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) || ctx->Extensions.ARB_ES3_compatibility) {
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 == 10 + 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 ||
674 target == GL_PROXY_TEXTURE_2D_MULTISAMPLE ||
675 target == GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY);
680 * Return the proxy target which corresponds to the given texture target
683 _mesa_get_proxy_target(GLenum target)
687 case GL_PROXY_TEXTURE_1D:
688 return GL_PROXY_TEXTURE_1D;
690 case GL_PROXY_TEXTURE_2D:
691 return GL_PROXY_TEXTURE_2D;
693 case GL_PROXY_TEXTURE_3D:
694 return GL_PROXY_TEXTURE_3D;
695 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
696 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
697 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
698 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
699 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
700 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
701 case GL_TEXTURE_CUBE_MAP_ARB:
702 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
703 return GL_PROXY_TEXTURE_CUBE_MAP_ARB;
704 case GL_TEXTURE_RECTANGLE_NV:
705 case GL_PROXY_TEXTURE_RECTANGLE_NV:
706 return GL_PROXY_TEXTURE_RECTANGLE_NV;
707 case GL_TEXTURE_1D_ARRAY_EXT:
708 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
709 return GL_PROXY_TEXTURE_1D_ARRAY_EXT;
710 case GL_TEXTURE_2D_ARRAY_EXT:
711 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
712 return GL_PROXY_TEXTURE_2D_ARRAY_EXT;
713 case GL_TEXTURE_CUBE_MAP_ARRAY:
714 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
715 return GL_PROXY_TEXTURE_CUBE_MAP_ARRAY;
716 case GL_TEXTURE_2D_MULTISAMPLE:
717 case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
718 return GL_PROXY_TEXTURE_2D_MULTISAMPLE;
719 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
720 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
721 return GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY;
723 _mesa_problem(NULL, "unexpected target in _mesa_get_proxy_target()");
730 * Get the texture object that corresponds to the target of the given
731 * texture unit. The target should have already been checked for validity.
733 * \param ctx GL context.
734 * \param texUnit texture unit.
735 * \param target texture target.
737 * \return pointer to the texture object on success, or NULL on failure.
739 struct gl_texture_object *
740 _mesa_select_tex_object(struct gl_context *ctx,
741 const struct gl_texture_unit *texUnit,
744 const GLboolean arrayTex = (ctx->Extensions.MESA_texture_array ||
745 ctx->Extensions.EXT_texture_array);
749 return texUnit->CurrentTex[TEXTURE_1D_INDEX];
750 case GL_PROXY_TEXTURE_1D:
751 return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
753 return texUnit->CurrentTex[TEXTURE_2D_INDEX];
754 case GL_PROXY_TEXTURE_2D:
755 return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
757 return texUnit->CurrentTex[TEXTURE_3D_INDEX];
758 case GL_PROXY_TEXTURE_3D:
759 return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
760 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
761 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
762 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
763 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
764 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
765 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
766 case GL_TEXTURE_CUBE_MAP_ARB:
767 return ctx->Extensions.ARB_texture_cube_map
768 ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL;
769 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
770 return ctx->Extensions.ARB_texture_cube_map
771 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL;
772 case GL_TEXTURE_CUBE_MAP_ARRAY:
773 return ctx->Extensions.ARB_texture_cube_map_array
774 ? texUnit->CurrentTex[TEXTURE_CUBE_ARRAY_INDEX] : NULL;
775 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
776 return ctx->Extensions.ARB_texture_cube_map_array
777 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_ARRAY_INDEX] : NULL;
778 case GL_TEXTURE_RECTANGLE_NV:
779 return ctx->Extensions.NV_texture_rectangle
780 ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL;
781 case GL_PROXY_TEXTURE_RECTANGLE_NV:
782 return ctx->Extensions.NV_texture_rectangle
783 ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL;
784 case GL_TEXTURE_1D_ARRAY_EXT:
785 return arrayTex ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
786 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
787 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
788 case GL_TEXTURE_2D_ARRAY_EXT:
789 return arrayTex ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
790 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
791 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
792 case GL_TEXTURE_BUFFER:
793 return ctx->API == API_OPENGL_CORE &&
794 ctx->Extensions.ARB_texture_buffer_object ?
795 texUnit->CurrentTex[TEXTURE_BUFFER_INDEX] : NULL;
796 case GL_TEXTURE_EXTERNAL_OES:
797 return ctx->Extensions.OES_EGL_image_external
798 ? texUnit->CurrentTex[TEXTURE_EXTERNAL_INDEX] : NULL;
799 case GL_TEXTURE_2D_MULTISAMPLE:
800 return ctx->Extensions.ARB_texture_multisample
801 ? texUnit->CurrentTex[TEXTURE_2D_MULTISAMPLE_INDEX] : NULL;
802 case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
803 return ctx->Extensions.ARB_texture_multisample
804 ? ctx->Texture.ProxyTex[TEXTURE_2D_MULTISAMPLE_INDEX] : NULL;
805 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
806 return ctx->Extensions.ARB_texture_multisample
807 ? texUnit->CurrentTex[TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX] : NULL;
808 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
809 return ctx->Extensions.ARB_texture_multisample
810 ? ctx->Texture.ProxyTex[TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX] : NULL;
812 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
819 * Return pointer to texture object for given target on current texture unit.
821 struct gl_texture_object *
822 _mesa_get_current_tex_object(struct gl_context *ctx, GLenum target)
824 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
825 return _mesa_select_tex_object(ctx, texUnit, target);
830 * Get a texture image pointer from a texture object, given a texture
831 * target and mipmap level. The target and level parameters should
832 * have already been error-checked.
834 * \param ctx GL context.
835 * \param texObj texture unit.
836 * \param target texture target.
837 * \param level image level.
839 * \return pointer to the texture image structure, or NULL on failure.
841 struct gl_texture_image *
842 _mesa_select_tex_image(struct gl_context *ctx,
843 const struct gl_texture_object *texObj,
844 GLenum target, GLint level)
846 const GLuint face = _mesa_tex_target_to_face(target);
850 ASSERT(level < MAX_TEXTURE_LEVELS);
852 return texObj->Image[face][level];
857 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
858 * it and install it. Only return NULL if passed a bad parameter or run
861 struct gl_texture_image *
862 _mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj,
863 GLenum target, GLint level)
865 struct gl_texture_image *texImage;
870 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
872 texImage = ctx->Driver.NewTextureImage(ctx);
874 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
878 set_tex_image(texObj, target, level, texImage);
886 * Return pointer to the specified proxy texture image.
887 * Note that proxy textures are per-context, not per-texture unit.
888 * \return pointer to texture image or NULL if invalid target, invalid
889 * level, or out of memory.
891 static struct gl_texture_image *
892 get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level)
894 struct gl_texture_image *texImage;
901 case GL_PROXY_TEXTURE_1D:
902 if (level >= ctx->Const.MaxTextureLevels)
904 texIndex = TEXTURE_1D_INDEX;
906 case GL_PROXY_TEXTURE_2D:
907 if (level >= ctx->Const.MaxTextureLevels)
909 texIndex = TEXTURE_2D_INDEX;
911 case GL_PROXY_TEXTURE_3D:
912 if (level >= ctx->Const.Max3DTextureLevels)
914 texIndex = TEXTURE_3D_INDEX;
916 case GL_PROXY_TEXTURE_CUBE_MAP:
917 if (level >= ctx->Const.MaxCubeTextureLevels)
919 texIndex = TEXTURE_CUBE_INDEX;
921 case GL_PROXY_TEXTURE_RECTANGLE_NV:
924 texIndex = TEXTURE_RECT_INDEX;
926 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
927 if (level >= ctx->Const.MaxTextureLevels)
929 texIndex = TEXTURE_1D_ARRAY_INDEX;
931 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
932 if (level >= ctx->Const.MaxTextureLevels)
934 texIndex = TEXTURE_2D_ARRAY_INDEX;
936 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
937 if (level >= ctx->Const.MaxCubeTextureLevels)
939 texIndex = TEXTURE_CUBE_ARRAY_INDEX;
941 case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
944 texIndex = TEXTURE_2D_MULTISAMPLE_INDEX;
946 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
949 texIndex = TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX;
955 texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level];
957 texImage = ctx->Driver.NewTextureImage(ctx);
959 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
962 ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage;
963 /* Set the 'back' pointer */
964 texImage->TexObject = ctx->Texture.ProxyTex[texIndex];
971 * Get the maximum number of allowed mipmap levels.
973 * \param ctx GL context.
974 * \param target texture target.
976 * \return the maximum number of allowed mipmap levels for the given
977 * texture target, or zero if passed a bad target.
982 _mesa_max_texture_levels(struct gl_context *ctx, GLenum target)
986 case GL_PROXY_TEXTURE_1D:
988 case GL_PROXY_TEXTURE_2D:
989 return ctx->Const.MaxTextureLevels;
991 case GL_PROXY_TEXTURE_3D:
992 return ctx->Const.Max3DTextureLevels;
993 case GL_TEXTURE_CUBE_MAP:
994 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
995 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
996 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
997 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
998 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
999 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
1000 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1001 return ctx->Extensions.ARB_texture_cube_map
1002 ? ctx->Const.MaxCubeTextureLevels : 0;
1003 case GL_TEXTURE_RECTANGLE_NV:
1004 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1005 return ctx->Extensions.NV_texture_rectangle ? 1 : 0;
1006 case GL_TEXTURE_1D_ARRAY_EXT:
1007 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1008 case GL_TEXTURE_2D_ARRAY_EXT:
1009 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1010 return (ctx->Extensions.MESA_texture_array ||
1011 ctx->Extensions.EXT_texture_array)
1012 ? ctx->Const.MaxTextureLevels : 0;
1013 case GL_TEXTURE_CUBE_MAP_ARRAY:
1014 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1015 return ctx->Extensions.ARB_texture_cube_map_array
1016 ? ctx->Const.MaxCubeTextureLevels : 0;
1017 case GL_TEXTURE_BUFFER:
1018 return ctx->API == API_OPENGL_CORE &&
1019 ctx->Extensions.ARB_texture_buffer_object ? 1 : 0;
1020 case GL_TEXTURE_2D_MULTISAMPLE:
1021 case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
1022 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
1023 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
1024 return _mesa_is_desktop_gl(ctx)
1025 && ctx->Extensions.ARB_texture_multisample
1027 case GL_TEXTURE_EXTERNAL_OES:
1030 return 0; /* bad target */
1036 * Return number of dimensions per mipmap level for the given texture target.
1039 _mesa_get_texture_dimensions(GLenum target)
1043 case GL_PROXY_TEXTURE_1D:
1046 case GL_TEXTURE_RECTANGLE:
1047 case GL_TEXTURE_CUBE_MAP:
1048 case GL_PROXY_TEXTURE_2D:
1049 case GL_PROXY_TEXTURE_RECTANGLE:
1050 case GL_PROXY_TEXTURE_CUBE_MAP:
1051 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1052 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1053 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1054 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1055 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1056 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1057 case GL_TEXTURE_1D_ARRAY:
1058 case GL_PROXY_TEXTURE_1D_ARRAY:
1059 case GL_TEXTURE_EXTERNAL_OES:
1060 case GL_TEXTURE_2D_MULTISAMPLE:
1061 case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
1064 case GL_PROXY_TEXTURE_3D:
1065 case GL_TEXTURE_2D_ARRAY:
1066 case GL_PROXY_TEXTURE_2D_ARRAY:
1067 case GL_TEXTURE_CUBE_MAP_ARRAY:
1068 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1069 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
1070 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
1072 case GL_TEXTURE_BUFFER:
1075 _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()",
1083 * Return the maximum number of mipmap levels for the given target
1084 * and the dimensions.
1085 * The dimensions are expected not to include the border.
1088 _mesa_get_tex_max_num_levels(GLenum target, GLsizei width, GLsizei height,
1095 case GL_TEXTURE_1D_ARRAY:
1098 case GL_TEXTURE_CUBE_MAP:
1099 case GL_TEXTURE_CUBE_MAP_ARRAY:
1100 ASSERT(width == height);
1104 case GL_TEXTURE_2D_ARRAY:
1105 size = MAX2(width, height);
1108 size = MAX3(width, height, depth);
1110 case GL_TEXTURE_RECTANGLE:
1111 case GL_TEXTURE_EXTERNAL_OES:
1112 case GL_TEXTURE_2D_MULTISAMPLE:
1113 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
1120 return _mesa_logbase2(size) + 1;
1124 #if 000 /* not used anymore */
1126 * glTexImage[123]D can accept a NULL image pointer. In this case we
1127 * create a texture image with unspecified image contents per the OpenGL
1131 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
1133 const GLint components = _mesa_components_in_format(format);
1134 const GLint numPixels = width * height * depth;
1135 GLubyte *data = (GLubyte *) malloc(numPixels * components * sizeof(GLubyte));
1139 * Let's see if anyone finds this. If glTexImage2D() is called with
1140 * a NULL image pointer then load the texture image with something
1141 * interesting instead of leaving it indeterminate.
