2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 * Texture image-related functions.
33 #include "bufferobj.h"
37 #include "framebuffer.h"
42 #include "mfeatures.h"
44 #include "texcompress.h"
52 * State changes which we care about for glCopyTex[Sub]Image() calls.
53 * In particular, we care about pixel transfer state and buffer state
54 * (such as glReadBuffer to make sure we read from the right renderbuffer).
56 #define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
61 * Return the simple base format for a given internal texture format.
62 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
64 * \param ctx GL context.
65 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
67 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
68 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
70 * This is the format which is used during texture application (i.e. the
71 * texture format and env mode determine the arithmetic used.
73 * XXX this could be static
76 _mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat )
78 switch (internalFormat) {
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 GL_LUMINANCE_ALPHA;
131 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
133 if (ctx->API != API_OPENGL) {
134 switch (internalFormat) {
142 if (ctx->Extensions.ARB_depth_texture) {
143 switch (internalFormat) {
144 case GL_DEPTH_COMPONENT:
145 case GL_DEPTH_COMPONENT16:
146 case GL_DEPTH_COMPONENT24:
147 case GL_DEPTH_COMPONENT32:
148 return GL_DEPTH_COMPONENT;
154 switch (internalFormat) {
155 case GL_COMPRESSED_ALPHA:
157 case GL_COMPRESSED_LUMINANCE:
159 case GL_COMPRESSED_LUMINANCE_ALPHA:
160 return GL_LUMINANCE_ALPHA;
161 case GL_COMPRESSED_INTENSITY:
163 case GL_COMPRESSED_RGB:
165 case GL_COMPRESSED_RGBA:
171 if (ctx->Extensions.TDFX_texture_compression_FXT1) {
172 switch (internalFormat) {
173 case GL_COMPRESSED_RGB_FXT1_3DFX:
175 case GL_COMPRESSED_RGBA_FXT1_3DFX:
182 if (ctx->Extensions.EXT_texture_compression_s3tc) {
183 switch (internalFormat) {
184 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
186 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
187 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
188 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
195 if (ctx->Extensions.S3_s3tc) {
196 switch (internalFormat) {
208 if (ctx->Extensions.MESA_ycbcr_texture) {
209 if (internalFormat == GL_YCBCR_MESA)
210 return GL_YCBCR_MESA;
213 if (ctx->Extensions.ARB_texture_float) {
214 switch (internalFormat) {
215 case GL_ALPHA16F_ARB:
216 case GL_ALPHA32F_ARB:
224 case GL_INTENSITY16F_ARB:
225 case GL_INTENSITY32F_ARB:
227 case GL_LUMINANCE16F_ARB:
228 case GL_LUMINANCE32F_ARB:
230 case GL_LUMINANCE_ALPHA16F_ARB:
231 case GL_LUMINANCE_ALPHA32F_ARB:
232 return GL_LUMINANCE_ALPHA;
238 if (ctx->Extensions.ATI_envmap_bumpmap) {
239 switch (internalFormat) {
248 if (ctx->Extensions.EXT_texture_snorm) {
249 switch (internalFormat) {
264 case GL_RGBA16_SNORM:
267 case GL_ALPHA8_SNORM:
268 case GL_ALPHA16_SNORM:
270 case GL_LUMINANCE_SNORM:
271 case GL_LUMINANCE8_SNORM:
272 case GL_LUMINANCE16_SNORM:
274 case GL_LUMINANCE_ALPHA_SNORM:
275 case GL_LUMINANCE8_ALPHA8_SNORM:
276 case GL_LUMINANCE16_ALPHA16_SNORM:
277 return GL_LUMINANCE_ALPHA;
278 case GL_INTENSITY_SNORM:
279 case GL_INTENSITY8_SNORM:
280 case GL_INTENSITY16_SNORM:
287 if (ctx->Extensions.EXT_packed_depth_stencil) {
288 switch (internalFormat) {
289 case GL_DEPTH_STENCIL_EXT:
290 case GL_DEPTH24_STENCIL8_EXT:
291 return GL_DEPTH_STENCIL_EXT;
297 #if FEATURE_EXT_texture_sRGB
298 if (ctx->Extensions.EXT_texture_sRGB) {
299 switch (internalFormat) {
302 case GL_COMPRESSED_SRGB_EXT:
303 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
305 case GL_SRGB_ALPHA_EXT:
306 case GL_SRGB8_ALPHA8_EXT:
307 case GL_COMPRESSED_SRGB_ALPHA_EXT:
308 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
309 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
310 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
312 case GL_SLUMINANCE_ALPHA_EXT:
313 case GL_SLUMINANCE8_ALPHA8_EXT:
314 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
315 return GL_LUMINANCE_ALPHA;
316 case GL_SLUMINANCE_EXT:
317 case GL_SLUMINANCE8_EXT:
318 case GL_COMPRESSED_SLUMINANCE_EXT:
324 #endif /* FEATURE_EXT_texture_sRGB */
326 if (ctx->Extensions.EXT_texture_integer) {
327 switch (internalFormat) {
329 case GL_RGBA16UI_EXT:
330 case GL_RGBA32UI_EXT:
342 case GL_ALPHA8UI_EXT:
343 case GL_ALPHA16UI_EXT:
344 case GL_ALPHA32UI_EXT:
346 case GL_ALPHA16I_EXT:
347 case GL_ALPHA32I_EXT:
349 case GL_INTENSITY8UI_EXT:
350 case GL_INTENSITY16UI_EXT:
351 case GL_INTENSITY32UI_EXT:
352 case GL_INTENSITY8I_EXT:
353 case GL_INTENSITY16I_EXT:
354 case GL_INTENSITY32I_EXT:
356 case GL_LUMINANCE8UI_EXT:
357 case GL_LUMINANCE16UI_EXT:
358 case GL_LUMINANCE32UI_EXT:
359 case GL_LUMINANCE8I_EXT:
360 case GL_LUMINANCE16I_EXT:
361 case GL_LUMINANCE32I_EXT:
363 case GL_LUMINANCE_ALPHA8UI_EXT:
364 case GL_LUMINANCE_ALPHA16UI_EXT:
365 case GL_LUMINANCE_ALPHA32UI_EXT:
366 case GL_LUMINANCE_ALPHA8I_EXT:
367 case GL_LUMINANCE_ALPHA16I_EXT:
368 case GL_LUMINANCE_ALPHA32I_EXT:
369 return GL_LUMINANCE_ALPHA;
375 if (ctx->Extensions.ARB_texture_rg) {
376 switch (internalFormat) {
378 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
380 if (!ctx->Extensions.ARB_half_float_pixel)
384 if (!ctx->Extensions.ARB_texture_float)
393 if (!ctx->Extensions.EXT_texture_integer)
399 case GL_COMPRESSED_RED:
403 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
405 if (!ctx->Extensions.ARB_half_float_pixel)
409 if (!ctx->Extensions.ARB_texture_float)
418 if (!ctx->Extensions.EXT_texture_integer)
424 case GL_COMPRESSED_RG:
431 if (ctx->Extensions.EXT_texture_shared_exponent) {
432 switch (internalFormat) {
440 if (ctx->Extensions.EXT_packed_float) {
441 switch (internalFormat) {
442 case GL_R11F_G11F_B10F_EXT:
449 if (ctx->Extensions.ARB_depth_buffer_float) {
450 switch (internalFormat) {
451 case GL_DEPTH_COMPONENT32F:
452 return GL_DEPTH_COMPONENT;
453 case GL_DEPTH32F_STENCIL8:
454 return GL_DEPTH_STENCIL;
460 if (ctx->Extensions.ARB_texture_compression_rgtc) {
461 switch (internalFormat) {
462 case GL_COMPRESSED_RED_RGTC1:
463 case GL_COMPRESSED_SIGNED_RED_RGTC1:
465 case GL_COMPRESSED_RG_RGTC2:
466 case GL_COMPRESSED_SIGNED_RG_RGTC2:
473 if (ctx->Extensions.EXT_texture_compression_latc) {
474 switch (internalFormat) {
475 case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
476 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
478 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
479 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
480 return GL_LUMINANCE_ALPHA;
486 if (ctx->Extensions.ATI_texture_compression_3dc) {
487 switch (internalFormat) {
488 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
489 return GL_LUMINANCE_ALPHA;
495 if (ctx->API == API_OPENGLES) {
496 switch (internalFormat) {
497 case GL_PALETTE4_RGB8_OES:
498 case GL_PALETTE4_R5_G6_B5_OES:
499 case GL_PALETTE8_RGB8_OES:
500 case GL_PALETTE8_R5_G6_B5_OES:
502 case GL_PALETTE4_RGBA8_OES:
503 case GL_PALETTE8_RGB5_A1_OES:
504 case GL_PALETTE4_RGBA4_OES:
505 case GL_PALETTE4_RGB5_A1_OES:
506 case GL_PALETTE8_RGBA8_OES:
507 case GL_PALETTE8_RGBA4_OES:
514 return -1; /* error */
519 * For cube map faces, return a face index in [0,5].
520 * For other targets return 0;
523 _mesa_tex_target_to_face(GLenum target)
525 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
526 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)
527 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
535 * Store a gl_texture_image pointer in a gl_texture_object structure
536 * according to the target and level parameters.
538 * \param tObj texture object.
539 * \param target texture target.
540 * \param level image level.
541 * \param texImage texture image.
544 _mesa_set_tex_image(struct gl_texture_object *tObj,
545 GLenum target, GLint level,
546 struct gl_texture_image *texImage)
548 const GLuint face = _mesa_tex_target_to_face(target);
552 ASSERT(target != GL_TEXTURE_RECTANGLE_NV || level == 0);
554 tObj->Image[face][level] = texImage;
556 /* Set the 'back' pointer */
557 texImage->TexObject = tObj;
558 texImage->Level = level;
559 texImage->Face = face;
564 * Allocate a texture image structure.
566 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
569 * \return a pointer to gl_texture_image struct with all fields initialized to
572 struct gl_texture_image *
573 _mesa_new_texture_image( struct gl_context *ctx )
576 return CALLOC_STRUCT(gl_texture_image);
581 * Free a gl_texture_image and associated data.
582 * This function is a fallback called via ctx->Driver.DeleteTextureImage().
584 * \param texImage texture image.
586 * Free the texture image structure and the associated image data.
589 _mesa_delete_texture_image(struct gl_context *ctx,
590 struct gl_texture_image *texImage)
592 /* Free texImage->Data and/or any other driver-specific texture
595 ASSERT(ctx->Driver.FreeTextureImageBuffer);
596 ctx->Driver.FreeTextureImageBuffer( ctx, texImage );
601 * Test if a target is a proxy target.
603 * \param target texture target.
605 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
608 _mesa_is_proxy_texture(GLenum target)
610 /* NUM_TEXTURE_TARGETS should match number of terms below,
611 * except there's no proxy for GL_TEXTURE_BUFFER.
