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/mfeatures.h"
40 #include "main/mtypes.h"
41 #include "main/state.h"
42 #include "main/texcompress.h"
43 #include "main/texparam.h"
44 #include "main/teximage.h"
45 #include "main/texstate.h"
46 #include "main/texfetch.h"
47 #include "program/prog_instruction.h"
51 * Check if a coordinate wrap mode is supported for the texture target.
52 * \return GL_TRUE if legal, GL_FALSE otherwise
55 validate_texture_wrap_mode(struct gl_context * ctx, GLenum target, GLenum wrap)
57 const struct gl_extensions * const e = & ctx->Extensions;
59 if (wrap == GL_CLAMP || wrap == GL_CLAMP_TO_EDGE ||
60 (wrap == GL_CLAMP_TO_BORDER && e->ARB_texture_border_clamp)) {
61 /* any texture target */
64 else if (target != GL_TEXTURE_RECTANGLE_NV &&
66 (wrap == GL_MIRRORED_REPEAT &&
67 e->ARB_texture_mirrored_repeat) ||
68 (wrap == GL_MIRROR_CLAMP_EXT &&
69 (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) ||
70 (wrap == GL_MIRROR_CLAMP_TO_EDGE_EXT &&
71 (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) ||
72 (wrap == GL_MIRROR_CLAMP_TO_BORDER_EXT &&
73 (e->EXT_texture_mirror_clamp)))) {
74 /* non-rectangle texture */
78 _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)", wrap );
84 * Get current texture object for given target.
85 * Return NULL if any error (and record the error).
86 * Note that this is different from _mesa_select_tex_object() in that proxy
87 * targets are not accepted.
88 * Only the glGetTexLevelParameter() functions accept proxy targets.
90 static struct gl_texture_object *
91 get_texobj(struct gl_context *ctx, GLenum target, GLboolean get)
93 struct gl_texture_unit *texUnit;
95 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) {
96 _mesa_error(ctx, GL_INVALID_OPERATION,
97 "gl%sTexParameter(current unit)", get ? "Get" : "");
101 texUnit = _mesa_get_current_tex_unit(ctx);
105 return texUnit->CurrentTex[TEXTURE_1D_INDEX];
107 return texUnit->CurrentTex[TEXTURE_2D_INDEX];
109 return texUnit->CurrentTex[TEXTURE_3D_INDEX];
110 case GL_TEXTURE_CUBE_MAP:
111 if (ctx->Extensions.ARB_texture_cube_map) {
112 return texUnit->CurrentTex[TEXTURE_CUBE_INDEX];
115 case GL_TEXTURE_RECTANGLE_NV:
116 if (ctx->Extensions.NV_texture_rectangle) {
117 return texUnit->CurrentTex[TEXTURE_RECT_INDEX];
120 case GL_TEXTURE_1D_ARRAY_EXT:
121 if (ctx->Extensions.MESA_texture_array ||
122 ctx->Extensions.EXT_texture_array) {
123 return texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX];
126 case GL_TEXTURE_2D_ARRAY_EXT:
127 if (ctx->Extensions.MESA_texture_array ||
128 ctx->Extensions.EXT_texture_array) {
129 return texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX];
136 _mesa_error(ctx, GL_INVALID_ENUM,
137 "gl%sTexParameter(target)", get ? "Get" : "");
143 * Convert GL_RED/GREEN/BLUE/ALPHA/ZERO/ONE to SWIZZLE_X/Y/Z/W/ZERO/ONE.
144 * \return -1 if error.
147 comp_to_swizzle(GLenum comp)
169 set_swizzle_component(GLuint *swizzle, GLuint comp, GLuint swz)
172 ASSERT(swz <= SWIZZLE_NIL);
174 GLuint mask = 0x7 << (3 * comp);
175 GLuint s = (*swizzle & ~mask) | (swz << (3 * comp));
182 * This is called just prior to changing any texture object state which
183 * will not effect texture completeness.
186 flush(struct gl_context *ctx)
188 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
193 * This is called just prior to changing any texture object state which
194 * can effect texture completeness (texture base level, max level,
195 * minification filter).
196 * Any pending rendering will be flushed out, we'll set the _NEW_TEXTURE
197 * state flag and then mark the texture object as 'incomplete' so that any
198 * per-texture derived state gets recomputed.