1144 static const char message[8][32] = {
1145 " X X XXXXX XXX X ",
1146 " XX XX X X X X X ",
1148 " X X XXXX XXX XXXXX ",
1151 " X X XXXXX XXX X X ",
1155 GLubyte *imgPtr = data;
1157 for (h = 0; h < depth; h++) {
1158 for (i = 0; i < height; i++) {
1159 GLint srcRow = 7 - (i % 8);
1160 for (j = 0; j < width; j++) {
1161 GLint srcCol = j % 32;
1162 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
1163 for (k = 0; k < components; k++) {
1179 * Set the size and format-related fields of a gl_texture_image struct
1180 * to zero. This is used when a proxy texture test fails.
1183 clear_teximage_fields(struct gl_texture_image *img)
1186 img->_BaseFormat = 0;
1187 img->InternalFormat = 0;
1196 img->HeightLog2 = 0;
1198 img->TexFormat = MESA_FORMAT_NONE;
1199 img->NumSamples = 0;
1200 img->FixedSampleLocations = GL_TRUE;
1205 * Initialize basic fields of the gl_texture_image struct.
1207 * \param ctx GL context.
1208 * \param img texture image structure to be initialized.
1209 * \param width image width.
1210 * \param height image height.
1211 * \param depth image depth.
1212 * \param border image border.
1213 * \param internalFormat internal format.
1214 * \param format the actual hardware format (one of MESA_FORMAT_*)
1216 * Fills in the fields of \p img with the given information.
1217 * Note: width, height and depth include the border.
1220 _mesa_init_teximage_fields(struct gl_context *ctx,
1221 struct gl_texture_image *img,
1222 GLsizei width, GLsizei height, GLsizei depth,
1223 GLint border, GLenum internalFormat,
1229 ASSERT(height >= 0);
1232 target = img->TexObject->Target;
1233 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
1234 ASSERT(img->_BaseFormat > 0);
1235 img->InternalFormat = internalFormat;
1236 img->Border = border;
1238 img->Height = height;
1241 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
1242 img->WidthLog2 = _mesa_logbase2(img->Width2);
1244 img->NumSamples = 0;
1245 img->FixedSampleLocations = GL_TRUE;
1249 case GL_TEXTURE_BUFFER:
1250 case GL_PROXY_TEXTURE_1D:
1255 img->HeightLog2 = 0;
1262 case GL_TEXTURE_1D_ARRAY:
1263 case GL_PROXY_TEXTURE_1D_ARRAY:
1264 img->Height2 = height; /* no border */
1265 img->HeightLog2 = 0; /* not used */
1273 case GL_TEXTURE_RECTANGLE:
1274 case GL_TEXTURE_CUBE_MAP:
1275 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1276 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1277 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1278 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1279 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1280 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1281 case GL_TEXTURE_EXTERNAL_OES:
1282 case GL_PROXY_TEXTURE_2D:
1283 case GL_PROXY_TEXTURE_RECTANGLE:
1284 case GL_PROXY_TEXTURE_CUBE_MAP:
1285 case GL_TEXTURE_2D_MULTISAMPLE:
1286 case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
1287 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1288 img->HeightLog2 = _mesa_logbase2(img->Height2);
1295 case GL_TEXTURE_2D_ARRAY:
1296 case GL_PROXY_TEXTURE_2D_ARRAY:
1297 case GL_TEXTURE_CUBE_MAP_ARRAY:
1298 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1299 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
1300 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
1301 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1302 img->HeightLog2 = _mesa_logbase2(img->Height2);
1303 img->Depth2 = depth; /* no border */
1304 img->DepthLog2 = 0; /* not used */
1307 case GL_PROXY_TEXTURE_3D:
1308 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1309 img->HeightLog2 = _mesa_logbase2(img->Height2);
1310 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
1311 img->DepthLog2 = _mesa_logbase2(img->Depth2);
1314 _mesa_problem(NULL, "invalid target 0x%x in _mesa_init_teximage_fields()",
1319 _mesa_get_tex_max_num_levels(target,
1320 img->Width2, img->Height2, img->Depth2);
1321 img->TexFormat = format;
1326 * Free and clear fields of the gl_texture_image struct.
1328 * \param ctx GL context.
1329 * \param texImage texture image structure to be cleared.
1331 * After the call, \p texImage will have no data associated with it. Its
1332 * fields are cleared so that its parent object will test incomplete.
1335 _mesa_clear_texture_image(struct gl_context *ctx,
1336 struct gl_texture_image *texImage)
1338 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
1339 clear_teximage_fields(texImage);
1344 * Check the width, height, depth and border of a texture image are legal.
1345 * Used by all the glTexImage, glCompressedTexImage and glCopyTexImage
1347 * The target and level parameters will have already been validated.
1348 * \return GL_TRUE if size is OK, GL_FALSE otherwise.
1351 _mesa_legal_texture_dimensions(struct gl_context *ctx, GLenum target,
1352 GLint level, GLint width, GLint height,
1353 GLint depth, GLint border)
1359 case GL_PROXY_TEXTURE_1D:
1360 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); /* level zero size */
1361 maxSize >>= level; /* level size */
1362 if (width < 2 * border || width > 2 * border + maxSize)
1364 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1365 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1371 case GL_PROXY_TEXTURE_2D:
1372 case GL_TEXTURE_2D_MULTISAMPLE:
1373 case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
1374 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1376 if (width < 2 * border || width > 2 * border + maxSize)
1378 if (height < 2 * border || height > 2 * border + maxSize)
1380 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1381 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1383 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1389 case GL_PROXY_TEXTURE_3D:
1390 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1392 if (width < 2 * border || width > 2 * border + maxSize)
1394 if (height < 2 * border || height > 2 * border + maxSize)
1396 if (depth < 2 * border || depth > 2 * border + maxSize)
1398 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1399 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1401 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1403 if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border))
1408 case GL_TEXTURE_RECTANGLE_NV:
1409 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1412 maxSize = ctx->Const.MaxTextureRectSize;
1413 if (width < 0 || width > maxSize)
1415 if (height < 0 || height > maxSize)
1419 case GL_TEXTURE_CUBE_MAP:
1420 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1421 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1422 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1423 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1424 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1425 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1426 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1427 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1429 if (width < 2 * border || width > 2 * border + maxSize)
1431 if (height < 2 * border || height > 2 * border + maxSize)
1433 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1434 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1436 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1441 case GL_TEXTURE_1D_ARRAY_EXT:
1442 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1443 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1445 if (width < 2 * border || width > 2 * border + maxSize)
1447 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers)
1449 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1450 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1455 case GL_TEXTURE_2D_ARRAY_EXT:
1456 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1457 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
1458 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
1459 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1461 if (width < 2 * border || width > 2 * border + maxSize)
1463 if (height < 2 * border || height > 2 * border + maxSize)
1465 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers)
1467 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1468 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1470 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1475 case GL_TEXTURE_CUBE_MAP_ARRAY:
1476 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1477 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1478 if (width < 2 * border || width > 2 * border + maxSize)
1480 if (height < 2 * border || height > 2 * border + maxSize)
1482 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers)
1484 if (level >= ctx->Const.MaxCubeTextureLevels)
1486 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1487 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1489 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1494 _mesa_problem(ctx, "Invalid target in _mesa_legal_texture_dimensions()");
1501 * Do error checking of xoffset, yoffset, zoffset, width, height and depth
1502 * for glTexSubImage, glCopyTexSubImage and glCompressedTexSubImage.
1503 * \param destImage the destination texture image.
1504 * \return GL_TRUE if error found, GL_FALSE otherwise.
1507 error_check_subtexture_dimensions(struct gl_context *ctx,
1508 const char *function, GLuint dims,
1509 const struct gl_texture_image *destImage,
1510 GLint xoffset, GLint yoffset, GLint zoffset,
1511 GLsizei subWidth, GLsizei subHeight,
1514 const GLenum target = destImage->TexObject->Target;
1519 _mesa_error(ctx, GL_INVALID_VALUE,
1520 "%s%dD(width=%d)", function, dims, subWidth);
1524 if (dims > 1 && subHeight < 0) {
1525 _mesa_error(ctx, GL_INVALID_VALUE,
1526 "%s%dD(height=%d)", function, dims, subHeight);
1530 if (dims > 2 && subDepth < 0) {
1531 _mesa_error(ctx, GL_INVALID_VALUE,
1532 "%s%dD(depth=%d)", function, dims, subDepth);
1536 /* check xoffset and width */
1537 if (xoffset < -destImage->Border) {
1538 _mesa_error(ctx, GL_INVALID_VALUE, "%s%dD(xoffset)",
1543 if (xoffset + subWidth > destImage->Width) {
1544 _mesa_error(ctx, GL_INVALID_VALUE, "%s%dD(xoffset+width)",
1549 /* check yoffset and height */
1551 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : destImage->Border;
1552 if (yoffset < -yBorder) {
1553 _mesa_error(ctx, GL_INVALID_VALUE, "%s%dD(yoffset)",
1557 if (yoffset + subHeight > destImage->Height) {
1558 _mesa_error(ctx, GL_INVALID_VALUE, "%s%dD(yoffset+height)",
1564 /* check zoffset and depth */
1566 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : destImage->Border;
1567 if (zoffset < -zBorder) {
1568 _mesa_error(ctx, GL_INVALID_VALUE, "%s3D(zoffset)", function);
1571 if (zoffset + subDepth > (GLint) destImage->Depth) {
1572 _mesa_error(ctx, GL_INVALID_VALUE, "%s3D(zoffset+depth)", function);
1578 * The OpenGL spec (and GL_ARB_texture_compression) says only whole
1579 * compressed texture images can be updated. But, that restriction may be
1580 * relaxed for particular compressed formats. At this time, all the
1581 * compressed formats supported by Mesa allow sub-textures to be updated
1582 * along compressed block boundaries.
1584 _mesa_get_format_block_size(destImage->TexFormat, &bw, &bh);
1586 if (bw != 1 || bh != 1) {
1587 /* offset must be multiple of block size */
1588 if ((xoffset % bw != 0) || (yoffset % bh != 0)) {
1589 _mesa_error(ctx, GL_INVALID_OPERATION,
1590 "%s%dD(xoffset = %d, yoffset = %d)",
1591 function, dims, xoffset, yoffset);
1595 /* size must be multiple of bw by bh or equal to whole texture size */
1596 if ((subWidth % bw != 0) && subWidth != destImage->Width) {
1597 _mesa_error(ctx, GL_INVALID_OPERATION,
1598 "%s%dD(width = %d)", function, dims, subWidth);
1602 if ((subHeight % bh != 0) && subHeight != destImage->Height) {
1603 _mesa_error(ctx, GL_INVALID_OPERATION,
1604 "%s%dD(height = %d)", function, dims, subHeight);
1616 * This is the fallback for Driver.TestProxyTexImage() for doing device-
1617 * specific texture image size checks.
1619 * A hardware driver might override this function if, for example, the
1620 * max 3D texture size is 512x512x64 (i.e. not a cube).
1622 * Note that width, height, depth == 0 is not an error. However, a
1623 * texture with zero width/height/depth will be considered "incomplete"
1624 * and texturing will effectively be disabled.
1626 * \param target any texture target/type
1627 * \param level as passed to glTexImage
1628 * \param format the MESA_FORMAT_x for the tex image
1629 * \param width as passed to glTexImage
1630 * \param height as passed to glTexImage
1631 * \param depth as passed to glTexImage
1632 * \param border as passed to glTexImage
1633 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1636 _mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
1638 GLint width, GLint height, GLint depth, GLint border)
1640 /* We just check if the image size is less than MaxTextureMbytes.
1641 * Some drivers may do more specific checks.
1643 uint64_t bytes = _mesa_format_image_size64(format, width, height, depth);
1644 uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */
1645 mbytes *= _mesa_num_tex_faces(target);
1646 return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes;
1651 * Return true if the format is only valid for glCompressedTexImage.
1654 compressedteximage_only_format(const struct gl_context *ctx, GLenum format)
1657 case GL_ETC1_RGB8_OES:
1658 case GL_PALETTE4_RGB8_OES:
1659 case GL_PALETTE4_RGBA8_OES:
1660 case GL_PALETTE4_R5_G6_B5_OES:
1661 case GL_PALETTE4_RGBA4_OES:
1662 case GL_PALETTE4_RGB5_A1_OES:
1663 case GL_PALETTE8_RGB8_OES:
1664 case GL_PALETTE8_RGBA8_OES:
1665 case GL_PALETTE8_R5_G6_B5_OES:
1666 case GL_PALETTE8_RGBA4_OES:
1667 case GL_PALETTE8_RGB5_A1_OES:
1676 * Helper function to determine whether a target and specific compression
1677 * format are supported.
