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_ALPHA_EXT
:
344 return GL_LUMINANCE_ALPHA
;
345 case GL_SLUMINANCE_EXT
:
346 case GL_SLUMINANCE8_EXT
:
347 case GL_COMPRESSED_SLUMINANCE_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 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1441 * The difference compared to legal_teximage_target() above is that
1442 * proxy targets are not supported.
1445 legal_texsubimage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1449 return target
== GL_TEXTURE_1D
;
1454 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1455 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1456 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1457 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1458 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1459 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1460 return ctx
->Extensions
.ARB_texture_cube_map
;
1461 case GL_TEXTURE_RECTANGLE_NV
:
1462 return ctx
->Extensions
.NV_texture_rectangle
;
1463 case GL_TEXTURE_1D_ARRAY_EXT
:
1464 return ctx
->Extensions
.MESA_texture_array
;
1472 case GL_TEXTURE_2D_ARRAY_EXT
:
1473 return ctx
->Extensions
.MESA_texture_array
;
1478 _mesa_problem(ctx
, "invalid dims=%u in legal_texsubimage_target()",
1486 * Test the glTexImage[123]D() parameters for errors.
1488 * \param ctx GL context.
1489 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1490 * \param target texture target given by the user.
1491 * \param level image level given by the user.
1492 * \param internalFormat internal format given by the user.
1493 * \param format pixel data format given by the user.
1494 * \param type pixel data type given by the user.
1495 * \param width image width given by the user.
1496 * \param height image height given by the user.
1497 * \param depth image depth given by the user.
1498 * \param border image border given by the user.
1500 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1502 * Verifies each of the parameters against the constants specified in
1503 * __struct gl_contextRec::Const and the supported extensions, and according
1504 * to the OpenGL specification.
1507 texture_error_check( struct gl_context
*ctx
,
1508 GLuint dimensions
, GLenum target
,
1509 GLint level
, GLint internalFormat
,
1510 GLenum format
, GLenum type
,
1511 GLint width
, GLint height
,
1512 GLint depth
, GLint border
)
1514 const GLenum proxyTarget
= get_proxy_target(target
);
1515 const GLboolean isProxy
= target
== proxyTarget
;
1516 GLboolean sizeOK
= GL_TRUE
;
1517 GLboolean colorFormat
, indexFormat
;
1519 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1520 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1522 _mesa_error(ctx
, GL_INVALID_VALUE
,
1523 "glTexImage%dD(level=%d)", dimensions
, level
);
1529 if (border
< 0 || border
> 1 ||
1530 ((target
== GL_TEXTURE_RECTANGLE_NV
||
1531 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1533 _mesa_error(ctx
, GL_INVALID_VALUE
,
1534 "glTexImage%dD(border=%d)", dimensions
, border
);
1539 if (width
< 0 || height
< 0 || depth
< 0) {
1541 _mesa_error(ctx
, GL_INVALID_VALUE
,
1542 "glTexImage%dD(width, height or depth < 0)", dimensions
);
1547 /* Do this simple check before calling the TestProxyTexImage() function */
1548 if (proxyTarget
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
) {
1549 sizeOK
= (width
== height
);
1553 * Use the proxy texture driver hook to see if the size/level/etc are
1556 sizeOK
= sizeOK
&& ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
1557 internalFormat
, format
,
1558 type
, width
, height
,
1562 _mesa_error(ctx
, GL_INVALID_VALUE
,
1563 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1564 dimensions
, level
, width
, height
, depth
);
1569 /* Check internalFormat */
1570 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1572 _mesa_error(ctx
, GL_INVALID_VALUE
,
1573 "glTexImage%dD(internalFormat=%s)",
1574 dimensions
, _mesa_lookup_enum_by_nr(internalFormat
));
1579 /* Check incoming image format and type */
1580 if (!_mesa_is_legal_format_and_type(ctx
, format
, type
)) {
1581 /* Normally, GL_INVALID_OPERATION is generated by a format/type
1582 * mismatch (see the 1.2 spec page 94, sec 3.6.4.). But with the
1583 * GL_EXT_texture_integer extension, some combinations should generate
1584 * GL_INVALID_ENUM instead (grr!).
1587 GLenum error
= _mesa_is_integer_format(format
)
1588 ? GL_INVALID_ENUM
: GL_INVALID_OPERATION
;
1589 _mesa_error(ctx
, error
,
1590 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1591 dimensions
, format
, type
);
1596 /* make sure internal format and format basically agree */
1597 colorFormat
= _mesa_is_color_format(format
);
1598 indexFormat
= _mesa_is_index_format(format
);
1599 if ((_mesa_is_color_format(internalFormat
) && !colorFormat
&& !indexFormat
) ||
1600 (_mesa_is_index_format(internalFormat
) && !indexFormat
) ||
1601 (_mesa_is_depth_format(internalFormat
) != _mesa_is_depth_format(format
)) ||
1602 (_mesa_is_ycbcr_format(internalFormat
) != _mesa_is_ycbcr_format(format
)) ||
1603 (_mesa_is_depthstencil_format(internalFormat
) != _mesa_is_depthstencil_format(format
)) ||
1604 (_mesa_is_dudv_format(internalFormat
) != _mesa_is_dudv_format(format
))) {
1606 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1607 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1608 dimensions
, internalFormat
, format
);
1612 /* additional checks for ycbcr textures */
1613 if (internalFormat
== GL_YCBCR_MESA
) {
1614 ASSERT(ctx
->Extensions
.MESA_ycbcr_texture
);
1615 if (type
!= GL_UNSIGNED_SHORT_8_8_MESA
&&
1616 type
!= GL_UNSIGNED_SHORT_8_8_REV_MESA
) {
1618 _mesa_snprintf(message
, sizeof(message
),
1619 "glTexImage%dD(format/type YCBCR mismatch", dimensions
);
1620 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", message
);
1621 return GL_TRUE
; /* error */
1623 if (target
!= GL_TEXTURE_2D
&&
1624 target
!= GL_PROXY_TEXTURE_2D
&&
1625 target
!= GL_TEXTURE_RECTANGLE_NV
&&
1626 target
!= GL_PROXY_TEXTURE_RECTANGLE_NV
) {
1628 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexImage(target)");
1634 _mesa_snprintf(message
, sizeof(message
),
1635 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1636 dimensions
, border
);
1637 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", message
);
1643 /* additional checks for depth textures */
1644 if (_mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_COMPONENT
) {
1645 /* Only 1D, 2D and rectangular textures supported, not 3D or cubes */
1646 if (target
!= GL_TEXTURE_1D
&&
1647 target
!= GL_PROXY_TEXTURE_1D
&&
1648 target
!= GL_TEXTURE_2D
&&
1649 target
!= GL_PROXY_TEXTURE_2D
&&
1650 target
!= GL_TEXTURE_RECTANGLE_ARB
&&
1651 target
!= GL_PROXY_TEXTURE_RECTANGLE_ARB
) {
1653 _mesa_error(ctx
, GL_INVALID_ENUM
,
1654 "glTexImage(target/internalFormat)");
1659 /* additional checks for compressed textures */
1660 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
1661 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1663 _mesa_error(ctx
, GL_INVALID_ENUM
,
1664 "glTexImage%dD(target)", dimensions
);
1669 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1670 "glTexImage%dD(border!=0)", dimensions
);
1676 /* additional checks for integer textures */
1677 if (ctx
->Extensions
.EXT_texture_integer
&&
1678 (_mesa_is_integer_format(format
) !=
1679 _mesa_is_integer_format(internalFormat
))) {
1681 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1682 "glTexImage%dD(integer/non-integer format mismatch)",
1688 /* if we get here, the parameters are OK */
1694 * Test glTexSubImage[123]D() parameters for errors.
