2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 * Texture image-related functions.
33 #include "bufferobj.h"
37 #include "framebuffer.h"
42 #include "mfeatures.h"
44 #include "texcompress.h"
52 * State changes which we care about for glCopyTex[Sub]Image() calls.
53 * In particular, we care about pixel transfer state and buffer state
54 * (such as glReadBuffer to make sure we read from the right renderbuffer).
56 #define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
61 * Return the simple base format for a given internal texture format.
62 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
64 * \param ctx GL context.
65 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
67 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
68 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
70 * This is the format which is used during texture application (i.e. the
71 * texture format and env mode determine the arithmetic used.
73 * XXX this could be static
76 _mesa_base_tex_format( struct gl_context
*ctx
, GLint internalFormat
)
78 switch (internalFormat
) {
93 case GL_LUMINANCE_ALPHA
:
94 case GL_LUMINANCE4_ALPHA4
:
95 case GL_LUMINANCE6_ALPHA2
:
96 case GL_LUMINANCE8_ALPHA8
:
97 case GL_LUMINANCE12_ALPHA4
:
98 case GL_LUMINANCE12_ALPHA12
:
99 case GL_LUMINANCE16_ALPHA16
:
100 return GL_LUMINANCE_ALPHA
;
131 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
133 if (ctx
->API
!= API_OPENGL
) {
134 switch (internalFormat
) {
142 if (ctx
->Extensions
.ARB_depth_texture
) {
143 switch (internalFormat
) {
144 case GL_DEPTH_COMPONENT
:
145 case GL_DEPTH_COMPONENT16
:
146 case GL_DEPTH_COMPONENT24
:
147 case GL_DEPTH_COMPONENT32
:
148 return GL_DEPTH_COMPONENT
;
154 switch (internalFormat
) {
155 case GL_COMPRESSED_ALPHA
:
157 case GL_COMPRESSED_LUMINANCE
:
159 case GL_COMPRESSED_LUMINANCE_ALPHA
:
160 return GL_LUMINANCE_ALPHA
;
161 case GL_COMPRESSED_INTENSITY
:
163 case GL_COMPRESSED_RGB
:
165 case GL_COMPRESSED_RGBA
:
171 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
) {
172 switch (internalFormat
) {
173 case GL_COMPRESSED_RGB_FXT1_3DFX
:
175 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
182 if (ctx
->Extensions
.EXT_texture_compression_s3tc
) {
183 switch (internalFormat
) {
184 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
186 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
187 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
188 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
195 if (ctx
->Extensions
.S3_s3tc
) {
196 switch (internalFormat
) {
208 if (ctx
->Extensions
.MESA_ycbcr_texture
) {
209 if (internalFormat
== GL_YCBCR_MESA
)
210 return GL_YCBCR_MESA
;
213 if (ctx
->Extensions
.ARB_texture_float
) {
214 switch (internalFormat
) {
215 case GL_ALPHA16F_ARB
:
216 case GL_ALPHA32F_ARB
:
224 case GL_INTENSITY16F_ARB
:
225 case GL_INTENSITY32F_ARB
:
227 case GL_LUMINANCE16F_ARB
:
228 case GL_LUMINANCE32F_ARB
:
230 case GL_LUMINANCE_ALPHA16F_ARB
:
231 case GL_LUMINANCE_ALPHA32F_ARB
:
232 return GL_LUMINANCE_ALPHA
;
238 if (ctx
->Extensions
.ATI_envmap_bumpmap
) {
239 switch (internalFormat
) {
248 if (ctx
->Extensions
.EXT_texture_snorm
) {
249 switch (internalFormat
) {
264 case GL_RGBA16_SNORM
:
267 case GL_ALPHA8_SNORM
:
268 case GL_ALPHA16_SNORM
:
270 case GL_LUMINANCE_SNORM
:
271 case GL_LUMINANCE8_SNORM
:
272 case GL_LUMINANCE16_SNORM
:
274 case GL_LUMINANCE_ALPHA_SNORM
:
275 case GL_LUMINANCE8_ALPHA8_SNORM
:
276 case GL_LUMINANCE16_ALPHA16_SNORM
:
277 return GL_LUMINANCE_ALPHA
;
278 case GL_INTENSITY_SNORM
:
279 case GL_INTENSITY8_SNORM
:
280 case GL_INTENSITY16_SNORM
:
287 if (ctx
->Extensions
.EXT_packed_depth_stencil
) {
288 switch (internalFormat
) {
289 case GL_DEPTH_STENCIL_EXT
:
290 case GL_DEPTH24_STENCIL8_EXT
:
291 return GL_DEPTH_STENCIL_EXT
;
297 #if FEATURE_EXT_texture_sRGB
298 if (ctx
->Extensions
.EXT_texture_sRGB
) {
299 switch (internalFormat
) {
302 case GL_COMPRESSED_SRGB_EXT
:
303 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
305 case GL_SRGB_ALPHA_EXT
:
306 case GL_SRGB8_ALPHA8_EXT
:
307 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
308 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
309 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
310 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
312 case GL_SLUMINANCE_ALPHA_EXT
:
313 case GL_SLUMINANCE8_ALPHA8_EXT
:
314 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
315 return GL_LUMINANCE_ALPHA
;
316 case GL_SLUMINANCE_EXT
:
317 case GL_SLUMINANCE8_EXT
:
318 case GL_COMPRESSED_SLUMINANCE_EXT
:
324 #endif /* FEATURE_EXT_texture_sRGB */
326 if (ctx
->Extensions
.EXT_texture_integer
) {
327 switch (internalFormat
) {
329 case GL_RGBA16UI_EXT
:
330 case GL_RGBA32UI_EXT
:
343 case GL_ALPHA8UI_EXT
:
344 case GL_ALPHA16UI_EXT
:
345 case GL_ALPHA32UI_EXT
:
347 case GL_ALPHA16I_EXT
:
348 case GL_ALPHA32I_EXT
:
350 case GL_INTENSITY8UI_EXT
:
351 case GL_INTENSITY16UI_EXT
:
352 case GL_INTENSITY32UI_EXT
:
353 case GL_INTENSITY8I_EXT
:
354 case GL_INTENSITY16I_EXT
:
355 case GL_INTENSITY32I_EXT
:
357 case GL_LUMINANCE8UI_EXT
:
358 case GL_LUMINANCE16UI_EXT
:
359 case GL_LUMINANCE32UI_EXT
:
360 case GL_LUMINANCE8I_EXT
:
361 case GL_LUMINANCE16I_EXT
:
362 case GL_LUMINANCE32I_EXT
:
364 case GL_LUMINANCE_ALPHA8UI_EXT
:
365 case GL_LUMINANCE_ALPHA16UI_EXT
:
366 case GL_LUMINANCE_ALPHA32UI_EXT
:
367 case GL_LUMINANCE_ALPHA8I_EXT
:
368 case GL_LUMINANCE_ALPHA16I_EXT
:
369 case GL_LUMINANCE_ALPHA32I_EXT
:
370 return GL_LUMINANCE_ALPHA
;
376 if (ctx
->Extensions
.ARB_texture_rg
) {
377 switch (internalFormat
) {
379 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
381 if (!ctx
->Extensions
.ARB_half_float_pixel
)
385 if (!ctx
->Extensions
.ARB_texture_float
)
394 if (!ctx
->Extensions
.EXT_texture_integer
)
400 case GL_COMPRESSED_RED
:
404 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
406 if (!ctx
->Extensions
.ARB_half_float_pixel
)
410 if (!ctx
->Extensions
.ARB_texture_float
)
419 if (!ctx
->Extensions
.EXT_texture_integer
)
425 case GL_COMPRESSED_RG
:
432 if (ctx
->Extensions
.EXT_texture_shared_exponent
) {
433 switch (internalFormat
) {
441 if (ctx
->Extensions
.EXT_packed_float
) {
442 switch (internalFormat
) {
443 case GL_R11F_G11F_B10F_EXT
:
450 if (ctx
->Extensions
.ARB_depth_buffer_float
) {
451 switch (internalFormat
) {
452 case GL_DEPTH_COMPONENT32F
:
453 return GL_DEPTH_COMPONENT
;
454 case GL_DEPTH32F_STENCIL8
:
455 return GL_DEPTH_STENCIL
;
461 if (ctx
->Extensions
.ARB_texture_compression_rgtc
) {
462 switch (internalFormat
) {
463 case GL_COMPRESSED_RED_RGTC1
:
464 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
466 case GL_COMPRESSED_RG_RGTC2
:
467 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
474 if (ctx
->Extensions
.EXT_texture_compression_latc
) {
475 switch (internalFormat
) {
476 case GL_COMPRESSED_LUMINANCE_LATC1_EXT
:
477 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT
:
479 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
:
480 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT
:
481 return GL_LUMINANCE_ALPHA
;
487 if (ctx
->Extensions
.ATI_texture_compression_3dc
) {
488 switch (internalFormat
) {
489 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
490 return GL_LUMINANCE_ALPHA
;
496 if (ctx
->Extensions
.OES_compressed_ETC1_RGB8_texture
) {
497 switch (internalFormat
) {
498 case GL_ETC1_RGB8_OES
:
505 if (ctx
->API
== API_OPENGLES
) {
506 switch (internalFormat
) {
507 case GL_PALETTE4_RGB8_OES
:
508 case GL_PALETTE4_R5_G6_B5_OES
:
509 case GL_PALETTE8_RGB8_OES
:
510 case GL_PALETTE8_R5_G6_B5_OES
:
512 case GL_PALETTE4_RGBA8_OES
:
513 case GL_PALETTE8_RGB5_A1_OES
:
514 case GL_PALETTE4_RGBA4_OES
:
515 case GL_PALETTE4_RGB5_A1_OES
:
516 case GL_PALETTE8_RGBA8_OES
:
517 case GL_PALETTE8_RGBA4_OES
:
524 return -1; /* error */
529 * For cube map faces, return a face index in [0,5].
530 * For other targets return 0;
533 _mesa_tex_target_to_face(GLenum target
)
535 if (_mesa_is_cube_face(target
))
536 return (GLuint
) target
- (GLuint
) GL_TEXTURE_CUBE_MAP_POSITIVE_X
;
544 * Store a gl_texture_image pointer in a gl_texture_object structure
545 * according to the target and level parameters.
547 * \param tObj texture object.
548 * \param target texture target.
549 * \param level image level.
550 * \param texImage texture image.
553 _mesa_set_tex_image(struct gl_texture_object
*tObj
,
554 GLenum target
, GLint level
,
555 struct gl_texture_image
*texImage
)
557 const GLuint face
= _mesa_tex_target_to_face(target
);
561 if (target
== GL_TEXTURE_RECTANGLE_NV
|| target
== GL_TEXTURE_EXTERNAL_OES
)
564 tObj
->Image
[face
][level
] = texImage
;
566 /* Set the 'back' pointer */
567 texImage
->TexObject
= tObj
;
568 texImage
->Level
= level
;
569 texImage
->Face
= face
;
574 * Allocate a texture image structure.
576 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
579 * \return a pointer to gl_texture_image struct with all fields initialized to
582 struct gl_texture_image
*
583 _mesa_new_texture_image( struct gl_context
*ctx
)
586 return CALLOC_STRUCT(gl_texture_image
);
591 * Free a gl_texture_image and associated data.
592 * This function is a fallback called via ctx->Driver.DeleteTextureImage().
594 * \param texImage texture image.
596 * Free the texture image structure and the associated image data.
599 _mesa_delete_texture_image(struct gl_context
*ctx
,
600 struct gl_texture_image
*texImage
)
602 /* Free texImage->Data and/or any other driver-specific texture
605 ASSERT(ctx
->Driver
.FreeTextureImageBuffer
);
606 ctx
->Driver
.FreeTextureImageBuffer( ctx
, texImage
);
611 * Test if a target is a proxy target.
613 * \param target texture target.