1680 target_can_be_compressed(const struct gl_context *ctx, GLenum target,
1683 (void) intFormat; /* not used yet */
1687 case GL_PROXY_TEXTURE_2D:
1688 return GL_TRUE; /* true for any compressed format so far */
1689 case GL_PROXY_TEXTURE_CUBE_MAP:
1690 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1691 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1692 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1693 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1694 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1695 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1696 return ctx->Extensions.ARB_texture_cube_map;
1697 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1698 case GL_TEXTURE_2D_ARRAY_EXT:
1699 return (ctx->Extensions.MESA_texture_array ||
1700 ctx->Extensions.EXT_texture_array);
1701 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1702 case GL_TEXTURE_CUBE_MAP_ARRAY:
1703 return ctx->Extensions.ARB_texture_cube_map_array;
1711 * Check if the given texture target value is legal for a
1712 * glTexImage1/2/3D call.
1715 legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target)
1721 case GL_PROXY_TEXTURE_1D:
1722 return _mesa_is_desktop_gl(ctx);
1730 case GL_PROXY_TEXTURE_2D:
1731 return _mesa_is_desktop_gl(ctx);
1732 case GL_PROXY_TEXTURE_CUBE_MAP:
1733 return _mesa_is_desktop_gl(ctx)
1734 && ctx->Extensions.ARB_texture_cube_map;
1735 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1736 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1737 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1738 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1739 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1740 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1741 return ctx->Extensions.ARB_texture_cube_map;
1742 case GL_TEXTURE_RECTANGLE_NV:
1743 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1744 return _mesa_is_desktop_gl(ctx)
1745 && ctx->Extensions.NV_texture_rectangle;
1746 case GL_TEXTURE_1D_ARRAY_EXT:
1747 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1748 return _mesa_is_desktop_gl(ctx)
1749 && (ctx->Extensions.MESA_texture_array ||
1750 ctx->Extensions.EXT_texture_array);
1758 case GL_PROXY_TEXTURE_3D:
1759 return _mesa_is_desktop_gl(ctx);
1760 case GL_TEXTURE_2D_ARRAY_EXT:
1761 return (_mesa_is_desktop_gl(ctx)
1762 && (ctx->Extensions.MESA_texture_array ||
1763 ctx->Extensions.EXT_texture_array))
1764 || _mesa_is_gles3(ctx);
1765 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1766 return _mesa_is_desktop_gl(ctx)
1767 && (ctx->Extensions.MESA_texture_array ||
1768 ctx->Extensions.EXT_texture_array);
1769 case GL_TEXTURE_CUBE_MAP_ARRAY:
1770 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1771 return ctx->Extensions.ARB_texture_cube_map_array;
1776 _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims);
1783 * Check if the given texture target value is legal for a
1784 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1785 * The difference compared to legal_teximage_target() above is that
1786 * proxy targets are not supported.
1789 legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target)
1793 return _mesa_is_desktop_gl(ctx) && target == GL_TEXTURE_1D;
1798 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1799 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1800 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1801 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1802 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1803 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1804 return ctx->Extensions.ARB_texture_cube_map;
1805 case GL_TEXTURE_RECTANGLE_NV:
1806 return _mesa_is_desktop_gl(ctx)
1807 && ctx->Extensions.NV_texture_rectangle;
1808 case GL_TEXTURE_1D_ARRAY_EXT:
1809 return _mesa_is_desktop_gl(ctx)
1810 && (ctx->Extensions.MESA_texture_array ||
1811 ctx->Extensions.EXT_texture_array);
1819 case GL_TEXTURE_2D_ARRAY_EXT:
1820 return (_mesa_is_desktop_gl(ctx)
1821 && (ctx->Extensions.MESA_texture_array ||
1822 ctx->Extensions.EXT_texture_array))
1823 || _mesa_is_gles3(ctx);
1824 case GL_TEXTURE_CUBE_MAP_ARRAY:
1825 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1826 return ctx->Extensions.ARB_texture_cube_map_array;
1831 _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()",
1839 * Helper function to determine if a texture object is mutable (in terms
1840 * of GL_ARB_texture_storage).
1843 mutable_tex_object(struct gl_context *ctx, GLenum target)
1845 if (ctx->Extensions.ARB_texture_storage) {
1846 struct gl_texture_object *texObj =
1847 _mesa_get_current_tex_object(ctx, target);
1848 return !texObj->Immutable;
1855 * Return expected size of a compressed texture.
1858 compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth,
1861 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
1862 return _mesa_format_image_size(mesaFormat, width, height, depth);
1867 * Test the glTexImage[123]D() parameters for errors.
1869 * \param ctx GL context.
1870 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1871 * \param target texture target given by the user (already validated).
1872 * \param level image level given by the user.
1873 * \param internalFormat internal format given by the user.
1874 * \param format pixel data format given by the user.
1875 * \param type pixel data type given by the user.
1876 * \param width image width given by the user.
1877 * \param height image height given by the user.
1878 * \param depth image depth given by the user.
1879 * \param border image border given by the user.
1881 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1883 * Verifies each of the parameters against the constants specified in
1884 * __struct gl_contextRec::Const and the supported extensions, and according
1885 * to the OpenGL specification.
1886 * Note that we don't fully error-check the width, height, depth values
1887 * here. That's done in _mesa_legal_texture_dimensions() which is used
1888 * by several other GL entrypoints. Plus, texture dims have a special
1889 * interaction with proxy textures.
1892 texture_error_check( struct gl_context *ctx,
1893 GLuint dimensions, GLenum target,
1894 GLint level, GLint internalFormat,
1895 GLenum format, GLenum type,
1896 GLint width, GLint height,
1897 GLint depth, GLint border )
1899 GLboolean colorFormat;
1902 /* Even though there are no color-index textures, we still have to support
1903 * uploading color-index data and remapping it to RGB via the
1904 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1906 const GLboolean indexFormat = (format == GL_COLOR_INDEX);
1908 /* Note: for proxy textures, some error conditions immediately generate
1909 * a GL error in the usual way. But others do not generate a GL error.
1910 * Instead, they cause the width, height, depth, format fields of the
1911 * texture image to be zeroed-out. The GL spec seems to indicate that the
1912 * zero-out behaviour is only used in cases related to memory allocation.
1916 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
1917 _mesa_error(ctx, GL_INVALID_VALUE,
1918 "glTexImage%dD(level=%d)", dimensions, level);
1923 if (border < 0 || border > 1 ||
1924 ((ctx->API != API_OPENGL_COMPAT ||
1925 target == GL_TEXTURE_RECTANGLE_NV ||
1926 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1927 _mesa_error(ctx, GL_INVALID_VALUE,
1928 "glTexImage%dD(border=%d)", dimensions, border);
1932 if (width < 0 || height < 0 || depth < 0) {
1933 _mesa_error(ctx, GL_INVALID_VALUE,
1934 "glTexImage%dD(width, height or depth < 0)", dimensions);
1938 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1939 * combinations of format, internalFormat, and type that can be used.
1940 * Formats and types that require additional extensions (e.g., GL_FLOAT
1941 * requires GL_OES_texture_float) are filtered elsewhere.
1944 if (_mesa_is_gles(ctx)) {
1945 if (_mesa_is_gles3(ctx)) {
1946 err = _mesa_es3_error_check_format_and_type(format, type,
1949 if (format != internalFormat) {
1950 _mesa_error(ctx, GL_INVALID_OPERATION,
1951 "glTexImage%dD(format = %s, internalFormat = %s)",
1953 _mesa_lookup_enum_by_nr(format),
1954 _mesa_lookup_enum_by_nr(internalFormat));
1958 err = _mesa_es_error_check_format_and_type(format, type, dimensions);
1960 if (err != GL_NO_ERROR) {
1961 _mesa_error(ctx, err,
1962 "glTexImage%dD(format = %s, type = %s, internalFormat = %s)",
1964 _mesa_lookup_enum_by_nr(format),
1965 _mesa_lookup_enum_by_nr(type),
1966 _mesa_lookup_enum_by_nr(internalFormat));
1971 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
1972 _mesa_is_cube_face(target)) && width != height) {
1973 _mesa_error(ctx, GL_INVALID_VALUE,
1974 "glTexImage2D(cube width != height)");
1978 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY ||
1979 target == GL_TEXTURE_CUBE_MAP_ARRAY) && width != height) {
1980 _mesa_error(ctx, GL_INVALID_VALUE,
1981 "glTexImage3D(cube array width != height)");
1985 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY ||
1986 target == GL_TEXTURE_CUBE_MAP_ARRAY) && (depth % 6)) {
1987 _mesa_error(ctx, GL_INVALID_VALUE,
1988 "glTexImage3D(cube array depth not multiple of 6)");
1992 /* Check internalFormat */
1993 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1994 _mesa_error(ctx, GL_INVALID_VALUE,
1995 "glTexImage%dD(internalFormat=%s)",
1996 dimensions, _mesa_lookup_enum_by_nr(internalFormat));
2000 /* Check incoming image format and type */
2001 err = _mesa_error_check_format_and_type(ctx, format, type);
2002 if (err != GL_NO_ERROR) {
2003 _mesa_error(ctx, err,
2004 "glTexImage%dD(incompatible format = %s, type = %s)",
2005 dimensions, _mesa_lookup_enum_by_nr(format),
2006 _mesa_lookup_enum_by_nr(type));
2010 /* make sure internal format and format basically agree */
2011 colorFormat = _mesa_is_color_format(format);
2012 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
2013 (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) ||
2014 (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) ||
2015 (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) ||
2016 (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) {
2017 _mesa_error(ctx, GL_INVALID_OPERATION,
2018 "glTexImage%dD(incompatible internalFormat = %s, format = %s)",
2019 dimensions, _mesa_lookup_enum_by_nr(internalFormat),
2020 _mesa_lookup_enum_by_nr(format));
2024 /* additional checks for ycbcr textures */
2025 if (internalFormat == GL_YCBCR_MESA) {
2026 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
2027 if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
2028 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
2030 _mesa_snprintf(message, sizeof(message),
2031 "glTexImage%dD(format/type YCBCR mismatch)",
2033 _mesa_error(ctx, GL_INVALID_ENUM, "%s", message);
2034 return GL_TRUE; /* error */
2036 if (target != GL_TEXTURE_2D &&
2037 target != GL_PROXY_TEXTURE_2D &&
2038 target != GL_TEXTURE_RECTANGLE_NV &&
2039 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
2040 _mesa_error(ctx, GL_INVALID_ENUM,
2041 "glTexImage%dD(bad target for YCbCr texture)",
2047 _mesa_snprintf(message, sizeof(message),
2048 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
2049 dimensions, border);
2050 _mesa_error(ctx, GL_INVALID_VALUE, "%s", message);
2055 /* additional checks for depth textures */
2056 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT
2057 || _mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_STENCIL) {
2058 /* Only 1D, 2D, rect, array and cube textures supported, not 3D
2059 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */
2060 if (target != GL_TEXTURE_1D &&
2061 target != GL_PROXY_TEXTURE_1D &&
2062 target != GL_TEXTURE_2D &&
2063 target != GL_PROXY_TEXTURE_2D &&
2064 target != GL_TEXTURE_1D_ARRAY &&
2065 target != GL_PROXY_TEXTURE_1D_ARRAY &&
2066 target != GL_TEXTURE_2D_ARRAY &&
2067 target != GL_PROXY_TEXTURE_2D_ARRAY &&
2068 target != GL_TEXTURE_RECTANGLE_ARB &&
2069 target != GL_PROXY_TEXTURE_RECTANGLE_ARB &&
2070 !((_mesa_is_cube_face(target) || target == GL_PROXY_TEXTURE_CUBE_MAP) &&
2071 (ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4
2072 || (ctx->API == API_OPENGLES2 && ctx->Extensions.OES_depth_texture_cube_map))) &&
2073 !((target == GL_TEXTURE_CUBE_MAP_ARRAY ||
2074 target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY) &&
2075 ctx->Extensions.ARB_texture_cube_map_array)) {
2076 _mesa_error(ctx, GL_INVALID_ENUM,
2077 "glTexImage%dD(bad target for depth texture)",
2083 /* additional checks for compressed textures */
2084 if (_mesa_is_compressed_format(ctx, internalFormat)) {
2085 if (!target_can_be_compressed(ctx, target, internalFormat)) {
2086 _mesa_error(ctx, GL_INVALID_ENUM,
2087 "glTexImage%dD(target can't be compressed)", dimensions);
2090 if (compressedteximage_only_format(ctx, internalFormat)) {
2091 _mesa_error(ctx, GL_INVALID_OPERATION,
2092 "glTexImage%dD(no compression for format)", dimensions);
2096 _mesa_error(ctx, GL_INVALID_OPERATION,
2097 "glTexImage%dD(border!=0)", dimensions);
2102 /* additional checks for integer textures */
2103 if ((ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) &&
2104 (_mesa_is_enum_format_integer(format) !=
2105 _mesa_is_enum_format_integer(internalFormat))) {
2106 _mesa_error(ctx, GL_INVALID_OPERATION,
2107 "glTexImage%dD(integer/non-integer format mismatch)",
2112 if (!mutable_tex_object(ctx, target)) {
2113 _mesa_error(ctx, GL_INVALID_OPERATION,
2114 "glTexImage%dD(immutable texture)", dimensions);
2118 /* if we get here, the parameters are OK */
2124 * Error checking for glCompressedTexImage[123]D().
