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"
54 * State changes which we care about for glCopyTex[Sub]Image() calls.
55 * In particular, we care about pixel transfer state and buffer state
56 * (such as glReadBuffer to make sure we read from the right renderbuffer).
58 #define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
63 * Return the simple base format for a given internal texture format.
64 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
66 * \param ctx GL context.
67 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
69 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
70 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
72 * This is the format which is used during texture application (i.e. the
73 * texture format and env mode determine the arithmetic used.
76 _mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat )
78 switch (internalFormat) {
84 return (ctx->API != API_OPENGL_CORE) ? GL_ALPHA : -1;
91 return (ctx->API != API_OPENGL_CORE) ? GL_LUMINANCE : -1;
93 case GL_LUMINANCE_ALPHA:
94 case GL_LUMINANCE4_ALPHA4:
95 case GL_LUMINANCE6_ALPHA2:
96 case GL_LUMINANCE8_ALPHA8:
97 case GL_LUMINANCE12_ALPHA4:
98 case GL_LUMINANCE12_ALPHA12:
99 case GL_LUMINANCE16_ALPHA16:
100 return (ctx->API != API_OPENGL_CORE) ? GL_LUMINANCE_ALPHA : -1;
106 return (ctx->API != API_OPENGL_CORE) ? GL_INTENSITY : -1;
108 return (ctx->API != API_OPENGL_CORE) ? GL_RGB : -1;
119 return (ctx->API != API_OPENGL_CORE) ? GL_RGBA : -1;
133 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
135 if (_mesa_is_gles(ctx)) {
136 switch (internalFormat) {
144 if (ctx->Extensions.ARB_ES2_compatibility) {
145 switch (internalFormat) {
153 if (ctx->Extensions.ARB_depth_texture) {
154 switch (internalFormat) {
155 case GL_DEPTH_COMPONENT:
156 case GL_DEPTH_COMPONENT16:
157 case GL_DEPTH_COMPONENT24:
158 case GL_DEPTH_COMPONENT32:
159 return GL_DEPTH_COMPONENT;
165 switch (internalFormat) {
166 case GL_COMPRESSED_ALPHA:
168 case GL_COMPRESSED_LUMINANCE:
170 case GL_COMPRESSED_LUMINANCE_ALPHA:
171 return GL_LUMINANCE_ALPHA;
172 case GL_COMPRESSED_INTENSITY:
174 case GL_COMPRESSED_RGB:
176 case GL_COMPRESSED_RGBA:
182 if (ctx->Extensions.TDFX_texture_compression_FXT1) {
183 switch (internalFormat) {
184 case GL_COMPRESSED_RGB_FXT1_3DFX:
186 case GL_COMPRESSED_RGBA_FXT1_3DFX:
193 /* Assume that the ANGLE flag will always be set if the EXT flag is set.
195 if (ctx->Extensions.ANGLE_texture_compression_dxt) {
196 switch (internalFormat) {
197 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
199 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
200 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
201 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
208 if (_mesa_is_desktop_gl(ctx)
209 && ctx->Extensions.ANGLE_texture_compression_dxt) {
210 switch (internalFormat) {
222 if (ctx->Extensions.MESA_ycbcr_texture) {
223 if (internalFormat == GL_YCBCR_MESA)
224 return GL_YCBCR_MESA;
227 if (ctx->Extensions.ARB_texture_float) {
228 switch (internalFormat) {
229 case GL_ALPHA16F_ARB:
230 case GL_ALPHA32F_ARB:
238 case GL_INTENSITY16F_ARB:
239 case GL_INTENSITY32F_ARB:
241 case GL_LUMINANCE16F_ARB:
242 case GL_LUMINANCE32F_ARB:
244 case GL_LUMINANCE_ALPHA16F_ARB:
245 case GL_LUMINANCE_ALPHA32F_ARB:
246 return GL_LUMINANCE_ALPHA;
252 if (ctx->Extensions.ATI_envmap_bumpmap) {
253 switch (internalFormat) {
262 if (ctx->Extensions.EXT_texture_snorm) {
263 switch (internalFormat) {
278 case GL_RGBA16_SNORM:
281 case GL_ALPHA8_SNORM:
282 case GL_ALPHA16_SNORM:
284 case GL_LUMINANCE_SNORM:
285 case GL_LUMINANCE8_SNORM:
286 case GL_LUMINANCE16_SNORM:
288 case GL_LUMINANCE_ALPHA_SNORM:
289 case GL_LUMINANCE8_ALPHA8_SNORM:
290 case GL_LUMINANCE16_ALPHA16_SNORM:
291 return GL_LUMINANCE_ALPHA;
292 case GL_INTENSITY_SNORM:
293 case GL_INTENSITY8_SNORM:
294 case GL_INTENSITY16_SNORM:
301 if (ctx->Extensions.EXT_packed_depth_stencil) {
302 switch (internalFormat) {
303 case GL_DEPTH_STENCIL_EXT:
304 case GL_DEPTH24_STENCIL8_EXT:
305 return GL_DEPTH_STENCIL_EXT;
311 if (ctx->Extensions.EXT_texture_sRGB) {
312 switch (internalFormat) {
315 case GL_COMPRESSED_SRGB_EXT:
316 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
318 case GL_SRGB_ALPHA_EXT:
319 case GL_SRGB8_ALPHA8_EXT:
320 case GL_COMPRESSED_SRGB_ALPHA_EXT:
321 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
322 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
323 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
325 case GL_SLUMINANCE_ALPHA_EXT:
326 case GL_SLUMINANCE8_ALPHA8_EXT:
327 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
328 return GL_LUMINANCE_ALPHA;
329 case GL_SLUMINANCE_EXT:
330 case GL_SLUMINANCE8_EXT:
331 case GL_COMPRESSED_SLUMINANCE_EXT:
338 if (ctx->Version >= 30 ||
339 ctx->Extensions.EXT_texture_integer) {
340 switch (internalFormat) {
342 case GL_RGBA16UI_EXT:
343 case GL_RGBA32UI_EXT:
359 if (ctx->Extensions.EXT_texture_integer) {
360 switch (internalFormat) {
361 case GL_ALPHA8UI_EXT:
362 case GL_ALPHA16UI_EXT:
363 case GL_ALPHA32UI_EXT:
365 case GL_ALPHA16I_EXT:
366 case GL_ALPHA32I_EXT:
368 case GL_INTENSITY8UI_EXT:
369 case GL_INTENSITY16UI_EXT:
370 case GL_INTENSITY32UI_EXT:
371 case GL_INTENSITY8I_EXT:
372 case GL_INTENSITY16I_EXT:
373 case GL_INTENSITY32I_EXT:
375 case GL_LUMINANCE8UI_EXT:
376 case GL_LUMINANCE16UI_EXT:
377 case GL_LUMINANCE32UI_EXT:
378 case GL_LUMINANCE8I_EXT:
379 case GL_LUMINANCE16I_EXT:
380 case GL_LUMINANCE32I_EXT:
382 case GL_LUMINANCE_ALPHA8UI_EXT:
383 case GL_LUMINANCE_ALPHA16UI_EXT:
384 case GL_LUMINANCE_ALPHA32UI_EXT:
385 case GL_LUMINANCE_ALPHA8I_EXT:
386 case GL_LUMINANCE_ALPHA16I_EXT:
387 case GL_LUMINANCE_ALPHA32I_EXT:
388 return GL_LUMINANCE_ALPHA;
394 if (ctx->Extensions.ARB_texture_rg) {
395 switch (internalFormat) {
397 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
399 if (!ctx->Extensions.ARB_half_float_pixel)
403 if (!ctx->Extensions.ARB_texture_float)
412 if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer)
418 case GL_COMPRESSED_RED:
422 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
424 if (!ctx->Extensions.ARB_half_float_pixel)
428 if (!ctx->Extensions.ARB_texture_float)
437 if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer)
443 case GL_COMPRESSED_RG:
450 if (ctx->Extensions.EXT_texture_shared_exponent) {
451 switch (internalFormat) {
459 if (ctx->Extensions.EXT_packed_float) {
460 switch (internalFormat) {
461 case GL_R11F_G11F_B10F_EXT:
468 if (ctx->Extensions.ARB_depth_buffer_float) {
469 switch (internalFormat) {
470 case GL_DEPTH_COMPONENT32F:
471 return GL_DEPTH_COMPONENT;
472 case GL_DEPTH32F_STENCIL8:
473 return GL_DEPTH_STENCIL;
479 if (ctx->Extensions.ARB_texture_compression_rgtc) {
480 switch (internalFormat) {
481 case GL_COMPRESSED_RED_RGTC1:
482 case GL_COMPRESSED_SIGNED_RED_RGTC1:
484 case GL_COMPRESSED_RG_RGTC2:
485 case GL_COMPRESSED_SIGNED_RG_RGTC2:
492 if (ctx->Extensions.EXT_texture_compression_latc) {
493 switch (internalFormat) {
494 case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
495 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
497 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
498 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
499 return GL_LUMINANCE_ALPHA;
505 if (ctx->Extensions.ATI_texture_compression_3dc) {
506 switch (internalFormat) {
507 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
508 return GL_LUMINANCE_ALPHA;
514 if (ctx->Extensions.OES_compressed_ETC1_RGB8_texture) {
515 switch (internalFormat) {
516 case GL_ETC1_RGB8_OES:
523 if (_mesa_is_gles3(ctx)) {
524 switch (internalFormat) {
525 case GL_COMPRESSED_RGB8_ETC2:
526 case GL_COMPRESSED_SRGB8_ETC2:
528 case GL_COMPRESSED_RGBA8_ETC2_EAC:
529 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
530 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
531 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
533 case GL_COMPRESSED_R11_EAC:
534 case GL_COMPRESSED_SIGNED_R11_EAC:
536 case GL_COMPRESSED_RG11_EAC:
537 case GL_COMPRESSED_SIGNED_RG11_EAC:
544 if (ctx->API == API_OPENGLES) {
545 switch (internalFormat) {
546 case GL_PALETTE4_RGB8_OES:
547 case GL_PALETTE4_R5_G6_B5_OES:
548 case GL_PALETTE8_RGB8_OES:
549 case GL_PALETTE8_R5_G6_B5_OES:
551 case GL_PALETTE4_RGBA8_OES:
552 case GL_PALETTE8_RGB5_A1_OES:
553 case GL_PALETTE4_RGBA4_OES:
554 case GL_PALETTE4_RGB5_A1_OES:
555 case GL_PALETTE8_RGBA8_OES:
556 case GL_PALETTE8_RGBA4_OES:
563 return -1; /* error */
568 * For cube map faces, return a face index in [0,5].
569 * For other targets return 0;
572 _mesa_tex_target_to_face(GLenum target)
574 if (_mesa_is_cube_face(target))
575 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
583 * Install gl_texture_image in a gl_texture_object according to the target
584 * and level parameters.
586 * \param tObj texture object.
587 * \param target texture target.
588 * \param level image level.
589 * \param texImage texture image.
592 set_tex_image(struct gl_texture_object *tObj,
593 GLenum target, GLint level,
594 struct gl_texture_image *texImage)
596 const GLuint face = _mesa_tex_target_to_face(target);
600 if (target == GL_TEXTURE_RECTANGLE_NV || target == GL_TEXTURE_EXTERNAL_OES)
603 tObj->Image[face][level] = texImage;
605 /* Set the 'back' pointer */
606 texImage->TexObject = tObj;
607 texImage->Level = level;
608 texImage->Face = face;
613 * Allocate a texture image structure.
615 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
618 * \return a pointer to gl_texture_image struct with all fields initialized to
621 struct gl_texture_image *
622 _mesa_new_texture_image( struct gl_context *ctx )
625 return CALLOC_STRUCT(gl_texture_image);
630 * Free a gl_texture_image and associated data.
631 * This function is a fallback called via ctx->Driver.DeleteTextureImage().
633 * \param texImage texture image.
635 * Free the texture image structure and the associated image data.
638 _mesa_delete_texture_image(struct gl_context *ctx,
639 struct gl_texture_image *texImage)
641 /* Free texImage->Data and/or any other driver-specific texture
644 ASSERT(ctx->Driver.FreeTextureImageBuffer);
645 ctx->Driver.FreeTextureImageBuffer( ctx, texImage );
651 * Test if a target is a proxy target.
653 * \param target texture target.
655 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
658 _mesa_is_proxy_texture(GLenum target)
661 * NUM_TEXTURE_TARGETS should match number of terms below, except there's no
662 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
664 assert(NUM_TEXTURE_TARGETS == 8 + 2);
666 return (target == GL_PROXY_TEXTURE_1D ||
667 target == GL_PROXY_TEXTURE_2D ||
668 target == GL_PROXY_TEXTURE_3D ||
669 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
670 target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
671 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
672 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT ||
673 target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY);
678 * Return the proxy target which corresponds to the given texture target
681 _mesa_get_proxy_target(GLenum target)
685 case GL_PROXY_TEXTURE_1D:
686 return GL_PROXY_TEXTURE_1D;
688 case GL_PROXY_TEXTURE_2D:
689 return GL_PROXY_TEXTURE_2D;
691 case GL_PROXY_TEXTURE_3D:
692 return GL_PROXY_TEXTURE_3D;
693 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
694 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
695 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
696 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
697 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
698 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
699 case GL_TEXTURE_CUBE_MAP_ARB:
700 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
701 return GL_PROXY_TEXTURE_CUBE_MAP_ARB;
702 case GL_TEXTURE_RECTANGLE_NV:
703 case GL_PROXY_TEXTURE_RECTANGLE_NV:
704 return GL_PROXY_TEXTURE_RECTANGLE_NV;
705 case GL_TEXTURE_1D_ARRAY_EXT:
706 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
707 return GL_PROXY_TEXTURE_1D_ARRAY_EXT;
708 case GL_TEXTURE_2D_ARRAY_EXT:
709 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
710 return GL_PROXY_TEXTURE_2D_ARRAY_EXT;
711 case GL_TEXTURE_CUBE_MAP_ARRAY:
712 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
713 return GL_PROXY_TEXTURE_CUBE_MAP_ARRAY;
715 _mesa_problem(NULL, "unexpected target in _mesa_get_proxy_target()");
722 * Get the texture object that corresponds to the target of the given
723 * texture unit. The target should have already been checked for validity.