1696 * \param ctx GL context.
1697 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1698 * \param target texture target given by the user.
1699 * \param level image level given by the user.
1700 * \param xoffset sub-image x offset given by the user.
1701 * \param yoffset sub-image y offset given by the user.
1702 * \param zoffset sub-image z offset given by the user.
1703 * \param format pixel data format given by the user.
1704 * \param type pixel data type given by the user.
1705 * \param width image width given by the user.
1706 * \param height image height given by the user.
1707 * \param depth image depth given by the user.
1709 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1711 * Verifies each of the parameters against the constants specified in
1712 * __struct gl_contextRec::Const and the supported extensions, and according
1713 * to the OpenGL specification.
1716 subtexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
1717 GLenum target
, GLint level
,
1718 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1719 GLint width
, GLint height
, GLint depth
,
1720 GLenum format
, GLenum type
)
1722 /* Basic level check */
1723 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1724 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage2D(level=%d)", level
);
1728 /* Check for negative sizes */
1730 _mesa_error(ctx
, GL_INVALID_VALUE
,
1731 "glTexSubImage%dD(width=%d)", dimensions
, width
);
1734 if (height
< 0 && dimensions
> 1) {
1735 _mesa_error(ctx
, GL_INVALID_VALUE
,
1736 "glTexSubImage%dD(height=%d)", dimensions
, height
);
1739 if (depth
< 0 && dimensions
> 2) {
1740 _mesa_error(ctx
, GL_INVALID_VALUE
,
1741 "glTexSubImage%dD(depth=%d)", dimensions
, depth
);
1745 if (!_mesa_is_legal_format_and_type(ctx
, format
, type
)) {
1746 /* As with the glTexImage2D check above, the error code here
1747 * depends on texture integer.
1749 GLenum error
= _mesa_is_integer_format(format
)
1750 ? GL_INVALID_OPERATION
: GL_INVALID_ENUM
;
1751 _mesa_error(ctx
, error
,
1752 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
1753 dimensions
, format
, type
);
1762 * Do second part of glTexSubImage which depends on the destination texture.
1763 * \return GL_TRUE if error recorded, GL_FALSE otherwise
1766 subtexture_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
1767 GLenum target
, GLint level
,
1768 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1769 GLint width
, GLint height
, GLint depth
,
1770 GLenum format
, GLenum type
,
1771 const struct gl_texture_image
*destTex
)
1774 /* undefined image level */
1775 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexSubImage%dD", dimensions
);
1779 if (xoffset
< -((GLint
)destTex
->Border
)) {
1780 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset)",
1784 if (xoffset
+ width
> (GLint
) (destTex
->Width
+ destTex
->Border
)) {
1785 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset+width)",
1789 if (dimensions
> 1) {
1790 if (yoffset
< -((GLint
)destTex
->Border
)) {
1791 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset)",
1795 if (yoffset
+ height
> (GLint
) (destTex
->Height
+ destTex
->Border
)) {
1796 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset+height)",
1801 if (dimensions
> 2) {
1802 if (zoffset
< -((GLint
)destTex
->Border
)) {
1803 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset)");
1806 if (zoffset
+ depth
> (GLint
) (destTex
->Depth
+ destTex
->Border
)) {
1807 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset+depth)");
1812 if (_mesa_is_format_compressed(destTex
->TexFormat
)) {
1815 /* do tests which depend on compression block size */
1816 _mesa_get_format_block_size(destTex
->TexFormat
, &bw
, &bh
);
1818 /* offset must be multiple of block size */
1819 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0)) {
1820 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1821 "glTexSubImage%dD(xoffset = %d, yoffset = %d)",
1822 dimensions
, xoffset
, yoffset
);
1825 /* size must be multiple of bw by bh or equal to whole texture size */
1826 if ((width
% bw
!= 0) && (GLuint
) width
!= destTex
->Width
) {
1827 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1828 "glTexSubImage%dD(width = %d)", dimensions
, width
);
1831 if ((height
% bh
!= 0) && (GLuint
) height
!= destTex
->Height
) {
1832 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1833 "glTexSubImage%dD(height = %d)", dimensions
, height
);
1843 * Test glCopyTexImage[12]D() parameters for errors.
1845 * \param ctx GL context.
1846 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1847 * \param target texture target given by the user.
1848 * \param level image level given by the user.
1849 * \param internalFormat internal format given by the user.
1850 * \param width image width given by the user.
1851 * \param height image height given by the user.
1852 * \param border texture border.
1854 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1856 * Verifies each of the parameters against the constants specified in
1857 * __struct gl_contextRec::Const and the supported extensions, and according
1858 * to the OpenGL specification.
1861 copytexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
1862 GLenum target
, GLint level
, GLint internalFormat
,
1863 GLint width
, GLint height
, GLint border
)
1865 const GLenum proxyTarget
= get_proxy_target(target
);
1866 const GLenum type
= GL_FLOAT
;
1871 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
1872 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexImage%uD(target=%s)",
1873 dimensions
, _mesa_lookup_enum_by_nr(target
));
1877 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1878 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1879 _mesa_error(ctx
, GL_INVALID_VALUE
,
1880 "glCopyTexImage%dD(level=%d)", dimensions
, level
);
1884 /* Check that the source buffer is complete */
1885 if (ctx
->ReadBuffer
->Name
) {
1886 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
1887 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1888 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
1889 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
1895 if (border
< 0 || border
> 1 ||
1896 ((target
== GL_TEXTURE_RECTANGLE_NV
||
1897 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1901 format
= _mesa_base_tex_format(ctx
, internalFormat
);
1903 _mesa_error(ctx
, GL_INVALID_VALUE
,
1904 "glCopyTexImage%dD(internalFormat)", dimensions
);
1908 if (!_mesa_source_buffer_exists(ctx
, format
)) {
1909 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1910 "glCopyTexImage%dD(missing readbuffer)", dimensions
);
1914 /* Do size, level checking */
1915 sizeOK
= (proxyTarget
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
)
1916 ? (width
== height
) : 1;
1918 sizeOK
= sizeOK
&& ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
1919 internalFormat
, format
,
1920 type
, width
, height
,
1924 if (dimensions
== 1) {
1925 _mesa_error(ctx
, GL_INVALID_VALUE
,
1926 "glCopyTexImage1D(width=%d)", width
);
1929 ASSERT(dimensions
== 2);
1930 _mesa_error(ctx
, GL_INVALID_VALUE
,
1931 "glCopyTexImage2D(width=%d, height=%d)", width
, height
);
1936 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
1937 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1938 _mesa_error(ctx
, GL_INVALID_ENUM
,
1939 "glCopyTexImage%dD(target)", dimensions
);
1943 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1944 "glCopyTexImage%dD(border!=0)", dimensions
);
1948 else if (_mesa_is_depth_format(internalFormat
)) {
1949 /* make sure we have depth/stencil buffers */
1950 if (!ctx
->ReadBuffer
->_DepthBuffer
) {
1951 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1952 "glCopyTexImage%dD(no depth)", dimensions
);
1956 else if (_mesa_is_depthstencil_format(internalFormat
)) {
1957 /* make sure we have depth/stencil buffers */
1958 if (!ctx
->ReadBuffer
->_DepthBuffer
|| !ctx
->ReadBuffer
->_StencilBuffer
) {
1959 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1960 "glCopyTexImage%dD(no depth/stencil buffer)", dimensions
);
1965 /* if we get here, the parameters are OK */
1971 * Test glCopyTexSubImage[12]D() parameters for errors.
