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 supports compressed textures
1355 target_can_be_compressed(struct gl_context
*ctx
, GLenum target
)
1359 case GL_PROXY_TEXTURE_2D
:
1361 case GL_PROXY_TEXTURE_CUBE_MAP
:
1362 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1363 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1364 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1365 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1366 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1367 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1368 return ctx
->Extensions
.ARB_texture_cube_map
;
1369 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1370 case GL_TEXTURE_2D_ARRAY_EXT
:
1371 return ctx
->Extensions
.MESA_texture_array
;
1379 * Check if the given texture target value is legal for a
1380 * glTexImage1/2/3D call.
1383 legal_teximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1389 case GL_PROXY_TEXTURE_1D
:
1397 case GL_PROXY_TEXTURE_2D
:
1399 case GL_PROXY_TEXTURE_CUBE_MAP
:
1400 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1401 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1402 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1403 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1404 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1405 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1406 return ctx
->Extensions
.ARB_texture_cube_map
;
1407 case GL_TEXTURE_RECTANGLE_NV
:
1408 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1409 return ctx
->Extensions
.NV_texture_rectangle
;
1410 case GL_TEXTURE_1D_ARRAY_EXT
:
1411 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1412 return ctx
->Extensions
.MESA_texture_array
;
1419 case GL_PROXY_TEXTURE_3D
:
1421 case GL_TEXTURE_2D_ARRAY_EXT
:
1422 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1423 return ctx
->Extensions
.MESA_texture_array
;
1428 _mesa_problem(ctx
, "invalid dims=%u in legal_teximage_target()", dims
);
1435 * Check if the given texture target value is legal for a
1436 * glCopyTexImage1/2D call.
1439 legal_copyteximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1443 return target
== GL_TEXTURE_1D
;
1448 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1449 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1450 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1451 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1452 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1453 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1454 return ctx
->Extensions
.ARB_texture_cube_map
;
1455 case GL_TEXTURE_RECTANGLE_NV
:
1456 return ctx
->Extensions
.NV_texture_rectangle
;
1457 case GL_TEXTURE_1D_ARRAY_EXT
:
1458 return ctx
->Extensions
.MESA_texture_array
;
1463 _mesa_problem(ctx
, "invalid dims=%u in legal_copyteximage_target()", dims
);
1470 * Check if the given texture target value is legal for a
1471 * glCompressedTexImage1/2/3D call.
1474 legal_compressed_teximage_target(struct gl_context
*ctx
, GLuint dims
,
1479 return GL_FALSE
; /* No 1D compresssed textures yet */
1483 case GL_PROXY_TEXTURE_2D
:
1485 case GL_PROXY_TEXTURE_CUBE_MAP
:
1486 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1487 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1488 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1489 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1490 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1491 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1492 return ctx
->Extensions
.ARB_texture_cube_map
;
1493 case GL_TEXTURE_RECTANGLE_NV
:
1494 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1495 return GL_FALSE
; /* not supported yet */
1496 case GL_TEXTURE_1D_ARRAY_EXT
:
1497 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1498 return GL_FALSE
; /* not supported yet */
1503 return GL_FALSE
; /* No 3D compressed textures yet */
1506 "invalid dims=%u in legal_compressed_teximage_target()",
1515 * Test the glTexImage[123]D() parameters for errors.
1517 * \param ctx GL context.
1518 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1519 * \param target texture target given by the user.
1520 * \param level image level given by the user.
1521 * \param internalFormat internal format given by the user.
1522 * \param format pixel data format given by the user.
1523 * \param type pixel data type given by the user.
1524 * \param width image width given by the user.
1525 * \param height image height given by the user.
1526 * \param depth image depth given by the user.
1527 * \param border image border given by the user.
1529 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1531 * Verifies each of the parameters against the constants specified in
1532 * __struct gl_contextRec::Const and the supported extensions, and according
1533 * to the OpenGL specification.
1536 texture_error_check( struct gl_context
*ctx
,
1537 GLuint dimensions
, GLenum target
,
1538 GLint level
, GLint internalFormat
,
1539 GLenum format
, GLenum type
,
1540 GLint width
, GLint height
,
1541 GLint depth
, GLint border
)
1543 const GLenum proxyTarget
= get_proxy_target(target
);
1544 const GLboolean isProxy
= target
== proxyTarget
;
1545 GLboolean sizeOK
= GL_TRUE
;
1546 GLboolean colorFormat
, indexFormat
;
1548 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1549 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1551 _mesa_error(ctx
, GL_INVALID_VALUE
,
1552 "glTexImage%dD(level=%d)", dimensions
, level
);
1558 if (border
< 0 || border
> 1 ||
1559 ((target
== GL_TEXTURE_RECTANGLE_NV
||
1560 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1562 _mesa_error(ctx
, GL_INVALID_VALUE
,
1563 "glTexImage%dD(border=%d)", dimensions
, border
);
1568 if (width
< 0 || height
< 0 || depth
< 0) {
1570 _mesa_error(ctx
, GL_INVALID_VALUE
,
1571 "glTexImage%dD(width, height or depth < 0)", dimensions
);
1576 /* Do this simple check before calling the TestProxyTexImage() function */
1577 if (proxyTarget
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
) {
1578 sizeOK
= (width
== height
);
1582 * Use the proxy texture driver hook to see if the size/level/etc are
1585 sizeOK
= sizeOK
&& ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
1586 internalFormat
, format
,
1587 type
, width
, height
,
1591 _mesa_error(ctx
, GL_INVALID_VALUE
,
1592 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1593 dimensions
, level
, width
, height
, depth
);
1598 /* Check internalFormat */
1599 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1601 _mesa_error(ctx
, GL_INVALID_VALUE
,
1602 "glTexImage%dD(internalFormat=%s)",
1603 dimensions
, _mesa_lookup_enum_by_nr(internalFormat
));
1608 /* Check incoming image format and type */
1609 if (!_mesa_is_legal_format_and_type(ctx
, format
, type
)) {
1610 /* Normally, GL_INVALID_OPERATION is generated by a format/type
1611 * mismatch (see the 1.2 spec page 94, sec 3.6.4.). But with the
1612 * GL_EXT_texture_integer extension, some combinations should generate
1613 * GL_INVALID_ENUM instead (grr!).
