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"
52 * State changes which we care about for glCopyTex[Sub]Image() calls.
53 * In particular, we care about pixel transfer state and buffer state
54 * (such as glReadBuffer to make sure we read from the right renderbuffer).
56 #define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
61 * We allocate texture memory on 512-byte boundaries so we can use MMX/SSE
65 _mesa_alloc_texmemory(GLsizei bytes)
67 return _mesa_align_malloc(bytes, 512);
72 * Free texture memory allocated with _mesa_alloc_texmemory()
75 _mesa_free_texmemory(void *m)
82 * Return the simple base format for a given internal texture format.
83 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
85 * \param ctx GL context.
86 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
88 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
89 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
91 * This is the format which is used during texture application (i.e. the
92 * texture format and env mode determine the arithmetic used.
94 * XXX this could be static
97 _mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat )
99 switch (internalFormat) {
114 case GL_LUMINANCE_ALPHA:
115 case GL_LUMINANCE4_ALPHA4:
116 case GL_LUMINANCE6_ALPHA2:
117 case GL_LUMINANCE8_ALPHA8:
118 case GL_LUMINANCE12_ALPHA4:
119 case GL_LUMINANCE12_ALPHA12:
120 case GL_LUMINANCE16_ALPHA16:
121 return GL_LUMINANCE_ALPHA;
152 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
154 if (ctx->API != API_OPENGL) {
155 switch (internalFormat) {
163 if (ctx->Extensions.ARB_depth_texture) {
164 switch (internalFormat) {
165 case GL_DEPTH_COMPONENT:
166 case GL_DEPTH_COMPONENT16:
167 case GL_DEPTH_COMPONENT24:
168 case GL_DEPTH_COMPONENT32:
169 return GL_DEPTH_COMPONENT;
175 switch (internalFormat) {
176 case GL_COMPRESSED_ALPHA:
178 case GL_COMPRESSED_LUMINANCE:
180 case GL_COMPRESSED_LUMINANCE_ALPHA:
181 return GL_LUMINANCE_ALPHA;
182 case GL_COMPRESSED_INTENSITY:
184 case GL_COMPRESSED_RGB:
186 case GL_COMPRESSED_RGBA:
192 if (ctx->Extensions.TDFX_texture_compression_FXT1) {
193 switch (internalFormat) {
194 case GL_COMPRESSED_RGB_FXT1_3DFX:
196 case GL_COMPRESSED_RGBA_FXT1_3DFX:
203 if (ctx->Extensions.EXT_texture_compression_s3tc) {
204 switch (internalFormat) {
205 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
207 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
208 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
209 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
216 if (ctx->Extensions.S3_s3tc) {
217 switch (internalFormat) {
229 if (ctx->Extensions.MESA_ycbcr_texture) {
230 if (internalFormat == GL_YCBCR_MESA)
231 return GL_YCBCR_MESA;
234 if (ctx->Extensions.ARB_texture_float) {
235 switch (internalFormat) {
236 case GL_ALPHA16F_ARB:
237 case GL_ALPHA32F_ARB:
245 case GL_INTENSITY16F_ARB:
246 case GL_INTENSITY32F_ARB:
248 case GL_LUMINANCE16F_ARB:
249 case GL_LUMINANCE32F_ARB:
251 case GL_LUMINANCE_ALPHA16F_ARB:
252 case GL_LUMINANCE_ALPHA32F_ARB:
253 return GL_LUMINANCE_ALPHA;
259 if (ctx->Extensions.ATI_envmap_bumpmap) {
260 switch (internalFormat) {
269 if (ctx->Extensions.EXT_texture_snorm) {
270 switch (internalFormat) {
285 case GL_RGBA16_SNORM:
288 case GL_ALPHA8_SNORM:
289 case GL_ALPHA16_SNORM:
291 case GL_LUMINANCE_SNORM:
292 case GL_LUMINANCE8_SNORM:
293 case GL_LUMINANCE16_SNORM:
295 case GL_LUMINANCE_ALPHA_SNORM:
296 case GL_LUMINANCE8_ALPHA8_SNORM:
297 case GL_LUMINANCE16_ALPHA16_SNORM:
298 return GL_LUMINANCE_ALPHA;
299 case GL_INTENSITY_SNORM:
300 case GL_INTENSITY8_SNORM:
301 case GL_INTENSITY16_SNORM:
308 if (ctx->Extensions.EXT_packed_depth_stencil) {
309 switch (internalFormat) {
310 case GL_DEPTH_STENCIL_EXT:
311 case GL_DEPTH24_STENCIL8_EXT:
312 return GL_DEPTH_STENCIL_EXT;
318 #if FEATURE_EXT_texture_sRGB
319 if (ctx->Extensions.EXT_texture_sRGB) {
320 switch (internalFormat) {
323 case GL_COMPRESSED_SRGB_EXT:
324 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
326 case GL_SRGB_ALPHA_EXT:
327 case GL_SRGB8_ALPHA8_EXT:
328 case GL_COMPRESSED_SRGB_ALPHA_EXT:
329 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
330 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
331 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
333 case GL_SLUMINANCE_ALPHA_EXT:
334 case GL_SLUMINANCE8_ALPHA8_EXT:
335 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
336 return GL_LUMINANCE_ALPHA;
337 case GL_SLUMINANCE_EXT:
338 case GL_SLUMINANCE8_EXT:
339 case GL_COMPRESSED_SLUMINANCE_EXT:
345 #endif /* FEATURE_EXT_texture_sRGB */
347 if (ctx->Extensions.EXT_texture_integer) {
348 switch (internalFormat) {
350 case GL_RGBA16UI_EXT:
351 case GL_RGBA32UI_EXT:
363 case GL_ALPHA8UI_EXT:
364 case GL_ALPHA16UI_EXT:
365 case GL_ALPHA32UI_EXT:
367 case GL_ALPHA16I_EXT:
368 case GL_ALPHA32I_EXT:
370 case GL_INTENSITY8UI_EXT:
371 case GL_INTENSITY16UI_EXT:
372 case GL_INTENSITY32UI_EXT:
373 case GL_INTENSITY8I_EXT:
374 case GL_INTENSITY16I_EXT:
375 case GL_INTENSITY32I_EXT:
377 case GL_LUMINANCE8UI_EXT:
378 case GL_LUMINANCE16UI_EXT:
379 case GL_LUMINANCE32UI_EXT:
380 case GL_LUMINANCE8I_EXT:
381 case GL_LUMINANCE16I_EXT:
382 case GL_LUMINANCE32I_EXT:
384 case GL_LUMINANCE_ALPHA8UI_EXT:
385 case GL_LUMINANCE_ALPHA16UI_EXT:
386 case GL_LUMINANCE_ALPHA32UI_EXT:
387 case GL_LUMINANCE_ALPHA8I_EXT:
388 case GL_LUMINANCE_ALPHA16I_EXT:
389 case GL_LUMINANCE_ALPHA32I_EXT:
390 return GL_LUMINANCE_ALPHA;
396 if (ctx->Extensions.ARB_texture_rg) {
397 switch (internalFormat) {
399 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
401 if (!ctx->Extensions.ARB_half_float_pixel)
405 if (!ctx->Extensions.ARB_texture_float)
414 if (!ctx->Extensions.EXT_texture_integer)
420 case GL_COMPRESSED_RED:
424 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
426 if (!ctx->Extensions.ARB_half_float_pixel)
430 if (!ctx->Extensions.ARB_texture_float)
439 if (!ctx->Extensions.EXT_texture_integer)
445 case GL_COMPRESSED_RG:
452 if (ctx->Extensions.EXT_texture_shared_exponent) {
453 switch (internalFormat) {
461 if (ctx->Extensions.EXT_packed_float) {
462 switch (internalFormat) {
463 case GL_R11F_G11F_B10F_EXT:
470 if (ctx->Extensions.ARB_depth_buffer_float) {
471 switch (internalFormat) {
472 case GL_DEPTH_COMPONENT32F:
473 return GL_DEPTH_COMPONENT;
474 case GL_DEPTH32F_STENCIL8:
475 return GL_DEPTH_STENCIL;
481 if (ctx->Extensions.ARB_texture_compression_rgtc) {
482 switch (internalFormat) {
483 case GL_COMPRESSED_RED_RGTC1:
484 case GL_COMPRESSED_SIGNED_RED_RGTC1:
486 case GL_COMPRESSED_RG_RGTC2:
487 case GL_COMPRESSED_SIGNED_RG_RGTC2:
494 if (ctx->Extensions.EXT_texture_compression_latc) {
495 switch (internalFormat) {
496 case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
497 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
499 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
500 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
501 return GL_LUMINANCE_ALPHA;
507 if (ctx->Extensions.ATI_texture_compression_3dc) {
508 switch (internalFormat) {
509 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
510 return GL_LUMINANCE_ALPHA;
516 if (ctx->API == API_OPENGLES) {
517 switch (internalFormat) {
518 case GL_PALETTE4_RGB8_OES:
519 case GL_PALETTE4_R5_G6_B5_OES:
520 case GL_PALETTE8_RGB8_OES:
521 case GL_PALETTE8_R5_G6_B5_OES:
523 case GL_PALETTE4_RGBA8_OES:
524 case GL_PALETTE8_RGB5_A1_OES:
525 case GL_PALETTE4_RGBA4_OES:
526 case GL_PALETTE4_RGB5_A1_OES:
527 case GL_PALETTE8_RGBA8_OES:
528 case GL_PALETTE8_RGBA4_OES:
535 return -1; /* error */
540 * For cube map faces, return a face index in [0,5].
541 * For other targets return 0;
544 _mesa_tex_target_to_face(GLenum target)
546 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
547 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)
548 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
556 * Store a gl_texture_image pointer in a gl_texture_object structure
557 * according to the target and level parameters.
559 * \param tObj texture object.
560 * \param target texture target.
561 * \param level image level.
562 * \param texImage texture image.
565 _mesa_set_tex_image(struct gl_texture_object *tObj,
566 GLenum target, GLint level,
567 struct gl_texture_image *texImage)
569 const GLuint face = _mesa_tex_target_to_face(target);
573 ASSERT(target != GL_TEXTURE_RECTANGLE_NV || level == 0);
575 tObj->Image[face][level] = texImage;
577 /* Set the 'back' pointer */
578 texImage->TexObject = tObj;
579 texImage->Level = level;
580 texImage->Face = face;
585 * Allocate a texture image structure.
587 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
590 * \return a pointer to gl_texture_image struct with all fields initialized to
593 struct gl_texture_image *
594 _mesa_new_texture_image( struct gl_context *ctx )
597 return CALLOC_STRUCT(gl_texture_image);
602 * Free texture image data.
603 * This function is a fallback called via ctx->Driver.FreeTextureImageBuffer().
605 * \param texImage texture image.
607 * Free the texture image data if it's not marked as client data.
610 _mesa_free_texture_image_data(struct gl_context *ctx,
611 struct gl_texture_image *texImage)
615 if (texImage->Data) {
616 /* free the old texture data */
617 _mesa_free_texmemory(texImage->Data);
620 texImage->Data = NULL;
625 * Free a gl_texture_image and associated data.
626 * This function is a fallback called via ctx->Driver.DeleteTextureImage().
628 * \param texImage texture image.
630 * Free the texture image structure and the associated image data.
