2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 * glTexParameter-related functions
33 #include "main/glheader.h"
34 #include "main/colormac.h"
35 #include "main/context.h"
36 #include "main/formats.h"
37 #include "main/macros.h"
38 #include "main/texcompress.h"
39 #include "main/texparam.h"
40 #include "main/teximage.h"
41 #include "main/texstate.h"
42 #include "program/prog_instruction.h"
46 * Check if a coordinate wrap mode is supported for the texture target.
47 * \return GL_TRUE if legal, GL_FALSE otherwise
50 validate_texture_wrap_mode(struct gl_context
* ctx
, GLenum target
, GLenum wrap
)
52 const struct gl_extensions
* const e
= & ctx
->Extensions
;
54 if (wrap
== GL_CLAMP
|| wrap
== GL_CLAMP_TO_EDGE
||
55 (wrap
== GL_CLAMP_TO_BORDER
&& e
->ARB_texture_border_clamp
)) {
56 /* any texture target */
59 else if (target
!= GL_TEXTURE_RECTANGLE_NV
&&
61 (wrap
== GL_MIRRORED_REPEAT
&&
62 e
->ARB_texture_mirrored_repeat
) ||
63 (wrap
== GL_MIRROR_CLAMP_EXT
&&
64 (e
->ATI_texture_mirror_once
|| e
->EXT_texture_mirror_clamp
)) ||
65 (wrap
== GL_MIRROR_CLAMP_TO_EDGE_EXT
&&
66 (e
->ATI_texture_mirror_once
|| e
->EXT_texture_mirror_clamp
)) ||
67 (wrap
== GL_MIRROR_CLAMP_TO_BORDER_EXT
&&
68 (e
->EXT_texture_mirror_clamp
)))) {
69 /* non-rectangle texture */
73 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexParameter(param=0x%x)", wrap
);
79 * Get current texture object for given target.
80 * Return NULL if any error (and record the error).
81 * Note that this is different from _mesa_select_tex_object() in that proxy
82 * targets are not accepted.
83 * Only the glGetTexLevelParameter() functions accept proxy targets.
85 static struct gl_texture_object
*
86 get_texobj(struct gl_context
*ctx
, GLenum target
, GLboolean get
)
88 struct gl_texture_unit
*texUnit
;
90 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxCombinedTextureImageUnits
) {
91 _mesa_error(ctx
, GL_INVALID_OPERATION
,
92 "gl%sTexParameter(current unit)", get
? "Get" : "");
96 texUnit
= _mesa_get_current_tex_unit(ctx
);
100 return texUnit
->CurrentTex
[TEXTURE_1D_INDEX
];
102 return texUnit
->CurrentTex
[TEXTURE_2D_INDEX
];
104 return texUnit
->CurrentTex
[TEXTURE_3D_INDEX
];
105 case GL_TEXTURE_CUBE_MAP
:
106 if (ctx
->Extensions
.ARB_texture_cube_map
) {
107 return texUnit
->CurrentTex
[TEXTURE_CUBE_INDEX
];
110 case GL_TEXTURE_RECTANGLE_NV
:
111 if (ctx
->Extensions
.NV_texture_rectangle
) {
112 return texUnit
->CurrentTex
[TEXTURE_RECT_INDEX
];
115 case GL_TEXTURE_1D_ARRAY_EXT
:
116 if (ctx
->Extensions
.MESA_texture_array
) {
117 return texUnit
->CurrentTex
[TEXTURE_1D_ARRAY_INDEX
];
120 case GL_TEXTURE_2D_ARRAY_EXT
:
121 if (ctx
->Extensions
.MESA_texture_array
) {
122 return texUnit
->CurrentTex
[TEXTURE_2D_ARRAY_INDEX
];
129 _mesa_error(ctx
, GL_INVALID_ENUM
,
130 "gl%sTexParameter(target)", get
? "Get" : "");
136 * Convert GL_RED/GREEN/BLUE/ALPHA/ZERO/ONE to SWIZZLE_X/Y/Z/W/ZERO/ONE.
137 * \return -1 if error.
140 comp_to_swizzle(GLenum comp
)
162 set_swizzle_component(GLuint
*swizzle
, GLuint comp
, GLuint swz
)
165 ASSERT(swz
<= SWIZZLE_NIL
);
167 GLuint mask
= 0x7 << (3 * comp
);
168 GLuint s
= (*swizzle
& ~mask
) | (swz
<< (3 * comp
));
175 * This is called just prior to changing any texture object state.
176 * Any pending rendering will be flushed out, we'll set the _NEW_TEXTURE
177 * state flag and then mark the texture object as 'incomplete' so that any
178 * per-texture derived state gets recomputed.
