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, width, height for glTexSubImage,
1347 * glCopyTexSubImage and glCompressedTexSubImage.
1348 * Basically, check that the subregion is aligned to the compressed format's
1349 * block size. See comments in function for more info.
1350 * \return GL_TRUE if error found, GL_FALSE otherwise.
1353 error_check_subtexture_dimensions(struct gl_context
*ctx
,
1354 const char *function
,
1356 gl_format texFormat
,
1357 GLint xoffset
, GLint yoffset
,
1358 GLsizei subWidth
, GLsizei subHeight
,
1359 GLsizei texWidth
, GLsizei texHeight
)
1364 * The OpenGL spec (and GL_ARB_texture_compression) says only whole
1365 * compressed texture images can be updated. But, that restriction may be
1366 * relaxed for particular compressed formats. At this time, all the
1367 * compressed formats supported by Mesa allow sub-textures to be updated
1368 * along compressed block boundaries.
1370 _mesa_get_format_block_size(texFormat
, &bw
, &bh
);
1372 /* offset must be multiple of block size */
1373 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0)) {
1374 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1375 "%s%dD(xoffset = %d, yoffset = %d)",
1376 function
, dims
, xoffset
, yoffset
);
1380 /* size must be multiple of bw by bh or equal to whole texture size */
1381 if ((subWidth
% bw
!= 0) && subWidth
!= texWidth
) {
1382 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1383 "%s%dD(width = %d)", function
, dims
, subWidth
);
1387 if ((subHeight
% bh
!= 0) && subHeight
!= texHeight
) {
1388 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1389 "%s%dD(height = %d)", function
, dims
, subHeight
);
1400 * This is the fallback for Driver.TestProxyTexImage() for doing device-
1401 * specific texture image size checks.
1403 * A hardware driver might override this function if, for example, the
1404 * max 3D texture size is 512x512x64 (i.e. not a cube).
1406 * Note that width, height, depth == 0 is not an error. However, a
1407 * texture with zero width/height/depth will be considered "incomplete"
1408 * and texturing will effectively be disabled.
1410 * \param target any texture target/type
1411 * \param level as passed to glTexImage
1412 * \param format the MESA_FORMAT_x for the tex image
1413 * \param width as passed to glTexImage
1414 * \param height as passed to glTexImage
1415 * \param depth as passed to glTexImage
1416 * \param border as passed to glTexImage
1417 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1420 _mesa_test_proxy_teximage(struct gl_context
*ctx
, GLenum target
, GLint level
,
1422 GLint width
, GLint height
, GLint depth
, GLint border
)
1424 /* We just check if the image size is less than MaxTextureMbytes.
1425 * Some drivers may do more specific checks.
1427 uint64_t bytes
= _mesa_format_image_size64(format
, width
, height
, depth
);
1428 uint64_t mbytes
= bytes
/ (1024 * 1024); /* convert to MB */
1429 mbytes
*= _mesa_num_tex_faces(target
);
1430 return mbytes
<= (uint64_t) ctx
->Const
.MaxTextureMbytes
;
1435 * Return true if the format is only valid for glCompressedTexImage.
1438 compressedteximage_only_format(const struct gl_context
*ctx
, GLenum format
)
1441 case GL_ETC1_RGB8_OES
:
1442 case GL_PALETTE4_RGB8_OES
:
1443 case GL_PALETTE4_RGBA8_OES
:
1444 case GL_PALETTE4_R5_G6_B5_OES
:
1445 case GL_PALETTE4_RGBA4_OES
:
1446 case GL_PALETTE4_RGB5_A1_OES
:
1447 case GL_PALETTE8_RGB8_OES
:
1448 case GL_PALETTE8_RGBA8_OES
:
1449 case GL_PALETTE8_R5_G6_B5_OES
:
1450 case GL_PALETTE8_RGBA4_OES
:
1451 case GL_PALETTE8_RGB5_A1_OES
:
1460 * Helper function to determine whether a target and specific compression
1461 * format are supported.
1464 target_can_be_compressed(const struct gl_context
*ctx
, GLenum target
,
1467 (void) intFormat
; /* not used yet */
1471 case GL_PROXY_TEXTURE_2D
:
1472 return GL_TRUE
; /* true for any compressed format so far */
1473 case GL_PROXY_TEXTURE_CUBE_MAP
:
1474 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1475 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1476 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1477 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1478 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1479 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1480 return ctx
->Extensions
.ARB_texture_cube_map
;
1481 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1482 case GL_TEXTURE_2D_ARRAY_EXT
:
1483 return (ctx
->Extensions
.MESA_texture_array
||
1484 ctx
->Extensions
.EXT_texture_array
);
1492 * Check if the given texture target value is legal for a
1493 * glTexImage1/2/3D call.
1496 legal_teximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1502 case GL_PROXY_TEXTURE_1D
:
1503 return _mesa_is_desktop_gl(ctx
);
1511 case GL_PROXY_TEXTURE_2D
:
1512 return _mesa_is_desktop_gl(ctx
);
1513 case GL_PROXY_TEXTURE_CUBE_MAP
:
1514 return _mesa_is_desktop_gl(ctx
)
1515 && ctx
->Extensions
.ARB_texture_cube_map
;
1516 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1517 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1518 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1519 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1520 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1521 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1522 return ctx
->Extensions
.ARB_texture_cube_map
;
1523 case GL_TEXTURE_RECTANGLE_NV
:
1524 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1525 return _mesa_is_desktop_gl(ctx
)
1526 && ctx
->Extensions
.NV_texture_rectangle
;
1527 case GL_TEXTURE_1D_ARRAY_EXT
:
1528 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1529 return _mesa_is_desktop_gl(ctx
)
1530 && (ctx
->Extensions
.MESA_texture_array
||
1531 ctx
->Extensions
.EXT_texture_array
);
1539 case GL_PROXY_TEXTURE_3D
:
1540 return _mesa_is_desktop_gl(ctx
);
1541 case GL_TEXTURE_2D_ARRAY_EXT
:
1542 return (_mesa_is_desktop_gl(ctx
)
1543 && (ctx
->Extensions
.MESA_texture_array
||
1544 ctx
->Extensions
.EXT_texture_array
))
1545 || _mesa_is_gles3(ctx
);
1546 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1547 return _mesa_is_desktop_gl(ctx
)
1548 && (ctx
->Extensions
.MESA_texture_array
||
1549 ctx
->Extensions
.EXT_texture_array
);
1554 _mesa_problem(ctx
, "invalid dims=%u in legal_teximage_target()", dims
);
1561 * Check if the given texture target value is legal for a
1562 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1563 * The difference compared to legal_teximage_target() above is that
1564 * proxy targets are not supported.
1567 legal_texsubimage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1571 return _mesa_is_desktop_gl(ctx
) && target
== GL_TEXTURE_1D
;
1576 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1577 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1578 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1579 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1580 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1581 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1582 return ctx
->Extensions
.ARB_texture_cube_map
;
1583 case GL_TEXTURE_RECTANGLE_NV
:
1584 return _mesa_is_desktop_gl(ctx
)
1585 && ctx
->Extensions
.NV_texture_rectangle
;
1586 case GL_TEXTURE_1D_ARRAY_EXT
:
1587 return _mesa_is_desktop_gl(ctx
)
1588 && (ctx
->Extensions
.MESA_texture_array
||
1589 ctx
->Extensions
.EXT_texture_array
);
1597 case GL_TEXTURE_2D_ARRAY_EXT
:
1598 return (_mesa_is_desktop_gl(ctx
)
1599 && (ctx
->Extensions
.MESA_texture_array
||
1600 ctx
->Extensions
.EXT_texture_array
))
1601 || _mesa_is_gles3(ctx
);
1606 _mesa_problem(ctx
, "invalid dims=%u in legal_texsubimage_target()",
1614 * Helper function to determine if a texture object is mutable (in terms
1615 * of GL_ARB_texture_storage).
1618 mutable_tex_object(struct gl_context
*ctx
, GLenum target
)
1620 if (ctx
->Extensions
.ARB_texture_storage
) {
1621 struct gl_texture_object
*texObj
=
1622 _mesa_get_current_tex_object(ctx
, target
);
1623 return !texObj
->Immutable
;
1630 _mesa_es_error_check_format_and_type(GLenum format
, GLenum type
,
1631 unsigned dimensions
)
1633 bool type_valid
= true;
1638 case GL_LUMINANCE_ALPHA
:
1639 type_valid
= (type
== GL_UNSIGNED_BYTE
1641 || type
== GL_HALF_FLOAT_OES
);
1645 type_valid
= (type
== GL_UNSIGNED_BYTE
1646 || type
== GL_UNSIGNED_SHORT_5_6_5
1648 || type
== GL_HALF_FLOAT_OES
);
1652 type_valid
= (type
== GL_UNSIGNED_BYTE
1653 || type
== GL_UNSIGNED_SHORT_4_4_4_4
1654 || type
== GL_UNSIGNED_SHORT_5_5_5_1
1656 || type
== GL_HALF_FLOAT_OES
1657 || type
== GL_UNSIGNED_INT_2_10_10_10_REV
);
1660 case GL_DEPTH_COMPONENT
:
1661 /* This format is filtered against invalid dimensionalities elsewhere.
1663 type_valid
= (type
== GL_UNSIGNED_SHORT
1664 || type
== GL_UNSIGNED_INT
);
1667 case GL_DEPTH_STENCIL
:
1668 /* This format is filtered against invalid dimensionalities elsewhere.
