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"
45 #include "texcompress_cpal.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) {
90 return (ctx->API != API_OPENGL_CORE) ? GL_ALPHA : -1;
97 return (ctx->API != API_OPENGL_CORE) ? GL_LUMINANCE : -1;
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 (ctx->API != API_OPENGL_CORE) ? GL_LUMINANCE_ALPHA : -1;
112 return (ctx->API != API_OPENGL_CORE) ? GL_INTENSITY : -1;
114 return (ctx->API != API_OPENGL_CORE) ? GL_RGB : -1;
125 return (ctx->API != API_OPENGL_CORE) ? GL_RGBA : -1;
139 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
141 if (_mesa_is_gles(ctx)) {
142 switch (internalFormat) {
150 if (ctx->Extensions.ARB_ES2_compatibility) {
151 switch (internalFormat) {
159 if (ctx->Extensions.ARB_depth_texture) {
160 switch (internalFormat) {
161 case GL_DEPTH_COMPONENT:
162 case GL_DEPTH_COMPONENT16:
163 case GL_DEPTH_COMPONENT24:
164 case GL_DEPTH_COMPONENT32:
165 return GL_DEPTH_COMPONENT;
171 switch (internalFormat) {
172 case GL_COMPRESSED_ALPHA:
174 case GL_COMPRESSED_LUMINANCE:
176 case GL_COMPRESSED_LUMINANCE_ALPHA:
177 return GL_LUMINANCE_ALPHA;
178 case GL_COMPRESSED_INTENSITY:
180 case GL_COMPRESSED_RGB:
182 case GL_COMPRESSED_RGBA:
188 if (ctx->Extensions.TDFX_texture_compression_FXT1) {
189 switch (internalFormat) {
190 case GL_COMPRESSED_RGB_FXT1_3DFX:
192 case GL_COMPRESSED_RGBA_FXT1_3DFX:
199 if (ctx->Extensions.EXT_texture_compression_s3tc) {
200 switch (internalFormat) {
201 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
203 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
204 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
205 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
212 if (ctx->Extensions.S3_s3tc) {
213 switch (internalFormat) {
225 if (ctx->Extensions.MESA_ycbcr_texture) {
226 if (internalFormat == GL_YCBCR_MESA)
227 return GL_YCBCR_MESA;
230 if (ctx->Extensions.ARB_texture_float) {
231 switch (internalFormat) {
232 case GL_ALPHA16F_ARB:
233 case GL_ALPHA32F_ARB:
241 case GL_INTENSITY16F_ARB:
242 case GL_INTENSITY32F_ARB:
244 case GL_LUMINANCE16F_ARB:
245 case GL_LUMINANCE32F_ARB:
247 case GL_LUMINANCE_ALPHA16F_ARB:
248 case GL_LUMINANCE_ALPHA32F_ARB:
249 return GL_LUMINANCE_ALPHA;
255 if (ctx->Extensions.ATI_envmap_bumpmap) {
256 switch (internalFormat) {
265 if (ctx->Extensions.EXT_texture_snorm) {
266 switch (internalFormat) {
281 case GL_RGBA16_SNORM:
284 case GL_ALPHA8_SNORM:
285 case GL_ALPHA16_SNORM:
287 case GL_LUMINANCE_SNORM:
288 case GL_LUMINANCE8_SNORM:
289 case GL_LUMINANCE16_SNORM:
291 case GL_LUMINANCE_ALPHA_SNORM:
292 case GL_LUMINANCE8_ALPHA8_SNORM:
293 case GL_LUMINANCE16_ALPHA16_SNORM:
294 return GL_LUMINANCE_ALPHA;
295 case GL_INTENSITY_SNORM:
296 case GL_INTENSITY8_SNORM:
297 case GL_INTENSITY16_SNORM:
304 if (ctx->Extensions.EXT_packed_depth_stencil) {
305 switch (internalFormat) {
306 case GL_DEPTH_STENCIL_EXT:
307 case GL_DEPTH24_STENCIL8_EXT:
308 return GL_DEPTH_STENCIL_EXT;
314 if (ctx->Extensions.EXT_texture_sRGB) {
315 switch (internalFormat) {
318 case GL_COMPRESSED_SRGB_EXT:
319 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
321 case GL_SRGB_ALPHA_EXT:
322 case GL_SRGB8_ALPHA8_EXT:
323 case GL_COMPRESSED_SRGB_ALPHA_EXT:
324 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
325 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
326 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
328 case GL_SLUMINANCE_ALPHA_EXT:
329 case GL_SLUMINANCE8_ALPHA8_EXT:
330 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
331 return GL_LUMINANCE_ALPHA;
332 case GL_SLUMINANCE_EXT:
333 case GL_SLUMINANCE8_EXT:
334 case GL_COMPRESSED_SLUMINANCE_EXT:
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 _mesa_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 _mesa_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 _mesa_is_desktop_gl(ctx)
758 && ctx->Extensions.ARB_texture_buffer_object
759 ? texUnit->CurrentTex[TEXTURE_BUFFER_INDEX] : NULL;
760 case GL_TEXTURE_EXTERNAL_OES:
761 return ctx->Extensions.OES_EGL_image_external
762 ? texUnit->CurrentTex[TEXTURE_EXTERNAL_INDEX] : NULL;
764 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
771 * Return pointer to texture object for given target on current texture unit.
773 struct gl_texture_object *
774 _mesa_get_current_tex_object(struct gl_context *ctx, GLenum target)
776 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
777 return _mesa_select_tex_object(ctx, texUnit, target);
782 * Get a texture image pointer from a texture object, given a texture
783 * target and mipmap level. The target and level parameters should
784 * have already been error-checked.
786 * \param ctx GL context.
787 * \param texObj texture unit.
788 * \param target texture target.
789 * \param level image level.
791 * \return pointer to the texture image structure, or NULL on failure.
793 struct gl_texture_image *
794 _mesa_select_tex_image(struct gl_context *ctx,
795 const struct gl_texture_object *texObj,
796 GLenum target, GLint level)
798 const GLuint face = _mesa_tex_target_to_face(target);
802 ASSERT(level < MAX_TEXTURE_LEVELS);
804 return texObj->Image[face][level];
809 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
810 * it and install it. Only return NULL if passed a bad parameter or run
813 struct gl_texture_image *
814 _mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj,
815 GLenum target, GLint level)
817 struct gl_texture_image *texImage;
822 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
824 texImage = ctx->Driver.NewTextureImage(ctx);
826 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
830 set_tex_image(texObj, target, level, texImage);
838 * Return pointer to the specified proxy texture image.
839 * Note that proxy textures are per-context, not per-texture unit.
840 * \return pointer to texture image or NULL if invalid target, invalid
841 * level, or out of memory.
843 static struct gl_texture_image *
844 get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level)
846 struct gl_texture_image *texImage;
853 case GL_PROXY_TEXTURE_1D:
854 if (level >= ctx->Const.MaxTextureLevels)
856 texIndex = TEXTURE_1D_INDEX;
858 case GL_PROXY_TEXTURE_2D:
859 if (level >= ctx->Const.MaxTextureLevels)
861 texIndex = TEXTURE_2D_INDEX;
863 case GL_PROXY_TEXTURE_3D:
864 if (level >= ctx->Const.Max3DTextureLevels)
866 texIndex = TEXTURE_3D_INDEX;
868 case GL_PROXY_TEXTURE_CUBE_MAP:
869 if (level >= ctx->Const.MaxCubeTextureLevels)
871 texIndex = TEXTURE_CUBE_INDEX;
873 case GL_PROXY_TEXTURE_RECTANGLE_NV:
876 texIndex = TEXTURE_RECT_INDEX;
878 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
879 if (level >= ctx->Const.MaxTextureLevels)
881 texIndex = TEXTURE_1D_ARRAY_INDEX;
883 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
884 if (level >= ctx->Const.MaxTextureLevels)
886 texIndex = TEXTURE_2D_ARRAY_INDEX;
892 texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level];
894 texImage = ctx->Driver.NewTextureImage(ctx);
896 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
899 ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage;
900 /* Set the 'back' pointer */
901 texImage->TexObject = ctx->Texture.ProxyTex[texIndex];
908 * Get the maximum number of allowed mipmap levels.
910 * \param ctx GL context.
911 * \param target texture target.
913 * \return the maximum number of allowed mipmap levels for the given
914 * texture target, or zero if passed a bad target.
919 _mesa_max_texture_levels(struct gl_context *ctx, GLenum target)
923 case GL_PROXY_TEXTURE_1D:
925 case GL_PROXY_TEXTURE_2D:
926 return ctx->Const.MaxTextureLevels;
928 case GL_PROXY_TEXTURE_3D:
929 return ctx->Const.Max3DTextureLevels;
930 case GL_TEXTURE_CUBE_MAP:
931 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
932 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
933 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
934 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
935 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
936 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
937 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
938 return ctx->Extensions.ARB_texture_cube_map
939 ? ctx->Const.MaxCubeTextureLevels : 0;
940 case GL_TEXTURE_RECTANGLE_NV:
941 case GL_PROXY_TEXTURE_RECTANGLE_NV:
942 return ctx->Extensions.NV_texture_rectangle ? 1 : 0;
943 case GL_TEXTURE_1D_ARRAY_EXT:
944 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
945 case GL_TEXTURE_2D_ARRAY_EXT:
946 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
947 return (ctx->Extensions.MESA_texture_array ||
948 ctx->Extensions.EXT_texture_array)
949 ? ctx->Const.MaxTextureLevels : 0;
950 case GL_TEXTURE_BUFFER:
951 return _mesa_is_desktop_gl(ctx)
952 && ctx->Extensions.ARB_texture_buffer_object
954 case GL_TEXTURE_EXTERNAL_OES:
957 return 0; /* bad target */
963 * Return number of dimensions per mipmap level for the given texture target.
966 _mesa_get_texture_dimensions(GLenum target)
970 case GL_PROXY_TEXTURE_1D:
973 case GL_TEXTURE_RECTANGLE:
974 case GL_TEXTURE_CUBE_MAP:
975 case GL_PROXY_TEXTURE_2D:
976 case GL_PROXY_TEXTURE_RECTANGLE:
977 case GL_PROXY_TEXTURE_CUBE_MAP:
978 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
979 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
980 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
981 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
982 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
983 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
984 case GL_TEXTURE_1D_ARRAY:
985 case GL_PROXY_TEXTURE_1D_ARRAY:
986 case GL_TEXTURE_EXTERNAL_OES:
989 case GL_PROXY_TEXTURE_3D:
990 case GL_TEXTURE_2D_ARRAY:
991 case GL_PROXY_TEXTURE_2D_ARRAY:
993 case GL_TEXTURE_BUFFER:
996 _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()",
1005 #if 000 /* not used anymore */
1007 * glTexImage[123]D can accept a NULL image pointer. In this case we
1008 * create a texture image with unspecified image contents per the OpenGL
1012 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
1014 const GLint components = _mesa_components_in_format(format);
1015 const GLint numPixels = width * height * depth;
1016 GLubyte *data = (GLubyte *) malloc(numPixels * components * sizeof(GLubyte));
1020 * Let's see if anyone finds this. If glTexImage2D() is called with
1021 * a NULL image pointer then load the texture image with something
1022 * interesting instead of leaving it indeterminate.
