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 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1213 * level, width, height and depth against the ctx->Const limits for textures.
1215 * A hardware driver might override this function if, for example, the
1216 * max 3D texture size is 512x512x64 (i.e. not a cube).
1218 * Note that width, height, depth == 0 is not an error. However, a
1219 * texture with zero width/height/depth will be considered "incomplete"
1220 * and texturing will effectively be disabled.
1222 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1223 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1224 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1225 * \param level as passed to glTexImage
1226 * \param internalFormat as passed to glTexImage
1227 * \param format as passed to glTexImage
1228 * \param type as passed to glTexImage
1229 * \param width as passed to glTexImage
1230 * \param height as passed to glTexImage
1231 * \param depth as passed to glTexImage
1232 * \param border as passed to glTexImage
1233 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1236 _mesa_test_proxy_teximage(struct gl_context
*ctx
, GLenum target
, GLint level
,
1237 GLint internalFormat
, GLenum format
, GLenum type
,
1238 GLint width
, GLint height
, GLint depth
, GLint border
)
1242 (void) internalFormat
;
1247 case GL_PROXY_TEXTURE_1D
:
1248 if (level
>= ctx
->Const
.MaxTextureLevels
)
1250 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1); /* level zero size */
1251 maxSize
>>= level
; /* level size */
1252 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1254 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1255 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1260 case GL_PROXY_TEXTURE_2D
:
1261 if (level
>= ctx
->Const
.MaxTextureLevels
)
1263 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1265 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1267 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1269 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1270 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1272 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1277 case GL_PROXY_TEXTURE_3D
:
1278 if (level
>= ctx
->Const
.Max3DTextureLevels
)
1280 maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
1282 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1284 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1286 if (depth
< 2 * border
|| depth
> 2 * border
+ maxSize
)
1288 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1289 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1291 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1293 if (depth
> 0 && !_mesa_is_pow_two(depth
- 2 * border
))
1298 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1301 maxSize
= ctx
->Const
.MaxTextureRectSize
;
1302 if (width
< 0 || width
> maxSize
)
1304 if (height
< 0 || height
> maxSize
)
1308 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
1309 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
1311 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1313 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1315 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1317 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1318 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1320 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1325 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1326 if (level
>= ctx
->Const
.MaxTextureLevels
)
1328 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1330 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1332 if (height
< 1 || height
> ctx
->Const
.MaxArrayTextureLayers
)
1334 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1335 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1340 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1341 if (level
>= ctx
->Const
.MaxTextureLevels
)
1343 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1345 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1347 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1349 if (depth
< 1 || depth
> ctx
->Const
.MaxArrayTextureLayers
)
1351 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1352 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1354 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1360 _mesa_problem(ctx
, "Invalid target in _mesa_test_proxy_teximage");
1367 * Check if the memory used by the texture would exceed the driver's limit.
1368 * This lets us support a max 3D texture size of 8K (for example) but
1369 * prevents allocating a full 8K x 8K x 8K texture.
1370 * XXX this could be rolled into the proxy texture size test (above) but
1371 * we don't have the actual texture internal format at that point.
1374 legal_texture_size(struct gl_context
*ctx
, gl_format format
,
1375 GLint width
, GLint height
, GLint depth
)
1377 uint64_t bytes
= _mesa_format_image_size64(format
, width
, height
, depth
);
1378 uint64_t mbytes
= bytes
/ (1024 * 1024); /* convert to MB */
1379 return mbytes
<= (uint64_t) ctx
->Const
.MaxTextureMbytes
;
1384 * Return true if the format is only valid for glCompressedTexImage.
1387 compressedteximage_only_format(const struct gl_context
*ctx
, GLenum format
)
1390 case GL_ETC1_RGB8_OES
:
1391 case GL_PALETTE4_RGB8_OES
:
1392 case GL_PALETTE4_RGBA8_OES
:
1393 case GL_PALETTE4_R5_G6_B5_OES
:
1394 case GL_PALETTE4_RGBA4_OES
:
1395 case GL_PALETTE4_RGB5_A1_OES
:
1396 case GL_PALETTE8_RGB8_OES
:
1397 case GL_PALETTE8_RGBA8_OES
:
1398 case GL_PALETTE8_R5_G6_B5_OES
:
1399 case GL_PALETTE8_RGBA4_OES
:
1400 case GL_PALETTE8_RGB5_A1_OES
:
1409 * Helper function to determine whether a target and specific compression
1410 * format are supported.
1413 target_can_be_compressed(const struct gl_context
*ctx
, GLenum target
,
1416 (void) intFormat
; /* not used yet */
1420 case GL_PROXY_TEXTURE_2D
:
1421 return GL_TRUE
; /* true for any compressed format so far */
1422 case GL_PROXY_TEXTURE_CUBE_MAP
:
1423 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1424 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1425 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1426 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1427 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1428 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1429 return ctx
->Extensions
.ARB_texture_cube_map
;
1430 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1431 case GL_TEXTURE_2D_ARRAY_EXT
:
1432 return (ctx
->Extensions
.MESA_texture_array
||
1433 ctx
->Extensions
.EXT_texture_array
);
1441 * Check if the given texture target value is legal for a
1442 * glTexImage1/2/3D call.
1445 legal_teximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1451 case GL_PROXY_TEXTURE_1D
:
1452 return _mesa_is_desktop_gl(ctx
);
1460 case GL_PROXY_TEXTURE_2D
:
1461 return _mesa_is_desktop_gl(ctx
);
1462 case GL_PROXY_TEXTURE_CUBE_MAP
:
1463 return _mesa_is_desktop_gl(ctx
)
1464 && ctx
->Extensions
.ARB_texture_cube_map
;
1465 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1466 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1467 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1468 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1469 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1470 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1471 return ctx
->Extensions
.ARB_texture_cube_map
;
1472 case GL_TEXTURE_RECTANGLE_NV
:
1473 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1474 return _mesa_is_desktop_gl(ctx
)
1475 && ctx
->Extensions
.NV_texture_rectangle
;
1476 case GL_TEXTURE_1D_ARRAY_EXT
:
1477 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1478 return _mesa_is_desktop_gl(ctx
)
1479 && (ctx
->Extensions
.MESA_texture_array
||
1480 ctx
->Extensions
.EXT_texture_array
);
1488 case GL_PROXY_TEXTURE_3D
:
1489 return _mesa_is_desktop_gl(ctx
);
1490 case GL_TEXTURE_2D_ARRAY_EXT
:
1491 return (_mesa_is_desktop_gl(ctx
)
1492 && (ctx
->Extensions
.MESA_texture_array
||
1493 ctx
->Extensions
.EXT_texture_array
))
1494 || _mesa_is_gles3(ctx
);
1495 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1496 return _mesa_is_desktop_gl(ctx
)
1497 && (ctx
->Extensions
.MESA_texture_array
||
1498 ctx
->Extensions
.EXT_texture_array
);
1503 _mesa_problem(ctx
, "invalid dims=%u in legal_teximage_target()", dims
);
1510 * Check if the given texture target value is legal for a
1511 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1512 * The difference compared to legal_teximage_target() above is that
1513 * proxy targets are not supported.
1516 legal_texsubimage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1520 return _mesa_is_desktop_gl(ctx
) && target
== GL_TEXTURE_1D
;
1525 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1526 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1527 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1528 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1529 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1530 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1531 return ctx
->Extensions
.ARB_texture_cube_map
;
1532 case GL_TEXTURE_RECTANGLE_NV
:
1533 return _mesa_is_desktop_gl(ctx
)
1534 && ctx
->Extensions
.NV_texture_rectangle
;
1535 case GL_TEXTURE_1D_ARRAY_EXT
:
1536 return _mesa_is_desktop_gl(ctx
)
1537 && (ctx
->Extensions
.MESA_texture_array
||
1538 ctx
->Extensions
.EXT_texture_array
);
1546 case GL_TEXTURE_2D_ARRAY_EXT
:
1547 return (_mesa_is_desktop_gl(ctx
)
1548 && (ctx
->Extensions
.MESA_texture_array
||
1549 ctx
->Extensions
.EXT_texture_array
))
1550 || _mesa_is_gles3(ctx
);
1555 _mesa_problem(ctx
, "invalid dims=%u in legal_texsubimage_target()",
1563 * Helper function to determine if a texture object is mutable (in terms
1564 * of GL_ARB_texture_storage).
1567 mutable_tex_object(struct gl_context
*ctx
, GLenum target
)
1569 if (ctx
->Extensions
.ARB_texture_storage
) {
1570 struct gl_texture_object
*texObj
=
1571 _mesa_get_current_tex_object(ctx
, target
);
1572 return !texObj
->Immutable
;
1579 _mesa_es_error_check_format_and_type(GLenum format
, GLenum type
,
1580 unsigned dimensions
)
1582 bool type_valid
= true;
1587 case GL_LUMINANCE_ALPHA
:
1588 type_valid
= (type
== GL_UNSIGNED_BYTE
1590 || type
== GL_HALF_FLOAT_OES
);
1594 type_valid
= (type
== GL_UNSIGNED_BYTE
1595 || type
== GL_UNSIGNED_SHORT_5_6_5
1597 || type
== GL_HALF_FLOAT_OES
);
1601 type_valid
= (type
== GL_UNSIGNED_BYTE
1602 || type
== GL_UNSIGNED_SHORT_4_4_4_4
1603 || type
== GL_UNSIGNED_SHORT_5_5_5_1
1605 || type
== GL_HALF_FLOAT_OES
1606 || type
== GL_UNSIGNED_INT_2_10_10_10_REV
);
1609 case GL_DEPTH_COMPONENT
:
1610 /* This format is filtered against invalid dimensionalities elsewhere.
1612 type_valid
= (type
== GL_UNSIGNED_SHORT
1613 || type
== GL_UNSIGNED_INT
);
1616 case GL_DEPTH_STENCIL
:
1617 /* This format is filtered against invalid dimensionalities elsewhere.
1619 type_valid
= (type
== GL_UNSIGNED_INT_24_8
);
1623 type_valid
= (type
== GL_UNSIGNED_BYTE
);
1625 /* This feels like a bug in the EXT_texture_format_BGRA8888 spec, but
1626 * the format does not appear to be allowed for 3D textures in OpenGL
1629 if (dimensions
!= 2)
1630 return GL_INVALID_VALUE
;
1635 return GL_INVALID_VALUE
;
1638 return type_valid
? GL_NO_ERROR
: GL_INVALID_OPERATION
;
1644 * Return expected size of a compressed texture.