1972 * Note that this is the first part of error checking.
1973 * See also copytexsubimage_error_check2() below for the second part.
1975 * \param ctx GL context.
1976 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1977 * \param target texture target given by the user.
1978 * \param level image level given by the user.
1980 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1983 copytexsubimage_error_check1( struct gl_context
*ctx
, GLuint dimensions
,
1984 GLenum target
, GLint level
)
1986 /* Check that the source buffer is complete */
1987 if (ctx
->ReadBuffer
->Name
) {
1988 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
1989 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1990 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
1991 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
1996 /* check target (proxies not allowed) */
1997 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
1998 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexSubImage%uD(target=%s)",
1999 dimensions
, _mesa_lookup_enum_by_nr(target
));
2004 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
2005 _mesa_error(ctx
, GL_INVALID_VALUE
,
2006 "glCopyTexSubImage%dD(level=%d)", dimensions
, level
);
2015 * Second part of error checking for glCopyTexSubImage[12]D().
2016 * \param xoffset sub-image x offset given by the user.
2017 * \param yoffset sub-image y offset given by the user.
2018 * \param zoffset sub-image z offset given by the user.
2019 * \param width image width given by the user.
2020 * \param height image height given by the user.
2023 copytexsubimage_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
2024 GLenum target
, GLint level
,
2025 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2026 GLsizei width
, GLsizei height
,
2027 const struct gl_texture_image
*teximage
)
2029 /* check that dest tex image exists */
2031 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2032 "glCopyTexSubImage%dD(undefined texture level: %d)",
2039 _mesa_error(ctx
, GL_INVALID_VALUE
,
2040 "glCopyTexSubImage%dD(width=%d)", dimensions
, width
);
2043 if (dimensions
> 1 && height
< 0) {
2044 _mesa_error(ctx
, GL_INVALID_VALUE
,
2045 "glCopyTexSubImage%dD(height=%d)", dimensions
, height
);
2049 /* check x/y offsets */
2050 if (xoffset
< -((GLint
)teximage
->Border
)) {
2051 _mesa_error(ctx
, GL_INVALID_VALUE
,
2052 "glCopyTexSubImage%dD(xoffset=%d)", dimensions
, xoffset
);
2055 if (xoffset
+ width
> (GLint
) (teximage
->Width
+ teximage
->Border
)) {
2056 _mesa_error(ctx
, GL_INVALID_VALUE
,
2057 "glCopyTexSubImage%dD(xoffset+width)", dimensions
);
2060 if (dimensions
> 1) {
2061 if (yoffset
< -((GLint
)teximage
->Border
)) {
2062 _mesa_error(ctx
, GL_INVALID_VALUE
,
2063 "glCopyTexSubImage%dD(yoffset=%d)", dimensions
, yoffset
);
2066 /* NOTE: we're adding the border here, not subtracting! */
2067 if (yoffset
+ height
> (GLint
) (teximage
->Height
+ teximage
->Border
)) {
2068 _mesa_error(ctx
, GL_INVALID_VALUE
,
2069 "glCopyTexSubImage%dD(yoffset+height)", dimensions
);
2074 /* check z offset */
2075 if (dimensions
> 2) {
2076 if (zoffset
< -((GLint
)teximage
->Border
)) {
2077 _mesa_error(ctx
, GL_INVALID_VALUE
,
2078 "glCopyTexSubImage%dD(zoffset)", dimensions
);
2081 if (zoffset
> (GLint
) (teximage
->Depth
+ teximage
->Border
)) {
2082 _mesa_error(ctx
, GL_INVALID_VALUE
,
2083 "glCopyTexSubImage%dD(zoffset+depth)", dimensions
);
2088 if (_mesa_is_format_compressed(teximage
->TexFormat
)) {
2089 /* offset must be multiple of 4 */
2090 if ((xoffset
& 3) || (yoffset
& 3)) {
2091 _mesa_error(ctx
, GL_INVALID_VALUE
,
2092 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions
);
2095 /* size must be multiple of 4 */
2096 if ((width
& 3) != 0 && (GLuint
) width
!= teximage
->Width
) {
2097 _mesa_error(ctx
, GL_INVALID_VALUE
,
2098 "glCopyTexSubImage%dD(width)", dimensions
);
2101 if ((height
& 3) != 0 && (GLuint
) height
!= teximage
->Height
) {
2102 _mesa_error(ctx
, GL_INVALID_VALUE
,
2103 "glCopyTexSubImage%dD(height)", dimensions
);
2108 if (teximage
->InternalFormat
== GL_YCBCR_MESA
) {
2109 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glCopyTexSubImage2D");
2113 if (!_mesa_source_buffer_exists(ctx
, teximage
->_BaseFormat
)) {
2114 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2115 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2116 dimensions
, teximage
->_BaseFormat
);
2120 if (teximage
->_BaseFormat
== GL_DEPTH_COMPONENT
) {
2121 if (!ctx
->ReadBuffer
->_DepthBuffer
) {
2122 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2123 "glCopyTexSubImage%dD(no depth buffer)",
2128 else if (teximage
->_BaseFormat
== GL_DEPTH_STENCIL_EXT
) {
2129 if (!ctx
->ReadBuffer
->_DepthBuffer
|| !ctx
->ReadBuffer
->_StencilBuffer
) {
2130 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2131 "glCopyTexSubImage%dD(no depth/stencil buffer)",
2137 /* If copying into an integer texture, the source buffer must also be
2140 if (_mesa_is_format_integer_color(teximage
->TexFormat
)) {
2141 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2142 if (!_mesa_is_format_integer_color(rb
->Format
)) {
2143 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2144 "glCopyTexSubImage%dD(source buffer is not integer format)",
2150 /* if we get here, the parameters are OK */
2155 /** Callback info for walking over FBO hash table */
2158 struct gl_context
*ctx
;
2159 struct gl_texture_object
*texObj
;
2165 * Check render to texture callback. Called from _mesa_HashWalk().
2168 check_rtt_cb(GLuint key
, void *data
, void *userData
)
2170 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2171 const struct cb_info
*info
= (struct cb_info
*) userData
;
2172 struct gl_context
*ctx
= info
->ctx
;
2173 const struct gl_texture_object
*texObj
= info
->texObj
;
2174 const GLuint level
= info
->level
, face
= info
->face
;
2176 /* If this is a user-created FBO */
2179 /* check if any of the FBO's attachments point to 'texObj' */
2180 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2181 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2182 if (att
->Type
== GL_TEXTURE
&&
2183 att
->Texture
== texObj
&&
2184 att
->TextureLevel
== level
&&
2185 att
->CubeMapFace
== face
) {
2186 ASSERT(att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
]);
2187 /* Tell driver about the new renderbuffer texture */
2188 ctx
->Driver
.RenderTexture(ctx
, ctx
->DrawBuffer
, att
);
2189 /* Mark fb status as indeterminate to force re-validation */
2198 * When a texture image is specified we have to check if it's bound to
2199 * any framebuffer objects (render to texture) in order to detect changes
2200 * in size or format since that effects FBO completeness.