1025 static const char message[8][32] = {
1026 " X X XXXXX XXX X ",
1027 " XX XX X X X X X ",
1029 " X X XXXX XXX XXXXX ",
1032 " X X XXXXX XXX X X ",
1036 GLubyte *imgPtr = data;
1038 for (h = 0; h < depth; h++) {
1039 for (i = 0; i < height; i++) {
1040 GLint srcRow = 7 - (i % 8);
1041 for (j = 0; j < width; j++) {
1042 GLint srcCol = j % 32;
1043 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
1044 for (k = 0; k < components; k++) {
1060 * Set the size and format-related fields of a gl_texture_image struct
1061 * to zero. This is used when a proxy texture test fails.
1064 clear_teximage_fields(struct gl_texture_image *img)
1067 img->_BaseFormat = 0;
1068 img->InternalFormat = 0;
1077 img->HeightLog2 = 0;
1079 img->TexFormat = MESA_FORMAT_NONE;
1084 * Initialize basic fields of the gl_texture_image struct.
1086 * \param ctx GL context.
1087 * \param img texture image structure to be initialized.
1088 * \param width image width.
1089 * \param height image height.
1090 * \param depth image depth.
1091 * \param border image border.
1092 * \param internalFormat internal format.
1093 * \param format the actual hardware format (one of MESA_FORMAT_*)
1095 * Fills in the fields of \p img with the given information.
1096 * Note: width, height and depth include the border.
1099 _mesa_init_teximage_fields(struct gl_context *ctx,
1100 struct gl_texture_image *img,
1101 GLsizei width, GLsizei height, GLsizei depth,
1102 GLint border, GLenum internalFormat,
1108 ASSERT(height >= 0);
1111 target = img->TexObject->Target;
1112 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
1113 ASSERT(img->_BaseFormat > 0);
1114 img->InternalFormat = internalFormat;
1115 img->Border = border;
1117 img->Height = height;
1120 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
1121 img->WidthLog2 = _mesa_logbase2(img->Width2);
1125 case GL_TEXTURE_BUFFER:
1126 case GL_PROXY_TEXTURE_1D:
1131 img->HeightLog2 = 0;
1138 case GL_TEXTURE_1D_ARRAY:
1139 case GL_PROXY_TEXTURE_1D_ARRAY:
1140 img->Height2 = height; /* no border */
1141 img->HeightLog2 = 0; /* not used */
1149 case GL_TEXTURE_RECTANGLE:
1150 case GL_TEXTURE_CUBE_MAP:
1151 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1152 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1153 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1154 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1155 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1156 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1157 case GL_TEXTURE_EXTERNAL_OES:
1158 case GL_PROXY_TEXTURE_2D:
1159 case GL_PROXY_TEXTURE_RECTANGLE:
1160 case GL_PROXY_TEXTURE_CUBE_MAP:
1161 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1162 img->HeightLog2 = _mesa_logbase2(img->Height2);
1169 case GL_TEXTURE_2D_ARRAY:
1170 case GL_PROXY_TEXTURE_2D_ARRAY:
1171 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1172 img->HeightLog2 = _mesa_logbase2(img->Height2);
1173 img->Depth2 = depth; /* no border */
1174 img->DepthLog2 = 0; /* not used */
1177 case GL_PROXY_TEXTURE_3D:
1178 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1179 img->HeightLog2 = _mesa_logbase2(img->Height2);
1180 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
1181 img->DepthLog2 = _mesa_logbase2(img->Depth2);
1184 _mesa_problem(NULL, "invalid target 0x%x in _mesa_init_teximage_fields()",
1188 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
1189 img->TexFormat = format;
1194 * Free and clear fields of the gl_texture_image struct.
1196 * \param ctx GL context.
1197 * \param texImage texture image structure to be cleared.
1199 * After the call, \p texImage will have no data associated with it. Its
1200 * fields are cleared so that its parent object will test incomplete.
1203 _mesa_clear_texture_image(struct gl_context *ctx,
1204 struct gl_texture_image *texImage)
1206 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
1207 clear_teximage_fields(texImage);
1212 * Check the width, height, depth and border of a texture image are legal.
1213 * Used by all the glTexImage, glCompressedTexImage and glCopyTexImage
1215 * The target and level parameters will have already been validated.
1216 * \return GL_TRUE if size is OK, GL_FALSE otherwise.
1219 _mesa_legal_texture_dimensions(struct gl_context *ctx, GLenum target,
1220 GLint level, GLint width, GLint height,
1221 GLint depth, GLint border)
1227 case GL_PROXY_TEXTURE_1D:
1228 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); /* level zero size */
1229 maxSize >>= level; /* level size */
1230 if (width < 2 * border || width > 2 * border + maxSize)
1232 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1233 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1239 case GL_PROXY_TEXTURE_2D:
1240 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1242 if (width < 2 * border || width > 2 * border + maxSize)
1244 if (height < 2 * border || height > 2 * border + maxSize)
1246 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1247 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1249 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1255 case GL_PROXY_TEXTURE_3D:
1256 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1258 if (width < 2 * border || width > 2 * border + maxSize)
1260 if (height < 2 * border || height > 2 * border + maxSize)
1262 if (depth < 2 * border || depth > 2 * border + maxSize)
1264 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1265 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1267 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1269 if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border))
1274 case GL_TEXTURE_RECTANGLE_NV:
1275 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1278 maxSize = ctx->Const.MaxTextureRectSize;
1279 if (width < 0 || width > maxSize)
1281 if (height < 0 || height > maxSize)
1285 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1286 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1287 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1288 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1289 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1290 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1291 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1292 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1294 if (width < 2 * border || width > 2 * border + maxSize)
1296 if (height < 2 * border || height > 2 * border + maxSize)
1298 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1299 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1301 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1306 case GL_TEXTURE_1D_ARRAY_EXT:
1307 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1308 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1310 if (width < 2 * border || width > 2 * border + maxSize)
1312 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers)
1314 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1315 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1320 case GL_TEXTURE_2D_ARRAY_EXT:
1321 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1322 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1324 if (width < 2 * border || width > 2 * border + maxSize)
1326 if (height < 2 * border || height > 2 * border + maxSize)
1328 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers)
1330 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1331 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1333 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1339 _mesa_problem(ctx, "Invalid target in _mesa_legal_texture_dimensions()");
1346 * Do error checking of xoffset, yoffset, width, height for glTexSubImage,
1347 * glCopyTexSubImage and glCompressedTexSubImage.
1348 * Basically, check that the subregion is aligned to the compressed format's
1349 * block size. See comments in function for more info.
1350 * \return GL_TRUE if error found, GL_FALSE otherwise.
1353 error_check_subtexture_dimensions(struct gl_context *ctx,
1354 const char *function,
1356 gl_format texFormat,
1357 GLint xoffset, GLint yoffset,
1358 GLsizei subWidth, GLsizei subHeight,
1359 GLsizei texWidth, GLsizei texHeight)
1364 * The OpenGL spec (and GL_ARB_texture_compression) says only whole
1365 * compressed texture images can be updated. But, that restriction may be
1366 * relaxed for particular compressed formats. At this time, all the
1367 * compressed formats supported by Mesa allow sub-textures to be updated
1368 * along compressed block boundaries.
1370 _mesa_get_format_block_size(texFormat, &bw, &bh);
1372 /* offset must be multiple of block size */
1373 if ((xoffset % bw != 0) || (yoffset % bh != 0)) {
1374 _mesa_error(ctx, GL_INVALID_OPERATION,
1375 "%s%dD(xoffset = %d, yoffset = %d)",
1376 function, dims, xoffset, yoffset);
1380 /* size must be multiple of bw by bh or equal to whole texture size */
1381 if ((subWidth % bw != 0) && subWidth != texWidth) {
1382 _mesa_error(ctx, GL_INVALID_OPERATION,
1383 "%s%dD(width = %d)", function, dims, subWidth);
1387 if ((subHeight % bh != 0) && subHeight != texHeight) {
1388 _mesa_error(ctx, GL_INVALID_OPERATION,
1389 "%s%dD(height = %d)", function, dims, subHeight);
1400 * This is the fallback for Driver.TestProxyTexImage() for doing device-
1401 * specific texture image size checks.
1403 * A hardware driver might override this function if, for example, the
1404 * max 3D texture size is 512x512x64 (i.e. not a cube).
1406 * Note that width, height, depth == 0 is not an error. However, a
1407 * texture with zero width/height/depth will be considered "incomplete"
1408 * and texturing will effectively be disabled.
1410 * \param target any texture target/type
1411 * \param level as passed to glTexImage
1412 * \param format the MESA_FORMAT_x for the tex image
1413 * \param width as passed to glTexImage
1414 * \param height as passed to glTexImage
1415 * \param depth as passed to glTexImage
1416 * \param border as passed to glTexImage
1417 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1420 _mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
1422 GLint width, GLint height, GLint depth, GLint border)
1424 /* We just check if the image size is less than MaxTextureMbytes.
1425 * Some drivers may do more specific checks.
1427 uint64_t bytes = _mesa_format_image_size64(format, width, height, depth);
1428 uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */
1429 mbytes *= _mesa_num_tex_faces(target);
1430 return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes;
1435 * Return true if the format is only valid for glCompressedTexImage.
1438 compressedteximage_only_format(const struct gl_context *ctx, GLenum format)
1441 case GL_ETC1_RGB8_OES:
1442 case GL_PALETTE4_RGB8_OES:
1443 case GL_PALETTE4_RGBA8_OES:
1444 case GL_PALETTE4_R5_G6_B5_OES:
1445 case GL_PALETTE4_RGBA4_OES:
1446 case GL_PALETTE4_RGB5_A1_OES:
1447 case GL_PALETTE8_RGB8_OES:
1448 case GL_PALETTE8_RGBA8_OES:
1449 case GL_PALETTE8_R5_G6_B5_OES:
1450 case GL_PALETTE8_RGBA4_OES:
1451 case GL_PALETTE8_RGB5_A1_OES:
1460 * Helper function to determine whether a target and specific compression
1461 * format are supported.
1464 target_can_be_compressed(const struct gl_context *ctx, GLenum target,
1467 (void) intFormat; /* not used yet */
1471 case GL_PROXY_TEXTURE_2D:
1472 return GL_TRUE; /* true for any compressed format so far */
1473 case GL_PROXY_TEXTURE_CUBE_MAP:
1474 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1475 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1476 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1477 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1478 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1479 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1480 return ctx->Extensions.ARB_texture_cube_map;
1481 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1482 case GL_TEXTURE_2D_ARRAY_EXT:
1483 return (ctx->Extensions.MESA_texture_array ||
1484 ctx->Extensions.EXT_texture_array);
1492 * Check if the given texture target value is legal for a
1493 * glTexImage1/2/3D call.
1496 legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target)
1502 case GL_PROXY_TEXTURE_1D:
1503 return _mesa_is_desktop_gl(ctx);
1511 case GL_PROXY_TEXTURE_2D:
1512 return _mesa_is_desktop_gl(ctx);
1513 case GL_PROXY_TEXTURE_CUBE_MAP:
1514 return _mesa_is_desktop_gl(ctx)
1515 && ctx->Extensions.ARB_texture_cube_map;
1516 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1517 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1518 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1519 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1520 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1521 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1522 return ctx->Extensions.ARB_texture_cube_map;
1523 case GL_TEXTURE_RECTANGLE_NV:
1524 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1525 return _mesa_is_desktop_gl(ctx)
1526 && ctx->Extensions.NV_texture_rectangle;
1527 case GL_TEXTURE_1D_ARRAY_EXT:
1528 case GL_PROXY_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_PROXY_TEXTURE_3D:
1540 return _mesa_is_desktop_gl(ctx);
1541 case GL_TEXTURE_2D_ARRAY_EXT:
1542 return (_mesa_is_desktop_gl(ctx)
1543 && (ctx->Extensions.MESA_texture_array ||
1544 ctx->Extensions.EXT_texture_array))
1545 || _mesa_is_gles3(ctx);
1546 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1547 return _mesa_is_desktop_gl(ctx)
1548 && (ctx->Extensions.MESA_texture_array ||
1549 ctx->Extensions.EXT_texture_array);
1554 _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims);
1561 * Check if the given texture target value is legal for a
1562 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1563 * The difference compared to legal_teximage_target() above is that
1564 * proxy targets are not supported.