1647 compressed_tex_size(GLsizei width
, GLsizei height
, GLsizei depth
,
1650 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
1651 return _mesa_format_image_size(mesaFormat
, width
, height
, depth
);
1656 * Return compressed texture block size, in pixels.
1659 get_compressed_block_size(GLenum glformat
, GLuint
*bw
, GLuint
*bh
)
1661 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
1662 _mesa_get_format_block_size(mesaFormat
, bw
, bh
);
1667 * Special value returned by error some texture error checking functions when
1668 * an error is detected and the proxy texture image's width/height/depth/format
1669 * fields should be zeroed-out.
1671 #define PROXY_ERROR 2
1675 * Test the glTexImage[123]D() parameters for errors.
1677 * \param ctx GL context.
1678 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1679 * \param target texture target given by the user.
1680 * \param level image level given by the user.
1681 * \param internalFormat internal format given by the user.
1682 * \param format pixel data format given by the user.
1683 * \param type pixel data type given by the user.
1684 * \param width image width given by the user.
1685 * \param height image height given by the user.
1686 * \param depth image depth given by the user.
1687 * \param border image border given by the user.
1689 * \return PROXY_ERROR if there's an error that should zero-out the proxy image,
1690 * GL_TRUE if a regular GL error is found, or GL_FALSE if no error,
1692 * Verifies each of the parameters against the constants specified in
1693 * __struct gl_contextRec::Const and the supported extensions, and according
1694 * to the OpenGL specification.
1697 texture_error_check( struct gl_context
*ctx
,
1698 GLuint dimensions
, GLenum target
,
1699 GLint level
, GLint internalFormat
,
1700 GLenum format
, GLenum type
,
1701 GLint width
, GLint height
,
1702 GLint depth
, GLint border
)
1704 const GLenum proxyTarget
= _mesa_get_proxy_target(target
);
1705 const GLboolean isProxy
= target
== proxyTarget
;
1706 GLboolean sizeOK
= GL_TRUE
;
1707 GLboolean colorFormat
;
1710 /* Even though there are no color-index textures, we still have to support
1711 * uploading color-index data and remapping it to RGB via the
1712 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1714 const GLboolean indexFormat
= (format
== GL_COLOR_INDEX
);
1716 /* Note: for proxy textures, some error conditions immediately generate
1717 * a GL error in the usual way. But others do not generate a GL error.
1718 * Instead, they cause the width, height, depth, format fields of the
1719 * texture image to be zeroed-out. The GL spec seems to indicate that the
1720 * zero-out behaviour is only used in cases related to memory allocation.
1723 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1724 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1725 _mesa_error(ctx
, GL_INVALID_VALUE
,
1726 "glTexImage%dD(level=%d)", dimensions
, level
);
1731 if (border
< 0 || border
> 1 ||
1732 ((ctx
->API
!= API_OPENGL
||
1733 target
== GL_TEXTURE_RECTANGLE_NV
||
1734 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1735 _mesa_error(ctx
, GL_INVALID_VALUE
,
1736 "glTexImage%dD(border=%d)", dimensions
, border
);
1740 if (width
< 0 || height
< 0 || depth
< 0) {
1741 _mesa_error(ctx
, GL_INVALID_VALUE
,
1742 "glTexImage%dD(width, height or depth < 0)", dimensions
);
1746 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1747 * combinations of format, internalFormat, and type that can be used.
1748 * Formats and types that require additional extensions (e.g., GL_FLOAT
1749 * requires GL_OES_texture_float) are filtered elsewhere.
1751 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
1752 if (format
!= internalFormat
) {
1753 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1754 "glTexImage%dD(format = %s, internalFormat = %s)",
1756 _mesa_lookup_enum_by_nr(format
),
1757 _mesa_lookup_enum_by_nr(internalFormat
));
1761 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
1762 if (err
!= GL_NO_ERROR
) {
1763 _mesa_error(ctx
, err
,
1764 "glTexImage%dD(format = %s, type = %s)",
1766 _mesa_lookup_enum_by_nr(format
),
1767 _mesa_lookup_enum_by_nr(type
));
1772 /* Do this simple check before calling the TestProxyTexImage() function */
1773 if (proxyTarget
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
) {
1774 sizeOK
= (width
== height
);
1778 * Use the proxy texture driver hook to see if the size/level/etc are
1781 sizeOK
= sizeOK
&& ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
1782 internalFormat
, format
,
1783 type
, width
, height
,
1787 /* No GL error is recorded, but we need to zero-out the image dims */
1791 _mesa_error(ctx
, GL_INVALID_VALUE
,
1792 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1793 dimensions
, level
, width
, height
, depth
);
1798 /* Check internalFormat */
1799 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1800 _mesa_error(ctx
, GL_INVALID_VALUE
,
1801 "glTexImage%dD(internalFormat=%s)",
1802 dimensions
, _mesa_lookup_enum_by_nr(internalFormat
));
1806 /* Check incoming image format and type */
1807 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
1808 if (err
!= GL_NO_ERROR
) {
1809 _mesa_error(ctx
, err
,
1810 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1811 dimensions
, format
, type
);
1815 /* make sure internal format and format basically agree */
1816 colorFormat
= _mesa_is_color_format(format
);
1817 if ((_mesa_is_color_format(internalFormat
) && !colorFormat
&& !indexFormat
) ||
1818 (_mesa_is_depth_format(internalFormat
) != _mesa_is_depth_format(format
)) ||
1819 (_mesa_is_ycbcr_format(internalFormat
) != _mesa_is_ycbcr_format(format
)) ||
1820 (_mesa_is_depthstencil_format(internalFormat
) != _mesa_is_depthstencil_format(format
)) ||
1821 (_mesa_is_dudv_format(internalFormat
) != _mesa_is_dudv_format(format
))) {
1822 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1823 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1824 dimensions
, internalFormat
, format
);
1828 /* additional checks for ycbcr textures */
1829 if (internalFormat
== GL_YCBCR_MESA
) {
1830 ASSERT(ctx
->Extensions
.MESA_ycbcr_texture
);
1831 if (type
!= GL_UNSIGNED_SHORT_8_8_MESA
&&
1832 type
!= GL_UNSIGNED_SHORT_8_8_REV_MESA
) {
1834 _mesa_snprintf(message
, sizeof(message
),
1835 "glTexImage%dD(format/type YCBCR mismatch)",
1837 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", message
);
1838 return GL_TRUE
; /* error */
1840 if (target
!= GL_TEXTURE_2D
&&
1841 target
!= GL_PROXY_TEXTURE_2D
&&
1842 target
!= GL_TEXTURE_RECTANGLE_NV
&&
1843 target
!= GL_PROXY_TEXTURE_RECTANGLE_NV
) {
1844 _mesa_error(ctx
, GL_INVALID_ENUM
,
1845 "glTexImage%dD(bad target for YCbCr texture)",
1851 _mesa_snprintf(message
, sizeof(message
),
1852 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1853 dimensions
, border
);
1854 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", message
);
1859 /* additional checks for depth textures */
1860 if (_mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_COMPONENT
) {
1861 /* Only 1D, 2D, rect, array and cube textures supported, not 3D
1862 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */
1863 if (target
!= GL_TEXTURE_1D
&&
1864 target
!= GL_PROXY_TEXTURE_1D
&&
1865 target
!= GL_TEXTURE_2D
&&
1866 target
!= GL_PROXY_TEXTURE_2D
&&
1867 target
!= GL_TEXTURE_1D_ARRAY
&&
1868 target
!= GL_PROXY_TEXTURE_1D_ARRAY
&&
1869 target
!= GL_TEXTURE_2D_ARRAY
&&
1870 target
!= GL_PROXY_TEXTURE_2D_ARRAY
&&
1871 target
!= GL_TEXTURE_RECTANGLE_ARB
&&
1872 target
!= GL_PROXY_TEXTURE_RECTANGLE_ARB
&&
1873 !((_mesa_is_cube_face(target
) || target
== GL_PROXY_TEXTURE_CUBE_MAP
) &&
1874 (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_gpu_shader4
))) {
1875 _mesa_error(ctx
, GL_INVALID_ENUM
,
1876 "glTexImage%dD(bad target for depth texture)",
1882 /* additional checks for compressed textures */
1883 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
1884 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1885 _mesa_error(ctx
, GL_INVALID_ENUM
,
1886 "glTexImage%dD(target can't be compressed)", dimensions
);
1889 if (compressedteximage_only_format(ctx
, internalFormat
)) {
1890 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1891 "glTexImage%dD(no compression for format)", dimensions
);
1895 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1896 "glTexImage%dD(border!=0)", dimensions
);
1901 /* additional checks for integer textures */
1902 if ((ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) &&
1903 (_mesa_is_enum_format_integer(format
) !=
1904 _mesa_is_enum_format_integer(internalFormat
))) {
1905 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1906 "glTexImage%dD(integer/non-integer format mismatch)",
1911 if (!mutable_tex_object(ctx
, target
)) {
1912 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1913 "glTexImage%dD(immutable texture)", dimensions
);
1917 /* if we get here, the parameters are OK */
1923 * Error checking for glCompressedTexImage[123]D().
1924 * \param reason returns reason for error, if any
1925 * \return error code or GL_NO_ERROR or PROXY_ERROR.