633 _mesa_delete_texture_image(struct gl_context *ctx,
634 struct gl_texture_image *texImage)
636 /* Free texImage->Data and/or any other driver-specific texture
639 ASSERT(ctx->Driver.FreeTextureImageBuffer);
640 ctx->Driver.FreeTextureImageBuffer( ctx, texImage );
642 ASSERT(texImage->Data == NULL);
643 if (texImage->ImageOffsets)
644 free(texImage->ImageOffsets);
650 * Test if a target is a proxy target.
652 * \param target texture target.
654 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
657 _mesa_is_proxy_texture(GLenum target)
659 /* NUM_TEXTURE_TARGETS should match number of terms below,
660 * except there's no proxy for GL_TEXTURE_BUFFER.
662 assert(NUM_TEXTURE_TARGETS == 8);
664 return (target == GL_PROXY_TEXTURE_1D ||
665 target == GL_PROXY_TEXTURE_2D ||
666 target == GL_PROXY_TEXTURE_3D ||
667 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
668 target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
669 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
670 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT);
675 * Return the proxy target which corresponds to the given texture target
678 get_proxy_target(GLenum target)
682 case GL_PROXY_TEXTURE_1D:
683 return GL_PROXY_TEXTURE_1D;
685 case GL_PROXY_TEXTURE_2D:
686 return GL_PROXY_TEXTURE_2D;
688 case GL_PROXY_TEXTURE_3D:
689 return GL_PROXY_TEXTURE_3D;
690 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
691 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
692 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
693 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
694 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
695 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
696 case GL_TEXTURE_CUBE_MAP_ARB:
697 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
698 return GL_PROXY_TEXTURE_CUBE_MAP_ARB;
699 case GL_TEXTURE_RECTANGLE_NV:
700 case GL_PROXY_TEXTURE_RECTANGLE_NV:
701 return GL_PROXY_TEXTURE_RECTANGLE_NV;
702 case GL_TEXTURE_1D_ARRAY_EXT:
703 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
704 return GL_PROXY_TEXTURE_1D_ARRAY_EXT;
705 case GL_TEXTURE_2D_ARRAY_EXT:
706 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
707 return GL_PROXY_TEXTURE_2D_ARRAY_EXT;
709 _mesa_problem(NULL, "unexpected target in get_proxy_target()");
716 * Get the texture object that corresponds to the target of the given
717 * texture unit. The target should have already been checked for validity.
719 * \param ctx GL context.
720 * \param texUnit texture unit.
721 * \param target texture target.
723 * \return pointer to the texture object on success, or NULL on failure.
725 struct gl_texture_object *
726 _mesa_select_tex_object(struct gl_context *ctx,
727 const struct gl_texture_unit *texUnit,
730 const GLboolean arrayTex = (ctx->Extensions.MESA_texture_array ||
731 ctx->Extensions.EXT_texture_array);
735 return texUnit->CurrentTex[TEXTURE_1D_INDEX];
736 case GL_PROXY_TEXTURE_1D:
737 return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
739 return texUnit->CurrentTex[TEXTURE_2D_INDEX];
740 case GL_PROXY_TEXTURE_2D:
741 return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
743 return texUnit->CurrentTex[TEXTURE_3D_INDEX];
744 case GL_PROXY_TEXTURE_3D:
745 return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
746 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
747 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
748 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
749 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
750 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
751 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
752 case GL_TEXTURE_CUBE_MAP_ARB:
753 return ctx->Extensions.ARB_texture_cube_map
754 ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL;
755 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
756 return ctx->Extensions.ARB_texture_cube_map
757 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL;
758 case GL_TEXTURE_RECTANGLE_NV:
759 return ctx->Extensions.NV_texture_rectangle
760 ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL;
761 case GL_PROXY_TEXTURE_RECTANGLE_NV:
762 return ctx->Extensions.NV_texture_rectangle
763 ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL;
764 case GL_TEXTURE_1D_ARRAY_EXT:
765 return arrayTex ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
766 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
767 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
768 case GL_TEXTURE_2D_ARRAY_EXT:
769 return arrayTex ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
770 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
771 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
772 case GL_TEXTURE_BUFFER:
773 return ctx->Extensions.ARB_texture_buffer_object
774 ? texUnit->CurrentTex[TEXTURE_BUFFER_INDEX] : NULL;
776 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
783 * Return pointer to texture object for given target on current texture unit.
785 struct gl_texture_object *
786 _mesa_get_current_tex_object(struct gl_context *ctx, GLenum target)
788 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
789 return _mesa_select_tex_object(ctx, texUnit, target);
794 * Get a texture image pointer from a texture object, given a texture
795 * target and mipmap level. The target and level parameters should
796 * have already been error-checked.
798 * \param ctx GL context.
799 * \param texObj texture unit.
800 * \param target texture target.
801 * \param level image level.
803 * \return pointer to the texture image structure, or NULL on failure.
805 struct gl_texture_image *
806 _mesa_select_tex_image(struct gl_context *ctx,
807 const struct gl_texture_object *texObj,
808 GLenum target, GLint level)
810 const GLuint face = _mesa_tex_target_to_face(target);
814 ASSERT(level < MAX_TEXTURE_LEVELS);
816 return texObj->Image[face][level];
821 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
822 * it and install it. Only return NULL if passed a bad parameter or run
825 struct gl_texture_image *
826 _mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj,
827 GLenum target, GLint level)
829 struct gl_texture_image *texImage;
834 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
836 texImage = ctx->Driver.NewTextureImage(ctx);
838 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
842 _mesa_set_tex_image(texObj, target, level, texImage);
850 * Return pointer to the specified proxy texture image.
851 * Note that proxy textures are per-context, not per-texture unit.
852 * \return pointer to texture image or NULL if invalid target, invalid
853 * level, or out of memory.
855 struct gl_texture_image *
856 _mesa_get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level)
858 struct gl_texture_image *texImage;
865 case GL_PROXY_TEXTURE_1D:
866 if (level >= ctx->Const.MaxTextureLevels)
868 texIndex = TEXTURE_1D_INDEX;
870 case GL_PROXY_TEXTURE_2D:
871 if (level >= ctx->Const.MaxTextureLevels)
873 texIndex = TEXTURE_2D_INDEX;
875 case GL_PROXY_TEXTURE_3D:
876 if (level >= ctx->Const.Max3DTextureLevels)
878 texIndex = TEXTURE_3D_INDEX;
880 case GL_PROXY_TEXTURE_CUBE_MAP:
881 if (level >= ctx->Const.MaxCubeTextureLevels)
883 texIndex = TEXTURE_CUBE_INDEX;
885 case GL_PROXY_TEXTURE_RECTANGLE_NV:
888 texIndex = TEXTURE_RECT_INDEX;
890 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
891 if (level >= ctx->Const.MaxTextureLevels)
893 texIndex = TEXTURE_1D_ARRAY_INDEX;
895 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
896 if (level >= ctx->Const.MaxTextureLevels)
898 texIndex = TEXTURE_2D_ARRAY_INDEX;
904 texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level];
906 texImage = ctx->Driver.NewTextureImage(ctx);
908 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
911 ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage;
912 /* Set the 'back' pointer */
913 texImage->TexObject = ctx->Texture.ProxyTex[texIndex];
920 * Get the maximum number of allowed mipmap levels.
922 * \param ctx GL context.
923 * \param target texture target.
925 * \return the maximum number of allowed mipmap levels for the given
926 * texture target, or zero if passed a bad target.
931 _mesa_max_texture_levels(struct gl_context *ctx, GLenum target)
935 case GL_PROXY_TEXTURE_1D:
937 case GL_PROXY_TEXTURE_2D:
938 return ctx->Const.MaxTextureLevels;
940 case GL_PROXY_TEXTURE_3D:
941 return ctx->Const.Max3DTextureLevels;
942 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
943 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
944 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
945 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
946 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
947 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
948 case GL_TEXTURE_CUBE_MAP_ARB:
949 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
950 return ctx->Extensions.ARB_texture_cube_map
951 ? ctx->Const.MaxCubeTextureLevels : 0;
952 case GL_TEXTURE_RECTANGLE_NV:
953 case GL_PROXY_TEXTURE_RECTANGLE_NV:
954 return ctx->Extensions.NV_texture_rectangle ? 1 : 0;
955 case GL_TEXTURE_1D_ARRAY_EXT:
956 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
957 case GL_TEXTURE_2D_ARRAY_EXT:
958 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
959 return (ctx->Extensions.MESA_texture_array ||
960 ctx->Extensions.EXT_texture_array)
961 ? ctx->Const.MaxTextureLevels : 0;
962 case GL_TEXTURE_BUFFER:
965 return 0; /* bad target */
971 * Return number of dimensions per mipmap level for the given texture target.
974 _mesa_get_texture_dimensions(GLenum target)
978 case GL_PROXY_TEXTURE_1D:
981 case GL_TEXTURE_RECTANGLE:
982 case GL_TEXTURE_CUBE_MAP:
983 case GL_PROXY_TEXTURE_2D:
984 case GL_PROXY_TEXTURE_RECTANGLE:
985 case GL_PROXY_TEXTURE_CUBE_MAP:
986 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
987 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
988 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
989 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
990 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
991 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
992 case GL_TEXTURE_1D_ARRAY:
993 case GL_PROXY_TEXTURE_1D_ARRAY:
996 case GL_PROXY_TEXTURE_3D:
997 case GL_TEXTURE_2D_ARRAY:
998 case GL_PROXY_TEXTURE_2D_ARRAY:
1000 case GL_TEXTURE_BUFFER:
1003 _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()",
1012 #if 000 /* not used anymore */
1014 * glTexImage[123]D can accept a NULL image pointer. In this case we
1015 * create a texture image with unspecified image contents per the OpenGL
1019 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
1021 const GLint components = _mesa_components_in_format(format);
1022 const GLint numPixels = width * height * depth;
1023 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
1027 * Let's see if anyone finds this. If glTexImage2D() is called with
1028 * a NULL image pointer then load the texture image with something
1029 * interesting instead of leaving it indeterminate.
1032 static const char message[8][32] = {
1033 " X X XXXXX XXX X ",
1034 " XX XX X X X X X ",
1036 " X X XXXX XXX XXXXX ",
1039 " X X XXXXX XXX X X ",
1043 GLubyte *imgPtr = data;
1045 for (h = 0; h < depth; h++) {
1046 for (i = 0; i < height; i++) {
1047 GLint srcRow = 7 - (i % 8);
1048 for (j = 0; j < width; j++) {
1049 GLint srcCol = j % 32;
1050 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
1051 for (k = 0; k < components; k++) {
1067 * Reset the fields of a gl_texture_image struct to zero.
1069 * \param img texture image structure.
1071 * This is called when a proxy texture test fails, we set all the
1072 * image members (except DriverData) to zero.
1073 * It's also used in glTexImage[123]D as a safeguard to be sure all
1074 * required fields get initialized properly by the Driver.TexImage[123]D
1078 clear_teximage_fields(struct gl_texture_image *img)
1081 img->_BaseFormat = 0;
1082 img->InternalFormat = 0;
1088 if (img->ImageOffsets) {
1089 free(img->ImageOffsets);
1090 img->ImageOffsets = NULL;
1096 img->HeightLog2 = 0;
1099 img->TexFormat = MESA_FORMAT_NONE;
1104 * Initialize basic fields of the gl_texture_image struct.
1106 * \param ctx GL context.
1107 * \param target texture target (GL_TEXTURE_1D, GL_TEXTURE_RECTANGLE, etc).
1108 * \param img texture image structure to be initialized.
1109 * \param width image width.
1110 * \param height image height.
1111 * \param depth image depth.
1112 * \param border image border.