181 flush(struct gl_context
*ctx
, struct gl_texture_object
*texObj
)
183 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
184 texObj
->_Complete
= GL_FALSE
;
189 * Set an integer-valued texture parameter
190 * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
193 set_tex_parameteri(struct gl_context
*ctx
,
194 struct gl_texture_object
*texObj
,
195 GLenum pname
, const GLint
*params
)
198 case GL_TEXTURE_MIN_FILTER
:
199 if (texObj
->MinFilter
== params
[0])
205 texObj
->MinFilter
= params
[0];
207 case GL_NEAREST_MIPMAP_NEAREST
:
208 case GL_LINEAR_MIPMAP_NEAREST
:
209 case GL_NEAREST_MIPMAP_LINEAR
:
210 case GL_LINEAR_MIPMAP_LINEAR
:
211 if (texObj
->Target
!= GL_TEXTURE_RECTANGLE_NV
) {
213 texObj
->MinFilter
= params
[0];
218 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexParameter(param=0x%x)",
223 case GL_TEXTURE_MAG_FILTER
:
224 if (texObj
->MagFilter
== params
[0])
230 texObj
->MagFilter
= params
[0];
233 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexParameter(param=0x%x)",
238 case GL_TEXTURE_WRAP_S
:
239 if (texObj
->WrapS
== params
[0])
241 if (validate_texture_wrap_mode(ctx
, texObj
->Target
, params
[0])) {
243 texObj
->WrapS
= params
[0];
248 case GL_TEXTURE_WRAP_T
:
249 if (texObj
->WrapT
== params
[0])
251 if (validate_texture_wrap_mode(ctx
, texObj
->Target
, params
[0])) {
253 texObj
->WrapT
= params
[0];
258 case GL_TEXTURE_WRAP_R
:
259 if (texObj
->WrapR
== params
[0])
261 if (validate_texture_wrap_mode(ctx
, texObj
->Target
, params
[0])) {
263 texObj
->WrapR
= params
[0];
268 case GL_TEXTURE_BASE_LEVEL
:
269 if (texObj
->BaseLevel
== params
[0])
272 (texObj
->Target
== GL_TEXTURE_RECTANGLE_ARB
&& params
[0] != 0)) {
273 _mesa_error(ctx
, GL_INVALID_VALUE
,
274 "glTexParameter(param=%d)", params
[0]);
278 texObj
->BaseLevel
= params
[0];
281 case GL_TEXTURE_MAX_LEVEL
:
282 if (texObj
->MaxLevel
== params
[0])
284 if (params
[0] < 0 || texObj
->Target
== GL_TEXTURE_RECTANGLE_ARB
) {
285 _mesa_error(ctx
, GL_INVALID_OPERATION
,
286 "glTexParameter(param=%d)", params
[0]);
290 texObj
->MaxLevel
= params
[0];
293 case GL_GENERATE_MIPMAP_SGIS
:
294 if (texObj
->GenerateMipmap
!= params
[0]) {
296 texObj
->GenerateMipmap
= params
[0] ? GL_TRUE
: GL_FALSE
;
301 case GL_TEXTURE_COMPARE_MODE_ARB
:
302 if (ctx
->Extensions
.ARB_shadow
&&
303 (params
[0] == GL_NONE
||
304 params
[0] == GL_COMPARE_R_TO_TEXTURE_ARB
)) {
305 if (texObj
->CompareMode
!= params
[0]) {
307 texObj
->CompareMode
= params
[0];
313 _mesa_error(ctx
, GL_INVALID_ENUM
,
314 "glTexParameter(GL_TEXTURE_COMPARE_MODE_ARB)");
318 case GL_TEXTURE_COMPARE_FUNC_ARB
:
319 if (ctx
->Extensions
.ARB_shadow
) {
320 if (texObj
->CompareFunc
== params
[0])
326 texObj
->CompareFunc
= params
[0];
334 if (ctx
->Extensions
.EXT_shadow_funcs
) {
336 texObj
->CompareFunc
= params
[0];
341 _mesa_error(ctx
, GL_INVALID_ENUM
,
342 "glTexParameter(GL_TEXTURE_COMPARE_FUNC_ARB)");
346 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexParameter(pname=0x%x)", pname
);
350 case GL_DEPTH_TEXTURE_MODE_ARB
:
351 if (ctx
->Extensions
.ARB_depth_texture
&&
352 (params
[0] == GL_LUMINANCE
||
353 params
[0] == GL_INTENSITY
||
354 params
[0] == GL_ALPHA
||
355 (ctx
->Extensions
.ARB_texture_rg
&& params
[0] == GL_RED
))) {
356 if (texObj
->DepthMode
!= params
[0]) {
358 texObj
->DepthMode
= params
[0];
363 _mesa_error(ctx
, GL_INVALID_ENUM
,
364 "glTexParameter(GL_DEPTH_TEXTURE_MODE_ARB)");
368 #if FEATURE_OES_draw_texture
369 case GL_TEXTURE_CROP_RECT_OES
:
370 texObj
->CropRect
[0] = params
[0];
371 texObj
->CropRect
[1] = params
[1];
372 texObj
->CropRect
[2] = params
[2];
373 texObj
->CropRect
[3] = params
[3];
377 case GL_TEXTURE_SWIZZLE_R_EXT
:
378 case GL_TEXTURE_SWIZZLE_G_EXT
:
379 case GL_TEXTURE_SWIZZLE_B_EXT
:
380 case GL_TEXTURE_SWIZZLE_A_EXT
:
381 if (ctx
->Extensions
.EXT_texture_swizzle
) {
382 const GLuint comp
= pname
- GL_TEXTURE_SWIZZLE_R_EXT
;
383 const GLint swz
= comp_to_swizzle(params
[0]);
385 _mesa_error(ctx
, GL_INVALID_OPERATION
,
386 "glTexParameter(swizzle 0x%x)", params
[0]);
392 texObj
->Swizzle
[comp
] = params
[0];
393 set_swizzle_component(&texObj
->_Swizzle
, comp
, swz
);