201 incomplete(struct gl_context *ctx, struct gl_texture_object *texObj)
203 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
204 texObj->_Complete = GL_FALSE;
209 * Set an integer-valued texture parameter
210 * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
213 set_tex_parameteri(struct gl_context *ctx,
214 struct gl_texture_object *texObj,
215 GLenum pname, const GLint *params)
218 case GL_TEXTURE_MIN_FILTER:
219 if (texObj->Sampler.MinFilter == params[0])
224 incomplete(ctx, texObj);
225 texObj->Sampler.MinFilter = params[0];
227 case GL_NEAREST_MIPMAP_NEAREST:
228 case GL_LINEAR_MIPMAP_NEAREST:
229 case GL_NEAREST_MIPMAP_LINEAR:
230 case GL_LINEAR_MIPMAP_LINEAR:
231 if (texObj->Target != GL_TEXTURE_RECTANGLE_NV) {
232 incomplete(ctx, texObj);
233 texObj->Sampler.MinFilter = params[0];
242 case GL_TEXTURE_MAG_FILTER:
243 if (texObj->Sampler.MagFilter == params[0])
248 flush(ctx); /* does not effect completeness */
249 texObj->Sampler.MagFilter = params[0];
256 case GL_TEXTURE_WRAP_S:
257 if (texObj->Sampler.WrapS == params[0])
259 if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
261 texObj->Sampler.WrapS = params[0];
266 case GL_TEXTURE_WRAP_T:
267 if (texObj->Sampler.WrapT == params[0])
269 if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
271 texObj->Sampler.WrapT = params[0];
276 case GL_TEXTURE_WRAP_R:
277 if (texObj->Sampler.WrapR == params[0])
279 if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
281 texObj->Sampler.WrapR = params[0];
286 case GL_TEXTURE_BASE_LEVEL:
287 if (texObj->BaseLevel == params[0])
290 (texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] != 0)) {
291 _mesa_error(ctx, GL_INVALID_VALUE,
292 "glTexParameter(param=%d)", params[0]);
295 incomplete(ctx, texObj);
296 texObj->BaseLevel = params[0];
299 case GL_TEXTURE_MAX_LEVEL:
300 if (texObj->MaxLevel == params[0])
302 if (params[0] < 0 || texObj->Target == GL_TEXTURE_RECTANGLE_ARB) {
303 _mesa_error(ctx, GL_INVALID_OPERATION,
304 "glTexParameter(param=%d)", params[0]);
307 incomplete(ctx, texObj);
308 texObj->MaxLevel = params[0];
311 case GL_GENERATE_MIPMAP_SGIS:
312 if (texObj->GenerateMipmap != params[0]) {
314 texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE;
319 case GL_TEXTURE_COMPARE_MODE_ARB:
320 if (ctx->Extensions.ARB_shadow) {
321 if (texObj->Sampler.CompareMode == params[0])
323 if (params[0] == GL_NONE ||
324 params[0] == GL_COMPARE_R_TO_TEXTURE_ARB) {
326 texObj->Sampler.CompareMode = params[0];
333 case GL_TEXTURE_COMPARE_FUNC_ARB:
334 if (ctx->Extensions.ARB_shadow) {
335 if (texObj->Sampler.CompareFunc == params[0])
341 texObj->Sampler.CompareFunc = params[0];
349 if (ctx->Extensions.EXT_shadow_funcs) {
351 texObj->Sampler.CompareFunc = params[0];
361 case GL_DEPTH_TEXTURE_MODE_ARB:
362 if (ctx->Extensions.ARB_depth_texture) {
363 if (texObj->Sampler.DepthMode == params[0])
365 if (params[0] == GL_LUMINANCE ||
366 params[0] == GL_INTENSITY ||
367 params[0] == GL_ALPHA ||
368 (ctx->Extensions.ARB_texture_rg && params[0] == GL_RED)) {
370 texObj->Sampler.DepthMode = params[0];
377 #if FEATURE_OES_draw_texture
378 case GL_TEXTURE_CROP_RECT_OES:
379 texObj->CropRect[0] = params[0];
380 texObj->CropRect[1] = params[1];
381 texObj->CropRect[2] = params[2];
382 texObj->CropRect[3] = params[3];
386 case GL_TEXTURE_SWIZZLE_R_EXT:
387 case GL_TEXTURE_SWIZZLE_G_EXT:
388 case GL_TEXTURE_SWIZZLE_B_EXT:
389 case GL_TEXTURE_SWIZZLE_A_EXT:
390 if (ctx->Extensions.EXT_texture_swizzle) {
391 const GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;
392 const GLint swz = comp_to_swizzle(params[0]);
394 _mesa_error(ctx, GL_INVALID_OPERATION,
395 "glTexParameter(swizzle 0x%x)", params[0]);
401 texObj->Swizzle[comp] = params[0];
402 set_swizzle_component(&texObj->_Swizzle, comp, swz);
408 case GL_TEXTURE_SWIZZLE_RGBA_EXT:
409 if (ctx->Extensions.EXT_texture_swizzle) {
412 for (comp = 0; comp < 4; comp++) {
413 const GLint swz = comp_to_swizzle(params[comp]);
415 texObj->Swizzle[comp] = params[comp];
416 set_swizzle_component(&texObj->_Swizzle, comp, swz);
419 _mesa_error(ctx, GL_INVALID_OPERATION,