1113 * \param internalFormat internal format.
1114 * \param format the actual hardware format (one of MESA_FORMAT_*)
1116 * Fills in the fields of \p img with the given information.
1117 * Note: width, height and depth include the border.
1120 _mesa_init_teximage_fields(struct gl_context *ctx, GLenum target,
1121 struct gl_texture_image *img,
1122 GLsizei width, GLsizei height, GLsizei depth,
1123 GLint border, GLenum internalFormat,
1130 ASSERT(height >= 0);
1133 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
1134 ASSERT(img->_BaseFormat > 0);
1135 img->InternalFormat = internalFormat;
1136 img->Border = border;
1138 img->Height = height;
1141 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
1142 img->WidthLog2 = _mesa_logbase2(img->Width2);
1144 if (height == 1) { /* 1-D texture */
1146 img->HeightLog2 = 0;
1149 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1150 img->HeightLog2 = _mesa_logbase2(img->Height2);
1153 if (depth == 1) { /* 2-D texture */
1158 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
1159 img->DepthLog2 = _mesa_logbase2(img->Depth2);
1162 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
1164 /* RowStride and ImageOffsets[] describe how to address texels in 'Data' */
1165 img->RowStride = width;
1166 /* Allocate the ImageOffsets array and initialize to typical values.
1167 * We allocate the array for 1D/2D textures too in order to avoid special-
1168 * case code in the texstore routines.
1170 if (img->ImageOffsets)
1171 free(img->ImageOffsets);
1172 img->ImageOffsets = (GLuint *) malloc(depth * sizeof(GLuint));
1173 for (i = 0; i < depth; i++) {
1174 img->ImageOffsets[i] = i * width * height;
1177 img->TexFormat = format;
1182 * Free and clear fields of the gl_texture_image struct.
1184 * \param ctx GL context.
1185 * \param texImage texture image structure to be cleared.
1187 * After the call, \p texImage will have no data associated with it. Its
1188 * fields are cleared so that its parent object will test incomplete.
1191 _mesa_clear_texture_image(struct gl_context *ctx,
1192 struct gl_texture_image *texImage)
1194 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
1195 clear_teximage_fields(texImage);
1200 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1201 * level, width, height and depth against the ctx->Const limits for textures.
1203 * A hardware driver might override this function if, for example, the
1204 * max 3D texture size is 512x512x64 (i.e. not a cube).
1206 * Note that width, height, depth == 0 is not an error. However, a
1207 * texture with zero width/height/depth will be considered "incomplete"
1208 * and texturing will effectively be disabled.
1210 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1211 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1212 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1213 * \param level as passed to glTexImage
1214 * \param internalFormat as passed to glTexImage
1215 * \param format as passed to glTexImage
1216 * \param type as passed to glTexImage
1217 * \param width as passed to glTexImage
1218 * \param height as passed to glTexImage
1219 * \param depth as passed to glTexImage
1220 * \param border as passed to glTexImage
1221 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1224 _mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
1225 GLint internalFormat, GLenum format, GLenum type,
1226 GLint width, GLint height, GLint depth, GLint border)
1230 (void) internalFormat;
1235 case GL_PROXY_TEXTURE_1D:
1236 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1237 if (width < 2 * border || width > 2 + maxSize)
1239 if (level >= ctx->Const.MaxTextureLevels)
1241 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1242 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1247 case GL_PROXY_TEXTURE_2D:
1248 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1249 if (width < 2 * border || width > 2 + maxSize)
1251 if (height < 2 * border || height > 2 + maxSize)
1253 if (level >= ctx->Const.MaxTextureLevels)
1255 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1256 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1258 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1263 case GL_PROXY_TEXTURE_3D:
1264 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1265 if (width < 2 * border || width > 2 + maxSize)
1267 if (height < 2 * border || height > 2 + maxSize)
1269 if (depth < 2 * border || depth > 2 + maxSize)
1271 if (level >= ctx->Const.Max3DTextureLevels)
1273 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1274 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1276 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1278 if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border))
1283 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1284 maxSize = ctx->Const.MaxTextureRectSize;
1285 if (width < 0 || width > maxSize)
1287 if (height < 0 || height > maxSize)
1293 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1294 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1295 if (width < 2 * border || width > 2 + maxSize)
1297 if (height < 2 * border || height > 2 + maxSize)
1299 if (level >= ctx->Const.MaxCubeTextureLevels)
1301 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1302 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1304 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1309 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1310 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1311 if (width < 2 * border || width > 2 + maxSize)
1313 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers)
1315 if (level >= ctx->Const.MaxTextureLevels)
1317 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1318 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1323 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1324 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1325 if (width < 2 * border || width > 2 + maxSize)
1327 if (height < 2 * border || height > 2 + maxSize)
1329 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers)
1331 if (level >= ctx->Const.MaxTextureLevels)
1333 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1334 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1336 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1342 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
1349 * Check if the memory used by the texture would exceed the driver's limit.
1350 * This lets us support a max 3D texture size of 8K (for example) but
1351 * prevents allocating a full 8K x 8K x 8K texture.
1352 * XXX this could be rolled into the proxy texture size test (above) but
1353 * we don't have the actual texture internal format at that point.
1356 legal_texture_size(struct gl_context *ctx, gl_format format,
1357 GLint width, GLint height, GLint depth)
1359 uint64_t bytes = _mesa_format_image_size64(format, width, height, depth);
1360 uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */
1361 return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes;
1367 * Helper function to determine whether a target and specific compression
1368 * format are supported.
1371 target_can_be_compressed(const struct gl_context *ctx, GLenum target,
1374 (void) intFormat; /* not used yet */
1378 case GL_PROXY_TEXTURE_2D:
1379 return GL_TRUE; /* true for any compressed format so far */
1380 case GL_PROXY_TEXTURE_CUBE_MAP:
1381 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1382 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1383 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1384 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1385 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1386 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1387 return ctx->Extensions.ARB_texture_cube_map;
1388 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1389 case GL_TEXTURE_2D_ARRAY_EXT:
1390 return (ctx->Extensions.MESA_texture_array ||
1391 ctx->Extensions.EXT_texture_array);
1399 * Check if the given texture target value is legal for a
1400 * glTexImage1/2/3D call.
1403 legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target)
1409 case GL_PROXY_TEXTURE_1D:
1417 case GL_PROXY_TEXTURE_2D:
1419 case GL_PROXY_TEXTURE_CUBE_MAP:
1420 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1421 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1422 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1423 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1424 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1425 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1426 return ctx->Extensions.ARB_texture_cube_map;
1427 case GL_TEXTURE_RECTANGLE_NV:
1428 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1429 return ctx->Extensions.NV_texture_rectangle;
1430 case GL_TEXTURE_1D_ARRAY_EXT:
1431 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1432 return (ctx->Extensions.MESA_texture_array ||
1433 ctx->Extensions.EXT_texture_array);
1440 case GL_PROXY_TEXTURE_3D:
1442 case GL_TEXTURE_2D_ARRAY_EXT:
1443 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1444 return (ctx->Extensions.MESA_texture_array ||
1445 ctx->Extensions.EXT_texture_array);
1450 _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims);
1457 * Check if the given texture target value is legal for a
1458 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1459 * The difference compared to legal_teximage_target() above is that
1460 * proxy targets are not supported.
1463 legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target)
1467 return target == GL_TEXTURE_1D;
1472 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1473 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1474 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1475 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1476 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1477 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1478 return ctx->Extensions.ARB_texture_cube_map;
1479 case GL_TEXTURE_RECTANGLE_NV:
1480 return ctx->Extensions.NV_texture_rectangle;
1481 case GL_TEXTURE_1D_ARRAY_EXT:
1482 return (ctx->Extensions.MESA_texture_array ||
1483 ctx->Extensions.EXT_texture_array);
1491 case GL_TEXTURE_2D_ARRAY_EXT:
1492 return (ctx->Extensions.MESA_texture_array ||
1493 ctx->Extensions.EXT_texture_array);
1498 _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()",
1506 * Test the glTexImage[123]D() parameters for errors.
1508 * \param ctx GL context.
1509 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1510 * \param target texture target given by the user.
1511 * \param level image level given by the user.
1512 * \param internalFormat internal format given by the user.
1513 * \param format pixel data format given by the user.
1514 * \param type pixel data type given by the user.
1515 * \param width image width given by the user.
1516 * \param height image height given by the user.
1517 * \param depth image depth given by the user.
1518 * \param border image border given by the user.
1520 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1522 * Verifies each of the parameters against the constants specified in
1523 * __struct gl_contextRec::Const and the supported extensions, and according
1524 * to the OpenGL specification.
1527 texture_error_check( struct gl_context *ctx,
1528 GLuint dimensions, GLenum target,
1529 GLint level, GLint internalFormat,
1530 GLenum format, GLenum type,
1531 GLint width, GLint height,
1532 GLint depth, GLint border )
1534 const GLenum proxyTarget = get_proxy_target(target);
1535 const GLboolean isProxy = target == proxyTarget;
1536 GLboolean sizeOK = GL_TRUE;
1537 GLboolean colorFormat;
1539 /* Even though there are no color-index textures, we still have to support
1540 * uploading color-index data and remapping it to RGB via the
1541 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1543 const GLboolean indexFormat = (format == GL_COLOR_INDEX);
1545 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1546 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1548 _mesa_error(ctx, GL_INVALID_VALUE,
1549 "glTexImage%dD(level=%d)", dimensions, level);
1555 if (border < 0 || border > 1 ||
1556 ((target == GL_TEXTURE_RECTANGLE_NV ||
1557 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1559 _mesa_error(ctx, GL_INVALID_VALUE,
1560 "glTexImage%dD(border=%d)", dimensions, border);
1565 if (width < 0 || height < 0 || depth < 0) {
1567 _mesa_error(ctx, GL_INVALID_VALUE,
1568 "glTexImage%dD(width, height or depth < 0)", dimensions);
1573 /* Do this simple check before calling the TestProxyTexImage() function */
1574 if (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
1575 sizeOK = (width == height);
1579 * Use the proxy texture driver hook to see if the size/level/etc are
1582 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
1583 internalFormat, format,
1584 type, width, height,
1588 _mesa_error(ctx, GL_INVALID_VALUE,
1589 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1590 dimensions, level, width, height, depth);
1595 /* Check internalFormat */
1596 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1598 _mesa_error(ctx, GL_INVALID_VALUE,
1599 "glTexImage%dD(internalFormat=%s)",
1600 dimensions, _mesa_lookup_enum_by_nr(internalFormat));
1605 /* Check incoming image format and type */
1606 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1607 /* Normally, GL_INVALID_OPERATION is generated by a format/type
1608 * mismatch (see the 1.2 spec page 94, sec 3.6.4.). But with the
1609 * GL_EXT_texture_integer extension, some combinations should generate
1610 * GL_INVALID_ENUM instead (grr!).