1567 legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target)
1571 return _mesa_is_desktop_gl(ctx) && target == GL_TEXTURE_1D;
1576 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1577 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1578 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1579 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1580 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1581 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1582 return ctx->Extensions.ARB_texture_cube_map;
1583 case GL_TEXTURE_RECTANGLE_NV:
1584 return _mesa_is_desktop_gl(ctx)
1585 && ctx->Extensions.NV_texture_rectangle;
1586 case GL_TEXTURE_1D_ARRAY_EXT:
1587 return _mesa_is_desktop_gl(ctx)
1588 && (ctx->Extensions.MESA_texture_array ||
1589 ctx->Extensions.EXT_texture_array);
1597 case GL_TEXTURE_2D_ARRAY_EXT:
1598 return (_mesa_is_desktop_gl(ctx)
1599 && (ctx->Extensions.MESA_texture_array ||
1600 ctx->Extensions.EXT_texture_array))
1601 || _mesa_is_gles3(ctx);
1606 _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()",
1614 * Helper function to determine if a texture object is mutable (in terms
1615 * of GL_ARB_texture_storage).
1618 mutable_tex_object(struct gl_context *ctx, GLenum target)
1620 if (ctx->Extensions.ARB_texture_storage) {
1621 struct gl_texture_object *texObj =
1622 _mesa_get_current_tex_object(ctx, target);
1623 return !texObj->Immutable;
1630 _mesa_es_error_check_format_and_type(GLenum format, GLenum type,
1631 unsigned dimensions)
1633 bool type_valid = true;
1638 case GL_LUMINANCE_ALPHA:
1639 type_valid = (type == GL_UNSIGNED_BYTE
1641 || type == GL_HALF_FLOAT_OES);
1645 type_valid = (type == GL_UNSIGNED_BYTE
1646 || type == GL_UNSIGNED_SHORT_5_6_5
1648 || type == GL_HALF_FLOAT_OES);
1652 type_valid = (type == GL_UNSIGNED_BYTE
1653 || type == GL_UNSIGNED_SHORT_4_4_4_4
1654 || type == GL_UNSIGNED_SHORT_5_5_5_1
1656 || type == GL_HALF_FLOAT_OES
1657 || type == GL_UNSIGNED_INT_2_10_10_10_REV);
1660 case GL_DEPTH_COMPONENT:
1661 /* This format is filtered against invalid dimensionalities elsewhere.
1663 type_valid = (type == GL_UNSIGNED_SHORT
1664 || type == GL_UNSIGNED_INT);
1667 case GL_DEPTH_STENCIL:
1668 /* This format is filtered against invalid dimensionalities elsewhere.
1670 type_valid = (type == GL_UNSIGNED_INT_24_8);
1674 type_valid = (type == GL_UNSIGNED_BYTE);
1676 /* This feels like a bug in the EXT_texture_format_BGRA8888 spec, but
1677 * the format does not appear to be allowed for 3D textures in OpenGL
1680 if (dimensions != 2)
1681 return GL_INVALID_VALUE;
1686 return GL_INVALID_VALUE;
1689 return type_valid ? GL_NO_ERROR : GL_INVALID_OPERATION;
1695 * Return expected size of a compressed texture.
1698 compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth,
1701 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
1702 return _mesa_format_image_size(mesaFormat, width, height, depth);
1707 * Test the glTexImage[123]D() parameters for errors.
1709 * \param ctx GL context.
1710 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1711 * \param target texture target given by the user (already validated).
1712 * \param level image level given by the user.
1713 * \param internalFormat internal format given by the user.
1714 * \param format pixel data format given by the user.
1715 * \param type pixel data type given by the user.
1716 * \param width image width given by the user.
1717 * \param height image height given by the user.
1718 * \param depth image depth given by the user.
1719 * \param border image border given by the user.
1721 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1723 * Verifies each of the parameters against the constants specified in
1724 * __struct gl_contextRec::Const and the supported extensions, and according
1725 * to the OpenGL specification.
1726 * Note that we don't fully error-check the width, height, depth values
1727 * here. That's done in _mesa_legal_texture_dimensions() which is used
1728 * by several other GL entrypoints. Plus, texture dims have a special
1729 * interaction with proxy textures.
1732 texture_error_check( struct gl_context *ctx,
1733 GLuint dimensions, GLenum target,
1734 GLint level, GLint internalFormat,
1735 GLenum format, GLenum type,
1736 GLint width, GLint height,
1737 GLint depth, GLint border )
1739 GLboolean colorFormat;
1742 /* Even though there are no color-index textures, we still have to support
1743 * uploading color-index data and remapping it to RGB via the
1744 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1746 const GLboolean indexFormat = (format == GL_COLOR_INDEX);
1748 /* Note: for proxy textures, some error conditions immediately generate
1749 * a GL error in the usual way. But others do not generate a GL error.
1750 * Instead, they cause the width, height, depth, format fields of the
1751 * texture image to be zeroed-out. The GL spec seems to indicate that the
1752 * zero-out behaviour is only used in cases related to memory allocation.
1756 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
1757 _mesa_error(ctx, GL_INVALID_VALUE,
1758 "glTexImage%dD(level=%d)", dimensions, level);
1763 if (border < 0 || border > 1 ||
1764 ((ctx->API != API_OPENGL ||
1765 target == GL_TEXTURE_RECTANGLE_NV ||
1766 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1767 _mesa_error(ctx, GL_INVALID_VALUE,
1768 "glTexImage%dD(border=%d)", dimensions, border);
1772 if (width < 0 || height < 0 || depth < 0) {
1773 _mesa_error(ctx, GL_INVALID_VALUE,
1774 "glTexImage%dD(width, height or depth < 0)", dimensions);
1778 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1779 * combinations of format, internalFormat, and type that can be used.
1780 * Formats and types that require additional extensions (e.g., GL_FLOAT
1781 * requires GL_OES_texture_float) are filtered elsewhere.
1783 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) {
1784 if (format != internalFormat) {
1785 _mesa_error(ctx, GL_INVALID_OPERATION,
1786 "glTexImage%dD(format = %s, internalFormat = %s)",
1788 _mesa_lookup_enum_by_nr(format),
1789 _mesa_lookup_enum_by_nr(internalFormat));
1793 err = _mesa_es_error_check_format_and_type(format, type, dimensions);
1794 if (err != GL_NO_ERROR) {
1795 _mesa_error(ctx, err,
1796 "glTexImage%dD(format = %s, type = %s)",
1798 _mesa_lookup_enum_by_nr(format),
1799 _mesa_lookup_enum_by_nr(type));
1804 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
1805 _mesa_is_cube_face(target)) && width != height) {
1806 _mesa_error(ctx, GL_INVALID_VALUE,
1807 "glTexImage2D(cube width != height)");
1811 /* Check internalFormat */
1812 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1813 _mesa_error(ctx, GL_INVALID_VALUE,
1814 "glTexImage%dD(internalFormat=%s)",
1815 dimensions, _mesa_lookup_enum_by_nr(internalFormat));
1819 /* Check incoming image format and type */
1820 err = _mesa_error_check_format_and_type(ctx, format, type);
1821 if (err != GL_NO_ERROR) {
1822 _mesa_error(ctx, err,
1823 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1824 dimensions, format, type);
1828 /* make sure internal format and format basically agree */
1829 colorFormat = _mesa_is_color_format(format);
1830 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
1831 (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) ||
1832 (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) ||
1833 (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) ||
1834 (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) {
1835 _mesa_error(ctx, GL_INVALID_OPERATION,
1836 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1837 dimensions, internalFormat, format);
1841 /* additional checks for ycbcr textures */
1842 if (internalFormat == GL_YCBCR_MESA) {
1843 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1844 if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1845 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
1847 _mesa_snprintf(message, sizeof(message),
1848 "glTexImage%dD(format/type YCBCR mismatch)",
1850 _mesa_error(ctx, GL_INVALID_ENUM, "%s", message);
1851 return GL_TRUE; /* error */
1853 if (target != GL_TEXTURE_2D &&
1854 target != GL_PROXY_TEXTURE_2D &&
1855 target != GL_TEXTURE_RECTANGLE_NV &&
1856 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1857 _mesa_error(ctx, GL_INVALID_ENUM,
1858 "glTexImage%dD(bad target for YCbCr texture)",
1864 _mesa_snprintf(message, sizeof(message),
1865 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1866 dimensions, border);
1867 _mesa_error(ctx, GL_INVALID_VALUE, "%s", message);
1872 /* additional checks for depth textures */
1873 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
1874 /* Only 1D, 2D, rect, array and cube textures supported, not 3D
1875 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */
1876 if (target != GL_TEXTURE_1D &&
1877 target != GL_PROXY_TEXTURE_1D &&
1878 target != GL_TEXTURE_2D &&
1879 target != GL_PROXY_TEXTURE_2D &&
1880 target != GL_TEXTURE_1D_ARRAY &&
1881 target != GL_PROXY_TEXTURE_1D_ARRAY &&
1882 target != GL_TEXTURE_2D_ARRAY &&
1883 target != GL_PROXY_TEXTURE_2D_ARRAY &&
1884 target != GL_TEXTURE_RECTANGLE_ARB &&
1885 target != GL_PROXY_TEXTURE_RECTANGLE_ARB &&
1886 !((_mesa_is_cube_face(target) || target == GL_PROXY_TEXTURE_CUBE_MAP) &&
1887 (ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4))) {
1888 _mesa_error(ctx, GL_INVALID_ENUM,
1889 "glTexImage%dD(bad target for depth texture)",
1895 /* additional checks for compressed textures */
1896 if (_mesa_is_compressed_format(ctx, internalFormat)) {
1897 if (!target_can_be_compressed(ctx, target, internalFormat)) {
1898 _mesa_error(ctx, GL_INVALID_ENUM,
1899 "glTexImage%dD(target can't be compressed)", dimensions);
1902 if (compressedteximage_only_format(ctx, internalFormat)) {
1903 _mesa_error(ctx, GL_INVALID_OPERATION,
1904 "glTexImage%dD(no compression for format)", dimensions);
1908 _mesa_error(ctx, GL_INVALID_OPERATION,
1909 "glTexImage%dD(border!=0)", dimensions);
1914 /* additional checks for integer textures */
1915 if ((ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) &&
1916 (_mesa_is_enum_format_integer(format) !=
1917 _mesa_is_enum_format_integer(internalFormat))) {
1918 _mesa_error(ctx, GL_INVALID_OPERATION,
1919 "glTexImage%dD(integer/non-integer format mismatch)",
1924 if (!mutable_tex_object(ctx, target)) {
1925 _mesa_error(ctx, GL_INVALID_OPERATION,
1926 "glTexImage%dD(immutable texture)", dimensions);
1930 /* if we get here, the parameters are OK */
1936 * Error checking for glCompressedTexImage[123]D().
