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
) {
90 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_ALPHA
: -1;
97 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_LUMINANCE
: -1;
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 (ctx
->API
!= API_OPENGL_CORE
) ? GL_LUMINANCE_ALPHA
: -1;
112 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_INTENSITY
: -1;
114 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_RGB
: -1;
125 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_RGBA
: -1;
139 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
141 if (_mesa_is_gles(ctx
)) {
142 switch (internalFormat
) {
150 if (ctx
->Extensions
.ARB_ES2_compatibility
) {
151 switch (internalFormat
) {
159 if (ctx
->Extensions
.ARB_depth_texture
) {
160 switch (internalFormat
) {
161 case GL_DEPTH_COMPONENT
:
162 case GL_DEPTH_COMPONENT16
:
163 case GL_DEPTH_COMPONENT24
:
164 case GL_DEPTH_COMPONENT32
:
165 return GL_DEPTH_COMPONENT
;
171 switch (internalFormat
) {
172 case GL_COMPRESSED_ALPHA
:
174 case GL_COMPRESSED_LUMINANCE
:
176 case GL_COMPRESSED_LUMINANCE_ALPHA
:
177 return GL_LUMINANCE_ALPHA
;
178 case GL_COMPRESSED_INTENSITY
:
180 case GL_COMPRESSED_RGB
:
182 case GL_COMPRESSED_RGBA
:
188 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
) {
189 switch (internalFormat
) {
190 case GL_COMPRESSED_RGB_FXT1_3DFX
:
192 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
199 if (ctx
->Extensions
.EXT_texture_compression_s3tc
) {
200 switch (internalFormat
) {
201 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
203 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
204 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
205 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
212 if (ctx
->Extensions
.S3_s3tc
) {
213 switch (internalFormat
) {
225 if (ctx
->Extensions
.MESA_ycbcr_texture
) {
226 if (internalFormat
== GL_YCBCR_MESA
)
227 return GL_YCBCR_MESA
;
230 if (ctx
->Extensions
.ARB_texture_float
) {
231 switch (internalFormat
) {
232 case GL_ALPHA16F_ARB
:
233 case GL_ALPHA32F_ARB
:
241 case GL_INTENSITY16F_ARB
:
242 case GL_INTENSITY32F_ARB
:
244 case GL_LUMINANCE16F_ARB
:
245 case GL_LUMINANCE32F_ARB
:
247 case GL_LUMINANCE_ALPHA16F_ARB
:
248 case GL_LUMINANCE_ALPHA32F_ARB
:
249 return GL_LUMINANCE_ALPHA
;
255 if (ctx
->Extensions
.ATI_envmap_bumpmap
) {
256 switch (internalFormat
) {
265 if (ctx
->Extensions
.EXT_texture_snorm
) {
266 switch (internalFormat
) {
281 case GL_RGBA16_SNORM
:
284 case GL_ALPHA8_SNORM
:
285 case GL_ALPHA16_SNORM
:
287 case GL_LUMINANCE_SNORM
:
288 case GL_LUMINANCE8_SNORM
:
289 case GL_LUMINANCE16_SNORM
:
291 case GL_LUMINANCE_ALPHA_SNORM
:
292 case GL_LUMINANCE8_ALPHA8_SNORM
:
293 case GL_LUMINANCE16_ALPHA16_SNORM
:
294 return GL_LUMINANCE_ALPHA
;
295 case GL_INTENSITY_SNORM
:
296 case GL_INTENSITY8_SNORM
:
297 case GL_INTENSITY16_SNORM
:
304 if (ctx
->Extensions
.EXT_packed_depth_stencil
) {
305 switch (internalFormat
) {
306 case GL_DEPTH_STENCIL_EXT
:
307 case GL_DEPTH24_STENCIL8_EXT
:
308 return GL_DEPTH_STENCIL_EXT
;
314 if (ctx
->Extensions
.EXT_texture_sRGB
) {
315 switch (internalFormat
) {
318 case GL_COMPRESSED_SRGB_EXT
:
319 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
321 case GL_SRGB_ALPHA_EXT
:
322 case GL_SRGB8_ALPHA8_EXT
:
323 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
324 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
325 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
326 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
328 case GL_SLUMINANCE_ALPHA_EXT
:
329 case GL_SLUMINANCE8_ALPHA8_EXT
:
330 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
331 return GL_LUMINANCE_ALPHA
;
332 case GL_SLUMINANCE_EXT
:
333 case GL_SLUMINANCE8_EXT
:
334 case GL_COMPRESSED_SLUMINANCE_EXT
:
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 _mesa_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 _mesa_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 _mesa_is_desktop_gl(ctx
)
758 && ctx
->Extensions
.ARB_texture_buffer_object
759 ? texUnit
->CurrentTex
[TEXTURE_BUFFER_INDEX
] : NULL
;
760 case GL_TEXTURE_EXTERNAL_OES
:
761 return ctx
->Extensions
.OES_EGL_image_external
762 ? texUnit
->CurrentTex
[TEXTURE_EXTERNAL_INDEX
] : NULL
;
764 _mesa_problem(NULL
, "bad target in _mesa_select_tex_object()");
771 * Return pointer to texture object for given target on current texture unit.
773 struct gl_texture_object
*
774 _mesa_get_current_tex_object(struct gl_context
*ctx
, GLenum target
)
776 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
777 return _mesa_select_tex_object(ctx
, texUnit
, target
);
782 * Get a texture image pointer from a texture object, given a texture
783 * target and mipmap level. The target and level parameters should
784 * have already been error-checked.
786 * \param ctx GL context.
787 * \param texObj texture unit.
788 * \param target texture target.
789 * \param level image level.
791 * \return pointer to the texture image structure, or NULL on failure.
793 struct gl_texture_image
*
794 _mesa_select_tex_image(struct gl_context
*ctx
,
795 const struct gl_texture_object
*texObj
,
796 GLenum target
, GLint level
)
798 const GLuint face
= _mesa_tex_target_to_face(target
);
802 ASSERT(level
< MAX_TEXTURE_LEVELS
);
804 return texObj
->Image
[face
][level
];
809 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
810 * it and install it. Only return NULL if passed a bad parameter or run
813 struct gl_texture_image
*
814 _mesa_get_tex_image(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
815 GLenum target
, GLint level
)
817 struct gl_texture_image
*texImage
;
822 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
824 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
826 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "texture image allocation");
830 set_tex_image(texObj
, target
, level
, texImage
);
838 * Return pointer to the specified proxy texture image.
839 * Note that proxy textures are per-context, not per-texture unit.
840 * \return pointer to texture image or NULL if invalid target, invalid
841 * level, or out of memory.
843 static struct gl_texture_image
*
844 get_proxy_tex_image(struct gl_context
*ctx
, GLenum target
, GLint level
)
846 struct gl_texture_image
*texImage
;
853 case GL_PROXY_TEXTURE_1D
:
854 if (level
>= ctx
->Const
.MaxTextureLevels
)
856 texIndex
= TEXTURE_1D_INDEX
;
858 case GL_PROXY_TEXTURE_2D
:
859 if (level
>= ctx
->Const
.MaxTextureLevels
)
861 texIndex
= TEXTURE_2D_INDEX
;
863 case GL_PROXY_TEXTURE_3D
:
864 if (level
>= ctx
->Const
.Max3DTextureLevels
)
866 texIndex
= TEXTURE_3D_INDEX
;
868 case GL_PROXY_TEXTURE_CUBE_MAP
:
869 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
871 texIndex
= TEXTURE_CUBE_INDEX
;
873 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
876 texIndex
= TEXTURE_RECT_INDEX
;
878 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
879 if (level
>= ctx
->Const
.MaxTextureLevels
)
881 texIndex
= TEXTURE_1D_ARRAY_INDEX
;
883 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
884 if (level
>= ctx
->Const
.MaxTextureLevels
)
886 texIndex
= TEXTURE_2D_ARRAY_INDEX
;
892 texImage
= ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
];
894 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
896 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "proxy texture allocation");
899 ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
] = texImage
;
900 /* Set the 'back' pointer */
901 texImage
->TexObject
= ctx
->Texture
.ProxyTex
[texIndex
];
908 * Get the maximum number of allowed mipmap levels.
910 * \param ctx GL context.
911 * \param target texture target.
913 * \return the maximum number of allowed mipmap levels for the given
914 * texture target, or zero if passed a bad target.
919 _mesa_max_texture_levels(struct gl_context
*ctx
, GLenum target
)
923 case GL_PROXY_TEXTURE_1D
:
925 case GL_PROXY_TEXTURE_2D
:
926 return ctx
->Const
.MaxTextureLevels
;
928 case GL_PROXY_TEXTURE_3D
:
929 return ctx
->Const
.Max3DTextureLevels
;
930 case GL_TEXTURE_CUBE_MAP
:
931 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
932 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
933 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
934 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
935 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
936 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
937 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
938 return ctx
->Extensions
.ARB_texture_cube_map
939 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
940 case GL_TEXTURE_RECTANGLE_NV
:
941 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
942 return ctx
->Extensions
.NV_texture_rectangle
? 1 : 0;
943 case GL_TEXTURE_1D_ARRAY_EXT
:
944 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
945 case GL_TEXTURE_2D_ARRAY_EXT
:
946 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
947 return (ctx
->Extensions
.MESA_texture_array
||
948 ctx
->Extensions
.EXT_texture_array
)
949 ? ctx
->Const
.MaxTextureLevels
: 0;
950 case GL_TEXTURE_BUFFER
:
951 return _mesa_is_desktop_gl(ctx
)
952 && ctx
->Extensions
.ARB_texture_buffer_object
954 case GL_TEXTURE_EXTERNAL_OES
:
957 return 0; /* bad target */
963 * Return number of dimensions per mipmap level for the given texture target.
966 _mesa_get_texture_dimensions(GLenum target
)
970 case GL_PROXY_TEXTURE_1D
:
973 case GL_TEXTURE_RECTANGLE
:
974 case GL_TEXTURE_CUBE_MAP
:
975 case GL_PROXY_TEXTURE_2D
:
976 case GL_PROXY_TEXTURE_RECTANGLE
:
977 case GL_PROXY_TEXTURE_CUBE_MAP
:
978 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
979 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
980 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
981 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
982 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
983 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
984 case GL_TEXTURE_1D_ARRAY
:
985 case GL_PROXY_TEXTURE_1D_ARRAY
:
986 case GL_TEXTURE_EXTERNAL_OES
:
989 case GL_PROXY_TEXTURE_3D
:
990 case GL_TEXTURE_2D_ARRAY
:
991 case GL_PROXY_TEXTURE_2D_ARRAY
:
993 case GL_TEXTURE_BUFFER
:
996 _mesa_problem(NULL
, "invalid target 0x%x in get_texture_dimensions()",
1005 #if 000 /* not used anymore */
1007 * glTexImage[123]D can accept a NULL image pointer. In this case we
1008 * create a texture image with unspecified image contents per the OpenGL
1012 make_null_texture(GLint width
, GLint height
, GLint depth
, GLenum format
)
1014 const GLint components
= _mesa_components_in_format(format
);
1015 const GLint numPixels
= width
* height
* depth
;
1016 GLubyte
*data
= (GLubyte
*) malloc(numPixels
* components
* sizeof(GLubyte
));
1020 * Let's see if anyone finds this. If glTexImage2D() is called with
1021 * a NULL image pointer then load the texture image with something
1022 * interesting instead of leaving it indeterminate.