613 assert(NUM_TEXTURE_TARGETS == 8);
615 return (target == GL_PROXY_TEXTURE_1D ||
616 target == GL_PROXY_TEXTURE_2D ||
617 target == GL_PROXY_TEXTURE_3D ||
618 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
619 target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
620 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
621 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT);
626 * Return the proxy target which corresponds to the given texture target
629 get_proxy_target(GLenum target)
633 case GL_PROXY_TEXTURE_1D:
634 return GL_PROXY_TEXTURE_1D;
636 case GL_PROXY_TEXTURE_2D:
637 return GL_PROXY_TEXTURE_2D;
639 case GL_PROXY_TEXTURE_3D:
640 return GL_PROXY_TEXTURE_3D;
641 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
642 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
643 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
644 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
645 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
646 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
647 case GL_TEXTURE_CUBE_MAP_ARB:
648 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
649 return GL_PROXY_TEXTURE_CUBE_MAP_ARB;
650 case GL_TEXTURE_RECTANGLE_NV:
651 case GL_PROXY_TEXTURE_RECTANGLE_NV:
652 return GL_PROXY_TEXTURE_RECTANGLE_NV;
653 case GL_TEXTURE_1D_ARRAY_EXT:
654 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
655 return GL_PROXY_TEXTURE_1D_ARRAY_EXT;
656 case GL_TEXTURE_2D_ARRAY_EXT:
657 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
658 return GL_PROXY_TEXTURE_2D_ARRAY_EXT;
660 _mesa_problem(NULL, "unexpected target in get_proxy_target()");
667 * Get the texture object that corresponds to the target of the given
668 * texture unit. The target should have already been checked for validity.
670 * \param ctx GL context.
671 * \param texUnit texture unit.
672 * \param target texture target.
674 * \return pointer to the texture object on success, or NULL on failure.
676 struct gl_texture_object *
677 _mesa_select_tex_object(struct gl_context *ctx,
678 const struct gl_texture_unit *texUnit,
681 const GLboolean arrayTex = (ctx->Extensions.MESA_texture_array ||
682 ctx->Extensions.EXT_texture_array);
686 return texUnit->CurrentTex[TEXTURE_1D_INDEX];
687 case GL_PROXY_TEXTURE_1D:
688 return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
690 return texUnit->CurrentTex[TEXTURE_2D_INDEX];
691 case GL_PROXY_TEXTURE_2D:
692 return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
694 return texUnit->CurrentTex[TEXTURE_3D_INDEX];
695 case GL_PROXY_TEXTURE_3D:
696 return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
697 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
698 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
699 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
700 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
701 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
702 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
703 case GL_TEXTURE_CUBE_MAP_ARB:
704 return ctx->Extensions.ARB_texture_cube_map
705 ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL;
706 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
707 return ctx->Extensions.ARB_texture_cube_map
708 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL;
709 case GL_TEXTURE_RECTANGLE_NV:
710 return ctx->Extensions.NV_texture_rectangle
711 ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL;
712 case GL_PROXY_TEXTURE_RECTANGLE_NV:
713 return ctx->Extensions.NV_texture_rectangle
714 ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL;
715 case GL_TEXTURE_1D_ARRAY_EXT:
716 return arrayTex ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
717 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
718 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
719 case GL_TEXTURE_2D_ARRAY_EXT:
720 return arrayTex ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
721 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
722 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
723 case GL_TEXTURE_BUFFER:
724 return ctx->Extensions.ARB_texture_buffer_object
725 ? texUnit->CurrentTex[TEXTURE_BUFFER_INDEX] : NULL;
727 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
734 * Return pointer to texture object for given target on current texture unit.
736 struct gl_texture_object *
737 _mesa_get_current_tex_object(struct gl_context *ctx, GLenum target)
739 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
740 return _mesa_select_tex_object(ctx, texUnit, target);
745 * Get a texture image pointer from a texture object, given a texture
746 * target and mipmap level. The target and level parameters should
747 * have already been error-checked.
749 * \param ctx GL context.
750 * \param texObj texture unit.
751 * \param target texture target.
752 * \param level image level.
754 * \return pointer to the texture image structure, or NULL on failure.
756 struct gl_texture_image *
757 _mesa_select_tex_image(struct gl_context *ctx,
758 const struct gl_texture_object *texObj,
759 GLenum target, GLint level)
761 const GLuint face = _mesa_tex_target_to_face(target);
765 ASSERT(level < MAX_TEXTURE_LEVELS);
767 return texObj->Image[face][level];
772 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
773 * it and install it. Only return NULL if passed a bad parameter or run
776 struct gl_texture_image *
777 _mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj,
778 GLenum target, GLint level)
780 struct gl_texture_image *texImage;
785 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
787 texImage = ctx->Driver.NewTextureImage(ctx);
789 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
793 _mesa_set_tex_image(texObj, target, level, texImage);
801 * Return pointer to the specified proxy texture image.
802 * Note that proxy textures are per-context, not per-texture unit.
803 * \return pointer to texture image or NULL if invalid target, invalid
804 * level, or out of memory.
806 struct gl_texture_image *
807 _mesa_get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level)
809 struct gl_texture_image *texImage;
816 case GL_PROXY_TEXTURE_1D:
817 if (level >= ctx->Const.MaxTextureLevels)
819 texIndex = TEXTURE_1D_INDEX;
821 case GL_PROXY_TEXTURE_2D:
822 if (level >= ctx->Const.MaxTextureLevels)
824 texIndex = TEXTURE_2D_INDEX;
826 case GL_PROXY_TEXTURE_3D:
827 if (level >= ctx->Const.Max3DTextureLevels)
829 texIndex = TEXTURE_3D_INDEX;
831 case GL_PROXY_TEXTURE_CUBE_MAP:
832 if (level >= ctx->Const.MaxCubeTextureLevels)
834 texIndex = TEXTURE_CUBE_INDEX;
836 case GL_PROXY_TEXTURE_RECTANGLE_NV:
839 texIndex = TEXTURE_RECT_INDEX;
841 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
842 if (level >= ctx->Const.MaxTextureLevels)
844 texIndex = TEXTURE_1D_ARRAY_INDEX;
846 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
847 if (level >= ctx->Const.MaxTextureLevels)
849 texIndex = TEXTURE_2D_ARRAY_INDEX;
855 texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level];
857 texImage = ctx->Driver.NewTextureImage(ctx);
859 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
862 ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage;
863 /* Set the 'back' pointer */
864 texImage->TexObject = ctx->Texture.ProxyTex[texIndex];
871 * Get the maximum number of allowed mipmap levels.
873 * \param ctx GL context.
874 * \param target texture target.
876 * \return the maximum number of allowed mipmap levels for the given
877 * texture target, or zero if passed a bad target.
882 _mesa_max_texture_levels(struct gl_context *ctx, GLenum target)
886 case GL_PROXY_TEXTURE_1D:
888 case GL_PROXY_TEXTURE_2D:
889 return ctx->Const.MaxTextureLevels;
891 case GL_PROXY_TEXTURE_3D:
892 return ctx->Const.Max3DTextureLevels;
893 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
894 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
895 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
896 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
897 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
898 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
899 case GL_TEXTURE_CUBE_MAP_ARB:
900 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
901 return ctx->Extensions.ARB_texture_cube_map
902 ? ctx->Const.MaxCubeTextureLevels : 0;
903 case GL_TEXTURE_RECTANGLE_NV:
904 case GL_PROXY_TEXTURE_RECTANGLE_NV:
905 return ctx->Extensions.NV_texture_rectangle ? 1 : 0;
906 case GL_TEXTURE_1D_ARRAY_EXT:
907 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
908 case GL_TEXTURE_2D_ARRAY_EXT:
909 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
910 return (ctx->Extensions.MESA_texture_array ||
911 ctx->Extensions.EXT_texture_array)
912 ? ctx->Const.MaxTextureLevels : 0;
913 case GL_TEXTURE_BUFFER:
916 return 0; /* bad target */
922 * Return number of dimensions per mipmap level for the given texture target.
925 _mesa_get_texture_dimensions(GLenum target)
929 case GL_PROXY_TEXTURE_1D:
932 case GL_TEXTURE_RECTANGLE:
933 case GL_TEXTURE_CUBE_MAP:
934 case GL_PROXY_TEXTURE_2D:
935 case GL_PROXY_TEXTURE_RECTANGLE:
936 case GL_PROXY_TEXTURE_CUBE_MAP:
937 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
938 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
939 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
940 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
941 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
942 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
943 case GL_TEXTURE_1D_ARRAY:
944 case GL_PROXY_TEXTURE_1D_ARRAY:
947 case GL_PROXY_TEXTURE_3D:
948 case GL_TEXTURE_2D_ARRAY:
949 case GL_PROXY_TEXTURE_2D_ARRAY:
951 case GL_TEXTURE_BUFFER:
954 _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()",
963 #if 000 /* not used anymore */
965 * glTexImage[123]D can accept a NULL image pointer. In this case we
966 * create a texture image with unspecified image contents per the OpenGL
970 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
972 const GLint components = _mesa_components_in_format(format);
973 const GLint numPixels = width * height * depth;
974 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
978 * Let's see if anyone finds this. If glTexImage2D() is called with
979 * a NULL image pointer then load the texture image with something
980 * interesting instead of leaving it indeterminate.
983 static const char message[8][32] = {
987 " X X XXXX XXX XXXXX ",
990 " X X XXXXX XXX X X ",
994 GLubyte *imgPtr = data;
996 for (h = 0; h < depth; h++) {
997 for (i = 0; i < height; i++) {
998 GLint srcRow = 7 - (i % 8);
999 for (j = 0; j < width; j++) {
1000 GLint srcCol = j % 32;
1001 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
1002 for (k = 0; k < components; k++) {
1018 * Reset the fields of a gl_texture_image struct to zero.
1020 * \param img texture image structure.
1022 * This is called when a proxy texture test fails, we set all the
1023 * image members (except DriverData) to zero.
1024 * It's also used in glTexImage[123]D as a safeguard to be sure all
1025 * required fields get initialized properly by the Driver.TexImage[123]D
1029 clear_teximage_fields(struct gl_texture_image *img)
1032 img->_BaseFormat = 0;
1033 img->InternalFormat = 0;
1042 img->HeightLog2 = 0;
1044 img->TexFormat = MESA_FORMAT_NONE;
1049 * Initialize basic fields of the gl_texture_image struct.
1051 * \param ctx GL context.
1052 * \param target texture target (GL_TEXTURE_1D, GL_TEXTURE_RECTANGLE, etc).
1053 * \param img texture image structure to be initialized.
1054 * \param width image width.
1055 * \param height image height.
1056 * \param depth image depth.
1057 * \param border image border.
1058 * \param internalFormat internal format.
1059 * \param format the actual hardware format (one of MESA_FORMAT_*)
1061 * Fills in the fields of \p img with the given information.
1062 * Note: width, height and depth include the border.
1065 _mesa_init_teximage_fields(struct gl_context *ctx, GLenum target,
1066 struct gl_texture_image *img,
1067 GLsizei width, GLsizei height, GLsizei depth,
1068 GLint border, GLenum internalFormat,
1073 ASSERT(height >= 0);
1076 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
1077 ASSERT(img->_BaseFormat > 0);
1078 img->InternalFormat = internalFormat;
1079 img->Border = border;
1081 img->Height = height;
1084 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
1085 img->WidthLog2 = _mesa_logbase2(img->Width2);
1087 if (height == 1) { /* 1-D texture */
1089 img->HeightLog2 = 0;
1092 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1093 img->HeightLog2 = _mesa_logbase2(img->Height2);
1096 if (depth == 1) { /* 2-D texture */
1101 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
1102 img->DepthLog2 = _mesa_logbase2(img->Depth2);
1105 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
1107 img->TexFormat = format;
1112 * Free and clear fields of the gl_texture_image struct.
1114 * \param ctx GL context.
1115 * \param texImage texture image structure to be cleared.