397 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexParameter(pname=0x%x)", pname
);
400 case GL_TEXTURE_SWIZZLE_RGBA_EXT
:
401 if (ctx
->Extensions
.EXT_texture_swizzle
) {
404 for (comp
= 0; comp
< 4; comp
++) {
405 const GLint swz
= comp_to_swizzle(params
[comp
]);
407 texObj
->Swizzle
[comp
] = params
[comp
];
408 set_swizzle_component(&texObj
->_Swizzle
, comp
, swz
);
411 _mesa_error(ctx
, GL_INVALID_OPERATION
,
412 "glTexParameter(swizzle 0x%x)", params
[comp
]);
418 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexParameter(pname=0x%x)", pname
);
422 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexParameter(pname=0x%x)", pname
);
429 * Set a float-valued texture parameter
430 * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
433 set_tex_parameterf(struct gl_context
*ctx
,
434 struct gl_texture_object
*texObj
,
435 GLenum pname
, const GLfloat
*params
)
438 case GL_TEXTURE_MIN_LOD
:
439 if (texObj
->MinLod
== params
[0])
442 texObj
->MinLod
= params
[0];
445 case GL_TEXTURE_MAX_LOD
:
446 if (texObj
->MaxLod
== params
[0])
449 texObj
->MaxLod
= params
[0];
452 case GL_TEXTURE_PRIORITY
:
454 texObj
->Priority
= CLAMP(params
[0], 0.0F
, 1.0F
);
457 case GL_TEXTURE_MAX_ANISOTROPY_EXT
:
458 if (ctx
->Extensions
.EXT_texture_filter_anisotropic
) {
459 if (texObj
->MaxAnisotropy
== params
[0])
461 if (params
[0] < 1.0) {
462 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexParameter(param)" );
466 /* clamp to max, that's what NVIDIA does */
467 texObj
->MaxAnisotropy
= MIN2(params
[0],
468 ctx
->Const
.MaxTextureMaxAnisotropy
);
472 static GLuint count
= 0;
474 _mesa_error(ctx
, GL_INVALID_ENUM
,
475 "glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)");
479 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB
:
480 if (ctx
->Extensions
.ARB_shadow_ambient
) {
481 if (texObj
->CompareFailValue
!= params
[0]) {
483 texObj
->CompareFailValue
= CLAMP(params
[0], 0.0F
, 1.0F
);
488 _mesa_error(ctx
, GL_INVALID_ENUM
,
489 "glTexParameter(pname=GL_TEXTURE_COMPARE_FAIL_VALUE_ARB)");
493 case GL_TEXTURE_LOD_BIAS
:
494 /* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias */
495 if (ctx
->Extensions
.EXT_texture_lod_bias
) {
496 if (texObj
->LodBias
!= params
[0]) {
498 texObj
->LodBias
= params
[0];
505 case GL_TEXTURE_BORDER_COLOR
:
507 texObj
->BorderColor
.f
[RCOMP
] = params
[0];
508 texObj
->BorderColor
.f
[GCOMP
] = params
[1];
509 texObj
->BorderColor
.f
[BCOMP
] = params
[2];
510 texObj
->BorderColor
.f
[ACOMP
] = params
[3];
514 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexParameter(pname=0x%x)", pname
);
521 _mesa_TexParameterf(GLenum target
, GLenum pname
, GLfloat param
)
523 GLboolean need_update
;
524 struct gl_texture_object
*texObj
;
525 GET_CURRENT_CONTEXT(ctx
);
526 ASSERT_OUTSIDE_BEGIN_END(ctx
);
528 texObj
= get_texobj(ctx
, target
, GL_FALSE
);
533 case GL_TEXTURE_MIN_FILTER
:
534 case GL_TEXTURE_MAG_FILTER
:
535 case GL_TEXTURE_WRAP_S
:
536 case GL_TEXTURE_WRAP_T
:
537 case GL_TEXTURE_WRAP_R
:
538 case GL_TEXTURE_BASE_LEVEL
:
539 case GL_TEXTURE_MAX_LEVEL
:
540 case GL_GENERATE_MIPMAP_SGIS
:
541 case GL_TEXTURE_COMPARE_MODE_ARB
:
542 case GL_TEXTURE_COMPARE_FUNC_ARB
:
543 case GL_DEPTH_TEXTURE_MODE_ARB
:
545 /* convert float param to int */
547 p
[0] = (GLint
) param
;
548 p
[1] = p
[2] = p
[3] = 0;
549 need_update
= set_tex_parameteri(ctx
, texObj
, pname
, p
);
554 /* this will generate an error if pname is illegal */
557 p
[1] = p
[2] = p
[3] = 0.0F
;
558 need_update
= set_tex_parameterf(ctx
, texObj
, pname
, p
);
562 if (ctx
->Driver
.TexParameter
&& need_update
) {
563 ctx
->Driver
.TexParameter(ctx
, target
, texObj
, pname
, ¶m
);
569 _mesa_TexParameterfv(GLenum target
, GLenum pname
, const GLfloat
*params
)
571 GLboolean need_update
;
572 struct gl_texture_object
*texObj
;
573 GET_CURRENT_CONTEXT(ctx
);
574 ASSERT_OUTSIDE_BEGIN_END(ctx
);
576 texObj
= get_texobj(ctx
, target
, GL_FALSE
);
581 case GL_TEXTURE_MIN_FILTER
:
582 case GL_TEXTURE_MAG_FILTER
:
583 case GL_TEXTURE_WRAP_S
:
584 case GL_TEXTURE_WRAP_T
:
585 case GL_TEXTURE_WRAP_R
:
586 case GL_TEXTURE_BASE_LEVEL
:
587 case GL_TEXTURE_MAX_LEVEL
:
588 case GL_GENERATE_MIPMAP_SGIS
:
589 case GL_TEXTURE_COMPARE_MODE_ARB
:
590 case GL_TEXTURE_COMPARE_FUNC_ARB
:
591 case GL_DEPTH_TEXTURE_MODE_ARB
:
593 /* convert float param to int */
595 p
[0] = (GLint
) params
[0];
596 p
[1] = p
[2] = p
[3] = 0;
597 need_update
= set_tex_parameteri(ctx
, texObj
, pname
, p
);
601 #if FEATURE_OES_draw_texture
602 case GL_TEXTURE_CROP_RECT_OES
:
604 /* convert float params to int */
606 iparams
[0] = (GLint
) params
[0];
607 iparams
[1] = (GLint
) params
[1];
608 iparams
[2] = (GLint
) params
[2];
609 iparams
[3] = (GLint
) params
[3];
610 need_update
= set_tex_parameteri(ctx
, texObj
, pname
, iparams
);
616 /* this will generate an error if pname is illegal */
617 need_update
= set_tex_parameterf(ctx
, texObj
, pname
, params
);
620 if (ctx
->Driver
.TexParameter
&& need_update
) {
621 ctx
->Driver
.TexParameter(ctx
, target
, texObj
, pname
, params
);
627 _mesa_TexParameteri(GLenum target
, GLenum pname
, GLint param
)
629 GLboolean need_update
;
630 struct gl_texture_object
*texObj
;
631 GET_CURRENT_CONTEXT(ctx
);
632 ASSERT_OUTSIDE_BEGIN_END(ctx
);
634 texObj
= get_texobj(ctx
, target
, GL_FALSE
);
639 case GL_TEXTURE_MIN_LOD
:
640 case GL_TEXTURE_MAX_LOD
:
641 case GL_TEXTURE_PRIORITY
:
642 case GL_TEXTURE_MAX_ANISOTROPY_EXT
:
643 case GL_TEXTURE_LOD_BIAS
:
644 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB
:
647 fparam
[0] = (GLfloat
) param
;
648 fparam
[1] = fparam
[2] = fparam
[3] = 0.0F
;
649 /* convert int param to float */
650 need_update
= set_tex_parameterf(ctx
, texObj
, pname
, fparam
);
654 /* this will generate an error if pname is illegal */
658 iparam
[1] = iparam
[2] = iparam
[3] = 0;
659 need_update
= set_tex_parameteri(ctx
, texObj
, pname
, iparam
);
663 if (ctx
->Driver
.TexParameter
&& need_update
) {
664 GLfloat fparam
= (GLfloat
) param
;
665 ctx
->Driver
.TexParameter(ctx
, target
, texObj
, pname
, &fparam
);
671 _mesa_TexParameteriv(GLenum target
, GLenum pname
, const GLint
*params
)
673 GLboolean need_update
;
674 struct gl_texture_object
*texObj
;
675 GET_CURRENT_CONTEXT(ctx
);
676 ASSERT_OUTSIDE_BEGIN_END(ctx
);
678 texObj
= get_texobj(ctx
, target
, GL_FALSE
);
683 case GL_TEXTURE_BORDER_COLOR
:
685 /* convert int params to float */
687 fparams
[0] = INT_TO_FLOAT(params
[0]);
688 fparams
[1] = INT_TO_FLOAT(params
[1]);
689 fparams
[2] = INT_TO_FLOAT(params
[2]);
690 fparams
[3] = INT_TO_FLOAT(params
[3]);
691 need_update
= set_tex_parameterf(ctx
, texObj
, pname
, fparams
);
694 case GL_TEXTURE_MIN_LOD
:
695 case GL_TEXTURE_MAX_LOD
:
696 case GL_TEXTURE_PRIORITY
:
697 case GL_TEXTURE_MAX_ANISOTROPY_EXT
:
698 case GL_TEXTURE_LOD_BIAS
:
699 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB
:
701 /* convert int param to float */
703 fparams
[0] = (GLfloat
) params
[0];
704 fparams
[1] = fparams
[2] = fparams
[3] = 0.0F
;
705 need_update
= set_tex_parameterf(ctx
, texObj
, pname
, fparams
);
709 /* this will generate an error if pname is illegal */
710 need_update
= set_tex_parameteri(ctx
, texObj
, pname
, params
);
713 if (ctx
->Driver
.TexParameter
&& need_update
) {
715 fparams
[0] = INT_TO_FLOAT(params
[0]);
716 if (pname
== GL_TEXTURE_BORDER_COLOR
||
717 pname
== GL_TEXTURE_CROP_RECT_OES
) {
718 fparams
[1] = INT_TO_FLOAT(params
[1]);
719 fparams
[2] = INT_TO_FLOAT(params
[2]);
720 fparams
[3] = INT_TO_FLOAT(params
[3]);
722 ctx
->Driver
.TexParameter(ctx
, target
, texObj
, pname
, fparams
);
728 * Set tex parameter to integer value(s). Primarily intended to set
729 * integer-valued texture border color (for integer-valued textures).
733 _mesa_TexParameterIiv(GLenum target
, GLenum pname
, const GLint
*params
)
735 struct gl_texture_object
*texObj
;
736 GET_CURRENT_CONTEXT(ctx
);
737 ASSERT_OUTSIDE_BEGIN_END(ctx
);
739 texObj
= get_texobj(ctx
, target
, GL_FALSE
);
744 case GL_TEXTURE_BORDER_COLOR
:
745 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
746 /* set the integer-valued border color */
747 COPY_4V(texObj
->BorderColor
.i
, params
);
750 _mesa_TexParameteriv(target
, pname
, params
);
753 /* XXX no driver hook for TexParameterIiv() yet */
758 * Set tex parameter to unsigned integer value(s). Primarily intended to set
759 * uint-valued texture border color (for integer-valued textures).