615 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
618 _mesa_is_proxy_texture(GLenum target
)
621 * NUM_TEXTURE_TARGETS should match number of terms below, except there's no
622 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
624 assert(NUM_TEXTURE_TARGETS
== 7 + 2);
626 return (target
== GL_PROXY_TEXTURE_1D
||
627 target
== GL_PROXY_TEXTURE_2D
||
628 target
== GL_PROXY_TEXTURE_3D
||
629 target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
630 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
||
631 target
== GL_PROXY_TEXTURE_1D_ARRAY_EXT
||
632 target
== GL_PROXY_TEXTURE_2D_ARRAY_EXT
);
637 * Return the proxy target which corresponds to the given texture target
640 get_proxy_target(GLenum target
)
644 case GL_PROXY_TEXTURE_1D
:
645 return GL_PROXY_TEXTURE_1D
;
647 case GL_PROXY_TEXTURE_2D
:
648 return GL_PROXY_TEXTURE_2D
;
650 case GL_PROXY_TEXTURE_3D
:
651 return GL_PROXY_TEXTURE_3D
;
652 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
653 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
654 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
655 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
656 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
657 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
658 case GL_TEXTURE_CUBE_MAP_ARB
:
659 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
660 return GL_PROXY_TEXTURE_CUBE_MAP_ARB
;
661 case GL_TEXTURE_RECTANGLE_NV
:
662 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
663 return GL_PROXY_TEXTURE_RECTANGLE_NV
;
664 case GL_TEXTURE_1D_ARRAY_EXT
:
665 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
666 return GL_PROXY_TEXTURE_1D_ARRAY_EXT
;
667 case GL_TEXTURE_2D_ARRAY_EXT
:
668 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
669 return GL_PROXY_TEXTURE_2D_ARRAY_EXT
;
671 _mesa_problem(NULL
, "unexpected target in get_proxy_target()");
678 * Get the texture object that corresponds to the target of the given
679 * texture unit. The target should have already been checked for validity.
681 * \param ctx GL context.
682 * \param texUnit texture unit.
683 * \param target texture target.
685 * \return pointer to the texture object on success, or NULL on failure.
687 struct gl_texture_object
*
688 _mesa_select_tex_object(struct gl_context
*ctx
,
689 const struct gl_texture_unit
*texUnit
,
692 const GLboolean arrayTex
= (ctx
->Extensions
.MESA_texture_array
||
693 ctx
->Extensions
.EXT_texture_array
);
697 return texUnit
->CurrentTex
[TEXTURE_1D_INDEX
];
698 case GL_PROXY_TEXTURE_1D
:
699 return ctx
->Texture
.ProxyTex
[TEXTURE_1D_INDEX
];
701 return texUnit
->CurrentTex
[TEXTURE_2D_INDEX
];
702 case GL_PROXY_TEXTURE_2D
:
703 return ctx
->Texture
.ProxyTex
[TEXTURE_2D_INDEX
];
705 return texUnit
->CurrentTex
[TEXTURE_3D_INDEX
];
706 case GL_PROXY_TEXTURE_3D
:
707 return ctx
->Texture
.ProxyTex
[TEXTURE_3D_INDEX
];
708 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
709 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
710 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
711 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
712 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
713 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
714 case GL_TEXTURE_CUBE_MAP_ARB
:
715 return ctx
->Extensions
.ARB_texture_cube_map
716 ? texUnit
->CurrentTex
[TEXTURE_CUBE_INDEX
] : NULL
;
717 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
718 return ctx
->Extensions
.ARB_texture_cube_map
719 ? ctx
->Texture
.ProxyTex
[TEXTURE_CUBE_INDEX
] : NULL
;
720 case GL_TEXTURE_RECTANGLE_NV
:
721 return ctx
->Extensions
.NV_texture_rectangle
722 ? texUnit
->CurrentTex
[TEXTURE_RECT_INDEX
] : NULL
;
723 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
724 return ctx
->Extensions
.NV_texture_rectangle
725 ? ctx
->Texture
.ProxyTex
[TEXTURE_RECT_INDEX
] : NULL
;
726 case GL_TEXTURE_1D_ARRAY_EXT
:
727 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
728 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
729 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
730 case GL_TEXTURE_2D_ARRAY_EXT
:
731 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
732 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
733 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
734 case GL_TEXTURE_BUFFER
:
735 return ctx
->Extensions
.ARB_texture_buffer_object
736 ? texUnit
->CurrentTex
[TEXTURE_BUFFER_INDEX
] : NULL
;
737 case GL_TEXTURE_EXTERNAL_OES
:
738 return ctx
->Extensions
.OES_EGL_image_external
739 ? texUnit
->CurrentTex
[TEXTURE_EXTERNAL_INDEX
] : NULL
;
741 _mesa_problem(NULL
, "bad target in _mesa_select_tex_object()");
748 * Return pointer to texture object for given target on current texture unit.
750 struct gl_texture_object
*
751 _mesa_get_current_tex_object(struct gl_context
*ctx
, GLenum target
)
753 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
754 return _mesa_select_tex_object(ctx
, texUnit
, target
);
759 * Get a texture image pointer from a texture object, given a texture
760 * target and mipmap level. The target and level parameters should
761 * have already been error-checked.
763 * \param ctx GL context.
764 * \param texObj texture unit.
765 * \param target texture target.
766 * \param level image level.
768 * \return pointer to the texture image structure, or NULL on failure.
770 struct gl_texture_image
*
771 _mesa_select_tex_image(struct gl_context
*ctx
,
772 const struct gl_texture_object
*texObj
,
773 GLenum target
, GLint level
)
775 const GLuint face
= _mesa_tex_target_to_face(target
);
779 ASSERT(level
< MAX_TEXTURE_LEVELS
);
781 return texObj
->Image
[face
][level
];
786 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
787 * it and install it. Only return NULL if passed a bad parameter or run
790 struct gl_texture_image
*
791 _mesa_get_tex_image(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
792 GLenum target
, GLint level
)
794 struct gl_texture_image
*texImage
;
799 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
801 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
803 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "texture image allocation");
807 _mesa_set_tex_image(texObj
, target
, level
, texImage
);
815 * Return pointer to the specified proxy texture image.
816 * Note that proxy textures are per-context, not per-texture unit.
817 * \return pointer to texture image or NULL if invalid target, invalid
818 * level, or out of memory.
820 struct gl_texture_image
*
821 _mesa_get_proxy_tex_image(struct gl_context
*ctx
, GLenum target
, GLint level
)
823 struct gl_texture_image
*texImage
;
830 case GL_PROXY_TEXTURE_1D
:
831 if (level
>= ctx
->Const
.MaxTextureLevels
)
833 texIndex
= TEXTURE_1D_INDEX
;
835 case GL_PROXY_TEXTURE_2D
:
836 if (level
>= ctx
->Const
.MaxTextureLevels
)
838 texIndex
= TEXTURE_2D_INDEX
;
840 case GL_PROXY_TEXTURE_3D
:
841 if (level
>= ctx
->Const
.Max3DTextureLevels
)
843 texIndex
= TEXTURE_3D_INDEX
;
845 case GL_PROXY_TEXTURE_CUBE_MAP
:
846 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
848 texIndex
= TEXTURE_CUBE_INDEX
;
850 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
853 texIndex
= TEXTURE_RECT_INDEX
;
855 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
856 if (level
>= ctx
->Const
.MaxTextureLevels
)
858 texIndex
= TEXTURE_1D_ARRAY_INDEX
;
860 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
861 if (level
>= ctx
->Const
.MaxTextureLevels
)
863 texIndex
= TEXTURE_2D_ARRAY_INDEX
;
869 texImage
= ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
];
871 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
873 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "proxy texture allocation");
876 ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
] = texImage
;
877 /* Set the 'back' pointer */
878 texImage
->TexObject
= ctx
->Texture
.ProxyTex
[texIndex
];
885 * Get the maximum number of allowed mipmap levels.
887 * \param ctx GL context.
888 * \param target texture target.
890 * \return the maximum number of allowed mipmap levels for the given
891 * texture target, or zero if passed a bad target.
896 _mesa_max_texture_levels(struct gl_context
*ctx
, GLenum target
)
900 case GL_PROXY_TEXTURE_1D
:
902 case GL_PROXY_TEXTURE_2D
:
903 return ctx
->Const
.MaxTextureLevels
;
905 case GL_PROXY_TEXTURE_3D
:
906 return ctx
->Const
.Max3DTextureLevels
;
907 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
908 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
909 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
910 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
911 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
912 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
913 case GL_TEXTURE_CUBE_MAP_ARB
:
914 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
915 return ctx
->Extensions
.ARB_texture_cube_map
916 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
917 case GL_TEXTURE_RECTANGLE_NV
:
918 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
919 return ctx
->Extensions
.NV_texture_rectangle
? 1 : 0;
920 case GL_TEXTURE_1D_ARRAY_EXT
:
921 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
922 case GL_TEXTURE_2D_ARRAY_EXT
:
923 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
924 return (ctx
->Extensions
.MESA_texture_array
||
925 ctx
->Extensions
.EXT_texture_array
)
926 ? ctx
->Const
.MaxTextureLevels
: 0;
927 case GL_TEXTURE_BUFFER
:
928 case GL_TEXTURE_EXTERNAL_OES
:
931 return 0; /* bad target */
937 * Return number of dimensions per mipmap level for the given texture target.
940 _mesa_get_texture_dimensions(GLenum target
)
944 case GL_PROXY_TEXTURE_1D
:
947 case GL_TEXTURE_RECTANGLE
:
948 case GL_TEXTURE_CUBE_MAP
:
949 case GL_PROXY_TEXTURE_2D
:
950 case GL_PROXY_TEXTURE_RECTANGLE
:
951 case GL_PROXY_TEXTURE_CUBE_MAP
:
952 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
953 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
954 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
955 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
956 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
957 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
958 case GL_TEXTURE_1D_ARRAY
:
959 case GL_PROXY_TEXTURE_1D_ARRAY
:
960 case GL_TEXTURE_EXTERNAL_OES
:
963 case GL_PROXY_TEXTURE_3D
:
964 case GL_TEXTURE_2D_ARRAY
:
965 case GL_PROXY_TEXTURE_2D_ARRAY
:
967 case GL_TEXTURE_BUFFER
:
970 _mesa_problem(NULL
, "invalid target 0x%x in get_texture_dimensions()",
979 #if 000 /* not used anymore */
981 * glTexImage[123]D can accept a NULL image pointer. In this case we
982 * create a texture image with unspecified image contents per the OpenGL
986 make_null_texture(GLint width
, GLint height
, GLint depth
, GLenum format
)
988 const GLint components
= _mesa_components_in_format(format
);
989 const GLint numPixels
= width
* height
* depth
;
990 GLubyte
*data
= (GLubyte
*) MALLOC(numPixels
* components
* sizeof(GLubyte
));
994 * Let's see if anyone finds this. If glTexImage2D() is called with
995 * a NULL image pointer then load the texture image with something
996 * interesting instead of leaving it indeterminate.
999 static const char message
[8][32] = {
1000 " X X XXXXX XXX X ",
1001 " XX XX X X X X X ",
1003 " X X XXXX XXX XXXXX ",
1006 " X X XXXXX XXX X X ",
1010 GLubyte
*imgPtr
= data
;
1012 for (h
= 0; h
< depth
; h
++) {
1013 for (i
= 0; i
< height
; i
++) {
1014 GLint srcRow
= 7 - (i
% 8);
1015 for (j
= 0; j
< width
; j
++) {
1016 GLint srcCol
= j
% 32;
1017 GLubyte texel
= (message
[srcRow
][srcCol
]=='X') ? 255 : 70;
1018 for (k
= 0; k
< components
; k
++) {
1034 * Set the size and format-related fields of a gl_texture_image struct
1035 * to zero. This is used when a proxy texture test fails.
1038 clear_teximage_fields(struct gl_texture_image
*img
)
1041 img
->_BaseFormat
= 0;
1042 img
->InternalFormat
= 0;
1051 img
->HeightLog2
= 0;
1053 img
->TexFormat
= MESA_FORMAT_NONE
;
1058 * Initialize basic fields of the gl_texture_image struct.
1060 * \param ctx GL context.
1061 * \param target texture target (GL_TEXTURE_1D, GL_TEXTURE_RECTANGLE, etc).
1062 * \param img texture image structure to be initialized.
1063 * \param width image width.
1064 * \param height image height.
1065 * \param depth image depth.
1066 * \param border image border.
1067 * \param internalFormat internal format.
1068 * \param format the actual hardware format (one of MESA_FORMAT_*)
1070 * Fills in the fields of \p img with the given information.
1071 * Note: width, height and depth include the border.
1074 _mesa_init_teximage_fields(struct gl_context
*ctx
, GLenum target
,
1075 struct gl_texture_image
*img
,
1076 GLsizei width
, GLsizei height
, GLsizei depth
,
1077 GLint border
, GLenum internalFormat
,
1082 ASSERT(height
>= 0);
1085 img
->_BaseFormat
= _mesa_base_tex_format( ctx
, internalFormat
);
1086 ASSERT(img
->_BaseFormat
> 0);
1087 img
->InternalFormat
= internalFormat
;
1088 img
->Border
= border
;
1090 img
->Height
= height
;
1093 img
->Width2
= width
- 2 * border
; /* == 1 << img->WidthLog2; */
1094 img
->WidthLog2
= _mesa_logbase2(img
->Width2
);
1096 if (height
== 1) { /* 1-D texture */
1098 img
->HeightLog2
= 0;
1101 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1102 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1105 if (depth
== 1) { /* 2-D texture */
1110 img
->Depth2
= depth
- 2 * border
; /* == 1 << img->DepthLog2; */
1111 img
->DepthLog2
= _mesa_logbase2(img
->Depth2
);
1114 img
->MaxLog2
= MAX2(img
->WidthLog2
, img
->HeightLog2
);
1116 img
->TexFormat
= format
;
1121 * Free and clear fields of the gl_texture_image struct.