2201 * Any FBOs rendering into the texture must be re-validated.
2204 update_fbo_texture(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
2205 GLuint face
, GLuint level
)
2207 /* Only check this texture if it's been marked as RenderToTexture */
2208 if (texObj
->_RenderToTexture
) {
2209 struct cb_info info
;
2211 info
.texObj
= texObj
;
2214 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, check_rtt_cb
, &info
);
2220 * If the texture object's GenerateMipmap flag is set and we've
2221 * changed the texture base level image, regenerate the rest of the
2222 * mipmap levels now.
2225 check_gen_mipmap(struct gl_context
*ctx
, GLenum target
,
2226 struct gl_texture_object
*texObj
, GLint level
)
2228 ASSERT(target
!= GL_TEXTURE_CUBE_MAP
);
2229 if (texObj
->GenerateMipmap
&&
2230 level
== texObj
->BaseLevel
&&
2231 level
< texObj
->MaxLevel
) {
2232 ASSERT(ctx
->Driver
.GenerateMipmap
);
2233 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2238 /** Debug helper: override the user-requested internal format */
2240 override_internal_format(GLenum internalFormat
, GLint width
, GLint height
)
2243 if (internalFormat
== GL_RGBA16F_ARB
||
2244 internalFormat
== GL_RGBA32F_ARB
) {
2245 printf("Convert rgba float tex to int %d x %d\n", width
, height
);
2248 else if (internalFormat
== GL_RGB16F_ARB
||
2249 internalFormat
== GL_RGB32F_ARB
) {
2250 printf("Convert rgb float tex to int %d x %d\n", width
, height
);
2253 else if (internalFormat
== GL_LUMINANCE_ALPHA16F_ARB
||
2254 internalFormat
== GL_LUMINANCE_ALPHA32F_ARB
) {
2255 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2256 return GL_LUMINANCE_ALPHA
;
2258 else if (internalFormat
== GL_LUMINANCE16F_ARB
||
2259 internalFormat
== GL_LUMINANCE32F_ARB
) {
2260 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2261 return GL_LUMINANCE
;
2263 else if (internalFormat
== GL_ALPHA16F_ARB
||
2264 internalFormat
== GL_ALPHA32F_ARB
) {
2265 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2269 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2270 internalFormat = GL_RGBA;
2274 return internalFormat
;
2277 return internalFormat
;
2283 * Choose the actual hardware format for a texture image.
2284 * Try to use the same format as the previous image level when possible.
2285 * Otherwise, ask the driver for the best format.
2286 * It's important to try to choose a consistant format for all levels
2287 * for efficient texture memory layout/allocation. In particular, this
2288 * comes up during automatic mipmap generation.
2291 _mesa_choose_texture_format(struct gl_context
*ctx
,
2292 struct gl_texture_object
*texObj
,
2293 GLenum target
, GLint level
,
2294 GLenum internalFormat
, GLenum format
, GLenum type
)
2298 /* see if we've already chosen a format for the previous level */
2300 struct gl_texture_image
*prevImage
=
2301 _mesa_select_tex_image(ctx
, texObj
, target
, level
- 1);
2302 /* See if the prev level is defined and has an internal format which
2303 * matches the new internal format.
2306 prevImage
->Width
> 0 &&
2307 prevImage
->InternalFormat
== internalFormat
) {
2308 /* use the same format */
2309 ASSERT(prevImage
->TexFormat
!= MESA_FORMAT_NONE
);
2310 return prevImage
->TexFormat
;
2314 /* choose format from scratch */
2315 f
= ctx
->Driver
.ChooseTextureFormat(ctx
, internalFormat
, format
, type
);
2316 ASSERT(f
!= MESA_FORMAT_NONE
);
2322 * Common code to implement all the glTexImage1D/2D/3D functions.
2325 teximage(struct gl_context
*ctx
, GLuint dims
,
2326 GLenum target
, GLint level
, GLint internalFormat
,
2327 GLsizei width
, GLsizei height
, GLsizei depth
,
2328 GLint border
, GLenum format
, GLenum type
,
2329 const GLvoid
*pixels
)
2333 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2335 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2336 _mesa_debug(ctx
, "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2338 _mesa_lookup_enum_by_nr(target
), level
,
2339 _mesa_lookup_enum_by_nr(internalFormat
),
2340 width
, height
, depth
, border
,
2341 _mesa_lookup_enum_by_nr(format
),
2342 _mesa_lookup_enum_by_nr(type
), pixels
);
2344 internalFormat
= override_internal_format(internalFormat
, width
, height
);
2346 /* target error checking */
2347 if (!legal_teximage_target(ctx
, dims
, target
)) {
2348 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexImage%uD(target=%s)",
2349 dims
, _mesa_lookup_enum_by_nr(target
));
2353 /* general error checking */
2354 error
= texture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2355 format
, type
, width
, height
, depth
, border
);
2357 if (_mesa_is_proxy_texture(target
)) {
2358 /* Proxy texture: just clear or set state depending on error checking */
2359 struct gl_texture_image
*texImage
=
2360 _mesa_get_proxy_tex_image(ctx
, target
, level
);
2363 /* when error, clear all proxy texture image parameters */
2365 clear_teximage_fields(texImage
);
2368 /* no error, set the tex image parameters */
2369 struct gl_texture_object
*texObj
=
2370 _mesa_get_current_tex_object(ctx
, target
);
2371 gl_format texFormat
= _mesa_choose_texture_format(ctx
, texObj
,
2376 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
2377 _mesa_init_teximage_fields(ctx
, target
, texImage
, width
, height
,
2378 depth
, border
, internalFormat
,
2381 else if (texImage
) {
2382 clear_teximage_fields(texImage
);
2387 /* non-proxy target */
2388 const GLuint face
= _mesa_tex_target_to_face(target
);
2389 struct gl_texture_object
*texObj
;
2390 struct gl_texture_image
*texImage
;
2393 return; /* error was recorded */
2396 if (ctx
->NewState
& _MESA_NEW_TRANSFER_STATE
)
2397 _mesa_update_state(ctx
);
2399 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2401 _mesa_lock_texture(ctx
, texObj
);
2403 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
2406 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
2409 gl_format texFormat
;
2411 if (texImage
->Data
) {
2412 ctx
->Driver
.FreeTexImageData( ctx
, texImage
);
2415 ASSERT(texImage
->Data
== NULL
);
2416 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
2417 internalFormat
, format
,
2420 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
2421 _mesa_init_teximage_fields(ctx
, target
, texImage
,
2422 width
, height
, depth
,
2423 border
, internalFormat
, texFormat
);
2425 /* Give the texture to the driver. <pixels> may be null. */
2426 ASSERT(ctx
->Driver
.TexImage3D
);
2429 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
2430 width
, border
, format
,
2431 type
, pixels
, &ctx
->Unpack
, texObj
,
2435 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
2436 width
, height
, border
, format
,
2437 type
, pixels
, &ctx
->Unpack
, texObj
,
2441 ctx
->Driver
.TexImage3D(ctx
, target
, level
, internalFormat
,
2442 width
, height
, depth
, border
, format
,
2443 type
, pixels
, &ctx
->Unpack
, texObj
,
2447 _mesa_problem(ctx
, "invalid dims=%u in teximage()", dims
);
2450 check_gen_mipmap(ctx
, target
, texObj
, level
);
2452 update_fbo_texture(ctx
, texObj
, face
, level
);
2455 texObj
->_Complete
= GL_FALSE
;
2456 ctx
->NewState
|= _NEW_TEXTURE
;
2459 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
2463 _mesa_unlock_texture(ctx
, texObj
);
2469 * Called from the API. Note that width includes the border.
