2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 * Texture image-related functions.
33 #include "bufferobj.h"
37 #include "framebuffer.h"
42 #include "mfeatures.h"
44 #include "texcompress.h"
50 #include "glformats.h"
53 /* Inexplicably, GL_HALF_FLOAT_OES has a different value than GL_HALF_FLOAT.
55 #ifndef GL_HALF_FLOAT_OES
56 #define GL_HALF_FLOAT_OES 0x8D61
60 * State changes which we care about for glCopyTex[Sub]Image() calls.
61 * In particular, we care about pixel transfer state and buffer state
62 * (such as glReadBuffer to make sure we read from the right renderbuffer).
64 #define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
69 * Return the simple base format for a given internal texture format.
70 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
72 * \param ctx GL context.
73 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
75 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
76 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
78 * This is the format which is used during texture application (i.e. the
79 * texture format and env mode determine the arithmetic used.
82 _mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat )
84 switch (internalFormat) {
99 case GL_LUMINANCE_ALPHA:
100 case GL_LUMINANCE4_ALPHA4:
101 case GL_LUMINANCE6_ALPHA2:
102 case GL_LUMINANCE8_ALPHA8:
103 case GL_LUMINANCE12_ALPHA4:
104 case GL_LUMINANCE12_ALPHA12:
105 case GL_LUMINANCE16_ALPHA16:
106 return GL_LUMINANCE_ALPHA;
137 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
139 if (_mesa_is_gles(ctx)) {
140 switch (internalFormat) {
148 if (ctx->Extensions.ARB_ES2_compatibility) {
149 switch (internalFormat) {
157 if (ctx->Extensions.ARB_depth_texture) {
158 switch (internalFormat) {
159 case GL_DEPTH_COMPONENT:
160 case GL_DEPTH_COMPONENT16:
161 case GL_DEPTH_COMPONENT24:
162 case GL_DEPTH_COMPONENT32:
163 return GL_DEPTH_COMPONENT;
169 switch (internalFormat) {
170 case GL_COMPRESSED_ALPHA:
172 case GL_COMPRESSED_LUMINANCE:
174 case GL_COMPRESSED_LUMINANCE_ALPHA:
175 return GL_LUMINANCE_ALPHA;
176 case GL_COMPRESSED_INTENSITY:
178 case GL_COMPRESSED_RGB:
180 case GL_COMPRESSED_RGBA:
186 if (ctx->Extensions.TDFX_texture_compression_FXT1) {
187 switch (internalFormat) {
188 case GL_COMPRESSED_RGB_FXT1_3DFX:
190 case GL_COMPRESSED_RGBA_FXT1_3DFX:
197 if (ctx->Extensions.EXT_texture_compression_s3tc) {
198 switch (internalFormat) {
199 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
201 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
202 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
203 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
210 if (ctx->Extensions.S3_s3tc) {
211 switch (internalFormat) {
223 if (ctx->Extensions.MESA_ycbcr_texture) {
224 if (internalFormat == GL_YCBCR_MESA)
225 return GL_YCBCR_MESA;
228 if (ctx->Extensions.ARB_texture_float) {
229 switch (internalFormat) {
230 case GL_ALPHA16F_ARB:
231 case GL_ALPHA32F_ARB:
239 case GL_INTENSITY16F_ARB:
240 case GL_INTENSITY32F_ARB:
242 case GL_LUMINANCE16F_ARB:
243 case GL_LUMINANCE32F_ARB:
245 case GL_LUMINANCE_ALPHA16F_ARB:
246 case GL_LUMINANCE_ALPHA32F_ARB:
247 return GL_LUMINANCE_ALPHA;
253 if (ctx->Extensions.ATI_envmap_bumpmap) {
254 switch (internalFormat) {
263 if (ctx->Extensions.EXT_texture_snorm) {
264 switch (internalFormat) {
279 case GL_RGBA16_SNORM:
282 case GL_ALPHA8_SNORM:
283 case GL_ALPHA16_SNORM:
285 case GL_LUMINANCE_SNORM:
286 case GL_LUMINANCE8_SNORM:
287 case GL_LUMINANCE16_SNORM:
289 case GL_LUMINANCE_ALPHA_SNORM:
290 case GL_LUMINANCE8_ALPHA8_SNORM:
291 case GL_LUMINANCE16_ALPHA16_SNORM:
292 return GL_LUMINANCE_ALPHA;
293 case GL_INTENSITY_SNORM:
294 case GL_INTENSITY8_SNORM:
295 case GL_INTENSITY16_SNORM:
302 if (ctx->Extensions.EXT_packed_depth_stencil) {
303 switch (internalFormat) {
304 case GL_DEPTH_STENCIL_EXT:
305 case GL_DEPTH24_STENCIL8_EXT:
306 return GL_DEPTH_STENCIL_EXT;
312 #if FEATURE_EXT_texture_sRGB
313 if (ctx->Extensions.EXT_texture_sRGB) {
314 switch (internalFormat) {
317 case GL_COMPRESSED_SRGB_EXT:
318 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
320 case GL_SRGB_ALPHA_EXT:
321 case GL_SRGB8_ALPHA8_EXT:
322 case GL_COMPRESSED_SRGB_ALPHA_EXT:
323 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
324 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
325 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
327 case GL_SLUMINANCE_ALPHA_EXT:
328 case GL_SLUMINANCE8_ALPHA8_EXT:
329 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
330 return GL_LUMINANCE_ALPHA;
331 case GL_SLUMINANCE_EXT:
332 case GL_SLUMINANCE8_EXT:
333 case GL_COMPRESSED_SLUMINANCE_EXT:
339 #endif /* FEATURE_EXT_texture_sRGB */
341 if (ctx->Version >= 30 ||
342 ctx->Extensions.EXT_texture_integer) {
343 switch (internalFormat) {
345 case GL_RGBA16UI_EXT:
346 case GL_RGBA32UI_EXT:
362 if (ctx->Extensions.EXT_texture_integer) {
363 switch (internalFormat) {
364 case GL_ALPHA8UI_EXT:
365 case GL_ALPHA16UI_EXT:
366 case GL_ALPHA32UI_EXT:
368 case GL_ALPHA16I_EXT:
369 case GL_ALPHA32I_EXT:
371 case GL_INTENSITY8UI_EXT:
372 case GL_INTENSITY16UI_EXT:
373 case GL_INTENSITY32UI_EXT:
374 case GL_INTENSITY8I_EXT:
375 case GL_INTENSITY16I_EXT:
376 case GL_INTENSITY32I_EXT:
378 case GL_LUMINANCE8UI_EXT:
379 case GL_LUMINANCE16UI_EXT:
380 case GL_LUMINANCE32UI_EXT:
381 case GL_LUMINANCE8I_EXT:
382 case GL_LUMINANCE16I_EXT:
383 case GL_LUMINANCE32I_EXT:
385 case GL_LUMINANCE_ALPHA8UI_EXT:
386 case GL_LUMINANCE_ALPHA16UI_EXT:
387 case GL_LUMINANCE_ALPHA32UI_EXT:
388 case GL_LUMINANCE_ALPHA8I_EXT:
389 case GL_LUMINANCE_ALPHA16I_EXT:
390 case GL_LUMINANCE_ALPHA32I_EXT:
391 return GL_LUMINANCE_ALPHA;
397 if (ctx->Extensions.ARB_texture_rg) {
398 switch (internalFormat) {
400 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
402 if (!ctx->Extensions.ARB_half_float_pixel)
406 if (!ctx->Extensions.ARB_texture_float)
415 if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer)
421 case GL_COMPRESSED_RED:
425 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
427 if (!ctx->Extensions.ARB_half_float_pixel)
431 if (!ctx->Extensions.ARB_texture_float)
440 if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer)
446 case GL_COMPRESSED_RG:
453 if (ctx->Extensions.EXT_texture_shared_exponent) {
454 switch (internalFormat) {
462 if (ctx->Extensions.EXT_packed_float) {
463 switch (internalFormat) {
464 case GL_R11F_G11F_B10F_EXT:
471 if (ctx->Extensions.ARB_depth_buffer_float) {
472 switch (internalFormat) {
473 case GL_DEPTH_COMPONENT32F:
474 return GL_DEPTH_COMPONENT;
475 case GL_DEPTH32F_STENCIL8:
476 return GL_DEPTH_STENCIL;
482 if (ctx->Extensions.ARB_texture_compression_rgtc) {
483 switch (internalFormat) {
484 case GL_COMPRESSED_RED_RGTC1:
485 case GL_COMPRESSED_SIGNED_RED_RGTC1:
487 case GL_COMPRESSED_RG_RGTC2:
488 case GL_COMPRESSED_SIGNED_RG_RGTC2:
495 if (ctx->Extensions.EXT_texture_compression_latc) {
496 switch (internalFormat) {
497 case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
498 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
500 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
501 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
502 return GL_LUMINANCE_ALPHA;
508 if (ctx->Extensions.ATI_texture_compression_3dc) {
509 switch (internalFormat) {
510 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
511 return GL_LUMINANCE_ALPHA;
517 if (ctx->Extensions.OES_compressed_ETC1_RGB8_texture) {
518 switch (internalFormat) {
519 case GL_ETC1_RGB8_OES:
526 if (ctx->API == API_OPENGLES) {
527 switch (internalFormat) {
528 case GL_PALETTE4_RGB8_OES:
529 case GL_PALETTE4_R5_G6_B5_OES:
530 case GL_PALETTE8_RGB8_OES:
531 case GL_PALETTE8_R5_G6_B5_OES:
533 case GL_PALETTE4_RGBA8_OES:
534 case GL_PALETTE8_RGB5_A1_OES:
535 case GL_PALETTE4_RGBA4_OES:
536 case GL_PALETTE4_RGB5_A1_OES:
537 case GL_PALETTE8_RGBA8_OES:
538 case GL_PALETTE8_RGBA4_OES:
545 return -1; /* error */
550 * For cube map faces, return a face index in [0,5].
551 * For other targets return 0;
554 _mesa_tex_target_to_face(GLenum target)
556 if (_mesa_is_cube_face(target))
557 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
565 * Install gl_texture_image in a gl_texture_object according to the target
566 * and level parameters.
568 * \param tObj texture object.
569 * \param target texture target.
570 * \param level image level.
571 * \param texImage texture image.
574 set_tex_image(struct gl_texture_object *tObj,
575 GLenum target, GLint level,
576 struct gl_texture_image *texImage)
578 const GLuint face = _mesa_tex_target_to_face(target);
582 if (target == GL_TEXTURE_RECTANGLE_NV || target == GL_TEXTURE_EXTERNAL_OES)
585 tObj->Image[face][level] = texImage;
587 /* Set the 'back' pointer */
588 texImage->TexObject = tObj;
589 texImage->Level = level;
590 texImage->Face = face;
595 * Allocate a texture image structure.
597 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
600 * \return a pointer to gl_texture_image struct with all fields initialized to
603 struct gl_texture_image *
604 _mesa_new_texture_image( struct gl_context *ctx )
607 return CALLOC_STRUCT(gl_texture_image);
612 * Free a gl_texture_image and associated data.
613 * This function is a fallback called via ctx->Driver.DeleteTextureImage().
615 * \param texImage texture image.
617 * Free the texture image structure and the associated image data.
620 _mesa_delete_texture_image(struct gl_context *ctx,
621 struct gl_texture_image *texImage)
623 /* Free texImage->Data and/or any other driver-specific texture
626 ASSERT(ctx->Driver.FreeTextureImageBuffer);
627 ctx->Driver.FreeTextureImageBuffer( ctx, texImage );
633 * Test if a target is a proxy target.
635 * \param target texture target.
637 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
640 _mesa_is_proxy_texture(GLenum target)
643 * NUM_TEXTURE_TARGETS should match number of terms below, except there's no
644 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
646 assert(NUM_TEXTURE_TARGETS == 7 + 2);
648 return (target == GL_PROXY_TEXTURE_1D ||
649 target == GL_PROXY_TEXTURE_2D ||
650 target == GL_PROXY_TEXTURE_3D ||
651 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
652 target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
653 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
654 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT);
659 * Return the proxy target which corresponds to the given texture target
662 get_proxy_target(GLenum target)
666 case GL_PROXY_TEXTURE_1D:
667 return GL_PROXY_TEXTURE_1D;
669 case GL_PROXY_TEXTURE_2D:
670 return GL_PROXY_TEXTURE_2D;
672 case GL_PROXY_TEXTURE_3D:
673 return GL_PROXY_TEXTURE_3D;
674 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
675 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
676 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
677 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
678 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
679 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
680 case GL_TEXTURE_CUBE_MAP_ARB:
681 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
682 return GL_PROXY_TEXTURE_CUBE_MAP_ARB;
683 case GL_TEXTURE_RECTANGLE_NV:
684 case GL_PROXY_TEXTURE_RECTANGLE_NV:
685 return GL_PROXY_TEXTURE_RECTANGLE_NV;
686 case GL_TEXTURE_1D_ARRAY_EXT:
687 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
688 return GL_PROXY_TEXTURE_1D_ARRAY_EXT;
689 case GL_TEXTURE_2D_ARRAY_EXT:
690 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
691 return GL_PROXY_TEXTURE_2D_ARRAY_EXT;
693 _mesa_problem(NULL, "unexpected target in get_proxy_target()");
700 * Get the texture object that corresponds to the target of the given
701 * texture unit. The target should have already been checked for validity.