1123 * \param ctx GL context.
1124 * \param texImage texture image structure to be cleared.
1126 * After the call, \p texImage will have no data associated with it. Its
1127 * fields are cleared so that its parent object will test incomplete.
1130 _mesa_clear_texture_image(struct gl_context
*ctx
,
1131 struct gl_texture_image
*texImage
)
1133 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
1134 clear_teximage_fields(texImage
);
1139 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1140 * level, width, height and depth against the ctx->Const limits for textures.
1142 * A hardware driver might override this function if, for example, the
1143 * max 3D texture size is 512x512x64 (i.e. not a cube).
1145 * Note that width, height, depth == 0 is not an error. However, a
1146 * texture with zero width/height/depth will be considered "incomplete"
1147 * and texturing will effectively be disabled.
1149 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1150 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1151 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1152 * \param level as passed to glTexImage
1153 * \param internalFormat as passed to glTexImage
1154 * \param format as passed to glTexImage
1155 * \param type as passed to glTexImage
1156 * \param width as passed to glTexImage
1157 * \param height as passed to glTexImage
1158 * \param depth as passed to glTexImage
1159 * \param border as passed to glTexImage
1160 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1163 _mesa_test_proxy_teximage(struct gl_context
*ctx
, GLenum target
, GLint level
,
1164 GLint internalFormat
, GLenum format
, GLenum type
,
1165 GLint width
, GLint height
, GLint depth
, GLint border
)
1169 (void) internalFormat
;
1174 case GL_PROXY_TEXTURE_1D
:
1175 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1176 if (width
< 2 * border
|| width
> 2 + maxSize
)
1178 if (level
>= ctx
->Const
.MaxTextureLevels
)
1180 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1181 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1186 case GL_PROXY_TEXTURE_2D
:
1187 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1188 if (width
< 2 * border
|| width
> 2 + maxSize
)
1190 if (height
< 2 * border
|| height
> 2 + maxSize
)
1192 if (level
>= ctx
->Const
.MaxTextureLevels
)
1194 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1195 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1197 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1202 case GL_PROXY_TEXTURE_3D
:
1203 maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
1204 if (width
< 2 * border
|| width
> 2 + maxSize
)
1206 if (height
< 2 * border
|| height
> 2 + maxSize
)
1208 if (depth
< 2 * border
|| depth
> 2 + maxSize
)
1210 if (level
>= ctx
->Const
.Max3DTextureLevels
)
1212 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1213 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1215 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1217 if (depth
> 0 && !_mesa_is_pow_two(depth
- 2 * border
))
1222 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1223 maxSize
= ctx
->Const
.MaxTextureRectSize
;
1224 if (width
< 0 || width
> maxSize
)
1226 if (height
< 0 || height
> maxSize
)
1232 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
1233 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1234 if (width
< 2 * border
|| width
> 2 + maxSize
)
1236 if (height
< 2 * border
|| height
> 2 + maxSize
)
1238 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
1240 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1241 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1243 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1248 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1249 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1250 if (width
< 2 * border
|| width
> 2 + maxSize
)
1252 if (height
< 1 || height
> ctx
->Const
.MaxArrayTextureLayers
)
1254 if (level
>= ctx
->Const
.MaxTextureLevels
)
1256 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1257 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1262 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1263 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1264 if (width
< 2 * border
|| width
> 2 + maxSize
)
1266 if (height
< 2 * border
|| height
> 2 + maxSize
)
1268 if (depth
< 1 || depth
> ctx
->Const
.MaxArrayTextureLayers
)
1270 if (level
>= ctx
->Const
.MaxTextureLevels
)
1272 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1273 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1275 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1281 _mesa_problem(ctx
, "Invalid target in _mesa_test_proxy_teximage");
1288 * Check if the memory used by the texture would exceed the driver's limit.
1289 * This lets us support a max 3D texture size of 8K (for example) but
1290 * prevents allocating a full 8K x 8K x 8K texture.
1291 * XXX this could be rolled into the proxy texture size test (above) but
1292 * we don't have the actual texture internal format at that point.
1295 legal_texture_size(struct gl_context
*ctx
, gl_format format
,
1296 GLint width
, GLint height
, GLint depth
)
1298 uint64_t bytes
= _mesa_format_image_size64(format
, width
, height
, depth
);
1299 uint64_t mbytes
= bytes
/ (1024 * 1024); /* convert to MB */
1300 return mbytes
<= (uint64_t) ctx
->Const
.MaxTextureMbytes
;
1305 * Return true if the format is only valid for glCompressedTexImage.
1308 compressedteximage_only_format(const struct gl_context
*ctx
, GLenum format
)
1311 case GL_ETC1_RGB8_OES
:
1320 * Helper function to determine whether a target and specific compression
1321 * format are supported.
1324 target_can_be_compressed(const struct gl_context
*ctx
, GLenum target
,
1327 (void) intFormat
; /* not used yet */
1331 case GL_PROXY_TEXTURE_2D
:
1332 return GL_TRUE
; /* true for any compressed format so far */
1333 case GL_PROXY_TEXTURE_CUBE_MAP
:
1334 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1335 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1336 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1337 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1338 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1339 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1340 return ctx
->Extensions
.ARB_texture_cube_map
;
1341 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1342 case GL_TEXTURE_2D_ARRAY_EXT
:
1343 return (ctx
->Extensions
.MESA_texture_array
||
1344 ctx
->Extensions
.EXT_texture_array
);
1352 * Check if the given texture target value is legal for a
1353 * glTexImage1/2/3D call.
1356 legal_teximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1362 case GL_PROXY_TEXTURE_1D
:
1370 case GL_PROXY_TEXTURE_2D
:
1372 case GL_PROXY_TEXTURE_CUBE_MAP
:
1373 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1374 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1375 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1376 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1377 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1378 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1379 return ctx
->Extensions
.ARB_texture_cube_map
;
1380 case GL_TEXTURE_RECTANGLE_NV
:
1381 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1382 return ctx
->Extensions
.NV_texture_rectangle
;
1383 case GL_TEXTURE_1D_ARRAY_EXT
:
1384 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1385 return (ctx
->Extensions
.MESA_texture_array
||
1386 ctx
->Extensions
.EXT_texture_array
);
1393 case GL_PROXY_TEXTURE_3D
:
1395 case GL_TEXTURE_2D_ARRAY_EXT
:
1396 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1397 return (ctx
->Extensions
.MESA_texture_array
||
1398 ctx
->Extensions
.EXT_texture_array
);
1403 _mesa_problem(ctx
, "invalid dims=%u in legal_teximage_target()", dims
);
1410 * Check if the given texture target value is legal for a
1411 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1412 * The difference compared to legal_teximage_target() above is that
1413 * proxy targets are not supported.
1416 legal_texsubimage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1420 return target
== GL_TEXTURE_1D
;
1425 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1426 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1427 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1428 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1429 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1430 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1431 return ctx
->Extensions
.ARB_texture_cube_map
;
1432 case GL_TEXTURE_RECTANGLE_NV
:
1433 return ctx
->Extensions
.NV_texture_rectangle
;
1434 case GL_TEXTURE_1D_ARRAY_EXT
:
1435 return (ctx
->Extensions
.MESA_texture_array
||
1436 ctx
->Extensions
.EXT_texture_array
);
1444 case GL_TEXTURE_2D_ARRAY_EXT
:
1445 return (ctx
->Extensions
.MESA_texture_array
||
1446 ctx
->Extensions
.EXT_texture_array
);
1451 _mesa_problem(ctx
, "invalid dims=%u in legal_texsubimage_target()",
1459 * Helper function to determine if a texture object is mutable (in terms
1460 * of GL_ARB_texture_storage).
1463 mutable_tex_object(struct gl_context
*ctx
, GLenum target
)
1465 if (ctx
->Extensions
.ARB_texture_storage
) {
1466 struct gl_texture_object
*texObj
=
1467 _mesa_get_current_tex_object(ctx
, target
);
1468 return !texObj
->Immutable
;
1476 * Test the glTexImage[123]D() parameters for errors.
1478 * \param ctx GL context.
1479 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1480 * \param target texture target given by the user.
1481 * \param level image level given by the user.
1482 * \param internalFormat internal format given by the user.
1483 * \param format pixel data format given by the user.
1484 * \param type pixel data type given by the user.
1485 * \param width image width given by the user.
1486 * \param height image height given by the user.
1487 * \param depth image depth given by the user.
1488 * \param border image border given by the user.
1490 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1492 * Verifies each of the parameters against the constants specified in
1493 * __struct gl_contextRec::Const and the supported extensions, and according
1494 * to the OpenGL specification.
1497 texture_error_check( struct gl_context
*ctx
,
1498 GLuint dimensions
, GLenum target
,
1499 GLint level
, GLint internalFormat
,
1500 GLenum format
, GLenum type
,
1501 GLint width
, GLint height
,
1502 GLint depth
, GLint border
)
1504 const GLenum proxyTarget
= get_proxy_target(target
);
1505 const GLboolean isProxy
= target
== proxyTarget
;
1506 GLboolean sizeOK
= GL_TRUE
;
1507 GLboolean colorFormat
;
1509 /* Even though there are no color-index textures, we still have to support
1510 * uploading color-index data and remapping it to RGB via the
1511 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1513 const GLboolean indexFormat
= (format
== GL_COLOR_INDEX
);
1515 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1516 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1518 _mesa_error(ctx
, GL_INVALID_VALUE
,
1519 "glTexImage%dD(level=%d)", dimensions
, level
);
1525 if (border
< 0 || border
> 1 ||
1526 ((target
== GL_TEXTURE_RECTANGLE_NV
||
1527 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1529 _mesa_error(ctx
, GL_INVALID_VALUE
,
1530 "glTexImage%dD(border=%d)", dimensions
, border
);
1535 if (width
< 0 || height
< 0 || depth
< 0) {
1537 _mesa_error(ctx
, GL_INVALID_VALUE
,
1538 "glTexImage%dD(width, height or depth < 0)", dimensions
);
1543 /* Do this simple check before calling the TestProxyTexImage() function */
1544 if (proxyTarget
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
) {
1545 sizeOK
= (width
== height
);
1549 * Use the proxy texture driver hook to see if the size/level/etc are
1552 sizeOK
= sizeOK
&& ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
1553 internalFormat
, format
,
1554 type
, width
, height
,
1558 _mesa_error(ctx
, GL_INVALID_VALUE
,
1559 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1560 dimensions
, level
, width
, height
, depth
);
1565 /* Check internalFormat */
1566 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1568 _mesa_error(ctx
, GL_INVALID_VALUE
,
1569 "glTexImage%dD(internalFormat=%s)",
1570 dimensions
, _mesa_lookup_enum_by_nr(internalFormat
));
1575 /* Check incoming image format and type */
1576 if (!_mesa_is_legal_format_and_type(ctx
, format
, type
)) {
1577 /* Normally, GL_INVALID_OPERATION is generated by a format/type
1578 * mismatch (see the 1.2 spec page 94, sec 3.6.4.). But with the
1579 * GL_EXT_texture_integer extension, some combinations should generate
1580 * GL_INVALID_ENUM instead (grr!).