1616 GLenum error
= _mesa_is_integer_format(format
)
1617 ? GL_INVALID_ENUM
: GL_INVALID_OPERATION
;
1618 _mesa_error(ctx
, error
,
1619 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1620 dimensions
, format
, type
);
1625 /* make sure internal format and format basically agree */
1626 colorFormat
= _mesa_is_color_format(format
);
1627 indexFormat
= _mesa_is_index_format(format
);
1628 if ((_mesa_is_color_format(internalFormat
) && !colorFormat
&& !indexFormat
) ||
1629 (_mesa_is_index_format(internalFormat
) && !indexFormat
) ||
1630 (_mesa_is_depth_format(internalFormat
) != _mesa_is_depth_format(format
)) ||
1631 (_mesa_is_ycbcr_format(internalFormat
) != _mesa_is_ycbcr_format(format
)) ||
1632 (_mesa_is_depthstencil_format(internalFormat
) != _mesa_is_depthstencil_format(format
)) ||
1633 (_mesa_is_dudv_format(internalFormat
) != _mesa_is_dudv_format(format
))) {
1635 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1636 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1637 dimensions
, internalFormat
, format
);
1641 /* additional checks for ycbcr textures */
1642 if (internalFormat
== GL_YCBCR_MESA
) {
1643 ASSERT(ctx
->Extensions
.MESA_ycbcr_texture
);
1644 if (type
!= GL_UNSIGNED_SHORT_8_8_MESA
&&
1645 type
!= GL_UNSIGNED_SHORT_8_8_REV_MESA
) {
1647 _mesa_snprintf(message
, sizeof(message
),
1648 "glTexImage%dD(format/type YCBCR mismatch", dimensions
);
1649 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", message
);
1650 return GL_TRUE
; /* error */
1652 if (target
!= GL_TEXTURE_2D
&&
1653 target
!= GL_PROXY_TEXTURE_2D
&&
1654 target
!= GL_TEXTURE_RECTANGLE_NV
&&
1655 target
!= GL_PROXY_TEXTURE_RECTANGLE_NV
) {
1657 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexImage(target)");
1663 _mesa_snprintf(message
, sizeof(message
),
1664 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1665 dimensions
, border
);
1666 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", message
);
1672 /* additional checks for depth textures */
1673 if (_mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_COMPONENT
) {
1674 /* Only 1D, 2D and rectangular textures supported, not 3D or cubes */
1675 if (target
!= GL_TEXTURE_1D
&&
1676 target
!= GL_PROXY_TEXTURE_1D
&&
1677 target
!= GL_TEXTURE_2D
&&
1678 target
!= GL_PROXY_TEXTURE_2D
&&
1679 target
!= GL_TEXTURE_RECTANGLE_ARB
&&
1680 target
!= GL_PROXY_TEXTURE_RECTANGLE_ARB
) {
1682 _mesa_error(ctx
, GL_INVALID_ENUM
,
1683 "glTexImage(target/internalFormat)");
1688 /* additional checks for compressed textures */
1689 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
1690 if (!target_can_be_compressed(ctx
, target
) && !isProxy
) {
1691 _mesa_error(ctx
, GL_INVALID_ENUM
,
1692 "glTexImage%dD(target)", dimensions
);
1697 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1698 "glTexImage%dD(border!=0)", dimensions
);
1704 /* additional checks for integer textures */
1705 if (ctx
->Extensions
.EXT_texture_integer
&&
1706 (_mesa_is_integer_format(format
) !=
1707 _mesa_is_integer_format(internalFormat
))) {
1709 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1710 "glTexImage%dD(integer/non-integer format mismatch)",
1716 /* if we get here, the parameters are OK */
1722 * Test glTexSubImage[123]D() parameters for errors.
1724 * \param ctx GL context.
1725 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1726 * \param target texture target given by the user.
1727 * \param level image level given by the user.
1728 * \param xoffset sub-image x offset given by the user.
1729 * \param yoffset sub-image y offset given by the user.
1730 * \param zoffset sub-image z offset given by the user.
1731 * \param format pixel data format given by the user.
1732 * \param type pixel data type given by the user.
1733 * \param width image width given by the user.
1734 * \param height image height given by the user.
1735 * \param depth image depth given by the user.
1737 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1739 * Verifies each of the parameters against the constants specified in
1740 * __struct gl_contextRec::Const and the supported extensions, and according
1741 * to the OpenGL specification.
1744 subtexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
1745 GLenum target
, GLint level
,
1746 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1747 GLint width
, GLint height
, GLint depth
,
1748 GLenum format
, GLenum type
)
1750 /* Basic level check */
1751 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1752 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage2D(level=%d)", level
);
1756 /* Check for negative sizes */
1758 _mesa_error(ctx
, GL_INVALID_VALUE
,
1759 "glTexSubImage%dD(width=%d)", dimensions
, width
);
1762 if (height
< 0 && dimensions
> 1) {
1763 _mesa_error(ctx
, GL_INVALID_VALUE
,
1764 "glTexSubImage%dD(height=%d)", dimensions
, height
);
1767 if (depth
< 0 && dimensions
> 2) {
1768 _mesa_error(ctx
, GL_INVALID_VALUE
,
1769 "glTexSubImage%dD(depth=%d)", dimensions
, depth
);
1773 if (!_mesa_is_legal_format_and_type(ctx
, format
, type
)) {
1774 /* As with the glTexImage2D check above, the error code here
1775 * depends on texture integer.
1777 GLenum error
= _mesa_is_integer_format(format
)
1778 ? GL_INVALID_OPERATION
: GL_INVALID_ENUM
;
1779 _mesa_error(ctx
, error
,
1780 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
1781 dimensions
, format
, type
);
1790 * Do second part of glTexSubImage which depends on the destination texture.
1791 * \return GL_TRUE if error recorded, GL_FALSE otherwise
1794 subtexture_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
1795 GLenum target
, GLint level
,
1796 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1797 GLint width
, GLint height
, GLint depth
,
1798 GLenum format
, GLenum type
,
1799 const struct gl_texture_image
*destTex
)
1802 /* undefined image level */
1803 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexSubImage%dD", dimensions
);
1807 if (xoffset
< -((GLint
)destTex
->Border
)) {
1808 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset)",
1812 if (xoffset
+ width
> (GLint
) (destTex
->Width
+ destTex
->Border
)) {
1813 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset+width)",
1817 if (dimensions
> 1) {
1818 if (yoffset
< -((GLint
)destTex
->Border
)) {
1819 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset)",
1823 if (yoffset
+ height
> (GLint
) (destTex
->Height
+ destTex
->Border
)) {
1824 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset+height)",
1829 if (dimensions
> 2) {
1830 if (zoffset
< -((GLint
)destTex
->Border
)) {
1831 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset)");
1834 if (zoffset
+ depth
> (GLint
) (destTex
->Depth
+ destTex
->Border
)) {
1835 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset+depth)");
1840 if (_mesa_is_format_compressed(destTex
->TexFormat
)) {
1843 if (!target_can_be_compressed(ctx
, target
)) {
1844 _mesa_error(ctx
, GL_INVALID_ENUM
,
1845 "glTexSubImage%dD(target=%s)", dimensions
,
1846 _mesa_lookup_enum_by_nr(target
));
1850 /* do tests which depend on compression block size */
1851 _mesa_get_format_block_size(destTex
->TexFormat
, &bw
, &bh
);
1853 /* offset must be multiple of block size */
1854 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0)) {
1855 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1856 "glTexSubImage%dD(xoffset = %d, yoffset = %d)",
1857 dimensions
, xoffset
, yoffset
);
1860 /* size must be multiple of bw by bh or equal to whole texture size */
1861 if ((width
% bw
!= 0) && (GLuint
) width
!= destTex
->Width
) {
1862 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1863 "glTexSubImage%dD(width = %d)", dimensions
, width
);
1866 if ((height
% bh
!= 0) && (GLuint
) height
!= destTex
->Height
) {
1867 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1868 "glTexSubImage%dD(height = %d)", dimensions
, height
);
1878 * Test glCopyTexImage[12]D() parameters for errors.
1880 * \param ctx GL context.
1881 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1882 * \param target texture target given by the user.
1883 * \param level image level given by the user.
1884 * \param internalFormat internal format given by the user.
1885 * \param width image width given by the user.
1886 * \param height image height given by the user.
1887 * \param border texture border.
1889 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1891 * Verifies each of the parameters against the constants specified in
1892 * __struct gl_contextRec::Const and the supported extensions, and according
1893 * to the OpenGL specification.