420 "glTexParameter(swizzle 0x%x)", params[comp]);
428 case GL_TEXTURE_SRGB_DECODE_EXT:
429 if (ctx->Extensions.EXT_texture_sRGB_decode) {
430 GLenum decode = params[0];
431 if (decode == GL_DECODE_EXT || decode == GL_SKIP_DECODE_EXT) {
432 if (texObj->Sampler.sRGBDecode != decode) {
434 texObj->Sampler.sRGBDecode = decode;
435 _mesa_update_fetch_functions(texObj);
442 case GL_TEXTURE_CUBE_MAP_SEAMLESS:
443 if (ctx->Extensions.AMD_seamless_cubemap_per_texture) {
444 GLenum param = params[0];
445 if (param != GL_TRUE && param != GL_FALSE) {
448 if (param != texObj->Sampler.CubeMapSeamless) {
450 texObj->Sampler.CubeMapSeamless = param;
461 _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=%s)",
462 _mesa_lookup_enum_by_nr(pname));
466 _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(param=%s)",
467 _mesa_lookup_enum_by_nr(params[0]));
473 * Set a float-valued texture parameter
474 * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
477 set_tex_parameterf(struct gl_context *ctx,
478 struct gl_texture_object *texObj,
479 GLenum pname, const GLfloat *params)
482 case GL_TEXTURE_MIN_LOD:
483 if (texObj->Sampler.MinLod == params[0])
486 texObj->Sampler.MinLod = params[0];
489 case GL_TEXTURE_MAX_LOD:
490 if (texObj->Sampler.MaxLod == params[0])
493 texObj->Sampler.MaxLod = params[0];
496 case GL_TEXTURE_PRIORITY:
498 texObj->Priority = CLAMP(params[0], 0.0F, 1.0F);
501 case GL_TEXTURE_MAX_ANISOTROPY_EXT:
502 if (ctx->Extensions.EXT_texture_filter_anisotropic) {
503 if (texObj->Sampler.MaxAnisotropy == params[0])
505 if (params[0] < 1.0) {
506 _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
510 /* clamp to max, that's what NVIDIA does */
511 texObj->Sampler.MaxAnisotropy = MIN2(params[0],
512 ctx->Const.MaxTextureMaxAnisotropy);
516 static GLuint count = 0;
518 _mesa_error(ctx, GL_INVALID_ENUM,
519 "glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)");
523 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
524 if (ctx->Extensions.ARB_shadow_ambient) {
525 if (texObj->Sampler.CompareFailValue != params[0]) {
527 texObj->Sampler.CompareFailValue = CLAMP(params[0], 0.0F, 1.0F);
532 _mesa_error(ctx, GL_INVALID_ENUM,
533 "glTexParameter(pname=GL_TEXTURE_COMPARE_FAIL_VALUE_ARB)");
537 case GL_TEXTURE_LOD_BIAS:
538 /* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias */
539 if (ctx->Extensions.EXT_texture_lod_bias) {
540 if (texObj->Sampler.LodBias != params[0]) {
542 texObj->Sampler.LodBias = params[0];
549 case GL_TEXTURE_BORDER_COLOR:
551 /* ARB_texture_float disables clamping */
552 if (ctx->Extensions.ARB_texture_float) {
553 texObj->Sampler.BorderColor.f[RCOMP] = params[0];
554 texObj->Sampler.BorderColor.f[GCOMP] = params[1];
555 texObj->Sampler.BorderColor.f[BCOMP] = params[2];
556 texObj->Sampler.BorderColor.f[ACOMP] = params[3];
558 texObj->Sampler.BorderColor.f[RCOMP] = CLAMP(params[0], 0.0F, 1.0F);
559 texObj->Sampler.BorderColor.f[GCOMP] = CLAMP(params[1], 0.0F, 1.0F);
560 texObj->Sampler.BorderColor.f[BCOMP] = CLAMP(params[2], 0.0F, 1.0F);
561 texObj->Sampler.BorderColor.f[ACOMP] = CLAMP(params[3], 0.0F, 1.0F);
566 _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
573 _mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param)
575 GLboolean need_update;
576 struct gl_texture_object *texObj;
577 GET_CURRENT_CONTEXT(ctx);
578 ASSERT_OUTSIDE_BEGIN_END(ctx);
580 texObj = get_texobj(ctx, target, GL_FALSE);
585 case GL_TEXTURE_MIN_FILTER:
586 case GL_TEXTURE_MAG_FILTER:
587 case GL_TEXTURE_WRAP_S:
588 case GL_TEXTURE_WRAP_T:
589 case GL_TEXTURE_WRAP_R:
590 case GL_TEXTURE_BASE_LEVEL:
591 case GL_TEXTURE_MAX_LEVEL:
592 case GL_GENERATE_MIPMAP_SGIS:
593 case GL_TEXTURE_COMPARE_MODE_ARB:
594 case GL_TEXTURE_COMPARE_FUNC_ARB:
595 case GL_DEPTH_TEXTURE_MODE_ARB:
596 case GL_TEXTURE_SRGB_DECODE_EXT:
597 case GL_TEXTURE_CUBE_MAP_SEAMLESS:
599 /* convert float param to int */
601 p[0] = (GLint) param;
602 p[1] = p[2] = p[3] = 0;
603 need_update = set_tex_parameteri(ctx, texObj, pname, p);
608 /* this will generate an error if pname is illegal */
611 p[1] = p[2] = p[3] = 0.0F;
612 need_update = set_tex_parameterf(ctx, texObj, pname, p);
