2 * mesa 3-D graphics library
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 * Texture image-related functions.
34 #include "bufferobj.h"
38 #include "framebuffer.h"
44 #include "texcompress.h"
53 * State changes which we care about for glCopyTex[Sub]Image() calls.
54 * In particular, we care about pixel transfer state and buffer state
55 * (such as glReadBuffer to make sure we read from the right renderbuffer).
57 #define NEW_COPY_TEX_STATE (_MESA_NEW_TRANSFER_STATE | \
64 * We allocate texture memory on 512-byte boundaries so we can use MMX/SSE
68 _mesa_alloc_texmemory(GLsizei bytes
)
70 return _mesa_align_malloc(bytes
, 512);
75 * Free texture memory allocated with _mesa_alloc_texmemory()
78 _mesa_free_texmemory(void *m
)
85 * Compute floor(log_base_2(n)).
115 * Return the simple base format for a given internal texture format.
116 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
118 * \param ctx GL context.
119 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
121 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
122 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
124 * This is the format which is used during texture application (i.e. the
125 * texture format and env mode determine the arithmetic used.
127 * XXX this could be static
130 _mesa_base_tex_format( struct gl_context
*ctx
, GLint internalFormat
)
132 switch (internalFormat
) {
147 case GL_LUMINANCE_ALPHA
:
148 case GL_LUMINANCE4_ALPHA4
:
149 case GL_LUMINANCE6_ALPHA2
:
150 case GL_LUMINANCE8_ALPHA8
:
151 case GL_LUMINANCE12_ALPHA4
:
152 case GL_LUMINANCE12_ALPHA12
:
153 case GL_LUMINANCE16_ALPHA16
:
154 return GL_LUMINANCE_ALPHA
;
185 if (ctx
->Extensions
.EXT_paletted_texture
) {
186 switch (internalFormat
) {
188 case GL_COLOR_INDEX1_EXT
:
189 case GL_COLOR_INDEX2_EXT
:
190 case GL_COLOR_INDEX4_EXT
:
191 case GL_COLOR_INDEX8_EXT
:
192 case GL_COLOR_INDEX12_EXT
:
193 case GL_COLOR_INDEX16_EXT
:
194 return GL_COLOR_INDEX
;
200 if (ctx
->Extensions
.ARB_depth_texture
) {
201 switch (internalFormat
) {
202 case GL_DEPTH_COMPONENT
:
203 case GL_DEPTH_COMPONENT16
:
204 case GL_DEPTH_COMPONENT24
:
205 case GL_DEPTH_COMPONENT32
:
206 return GL_DEPTH_COMPONENT
;
212 switch (internalFormat
) {
213 case GL_COMPRESSED_ALPHA
:
215 case GL_COMPRESSED_LUMINANCE
:
217 case GL_COMPRESSED_LUMINANCE_ALPHA
:
218 return GL_LUMINANCE_ALPHA
;
219 case GL_COMPRESSED_INTENSITY
:
221 case GL_COMPRESSED_RGB
:
223 case GL_COMPRESSED_RGBA
:
229 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
) {
230 switch (internalFormat
) {
231 case GL_COMPRESSED_RGB_FXT1_3DFX
:
233 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
240 if (ctx
->Extensions
.EXT_texture_compression_s3tc
) {
241 switch (internalFormat
) {
242 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
244 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
245 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
246 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
253 if (ctx
->Extensions
.S3_s3tc
) {
254 switch (internalFormat
) {
266 if (ctx
->Extensions
.MESA_ycbcr_texture
) {
267 if (internalFormat
== GL_YCBCR_MESA
)
268 return GL_YCBCR_MESA
;
271 if (ctx
->Extensions
.ARB_texture_float
) {
272 switch (internalFormat
) {
273 case GL_ALPHA16F_ARB
:
274 case GL_ALPHA32F_ARB
:
282 case GL_INTENSITY16F_ARB
:
283 case GL_INTENSITY32F_ARB
:
285 case GL_LUMINANCE16F_ARB
:
286 case GL_LUMINANCE32F_ARB
:
288 case GL_LUMINANCE_ALPHA16F_ARB
:
289 case GL_LUMINANCE_ALPHA32F_ARB
:
290 return GL_LUMINANCE_ALPHA
;
296 if (ctx
->Extensions
.ATI_envmap_bumpmap
) {
297 switch (internalFormat
) {
306 if (ctx
->Extensions
.MESA_texture_signed_rgba
) {
307 switch (internalFormat
) {
316 if (ctx
->Extensions
.EXT_packed_depth_stencil
) {
317 switch (internalFormat
) {
318 case GL_DEPTH_STENCIL_EXT
:
319 case GL_DEPTH24_STENCIL8_EXT
:
320 return GL_DEPTH_STENCIL_EXT
;
326 #if FEATURE_EXT_texture_sRGB
327 if (ctx
->Extensions
.EXT_texture_sRGB
) {
328 switch (internalFormat
) {
331 case GL_COMPRESSED_SRGB_EXT
:
332 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
334 case GL_SRGB_ALPHA_EXT
:
335 case GL_SRGB8_ALPHA8_EXT
:
336 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
337 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
338 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
339 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
341 case GL_SLUMINANCE_ALPHA_EXT
:
342 case GL_SLUMINANCE8_ALPHA8_EXT
:
343 case GL_COMPRESSED_SLUMINANCE_EXT
:
344 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
345 return GL_LUMINANCE_ALPHA
;
346 case GL_SLUMINANCE_EXT
:
347 case GL_SLUMINANCE8_EXT
:
353 #endif /* FEATURE_EXT_texture_sRGB */
355 if (ctx
->Extensions
.EXT_texture_integer
) {
356 switch (internalFormat
) {
358 case GL_RGBA16UI_EXT
:
359 case GL_RGBA32UI_EXT
:
371 case GL_ALPHA8UI_EXT
:
372 case GL_ALPHA16UI_EXT
:
373 case GL_ALPHA32UI_EXT
:
375 case GL_ALPHA16I_EXT
:
376 case GL_ALPHA32I_EXT
:
378 case GL_INTENSITY8UI_EXT
:
379 case GL_INTENSITY16UI_EXT
:
380 case GL_INTENSITY32UI_EXT
:
381 case GL_INTENSITY8I_EXT
:
382 case GL_INTENSITY16I_EXT
:
383 case GL_INTENSITY32I_EXT
:
385 case GL_LUMINANCE8UI_EXT
:
386 case GL_LUMINANCE16UI_EXT
:
387 case GL_LUMINANCE32UI_EXT
:
388 case GL_LUMINANCE8I_EXT
:
389 case GL_LUMINANCE16I_EXT
:
390 case GL_LUMINANCE32I_EXT
:
392 case GL_LUMINANCE_ALPHA8UI_EXT
:
393 case GL_LUMINANCE_ALPHA16UI_EXT
:
394 case GL_LUMINANCE_ALPHA32UI_EXT
:
395 case GL_LUMINANCE_ALPHA8I_EXT
:
396 case GL_LUMINANCE_ALPHA16I_EXT
:
397 case GL_LUMINANCE_ALPHA32I_EXT
:
398 return GL_LUMINANCE_ALPHA
;
404 if (ctx
->Extensions
.ARB_texture_rg
) {
405 switch (internalFormat
) {
407 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
409 if (!ctx
->Extensions
.ARB_half_float_pixel
)
413 if (!ctx
->Extensions
.ARB_texture_float
)
422 if (!ctx
->Extensions
.EXT_texture_integer
)
428 case GL_COMPRESSED_RED
:
432 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
434 if (!ctx
->Extensions
.ARB_half_float_pixel
)
438 if (!ctx
->Extensions
.ARB_texture_float
)
447 if (!ctx
->Extensions
.EXT_texture_integer
)
453 case GL_COMPRESSED_RG
:
460 if (ctx
->Extensions
.EXT_texture_shared_exponent
) {
461 switch (internalFormat
) {
469 if (ctx
->Extensions
.EXT_packed_float
) {
470 switch (internalFormat
) {
471 case GL_R11F_G11F_B10F_EXT
:
478 if (ctx
->Extensions
.ARB_depth_buffer_float
) {
479 switch (internalFormat
) {
480 case GL_DEPTH_COMPONENT32F
:
481 return GL_DEPTH_COMPONENT
;
482 case GL_DEPTH32F_STENCIL8
:
483 return GL_DEPTH_STENCIL
;
489 if (ctx
->Extensions
.ARB_texture_compression_rgtc
) {
490 switch (internalFormat
) {
491 case GL_COMPRESSED_RED_RGTC1
:
492 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
494 case GL_COMPRESSED_RG_RGTC2
:
495 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
502 return -1; /* error */
507 * For cube map faces, return a face index in [0,5].
508 * For other targets return 0;
511 _mesa_tex_target_to_face(GLenum target
)
513 if (target
>= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
&&
514 target
<= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
)
515 return (GLuint
) target
- (GLuint
) GL_TEXTURE_CUBE_MAP_POSITIVE_X
;
523 * Store a gl_texture_image pointer in a gl_texture_object structure
524 * according to the target and level parameters.
526 * \param tObj texture object.
527 * \param target texture target.
528 * \param level image level.
529 * \param texImage texture image.
531 * This was basically prompted by the introduction of cube maps.
534 _mesa_set_tex_image(struct gl_texture_object
*tObj
,
535 GLenum target
, GLint level
,
536 struct gl_texture_image
*texImage
)
538 const GLuint face
= _mesa_tex_target_to_face(target
);
542 ASSERT(target
!= GL_TEXTURE_RECTANGLE_NV
|| level
== 0);
544 tObj
->Image
[face
][level
] = texImage
;
546 /* Set the 'back' pointer */
547 texImage
->TexObject
= tObj
;
552 * Allocate a texture image structure.
554 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
557 * \return a pointer to gl_texture_image struct with all fields initialized to
560 struct gl_texture_image
*
561 _mesa_new_texture_image( struct gl_context
*ctx
)
564 return CALLOC_STRUCT(gl_texture_image
);
569 * Free texture image data.
570 * This function is a fallback called via ctx->Driver.FreeTexImageData().
572 * \param texImage texture image.
574 * Free the texture image data if it's not marked as client data.
577 _mesa_free_texture_image_data(struct gl_context
*ctx
,
578 struct gl_texture_image
*texImage
)
582 if (texImage
->Data
&& !texImage
->IsClientData
) {
583 /* free the old texture data */
584 _mesa_free_texmemory(texImage
->Data
);
587 texImage
->Data
= NULL
;
592 * Free texture image.
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
.FreeTexImageData
);
606 ctx
->Driver
.FreeTexImageData( ctx
, texImage
);
608 ASSERT(texImage
->Data
== NULL
);
609 if (texImage
->ImageOffsets
)
610 free(texImage
->ImageOffsets
);
616 * Test if a target is a proxy target.
618 * \param target texture target.