1896 copytexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
1897 GLenum target
, GLint level
, GLint internalFormat
,
1898 GLint width
, GLint height
, GLint border
)
1900 const GLenum proxyTarget
= get_proxy_target(target
);
1901 const GLenum type
= GL_FLOAT
;
1906 if (!legal_copyteximage_target(ctx
, dimensions
, target
)) {
1907 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexImage%uD(target=%s)",
1908 dimensions
, _mesa_lookup_enum_by_nr(target
));
1912 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1913 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1914 _mesa_error(ctx
, GL_INVALID_VALUE
,
1915 "glCopyTexImage%dD(level=%d)", dimensions
, level
);
1919 /* Check that the source buffer is complete */
1920 if (ctx
->ReadBuffer
->Name
) {
1921 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
1922 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1923 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
1924 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
1930 if (border
< 0 || border
> 1 ||
1931 ((target
== GL_TEXTURE_RECTANGLE_NV
||
1932 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1936 format
= _mesa_base_tex_format(ctx
, internalFormat
);
1938 _mesa_error(ctx
, GL_INVALID_VALUE
,
1939 "glCopyTexImage%dD(internalFormat)", dimensions
);
1943 if (!_mesa_source_buffer_exists(ctx
, format
)) {
1944 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1945 "glCopyTexImage%dD(missing readbuffer)", dimensions
);
1949 /* Do size, level checking */
1950 sizeOK
= (proxyTarget
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
)
1951 ? (width
== height
) : 1;
1953 sizeOK
= sizeOK
&& ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
1954 internalFormat
, format
,
1955 type
, width
, height
,
1959 if (dimensions
== 1) {
1960 _mesa_error(ctx
, GL_INVALID_VALUE
,
1961 "glCopyTexImage1D(width=%d)", width
);
1964 ASSERT(dimensions
== 2);
1965 _mesa_error(ctx
, GL_INVALID_VALUE
,
1966 "glCopyTexImage2D(width=%d, height=%d)", width
, height
);
1971 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
1972 if (!target_can_be_compressed(ctx
, target
)) {
1973 _mesa_error(ctx
, GL_INVALID_ENUM
,
1974 "glCopyTexImage%dD(target)", dimensions
);
1978 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1979 "glCopyTexImage%dD(border!=0)", dimensions
);
1983 else if (_mesa_is_depth_format(internalFormat
)) {
1984 /* make sure we have depth/stencil buffers */
1985 if (!ctx
->ReadBuffer
->_DepthBuffer
) {
1986 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1987 "glCopyTexImage%dD(no depth)", dimensions
);
1991 else if (_mesa_is_depthstencil_format(internalFormat
)) {
1992 /* make sure we have depth/stencil buffers */
1993 if (!ctx
->ReadBuffer
->_DepthBuffer
|| !ctx
->ReadBuffer
->_StencilBuffer
) {
1994 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1995 "glCopyTexImage%dD(no depth/stencil buffer)", dimensions
);
2000 /* if we get here, the parameters are OK */
2006 * Test glCopyTexSubImage[12]D() parameters for errors.
2007 * Note that this is the first part of error checking.
2008 * See also copytexsubimage_error_check2() below for the second part.
2010 * \param ctx GL context.
2011 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2012 * \param target texture target given by the user.
2013 * \param level image level given by the user.
2015 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2018 copytexsubimage_error_check1( struct gl_context
*ctx
, GLuint dimensions
,
2019 GLenum target
, GLint level
)
2021 /* Check that the source buffer is complete */
2022 if (ctx
->ReadBuffer
->Name
) {
2023 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2024 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2025 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2026 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2031 /* check target (proxies not allowed) */
2032 if (!legal_teximage_target(ctx
, dimensions
, target
) ||
2033 _mesa_is_proxy_texture(target
)) {
2034 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexSubImage%uD(target=%s)",
2035 dimensions
, _mesa_lookup_enum_by_nr(target
));
2040 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
2041 _mesa_error(ctx
, GL_INVALID_VALUE
,
2042 "glCopyTexSubImage%dD(level=%d)", dimensions
, level
);
2051 * Second part of error checking for glCopyTexSubImage[12]D().
2052 * \param xoffset sub-image x offset given by the user.
2053 * \param yoffset sub-image y offset given by the user.
2054 * \param zoffset sub-image z offset given by the user.
2055 * \param width image width given by the user.
2056 * \param height image height given by the user.
2059 copytexsubimage_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
2060 GLenum target
, GLint level
,
2061 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2062 GLsizei width
, GLsizei height
,
2063 const struct gl_texture_image
*teximage
)
2065 /* check that dest tex image exists */
2067 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2068 "glCopyTexSubImage%dD(undefined texture level: %d)",
2075 _mesa_error(ctx
, GL_INVALID_VALUE
,
2076 "glCopyTexSubImage%dD(width=%d)", dimensions
, width
);
2079 if (dimensions
> 1 && height
< 0) {
2080 _mesa_error(ctx
, GL_INVALID_VALUE
,
2081 "glCopyTexSubImage%dD(height=%d)", dimensions
, height
);
2085 /* check x/y offsets */
2086 if (xoffset
< -((GLint
)teximage
->Border
)) {
2087 _mesa_error(ctx
, GL_INVALID_VALUE
,
2088 "glCopyTexSubImage%dD(xoffset=%d)", dimensions
, xoffset
);
2091 if (xoffset
+ width
> (GLint
) (teximage
->Width
+ teximage
->Border
)) {
2092 _mesa_error(ctx
, GL_INVALID_VALUE
,
2093 "glCopyTexSubImage%dD(xoffset+width)", dimensions
);
2096 if (dimensions
> 1) {
2097 if (yoffset
< -((GLint
)teximage
->Border
)) {
2098 _mesa_error(ctx
, GL_INVALID_VALUE
,
2099 "glCopyTexSubImage%dD(yoffset=%d)", dimensions
, yoffset
);
2102 /* NOTE: we're adding the border here, not subtracting! */
2103 if (yoffset
+ height
> (GLint
) (teximage
->Height
+ teximage
->Border
)) {
2104 _mesa_error(ctx
, GL_INVALID_VALUE
,
2105 "glCopyTexSubImage%dD(yoffset+height)", dimensions
);
2110 /* check z offset */
2111 if (dimensions
> 2) {
2112 if (zoffset
< -((GLint
)teximage
->Border
)) {
2113 _mesa_error(ctx
, GL_INVALID_VALUE
,
2114 "glCopyTexSubImage%dD(zoffset)", dimensions
);
2117 if (zoffset
> (GLint
) (teximage
->Depth
+ teximage
->Border
)) {
2118 _mesa_error(ctx
, GL_INVALID_VALUE
,
2119 "glCopyTexSubImage%dD(zoffset+depth)", dimensions
);
2124 if (_mesa_is_format_compressed(teximage
->TexFormat
)) {
2125 if (!target_can_be_compressed(ctx
, target
)) {
2126 _mesa_error(ctx
, GL_INVALID_ENUM
,
2127 "glCopyTexSubImage%dD(target)", dimensions
);
2130 /* offset must be multiple of 4 */
2131 if ((xoffset
& 3) || (yoffset
& 3)) {
2132 _mesa_error(ctx
, GL_INVALID_VALUE
,
2133 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions
);
2136 /* size must be multiple of 4 */
2137 if ((width
& 3) != 0 && (GLuint
) width
!= teximage
->Width
) {
2138 _mesa_error(ctx
, GL_INVALID_VALUE
,
2139 "glCopyTexSubImage%dD(width)", dimensions
);
2142 if ((height
& 3) != 0 && (GLuint
) height
!= teximage
->Height
) {
2143 _mesa_error(ctx
, GL_INVALID_VALUE
,
2144 "glCopyTexSubImage%dD(height)", dimensions
);
2149 if (teximage
->InternalFormat
== GL_YCBCR_MESA
) {
2150 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glCopyTexSubImage2D");
2154 if (!_mesa_source_buffer_exists(ctx
, teximage
->_BaseFormat
)) {
2155 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2156 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2157 dimensions
, teximage
->_BaseFormat
);
2161 if (teximage
->_BaseFormat
== GL_DEPTH_COMPONENT
) {
2162 if (!ctx
->ReadBuffer
->_DepthBuffer
) {
2163 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2164 "glCopyTexSubImage%dD(no depth buffer)",
2169 else if (teximage
->_BaseFormat
== GL_DEPTH_STENCIL_EXT
) {
2170 if (!ctx
->ReadBuffer
->_DepthBuffer
|| !ctx
->ReadBuffer
->_StencilBuffer
) {
2171 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2172 "glCopyTexSubImage%dD(no depth/stencil buffer)",
2178 /* If copying into an integer texture, the source buffer must also be
2181 if (_mesa_is_format_integer_color(teximage
->TexFormat
)) {
2182 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2183 if (!_mesa_is_format_integer_color(rb
->Format
)) {
2184 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2185 "glCopyTexSubImage%dD(source buffer is not integer format)",
2191 /* if we get here, the parameters are OK */
2196 /** Callback info for walking over FBO hash table */
2199 struct gl_context
*ctx
;
2200 struct gl_texture_object
*texObj
;
2206 * Check render to texture callback. Called from _mesa_HashWalk().