1117 * After the call, \p texImage will have no data associated with it. Its
1118 * fields are cleared so that its parent object will test incomplete.
1121 _mesa_clear_texture_image(struct gl_context *ctx,
1122 struct gl_texture_image *texImage)
1124 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
1125 clear_teximage_fields(texImage);
1130 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1131 * level, width, height and depth against the ctx->Const limits for textures.
1133 * A hardware driver might override this function if, for example, the
1134 * max 3D texture size is 512x512x64 (i.e. not a cube).
1136 * Note that width, height, depth == 0 is not an error. However, a
1137 * texture with zero width/height/depth will be considered "incomplete"
1138 * and texturing will effectively be disabled.
1140 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1141 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1142 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1143 * \param level as passed to glTexImage
1144 * \param internalFormat as passed to glTexImage
1145 * \param format as passed to glTexImage
1146 * \param type as passed to glTexImage
1147 * \param width as passed to glTexImage
1148 * \param height as passed to glTexImage
1149 * \param depth as passed to glTexImage
1150 * \param border as passed to glTexImage
1151 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1154 _mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
1155 GLint internalFormat, GLenum format, GLenum type,
1156 GLint width, GLint height, GLint depth, GLint border)
1160 (void) internalFormat;
1165 case GL_PROXY_TEXTURE_1D:
1166 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1167 if (width < 2 * border || width > 2 + maxSize)
1169 if (level >= ctx->Const.MaxTextureLevels)
1171 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1172 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1177 case GL_PROXY_TEXTURE_2D:
1178 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1179 if (width < 2 * border || width > 2 + maxSize)
1181 if (height < 2 * border || height > 2 + maxSize)
1183 if (level >= ctx->Const.MaxTextureLevels)
1185 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1186 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1188 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1193 case GL_PROXY_TEXTURE_3D:
1194 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1195 if (width < 2 * border || width > 2 + maxSize)
1197 if (height < 2 * border || height > 2 + maxSize)
1199 if (depth < 2 * border || depth > 2 + maxSize)
1201 if (level >= ctx->Const.Max3DTextureLevels)
1203 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1204 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1206 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1208 if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border))
1213 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1214 maxSize = ctx->Const.MaxTextureRectSize;
1215 if (width < 0 || width > maxSize)
1217 if (height < 0 || height > maxSize)
1223 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1224 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1225 if (width < 2 * border || width > 2 + maxSize)
1227 if (height < 2 * border || height > 2 + maxSize)
1229 if (level >= ctx->Const.MaxCubeTextureLevels)
1231 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1232 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1234 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1239 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1240 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1241 if (width < 2 * border || width > 2 + maxSize)
1243 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers)
1245 if (level >= ctx->Const.MaxTextureLevels)
1247 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1248 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1253 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1254 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1255 if (width < 2 * border || width > 2 + maxSize)
1257 if (height < 2 * border || height > 2 + maxSize)
1259 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers)
1261 if (level >= ctx->Const.MaxTextureLevels)
1263 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1264 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1266 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1272 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
1279 * Check if the memory used by the texture would exceed the driver's limit.
1280 * This lets us support a max 3D texture size of 8K (for example) but
1281 * prevents allocating a full 8K x 8K x 8K texture.
1282 * XXX this could be rolled into the proxy texture size test (above) but
1283 * we don't have the actual texture internal format at that point.
1286 legal_texture_size(struct gl_context *ctx, gl_format format,
1287 GLint width, GLint height, GLint depth)
1289 uint64_t bytes = _mesa_format_image_size64(format, width, height, depth);
1290 uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */
1291 return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes;
1297 * Helper function to determine whether a target and specific compression
1298 * format are supported.
1301 target_can_be_compressed(const struct gl_context *ctx, GLenum target,
1304 (void) intFormat; /* not used yet */
1308 case GL_PROXY_TEXTURE_2D:
1309 return GL_TRUE; /* true for any compressed format so far */
1310 case GL_PROXY_TEXTURE_CUBE_MAP:
1311 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1312 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1313 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1314 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1315 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1316 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1317 return ctx->Extensions.ARB_texture_cube_map;
1318 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1319 case GL_TEXTURE_2D_ARRAY_EXT:
1320 return (ctx->Extensions.MESA_texture_array ||
1321 ctx->Extensions.EXT_texture_array);
1329 * Check if the given texture target value is legal for a
1330 * glTexImage1/2/3D call.
1333 legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target)
1339 case GL_PROXY_TEXTURE_1D:
1347 case GL_PROXY_TEXTURE_2D:
1349 case GL_PROXY_TEXTURE_CUBE_MAP:
1350 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1351 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1352 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1353 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1354 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1355 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1356 return ctx->Extensions.ARB_texture_cube_map;
1357 case GL_TEXTURE_RECTANGLE_NV:
1358 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1359 return ctx->Extensions.NV_texture_rectangle;
1360 case GL_TEXTURE_1D_ARRAY_EXT:
1361 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1362 return (ctx->Extensions.MESA_texture_array ||
1363 ctx->Extensions.EXT_texture_array);
1370 case GL_PROXY_TEXTURE_3D:
1372 case GL_TEXTURE_2D_ARRAY_EXT:
1373 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1374 return (ctx->Extensions.MESA_texture_array ||
1375 ctx->Extensions.EXT_texture_array);
1380 _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims);
1387 * Check if the given texture target value is legal for a
1388 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1389 * The difference compared to legal_teximage_target() above is that
1390 * proxy targets are not supported.
1393 legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target)
1397 return target == GL_TEXTURE_1D;
1402 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1403 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1404 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1405 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1406 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1407 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1408 return ctx->Extensions.ARB_texture_cube_map;
1409 case GL_TEXTURE_RECTANGLE_NV:
1410 return ctx->Extensions.NV_texture_rectangle;
1411 case GL_TEXTURE_1D_ARRAY_EXT:
1412 return (ctx->Extensions.MESA_texture_array ||
1413 ctx->Extensions.EXT_texture_array);
1421 case GL_TEXTURE_2D_ARRAY_EXT:
1422 return (ctx->Extensions.MESA_texture_array ||
1423 ctx->Extensions.EXT_texture_array);
1428 _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()",
1436 * Test the glTexImage[123]D() parameters for errors.
1438 * \param ctx GL context.
1439 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1440 * \param target texture target given by the user.
1441 * \param level image level given by the user.
1442 * \param internalFormat internal format given by the user.
1443 * \param format pixel data format given by the user.
1444 * \param type pixel data type given by the user.
1445 * \param width image width given by the user.
1446 * \param height image height given by the user.
1447 * \param depth image depth given by the user.
1448 * \param border image border given by the user.
1450 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1452 * Verifies each of the parameters against the constants specified in
1453 * __struct gl_contextRec::Const and the supported extensions, and according
1454 * to the OpenGL specification.
1457 texture_error_check( struct gl_context *ctx,
1458 GLuint dimensions, GLenum target,
1459 GLint level, GLint internalFormat,
1460 GLenum format, GLenum type,
1461 GLint width, GLint height,
1462 GLint depth, GLint border )
1464 const GLenum proxyTarget = get_proxy_target(target);
1465 const GLboolean isProxy = target == proxyTarget;
1466 GLboolean sizeOK = GL_TRUE;
1467 GLboolean colorFormat;
1469 /* Even though there are no color-index textures, we still have to support
1470 * uploading color-index data and remapping it to RGB via the
1471 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1473 const GLboolean indexFormat = (format == GL_COLOR_INDEX);
1475 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1476 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1478 _mesa_error(ctx, GL_INVALID_VALUE,
1479 "glTexImage%dD(level=%d)", dimensions, level);
1485 if (border < 0 || border > 1 ||
1486 ((target == GL_TEXTURE_RECTANGLE_NV ||
1487 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1489 _mesa_error(ctx, GL_INVALID_VALUE,
1490 "glTexImage%dD(border=%d)", dimensions, border);
1495 if (width < 0 || height < 0 || depth < 0) {
1497 _mesa_error(ctx, GL_INVALID_VALUE,
1498 "glTexImage%dD(width, height or depth < 0)", dimensions);
1503 /* Do this simple check before calling the TestProxyTexImage() function */
1504 if (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
1505 sizeOK = (width == height);
1509 * Use the proxy texture driver hook to see if the size/level/etc are
1512 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
1513 internalFormat, format,
1514 type, width, height,
1518 _mesa_error(ctx, GL_INVALID_VALUE,
1519 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1520 dimensions, level, width, height, depth);
1525 /* Check internalFormat */
1526 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1528 _mesa_error(ctx, GL_INVALID_VALUE,
1529 "glTexImage%dD(internalFormat=%s)",
1530 dimensions, _mesa_lookup_enum_by_nr(internalFormat));
1535 /* Check incoming image format and type */
1536 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1537 /* Normally, GL_INVALID_OPERATION is generated by a format/type
1538 * mismatch (see the 1.2 spec page 94, sec 3.6.4.). But with the
1539 * GL_EXT_texture_integer extension, some combinations should generate
1540 * GL_INVALID_ENUM instead (grr!).
1543 GLenum error = _mesa_is_integer_format(format)
1544 ? GL_INVALID_ENUM : GL_INVALID_OPERATION;
1545 _mesa_error(ctx, error,
1546 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1547 dimensions, format, type);
1552 /* make sure internal format and format basically agree */
1553 colorFormat = _mesa_is_color_format(format);
1554 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
1555 (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) ||
1556 (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) ||
1557 (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) ||
1558 (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) {
1560 _mesa_error(ctx, GL_INVALID_OPERATION,
1561 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1562 dimensions, internalFormat, format);
1566 /* additional checks for ycbcr textures */
1567 if (internalFormat == GL_YCBCR_MESA) {
1568 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1569 if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1570 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
1572 _mesa_snprintf(message, sizeof(message),
1573 "glTexImage%dD(format/type YCBCR mismatch", dimensions);
1574 _mesa_error(ctx, GL_INVALID_ENUM, "%s", message);
1575 return GL_TRUE; /* error */
1577 if (target != GL_TEXTURE_2D &&
1578 target != GL_PROXY_TEXTURE_2D &&
1579 target != GL_TEXTURE_RECTANGLE_NV &&
1580 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1582 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
1588 _mesa_snprintf(message, sizeof(message),
1589 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1590 dimensions, border);
1591 _mesa_error(ctx, GL_INVALID_VALUE, "%s", message);
1597 /* additional checks for depth textures */
1598 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
1599 /* Only 1D, 2D, rect and array textures supported, not 3D or cubes */
1600 if (target != GL_TEXTURE_1D &&
1601 target != GL_PROXY_TEXTURE_1D &&
1602 target != GL_TEXTURE_2D &&
1603 target != GL_PROXY_TEXTURE_2D &&
1604 target != GL_TEXTURE_1D_ARRAY &&
1605 target != GL_PROXY_TEXTURE_1D_ARRAY &&
1606 target != GL_TEXTURE_2D_ARRAY &&
1607 target != GL_PROXY_TEXTURE_2D_ARRAY &&
1608 target != GL_TEXTURE_RECTANGLE_ARB &&
1609 target != GL_PROXY_TEXTURE_RECTANGLE_ARB) {
1611 _mesa_error(ctx, GL_INVALID_ENUM,
1612 "glTexImage(target/internalFormat)");
1617 /* additional checks for compressed textures */
1618 if (_mesa_is_compressed_format(ctx, internalFormat)) {
1619 if (!target_can_be_compressed(ctx, target, internalFormat)) {
1621 _mesa_error(ctx, GL_INVALID_ENUM,
1622 "glTexImage%dD(target)", dimensions);
1627 _mesa_error(ctx, GL_INVALID_OPERATION,
1628 "glTexImage%dD(border!=0)", dimensions);
1634 /* additional checks for integer textures */
1635 if (ctx->Extensions.EXT_texture_integer &&
1636 (_mesa_is_integer_format(format) !=
1637 _mesa_is_integer_format(internalFormat))) {
1639 _mesa_error(ctx, GL_INVALID_OPERATION,
1640 "glTexImage%dD(integer/non-integer format mismatch)",
1646 /* if we get here, the parameters are OK */
1652 * Test glTexSubImage[123]D() parameters for errors.