763 _mesa_TexParameterIuiv(GLenum target
, GLenum pname
, const GLuint
*params
)
765 struct gl_texture_object
*texObj
;
766 GET_CURRENT_CONTEXT(ctx
);
767 ASSERT_OUTSIDE_BEGIN_END(ctx
);
769 texObj
= get_texobj(ctx
, target
, GL_FALSE
);
774 case GL_TEXTURE_BORDER_COLOR
:
775 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
776 /* set the unsigned integer-valued border color */
777 COPY_4V(texObj
->BorderColor
.ui
, params
);
780 _mesa_TexParameteriv(target
, pname
, (const GLint
*) params
);
783 /* XXX no driver hook for TexParameterIuiv() yet */
790 _mesa_GetTexLevelParameterfv( GLenum target
, GLint level
,
791 GLenum pname
, GLfloat
*params
)
794 _mesa_GetTexLevelParameteriv( target
, level
, pname
, &iparam
);
795 *params
= (GLfloat
) iparam
;
800 _mesa_GetTexLevelParameteriv( GLenum target
, GLint level
,
801 GLenum pname
, GLint
*params
)
803 const struct gl_texture_unit
*texUnit
;
804 struct gl_texture_object
*texObj
;
805 const struct gl_texture_image
*img
= NULL
;
809 GET_CURRENT_CONTEXT(ctx
);
810 ASSERT_OUTSIDE_BEGIN_END(ctx
);
812 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxCombinedTextureImageUnits
) {
813 _mesa_error(ctx
, GL_INVALID_OPERATION
,
814 "glGetTexLevelParameteriv(current unit)");
818 texUnit
= _mesa_get_current_tex_unit(ctx
);
820 /* this will catch bad target values */
821 maxLevels
= _mesa_max_texture_levels(ctx
, target
);
822 if (maxLevels
== 0) {
823 _mesa_error(ctx
, GL_INVALID_ENUM
,
824 "glGetTexLevelParameter[if]v(target=0x%x)", target
);
828 if (level
< 0 || level
>= maxLevels
) {
829 _mesa_error( ctx
, GL_INVALID_VALUE
, "glGetTexLevelParameter[if]v" );
833 texObj
= _mesa_select_tex_object(ctx
, texUnit
, target
);
834 _mesa_lock_texture(ctx
, texObj
);
836 img
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
837 if (!img
|| !img
->TexFormat
) {
838 /* undefined texture image */
839 if (pname
== GL_TEXTURE_COMPONENTS
)
846 texFormat
= img
->TexFormat
;
848 isProxy
= _mesa_is_proxy_texture(target
);
851 case GL_TEXTURE_WIDTH
:
852 *params
= img
->Width
;
854 case GL_TEXTURE_HEIGHT
:
855 *params
= img
->Height
;
857 case GL_TEXTURE_DEPTH
:
858 *params
= img
->Depth
;
860 case GL_TEXTURE_INTERNAL_FORMAT
:
861 if (_mesa_is_format_compressed(img
->TexFormat
)) {
862 /* need to return the actual compressed format */
863 *params
= _mesa_compressed_format_to_glenum(ctx
, img
->TexFormat
);
866 /* return the user's requested internal format */
867 *params
= img
->InternalFormat
;
870 case GL_TEXTURE_BORDER
:
871 *params
= img
->Border
;
873 case GL_TEXTURE_RED_SIZE
:
874 if (img
->_BaseFormat
== GL_RED
) {
875 *params
= _mesa_get_format_bits(texFormat
, pname
);
879 case GL_TEXTURE_GREEN_SIZE
:
880 if (img
->_BaseFormat
== GL_RG
) {
881 *params
= _mesa_get_format_bits(texFormat
, pname
);
885 case GL_TEXTURE_BLUE_SIZE
:
886 if (img
->_BaseFormat
== GL_RGB
|| img
->_BaseFormat
== GL_RGBA
)
887 *params
= _mesa_get_format_bits(texFormat
, pname
);
891 case GL_TEXTURE_ALPHA_SIZE
:
892 if (img
->_BaseFormat
== GL_ALPHA
||
893 img
->_BaseFormat
== GL_LUMINANCE_ALPHA
||
894 img
->_BaseFormat
== GL_RGBA
)
895 *params
= _mesa_get_format_bits(texFormat
, pname
);
899 case GL_TEXTURE_INTENSITY_SIZE
:
900 if (img
->_BaseFormat
!= GL_INTENSITY
)
903 *params
= _mesa_get_format_bits(texFormat
, pname
);
905 /* intensity probably stored as rgb texture */
906 *params
= MIN2(_mesa_get_format_bits(texFormat
, GL_TEXTURE_RED_SIZE
),
907 _mesa_get_format_bits(texFormat
, GL_TEXTURE_GREEN_SIZE
));
911 case GL_TEXTURE_LUMINANCE_SIZE
:
912 if (img
->_BaseFormat
!= GL_LUMINANCE
&&
913 img
->_BaseFormat
!= GL_LUMINANCE_ALPHA
)
916 *params
= _mesa_get_format_bits(texFormat
, pname
);
918 /* luminance probably stored as rgb texture */
919 *params
= MIN2(_mesa_get_format_bits(texFormat
, GL_TEXTURE_RED_SIZE
),
920 _mesa_get_format_bits(texFormat
, GL_TEXTURE_GREEN_SIZE
));
924 case GL_TEXTURE_INDEX_SIZE_EXT
:
925 if (img
->_BaseFormat
== GL_COLOR_INDEX
)
926 *params
= _mesa_get_format_bits(texFormat
, pname
);
930 case GL_TEXTURE_DEPTH_SIZE_ARB
:
931 if (ctx
->Extensions
.ARB_depth_texture
)
932 *params
= _mesa_get_format_bits(texFormat
, pname
);
934 _mesa_error(ctx
, GL_INVALID_ENUM
,
935 "glGetTexLevelParameter[if]v(pname)");
937 case GL_TEXTURE_STENCIL_SIZE_EXT
:
938 if (ctx
->Extensions
.EXT_packed_depth_stencil
||
939 ctx
->Extensions
.ARB_framebuffer_object
) {
940 *params
= _mesa_get_format_bits(texFormat
, pname
);
943 _mesa_error(ctx
, GL_INVALID_ENUM
,
944 "glGetTexLevelParameter[if]v(pname)");
947 case GL_TEXTURE_SHARED_SIZE
:
948 if (ctx
->VersionMajor
>= 3) {
949 /* XXX return number of exponent bits for shared exponent texture
950 * formats, like GL_RGB9_E5.