1613 GLenum error = _mesa_is_integer_format(format)
1614 ? GL_INVALID_ENUM : GL_INVALID_OPERATION;
1615 _mesa_error(ctx, error,
1616 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1617 dimensions, format, type);
1622 /* make sure internal format and format basically agree */
1623 colorFormat = _mesa_is_color_format(format);
1624 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
1625 (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) ||
1626 (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) ||
1627 (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) ||
1628 (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) {
1630 _mesa_error(ctx, GL_INVALID_OPERATION,
1631 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1632 dimensions, internalFormat, format);
1636 /* additional checks for ycbcr textures */
1637 if (internalFormat == GL_YCBCR_MESA) {
1638 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1639 if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1640 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
1642 _mesa_snprintf(message, sizeof(message),
1643 "glTexImage%dD(format/type YCBCR mismatch", dimensions);
1644 _mesa_error(ctx, GL_INVALID_ENUM, "%s", message);
1645 return GL_TRUE; /* error */
1647 if (target != GL_TEXTURE_2D &&
1648 target != GL_PROXY_TEXTURE_2D &&
1649 target != GL_TEXTURE_RECTANGLE_NV &&
1650 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1652 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
1658 _mesa_snprintf(message, sizeof(message),
1659 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1660 dimensions, border);
1661 _mesa_error(ctx, GL_INVALID_VALUE, "%s", message);
1667 /* additional checks for depth textures */
1668 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
1669 /* Only 1D, 2D, rect and array textures supported, not 3D or cubes */
1670 if (target != GL_TEXTURE_1D &&
1671 target != GL_PROXY_TEXTURE_1D &&
1672 target != GL_TEXTURE_2D &&
1673 target != GL_PROXY_TEXTURE_2D &&
1674 target != GL_TEXTURE_1D_ARRAY &&
1675 target != GL_PROXY_TEXTURE_1D_ARRAY &&
1676 target != GL_TEXTURE_2D_ARRAY &&
1677 target != GL_PROXY_TEXTURE_2D_ARRAY &&
1678 target != GL_TEXTURE_RECTANGLE_ARB &&
1679 target != GL_PROXY_TEXTURE_RECTANGLE_ARB) {
1681 _mesa_error(ctx, GL_INVALID_ENUM,
1682 "glTexImage(target/internalFormat)");
1687 /* additional checks for compressed textures */
1688 if (_mesa_is_compressed_format(ctx, internalFormat)) {
1689 if (!target_can_be_compressed(ctx, target, internalFormat)) {
1691 _mesa_error(ctx, GL_INVALID_ENUM,
1692 "glTexImage%dD(target)", dimensions);
1697 _mesa_error(ctx, GL_INVALID_OPERATION,
1698 "glTexImage%dD(border!=0)", dimensions);
1704 /* additional checks for integer textures */
1705 if (ctx->Extensions.EXT_texture_integer &&
1706 (_mesa_is_integer_format(format) !=
1707 _mesa_is_integer_format(internalFormat))) {
1709 _mesa_error(ctx, GL_INVALID_OPERATION,
1710 "glTexImage%dD(integer/non-integer format mismatch)",
1716 /* if we get here, the parameters are OK */
1722 * Test glTexSubImage[123]D() parameters for errors.
1724 * \param ctx GL context.
1725 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1726 * \param target texture target given by the user.
1727 * \param level image level given by the user.
1728 * \param xoffset sub-image x offset given by the user.
1729 * \param yoffset sub-image y offset given by the user.
1730 * \param zoffset sub-image z offset given by the user.
1731 * \param format pixel data format given by the user.
1732 * \param type pixel data type given by the user.
1733 * \param width image width given by the user.
1734 * \param height image height given by the user.
1735 * \param depth image depth given by the user.
1737 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1739 * Verifies each of the parameters against the constants specified in
1740 * __struct gl_contextRec::Const and the supported extensions, and according
1741 * to the OpenGL specification.
1744 subtexture_error_check( struct gl_context *ctx, GLuint dimensions,
1745 GLenum target, GLint level,
1746 GLint xoffset, GLint yoffset, GLint zoffset,
1747 GLint width, GLint height, GLint depth,
1748 GLenum format, GLenum type )
1750 /* Basic level check */
1751 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1752 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
1756 /* Check for negative sizes */
1758 _mesa_error(ctx, GL_INVALID_VALUE,
1759 "glTexSubImage%dD(width=%d)", dimensions, width);
1762 if (height < 0 && dimensions > 1) {
1763 _mesa_error(ctx, GL_INVALID_VALUE,
1764 "glTexSubImage%dD(height=%d)", dimensions, height);
1767 if (depth < 0 && dimensions > 2) {
1768 _mesa_error(ctx, GL_INVALID_VALUE,
1769 "glTexSubImage%dD(depth=%d)", dimensions, depth);
1773 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1774 /* As with the glTexImage2D check above, the error code here
1775 * depends on texture integer.
1777 GLenum error = _mesa_is_integer_format(format)
1778 ? GL_INVALID_OPERATION : GL_INVALID_ENUM;
1779 _mesa_error(ctx, error,
1780 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
1781 dimensions, format, type);
1790 * Do second part of glTexSubImage which depends on the destination texture.
1791 * \return GL_TRUE if error recorded, GL_FALSE otherwise
1794 subtexture_error_check2( struct gl_context *ctx, GLuint dimensions,
1795 GLenum target, GLint level,
1796 GLint xoffset, GLint yoffset, GLint zoffset,
1797 GLint width, GLint height, GLint depth,
1798 GLenum format, GLenum type,
1799 const struct gl_texture_image *destTex )
1802 /* undefined image level */
1803 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
1807 if (xoffset < -((GLint)destTex->Border)) {
1808 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
1812 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
1813 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
1817 if (dimensions > 1) {
1818 if (yoffset < -((GLint)destTex->Border)) {
1819 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
1823 if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
1824 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
1829 if (dimensions > 2) {
1830 if (zoffset < -((GLint)destTex->Border)) {
1831 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
1834 if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) {
1835 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
1840 if (_mesa_is_format_compressed(destTex->TexFormat)) {
1843 /* do tests which depend on compression block size */
1844 _mesa_get_format_block_size(destTex->TexFormat, &bw, &bh);
1846 /* offset must be multiple of block size */
1847 if ((xoffset % bw != 0) || (yoffset % bh != 0)) {
1848 _mesa_error(ctx, GL_INVALID_OPERATION,
1849 "glTexSubImage%dD(xoffset = %d, yoffset = %d)",
1850 dimensions, xoffset, yoffset);
1853 /* size must be multiple of bw by bh or equal to whole texture size */
1854 if ((width % bw != 0) && (GLuint) width != destTex->Width) {
1855 _mesa_error(ctx, GL_INVALID_OPERATION,
1856 "glTexSubImage%dD(width = %d)", dimensions, width);
1859 if ((height % bh != 0) && (GLuint) height != destTex->Height) {
1860 _mesa_error(ctx, GL_INVALID_OPERATION,
1861 "glTexSubImage%dD(height = %d)", dimensions, height);
1871 * Test glCopyTexImage[12]D() parameters for errors.
1873 * \param ctx GL context.
1874 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1875 * \param target texture target given by the user.
1876 * \param level image level given by the user.
1877 * \param internalFormat internal format given by the user.
1878 * \param width image width given by the user.
1879 * \param height image height given by the user.
1880 * \param border texture border.
1882 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1884 * Verifies each of the parameters against the constants specified in
1885 * __struct gl_contextRec::Const and the supported extensions, and according
1886 * to the OpenGL specification.
1889 copytexture_error_check( struct gl_context *ctx, GLuint dimensions,
1890 GLenum target, GLint level, GLint internalFormat,
1891 GLint width, GLint height, GLint border )
1893 const GLenum proxyTarget = get_proxy_target(target);
1894 const GLenum type = GL_FLOAT;
1899 if (!legal_texsubimage_target(ctx, dimensions, target)) {
1900 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)",
1901 dimensions, _mesa_lookup_enum_by_nr(target));
1905 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1906 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1907 _mesa_error(ctx, GL_INVALID_VALUE,
1908 "glCopyTexImage%dD(level=%d)", dimensions, level);
1912 /* Check that the source buffer is complete */
1913 if (ctx->ReadBuffer->Name) {
1914 if (ctx->ReadBuffer->_Status == 0) {
1915 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
1917 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
1918 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
1919 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
1925 if (border < 0 || border > 1 ||
1926 ((target == GL_TEXTURE_RECTANGLE_NV ||
1927 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1931 format = _mesa_base_tex_format(ctx, internalFormat);
1933 _mesa_error(ctx, GL_INVALID_VALUE,
1934 "glCopyTexImage%dD(internalFormat)", dimensions);
1938 if (!_mesa_source_buffer_exists(ctx, format)) {
1939 _mesa_error(ctx, GL_INVALID_OPERATION,
1940 "glCopyTexImage%dD(missing readbuffer)", dimensions);
1944 /* Do size, level checking */
1945 sizeOK = (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB)
1946 ? (width == height) : 1;
1948 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
1949 internalFormat, format,
1950 type, width, height,
1954 if (dimensions == 1) {
1955 _mesa_error(ctx, GL_INVALID_VALUE,
1956 "glCopyTexImage1D(width=%d)", width);
1959 ASSERT(dimensions == 2);
1960 _mesa_error(ctx, GL_INVALID_VALUE,
1961 "glCopyTexImage2D(width=%d, height=%d)", width, height);
1966 if (_mesa_is_compressed_format(ctx, internalFormat)) {
1967 if (!target_can_be_compressed(ctx, target, internalFormat)) {
1968 _mesa_error(ctx, GL_INVALID_ENUM,
1969 "glCopyTexImage%dD(target)", dimensions);
1973 _mesa_error(ctx, GL_INVALID_OPERATION,
1974 "glCopyTexImage%dD(border!=0)", dimensions);
1979 /* if we get here, the parameters are OK */
1985 * Test glCopyTexSubImage[12]D() parameters for errors.
1986 * Note that this is the first part of error checking.
1987 * See also copytexsubimage_error_check2() below for the second part.
1989 * \param ctx GL context.
1990 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1991 * \param target texture target given by the user.
1992 * \param level image level given by the user.
1994 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1997 copytexsubimage_error_check1( struct gl_context *ctx, GLuint dimensions,
1998 GLenum target, GLint level)
2000 /* Check that the source buffer is complete */
2001 if (ctx->ReadBuffer->Name) {
2002 if (ctx->ReadBuffer->_Status == 0) {
2003 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2005 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2006 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2007 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2012 /* check target (proxies not allowed) */
2013 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2014 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)",
2015 dimensions, _mesa_lookup_enum_by_nr(target));
2020 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
2021 _mesa_error(ctx, GL_INVALID_VALUE,
2022 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
2031 * Second part of error checking for glCopyTexSubImage[12]D().
2032 * \param xoffset sub-image x offset given by the user.
2033 * \param yoffset sub-image y offset given by the user.
2034 * \param zoffset sub-image z offset given by the user.
2035 * \param width image width given by the user.
2036 * \param height image height given by the user.