703 * \param ctx GL context.
704 * \param texUnit texture unit.
705 * \param target texture target.
707 * \return pointer to the texture object on success, or NULL on failure.
709 struct gl_texture_object *
710 _mesa_select_tex_object(struct gl_context *ctx,
711 const struct gl_texture_unit *texUnit,
714 const GLboolean arrayTex = (ctx->Extensions.MESA_texture_array ||
715 ctx->Extensions.EXT_texture_array);
719 return texUnit->CurrentTex[TEXTURE_1D_INDEX];
720 case GL_PROXY_TEXTURE_1D:
721 return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
723 return texUnit->CurrentTex[TEXTURE_2D_INDEX];
724 case GL_PROXY_TEXTURE_2D:
725 return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
727 return texUnit->CurrentTex[TEXTURE_3D_INDEX];
728 case GL_PROXY_TEXTURE_3D:
729 return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
730 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
731 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
732 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
733 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
734 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
735 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
736 case GL_TEXTURE_CUBE_MAP_ARB:
737 return ctx->Extensions.ARB_texture_cube_map
738 ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL;
739 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
740 return ctx->Extensions.ARB_texture_cube_map
741 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL;
742 case GL_TEXTURE_RECTANGLE_NV:
743 return ctx->Extensions.NV_texture_rectangle
744 ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL;
745 case GL_PROXY_TEXTURE_RECTANGLE_NV:
746 return ctx->Extensions.NV_texture_rectangle
747 ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL;
748 case GL_TEXTURE_1D_ARRAY_EXT:
749 return arrayTex ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
750 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
751 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
752 case GL_TEXTURE_2D_ARRAY_EXT:
753 return arrayTex ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
754 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
755 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
756 case GL_TEXTURE_BUFFER:
757 return ctx->Extensions.ARB_texture_buffer_object
758 ? texUnit->CurrentTex[TEXTURE_BUFFER_INDEX] : NULL;
759 case GL_TEXTURE_EXTERNAL_OES:
760 return ctx->Extensions.OES_EGL_image_external
761 ? texUnit->CurrentTex[TEXTURE_EXTERNAL_INDEX] : NULL;
763 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
770 * Return pointer to texture object for given target on current texture unit.
772 struct gl_texture_object *
773 _mesa_get_current_tex_object(struct gl_context *ctx, GLenum target)
775 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
776 return _mesa_select_tex_object(ctx, texUnit, target);
781 * Get a texture image pointer from a texture object, given a texture
782 * target and mipmap level. The target and level parameters should
783 * have already been error-checked.
785 * \param ctx GL context.
786 * \param texObj texture unit.
787 * \param target texture target.
788 * \param level image level.
790 * \return pointer to the texture image structure, or NULL on failure.
792 struct gl_texture_image *
793 _mesa_select_tex_image(struct gl_context *ctx,
794 const struct gl_texture_object *texObj,
795 GLenum target, GLint level)
797 const GLuint face = _mesa_tex_target_to_face(target);
801 ASSERT(level < MAX_TEXTURE_LEVELS);
803 return texObj->Image[face][level];
808 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
809 * it and install it. Only return NULL if passed a bad parameter or run
812 struct gl_texture_image *
813 _mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj,
814 GLenum target, GLint level)
816 struct gl_texture_image *texImage;
821 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
823 texImage = ctx->Driver.NewTextureImage(ctx);
825 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
829 set_tex_image(texObj, target, level, texImage);
837 * Return pointer to the specified proxy texture image.
838 * Note that proxy textures are per-context, not per-texture unit.
839 * \return pointer to texture image or NULL if invalid target, invalid
840 * level, or out of memory.
842 static struct gl_texture_image *
843 get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level)
845 struct gl_texture_image *texImage;
852 case GL_PROXY_TEXTURE_1D:
853 if (level >= ctx->Const.MaxTextureLevels)
855 texIndex = TEXTURE_1D_INDEX;
857 case GL_PROXY_TEXTURE_2D:
858 if (level >= ctx->Const.MaxTextureLevels)
860 texIndex = TEXTURE_2D_INDEX;
862 case GL_PROXY_TEXTURE_3D:
863 if (level >= ctx->Const.Max3DTextureLevels)
865 texIndex = TEXTURE_3D_INDEX;
867 case GL_PROXY_TEXTURE_CUBE_MAP:
868 if (level >= ctx->Const.MaxCubeTextureLevels)
870 texIndex = TEXTURE_CUBE_INDEX;
872 case GL_PROXY_TEXTURE_RECTANGLE_NV:
875 texIndex = TEXTURE_RECT_INDEX;
877 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
878 if (level >= ctx->Const.MaxTextureLevels)
880 texIndex = TEXTURE_1D_ARRAY_INDEX;
882 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
883 if (level >= ctx->Const.MaxTextureLevels)
885 texIndex = TEXTURE_2D_ARRAY_INDEX;
891 texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level];
893 texImage = ctx->Driver.NewTextureImage(ctx);
895 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
898 ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage;
899 /* Set the 'back' pointer */
900 texImage->TexObject = ctx->Texture.ProxyTex[texIndex];
907 * Get the maximum number of allowed mipmap levels.
909 * \param ctx GL context.
910 * \param target texture target.
912 * \return the maximum number of allowed mipmap levels for the given
913 * texture target, or zero if passed a bad target.
918 _mesa_max_texture_levels(struct gl_context *ctx, GLenum target)
922 case GL_PROXY_TEXTURE_1D:
924 case GL_PROXY_TEXTURE_2D:
925 return ctx->Const.MaxTextureLevels;
927 case GL_PROXY_TEXTURE_3D:
928 return ctx->Const.Max3DTextureLevels;
929 case GL_TEXTURE_CUBE_MAP:
930 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
931 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
932 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
933 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
934 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
935 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
936 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
937 return ctx->Extensions.ARB_texture_cube_map
938 ? ctx->Const.MaxCubeTextureLevels : 0;
939 case GL_TEXTURE_RECTANGLE_NV:
940 case GL_PROXY_TEXTURE_RECTANGLE_NV:
941 return ctx->Extensions.NV_texture_rectangle ? 1 : 0;
942 case GL_TEXTURE_1D_ARRAY_EXT:
943 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
944 case GL_TEXTURE_2D_ARRAY_EXT:
945 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
946 return (ctx->Extensions.MESA_texture_array ||
947 ctx->Extensions.EXT_texture_array)
948 ? ctx->Const.MaxTextureLevels : 0;
949 case GL_TEXTURE_BUFFER:
950 return _mesa_is_desktop_gl(ctx) &&
951 (ctx->Extensions.ARB_texture_buffer_object ||
952 (ctx->Version >= 31)) ? 1 : 0;
953 case GL_TEXTURE_EXTERNAL_OES:
956 return 0; /* bad target */
962 * Return number of dimensions per mipmap level for the given texture target.
965 _mesa_get_texture_dimensions(GLenum target)
969 case GL_PROXY_TEXTURE_1D:
972 case GL_TEXTURE_RECTANGLE:
973 case GL_TEXTURE_CUBE_MAP:
974 case GL_PROXY_TEXTURE_2D:
975 case GL_PROXY_TEXTURE_RECTANGLE:
976 case GL_PROXY_TEXTURE_CUBE_MAP:
977 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
978 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
979 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
980 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
981 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
982 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
983 case GL_TEXTURE_1D_ARRAY:
984 case GL_PROXY_TEXTURE_1D_ARRAY:
985 case GL_TEXTURE_EXTERNAL_OES:
988 case GL_PROXY_TEXTURE_3D:
989 case GL_TEXTURE_2D_ARRAY:
990 case GL_PROXY_TEXTURE_2D_ARRAY:
992 case GL_TEXTURE_BUFFER:
995 _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()",
1004 #if 000 /* not used anymore */
1006 * glTexImage[123]D can accept a NULL image pointer. In this case we
1007 * create a texture image with unspecified image contents per the OpenGL
1011 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
1013 const GLint components = _mesa_components_in_format(format);
1014 const GLint numPixels = width * height * depth;
1015 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
1019 * Let's see if anyone finds this. If glTexImage2D() is called with
1020 * a NULL image pointer then load the texture image with something
1021 * interesting instead of leaving it indeterminate.
1024 static const char message[8][32] = {
1025 " X X XXXXX XXX X ",
1026 " XX XX X X X X X ",
1028 " X X XXXX XXX XXXXX ",
1031 " X X XXXXX XXX X X ",
1035 GLubyte *imgPtr = data;
1037 for (h = 0; h < depth; h++) {
1038 for (i = 0; i < height; i++) {
1039 GLint srcRow = 7 - (i % 8);
1040 for (j = 0; j < width; j++) {
1041 GLint srcCol = j % 32;
1042 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
1043 for (k = 0; k < components; k++) {
1059 * Set the size and format-related fields of a gl_texture_image struct
1060 * to zero. This is used when a proxy texture test fails.
1063 clear_teximage_fields(struct gl_texture_image *img)
1066 img->_BaseFormat = 0;
1067 img->InternalFormat = 0;
1076 img->HeightLog2 = 0;
1078 img->TexFormat = MESA_FORMAT_NONE;
1083 * Initialize basic fields of the gl_texture_image struct.
1085 * \param ctx GL context.
1086 * \param img texture image structure to be initialized.
1087 * \param width image width.
1088 * \param height image height.
1089 * \param depth image depth.
1090 * \param border image border.
1091 * \param internalFormat internal format.
1092 * \param format the actual hardware format (one of MESA_FORMAT_*)
1094 * Fills in the fields of \p img with the given information.
1095 * Note: width, height and depth include the border.
1098 _mesa_init_teximage_fields(struct gl_context *ctx,
1099 struct gl_texture_image *img,
1100 GLsizei width, GLsizei height, GLsizei depth,
1101 GLint border, GLenum internalFormat,
1107 ASSERT(height >= 0);
1110 target = img->TexObject->Target;
1111 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
1112 ASSERT(img->_BaseFormat > 0);
1113 img->InternalFormat = internalFormat;
1114 img->Border = border;
1116 img->Height = height;
1119 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
1120 img->WidthLog2 = _mesa_logbase2(img->Width2);
1124 case GL_TEXTURE_BUFFER:
1125 case GL_PROXY_TEXTURE_1D:
1130 img->HeightLog2 = 0;
1137 case GL_TEXTURE_1D_ARRAY:
1138 case GL_PROXY_TEXTURE_1D_ARRAY:
1139 img->Height2 = height; /* no border */
1140 img->HeightLog2 = 0; /* not used */
1148 case GL_TEXTURE_RECTANGLE:
1149 case GL_TEXTURE_CUBE_MAP:
1150 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1151 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1152 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1153 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1154 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1155 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1156 case GL_TEXTURE_EXTERNAL_OES:
1157 case GL_PROXY_TEXTURE_2D:
1158 case GL_PROXY_TEXTURE_RECTANGLE:
1159 case GL_PROXY_TEXTURE_CUBE_MAP:
1160 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1161 img->HeightLog2 = _mesa_logbase2(img->Height2);
1168 case GL_TEXTURE_2D_ARRAY:
1169 case GL_PROXY_TEXTURE_2D_ARRAY:
1170 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1171 img->HeightLog2 = _mesa_logbase2(img->Height2);
1172 img->Depth2 = depth; /* no border */
1173 img->DepthLog2 = 0; /* not used */
1176 case GL_PROXY_TEXTURE_3D:
1177 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1178 img->HeightLog2 = _mesa_logbase2(img->Height2);
1179 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
1180 img->DepthLog2 = _mesa_logbase2(img->Depth2);
1183 _mesa_problem(NULL, "invalid target 0x%x in _mesa_init_teximage_fields()",
1187 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
1188 img->TexFormat = format;
1193 * Free and clear fields of the gl_texture_image struct.
1195 * \param ctx GL context.
1196 * \param texImage texture image structure to be cleared.
1198 * After the call, \p texImage will have no data associated with it. Its
1199 * fields are cleared so that its parent object will test incomplete.
1202 _mesa_clear_texture_image(struct gl_context *ctx,
1203 struct gl_texture_image *texImage)
1205 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
1206 clear_teximage_fields(texImage);
1211 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1212 * level, width, height and depth against the ctx->Const limits for textures.
1214 * A hardware driver might override this function if, for example, the
1215 * max 3D texture size is 512x512x64 (i.e. not a cube).
1217 * Note that width, height, depth == 0 is not an error. However, a
1218 * texture with zero width/height/depth will be considered "incomplete"
1219 * and texturing will effectively be disabled.
