2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 * Texture image-related functions.
33 #include "bufferobj.h"
37 #include "framebuffer.h"
42 #include "mfeatures.h"
44 #include "texcompress.h"
45 #include "texcompress_cpal.h"
50 #include "glformats.h"
53 /* Inexplicably, GL_HALF_FLOAT_OES has a different value than GL_HALF_FLOAT.
55 #ifndef GL_HALF_FLOAT_OES
56 #define GL_HALF_FLOAT_OES 0x8D61
60 * State changes which we care about for glCopyTex[Sub]Image() calls.
61 * In particular, we care about pixel transfer state and buffer state
62 * (such as glReadBuffer to make sure we read from the right renderbuffer).
64 #define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
69 * Return the simple base format for a given internal texture format.
70 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
72 * \param ctx GL context.
73 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
75 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
76 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
78 * This is the format which is used during texture application (i.e. the
79 * texture format and env mode determine the arithmetic used.
82 _mesa_base_tex_format( struct gl_context
*ctx
, GLint internalFormat
)
84 switch (internalFormat
) {
90 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_ALPHA
: -1;
97 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_LUMINANCE
: -1;
99 case GL_LUMINANCE_ALPHA
:
100 case GL_LUMINANCE4_ALPHA4
:
101 case GL_LUMINANCE6_ALPHA2
:
102 case GL_LUMINANCE8_ALPHA8
:
103 case GL_LUMINANCE12_ALPHA4
:
104 case GL_LUMINANCE12_ALPHA12
:
105 case GL_LUMINANCE16_ALPHA16
:
106 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_LUMINANCE_ALPHA
: -1;
112 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_INTENSITY
: -1;
114 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_RGB
: -1;
125 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_RGBA
: -1;
139 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
141 if (_mesa_is_gles(ctx
)) {
142 switch (internalFormat
) {
150 if (ctx
->Extensions
.ARB_ES2_compatibility
) {
151 switch (internalFormat
) {
159 if (ctx
->Extensions
.ARB_depth_texture
) {
160 switch (internalFormat
) {
161 case GL_DEPTH_COMPONENT
:
162 case GL_DEPTH_COMPONENT16
:
163 case GL_DEPTH_COMPONENT24
:
164 case GL_DEPTH_COMPONENT32
:
165 return GL_DEPTH_COMPONENT
;
171 switch (internalFormat
) {
172 case GL_COMPRESSED_ALPHA
:
174 case GL_COMPRESSED_LUMINANCE
:
176 case GL_COMPRESSED_LUMINANCE_ALPHA
:
177 return GL_LUMINANCE_ALPHA
;
178 case GL_COMPRESSED_INTENSITY
:
180 case GL_COMPRESSED_RGB
:
182 case GL_COMPRESSED_RGBA
:
188 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
) {
189 switch (internalFormat
) {
190 case GL_COMPRESSED_RGB_FXT1_3DFX
:
192 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
199 if (ctx
->Extensions
.EXT_texture_compression_s3tc
) {
200 switch (internalFormat
) {
201 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
203 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
204 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
205 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
212 if (ctx
->Extensions
.S3_s3tc
) {
213 switch (internalFormat
) {
225 if (ctx
->Extensions
.MESA_ycbcr_texture
) {
226 if (internalFormat
== GL_YCBCR_MESA
)
227 return GL_YCBCR_MESA
;
230 if (ctx
->Extensions
.ARB_texture_float
) {
231 switch (internalFormat
) {
232 case GL_ALPHA16F_ARB
:
233 case GL_ALPHA32F_ARB
:
241 case GL_INTENSITY16F_ARB
:
242 case GL_INTENSITY32F_ARB
:
244 case GL_LUMINANCE16F_ARB
:
245 case GL_LUMINANCE32F_ARB
:
247 case GL_LUMINANCE_ALPHA16F_ARB
:
248 case GL_LUMINANCE_ALPHA32F_ARB
:
249 return GL_LUMINANCE_ALPHA
;
255 if (ctx
->Extensions
.ATI_envmap_bumpmap
) {
256 switch (internalFormat
) {
265 if (ctx
->Extensions
.EXT_texture_snorm
) {
266 switch (internalFormat
) {
281 case GL_RGBA16_SNORM
:
284 case GL_ALPHA8_SNORM
:
285 case GL_ALPHA16_SNORM
:
287 case GL_LUMINANCE_SNORM
:
288 case GL_LUMINANCE8_SNORM
:
289 case GL_LUMINANCE16_SNORM
:
291 case GL_LUMINANCE_ALPHA_SNORM
:
292 case GL_LUMINANCE8_ALPHA8_SNORM
:
293 case GL_LUMINANCE16_ALPHA16_SNORM
:
294 return GL_LUMINANCE_ALPHA
;
295 case GL_INTENSITY_SNORM
:
296 case GL_INTENSITY8_SNORM
:
297 case GL_INTENSITY16_SNORM
:
304 if (ctx
->Extensions
.EXT_packed_depth_stencil
) {
305 switch (internalFormat
) {
306 case GL_DEPTH_STENCIL_EXT
:
307 case GL_DEPTH24_STENCIL8_EXT
:
308 return GL_DEPTH_STENCIL_EXT
;
314 if (ctx
->Extensions
.EXT_texture_sRGB
) {
315 switch (internalFormat
) {
318 case GL_COMPRESSED_SRGB_EXT
:
319 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
321 case GL_SRGB_ALPHA_EXT
:
322 case GL_SRGB8_ALPHA8_EXT
:
323 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
324 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
325 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
326 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
328 case GL_SLUMINANCE_ALPHA_EXT
:
329 case GL_SLUMINANCE8_ALPHA8_EXT
:
330 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
331 return GL_LUMINANCE_ALPHA
;
332 case GL_SLUMINANCE_EXT
:
333 case GL_SLUMINANCE8_EXT
:
334 case GL_COMPRESSED_SLUMINANCE_EXT
:
341 if (ctx
->Version
>= 30 ||
342 ctx
->Extensions
.EXT_texture_integer
) {
343 switch (internalFormat
) {
345 case GL_RGBA16UI_EXT
:
346 case GL_RGBA32UI_EXT
:
362 if (ctx
->Extensions
.EXT_texture_integer
) {
363 switch (internalFormat
) {
364 case GL_ALPHA8UI_EXT
:
365 case GL_ALPHA16UI_EXT
:
366 case GL_ALPHA32UI_EXT
:
368 case GL_ALPHA16I_EXT
:
369 case GL_ALPHA32I_EXT
:
371 case GL_INTENSITY8UI_EXT
:
372 case GL_INTENSITY16UI_EXT
:
373 case GL_INTENSITY32UI_EXT
:
374 case GL_INTENSITY8I_EXT
:
375 case GL_INTENSITY16I_EXT
:
376 case GL_INTENSITY32I_EXT
:
378 case GL_LUMINANCE8UI_EXT
:
379 case GL_LUMINANCE16UI_EXT
:
380 case GL_LUMINANCE32UI_EXT
:
381 case GL_LUMINANCE8I_EXT
:
382 case GL_LUMINANCE16I_EXT
:
383 case GL_LUMINANCE32I_EXT
:
385 case GL_LUMINANCE_ALPHA8UI_EXT
:
386 case GL_LUMINANCE_ALPHA16UI_EXT
:
387 case GL_LUMINANCE_ALPHA32UI_EXT
:
388 case GL_LUMINANCE_ALPHA8I_EXT
:
389 case GL_LUMINANCE_ALPHA16I_EXT
:
390 case GL_LUMINANCE_ALPHA32I_EXT
:
391 return GL_LUMINANCE_ALPHA
;
397 if (ctx
->Extensions
.ARB_texture_rg
) {
398 switch (internalFormat
) {
400 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
402 if (!ctx
->Extensions
.ARB_half_float_pixel
)
406 if (!ctx
->Extensions
.ARB_texture_float
)
415 if (ctx
->Version
< 30 && !ctx
->Extensions
.EXT_texture_integer
)
421 case GL_COMPRESSED_RED
:
425 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
427 if (!ctx
->Extensions
.ARB_half_float_pixel
)
431 if (!ctx
->Extensions
.ARB_texture_float
)
440 if (ctx
->Version
< 30 && !ctx
->Extensions
.EXT_texture_integer
)
446 case GL_COMPRESSED_RG
:
453 if (ctx
->Extensions
.EXT_texture_shared_exponent
) {
454 switch (internalFormat
) {
462 if (ctx
->Extensions
.EXT_packed_float
) {
463 switch (internalFormat
) {
464 case GL_R11F_G11F_B10F_EXT
:
471 if (ctx
->Extensions
.ARB_depth_buffer_float
) {
472 switch (internalFormat
) {
473 case GL_DEPTH_COMPONENT32F
:
474 return GL_DEPTH_COMPONENT
;
475 case GL_DEPTH32F_STENCIL8
:
476 return GL_DEPTH_STENCIL
;
482 if (ctx
->Extensions
.ARB_texture_compression_rgtc
) {
483 switch (internalFormat
) {
484 case GL_COMPRESSED_RED_RGTC1
:
485 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
487 case GL_COMPRESSED_RG_RGTC2
:
488 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
495 if (ctx
->Extensions
.EXT_texture_compression_latc
) {
496 switch (internalFormat
) {
497 case GL_COMPRESSED_LUMINANCE_LATC1_EXT
:
498 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT
:
500 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
:
501 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT
:
502 return GL_LUMINANCE_ALPHA
;
508 if (ctx
->Extensions
.ATI_texture_compression_3dc
) {
509 switch (internalFormat
) {
510 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
511 return GL_LUMINANCE_ALPHA
;
517 if (ctx
->Extensions
.OES_compressed_ETC1_RGB8_texture
) {
518 switch (internalFormat
) {
519 case GL_ETC1_RGB8_OES
:
526 if (ctx
->API
== API_OPENGLES
) {
527 switch (internalFormat
) {
528 case GL_PALETTE4_RGB8_OES
:
529 case GL_PALETTE4_R5_G6_B5_OES
:
530 case GL_PALETTE8_RGB8_OES
:
531 case GL_PALETTE8_R5_G6_B5_OES
:
533 case GL_PALETTE4_RGBA8_OES
:
534 case GL_PALETTE8_RGB5_A1_OES
:
535 case GL_PALETTE4_RGBA4_OES
:
536 case GL_PALETTE4_RGB5_A1_OES
:
537 case GL_PALETTE8_RGBA8_OES
:
538 case GL_PALETTE8_RGBA4_OES
:
545 return -1; /* error */
550 * For cube map faces, return a face index in [0,5].
551 * For other targets return 0;
554 _mesa_tex_target_to_face(GLenum target
)
556 if (_mesa_is_cube_face(target
))
557 return (GLuint
) target
- (GLuint
) GL_TEXTURE_CUBE_MAP_POSITIVE_X
;
565 * Install gl_texture_image in a gl_texture_object according to the target
566 * and level parameters.
568 * \param tObj texture object.
569 * \param target texture target.
570 * \param level image level.
571 * \param texImage texture image.
574 set_tex_image(struct gl_texture_object
*tObj
,
575 GLenum target
, GLint level
,
576 struct gl_texture_image
*texImage
)
578 const GLuint face
= _mesa_tex_target_to_face(target
);
582 if (target
== GL_TEXTURE_RECTANGLE_NV
|| target
== GL_TEXTURE_EXTERNAL_OES
)
585 tObj
->Image
[face
][level
] = texImage
;
587 /* Set the 'back' pointer */
588 texImage
->TexObject
= tObj
;
589 texImage
->Level
= level
;
590 texImage
->Face
= face
;
595 * Allocate a texture image structure.
597 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
600 * \return a pointer to gl_texture_image struct with all fields initialized to
603 struct gl_texture_image
*
604 _mesa_new_texture_image( struct gl_context
*ctx
)
607 return CALLOC_STRUCT(gl_texture_image
);
612 * Free a gl_texture_image and associated data.
613 * This function is a fallback called via ctx->Driver.DeleteTextureImage().
615 * \param texImage texture image.
617 * Free the texture image structure and the associated image data.
620 _mesa_delete_texture_image(struct gl_context
*ctx
,
621 struct gl_texture_image
*texImage
)
623 /* Free texImage->Data and/or any other driver-specific texture
626 ASSERT(ctx
->Driver
.FreeTextureImageBuffer
);
627 ctx
->Driver
.FreeTextureImageBuffer( ctx
, texImage
);
633 * Test if a target is a proxy target.
635 * \param target texture target.
637 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
640 _mesa_is_proxy_texture(GLenum target
)
643 * NUM_TEXTURE_TARGETS should match number of terms below, except there's no
644 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
646 assert(NUM_TEXTURE_TARGETS
== 7 + 2);
648 return (target
== GL_PROXY_TEXTURE_1D
||
649 target
== GL_PROXY_TEXTURE_2D
||
650 target
== GL_PROXY_TEXTURE_3D
||
651 target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
652 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
||
653 target
== GL_PROXY_TEXTURE_1D_ARRAY_EXT
||
654 target
== GL_PROXY_TEXTURE_2D_ARRAY_EXT
);
659 * Return the proxy target which corresponds to the given texture target
662 _mesa_get_proxy_target(GLenum target
)
666 case GL_PROXY_TEXTURE_1D
:
667 return GL_PROXY_TEXTURE_1D
;
669 case GL_PROXY_TEXTURE_2D
:
670 return GL_PROXY_TEXTURE_2D
;
672 case GL_PROXY_TEXTURE_3D
:
673 return GL_PROXY_TEXTURE_3D
;
674 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
675 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
676 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
677 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
678 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
679 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
680 case GL_TEXTURE_CUBE_MAP_ARB
:
681 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
682 return GL_PROXY_TEXTURE_CUBE_MAP_ARB
;
683 case GL_TEXTURE_RECTANGLE_NV
:
684 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
685 return GL_PROXY_TEXTURE_RECTANGLE_NV
;
686 case GL_TEXTURE_1D_ARRAY_EXT
:
687 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
688 return GL_PROXY_TEXTURE_1D_ARRAY_EXT
;
689 case GL_TEXTURE_2D_ARRAY_EXT
:
690 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
691 return GL_PROXY_TEXTURE_2D_ARRAY_EXT
;
693 _mesa_problem(NULL
, "unexpected target in _mesa_get_proxy_target()");
700 * Get the texture object that corresponds to the target of the given
701 * texture unit. The target should have already been checked for validity.
