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/enums.h"
37 #include "main/formats.h"
38 #include "main/macros.h"
39 #include "main/texcompress.h"
40 #include "main/texparam.h"
41 #include "main/teximage.h"
42 #include "main/texstate.h"
43 #include "shader/prog_instruction.h"
47 * Check if a coordinate wrap mode is supported for the texture target.
48 * \return GL_TRUE if legal, GL_FALSE otherwise
51 validate_texture_wrap_mode(GLcontext
* ctx
, GLenum target
, GLenum wrap
)
53 const struct gl_extensions
* const e
= & ctx
->Extensions
;
55 if (wrap
== GL_CLAMP
|| wrap
== GL_CLAMP_TO_EDGE
||
56 (wrap
== GL_CLAMP_TO_BORDER
&& e
->ARB_texture_border_clamp
)) {
57 /* any texture target */
60 else if (target
!= GL_TEXTURE_RECTANGLE_NV
&&
62 (wrap
== GL_MIRRORED_REPEAT
&&
63 e
->ARB_texture_mirrored_repeat
) ||
64 (wrap
== GL_MIRROR_CLAMP_EXT
&&
65 (e
->ATI_texture_mirror_once
|| e
->EXT_texture_mirror_clamp
)) ||
66 (wrap
== GL_MIRROR_CLAMP_TO_EDGE_EXT
&&
67 (e
->ATI_texture_mirror_once
|| e
->EXT_texture_mirror_clamp
)) ||
68 (wrap
== GL_MIRROR_CLAMP_TO_BORDER_EXT
&&
69 (e
->EXT_texture_mirror_clamp
)))) {
70 /* non-rectangle texture */
74 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexParameter(param=0x%x)", wrap
);
80 * Get current texture object for given target.
81 * Return NULL if any error (and record the error).
82 * Note that this is different from _mesa_select_tex_object() in that proxy
83 * targets are not accepted.
84 * Only the glGetTexLevelParameter() functions accept proxy targets.
86 static struct gl_texture_object
*
87 get_texobj(GLcontext
*ctx
, GLenum target
, GLboolean get
)
89 struct gl_texture_unit
*texUnit
;
91 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureImageUnits
) {
92 _mesa_error(ctx
, GL_INVALID_OPERATION
,
93 "gl%sTexParameter(current unit)", get
? "Get" : "");
97 texUnit
= _mesa_get_current_tex_unit(ctx
);
101 return texUnit
->CurrentTex
[TEXTURE_1D_INDEX
];
103 return texUnit
->CurrentTex
[TEXTURE_2D_INDEX
];
105 return texUnit
->CurrentTex
[TEXTURE_3D_INDEX
];
106 case GL_TEXTURE_CUBE_MAP
:
107 if (ctx
->Extensions
.ARB_texture_cube_map
) {
108 return texUnit
->CurrentTex
[TEXTURE_CUBE_INDEX
];
111 case GL_TEXTURE_RECTANGLE_NV
:
112 if (ctx
->Extensions
.NV_texture_rectangle
) {
113 return texUnit
->CurrentTex
[TEXTURE_RECT_INDEX
];
116 case GL_TEXTURE_1D_ARRAY_EXT
:
117 if (ctx
->Extensions
.MESA_texture_array
) {
118 return texUnit
->CurrentTex
[TEXTURE_1D_ARRAY_INDEX
];
121 case GL_TEXTURE_2D_ARRAY_EXT
:
122 if (ctx
->Extensions
.MESA_texture_array
) {
123 return texUnit
->CurrentTex
[TEXTURE_2D_ARRAY_INDEX
];
130 _mesa_error(ctx
, GL_INVALID_ENUM
,
131 "gl%sTexParameter(target)", get
? "Get" : "");
137 * Convert GL_RED/GREEN/BLUE/ALPHA/ZERO/ONE to SWIZZLE_X/Y/Z/W/ZERO/ONE.
138 * \return -1 if error.
141 comp_to_swizzle(GLenum comp
)
163 set_swizzle_component(GLuint
*swizzle
, GLuint comp
, GLuint swz
)
166 ASSERT(swz
<= SWIZZLE_NIL
);
168 GLuint mask
= 0x7 << (3 * comp
);
169 GLuint s
= (*swizzle
& ~mask
) | (swz
<< (3 * comp
));
176 * This is called just prior to changing any texture object state.
177 * Any pending rendering will be flushed out, we'll set the _NEW_TEXTURE
178 * state flag and then mark the texture object as 'incomplete' so that any
179 * per-texture derived state gets recomputed.