1583 GLenum error
= _mesa_is_integer_format(format
)
1584 ? GL_INVALID_ENUM
: GL_INVALID_OPERATION
;
1585 _mesa_error(ctx
, error
,
1586 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1587 dimensions
, format
, type
);
1592 /* make sure internal format and format basically agree */
1593 colorFormat
= _mesa_is_color_format(format
);
1594 if ((_mesa_is_color_format(internalFormat
) && !colorFormat
&& !indexFormat
) ||
1595 (_mesa_is_depth_format(internalFormat
) != _mesa_is_depth_format(format
)) ||
1596 (_mesa_is_ycbcr_format(internalFormat
) != _mesa_is_ycbcr_format(format
)) ||
1597 (_mesa_is_depthstencil_format(internalFormat
) != _mesa_is_depthstencil_format(format
)) ||
1598 (_mesa_is_dudv_format(internalFormat
) != _mesa_is_dudv_format(format
))) {
1600 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1601 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1602 dimensions
, internalFormat
, format
);
1606 /* additional checks for ycbcr textures */
1607 if (internalFormat
== GL_YCBCR_MESA
) {
1608 ASSERT(ctx
->Extensions
.MESA_ycbcr_texture
);
1609 if (type
!= GL_UNSIGNED_SHORT_8_8_MESA
&&
1610 type
!= GL_UNSIGNED_SHORT_8_8_REV_MESA
) {
1612 _mesa_snprintf(message
, sizeof(message
),
1613 "glTexImage%dD(format/type YCBCR mismatch", dimensions
);
1614 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", message
);
1615 return GL_TRUE
; /* error */
1617 if (target
!= GL_TEXTURE_2D
&&
1618 target
!= GL_PROXY_TEXTURE_2D
&&
1619 target
!= GL_TEXTURE_RECTANGLE_NV
&&
1620 target
!= GL_PROXY_TEXTURE_RECTANGLE_NV
) {
1622 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexImage(target)");
1628 _mesa_snprintf(message
, sizeof(message
),
1629 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1630 dimensions
, border
);
1631 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", message
);
1637 /* additional checks for depth textures */
1638 if (_mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_COMPONENT
) {
1639 /* Only 1D, 2D, rect and array textures supported, not 3D or cubes */
1640 if (target
!= GL_TEXTURE_1D
&&
1641 target
!= GL_PROXY_TEXTURE_1D
&&
1642 target
!= GL_TEXTURE_2D
&&
1643 target
!= GL_PROXY_TEXTURE_2D
&&
1644 target
!= GL_TEXTURE_1D_ARRAY
&&
1645 target
!= GL_PROXY_TEXTURE_1D_ARRAY
&&
1646 target
!= GL_TEXTURE_2D_ARRAY
&&
1647 target
!= GL_PROXY_TEXTURE_2D_ARRAY
&&
1648 target
!= GL_TEXTURE_RECTANGLE_ARB
&&
1649 target
!= GL_PROXY_TEXTURE_RECTANGLE_ARB
) {
1651 _mesa_error(ctx
, GL_INVALID_ENUM
,
1652 "glTexImage(target/internalFormat)");
1657 /* additional checks for compressed textures */
1658 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
1659 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1661 _mesa_error(ctx
, GL_INVALID_ENUM
,
1662 "glTexImage%dD(target)", dimensions
);
1665 if (compressedteximage_only_format(ctx
, internalFormat
)) {
1666 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1667 "glTexImage%dD(no compression for format)", dimensions
);
1672 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1673 "glTexImage%dD(border!=0)", dimensions
);
1679 /* additional checks for integer textures */
1680 if (ctx
->Extensions
.EXT_texture_integer
&&
1681 (_mesa_is_integer_format(format
) !=
1682 _mesa_is_integer_format(internalFormat
))) {
1684 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1685 "glTexImage%dD(integer/non-integer format mismatch)",
1691 if (!mutable_tex_object(ctx
, target
)) {
1692 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1693 "glTexImage%dD(immutable texture)", dimensions
);
1697 /* if we get here, the parameters are OK */
1703 * Test glTexSubImage[123]D() parameters for errors.
1705 * \param ctx GL context.
1706 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1707 * \param target texture target given by the user.
1708 * \param level image level given by the user.
1709 * \param xoffset sub-image x offset given by the user.
1710 * \param yoffset sub-image y offset given by the user.
1711 * \param zoffset sub-image z offset given by the user.
1712 * \param format pixel data format given by the user.
1713 * \param type pixel data type given by the user.
1714 * \param width image width given by the user.
1715 * \param height image height given by the user.
1716 * \param depth image depth given by the user.
1718 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1720 * Verifies each of the parameters against the constants specified in
1721 * __struct gl_contextRec::Const and the supported extensions, and according
1722 * to the OpenGL specification.
1725 subtexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
1726 GLenum target
, GLint level
,
1727 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1728 GLint width
, GLint height
, GLint depth
,
1729 GLenum format
, GLenum type
)
1731 /* Basic level check */
1732 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1733 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage2D(level=%d)", level
);
1737 /* Check for negative sizes */
1739 _mesa_error(ctx
, GL_INVALID_VALUE
,
1740 "glTexSubImage%dD(width=%d)", dimensions
, width
);
1743 if (height
< 0 && dimensions
> 1) {
1744 _mesa_error(ctx
, GL_INVALID_VALUE
,
1745 "glTexSubImage%dD(height=%d)", dimensions
, height
);
1748 if (depth
< 0 && dimensions
> 2) {
1749 _mesa_error(ctx
, GL_INVALID_VALUE
,
1750 "glTexSubImage%dD(depth=%d)", dimensions
, depth
);
1754 if (!_mesa_is_legal_format_and_type(ctx
, format
, type
)) {
1755 /* As with the glTexImage2D check above, the error code here
1756 * depends on texture integer.
1758 GLenum error
= _mesa_is_integer_format(format
)
1759 ? GL_INVALID_OPERATION
: GL_INVALID_ENUM
;
1760 _mesa_error(ctx
, error
,
1761 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
1762 dimensions
, format
, type
);
1771 * Do second part of glTexSubImage which depends on the destination texture.
1772 * \return GL_TRUE if error recorded, GL_FALSE otherwise
1775 subtexture_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
1776 GLenum target
, GLint level
,
1777 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1778 GLint width
, GLint height
, GLint depth
,
1779 GLenum format
, GLenum type
,
1780 const struct gl_texture_image
*destTex
)
1783 /* undefined image level */
1784 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexSubImage%dD", dimensions
);
1788 if (xoffset
< -((GLint
)destTex
->Border
)) {
1789 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset)",
1793 if (xoffset
+ width
> (GLint
) (destTex
->Width
+ destTex
->Border
)) {
1794 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset+width)",
1798 if (dimensions
> 1) {
1799 if (yoffset
< -((GLint
)destTex
->Border
)) {
1800 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset)",
1804 if (yoffset
+ height
> (GLint
) (destTex
->Height
+ destTex
->Border
)) {
1805 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset+height)",
1810 if (dimensions
> 2) {
1811 if (zoffset
< -((GLint
)destTex
->Border
)) {
1812 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset)");
1815 if (zoffset
+ depth
> (GLint
) (destTex
->Depth
+ destTex
->Border
)) {
1816 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset+depth)");
1821 if (_mesa_is_format_compressed(destTex
->TexFormat
)) {
1824 if (compressedteximage_only_format(ctx
, destTex
->InternalFormat
)) {
1825 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1826 "glTexSubImage%dD(no compression for format)", dimensions
);
1830 /* do tests which depend on compression block size */
1831 _mesa_get_format_block_size(destTex
->TexFormat
, &bw
, &bh
);
1833 /* offset must be multiple of block size */
1834 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0)) {
1835 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1836 "glTexSubImage%dD(xoffset = %d, yoffset = %d)",
1837 dimensions
, xoffset
, yoffset
);
1840 /* size must be multiple of bw by bh or equal to whole texture size */
1841 if ((width
% bw
!= 0) && (GLuint
) width
!= destTex
->Width
) {
1842 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1843 "glTexSubImage%dD(width = %d)", dimensions
, width
);
1846 if ((height
% bh
!= 0) && (GLuint
) height
!= destTex
->Height
) {
1847 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1848 "glTexSubImage%dD(height = %d)", dimensions
, height
);
1858 * Test glCopyTexImage[12]D() parameters for errors.
1860 * \param ctx GL context.
1861 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1862 * \param target texture target given by the user.
1863 * \param level image level given by the user.
1864 * \param internalFormat internal format given by the user.
1865 * \param width image width given by the user.
1866 * \param height image height given by the user.
1867 * \param border texture border.
1869 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1871 * Verifies each of the parameters against the constants specified in
1872 * __struct gl_contextRec::Const and the supported extensions, and according
1873 * to the OpenGL specification.
1876 copytexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
1877 GLenum target
, GLint level
, GLint internalFormat
,
1878 GLint width
, GLint height
, GLint border
)
1880 const GLenum proxyTarget
= get_proxy_target(target
);
1881 const GLenum type
= GL_FLOAT
;
1886 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
1887 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexImage%uD(target=%s)",
1888 dimensions
, _mesa_lookup_enum_by_nr(target
));
1892 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1893 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1894 _mesa_error(ctx
, GL_INVALID_VALUE
,
1895 "glCopyTexImage%dD(level=%d)", dimensions
, level
);
1899 /* Check that the source buffer is complete */
1900 if (ctx
->ReadBuffer
->Name
) {
1901 if (ctx
->ReadBuffer
->_Status
== 0) {
1902 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
1904 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1905 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
1906 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
1912 if (border
< 0 || border
> 1 ||
1913 ((target
== GL_TEXTURE_RECTANGLE_NV
||
1914 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1918 baseFormat
= _mesa_base_tex_format(ctx
, internalFormat
);
1919 if (baseFormat
< 0) {
1920 _mesa_error(ctx
, GL_INVALID_VALUE
,
1921 "glCopyTexImage%dD(internalFormat)", dimensions
);
1925 if (!_mesa_source_buffer_exists(ctx
, baseFormat
)) {
1926 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1927 "glCopyTexImage%dD(missing readbuffer)", dimensions
);
1931 /* Do size, level checking */
1932 sizeOK
= (proxyTarget
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
)
1933 ? (width
== height
) : 1;
1935 sizeOK
= sizeOK
&& ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
1936 internalFormat
, baseFormat
,
1937 type
, width
, height
,
1941 if (dimensions
== 1) {
1942 _mesa_error(ctx
, GL_INVALID_VALUE
,
1943 "glCopyTexImage1D(width=%d)", width
);
1946 ASSERT(dimensions
== 2);
1947 _mesa_error(ctx
, GL_INVALID_VALUE
,
1948 "glCopyTexImage2D(width=%d, height=%d)", width
, height
);
1953 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
1954 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1955 _mesa_error(ctx
, GL_INVALID_ENUM
,
1956 "glCopyTexImage%dD(target)", dimensions
);
1959 if (compressedteximage_only_format(ctx
, internalFormat
)) {
1960 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1961 "glCopyTexImage%dD(no compression for format)", dimensions
);
1965 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1966 "glCopyTexImage%dD(border!=0)", dimensions
);
1971 if (!mutable_tex_object(ctx
, target
)) {
1972 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1973 "glCopyTexImage%dD(immutable texture)", dimensions
);
1977 /* if we get here, the parameters are OK */
1983 * Test glCopyTexSubImage[12]D() parameters for errors.
1984 * Note that this is the first part of error checking.
1985 * See also copytexsubimage_error_check2() below for the second part.
1987 * \param ctx GL context.
1988 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1989 * \param target texture target given by the user.
1990 * \param level image level given by the user.
1992 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1995 copytexsubimage_error_check1( struct gl_context
*ctx
, GLuint dimensions
,
1996 GLenum target
, GLint level
)
1998 /* Check that the source buffer is complete */
1999 if (ctx
->ReadBuffer
->Name
) {
2000 if (ctx
->ReadBuffer
->_Status
== 0) {
2001 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2003 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2004 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2005 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2010 /* check target (proxies not allowed) */
2011 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2012 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexSubImage%uD(target=%s)",
2013 dimensions
, _mesa_lookup_enum_by_nr(target
));
2018 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
2019 _mesa_error(ctx
, GL_INVALID_VALUE
,
2020 "glCopyTexSubImage%dD(level=%d)", dimensions
, level
);
2029 * Second part of error checking for glCopyTexSubImage[12]D().
2030 * \param xoffset sub-image x offset given by the user.
2031 * \param yoffset sub-image y offset given by the user.
2032 * \param zoffset sub-image z offset given by the user.
2033 * \param width image width given by the user.
2034 * \param height image height given by the user.