703 * \param ctx GL context.
704 * \param texUnit texture unit.
705 * \param target texture target.
707 * \return pointer to the texture object on success, or NULL on failure.
709 struct gl_texture_object
*
710 _mesa_select_tex_object(struct gl_context
*ctx
,
711 const struct gl_texture_unit
*texUnit
,
714 const GLboolean arrayTex
= (ctx
->Extensions
.MESA_texture_array
||
715 ctx
->Extensions
.EXT_texture_array
);
719 return texUnit
->CurrentTex
[TEXTURE_1D_INDEX
];
720 case GL_PROXY_TEXTURE_1D
:
721 return ctx
->Texture
.ProxyTex
[TEXTURE_1D_INDEX
];
723 return texUnit
->CurrentTex
[TEXTURE_2D_INDEX
];
724 case GL_PROXY_TEXTURE_2D
:
725 return ctx
->Texture
.ProxyTex
[TEXTURE_2D_INDEX
];
727 return texUnit
->CurrentTex
[TEXTURE_3D_INDEX
];
728 case GL_PROXY_TEXTURE_3D
:
729 return ctx
->Texture
.ProxyTex
[TEXTURE_3D_INDEX
];
730 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
731 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
732 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
733 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
734 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
735 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
736 case GL_TEXTURE_CUBE_MAP_ARB
:
737 return ctx
->Extensions
.ARB_texture_cube_map
738 ? texUnit
->CurrentTex
[TEXTURE_CUBE_INDEX
] : NULL
;
739 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
740 return ctx
->Extensions
.ARB_texture_cube_map
741 ? ctx
->Texture
.ProxyTex
[TEXTURE_CUBE_INDEX
] : NULL
;
742 case GL_TEXTURE_RECTANGLE_NV
:
743 return ctx
->Extensions
.NV_texture_rectangle
744 ? texUnit
->CurrentTex
[TEXTURE_RECT_INDEX
] : NULL
;
745 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
746 return ctx
->Extensions
.NV_texture_rectangle
747 ? ctx
->Texture
.ProxyTex
[TEXTURE_RECT_INDEX
] : NULL
;
748 case GL_TEXTURE_1D_ARRAY_EXT
:
749 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
750 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
751 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
752 case GL_TEXTURE_2D_ARRAY_EXT
:
753 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
754 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
755 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
756 case GL_TEXTURE_BUFFER
:
757 return _mesa_is_desktop_gl(ctx
)
758 && ctx
->Extensions
.ARB_texture_buffer_object
759 ? texUnit
->CurrentTex
[TEXTURE_BUFFER_INDEX
] : NULL
;
760 case GL_TEXTURE_EXTERNAL_OES
:
761 return ctx
->Extensions
.OES_EGL_image_external
762 ? texUnit
->CurrentTex
[TEXTURE_EXTERNAL_INDEX
] : NULL
;
764 _mesa_problem(NULL
, "bad target in _mesa_select_tex_object()");
771 * Return pointer to texture object for given target on current texture unit.
773 struct gl_texture_object
*
774 _mesa_get_current_tex_object(struct gl_context
*ctx
, GLenum target
)
776 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
777 return _mesa_select_tex_object(ctx
, texUnit
, target
);
782 * Get a texture image pointer from a texture object, given a texture
783 * target and mipmap level. The target and level parameters should
784 * have already been error-checked.
786 * \param ctx GL context.
787 * \param texObj texture unit.
788 * \param target texture target.
789 * \param level image level.
791 * \return pointer to the texture image structure, or NULL on failure.
793 struct gl_texture_image
*
794 _mesa_select_tex_image(struct gl_context
*ctx
,
795 const struct gl_texture_object
*texObj
,
796 GLenum target
, GLint level
)
798 const GLuint face
= _mesa_tex_target_to_face(target
);
802 ASSERT(level
< MAX_TEXTURE_LEVELS
);
804 return texObj
->Image
[face
][level
];
809 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
810 * it and install it. Only return NULL if passed a bad parameter or run
813 struct gl_texture_image
*
814 _mesa_get_tex_image(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
815 GLenum target
, GLint level
)
817 struct gl_texture_image
*texImage
;
822 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
824 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
826 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "texture image allocation");
830 set_tex_image(texObj
, target
, level
, texImage
);
838 * Return pointer to the specified proxy texture image.
839 * Note that proxy textures are per-context, not per-texture unit.
840 * \return pointer to texture image or NULL if invalid target, invalid
841 * level, or out of memory.
843 static struct gl_texture_image
*
844 get_proxy_tex_image(struct gl_context
*ctx
, GLenum target
, GLint level
)
846 struct gl_texture_image
*texImage
;
853 case GL_PROXY_TEXTURE_1D
:
854 if (level
>= ctx
->Const
.MaxTextureLevels
)
856 texIndex
= TEXTURE_1D_INDEX
;
858 case GL_PROXY_TEXTURE_2D
:
859 if (level
>= ctx
->Const
.MaxTextureLevels
)
861 texIndex
= TEXTURE_2D_INDEX
;
863 case GL_PROXY_TEXTURE_3D
:
864 if (level
>= ctx
->Const
.Max3DTextureLevels
)
866 texIndex
= TEXTURE_3D_INDEX
;
868 case GL_PROXY_TEXTURE_CUBE_MAP
:
869 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
871 texIndex
= TEXTURE_CUBE_INDEX
;
873 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
876 texIndex
= TEXTURE_RECT_INDEX
;
878 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
879 if (level
>= ctx
->Const
.MaxTextureLevels
)
881 texIndex
= TEXTURE_1D_ARRAY_INDEX
;
883 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
884 if (level
>= ctx
->Const
.MaxTextureLevels
)
886 texIndex
= TEXTURE_2D_ARRAY_INDEX
;
892 texImage
= ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
];
894 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
896 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "proxy texture allocation");
899 ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
] = texImage
;
900 /* Set the 'back' pointer */
901 texImage
->TexObject
= ctx
->Texture
.ProxyTex
[texIndex
];
908 * Get the maximum number of allowed mipmap levels.
910 * \param ctx GL context.
911 * \param target texture target.
913 * \return the maximum number of allowed mipmap levels for the given
914 * texture target, or zero if passed a bad target.
919 _mesa_max_texture_levels(struct gl_context
*ctx
, GLenum target
)
923 case GL_PROXY_TEXTURE_1D
:
925 case GL_PROXY_TEXTURE_2D
:
926 return ctx
->Const
.MaxTextureLevels
;
928 case GL_PROXY_TEXTURE_3D
:
929 return ctx
->Const
.Max3DTextureLevels
;
930 case GL_TEXTURE_CUBE_MAP
:
931 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
932 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
933 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
934 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
935 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
936 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
937 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
938 return ctx
->Extensions
.ARB_texture_cube_map
939 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
940 case GL_TEXTURE_RECTANGLE_NV
:
941 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
942 return ctx
->Extensions
.NV_texture_rectangle
? 1 : 0;
943 case GL_TEXTURE_1D_ARRAY_EXT
:
944 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
945 case GL_TEXTURE_2D_ARRAY_EXT
:
946 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
947 return (ctx
->Extensions
.MESA_texture_array
||
948 ctx
->Extensions
.EXT_texture_array
)
949 ? ctx
->Const
.MaxTextureLevels
: 0;
950 case GL_TEXTURE_BUFFER
:
951 return _mesa_is_desktop_gl(ctx
)
952 && ctx
->Extensions
.ARB_texture_buffer_object
954 case GL_TEXTURE_EXTERNAL_OES
:
957 return 0; /* bad target */
963 * Return number of dimensions per mipmap level for the given texture target.
966 _mesa_get_texture_dimensions(GLenum target
)
970 case GL_PROXY_TEXTURE_1D
:
973 case GL_TEXTURE_RECTANGLE
:
974 case GL_TEXTURE_CUBE_MAP
:
975 case GL_PROXY_TEXTURE_2D
:
976 case GL_PROXY_TEXTURE_RECTANGLE
:
977 case GL_PROXY_TEXTURE_CUBE_MAP
:
978 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
979 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
980 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
981 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
982 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
983 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
984 case GL_TEXTURE_1D_ARRAY
:
985 case GL_PROXY_TEXTURE_1D_ARRAY
:
986 case GL_TEXTURE_EXTERNAL_OES
:
989 case GL_PROXY_TEXTURE_3D
:
990 case GL_TEXTURE_2D_ARRAY
:
991 case GL_PROXY_TEXTURE_2D_ARRAY
:
993 case GL_TEXTURE_BUFFER
:
996 _mesa_problem(NULL
, "invalid target 0x%x in get_texture_dimensions()",
1005 #if 000 /* not used anymore */
1007 * glTexImage[123]D can accept a NULL image pointer. In this case we
1008 * create a texture image with unspecified image contents per the OpenGL
1012 make_null_texture(GLint width
, GLint height
, GLint depth
, GLenum format
)
1014 const GLint components
= _mesa_components_in_format(format
);
1015 const GLint numPixels
= width
* height
* depth
;
1016 GLubyte
*data
= (GLubyte
*) malloc(numPixels
* components
* sizeof(GLubyte
));
1020 * Let's see if anyone finds this. If glTexImage2D() is called with
1021 * a NULL image pointer then load the texture image with something
1022 * interesting instead of leaving it indeterminate.
1025 static const char message
[8][32] = {
1026 " X X XXXXX XXX X ",
1027 " XX XX X X X X X ",
1029 " X X XXXX XXX XXXXX ",
1032 " X X XXXXX XXX X X ",
1036 GLubyte
*imgPtr
= data
;
1038 for (h
= 0; h
< depth
; h
++) {
1039 for (i
= 0; i
< height
; i
++) {
1040 GLint srcRow
= 7 - (i
% 8);
1041 for (j
= 0; j
< width
; j
++) {
1042 GLint srcCol
= j
% 32;
1043 GLubyte texel
= (message
[srcRow
][srcCol
]=='X') ? 255 : 70;
1044 for (k
= 0; k
< components
; k
++) {
1060 * Set the size and format-related fields of a gl_texture_image struct
1061 * to zero. This is used when a proxy texture test fails.
1064 clear_teximage_fields(struct gl_texture_image
*img
)
1067 img
->_BaseFormat
= 0;
1068 img
->InternalFormat
= 0;
1077 img
->HeightLog2
= 0;
1079 img
->TexFormat
= MESA_FORMAT_NONE
;
1084 * Initialize basic fields of the gl_texture_image struct.
1086 * \param ctx GL context.
1087 * \param img texture image structure to be initialized.
1088 * \param width image width.
1089 * \param height image height.
1090 * \param depth image depth.
1091 * \param border image border.
1092 * \param internalFormat internal format.
1093 * \param format the actual hardware format (one of MESA_FORMAT_*)
1095 * Fills in the fields of \p img with the given information.
1096 * Note: width, height and depth include the border.
1099 _mesa_init_teximage_fields(struct gl_context
*ctx
,
1100 struct gl_texture_image
*img
,
1101 GLsizei width
, GLsizei height
, GLsizei depth
,
1102 GLint border
, GLenum internalFormat
,
1108 ASSERT(height
>= 0);
1111 target
= img
->TexObject
->Target
;
1112 img
->_BaseFormat
= _mesa_base_tex_format( ctx
, internalFormat
);
1113 ASSERT(img
->_BaseFormat
> 0);
1114 img
->InternalFormat
= internalFormat
;
1115 img
->Border
= border
;
1117 img
->Height
= height
;
1120 img
->Width2
= width
- 2 * border
; /* == 1 << img->WidthLog2; */
1121 img
->WidthLog2
= _mesa_logbase2(img
->Width2
);
1125 case GL_TEXTURE_BUFFER
:
1126 case GL_PROXY_TEXTURE_1D
:
1131 img
->HeightLog2
= 0;
1138 case GL_TEXTURE_1D_ARRAY
:
1139 case GL_PROXY_TEXTURE_1D_ARRAY
:
1140 img
->Height2
= height
; /* no border */
1141 img
->HeightLog2
= 0; /* not used */
1149 case GL_TEXTURE_RECTANGLE
:
1150 case GL_TEXTURE_CUBE_MAP
:
1151 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1152 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1153 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1154 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1155 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1156 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1157 case GL_TEXTURE_EXTERNAL_OES
:
1158 case GL_PROXY_TEXTURE_2D
:
1159 case GL_PROXY_TEXTURE_RECTANGLE
:
1160 case GL_PROXY_TEXTURE_CUBE_MAP
:
1161 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1162 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1169 case GL_TEXTURE_2D_ARRAY
:
1170 case GL_PROXY_TEXTURE_2D_ARRAY
:
1171 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1172 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1173 img
->Depth2
= depth
; /* no border */
1174 img
->DepthLog2
= 0; /* not used */
1177 case GL_PROXY_TEXTURE_3D
:
1178 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1179 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1180 img
->Depth2
= depth
- 2 * border
; /* == 1 << img->DepthLog2; */
1181 img
->DepthLog2
= _mesa_logbase2(img
->Depth2
);
1184 _mesa_problem(NULL
, "invalid target 0x%x in _mesa_init_teximage_fields()",
1188 img
->MaxLog2
= MAX2(img
->WidthLog2
, img
->HeightLog2
);
1189 img
->TexFormat
= format
;
1194 * Free and clear fields of the gl_texture_image struct.