2472 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalFormat
,
2473 GLsizei width
, GLint border
, GLenum format
,
2474 GLenum type
, const GLvoid
*pixels
)
2476 GET_CURRENT_CONTEXT(ctx
);
2477 teximage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1,
2478 border
, format
, type
, pixels
);
2483 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalFormat
,
2484 GLsizei width
, GLsizei height
, GLint border
,
2485 GLenum format
, GLenum type
,
2486 const GLvoid
*pixels
)
2488 GET_CURRENT_CONTEXT(ctx
);
2489 teximage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1,
2490 border
, format
, type
, pixels
);
2495 * Called by the API or display list executor.
2496 * Note that width and height include the border.
2499 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalFormat
,
2500 GLsizei width
, GLsizei height
, GLsizei depth
,
2501 GLint border
, GLenum format
, GLenum type
,
2502 const GLvoid
*pixels
)
2504 GET_CURRENT_CONTEXT(ctx
);
2505 teximage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
2506 border
, format
, type
, pixels
);
2511 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalFormat
,
2512 GLsizei width
, GLsizei height
, GLsizei depth
,
2513 GLint border
, GLenum format
, GLenum type
,
2514 const GLvoid
*pixels
)
2516 _mesa_TexImage3D(target
, level
, (GLint
) internalFormat
, width
, height
,
2517 depth
, border
, format
, type
, pixels
);
2521 #if FEATURE_OES_EGL_image
2523 _mesa_EGLImageTargetTexture2DOES (GLenum target
, GLeglImageOES image
)
2525 struct gl_texture_object
*texObj
;
2526 struct gl_texture_image
*texImage
;
2527 GET_CURRENT_CONTEXT(ctx
);
2528 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2530 if (!ctx
->Extensions
.OES_EGL_image
) {
2531 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2532 "glEGLImageTargetTexture2DOES(unsupported)");
2536 if (target
!= GL_TEXTURE_2D
) {
2537 _mesa_error(ctx
, GL_INVALID_ENUM
,
2538 "glEGLImageTargetTexture2D(target=%d)", target
);
2542 if (ctx
->NewState
& _MESA_NEW_TRANSFER_STATE
)
2543 _mesa_update_state(ctx
);
2545 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2546 _mesa_lock_texture(ctx
, texObj
);
2548 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
2550 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glEGLImageTargetTexture2D");
2553 ctx
->Driver
.FreeTexImageData( ctx
, texImage
);
2555 ASSERT(texImage
->Data
== NULL
);
2556 ctx
->Driver
.EGLImageTargetTexture2D(ctx
, target
,
2557 texObj
, texImage
, image
);
2560 texObj
->_Complete
= GL_FALSE
;
2561 ctx
->NewState
|= _NEW_TEXTURE
;
2563 _mesa_unlock_texture(ctx
, texObj
);
2571 * Implement all the glTexSubImage1/2/3D() functions.
2574 texsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
2575 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2576 GLsizei width
, GLsizei height
, GLsizei depth
,
2577 GLenum format
, GLenum type
, const GLvoid
*pixels
)
2579 struct gl_texture_object
*texObj
;
2580 struct gl_texture_image
*texImage
;
2582 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2584 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2585 _mesa_debug(ctx
, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
2587 _mesa_lookup_enum_by_nr(target
), level
,
2588 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
2589 _mesa_lookup_enum_by_nr(format
),
2590 _mesa_lookup_enum_by_nr(type
), pixels
);
2592 /* check target (proxies not allowed) */
2593 if (!legal_texsubimage_target(ctx
, dims
, target
)) {
2594 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
2595 dims
, _mesa_lookup_enum_by_nr(target
));
2599 if (ctx
->NewState
& _MESA_NEW_TRANSFER_STATE
)
2600 _mesa_update_state(ctx
);
2602 if (subtexture_error_check(ctx
, dims
, target
, level
, xoffset
, yoffset
, zoffset
,
2603 width
, height
, depth
, format
, type
)) {
2604 return; /* error was detected */
2607 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2609 _mesa_lock_texture(ctx
, texObj
);
2611 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2613 if (subtexture_error_check2(ctx
, dims
, target
, level
,
2614 xoffset
, yoffset
, zoffset
,
2615 width
, height
, depth
,
2616 format
, type
, texImage
)) {
2617 /* error was recorded */
2619 else if (width
> 0 && height
> 0 && height
> 0) {
2620 /* If we have a border, offset=-1 is legal. Bias by border width. */
2623 zoffset
+= texImage
->Border
;
2626 yoffset
+= texImage
->Border
;
2629 xoffset
+= texImage
->Border
;
2634 ctx
->Driver
.TexSubImage1D(ctx
, target
, level
,
2636 format
, type
, pixels
,
2637 &ctx
->Unpack
, texObj
, texImage
);
2640 ctx
->Driver
.TexSubImage2D(ctx
, target
, level
,
2641 xoffset
, yoffset
, width
, height
,
2642 format
, type
, pixels
,
2643 &ctx
->Unpack
, texObj
, texImage
);
2646 ctx
->Driver
.TexSubImage3D(ctx
, target
, level
,
2647 xoffset
, yoffset
, zoffset
,
2648 width
, height
, depth
,
2649 format
, type
, pixels
,
2650 &ctx
->Unpack
, texObj
, texImage
);
2653 _mesa_problem(ctx
, "unexpected dims in subteximage()");
2656 check_gen_mipmap(ctx
, target
, texObj
, level
);
2658 ctx
->NewState
|= _NEW_TEXTURE
;
2661 _mesa_unlock_texture(ctx
, texObj
);
2666 _mesa_TexSubImage1D( GLenum target
, GLint level
,
2667 GLint xoffset
, GLsizei width
,
2668 GLenum format
, GLenum type
,
2669 const GLvoid
*pixels
)
2671 GET_CURRENT_CONTEXT(ctx
);
2672 texsubimage(ctx
, 1, target
, level
,
2675 format
, type
, pixels
);
2680 _mesa_TexSubImage2D( GLenum target
, GLint level
,
2681 GLint xoffset
, GLint yoffset
,
2682 GLsizei width
, GLsizei height
,
2683 GLenum format
, GLenum type
,
2684 const GLvoid
*pixels
)
2686 GET_CURRENT_CONTEXT(ctx
);
2687 texsubimage(ctx
, 2, target
, level
,
2688 xoffset
, yoffset
, 0,
2690 format
, type
, pixels
);
2696 _mesa_TexSubImage3D( GLenum target
, GLint level
,
2697 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2698 GLsizei width
, GLsizei height
, GLsizei depth
,
2699 GLenum format
, GLenum type
,
2700 const GLvoid
*pixels
)
2702 GET_CURRENT_CONTEXT(ctx
);
2703 texsubimage(ctx
, 3, target
, level
,
2704 xoffset
, yoffset
, zoffset
,
2705 width
, height
, depth
,
2706 format
, type
, pixels
);
2712 * Implement the glCopyTexImage1/2D() functions.