2125 * Note that the width, height and depth values are not fully error checked
2127 * \return GL_TRUE if a error is found, GL_FALSE otherwise
2130 compressed_texture_error_check(struct gl_context *ctx, GLint dimensions,
2131 GLenum target, GLint level,
2132 GLenum internalFormat, GLsizei width,
2133 GLsizei height, GLsizei depth, GLint border,
2136 const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
2138 GLenum error = GL_NO_ERROR;
2139 char *reason = ""; /* no error */
2141 if (!target_can_be_compressed(ctx, target, internalFormat)) {
2143 error = GL_INVALID_ENUM;
2147 /* This will detect any invalid internalFormat value */
2148 if (!_mesa_is_compressed_format(ctx, internalFormat)) {
2149 reason = "internalFormat";
2150 error = GL_INVALID_ENUM;
2154 switch (internalFormat) {
2155 case GL_PALETTE4_RGB8_OES:
2156 case GL_PALETTE4_RGBA8_OES:
2157 case GL_PALETTE4_R5_G6_B5_OES:
2158 case GL_PALETTE4_RGBA4_OES:
2159 case GL_PALETTE4_RGB5_A1_OES:
2160 case GL_PALETTE8_RGB8_OES:
2161 case GL_PALETTE8_RGBA8_OES:
2162 case GL_PALETTE8_R5_G6_B5_OES:
2163 case GL_PALETTE8_RGBA4_OES:
2164 case GL_PALETTE8_RGB5_A1_OES:
2165 /* check level (note that level should be zero or less!) */
2166 if (level > 0 || level < -maxLevels) {
2168 error = GL_INVALID_VALUE;
2172 if (dimensions != 2) {
2173 reason = "compressed paletted textures must be 2D";
2174 error = GL_INVALID_OPERATION;
2178 /* Figure out the expected texture size (in bytes). This will be
2179 * checked against the actual size later.
2181 expectedSize = _mesa_cpal_compressed_size(level, internalFormat,
2184 /* This is for the benefit of the TestProxyTexImage below. It expects
2185 * level to be non-negative. OES_compressed_paletted_texture uses a
2186 * weird mechanism where the level specified to glCompressedTexImage2D
2187 * is -(n-1) number of levels in the texture, and the data specifies the
2188 * complete mipmap stack. This is done to ensure the palette is the
2189 * same for all levels.
2196 if (level < 0 || level >= maxLevels) {
2198 error = GL_INVALID_VALUE;
2202 /* Figure out the expected texture size (in bytes). This will be
2203 * checked against the actual size later.
2205 expectedSize = compressed_tex_size(width, height, depth, internalFormat);
2209 /* This should really never fail */
2210 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
2211 reason = "internalFormat";
2212 error = GL_INVALID_ENUM;
2216 /* No compressed formats support borders at this time */
2218 reason = "border != 0";
2219 error = GL_INVALID_VALUE;
2223 /* For cube map, width must equal height */
2224 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
2225 _mesa_is_cube_face(target)) && width != height) {
2226 reason = "width != height";
2227 error = GL_INVALID_VALUE;
2231 /* check image size in bytes */
2232 if (expectedSize != imageSize) {
2233 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
2234 * if <imageSize> is not consistent with the format, dimensions, and
2235 * contents of the specified image.
2237 reason = "imageSize inconsistant with width/height/format";
2238 error = GL_INVALID_VALUE;
2242 if (!mutable_tex_object(ctx, target)) {
2243 reason = "immutable texture";
2244 error = GL_INVALID_OPERATION;
2251 _mesa_error(ctx, error, "glCompressedTexImage%dD(%s)", dimensions, reason);
2258 * Test glTexSubImage[123]D() parameters for errors.
2260 * \param ctx GL context.
2261 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2262 * \param target texture target given by the user (already validated)
2263 * \param level image level given by the user.
2264 * \param xoffset sub-image x offset given by the user.
2265 * \param yoffset sub-image y offset given by the user.
2266 * \param zoffset sub-image z offset given by the user.
2267 * \param format pixel data format given by the user.
2268 * \param type pixel data type given by the user.
2269 * \param width image width given by the user.
2270 * \param height image height given by the user.
2271 * \param depth image depth given by the user.
2273 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2275 * Verifies each of the parameters against the constants specified in
2276 * __struct gl_contextRec::Const and the supported extensions, and according
2277 * to the OpenGL specification.
2280 texsubimage_error_check(struct gl_context *ctx, GLuint dimensions,
2281 GLenum target, GLint level,
2282 GLint xoffset, GLint yoffset, GLint zoffset,
2283 GLint width, GLint height, GLint depth,
2284 GLenum format, GLenum type)
2286 struct gl_texture_object *texObj;
2287 struct gl_texture_image *texImage;
2290 /* check target (proxies not allowed) */
2291 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2292 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)",
2293 dimensions, _mesa_lookup_enum_by_nr(target));
2298 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
2299 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(level=%d)",
2304 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2305 * combinations of format and type that can be used. Formats and types
2306 * that require additional extensions (e.g., GL_FLOAT requires
2307 * GL_OES_texture_float) are filtered elsewhere.
2309 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) {
2310 err = _mesa_es_error_check_format_and_type(format, type, dimensions);
2311 if (err != GL_NO_ERROR) {
2312 _mesa_error(ctx, err,
2313 "glTexSubImage%dD(format = %s, type = %s)",
2315 _mesa_lookup_enum_by_nr(format),
2316 _mesa_lookup_enum_by_nr(type));
2321 err = _mesa_error_check_format_and_type(ctx, format, type);
2322 if (err != GL_NO_ERROR) {
2323 _mesa_error(ctx, err,
2324 "glTexSubImage%dD(incompatible format = %s, type = %s)",
2325 dimensions, _mesa_lookup_enum_by_nr(format),
2326 _mesa_lookup_enum_by_nr(type));
2330 /* Get dest texture object / image pointers */
2331 texObj = _mesa_get_current_tex_object(ctx, target);
2333 /* must be out of memory */
2334 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage%dD()", dimensions);
2338 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2340 /* non-existant texture level */
2341 _mesa_error(ctx, GL_INVALID_OPERATION,
2342 "glTexSubImage%dD(invalid texture image)", dimensions);
2346 if (error_check_subtexture_dimensions(ctx, "glTexSubImage", dimensions,
2347 texImage, xoffset, yoffset, 0,
2348 width, height, 1)) {
2352 if (_mesa_is_format_compressed(texImage->TexFormat)) {
2353 if (compressedteximage_only_format(ctx, texImage->InternalFormat)) {
2354 _mesa_error(ctx, GL_INVALID_OPERATION,
2355 "glTexSubImage%dD(no compression for format)", dimensions);
2360 if (ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) {
2361 /* both source and dest must be integer-valued, or neither */
2362 if (_mesa_is_format_integer_color(texImage->TexFormat) !=
2363 _mesa_is_enum_format_integer(format)) {
2364 _mesa_error(ctx, GL_INVALID_OPERATION,
2365 "glTexSubImage%dD(integer/non-integer format mismatch)",
2376 * Test glCopyTexImage[12]D() parameters for errors.
2378 * \param ctx GL context.
2379 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2380 * \param target texture target given by the user.
2381 * \param level image level given by the user.
2382 * \param internalFormat internal format given by the user.
2383 * \param width image width given by the user.
2384 * \param height image height given by the user.
2385 * \param border texture border.
2387 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2389 * Verifies each of the parameters against the constants specified in
2390 * __struct gl_contextRec::Const and the supported extensions, and according
2391 * to the OpenGL specification.
2394 copytexture_error_check( struct gl_context *ctx, GLuint dimensions,
2395 GLenum target, GLint level, GLint internalFormat,
2396 GLint width, GLint height, GLint border )
2399 GLint rb_base_format;
2400 struct gl_renderbuffer *rb;
2401 GLenum rb_internal_format;
2404 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2405 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)",
2406 dimensions, _mesa_lookup_enum_by_nr(target));
2411 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
2412 _mesa_error(ctx, GL_INVALID_VALUE,
2413 "glCopyTexImage%dD(level=%d)", dimensions, level);
2417 /* Check that the source buffer is complete */
2418 if (_mesa_is_user_fbo(ctx->ReadBuffer)) {
2419 if (ctx->ReadBuffer->_Status == 0) {
2420 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2422 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2423 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2424 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2428 if (ctx->ReadBuffer->Visual.samples > 0) {
2429 _mesa_error(ctx, GL_INVALID_OPERATION,
2430 "glCopyTexImage%dD(multisample FBO)",
2437 if (border < 0 || border > 1 ||
2438 ((ctx->API != API_OPENGL_COMPAT ||
2439 target == GL_TEXTURE_RECTANGLE_NV ||
2440 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
2441 _mesa_error(ctx, GL_INVALID_VALUE,
2442 "glCopyTexImage%dD(border=%d)", dimensions, border);
2446 rb = _mesa_get_read_renderbuffer_for_format(ctx, internalFormat);
2448 _mesa_error(ctx, GL_INVALID_OPERATION,
2449 "glCopyTexImage%dD(read buffer)", dimensions);
2453 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2456 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) {
2457 switch (internalFormat) {
2462 case GL_LUMINANCE_ALPHA:
2465 _mesa_error(ctx, GL_INVALID_VALUE,
2466 "glCopyTexImage%dD(internalFormat)", dimensions);
2471 baseFormat = _mesa_base_tex_format(ctx, internalFormat);
2472 if (baseFormat < 0) {
2473 _mesa_error(ctx, GL_INVALID_OPERATION,
2474 "glCopyTexImage%dD(internalFormat)", dimensions);
2478 rb_internal_format = rb->InternalFormat;
2479 rb_base_format = _mesa_base_tex_format(ctx, rb->InternalFormat);
2480 if (_mesa_is_color_format(internalFormat)) {
2481 if (rb_base_format < 0) {
2482 _mesa_error(ctx, GL_INVALID_VALUE,
2483 "glCopyTexImage%dD(internalFormat)", dimensions);
2488 if (_mesa_is_gles(ctx)) {
2490 if (_mesa_base_format_component_count(baseFormat) >
2491 _mesa_base_format_component_count(rb_base_format)) {
2494 if (baseFormat == GL_DEPTH_COMPONENT ||
2495 baseFormat == GL_DEPTH_STENCIL ||
2496 rb_base_format == GL_DEPTH_COMPONENT ||
2497 rb_base_format == GL_DEPTH_STENCIL ||
2498 ((baseFormat == GL_LUMINANCE_ALPHA ||
2499 baseFormat == GL_ALPHA) &&
2500 rb_base_format != GL_RGBA) ||
2501 internalFormat == GL_RGB9_E5) {
2504 if (internalFormat == GL_RGB9_E5) {
2508 _mesa_error(ctx, GL_INVALID_OPERATION,
2509 "glCopyTexImage%dD(internalFormat)", dimensions);
2514 if (_mesa_is_gles3(ctx)) {
2515 bool rb_is_srgb = false;
2516 bool dst_is_srgb = false;
2518 if (ctx->Extensions.EXT_framebuffer_sRGB &&
2519 _mesa_get_format_color_encoding(rb->Format) == GL_SRGB) {
2523 if (_mesa_get_linear_internalformat(internalFormat) != internalFormat) {
2527 if (rb_is_srgb != dst_is_srgb) {
2528 /* Page 137 (page 149 of the PDF) in section 3.8.5 of the
2529 * OpenGLES 3.0.0 spec says:
2531 * "The error INVALID_OPERATION is also generated if the
2532 * value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING for the
2533 * framebuffer attachment corresponding to the read buffer
2534 * is LINEAR (see section 6.1.13) and internalformat is
2535 * one of the sRGB formats described in section 3.8.16, or
2536 * if the value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING is
2537 * SRGB and internalformat is not one of the sRGB formats."
2539 _mesa_error(ctx, GL_INVALID_OPERATION,
2540 "glCopyTexImage%dD(srgb usage mismatch)", dimensions);
2545 if (!_mesa_source_buffer_exists(ctx, baseFormat)) {
2546 _mesa_error(ctx, GL_INVALID_OPERATION,
2547 "glCopyTexImage%dD(missing readbuffer)", dimensions);
2551 /* From the EXT_texture_integer spec:
2553 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2554 * if the texture internalformat is an integer format and the read color
2555 * buffer is not an integer format, or if the internalformat is not an
2556 * integer format and the read color buffer is an integer format."