182 flush(GLcontext
*ctx
, struct gl_texture_object
*texObj
)
184 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
185 texObj
->_Complete
= GL_FALSE
;
190 * Set an integer-valued texture parameter
191 * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
194 set_tex_parameteri(GLcontext
*ctx
,
195 struct gl_texture_object
*texObj
,
196 GLenum pname
, const GLint
*params
)
199 case GL_TEXTURE_MIN_FILTER
:
200 if (texObj
->MinFilter
== params
[0])
206 texObj
->MinFilter
= params
[0];
208 case GL_NEAREST_MIPMAP_NEAREST
:
209 case GL_LINEAR_MIPMAP_NEAREST
:
210 case GL_NEAREST_MIPMAP_LINEAR
:
211 case GL_LINEAR_MIPMAP_LINEAR
:
212 if (texObj
->Target
!= GL_TEXTURE_RECTANGLE_NV
) {
214 texObj
->MinFilter
= params
[0];
219 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexParameter(param=0x%x)",
224 case GL_TEXTURE_MAG_FILTER
:
225 if (texObj
->MagFilter
== params
[0])
231 texObj
->MagFilter
= params
[0];
234 _mesa_error( ctx
, GL_INVALID_ENUM
, "glTexParameter(param=0x%x)",
239 case GL_TEXTURE_WRAP_S
:
240 if (texObj
->WrapS
== params
[0])
242 if (validate_texture_wrap_mode(ctx
, texObj
->Target
, params
[0])) {
244 texObj
->WrapS
= params
[0];
249 case GL_TEXTURE_WRAP_T
:
250 if (texObj
->WrapT
== params
[0])
252 if (validate_texture_wrap_mode(ctx
, texObj
->Target
, params
[0])) {
254 texObj
->WrapT
= params
[0];
259 case GL_TEXTURE_WRAP_R
:
260 if (texObj
->WrapR
== params
[0])
262 if (validate_texture_wrap_mode(ctx
, texObj
->Target
, params
[0])) {
264 texObj
->WrapR
= params
[0];
269 case GL_TEXTURE_BASE_LEVEL
:
270 if (texObj
->BaseLevel
== params
[0])
273 (texObj
->Target
== GL_TEXTURE_RECTANGLE_ARB
&& params
[0] != 0)) {
274 _mesa_error(ctx
, GL_INVALID_VALUE
,
275 "glTexParameter(param=%d)", params
[0]);
279 texObj
->BaseLevel
= params
[0];
282 case GL_TEXTURE_MAX_LEVEL
:
283 if (texObj
->MaxLevel
== params
[0])
285 if (params
[0] < 0 || texObj
->Target
== GL_TEXTURE_RECTANGLE_ARB
) {
286 _mesa_error(ctx
, GL_INVALID_OPERATION
,
287 "glTexParameter(param=%d)", params
[0]);
291 texObj
->MaxLevel
= params
[0];
294 case GL_GENERATE_MIPMAP_SGIS
:
295 if (ctx
->Extensions
.SGIS_generate_mipmap
) {
296 if (texObj
->GenerateMipmap
!= params
[0]) {
298 texObj
->GenerateMipmap
= params
[0] ? GL_TRUE
: GL_FALSE
;
304 _mesa_error(ctx
, GL_INVALID_ENUM
,
305 "glTexParameter(pname=GL_GENERATE_MIPMAP_SGIS)");
309 case GL_TEXTURE_COMPARE_MODE_ARB
:
310 if (ctx
->Extensions
.ARB_shadow
&&
311 (params
[0] == GL_NONE
||
312 params
[0] == GL_COMPARE_R_TO_TEXTURE_ARB
)) {
313 if (texObj
->CompareMode
!= params
[0]) {
315 texObj
->CompareMode
= params
[0];
321 _mesa_error(ctx
, GL_INVALID_ENUM
,
322 "glTexParameter(GL_TEXTURE_COMPARE_MODE_ARB)");
326 case GL_TEXTURE_COMPARE_FUNC_ARB
:
327 if (ctx
->Extensions
.ARB_shadow
) {
328 if (texObj
->CompareFunc
== params
[0])
334 texObj
->CompareFunc
= params
[0];
342 if (ctx
->Extensions
.EXT_shadow_funcs
) {
344 texObj
->CompareFunc
= params
[0];
349 _mesa_error(ctx
, GL_INVALID_ENUM
,
350 "glTexParameter(GL_TEXTURE_COMPARE_FUNC_ARB)");
354 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexParameter(pname=0x%x)", pname
);
358 case GL_DEPTH_TEXTURE_MODE_ARB
:
359 if (ctx
->Extensions
.ARB_depth_texture
&&
360 (params
[0] == GL_LUMINANCE
||
361 params
[0] == GL_INTENSITY
||
362 params
[0] == GL_ALPHA
)) {
363 if (texObj
->DepthMode
!= params
[0]) {
365 texObj
->DepthMode
= params
[0];
370 _mesa_error(ctx
, GL_INVALID_ENUM
,
371 "glTexParameter(GL_DEPTH_TEXTURE_MODE_ARB)");
375 #ifdef FEATURE_OES_draw_texture
376 case GL_TEXTURE_CROP_RECT_OES
:
377 texObj
->CropRect
[0] = params
[0];
378 texObj
->CropRect
[1] = params
[1];
379 texObj
->CropRect
[2] = params
[2];
380 texObj
->CropRect
[3] = params
[3];
384 case GL_TEXTURE_SWIZZLE_R_EXT
:
385 case GL_TEXTURE_SWIZZLE_G_EXT
:
386 case GL_TEXTURE_SWIZZLE_B_EXT
:
387 case GL_TEXTURE_SWIZZLE_A_EXT
:
388 if (ctx
->Extensions
.EXT_texture_swizzle
) {
389 const GLuint comp
= pname
- GL_TEXTURE_SWIZZLE_R_EXT
;
390 const GLint swz
= comp_to_swizzle(params
[0]);
392 _mesa_error(ctx
, GL_INVALID_OPERATION
,
393 "glTexParameter(swizzle 0x%x)", params
[0]);
399 texObj
->Swizzle
[comp
] = params
[0];
400 set_swizzle_component(&texObj
->_Swizzle
, comp
, swz