1221 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1222 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1223 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1224 * \param level as passed to glTexImage
1225 * \param internalFormat as passed to glTexImage
1226 * \param format as passed to glTexImage
1227 * \param type as passed to glTexImage
1228 * \param width as passed to glTexImage
1229 * \param height as passed to glTexImage
1230 * \param depth as passed to glTexImage
1231 * \param border as passed to glTexImage
1232 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1235 _mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
1236 GLint internalFormat, GLenum format, GLenum type,
1237 GLint width, GLint height, GLint depth, GLint border)
1241 (void) internalFormat;
1246 case GL_PROXY_TEXTURE_1D:
1247 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1248 if (width < 2 * border || width > 2 * border + maxSize)
1250 if (level >= ctx->Const.MaxTextureLevels)
1252 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1253 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1258 case GL_PROXY_TEXTURE_2D:
1259 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1260 if (width < 2 * border || width > 2 * border + maxSize)
1262 if (height < 2 * border || height > 2 * border + maxSize)
1264 if (level >= ctx->Const.MaxTextureLevels)
1266 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1267 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1269 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1274 case GL_PROXY_TEXTURE_3D:
1275 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1276 if (width < 2 * border || width > 2 * border + maxSize)
1278 if (height < 2 * border || height > 2 * border + maxSize)
1280 if (depth < 2 * border || depth > 2 * border + maxSize)
1282 if (level >= ctx->Const.Max3DTextureLevels)
1284 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1285 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1287 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1289 if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border))
1294 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1295 maxSize = ctx->Const.MaxTextureRectSize;
1296 if (width < 0 || width > maxSize)
1298 if (height < 0 || height > maxSize)
1304 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1305 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1306 if (width < 2 * border || width > 2 * border + maxSize)
1308 if (height < 2 * border || height > 2 * border + maxSize)
1310 if (level >= ctx->Const.MaxCubeTextureLevels)
1312 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1313 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1315 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1320 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1321 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1322 if (width < 2 * border || width > 2 * border + maxSize)
1324 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers)
1326 if (level >= ctx->Const.MaxTextureLevels)
1328 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1329 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1334 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1335 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1336 if (width < 2 * border || width > 2 * border + maxSize)
1338 if (height < 2 * border || height > 2 * border + maxSize)
1340 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers)
1342 if (level >= ctx->Const.MaxTextureLevels)
1344 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1345 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1347 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1353 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
1360 * Check if the memory used by the texture would exceed the driver's limit.
1361 * This lets us support a max 3D texture size of 8K (for example) but
1362 * prevents allocating a full 8K x 8K x 8K texture.
1363 * XXX this could be rolled into the proxy texture size test (above) but
1364 * we don't have the actual texture internal format at that point.
1367 legal_texture_size(struct gl_context *ctx, gl_format format,
1368 GLint width, GLint height, GLint depth)
1370 uint64_t bytes = _mesa_format_image_size64(format, width, height, depth);
1371 uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */
1372 return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes;
1377 * Return true if the format is only valid for glCompressedTexImage.
1380 compressedteximage_only_format(const struct gl_context *ctx, GLenum format)
1383 case GL_ETC1_RGB8_OES:
1384 case GL_PALETTE4_RGB8_OES:
1385 case GL_PALETTE4_RGBA8_OES:
1386 case GL_PALETTE4_R5_G6_B5_OES:
1387 case GL_PALETTE4_RGBA4_OES:
1388 case GL_PALETTE4_RGB5_A1_OES:
1389 case GL_PALETTE8_RGB8_OES:
1390 case GL_PALETTE8_RGBA8_OES:
1391 case GL_PALETTE8_R5_G6_B5_OES:
1392 case GL_PALETTE8_RGBA4_OES:
1393 case GL_PALETTE8_RGB5_A1_OES:
1402 * Helper function to determine whether a target and specific compression
1403 * format are supported.
1406 target_can_be_compressed(const struct gl_context *ctx, GLenum target,
1409 (void) intFormat; /* not used yet */
1413 case GL_PROXY_TEXTURE_2D:
1414 return GL_TRUE; /* true for any compressed format so far */
1415 case GL_PROXY_TEXTURE_CUBE_MAP:
1416 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1417 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1418 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1419 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1420 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1421 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1422 return ctx->Extensions.ARB_texture_cube_map;
1423 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1424 case GL_TEXTURE_2D_ARRAY_EXT:
1425 return (ctx->Extensions.MESA_texture_array ||
1426 ctx->Extensions.EXT_texture_array);
1434 * Check if the given texture target value is legal for a
1435 * glTexImage1/2/3D call.
1438 legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target)
1444 case GL_PROXY_TEXTURE_1D:
1445 return _mesa_is_desktop_gl(ctx);
1453 case GL_PROXY_TEXTURE_2D:
1454 return _mesa_is_desktop_gl(ctx);
1455 case GL_PROXY_TEXTURE_CUBE_MAP:
1456 return _mesa_is_desktop_gl(ctx)
1457 && ctx->Extensions.ARB_texture_cube_map;
1458 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1459 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1460 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1461 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1462 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1463 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1464 return ctx->Extensions.ARB_texture_cube_map;
1465 case GL_TEXTURE_RECTANGLE_NV:
1466 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1467 return _mesa_is_desktop_gl(ctx)
1468 && ctx->Extensions.NV_texture_rectangle;
1469 case GL_TEXTURE_1D_ARRAY_EXT:
1470 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1471 return _mesa_is_desktop_gl(ctx)
1472 && (ctx->Extensions.MESA_texture_array ||
1473 ctx->Extensions.EXT_texture_array);
1481 case GL_PROXY_TEXTURE_3D:
1482 return _mesa_is_desktop_gl(ctx);
1483 case GL_TEXTURE_2D_ARRAY_EXT:
1484 return (_mesa_is_desktop_gl(ctx)
1485 && (ctx->Extensions.MESA_texture_array ||
1486 ctx->Extensions.EXT_texture_array))
1487 || _mesa_is_gles3(ctx);
1488 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1489 return _mesa_is_desktop_gl(ctx)
1490 && (ctx->Extensions.MESA_texture_array ||
1491 ctx->Extensions.EXT_texture_array);
1496 _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims);
1503 * Check if the given texture target value is legal for a
1504 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1505 * The difference compared to legal_teximage_target() above is that
1506 * proxy targets are not supported.
1509 legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target)
1513 return _mesa_is_desktop_gl(ctx) && target == GL_TEXTURE_1D;
1518 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1519 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1520 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1521 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1522 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1523 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1524 return ctx->Extensions.ARB_texture_cube_map;
1525 case GL_TEXTURE_RECTANGLE_NV:
1526 return _mesa_is_desktop_gl(ctx)
1527 && ctx->Extensions.NV_texture_rectangle;
1528 case GL_TEXTURE_1D_ARRAY_EXT:
1529 return _mesa_is_desktop_gl(ctx)
1530 && (ctx->Extensions.MESA_texture_array ||
1531 ctx->Extensions.EXT_texture_array);
1539 case GL_TEXTURE_2D_ARRAY_EXT:
1540 return (_mesa_is_desktop_gl(ctx)
1541 && (ctx->Extensions.MESA_texture_array ||
1542 ctx->Extensions.EXT_texture_array))
1543 || _mesa_is_gles3(ctx);
1548 _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()",
1556 * Helper function to determine if a texture object is mutable (in terms
1557 * of GL_ARB_texture_storage).
1560 mutable_tex_object(struct gl_context *ctx, GLenum target)
1562 if (ctx->Extensions.ARB_texture_storage) {
1563 struct gl_texture_object *texObj =
1564 _mesa_get_current_tex_object(ctx, target);
1565 return !texObj->Immutable;
1572 _mesa_es_error_check_format_and_type(GLenum format, GLenum type,
1573 unsigned dimensions)
1575 bool type_valid = true;
1580 case GL_LUMINANCE_ALPHA:
1581 type_valid = (type == GL_UNSIGNED_BYTE
1583 || type == GL_HALF_FLOAT_OES);
1587 type_valid = (type == GL_UNSIGNED_BYTE
1588 || type == GL_UNSIGNED_SHORT_5_6_5
1590 || type == GL_HALF_FLOAT_OES);
1594 type_valid = (type == GL_UNSIGNED_BYTE
1595 || type == GL_UNSIGNED_SHORT_4_4_4_4
1596 || type == GL_UNSIGNED_SHORT_5_5_5_1
1598 || type == GL_HALF_FLOAT_OES
1599 || type == GL_UNSIGNED_INT_2_10_10_10_REV);
1602 case GL_DEPTH_COMPONENT:
1603 /* This format is filtered against invalid dimensionalities elsewhere.
1605 type_valid = (type == GL_UNSIGNED_SHORT
1606 || type == GL_UNSIGNED_INT);
1609 case GL_DEPTH_STENCIL:
1610 /* This format is filtered against invalid dimensionalities elsewhere.
1612 type_valid = (type == GL_UNSIGNED_INT_24_8);
1616 type_valid = (type == GL_UNSIGNED_BYTE);
1618 /* This feels like a bug in the EXT_texture_format_BGRA8888 spec, but
1619 * the format does not appear to be allowed for 3D textures in OpenGL
1622 if (dimensions != 2)
1623 return GL_INVALID_VALUE;
1628 return GL_INVALID_VALUE;
1631 return type_valid ? GL_NO_ERROR : GL_INVALID_OPERATION;
1637 * Special value returned by error some texture error checking functions when
1638 * an error is detected and the proxy texture image's width/height/depth/format
1639 * fields should be zeroed-out.
1641 #define PROXY_ERROR 2
1645 * Test the glTexImage[123]D() parameters for errors.
1647 * \param ctx GL context.
1648 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1649 * \param target texture target given by the user.
1650 * \param level image level given by the user.
1651 * \param internalFormat internal format given by the user.
1652 * \param format pixel data format given by the user.
1653 * \param type pixel data type given by the user.
1654 * \param width image width given by the user.
1655 * \param height image height given by the user.
1656 * \param depth image depth given by the user.
1657 * \param border image border given by the user.
1659 * \return PROXY_ERROR if there's an error that should zero-out the proxy image,
1660 * GL_TRUE if a regular GL error is found, or GL_FALSE if no error,
1662 * Verifies each of the parameters against the constants specified in
1663 * __struct gl_contextRec::Const and the supported extensions, and according
1664 * to the OpenGL specification.
1667 texture_error_check( struct gl_context *ctx,
1668 GLuint dimensions, GLenum target,
1669 GLint level, GLint internalFormat,
1670 GLenum format, GLenum type,
1671 GLint width, GLint height,
1672 GLint depth, GLint border )
1674 const GLenum proxyTarget = get_proxy_target(target);
1675 const GLboolean isProxy = target == proxyTarget;
1676 GLboolean sizeOK = GL_TRUE;
1677 GLboolean colorFormat;
1680 /* Even though there are no color-index textures, we still have to support
1681 * uploading color-index data and remapping it to RGB via the
1682 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1684 const GLboolean indexFormat = (format == GL_COLOR_INDEX);
1686 /* Note: for proxy textures, some error conditions immediately generate
1687 * a GL error in the usual way. But others do not generate a GL error.
1688 * Instead, they cause the width, height, depth, format fields of the
1689 * texture image to be zeroed-out. The GL spec seems to indicate that the
1690 * zero-out behaviour is only used in cases related to memory allocation.
1693 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1694 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1695 _mesa_error(ctx, GL_INVALID_VALUE,
1696 "glTexImage%dD(level=%d)", dimensions, level);
1701 if (border < 0 || border > 1 ||
1702 ((ctx->API != API_OPENGL ||
1703 target == GL_TEXTURE_RECTANGLE_NV ||
1704 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1705 _mesa_error(ctx, GL_INVALID_VALUE,
1706 "glTexImage%dD(border=%d)", dimensions, border);
1710 if (width < 0 || height < 0 || depth < 0) {
1711 _mesa_error(ctx, GL_INVALID_VALUE,
1712 "glTexImage%dD(width, height or depth < 0)", dimensions);
1716 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1717 * combinations of format, internalFormat, and type that can be used.
1718 * Formats and types that require additional extensions (e.g., GL_FLOAT
1719 * requires GL_OES_texture_float) are filtered elsewhere.