2558 if (_mesa_is_color_format(internalFormat)) {
2559 bool is_int = _mesa_is_enum_format_integer(internalFormat);
2560 bool is_rbint = _mesa_is_enum_format_integer(rb_internal_format);
2561 if (is_int || is_rbint) {
2562 if (is_int != is_rbint) {
2563 _mesa_error(ctx, GL_INVALID_OPERATION,
2564 "glCopyTexImage%dD(integer vs non-integer)", dimensions);
2566 } else if (_mesa_is_gles(ctx) &&
2567 _mesa_is_enum_format_unsigned_int(internalFormat) !=
2568 _mesa_is_enum_format_unsigned_int(rb_internal_format)) {
2569 _mesa_error(ctx, GL_INVALID_OPERATION,
2570 "glCopyTexImage%dD(signed vs unsigned integer)", dimensions);
2576 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
2577 _mesa_is_cube_face(target)) && width != height) {
2578 _mesa_error(ctx, GL_INVALID_VALUE,
2579 "glTexImage2D(cube width != height)");
2583 if (_mesa_is_compressed_format(ctx, internalFormat)) {
2584 if (!target_can_be_compressed(ctx, target, internalFormat)) {
2585 _mesa_error(ctx, GL_INVALID_ENUM,
2586 "glCopyTexImage%dD(target)", dimensions);
2589 if (compressedteximage_only_format(ctx, internalFormat)) {
2590 _mesa_error(ctx, GL_INVALID_OPERATION,
2591 "glCopyTexImage%dD(no compression for format)", dimensions);
2595 _mesa_error(ctx, GL_INVALID_OPERATION,
2596 "glCopyTexImage%dD(border!=0)", dimensions);
2601 if (!mutable_tex_object(ctx, target)) {
2602 _mesa_error(ctx, GL_INVALID_OPERATION,
2603 "glCopyTexImage%dD(immutable texture)", dimensions);
2607 /* if we get here, the parameters are OK */
2613 * Test glCopyTexSubImage[12]D() parameters for errors.
2614 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2617 copytexsubimage_error_check(struct gl_context *ctx, GLuint dimensions,
2618 GLenum target, GLint level,
2619 GLint xoffset, GLint yoffset, GLint zoffset,
2620 GLint width, GLint height)
2622 struct gl_texture_object *texObj;
2623 struct gl_texture_image *texImage;
2625 /* Check that the source buffer is complete */
2626 if (_mesa_is_user_fbo(ctx->ReadBuffer)) {
2627 if (ctx->ReadBuffer->_Status == 0) {
2628 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2630 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2631 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2632 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2636 if (ctx->ReadBuffer->Visual.samples > 0) {
2637 _mesa_error(ctx, GL_INVALID_OPERATION,
2638 "glCopyTexSubImage%dD(multisample FBO)",
2644 /* check target (proxies not allowed) */
2645 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2646 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)",
2647 dimensions, _mesa_lookup_enum_by_nr(target));
2652 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
2653 _mesa_error(ctx, GL_INVALID_VALUE,
2654 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
2658 /* Get dest texture object / image pointers */
2659 texObj = _mesa_get_current_tex_object(ctx, target);
2661 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage%dD()", dimensions);
2665 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2667 /* destination image does not exist */
2668 _mesa_error(ctx, GL_INVALID_OPERATION,
2669 "glCopyTexSubImage%dD(invalid texture image)", dimensions);
2673 if (error_check_subtexture_dimensions(ctx, "glCopyTexSubImage",
2674 dimensions, texImage,
2675 xoffset, yoffset, zoffset,
2676 width, height, 1)) {
2680 if (_mesa_is_format_compressed(texImage->TexFormat)) {
2681 if (compressedteximage_only_format(ctx, texImage->InternalFormat)) {
2682 _mesa_error(ctx, GL_INVALID_OPERATION,
2683 "glCopyTexSubImage%dD(no compression for format)", dimensions);
2688 if (texImage->InternalFormat == GL_YCBCR_MESA) {
2689 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
2693 if (!_mesa_source_buffer_exists(ctx, texImage->_BaseFormat)) {
2694 _mesa_error(ctx, GL_INVALID_OPERATION,
2695 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2696 dimensions, texImage->_BaseFormat);
2700 /* From the EXT_texture_integer spec:
2702 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2703 * if the texture internalformat is an integer format and the read color
2704 * buffer is not an integer format, or if the internalformat is not an
2705 * integer format and the read color buffer is an integer format."
2707 if (_mesa_is_color_format(texImage->InternalFormat)) {
2708 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
2710 if (_mesa_is_format_integer_color(rb->Format) !=
2711 _mesa_is_format_integer_color(texImage->TexFormat)) {
2712 _mesa_error(ctx, GL_INVALID_OPERATION,
2713 "glCopyTexImage%dD(integer vs non-integer)", dimensions);
2718 /* if we get here, the parameters are OK */
2723 /** Callback info for walking over FBO hash table */
2726 struct gl_context *ctx;
2727 struct gl_texture_object *texObj;
2733 * Check render to texture callback. Called from _mesa_HashWalk().
2736 check_rtt_cb(GLuint key, void *data, void *userData)
2738 struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
2739 const struct cb_info *info = (struct cb_info *) userData;
2740 struct gl_context *ctx = info->ctx;
2741 const struct gl_texture_object *texObj = info->texObj;
2742 const GLuint level = info->level, face = info->face;
2744 /* If this is a user-created FBO */
2745 if (_mesa_is_user_fbo(fb)) {
2747 /* check if any of the FBO's attachments point to 'texObj' */
2748 for (i = 0; i < BUFFER_COUNT; i++) {
2749 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
2750 if (att->Type == GL_TEXTURE &&
2751 att->Texture == texObj &&
2752 att->TextureLevel == level &&
2753 att->CubeMapFace == face) {
2754 ASSERT(_mesa_get_attachment_teximage(att));
2755 /* Tell driver about the new renderbuffer texture */
2756 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
2757 /* Mark fb status as indeterminate to force re-validation */
2766 * When a texture image is specified we have to check if it's bound to
2767 * any framebuffer objects (render to texture) in order to detect changes
2768 * in size or format since that effects FBO completeness.
2769 * Any FBOs rendering into the texture must be re-validated.
2772 _mesa_update_fbo_texture(struct gl_context *ctx,
2773 struct gl_texture_object *texObj,
2774 GLuint face, GLuint level)
2776 /* Only check this texture if it's been marked as RenderToTexture */
2777 if (texObj->_RenderToTexture) {
2778 struct cb_info info;
2780 info.texObj = texObj;
2783 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info);
2789 * If the texture object's GenerateMipmap flag is set and we've
2790 * changed the texture base level image, regenerate the rest of the
2791 * mipmap levels now.
2794 check_gen_mipmap(struct gl_context *ctx, GLenum target,
2795 struct gl_texture_object *texObj, GLint level)
2797 ASSERT(target != GL_TEXTURE_CUBE_MAP);
2798 if (texObj->GenerateMipmap &&
2799 level == texObj->BaseLevel &&
2800 level < texObj->MaxLevel) {
2801 ASSERT(ctx->Driver.GenerateMipmap);
2802 ctx->Driver.GenerateMipmap(ctx, target, texObj);
2807 /** Debug helper: override the user-requested internal format */
2809 override_internal_format(GLenum internalFormat, GLint width, GLint height)
2812 if (internalFormat == GL_RGBA16F_ARB ||
2813 internalFormat == GL_RGBA32F_ARB) {
2814 printf("Convert rgba float tex to int %d x %d\n", width, height);
2817 else if (internalFormat == GL_RGB16F_ARB ||
2818 internalFormat == GL_RGB32F_ARB) {
2819 printf("Convert rgb float tex to int %d x %d\n", width, height);
2822 else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB ||
2823 internalFormat == GL_LUMINANCE_ALPHA32F_ARB) {
2824 printf("Convert luminance float tex to int %d x %d\n", width, height);
2825 return GL_LUMINANCE_ALPHA;
2827 else if (internalFormat == GL_LUMINANCE16F_ARB ||
2828 internalFormat == GL_LUMINANCE32F_ARB) {
2829 printf("Convert luminance float tex to int %d x %d\n", width, height);
2830 return GL_LUMINANCE;
2832 else if (internalFormat == GL_ALPHA16F_ARB ||
2833 internalFormat == GL_ALPHA32F_ARB) {
2834 printf("Convert luminance float tex to int %d x %d\n", width, height);
2838 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2839 internalFormat = GL_RGBA;
2843 return internalFormat;
2846 return internalFormat;
2852 * Choose the actual hardware format for a texture image.
2853 * Try to use the same format as the previous image level when possible.
2854 * Otherwise, ask the driver for the best format.
2855 * It's important to try to choose a consistant format for all levels
2856 * for efficient texture memory layout/allocation. In particular, this
2857 * comes up during automatic mipmap generation.
2860 _mesa_choose_texture_format(struct gl_context *ctx,
2861 struct gl_texture_object *texObj,
2862 GLenum target, GLint level,
2863 GLenum internalFormat, GLenum format, GLenum type)
2867 /* see if we've already chosen a format for the previous level */
2869 struct gl_texture_image *prevImage =
2870 _mesa_select_tex_image(ctx, texObj, target, level - 1);
2871 /* See if the prev level is defined and has an internal format which
2872 * matches the new internal format.
2875 prevImage->Width > 0 &&
2876 prevImage->InternalFormat == internalFormat) {
2877 /* use the same format */
2878 ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE);
2879 return prevImage->TexFormat;
2883 /* If the application requested compression to an S3TC format but we don't
2884 * have the DTXn library, force a generic compressed format instead.
2886 if (internalFormat != format && format != GL_NONE) {
2887 const GLenum before = internalFormat;
2889 switch (internalFormat) {
2890 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
2891 if (!ctx->Mesa_DXTn)
2892 internalFormat = GL_COMPRESSED_RGB;
2894 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
2895 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
2896 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
2897 if (!ctx->Mesa_DXTn)
2898 internalFormat = GL_COMPRESSED_RGBA;
2904 if (before != internalFormat) {
2906 "DXT compression requested (%s), "
2907 "but libtxc_dxtn library not installed. Using %s "
2909 _mesa_lookup_enum_by_nr(before),
2910 _mesa_lookup_enum_by_nr(internalFormat));
2914 /* choose format from scratch */
2915 f = ctx->Driver.ChooseTextureFormat(ctx, texObj->Target, internalFormat,
2917 ASSERT(f != MESA_FORMAT_NONE);
2922 * Adjust pixel unpack params and image dimensions to strip off the
2923 * one-pixel texture border.
2925 * Gallium and intel don't support texture borders. They've seldem been used
2926 * and seldom been implemented correctly anyway.
2928 * \param unpackNew returns the new pixel unpack parameters
2931 strip_texture_border(GLenum target,
2932 GLint *width, GLint *height, GLint *depth,
2933 const struct gl_pixelstore_attrib *unpack,
2934 struct gl_pixelstore_attrib *unpackNew)
2940 *unpackNew = *unpack;
2942 if (unpackNew->RowLength == 0)
2943 unpackNew->RowLength = *width;
2945 if (unpackNew->ImageHeight == 0)
2946 unpackNew->ImageHeight = *height;
2948 assert(*width >= 3);
2949 unpackNew->SkipPixels++; /* skip the border */
2950 *width = *width - 2; /* reduce the width by two border pixels */
2952 /* The min height of a texture with a border is 3 */
2953 if (*height >= 3 && target != GL_TEXTURE_1D_ARRAY) {
2954 unpackNew->SkipRows++; /* skip the border */
2955 *height = *height - 2; /* reduce the height by two border pixels */
2958 if (*depth >= 3 && target != GL_TEXTURE_2D_ARRAY && target != GL_TEXTURE_CUBE_MAP_ARRAY) {
2959 unpackNew->SkipImages++; /* skip the border */
2960 *depth = *depth - 2; /* reduce the depth by two border pixels */
2966 * Common code to implement all the glTexImage1D/2D/3D functions
2967 * as well as glCompressedTexImage1D/2D/3D.
2968 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls.
2969 * \param format the user's image format (only used if !compressed)
2970 * \param type the user's image type (only used if !compressed)
2971 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls.