2209 check_rtt_cb(GLuint key
, void *data
, void *userData
)
2211 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2212 const struct cb_info
*info
= (struct cb_info
*) userData
;
2213 struct gl_context
*ctx
= info
->ctx
;
2214 const struct gl_texture_object
*texObj
= info
->texObj
;
2215 const GLuint level
= info
->level
, face
= info
->face
;
2217 /* If this is a user-created FBO */
2220 /* check if any of the FBO's attachments point to 'texObj' */
2221 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2222 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2223 if (att
->Type
== GL_TEXTURE
&&
2224 att
->Texture
== texObj
&&
2225 att
->TextureLevel
== level
&&
2226 att
->CubeMapFace
== face
) {
2227 ASSERT(att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
]);
2228 /* Tell driver about the new renderbuffer texture */
2229 ctx
->Driver
.RenderTexture(ctx
, ctx
->DrawBuffer
, att
);
2230 /* Mark fb status as indeterminate to force re-validation */
2239 * When a texture image is specified we have to check if it's bound to
2240 * any framebuffer objects (render to texture) in order to detect changes
2241 * in size or format since that effects FBO completeness.
2242 * Any FBOs rendering into the texture must be re-validated.
2245 update_fbo_texture(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
2246 GLuint face
, GLuint level
)
2248 /* Only check this texture if it's been marked as RenderToTexture */
2249 if (texObj
->_RenderToTexture
) {
2250 struct cb_info info
;
2252 info
.texObj
= texObj
;
2255 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, check_rtt_cb
, &info
);
2261 * If the texture object's GenerateMipmap flag is set and we've
2262 * changed the texture base level image, regenerate the rest of the
2263 * mipmap levels now.
2266 check_gen_mipmap(struct gl_context
*ctx
, GLenum target
,
2267 struct gl_texture_object
*texObj
, GLint level
)
2269 ASSERT(target
!= GL_TEXTURE_CUBE_MAP
);
2270 if (texObj
->GenerateMipmap
&&
2271 level
== texObj
->BaseLevel
&&
2272 level
< texObj
->MaxLevel
) {
2273 ASSERT(ctx
->Driver
.GenerateMipmap
);
2274 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2279 /** Debug helper: override the user-requested internal format */
2281 override_internal_format(GLenum internalFormat
, GLint width
, GLint height
)
2284 if (internalFormat
== GL_RGBA16F_ARB
||
2285 internalFormat
== GL_RGBA32F_ARB
) {
2286 printf("Convert rgba float tex to int %d x %d\n", width
, height
);
2289 else if (internalFormat
== GL_RGB16F_ARB
||
2290 internalFormat
== GL_RGB32F_ARB
) {
2291 printf("Convert rgb float tex to int %d x %d\n", width
, height
);
2294 else if (internalFormat
== GL_LUMINANCE_ALPHA16F_ARB
||
2295 internalFormat
== GL_LUMINANCE_ALPHA32F_ARB
) {
2296 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2297 return GL_LUMINANCE_ALPHA
;
2299 else if (internalFormat
== GL_LUMINANCE16F_ARB
||
2300 internalFormat
== GL_LUMINANCE32F_ARB
) {
2301 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2302 return GL_LUMINANCE
;
2304 else if (internalFormat
== GL_ALPHA16F_ARB
||
2305 internalFormat
== GL_ALPHA32F_ARB
) {
2306 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2310 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2311 internalFormat = GL_RGBA;
2315 return internalFormat
;
2318 return internalFormat
;
2324 * Choose the actual hardware format for a texture image.
2325 * Try to use the same format as the previous image level when possible.
2326 * Otherwise, ask the driver for the best format.
2327 * It's important to try to choose a consistant format for all levels
2328 * for efficient texture memory layout/allocation. In particular, this
2329 * comes up during automatic mipmap generation.
2332 _mesa_choose_texture_format(struct gl_context
*ctx
,
2333 struct gl_texture_object
*texObj
,
2334 GLenum target
, GLint level
,
2335 GLenum internalFormat
, GLenum format
, GLenum type
)
2339 /* see if we've already chosen a format for the previous level */
2341 struct gl_texture_image
*prevImage
=
2342 _mesa_select_tex_image(ctx
, texObj
, target
, level
- 1);
2343 /* See if the prev level is defined and has an internal format which
2344 * matches the new internal format.
2347 prevImage
->Width
> 0 &&
2348 prevImage
->InternalFormat
== internalFormat
) {
2349 /* use the same format */
2350 ASSERT(prevImage
->TexFormat
!= MESA_FORMAT_NONE
);
2351 return prevImage
->TexFormat
;
2355 /* choose format from scratch */
2356 f
= ctx
->Driver
.ChooseTextureFormat(ctx
, internalFormat
, format
, type
);
2357 ASSERT(f
!= MESA_FORMAT_NONE
);
2363 * Common code to implement all the glTexImage1D/2D/3D functions.