1928 compressed_texture_error_check(struct gl_context
*ctx
, GLint dimensions
,
1929 GLenum target
, GLint level
,
1930 GLenum internalFormat
, GLsizei width
,
1931 GLsizei height
, GLsizei depth
, GLint border
,
1934 const GLenum proxyTarget
= _mesa_get_proxy_target(target
);
1935 const GLint maxLevels
= _mesa_max_texture_levels(ctx
, target
);
1937 GLenum choose_format
;
1939 GLenum proxy_format
;
1940 GLenum error
= GL_NO_ERROR
;
1941 char *reason
= ""; /* no error */
1943 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1945 error
= GL_INVALID_ENUM
;
1949 /* This will detect any invalid internalFormat value */
1950 if (!_mesa_is_compressed_format(ctx
, internalFormat
)) {
1951 reason
= "internalFormat";
1952 error
= GL_INVALID_ENUM
;
1956 switch (internalFormat
) {
1957 case GL_PALETTE4_RGB8_OES
:
1958 case GL_PALETTE4_RGBA8_OES
:
1959 case GL_PALETTE4_R5_G6_B5_OES
:
1960 case GL_PALETTE4_RGBA4_OES
:
1961 case GL_PALETTE4_RGB5_A1_OES
:
1962 case GL_PALETTE8_RGB8_OES
:
1963 case GL_PALETTE8_RGBA8_OES
:
1964 case GL_PALETTE8_R5_G6_B5_OES
:
1965 case GL_PALETTE8_RGBA4_OES
:
1966 case GL_PALETTE8_RGB5_A1_OES
:
1967 _mesa_cpal_compressed_format_type(internalFormat
, &choose_format
,
1969 proxy_format
= choose_format
;
1971 /* check level (note that level should be zero or less!) */
1972 if (level
> 0 || level
< -maxLevels
) {
1974 error
= GL_INVALID_VALUE
;
1978 if (dimensions
!= 2) {
1979 reason
= "compressed paletted textures must be 2D";
1980 error
= GL_INVALID_OPERATION
;
1984 /* Figure out the expected texture size (in bytes). This will be
1985 * checked against the actual size later.
1987 expectedSize
= _mesa_cpal_compressed_size(level
, internalFormat
,
1990 /* This is for the benefit of the TestProxyTexImage below. It expects
1991 * level to be non-negative. OES_compressed_paletted_texture uses a
1992 * weird mechanism where the level specified to glCompressedTexImage2D
1993 * is -(n-1) number of levels in the texture, and the data specifies the
1994 * complete mipmap stack. This is done to ensure the palette is the
1995 * same for all levels.
2001 choose_format
= GL_NONE
;
2002 choose_type
= GL_NONE
;
2003 proxy_format
= internalFormat
;
2006 if (level
< 0 || level
>= maxLevels
) {
2008 error
= GL_INVALID_VALUE
;
2012 /* Figure out the expected texture size (in bytes). This will be
2013 * checked against the actual size later.
2015 expectedSize
= compressed_tex_size(width
, height
, depth
, internalFormat
);
2019 /* This should really never fail */
2020 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
2021 reason
= "internalFormat";
2022 error
= GL_INVALID_ENUM
;
2026 /* No compressed formats support borders at this time */
2028 reason
= "border != 0";
2029 error
= GL_INVALID_VALUE
;
2033 /* For cube map, width must equal height */
2034 if (_mesa_is_cube_face(target
) && width
!= height
) {
2035 reason
= "width != height";
2036 error
= GL_INVALID_VALUE
;
2040 /* check image size against compression block size */
2042 gl_format texFormat
=
2043 ctx
->Driver
.ChooseTextureFormat(ctx
, target
, proxy_format
,
2044 choose_format
, choose_type
);
2047 _mesa_get_format_block_size(texFormat
, &bw
, &bh
);
2048 if ((width
> bw
&& width
% bw
> 0) ||
2049 (height
> bh
&& height
% bh
> 0)) {
2051 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is
2052 * generated [...] if any parameter combinations are not
2053 * supported by the specific compressed internal format.
2055 reason
= "invalid width or height for compression format";
2056 error
= GL_INVALID_OPERATION
;
2061 /* check image sizes */
2062 if (!ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
2063 proxy_format
, choose_format
,
2065 width
, height
, depth
, border
)) {
2066 /* See error comment above */
2067 if (target
== proxyTarget
) {
2070 reason
= "invalid width, height or format";
2071 error
= GL_INVALID_OPERATION
;
2075 /* check image size in bytes */
2076 if (expectedSize
!= imageSize
) {
2077 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
2078 * if <imageSize> is not consistent with the format, dimensions, and
2079 * contents of the specified image.
2081 reason
= "imageSize inconsistant with width/height/format";
2082 error
= GL_INVALID_VALUE
;
2086 if (!mutable_tex_object(ctx
, target
)) {
2087 reason
= "immutable texture";
2088 error
= GL_INVALID_OPERATION
;
2095 _mesa_error(ctx
, error
, "glCompressedTexImage%dD(%s)", dimensions
, reason
);
2102 * Test glTexSubImage[123]D() parameters for errors.
2104 * \param ctx GL context.
2105 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2106 * \param target texture target given by the user.
2107 * \param level image level given by the user.
2108 * \param xoffset sub-image x offset given by the user.
2109 * \param yoffset sub-image y offset given by the user.
2110 * \param zoffset sub-image z offset given by the user.
2111 * \param format pixel data format given by the user.
2112 * \param type pixel data type given by the user.
2113 * \param width image width given by the user.
2114 * \param height image height given by the user.
2115 * \param depth image depth given by the user.
2117 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2119 * Verifies each of the parameters against the constants specified in
2120 * __struct gl_contextRec::Const and the supported extensions, and according
2121 * to the OpenGL specification.
2124 subtexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
2125 GLenum target
, GLint level
,
2126 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2127 GLint width
, GLint height
, GLint depth
,
2128 GLenum format
, GLenum type
)
2132 /* Basic level check */
2133 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
2134 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage2D(level=%d)", level
);
2138 /* Check for negative sizes */
2140 _mesa_error(ctx
, GL_INVALID_VALUE
,
2141 "glTexSubImage%dD(width=%d)", dimensions
, width
);
2144 if (height
< 0 && dimensions
> 1) {
2145 _mesa_error(ctx
, GL_INVALID_VALUE
,
2146 "glTexSubImage%dD(height=%d)", dimensions
, height
);
2149 if (depth
< 0 && dimensions
> 2) {
2150 _mesa_error(ctx
, GL_INVALID_VALUE
,
2151 "glTexSubImage%dD(depth=%d)", dimensions
, depth
);
2155 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2156 * combinations of format and type that can be used. Formats and types
2157 * that require additional extensions (e.g., GL_FLOAT requires
2158 * GL_OES_texture_float) are filtered elsewhere.
2160 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2161 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
2162 if (err
!= GL_NO_ERROR
) {
2163 _mesa_error(ctx
, err
,
2164 "glTexSubImage%dD(format = %s, type = %s)",
2166 _mesa_lookup_enum_by_nr(format
),
2167 _mesa_lookup_enum_by_nr(type
));
2172 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
2173 if (err
!= GL_NO_ERROR
) {
2174 _mesa_error(ctx
, err
,
2175 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
2176 dimensions
, format
, type
);
2185 * Do second part of glTexSubImage which depends on the destination texture.
2186 * \return GL_TRUE if error recorded, GL_FALSE otherwise
2189 subtexture_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
2190 GLenum target
, GLint level
,
2191 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2192 GLint width
, GLint height
, GLint depth
,
2193 GLenum format
, GLenum type
,
2194 const struct gl_texture_image
*destTex
)
2197 /* undefined image level */
2198 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexSubImage%dD", dimensions
);
2202 if (xoffset
< -((GLint
)destTex
->Border
)) {
2203 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset)",
2207 if (xoffset
+ width
> (GLint
) (destTex
->Width
+ destTex
->Border
)) {
2208 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset+width)",
2212 if (dimensions
> 1) {
2213 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : destTex
->Border
;
2214 if (yoffset
< -yBorder
) {
2215 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset)",
2219 if (yoffset
+ height
> (GLint
) destTex
->Height
+ yBorder
) {
2220 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset+height)",
2225 if (dimensions
> 2) {
2226 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
) ? 0 : destTex
->Border
;
2227 if (zoffset
< -zBorder
) {
2228 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset)");
2231 if (zoffset
+ depth
> (GLint
) destTex
->Depth
+ zBorder
) {
2232 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset+depth)");
2237 if (_mesa_is_format_compressed(destTex
->TexFormat
)) {
2240 if (compressedteximage_only_format(ctx
, destTex
->InternalFormat
)) {
2241 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2242 "glTexSubImage%dD(no compression for format)", dimensions
);
2246 /* do tests which depend on compression block size */
2247 _mesa_get_format_block_size(destTex
->TexFormat
, &bw
, &bh
);
2249 /* offset must be multiple of block size */
2250 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0)) {
2251 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2252 "glTexSubImage%dD(xoffset = %d, yoffset = %d)",
2253 dimensions
, xoffset
, yoffset
);
2256 /* size must be multiple of bw by bh or equal to whole texture size */
2257 if ((width
% bw
!= 0) && (GLuint
) width
!= destTex
->Width
) {
2258 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2259 "glTexSubImage%dD(width = %d)", dimensions
, width
);
2262 if ((height
% bh
!= 0) && (GLuint
) height
!= destTex
->Height
) {
2263 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2264 "glTexSubImage%dD(height = %d)", dimensions
, height
);
2269 if (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) {
2270 /* both source and dest must be integer-valued, or neither */
2271 if (_mesa_is_format_integer_color(destTex
->TexFormat
) !=
2272 _mesa_is_enum_format_integer(format
)) {
2273 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2274 "glTexSubImage%dD(integer/non-integer format mismatch)",
2285 * Test glCopyTexImage[12]D() parameters for errors.
2287 * \param ctx GL context.
2288 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2289 * \param target texture target given by the user.
2290 * \param level image level given by the user.
2291 * \param internalFormat internal format given by the user.
2292 * \param width image width given by the user.
2293 * \param height image height given by the user.
2294 * \param border texture border.
2296 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2298 * Verifies each of the parameters against the constants specified in
2299 * __struct gl_contextRec::Const and the supported extensions, and according
2300 * to the OpenGL specification.