1025 static const char message
[8][32] = {
1026 " X X XXXXX XXX X ",
1027 " XX XX X X X X X ",
1029 " X X XXXX XXX XXXXX ",
1032 " X X XXXXX XXX X X ",
1036 GLubyte
*imgPtr
= data
;
1038 for (h
= 0; h
< depth
; h
++) {
1039 for (i
= 0; i
< height
; i
++) {
1040 GLint srcRow
= 7 - (i
% 8);
1041 for (j
= 0; j
< width
; j
++) {
1042 GLint srcCol
= j
% 32;
1043 GLubyte texel
= (message
[srcRow
][srcCol
]=='X') ? 255 : 70;
1044 for (k
= 0; k
< components
; k
++) {
1060 * Set the size and format-related fields of a gl_texture_image struct
1061 * to zero. This is used when a proxy texture test fails.
1064 clear_teximage_fields(struct gl_texture_image
*img
)
1067 img
->_BaseFormat
= 0;
1068 img
->InternalFormat
= 0;
1077 img
->HeightLog2
= 0;
1079 img
->TexFormat
= MESA_FORMAT_NONE
;
1084 * Initialize basic fields of the gl_texture_image struct.
1086 * \param ctx GL context.
1087 * \param img texture image structure to be initialized.
1088 * \param width image width.
1089 * \param height image height.
1090 * \param depth image depth.
1091 * \param border image border.
1092 * \param internalFormat internal format.
1093 * \param format the actual hardware format (one of MESA_FORMAT_*)
1095 * Fills in the fields of \p img with the given information.
1096 * Note: width, height and depth include the border.
1099 _mesa_init_teximage_fields(struct gl_context
*ctx
,
1100 struct gl_texture_image
*img
,
1101 GLsizei width
, GLsizei height
, GLsizei depth
,
1102 GLint border
, GLenum internalFormat
,
1108 ASSERT(height
>= 0);
1111 target
= img
->TexObject
->Target
;
1112 img
->_BaseFormat
= _mesa_base_tex_format( ctx
, internalFormat
);
1113 ASSERT(img
->_BaseFormat
> 0);
1114 img
->InternalFormat
= internalFormat
;
1115 img
->Border
= border
;
1117 img
->Height
= height
;
1120 img
->Width2
= width
- 2 * border
; /* == 1 << img->WidthLog2; */
1121 img
->WidthLog2
= _mesa_logbase2(img
->Width2
);
1125 case GL_TEXTURE_BUFFER
:
1126 case GL_PROXY_TEXTURE_1D
:
1131 img
->HeightLog2
= 0;
1138 case GL_TEXTURE_1D_ARRAY
:
1139 case GL_PROXY_TEXTURE_1D_ARRAY
:
1140 img
->Height2
= height
; /* no border */
1141 img
->HeightLog2
= 0; /* not used */
1149 case GL_TEXTURE_RECTANGLE
:
1150 case GL_TEXTURE_CUBE_MAP
:
1151 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1152 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1153 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1154 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1155 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1156 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1157 case GL_TEXTURE_EXTERNAL_OES
:
1158 case GL_PROXY_TEXTURE_2D
:
1159 case GL_PROXY_TEXTURE_RECTANGLE
:
1160 case GL_PROXY_TEXTURE_CUBE_MAP
:
1161 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1162 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1169 case GL_TEXTURE_2D_ARRAY
:
1170 case GL_PROXY_TEXTURE_2D_ARRAY
:
1171 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1172 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1173 img
->Depth2
= depth
; /* no border */
1174 img
->DepthLog2
= 0; /* not used */
1177 case GL_PROXY_TEXTURE_3D
:
1178 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1179 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1180 img
->Depth2
= depth
- 2 * border
; /* == 1 << img->DepthLog2; */
1181 img
->DepthLog2
= _mesa_logbase2(img
->Depth2
);
1184 _mesa_problem(NULL
, "invalid target 0x%x in _mesa_init_teximage_fields()",
1188 img
->MaxLog2
= MAX2(img
->WidthLog2
, img
->HeightLog2
);
1189 img
->TexFormat
= format
;
1194 * Free and clear fields of the gl_texture_image struct.
1196 * \param ctx GL context.
1197 * \param texImage texture image structure to be cleared.
1199 * After the call, \p texImage will have no data associated with it. Its
1200 * fields are cleared so that its parent object will test incomplete.
1203 _mesa_clear_texture_image(struct gl_context
*ctx
,
1204 struct gl_texture_image
*texImage
)
1206 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
1207 clear_teximage_fields(texImage
);
1212 * Check the width, height, depth and border of a texture image are legal.
1213 * Used by all the glTexImage, glCompressedTexImage and glCopyTexImage
1215 * The target and level parameters will have already been validated.
1216 * \return GL_TRUE if size is OK, GL_FALSE otherwise.
1219 _mesa_legal_texture_dimensions(struct gl_context
*ctx
, GLenum target
,
1220 GLint level
, GLint width
, GLint height
,
1221 GLint depth
, GLint border
)
1227 case GL_PROXY_TEXTURE_1D
:
1228 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1); /* level zero size */
1229 maxSize
>>= level
; /* level size */
1230 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1232 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1233 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1239 case GL_PROXY_TEXTURE_2D
:
1240 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1242 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1244 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1246 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1247 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1249 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1255 case GL_PROXY_TEXTURE_3D
:
1256 maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
1258 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1260 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1262 if (depth
< 2 * border
|| depth
> 2 * border
+ maxSize
)
1264 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1265 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1267 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1269 if (depth
> 0 && !_mesa_is_pow_two(depth
- 2 * border
))
1274 case GL_TEXTURE_RECTANGLE_NV
:
1275 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1278 maxSize
= ctx
->Const
.MaxTextureRectSize
;
1279 if (width
< 0 || width
> maxSize
)
1281 if (height
< 0 || height
> maxSize
)
1285 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1286 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1287 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1288 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1289 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1290 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1291 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
1292 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1294 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1296 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1298 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1299 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1301 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1306 case GL_TEXTURE_1D_ARRAY_EXT
:
1307 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1308 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1310 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1312 if (height
< 1 || height
> ctx
->Const
.MaxArrayTextureLayers
)
1314 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1315 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1320 case GL_TEXTURE_2D_ARRAY_EXT
:
1321 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1322 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1324 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1326 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1328 if (depth
< 1 || depth
> ctx
->Const
.MaxArrayTextureLayers
)
1330 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1331 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1333 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1339 _mesa_problem(ctx
, "Invalid target in _mesa_legal_texture_dimensions()");
1346 * Do error checking of xoffset, yoffset, zoffset, width, height and depth
1347 * for glTexSubImage, glCopyTexSubImage and glCompressedTexSubImage.
1348 * \param destImage the destination texture image.
1349 * \return GL_TRUE if error found, GL_FALSE otherwise.
1352 error_check_subtexture_dimensions(struct gl_context
*ctx
,
1353 const char *function
, GLuint dims
,
1354 const struct gl_texture_image
*destImage
,
1355 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1356 GLsizei subWidth
, GLsizei subHeight
,
1359 const GLenum target
= destImage
->TexObject
->Target
;
1364 _mesa_error(ctx
, GL_INVALID_VALUE
,
1365 "%s%dD(width=%d)", function
, dims
, subWidth
);
1369 if (dims
> 1 && subHeight
< 0) {
1370 _mesa_error(ctx
, GL_INVALID_VALUE
,
1371 "%s%dD(height=%d)", function
, dims
, subHeight
);
1375 if (dims
> 2 && subDepth
< 0) {
1376 _mesa_error(ctx
, GL_INVALID_VALUE
,
1377 "%s%dD(depth=%d)", function
, dims
, subDepth
);
1381 /* check xoffset and width */
1382 if (xoffset
< -destImage
->Border
) {
1383 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s%dD(xoffset)",
1388 if (xoffset
+ subWidth
> destImage
->Width
) {
1389 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s%dD(xoffset+width)",
1394 /* check yoffset and height */
1396 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : destImage
->Border
;
1397 if (yoffset
< -yBorder
) {
1398 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s%dD(yoffset)",
1402 if (yoffset
+ subHeight
> destImage
->Height
) {
1403 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s%dD(yoffset+height)",
1409 /* check zoffset and depth */
1411 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
) ? 0 : destImage
->Border
;
1412 if (zoffset
< -zBorder
) {
1413 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s3D(zoffset)", function
);
1416 if (zoffset
+ subDepth
> (GLint
) destImage
->Depth
) {
1417 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s3D(zoffset+depth)", function
);
1423 * The OpenGL spec (and GL_ARB_texture_compression) says only whole
1424 * compressed texture images can be updated. But, that restriction may be
1425 * relaxed for particular compressed formats. At this time, all the
1426 * compressed formats supported by Mesa allow sub-textures to be updated
1427 * along compressed block boundaries.
1429 _mesa_get_format_block_size(destImage
->TexFormat
, &bw
, &bh
);
1431 if (bw
!= 1 || bh
!= 1) {
1432 /* offset must be multiple of block size */
1433 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0)) {
1434 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1435 "%s%dD(xoffset = %d, yoffset = %d)",
1436 function
, dims
, xoffset
, yoffset
);
1440 /* size must be multiple of bw by bh or equal to whole texture size */
1441 if ((subWidth
% bw
!= 0) && subWidth
!= destImage
->Width
) {
1442 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1443 "%s%dD(width = %d)", function
, dims
, subWidth
);
1447 if ((subHeight
% bh
!= 0) && subHeight
!= destImage
->Height
) {
1448 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1449 "%s%dD(height = %d)", function
, dims
, subHeight
);
1461 * This is the fallback for Driver.TestProxyTexImage() for doing device-
1462 * specific texture image size checks.
1464 * A hardware driver might override this function if, for example, the
1465 * max 3D texture size is 512x512x64 (i.e. not a cube).
1467 * Note that width, height, depth == 0 is not an error. However, a
1468 * texture with zero width/height/depth will be considered "incomplete"
1469 * and texturing will effectively be disabled.
1471 * \param target any texture target/type
1472 * \param level as passed to glTexImage
1473 * \param format the MESA_FORMAT_x for the tex image
1474 * \param width as passed to glTexImage
1475 * \param height as passed to glTexImage
1476 * \param depth as passed to glTexImage
1477 * \param border as passed to glTexImage
1478 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1481 _mesa_test_proxy_teximage(struct gl_context
*ctx
, GLenum target
, GLint level
,
1483 GLint width
, GLint height
, GLint depth
, GLint border
)
1485 /* We just check if the image size is less than MaxTextureMbytes.
1486 * Some drivers may do more specific checks.
1488 uint64_t bytes
= _mesa_format_image_size64(format
, width
, height
, depth
);
1489 uint64_t mbytes
= bytes
/ (1024 * 1024); /* convert to MB */
1490 mbytes
*= _mesa_num_tex_faces(target
);
1491 return mbytes
<= (uint64_t) ctx
->Const
.MaxTextureMbytes
;
1496 * Return true if the format is only valid for glCompressedTexImage.
1499 compressedteximage_only_format(const struct gl_context
*ctx
, GLenum format
)
1502 case GL_ETC1_RGB8_OES
:
1503 case GL_PALETTE4_RGB8_OES
:
1504 case GL_PALETTE4_RGBA8_OES
:
1505 case GL_PALETTE4_R5_G6_B5_OES
:
1506 case GL_PALETTE4_RGBA4_OES
:
1507 case GL_PALETTE4_RGB5_A1_OES
:
1508 case GL_PALETTE8_RGB8_OES
:
1509 case GL_PALETTE8_RGBA8_OES
:
1510 case GL_PALETTE8_R5_G6_B5_OES
:
1511 case GL_PALETTE8_RGBA4_OES
:
1512 case GL_PALETTE8_RGB5_A1_OES
:
1521 * Helper function to determine whether a target and specific compression
1522 * format are supported.
