2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 * Texture image-related functions.
33 #include "bufferobj.h"
37 #include "framebuffer.h"
42 #include "mfeatures.h"
44 #include "texcompress.h"
45 #include "texcompress_cpal.h"
50 #include "glformats.h"
53 /* Inexplicably, GL_HALF_FLOAT_OES has a different value than GL_HALF_FLOAT.
55 #ifndef GL_HALF_FLOAT_OES
56 #define GL_HALF_FLOAT_OES 0x8D61
60 * State changes which we care about for glCopyTex[Sub]Image() calls.
61 * In particular, we care about pixel transfer state and buffer state
62 * (such as glReadBuffer to make sure we read from the right renderbuffer).
64 #define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
69 * Return the simple base format for a given internal texture format.
70 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
72 * \param ctx GL context.
73 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
75 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
76 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
78 * This is the format which is used during texture application (i.e. the
79 * texture format and env mode determine the arithmetic used.
82 _mesa_base_tex_format( struct gl_context
*ctx
, GLint internalFormat
)
84 switch (internalFormat
) {
99 case GL_LUMINANCE_ALPHA
:
100 case GL_LUMINANCE4_ALPHA4
:
101 case GL_LUMINANCE6_ALPHA2
:
102 case GL_LUMINANCE8_ALPHA8
:
103 case GL_LUMINANCE12_ALPHA4
:
104 case GL_LUMINANCE12_ALPHA12
:
105 case GL_LUMINANCE16_ALPHA16
:
106 return GL_LUMINANCE_ALPHA
;
137 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
139 if (_mesa_is_gles(ctx
)) {
140 switch (internalFormat
) {
148 if (ctx
->Extensions
.ARB_ES2_compatibility
) {
149 switch (internalFormat
) {
157 if (ctx
->Extensions
.ARB_depth_texture
) {
158 switch (internalFormat
) {
159 case GL_DEPTH_COMPONENT
:
160 case GL_DEPTH_COMPONENT16
:
161 case GL_DEPTH_COMPONENT24
:
162 case GL_DEPTH_COMPONENT32
:
163 return GL_DEPTH_COMPONENT
;
169 switch (internalFormat
) {
170 case GL_COMPRESSED_ALPHA
:
172 case GL_COMPRESSED_LUMINANCE
:
174 case GL_COMPRESSED_LUMINANCE_ALPHA
:
175 return GL_LUMINANCE_ALPHA
;
176 case GL_COMPRESSED_INTENSITY
:
178 case GL_COMPRESSED_RGB
:
180 case GL_COMPRESSED_RGBA
:
186 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
) {
187 switch (internalFormat
) {
188 case GL_COMPRESSED_RGB_FXT1_3DFX
:
190 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
197 if (ctx
->Extensions
.EXT_texture_compression_s3tc
) {
198 switch (internalFormat
) {
199 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
201 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
202 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
203 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
210 if (ctx
->Extensions
.S3_s3tc
) {
211 switch (internalFormat
) {
223 if (ctx
->Extensions
.MESA_ycbcr_texture
) {
224 if (internalFormat
== GL_YCBCR_MESA
)
225 return GL_YCBCR_MESA
;
228 if (ctx
->Extensions
.ARB_texture_float
) {
229 switch (internalFormat
) {
230 case GL_ALPHA16F_ARB
:
231 case GL_ALPHA32F_ARB
:
239 case GL_INTENSITY16F_ARB
:
240 case GL_INTENSITY32F_ARB
:
242 case GL_LUMINANCE16F_ARB
:
243 case GL_LUMINANCE32F_ARB
:
245 case GL_LUMINANCE_ALPHA16F_ARB
:
246 case GL_LUMINANCE_ALPHA32F_ARB
:
247 return GL_LUMINANCE_ALPHA
;
253 if (ctx
->Extensions
.ATI_envmap_bumpmap
) {
254 switch (internalFormat
) {
263 if (ctx
->Extensions
.EXT_texture_snorm
) {
264 switch (internalFormat
) {
279 case GL_RGBA16_SNORM
:
282 case GL_ALPHA8_SNORM
:
283 case GL_ALPHA16_SNORM
:
285 case GL_LUMINANCE_SNORM
:
286 case GL_LUMINANCE8_SNORM
:
287 case GL_LUMINANCE16_SNORM
:
289 case GL_LUMINANCE_ALPHA_SNORM
:
290 case GL_LUMINANCE8_ALPHA8_SNORM
:
291 case GL_LUMINANCE16_ALPHA16_SNORM
:
292 return GL_LUMINANCE_ALPHA
;
293 case GL_INTENSITY_SNORM
:
294 case GL_INTENSITY8_SNORM
:
295 case GL_INTENSITY16_SNORM
:
302 if (ctx
->Extensions
.EXT_packed_depth_stencil
) {
303 switch (internalFormat
) {
304 case GL_DEPTH_STENCIL_EXT
:
305 case GL_DEPTH24_STENCIL8_EXT
:
306 return GL_DEPTH_STENCIL_EXT
;
312 #if FEATURE_EXT_texture_sRGB
313 if (ctx
->Extensions
.EXT_texture_sRGB
) {
314 switch (internalFormat
) {
317 case GL_COMPRESSED_SRGB_EXT
:
318 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
320 case GL_SRGB_ALPHA_EXT
:
321 case GL_SRGB8_ALPHA8_EXT
:
322 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
323 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
324 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
325 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
327 case GL_SLUMINANCE_ALPHA_EXT
:
328 case GL_SLUMINANCE8_ALPHA8_EXT
:
329 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
330 return GL_LUMINANCE_ALPHA
;
331 case GL_SLUMINANCE_EXT
:
332 case GL_SLUMINANCE8_EXT
:
333 case GL_COMPRESSED_SLUMINANCE_EXT
:
339 #endif /* FEATURE_EXT_texture_sRGB */
341 if (ctx
->Version
>= 30 ||
342 ctx
->Extensions
.EXT_texture_integer
) {
343 switch (internalFormat
) {
345 case GL_RGBA16UI_EXT
:
346 case GL_RGBA32UI_EXT
:
362 if (ctx
->Extensions
.EXT_texture_integer
) {
363 switch (internalFormat
) {
364 case GL_ALPHA8UI_EXT
:
365 case GL_ALPHA16UI_EXT
:
366 case GL_ALPHA32UI_EXT
:
368 case GL_ALPHA16I_EXT
:
369 case GL_ALPHA32I_EXT
:
371 case GL_INTENSITY8UI_EXT
:
372 case GL_INTENSITY16UI_EXT
:
373 case GL_INTENSITY32UI_EXT
:
374 case GL_INTENSITY8I_EXT
:
375 case GL_INTENSITY16I_EXT
:
376 case GL_INTENSITY32I_EXT
:
378 case GL_LUMINANCE8UI_EXT
:
379 case GL_LUMINANCE16UI_EXT
:
380 case GL_LUMINANCE32UI_EXT
:
381 case GL_LUMINANCE8I_EXT
:
382 case GL_LUMINANCE16I_EXT
:
383 case GL_LUMINANCE32I_EXT
:
385 case GL_LUMINANCE_ALPHA8UI_EXT
:
386 case GL_LUMINANCE_ALPHA16UI_EXT
:
387 case GL_LUMINANCE_ALPHA32UI_EXT
:
388 case GL_LUMINANCE_ALPHA8I_EXT
:
389 case GL_LUMINANCE_ALPHA16I_EXT
:
390 case GL_LUMINANCE_ALPHA32I_EXT
:
391 return GL_LUMINANCE_ALPHA
;
397 if (ctx
->Extensions
.ARB_texture_rg
) {
398 switch (internalFormat
) {
400 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
402 if (!ctx
->Extensions
.ARB_half_float_pixel
)
406 if (!ctx
->Extensions
.ARB_texture_float
)
415 if (ctx
->Version
< 30 && !ctx
->Extensions
.EXT_texture_integer
)
421 case GL_COMPRESSED_RED
:
425 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
427 if (!ctx
->Extensions
.ARB_half_float_pixel
)
431 if (!ctx
->Extensions
.ARB_texture_float
)
440 if (ctx
->Version
< 30 && !ctx
->Extensions
.EXT_texture_integer
)
446 case GL_COMPRESSED_RG
:
453 if (ctx
->Extensions
.EXT_texture_shared_exponent
) {
454 switch (internalFormat
) {
462 if (ctx
->Extensions
.EXT_packed_float
) {
463 switch (internalFormat
) {
464 case GL_R11F_G11F_B10F_EXT
:
471 if (ctx
->Extensions
.ARB_depth_buffer_float
) {
472 switch (internalFormat
) {
473 case GL_DEPTH_COMPONENT32F
:
474 return GL_DEPTH_COMPONENT
;
475 case GL_DEPTH32F_STENCIL8
:
476 return GL_DEPTH_STENCIL
;
482 if (ctx
->Extensions
.ARB_texture_compression_rgtc
) {
483 switch (internalFormat
) {
484 case GL_COMPRESSED_RED_RGTC1
:
485 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
487 case GL_COMPRESSED_RG_RGTC2
:
488 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
495 if (ctx
->Extensions
.EXT_texture_compression_latc
) {
496 switch (internalFormat
) {
497 case GL_COMPRESSED_LUMINANCE_LATC1_EXT
:
498 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT
:
500 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
:
501 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT
:
502 return GL_LUMINANCE_ALPHA
;
508 if (ctx
->Extensions
.ATI_texture_compression_3dc
) {
509 switch (internalFormat
) {
510 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
511 return GL_LUMINANCE_ALPHA
;
517 if (ctx
->Extensions
.OES_compressed_ETC1_RGB8_texture
) {
518 switch (internalFormat
) {
519 case GL_ETC1_RGB8_OES
:
526 if (ctx
->API
== API_OPENGLES
) {
527 switch (internalFormat
) {
528 case GL_PALETTE4_RGB8_OES
:
529 case GL_PALETTE4_R5_G6_B5_OES
:
530 case GL_PALETTE8_RGB8_OES
:
531 case GL_PALETTE8_R5_G6_B5_OES
:
533 case GL_PALETTE4_RGBA8_OES
:
534 case GL_PALETTE8_RGB5_A1_OES
:
535 case GL_PALETTE4_RGBA4_OES
:
536 case GL_PALETTE4_RGB5_A1_OES
:
537 case GL_PALETTE8_RGBA8_OES
:
538 case GL_PALETTE8_RGBA4_OES
:
545 return -1; /* error */
550 * For cube map faces, return a face index in [0,5].
551 * For other targets return 0;
554 _mesa_tex_target_to_face(GLenum target
)
556 if (_mesa_is_cube_face(target
))
557 return (GLuint
) target
- (GLuint
) GL_TEXTURE_CUBE_MAP_POSITIVE_X
;
565 * Install gl_texture_image in a gl_texture_object according to the target
566 * and level parameters.
568 * \param tObj texture object.
569 * \param target texture target.
570 * \param level image level.
571 * \param texImage texture image.
574 set_tex_image(struct gl_texture_object
*tObj
,
575 GLenum target
, GLint level
,
576 struct gl_texture_image
*texImage
)
578 const GLuint face
= _mesa_tex_target_to_face(target
);
582 if (target
== GL_TEXTURE_RECTANGLE_NV
|| target
== GL_TEXTURE_EXTERNAL_OES
)
585 tObj
->Image
[face
][level
] = texImage
;
587 /* Set the 'back' pointer */
588 texImage
->TexObject
= tObj
;
589 texImage
->Level
= level
;
590 texImage
->Face
= face
;
595 * Allocate a texture image structure.
597 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
600 * \return a pointer to gl_texture_image struct with all fields initialized to
603 struct gl_texture_image
*
604 _mesa_new_texture_image( struct gl_context
*ctx
)
607 return CALLOC_STRUCT(gl_texture_image
);
612 * Free a gl_texture_image and associated data.
613 * This function is a fallback called via ctx->Driver.DeleteTextureImage().
615 * \param texImage texture image.
617 * Free the texture image structure and the associated image data.
620 _mesa_delete_texture_image(struct gl_context
*ctx
,
621 struct gl_texture_image
*texImage
)
623 /* Free texImage->Data and/or any other driver-specific texture
626 ASSERT(ctx
->Driver
.FreeTextureImageBuffer
);
627 ctx
->Driver
.FreeTextureImageBuffer( ctx
, texImage
);
633 * Test if a target is a proxy target.
635 * \param target texture target.
637 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
640 _mesa_is_proxy_texture(GLenum target
)
643 * NUM_TEXTURE_TARGETS should match number of terms below, except there's no
644 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
646 assert(NUM_TEXTURE_TARGETS
== 7 + 2);
648 return (target
== GL_PROXY_TEXTURE_1D
||
649 target
== GL_PROXY_TEXTURE_2D
||
650 target
== GL_PROXY_TEXTURE_3D
||
651 target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
652 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
||
653 target
== GL_PROXY_TEXTURE_1D_ARRAY_EXT
||
654 target
== GL_PROXY_TEXTURE_2D_ARRAY_EXT
);
659 * Return the proxy target which corresponds to the given texture target
662 get_proxy_target(GLenum target
)
666 case GL_PROXY_TEXTURE_1D
:
667 return GL_PROXY_TEXTURE_1D
;
669 case GL_PROXY_TEXTURE_2D
:
670 return GL_PROXY_TEXTURE_2D
;
672 case GL_PROXY_TEXTURE_3D
:
673 return GL_PROXY_TEXTURE_3D
;
674 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
675 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
676 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
677 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
678 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
679 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
680 case GL_TEXTURE_CUBE_MAP_ARB
:
681 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
682 return GL_PROXY_TEXTURE_CUBE_MAP_ARB
;
683 case GL_TEXTURE_RECTANGLE_NV
:
684 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
685 return GL_PROXY_TEXTURE_RECTANGLE_NV
;
686 case GL_TEXTURE_1D_ARRAY_EXT
:
687 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
688 return GL_PROXY_TEXTURE_1D_ARRAY_EXT
;
689 case GL_TEXTURE_2D_ARRAY_EXT
:
690 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
691 return GL_PROXY_TEXTURE_2D_ARRAY_EXT
;
693 _mesa_problem(NULL
, "unexpected target in get_proxy_target()");
700 * Get the texture object that corresponds to the target of the given
701 * texture unit. The target should have already been checked for validity.