);
404 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexParameter(pname=0x%x)", pname
);
407 case GL_TEXTURE_SWIZZLE_RGBA_EXT
:
408 if (ctx
->Extensions
.EXT_texture_swizzle
) {
411 for (comp
= 0; comp
< 4; comp
++) {
412 const GLint swz
= comp_to_swizzle(params
[comp
]);
414 texObj
->Swizzle
[comp
] = params
[comp
];
415 set_swizzle_component(&texObj
->_Swizzle
, comp
, swz
);
418 _mesa_error(ctx
, GL_INVALID_OPERATION
,
419 "glTexParameter(swizzle 0x%x)", params
[comp
]);
425 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexParameter(pname=0x%x)", pname
);
429 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexParameter(pname=0x%x)", pname
);
436 * Set a float-valued texture parameter
437 * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
440 set_tex_parameterf(GLcontext
*ctx
,
441 struct gl_texture_object
*texObj
,
442 GLenum pname
, const GLfloat
*params
)
445 case GL_TEXTURE_MIN_LOD
:
446 if (texObj
->MinLod
== params
[0])
449 texObj
->MinLod
= params
[0];
452 case GL_TEXTURE_MAX_LOD
:
453 if (texObj
->MaxLod
== params
[0])
456 texObj
->MaxLod
= params
[0];
459 case GL_TEXTURE_PRIORITY
:
461 texObj
->Priority
= CLAMP(params
[0], 0.0F
, 1.0F
);
464 case GL_TEXTURE_MAX_ANISOTROPY_EXT
:
465 if (ctx
->Extensions
.EXT_texture_filter_anisotropic
) {
466 if (texObj
->MaxAnisotropy
== params
[0])
468 if (params
[0] < 1.0) {
469 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexParameter(param)" );
473 /* clamp to max, that's what NVIDIA does */
474 texObj
->MaxAnisotropy
= MIN2(params
[0],
475 ctx
->Const
.MaxTextureMaxAnisotropy
);
479 static GLuint count
= 0;
481 _mesa_error(ctx
, GL_INVALID_ENUM
,
482 "glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)");
486 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB
:
487 if (ctx
->Extensions
.ARB_shadow_ambient
) {
488 if (texObj
->CompareFailValue
!= params
[0]) {
490 texObj
->CompareFailValue
= CLAMP(params
[0], 0.0F
, 1.0F
);
495 _mesa_error(ctx
, GL_INVALID_ENUM
,
496 "glTexParameter(pname=GL_TEXTURE_COMPARE_FAIL_VALUE_ARB)");
500 case GL_TEXTURE_LOD_BIAS
:
501 /* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias */
502 if (ctx
->Extensions
.EXT_texture_lod_bias
) {
503 if (texObj
->LodBias
!= params
[0]) {
505 texObj
->LodBias
= params
[0];
512 case GL_TEXTURE_BORDER_COLOR
:
514 texObj
->BorderColor
.f
[RCOMP
] = params
[0];
515 texObj
->BorderColor
.f
[GCOMP
] = params
[1];
516 texObj
->BorderColor
.f
[BCOMP
] = params
[2];
517 texObj
->BorderColor
.f
[ACOMP
] = params
[3];
521 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexParameter(pname=0x%x)", pname
);
528 _mesa_TexParameterf(GLenum target
, GLenum pname
, GLfloat param
)
530 GLboolean need_update
;
531 struct gl_texture_object
*texObj
;
532 GET_CURRENT_CONTEXT(ctx
);
533 ASSERT_OUTSIDE_BEGIN_END(ctx
);
535 texObj
= get_texobj(ctx
, target
, GL_FALSE
);
540 case GL_TEXTURE_MIN_FILTER
:
541 case GL_TEXTURE_MAG_FILTER
:
542 case GL_TEXTURE_WRAP_S
:
543 case GL_TEXTURE_WRAP_T
:
544 case GL_TEXTURE_WRAP_R
:
545 case GL_TEXTURE_BASE_LEVEL
:
546 case GL_TEXTURE_MAX_LEVEL
:
547 case GL_GENERATE_MIPMAP_SGIS
:
548 case GL_TEXTURE_COMPARE_MODE_ARB
:
549 case GL_TEXTURE_COMPARE_FUNC_ARB
:
550 case GL_DEPTH_TEXTURE_MODE_ARB
:
552 /* convert float param to int */
554 p
[0] = (GLint
) param
;
555 p
[1] = p
[2] = p
[3] = 0;
556 need_update
= set_tex_parameteri(ctx
, texObj
, pname
, p
);
561 /* this will generate an error if pname is illegal */
564 p
[1] = p
[2] = p
[3] = 0.0F
;
565 need_update
= set_tex_parameterf(ctx
, texObj
, pname
, p
);
569 if (ctx
->Driver
.TexParameter
&& need_update
) {
570 ctx
->Driver
.TexParameter(ctx
, target
, texObj
, pname
, ¶m
);
576 _mesa_TexParameterfv(GLenum target
, GLenum pname
, const GLfloat
*params
)
578 GLboolean need_update
;
579 struct gl_texture_object
*texObj
;
580 GET_CURRENT_CONTEXT(ctx
);
581 ASSERT_OUTSIDE_BEGIN_END(ctx
);
583 texObj
= get_texobj(ctx
, target
, GL_FALSE
);
588 case GL_TEXTURE_MIN_FILTER
:
589 case GL_TEXTURE_MAG_FILTER
:
590 case GL_TEXTURE_WRAP_S
:
591 case GL_TEXTURE_WRAP_T
:
592 case GL_TEXTURE_WRAP_R
:
593 case GL_TEXTURE_BASE_LEVEL
:
594 case GL_TEXTURE_MAX_LEVEL
:
595 case GL_GENERATE_MIPMAP_SGIS
:
596 case GL_TEXTURE_COMPARE_MODE_ARB