1721 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) {
1722 if (format != internalFormat) {
1723 _mesa_error(ctx, GL_INVALID_OPERATION,
1724 "glTexImage%dD(format = %s, internalFormat = %s)",
1726 _mesa_lookup_enum_by_nr(format),
1727 _mesa_lookup_enum_by_nr(internalFormat));
1731 err = _mesa_es_error_check_format_and_type(format, type, dimensions);
1732 if (err != GL_NO_ERROR) {
1733 _mesa_error(ctx, err,
1734 "glTexImage%dD(format = %s, type = %s)",
1736 _mesa_lookup_enum_by_nr(format),
1737 _mesa_lookup_enum_by_nr(type));
1742 /* Do this simple check before calling the TestProxyTexImage() function */
1743 if (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
1744 sizeOK = (width == height);
1748 * Use the proxy texture driver hook to see if the size/level/etc are
1751 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
1752 internalFormat, format,
1753 type, width, height,
1757 /* No GL error is recorded, but we need to zero-out the image dims */
1761 _mesa_error(ctx, GL_INVALID_VALUE,
1762 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1763 dimensions, level, width, height, depth);
1768 /* Check internalFormat */
1769 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1770 _mesa_error(ctx, GL_INVALID_VALUE,
1771 "glTexImage%dD(internalFormat=%s)",
1772 dimensions, _mesa_lookup_enum_by_nr(internalFormat));
1776 /* Check incoming image format and type */
1777 err = _mesa_error_check_format_and_type(ctx, format, type);
1778 if (err != GL_NO_ERROR) {
1779 _mesa_error(ctx, err,
1780 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1781 dimensions, format, type);
1785 /* make sure internal format and format basically agree */
1786 colorFormat = _mesa_is_color_format(format);
1787 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
1788 (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) ||
1789 (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) ||
1790 (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) ||
1791 (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) {
1792 _mesa_error(ctx, GL_INVALID_OPERATION,
1793 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1794 dimensions, internalFormat, format);
1798 /* additional checks for ycbcr textures */
1799 if (internalFormat == GL_YCBCR_MESA) {
1800 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1801 if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1802 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
1804 _mesa_snprintf(message, sizeof(message),
1805 "glTexImage%dD(format/type YCBCR mismatch)",
1807 _mesa_error(ctx, GL_INVALID_ENUM, "%s", message);
1808 return GL_TRUE; /* error */
1810 if (target != GL_TEXTURE_2D &&
1811 target != GL_PROXY_TEXTURE_2D &&
1812 target != GL_TEXTURE_RECTANGLE_NV &&
1813 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1814 _mesa_error(ctx, GL_INVALID_ENUM,
1815 "glTexImage%dD(bad target for YCbCr texture)",
1821 _mesa_snprintf(message, sizeof(message),
1822 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1823 dimensions, border);
1824 _mesa_error(ctx, GL_INVALID_VALUE, "%s", message);
1829 /* additional checks for depth textures */
1830 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
1831 /* Only 1D, 2D, rect, array and cube textures supported, not 3D
1832 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */
1833 if (target != GL_TEXTURE_1D &&
1834 target != GL_PROXY_TEXTURE_1D &&
1835 target != GL_TEXTURE_2D &&
1836 target != GL_PROXY_TEXTURE_2D &&
1837 target != GL_TEXTURE_1D_ARRAY &&
1838 target != GL_PROXY_TEXTURE_1D_ARRAY &&
1839 target != GL_TEXTURE_2D_ARRAY &&
1840 target != GL_PROXY_TEXTURE_2D_ARRAY &&
1841 target != GL_TEXTURE_RECTANGLE_ARB &&
1842 target != GL_PROXY_TEXTURE_RECTANGLE_ARB &&
1843 !((_mesa_is_cube_face(target) || target == GL_PROXY_TEXTURE_CUBE_MAP) &&
1844 (ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4))) {
1845 _mesa_error(ctx, GL_INVALID_ENUM,
1846 "glTexImage%dD(bad target for depth texture)",
1852 /* additional checks for compressed textures */
1853 if (_mesa_is_compressed_format(ctx, internalFormat)) {
1854 if (!target_can_be_compressed(ctx, target, internalFormat)) {
1855 _mesa_error(ctx, GL_INVALID_ENUM,
1856 "glTexImage%dD(target can't be compressed)", dimensions);
1859 if (compressedteximage_only_format(ctx, internalFormat)) {
1860 _mesa_error(ctx, GL_INVALID_OPERATION,
1861 "glTexImage%dD(no compression for format)", dimensions);
1865 _mesa_error(ctx, GL_INVALID_OPERATION,
1866 "glTexImage%dD(border!=0)", dimensions);
1871 /* additional checks for integer textures */
1872 if ((ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) &&
1873 (_mesa_is_enum_format_integer(format) !=
1874 _mesa_is_enum_format_integer(internalFormat))) {
1875 _mesa_error(ctx, GL_INVALID_OPERATION,
1876 "glTexImage%dD(integer/non-integer format mismatch)",
1881 if (!mutable_tex_object(ctx, target)) {
1882 _mesa_error(ctx, GL_INVALID_OPERATION,
1883 "glTexImage%dD(immutable texture)", dimensions);
1887 /* if we get here, the parameters are OK */
1893 * Test glTexSubImage[123]D() parameters for errors.
1895 * \param ctx GL context.
1896 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1897 * \param target texture target given by the user.
1898 * \param level image level given by the user.
1899 * \param xoffset sub-image x offset given by the user.
1900 * \param yoffset sub-image y offset given by the user.
1901 * \param zoffset sub-image z offset given by the user.
1902 * \param format pixel data format given by the user.
1903 * \param type pixel data type given by the user.
1904 * \param width image width given by the user.
1905 * \param height image height given by the user.
1906 * \param depth image depth given by the user.
1908 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1910 * Verifies each of the parameters against the constants specified in
1911 * __struct gl_contextRec::Const and the supported extensions, and according
1912 * to the OpenGL specification.
1915 subtexture_error_check( struct gl_context *ctx, GLuint dimensions,
1916 GLenum target, GLint level,
1917 GLint xoffset, GLint yoffset, GLint zoffset,
1918 GLint width, GLint height, GLint depth,
1919 GLenum format, GLenum type )
1923 /* Basic level check */
1924 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1925 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
1929 /* Check for negative sizes */
1931 _mesa_error(ctx, GL_INVALID_VALUE,
1932 "glTexSubImage%dD(width=%d)", dimensions, width);
1935 if (height < 0 && dimensions > 1) {
1936 _mesa_error(ctx, GL_INVALID_VALUE,
1937 "glTexSubImage%dD(height=%d)", dimensions, height);
1940 if (depth < 0 && dimensions > 2) {
1941 _mesa_error(ctx, GL_INVALID_VALUE,
1942 "glTexSubImage%dD(depth=%d)", dimensions, depth);
1946 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1947 * combinations of format and type that can be used. Formats and types
1948 * that require additional extensions (e.g., GL_FLOAT requires
1949 * GL_OES_texture_float) are filtered elsewhere.
1951 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) {
1952 err = _mesa_es_error_check_format_and_type(format, type, dimensions);
1953 if (err != GL_NO_ERROR) {
1954 _mesa_error(ctx, err,
1955 "glTexSubImage%dD(format = %s, type = %s)",
1957 _mesa_lookup_enum_by_nr(format),
1958 _mesa_lookup_enum_by_nr(type));
1963 err = _mesa_error_check_format_and_type(ctx, format, type);
1964 if (err != GL_NO_ERROR) {
1965 _mesa_error(ctx, err,
1966 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
1967 dimensions, format, type);
1976 * Do second part of glTexSubImage which depends on the destination texture.
1977 * \return GL_TRUE if error recorded, GL_FALSE otherwise
1980 subtexture_error_check2( struct gl_context *ctx, GLuint dimensions,
1981 GLenum target, GLint level,
1982 GLint xoffset, GLint yoffset, GLint zoffset,
1983 GLint width, GLint height, GLint depth,
1984 GLenum format, GLenum type,
1985 const struct gl_texture_image *destTex )
1988 /* undefined image level */
1989 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
1993 if (xoffset < -((GLint)destTex->Border)) {
1994 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
1998 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
1999 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
2003 if (dimensions > 1) {
2004 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : destTex->Border;
2005 if (yoffset < -yBorder) {
2006 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
2010 if (yoffset + height > (GLint) destTex->Height + yBorder) {
2011 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
2016 if (dimensions > 2) {
2017 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : destTex->Border;
2018 if (zoffset < -zBorder) {
2019 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
2022 if (zoffset + depth > (GLint) destTex->Depth + zBorder) {
2023 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
2028 if (_mesa_is_format_compressed(destTex->TexFormat)) {
2031 if (compressedteximage_only_format(ctx, destTex->InternalFormat)) {
2032 _mesa_error(ctx, GL_INVALID_OPERATION,
2033 "glTexSubImage%dD(no compression for format)", dimensions);
2037 /* do tests which depend on compression block size */
2038 _mesa_get_format_block_size(destTex->TexFormat, &bw, &bh);
2040 /* offset must be multiple of block size */
2041 if ((xoffset % bw != 0) || (yoffset % bh != 0)) {
2042 _mesa_error(ctx, GL_INVALID_OPERATION,
2043 "glTexSubImage%dD(xoffset = %d, yoffset = %d)",
2044 dimensions, xoffset, yoffset);
2047 /* size must be multiple of bw by bh or equal to whole texture size */
2048 if ((width % bw != 0) && (GLuint) width != destTex->Width) {
2049 _mesa_error(ctx, GL_INVALID_OPERATION,
2050 "glTexSubImage%dD(width = %d)", dimensions, width);
2053 if ((height % bh != 0) && (GLuint) height != destTex->Height) {
2054 _mesa_error(ctx, GL_INVALID_OPERATION,
2055 "glTexSubImage%dD(height = %d)", dimensions, height);
2060 if (ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) {
2061 /* both source and dest must be integer-valued, or neither */
2062 if (_mesa_is_format_integer_color(destTex->TexFormat) !=
2063 _mesa_is_enum_format_integer(format)) {
2064 _mesa_error(ctx, GL_INVALID_OPERATION,
2065 "glTexSubImage%dD(integer/non-integer format mismatch)",
2076 * Test glCopyTexImage[12]D() parameters for errors.
2078 * \param ctx GL context.
2079 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2080 * \param target texture target given by the user.
2081 * \param level image level given by the user.
2082 * \param internalFormat internal format given by the user.
2083 * \param width image width given by the user.
2084 * \param height image height given by the user.
2085 * \param border texture border.
2087 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2089 * Verifies each of the parameters against the constants specified in
2090 * __struct gl_contextRec::Const and the supported extensions, and according
2091 * to the OpenGL specification.
2094 copytexture_error_check( struct gl_context *ctx, GLuint dimensions,
2095 GLenum target, GLint level, GLint internalFormat,
2096 GLint width, GLint height, GLint border )
2098 const GLenum proxyTarget = get_proxy_target(target);
2099 const GLenum type = GL_FLOAT;
2104 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2105 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)",
2106 dimensions, _mesa_lookup_enum_by_nr(target));
2110 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
2111 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
2112 _mesa_error(ctx, GL_INVALID_VALUE,
2113 "glCopyTexImage%dD(level=%d)", dimensions, level);
2117 /* Check that the source buffer is complete */
2118 if (_mesa_is_user_fbo(ctx->ReadBuffer)) {
2119 if (ctx->ReadBuffer->_Status == 0) {
2120 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2122 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2123 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2124 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2128 if (ctx->ReadBuffer->Visual.samples > 0) {
2129 _mesa_error(ctx, GL_INVALID_OPERATION,
2130 "glCopyTexImage%dD(multisample FBO)",
2137 if (border < 0 || border > 1 ||
2138 ((ctx->API != API_OPENGL ||
2139 target == GL_TEXTURE_RECTANGLE_NV ||
2140 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
2141 _mesa_error(ctx, GL_INVALID_VALUE,
2142 "glCopyTexImage%dD(border=%d)", dimensions, border);
2146 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2149 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) {
2150 switch (internalFormat) {
2155 case GL_LUMINANCE_ALPHA:
2158 _mesa_error(ctx, GL_INVALID_VALUE,
2159 "glCopyTexImage%dD(internalFormat)", dimensions);
2164 baseFormat = _mesa_base_tex_format(ctx, internalFormat);
2165 if (baseFormat < 0) {
2166 _mesa_error(ctx, GL_INVALID_VALUE,
2167 "glCopyTexImage%dD(internalFormat)", dimensions);
2171 if (!_mesa_source_buffer_exists(ctx, baseFormat)) {
2172 _mesa_error(ctx, GL_INVALID_OPERATION,
2173 "glCopyTexImage%dD(missing readbuffer)", dimensions);
2177 /* From the EXT_texture_integer spec:
2179 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2180 * if the texture internalformat is an integer format and the read color
2181 * buffer is not an integer format, or if the internalformat is not an
2182 * integer format and the read color buffer is an integer format."
2184 if (_mesa_is_color_format(internalFormat)) {
2185 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
2187 if (_mesa_is_enum_format_integer(rb->InternalFormat) !=
2188 _mesa_is_enum_format_integer(internalFormat)) {
2189 _mesa_error(ctx, GL_INVALID_OPERATION,
2190 "glCopyTexImage%dD(integer vs non-integer)", dimensions);
2195 /* Do size, level checking */
2196 sizeOK = (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB)
2197 ? (width == height) : 1;
2199 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
2200 internalFormat, baseFormat,
2201 type, width, height,
2205 if (dimensions == 1) {
2206 _mesa_error(ctx, GL_INVALID_VALUE,
2207 "glCopyTexImage1D(width=%d)", width);
2210 ASSERT(dimensions == 2);
2211 _mesa_error(ctx, GL_INVALID_VALUE,
2212 "glCopyTexImage2D(width=%d, height=%d)", width, height);
2217 if (_mesa_is_compressed_format(ctx, internalFormat)) {
2218 if (!target_can_be_compressed(ctx, target, internalFormat)) {
2219 _mesa_error(ctx, GL_INVALID_ENUM,
2220 "glCopyTexImage%dD(target)", dimensions);
2223 if (compressedteximage_only_format(ctx, internalFormat)) {
2224 _mesa_error(ctx, GL_INVALID_OPERATION,
2225 "glCopyTexImage%dD(no compression for format)", dimensions);
2229 _mesa_error(ctx, GL_INVALID_OPERATION,
2230 "glCopyTexImage%dD(border!=0)", dimensions);
2235 if (!mutable_tex_object(ctx, target)) {
2236 _mesa_error(ctx, GL_INVALID_OPERATION,
2237 "glCopyTexImage%dD(immutable texture)", dimensions);
2241 /* if we get here, the parameters are OK */
2247 * Test glCopyTexSubImage[12]D() parameters for errors.