725 * \param ctx GL context.
726 * \param texUnit texture unit.
727 * \param target texture target.
729 * \return pointer to the texture object on success, or NULL on failure.
731 struct gl_texture_object *
732 _mesa_select_tex_object(struct gl_context *ctx,
733 const struct gl_texture_unit *texUnit,
736 const GLboolean arrayTex = (ctx->Extensions.MESA_texture_array ||
737 ctx->Extensions.EXT_texture_array);
741 return texUnit->CurrentTex[TEXTURE_1D_INDEX];
742 case GL_PROXY_TEXTURE_1D:
743 return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
745 return texUnit->CurrentTex[TEXTURE_2D_INDEX];
746 case GL_PROXY_TEXTURE_2D:
747 return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
749 return texUnit->CurrentTex[TEXTURE_3D_INDEX];
750 case GL_PROXY_TEXTURE_3D:
751 return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
752 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
753 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
754 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
755 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
756 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
757 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
758 case GL_TEXTURE_CUBE_MAP_ARB:
759 return ctx->Extensions.ARB_texture_cube_map
760 ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL;
761 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
762 return ctx->Extensions.ARB_texture_cube_map
763 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL;
764 case GL_TEXTURE_CUBE_MAP_ARRAY:
765 return ctx->Extensions.ARB_texture_cube_map_array
766 ? texUnit->CurrentTex[TEXTURE_CUBE_ARRAY_INDEX] : NULL;
767 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
768 return ctx->Extensions.ARB_texture_cube_map_array
769 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_ARRAY_INDEX] : NULL;
770 case GL_TEXTURE_RECTANGLE_NV:
771 return ctx->Extensions.NV_texture_rectangle
772 ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL;
773 case GL_PROXY_TEXTURE_RECTANGLE_NV:
774 return ctx->Extensions.NV_texture_rectangle
775 ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL;
776 case GL_TEXTURE_1D_ARRAY_EXT:
777 return arrayTex ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
778 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
779 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
780 case GL_TEXTURE_2D_ARRAY_EXT:
781 return arrayTex ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
782 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
783 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
784 case GL_TEXTURE_BUFFER:
785 return ctx->API == API_OPENGL_CORE &&
786 ctx->Extensions.ARB_texture_buffer_object ?
787 texUnit->CurrentTex[TEXTURE_BUFFER_INDEX] : NULL;
788 case GL_TEXTURE_EXTERNAL_OES:
789 return ctx->Extensions.OES_EGL_image_external
790 ? texUnit->CurrentTex[TEXTURE_EXTERNAL_INDEX] : NULL;
792 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
799 * Return pointer to texture object for given target on current texture unit.
801 struct gl_texture_object *
802 _mesa_get_current_tex_object(struct gl_context *ctx, GLenum target)
804 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
805 return _mesa_select_tex_object(ctx, texUnit, target);
810 * Get a texture image pointer from a texture object, given a texture
811 * target and mipmap level. The target and level parameters should
812 * have already been error-checked.
814 * \param ctx GL context.
815 * \param texObj texture unit.
816 * \param target texture target.
817 * \param level image level.
819 * \return pointer to the texture image structure, or NULL on failure.
821 struct gl_texture_image *
822 _mesa_select_tex_image(struct gl_context *ctx,
823 const struct gl_texture_object *texObj,
824 GLenum target, GLint level)
826 const GLuint face = _mesa_tex_target_to_face(target);
830 ASSERT(level < MAX_TEXTURE_LEVELS);
832 return texObj->Image[face][level];
837 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
838 * it and install it. Only return NULL if passed a bad parameter or run
841 struct gl_texture_image *
842 _mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj,
843 GLenum target, GLint level)
845 struct gl_texture_image *texImage;
850 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
852 texImage = ctx->Driver.NewTextureImage(ctx);
854 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
858 set_tex_image(texObj, target, level, texImage);
866 * Return pointer to the specified proxy texture image.
867 * Note that proxy textures are per-context, not per-texture unit.
868 * \return pointer to texture image or NULL if invalid target, invalid
869 * level, or out of memory.
871 static struct gl_texture_image *
872 get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level)
874 struct gl_texture_image *texImage;
881 case GL_PROXY_TEXTURE_1D:
882 if (level >= ctx->Const.MaxTextureLevels)
884 texIndex = TEXTURE_1D_INDEX;
886 case GL_PROXY_TEXTURE_2D:
887 if (level >= ctx->Const.MaxTextureLevels)
889 texIndex = TEXTURE_2D_INDEX;
891 case GL_PROXY_TEXTURE_3D:
892 if (level >= ctx->Const.Max3DTextureLevels)
894 texIndex = TEXTURE_3D_INDEX;
896 case GL_PROXY_TEXTURE_CUBE_MAP:
897 if (level >= ctx->Const.MaxCubeTextureLevels)
899 texIndex = TEXTURE_CUBE_INDEX;
901 case GL_PROXY_TEXTURE_RECTANGLE_NV:
904 texIndex = TEXTURE_RECT_INDEX;
906 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
907 if (level >= ctx->Const.MaxTextureLevels)
909 texIndex = TEXTURE_1D_ARRAY_INDEX;
911 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
912 if (level >= ctx->Const.MaxTextureLevels)
914 texIndex = TEXTURE_2D_ARRAY_INDEX;
916 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
917 if (level >= ctx->Const.MaxCubeTextureLevels)
919 texIndex = TEXTURE_CUBE_ARRAY_INDEX;
925 texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level];
927 texImage = ctx->Driver.NewTextureImage(ctx);
929 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
932 ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage;
933 /* Set the 'back' pointer */
934 texImage->TexObject = ctx->Texture.ProxyTex[texIndex];
941 * Get the maximum number of allowed mipmap levels.
943 * \param ctx GL context.
944 * \param target texture target.
946 * \return the maximum number of allowed mipmap levels for the given
947 * texture target, or zero if passed a bad target.
952 _mesa_max_texture_levels(struct gl_context *ctx, GLenum target)
956 case GL_PROXY_TEXTURE_1D:
958 case GL_PROXY_TEXTURE_2D:
959 return ctx->Const.MaxTextureLevels;
961 case GL_PROXY_TEXTURE_3D:
962 return ctx->Const.Max3DTextureLevels;
963 case GL_TEXTURE_CUBE_MAP:
964 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
965 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
966 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
967 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
968 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
969 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
970 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
971 return ctx->Extensions.ARB_texture_cube_map
972 ? ctx->Const.MaxCubeTextureLevels : 0;
973 case GL_TEXTURE_RECTANGLE_NV:
974 case GL_PROXY_TEXTURE_RECTANGLE_NV:
975 return ctx->Extensions.NV_texture_rectangle ? 1 : 0;
976 case GL_TEXTURE_1D_ARRAY_EXT:
977 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
978 case GL_TEXTURE_2D_ARRAY_EXT:
979 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
980 return (ctx->Extensions.MESA_texture_array ||
981 ctx->Extensions.EXT_texture_array)
982 ? ctx->Const.MaxTextureLevels : 0;
983 case GL_TEXTURE_CUBE_MAP_ARRAY:
984 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
985 return ctx->Extensions.ARB_texture_cube_map_array
986 ? ctx->Const.MaxCubeTextureLevels : 0;
987 case GL_TEXTURE_BUFFER:
988 return ctx->API == API_OPENGL_CORE &&
989 ctx->Extensions.ARB_texture_buffer_object ? 1 : 0;
990 case GL_TEXTURE_EXTERNAL_OES:
993 return 0; /* bad target */
999 * Return number of dimensions per mipmap level for the given texture target.
1002 _mesa_get_texture_dimensions(GLenum target)
1006 case GL_PROXY_TEXTURE_1D:
1009 case GL_TEXTURE_RECTANGLE:
1010 case GL_TEXTURE_CUBE_MAP:
1011 case GL_PROXY_TEXTURE_2D:
1012 case GL_PROXY_TEXTURE_RECTANGLE:
1013 case GL_PROXY_TEXTURE_CUBE_MAP:
1014 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1015 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1016 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1017 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1018 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1019 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1020 case GL_TEXTURE_1D_ARRAY:
1021 case GL_PROXY_TEXTURE_1D_ARRAY:
1022 case GL_TEXTURE_EXTERNAL_OES:
1025 case GL_PROXY_TEXTURE_3D:
1026 case GL_TEXTURE_2D_ARRAY:
1027 case GL_PROXY_TEXTURE_2D_ARRAY:
1028 case GL_TEXTURE_CUBE_MAP_ARRAY:
1029 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1031 case GL_TEXTURE_BUFFER:
1034 _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()",
1042 * Return the maximum number of mipmap levels for the given target
1043 * and the dimensions.
1044 * The dimensions are expected not to include the border.
1047 _mesa_get_tex_max_num_levels(GLenum target, GLsizei width, GLsizei height,
1054 case GL_TEXTURE_1D_ARRAY:
1057 case GL_TEXTURE_CUBE_MAP:
1058 case GL_TEXTURE_CUBE_MAP_ARRAY:
1059 ASSERT(width == height);
1063 case GL_TEXTURE_2D_ARRAY:
1064 size = MAX2(width, height);
1067 size = MAX3(width, height, depth);
1069 case GL_TEXTURE_RECTANGLE:
1070 case GL_TEXTURE_EXTERNAL_OES:
1077 return _mesa_logbase2(size) + 1;
1081 #if 000 /* not used anymore */
1083 * glTexImage[123]D can accept a NULL image pointer. In this case we
1084 * create a texture image with unspecified image contents per the OpenGL
1088 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
1090 const GLint components = _mesa_components_in_format(format);
1091 const GLint numPixels = width * height * depth;
1092 GLubyte *data = (GLubyte *) malloc(numPixels * components * sizeof(GLubyte));
1096 * Let's see if anyone finds this. If glTexImage2D() is called with
1097 * a NULL image pointer then load the texture image with something
1098 * interesting instead of leaving it indeterminate.
1101 static const char message[8][32] = {
1102 " X X XXXXX XXX X ",
1103 " XX XX X X X X X ",
1105 " X X XXXX XXX XXXXX ",
1108 " X X XXXXX XXX X X ",
1112 GLubyte *imgPtr = data;
1114 for (h = 0; h < depth; h++) {
1115 for (i = 0; i < height; i++) {
1116 GLint srcRow = 7 - (i % 8);
1117 for (j = 0; j < width; j++) {
1118 GLint srcCol = j % 32;
1119 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
1120 for (k = 0; k < components; k++) {
1136 * Set the size and format-related fields of a gl_texture_image struct
1137 * to zero. This is used when a proxy texture test fails.
1140 clear_teximage_fields(struct gl_texture_image *img)
1143 img->_BaseFormat = 0;
1144 img->InternalFormat = 0;
1153 img->HeightLog2 = 0;
1155 img->TexFormat = MESA_FORMAT_NONE;
1160 * Initialize basic fields of the gl_texture_image struct.
1162 * \param ctx GL context.
1163 * \param img texture image structure to be initialized.
1164 * \param width image width.
1165 * \param height image height.
1166 * \param depth image depth.
1167 * \param border image border.
1168 * \param internalFormat internal format.
1169 * \param format the actual hardware format (one of MESA_FORMAT_*)
1171 * Fills in the fields of \p img with the given information.
1172 * Note: width, height and depth include the border.
1175 _mesa_init_teximage_fields(struct gl_context *ctx,
1176 struct gl_texture_image *img,
1177 GLsizei width, GLsizei height, GLsizei depth,
1178 GLint border, GLenum internalFormat,
1184 ASSERT(height >= 0);
1187 target = img->TexObject->Target;
1188 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
1189 ASSERT(img->_BaseFormat > 0);
1190 img->InternalFormat = internalFormat;
1191 img->Border = border;
1193 img->Height = height;
1196 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
1197 img->WidthLog2 = _mesa_logbase2(img->Width2);
1201 case GL_TEXTURE_BUFFER:
1202 case GL_PROXY_TEXTURE_1D:
1207 img->HeightLog2 = 0;
1214 case GL_TEXTURE_1D_ARRAY:
1215 case GL_PROXY_TEXTURE_1D_ARRAY:
1216 img->Height2 = height; /* no border */
1217 img->HeightLog2 = 0; /* not used */
1225 case GL_TEXTURE_RECTANGLE:
1226 case GL_TEXTURE_CUBE_MAP:
1227 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1228 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1229 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1230 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1231 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1232 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1233 case GL_TEXTURE_EXTERNAL_OES:
1234 case GL_PROXY_TEXTURE_2D:
1235 case GL_PROXY_TEXTURE_RECTANGLE:
1236 case GL_PROXY_TEXTURE_CUBE_MAP:
1237 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1238 img->HeightLog2 = _mesa_logbase2(img->Height2);
1245 case GL_TEXTURE_2D_ARRAY:
1246 case GL_PROXY_TEXTURE_2D_ARRAY:
1247 case GL_TEXTURE_CUBE_MAP_ARRAY:
1248 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1249 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1250 img->HeightLog2 = _mesa_logbase2(img->Height2);
1251 img->Depth2 = depth; /* no border */
1252 img->DepthLog2 = 0; /* not used */
1255 case GL_PROXY_TEXTURE_3D:
1256 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1257 img->HeightLog2 = _mesa_logbase2(img->Height2);
1258 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
1259 img->DepthLog2 = _mesa_logbase2(img->Depth2);
1262 _mesa_problem(NULL, "invalid target 0x%x in _mesa_init_teximage_fields()",
1267 _mesa_get_tex_max_num_levels(target,
1268 img->Width2, img->Height2, img->Depth2);
1269 img->TexFormat = format;
1274 * Free and clear fields of the gl_texture_image struct.