1196 * \param ctx GL context.
1197 * \param texImage texture image structure to be cleared.
1199 * After the call, \p texImage will have no data associated with it. Its
1200 * fields are cleared so that its parent object will test incomplete.
1203 _mesa_clear_texture_image(struct gl_context
*ctx
,
1204 struct gl_texture_image
*texImage
)
1206 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
1207 clear_teximage_fields(texImage
);
1212 * Check the width, height, depth and border of a texture image are legal.
1213 * Used by all the glTexImage, glCompressedTexImage and glCopyTexImage
1215 * The target and level parameters will have already been validated.
1216 * \return GL_TRUE if size is OK, GL_FALSE otherwise.
1219 _mesa_legal_texture_dimensions(struct gl_context
*ctx
, GLenum target
,
1220 GLint level
, GLint width
, GLint height
,
1221 GLint depth
, GLint border
)
1227 case GL_PROXY_TEXTURE_1D
:
1228 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1); /* level zero size */
1229 maxSize
>>= level
; /* level size */
1230 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1232 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1233 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1239 case GL_PROXY_TEXTURE_2D
:
1240 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1242 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1244 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1246 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1247 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1249 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1255 case GL_PROXY_TEXTURE_3D
:
1256 maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
1258 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1260 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1262 if (depth
< 2 * border
|| depth
> 2 * border
+ maxSize
)
1264 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1265 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1267 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1269 if (depth
> 0 && !_mesa_is_pow_two(depth
- 2 * border
))
1274 case GL_TEXTURE_RECTANGLE_NV
:
1275 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1278 maxSize
= ctx
->Const
.MaxTextureRectSize
;
1279 if (width
< 0 || width
> maxSize
)
1281 if (height
< 0 || height
> maxSize
)
1285 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1286 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1287 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1288 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1289 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1290 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1291 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
1292 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1294 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1296 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1298 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1299 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1301 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1306 case GL_TEXTURE_1D_ARRAY_EXT
:
1307 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1308 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1310 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1312 if (height
< 1 || height
> ctx
->Const
.MaxArrayTextureLayers
)
1314 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1315 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1320 case GL_TEXTURE_2D_ARRAY_EXT
:
1321 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1322 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1324 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1326 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1328 if (depth
< 1 || depth
> ctx
->Const
.MaxArrayTextureLayers
)
1330 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1331 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1333 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1339 _mesa_problem(ctx
, "Invalid target in _mesa_legal_texture_dimensions()");
1346 * This is the fallback for Driver.TestProxyTexImage() for doing device-
1347 * specific texture image size checks.
1349 * A hardware driver might override this function if, for example, the
1350 * max 3D texture size is 512x512x64 (i.e. not a cube).
1352 * Note that width, height, depth == 0 is not an error. However, a
1353 * texture with zero width/height/depth will be considered "incomplete"
1354 * and texturing will effectively be disabled.
1356 * \param target any texture target/type
1357 * \param level as passed to glTexImage
1358 * \param format the MESA_FORMAT_x for the tex image
1359 * \param width as passed to glTexImage
1360 * \param height as passed to glTexImage
1361 * \param depth as passed to glTexImage
1362 * \param border as passed to glTexImage
1363 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1366 _mesa_test_proxy_teximage(struct gl_context
*ctx
, GLenum target
, GLint level
,
1368 GLint width
, GLint height
, GLint depth
, GLint border
)
1370 /* We just check if the image size is less than MaxTextureMbytes.
1371 * Some drivers may do more specific checks.
1373 uint64_t bytes
= _mesa_format_image_size64(format
, width
, height
, depth
);
1374 uint64_t mbytes
= bytes
/ (1024 * 1024); /* convert to MB */
1375 mbytes
*= _mesa_num_tex_faces(target
);
1376 return mbytes
<= (uint64_t) ctx
->Const
.MaxTextureMbytes
;
1381 * Return true if the format is only valid for glCompressedTexImage.
1384 compressedteximage_only_format(const struct gl_context
*ctx
, GLenum format
)
1387 case GL_ETC1_RGB8_OES
:
1388 case GL_PALETTE4_RGB8_OES
:
1389 case GL_PALETTE4_RGBA8_OES
:
1390 case GL_PALETTE4_R5_G6_B5_OES
:
1391 case GL_PALETTE4_RGBA4_OES
:
1392 case GL_PALETTE4_RGB5_A1_OES
:
1393 case GL_PALETTE8_RGB8_OES
:
1394 case GL_PALETTE8_RGBA8_OES
:
1395 case GL_PALETTE8_R5_G6_B5_OES
:
1396 case GL_PALETTE8_RGBA4_OES
:
1397 case GL_PALETTE8_RGB5_A1_OES
:
1406 * Helper function to determine whether a target and specific compression
1407 * format are supported.
1410 target_can_be_compressed(const struct gl_context
*ctx
, GLenum target
,
1413 (void) intFormat
; /* not used yet */
1417 case GL_PROXY_TEXTURE_2D
:
1418 return GL_TRUE
; /* true for any compressed format so far */
1419 case GL_PROXY_TEXTURE_CUBE_MAP
:
1420 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1421 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1422 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1423 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1424 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1425 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1426 return ctx
->Extensions
.ARB_texture_cube_map
;
1427 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1428 case GL_TEXTURE_2D_ARRAY_EXT
:
1429 return (ctx
->Extensions
.MESA_texture_array
||
1430 ctx
->Extensions
.EXT_texture_array
);
1438 * Check if the given texture target value is legal for a
1439 * glTexImage1/2/3D call.
1442 legal_teximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1448 case GL_PROXY_TEXTURE_1D
:
1449 return _mesa_is_desktop_gl(ctx
);
1457 case GL_PROXY_TEXTURE_2D
:
1458 return _mesa_is_desktop_gl(ctx
);
1459 case GL_PROXY_TEXTURE_CUBE_MAP
:
1460 return _mesa_is_desktop_gl(ctx
)
1461 && ctx
->Extensions
.ARB_texture_cube_map
;
1462 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1463 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1464 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1465 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1466 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1467 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1468 return ctx
->Extensions
.ARB_texture_cube_map
;
1469 case GL_TEXTURE_RECTANGLE_NV
:
1470 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1471 return _mesa_is_desktop_gl(ctx
)
1472 && ctx
->Extensions
.NV_texture_rectangle
;
1473 case GL_TEXTURE_1D_ARRAY_EXT
:
1474 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1475 return _mesa_is_desktop_gl(ctx
)
1476 && (ctx
->Extensions
.MESA_texture_array
||
1477 ctx
->Extensions
.EXT_texture_array
);
1485 case GL_PROXY_TEXTURE_3D
:
1486 return _mesa_is_desktop_gl(ctx
);
1487 case GL_TEXTURE_2D_ARRAY_EXT
:
1488 return (_mesa_is_desktop_gl(ctx
)
1489 && (ctx
->Extensions
.MESA_texture_array
||
1490 ctx
->Extensions
.EXT_texture_array
))
1491 || _mesa_is_gles3(ctx
);
1492 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1493 return _mesa_is_desktop_gl(ctx
)
1494 && (ctx
->Extensions
.MESA_texture_array
||
1495 ctx
->Extensions
.EXT_texture_array
);
1500 _mesa_problem(ctx
, "invalid dims=%u in legal_teximage_target()", dims
);
1507 * Check if the given texture target value is legal for a
1508 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1509 * The difference compared to legal_teximage_target() above is that
1510 * proxy targets are not supported.
1513 legal_texsubimage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1517 return _mesa_is_desktop_gl(ctx
) && target
== GL_TEXTURE_1D
;
1522 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1523 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1524 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1525 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1526 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1527 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1528 return ctx
->Extensions
.ARB_texture_cube_map
;
1529 case GL_TEXTURE_RECTANGLE_NV
:
1530 return _mesa_is_desktop_gl(ctx
)
1531 && ctx
->Extensions
.NV_texture_rectangle
;
1532 case GL_TEXTURE_1D_ARRAY_EXT
:
1533 return _mesa_is_desktop_gl(ctx
)
1534 && (ctx
->Extensions
.MESA_texture_array
||
1535 ctx
->Extensions
.EXT_texture_array
);
1543 case GL_TEXTURE_2D_ARRAY_EXT
:
1544 return (_mesa_is_desktop_gl(ctx
)
1545 && (ctx
->Extensions
.MESA_texture_array
||
1546 ctx
->Extensions
.EXT_texture_array
))
1547 || _mesa_is_gles3(ctx
);
1552 _mesa_problem(ctx
, "invalid dims=%u in legal_texsubimage_target()",
1560 * Helper function to determine if a texture object is mutable (in terms
1561 * of GL_ARB_texture_storage).
1564 mutable_tex_object(struct gl_context
*ctx
, GLenum target
)
1566 if (ctx
->Extensions
.ARB_texture_storage
) {
1567 struct gl_texture_object
*texObj
=
1568 _mesa_get_current_tex_object(ctx
, target
);
1569 return !texObj
->Immutable
;
1576 _mesa_es_error_check_format_and_type(GLenum format
, GLenum type
,
1577 unsigned dimensions
)
1579 bool type_valid
= true;
1584 case GL_LUMINANCE_ALPHA
:
1585 type_valid
= (type
== GL_UNSIGNED_BYTE
1587 || type
== GL_HALF_FLOAT_OES
);
1591 type_valid
= (type
== GL_UNSIGNED_BYTE
1592 || type
== GL_UNSIGNED_SHORT_5_6_5
1594 || type
== GL_HALF_FLOAT_OES
);
1598 type_valid
= (type
== GL_UNSIGNED_BYTE
1599 || type
== GL_UNSIGNED_SHORT_4_4_4_4
1600 || type
== GL_UNSIGNED_SHORT_5_5_5_1
1602 || type
== GL_HALF_FLOAT_OES
1603 || type
== GL_UNSIGNED_INT_2_10_10_10_REV
);
1606 case GL_DEPTH_COMPONENT
:
1607 /* This format is filtered against invalid dimensionalities elsewhere.
1609 type_valid
= (type
== GL_UNSIGNED_SHORT
1610 || type
== GL_UNSIGNED_INT
);
1613 case GL_DEPTH_STENCIL
:
1614 /* This format is filtered against invalid dimensionalities elsewhere.
1616 type_valid
= (type
== GL_UNSIGNED_INT_24_8
);
1620 type_valid
= (type
== GL_UNSIGNED_BYTE
);
1622 /* This feels like a bug in the EXT_texture_format_BGRA8888 spec, but
1623 * the format does not appear to be allowed for 3D textures in OpenGL
1626 if (dimensions
!= 2)
1627 return GL_INVALID_VALUE
;
1632 return GL_INVALID_VALUE
;
1635 return type_valid
? GL_NO_ERROR
: GL_INVALID_OPERATION
;
1641 * Return expected size of a compressed texture.
1644 compressed_tex_size(GLsizei width
, GLsizei height
, GLsizei depth
,
1647 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
1648 return _mesa_format_image_size(mesaFormat
, width
, height
, depth
);
1653 * Return compressed texture block size, in pixels.
1656 get_compressed_block_size(GLenum glformat
, GLuint
*bw
, GLuint
*bh
)
1658 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
1659 _mesa_get_format_block_size(mesaFormat
, bw
, bh
);
1664 * Test the glTexImage[123]D() parameters for errors.
1666 * \param ctx GL context.
1667 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1668 * \param target texture target given by the user (already validated).
1669 * \param level image level given by the user.
1670 * \param internalFormat internal format given by the user.
1671 * \param format pixel data format given by the user.
1672 * \param type pixel data type given by the user.
1673 * \param width image width given by the user.
1674 * \param height image height given by the user.
1675 * \param depth image depth given by the user.
1676 * \param border image border given by the user.
1678 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1680 * Verifies each of the parameters against the constants specified in
1681 * __struct gl_contextRec::Const and the supported extensions, and according
1682 * to the OpenGL specification.
1683 * Note that we don't fully error-check the width, height, depth values
1684 * here. That's done in _mesa_legal_texture_dimensions() which is used
1685 * by several other GL entrypoints. Plus, texture dims have a special
1686 * interaction with proxy textures.
1689 texture_error_check( struct gl_context
*ctx
,
1690 GLuint dimensions
, GLenum target
,
1691 GLint level
, GLint internalFormat
,
1692 GLenum format
, GLenum type
,
1693 GLint width
, GLint height
,
1694 GLint depth
, GLint border
)
1696 GLboolean colorFormat
;
1699 /* Even though there are no color-index textures, we still have to support
1700 * uploading color-index data and remapping it to RGB via the
1701 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1703 const GLboolean indexFormat
= (format
== GL_COLOR_INDEX
);
1705 /* Note: for proxy textures, some error conditions immediately generate
1706 * a GL error in the usual way. But others do not generate a GL error.
1707 * Instead, they cause the width, height, depth, format fields of the
1708 * texture image to be zeroed-out. The GL spec seems to indicate that the
1709 * zero-out behaviour is only used in cases related to memory allocation.