1670 type_valid
= (type
== GL_UNSIGNED_INT_24_8
);
1674 type_valid
= (type
== GL_UNSIGNED_BYTE
);
1676 /* This feels like a bug in the EXT_texture_format_BGRA8888 spec, but
1677 * the format does not appear to be allowed for 3D textures in OpenGL
1680 if (dimensions
!= 2)
1681 return GL_INVALID_VALUE
;
1686 return GL_INVALID_VALUE
;
1689 return type_valid
? GL_NO_ERROR
: GL_INVALID_OPERATION
;
1695 * Return expected size of a compressed texture.
1698 compressed_tex_size(GLsizei width
, GLsizei height
, GLsizei depth
,
1701 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
1702 return _mesa_format_image_size(mesaFormat
, width
, height
, depth
);
1707 * Test the glTexImage[123]D() parameters for errors.
1709 * \param ctx GL context.
1710 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1711 * \param target texture target given by the user (already validated).
1712 * \param level image level given by the user.
1713 * \param internalFormat internal format given by the user.
1714 * \param format pixel data format given by the user.
1715 * \param type pixel data type given by the user.
1716 * \param width image width given by the user.
1717 * \param height image height given by the user.
1718 * \param depth image depth given by the user.
1719 * \param border image border given by the user.
1721 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1723 * Verifies each of the parameters against the constants specified in
1724 * __struct gl_contextRec::Const and the supported extensions, and according
1725 * to the OpenGL specification.
1726 * Note that we don't fully error-check the width, height, depth values
1727 * here. That's done in _mesa_legal_texture_dimensions() which is used
1728 * by several other GL entrypoints. Plus, texture dims have a special
1729 * interaction with proxy textures.
1732 texture_error_check( struct gl_context
*ctx
,
1733 GLuint dimensions
, GLenum target
,
1734 GLint level
, GLint internalFormat
,
1735 GLenum format
, GLenum type
,
1736 GLint width
, GLint height
,
1737 GLint depth
, GLint border
)
1739 GLboolean colorFormat
;
1742 /* Even though there are no color-index textures, we still have to support
1743 * uploading color-index data and remapping it to RGB via the
1744 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1746 const GLboolean indexFormat
= (format
== GL_COLOR_INDEX
);
1748 /* Note: for proxy textures, some error conditions immediately generate
1749 * a GL error in the usual way. But others do not generate a GL error.
1750 * Instead, they cause the width, height, depth, format fields of the
1751 * texture image to be zeroed-out. The GL spec seems to indicate that the
1752 * zero-out behaviour is only used in cases related to memory allocation.
1756 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
1757 _mesa_error(ctx
, GL_INVALID_VALUE
,
1758 "glTexImage%dD(level=%d)", dimensions
, level
);
1763 if (border
< 0 || border
> 1 ||
1764 ((ctx
->API
!= API_OPENGL
||
1765 target
== GL_TEXTURE_RECTANGLE_NV
||
1766 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1767 _mesa_error(ctx
, GL_INVALID_VALUE
,
1768 "glTexImage%dD(border=%d)", dimensions
, border
);
1772 if (width
< 0 || height
< 0 || depth
< 0) {
1773 _mesa_error(ctx
, GL_INVALID_VALUE
,
1774 "glTexImage%dD(width, height or depth < 0)", dimensions
);
1778 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1779 * combinations of format, internalFormat, and type that can be used.
1780 * Formats and types that require additional extensions (e.g., GL_FLOAT
1781 * requires GL_OES_texture_float) are filtered elsewhere.
1783 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
1784 if (format
!= internalFormat
) {
1785 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1786 "glTexImage%dD(format = %s, internalFormat = %s)",
1788 _mesa_lookup_enum_by_nr(format
),
1789 _mesa_lookup_enum_by_nr(internalFormat
));
1793 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
1794 if (err
!= GL_NO_ERROR
) {
1795 _mesa_error(ctx
, err
,
1796 "glTexImage%dD(format = %s, type = %s)",
1798 _mesa_lookup_enum_by_nr(format
),
1799 _mesa_lookup_enum_by_nr(type
));
1804 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
1805 _mesa_is_cube_face(target
)) && width
!= height
) {
1806 _mesa_error(ctx
, GL_INVALID_VALUE
,
1807 "glTexImage2D(cube width != height)");
1811 /* Check internalFormat */
1812 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1813 _mesa_error(ctx
, GL_INVALID_VALUE
,
1814 "glTexImage%dD(internalFormat=%s)",
1815 dimensions
, _mesa_lookup_enum_by_nr(internalFormat
));
1819 /* Check incoming image format and type */
1820 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
1821 if (err
!= GL_NO_ERROR
) {
1822 _mesa_error(ctx
, err
,
1823 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1824 dimensions
, format
, type
);
1828 /* make sure internal format and format basically agree */
1829 colorFormat
= _mesa_is_color_format(format
);
1830 if ((_mesa_is_color_format(internalFormat
) && !colorFormat
&& !indexFormat
) ||
1831 (_mesa_is_depth_format(internalFormat
) != _mesa_is_depth_format(format
)) ||
1832 (_mesa_is_ycbcr_format(internalFormat
) != _mesa_is_ycbcr_format(format
)) ||
1833 (_mesa_is_depthstencil_format(internalFormat
) != _mesa_is_depthstencil_format(format
)) ||
1834 (_mesa_is_dudv_format(internalFormat
) != _mesa_is_dudv_format(format
))) {
1835 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1836 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1837 dimensions
, internalFormat
, format
);
1841 /* additional checks for ycbcr textures */
1842 if (internalFormat
== GL_YCBCR_MESA
) {
1843 ASSERT(ctx
->Extensions
.MESA_ycbcr_texture
);
1844 if (type
!= GL_UNSIGNED_SHORT_8_8_MESA
&&
1845 type
!= GL_UNSIGNED_SHORT_8_8_REV_MESA
) {
1847 _mesa_snprintf(message
, sizeof(message
),
1848 "glTexImage%dD(format/type YCBCR mismatch)",
1850 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", message
);
1851 return GL_TRUE
; /* error */
1853 if (target
!= GL_TEXTURE_2D
&&
1854 target
!= GL_PROXY_TEXTURE_2D
&&
1855 target
!= GL_TEXTURE_RECTANGLE_NV
&&
1856 target
!= GL_PROXY_TEXTURE_RECTANGLE_NV
) {
1857 _mesa_error(ctx
, GL_INVALID_ENUM
,
1858 "glTexImage%dD(bad target for YCbCr texture)",
1864 _mesa_snprintf(message
, sizeof(message
),
1865 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1866 dimensions
, border
);
1867 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", message
);
1872 /* additional checks for depth textures */
1873 if (_mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_COMPONENT
) {
1874 /* Only 1D, 2D, rect, array and cube textures supported, not 3D
1875 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */
1876 if (target
!= GL_TEXTURE_1D
&&
1877 target
!= GL_PROXY_TEXTURE_1D
&&
1878 target
!= GL_TEXTURE_2D
&&
1879 target
!= GL_PROXY_TEXTURE_2D
&&
1880 target
!= GL_TEXTURE_1D_ARRAY
&&
1881 target
!= GL_PROXY_TEXTURE_1D_ARRAY
&&
1882 target
!= GL_TEXTURE_2D_ARRAY
&&
1883 target
!= GL_PROXY_TEXTURE_2D_ARRAY
&&
1884 target
!= GL_TEXTURE_RECTANGLE_ARB
&&
1885 target
!= GL_PROXY_TEXTURE_RECTANGLE_ARB
&&
1886 !((_mesa_is_cube_face(target
) || target
== GL_PROXY_TEXTURE_CUBE_MAP
) &&
1887 (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_gpu_shader4
))) {
1888 _mesa_error(ctx
, GL_INVALID_ENUM
,
1889 "glTexImage%dD(bad target for depth texture)",
1895 /* additional checks for compressed textures */
1896 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
1897 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1898 _mesa_error(ctx
, GL_INVALID_ENUM
,
1899 "glTexImage%dD(target can't be compressed)", dimensions
);
1902 if (compressedteximage_only_format(ctx
, internalFormat
)) {
1903 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1904 "glTexImage%dD(no compression for format)", dimensions
);
1908 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1909 "glTexImage%dD(border!=0)", dimensions
);
1914 /* additional checks for integer textures */
1915 if ((ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) &&
1916 (_mesa_is_enum_format_integer(format
) !=
1917 _mesa_is_enum_format_integer(internalFormat
))) {
1918 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1919 "glTexImage%dD(integer/non-integer format mismatch)",
1924 if (!mutable_tex_object(ctx
, target
)) {
1925 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1926 "glTexImage%dD(immutable texture)", dimensions
);
1930 /* if we get here, the parameters are OK */
1936 * Error checking for glCompressedTexImage[123]D().