620 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
623 _mesa_is_proxy_texture(GLenum target
)
625 /* NUM_TEXTURE_TARGETS should match number of terms below */
626 assert(NUM_TEXTURE_TARGETS
== 7);
628 return (target
== GL_PROXY_TEXTURE_1D
||
629 target
== GL_PROXY_TEXTURE_2D
||
630 target
== GL_PROXY_TEXTURE_3D
||
631 target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
632 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
||
633 target
== GL_PROXY_TEXTURE_1D_ARRAY_EXT
||
634 target
== GL_PROXY_TEXTURE_2D_ARRAY_EXT
);
639 * Return the proxy target which corresponds to the given texture target
642 get_proxy_target(GLenum target
)
646 case GL_PROXY_TEXTURE_1D
:
647 return GL_PROXY_TEXTURE_1D
;
649 case GL_PROXY_TEXTURE_2D
:
650 return GL_PROXY_TEXTURE_2D
;
652 case GL_PROXY_TEXTURE_3D
:
653 return GL_PROXY_TEXTURE_3D
;
654 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
655 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
656 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
657 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
658 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
659 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
660 case GL_TEXTURE_CUBE_MAP_ARB
:
661 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
662 return GL_PROXY_TEXTURE_CUBE_MAP_ARB
;
663 case GL_TEXTURE_RECTANGLE_NV
:
664 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
665 return GL_PROXY_TEXTURE_RECTANGLE_NV
;
666 case GL_TEXTURE_1D_ARRAY_EXT
:
667 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
668 return GL_PROXY_TEXTURE_1D_ARRAY_EXT
;
669 case GL_TEXTURE_2D_ARRAY_EXT
:
670 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
671 return GL_PROXY_TEXTURE_2D_ARRAY_EXT
;
673 _mesa_problem(NULL
, "unexpected target in get_proxy_target()");
680 * Get the texture object that corresponds to the target of the given
683 * \param ctx GL context.
684 * \param texUnit texture unit.
685 * \param target texture target.
687 * \return pointer to the texture object on success, or NULL on failure.
689 * \sa gl_texture_unit.
691 struct gl_texture_object
*
692 _mesa_select_tex_object(struct gl_context
*ctx
,
693 const struct gl_texture_unit
*texUnit
,
698 return texUnit
->CurrentTex
[TEXTURE_1D_INDEX
];
699 case GL_PROXY_TEXTURE_1D
:
700 return ctx
->Texture
.ProxyTex
[TEXTURE_1D_INDEX
];
702 return texUnit
->CurrentTex
[TEXTURE_2D_INDEX
];
703 case GL_PROXY_TEXTURE_2D
:
704 return ctx
->Texture
.ProxyTex
[TEXTURE_2D_INDEX
];
706 return texUnit
->CurrentTex
[TEXTURE_3D_INDEX
];
707 case GL_PROXY_TEXTURE_3D
:
708 return ctx
->Texture
.ProxyTex
[TEXTURE_3D_INDEX
];
709 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
710 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
711 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
712 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
713 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
714 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
715 case GL_TEXTURE_CUBE_MAP_ARB
:
716 return ctx
->Extensions
.ARB_texture_cube_map
717 ? texUnit
->CurrentTex
[TEXTURE_CUBE_INDEX
] : NULL
;
718 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
719 return ctx
->Extensions
.ARB_texture_cube_map
720 ? ctx
->Texture
.ProxyTex
[TEXTURE_CUBE_INDEX
] : NULL
;
721 case GL_TEXTURE_RECTANGLE_NV
:
722 return ctx
->Extensions
.NV_texture_rectangle
723 ? texUnit
->CurrentTex
[TEXTURE_RECT_INDEX
] : NULL
;
724 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
725 return ctx
->Extensions
.NV_texture_rectangle
726 ? ctx
->Texture
.ProxyTex
[TEXTURE_RECT_INDEX
] : NULL
;
727 case GL_TEXTURE_1D_ARRAY_EXT
:
728 return ctx
->Extensions
.MESA_texture_array
729 ? texUnit
->CurrentTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
730 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
731 return ctx
->Extensions
.MESA_texture_array
732 ? ctx
->Texture
.ProxyTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
733 case GL_TEXTURE_2D_ARRAY_EXT
:
734 return ctx
->Extensions
.MESA_texture_array
735 ? texUnit
->CurrentTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
736 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
737 return ctx
->Extensions
.MESA_texture_array
738 ? ctx
->Texture
.ProxyTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
740 _mesa_problem(NULL
, "bad target in _mesa_select_tex_object()");
747 * Return pointer to texture object for given target on current texture unit.
749 struct gl_texture_object
*
750 _mesa_get_current_tex_object(struct gl_context
*ctx
, GLenum target
)
752 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
753 return _mesa_select_tex_object(ctx
, texUnit
, target
);
758 * Get a texture image pointer from a texture object, given a texture
759 * target and mipmap level. The target and level parameters should
760 * have already been error-checked.
762 * \param ctx GL context.
763 * \param texObj texture unit.
764 * \param target texture target.
765 * \param level image level.
767 * \return pointer to the texture image structure, or NULL on failure.
769 struct gl_texture_image
*
770 _mesa_select_tex_image(struct gl_context
*ctx
,
771 const struct gl_texture_object
*texObj
,
772 GLenum target
, GLint level
)
774 const GLuint face
= _mesa_tex_target_to_face(target
);
778 ASSERT(level
< MAX_TEXTURE_LEVELS
);
780 return texObj
->Image
[face
][level
];
785 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
786 * it and install it. Only return NULL if passed a bad parameter or run
789 struct gl_texture_image
*
790 _mesa_get_tex_image(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
791 GLenum target
, GLint level
)
793 struct gl_texture_image
*texImage
;
798 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
800 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
802 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "texture image allocation");
806 _mesa_set_tex_image(texObj
, target
, level
, texImage
);
814 * Return pointer to the specified proxy texture image.
815 * Note that proxy textures are per-context, not per-texture unit.
816 * \return pointer to texture image or NULL if invalid target, invalid
817 * level, or out of memory.
819 struct gl_texture_image
*
820 _mesa_get_proxy_tex_image(struct gl_context
*ctx
, GLenum target
, GLint level
)
822 struct gl_texture_image
*texImage
;
829 case GL_PROXY_TEXTURE_1D
:
830 if (level
>= ctx
->Const
.MaxTextureLevels
)
832 texIndex
= TEXTURE_1D_INDEX
;
834 case GL_PROXY_TEXTURE_2D
:
835 if (level
>= ctx
->Const
.MaxTextureLevels
)
837 texIndex
= TEXTURE_2D_INDEX
;
839 case GL_PROXY_TEXTURE_3D
:
840 if (level
>= ctx
->Const
.Max3DTextureLevels
)
842 texIndex
= TEXTURE_3D_INDEX
;
844 case GL_PROXY_TEXTURE_CUBE_MAP
:
845 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
847 texIndex
= TEXTURE_CUBE_INDEX
;
849 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
852 texIndex
= TEXTURE_RECT_INDEX
;
854 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
855 if (level
>= ctx
->Const
.MaxTextureLevels
)
857 texIndex
= TEXTURE_1D_ARRAY_INDEX
;
859 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
860 if (level
>= ctx
->Const
.MaxTextureLevels
)
862 texIndex
= TEXTURE_2D_ARRAY_INDEX
;
868 texImage
= ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
];
870 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
872 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "proxy texture allocation");
875 ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
] = texImage
;
876 /* Set the 'back' pointer */
877 texImage
->TexObject
= ctx
->Texture
.ProxyTex
[texIndex
];
884 * Get the maximum number of allowed mipmap levels.
886 * \param ctx GL context.
887 * \param target texture target.
889 * \return the maximum number of allowed mipmap levels for the given
890 * texture target, or zero if passed a bad target.
895 _mesa_max_texture_levels(struct gl_context
*ctx
, GLenum target
)
899 case GL_PROXY_TEXTURE_1D
:
901 case GL_PROXY_TEXTURE_2D
:
902 return ctx
->Const
.MaxTextureLevels
;
904 case GL_PROXY_TEXTURE_3D
:
905 return ctx
->Const
.Max3DTextureLevels
;
906 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
907 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
908 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
909 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
910 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
911 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
912 case GL_TEXTURE_CUBE_MAP_ARB
:
913 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
914 return ctx
->Extensions
.ARB_texture_cube_map
915 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
916 case GL_TEXTURE_RECTANGLE_NV
:
917 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
918 return ctx
->Extensions
.NV_texture_rectangle
? 1 : 0;
919 case GL_TEXTURE_1D_ARRAY_EXT
:
920 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
921 case GL_TEXTURE_2D_ARRAY_EXT
:
922 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
923 return ctx
->Extensions
.MESA_texture_array
924 ? ctx
->Const
.MaxTextureLevels
: 0;
926 return 0; /* bad target */
932 * Return number of dimensions per mipmap level for the given texture target.
935 get_texture_dimensions(GLenum target
)
939 case GL_PROXY_TEXTURE_1D
:
942 case GL_TEXTURE_RECTANGLE
:
943 case GL_TEXTURE_CUBE_MAP
:
944 case GL_PROXY_TEXTURE_2D
:
945 case GL_PROXY_TEXTURE_RECTANGLE
:
946 case GL_PROXY_TEXTURE_CUBE_MAP
:
947 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
948 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
949 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
950 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
951 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
952 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
953 case GL_TEXTURE_1D_ARRAY
:
954 case GL_PROXY_TEXTURE_1D_ARRAY
:
957 case GL_PROXY_TEXTURE_3D
:
958 case GL_TEXTURE_2D_ARRAY
:
959 case GL_PROXY_TEXTURE_2D_ARRAY
:
962 _mesa_problem(NULL
, "invalid target 0x%x in get_texture_dimensions()",
971 #if 000 /* not used anymore */
973 * glTexImage[123]D can accept a NULL image pointer. In this case we
974 * create a texture image with unspecified image contents per the OpenGL
978 make_null_texture(GLint width
, GLint height
, GLint depth
, GLenum format
)
980 const GLint components
= _mesa_components_in_format(format
);
981 const GLint numPixels
= width
* height
* depth
;
982 GLubyte
*data
= (GLubyte
*) MALLOC(numPixels
* components
* sizeof(GLubyte
));
986 * Let's see if anyone finds this. If glTexImage2D() is called with
987 * a NULL image pointer then load the texture image with something
988 * interesting instead of leaving it indeterminate.
991 static const char message
[8][32] = {
995 " X X XXXX XXX XXXXX ",
998 " X X XXXXX XXX X X ",
1002 GLubyte
*imgPtr
= data
;
1004 for (h
= 0; h
< depth
; h
++) {
1005 for (i
= 0; i
< height
; i
++) {
1006 GLint srcRow
= 7 - (i
% 8);
1007 for (j
= 0; j
< width
; j
++) {
1008 GLint srcCol
= j
% 32;
1009 GLubyte texel
= (message
[srcRow
][srcCol
]=='X') ? 255 : 70;
1010 for (k
= 0; k
< components
; k
++) {
1026 * Reset the fields of a gl_texture_image struct to zero.
1028 * \param img texture image structure.
1030 * This is called when a proxy texture test fails, we set all the
1031 * image members (except DriverData) to zero.
1032 * It's also used in glTexImage[123]D as a safeguard to be sure all
1033 * required fields get initialized properly by the Driver.TexImage[123]D
1037 clear_teximage_fields(struct gl_texture_image
*img
)
1040 img
->_BaseFormat
= 0;
1041 img
->InternalFormat
= 0;
1047 if (img
->ImageOffsets
) {
1048 free(img
->ImageOffsets
);
1049 img
->ImageOffsets
= NULL
;
1055 img
->HeightLog2
= 0;
1058 img
->TexFormat
= MESA_FORMAT_NONE
;
1059 img
->FetchTexelc
= NULL
;
1060 img
->FetchTexelf
= NULL
;
1065 * Initialize basic fields of the gl_texture_image struct.
