit
->ObjectPlaneT
[3];
2639 else if (pname
==GL_EYE_PLANE
) {
2640 params
[0] = (GLint
) texUnit
->EyePlaneT
[0];
2641 params
[1] = (GLint
) texUnit
->EyePlaneT
[1];
2642 params
[2] = (GLint
) texUnit
->EyePlaneT
[2];
2643 params
[3] = (GLint
) texUnit
->EyePlaneT
[3];
2646 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexGeniv(pname)" );
2651 if (pname
==GL_TEXTURE_GEN_MODE
) {
2652 params
[0] = texUnit
->GenModeR
;
2654 else if (pname
==GL_OBJECT_PLANE
) {
2655 params
[0] = (GLint
) texUnit
->ObjectPlaneR
[0];
2656 params
[1] = (GLint
) texUnit
->ObjectPlaneR
[1];
2657 params
[2] = (GLint
) texUnit
->ObjectPlaneR
[2];
2658 params
[3] = (GLint
) texUnit
->ObjectPlaneR
[3];
2660 else if (pname
==GL_EYE_PLANE
) {
2661 params
[0] = (GLint
) texUnit
->EyePlaneR
[0];
2662 params
[1] = (GLint
) texUnit
->EyePlaneR
[1];
2663 params
[2] = (GLint
) texUnit
->EyePlaneR
[2];
2664 params
[3] = (GLint
) texUnit
->EyePlaneR
[3];
2667 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexGeniv(pname)" );
2672 if (pname
==GL_TEXTURE_GEN_MODE
) {
2673 params
[0] = texUnit
->GenModeQ
;
2675 else if (pname
==GL_OBJECT_PLANE
) {
2676 params
[0] = (GLint
) texUnit
->ObjectPlaneQ
[0];
2677 params
[1] = (GLint
) texUnit
->ObjectPlaneQ
[1];
2678 params
[2] = (GLint
) texUnit
->ObjectPlaneQ
[2];
2679 params
[3] = (GLint
) texUnit
->ObjectPlaneQ
[3];
2681 else if (pname
==GL_EYE_PLANE
) {
2682 params
[0] = (GLint
) texUnit
->EyePlaneQ
[0];
2683 params
[1] = (GLint
) texUnit
->EyePlaneQ
[1];
2684 params
[2] = (GLint
) texUnit
->EyePlaneQ
[2];
2685 params
[3] = (GLint
) texUnit
->EyePlaneQ
[3];
2688 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexGeniv(pname)" );
2693 _mesa_error( ctx
, GL_INVALID_ENUM
, "glGetTexGeniv(coord)" );
2699 /* GL_ARB_multitexture */
2701 _mesa_ActiveTextureARB( GLenum target
)
2703 GET_CURRENT_CONTEXT(ctx
);
2704 const GLuint texUnit
= target
- GL_TEXTURE0
;
2705 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2707 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2708 _mesa_debug(ctx
, "glActiveTexture %s\n",
2709 _mesa_lookup_enum_by_nr(target
));
2711 /* Cater for texture unit 0 is first, therefore use >= */
2712 if (texUnit
>= ctx
->Const
.MaxTextureUnits
) {
2713 _mesa_error(ctx
, GL_INVALID_ENUM
, "glActiveTexture(target)");
2717 if (ctx
->Texture
.CurrentUnit
== texUnit
)
2720 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
2722 ctx
->Texture
.CurrentUnit
= texUnit
;
2723 if (ctx
->Transform
.MatrixMode
== GL_TEXTURE
) {
2724 /* update current stack pointer */
2725 ctx
->CurrentStack
= &ctx
->TextureMatrixStack
[texUnit
];
2728 if (ctx
->Driver
.ActiveTexture
) {
2729 (*ctx
->Driver
.ActiveTexture
)( ctx
, (GLuint
) texUnit
);
2734 /* GL_ARB_multitexture */
2736 _mesa_ClientActiveTextureARB( GLenum target
)
2738 GET_CURRENT_CONTEXT(ctx
);
2739 GLuint texUnit
= target
- GL_TEXTURE0
;
2740 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2742 if (texUnit
> ctx
->Const
.MaxTextureUnits
) {
2743 _mesa_error(ctx
, GL_INVALID_ENUM
, "glClientActiveTexture(target)");
2747 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
2748 ctx
->Array
.ActiveTexture
= texUnit
;
2753 /**********************************************************************/
2754 /* Pixel Texgen Extensions */
2755 /**********************************************************************/
2758 _mesa_PixelTexGenSGIX(GLenum mode
)
2760 GLenum newRgbSource
, newAlphaSource
;
2761 GET_CURRENT_CONTEXT(ctx
);