2248 * Note that this is the first part of error checking.
2249 * See also copytexsubimage_error_check2() below for the second part.
2251 * \param ctx GL context.
2252 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2253 * \param target texture target given by the user.
2254 * \param level image level given by the user.
2256 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2259 copytexsubimage_error_check1( struct gl_context *ctx, GLuint dimensions,
2260 GLenum target, GLint level)
2262 /* Check that the source buffer is complete */
2263 if (_mesa_is_user_fbo(ctx->ReadBuffer)) {
2264 if (ctx->ReadBuffer->_Status == 0) {
2265 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2267 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2268 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2269 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2273 if (ctx->ReadBuffer->Visual.samples > 0) {
2274 _mesa_error(ctx, GL_INVALID_OPERATION,
2275 "glCopyTexSubImage%dD(multisample FBO)",
2281 /* check target (proxies not allowed) */
2282 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2283 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)",
2284 dimensions, _mesa_lookup_enum_by_nr(target));
2289 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
2290 _mesa_error(ctx, GL_INVALID_VALUE,
2291 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
2300 * Second part of error checking for glCopyTexSubImage[12]D().
2301 * \param xoffset sub-image x offset given by the user.
2302 * \param yoffset sub-image y offset given by the user.
2303 * \param zoffset sub-image z offset given by the user.
2304 * \param width image width given by the user.
2305 * \param height image height given by the user.
2308 copytexsubimage_error_check2( struct gl_context *ctx, GLuint dimensions,
2309 GLenum target, GLint level,
2310 GLint xoffset, GLint yoffset, GLint zoffset,
2311 GLsizei width, GLsizei height,
2312 const struct gl_texture_image *teximage )
2314 /* check that dest tex image exists */
2316 _mesa_error(ctx, GL_INVALID_OPERATION,
2317 "glCopyTexSubImage%dD(undefined texture level: %d)",
2324 _mesa_error(ctx, GL_INVALID_VALUE,
2325 "glCopyTexSubImage%dD(width=%d)", dimensions, width);
2328 if (dimensions > 1 && height < 0) {
2329 _mesa_error(ctx, GL_INVALID_VALUE,
2330 "glCopyTexSubImage%dD(height=%d)", dimensions, height);
2334 /* check x/y offsets */
2335 if (xoffset < -((GLint)teximage->Border)) {
2336 _mesa_error(ctx, GL_INVALID_VALUE,
2337 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
2340 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
2341 _mesa_error(ctx, GL_INVALID_VALUE,
2342 "glCopyTexSubImage%dD(xoffset+width)", dimensions);
2345 if (dimensions > 1) {
2346 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : teximage->Border;
2347 if (yoffset < -yBorder) {
2348 _mesa_error(ctx, GL_INVALID_VALUE,
2349 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
2352 /* NOTE: we're adding the border here, not subtracting! */
2353 if (yoffset + height > (GLint) teximage->Height + yBorder) {
2354 _mesa_error(ctx, GL_INVALID_VALUE,
2355 "glCopyTexSubImage%dD(yoffset+height)", dimensions);
2360 /* check z offset */
2361 if (dimensions > 2) {
2362 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : teximage->Border;
2363 if (zoffset < -zBorder) {
2364 _mesa_error(ctx, GL_INVALID_VALUE,
2365 "glCopyTexSubImage%dD(zoffset)", dimensions);
2368 if (zoffset > (GLint) teximage->Depth + zBorder) {
2369 _mesa_error(ctx, GL_INVALID_VALUE,
2370 "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
2375 if (_mesa_is_format_compressed(teximage->TexFormat)) {
2376 if (compressedteximage_only_format(ctx, teximage->InternalFormat)) {
2377 _mesa_error(ctx, GL_INVALID_OPERATION,
2378 "glCopyTexSubImage%dD(no compression for format)", dimensions);
2381 /* offset must be multiple of 4 */
2382 if ((xoffset & 3) || (yoffset & 3)) {
2383 _mesa_error(ctx, GL_INVALID_VALUE,
2384 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions);
2387 /* size must be multiple of 4 */
2388 if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
2389 _mesa_error(ctx, GL_INVALID_VALUE,
2390 "glCopyTexSubImage%dD(width)", dimensions);
2393 if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
2394 _mesa_error(ctx, GL_INVALID_VALUE,
2395 "glCopyTexSubImage%dD(height)", dimensions);
2400 if (teximage->InternalFormat == GL_YCBCR_MESA) {
2401 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
2405 if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) {
2406 _mesa_error(ctx, GL_INVALID_OPERATION,
2407 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2408 dimensions, teximage->_BaseFormat);
2412 /* From the EXT_texture_integer spec:
2414 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2415 * if the texture internalformat is an integer format and the read color
2416 * buffer is not an integer format, or if the internalformat is not an
2417 * integer format and the read color buffer is an integer format."
2419 if (_mesa_is_color_format(teximage->InternalFormat)) {
2420 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
2422 if (_mesa_is_format_integer_color(rb->Format) !=
2423 _mesa_is_format_integer_color(teximage->TexFormat)) {
2424 _mesa_error(ctx, GL_INVALID_OPERATION,
2425 "glCopyTexImage%dD(integer vs non-integer)", dimensions);
2430 /* if we get here, the parameters are OK */
2435 /** Callback info for walking over FBO hash table */
2438 struct gl_context *ctx;
2439 struct gl_texture_object *texObj;
2445 * Check render to texture callback. Called from _mesa_HashWalk().
2448 check_rtt_cb(GLuint key, void *data, void *userData)
2450 struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
2451 const struct cb_info *info = (struct cb_info *) userData;
2452 struct gl_context *ctx = info->ctx;
2453 const struct gl_texture_object *texObj = info->texObj;
2454 const GLuint level = info->level, face = info->face;
2456 /* If this is a user-created FBO */
2457 if (_mesa_is_user_fbo(fb)) {
2459 /* check if any of the FBO's attachments point to 'texObj' */
2460 for (i = 0; i < BUFFER_COUNT; i++) {
2461 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
2462 if (att->Type == GL_TEXTURE &&
2463 att->Texture == texObj &&
2464 att->TextureLevel == level &&
2465 att->CubeMapFace == face) {
2466 ASSERT(_mesa_get_attachment_teximage(att));
2467 /* Tell driver about the new renderbuffer texture */
2468 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
2469 /* Mark fb status as indeterminate to force re-validation */
2478 * When a texture image is specified we have to check if it's bound to
2479 * any framebuffer objects (render to texture) in order to detect changes
2480 * in size or format since that effects FBO completeness.
2481 * Any FBOs rendering into the texture must be re-validated.
2484 _mesa_update_fbo_texture(struct gl_context *ctx,
2485 struct gl_texture_object *texObj,
2486 GLuint face, GLuint level)
2488 /* Only check this texture if it's been marked as RenderToTexture */
2489 if (texObj->_RenderToTexture) {
2490 struct cb_info info;
2492 info.texObj = texObj;
2495 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info);
2501 * If the texture object's GenerateMipmap flag is set and we've
2502 * changed the texture base level image, regenerate the rest of the
2503 * mipmap levels now.
2506 check_gen_mipmap(struct gl_context *ctx, GLenum target,
2507 struct gl_texture_object *texObj, GLint level)
2509 ASSERT(target != GL_TEXTURE_CUBE_MAP);
2510 if (texObj->GenerateMipmap &&
2511 level == texObj->BaseLevel &&
2512 level < texObj->MaxLevel) {
2513 ASSERT(ctx->Driver.GenerateMipmap);
2514 ctx->Driver.GenerateMipmap(ctx, target, texObj);
2519 /** Debug helper: override the user-requested internal format */
2521 override_internal_format(GLenum internalFormat, GLint width, GLint height)
2524 if (internalFormat == GL_RGBA16F_ARB ||
2525 internalFormat == GL_RGBA32F_ARB) {
2526 printf("Convert rgba float tex to int %d x %d\n", width, height);
2529 else if (internalFormat == GL_RGB16F_ARB ||
2530 internalFormat == GL_RGB32F_ARB) {
2531 printf("Convert rgb float tex to int %d x %d\n", width, height);
2534 else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB ||
2535 internalFormat == GL_LUMINANCE_ALPHA32F_ARB) {
2536 printf("Convert luminance float tex to int %d x %d\n", width, height);
2537 return GL_LUMINANCE_ALPHA;
2539 else if (internalFormat == GL_LUMINANCE16F_ARB ||
2540 internalFormat == GL_LUMINANCE32F_ARB) {
2541 printf("Convert luminance float tex to int %d x %d\n", width, height);
2542 return GL_LUMINANCE;
2544 else if (internalFormat == GL_ALPHA16F_ARB ||
2545 internalFormat == GL_ALPHA32F_ARB) {
2546 printf("Convert luminance float tex to int %d x %d\n", width, height);
2550 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2551 internalFormat = GL_RGBA;
2555 return internalFormat;
2558 return internalFormat;
2564 * Choose the actual hardware format for a texture image.
2565 * Try to use the same format as the previous image level when possible.
2566 * Otherwise, ask the driver for the best format.
2567 * It's important to try to choose a consistant format for all levels
2568 * for efficient texture memory layout/allocation. In particular, this
2569 * comes up during automatic mipmap generation.
2572 _mesa_choose_texture_format(struct gl_context *ctx,
2573 struct gl_texture_object *texObj,
2574 GLenum target, GLint level,
2575 GLenum internalFormat, GLenum format, GLenum type)
2579 /* see if we've already chosen a format for the previous level */
2581 struct gl_texture_image *prevImage =
2582 _mesa_select_tex_image(ctx, texObj, target, level - 1);
2583 /* See if the prev level is defined and has an internal format which
2584 * matches the new internal format.
2587 prevImage->Width > 0 &&
2588 prevImage->InternalFormat == internalFormat) {
2589 /* use the same format */
2590 ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE);
2591 return prevImage->TexFormat;
2595 /* choose format from scratch */
2596 f = ctx->Driver.ChooseTextureFormat(ctx, internalFormat, format, type);
2597 ASSERT(f != MESA_FORMAT_NONE);
2602 * Adjust pixel unpack params and image dimensions to strip off the
2603 * one-pixel texture border.
2605 * Gallium and intel don't support texture borders. They've seldem been used
2606 * and seldom been implemented correctly anyway.
2608 * \param unpackNew returns the new pixel unpack parameters
2611 strip_texture_border(GLenum target,
2612 GLint *width, GLint *height, GLint *depth,
2613 const struct gl_pixelstore_attrib *unpack,
2614 struct gl_pixelstore_attrib *unpackNew)
2620 *unpackNew = *unpack;
2622 if (unpackNew->RowLength == 0)
2623 unpackNew->RowLength = *width;
2625 if (unpackNew->ImageHeight == 0)
2626 unpackNew->ImageHeight = *height;
2628 assert(*width >= 3);
2629 unpackNew->SkipPixels++; /* skip the border */
2630 *width = *width - 2; /* reduce the width by two border pixels */
2632 /* The min height of a texture with a border is 3 */
2633 if (*height >= 3 && target != GL_TEXTURE_1D_ARRAY) {
2634 unpackNew->SkipRows++; /* skip the border */
2635 *height = *height - 2; /* reduce the height by two border pixels */
2638 if (*depth >= 3 && target != GL_TEXTURE_2D_ARRAY) {
2639 unpackNew->SkipImages++; /* skip the border */
2640 *depth = *depth - 2; /* reduce the depth by two border pixels */
2645 * Common code to implement all the glTexImage1D/2D/3D functions.
2648 teximage(struct gl_context *ctx, GLuint dims,
2649 GLenum target, GLint level, GLint internalFormat,
2650 GLsizei width, GLsizei height, GLsizei depth,
2651 GLint border, GLenum format, GLenum type,
2652 const GLvoid *pixels)
2655 struct gl_pixelstore_attrib unpack_no_border;
2656 const struct gl_pixelstore_attrib *unpack = &ctx->Unpack;
2658 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2660 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
2661 _mesa_debug(ctx, "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2663 _mesa_lookup_enum_by_nr(target), level,
2664 _mesa_lookup_enum_by_nr(internalFormat),
2665 width, height, depth, border,
2666 _mesa_lookup_enum_by_nr(format),
2667 _mesa_lookup_enum_by_nr(type), pixels);
2669 internalFormat = override_internal_format(internalFormat, width, height);
2671 /* target error checking */
2672 if (!legal_teximage_target(ctx, dims, target)) {
2673 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage%uD(target=%s)",
2674 dims, _mesa_lookup_enum_by_nr(target));
2678 /* general error checking */
2679 error = texture_error_check(ctx, dims, target, level, internalFormat,
2680 format, type, width, height, depth, border);
2682 if (_mesa_is_proxy_texture(target)) {
2683 /* Proxy texture: just clear or set state depending on error checking */
2684 struct gl_texture_image *texImage =
2685 get_proxy_tex_image(ctx, target, level);
2687 if (error == PROXY_ERROR) {
2688 /* image too large, etc. Clear all proxy texture image parameters. */
2690 clear_teximage_fields(texImage);
2692 else if (error == GL_FALSE) {
2693 /* no error, set the tex image parameters */
2694 struct gl_texture_object *texObj =
2695 _mesa_get_current_tex_object(ctx, target);
2696 gl_format texFormat = _mesa_choose_texture_format(ctx, texObj,
2701 if (legal_texture_size(ctx, texFormat, width, height, depth)) {
2702 _mesa_init_teximage_fields(ctx, texImage, width, height,
2703 depth, border, internalFormat,
2706 else if (texImage) {
2707 clear_teximage_fields(texImage);
2712 /* non-proxy target */
2713 const GLuint face = _mesa_tex_target_to_face(target);
2714 struct gl_texture_object *texObj;
2715 struct gl_texture_image *texImage;
2718 return; /* error was recorded */
2721 /* Allow a hardware driver to just strip out the border, to provide
2722 * reliable but slightly incorrect hardware rendering instead of
2723 * rarely-tested software fallback rendering.