1654 * \param ctx GL context.
1655 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1656 * \param target texture target given by the user.
1657 * \param level image level given by the user.
1658 * \param xoffset sub-image x offset given by the user.
1659 * \param yoffset sub-image y offset given by the user.
1660 * \param zoffset sub-image z offset given by the user.
1661 * \param format pixel data format given by the user.
1662 * \param type pixel data type given by the user.
1663 * \param width image width given by the user.
1664 * \param height image height given by the user.
1665 * \param depth image depth given by the user.
1667 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1669 * Verifies each of the parameters against the constants specified in
1670 * __struct gl_contextRec::Const and the supported extensions, and according
1671 * to the OpenGL specification.
1674 subtexture_error_check( struct gl_context *ctx, GLuint dimensions,
1675 GLenum target, GLint level,
1676 GLint xoffset, GLint yoffset, GLint zoffset,
1677 GLint width, GLint height, GLint depth,
1678 GLenum format, GLenum type )
1680 /* Basic level check */
1681 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1682 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
1686 /* Check for negative sizes */
1688 _mesa_error(ctx, GL_INVALID_VALUE,
1689 "glTexSubImage%dD(width=%d)", dimensions, width);
1692 if (height < 0 && dimensions > 1) {
1693 _mesa_error(ctx, GL_INVALID_VALUE,
1694 "glTexSubImage%dD(height=%d)", dimensions, height);
1697 if (depth < 0 && dimensions > 2) {
1698 _mesa_error(ctx, GL_INVALID_VALUE,
1699 "glTexSubImage%dD(depth=%d)", dimensions, depth);
1703 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1704 /* As with the glTexImage2D check above, the error code here
1705 * depends on texture integer.
1707 GLenum error = _mesa_is_integer_format(format)
1708 ? GL_INVALID_OPERATION : GL_INVALID_ENUM;
1709 _mesa_error(ctx, error,
1710 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
1711 dimensions, format, type);
1720 * Do second part of glTexSubImage which depends on the destination texture.
1721 * \return GL_TRUE if error recorded, GL_FALSE otherwise
1724 subtexture_error_check2( struct gl_context *ctx, GLuint dimensions,
1725 GLenum target, GLint level,
1726 GLint xoffset, GLint yoffset, GLint zoffset,
1727 GLint width, GLint height, GLint depth,
1728 GLenum format, GLenum type,
1729 const struct gl_texture_image *destTex )
1732 /* undefined image level */
1733 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
1737 if (xoffset < -((GLint)destTex->Border)) {
1738 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
1742 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
1743 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
1747 if (dimensions > 1) {
1748 if (yoffset < -((GLint)destTex->Border)) {
1749 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
1753 if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
1754 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
1759 if (dimensions > 2) {
1760 if (zoffset < -((GLint)destTex->Border)) {
1761 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
1764 if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) {
1765 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
1770 if (_mesa_is_format_compressed(destTex->TexFormat)) {
1773 /* do tests which depend on compression block size */
1774 _mesa_get_format_block_size(destTex->TexFormat, &bw, &bh);
1776 /* offset must be multiple of block size */
1777 if ((xoffset % bw != 0) || (yoffset % bh != 0)) {
1778 _mesa_error(ctx, GL_INVALID_OPERATION,
1779 "glTexSubImage%dD(xoffset = %d, yoffset = %d)",
1780 dimensions, xoffset, yoffset);
1783 /* size must be multiple of bw by bh or equal to whole texture size */
1784 if ((width % bw != 0) && (GLuint) width != destTex->Width) {
1785 _mesa_error(ctx, GL_INVALID_OPERATION,
1786 "glTexSubImage%dD(width = %d)", dimensions, width);
1789 if ((height % bh != 0) && (GLuint) height != destTex->Height) {
1790 _mesa_error(ctx, GL_INVALID_OPERATION,
1791 "glTexSubImage%dD(height = %d)", dimensions, height);
1801 * Test glCopyTexImage[12]D() parameters for errors.
1803 * \param ctx GL context.
1804 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1805 * \param target texture target given by the user.
1806 * \param level image level given by the user.
1807 * \param internalFormat internal format given by the user.
1808 * \param width image width given by the user.
1809 * \param height image height given by the user.
1810 * \param border texture border.
1812 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1814 * Verifies each of the parameters against the constants specified in
1815 * __struct gl_contextRec::Const and the supported extensions, and according
1816 * to the OpenGL specification.
1819 copytexture_error_check( struct gl_context *ctx, GLuint dimensions,
1820 GLenum target, GLint level, GLint internalFormat,
1821 GLint width, GLint height, GLint border )
1823 const GLenum proxyTarget = get_proxy_target(target);
1824 const GLenum type = GL_FLOAT;
1829 if (!legal_texsubimage_target(ctx, dimensions, target)) {
1830 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)",
1831 dimensions, _mesa_lookup_enum_by_nr(target));
1835 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1836 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1837 _mesa_error(ctx, GL_INVALID_VALUE,
1838 "glCopyTexImage%dD(level=%d)", dimensions, level);
1842 /* Check that the source buffer is complete */
1843 if (ctx->ReadBuffer->Name) {
1844 if (ctx->ReadBuffer->_Status == 0) {
1845 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
1847 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
1848 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
1849 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
1855 if (border < 0 || border > 1 ||
1856 ((target == GL_TEXTURE_RECTANGLE_NV ||
1857 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1861 baseFormat = _mesa_base_tex_format(ctx, internalFormat);
1862 if (baseFormat < 0) {
1863 _mesa_error(ctx, GL_INVALID_VALUE,
1864 "glCopyTexImage%dD(internalFormat)", dimensions);
1868 if (!_mesa_source_buffer_exists(ctx, baseFormat)) {
1869 _mesa_error(ctx, GL_INVALID_OPERATION,
1870 "glCopyTexImage%dD(missing readbuffer)", dimensions);
1874 /* Do size, level checking */
1875 sizeOK = (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB)
1876 ? (width == height) : 1;
1878 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
1879 internalFormat, baseFormat,
1880 type, width, height,
1884 if (dimensions == 1) {
1885 _mesa_error(ctx, GL_INVALID_VALUE,
1886 "glCopyTexImage1D(width=%d)", width);
1889 ASSERT(dimensions == 2);
1890 _mesa_error(ctx, GL_INVALID_VALUE,
1891 "glCopyTexImage2D(width=%d, height=%d)", width, height);
1896 if (_mesa_is_compressed_format(ctx, internalFormat)) {
1897 if (!target_can_be_compressed(ctx, target, internalFormat)) {
1898 _mesa_error(ctx, GL_INVALID_ENUM,
1899 "glCopyTexImage%dD(target)", dimensions);
1903 _mesa_error(ctx, GL_INVALID_OPERATION,
1904 "glCopyTexImage%dD(border!=0)", dimensions);
1909 /* if we get here, the parameters are OK */
1915 * Test glCopyTexSubImage[12]D() parameters for errors.
1916 * Note that this is the first part of error checking.
1917 * See also copytexsubimage_error_check2() below for the second part.
1919 * \param ctx GL context.
1920 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1921 * \param target texture target given by the user.
1922 * \param level image level given by the user.
1924 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1927 copytexsubimage_error_check1( struct gl_context *ctx, GLuint dimensions,
1928 GLenum target, GLint level)
1930 /* Check that the source buffer is complete */
1931 if (ctx->ReadBuffer->Name) {
1932 if (ctx->ReadBuffer->_Status == 0) {
1933 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
1935 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
1936 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
1937 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
1942 /* check target (proxies not allowed) */
1943 if (!legal_texsubimage_target(ctx, dimensions, target)) {
1944 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)",
1945 dimensions, _mesa_lookup_enum_by_nr(target));
1950 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1951 _mesa_error(ctx, GL_INVALID_VALUE,
1952 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
1961 * Second part of error checking for glCopyTexSubImage[12]D().
1962 * \param xoffset sub-image x offset given by the user.
1963 * \param yoffset sub-image y offset given by the user.
1964 * \param zoffset sub-image z offset given by the user.
1965 * \param width image width given by the user.
1966 * \param height image height given by the user.
1969 copytexsubimage_error_check2( struct gl_context *ctx, GLuint dimensions,
1970 GLenum target, GLint level,
1971 GLint xoffset, GLint yoffset, GLint zoffset,
1972 GLsizei width, GLsizei height,
1973 const struct gl_texture_image *teximage )
1975 /* check that dest tex image exists */
1977 _mesa_error(ctx, GL_INVALID_OPERATION,
1978 "glCopyTexSubImage%dD(undefined texture level: %d)",
1985 _mesa_error(ctx, GL_INVALID_VALUE,
1986 "glCopyTexSubImage%dD(width=%d)", dimensions, width);
1989 if (dimensions > 1 && height < 0) {
1990 _mesa_error(ctx, GL_INVALID_VALUE,
1991 "glCopyTexSubImage%dD(height=%d)", dimensions, height);
1995 /* check x/y offsets */
1996 if (xoffset < -((GLint)teximage->Border)) {
1997 _mesa_error(ctx, GL_INVALID_VALUE,
1998 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
2001 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
2002 _mesa_error(ctx, GL_INVALID_VALUE,
2003 "glCopyTexSubImage%dD(xoffset+width)", dimensions);
2006 if (dimensions > 1) {
2007 if (yoffset < -((GLint)teximage->Border)) {
2008 _mesa_error(ctx, GL_INVALID_VALUE,
2009 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
2012 /* NOTE: we're adding the border here, not subtracting! */
2013 if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
2014 _mesa_error(ctx, GL_INVALID_VALUE,
2015 "glCopyTexSubImage%dD(yoffset+height)", dimensions);
2020 /* check z offset */
2021 if (dimensions > 2) {
2022 if (zoffset < -((GLint)teximage->Border)) {
2023 _mesa_error(ctx, GL_INVALID_VALUE,
2024 "glCopyTexSubImage%dD(zoffset)", dimensions);
2027 if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
2028 _mesa_error(ctx, GL_INVALID_VALUE,
2029 "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
2034 if (_mesa_is_format_compressed(teximage->TexFormat)) {
2035 /* offset must be multiple of 4 */
2036 if ((xoffset & 3) || (yoffset & 3)) {
2037 _mesa_error(ctx, GL_INVALID_VALUE,
2038 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions);
2041 /* size must be multiple of 4 */
2042 if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
2043 _mesa_error(ctx, GL_INVALID_VALUE,
2044 "glCopyTexSubImage%dD(width)", dimensions);
2047 if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
2048 _mesa_error(ctx, GL_INVALID_VALUE,
2049 "glCopyTexSubImage%dD(height)", dimensions);
2054 if (teximage->InternalFormat == GL_YCBCR_MESA) {
2055 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
2059 if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) {
2060 _mesa_error(ctx, GL_INVALID_OPERATION,
2061 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2062 dimensions, teximage->_BaseFormat);
2066 /* If copying into an integer texture, the source buffer must also be
2069 if (_mesa_is_format_integer_color(teximage->TexFormat)) {
2070 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
2071 if (!_mesa_is_format_integer_color(rb->Format)) {
2072 _mesa_error(ctx, GL_INVALID_OPERATION,
2073 "glCopyTexSubImage%dD(source buffer is not integer format)",
2079 /* if we get here, the parameters are OK */
2084 /** Callback info for walking over FBO hash table */
2087 struct gl_context *ctx;
2088 struct gl_texture_object *texObj;
2094 * Check render to texture callback. Called from _mesa_HashWalk().