703 * \param ctx GL context.
704 * \param texUnit texture unit.
705 * \param target texture target.
707 * \return pointer to the texture object on success, or NULL on failure.
709 struct gl_texture_object
*
710 _mesa_select_tex_object(struct gl_context
*ctx
,
711 const struct gl_texture_unit
*texUnit
,
714 const GLboolean arrayTex
= (ctx
->Extensions
.MESA_texture_array
||
715 ctx
->Extensions
.EXT_texture_array
);
719 return texUnit
->CurrentTex
[TEXTURE_1D_INDEX
];
720 case GL_PROXY_TEXTURE_1D
:
721 return ctx
->Texture
.ProxyTex
[TEXTURE_1D_INDEX
];
723 return texUnit
->CurrentTex
[TEXTURE_2D_INDEX
];
724 case GL_PROXY_TEXTURE_2D
:
725 return ctx
->Texture
.ProxyTex
[TEXTURE_2D_INDEX
];
727 return texUnit
->CurrentTex
[TEXTURE_3D_INDEX
];
728 case GL_PROXY_TEXTURE_3D
:
729 return ctx
->Texture
.ProxyTex
[TEXTURE_3D_INDEX
];
730 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
731 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
732 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
733 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
734 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
735 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
736 case GL_TEXTURE_CUBE_MAP_ARB
:
737 return ctx
->Extensions
.ARB_texture_cube_map
738 ? texUnit
->CurrentTex
[TEXTURE_CUBE_INDEX
] : NULL
;
739 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
740 return ctx
->Extensions
.ARB_texture_cube_map
741 ? ctx
->Texture
.ProxyTex
[TEXTURE_CUBE_INDEX
] : NULL
;
742 case GL_TEXTURE_RECTANGLE_NV
:
743 return ctx
->Extensions
.NV_texture_rectangle
744 ? texUnit
->CurrentTex
[TEXTURE_RECT_INDEX
] : NULL
;
745 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
746 return ctx
->Extensions
.NV_texture_rectangle
747 ? ctx
->Texture
.ProxyTex
[TEXTURE_RECT_INDEX
] : NULL
;
748 case GL_TEXTURE_1D_ARRAY_EXT
:
749 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
750 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
751 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
752 case GL_TEXTURE_2D_ARRAY_EXT
:
753 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
754 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
755 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
756 case GL_TEXTURE_BUFFER
:
757 return ctx
->Extensions
.ARB_texture_buffer_object
758 ? texUnit
->CurrentTex
[TEXTURE_BUFFER_INDEX
] : NULL
;
759 case GL_TEXTURE_EXTERNAL_OES
:
760 return ctx
->Extensions
.OES_EGL_image_external
761 ? texUnit
->CurrentTex
[TEXTURE_EXTERNAL_INDEX
] : NULL
;
763 _mesa_problem(NULL
, "bad target in _mesa_select_tex_object()");
770 * Return pointer to texture object for given target on current texture unit.
772 struct gl_texture_object
*
773 _mesa_get_current_tex_object(struct gl_context
*ctx
, GLenum target
)
775 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
776 return _mesa_select_tex_object(ctx
, texUnit
, target
);
781 * Get a texture image pointer from a texture object, given a texture
782 * target and mipmap level. The target and level parameters should
783 * have already been error-checked.
785 * \param ctx GL context.
786 * \param texObj texture unit.
787 * \param target texture target.
788 * \param level image level.
790 * \return pointer to the texture image structure, or NULL on failure.
792 struct gl_texture_image
*
793 _mesa_select_tex_image(struct gl_context
*ctx
,
794 const struct gl_texture_object
*texObj
,
795 GLenum target
, GLint level
)
797 const GLuint face
= _mesa_tex_target_to_face(target
);
801 ASSERT(level
< MAX_TEXTURE_LEVELS
);
803 return texObj
->Image
[face
][level
];
808 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
809 * it and install it. Only return NULL if passed a bad parameter or run
812 struct gl_texture_image
*
813 _mesa_get_tex_image(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
814 GLenum target
, GLint level
)
816 struct gl_texture_image
*texImage
;
821 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
823 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
825 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "texture image allocation");
829 set_tex_image(texObj
, target
, level
, texImage
);
837 * Return pointer to the specified proxy texture image.
838 * Note that proxy textures are per-context, not per-texture unit.
839 * \return pointer to texture image or NULL if invalid target, invalid
840 * level, or out of memory.
842 static struct gl_texture_image
*
843 get_proxy_tex_image(struct gl_context
*ctx
, GLenum target
, GLint level
)
845 struct gl_texture_image
*texImage
;
852 case GL_PROXY_TEXTURE_1D
:
853 if (level
>= ctx
->Const
.MaxTextureLevels
)
855 texIndex
= TEXTURE_1D_INDEX
;
857 case GL_PROXY_TEXTURE_2D
:
858 if (level
>= ctx
->Const
.MaxTextureLevels
)
860 texIndex
= TEXTURE_2D_INDEX
;
862 case GL_PROXY_TEXTURE_3D
:
863 if (level
>= ctx
->Const
.Max3DTextureLevels
)
865 texIndex
= TEXTURE_3D_INDEX
;
867 case GL_PROXY_TEXTURE_CUBE_MAP
:
868 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
870 texIndex
= TEXTURE_CUBE_INDEX
;
872 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
875 texIndex
= TEXTURE_RECT_INDEX
;
877 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
878 if (level
>= ctx
->Const
.MaxTextureLevels
)
880 texIndex
= TEXTURE_1D_ARRAY_INDEX
;
882 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
883 if (level
>= ctx
->Const
.MaxTextureLevels
)
885 texIndex
= TEXTURE_2D_ARRAY_INDEX
;
891 texImage
= ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
];
893 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
895 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "proxy texture allocation");
898 ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
] = texImage
;
899 /* Set the 'back' pointer */
900 texImage
->TexObject
= ctx
->Texture
.ProxyTex
[texIndex
];
907 * Get the maximum number of allowed mipmap levels.
909 * \param ctx GL context.
910 * \param target texture target.
912 * \return the maximum number of allowed mipmap levels for the given
913 * texture target, or zero if passed a bad target.
918 _mesa_max_texture_levels(struct gl_context
*ctx
, GLenum target
)
922 case GL_PROXY_TEXTURE_1D
:
924 case GL_PROXY_TEXTURE_2D
:
925 return ctx
->Const
.MaxTextureLevels
;
927 case GL_PROXY_TEXTURE_3D
:
928 return ctx
->Const
.Max3DTextureLevels
;
929 case GL_TEXTURE_CUBE_MAP
:
930 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
931 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
932 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
933 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
934 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
935 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
936 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
937 return ctx
->Extensions
.ARB_texture_cube_map
938 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
939 case GL_TEXTURE_RECTANGLE_NV
:
940 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
941 return ctx
->Extensions
.NV_texture_rectangle
? 1 : 0;
942 case GL_TEXTURE_1D_ARRAY_EXT
:
943 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
944 case GL_TEXTURE_2D_ARRAY_EXT
:
945 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
946 return (ctx
->Extensions
.MESA_texture_array
||
947 ctx
->Extensions
.EXT_texture_array
)
948 ? ctx
->Const
.MaxTextureLevels
: 0;
949 case GL_TEXTURE_BUFFER
:
950 return _mesa_is_desktop_gl(ctx
) &&
951 (ctx
->Extensions
.ARB_texture_buffer_object
||
952 (ctx
->Version
>= 31)) ? 1 : 0;
953 case GL_TEXTURE_EXTERNAL_OES
:
956 return 0; /* bad target */
962 * Return number of dimensions per mipmap level for the given texture target.
965 _mesa_get_texture_dimensions(GLenum target
)
969 case GL_PROXY_TEXTURE_1D
:
972 case GL_TEXTURE_RECTANGLE
:
973 case GL_TEXTURE_CUBE_MAP
:
974 case GL_PROXY_TEXTURE_2D
:
975 case GL_PROXY_TEXTURE_RECTANGLE
:
976 case GL_PROXY_TEXTURE_CUBE_MAP
:
977 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
978 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
979 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
980 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
981 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
982 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
983 case GL_TEXTURE_1D_ARRAY
:
984 case GL_PROXY_TEXTURE_1D_ARRAY
:
985 case GL_TEXTURE_EXTERNAL_OES
:
988 case GL_PROXY_TEXTURE_3D
:
989 case GL_TEXTURE_2D_ARRAY
:
990 case GL_PROXY_TEXTURE_2D_ARRAY
:
992 case GL_TEXTURE_BUFFER
:
995 _mesa_problem(NULL
, "invalid target 0x%x in get_texture_dimensions()",
1004 #if 000 /* not used anymore */
1006 * glTexImage[123]D can accept a NULL image pointer. In this case we
1007 * create a texture image with unspecified image contents per the OpenGL
1011 make_null_texture(GLint width
, GLint height
, GLint depth
, GLenum format
)
1013 const GLint components
= _mesa_components_in_format(format
);
1014 const GLint numPixels
= width
* height
* depth
;
1015 GLubyte
*data
= (GLubyte
*) MALLOC(numPixels
* components
* sizeof(GLubyte
));
1019 * Let's see if anyone finds this. If glTexImage2D() is called with
1020 * a NULL image pointer then load the texture image with something
1021 * interesting instead of leaving it indeterminate.
1024 static const char message
[8][32] = {
1025 " X X XXXXX XXX X ",
1026 " XX XX X X X X X ",
1028 " X X XXXX XXX XXXXX ",
1031 " X X XXXXX XXX X X ",
1035 GLubyte
*imgPtr
= data
;
1037 for (h
= 0; h
< depth
; h
++) {
1038 for (i
= 0; i
< height
; i
++) {
1039 GLint srcRow
= 7 - (i
% 8);
1040 for (j
= 0; j
< width
; j
++) {
1041 GLint srcCol
= j
% 32;
1042 GLubyte texel
= (message
[srcRow
][srcCol
]=='X') ? 255 : 70;
1043 for (k
= 0; k
< components
; k
++) {
1059 * Set the size and format-related fields of a gl_texture_image struct
1060 * to zero. This is used when a proxy texture test fails.
1063 clear_teximage_fields(struct gl_texture_image
*img
)
1066 img
->_BaseFormat
= 0;
1067 img
->InternalFormat
= 0;
1076 img
->HeightLog2
= 0;
1078 img
->TexFormat
= MESA_FORMAT_NONE
;
1083 * Initialize basic fields of the gl_texture_image struct.
1085 * \param ctx GL context.
1086 * \param img texture image structure to be initialized.
1087 * \param width image width.
1088 * \param height image height.
1089 * \param depth image depth.
1090 * \param border image border.
1091 * \param internalFormat internal format.
1092 * \param format the actual hardware format (one of MESA_FORMAT_*)
1094 * Fills in the fields of \p img with the given information.
1095 * Note: width, height and depth include the border.
1098 _mesa_init_teximage_fields(struct gl_context
*ctx
,
1099 struct gl_texture_image
*img
,
1100 GLsizei width
, GLsizei height
, GLsizei depth
,
1101 GLint border
, GLenum internalFormat
,
1107 ASSERT(height
>= 0);
1110 target
= img
->TexObject
->Target
;
1111 img
->_BaseFormat
= _mesa_base_tex_format( ctx
, internalFormat
);
1112 ASSERT(img
->_BaseFormat
> 0);
1113 img
->InternalFormat
= internalFormat
;
1114 img
->Border
= border
;
1116 img
->Height
= height
;
1119 img
->Width2
= width
- 2 * border
; /* == 1 << img->WidthLog2; */
1120 img
->WidthLog2
= _mesa_logbase2(img
->Width2
);
1124 case GL_TEXTURE_BUFFER
:
1125 case GL_PROXY_TEXTURE_1D
:
1130 img
->HeightLog2
= 0;
1137 case GL_TEXTURE_1D_ARRAY
:
1138 case GL_PROXY_TEXTURE_1D_ARRAY
:
1139 img
->Height2
= height
; /* no border */
1140 img
->HeightLog2
= 0; /* not used */
1148 case GL_TEXTURE_RECTANGLE
:
1149 case GL_TEXTURE_CUBE_MAP
:
1150 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1151 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1152 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1153 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1154 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1155 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1156 case GL_TEXTURE_EXTERNAL_OES
:
1157 case GL_PROXY_TEXTURE_2D
:
1158 case GL_PROXY_TEXTURE_RECTANGLE
:
1159 case GL_PROXY_TEXTURE_CUBE_MAP
:
1160 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1161 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1168 case GL_TEXTURE_2D_ARRAY
:
1169 case GL_PROXY_TEXTURE_2D_ARRAY
:
1170 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1171 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1172 img
->Depth2
= depth
; /* no border */
1173 img
->DepthLog2
= 0; /* not used */
1176 case GL_PROXY_TEXTURE_3D
:
1177 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1178 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1179 img
->Depth2
= depth
- 2 * border
; /* == 1 << img->DepthLog2; */
1180 img
->DepthLog2
= _mesa_logbase2(img
->Depth2
);
1183 _mesa_problem(NULL
, "invalid target 0x%x in _mesa_init_teximage_fields()",
1187 img
->MaxLog2
= MAX2(img
->WidthLog2
, img
->HeightLog2
);
1188 img
->TexFormat
= format
;
1193 * Free and clear fields of the gl_texture_image struct.