1067 * \param ctx GL context.
1068 * \param target texture target (GL_TEXTURE_1D, GL_TEXTURE_RECTANGLE, etc).
1069 * \param img texture image structure to be initialized.
1070 * \param width image width.
1071 * \param height image height.
1072 * \param depth image depth.
1073 * \param border image border.
1074 * \param internalFormat internal format.
1075 * \param format the actual hardware format (one of MESA_FORMAT_*)
1077 * Fills in the fields of \p img with the given information.
1078 * Note: width, height and depth include the border.
1081 _mesa_init_teximage_fields(struct gl_context
*ctx
, GLenum target
,
1082 struct gl_texture_image
*img
,
1083 GLsizei width
, GLsizei height
, GLsizei depth
,
1084 GLint border
, GLenum internalFormat
,
1091 ASSERT(height
>= 0);
1094 img
->_BaseFormat
= _mesa_base_tex_format( ctx
, internalFormat
);
1095 ASSERT(img
->_BaseFormat
> 0);
1096 img
->InternalFormat
= internalFormat
;
1097 img
->Border
= border
;
1099 img
->Height
= height
;
1102 img
->Width2
= width
- 2 * border
; /* == 1 << img->WidthLog2; */
1103 img
->WidthLog2
= logbase2(img
->Width2
);
1105 if (height
== 1) { /* 1-D texture */
1107 img
->HeightLog2
= 0;
1110 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1111 img
->HeightLog2
= logbase2(img
->Height2
);
1114 if (depth
== 1) { /* 2-D texture */
1119 img
->Depth2
= depth
- 2 * border
; /* == 1 << img->DepthLog2; */
1120 img
->DepthLog2
= logbase2(img
->Depth2
);
1123 img
->MaxLog2
= MAX2(img
->WidthLog2
, img
->HeightLog2
);
1125 if ((width
== 1 || _mesa_is_pow_two(img
->Width2
)) &&
1126 (height
== 1 || _mesa_is_pow_two(img
->Height2
)) &&
1127 (depth
== 1 || _mesa_is_pow_two(img
->Depth2
)))
1128 img
->_IsPowerOfTwo
= GL_TRUE
;
1130 img
->_IsPowerOfTwo
= GL_FALSE
;
1132 /* RowStride and ImageOffsets[] describe how to address texels in 'Data' */
1133 img
->RowStride
= width
;
1134 /* Allocate the ImageOffsets array and initialize to typical values.
1135 * We allocate the array for 1D/2D textures too in order to avoid special-
1136 * case code in the texstore routines.
1138 if (img
->ImageOffsets
)
1139 free(img
->ImageOffsets
);
1140 img
->ImageOffsets
= (GLuint
*) malloc(depth
* sizeof(GLuint
));
1141 for (i
= 0; i
< depth
; i
++) {
1142 img
->ImageOffsets
[i
] = i
* width
* height
;
1145 /* Compute Width/Height/DepthScale for mipmap lod computation */
1146 if (target
== GL_TEXTURE_RECTANGLE_NV
) {
1147 /* scale = 1.0 since texture coords directly map to texels */
1148 img
->WidthScale
= 1.0;
1149 img
->HeightScale
= 1.0;
1150 img
->DepthScale
= 1.0;
1153 img
->WidthScale
= (GLfloat
) img
->Width
;
1154 img
->HeightScale
= (GLfloat
) img
->Height
;
1155 img
->DepthScale
= (GLfloat
) img
->Depth
;
1158 img
->TexFormat
= format
;
1160 dims
= get_texture_dimensions(target
);
1162 _mesa_set_fetch_functions(img
, dims
);
1167 * Free and clear fields of the gl_texture_image struct.
1169 * \param ctx GL context.
1170 * \param texImage texture image structure to be cleared.
1172 * After the call, \p texImage will have no data associated with it. Its
1173 * fields are cleared so that its parent object will test incomplete.
1176 _mesa_clear_texture_image(struct gl_context
*ctx
,
1177 struct gl_texture_image
*texImage
)
1179 ctx
->Driver
.FreeTexImageData(ctx
, texImage
);
1180 clear_teximage_fields(texImage
);
1185 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1186 * level, width, height and depth against the ctx->Const limits for textures.
1188 * A hardware driver might override this function if, for example, the
1189 * max 3D texture size is 512x512x64 (i.e. not a cube).
1191 * Note that width, height, depth == 0 is not an error. However, a
1192 * texture with zero width/height/depth will be considered "incomplete"
1193 * and texturing will effectively be disabled.
1195 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1196 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1197 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1198 * \param level as passed to glTexImage
1199 * \param internalFormat as passed to glTexImage
1200 * \param format as passed to glTexImage
1201 * \param type as passed to glTexImage
1202 * \param width as passed to glTexImage
1203 * \param height as passed to glTexImage
1204 * \param depth as passed to glTexImage
1205 * \param border as passed to glTexImage
1206 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1209 _mesa_test_proxy_teximage(struct gl_context
*ctx
, GLenum target
, GLint level
,
1210 GLint internalFormat
, GLenum format
, GLenum type
,
1211 GLint width
, GLint height
, GLint depth
, GLint border
)
1215 (void) internalFormat
;
1220 case GL_PROXY_TEXTURE_1D
:
1221 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1222 if (width
< 2 * border
|| width
> 2 + maxSize
)
1224 if (level
>= ctx
->Const
.MaxTextureLevels
)
1226 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1227 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1232 case GL_PROXY_TEXTURE_2D
:
1233 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1234 if (width
< 2 * border
|| width
> 2 + maxSize
)
1236 if (height
< 2 * border
|| height
> 2 + maxSize
)
1238 if (level
>= ctx
->Const
.MaxTextureLevels
)
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_3D
:
1249 maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
1250 if (width
< 2 * border
|| width
> 2 + maxSize
)
1252 if (height
< 2 * border
|| height
> 2 + maxSize
)
1254 if (depth
< 2 * border
|| depth
> 2 + maxSize
)
1256 if (level
>= ctx
->Const
.Max3DTextureLevels
)
1258 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1259 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1261 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1263 if (depth
> 0 && !_mesa_is_pow_two(depth
- 2 * border
))
1268 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1269 maxSize
= ctx
->Const
.MaxTextureRectSize
;
1270 if (width
< 0 || width
> maxSize
)
1272 if (height
< 0 || height
> maxSize
)
1278 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
1279 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1280 if (width
< 2 * border
|| width
> 2 + maxSize
)
1282 if (height
< 2 * border
|| height
> 2 + maxSize
)
1284 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
1286 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1287 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1289 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1294 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1295 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1296 if (width
< 2 * border
|| width
> 2 + maxSize
)
1298 if (height
< 1 || height
> ctx
->Const
.MaxArrayTextureLayers
)
1300 if (level
>= ctx
->Const
.MaxTextureLevels
)
1302 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1303 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1308 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1309 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1310 if (width
< 2 * border
|| width
> 2 + maxSize
)
1312 if (height
< 2 * border
|| height
> 2 + maxSize
)
1314 if (depth
< 1 || depth
> ctx
->Const
.MaxArrayTextureLayers
)
1316 if (level
>= ctx
->Const
.MaxTextureLevels
)
1318 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1319 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1321 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1327 _mesa_problem(ctx
, "Invalid target in _mesa_test_proxy_teximage");
1334 * Check if the memory used by the texture would exceed the driver's limit.
1335 * This lets us support a max 3D texture size of 8K (for example) but
1336 * prevents allocating a full 8K x 8K x 8K texture.
1337 * XXX this could be rolled into the proxy texture size test (above) but
1338 * we don't have the actual texture internal format at that point.
1341 legal_texture_size(struct gl_context
*ctx
, gl_format format
,
1342 GLint width
, GLint height
, GLint depth
)
1344 uint64_t bytes
= _mesa_format_image_size64(format
, width
, height
, depth
);
1345 uint64_t mbytes
= bytes
/ (1024 * 1024); /* convert to MB */
1346 return mbytes
<= (uint64_t) ctx
->Const
.MaxTextureMbytes
;
1352 * Helper function to determine whether a target and specific compression
1353 * format are supported.
1356 target_can_be_compressed(const struct gl_context
*ctx
, GLenum target
,
1359 (void) intFormat
; /* not used yet */
1363 case GL_PROXY_TEXTURE_2D
:
1364 return GL_TRUE
; /* true for any compressed format so far */
1365 case GL_PROXY_TEXTURE_CUBE_MAP
:
1366 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1367 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1368 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1369 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1370 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1371 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1372 return ctx
->Extensions
.ARB_texture_cube_map
;
1373 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1374 case GL_TEXTURE_2D_ARRAY_EXT
:
1375 return ctx
->Extensions
.MESA_texture_array
;
1383 * Check if the given texture target value is legal for a
1384 * glTexImage1/2/3D call.
1387 legal_teximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1393 case GL_PROXY_TEXTURE_1D
:
1401 case GL_PROXY_TEXTURE_2D
:
1403 case GL_PROXY_TEXTURE_CUBE_MAP
:
1404 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1405 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1406 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1407 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1408 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1409 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1410 return ctx
->Extensions
.ARB_texture_cube_map
;
1411 case GL_TEXTURE_RECTANGLE_NV
:
1412 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1413 return ctx
->Extensions
.NV_texture_rectangle
;
1414 case GL_TEXTURE_1D_ARRAY_EXT
:
1415 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1416 return ctx
->Extensions
.MESA_texture_array
;
1423 case GL_PROXY_TEXTURE_3D
:
1425 case GL_TEXTURE_2D_ARRAY_EXT
:
1426 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1427 return ctx
->Extensions
.MESA_texture_array
;
1432 _mesa_problem(ctx
, "invalid dims=%u in legal_teximage_target()", dims
);
1439 * Check if the given texture target value is legal for a
1440 * glCopyTexImage1/2D call.
1443 legal_copyteximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1447 return target
== GL_TEXTURE_1D
;
1452 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1453 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1454 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1455 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1456 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1457 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1458 return ctx
->Extensions
.ARB_texture_cube_map
;
1459 case GL_TEXTURE_RECTANGLE_NV
:
1460 return ctx
->Extensions
.NV_texture_rectangle
;
1461 case GL_TEXTURE_1D_ARRAY_EXT
:
1462 return ctx
->Extensions
.MESA_texture_array
;
1467 _mesa_problem(ctx
, "invalid dims=%u in legal_copyteximage_target()", dims
);
1474 * Test the glTexImage[123]D() parameters for errors.
1476 * \param ctx GL context.
1477 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1478 * \param target texture target given by the user.
1479 * \param level image level given by the user.
1480 * \param internalFormat internal format given by the user.
1481 * \param format pixel data format given by the user.
1482 * \param type pixel data type given by the user.
1483 * \param width image width given by the user.
1484 * \param height image height given by the user.
1485 * \param depth image depth given by the user.
1486 * \param border image border given by the user.
1488 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1490 * Verifies each of the parameters against the constants specified in
1491 * __struct gl_contextRec::Const and the supported extensions, and according
1492 * to the OpenGL specification.