2725 if (border && ctx->Const.StripTextureBorder) {
2726 strip_texture_border(target, &width, &height, &depth, unpack,
2729 unpack = &unpack_no_border;
2732 if (ctx->NewState & _NEW_PIXEL)
2733 _mesa_update_state(ctx);
2735 texObj = _mesa_get_current_tex_object(ctx, target);
2737 _mesa_lock_texture(ctx, texObj);
2739 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2742 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
2745 gl_format texFormat;
2747 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
2749 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
2750 internalFormat, format,
2753 if (legal_texture_size(ctx, texFormat, width, height, depth)) {
2754 _mesa_init_teximage_fields(ctx, texImage,
2755 width, height, depth,
2756 border, internalFormat, texFormat);
2758 /* Give the texture to the driver. <pixels> may be null. */
2759 ctx->Driver.TexImage(ctx, dims, texImage, format,
2760 type, pixels, unpack);
2762 check_gen_mipmap(ctx, target, texObj, level);
2764 _mesa_update_fbo_texture(ctx, texObj, face, level);
2766 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
2769 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
2773 _mesa_unlock_texture(ctx, texObj);
2779 * Called from the API. Note that width includes the border.
2782 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
2783 GLsizei width, GLint border, GLenum format,
2784 GLenum type, const GLvoid *pixels )
2786 GET_CURRENT_CONTEXT(ctx);
2787 teximage(ctx, 1, target, level, internalFormat, width, 1, 1,
2788 border, format, type, pixels);
2793 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
2794 GLsizei width, GLsizei height, GLint border,
2795 GLenum format, GLenum type,
2796 const GLvoid *pixels )
2798 GET_CURRENT_CONTEXT(ctx);
2799 teximage(ctx, 2, target, level, internalFormat, width, height, 1,
2800 border, format, type, pixels);
2805 * Called by the API or display list executor.
2806 * Note that width and height include the border.
2809 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
2810 GLsizei width, GLsizei height, GLsizei depth,
2811 GLint border, GLenum format, GLenum type,
2812 const GLvoid *pixels )
2814 GET_CURRENT_CONTEXT(ctx);
2815 teximage(ctx, 3, target, level, internalFormat, width, height, depth,
2816 border, format, type, pixels);
2821 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
2822 GLsizei width, GLsizei height, GLsizei depth,
2823 GLint border, GLenum format, GLenum type,
2824 const GLvoid *pixels )
2826 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
2827 depth, border, format, type, pixels);
2831 #if FEATURE_OES_EGL_image
2833 _mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image)
2835 struct gl_texture_object *texObj;
2836 struct gl_texture_image *texImage;
2838 GET_CURRENT_CONTEXT(ctx);
2839 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2843 valid_target = ctx->Extensions.OES_EGL_image;
2845 case GL_TEXTURE_EXTERNAL_OES:
2846 valid_target = ctx->Extensions.OES_EGL_image_external;
2849 valid_target = false;
2853 if (!valid_target) {
2854 _mesa_error(ctx, GL_INVALID_ENUM,
2855 "glEGLImageTargetTexture2D(target=%d)", target);
2859 if (ctx->NewState & _NEW_PIXEL)
2860 _mesa_update_state(ctx);
2862 texObj = _mesa_get_current_tex_object(ctx, target);
2863 _mesa_lock_texture(ctx, texObj);
2865 if (texObj->Immutable) {
2866 _mesa_error(ctx, GL_INVALID_OPERATION,
2867 "glEGLImageTargetTexture2D(texture is immutable)");
2868 _mesa_unlock_texture(ctx, texObj);
2872 texImage = _mesa_get_tex_image(ctx, texObj, target, 0);
2874 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D");
2876 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
2878 ctx->Driver.EGLImageTargetTexture2D(ctx, target,
2879 texObj, texImage, image);
2881 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
2883 _mesa_unlock_texture(ctx, texObj);
2891 * Implement all the glTexSubImage1/2/3D() functions.
2894 texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
2895 GLint xoffset, GLint yoffset, GLint zoffset,
2896 GLsizei width, GLsizei height, GLsizei depth,
2897 GLenum format, GLenum type, const GLvoid *pixels )
2899 struct gl_texture_object *texObj;
2900 struct gl_texture_image *texImage;
2902 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2904 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
2905 _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
2907 _mesa_lookup_enum_by_nr(target), level,
2908 xoffset, yoffset, zoffset, width, height, depth,
2909 _mesa_lookup_enum_by_nr(format),
2910 _mesa_lookup_enum_by_nr(type), pixels);
2912 /* check target (proxies not allowed) */
2913 if (!legal_texsubimage_target(ctx, dims, target)) {
2914 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)",
2915 dims, _mesa_lookup_enum_by_nr(target));
2919 if (ctx->NewState & _NEW_PIXEL)
2920 _mesa_update_state(ctx);
2922 if (subtexture_error_check(ctx, dims, target, level, xoffset, yoffset, zoffset,
2923 width, height, depth, format, type)) {
2924 return; /* error was detected */
2927 texObj = _mesa_get_current_tex_object(ctx, target);
2929 _mesa_lock_texture(ctx, texObj);
2931 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2933 if (subtexture_error_check2(ctx, dims, target, level,
2934 xoffset, yoffset, zoffset,
2935 width, height, depth,
2936 format, type, texImage)) {
2937 /* error was recorded */
2939 else if (width > 0 && height > 0 && depth > 0) {
2940 /* If we have a border, offset=-1 is legal. Bias by border width. */
2943 if (target != GL_TEXTURE_2D_ARRAY)
2944 zoffset += texImage->Border;
2947 if (target != GL_TEXTURE_1D_ARRAY)
2948 yoffset += texImage->Border;
2951 xoffset += texImage->Border;
2954 ctx->Driver.TexSubImage(ctx, dims, texImage,
2955 xoffset, yoffset, zoffset,
2956 width, height, depth,
2957 format, type, pixels, &ctx->Unpack);
2959 check_gen_mipmap(ctx, target, texObj, level);
2961 ctx->NewState |= _NEW_TEXTURE;
2964 _mesa_unlock_texture(ctx, texObj);
2969 _mesa_TexSubImage1D( GLenum target, GLint level,
2970 GLint xoffset, GLsizei width,
2971 GLenum format, GLenum type,
2972 const GLvoid *pixels )
2974 GET_CURRENT_CONTEXT(ctx);
2975 texsubimage(ctx, 1, target, level,
2978 format, type, pixels);
2983 _mesa_TexSubImage2D( GLenum target, GLint level,
2984 GLint xoffset, GLint yoffset,
2985 GLsizei width, GLsizei height,
2986 GLenum format, GLenum type,
2987 const GLvoid *pixels )
2989 GET_CURRENT_CONTEXT(ctx);
2990 texsubimage(ctx, 2, target, level,
2991 xoffset, yoffset, 0,
2993 format, type, pixels);
2999 _mesa_TexSubImage3D( GLenum target, GLint level,
3000 GLint xoffset, GLint yoffset, GLint zoffset,
3001 GLsizei width, GLsizei height, GLsizei depth,
3002 GLenum format, GLenum type,
3003 const GLvoid *pixels )
3005 GET_CURRENT_CONTEXT(ctx);
3006 texsubimage(ctx, 3, target, level,
3007 xoffset, yoffset, zoffset,
3008 width, height, depth,
3009 format, type, pixels);
3015 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3016 * from. This depends on whether the texture contains color or depth values.
3018 static struct gl_renderbuffer *
3019 get_copy_tex_image_source(struct gl_context *ctx, gl_format texFormat)
3021 if (_mesa_get_format_bits(texFormat, GL_DEPTH_BITS) > 0) {
3022 /* reading from depth/stencil buffer */
3023 return ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer;
3026 /* copying from color buffer */
3027 return ctx->ReadBuffer->_ColorReadBuffer;
3034 * Implement the glCopyTexImage1/2D() functions.
3037 copyteximage(struct gl_context *ctx, GLuint dims,
3038 GLenum target, GLint level, GLenum internalFormat,
3039 GLint x, GLint y, GLsizei width, GLsizei height, GLint border )
3041 struct gl_texture_object *texObj;
3042 struct gl_texture_image *texImage;
3043 const GLuint face = _mesa_tex_target_to_face(target);
3045 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3047 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3048 _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3050 _mesa_lookup_enum_by_nr(target), level,
3051 _mesa_lookup_enum_by_nr(internalFormat),
3052 x, y, width, height, border);
3054 if (ctx->NewState & NEW_COPY_TEX_STATE)
3055 _mesa_update_state(ctx);
3057 if (copytexture_error_check(ctx, dims, target, level, internalFormat,
3058 width, height, border))
3061 texObj = _mesa_get_current_tex_object(ctx, target);
3063 if (border && ctx->Const.StripTextureBorder) {
3065 width -= border * 2;
3068 height -= border * 2;
3073 _mesa_lock_texture(ctx, texObj);
3075 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3078 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
3081 /* choose actual hw format */
3082 gl_format texFormat = _mesa_choose_texture_format(ctx, texObj,
3087 if (legal_texture_size(ctx, texFormat, width, height, 1)) {
3088 GLint srcX = x, srcY = y, dstX = 0, dstY = 0, dstZ = 0;
3090 /* Free old texture image */
3091 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3093 _mesa_init_teximage_fields(ctx, texImage, width, height, 1,
3094 border, internalFormat, texFormat);
3096 /* Allocate texture memory (no pixel data yet) */
3097 ctx->Driver.TexImage(ctx, dims, texImage,
3099 NULL, &ctx->Unpack);
3101 if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY,
3103 struct gl_renderbuffer *srcRb =
3104 get_copy_tex_image_source(ctx, texImage->TexFormat);
3106 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, dstX, dstY, dstZ,
3107 srcRb, srcX, srcY, width, height);
3110 check_gen_mipmap(ctx, target, texObj, level);
3112 _mesa_update_fbo_texture(ctx, texObj, face, level);
3114 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
3117 /* probably too large of image */
3118 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
3122 _mesa_unlock_texture(ctx, texObj);
3128 _mesa_CopyTexImage1D( GLenum target, GLint level,
3129 GLenum internalFormat,
3131 GLsizei width, GLint border )
3133 GET_CURRENT_CONTEXT(ctx);
3134 copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border);
3140 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
3141 GLint x, GLint y, GLsizei width, GLsizei height,
3144 GET_CURRENT_CONTEXT(ctx);
3145 copyteximage(ctx, 2, target, level, internalFormat,
3146 x, y, width, height, border);
3152 * Implementation for glCopyTexSubImage1/2/3D() functions.
3155 copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
3156 GLint xoffset, GLint yoffset, GLint zoffset,
3157 GLint x, GLint y, GLsizei width, GLsizei height)
3159 struct gl_texture_object *texObj;
3160 struct gl_texture_image *texImage;
3162 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3164 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3165 _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
3167 _mesa_lookup_enum_by_nr(target),
3168 level, xoffset, yoffset, zoffset, x, y, width, height);
3170 if (ctx->NewState & NEW_COPY_TEX_STATE)
3171 _mesa_update_state(ctx);
3173 if (copytexsubimage_error_check1(ctx, dims, target, level))
3176 texObj = _mesa_get_current_tex_object(ctx, target);
3178 _mesa_lock_texture(ctx, texObj);
3180 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3182 if (copytexsubimage_error_check2(ctx, dims, target, level, xoffset, yoffset,
3183 zoffset, width, height, texImage)) {
3184 /* error was recored */
3187 /* If we have a border, offset=-1 is legal. Bias by border width. */
3190 if (target != GL_TEXTURE_2D_ARRAY)
3191 zoffset += texImage->Border;
3194 if (target != GL_TEXTURE_1D_ARRAY)
3195 yoffset += texImage->Border;
3198 xoffset += texImage->Border;
3201 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3203 struct gl_renderbuffer *srcRb =
3204 get_copy_tex_image_source(ctx, texImage->TexFormat);
3206 ctx->Driver.CopyTexSubImage(ctx, dims, texImage,
3207 xoffset, yoffset, zoffset,
3208 srcRb, x, y, width, height);
3210 check_gen_mipmap(ctx, target, texObj, level);
3212 ctx->NewState |= _NEW_TEXTURE;
3216 _mesa_unlock_texture(ctx, texObj);
3221 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
3222 GLint xoffset, GLint x, GLint y, GLsizei width )
3224 GET_CURRENT_CONTEXT(ctx);
3225 copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1);
3231 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
3232 GLint xoffset, GLint yoffset,
3233 GLint x, GLint y, GLsizei width, GLsizei height )
3235 GET_CURRENT_CONTEXT(ctx);
3236 copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y,
3243 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
3244 GLint xoffset, GLint yoffset, GLint zoffset,
3245 GLint x, GLint y, GLsizei width, GLsizei height )
3247 GET_CURRENT_CONTEXT(ctx);
3248 copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset,
3249 x, y, width, height);
3255 /**********************************************************************/
3256 /****** Compressed Textures ******/
3257 /**********************************************************************/
3261 * Return expected size of a compressed texture.