1525 target_can_be_compressed(const struct gl_context
*ctx
, GLenum target
,
1528 (void) intFormat
; /* not used yet */
1532 case GL_PROXY_TEXTURE_2D
:
1533 return GL_TRUE
; /* true for any compressed format so far */
1534 case GL_PROXY_TEXTURE_CUBE_MAP
:
1535 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1536 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1537 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1538 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1539 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1540 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1541 return ctx
->Extensions
.ARB_texture_cube_map
;
1542 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1543 case GL_TEXTURE_2D_ARRAY_EXT
:
1544 return (ctx
->Extensions
.MESA_texture_array
||
1545 ctx
->Extensions
.EXT_texture_array
);
1553 * Check if the given texture target value is legal for a
1554 * glTexImage1/2/3D call.
1557 legal_teximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1563 case GL_PROXY_TEXTURE_1D
:
1564 return _mesa_is_desktop_gl(ctx
);
1572 case GL_PROXY_TEXTURE_2D
:
1573 return _mesa_is_desktop_gl(ctx
);
1574 case GL_PROXY_TEXTURE_CUBE_MAP
:
1575 return _mesa_is_desktop_gl(ctx
)
1576 && ctx
->Extensions
.ARB_texture_cube_map
;
1577 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1578 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1579 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1580 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1581 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1582 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1583 return ctx
->Extensions
.ARB_texture_cube_map
;
1584 case GL_TEXTURE_RECTANGLE_NV
:
1585 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1586 return _mesa_is_desktop_gl(ctx
)
1587 && ctx
->Extensions
.NV_texture_rectangle
;
1588 case GL_TEXTURE_1D_ARRAY_EXT
:
1589 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1590 return _mesa_is_desktop_gl(ctx
)
1591 && (ctx
->Extensions
.MESA_texture_array
||
1592 ctx
->Extensions
.EXT_texture_array
);
1600 case GL_PROXY_TEXTURE_3D
:
1601 return _mesa_is_desktop_gl(ctx
);
1602 case GL_TEXTURE_2D_ARRAY_EXT
:
1603 return (_mesa_is_desktop_gl(ctx
)
1604 && (ctx
->Extensions
.MESA_texture_array
||
1605 ctx
->Extensions
.EXT_texture_array
))
1606 || _mesa_is_gles3(ctx
);
1607 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1608 return _mesa_is_desktop_gl(ctx
)
1609 && (ctx
->Extensions
.MESA_texture_array
||
1610 ctx
->Extensions
.EXT_texture_array
);
1615 _mesa_problem(ctx
, "invalid dims=%u in legal_teximage_target()", dims
);
1622 * Check if the given texture target value is legal for a
1623 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1624 * The difference compared to legal_teximage_target() above is that
1625 * proxy targets are not supported.
1628 legal_texsubimage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1632 return _mesa_is_desktop_gl(ctx
) && target
== GL_TEXTURE_1D
;
1637 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1638 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1639 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1640 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1641 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1642 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1643 return ctx
->Extensions
.ARB_texture_cube_map
;
1644 case GL_TEXTURE_RECTANGLE_NV
:
1645 return _mesa_is_desktop_gl(ctx
)
1646 && ctx
->Extensions
.NV_texture_rectangle
;
1647 case GL_TEXTURE_1D_ARRAY_EXT
:
1648 return _mesa_is_desktop_gl(ctx
)
1649 && (ctx
->Extensions
.MESA_texture_array
||
1650 ctx
->Extensions
.EXT_texture_array
);
1658 case GL_TEXTURE_2D_ARRAY_EXT
:
1659 return (_mesa_is_desktop_gl(ctx
)
1660 && (ctx
->Extensions
.MESA_texture_array
||
1661 ctx
->Extensions
.EXT_texture_array
))
1662 || _mesa_is_gles3(ctx
);
1667 _mesa_problem(ctx
, "invalid dims=%u in legal_texsubimage_target()",
1675 * Helper function to determine if a texture object is mutable (in terms
1676 * of GL_ARB_texture_storage).
1679 mutable_tex_object(struct gl_context
*ctx
, GLenum target
)
1681 if (ctx
->Extensions
.ARB_texture_storage
) {
1682 struct gl_texture_object
*texObj
=
1683 _mesa_get_current_tex_object(ctx
, target
);
1684 return !texObj
->Immutable
;
1691 _mesa_es_error_check_format_and_type(GLenum format
, GLenum type
,
1692 unsigned dimensions
)
1694 bool type_valid
= true;
1699 case GL_LUMINANCE_ALPHA
:
1700 type_valid
= (type
== GL_UNSIGNED_BYTE
1702 || type
== GL_HALF_FLOAT_OES
);
1706 type_valid
= (type
== GL_UNSIGNED_BYTE
1707 || type
== GL_UNSIGNED_SHORT_5_6_5
1709 || type
== GL_HALF_FLOAT_OES
);
1713 type_valid
= (type
== GL_UNSIGNED_BYTE
1714 || type
== GL_UNSIGNED_SHORT_4_4_4_4
1715 || type
== GL_UNSIGNED_SHORT_5_5_5_1
1717 || type
== GL_HALF_FLOAT_OES
1718 || type
== GL_UNSIGNED_INT_2_10_10_10_REV
);
1721 case GL_DEPTH_COMPONENT
:
1722 /* This format is filtered against invalid dimensionalities elsewhere.
1724 type_valid
= (type
== GL_UNSIGNED_SHORT
1725 || type
== GL_UNSIGNED_INT
);
1728 case GL_DEPTH_STENCIL
:
1729 /* This format is filtered against invalid dimensionalities elsewhere.
1731 type_valid
= (type
== GL_UNSIGNED_INT_24_8
);
1735 type_valid
= (type
== GL_UNSIGNED_BYTE
);
1737 /* This feels like a bug in the EXT_texture_format_BGRA8888 spec, but
1738 * the format does not appear to be allowed for 3D textures in OpenGL
1741 if (dimensions
!= 2)
1742 return GL_INVALID_VALUE
;
1747 return GL_INVALID_VALUE
;
1750 return type_valid
? GL_NO_ERROR
: GL_INVALID_OPERATION
;
1756 * Return expected size of a compressed texture.
1759 compressed_tex_size(GLsizei width
, GLsizei height
, GLsizei depth
,
1762 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
1763 return _mesa_format_image_size(mesaFormat
, width
, height
, depth
);
1768 * Test the glTexImage[123]D() parameters for errors.
1770 * \param ctx GL context.
1771 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1772 * \param target texture target given by the user (already validated).
1773 * \param level image level given by the user.
1774 * \param internalFormat internal format given by the user.
1775 * \param format pixel data format given by the user.
1776 * \param type pixel data type given by the user.
1777 * \param width image width given by the user.
1778 * \param height image height given by the user.
1779 * \param depth image depth given by the user.
1780 * \param border image border given by the user.
1782 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1784 * Verifies each of the parameters against the constants specified in
1785 * __struct gl_contextRec::Const and the supported extensions, and according
1786 * to the OpenGL specification.
1787 * Note that we don't fully error-check the width, height, depth values
1788 * here. That's done in _mesa_legal_texture_dimensions() which is used
1789 * by several other GL entrypoints. Plus, texture dims have a special
1790 * interaction with proxy textures.
1793 texture_error_check( struct gl_context
*ctx
,
1794 GLuint dimensions
, GLenum target
,
1795 GLint level
, GLint internalFormat
,
1796 GLenum format
, GLenum type
,
1797 GLint width
, GLint height
,
1798 GLint depth
, GLint border
)
1800 GLboolean colorFormat
;
1803 /* Even though there are no color-index textures, we still have to support
1804 * uploading color-index data and remapping it to RGB via the
1805 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1807 const GLboolean indexFormat
= (format
== GL_COLOR_INDEX
);
1809 /* Note: for proxy textures, some error conditions immediately generate
1810 * a GL error in the usual way. But others do not generate a GL error.
1811 * Instead, they cause the width, height, depth, format fields of the
1812 * texture image to be zeroed-out. The GL spec seems to indicate that the
1813 * zero-out behaviour is only used in cases related to memory allocation.
1817 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
1818 _mesa_error(ctx
, GL_INVALID_VALUE
,
1819 "glTexImage%dD(level=%d)", dimensions
, level
);
1824 if (border
< 0 || border
> 1 ||
1825 ((ctx
->API
!= API_OPENGL
||
1826 target
== GL_TEXTURE_RECTANGLE_NV
||
1827 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1828 _mesa_error(ctx
, GL_INVALID_VALUE
,
1829 "glTexImage%dD(border=%d)", dimensions
, border
);
1833 if (width
< 0 || height
< 0 || depth
< 0) {
1834 _mesa_error(ctx
, GL_INVALID_VALUE
,
1835 "glTexImage%dD(width, height or depth < 0)", dimensions
);
1839 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1840 * combinations of format, internalFormat, and type that can be used.
1841 * Formats and types that require additional extensions (e.g., GL_FLOAT
1842 * requires GL_OES_texture_float) are filtered elsewhere.