1495 texture_error_check( struct gl_context
*ctx
,
1496 GLuint dimensions
, GLenum target
,
1497 GLint level
, GLint internalFormat
,
1498 GLenum format
, GLenum type
,
1499 GLint width
, GLint height
,
1500 GLint depth
, GLint border
)
1502 const GLenum proxyTarget
= get_proxy_target(target
);
1503 const GLboolean isProxy
= target
== proxyTarget
;
1504 GLboolean sizeOK
= GL_TRUE
;
1505 GLboolean colorFormat
, indexFormat
;
1507 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1508 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1510 _mesa_error(ctx
, GL_INVALID_VALUE
,
1511 "glTexImage%dD(level=%d)", dimensions
, level
);
1517 if (border
< 0 || border
> 1 ||
1518 ((target
== GL_TEXTURE_RECTANGLE_NV
||
1519 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1521 _mesa_error(ctx
, GL_INVALID_VALUE
,
1522 "glTexImage%dD(border=%d)", dimensions
, border
);
1527 if (width
< 0 || height
< 0 || depth
< 0) {
1529 _mesa_error(ctx
, GL_INVALID_VALUE
,
1530 "glTexImage%dD(width, height or depth < 0)", dimensions
);
1535 /* Do this simple check before calling the TestProxyTexImage() function */
1536 if (proxyTarget
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
) {
1537 sizeOK
= (width
== height
);
1541 * Use the proxy texture driver hook to see if the size/level/etc are
1544 sizeOK
= sizeOK
&& ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
1545 internalFormat
, format
,
1546 type
, width
, height
,
1550 _mesa_error(ctx
, GL_INVALID_VALUE
,
1551 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1552 dimensions
, level
, width
, height
, depth
);
1557 /* Check internalFormat */
1558 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1560 _mesa_error(ctx
, GL_INVALID_VALUE
,
1561 "glTexImage%dD(internalFormat=%s)",
1562 dimensions
, _mesa_lookup_enum_by_nr(internalFormat
));
1567 /* Check incoming image format and type */
1568 if (!_mesa_is_legal_format_and_type(ctx
, format
, type
)) {
1569 /* Normally, GL_INVALID_OPERATION is generated by a format/type
1570 * mismatch (see the 1.2 spec page 94, sec 3.6.4.). But with the
1571 * GL_EXT_texture_integer extension, some combinations should generate
1572 * GL_INVALID_ENUM instead (grr!).
1575 GLenum error
= _mesa_is_integer_format(format
)
1576 ? GL_INVALID_ENUM
: GL_INVALID_OPERATION
;
1577 _mesa_error(ctx
, error
,
1578 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1579 dimensions
, format
, type
);
1584 /* make sure internal format and format basically agree */
1585 colorFormat
= _mesa_is_color_format(format
);
1586 indexFormat
= _mesa_is_index_format(format
);
1587 if ((_mesa_is_color_format(internalFormat
) && !colorFormat
&& !indexFormat
) ||
1588 (_mesa_is_index_format(internalFormat
) && !indexFormat
) ||
1589 (_mesa_is_depth_format(internalFormat
) != _mesa_is_depth_format(format
)) ||
1590 (_mesa_is_ycbcr_format(internalFormat
) != _mesa_is_ycbcr_format(format
)) ||
1591 (_mesa_is_depthstencil_format(internalFormat
) != _mesa_is_depthstencil_format(format
)) ||
1592 (_mesa_is_dudv_format(internalFormat
) != _mesa_is_dudv_format(format
))) {
1594 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1595 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1596 dimensions
, internalFormat
, format
);
1600 /* additional checks for ycbcr textures */
1601 if (internalFormat
== GL_YCBCR_MESA
) {
1602 ASSERT(ctx
->Extensions
.MESA_ycbcr_texture
);
1603 if (type
!= GL_UNSIGNED_SHORT_8_8_MESA
&&
1604 type
!= GL_UNSIGNED_SHORT_8_8_REV_MESA
) {
1606 _mesa_snprintf(message
, sizeof(message
),
1607 "glTexImage%dD(format/type YCBCR mismatch", dimensions
);
1608 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", message
);
1609 return GL_TRUE
; /* error */
1611 if (target
!= GL_TEXTURE_2D
&&
1612 target
!= GL_PROXY_TEXTURE_2D
&&
1613 target
!= GL_TEXTURE_RECTANGLE_NV
&&
1614 target
!= GL_PROXY_TEXTURE_RECTANGLE_NV
) {
1616 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexImage(target)");
1622 _mesa_snprintf(message
, sizeof(message
),
1623 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1624 dimensions
, border
);
1625 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", message
);
1631 /* additional checks for depth textures */
1632 if (_mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_COMPONENT
) {
1633 /* Only 1D, 2D and rectangular textures supported, not 3D or cubes */
1634 if (target
!= GL_TEXTURE_1D
&&
1635 target
!= GL_PROXY_TEXTURE_1D
&&
1636 target
!= GL_TEXTURE_2D
&&
1637 target
!= GL_PROXY_TEXTURE_2D
&&
1638 target
!= GL_TEXTURE_RECTANGLE_ARB
&&
1639 target
!= GL_PROXY_TEXTURE_RECTANGLE_ARB
) {
1641 _mesa_error(ctx
, GL_INVALID_ENUM
,
1642 "glTexImage(target/internalFormat)");
1647 /* additional checks for compressed textures */
1648 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
1649 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1651 _mesa_error(ctx
, GL_INVALID_ENUM
,
1652 "glTexImage%dD(target)", dimensions
);
1657 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1658 "glTexImage%dD(border!=0)", dimensions
);
1664 /* additional checks for integer textures */
1665 if (ctx
->Extensions
.EXT_texture_integer
&&
1666 (_mesa_is_integer_format(format
) !=
1667 _mesa_is_integer_format(internalFormat
))) {
1669 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1670 "glTexImage%dD(integer/non-integer format mismatch)",
1676 /* if we get here, the parameters are OK */
1682 * Test glTexSubImage[123]D() parameters for errors.
1684 * \param ctx GL context.
1685 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1686 * \param target texture target given by the user.
1687 * \param level image level given by the user.
1688 * \param xoffset sub-image x offset given by the user.
1689 * \param yoffset sub-image y offset given by the user.
1690 * \param zoffset sub-image z offset given by the user.
1691 * \param format pixel data format given by the user.
1692 * \param type pixel data type given by the user.
1693 * \param width image width given by the user.
1694 * \param height image height given by the user.
1695 * \param depth image depth given by the user.
1697 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1699 * Verifies each of the parameters against the constants specified in
1700 * __struct gl_contextRec::Const and the supported extensions, and according
1701 * to the OpenGL specification.
1704 subtexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
1705 GLenum target
, GLint level
,
1706 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1707 GLint width
, GLint height
, GLint depth
,
1708 GLenum format
, GLenum type
)
1710 /* Basic level check */
1711 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1712 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage2D(level=%d)", level
);
1716 /* Check for negative sizes */
1718 _mesa_error(ctx
, GL_INVALID_VALUE
,
1719 "glTexSubImage%dD(width=%d)", dimensions
, width
);
1722 if (height
< 0 && dimensions
> 1) {
1723 _mesa_error(ctx
, GL_INVALID_VALUE
,
1724 "glTexSubImage%dD(height=%d)", dimensions
, height
);
1727 if (depth
< 0 && dimensions
> 2) {
1728 _mesa_error(ctx
, GL_INVALID_VALUE
,
1729 "glTexSubImage%dD(depth=%d)", dimensions
, depth
);
1733 if (!_mesa_is_legal_format_and_type(ctx
, format
, type
)) {
1734 /* As with the glTexImage2D check above, the error code here
1735 * depends on texture integer.
1737 GLenum error
= _mesa_is_integer_format(format
)
1738 ? GL_INVALID_OPERATION
: GL_INVALID_ENUM
;
1739 _mesa_error(ctx
, error
,
1740 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
1741 dimensions
, format
, type
);
1750 * Do second part of glTexSubImage which depends on the destination texture.
1751 * \return GL_TRUE if error recorded, GL_FALSE otherwise
1754 subtexture_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
1755 GLenum target
, GLint level
,
1756 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1757 GLint width
, GLint height
, GLint depth
,
1758 GLenum format
, GLenum type
,
1759 const struct gl_texture_image
*destTex
)
1762 /* undefined image level */
1763 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexSubImage%dD", dimensions
);
1767 if (xoffset
< -((GLint
)destTex
->Border
)) {
1768 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset)",
1772 if (xoffset
+ width
> (GLint
) (destTex
->Width
+ destTex
->Border
)) {
1773 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset+width)",
1777 if (dimensions
> 1) {
1778 if (yoffset
< -((GLint
)destTex
->Border
)) {
1779 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset)",
1783 if (yoffset
+ height
> (GLint
) (destTex
->Height
+ destTex
->Border
)) {
1784 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset+height)",
1789 if (dimensions
> 2) {
1790 if (zoffset
< -((GLint
)destTex
->Border
)) {
1791 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset)");
1794 if (zoffset
+ depth
> (GLint
) (destTex
->Depth
+ destTex
->Border
)) {
1795 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset+depth)");
1800 if (_mesa_is_format_compressed(destTex
->TexFormat
)) {
1803 /* do tests which depend on compression block size */
1804 _mesa_get_format_block_size(destTex
->TexFormat
, &bw
, &bh
);
1806 /* offset must be multiple of block size */
1807 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0)) {
1808 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1809 "glTexSubImage%dD(xoffset = %d, yoffset = %d)",
1810 dimensions
, xoffset
, yoffset
);
1813 /* size must be multiple of bw by bh or equal to whole texture size */
1814 if ((width
% bw
!= 0) && (GLuint
) width
!= destTex
->Width
) {
1815 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1816 "glTexSubImage%dD(width = %d)", dimensions
, width
);
1819 if ((height
% bh
!= 0) && (GLuint
) height
!= destTex
->Height
) {
1820 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1821 "glTexSubImage%dD(height = %d)", dimensions
, height
);
1831 * Test glCopyTexImage[12]D() parameters for errors.
1833 * \param ctx GL context.
1834 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1835 * \param target texture target given by the user.
1836 * \param level image level given by the user.
1837 * \param internalFormat internal format given by the user.
1838 * \param width image width given by the user.
1839 * \param height image height given by the user.
1840 * \param border texture border.
1842 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1844 * Verifies each of the parameters against the constants specified in
1845 * __struct gl_contextRec::Const and the supported extensions, and according
1846 * to the OpenGL specification.