616 if (ctx->Driver.TexParameter && need_update) {
617 ctx->Driver.TexParameter(ctx, target, texObj, pname, ¶m);
623 _mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params)
625 GLboolean need_update;
626 struct gl_texture_object *texObj;
627 GET_CURRENT_CONTEXT(ctx);
628 ASSERT_OUTSIDE_BEGIN_END(ctx);
630 texObj = get_texobj(ctx, target, GL_FALSE);
635 case GL_TEXTURE_MIN_FILTER:
636 case GL_TEXTURE_MAG_FILTER:
637 case GL_TEXTURE_WRAP_S:
638 case GL_TEXTURE_WRAP_T:
639 case GL_TEXTURE_WRAP_R:
640 case GL_TEXTURE_BASE_LEVEL:
641 case GL_TEXTURE_MAX_LEVEL:
642 case GL_GENERATE_MIPMAP_SGIS:
643 case GL_TEXTURE_COMPARE_MODE_ARB:
644 case GL_TEXTURE_COMPARE_FUNC_ARB:
645 case GL_DEPTH_TEXTURE_MODE_ARB:
646 case GL_TEXTURE_SRGB_DECODE_EXT:
647 case GL_TEXTURE_CUBE_MAP_SEAMLESS:
649 /* convert float param to int */
651 p[0] = (GLint) params[0];
652 p[1] = p[2] = p[3] = 0;
653 need_update = set_tex_parameteri(ctx, texObj, pname, p);
657 #if FEATURE_OES_draw_texture
658 case GL_TEXTURE_CROP_RECT_OES:
660 /* convert float params to int */
662 iparams[0] = (GLint) params[0];
663 iparams[1] = (GLint) params[1];
664 iparams[2] = (GLint) params[2];
665 iparams[3] = (GLint) params[3];
666 need_update = set_tex_parameteri(ctx, texObj, pname, iparams);
672 /* this will generate an error if pname is illegal */
673 need_update = set_tex_parameterf(ctx, texObj, pname, params);
676 if (ctx->Driver.TexParameter && need_update) {
677 ctx->Driver.TexParameter(ctx, target, texObj, pname, params);
683 _mesa_TexParameteri(GLenum target, GLenum pname, GLint param)
685 GLboolean need_update;
686 struct gl_texture_object *texObj;
687 GET_CURRENT_CONTEXT(ctx);
688 ASSERT_OUTSIDE_BEGIN_END(ctx);
690 texObj = get_texobj(ctx, target, GL_FALSE);
695 case GL_TEXTURE_MIN_LOD:
696 case GL_TEXTURE_MAX_LOD:
697 case GL_TEXTURE_PRIORITY:
698 case GL_TEXTURE_MAX_ANISOTROPY_EXT:
699 case GL_TEXTURE_LOD_BIAS:
700 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
703 fparam[0] = (GLfloat) param;
704 fparam[1] = fparam[2] = fparam[3] = 0.0F;
705 /* convert int param to float */
706 need_update = set_tex_parameterf(ctx, texObj, pname, fparam);
710 /* this will generate an error if pname is illegal */
714 iparam[1] = iparam[2] = iparam[3] = 0;
715 need_update = set_tex_parameteri(ctx, texObj, pname, iparam);
719 if (ctx->Driver.TexParameter && need_update) {
720 GLfloat fparam = (GLfloat) param;
721 ctx->Driver.TexParameter(ctx, target, texObj, pname, &fparam);
727 _mesa_TexParameteriv(GLenum target, GLenum pname, const GLint *params)
729 GLboolean need_update;
730 struct gl_texture_object *texObj;
731 GET_CURRENT_CONTEXT(ctx);
732 ASSERT_OUTSIDE_BEGIN_END(ctx);
734 texObj = get_texobj(ctx, target, GL_FALSE);
739 case GL_TEXTURE_BORDER_COLOR:
741 /* convert int params to float */
743 fparams[0] = INT_TO_FLOAT(params[0]);
744 fparams[1] = INT_TO_FLOAT(params[1]);
745 fparams[2] = INT_TO_FLOAT(params[2]);
746 fparams[3] = INT_TO_FLOAT(params[3]);
747 need_update = set_tex_parameterf(ctx, texObj, pname, fparams);
750 case GL_TEXTURE_MIN_LOD:
751 case GL_TEXTURE_MAX_LOD:
752 case GL_TEXTURE_PRIORITY:
753 case GL_TEXTURE_MAX_ANISOTROPY_EXT:
754 case GL_TEXTURE_LOD_BIAS:
755 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
757 /* convert int param to float */
759 fparams[0] = (GLfloat) params[0];
760 fparams[1] = fparams[2] = fparams[3] = 0.0F;
761 need_update = set_tex_parameterf(ctx, texObj, pname, fparams);
765 /* this will generate an error if pname is illegal */
766 need_update = set_tex_parameteri(ctx, texObj, pname, params);
769 if (ctx->Driver.TexParameter && need_update) {
771 fparams[0] = INT_TO_FLOAT(params[0]);
772 if (pname == GL_TEXTURE_BORDER_COLOR ||
773 pname == GL_TEXTURE_CROP_RECT_OES) {
774 fparams[1] = INT_TO_FLOAT(params[1]);
775 fparams[2] = INT_TO_FLOAT(params[2]);
776 fparams[3] = INT_TO_FLOAT(params[3]);
778 ctx->Driver.TexParameter(ctx, target, texObj, pname, fparams);
784 * Set tex parameter to integer value(s). Primarily intended to set
785 * integer-valued texture border color (for integer-valued textures).