1276 * \param ctx GL context.
1277 * \param texImage texture image structure to be cleared.
1279 * After the call, \p texImage will have no data associated with it. Its
1280 * fields are cleared so that its parent object will test incomplete.
1283 _mesa_clear_texture_image(struct gl_context *ctx,
1284 struct gl_texture_image *texImage)
1286 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
1287 clear_teximage_fields(texImage);
1292 * Check the width, height, depth and border of a texture image are legal.
1293 * Used by all the glTexImage, glCompressedTexImage and glCopyTexImage
1295 * The target and level parameters will have already been validated.
1296 * \return GL_TRUE if size is OK, GL_FALSE otherwise.
1299 _mesa_legal_texture_dimensions(struct gl_context *ctx, GLenum target,
1300 GLint level, GLint width, GLint height,
1301 GLint depth, GLint border)
1307 case GL_PROXY_TEXTURE_1D:
1308 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); /* level zero size */
1309 maxSize >>= level; /* level size */
1310 if (width < 2 * border || width > 2 * border + maxSize)
1312 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1313 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1319 case GL_PROXY_TEXTURE_2D:
1320 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1322 if (width < 2 * border || width > 2 * border + maxSize)
1324 if (height < 2 * border || height > 2 * border + maxSize)
1326 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1327 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1329 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1335 case GL_PROXY_TEXTURE_3D:
1336 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1338 if (width < 2 * border || width > 2 * border + maxSize)
1340 if (height < 2 * border || height > 2 * border + maxSize)
1342 if (depth < 2 * border || depth > 2 * border + maxSize)
1344 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1345 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1347 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1349 if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border))
1354 case GL_TEXTURE_RECTANGLE_NV:
1355 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1358 maxSize = ctx->Const.MaxTextureRectSize;
1359 if (width < 0 || width > maxSize)
1361 if (height < 0 || height > maxSize)
1365 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1366 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1367 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1368 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1369 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1370 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1371 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1372 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1374 if (width < 2 * border || width > 2 * border + maxSize)
1376 if (height < 2 * border || height > 2 * border + maxSize)
1378 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1379 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1381 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1386 case GL_TEXTURE_1D_ARRAY_EXT:
1387 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1388 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1390 if (width < 2 * border || width > 2 * border + maxSize)
1392 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers)
1394 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1395 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1400 case GL_TEXTURE_2D_ARRAY_EXT:
1401 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1402 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1404 if (width < 2 * border || width > 2 * border + maxSize)
1406 if (height < 2 * border || height > 2 * border + maxSize)
1408 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers)
1410 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1411 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1413 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1418 case GL_TEXTURE_CUBE_MAP_ARRAY:
1419 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1420 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1421 if (width < 2 * border || width > 2 * border + maxSize)
1423 if (height < 2 * border || height > 2 * border + maxSize)
1425 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers)
1427 if (level >= ctx->Const.MaxCubeTextureLevels)
1429 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1430 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1432 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1437 _mesa_problem(ctx, "Invalid target in _mesa_legal_texture_dimensions()");
1444 * Do error checking of xoffset, yoffset, zoffset, width, height and depth
1445 * for glTexSubImage, glCopyTexSubImage and glCompressedTexSubImage.
1446 * \param destImage the destination texture image.
1447 * \return GL_TRUE if error found, GL_FALSE otherwise.
1450 error_check_subtexture_dimensions(struct gl_context *ctx,
1451 const char *function, GLuint dims,
1452 const struct gl_texture_image *destImage,
1453 GLint xoffset, GLint yoffset, GLint zoffset,
1454 GLsizei subWidth, GLsizei subHeight,
1457 const GLenum target = destImage->TexObject->Target;
1462 _mesa_error(ctx, GL_INVALID_VALUE,
1463 "%s%dD(width=%d)", function, dims, subWidth);
1467 if (dims > 1 && subHeight < 0) {
1468 _mesa_error(ctx, GL_INVALID_VALUE,
1469 "%s%dD(height=%d)", function, dims, subHeight);
1473 if (dims > 2 && subDepth < 0) {
1474 _mesa_error(ctx, GL_INVALID_VALUE,
1475 "%s%dD(depth=%d)", function, dims, subDepth);
1479 /* check xoffset and width */
1480 if (xoffset < -destImage->Border) {
1481 _mesa_error(ctx, GL_INVALID_VALUE, "%s%dD(xoffset)",
1486 if (xoffset + subWidth > destImage->Width) {
1487 _mesa_error(ctx, GL_INVALID_VALUE, "%s%dD(xoffset+width)",
1492 /* check yoffset and height */
1494 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : destImage->Border;
1495 if (yoffset < -yBorder) {
1496 _mesa_error(ctx, GL_INVALID_VALUE, "%s%dD(yoffset)",
1500 if (yoffset + subHeight > destImage->Height) {
1501 _mesa_error(ctx, GL_INVALID_VALUE, "%s%dD(yoffset+height)",
1507 /* check zoffset and depth */
1509 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : destImage->Border;
1510 if (zoffset < -zBorder) {
1511 _mesa_error(ctx, GL_INVALID_VALUE, "%s3D(zoffset)", function);
1514 if (zoffset + subDepth > (GLint) destImage->Depth) {
1515 _mesa_error(ctx, GL_INVALID_VALUE, "%s3D(zoffset+depth)", function);
1521 * The OpenGL spec (and GL_ARB_texture_compression) says only whole
1522 * compressed texture images can be updated. But, that restriction may be
1523 * relaxed for particular compressed formats. At this time, all the
1524 * compressed formats supported by Mesa allow sub-textures to be updated
1525 * along compressed block boundaries.
1527 _mesa_get_format_block_size(destImage->TexFormat, &bw, &bh);
1529 if (bw != 1 || bh != 1) {
1530 /* offset must be multiple of block size */
1531 if ((xoffset % bw != 0) || (yoffset % bh != 0)) {
1532 _mesa_error(ctx, GL_INVALID_OPERATION,
1533 "%s%dD(xoffset = %d, yoffset = %d)",
1534 function, dims, xoffset, yoffset);
1538 /* size must be multiple of bw by bh or equal to whole texture size */
1539 if ((subWidth % bw != 0) && subWidth != destImage->Width) {
1540 _mesa_error(ctx, GL_INVALID_OPERATION,
1541 "%s%dD(width = %d)", function, dims, subWidth);
1545 if ((subHeight % bh != 0) && subHeight != destImage->Height) {
1546 _mesa_error(ctx, GL_INVALID_OPERATION,
1547 "%s%dD(height = %d)", function, dims, subHeight);
1559 * This is the fallback for Driver.TestProxyTexImage() for doing device-
1560 * specific texture image size checks.
1562 * A hardware driver might override this function if, for example, the
1563 * max 3D texture size is 512x512x64 (i.e. not a cube).
1565 * Note that width, height, depth == 0 is not an error. However, a
1566 * texture with zero width/height/depth will be considered "incomplete"
1567 * and texturing will effectively be disabled.
1569 * \param target any texture target/type
1570 * \param level as passed to glTexImage
1571 * \param format the MESA_FORMAT_x for the tex image
1572 * \param width as passed to glTexImage
1573 * \param height as passed to glTexImage
1574 * \param depth as passed to glTexImage
1575 * \param border as passed to glTexImage
1576 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1579 _mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
1581 GLint width, GLint height, GLint depth, GLint border)
1583 /* We just check if the image size is less than MaxTextureMbytes.
1584 * Some drivers may do more specific checks.
1586 uint64_t bytes = _mesa_format_image_size64(format, width, height, depth);
1587 uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */
1588 mbytes *= _mesa_num_tex_faces(target);
1589 return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes;
1594 * Return true if the format is only valid for glCompressedTexImage.
1597 compressedteximage_only_format(const struct gl_context *ctx, GLenum format)
1600 case GL_ETC1_RGB8_OES:
1601 case GL_PALETTE4_RGB8_OES:
1602 case GL_PALETTE4_RGBA8_OES:
1603 case GL_PALETTE4_R5_G6_B5_OES:
1604 case GL_PALETTE4_RGBA4_OES:
1605 case GL_PALETTE4_RGB5_A1_OES:
1606 case GL_PALETTE8_RGB8_OES:
1607 case GL_PALETTE8_RGBA8_OES:
1608 case GL_PALETTE8_R5_G6_B5_OES:
1609 case GL_PALETTE8_RGBA4_OES:
1610 case GL_PALETTE8_RGB5_A1_OES:
1619 * Helper function to determine whether a target and specific compression
1620 * format are supported.
1623 target_can_be_compressed(const struct gl_context *ctx, GLenum target,
1626 (void) intFormat; /* not used yet */
1630 case GL_PROXY_TEXTURE_2D:
1631 return GL_TRUE; /* true for any compressed format so far */
1632 case GL_PROXY_TEXTURE_CUBE_MAP:
1633 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1634 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1635 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1636 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1637 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1638 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1639 return ctx->Extensions.ARB_texture_cube_map;
1640 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1641 case GL_TEXTURE_2D_ARRAY_EXT:
1642 return (ctx->Extensions.MESA_texture_array ||
1643 ctx->Extensions.EXT_texture_array);
1644 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1645 case GL_TEXTURE_CUBE_MAP_ARRAY:
1646 return ctx->Extensions.ARB_texture_cube_map_array;
1654 * Check if the given texture target value is legal for a
1655 * glTexImage1/2/3D call.
1658 legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target)
1664 case GL_PROXY_TEXTURE_1D:
1665 return _mesa_is_desktop_gl(ctx);
1673 case GL_PROXY_TEXTURE_2D:
1674 return _mesa_is_desktop_gl(ctx);
1675 case GL_PROXY_TEXTURE_CUBE_MAP:
1676 return _mesa_is_desktop_gl(ctx)
1677 && ctx->Extensions.ARB_texture_cube_map;
1678 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1679 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1680 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1681 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1682 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1683 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1684 return ctx->Extensions.ARB_texture_cube_map;
1685 case GL_TEXTURE_RECTANGLE_NV:
1686 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1687 return _mesa_is_desktop_gl(ctx)
1688 && ctx->Extensions.NV_texture_rectangle;
1689 case GL_TEXTURE_1D_ARRAY_EXT:
1690 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1691 return _mesa_is_desktop_gl(ctx)
1692 && (ctx->Extensions.MESA_texture_array ||
1693 ctx->Extensions.EXT_texture_array);
1701 case GL_PROXY_TEXTURE_3D:
1702 return _mesa_is_desktop_gl(ctx);
1703 case GL_TEXTURE_2D_ARRAY_EXT:
1704 return (_mesa_is_desktop_gl(ctx)
1705 && (ctx->Extensions.MESA_texture_array ||
1706 ctx->Extensions.EXT_texture_array))
1707 || _mesa_is_gles3(ctx);
1708 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1709 return _mesa_is_desktop_gl(ctx)
1710 && (ctx->Extensions.MESA_texture_array ||
1711 ctx->Extensions.EXT_texture_array);
1712 case GL_TEXTURE_CUBE_MAP_ARRAY:
1713 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1714 return ctx->Extensions.ARB_texture_cube_map_array;
1719 _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims);
1726 * Check if the given texture target value is legal for a
1727 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1728 * The difference compared to legal_teximage_target() above is that
1729 * proxy targets are not supported.
1732 legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target)
1736 return _mesa_is_desktop_gl(ctx) && target == GL_TEXTURE_1D;
1741 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1742 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1743 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1744 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1745 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1746 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1747 return ctx->Extensions.ARB_texture_cube_map;
1748 case GL_TEXTURE_RECTANGLE_NV:
1749 return _mesa_is_desktop_gl(ctx)
1750 && ctx->Extensions.NV_texture_rectangle;
1751 case GL_TEXTURE_1D_ARRAY_EXT:
1752 return _mesa_is_desktop_gl(ctx)
1753 && (ctx->Extensions.MESA_texture_array ||
1754 ctx->Extensions.EXT_texture_array);
1762 case GL_TEXTURE_2D_ARRAY_EXT:
1763 return (_mesa_is_desktop_gl(ctx)
1764 && (ctx->Extensions.MESA_texture_array ||
1765 ctx->Extensions.EXT_texture_array))
1766 || _mesa_is_gles3(ctx);
1767 case GL_TEXTURE_CUBE_MAP_ARRAY:
1768 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1769 return ctx->Extensions.ARB_texture_cube_map_array;
1774 _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()",
1782 * Helper function to determine if a texture object is mutable (in terms
1783 * of GL_ARB_texture_storage).
1786 mutable_tex_object(struct gl_context *ctx, GLenum target)
1788 if (ctx->Extensions.ARB_texture_storage) {
1789 struct gl_texture_object *texObj =
1790 _mesa_get_current_tex_object(ctx, target);
1791 return !texObj->Immutable;
1798 * Return expected size of a compressed texture.