1713 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
1714 _mesa_error(ctx
, GL_INVALID_VALUE
,
1715 "glTexImage%dD(level=%d)", dimensions
, level
);
1720 if (border
< 0 || border
> 1 ||
1721 ((ctx
->API
!= API_OPENGL
||
1722 target
== GL_TEXTURE_RECTANGLE_NV
||
1723 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1724 _mesa_error(ctx
, GL_INVALID_VALUE
,
1725 "glTexImage%dD(border=%d)", dimensions
, border
);
1729 if (width
< 0 || height
< 0 || depth
< 0) {
1730 _mesa_error(ctx
, GL_INVALID_VALUE
,
1731 "glTexImage%dD(width, height or depth < 0)", dimensions
);
1735 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1736 * combinations of format, internalFormat, and type that can be used.
1737 * Formats and types that require additional extensions (e.g., GL_FLOAT
1738 * requires GL_OES_texture_float) are filtered elsewhere.
1740 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
1741 if (format
!= internalFormat
) {
1742 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1743 "glTexImage%dD(format = %s, internalFormat = %s)",
1745 _mesa_lookup_enum_by_nr(format
),
1746 _mesa_lookup_enum_by_nr(internalFormat
));
1750 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
1751 if (err
!= GL_NO_ERROR
) {
1752 _mesa_error(ctx
, err
,
1753 "glTexImage%dD(format = %s, type = %s)",
1755 _mesa_lookup_enum_by_nr(format
),
1756 _mesa_lookup_enum_by_nr(type
));
1761 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
1762 _mesa_is_cube_face(target
)) && width
!= height
) {
1763 _mesa_error(ctx
, GL_INVALID_VALUE
,
1764 "glTexImage2D(cube width != height)");
1768 /* Check internalFormat */
1769 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1770 _mesa_error(ctx
, GL_INVALID_VALUE
,
1771 "glTexImage%dD(internalFormat=%s)",
1772 dimensions
, _mesa_lookup_enum_by_nr(internalFormat
));
1776 /* Check incoming image format and type */
1777 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
1778 if (err
!= GL_NO_ERROR
) {
1779 _mesa_error(ctx
, err
,
1780 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1781 dimensions
, format
, type
);
1785 /* make sure internal format and format basically agree */
1786 colorFormat
= _mesa_is_color_format(format
);
1787 if ((_mesa_is_color_format(internalFormat
) && !colorFormat
&& !indexFormat
) ||
1788 (_mesa_is_depth_format(internalFormat
) != _mesa_is_depth_format(format
)) ||
1789 (_mesa_is_ycbcr_format(internalFormat
) != _mesa_is_ycbcr_format(format
)) ||
1790 (_mesa_is_depthstencil_format(internalFormat
) != _mesa_is_depthstencil_format(format
)) ||
1791 (_mesa_is_dudv_format(internalFormat
) != _mesa_is_dudv_format(format
))) {
1792 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1793 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1794 dimensions
, internalFormat
, format
);
1798 /* additional checks for ycbcr textures */
1799 if (internalFormat
== GL_YCBCR_MESA
) {
1800 ASSERT(ctx
->Extensions
.MESA_ycbcr_texture
);
1801 if (type
!= GL_UNSIGNED_SHORT_8_8_MESA
&&
1802 type
!= GL_UNSIGNED_SHORT_8_8_REV_MESA
) {
1804 _mesa_snprintf(message
, sizeof(message
),
1805 "glTexImage%dD(format/type YCBCR mismatch)",
1807 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", message
);
1808 return GL_TRUE
; /* error */
1810 if (target
!= GL_TEXTURE_2D
&&
1811 target
!= GL_PROXY_TEXTURE_2D
&&
1812 target
!= GL_TEXTURE_RECTANGLE_NV
&&
1813 target
!= GL_PROXY_TEXTURE_RECTANGLE_NV
) {
1814 _mesa_error(ctx
, GL_INVALID_ENUM
,
1815 "glTexImage%dD(bad target for YCbCr texture)",
1821 _mesa_snprintf(message
, sizeof(message
),
1822 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1823 dimensions
, border
);
1824 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", message
);
1829 /* additional checks for depth textures */
1830 if (_mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_COMPONENT
) {
1831 /* Only 1D, 2D, rect, array and cube textures supported, not 3D
1832 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */
1833 if (target
!= GL_TEXTURE_1D
&&
1834 target
!= GL_PROXY_TEXTURE_1D
&&
1835 target
!= GL_TEXTURE_2D
&&
1836 target
!= GL_PROXY_TEXTURE_2D
&&
1837 target
!= GL_TEXTURE_1D_ARRAY
&&
1838 target
!= GL_PROXY_TEXTURE_1D_ARRAY
&&
1839 target
!= GL_TEXTURE_2D_ARRAY
&&
1840 target
!= GL_PROXY_TEXTURE_2D_ARRAY
&&
1841 target
!= GL_TEXTURE_RECTANGLE_ARB
&&
1842 target
!= GL_PROXY_TEXTURE_RECTANGLE_ARB
&&
1843 !((_mesa_is_cube_face(target
) || target
== GL_PROXY_TEXTURE_CUBE_MAP
) &&
1844 (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_gpu_shader4
))) {
1845 _mesa_error(ctx
, GL_INVALID_ENUM
,
1846 "glTexImage%dD(bad target for depth texture)",
1852 /* additional checks for compressed textures */
1853 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
1854 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1855 _mesa_error(ctx
, GL_INVALID_ENUM
,
1856 "glTexImage%dD(target can't be compressed)", dimensions
);
1859 if (compressedteximage_only_format(ctx
, internalFormat
)) {
1860 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1861 "glTexImage%dD(no compression for format)", dimensions
);
1865 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1866 "glTexImage%dD(border!=0)", dimensions
);
1871 /* additional checks for integer textures */
1872 if ((ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) &&
1873 (_mesa_is_enum_format_integer(format
) !=
1874 _mesa_is_enum_format_integer(internalFormat
))) {
1875 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1876 "glTexImage%dD(integer/non-integer format mismatch)",
1881 if (!mutable_tex_object(ctx
, target
)) {
1882 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1883 "glTexImage%dD(immutable texture)", dimensions
);
1887 /* if we get here, the parameters are OK */
1893 * Error checking for glCompressedTexImage[123]D().
1894 * Note that the width, height and depth values are not fully error checked
1896 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1899 compressed_texture_error_check(struct gl_context
*ctx
, GLint dimensions
,
1900 GLenum target
, GLint level
,
1901 GLenum internalFormat
, GLsizei width
,
1902 GLsizei height
, GLsizei depth
, GLint border
,
1905 const GLint maxLevels
= _mesa_max_texture_levels(ctx
, target
);
1907 GLenum choose_format
;
1909 GLenum proxy_format
;
1910 GLenum error
= GL_NO_ERROR
;
1911 char *reason
= ""; /* no error */
1913 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1915 error
= GL_INVALID_ENUM
;
1919 /* This will detect any invalid internalFormat value */
1920 if (!_mesa_is_compressed_format(ctx
, internalFormat
)) {
1921 reason
= "internalFormat";
1922 error
= GL_INVALID_ENUM
;
1926 switch (internalFormat
) {
1928 case GL_PALETTE4_RGB8_OES
:
1929 case GL_PALETTE4_RGBA8_OES
:
1930 case GL_PALETTE4_R5_G6_B5_OES
:
1931 case GL_PALETTE4_RGBA4_OES
:
1932 case GL_PALETTE4_RGB5_A1_OES
:
1933 case GL_PALETTE8_RGB8_OES
:
1934 case GL_PALETTE8_RGBA8_OES
:
1935 case GL_PALETTE8_R5_G6_B5_OES
:
1936 case GL_PALETTE8_RGBA4_OES
:
1937 case GL_PALETTE8_RGB5_A1_OES
:
1938 _mesa_cpal_compressed_format_type(internalFormat
, &choose_format
,
1940 proxy_format
= choose_format
;
1942 /* check level (note that level should be zero or less!) */
1943 if (level
> 0 || level
< -maxLevels
) {
1945 error
= GL_INVALID_VALUE
;
1949 if (dimensions
!= 2) {
1950 reason
= "compressed paletted textures must be 2D";
1951 error
= GL_INVALID_OPERATION
;
1955 /* Figure out the expected texture size (in bytes). This will be
1956 * checked against the actual size later.
1958 expectedSize
= _mesa_cpal_compressed_size(level
, internalFormat
,
1961 /* This is for the benefit of the TestProxyTexImage below. It expects
1962 * level to be non-negative. OES_compressed_paletted_texture uses a
1963 * weird mechanism where the level specified to glCompressedTexImage2D
1964 * is -(n-1) number of levels in the texture, and the data specifies the
1965 * complete mipmap stack. This is done to ensure the palette is the
1966 * same for all levels.
1973 choose_format
= GL_NONE
;
1974 choose_type
= GL_NONE
;
1975 proxy_format
= internalFormat
;
1978 if (level
< 0 || level
>= maxLevels
) {
1980 error
= GL_INVALID_VALUE
;
1984 /* Figure out the expected texture size (in bytes). This will be
1985 * checked against the actual size later.
1987 expectedSize
= compressed_tex_size(width
, height
, depth
, internalFormat
);
1991 /* This should really never fail */
1992 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1993 reason
= "internalFormat";
1994 error
= GL_INVALID_ENUM
;
1998 /* No compressed formats support borders at this time */
2000 reason
= "border != 0";
2001 error
= GL_INVALID_VALUE
;
2005 /* For cube map, width must equal height */
2006 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
2007 _mesa_is_cube_face(target
)) && width
!= height
) {
2008 reason
= "width != height";
2009 error
= GL_INVALID_VALUE
;
2013 /* check image size against compression block size */
2014 /* XXX possibly move this into the _mesa_legal_texture_dimensions() func */
2016 gl_format texFormat
=
2017 ctx
->Driver
.ChooseTextureFormat(ctx
, target
, proxy_format
,
2018 choose_format
, choose_type
);
2021 _mesa_get_format_block_size(texFormat
, &bw
, &bh
);
2022 if ((width
> bw
&& width
% bw
> 0) ||
2023 (height
> bh
&& height
% bh
> 0)) {
2025 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is
2026 * generated [...] if any parameter combinations are not
2027 * supported by the specific compressed internal format.
2029 reason
= "invalid width or height for compression format";
2030 error
= GL_INVALID_OPERATION
;
2035 /* check image size in bytes */
2036 if (expectedSize
!= imageSize
) {
2037 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
2038 * if <imageSize> is not consistent with the format, dimensions, and
2039 * contents of the specified image.
2041 reason
= "imageSize inconsistant with width/height/format";
2042 error
= GL_INVALID_VALUE
;
2046 if (!mutable_tex_object(ctx
, target
)) {
2047 reason
= "immutable texture";
2048 error
= GL_INVALID_OPERATION
;
2055 _mesa_error(ctx
, error
, "glCompressedTexImage%dD(%s)", dimensions
, reason
);
2062 * Test glTexSubImage[123]D() parameters for errors.
2064 * \param ctx GL context.
2065 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2066 * \param target texture target given by the user (already validated)
2067 * \param level image level given by the user.
2068 * \param xoffset sub-image x offset given by the user.
2069 * \param yoffset sub-image y offset given by the user.
2070 * \param zoffset sub-image z offset given by the user.
2071 * \param format pixel data format given by the user.
2072 * \param type pixel data type given by the user.
2073 * \param width image width given by the user.
2074 * \param height image height given by the user.
2075 * \param depth image depth given by the user.
2077 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2079 * Verifies each of the parameters against the constants specified in
2080 * __struct gl_contextRec::Const and the supported extensions, and according
2081 * to the OpenGL specification.
2084 subtexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
2085 GLenum target
, GLint level
,
2086 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2087 GLint width
, GLint height
, GLint depth
,
2088 GLenum format
, GLenum type
)
2093 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2094 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage2D(level=%d)", level
);
2098 /* Check for negative sizes */
2100 _mesa_error(ctx
, GL_INVALID_VALUE
,
2101 "glTexSubImage%dD(width=%d)", dimensions
, width
);
2104 if (height
< 0 && dimensions
> 1) {
2105 _mesa_error(ctx
, GL_INVALID_VALUE
,
2106 "glTexSubImage%dD(height=%d)", dimensions
, height
);
2109 if (depth
< 0 && dimensions
> 2) {
2110 _mesa_error(ctx
, GL_INVALID_VALUE
,
2111 "glTexSubImage%dD(depth=%d)", dimensions
, depth
);
2115 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2116 * combinations of format and type that can be used. Formats and types
2117 * that require additional extensions (e.g., GL_FLOAT requires
2118 * GL_OES_texture_float) are filtered elsewhere.
2120 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2121 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
2122 if (err
!= GL_NO_ERROR
) {
2123 _mesa_error(ctx
, err
,
2124 "glTexSubImage%dD(format = %s, type = %s)",
2126 _mesa_lookup_enum_by_nr(format
),
2127 _mesa_lookup_enum_by_nr(type
));
2132 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
2133 if (err
!= GL_NO_ERROR
) {
2134 _mesa_error(ctx
, err
,
2135 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
2136 dimensions
, format
, type
);
2145 * Do second part of glTexSubImage which depends on the destination texture.