:
597 case GL_TEXTURE_COMPARE_FUNC_ARB
:
598 case GL_DEPTH_TEXTURE_MODE_ARB
:
600 /* convert float param to int */
602 p
[0] = (GLint
) params
[0];
603 p
[1] = p
[2] = p
[3] = 0;
604 need_update
= set_tex_parameteri(ctx
, texObj
, pname
, p
);
608 #ifdef FEATURE_OES_draw_texture
609 case GL_TEXTURE_CROP_RECT_OES
:
611 /* convert float params to int */
613 iparams
[0] = (GLint
) params
[0];
614 iparams
[1] = (GLint
) params
[1];
615 iparams
[2] = (GLint
) params
[2];
616 iparams
[3] = (GLint
) params
[3];
617 need_update
= set_tex_parameteri(ctx
, texObj
, pname
, iparams
);
623 /* this will generate an error if pname is illegal */
624 need_update
= set_tex_parameterf(ctx
, texObj
, pname
, params
);
627 if (ctx
->Driver
.TexParameter
&& need_update
) {
628 ctx
->Driver
.TexParameter(ctx
, target
, texObj
, pname
, params
);
634 _mesa_TexParameteri(GLenum target
, GLenum pname
, GLint param
)
636 GLboolean need_update
;
637 struct gl_texture_object
*texObj
;
638 GET_CURRENT_CONTEXT(ctx
);
639 ASSERT_OUTSIDE_BEGIN_END(ctx
);
641 texObj
= get_texobj(ctx
, target
, GL_FALSE
);
646 case GL_TEXTURE_MIN_LOD
:
647 case GL_TEXTURE_MAX_LOD
:
648 case GL_TEXTURE_PRIORITY
:
649 case GL_TEXTURE_MAX_ANISOTROPY_EXT
:
650 case GL_TEXTURE_LOD_BIAS
:
651 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB
:
654 fparam
[0] = (GLfloat
) param
;
655 fparam
[1] = fparam
[2] = fparam
[3] = 0.0F
;
656 /* convert int param to float */
657 need_update
= set_tex_parameterf(ctx
, texObj
, pname
, fparam
);
661 /* this will generate an error if pname is illegal */
665 iparam
[1] = iparam
[2] = iparam
[3] = 0;
666 need_update
= set_tex_parameteri(ctx
, texObj
, pname
, iparam
);
670 if (ctx
->Driver
.TexParameter
&& need_update
) {
671 GLfloat fparam
= (GLfloat
) param
;
672 ctx
->Driver
.TexParameter(ctx
, target
, texObj
, pname
, &fparam
);
678 _mesa_TexParameteriv(GLenum target
, GLenum pname
, const GLint
*params
)
680 GLboolean need_update
;
681 struct gl_texture_object
*texObj
;
682 GET_CURRENT_CONTEXT(ctx
);
683 ASSERT_OUTSIDE_BEGIN_END(ctx
);
685 texObj
= get_texobj(ctx
, target
, GL_FALSE
);
690 case GL_TEXTURE_BORDER_COLOR
:
692 /* convert int params to float */
694 fparams
[0] = INT_TO_FLOAT(params
[0]);
695 fparams
[1] = INT_TO_FLOAT(params
[1]);
696 fparams
[2] = INT_TO_FLOAT(params
[2]);
697 fparams
[3] = INT_TO_FLOAT(params
[3]);
698 need_update
= set_tex_parameterf(ctx
, texObj
, pname
, fparams
);
701 case GL_TEXTURE_MIN_LOD
:
702 case GL_TEXTURE_MAX_LOD
:
703 case GL_TEXTURE_PRIORITY
:
704 case GL_TEXTURE_MAX_ANISOTROPY_EXT
:
705 case GL_TEXTURE_LOD_BIAS
:
706 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB
:
708 /* convert int param to float */
710 fparams
[0] = (GLfloat
) params
[0];
711 fparams
[1] = fparams
[2] = fparams
[3] = 0.0F
;
712 need_update
= set_tex_parameterf(ctx
, texObj
, pname
, fparams
);
716 /* this will generate an error if pname is illegal */
717 need_update
= set_tex_parameteri(ctx
, texObj
, pname
, params
);
720 if (ctx
->Driver
.TexParameter
&& need_update
) {
722 fparams
[0] = INT_TO_FLOAT(params
[0]);
723 if (pname
== GL_TEXTURE_BORDER_COLOR
||
724 pname
== GL_TEXTURE_CROP_RECT_OES
) {
725 fparams
[1] = INT_TO_FLOAT(params
[1]);
726 fparams
[2] = INT_TO_FLOAT(params
[2]);
727 fparams
[3] = INT_TO_FLOAT(params
[3]);
729 ctx
->Driver
.TexParameter(ctx
, target
, texObj
, pname
, fparams
);
735 * Set tex parameter to integer value(s). Primarily intended to set
736 * integer-valued texture border color (for integer-valued textures).
740 _mesa_TexParameterIiv(GLenum target
, GLenum pname
, const GLint
*params
)
742 struct gl_texture_object
*texObj
;
743 GET_CURRENT_CONTEXT(ctx
);
744 ASSERT_OUTSIDE_BEGIN_END(ctx
);
746 texObj
= get_texobj(ctx
, target
, GL_FALSE
);
751 case GL_TEXTURE_BORDER_COLOR
:
752 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
753 /* set the integer-valued border color */
754 COPY_4V(texObj
->BorderColor
.i
, params
);
757 _mesa_TexParameteriv(target
, pname
, params
);
760 /* XXX no driver hook for TexParameterIiv() yet */
765 * Set tex parameter to unsigned integer value(s). Primarily intended to set
766 * uint-valued texture border color (for integer-valued textures).