2039 copytexsubimage_error_check2( struct gl_context *ctx, GLuint dimensions,
2040 GLenum target, GLint level,
2041 GLint xoffset, GLint yoffset, GLint zoffset,
2042 GLsizei width, GLsizei height,
2043 const struct gl_texture_image *teximage )
2045 /* check that dest tex image exists */
2047 _mesa_error(ctx, GL_INVALID_OPERATION,
2048 "glCopyTexSubImage%dD(undefined texture level: %d)",
2055 _mesa_error(ctx, GL_INVALID_VALUE,
2056 "glCopyTexSubImage%dD(width=%d)", dimensions, width);
2059 if (dimensions > 1 && height < 0) {
2060 _mesa_error(ctx, GL_INVALID_VALUE,
2061 "glCopyTexSubImage%dD(height=%d)", dimensions, height);
2065 /* check x/y offsets */
2066 if (xoffset < -((GLint)teximage->Border)) {
2067 _mesa_error(ctx, GL_INVALID_VALUE,
2068 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
2071 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
2072 _mesa_error(ctx, GL_INVALID_VALUE,
2073 "glCopyTexSubImage%dD(xoffset+width)", dimensions);
2076 if (dimensions > 1) {
2077 if (yoffset < -((GLint)teximage->Border)) {
2078 _mesa_error(ctx, GL_INVALID_VALUE,
2079 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
2082 /* NOTE: we're adding the border here, not subtracting! */
2083 if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
2084 _mesa_error(ctx, GL_INVALID_VALUE,
2085 "glCopyTexSubImage%dD(yoffset+height)", dimensions);
2090 /* check z offset */
2091 if (dimensions > 2) {
2092 if (zoffset < -((GLint)teximage->Border)) {
2093 _mesa_error(ctx, GL_INVALID_VALUE,
2094 "glCopyTexSubImage%dD(zoffset)", dimensions);
2097 if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
2098 _mesa_error(ctx, GL_INVALID_VALUE,
2099 "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
2104 if (_mesa_is_format_compressed(teximage->TexFormat)) {
2105 /* offset must be multiple of 4 */
2106 if ((xoffset & 3) || (yoffset & 3)) {
2107 _mesa_error(ctx, GL_INVALID_VALUE,
2108 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions);
2111 /* size must be multiple of 4 */
2112 if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
2113 _mesa_error(ctx, GL_INVALID_VALUE,
2114 "glCopyTexSubImage%dD(width)", dimensions);
2117 if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
2118 _mesa_error(ctx, GL_INVALID_VALUE,
2119 "glCopyTexSubImage%dD(height)", dimensions);
2124 if (teximage->InternalFormat == GL_YCBCR_MESA) {
2125 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
2129 if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) {
2130 _mesa_error(ctx, GL_INVALID_OPERATION,
2131 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2132 dimensions, teximage->_BaseFormat);
2136 /* If copying into an integer texture, the source buffer must also be
2139 if (_mesa_is_format_integer_color(teximage->TexFormat)) {
2140 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
2141 if (!_mesa_is_format_integer_color(rb->Format)) {
2142 _mesa_error(ctx, GL_INVALID_OPERATION,
2143 "glCopyTexSubImage%dD(source buffer is not integer format)",
2149 /* if we get here, the parameters are OK */
2154 /** Callback info for walking over FBO hash table */
2157 struct gl_context *ctx;
2158 struct gl_texture_object *texObj;
2164 * Check render to texture callback. Called from _mesa_HashWalk().
2167 check_rtt_cb(GLuint key, void *data, void *userData)
2169 struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
2170 const struct cb_info *info = (struct cb_info *) userData;
2171 struct gl_context *ctx = info->ctx;
2172 const struct gl_texture_object *texObj = info->texObj;
2173 const GLuint level = info->level, face = info->face;
2175 /* If this is a user-created FBO */
2178 /* check if any of the FBO's attachments point to 'texObj' */
2179 for (i = 0; i < BUFFER_COUNT; i++) {
2180 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
2181 if (att->Type == GL_TEXTURE &&
2182 att->Texture == texObj &&
2183 att->TextureLevel == level &&
2184 att->CubeMapFace == face) {
2185 ASSERT(_mesa_get_attachment_teximage(att));
2186 /* Tell driver about the new renderbuffer texture */
2187 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
2188 /* Mark fb status as indeterminate to force re-validation */
2197 * When a texture image is specified we have to check if it's bound to
2198 * any framebuffer objects (render to texture) in order to detect changes
2199 * in size or format since that effects FBO completeness.
2200 * Any FBOs rendering into the texture must be re-validated.
2203 update_fbo_texture(struct gl_context *ctx, struct gl_texture_object *texObj,
2204 GLuint face, GLuint level)
2206 /* Only check this texture if it's been marked as RenderToTexture */
2207 if (texObj->_RenderToTexture) {
2208 struct cb_info info;
2210 info.texObj = texObj;
2213 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info);
2219 * If the texture object's GenerateMipmap flag is set and we've
2220 * changed the texture base level image, regenerate the rest of the
2221 * mipmap levels now.
2224 check_gen_mipmap(struct gl_context *ctx, GLenum target,
2225 struct gl_texture_object *texObj, GLint level)
2227 ASSERT(target != GL_TEXTURE_CUBE_MAP);
2228 if (texObj->GenerateMipmap &&
2229 level == texObj->BaseLevel &&
2230 level < texObj->MaxLevel) {
2231 ASSERT(ctx->Driver.GenerateMipmap);
2232 ctx->Driver.GenerateMipmap(ctx, target, texObj);
2237 /** Debug helper: override the user-requested internal format */
2239 override_internal_format(GLenum internalFormat, GLint width, GLint height)
2242 if (internalFormat == GL_RGBA16F_ARB ||
2243 internalFormat == GL_RGBA32F_ARB) {
2244 printf("Convert rgba float tex to int %d x %d\n", width, height);
2247 else if (internalFormat == GL_RGB16F_ARB ||
2248 internalFormat == GL_RGB32F_ARB) {
2249 printf("Convert rgb float tex to int %d x %d\n", width, height);
2252 else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB ||
2253 internalFormat == GL_LUMINANCE_ALPHA32F_ARB) {
2254 printf("Convert luminance float tex to int %d x %d\n", width, height);
2255 return GL_LUMINANCE_ALPHA;
2257 else if (internalFormat == GL_LUMINANCE16F_ARB ||
2258 internalFormat == GL_LUMINANCE32F_ARB) {
2259 printf("Convert luminance float tex to int %d x %d\n", width, height);
2260 return GL_LUMINANCE;
2262 else if (internalFormat == GL_ALPHA16F_ARB ||
2263 internalFormat == GL_ALPHA32F_ARB) {
2264 printf("Convert luminance float tex to int %d x %d\n", width, height);
2268 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2269 internalFormat = GL_RGBA;
2273 return internalFormat;
2276 return internalFormat;
2282 * Choose the actual hardware format for a texture image.
2283 * Try to use the same format as the previous image level when possible.
2284 * Otherwise, ask the driver for the best format.
2285 * It's important to try to choose a consistant format for all levels
2286 * for efficient texture memory layout/allocation. In particular, this
2287 * comes up during automatic mipmap generation.
2290 _mesa_choose_texture_format(struct gl_context *ctx,
2291 struct gl_texture_object *texObj,
2292 GLenum target, GLint level,
2293 GLenum internalFormat, GLenum format, GLenum type)
2297 /* see if we've already chosen a format for the previous level */
2299 struct gl_texture_image *prevImage =
2300 _mesa_select_tex_image(ctx, texObj, target, level - 1);
2301 /* See if the prev level is defined and has an internal format which
2302 * matches the new internal format.
2305 prevImage->Width > 0 &&
2306 prevImage->InternalFormat == internalFormat) {
2307 /* use the same format */
2308 ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE);
2309 return prevImage->TexFormat;
2313 /* choose format from scratch */
2314 f = ctx->Driver.ChooseTextureFormat(ctx, internalFormat, format, type);
2315 ASSERT(f != MESA_FORMAT_NONE);
2321 * Common code to implement all the glTexImage1D/2D/3D functions.
2324 teximage(struct gl_context *ctx, GLuint dims,
2325 GLenum target, GLint level, GLint internalFormat,
2326 GLsizei width, GLsizei height, GLsizei depth,
2327 GLint border, GLenum format, GLenum type,
2328 const GLvoid *pixels)
2332 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2334 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
2335 _mesa_debug(ctx, "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2337 _mesa_lookup_enum_by_nr(target), level,
2338 _mesa_lookup_enum_by_nr(internalFormat),
2339 width, height, depth, border,
2340 _mesa_lookup_enum_by_nr(format),
2341 _mesa_lookup_enum_by_nr(type), pixels);
2343 internalFormat = override_internal_format(internalFormat, width, height);
2345 /* target error checking */
2346 if (!legal_teximage_target(ctx, dims, target)) {
2347 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage%uD(target=%s)",
2348 dims, _mesa_lookup_enum_by_nr(target));
2352 /* general error checking */
2353 error = texture_error_check(ctx, dims, target, level, internalFormat,
2354 format, type, width, height, depth, border);
2356 if (_mesa_is_proxy_texture(target)) {
2357 /* Proxy texture: just clear or set state depending on error checking */
2358 struct gl_texture_image *texImage =
2359 _mesa_get_proxy_tex_image(ctx, target, level);
2362 /* when error, clear all proxy texture image parameters */
2364 clear_teximage_fields(texImage);
2367 /* no error, set the tex image parameters */
2368 struct gl_texture_object *texObj =
2369 _mesa_get_current_tex_object(ctx, target);
2370 gl_format texFormat = _mesa_choose_texture_format(ctx, texObj,
2375 if (legal_texture_size(ctx, texFormat, width, height, depth)) {
2376 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
2377 depth, border, internalFormat,
2380 else if (texImage) {
2381 clear_teximage_fields(texImage);
2386 /* non-proxy target */
2387 const GLuint face = _mesa_tex_target_to_face(target);
2388 struct gl_texture_object *texObj;
2389 struct gl_texture_image *texImage;
2392 return; /* error was recorded */
2395 if (ctx->NewState & _NEW_PIXEL)
2396 _mesa_update_state(ctx);
2398 texObj = _mesa_get_current_tex_object(ctx, target);
2400 _mesa_lock_texture(ctx, texObj);
2402 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2405 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
2408 gl_format texFormat;
2410 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
2412 ASSERT(texImage->Data == NULL);
2413 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
2414 internalFormat, format,
2417 if (legal_texture_size(ctx, texFormat, width, height, depth)) {
2418 _mesa_init_teximage_fields(ctx, target, texImage,
2419 width, height, depth,
2420 border, internalFormat, texFormat);
2422 /* Give the texture to the driver. <pixels> may be null. */
2423 ASSERT(ctx->Driver.TexImage3D);
2426 ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
2427 width, border, format,
2428 type, pixels, &ctx->Unpack, texObj,
2432 ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
2433 width, height, border, format,
2434 type, pixels, &ctx->Unpack, texObj,
2438 ctx->Driver.TexImage3D(ctx, target, level, internalFormat,
2439 width, height, depth, border, format,
2440 type, pixels, &ctx->Unpack, texObj,
2444 _mesa_problem(ctx, "invalid dims=%u in teximage()", dims);
2447 check_gen_mipmap(ctx, target, texObj, level);
2449 update_fbo_texture(ctx, texObj, face, level);
2452 texObj->_Complete = GL_FALSE;
2453 ctx->NewState |= _NEW_TEXTURE;
2456 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
2460 _mesa_unlock_texture(ctx, texObj);
2466 * Called from the API. Note that width includes the border.
2469 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
2470 GLsizei width, GLint border, GLenum format,
2471 GLenum type, const GLvoid *pixels )
2473 GET_CURRENT_CONTEXT(ctx);
2474 teximage(ctx, 1, target, level, internalFormat, width, 1, 1,
2475 border, format, type, pixels);
2480 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
2481 GLsizei width, GLsizei height, GLint border,
2482 GLenum format, GLenum type,
2483 const GLvoid *pixels )
2485 GET_CURRENT_CONTEXT(ctx);
2486 teximage(ctx, 2, target, level, internalFormat, width, height, 1,
2487 border, format, type, pixels);
2492 * Called by the API or display list executor.
2493 * Note that width and height include the border.