1937 * Note that the width, height and depth values are not fully error checked
1939 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1942 compressed_texture_error_check(struct gl_context *ctx, GLint dimensions,
1943 GLenum target, GLint level,
1944 GLenum internalFormat, GLsizei width,
1945 GLsizei height, GLsizei depth, GLint border,
1948 const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
1950 GLenum choose_format;
1952 GLenum proxy_format;
1953 GLenum error = GL_NO_ERROR;
1954 char *reason = ""; /* no error */
1956 if (!target_can_be_compressed(ctx, target, internalFormat)) {
1958 error = GL_INVALID_ENUM;
1962 /* This will detect any invalid internalFormat value */
1963 if (!_mesa_is_compressed_format(ctx, internalFormat)) {
1964 reason = "internalFormat";
1965 error = GL_INVALID_ENUM;
1969 switch (internalFormat) {
1971 case GL_PALETTE4_RGB8_OES:
1972 case GL_PALETTE4_RGBA8_OES:
1973 case GL_PALETTE4_R5_G6_B5_OES:
1974 case GL_PALETTE4_RGBA4_OES:
1975 case GL_PALETTE4_RGB5_A1_OES:
1976 case GL_PALETTE8_RGB8_OES:
1977 case GL_PALETTE8_RGBA8_OES:
1978 case GL_PALETTE8_R5_G6_B5_OES:
1979 case GL_PALETTE8_RGBA4_OES:
1980 case GL_PALETTE8_RGB5_A1_OES:
1981 _mesa_cpal_compressed_format_type(internalFormat, &choose_format,
1983 proxy_format = choose_format;
1985 /* check level (note that level should be zero or less!) */
1986 if (level > 0 || level < -maxLevels) {
1988 error = GL_INVALID_VALUE;
1992 if (dimensions != 2) {
1993 reason = "compressed paletted textures must be 2D";
1994 error = GL_INVALID_OPERATION;
1998 /* Figure out the expected texture size (in bytes). This will be
1999 * checked against the actual size later.
2001 expectedSize = _mesa_cpal_compressed_size(level, internalFormat,
2004 /* This is for the benefit of the TestProxyTexImage below. It expects
2005 * level to be non-negative. OES_compressed_paletted_texture uses a
2006 * weird mechanism where the level specified to glCompressedTexImage2D
2007 * is -(n-1) number of levels in the texture, and the data specifies the
2008 * complete mipmap stack. This is done to ensure the palette is the
2009 * same for all levels.
2016 choose_format = GL_NONE;
2017 choose_type = GL_NONE;
2018 proxy_format = internalFormat;
2021 if (level < 0 || level >= maxLevels) {
2023 error = GL_INVALID_VALUE;
2027 /* Figure out the expected texture size (in bytes). This will be
2028 * checked against the actual size later.
2030 expectedSize = compressed_tex_size(width, height, depth, internalFormat);
2034 /* This should really never fail */
2035 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
2036 reason = "internalFormat";
2037 error = GL_INVALID_ENUM;
2041 /* No compressed formats support borders at this time */
2043 reason = "border != 0";
2044 error = GL_INVALID_VALUE;
2048 /* For cube map, width must equal height */
2049 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
2050 _mesa_is_cube_face(target)) && width != height) {
2051 reason = "width != height";
2052 error = GL_INVALID_VALUE;
2056 /* check image size against compression block size */
2057 /* XXX possibly move this into the _mesa_legal_texture_dimensions() func */
2059 gl_format texFormat =
2060 ctx->Driver.ChooseTextureFormat(ctx, target, proxy_format,
2061 choose_format, choose_type);
2064 _mesa_get_format_block_size(texFormat, &bw, &bh);
2065 if ((width > bw && width % bw > 0) ||
2066 (height > bh && height % bh > 0)) {
2068 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is
2069 * generated [...] if any parameter combinations are not
2070 * supported by the specific compressed internal format.
2072 reason = "invalid width or height for compression format";
2073 error = GL_INVALID_OPERATION;
2078 /* check image size in bytes */
2079 if (expectedSize != imageSize) {
2080 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
2081 * if <imageSize> is not consistent with the format, dimensions, and
2082 * contents of the specified image.
2084 reason = "imageSize inconsistant with width/height/format";
2085 error = GL_INVALID_VALUE;
2089 if (!mutable_tex_object(ctx, target)) {
2090 reason = "immutable texture";
2091 error = GL_INVALID_OPERATION;
2098 _mesa_error(ctx, error, "glCompressedTexImage%dD(%s)", dimensions, reason);
2105 * Test glTexSubImage[123]D() parameters for errors.
2107 * \param ctx GL context.
2108 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2109 * \param target texture target given by the user (already validated)
2110 * \param level image level given by the user.
2111 * \param xoffset sub-image x offset given by the user.
2112 * \param yoffset sub-image y offset given by the user.
2113 * \param zoffset sub-image z offset given by the user.
2114 * \param format pixel data format given by the user.
2115 * \param type pixel data type given by the user.
2116 * \param width image width given by the user.
2117 * \param height image height given by the user.
2118 * \param depth image depth given by the user.
2120 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2122 * Verifies each of the parameters against the constants specified in
2123 * __struct gl_contextRec::Const and the supported extensions, and according
2124 * to the OpenGL specification.
2127 texsubimage_error_check(struct gl_context *ctx, GLuint dimensions,
2128 GLenum target, GLint level,
2129 GLint xoffset, GLint yoffset, GLint zoffset,
2130 GLint width, GLint height, GLint depth,
2131 GLenum format, GLenum type)
2133 struct gl_texture_object *texObj;
2134 struct gl_texture_image *texImage;
2137 /* check target (proxies not allowed) */
2138 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2139 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)",
2140 dimensions, _mesa_lookup_enum_by_nr(target));
2145 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
2146 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
2150 /* Check for negative sizes */
2152 _mesa_error(ctx, GL_INVALID_VALUE,
2153 "glTexSubImage%dD(width=%d)", dimensions, width);
2156 if (height < 0 && dimensions > 1) {
2157 _mesa_error(ctx, GL_INVALID_VALUE,
2158 "glTexSubImage%dD(height=%d)", dimensions, height);
2161 if (depth < 0 && dimensions > 2) {
2162 _mesa_error(ctx, GL_INVALID_VALUE,
2163 "glTexSubImage%dD(depth=%d)", dimensions, depth);
2167 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2168 * combinations of format and type that can be used. Formats and types
2169 * that require additional extensions (e.g., GL_FLOAT requires
2170 * GL_OES_texture_float) are filtered elsewhere.
2172 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) {
2173 err = _mesa_es_error_check_format_and_type(format, type, dimensions);
2174 if (err != GL_NO_ERROR) {
2175 _mesa_error(ctx, err,
2176 "glTexSubImage%dD(format = %s, type = %s)",
2178 _mesa_lookup_enum_by_nr(format),
2179 _mesa_lookup_enum_by_nr(type));
2184 err = _mesa_error_check_format_and_type(ctx, format, type);
2185 if (err != GL_NO_ERROR) {
2186 _mesa_error(ctx, err,
2187 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
2188 dimensions, format, type);
2192 /* Get dest texture object / image pointers */
2193 texObj = _mesa_get_current_tex_object(ctx, target);
2195 /* must be out of memory */
2196 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage%dD()", dimensions);
2200 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2202 /* non-existant texture level */
2203 _mesa_error(ctx, GL_INVALID_OPERATION,
2204 "glTexSubImage%dD(invalid texture image)", dimensions);
2208 if (xoffset < -((GLint)texImage->Border)) {
2209 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
2213 if (xoffset + width > (GLint) (texImage->Width + texImage->Border)) {
2214 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
2218 if (dimensions > 1) {
2219 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : texImage->Border;
2220 if (yoffset < -yBorder) {
2221 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
2225 if (yoffset + height > (GLint) texImage->Height + yBorder) {
2226 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
2231 if (dimensions > 2) {
2232 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : texImage->Border;
2233 if (zoffset < -zBorder) {
2234 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
2237 if (zoffset + depth > (GLint) texImage->Depth + zBorder) {
2238 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
2243 if (_mesa_is_format_compressed(texImage->TexFormat)) {
2244 if (compressedteximage_only_format(ctx, texImage->InternalFormat)) {
2245 _mesa_error(ctx, GL_INVALID_OPERATION,
2246 "glTexSubImage%dD(no compression for format)", dimensions);
2250 if (error_check_subtexture_dimensions(ctx, "glTexSubImage", dimensions,
2251 texImage->TexFormat,
2254 texImage->Width, texImage->Height)) {
2259 if (ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) {
2260 /* both source and dest must be integer-valued, or neither */
2261 if (_mesa_is_format_integer_color(texImage->TexFormat) !=
2262 _mesa_is_enum_format_integer(format)) {
2263 _mesa_error(ctx, GL_INVALID_OPERATION,
2264 "glTexSubImage%dD(integer/non-integer format mismatch)",
2275 * Test glCopyTexImage[12]D() parameters for errors.
2277 * \param ctx GL context.
2278 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2279 * \param target texture target given by the user.
2280 * \param level image level given by the user.
2281 * \param internalFormat internal format given by the user.
2282 * \param width image width given by the user.
2283 * \param height image height given by the user.
2284 * \param border texture border.
2286 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2288 * Verifies each of the parameters against the constants specified in
2289 * __struct gl_contextRec::Const and the supported extensions, and according
2290 * to the OpenGL specification.
2293 copytexture_error_check( struct gl_context *ctx, GLuint dimensions,
2294 GLenum target, GLint level, GLint internalFormat,
2295 GLint width, GLint height, GLint border )
2300 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2301 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)",
2302 dimensions, _mesa_lookup_enum_by_nr(target));
2307 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
2308 _mesa_error(ctx, GL_INVALID_VALUE,
2309 "glCopyTexImage%dD(level=%d)", dimensions, level);
2313 /* Check that the source buffer is complete */
2314 if (_mesa_is_user_fbo(ctx->ReadBuffer)) {
2315 if (ctx->ReadBuffer->_Status == 0) {
2316 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2318 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2319 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2320 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2324 if (ctx->ReadBuffer->Visual.samples > 0) {
2325 _mesa_error(ctx, GL_INVALID_OPERATION,
2326 "glCopyTexImage%dD(multisample FBO)",
2333 if (border < 0 || border > 1 ||
2334 ((ctx->API != API_OPENGL ||
2335 target == GL_TEXTURE_RECTANGLE_NV ||
2336 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
2337 _mesa_error(ctx, GL_INVALID_VALUE,
2338 "glCopyTexImage%dD(border=%d)", dimensions, border);
2342 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2345 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) {
2346 switch (internalFormat) {
2351 case GL_LUMINANCE_ALPHA:
2354 _mesa_error(ctx, GL_INVALID_VALUE,
2355 "glCopyTexImage%dD(internalFormat)", dimensions);
2360 baseFormat = _mesa_base_tex_format(ctx, internalFormat);
2361 if (baseFormat < 0) {
2362 _mesa_error(ctx, GL_INVALID_VALUE,
2363 "glCopyTexImage%dD(internalFormat)", dimensions);
2367 if (!_mesa_source_buffer_exists(ctx, baseFormat)) {
2368 _mesa_error(ctx, GL_INVALID_OPERATION,
2369 "glCopyTexImage%dD(missing readbuffer)", dimensions);
2373 /* From the EXT_texture_integer spec:
2375 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2376 * if the texture internalformat is an integer format and the read color
2377 * buffer is not an integer format, or if the internalformat is not an
2378 * integer format and the read color buffer is an integer format."