2762 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2766 newRgbSource
= GL_PIXEL_GROUP_COLOR_SGIS
;
2767 newAlphaSource
= GL_PIXEL_GROUP_COLOR_SGIS
;
2770 newRgbSource
= GL_PIXEL_GROUP_COLOR_SGIS
;
2771 newAlphaSource
= GL_CURRENT_RASTER_COLOR
;
2774 newRgbSource
= GL_CURRENT_RASTER_COLOR
;
2775 newAlphaSource
= GL_PIXEL_GROUP_COLOR_SGIS
;
2778 newRgbSource
= GL_CURRENT_RASTER_COLOR
;
2779 newAlphaSource
= GL_CURRENT_RASTER_COLOR
;
2782 _mesa_error(ctx
, GL_INVALID_ENUM
, "glPixelTexGenSGIX(mode)");
2786 if (newRgbSource
== ctx
->Pixel
.FragmentRgbSource
&&
2787 newAlphaSource
== ctx
->Pixel
.FragmentAlphaSource
)
2790 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
2791 ctx
->Pixel
.FragmentRgbSource
= newRgbSource
;
2792 ctx
->Pixel
.FragmentAlphaSource
= newAlphaSource
;
2797 _mesa_PixelTexGenParameterfSGIS(GLenum target
, GLfloat value
)
2799 _mesa_PixelTexGenParameteriSGIS(target
, (GLint
) value
);
2804 _mesa_PixelTexGenParameterfvSGIS(GLenum target
, const GLfloat
*value
)
2806 _mesa_PixelTexGenParameteriSGIS(target
, (GLint
) *value
);
2811 _mesa_PixelTexGenParameteriSGIS(GLenum target
, GLint value
)
2813 GET_CURRENT_CONTEXT(ctx
);
2814 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2816 if (value
!= GL_CURRENT_RASTER_COLOR
&& value
!= GL_PIXEL_GROUP_COLOR_SGIS
) {
2817 _mesa_error(ctx
, GL_INVALID_ENUM
, "glPixelTexGenParameterSGIS(value)");
2822 case GL_PIXEL_FRAGMENT_RGB_SOURCE_SGIS
:
2823 if (ctx
->Pixel
.FragmentRgbSource
== (GLenum
) value
)
2825 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
2826 ctx
->Pixel
.FragmentRgbSource
= (GLenum
) value
;
2828 case GL_PIXEL_FRAGMENT_ALPHA_SOURCE_SGIS
:
2829 if (ctx
->Pixel
.FragmentAlphaSource
== (GLenum
) value
)
2831 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
2832 ctx
->Pixel
.FragmentAlphaSource
= (GLenum
) value
;
2835 _mesa_error(ctx
, GL_INVALID_ENUM
, "glPixelTexGenParameterSGIS(target)");
2842 _mesa_PixelTexGenParameterivSGIS(GLenum target
, const GLint
*value
)
2844 _mesa_PixelTexGenParameteriSGIS(target
, *value
);
2849 _mesa_GetPixelTexGenParameterfvSGIS(GLenum target
, GLfloat
*value
)
2851 GET_CURRENT_CONTEXT(ctx
);
2852 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2854 if (target
== GL_PIXEL_FRAGMENT_RGB_SOURCE_SGIS
) {
2855 *value
= (GLfloat
) ctx
->Pixel
.FragmentRgbSource
;
2857 else if (target
== GL_PIXEL_FRAGMENT_ALPHA_SOURCE_SGIS
) {
2858 *value
= (GLfloat
) ctx
->Pixel
.FragmentAlphaSource
;
2861 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetPixelTexGenParameterfvSGIS(target)");
2867 _mesa_GetPixelTexGenParameterivSGIS(GLenum target
, GLint
*value
)
2869 GET_CURRENT_CONTEXT(ctx
);
2870 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2872 if (target
== GL_PIXEL_FRAGMENT_RGB_SOURCE_SGIS
) {
2873 *value
= (GLint
) ctx
->Pixel
.FragmentRgbSource
;
2875 else if (target
== GL_PIXEL_FRAGMENT_ALPHA_SOURCE_SGIS
) {
2876 *value
= (GLint
) ctx
->Pixel
.FragmentAlphaSource
;
2879 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetPixelTexGenParameterivSGIS(target)");
2885 /**********************************************************************/
2886 /***** State management *****/
2887 /**********************************************************************/
2891 * \note This routine refers to derived texture attribute values to
2892 * compute the ENABLE_TEXMAT flags, but is only called on
2893 * _NEW_TEXTURE_MATRIX. On changes to _NEW_TEXTURE, the ENABLE_TEXMAT
2894 * flags are updated by _mesa_update_textures(), below.