2715 copyteximage(struct gl_context
*ctx
, GLuint dims
,
2716 GLenum target
, GLint level
, GLenum internalFormat
,
2717 GLint x
, GLint y
, GLsizei width
, GLsizei height
, GLint border
)
2719 struct gl_texture_object
*texObj
;
2720 struct gl_texture_image
*texImage
;
2721 const GLuint face
= _mesa_tex_target_to_face(target
);
2723 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2725 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2726 _mesa_debug(ctx
, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
2728 _mesa_lookup_enum_by_nr(target
), level
,
2729 _mesa_lookup_enum_by_nr(internalFormat
),
2730 x
, y
, width
, height
, border
);
2732 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
2733 _mesa_update_state(ctx
);
2735 if (copytexture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2736 width
, height
, border
))
2739 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2741 _mesa_lock_texture(ctx
, texObj
);
2743 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
2746 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
2749 gl_format texFormat
;
2751 if (texImage
->Data
) {
2752 ctx
->Driver
.FreeTexImageData( ctx
, texImage
);
2755 ASSERT(texImage
->Data
== NULL
);
2757 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
2758 internalFormat
, GL_NONE
,
2761 if (legal_texture_size(ctx
, texFormat
, width
, height
, 1)) {
2762 _mesa_init_teximage_fields(ctx
, target
, texImage
, width
, height
, 1,
2763 border
, internalFormat
, texFormat
);
2765 ASSERT(ctx
->Driver
.CopyTexImage2D
);
2767 ctx
->Driver
.CopyTexImage1D(ctx
, target
, level
, internalFormat
,
2768 x
, y
, width
, border
);
2770 ctx
->Driver
.CopyTexImage2D(ctx
, target
, level
, internalFormat
,
2771 x
, y
, width
, height
, border
);
2773 check_gen_mipmap(ctx
, target
, texObj
, level
);
2775 update_fbo_texture(ctx
, texObj
, face
, level
);
2778 texObj
->_Complete
= GL_FALSE
;
2779 ctx
->NewState
|= _NEW_TEXTURE
;
2782 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
2786 _mesa_unlock_texture(ctx
, texObj
);
2792 _mesa_CopyTexImage1D( GLenum target
, GLint level
,
2793 GLenum internalFormat
,
2795 GLsizei width
, GLint border
)
2797 GET_CURRENT_CONTEXT(ctx
);
2798 copyteximage(ctx
, 1, target
, level
, internalFormat
, x
, y
, width
, 1, border
);
2804 _mesa_CopyTexImage2D( GLenum target
, GLint level
, GLenum internalFormat
,
2805 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
2808 GET_CURRENT_CONTEXT(ctx
);
2809 copyteximage(ctx
, 2, target
, level
, internalFormat
,
2810 x
, y
, width
, height
, border
);
2816 * Implementation for glCopyTexSubImage1/2/3D() functions.
2819 copytexsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
2820 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2821 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
2823 struct gl_texture_object
*texObj
;
2824 struct gl_texture_image
*texImage
;
2826 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2828 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2829 _mesa_debug(ctx
, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
2831 _mesa_lookup_enum_by_nr(target
),
2832 level
, xoffset
, yoffset
, zoffset
, x
, y
, width
, height
);
2834 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
2835 _mesa_update_state(ctx
);
2837 if (copytexsubimage_error_check1(ctx
, dims
, target
, level
))
2840 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2842 _mesa_lock_texture(ctx
, texObj
);
2844 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2846 if (copytexsubimage_error_check2(ctx
, dims
, target
, level
, xoffset
, yoffset
,
2847 zoffset
, width
, height
, texImage
)) {
2848 /* error was recored */
2851 /* If we have a border, offset=-1 is legal. Bias by border width. */
2854 zoffset
+= texImage
->Border
;
2857 yoffset
+= texImage
->Border
;
2860 xoffset
+= texImage
->Border
;
2863 if (_mesa_clip_copytexsubimage(ctx
, &xoffset
, &yoffset
, &x
, &y
,
2867 ctx
->Driver
.CopyTexSubImage1D(ctx
, target
, level
,
2868 xoffset
, x
, y
, width
);
2871 ctx
->Driver
.CopyTexSubImage2D(ctx
, target
, level
,
2873 x
, y
, width
, height
);
2876 ctx
->Driver
.CopyTexSubImage3D(ctx
, target
, level
,
2877 xoffset
, yoffset
, zoffset
,
2878 x
, y
, width
, height
);
2881 _mesa_problem(ctx
, "bad dims in copytexsubimage()");
2884 check_gen_mipmap(ctx
, target
, texObj
, level
);
2886 ctx
->NewState
|= _NEW_TEXTURE
;
2890 _mesa_unlock_texture(ctx
, texObj
);
2895 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
,
2896 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
2898 GET_CURRENT_CONTEXT(ctx
);
2899 copytexsubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, x
, y
, width
, 1);
2905 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
2906 GLint xoffset
, GLint yoffset
,
2907 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
2909 GET_CURRENT_CONTEXT(ctx
);
2910 copytexsubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0, x
, y
,
2917 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
2918 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2919 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
2921 GET_CURRENT_CONTEXT(ctx
);
2922 copytexsubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
2923 x
, y
, width
, height
);
2929 /**********************************************************************/
2930 /****** Compressed Textures ******/
2931 /**********************************************************************/
2935 * Return expected size of a compressed texture.
2938 compressed_tex_size(GLsizei width
, GLsizei height
, GLsizei depth
,
2941 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
2942 return _mesa_format_image_size(mesaFormat
, width
, height
, depth
);
2947 * Return compressed texture block size, in pixels.
2950 get_compressed_block_size(GLenum glformat
, GLuint
*bw
, GLuint
*bh
)
2952 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
2953 _mesa_get_format_block_size(mesaFormat
, bw
, bh
);
2958 * Error checking for glCompressedTexImage[123]D().
2959 * \return error code or GL_NO_ERROR.
2962 compressed_texture_error_check(struct gl_context
*ctx
, GLint dimensions
,
2963 GLenum target
, GLint level
,
2964 GLenum internalFormat
, GLsizei width
,
2965 GLsizei height
, GLsizei depth
, GLint border
,
2968 const GLenum proxyTarget
= get_proxy_target(target
);
2969 const GLint maxLevels
= _mesa_max_texture_levels(ctx
, target
);
2973 if (level
< 0 || level
>= maxLevels
)
2974 return GL_INVALID_VALUE
;
2976 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2977 return GL_INVALID_ENUM
;
2980 /* This will detect any invalid internalFormat value */
2981 if (!_mesa_is_compressed_format(ctx
, internalFormat
))
2982 return GL_INVALID_ENUM
;
2984 /* This should really never fail */
2985 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0)
2986 return GL_INVALID_ENUM
;
2988 /* No compressed formats support borders at this time */
2990 return GL_INVALID_VALUE
;
2992 /* For cube map, width must equal height */
2993 if (target
>= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
&&
2994 target
<= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
&& width
!= height
)
2995 return GL_INVALID_VALUE
;
2997 /* check image size against compression block size */
2999 gl_format texFormat
=
3000 ctx
->Driver
.ChooseTextureFormat(ctx
, internalFormat
,
3004 _mesa_get_format_block_size(texFormat
, &bw
, &bh
);
3005 if ((width
> bw
&& width
% bw
> 0) ||
3006 (height
> bh
&& height
% bh
> 0)) {
3008 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is
3009 * generated [...] if any parameter combinations are not
3010 * supported by the specific compressed internal format.