770 _mesa_TexParameterIuiv(GLenum target
, GLenum pname
, const GLuint
*params
)
772 struct gl_texture_object
*texObj
;
773 GET_CURRENT_CONTEXT(ctx
);
774 ASSERT_OUTSIDE_BEGIN_END(ctx
);
776 texObj
= get_texobj(ctx
, target
, GL_FALSE
);
781 case GL_TEXTURE_BORDER_COLOR
:
782 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
783 /* set the unsigned integer-valued border color */
784 COPY_4V(texObj
->BorderColor
.ui
, params
);
787 _mesa_TexParameteriv(target
, pname
, (const GLint
*) params
);
790 /* XXX no driver hook for TexParameterIuiv() yet */
797 _mesa_GetTexLevelParameterfv( GLenum target
, GLint level
,
798 GLenum pname
, GLfloat
*params
)
801 _mesa_GetTexLevelParameteriv( target
, level
, pname
, &iparam
);
802 *params
= (GLfloat
) iparam
;
807 _mesa_GetTexLevelParameteriv( GLenum target
, GLint level
,
808 GLenum pname
, GLint
*params
)
810 const struct gl_texture_unit
*texUnit
;
811 struct gl_texture_object
*texObj
;
812 const struct gl_texture_image
*img
= NULL
;
816 GET_CURRENT_CONTEXT(ctx
);
817 ASSERT_OUTSIDE_BEGIN_END(ctx
);
819 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureImageUnits
) {
820 _mesa_error(ctx
, GL_INVALID_OPERATION
,
821 "glGetTexLevelParameteriv(current unit)");
825 texUnit
= _mesa_get_current_tex_unit(ctx
);
827 /* this will catch bad target values */
828 maxLevels
= _mesa_max_texture_levels(ctx
, target
);
829 if (maxLevels
== 0) {
830 _mesa_error(ctx
, GL_INVALID_ENUM
,
831 "glGetTexLevelParameter[if]v(target=0x%x)", target
);
835 if (level
< 0 || level
>= maxLevels
) {
836 _mesa_error( ctx
, GL_INVALID_VALUE
, "glGetTexLevelParameter[if]v" );
840 texObj
= _mesa_select_tex_object(ctx
, texUnit
, target
);
841 _mesa_lock_texture(ctx
, texObj
);
843 img
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
844 if (!img
|| !img
->TexFormat
) {
845 /* undefined texture image */
846 if (pname
== GL_TEXTURE_COMPONENTS
)
853 texFormat
= img
->TexFormat
;
855 isProxy
= _mesa_is_proxy_texture(target
);
858 case GL_TEXTURE_WIDTH
:
859 *params
= img
->Width
;
861 case GL_TEXTURE_HEIGHT
:
862 *params
= img
->Height
;
864 case GL_TEXTURE_DEPTH
:
865 *params
= img
->Depth
;
867 case GL_TEXTURE_INTERNAL_FORMAT
:
868 if (_mesa_is_format_compressed(img
->TexFormat
)) {
869 /* need to return the actual compressed format */
870 *params
= _mesa_compressed_format_to_glenum(ctx
, img
->TexFormat
);
873 /* return the user's requested internal format */
874 *params
= img
->InternalFormat
;
877 case GL_TEXTURE_BORDER
:
878 *params
= img
->Border
;
880 case GL_TEXTURE_RED_SIZE
:
881 case GL_TEXTURE_GREEN_SIZE
:
882 case GL_TEXTURE_BLUE_SIZE
:
883 if (img
->_BaseFormat
== GL_RGB
|| img
->_BaseFormat
== GL_RGBA
)
884 *params
= _mesa_get_format_bits(texFormat
, pname
);
888 case GL_TEXTURE_ALPHA_SIZE
:
889 if (img
->_BaseFormat
== GL_ALPHA
||
890 img
->_BaseFormat
== GL_LUMINANCE_ALPHA
||
891 img
->_BaseFormat
== GL_RGBA
)
892 *params
= _mesa_get_format_bits(texFormat
, pname
);
896 case GL_TEXTURE_INTENSITY_SIZE
:
897 if (img
->_BaseFormat
!= GL_INTENSITY
)
900 *params
= _mesa_get_format_bits(texFormat
, pname
);
902 /* intensity probably stored as rgb texture */
903 *params
= MIN2(_mesa_get_format_bits(texFormat
, GL_TEXTURE_RED_SIZE
),
904 _mesa_get_format_bits(texFormat
, GL_TEXTURE_GREEN_SIZE
));
908 case GL_TEXTURE_LUMINANCE_SIZE
:
909 if (img
->_BaseFormat
!= GL_LUMINANCE
&&
910 img
->_BaseFormat
!= GL_LUMINANCE_ALPHA
)
913 *params
= _mesa_get_format_bits(texFormat
, pname
);
915 /* luminance probably stored as rgb texture */
916 *params
= MIN2(_mesa_get_format_bits(texFormat
, GL_TEXTURE_RED_SIZE
),
917 _mesa_get_format_bits(texFormat
, GL_TEXTURE_GREEN_SIZE
));
921 case GL_TEXTURE_INDEX_SIZE_EXT
:
922 if (img
->_BaseFormat
== GL_COLOR_INDEX
)
923 *params
= _mesa_get_format_bits(texFormat
, pname
);
927 case GL_TEXTURE_DEPTH_SIZE_ARB
:
928 if (ctx
->Extensions
.ARB_depth_texture
)
929 *params
= _mesa_get_format_bits(texFormat
, pname
);
931 _mesa_error(ctx
, GL_INVALID_ENUM
,
932 "glGetTexLevelParameter[if]v(pname)");
934 case GL_TEXTURE_STENCIL_SIZE_EXT
:
935 if (ctx
->Extensions
.EXT_packed_depth_stencil
||
936 ctx
->Extensions
.ARB_framebuffer_object
) {
937 *params
= _mesa_get_format_bits(texFormat
, pname
);
940 _mesa_error(ctx
, GL_INVALID_ENUM
,
941 "glGetTexLevelParameter[if]v(pname)");
945 /* GL_ARB_texture_compression */
946 case GL_TEXTURE_COMPRESSED_IMAGE_SIZE
:
947 if (_mesa_is_format_compressed(img
->TexFormat
) && !isProxy
) {
948 *params
= _mesa_format_image_size(texFormat
, img
->Width
,
949 img
->Height
, img
->Depth
);
952 _mesa_error(ctx
, GL_INVALID_OPERATION
,
953 "glGetTexLevelParameter[if]v(pname)");
956 case GL_TEXTURE_COMPRESSED
:
957 *params
= (GLint
) _mesa_is_format_compressed(img
->TexFormat
);
960 /* GL_ARB_texture_float */
961 case GL_TEXTURE_RED_TYPE_ARB
:
962 if (ctx
->Extensions
.ARB_texture_float
) {
963 *params
= _mesa_get_format_bits(texFormat
, GL_TEXTURE_RED_SIZE
) ?