955 _mesa_error(ctx
, GL_INVALID_ENUM
,
956 "glGetTexLevelParameter[if]v(pname)");
960 /* GL_ARB_texture_compression */
961 case GL_TEXTURE_COMPRESSED_IMAGE_SIZE
:
962 if (_mesa_is_format_compressed(img
->TexFormat
) && !isProxy
) {
963 *params
= _mesa_format_image_size(texFormat
, img
->Width
,
964 img
->Height
, img
->Depth
);
967 _mesa_error(ctx
, GL_INVALID_OPERATION
,
968 "glGetTexLevelParameter[if]v(pname)");
971 case GL_TEXTURE_COMPRESSED
:
972 *params
= (GLint
) _mesa_is_format_compressed(img
->TexFormat
);
975 /* GL_ARB_texture_float */
976 case GL_TEXTURE_RED_TYPE_ARB
:
977 if (ctx
->Extensions
.ARB_texture_float
) {
978 *params
= _mesa_get_format_bits(texFormat
, GL_TEXTURE_RED_SIZE
) ?
979 _mesa_get_format_datatype(texFormat
) : GL_NONE
;
982 _mesa_error(ctx
, GL_INVALID_ENUM
,
983 "glGetTexLevelParameter[if]v(pname)");
986 case GL_TEXTURE_GREEN_TYPE_ARB
:
987 if (ctx
->Extensions
.ARB_texture_float
) {
988 *params
= _mesa_get_format_bits(texFormat
, GL_TEXTURE_GREEN_SIZE
) ?
989 _mesa_get_format_datatype(texFormat
) : GL_NONE
;
992 _mesa_error(ctx
, GL_INVALID_ENUM
,
993 "glGetTexLevelParameter[if]v(pname)");
996 case GL_TEXTURE_BLUE_TYPE_ARB
:
997 if (ctx
->Extensions
.ARB_texture_float
) {
998 *params
= _mesa_get_format_bits(texFormat
, GL_TEXTURE_BLUE_SIZE
) ?
999 _mesa_get_format_datatype(texFormat
) : GL_NONE
;
1002 _mesa_error(ctx
, GL_INVALID_ENUM
,
1003 "glGetTexLevelParameter[if]v(pname)");
1006 case GL_TEXTURE_ALPHA_TYPE_ARB
:
1007 if (ctx
->Extensions
.ARB_texture_float
) {
1008 *params
= _mesa_get_format_bits(texFormat
, GL_TEXTURE_ALPHA_SIZE
) ?
1009 _mesa_get_format_datatype(texFormat
) : GL_NONE
;
1012 _mesa_error(ctx
, GL_INVALID_ENUM
,
1013 "glGetTexLevelParameter[if]v(pname)");
1016 case GL_TEXTURE_LUMINANCE_TYPE_ARB
:
1017 if (ctx
->Extensions
.ARB_texture_float
) {
1018 *params
= _mesa_get_format_bits(texFormat
, GL_TEXTURE_LUMINANCE_SIZE
) ?
1019 _mesa_get_format_datatype(texFormat
) : GL_NONE
;
1022 _mesa_error(ctx
, GL_INVALID_ENUM
,
1023 "glGetTexLevelParameter[if]v(pname)");
1026 case GL_TEXTURE_INTENSITY_TYPE_ARB
:
1027 if (ctx
->Extensions
.ARB_texture_float
) {
1028 *params
= _mesa_get_format_bits(texFormat
, GL_TEXTURE_INTENSITY_SIZE
) ?
1029 _mesa_get_format_datatype(texFormat
) : GL_NONE
;
1032 _mesa_error(ctx
, GL_INVALID_ENUM
,
1033 "glGetTexLevelParameter[if]v(pname)");
1036 case GL_TEXTURE_DEPTH_TYPE_ARB
:
1037 if (ctx
->Extensions
.ARB_texture_float
) {
1038 *params
= _mesa_get_format_bits(texFormat
, GL_TEXTURE_DEPTH_SIZE
) ?