2496 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
2497 GLsizei width, GLsizei height, GLsizei depth,
2498 GLint border, GLenum format, GLenum type,
2499 const GLvoid *pixels )
2501 GET_CURRENT_CONTEXT(ctx);
2502 teximage(ctx, 3, target, level, internalFormat, width, height, depth,
2503 border, format, type, pixels);
2508 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
2509 GLsizei width, GLsizei height, GLsizei depth,
2510 GLint border, GLenum format, GLenum type,
2511 const GLvoid *pixels )
2513 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
2514 depth, border, format, type, pixels);
2518 #if FEATURE_OES_EGL_image
2520 _mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image)
2522 struct gl_texture_object *texObj;
2523 struct gl_texture_image *texImage;
2524 GET_CURRENT_CONTEXT(ctx);
2525 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2527 if (!ctx->Extensions.OES_EGL_image) {
2528 _mesa_error(ctx, GL_INVALID_OPERATION,
2529 "glEGLImageTargetTexture2DOES(unsupported)");
2533 if (target != GL_TEXTURE_2D) {
2534 _mesa_error(ctx, GL_INVALID_ENUM,
2535 "glEGLImageTargetTexture2D(target=%d)", target);
2539 if (ctx->NewState & _NEW_PIXEL)
2540 _mesa_update_state(ctx);
2542 texObj = _mesa_get_current_tex_object(ctx, target);
2543 _mesa_lock_texture(ctx, texObj);
2545 texImage = _mesa_get_tex_image(ctx, texObj, target, 0);
2547 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D");
2549 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
2551 ASSERT(texImage->Data == NULL);
2552 ctx->Driver.EGLImageTargetTexture2D(ctx, target,
2553 texObj, texImage, image);
2556 texObj->_Complete = GL_FALSE;
2557 ctx->NewState |= _NEW_TEXTURE;
2559 _mesa_unlock_texture(ctx, texObj);
2567 * Implement all the glTexSubImage1/2/3D() functions.
2570 texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
2571 GLint xoffset, GLint yoffset, GLint zoffset,
2572 GLsizei width, GLsizei height, GLsizei depth,
2573 GLenum format, GLenum type, const GLvoid *pixels )
2575 struct gl_texture_object *texObj;
2576 struct gl_texture_image *texImage;
2578 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2580 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
2581 _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
2583 _mesa_lookup_enum_by_nr(target), level,
2584 xoffset, yoffset, zoffset, width, height, depth,
2585 _mesa_lookup_enum_by_nr(format),
2586 _mesa_lookup_enum_by_nr(type), pixels);
2588 /* check target (proxies not allowed) */
2589 if (!legal_texsubimage_target(ctx, dims, target)) {
2590 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)",
2591 dims, _mesa_lookup_enum_by_nr(target));
2595 if (ctx->NewState & _NEW_PIXEL)
2596 _mesa_update_state(ctx);
2598 if (subtexture_error_check(ctx, dims, target, level, xoffset, yoffset, zoffset,
2599 width, height, depth, format, type)) {
2600 return; /* error was detected */
2603 texObj = _mesa_get_current_tex_object(ctx, target);
2605 _mesa_lock_texture(ctx, texObj);
2607 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2609 if (subtexture_error_check2(ctx, dims, target, level,
2610 xoffset, yoffset, zoffset,
2611 width, height, depth,
2612 format, type, texImage)) {
2613 /* error was recorded */
2615 else if (width > 0 && height > 0 && depth > 0) {
2616 /* If we have a border, offset=-1 is legal. Bias by border width. */
2619 zoffset += texImage->Border;
2622 yoffset += texImage->Border;
2625 xoffset += texImage->Border;
2630 ctx->Driver.TexSubImage1D(ctx, target, level,
2632 format, type, pixels,
2633 &ctx->Unpack, texObj, texImage );
2636 ctx->Driver.TexSubImage2D(ctx, target, level,
2637 xoffset, yoffset, width, height,
2638 format, type, pixels,
2639 &ctx->Unpack, texObj, texImage );
2642 ctx->Driver.TexSubImage3D(ctx, target, level,
2643 xoffset, yoffset, zoffset,
2644 width, height, depth,
2645 format, type, pixels,
2646 &ctx->Unpack, texObj, texImage );
2649 _mesa_problem(ctx, "unexpected dims in subteximage()");
2652 check_gen_mipmap(ctx, target, texObj, level);
2654 ctx->NewState |= _NEW_TEXTURE;
2657 _mesa_unlock_texture(ctx, texObj);
2662 _mesa_TexSubImage1D( GLenum target, GLint level,
2663 GLint xoffset, GLsizei width,
2664 GLenum format, GLenum type,
2665 const GLvoid *pixels )
2667 GET_CURRENT_CONTEXT(ctx);
2668 texsubimage(ctx, 1, target, level,
2671 format, type, pixels);
2676 _mesa_TexSubImage2D( GLenum target, GLint level,
2677 GLint xoffset, GLint yoffset,
2678 GLsizei width, GLsizei height,
2679 GLenum format, GLenum type,
2680 const GLvoid *pixels )
2682 GET_CURRENT_CONTEXT(ctx);
2683 texsubimage(ctx, 2, target, level,
2684 xoffset, yoffset, 0,
2686 format, type, pixels);
2692 _mesa_TexSubImage3D( GLenum target, GLint level,
2693 GLint xoffset, GLint yoffset, GLint zoffset,
2694 GLsizei width, GLsizei height, GLsizei depth,
2695 GLenum format, GLenum type,
2696 const GLvoid *pixels )
2698 GET_CURRENT_CONTEXT(ctx);
2699 texsubimage(ctx, 3, target, level,
2700 xoffset, yoffset, zoffset,
2701 width, height, depth,
2702 format, type, pixels);
2708 * Implement the glCopyTexImage1/2D() functions.
2711 copyteximage(struct gl_context *ctx, GLuint dims,
2712 GLenum target, GLint level, GLenum internalFormat,
2713 GLint x, GLint y, GLsizei width, GLsizei height, GLint border )
2715 struct gl_texture_object *texObj;
2716 struct gl_texture_image *texImage;
2717 const GLuint face = _mesa_tex_target_to_face(target);
2719 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2721 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
2722 _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
2724 _mesa_lookup_enum_by_nr(target), level,
2725 _mesa_lookup_enum_by_nr(internalFormat),
2726 x, y, width, height, border);
2728 if (ctx->NewState & NEW_COPY_TEX_STATE)
2729 _mesa_update_state(ctx);
2731 if (copytexture_error_check(ctx, dims, target, level, internalFormat,
2732 width, height, border))
2735 texObj = _mesa_get_current_tex_object(ctx, target);
2737 _mesa_lock_texture(ctx, texObj);
2739 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2742 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
2745 /* choose actual hw format */
2746 gl_format texFormat = _mesa_choose_texture_format(ctx, texObj,
2751 if (legal_texture_size(ctx, texFormat, width, height, 1)) {
2752 GLint srcX = x, srcY = y, dstX = 0, dstY = 0;
2754 /* Free old texture image */
2755 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
2757 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
2758 border, internalFormat, texFormat);
2760 /* Allocate texture memory (no pixel data yet) */
2762 ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
2763 width, border, GL_NONE, GL_NONE, NULL,
2764 &ctx->Unpack, texObj, texImage);
2767 ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
2768 width, height, border, GL_NONE, GL_NONE,
2769 NULL, &ctx->Unpack, texObj, texImage);
2772 if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY,
2775 ctx->Driver.CopyTexSubImage1D(ctx, target, level, dstX,
2779 ctx->Driver.CopyTexSubImage2D(ctx, target, level, dstX, dstY,
2780 srcX, srcY, width, height);
2783 check_gen_mipmap(ctx, target, texObj, level);
2785 update_fbo_texture(ctx, texObj, face, level);
2788 texObj->_Complete = GL_FALSE;
2789 ctx->NewState |= _NEW_TEXTURE;
2792 /* probably too large of image */
2793 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
2797 _mesa_unlock_texture(ctx, texObj);
2803 _mesa_CopyTexImage1D( GLenum target, GLint level,
2804 GLenum internalFormat,
2806 GLsizei width, GLint border )
2808 GET_CURRENT_CONTEXT(ctx);
2809 copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border);
2815 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
2816 GLint x, GLint y, GLsizei width, GLsizei height,
2819 GET_CURRENT_CONTEXT(ctx);
2820 copyteximage(ctx, 2, target, level, internalFormat,
2821 x, y, width, height, border);
2827 * Implementation for glCopyTexSubImage1/2/3D() functions.
2830 copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
2831 GLint xoffset, GLint yoffset, GLint zoffset,
2832 GLint x, GLint y, GLsizei width, GLsizei height)
2834 struct gl_texture_object *texObj;
2835 struct gl_texture_image *texImage;
2837 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2839 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
2840 _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
2842 _mesa_lookup_enum_by_nr(target),
2843 level, xoffset, yoffset, zoffset, x, y, width, height);
2845 if (ctx->NewState & NEW_COPY_TEX_STATE)
2846 _mesa_update_state(ctx);
2848 if (copytexsubimage_error_check1(ctx, dims, target, level))
2851 texObj = _mesa_get_current_tex_object(ctx, target);
2853 _mesa_lock_texture(ctx, texObj);
2855 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2857 if (copytexsubimage_error_check2(ctx, dims, target, level, xoffset, yoffset,
2858 zoffset, width, height, texImage)) {
2859 /* error was recored */
2862 /* If we have a border, offset=-1 is legal. Bias by border width. */
2865 zoffset += texImage->Border;
2868 yoffset += texImage->Border;
2871 xoffset += texImage->Border;
2874 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
2878 ctx->Driver.CopyTexSubImage1D(ctx, target, level,
2879 xoffset, x, y, width);
2882 ctx->Driver.CopyTexSubImage2D(ctx, target, level,
2884 x, y, width, height);
2887 ctx->Driver.CopyTexSubImage3D(ctx, target, level,
2888 xoffset, yoffset, zoffset,
2889 x, y, width, height);
2892 _mesa_problem(ctx, "bad dims in copytexsubimage()");
2895 check_gen_mipmap(ctx, target, texObj, level);
2897 ctx->NewState |= _NEW_TEXTURE;
2901 _mesa_unlock_texture(ctx, texObj);
2906 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
2907 GLint xoffset, GLint x, GLint y, GLsizei width )
2909 GET_CURRENT_CONTEXT(ctx);
2910 copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1);
2916 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
2917 GLint xoffset, GLint yoffset,
2918 GLint x, GLint y, GLsizei width, GLsizei height )
2920 GET_CURRENT_CONTEXT(ctx);
2921 copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y,
2928 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
2929 GLint xoffset, GLint yoffset, GLint zoffset,
2930 GLint x, GLint y, GLsizei width, GLsizei height )
2932 GET_CURRENT_CONTEXT(ctx);
2933 copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset,
2934 x, y, width, height);
2940 /**********************************************************************/
2941 /****** Compressed Textures ******/
2942 /**********************************************************************/
2946 * Return expected size of a compressed texture.
2949 compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth,
2952 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
2953 return _mesa_format_image_size(mesaFormat, width, height, depth);
2958 * Return compressed texture block size, in pixels.
2961 get_compressed_block_size(GLenum glformat, GLuint *bw, GLuint *bh)
2963 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
2964 _mesa_get_format_block_size(mesaFormat, bw, bh);
2969 * Error checking for glCompressedTexImage[123]D().
2970 * \param reason returns reason for error, if any
2971 * \return error code or GL_NO_ERROR.