1844 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
1845 if (format
!= internalFormat
) {
1846 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1847 "glTexImage%dD(format = %s, internalFormat = %s)",
1849 _mesa_lookup_enum_by_nr(format
),
1850 _mesa_lookup_enum_by_nr(internalFormat
));
1854 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
1855 if (err
!= GL_NO_ERROR
) {
1856 _mesa_error(ctx
, err
,
1857 "glTexImage%dD(format = %s, type = %s)",
1859 _mesa_lookup_enum_by_nr(format
),
1860 _mesa_lookup_enum_by_nr(type
));
1865 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
1866 _mesa_is_cube_face(target
)) && width
!= height
) {
1867 _mesa_error(ctx
, GL_INVALID_VALUE
,
1868 "glTexImage2D(cube width != height)");
1872 /* Check internalFormat */
1873 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1874 _mesa_error(ctx
, GL_INVALID_VALUE
,
1875 "glTexImage%dD(internalFormat=%s)",
1876 dimensions
, _mesa_lookup_enum_by_nr(internalFormat
));
1880 /* Check incoming image format and type */
1881 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
1882 if (err
!= GL_NO_ERROR
) {
1883 _mesa_error(ctx
, err
,
1884 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1885 dimensions
, format
, type
);
1889 /* make sure internal format and format basically agree */
1890 colorFormat
= _mesa_is_color_format(format
);
1891 if ((_mesa_is_color_format(internalFormat
) && !colorFormat
&& !indexFormat
) ||
1892 (_mesa_is_depth_format(internalFormat
) != _mesa_is_depth_format(format
)) ||
1893 (_mesa_is_ycbcr_format(internalFormat
) != _mesa_is_ycbcr_format(format
)) ||
1894 (_mesa_is_depthstencil_format(internalFormat
) != _mesa_is_depthstencil_format(format
)) ||
1895 (_mesa_is_dudv_format(internalFormat
) != _mesa_is_dudv_format(format
))) {
1896 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1897 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1898 dimensions
, internalFormat
, format
);
1902 /* additional checks for ycbcr textures */
1903 if (internalFormat
== GL_YCBCR_MESA
) {
1904 ASSERT(ctx
->Extensions
.MESA_ycbcr_texture
);
1905 if (type
!= GL_UNSIGNED_SHORT_8_8_MESA
&&
1906 type
!= GL_UNSIGNED_SHORT_8_8_REV_MESA
) {
1908 _mesa_snprintf(message
, sizeof(message
),
1909 "glTexImage%dD(format/type YCBCR mismatch)",
1911 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", message
);
1912 return GL_TRUE
; /* error */
1914 if (target
!= GL_TEXTURE_2D
&&
1915 target
!= GL_PROXY_TEXTURE_2D
&&
1916 target
!= GL_TEXTURE_RECTANGLE_NV
&&
1917 target
!= GL_PROXY_TEXTURE_RECTANGLE_NV
) {
1918 _mesa_error(ctx
, GL_INVALID_ENUM
,
1919 "glTexImage%dD(bad target for YCbCr texture)",
1925 _mesa_snprintf(message
, sizeof(message
),
1926 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1927 dimensions
, border
);
1928 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", message
);
1933 /* additional checks for depth textures */
1934 if (_mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_COMPONENT
) {
1935 /* Only 1D, 2D, rect, array and cube textures supported, not 3D
1936 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */
1937 if (target
!= GL_TEXTURE_1D
&&
1938 target
!= GL_PROXY_TEXTURE_1D
&&
1939 target
!= GL_TEXTURE_2D
&&
1940 target
!= GL_PROXY_TEXTURE_2D
&&
1941 target
!= GL_TEXTURE_1D_ARRAY
&&
1942 target
!= GL_PROXY_TEXTURE_1D_ARRAY
&&
1943 target
!= GL_TEXTURE_2D_ARRAY
&&
1944 target
!= GL_PROXY_TEXTURE_2D_ARRAY
&&
1945 target
!= GL_TEXTURE_RECTANGLE_ARB
&&
1946 target
!= GL_PROXY_TEXTURE_RECTANGLE_ARB
&&
1947 !((_mesa_is_cube_face(target
) || target
== GL_PROXY_TEXTURE_CUBE_MAP
) &&
1948 (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_gpu_shader4
))) {
1949 _mesa_error(ctx
, GL_INVALID_ENUM
,
1950 "glTexImage%dD(bad target for depth texture)",
1956 /* additional checks for compressed textures */
1957 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
1958 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1959 _mesa_error(ctx
, GL_INVALID_ENUM
,
1960 "glTexImage%dD(target can't be compressed)", dimensions
);
1963 if (compressedteximage_only_format(ctx
, internalFormat
)) {
1964 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1965 "glTexImage%dD(no compression for format)", dimensions
);
1969 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1970 "glTexImage%dD(border!=0)", dimensions
);
1975 /* additional checks for integer textures */
1976 if ((ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) &&
1977 (_mesa_is_enum_format_integer(format
) !=
1978 _mesa_is_enum_format_integer(internalFormat
))) {
1979 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1980 "glTexImage%dD(integer/non-integer format mismatch)",
1985 if (!mutable_tex_object(ctx
, target
)) {
1986 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1987 "glTexImage%dD(immutable texture)", dimensions
);
1991 /* if we get here, the parameters are OK */
1997 * Error checking for glCompressedTexImage[123]D().
1998 * Note that the width, height and depth values are not fully error checked
2000 * \return GL_TRUE if a error is found, GL_FALSE otherwise
2003 compressed_texture_error_check(struct gl_context
*ctx
, GLint dimensions
,
2004 GLenum target
, GLint level
,
2005 GLenum internalFormat
, GLsizei width
,
2006 GLsizei height
, GLsizei depth
, GLint border
,
2009 const GLint maxLevels
= _mesa_max_texture_levels(ctx
, target
);
2011 GLenum choose_format
;
2013 GLenum proxy_format
;
2014 GLenum error
= GL_NO_ERROR
;
2015 char *reason
= ""; /* no error */
2017 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2019 error
= GL_INVALID_ENUM
;
2023 /* This will detect any invalid internalFormat value */
2024 if (!_mesa_is_compressed_format(ctx
, internalFormat
)) {
2025 reason
= "internalFormat";
2026 error
= GL_INVALID_ENUM
;
2030 switch (internalFormat
) {
2032 case GL_PALETTE4_RGB8_OES
:
2033 case GL_PALETTE4_RGBA8_OES
:
2034 case GL_PALETTE4_R5_G6_B5_OES
:
2035 case GL_PALETTE4_RGBA4_OES
:
2036 case GL_PALETTE4_RGB5_A1_OES
:
2037 case GL_PALETTE8_RGB8_OES
:
2038 case GL_PALETTE8_RGBA8_OES
:
2039 case GL_PALETTE8_R5_G6_B5_OES
:
2040 case GL_PALETTE8_RGBA4_OES
:
2041 case GL_PALETTE8_RGB5_A1_OES
:
2042 _mesa_cpal_compressed_format_type(internalFormat
, &choose_format
,
2044 proxy_format
= choose_format
;
2046 /* check level (note that level should be zero or less!) */
2047 if (level
> 0 || level
< -maxLevels
) {
2049 error
= GL_INVALID_VALUE
;
2053 if (dimensions
!= 2) {
2054 reason
= "compressed paletted textures must be 2D";
2055 error
= GL_INVALID_OPERATION
;
2059 /* Figure out the expected texture size (in bytes). This will be
2060 * checked against the actual size later.
2062 expectedSize
= _mesa_cpal_compressed_size(level
, internalFormat
,
2065 /* This is for the benefit of the TestProxyTexImage below. It expects
2066 * level to be non-negative. OES_compressed_paletted_texture uses a
2067 * weird mechanism where the level specified to glCompressedTexImage2D
2068 * is -(n-1) number of levels in the texture, and the data specifies the
2069 * complete mipmap stack. This is done to ensure the palette is the
2070 * same for all levels.
2077 choose_format
= GL_NONE
;
2078 choose_type
= GL_NONE
;
2079 proxy_format
= internalFormat
;
2082 if (level
< 0 || level
>= maxLevels
) {
2084 error
= GL_INVALID_VALUE
;
2088 /* Figure out the expected texture size (in bytes). This will be
2089 * checked against the actual size later.
2091 expectedSize
= compressed_tex_size(width
, height
, depth
, internalFormat
);
2095 /* This should really never fail */
2096 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
2097 reason
= "internalFormat";
2098 error
= GL_INVALID_ENUM
;
2102 /* No compressed formats support borders at this time */
2104 reason
= "border != 0";
2105 error
= GL_INVALID_VALUE
;
2109 /* For cube map, width must equal height */
2110 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
2111 _mesa_is_cube_face(target
)) && width
!= height
) {
2112 reason
= "width != height";
2113 error
= GL_INVALID_VALUE
;
2117 /* check image size against compression block size */
2118 /* XXX possibly move this into the _mesa_legal_texture_dimensions() func */
2120 gl_format texFormat
=
2121 ctx
->Driver
.ChooseTextureFormat(ctx
, target
, proxy_format
,
2122 choose_format
, choose_type
);
2125 _mesa_get_format_block_size(texFormat
, &bw
, &bh
);
2126 if ((width
> bw
&& width
% bw
> 0) ||
2127 (height
> bh
&& height
% bh
> 0)) {
2129 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is
2130 * generated [...] if any parameter combinations are not
2131 * supported by the specific compressed internal format.
2133 reason
= "invalid width or height for compression format";
2134 error
= GL_INVALID_OPERATION
;
2139 /* check image size in bytes */
2140 if (expectedSize
!= imageSize
) {
2141 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
2142 * if <imageSize> is not consistent with the format, dimensions, and
2143 * contents of the specified image.
2145 reason
= "imageSize inconsistant with width/height/format";
2146 error
= GL_INVALID_VALUE
;
2150 if (!mutable_tex_object(ctx
, target
)) {
2151 reason
= "immutable texture";
2152 error
= GL_INVALID_OPERATION
;
2159 _mesa_error(ctx
, error
, "glCompressedTexImage%dD(%s)", dimensions
, reason
);
2166 * Test glTexSubImage[123]D() parameters for errors.
2168 * \param ctx GL context.
2169 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2170 * \param target texture target given by the user (already validated)
2171 * \param level image level given by the user.
2172 * \param xoffset sub-image x offset given by the user.
2173 * \param yoffset sub-image y offset given by the user.
2174 * \param zoffset sub-image z offset given by the user.
2175 * \param format pixel data format given by the user.
2176 * \param type pixel data type given by the user.
2177 * \param width image width given by the user.
2178 * \param height image height given by the user.
2179 * \param depth image depth given by the user.
2181 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2183 * Verifies each of the parameters against the constants specified in
2184 * __struct gl_contextRec::Const and the supported extensions, and according
2185 * to the OpenGL specification.
2188 texsubimage_error_check(struct gl_context
*ctx
, GLuint dimensions
,
2189 GLenum target
, GLint level
,
2190 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2191 GLint width
, GLint height
, GLint depth
,
2192 GLenum format
, GLenum type
)
2194 struct gl_texture_object
*texObj
;
2195 struct gl_texture_image
*texImage
;
2198 /* check target (proxies not allowed) */
2199 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2200 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
2201 dimensions
, _mesa_lookup_enum_by_nr(target
));
2206 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2207 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage2D(level=%d)", level
);
2211 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2212 * combinations of format and type that can be used. Formats and types
2213 * that require additional extensions (e.g., GL_FLOAT requires
2214 * GL_OES_texture_float) are filtered elsewhere.
2216 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2217 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
2218 if (err
!= GL_NO_ERROR
) {
2219 _mesa_error(ctx
, err
,
2220 "glTexSubImage%dD(format = %s, type = %s)",
2222 _mesa_lookup_enum_by_nr(format
),
2223 _mesa_lookup_enum_by_nr(type
));
2228 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
2229 if (err
!= GL_NO_ERROR
) {
2230 _mesa_error(ctx
, err
,
2231 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
2232 dimensions
, format
, type
);
2236 /* Get dest texture object / image pointers */
2237 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2239 /* must be out of memory */
2240 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage%dD()", dimensions
);
2244 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2246 /* non-existant texture level */
2247 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2248 "glTexSubImage%dD(invalid texture image)", dimensions
);
2252 if (error_check_subtexture_dimensions(ctx
, "glTexSubImage", dimensions
,
2253 texImage
, xoffset
, yoffset
, 0,
2254 width
, height
, 1)) {
2258 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
2259 if (compressedteximage_only_format(ctx
, texImage
->InternalFormat
)) {
2260 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2261 "glTexSubImage%dD(no compression for format)", dimensions
);
2266 if (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) {
2267 /* both source and dest must be integer-valued, or neither */
2268 if (_mesa_is_format_integer_color(texImage
->TexFormat
) !=
2269 _mesa_is_enum_format_integer(format
)) {
2270 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2271 "glTexSubImage%dD(integer/non-integer format mismatch)",
2282 * Test glCopyTexImage[12]D() parameters for errors.
2284 * \param ctx GL context.
2285 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2286 * \param target texture target given by the user.
2287 * \param level image level given by the user.
2288 * \param internalFormat internal format given by the user.
2289 * \param width image width given by the user.
2290 * \param height image height given by the user.
2291 * \param border texture border.
2293 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2295 * Verifies each of the parameters against the constants specified in
2296 * __struct gl_contextRec::Const and the supported extensions, and according
2297 * to the OpenGL specification.