2146 * \return GL_TRUE if error recorded, GL_FALSE otherwise
2149 subtexture_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
2150 GLenum target
, GLint level
,
2151 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2152 GLint width
, GLint height
, GLint depth
,
2153 GLenum format
, GLenum type
,
2154 const struct gl_texture_image
*destTex
)
2157 /* undefined image level */
2158 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexSubImage%dD", dimensions
);
2162 if (xoffset
< -((GLint
)destTex
->Border
)) {
2163 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset)",
2167 if (xoffset
+ width
> (GLint
) (destTex
->Width
+ destTex
->Border
)) {
2168 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset+width)",
2172 if (dimensions
> 1) {
2173 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : destTex
->Border
;
2174 if (yoffset
< -yBorder
) {
2175 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset)",
2179 if (yoffset
+ height
> (GLint
) destTex
->Height
+ yBorder
) {
2180 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset+height)",
2185 if (dimensions
> 2) {
2186 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
) ? 0 : destTex
->Border
;
2187 if (zoffset
< -zBorder
) {
2188 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset)");
2191 if (zoffset
+ depth
> (GLint
) destTex
->Depth
+ zBorder
) {
2192 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset+depth)");
2197 if (_mesa_is_format_compressed(destTex
->TexFormat
)) {
2200 if (compressedteximage_only_format(ctx
, destTex
->InternalFormat
)) {
2201 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2202 "glTexSubImage%dD(no compression for format)", dimensions
);
2206 /* do tests which depend on compression block size */
2207 _mesa_get_format_block_size(destTex
->TexFormat
, &bw
, &bh
);
2209 /* offset must be multiple of block size */
2210 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0)) {
2211 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2212 "glTexSubImage%dD(xoffset = %d, yoffset = %d)",
2213 dimensions
, xoffset
, yoffset
);
2216 /* size must be multiple of bw by bh or equal to whole texture size */
2217 if ((width
% bw
!= 0) && (GLuint
) width
!= destTex
->Width
) {
2218 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2219 "glTexSubImage%dD(width = %d)", dimensions
, width
);
2222 if ((height
% bh
!= 0) && (GLuint
) height
!= destTex
->Height
) {
2223 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2224 "glTexSubImage%dD(height = %d)", dimensions
, height
);
2229 if (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) {
2230 /* both source and dest must be integer-valued, or neither */
2231 if (_mesa_is_format_integer_color(destTex
->TexFormat
) !=
2232 _mesa_is_enum_format_integer(format
)) {
2233 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2234 "glTexSubImage%dD(integer/non-integer format mismatch)",
2245 * Test glCopyTexImage[12]D() parameters for errors.
2247 * \param ctx GL context.
2248 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2249 * \param target texture target given by the user.
2250 * \param level image level given by the user.
2251 * \param internalFormat internal format given by the user.
2252 * \param width image width given by the user.
2253 * \param height image height given by the user.
2254 * \param border texture border.
2256 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2258 * Verifies each of the parameters against the constants specified in
2259 * __struct gl_contextRec::Const and the supported extensions, and according
2260 * to the OpenGL specification.
2263 copytexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
2264 GLenum target
, GLint level
, GLint internalFormat
,
2265 GLint width
, GLint height
, GLint border
)
2270 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2271 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexImage%uD(target=%s)",
2272 dimensions
, _mesa_lookup_enum_by_nr(target
));
2277 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2278 _mesa_error(ctx
, GL_INVALID_VALUE
,
2279 "glCopyTexImage%dD(level=%d)", dimensions
, level
);
2283 /* Check that the source buffer is complete */
2284 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2285 if (ctx
->ReadBuffer
->_Status
== 0) {
2286 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2288 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2289 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2290 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2294 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2295 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2296 "glCopyTexImage%dD(multisample FBO)",
2303 if (border
< 0 || border
> 1 ||
2304 ((ctx
->API
!= API_OPENGL
||
2305 target
== GL_TEXTURE_RECTANGLE_NV
||
2306 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
2307 _mesa_error(ctx
, GL_INVALID_VALUE
,
2308 "glCopyTexImage%dD(border=%d)", dimensions
, border
);
2312 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2315 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2316 switch (internalFormat
) {
2321 case GL_LUMINANCE_ALPHA
:
2324 _mesa_error(ctx
, GL_INVALID_VALUE
,
2325 "glCopyTexImage%dD(internalFormat)", dimensions
);
2330 baseFormat
= _mesa_base_tex_format(ctx
, internalFormat
);
2331 if (baseFormat
< 0) {
2332 _mesa_error(ctx
, GL_INVALID_VALUE
,
2333 "glCopyTexImage%dD(internalFormat)", dimensions
);
2337 if (!_mesa_source_buffer_exists(ctx
, baseFormat
)) {
2338 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2339 "glCopyTexImage%dD(missing readbuffer)", dimensions
);
2343 /* From the EXT_texture_integer spec:
2345 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2346 * if the texture internalformat is an integer format and the read color
2347 * buffer is not an integer format, or if the internalformat is not an
2348 * integer format and the read color buffer is an integer format."
2350 if (_mesa_is_color_format(internalFormat
)) {
2351 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2353 if (_mesa_is_enum_format_integer(rb
->InternalFormat
) !=
2354 _mesa_is_enum_format_integer(internalFormat
)) {
2355 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2356 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2361 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
2362 _mesa_is_cube_face(target
)) && width
!= height
) {
2363 _mesa_error(ctx
, GL_INVALID_VALUE
,
2364 "glTexImage2D(cube width != height)");
2368 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
2369 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2370 _mesa_error(ctx
, GL_INVALID_ENUM
,
2371 "glCopyTexImage%dD(target)", dimensions
);
2374 if (compressedteximage_only_format(ctx
, internalFormat
)) {
2375 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2376 "glCopyTexImage%dD(no compression for format)", dimensions
);
2380 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2381 "glCopyTexImage%dD(border!=0)", dimensions
);
2386 if (!mutable_tex_object(ctx
, target
)) {
2387 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2388 "glCopyTexImage%dD(immutable texture)", dimensions
);
2392 /* if we get here, the parameters are OK */
2398 * Test glCopyTexSubImage[12]D() parameters for errors.
2399 * Note that this is the first part of error checking.
2400 * See also copytexsubimage_error_check2() below for the second part.
2402 * \param ctx GL context.
2403 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2404 * \param target texture target given by the user.
2405 * \param level image level given by the user.
2407 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2410 copytexsubimage_error_check1( struct gl_context
*ctx
, GLuint dimensions
,
2411 GLenum target
, GLint level
)
2413 /* Check that the source buffer is complete */
2414 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2415 if (ctx
->ReadBuffer
->_Status
== 0) {
2416 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2418 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2419 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2420 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2424 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2425 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2426 "glCopyTexSubImage%dD(multisample FBO)",
2432 /* check target (proxies not allowed) */
2433 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2434 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexSubImage%uD(target=%s)",
2435 dimensions
, _mesa_lookup_enum_by_nr(target
));
2440 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2441 _mesa_error(ctx
, GL_INVALID_VALUE
,
2442 "glCopyTexSubImage%dD(level=%d)", dimensions
, level
);
2451 * Second part of error checking for glCopyTexSubImage[12]D().
2452 * \param xoffset sub-image x offset given by the user.
2453 * \param yoffset sub-image y offset given by the user.
2454 * \param zoffset sub-image z offset given by the user.
2455 * \param width image width given by the user.
2456 * \param height image height given by the user.
2459 copytexsubimage_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
2460 GLenum target
, GLint level
,
2461 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2462 GLsizei width
, GLsizei height
,
2463 const struct gl_texture_image
*teximage
)
2465 /* check that dest tex image exists */
2467 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2468 "glCopyTexSubImage%dD(undefined texture level: %d)",
2475 _mesa_error(ctx
, GL_INVALID_VALUE
,
2476 "glCopyTexSubImage%dD(width=%d)", dimensions
, width
);
2479 if (dimensions
> 1 && height
< 0) {
2480 _mesa_error(ctx
, GL_INVALID_VALUE
,
2481 "glCopyTexSubImage%dD(height=%d)", dimensions
, height
);
2485 /* check x/y offsets */
2486 if (xoffset
< -((GLint
)teximage
->Border
)) {
2487 _mesa_error(ctx
, GL_INVALID_VALUE
,
2488 "glCopyTexSubImage%dD(xoffset=%d)", dimensions
, xoffset
);
2491 if (xoffset
+ width
> (GLint
) (teximage
->Width
+ teximage
->Border
)) {
2492 _mesa_error(ctx
, GL_INVALID_VALUE
,
2493 "glCopyTexSubImage%dD(xoffset+width)", dimensions
);
2496 if (dimensions
> 1) {
2497 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : teximage
->Border
;
2498 if (yoffset
< -yBorder
) {
2499 _mesa_error(ctx
, GL_INVALID_VALUE
,
2500 "glCopyTexSubImage%dD(yoffset=%d)", dimensions
, yoffset
);
2503 /* NOTE: we're adding the border here, not subtracting! */
2504 if (yoffset
+ height
> (GLint
) teximage
->Height
+ yBorder
) {
2505 _mesa_error(ctx
, GL_INVALID_VALUE
,
2506 "glCopyTexSubImage%dD(yoffset+height)", dimensions
);
2511 /* check z offset */
2512 if (dimensions
> 2) {
2513 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
) ? 0 : teximage
->Border
;
2514 if (zoffset
< -zBorder
) {
2515 _mesa_error(ctx
, GL_INVALID_VALUE
,
2516 "glCopyTexSubImage%dD(zoffset)", dimensions
);
2519 if (zoffset
> (GLint
) teximage
->Depth
+ zBorder
) {
2520 _mesa_error(ctx
, GL_INVALID_VALUE
,
2521 "glCopyTexSubImage%dD(zoffset+depth)", dimensions
);
2526 if (_mesa_is_format_compressed(teximage
->TexFormat
)) {
2527 if (compressedteximage_only_format(ctx
, teximage
->InternalFormat
)) {
2528 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2529 "glCopyTexSubImage%dD(no compression for format)", dimensions
);
2532 /* offset must be multiple of 4 */
2533 if ((xoffset
& 3) || (yoffset
& 3)) {
2534 _mesa_error(ctx
, GL_INVALID_VALUE
,
2535 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions
);
2538 /* size must be multiple of 4 */
2539 if ((width
& 3) != 0 && (GLuint
) width
!= teximage
->Width
) {
2540 _mesa_error(ctx
, GL_INVALID_VALUE
,
2541 "glCopyTexSubImage%dD(width)", dimensions
);
2544 if ((height
& 3) != 0 && (GLuint
) height
!= teximage
->Height
) {
2545 _mesa_error(ctx
, GL_INVALID_VALUE
,
2546 "glCopyTexSubImage%dD(height)", dimensions
);
2551 if (teximage
->InternalFormat
== GL_YCBCR_MESA
) {
2552 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glCopyTexSubImage2D");
2556 if (!_mesa_source_buffer_exists(ctx
, teximage
->_BaseFormat
)) {
2557 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2558 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2559 dimensions
, teximage
->_BaseFormat
);
2563 /* From the EXT_texture_integer spec:
2565 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2566 * if the texture internalformat is an integer format and the read color
2567 * buffer is not an integer format, or if the internalformat is not an
2568 * integer format and the read color buffer is an integer format."
2570 if (_mesa_is_color_format(teximage
->InternalFormat
)) {
2571 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2573 if (_mesa_is_format_integer_color(rb
->Format
) !=
2574 _mesa_is_format_integer_color(teximage
->TexFormat
)) {
2575 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2576 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2581 /* if we get here, the parameters are OK */
2586 /** Callback info for walking over FBO hash table */
2589 struct gl_context
*ctx
;
2590 struct gl_texture_object
*texObj
;
2596 * Check render to texture callback. Called from _mesa_HashWalk().
2599 check_rtt_cb(GLuint key
, void *data
, void *userData
)
2601 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2602 const struct cb_info
*info
= (struct cb_info
*) userData
;
2603 struct gl_context
*ctx
= info
->ctx
;
2604 const struct gl_texture_object
*texObj
= info
->texObj
;
2605 const GLuint level
= info
->level
, face
= info
->face
;
2607 /* If this is a user-created FBO */
2608 if (_mesa_is_user_fbo(fb
)) {
2610 /* check if any of the FBO's attachments point to 'texObj' */
2611 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2612 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2613 if (att
->Type
== GL_TEXTURE
&&
2614 att
->Texture
== texObj
&&
2615 att
->TextureLevel
== level
&&
2616 att
->CubeMapFace
== face
) {
2617 ASSERT(_mesa_get_attachment_teximage(att
));
2618 /* Tell driver about the new renderbuffer texture */
2619 ctx
->Driver
.RenderTexture(ctx
, ctx
->DrawBuffer
, att
);
2620 /* Mark fb status as indeterminate to force re-validation */
2629 * When a texture image is specified we have to check if it's bound to
2630 * any framebuffer objects (render to texture) in order to detect changes
2631 * in size or format since that effects FBO completeness.
2632 * Any FBOs rendering into the texture must be re-validated.
2635 _mesa_update_fbo_texture(struct gl_context
*ctx
,
2636 struct gl_texture_object
*texObj
,
2637 GLuint face
, GLuint level
)
2639 /* Only check this texture if it's been marked as RenderToTexture */
2640 if (texObj
->_RenderToTexture
) {
2641 struct cb_info info
;
2643 info
.texObj
= texObj
;
2646 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, check_rtt_cb
, &info
);
2652 * If the texture object's GenerateMipmap flag is set and we've
2653 * changed the texture base level image, regenerate the rest of the
2654 * mipmap levels now.