1039 _mesa_get_format_datatype(texFormat
) : GL_NONE
;
1042 _mesa_error(ctx
, GL_INVALID_ENUM
,
1043 "glGetTexLevelParameter[if]v(pname)");
1048 _mesa_error(ctx
, GL_INVALID_ENUM
,
1049 "glGetTexLevelParameter[if]v(pname)");
1053 _mesa_unlock_texture(ctx
, texObj
);
1059 _mesa_GetTexParameterfv( GLenum target
, GLenum pname
, GLfloat
*params
)
1061 struct gl_texture_object
*obj
;
1062 GLboolean error
= GL_FALSE
;
1063 GET_CURRENT_CONTEXT(ctx
);
1064 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1066 obj
= get_texobj(ctx
, target
, GL_TRUE
);
1070 _mesa_lock_texture(ctx
, obj
);
1072 case GL_TEXTURE_MAG_FILTER
:
1073 *params
= ENUM_TO_FLOAT(obj
->MagFilter
);
1075 case GL_TEXTURE_MIN_FILTER
:
1076 *params
= ENUM_TO_FLOAT(obj
->MinFilter
);
1078 case GL_TEXTURE_WRAP_S
:
1079 *params
= ENUM_TO_FLOAT(obj
->WrapS
);
1081 case GL_TEXTURE_WRAP_T
:
1082 *params
= ENUM_TO_FLOAT(obj
->WrapT
);
1084 case GL_TEXTURE_WRAP_R
:
1085 *params
= ENUM_TO_FLOAT(obj
->WrapR
);
1087 case GL_TEXTURE_BORDER_COLOR
:
1088 params
[0] = CLAMP(obj
->BorderColor
.f
[0], 0.0F
, 1.0F
);
1089 params
[1] = CLAMP(obj
->BorderColor
.f
[1], 0.0F
, 1.0F
);
1090 params
[2] = CLAMP(obj
->BorderColor
.f
[2], 0.0F
, 1.0F
);
1091 params
[3] = CLAMP(obj
->BorderColor
.f
[3], 0.0F
, 1.0F
);
1093 case GL_TEXTURE_RESIDENT
:
1096 if (ctx
->Driver
.IsTextureResident
)
1097 resident
= ctx
->Driver
.IsTextureResident(ctx
, obj
);
1100 *params
= ENUM_TO_FLOAT(resident
);
1103 case GL_TEXTURE_PRIORITY
:
1104 *params
= obj
->Priority
;
1106 case GL_TEXTURE_MIN_LOD
:
1107 *params
= obj
->MinLod
;
1109 case GL_TEXTURE_MAX_LOD
:
1110 *params
= obj
->MaxLod
;
1112 case GL_TEXTURE_BASE_LEVEL
:
1113 *params
= (GLfloat
) obj
->BaseLevel
;
1115 case GL_TEXTURE_MAX_LEVEL
:
1116 *params
= (GLfloat
) obj
->MaxLevel
;
1118 case GL_TEXTURE_MAX_ANISOTROPY_EXT
:
1119 if (ctx
->Extensions
.EXT_texture_filter_anisotropic
) {
1120 *params
= obj
->MaxAnisotropy
;
1125 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB
:
1126 if (ctx
->Extensions
.ARB_shadow_ambient
) {
1127 *params
= obj
->CompareFailValue
;
1132 case GL_GENERATE_MIPMAP_SGIS
:
1133 *params
= (GLfloat
) obj
->GenerateMipmap
;
1135 case GL_TEXTURE_COMPARE_MODE_ARB
:
1136 if (ctx
->Extensions
.ARB_shadow
) {
1137 *params
= (GLfloat
) obj
->CompareMode
;
1142 case GL_TEXTURE_COMPARE_FUNC_ARB
:
1143 if (ctx
->Extensions
.ARB_shadow
) {
1144 *params
= (GLfloat
) obj
->CompareFunc
;
1149 case GL_DEPTH_TEXTURE_MODE_ARB
:
1150 if (ctx
->Extensions
.ARB_depth_texture
) {
1151 *params
= (GLfloat
) obj
->DepthMode
;
1156 case GL_TEXTURE_LOD_BIAS
:
1157 if (ctx
->Extensions
.EXT_texture_lod_bias
) {
1158 *params
= obj
->LodBias
;
1163 #if FEATURE_OES_draw_texture
1164 case GL_TEXTURE_CROP_RECT_OES
:
1165 params
[0] = obj
->CropRect
[0];
1166 params
[1] = obj
->CropRect
[1];
1167 params
[2] = obj
->CropRect
[2];
1168 params
[3] = obj
->CropRect
[3];
1172 case GL_TEXTURE_SWIZZLE_R_EXT
:
1173 case GL_TEXTURE_SWIZZLE_G_EXT
:
1174 case GL_TEXTURE_SWIZZLE_B_EXT
:
1175 case GL_TEXTURE_SWIZZLE_A_EXT
:
1176 if (ctx
->Extensions
.EXT_texture_swizzle
) {
1177 GLuint comp
= pname
- GL_TEXTURE_SWIZZLE_R_EXT
;
1178 *params
= (GLfloat
) obj
->Swizzle
[comp
];
1185 case GL_TEXTURE_SWIZZLE_RGBA_EXT
:
1186 if (ctx
->Extensions
.EXT_texture_swizzle
) {
1188 for (comp
= 0; comp
< 4; comp
++) {
1189 params
[comp
] = (GLfloat
) obj
->Swizzle
[comp
];
1203 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexParameterfv(pname=0x%x)",
1206 _mesa_unlock_texture(ctx
, obj
);
1211 _mesa_GetTexParameteriv( GLenum target
, GLenum pname
, GLint
*params
)
1213 struct gl_texture_object
*obj
;
1214 GLboolean error
= GL_FALSE
;
1215 GET_CURRENT_CONTEXT(ctx
);
1216 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1218 obj
= get_texobj(ctx
, target
, GL_TRUE
);
1222 _mesa_lock_texture(ctx
, obj
);
1224 case GL_TEXTURE_MAG_FILTER
:
1225 *params
= (GLint
) obj