1801 compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth,
1804 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
1805 return _mesa_format_image_size(mesaFormat, width, height, depth);
1810 * Test the glTexImage[123]D() parameters for errors.
1812 * \param ctx GL context.
1813 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1814 * \param target texture target given by the user (already validated).
1815 * \param level image level given by the user.
1816 * \param internalFormat internal format given by the user.
1817 * \param format pixel data format given by the user.
1818 * \param type pixel data type given by the user.
1819 * \param width image width given by the user.
1820 * \param height image height given by the user.
1821 * \param depth image depth given by the user.
1822 * \param border image border given by the user.
1824 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1826 * Verifies each of the parameters against the constants specified in
1827 * __struct gl_contextRec::Const and the supported extensions, and according
1828 * to the OpenGL specification.
1829 * Note that we don't fully error-check the width, height, depth values
1830 * here. That's done in _mesa_legal_texture_dimensions() which is used
1831 * by several other GL entrypoints. Plus, texture dims have a special
1832 * interaction with proxy textures.
1835 texture_error_check( struct gl_context *ctx,
1836 GLuint dimensions, GLenum target,
1837 GLint level, GLint internalFormat,
1838 GLenum format, GLenum type,
1839 GLint width, GLint height,
1840 GLint depth, GLint border )
1842 GLboolean colorFormat;
1845 /* Even though there are no color-index textures, we still have to support
1846 * uploading color-index data and remapping it to RGB via the
1847 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1849 const GLboolean indexFormat = (format == GL_COLOR_INDEX);
1851 /* Note: for proxy textures, some error conditions immediately generate
1852 * a GL error in the usual way. But others do not generate a GL error.
1853 * Instead, they cause the width, height, depth, format fields of the
1854 * texture image to be zeroed-out. The GL spec seems to indicate that the
1855 * zero-out behaviour is only used in cases related to memory allocation.
1859 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
1860 _mesa_error(ctx, GL_INVALID_VALUE,
1861 "glTexImage%dD(level=%d)", dimensions, level);
1866 if (border < 0 || border > 1 ||
1867 ((ctx->API != API_OPENGL_COMPAT ||
1868 target == GL_TEXTURE_RECTANGLE_NV ||
1869 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1870 _mesa_error(ctx, GL_INVALID_VALUE,
1871 "glTexImage%dD(border=%d)", dimensions, border);
1875 if (width < 0 || height < 0 || depth < 0) {
1876 _mesa_error(ctx, GL_INVALID_VALUE,
1877 "glTexImage%dD(width, height or depth < 0)", dimensions);
1881 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1882 * combinations of format, internalFormat, and type that can be used.
1883 * Formats and types that require additional extensions (e.g., GL_FLOAT
1884 * requires GL_OES_texture_float) are filtered elsewhere.
1887 if (_mesa_is_gles(ctx)) {
1888 if (_mesa_is_gles3(ctx)) {
1889 err = _mesa_es3_error_check_format_and_type(format, type,
1892 if (format != internalFormat) {
1893 _mesa_error(ctx, GL_INVALID_OPERATION,
1894 "glTexImage%dD(format = %s, internalFormat = %s)",
1896 _mesa_lookup_enum_by_nr(format),
1897 _mesa_lookup_enum_by_nr(internalFormat));
1901 err = _mesa_es_error_check_format_and_type(format, type, dimensions);
1903 if (err != GL_NO_ERROR) {
1904 _mesa_error(ctx, err,
1905 "glTexImage%dD(format = %s, type = %s, internalFormat = %s)",
1907 _mesa_lookup_enum_by_nr(format),
1908 _mesa_lookup_enum_by_nr(type),
1909 _mesa_lookup_enum_by_nr(internalFormat));
1914 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
1915 _mesa_is_cube_face(target)) && width != height) {
1916 _mesa_error(ctx, GL_INVALID_VALUE,
1917 "glTexImage2D(cube width != height)");
1921 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY ||
1922 target == GL_TEXTURE_CUBE_MAP_ARRAY) && width != height) {
1923 _mesa_error(ctx, GL_INVALID_VALUE,
1924 "glTexImage3D(cube array width != height)");
1928 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY ||
1929 target == GL_TEXTURE_CUBE_MAP_ARRAY) && (depth % 6)) {
1930 _mesa_error(ctx, GL_INVALID_VALUE,
1931 "glTexImage3D(cube array depth not multiple of 6)");
1935 /* Check internalFormat */
1936 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1937 _mesa_error(ctx, GL_INVALID_VALUE,
1938 "glTexImage%dD(internalFormat=%s)",
1939 dimensions, _mesa_lookup_enum_by_nr(internalFormat));
1943 /* Check incoming image format and type */
1944 err = _mesa_error_check_format_and_type(ctx, format, type);
1945 if (err != GL_NO_ERROR) {
1946 _mesa_error(ctx, err,
1947 "glTexImage%dD(incompatible format = %s, type = %s)",
1948 dimensions, _mesa_lookup_enum_by_nr(format),
1949 _mesa_lookup_enum_by_nr(type));
1953 /* make sure internal format and format basically agree */
1954 colorFormat = _mesa_is_color_format(format);
1955 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
1956 (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) ||
1957 (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) ||
1958 (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) ||
1959 (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) {
1960 _mesa_error(ctx, GL_INVALID_OPERATION,
1961 "glTexImage%dD(incompatible internalFormat = %s, format = %s)",
1962 dimensions, _mesa_lookup_enum_by_nr(internalFormat),
1963 _mesa_lookup_enum_by_nr(format));
1967 /* additional checks for ycbcr textures */
1968 if (internalFormat == GL_YCBCR_MESA) {
1969 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1970 if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1971 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
1973 _mesa_snprintf(message, sizeof(message),
1974 "glTexImage%dD(format/type YCBCR mismatch)",
1976 _mesa_error(ctx, GL_INVALID_ENUM, "%s", message);
1977 return GL_TRUE; /* error */
1979 if (target != GL_TEXTURE_2D &&
1980 target != GL_PROXY_TEXTURE_2D &&
1981 target != GL_TEXTURE_RECTANGLE_NV &&
1982 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1983 _mesa_error(ctx, GL_INVALID_ENUM,
1984 "glTexImage%dD(bad target for YCbCr texture)",
1990 _mesa_snprintf(message, sizeof(message),
1991 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1992 dimensions, border);
1993 _mesa_error(ctx, GL_INVALID_VALUE, "%s", message);
1998 /* additional checks for depth textures */
1999 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT
2000 || _mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_STENCIL) {
2001 /* Only 1D, 2D, rect, array and cube textures supported, not 3D
2002 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */
2003 if (target != GL_TEXTURE_1D &&
2004 target != GL_PROXY_TEXTURE_1D &&
2005 target != GL_TEXTURE_2D &&
2006 target != GL_PROXY_TEXTURE_2D &&
2007 target != GL_TEXTURE_1D_ARRAY &&
2008 target != GL_PROXY_TEXTURE_1D_ARRAY &&
2009 target != GL_TEXTURE_2D_ARRAY &&
2010 target != GL_PROXY_TEXTURE_2D_ARRAY &&
2011 target != GL_TEXTURE_RECTANGLE_ARB &&
2012 target != GL_PROXY_TEXTURE_RECTANGLE_ARB &&
2013 !((_mesa_is_cube_face(target) || target == GL_PROXY_TEXTURE_CUBE_MAP) &&
2014 (ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4
2015 || (ctx->API == API_OPENGLES2 && ctx->Extensions.OES_depth_texture_cube_map))) &&
2016 !((target == GL_TEXTURE_CUBE_MAP_ARRAY ||
2017 target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY) &&
2018 ctx->Extensions.ARB_texture_cube_map_array)) {
2019 _mesa_error(ctx, GL_INVALID_ENUM,
2020 "glTexImage%dD(bad target for depth texture)",
2026 /* additional checks for compressed textures */
2027 if (_mesa_is_compressed_format(ctx, internalFormat)) {
2028 if (!target_can_be_compressed(ctx, target, internalFormat)) {
2029 _mesa_error(ctx, GL_INVALID_ENUM,
2030 "glTexImage%dD(target can't be compressed)", dimensions);
2033 if (compressedteximage_only_format(ctx, internalFormat)) {
2034 _mesa_error(ctx, GL_INVALID_OPERATION,
2035 "glTexImage%dD(no compression for format)", dimensions);
2039 _mesa_error(ctx, GL_INVALID_OPERATION,
2040 "glTexImage%dD(border!=0)", dimensions);
2045 /* additional checks for integer textures */
2046 if ((ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) &&
2047 (_mesa_is_enum_format_integer(format) !=
2048 _mesa_is_enum_format_integer(internalFormat))) {
2049 _mesa_error(ctx, GL_INVALID_OPERATION,
2050 "glTexImage%dD(integer/non-integer format mismatch)",
2055 if (!mutable_tex_object(ctx, target)) {
2056 _mesa_error(ctx, GL_INVALID_OPERATION,
2057 "glTexImage%dD(immutable texture)", dimensions);
2061 /* if we get here, the parameters are OK */
2067 * Error checking for glCompressedTexImage[123]D().
2068 * Note that the width, height and depth values are not fully error checked
2070 * \return GL_TRUE if a error is found, GL_FALSE otherwise
2073 compressed_texture_error_check(struct gl_context *ctx, GLint dimensions,
2074 GLenum target, GLint level,
2075 GLenum internalFormat, GLsizei width,
2076 GLsizei height, GLsizei depth, GLint border,
2079 const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
2081 GLenum error = GL_NO_ERROR;
2082 char *reason = ""; /* no error */
2084 if (!target_can_be_compressed(ctx, target, internalFormat)) {
2086 error = GL_INVALID_ENUM;
2090 /* This will detect any invalid internalFormat value */
2091 if (!_mesa_is_compressed_format(ctx, internalFormat)) {
2092 reason = "internalFormat";
2093 error = GL_INVALID_ENUM;
2097 switch (internalFormat) {
2098 case GL_PALETTE4_RGB8_OES:
2099 case GL_PALETTE4_RGBA8_OES:
2100 case GL_PALETTE4_R5_G6_B5_OES:
2101 case GL_PALETTE4_RGBA4_OES:
2102 case GL_PALETTE4_RGB5_A1_OES:
2103 case GL_PALETTE8_RGB8_OES:
2104 case GL_PALETTE8_RGBA8_OES:
2105 case GL_PALETTE8_R5_G6_B5_OES:
2106 case GL_PALETTE8_RGBA4_OES:
2107 case GL_PALETTE8_RGB5_A1_OES:
2108 /* check level (note that level should be zero or less!) */
2109 if (level > 0 || level < -maxLevels) {
2111 error = GL_INVALID_VALUE;
2115 if (dimensions != 2) {
2116 reason = "compressed paletted textures must be 2D";
2117 error = GL_INVALID_OPERATION;
2121 /* Figure out the expected texture size (in bytes). This will be
2122 * checked against the actual size later.
2124 expectedSize = _mesa_cpal_compressed_size(level, internalFormat,
2127 /* This is for the benefit of the TestProxyTexImage below. It expects
2128 * level to be non-negative. OES_compressed_paletted_texture uses a
2129 * weird mechanism where the level specified to glCompressedTexImage2D
2130 * is -(n-1) number of levels in the texture, and the data specifies the
2131 * complete mipmap stack. This is done to ensure the palette is the
2132 * same for all levels.
2139 if (level < 0 || level >= maxLevels) {
2141 error = GL_INVALID_VALUE;
2145 /* Figure out the expected texture size (in bytes). This will be
2146 * checked against the actual size later.
2148 expectedSize = compressed_tex_size(width, height, depth, internalFormat);
2152 /* This should really never fail */
2153 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
2154 reason = "internalFormat";
2155 error = GL_INVALID_ENUM;
2159 /* No compressed formats support borders at this time */
2161 reason = "border != 0";
2162 error = GL_INVALID_VALUE;
2166 /* For cube map, width must equal height */
2167 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
2168 _mesa_is_cube_face(target)) && width != height) {
2169 reason = "width != height";
2170 error = GL_INVALID_VALUE;
2174 /* check image size in bytes */
2175 if (expectedSize != imageSize) {
2176 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
2177 * if <imageSize> is not consistent with the format, dimensions, and
2178 * contents of the specified image.
2180 reason = "imageSize inconsistant with width/height/format";
2181 error = GL_INVALID_VALUE;
2185 if (!mutable_tex_object(ctx, target)) {
2186 reason = "immutable texture";
2187 error = GL_INVALID_OPERATION;
2194 _mesa_error(ctx, error, "glCompressedTexImage%dD(%s)", dimensions, reason);
2201 * Test glTexSubImage[123]D() parameters for errors.
2203 * \param ctx GL context.
2204 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2205 * \param target texture target given by the user (already validated)
2206 * \param level image level given by the user.
2207 * \param xoffset sub-image x offset given by the user.
2208 * \param yoffset sub-image y offset given by the user.
2209 * \param zoffset sub-image z offset given by the user.
2210 * \param format pixel data format given by the user.
2211 * \param type pixel data type given by the user.
2212 * \param width image width given by the user.
2213 * \param height image height given by the user.
2214 * \param depth image depth given by the user.
2216 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2218 * Verifies each of the parameters against the constants specified in
2219 * __struct gl_contextRec::Const and the supported extensions, and according
2220 * to the OpenGL specification.