1195 * \param ctx GL context.
1196 * \param texImage texture image structure to be cleared.
1198 * After the call, \p texImage will have no data associated with it. Its
1199 * fields are cleared so that its parent object will test incomplete.
1202 _mesa_clear_texture_image(struct gl_context
*ctx
,
1203 struct gl_texture_image
*texImage
)
1205 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
1206 clear_teximage_fields(texImage
);
1211 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1212 * level, width, height and depth against the ctx->Const limits for textures.
1214 * A hardware driver might override this function if, for example, the
1215 * max 3D texture size is 512x512x64 (i.e. not a cube).
1217 * Note that width, height, depth == 0 is not an error. However, a
1218 * texture with zero width/height/depth will be considered "incomplete"
1219 * and texturing will effectively be disabled.
1221 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1222 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1223 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1224 * \param level as passed to glTexImage
1225 * \param internalFormat as passed to glTexImage
1226 * \param format as passed to glTexImage
1227 * \param type as passed to glTexImage
1228 * \param width as passed to glTexImage
1229 * \param height as passed to glTexImage
1230 * \param depth as passed to glTexImage
1231 * \param border as passed to glTexImage
1232 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1235 _mesa_test_proxy_teximage(struct gl_context
*ctx
, GLenum target
, GLint level
,
1236 GLint internalFormat
, GLenum format
, GLenum type
,
1237 GLint width
, GLint height
, GLint depth
, GLint border
)
1241 (void) internalFormat
;
1246 case GL_PROXY_TEXTURE_1D
:
1247 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1248 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1250 if (level
>= ctx
->Const
.MaxTextureLevels
)
1252 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1253 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1258 case GL_PROXY_TEXTURE_2D
:
1259 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1260 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1262 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1264 if (level
>= ctx
->Const
.MaxTextureLevels
)
1266 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1267 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1269 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1274 case GL_PROXY_TEXTURE_3D
:
1275 maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
1276 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1278 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1280 if (depth
< 2 * border
|| depth
> 2 * border
+ maxSize
)
1282 if (level
>= ctx
->Const
.Max3DTextureLevels
)
1284 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1285 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1287 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1289 if (depth
> 0 && !_mesa_is_pow_two(depth
- 2 * border
))
1294 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1295 maxSize
= ctx
->Const
.MaxTextureRectSize
;
1296 if (width
< 0 || width
> maxSize
)
1298 if (height
< 0 || height
> maxSize
)
1304 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
1305 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1306 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1308 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1310 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
1312 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1313 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1315 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1320 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1321 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1322 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1324 if (height
< 1 || height
> ctx
->Const
.MaxArrayTextureLayers
)
1326 if (level
>= ctx
->Const
.MaxTextureLevels
)
1328 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1329 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1334 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1335 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1336 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1338 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1340 if (depth
< 1 || depth
> ctx
->Const
.MaxArrayTextureLayers
)
1342 if (level
>= ctx
->Const
.MaxTextureLevels
)
1344 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1345 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1347 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1353 _mesa_problem(ctx
, "Invalid target in _mesa_test_proxy_teximage");
1360 * Check if the memory used by the texture would exceed the driver's limit.
1361 * This lets us support a max 3D texture size of 8K (for example) but
1362 * prevents allocating a full 8K x 8K x 8K texture.
1363 * XXX this could be rolled into the proxy texture size test (above) but
1364 * we don't have the actual texture internal format at that point.
1367 legal_texture_size(struct gl_context
*ctx
, gl_format format
,
1368 GLint width
, GLint height
, GLint depth
)
1370 uint64_t bytes
= _mesa_format_image_size64(format
, width
, height
, depth
);
1371 uint64_t mbytes
= bytes
/ (1024 * 1024); /* convert to MB */
1372 return mbytes
<= (uint64_t) ctx
->Const
.MaxTextureMbytes
;
1377 * Return true if the format is only valid for glCompressedTexImage.
1380 compressedteximage_only_format(const struct gl_context
*ctx
, GLenum format
)
1383 case GL_ETC1_RGB8_OES
:
1384 case GL_PALETTE4_RGB8_OES
:
1385 case GL_PALETTE4_RGBA8_OES
:
1386 case GL_PALETTE4_R5_G6_B5_OES
:
1387 case GL_PALETTE4_RGBA4_OES
:
1388 case GL_PALETTE4_RGB5_A1_OES
:
1389 case GL_PALETTE8_RGB8_OES
:
1390 case GL_PALETTE8_RGBA8_OES
:
1391 case GL_PALETTE8_R5_G6_B5_OES
:
1392 case GL_PALETTE8_RGBA4_OES
:
1393 case GL_PALETTE8_RGB5_A1_OES
:
1402 * Helper function to determine whether a target and specific compression
1403 * format are supported.
1406 target_can_be_compressed(const struct gl_context
*ctx
, GLenum target
,
1409 (void) intFormat
; /* not used yet */
1413 case GL_PROXY_TEXTURE_2D
:
1414 return GL_TRUE
; /* true for any compressed format so far */
1415 case GL_PROXY_TEXTURE_CUBE_MAP
:
1416 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1417 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1418 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1419 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1420 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1421 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1422 return ctx
->Extensions
.ARB_texture_cube_map
;
1423 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1424 case GL_TEXTURE_2D_ARRAY_EXT
:
1425 return (ctx
->Extensions
.MESA_texture_array
||
1426 ctx
->Extensions
.EXT_texture_array
);
1434 * Check if the given texture target value is legal for a
1435 * glTexImage1/2/3D call.
1438 legal_teximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1444 case GL_PROXY_TEXTURE_1D
:
1445 return _mesa_is_desktop_gl(ctx
);
1453 case GL_PROXY_TEXTURE_2D
:
1454 return _mesa_is_desktop_gl(ctx
);
1455 case GL_PROXY_TEXTURE_CUBE_MAP
:
1456 return _mesa_is_desktop_gl(ctx
)
1457 && ctx
->Extensions
.ARB_texture_cube_map
;
1458 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1459 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1460 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1461 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1462 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1463 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1464 return ctx
->Extensions
.ARB_texture_cube_map
;
1465 case GL_TEXTURE_RECTANGLE_NV
:
1466 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1467 return _mesa_is_desktop_gl(ctx
)
1468 && ctx
->Extensions
.NV_texture_rectangle
;
1469 case GL_TEXTURE_1D_ARRAY_EXT
:
1470 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1471 return _mesa_is_desktop_gl(ctx
)
1472 && (ctx
->Extensions
.MESA_texture_array
||
1473 ctx
->Extensions
.EXT_texture_array
);
1481 case GL_PROXY_TEXTURE_3D
:
1482 return _mesa_is_desktop_gl(ctx
);
1483 case GL_TEXTURE_2D_ARRAY_EXT
:
1484 return (_mesa_is_desktop_gl(ctx
)
1485 && (ctx
->Extensions
.MESA_texture_array
||
1486 ctx
->Extensions
.EXT_texture_array
))
1487 || _mesa_is_gles3(ctx
);
1488 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1489 return _mesa_is_desktop_gl(ctx
)
1490 && (ctx
->Extensions
.MESA_texture_array
||
1491 ctx
->Extensions
.EXT_texture_array
);
1496 _mesa_problem(ctx
, "invalid dims=%u in legal_teximage_target()", dims
);
1503 * Check if the given texture target value is legal for a
1504 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1505 * The difference compared to legal_teximage_target() above is that
1506 * proxy targets are not supported.
1509 legal_texsubimage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1513 return _mesa_is_desktop_gl(ctx
) && target
== GL_TEXTURE_1D
;
1518 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1519 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1520 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1521 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1522 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1523 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1524 return ctx
->Extensions
.ARB_texture_cube_map
;
1525 case GL_TEXTURE_RECTANGLE_NV
:
1526 return _mesa_is_desktop_gl(ctx
)
1527 && ctx
->Extensions
.NV_texture_rectangle
;
1528 case GL_TEXTURE_1D_ARRAY_EXT
:
1529 return _mesa_is_desktop_gl(ctx
)
1530 && (ctx
->Extensions
.MESA_texture_array
||
1531 ctx
->Extensions
.EXT_texture_array
);
1539 case GL_TEXTURE_2D_ARRAY_EXT
:
1540 return (_mesa_is_desktop_gl(ctx
)
1541 && (ctx
->Extensions
.MESA_texture_array
||
1542 ctx
->Extensions
.EXT_texture_array
))
1543 || _mesa_is_gles3(ctx
);
1548 _mesa_problem(ctx
, "invalid dims=%u in legal_texsubimage_target()",
1556 * Helper function to determine if a texture object is mutable (in terms
1557 * of GL_ARB_texture_storage).
1560 mutable_tex_object(struct gl_context
*ctx
, GLenum target
)
1562 if (ctx
->Extensions
.ARB_texture_storage
) {
1563 struct gl_texture_object
*texObj
=
1564 _mesa_get_current_tex_object(ctx
, target
);
1565 return !texObj
->Immutable
;
1572 _mesa_es_error_check_format_and_type(GLenum format
, GLenum type
,
1573 unsigned dimensions
)
1575 bool type_valid
= true;
1580 case GL_LUMINANCE_ALPHA
:
1581 type_valid
= (type
== GL_UNSIGNED_BYTE
1583 || type
== GL_HALF_FLOAT_OES
);
1587 type_valid
= (type
== GL_UNSIGNED_BYTE
1588 || type
== GL_UNSIGNED_SHORT_5_6_5
1590 || type
== GL_HALF_FLOAT_OES
);
1594 type_valid
= (type
== GL_UNSIGNED_BYTE
1595 || type
== GL_UNSIGNED_SHORT_4_4_4_4
1596 || type
== GL_UNSIGNED_SHORT_5_5_5_1
1598 || type
== GL_HALF_FLOAT_OES
1599 || type
== GL_UNSIGNED_INT_2_10_10_10_REV
);
1602 case GL_DEPTH_COMPONENT
:
1603 /* This format is filtered against invalid dimensionalities elsewhere.
1605 type_valid
= (type
== GL_UNSIGNED_SHORT
1606 || type
== GL_UNSIGNED_INT
);
1609 case GL_DEPTH_STENCIL
:
1610 /* This format is filtered against invalid dimensionalities elsewhere.
1612 type_valid
= (type
== GL_UNSIGNED_INT_24_8
);
1616 type_valid
= (type
== GL_UNSIGNED_BYTE
);
1618 /* This feels like a bug in the EXT_texture_format_BGRA8888 spec, but
1619 * the format does not appear to be allowed for 3D textures in OpenGL
1622 if (dimensions
!= 2)
1623 return GL_INVALID_VALUE
;
1628 return GL_INVALID_VALUE
;
1631 return type_valid
? GL_NO_ERROR
: GL_INVALID_OPERATION
;
1637 * Return expected size of a compressed texture.
1640 compressed_tex_size(GLsizei width
, GLsizei height
, GLsizei depth
,
1643 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
1644 return _mesa_format_image_size(mesaFormat
, width
, height
, depth
);
1649 * Return compressed texture block size, in pixels.
1652 get_compressed_block_size(GLenum glformat
, GLuint
*bw
, GLuint
*bh
)
1654 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
1655 _mesa_get_format_block_size(mesaFormat
, bw
, bh
);
1660 * Special value returned by error some texture error checking functions when
1661 * an error is detected and the proxy texture image's width/height/depth/format
1662 * fields should be zeroed-out.
1664 #define PROXY_ERROR 2
1668 * Test the glTexImage[123]D() parameters for errors.
1670 * \param ctx GL context.
1671 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1672 * \param target texture target given by the user.
1673 * \param level image level given by the user.
1674 * \param internalFormat internal format given by the user.
1675 * \param format pixel data format given by the user.
1676 * \param type pixel data type given by the user.
1677 * \param width image width given by the user.
1678 * \param height image height given by the user.
1679 * \param depth image depth given by the user.
1680 * \param border image border given by the user.
1682 * \return PROXY_ERROR if there's an error that should zero-out the proxy image,
1683 * GL_TRUE if a regular GL error is found, or GL_FALSE if no error,
1685 * Verifies each of the parameters against the constants specified in
1686 * __struct gl_contextRec::Const and the supported extensions, and according
1687 * to the OpenGL specification.
1690 texture_error_check( struct gl_context
*ctx
,
1691 GLuint dimensions
, GLenum target
,
1692 GLint level
, GLint internalFormat
,
1693 GLenum format
, GLenum type
,
1694 GLint width
, GLint height
,
1695 GLint depth
, GLint border
)
1697 const GLenum proxyTarget
= get_proxy_target(target
);
1698 const GLboolean isProxy
= target
== proxyTarget
;
1699 GLboolean sizeOK
= GL_TRUE
;
1700 GLboolean colorFormat
;
1703 /* Even though there are no color-index textures, we still have to support
1704 * uploading color-index data and remapping it to RGB via the
1705 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1707 const GLboolean indexFormat
= (format
== GL_COLOR_INDEX
);
1709 /* Note: for proxy textures, some error conditions immediately generate
1710 * a GL error in the usual way. But others do not generate a GL error.