789 _mesa_TexParameterIiv(GLenum target, GLenum pname, const GLint *params)
791 struct gl_texture_object *texObj;
792 GET_CURRENT_CONTEXT(ctx);
793 ASSERT_OUTSIDE_BEGIN_END(ctx);
795 texObj = get_texobj(ctx, target, GL_FALSE);
800 case GL_TEXTURE_BORDER_COLOR:
801 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
802 /* set the integer-valued border color */
803 COPY_4V(texObj->Sampler.BorderColor.i, params);
806 _mesa_TexParameteriv(target, pname, params);
809 /* XXX no driver hook for TexParameterIiv() yet */
814 * Set tex parameter to unsigned integer value(s). Primarily intended to set
815 * uint-valued texture border color (for integer-valued textures).
819 _mesa_TexParameterIuiv(GLenum target, GLenum pname, const GLuint *params)
821 struct gl_texture_object *texObj;
822 GET_CURRENT_CONTEXT(ctx);
823 ASSERT_OUTSIDE_BEGIN_END(ctx);
825 texObj = get_texobj(ctx, target, GL_FALSE);
830 case GL_TEXTURE_BORDER_COLOR:
831 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
832 /* set the unsigned integer-valued border color */
833 COPY_4V(texObj->Sampler.BorderColor.ui, params);
836 _mesa_TexParameteriv(target, pname, (const GLint *) params);
839 /* XXX no driver hook for TexParameterIuiv() yet */
846 _mesa_GetTexLevelParameterfv( GLenum target, GLint level,
847 GLenum pname, GLfloat *params )
850 _mesa_GetTexLevelParameteriv( target, level, pname, &iparam );
851 *params = (GLfloat) iparam;
856 _mesa_GetTexLevelParameteriv( GLenum target, GLint level,
857 GLenum pname, GLint *params )
859 const struct gl_texture_unit *texUnit;
860 struct gl_texture_object *texObj;
861 const struct gl_texture_image *img = NULL;
864 GET_CURRENT_CONTEXT(ctx);
865 ASSERT_OUTSIDE_BEGIN_END(ctx);
867 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) {
868 _mesa_error(ctx, GL_INVALID_OPERATION,
869 "glGetTexLevelParameteriv(current unit)");
873 texUnit = _mesa_get_current_tex_unit(ctx);
875 /* this will catch bad target values */
876 maxLevels = _mesa_max_texture_levels(ctx, target);
877 if (maxLevels == 0) {
878 _mesa_error(ctx, GL_INVALID_ENUM,
879 "glGetTexLevelParameter[if]v(target=0x%x)", target);
883 if (level < 0 || level >= maxLevels) {
884 _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" );
888 texObj = _mesa_select_tex_object(ctx, texUnit, target);
890 img = _mesa_select_tex_image(ctx, texObj, target, level);
891 if (!img || !img->TexFormat) {
892 /* undefined texture image */
893 if (pname == GL_TEXTURE_COMPONENTS)
900 texFormat = img->TexFormat;
903 case GL_TEXTURE_WIDTH:
904 *params = img->Width;
906 case GL_TEXTURE_HEIGHT:
907 *params = img->Height;
909 case GL_TEXTURE_DEPTH:
910 *params = img->Depth;
912 case GL_TEXTURE_INTERNAL_FORMAT:
913 if (_mesa_is_format_compressed(texFormat)) {
914 /* need to return the actual compressed format */
915 *params = _mesa_compressed_format_to_glenum(ctx, texFormat);
918 /* If the true internal format is not compressed but the user
919 * requested a generic compressed format, we have to return the
920 * generic base format that matches.