2097 check_rtt_cb(GLuint key, void *data, void *userData)
2099 struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
2100 const struct cb_info *info = (struct cb_info *) userData;
2101 struct gl_context *ctx = info->ctx;
2102 const struct gl_texture_object *texObj = info->texObj;
2103 const GLuint level = info->level, face = info->face;
2105 /* If this is a user-created FBO */
2108 /* check if any of the FBO's attachments point to 'texObj' */
2109 for (i = 0; i < BUFFER_COUNT; i++) {
2110 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
2111 if (att->Type == GL_TEXTURE &&
2112 att->Texture == texObj &&
2113 att->TextureLevel == level &&
2114 att->CubeMapFace == face) {
2115 ASSERT(_mesa_get_attachment_teximage(att));
2116 /* Tell driver about the new renderbuffer texture */
2117 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
2118 /* Mark fb status as indeterminate to force re-validation */
2127 * When a texture image is specified we have to check if it's bound to
2128 * any framebuffer objects (render to texture) in order to detect changes
2129 * in size or format since that effects FBO completeness.
2130 * Any FBOs rendering into the texture must be re-validated.
2133 update_fbo_texture(struct gl_context *ctx, struct gl_texture_object *texObj,
2134 GLuint face, GLuint level)
2136 /* Only check this texture if it's been marked as RenderToTexture */
2137 if (texObj->_RenderToTexture) {
2138 struct cb_info info;
2140 info.texObj = texObj;
2143 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info);
2149 * If the texture object's GenerateMipmap flag is set and we've
2150 * changed the texture base level image, regenerate the rest of the
2151 * mipmap levels now.
2154 check_gen_mipmap(struct gl_context *ctx, GLenum target,
2155 struct gl_texture_object *texObj, GLint level)
2157 ASSERT(target != GL_TEXTURE_CUBE_MAP);
2158 if (texObj->GenerateMipmap &&
2159 level == texObj->BaseLevel &&
2160 level < texObj->MaxLevel) {
2161 ASSERT(ctx->Driver.GenerateMipmap);
2162 ctx->Driver.GenerateMipmap(ctx, target, texObj);
2167 /** Debug helper: override the user-requested internal format */
2169 override_internal_format(GLenum internalFormat, GLint width, GLint height)
2172 if (internalFormat == GL_RGBA16F_ARB ||
2173 internalFormat == GL_RGBA32F_ARB) {
2174 printf("Convert rgba float tex to int %d x %d\n", width, height);
2177 else if (internalFormat == GL_RGB16F_ARB ||
2178 internalFormat == GL_RGB32F_ARB) {
2179 printf("Convert rgb float tex to int %d x %d\n", width, height);
2182 else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB ||
2183 internalFormat == GL_LUMINANCE_ALPHA32F_ARB) {
2184 printf("Convert luminance float tex to int %d x %d\n", width, height);
2185 return GL_LUMINANCE_ALPHA;
2187 else if (internalFormat == GL_LUMINANCE16F_ARB ||
2188 internalFormat == GL_LUMINANCE32F_ARB) {
2189 printf("Convert luminance float tex to int %d x %d\n", width, height);
2190 return GL_LUMINANCE;
2192 else if (internalFormat == GL_ALPHA16F_ARB ||
2193 internalFormat == GL_ALPHA32F_ARB) {
2194 printf("Convert luminance float tex to int %d x %d\n", width, height);
2198 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2199 internalFormat = GL_RGBA;
2203 return internalFormat;
2206 return internalFormat;
2212 * Choose the actual hardware format for a texture image.
2213 * Try to use the same format as the previous image level when possible.
2214 * Otherwise, ask the driver for the best format.
2215 * It's important to try to choose a consistant format for all levels
2216 * for efficient texture memory layout/allocation. In particular, this
2217 * comes up during automatic mipmap generation.
2220 _mesa_choose_texture_format(struct gl_context *ctx,
2221 struct gl_texture_object *texObj,
2222 GLenum target, GLint level,
2223 GLenum internalFormat, GLenum format, GLenum type)
2227 /* see if we've already chosen a format for the previous level */
2229 struct gl_texture_image *prevImage =
2230 _mesa_select_tex_image(ctx, texObj, target, level - 1);
2231 /* See if the prev level is defined and has an internal format which
2232 * matches the new internal format.
2235 prevImage->Width > 0 &&
2236 prevImage->InternalFormat == internalFormat) {
2237 /* use the same format */
2238 ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE);
2239 return prevImage->TexFormat;
2243 /* choose format from scratch */
2244 f = ctx->Driver.ChooseTextureFormat(ctx, internalFormat, format, type);
2245 ASSERT(f != MESA_FORMAT_NONE);
2250 * Adjust pixel unpack params and image dimensions to strip off the
2253 * Gallium and intel don't support texture borders. They've seldem been used
2254 * and seldom been implemented correctly anyway.
2256 * \param unpackNew returns the new pixel unpack parameters
2259 strip_texture_border(GLint *border,
2260 GLint *width, GLint *height, GLint *depth,
2261 const struct gl_pixelstore_attrib *unpack,
2262 struct gl_pixelstore_attrib *unpackNew)
2264 assert(*border > 0); /* sanity check */
2266 *unpackNew = *unpack;
2268 if (unpackNew->RowLength == 0)
2269 unpackNew->RowLength = *width;
2271 if (depth && unpackNew->ImageHeight == 0)
2272 unpackNew->ImageHeight = *height;
2274 unpackNew->SkipPixels += *border;
2276 unpackNew->SkipRows += *border;
2278 unpackNew->SkipImages += *border;
2280 assert(*width >= 3);
2281 *width = *width - 2 * *border;
2282 if (height && *height >= 3)
2283 *height = *height - 2 * *border;
2284 if (depth && *depth >= 3)
2285 *depth = *depth - 2 * *border;
2290 * Common code to implement all the glTexImage1D/2D/3D functions.
2293 teximage(struct gl_context *ctx, GLuint dims,
2294 GLenum target, GLint level, GLint internalFormat,
2295 GLsizei width, GLsizei height, GLsizei depth,
2296 GLint border, GLenum format, GLenum type,
2297 const GLvoid *pixels)
2300 struct gl_pixelstore_attrib unpack_no_border;
2301 const struct gl_pixelstore_attrib *unpack = &ctx->Unpack;
2303 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2305 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
2306 _mesa_debug(ctx, "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2308 _mesa_lookup_enum_by_nr(target), level,
2309 _mesa_lookup_enum_by_nr(internalFormat),
2310 width, height, depth, border,
2311 _mesa_lookup_enum_by_nr(format),
2312 _mesa_lookup_enum_by_nr(type), pixels);
2314 internalFormat = override_internal_format(internalFormat, width, height);
2316 /* target error checking */
2317 if (!legal_teximage_target(ctx, dims, target)) {
2318 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage%uD(target=%s)",
2319 dims, _mesa_lookup_enum_by_nr(target));
2323 /* general error checking */
2324 error = texture_error_check(ctx, dims, target, level, internalFormat,
2325 format, type, width, height, depth, border);
2327 if (_mesa_is_proxy_texture(target)) {
2328 /* Proxy texture: just clear or set state depending on error checking */
2329 struct gl_texture_image *texImage =
2330 _mesa_get_proxy_tex_image(ctx, target, level);
2333 /* when error, clear all proxy texture image parameters */
2335 clear_teximage_fields(texImage);
2338 /* no error, set the tex image parameters */
2339 struct gl_texture_object *texObj =
2340 _mesa_get_current_tex_object(ctx, target);
2341 gl_format texFormat = _mesa_choose_texture_format(ctx, texObj,
2346 if (legal_texture_size(ctx, texFormat, width, height, depth)) {
2347 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
2348 depth, border, internalFormat,
2351 else if (texImage) {
2352 clear_teximage_fields(texImage);
2357 /* non-proxy target */
2358 const GLuint face = _mesa_tex_target_to_face(target);
2359 struct gl_texture_object *texObj;
2360 struct gl_texture_image *texImage;
2363 return; /* error was recorded */
2366 /* Allow a hardware driver to just strip out the border, to provide
2367 * reliable but slightly incorrect hardware rendering instead of
2368 * rarely-tested software fallback rendering.
2370 if (border && ctx->Const.StripTextureBorder) {
2371 strip_texture_border(&border, &width, &height, &depth, unpack,
2373 unpack = &unpack_no_border;
2376 if (ctx->NewState & _NEW_PIXEL)
2377 _mesa_update_state(ctx);
2379 texObj = _mesa_get_current_tex_object(ctx, target);
2381 _mesa_lock_texture(ctx, texObj);
2383 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2386 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
2389 gl_format texFormat;
2391 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
2393 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
2394 internalFormat, format,
2397 if (legal_texture_size(ctx, texFormat, width, height, depth)) {
2398 _mesa_init_teximage_fields(ctx, target, texImage,
2399 width, height, depth,
2400 border, internalFormat, texFormat);
2402 /* Give the texture to the driver. <pixels> may be null. */
2403 ASSERT(ctx->Driver.TexImage3D);
2406 ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
2407 width, border, format,
2408 type, pixels, unpack, texObj,
2412 ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
2413 width, height, border, format,
2414 type, pixels, unpack, texObj,
2418 ctx->Driver.TexImage3D(ctx, target, level, internalFormat,
2419 width, height, depth, border, format,
2420 type, pixels, unpack, texObj,
2424 _mesa_problem(ctx, "invalid dims=%u in teximage()", dims);
2427 check_gen_mipmap(ctx, target, texObj, level);
2429 update_fbo_texture(ctx, texObj, face, level);
2432 texObj->_Complete = GL_FALSE;
2433 ctx->NewState |= _NEW_TEXTURE;
2436 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims);
2440 _mesa_unlock_texture(ctx, texObj);
2446 * Called from the API. Note that width includes the border.
2449 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
2450 GLsizei width, GLint border, GLenum format,
2451 GLenum type, const GLvoid *pixels )
2453 GET_CURRENT_CONTEXT(ctx);
2454 teximage(ctx, 1, target, level, internalFormat, width, 1, 1,
2455 border, format, type, pixels);
2460 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
2461 GLsizei width, GLsizei height, GLint border,
2462 GLenum format, GLenum type,
2463 const GLvoid *pixels )
2465 GET_CURRENT_CONTEXT(ctx);
2466 teximage(ctx, 2, target, level, internalFormat, width, height, 1,
2467 border, format, type, pixels);
2472 * Called by the API or display list executor.
2473 * Note that width and height include the border.