964 _mesa_get_format_datatype(texFormat
) : GL_NONE
;
967 _mesa_error(ctx
, GL_INVALID_ENUM
,
968 "glGetTexLevelParameter[if]v(pname)");
971 case GL_TEXTURE_GREEN_TYPE_ARB
:
972 if (ctx
->Extensions
.ARB_texture_float
) {
973 *params
= _mesa_get_format_bits(texFormat
, GL_TEXTURE_GREEN_SIZE
) ?
974 _mesa_get_format_datatype(texFormat
) : GL_NONE
;
977 _mesa_error(ctx
, GL_INVALID_ENUM
,
978 "glGetTexLevelParameter[if]v(pname)");
981 case GL_TEXTURE_BLUE_TYPE_ARB
:
982 if (ctx
->Extensions
.ARB_texture_float
) {
983 *params
= _mesa_get_format_bits(texFormat
, GL_TEXTURE_BLUE_SIZE
) ?
984 _mesa_get_format_datatype(texFormat
) : GL_NONE
;
987 _mesa_error(ctx
, GL_INVALID_ENUM
,
988 "glGetTexLevelParameter[if]v(pname)");
991 case GL_TEXTURE_ALPHA_TYPE_ARB
:
992 if (ctx
->Extensions
.ARB_texture_float
) {
993 *params
= _mesa_get_format_bits(texFormat
, GL_TEXTURE_ALPHA_SIZE
) ?
994 _mesa_get_format_datatype(texFormat
) : GL_NONE
;
997 _mesa_error(ctx
, GL_INVALID_ENUM
,
998 "glGetTexLevelParameter[if]v(pname)");
1001 case GL_TEXTURE_LUMINANCE_TYPE_ARB
:
1002 if (ctx
->Extensions
.ARB_texture_float
) {
1003 *params
= _mesa_get_format_bits(texFormat
, GL_TEXTURE_LUMINANCE_SIZE
) ?
1004 _mesa_get_format_datatype(texFormat
) : GL_NONE
;
1007 _mesa_error(ctx
, GL_INVALID_ENUM
,
1008 "glGetTexLevelParameter[if]v(pname)");
1011 case GL_TEXTURE_INTENSITY_TYPE_ARB
:
1012 if (ctx
->Extensions
.ARB_texture_float
) {
1013 *params
= _mesa_get_format_bits(texFormat
, GL_TEXTURE_INTENSITY_SIZE
) ?
1014 _mesa_get_format_datatype(texFormat
) : GL_NONE
;
1017 _mesa_error(ctx
, GL_INVALID_ENUM
,
1018 "glGetTexLevelParameter[if]v(pname)");
1021 case GL_TEXTURE_DEPTH_TYPE_ARB
:
1022 if (ctx
->Extensions
.ARB_texture_float
) {
1023 *params
= _mesa_get_format_bits(texFormat
, GL_TEXTURE_DEPTH_SIZE
) ?