2974 teximage(struct gl_context *ctx, GLboolean compressed, GLuint dims,
2975 GLenum target, GLint level, GLint internalFormat,
2976 GLsizei width, GLsizei height, GLsizei depth,
2977 GLint border, GLenum format, GLenum type,
2978 GLsizei imageSize, const GLvoid *pixels)
2980 const char *func = compressed ? "glCompressedTexImage" : "glTexImage";
2981 struct gl_pixelstore_attrib unpack_no_border;
2982 const struct gl_pixelstore_attrib *unpack = &ctx->Unpack;
2983 struct gl_texture_object *texObj;
2984 gl_format texFormat;
2985 GLboolean dimensionsOK, sizeOK;
2987 FLUSH_VERTICES(ctx, 0);
2989 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) {
2992 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n",
2994 _mesa_lookup_enum_by_nr(target), level,
2995 _mesa_lookup_enum_by_nr(internalFormat),
2996 width, height, depth, border, pixels);
2999 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
3001 _mesa_lookup_enum_by_nr(target), level,
3002 _mesa_lookup_enum_by_nr(internalFormat),
3003 width, height, depth, border,
3004 _mesa_lookup_enum_by_nr(format),
3005 _mesa_lookup_enum_by_nr(type), pixels);
3008 internalFormat = override_internal_format(internalFormat, width, height);
3010 /* target error checking */
3011 if (!legal_teximage_target(ctx, dims, target)) {
3012 _mesa_error(ctx, GL_INVALID_ENUM, "%s%uD(target=%s)",
3013 func, dims, _mesa_lookup_enum_by_nr(target));
3017 /* general error checking */
3019 if (compressed_texture_error_check(ctx, dims, target, level,
3021 width, height, depth,
3026 if (texture_error_check(ctx, dims, target, level, internalFormat,
3027 format, type, width, height, depth, border))
3031 /* Here we convert a cpal compressed image into a regular glTexImage2D
3032 * call by decompressing the texture. If we really want to support cpal
3033 * textures in any driver this would have to be changed.
3035 if (ctx->API == API_OPENGLES && compressed && dims == 2) {
3036 switch (internalFormat) {
3037 case GL_PALETTE4_RGB8_OES:
3038 case GL_PALETTE4_RGBA8_OES:
3039 case GL_PALETTE4_R5_G6_B5_OES:
3040 case GL_PALETTE4_RGBA4_OES:
3041 case GL_PALETTE4_RGB5_A1_OES:
3042 case GL_PALETTE8_RGB8_OES:
3043 case GL_PALETTE8_RGBA8_OES:
3044 case GL_PALETTE8_R5_G6_B5_OES:
3045 case GL_PALETTE8_RGBA4_OES:
3046 case GL_PALETTE8_RGB5_A1_OES:
3047 _mesa_cpal_compressed_teximage2d(target, level, internalFormat,
3048 width, height, imageSize, pixels);
3053 texObj = _mesa_get_current_tex_object(ctx, target);
3057 /* For glCompressedTexImage() the driver has no choice about the
3058 * texture format since we'll never transcode the user's compressed
3059 * image data. The internalFormat was error checked earlier.
3061 texFormat = _mesa_glenum_to_compressed_format(internalFormat);
3064 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
3065 internalFormat, format, type);
3068 assert(texFormat != MESA_FORMAT_NONE);
3070 /* check that width, height, depth are legal for the mipmap level */
3071 dimensionsOK = _mesa_legal_texture_dimensions(ctx, target, level, width,
3072 height, depth, border);
3074 /* check that the texture won't take too much memory, etc */
3075 sizeOK = ctx->Driver.TestProxyTexImage(ctx, _mesa_get_proxy_target(target),
3077 width, height, depth, border);
3079 if (_mesa_is_proxy_texture(target)) {
3080 /* Proxy texture: just clear or set state depending on error checking */
3081 struct gl_texture_image *texImage =
3082 get_proxy_tex_image(ctx, target, level);
3085 return; /* GL_OUT_OF_MEMORY already recorded */
3087 if (dimensionsOK && sizeOK) {
3088 _mesa_init_teximage_fields(ctx, texImage, width, height, depth,
3089 border, internalFormat, texFormat);
3092 clear_teximage_fields(texImage);
3096 /* non-proxy target */
3097 const GLuint face = _mesa_tex_target_to_face(target);
3098 struct gl_texture_image *texImage;
3100 if (!dimensionsOK) {
3101 _mesa_error(ctx, GL_INVALID_VALUE,
3102 "glTexImage%uD(invalid width or height or depth)",
3108 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3109 "glTexImage%uD(image too large)", dims);
3113 /* Allow a hardware driver to just strip out the border, to provide
3114 * reliable but slightly incorrect hardware rendering instead of
3115 * rarely-tested software fallback rendering.
3117 if (border && ctx->Const.StripTextureBorder) {
3118 strip_texture_border(target, &width, &height, &depth, unpack,
3121 unpack = &unpack_no_border;
3124 if (ctx->NewState & _NEW_PIXEL)
3125 _mesa_update_state(ctx);
3127 _mesa_lock_texture(ctx, texObj);
3129 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3132 _mesa_error(ctx, GL_OUT_OF_MEMORY, "%s%uD", func, dims);
3135 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3137 _mesa_init_teximage_fields(ctx, texImage,
3138 width, height, depth,
3139 border, internalFormat, texFormat);
3141 /* Give the texture to the driver. <pixels> may be null. */
3142 if (width > 0 && height > 0 && depth > 0) {
3144 ctx->Driver.CompressedTexImage(ctx, dims, texImage,
3148 ctx->Driver.TexImage(ctx, dims, texImage, format,
3149 type, pixels, unpack);
3153 check_gen_mipmap(ctx, target, texObj, level);
3155 _mesa_update_fbo_texture(ctx, texObj, face, level);
3157 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
3160 _mesa_unlock_texture(ctx, texObj);
3167 * Called from the API. Note that width includes the border.
3170 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
3171 GLsizei width, GLint border, GLenum format,
3172 GLenum type, const GLvoid *pixels )
3174 GET_CURRENT_CONTEXT(ctx);
3175 teximage(ctx, GL_FALSE, 1, target, level, internalFormat, width, 1, 1,
3176 border, format, type, 0, pixels);
3181 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
3182 GLsizei width, GLsizei height, GLint border,
3183 GLenum format, GLenum type,
3184 const GLvoid *pixels )
3186 GET_CURRENT_CONTEXT(ctx);
3187 teximage(ctx, GL_FALSE, 2, target, level, internalFormat, width, height, 1,
3188 border, format, type, 0, pixels);
3193 * Called by the API or display list executor.
3194 * Note that width and height include the border.
3197 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
3198 GLsizei width, GLsizei height, GLsizei depth,
3199 GLint border, GLenum format, GLenum type,
3200 const GLvoid *pixels )
3202 GET_CURRENT_CONTEXT(ctx);
3203 teximage(ctx, GL_FALSE, 3, target, level, internalFormat,
3204 width, height, depth,
3205 border, format, type, 0, pixels);
3210 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
3211 GLsizei width, GLsizei height, GLsizei depth,
3212 GLint border, GLenum format, GLenum type,
3213 const GLvoid *pixels )
3215 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
3216 depth, border, format, type, pixels);
3221 _mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image)
3223 struct gl_texture_object *texObj;
3224 struct gl_texture_image *texImage;
3226 GET_CURRENT_CONTEXT(ctx);
3227 FLUSH_VERTICES(ctx, 0);
3231 valid_target = ctx->Extensions.OES_EGL_image;
3233 case GL_TEXTURE_EXTERNAL_OES:
3234 valid_target = ctx->Extensions.OES_EGL_image_external;
3237 valid_target = false;
3241 if (!valid_target) {
3242 _mesa_error(ctx, GL_INVALID_ENUM,
3243 "glEGLImageTargetTexture2D(target=%d)", target);
3248 _mesa_error(ctx, GL_INVALID_OPERATION,
3249 "glEGLImageTargetTexture2D(image=%p)", image);
3253 if (ctx->NewState & _NEW_PIXEL)
3254 _mesa_update_state(ctx);
3256 texObj = _mesa_get_current_tex_object(ctx, target);
3257 _mesa_lock_texture(ctx, texObj);
3259 if (texObj->Immutable) {
3260 _mesa_error(ctx, GL_INVALID_OPERATION,
3261 "glEGLImageTargetTexture2D(texture is immutable)");
3262 _mesa_unlock_texture(ctx, texObj);
3266 texImage = _mesa_get_tex_image(ctx, texObj, target, 0);
3268 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D");
3270 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3272 ctx->Driver.EGLImageTargetTexture2D(ctx, target,
3273 texObj, texImage, image);
3275 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
3277 _mesa_unlock_texture(ctx, texObj);
3284 * Implement all the glTexSubImage1/2/3D() functions.
3287 texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
3288 GLint xoffset, GLint yoffset, GLint zoffset,
3289 GLsizei width, GLsizei height, GLsizei depth,
3290 GLenum format, GLenum type, const GLvoid *pixels )
3292 struct gl_texture_object *texObj;
3293 struct gl_texture_image *texImage;
3295 FLUSH_VERTICES(ctx, 0);
3297 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3298 _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
3300 _mesa_lookup_enum_by_nr(target), level,
3301 xoffset, yoffset, zoffset, width, height, depth,
3302 _mesa_lookup_enum_by_nr(format),
3303 _mesa_lookup_enum_by_nr(type), pixels);
3305 /* check target (proxies not allowed) */
3306 if (!legal_texsubimage_target(ctx, dims, target)) {
3307 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)",
3308 dims, _mesa_lookup_enum_by_nr(target));
3312 if (ctx->NewState & _NEW_PIXEL)
3313 _mesa_update_state(ctx);
3315 if (texsubimage_error_check(ctx, dims, target, level,
3316 xoffset, yoffset, zoffset,
3317 width, height, depth, format, type)) {
3318 return; /* error was detected */
3321 texObj = _mesa_get_current_tex_object(ctx, target);
3323 _mesa_lock_texture(ctx, texObj);
3325 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3327 if (width > 0 && height > 0 && depth > 0) {
3328 /* If we have a border, offset=-1 is legal. Bias by border width. */
3331 if (target != GL_TEXTURE_2D_ARRAY)
3332 zoffset += texImage->Border;
3335 if (target != GL_TEXTURE_1D_ARRAY)
3336 yoffset += texImage->Border;
3339 xoffset += texImage->Border;
3342 ctx->Driver.TexSubImage(ctx, dims, texImage,
3343 xoffset, yoffset, zoffset,
3344 width, height, depth,
3345 format, type, pixels, &ctx->Unpack);
3347 check_gen_mipmap(ctx, target, texObj, level);
3349 ctx->NewState |= _NEW_TEXTURE;
3352 _mesa_unlock_texture(ctx, texObj);
3357 _mesa_TexSubImage1D( GLenum target, GLint level,
3358 GLint xoffset, GLsizei width,
3359 GLenum format, GLenum type,
3360 const GLvoid *pixels )
3362 GET_CURRENT_CONTEXT(ctx);
3363 texsubimage(ctx, 1, target, level,
3366 format, type, pixels);
3371 _mesa_TexSubImage2D( GLenum target, GLint level,
3372 GLint xoffset, GLint yoffset,
3373 GLsizei width, GLsizei height,
3374 GLenum format, GLenum type,
3375 const GLvoid *pixels )
3377 GET_CURRENT_CONTEXT(ctx);
3378 texsubimage(ctx, 2, target, level,
3379 xoffset, yoffset, 0,
3381 format, type, pixels);
3387 _mesa_TexSubImage3D( GLenum target, GLint level,
3388 GLint xoffset, GLint yoffset, GLint zoffset,
3389 GLsizei width, GLsizei height, GLsizei depth,
3390 GLenum format, GLenum type,
3391 const GLvoid *pixels )
3393 GET_CURRENT_CONTEXT(ctx);
3394 texsubimage(ctx, 3, target, level,
3395 xoffset, yoffset, zoffset,
3396 width, height, depth,
3397 format, type, pixels);
3403 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3404 * from. This depends on whether the texture contains color or depth values.
3406 static struct gl_renderbuffer *
3407 get_copy_tex_image_source(struct gl_context *ctx, gl_format texFormat)
3409 if (_mesa_get_format_bits(texFormat, GL_DEPTH_BITS) > 0) {
3410 /* reading from depth/stencil buffer */
3411 return ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer;
3414 /* copying from color buffer */
3415 return ctx->ReadBuffer->_ColorReadBuffer;
3422 * Implement the glCopyTexImage1/2D() functions.