2037 copytexsubimage_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
2038 GLenum target
, GLint level
,
2039 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2040 GLsizei width
, GLsizei height
,
2041 const struct gl_texture_image
*teximage
)
2043 /* check that dest tex image exists */
2045 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2046 "glCopyTexSubImage%dD(undefined texture level: %d)",
2053 _mesa_error(ctx
, GL_INVALID_VALUE
,
2054 "glCopyTexSubImage%dD(width=%d)", dimensions
, width
);
2057 if (dimensions
> 1 && height
< 0) {
2058 _mesa_error(ctx
, GL_INVALID_VALUE
,
2059 "glCopyTexSubImage%dD(height=%d)", dimensions
, height
);
2063 /* check x/y offsets */
2064 if (xoffset
< -((GLint
)teximage
->Border
)) {
2065 _mesa_error(ctx
, GL_INVALID_VALUE
,
2066 "glCopyTexSubImage%dD(xoffset=%d)", dimensions
, xoffset
);
2069 if (xoffset
+ width
> (GLint
) (teximage
->Width
+ teximage
->Border
)) {
2070 _mesa_error(ctx
, GL_INVALID_VALUE
,
2071 "glCopyTexSubImage%dD(xoffset+width)", dimensions
);
2074 if (dimensions
> 1) {
2075 if (yoffset
< -((GLint
)teximage
->Border
)) {
2076 _mesa_error(ctx
, GL_INVALID_VALUE
,
2077 "glCopyTexSubImage%dD(yoffset=%d)", dimensions
, yoffset
);
2080 /* NOTE: we're adding the border here, not subtracting! */
2081 if (yoffset
+ height
> (GLint
) (teximage
->Height
+ teximage
->Border
)) {
2082 _mesa_error(ctx
, GL_INVALID_VALUE
,
2083 "glCopyTexSubImage%dD(yoffset+height)", dimensions
);
2088 /* check z offset */
2089 if (dimensions
> 2) {
2090 if (zoffset
< -((GLint
)teximage
->Border
)) {
2091 _mesa_error(ctx
, GL_INVALID_VALUE
,
2092 "glCopyTexSubImage%dD(zoffset)", dimensions
);
2095 if (zoffset
> (GLint
) (teximage
->Depth
+ teximage
->Border
)) {
2096 _mesa_error(ctx
, GL_INVALID_VALUE
,
2097 "glCopyTexSubImage%dD(zoffset+depth)", dimensions
);
2102 if (_mesa_is_format_compressed(teximage
->TexFormat
)) {
2103 if (compressedteximage_only_format(ctx
, teximage
->InternalFormat
)) {
2104 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2105 "glCopyTexSubImage%dD(no compression for format)", dimensions
);
2108 /* offset must be multiple of 4 */
2109 if ((xoffset
& 3) || (yoffset
& 3)) {
2110 _mesa_error(ctx
, GL_INVALID_VALUE
,
2111 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions
);
2114 /* size must be multiple of 4 */
2115 if ((width
& 3) != 0 && (GLuint
) width
!= teximage
->Width
) {
2116 _mesa_error(ctx
, GL_INVALID_VALUE
,
2117 "glCopyTexSubImage%dD(width)", dimensions
);
2120 if ((height
& 3) != 0 && (GLuint
) height
!= teximage
->Height
) {
2121 _mesa_error(ctx
, GL_INVALID_VALUE
,
2122 "glCopyTexSubImage%dD(height)", dimensions
);
2127 if (teximage
->InternalFormat
== GL_YCBCR_MESA
) {
2128 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glCopyTexSubImage2D");
2132 if (!_mesa_source_buffer_exists(ctx
, teximage
->_BaseFormat
)) {
2133 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2134 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2135 dimensions
, teximage
->_BaseFormat
);
2139 /* If copying into an integer texture, the source buffer must also be
2142 if (_mesa_is_format_integer_color(teximage
->TexFormat
)) {
2143 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2144 if (!_mesa_is_format_integer_color(rb
->Format
)) {
2145 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2146 "glCopyTexSubImage%dD(source buffer is not integer format)",
2152 /* if we get here, the parameters are OK */
2157 /** Callback info for walking over FBO hash table */
2160 struct gl_context
*ctx
;
2161 struct gl_texture_object
*texObj
;
2167 * Check render to texture callback. Called from _mesa_HashWalk().
2170 check_rtt_cb(GLuint key
, void *data
, void *userData
)
2172 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2173 const struct cb_info
*info
= (struct cb_info
*) userData
;
2174 struct gl_context
*ctx
= info
->ctx
;
2175 const struct gl_texture_object
*texObj
= info
->texObj
;
2176 const GLuint level
= info
->level
, face
= info
->face
;
2178 /* If this is a user-created FBO */
2181 /* check if any of the FBO's attachments point to 'texObj' */
2182 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2183 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2184 if (att
->Type
== GL_TEXTURE
&&
2185 att
->Texture
== texObj
&&
2186 att
->TextureLevel
== level
&&
2187 att
->CubeMapFace
== face
) {
2188 ASSERT(_mesa_get_attachment_teximage(att
));
2189 /* Tell driver about the new renderbuffer texture */
2190 ctx
->Driver
.RenderTexture(ctx
, ctx
->DrawBuffer
, att
);
2191 /* Mark fb status as indeterminate to force re-validation */
2200 * When a texture image is specified we have to check if it's bound to
2201 * any framebuffer objects (render to texture) in order to detect changes
2202 * in size or format since that effects FBO completeness.
2203 * Any FBOs rendering into the texture must be re-validated.
2206 update_fbo_texture(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
2207 GLuint face
, GLuint level
)
2209 /* Only check this texture if it's been marked as RenderToTexture */
2210 if (texObj
->_RenderToTexture
) {
2211 struct cb_info info
;
2213 info
.texObj
= texObj
;
2216 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, check_rtt_cb
, &info
);
2222 * If the texture object's GenerateMipmap flag is set and we've
2223 * changed the texture base level image, regenerate the rest of the
2224 * mipmap levels now.
2227 check_gen_mipmap(struct gl_context
*ctx
, GLenum target
,
2228 struct gl_texture_object
*texObj
, GLint level
)
2230 ASSERT(target
!= GL_TEXTURE_CUBE_MAP
);
2231 if (texObj
->GenerateMipmap
&&
2232 level
== texObj
->BaseLevel
&&
2233 level
< texObj
->MaxLevel
) {
2234 ASSERT(ctx
->Driver
.GenerateMipmap
);
2235 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2240 /** Debug helper: override the user-requested internal format */
2242 override_internal_format(GLenum internalFormat
, GLint width
, GLint height
)
2245 if (internalFormat
== GL_RGBA16F_ARB
||
2246 internalFormat
== GL_RGBA32F_ARB
) {
2247 printf("Convert rgba float tex to int %d x %d\n", width
, height
);
2250 else if (internalFormat
== GL_RGB16F_ARB
||
2251 internalFormat
== GL_RGB32F_ARB
) {
2252 printf("Convert rgb float tex to int %d x %d\n", width
, height
);
2255 else if (internalFormat
== GL_LUMINANCE_ALPHA16F_ARB
||
2256 internalFormat
== GL_LUMINANCE_ALPHA32F_ARB
) {
2257 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2258 return GL_LUMINANCE_ALPHA
;
2260 else if (internalFormat
== GL_LUMINANCE16F_ARB
||
2261 internalFormat
== GL_LUMINANCE32F_ARB
) {
2262 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2263 return GL_LUMINANCE
;
2265 else if (internalFormat
== GL_ALPHA16F_ARB
||
2266 internalFormat
== GL_ALPHA32F_ARB
) {
2267 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2271 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2272 internalFormat = GL_RGBA;
2276 return internalFormat
;
2279 return internalFormat
;
2285 * Choose the actual hardware format for a texture image.
2286 * Try to use the same format as the previous image level when possible.
2287 * Otherwise, ask the driver for the best format.
2288 * It's important to try to choose a consistant format for all levels
2289 * for efficient texture memory layout/allocation. In particular, this
2290 * comes up during automatic mipmap generation.
2293 _mesa_choose_texture_format(struct gl_context
*ctx
,
2294 struct gl_texture_object
*texObj
,
2295 GLenum target
, GLint level
,
2296 GLenum internalFormat
, GLenum format
, GLenum type
)
2300 /* see if we've already chosen a format for the previous level */
2302 struct gl_texture_image
*prevImage
=
2303 _mesa_select_tex_image(ctx
, texObj
, target
, level
- 1);
2304 /* See if the prev level is defined and has an internal format which
2305 * matches the new internal format.
2308 prevImage
->Width
> 0 &&
2309 prevImage
->InternalFormat
== internalFormat
) {
2310 /* use the same format */
2311 ASSERT(prevImage
->TexFormat
!= MESA_FORMAT_NONE
);
2312 return prevImage
->TexFormat
;
2316 /* choose format from scratch */
2317 f
= ctx
->Driver
.ChooseTextureFormat(ctx
, internalFormat
, format
, type
);
2318 ASSERT(f
!= MESA_FORMAT_NONE
);
2323 * Adjust pixel unpack params and image dimensions to strip off the
2326 * Gallium and intel don't support texture borders. They've seldem been used
2327 * and seldom been implemented correctly anyway.
2329 * \param unpackNew returns the new pixel unpack parameters
2332 strip_texture_border(GLint
*border
,
2333 GLint
*width
, GLint
*height
, GLint
*depth
,
2334 const struct gl_pixelstore_attrib
*unpack
,
2335 struct gl_pixelstore_attrib
*unpackNew
)
2337 assert(*border
> 0); /* sanity check */
2339 *unpackNew
= *unpack
;
2341 if (unpackNew
->RowLength
== 0)
2342 unpackNew
->RowLength
= *width
;
2344 if (depth
&& unpackNew
->ImageHeight
== 0)
2345 unpackNew
->ImageHeight
= *height
;
2347 unpackNew
->SkipPixels
+= *border
;
2349 unpackNew
->SkipRows
+= *border
;
2351 unpackNew
->SkipImages
+= *border
;
2353 assert(*width
>= 3);
2354 *width
= *width
- 2 * *border
;
2355 if (height
&& *height
>= 3)
2356 *height
= *height
- 2 * *border
;
2357 if (depth
&& *depth
>= 3)
2358 *depth
= *depth
- 2 * *border
;
2363 * Common code to implement all the glTexImage1D/2D/3D functions.
2366 teximage(struct gl_context
*ctx
, GLuint dims
,
2367 GLenum target
, GLint level
, GLint internalFormat
,
2368 GLsizei width
, GLsizei height
, GLsizei depth
,
2369 GLint border
, GLenum format
, GLenum type
,
2370 const GLvoid
*pixels
)
2373 struct gl_pixelstore_attrib unpack_no_border
;
2374 const struct gl_pixelstore_attrib
*unpack
= &ctx
->Unpack
;
2376 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2378 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2379 _mesa_debug(ctx
, "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2381 _mesa_lookup_enum_by_nr(target
), level
,
2382 _mesa_lookup_enum_by_nr(internalFormat
),
2383 width
, height
, depth
, border
,
2384 _mesa_lookup_enum_by_nr(format
),
2385 _mesa_lookup_enum_by_nr(type
), pixels
);
2387 internalFormat
= override_internal_format(internalFormat
, width
, height
);
2389 /* target error checking */
2390 if (!legal_teximage_target(ctx
, dims
, target
)) {
2391 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexImage%uD(target=%s)",
2392 dims
, _mesa_lookup_enum_by_nr(target
));
2396 /* general error checking */
2397 error
= texture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2398 format
, type
, width
, height
, depth
, border
);
2400 if (_mesa_is_proxy_texture(target
)) {
2401 /* Proxy texture: just clear or set state depending on error checking */
2402 struct gl_texture_image
*texImage
=
2403 _mesa_get_proxy_tex_image(ctx
, target
, level
);
2406 /* when error, clear all proxy texture image parameters */
2408 clear_teximage_fields(texImage
);
2411 /* no error, set the tex image parameters */
2412 struct gl_texture_object
*texObj
=
2413 _mesa_get_current_tex_object(ctx
, target
);
2414 gl_format texFormat
= _mesa_choose_texture_format(ctx
, texObj
,
2419 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
2420 _mesa_init_teximage_fields(ctx
, target
, texImage
, width
, height
,
2421 depth
, border
, internalFormat
,
2424 else if (texImage
) {
2425 clear_teximage_fields(texImage
);
2430 /* non-proxy target */
2431 const GLuint face
= _mesa_tex_target_to_face(target
);
2432 struct gl_texture_object
*texObj
;
2433 struct gl_texture_image
*texImage
;
2436 return; /* error was recorded */
2439 /* Allow a hardware driver to just strip out the border, to provide
2440 * reliable but slightly incorrect hardware rendering instead of
2441 * rarely-tested software fallback rendering.
2443 if (border
&& ctx
->Const
.StripTextureBorder
) {
2444 strip_texture_border(&border
, &width
, &height
, &depth
, unpack
,
2446 unpack
= &unpack_no_border
;
2449 if (ctx
->NewState
& _NEW_PIXEL
)
2450 _mesa_update_state(ctx
);
2452 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2454 _mesa_lock_texture(ctx
, texObj
);
2456 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
2459 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
2462 gl_format texFormat
;
2464 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
2466 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
2467 internalFormat
, format
,
2470 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
2471 _mesa_init_teximage_fields(ctx
, target
, texImage
,
2472 width
, height
, depth
,
2473 border
, internalFormat
, texFormat
);
2475 /* Give the texture to the driver. <pixels> may be null. */
2476 ASSERT(ctx
->Driver
.TexImage3D
);
2479 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
2480 width
, border
, format
,
2481 type
, pixels
, unpack
, texObj
,
2485 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
2486 width
, height
, border
, format
,
2487 type
, pixels
, unpack
, texObj
,
2491 ctx
->Driver
.TexImage3D(ctx
, target
, level
, internalFormat
,
2492 width
, height
, depth
, border
, format
,
2493 type
, pixels
, unpack
, texObj
,
2497 _mesa_problem(ctx
, "invalid dims=%u in teximage()", dims
);
2500 check_gen_mipmap(ctx
, target
, texObj
, level
);
2502 update_fbo_texture(ctx
, texObj
, face
, level
);
2505 texObj
->_Complete
= GL_FALSE
;
2506 ctx
->NewState
|= _NEW_TEXTURE
;
2509 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
2513 _mesa_unlock_texture(ctx
, texObj
);
2519 * Called from the API. Note that width includes the border.