1711 * Instead, they cause the width, height, depth, format fields of the
1712 * texture image to be zeroed-out. The GL spec seems to indicate that the
1713 * zero-out behaviour is only used in cases related to memory allocation.
1716 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1717 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1718 _mesa_error(ctx
, GL_INVALID_VALUE
,
1719 "glTexImage%dD(level=%d)", dimensions
, level
);
1724 if (border
< 0 || border
> 1 ||
1725 ((ctx
->API
!= API_OPENGL
||
1726 target
== GL_TEXTURE_RECTANGLE_NV
||
1727 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1728 _mesa_error(ctx
, GL_INVALID_VALUE
,
1729 "glTexImage%dD(border=%d)", dimensions
, border
);
1733 if (width
< 0 || height
< 0 || depth
< 0) {
1734 _mesa_error(ctx
, GL_INVALID_VALUE
,
1735 "glTexImage%dD(width, height or depth < 0)", dimensions
);
1739 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1740 * combinations of format, internalFormat, and type that can be used.
1741 * Formats and types that require additional extensions (e.g., GL_FLOAT
1742 * requires GL_OES_texture_float) are filtered elsewhere.
1744 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
1745 if (format
!= internalFormat
) {
1746 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1747 "glTexImage%dD(format = %s, internalFormat = %s)",
1749 _mesa_lookup_enum_by_nr(format
),
1750 _mesa_lookup_enum_by_nr(internalFormat
));
1754 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
1755 if (err
!= GL_NO_ERROR
) {
1756 _mesa_error(ctx
, err
,
1757 "glTexImage%dD(format = %s, type = %s)",
1759 _mesa_lookup_enum_by_nr(format
),
1760 _mesa_lookup_enum_by_nr(type
));
1765 /* Do this simple check before calling the TestProxyTexImage() function */
1766 if (proxyTarget
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
) {
1767 sizeOK
= (width
== height
);
1771 * Use the proxy texture driver hook to see if the size/level/etc are
1774 sizeOK
= sizeOK
&& ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
1775 internalFormat
, format
,
1776 type
, width
, height
,
1780 /* No GL error is recorded, but we need to zero-out the image dims */
1784 _mesa_error(ctx
, GL_INVALID_VALUE
,
1785 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1786 dimensions
, level
, width
, height
, depth
);
1791 /* Check internalFormat */
1792 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1793 _mesa_error(ctx
, GL_INVALID_VALUE
,
1794 "glTexImage%dD(internalFormat=%s)",
1795 dimensions
, _mesa_lookup_enum_by_nr(internalFormat
));
1799 /* Check incoming image format and type */
1800 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
1801 if (err
!= GL_NO_ERROR
) {
1802 _mesa_error(ctx
, err
,
1803 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1804 dimensions
, format
, type
);
1808 /* make sure internal format and format basically agree */
1809 colorFormat
= _mesa_is_color_format(format
);
1810 if ((_mesa_is_color_format(internalFormat
) && !colorFormat
&& !indexFormat
) ||
1811 (_mesa_is_depth_format(internalFormat
) != _mesa_is_depth_format(format
)) ||
1812 (_mesa_is_ycbcr_format(internalFormat
) != _mesa_is_ycbcr_format(format
)) ||
1813 (_mesa_is_depthstencil_format(internalFormat
) != _mesa_is_depthstencil_format(format
)) ||
1814 (_mesa_is_dudv_format(internalFormat
) != _mesa_is_dudv_format(format
))) {
1815 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1816 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1817 dimensions
, internalFormat
, format
);
1821 /* additional checks for ycbcr textures */
1822 if (internalFormat
== GL_YCBCR_MESA
) {
1823 ASSERT(ctx
->Extensions
.MESA_ycbcr_texture
);
1824 if (type
!= GL_UNSIGNED_SHORT_8_8_MESA
&&
1825 type
!= GL_UNSIGNED_SHORT_8_8_REV_MESA
) {
1827 _mesa_snprintf(message
, sizeof(message
),
1828 "glTexImage%dD(format/type YCBCR mismatch)",
1830 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", message
);
1831 return GL_TRUE
; /* error */
1833 if (target
!= GL_TEXTURE_2D
&&
1834 target
!= GL_PROXY_TEXTURE_2D
&&
1835 target
!= GL_TEXTURE_RECTANGLE_NV
&&
1836 target
!= GL_PROXY_TEXTURE_RECTANGLE_NV
) {
1837 _mesa_error(ctx
, GL_INVALID_ENUM
,
1838 "glTexImage%dD(bad target for YCbCr texture)",
1844 _mesa_snprintf(message
, sizeof(message
),
1845 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1846 dimensions
, border
);
1847 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", message
);
1852 /* additional checks for depth textures */
1853 if (_mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_COMPONENT
) {
1854 /* Only 1D, 2D, rect, array and cube textures supported, not 3D
1855 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */
1856 if (target
!= GL_TEXTURE_1D
&&
1857 target
!= GL_PROXY_TEXTURE_1D
&&
1858 target
!= GL_TEXTURE_2D
&&
1859 target
!= GL_PROXY_TEXTURE_2D
&&
1860 target
!= GL_TEXTURE_1D_ARRAY
&&
1861 target
!= GL_PROXY_TEXTURE_1D_ARRAY
&&
1862 target
!= GL_TEXTURE_2D_ARRAY
&&
1863 target
!= GL_PROXY_TEXTURE_2D_ARRAY
&&
1864 target
!= GL_TEXTURE_RECTANGLE_ARB
&&
1865 target
!= GL_PROXY_TEXTURE_RECTANGLE_ARB
&&
1866 !((_mesa_is_cube_face(target
) || target
== GL_PROXY_TEXTURE_CUBE_MAP
) &&
1867 (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_gpu_shader4
))) {
1868 _mesa_error(ctx
, GL_INVALID_ENUM
,
1869 "glTexImage%dD(bad target for depth texture)",
1875 /* additional checks for compressed textures */
1876 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
1877 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1878 _mesa_error(ctx
, GL_INVALID_ENUM
,
1879 "glTexImage%dD(target can't be compressed)", dimensions
);
1882 if (compressedteximage_only_format(ctx
, internalFormat
)) {
1883 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1884 "glTexImage%dD(no compression for format)", dimensions
);
1888 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1889 "glTexImage%dD(border!=0)", dimensions
);
1894 /* additional checks for integer textures */
1895 if ((ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) &&
1896 (_mesa_is_enum_format_integer(format
) !=
1897 _mesa_is_enum_format_integer(internalFormat
))) {
1898 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1899 "glTexImage%dD(integer/non-integer format mismatch)",
1904 if (!mutable_tex_object(ctx
, target
)) {
1905 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1906 "glTexImage%dD(immutable texture)", dimensions
);
1910 /* if we get here, the parameters are OK */
1916 * Error checking for glCompressedTexImage[123]D().
1917 * \param reason returns reason for error, if any
1918 * \return error code or GL_NO_ERROR or PROXY_ERROR.
1921 compressed_texture_error_check(struct gl_context
*ctx
, GLint dimensions
,
1922 GLenum target
, GLint level
,
1923 GLenum internalFormat
, GLsizei width
,
1924 GLsizei height
, GLsizei depth
, GLint border
,
1927 const GLenum proxyTarget
= get_proxy_target(target
);
1928 const GLint maxLevels
= _mesa_max_texture_levels(ctx
, target
);
1930 GLenum choose_format
;
1932 GLenum proxy_format
;
1933 GLenum error
= GL_NO_ERROR
;
1934 char *reason
= ""; /* no error */
1936 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1938 error
= GL_INVALID_ENUM
;
1942 /* This will detect any invalid internalFormat value */
1943 if (!_mesa_is_compressed_format(ctx
, internalFormat
)) {
1944 reason
= "internalFormat";
1945 error
= GL_INVALID_ENUM
;
1949 switch (internalFormat
) {
1951 case GL_PALETTE4_RGB8_OES
:
1952 case GL_PALETTE4_RGBA8_OES
:
1953 case GL_PALETTE4_R5_G6_B5_OES
:
1954 case GL_PALETTE4_RGBA4_OES
:
1955 case GL_PALETTE4_RGB5_A1_OES
:
1956 case GL_PALETTE8_RGB8_OES
:
1957 case GL_PALETTE8_RGBA8_OES
:
1958 case GL_PALETTE8_R5_G6_B5_OES
:
1959 case GL_PALETTE8_RGBA4_OES
:
1960 case GL_PALETTE8_RGB5_A1_OES
:
1961 _mesa_cpal_compressed_format_type(internalFormat
, &choose_format
,
1963 proxy_format
= choose_format
;
1965 /* check level (note that level should be zero or less!) */
1966 if (level
> 0 || level
< -maxLevels
) {
1968 error
= GL_INVALID_VALUE
;
1972 if (dimensions
!= 2) {
1973 reason
= "compressed paletted textures must be 2D";
1974 error
= GL_INVALID_OPERATION
;
1978 /* Figure out the expected texture size (in bytes). This will be
1979 * checked against the actual size later.
1981 expectedSize
= _mesa_cpal_compressed_size(level
, internalFormat
,
1984 /* This is for the benefit of the TestProxyTexImage below. It expects
1985 * level to be non-negative. OES_compressed_paletted_texture uses a
1986 * weird mechanism where the level specified to glCompressedTexImage2D
1987 * is -(n-1) number of levels in the texture, and the data specifies the
1988 * complete mipmap stack. This is done to ensure the palette is the
1989 * same for all levels.
1996 choose_format
= GL_NONE
;
1997 choose_type
= GL_NONE
;
1998 proxy_format
= internalFormat
;
2001 if (level
< 0 || level
>= maxLevels
) {
2003 error
= GL_INVALID_VALUE
;
2007 /* Figure out the expected texture size (in bytes). This will be
2008 * checked against the actual size later.
2010 expectedSize
= compressed_tex_size(width
, height
, depth
, internalFormat
);
2014 /* This should really never fail */
2015 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
2016 reason
= "internalFormat";
2017 error
= GL_INVALID_ENUM
;
2021 /* No compressed formats support borders at this time */
2023 reason
= "border != 0";
2024 error
= GL_INVALID_VALUE
;
2028 /* For cube map, width must equal height */
2029 if (_mesa_is_cube_face(target
) && width
!= height
) {
2030 reason
= "width != height";
2031 error
= GL_INVALID_VALUE
;
2035 /* check image size against compression block size */
2037 gl_format texFormat
=
2038 ctx
->Driver
.ChooseTextureFormat(ctx
, proxy_format
,
2039 choose_format
, choose_type
);
2042 _mesa_get_format_block_size(texFormat
, &bw
, &bh
);
2043 if ((width
> bw
&& width
% bw
> 0) ||
2044 (height
> bh
&& height
% bh
> 0)) {
2046 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is
2047 * generated [...] if any parameter combinations are not
2048 * supported by the specific compressed internal format.
2050 reason
= "invalid width or height for compression format";
2051 error
= GL_INVALID_OPERATION
;
2056 /* check image sizes */
2057 if (!ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
2058 proxy_format
, choose_format
,
2060 width
, height
, depth
, border
)) {
2061 /* See error comment above */
2062 if (target
== proxyTarget
) {
2065 reason
= "invalid width, height or format";
2066 error
= GL_INVALID_OPERATION
;
2070 /* check image size in bytes */
2071 if (expectedSize
!= imageSize
) {
2072 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
2073 * if <imageSize> is not consistent with the format, dimensions, and
2074 * contents of the specified image.
2076 reason
= "imageSize inconsistant with width/height/format";
2077 error
= GL_INVALID_VALUE
;
2081 if (!mutable_tex_object(ctx
, target
)) {
2082 reason
= "immutable texture";
2083 error
= GL_INVALID_OPERATION
;
2090 _mesa_error(ctx
, error
, "glCompressedTexImage%dD(%s)", dimensions
, reason
);
2097 * Test glTexSubImage[123]D() parameters for errors.
2099 * \param ctx GL context.
2100 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2101 * \param target texture target given by the user.
2102 * \param level image level given by the user.
2103 * \param xoffset sub-image x offset given by the user.
2104 * \param yoffset sub-image y offset given by the user.
2105 * \param zoffset sub-image z offset given by the user.
2106 * \param format pixel data format given by the user.
2107 * \param type pixel data type given by the user.
2108 * \param width image width given by the user.
2109 * \param height image height given by the user.
2110 * \param depth image depth given by the user.
2112 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2114 * Verifies each of the parameters against the constants specified in
2115 * __struct gl_contextRec::Const and the supported extensions, and according
2116 * to the OpenGL specification.
2119 subtexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
2120 GLenum target
, GLint level
,
2121 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2122 GLint width
, GLint height
, GLint depth
,
2123 GLenum format
, GLenum type
)
2127 /* Basic level check */
2128 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
2129 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage2D(level=%d)", level
);
2133 /* Check for negative sizes */
2135 _mesa_error(ctx
, GL_INVALID_VALUE
,
2136 "glTexSubImage%dD(width=%d)", dimensions
, width
);
2139 if (height
< 0 && dimensions
> 1) {
2140 _mesa_error(ctx
, GL_INVALID_VALUE
,
2141 "glTexSubImage%dD(height=%d)", dimensions
, height
);
2144 if (depth
< 0 && dimensions
> 2) {
2145 _mesa_error(ctx
, GL_INVALID_VALUE
,
2146 "glTexSubImage%dD(depth=%d)", dimensions
, depth
);
2150 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2151 * combinations of format and type that can be used. Formats and types
2152 * that require additional extensions (e.g., GL_FLOAT requires
2153 * GL_OES_texture_float) are filtered elsewhere.