2303 copytexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
2304 GLenum target
, GLint level
, GLint internalFormat
,
2305 GLint width
, GLint height
, GLint border
)
2307 const GLenum proxyTarget
= _mesa_get_proxy_target(target
);
2308 const GLenum type
= GL_FLOAT
;
2313 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2314 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexImage%uD(target=%s)",
2315 dimensions
, _mesa_lookup_enum_by_nr(target
));
2319 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
2320 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
2321 _mesa_error(ctx
, GL_INVALID_VALUE
,
2322 "glCopyTexImage%dD(level=%d)", dimensions
, level
);
2326 /* Check that the source buffer is complete */
2327 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2328 if (ctx
->ReadBuffer
->_Status
== 0) {
2329 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2331 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2332 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2333 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2337 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2338 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2339 "glCopyTexImage%dD(multisample FBO)",
2346 if (border
< 0 || border
> 1 ||
2347 ((ctx
->API
!= API_OPENGL
||
2348 target
== GL_TEXTURE_RECTANGLE_NV
||
2349 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
2350 _mesa_error(ctx
, GL_INVALID_VALUE
,
2351 "glCopyTexImage%dD(border=%d)", dimensions
, border
);
2355 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2358 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2359 switch (internalFormat
) {
2364 case GL_LUMINANCE_ALPHA
:
2367 _mesa_error(ctx
, GL_INVALID_VALUE
,
2368 "glCopyTexImage%dD(internalFormat)", dimensions
);
2373 baseFormat
= _mesa_base_tex_format(ctx
, internalFormat
);
2374 if (baseFormat
< 0) {
2375 _mesa_error(ctx
, GL_INVALID_VALUE
,
2376 "glCopyTexImage%dD(internalFormat)", dimensions
);
2380 if (!_mesa_source_buffer_exists(ctx
, baseFormat
)) {
2381 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2382 "glCopyTexImage%dD(missing readbuffer)", dimensions
);
2386 /* From the EXT_texture_integer spec:
2388 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2389 * if the texture internalformat is an integer format and the read color
2390 * buffer is not an integer format, or if the internalformat is not an
2391 * integer format and the read color buffer is an integer format."
2393 if (_mesa_is_color_format(internalFormat
)) {
2394 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2396 if (_mesa_is_enum_format_integer(rb
->InternalFormat
) !=
2397 _mesa_is_enum_format_integer(internalFormat
)) {
2398 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2399 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2404 /* Do size, level checking */
2405 sizeOK
= (proxyTarget
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
)
2406 ? (width
== height
) : 1;
2408 sizeOK
= sizeOK
&& ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
2409 internalFormat
, baseFormat
,
2410 type
, width
, height
,
2414 if (dimensions
== 1) {
2415 _mesa_error(ctx
, GL_INVALID_VALUE
,
2416 "glCopyTexImage1D(width=%d)", width
);
2419 ASSERT(dimensions
== 2);
2420 _mesa_error(ctx
, GL_INVALID_VALUE
,
2421 "glCopyTexImage2D(width=%d, height=%d)", width
, height
);
2426 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
2427 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2428 _mesa_error(ctx
, GL_INVALID_ENUM
,
2429 "glCopyTexImage%dD(target)", dimensions
);
2432 if (compressedteximage_only_format(ctx
, internalFormat
)) {
2433 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2434 "glCopyTexImage%dD(no compression for format)", dimensions
);
2438 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2439 "glCopyTexImage%dD(border!=0)", dimensions
);
2444 if (!mutable_tex_object(ctx
, target
)) {
2445 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2446 "glCopyTexImage%dD(immutable texture)", dimensions
);
2450 /* if we get here, the parameters are OK */
2456 * Test glCopyTexSubImage[12]D() parameters for errors.
2457 * Note that this is the first part of error checking.
2458 * See also copytexsubimage_error_check2() below for the second part.
2460 * \param ctx GL context.
2461 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2462 * \param target texture target given by the user.
2463 * \param level image level given by the user.
2465 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2468 copytexsubimage_error_check1( struct gl_context
*ctx
, GLuint dimensions
,
2469 GLenum target
, GLint level
)
2471 /* Check that the source buffer is complete */
2472 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2473 if (ctx
->ReadBuffer
->_Status
== 0) {
2474 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2476 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2477 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2478 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2482 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2483 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2484 "glCopyTexSubImage%dD(multisample FBO)",
2490 /* check target (proxies not allowed) */
2491 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2492 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexSubImage%uD(target=%s)",
2493 dimensions
, _mesa_lookup_enum_by_nr(target
));
2498 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
2499 _mesa_error(ctx
, GL_INVALID_VALUE
,
2500 "glCopyTexSubImage%dD(level=%d)", dimensions
, level
);
2509 * Second part of error checking for glCopyTexSubImage[12]D().
2510 * \param xoffset sub-image x offset given by the user.
2511 * \param yoffset sub-image y offset given by the user.
2512 * \param zoffset sub-image z offset given by the user.
2513 * \param width image width given by the user.
2514 * \param height image height given by the user.
2517 copytexsubimage_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
2518 GLenum target
, GLint level
,
2519 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2520 GLsizei width
, GLsizei height
,
2521 const struct gl_texture_image
*teximage
)
2523 /* check that dest tex image exists */
2525 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2526 "glCopyTexSubImage%dD(undefined texture level: %d)",
2533 _mesa_error(ctx
, GL_INVALID_VALUE
,
2534 "glCopyTexSubImage%dD(width=%d)", dimensions
, width
);
2537 if (dimensions
> 1 && height
< 0) {
2538 _mesa_error(ctx
, GL_INVALID_VALUE
,
2539 "glCopyTexSubImage%dD(height=%d)", dimensions
, height
);
2543 /* check x/y offsets */
2544 if (xoffset
< -((GLint
)teximage
->Border
)) {
2545 _mesa_error(ctx
, GL_INVALID_VALUE
,
2546 "glCopyTexSubImage%dD(xoffset=%d)", dimensions
, xoffset
);
2549 if (xoffset
+ width
> (GLint
) (teximage
->Width
+ teximage
->Border
)) {
2550 _mesa_error(ctx
, GL_INVALID_VALUE
,
2551 "glCopyTexSubImage%dD(xoffset+width)", dimensions
);
2554 if (dimensions
> 1) {
2555 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : teximage
->Border
;
2556 if (yoffset
< -yBorder
) {
2557 _mesa_error(ctx
, GL_INVALID_VALUE
,
2558 "glCopyTexSubImage%dD(yoffset=%d)", dimensions
, yoffset
);
2561 /* NOTE: we're adding the border here, not subtracting! */
2562 if (yoffset
+ height
> (GLint
) teximage
->Height
+ yBorder
) {
2563 _mesa_error(ctx
, GL_INVALID_VALUE
,
2564 "glCopyTexSubImage%dD(yoffset+height)", dimensions
);
2569 /* check z offset */
2570 if (dimensions
> 2) {
2571 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
) ? 0 : teximage
->Border
;
2572 if (zoffset
< -zBorder
) {
2573 _mesa_error(ctx
, GL_INVALID_VALUE
,
2574 "glCopyTexSubImage%dD(zoffset)", dimensions
);
2577 if (zoffset
> (GLint
) teximage
->Depth
+ zBorder
) {
2578 _mesa_error(ctx
, GL_INVALID_VALUE
,
2579 "glCopyTexSubImage%dD(zoffset+depth)", dimensions
);
2584 if (_mesa_is_format_compressed(teximage
->TexFormat
)) {
2585 if (compressedteximage_only_format(ctx
, teximage
->InternalFormat
)) {
2586 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2587 "glCopyTexSubImage%dD(no compression for format)", dimensions
);
2590 /* offset must be multiple of 4 */
2591 if ((xoffset
& 3) || (yoffset
& 3)) {
2592 _mesa_error(ctx
, GL_INVALID_VALUE
,
2593 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions
);
2596 /* size must be multiple of 4 */
2597 if ((width
& 3) != 0 && (GLuint
) width
!= teximage
->Width
) {
2598 _mesa_error(ctx
, GL_INVALID_VALUE
,
2599 "glCopyTexSubImage%dD(width)", dimensions
);
2602 if ((height
& 3) != 0 && (GLuint
) height
!= teximage
->Height
) {
2603 _mesa_error(ctx
, GL_INVALID_VALUE
,
2604 "glCopyTexSubImage%dD(height)", dimensions
);
2609 if (teximage
->InternalFormat
== GL_YCBCR_MESA
) {
2610 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glCopyTexSubImage2D");
2614 if (!_mesa_source_buffer_exists(ctx
, teximage
->_BaseFormat
)) {
2615 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2616 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2617 dimensions
, teximage
->_BaseFormat
);
2621 /* From the EXT_texture_integer spec:
2623 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2624 * if the texture internalformat is an integer format and the read color
2625 * buffer is not an integer format, or if the internalformat is not an
2626 * integer format and the read color buffer is an integer format."
2628 if (_mesa_is_color_format(teximage
->InternalFormat
)) {
2629 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2631 if (_mesa_is_format_integer_color(rb
->Format
) !=
2632 _mesa_is_format_integer_color(teximage
->TexFormat
)) {
2633 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2634 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2639 /* if we get here, the parameters are OK */
2644 /** Callback info for walking over FBO hash table */
2647 struct gl_context
*ctx
;
2648 struct gl_texture_object
*texObj
;
2654 * Check render to texture callback. Called from _mesa_HashWalk().
2657 check_rtt_cb(GLuint key
, void *data
, void *userData
)
2659 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2660 const struct cb_info
*info
= (struct cb_info
*) userData
;
2661 struct gl_context
*ctx
= info
->ctx
;
2662 const struct gl_texture_object
*texObj
= info
->texObj
;
2663 const GLuint level
= info
->level
, face
= info
->face
;
2665 /* If this is a user-created FBO */
2666 if (_mesa_is_user_fbo(fb
)) {
2668 /* check if any of the FBO's attachments point to 'texObj' */
2669 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2670 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2671 if (att
->Type
== GL_TEXTURE
&&
2672 att
->Texture
== texObj
&&
2673 att
->TextureLevel
== level
&&
2674 att
->CubeMapFace
== face
) {
2675 ASSERT(_mesa_get_attachment_teximage(att
));
2676 /* Tell driver about the new renderbuffer texture */
2677 ctx
->Driver
.RenderTexture(ctx
, ctx
->DrawBuffer
, att
);
2678 /* Mark fb status as indeterminate to force re-validation */
2687 * When a texture image is specified we have to check if it's bound to
2688 * any framebuffer objects (render to texture) in order to detect changes
2689 * in size or format since that effects FBO completeness.
2690 * Any FBOs rendering into the texture must be re-validated.