3425 copyteximage(struct gl_context *ctx, GLuint dims,
3426 GLenum target, GLint level, GLenum internalFormat,
3427 GLint x, GLint y, GLsizei width, GLsizei height, GLint border )
3429 struct gl_texture_object *texObj;
3430 struct gl_texture_image *texImage;
3431 const GLuint face = _mesa_tex_target_to_face(target);
3432 gl_format texFormat;
3434 FLUSH_VERTICES(ctx, 0);
3436 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3437 _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3439 _mesa_lookup_enum_by_nr(target), level,
3440 _mesa_lookup_enum_by_nr(internalFormat),
3441 x, y, width, height, border);
3443 if (ctx->NewState & NEW_COPY_TEX_STATE)
3444 _mesa_update_state(ctx);
3446 if (copytexture_error_check(ctx, dims, target, level, internalFormat,
3447 width, height, border))
3450 if (!_mesa_legal_texture_dimensions(ctx, target, level, width, height,
3452 _mesa_error(ctx, GL_INVALID_VALUE,
3453 "glCopyTexImage%uD(invalid width or height)", dims);
3457 texObj = _mesa_get_current_tex_object(ctx, target);
3460 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
3461 internalFormat, GL_NONE, GL_NONE);
3462 assert(texFormat != MESA_FORMAT_NONE);
3464 if (!ctx->Driver.TestProxyTexImage(ctx, _mesa_get_proxy_target(target),
3466 width, height, 1, border)) {
3467 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3468 "glCopyTexImage%uD(image too large)", dims);
3472 if (border && ctx->Const.StripTextureBorder) {
3474 width -= border * 2;
3477 height -= border * 2;
3482 _mesa_lock_texture(ctx, texObj);
3484 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3487 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
3490 GLint srcX = x, srcY = y, dstX = 0, dstY = 0, dstZ = 0;
3492 /* Free old texture image */
3493 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3495 _mesa_init_teximage_fields(ctx, texImage, width, height, 1,
3496 border, internalFormat, texFormat);
3498 if (width && height) {
3499 /* Allocate texture memory (no pixel data yet) */
3500 ctx->Driver.AllocTextureImageBuffer(ctx, texImage);
3502 if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY,
3504 struct gl_renderbuffer *srcRb =
3505 get_copy_tex_image_source(ctx, texImage->TexFormat);
3507 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, dstX, dstY, dstZ,
3508 srcRb, srcX, srcY, width, height);
3511 check_gen_mipmap(ctx, target, texObj, level);
3514 _mesa_update_fbo_texture(ctx, texObj, face, level);
3516 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
3519 _mesa_unlock_texture(ctx, texObj);
3525 _mesa_CopyTexImage1D( GLenum target, GLint level,
3526 GLenum internalFormat,
3528 GLsizei width, GLint border )
3530 GET_CURRENT_CONTEXT(ctx);
3531 copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border);
3537 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
3538 GLint x, GLint y, GLsizei width, GLsizei height,
3541 GET_CURRENT_CONTEXT(ctx);
3542 copyteximage(ctx, 2, target, level, internalFormat,
3543 x, y, width, height, border);
3549 * Implementation for glCopyTexSubImage1/2/3D() functions.
3552 copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
3553 GLint xoffset, GLint yoffset, GLint zoffset,
3554 GLint x, GLint y, GLsizei width, GLsizei height)
3556 struct gl_texture_object *texObj;
3557 struct gl_texture_image *texImage;
3559 FLUSH_VERTICES(ctx, 0);
3561 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3562 _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
3564 _mesa_lookup_enum_by_nr(target),
3565 level, xoffset, yoffset, zoffset, x, y, width, height);
3567 if (ctx->NewState & NEW_COPY_TEX_STATE)
3568 _mesa_update_state(ctx);
3570 if (copytexsubimage_error_check(ctx, dims, target, level,
3571 xoffset, yoffset, zoffset, width, height)) {
3575 texObj = _mesa_get_current_tex_object(ctx, target);
3577 _mesa_lock_texture(ctx, texObj);
3579 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3581 /* If we have a border, offset=-1 is legal. Bias by border width. */
3584 if (target != GL_TEXTURE_2D_ARRAY)
3585 zoffset += texImage->Border;
3588 if (target != GL_TEXTURE_1D_ARRAY)
3589 yoffset += texImage->Border;
3592 xoffset += texImage->Border;
3595 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3597 struct gl_renderbuffer *srcRb =
3598 get_copy_tex_image_source(ctx, texImage->TexFormat);
3600 ctx->Driver.CopyTexSubImage(ctx, dims, texImage,
3601 xoffset, yoffset, zoffset,
3602 srcRb, x, y, width, height);
3604 check_gen_mipmap(ctx, target, texObj, level);
3606 ctx->NewState |= _NEW_TEXTURE;
3609 _mesa_unlock_texture(ctx, texObj);
3614 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
3615 GLint xoffset, GLint x, GLint y, GLsizei width )
3617 GET_CURRENT_CONTEXT(ctx);
3618 copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1);
3624 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
3625 GLint xoffset, GLint yoffset,
3626 GLint x, GLint y, GLsizei width, GLsizei height )
3628 GET_CURRENT_CONTEXT(ctx);
3629 copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y,
3636 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
3637 GLint xoffset, GLint yoffset, GLint zoffset,
3638 GLint x, GLint y, GLsizei width, GLsizei height )
3640 GET_CURRENT_CONTEXT(ctx);
3641 copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset,
3642 x, y, width, height);
3648 /**********************************************************************/
3649 /****** Compressed Textures ******/
3650 /**********************************************************************/
3654 * Error checking for glCompressedTexSubImage[123]D().
3655 * \return error code or GL_NO_ERROR.
3658 compressed_subtexture_error_check(struct gl_context *ctx, GLint dims,
3659 GLenum target, GLint level,
3660 GLint xoffset, GLint yoffset, GLint zoffset,
3661 GLsizei width, GLsizei height, GLsizei depth,
3662 GLenum format, GLsizei imageSize)
3664 struct gl_texture_object *texObj;
3665 struct gl_texture_image *texImage;
3673 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
3674 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
3675 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
3676 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
3677 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
3678 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
3682 targetOK = GL_FALSE;
3687 targetOK = (target == GL_TEXTURE_2D_ARRAY);
3691 /* no 1D compressed textures at this time */
3692 targetOK = GL_FALSE;
3697 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(target)",
3702 /* this will catch any invalid compressed format token */
3703 if (!_mesa_is_compressed_format(ctx, format)) {
3704 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(format)",
3709 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
3710 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexImage%uD(level=%d)",
3715 expectedSize = compressed_tex_size(width, height, depth, format);
3716 if (expectedSize != imageSize) {
3717 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexImage%uD(size=%d)",
3722 texObj = _mesa_get_current_tex_object(ctx, target);
3724 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3725 "glCompressedTexSubImage%uD()", dims);
3729 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3731 _mesa_error(ctx, GL_INVALID_OPERATION,
3732 "glCompressedTexSubImage%uD(invalid texture image)", dims);
3736 if ((GLint) format != texImage->InternalFormat) {
3737 _mesa_error(ctx, GL_INVALID_OPERATION,
3738 "glCompressedTexSubImage%uD(format=0x%x)", dims, format);
3742 if (compressedteximage_only_format(ctx, format)) {
3743 _mesa_error(ctx, GL_INVALID_OPERATION,
3744 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)"
3749 if (error_check_subtexture_dimensions(ctx, "glCompressedTexSubImage", dims,
3750 texImage, xoffset, yoffset, zoffset,
3751 width, height, depth)) {
3760 _mesa_CompressedTexImage1D(GLenum target, GLint level,
3761 GLenum internalFormat, GLsizei width,
3762 GLint border, GLsizei imageSize,
3765 GET_CURRENT_CONTEXT(ctx);
3766 teximage(ctx, GL_TRUE, 1, target, level, internalFormat,
3767 width, 1, 1, border, GL_NONE, GL_NONE, imageSize, data);
3772 _mesa_CompressedTexImage2D(GLenum target, GLint level,
3773 GLenum internalFormat, GLsizei width,
3774 GLsizei height, GLint border, GLsizei imageSize,
3777 GET_CURRENT_CONTEXT(ctx);
3778 teximage(ctx, GL_TRUE, 2, target, level, internalFormat,
3779 width, height, 1, border, GL_NONE, GL_NONE, imageSize, data);
3784 _mesa_CompressedTexImage3D(GLenum target, GLint level,
3785 GLenum internalFormat, GLsizei width,
3786 GLsizei height, GLsizei depth, GLint border,
3787 GLsizei imageSize, const GLvoid *data)
3789 GET_CURRENT_CONTEXT(ctx);
3790 teximage(ctx, GL_TRUE, 3, target, level, internalFormat,
3791 width, height, depth, border, GL_NONE, GL_NONE, imageSize, data);
3796 * Common helper for glCompressedTexSubImage1/2/3D().
3799 compressed_tex_sub_image(GLuint dims, GLenum target, GLint level,
3800 GLint xoffset, GLint yoffset, GLint zoffset,
3801 GLsizei width, GLsizei height, GLsizei depth,
3802 GLenum format, GLsizei imageSize, const GLvoid *data)
3804 struct gl_texture_object *texObj;
3805 struct gl_texture_image *texImage;
3806 GET_CURRENT_CONTEXT(ctx);
3807 FLUSH_VERTICES(ctx, 0);
3809 if (compressed_subtexture_error_check(ctx, dims, target, level,
3810 xoffset, yoffset, zoffset,
3811 width, height, depth,
3812 format, imageSize)) {
3816 texObj = _mesa_get_current_tex_object(ctx, target);
3818 _mesa_lock_texture(ctx, texObj);
3820 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3823 if (width > 0 && height > 0 && depth > 0) {
3824 ctx->Driver.CompressedTexSubImage(ctx, dims, texImage,
3825 xoffset, yoffset, zoffset,
3826 width, height, depth,
3827 format, imageSize, data);
3829 check_gen_mipmap(ctx, target, texObj, level);
3831 ctx->NewState |= _NEW_TEXTURE;
3834 _mesa_unlock_texture(ctx, texObj);
3839 _mesa_CompressedTexSubImage1D(GLenum target, GLint level, GLint xoffset,
3840 GLsizei width, GLenum format,
3841 GLsizei imageSize, const GLvoid *data)
3843 compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1,
3844 format, imageSize, data);
3849 _mesa_CompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset,
3850 GLint yoffset, GLsizei width, GLsizei height,
3851 GLenum format, GLsizei imageSize,
3854 compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0,
3855 width, height, 1, format, imageSize, data);
3860 _mesa_CompressedTexSubImage3D(GLenum target, GLint level, GLint xoffset,
3861 GLint yoffset, GLint zoffset, GLsizei width,
3862 GLsizei height, GLsizei depth, GLenum format,
3863 GLsizei imageSize, const GLvoid *data)
3865 compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset,
3866 width, height, depth, format, imageSize, data);
3870 get_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat)
3872 switch (internalFormat) {
3874 return MESA_FORMAT_A8;
3876 return MESA_FORMAT_A16;
3877 case GL_ALPHA16F_ARB:
3878 return MESA_FORMAT_ALPHA_FLOAT16;
3879 case GL_ALPHA32F_ARB:
3880 return MESA_FORMAT_ALPHA_FLOAT32;
3881 case GL_ALPHA8I_EXT:
3882 return MESA_FORMAT_ALPHA_INT8;
3883 case GL_ALPHA16I_EXT:
3884 return MESA_FORMAT_ALPHA_INT16;
3885 case GL_ALPHA32I_EXT:
3886 return MESA_FORMAT_ALPHA_INT32;
3887 case GL_ALPHA8UI_EXT:
3888 return MESA_FORMAT_ALPHA_UINT8;
3889 case GL_ALPHA16UI_EXT:
3890 return MESA_FORMAT_ALPHA_UINT16;
3891 case GL_ALPHA32UI_EXT:
3892 return MESA_FORMAT_ALPHA_UINT32;
3894 return MESA_FORMAT_L8;
3895 case GL_LUMINANCE16:
3896 return MESA_FORMAT_L16;
3897 case GL_LUMINANCE16F_ARB:
3898 return MESA_FORMAT_LUMINANCE_FLOAT16;
3899 case GL_LUMINANCE32F_ARB:
3900 return MESA_FORMAT_LUMINANCE_FLOAT32;