1849 copytexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
1850 GLenum target
, GLint level
, GLint internalFormat
,
1851 GLint width
, GLint height
, GLint border
)
1853 const GLenum proxyTarget
= get_proxy_target(target
);
1854 const GLenum type
= GL_FLOAT
;
1859 if (!legal_copyteximage_target(ctx
, dimensions
, target
)) {
1860 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexImage%uD(target=%s)",
1861 dimensions
, _mesa_lookup_enum_by_nr(target
));
1865 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1866 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1867 _mesa_error(ctx
, GL_INVALID_VALUE
,
1868 "glCopyTexImage%dD(level=%d)", dimensions
, level
);
1872 /* Check that the source buffer is complete */
1873 if (ctx
->ReadBuffer
->Name
) {
1874 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
1875 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1876 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
1877 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
1883 if (border
< 0 || border
> 1 ||
1884 ((target
== GL_TEXTURE_RECTANGLE_NV
||
1885 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1889 format
= _mesa_base_tex_format(ctx
, internalFormat
);
1891 _mesa_error(ctx
, GL_INVALID_VALUE
,
1892 "glCopyTexImage%dD(internalFormat)", dimensions
);
1896 if (!_mesa_source_buffer_exists(ctx
, format
)) {
1897 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1898 "glCopyTexImage%dD(missing readbuffer)", dimensions
);
1902 /* Do size, level checking */
1903 sizeOK
= (proxyTarget
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
)
1904 ? (width
== height
) : 1;
1906 sizeOK
= sizeOK
&& ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
1907 internalFormat
, format
,
1908 type
, width
, height
,
1912 if (dimensions
== 1) {
1913 _mesa_error(ctx
, GL_INVALID_VALUE
,
1914 "glCopyTexImage1D(width=%d)", width
);
1917 ASSERT(dimensions
== 2);
1918 _mesa_error(ctx
, GL_INVALID_VALUE
,
1919 "glCopyTexImage2D(width=%d, height=%d)", width
, height
);
1924 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
1925 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1926 _mesa_error(ctx
, GL_INVALID_ENUM
,
1927 "glCopyTexImage%dD(target)", dimensions
);
1931 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1932 "glCopyTexImage%dD(border!=0)", dimensions
);
1936 else if (_mesa_is_depth_format(internalFormat
)) {
1937 /* make sure we have depth/stencil buffers */
1938 if (!ctx
->ReadBuffer
->_DepthBuffer
) {
1939 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1940 "glCopyTexImage%dD(no depth)", dimensions
);
1944 else if (_mesa_is_depthstencil_format(internalFormat
)) {
1945 /* make sure we have depth/stencil buffers */
1946 if (!ctx
->ReadBuffer
->_DepthBuffer
|| !ctx
->ReadBuffer
->_StencilBuffer
) {
1947 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1948 "glCopyTexImage%dD(no depth/stencil buffer)", dimensions
);
1953 /* if we get here, the parameters are OK */
1959 * Test glCopyTexSubImage[12]D() parameters for errors.
1960 * Note that this is the first part of error checking.
1961 * See also copytexsubimage_error_check2() below for the second part.
1963 * \param ctx GL context.
1964 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1965 * \param target texture target given by the user.
1966 * \param level image level given by the user.
1968 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1971 copytexsubimage_error_check1( struct gl_context
*ctx
, GLuint dimensions
,
1972 GLenum target
, GLint level
)
1974 /* Check that the source buffer is complete */
1975 if (ctx
->ReadBuffer
->Name
) {
1976 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
1977 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1978 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
1979 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
1984 /* check target (proxies not allowed) */
1985 if (!legal_teximage_target(ctx
, dimensions
, target
) ||
1986 _mesa_is_proxy_texture(target
)) {
1987 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexSubImage%uD(target=%s)",
1988 dimensions
, _mesa_lookup_enum_by_nr(target
));
1993 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1994 _mesa_error(ctx
, GL_INVALID_VALUE
,
1995 "glCopyTexSubImage%dD(level=%d)", dimensions
, level
);
2004 * Second part of error checking for glCopyTexSubImage[12]D().
2005 * \param xoffset sub-image x offset given by the user.
2006 * \param yoffset sub-image y offset given by the user.
2007 * \param zoffset sub-image z offset given by the user.
2008 * \param width image width given by the user.
2009 * \param height image height given by the user.
2012 copytexsubimage_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
2013 GLenum target
, GLint level
,
2014 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2015 GLsizei width
, GLsizei height
,
2016 const struct gl_texture_image
*teximage
)
2018 /* check that dest tex image exists */
2020 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2021 "glCopyTexSubImage%dD(undefined texture level: %d)",
2028 _mesa_error(ctx
, GL_INVALID_VALUE
,
2029 "glCopyTexSubImage%dD(width=%d)", dimensions
, width
);
2032 if (dimensions
> 1 && height
< 0) {
2033 _mesa_error(ctx
, GL_INVALID_VALUE
,
2034 "glCopyTexSubImage%dD(height=%d)", dimensions
, height
);
2038 /* check x/y offsets */
2039 if (xoffset
< -((GLint
)teximage
->Border
)) {
2040 _mesa_error(ctx
, GL_INVALID_VALUE
,
2041 "glCopyTexSubImage%dD(xoffset=%d)", dimensions
, xoffset
);
2044 if (xoffset
+ width
> (GLint
) (teximage
->Width
+ teximage
->Border
)) {
2045 _mesa_error(ctx
, GL_INVALID_VALUE
,
2046 "glCopyTexSubImage%dD(xoffset+width)", dimensions
);
2049 if (dimensions
> 1) {
2050 if (yoffset
< -((GLint
)teximage
->Border
)) {
2051 _mesa_error(ctx
, GL_INVALID_VALUE
,
2052 "glCopyTexSubImage%dD(yoffset=%d)", dimensions
, yoffset
);
2055 /* NOTE: we're adding the border here, not subtracting! */
2056 if (yoffset
+ height
> (GLint
) (teximage
->Height
+ teximage
->Border
)) {
2057 _mesa_error(ctx
, GL_INVALID_VALUE
,
2058 "glCopyTexSubImage%dD(yoffset+height)", dimensions
);
2063 /* check z offset */
2064 if (dimensions
> 2) {
2065 if (zoffset
< -((GLint
)teximage
->Border
)) {
2066 _mesa_error(ctx
, GL_INVALID_VALUE
,
2067 "glCopyTexSubImage%dD(zoffset)", dimensions
);
2070 if (zoffset
> (GLint
) (teximage
->Depth
+ teximage
->Border
)) {
2071 _mesa_error(ctx
, GL_INVALID_VALUE
,
2072 "glCopyTexSubImage%dD(zoffset+depth)", dimensions
);
2077 if (_mesa_is_format_compressed(teximage
->TexFormat
)) {
2078 /* offset must be multiple of 4 */
2079 if ((xoffset
& 3) || (yoffset
& 3)) {
2080 _mesa_error(ctx
, GL_INVALID_VALUE
,
2081 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions
);
2084 /* size must be multiple of 4 */
2085 if ((width
& 3) != 0 && (GLuint
) width
!= teximage
->Width
) {
2086 _mesa_error(ctx
, GL_INVALID_VALUE
,
2087 "glCopyTexSubImage%dD(width)", dimensions
);
2090 if ((height
& 3) != 0 && (GLuint
) height
!= teximage
->Height
) {
2091 _mesa_error(ctx
, GL_INVALID_VALUE
,
2092 "glCopyTexSubImage%dD(height)", dimensions
);
2097 if (teximage
->InternalFormat
== GL_YCBCR_MESA
) {
2098 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glCopyTexSubImage2D");
2102 if (!_mesa_source_buffer_exists(ctx
, teximage
->_BaseFormat
)) {
2103 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2104 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2105 dimensions
, teximage
->_BaseFormat
);
2109 if (teximage
->_BaseFormat
== GL_DEPTH_COMPONENT
) {
2110 if (!ctx
->ReadBuffer
->_DepthBuffer
) {
2111 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2112 "glCopyTexSubImage%dD(no depth buffer)",
2117 else if (teximage
->_BaseFormat
== GL_DEPTH_STENCIL_EXT
) {
2118 if (!ctx
->ReadBuffer
->_DepthBuffer
|| !ctx
->ReadBuffer
->_StencilBuffer
) {
2119 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2120 "glCopyTexSubImage%dD(no depth/stencil buffer)",
2126 /* If copying into an integer texture, the source buffer must also be
2129 if (_mesa_is_format_integer_color(teximage
->TexFormat
)) {
2130 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2131 if (!_mesa_is_format_integer_color(rb
->Format
)) {
2132 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2133 "glCopyTexSubImage%dD(source buffer is not integer format)",
2139 /* if we get here, the parameters are OK */
2144 /** Callback info for walking over FBO hash table */
2147 struct gl_context
*ctx
;
2148 struct gl_texture_object
*texObj
;
2154 * Check render to texture callback. Called from _mesa_HashWalk().
2157 check_rtt_cb(GLuint key
, void *data
, void *userData
)
2159 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2160 const struct cb_info
*info
= (struct cb_info
*) userData
;
2161 struct gl_context
*ctx
= info
->ctx
;
2162 const struct gl_texture_object
*texObj
= info
->texObj
;
2163 const GLuint level
= info
->level
, face
= info
->face
;
2165 /* If this is a user-created FBO */
2168 /* check if any of the FBO's attachments point to 'texObj' */
2169 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2170 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2171 if (att
->Type
== GL_TEXTURE
&&
2172 att
->Texture
== texObj
&&
2173 att
->TextureLevel
== level
&&
2174 att
->CubeMapFace
== face
) {
2175 ASSERT(att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
]);
2176 /* Tell driver about the new renderbuffer texture */
2177 ctx
->Driver
.RenderTexture(ctx
, ctx
->DrawBuffer
, att
);
2178 /* Mark fb status as indeterminate to force re-validation */
2187 * When a texture image is specified we have to check if it's bound to
2188 * any framebuffer objects (render to texture) in order to detect changes
2189 * in size or format since that effects FBO completeness.
2190 * Any FBOs rendering into the texture must be re-validated.
2193 update_fbo_texture(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
2194 GLuint face
, GLuint level
)
2196 /* Only check this texture if it's been marked as RenderToTexture */
2197 if (texObj
->_RenderToTexture
) {
2198 struct cb_info info
;
2200 info
.texObj
= texObj
;
2203 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, check_rtt_cb
, &info
);
2209 * If the texture object's GenerateMipmap flag is set and we've
2210 * changed the texture base level image, regenerate the rest of the
2211 * mipmap levels now.
2214 check_gen_mipmap(struct gl_context
*ctx
, GLenum target
,
2215 struct gl_texture_object
*texObj
, GLint level
)
2217 ASSERT(target
!= GL_TEXTURE_CUBE_MAP
);
2218 if (texObj
->GenerateMipmap
&&
2219 level
== texObj
->BaseLevel
&&
2220 level
< texObj
->MaxLevel
) {
2221 ASSERT(ctx
->Driver
.GenerateMipmap
);
2222 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2227 /** Debug helper: override the user-requested internal format */
2229 override_internal_format(GLenum internalFormat
, GLint width
, GLint height
)
2232 if (internalFormat
== GL_RGBA16F_ARB
||
2233 internalFormat
== GL_RGBA32F_ARB
) {
2234 printf("Convert rgba float tex to int %d x %d\n", width
, height
);
2237 else if (internalFormat
== GL_RGB16F_ARB
||
2238 internalFormat
== GL_RGB32F_ARB
) {
2239 printf("Convert rgb float tex to int %d x %d\n", width
, height
);
2242 else if (internalFormat
== GL_LUMINANCE_ALPHA16F_ARB
||
2243 internalFormat
== GL_LUMINANCE_ALPHA32F_ARB
) {
2244 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2245 return GL_LUMINANCE_ALPHA
;
2247 else if (internalFormat
== GL_LUMINANCE16F_ARB
||
2248 internalFormat
== GL_LUMINANCE32F_ARB
) {
2249 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2250 return GL_LUMINANCE
;
2252 else if (internalFormat
== GL_ALPHA16F_ARB
||
2253 internalFormat
== GL_ALPHA32F_ARB
) {
2254 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2258 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2259 internalFormat = GL_RGBA;
2263 return internalFormat
;
2266 return internalFormat
;
2272 * Choose the actual hardware format for a texture image.