2300 copytexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
2301 GLenum target
, GLint level
, GLint internalFormat
,
2302 GLint width
, GLint height
, GLint border
)
2307 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2308 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexImage%uD(target=%s)",
2309 dimensions
, _mesa_lookup_enum_by_nr(target
));
2314 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2315 _mesa_error(ctx
, GL_INVALID_VALUE
,
2316 "glCopyTexImage%dD(level=%d)", dimensions
, level
);
2320 /* Check that the source buffer is complete */
2321 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2322 if (ctx
->ReadBuffer
->_Status
== 0) {
2323 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2325 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2326 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2327 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2331 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2332 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2333 "glCopyTexImage%dD(multisample FBO)",
2340 if (border
< 0 || border
> 1 ||
2341 ((ctx
->API
!= API_OPENGL
||
2342 target
== GL_TEXTURE_RECTANGLE_NV
||
2343 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
2344 _mesa_error(ctx
, GL_INVALID_VALUE
,
2345 "glCopyTexImage%dD(border=%d)", dimensions
, border
);
2349 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2352 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2353 switch (internalFormat
) {
2358 case GL_LUMINANCE_ALPHA
:
2361 _mesa_error(ctx
, GL_INVALID_VALUE
,
2362 "glCopyTexImage%dD(internalFormat)", dimensions
);
2367 baseFormat
= _mesa_base_tex_format(ctx
, internalFormat
);
2368 if (baseFormat
< 0) {
2369 _mesa_error(ctx
, GL_INVALID_VALUE
,
2370 "glCopyTexImage%dD(internalFormat)", dimensions
);
2374 if (!_mesa_source_buffer_exists(ctx
, baseFormat
)) {
2375 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2376 "glCopyTexImage%dD(missing readbuffer)", dimensions
);
2380 /* From the EXT_texture_integer spec:
2382 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2383 * if the texture internalformat is an integer format and the read color
2384 * buffer is not an integer format, or if the internalformat is not an
2385 * integer format and the read color buffer is an integer format."
2387 if (_mesa_is_color_format(internalFormat
)) {
2388 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2390 if (_mesa_is_enum_format_integer(rb
->InternalFormat
) !=
2391 _mesa_is_enum_format_integer(internalFormat
)) {
2392 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2393 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2398 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
2399 _mesa_is_cube_face(target
)) && width
!= height
) {
2400 _mesa_error(ctx
, GL_INVALID_VALUE
,
2401 "glTexImage2D(cube width != height)");
2405 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
2406 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2407 _mesa_error(ctx
, GL_INVALID_ENUM
,
2408 "glCopyTexImage%dD(target)", dimensions
);
2411 if (compressedteximage_only_format(ctx
, internalFormat
)) {
2412 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2413 "glCopyTexImage%dD(no compression for format)", dimensions
);
2417 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2418 "glCopyTexImage%dD(border!=0)", dimensions
);
2423 if (!mutable_tex_object(ctx
, target
)) {
2424 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2425 "glCopyTexImage%dD(immutable texture)", dimensions
);
2429 /* if we get here, the parameters are OK */
2435 * Test glCopyTexSubImage[12]D() parameters for errors.
2436 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2439 copytexsubimage_error_check(struct gl_context
*ctx
, GLuint dimensions
,
2440 GLenum target
, GLint level
,
2441 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2442 GLint width
, GLint height
)
2444 struct gl_texture_object
*texObj
;
2445 struct gl_texture_image
*texImage
;
2447 /* Check that the source buffer is complete */
2448 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2449 if (ctx
->ReadBuffer
->_Status
== 0) {
2450 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2452 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2453 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2454 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2458 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2459 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2460 "glCopyTexSubImage%dD(multisample FBO)",
2466 /* check target (proxies not allowed) */
2467 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2468 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexSubImage%uD(target=%s)",
2469 dimensions
, _mesa_lookup_enum_by_nr(target
));
2474 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2475 _mesa_error(ctx
, GL_INVALID_VALUE
,
2476 "glCopyTexSubImage%dD(level=%d)", dimensions
, level
);
2480 /* Get dest texture object / image pointers */
2481 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2483 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexSubImage%dD()", dimensions
);
2487 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2489 /* destination image does not exist */
2490 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2491 "glCopyTexSubImage%dD(invalid texture image)", dimensions
);
2495 if (error_check_subtexture_dimensions(ctx
, "glCopyTexSubImage",
2496 dimensions
, texImage
,
2497 xoffset
, yoffset
, zoffset
,
2498 width
, height
, 1)) {
2502 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
2503 if (compressedteximage_only_format(ctx
, texImage
->InternalFormat
)) {
2504 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2505 "glCopyTexSubImage%dD(no compression for format)", dimensions
);
2510 if (texImage
->InternalFormat
== GL_YCBCR_MESA
) {
2511 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glCopyTexSubImage2D");
2515 if (!_mesa_source_buffer_exists(ctx
, texImage
->_BaseFormat
)) {
2516 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2517 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2518 dimensions
, texImage
->_BaseFormat
);
2522 /* From the EXT_texture_integer spec:
2524 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2525 * if the texture internalformat is an integer format and the read color
2526 * buffer is not an integer format, or if the internalformat is not an
2527 * integer format and the read color buffer is an integer format."
2529 if (_mesa_is_color_format(texImage
->InternalFormat
)) {
2530 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2532 if (_mesa_is_format_integer_color(rb
->Format
) !=
2533 _mesa_is_format_integer_color(texImage
->TexFormat
)) {
2534 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2535 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2540 /* if we get here, the parameters are OK */
2545 /** Callback info for walking over FBO hash table */
2548 struct gl_context
*ctx
;
2549 struct gl_texture_object
*texObj
;
2555 * Check render to texture callback. Called from _mesa_HashWalk().
2558 check_rtt_cb(GLuint key
, void *data
, void *userData
)
2560 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2561 const struct cb_info
*info
= (struct cb_info
*) userData
;
2562 struct gl_context
*ctx
= info
->ctx
;
2563 const struct gl_texture_object
*texObj
= info
->texObj
;
2564 const GLuint level
= info
->level
, face
= info
->face
;
2566 /* If this is a user-created FBO */
2567 if (_mesa_is_user_fbo(fb
)) {
2569 /* check if any of the FBO's attachments point to 'texObj' */
2570 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2571 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2572 if (att
->Type
== GL_TEXTURE
&&
2573 att
->Texture
== texObj
&&
2574 att
->TextureLevel
== level
&&
2575 att
->CubeMapFace
== face
) {
2576 ASSERT(_mesa_get_attachment_teximage(att
));
2577 /* Tell driver about the new renderbuffer texture */
2578 ctx
->Driver
.RenderTexture(ctx
, ctx
->DrawBuffer
, att
);
2579 /* Mark fb status as indeterminate to force re-validation */
2588 * When a texture image is specified we have to check if it's bound to
2589 * any framebuffer objects (render to texture) in order to detect changes
2590 * in size or format since that effects FBO completeness.
2591 * Any FBOs rendering into the texture must be re-validated.
2594 _mesa_update_fbo_texture(struct gl_context
*ctx
,
2595 struct gl_texture_object
*texObj
,
2596 GLuint face
, GLuint level
)
2598 /* Only check this texture if it's been marked as RenderToTexture */
2599 if (texObj
->_RenderToTexture
) {
2600 struct cb_info info
;
2602 info
.texObj
= texObj
;
2605 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, check_rtt_cb
, &info
);
2611 * If the texture object's GenerateMipmap flag is set and we've
2612 * changed the texture base level image, regenerate the rest of the
2613 * mipmap levels now.
2616 check_gen_mipmap(struct gl_context
*ctx
, GLenum target
,
2617 struct gl_texture_object
*texObj
, GLint level
)
2619 ASSERT(target
!= GL_TEXTURE_CUBE_MAP
);
2620 if (texObj
->GenerateMipmap
&&
2621 level
== texObj
->BaseLevel
&&
2622 level
< texObj
->MaxLevel
) {
2623 ASSERT(ctx
->Driver
.GenerateMipmap
);
2624 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2629 /** Debug helper: override the user-requested internal format */
2631 override_internal_format(GLenum internalFormat
, GLint width
, GLint height
)
2634 if (internalFormat
== GL_RGBA16F_ARB
||
2635 internalFormat
== GL_RGBA32F_ARB
) {
2636 printf("Convert rgba float tex to int %d x %d\n", width
, height
);
2639 else if (internalFormat
== GL_RGB16F_ARB
||
2640 internalFormat
== GL_RGB32F_ARB
) {
2641 printf("Convert rgb float tex to int %d x %d\n", width
, height
);
2644 else if (internalFormat
== GL_LUMINANCE_ALPHA16F_ARB
||
2645 internalFormat
== GL_LUMINANCE_ALPHA32F_ARB
) {
2646 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2647 return GL_LUMINANCE_ALPHA
;
2649 else if (internalFormat
== GL_LUMINANCE16F_ARB
||
2650 internalFormat
== GL_LUMINANCE32F_ARB
) {
2651 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2652 return GL_LUMINANCE
;
2654 else if (internalFormat
== GL_ALPHA16F_ARB
||
2655 internalFormat
== GL_ALPHA32F_ARB
) {
2656 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2660 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2661 internalFormat = GL_RGBA;
2665 return internalFormat
;
2668 return internalFormat
;
2674 * Choose the actual hardware format for a texture image.
2675 * Try to use the same format as the previous image level when possible.
2676 * Otherwise, ask the driver for the best format.
2677 * It's important to try to choose a consistant format for all levels
2678 * for efficient texture memory layout/allocation. In particular, this
2679 * comes up during automatic mipmap generation.
2682 _mesa_choose_texture_format(struct gl_context
*ctx
,
2683 struct gl_texture_object
*texObj
,
2684 GLenum target
, GLint level
,
2685 GLenum internalFormat
, GLenum format
, GLenum type
)
2689 /* see if we've already chosen a format for the previous level */
2691 struct gl_texture_image
*prevImage
=
2692 _mesa_select_tex_image(ctx
, texObj
, target
, level
- 1);
2693 /* See if the prev level is defined and has an internal format which
2694 * matches the new internal format.
2697 prevImage
->Width
> 0 &&
2698 prevImage
->InternalFormat
== internalFormat
) {
2699 /* use the same format */
2700 ASSERT(prevImage
->TexFormat
!= MESA_FORMAT_NONE
);
2701 return prevImage
->TexFormat
;
2705 /* If the application requested compression to an S3TC format but we don't
2706 * have the DTXn library, force a generic compressed format instead.
2708 if (internalFormat
!= format
&& format
!= GL_NONE
) {
2709 const GLenum before
= internalFormat
;
2711 switch (internalFormat
) {
2712 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
2713 if (!ctx
->Mesa_DXTn
)
2714 internalFormat
= GL_COMPRESSED_RGB
;
2716 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
2717 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
2718 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
2719 if (!ctx
->Mesa_DXTn
)
2720 internalFormat
= GL_COMPRESSED_RGBA
;
2726 if (before
!= internalFormat
) {
2728 "DXT compression requested (%s), "
2729 "but libtxc_dxtn library not installed. Using %s "
2731 _mesa_lookup_enum_by_nr(before
),
2732 _mesa_lookup_enum_by_nr(internalFormat
));
2736 /* choose format from scratch */
2737 f
= ctx
->Driver
.ChooseTextureFormat(ctx
, texObj
->Target
, internalFormat
,
2739 ASSERT(f
!= MESA_FORMAT_NONE
);
2744 * Adjust pixel unpack params and image dimensions to strip off the
2745 * one-pixel texture border.