1937 * Note that the width, height and depth values are not fully error checked
1939 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1942 compressed_texture_error_check(struct gl_context
*ctx
, GLint dimensions
,
1943 GLenum target
, GLint level
,
1944 GLenum internalFormat
, GLsizei width
,
1945 GLsizei height
, GLsizei depth
, GLint border
,
1948 const GLint maxLevels
= _mesa_max_texture_levels(ctx
, target
);
1950 GLenum choose_format
;
1952 GLenum proxy_format
;
1953 GLenum error
= GL_NO_ERROR
;
1954 char *reason
= ""; /* no error */
1956 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1958 error
= GL_INVALID_ENUM
;
1962 /* This will detect any invalid internalFormat value */
1963 if (!_mesa_is_compressed_format(ctx
, internalFormat
)) {
1964 reason
= "internalFormat";
1965 error
= GL_INVALID_ENUM
;
1969 switch (internalFormat
) {
1971 case GL_PALETTE4_RGB8_OES
:
1972 case GL_PALETTE4_RGBA8_OES
:
1973 case GL_PALETTE4_R5_G6_B5_OES
:
1974 case GL_PALETTE4_RGBA4_OES
:
1975 case GL_PALETTE4_RGB5_A1_OES
:
1976 case GL_PALETTE8_RGB8_OES
:
1977 case GL_PALETTE8_RGBA8_OES
:
1978 case GL_PALETTE8_R5_G6_B5_OES
:
1979 case GL_PALETTE8_RGBA4_OES
:
1980 case GL_PALETTE8_RGB5_A1_OES
:
1981 _mesa_cpal_compressed_format_type(internalFormat
, &choose_format
,
1983 proxy_format
= choose_format
;
1985 /* check level (note that level should be zero or less!) */
1986 if (level
> 0 || level
< -maxLevels
) {
1988 error
= GL_INVALID_VALUE
;
1992 if (dimensions
!= 2) {
1993 reason
= "compressed paletted textures must be 2D";
1994 error
= GL_INVALID_OPERATION
;
1998 /* Figure out the expected texture size (in bytes). This will be
1999 * checked against the actual size later.
2001 expectedSize
= _mesa_cpal_compressed_size(level
, internalFormat
,
2004 /* This is for the benefit of the TestProxyTexImage below. It expects
2005 * level to be non-negative. OES_compressed_paletted_texture uses a
2006 * weird mechanism where the level specified to glCompressedTexImage2D
2007 * is -(n-1) number of levels in the texture, and the data specifies the
2008 * complete mipmap stack. This is done to ensure the palette is the
2009 * same for all levels.
2016 choose_format
= GL_NONE
;
2017 choose_type
= GL_NONE
;
2018 proxy_format
= internalFormat
;
2021 if (level
< 0 || level
>= maxLevels
) {
2023 error
= GL_INVALID_VALUE
;
2027 /* Figure out the expected texture size (in bytes). This will be
2028 * checked against the actual size later.
2030 expectedSize
= compressed_tex_size(width
, height
, depth
, internalFormat
);
2034 /* This should really never fail */
2035 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
2036 reason
= "internalFormat";
2037 error
= GL_INVALID_ENUM
;
2041 /* No compressed formats support borders at this time */
2043 reason
= "border != 0";
2044 error
= GL_INVALID_VALUE
;
2048 /* For cube map, width must equal height */
2049 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
2050 _mesa_is_cube_face(target
)) && width
!= height
) {
2051 reason
= "width != height";
2052 error
= GL_INVALID_VALUE
;
2056 /* check image size against compression block size */
2057 /* XXX possibly move this into the _mesa_legal_texture_dimensions() func */
2059 gl_format texFormat
=
2060 ctx
->Driver
.ChooseTextureFormat(ctx
, target
, proxy_format
,
2061 choose_format
, choose_type
);
2064 _mesa_get_format_block_size(texFormat
, &bw
, &bh
);
2065 if ((width
> bw
&& width
% bw
> 0) ||
2066 (height
> bh
&& height
% bh
> 0)) {
2068 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is
2069 * generated [...] if any parameter combinations are not
2070 * supported by the specific compressed internal format.
2072 reason
= "invalid width or height for compression format";
2073 error
= GL_INVALID_OPERATION
;
2078 /* check image size in bytes */
2079 if (expectedSize
!= imageSize
) {
2080 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
2081 * if <imageSize> is not consistent with the format, dimensions, and
2082 * contents of the specified image.
2084 reason
= "imageSize inconsistant with width/height/format";
2085 error
= GL_INVALID_VALUE
;
2089 if (!mutable_tex_object(ctx
, target
)) {
2090 reason
= "immutable texture";
2091 error
= GL_INVALID_OPERATION
;
2098 _mesa_error(ctx
, error
, "glCompressedTexImage%dD(%s)", dimensions
, reason
);
2105 * Test glTexSubImage[123]D() parameters for errors.
2107 * \param ctx GL context.
2108 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2109 * \param target texture target given by the user (already validated)
2110 * \param level image level given by the user.
2111 * \param xoffset sub-image x offset given by the user.
2112 * \param yoffset sub-image y offset given by the user.
2113 * \param zoffset sub-image z offset given by the user.
2114 * \param format pixel data format given by the user.
2115 * \param type pixel data type given by the user.
2116 * \param width image width given by the user.
2117 * \param height image height given by the user.
2118 * \param depth image depth given by the user.
2120 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2122 * Verifies each of the parameters against the constants specified in
2123 * __struct gl_contextRec::Const and the supported extensions, and according
2124 * to the OpenGL specification.
2127 subtexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
2128 GLenum target
, GLint level
,
2129 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2130 GLint width
, GLint height
, GLint depth
,
2131 GLenum format
, GLenum type
)
2136 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2137 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage2D(level=%d)", level
);
2141 /* Check for negative sizes */
2143 _mesa_error(ctx
, GL_INVALID_VALUE
,
2144 "glTexSubImage%dD(width=%d)", dimensions
, width
);
2147 if (height
< 0 && dimensions
> 1) {
2148 _mesa_error(ctx
, GL_INVALID_VALUE
,
2149 "glTexSubImage%dD(height=%d)", dimensions
, height
);
2152 if (depth
< 0 && dimensions
> 2) {
2153 _mesa_error(ctx
, GL_INVALID_VALUE
,
2154 "glTexSubImage%dD(depth=%d)", dimensions
, depth
);
2158 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2159 * combinations of format and type that can be used. Formats and types
2160 * that require additional extensions (e.g., GL_FLOAT requires
2161 * GL_OES_texture_float) are filtered elsewhere.
2163 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2164 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
2165 if (err
!= GL_NO_ERROR
) {
2166 _mesa_error(ctx
, err
,
2167 "glTexSubImage%dD(format = %s, type = %s)",
2169 _mesa_lookup_enum_by_nr(format
),
2170 _mesa_lookup_enum_by_nr(type
));
2175 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
2176 if (err
!= GL_NO_ERROR
) {
2177 _mesa_error(ctx
, err
,
2178 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
2179 dimensions
, format
, type
);
2188 * Do second part of glTexSubImage which depends on the destination texture.
2189 * \return GL_TRUE if error recorded, GL_FALSE otherwise
2192 subtexture_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
2193 GLenum target
, GLint level
,
2194 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2195 GLint width
, GLint height
, GLint depth
,
2196 GLenum format
, GLenum type
,
2197 const struct gl_texture_image
*destTex
)
2200 /* undefined image level */
2201 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexSubImage%dD", dimensions
);
2205 if (xoffset
< -((GLint
)destTex
->Border
)) {
2206 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset)",
2210 if (xoffset
+ width
> (GLint
) (destTex
->Width
+ destTex
->Border
)) {
2211 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset+width)",
2215 if (dimensions
> 1) {
2216 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : destTex
->Border
;
2217 if (yoffset
< -yBorder
) {
2218 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset)",
2222 if (yoffset
+ height
> (GLint
) destTex
->Height
+ yBorder
) {
2223 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset+height)",
2228 if (dimensions
> 2) {
2229 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
) ? 0 : destTex
->Border
;
2230 if (zoffset
< -zBorder
) {
2231 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset)");
2234 if (zoffset
+ depth
> (GLint
) destTex
->Depth
+ zBorder
) {
2235 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset+depth)");
2240 if (_mesa_is_format_compressed(destTex
->TexFormat
)) {
2241 if (compressedteximage_only_format(ctx
, destTex
->InternalFormat
)) {
2242 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2243 "glTexSubImage%dD(no compression for format)", dimensions
);
2247 if (error_check_subtexture_dimensions(ctx
, "glTexSubImage", dimensions
,
2251 destTex
->Width
, destTex
->Height
)) {
2256 if (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) {
2257 /* both source and dest must be integer-valued, or neither */
2258 if (_mesa_is_format_integer_color(destTex
->TexFormat
) !=
2259 _mesa_is_enum_format_integer(format
)) {
2260 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2261 "glTexSubImage%dD(integer/non-integer format mismatch)",
2272 * Test glCopyTexImage[12]D() parameters for errors.
2274 * \param ctx GL context.
2275 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2276 * \param target texture target given by the user.
2277 * \param level image level given by the user.
2278 * \param internalFormat internal format given by the user.
2279 * \param width image width given by the user.
2280 * \param height image height given by the user.
2281 * \param border texture border.
2283 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2285 * Verifies each of the parameters against the constants specified in
2286 * __struct gl_contextRec::Const and the supported extensions, and according
2287 * to the OpenGL specification.
2290 copytexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
2291 GLenum target
, GLint level
, GLint internalFormat
,
2292 GLint width
, GLint height
, GLint border
)
2297 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2298 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexImage%uD(target=%s)",
2299 dimensions
, _mesa_lookup_enum_by_nr(target
));
2304 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2305 _mesa_error(ctx
, GL_INVALID_VALUE
,
2306 "glCopyTexImage%dD(level=%d)", dimensions
, level
);
2310 /* Check that the source buffer is complete */
2311 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2312 if (ctx
->ReadBuffer
->_Status
== 0) {
2313 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2315 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2316 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2317 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2321 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2322 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2323 "glCopyTexImage%dD(multisample FBO)",
2330 if (border
< 0 || border
> 1 ||
2331 ((ctx
->API
!= API_OPENGL
||
2332 target
== GL_TEXTURE_RECTANGLE_NV
||
2333 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
2334 _mesa_error(ctx
, GL_INVALID_VALUE
,
2335 "glCopyTexImage%dD(border=%d)", dimensions
, border
);
2339 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2342 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2343 switch (internalFormat
) {
2348 case GL_LUMINANCE_ALPHA
:
2351 _mesa_error(ctx
, GL_INVALID_VALUE
,
2352 "glCopyTexImage%dD(internalFormat)", dimensions
);
2357 baseFormat
= _mesa_base_tex_format(ctx
, internalFormat
);
2358 if (baseFormat
< 0) {
2359 _mesa_error(ctx
, GL_INVALID_VALUE
,
2360 "glCopyTexImage%dD(internalFormat)", dimensions
);
2364 if (!_mesa_source_buffer_exists(ctx
, baseFormat
)) {
2365 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2366 "glCopyTexImage%dD(missing readbuffer)", dimensions
);
2370 /* From the EXT_texture_integer spec:
2372 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2373 * if the texture internalformat is an integer format and the read color
2374 * buffer is not an integer format, or if the internalformat is not an
2375 * integer format and the read color buffer is an integer format."