2366 teximage(struct gl_context
*ctx
, GLuint dims
,
2367 GLenum target
, GLint level
, GLint internalFormat
,
2368 GLsizei width
, GLsizei height
, GLsizei depth
,
2369 GLint border
, GLenum format
, GLenum type
,
2370 const GLvoid
*pixels
)
2374 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2376 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2377 _mesa_debug(ctx
, "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2379 _mesa_lookup_enum_by_nr(target
), level
,
2380 _mesa_lookup_enum_by_nr(internalFormat
),
2381 width
, height
, depth
, border
,
2382 _mesa_lookup_enum_by_nr(format
),
2383 _mesa_lookup_enum_by_nr(type
), pixels
);
2385 internalFormat
= override_internal_format(internalFormat
, width
, height
);
2387 /* target error checking */
2388 if (!legal_teximage_target(ctx
, dims
, target
)) {
2389 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexImage%uD(target=%s)",
2390 dims
, _mesa_lookup_enum_by_nr(target
));
2394 /* general error checking */
2395 error
= texture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2396 format
, type
, width
, height
, depth
, border
);
2398 if (_mesa_is_proxy_texture(target
)) {
2399 /* Proxy texture: just clear or set state depending on error checking */
2400 struct gl_texture_image
*texImage
=
2401 _mesa_get_proxy_tex_image(ctx
, target
, level
);
2404 /* when error, clear all proxy texture image parameters */
2406 clear_teximage_fields(texImage
);
2409 /* no error, set the tex image parameters */
2410 struct gl_texture_object
*texObj
=
2411 _mesa_get_current_tex_object(ctx
, target
);
2412 gl_format texFormat
= _mesa_choose_texture_format(ctx
, texObj
,
2417 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
2418 _mesa_init_teximage_fields(ctx
, target
, texImage
, width
, height
,
2419 depth
, border
, internalFormat
,
2422 else if (texImage
) {
2423 clear_teximage_fields(texImage
);
2428 /* non-proxy target */
2429 const GLuint face
= _mesa_tex_target_to_face(target
);
2430 struct gl_texture_object
*texObj
;
2431 struct gl_texture_image
*texImage
;
2434 return; /* error was recorded */
2437 if (ctx
->NewState
& _MESA_NEW_TRANSFER_STATE
)
2438 _mesa_update_state(ctx
);
2440 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2442 _mesa_lock_texture(ctx
, texObj
);
2444 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
2447 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
2450 gl_format texFormat
;
2452 if (texImage
->Data
) {
2453 ctx
->Driver
.FreeTexImageData( ctx
, texImage
);
2456 ASSERT(texImage
->Data
== NULL
);
2457 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
2458 internalFormat
, format
,
2461 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
2462 _mesa_init_teximage_fields(ctx
, target
, texImage
,
2463 width
, height
, depth
,
2464 border
, internalFormat
, texFormat
);
2466 /* Give the texture to the driver. <pixels> may be null. */
2467 ASSERT(ctx
->Driver
.TexImage3D
);
2470 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
2471 width
, border
, format
,
2472 type
, pixels
, &ctx
->Unpack
, texObj
,
2476 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
2477 width
, height
, border
, format
,
2478 type
, pixels
, &ctx
->Unpack
, texObj
,
2482 ctx
->Driver
.TexImage3D(ctx
, target
, level
, internalFormat
,
2483 width
, height
, depth
, border
, format
,
2484 type
, pixels
, &ctx
->Unpack
, texObj
,
2488 _mesa_problem(ctx
, "invalid dims=%u in teximage()", dims
);
2491 check_gen_mipmap(ctx
, target
, texObj
, level
);
2493 update_fbo_texture(ctx
, texObj
, face
, level
);
2496 texObj
->_Complete
= GL_FALSE
;
2497 ctx
->NewState
|= _NEW_TEXTURE
;
2500 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
2504 _mesa_unlock_texture(ctx
, texObj
);
2510 * Called from the API. Note that width includes the border.
2513 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalFormat
,
2514 GLsizei width
, GLint border
, GLenum format
,
2515 GLenum type
, const GLvoid
*pixels
)
2517 GET_CURRENT_CONTEXT(ctx
);
2518 teximage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1,
2519 border
, format
, type
, pixels
);
2524 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalFormat
,
2525 GLsizei width
, GLsizei height
, GLint border
,
2526 GLenum format
, GLenum type
,
2527 const GLvoid
*pixels
)
2529 GET_CURRENT_CONTEXT(ctx
);
2530 teximage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1,
2531 border
, format
, type
, pixels
);
2536 * Called by the API or display list executor.
2537 * Note that width and height include the border.
2540 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalFormat
,
2541 GLsizei width
, GLsizei height
, GLsizei depth
,
2542 GLint border
, GLenum format
, GLenum type
,
2543 const GLvoid
*pixels
)
2545 GET_CURRENT_CONTEXT(ctx
);
2546 teximage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
2547 border
, format
, type
, pixels
);
2552 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalFormat
,
2553 GLsizei width
, GLsizei height
, GLsizei depth
,
2554 GLint border
, GLenum format
, GLenum type
,
2555 const GLvoid
*pixels
)
2557 _mesa_TexImage3D(target
, level
, (GLint
) internalFormat
, width
, height
,
2558 depth
, border
, format
, type
, pixels
);
2562 #if FEATURE_OES_EGL_image
2564 _mesa_EGLImageTargetTexture2DOES (GLenum target
, GLeglImageOES image
)
2566 struct gl_texture_object
*texObj
;
2567 struct gl_texture_image
*texImage
;
2568 GET_CURRENT_CONTEXT(ctx
);
2569 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2571 if (!ctx
->Extensions
.OES_EGL_image
) {
2572 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2573 "glEGLImageTargetTexture2DOES(unsupported)");
2577 if (target
!= GL_TEXTURE_2D
) {
2578 _mesa_error(ctx
, GL_INVALID_ENUM
,
2579 "glEGLImageTargetTexture2D(target=%d)", target
);
2583 if (ctx
->NewState
& _MESA_NEW_TRANSFER_STATE
)
2584 _mesa_update_state(ctx
);
2586 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2587 _mesa_lock_texture(ctx
, texObj
);
2589 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
2591 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glEGLImageTargetTexture2D");
2594 ctx
->Driver
.FreeTexImageData( ctx
, texImage
);
2596 ASSERT(texImage
->Data
== NULL
);
2597 ctx
->Driver
.EGLImageTargetTexture2D(ctx
, target
,
2598 texObj
, texImage
, image
);
2601 texObj
->_Complete
= GL_FALSE
;
2602 ctx
->NewState
|= _NEW_TEXTURE
;
2604 _mesa_unlock_texture(ctx
, texObj
);
2612 * Implement all the glTexSubImage1/2/3D() functions.
2615 texsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
2616 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2617 GLsizei width
, GLsizei height
, GLsizei depth
,
2618 GLenum format
, GLenum type
, const GLvoid
*pixels
)
2620 struct gl_texture_object
*texObj
;
2621 struct gl_texture_image
*texImage
;
2623 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2625 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2626 _mesa_debug(ctx
, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
2628 _mesa_lookup_enum_by_nr(target
), level
,
2629 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
2630 _mesa_lookup_enum_by_nr(format
),
2631 _mesa_lookup_enum_by_nr(type
), pixels
);
2633 /* check target (proxies not allowed) */
2634 if (!legal_teximage_target(ctx
, dims
, target
) ||
2635 _mesa_is_proxy_texture(target
)) {
2636 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
2637 dims
, _mesa_lookup_enum_by_nr(target
));
2641 if (ctx
->NewState
& _MESA_NEW_TRANSFER_STATE
)
2642 _mesa_update_state(ctx
);
2644 if (subtexture_error_check(ctx
, dims
, target
, level
, xoffset
, yoffset
, zoffset
,
2645 width
, height
, depth
, format
, type
)) {
2646 return; /* error was detected */
2649 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2651 _mesa_lock_texture(ctx
, texObj
);
2653 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2655 if (subtexture_error_check2(ctx
, dims
, target
, level
,
2656 xoffset
, yoffset
, zoffset
,
2657 width
, height
, depth
,
2658 format
, type
, texImage
)) {
2659 /* error was recorded */
2661 else if (width
> 0 && height
> 0 && height
> 0) {
2662 /* If we have a border, offset=-1 is legal. Bias by border width. */
2665 zoffset
+= texImage
->Border
;
2668 yoffset
+= texImage
->Border
;
2671 xoffset
+= texImage
->Border
;
2676 ctx
->Driver
.TexSubImage1D(ctx
, target
, level
,
2678 format
, type
, pixels
,
2679 &ctx
->Unpack
, texObj
, texImage
);
2682 ctx
->Driver
.TexSubImage2D(ctx
, target
, level
,
2683 xoffset
, yoffset
, width
, height
,
2684 format
, type
, pixels
,
2685 &ctx
->Unpack
, texObj
, texImage
);
2688 ctx
->Driver
.TexSubImage3D(ctx
, target
, level
,
2689 xoffset
, yoffset
, zoffset
,
2690 width
, height
, depth
,
2691 format
, type
, pixels
,
2692 &ctx
->Unpack
, texObj
, texImage
);
2695 _mesa_problem(ctx
, "unexpected dims in subteximage()");
2698 check_gen_mipmap(ctx
, target
, texObj
, level
);
2700 ctx
->NewState
|= _NEW_TEXTURE
;
2703 _mesa_unlock_texture(ctx
, texObj
);
2708 _mesa_TexSubImage1D( GLenum target
, GLint level
,
2709 GLint xoffset
, GLsizei width
,
2710 GLenum format
, GLenum type
,
2711 const GLvoid
*pixels
)
2713 GET_CURRENT_CONTEXT(ctx
);
2714 texsubimage(ctx
, 1, target
, level
,
2717 format
, type
, pixels
);
2722 _mesa_TexSubImage2D( GLenum target
, GLint level
,
2723 GLint xoffset
, GLint yoffset
,
2724 GLsizei width
, GLsizei height
,
2725 GLenum format
, GLenum type
,
2726 const GLvoid
*pixels
)
2728 GET_CURRENT_CONTEXT(ctx
);
2729 texsubimage(ctx
, 2, target
, level
,
2730 xoffset
, yoffset
, 0,
2732 format
, type
, pixels
);
2738 _mesa_TexSubImage3D( GLenum target
, GLint level
,
2739 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2740 GLsizei width
, GLsizei height
, GLsizei depth
,
2741 GLenum format
, GLenum type
,
2742 const GLvoid
*pixels
)
2744 GET_CURRENT_CONTEXT(ctx
);
2745 texsubimage(ctx
, 3, target
, level
,
2746 xoffset
, yoffset
, zoffset
,
2747 width
, height
, depth
,
2748 format
, type
, pixels
);
2754 * Implement the glCopyTexImage1/2D() functions.