2747 * Gallium and intel don't support texture borders. They've seldem been used
2748 * and seldom been implemented correctly anyway.
2750 * \param unpackNew returns the new pixel unpack parameters
2753 strip_texture_border(GLenum target
,
2754 GLint
*width
, GLint
*height
, GLint
*depth
,
2755 const struct gl_pixelstore_attrib
*unpack
,
2756 struct gl_pixelstore_attrib
*unpackNew
)
2762 *unpackNew
= *unpack
;
2764 if (unpackNew
->RowLength
== 0)
2765 unpackNew
->RowLength
= *width
;
2767 if (unpackNew
->ImageHeight
== 0)
2768 unpackNew
->ImageHeight
= *height
;
2770 assert(*width
>= 3);
2771 unpackNew
->SkipPixels
++; /* skip the border */
2772 *width
= *width
- 2; /* reduce the width by two border pixels */
2774 /* The min height of a texture with a border is 3 */
2775 if (*height
>= 3 && target
!= GL_TEXTURE_1D_ARRAY
) {
2776 unpackNew
->SkipRows
++; /* skip the border */
2777 *height
= *height
- 2; /* reduce the height by two border pixels */
2780 if (*depth
>= 3 && target
!= GL_TEXTURE_2D_ARRAY
) {
2781 unpackNew
->SkipImages
++; /* skip the border */
2782 *depth
= *depth
- 2; /* reduce the depth by two border pixels */
2788 * Common code to implement all the glTexImage1D/2D/3D functions
2789 * as well as glCompressedTexImage1D/2D/3D.
2790 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls.
2791 * \param format the user's image format (only used if !compressed)
2792 * \param type the user's image type (only used if !compressed)
2793 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls.
2796 teximage(struct gl_context
*ctx
, GLboolean compressed
, GLuint dims
,
2797 GLenum target
, GLint level
, GLint internalFormat
,
2798 GLsizei width
, GLsizei height
, GLsizei depth
,
2799 GLint border
, GLenum format
, GLenum type
,
2800 GLsizei imageSize
, const GLvoid
*pixels
)
2802 const char *func
= compressed
? "glCompressedTexImage" : "glTexImage";
2803 struct gl_pixelstore_attrib unpack_no_border
;
2804 const struct gl_pixelstore_attrib
*unpack
= &ctx
->Unpack
;
2805 struct gl_texture_object
*texObj
;
2806 gl_format texFormat
;
2807 GLboolean dimensionsOK
, sizeOK
;
2809 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2811 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
)) {
2814 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n",
2816 _mesa_lookup_enum_by_nr(target
), level
,
2817 _mesa_lookup_enum_by_nr(internalFormat
),
2818 width
, height
, depth
, border
, pixels
);
2821 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2823 _mesa_lookup_enum_by_nr(target
), level
,
2824 _mesa_lookup_enum_by_nr(internalFormat
),
2825 width
, height
, depth
, border
,
2826 _mesa_lookup_enum_by_nr(format
),
2827 _mesa_lookup_enum_by_nr(type
), pixels
);
2830 internalFormat
= override_internal_format(internalFormat
, width
, height
);
2832 /* target error checking */
2833 if (!legal_teximage_target(ctx
, dims
, target
)) {
2834 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s%uD(target=%s)",
2835 func
, dims
, _mesa_lookup_enum_by_nr(target
));
2839 /* general error checking */
2841 if (compressed_texture_error_check(ctx
, dims
, target
, level
,
2843 width
, height
, depth
,
2848 if (texture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2849 format
, type
, width
, height
, depth
, border
))
2853 /* Here we convert a cpal compressed image into a regular glTexImage2D
2854 * call by decompressing the texture. If we really want to support cpal
2855 * textures in any driver this would have to be changed.
2857 if (ctx
->API
== API_OPENGLES
&& compressed
&& dims
== 2) {
2858 switch (internalFormat
) {
2859 case GL_PALETTE4_RGB8_OES
:
2860 case GL_PALETTE4_RGBA8_OES
:
2861 case GL_PALETTE4_R5_G6_B5_OES
:
2862 case GL_PALETTE4_RGBA4_OES
:
2863 case GL_PALETTE4_RGB5_A1_OES
:
2864 case GL_PALETTE8_RGB8_OES
:
2865 case GL_PALETTE8_RGBA8_OES
:
2866 case GL_PALETTE8_R5_G6_B5_OES
:
2867 case GL_PALETTE8_RGBA4_OES
:
2868 case GL_PALETTE8_RGB5_A1_OES
:
2869 _mesa_cpal_compressed_teximage2d(target
, level
, internalFormat
,
2870 width
, height
, imageSize
, pixels
);
2875 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2878 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
2879 internalFormat
, format
, type
);
2880 assert(texFormat
!= MESA_FORMAT_NONE
);
2882 /* check that width, height, depth are legal for the mipmap level */
2883 dimensionsOK
= _mesa_legal_texture_dimensions(ctx
, target
, level
, width
,
2884 height
, depth
, border
);
2886 /* check that the texture won't take too much memory, etc */
2887 sizeOK
= ctx
->Driver
.TestProxyTexImage(ctx
, _mesa_get_proxy_target(target
),
2889 width
, height
, depth
, border
);
2891 if (_mesa_is_proxy_texture(target
)) {
2892 /* Proxy texture: just clear or set state depending on error checking */
2893 struct gl_texture_image
*texImage
=
2894 get_proxy_tex_image(ctx
, target
, level
);
2897 return; /* GL_OUT_OF_MEMORY already recorded */
2899 if (dimensionsOK
&& sizeOK
) {
2900 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, depth
,
2901 border
, internalFormat
, texFormat
);
2904 clear_teximage_fields(texImage
);
2908 /* non-proxy target */
2909 const GLuint face
= _mesa_tex_target_to_face(target
);
2910 struct gl_texture_image
*texImage
;
2912 if (!dimensionsOK
) {
2913 _mesa_error(ctx
, GL_INVALID_VALUE
,
2914 "glTexImage%uD(invalid width or height or depth)",
2920 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
2921 "glTexImage%uD(image too large)", dims
);
2925 /* Allow a hardware driver to just strip out the border, to provide
2926 * reliable but slightly incorrect hardware rendering instead of
2927 * rarely-tested software fallback rendering.
2929 if (border
&& ctx
->Const
.StripTextureBorder
) {
2930 strip_texture_border(target
, &width
, &height
, &depth
, unpack
,
2933 unpack
= &unpack_no_border
;
2936 if (ctx
->NewState
& _NEW_PIXEL
)
2937 _mesa_update_state(ctx
);
2939 _mesa_lock_texture(ctx
, texObj
);
2941 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
2944 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s%uD", func
, dims
);
2947 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
2949 _mesa_init_teximage_fields(ctx
, texImage
,
2950 width
, height
, depth
,
2951 border
, internalFormat
, texFormat
);
2953 /* Give the texture to the driver. <pixels> may be null. */
2955 ctx
->Driver
.CompressedTexImage(ctx
, dims
, texImage
,
2959 ctx
->Driver
.TexImage(ctx
, dims
, texImage
, format
,
2960 type
, pixels
, unpack
);
2963 check_gen_mipmap(ctx
, target
, texObj
, level
);
2965 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
2967 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
2970 _mesa_unlock_texture(ctx
, texObj
);
2977 * Called from the API. Note that width includes the border.
2980 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalFormat
,
2981 GLsizei width
, GLint border
, GLenum format
,
2982 GLenum type
, const GLvoid
*pixels
)
2984 GET_CURRENT_CONTEXT(ctx
);
2985 teximage(ctx
, GL_FALSE
, 1, target
, level
, internalFormat
, width
, 1, 1,
2986 border
, format
, type
, 0, pixels
);
2991 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalFormat
,
2992 GLsizei width
, GLsizei height
, GLint border
,
2993 GLenum format
, GLenum type
,
2994 const GLvoid
*pixels
)
2996 GET_CURRENT_CONTEXT(ctx
);
2997 teximage(ctx
, GL_FALSE
, 2, target
, level
, internalFormat
, width
, height
, 1,
2998 border
, format
, type
, 0, pixels
);
3003 * Called by the API or display list executor.
3004 * Note that width and height include the border.
3007 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalFormat
,
3008 GLsizei width
, GLsizei height
, GLsizei depth
,
3009 GLint border
, GLenum format
, GLenum type
,
3010 const GLvoid
*pixels
)
3012 GET_CURRENT_CONTEXT(ctx
);
3013 teximage(ctx
, GL_FALSE
, 3, target
, level
, internalFormat
,
3014 width
, height
, depth
,
3015 border
, format
, type
, 0, pixels
);
3020 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalFormat
,
3021 GLsizei width
, GLsizei height
, GLsizei depth
,
3022 GLint border
, GLenum format
, GLenum type
,
3023 const GLvoid
*pixels
)
3025 _mesa_TexImage3D(target
, level
, (GLint
) internalFormat
, width
, height
,
3026 depth
, border
, format
, type
, pixels
);
3031 _mesa_EGLImageTargetTexture2DOES (GLenum target
, GLeglImageOES image
)
3033 struct gl_texture_object
*texObj
;
3034 struct gl_texture_image
*texImage
;
3036 GET_CURRENT_CONTEXT(ctx
);
3037 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3041 valid_target
= ctx
->Extensions
.OES_EGL_image
;
3043 case GL_TEXTURE_EXTERNAL_OES
:
3044 valid_target
= ctx
->Extensions
.OES_EGL_image_external
;
3047 valid_target
= false;
3051 if (!valid_target
) {
3052 _mesa_error(ctx
, GL_INVALID_ENUM
,
3053 "glEGLImageTargetTexture2D(target=%d)", target
);
3057 if (ctx
->NewState
& _NEW_PIXEL
)
3058 _mesa_update_state(ctx
);
3060 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3061 _mesa_lock_texture(ctx
, texObj
);
3063 if (texObj
->Immutable
) {
3064 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3065 "glEGLImageTargetTexture2D(texture is immutable)");
3066 _mesa_unlock_texture(ctx
, texObj
);
3070 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
3072 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glEGLImageTargetTexture2D");
3074 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3076 ctx
->Driver
.EGLImageTargetTexture2D(ctx
, target
,
3077 texObj
, texImage
, image
);
3079 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3081 _mesa_unlock_texture(ctx
, texObj
);
3088 * Implement all the glTexSubImage1/2/3D() functions.