2273 * Try to use the same format as the previous image level when possible.
2274 * Otherwise, ask the driver for the best format.
2275 * It's important to try to choose a consistant format for all levels
2276 * for efficient texture memory layout/allocation. In particular, this
2277 * comes up during automatic mipmap generation.
2280 _mesa_choose_texture_format(struct gl_context
*ctx
,
2281 struct gl_texture_object
*texObj
,
2282 GLenum target
, GLint level
,
2283 GLenum internalFormat
, GLenum format
, GLenum type
)
2287 /* see if we've already chosen a format for the previous level */
2289 struct gl_texture_image
*prevImage
=
2290 _mesa_select_tex_image(ctx
, texObj
, target
, level
- 1);
2291 /* See if the prev level is defined and has an internal format which
2292 * matches the new internal format.
2295 prevImage
->Width
> 0 &&
2296 prevImage
->InternalFormat
== internalFormat
) {
2297 /* use the same format */
2298 ASSERT(prevImage
->TexFormat
!= MESA_FORMAT_NONE
);
2299 return prevImage
->TexFormat
;
2303 /* choose format from scratch */
2304 f
= ctx
->Driver
.ChooseTextureFormat(ctx
, internalFormat
, format
, type
);
2305 ASSERT(f
!= MESA_FORMAT_NONE
);
2311 * Common code to implement all the glTexImage1D/2D/3D functions.
2314 teximage(struct gl_context
*ctx
, GLuint dims
,
2315 GLenum target
, GLint level
, GLint internalFormat
,
2316 GLsizei width
, GLsizei height
, GLsizei depth
,
2317 GLint border
, GLenum format
, GLenum type
,
2318 const GLvoid
*pixels
)
2322 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2324 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2325 _mesa_debug(ctx
, "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2327 _mesa_lookup_enum_by_nr(target
), level
,
2328 _mesa_lookup_enum_by_nr(internalFormat
),
2329 width
, height
, depth
, border
,
2330 _mesa_lookup_enum_by_nr(format
),
2331 _mesa_lookup_enum_by_nr(type
), pixels
);
2333 internalFormat
= override_internal_format(internalFormat
, width
, height
);
2335 /* target error checking */
2336 if (!legal_teximage_target(ctx
, dims
, target
)) {
2337 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexImage%uD(target=%s)",
2338 dims
, _mesa_lookup_enum_by_nr(target
));
2342 /* general error checking */
2343 error
= texture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2344 format
, type
, width
, height
, depth
, border
);
2346 if (_mesa_is_proxy_texture(target
)) {
2347 /* Proxy texture: just clear or set state depending on error checking */
2348 struct gl_texture_image
*texImage
=
2349 _mesa_get_proxy_tex_image(ctx
, target
, level
);
2352 /* when error, clear all proxy texture image parameters */
2354 clear_teximage_fields(texImage
);
2357 /* no error, set the tex image parameters */
2358 struct gl_texture_object
*texObj
=
2359 _mesa_get_current_tex_object(ctx
, target
);
2360 gl_format texFormat
= _mesa_choose_texture_format(ctx
, texObj
,
2365 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
2366 _mesa_init_teximage_fields(ctx
, target
, texImage
, width
, height
,
2367 depth
, border
, internalFormat
,
2370 else if (texImage
) {
2371 clear_teximage_fields(texImage
);
2376 /* non-proxy target */
2377 const GLuint face
= _mesa_tex_target_to_face(target
);
2378 struct gl_texture_object
*texObj
;
2379 struct gl_texture_image
*texImage
;
2382 return; /* error was recorded */
2385 if (ctx
->NewState
& _MESA_NEW_TRANSFER_STATE
)
2386 _mesa_update_state(ctx
);
2388 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2390 _mesa_lock_texture(ctx
, texObj
);
2392 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
2395 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
2398 gl_format texFormat
;
2400 if (texImage
->Data
) {
2401 ctx
->Driver
.FreeTexImageData( ctx
, texImage
);
2404 ASSERT(texImage
->Data
== NULL
);
2405 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
2406 internalFormat
, format
,
2409 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
2410 _mesa_init_teximage_fields(ctx
, target
, texImage
,
2411 width
, height
, depth
,
2412 border
, internalFormat
, texFormat
);
2414 /* Give the texture to the driver. <pixels> may be null. */
2415 ASSERT(ctx
->Driver
.TexImage3D
);
2418 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
2419 width
, border
, format
,
2420 type
, pixels
, &ctx
->Unpack
, texObj
,
2424 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
2425 width
, height
, border
, format
,
2426 type
, pixels
, &ctx
->Unpack
, texObj
,
2430 ctx
->Driver
.TexImage3D(ctx
, target
, level
, internalFormat
,
2431 width
, height
, depth
, border
, format
,
2432 type
, pixels
, &ctx
->Unpack
, texObj
,
2436 _mesa_problem(ctx
, "invalid dims=%u in teximage()", dims
);
2439 check_gen_mipmap(ctx
, target
, texObj
, level
);
2441 update_fbo_texture(ctx
, texObj
, face
, level
);
2444 texObj
->_Complete
= GL_FALSE
;
2445 ctx
->NewState
|= _NEW_TEXTURE
;
2448 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
2452 _mesa_unlock_texture(ctx
, texObj
);
2458 * Called from the API. Note that width includes the border.
2461 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalFormat
,
2462 GLsizei width
, GLint border
, GLenum format
,
2463 GLenum type
, const GLvoid
*pixels
)
2465 GET_CURRENT_CONTEXT(ctx
);
2466 teximage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1,
2467 border
, format
, type
, pixels
);
2472 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalFormat
,
2473 GLsizei width
, GLsizei height
, GLint border
,
2474 GLenum format
, GLenum type
,
2475 const GLvoid
*pixels
)
2477 GET_CURRENT_CONTEXT(ctx
);
2478 teximage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1,
2479 border
, format
, type
, pixels
);
2484 * Called by the API or display list executor.
2485 * Note that width and height include the border.
2488 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalFormat
,
2489 GLsizei width
, GLsizei height
, GLsizei depth
,
2490 GLint border
, GLenum format
, GLenum type
,
2491 const GLvoid
*pixels
)
2493 GET_CURRENT_CONTEXT(ctx
);
2494 teximage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
2495 border
, format
, type
, pixels
);
2500 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalFormat
,
2501 GLsizei width
, GLsizei height
, GLsizei depth
,
2502 GLint border
, GLenum format
, GLenum type
,
2503 const GLvoid
*pixels
)
2505 _mesa_TexImage3D(target
, level
, (GLint
) internalFormat
, width
, height
,
2506 depth
, border
, format
, type
, pixels
);
2510 #if FEATURE_OES_EGL_image
2512 _mesa_EGLImageTargetTexture2DOES (GLenum target
, GLeglImageOES image
)
2514 struct gl_texture_object
*texObj
;
2515 struct gl_texture_image
*texImage
;
2516 GET_CURRENT_CONTEXT(ctx
);
2517 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2519 if (!ctx
->Extensions
.OES_EGL_image
) {
2520 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2521 "glEGLImageTargetTexture2DOES(unsupported)");
2525 if (target
!= GL_TEXTURE_2D
) {
2526 _mesa_error(ctx
, GL_INVALID_ENUM
,
2527 "glEGLImageTargetTexture2D(target=%d)", target
);
2531 if (ctx
->NewState
& _MESA_NEW_TRANSFER_STATE
)
2532 _mesa_update_state(ctx
);
2534 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2535 _mesa_lock_texture(ctx
, texObj
);
2537 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
2539 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glEGLImageTargetTexture2D");
2542 ctx
->Driver
.FreeTexImageData( ctx
, texImage
);
2544 ASSERT(texImage
->Data
== NULL
);
2545 ctx
->Driver
.EGLImageTargetTexture2D(ctx
, target
,
2546 texObj
, texImage
, image
);
2549 texObj
->_Complete
= GL_FALSE
;
2550 ctx
->NewState
|= _NEW_TEXTURE
;
2552 _mesa_unlock_texture(ctx
, texObj
);
2560 * Implement all the glTexSubImage1/2/3D() functions.
2563 texsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
2564 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2565 GLsizei width
, GLsizei height
, GLsizei depth
,
2566 GLenum format
, GLenum type
, const GLvoid
*pixels
)
2568 struct gl_texture_object
*texObj
;
2569 struct gl_texture_image
*texImage
;
2571 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2573 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2574 _mesa_debug(ctx
, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
2576 _mesa_lookup_enum_by_nr(target
), level
,
2577 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
2578 _mesa_lookup_enum_by_nr(format
),
2579 _mesa_lookup_enum_by_nr(type
), pixels
);
2581 /* check target (proxies not allowed) */
2582 if (!legal_teximage_target(ctx
, dims
, target
) ||
2583 _mesa_is_proxy_texture(target
)) {
2584 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
2585 dims
, _mesa_lookup_enum_by_nr(target
));
2589 if (ctx
->NewState
& _MESA_NEW_TRANSFER_STATE
)
2590 _mesa_update_state(ctx
);
2592 if (subtexture_error_check(ctx
, dims
, target
, level
, xoffset
, yoffset
, zoffset
,
2593 width
, height
, depth
, format
, type
)) {
2594 return; /* error was detected */
2597 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2599 _mesa_lock_texture(ctx
, texObj
);
2601 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2603 if (subtexture_error_check2(ctx
, dims
, target
, level
,
2604 xoffset
, yoffset
, zoffset
,
2605 width
, height
, depth
,
2606 format
, type
, texImage
)) {
2607 /* error was recorded */
2609 else if (width
> 0 && height
> 0 && height
> 0) {
2610 /* If we have a border, offset=-1 is legal. Bias by border width. */
2613 zoffset
+= texImage
->Border
;
2616 yoffset
+= texImage
->Border
;
2619 xoffset
+= texImage
->Border
;
2624 ctx
->Driver
.TexSubImage1D(ctx
, target
, level
,
2626 format
, type
, pixels
,
2627 &ctx
->Unpack
, texObj
, texImage
);
2630 ctx
->Driver
.TexSubImage2D(ctx
, target
, level
,
2631 xoffset
, yoffset
, width
, height
,
2632 format
, type
, pixels
,
2633 &ctx
->Unpack
, texObj
, texImage
);
2636 ctx
->Driver
.TexSubImage3D(ctx
, target
, level
,
2637 xoffset
, yoffset
, zoffset
,
2638 width
, height
, depth
,
2639 format
, type
, pixels
,
2640 &ctx
->Unpack
, texObj
, texImage
);
2643 _mesa_problem(ctx
, "unexpected dims in subteximage()");
2646 check_gen_mipmap(ctx
, target
, texObj
, level
);
2648 ctx
->NewState
|= _NEW_TEXTURE
;
2651 _mesa_unlock_texture(ctx
, texObj
);
2656 _mesa_TexSubImage1D( GLenum target
, GLint level
,
2657 GLint xoffset
, GLsizei width
,
2658 GLenum format
, GLenum type
,
2659 const GLvoid
*pixels
)
2661 GET_CURRENT_CONTEXT(ctx
);
2662 texsubimage(ctx
, 1, target
, level
,
2665 format
, type
, pixels
);
2670 _mesa_TexSubImage2D( GLenum target
, GLint level
,
2671 GLint xoffset
, GLint yoffset
,
2672 GLsizei width
, GLsizei height
,
2673 GLenum format
, GLenum type
,
2674 const GLvoid
*pixels
)
2676 GET_CURRENT_CONTEXT(ctx
);
2677 texsubimage(ctx
, 2, target
, level
,
2678 xoffset
, yoffset
, 0,
2680 format
, type
, pixels
);
2686 _mesa_TexSubImage3D( GLenum target
, GLint level
,
2687 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2688 GLsizei width
, GLsizei height
, GLsizei depth
,
2689 GLenum format
, GLenum type
,
2690 const GLvoid
*pixels
)
2692 GET_CURRENT_CONTEXT(ctx
);
2693 texsubimage(ctx
, 3, target
, level
,
2694 xoffset
, yoffset
, zoffset
,
2695 width
, height
, depth
,
2696 format
, type
, pixels
);
2702 * Implement the glCopyTexImage1/2D() functions.