922 * From page 119 (page 129 of the PDF) of the OpenGL 1.3 spec:
924 * "If no specific compressed format is available,
925 * internalformat is instead replaced by the corresponding base
928 * Otherwise just return the user's requested internal format
931 _mesa_gl_compressed_format_base_format(img->InternalFormat);
933 *params = (f != 0) ? f : img->InternalFormat;
936 case GL_TEXTURE_BORDER:
937 *params = img->Border;
939 case GL_TEXTURE_RED_SIZE:
940 if (img->_BaseFormat == GL_RED) {
941 *params = _mesa_get_format_bits(texFormat, pname);
945 case GL_TEXTURE_GREEN_SIZE:
946 if (img->_BaseFormat == GL_RG) {
947 *params = _mesa_get_format_bits(texFormat, pname);
951 case GL_TEXTURE_BLUE_SIZE:
952 if (img->_BaseFormat == GL_RGB || img->_BaseFormat == GL_RGBA)
953 *params = _mesa_get_format_bits(texFormat, pname);
957 case GL_TEXTURE_ALPHA_SIZE:
958 if (img->_BaseFormat == GL_ALPHA ||
959 img->_BaseFormat == GL_LUMINANCE_ALPHA ||
960 img->_BaseFormat == GL_RGBA)
961 *params = _mesa_get_format_bits(texFormat, pname);
965 case GL_TEXTURE_INTENSITY_SIZE:
966 if (img->_BaseFormat != GL_INTENSITY)
969 *params = _mesa_get_format_bits(texFormat, pname);
971 /* intensity probably stored as rgb texture */
972 *params = MIN2(_mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE),
973 _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE));
977 case GL_TEXTURE_LUMINANCE_SIZE:
978 if (img->_BaseFormat != GL_LUMINANCE &&
979 img->_BaseFormat != GL_LUMINANCE_ALPHA)
982 *params = _mesa_get_format_bits(texFormat, pname);
984 /* luminance probably stored as rgb texture */
985 *params = MIN2(_mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE),
986 _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE));
990 case GL_TEXTURE_INDEX_SIZE_EXT:
991 if (img->_BaseFormat == GL_COLOR_INDEX)
992 *params = _mesa_get_format_bits(texFormat, pname);
996 case GL_TEXTURE_DEPTH_SIZE_ARB:
997 if (ctx->Extensions.ARB_depth_texture)
998 *params = _mesa_get_format_bits(texFormat, pname);
1002 case GL_TEXTURE_STENCIL_SIZE_EXT:
1003 if (ctx->Extensions.EXT_packed_depth_stencil ||
1004 ctx->Extensions.ARB_framebuffer_object) {
1005 *params = _mesa_get_format_bits(texFormat, pname);
1011 case GL_TEXTURE_SHARED_SIZE:
1012 if (ctx->VersionMajor >= 3 ||
1013 ctx->Extensions.EXT_texture_shared_exponent) {
1014 *params = texFormat == MESA_FORMAT_RGB9_E5_FLOAT ? 5 : 0;
1021 /* GL_ARB_texture_compression */
1022 case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
1023 if (_mesa_is_format_compressed(texFormat) &&
1024 !_mesa_is_proxy_texture(target)) {
1025 *params = _mesa_format_image_size(texFormat, img->Width,
1026 img->Height, img->Depth);
1029 _mesa_error(ctx, GL_INVALID_OPERATION,
1030 "glGetTexLevelParameter[if]v(pname)");
1033 case GL_TEXTURE_COMPRESSED:
1034 *params = (GLint) _mesa_is_format_compressed(texFormat);
1037 /* GL_ARB_texture_float */
1038 case GL_TEXTURE_RED_TYPE_ARB:
1039 if (ctx->Extensions.ARB_texture_float) {
1040 *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE) ?
1041 _mesa_get_format_datatype(texFormat) : GL_NONE;
1047 case GL_TEXTURE_GREEN_TYPE_ARB:
1048 if (ctx->Extensions.ARB_texture_float) {
1049 *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE) ?
1050 _mesa_get_format_datatype(texFormat) : GL_NONE;
1056 case GL_TEXTURE_BLUE_TYPE_ARB:
1057 if (ctx->Extensions.ARB_texture_float) {
1058 *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_BLUE_SIZE) ?
1059 _mesa_get_format_datatype(texFormat) : GL_NONE;
1065 case GL_TEXTURE_ALPHA_TYPE_ARB:
1066 if (ctx->Extensions.ARB_texture_float) {
1067 *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_ALPHA_SIZE) ?
1068 _mesa_get_format_datatype(texFormat) : GL_NONE;
1074 case GL_TEXTURE_LUMINANCE_TYPE_ARB:
1075 if (ctx->Extensions.ARB_texture_float) {
1076 *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_LUMINANCE_SIZE) ?
1077 _mesa_get_format_datatype(texFormat) : GL_NONE;
1083 case GL_TEXTURE_INTENSITY_TYPE_ARB:
1084 if (ctx->Extensions.ARB_texture_float) {
1085 *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_INTENSITY_SIZE) ?
1086 _mesa_get_format_datatype(texFormat) : GL_NONE;
1092 case GL_TEXTURE_DEPTH_TYPE_ARB:
1093 if (ctx->Extensions.ARB_texture_float) {
1094 *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_DEPTH_SIZE) ?