2223 texsubimage_error_check(struct gl_context *ctx, GLuint dimensions,
2224 GLenum target, GLint level,
2225 GLint xoffset, GLint yoffset, GLint zoffset,
2226 GLint width, GLint height, GLint depth,
2227 GLenum format, GLenum type)
2229 struct gl_texture_object *texObj;
2230 struct gl_texture_image *texImage;
2233 /* check target (proxies not allowed) */
2234 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2235 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)",
2236 dimensions, _mesa_lookup_enum_by_nr(target));
2241 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
2242 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(level=%d)",
2247 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2248 * combinations of format and type that can be used. Formats and types
2249 * that require additional extensions (e.g., GL_FLOAT requires
2250 * GL_OES_texture_float) are filtered elsewhere.
2252 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) {
2253 err = _mesa_es_error_check_format_and_type(format, type, dimensions);
2254 if (err != GL_NO_ERROR) {
2255 _mesa_error(ctx, err,
2256 "glTexSubImage%dD(format = %s, type = %s)",
2258 _mesa_lookup_enum_by_nr(format),
2259 _mesa_lookup_enum_by_nr(type));
2264 err = _mesa_error_check_format_and_type(ctx, format, type);
2265 if (err != GL_NO_ERROR) {
2266 _mesa_error(ctx, err,
2267 "glTexSubImage%dD(incompatible format = %s, type = %s)",
2268 dimensions, _mesa_lookup_enum_by_nr(format),
2269 _mesa_lookup_enum_by_nr(type));
2273 /* Get dest texture object / image pointers */
2274 texObj = _mesa_get_current_tex_object(ctx, target);
2276 /* must be out of memory */
2277 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage%dD()", dimensions);
2281 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2283 /* non-existant texture level */
2284 _mesa_error(ctx, GL_INVALID_OPERATION,
2285 "glTexSubImage%dD(invalid texture image)", dimensions);
2289 if (error_check_subtexture_dimensions(ctx, "glTexSubImage", dimensions,
2290 texImage, xoffset, yoffset, 0,
2291 width, height, 1)) {
2295 if (_mesa_is_format_compressed(texImage->TexFormat)) {
2296 if (compressedteximage_only_format(ctx, texImage->InternalFormat)) {
2297 _mesa_error(ctx, GL_INVALID_OPERATION,
2298 "glTexSubImage%dD(no compression for format)", dimensions);
2303 if (ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) {
2304 /* both source and dest must be integer-valued, or neither */
2305 if (_mesa_is_format_integer_color(texImage->TexFormat) !=
2306 _mesa_is_enum_format_integer(format)) {
2307 _mesa_error(ctx, GL_INVALID_OPERATION,
2308 "glTexSubImage%dD(integer/non-integer format mismatch)",
2319 * Test glCopyTexImage[12]D() parameters for errors.
2321 * \param ctx GL context.
2322 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2323 * \param target texture target given by the user.
2324 * \param level image level given by the user.
2325 * \param internalFormat internal format given by the user.
2326 * \param width image width given by the user.
2327 * \param height image height given by the user.
2328 * \param border texture border.
2330 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2332 * Verifies each of the parameters against the constants specified in
2333 * __struct gl_contextRec::Const and the supported extensions, and according
2334 * to the OpenGL specification.
2337 copytexture_error_check( struct gl_context *ctx, GLuint dimensions,
2338 GLenum target, GLint level, GLint internalFormat,
2339 GLint width, GLint height, GLint border )
2342 GLint rb_base_format;
2343 struct gl_renderbuffer *rb;
2344 GLenum rb_internal_format;
2347 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2348 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)",
2349 dimensions, _mesa_lookup_enum_by_nr(target));
2354 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
2355 _mesa_error(ctx, GL_INVALID_VALUE,
2356 "glCopyTexImage%dD(level=%d)", dimensions, level);
2360 /* Check that the source buffer is complete */
2361 if (_mesa_is_user_fbo(ctx->ReadBuffer)) {
2362 if (ctx->ReadBuffer->_Status == 0) {
2363 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2365 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2366 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2367 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2371 if (ctx->ReadBuffer->Visual.samples > 0) {
2372 _mesa_error(ctx, GL_INVALID_OPERATION,
2373 "glCopyTexImage%dD(multisample FBO)",
2380 if (border < 0 || border > 1 ||
2381 ((ctx->API != API_OPENGL_COMPAT ||
2382 target == GL_TEXTURE_RECTANGLE_NV ||
2383 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
2384 _mesa_error(ctx, GL_INVALID_VALUE,
2385 "glCopyTexImage%dD(border=%d)", dimensions, border);
2389 rb = _mesa_get_read_renderbuffer_for_format(ctx, internalFormat);
2391 _mesa_error(ctx, GL_INVALID_OPERATION,
2392 "glCopyTexImage%dD(read buffer)", dimensions);
2396 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2399 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) {
2400 switch (internalFormat) {
2405 case GL_LUMINANCE_ALPHA:
2408 _mesa_error(ctx, GL_INVALID_VALUE,
2409 "glCopyTexImage%dD(internalFormat)", dimensions);
2414 baseFormat = _mesa_base_tex_format(ctx, internalFormat);
2415 if (baseFormat < 0) {
2416 _mesa_error(ctx, GL_INVALID_OPERATION,
2417 "glCopyTexImage%dD(internalFormat)", dimensions);
2421 rb_internal_format = rb->InternalFormat;
2422 rb_base_format = _mesa_base_tex_format(ctx, rb->InternalFormat);
2423 if (_mesa_is_color_format(internalFormat)) {
2424 if (rb_base_format < 0) {
2425 _mesa_error(ctx, GL_INVALID_VALUE,
2426 "glCopyTexImage%dD(internalFormat)", dimensions);
2431 if (_mesa_is_gles(ctx)) {
2433 if (_mesa_base_format_component_count(baseFormat) >
2434 _mesa_base_format_component_count(rb_base_format)) {
2437 if (baseFormat == GL_DEPTH_COMPONENT ||
2438 baseFormat == GL_DEPTH_STENCIL ||
2439 rb_base_format == GL_DEPTH_COMPONENT ||
2440 rb_base_format == GL_DEPTH_STENCIL ||
2441 ((baseFormat == GL_LUMINANCE_ALPHA ||
2442 baseFormat == GL_ALPHA) &&
2443 rb_base_format != GL_RGBA) ||
2444 internalFormat == GL_RGB9_E5) {
2447 if (internalFormat == GL_RGB9_E5) {
2451 _mesa_error(ctx, GL_INVALID_OPERATION,
2452 "glCopyTexImage%dD(internalFormat)", dimensions);
2457 if ((_mesa_is_desktop_gl(ctx) &&
2458 ctx->Extensions.ARB_framebuffer_object) ||
2459 _mesa_is_gles3(ctx)) {
2460 bool rb_is_srgb = false;
2461 bool dst_is_srgb = false;
2463 if (ctx->Extensions.EXT_framebuffer_sRGB &&
2464 _mesa_get_format_color_encoding(rb->Format) == GL_SRGB) {
2468 if (_mesa_get_linear_internalformat(internalFormat) != internalFormat) {
2472 if (rb_is_srgb != dst_is_srgb) {
2473 /* Page 190 (page 211 of the PDF) in section 8.6 of the OpenGL 4.3
2474 * Core Profile spec says:
2476 * "An INVALID_OPERATION error is generated under any of the
2477 * following conditions:
2481 * - if the value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
2482 * for the framebuffer attachment corresponding to the read
2483 * buffer is LINEAR (see section 9.2.3) and internalformat
2484 * is one of the sRGB formats in table 8.23
2485 * - if the value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
2486 * for the framebuffer attachment corresponding to the read
2487 * buffer is SRGB and internalformat is not one of the sRGB
2488 * formats. in table 8.23."
2490 _mesa_error(ctx, GL_INVALID_OPERATION,
2491 "glCopyTexImage%dD(srgb usage mismatch)", dimensions);
2496 if (!_mesa_source_buffer_exists(ctx, baseFormat)) {
2497 _mesa_error(ctx, GL_INVALID_OPERATION,
2498 "glCopyTexImage%dD(missing readbuffer)", dimensions);
2502 /* From the EXT_texture_integer spec:
2504 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2505 * if the texture internalformat is an integer format and the read color
2506 * buffer is not an integer format, or if the internalformat is not an
2507 * integer format and the read color buffer is an integer format."
2509 if (_mesa_is_color_format(internalFormat)) {
2510 bool is_int = _mesa_is_enum_format_integer(internalFormat);
2511 bool is_rbint = _mesa_is_enum_format_integer(rb_internal_format);
2512 if (is_int || is_rbint) {
2513 if (is_int != is_rbint) {
2514 _mesa_error(ctx, GL_INVALID_OPERATION,
2515 "glCopyTexImage%dD(integer vs non-integer)", dimensions);
2517 } else if (_mesa_is_gles(ctx) &&
2518 _mesa_is_enum_format_unsigned_int(internalFormat) !=
2519 _mesa_is_enum_format_unsigned_int(rb_internal_format)) {
2520 _mesa_error(ctx, GL_INVALID_OPERATION,
2521 "glCopyTexImage%dD(signed vs unsigned integer)", dimensions);
2527 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
2528 _mesa_is_cube_face(target)) && width != height) {
2529 _mesa_error(ctx, GL_INVALID_VALUE,
2530 "glTexImage2D(cube width != height)");
2534 if (_mesa_is_compressed_format(ctx, internalFormat)) {
2535 if (!target_can_be_compressed(ctx, target, internalFormat)) {
2536 _mesa_error(ctx, GL_INVALID_ENUM,
2537 "glCopyTexImage%dD(target)", dimensions);
2540 if (compressedteximage_only_format(ctx, internalFormat)) {
2541 _mesa_error(ctx, GL_INVALID_OPERATION,
2542 "glCopyTexImage%dD(no compression for format)", dimensions);
2546 _mesa_error(ctx, GL_INVALID_OPERATION,
2547 "glCopyTexImage%dD(border!=0)", dimensions);
2552 if (!mutable_tex_object(ctx, target)) {
2553 _mesa_error(ctx, GL_INVALID_OPERATION,
2554 "glCopyTexImage%dD(immutable texture)", dimensions);
2558 /* if we get here, the parameters are OK */
2564 * Test glCopyTexSubImage[12]D() parameters for errors.
2565 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2568 copytexsubimage_error_check(struct gl_context *ctx, GLuint dimensions,
2569 GLenum target, GLint level,
2570 GLint xoffset, GLint yoffset, GLint zoffset,
2571 GLint width, GLint height)
2573 struct gl_texture_object *texObj;
2574 struct gl_texture_image *texImage;
2576 /* Check that the source buffer is complete */
2577 if (_mesa_is_user_fbo(ctx->ReadBuffer)) {
2578 if (ctx->ReadBuffer->_Status == 0) {
2579 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2581 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2582 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2583 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2587 if (ctx->ReadBuffer->Visual.samples > 0) {
2588 _mesa_error(ctx, GL_INVALID_OPERATION,
2589 "glCopyTexSubImage%dD(multisample FBO)",
2595 /* check target (proxies not allowed) */
2596 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2597 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)",
2598 dimensions, _mesa_lookup_enum_by_nr(target));
2603 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
2604 _mesa_error(ctx, GL_INVALID_VALUE,
2605 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
2609 /* Get dest texture object / image pointers */
2610 texObj = _mesa_get_current_tex_object(ctx, target);
2612 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage%dD()", dimensions);
2616 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2618 /* destination image does not exist */
2619 _mesa_error(ctx, GL_INVALID_OPERATION,
2620 "glCopyTexSubImage%dD(invalid texture image)", dimensions);
2624 if (error_check_subtexture_dimensions(ctx, "glCopyTexSubImage",
2625 dimensions, texImage,
2626 xoffset, yoffset, zoffset,
2627 width, height, 1)) {
2631 if (_mesa_is_format_compressed(texImage->TexFormat)) {
2632 if (compressedteximage_only_format(ctx, texImage->InternalFormat)) {
2633 _mesa_error(ctx, GL_INVALID_OPERATION,
2634 "glCopyTexSubImage%dD(no compression for format)", dimensions);
2639 if (texImage->InternalFormat == GL_YCBCR_MESA) {
2640 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
2644 if (!_mesa_source_buffer_exists(ctx, texImage->_BaseFormat)) {
2645 _mesa_error(ctx, GL_INVALID_OPERATION,
2646 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2647 dimensions, texImage->_BaseFormat);
2651 /* From the EXT_texture_integer spec:
2653 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2654 * if the texture internalformat is an integer format and the read color
2655 * buffer is not an integer format, or if the internalformat is not an
2656 * integer format and the read color buffer is an integer format."
2658 if (_mesa_is_color_format(texImage->InternalFormat)) {
2659 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
2661 if (_mesa_is_format_integer_color(rb->Format) !=
2662 _mesa_is_format_integer_color(texImage->TexFormat)) {
2663 _mesa_error(ctx, GL_INVALID_OPERATION,
2664 "glCopyTexImage%dD(integer vs non-integer)", dimensions);
2669 /* if we get here, the parameters are OK */
2674 /** Callback info for walking over FBO hash table */
2677 struct gl_context *ctx;
2678 struct gl_texture_object *texObj;
2684 * Check render to texture callback. Called from _mesa_HashWalk().