2380 if (_mesa_is_color_format(internalFormat)) {
2381 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
2383 if (_mesa_is_enum_format_integer(rb->InternalFormat) !=
2384 _mesa_is_enum_format_integer(internalFormat)) {
2385 _mesa_error(ctx, GL_INVALID_OPERATION,
2386 "glCopyTexImage%dD(integer vs non-integer)", dimensions);
2391 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
2392 _mesa_is_cube_face(target)) && width != height) {
2393 _mesa_error(ctx, GL_INVALID_VALUE,
2394 "glTexImage2D(cube width != height)");
2398 if (_mesa_is_compressed_format(ctx, internalFormat)) {
2399 if (!target_can_be_compressed(ctx, target, internalFormat)) {
2400 _mesa_error(ctx, GL_INVALID_ENUM,
2401 "glCopyTexImage%dD(target)", dimensions);
2404 if (compressedteximage_only_format(ctx, internalFormat)) {
2405 _mesa_error(ctx, GL_INVALID_OPERATION,
2406 "glCopyTexImage%dD(no compression for format)", dimensions);
2410 _mesa_error(ctx, GL_INVALID_OPERATION,
2411 "glCopyTexImage%dD(border!=0)", dimensions);
2416 if (!mutable_tex_object(ctx, target)) {
2417 _mesa_error(ctx, GL_INVALID_OPERATION,
2418 "glCopyTexImage%dD(immutable texture)", dimensions);
2422 /* if we get here, the parameters are OK */
2428 * Test glCopyTexSubImage[12]D() parameters for errors.
2429 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2432 copytexsubimage_error_check(struct gl_context *ctx, GLuint dimensions,
2433 GLenum target, GLint level,
2434 GLint xoffset, GLint yoffset, GLint zoffset,
2435 GLint width, GLint height)
2437 struct gl_texture_object *texObj;
2438 struct gl_texture_image *texImage;
2440 /* Check that the source buffer is complete */
2441 if (_mesa_is_user_fbo(ctx->ReadBuffer)) {
2442 if (ctx->ReadBuffer->_Status == 0) {
2443 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2445 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2446 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2447 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2451 if (ctx->ReadBuffer->Visual.samples > 0) {
2452 _mesa_error(ctx, GL_INVALID_OPERATION,
2453 "glCopyTexSubImage%dD(multisample FBO)",
2459 /* check target (proxies not allowed) */
2460 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2461 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)",
2462 dimensions, _mesa_lookup_enum_by_nr(target));
2467 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
2468 _mesa_error(ctx, GL_INVALID_VALUE,
2469 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
2473 /* Get dest texture object / image pointers */
2474 texObj = _mesa_get_current_tex_object(ctx, target);
2476 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage%dD()", dimensions);
2480 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2482 /* destination image does not exist */
2483 _mesa_error(ctx, GL_INVALID_OPERATION,
2484 "glCopyTexSubImage%dD(invalid texture image)", dimensions);
2488 if (error_check_subtexture_dimensions(ctx, "glCopyTexSubImage",
2489 dimensions, texImage,
2490 xoffset, yoffset, zoffset,
2491 width, height, 1)) {
2494 if (dimensions > 1 && height < 0) {
2495 _mesa_error(ctx, GL_INVALID_VALUE,
2496 "glCopyTexSubImage%dD(height=%d)", dimensions, height);
2500 /* check x/y offsets */
2501 if (xoffset < -((GLint) texImage->Border)) {
2502 _mesa_error(ctx, GL_INVALID_VALUE,
2503 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
2506 if (xoffset + width > (GLint) (texImage->Width + texImage->Border)) {
2507 _mesa_error(ctx, GL_INVALID_VALUE,
2508 "glCopyTexSubImage%dD(xoffset+width)", dimensions);
2511 if (dimensions > 1) {
2512 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : texImage->Border;
2513 if (yoffset < -yBorder) {
2514 _mesa_error(ctx, GL_INVALID_VALUE,
2515 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
2518 /* NOTE: we're adding the border here, not subtracting! */
2519 if (yoffset + height > (GLint) texImage->Height + yBorder) {
2520 _mesa_error(ctx, GL_INVALID_VALUE,
2521 "glCopyTexSubImage%dD(yoffset+height)", dimensions);
2526 /* check z offset */
2527 if (dimensions > 2) {
2528 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : texImage->Border;
2529 if (zoffset < -zBorder) {
2530 _mesa_error(ctx, GL_INVALID_VALUE,
2531 "glCopyTexSubImage%dD(zoffset)", dimensions);
2534 if (zoffset > (GLint) texImage->Depth + zBorder) {
2535 _mesa_error(ctx, GL_INVALID_VALUE,
2536 "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
2541 if (_mesa_is_format_compressed(texImage->TexFormat)) {
2542 if (compressedteximage_only_format(ctx, texImage->InternalFormat)) {
2543 _mesa_error(ctx, GL_INVALID_OPERATION,
2544 "glCopyTexSubImage%dD(no compression for format)", dimensions);
2548 if (error_check_subtexture_dimensions(ctx, "glCopyTexSubImage",
2549 dimensions, texImage->TexFormat,
2550 xoffset, yoffset, width, height,
2552 texImage->Height)) {
2557 if (texImage->InternalFormat == GL_YCBCR_MESA) {
2558 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
2562 if (!_mesa_source_buffer_exists(ctx, texImage->_BaseFormat)) {
2563 _mesa_error(ctx, GL_INVALID_OPERATION,
2564 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2565 dimensions, texImage->_BaseFormat);
2569 /* From the EXT_texture_integer spec:
2571 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2572 * if the texture internalformat is an integer format and the read color
2573 * buffer is not an integer format, or if the internalformat is not an
2574 * integer format and the read color buffer is an integer format."
2576 if (_mesa_is_color_format(texImage->InternalFormat)) {
2577 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
2579 if (_mesa_is_format_integer_color(rb->Format) !=
2580 _mesa_is_format_integer_color(texImage->TexFormat)) {
2581 _mesa_error(ctx, GL_INVALID_OPERATION,
2582 "glCopyTexImage%dD(integer vs non-integer)", dimensions);
2587 /* if we get here, the parameters are OK */
2592 /** Callback info for walking over FBO hash table */
2595 struct gl_context *ctx;
2596 struct gl_texture_object *texObj;
2602 * Check render to texture callback. Called from _mesa_HashWalk().
2605 check_rtt_cb(GLuint key, void *data, void *userData)
2607 struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
2608 const struct cb_info *info = (struct cb_info *) userData;
2609 struct gl_context *ctx = info->ctx;
2610 const struct gl_texture_object *texObj = info->texObj;
2611 const GLuint level = info->level, face = info->face;
2613 /* If this is a user-created FBO */
2614 if (_mesa_is_user_fbo(fb)) {
2616 /* check if any of the FBO's attachments point to 'texObj' */
2617 for (i = 0; i < BUFFER_COUNT; i++) {
2618 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
2619 if (att->Type == GL_TEXTURE &&
2620 att->Texture == texObj &&
2621 att->TextureLevel == level &&
2622 att->CubeMapFace == face) {
2623 ASSERT(_mesa_get_attachment_teximage(att));
2624 /* Tell driver about the new renderbuffer texture */
2625 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
2626 /* Mark fb status as indeterminate to force re-validation */
2635 * When a texture image is specified we have to check if it's bound to
2636 * any framebuffer objects (render to texture) in order to detect changes
2637 * in size or format since that effects FBO completeness.
2638 * Any FBOs rendering into the texture must be re-validated.
2641 _mesa_update_fbo_texture(struct gl_context *ctx,
2642 struct gl_texture_object *texObj,
2643 GLuint face, GLuint level)
2645 /* Only check this texture if it's been marked as RenderToTexture */
2646 if (texObj->_RenderToTexture) {
2647 struct cb_info info;
2649 info.texObj = texObj;
2652 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info);
2658 * If the texture object's GenerateMipmap flag is set and we've
2659 * changed the texture base level image, regenerate the rest of the
2660 * mipmap levels now.
2663 check_gen_mipmap(struct gl_context *ctx, GLenum target,
2664 struct gl_texture_object *texObj, GLint level)
2666 ASSERT(target != GL_TEXTURE_CUBE_MAP);
2667 if (texObj->GenerateMipmap &&
2668 level == texObj->BaseLevel &&
2669 level < texObj->MaxLevel) {
2670 ASSERT(ctx->Driver.GenerateMipmap);
2671 ctx->Driver.GenerateMipmap(ctx, target, texObj);
2676 /** Debug helper: override the user-requested internal format */
2678 override_internal_format(GLenum internalFormat, GLint width, GLint height)
2681 if (internalFormat == GL_RGBA16F_ARB ||
2682 internalFormat == GL_RGBA32F_ARB) {
2683 printf("Convert rgba float tex to int %d x %d\n", width, height);
2686 else if (internalFormat == GL_RGB16F_ARB ||
2687 internalFormat == GL_RGB32F_ARB) {
2688 printf("Convert rgb float tex to int %d x %d\n", width, height);
2691 else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB ||
2692 internalFormat == GL_LUMINANCE_ALPHA32F_ARB) {
2693 printf("Convert luminance float tex to int %d x %d\n", width, height);
2694 return GL_LUMINANCE_ALPHA;
2696 else if (internalFormat == GL_LUMINANCE16F_ARB ||
2697 internalFormat == GL_LUMINANCE32F_ARB) {
2698 printf("Convert luminance float tex to int %d x %d\n", width, height);
2699 return GL_LUMINANCE;
2701 else if (internalFormat == GL_ALPHA16F_ARB ||
2702 internalFormat == GL_ALPHA32F_ARB) {
2703 printf("Convert luminance float tex to int %d x %d\n", width, height);
2707 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2708 internalFormat = GL_RGBA;
2712 return internalFormat;
2715 return internalFormat;
2721 * Choose the actual hardware format for a texture image.
2722 * Try to use the same format as the previous image level when possible.
2723 * Otherwise, ask the driver for the best format.
2724 * It's important to try to choose a consistant format for all levels
2725 * for efficient texture memory layout/allocation. In particular, this
2726 * comes up during automatic mipmap generation.
2729 _mesa_choose_texture_format(struct gl_context *ctx,
2730 struct gl_texture_object *texObj,
2731 GLenum target, GLint level,
2732 GLenum internalFormat, GLenum format, GLenum type)
2736 /* see if we've already chosen a format for the previous level */
2738 struct gl_texture_image *prevImage =
2739 _mesa_select_tex_image(ctx, texObj, target, level - 1);
2740 /* See if the prev level is defined and has an internal format which
2741 * matches the new internal format.
2744 prevImage->Width > 0 &&
2745 prevImage->InternalFormat == internalFormat) {
2746 /* use the same format */
2747 ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE);
2748 return prevImage->TexFormat;
2752 /* If the application requested compression to an S3TC format but we don't
2753 * have the DTXn library, force a generic compressed format instead.