2896 * \param ctx GL context.
2899 update_texture_matrices( GLcontext
*ctx
)
2903 ctx
->Texture
._TexMatEnabled
= 0;
2905 for (i
=0; i
< ctx
->Const
.MaxTextureUnits
; i
++) {
2906 if (_math_matrix_is_dirty(ctx
->TextureMatrixStack
[i
].Top
)) {
2907 _math_matrix_analyse( ctx
->TextureMatrixStack
[i
].Top
);
2909 if (ctx
->Texture
.Unit
[i
]._ReallyEnabled
&&
2910 ctx
->TextureMatrixStack
[i
].Top
->type
!= MATRIX_IDENTITY
)
2911 ctx
->Texture
._TexMatEnabled
|= ENABLE_TEXMAT(i
);
2913 if (ctx
->Driver
.TextureMatrix
)
2914 ctx
->Driver
.TextureMatrix( ctx
, i
, ctx
->TextureMatrixStack
[i
].Top
);
2923 * \note This routine refers to derived texture matrix values to
2924 * compute the ENABLE_TEXMAT flags, but is only called on
2925 * _NEW_TEXTURE. On changes to _NEW_TEXTURE_MATRIX, the ENABLE_TEXMAT
2926 * flags are updated by _mesa_update_texture_matrices, above.
2928 * \param ctx GL context.
2931 update_texture_state( GLcontext
*ctx
)
2935 ctx
->NewState
|= _NEW_TEXTURE
; /* TODO: only set this if there are
2939 ctx
->Texture
._EnabledUnits
= 0;
2940 ctx
->Texture
._GenFlags
= 0;
2941 ctx
->Texture
._TexMatEnabled
= 0;
2942 ctx
->Texture
._TexGenEnabled
= 0;
2944 /* Update texture unit state.
2945 * XXX this loop should probably be broken into separate loops for
2946 * texture coord units and texture image units.
2948 for (unit
= 0; unit
< ctx
->Const
.MaxTextureUnits
; unit
++) {
2949 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[unit
];
2950 GLbitfield enableBits
;
2952 texUnit
->_Current
= NULL
;
2953 texUnit
->_ReallyEnabled
= 0;
2954 texUnit
->_GenFlags
= 0;
2956 /* Get the bitmask of texture enables */
2957 if (ctx
->FragmentProgram
._Enabled
) {
2958 enableBits
= ctx
->FragmentProgram
.Current
->TexturesUsed
[unit
];
2961 if (!texUnit
->Enabled
)
2963 enableBits
= texUnit
->Enabled
;
2966 /* Look for the highest-priority texture target that's enabled and
2967 * complete. That's the one we'll use for texturing. If we're using
2968 * a fragment program we're guaranteed that bitcount(enabledBits) <= 1.
2970 if (enableBits
& TEXTURE_CUBE_BIT
) {
2971 struct gl_texture_object
*texObj
= texUnit
->CurrentCubeMap
;
2972 if (!texObj
->Complete
) {
2973 _mesa_test_texobj_completeness(ctx
, texObj
);
2975 if (texObj
->Complete
) {
2976 texUnit
->_ReallyEnabled
= TEXTURE_CUBE_BIT
;
2977 texUnit
->_Current
= texObj
;
2981 if (!texUnit
->_ReallyEnabled
&& (enableBits
& TEXTURE_3D_BIT
)) {
2982 struct gl_texture_object
*texObj
= texUnit
->Current3D
;
2983 if (!texObj
->Complete
) {
2984 _mesa_test_texobj_completeness(ctx
, texObj
);
2986 if (texObj
->Complete
) {
2987 texUnit
->_ReallyEnabled
= TEXTURE_3D_BIT
;
2988 texUnit
->_Current
= texObj
;
2992 if (!texUnit
->_ReallyEnabled
&& (enableBits
& TEXTURE_RECT_BIT
)) {
2993 struct gl_texture_object
*texObj
= texUnit
->CurrentRect
;
2994 if (!texObj
->Complete
) {
2995 _mesa_test_texobj_completeness(ctx
, texObj
);
2997 if (texObj
->Complete
) {
2998 texUnit
->_ReallyEnabled
= TEXTURE_RECT_BIT
;
2999 texUnit
->_Current
= texObj
;
3003 if (!texUnit
->_ReallyEnabled