2476 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
2477 GLsizei width, GLsizei height, GLsizei depth,
2478 GLint border, GLenum format, GLenum type,
2479 const GLvoid *pixels )
2481 GET_CURRENT_CONTEXT(ctx);
2482 teximage(ctx, 3, target, level, internalFormat, width, height, depth,
2483 border, format, type, pixels);
2488 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
2489 GLsizei width, GLsizei height, GLsizei depth,
2490 GLint border, GLenum format, GLenum type,
2491 const GLvoid *pixels )
2493 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
2494 depth, border, format, type, pixels);
2498 #if FEATURE_OES_EGL_image
2500 _mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image)
2502 struct gl_texture_object *texObj;
2503 struct gl_texture_image *texImage;
2504 GET_CURRENT_CONTEXT(ctx);
2505 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2507 if (!ctx->Extensions.OES_EGL_image) {
2508 _mesa_error(ctx, GL_INVALID_OPERATION,
2509 "glEGLImageTargetTexture2DOES(unsupported)");
2513 if (target != GL_TEXTURE_2D) {
2514 _mesa_error(ctx, GL_INVALID_ENUM,
2515 "glEGLImageTargetTexture2D(target=%d)", target);
2519 if (ctx->NewState & _NEW_PIXEL)
2520 _mesa_update_state(ctx);
2522 texObj = _mesa_get_current_tex_object(ctx, target);
2523 _mesa_lock_texture(ctx, texObj);
2525 texImage = _mesa_get_tex_image(ctx, texObj, target, 0);
2527 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D");
2529 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
2531 ctx->Driver.EGLImageTargetTexture2D(ctx, target,
2532 texObj, texImage, image);
2535 texObj->_Complete = GL_FALSE;
2536 ctx->NewState |= _NEW_TEXTURE;
2538 _mesa_unlock_texture(ctx, texObj);
2546 * Implement all the glTexSubImage1/2/3D() functions.
2549 texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
2550 GLint xoffset, GLint yoffset, GLint zoffset,
2551 GLsizei width, GLsizei height, GLsizei depth,
2552 GLenum format, GLenum type, const GLvoid *pixels )
2554 struct gl_texture_object *texObj;
2555 struct gl_texture_image *texImage;
2557 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2559 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
2560 _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
2562 _mesa_lookup_enum_by_nr(target), level,
2563 xoffset, yoffset, zoffset, width, height, depth,
2564 _mesa_lookup_enum_by_nr(format),
2565 _mesa_lookup_enum_by_nr(type), pixels);
2567 /* check target (proxies not allowed) */
2568 if (!legal_texsubimage_target(ctx, dims, target)) {
2569 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)",
2570 dims, _mesa_lookup_enum_by_nr(target));
2574 if (ctx->NewState & _NEW_PIXEL)
2575 _mesa_update_state(ctx);
2577 if (subtexture_error_check(ctx, dims, target, level, xoffset, yoffset, zoffset,
2578 width, height, depth, format, type)) {
2579 return; /* error was detected */
2582 texObj = _mesa_get_current_tex_object(ctx, target);
2584 _mesa_lock_texture(ctx, texObj);
2586 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2588 if (subtexture_error_check2(ctx, dims, target, level,
2589 xoffset, yoffset, zoffset,
2590 width, height, depth,
2591 format, type, texImage)) {
2592 /* error was recorded */
2594 else if (width > 0 && height > 0 && depth > 0) {
2595 /* If we have a border, offset=-1 is legal. Bias by border width. */
2598 zoffset += texImage->Border;
2601 yoffset += texImage->Border;
2604 xoffset += texImage->Border;
2609 ctx->Driver.TexSubImage1D(ctx, target, level,
2611 format, type, pixels,
2612 &ctx->Unpack, texObj, texImage );
2615 ctx->Driver.TexSubImage2D(ctx, target, level,
2616 xoffset, yoffset, width, height,
2617 format, type, pixels,
2618 &ctx->Unpack, texObj, texImage );
2621 ctx->Driver.TexSubImage3D(ctx, target, level,
2622 xoffset, yoffset, zoffset,
2623 width, height, depth,
2624 format, type, pixels,
2625 &ctx->Unpack, texObj, texImage );
2628 _mesa_problem(ctx, "unexpected dims in subteximage()");
2631 check_gen_mipmap(ctx, target, texObj, level);
2633 ctx->NewState |= _NEW_TEXTURE;
2636 _mesa_unlock_texture(ctx, texObj);
2641 _mesa_TexSubImage1D( GLenum target, GLint level,
2642 GLint xoffset, GLsizei width,
2643 GLenum format, GLenum type,
2644 const GLvoid *pixels )
2646 GET_CURRENT_CONTEXT(ctx);
2647 texsubimage(ctx, 1, target, level,
2650 format, type, pixels);
2655 _mesa_TexSubImage2D( GLenum target, GLint level,
2656 GLint xoffset, GLint yoffset,
2657 GLsizei width, GLsizei height,
2658 GLenum format, GLenum type,
2659 const GLvoid *pixels )
2661 GET_CURRENT_CONTEXT(ctx);
2662 texsubimage(ctx, 2, target, level,
2663 xoffset, yoffset, 0,
2665 format, type, pixels);
2671 _mesa_TexSubImage3D( GLenum target, GLint level,
2672 GLint xoffset, GLint yoffset, GLint zoffset,
2673 GLsizei width, GLsizei height, GLsizei depth,
2674 GLenum format, GLenum type,
2675 const GLvoid *pixels )
2677 GET_CURRENT_CONTEXT(ctx);
2678 texsubimage(ctx, 3, target, level,
2679 xoffset, yoffset, zoffset,
2680 width, height, depth,
2681 format, type, pixels);
2687 * Implement the glCopyTexImage1/2D() functions.
2690 copyteximage(struct gl_context *ctx, GLuint dims,
2691 GLenum target, GLint level, GLenum internalFormat,
2692 GLint x, GLint y, GLsizei width, GLsizei height, GLint border )
2694 struct gl_texture_object *texObj;
2695 struct gl_texture_image *texImage;
2696 const GLuint face = _mesa_tex_target_to_face(target);
2698 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2700 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
2701 _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
2703 _mesa_lookup_enum_by_nr(target), level,
2704 _mesa_lookup_enum_by_nr(internalFormat),
2705 x, y, width, height, border);
2707 if (ctx->NewState & NEW_COPY_TEX_STATE)
2708 _mesa_update_state(ctx);
2710 if (copytexture_error_check(ctx, dims, target, level, internalFormat,
2711 width, height, border))
2714 texObj = _mesa_get_current_tex_object(ctx, target);
2716 _mesa_lock_texture(ctx, texObj);
2718 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2721 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
2724 /* choose actual hw format */
2725 gl_format texFormat = _mesa_choose_texture_format(ctx, texObj,
2730 if (legal_texture_size(ctx, texFormat, width, height, 1)) {
2731 GLint srcX = x, srcY = y, dstX = 0, dstY = 0;
2733 /* Free old texture image */
2734 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
2736 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
2737 border, internalFormat, texFormat);
2739 /* Allocate texture memory (no pixel data yet) */
2741 ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
2742 width, border, GL_NONE, GL_NONE, NULL,
2743 &ctx->Unpack, texObj, texImage);
2746 ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
2747 width, height, border, GL_NONE, GL_NONE,
2748 NULL, &ctx->Unpack, texObj, texImage);
2751 if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY,
2754 ctx->Driver.CopyTexSubImage1D(ctx, target, level, dstX,
2758 ctx->Driver.CopyTexSubImage2D(ctx, target, level, dstX, dstY,
2759 srcX, srcY, width, height);
2762 check_gen_mipmap(ctx, target, texObj, level);
2764 update_fbo_texture(ctx, texObj, face, level);
2767 texObj->_Complete = GL_FALSE;
2768 ctx->NewState |= _NEW_TEXTURE;
2771 /* probably too large of image */
2772 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
2776 _mesa_unlock_texture(ctx, texObj);
2782 _mesa_CopyTexImage1D( GLenum target, GLint level,
2783 GLenum internalFormat,
2785 GLsizei width, GLint border )
2787 GET_CURRENT_CONTEXT(ctx);
2788 copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border);
2794 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
2795 GLint x, GLint y, GLsizei width, GLsizei height,
2798 GET_CURRENT_CONTEXT(ctx);
2799 copyteximage(ctx, 2, target, level, internalFormat,
2800 x, y, width, height, border);
2806 * Implementation for glCopyTexSubImage1/2/3D() functions.
2809 copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
2810 GLint xoffset, GLint yoffset, GLint zoffset,
2811 GLint x, GLint y, GLsizei width, GLsizei height)
2813 struct gl_texture_object *texObj;
2814 struct gl_texture_image *texImage;
2816 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2818 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
2819 _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
2821 _mesa_lookup_enum_by_nr(target),
2822 level, xoffset, yoffset, zoffset, x, y, width, height);
2824 if (ctx->NewState & NEW_COPY_TEX_STATE)
2825 _mesa_update_state(ctx);
2827 if (copytexsubimage_error_check1(ctx, dims, target, level))
2830 texObj = _mesa_get_current_tex_object(ctx, target);
2832 _mesa_lock_texture(ctx, texObj);
2834 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2836 if (copytexsubimage_error_check2(ctx, dims, target, level, xoffset, yoffset,
2837 zoffset, width, height, texImage)) {
2838 /* error was recored */
2841 /* If we have a border, offset=-1 is legal. Bias by border width. */
2844 zoffset += texImage->Border;
2847 yoffset += texImage->Border;
2850 xoffset += texImage->Border;
2853 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
2857 ctx->Driver.CopyTexSubImage1D(ctx, target, level,
2858 xoffset, x, y, width);
2861 ctx->Driver.CopyTexSubImage2D(ctx, target, level,
2863 x, y, width, height);
2866 ctx->Driver.CopyTexSubImage3D(ctx, target, level,
2867 xoffset, yoffset, zoffset,
2868 x, y, width, height);
2871 _mesa_problem(ctx, "bad dims in copytexsubimage()");
2874 check_gen_mipmap(ctx, target, texObj, level);
2876 ctx->NewState |= _NEW_TEXTURE;
2880 _mesa_unlock_texture(ctx, texObj);
2885 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
2886 GLint xoffset, GLint x, GLint y, GLsizei width )
2888 GET_CURRENT_CONTEXT(ctx);
2889 copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1);
2895 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
2896 GLint xoffset, GLint yoffset,
2897 GLint x, GLint y, GLsizei width, GLsizei height )
2899 GET_CURRENT_CONTEXT(ctx);
2900 copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y,
2907 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
2908 GLint xoffset, GLint yoffset, GLint zoffset,
2909 GLint x, GLint y, GLsizei width, GLsizei height )
2911 GET_CURRENT_CONTEXT(ctx);
2912 copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset,
2913 x, y, width, height);
2919 /**********************************************************************/
2920 /****** Compressed Textures ******/
2921 /**********************************************************************/
2925 * Return expected size of a compressed texture.
2928 compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth,
2931 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
2932 return _mesa_format_image_size(mesaFormat, width, height, depth);
2937 * Return compressed texture block size, in pixels.
2940 get_compressed_block_size(GLenum glformat, GLuint *bw, GLuint *bh)
2942 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
2943 _mesa_get_format_block_size(mesaFormat, bw, bh);
2948 * Error checking for glCompressedTexImage[123]D().
2949 * \param reason returns reason for error, if any
2950 * \return error code or GL_NO_ERROR.