2155 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2156 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
2157 if (err
!= GL_NO_ERROR
) {
2158 _mesa_error(ctx
, err
,
2159 "glTexSubImage%dD(format = %s, type = %s)",
2161 _mesa_lookup_enum_by_nr(format
),
2162 _mesa_lookup_enum_by_nr(type
));
2167 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
2168 if (err
!= GL_NO_ERROR
) {
2169 _mesa_error(ctx
, err
,
2170 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
2171 dimensions
, format
, type
);
2180 * Do second part of glTexSubImage which depends on the destination texture.
2181 * \return GL_TRUE if error recorded, GL_FALSE otherwise
2184 subtexture_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
2185 GLenum target
, GLint level
,
2186 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2187 GLint width
, GLint height
, GLint depth
,
2188 GLenum format
, GLenum type
,
2189 const struct gl_texture_image
*destTex
)
2192 /* undefined image level */
2193 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexSubImage%dD", dimensions
);
2197 if (xoffset
< -((GLint
)destTex
->Border
)) {
2198 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset)",
2202 if (xoffset
+ width
> (GLint
) (destTex
->Width
+ destTex
->Border
)) {
2203 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset+width)",
2207 if (dimensions
> 1) {
2208 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : destTex
->Border
;
2209 if (yoffset
< -yBorder
) {
2210 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset)",
2214 if (yoffset
+ height
> (GLint
) destTex
->Height
+ yBorder
) {
2215 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset+height)",
2220 if (dimensions
> 2) {
2221 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
) ? 0 : destTex
->Border
;
2222 if (zoffset
< -zBorder
) {
2223 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset)");
2226 if (zoffset
+ depth
> (GLint
) destTex
->Depth
+ zBorder
) {
2227 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset+depth)");
2232 if (_mesa_is_format_compressed(destTex
->TexFormat
)) {
2235 if (compressedteximage_only_format(ctx
, destTex
->InternalFormat
)) {
2236 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2237 "glTexSubImage%dD(no compression for format)", dimensions
);
2241 /* do tests which depend on compression block size */
2242 _mesa_get_format_block_size(destTex
->TexFormat
, &bw
, &bh
);
2244 /* offset must be multiple of block size */
2245 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0)) {
2246 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2247 "glTexSubImage%dD(xoffset = %d, yoffset = %d)",
2248 dimensions
, xoffset
, yoffset
);
2251 /* size must be multiple of bw by bh or equal to whole texture size */
2252 if ((width
% bw
!= 0) && (GLuint
) width
!= destTex
->Width
) {
2253 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2254 "glTexSubImage%dD(width = %d)", dimensions
, width
);
2257 if ((height
% bh
!= 0) && (GLuint
) height
!= destTex
->Height
) {
2258 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2259 "glTexSubImage%dD(height = %d)", dimensions
, height
);
2264 if (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) {
2265 /* both source and dest must be integer-valued, or neither */
2266 if (_mesa_is_format_integer_color(destTex
->TexFormat
) !=
2267 _mesa_is_enum_format_integer(format
)) {
2268 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2269 "glTexSubImage%dD(integer/non-integer format mismatch)",
2280 * Test glCopyTexImage[12]D() parameters for errors.
2282 * \param ctx GL context.
2283 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2284 * \param target texture target given by the user.
2285 * \param level image level given by the user.
2286 * \param internalFormat internal format given by the user.
2287 * \param width image width given by the user.
2288 * \param height image height given by the user.
2289 * \param border texture border.
2291 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2293 * Verifies each of the parameters against the constants specified in
2294 * __struct gl_contextRec::Const and the supported extensions, and according
2295 * to the OpenGL specification.
2298 copytexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
2299 GLenum target
, GLint level
, GLint internalFormat
,
2300 GLint width
, GLint height
, GLint border
)
2302 const GLenum proxyTarget
= get_proxy_target(target
);
2303 const GLenum type
= GL_FLOAT
;
2308 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2309 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexImage%uD(target=%s)",
2310 dimensions
, _mesa_lookup_enum_by_nr(target
));
2314 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
2315 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
2316 _mesa_error(ctx
, GL_INVALID_VALUE
,
2317 "glCopyTexImage%dD(level=%d)", dimensions
, level
);
2321 /* Check that the source buffer is complete */
2322 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2323 if (ctx
->ReadBuffer
->_Status
== 0) {
2324 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2326 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2327 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2328 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2332 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2333 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2334 "glCopyTexImage%dD(multisample FBO)",
2341 if (border
< 0 || border
> 1 ||
2342 ((ctx
->API
!= API_OPENGL
||
2343 target
== GL_TEXTURE_RECTANGLE_NV
||
2344 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
2345 _mesa_error(ctx
, GL_INVALID_VALUE
,
2346 "glCopyTexImage%dD(border=%d)", dimensions
, border
);
2350 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2353 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2354 switch (internalFormat
) {
2359 case GL_LUMINANCE_ALPHA
:
2362 _mesa_error(ctx
, GL_INVALID_VALUE
,
2363 "glCopyTexImage%dD(internalFormat)", dimensions
);
2368 baseFormat
= _mesa_base_tex_format(ctx
, internalFormat
);
2369 if (baseFormat
< 0) {
2370 _mesa_error(ctx
, GL_INVALID_VALUE
,
2371 "glCopyTexImage%dD(internalFormat)", dimensions
);
2375 if (!_mesa_source_buffer_exists(ctx
, baseFormat
)) {
2376 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2377 "glCopyTexImage%dD(missing readbuffer)", dimensions
);
2381 /* From the EXT_texture_integer spec:
2383 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2384 * if the texture internalformat is an integer format and the read color
2385 * buffer is not an integer format, or if the internalformat is not an
2386 * integer format and the read color buffer is an integer format."
2388 if (_mesa_is_color_format(internalFormat
)) {
2389 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2391 if (_mesa_is_enum_format_integer(rb
->InternalFormat
) !=
2392 _mesa_is_enum_format_integer(internalFormat
)) {
2393 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2394 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2399 /* Do size, level checking */
2400 sizeOK
= (proxyTarget
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
)
2401 ? (width
== height
) : 1;
2403 sizeOK
= sizeOK
&& ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
2404 internalFormat
, baseFormat
,
2405 type
, width
, height
,
2409 if (dimensions
== 1) {
2410 _mesa_error(ctx
, GL_INVALID_VALUE
,
2411 "glCopyTexImage1D(width=%d)", width
);
2414 ASSERT(dimensions
== 2);
2415 _mesa_error(ctx
, GL_INVALID_VALUE
,
2416 "glCopyTexImage2D(width=%d, height=%d)", width
, height
);
2421 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
2422 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2423 _mesa_error(ctx
, GL_INVALID_ENUM
,
2424 "glCopyTexImage%dD(target)", dimensions
);
2427 if (compressedteximage_only_format(ctx
, internalFormat
)) {
2428 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2429 "glCopyTexImage%dD(no compression for format)", dimensions
);
2433 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2434 "glCopyTexImage%dD(border!=0)", dimensions
);
2439 if (!mutable_tex_object(ctx
, target
)) {
2440 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2441 "glCopyTexImage%dD(immutable texture)", dimensions
);
2445 /* if we get here, the parameters are OK */
2451 * Test glCopyTexSubImage[12]D() parameters for errors.
2452 * Note that this is the first part of error checking.
2453 * See also copytexsubimage_error_check2() below for the second part.
2455 * \param ctx GL context.
2456 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2457 * \param target texture target given by the user.
2458 * \param level image level given by the user.
2460 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2463 copytexsubimage_error_check1( struct gl_context
*ctx
, GLuint dimensions
,
2464 GLenum target
, GLint level
)
2466 /* Check that the source buffer is complete */
2467 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2468 if (ctx
->ReadBuffer
->_Status
== 0) {
2469 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2471 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2472 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2473 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2477 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2478 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2479 "glCopyTexSubImage%dD(multisample FBO)",
2485 /* check target (proxies not allowed) */
2486 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2487 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexSubImage%uD(target=%s)",
2488 dimensions
, _mesa_lookup_enum_by_nr(target
));
2493 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
2494 _mesa_error(ctx
, GL_INVALID_VALUE
,
2495 "glCopyTexSubImage%dD(level=%d)", dimensions
, level
);
2504 * Second part of error checking for glCopyTexSubImage[12]D().
2505 * \param xoffset sub-image x offset given by the user.
2506 * \param yoffset sub-image y offset given by the user.
2507 * \param zoffset sub-image z offset given by the user.
2508 * \param width image width given by the user.
2509 * \param height image height given by the user.
2512 copytexsubimage_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
2513 GLenum target
, GLint level
,
2514 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2515 GLsizei width
, GLsizei height
,
2516 const struct gl_texture_image
*teximage
)
2518 /* check that dest tex image exists */
2520 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2521 "glCopyTexSubImage%dD(undefined texture level: %d)",
2528 _mesa_error(ctx
, GL_INVALID_VALUE
,
2529 "glCopyTexSubImage%dD(width=%d)", dimensions
, width
);
2532 if (dimensions
> 1 && height
< 0) {
2533 _mesa_error(ctx
, GL_INVALID_VALUE
,
2534 "glCopyTexSubImage%dD(height=%d)", dimensions
, height
);
2538 /* check x/y offsets */
2539 if (xoffset
< -((GLint
)teximage
->Border
)) {
2540 _mesa_error(ctx
, GL_INVALID_VALUE
,
2541 "glCopyTexSubImage%dD(xoffset=%d)", dimensions
, xoffset
);
2544 if (xoffset
+ width
> (GLint
) (teximage
->Width
+ teximage
->Border
)) {
2545 _mesa_error(ctx
, GL_INVALID_VALUE
,
2546 "glCopyTexSubImage%dD(xoffset+width)", dimensions
);
2549 if (dimensions
> 1) {
2550 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : teximage
->Border
;
2551 if (yoffset
< -yBorder
) {
2552 _mesa_error(ctx
, GL_INVALID_VALUE
,
2553 "glCopyTexSubImage%dD(yoffset=%d)", dimensions
, yoffset
);
2556 /* NOTE: we're adding the border here, not subtracting! */
2557 if (yoffset
+ height
> (GLint
) teximage
->Height
+ yBorder
) {
2558 _mesa_error(ctx
, GL_INVALID_VALUE
,
2559 "glCopyTexSubImage%dD(yoffset+height)", dimensions
);
2564 /* check z offset */
2565 if (dimensions
> 2) {
2566 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
) ? 0 : teximage
->Border
;
2567 if (zoffset
< -zBorder
) {
2568 _mesa_error(ctx
, GL_INVALID_VALUE
,
2569 "glCopyTexSubImage%dD(zoffset)", dimensions
);
2572 if (zoffset
> (GLint
) teximage
->Depth
+ zBorder
) {
2573 _mesa_error(ctx
, GL_INVALID_VALUE
,
2574 "glCopyTexSubImage%dD(zoffset+depth)", dimensions
);
2579 if (_mesa_is_format_compressed(teximage
->TexFormat
)) {
2580 if (compressedteximage_only_format(ctx
, teximage
->InternalFormat
)) {
2581 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2582 "glCopyTexSubImage%dD(no compression for format)", dimensions
);
2585 /* offset must be multiple of 4 */
2586 if ((xoffset
& 3) || (yoffset
& 3)) {
2587 _mesa_error(ctx
, GL_INVALID_VALUE
,
2588 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions
);
2591 /* size must be multiple of 4 */
2592 if ((width
& 3) != 0 && (GLuint
) width
!= teximage
->Width
) {
2593 _mesa_error(ctx
, GL_INVALID_VALUE
,
2594 "glCopyTexSubImage%dD(width)", dimensions
);
2597 if ((height
& 3) != 0 && (GLuint
) height
!= teximage
->Height
) {
2598 _mesa_error(ctx
, GL_INVALID_VALUE
,
2599 "glCopyTexSubImage%dD(height)", dimensions
);
2604 if (teximage
->InternalFormat
== GL_YCBCR_MESA
) {
2605 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glCopyTexSubImage2D");
2609 if (!_mesa_source_buffer_exists(ctx
, teximage
->_BaseFormat
)) {
2610 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2611 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2612 dimensions
, teximage
->_BaseFormat
);
2616 /* From the EXT_texture_integer spec:
2618 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2619 * if the texture internalformat is an integer format and the read color
2620 * buffer is not an integer format, or if the internalformat is not an
2621 * integer format and the read color buffer is an integer format."
2623 if (_mesa_is_color_format(teximage
->InternalFormat
)) {
2624 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2626 if (_mesa_is_format_integer_color(rb
->Format
) !=
2627 _mesa_is_format_integer_color(teximage
->TexFormat
)) {
2628 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2629 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2634 /* if we get here, the parameters are OK */
2639 /** Callback info for walking over FBO hash table */
2642 struct gl_context
*ctx
;
2643 struct gl_texture_object
*texObj
;
2649 * Check render to texture callback. Called from _mesa_HashWalk().
2652 check_rtt_cb(GLuint key
, void *data
, void *userData
)
2654 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2655 const struct cb_info
*info
= (struct cb_info
*) userData
;
2656 struct gl_context
*ctx
= info
->ctx
;
2657 const struct gl_texture_object
*texObj
= info
->texObj
;
2658 const GLuint level
= info
->level
, face
= info
->face
;
2660 /* If this is a user-created FBO */
2661 if (_mesa_is_user_fbo(fb
)) {
2663 /* check if any of the FBO's attachments point to 'texObj' */
2664 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2665 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2666 if (att
->Type
== GL_TEXTURE
&&
2667 att
->Texture
== texObj
&&
2668 att
->TextureLevel
== level
&&
2669 att
->CubeMapFace
== face
) {
2670 ASSERT(_mesa_get_attachment_teximage(att
));
2671 /* Tell driver about the new renderbuffer texture */
2672 ctx
->Driver
.RenderTexture(ctx
, ctx
->DrawBuffer
, att
);
2673 /* Mark fb status as indeterminate to force re-validation */
2682 * When a texture image is specified we have to check if it's bound to
2683 * any framebuffer objects (render to texture) in order to detect changes
2684 * in size or format since that effects FBO completeness.