2657 check_gen_mipmap(struct gl_context
*ctx
, GLenum target
,
2658 struct gl_texture_object
*texObj
, GLint level
)
2660 ASSERT(target
!= GL_TEXTURE_CUBE_MAP
);
2661 if (texObj
->GenerateMipmap
&&
2662 level
== texObj
->BaseLevel
&&
2663 level
< texObj
->MaxLevel
) {
2664 ASSERT(ctx
->Driver
.GenerateMipmap
);
2665 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2670 /** Debug helper: override the user-requested internal format */
2672 override_internal_format(GLenum internalFormat
, GLint width
, GLint height
)
2675 if (internalFormat
== GL_RGBA16F_ARB
||
2676 internalFormat
== GL_RGBA32F_ARB
) {
2677 printf("Convert rgba float tex to int %d x %d\n", width
, height
);
2680 else if (internalFormat
== GL_RGB16F_ARB
||
2681 internalFormat
== GL_RGB32F_ARB
) {
2682 printf("Convert rgb float tex to int %d x %d\n", width
, height
);
2685 else if (internalFormat
== GL_LUMINANCE_ALPHA16F_ARB
||
2686 internalFormat
== GL_LUMINANCE_ALPHA32F_ARB
) {
2687 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2688 return GL_LUMINANCE_ALPHA
;
2690 else if (internalFormat
== GL_LUMINANCE16F_ARB
||
2691 internalFormat
== GL_LUMINANCE32F_ARB
) {
2692 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2693 return GL_LUMINANCE
;
2695 else if (internalFormat
== GL_ALPHA16F_ARB
||
2696 internalFormat
== GL_ALPHA32F_ARB
) {
2697 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2701 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2702 internalFormat = GL_RGBA;
2706 return internalFormat
;
2709 return internalFormat
;
2715 * Choose the actual hardware format for a texture image.
2716 * Try to use the same format as the previous image level when possible.
2717 * Otherwise, ask the driver for the best format.
2718 * It's important to try to choose a consistant format for all levels
2719 * for efficient texture memory layout/allocation. In particular, this
2720 * comes up during automatic mipmap generation.
2723 _mesa_choose_texture_format(struct gl_context
*ctx
,
2724 struct gl_texture_object
*texObj
,
2725 GLenum target
, GLint level
,
2726 GLenum internalFormat
, GLenum format
, GLenum type
)
2730 /* see if we've already chosen a format for the previous level */
2732 struct gl_texture_image
*prevImage
=
2733 _mesa_select_tex_image(ctx
, texObj
, target
, level
- 1);
2734 /* See if the prev level is defined and has an internal format which
2735 * matches the new internal format.
2738 prevImage
->Width
> 0 &&
2739 prevImage
->InternalFormat
== internalFormat
) {
2740 /* use the same format */
2741 ASSERT(prevImage
->TexFormat
!= MESA_FORMAT_NONE
);
2742 return prevImage
->TexFormat
;
2746 /* If the application requested compression to an S3TC format but we don't
2747 * have the DTXn library, force a generic compressed format instead.
2749 if (internalFormat
!= format
&& format
!= GL_NONE
) {
2750 const GLenum before
= internalFormat
;
2752 switch (internalFormat
) {
2753 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
2754 if (!ctx
->Mesa_DXTn
)
2755 internalFormat
= GL_COMPRESSED_RGB
;
2757 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
2758 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
2759 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
2760 if (!ctx
->Mesa_DXTn
)
2761 internalFormat
= GL_COMPRESSED_RGBA
;
2767 if (before
!= internalFormat
) {
2769 "DXT compression requested (%s), "
2770 "but libtxc_dxtn library not installed. Using %s "
2772 _mesa_lookup_enum_by_nr(before
),
2773 _mesa_lookup_enum_by_nr(internalFormat
));
2777 /* choose format from scratch */
2778 f
= ctx
->Driver
.ChooseTextureFormat(ctx
, texObj
->Target
, internalFormat
,
2780 ASSERT(f
!= MESA_FORMAT_NONE
);
2785 * Adjust pixel unpack params and image dimensions to strip off the
2786 * one-pixel texture border.
2788 * Gallium and intel don't support texture borders. They've seldem been used
2789 * and seldom been implemented correctly anyway.
2791 * \param unpackNew returns the new pixel unpack parameters
2794 strip_texture_border(GLenum target
,
2795 GLint
*width
, GLint
*height
, GLint
*depth
,
2796 const struct gl_pixelstore_attrib
*unpack
,
2797 struct gl_pixelstore_attrib
*unpackNew
)
2803 *unpackNew
= *unpack
;
2805 if (unpackNew
->RowLength
== 0)
2806 unpackNew
->RowLength
= *width
;
2808 if (unpackNew
->ImageHeight
== 0)
2809 unpackNew
->ImageHeight
= *height
;
2811 assert(*width
>= 3);
2812 unpackNew
->SkipPixels
++; /* skip the border */
2813 *width
= *width
- 2; /* reduce the width by two border pixels */
2815 /* The min height of a texture with a border is 3 */
2816 if (*height
>= 3 && target
!= GL_TEXTURE_1D_ARRAY
) {
2817 unpackNew
->SkipRows
++; /* skip the border */
2818 *height
= *height
- 2; /* reduce the height by two border pixels */
2821 if (*depth
>= 3 && target
!= GL_TEXTURE_2D_ARRAY
) {
2822 unpackNew
->SkipImages
++; /* skip the border */
2823 *depth
= *depth
- 2; /* reduce the depth by two border pixels */
2829 * Common code to implement all the glTexImage1D/2D/3D functions
2830 * as well as glCompressedTexImage1D/2D/3D.
2831 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls.
2832 * \param format the user's image format (only used if !compressed)
2833 * \param type the user's image type (only used if !compressed)
2834 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls.
2837 teximage(struct gl_context
*ctx
, GLboolean compressed
, GLuint dims
,
2838 GLenum target
, GLint level
, GLint internalFormat
,
2839 GLsizei width
, GLsizei height
, GLsizei depth
,
2840 GLint border
, GLenum format
, GLenum type
,
2841 GLsizei imageSize
, const GLvoid
*pixels
)
2843 const char *func
= compressed
? "glCompressedTexImage" : "glTexImage";
2844 struct gl_pixelstore_attrib unpack_no_border
;
2845 const struct gl_pixelstore_attrib
*unpack
= &ctx
->Unpack
;
2846 struct gl_texture_object
*texObj
;
2847 gl_format texFormat
;
2848 GLboolean dimensionsOK
, sizeOK
;
2850 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2852 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
)) {
2855 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n",
2857 _mesa_lookup_enum_by_nr(target
), level
,
2858 _mesa_lookup_enum_by_nr(internalFormat
),
2859 width
, height
, depth
, border
, pixels
);
2862 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2864 _mesa_lookup_enum_by_nr(target
), level
,
2865 _mesa_lookup_enum_by_nr(internalFormat
),
2866 width
, height
, depth
, border
,
2867 _mesa_lookup_enum_by_nr(format
),
2868 _mesa_lookup_enum_by_nr(type
), pixels
);
2871 internalFormat
= override_internal_format(internalFormat
, width
, height
);
2873 /* target error checking */
2874 if (!legal_teximage_target(ctx
, dims
, target
)) {
2875 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s%uD(target=%s)",
2876 func
, dims
, _mesa_lookup_enum_by_nr(target
));
2880 /* general error checking */
2882 if (compressed_texture_error_check(ctx
, dims
, target
, level
,
2884 width
, height
, depth
,
2889 if (texture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2890 format
, type
, width
, height
, depth
, border
))
2894 /* Here we convert a cpal compressed image into a regular glTexImage2D
2895 * call by decompressing the texture. If we really want to support cpal
2896 * textures in any driver this would have to be changed.
2898 if (ctx
->API
== API_OPENGLES
&& compressed
&& dims
== 2) {
2899 switch (internalFormat
) {
2900 case GL_PALETTE4_RGB8_OES
:
2901 case GL_PALETTE4_RGBA8_OES
:
2902 case GL_PALETTE4_R5_G6_B5_OES
:
2903 case GL_PALETTE4_RGBA4_OES
:
2904 case GL_PALETTE4_RGB5_A1_OES
:
2905 case GL_PALETTE8_RGB8_OES
:
2906 case GL_PALETTE8_RGBA8_OES
:
2907 case GL_PALETTE8_R5_G6_B5_OES
:
2908 case GL_PALETTE8_RGBA4_OES
:
2909 case GL_PALETTE8_RGB5_A1_OES
:
2910 _mesa_cpal_compressed_teximage2d(target
, level
, internalFormat
,
2911 width
, height
, imageSize
, pixels
);
2916 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2919 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
2920 internalFormat
, format
, type
);
2921 assert(texFormat
!= MESA_FORMAT_NONE
);
2923 /* check that width, height, depth are legal for the mipmap level */
2924 dimensionsOK
= _mesa_legal_texture_dimensions(ctx
, target
, level
, width
,
2925 height
, depth
, border
);
2927 /* check that the texture won't take too much memory, etc */
2928 sizeOK
= ctx
->Driver
.TestProxyTexImage(ctx
, _mesa_get_proxy_target(target
),
2930 width
, height
, depth
, border
);
2932 if (_mesa_is_proxy_texture(target
)) {
2933 /* Proxy texture: just clear or set state depending on error checking */
2934 struct gl_texture_image
*texImage
=
2935 get_proxy_tex_image(ctx
, target
, level
);
2938 return; /* GL_OUT_OF_MEMORY already recorded */
2940 if (dimensionsOK
&& sizeOK
) {
2941 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, depth
,
2942 border
, internalFormat
, texFormat
);
2945 clear_teximage_fields(texImage
);
2949 /* non-proxy target */
2950 const GLuint face
= _mesa_tex_target_to_face(target
);
2951 struct gl_texture_image
*texImage
;
2953 if (!dimensionsOK
) {
2954 _mesa_error(ctx
, GL_INVALID_VALUE
,
2955 "glTexImage%uD(invalid width or height or depth)",
2961 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
2962 "glTexImage%uD(image too large)", dims
);
2966 /* Allow a hardware driver to just strip out the border, to provide
2967 * reliable but slightly incorrect hardware rendering instead of
2968 * rarely-tested software fallback rendering.
2970 if (border
&& ctx
->Const
.StripTextureBorder
) {
2971 strip_texture_border(target
, &width
, &height
, &depth
, unpack
,
2974 unpack
= &unpack_no_border
;
2977 if (ctx
->NewState
& _NEW_PIXEL
)
2978 _mesa_update_state(ctx
);
2980 _mesa_lock_texture(ctx
, texObj
);
2982 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
2985 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s%uD", func
, dims
);
2988 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
2990 _mesa_init_teximage_fields(ctx
, texImage
,
2991 width
, height
, depth
,
2992 border
, internalFormat
, texFormat
);
2994 /* Give the texture to the driver. <pixels> may be null. */
2996 ctx
->Driver
.CompressedTexImage(ctx
, dims
, texImage
,
3000 ctx
->Driver
.TexImage(ctx
, dims
, texImage
, format
,
3001 type
, pixels
, unpack
);
3004 check_gen_mipmap(ctx
, target
, texObj
, level
);
3006 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3008 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3011 _mesa_unlock_texture(ctx
, texObj
);
3018 * Called from the API. Note that width includes the border.
3021 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalFormat
,
3022 GLsizei width
, GLint border
, GLenum format
,
3023 GLenum type
, const GLvoid
*pixels
)
3025 GET_CURRENT_CONTEXT(ctx
);
3026 teximage(ctx
, GL_FALSE
, 1, target
, level
, internalFormat
, width
, 1, 1,
3027 border
, format
, type
, 0, pixels
);
3032 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalFormat
,
3033 GLsizei width
, GLsizei height
, GLint border
,
3034 GLenum format
, GLenum type
,
3035 const GLvoid
*pixels
)
3037 GET_CURRENT_CONTEXT(ctx
);
3038 teximage(ctx
, GL_FALSE
, 2, target
, level
, internalFormat
, width
, height
, 1,
3039 border
, format
, type
, 0, pixels
);
3044 * Called by the API or display list executor.
3045 * Note that width and height include the border.
3048 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalFormat
,
3049 GLsizei width
, GLsizei height
, GLsizei depth
,
3050 GLint border
, GLenum format
, GLenum type
,
3051 const GLvoid
*pixels
)
3053 GET_CURRENT_CONTEXT(ctx
);
3054 teximage(ctx
, GL_FALSE
, 3, target
, level
, internalFormat
,
3055 width
, height
, depth
,
3056 border
, format
, type
, 0, pixels
);
3061 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalFormat
,
3062 GLsizei width
, GLsizei height
, GLsizei depth
,
3063 GLint border
, GLenum format
, GLenum type
,
3064 const GLvoid
*pixels
)
3066 _mesa_TexImage3D(target
, level
, (GLint
) internalFormat
, width
, height
,
3067 depth
, border
, format
, type
, pixels
);
3072 _mesa_EGLImageTargetTexture2DOES (GLenum target
, GLeglImageOES image
)
3074 struct gl_texture_object
*texObj
;
3075 struct gl_texture_image
*texImage
;
3077 GET_CURRENT_CONTEXT(ctx
);
3078 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3082 valid_target
= ctx
->Extensions
.OES_EGL_image
;
3084 case GL_TEXTURE_EXTERNAL_OES
:
3085 valid_target
= ctx
->Extensions
.OES_EGL_image_external
;
3088 valid_target
= false;
3092 if (!valid_target
) {
3093 _mesa_error(ctx
, GL_INVALID_ENUM
,
3094 "glEGLImageTargetTexture2D(target=%d)", target
);
3098 if (ctx
->NewState
& _NEW_PIXEL
)
3099 _mesa_update_state(ctx
);
3101 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3102 _mesa_lock_texture(ctx
, texObj
);
3104 if (texObj
->Immutable
) {
3105 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3106 "glEGLImageTargetTexture2D(texture is immutable)");
3107 _mesa_unlock_texture(ctx
, texObj
);
3111 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
3113 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glEGLImageTargetTexture2D");
3115 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3117 ctx
->Driver
.EGLImageTargetTexture2D(ctx
, target
,
3118 texObj
, texImage
, image
);
3120 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3122 _mesa_unlock_texture(ctx
, texObj
);
3129 * Implement all the glTexSubImage1/2/3D() functions.
