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) {