2705 copyteximage(struct gl_context
*ctx
, GLuint dims
,
2706 GLenum target
, GLint level
, GLenum internalFormat
,
2707 GLint x
, GLint y
, GLsizei width
, GLsizei height
, GLint border
)
2709 struct gl_texture_object
*texObj
;
2710 struct gl_texture_image
*texImage
;
2711 const GLuint face
= _mesa_tex_target_to_face(target
);
2713 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2715 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2716 _mesa_debug(ctx
, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
2718 _mesa_lookup_enum_by_nr(target
), level
,
2719 _mesa_lookup_enum_by_nr(internalFormat
),
2720 x
, y
, width
, height
, border
);
2722 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
2723 _mesa_update_state(ctx
);
2725 if (copytexture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2726 width
, height
, border
))
2729 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2731 _mesa_lock_texture(ctx
, texObj
);
2733 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
2736 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
2739 gl_format texFormat
;
2741 if (texImage
->Data
) {
2742 ctx
->Driver
.FreeTexImageData( ctx
, texImage
);
2745 ASSERT(texImage
->Data
== NULL
);
2747 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
2748 internalFormat
, GL_NONE
,
2751 if (legal_texture_size(ctx
, texFormat
, width
, height
, 1)) {
2752 _mesa_init_teximage_fields(ctx
, target
, texImage
, width
, height
, 1,
2753 border
, internalFormat
, texFormat
);
2755 ASSERT(ctx
->Driver
.CopyTexImage2D
);
2757 ctx
->Driver
.CopyTexImage1D(ctx
, target
, level
, internalFormat
,
2758 x
, y
, width
, border
);
2760 ctx
->Driver
.CopyTexImage2D(ctx
, target
, level
, internalFormat
,
2761 x
, y
, width
, height
, border
);
2763 check_gen_mipmap(ctx
, target
, texObj
, level
);
2765 update_fbo_texture(ctx
, texObj
, face
, level
);
2768 texObj
->_Complete
= GL_FALSE
;
2769 ctx
->NewState
|= _NEW_TEXTURE
;
2772 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
2776 _mesa_unlock_texture(ctx
, texObj
);
2782 _mesa_CopyTexImage1D( GLenum target
, GLint level
,
2783 GLenum internalFormat
,
2785 GLsizei width
, GLint border
)
2787 GET_CURRENT_CONTEXT(ctx
);
2788 copyteximage(ctx
, 1, target
, level
, internalFormat
, x
, y
, width
, 1, border
);
2794 _mesa_CopyTexImage2D( GLenum target
, GLint level
, GLenum internalFormat
,
2795 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
2798 GET_CURRENT_CONTEXT(ctx
);
2799 copyteximage(ctx
, 2, target
, level
, internalFormat
,
2800 x
, y
, width
, height
, border
);
2806 * Implementation for glCopyTexSubImage1/2/3D() functions.
2809 copytexsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
2810 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2811 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
2813 struct gl_texture_object
*texObj
;
2814 struct gl_texture_image
*texImage
;
2816 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2818 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2819 _mesa_debug(ctx
, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
2821 _mesa_lookup_enum_by_nr(target
),
2822 level
, xoffset
, yoffset
, zoffset
, x
, y
, width
, height
);
2824 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
2825 _mesa_update_state(ctx
);
2827 if (copytexsubimage_error_check1(ctx
, dims
, target
, level
))
2830 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2832 _mesa_lock_texture(ctx
, texObj
);
2834 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2836 if (copytexsubimage_error_check2(ctx
, dims
, target
, level
, xoffset
, yoffset
,
2837 zoffset
, width
, height
, texImage
)) {
2838 /* error was recored */
2841 /* If we have a border, offset=-1 is legal. Bias by border width. */
2844 zoffset
+= texImage
->Border
;
2847 yoffset
+= texImage
->Border
;
2850 xoffset
+= texImage
->Border
;
2853 if (_mesa_clip_copytexsubimage(ctx
, &xoffset
, &yoffset
, &x
, &y
,
2857 ctx
->Driver
.CopyTexSubImage1D(ctx
, target
, level
,
2858 xoffset
, x
, y
, width
);
2861 ctx
->Driver
.CopyTexSubImage2D(ctx
, target
, level
,
2863 x
, y
, width
, height
);
2866 ctx
->Driver
.CopyTexSubImage3D(ctx
, target
, level
,
2867 xoffset
, yoffset
, zoffset
,
2868 x
, y
, width
, height
);
2871 _mesa_problem(ctx
, "bad dims in copytexsubimage()");
2874 check_gen_mipmap(ctx
, target
, texObj
, level
);
2876 ctx
->NewState
|= _NEW_TEXTURE
;
2880 _mesa_unlock_texture(ctx
, texObj
);
2885 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
,
2886 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
2888 GET_CURRENT_CONTEXT(ctx
);
2889 copytexsubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, x
, y
, width
, 1);
2895 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
2896 GLint xoffset
, GLint yoffset
,
2897 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
2899 GET_CURRENT_CONTEXT(ctx
);
2900 copytexsubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0, x
, y
,
2907 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
2908 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2909 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
2911 GET_CURRENT_CONTEXT(ctx
);
2912 copytexsubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
2913 x
, y
, width
, height
);
2919 /**********************************************************************/
2920 /****** Compressed Textures ******/
2921 /**********************************************************************/
2925 * Return expected size of a compressed texture.
2928 compressed_tex_size(GLsizei width
, GLsizei height
, GLsizei depth
,
2931 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
2932 return _mesa_format_image_size(mesaFormat
, width
, height
, depth
);
2937 * Return compressed texture block size, in pixels.
2940 get_compressed_block_size(GLenum glformat
, GLuint
*bw
, GLuint
*bh
)
2942 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
2943 _mesa_get_format_block_size(mesaFormat
, bw
, bh
);
2948 * Error checking for glCompressedTexImage[123]D().
2949 * \return error code or GL_NO_ERROR.
2952 compressed_texture_error_check(struct gl_context
*ctx
, GLint dimensions
,
2953 GLenum target
, GLint level
,
2954 GLenum internalFormat
, GLsizei width
,
2955 GLsizei height
, GLsizei depth
, GLint border
,
2958 const GLenum proxyTarget
= get_proxy_target(target
);
2959 const GLint maxLevels
= _mesa_max_texture_levels(ctx
, target
);
2963 if (level
< 0 || level
>= maxLevels
)
2964 return GL_INVALID_VALUE
;
2966 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2967 return GL_INVALID_ENUM
;
2970 /* This will detect any invalid internalFormat value */
2971 if (!_mesa_is_compressed_format(ctx
, internalFormat
))
2972 return GL_INVALID_ENUM
;
2974 /* This should really never fail */
2975 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0)
2976 return GL_INVALID_ENUM
;
2978 /* No compressed formats support borders at this time */
2980 return GL_INVALID_VALUE
;
2982 /* For cube map, width must equal height */
2983 if (target
>= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
&&
2984 target
<= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
&& width
!= height
)
2985 return GL_INVALID_VALUE
;
2987 /* check image size against compression block size */
2989 gl_format texFormat
=
2990 ctx
->Driver
.ChooseTextureFormat(ctx
, internalFormat
,
2994 _mesa_get_format_block_size(texFormat
, &bw
, &bh
);
2995 if ((width
> bw
&& width
% bw
> 0) ||
2996 (height
> bh
&& height
% bh
> 0)) {
2998 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is
2999 * generated [...] if any parameter combinations are not
3000 * supported by the specific compressed internal format.
3002 return GL_INVALID_OPERATION
;
3006 /* check image sizes */
3007 if (!ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
3008 internalFormat
, GL_NONE
, GL_NONE
,
3009 width
, height
, depth
, border
)) {
3010 /* See error comment above */
3011 return GL_INVALID_OPERATION
;
3014 /* check image size in bytes */
3015 expectedSize
= compressed_tex_size(width
, height
, depth
, internalFormat
);
3016 if (expectedSize
!= imageSize
) {
3017 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
3018 * if <imageSize> is not consistent with the format, dimensions, and
3019 * contents of the specified image.
3021 return GL_INVALID_VALUE
;
3029 * Error checking for glCompressedTexSubImage[123]D().
3030 * \warning There are some bad assumptions here about the size of compressed
3031 * texture tiles (multiple of 4) used to test the validity of the
3032 * offset and size parameters.
3033 * \return error code or GL_NO_ERROR.
3036 compressed_subtexture_error_check(struct gl_context
*ctx
, GLint dimensions
,
3037 GLenum target
, GLint level
,
3038 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3039 GLsizei width
, GLsizei height
, GLsizei depth
,
3040 GLenum format
, GLsizei imageSize
)
3042 GLint expectedSize
, maxLevels
= 0, maxTextureSize
;
3046 if (dimensions
== 1) {
3047 /* 1D compressed textures not allowed */
3048 return GL_INVALID_ENUM
;
3050 else if (dimensions
== 2) {
3051 if (target
== GL_PROXY_TEXTURE_2D
) {
3052 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3054 else if (target
== GL_TEXTURE_2D
) {
3055 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3057 else if (target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
) {
3058 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3059 return GL_INVALID_ENUM
; /*target*/
3060 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3062 else if (target
>= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
&&
3063 target
<= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
) {
3064 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3065 return GL_INVALID_ENUM
; /*target*/
3066 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3069 return GL_INVALID_ENUM
; /*target*/
3072 else if (dimensions
== 3) {
3073 /* 3D compressed textures not allowed */
3074 return GL_INVALID_ENUM
;
3077 maxTextureSize
= 1 << (maxLevels
- 1);
3079 /* this will catch any invalid compressed format token */
3080 if (!_mesa_is_compressed_format(ctx
, format
))
3081 return GL_INVALID_ENUM
;
3083 if (width
< 1 || width
> maxTextureSize
)
3084 return GL_INVALID_VALUE
;
3086 if ((height
< 1 || height
> maxTextureSize
)
3088 return GL_INVALID_VALUE
;
3090 if (level
< 0 || level
>= maxLevels
)
3091 return GL_INVALID_VALUE
;
3094 * do checks which depend on compression block size
3096 get_compressed_block_size(format
, &bw
, &bh
);
3098 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0))
3099 return GL_INVALID_VALUE
;
3101 if ((width
% bw
!= 0) && width
!= 2 && width
!= 1)
3102 return GL_INVALID_VALUE
;
3104 if ((height
% bh
!= 0) && height
!= 2 && height
!= 1)
3105 return GL_INVALID_VALUE
;
3107 expectedSize
= compressed_tex_size(width
, height
, depth
, format
);
3108 if (expectedSize
!= imageSize
)
3109 return GL_INVALID_VALUE
;
3116 * Do second part of glCompressedTexSubImage error checking.