&& (enableBits
& TEXTURE_2D_BIT
)) {
3004 struct gl_texture_object
*texObj
= texUnit
->Current2D
;
3005 if (!texObj
->Complete
) {
3006 _mesa_test_texobj_completeness(ctx
, texObj
);
3008 if (texObj
->Complete
) {
3009 texUnit
->_ReallyEnabled
= TEXTURE_2D_BIT
;
3010 texUnit
->_Current
= texObj
;
3014 if (!texUnit
->_ReallyEnabled
&& (enableBits
& TEXTURE_1D_BIT
)) {
3015 struct gl_texture_object
*texObj
= texUnit
->Current1D
;
3016 if (!texObj
->Complete
) {
3017 _mesa_test_texobj_completeness(ctx
, texObj
);
3019 if (texObj
->Complete
) {
3020 texUnit
->_ReallyEnabled
= TEXTURE_1D_BIT
;
3021 texUnit
->_Current
= texObj
;
3025 if (!texUnit
->_ReallyEnabled
) {
3029 if (texUnit
->_ReallyEnabled
)
3030 ctx
->Texture
._EnabledUnits
|= (1 << unit
);
3032 if (texUnit
->EnvMode
== GL_COMBINE
) {
3033 texUnit
->_CurrentCombine
= & texUnit
->Combine
;
3036 GLenum format
= texUnit
->_Current
->Image
[0][0]->Format
;
3037 if (format
== GL_COLOR_INDEX
) {
3038 format
= GL_RGBA
; /* a bit of a hack */
3040 else if (format
== GL_DEPTH_COMPONENT
) {
3041 format
= texUnit
->_Current
->DepthMode
;
3043 calculate_derived_texenv(&texUnit
->_EnvMode
, texUnit
->EnvMode
, format
);
3044 texUnit
->_CurrentCombine
= & texUnit
->_EnvMode
;
3047 switch (texUnit
->_CurrentCombine
->ModeRGB
) {
3049 texUnit
->_CurrentCombine
->_NumArgsRGB
= 1;
3057 case GL_DOT3_RGB_EXT
:
3058 case GL_DOT3_RGBA_EXT
:
3059 texUnit
->_CurrentCombine
->_NumArgsRGB
= 2;
3061 case GL_INTERPOLATE
:
3062 case GL_MODULATE_ADD_ATI
:
3063 case GL_MODULATE_SIGNED_ADD_ATI
:
3064 case GL_MODULATE_SUBTRACT_ATI
:
3065 texUnit
->_CurrentCombine
->_NumArgsRGB
= 3;
3068 texUnit
->_CurrentCombine
->_NumArgsRGB
= 0;
3069 _mesa_problem(ctx
, "invalid RGB combine mode in update_texture_state");
3073 switch (texUnit
->_CurrentCombine
->ModeA
) {
3075 texUnit
->_CurrentCombine
->_NumArgsA
= 1;
3081 texUnit
->_CurrentCombine
->_NumArgsA
= 2;
3083 case GL_INTERPOLATE
:
3084 case GL_MODULATE_ADD_ATI
:
3085 case GL_MODULATE_SIGNED_ADD_ATI
:
3086 case GL_MODULATE_SUBTRACT_ATI
:
3087 texUnit
->_CurrentCombine
->_NumArgsA
= 3;
3090 texUnit
->_CurrentCombine
->_NumArgsA
= 0;
3091 _mesa_problem(ctx
, "invalid Alpha combine mode in update_texture_state");
3095 if (texUnit
->TexGenEnabled
) {
3096 if (texUnit
->TexGenEnabled
& S_BIT
) {
3097 texUnit
->_GenFlags
|= texUnit
->_GenBitS
;
3099 if (texUnit
->TexGenEnabled
& T_BIT
) {
3100 texUnit
->_GenFlags
|= texUnit
->_GenBitT
;
3102 if (texUnit
->TexGenEnabled
& Q_BIT
) {
3103 texUnit
->_GenFlags
|= texUnit
->_GenBitQ
;
3105 if (texUnit
->TexGenEnabled
& R_BIT
) {
3106 texUnit
->_GenFlags
|= texUnit
->_GenBitR
;
3109 ctx
->Texture
._TexGenEnabled
|= ENABLE_TEXGEN(unit
);
3110 ctx
->Texture
._GenFlags
|= texUnit
->_GenFlags
;
3113 if (ctx
->TextureMatrixStack
[unit
].Top
->type
!= MATRIX_IDENTITY
)
3114 ctx
->Texture
._TexMatEnabled
|= ENABLE_TEXMAT(unit
);
3117 ctx
->Texture
._EnabledCoordUnits
= ctx
->Texture
._EnabledUnits
;
3118 /* Fragment programs may need texture coordinates but not the
3119 * corresponding texture images.