2687 check_rtt_cb(GLuint key, void *data, void *userData)
2689 struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
2690 const struct cb_info *info = (struct cb_info *) userData;
2691 struct gl_context *ctx = info->ctx;
2692 const struct gl_texture_object *texObj = info->texObj;
2693 const GLuint level = info->level, face = info->face;
2695 /* If this is a user-created FBO */
2696 if (_mesa_is_user_fbo(fb)) {
2698 /* check if any of the FBO's attachments point to 'texObj' */
2699 for (i = 0; i < BUFFER_COUNT; i++) {
2700 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
2701 if (att->Type == GL_TEXTURE &&
2702 att->Texture == texObj &&
2703 att->TextureLevel == level &&
2704 att->CubeMapFace == face) {
2705 ASSERT(_mesa_get_attachment_teximage(att));
2706 /* Tell driver about the new renderbuffer texture */
2707 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
2708 /* Mark fb status as indeterminate to force re-validation */
2717 * When a texture image is specified we have to check if it's bound to
2718 * any framebuffer objects (render to texture) in order to detect changes
2719 * in size or format since that effects FBO completeness.
2720 * Any FBOs rendering into the texture must be re-validated.
2723 _mesa_update_fbo_texture(struct gl_context *ctx,
2724 struct gl_texture_object *texObj,
2725 GLuint face, GLuint level)
2727 /* Only check this texture if it's been marked as RenderToTexture */
2728 if (texObj->_RenderToTexture) {
2729 struct cb_info info;
2731 info.texObj = texObj;
2734 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info);
2740 * If the texture object's GenerateMipmap flag is set and we've
2741 * changed the texture base level image, regenerate the rest of the
2742 * mipmap levels now.
2745 check_gen_mipmap(struct gl_context *ctx, GLenum target,
2746 struct gl_texture_object *texObj, GLint level)
2748 ASSERT(target != GL_TEXTURE_CUBE_MAP);
2749 if (texObj->GenerateMipmap &&
2750 level == texObj->BaseLevel &&
2751 level < texObj->MaxLevel) {
2752 ASSERT(ctx->Driver.GenerateMipmap);
2753 ctx->Driver.GenerateMipmap(ctx, target, texObj);
2758 /** Debug helper: override the user-requested internal format */
2760 override_internal_format(GLenum internalFormat, GLint width, GLint height)
2763 if (internalFormat == GL_RGBA16F_ARB ||
2764 internalFormat == GL_RGBA32F_ARB) {
2765 printf("Convert rgba float tex to int %d x %d\n", width, height);
2768 else if (internalFormat == GL_RGB16F_ARB ||
2769 internalFormat == GL_RGB32F_ARB) {
2770 printf("Convert rgb float tex to int %d x %d\n", width, height);
2773 else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB ||
2774 internalFormat == GL_LUMINANCE_ALPHA32F_ARB) {
2775 printf("Convert luminance float tex to int %d x %d\n", width, height);
2776 return GL_LUMINANCE_ALPHA;
2778 else if (internalFormat == GL_LUMINANCE16F_ARB ||
2779 internalFormat == GL_LUMINANCE32F_ARB) {
2780 printf("Convert luminance float tex to int %d x %d\n", width, height);
2781 return GL_LUMINANCE;
2783 else if (internalFormat == GL_ALPHA16F_ARB ||
2784 internalFormat == GL_ALPHA32F_ARB) {
2785 printf("Convert luminance float tex to int %d x %d\n", width, height);
2789 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2790 internalFormat = GL_RGBA;
2794 return internalFormat;
2797 return internalFormat;
2803 * Choose the actual hardware format for a texture image.
2804 * Try to use the same format as the previous image level when possible.
2805 * Otherwise, ask the driver for the best format.
2806 * It's important to try to choose a consistant format for all levels
2807 * for efficient texture memory layout/allocation. In particular, this
2808 * comes up during automatic mipmap generation.
2811 _mesa_choose_texture_format(struct gl_context *ctx,
2812 struct gl_texture_object *texObj,
2813 GLenum target, GLint level,
2814 GLenum internalFormat, GLenum format, GLenum type)
2818 /* see if we've already chosen a format for the previous level */
2820 struct gl_texture_image *prevImage =
2821 _mesa_select_tex_image(ctx, texObj, target, level - 1);
2822 /* See if the prev level is defined and has an internal format which
2823 * matches the new internal format.
2826 prevImage->Width > 0 &&
2827 prevImage->InternalFormat == internalFormat) {
2828 /* use the same format */
2829 ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE);
2830 return prevImage->TexFormat;
2834 /* If the application requested compression to an S3TC format but we don't
2835 * have the DTXn library, force a generic compressed format instead.
2837 if (internalFormat != format && format != GL_NONE) {
2838 const GLenum before = internalFormat;
2840 switch (internalFormat) {
2841 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
2842 if (!ctx->Mesa_DXTn)
2843 internalFormat = GL_COMPRESSED_RGB;
2845 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
2846 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
2847 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
2848 if (!ctx->Mesa_DXTn)
2849 internalFormat = GL_COMPRESSED_RGBA;
2855 if (before != internalFormat) {
2857 "DXT compression requested (%s), "
2858 "but libtxc_dxtn library not installed. Using %s "
2860 _mesa_lookup_enum_by_nr(before),
2861 _mesa_lookup_enum_by_nr(internalFormat));
2865 /* choose format from scratch */
2866 f = ctx->Driver.ChooseTextureFormat(ctx, texObj->Target, internalFormat,
2868 ASSERT(f != MESA_FORMAT_NONE);
2873 * Adjust pixel unpack params and image dimensions to strip off the
2874 * one-pixel texture border.
2876 * Gallium and intel don't support texture borders. They've seldem been used
2877 * and seldom been implemented correctly anyway.
2879 * \param unpackNew returns the new pixel unpack parameters
2882 strip_texture_border(GLenum target,
2883 GLint *width, GLint *height, GLint *depth,
2884 const struct gl_pixelstore_attrib *unpack,
2885 struct gl_pixelstore_attrib *unpackNew)
2891 *unpackNew = *unpack;
2893 if (unpackNew->RowLength == 0)
2894 unpackNew->RowLength = *width;
2896 if (unpackNew->ImageHeight == 0)
2897 unpackNew->ImageHeight = *height;
2899 assert(*width >= 3);
2900 unpackNew->SkipPixels++; /* skip the border */
2901 *width = *width - 2; /* reduce the width by two border pixels */
2903 /* The min height of a texture with a border is 3 */
2904 if (*height >= 3 && target != GL_TEXTURE_1D_ARRAY) {
2905 unpackNew->SkipRows++; /* skip the border */
2906 *height = *height - 2; /* reduce the height by two border pixels */
2909 if (*depth >= 3 && target != GL_TEXTURE_2D_ARRAY && target != GL_TEXTURE_CUBE_MAP_ARRAY) {
2910 unpackNew->SkipImages++; /* skip the border */
2911 *depth = *depth - 2; /* reduce the depth by two border pixels */
2917 * Common code to implement all the glTexImage1D/2D/3D functions
2918 * as well as glCompressedTexImage1D/2D/3D.
2919 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls.
2920 * \param format the user's image format (only used if !compressed)
2921 * \param type the user's image type (only used if !compressed)
2922 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls.
2925 teximage(struct gl_context *ctx, GLboolean compressed, GLuint dims,
2926 GLenum target, GLint level, GLint internalFormat,
2927 GLsizei width, GLsizei height, GLsizei depth,
2928 GLint border, GLenum format, GLenum type,
2929 GLsizei imageSize, const GLvoid *pixels)
2931 const char *func = compressed ? "glCompressedTexImage" : "glTexImage";
2932 struct gl_pixelstore_attrib unpack_no_border;
2933 const struct gl_pixelstore_attrib *unpack = &ctx->Unpack;
2934 struct gl_texture_object *texObj;
2935 gl_format texFormat;
2936 GLboolean dimensionsOK, sizeOK;
2938 FLUSH_VERTICES(ctx, 0);
2940 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) {
2943 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n",
2945 _mesa_lookup_enum_by_nr(target), level,
2946 _mesa_lookup_enum_by_nr(internalFormat),
2947 width, height, depth, border, pixels);
2950 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2952 _mesa_lookup_enum_by_nr(target), level,
2953 _mesa_lookup_enum_by_nr(internalFormat),
2954 width, height, depth, border,
2955 _mesa_lookup_enum_by_nr(format),
2956 _mesa_lookup_enum_by_nr(type), pixels);
2959 internalFormat = override_internal_format(internalFormat, width, height);
2961 /* target error checking */
2962 if (!legal_teximage_target(ctx, dims, target)) {
2963 _mesa_error(ctx, GL_INVALID_ENUM, "%s%uD(target=%s)",
2964 func, dims, _mesa_lookup_enum_by_nr(target));
2968 /* general error checking */
2970 if (compressed_texture_error_check(ctx, dims, target, level,
2972 width, height, depth,
2977 if (texture_error_check(ctx, dims, target, level, internalFormat,
2978 format, type, width, height, depth, border))
2982 /* Here we convert a cpal compressed image into a regular glTexImage2D
2983 * call by decompressing the texture. If we really want to support cpal
2984 * textures in any driver this would have to be changed.
2986 if (ctx->API == API_OPENGLES && compressed && dims == 2) {
2987 switch (internalFormat) {
2988 case GL_PALETTE4_RGB8_OES:
2989 case GL_PALETTE4_RGBA8_OES:
2990 case GL_PALETTE4_R5_G6_B5_OES:
2991 case GL_PALETTE4_RGBA4_OES:
2992 case GL_PALETTE4_RGB5_A1_OES:
2993 case GL_PALETTE8_RGB8_OES:
2994 case GL_PALETTE8_RGBA8_OES:
2995 case GL_PALETTE8_R5_G6_B5_OES:
2996 case GL_PALETTE8_RGBA4_OES:
2997 case GL_PALETTE8_RGB5_A1_OES:
2998 _mesa_cpal_compressed_teximage2d(target, level, internalFormat,
2999 width, height, imageSize, pixels);
3004 texObj = _mesa_get_current_tex_object(ctx, target);
3007 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
3008 internalFormat, format, type);
3009 assert(texFormat != MESA_FORMAT_NONE);
3011 /* check that width, height, depth are legal for the mipmap level */
3012 dimensionsOK = _mesa_legal_texture_dimensions(ctx, target, level, width,
3013 height, depth, border);
3015 /* check that the texture won't take too much memory, etc */
3016 sizeOK = ctx->Driver.TestProxyTexImage(ctx, _mesa_get_proxy_target(target),
3018 width, height, depth, border);
3020 if (_mesa_is_proxy_texture(target)) {
3021 /* Proxy texture: just clear or set state depending on error checking */
3022 struct gl_texture_image *texImage =
3023 get_proxy_tex_image(ctx, target, level);
3026 return; /* GL_OUT_OF_MEMORY already recorded */
3028 if (dimensionsOK && sizeOK) {
3029 _mesa_init_teximage_fields(ctx, texImage, width, height, depth,
3030 border, internalFormat, texFormat);
3033 clear_teximage_fields(texImage);
3037 /* non-proxy target */
3038 const GLuint face = _mesa_tex_target_to_face(target);
3039 struct gl_texture_image *texImage;
3041 if (!dimensionsOK) {
3042 _mesa_error(ctx, GL_INVALID_VALUE,
3043 "glTexImage%uD(invalid width or height or depth)",
3049 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3050 "glTexImage%uD(image too large)", dims);
3054 /* Allow a hardware driver to just strip out the border, to provide
3055 * reliable but slightly incorrect hardware rendering instead of
3056 * rarely-tested software fallback rendering.
3058 if (border && ctx->Const.StripTextureBorder) {
3059 strip_texture_border(target, &width, &height, &depth, unpack,
3062 unpack = &unpack_no_border;
3065 if (ctx->NewState & _NEW_PIXEL)
3066 _mesa_update_state(ctx);
3068 _mesa_lock_texture(ctx, texObj);
3070 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3073 _mesa_error(ctx, GL_OUT_OF_MEMORY, "%s%uD", func, dims);
3076 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3078 _mesa_init_teximage_fields(ctx, texImage,
3079 width, height, depth,
3080 border, internalFormat, texFormat);
3082 /* Give the texture to the driver. <pixels> may be null. */
3083 if (width > 0 && height > 0 && depth > 0) {
3085 ctx->Driver.CompressedTexImage(ctx, dims, texImage,
3089 ctx->Driver.TexImage(ctx, dims, texImage, format,
3090 type, pixels, unpack);
3094 check_gen_mipmap(ctx, target, texObj, level);
3096 _mesa_update_fbo_texture(ctx, texObj, face, level);
3098 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
3101 _mesa_unlock_texture(ctx, texObj);
3108 * Called from the API. Note that width includes the border.
3111 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
3112 GLsizei width, GLint border, GLenum format,
3113 GLenum type, const GLvoid *pixels )
3115 GET_CURRENT_CONTEXT(ctx);
3116 teximage(ctx, GL_FALSE, 1, target, level, internalFormat, width, 1, 1,
3117 border, format, type, 0, pixels);
3122 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
3123 GLsizei width, GLsizei height, GLint border,
3124 GLenum format, GLenum type,
3125 const GLvoid *pixels )
3127 GET_CURRENT_CONTEXT(ctx);
3128 teximage(ctx, GL_FALSE, 2, target, level, internalFormat, width, height, 1,
3129 border, format, type, 0, pixels);
3134 * Called by the API or display list executor.
3135 * Note that width and height include the border.