2522 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalFormat
,
2523 GLsizei width
, GLint border
, GLenum format
,
2524 GLenum type
, const GLvoid
*pixels
)
2526 GET_CURRENT_CONTEXT(ctx
);
2527 teximage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1,
2528 border
, format
, type
, pixels
);
2533 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalFormat
,
2534 GLsizei width
, GLsizei height
, GLint border
,
2535 GLenum format
, GLenum type
,
2536 const GLvoid
*pixels
)
2538 GET_CURRENT_CONTEXT(ctx
);
2539 teximage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1,
2540 border
, format
, type
, pixels
);
2545 * Called by the API or display list executor.
2546 * Note that width and height include the border.
2549 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalFormat
,
2550 GLsizei width
, GLsizei height
, GLsizei depth
,
2551 GLint border
, GLenum format
, GLenum type
,
2552 const GLvoid
*pixels
)
2554 GET_CURRENT_CONTEXT(ctx
);
2555 teximage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
2556 border
, format
, type
, pixels
);
2561 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalFormat
,
2562 GLsizei width
, GLsizei height
, GLsizei depth
,
2563 GLint border
, GLenum format
, GLenum type
,
2564 const GLvoid
*pixels
)
2566 _mesa_TexImage3D(target
, level
, (GLint
) internalFormat
, width
, height
,
2567 depth
, border
, format
, type
, pixels
);
2571 #if FEATURE_OES_EGL_image
2573 _mesa_EGLImageTargetTexture2DOES (GLenum target
, GLeglImageOES image
)
2575 struct gl_texture_object
*texObj
;
2576 struct gl_texture_image
*texImage
;
2577 GET_CURRENT_CONTEXT(ctx
);
2578 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2580 if ((target
== GL_TEXTURE_2D
&&
2581 !ctx
->Extensions
.OES_EGL_image
) ||
2582 (target
== GL_TEXTURE_EXTERNAL_OES
&&
2583 !ctx
->Extensions
.OES_EGL_image_external
)) {
2584 _mesa_error(ctx
, GL_INVALID_ENUM
,
2585 "glEGLImageTargetTexture2D(target=%d)", target
);
2589 if (ctx
->NewState
& _NEW_PIXEL
)
2590 _mesa_update_state(ctx
);
2592 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2593 _mesa_lock_texture(ctx
, texObj
);
2595 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
2597 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glEGLImageTargetTexture2D");
2599 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
2601 ctx
->Driver
.EGLImageTargetTexture2D(ctx
, target
,
2602 texObj
, texImage
, image
);
2605 texObj
->_Complete
= GL_FALSE
;
2606 ctx
->NewState
|= _NEW_TEXTURE
;
2608 _mesa_unlock_texture(ctx
, texObj
);
2616 * Implement all the glTexSubImage1/2/3D() functions.
2619 texsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
2620 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2621 GLsizei width
, GLsizei height
, GLsizei depth
,
2622 GLenum format
, GLenum type
, const GLvoid
*pixels
)
2624 struct gl_texture_object
*texObj
;
2625 struct gl_texture_image
*texImage
;
2627 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2629 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2630 _mesa_debug(ctx
, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
2632 _mesa_lookup_enum_by_nr(target
), level
,
2633 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
2634 _mesa_lookup_enum_by_nr(format
),
2635 _mesa_lookup_enum_by_nr(type
), pixels
);
2637 /* check target (proxies not allowed) */
2638 if (!legal_texsubimage_target(ctx
, dims
, target
)) {
2639 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
2640 dims
, _mesa_lookup_enum_by_nr(target
));
2644 if (ctx
->NewState
& _NEW_PIXEL
)
2645 _mesa_update_state(ctx
);
2647 if (subtexture_error_check(ctx
, dims
, target
, level
, xoffset
, yoffset
, zoffset
,
2648 width
, height
, depth
, format
, type
)) {
2649 return; /* error was detected */
2652 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2654 _mesa_lock_texture(ctx
, texObj
);
2656 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2658 if (subtexture_error_check2(ctx
, dims
, target
, level
,
2659 xoffset
, yoffset
, zoffset
,
2660 width
, height
, depth
,
2661 format
, type
, texImage
)) {
2662 /* error was recorded */
2664 else if (width
> 0 && height
> 0 && depth
> 0) {
2665 /* If we have a border, offset=-1 is legal. Bias by border width. */
2668 zoffset
+= texImage
->Border
;
2671 yoffset
+= texImage
->Border
;
2674 xoffset
+= texImage
->Border
;
2679 ctx
->Driver
.TexSubImage1D(ctx
, target
, level
,
2681 format
, type
, pixels
,
2682 &ctx
->Unpack
, texObj
, texImage
);
2685 ctx
->Driver
.TexSubImage2D(ctx
, target
, level
,
2686 xoffset
, yoffset
, width
, height
,
2687 format
, type
, pixels
,
2688 &ctx
->Unpack
, texObj
, texImage
);
2691 ctx
->Driver
.TexSubImage3D(ctx
, target
, level
,
2692 xoffset
, yoffset
, zoffset
,
2693 width
, height
, depth
,
2694 format
, type
, pixels
,
2695 &ctx
->Unpack
, texObj
, texImage
);
2698 _mesa_problem(ctx
, "unexpected dims in subteximage()");
2701 check_gen_mipmap(ctx
, target
, texObj
, level
);
2703 ctx
->NewState
|= _NEW_TEXTURE
;
2706 _mesa_unlock_texture(ctx
, texObj
);
2711 _mesa_TexSubImage1D( GLenum target
, GLint level
,
2712 GLint xoffset
, GLsizei width
,
2713 GLenum format
, GLenum type
,
2714 const GLvoid
*pixels
)
2716 GET_CURRENT_CONTEXT(ctx
);
2717 texsubimage(ctx
, 1, target
, level
,
2720 format
, type
, pixels
);
2725 _mesa_TexSubImage2D( GLenum target
, GLint level
,
2726 GLint xoffset
, GLint yoffset
,
2727 GLsizei width
, GLsizei height
,
2728 GLenum format
, GLenum type
,
2729 const GLvoid
*pixels
)
2731 GET_CURRENT_CONTEXT(ctx
);
2732 texsubimage(ctx
, 2, target
, level
,
2733 xoffset
, yoffset
, 0,
2735 format
, type
, pixels
);
2741 _mesa_TexSubImage3D( GLenum target
, GLint level
,
2742 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2743 GLsizei width
, GLsizei height
, GLsizei depth
,
2744 GLenum format
, GLenum type
,
2745 const GLvoid
*pixels
)
2747 GET_CURRENT_CONTEXT(ctx
);
2748 texsubimage(ctx
, 3, target
, level
,
2749 xoffset
, yoffset
, zoffset
,
2750 width
, height
, depth
,
2751 format
, type
, pixels
);
2757 * Implement the glCopyTexImage1/2D() functions.
2760 copyteximage(struct gl_context
*ctx
, GLuint dims
,
2761 GLenum target
, GLint level
, GLenum internalFormat
,
2762 GLint x
, GLint y
, GLsizei width
, GLsizei height
, GLint border
)
2764 struct gl_texture_object
*texObj
;
2765 struct gl_texture_image
*texImage
;
2766 const GLuint face
= _mesa_tex_target_to_face(target
);
2768 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2770 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2771 _mesa_debug(ctx
, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
2773 _mesa_lookup_enum_by_nr(target
), level
,
2774 _mesa_lookup_enum_by_nr(internalFormat
),
2775 x
, y
, width
, height
, border
);
2777 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
2778 _mesa_update_state(ctx
);
2780 if (copytexture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2781 width
, height
, border
))
2784 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2786 if (border
&& ctx
->Const
.StripTextureBorder
) {
2788 width
-= border
* 2;
2791 height
-= border
* 2;
2796 _mesa_lock_texture(ctx
, texObj
);
2798 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
2801 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
2804 /* choose actual hw format */
2805 gl_format texFormat
= _mesa_choose_texture_format(ctx
, texObj
,
2810 if (legal_texture_size(ctx
, texFormat
, width
, height
, 1)) {
2811 GLint srcX
= x
, srcY
= y
, dstX
= 0, dstY
= 0;
2813 /* Free old texture image */
2814 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
2816 _mesa_init_teximage_fields(ctx
, target
, texImage
, width
, height
, 1,
2817 border
, internalFormat
, texFormat
);
2819 /* Allocate texture memory (no pixel data yet) */
2821 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
2822 width
, border
, GL_NONE
, GL_NONE
, NULL
,
2823 &ctx
->Unpack
, texObj
, texImage
);
2826 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
2827 width
, height
, border
, GL_NONE
, GL_NONE
,
2828 NULL
, &ctx
->Unpack
, texObj
, texImage
);
2831 if (_mesa_clip_copytexsubimage(ctx
, &dstX
, &dstY
, &srcX
, &srcY
,
2834 ctx
->Driver
.CopyTexSubImage1D(ctx
, target
, level
, dstX
,
2838 ctx
->Driver
.CopyTexSubImage2D(ctx
, target
, level
, dstX
, dstY
,
2839 srcX
, srcY
, width
, height
);
2842 check_gen_mipmap(ctx
, target
, texObj
, level
);
2844 update_fbo_texture(ctx
, texObj
, face
, level
);
2847 texObj
->_Complete
= GL_FALSE
;
2848 ctx
->NewState
|= _NEW_TEXTURE
;
2851 /* probably too large of image */
2852 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
2856 _mesa_unlock_texture(ctx
, texObj
);
2862 _mesa_CopyTexImage1D( GLenum target
, GLint level
,
2863 GLenum internalFormat
,
2865 GLsizei width
, GLint border
)
2867 GET_CURRENT_CONTEXT(ctx
);
2868 copyteximage(ctx
, 1, target
, level
, internalFormat
, x
, y
, width
, 1, border
);
2874 _mesa_CopyTexImage2D( GLenum target
, GLint level
, GLenum internalFormat
,
2875 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
2878 GET_CURRENT_CONTEXT(ctx
);
2879 copyteximage(ctx
, 2, target
, level
, internalFormat
,
2880 x
, y
, width
, height
, border
);
2886 * Implementation for glCopyTexSubImage1/2/3D() functions.
2889 copytexsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
2890 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2891 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
2893 struct gl_texture_object
*texObj
;
2894 struct gl_texture_image
*texImage
;
2896 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2898 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2899 _mesa_debug(ctx
, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
2901 _mesa_lookup_enum_by_nr(target
),
2902 level
, xoffset
, yoffset
, zoffset
, x
, y
, width
, height
);
2904 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
2905 _mesa_update_state(ctx
);
2907 if (copytexsubimage_error_check1(ctx
, dims
, target
, level
))
2910 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2912 _mesa_lock_texture(ctx
, texObj
);
2914 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2916 if (copytexsubimage_error_check2(ctx
, dims
, target
, level
, xoffset
, yoffset
,
2917 zoffset
, width
, height
, texImage
)) {
2918 /* error was recored */
2921 /* If we have a border, offset=-1 is legal. Bias by border width. */
2924 zoffset
+= texImage
->Border
;
2927 yoffset
+= texImage
->Border
;
2930 xoffset
+= texImage
->Border
;
2933 if (_mesa_clip_copytexsubimage(ctx
, &xoffset
, &yoffset
, &x
, &y
,
2937 ctx
->Driver
.CopyTexSubImage1D(ctx
, target
, level
,
2938 xoffset
, x
, y
, width
);
2941 ctx
->Driver
.CopyTexSubImage2D(ctx
, target
, level
,
2943 x
, y
, width
, height
);
2946 ctx
->Driver
.CopyTexSubImage3D(ctx
, target
, level
,
2947 xoffset
, yoffset
, zoffset
,
2948 x
, y
, width
, height
);
2951 _mesa_problem(ctx
, "bad dims in copytexsubimage()");
2954 check_gen_mipmap(ctx
, target
, texObj
, level
);
2956 ctx
->NewState
|= _NEW_TEXTURE
;
2960 _mesa_unlock_texture(ctx
, texObj
);
2965 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
,
2966 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
2968 GET_CURRENT_CONTEXT(ctx
);
2969 copytexsubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, x
, y
, width
, 1);
2975 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
2976 GLint xoffset
, GLint yoffset
,
2977 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
2979 GET_CURRENT_CONTEXT(ctx
);
2980 copytexsubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0, x
, y
,
2987 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
2988 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2989 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
2991 GET_CURRENT_CONTEXT(ctx
);
2992 copytexsubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
2993 x
, y
, width
, height
);
2999 /**********************************************************************/
3000 /****** Compressed Textures ******/
3001 /**********************************************************************/
3005 * Return expected size of a compressed texture.