1024 _mesa_get_format_datatype(texFormat
) : GL_NONE
;
1027 _mesa_error(ctx
, GL_INVALID_ENUM
,
1028 "glGetTexLevelParameter[if]v(pname)");
1033 _mesa_error(ctx
, GL_INVALID_ENUM
,
1034 "glGetTexLevelParameter[if]v(pname)");
1038 _mesa_unlock_texture(ctx
, texObj
);
1044 _mesa_GetTexParameterfv( GLenum target
, GLenum pname
, GLfloat
*params
)
1046 struct gl_texture_object
*obj
;
1047 GLboolean error
= GL_FALSE
;
1048 GET_CURRENT_CONTEXT(ctx
);
1049 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1051 obj
= get_texobj(ctx
, target
, GL_TRUE
);
1055 _mesa_lock_texture(ctx
, obj
);
1057 case GL_TEXTURE_MAG_FILTER
:
1058 *params
= ENUM_TO_FLOAT(obj
->MagFilter
);
1060 case GL_TEXTURE_MIN_FILTER
:
1061 *params
= ENUM_TO_FLOAT(obj
->MinFilter
);
1063 case GL_TEXTURE_WRAP_S
:
1064 *params
= ENUM_TO_FLOAT(obj
->WrapS
);
1066 case GL_TEXTURE_WRAP_T
:
1067 *params
= ENUM_TO_FLOAT(obj
->WrapT
);
1069 case GL_TEXTURE_WRAP_R
:
1070 *params
= ENUM_TO_FLOAT(obj
->WrapR
);
1072 case GL_TEXTURE_BORDER_COLOR
:
1073 params
[0] = CLAMP(obj
->BorderColor
.f
[0], 0.0F
, 1.0F
);
1074 params
[1] = CLAMP(obj
->BorderColor
.f
[1], 0.0F
, 1.0F
);
1075 params
[2] = CLAMP(obj
->BorderColor
.f
[2], 0.0F
, 1.0F
);
1076 params
[3] = CLAMP(obj
->BorderColor
.f
[3], 0.0F
, 1.0F
);
1078 case GL_TEXTURE_RESIDENT
:
1081 if (ctx
->Driver
.IsTextureResident
)
1082 resident
= ctx
->Driver
.IsTextureResident(ctx
, obj
);
1085 *params
= ENUM_TO_FLOAT(resident
);
1088 case GL_TEXTURE_PRIORITY
:
1089 *params
= obj
->Priority
;
1091 case GL_TEXTURE_MIN_LOD
:
1092 *params
= obj
->MinLod
;
1094 case GL_TEXTURE_MAX_LOD
:
1095 *params
= obj
->MaxLod
;
1097 case GL_TEXTURE_BASE_LEVEL
:
1098 *params
= (GLfloat
) obj
->BaseLevel
;
1100 case GL_TEXTURE_MAX_LEVEL
:
1101 *params
= (GLfloat
) obj
->MaxLevel
;
1103 case GL_TEXTURE_MAX_ANISOTROPY_EXT
:
1104 if (ctx
->Extensions
.EXT_texture_filter_anisotropic
) {
1105 *params
= obj
->MaxAnisotropy
;
1110 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB
:
1111 if (ctx
->Extensions
.ARB_shadow_ambient
) {
1112 *params
= obj
->CompareFailValue
;
1117 case GL_GENERATE_MIPMAP_SGIS
:
1118 if (ctx
->Extensions
.SGIS_generate_mipmap
) {
1119 *params
= (GLfloat
) obj
->GenerateMipmap
;
1124 case GL_TEXTURE_COMPARE_MODE_ARB
:
1125 if (ctx
->Extensions
.ARB_shadow
) {
1126 *params
= (GLfloat
) obj
->CompareMode
;
1131 case GL_TEXTURE_COMPARE_FUNC_ARB
:
1132 if (ctx
->Extensions
.ARB_shadow
) {
1133 *params
= (GLfloat
) obj
->CompareFunc
;
1138 case GL_DEPTH_TEXTURE_MODE_ARB
:
1139 if (ctx
->Extensions
.ARB_depth_texture
) {
1140 *params
= (GLfloat
) obj
->DepthMode
;
1145 case GL_TEXTURE_LOD_BIAS
:
1146 if (ctx
->Extensions
.EXT_texture_lod_bias
) {
1147 *params
= obj
->LodBias
;
1152 #ifdef FEATURE_OES_draw_texture
1153 case GL_TEXTURE_CROP_RECT_OES
:
1154 params
[0] = obj
->CropRect
[0];
1155 params
[1] = obj
->CropRect
[1];
1156 params
[2] = obj
->CropRect
[2];
1157 params
[3] = obj
->CropRect
[3];
1161 case GL_TEXTURE_SWIZZLE_R_EXT
:
1162 case GL_TEXTURE_SWIZZLE_G_EXT
:
1163 case GL_TEXTURE_SWIZZLE_B_EXT
:
1164 case GL_TEXTURE_SWIZZLE_A_EXT
:
1165 if (ctx
->Extensions
.EXT_texture_swizzle
) {
1166 GLuint comp
= pname
- GL_TEXTURE_SWIZZLE_R_EXT
;
1167 *params
= (GLfloat
) obj
->Swizzle
[comp
];
1174 case GL_TEXTURE_SWIZZLE_RGBA_EXT
:
1175 if (ctx
->Extensions
.EXT_texture_swizzle
) {
1177 for (comp
= 0; comp
< 4; comp
++) {
1178 params
[comp
] = (GLfloat
) obj
->Swizzle
[comp
];
1192 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexParameterfv(pname=0x%x)",
1195 _mesa_unlock_texture(ctx
, obj
);
1200 _mesa_GetTexParameteriv( GLenum target
, GLenum pname
, GLint
*params
)
1202 struct gl_texture_object
*obj
;
1203 GLboolean error
= GL_FALSE
;
1204 GET_CURRENT_CONTEXT(ctx
);
1205 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1207 obj
= get_texobj(ctx
, target
, GL_TRUE
);
1211 _mesa_lock_texture(ctx
, obj
);
1213 case GL_TEXTURE_MAG_FILTER
:
1214 *params
= (GLint
) obj