3091 texsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3092 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3093 GLsizei width
, GLsizei height
, GLsizei depth
,
3094 GLenum format
, GLenum type
, const GLvoid
*pixels
)
3096 struct gl_texture_object
*texObj
;
3097 struct gl_texture_image
*texImage
;
3099 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3101 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3102 _mesa_debug(ctx
, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
3104 _mesa_lookup_enum_by_nr(target
), level
,
3105 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3106 _mesa_lookup_enum_by_nr(format
),
3107 _mesa_lookup_enum_by_nr(type
), pixels
);
3109 /* check target (proxies not allowed) */
3110 if (!legal_texsubimage_target(ctx
, dims
, target
)) {
3111 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
3112 dims
, _mesa_lookup_enum_by_nr(target
));
3116 if (ctx
->NewState
& _NEW_PIXEL
)
3117 _mesa_update_state(ctx
);
3119 if (texsubimage_error_check(ctx
, dims
, target
, level
,
3120 xoffset
, yoffset
, zoffset
,
3121 width
, height
, depth
, format
, type
)) {
3122 return; /* error was detected */
3125 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3127 _mesa_lock_texture(ctx
, texObj
);
3129 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3131 if (width
> 0 && height
> 0 && depth
> 0) {
3132 /* If we have a border, offset=-1 is legal. Bias by border width. */
3135 if (target
!= GL_TEXTURE_2D_ARRAY
)
3136 zoffset
+= texImage
->Border
;
3139 if (target
!= GL_TEXTURE_1D_ARRAY
)
3140 yoffset
+= texImage
->Border
;
3143 xoffset
+= texImage
->Border
;
3146 ctx
->Driver
.TexSubImage(ctx
, dims
, texImage
,
3147 xoffset
, yoffset
, zoffset
,
3148 width
, height
, depth
,
3149 format
, type
, pixels
, &ctx
->Unpack
);
3151 check_gen_mipmap(ctx
, target
, texObj
, level
);
3153 ctx
->NewState
|= _NEW_TEXTURE
;
3156 _mesa_unlock_texture(ctx
, texObj
);
3161 _mesa_TexSubImage1D( GLenum target
, GLint level
,
3162 GLint xoffset
, GLsizei width
,
3163 GLenum format
, GLenum type
,
3164 const GLvoid
*pixels
)
3166 GET_CURRENT_CONTEXT(ctx
);
3167 texsubimage(ctx
, 1, target
, level
,
3170 format
, type
, pixels
);
3175 _mesa_TexSubImage2D( GLenum target
, GLint level
,
3176 GLint xoffset
, GLint yoffset
,
3177 GLsizei width
, GLsizei height
,
3178 GLenum format
, GLenum type
,
3179 const GLvoid
*pixels
)
3181 GET_CURRENT_CONTEXT(ctx
);
3182 texsubimage(ctx
, 2, target
, level
,
3183 xoffset
, yoffset
, 0,
3185 format
, type
, pixels
);
3191 _mesa_TexSubImage3D( GLenum target
, GLint level
,
3192 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3193 GLsizei width
, GLsizei height
, GLsizei depth
,
3194 GLenum format
, GLenum type
,
3195 const GLvoid
*pixels
)
3197 GET_CURRENT_CONTEXT(ctx
);
3198 texsubimage(ctx
, 3, target
, level
,
3199 xoffset
, yoffset
, zoffset
,
3200 width
, height
, depth
,
3201 format
, type
, pixels
);
3207 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3208 * from. This depends on whether the texture contains color or depth values.
3210 static struct gl_renderbuffer
*
3211 get_copy_tex_image_source(struct gl_context
*ctx
, gl_format texFormat
)
3213 if (_mesa_get_format_bits(texFormat
, GL_DEPTH_BITS
) > 0) {
3214 /* reading from depth/stencil buffer */
3215 return ctx
->ReadBuffer
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
3218 /* copying from color buffer */
3219 return ctx
->ReadBuffer
->_ColorReadBuffer
;
3226 * Implement the glCopyTexImage1/2D() functions.
3229 copyteximage(struct gl_context
*ctx
, GLuint dims
,
3230 GLenum target
, GLint level
, GLenum internalFormat
,
3231 GLint x
, GLint y
, GLsizei width
, GLsizei height
, GLint border
)
3233 struct gl_texture_object
*texObj
;
3234 struct gl_texture_image
*texImage
;
3235 const GLuint face
= _mesa_tex_target_to_face(target
);
3236 gl_format texFormat
;
3238 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3240 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3241 _mesa_debug(ctx
, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3243 _mesa_lookup_enum_by_nr(target
), level
,
3244 _mesa_lookup_enum_by_nr(internalFormat
),
3245 x
, y
, width
, height
, border
);
3247 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3248 _mesa_update_state(ctx
);
3250 if (copytexture_error_check(ctx
, dims
, target
, level
, internalFormat
,
3251 width
, height
, border
))
3254 if (!_mesa_legal_texture_dimensions(ctx
, target
, level
, width
, height
,
3256 _mesa_error(ctx
, GL_INVALID_VALUE
,
3257 "glCopyTexImage%uD(invalid width or height)", dims
);
3261 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3264 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3265 internalFormat
, GL_NONE
, GL_NONE
);
3266 assert(texFormat
!= MESA_FORMAT_NONE
);
3268 if (!ctx
->Driver
.TestProxyTexImage(ctx
, _mesa_get_proxy_target(target
),
3270 width
, height
, 1, border
)) {
3271 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3272 "glCopyTexImage%uD(image too large)", dims
);
3276 if (border
&& ctx
->Const
.StripTextureBorder
) {
3278 width
-= border
* 2;
3281 height
-= border
* 2;
3286 _mesa_lock_texture(ctx
, texObj
);
3288 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3291 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
3294 GLint srcX
= x
, srcY
= y
, dstX
= 0, dstY
= 0, dstZ
= 0;
3296 /* Free old texture image */
3297 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3299 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, 1,
3300 border
, internalFormat
, texFormat
);
3302 /* Allocate texture memory (no pixel data yet) */
3303 ctx
->Driver
.TexImage(ctx
, dims
, texImage
,
3305 NULL
, &ctx
->Unpack
);
3307 if (_mesa_clip_copytexsubimage(ctx
, &dstX
, &dstY
, &srcX
, &srcY
,
3309 struct gl_renderbuffer
*srcRb
=
3310 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3312 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
, dstX
, dstY
, dstZ
,
3313 srcRb
, srcX
, srcY
, width
, height
);
3316 check_gen_mipmap(ctx
, target
, texObj
, level
);
3318 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3320 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3323 _mesa_unlock_texture(ctx
, texObj
);
3329 _mesa_CopyTexImage1D( GLenum target
, GLint level
,
3330 GLenum internalFormat
,
3332 GLsizei width
, GLint border
)
3334 GET_CURRENT_CONTEXT(ctx
);
3335 copyteximage(ctx
, 1, target
, level
, internalFormat
, x
, y
, width
, 1, border
);
3341 _mesa_CopyTexImage2D( GLenum target
, GLint level
, GLenum internalFormat
,
3342 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
3345 GET_CURRENT_CONTEXT(ctx
);
3346 copyteximage(ctx
, 2, target
, level
, internalFormat
,
3347 x
, y
, width
, height
, border
);
3353 * Implementation for glCopyTexSubImage1/2/3D() functions.
3356 copytexsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3357 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3358 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3360 struct gl_texture_object
*texObj
;
3361 struct gl_texture_image
*texImage
;
3363 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3365 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3366 _mesa_debug(ctx
, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
3368 _mesa_lookup_enum_by_nr(target
),
3369 level
, xoffset
, yoffset
, zoffset
, x
, y
, width
, height
);
3371 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3372 _mesa_update_state(ctx
);
3374 if (copytexsubimage_error_check(ctx
, dims
, target
, level
,
3375 xoffset
, yoffset
, zoffset
, width
, height
)) {
3379 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3381 _mesa_lock_texture(ctx
, texObj
);
3383 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3385 /* If we have a border, offset=-1 is legal. Bias by border width. */
3388 if (target
!= GL_TEXTURE_2D_ARRAY
)
3389 zoffset
+= texImage
->Border
;
3392 if (target
!= GL_TEXTURE_1D_ARRAY
)
3393 yoffset
+= texImage
->Border
;
3396 xoffset
+= texImage
->Border
;
3399 if (_mesa_clip_copytexsubimage(ctx
, &xoffset
, &yoffset
, &x
, &y
,
3401 struct gl_renderbuffer
*srcRb
=
3402 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3404 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
,
3405 xoffset
, yoffset
, zoffset
,
3406 srcRb
, x
, y
, width
, height
);
3408 check_gen_mipmap(ctx
, target
, texObj
, level
);
3410 ctx
->NewState
|= _NEW_TEXTURE
;
3413 _mesa_unlock_texture(ctx
, texObj
);
3418 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
,
3419 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
3421 GET_CURRENT_CONTEXT(ctx
);
3422 copytexsubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, x
, y
, width
, 1);
3428 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
3429 GLint xoffset
, GLint yoffset
,
3430 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3432 GET_CURRENT_CONTEXT(ctx
);
3433 copytexsubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0, x
, y
,
3440 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
3441 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3442 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3444 GET_CURRENT_CONTEXT(ctx
);
3445 copytexsubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
3446 x
, y
, width
, height
);
3452 /**********************************************************************/
3453 /****** Compressed Textures ******/
3454 /**********************************************************************/
3458 * Error checking for glCompressedTexSubImage[123]D().
3459 * \return error code or GL_NO_ERROR.
3462 compressed_subtexture_error_check(struct gl_context
*ctx
, GLint dims
,
3463 GLenum target
, GLint level
,
3464 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3465 GLsizei width
, GLsizei height
, GLsizei depth
,
3466 GLenum format
, GLsizei imageSize
)
3468 struct gl_texture_object
*texObj
;
3469 struct gl_texture_image
*texImage
;
3476 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
3477 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
3478 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
3479 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
3480 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
3481 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
3485 targetOK
= GL_FALSE
;
3489 assert(dims
== 1 || dims
== 3);
3490 /* no 1D or 3D compressed textures at this time */
3491 targetOK
= GL_FALSE
;
3495 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCompressedTexImage%uD(target)",
3500 /* this will catch any invalid compressed format token */
3501 if (!_mesa_is_compressed_format(ctx
, format
)) {
3502 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCompressedTexImage%uD(format)",
3507 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
3508 _mesa_error(ctx
, GL_INVALID_VALUE
, "glCompressedTexImage%uD(level=%d)",
3513 expectedSize
= compressed_tex_size(width
, height
, depth
, format
);
3514 if (expectedSize
!= imageSize
) {
3515 _mesa_error(ctx
, GL_INVALID_VALUE
, "glCompressedTexImage%uD(size=%d)",
3520 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3522 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3523 "glCompressedTexSubImage%uD()", dims
);
3527 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3529 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3530 "glCompressedTexSubImage%uD(invalid texture image)", dims
);
3534 if ((GLint
) format
!= texImage
->InternalFormat
) {
3535 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3536 "glCompressedTexSubImage%uD(format=0x%x)", dims
, format
);
3540 if (compressedteximage_only_format(ctx
, format
)) {
3541 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3542 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)"
3547 if (error_check_subtexture_dimensions(ctx
, "glCompressedTexSubImage", dims
,
3548 texImage
, xoffset
, yoffset
, zoffset
,
3549 width
, height
, depth
)) {
3558 _mesa_CompressedTexImage1DARB(GLenum target
, GLint level
,
3559 GLenum internalFormat
, GLsizei width
,
3560 GLint border
, GLsizei imageSize
,
3563 GET_CURRENT_CONTEXT(ctx
);
3564 teximage(ctx
, GL_TRUE
, 1, target
, level
, internalFormat
,
3565 width
, 1, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3570 _mesa_CompressedTexImage2DARB(GLenum target
, GLint level
,
3571 GLenum internalFormat
, GLsizei width
,
3572 GLsizei height
, GLint border
, GLsizei imageSize
,
3575 GET_CURRENT_CONTEXT(ctx
);
3576 teximage(ctx
, GL_TRUE
, 2, target
, level
, internalFormat
,
3577 width
, height
, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3582 _mesa_CompressedTexImage3DARB(GLenum target
, GLint level
,
3583 GLenum internalFormat
, GLsizei width
,
3584 GLsizei height
, GLsizei depth
, GLint border
,
3585 GLsizei imageSize
, const GLvoid
*data
)
3587 GET_CURRENT_CONTEXT(ctx
);
3588 teximage(ctx
, GL_TRUE
, 3, target
, level
, internalFormat
,
3589 width
, height
, depth
, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3594 * Common helper for glCompressedTexSubImage1/2/3D().