3008 compressed_tex_size(GLsizei width
, GLsizei height
, GLsizei depth
,
3011 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
3012 return _mesa_format_image_size(mesaFormat
, width
, height
, depth
);
3017 * Return compressed texture block size, in pixels.
3020 get_compressed_block_size(GLenum glformat
, GLuint
*bw
, GLuint
*bh
)
3022 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
3023 _mesa_get_format_block_size(mesaFormat
, bw
, bh
);
3028 * Error checking for glCompressedTexImage[123]D().
3029 * \param reason returns reason for error, if any
3030 * \return error code or GL_NO_ERROR.
3033 compressed_texture_error_check(struct gl_context
*ctx
, GLint dimensions
,
3034 GLenum target
, GLint level
,
3035 GLenum internalFormat
, GLsizei width
,
3036 GLsizei height
, GLsizei depth
, GLint border
,
3037 GLsizei imageSize
, char **reason
)
3039 const GLenum proxyTarget
= get_proxy_target(target
);
3040 const GLint maxLevels
= _mesa_max_texture_levels(ctx
, target
);
3042 GLenum choose_format
;
3044 GLenum proxy_format
;
3046 *reason
= ""; /* no error */
3048 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
3050 return GL_INVALID_ENUM
;
3053 /* This will detect any invalid internalFormat value */
3054 if (!_mesa_is_compressed_format(ctx
, internalFormat
)) {
3055 *reason
= "internalFormat";
3056 return GL_INVALID_ENUM
;
3059 switch (internalFormat
) {
3061 case GL_PALETTE4_RGB8_OES
:
3062 case GL_PALETTE4_RGBA8_OES
:
3063 case GL_PALETTE4_R5_G6_B5_OES
:
3064 case GL_PALETTE4_RGBA4_OES
:
3065 case GL_PALETTE4_RGB5_A1_OES
:
3066 case GL_PALETTE8_RGB8_OES
:
3067 case GL_PALETTE8_RGBA8_OES
:
3068 case GL_PALETTE8_R5_G6_B5_OES
:
3069 case GL_PALETTE8_RGBA4_OES
:
3070 case GL_PALETTE8_RGB5_A1_OES
:
3071 _mesa_cpal_compressed_format_type(internalFormat
, &choose_format
,
3073 proxy_format
= choose_format
;
3076 if (level
> 0 || level
< -maxLevels
) {
3078 return GL_INVALID_VALUE
;
3081 if (dimensions
!= 2) {
3082 *reason
= "compressed paletted textures must be 2D";
3083 return GL_INVALID_OPERATION
;
3086 /* Figure out the expected texture size (in bytes). This will be
3087 * checked against the actual size later.
3089 expectedSize
= _mesa_cpal_compressed_size(level
, internalFormat
,
3092 /* This is for the benefit of the TestProxyTexImage below. It expects
3093 * level to be non-negative. OES_compressed_paletted_texture uses a
3094 * weird mechanism where the level specified to glCompressedTexImage2D
3095 * is -(n-1) number of levels in the texture, and the data specifies the
3096 * complete mipmap stack. This is done to ensure the palette is the
3097 * same for all levels.
3104 choose_format
= GL_NONE
;
3105 choose_type
= GL_NONE
;
3106 proxy_format
= internalFormat
;
3109 if (level
< 0 || level
>= maxLevels
) {
3111 return GL_INVALID_VALUE
;
3114 /* Figure out the expected texture size (in bytes). This will be
3115 * checked against the actual size later.
3117 expectedSize
= compressed_tex_size(width
, height
, depth
, internalFormat
);
3121 /* This should really never fail */
3122 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
3123 *reason
= "internalFormat";
3124 return GL_INVALID_ENUM
;
3127 /* No compressed formats support borders at this time */
3129 *reason
= "border != 0";
3130 return GL_INVALID_VALUE
;
3133 /* For cube map, width must equal height */
3134 if (_mesa_is_cube_face(target
) && width
!= height
) {
3135 *reason
= "width != height";
3136 return GL_INVALID_VALUE
;
3139 /* check image size against compression block size */
3141 gl_format texFormat
=
3142 ctx
->Driver
.ChooseTextureFormat(ctx
, proxy_format
,
3143 choose_format
, choose_type
);
3146 _mesa_get_format_block_size(texFormat
, &bw
, &bh
);
3147 if ((width
> bw
&& width
% bw
> 0) ||
3148 (height
> bh
&& height
% bh
> 0)) {
3150 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is
3151 * generated [...] if any parameter combinations are not
3152 * supported by the specific compressed internal format.
3154 *reason
= "invalid width or height for compression format";
3155 return GL_INVALID_OPERATION
;
3159 /* check image sizes */
3160 if (!ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
3161 proxy_format
, choose_format
,
3163 width
, height
, depth
, border
)) {
3164 /* See error comment above */
3165 *reason
= "invalid width, height or format";
3166 return GL_INVALID_OPERATION
;
3169 /* check image size in bytes */
3170 if (expectedSize
!= imageSize
) {
3171 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
3172 * if <imageSize> is not consistent with the format, dimensions, and
3173 * contents of the specified image.
3175 *reason
= "imageSize inconsistant with width/height/format";
3176 return GL_INVALID_VALUE
;
3179 if (!mutable_tex_object(ctx
, target
)) {
3180 *reason
= "immutable texture";
3181 return GL_INVALID_OPERATION
;
3189 * Error checking for glCompressedTexSubImage[123]D().
3190 * \warning There are some bad assumptions here about the size of compressed
3191 * texture tiles (multiple of 4) used to test the validity of the
3192 * offset and size parameters.
3193 * \return error code or GL_NO_ERROR.
3196 compressed_subtexture_error_check(struct gl_context
*ctx
, GLint dimensions
,
3197 GLenum target
, GLint level
,
3198 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3199 GLsizei width
, GLsizei height
, GLsizei depth
,
3200 GLenum format
, GLsizei imageSize
)
3202 GLint expectedSize
, maxLevels
= 0, maxTextureSize
;
3206 if (dimensions
== 1) {
3207 /* 1D compressed textures not allowed */
3208 return GL_INVALID_ENUM
;
3210 else if (dimensions
== 2) {
3211 if (target
== GL_PROXY_TEXTURE_2D
) {
3212 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3214 else if (target
== GL_TEXTURE_2D
) {
3215 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3217 else if (target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
) {
3218 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3219 return GL_INVALID_ENUM
; /*target*/
3220 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3222 else if (_mesa_is_cube_face(target
)) {
3223 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3224 return GL_INVALID_ENUM
; /*target*/
3225 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3228 return GL_INVALID_ENUM
; /*target*/
3231 else if (dimensions
== 3) {
3232 /* 3D compressed textures not allowed */
3233 return GL_INVALID_ENUM
;
3236 maxTextureSize
= 1 << (maxLevels
- 1);
3238 /* this will catch any invalid compressed format token */
3239 if (!_mesa_is_compressed_format(ctx
, format
))
3240 return GL_INVALID_ENUM
;
3242 if (width
< 1 || width
> maxTextureSize
)
3243 return GL_INVALID_VALUE
;
3245 if ((height
< 1 || height
> maxTextureSize
)
3247 return GL_INVALID_VALUE
;
3249 if (level
< 0 || level
>= maxLevels
)
3250 return GL_INVALID_VALUE
;
3253 * do checks which depend on compression block size
3255 get_compressed_block_size(format
, &bw
, &bh
);
3257 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0))
3258 return GL_INVALID_VALUE
;
3260 if ((width
% bw
!= 0) && width
!= 2 && width
!= 1)
3261 return GL_INVALID_VALUE
;
3263 if ((height
% bh
!= 0) && height
!= 2 && height
!= 1)
3264 return GL_INVALID_VALUE
;
3266 expectedSize
= compressed_tex_size(width
, height
, depth
, format
);
3267 if (expectedSize
!= imageSize
)
3268 return GL_INVALID_VALUE
;
3275 * Do second part of glCompressedTexSubImage error checking.
3276 * \return GL_TRUE if error found, GL_FALSE otherwise.
3279 compressed_subtexture_error_check2(struct gl_context
*ctx
, GLuint dims
,
3280 GLsizei width
, GLsizei height
,
3281 GLsizei depth
, GLenum format
,
3282 struct gl_texture_image
*texImage
)
3285 if ((GLint
) format
!= texImage
->InternalFormat
) {
3286 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3287 "glCompressedTexSubImage%uD(format=0x%x)", dims
, format
);
3291 if (compressedteximage_only_format(ctx
, format
)) {
3292 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3293 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)"
3298 if (((width
== 1 || width
== 2) &&
3299 width
!= (GLsizei
) texImage
->Width
) ||
3300 (width
> (GLsizei
) texImage
->Width
)) {
3301 _mesa_error(ctx
, GL_INVALID_VALUE
,
3302 "glCompressedTexSubImage%uD(width=%d)", dims
, width
);
3307 if (((height
== 1 || height
== 2) &&
3308 height
!= (GLsizei
) texImage
->Height
) ||
3309 (height
> (GLsizei
) texImage
->Height
)) {
3310 _mesa_error(ctx
, GL_INVALID_VALUE
,
3311 "glCompressedTexSubImage%uD(height=%d)", dims
, height
);
3317 if (((depth
== 1 || depth
== 2) &&
3318 depth
!= (GLsizei
) texImage
->Depth
) ||
3319 (depth
> (GLsizei
) texImage
->Depth
)) {
3320 _mesa_error(ctx
, GL_INVALID_VALUE
,
3321 "glCompressedTexSubImage%uD(depth=%d)", dims
, depth
);
3331 * Implementation of the glCompressedTexImage1/2/3D() functions.
3334 compressedteximage(struct gl_context
*ctx
, GLuint dims
,
3335 GLenum target
, GLint level
,
3336 GLenum internalFormat
, GLsizei width
,
3337 GLsizei height
, GLsizei depth
, GLint border
,
3338 GLsizei imageSize
, const GLvoid
*data
)
3343 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3345 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3347 "glCompressedTexImage%uDARB %s %d %s %d %d %d %d %d %p\n",
3349 _mesa_lookup_enum_by_nr(target
), level
,
3350 _mesa_lookup_enum_by_nr(internalFormat
),
3351 width
, height
, depth
, border
, imageSize
, data
);
3354 if (!legal_teximage_target(ctx
, dims
, target
)) {
3355 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCompressedTexImage%uD(target=%s)",
3356 dims
, _mesa_lookup_enum_by_nr(target
));
3360 error
= compressed_texture_error_check(ctx
, dims
, target
, level
,
3361 internalFormat
, width
, height
, depth
,
3362 border
, imageSize
, &reason
);
3365 _mesa_error(ctx
, error
, "glCompressedTexImage%uD(%s)", dims
, reason
);
3370 /* XXX this is kind of a hack */
3372 switch (internalFormat
) {
3373 case GL_PALETTE4_RGB8_OES
:
3374 case GL_PALETTE4_RGBA8_OES
:
3375 case GL_PALETTE4_R5_G6_B5_OES
:
3376 case GL_PALETTE4_RGBA4_OES
:
3377 case GL_PALETTE4_RGB5_A1_OES
:
3378 case GL_PALETTE8_RGB8_OES
:
3379 case GL_PALETTE8_RGBA8_OES
:
3380 case GL_PALETTE8_R5_G6_B5_OES
:
3381 case GL_PALETTE8_RGBA4_OES
:
3382 case GL_PALETTE8_RGB5_A1_OES
:
3383 _mesa_cpal_compressed_teximage2d(target
, level
, internalFormat
,
3384 width
, height
, imageSize
, data
);
3390 if (_mesa_is_proxy_texture(target
)) {
3391 /* Proxy texture: just check for errors and update proxy state */
3392 struct gl_texture_image
*texImage
;
3395 struct gl_texture_object
*texObj
=
3396 _mesa_get_current_tex_object(ctx
, target
);
3397 gl_format texFormat
=
3398 _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3399 internalFormat
, GL_NONE
, GL_NONE
);
3400 if (!legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
3401 error
= GL_OUT_OF_MEMORY
;
3405 texImage
= _mesa_get_proxy_tex_image(ctx
, target
, level
);
3408 /* if error, clear all proxy texture image parameters */
3409 clear_teximage_fields(texImage
);
3412 /* no error: store the teximage parameters */
3413 _mesa_init_teximage_fields(ctx
, target
, texImage
, width
, height
,
3414 depth
, border
, internalFormat
,
3420 /* non-proxy target */
3421 struct gl_texture_object
*texObj
;
3422 struct gl_texture_image
*texImage
;
3425 _mesa_error(ctx
, error
, "glCompressedTexImage%uD", dims
);
3429 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3431 _mesa_lock_texture(ctx
, texObj
);
3433 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3435 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3436 "glCompressedTexImage%uD", dims
);
3439 gl_format texFormat
;
3441 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3443 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3444 internalFormat
, GL_NONE
,
3447 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
3448 _mesa_init_teximage_fields(ctx
, target
, texImage
,
3449 width
, height
, depth
,
3450 border
, internalFormat
, texFormat
);
3454 ASSERT(ctx
->Driver
.CompressedTexImage1D
);
3455 ctx
->Driver
.CompressedTexImage1D(ctx
, target
, level
,
3458 border
, imageSize
, data
,
3462 ASSERT(ctx
->Driver
.CompressedTexImage2D
);
3463 ctx
->Driver
.CompressedTexImage2D(ctx
, target
, level
,
3466 border
, imageSize
, data
,
3470 ASSERT(ctx
->Driver
.CompressedTexImage3D
);
3471 ctx
->Driver
.CompressedTexImage3D(ctx
, target
, level
,
3473 width
, height
, depth
,
3474 border
, imageSize
, data
,
3478 _mesa_problem(ctx
, "bad dims in compressedteximage");
3481 check_gen_mipmap(ctx
, target
, texObj
, level
);
3484 texObj
->_Complete
= GL_FALSE
;
3485 ctx
->NewState
|= _NEW_TEXTURE
;
3488 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3489 "glCompressedTexImage%uD", dims
);
3493 _mesa_unlock_texture(ctx
, texObj
);
3499 _mesa_CompressedTexImage1DARB(GLenum target
, GLint level
,
3500 GLenum internalFormat
, GLsizei width
,
3501 GLint border
, GLsizei imageSize
,
3504 GET_CURRENT_CONTEXT(ctx
);
3505 compressedteximage(ctx
, 1, target
, level
, internalFormat
,
3506 width
, 1, 1, border
, imageSize
, data
);
3511 _mesa_CompressedTexImage2DARB(GLenum target
, GLint level
,
3512 GLenum internalFormat
, GLsizei width
,
3513 GLsizei height
, GLint border
, GLsizei imageSize
,
3516 GET_CURRENT_CONTEXT(ctx
);
3517 compressedteximage(ctx
, 2, target
, level
, internalFormat
,
3518 width
, height
, 1, border
, imageSize
, data
);
3523 _mesa_CompressedTexImage3DARB(GLenum target
, GLint level
,
3524 GLenum internalFormat
, GLsizei width
,
3525 GLsizei height
, GLsizei depth
, GLint border
,
3526 GLsizei imageSize
, const GLvoid
*data
)
3528 GET_CURRENT_CONTEXT(ctx
);
3529 compressedteximage(ctx
, 3, target
, level
, internalFormat
,
3530 width
, height
, depth
, border
, imageSize
, data
);
3535 * Common helper for glCompressedTexSubImage1/2/3D().