2953 compressed_texture_error_check(struct gl_context *ctx, GLint dimensions,
2954 GLenum target, GLint level,
2955 GLenum internalFormat, GLsizei width,
2956 GLsizei height, GLsizei depth, GLint border,
2957 GLsizei imageSize, char **reason)
2959 const GLenum proxyTarget = get_proxy_target(target);
2960 const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
2962 GLenum choose_format;
2964 GLenum proxy_format;
2966 *reason = ""; /* no error */
2968 if (!target_can_be_compressed(ctx, target, internalFormat)) {
2970 return GL_INVALID_ENUM;
2973 /* This will detect any invalid internalFormat value */
2974 if (!_mesa_is_compressed_format(ctx, internalFormat)) {
2975 *reason = "internalFormat";
2976 return GL_INVALID_ENUM;
2979 switch (internalFormat) {
2981 case GL_PALETTE4_RGB8_OES:
2982 case GL_PALETTE4_RGBA8_OES:
2983 case GL_PALETTE4_R5_G6_B5_OES:
2984 case GL_PALETTE4_RGBA4_OES:
2985 case GL_PALETTE4_RGB5_A1_OES:
2986 case GL_PALETTE8_RGB8_OES:
2987 case GL_PALETTE8_RGBA8_OES:
2988 case GL_PALETTE8_R5_G6_B5_OES:
2989 case GL_PALETTE8_RGBA4_OES:
2990 case GL_PALETTE8_RGB5_A1_OES:
2991 _mesa_cpal_compressed_format_type(internalFormat, &choose_format,
2993 proxy_format = choose_format;
2996 if (level > 0 || level < -maxLevels) {
2998 return GL_INVALID_VALUE;
3001 if (dimensions != 2) {
3002 *reason = "compressed paletted textures must be 2D";
3003 return GL_INVALID_OPERATION;
3006 /* Figure out the expected texture size (in bytes). This will be
3007 * checked against the actual size later.
3009 expectedSize = _mesa_cpal_compressed_size(level, internalFormat,
3012 /* This is for the benefit of the TestProxyTexImage below. It expects
3013 * level to be non-negative. OES_compressed_paletted_texture uses a
3014 * weird mechanism where the level specified to glCompressedTexImage2D
3015 * is -(n-1) number of levels in the texture, and the data specifies the
3016 * complete mipmap stack. This is done to ensure the palette is the
3017 * same for all levels.
3024 choose_format = GL_NONE;
3025 choose_type = GL_NONE;
3026 proxy_format = internalFormat;
3029 if (level < 0 || level >= maxLevels) {
3031 return GL_INVALID_VALUE;
3034 /* Figure out the expected texture size (in bytes). This will be
3035 * checked against the actual size later.
3037 expectedSize = compressed_tex_size(width, height, depth, internalFormat);
3041 /* This should really never fail */
3042 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
3043 *reason = "internalFormat";
3044 return GL_INVALID_ENUM;
3047 /* No compressed formats support borders at this time */
3049 *reason = "border != 0";
3050 return GL_INVALID_VALUE;
3053 /* For cube map, width must equal height */
3054 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3055 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height) {
3056 *reason = "width != height";
3057 return GL_INVALID_VALUE;
3060 /* check image size against compression block size */
3062 gl_format texFormat =
3063 ctx->Driver.ChooseTextureFormat(ctx, proxy_format,
3064 choose_format, choose_type);
3067 _mesa_get_format_block_size(texFormat, &bw, &bh);
3068 if ((width > bw && width % bw > 0) ||
3069 (height > bh && height % bh > 0)) {
3071 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is
3072 * generated [...] if any parameter combinations are not
3073 * supported by the specific compressed internal format.
3075 *reason = "invalid width or height for compression format";
3076 return GL_INVALID_OPERATION;
3080 /* check image sizes */
3081 if (!ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level,
3082 proxy_format, choose_format,
3084 width, height, depth, border)) {
3085 /* See error comment above */
3086 *reason = "invalid width, height or format";
3087 return GL_INVALID_OPERATION;
3090 /* check image size in bytes */
3091 if (expectedSize != imageSize) {
3092 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
3093 * if <imageSize> is not consistent with the format, dimensions, and
3094 * contents of the specified image.
3096 *reason = "imageSize inconsistant with width/height/format";
3097 return GL_INVALID_VALUE;
3105 * Error checking for glCompressedTexSubImage[123]D().
3106 * \warning There are some bad assumptions here about the size of compressed
3107 * texture tiles (multiple of 4) used to test the validity of the
3108 * offset and size parameters.
3109 * \return error code or GL_NO_ERROR.
3112 compressed_subtexture_error_check(struct gl_context *ctx, GLint dimensions,
3113 GLenum target, GLint level,
3114 GLint xoffset, GLint yoffset, GLint zoffset,
3115 GLsizei width, GLsizei height, GLsizei depth,
3116 GLenum format, GLsizei imageSize)
3118 GLint expectedSize, maxLevels = 0, maxTextureSize;
3122 if (dimensions == 1) {
3123 /* 1D compressed textures not allowed */
3124 return GL_INVALID_ENUM;
3126 else if (dimensions == 2) {
3127 if (target == GL_PROXY_TEXTURE_2D) {
3128 maxLevels = ctx->Const.MaxTextureLevels;
3130 else if (target == GL_TEXTURE_2D) {
3131 maxLevels = ctx->Const.MaxTextureLevels;
3133 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
3134 if (!ctx->Extensions.ARB_texture_cube_map)
3135 return GL_INVALID_ENUM; /*target*/
3136 maxLevels = ctx->Const.MaxCubeTextureLevels;
3138 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3139 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
3140 if (!ctx->Extensions.ARB_texture_cube_map)
3141 return GL_INVALID_ENUM; /*target*/
3142 maxLevels = ctx->Const.MaxCubeTextureLevels;
3145 return GL_INVALID_ENUM; /*target*/
3148 else if (dimensions == 3) {
3149 /* 3D compressed textures not allowed */
3150 return GL_INVALID_ENUM;
3153 maxTextureSize = 1 << (maxLevels - 1);
3155 /* this will catch any invalid compressed format token */
3156 if (!_mesa_is_compressed_format(ctx, format))
3157 return GL_INVALID_ENUM;
3159 if (width < 1 || width > maxTextureSize)
3160 return GL_INVALID_VALUE;
3162 if ((height < 1 || height > maxTextureSize)
3164 return GL_INVALID_VALUE;
3166 if (level < 0 || level >= maxLevels)
3167 return GL_INVALID_VALUE;
3170 * do checks which depend on compression block size
3172 get_compressed_block_size(format, &bw, &bh);
3174 if ((xoffset % bw != 0) || (yoffset % bh != 0))
3175 return GL_INVALID_VALUE;
3177 if ((width % bw != 0) && width != 2 && width != 1)
3178 return GL_INVALID_VALUE;
3180 if ((height % bh != 0) && height != 2 && height != 1)
3181 return GL_INVALID_VALUE;
3183 expectedSize = compressed_tex_size(width, height, depth, format);
3184 if (expectedSize != imageSize)
3185 return GL_INVALID_VALUE;
3192 * Do second part of glCompressedTexSubImage error checking.
3193 * \return GL_TRUE if error found, GL_FALSE otherwise.
3196 compressed_subtexture_error_check2(struct gl_context *ctx, GLuint dims,
3197 GLsizei width, GLsizei height,
3198 GLsizei depth, GLenum format,
3199 struct gl_texture_image *texImage)
3202 if ((GLint) format != texImage->InternalFormat) {
3203 _mesa_error(ctx, GL_INVALID_OPERATION,
3204 "glCompressedTexSubImage%uD(format=0x%x)", dims, format);
3208 if (((width == 1 || width == 2) &&
3209 width != (GLsizei) texImage->Width) ||
3210 (width > (GLsizei) texImage->Width)) {
3211 _mesa_error(ctx, GL_INVALID_VALUE,
3212 "glCompressedTexSubImage%uD(width=%d)", dims, width);
3217 if (((height == 1 || height == 2) &&
3218 height != (GLsizei) texImage->Height) ||
3219 (height > (GLsizei) texImage->Height)) {
3220 _mesa_error(ctx, GL_INVALID_VALUE,
3221 "glCompressedTexSubImage%uD(height=%d)", dims, height);
3227 if (((depth == 1 || depth == 2) &&
3228 depth != (GLsizei) texImage->Depth) ||
3229 (depth > (GLsizei) texImage->Depth)) {
3230 _mesa_error(ctx, GL_INVALID_VALUE,
3231 "glCompressedTexSubImage%uD(depth=%d)", dims, depth);
3241 * Implementation of the glCompressedTexImage1/2/3D() functions.
3244 compressedteximage(struct gl_context *ctx, GLuint dims,
3245 GLenum target, GLint level,
3246 GLenum internalFormat, GLsizei width,
3247 GLsizei height, GLsizei depth, GLint border,
3248 GLsizei imageSize, const GLvoid *data)
3253 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3255 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3257 "glCompressedTexImage%uDARB %s %d %s %d %d %d %d %d %p\n",
3259 _mesa_lookup_enum_by_nr(target), level,
3260 _mesa_lookup_enum_by_nr(internalFormat),
3261 width, height, depth, border, imageSize, data);
3264 if (!legal_teximage_target(ctx, dims, target)) {
3265 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(target=%s)",
3266 dims, _mesa_lookup_enum_by_nr(target));
3270 error = compressed_texture_error_check(ctx, dims, target, level,
3271 internalFormat, width, height, depth,
3272 border, imageSize, &reason);
3275 _mesa_error(ctx, error, "glCompressedTexImage%uD(%s)", dims, reason);
3280 /* XXX this is kind of a hack */
3282 switch (internalFormat) {
3283 case GL_PALETTE4_RGB8_OES:
3284 case GL_PALETTE4_RGBA8_OES:
3285 case GL_PALETTE4_R5_G6_B5_OES:
3286 case GL_PALETTE4_RGBA4_OES:
3287 case GL_PALETTE4_RGB5_A1_OES:
3288 case GL_PALETTE8_RGB8_OES:
3289 case GL_PALETTE8_RGBA8_OES:
3290 case GL_PALETTE8_R5_G6_B5_OES:
3291 case GL_PALETTE8_RGBA4_OES:
3292 case GL_PALETTE8_RGB5_A1_OES:
3293 _mesa_cpal_compressed_teximage2d(target, level, internalFormat,
3294 width, height, imageSize, data);
3300 if (_mesa_is_proxy_texture(target)) {
3301 /* Proxy texture: just check for errors and update proxy state */
3302 struct gl_texture_image *texImage;
3305 struct gl_texture_object *texObj =
3306 _mesa_get_current_tex_object(ctx, target);
3307 gl_format texFormat =
3308 _mesa_choose_texture_format(ctx, texObj, target, level,
3309 internalFormat, GL_NONE, GL_NONE);
3310 if (!legal_texture_size(ctx, texFormat, width, height, depth)) {
3311 error = GL_OUT_OF_MEMORY;
3315 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3318 /* if error, clear all proxy texture image parameters */
3319 clear_teximage_fields(texImage);
3322 /* no error: store the teximage parameters */
3323 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
3324 depth, border, internalFormat,
3330 /* non-proxy target */
3331 struct gl_texture_object *texObj;
3332 struct gl_texture_image *texImage;
3335 _mesa_error(ctx, error, "glCompressedTexImage%uD", dims);
3339 texObj = _mesa_get_current_tex_object(ctx, target);
3341 _mesa_lock_texture(ctx, texObj);
3343 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3345 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3346 "glCompressedTexImage%uD", dims);
3349 gl_format texFormat;
3351 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3353 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
3354 internalFormat, GL_NONE,
3357 if (legal_texture_size(ctx, texFormat, width, height, depth)) {
3358 _mesa_init_teximage_fields(ctx, target, texImage,
3359 width, height, depth,
3360 border, internalFormat, texFormat);
3364 ASSERT(ctx->Driver.CompressedTexImage1D);
3365 ctx->Driver.CompressedTexImage1D(ctx, target, level,
3368 border, imageSize, data,
3372 ASSERT(ctx->Driver.CompressedTexImage2D);
3373 ctx->Driver.CompressedTexImage2D(ctx, target, level,
3376 border, imageSize, data,
3380 ASSERT(ctx->Driver.CompressedTexImage3D);
3381 ctx->Driver.CompressedTexImage3D(ctx, target, level,
3383 width, height, depth,
3384 border, imageSize, data,
3388 _mesa_problem(ctx, "bad dims in compressedteximage");
3391 check_gen_mipmap(ctx, target, texObj, level);
3394 texObj->_Complete = GL_FALSE;
3395 ctx->NewState |= _NEW_TEXTURE;
3398 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3399 "glCompressedTexImage%uD", dims);
3403 _mesa_unlock_texture(ctx, texObj);
3409 _mesa_CompressedTexImage1DARB(GLenum target, GLint level,
3410 GLenum internalFormat, GLsizei width,
3411 GLint border, GLsizei imageSize,
3414 GET_CURRENT_CONTEXT(ctx);
3415 compressedteximage(ctx, 1, target, level, internalFormat,
3416 width, 1, 1, border, imageSize, data);
3421 _mesa_CompressedTexImage2DARB(GLenum target, GLint level,
3422 GLenum internalFormat, GLsizei width,
3423 GLsizei height, GLint border, GLsizei imageSize,
3426 GET_CURRENT_CONTEXT(ctx);
3427 compressedteximage(ctx, 2, target, level, internalFormat,
3428 width, height, 1, border, imageSize, data);
3433 _mesa_CompressedTexImage3DARB(GLenum target, GLint level,
3434 GLenum internalFormat, GLsizei width,
3435 GLsizei height, GLsizei depth, GLint border,
3436 GLsizei imageSize, const GLvoid *data)
3438 GET_CURRENT_CONTEXT(ctx);
3439 compressedteximage(ctx, 3, target, level, internalFormat,
3440 width, height, depth, border, imageSize, data);
3445 * Common helper for glCompressedTexSubImage1/2/3D().