2693 _mesa_update_fbo_texture(struct gl_context
*ctx
,
2694 struct gl_texture_object
*texObj
,
2695 GLuint face
, GLuint level
)
2697 /* Only check this texture if it's been marked as RenderToTexture */
2698 if (texObj
->_RenderToTexture
) {
2699 struct cb_info info
;
2701 info
.texObj
= texObj
;
2704 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, check_rtt_cb
, &info
);
2710 * If the texture object's GenerateMipmap flag is set and we've
2711 * changed the texture base level image, regenerate the rest of the
2712 * mipmap levels now.
2715 check_gen_mipmap(struct gl_context
*ctx
, GLenum target
,
2716 struct gl_texture_object
*texObj
, GLint level
)
2718 ASSERT(target
!= GL_TEXTURE_CUBE_MAP
);
2719 if (texObj
->GenerateMipmap
&&
2720 level
== texObj
->BaseLevel
&&
2721 level
< texObj
->MaxLevel
) {
2722 ASSERT(ctx
->Driver
.GenerateMipmap
);
2723 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2728 /** Debug helper: override the user-requested internal format */
2730 override_internal_format(GLenum internalFormat
, GLint width
, GLint height
)
2733 if (internalFormat
== GL_RGBA16F_ARB
||
2734 internalFormat
== GL_RGBA32F_ARB
) {
2735 printf("Convert rgba float tex to int %d x %d\n", width
, height
);
2738 else if (internalFormat
== GL_RGB16F_ARB
||
2739 internalFormat
== GL_RGB32F_ARB
) {
2740 printf("Convert rgb float tex to int %d x %d\n", width
, height
);
2743 else if (internalFormat
== GL_LUMINANCE_ALPHA16F_ARB
||
2744 internalFormat
== GL_LUMINANCE_ALPHA32F_ARB
) {
2745 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2746 return GL_LUMINANCE_ALPHA
;
2748 else if (internalFormat
== GL_LUMINANCE16F_ARB
||
2749 internalFormat
== GL_LUMINANCE32F_ARB
) {
2750 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2751 return GL_LUMINANCE
;
2753 else if (internalFormat
== GL_ALPHA16F_ARB
||
2754 internalFormat
== GL_ALPHA32F_ARB
) {
2755 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2759 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2760 internalFormat = GL_RGBA;
2764 return internalFormat
;
2767 return internalFormat
;
2773 * Choose the actual hardware format for a texture image.
2774 * Try to use the same format as the previous image level when possible.
2775 * Otherwise, ask the driver for the best format.
2776 * It's important to try to choose a consistant format for all levels
2777 * for efficient texture memory layout/allocation. In particular, this
2778 * comes up during automatic mipmap generation.
2781 _mesa_choose_texture_format(struct gl_context
*ctx
,
2782 struct gl_texture_object
*texObj
,
2783 GLenum target
, GLint level
,
2784 GLenum internalFormat
, GLenum format
, GLenum type
)
2788 /* see if we've already chosen a format for the previous level */
2790 struct gl_texture_image
*prevImage
=
2791 _mesa_select_tex_image(ctx
, texObj
, target
, level
- 1);
2792 /* See if the prev level is defined and has an internal format which
2793 * matches the new internal format.
2796 prevImage
->Width
> 0 &&
2797 prevImage
->InternalFormat
== internalFormat
) {
2798 /* use the same format */
2799 ASSERT(prevImage
->TexFormat
!= MESA_FORMAT_NONE
);
2800 return prevImage
->TexFormat
;
2804 /* If the application requested compression to an S3TC format but we don't
2805 * have the DTXn library, force a generic compressed format instead.
2807 if (internalFormat
!= format
) {
2808 const GLenum before
= internalFormat
;
2810 switch (internalFormat
) {
2811 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
2812 if (!ctx
->Mesa_DXTn
)
2813 internalFormat
= GL_COMPRESSED_RGB
;
2815 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
2816 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
2817 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
2818 if (!ctx
->Mesa_DXTn
)
2819 internalFormat
= GL_COMPRESSED_RGBA
;
2825 if (before
!= internalFormat
) {
2827 "DXT compression requested (%s), "
2828 "but libtxc_dxtn library not installed. Using %s "
2830 _mesa_lookup_enum_by_nr(before
),
2831 _mesa_lookup_enum_by_nr(internalFormat
));
2835 /* choose format from scratch */
2836 f
= ctx
->Driver
.ChooseTextureFormat(ctx
, texObj
->Target
, internalFormat
,
2838 ASSERT(f
!= MESA_FORMAT_NONE
);
2843 * Adjust pixel unpack params and image dimensions to strip off the
2844 * one-pixel texture border.
2846 * Gallium and intel don't support texture borders. They've seldem been used
2847 * and seldom been implemented correctly anyway.
2849 * \param unpackNew returns the new pixel unpack parameters
2852 strip_texture_border(GLenum target
,
2853 GLint
*width
, GLint
*height
, GLint
*depth
,
2854 const struct gl_pixelstore_attrib
*unpack
,
2855 struct gl_pixelstore_attrib
*unpackNew
)
2861 *unpackNew
= *unpack
;
2863 if (unpackNew
->RowLength
== 0)
2864 unpackNew
->RowLength
= *width
;
2866 if (unpackNew
->ImageHeight
== 0)
2867 unpackNew
->ImageHeight
= *height
;
2869 assert(*width
>= 3);
2870 unpackNew
->SkipPixels
++; /* skip the border */
2871 *width
= *width
- 2; /* reduce the width by two border pixels */
2873 /* The min height of a texture with a border is 3 */
2874 if (*height
>= 3 && target
!= GL_TEXTURE_1D_ARRAY
) {
2875 unpackNew
->SkipRows
++; /* skip the border */
2876 *height
= *height
- 2; /* reduce the height by two border pixels */
2879 if (*depth
>= 3 && target
!= GL_TEXTURE_2D_ARRAY
) {
2880 unpackNew
->SkipImages
++; /* skip the border */
2881 *depth
= *depth
- 2; /* reduce the depth by two border pixels */
2887 * Common code to implement all the glTexImage1D/2D/3D functions
2888 * as well as glCompressedTexImage1D/2D/3D.
2889 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls.
2890 * \param format the user's image format (only used if !compressed)
2891 * \param type the user's image type (only used if !compressed)
2892 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls.
2895 teximage(struct gl_context
*ctx
, GLboolean compressed
, GLuint dims
,
2896 GLenum target
, GLint level
, GLint internalFormat
,
2897 GLsizei width
, GLsizei height
, GLsizei depth
,
2898 GLint border
, GLenum format
, GLenum type
,
2899 GLsizei imageSize
, const GLvoid
*pixels
)
2901 const char *func
= compressed
? "glCompressedTexImage" : "glTexImage";
2903 struct gl_pixelstore_attrib unpack_no_border
;
2904 const struct gl_pixelstore_attrib
*unpack
= &ctx
->Unpack
;
2906 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2908 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
)) {
2911 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n",
2913 _mesa_lookup_enum_by_nr(target
), level
,
2914 _mesa_lookup_enum_by_nr(internalFormat
),
2915 width
, height
, depth
, border
, pixels
);
2918 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2920 _mesa_lookup_enum_by_nr(target
), level
,
2921 _mesa_lookup_enum_by_nr(internalFormat
),
2922 width
, height
, depth
, border
,
2923 _mesa_lookup_enum_by_nr(format
),
2924 _mesa_lookup_enum_by_nr(type
), pixels
);
2927 internalFormat
= override_internal_format(internalFormat
, width
, height
);
2929 /* target error checking */
2930 if (!legal_teximage_target(ctx
, dims
, target
)) {
2931 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s%uD(target=%s)",
2932 func
, dims
, _mesa_lookup_enum_by_nr(target
));
2936 /* general error checking */
2938 error
= compressed_texture_error_check(ctx
, dims
, target
, level
,
2940 width
, height
, depth
,
2944 error
= texture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2945 format
, type
, width
, height
, depth
, border
);
2948 /* Here we convert a cpal compressed image into a regular glTexImage2D
2949 * call by decompressing the texture. If we really want to support cpal
2950 * textures in any driver this would have to be changed.
2952 if (ctx
->API
== API_OPENGLES
&& compressed
&& !error
&& dims
== 2) {
2953 switch (internalFormat
) {
2954 case GL_PALETTE4_RGB8_OES
:
2955 case GL_PALETTE4_RGBA8_OES
:
2956 case GL_PALETTE4_R5_G6_B5_OES
:
2957 case GL_PALETTE4_RGBA4_OES
:
2958 case GL_PALETTE4_RGB5_A1_OES
:
2959 case GL_PALETTE8_RGB8_OES
:
2960 case GL_PALETTE8_RGBA8_OES
:
2961 case GL_PALETTE8_R5_G6_B5_OES
:
2962 case GL_PALETTE8_RGBA4_OES
:
2963 case GL_PALETTE8_RGB5_A1_OES
:
2964 _mesa_cpal_compressed_teximage2d(target
, level
, internalFormat
,
2965 width
, height
, imageSize
, pixels
);
2970 if (_mesa_is_proxy_texture(target
)) {
2971 /* Proxy texture: just clear or set state depending on error checking */
2972 struct gl_texture_image
*texImage
=
2973 get_proxy_tex_image(ctx
, target
, level
);
2974 gl_format texFormat
= MESA_FORMAT_NONE
;
2977 /* No parameter errors. Choose a texture format and see if we
2978 * can really allocate the texture.
2980 struct gl_texture_object
*texObj
=
2981 _mesa_get_current_tex_object(ctx
, target
);
2982 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
2983 internalFormat
, format
, type
);
2984 if (!legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
2985 error
= PROXY_ERROR
;
2989 if (error
== PROXY_ERROR
) {
2990 /* image too large, etc. Clear all proxy texture image parameters. */
2992 clear_teximage_fields(texImage
);
2994 else if (error
== GL_FALSE
) {
2995 /* no error: store the teximage parameters */
2997 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, depth
,
2998 border
, internalFormat
, texFormat
);
3001 /* other, regular error (was already recorded) */
3005 /* non-proxy target */
3006 const GLuint face
= _mesa_tex_target_to_face(target
);
3007 struct gl_texture_object
*texObj
;
3008 struct gl_texture_image
*texImage
;
3011 return; /* error was recorded */
3014 /* Allow a hardware driver to just strip out the border, to provide
3015 * reliable but slightly incorrect hardware rendering instead of
3016 * rarely-tested software fallback rendering.