->MagFilter
;
1216 case GL_TEXTURE_MIN_FILTER
:
1217 *params
= (GLint
) obj
->MinFilter
;
1219 case GL_TEXTURE_WRAP_S
:
1220 *params
= (GLint
) obj
->WrapS
;
1222 case GL_TEXTURE_WRAP_T
:
1223 *params
= (GLint
) obj
->WrapT
;
1225 case GL_TEXTURE_WRAP_R
:
1226 *params
= (GLint
) obj
->WrapR
;
1228 case GL_TEXTURE_BORDER_COLOR
:
1231 b
[0] = CLAMP(obj
->BorderColor
.f
[0], 0.0F
, 1.0F
);
1232 b
[1] = CLAMP(obj
->BorderColor
.f
[1], 0.0F
, 1.0F
);
1233 b
[2] = CLAMP(obj
->BorderColor
.f
[2], 0.0F
, 1.0F
);
1234 b
[3] = CLAMP(obj
->BorderColor
.f
[3], 0.0F
, 1.0F
);
1235 params
[0] = FLOAT_TO_INT(b
[0]);
1236 params
[1] = FLOAT_TO_INT(b
[1]);
1237 params
[2] = FLOAT_TO_INT(b
[2]);
1238 params
[3] = FLOAT_TO_INT(b
[3]);
1241 case GL_TEXTURE_RESIDENT
:
1244 if (ctx
->Driver
.IsTextureResident
)
1245 resident
= ctx
->Driver
.IsTextureResident(ctx
, obj
);
1248 *params
= (GLint
) resident
;
1251 case GL_TEXTURE_PRIORITY
:
1252 *params
= FLOAT_TO_INT(obj
->Priority
);
1254 case GL_TEXTURE_MIN_LOD
:
1255 *params
= (GLint
) obj
->MinLod
;
1257 case GL_TEXTURE_MAX_LOD
:
1258 *params
= (GLint
) obj
->MaxLod
;
1260 case GL_TEXTURE_BASE_LEVEL
:
1261 *params
= obj
->BaseLevel
;
1263 case GL_TEXTURE_MAX_LEVEL
:
1264 *params
= obj
->MaxLevel
;
1266 case GL_TEXTURE_MAX_ANISOTROPY_EXT
:
1267 if (ctx
->Extensions
.EXT_texture_filter_anisotropic
) {
1268 *params
= (GLint
) obj
->MaxAnisotropy
;
1274 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB
:
1275 if (ctx
->Extensions
.ARB_shadow_ambient
) {
1276 *params
= (GLint
) FLOAT_TO_INT(obj
->CompareFailValue
);
1282 case GL_GENERATE_MIPMAP_SGIS
:
1283 if (ctx
->Extensions
.SGIS_generate_mipmap
) {
1284 *params
= (GLint
) obj
->GenerateMipmap
;
1290 case GL_TEXTURE_COMPARE_MODE_ARB
:
1291 if (ctx
->Extensions
.ARB_shadow
) {
1292 *params
= (GLint
) obj
->CompareMode
;
1298 case GL_TEXTURE_COMPARE_FUNC_ARB
:
1299 if (ctx
->Extensions
.ARB_shadow
) {
1300 *params
= (GLint
) obj
->CompareFunc
;
1306 case GL_DEPTH_TEXTURE_MODE_ARB
:
1307 if (ctx
->Extensions
.ARB_depth_texture
) {
1308 *params
= (GLint
) obj
->DepthMode
;
1314 case GL_TEXTURE_LOD_BIAS
:
1315 if (ctx
->Extensions
.EXT_texture_lod_bias
) {
1316 *params
= (GLint
) obj
->LodBias
;
1322 #ifdef FEATURE_OES_draw_texture
1323 case GL_TEXTURE_CROP_RECT_OES
:
1324 params
[0] = obj
->CropRect
[0];
1325 params
[1] = obj
->CropRect
[1];
1326 params
[2] = obj
->CropRect
[2];
1327 params
[3] = obj
->CropRect
[3];
1330 case GL_TEXTURE_SWIZZLE_R_EXT
:
1331 case GL_TEXTURE_SWIZZLE_G_EXT
:
1332 case GL_TEXTURE_SWIZZLE_B_EXT
:
1333 case GL_TEXTURE_SWIZZLE_A_EXT
:
1334 if (ctx
->Extensions
.EXT_texture_swizzle
) {
1335 GLuint comp
= pname
- GL_TEXTURE_SWIZZLE_R_EXT
;
1336 *params
= obj
->Swizzle
[comp
];
1343 case GL_TEXTURE_SWIZZLE_RGBA_EXT
:
1344 if (ctx
->Extensions
.EXT_texture_swizzle
) {
1345 COPY_4V(params
, obj
->Swizzle
);
1353 ; /* silence warnings */
1357 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetTexParameteriv(pname=0x%x)",
1360 _mesa_unlock_texture(ctx
, obj
);
1364 /** New in GL 3.0 */
1366 _mesa_GetTexParameterIiv(GLenum target
, GLenum pname
, GLint
*params
)
1368 struct gl_texture_object
*texObj
;
1369 GET_CURRENT_CONTEXT(ctx
);
1370 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1372 texObj
= get_texobj(ctx
, target
, GL_TRUE
);
1375 case GL_TEXTURE_BORDER_COLOR
:
1376 COPY_4V(params
, texObj
->BorderColor
.i
);
1379 _mesa_GetTexParameteriv(target
, pname
, params
);
1384 /** New in GL 3.0 */
1386 _mesa_GetTexParameterIuiv(GLenum target
, GLenum pname
, GLuint
*params
)
1388 struct gl_texture_object
*texObj
;
1389 GET_CURRENT_CONTEXT(ctx
);
1390 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1392 texObj
= get_texobj(ctx
, target
, GL_TRUE
);
1395 case GL_TEXTURE_BORDER_COLOR
:
1396 COPY_4V(params
, texObj
->BorderColor
.i
);
1401 _mesa_GetTexParameteriv(target
, pname
, ip
);
1403 if (pname
== GL_TEXTURE_SWIZZLE_RGBA_EXT
||
1404 pname
== GL_TEXTURE_CROP_RECT_OES
) {