3132 texsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3133 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3134 GLsizei width
, GLsizei height
, GLsizei depth
,
3135 GLenum format
, GLenum type
, const GLvoid
*pixels
)
3137 struct gl_texture_object
*texObj
;
3138 struct gl_texture_image
*texImage
;
3140 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3142 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3143 _mesa_debug(ctx
, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
3145 _mesa_lookup_enum_by_nr(target
), level
,
3146 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3147 _mesa_lookup_enum_by_nr(format
),
3148 _mesa_lookup_enum_by_nr(type
), pixels
);
3150 /* check target (proxies not allowed) */
3151 if (!legal_texsubimage_target(ctx
, dims
, target
)) {
3152 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
3153 dims
, _mesa_lookup_enum_by_nr(target
));
3157 if (ctx
->NewState
& _NEW_PIXEL
)
3158 _mesa_update_state(ctx
);
3160 if (subtexture_error_check(ctx
, dims
, target
, level
, xoffset
, yoffset
, zoffset
,
3161 width
, height
, depth
, format
, type
)) {
3162 return; /* error was detected */
3165 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3167 _mesa_lock_texture(ctx
, texObj
);
3169 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3171 if (subtexture_error_check2(ctx
, dims
, target
, level
,
3172 xoffset
, yoffset
, zoffset
,
3173 width
, height
, depth
,
3174 format
, type
, texImage
)) {
3175 /* error was recorded */
3177 else if (width
> 0 && height
> 0 && depth
> 0) {
3178 /* If we have a border, offset=-1 is legal. Bias by border width. */
3181 if (target
!= GL_TEXTURE_2D_ARRAY
)
3182 zoffset
+= texImage
->Border
;
3185 if (target
!= GL_TEXTURE_1D_ARRAY
)
3186 yoffset
+= texImage
->Border
;
3189 xoffset
+= texImage
->Border
;
3192 ctx
->Driver
.TexSubImage(ctx
, dims
, texImage
,
3193 xoffset
, yoffset
, zoffset
,
3194 width
, height
, depth
,
3195 format
, type
, pixels
, &ctx
->Unpack
);
3197 check_gen_mipmap(ctx
, target
, texObj
, level
);
3199 ctx
->NewState
|= _NEW_TEXTURE
;
3202 _mesa_unlock_texture(ctx
, texObj
);
3207 _mesa_TexSubImage1D( GLenum target
, GLint level
,
3208 GLint xoffset
, GLsizei width
,
3209 GLenum format
, GLenum type
,
3210 const GLvoid
*pixels
)
3212 GET_CURRENT_CONTEXT(ctx
);
3213 texsubimage(ctx
, 1, target
, level
,
3216 format
, type
, pixels
);
3221 _mesa_TexSubImage2D( GLenum target
, GLint level
,
3222 GLint xoffset
, GLint yoffset
,
3223 GLsizei width
, GLsizei height
,
3224 GLenum format
, GLenum type
,
3225 const GLvoid
*pixels
)
3227 GET_CURRENT_CONTEXT(ctx
);
3228 texsubimage(ctx
, 2, target
, level
,
3229 xoffset
, yoffset
, 0,
3231 format
, type
, pixels
);
3237 _mesa_TexSubImage3D( GLenum target
, GLint level
,
3238 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3239 GLsizei width
, GLsizei height
, GLsizei depth
,
3240 GLenum format
, GLenum type
,
3241 const GLvoid
*pixels
)
3243 GET_CURRENT_CONTEXT(ctx
);
3244 texsubimage(ctx
, 3, target
, level
,
3245 xoffset
, yoffset
, zoffset
,
3246 width
, height
, depth
,
3247 format
, type
, pixels
);
3253 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3254 * from. This depends on whether the texture contains color or depth values.
3256 static struct gl_renderbuffer
*
3257 get_copy_tex_image_source(struct gl_context
*ctx
, gl_format texFormat
)
3259 if (_mesa_get_format_bits(texFormat
, GL_DEPTH_BITS
) > 0) {
3260 /* reading from depth/stencil buffer */
3261 return ctx
->ReadBuffer
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
3264 /* copying from color buffer */
3265 return ctx
->ReadBuffer
->_ColorReadBuffer
;
3272 * Implement the glCopyTexImage1/2D() functions.
3275 copyteximage(struct gl_context
*ctx
, GLuint dims
,
3276 GLenum target
, GLint level
, GLenum internalFormat
,
3277 GLint x
, GLint y
, GLsizei width
, GLsizei height
, GLint border
)
3279 struct gl_texture_object
*texObj
;
3280 struct gl_texture_image
*texImage
;
3281 const GLuint face
= _mesa_tex_target_to_face(target
);
3282 gl_format texFormat
;
3284 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3286 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3287 _mesa_debug(ctx
, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3289 _mesa_lookup_enum_by_nr(target
), level
,
3290 _mesa_lookup_enum_by_nr(internalFormat
),
3291 x
, y
, width
, height
, border
);
3293 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3294 _mesa_update_state(ctx
);
3296 if (copytexture_error_check(ctx
, dims
, target
, level
, internalFormat
,
3297 width
, height
, border
))
3300 if (!_mesa_legal_texture_dimensions(ctx
, target
, level
, width
, height
,
3302 _mesa_error(ctx
, GL_INVALID_VALUE
,
3303 "glCopyTexImage%uD(invalid width or height)", dims
);
3307 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3310 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3311 internalFormat
, GL_NONE
, GL_NONE
);
3312 assert(texFormat
!= MESA_FORMAT_NONE
);
3314 if (!ctx
->Driver
.TestProxyTexImage(ctx
, _mesa_get_proxy_target(target
),
3316 width
, height
, 1, border
)) {
3317 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3318 "glCopyTexImage%uD(image too large)", dims
);
3322 if (border
&& ctx
->Const
.StripTextureBorder
) {
3324 width
-= border
* 2;
3327 height
-= border
* 2;
3332 _mesa_lock_texture(ctx
, texObj
);
3334 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3337 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
3340 GLint srcX
= x
, srcY
= y
, dstX
= 0, dstY
= 0, dstZ
= 0;
3342 /* Free old texture image */
3343 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3345 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, 1,
3346 border
, internalFormat
, texFormat
);
3348 /* Allocate texture memory (no pixel data yet) */
3349 ctx
->Driver
.TexImage(ctx
, dims
, texImage
,
3351 NULL
, &ctx
->Unpack
);
3353 if (_mesa_clip_copytexsubimage(ctx
, &dstX
, &dstY
, &srcX
, &srcY
,
3355 struct gl_renderbuffer
*srcRb
=
3356 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3358 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
, dstX
, dstY
, dstZ
,
3359 srcRb
, srcX
, srcY
, width
, height
);
3362 check_gen_mipmap(ctx
, target
, texObj
, level
);
3364 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3366 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3369 _mesa_unlock_texture(ctx
, texObj
);
3375 _mesa_CopyTexImage1D( GLenum target
, GLint level
,
3376 GLenum internalFormat
,
3378 GLsizei width
, GLint border
)
3380 GET_CURRENT_CONTEXT(ctx
);
3381 copyteximage(ctx
, 1, target
, level
, internalFormat
, x
, y
, width
, 1, border
);
3387 _mesa_CopyTexImage2D( GLenum target
, GLint level
, GLenum internalFormat
,
3388 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
3391 GET_CURRENT_CONTEXT(ctx
);
3392 copyteximage(ctx
, 2, target
, level
, internalFormat
,
3393 x
, y
, width
, height
, border
);
3399 * Implementation for glCopyTexSubImage1/2/3D() functions.
3402 copytexsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3403 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3404 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3406 struct gl_texture_object
*texObj
;
3407 struct gl_texture_image
*texImage
;
3409 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3411 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3412 _mesa_debug(ctx
, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
3414 _mesa_lookup_enum_by_nr(target
),
3415 level
, xoffset
, yoffset
, zoffset
, x
, y
, width
, height
);
3417 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3418 _mesa_update_state(ctx
);
3420 if (copytexsubimage_error_check1(ctx
, dims
, target
, level
))
3423 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3425 _mesa_lock_texture(ctx
, texObj
);
3427 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3429 if (copytexsubimage_error_check2(ctx
, dims
, target
, level
, xoffset
, yoffset
,
3430 zoffset
, width
, height
, texImage
)) {
3431 /* error was recored */
3434 /* If we have a border, offset=-1 is legal. Bias by border width. */
3437 if (target
!= GL_TEXTURE_2D_ARRAY
)
3438 zoffset
+= texImage
->Border
;
3441 if (target
!= GL_TEXTURE_1D_ARRAY
)
3442 yoffset
+= texImage
->Border
;
3445 xoffset
+= texImage
->Border
;
3448 if (_mesa_clip_copytexsubimage(ctx
, &xoffset
, &yoffset
, &x
, &y
,
3450 struct gl_renderbuffer
*srcRb
=
3451 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3453 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
,
3454 xoffset
, yoffset
, zoffset
,
3455 srcRb
, x
, y
, width
, height
);
3457 check_gen_mipmap(ctx
, target
, texObj
, level
);
3459 ctx
->NewState
|= _NEW_TEXTURE
;
3463 _mesa_unlock_texture(ctx
, texObj
);
3468 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
,
3469 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
3471 GET_CURRENT_CONTEXT(ctx
);
3472 copytexsubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, x
, y
, width
, 1);
3478 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
3479 GLint xoffset
, GLint yoffset
,
3480 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3482 GET_CURRENT_CONTEXT(ctx
);
3483 copytexsubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0, x
, y
,
3490 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
3491 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3492 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3494 GET_CURRENT_CONTEXT(ctx
);
3495 copytexsubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
3496 x
, y
, width
, height
);
3502 /**********************************************************************/
3503 /****** Compressed Textures ******/
3504 /**********************************************************************/
3508 * Error checking for glCompressedTexSubImage[123]D().
3509 * \warning There are some bad assumptions here about the size of compressed
3510 * texture tiles (multiple of 4) used to test the validity of the
3511 * offset and size parameters.
3512 * \return error code or GL_NO_ERROR.
3515 compressed_subtexture_error_check(struct gl_context
*ctx
, GLint dimensions
,
3516 GLenum target
, GLint level
,
3517 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3518 GLsizei width
, GLsizei height
, GLsizei depth
,
3519 GLenum format
, GLsizei imageSize
)
3521 GLint expectedSize
, maxLevels
= 0, maxTextureSize
;
3525 if (dimensions
== 1) {
3526 /* 1D compressed textures not allowed */
3527 return GL_INVALID_ENUM
;
3529 else if (dimensions
== 2) {
3530 if (target
== GL_PROXY_TEXTURE_2D
) {
3531 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3533 else if (target
== GL_TEXTURE_2D
) {
3534 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3536 else if (target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
) {
3537 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3538 return GL_INVALID_ENUM
; /*target*/
3539 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3541 else if (_mesa_is_cube_face(target
)) {
3542 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3543 return GL_INVALID_ENUM
; /*target*/
3544 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3547 return GL_INVALID_ENUM
; /*target*/
3550 else if (dimensions
== 3) {
3551 /* 3D compressed textures not allowed */
3552 return GL_INVALID_ENUM
;
3555 maxTextureSize
= 1 << (maxLevels
- 1);
3557 /* this will catch any invalid compressed format token */
3558 if (!_mesa_is_compressed_format(ctx
, format
))
3559 return GL_INVALID_ENUM
;
3561 if (width
< 1 || width
> maxTextureSize
)
3562 return GL_INVALID_VALUE
;
3564 if ((height
< 1 || height
> maxTextureSize
)
3566 return GL_INVALID_VALUE
;
3568 if (level
< 0 || level
>= maxLevels
)
3569 return GL_INVALID_VALUE
;
3572 * do checks which depend on compression block size
3574 get_compressed_block_size(format
, &bw
, &bh
);
3576 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0))
3577 return GL_INVALID_OPERATION
;
3579 if ((width
% bw
!= 0) && width
!= 2 && width
!= 1)
3580 return GL_INVALID_OPERATION
;
3582 if ((height
% bh
!= 0) && height
!= 2 && height
!= 1)
3583 return GL_INVALID_OPERATION
;
3585 expectedSize
= compressed_tex_size(width
, height
, depth
, format
);
3586 if (expectedSize
!= imageSize
)
3587 return GL_INVALID_VALUE
;
3594 * Do second part of glCompressedTexSubImage error checking.
3595 * \return GL_TRUE if error found, GL_FALSE otherwise.