2685 * Any FBOs rendering into the texture must be re-validated.
2688 _mesa_update_fbo_texture(struct gl_context
*ctx
,
2689 struct gl_texture_object
*texObj
,
2690 GLuint face
, GLuint level
)
2692 /* Only check this texture if it's been marked as RenderToTexture */
2693 if (texObj
->_RenderToTexture
) {
2694 struct cb_info info
;
2696 info
.texObj
= texObj
;
2699 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, check_rtt_cb
, &info
);
2705 * If the texture object's GenerateMipmap flag is set and we've
2706 * changed the texture base level image, regenerate the rest of the
2707 * mipmap levels now.
2710 check_gen_mipmap(struct gl_context
*ctx
, GLenum target
,
2711 struct gl_texture_object
*texObj
, GLint level
)
2713 ASSERT(target
!= GL_TEXTURE_CUBE_MAP
);
2714 if (texObj
->GenerateMipmap
&&
2715 level
== texObj
->BaseLevel
&&
2716 level
< texObj
->MaxLevel
) {
2717 ASSERT(ctx
->Driver
.GenerateMipmap
);
2718 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2723 /** Debug helper: override the user-requested internal format */
2725 override_internal_format(GLenum internalFormat
, GLint width
, GLint height
)
2728 if (internalFormat
== GL_RGBA16F_ARB
||
2729 internalFormat
== GL_RGBA32F_ARB
) {
2730 printf("Convert rgba float tex to int %d x %d\n", width
, height
);
2733 else if (internalFormat
== GL_RGB16F_ARB
||
2734 internalFormat
== GL_RGB32F_ARB
) {
2735 printf("Convert rgb float tex to int %d x %d\n", width
, height
);
2738 else if (internalFormat
== GL_LUMINANCE_ALPHA16F_ARB
||
2739 internalFormat
== GL_LUMINANCE_ALPHA32F_ARB
) {
2740 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2741 return GL_LUMINANCE_ALPHA
;
2743 else if (internalFormat
== GL_LUMINANCE16F_ARB
||
2744 internalFormat
== GL_LUMINANCE32F_ARB
) {
2745 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2746 return GL_LUMINANCE
;
2748 else if (internalFormat
== GL_ALPHA16F_ARB
||
2749 internalFormat
== GL_ALPHA32F_ARB
) {
2750 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2754 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2755 internalFormat = GL_RGBA;
2759 return internalFormat
;
2762 return internalFormat
;
2768 * Choose the actual hardware format for a texture image.
2769 * Try to use the same format as the previous image level when possible.
2770 * Otherwise, ask the driver for the best format.
2771 * It's important to try to choose a consistant format for all levels
2772 * for efficient texture memory layout/allocation. In particular, this
2773 * comes up during automatic mipmap generation.
2776 _mesa_choose_texture_format(struct gl_context
*ctx
,
2777 struct gl_texture_object
*texObj
,
2778 GLenum target
, GLint level
,
2779 GLenum internalFormat
, GLenum format
, GLenum type
)
2783 /* see if we've already chosen a format for the previous level */
2785 struct gl_texture_image
*prevImage
=
2786 _mesa_select_tex_image(ctx
, texObj
, target
, level
- 1);
2787 /* See if the prev level is defined and has an internal format which
2788 * matches the new internal format.
2791 prevImage
->Width
> 0 &&
2792 prevImage
->InternalFormat
== internalFormat
) {
2793 /* use the same format */
2794 ASSERT(prevImage
->TexFormat
!= MESA_FORMAT_NONE
);
2795 return prevImage
->TexFormat
;
2799 /* choose format from scratch */
2800 f
= ctx
->Driver
.ChooseTextureFormat(ctx
, internalFormat
, format
, type
);
2801 ASSERT(f
!= MESA_FORMAT_NONE
);
2806 * Adjust pixel unpack params and image dimensions to strip off the
2807 * one-pixel texture border.
2809 * Gallium and intel don't support texture borders. They've seldem been used
2810 * and seldom been implemented correctly anyway.
2812 * \param unpackNew returns the new pixel unpack parameters
2815 strip_texture_border(GLenum target
,
2816 GLint
*width
, GLint
*height
, GLint
*depth
,
2817 const struct gl_pixelstore_attrib
*unpack
,
2818 struct gl_pixelstore_attrib
*unpackNew
)
2824 *unpackNew
= *unpack
;
2826 if (unpackNew
->RowLength
== 0)
2827 unpackNew
->RowLength
= *width
;
2829 if (unpackNew
->ImageHeight
== 0)
2830 unpackNew
->ImageHeight
= *height
;
2832 assert(*width
>= 3);
2833 unpackNew
->SkipPixels
++; /* skip the border */
2834 *width
= *width
- 2; /* reduce the width by two border pixels */
2836 /* The min height of a texture with a border is 3 */
2837 if (*height
>= 3 && target
!= GL_TEXTURE_1D_ARRAY
) {
2838 unpackNew
->SkipRows
++; /* skip the border */
2839 *height
= *height
- 2; /* reduce the height by two border pixels */
2842 if (*depth
>= 3 && target
!= GL_TEXTURE_2D_ARRAY
) {
2843 unpackNew
->SkipImages
++; /* skip the border */
2844 *depth
= *depth
- 2; /* reduce the depth by two border pixels */
2850 * Common code to implement all the glTexImage1D/2D/3D functions
2851 * as well as glCompressedTexImage1D/2D/3D.
2852 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls.
2853 * \param format the user's image format (only used if !compressed)
2854 * \param type the user's image type (only used if !compressed)
2855 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls.
2858 teximage(struct gl_context
*ctx
, GLboolean compressed
, GLuint dims
,
2859 GLenum target
, GLint level
, GLint internalFormat
,
2860 GLsizei width
, GLsizei height
, GLsizei depth
,
2861 GLint border
, GLenum format
, GLenum type
,
2862 GLsizei imageSize
, const GLvoid
*pixels
)
2864 const char *func
= compressed
? "glCompressedTexImage" : "glTexImage";
2866 struct gl_pixelstore_attrib unpack_no_border
;
2867 const struct gl_pixelstore_attrib
*unpack
= &ctx
->Unpack
;
2869 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2871 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
)) {
2874 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n",
2876 _mesa_lookup_enum_by_nr(target
), level
,
2877 _mesa_lookup_enum_by_nr(internalFormat
),
2878 width
, height
, depth
, border
, pixels
);
2881 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2883 _mesa_lookup_enum_by_nr(target
), level
,
2884 _mesa_lookup_enum_by_nr(internalFormat
),
2885 width
, height
, depth
, border
,
2886 _mesa_lookup_enum_by_nr(format
),
2887 _mesa_lookup_enum_by_nr(type
), pixels
);
2890 internalFormat
= override_internal_format(internalFormat
, width
, height
);
2892 /* target error checking */
2893 if (!legal_teximage_target(ctx
, dims
, target
)) {
2894 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s%uD(target=%s)",
2895 func
, dims
, _mesa_lookup_enum_by_nr(target
));
2899 /* general error checking */
2901 error
= compressed_texture_error_check(ctx
, dims
, target
, level
,
2903 width
, height
, depth
,
2907 error
= texture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2908 format
, type
, width
, height
, depth
, border
);
2912 /* Here we convert a cpal compressed image into a regular glTexImage2D
2913 * call by decompressing the texture. If we really want to support cpal
2914 * textures in any driver this would have to be changed.
2916 if (compressed
&& !error
&& dims
== 2) {
2917 switch (internalFormat
) {
2918 case GL_PALETTE4_RGB8_OES
:
2919 case GL_PALETTE4_RGBA8_OES
:
2920 case GL_PALETTE4_R5_G6_B5_OES
:
2921 case GL_PALETTE4_RGBA4_OES
:
2922 case GL_PALETTE4_RGB5_A1_OES
:
2923 case GL_PALETTE8_RGB8_OES
:
2924 case GL_PALETTE8_RGBA8_OES
:
2925 case GL_PALETTE8_R5_G6_B5_OES
:
2926 case GL_PALETTE8_RGBA4_OES
:
2927 case GL_PALETTE8_RGB5_A1_OES
:
2928 _mesa_cpal_compressed_teximage2d(target
, level
, internalFormat
,
2929 width
, height
, imageSize
, data
);
2935 if (_mesa_is_proxy_texture(target
)) {
2936 /* Proxy texture: just clear or set state depending on error checking */
2937 struct gl_texture_image
*texImage
=
2938 get_proxy_tex_image(ctx
, target
, level
);
2939 gl_format texFormat
= MESA_FORMAT_NONE
;
2942 /* No parameter errors. Choose a texture format and see if we
2943 * can really allocate the texture.
2945 struct gl_texture_object
*texObj
=
2946 _mesa_get_current_tex_object(ctx
, target
);
2947 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
2948 internalFormat
, format
, type
);
2949 if (!legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
2950 error
= PROXY_ERROR
;
2954 if (error
== PROXY_ERROR
) {
2955 /* image too large, etc. Clear all proxy texture image parameters. */
2957 clear_teximage_fields(texImage
);
2959 else if (error
== GL_FALSE
) {
2960 /* no error: store the teximage parameters */
2962 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, depth
,
2963 border
, internalFormat
, texFormat
);
2966 /* other, regular error (was already recorded) */
2970 /* non-proxy target */
2971 const GLuint face
= _mesa_tex_target_to_face(target
);
2972 struct gl_texture_object
*texObj
;
2973 struct gl_texture_image
*texImage
;
2976 return; /* error was recorded */
2979 /* Allow a hardware driver to just strip out the border, to provide
2980 * reliable but slightly incorrect hardware rendering instead of
2981 * rarely-tested software fallback rendering.
2983 if (border
&& ctx
->Const
.StripTextureBorder
) {
2984 strip_texture_border(target
, &width
, &height
, &depth
, unpack
,
2987 unpack
= &unpack_no_border
;
2990 if (ctx
->NewState
& _NEW_PIXEL
)
2991 _mesa_update_state(ctx
);
2993 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2995 _mesa_lock_texture(ctx
, texObj
);
2997 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3000 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s%uD", func
, dims
);
3003 gl_format texFormat
;
3005 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3007 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3008 internalFormat
, format
,
3011 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
3012 _mesa_init_teximage_fields(ctx
, texImage
,
3013 width
, height
, depth
,
3014 border
, internalFormat
, texFormat
);
3016 /* Give the texture to the driver. <pixels> may be null. */
3018 ctx
->Driver
.CompressedTexImage(ctx
, dims
, texImage
,
3022 ctx
->Driver
.TexImage(ctx
, dims
, texImage
, format
,
3023 type
, pixels
, unpack
);
3026 check_gen_mipmap(ctx
, target
, texObj
, level
);
3028 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3030 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3033 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s%uD", func
, dims
);
3037 _mesa_unlock_texture(ctx
, texObj
);
3043 * Called from the API. Note that width includes the border.
3046 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalFormat
,
3047 GLsizei width
, GLint border
, GLenum format
,
3048 GLenum type
, const GLvoid
*pixels
)
3050 GET_CURRENT_CONTEXT(ctx
);
3051 teximage(ctx
, GL_FALSE
, 1, target
, level
, internalFormat
, width
, 1, 1,
3052 border
, format
, type
, 0, pixels
);
3057 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalFormat
,
3058 GLsizei width
, GLsizei height
, GLint border
,
3059 GLenum format
, GLenum type
,
3060 const GLvoid
*pixels
)
3062 GET_CURRENT_CONTEXT(ctx
);
3063 teximage(ctx
, GL_FALSE
, 2, target
, level
, internalFormat
, width
, height
, 1,
3064 border
, format
, type
, 0, pixels
);
3069 * Called by the API or display list executor.
3070 * Note that width and height include the border.
3073 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalFormat
,
3074 GLsizei width
, GLsizei height
, GLsizei depth
,
3075 GLint border
, GLenum format
, GLenum type
,
3076 const GLvoid
*pixels
)
3078 GET_CURRENT_CONTEXT(ctx
);
3079 teximage(ctx
, GL_FALSE
, 3, target
, level
, internalFormat
,
3080 width
, height
, depth
,
3081 border
, format
, type
, 0, pixels
);
3086 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalFormat
,
3087 GLsizei width
, GLsizei height
, GLsizei depth
,
3088 GLint border
, GLenum format
, GLenum type
,
3089 const GLvoid
*pixels
)
3091 _mesa_TexImage3D(target
, level
, (GLint
) internalFormat
, width
, height
,
3092 depth
, border
, format
, type
, pixels
);
3096 #if FEATURE_OES_EGL_image
3098 _mesa_EGLImageTargetTexture2DOES (GLenum target
, GLeglImageOES image
)
3100 struct gl_texture_object
*texObj
;
3101 struct gl_texture_image
*texImage
;
3103 GET_CURRENT_CONTEXT(ctx
);
3104 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3108 valid_target
= ctx
->Extensions
.OES_EGL_image
;
3110 case GL_TEXTURE_EXTERNAL_OES
:
3111 valid_target
= ctx
->Extensions
.OES_EGL_image_external
;
3114 valid_target
= false;
3118 if (!valid_target
) {
3119 _mesa_error(ctx
, GL_INVALID_ENUM
,
3120 "glEGLImageTargetTexture2D(target=%d)", target
);
3124 if (ctx
->NewState
& _NEW_PIXEL
)
3125 _mesa_update_state(ctx
);
3127 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3128 _mesa_lock_texture(ctx
, texObj
);
3130 if (texObj
->Immutable
) {
3131 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3132 "glEGLImageTargetTexture2D(texture is immutable)");
3133 _mesa_unlock_texture(ctx
, texObj
);
3137 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
3139 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glEGLImageTargetTexture2D");
3141 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3143 ctx
->Driver
.EGLImageTargetTexture2D(ctx
, target
,
3144 texObj
, texImage
, image
);
3146 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3148 _mesa_unlock_texture(ctx
, texObj
);
3156 * Implement all the glTexSubImage1/2/3D() functions.