2377 if (_mesa_is_color_format(internalFormat
)) {
2378 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2380 if (_mesa_is_enum_format_integer(rb
->InternalFormat
) !=
2381 _mesa_is_enum_format_integer(internalFormat
)) {
2382 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2383 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2388 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
2389 _mesa_is_cube_face(target
)) && width
!= height
) {
2390 _mesa_error(ctx
, GL_INVALID_VALUE
,
2391 "glTexImage2D(cube width != height)");
2395 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
2396 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2397 _mesa_error(ctx
, GL_INVALID_ENUM
,
2398 "glCopyTexImage%dD(target)", dimensions
);
2401 if (compressedteximage_only_format(ctx
, internalFormat
)) {
2402 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2403 "glCopyTexImage%dD(no compression for format)", dimensions
);
2407 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2408 "glCopyTexImage%dD(border!=0)", dimensions
);
2413 if (!mutable_tex_object(ctx
, target
)) {
2414 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2415 "glCopyTexImage%dD(immutable texture)", dimensions
);
2419 /* if we get here, the parameters are OK */
2425 * Test glCopyTexSubImage[12]D() parameters for errors.
2426 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2429 copytexsubimage_error_check(struct gl_context
*ctx
, GLuint dimensions
,
2430 GLenum target
, GLint level
,
2431 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2432 GLint width
, GLint height
)
2434 struct gl_texture_object
*texObj
;
2435 struct gl_texture_image
*texImage
;
2437 /* Check that the source buffer is complete */
2438 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2439 if (ctx
->ReadBuffer
->_Status
== 0) {
2440 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2442 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2443 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2444 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2448 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2449 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2450 "glCopyTexSubImage%dD(multisample FBO)",
2456 /* check target (proxies not allowed) */
2457 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2458 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexSubImage%uD(target=%s)",
2459 dimensions
, _mesa_lookup_enum_by_nr(target
));
2464 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2465 _mesa_error(ctx
, GL_INVALID_VALUE
,
2466 "glCopyTexSubImage%dD(level=%d)", dimensions
, level
);
2470 /* Get dest texture object / image pointers */
2471 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2473 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexSubImage%dD()", dimensions
);
2477 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2479 /* destination image does not exist */
2480 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2481 "glCopyTexSubImage%dD(invalid texture image)", dimensions
);
2485 if (error_check_subtexture_dimensions(ctx
, "glCopyTexSubImage",
2486 dimensions
, texImage
,
2487 xoffset
, yoffset
, zoffset
,
2488 width
, height
, 1)) {
2491 if (dimensions
> 1 && height
< 0) {
2492 _mesa_error(ctx
, GL_INVALID_VALUE
,
2493 "glCopyTexSubImage%dD(height=%d)", dimensions
, height
);
2497 /* check x/y offsets */
2498 if (xoffset
< -((GLint
) texImage
->Border
)) {
2499 _mesa_error(ctx
, GL_INVALID_VALUE
,
2500 "glCopyTexSubImage%dD(xoffset=%d)", dimensions
, xoffset
);
2503 if (xoffset
+ width
> (GLint
) (texImage
->Width
+ texImage
->Border
)) {
2504 _mesa_error(ctx
, GL_INVALID_VALUE
,
2505 "glCopyTexSubImage%dD(xoffset+width)", dimensions
);
2508 if (dimensions
> 1) {
2509 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : texImage
->Border
;
2510 if (yoffset
< -yBorder
) {
2511 _mesa_error(ctx
, GL_INVALID_VALUE
,
2512 "glCopyTexSubImage%dD(yoffset=%d)", dimensions
, yoffset
);
2515 /* NOTE: we're adding the border here, not subtracting! */
2516 if (yoffset
+ height
> (GLint
) texImage
->Height
+ yBorder
) {
2517 _mesa_error(ctx
, GL_INVALID_VALUE
,
2518 "glCopyTexSubImage%dD(yoffset+height)", dimensions
);
2523 /* check z offset */
2524 if (dimensions
> 2) {
2525 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
) ? 0 : texImage
->Border
;
2526 if (zoffset
< -zBorder
) {
2527 _mesa_error(ctx
, GL_INVALID_VALUE
,
2528 "glCopyTexSubImage%dD(zoffset)", dimensions
);
2531 if (zoffset
> (GLint
) texImage
->Depth
+ zBorder
) {
2532 _mesa_error(ctx
, GL_INVALID_VALUE
,
2533 "glCopyTexSubImage%dD(zoffset+depth)", dimensions
);
2538 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
2539 if (compressedteximage_only_format(ctx
, texImage
->InternalFormat
)) {
2540 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2541 "glCopyTexSubImage%dD(no compression for format)", dimensions
);
2545 if (error_check_subtexture_dimensions(ctx
, "glCopyTexSubImage",
2546 dimensions
, texImage
->TexFormat
,
2547 xoffset
, yoffset
, width
, height
,
2549 texImage
->Height
)) {
2554 if (texImage
->InternalFormat
== GL_YCBCR_MESA
) {
2555 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glCopyTexSubImage2D");
2559 if (!_mesa_source_buffer_exists(ctx
, texImage
->_BaseFormat
)) {
2560 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2561 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2562 dimensions
, texImage
->_BaseFormat
);
2566 /* From the EXT_texture_integer spec:
2568 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2569 * if the texture internalformat is an integer format and the read color
2570 * buffer is not an integer format, or if the internalformat is not an
2571 * integer format and the read color buffer is an integer format."
2573 if (_mesa_is_color_format(texImage
->InternalFormat
)) {
2574 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2576 if (_mesa_is_format_integer_color(rb
->Format
) !=
2577 _mesa_is_format_integer_color(texImage
->TexFormat
)) {
2578 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2579 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2584 /* if we get here, the parameters are OK */
2589 /** Callback info for walking over FBO hash table */
2592 struct gl_context
*ctx
;
2593 struct gl_texture_object
*texObj
;
2599 * Check render to texture callback. Called from _mesa_HashWalk().
2602 check_rtt_cb(GLuint key
, void *data
, void *userData
)
2604 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2605 const struct cb_info
*info
= (struct cb_info
*) userData
;
2606 struct gl_context
*ctx
= info
->ctx
;
2607 const struct gl_texture_object
*texObj
= info
->texObj
;
2608 const GLuint level
= info
->level
, face
= info
->face
;
2610 /* If this is a user-created FBO */
2611 if (_mesa_is_user_fbo(fb
)) {
2613 /* check if any of the FBO's attachments point to 'texObj' */
2614 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2615 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2616 if (att
->Type
== GL_TEXTURE
&&
2617 att
->Texture
== texObj
&&
2618 att
->TextureLevel
== level
&&
2619 att
->CubeMapFace
== face
) {
2620 ASSERT(_mesa_get_attachment_teximage(att
));
2621 /* Tell driver about the new renderbuffer texture */
2622 ctx
->Driver
.RenderTexture(ctx
, ctx
->DrawBuffer
, att
);
2623 /* Mark fb status as indeterminate to force re-validation */
2632 * When a texture image is specified we have to check if it's bound to
2633 * any framebuffer objects (render to texture) in order to detect changes
2634 * in size or format since that effects FBO completeness.
2635 * Any FBOs rendering into the texture must be re-validated.
2638 _mesa_update_fbo_texture(struct gl_context
*ctx
,
2639 struct gl_texture_object
*texObj
,
2640 GLuint face
, GLuint level
)
2642 /* Only check this texture if it's been marked as RenderToTexture */
2643 if (texObj
->_RenderToTexture
) {
2644 struct cb_info info
;
2646 info
.texObj
= texObj
;
2649 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, check_rtt_cb
, &info
);
2655 * If the texture object's GenerateMipmap flag is set and we've
2656 * changed the texture base level image, regenerate the rest of the
2657 * mipmap levels now.
2660 check_gen_mipmap(struct gl_context
*ctx
, GLenum target
,
2661 struct gl_texture_object
*texObj
, GLint level
)
2663 ASSERT(target
!= GL_TEXTURE_CUBE_MAP
);
2664 if (texObj
->GenerateMipmap
&&
2665 level
== texObj
->BaseLevel
&&
2666 level
< texObj
->MaxLevel
) {
2667 ASSERT(ctx
->Driver
.GenerateMipmap
);
2668 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2673 /** Debug helper: override the user-requested internal format */
2675 override_internal_format(GLenum internalFormat
, GLint width
, GLint height
)
2678 if (internalFormat
== GL_RGBA16F_ARB
||
2679 internalFormat
== GL_RGBA32F_ARB
) {
2680 printf("Convert rgba float tex to int %d x %d\n", width
, height
);
2683 else if (internalFormat
== GL_RGB16F_ARB
||
2684 internalFormat
== GL_RGB32F_ARB
) {
2685 printf("Convert rgb float tex to int %d x %d\n", width
, height
);
2688 else if (internalFormat
== GL_LUMINANCE_ALPHA16F_ARB
||
2689 internalFormat
== GL_LUMINANCE_ALPHA32F_ARB
) {
2690 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2691 return GL_LUMINANCE_ALPHA
;
2693 else if (internalFormat
== GL_LUMINANCE16F_ARB
||
2694 internalFormat
== GL_LUMINANCE32F_ARB
) {
2695 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2696 return GL_LUMINANCE
;
2698 else if (internalFormat
== GL_ALPHA16F_ARB
||
2699 internalFormat
== GL_ALPHA32F_ARB
) {
2700 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2704 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2705 internalFormat = GL_RGBA;
2709 return internalFormat
;
2712 return internalFormat
;
2718 * Choose the actual hardware format for a texture image.