2757 copyteximage(struct gl_context
*ctx
, GLuint dims
,
2758 GLenum target
, GLint level
, GLenum internalFormat
,
2759 GLint x
, GLint y
, GLsizei width
, GLsizei height
, GLint border
)
2761 struct gl_texture_object
*texObj
;
2762 struct gl_texture_image
*texImage
;
2763 const GLuint face
= _mesa_tex_target_to_face(target
);
2765 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2767 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2768 _mesa_debug(ctx
, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
2770 _mesa_lookup_enum_by_nr(target
), level
,
2771 _mesa_lookup_enum_by_nr(internalFormat
),
2772 x
, y
, width
, height
, border
);
2774 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
2775 _mesa_update_state(ctx
);
2777 if (copytexture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2778 width
, height
, border
))
2781 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2783 _mesa_lock_texture(ctx
, texObj
);
2785 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
2788 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
2791 gl_format texFormat
;
2793 if (texImage
->Data
) {
2794 ctx
->Driver
.FreeTexImageData( ctx
, texImage
);
2797 ASSERT(texImage
->Data
== NULL
);
2799 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
2800 internalFormat
, GL_NONE
,
2803 if (legal_texture_size(ctx
, texFormat
, width
, height
, 1)) {
2804 _mesa_init_teximage_fields(ctx
, target
, texImage
, width
, height
, 1,
2805 border
, internalFormat
, texFormat
);
2807 ASSERT(ctx
->Driver
.CopyTexImage2D
);
2809 ctx
->Driver
.CopyTexImage1D(ctx
, target
, level
, internalFormat
,
2810 x
, y
, width
, border
);
2812 ctx
->Driver
.CopyTexImage2D(ctx
, target
, level
, internalFormat
,
2813 x
, y
, width
, height
, border
);
2815 check_gen_mipmap(ctx
, target
, texObj
, level
);
2817 update_fbo_texture(ctx
, texObj
, face
, level
);
2820 texObj
->_Complete
= GL_FALSE
;
2821 ctx
->NewState
|= _NEW_TEXTURE
;
2824 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
2828 _mesa_unlock_texture(ctx
, texObj
);
2834 _mesa_CopyTexImage1D( GLenum target
, GLint level
,
2835 GLenum internalFormat
,
2837 GLsizei width
, GLint border
)
2839 GET_CURRENT_CONTEXT(ctx
);
2840 copyteximage(ctx
, 1, target
, level
, internalFormat
, x
, y
, width
, 1, border
);
2846 _mesa_CopyTexImage2D( GLenum target
, GLint level
, GLenum internalFormat
,
2847 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
2850 GET_CURRENT_CONTEXT(ctx
);
2851 copyteximage(ctx
, 2, target
, level
, internalFormat
,
2852 x
, y
, width
, height
, border
);
2858 * Implementation for glCopyTexSubImage1/2/3D() functions.
2861 copytexsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
2862 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2863 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
2865 struct gl_texture_object
*texObj
;
2866 struct gl_texture_image
*texImage
;
2868 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2870 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2871 _mesa_debug(ctx
, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
2873 _mesa_lookup_enum_by_nr(target
),
2874 level
, xoffset
, yoffset
, zoffset
, x
, y
, width
, height
);
2876 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
2877 _mesa_update_state(ctx
);
2879 if (copytexsubimage_error_check1(ctx
, dims
, target
, level
))
2882 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2884 _mesa_lock_texture(ctx
, texObj
);
2886 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2888 if (copytexsubimage_error_check2(ctx
, dims
, target
, level
, xoffset
, yoffset
,
2889 zoffset
, width
, height
, texImage
)) {
2890 /* error was recored */
2893 /* If we have a border, offset=-1 is legal. Bias by border width. */
2896 zoffset
+= texImage
->Border
;
2899 yoffset
+= texImage
->Border
;
2902 xoffset
+= texImage
->Border
;
2905 if (_mesa_clip_copytexsubimage(ctx
, &xoffset
, &yoffset
, &x
, &y
,
2909 ctx
->Driver
.CopyTexSubImage1D(ctx
, target
, level
,
2910 xoffset
, x
, y
, width
);
2913 ctx
->Driver
.CopyTexSubImage2D(ctx
, target
, level
,
2915 x
, y
, width
, height
);
2918 ctx
->Driver
.CopyTexSubImage3D(ctx
, target
, level
,
2919 xoffset
, yoffset
, zoffset
,
2920 x
, y
, width
, height
);
2923 _mesa_problem(ctx
, "bad dims in copytexsubimage()");
2926 check_gen_mipmap(ctx
, target
, texObj
, level
);
2928 ctx
->NewState
|= _NEW_TEXTURE
;
2932 _mesa_unlock_texture(ctx
, texObj
);
2937 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
,
2938 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
2940 GET_CURRENT_CONTEXT(ctx
);
2941 copytexsubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, x
, y
, width
, 1);
2947 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
2948 GLint xoffset
, GLint yoffset
,
2949 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
2951 GET_CURRENT_CONTEXT(ctx
);
2952 copytexsubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0, x
, y
,
2959 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
2960 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2961 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
2963 GET_CURRENT_CONTEXT(ctx
);
2964 copytexsubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
2965 x
, y
, width
, height
);
2971 /**********************************************************************/
2972 /****** Compressed Textures ******/
2973 /**********************************************************************/
2977 * Return expected size of a compressed texture.
2980 compressed_tex_size(GLsizei width
, GLsizei height
, GLsizei depth
,
2983 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
2984 return _mesa_format_image_size(mesaFormat
, width
, height
, depth
);
2989 * Return compressed texture block size, in pixels.