3018 if (border
&& ctx
->Const
.StripTextureBorder
) {
3019 strip_texture_border(target
, &width
, &height
, &depth
, unpack
,
3022 unpack
= &unpack_no_border
;
3025 if (ctx
->NewState
& _NEW_PIXEL
)
3026 _mesa_update_state(ctx
);
3028 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3030 _mesa_lock_texture(ctx
, texObj
);
3032 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3035 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s%uD", func
, dims
);
3038 gl_format texFormat
;
3040 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3042 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3043 internalFormat
, format
,
3046 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
3047 _mesa_init_teximage_fields(ctx
, texImage
,
3048 width
, height
, depth
,
3049 border
, internalFormat
, texFormat
);
3051 /* Give the texture to the driver. <pixels> may be null. */
3053 ctx
->Driver
.CompressedTexImage(ctx
, dims
, texImage
,
3057 ctx
->Driver
.TexImage(ctx
, dims
, texImage
, format
,
3058 type
, pixels
, unpack
);
3061 check_gen_mipmap(ctx
, target
, texObj
, level
);
3063 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3065 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3068 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s%uD", func
, dims
);
3072 _mesa_unlock_texture(ctx
, texObj
);
3078 * Called from the API. Note that width includes the border.
3081 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalFormat
,
3082 GLsizei width
, GLint border
, GLenum format
,
3083 GLenum type
, const GLvoid
*pixels
)
3085 GET_CURRENT_CONTEXT(ctx
);
3086 teximage(ctx
, GL_FALSE
, 1, target
, level
, internalFormat
, width
, 1, 1,
3087 border
, format
, type
, 0, pixels
);
3092 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalFormat
,
3093 GLsizei width
, GLsizei height
, GLint border
,
3094 GLenum format
, GLenum type
,
3095 const GLvoid
*pixels
)
3097 GET_CURRENT_CONTEXT(ctx
);
3098 teximage(ctx
, GL_FALSE
, 2, target
, level
, internalFormat
, width
, height
, 1,
3099 border
, format
, type
, 0, pixels
);
3104 * Called by the API or display list executor.
3105 * Note that width and height include the border.
3108 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalFormat
,
3109 GLsizei width
, GLsizei height
, GLsizei depth
,
3110 GLint border
, GLenum format
, GLenum type
,
3111 const GLvoid
*pixels
)
3113 GET_CURRENT_CONTEXT(ctx
);
3114 teximage(ctx
, GL_FALSE
, 3, target
, level
, internalFormat
,
3115 width
, height
, depth
,
3116 border
, format
, type
, 0, pixels
);
3121 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalFormat
,
3122 GLsizei width
, GLsizei height
, GLsizei depth
,
3123 GLint border
, GLenum format
, GLenum type
,
3124 const GLvoid
*pixels
)
3126 _mesa_TexImage3D(target
, level
, (GLint
) internalFormat
, width
, height
,
3127 depth
, border
, format
, type
, pixels
);
3132 _mesa_EGLImageTargetTexture2DOES (GLenum target
, GLeglImageOES image
)
3134 struct gl_texture_object
*texObj
;
3135 struct gl_texture_image
*texImage
;
3137 GET_CURRENT_CONTEXT(ctx
);
3138 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3142 valid_target
= ctx
->Extensions
.OES_EGL_image
;
3144 case GL_TEXTURE_EXTERNAL_OES
:
3145 valid_target
= ctx
->Extensions
.OES_EGL_image_external
;
3148 valid_target
= false;
3152 if (!valid_target
) {
3153 _mesa_error(ctx
, GL_INVALID_ENUM
,
3154 "glEGLImageTargetTexture2D(target=%d)", target
);
3158 if (ctx
->NewState
& _NEW_PIXEL
)
3159 _mesa_update_state(ctx
);
3161 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3162 _mesa_lock_texture(ctx
, texObj
);
3164 if (texObj
->Immutable
) {
3165 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3166 "glEGLImageTargetTexture2D(texture is immutable)");
3167 _mesa_unlock_texture(ctx
, texObj
);
3171 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
3173 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glEGLImageTargetTexture2D");
3175 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3177 ctx
->Driver
.EGLImageTargetTexture2D(ctx
, target
,
3178 texObj
, texImage
, image
);
3180 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3182 _mesa_unlock_texture(ctx
, texObj
);
3189 * Implement all the glTexSubImage1/2/3D() functions.
3192 texsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3193 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3194 GLsizei width
, GLsizei height
, GLsizei depth
,
3195 GLenum format
, GLenum type
, const GLvoid
*pixels
)
3197 struct gl_texture_object
*texObj
;
3198 struct gl_texture_image
*texImage
;
3200 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3202 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3203 _mesa_debug(ctx
, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
3205 _mesa_lookup_enum_by_nr(target
), level
,
3206 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3207 _mesa_lookup_enum_by_nr(format
),
3208 _mesa_lookup_enum_by_nr(type
), pixels
);
3210 /* check target (proxies not allowed) */
3211 if (!legal_texsubimage_target(ctx
, dims
, target
)) {
3212 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
3213 dims
, _mesa_lookup_enum_by_nr(target
));
3217 if (ctx
->NewState
& _NEW_PIXEL
)
3218 _mesa_update_state(ctx
);
3220 if (subtexture_error_check(ctx
, dims
, target
, level
, xoffset
, yoffset
, zoffset
,
3221 width
, height
, depth
, format
, type
)) {
3222 return; /* error was detected */
3225 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3227 _mesa_lock_texture(ctx
, texObj
);
3229 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3231 if (subtexture_error_check2(ctx
, dims
, target
, level
,
3232 xoffset
, yoffset
, zoffset
,
3233 width
, height
, depth
,
3234 format
, type
, texImage
)) {
3235 /* error was recorded */
3237 else if (width
> 0 && height
> 0 && depth
> 0) {
3238 /* If we have a border, offset=-1 is legal. Bias by border width. */
3241 if (target
!= GL_TEXTURE_2D_ARRAY
)
3242 zoffset
+= texImage
->Border
;
3245 if (target
!= GL_TEXTURE_1D_ARRAY
)
3246 yoffset
+= texImage
->Border
;
3249 xoffset
+= texImage
->Border
;
3252 ctx
->Driver
.TexSubImage(ctx
, dims
, texImage
,
3253 xoffset
, yoffset
, zoffset
,
3254 width
, height
, depth
,
3255 format
, type
, pixels
, &ctx
->Unpack
);
3257 check_gen_mipmap(ctx
, target
, texObj
, level
);
3259 ctx
->NewState
|= _NEW_TEXTURE
;
3262 _mesa_unlock_texture(ctx
, texObj
);
3267 _mesa_TexSubImage1D( GLenum target
, GLint level
,
3268 GLint xoffset
, GLsizei width
,
3269 GLenum format
, GLenum type
,
3270 const GLvoid
*pixels
)
3272 GET_CURRENT_CONTEXT(ctx
);
3273 texsubimage(ctx
, 1, target
, level
,
3276 format
, type
, pixels
);
3281 _mesa_TexSubImage2D( GLenum target
, GLint level
,
3282 GLint xoffset
, GLint yoffset
,
3283 GLsizei width
, GLsizei height
,
3284 GLenum format
, GLenum type
,
3285 const GLvoid
*pixels
)
3287 GET_CURRENT_CONTEXT(ctx
);
3288 texsubimage(ctx
, 2, target
, level
,
3289 xoffset
, yoffset
, 0,
3291 format
, type
, pixels
);
3297 _mesa_TexSubImage3D( GLenum target
, GLint level
,
3298 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3299 GLsizei width
, GLsizei height
, GLsizei depth
,
3300 GLenum format
, GLenum type
,
3301 const GLvoid
*pixels
)
3303 GET_CURRENT_CONTEXT(ctx
);
3304 texsubimage(ctx
, 3, target
, level
,
3305 xoffset
, yoffset
, zoffset
,
3306 width
, height
, depth
,
3307 format
, type
, pixels
);
3313 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3314 * from. This depends on whether the texture contains color or depth values.
3316 static struct gl_renderbuffer
*
3317 get_copy_tex_image_source(struct gl_context
*ctx
, gl_format texFormat
)
3319 if (_mesa_get_format_bits(texFormat
, GL_DEPTH_BITS
) > 0) {
3320 /* reading from depth/stencil buffer */
3321 return ctx
->ReadBuffer
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
3324 /* copying from color buffer */
3325 return ctx
->ReadBuffer
->_ColorReadBuffer
;
3332 * Implement the glCopyTexImage1/2D() functions.
3335 copyteximage(struct gl_context
*ctx
, GLuint dims
,
3336 GLenum target
, GLint level
, GLenum internalFormat
,
3337 GLint x
, GLint y
, GLsizei width
, GLsizei height
, GLint border
)
3339 struct gl_texture_object
*texObj
;
3340 struct gl_texture_image
*texImage
;
3341 const GLuint face
= _mesa_tex_target_to_face(target
);
3343 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3345 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3346 _mesa_debug(ctx
, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3348 _mesa_lookup_enum_by_nr(target
), level
,
3349 _mesa_lookup_enum_by_nr(internalFormat
),
3350 x
, y
, width
, height
, border
);
3352 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3353 _mesa_update_state(ctx
);
3355 if (copytexture_error_check(ctx
, dims
, target
, level
, internalFormat
,
3356 width
, height
, border
))
3359 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3361 if (border
&& ctx
->Const
.StripTextureBorder
) {
3363 width
-= border
* 2;
3366 height
-= border
* 2;
3371 _mesa_lock_texture(ctx
, texObj
);
3373 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3376 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
3379 /* choose actual hw format */
3380 gl_format texFormat
= _mesa_choose_texture_format(ctx
, texObj
,
3385 if (legal_texture_size(ctx
, texFormat
, width
, height
, 1)) {
3386 GLint srcX
= x
, srcY
= y
, dstX
= 0, dstY
= 0, dstZ
= 0;
3388 /* Free old texture image */
3389 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3391 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, 1,
3392 border
, internalFormat
, texFormat
);
3394 /* Allocate texture memory (no pixel data yet) */
3395 ctx
->Driver
.TexImage(ctx
, dims
, texImage
,
3397 NULL
, &ctx
->Unpack
);
3399 if (_mesa_clip_copytexsubimage(ctx
, &dstX
, &dstY
, &srcX
, &srcY
,
3401 struct gl_renderbuffer
*srcRb
=
3402 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3404 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
, dstX
, dstY
, dstZ
,
3405 srcRb
, srcX
, srcY
, width
, height
);
3408 check_gen_mipmap(ctx
, target
, texObj
, level
);
3410 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3412 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3415 /* probably too large of image */
3416 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
3420 _mesa_unlock_texture(ctx
, texObj
);
3426 _mesa_CopyTexImage1D( GLenum target
, GLint level
,
3427 GLenum internalFormat
,
3429 GLsizei width
, GLint border
)
3431 GET_CURRENT_CONTEXT(ctx
);
3432 copyteximage(ctx
, 1, target
, level
, internalFormat
, x
, y
, width
, 1, border
);
3438 _mesa_CopyTexImage2D( GLenum target
, GLint level
, GLenum internalFormat
,
3439 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
3442 GET_CURRENT_CONTEXT(ctx
);
3443 copyteximage(ctx
, 2, target
, level
, internalFormat
,
3444 x
, y
, width
, height
, border
);
3450 * Implementation for glCopyTexSubImage1/2/3D() functions.