3538 compressed_tex_sub_image(GLuint dims
, GLenum target
, GLint level
,
3539 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3540 GLsizei width
, GLsizei height
, GLsizei depth
,
3541 GLenum format
, GLsizei imageSize
, const GLvoid
*data
)
3543 struct gl_texture_object
*texObj
;
3544 struct gl_texture_image
*texImage
;
3546 GET_CURRENT_CONTEXT(ctx
);
3547 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3549 error
= compressed_subtexture_error_check(ctx
, dims
, target
, level
,
3550 xoffset
, 0, 0, /* pos */
3551 width
, height
, depth
, /* size */
3554 _mesa_error(ctx
, error
, "glCompressedTexSubImage%uD", dims
);
3558 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3560 _mesa_lock_texture(ctx
, texObj
);
3562 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3565 if (compressed_subtexture_error_check2(ctx
, dims
, width
, height
, depth
,
3566 format
, texImage
)) {
3567 /* error was recorded */
3569 else if (width
> 0 && height
> 0 && depth
> 0) {
3572 if (ctx
->Driver
.CompressedTexSubImage1D
) {
3573 ctx
->Driver
.CompressedTexSubImage1D(ctx
, target
, level
,
3575 format
, imageSize
, data
,
3580 if (ctx
->Driver
.CompressedTexSubImage2D
) {
3581 ctx
->Driver
.CompressedTexSubImage2D(ctx
, target
, level
,
3584 format
, imageSize
, data
,
3589 if (ctx
->Driver
.CompressedTexSubImage3D
) {
3590 ctx
->Driver
.CompressedTexSubImage3D(ctx
, target
, level
,
3591 xoffset
, yoffset
, zoffset
,
3592 width
, height
, depth
,
3593 format
, imageSize
, data
,
3601 check_gen_mipmap(ctx
, target
, texObj
, level
);
3603 ctx
->NewState
|= _NEW_TEXTURE
;
3606 _mesa_unlock_texture(ctx
, texObj
);
3611 _mesa_CompressedTexSubImage1DARB(GLenum target
, GLint level
, GLint xoffset
,
3612 GLsizei width
, GLenum format
,
3613 GLsizei imageSize
, const GLvoid
*data
)
3615 compressed_tex_sub_image(1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
3616 format
, imageSize
, data
);
3621 _mesa_CompressedTexSubImage2DARB(GLenum target
, GLint level
, GLint xoffset
,
3622 GLint yoffset
, GLsizei width
, GLsizei height
,
3623 GLenum format
, GLsizei imageSize
,
3626 compressed_tex_sub_image(2, target
, level
, xoffset
, yoffset
, 0,
3627 width
, height
, 1, format
, imageSize
, data
);
3632 _mesa_CompressedTexSubImage3DARB(GLenum target
, GLint level
, GLint xoffset
,
3633 GLint yoffset
, GLint zoffset
, GLsizei width
,
3634 GLsizei height
, GLsizei depth
, GLenum format
,
3635 GLsizei imageSize
, const GLvoid
*data
)
3637 compressed_tex_sub_image(3, target
, level
, xoffset
, yoffset
, zoffset
,
3638 width
, height
, depth
, format
, imageSize
, data
);
3643 * Helper for glTexBuffer(). Check if internalFormat is legal. If so,
3644 * return the basic data type and number of components for the format.
3645 * \param return GL_TRUE if internalFormat is legal, GL_FALSE otherwise
3648 get_sized_format_info(const struct gl_context
*ctx
, GLenum internalFormat
,
3649 GLenum
*datatype
, GLuint
*components
)
3651 switch (internalFormat
) {
3653 *datatype
= GL_UNSIGNED_BYTE
;
3657 *datatype
= GL_UNSIGNED_SHORT
;
3660 case GL_ALPHA16F_ARB
:
3661 *datatype
= GL_HALF_FLOAT
;
3664 case GL_ALPHA32F_ARB
:
3665 *datatype
= GL_FLOAT
;
3668 case GL_ALPHA8I_EXT
:
3669 *datatype
= GL_BYTE
;
3672 case GL_ALPHA16I_EXT
:
3673 *datatype
= GL_SHORT
;
3676 case GL_ALPHA32I_EXT
:
3680 case GL_ALPHA8UI_EXT
:
3681 *datatype
= GL_UNSIGNED_BYTE
;
3684 case GL_ALPHA16UI_EXT
:
3685 *datatype
= GL_UNSIGNED_SHORT
;
3688 case GL_ALPHA32UI_EXT
:
3689 *datatype
= GL_UNSIGNED_INT
;
3693 *datatype
= GL_UNSIGNED_BYTE
;
3696 case GL_LUMINANCE16
:
3697 *datatype
= GL_UNSIGNED_SHORT
;
3700 case GL_LUMINANCE16F_ARB
:
3701 *datatype
= GL_HALF_FLOAT
;
3704 case GL_LUMINANCE32F_ARB
:
3705 *datatype
= GL_FLOAT
;
3708 case GL_LUMINANCE8I_EXT
:
3709 *datatype
= GL_BYTE
;
3712 case GL_LUMINANCE16I_EXT
:
3713 *datatype
= GL_SHORT
;
3716 case GL_LUMINANCE32I_EXT
:
3720 case GL_LUMINANCE8UI_EXT
:
3721 *datatype
= GL_UNSIGNED_BYTE
;
3724 case GL_LUMINANCE16UI_EXT
:
3725 *datatype
= GL_UNSIGNED_SHORT
;
3728 case GL_LUMINANCE32UI_EXT
:
3729 *datatype
= GL_UNSIGNED_INT
;
3732 case GL_LUMINANCE8_ALPHA8
:
3733 *datatype
= GL_UNSIGNED_BYTE
;
3736 case GL_LUMINANCE16_ALPHA16
:
3737 *datatype
= GL_UNSIGNED_SHORT
;
3740 case GL_LUMINANCE_ALPHA16F_ARB
:
3741 *datatype
= GL_HALF_FLOAT
;
3744 case GL_LUMINANCE_ALPHA32F_ARB
:
3745 *datatype
= GL_FLOAT
;
3748 case GL_LUMINANCE_ALPHA8I_EXT
:
3749 *datatype
= GL_BYTE
;
3752 case GL_LUMINANCE_ALPHA16I_EXT
:
3753 *datatype
= GL_SHORT
;
3756 case GL_LUMINANCE_ALPHA32I_EXT
:
3760 case GL_LUMINANCE_ALPHA8UI_EXT
:
3761 *datatype
= GL_UNSIGNED_BYTE
;
3764 case GL_LUMINANCE_ALPHA16UI_EXT
:
3765 *datatype
= GL_UNSIGNED_SHORT
;
3768 case GL_LUMINANCE_ALPHA32UI_EXT
:
3769 *datatype
= GL_UNSIGNED_INT
;
3773 *datatype
= GL_UNSIGNED_BYTE
;
3776 case GL_INTENSITY16
:
3777 *datatype
= GL_UNSIGNED_SHORT
;
3780 case GL_INTENSITY16F_ARB
:
3781 *datatype
= GL_HALF_FLOAT
;
3784 case GL_INTENSITY32F_ARB
:
3785 *datatype
= GL_FLOAT
;
3788 case GL_INTENSITY8I_EXT
:
3789 *datatype
= GL_BYTE
;
3792 case GL_INTENSITY16I_EXT
:
3793 *datatype
= GL_SHORT
;
3796 case GL_INTENSITY32I_EXT
:
3800 case GL_INTENSITY8UI_EXT
:
3801 *datatype
= GL_UNSIGNED_BYTE
;
3804 case GL_INTENSITY16UI_EXT
:
3805 *datatype
= GL_UNSIGNED_SHORT
;
3808 case GL_INTENSITY32UI_EXT
:
3809 *datatype
= GL_UNSIGNED_INT
;
3813 *datatype
= GL_UNSIGNED_BYTE
;
3817 *datatype
= GL_UNSIGNED_SHORT
;
3820 case GL_RGBA16F_ARB
:
3821 *datatype
= GL_HALF_FLOAT
;
3824 case GL_RGBA32F_ARB
:
3825 *datatype
= GL_FLOAT
;
3829 *datatype
= GL_BYTE
;
3832 case GL_RGBA16I_EXT
:
3833 *datatype
= GL_SHORT
;
3836 case GL_RGBA32I_EXT
:
3840 case GL_RGBA8UI_EXT
:
3841 *datatype
= GL_UNSIGNED_BYTE
;
3844 case GL_RGBA16UI_EXT
:
3845 *datatype
= GL_UNSIGNED_SHORT
;
3848 case GL_RGBA32UI_EXT
:
3849 *datatype
= GL_UNSIGNED_INT
;
3856 if (*datatype
== GL_FLOAT
&& !ctx
->Extensions
.ARB_texture_float
)
3859 if (*datatype
== GL_HALF_FLOAT
&& !ctx
->Extensions
.ARB_half_float_pixel
)
3866 /** GL_ARB_texture_buffer_object */
3868 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
)
3870 struct gl_texture_object
*texObj
;
3871 struct gl_buffer_object
*bufObj
;
3875 GET_CURRENT_CONTEXT(ctx
);
3876 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3878 if (!ctx
->Extensions
.ARB_texture_buffer_object
) {
3879 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer");
3883 if (target
!= GL_TEXTURE_BUFFER_ARB
) {
3884 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(target)");
3888 if (!get_sized_format_info(ctx
, internalFormat
, &dataType
, &comps
)) {
3889 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(internalFormat 0x%x)",
3894 bufObj
= _mesa_lookup_bufferobj(ctx
, buffer
);
3895 if (buffer
&& !bufObj
) {
3896 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer(buffer %u)", buffer
);
3900 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3902 _mesa_lock_texture(ctx
, texObj
);
3904 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, bufObj
);
3905 texObj
->BufferObjectFormat
= internalFormat
;
3907 _mesa_unlock_texture(ctx
, texObj
);