3597 compressed_tex_sub_image(GLuint dims
, GLenum target
, GLint level
,
3598 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3599 GLsizei width
, GLsizei height
, GLsizei depth
,
3600 GLenum format
, GLsizei imageSize
, const GLvoid
*data
)
3602 struct gl_texture_object
*texObj
;
3603 struct gl_texture_image
*texImage
;
3604 GET_CURRENT_CONTEXT(ctx
);
3605 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3607 if (compressed_subtexture_error_check(ctx
, dims
, target
, level
,
3608 xoffset
, yoffset
, zoffset
,
3609 width
, height
, depth
,
3610 format
, imageSize
)) {
3614 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3616 _mesa_lock_texture(ctx
, texObj
);
3618 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3621 if (width
> 0 && height
> 0 && depth
> 0) {
3622 ctx
->Driver
.CompressedTexSubImage(ctx
, dims
, texImage
,
3623 xoffset
, yoffset
, zoffset
,
3624 width
, height
, depth
,
3625 format
, imageSize
, data
);
3627 check_gen_mipmap(ctx
, target
, texObj
, level
);
3629 ctx
->NewState
|= _NEW_TEXTURE
;
3632 _mesa_unlock_texture(ctx
, texObj
);
3637 _mesa_CompressedTexSubImage1DARB(GLenum target
, GLint level
, GLint xoffset
,
3638 GLsizei width
, GLenum format
,
3639 GLsizei imageSize
, const GLvoid
*data
)
3641 compressed_tex_sub_image(1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
3642 format
, imageSize
, data
);
3647 _mesa_CompressedTexSubImage2DARB(GLenum target
, GLint level
, GLint xoffset
,
3648 GLint yoffset
, GLsizei width
, GLsizei height
,
3649 GLenum format
, GLsizei imageSize
,
3652 compressed_tex_sub_image(2, target
, level
, xoffset
, yoffset
, 0,
3653 width
, height
, 1, format
, imageSize
, data
);
3658 _mesa_CompressedTexSubImage3DARB(GLenum target
, GLint level
, GLint xoffset
,
3659 GLint yoffset
, GLint zoffset
, GLsizei width
,
3660 GLsizei height
, GLsizei depth
, GLenum format
,
3661 GLsizei imageSize
, const GLvoid
*data
)
3663 compressed_tex_sub_image(3, target
, level
, xoffset
, yoffset
, zoffset
,
3664 width
, height
, depth
, format
, imageSize
, data
);
3668 get_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3670 switch (internalFormat
) {
3672 return MESA_FORMAT_A8
;
3674 return MESA_FORMAT_A16
;
3675 case GL_ALPHA16F_ARB
:
3676 return MESA_FORMAT_ALPHA_FLOAT16
;
3677 case GL_ALPHA32F_ARB
:
3678 return MESA_FORMAT_ALPHA_FLOAT32
;
3679 case GL_ALPHA8I_EXT
:
3680 return MESA_FORMAT_ALPHA_INT8
;
3681 case GL_ALPHA16I_EXT
:
3682 return MESA_FORMAT_ALPHA_INT16
;
3683 case GL_ALPHA32I_EXT
:
3684 return MESA_FORMAT_ALPHA_INT32
;
3685 case GL_ALPHA8UI_EXT
:
3686 return MESA_FORMAT_ALPHA_UINT8
;
3687 case GL_ALPHA16UI_EXT
:
3688 return MESA_FORMAT_ALPHA_UINT16
;
3689 case GL_ALPHA32UI_EXT
:
3690 return MESA_FORMAT_ALPHA_UINT32
;
3692 return MESA_FORMAT_L8
;
3693 case GL_LUMINANCE16
:
3694 return MESA_FORMAT_L16
;
3695 case GL_LUMINANCE16F_ARB
:
3696 return MESA_FORMAT_LUMINANCE_FLOAT16
;
3697 case GL_LUMINANCE32F_ARB
:
3698 return MESA_FORMAT_LUMINANCE_FLOAT32
;
3699 case GL_LUMINANCE8I_EXT
:
3700 return MESA_FORMAT_LUMINANCE_INT8
;
3701 case GL_LUMINANCE16I_EXT
:
3702 return MESA_FORMAT_LUMINANCE_INT16
;
3703 case GL_LUMINANCE32I_EXT
:
3704 return MESA_FORMAT_LUMINANCE_INT32
;
3705 case GL_LUMINANCE8UI_EXT
:
3706 return MESA_FORMAT_LUMINANCE_UINT8
;
3707 case GL_LUMINANCE16UI_EXT
:
3708 return MESA_FORMAT_LUMINANCE_UINT16
;
3709 case GL_LUMINANCE32UI_EXT
:
3710 return MESA_FORMAT_LUMINANCE_UINT32
;
3711 case GL_LUMINANCE8_ALPHA8
:
3712 return MESA_FORMAT_AL88
;
3713 case GL_LUMINANCE16_ALPHA16
:
3714 return MESA_FORMAT_AL1616
;
3715 case GL_LUMINANCE_ALPHA16F_ARB
:
3716 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
;
3717 case GL_LUMINANCE_ALPHA32F_ARB
:
3718 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
;
3719 case GL_LUMINANCE_ALPHA8I_EXT
:
3720 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3721 case GL_LUMINANCE_ALPHA16I_EXT
:
3722 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3723 case GL_LUMINANCE_ALPHA32I_EXT
:
3724 return MESA_FORMAT_LUMINANCE_ALPHA_INT16
;
3725 case GL_LUMINANCE_ALPHA8UI_EXT
:
3726 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8
;
3727 case GL_LUMINANCE_ALPHA16UI_EXT
:
3728 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16
;
3729 case GL_LUMINANCE_ALPHA32UI_EXT
:
3730 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32
;
3732 return MESA_FORMAT_I8
;
3733 case GL_INTENSITY16
:
3734 return MESA_FORMAT_I16
;
3735 case GL_INTENSITY16F_ARB
:
3736 return MESA_FORMAT_INTENSITY_FLOAT16
;
3737 case GL_INTENSITY32F_ARB
:
3738 return MESA_FORMAT_INTENSITY_FLOAT32
;
3739 case GL_INTENSITY8I_EXT
:
3740 return MESA_FORMAT_INTENSITY_INT8
;
3741 case GL_INTENSITY16I_EXT
:
3742 return MESA_FORMAT_INTENSITY_INT16
;
3743 case GL_INTENSITY32I_EXT
:
3744 return MESA_FORMAT_INTENSITY_INT32
;
3745 case GL_INTENSITY8UI_EXT
:
3746 return MESA_FORMAT_INTENSITY_UINT8
;
3747 case GL_INTENSITY16UI_EXT
:
3748 return MESA_FORMAT_INTENSITY_UINT16
;
3749 case GL_INTENSITY32UI_EXT
:
3750 return MESA_FORMAT_INTENSITY_UINT32
;
3752 return MESA_FORMAT_RGBA8888_REV
;
3754 return MESA_FORMAT_RGBA_16
;
3755 case GL_RGBA16F_ARB
:
3756 return MESA_FORMAT_RGBA_FLOAT16
;
3757 case GL_RGBA32F_ARB
:
3758 return MESA_FORMAT_RGBA_FLOAT32
;
3760 return MESA_FORMAT_RGBA_INT8
;
3761 case GL_RGBA16I_EXT
:
3762 return MESA_FORMAT_RGBA_INT16
;
3763 case GL_RGBA32I_EXT
:
3764 return MESA_FORMAT_RGBA_INT32
;
3765 case GL_RGBA8UI_EXT
:
3766 return MESA_FORMAT_RGBA_UINT8
;
3767 case GL_RGBA16UI_EXT
:
3768 return MESA_FORMAT_RGBA_UINT16
;
3769 case GL_RGBA32UI_EXT
:
3770 return MESA_FORMAT_RGBA_UINT32
;
3773 return MESA_FORMAT_GR88
;
3775 return MESA_FORMAT_RG1616
;
3777 return MESA_FORMAT_RG_FLOAT16
;
3779 return MESA_FORMAT_RG_FLOAT32
;
3781 return MESA_FORMAT_RG_INT8
;
3783 return MESA_FORMAT_RG_INT16
;
3785 return MESA_FORMAT_RG_INT32
;
3787 return MESA_FORMAT_RG_UINT8
;
3789 return MESA_FORMAT_RG_UINT16
;
3791 return MESA_FORMAT_RG_UINT32
;
3794 return MESA_FORMAT_R8
;
3796 return MESA_FORMAT_R16
;
3798 return MESA_FORMAT_R_FLOAT16
;
3800 return MESA_FORMAT_R_FLOAT32
;
3802 return MESA_FORMAT_R_INT8
;
3804 return MESA_FORMAT_R_INT16
;
3806 return MESA_FORMAT_R_INT32
;
3808 return MESA_FORMAT_R_UINT8
;
3810 return MESA_FORMAT_R_UINT16
;
3812 return MESA_FORMAT_R_UINT32
;
3815 return MESA_FORMAT_NONE
;
3820 validate_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3822 gl_format format
= get_texbuffer_format(ctx
, internalFormat
);
3825 if (format
== MESA_FORMAT_NONE
)
3826 return MESA_FORMAT_NONE
;
3828 datatype
= _mesa_get_format_datatype(format
);
3829 if (datatype
== GL_FLOAT
&& !ctx
->Extensions
.ARB_texture_float
)
3830 return MESA_FORMAT_NONE
;
3832 if (datatype
== GL_HALF_FLOAT
&& !ctx
->Extensions
.ARB_half_float_pixel
)
3833 return MESA_FORMAT_NONE
;
3835 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make
3836 * any mention of R/RG formats, but they appear in the GL 3.1 core
3839 if (ctx
->Version
<= 30) {
3840 GLenum base_format
= _mesa_get_format_base_format(format
);
3842 if (base_format
== GL_R
|| base_format
== GL_RG
)
3843 return MESA_FORMAT_NONE
;
3849 /** GL_ARB_texture_buffer_object */
3851 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
)
3853 struct gl_texture_object
*texObj
;
3854 struct gl_buffer_object
*bufObj
;
3857 GET_CURRENT_CONTEXT(ctx
);
3858 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3860 if (!(ctx
->Extensions
.ARB_texture_buffer_object
3861 && _mesa_is_desktop_gl(ctx
))) {
3862 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer");
3866 if (target
!= GL_TEXTURE_BUFFER_ARB
) {
3867 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(target)");
3871 format
= validate_texbuffer_format(ctx
, internalFormat
);
3872 if (format
== MESA_FORMAT_NONE
) {
3873 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(internalFormat 0x%x)",
3878 bufObj
= _mesa_lookup_bufferobj(ctx
, buffer
);
3879 if (buffer
&& !bufObj
) {
3880 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer(buffer %u)", buffer
);
3884 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3886 _mesa_lock_texture(ctx
, texObj
);
3888 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, bufObj
);
3889 texObj
->BufferObjectFormat
= internalFormat
;
3890 texObj
->_BufferObjectFormat
= format
;
3892 _mesa_unlock_texture(ctx
, texObj
);