3138 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
3139 GLsizei width, GLsizei height, GLsizei depth,
3140 GLint border, GLenum format, GLenum type,
3141 const GLvoid *pixels )
3143 GET_CURRENT_CONTEXT(ctx);
3144 teximage(ctx, GL_FALSE, 3, target, level, internalFormat,
3145 width, height, depth,
3146 border, format, type, 0, pixels);
3151 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
3152 GLsizei width, GLsizei height, GLsizei depth,
3153 GLint border, GLenum format, GLenum type,
3154 const GLvoid *pixels )
3156 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
3157 depth, border, format, type, pixels);
3162 _mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image)
3164 struct gl_texture_object *texObj;
3165 struct gl_texture_image *texImage;
3167 GET_CURRENT_CONTEXT(ctx);
3168 FLUSH_VERTICES(ctx, 0);
3172 valid_target = ctx->Extensions.OES_EGL_image;
3174 case GL_TEXTURE_EXTERNAL_OES:
3175 valid_target = ctx->Extensions.OES_EGL_image_external;
3178 valid_target = false;
3182 if (!valid_target) {
3183 _mesa_error(ctx, GL_INVALID_ENUM,
3184 "glEGLImageTargetTexture2D(target=%d)", target);
3188 if (ctx->NewState & _NEW_PIXEL)
3189 _mesa_update_state(ctx);
3191 texObj = _mesa_get_current_tex_object(ctx, target);
3192 _mesa_lock_texture(ctx, texObj);
3194 if (texObj->Immutable) {
3195 _mesa_error(ctx, GL_INVALID_OPERATION,
3196 "glEGLImageTargetTexture2D(texture is immutable)");
3197 _mesa_unlock_texture(ctx, texObj);
3201 texImage = _mesa_get_tex_image(ctx, texObj, target, 0);
3203 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D");
3205 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3207 ctx->Driver.EGLImageTargetTexture2D(ctx, target,
3208 texObj, texImage, image);
3210 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
3212 _mesa_unlock_texture(ctx, texObj);
3219 * Implement all the glTexSubImage1/2/3D() functions.
3222 texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
3223 GLint xoffset, GLint yoffset, GLint zoffset,
3224 GLsizei width, GLsizei height, GLsizei depth,
3225 GLenum format, GLenum type, const GLvoid *pixels )
3227 struct gl_texture_object *texObj;
3228 struct gl_texture_image *texImage;
3230 FLUSH_VERTICES(ctx, 0);
3232 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3233 _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
3235 _mesa_lookup_enum_by_nr(target), level,
3236 xoffset, yoffset, zoffset, width, height, depth,
3237 _mesa_lookup_enum_by_nr(format),
3238 _mesa_lookup_enum_by_nr(type), pixels);
3240 /* check target (proxies not allowed) */
3241 if (!legal_texsubimage_target(ctx, dims, target)) {
3242 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)",
3243 dims, _mesa_lookup_enum_by_nr(target));
3247 if (ctx->NewState & _NEW_PIXEL)
3248 _mesa_update_state(ctx);
3250 if (texsubimage_error_check(ctx, dims, target, level,
3251 xoffset, yoffset, zoffset,
3252 width, height, depth, format, type)) {
3253 return; /* error was detected */
3256 texObj = _mesa_get_current_tex_object(ctx, target);
3258 _mesa_lock_texture(ctx, texObj);
3260 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3262 if (width > 0 && height > 0 && depth > 0) {
3263 /* If we have a border, offset=-1 is legal. Bias by border width. */
3266 if (target != GL_TEXTURE_2D_ARRAY)
3267 zoffset += texImage->Border;
3270 if (target != GL_TEXTURE_1D_ARRAY)
3271 yoffset += texImage->Border;
3274 xoffset += texImage->Border;
3277 ctx->Driver.TexSubImage(ctx, dims, texImage,
3278 xoffset, yoffset, zoffset,
3279 width, height, depth,
3280 format, type, pixels, &ctx->Unpack);
3282 check_gen_mipmap(ctx, target, texObj, level);
3284 ctx->NewState |= _NEW_TEXTURE;
3287 _mesa_unlock_texture(ctx, texObj);
3292 _mesa_TexSubImage1D( GLenum target, GLint level,
3293 GLint xoffset, GLsizei width,
3294 GLenum format, GLenum type,
3295 const GLvoid *pixels )
3297 GET_CURRENT_CONTEXT(ctx);
3298 texsubimage(ctx, 1, target, level,
3301 format, type, pixels);
3306 _mesa_TexSubImage2D( GLenum target, GLint level,
3307 GLint xoffset, GLint yoffset,
3308 GLsizei width, GLsizei height,
3309 GLenum format, GLenum type,
3310 const GLvoid *pixels )
3312 GET_CURRENT_CONTEXT(ctx);
3313 texsubimage(ctx, 2, target, level,
3314 xoffset, yoffset, 0,
3316 format, type, pixels);
3322 _mesa_TexSubImage3D( GLenum target, GLint level,
3323 GLint xoffset, GLint yoffset, GLint zoffset,
3324 GLsizei width, GLsizei height, GLsizei depth,
3325 GLenum format, GLenum type,
3326 const GLvoid *pixels )
3328 GET_CURRENT_CONTEXT(ctx);
3329 texsubimage(ctx, 3, target, level,
3330 xoffset, yoffset, zoffset,
3331 width, height, depth,
3332 format, type, pixels);
3338 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3339 * from. This depends on whether the texture contains color or depth values.
3341 static struct gl_renderbuffer *
3342 get_copy_tex_image_source(struct gl_context *ctx, gl_format texFormat)
3344 if (_mesa_get_format_bits(texFormat, GL_DEPTH_BITS) > 0) {
3345 /* reading from depth/stencil buffer */
3346 return ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer;
3349 /* copying from color buffer */
3350 return ctx->ReadBuffer->_ColorReadBuffer;
3357 * Implement the glCopyTexImage1/2D() functions.
3360 copyteximage(struct gl_context *ctx, GLuint dims,
3361 GLenum target, GLint level, GLenum internalFormat,
3362 GLint x, GLint y, GLsizei width, GLsizei height, GLint border )
3364 struct gl_texture_object *texObj;
3365 struct gl_texture_image *texImage;
3366 const GLuint face = _mesa_tex_target_to_face(target);
3367 gl_format texFormat;
3369 FLUSH_VERTICES(ctx, 0);
3371 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3372 _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3374 _mesa_lookup_enum_by_nr(target), level,
3375 _mesa_lookup_enum_by_nr(internalFormat),
3376 x, y, width, height, border);
3378 if (ctx->NewState & NEW_COPY_TEX_STATE)
3379 _mesa_update_state(ctx);
3381 if (copytexture_error_check(ctx, dims, target, level, internalFormat,
3382 width, height, border))
3385 if (!_mesa_legal_texture_dimensions(ctx, target, level, width, height,
3387 _mesa_error(ctx, GL_INVALID_VALUE,
3388 "glCopyTexImage%uD(invalid width or height)", dims);
3392 texObj = _mesa_get_current_tex_object(ctx, target);
3395 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
3396 internalFormat, GL_NONE, GL_NONE);
3397 assert(texFormat != MESA_FORMAT_NONE);
3399 if (!ctx->Driver.TestProxyTexImage(ctx, _mesa_get_proxy_target(target),
3401 width, height, 1, border)) {
3402 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3403 "glCopyTexImage%uD(image too large)", dims);
3407 if (border && ctx->Const.StripTextureBorder) {
3409 width -= border * 2;
3412 height -= border * 2;
3417 _mesa_lock_texture(ctx, texObj);
3419 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3422 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
3425 GLint srcX = x, srcY = y, dstX = 0, dstY = 0, dstZ = 0;
3427 /* Free old texture image */
3428 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3430 _mesa_init_teximage_fields(ctx, texImage, width, height, 1,
3431 border, internalFormat, texFormat);
3433 /* Allocate texture memory (no pixel data yet) */
3434 ctx->Driver.AllocTextureImageBuffer(ctx, texImage);
3436 if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY,
3438 struct gl_renderbuffer *srcRb =
3439 get_copy_tex_image_source(ctx, texImage->TexFormat);
3441 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, dstX, dstY, dstZ,
3442 srcRb, srcX, srcY, width, height);
3445 check_gen_mipmap(ctx, target, texObj, level);
3447 _mesa_update_fbo_texture(ctx, texObj, face, level);
3449 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
3452 _mesa_unlock_texture(ctx, texObj);
3458 _mesa_CopyTexImage1D( GLenum target, GLint level,
3459 GLenum internalFormat,
3461 GLsizei width, GLint border )
3463 GET_CURRENT_CONTEXT(ctx);
3464 copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border);
3470 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
3471 GLint x, GLint y, GLsizei width, GLsizei height,
3474 GET_CURRENT_CONTEXT(ctx);
3475 copyteximage(ctx, 2, target, level, internalFormat,
3476 x, y, width, height, border);
3482 * Implementation for glCopyTexSubImage1/2/3D() functions.
3485 copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
3486 GLint xoffset, GLint yoffset, GLint zoffset,
3487 GLint x, GLint y, GLsizei width, GLsizei height)
3489 struct gl_texture_object *texObj;
3490 struct gl_texture_image *texImage;
3492 FLUSH_VERTICES(ctx, 0);
3494 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3495 _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
3497 _mesa_lookup_enum_by_nr(target),
3498 level, xoffset, yoffset, zoffset, x, y, width, height);
3500 if (ctx->NewState & NEW_COPY_TEX_STATE)
3501 _mesa_update_state(ctx);
3503 if (copytexsubimage_error_check(ctx, dims, target, level,
3504 xoffset, yoffset, zoffset, width, height)) {
3508 texObj = _mesa_get_current_tex_object(ctx, target);
3510 _mesa_lock_texture(ctx, texObj);
3512 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3514 /* If we have a border, offset=-1 is legal. Bias by border width. */
3517 if (target != GL_TEXTURE_2D_ARRAY)
3518 zoffset += texImage->Border;
3521 if (target != GL_TEXTURE_1D_ARRAY)
3522 yoffset += texImage->Border;
3525 xoffset += texImage->Border;
3528 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3530 struct gl_renderbuffer *srcRb =
3531 get_copy_tex_image_source(ctx, texImage->TexFormat);
3533 ctx->Driver.CopyTexSubImage(ctx, dims, texImage,
3534 xoffset, yoffset, zoffset,
3535 srcRb, x, y, width, height);
3537 check_gen_mipmap(ctx, target, texObj, level);
3539 ctx->NewState |= _NEW_TEXTURE;
3542 _mesa_unlock_texture(ctx, texObj);
3547 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
3548 GLint xoffset, GLint x, GLint y, GLsizei width )
3550 GET_CURRENT_CONTEXT(ctx);
3551 copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1);
3557 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
3558 GLint xoffset, GLint yoffset,
3559 GLint x, GLint y, GLsizei width, GLsizei height )
3561 GET_CURRENT_CONTEXT(ctx);
3562 copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y,
3569 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
3570 GLint xoffset, GLint yoffset, GLint zoffset,
3571 GLint x, GLint y, GLsizei width, GLsizei height )
3573 GET_CURRENT_CONTEXT(ctx);
3574 copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset,
3575 x, y, width, height);
3581 /**********************************************************************/
3582 /****** Compressed Textures ******/
3583 /**********************************************************************/
3587 * Error checking for glCompressedTexSubImage[123]D().
3588 * \return error code or GL_NO_ERROR.
3591 compressed_subtexture_error_check(struct gl_context *ctx, GLint dims,
3592 GLenum target, GLint level,
3593 GLint xoffset, GLint yoffset, GLint zoffset,
3594 GLsizei width, GLsizei height, GLsizei depth,
3595 GLenum format, GLsizei imageSize)
3597 struct gl_texture_object *texObj;
3598 struct gl_texture_image *texImage;
3606 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
3607 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
3608 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
3609 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
3610 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
3611 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
3615 targetOK = GL_FALSE;
3620 targetOK = (target == GL_TEXTURE_2D_ARRAY);
3624 /* no 1D compressed textures at this time */
3625 targetOK = GL_FALSE;
3630 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(target)",
3635 /* this will catch any invalid compressed format token */
3636 if (!_mesa_is_compressed_format(ctx, format)) {
3637 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(format)",
3642 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
3643 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexImage%uD(level=%d)",
3648 expectedSize = compressed_tex_size(width, height, depth, format);
3649 if (expectedSize != imageSize) {
3650 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexImage%uD(size=%d)",
3655 texObj = _mesa_get_current_tex_object(ctx, target);
3657 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3658 "glCompressedTexSubImage%uD()", dims);
3662 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3664 _mesa_error(ctx, GL_INVALID_OPERATION,
3665 "glCompressedTexSubImage%uD(invalid texture image)", dims);
3669 if ((GLint) format != texImage->InternalFormat) {
3670 _mesa_error(ctx, GL_INVALID_OPERATION,
3671 "glCompressedTexSubImage%uD(format=0x%x)", dims, format);
3675 if (compressedteximage_only_format(ctx, format)) {
3676 _mesa_error(ctx, GL_INVALID_OPERATION,
3677 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)"
3682 if (error_check_subtexture_dimensions(ctx, "glCompressedTexSubImage", dims,
3683 texImage, xoffset, yoffset, zoffset,
3684 width, height, depth)) {
3693 _mesa_CompressedTexImage1D(GLenum target, GLint level,
3694 GLenum internalFormat, GLsizei width,
3695 GLint border, GLsizei imageSize,
3698 GET_CURRENT_CONTEXT(ctx);
3699 teximage(ctx, GL_TRUE, 1, target, level, internalFormat,
3700 width, 1, 1, border, GL_NONE, GL_NONE, imageSize, data);
3705 _mesa_CompressedTexImage2D(GLenum target, GLint level,
3706 GLenum internalFormat, GLsizei width,
3707 GLsizei height, GLint border, GLsizei imageSize,
3710 GET_CURRENT_CONTEXT(ctx);
3711 teximage(ctx, GL_TRUE, 2, target, level, internalFormat,
3712 width, height, 1, border, GL_NONE, GL_NONE, imageSize, data);
3717 _mesa_CompressedTexImage3D(GLenum target, GLint level,
3718 GLenum internalFormat, GLsizei width,
3719 GLsizei height, GLsizei depth, GLint border,
3720 GLsizei imageSize, const GLvoid *data)
3722 GET_CURRENT_CONTEXT(ctx);
3723 teximage(ctx, GL_TRUE, 3, target, level, internalFormat,
3724 width, height, depth, border, GL_NONE, GL_NONE, imageSize, data);
3729 * Common helper for glCompressedTexSubImage1/2/3D().