3264 compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth,
3267 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
3268 return _mesa_format_image_size(mesaFormat, width, height, depth);
3273 * Return compressed texture block size, in pixels.
3276 get_compressed_block_size(GLenum glformat, GLuint *bw, GLuint *bh)
3278 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
3279 _mesa_get_format_block_size(mesaFormat, bw, bh);
3284 * Error checking for glCompressedTexImage[123]D().
3285 * \param reason returns reason for error, if any
3286 * \return error code or GL_NO_ERROR or PROXY_ERROR.
3289 compressed_texture_error_check(struct gl_context *ctx, GLint dimensions,
3290 GLenum target, GLint level,
3291 GLenum internalFormat, GLsizei width,
3292 GLsizei height, GLsizei depth, GLint border,
3293 GLsizei imageSize, char **reason)
3295 const GLenum proxyTarget = get_proxy_target(target);
3296 const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
3298 GLenum choose_format;
3300 GLenum proxy_format;
3302 *reason = ""; /* no error */
3304 if (!target_can_be_compressed(ctx, target, internalFormat)) {
3306 return GL_INVALID_ENUM;
3309 /* This will detect any invalid internalFormat value */
3310 if (!_mesa_is_compressed_format(ctx, internalFormat)) {
3311 *reason = "internalFormat";
3312 return GL_INVALID_ENUM;
3315 switch (internalFormat) {
3317 case GL_PALETTE4_RGB8_OES:
3318 case GL_PALETTE4_RGBA8_OES:
3319 case GL_PALETTE4_R5_G6_B5_OES:
3320 case GL_PALETTE4_RGBA4_OES:
3321 case GL_PALETTE4_RGB5_A1_OES:
3322 case GL_PALETTE8_RGB8_OES:
3323 case GL_PALETTE8_RGBA8_OES:
3324 case GL_PALETTE8_R5_G6_B5_OES:
3325 case GL_PALETTE8_RGBA4_OES:
3326 case GL_PALETTE8_RGB5_A1_OES:
3327 _mesa_cpal_compressed_format_type(internalFormat, &choose_format,
3329 proxy_format = choose_format;
3332 if (level > 0 || level < -maxLevels) {
3334 return GL_INVALID_VALUE;
3337 if (dimensions != 2) {
3338 *reason = "compressed paletted textures must be 2D";
3339 return GL_INVALID_OPERATION;
3342 /* Figure out the expected texture size (in bytes). This will be
3343 * checked against the actual size later.
3345 expectedSize = _mesa_cpal_compressed_size(level, internalFormat,
3348 /* This is for the benefit of the TestProxyTexImage below. It expects
3349 * level to be non-negative. OES_compressed_paletted_texture uses a
3350 * weird mechanism where the level specified to glCompressedTexImage2D
3351 * is -(n-1) number of levels in the texture, and the data specifies the
3352 * complete mipmap stack. This is done to ensure the palette is the
3353 * same for all levels.
3360 choose_format = GL_NONE;
3361 choose_type = GL_NONE;
3362 proxy_format = internalFormat;
3365 if (level < 0 || level >= maxLevels) {
3367 return GL_INVALID_VALUE;
3370 /* Figure out the expected texture size (in bytes). This will be
3371 * checked against the actual size later.
3373 expectedSize = compressed_tex_size(width, height, depth, internalFormat);
3377 /* This should really never fail */
3378 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
3379 *reason = "internalFormat";
3380 return GL_INVALID_ENUM;
3383 /* No compressed formats support borders at this time */
3385 *reason = "border != 0";
3386 return GL_INVALID_VALUE;
3389 /* For cube map, width must equal height */
3390 if (_mesa_is_cube_face(target) && width != height) {
3391 *reason = "width != height";
3392 return GL_INVALID_VALUE;
3395 /* check image size against compression block size */
3397 gl_format texFormat =
3398 ctx->Driver.ChooseTextureFormat(ctx, proxy_format,
3399 choose_format, choose_type);
3402 _mesa_get_format_block_size(texFormat, &bw, &bh);
3403 if ((width > bw && width % bw > 0) ||
3404 (height > bh && height % bh > 0)) {
3406 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is
3407 * generated [...] if any parameter combinations are not
3408 * supported by the specific compressed internal format.
3410 *reason = "invalid width or height for compression format";
3411 return GL_INVALID_OPERATION;
3415 /* check image sizes */
3416 if (!ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
3417 proxy_format, choose_format,
3419 width, height, depth, border)) {
3420 /* See error comment above */
3421 *reason = "invalid width, height or format";
3422 if (target == proxyTarget) {
3425 return GL_INVALID_OPERATION;
3428 /* check image size in bytes */
3429 if (expectedSize != imageSize) {
3430 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
3431 * if <imageSize> is not consistent with the format, dimensions, and
3432 * contents of the specified image.
3434 *reason = "imageSize inconsistant with width/height/format";
3435 return GL_INVALID_VALUE;
3438 if (!mutable_tex_object(ctx, target)) {
3439 *reason = "immutable texture";
3440 return GL_INVALID_OPERATION;
3448 * Error checking for glCompressedTexSubImage[123]D().
3449 * \warning There are some bad assumptions here about the size of compressed
3450 * texture tiles (multiple of 4) used to test the validity of the
3451 * offset and size parameters.
3452 * \return error code or GL_NO_ERROR.
3455 compressed_subtexture_error_check(struct gl_context *ctx, GLint dimensions,
3456 GLenum target, GLint level,
3457 GLint xoffset, GLint yoffset, GLint zoffset,
3458 GLsizei width, GLsizei height, GLsizei depth,
3459 GLenum format, GLsizei imageSize)
3461 GLint expectedSize, maxLevels = 0, maxTextureSize;
3465 if (dimensions == 1) {
3466 /* 1D compressed textures not allowed */
3467 return GL_INVALID_ENUM;
3469 else if (dimensions == 2) {
3470 if (target == GL_PROXY_TEXTURE_2D) {
3471 maxLevels = ctx->Const.MaxTextureLevels;
3473 else if (target == GL_TEXTURE_2D) {
3474 maxLevels = ctx->Const.MaxTextureLevels;
3476 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
3477 if (!ctx->Extensions.ARB_texture_cube_map)
3478 return GL_INVALID_ENUM; /*target*/
3479 maxLevels = ctx->Const.MaxCubeTextureLevels;
3481 else if (_mesa_is_cube_face(target)) {
3482 if (!ctx->Extensions.ARB_texture_cube_map)
3483 return GL_INVALID_ENUM; /*target*/
3484 maxLevels = ctx->Const.MaxCubeTextureLevels;
3487 return GL_INVALID_ENUM; /*target*/
3490 else if (dimensions == 3) {
3491 /* 3D compressed textures not allowed */
3492 return GL_INVALID_ENUM;
3495 maxTextureSize = 1 << (maxLevels - 1);
3497 /* this will catch any invalid compressed format token */
3498 if (!_mesa_is_compressed_format(ctx, format))
3499 return GL_INVALID_ENUM;
3501 if (width < 1 || width > maxTextureSize)
3502 return GL_INVALID_VALUE;
3504 if ((height < 1 || height > maxTextureSize)
3506 return GL_INVALID_VALUE;
3508 if (level < 0 || level >= maxLevels)
3509 return GL_INVALID_VALUE;
3512 * do checks which depend on compression block size
3514 get_compressed_block_size(format, &bw, &bh);
3516 if ((xoffset % bw != 0) || (yoffset % bh != 0))
3517 return GL_INVALID_VALUE;
3519 if ((width % bw != 0) && width != 2 && width != 1)
3520 return GL_INVALID_VALUE;
3522 if ((height % bh != 0) && height != 2 && height != 1)
3523 return GL_INVALID_VALUE;
3525 expectedSize = compressed_tex_size(width, height, depth, format);
3526 if (expectedSize != imageSize)
3527 return GL_INVALID_VALUE;
3534 * Do second part of glCompressedTexSubImage error checking.
3535 * \return GL_TRUE if error found, GL_FALSE otherwise.
3538 compressed_subtexture_error_check2(struct gl_context *ctx, GLuint dims,
3539 GLsizei width, GLsizei height,
3540 GLsizei depth, GLenum format,
3541 struct gl_texture_image *texImage)
3544 if ((GLint) format != texImage->InternalFormat) {
3545 _mesa_error(ctx, GL_INVALID_OPERATION,
3546 "glCompressedTexSubImage%uD(format=0x%x)", dims, format);
3550 if (compressedteximage_only_format(ctx, format)) {
3551 _mesa_error(ctx, GL_INVALID_OPERATION,
3552 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)"
3557 if (((width == 1 || width == 2) &&
3558 width != (GLsizei) texImage->Width) ||
3559 (width > (GLsizei) texImage->Width)) {
3560 _mesa_error(ctx, GL_INVALID_VALUE,
3561 "glCompressedTexSubImage%uD(width=%d)", dims, width);
3566 if (((height == 1 || height == 2) &&
3567 height != (GLsizei) texImage->Height) ||
3568 (height > (GLsizei) texImage->Height)) {
3569 _mesa_error(ctx, GL_INVALID_VALUE,
3570 "glCompressedTexSubImage%uD(height=%d)", dims, height);
3576 if (((depth == 1 || depth == 2) &&
3577 depth != (GLsizei) texImage->Depth) ||
3578 (depth > (GLsizei) texImage->Depth)) {
3579 _mesa_error(ctx, GL_INVALID_VALUE,
3580 "glCompressedTexSubImage%uD(depth=%d)", dims, depth);
3590 * Implementation of the glCompressedTexImage1/2/3D() functions.
3593 compressedteximage(struct gl_context *ctx, GLuint dims,
3594 GLenum target, GLint level,
3595 GLenum internalFormat, GLsizei width,
3596 GLsizei height, GLsizei depth, GLint border,
3597 GLsizei imageSize, const GLvoid *data)
3602 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3604 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3606 "glCompressedTexImage%uDARB %s %d %s %d %d %d %d %d %p\n",
3608 _mesa_lookup_enum_by_nr(target), level,
3609 _mesa_lookup_enum_by_nr(internalFormat),
3610 width, height, depth, border, imageSize, data);
3613 if (!legal_teximage_target(ctx, dims, target)) {
3614 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(target=%s)",
3615 dims, _mesa_lookup_enum_by_nr(target));
3619 error = compressed_texture_error_check(ctx, dims, target, level,
3620 internalFormat, width, height, depth,
3621 border, imageSize, &reason);
3624 /* XXX this is kind of a hack */
3625 if (!error && dims == 2) {
3626 switch (internalFormat) {
3627 case GL_PALETTE4_RGB8_OES:
3628 case GL_PALETTE4_RGBA8_OES:
3629 case GL_PALETTE4_R5_G6_B5_OES:
3630 case GL_PALETTE4_RGBA4_OES:
3631 case GL_PALETTE4_RGB5_A1_OES:
3632 case GL_PALETTE8_RGB8_OES:
3633 case GL_PALETTE8_RGBA8_OES:
3634 case GL_PALETTE8_R5_G6_B5_OES:
3635 case GL_PALETTE8_RGBA4_OES:
3636 case GL_PALETTE8_RGB5_A1_OES:
3637 _mesa_cpal_compressed_teximage2d(target, level, internalFormat,
3638 width, height, imageSize, data);
3644 if (_mesa_is_proxy_texture(target)) {
3645 /* Proxy texture: just check for errors and update proxy state */
3646 struct gl_texture_image *texImage;
3649 /* No parameter errors. Choose a texture format and see if we
3650 * can really allocate the texture.