1095 _mesa_get_format_datatype(texFormat) : GL_NONE;
1106 /* no error if we get here */
1110 _mesa_error(ctx, GL_INVALID_ENUM,
1111 "glGetTexLevelParameter[if]v(pname=%s)",
1112 _mesa_lookup_enum_by_nr(pname));
1118 _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
1120 struct gl_texture_object *obj;
1121 GLboolean error = GL_FALSE;
1122 GET_CURRENT_CONTEXT(ctx);
1123 ASSERT_OUTSIDE_BEGIN_END(ctx);
1125 obj = get_texobj(ctx, target, GL_TRUE);
1129 _mesa_lock_texture(ctx, obj);
1131 case GL_TEXTURE_MAG_FILTER:
1132 *params = ENUM_TO_FLOAT(obj->Sampler.MagFilter);
1134 case GL_TEXTURE_MIN_FILTER:
1135 *params = ENUM_TO_FLOAT(obj->Sampler.MinFilter);
1137 case GL_TEXTURE_WRAP_S:
1138 *params = ENUM_TO_FLOAT(obj->Sampler.WrapS);
1140 case GL_TEXTURE_WRAP_T:
1141 *params = ENUM_TO_FLOAT(obj->Sampler.WrapT);
1143 case GL_TEXTURE_WRAP_R:
1144 *params = ENUM_TO_FLOAT(obj->Sampler.WrapR);
1146 case GL_TEXTURE_BORDER_COLOR:
1147 if(ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1148 _mesa_update_state_locked(ctx);
1149 if(ctx->Color._ClampFragmentColor)
1151 params[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
1152 params[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
1153 params[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);
1154 params[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F);
1158 params[0] = obj->Sampler.BorderColor.f[0];
1159 params[1] = obj->Sampler.BorderColor.f[1];
1160 params[2] = obj->Sampler.BorderColor.f[2];
1161 params[3] = obj->Sampler.BorderColor.f[3];
1164 case GL_TEXTURE_RESIDENT:
1167 if (ctx->Driver.IsTextureResident)
1168 resident = ctx->Driver.IsTextureResident(ctx, obj);
1171 *params = ENUM_TO_FLOAT(resident);
1174 case GL_TEXTURE_PRIORITY:
1175 *params = obj->Priority;
1177 case GL_TEXTURE_MIN_LOD:
1178 *params = obj->Sampler.MinLod;
1180 case GL_TEXTURE_MAX_LOD:
1181 *params = obj->Sampler.MaxLod;
1183 case GL_TEXTURE_BASE_LEVEL:
1184 *params = (GLfloat) obj->BaseLevel;
1186 case GL_TEXTURE_MAX_LEVEL:
1187 *params = (GLfloat) obj->MaxLevel;
1189 case GL_TEXTURE_MAX_ANISOTROPY_EXT:
1190 if (ctx->Extensions.EXT_texture_filter_anisotropic) {
1191 *params = obj->Sampler.MaxAnisotropy;
1196 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
1197 if (ctx->Extensions.ARB_shadow_ambient) {
1198 *params = obj->Sampler.CompareFailValue;
1203 case GL_GENERATE_MIPMAP_SGIS:
1204 *params = (GLfloat) obj->GenerateMipmap;
1206 case GL_TEXTURE_COMPARE_MODE_ARB:
1207 if (ctx->Extensions.ARB_shadow) {
1208 *params = (GLfloat) obj->Sampler.CompareMode;
1213 case GL_TEXTURE_COMPARE_FUNC_ARB:
1214 if (ctx->Extensions.ARB_shadow) {
1215 *params = (GLfloat) obj->Sampler.CompareFunc;
1220 case GL_DEPTH_TEXTURE_MODE_ARB:
1221 if (ctx->Extensions.ARB_depth_texture) {
1222 *params = (GLfloat) obj->Sampler.DepthMode;
1227 case GL_TEXTURE_LOD_BIAS:
1228 if (ctx->Extensions.EXT_texture_lod_bias) {
1229 *params = obj->Sampler.LodBias;
1234 #if FEATURE_OES_draw_texture
1235 case GL_TEXTURE_CROP_RECT_OES:
1236 params[0] = obj->CropRect[0];
1237 params[1] = obj->CropRect[1];
1238 params[2] = obj->CropRect[2];
1239 params[3] = obj->CropRect[3];
1243 case GL_TEXTURE_SWIZZLE_R_EXT:
1244 case GL_TEXTURE_SWIZZLE_G_EXT:
1245 case GL_TEXTURE_SWIZZLE_B_EXT:
1246 case GL_TEXTURE_SWIZZLE_A_EXT:
1247 if (ctx->Extensions.EXT_texture_swizzle) {
1248 GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;
1249 *params = (GLfloat) obj->Swizzle[comp];
1256 case GL_TEXTURE_SWIZZLE_RGBA_EXT:
1257 if (ctx->Extensions.EXT_texture_swizzle) {
1259 for (comp = 0; comp < 4; comp++) {
1260 params[comp] = (GLfloat) obj->Swizzle[comp];
1268 case GL_TEXTURE_CUBE_MAP_SEAMLESS:
1269 if (ctx->Extensions.AMD_seamless_cubemap_per_texture) {
1270 *params = (GLfloat) obj->Sampler.CubeMapSeamless;
1283 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname=0x%x)",
1286 _mesa_unlock_texture(ctx, obj);
1291 _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
1293 struct gl_texture_object *obj;
1294 GLboolean error = GL_FALSE;
1295 GET_CURRENT_CONTEXT(ctx);
1296 ASSERT_OUTSIDE_BEGIN_END(ctx);