3012 return GL_INVALID_OPERATION
;
3016 /* check image sizes */
3017 if (!ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
3018 internalFormat
, GL_NONE
, GL_NONE
,
3019 width
, height
, depth
, border
)) {
3020 /* See error comment above */
3021 return GL_INVALID_OPERATION
;
3024 /* check image size in bytes */
3025 expectedSize
= compressed_tex_size(width
, height
, depth
, internalFormat
);
3026 if (expectedSize
!= imageSize
) {
3027 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
3028 * if <imageSize> is not consistent with the format, dimensions, and
3029 * contents of the specified image.
3031 return GL_INVALID_VALUE
;
3039 * Error checking for glCompressedTexSubImage[123]D().
3040 * \warning There are some bad assumptions here about the size of compressed
3041 * texture tiles (multiple of 4) used to test the validity of the
3042 * offset and size parameters.
3043 * \return error code or GL_NO_ERROR.
3046 compressed_subtexture_error_check(struct gl_context
*ctx
, GLint dimensions
,
3047 GLenum target
, GLint level
,
3048 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3049 GLsizei width
, GLsizei height
, GLsizei depth
,
3050 GLenum format
, GLsizei imageSize
)
3052 GLint expectedSize
, maxLevels
= 0, maxTextureSize
;
3056 if (dimensions
== 1) {
3057 /* 1D compressed textures not allowed */
3058 return GL_INVALID_ENUM
;
3060 else if (dimensions
== 2) {
3061 if (target
== GL_PROXY_TEXTURE_2D
) {
3062 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3064 else if (target
== GL_TEXTURE_2D
) {
3065 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3067 else if (target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
) {
3068 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3069 return GL_INVALID_ENUM
; /*target*/
3070 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3072 else if (target
>= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
&&
3073 target
<= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
) {
3074 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3075 return GL_INVALID_ENUM
; /*target*/
3076 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3079 return GL_INVALID_ENUM
; /*target*/
3082 else if (dimensions
== 3) {
3083 /* 3D compressed textures not allowed */
3084 return GL_INVALID_ENUM
;
3087 maxTextureSize
= 1 << (maxLevels
- 1);
3089 /* this will catch any invalid compressed format token */
3090 if (!_mesa_is_compressed_format(ctx
, format
))
3091 return GL_INVALID_ENUM
;
3093 if (width
< 1 || width
> maxTextureSize
)
3094 return GL_INVALID_VALUE
;
3096 if ((height
< 1 || height
> maxTextureSize
)
3098 return GL_INVALID_VALUE
;
3100 if (level
< 0 || level
>= maxLevels
)
3101 return GL_INVALID_VALUE
;
3104 * do checks which depend on compression block size
3106 get_compressed_block_size(format
, &bw
, &bh
);
3108 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0))
3109 return GL_INVALID_VALUE
;
3111 if ((width
% bw
!= 0) && width
!= 2 && width
!= 1)
3112 return GL_INVALID_VALUE
;
3114 if ((height
% bh
!= 0) && height
!= 2 && height
!= 1)
3115 return GL_INVALID_VALUE
;
3117 expectedSize
= compressed_tex_size(width
, height
, depth
, format
);
3118 if (expectedSize
!= imageSize
)
3119 return GL_INVALID_VALUE
;
3126 * Do second part of glCompressedTexSubImage error checking.
3127 * \return GL_TRUE if error found, GL_FALSE otherwise.
3130 compressed_subtexture_error_check2(struct gl_context
*ctx
, GLuint dims
,
3131 GLsizei width
, GLsizei height
,
3132 GLsizei depth
, GLenum format
,
3133 struct gl_texture_image
*texImage
)
3136 if ((GLint
) format
!= texImage
->InternalFormat
) {
3137 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3138 "glCompressedTexSubImage%uD(format=0x%x)", dims
, format
);
3142 if (((width
== 1 || width
== 2) &&
3143 width
!= (GLsizei
) texImage
->Width
) ||
3144 (width
> (GLsizei
) texImage
->Width
)) {
3145 _mesa_error(ctx
, GL_INVALID_VALUE
,
3146 "glCompressedTexSubImage%uD(width=%d)", dims
, width
);
3151 if (((height
== 1 || height
== 2) &&
3152 height
!= (GLsizei
) texImage
->Height
) ||
3153 (height
> (GLsizei
) texImage
->Height
)) {
3154 _mesa_error(ctx
, GL_INVALID_VALUE
,
3155 "glCompressedTexSubImage%uD(height=%d)", dims
, height
);
3161 if (((depth
== 1 || depth
== 2) &&
3162 depth
!= (GLsizei
) texImage
->Depth
) ||
3163 (depth
> (GLsizei
) texImage
->Depth
)) {
3164 _mesa_error(ctx
, GL_INVALID_VALUE
,
3165 "glCompressedTexSubImage%uD(depth=%d)", dims
, depth
);
3175 * Implementation of the glCompressedTexImage1/2/3D() functions.