3732 compressed_tex_sub_image(GLuint dims, GLenum target, GLint level,
3733 GLint xoffset, GLint yoffset, GLint zoffset,
3734 GLsizei width, GLsizei height, GLsizei depth,
3735 GLenum format, GLsizei imageSize, const GLvoid *data)
3737 struct gl_texture_object *texObj;
3738 struct gl_texture_image *texImage;
3739 GET_CURRENT_CONTEXT(ctx);
3740 FLUSH_VERTICES(ctx, 0);
3742 if (compressed_subtexture_error_check(ctx, dims, target, level,
3743 xoffset, yoffset, zoffset,
3744 width, height, depth,
3745 format, imageSize)) {
3749 texObj = _mesa_get_current_tex_object(ctx, target);
3751 _mesa_lock_texture(ctx, texObj);
3753 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3756 if (width > 0 && height > 0 && depth > 0) {
3757 ctx->Driver.CompressedTexSubImage(ctx, dims, texImage,
3758 xoffset, yoffset, zoffset,
3759 width, height, depth,
3760 format, imageSize, data);
3762 check_gen_mipmap(ctx, target, texObj, level);
3764 ctx->NewState |= _NEW_TEXTURE;
3767 _mesa_unlock_texture(ctx, texObj);
3772 _mesa_CompressedTexSubImage1D(GLenum target, GLint level, GLint xoffset,
3773 GLsizei width, GLenum format,
3774 GLsizei imageSize, const GLvoid *data)
3776 compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1,
3777 format, imageSize, data);
3782 _mesa_CompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset,
3783 GLint yoffset, GLsizei width, GLsizei height,
3784 GLenum format, GLsizei imageSize,
3787 compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0,
3788 width, height, 1, format, imageSize, data);
3793 _mesa_CompressedTexSubImage3D(GLenum target, GLint level, GLint xoffset,
3794 GLint yoffset, GLint zoffset, GLsizei width,
3795 GLsizei height, GLsizei depth, GLenum format,
3796 GLsizei imageSize, const GLvoid *data)
3798 compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset,
3799 width, height, depth, format, imageSize, data);
3803 get_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat)
3805 switch (internalFormat) {
3807 return MESA_FORMAT_A8;
3809 return MESA_FORMAT_A16;
3810 case GL_ALPHA16F_ARB:
3811 return MESA_FORMAT_ALPHA_FLOAT16;
3812 case GL_ALPHA32F_ARB:
3813 return MESA_FORMAT_ALPHA_FLOAT32;
3814 case GL_ALPHA8I_EXT:
3815 return MESA_FORMAT_ALPHA_INT8;
3816 case GL_ALPHA16I_EXT:
3817 return MESA_FORMAT_ALPHA_INT16;
3818 case GL_ALPHA32I_EXT:
3819 return MESA_FORMAT_ALPHA_INT32;
3820 case GL_ALPHA8UI_EXT:
3821 return MESA_FORMAT_ALPHA_UINT8;
3822 case GL_ALPHA16UI_EXT:
3823 return MESA_FORMAT_ALPHA_UINT16;
3824 case GL_ALPHA32UI_EXT:
3825 return MESA_FORMAT_ALPHA_UINT32;
3827 return MESA_FORMAT_L8;
3828 case GL_LUMINANCE16:
3829 return MESA_FORMAT_L16;
3830 case GL_LUMINANCE16F_ARB:
3831 return MESA_FORMAT_LUMINANCE_FLOAT16;
3832 case GL_LUMINANCE32F_ARB:
3833 return MESA_FORMAT_LUMINANCE_FLOAT32;
3834 case GL_LUMINANCE8I_EXT:
3835 return MESA_FORMAT_LUMINANCE_INT8;
3836 case GL_LUMINANCE16I_EXT:
3837 return MESA_FORMAT_LUMINANCE_INT16;
3838 case GL_LUMINANCE32I_EXT:
3839 return MESA_FORMAT_LUMINANCE_INT32;
3840 case GL_LUMINANCE8UI_EXT:
3841 return MESA_FORMAT_LUMINANCE_UINT8;
3842 case GL_LUMINANCE16UI_EXT:
3843 return MESA_FORMAT_LUMINANCE_UINT16;
3844 case GL_LUMINANCE32UI_EXT:
3845 return MESA_FORMAT_LUMINANCE_UINT32;
3846 case GL_LUMINANCE8_ALPHA8:
3847 return MESA_FORMAT_AL88;
3848 case GL_LUMINANCE16_ALPHA16:
3849 return MESA_FORMAT_AL1616;
3850 case GL_LUMINANCE_ALPHA16F_ARB:
3851 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16;
3852 case GL_LUMINANCE_ALPHA32F_ARB:
3853 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32;
3854 case GL_LUMINANCE_ALPHA8I_EXT:
3855 return MESA_FORMAT_LUMINANCE_ALPHA_INT8;
3856 case GL_LUMINANCE_ALPHA16I_EXT:
3857 return MESA_FORMAT_LUMINANCE_ALPHA_INT8;
3858 case GL_LUMINANCE_ALPHA32I_EXT:
3859 return MESA_FORMAT_LUMINANCE_ALPHA_INT16;
3860 case GL_LUMINANCE_ALPHA8UI_EXT:
3861 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8;
3862 case GL_LUMINANCE_ALPHA16UI_EXT:
3863 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16;
3864 case GL_LUMINANCE_ALPHA32UI_EXT:
3865 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32;
3867 return MESA_FORMAT_I8;
3868 case GL_INTENSITY16:
3869 return MESA_FORMAT_I16;
3870 case GL_INTENSITY16F_ARB:
3871 return MESA_FORMAT_INTENSITY_FLOAT16;
3872 case GL_INTENSITY32F_ARB:
3873 return MESA_FORMAT_INTENSITY_FLOAT32;
3874 case GL_INTENSITY8I_EXT:
3875 return MESA_FORMAT_INTENSITY_INT8;
3876 case GL_INTENSITY16I_EXT:
3877 return MESA_FORMAT_INTENSITY_INT16;
3878 case GL_INTENSITY32I_EXT:
3879 return MESA_FORMAT_INTENSITY_INT32;
3880 case GL_INTENSITY8UI_EXT:
3881 return MESA_FORMAT_INTENSITY_UINT8;
3882 case GL_INTENSITY16UI_EXT:
3883 return MESA_FORMAT_INTENSITY_UINT16;
3884 case GL_INTENSITY32UI_EXT:
3885 return MESA_FORMAT_INTENSITY_UINT32;
3887 return MESA_FORMAT_RGBA8888_REV;
3889 return MESA_FORMAT_RGBA_16;
3890 case GL_RGBA16F_ARB:
3891 return MESA_FORMAT_RGBA_FLOAT16;
3892 case GL_RGBA32F_ARB:
3893 return MESA_FORMAT_RGBA_FLOAT32;
3895 return MESA_FORMAT_RGBA_INT8;
3896 case GL_RGBA16I_EXT:
3897 return MESA_FORMAT_RGBA_INT16;
3898 case GL_RGBA32I_EXT:
3899 return MESA_FORMAT_RGBA_INT32;
3900 case GL_RGBA8UI_EXT:
3901 return MESA_FORMAT_RGBA_UINT8;
3902 case GL_RGBA16UI_EXT:
3903 return MESA_FORMAT_RGBA_UINT16;
3904 case GL_RGBA32UI_EXT:
3905 return MESA_FORMAT_RGBA_UINT32;
3908 return MESA_FORMAT_GR88;
3910 return MESA_FORMAT_RG1616;
3912 return MESA_FORMAT_RG_FLOAT16;
3914 return MESA_FORMAT_RG_FLOAT32;
3916 return MESA_FORMAT_RG_INT8;
3918 return MESA_FORMAT_RG_INT16;
3920 return MESA_FORMAT_RG_INT32;
3922 return MESA_FORMAT_RG_UINT8;
3924 return MESA_FORMAT_RG_UINT16;
3926 return MESA_FORMAT_RG_UINT32;
3929 return MESA_FORMAT_R8;
3931 return MESA_FORMAT_R16;
3933 return MESA_FORMAT_R_FLOAT16;
3935 return MESA_FORMAT_R_FLOAT32;
3937 return MESA_FORMAT_R_INT8;
3939 return MESA_FORMAT_R_INT16;
3941 return MESA_FORMAT_R_INT32;
3943 return MESA_FORMAT_R_UINT8;
3945 return MESA_FORMAT_R_UINT16;
3947 return MESA_FORMAT_R_UINT32;
3950 return MESA_FORMAT_RGB_FLOAT32;
3952 return MESA_FORMAT_RGB_UINT32;
3954 return MESA_FORMAT_RGB_INT32;
3957 return MESA_FORMAT_NONE;
3962 validate_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat)
3964 gl_format format = get_texbuffer_format(ctx, internalFormat);
3967 if (format == MESA_FORMAT_NONE)
3968 return MESA_FORMAT_NONE;
3970 datatype = _mesa_get_format_datatype(format);
3971 if (datatype == GL_FLOAT && !ctx->Extensions.ARB_texture_float)
3972 return MESA_FORMAT_NONE;
3974 if (datatype == GL_HALF_FLOAT && !ctx->Extensions.ARB_half_float_pixel)
3975 return MESA_FORMAT_NONE;
3977 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make
3978 * any mention of R/RG formats, but they appear in the GL 3.1 core
3981 if (ctx->Version <= 30) {
3982 GLenum base_format = _mesa_get_format_base_format(format);
3984 if (base_format == GL_R || base_format == GL_RG)
3985 return MESA_FORMAT_NONE;
3988 if (!ctx->Extensions.ARB_texture_buffer_object_rgb32) {
3989 GLenum base_format = _mesa_get_format_base_format(format);
3990 if (base_format == GL_RGB)
3991 return MESA_FORMAT_NONE;
3998 texbufferrange(struct gl_context *ctx, GLenum target, GLenum internalFormat,
3999 struct gl_buffer_object *bufObj,
4000 GLintptr offset, GLsizeiptr size)
4002 struct gl_texture_object *texObj;
4005 FLUSH_VERTICES(ctx, 0);
4007 if (target != GL_TEXTURE_BUFFER_ARB) {
4008 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(target)");
4012 format = validate_texbuffer_format(ctx, internalFormat);
4013 if (format == MESA_FORMAT_NONE) {
4014 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(internalFormat 0x%x)",
4019 texObj = _mesa_get_current_tex_object(ctx, target);
4021 _mesa_lock_texture(ctx, texObj);
4023 _mesa_reference_buffer_object(ctx, &texObj->BufferObject, bufObj);
4024 texObj->BufferObjectFormat = internalFormat;
4025 texObj->_BufferObjectFormat = format;
4026 texObj->BufferOffset = offset;
4027 texObj->BufferSize = size;
4029 _mesa_unlock_texture(ctx, texObj);
4032 /** GL_ARB_texture_buffer_object */
4034 _mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer)
4036 struct gl_buffer_object *bufObj;
4038 GET_CURRENT_CONTEXT(ctx);
4040 /* NOTE: ARB_texture_buffer_object has interactions with
4041 * the compatibility profile that are not implemented.
4043 if (!(ctx->API == API_OPENGL_CORE &&
4044 ctx->Extensions.ARB_texture_buffer_object)) {
4045 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer");
4049 bufObj = _mesa_lookup_bufferobj(ctx, buffer);
4050 if (!bufObj && buffer) {
4051 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer(buffer %u)", buffer);
4055 texbufferrange(ctx, target, internalFormat, bufObj, 0, buffer ? -1 : 0);
4058 /** GL_ARB_texture_buffer_range */
4060 _mesa_TexBufferRange(GLenum target, GLenum internalFormat, GLuint buffer,
4061 GLintptr offset, GLsizeiptr size)
4063 struct gl_buffer_object *bufObj;
4065 GET_CURRENT_CONTEXT(ctx);
4067 if (!(ctx->API == API_OPENGL_CORE &&
4068 ctx->Extensions.ARB_texture_buffer_range)) {
4069 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBufferRange");
4073 bufObj = _mesa_lookup_bufferobj(ctx, buffer);
4077 (offset + size) > bufObj->Size) {
4078 _mesa_error(ctx, GL_INVALID_VALUE, "glTexBufferRange");
4081 if (offset % ctx->Const.TextureBufferOffsetAlignment) {
4082 _mesa_error(ctx, GL_INVALID_VALUE,
4083 "glTexBufferRange(invalid offset alignment)");
4086 } else if (buffer) {
4087 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBufferRange(buffer %u)",
4095 texbufferrange(ctx, target, internalFormat, bufObj, offset, size);