2992 get_compressed_block_size(GLenum glformat
, GLuint
*bw
, GLuint
*bh
)
2994 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
2995 _mesa_get_format_block_size(mesaFormat
, bw
, bh
);
3000 * Error checking for glCompressedTexImage[123]D().
3001 * \return error code or GL_NO_ERROR.
3004 compressed_texture_error_check(struct gl_context
*ctx
, GLint dimensions
,
3005 GLenum target
, GLint level
,
3006 GLenum internalFormat
, GLsizei width
,
3007 GLsizei height
, GLsizei depth
, GLint border
,
3010 const GLenum proxyTarget
= get_proxy_target(target
);
3011 const GLint maxLevels
= _mesa_max_texture_levels(ctx
, target
);
3015 if (level
< 0 || level
>= maxLevels
)
3016 return GL_INVALID_VALUE
;
3018 /* This will detect any invalid internalFormat value */
3019 if (!_mesa_is_compressed_format(ctx
, internalFormat
))
3020 return GL_INVALID_ENUM
;
3022 /* This should really never fail */
3023 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0)
3024 return GL_INVALID_ENUM
;
3026 /* No compressed formats support borders at this time */
3028 return GL_INVALID_VALUE
;
3030 /* For cube map, width must equal height */
3031 if (target
>= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
&&
3032 target
<= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
&& width
!= height
)
3033 return GL_INVALID_VALUE
;
3035 /* check image sizes */
3036 if (!ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
3037 internalFormat
, GL_NONE
, GL_NONE
,
3038 width
, height
, depth
, border
)) {
3039 return GL_INVALID_VALUE
;
3042 /* check image size in bytes */
3043 expectedSize
= compressed_tex_size(width
, height
, depth
, internalFormat
);
3044 if (expectedSize
!= imageSize
)
3045 return GL_INVALID_VALUE
;
3052 * Error checking for glCompressedTexSubImage[123]D().
3053 * \warning There are some bad assumptions here about the size of compressed
3054 * texture tiles (multiple of 4) used to test the validity of the
3055 * offset and size parameters.
3056 * \return error code or GL_NO_ERROR.
3059 compressed_subtexture_error_check(struct gl_context
*ctx
, GLint dimensions
,
3060 GLenum target
, GLint level
,
3061 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3062 GLsizei width
, GLsizei height
, GLsizei depth
,
3063 GLenum format
, GLsizei imageSize
)
3065 GLint expectedSize
, maxLevels
= 0, maxTextureSize
;
3069 if (dimensions
== 1) {
3070 /* 1D compressed textures not allowed */
3071 return GL_INVALID_ENUM
;
3073 else if (dimensions
== 2) {
3074 if (target
== GL_PROXY_TEXTURE_2D
) {
3075 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3077 else if (target
== GL_TEXTURE_2D
) {
3078 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3080 else if (target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
) {
3081 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3082 return GL_INVALID_ENUM
; /*target*/
3083 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3085 else if (target
>= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
&&
3086 target
<= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
) {
3087 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3088 return GL_INVALID_ENUM
; /*target*/
3089 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3092 return GL_INVALID_ENUM
; /*target*/
3095 else if (dimensions
== 3) {
3096 /* 3D compressed textures not allowed */
3097 return GL_INVALID_ENUM
;
3100 maxTextureSize
= 1 << (maxLevels
- 1);
3102 /* this will catch any invalid compressed format token */
3103 if (!_mesa_is_compressed_format(ctx
, format
))
3104 return GL_INVALID_ENUM
;
3106 if (width
< 1 || width
> maxTextureSize
)
3107 return GL_INVALID_VALUE
;
3109 if ((height
< 1 || height
> maxTextureSize
)
3111 return GL_INVALID_VALUE
;
3113 if (level
< 0 || level
>= maxLevels
)
3114 return GL_INVALID_VALUE
;
3117 * do checks which depend on compression block size
3119 get_compressed_block_size(format
, &bw
, &bh
);
3121 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0))
3122 return GL_INVALID_VALUE
;
3124 if ((width
% bw
!= 0) && width
!= 2 && width
!= 1)
3125 return GL_INVALID_VALUE
;
3127 if ((height
% bh
!= 0) && height
!= 2 && height
!= 1)
3128 return GL_INVALID_VALUE
;
3130 expectedSize
= compressed_tex_size(width
, height
, depth
, format
);
3131 if (expectedSize
!= imageSize
)
3132 return GL_INVALID_VALUE
;
3139 * Do second part of glCompressedTexSubImage error checking.
3140 * \return GL_TRUE if error found, GL_FALSE otherwise.
3143 compressed_subtexture_error_check2(struct gl_context
*ctx
, GLuint dims
,
3144 GLsizei width
, GLsizei height
,
3145 GLsizei depth
, GLenum format
,
3146 struct gl_texture_image
*texImage
)
3149 if ((GLint
) format
!= texImage
->InternalFormat
) {
3150 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3151 "glCompressedTexSubImage%uD(format=0x%x)", dims
, format
);
3155 if (((width
== 1 || width
== 2) &&
3156 width
!= (GLsizei
) texImage
->Width
) ||
3157 (width
> (GLsizei
) texImage
->Width
)) {
3158 _mesa_error(ctx
, GL_INVALID_VALUE
,
3159 "glCompressedTexSubImage%uD(width=%d)", dims
, width
);
3164 if (((height
== 1 || height
== 2) &&
3165 height
!= (GLsizei
) texImage
->Height
) ||
3166 (height
> (GLsizei
) texImage
->Height
)) {
3167 _mesa_error(ctx
, GL_INVALID_VALUE
,
3168 "glCompressedTexSubImage%uD(height=%d)", dims
, height
);
3174 if (((depth
== 1 || depth
== 2) &&
3175 depth
!= (GLsizei
) texImage
->Depth
) ||
3176 (depth
> (GLsizei
) texImage
->Depth
)) {
3177 _mesa_error(ctx
, GL_INVALID_VALUE
,
3178 "glCompressedTexSubImage%uD(depth=%d)", dims
, depth
);
3188 * Implementation of the glCompressedTexImage1/2/3D() functions.