3598 compressed_subtexture_error_check2(struct gl_context
*ctx
, GLuint dims
,
3599 GLsizei width
, GLsizei height
,
3600 GLsizei depth
, GLenum format
,
3601 struct gl_texture_image
*texImage
)
3604 if ((GLint
) format
!= texImage
->InternalFormat
) {
3605 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3606 "glCompressedTexSubImage%uD(format=0x%x)", dims
, format
);
3610 if (compressedteximage_only_format(ctx
, format
)) {
3611 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3612 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)"
3617 if (((width
== 1 || width
== 2) &&
3618 width
!= (GLsizei
) texImage
->Width
) ||
3619 (width
> (GLsizei
) texImage
->Width
)) {
3620 _mesa_error(ctx
, GL_INVALID_VALUE
,
3621 "glCompressedTexSubImage%uD(width=%d)", dims
, width
);
3626 if (((height
== 1 || height
== 2) &&
3627 height
!= (GLsizei
) texImage
->Height
) ||
3628 (height
> (GLsizei
) texImage
->Height
)) {
3629 _mesa_error(ctx
, GL_INVALID_VALUE
,
3630 "glCompressedTexSubImage%uD(height=%d)", dims
, height
);
3636 if (((depth
== 1 || depth
== 2) &&
3637 depth
!= (GLsizei
) texImage
->Depth
) ||
3638 (depth
> (GLsizei
) texImage
->Depth
)) {
3639 _mesa_error(ctx
, GL_INVALID_VALUE
,
3640 "glCompressedTexSubImage%uD(depth=%d)", dims
, depth
);
3650 _mesa_CompressedTexImage1DARB(GLenum target
, GLint level
,
3651 GLenum internalFormat
, GLsizei width
,
3652 GLint border
, GLsizei imageSize
,
3655 GET_CURRENT_CONTEXT(ctx
);
3656 teximage(ctx
, GL_TRUE
, 1, target
, level
, internalFormat
,
3657 width
, 1, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3662 _mesa_CompressedTexImage2DARB(GLenum target
, GLint level
,
3663 GLenum internalFormat
, GLsizei width
,
3664 GLsizei height
, GLint border
, GLsizei imageSize
,
3667 GET_CURRENT_CONTEXT(ctx
);
3668 teximage(ctx
, GL_TRUE
, 2, target
, level
, internalFormat
,
3669 width
, height
, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3674 _mesa_CompressedTexImage3DARB(GLenum target
, GLint level
,
3675 GLenum internalFormat
, GLsizei width
,
3676 GLsizei height
, GLsizei depth
, GLint border
,
3677 GLsizei imageSize
, const GLvoid
*data
)
3679 GET_CURRENT_CONTEXT(ctx
);
3680 teximage(ctx
, GL_TRUE
, 3, target
, level
, internalFormat
,
3681 width
, height
, depth
, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3686 * Common helper for glCompressedTexSubImage1/2/3D().
3689 compressed_tex_sub_image(GLuint dims
, GLenum target
, GLint level
,
3690 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3691 GLsizei width
, GLsizei height
, GLsizei depth
,
3692 GLenum format
, GLsizei imageSize
, const GLvoid
*data
)
3694 struct gl_texture_object
*texObj
;
3695 struct gl_texture_image
*texImage
;
3697 GET_CURRENT_CONTEXT(ctx
);
3698 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3700 error
= compressed_subtexture_error_check(ctx
, dims
, target
, level
,
3701 xoffset
, 0, 0, /* pos */
3702 width
, height
, depth
, /* size */
3705 _mesa_error(ctx
, error
, "glCompressedTexSubImage%uD", dims
);
3709 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3711 _mesa_lock_texture(ctx
, texObj
);
3713 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3716 if (compressed_subtexture_error_check2(ctx
, dims
, width
, height
, depth
,
3717 format
, texImage
)) {
3718 /* error was recorded */
3720 else if (width
> 0 && height
> 0 && depth
> 0) {
3721 ctx
->Driver
.CompressedTexSubImage(ctx
, dims
, texImage
,
3722 xoffset
, yoffset
, zoffset
,
3723 width
, height
, depth
,
3724 format
, imageSize
, data
);
3726 check_gen_mipmap(ctx
, target
, texObj
, level
);
3728 ctx
->NewState
|= _NEW_TEXTURE
;
3731 _mesa_unlock_texture(ctx
, texObj
);
3736 _mesa_CompressedTexSubImage1DARB(GLenum target
, GLint level
, GLint xoffset
,
3737 GLsizei width
, GLenum format
,
3738 GLsizei imageSize
, const GLvoid
*data
)
3740 compressed_tex_sub_image(1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
3741 format
, imageSize
, data
);
3746 _mesa_CompressedTexSubImage2DARB(GLenum target
, GLint level
, GLint xoffset
,
3747 GLint yoffset
, GLsizei width
, GLsizei height
,
3748 GLenum format
, GLsizei imageSize
,
3751 compressed_tex_sub_image(2, target
, level
, xoffset
, yoffset
, 0,
3752 width
, height
, 1, format
, imageSize
, data
);
3757 _mesa_CompressedTexSubImage3DARB(GLenum target
, GLint level
, GLint xoffset
,
3758 GLint yoffset
, GLint zoffset
, GLsizei width
,
3759 GLsizei height
, GLsizei depth
, GLenum format
,
3760 GLsizei imageSize
, const GLvoid
*data
)
3762 compressed_tex_sub_image(3, target
, level
, xoffset
, yoffset
, zoffset
,
3763 width
, height
, depth
, format
, imageSize
, data
);
3767 get_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3769 switch (internalFormat
) {
3771 return MESA_FORMAT_A8
;
3773 return MESA_FORMAT_A16
;
3774 case GL_ALPHA16F_ARB
:
3775 return MESA_FORMAT_ALPHA_FLOAT16
;
3776 case GL_ALPHA32F_ARB
:
3777 return MESA_FORMAT_ALPHA_FLOAT32
;
3778 case GL_ALPHA8I_EXT
:
3779 return MESA_FORMAT_ALPHA_INT8
;
3780 case GL_ALPHA16I_EXT
:
3781 return MESA_FORMAT_ALPHA_INT16
;
3782 case GL_ALPHA32I_EXT
:
3783 return MESA_FORMAT_ALPHA_INT32
;
3784 case GL_ALPHA8UI_EXT
:
3785 return MESA_FORMAT_ALPHA_UINT8
;
3786 case GL_ALPHA16UI_EXT
:
3787 return MESA_FORMAT_ALPHA_UINT16
;
3788 case GL_ALPHA32UI_EXT
:
3789 return MESA_FORMAT_ALPHA_UINT32
;
3791 return MESA_FORMAT_L8
;
3792 case GL_LUMINANCE16
:
3793 return MESA_FORMAT_L16
;
3794 case GL_LUMINANCE16F_ARB
:
3795 return MESA_FORMAT_LUMINANCE_FLOAT16
;
3796 case GL_LUMINANCE32F_ARB
:
3797 return MESA_FORMAT_LUMINANCE_FLOAT32
;
3798 case GL_LUMINANCE8I_EXT
:
3799 return MESA_FORMAT_LUMINANCE_INT8
;
3800 case GL_LUMINANCE16I_EXT
:
3801 return MESA_FORMAT_LUMINANCE_INT16
;
3802 case GL_LUMINANCE32I_EXT
:
3803 return MESA_FORMAT_LUMINANCE_INT32
;
3804 case GL_LUMINANCE8UI_EXT
:
3805 return MESA_FORMAT_LUMINANCE_UINT8
;
3806 case GL_LUMINANCE16UI_EXT
:
3807 return MESA_FORMAT_LUMINANCE_UINT16
;
3808 case GL_LUMINANCE32UI_EXT
:
3809 return MESA_FORMAT_LUMINANCE_UINT32
;
3810 case GL_LUMINANCE8_ALPHA8
:
3811 return MESA_FORMAT_AL88
;
3812 case GL_LUMINANCE16_ALPHA16
:
3813 return MESA_FORMAT_AL1616
;
3814 case GL_LUMINANCE_ALPHA16F_ARB
:
3815 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
;
3816 case GL_LUMINANCE_ALPHA32F_ARB
:
3817 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
;
3818 case GL_LUMINANCE_ALPHA8I_EXT
:
3819 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3820 case GL_LUMINANCE_ALPHA16I_EXT
:
3821 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3822 case GL_LUMINANCE_ALPHA32I_EXT
:
3823 return MESA_FORMAT_LUMINANCE_ALPHA_INT16
;
3824 case GL_LUMINANCE_ALPHA8UI_EXT
:
3825 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8
;
3826 case GL_LUMINANCE_ALPHA16UI_EXT
:
3827 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16
;
3828 case GL_LUMINANCE_ALPHA32UI_EXT
:
3829 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32
;
3831 return MESA_FORMAT_I8
;
3832 case GL_INTENSITY16
:
3833 return MESA_FORMAT_I16
;
3834 case GL_INTENSITY16F_ARB
:
3835 return MESA_FORMAT_INTENSITY_FLOAT16
;
3836 case GL_INTENSITY32F_ARB
:
3837 return MESA_FORMAT_INTENSITY_FLOAT32
;
3838 case GL_INTENSITY8I_EXT
:
3839 return MESA_FORMAT_INTENSITY_INT8
;
3840 case GL_INTENSITY16I_EXT
:
3841 return MESA_FORMAT_INTENSITY_INT16
;
3842 case GL_INTENSITY32I_EXT
:
3843 return MESA_FORMAT_INTENSITY_INT32
;
3844 case GL_INTENSITY8UI_EXT
:
3845 return MESA_FORMAT_INTENSITY_UINT8
;
3846 case GL_INTENSITY16UI_EXT
:
3847 return MESA_FORMAT_INTENSITY_UINT16
;
3848 case GL_INTENSITY32UI_EXT
:
3849 return MESA_FORMAT_INTENSITY_UINT32
;
3851 return MESA_FORMAT_RGBA8888_REV
;
3853 return MESA_FORMAT_RGBA_16
;
3854 case GL_RGBA16F_ARB
:
3855 return MESA_FORMAT_RGBA_FLOAT16
;
3856 case GL_RGBA32F_ARB
:
3857 return MESA_FORMAT_RGBA_FLOAT32
;
3859 return MESA_FORMAT_RGBA_INT8
;
3860 case GL_RGBA16I_EXT
:
3861 return MESA_FORMAT_RGBA_INT16
;
3862 case GL_RGBA32I_EXT
:
3863 return MESA_FORMAT_RGBA_INT32
;
3864 case GL_RGBA8UI_EXT
:
3865 return MESA_FORMAT_RGBA_UINT8
;
3866 case GL_RGBA16UI_EXT
:
3867 return MESA_FORMAT_RGBA_UINT16
;
3868 case GL_RGBA32UI_EXT
:
3869 return MESA_FORMAT_RGBA_UINT32
;
3872 return MESA_FORMAT_GR88
;
3874 return MESA_FORMAT_RG1616
;
3876 return MESA_FORMAT_RG_FLOAT16
;
3878 return MESA_FORMAT_RG_FLOAT32
;
3880 return MESA_FORMAT_RG_INT8
;
3882 return MESA_FORMAT_RG_INT16
;
3884 return MESA_FORMAT_RG_INT32
;
3886 return MESA_FORMAT_RG_UINT8
;
3888 return MESA_FORMAT_RG_UINT16
;
3890 return MESA_FORMAT_RG_UINT32
;
3893 return MESA_FORMAT_R8
;
3895 return MESA_FORMAT_R16
;
3897 return MESA_FORMAT_R_FLOAT16
;
3899 return MESA_FORMAT_R_FLOAT32
;
3901 return MESA_FORMAT_R_INT8
;
3903 return MESA_FORMAT_R_INT16
;
3905 return MESA_FORMAT_R_INT32
;
3907 return MESA_FORMAT_R_UINT8
;
3909 return MESA_FORMAT_R_UINT16
;
3911 return MESA_FORMAT_R_UINT32
;
3914 return MESA_FORMAT_NONE
;
3919 validate_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3921 gl_format format
= get_texbuffer_format(ctx
, internalFormat
);
3924 if (format
== MESA_FORMAT_NONE
)
3925 return MESA_FORMAT_NONE
;
3927 datatype
= _mesa_get_format_datatype(format
);
3928 if (datatype
== GL_FLOAT
&& !ctx
->Extensions
.ARB_texture_float
)
3929 return MESA_FORMAT_NONE
;
3931 if (datatype
== GL_HALF_FLOAT
&& !ctx
->Extensions
.ARB_half_float_pixel
)
3932 return MESA_FORMAT_NONE
;
3934 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make
3935 * any mention of R/RG formats, but they appear in the GL 3.1 core
3938 if (ctx
->Version
<= 30) {
3939 GLenum base_format
= _mesa_get_format_base_format(format
);
3941 if (base_format
== GL_R
|| base_format
== GL_RG
)
3942 return MESA_FORMAT_NONE
;
3948 /** GL_ARB_texture_buffer_object */
3950 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
)
3952 struct gl_texture_object
*texObj
;
3953 struct gl_buffer_object
*bufObj
;
3956 GET_CURRENT_CONTEXT(ctx
);
3957 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3959 if (!(ctx
->Extensions
.ARB_texture_buffer_object
3960 && _mesa_is_desktop_gl(ctx
))) {
3961 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer");
3965 if (target
!= GL_TEXTURE_BUFFER_ARB
) {
3966 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(target)");
3970 format
= validate_texbuffer_format(ctx
, internalFormat
);
3971 if (format
== MESA_FORMAT_NONE
) {
3972 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(internalFormat 0x%x)",
3977 bufObj
= _mesa_lookup_bufferobj(ctx
, buffer
);
3978 if (buffer
&& !bufObj
) {
3979 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer(buffer %u)", buffer
);
3983 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3985 _mesa_lock_texture(ctx
, texObj
);
3987 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, bufObj
);
3988 texObj
->BufferObjectFormat
= internalFormat
;
3989 texObj
->_BufferObjectFormat
= format
;
3991 _mesa_unlock_texture(ctx
, texObj
);