2719 * Try to use the same format as the previous image level when possible.
2720 * Otherwise, ask the driver for the best format.
2721 * It's important to try to choose a consistant format for all levels
2722 * for efficient texture memory layout/allocation. In particular, this
2723 * comes up during automatic mipmap generation.
2726 _mesa_choose_texture_format(struct gl_context
*ctx
,
2727 struct gl_texture_object
*texObj
,
2728 GLenum target
, GLint level
,
2729 GLenum internalFormat
, GLenum format
, GLenum type
)
2733 /* see if we've already chosen a format for the previous level */
2735 struct gl_texture_image
*prevImage
=
2736 _mesa_select_tex_image(ctx
, texObj
, target
, level
- 1);
2737 /* See if the prev level is defined and has an internal format which
2738 * matches the new internal format.
2741 prevImage
->Width
> 0 &&
2742 prevImage
->InternalFormat
== internalFormat
) {
2743 /* use the same format */
2744 ASSERT(prevImage
->TexFormat
!= MESA_FORMAT_NONE
);
2745 return prevImage
->TexFormat
;
2749 /* If the application requested compression to an S3TC format but we don't
2750 * have the DTXn library, force a generic compressed format instead.
2752 if (internalFormat
!= format
&& format
!= GL_NONE
) {
2753 const GLenum before
= internalFormat
;
2755 switch (internalFormat
) {
2756 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
2757 if (!ctx
->Mesa_DXTn
)
2758 internalFormat
= GL_COMPRESSED_RGB
;
2760 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
2761 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
2762 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
2763 if (!ctx
->Mesa_DXTn
)
2764 internalFormat
= GL_COMPRESSED_RGBA
;
2770 if (before
!= internalFormat
) {
2772 "DXT compression requested (%s), "
2773 "but libtxc_dxtn library not installed. Using %s "
2775 _mesa_lookup_enum_by_nr(before
),
2776 _mesa_lookup_enum_by_nr(internalFormat
));
2780 /* choose format from scratch */
2781 f
= ctx
->Driver
.ChooseTextureFormat(ctx
, texObj
->Target
, internalFormat
,
2783 ASSERT(f
!= MESA_FORMAT_NONE
);
2788 * Adjust pixel unpack params and image dimensions to strip off the
2789 * one-pixel texture border.
2791 * Gallium and intel don't support texture borders. They've seldem been used
2792 * and seldom been implemented correctly anyway.
2794 * \param unpackNew returns the new pixel unpack parameters
2797 strip_texture_border(GLenum target
,
2798 GLint
*width
, GLint
*height
, GLint
*depth
,
2799 const struct gl_pixelstore_attrib
*unpack
,
2800 struct gl_pixelstore_attrib
*unpackNew
)
2806 *unpackNew
= *unpack
;
2808 if (unpackNew
->RowLength
== 0)
2809 unpackNew
->RowLength
= *width
;
2811 if (unpackNew
->ImageHeight
== 0)
2812 unpackNew
->ImageHeight
= *height
;
2814 assert(*width
>= 3);
2815 unpackNew
->SkipPixels
++; /* skip the border */
2816 *width
= *width
- 2; /* reduce the width by two border pixels */
2818 /* The min height of a texture with a border is 3 */
2819 if (*height
>= 3 && target
!= GL_TEXTURE_1D_ARRAY
) {
2820 unpackNew
->SkipRows
++; /* skip the border */
2821 *height
= *height
- 2; /* reduce the height by two border pixels */
2824 if (*depth
>= 3 && target
!= GL_TEXTURE_2D_ARRAY
) {
2825 unpackNew
->SkipImages
++; /* skip the border */
2826 *depth
= *depth
- 2; /* reduce the depth by two border pixels */
2832 * Common code to implement all the glTexImage1D/2D/3D functions
2833 * as well as glCompressedTexImage1D/2D/3D.
2834 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls.
2835 * \param format the user's image format (only used if !compressed)
2836 * \param type the user's image type (only used if !compressed)
2837 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls.
2840 teximage(struct gl_context
*ctx
, GLboolean compressed
, GLuint dims
,
2841 GLenum target
, GLint level
, GLint internalFormat
,
2842 GLsizei width
, GLsizei height
, GLsizei depth
,
2843 GLint border
, GLenum format
, GLenum type
,
2844 GLsizei imageSize
, const GLvoid
*pixels
)
2846 const char *func
= compressed
? "glCompressedTexImage" : "glTexImage";
2847 struct gl_pixelstore_attrib unpack_no_border
;
2848 const struct gl_pixelstore_attrib
*unpack
= &ctx
->Unpack
;
2849 struct gl_texture_object
*texObj
;
2850 gl_format texFormat
;
2851 GLboolean dimensionsOK
, sizeOK
;
2853 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2855 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
)) {
2858 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n",
2860 _mesa_lookup_enum_by_nr(target
), level
,
2861 _mesa_lookup_enum_by_nr(internalFormat
),
2862 width
, height
, depth
, border
, pixels
);
2865 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2867 _mesa_lookup_enum_by_nr(target
), level
,
2868 _mesa_lookup_enum_by_nr(internalFormat
),
2869 width
, height
, depth
, border
,
2870 _mesa_lookup_enum_by_nr(format
),
2871 _mesa_lookup_enum_by_nr(type
), pixels
);
2874 internalFormat
= override_internal_format(internalFormat
, width
, height
);
2876 /* target error checking */
2877 if (!legal_teximage_target(ctx
, dims
, target
)) {
2878 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s%uD(target=%s)",
2879 func
, dims
, _mesa_lookup_enum_by_nr(target
));
2883 /* general error checking */
2885 if (compressed_texture_error_check(ctx
, dims
, target
, level
,
2887 width
, height
, depth
,
2892 if (texture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2893 format
, type
, width
, height
, depth
, border
))
2897 /* Here we convert a cpal compressed image into a regular glTexImage2D
2898 * call by decompressing the texture. If we really want to support cpal
2899 * textures in any driver this would have to be changed.
2901 if (ctx
->API
== API_OPENGLES
&& compressed
&& dims
== 2) {
2902 switch (internalFormat
) {
2903 case GL_PALETTE4_RGB8_OES
:
2904 case GL_PALETTE4_RGBA8_OES
:
2905 case GL_PALETTE4_R5_G6_B5_OES
:
2906 case GL_PALETTE4_RGBA4_OES
:
2907 case GL_PALETTE4_RGB5_A1_OES
:
2908 case GL_PALETTE8_RGB8_OES
:
2909 case GL_PALETTE8_RGBA8_OES
:
2910 case GL_PALETTE8_R5_G6_B5_OES
:
2911 case GL_PALETTE8_RGBA4_OES
:
2912 case GL_PALETTE8_RGB5_A1_OES
:
2913 _mesa_cpal_compressed_teximage2d(target
, level
, internalFormat
,
2914 width
, height
, imageSize
, pixels
);
2919 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2922 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
2923 internalFormat
, format
, type
);
2924 assert(texFormat
!= MESA_FORMAT_NONE
);
2926 /* check that width, height, depth are legal for the mipmap level */
2927 dimensionsOK
= _mesa_legal_texture_dimensions(ctx
, target
, level
, width
,
2928 height
, depth
, border
);
2930 /* check that the texture won't take too much memory, etc */
2931 sizeOK
= ctx
->Driver
.TestProxyTexImage(ctx
, _mesa_get_proxy_target(target
),
2933 width
, height
, depth
, border
);
2935 if (_mesa_is_proxy_texture(target
)) {
2936 /* Proxy texture: just clear or set state depending on error checking */
2937 struct gl_texture_image
*texImage
=
2938 get_proxy_tex_image(ctx
, target
, level
);
2941 return; /* GL_OUT_OF_MEMORY already recorded */
2943 if (dimensionsOK
&& sizeOK
) {
2944 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, depth
,
2945 border
, internalFormat
, texFormat
);
2948 clear_teximage_fields(texImage
);
2952 /* non-proxy target */
2953 const GLuint face
= _mesa_tex_target_to_face(target
);
2954 struct gl_texture_image
*texImage
;
2956 if (!dimensionsOK
) {
2957 _mesa_error(ctx
, GL_INVALID_VALUE
,
2958 "glTexImage%uD(invalid width or height or depth)",
2964 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
2965 "glTexImage%uD(image too large)", dims
);
2969 /* Allow a hardware driver to just strip out the border, to provide
2970 * reliable but slightly incorrect hardware rendering instead of
2971 * rarely-tested software fallback rendering.