3191 compressedteximage(struct gl_context
*ctx
, GLuint dims
,
3192 GLenum target
, GLint level
,
3193 GLenum internalFormat
, GLsizei width
,
3194 GLsizei height
, GLsizei depth
, GLint border
,
3195 GLsizei imageSize
, const GLvoid
*data
)
3199 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3201 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3203 "glCompressedTexImage%uDARB %s %d %s %d %d %d %d %d %p\n",
3205 _mesa_lookup_enum_by_nr(target
), level
,
3206 _mesa_lookup_enum_by_nr(internalFormat
),
3207 width
, height
, depth
, border
, imageSize
, data
);
3210 if (!legal_compressed_teximage_target(ctx
, dims
, target
)) {
3211 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCompressedTexImage%uD(target=%s)",
3212 dims
, _mesa_lookup_enum_by_nr(target
));
3216 error
= compressed_texture_error_check(ctx
, dims
, target
, level
,
3217 internalFormat
, width
, height
, depth
,
3221 /* XXX this is kind of a hack */
3223 _mesa_error(ctx
, error
, "glTexImage2D");
3228 switch (internalFormat
) {
3229 case GL_PALETTE4_RGB8_OES
:
3230 case GL_PALETTE4_RGBA8_OES
:
3231 case GL_PALETTE4_R5_G6_B5_OES
:
3232 case GL_PALETTE4_RGBA4_OES
:
3233 case GL_PALETTE4_RGB5_A1_OES
:
3234 case GL_PALETTE8_RGB8_OES
:
3235 case GL_PALETTE8_RGBA8_OES
:
3236 case GL_PALETTE8_R5_G6_B5_OES
:
3237 case GL_PALETTE8_RGBA4_OES
:
3238 case GL_PALETTE8_RGB5_A1_OES
:
3239 _mesa_cpal_compressed_teximage2d(target
, level
, internalFormat
,
3240 width
, height
, imageSize
, data
);
3246 if (_mesa_is_proxy_texture(target
)) {
3247 /* Proxy texture: just check for errors and update proxy state */
3248 struct gl_texture_image
*texImage
;
3251 struct gl_texture_object
*texObj
=
3252 _mesa_get_current_tex_object(ctx
, target
);
3253 gl_format texFormat
=
3254 _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3255 internalFormat
, GL_NONE
, GL_NONE
);
3256 if (!legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
3257 error
= GL_OUT_OF_MEMORY
;
3261 texImage
= _mesa_get_proxy_tex_image(ctx
, target
, level
);
3264 /* if error, clear all proxy texture image parameters */
3265 clear_teximage_fields(texImage
);
3268 /* no error: store the teximage parameters */
3269 _mesa_init_teximage_fields(ctx
, target
, texImage
, width
, height
,
3270 depth
, border
, internalFormat
,
3276 /* non-proxy target */
3277 struct gl_texture_object
*texObj
;
3278 struct gl_texture_image
*texImage
;
3281 _mesa_error(ctx
, error
, "glCompressedTexImage%uD", dims
);
3285 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3287 _mesa_lock_texture(ctx
, texObj
);
3289 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3291 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3292 "glCompressedTexImage%uD", dims
);
3295 gl_format texFormat
;
3297 if (texImage
->Data
) {
3298 ctx
->Driver
.FreeTexImageData( ctx
, texImage
);
3300 ASSERT(texImage
->Data
== NULL
);
3302 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3303 internalFormat
, GL_NONE
,
3306 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
3307 _mesa_init_teximage_fields(ctx
, target
, texImage
,
3308 width
, height
, depth
,
3309 border
, internalFormat
, texFormat
);
3313 ASSERT(ctx
->Driver
.CompressedTexImage1D
);
3314 ctx
->Driver
.CompressedTexImage1D(ctx
, target
, level
,
3317 border
, imageSize
, data
,
3321 ASSERT(ctx
->Driver
.CompressedTexImage2D
);
3322 ctx
->Driver
.CompressedTexImage2D(ctx
, target
, level
,
3325 border
, imageSize
, data
,
3329 ASSERT(ctx
->Driver
.CompressedTexImage3D
);
3330 ctx
->Driver
.CompressedTexImage3D(ctx
, target
, level
,
3332 width
, height
, depth
,
3333 border
, imageSize
, data
,
3337 _mesa_problem(ctx
, "bad dims in compressedteximage");
3340 check_gen_mipmap(ctx
, target
, texObj
, level
);
3343 texObj
->_Complete
= GL_FALSE
;
3344 ctx
->NewState
|= _NEW_TEXTURE
;
3347 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3348 "glCompressedTexImage%uD", dims
);
3352 _mesa_unlock_texture(ctx
, texObj
);
3358 _mesa_CompressedTexImage1DARB(GLenum target
, GLint level
,
3359 GLenum internalFormat
, GLsizei width
,
3360 GLint border
, GLsizei imageSize
,
3363 GET_CURRENT_CONTEXT(ctx
);
3364 compressedteximage(ctx
, 1, target
, level
, internalFormat
,
3365 width
, 1, 1, border
, imageSize
, data
);
3370 _mesa_CompressedTexImage2DARB(GLenum target
, GLint level
,
3371 GLenum internalFormat
, GLsizei width
,
3372 GLsizei height
, GLint border
, GLsizei imageSize
,
3375 GET_CURRENT_CONTEXT(ctx
);
3376 compressedteximage(ctx
, 2, target
, level
, internalFormat
,
3377 width
, height
, 1, border
, imageSize
, data
);
3382 _mesa_CompressedTexImage3DARB(GLenum target
, GLint level
,
3383 GLenum internalFormat
, GLsizei width
,
3384 GLsizei height
, GLsizei depth
, GLint border
,
3385 GLsizei imageSize
, const GLvoid
*data
)
3387 GET_CURRENT_CONTEXT(ctx
);
3388 compressedteximage(ctx
, 3, target
, level
, internalFormat
,
3389 width
, height
, depth
, border
, imageSize
, data
);
3394 * Common helper for glCompressedTexSubImage1/2/3D().
3397 compressed_tex_sub_image(GLuint dims
, GLenum target
, GLint level
,
3398 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3399 GLsizei width
, GLsizei height
, GLsizei depth
,
3400 GLenum format
, GLsizei imageSize
, const GLvoid
*data
)
3402 struct gl_texture_object
*texObj
;
3403 struct gl_texture_image
*texImage
;
3405 GET_CURRENT_CONTEXT(ctx
);
3406 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3408 error
= compressed_subtexture_error_check(ctx
, dims
, target
, level
,
3409 xoffset
, 0, 0, /* pos */
3410 width
, height
, depth
, /* size */
3413 _mesa_error(ctx
, error
, "glCompressedTexSubImage%uD", dims
);
3417 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3419 _mesa_lock_texture(ctx
, texObj
);
3421 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3424 if (compressed_subtexture_error_check2(ctx
, dims
, width
, height
, depth
,
3425 format
, texImage
)) {
3426 /* error was recorded */
3428 else if (width
> 0 && height
> 0 && depth
> 0) {
3431 if (ctx
->Driver
.CompressedTexSubImage1D
) {
3432 ctx
->Driver
.CompressedTexSubImage1D(ctx
, target
, level
,
3434 format
, imageSize
, data
,
3439 if (ctx
->Driver
.CompressedTexSubImage2D
) {
3440 ctx
->Driver
.CompressedTexSubImage2D(ctx
, target
, level
,
3443 format
, imageSize
, data
,
3448 if (ctx
->Driver
.CompressedTexSubImage3D
) {
3449 ctx
->Driver
.CompressedTexSubImage3D(ctx
, target
, level
,
3450 xoffset
, yoffset
, zoffset
,
3451 width
, height
, depth
,
3452 format
, imageSize
, data
,
3460 check_gen_mipmap(ctx
, target
, texObj
, level
);
3462 ctx
->NewState
|= _NEW_TEXTURE
;
3465 _mesa_unlock_texture(ctx
, texObj
);
3470 _mesa_CompressedTexSubImage1DARB(GLenum target
, GLint level
, GLint xoffset
,
3471 GLsizei width
, GLenum format
,
3472 GLsizei imageSize
, const GLvoid
*data
)
3474 compressed_tex_sub_image(1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
3475 format
, imageSize
, data
);
3480 _mesa_CompressedTexSubImage2DARB(GLenum target
, GLint level
, GLint xoffset
,
3481 GLint yoffset
, GLsizei width
, GLsizei height
,
3482 GLenum format
, GLsizei imageSize
,
3485 compressed_tex_sub_image(2, target
, level
, xoffset
, yoffset
, 0,
3486 width
, height
, 1, format
, imageSize
, data
);
3491 _mesa_CompressedTexSubImage3DARB(GLenum target
, GLint level
, GLint xoffset
,
3492 GLint yoffset
, GLint zoffset
, GLsizei width
,
3493 GLsizei height
, GLsizei depth
, GLenum format
,
3494 GLsizei imageSize
, const GLvoid
*data
)
3496 compressed_tex_sub_image(3, target
, level
, xoffset
, yoffset
, zoffset
,
3497 width
, height
, depth
, format
, imageSize
, data
);