3121 if (ctx
->FragmentProgram
._Enabled
) {
3122 ctx
->Texture
._EnabledCoordUnits
|=
3123 (ctx
->FragmentProgram
.Current
->InputsRead
>> FRAG_ATTRIB_TEX0
);
3128 void _mesa_update_texture( GLcontext
*ctx
, GLuint new_state
)
3130 if (new_state
& _NEW_TEXTURE_MATRIX
)
3131 update_texture_matrices( ctx
);
3133 if (new_state
& (_NEW_TEXTURE
| _NEW_PROGRAM
))
3134 update_texture_state( ctx
);
3137 /**********************************************************************/
3138 /***** Initialization *****/
3139 /**********************************************************************/
3142 * Allocate the proxy textures for the given context.
3144 * \param ctx the context to allocate proxies for.
3146 * \return GL_TRUE on success, or GL_FALSE on failure
3148 * If run out of memory part way through the allocations, clean up and return
3152 alloc_proxy_textures( GLcontext
*ctx
)
3154 ctx
->Texture
.Proxy1D
= (*ctx
->Driver
.NewTextureObject
)(ctx
, 0, GL_TEXTURE_1D
);
3155 if (!ctx
->Texture
.Proxy1D
)
3158 ctx
->Texture
.Proxy2D
= (*ctx
->Driver
.NewTextureObject
)(ctx
, 0, GL_TEXTURE_2D
);
3159 if (!ctx
->Texture
.Proxy2D
)
3162 ctx
->Texture
.Proxy3D
= (*ctx
->Driver
.NewTextureObject
)(ctx
, 0, GL_TEXTURE_3D
);
3163 if (!ctx
->Texture
.Proxy3D
)
3166 ctx
->Texture
.ProxyCubeMap
= (*ctx
->Driver
.NewTextureObject
)(ctx
, 0, GL_TEXTURE_CUBE_MAP_ARB
);
3167 if (!ctx
->Texture
.ProxyCubeMap
)
3170 ctx
->Texture
.ProxyRect
= (*ctx
->Driver
.NewTextureObject
)(ctx
, 0, GL_TEXTURE_RECTANGLE_NV
);
3171 if (!ctx
->Texture
.ProxyRect
)
3177 if (ctx
->Texture
.Proxy1D
)
3178 (ctx
->Driver
.DeleteTexture
)(ctx
, ctx
->Texture
.Proxy1D
);
3179 if (ctx
->Texture
.Proxy2D
)
3180 (ctx
->Driver
.DeleteTexture
)(ctx
, ctx
->Texture
.Proxy2D
);
3181 if (ctx
->Texture
.Proxy3D
)
3182 (ctx
->Driver
.DeleteTexture
)(ctx
, ctx
->Texture
.Proxy3D
);
3183 if (ctx
->Texture
.ProxyCubeMap
)
3184 (ctx
->Driver
.DeleteTexture
)(ctx
, ctx
->Texture
.ProxyCubeMap
);
3185 if (ctx
->Texture
.ProxyRect
)
3186 (ctx
->Driver
.DeleteTexture
)(ctx
, ctx
->Texture
.ProxyRect
);
3192 * Initialize a texture unit.
3194 * \param ctx GL context.
3195 * \param unit texture unit number to be initialized.