->MagFilter
;
1227 case GL_TEXTURE_MIN_FILTER
:
1228 *params
= (GLint
) obj
->MinFilter
;
1230 case GL_TEXTURE_WRAP_S
:
1231 *params
= (GLint
) obj
->WrapS
;
1233 case GL_TEXTURE_WRAP_T
:
1234 *params
= (GLint
) obj
->WrapT
;
1236 case GL_TEXTURE_WRAP_R
:
1237 *params
= (GLint
) obj
->WrapR
;
1239 case GL_TEXTURE_BORDER_COLOR
:
1242 b
[0] = CLAMP(obj
->BorderColor
.f
[0], 0.0F
, 1.0F
);
1243 b
[1] = CLAMP(obj
->BorderColor
.f
[1], 0.0F
, 1.0F
);
1244 b
[2] = CLAMP(obj
->BorderColor
.f
[2], 0.0F
, 1.0F
);
1245 b
[3] = CLAMP(obj
->BorderColor
.f
[3], 0.0F
, 1.0F
);
1246 params
[0] = FLOAT_TO_INT(b
[0]);
1247 params
[1] = FLOAT_TO_INT(b
[1]);
1248 params
[2] = FLOAT_TO_INT(b
[2]);
1249 params
[3] = FLOAT_TO_INT(b
[3]);
1252 case GL_TEXTURE_RESIDENT
:
1255 if (ctx
->Driver
.IsTextureResident
)
1256 resident
= ctx
->Driver
.IsTextureResident(ctx
, obj
);
1259 *params
= (GLint
) resident
;
1262 case GL_TEXTURE_PRIORITY
:
1263 *params
= FLOAT_TO_INT(obj
->Priority
);
1265 case GL_TEXTURE_MIN_LOD
:
1266 *params
= (GLint
) obj
->MinLod
;
1268 case GL_TEXTURE_MAX_LOD
:
1269 *params
= (GLint
) obj
->MaxLod
;
1271 case GL_TEXTURE_BASE_LEVEL
:
1272 *params
= obj
->BaseLevel
;
1274 case GL_TEXTURE_MAX_LEVEL
:
1275 *params
= obj
->MaxLevel
;
1277 case GL_TEXTURE_MAX_ANISOTROPY_EXT
:
1278 if (ctx
->Extensions
.EXT_texture_filter_anisotropic
) {
1279 *params
= (GLint
) obj
->MaxAnisotropy
;
1285 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB
:
1286 if (ctx
->Extensions
.ARB_shadow_ambient
) {
1287 *params
= (GLint
) FLOAT_TO_INT(obj
->CompareFailValue
);
1293 case GL_GENERATE_MIPMAP_SGIS
:
1294 *params
= (GLint
) obj
->GenerateMipmap
;
1296 case GL_TEXTURE_COMPARE_MODE_ARB
:
1297 if (ctx
->Extensions
.ARB_shadow
) {
1298 *params
= (GLint
) obj
->CompareMode
;
1304 case GL_TEXTURE_COMPARE_FUNC_ARB
:
1305 if (ctx
->Extensions
.ARB_shadow
) {
1306 *params
= (GLint
) obj
->CompareFunc
;
1312 case GL_DEPTH_TEXTURE_MODE_ARB
:
1313 if (ctx
->Extensions
.ARB_depth_texture
) {
1314 *params
= (GLint
) obj
->DepthMode
;
1320 case GL_TEXTURE_LOD_BIAS
:
1321 if (ctx
->Extensions
.EXT_texture_lod_bias
) {
1322 *params
= (GLint
) obj
->LodBias
;
1328 #if FEATURE_OES_draw_texture
1329 case GL_TEXTURE_CROP_RECT_OES
:
1330 params
[0] = obj
->CropRect
[0];
1331 params
[1] = obj
->CropRect
[1];
1332 params
[2] = obj
->CropRect
[2];
1333 params
[3] = obj
->CropRect
[3];
1336 case GL_TEXTURE_SWIZZLE_R_EXT
:
1337 case GL_TEXTURE_SWIZZLE_G_EXT
:
1338 case GL_TEXTURE_SWIZZLE_B_EXT
:
1339 case GL_TEXTURE_SWIZZLE_A_EXT
:
1340 if (ctx
->Extensions
.EXT_texture_swizzle
) {
1341 GLuint comp
= pname
- GL_TEXTURE_SWIZZLE_R_EXT
;
1342 *params
= obj
->Swizzle
[comp
];
1349 case GL_TEXTURE_SWIZZLE_RGBA_EXT
:
1350 if (ctx
->Extensions
.EXT_texture_swizzle
) {
1351 COPY_4V(params
, obj
->Swizzle
);
1359 ; /* silence warnings */
1363 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexParameteriv(pname=0x%x)",
1366 _mesa_unlock_texture(ctx
, obj
);
1370 /** New in GL 3.0 */
1372 _mesa_GetTexParameterIiv(GLenum target
, GLenum pname
, GLint
*params
)
1374 struct gl_texture_object
*texObj
;
1375 GET_CURRENT_CONTEXT(ctx
);
1376 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1378 texObj
= get_texobj(ctx
, target
, GL_TRUE
);
1381 case GL_TEXTURE_BORDER_COLOR
:
1382 COPY_4V(params
, texObj
->BorderColor
.i
);
1385 _mesa_GetTexParameteriv(target
, pname
, params
);
1390 /** New in GL 3.0 */
1392 _mesa_GetTexParameterIuiv(GLenum target
, GLenum pname
, GLuint
*params
)
1394 struct gl_texture_object
*texObj
;
1395 GET_CURRENT_CONTEXT(ctx
);
1396 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1398 texObj
= get_texobj(ctx
, target
, GL_TRUE
);
1401 case GL_TEXTURE_BORDER_COLOR
:
1402 COPY_4V(params
, texObj
->BorderColor
.i
);
1407 _mesa_GetTexParameteriv(target
, pname
, ip
);
1409 if (pname
== GL_TEXTURE_SWIZZLE_RGBA_EXT
||
1410 pname
== GL_TEXTURE_CROP_RECT_OES
) {