3159 texsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3160 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3161 GLsizei width
, GLsizei height
, GLsizei depth
,
3162 GLenum format
, GLenum type
, const GLvoid
*pixels
)
3164 struct gl_texture_object
*texObj
;
3165 struct gl_texture_image
*texImage
;
3167 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3169 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3170 _mesa_debug(ctx
, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
3172 _mesa_lookup_enum_by_nr(target
), level
,
3173 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3174 _mesa_lookup_enum_by_nr(format
),
3175 _mesa_lookup_enum_by_nr(type
), pixels
);
3177 /* check target (proxies not allowed) */
3178 if (!legal_texsubimage_target(ctx
, dims
, target
)) {
3179 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
3180 dims
, _mesa_lookup_enum_by_nr(target
));
3184 if (ctx
->NewState
& _NEW_PIXEL
)
3185 _mesa_update_state(ctx
);
3187 if (subtexture_error_check(ctx
, dims
, target
, level
, xoffset
, yoffset
, zoffset
,
3188 width
, height
, depth
, format
, type
)) {
3189 return; /* error was detected */
3192 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3194 _mesa_lock_texture(ctx
, texObj
);
3196 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3198 if (subtexture_error_check2(ctx
, dims
, target
, level
,
3199 xoffset
, yoffset
, zoffset
,
3200 width
, height
, depth
,
3201 format
, type
, texImage
)) {
3202 /* error was recorded */
3204 else if (width
> 0 && height
> 0 && depth
> 0) {
3205 /* If we have a border, offset=-1 is legal. Bias by border width. */
3208 if (target
!= GL_TEXTURE_2D_ARRAY
)
3209 zoffset
+= texImage
->Border
;
3212 if (target
!= GL_TEXTURE_1D_ARRAY
)
3213 yoffset
+= texImage
->Border
;
3216 xoffset
+= texImage
->Border
;
3219 ctx
->Driver
.TexSubImage(ctx
, dims
, texImage
,
3220 xoffset
, yoffset
, zoffset
,
3221 width
, height
, depth
,
3222 format
, type
, pixels
, &ctx
->Unpack
);
3224 check_gen_mipmap(ctx
, target
, texObj
, level
);
3226 ctx
->NewState
|= _NEW_TEXTURE
;
3229 _mesa_unlock_texture(ctx
, texObj
);
3234 _mesa_TexSubImage1D( GLenum target
, GLint level
,
3235 GLint xoffset
, GLsizei width
,
3236 GLenum format
, GLenum type
,
3237 const GLvoid
*pixels
)
3239 GET_CURRENT_CONTEXT(ctx
);
3240 texsubimage(ctx
, 1, target
, level
,
3243 format
, type
, pixels
);
3248 _mesa_TexSubImage2D( GLenum target
, GLint level
,
3249 GLint xoffset
, GLint yoffset
,
3250 GLsizei width
, GLsizei height
,
3251 GLenum format
, GLenum type
,
3252 const GLvoid
*pixels
)
3254 GET_CURRENT_CONTEXT(ctx
);
3255 texsubimage(ctx
, 2, target
, level
,
3256 xoffset
, yoffset
, 0,
3258 format
, type
, pixels
);
3264 _mesa_TexSubImage3D( GLenum target
, GLint level
,
3265 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3266 GLsizei width
, GLsizei height
, GLsizei depth
,
3267 GLenum format
, GLenum type
,
3268 const GLvoid
*pixels
)
3270 GET_CURRENT_CONTEXT(ctx
);
3271 texsubimage(ctx
, 3, target
, level
,
3272 xoffset
, yoffset
, zoffset
,
3273 width
, height
, depth
,
3274 format
, type
, pixels
);
3280 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3281 * from. This depends on whether the texture contains color or depth values.
3283 static struct gl_renderbuffer
*
3284 get_copy_tex_image_source(struct gl_context
*ctx
, gl_format texFormat
)
3286 if (_mesa_get_format_bits(texFormat
, GL_DEPTH_BITS
) > 0) {
3287 /* reading from depth/stencil buffer */
3288 return ctx
->ReadBuffer
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
3291 /* copying from color buffer */
3292 return ctx
->ReadBuffer
->_ColorReadBuffer
;
3299 * Implement the glCopyTexImage1/2D() functions.
3302 copyteximage(struct gl_context
*ctx
, GLuint dims
,
3303 GLenum target
, GLint level
, GLenum internalFormat
,
3304 GLint x
, GLint y
, GLsizei width
, GLsizei height
, GLint border
)
3306 struct gl_texture_object
*texObj
;
3307 struct gl_texture_image
*texImage
;
3308 const GLuint face
= _mesa_tex_target_to_face(target
);
3310 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3312 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3313 _mesa_debug(ctx
, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3315 _mesa_lookup_enum_by_nr(target
), level
,
3316 _mesa_lookup_enum_by_nr(internalFormat
),
3317 x
, y
, width
, height
, border
);
3319 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3320 _mesa_update_state(ctx
);
3322 if (copytexture_error_check(ctx
, dims
, target
, level
, internalFormat
,
3323 width
, height
, border
))
3326 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3328 if (border
&& ctx
->Const
.StripTextureBorder
) {
3330 width
-= border
* 2;
3333 height
-= border
* 2;
3338 _mesa_lock_texture(ctx
, texObj
);
3340 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3343 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
3346 /* choose actual hw format */
3347 gl_format texFormat
= _mesa_choose_texture_format(ctx
, texObj
,
3352 if (legal_texture_size(ctx
, texFormat
, width
, height
, 1)) {
3353 GLint srcX
= x
, srcY
= y
, dstX
= 0, dstY
= 0, dstZ
= 0;
3355 /* Free old texture image */
3356 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3358 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, 1,
3359 border
, internalFormat
, texFormat
);
3361 /* Allocate texture memory (no pixel data yet) */
3362 ctx
->Driver
.TexImage(ctx
, dims
, texImage
,
3364 NULL
, &ctx
->Unpack
);
3366 if (_mesa_clip_copytexsubimage(ctx
, &dstX
, &dstY
, &srcX
, &srcY
,
3368 struct gl_renderbuffer
*srcRb
=
3369 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3371 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
, dstX
, dstY
, dstZ
,
3372 srcRb
, srcX
, srcY
, width
, height
);
3375 check_gen_mipmap(ctx
, target
, texObj
, level
);
3377 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3379 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3382 /* probably too large of image */
3383 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
3387 _mesa_unlock_texture(ctx
, texObj
);
3393 _mesa_CopyTexImage1D( GLenum target
, GLint level
,
3394 GLenum internalFormat
,
3396 GLsizei width
, GLint border
)
3398 GET_CURRENT_CONTEXT(ctx
);
3399 copyteximage(ctx
, 1, target
, level
, internalFormat
, x
, y
, width
, 1, border
);
3405 _mesa_CopyTexImage2D( GLenum target
, GLint level
, GLenum internalFormat
,
3406 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
3409 GET_CURRENT_CONTEXT(ctx
);
3410 copyteximage(ctx
, 2, target
, level
, internalFormat
,
3411 x
, y
, width
, height
, border
);
3417 * Implementation for glCopyTexSubImage1/2/3D() functions.
3420 copytexsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3421 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3422 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3424 struct gl_texture_object
*texObj
;
3425 struct gl_texture_image
*texImage
;
3427 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3429 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3430 _mesa_debug(ctx
, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
3432 _mesa_lookup_enum_by_nr(target
),
3433 level
, xoffset
, yoffset
, zoffset
, x
, y
, width
, height
);
3435 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3436 _mesa_update_state(ctx
);
3438 if (copytexsubimage_error_check1(ctx
, dims
, target
, level
))
3441 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3443 _mesa_lock_texture(ctx
, texObj
);
3445 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3447 if (copytexsubimage_error_check2(ctx
, dims
, target
, level
, xoffset
, yoffset
,
3448 zoffset
, width
, height
, texImage
)) {
3449 /* error was recored */
3452 /* If we have a border, offset=-1 is legal. Bias by border width. */
3455 if (target
!= GL_TEXTURE_2D_ARRAY
)
3456 zoffset
+= texImage
->Border
;
3459 if (target
!= GL_TEXTURE_1D_ARRAY
)
3460 yoffset
+= texImage
->Border
;
3463 xoffset
+= texImage
->Border
;
3466 if (_mesa_clip_copytexsubimage(ctx
, &xoffset
, &yoffset
, &x
, &y
,
3468 struct gl_renderbuffer
*srcRb
=
3469 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3471 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
,
3472 xoffset
, yoffset
, zoffset
,
3473 srcRb
, x
, y
, width
, height
);
3475 check_gen_mipmap(ctx
, target
, texObj
, level
);
3477 ctx
->NewState
|= _NEW_TEXTURE
;
3481 _mesa_unlock_texture(ctx
, texObj
);
3486 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
,
3487 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
3489 GET_CURRENT_CONTEXT(ctx
);
3490 copytexsubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, x
, y
, width
, 1);
3496 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
3497 GLint xoffset
, GLint yoffset
,
3498 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3500 GET_CURRENT_CONTEXT(ctx
);
3501 copytexsubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0, x
, y
,
3508 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
3509 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3510 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3512 GET_CURRENT_CONTEXT(ctx
);
3513 copytexsubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
3514 x
, y
, width
, height
);
3520 /**********************************************************************/
3521 /****** Compressed Textures ******/
3522 /**********************************************************************/
3526 * Error checking for glCompressedTexSubImage[123]D().
3527 * \warning There are some bad assumptions here about the size of compressed
3528 * texture tiles (multiple of 4) used to test the validity of the
3529 * offset and size parameters.
3530 * \return error code or GL_NO_ERROR.
3533 compressed_subtexture_error_check(struct gl_context
*ctx
, GLint dimensions
,
3534 GLenum target
, GLint level
,
3535 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3536 GLsizei width
, GLsizei height
, GLsizei depth
,
3537 GLenum format
, GLsizei imageSize
)
3539 GLint expectedSize
, maxLevels
= 0, maxTextureSize
;
3543 if (dimensions
== 1) {
3544 /* 1D compressed textures not allowed */
3545 return GL_INVALID_ENUM
;
3547 else if (dimensions
== 2) {
3548 if (target
== GL_PROXY_TEXTURE_2D
) {
3549 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3551 else if (target
== GL_TEXTURE_2D
) {
3552 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3554 else if (target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
) {
3555 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3556 return GL_INVALID_ENUM
; /*target*/
3557 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3559 else if (_mesa_is_cube_face(target
)) {
3560 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3561 return GL_INVALID_ENUM
; /*target*/
3562 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3565 return GL_INVALID_ENUM
; /*target*/
3568 else if (dimensions
== 3) {
3569 /* 3D compressed textures not allowed */
3570 return GL_INVALID_ENUM
;
3573 maxTextureSize
= 1 << (maxLevels
- 1);
3575 /* this will catch any invalid compressed format token */
3576 if (!_mesa_is_compressed_format(ctx
, format
))
3577 return GL_INVALID_ENUM
;
3579 if (width
< 1 || width
> maxTextureSize
)
3580 return GL_INVALID_VALUE
;
3582 if ((height
< 1 || height
> maxTextureSize
)
3584 return GL_INVALID_VALUE
;
3586 if (level
< 0 || level
>= maxLevels
)
3587 return GL_INVALID_VALUE
;
3590 * do checks which depend on compression block size
3592 get_compressed_block_size(format
, &bw
, &bh
);
3594 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0))
3595 return GL_INVALID_VALUE
;
3597 if ((width
% bw
!= 0) && width
!= 2 && width
!= 1)
3598 return GL_INVALID_VALUE
;
3600 if ((height
% bh
!= 0) && height
!= 2 && height
!= 1)
3601 return GL_INVALID_VALUE
;
3603 expectedSize
= compressed_tex_size(width
, height
, depth
, format
);
3604 if (expectedSize
!= imageSize
)
3605 return GL_INVALID_VALUE
;
3612 * Do second part of glCompressedTexSubImage error checking.
3613 * \return GL_TRUE if error found, GL_FALSE otherwise.