1298 obj = get_texobj(ctx, target, GL_TRUE);
1302 _mesa_lock_texture(ctx, obj);
1304 case GL_TEXTURE_MAG_FILTER:
1305 *params = (GLint) obj->Sampler.MagFilter;
1307 case GL_TEXTURE_MIN_FILTER:
1308 *params = (GLint) obj->Sampler.MinFilter;
1310 case GL_TEXTURE_WRAP_S:
1311 *params = (GLint) obj->Sampler.WrapS;
1313 case GL_TEXTURE_WRAP_T:
1314 *params = (GLint) obj->Sampler.WrapT;
1316 case GL_TEXTURE_WRAP_R:
1317 *params = (GLint) obj->Sampler.WrapR;
1319 case GL_TEXTURE_BORDER_COLOR:
1322 b[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
1323 b[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
1324 b[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);
1325 b[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F);
1326 params[0] = FLOAT_TO_INT(b[0]);
1327 params[1] = FLOAT_TO_INT(b[1]);
1328 params[2] = FLOAT_TO_INT(b[2]);
1329 params[3] = FLOAT_TO_INT(b[3]);
1332 case GL_TEXTURE_RESIDENT:
1335 if (ctx->Driver.IsTextureResident)
1336 resident = ctx->Driver.IsTextureResident(ctx, obj);
1339 *params = (GLint) resident;
1342 case GL_TEXTURE_PRIORITY:
1343 *params = FLOAT_TO_INT(obj->Priority);
1345 case GL_TEXTURE_MIN_LOD:
1346 *params = (GLint) obj->Sampler.MinLod;
1348 case GL_TEXTURE_MAX_LOD:
1349 *params = (GLint) obj->Sampler.MaxLod;
1351 case GL_TEXTURE_BASE_LEVEL:
1352 *params = obj->BaseLevel;
1354 case GL_TEXTURE_MAX_LEVEL:
1355 *params = obj->MaxLevel;
1357 case GL_TEXTURE_MAX_ANISOTROPY_EXT:
1358 if (ctx->Extensions.EXT_texture_filter_anisotropic) {
1359 *params = (GLint) obj->Sampler.MaxAnisotropy;
1365 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
1366 if (ctx->Extensions.ARB_shadow_ambient) {
1367 *params = (GLint) FLOAT_TO_INT(obj->Sampler.CompareFailValue);
1373 case GL_GENERATE_MIPMAP_SGIS:
1374 *params = (GLint) obj->GenerateMipmap;
1376 case GL_TEXTURE_COMPARE_MODE_ARB:
1377 if (ctx->Extensions.ARB_shadow) {
1378 *params = (GLint) obj->Sampler.CompareMode;
1384 case GL_TEXTURE_COMPARE_FUNC_ARB:
1385 if (ctx->Extensions.ARB_shadow) {
1386 *params = (GLint) obj->Sampler.CompareFunc;
1392 case GL_DEPTH_TEXTURE_MODE_ARB:
1393 if (ctx->Extensions.ARB_depth_texture) {
1394 *params = (GLint) obj->Sampler.DepthMode;
1400 case GL_TEXTURE_LOD_BIAS:
1401 if (ctx->Extensions.EXT_texture_lod_bias) {
1402 *params = (GLint) obj->Sampler.LodBias;
1408 #if FEATURE_OES_draw_texture
1409 case GL_TEXTURE_CROP_RECT_OES:
1410 params[0] = obj->CropRect[0];
1411 params[1] = obj->CropRect[1];
1412 params[2] = obj->CropRect[2];
1413 params[3] = obj->CropRect[3];
1416 case GL_TEXTURE_SWIZZLE_R_EXT:
1417 case GL_TEXTURE_SWIZZLE_G_EXT:
1418 case GL_TEXTURE_SWIZZLE_B_EXT:
1419 case GL_TEXTURE_SWIZZLE_A_EXT:
1420 if (ctx->Extensions.EXT_texture_swizzle) {
1421 GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;
1422 *params = obj->Swizzle[comp];
1429 case GL_TEXTURE_SWIZZLE_RGBA_EXT:
1430 if (ctx->Extensions.EXT_texture_swizzle) {
1431 COPY_4V(params, obj->Swizzle);
1438 case GL_TEXTURE_CUBE_MAP_SEAMLESS:
1439 if (ctx->Extensions.AMD_seamless_cubemap_per_texture) {
1440 *params = (GLint) obj->Sampler.CubeMapSeamless;
1448 ; /* silence warnings */
1452 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname=0x%x)",
1455 _mesa_unlock_texture(ctx, obj);
1459 /** New in GL 3.0 */
1461 _mesa_GetTexParameterIiv(GLenum target, GLenum pname, GLint *params)
1463 struct gl_texture_object *texObj;
1464 GET_CURRENT_CONTEXT(ctx);
1465 ASSERT_OUTSIDE_BEGIN_END(ctx);
1467 texObj = get_texobj(ctx, target, GL_TRUE);
1470 case GL_TEXTURE_BORDER_COLOR:
1471 COPY_4V(params, texObj->Sampler.BorderColor.i);
1474 _mesa_GetTexParameteriv(target, pname, params);
1479 /** New in GL 3.0 */
1481 _mesa_GetTexParameterIuiv(GLenum target, GLenum pname, GLuint *params)
1483 struct gl_texture_object *texObj;
1484 GET_CURRENT_CONTEXT(ctx);
1485 ASSERT_OUTSIDE_BEGIN_END(ctx);
1487 texObj = get_texobj(ctx, target, GL_TRUE);
1490 case GL_TEXTURE_BORDER_COLOR:
1491 COPY_4V(params, texObj->Sampler.BorderColor.i);
1496 _mesa_GetTexParameteriv(target, pname, ip);
1498 if (pname == GL_TEXTURE_SWIZZLE_RGBA_EXT ||
1499 pname == GL_TEXTURE_CROP_RECT_OES) {