3901 case GL_LUMINANCE8I_EXT:
3902 return MESA_FORMAT_LUMINANCE_INT8;
3903 case GL_LUMINANCE16I_EXT:
3904 return MESA_FORMAT_LUMINANCE_INT16;
3905 case GL_LUMINANCE32I_EXT:
3906 return MESA_FORMAT_LUMINANCE_INT32;
3907 case GL_LUMINANCE8UI_EXT:
3908 return MESA_FORMAT_LUMINANCE_UINT8;
3909 case GL_LUMINANCE16UI_EXT:
3910 return MESA_FORMAT_LUMINANCE_UINT16;
3911 case GL_LUMINANCE32UI_EXT:
3912 return MESA_FORMAT_LUMINANCE_UINT32;
3913 case GL_LUMINANCE8_ALPHA8:
3914 return MESA_FORMAT_AL88;
3915 case GL_LUMINANCE16_ALPHA16:
3916 return MESA_FORMAT_AL1616;
3917 case GL_LUMINANCE_ALPHA16F_ARB:
3918 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16;
3919 case GL_LUMINANCE_ALPHA32F_ARB:
3920 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32;
3921 case GL_LUMINANCE_ALPHA8I_EXT:
3922 return MESA_FORMAT_LUMINANCE_ALPHA_INT8;
3923 case GL_LUMINANCE_ALPHA16I_EXT:
3924 return MESA_FORMAT_LUMINANCE_ALPHA_INT8;
3925 case GL_LUMINANCE_ALPHA32I_EXT:
3926 return MESA_FORMAT_LUMINANCE_ALPHA_INT16;
3927 case GL_LUMINANCE_ALPHA8UI_EXT:
3928 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8;
3929 case GL_LUMINANCE_ALPHA16UI_EXT:
3930 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16;
3931 case GL_LUMINANCE_ALPHA32UI_EXT:
3932 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32;
3934 return MESA_FORMAT_I8;
3935 case GL_INTENSITY16:
3936 return MESA_FORMAT_I16;
3937 case GL_INTENSITY16F_ARB:
3938 return MESA_FORMAT_INTENSITY_FLOAT16;
3939 case GL_INTENSITY32F_ARB:
3940 return MESA_FORMAT_INTENSITY_FLOAT32;
3941 case GL_INTENSITY8I_EXT:
3942 return MESA_FORMAT_INTENSITY_INT8;
3943 case GL_INTENSITY16I_EXT:
3944 return MESA_FORMAT_INTENSITY_INT16;
3945 case GL_INTENSITY32I_EXT:
3946 return MESA_FORMAT_INTENSITY_INT32;
3947 case GL_INTENSITY8UI_EXT:
3948 return MESA_FORMAT_INTENSITY_UINT8;
3949 case GL_INTENSITY16UI_EXT:
3950 return MESA_FORMAT_INTENSITY_UINT16;
3951 case GL_INTENSITY32UI_EXT:
3952 return MESA_FORMAT_INTENSITY_UINT32;
3954 return MESA_FORMAT_RGBA8888_REV;
3956 return MESA_FORMAT_RGBA_16;
3957 case GL_RGBA16F_ARB:
3958 return MESA_FORMAT_RGBA_FLOAT16;
3959 case GL_RGBA32F_ARB:
3960 return MESA_FORMAT_RGBA_FLOAT32;
3962 return MESA_FORMAT_RGBA_INT8;
3963 case GL_RGBA16I_EXT:
3964 return MESA_FORMAT_RGBA_INT16;
3965 case GL_RGBA32I_EXT:
3966 return MESA_FORMAT_RGBA_INT32;
3967 case GL_RGBA8UI_EXT:
3968 return MESA_FORMAT_RGBA_UINT8;
3969 case GL_RGBA16UI_EXT:
3970 return MESA_FORMAT_RGBA_UINT16;
3971 case GL_RGBA32UI_EXT:
3972 return MESA_FORMAT_RGBA_UINT32;
3975 return MESA_FORMAT_GR88;
3977 return MESA_FORMAT_GR1616;
3979 return MESA_FORMAT_RG_FLOAT16;
3981 return MESA_FORMAT_RG_FLOAT32;
3983 return MESA_FORMAT_RG_INT8;
3985 return MESA_FORMAT_RG_INT16;
3987 return MESA_FORMAT_RG_INT32;
3989 return MESA_FORMAT_RG_UINT8;
3991 return MESA_FORMAT_RG_UINT16;
3993 return MESA_FORMAT_RG_UINT32;
3996 return MESA_FORMAT_R8;
3998 return MESA_FORMAT_R16;
4000 return MESA_FORMAT_R_FLOAT16;
4002 return MESA_FORMAT_R_FLOAT32;
4004 return MESA_FORMAT_R_INT8;
4006 return MESA_FORMAT_R_INT16;
4008 return MESA_FORMAT_R_INT32;
4010 return MESA_FORMAT_R_UINT8;
4012 return MESA_FORMAT_R_UINT16;
4014 return MESA_FORMAT_R_UINT32;
4017 return MESA_FORMAT_RGB_FLOAT32;
4019 return MESA_FORMAT_RGB_UINT32;
4021 return MESA_FORMAT_RGB_INT32;
4024 return MESA_FORMAT_NONE;
4029 validate_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat)
4031 gl_format format = get_texbuffer_format(ctx, internalFormat);
4034 if (format == MESA_FORMAT_NONE)
4035 return MESA_FORMAT_NONE;
4037 datatype = _mesa_get_format_datatype(format);
4038 if (datatype == GL_FLOAT && !ctx->Extensions.ARB_texture_float)
4039 return MESA_FORMAT_NONE;
4041 if (datatype == GL_HALF_FLOAT && !ctx->Extensions.ARB_half_float_pixel)
4042 return MESA_FORMAT_NONE;
4044 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make
4045 * any mention of R/RG formats, but they appear in the GL 3.1 core
4048 if (ctx->Version <= 30) {
4049 GLenum base_format = _mesa_get_format_base_format(format);
4051 if (base_format == GL_R || base_format == GL_RG)
4052 return MESA_FORMAT_NONE;
4055 if (!ctx->Extensions.ARB_texture_buffer_object_rgb32) {
4056 GLenum base_format = _mesa_get_format_base_format(format);
4057 if (base_format == GL_RGB)
4058 return MESA_FORMAT_NONE;
4065 texbufferrange(struct gl_context *ctx, GLenum target, GLenum internalFormat,
4066 struct gl_buffer_object *bufObj,
4067 GLintptr offset, GLsizeiptr size)
4069 struct gl_texture_object *texObj;
4072 FLUSH_VERTICES(ctx, 0);
4074 if (target != GL_TEXTURE_BUFFER_ARB) {
4075 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(target)");
4079 format = validate_texbuffer_format(ctx, internalFormat);
4080 if (format == MESA_FORMAT_NONE) {
4081 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(internalFormat 0x%x)",
4086 texObj = _mesa_get_current_tex_object(ctx, target);
4088 _mesa_lock_texture(ctx, texObj);
4090 _mesa_reference_buffer_object(ctx, &texObj->BufferObject, bufObj);
4091 texObj->BufferObjectFormat = internalFormat;
4092 texObj->_BufferObjectFormat = format;
4093 texObj->BufferOffset = offset;
4094 texObj->BufferSize = size;
4096 _mesa_unlock_texture(ctx, texObj);
4099 /** GL_ARB_texture_buffer_object */
4101 _mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer)
4103 struct gl_buffer_object *bufObj;
4105 GET_CURRENT_CONTEXT(ctx);
4107 /* NOTE: ARB_texture_buffer_object has interactions with
4108 * the compatibility profile that are not implemented.
4110 if (!(ctx->API == API_OPENGL_CORE &&
4111 ctx->Extensions.ARB_texture_buffer_object)) {
4112 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer");
4116 bufObj = _mesa_lookup_bufferobj(ctx, buffer);
4117 if (!bufObj && buffer) {
4118 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer(buffer %u)", buffer);
4122 texbufferrange(ctx, target, internalFormat, bufObj, 0, buffer ? -1 : 0);
4125 /** GL_ARB_texture_buffer_range */
4127 _mesa_TexBufferRange(GLenum target, GLenum internalFormat, GLuint buffer,
4128 GLintptr offset, GLsizeiptr size)
4130 struct gl_buffer_object *bufObj;
4132 GET_CURRENT_CONTEXT(ctx);
4134 if (!(ctx->API == API_OPENGL_CORE &&
4135 ctx->Extensions.ARB_texture_buffer_range)) {
4136 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBufferRange");
4140 bufObj = _mesa_lookup_bufferobj(ctx, buffer);
4144 (offset + size) > bufObj->Size) {
4145 _mesa_error(ctx, GL_INVALID_VALUE, "glTexBufferRange");
4148 if (offset % ctx->Const.TextureBufferOffsetAlignment) {
4149 _mesa_error(ctx, GL_INVALID_VALUE,
4150 "glTexBufferRange(invalid offset alignment)");
4153 } else if (buffer) {
4154 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBufferRange(buffer %u)",
4162 texbufferrange(ctx, target, internalFormat, bufObj, offset, size);
4166 is_renderable_texture_format(struct gl_context *ctx, GLenum internalformat)
4168 /* Everything that is allowed for renderbuffers,
4169 * except for a base format of GL_STENCIL_INDEX.
4171 GLenum baseFormat = _mesa_base_fbo_format(ctx, internalformat);
4172 return baseFormat != 0 && baseFormat != GL_STENCIL_INDEX;
4175 /** GL_ARB_texture_multisample */
4177 check_multisample_target(GLuint dims, GLenum target)
4180 case GL_TEXTURE_2D_MULTISAMPLE:
4181 case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
4184 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
4185 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
4194 teximagemultisample(GLuint dims, GLenum target, GLsizei samples,
4195 GLint internalformat, GLsizei width, GLsizei height,
4196 GLsizei depth, GLboolean fixedsamplelocations)
4198 struct gl_texture_object *texObj;
4199 struct gl_texture_image *texImage;
4200 GLboolean sizeOK, dimensionsOK;
4201 gl_format texFormat;
4203 GET_CURRENT_CONTEXT(ctx);
4205 if (!(ctx->Extensions.ARB_texture_multisample
4206 && _mesa_is_desktop_gl(ctx))) {
4207 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexImage%uDMultisample", dims);
4211 if (!check_multisample_target(dims, target)) {
4212 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage%uDMultisample(target)", dims);
4216 /* check that the specified internalformat is color/depth/stencil-renderable;
4217 * refer GL3.1 spec 4.4.4
4220 if (!is_renderable_texture_format(ctx, internalformat)) {
4221 _mesa_error(ctx, GL_INVALID_OPERATION,
4222 "glTexImage%uDMultisample(internalformat=%s)",
4224 _mesa_lookup_enum_by_nr(internalformat));
4228 if (_mesa_is_enum_format_integer(internalformat)) {
4229 if (samples > ctx->Const.MaxIntegerSamples) {
4230 _mesa_error(ctx, GL_INVALID_OPERATION,
4231 "glTexImage%uDMultisample(samples>GL_MAX_INTEGER_SAMPLES)",
4236 else if (_mesa_is_depth_or_stencil_format(internalformat)) {
4237 if (samples > ctx->Const.MaxDepthTextureSamples) {
4238 _mesa_error(ctx, GL_INVALID_OPERATION,
4239 "glTexImage%uDMultisample(samples>GL_MAX_DEPTH_TEXTURE_SAMPLES)",
4245 if (samples > ctx->Const.MaxColorTextureSamples) {
4246 _mesa_error(ctx, GL_INVALID_OPERATION,
4247 "glTexImage%uDMultisample(samples>GL_MAX_COLOR_TEXTURE_SAMPLES)",
4253 /* TODO: should ask the driver for the exact limit for this internalformat
4254 * once IDR's internalformat_query bits land
4257 texObj = _mesa_get_current_tex_object(ctx, target);
4258 texImage = _mesa_get_tex_image(ctx, texObj, 0, 0);
4260 if (texImage == NULL) {
4261 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uDMultisample()", dims);
4265 texFormat = _mesa_choose_texture_format(ctx, texObj, target, 0,
4266 internalformat, GL_NONE, GL_NONE);
4267 assert(texFormat != MESA_FORMAT_NONE);
4269 dimensionsOK = _mesa_legal_texture_dimensions(ctx, target, 0,
4270 width, height, depth, 0);
4272 sizeOK = ctx->Driver.TestProxyTexImage(ctx, target, 0, texFormat,
4273 width, height, depth, 0);
4275 if (_mesa_is_proxy_texture(target)) {
4276 if (dimensionsOK && sizeOK) {
4277 _mesa_init_teximage_fields(ctx, texImage,
4278 width, height, depth, 0, internalformat, texFormat);
4279 texImage->NumSamples = samples;
4280 texImage->FixedSampleLocations = fixedsamplelocations;
4283 /* clear all image fields */
4284 _mesa_init_teximage_fields(ctx, texImage,
4285 0, 0, 0, 0, GL_NONE, MESA_FORMAT_NONE);
4289 if (!dimensionsOK) {
4290 _mesa_error(ctx, GL_INVALID_VALUE,
4291 "glTexImage%uDMultisample(invalid width or height)", dims);
4296 _mesa_error(ctx, GL_OUT_OF_MEMORY,
4297 "glTexImage%uDMultisample(texture too large)", dims);
4301 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
4303 _mesa_init_teximage_fields(ctx, texImage,
4304 width, height, depth, 0, internalformat, texFormat);
4306 texImage->NumSamples = samples;
4307 texImage->FixedSampleLocations = fixedsamplelocations;
4309 if (width > 0 && height > 0 && depth > 0) {
4311 if (!ctx->Driver.AllocTextureStorage(ctx, texObj, 1,
4312 width, height, depth)) {
4313 /* tidy up the texture image state. strictly speaking,
4314 * we're allowed to just leave this in whatever state we
4315 * like, but being tidy is good.
4317 _mesa_init_teximage_fields(ctx, texImage,
4318 0, 0, 0, 0, GL_NONE, MESA_FORMAT_NONE);
4322 _mesa_update_fbo_texture(ctx, texObj, 0, 0);
4327 _mesa_TexImage2DMultisample(GLenum target, GLsizei samples,
4328 GLint internalformat, GLsizei width,
4329 GLsizei height, GLboolean fixedsamplelocations)
4331 teximagemultisample(2, target, samples, internalformat,
4332 width, height, 1, fixedsamplelocations);
4336 _mesa_TexImage3DMultisample(GLenum target, GLsizei samples,
4337 GLint internalformat, GLsizei width,
4338 GLsizei height, GLsizei depth,
4339 GLboolean fixedsamplelocations)
4341 teximagemultisample(3, target, samples, internalformat,
4342 width, height, depth, fixedsamplelocations);