3616 compressed_subtexture_error_check2(struct gl_context
*ctx
, GLuint dims
,
3617 GLsizei width
, GLsizei height
,
3618 GLsizei depth
, GLenum format
,
3619 struct gl_texture_image
*texImage
)
3622 if ((GLint
) format
!= texImage
->InternalFormat
) {
3623 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3624 "glCompressedTexSubImage%uD(format=0x%x)", dims
, format
);
3628 if (compressedteximage_only_format(ctx
, format
)) {
3629 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3630 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)"
3635 if (((width
== 1 || width
== 2) &&
3636 width
!= (GLsizei
) texImage
->Width
) ||
3637 (width
> (GLsizei
) texImage
->Width
)) {
3638 _mesa_error(ctx
, GL_INVALID_VALUE
,
3639 "glCompressedTexSubImage%uD(width=%d)", dims
, width
);
3644 if (((height
== 1 || height
== 2) &&
3645 height
!= (GLsizei
) texImage
->Height
) ||
3646 (height
> (GLsizei
) texImage
->Height
)) {
3647 _mesa_error(ctx
, GL_INVALID_VALUE
,
3648 "glCompressedTexSubImage%uD(height=%d)", dims
, height
);
3654 if (((depth
== 1 || depth
== 2) &&
3655 depth
!= (GLsizei
) texImage
->Depth
) ||
3656 (depth
> (GLsizei
) texImage
->Depth
)) {
3657 _mesa_error(ctx
, GL_INVALID_VALUE
,
3658 "glCompressedTexSubImage%uD(depth=%d)", dims
, depth
);
3668 _mesa_CompressedTexImage1DARB(GLenum target
, GLint level
,
3669 GLenum internalFormat
, GLsizei width
,
3670 GLint border
, GLsizei imageSize
,
3673 GET_CURRENT_CONTEXT(ctx
);
3674 teximage(ctx
, GL_TRUE
, 1, target
, level
, internalFormat
,
3675 width
, 1, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3680 _mesa_CompressedTexImage2DARB(GLenum target
, GLint level
,
3681 GLenum internalFormat
, GLsizei width
,
3682 GLsizei height
, GLint border
, GLsizei imageSize
,
3685 GET_CURRENT_CONTEXT(ctx
);
3686 teximage(ctx
, GL_TRUE
, 2, target
, level
, internalFormat
,
3687 width
, height
, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3692 _mesa_CompressedTexImage3DARB(GLenum target
, GLint level
,
3693 GLenum internalFormat
, GLsizei width
,
3694 GLsizei height
, GLsizei depth
, GLint border
,
3695 GLsizei imageSize
, const GLvoid
*data
)
3697 GET_CURRENT_CONTEXT(ctx
);
3698 teximage(ctx
, GL_TRUE
, 3, target
, level
, internalFormat
,
3699 width
, height
, depth
, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3704 * Common helper for glCompressedTexSubImage1/2/3D().
3707 compressed_tex_sub_image(GLuint dims
, GLenum target
, GLint level
,
3708 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3709 GLsizei width
, GLsizei height
, GLsizei depth
,
3710 GLenum format
, GLsizei imageSize
, const GLvoid
*data
)
3712 struct gl_texture_object
*texObj
;
3713 struct gl_texture_image
*texImage
;
3715 GET_CURRENT_CONTEXT(ctx
);
3716 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3718 error
= compressed_subtexture_error_check(ctx
, dims
, target
, level
,
3719 xoffset
, 0, 0, /* pos */
3720 width
, height
, depth
, /* size */
3723 _mesa_error(ctx
, error
, "glCompressedTexSubImage%uD", dims
);
3727 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3729 _mesa_lock_texture(ctx
, texObj
);
3731 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3734 if (compressed_subtexture_error_check2(ctx
, dims
, width
, height
, depth
,
3735 format
, texImage
)) {
3736 /* error was recorded */
3738 else if (width
> 0 && height
> 0 && depth
> 0) {
3739 ctx
->Driver
.CompressedTexSubImage(ctx
, dims
, texImage
,
3740 xoffset
, yoffset
, zoffset
,
3741 width
, height
, depth
,
3742 format
, imageSize
, data
);
3744 check_gen_mipmap(ctx
, target
, texObj
, level
);
3746 ctx
->NewState
|= _NEW_TEXTURE
;
3749 _mesa_unlock_texture(ctx
, texObj
);
3754 _mesa_CompressedTexSubImage1DARB(GLenum target
, GLint level
, GLint xoffset
,
3755 GLsizei width
, GLenum format
,
3756 GLsizei imageSize
, const GLvoid
*data
)
3758 compressed_tex_sub_image(1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
3759 format
, imageSize
, data
);
3764 _mesa_CompressedTexSubImage2DARB(GLenum target
, GLint level
, GLint xoffset
,
3765 GLint yoffset
, GLsizei width
, GLsizei height
,
3766 GLenum format
, GLsizei imageSize
,
3769 compressed_tex_sub_image(2, target
, level
, xoffset
, yoffset
, 0,
3770 width
, height
, 1, format
, imageSize
, data
);
3775 _mesa_CompressedTexSubImage3DARB(GLenum target
, GLint level
, GLint xoffset
,
3776 GLint yoffset
, GLint zoffset
, GLsizei width
,
3777 GLsizei height
, GLsizei depth
, GLenum format
,
3778 GLsizei imageSize
, const GLvoid
*data
)
3780 compressed_tex_sub_image(3, target
, level
, xoffset
, yoffset
, zoffset
,
3781 width
, height
, depth
, format
, imageSize
, data
);
3785 get_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3787 switch (internalFormat
) {
3789 return MESA_FORMAT_A8
;
3791 return MESA_FORMAT_A16
;
3792 case GL_ALPHA16F_ARB
:
3793 return MESA_FORMAT_ALPHA_FLOAT16
;
3794 case GL_ALPHA32F_ARB
:
3795 return MESA_FORMAT_ALPHA_FLOAT32
;
3796 case GL_ALPHA8I_EXT
:
3797 return MESA_FORMAT_ALPHA_INT8
;
3798 case GL_ALPHA16I_EXT
:
3799 return MESA_FORMAT_ALPHA_INT16
;
3800 case GL_ALPHA32I_EXT
:
3801 return MESA_FORMAT_ALPHA_INT32
;
3802 case GL_ALPHA8UI_EXT
:
3803 return MESA_FORMAT_ALPHA_UINT8
;
3804 case GL_ALPHA16UI_EXT
:
3805 return MESA_FORMAT_ALPHA_UINT16
;
3806 case GL_ALPHA32UI_EXT
:
3807 return MESA_FORMAT_ALPHA_UINT32
;
3809 return MESA_FORMAT_L8
;
3810 case GL_LUMINANCE16
:
3811 return MESA_FORMAT_L16
;
3812 case GL_LUMINANCE16F_ARB
:
3813 return MESA_FORMAT_LUMINANCE_FLOAT16
;
3814 case GL_LUMINANCE32F_ARB
:
3815 return MESA_FORMAT_LUMINANCE_FLOAT32
;
3816 case GL_LUMINANCE8I_EXT
:
3817 return MESA_FORMAT_LUMINANCE_INT8
;
3818 case GL_LUMINANCE16I_EXT
:
3819 return MESA_FORMAT_LUMINANCE_INT16
;
3820 case GL_LUMINANCE32I_EXT
:
3821 return MESA_FORMAT_LUMINANCE_INT32
;
3822 case GL_LUMINANCE8UI_EXT
:
3823 return MESA_FORMAT_LUMINANCE_UINT8
;
3824 case GL_LUMINANCE16UI_EXT
:
3825 return MESA_FORMAT_LUMINANCE_UINT16
;
3826 case GL_LUMINANCE32UI_EXT
:
3827 return MESA_FORMAT_LUMINANCE_UINT32
;
3828 case GL_LUMINANCE8_ALPHA8
:
3829 return MESA_FORMAT_AL88
;
3830 case GL_LUMINANCE16_ALPHA16
:
3831 return MESA_FORMAT_AL1616
;
3832 case GL_LUMINANCE_ALPHA16F_ARB
:
3833 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
;
3834 case GL_LUMINANCE_ALPHA32F_ARB
:
3835 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
;
3836 case GL_LUMINANCE_ALPHA8I_EXT
:
3837 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3838 case GL_LUMINANCE_ALPHA16I_EXT
:
3839 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3840 case GL_LUMINANCE_ALPHA32I_EXT
:
3841 return MESA_FORMAT_LUMINANCE_ALPHA_INT16
;
3842 case GL_LUMINANCE_ALPHA8UI_EXT
:
3843 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8
;
3844 case GL_LUMINANCE_ALPHA16UI_EXT
:
3845 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16
;
3846 case GL_LUMINANCE_ALPHA32UI_EXT
:
3847 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32
;
3849 return MESA_FORMAT_I8
;
3850 case GL_INTENSITY16
:
3851 return MESA_FORMAT_I16
;
3852 case GL_INTENSITY16F_ARB
:
3853 return MESA_FORMAT_INTENSITY_FLOAT16
;
3854 case GL_INTENSITY32F_ARB
:
3855 return MESA_FORMAT_INTENSITY_FLOAT32
;
3856 case GL_INTENSITY8I_EXT
:
3857 return MESA_FORMAT_INTENSITY_INT8
;
3858 case GL_INTENSITY16I_EXT
:
3859 return MESA_FORMAT_INTENSITY_INT16
;
3860 case GL_INTENSITY32I_EXT
:
3861 return MESA_FORMAT_INTENSITY_INT32
;
3862 case GL_INTENSITY8UI_EXT
:
3863 return MESA_FORMAT_INTENSITY_UINT8
;
3864 case GL_INTENSITY16UI_EXT
:
3865 return MESA_FORMAT_INTENSITY_UINT16
;
3866 case GL_INTENSITY32UI_EXT
:
3867 return MESA_FORMAT_INTENSITY_UINT32
;
3869 return MESA_FORMAT_RGBA8888_REV
;
3871 return MESA_FORMAT_RGBA_16
;
3872 case GL_RGBA16F_ARB
:
3873 return MESA_FORMAT_RGBA_FLOAT16
;
3874 case GL_RGBA32F_ARB
:
3875 return MESA_FORMAT_RGBA_FLOAT32
;
3877 return MESA_FORMAT_RGBA_INT8
;
3878 case GL_RGBA16I_EXT
:
3879 return MESA_FORMAT_RGBA_INT16
;
3880 case GL_RGBA32I_EXT
:
3881 return MESA_FORMAT_RGBA_INT32
;
3882 case GL_RGBA8UI_EXT
:
3883 return MESA_FORMAT_RGBA_UINT8
;
3884 case GL_RGBA16UI_EXT
:
3885 return MESA_FORMAT_RGBA_UINT16
;
3886 case GL_RGBA32UI_EXT
:
3887 return MESA_FORMAT_RGBA_UINT32
;
3890 return MESA_FORMAT_GR88
;
3892 return MESA_FORMAT_RG1616
;
3894 return MESA_FORMAT_RG_FLOAT16
;
3896 return MESA_FORMAT_RG_FLOAT32
;
3898 return MESA_FORMAT_RG_INT8
;
3900 return MESA_FORMAT_RG_INT16
;
3902 return MESA_FORMAT_RG_INT32
;
3904 return MESA_FORMAT_RG_UINT8
;
3906 return MESA_FORMAT_RG_UINT16
;
3908 return MESA_FORMAT_RG_UINT32
;
3911 return MESA_FORMAT_R8
;
3913 return MESA_FORMAT_R16
;
3915 return MESA_FORMAT_R_FLOAT16
;
3917 return MESA_FORMAT_R_FLOAT32
;
3919 return MESA_FORMAT_R_INT8
;
3921 return MESA_FORMAT_R_INT16
;
3923 return MESA_FORMAT_R_INT32
;
3925 return MESA_FORMAT_R_UINT8
;
3927 return MESA_FORMAT_R_UINT16
;
3929 return MESA_FORMAT_R_UINT32
;
3932 return MESA_FORMAT_NONE
;
3937 validate_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3939 gl_format format
= get_texbuffer_format(ctx
, internalFormat
);
3942 if (format
== MESA_FORMAT_NONE
)
3943 return MESA_FORMAT_NONE
;
3945 datatype
= _mesa_get_format_datatype(format
);
3946 if (datatype
== GL_FLOAT
&& !ctx
->Extensions
.ARB_texture_float
)
3947 return MESA_FORMAT_NONE
;
3949 if (datatype
== GL_HALF_FLOAT
&& !ctx
->Extensions
.ARB_half_float_pixel
)
3950 return MESA_FORMAT_NONE
;
3952 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make
3953 * any mention of R/RG formats, but they appear in the GL 3.1 core
3956 if (ctx
->Version
<= 30) {
3957 GLenum base_format
= _mesa_get_format_base_format(format
);
3959 if (base_format
== GL_R
|| base_format
== GL_RG
)
3960 return MESA_FORMAT_NONE
;
3966 /** GL_ARB_texture_buffer_object */
3968 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
)
3970 struct gl_texture_object
*texObj
;
3971 struct gl_buffer_object
*bufObj
;
3974 GET_CURRENT_CONTEXT(ctx
);
3975 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3977 if (!ctx
->Extensions
.ARB_texture_buffer_object
) {
3978 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer");
3982 if (target
!= GL_TEXTURE_BUFFER_ARB
) {
3983 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(target)");
3987 format
= validate_texbuffer_format(ctx
, internalFormat
);
3988 if (format
== MESA_FORMAT_NONE
) {
3989 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(internalFormat 0x%x)",
3994 bufObj
= _mesa_lookup_bufferobj(ctx
, buffer
);
3995 if (buffer
&& !bufObj
) {
3996 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer(buffer %u)", buffer
);
4000 texObj
= _mesa_get_current_tex_object(ctx
, target
);
4002 _mesa_lock_texture(ctx
, texObj
);
4004 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, bufObj
);
4005 texObj
->BufferObjectFormat
= internalFormat
;
4006 texObj
->_BufferObjectFormat
= format
;
4008 _mesa_unlock_texture(ctx
, texObj
);