2755 if (internalFormat != format && format != GL_NONE) {
2756 const GLenum before = internalFormat;
2758 switch (internalFormat) {
2759 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
2760 if (!ctx->Mesa_DXTn)
2761 internalFormat = GL_COMPRESSED_RGB;
2763 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
2764 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
2765 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
2766 if (!ctx->Mesa_DXTn)
2767 internalFormat = GL_COMPRESSED_RGBA;
2773 if (before != internalFormat) {
2775 "DXT compression requested (%s), "
2776 "but libtxc_dxtn library not installed. Using %s "
2778 _mesa_lookup_enum_by_nr(before),
2779 _mesa_lookup_enum_by_nr(internalFormat));
2783 /* choose format from scratch */
2784 f = ctx->Driver.ChooseTextureFormat(ctx, texObj->Target, internalFormat,
2786 ASSERT(f != MESA_FORMAT_NONE);
2791 * Adjust pixel unpack params and image dimensions to strip off the
2792 * one-pixel texture border.
2794 * Gallium and intel don't support texture borders. They've seldem been used
2795 * and seldom been implemented correctly anyway.
2797 * \param unpackNew returns the new pixel unpack parameters
2800 strip_texture_border(GLenum target,
2801 GLint *width, GLint *height, GLint *depth,
2802 const struct gl_pixelstore_attrib *unpack,
2803 struct gl_pixelstore_attrib *unpackNew)
2809 *unpackNew = *unpack;
2811 if (unpackNew->RowLength == 0)
2812 unpackNew->RowLength = *width;
2814 if (unpackNew->ImageHeight == 0)
2815 unpackNew->ImageHeight = *height;
2817 assert(*width >= 3);
2818 unpackNew->SkipPixels++; /* skip the border */
2819 *width = *width - 2; /* reduce the width by two border pixels */
2821 /* The min height of a texture with a border is 3 */
2822 if (*height >= 3 && target != GL_TEXTURE_1D_ARRAY) {
2823 unpackNew->SkipRows++; /* skip the border */
2824 *height = *height - 2; /* reduce the height by two border pixels */
2827 if (*depth >= 3 && target != GL_TEXTURE_2D_ARRAY) {
2828 unpackNew->SkipImages++; /* skip the border */
2829 *depth = *depth - 2; /* reduce the depth by two border pixels */
2835 * Common code to implement all the glTexImage1D/2D/3D functions
2836 * as well as glCompressedTexImage1D/2D/3D.
2837 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls.
2838 * \param format the user's image format (only used if !compressed)
2839 * \param type the user's image type (only used if !compressed)
2840 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls.
2843 teximage(struct gl_context *ctx, GLboolean compressed, GLuint dims,
2844 GLenum target, GLint level, GLint internalFormat,
2845 GLsizei width, GLsizei height, GLsizei depth,
2846 GLint border, GLenum format, GLenum type,
2847 GLsizei imageSize, const GLvoid *pixels)
2849 const char *func = compressed ? "glCompressedTexImage" : "glTexImage";
2850 struct gl_pixelstore_attrib unpack_no_border;
2851 const struct gl_pixelstore_attrib *unpack = &ctx->Unpack;
2852 struct gl_texture_object *texObj;
2853 gl_format texFormat;
2854 GLboolean dimensionsOK, sizeOK;
2856 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2858 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) {
2861 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n",
2863 _mesa_lookup_enum_by_nr(target), level,
2864 _mesa_lookup_enum_by_nr(internalFormat),
2865 width, height, depth, border, pixels);
2868 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2870 _mesa_lookup_enum_by_nr(target), level,
2871 _mesa_lookup_enum_by_nr(internalFormat),
2872 width, height, depth, border,
2873 _mesa_lookup_enum_by_nr(format),
2874 _mesa_lookup_enum_by_nr(type), pixels);
2877 internalFormat = override_internal_format(internalFormat, width, height);
2879 /* target error checking */
2880 if (!legal_teximage_target(ctx, dims, target)) {
2881 _mesa_error(ctx, GL_INVALID_ENUM, "%s%uD(target=%s)",
2882 func, dims, _mesa_lookup_enum_by_nr(target));
2886 /* general error checking */
2888 if (compressed_texture_error_check(ctx, dims, target, level,
2890 width, height, depth,
2895 if (texture_error_check(ctx, dims, target, level, internalFormat,
2896 format, type, width, height, depth, border))
2900 /* Here we convert a cpal compressed image into a regular glTexImage2D
2901 * call by decompressing the texture. If we really want to support cpal
2902 * textures in any driver this would have to be changed.
2904 if (ctx->API == API_OPENGLES && compressed && dims == 2) {
2905 switch (internalFormat) {
2906 case GL_PALETTE4_RGB8_OES:
2907 case GL_PALETTE4_RGBA8_OES:
2908 case GL_PALETTE4_R5_G6_B5_OES:
2909 case GL_PALETTE4_RGBA4_OES:
2910 case GL_PALETTE4_RGB5_A1_OES:
2911 case GL_PALETTE8_RGB8_OES:
2912 case GL_PALETTE8_RGBA8_OES:
2913 case GL_PALETTE8_R5_G6_B5_OES:
2914 case GL_PALETTE8_RGBA4_OES:
2915 case GL_PALETTE8_RGB5_A1_OES:
2916 _mesa_cpal_compressed_teximage2d(target, level, internalFormat,
2917 width, height, imageSize, pixels);
2922 texObj = _mesa_get_current_tex_object(ctx, target);
2925 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
2926 internalFormat, format, type);
2927 assert(texFormat != MESA_FORMAT_NONE);
2929 /* check that width, height, depth are legal for the mipmap level */
2930 dimensionsOK = _mesa_legal_texture_dimensions(ctx, target, level, width,
2931 height, depth, border);
2933 /* check that the texture won't take too much memory, etc */
2934 sizeOK = ctx->Driver.TestProxyTexImage(ctx, _mesa_get_proxy_target(target),
2936 width, height, depth, border);
2938 if (_mesa_is_proxy_texture(target)) {
2939 /* Proxy texture: just clear or set state depending on error checking */
2940 struct gl_texture_image *texImage =
2941 get_proxy_tex_image(ctx, target, level);
2944 return; /* GL_OUT_OF_MEMORY already recorded */
2946 if (dimensionsOK && sizeOK) {
2947 _mesa_init_teximage_fields(ctx, texImage, width, height, depth,
2948 border, internalFormat, texFormat);
2951 clear_teximage_fields(texImage);
2955 /* non-proxy target */
2956 const GLuint face = _mesa_tex_target_to_face(target);
2957 struct gl_texture_image *texImage;
2959 if (!dimensionsOK) {
2960 _mesa_error(ctx, GL_INVALID_VALUE,
2961 "glTexImage%uD(invalid width or height or depth)",
2967 _mesa_error(ctx, GL_OUT_OF_MEMORY,
2968 "glTexImage%uD(image too large)", dims);
2972 /* Allow a hardware driver to just strip out the border, to provide
2973 * reliable but slightly incorrect hardware rendering instead of
2974 * rarely-tested software fallback rendering.
2976 if (border && ctx->Const.StripTextureBorder) {
2977 strip_texture_border(target, &width, &height, &depth, unpack,
2980 unpack = &unpack_no_border;
2983 if (ctx->NewState & _NEW_PIXEL)
2984 _mesa_update_state(ctx);
2986 _mesa_lock_texture(ctx, texObj);
2988 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2991 _mesa_error(ctx, GL_OUT_OF_MEMORY, "%s%uD", func, dims);
2994 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
2996 _mesa_init_teximage_fields(ctx, texImage,
2997 width, height, depth,
2998 border, internalFormat, texFormat);
3000 /* Give the texture to the driver. <pixels> may be null. */
3002 ctx->Driver.CompressedTexImage(ctx, dims, texImage,
3006 ctx->Driver.TexImage(ctx, dims, texImage, format,
3007 type, pixels, unpack);
3010 check_gen_mipmap(ctx, target, texObj, level);
3012 _mesa_update_fbo_texture(ctx, texObj, face, level);
3014 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
3017 _mesa_unlock_texture(ctx, texObj);
3024 * Called from the API. Note that width includes the border.
3027 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
3028 GLsizei width, GLint border, GLenum format,
3029 GLenum type, const GLvoid *pixels )
3031 GET_CURRENT_CONTEXT(ctx);
3032 teximage(ctx, GL_FALSE, 1, target, level, internalFormat, width, 1, 1,
3033 border, format, type, 0, pixels);
3038 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
3039 GLsizei width, GLsizei height, GLint border,
3040 GLenum format, GLenum type,
3041 const GLvoid *pixels )
3043 GET_CURRENT_CONTEXT(ctx);
3044 teximage(ctx, GL_FALSE, 2, target, level, internalFormat, width, height, 1,
3045 border, format, type, 0, pixels);
3050 * Called by the API or display list executor.
3051 * Note that width and height include the border.
3054 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
3055 GLsizei width, GLsizei height, GLsizei depth,
3056 GLint border, GLenum format, GLenum type,
3057 const GLvoid *pixels )
3059 GET_CURRENT_CONTEXT(ctx);
3060 teximage(ctx, GL_FALSE, 3, target, level, internalFormat,
3061 width, height, depth,
3062 border, format, type, 0, pixels);
3067 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
3068 GLsizei width, GLsizei height, GLsizei depth,
3069 GLint border, GLenum format, GLenum type,
3070 const GLvoid *pixels )
3072 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
3073 depth, border, format, type, pixels);
3078 _mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image)
3080 struct gl_texture_object *texObj;
3081 struct gl_texture_image *texImage;
3083 GET_CURRENT_CONTEXT(ctx);
3084 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3088 valid_target = ctx->Extensions.OES_EGL_image;
3090 case GL_TEXTURE_EXTERNAL_OES:
3091 valid_target = ctx->Extensions.OES_EGL_image_external;
3094 valid_target = false;
3098 if (!valid_target) {
3099 _mesa_error(ctx, GL_INVALID_ENUM,
3100 "glEGLImageTargetTexture2D(target=%d)", target);
3104 if (ctx->NewState & _NEW_PIXEL)
3105 _mesa_update_state(ctx);
3107 texObj = _mesa_get_current_tex_object(ctx, target);
3108 _mesa_lock_texture(ctx, texObj);
3110 if (texObj->Immutable) {
3111 _mesa_error(ctx, GL_INVALID_OPERATION,
3112 "glEGLImageTargetTexture2D(texture is immutable)");
3113 _mesa_unlock_texture(ctx, texObj);
3117 texImage = _mesa_get_tex_image(ctx, texObj, target, 0);
3119 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D");
3121 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3123 ctx->Driver.EGLImageTargetTexture2D(ctx, target,
3124 texObj, texImage, image);
3126 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
3128 _mesa_unlock_texture(ctx, texObj);
3135 * Implement all the glTexSubImage1/2/3D() functions.