3117 * \return GL_TRUE if error found, GL_FALSE otherwise.
3120 compressed_subtexture_error_check2(struct gl_context
*ctx
, GLuint dims
,
3121 GLsizei width
, GLsizei height
,
3122 GLsizei depth
, GLenum format
,
3123 struct gl_texture_image
*texImage
)
3126 if ((GLint
) format
!= texImage
->InternalFormat
) {
3127 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3128 "glCompressedTexSubImage%uD(format=0x%x)", dims
, format
);
3132 if (((width
== 1 || width
== 2) &&
3133 width
!= (GLsizei
) texImage
->Width
) ||
3134 (width
> (GLsizei
) texImage
->Width
)) {
3135 _mesa_error(ctx
, GL_INVALID_VALUE
,
3136 "glCompressedTexSubImage%uD(width=%d)", dims
, width
);
3141 if (((height
== 1 || height
== 2) &&
3142 height
!= (GLsizei
) texImage
->Height
) ||
3143 (height
> (GLsizei
) texImage
->Height
)) {
3144 _mesa_error(ctx
, GL_INVALID_VALUE
,
3145 "glCompressedTexSubImage%uD(height=%d)", dims
, height
);
3151 if (((depth
== 1 || depth
== 2) &&
3152 depth
!= (GLsizei
) texImage
->Depth
) ||
3153 (depth
> (GLsizei
) texImage
->Depth
)) {
3154 _mesa_error(ctx
, GL_INVALID_VALUE
,
3155 "glCompressedTexSubImage%uD(depth=%d)", dims
, depth
);
3165 * Implementation of the glCompressedTexImage1/2/3D() functions.
3168 compressedteximage(struct gl_context
*ctx
, GLuint dims
,
3169 GLenum target
, GLint level
,
3170 GLenum internalFormat
, GLsizei width
,
3171 GLsizei height
, GLsizei depth
, GLint border
,
3172 GLsizei imageSize
, const GLvoid
*data
)
3176 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3178 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3180 "glCompressedTexImage%uDARB %s %d %s %d %d %d %d %d %p\n",
3182 _mesa_lookup_enum_by_nr(target
), level
,
3183 _mesa_lookup_enum_by_nr(internalFormat
),
3184 width
, height
, depth
, border
, imageSize
, data
);
3187 if (!legal_teximage_target(ctx
, dims
, target
)) {
3188 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCompressedTexImage%uD(target=%s)",
3189 dims
, _mesa_lookup_enum_by_nr(target
));
3193 error
= compressed_texture_error_check(ctx
, dims
, target
, level
,
3194 internalFormat
, width
, height
, depth
,
3198 /* XXX this is kind of a hack */
3200 _mesa_error(ctx
, error
, "glTexImage2D");
3205 switch (internalFormat
) {
3206 case GL_PALETTE4_RGB8_OES
:
3207 case GL_PALETTE4_RGBA8_OES
:
3208 case GL_PALETTE4_R5_G6_B5_OES
:
3209 case GL_PALETTE4_RGBA4_OES
:
3210 case GL_PALETTE4_RGB5_A1_OES
:
3211 case GL_PALETTE8_RGB8_OES
:
3212 case GL_PALETTE8_RGBA8_OES
:
3213 case GL_PALETTE8_R5_G6_B5_OES
:
3214 case GL_PALETTE8_RGBA4_OES
:
3215 case GL_PALETTE8_RGB5_A1_OES
:
3216 _mesa_cpal_compressed_teximage2d(target
, level
, internalFormat
,
3217 width
, height
, imageSize
, data
);
3223 if (_mesa_is_proxy_texture(target
)) {
3224 /* Proxy texture: just check for errors and update proxy state */
3225 struct gl_texture_image
*texImage
;
3228 struct gl_texture_object
*texObj
=
3229 _mesa_get_current_tex_object(ctx
, target
);
3230 gl_format texFormat
=
3231 _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3232 internalFormat
, GL_NONE
, GL_NONE
);
3233 if (!legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
3234 error
= GL_OUT_OF_MEMORY
;
3238 texImage
= _mesa_get_proxy_tex_image(ctx
, target
, level
);
3241 /* if error, clear all proxy texture image parameters */
3242 clear_teximage_fields(texImage
);
3245 /* no error: store the teximage parameters */
3246 _mesa_init_teximage_fields(ctx
, target
, texImage
, width
, height
,
3247 depth
, border
, internalFormat
,
3253 /* non-proxy target */
3254 struct gl_texture_object
*texObj
;
3255 struct gl_texture_image
*texImage
;
3258 _mesa_error(ctx
, error
, "glCompressedTexImage%uD", dims
);
3262 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3264 _mesa_lock_texture(ctx
, texObj
);
3266 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3268 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3269 "glCompressedTexImage%uD", dims
);
3272 gl_format texFormat
;
3274 if (texImage
->Data
) {
3275 ctx
->Driver
.FreeTexImageData( ctx
, texImage
);
3277 ASSERT(texImage
->Data
== NULL
);
3279 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3280 internalFormat
, GL_NONE
,
3283 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
3284 _mesa_init_teximage_fields(ctx
, target
, texImage
,
3285 width
, height
, depth
,
3286 border
, internalFormat
, texFormat
);
3290 ASSERT(ctx
->Driver
.CompressedTexImage1D
);
3291 ctx
->Driver
.CompressedTexImage1D(ctx
, target
, level
,
3294 border
, imageSize
, data
,
3298 ASSERT(ctx
->Driver
.CompressedTexImage2D
);
3299 ctx
->Driver
.CompressedTexImage2D(ctx
, target
, level
,
3302 border
, imageSize
, data
,
3306 ASSERT(ctx
->Driver
.CompressedTexImage3D
);
3307 ctx
->Driver
.CompressedTexImage3D(ctx
, target
, level
,
3309 width
, height
, depth
,
3310 border
, imageSize
, data
,
3314 _mesa_problem(ctx
, "bad dims in compressedteximage");
3317 check_gen_mipmap(ctx
, target
, texObj
, level
);
3320 texObj
->_Complete
= GL_FALSE
;
3321 ctx
->NewState
|= _NEW_TEXTURE
;
3324 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3325 "glCompressedTexImage%uD", dims
);
3329 _mesa_unlock_texture(ctx
, texObj
);
3335 _mesa_CompressedTexImage1DARB(GLenum target
, GLint level
,
3336 GLenum internalFormat
, GLsizei width
,
3337 GLint border
, GLsizei imageSize
,
3340 GET_CURRENT_CONTEXT(ctx
);
3341 compressedteximage(ctx
, 1, target
, level
, internalFormat
,
3342 width
, 1, 1, border
, imageSize
, data
);
3347 _mesa_CompressedTexImage2DARB(GLenum target
, GLint level
,
3348 GLenum internalFormat
, GLsizei width
,
3349 GLsizei height
, GLint border
, GLsizei imageSize
,
3352 GET_CURRENT_CONTEXT(ctx
);
3353 compressedteximage(ctx
, 2, target
, level
, internalFormat
,
3354 width
, height
, 1, border
, imageSize
, data
);
3359 _mesa_CompressedTexImage3DARB(GLenum target
, GLint level
,
3360 GLenum internalFormat
, GLsizei width
,
3361 GLsizei height
, GLsizei depth
, GLint border
,
3362 GLsizei imageSize
, const GLvoid
*data
)
3364 GET_CURRENT_CONTEXT(ctx
);
3365 compressedteximage(ctx
, 3, target
, level
, internalFormat
,
3366 width
, height
, depth
, border
, imageSize
, data
);
3371 * Common helper for glCompressedTexSubImage1/2/3D().
3374 compressed_tex_sub_image(GLuint dims
, GLenum target
, GLint level
,
3375 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3376 GLsizei width
, GLsizei height
, GLsizei depth
,
3377 GLenum format
, GLsizei imageSize
, const GLvoid
*data
)
3379 struct gl_texture_object
*texObj
;
3380 struct gl_texture_image
*texImage
;
3382 GET_CURRENT_CONTEXT(ctx
);
3383 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3385 error
= compressed_subtexture_error_check(ctx
, dims
, target
, level
,
3386 xoffset
, 0, 0, /* pos */
3387 width
, height
, depth
, /* size */
3390 _mesa_error(ctx
, error
, "glCompressedTexSubImage%uD", dims
);
3394 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3396 _mesa_lock_texture(ctx
, texObj
);
3398 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3401 if (compressed_subtexture_error_check2(ctx
, dims
, width
, height
, depth
,
3402 format
, texImage
)) {
3403 /* error was recorded */
3405 else if (width
> 0 && height
> 0 && depth
> 0) {
3408 if (ctx
->Driver
.CompressedTexSubImage1D
) {
3409 ctx
->Driver
.CompressedTexSubImage1D(ctx
, target
, level
,
3411 format
, imageSize
, data
,
3416 if (ctx
->Driver
.CompressedTexSubImage2D
) {
3417 ctx
->Driver
.CompressedTexSubImage2D(ctx
, target
, level
,
3420 format
, imageSize
, data
,
3425 if (ctx
->Driver
.CompressedTexSubImage3D
) {
3426 ctx
->Driver
.CompressedTexSubImage3D(ctx
, target
, level
,
3427 xoffset
, yoffset
, zoffset
,
3428 width
, height
, depth
,
3429 format
, imageSize
, data
,
3437 check_gen_mipmap(ctx
, target
, texObj
, level
);
3439 ctx
->NewState
|= _NEW_TEXTURE
;
3442 _mesa_unlock_texture(ctx
, texObj
);
3447 _mesa_CompressedTexSubImage1DARB(GLenum target
, GLint level
, GLint xoffset
,
3448 GLsizei width
, GLenum format
,
3449 GLsizei imageSize
, const GLvoid
*data
)
3451 compressed_tex_sub_image(1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
3452 format
, imageSize
, data
);
3457 _mesa_CompressedTexSubImage2DARB(GLenum target
, GLint level
, GLint xoffset
,
3458 GLint yoffset
, GLsizei width
, GLsizei height
,
3459 GLenum format
, GLsizei imageSize
,
3462 compressed_tex_sub_image(2, target
, level
, xoffset
, yoffset
, 0,
3463 width
, height
, 1, format
, imageSize
, data
);
3468 _mesa_CompressedTexSubImage3DARB(GLenum target
, GLint level
, GLint xoffset
,
3469 GLint yoffset
, GLint zoffset
, GLsizei width
,
3470 GLsizei height
, GLsizei depth
, GLenum format
,
3471 GLsizei imageSize
, const GLvoid
*data
)
3473 compressed_tex_sub_image(3, target
, level
, xoffset
, yoffset
, zoffset
,
3474 width
, height
, depth
, format
, imageSize
, data
);