3652 struct gl_texture_object *texObj =
3653 _mesa_get_current_tex_object(ctx, target);
3654 gl_format texFormat =
3655 _mesa_choose_texture_format(ctx, texObj, target, level,
3656 internalFormat, GL_NONE, GL_NONE);
3657 if (!legal_texture_size(ctx, texFormat, width, height, depth)) {
3658 error = PROXY_ERROR;
3662 texImage = get_proxy_tex_image(ctx, target, level);
3664 if (error == PROXY_ERROR) {
3665 /* if error, clear all proxy texture image parameters */
3666 clear_teximage_fields(texImage);
3668 else if (error == GL_NO_ERROR) {
3669 /* no error: store the teximage parameters */
3670 _mesa_init_teximage_fields(ctx, texImage, width, height,
3671 depth, border, internalFormat,
3675 /* other, regular error */
3676 _mesa_error(ctx, error, "glCompressedTexImage%uD(%s)", dims, reason);
3681 /* non-proxy target */
3682 struct gl_texture_object *texObj;
3683 struct gl_texture_image *texImage;
3686 _mesa_error(ctx, error, "glCompressedTexImage%uD(%s)", dims, reason);
3690 texObj = _mesa_get_current_tex_object(ctx, target);
3692 _mesa_lock_texture(ctx, texObj);
3694 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3696 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3697 "glCompressedTexImage%uD", dims);
3700 gl_format texFormat;
3702 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3704 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
3705 internalFormat, GL_NONE,
3708 if (legal_texture_size(ctx, texFormat, width, height, depth)) {
3709 _mesa_init_teximage_fields(ctx, texImage,
3710 width, height, depth,
3711 border, internalFormat, texFormat);
3713 ctx->Driver.CompressedTexImage(ctx, dims, texImage, imageSize,
3716 check_gen_mipmap(ctx, target, texObj, level);
3718 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
3721 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3722 "glCompressedTexImage%uD", dims);
3726 _mesa_unlock_texture(ctx, texObj);
3732 _mesa_CompressedTexImage1DARB(GLenum target, GLint level,
3733 GLenum internalFormat, GLsizei width,
3734 GLint border, GLsizei imageSize,
3737 GET_CURRENT_CONTEXT(ctx);
3738 compressedteximage(ctx, 1, target, level, internalFormat,
3739 width, 1, 1, border, imageSize, data);
3744 _mesa_CompressedTexImage2DARB(GLenum target, GLint level,
3745 GLenum internalFormat, GLsizei width,
3746 GLsizei height, GLint border, GLsizei imageSize,
3749 GET_CURRENT_CONTEXT(ctx);
3750 compressedteximage(ctx, 2, target, level, internalFormat,
3751 width, height, 1, border, imageSize, data);
3756 _mesa_CompressedTexImage3DARB(GLenum target, GLint level,
3757 GLenum internalFormat, GLsizei width,
3758 GLsizei height, GLsizei depth, GLint border,
3759 GLsizei imageSize, const GLvoid *data)
3761 GET_CURRENT_CONTEXT(ctx);
3762 compressedteximage(ctx, 3, target, level, internalFormat,
3763 width, height, depth, border, imageSize, data);
3768 * Common helper for glCompressedTexSubImage1/2/3D().
3771 compressed_tex_sub_image(GLuint dims, GLenum target, GLint level,
3772 GLint xoffset, GLint yoffset, GLint zoffset,
3773 GLsizei width, GLsizei height, GLsizei depth,
3774 GLenum format, GLsizei imageSize, const GLvoid *data)
3776 struct gl_texture_object *texObj;
3777 struct gl_texture_image *texImage;
3779 GET_CURRENT_CONTEXT(ctx);
3780 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3782 error = compressed_subtexture_error_check(ctx, dims, target, level,
3783 xoffset, 0, 0, /* pos */
3784 width, height, depth, /* size */
3787 _mesa_error(ctx, error, "glCompressedTexSubImage%uD", dims);
3791 texObj = _mesa_get_current_tex_object(ctx, target);
3793 _mesa_lock_texture(ctx, texObj);
3795 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3798 if (compressed_subtexture_error_check2(ctx, dims, width, height, depth,
3799 format, texImage)) {
3800 /* error was recorded */
3802 else if (width > 0 && height > 0 && depth > 0) {
3803 ctx->Driver.CompressedTexSubImage(ctx, dims, texImage,
3804 xoffset, yoffset, zoffset,
3805 width, height, depth,
3806 format, imageSize, data);
3808 check_gen_mipmap(ctx, target, texObj, level);
3810 ctx->NewState |= _NEW_TEXTURE;
3813 _mesa_unlock_texture(ctx, texObj);
3818 _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
3819 GLsizei width, GLenum format,
3820 GLsizei imageSize, const GLvoid *data)
3822 compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1,
3823 format, imageSize, data);
3828 _mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
3829 GLint yoffset, GLsizei width, GLsizei height,
3830 GLenum format, GLsizei imageSize,
3833 compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0,
3834 width, height, 1, format, imageSize, data);
3839 _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
3840 GLint yoffset, GLint zoffset, GLsizei width,
3841 GLsizei height, GLsizei depth, GLenum format,
3842 GLsizei imageSize, const GLvoid *data)
3844 compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset,
3845 width, height, depth, format, imageSize, data);
3849 get_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat)
3851 switch (internalFormat) {
3853 return MESA_FORMAT_A8;
3855 return MESA_FORMAT_A16;
3856 case GL_ALPHA16F_ARB:
3857 return MESA_FORMAT_ALPHA_FLOAT16;
3858 case GL_ALPHA32F_ARB:
3859 return MESA_FORMAT_ALPHA_FLOAT32;
3860 case GL_ALPHA8I_EXT:
3861 return MESA_FORMAT_ALPHA_INT8;
3862 case GL_ALPHA16I_EXT:
3863 return MESA_FORMAT_ALPHA_INT16;
3864 case GL_ALPHA32I_EXT:
3865 return MESA_FORMAT_ALPHA_INT32;
3866 case GL_ALPHA8UI_EXT:
3867 return MESA_FORMAT_ALPHA_UINT8;
3868 case GL_ALPHA16UI_EXT:
3869 return MESA_FORMAT_ALPHA_UINT16;
3870 case GL_ALPHA32UI_EXT:
3871 return MESA_FORMAT_ALPHA_UINT32;
3873 return MESA_FORMAT_L8;
3874 case GL_LUMINANCE16:
3875 return MESA_FORMAT_L16;
3876 case GL_LUMINANCE16F_ARB:
3877 return MESA_FORMAT_LUMINANCE_FLOAT16;
3878 case GL_LUMINANCE32F_ARB:
3879 return MESA_FORMAT_LUMINANCE_FLOAT32;
3880 case GL_LUMINANCE8I_EXT:
3881 return MESA_FORMAT_LUMINANCE_INT8;
3882 case GL_LUMINANCE16I_EXT:
3883 return MESA_FORMAT_LUMINANCE_INT16;
3884 case GL_LUMINANCE32I_EXT:
3885 return MESA_FORMAT_LUMINANCE_INT32;
3886 case GL_LUMINANCE8UI_EXT:
3887 return MESA_FORMAT_LUMINANCE_UINT8;
3888 case GL_LUMINANCE16UI_EXT:
3889 return MESA_FORMAT_LUMINANCE_UINT16;
3890 case GL_LUMINANCE32UI_EXT:
3891 return MESA_FORMAT_LUMINANCE_UINT32;
3892 case GL_LUMINANCE8_ALPHA8:
3893 return MESA_FORMAT_AL88;
3894 case GL_LUMINANCE16_ALPHA16:
3895 return MESA_FORMAT_AL1616;
3896 case GL_LUMINANCE_ALPHA16F_ARB:
3897 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16;
3898 case GL_LUMINANCE_ALPHA32F_ARB:
3899 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32;
3900 case GL_LUMINANCE_ALPHA8I_EXT:
3901 return MESA_FORMAT_LUMINANCE_ALPHA_INT8;
3902 case GL_LUMINANCE_ALPHA16I_EXT:
3903 return MESA_FORMAT_LUMINANCE_ALPHA_INT8;
3904 case GL_LUMINANCE_ALPHA32I_EXT:
3905 return MESA_FORMAT_LUMINANCE_ALPHA_INT16;
3906 case GL_LUMINANCE_ALPHA8UI_EXT:
3907 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8;
3908 case GL_LUMINANCE_ALPHA16UI_EXT:
3909 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16;
3910 case GL_LUMINANCE_ALPHA32UI_EXT:
3911 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32;
3913 return MESA_FORMAT_I8;
3914 case GL_INTENSITY16:
3915 return MESA_FORMAT_I16;
3916 case GL_INTENSITY16F_ARB:
3917 return MESA_FORMAT_INTENSITY_FLOAT16;
3918 case GL_INTENSITY32F_ARB:
3919 return MESA_FORMAT_INTENSITY_FLOAT32;
3920 case GL_INTENSITY8I_EXT:
3921 return MESA_FORMAT_INTENSITY_INT8;
3922 case GL_INTENSITY16I_EXT:
3923 return MESA_FORMAT_INTENSITY_INT16;
3924 case GL_INTENSITY32I_EXT:
3925 return MESA_FORMAT_INTENSITY_INT32;
3926 case GL_INTENSITY8UI_EXT:
3927 return MESA_FORMAT_INTENSITY_UINT8;
3928 case GL_INTENSITY16UI_EXT:
3929 return MESA_FORMAT_INTENSITY_UINT16;
3930 case GL_INTENSITY32UI_EXT:
3931 return MESA_FORMAT_INTENSITY_UINT32;
3933 return MESA_FORMAT_RGBA8888_REV;
3935 return MESA_FORMAT_RGBA_16;
3936 case GL_RGBA16F_ARB:
3937 return MESA_FORMAT_RGBA_FLOAT16;
3938 case GL_RGBA32F_ARB:
3939 return MESA_FORMAT_RGBA_FLOAT32;
3941 return MESA_FORMAT_RGBA_INT8;
3942 case GL_RGBA16I_EXT:
3943 return MESA_FORMAT_RGBA_INT16;
3944 case GL_RGBA32I_EXT:
3945 return MESA_FORMAT_RGBA_INT32;
3946 case GL_RGBA8UI_EXT:
3947 return MESA_FORMAT_RGBA_UINT8;
3948 case GL_RGBA16UI_EXT:
3949 return MESA_FORMAT_RGBA_UINT16;
3950 case GL_RGBA32UI_EXT:
3951 return MESA_FORMAT_RGBA_UINT32;
3954 return MESA_FORMAT_GR88;
3956 return MESA_FORMAT_RG1616;
3958 return MESA_FORMAT_RG_FLOAT16;
3960 return MESA_FORMAT_RG_FLOAT32;
3962 return MESA_FORMAT_RG_INT8;
3964 return MESA_FORMAT_RG_INT16;
3966 return MESA_FORMAT_RG_INT32;
3968 return MESA_FORMAT_RG_UINT8;
3970 return MESA_FORMAT_RG_UINT16;
3972 return MESA_FORMAT_RG_UINT32;
3975 return MESA_FORMAT_R8;
3977 return MESA_FORMAT_R16;
3979 return MESA_FORMAT_R_FLOAT16;
3981 return MESA_FORMAT_R_FLOAT32;
3983 return MESA_FORMAT_R_INT8;
3985 return MESA_FORMAT_R_INT16;
3987 return MESA_FORMAT_R_INT32;
3989 return MESA_FORMAT_R_UINT8;
3991 return MESA_FORMAT_R_UINT16;
3993 return MESA_FORMAT_R_UINT32;
3996 return MESA_FORMAT_NONE;
4001 validate_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat)
4003 gl_format format = get_texbuffer_format(ctx, internalFormat);
4006 if (format == MESA_FORMAT_NONE)
4007 return MESA_FORMAT_NONE;
4009 datatype = _mesa_get_format_datatype(format);
4010 if (datatype == GL_FLOAT && !ctx->Extensions.ARB_texture_float)
4011 return MESA_FORMAT_NONE;
4013 if (datatype == GL_HALF_FLOAT && !ctx->Extensions.ARB_half_float_pixel)
4014 return MESA_FORMAT_NONE;
4016 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make
4017 * any mention of R/RG formats, but they appear in the GL 3.1 core
4020 if (ctx->Version <= 30) {
4021 GLenum base_format = _mesa_get_format_base_format(format);
4023 if (base_format == GL_R || base_format == GL_RG)
4024 return MESA_FORMAT_NONE;
4030 /** GL_ARB_texture_buffer_object */
4032 _mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer)
4034 struct gl_texture_object *texObj;
4035 struct gl_buffer_object *bufObj;
4038 GET_CURRENT_CONTEXT(ctx);
4039 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
4041 if (!ctx->Extensions.ARB_texture_buffer_object) {
4042 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer");
4046 if (target != GL_TEXTURE_BUFFER_ARB) {
4047 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(target)");
4051 format = validate_texbuffer_format(ctx, internalFormat);
4052 if (format == MESA_FORMAT_NONE) {
4053 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(internalFormat 0x%x)",
4058 bufObj = _mesa_lookup_bufferobj(ctx, buffer);
4059 if (buffer && !bufObj) {
4060 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer(buffer %u)", buffer);
4064 texObj = _mesa_get_current_tex_object(ctx, target);
4066 _mesa_lock_texture(ctx, texObj);
4068 _mesa_reference_buffer_object(ctx, &texObj->BufferObject, bufObj);
4069 texObj->BufferObjectFormat = internalFormat;
4070 texObj->_BufferObjectFormat = format;
4072 _mesa_unlock_texture(ctx, texObj);