3138 texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
3139 GLint xoffset, GLint yoffset, GLint zoffset,
3140 GLsizei width, GLsizei height, GLsizei depth,
3141 GLenum format, GLenum type, const GLvoid *pixels )
3143 struct gl_texture_object *texObj;
3144 struct gl_texture_image *texImage;
3146 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3148 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3149 _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
3151 _mesa_lookup_enum_by_nr(target), level,
3152 xoffset, yoffset, zoffset, width, height, depth,
3153 _mesa_lookup_enum_by_nr(format),
3154 _mesa_lookup_enum_by_nr(type), pixels);
3156 /* check target (proxies not allowed) */
3157 if (!legal_texsubimage_target(ctx, dims, target)) {
3158 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)",
3159 dims, _mesa_lookup_enum_by_nr(target));
3163 if (ctx->NewState & _NEW_PIXEL)
3164 _mesa_update_state(ctx);
3166 if (texsubimage_error_check(ctx, dims, target, level,
3167 xoffset, yoffset, zoffset,
3168 width, height, depth, format, type)) {
3169 return; /* error was detected */
3172 texObj = _mesa_get_current_tex_object(ctx, target);
3174 _mesa_lock_texture(ctx, texObj);
3176 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3178 if (width > 0 && height > 0 && depth > 0) {
3179 /* If we have a border, offset=-1 is legal. Bias by border width. */
3182 if (target != GL_TEXTURE_2D_ARRAY)
3183 zoffset += texImage->Border;
3186 if (target != GL_TEXTURE_1D_ARRAY)
3187 yoffset += texImage->Border;
3190 xoffset += texImage->Border;
3193 ctx->Driver.TexSubImage(ctx, dims, texImage,
3194 xoffset, yoffset, zoffset,
3195 width, height, depth,
3196 format, type, pixels, &ctx->Unpack);
3198 check_gen_mipmap(ctx, target, texObj, level);
3200 ctx->NewState |= _NEW_TEXTURE;
3203 _mesa_unlock_texture(ctx, texObj);
3208 _mesa_TexSubImage1D( GLenum target, GLint level,
3209 GLint xoffset, GLsizei width,
3210 GLenum format, GLenum type,
3211 const GLvoid *pixels )
3213 GET_CURRENT_CONTEXT(ctx);
3214 texsubimage(ctx, 1, target, level,
3217 format, type, pixels);
3222 _mesa_TexSubImage2D( GLenum target, GLint level,
3223 GLint xoffset, GLint yoffset,
3224 GLsizei width, GLsizei height,
3225 GLenum format, GLenum type,
3226 const GLvoid *pixels )
3228 GET_CURRENT_CONTEXT(ctx);
3229 texsubimage(ctx, 2, target, level,
3230 xoffset, yoffset, 0,
3232 format, type, pixels);
3238 _mesa_TexSubImage3D( GLenum target, GLint level,
3239 GLint xoffset, GLint yoffset, GLint zoffset,
3240 GLsizei width, GLsizei height, GLsizei depth,
3241 GLenum format, GLenum type,
3242 const GLvoid *pixels )
3244 GET_CURRENT_CONTEXT(ctx);
3245 texsubimage(ctx, 3, target, level,
3246 xoffset, yoffset, zoffset,
3247 width, height, depth,
3248 format, type, pixels);
3254 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3255 * from. This depends on whether the texture contains color or depth values.
3257 static struct gl_renderbuffer *
3258 get_copy_tex_image_source(struct gl_context *ctx, gl_format texFormat)
3260 if (_mesa_get_format_bits(texFormat, GL_DEPTH_BITS) > 0) {
3261 /* reading from depth/stencil buffer */
3262 return ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer;
3265 /* copying from color buffer */
3266 return ctx->ReadBuffer->_ColorReadBuffer;
3273 * Implement the glCopyTexImage1/2D() functions.
3276 copyteximage(struct gl_context *ctx, GLuint dims,
3277 GLenum target, GLint level, GLenum internalFormat,
3278 GLint x, GLint y, GLsizei width, GLsizei height, GLint border )
3280 struct gl_texture_object *texObj;
3281 struct gl_texture_image *texImage;
3282 const GLuint face = _mesa_tex_target_to_face(target);
3283 gl_format texFormat;
3285 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3287 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3288 _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3290 _mesa_lookup_enum_by_nr(target), level,
3291 _mesa_lookup_enum_by_nr(internalFormat),
3292 x, y, width, height, border);
3294 if (ctx->NewState & NEW_COPY_TEX_STATE)
3295 _mesa_update_state(ctx);
3297 if (copytexture_error_check(ctx, dims, target, level, internalFormat,
3298 width, height, border))
3301 if (!_mesa_legal_texture_dimensions(ctx, target, level, width, height,
3303 _mesa_error(ctx, GL_INVALID_VALUE,
3304 "glCopyTexImage%uD(invalid width or height)", dims);
3308 texObj = _mesa_get_current_tex_object(ctx, target);
3311 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
3312 internalFormat, GL_NONE, GL_NONE);
3313 assert(texFormat != MESA_FORMAT_NONE);
3315 if (!ctx->Driver.TestProxyTexImage(ctx, _mesa_get_proxy_target(target),
3317 width, height, 1, border)) {
3318 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3319 "glCopyTexImage%uD(image too large)", dims);
3323 if (border && ctx->Const.StripTextureBorder) {
3325 width -= border * 2;
3328 height -= border * 2;
3333 _mesa_lock_texture(ctx, texObj);
3335 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3338 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
3341 GLint srcX = x, srcY = y, dstX = 0, dstY = 0, dstZ = 0;
3343 /* Free old texture image */
3344 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3346 _mesa_init_teximage_fields(ctx, texImage, width, height, 1,
3347 border, internalFormat, texFormat);
3349 /* Allocate texture memory (no pixel data yet) */
3350 ctx->Driver.TexImage(ctx, dims, texImage,
3352 NULL, &ctx->Unpack);
3354 if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY,
3356 struct gl_renderbuffer *srcRb =
3357 get_copy_tex_image_source(ctx, texImage->TexFormat);
3359 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, dstX, dstY, dstZ,
3360 srcRb, srcX, srcY, width, height);
3363 check_gen_mipmap(ctx, target, texObj, level);
3365 _mesa_update_fbo_texture(ctx, texObj, face, level);
3367 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
3370 _mesa_unlock_texture(ctx, texObj);
3376 _mesa_CopyTexImage1D( GLenum target, GLint level,
3377 GLenum internalFormat,
3379 GLsizei width, GLint border )
3381 GET_CURRENT_CONTEXT(ctx);
3382 copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border);
3388 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
3389 GLint x, GLint y, GLsizei width, GLsizei height,
3392 GET_CURRENT_CONTEXT(ctx);
3393 copyteximage(ctx, 2, target, level, internalFormat,
3394 x, y, width, height, border);
3400 * Implementation for glCopyTexSubImage1/2/3D() functions.
3403 copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
3404 GLint xoffset, GLint yoffset, GLint zoffset,
3405 GLint x, GLint y, GLsizei width, GLsizei height)
3407 struct gl_texture_object *texObj;
3408 struct gl_texture_image *texImage;
3410 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3412 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3413 _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
3415 _mesa_lookup_enum_by_nr(target),
3416 level, xoffset, yoffset, zoffset, x, y, width, height);
3418 if (ctx->NewState & NEW_COPY_TEX_STATE)
3419 _mesa_update_state(ctx);
3421 if (copytexsubimage_error_check(ctx, dims, target, level,
3422 xoffset, yoffset, zoffset, width, height)) {
3426 texObj = _mesa_get_current_tex_object(ctx, target);
3428 _mesa_lock_texture(ctx, texObj);
3430 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3432 /* If we have a border, offset=-1 is legal. Bias by border width. */
3435 if (target != GL_TEXTURE_2D_ARRAY)
3436 zoffset += texImage->Border;
3439 if (target != GL_TEXTURE_1D_ARRAY)
3440 yoffset += texImage->Border;
3443 xoffset += texImage->Border;
3446 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3448 struct gl_renderbuffer *srcRb =
3449 get_copy_tex_image_source(ctx, texImage->TexFormat);
3451 ctx->Driver.CopyTexSubImage(ctx, dims, texImage,
3452 xoffset, yoffset, zoffset,
3453 srcRb, x, y, width, height);
3455 check_gen_mipmap(ctx, target, texObj, level);
3457 ctx->NewState |= _NEW_TEXTURE;
3460 _mesa_unlock_texture(ctx, texObj);
3465 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
3466 GLint xoffset, GLint x, GLint y, GLsizei width )
3468 GET_CURRENT_CONTEXT(ctx);
3469 copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1);
3475 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
3476 GLint xoffset, GLint yoffset,
3477 GLint x, GLint y, GLsizei width, GLsizei height )
3479 GET_CURRENT_CONTEXT(ctx);
3480 copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y,
3487 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
3488 GLint xoffset, GLint yoffset, GLint zoffset,
3489 GLint x, GLint y, GLsizei width, GLsizei height )
3491 GET_CURRENT_CONTEXT(ctx);
3492 copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset,
3493 x, y, width, height);
3499 /**********************************************************************/
3500 /****** Compressed Textures ******/
3501 /**********************************************************************/
3505 * Error checking for glCompressedTexSubImage[123]D().
3506 * \return error code or GL_NO_ERROR.
3509 compressed_subtexture_error_check(struct gl_context *ctx, GLint dims,
3510 GLenum target, GLint level,
3511 GLint xoffset, GLint yoffset, GLint zoffset,
3512 GLsizei width, GLsizei height, GLsizei depth,
3513 GLenum format, GLsizei imageSize)
3515 struct gl_texture_object *texObj;
3516 struct gl_texture_image *texImage;
3523 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
3524 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
3525 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
3526 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
3527 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
3528 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
3532 targetOK = GL_FALSE;
3536 assert(dims == 1 || dims == 3);
3537 /* no 1D or 3D compressed textures at this time */
3538 targetOK = GL_FALSE;
3542 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(target)",
3547 /* this will catch any invalid compressed format token */
3548 if (!_mesa_is_compressed_format(ctx, format)) {
3549 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(format)",
3554 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
3555 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexImage%uD(level=%d)",
3560 expectedSize = compressed_tex_size(width, height, depth, format);
3561 if (expectedSize != imageSize) {
3562 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexImage%uD(size=%d)",
3567 texObj = _mesa_get_current_tex_object(ctx, target);
3569 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3570 "glCompressedTexSubImage%uD()", dims);
3574 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3576 _mesa_error(ctx, GL_INVALID_OPERATION,
3577 "glCompressedTexSubImage%uD(invalid texture image)", dims);
3581 if ((GLint) format != texImage->InternalFormat) {
3582 _mesa_error(ctx, GL_INVALID_OPERATION,
3583 "glCompressedTexSubImage%uD(format=0x%x)", dims, format);
3587 /* check for negative offsets */
3588 if (xoffset < 0 || yoffset < 0 || zoffset < 0) {
3589 _mesa_error(ctx, GL_INVALID_VALUE,
3590 "glCompressedTexSubImage%uD(xoffset=%d yoffset=%d "
3591 "zoffset=%d)", dims, xoffset, yoffset, zoffset);
3595 /* check for bad width, height, depth */
3596 if (width < 0 || height < 0 || depth < 0) {
3597 _mesa_error(ctx, GL_INVALID_VALUE,
3598 "glCompressedTexSubImage%uD(width=%d height=%d depth=%d)",
3599 dims, width, height, depth);
3603 /* check offset + size */
3604 if (xoffset + width > texImage->Width ||
3605 yoffset + height > texImage->Height ||
3606 zoffset + depth > texImage->Depth) {
3607 _mesa_error(ctx, GL_INVALID_VALUE,
3608 "glCompressedTexSubImage%uD(x+width, y+height, z+depth)",
3613 if (compressedteximage_only_format(ctx, format)) {
3614 _mesa_error(ctx, GL_INVALID_OPERATION,
3615 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)"
3620 if (error_check_subtexture_dimensions(ctx, "glCompressedTexSubImage", dims,
3621 texImage->TexFormat,
3622 xoffset, yoffset, width, height,
3623 texImage->Width, texImage->Height)) {
3632 _mesa_CompressedTexImage1DARB(GLenum target, GLint level,
3633 GLenum internalFormat, GLsizei width,
3634 GLint border, GLsizei imageSize,
3637 GET_CURRENT_CONTEXT(ctx);
3638 teximage(ctx, GL_TRUE, 1, target, level, internalFormat,
3639 width, 1, 1, border, GL_NONE, GL_NONE, imageSize, data);
3644 _mesa_CompressedTexImage2DARB(GLenum target, GLint level,
3645 GLenum internalFormat, GLsizei width,
3646 GLsizei height, GLint border, GLsizei imageSize,
3649 GET_CURRENT_CONTEXT(ctx);
3650 teximage(ctx, GL_TRUE, 2, target, level, internalFormat,
3651 width, height, 1, border, GL_NONE, GL_NONE, imageSize, data);
3656 _mesa_CompressedTexImage3DARB(GLenum target, GLint level,
3657 GLenum internalFormat, GLsizei width,
3658 GLsizei height, GLsizei depth, GLint border,
3659 GLsizei imageSize, const GLvoid *data)
3661 GET_CURRENT_CONTEXT(ctx);
3662 teximage(ctx, GL_TRUE, 3, target, level, internalFormat,
3663 width, height, depth, border, GL_NONE, GL_NONE, imageSize, data);
3668 * Common helper for glCompressedTexSubImage1/2/3D().