2974 compressed_texture_error_check(struct gl_context *ctx, GLint dimensions,
2975 GLenum target, GLint level,
2976 GLenum internalFormat, GLsizei width,
2977 GLsizei height, GLsizei depth, GLint border,
2978 GLsizei imageSize, char **reason)
2980 const GLenum proxyTarget = get_proxy_target(target);
2981 const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
2983 GLenum choose_format;
2985 GLenum proxy_format;
2987 *reason = ""; /* no error */
2989 if (!target_can_be_compressed(ctx, target, internalFormat)) {
2991 return GL_INVALID_ENUM;
2994 /* This will detect any invalid internalFormat value */
2995 if (!_mesa_is_compressed_format(ctx, internalFormat)) {
2996 *reason = "internalFormat";
2997 return GL_INVALID_ENUM;
3000 switch (internalFormat) {
3002 case GL_PALETTE4_RGB8_OES:
3003 case GL_PALETTE4_RGBA8_OES:
3004 case GL_PALETTE4_R5_G6_B5_OES:
3005 case GL_PALETTE4_RGBA4_OES:
3006 case GL_PALETTE4_RGB5_A1_OES:
3007 case GL_PALETTE8_RGB8_OES:
3008 case GL_PALETTE8_RGBA8_OES:
3009 case GL_PALETTE8_R5_G6_B5_OES:
3010 case GL_PALETTE8_RGBA4_OES:
3011 case GL_PALETTE8_RGB5_A1_OES:
3012 _mesa_cpal_compressed_format_type(internalFormat, &choose_format,
3014 proxy_format = choose_format;
3017 if (level > 0 || level < -maxLevels) {
3019 return GL_INVALID_VALUE;
3022 if (dimensions != 2) {
3023 *reason = "compressed paletted textures must be 2D";
3024 return GL_INVALID_OPERATION;
3027 /* Figure out the expected texture size (in bytes). This will be
3028 * checked against the actual size later.
3030 expectedSize = _mesa_cpal_compressed_size(level, internalFormat,
3033 /* This is for the benefit of the TestProxyTexImage below. It expects
3034 * level to be non-negative. OES_compressed_paletted_texture uses a
3035 * weird mechanism where the level specified to glCompressedTexImage2D
3036 * is -(n-1) number of levels in the texture, and the data specifies the
3037 * complete mipmap stack. This is done to ensure the palette is the
3038 * same for all levels.
3045 choose_format = GL_NONE;
3046 choose_type = GL_NONE;
3047 proxy_format = internalFormat;
3050 if (level < 0 || level >= maxLevels) {
3052 return GL_INVALID_VALUE;
3055 /* Figure out the expected texture size (in bytes). This will be
3056 * checked against the actual size later.
3058 expectedSize = compressed_tex_size(width, height, depth, internalFormat);
3062 /* This should really never fail */
3063 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
3064 *reason = "internalFormat";
3065 return GL_INVALID_ENUM;
3068 /* No compressed formats support borders at this time */
3070 *reason = "border != 0";
3071 return GL_INVALID_VALUE;
3074 /* For cube map, width must equal height */
3075 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3076 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height) {
3077 *reason = "width != height";
3078 return GL_INVALID_VALUE;
3081 /* check image size against compression block size */
3083 gl_format texFormat =
3084 ctx->Driver.ChooseTextureFormat(ctx, proxy_format,
3085 choose_format, choose_type);
3088 _mesa_get_format_block_size(texFormat, &bw, &bh);
3089 if ((width > bw && width % bw > 0) ||
3090 (height > bh && height % bh > 0)) {
3092 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is
3093 * generated [...] if any parameter combinations are not
3094 * supported by the specific compressed internal format.
3096 *reason = "invalid width or height for compression format";
3097 return GL_INVALID_OPERATION;
3101 /* check image sizes */
3102 if (!ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
3103 proxy_format, choose_format,
3105 width, height, depth, border)) {
3106 /* See error comment above */
3107 *reason = "invalid width, height or format";
3108 return GL_INVALID_OPERATION;
3111 /* check image size in bytes */
3112 if (expectedSize != imageSize) {
3113 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
3114 * if <imageSize> is not consistent with the format, dimensions, and
3115 * contents of the specified image.
3117 *reason = "imageSize inconsistant with width/height/format";
3118 return GL_INVALID_VALUE;
3126 * Error checking for glCompressedTexSubImage[123]D().
3127 * \warning There are some bad assumptions here about the size of compressed
3128 * texture tiles (multiple of 4) used to test the validity of the
3129 * offset and size parameters.
3130 * \return error code or GL_NO_ERROR.
3133 compressed_subtexture_error_check(struct gl_context *ctx, GLint dimensions,
3134 GLenum target, GLint level,
3135 GLint xoffset, GLint yoffset, GLint zoffset,
3136 GLsizei width, GLsizei height, GLsizei depth,
3137 GLenum format, GLsizei imageSize)
3139 GLint expectedSize, maxLevels = 0, maxTextureSize;
3143 if (dimensions == 1) {
3144 /* 1D compressed textures not allowed */
3145 return GL_INVALID_ENUM;
3147 else if (dimensions == 2) {
3148 if (target == GL_PROXY_TEXTURE_2D) {
3149 maxLevels = ctx->Const.MaxTextureLevels;
3151 else if (target == GL_TEXTURE_2D) {
3152 maxLevels = ctx->Const.MaxTextureLevels;
3154 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
3155 if (!ctx->Extensions.ARB_texture_cube_map)
3156 return GL_INVALID_ENUM; /*target*/
3157 maxLevels = ctx->Const.MaxCubeTextureLevels;
3159 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3160 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
3161 if (!ctx->Extensions.ARB_texture_cube_map)
3162 return GL_INVALID_ENUM; /*target*/
3163 maxLevels = ctx->Const.MaxCubeTextureLevels;
3166 return GL_INVALID_ENUM; /*target*/
3169 else if (dimensions == 3) {
3170 /* 3D compressed textures not allowed */
3171 return GL_INVALID_ENUM;
3174 maxTextureSize = 1 << (maxLevels - 1);
3176 /* this will catch any invalid compressed format token */
3177 if (!_mesa_is_compressed_format(ctx, format))
3178 return GL_INVALID_ENUM;
3180 if (width < 1 || width > maxTextureSize)
3181 return GL_INVALID_VALUE;
3183 if ((height < 1 || height > maxTextureSize)
3185 return GL_INVALID_VALUE;
3187 if (level < 0 || level >= maxLevels)
3188 return GL_INVALID_VALUE;
3191 * do checks which depend on compression block size
3193 get_compressed_block_size(format, &bw, &bh);
3195 if ((xoffset % bw != 0) || (yoffset % bh != 0))
3196 return GL_INVALID_VALUE;
3198 if ((width % bw != 0) && width != 2 && width != 1)
3199 return GL_INVALID_VALUE;
3201 if ((height % bh != 0) && height != 2 && height != 1)
3202 return GL_INVALID_VALUE;
3204 expectedSize = compressed_tex_size(width, height, depth, format);
3205 if (expectedSize != imageSize)
3206 return GL_INVALID_VALUE;
3213 * Do second part of glCompressedTexSubImage error checking.
3214 * \return GL_TRUE if error found, GL_FALSE otherwise.
3217 compressed_subtexture_error_check2(struct gl_context *ctx, GLuint dims,
3218 GLsizei width, GLsizei height,
3219 GLsizei depth, GLenum format,
3220 struct gl_texture_image *texImage)
3223 if ((GLint) format != texImage->InternalFormat) {
3224 _mesa_error(ctx, GL_INVALID_OPERATION,
3225 "glCompressedTexSubImage%uD(format=0x%x)", dims, format);
3229 if (((width == 1 || width == 2) &&
3230 width != (GLsizei) texImage->Width) ||
3231 (width > (GLsizei) texImage->Width)) {
3232 _mesa_error(ctx, GL_INVALID_VALUE,
3233 "glCompressedTexSubImage%uD(width=%d)", dims, width);
3238 if (((height == 1 || height == 2) &&
3239 height != (GLsizei) texImage->Height) ||
3240 (height > (GLsizei) texImage->Height)) {
3241 _mesa_error(ctx, GL_INVALID_VALUE,
3242 "glCompressedTexSubImage%uD(height=%d)", dims, height);
3248 if (((depth == 1 || depth == 2) &&
3249 depth != (GLsizei) texImage->Depth) ||
3250 (depth > (GLsizei) texImage->Depth)) {
3251 _mesa_error(ctx, GL_INVALID_VALUE,
3252 "glCompressedTexSubImage%uD(depth=%d)", dims, depth);
3262 * Implementation of the glCompressedTexImage1/2/3D() functions.
3265 compressedteximage(struct gl_context *ctx, GLuint dims,
3266 GLenum target, GLint level,
3267 GLenum internalFormat, GLsizei width,
3268 GLsizei height, GLsizei depth, GLint border,
3269 GLsizei imageSize, const GLvoid *data)
3274 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3276 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3278 "glCompressedTexImage%uDARB %s %d %s %d %d %d %d %d %p\n",
3280 _mesa_lookup_enum_by_nr(target), level,
3281 _mesa_lookup_enum_by_nr(internalFormat),
3282 width, height, depth, border, imageSize, data);
3285 if (!legal_teximage_target(ctx, dims, target)) {
3286 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(target=%s)",
3287 dims, _mesa_lookup_enum_by_nr(target));
3291 error = compressed_texture_error_check(ctx, dims, target, level,
3292 internalFormat, width, height, depth,
3293 border, imageSize, &reason);
3296 _mesa_error(ctx, error, "glCompressedTexImage%uD(%s)", dims, reason);
3301 /* XXX this is kind of a hack */
3303 switch (internalFormat) {
3304 case GL_PALETTE4_RGB8_OES:
3305 case GL_PALETTE4_RGBA8_OES:
3306 case GL_PALETTE4_R5_G6_B5_OES:
3307 case GL_PALETTE4_RGBA4_OES:
3308 case GL_PALETTE4_RGB5_A1_OES:
3309 case GL_PALETTE8_RGB8_OES:
3310 case GL_PALETTE8_RGBA8_OES:
3311 case GL_PALETTE8_R5_G6_B5_OES:
3312 case GL_PALETTE8_RGBA4_OES:
3313 case GL_PALETTE8_RGB5_A1_OES:
3314 _mesa_cpal_compressed_teximage2d(target, level, internalFormat,
3315 width, height, imageSize, data);
3321 if (_mesa_is_proxy_texture(target)) {
3322 /* Proxy texture: just check for errors and update proxy state */
3323 struct gl_texture_image *texImage;
3326 struct gl_texture_object *texObj =
3327 _mesa_get_current_tex_object(ctx, target);
3328 gl_format texFormat =
3329 _mesa_choose_texture_format(ctx, texObj, target, level,
3330 internalFormat, GL_NONE, GL_NONE);
3331 if (!legal_texture_size(ctx, texFormat, width, height, depth)) {
3332 error = GL_OUT_OF_MEMORY;
3336 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3339 /* if error, clear all proxy texture image parameters */
3340 clear_teximage_fields(texImage);
3343 /* no error: store the teximage parameters */
3344 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
3345 depth, border, internalFormat,
3351 /* non-proxy target */
3352 struct gl_texture_object *texObj;
3353 struct gl_texture_image *texImage;
3356 _mesa_error(ctx, error, "glCompressedTexImage%uD", dims);
3360 texObj = _mesa_get_current_tex_object(ctx, target);
3362 _mesa_lock_texture(ctx, texObj);
3364 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3366 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3367 "glCompressedTexImage%uD", dims);
3370 gl_format texFormat;
3372 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3373 ASSERT(texImage->Data == NULL);
3375 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
3376 internalFormat, GL_NONE,
3379 if (legal_texture_size(ctx, texFormat, width, height, depth)) {
3380 _mesa_init_teximage_fields(ctx, target, texImage,
3381 width, height, depth,
3382 border, internalFormat, texFormat);
3386 ASSERT(ctx->Driver.CompressedTexImage1D);
3387 ctx->Driver.CompressedTexImage1D(ctx, target, level,
3390 border, imageSize, data,
3394 ASSERT(ctx->Driver.CompressedTexImage2D);
3395 ctx->Driver.CompressedTexImage2D(ctx, target, level,
3398 border, imageSize, data,
3402 ASSERT(ctx->Driver.CompressedTexImage3D);
3403 ctx->Driver.CompressedTexImage3D(ctx, target, level,
3405 width, height, depth,
3406 border, imageSize, data,
3410 _mesa_problem(ctx, "bad dims in compressedteximage");
3413 check_gen_mipmap(ctx, target, texObj, level);
3416 texObj->_Complete = GL_FALSE;
3417 ctx->NewState |= _NEW_TEXTURE;
3420 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3421 "glCompressedTexImage%uD", dims);
3425 _mesa_unlock_texture(ctx, texObj);
3431 _mesa_CompressedTexImage1DARB(GLenum target, GLint level,
3432 GLenum internalFormat, GLsizei width,
3433 GLint border, GLsizei imageSize,
3436 GET_CURRENT_CONTEXT(ctx);
3437 compressedteximage(ctx, 1, target, level, internalFormat,
3438 width, 1, 1, border, imageSize, data);
3443 _mesa_CompressedTexImage2DARB(GLenum target, GLint level,
3444 GLenum internalFormat, GLsizei width,
3445 GLsizei height, GLint border, GLsizei imageSize,
3448 GET_CURRENT_CONTEXT(ctx);
3449 compressedteximage(ctx, 2, target, level, internalFormat,
3450 width, height, 1, border, imageSize, data);
3455 _mesa_CompressedTexImage3DARB(GLenum target, GLint level,
3456 GLenum internalFormat, GLsizei width,
3457 GLsizei height, GLsizei depth, GLint border,
3458 GLsizei imageSize, const GLvoid *data)
3460 GET_CURRENT_CONTEXT(ctx);
3461 compressedteximage(ctx, 3, target, level, internalFormat,
3462 width, height, depth, border, imageSize, data);
3467 * Common helper for glCompressedTexSubImage1/2/3D().