3453 copytexsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3454 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3455 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3457 struct gl_texture_object
*texObj
;
3458 struct gl_texture_image
*texImage
;
3460 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3462 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3463 _mesa_debug(ctx
, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
3465 _mesa_lookup_enum_by_nr(target
),
3466 level
, xoffset
, yoffset
, zoffset
, x
, y
, width
, height
);
3468 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3469 _mesa_update_state(ctx
);
3471 if (copytexsubimage_error_check1(ctx
, dims
, target
, level
))
3474 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3476 _mesa_lock_texture(ctx
, texObj
);
3478 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3480 if (copytexsubimage_error_check2(ctx
, dims
, target
, level
, xoffset
, yoffset
,
3481 zoffset
, width
, height
, texImage
)) {
3482 /* error was recored */
3485 /* If we have a border, offset=-1 is legal. Bias by border width. */
3488 if (target
!= GL_TEXTURE_2D_ARRAY
)
3489 zoffset
+= texImage
->Border
;
3492 if (target
!= GL_TEXTURE_1D_ARRAY
)
3493 yoffset
+= texImage
->Border
;
3496 xoffset
+= texImage
->Border
;
3499 if (_mesa_clip_copytexsubimage(ctx
, &xoffset
, &yoffset
, &x
, &y
,
3501 struct gl_renderbuffer
*srcRb
=
3502 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3504 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
,
3505 xoffset
, yoffset
, zoffset
,
3506 srcRb
, x
, y
, width
, height
);
3508 check_gen_mipmap(ctx
, target
, texObj
, level
);
3510 ctx
->NewState
|= _NEW_TEXTURE
;
3514 _mesa_unlock_texture(ctx
, texObj
);
3519 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
,
3520 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
3522 GET_CURRENT_CONTEXT(ctx
);
3523 copytexsubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, x
, y
, width
, 1);
3529 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
3530 GLint xoffset
, GLint yoffset
,
3531 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3533 GET_CURRENT_CONTEXT(ctx
);
3534 copytexsubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0, x
, y
,
3541 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
3542 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3543 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3545 GET_CURRENT_CONTEXT(ctx
);
3546 copytexsubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
3547 x
, y
, width
, height
);
3553 /**********************************************************************/
3554 /****** Compressed Textures ******/
3555 /**********************************************************************/
3559 * Error checking for glCompressedTexSubImage[123]D().
3560 * \warning There are some bad assumptions here about the size of compressed
3561 * texture tiles (multiple of 4) used to test the validity of the
3562 * offset and size parameters.
3563 * \return error code or GL_NO_ERROR.
3566 compressed_subtexture_error_check(struct gl_context
*ctx
, GLint dimensions
,
3567 GLenum target
, GLint level
,
3568 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3569 GLsizei width
, GLsizei height
, GLsizei depth
,
3570 GLenum format
, GLsizei imageSize
)
3572 GLint expectedSize
, maxLevels
= 0, maxTextureSize
;
3576 if (dimensions
== 1) {
3577 /* 1D compressed textures not allowed */
3578 return GL_INVALID_ENUM
;
3580 else if (dimensions
== 2) {
3581 if (target
== GL_PROXY_TEXTURE_2D
) {
3582 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3584 else if (target
== GL_TEXTURE_2D
) {
3585 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3587 else if (target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
) {
3588 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3589 return GL_INVALID_ENUM
; /*target*/
3590 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3592 else if (_mesa_is_cube_face(target
)) {
3593 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3594 return GL_INVALID_ENUM
; /*target*/
3595 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3598 return GL_INVALID_ENUM
; /*target*/
3601 else if (dimensions
== 3) {
3602 /* 3D compressed textures not allowed */
3603 return GL_INVALID_ENUM
;
3606 maxTextureSize
= 1 << (maxLevels
- 1);
3608 /* this will catch any invalid compressed format token */
3609 if (!_mesa_is_compressed_format(ctx
, format
))
3610 return GL_INVALID_ENUM
;
3612 if (width
< 1 || width
> maxTextureSize
)
3613 return GL_INVALID_VALUE
;
3615 if ((height
< 1 || height
> maxTextureSize
)
3617 return GL_INVALID_VALUE
;
3619 if (level
< 0 || level
>= maxLevels
)
3620 return GL_INVALID_VALUE
;
3623 * do checks which depend on compression block size
3625 get_compressed_block_size(format
, &bw
, &bh
);
3627 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0))
3628 return GL_INVALID_VALUE
;
3630 if ((width
% bw
!= 0) && width
!= 2 && width
!= 1)
3631 return GL_INVALID_VALUE
;
3633 if ((height
% bh
!= 0) && height
!= 2 && height
!= 1)
3634 return GL_INVALID_VALUE
;
3636 expectedSize
= compressed_tex_size(width
, height
, depth
, format
);
3637 if (expectedSize
!= imageSize
)
3638 return GL_INVALID_VALUE
;
3645 * Do second part of glCompressedTexSubImage error checking.
3646 * \return GL_TRUE if error found, GL_FALSE otherwise.
3649 compressed_subtexture_error_check2(struct gl_context
*ctx
, GLuint dims
,
3650 GLsizei width
, GLsizei height
,
3651 GLsizei depth
, GLenum format
,
3652 struct gl_texture_image
*texImage
)
3655 if ((GLint
) format
!= texImage
->InternalFormat
) {
3656 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3657 "glCompressedTexSubImage%uD(format=0x%x)", dims
, format
);
3661 if (compressedteximage_only_format(ctx
, format
)) {
3662 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3663 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)"
3668 if (((width
== 1 || width
== 2) &&
3669 width
!= (GLsizei
) texImage
->Width
) ||
3670 (width
> (GLsizei
) texImage
->Width
)) {
3671 _mesa_error(ctx
, GL_INVALID_VALUE
,
3672 "glCompressedTexSubImage%uD(width=%d)", dims
, width
);
3677 if (((height
== 1 || height
== 2) &&
3678 height
!= (GLsizei
) texImage
->Height
) ||
3679 (height
> (GLsizei
) texImage
->Height
)) {
3680 _mesa_error(ctx
, GL_INVALID_VALUE
,
3681 "glCompressedTexSubImage%uD(height=%d)", dims
, height
);
3687 if (((depth
== 1 || depth
== 2) &&
3688 depth
!= (GLsizei
) texImage
->Depth
) ||
3689 (depth
> (GLsizei
) texImage
->Depth
)) {
3690 _mesa_error(ctx
, GL_INVALID_VALUE
,
3691 "glCompressedTexSubImage%uD(depth=%d)", dims
, depth
);
3701 _mesa_CompressedTexImage1DARB(GLenum target
, GLint level
,
3702 GLenum internalFormat
, GLsizei width
,
3703 GLint border
, GLsizei imageSize
,
3706 GET_CURRENT_CONTEXT(ctx
);
3707 teximage(ctx
, GL_TRUE
, 1, target
, level
, internalFormat
,
3708 width
, 1, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3713 _mesa_CompressedTexImage2DARB(GLenum target
, GLint level
,
3714 GLenum internalFormat
, GLsizei width
,
3715 GLsizei height
, GLint border
, GLsizei imageSize
,
3718 GET_CURRENT_CONTEXT(ctx
);
3719 teximage(ctx
, GL_TRUE
, 2, target
, level
, internalFormat
,
3720 width
, height
, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3725 _mesa_CompressedTexImage3DARB(GLenum target
, GLint level
,
3726 GLenum internalFormat
, GLsizei width
,
3727 GLsizei height
, GLsizei depth
, GLint border
,
3728 GLsizei imageSize
, const GLvoid
*data
)
3730 GET_CURRENT_CONTEXT(ctx
);
3731 teximage(ctx
, GL_TRUE
, 3, target
, level
, internalFormat
,
3732 width
, height
, depth
, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3737 * Common helper for glCompressedTexSubImage1/2/3D().