2973 if (border
&& ctx
->Const
.StripTextureBorder
) {
2974 strip_texture_border(target
, &width
, &height
, &depth
, unpack
,
2977 unpack
= &unpack_no_border
;
2980 if (ctx
->NewState
& _NEW_PIXEL
)
2981 _mesa_update_state(ctx
);
2983 _mesa_lock_texture(ctx
, texObj
);
2985 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
2988 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s%uD", func
, dims
);
2991 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
2993 _mesa_init_teximage_fields(ctx
, texImage
,
2994 width
, height
, depth
,
2995 border
, internalFormat
, texFormat
);
2997 /* Give the texture to the driver. <pixels> may be null. */
2999 ctx
->Driver
.CompressedTexImage(ctx
, dims
, texImage
,
3003 ctx
->Driver
.TexImage(ctx
, dims
, texImage
, format
,
3004 type
, pixels
, unpack
);
3007 check_gen_mipmap(ctx
, target
, texObj
, level
);
3009 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3011 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3014 _mesa_unlock_texture(ctx
, texObj
);
3021 * Called from the API. Note that width includes the border.
3024 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalFormat
,
3025 GLsizei width
, GLint border
, GLenum format
,
3026 GLenum type
, const GLvoid
*pixels
)
3028 GET_CURRENT_CONTEXT(ctx
);
3029 teximage(ctx
, GL_FALSE
, 1, target
, level
, internalFormat
, width
, 1, 1,
3030 border
, format
, type
, 0, pixels
);
3035 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalFormat
,
3036 GLsizei width
, GLsizei height
, GLint border
,
3037 GLenum format
, GLenum type
,
3038 const GLvoid
*pixels
)
3040 GET_CURRENT_CONTEXT(ctx
);
3041 teximage(ctx
, GL_FALSE
, 2, target
, level
, internalFormat
, width
, height
, 1,
3042 border
, format
, type
, 0, pixels
);
3047 * Called by the API or display list executor.
3048 * Note that width and height include the border.
3051 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalFormat
,
3052 GLsizei width
, GLsizei height
, GLsizei depth
,
3053 GLint border
, GLenum format
, GLenum type
,
3054 const GLvoid
*pixels
)
3056 GET_CURRENT_CONTEXT(ctx
);
3057 teximage(ctx
, GL_FALSE
, 3, target
, level
, internalFormat
,
3058 width
, height
, depth
,
3059 border
, format
, type
, 0, pixels
);
3064 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalFormat
,
3065 GLsizei width
, GLsizei height
, GLsizei depth
,
3066 GLint border
, GLenum format
, GLenum type
,
3067 const GLvoid
*pixels
)
3069 _mesa_TexImage3D(target
, level
, (GLint
) internalFormat
, width
, height
,
3070 depth
, border
, format
, type
, pixels
);
3075 _mesa_EGLImageTargetTexture2DOES (GLenum target
, GLeglImageOES image
)
3077 struct gl_texture_object
*texObj
;
3078 struct gl_texture_image
*texImage
;
3080 GET_CURRENT_CONTEXT(ctx
);
3081 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3085 valid_target
= ctx
->Extensions
.OES_EGL_image
;
3087 case GL_TEXTURE_EXTERNAL_OES
:
3088 valid_target
= ctx
->Extensions
.OES_EGL_image_external
;
3091 valid_target
= false;
3095 if (!valid_target
) {
3096 _mesa_error(ctx
, GL_INVALID_ENUM
,
3097 "glEGLImageTargetTexture2D(target=%d)", target
);
3101 if (ctx
->NewState
& _NEW_PIXEL
)
3102 _mesa_update_state(ctx
);
3104 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3105 _mesa_lock_texture(ctx
, texObj
);
3107 if (texObj
->Immutable
) {
3108 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3109 "glEGLImageTargetTexture2D(texture is immutable)");
3110 _mesa_unlock_texture(ctx
, texObj
);
3114 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
3116 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glEGLImageTargetTexture2D");
3118 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3120 ctx
->Driver
.EGLImageTargetTexture2D(ctx
, target
,
3121 texObj
, texImage
, image
);
3123 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3125 _mesa_unlock_texture(ctx
, texObj
);
3132 * Implement all the glTexSubImage1/2/3D() functions.
3135 texsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3136 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3137 GLsizei width
, GLsizei height
, GLsizei depth
,
3138 GLenum format
, GLenum type
, const GLvoid
*pixels
)
3140 struct gl_texture_object
*texObj
;
3141 struct gl_texture_image
*texImage
;
3143 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3145 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3146 _mesa_debug(ctx
, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
3148 _mesa_lookup_enum_by_nr(target
), level
,
3149 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3150 _mesa_lookup_enum_by_nr(format
),
3151 _mesa_lookup_enum_by_nr(type
), pixels
);
3153 /* check target (proxies not allowed) */
3154 if (!legal_texsubimage_target(ctx
, dims
, target
)) {
3155 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
3156 dims
, _mesa_lookup_enum_by_nr(target
));
3160 if (ctx
->NewState
& _NEW_PIXEL
)
3161 _mesa_update_state(ctx
);
3163 if (subtexture_error_check(ctx
, dims
, target
, level
, xoffset
, yoffset
, zoffset
,
3164 width
, height
, depth
, format
, type
)) {
3165 return; /* error was detected */
3168 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3170 _mesa_lock_texture(ctx
, texObj
);
3172 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3174 if (subtexture_error_check2(ctx
, dims
, target
, level
,
3175 xoffset
, yoffset
, zoffset
,
3176 width
, height
, depth
,
3177 format
, type
, texImage
)) {
3178 /* error was recorded */
3180 else if (width
> 0 && height
> 0 && depth
> 0) {
3181 /* If we have a border, offset=-1 is legal. Bias by border width. */
3184 if (target
!= GL_TEXTURE_2D_ARRAY
)
3185 zoffset
+= texImage
->Border
;
3188 if (target
!= GL_TEXTURE_1D_ARRAY
)
3189 yoffset
+= texImage
->Border
;
3192 xoffset
+= texImage
->Border
;
3195 ctx
->Driver
.TexSubImage(ctx
, dims
, texImage
,
3196 xoffset
, yoffset
, zoffset
,
3197 width
, height
, depth
,
3198 format
, type
, pixels
, &ctx
->Unpack
);
3200 check_gen_mipmap(ctx
, target
, texObj
, level
);
3202 ctx
->NewState
|= _NEW_TEXTURE
;
3205 _mesa_unlock_texture(ctx
, texObj
);
3210 _mesa_TexSubImage1D( GLenum target
, GLint level
,
3211 GLint xoffset
, GLsizei width
,
3212 GLenum format
, GLenum type
,
3213 const GLvoid
*pixels
)
3215 GET_CURRENT_CONTEXT(ctx
);
3216 texsubimage(ctx
, 1, target
, level
,
3219 format
, type
, pixels
);
3224 _mesa_TexSubImage2D( GLenum target
, GLint level
,
3225 GLint xoffset
, GLint yoffset
,
3226 GLsizei width
, GLsizei height
,
3227 GLenum format
, GLenum type
,
3228 const GLvoid
*pixels
)
3230 GET_CURRENT_CONTEXT(ctx
);
3231 texsubimage(ctx
, 2, target
, level
,
3232 xoffset
, yoffset
, 0,
3234 format
, type
, pixels
);
3240 _mesa_TexSubImage3D( GLenum target
, GLint level
,
3241 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3242 GLsizei width
, GLsizei height
, GLsizei depth
,
3243 GLenum format
, GLenum type
,
3244 const GLvoid
*pixels
)
3246 GET_CURRENT_CONTEXT(ctx
);
3247 texsubimage(ctx
, 3, target
, level
,
3248 xoffset
, yoffset
, zoffset
,
3249 width
, height
, depth
,
3250 format
, type
, pixels
);
3256 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3257 * from. This depends on whether the texture contains color or depth values.
3259 static struct gl_renderbuffer
*
3260 get_copy_tex_image_source(struct gl_context
*ctx
, gl_format texFormat
)
3262 if (_mesa_get_format_bits(texFormat
, GL_DEPTH_BITS
) > 0) {
3263 /* reading from depth/stencil buffer */
3264 return ctx
->ReadBuffer
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
3267 /* copying from color buffer */
3268 return ctx
->ReadBuffer
->_ColorReadBuffer
;
3275 * Implement the glCopyTexImage1/2D() functions.
3278 copyteximage(struct gl_context
*ctx
, GLuint dims
,
3279 GLenum target
, GLint level
, GLenum internalFormat
,
3280 GLint x
, GLint y
, GLsizei width
, GLsizei height
, GLint border
)
3282 struct gl_texture_object
*texObj
;
3283 struct gl_texture_image
*texImage
;
3284 const GLuint face
= _mesa_tex_target_to_face(target
);
3285 gl_format texFormat
;
3287 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3289 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3290 _mesa_debug(ctx
, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3292 _mesa_lookup_enum_by_nr(target
), level
,
3293 _mesa_lookup_enum_by_nr(internalFormat
),
3294 x
, y
, width
, height
, border
);
3296 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3297 _mesa_update_state(ctx
);
3299 if (copytexture_error_check(ctx
, dims
, target
, level
, internalFormat
,
3300 width
, height
, border
))
3303 if (!_mesa_legal_texture_dimensions(ctx
, target
, level
, width
, height
,
3305 _mesa_error(ctx
, GL_INVALID_VALUE
,
3306 "glCopyTexImage%uD(invalid width or height)", dims
);
3310 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3313 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3314 internalFormat
, GL_NONE
, GL_NONE
);
3315 assert(texFormat
!= MESA_FORMAT_NONE
);
3317 if (!ctx
->Driver
.TestProxyTexImage(ctx
, _mesa_get_proxy_target(target
),
3319 width
, height
, 1, border
)) {
3320 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3321 "glCopyTexImage%uD(image too large)", dims
);
3325 if (border
&& ctx
->Const
.StripTextureBorder
) {
3327 width
-= border
* 2;
3330 height
-= border
* 2;
3335 _mesa_lock_texture(ctx
, texObj
);
3337 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3340 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
3343 GLint srcX
= x
, srcY
= y
, dstX
= 0, dstY
= 0, dstZ
= 0;
3345 /* Free old texture image */
3346 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3348 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, 1,
3349 border
, internalFormat
, texFormat
);
3351 /* Allocate texture memory (no pixel data yet) */
3352 ctx
->Driver
.TexImage(ctx
, dims
, texImage
,
3354 NULL
, &ctx
->Unpack
);
3356 if (_mesa_clip_copytexsubimage(ctx
, &dstX
, &dstY
, &srcX
, &srcY
,
3358 struct gl_renderbuffer
*srcRb
=
3359 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3361 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
, dstX
, dstY
, dstZ
,
3362 srcRb
, srcX
, srcY
, width
, height
);
3365 check_gen_mipmap(ctx
, target
, texObj
, level
);
3367 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3369 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3372 _mesa_unlock_texture(ctx
, texObj
);
3378 _mesa_CopyTexImage1D( GLenum target
, GLint level
,
3379 GLenum internalFormat
,
3381 GLsizei width
, GLint border
)
3383 GET_CURRENT_CONTEXT(ctx
);
3384 copyteximage(ctx
, 1, target
, level
, internalFormat
, x
, y
, width
, 1, border
);
3390 _mesa_CopyTexImage2D( GLenum target
, GLint level
, GLenum internalFormat
,
3391 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
3394 GET_CURRENT_CONTEXT(ctx
);
3395 copyteximage(ctx
, 2, target
, level
, internalFormat
,
3396 x
, y
, width
, height
, border
);
3402 * Implementation for glCopyTexSubImage1/2/3D() functions.