3178 compressedteximage(struct gl_context
*ctx
, GLuint dims
,
3179 GLenum target
, GLint level
,
3180 GLenum internalFormat
, GLsizei width
,
3181 GLsizei height
, GLsizei depth
, GLint border
,
3182 GLsizei imageSize
, const GLvoid
*data
)
3186 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3188 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3190 "glCompressedTexImage%uDARB %s %d %s %d %d %d %d %d %p\n",
3192 _mesa_lookup_enum_by_nr(target
), level
,
3193 _mesa_lookup_enum_by_nr(internalFormat
),
3194 width
, height
, depth
, border
, imageSize
, data
);
3197 if (!legal_teximage_target(ctx
, dims
, target
)) {
3198 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCompressedTexImage%uD(target=%s)",
3199 dims
, _mesa_lookup_enum_by_nr(target
));
3203 error
= compressed_texture_error_check(ctx
, dims
, target
, level
,
3204 internalFormat
, width
, height
, depth
,
3208 /* XXX this is kind of a hack */
3210 _mesa_error(ctx
, error
, "glTexImage2D");
3215 switch (internalFormat
) {
3216 case GL_PALETTE4_RGB8_OES
:
3217 case GL_PALETTE4_RGBA8_OES
:
3218 case GL_PALETTE4_R5_G6_B5_OES
:
3219 case GL_PALETTE4_RGBA4_OES
:
3220 case GL_PALETTE4_RGB5_A1_OES
:
3221 case GL_PALETTE8_RGB8_OES
:
3222 case GL_PALETTE8_RGBA8_OES
:
3223 case GL_PALETTE8_R5_G6_B5_OES
:
3224 case GL_PALETTE8_RGBA4_OES
:
3225 case GL_PALETTE8_RGB5_A1_OES
:
3226 _mesa_cpal_compressed_teximage2d(target
, level
, internalFormat
,
3227 width
, height
, imageSize
, data
);
3233 if (_mesa_is_proxy_texture(target
)) {
3234 /* Proxy texture: just check for errors and update proxy state */
3235 struct gl_texture_image
*texImage
;
3238 struct gl_texture_object
*texObj
=
3239 _mesa_get_current_tex_object(ctx
, target
);
3240 gl_format texFormat
=
3241 _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3242 internalFormat
, GL_NONE
, GL_NONE
);
3243 if (!legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
3244 error
= GL_OUT_OF_MEMORY
;
3248 texImage
= _mesa_get_proxy_tex_image(ctx
, target
, level
);
3251 /* if error, clear all proxy texture image parameters */
3252 clear_teximage_fields(texImage
);
3255 /* no error: store the teximage parameters */
3256 _mesa_init_teximage_fields(ctx
, target
, texImage
, width
, height
,
3257 depth
, border
, internalFormat
,
3263 /* non-proxy target */
3264 struct gl_texture_object
*texObj
;
3265 struct gl_texture_image
*texImage
;
3268 _mesa_error(ctx
, error
, "glCompressedTexImage%uD", dims
);
3272 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3274 _mesa_lock_texture(ctx
, texObj
);
3276 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3278 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3279 "glCompressedTexImage%uD", dims
);
3282 gl_format texFormat
;
3284 if (texImage
->Data
) {
3285 ctx
->Driver
.FreeTexImageData( ctx
, texImage
);
3287 ASSERT(texImage
->Data
== NULL
);
3289 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3290 internalFormat
, GL_NONE
,
3293 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
3294 _mesa_init_teximage_fields(ctx
, target
, texImage
,
3295 width
, height
, depth
,
3296 border
, internalFormat
, texFormat
);
3300 ASSERT(ctx
->Driver
.CompressedTexImage1D
);
3301 ctx
->Driver
.CompressedTexImage1D(ctx
, target
, level
,
3304 border
, imageSize
, data
,
3308 ASSERT(ctx
->Driver
.CompressedTexImage2D
);
3309 ctx
->Driver
.CompressedTexImage2D(ctx
, target
, level
,
3312 border
, imageSize
, data
,
3316 ASSERT(ctx
->Driver
.CompressedTexImage3D
);
3317 ctx
->Driver
.CompressedTexImage3D(ctx
, target
, level
,
3319 width
, height
, depth
,
3320 border
, imageSize
, data
,
3324 _mesa_problem(ctx
, "bad dims in compressedteximage");
3327 check_gen_mipmap(ctx
, target
, texObj
, level
);
3330 texObj
->_Complete
= GL_FALSE
;
3331 ctx
->NewState
|= _NEW_TEXTURE
;
3334 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3335 "glCompressedTexImage%uD", dims
);
3339 _mesa_unlock_texture(ctx
, texObj
);
3345 _mesa_CompressedTexImage1DARB(GLenum target
, GLint level
,
3346 GLenum internalFormat
, GLsizei width
,
3347 GLint border
, GLsizei imageSize
,
3350 GET_CURRENT_CONTEXT(ctx
);
3351 compressedteximage(ctx
, 1, target
, level
, internalFormat
,
3352 width
, 1, 1, border
, imageSize
, data
);
3357 _mesa_CompressedTexImage2DARB(GLenum target
, GLint level
,
3358 GLenum internalFormat
, GLsizei width
,
3359 GLsizei height
, GLint border
, GLsizei imageSize
,
3362 GET_CURRENT_CONTEXT(ctx
);
3363 compressedteximage(ctx
, 2, target
, level
, internalFormat
,
3364 width
, height
, 1, border
, imageSize
, data
);
3369 _mesa_CompressedTexImage3DARB(GLenum target
, GLint level
,
3370 GLenum internalFormat
, GLsizei width
,
3371 GLsizei height
, GLsizei depth
, GLint border
,
3372 GLsizei imageSize
, const GLvoid
*data
)
3374 GET_CURRENT_CONTEXT(ctx
);
3375 compressedteximage(ctx
, 3, target
, level
, internalFormat
,
3376 width
, height
, depth
, border
, imageSize
, data
);
3381 * Common helper for glCompressedTexSubImage1/2/3D().
3384 compressed_tex_sub_image(GLuint dims
, GLenum target
, GLint level
,
3385 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3386 GLsizei width
, GLsizei height
, GLsizei depth
,
3387 GLenum format
, GLsizei imageSize
, const GLvoid
*data
)
3389 struct gl_texture_object
*texObj
;
3390 struct gl_texture_image
*texImage
;
3392 GET_CURRENT_CONTEXT(ctx
);
3393 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3395 error
= compressed_subtexture_error_check(ctx
, dims
, target
, level
,
3396 xoffset
, 0, 0, /* pos */
3397 width
, height
, depth
, /* size */
3400 _mesa_error(ctx
, error
, "glCompressedTexSubImage%uD", dims
);
3404 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3406 _mesa_lock_texture(ctx
, texObj
);
3408 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3411 if (compressed_subtexture_error_check2(ctx
, dims
, width
, height
, depth
,
3412 format
, texImage
)) {
3413 /* error was recorded */
3415 else if (width
> 0 && height
> 0 && depth
> 0) {
3418 if (ctx
->Driver
.CompressedTexSubImage1D
) {
3419 ctx
->Driver
.CompressedTexSubImage1D(ctx
, target
, level
,
3421 format
, imageSize
, data
,
3426 if (ctx
->Driver
.CompressedTexSubImage2D
) {
3427 ctx
->Driver
.CompressedTexSubImage2D(ctx
, target
, level
,
3430 format
, imageSize
, data
,
3435 if (ctx
->Driver
.CompressedTexSubImage3D
) {
3436 ctx
->Driver
.CompressedTexSubImage3D(ctx
, target
, level
,
3437 xoffset
, yoffset
, zoffset
,
3438 width
, height
, depth
,
3439 format
, imageSize
, data
,
3447 check_gen_mipmap(ctx
, target
, texObj
, level
);
3449 ctx
->NewState
|= _NEW_TEXTURE
;
3452 _mesa_unlock_texture(ctx
, texObj
);
3457 _mesa_CompressedTexSubImage1DARB(GLenum target
, GLint level
, GLint xoffset
,
3458 GLsizei width
, GLenum format
,
3459 GLsizei imageSize
, const GLvoid
*data
)
3461 compressed_tex_sub_image(1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
3462 format
, imageSize
, data
);
3467 _mesa_CompressedTexSubImage2DARB(GLenum target
, GLint level
, GLint xoffset
,
3468 GLint yoffset
, GLsizei width
, GLsizei height
,
3469 GLenum format
, GLsizei imageSize
,
3472 compressed_tex_sub_image(2, target
, level
, xoffset
, yoffset
, 0,
3473 width
, height
, 1, format
, imageSize
, data
);
3478 _mesa_CompressedTexSubImage3DARB(GLenum target
, GLint level
, GLint xoffset
,
3479 GLint yoffset
, GLint zoffset
, GLsizei width
,
3480 GLsizei height
, GLsizei depth
, GLenum format
,
3481 GLsizei imageSize
, const GLvoid
*data
)
3483 compressed_tex_sub_image(3, target
, level
, xoffset
, yoffset
, zoffset
,
3484 width
, height
, depth
, format
, imageSize
, data
);