3470 compressed_tex_sub_image(GLuint dims, GLenum target, GLint level,
3471 GLint xoffset, GLint yoffset, GLint zoffset,
3472 GLsizei width, GLsizei height, GLsizei depth,
3473 GLenum format, GLsizei imageSize, const GLvoid *data)
3475 struct gl_texture_object *texObj;
3476 struct gl_texture_image *texImage;
3478 GET_CURRENT_CONTEXT(ctx);
3479 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3481 error = compressed_subtexture_error_check(ctx, dims, target, level,
3482 xoffset, 0, 0, /* pos */
3483 width, height, depth, /* size */
3486 _mesa_error(ctx, error, "glCompressedTexSubImage%uD", dims);
3490 texObj = _mesa_get_current_tex_object(ctx, target);
3492 _mesa_lock_texture(ctx, texObj);
3494 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3497 if (compressed_subtexture_error_check2(ctx, dims, width, height, depth,
3498 format, texImage)) {
3499 /* error was recorded */
3501 else if (width > 0 && height > 0 && depth > 0) {
3504 if (ctx->Driver.CompressedTexSubImage1D) {
3505 ctx->Driver.CompressedTexSubImage1D(ctx, target, level,
3507 format, imageSize, data,
3512 if (ctx->Driver.CompressedTexSubImage2D) {
3513 ctx->Driver.CompressedTexSubImage2D(ctx, target, level,
3516 format, imageSize, data,
3521 if (ctx->Driver.CompressedTexSubImage3D) {
3522 ctx->Driver.CompressedTexSubImage3D(ctx, target, level,
3523 xoffset, yoffset, zoffset,
3524 width, height, depth,
3525 format, imageSize, data,
3533 check_gen_mipmap(ctx, target, texObj, level);
3535 ctx->NewState |= _NEW_TEXTURE;
3538 _mesa_unlock_texture(ctx, texObj);
3543 _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
3544 GLsizei width, GLenum format,
3545 GLsizei imageSize, const GLvoid *data)
3547 compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1,
3548 format, imageSize, data);
3553 _mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
3554 GLint yoffset, GLsizei width, GLsizei height,
3555 GLenum format, GLsizei imageSize,
3558 compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0,
3559 width, height, 1, format, imageSize, data);
3564 _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
3565 GLint yoffset, GLint zoffset, GLsizei width,
3566 GLsizei height, GLsizei depth, GLenum format,
3567 GLsizei imageSize, const GLvoid *data)
3569 compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset,
3570 width, height, depth, format, imageSize, data);
3575 * Helper for glTexBuffer(). Check if internalFormat is legal. If so,
3576 * return the basic data type and number of components for the format.
3577 * \param return GL_TRUE if internalFormat is legal, GL_FALSE otherwise
3580 get_sized_format_info(const struct gl_context *ctx, GLenum internalFormat,
3581 GLenum *datatype, GLuint *components)
3583 switch (internalFormat) {
3585 *datatype = GL_UNSIGNED_BYTE;
3589 *datatype = GL_UNSIGNED_SHORT;
3592 case GL_ALPHA16F_ARB:
3593 *datatype = GL_HALF_FLOAT;
3596 case GL_ALPHA32F_ARB:
3597 *datatype = GL_FLOAT;
3600 case GL_ALPHA8I_EXT:
3601 *datatype = GL_BYTE;
3604 case GL_ALPHA16I_EXT:
3605 *datatype = GL_SHORT;
3608 case GL_ALPHA32I_EXT:
3612 case GL_ALPHA8UI_EXT:
3613 *datatype = GL_UNSIGNED_BYTE;
3616 case GL_ALPHA16UI_EXT:
3617 *datatype = GL_UNSIGNED_SHORT;
3620 case GL_ALPHA32UI_EXT:
3621 *datatype = GL_UNSIGNED_INT;
3625 *datatype = GL_UNSIGNED_BYTE;
3628 case GL_LUMINANCE16:
3629 *datatype = GL_UNSIGNED_SHORT;
3632 case GL_LUMINANCE16F_ARB:
3633 *datatype = GL_HALF_FLOAT;
3636 case GL_LUMINANCE32F_ARB:
3637 *datatype = GL_FLOAT;
3640 case GL_LUMINANCE8I_EXT:
3641 *datatype = GL_BYTE;
3644 case GL_LUMINANCE16I_EXT:
3645 *datatype = GL_SHORT;
3648 case GL_LUMINANCE32I_EXT:
3652 case GL_LUMINANCE8UI_EXT:
3653 *datatype = GL_UNSIGNED_BYTE;
3656 case GL_LUMINANCE16UI_EXT:
3657 *datatype = GL_UNSIGNED_SHORT;
3660 case GL_LUMINANCE32UI_EXT:
3661 *datatype = GL_UNSIGNED_INT;
3664 case GL_LUMINANCE8_ALPHA8:
3665 *datatype = GL_UNSIGNED_BYTE;
3668 case GL_LUMINANCE16_ALPHA16:
3669 *datatype = GL_UNSIGNED_SHORT;
3672 case GL_LUMINANCE_ALPHA16F_ARB:
3673 *datatype = GL_HALF_FLOAT;
3676 case GL_LUMINANCE_ALPHA32F_ARB:
3677 *datatype = GL_FLOAT;
3680 case GL_LUMINANCE_ALPHA8I_EXT:
3681 *datatype = GL_BYTE;
3684 case GL_LUMINANCE_ALPHA16I_EXT:
3685 *datatype = GL_SHORT;
3688 case GL_LUMINANCE_ALPHA32I_EXT:
3692 case GL_LUMINANCE_ALPHA8UI_EXT:
3693 *datatype = GL_UNSIGNED_BYTE;
3696 case GL_LUMINANCE_ALPHA16UI_EXT:
3697 *datatype = GL_UNSIGNED_SHORT;
3700 case GL_LUMINANCE_ALPHA32UI_EXT:
3701 *datatype = GL_UNSIGNED_INT;
3705 *datatype = GL_UNSIGNED_BYTE;
3708 case GL_INTENSITY16:
3709 *datatype = GL_UNSIGNED_SHORT;
3712 case GL_INTENSITY16F_ARB:
3713 *datatype = GL_HALF_FLOAT;
3716 case GL_INTENSITY32F_ARB:
3717 *datatype = GL_FLOAT;
3720 case GL_INTENSITY8I_EXT:
3721 *datatype = GL_BYTE;
3724 case GL_INTENSITY16I_EXT:
3725 *datatype = GL_SHORT;
3728 case GL_INTENSITY32I_EXT:
3732 case GL_INTENSITY8UI_EXT:
3733 *datatype = GL_UNSIGNED_BYTE;
3736 case GL_INTENSITY16UI_EXT:
3737 *datatype = GL_UNSIGNED_SHORT;
3740 case GL_INTENSITY32UI_EXT:
3741 *datatype = GL_UNSIGNED_INT;
3745 *datatype = GL_UNSIGNED_BYTE;
3749 *datatype = GL_UNSIGNED_SHORT;
3752 case GL_RGBA16F_ARB:
3753 *datatype = GL_HALF_FLOAT;
3756 case GL_RGBA32F_ARB:
3757 *datatype = GL_FLOAT;
3761 *datatype = GL_BYTE;
3764 case GL_RGBA16I_EXT:
3765 *datatype = GL_SHORT;
3768 case GL_RGBA32I_EXT:
3772 case GL_RGBA8UI_EXT:
3773 *datatype = GL_UNSIGNED_BYTE;
3776 case GL_RGBA16UI_EXT:
3777 *datatype = GL_UNSIGNED_SHORT;
3780 case GL_RGBA32UI_EXT:
3781 *datatype = GL_UNSIGNED_INT;
3788 if (*datatype == GL_FLOAT && !ctx->Extensions.ARB_texture_float)
3791 if (*datatype == GL_HALF_FLOAT && !ctx->Extensions.ARB_half_float_pixel)
3798 /** GL_ARB_texture_buffer_object */
3800 _mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer)
3802 struct gl_texture_object *texObj;
3803 struct gl_buffer_object *bufObj;
3807 GET_CURRENT_CONTEXT(ctx);
3808 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3810 if (!ctx->Extensions.ARB_texture_buffer_object) {
3811 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer");
3815 if (target != GL_TEXTURE_BUFFER_ARB) {
3816 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(target)");
3820 if (!get_sized_format_info(ctx, internalFormat, &dataType, &comps)) {
3821 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(internalFormat 0x%x)",
3826 bufObj = _mesa_lookup_bufferobj(ctx, buffer);
3827 if (buffer && !bufObj) {
3828 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer(buffer %u)", buffer);
3832 texObj = _mesa_get_current_tex_object(ctx, target);
3834 _mesa_lock_texture(ctx, texObj);
3836 _mesa_reference_buffer_object(ctx, &texObj->BufferObject, bufObj);
3837 texObj->BufferObjectFormat = internalFormat;
3839 _mesa_unlock_texture(ctx, texObj);