3405 copytexsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3406 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3407 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3409 struct gl_texture_object
*texObj
;
3410 struct gl_texture_image
*texImage
;
3412 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3414 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3415 _mesa_debug(ctx
, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
3417 _mesa_lookup_enum_by_nr(target
),
3418 level
, xoffset
, yoffset
, zoffset
, x
, y
, width
, height
);
3420 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3421 _mesa_update_state(ctx
);
3423 if (copytexsubimage_error_check(ctx
, dims
, target
, level
,
3424 xoffset
, yoffset
, zoffset
, width
, height
)) {
3428 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3430 _mesa_lock_texture(ctx
, texObj
);
3432 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3434 /* If we have a border, offset=-1 is legal. Bias by border width. */
3437 if (target
!= GL_TEXTURE_2D_ARRAY
)
3438 zoffset
+= texImage
->Border
;
3441 if (target
!= GL_TEXTURE_1D_ARRAY
)
3442 yoffset
+= texImage
->Border
;
3445 xoffset
+= texImage
->Border
;
3448 if (_mesa_clip_copytexsubimage(ctx
, &xoffset
, &yoffset
, &x
, &y
,
3450 struct gl_renderbuffer
*srcRb
=
3451 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3453 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
,
3454 xoffset
, yoffset
, zoffset
,
3455 srcRb
, x
, y
, width
, height
);
3457 check_gen_mipmap(ctx
, target
, texObj
, level
);
3459 ctx
->NewState
|= _NEW_TEXTURE
;
3462 _mesa_unlock_texture(ctx
, texObj
);
3467 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
,
3468 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
3470 GET_CURRENT_CONTEXT(ctx
);
3471 copytexsubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, x
, y
, width
, 1);
3477 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
3478 GLint xoffset
, GLint yoffset
,
3479 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3481 GET_CURRENT_CONTEXT(ctx
);
3482 copytexsubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0, x
, y
,
3489 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
3490 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3491 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3493 GET_CURRENT_CONTEXT(ctx
);
3494 copytexsubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
3495 x
, y
, width
, height
);
3501 /**********************************************************************/
3502 /****** Compressed Textures ******/
3503 /**********************************************************************/
3507 * Error checking for glCompressedTexSubImage[123]D().
3508 * \return error code or GL_NO_ERROR.
3511 compressed_subtexture_error_check(struct gl_context
*ctx
, GLint dims
,
3512 GLenum target
, GLint level
,
3513 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3514 GLsizei width
, GLsizei height
, GLsizei depth
,
3515 GLenum format
, GLsizei imageSize
)
3517 struct gl_texture_object
*texObj
;
3518 struct gl_texture_image
*texImage
;
3525 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
3526 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
3527 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
3528 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
3529 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
3530 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
3534 targetOK
= GL_FALSE
;
3538 assert(dims
== 1 || dims
== 3);
3539 /* no 1D or 3D compressed textures at this time */
3540 targetOK
= GL_FALSE
;
3544 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCompressedTexImage%uD(target)",
3549 /* this will catch any invalid compressed format token */
3550 if (!_mesa_is_compressed_format(ctx
, format
)) {
3551 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCompressedTexImage%uD(format)",
3556 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
3557 _mesa_error(ctx
, GL_INVALID_VALUE
, "glCompressedTexImage%uD(level=%d)",
3562 expectedSize
= compressed_tex_size(width
, height
, depth
, format
);
3563 if (expectedSize
!= imageSize
) {
3564 _mesa_error(ctx
, GL_INVALID_VALUE
, "glCompressedTexImage%uD(size=%d)",
3569 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3571 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3572 "glCompressedTexSubImage%uD()", dims
);
3576 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3578 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3579 "glCompressedTexSubImage%uD(invalid texture image)", dims
);
3583 if ((GLint
) format
!= texImage
->InternalFormat
) {
3584 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3585 "glCompressedTexSubImage%uD(format=0x%x)", dims
, format
);
3589 /* check for negative offsets */
3590 if (xoffset
< 0 || yoffset
< 0 || zoffset
< 0) {
3591 _mesa_error(ctx
, GL_INVALID_VALUE
,
3592 "glCompressedTexSubImage%uD(xoffset=%d yoffset=%d "
3593 "zoffset=%d)", dims
, xoffset
, yoffset
, zoffset
);
3597 /* check for bad width, height, depth */
3598 if (width
< 0 || height
< 0 || depth
< 0) {
3599 _mesa_error(ctx
, GL_INVALID_VALUE
,
3600 "glCompressedTexSubImage%uD(width=%d height=%d depth=%d)",
3601 dims
, width
, height
, depth
);
3605 /* check offset + size */
3606 if (xoffset
+ width
> texImage
->Width
||
3607 yoffset
+ height
> texImage
->Height
||
3608 zoffset
+ depth
> texImage
->Depth
) {
3609 _mesa_error(ctx
, GL_INVALID_VALUE
,
3610 "glCompressedTexSubImage%uD(x+width, y+height, z+depth)",
3615 if (compressedteximage_only_format(ctx
, format
)) {
3616 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3617 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)"
3622 if (error_check_subtexture_dimensions(ctx
, "glCompressedTexSubImage", dims
,
3623 texImage
->TexFormat
,
3624 xoffset
, yoffset
, width
, height
,
3625 texImage
->Width
, texImage
->Height
)) {
3634 _mesa_CompressedTexImage1DARB(GLenum target
, GLint level
,
3635 GLenum internalFormat
, GLsizei width
,
3636 GLint border
, GLsizei imageSize
,
3639 GET_CURRENT_CONTEXT(ctx
);
3640 teximage(ctx
, GL_TRUE
, 1, target
, level
, internalFormat
,
3641 width
, 1, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3646 _mesa_CompressedTexImage2DARB(GLenum target
, GLint level
,
3647 GLenum internalFormat
, GLsizei width
,
3648 GLsizei height
, GLint border
, GLsizei imageSize
,
3651 GET_CURRENT_CONTEXT(ctx
);
3652 teximage(ctx
, GL_TRUE
, 2, target
, level
, internalFormat
,
3653 width
, height
, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3658 _mesa_CompressedTexImage3DARB(GLenum target
, GLint level
,
3659 GLenum internalFormat
, GLsizei width
,
3660 GLsizei height
, GLsizei depth
, GLint border
,
3661 GLsizei imageSize
, const GLvoid
*data
)
3663 GET_CURRENT_CONTEXT(ctx
);
3664 teximage(ctx
, GL_TRUE
, 3, target
, level
, internalFormat
,
3665 width
, height
, depth
, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3670 * Common helper for glCompressedTexSubImage1/2/3D().