3448 compressed_tex_sub_image(GLuint dims, GLenum target, GLint level,
3449 GLint xoffset, GLint yoffset, GLint zoffset,
3450 GLsizei width, GLsizei height, GLsizei depth,
3451 GLenum format, GLsizei imageSize, const GLvoid *data)
3453 struct gl_texture_object *texObj;
3454 struct gl_texture_image *texImage;
3456 GET_CURRENT_CONTEXT(ctx);
3457 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3459 error = compressed_subtexture_error_check(ctx, dims, target, level,
3460 xoffset, 0, 0, /* pos */
3461 width, height, depth, /* size */
3464 _mesa_error(ctx, error, "glCompressedTexSubImage%uD", dims);
3468 texObj = _mesa_get_current_tex_object(ctx, target);
3470 _mesa_lock_texture(ctx, texObj);
3472 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3475 if (compressed_subtexture_error_check2(ctx, dims, width, height, depth,
3476 format, texImage)) {
3477 /* error was recorded */
3479 else if (width > 0 && height > 0 && depth > 0) {
3482 if (ctx->Driver.CompressedTexSubImage1D) {
3483 ctx->Driver.CompressedTexSubImage1D(ctx, target, level,
3485 format, imageSize, data,
3490 if (ctx->Driver.CompressedTexSubImage2D) {
3491 ctx->Driver.CompressedTexSubImage2D(ctx, target, level,
3494 format, imageSize, data,
3499 if (ctx->Driver.CompressedTexSubImage3D) {
3500 ctx->Driver.CompressedTexSubImage3D(ctx, target, level,
3501 xoffset, yoffset, zoffset,
3502 width, height, depth,
3503 format, imageSize, data,
3511 check_gen_mipmap(ctx, target, texObj, level);
3513 ctx->NewState |= _NEW_TEXTURE;
3516 _mesa_unlock_texture(ctx, texObj);
3521 _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
3522 GLsizei width, GLenum format,
3523 GLsizei imageSize, const GLvoid *data)
3525 compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1,
3526 format, imageSize, data);
3531 _mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
3532 GLint yoffset, GLsizei width, GLsizei height,
3533 GLenum format, GLsizei imageSize,
3536 compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0,
3537 width, height, 1, format, imageSize, data);
3542 _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
3543 GLint yoffset, GLint zoffset, GLsizei width,
3544 GLsizei height, GLsizei depth, GLenum format,
3545 GLsizei imageSize, const GLvoid *data)
3547 compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset,
3548 width, height, depth, format, imageSize, data);
3553 * Helper for glTexBuffer(). Check if internalFormat is legal. If so,
3554 * return the basic data type and number of components for the format.
3555 * \param return GL_TRUE if internalFormat is legal, GL_FALSE otherwise
3558 get_sized_format_info(const struct gl_context *ctx, GLenum internalFormat,
3559 GLenum *datatype, GLuint *components)
3561 switch (internalFormat) {
3563 *datatype = GL_UNSIGNED_BYTE;
3567 *datatype = GL_UNSIGNED_SHORT;
3570 case GL_ALPHA16F_ARB:
3571 *datatype = GL_HALF_FLOAT;
3574 case GL_ALPHA32F_ARB:
3575 *datatype = GL_FLOAT;
3578 case GL_ALPHA8I_EXT:
3579 *datatype = GL_BYTE;
3582 case GL_ALPHA16I_EXT:
3583 *datatype = GL_SHORT;
3586 case GL_ALPHA32I_EXT:
3590 case GL_ALPHA8UI_EXT:
3591 *datatype = GL_UNSIGNED_BYTE;
3594 case GL_ALPHA16UI_EXT:
3595 *datatype = GL_UNSIGNED_SHORT;
3598 case GL_ALPHA32UI_EXT:
3599 *datatype = GL_UNSIGNED_INT;
3603 *datatype = GL_UNSIGNED_BYTE;
3606 case GL_LUMINANCE16:
3607 *datatype = GL_UNSIGNED_SHORT;
3610 case GL_LUMINANCE16F_ARB:
3611 *datatype = GL_HALF_FLOAT;
3614 case GL_LUMINANCE32F_ARB:
3615 *datatype = GL_FLOAT;
3618 case GL_LUMINANCE8I_EXT:
3619 *datatype = GL_BYTE;
3622 case GL_LUMINANCE16I_EXT:
3623 *datatype = GL_SHORT;
3626 case GL_LUMINANCE32I_EXT:
3630 case GL_LUMINANCE8UI_EXT:
3631 *datatype = GL_UNSIGNED_BYTE;
3634 case GL_LUMINANCE16UI_EXT:
3635 *datatype = GL_UNSIGNED_SHORT;
3638 case GL_LUMINANCE32UI_EXT:
3639 *datatype = GL_UNSIGNED_INT;
3642 case GL_LUMINANCE8_ALPHA8:
3643 *datatype = GL_UNSIGNED_BYTE;
3646 case GL_LUMINANCE16_ALPHA16:
3647 *datatype = GL_UNSIGNED_SHORT;
3650 case GL_LUMINANCE_ALPHA16F_ARB:
3651 *datatype = GL_HALF_FLOAT;
3654 case GL_LUMINANCE_ALPHA32F_ARB:
3655 *datatype = GL_FLOAT;
3658 case GL_LUMINANCE_ALPHA8I_EXT:
3659 *datatype = GL_BYTE;
3662 case GL_LUMINANCE_ALPHA16I_EXT:
3663 *datatype = GL_SHORT;
3666 case GL_LUMINANCE_ALPHA32I_EXT:
3670 case GL_LUMINANCE_ALPHA8UI_EXT:
3671 *datatype = GL_UNSIGNED_BYTE;
3674 case GL_LUMINANCE_ALPHA16UI_EXT:
3675 *datatype = GL_UNSIGNED_SHORT;
3678 case GL_LUMINANCE_ALPHA32UI_EXT:
3679 *datatype = GL_UNSIGNED_INT;
3683 *datatype = GL_UNSIGNED_BYTE;
3686 case GL_INTENSITY16:
3687 *datatype = GL_UNSIGNED_SHORT;
3690 case GL_INTENSITY16F_ARB:
3691 *datatype = GL_HALF_FLOAT;
3694 case GL_INTENSITY32F_ARB:
3695 *datatype = GL_FLOAT;
3698 case GL_INTENSITY8I_EXT:
3699 *datatype = GL_BYTE;
3702 case GL_INTENSITY16I_EXT:
3703 *datatype = GL_SHORT;
3706 case GL_INTENSITY32I_EXT:
3710 case GL_INTENSITY8UI_EXT:
3711 *datatype = GL_UNSIGNED_BYTE;
3714 case GL_INTENSITY16UI_EXT:
3715 *datatype = GL_UNSIGNED_SHORT;
3718 case GL_INTENSITY32UI_EXT:
3719 *datatype = GL_UNSIGNED_INT;
3723 *datatype = GL_UNSIGNED_BYTE;
3727 *datatype = GL_UNSIGNED_SHORT;
3730 case GL_RGBA16F_ARB:
3731 *datatype = GL_HALF_FLOAT;
3734 case GL_RGBA32F_ARB:
3735 *datatype = GL_FLOAT;
3739 *datatype = GL_BYTE;
3742 case GL_RGBA16I_EXT:
3743 *datatype = GL_SHORT;
3746 case GL_RGBA32I_EXT:
3750 case GL_RGBA8UI_EXT:
3751 *datatype = GL_UNSIGNED_BYTE;
3754 case GL_RGBA16UI_EXT:
3755 *datatype = GL_UNSIGNED_SHORT;
3758 case GL_RGBA32UI_EXT:
3759 *datatype = GL_UNSIGNED_INT;
3766 if (*datatype == GL_FLOAT && !ctx->Extensions.ARB_texture_float)
3769 if (*datatype == GL_HALF_FLOAT && !ctx->Extensions.ARB_half_float_pixel)
3776 /** GL_ARB_texture_buffer_object */
3778 _mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer)
3780 struct gl_texture_object *texObj;
3781 struct gl_buffer_object *bufObj;
3785 GET_CURRENT_CONTEXT(ctx);
3786 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3788 if (!ctx->Extensions.ARB_texture_buffer_object) {
3789 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer");
3793 if (target != GL_TEXTURE_BUFFER_ARB) {
3794 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(target)");
3798 if (!get_sized_format_info(ctx, internalFormat, &dataType, &comps)) {
3799 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(internalFormat 0x%x)",
3804 bufObj = _mesa_lookup_bufferobj(ctx, buffer);
3805 if (buffer && !bufObj) {
3806 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer(buffer %u)", buffer);
3810 texObj = _mesa_get_current_tex_object(ctx, target);
3812 _mesa_lock_texture(ctx, texObj);
3814 _mesa_reference_buffer_object(ctx, &texObj->BufferObject, bufObj);
3815 texObj->BufferObjectFormat = internalFormat;
3817 _mesa_unlock_texture(ctx, texObj);