3198 init_texture_unit( GLcontext
*ctx
, GLuint unit
)
3200 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[unit
];
3202 texUnit
->EnvMode
= GL_MODULATE
;
3203 ASSIGN_4V( texUnit
->EnvColor
, 0.0, 0.0, 0.0, 0.0 );
3205 texUnit
->Combine
= default_combine_state
;
3206 texUnit
->_EnvMode
= default_combine_state
;
3207 texUnit
->_CurrentCombine
= & texUnit
->_EnvMode
;
3209 texUnit
->TexGenEnabled
= 0;
3210 texUnit
->GenModeS
= GL_EYE_LINEAR
;
3211 texUnit
->GenModeT
= GL_EYE_LINEAR
;
3212 texUnit
->GenModeR
= GL_EYE_LINEAR
;
3213 texUnit
->GenModeQ
= GL_EYE_LINEAR
;
3214 texUnit
->_GenBitS
= TEXGEN_EYE_LINEAR
;
3215 texUnit
->_GenBitT
= TEXGEN_EYE_LINEAR
;
3216 texUnit
->_GenBitR
= TEXGEN_EYE_LINEAR
;
3217 texUnit
->_GenBitQ
= TEXGEN_EYE_LINEAR
;
3219 /* Yes, these plane coefficients are correct! */
3220 ASSIGN_4V( texUnit
->ObjectPlaneS
, 1.0, 0.0, 0.0, 0.0 );
3221 ASSIGN_4V( texUnit
->ObjectPlaneT
, 0.0, 1.0, 0.0, 0.0 );
3222 ASSIGN_4V( texUnit
->ObjectPlaneR
, 0.0, 0.0, 0.0, 0.0 );
3223 ASSIGN_4V( texUnit
->ObjectPlaneQ
, 0.0, 0.0, 0.0, 0.0 );
3224 ASSIGN_4V( texUnit
->EyePlaneS
, 1.0, 0.0, 0.0, 0.0 );
3225 ASSIGN_4V( texUnit
->EyePlaneT
, 0.0, 1.0, 0.0, 0.0 );
3226 ASSIGN_4V( texUnit
->EyePlaneR
, 0.0, 0.0, 0.0, 0.0 );
3227 ASSIGN_4V( texUnit
->EyePlaneQ
, 0.0, 0.0, 0.0, 0.0 );
3229 texUnit
->Current1D
= ctx
->Shared
->Default1D
;
3230 texUnit
->Current2D
= ctx
->Shared
->Default2D
;
3231 texUnit
->Current3D
= ctx
->Shared
->Default3D
;
3232 texUnit
->CurrentCubeMap
= ctx
->Shared
->DefaultCubeMap
;
3233 texUnit
->CurrentRect
= ctx
->Shared
->DefaultRect
;
3237 GLboolean
_mesa_init_texture( GLcontext
* ctx
)
3241 assert(MAX_TEXTURE_LEVELS
>= MAX_3D_TEXTURE_LEVELS
);
3242 assert(MAX_TEXTURE_LEVELS
>= MAX_CUBE_TEXTURE_LEVELS
);
3244 /* Effectively bind the default textures to all texture units */
3245 ctx
->Shared
->Default1D
->RefCount
+= MAX_TEXTURE_UNITS
;
3246 ctx
->Shared
->Default2D
->RefCount
+= MAX_TEXTURE_UNITS
;
3247 ctx
->Shared
->Default3D
->RefCount
+= MAX_TEXTURE_UNITS
;
3248 ctx
->Shared
->DefaultCubeMap
->RefCount
+= MAX_TEXTURE_UNITS
;
3249 ctx
->Shared
->DefaultRect
->RefCount
+= MAX_TEXTURE_UNITS
;
3252 ctx
->Texture
.CurrentUnit
= 0; /* multitexture */
3253 ctx
->Texture
._EnabledUnits
= 0;
3254 for (i
=0; i
<MAX_TEXTURE_UNITS
; i
++)
3255 init_texture_unit( ctx
, i
);
3256 ctx
->Texture
.SharedPalette
= GL_FALSE
;
3257 _mesa_init_colortable(&ctx
->Texture
.Palette
);
3259 /* Allocate proxy textures */
3260 if (!alloc_proxy_textures( ctx
))
3266 void _mesa_free_texture_data( GLcontext
*ctx
)
3270 /* Free proxy texture objects */
3271 (ctx
->Driver
.DeleteTexture
)(ctx
, ctx
->Texture
.Proxy1D
);
3272 (ctx
->Driver
.DeleteTexture
)(ctx
, ctx
->Texture
.Proxy2D
);
3273 (ctx
->Driver
.DeleteTexture
)(ctx
, ctx
->Texture
.Proxy3D
);
3274 (ctx
->Driver
.DeleteTexture
)(ctx
, ctx
->Texture
.ProxyCubeMap
);
3275 (ctx
->Driver
.DeleteTexture
)(ctx
, ctx
->Texture
.ProxyRect
);
3277 for (i
= 0; i
< MAX_TEXTURE_IMAGE_UNITS
; i
++)
3278 _mesa_free_colortable_data( &ctx
->Texture
.Unit
[i
].ColorTable
);
3280 _mesa_TexEnvProgramCacheDestroy( ctx
);