3673 compressed_tex_sub_image(GLuint dims
, GLenum target
, GLint level
,
3674 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3675 GLsizei width
, GLsizei height
, GLsizei depth
,
3676 GLenum format
, GLsizei imageSize
, const GLvoid
*data
)
3678 struct gl_texture_object
*texObj
;
3679 struct gl_texture_image
*texImage
;
3680 GET_CURRENT_CONTEXT(ctx
);
3681 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3683 if (compressed_subtexture_error_check(ctx
, dims
, target
, level
,
3684 xoffset
, yoffset
, zoffset
,
3685 width
, height
, depth
,
3686 format
, imageSize
)) {
3690 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3692 _mesa_lock_texture(ctx
, texObj
);
3694 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3697 if (width
> 0 && height
> 0 && depth
> 0) {
3698 ctx
->Driver
.CompressedTexSubImage(ctx
, dims
, texImage
,
3699 xoffset
, yoffset
, zoffset
,
3700 width
, height
, depth
,
3701 format
, imageSize
, data
);
3703 check_gen_mipmap(ctx
, target
, texObj
, level
);
3705 ctx
->NewState
|= _NEW_TEXTURE
;
3708 _mesa_unlock_texture(ctx
, texObj
);
3713 _mesa_CompressedTexSubImage1DARB(GLenum target
, GLint level
, GLint xoffset
,
3714 GLsizei width
, GLenum format
,
3715 GLsizei imageSize
, const GLvoid
*data
)
3717 compressed_tex_sub_image(1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
3718 format
, imageSize
, data
);
3723 _mesa_CompressedTexSubImage2DARB(GLenum target
, GLint level
, GLint xoffset
,
3724 GLint yoffset
, GLsizei width
, GLsizei height
,
3725 GLenum format
, GLsizei imageSize
,
3728 compressed_tex_sub_image(2, target
, level
, xoffset
, yoffset
, 0,
3729 width
, height
, 1, format
, imageSize
, data
);
3734 _mesa_CompressedTexSubImage3DARB(GLenum target
, GLint level
, GLint xoffset
,
3735 GLint yoffset
, GLint zoffset
, GLsizei width
,
3736 GLsizei height
, GLsizei depth
, GLenum format
,
3737 GLsizei imageSize
, const GLvoid
*data
)
3739 compressed_tex_sub_image(3, target
, level
, xoffset
, yoffset
, zoffset
,
3740 width
, height
, depth
, format
, imageSize
, data
);
3744 get_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3746 switch (internalFormat
) {
3748 return MESA_FORMAT_A8
;
3750 return MESA_FORMAT_A16
;
3751 case GL_ALPHA16F_ARB
:
3752 return MESA_FORMAT_ALPHA_FLOAT16
;
3753 case GL_ALPHA32F_ARB
:
3754 return MESA_FORMAT_ALPHA_FLOAT32
;
3755 case GL_ALPHA8I_EXT
:
3756 return MESA_FORMAT_ALPHA_INT8
;
3757 case GL_ALPHA16I_EXT
:
3758 return MESA_FORMAT_ALPHA_INT16
;
3759 case GL_ALPHA32I_EXT
:
3760 return MESA_FORMAT_ALPHA_INT32
;
3761 case GL_ALPHA8UI_EXT
:
3762 return MESA_FORMAT_ALPHA_UINT8
;
3763 case GL_ALPHA16UI_EXT
:
3764 return MESA_FORMAT_ALPHA_UINT16
;
3765 case GL_ALPHA32UI_EXT
:
3766 return MESA_FORMAT_ALPHA_UINT32
;
3768 return MESA_FORMAT_L8
;
3769 case GL_LUMINANCE16
:
3770 return MESA_FORMAT_L16
;
3771 case GL_LUMINANCE16F_ARB
:
3772 return MESA_FORMAT_LUMINANCE_FLOAT16
;
3773 case GL_LUMINANCE32F_ARB
:
3774 return MESA_FORMAT_LUMINANCE_FLOAT32
;
3775 case GL_LUMINANCE8I_EXT
:
3776 return MESA_FORMAT_LUMINANCE_INT8
;
3777 case GL_LUMINANCE16I_EXT
:
3778 return MESA_FORMAT_LUMINANCE_INT16
;
3779 case GL_LUMINANCE32I_EXT
:
3780 return MESA_FORMAT_LUMINANCE_INT32
;
3781 case GL_LUMINANCE8UI_EXT
:
3782 return MESA_FORMAT_LUMINANCE_UINT8
;
3783 case GL_LUMINANCE16UI_EXT
:
3784 return MESA_FORMAT_LUMINANCE_UINT16
;
3785 case GL_LUMINANCE32UI_EXT
:
3786 return MESA_FORMAT_LUMINANCE_UINT32
;
3787 case GL_LUMINANCE8_ALPHA8
:
3788 return MESA_FORMAT_AL88
;
3789 case GL_LUMINANCE16_ALPHA16
:
3790 return MESA_FORMAT_AL1616
;
3791 case GL_LUMINANCE_ALPHA16F_ARB
:
3792 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
;
3793 case GL_LUMINANCE_ALPHA32F_ARB
:
3794 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
;
3795 case GL_LUMINANCE_ALPHA8I_EXT
:
3796 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3797 case GL_LUMINANCE_ALPHA16I_EXT
:
3798 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3799 case GL_LUMINANCE_ALPHA32I_EXT
:
3800 return MESA_FORMAT_LUMINANCE_ALPHA_INT16
;
3801 case GL_LUMINANCE_ALPHA8UI_EXT
:
3802 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8
;
3803 case GL_LUMINANCE_ALPHA16UI_EXT
:
3804 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16
;
3805 case GL_LUMINANCE_ALPHA32UI_EXT
:
3806 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32
;
3808 return MESA_FORMAT_I8
;
3809 case GL_INTENSITY16
:
3810 return MESA_FORMAT_I16
;
3811 case GL_INTENSITY16F_ARB
:
3812 return MESA_FORMAT_INTENSITY_FLOAT16
;
3813 case GL_INTENSITY32F_ARB
:
3814 return MESA_FORMAT_INTENSITY_FLOAT32
;
3815 case GL_INTENSITY8I_EXT
:
3816 return MESA_FORMAT_INTENSITY_INT8
;
3817 case GL_INTENSITY16I_EXT
:
3818 return MESA_FORMAT_INTENSITY_INT16
;
3819 case GL_INTENSITY32I_EXT
:
3820 return MESA_FORMAT_INTENSITY_INT32
;
3821 case GL_INTENSITY8UI_EXT
:
3822 return MESA_FORMAT_INTENSITY_UINT8
;
3823 case GL_INTENSITY16UI_EXT
:
3824 return MESA_FORMAT_INTENSITY_UINT16
;
3825 case GL_INTENSITY32UI_EXT
:
3826 return MESA_FORMAT_INTENSITY_UINT32
;
3828 return MESA_FORMAT_RGBA8888_REV
;
3830 return MESA_FORMAT_RGBA_16
;
3831 case GL_RGBA16F_ARB
:
3832 return MESA_FORMAT_RGBA_FLOAT16
;
3833 case GL_RGBA32F_ARB
:
3834 return MESA_FORMAT_RGBA_FLOAT32
;
3836 return MESA_FORMAT_RGBA_INT8
;
3837 case GL_RGBA16I_EXT
:
3838 return MESA_FORMAT_RGBA_INT16
;
3839 case GL_RGBA32I_EXT
:
3840 return MESA_FORMAT_RGBA_INT32
;
3841 case GL_RGBA8UI_EXT
:
3842 return MESA_FORMAT_RGBA_UINT8
;
3843 case GL_RGBA16UI_EXT
:
3844 return MESA_FORMAT_RGBA_UINT16
;
3845 case GL_RGBA32UI_EXT
:
3846 return MESA_FORMAT_RGBA_UINT32
;
3849 return MESA_FORMAT_GR88
;
3851 return MESA_FORMAT_RG1616
;
3853 return MESA_FORMAT_RG_FLOAT16
;
3855 return MESA_FORMAT_RG_FLOAT32
;
3857 return MESA_FORMAT_RG_INT8
;
3859 return MESA_FORMAT_RG_INT16
;
3861 return MESA_FORMAT_RG_INT32
;
3863 return MESA_FORMAT_RG_UINT8
;
3865 return MESA_FORMAT_RG_UINT16
;
3867 return MESA_FORMAT_RG_UINT32
;
3870 return MESA_FORMAT_R8
;
3872 return MESA_FORMAT_R16
;
3874 return MESA_FORMAT_R_FLOAT16
;
3876 return MESA_FORMAT_R_FLOAT32
;
3878 return MESA_FORMAT_R_INT8
;
3880 return MESA_FORMAT_R_INT16
;
3882 return MESA_FORMAT_R_INT32
;
3884 return MESA_FORMAT_R_UINT8
;
3886 return MESA_FORMAT_R_UINT16
;
3888 return MESA_FORMAT_R_UINT32
;
3891 return MESA_FORMAT_NONE
;
3896 validate_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3898 gl_format format
= get_texbuffer_format(ctx
, internalFormat
);
3901 if (format
== MESA_FORMAT_NONE
)
3902 return MESA_FORMAT_NONE
;
3904 datatype
= _mesa_get_format_datatype(format
);
3905 if (datatype
== GL_FLOAT
&& !ctx
->Extensions
.ARB_texture_float
)
3906 return MESA_FORMAT_NONE
;
3908 if (datatype
== GL_HALF_FLOAT
&& !ctx
->Extensions
.ARB_half_float_pixel
)
3909 return MESA_FORMAT_NONE
;
3911 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make
3912 * any mention of R/RG formats, but they appear in the GL 3.1 core
3915 if (ctx
->Version
<= 30) {
3916 GLenum base_format
= _mesa_get_format_base_format(format
);
3918 if (base_format
== GL_R
|| base_format
== GL_RG
)
3919 return MESA_FORMAT_NONE
;
3925 /** GL_ARB_texture_buffer_object */
3927 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
)
3929 struct gl_texture_object
*texObj
;
3930 struct gl_buffer_object
*bufObj
;
3933 GET_CURRENT_CONTEXT(ctx
);
3934 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3936 if (!(ctx
->Extensions
.ARB_texture_buffer_object
3937 && _mesa_is_desktop_gl(ctx
))) {
3938 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer");
3942 if (target
!= GL_TEXTURE_BUFFER_ARB
) {
3943 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(target)");
3947 format
= validate_texbuffer_format(ctx
, internalFormat
);
3948 if (format
== MESA_FORMAT_NONE
) {
3949 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(internalFormat 0x%x)",
3954 bufObj
= _mesa_lookup_bufferobj(ctx
, buffer
);
3955 if (buffer
&& !bufObj
) {
3956 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer(buffer %u)", buffer
);
3960 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3962 _mesa_lock_texture(ctx
, texObj
);
3964 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, bufObj
);
3965 texObj
->BufferObjectFormat
= internalFormat
;
3966 texObj
->_BufferObjectFormat
= format
;
3968 _mesa_unlock_texture(ctx
, texObj
);