3740 compressed_tex_sub_image(GLuint dims
, GLenum target
, GLint level
,
3741 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3742 GLsizei width
, GLsizei height
, GLsizei depth
,
3743 GLenum format
, GLsizei imageSize
, const GLvoid
*data
)
3745 struct gl_texture_object
*texObj
;
3746 struct gl_texture_image
*texImage
;
3748 GET_CURRENT_CONTEXT(ctx
);
3749 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3751 error
= compressed_subtexture_error_check(ctx
, dims
, target
, level
,
3752 xoffset
, 0, 0, /* pos */
3753 width
, height
, depth
, /* size */
3756 _mesa_error(ctx
, error
, "glCompressedTexSubImage%uD", dims
);
3760 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3762 _mesa_lock_texture(ctx
, texObj
);
3764 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3767 if (compressed_subtexture_error_check2(ctx
, dims
, width
, height
, depth
,
3768 format
, texImage
)) {
3769 /* error was recorded */
3771 else if (width
> 0 && height
> 0 && depth
> 0) {
3772 ctx
->Driver
.CompressedTexSubImage(ctx
, dims
, texImage
,
3773 xoffset
, yoffset
, zoffset
,
3774 width
, height
, depth
,
3775 format
, imageSize
, data
);
3777 check_gen_mipmap(ctx
, target
, texObj
, level
);
3779 ctx
->NewState
|= _NEW_TEXTURE
;
3782 _mesa_unlock_texture(ctx
, texObj
);
3787 _mesa_CompressedTexSubImage1DARB(GLenum target
, GLint level
, GLint xoffset
,
3788 GLsizei width
, GLenum format
,
3789 GLsizei imageSize
, const GLvoid
*data
)
3791 compressed_tex_sub_image(1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
3792 format
, imageSize
, data
);
3797 _mesa_CompressedTexSubImage2DARB(GLenum target
, GLint level
, GLint xoffset
,
3798 GLint yoffset
, GLsizei width
, GLsizei height
,
3799 GLenum format
, GLsizei imageSize
,
3802 compressed_tex_sub_image(2, target
, level
, xoffset
, yoffset
, 0,
3803 width
, height
, 1, format
, imageSize
, data
);
3808 _mesa_CompressedTexSubImage3DARB(GLenum target
, GLint level
, GLint xoffset
,
3809 GLint yoffset
, GLint zoffset
, GLsizei width
,
3810 GLsizei height
, GLsizei depth
, GLenum format
,
3811 GLsizei imageSize
, const GLvoid
*data
)
3813 compressed_tex_sub_image(3, target
, level
, xoffset
, yoffset
, zoffset
,
3814 width
, height
, depth
, format
, imageSize
, data
);
3818 get_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3820 switch (internalFormat
) {
3822 return MESA_FORMAT_A8
;
3824 return MESA_FORMAT_A16
;
3825 case GL_ALPHA16F_ARB
:
3826 return MESA_FORMAT_ALPHA_FLOAT16
;
3827 case GL_ALPHA32F_ARB
:
3828 return MESA_FORMAT_ALPHA_FLOAT32
;
3829 case GL_ALPHA8I_EXT
:
3830 return MESA_FORMAT_ALPHA_INT8
;
3831 case GL_ALPHA16I_EXT
:
3832 return MESA_FORMAT_ALPHA_INT16
;
3833 case GL_ALPHA32I_EXT
:
3834 return MESA_FORMAT_ALPHA_INT32
;
3835 case GL_ALPHA8UI_EXT
:
3836 return MESA_FORMAT_ALPHA_UINT8
;
3837 case GL_ALPHA16UI_EXT
:
3838 return MESA_FORMAT_ALPHA_UINT16
;
3839 case GL_ALPHA32UI_EXT
:
3840 return MESA_FORMAT_ALPHA_UINT32
;
3842 return MESA_FORMAT_L8
;
3843 case GL_LUMINANCE16
:
3844 return MESA_FORMAT_L16
;
3845 case GL_LUMINANCE16F_ARB
:
3846 return MESA_FORMAT_LUMINANCE_FLOAT16
;
3847 case GL_LUMINANCE32F_ARB
:
3848 return MESA_FORMAT_LUMINANCE_FLOAT32
;
3849 case GL_LUMINANCE8I_EXT
:
3850 return MESA_FORMAT_LUMINANCE_INT8
;
3851 case GL_LUMINANCE16I_EXT
:
3852 return MESA_FORMAT_LUMINANCE_INT16
;
3853 case GL_LUMINANCE32I_EXT
:
3854 return MESA_FORMAT_LUMINANCE_INT32
;
3855 case GL_LUMINANCE8UI_EXT
:
3856 return MESA_FORMAT_LUMINANCE_UINT8
;
3857 case GL_LUMINANCE16UI_EXT
:
3858 return MESA_FORMAT_LUMINANCE_UINT16
;
3859 case GL_LUMINANCE32UI_EXT
:
3860 return MESA_FORMAT_LUMINANCE_UINT32
;
3861 case GL_LUMINANCE8_ALPHA8
:
3862 return MESA_FORMAT_AL88
;
3863 case GL_LUMINANCE16_ALPHA16
:
3864 return MESA_FORMAT_AL1616
;
3865 case GL_LUMINANCE_ALPHA16F_ARB
:
3866 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
;
3867 case GL_LUMINANCE_ALPHA32F_ARB
:
3868 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
;
3869 case GL_LUMINANCE_ALPHA8I_EXT
:
3870 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3871 case GL_LUMINANCE_ALPHA16I_EXT
:
3872 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3873 case GL_LUMINANCE_ALPHA32I_EXT
:
3874 return MESA_FORMAT_LUMINANCE_ALPHA_INT16
;
3875 case GL_LUMINANCE_ALPHA8UI_EXT
:
3876 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8
;
3877 case GL_LUMINANCE_ALPHA16UI_EXT
:
3878 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16
;
3879 case GL_LUMINANCE_ALPHA32UI_EXT
:
3880 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32
;
3882 return MESA_FORMAT_I8
;
3883 case GL_INTENSITY16
:
3884 return MESA_FORMAT_I16
;
3885 case GL_INTENSITY16F_ARB
:
3886 return MESA_FORMAT_INTENSITY_FLOAT16
;
3887 case GL_INTENSITY32F_ARB
:
3888 return MESA_FORMAT_INTENSITY_FLOAT32
;
3889 case GL_INTENSITY8I_EXT
:
3890 return MESA_FORMAT_INTENSITY_INT8
;
3891 case GL_INTENSITY16I_EXT
:
3892 return MESA_FORMAT_INTENSITY_INT16
;
3893 case GL_INTENSITY32I_EXT
:
3894 return MESA_FORMAT_INTENSITY_INT32
;
3895 case GL_INTENSITY8UI_EXT
:
3896 return MESA_FORMAT_INTENSITY_UINT8
;
3897 case GL_INTENSITY16UI_EXT
:
3898 return MESA_FORMAT_INTENSITY_UINT16
;
3899 case GL_INTENSITY32UI_EXT
:
3900 return MESA_FORMAT_INTENSITY_UINT32
;
3902 return MESA_FORMAT_RGBA8888_REV
;
3904 return MESA_FORMAT_RGBA_16
;
3905 case GL_RGBA16F_ARB
:
3906 return MESA_FORMAT_RGBA_FLOAT16
;
3907 case GL_RGBA32F_ARB
:
3908 return MESA_FORMAT_RGBA_FLOAT32
;
3910 return MESA_FORMAT_RGBA_INT8
;
3911 case GL_RGBA16I_EXT
:
3912 return MESA_FORMAT_RGBA_INT16
;
3913 case GL_RGBA32I_EXT
:
3914 return MESA_FORMAT_RGBA_INT32
;
3915 case GL_RGBA8UI_EXT
:
3916 return MESA_FORMAT_RGBA_UINT8
;
3917 case GL_RGBA16UI_EXT
:
3918 return MESA_FORMAT_RGBA_UINT16
;
3919 case GL_RGBA32UI_EXT
:
3920 return MESA_FORMAT_RGBA_UINT32
;
3923 return MESA_FORMAT_GR88
;
3925 return MESA_FORMAT_RG1616
;
3927 return MESA_FORMAT_RG_FLOAT16
;
3929 return MESA_FORMAT_RG_FLOAT32
;
3931 return MESA_FORMAT_RG_INT8
;
3933 return MESA_FORMAT_RG_INT16
;
3935 return MESA_FORMAT_RG_INT32
;
3937 return MESA_FORMAT_RG_UINT8
;
3939 return MESA_FORMAT_RG_UINT16
;
3941 return MESA_FORMAT_RG_UINT32
;
3944 return MESA_FORMAT_R8
;
3946 return MESA_FORMAT_R16
;
3948 return MESA_FORMAT_R_FLOAT16
;
3950 return MESA_FORMAT_R_FLOAT32
;
3952 return MESA_FORMAT_R_INT8
;
3954 return MESA_FORMAT_R_INT16
;
3956 return MESA_FORMAT_R_INT32
;
3958 return MESA_FORMAT_R_UINT8
;
3960 return MESA_FORMAT_R_UINT16
;
3962 return MESA_FORMAT_R_UINT32
;
3965 return MESA_FORMAT_NONE
;
3970 validate_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3972 gl_format format
= get_texbuffer_format(ctx
, internalFormat
);
3975 if (format
== MESA_FORMAT_NONE
)
3976 return MESA_FORMAT_NONE
;
3978 datatype
= _mesa_get_format_datatype(format
);
3979 if (datatype
== GL_FLOAT
&& !ctx
->Extensions
.ARB_texture_float
)
3980 return MESA_FORMAT_NONE
;
3982 if (datatype
== GL_HALF_FLOAT
&& !ctx
->Extensions
.ARB_half_float_pixel
)
3983 return MESA_FORMAT_NONE
;
3985 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make
3986 * any mention of R/RG formats, but they appear in the GL 3.1 core
3989 if (ctx
->Version
<= 30) {
3990 GLenum base_format
= _mesa_get_format_base_format(format
);
3992 if (base_format
== GL_R
|| base_format
== GL_RG
)
3993 return MESA_FORMAT_NONE
;
3999 /** GL_ARB_texture_buffer_object */
4001 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
)
4003 struct gl_texture_object
*texObj
;
4004 struct gl_buffer_object
*bufObj
;
4007 GET_CURRENT_CONTEXT(ctx
);
4008 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
4010 if (!(ctx
->Extensions
.ARB_texture_buffer_object
4011 && _mesa_is_desktop_gl(ctx
))) {
4012 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer");
4016 if (target
!= GL_TEXTURE_BUFFER_ARB
) {
4017 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(target)");
4021 format
= validate_texbuffer_format(ctx
, internalFormat
);
4022 if (format
== MESA_FORMAT_NONE
) {
4023 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(internalFormat 0x%x)",
4028 bufObj
= _mesa_lookup_bufferobj(ctx
, buffer
);
4029 if (buffer
&& !bufObj
) {
4030 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer(buffer %u)", buffer
);
4034 texObj
= _mesa_get_current_tex_object(ctx
, target
);
4036 _mesa_lock_texture(ctx
, texObj
);
4038 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, bufObj
);
4039 texObj
->BufferObjectFormat
= internalFormat
;
4040 texObj
->_BufferObjectFormat
= format
;
4042 _mesa_unlock_texture(ctx
, texObj
);