3671 compressed_tex_sub_image(GLuint dims, GLenum target, GLint level,
3672 GLint xoffset, GLint yoffset, GLint zoffset,
3673 GLsizei width, GLsizei height, GLsizei depth,
3674 GLenum format, GLsizei imageSize, const GLvoid *data)
3676 struct gl_texture_object *texObj;
3677 struct gl_texture_image *texImage;
3678 GET_CURRENT_CONTEXT(ctx);
3679 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3681 if (compressed_subtexture_error_check(ctx, dims, target, level,
3682 xoffset, yoffset, zoffset,
3683 width, height, depth,
3684 format, imageSize)) {
3688 texObj = _mesa_get_current_tex_object(ctx, target);
3690 _mesa_lock_texture(ctx, texObj);
3692 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3695 if (width > 0 && height > 0 && depth > 0) {
3696 ctx->Driver.CompressedTexSubImage(ctx, dims, texImage,
3697 xoffset, yoffset, zoffset,
3698 width, height, depth,
3699 format, imageSize, data);
3701 check_gen_mipmap(ctx, target, texObj, level);
3703 ctx->NewState |= _NEW_TEXTURE;
3706 _mesa_unlock_texture(ctx, texObj);
3711 _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
3712 GLsizei width, GLenum format,
3713 GLsizei imageSize, const GLvoid *data)
3715 compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1,
3716 format, imageSize, data);
3721 _mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
3722 GLint yoffset, GLsizei width, GLsizei height,
3723 GLenum format, GLsizei imageSize,
3726 compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0,
3727 width, height, 1, format, imageSize, data);
3732 _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
3733 GLint yoffset, GLint zoffset, GLsizei width,
3734 GLsizei height, GLsizei depth, GLenum format,
3735 GLsizei imageSize, const GLvoid *data)
3737 compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset,
3738 width, height, depth, format, imageSize, data);
3742 get_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat)
3744 switch (internalFormat) {
3746 return MESA_FORMAT_A8;
3748 return MESA_FORMAT_A16;
3749 case GL_ALPHA16F_ARB:
3750 return MESA_FORMAT_ALPHA_FLOAT16;
3751 case GL_ALPHA32F_ARB:
3752 return MESA_FORMAT_ALPHA_FLOAT32;
3753 case GL_ALPHA8I_EXT:
3754 return MESA_FORMAT_ALPHA_INT8;
3755 case GL_ALPHA16I_EXT:
3756 return MESA_FORMAT_ALPHA_INT16;
3757 case GL_ALPHA32I_EXT:
3758 return MESA_FORMAT_ALPHA_INT32;
3759 case GL_ALPHA8UI_EXT:
3760 return MESA_FORMAT_ALPHA_UINT8;
3761 case GL_ALPHA16UI_EXT:
3762 return MESA_FORMAT_ALPHA_UINT16;
3763 case GL_ALPHA32UI_EXT:
3764 return MESA_FORMAT_ALPHA_UINT32;
3766 return MESA_FORMAT_L8;
3767 case GL_LUMINANCE16:
3768 return MESA_FORMAT_L16;
3769 case GL_LUMINANCE16F_ARB:
3770 return MESA_FORMAT_LUMINANCE_FLOAT16;
3771 case GL_LUMINANCE32F_ARB:
3772 return MESA_FORMAT_LUMINANCE_FLOAT32;
3773 case GL_LUMINANCE8I_EXT:
3774 return MESA_FORMAT_LUMINANCE_INT8;
3775 case GL_LUMINANCE16I_EXT:
3776 return MESA_FORMAT_LUMINANCE_INT16;
3777 case GL_LUMINANCE32I_EXT:
3778 return MESA_FORMAT_LUMINANCE_INT32;
3779 case GL_LUMINANCE8UI_EXT:
3780 return MESA_FORMAT_LUMINANCE_UINT8;
3781 case GL_LUMINANCE16UI_EXT:
3782 return MESA_FORMAT_LUMINANCE_UINT16;
3783 case GL_LUMINANCE32UI_EXT:
3784 return MESA_FORMAT_LUMINANCE_UINT32;
3785 case GL_LUMINANCE8_ALPHA8:
3786 return MESA_FORMAT_AL88;
3787 case GL_LUMINANCE16_ALPHA16:
3788 return MESA_FORMAT_AL1616;
3789 case GL_LUMINANCE_ALPHA16F_ARB:
3790 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16;
3791 case GL_LUMINANCE_ALPHA32F_ARB:
3792 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32;
3793 case GL_LUMINANCE_ALPHA8I_EXT:
3794 return MESA_FORMAT_LUMINANCE_ALPHA_INT8;
3795 case GL_LUMINANCE_ALPHA16I_EXT:
3796 return MESA_FORMAT_LUMINANCE_ALPHA_INT8;
3797 case GL_LUMINANCE_ALPHA32I_EXT:
3798 return MESA_FORMAT_LUMINANCE_ALPHA_INT16;
3799 case GL_LUMINANCE_ALPHA8UI_EXT:
3800 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8;
3801 case GL_LUMINANCE_ALPHA16UI_EXT:
3802 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16;
3803 case GL_LUMINANCE_ALPHA32UI_EXT:
3804 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32;
3806 return MESA_FORMAT_I8;
3807 case GL_INTENSITY16:
3808 return MESA_FORMAT_I16;
3809 case GL_INTENSITY16F_ARB:
3810 return MESA_FORMAT_INTENSITY_FLOAT16;
3811 case GL_INTENSITY32F_ARB:
3812 return MESA_FORMAT_INTENSITY_FLOAT32;
3813 case GL_INTENSITY8I_EXT:
3814 return MESA_FORMAT_INTENSITY_INT8;
3815 case GL_INTENSITY16I_EXT:
3816 return MESA_FORMAT_INTENSITY_INT16;
3817 case GL_INTENSITY32I_EXT:
3818 return MESA_FORMAT_INTENSITY_INT32;
3819 case GL_INTENSITY8UI_EXT:
3820 return MESA_FORMAT_INTENSITY_UINT8;
3821 case GL_INTENSITY16UI_EXT:
3822 return MESA_FORMAT_INTENSITY_UINT16;
3823 case GL_INTENSITY32UI_EXT:
3824 return MESA_FORMAT_INTENSITY_UINT32;
3826 return MESA_FORMAT_RGBA8888_REV;
3828 return MESA_FORMAT_RGBA_16;
3829 case GL_RGBA16F_ARB:
3830 return MESA_FORMAT_RGBA_FLOAT16;
3831 case GL_RGBA32F_ARB:
3832 return MESA_FORMAT_RGBA_FLOAT32;
3834 return MESA_FORMAT_RGBA_INT8;
3835 case GL_RGBA16I_EXT:
3836 return MESA_FORMAT_RGBA_INT16;
3837 case GL_RGBA32I_EXT:
3838 return MESA_FORMAT_RGBA_INT32;
3839 case GL_RGBA8UI_EXT:
3840 return MESA_FORMAT_RGBA_UINT8;
3841 case GL_RGBA16UI_EXT:
3842 return MESA_FORMAT_RGBA_UINT16;
3843 case GL_RGBA32UI_EXT:
3844 return MESA_FORMAT_RGBA_UINT32;
3847 return MESA_FORMAT_GR88;
3849 return MESA_FORMAT_RG1616;
3851 return MESA_FORMAT_RG_FLOAT16;
3853 return MESA_FORMAT_RG_FLOAT32;
3855 return MESA_FORMAT_RG_INT8;
3857 return MESA_FORMAT_RG_INT16;
3859 return MESA_FORMAT_RG_INT32;
3861 return MESA_FORMAT_RG_UINT8;
3863 return MESA_FORMAT_RG_UINT16;
3865 return MESA_FORMAT_RG_UINT32;
3868 return MESA_FORMAT_R8;
3870 return MESA_FORMAT_R16;
3872 return MESA_FORMAT_R_FLOAT16;
3874 return MESA_FORMAT_R_FLOAT32;
3876 return MESA_FORMAT_R_INT8;
3878 return MESA_FORMAT_R_INT16;
3880 return MESA_FORMAT_R_INT32;
3882 return MESA_FORMAT_R_UINT8;
3884 return MESA_FORMAT_R_UINT16;
3886 return MESA_FORMAT_R_UINT32;
3889 return MESA_FORMAT_NONE;
3894 validate_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat)
3896 gl_format format = get_texbuffer_format(ctx, internalFormat);
3899 if (format == MESA_FORMAT_NONE)
3900 return MESA_FORMAT_NONE;
3902 datatype = _mesa_get_format_datatype(format);
3903 if (datatype == GL_FLOAT && !ctx->Extensions.ARB_texture_float)
3904 return MESA_FORMAT_NONE;
3906 if (datatype == GL_HALF_FLOAT && !ctx->Extensions.ARB_half_float_pixel)
3907 return MESA_FORMAT_NONE;
3909 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make
3910 * any mention of R/RG formats, but they appear in the GL 3.1 core
3913 if (ctx->Version <= 30) {
3914 GLenum base_format = _mesa_get_format_base_format(format);
3916 if (base_format == GL_R || base_format == GL_RG)
3917 return MESA_FORMAT_NONE;
3923 /** GL_ARB_texture_buffer_object */
3925 _mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer)
3927 struct gl_texture_object *texObj;
3928 struct gl_buffer_object *bufObj;
3931 GET_CURRENT_CONTEXT(ctx);
3932 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3934 if (!(ctx->Extensions.ARB_texture_buffer_object
3935 && _mesa_is_desktop_gl(ctx))) {
3936 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer");
3940 if (target != GL_TEXTURE_BUFFER_ARB) {
3941 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(target)");
3945 format = validate_texbuffer_format(ctx, internalFormat);
3946 if (format == MESA_FORMAT_NONE) {
3947 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(internalFormat 0x%x)",
3952 bufObj = _mesa_lookup_bufferobj(ctx, buffer);
3953 if (buffer && !bufObj) {
3954 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer(buffer %u)", buffer);
3958 texObj = _mesa_get_current_tex_object(ctx, target);
3960 _mesa_lock_texture(ctx, texObj);
3962 _mesa_reference_buffer_object(ctx, &texObj->BufferObject, bufObj);
3963 texObj->BufferObjectFormat = internalFormat;
3964 texObj->_BufferObjectFormat = format;
3966 _mesa_unlock_texture(ctx, texObj);