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 FEATURE_EXT_texture_sRGB
315 if (ctx
->Extensions
.EXT_texture_sRGB
) {
316 switch (internalFormat
) {
319 case GL_COMPRESSED_SRGB_EXT
:
320 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
322 case GL_SRGB_ALPHA_EXT
:
323 case GL_SRGB8_ALPHA8_EXT
:
324 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
325 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
326 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
327 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
329 case GL_SLUMINANCE_ALPHA_EXT
:
330 case GL_SLUMINANCE8_ALPHA8_EXT
:
331 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
332 return GL_LUMINANCE_ALPHA
;
333 case GL_SLUMINANCE_EXT
:
334 case GL_SLUMINANCE8_EXT
:
335 case GL_COMPRESSED_SLUMINANCE_EXT
:
341 #endif /* FEATURE_EXT_texture_sRGB */
343 if (ctx
->Version
>= 30 ||
344 ctx
->Extensions
.EXT_texture_integer
) {
345 switch (internalFormat
) {
347 case GL_RGBA16UI_EXT
:
348 case GL_RGBA32UI_EXT
:
364 if (ctx
->Extensions
.EXT_texture_integer
) {
365 switch (internalFormat
) {
366 case GL_ALPHA8UI_EXT
:
367 case GL_ALPHA16UI_EXT
:
368 case GL_ALPHA32UI_EXT
:
370 case GL_ALPHA16I_EXT
:
371 case GL_ALPHA32I_EXT
:
373 case GL_INTENSITY8UI_EXT
:
374 case GL_INTENSITY16UI_EXT
:
375 case GL_INTENSITY32UI_EXT
:
376 case GL_INTENSITY8I_EXT
:
377 case GL_INTENSITY16I_EXT
:
378 case GL_INTENSITY32I_EXT
:
380 case GL_LUMINANCE8UI_EXT
:
381 case GL_LUMINANCE16UI_EXT
:
382 case GL_LUMINANCE32UI_EXT
:
383 case GL_LUMINANCE8I_EXT
:
384 case GL_LUMINANCE16I_EXT
:
385 case GL_LUMINANCE32I_EXT
:
387 case GL_LUMINANCE_ALPHA8UI_EXT
:
388 case GL_LUMINANCE_ALPHA16UI_EXT
:
389 case GL_LUMINANCE_ALPHA32UI_EXT
:
390 case GL_LUMINANCE_ALPHA8I_EXT
:
391 case GL_LUMINANCE_ALPHA16I_EXT
:
392 case GL_LUMINANCE_ALPHA32I_EXT
:
393 return GL_LUMINANCE_ALPHA
;
399 if (ctx
->Extensions
.ARB_texture_rg
) {
400 switch (internalFormat
) {
402 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
404 if (!ctx
->Extensions
.ARB_half_float_pixel
)
408 if (!ctx
->Extensions
.ARB_texture_float
)
417 if (ctx
->Version
< 30 && !ctx
->Extensions
.EXT_texture_integer
)
423 case GL_COMPRESSED_RED
:
427 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
429 if (!ctx
->Extensions
.ARB_half_float_pixel
)
433 if (!ctx
->Extensions
.ARB_texture_float
)
442 if (ctx
->Version
< 30 && !ctx
->Extensions
.EXT_texture_integer
)
448 case GL_COMPRESSED_RG
:
455 if (ctx
->Extensions
.EXT_texture_shared_exponent
) {
456 switch (internalFormat
) {
464 if (ctx
->Extensions
.EXT_packed_float
) {
465 switch (internalFormat
) {
466 case GL_R11F_G11F_B10F_EXT
:
473 if (ctx
->Extensions
.ARB_depth_buffer_float
) {
474 switch (internalFormat
) {
475 case GL_DEPTH_COMPONENT32F
:
476 return GL_DEPTH_COMPONENT
;
477 case GL_DEPTH32F_STENCIL8
:
478 return GL_DEPTH_STENCIL
;
484 if (ctx
->Extensions
.ARB_texture_compression_rgtc
) {
485 switch (internalFormat
) {
486 case GL_COMPRESSED_RED_RGTC1
:
487 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
489 case GL_COMPRESSED_RG_RGTC2
:
490 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
497 if (ctx
->Extensions
.EXT_texture_compression_latc
) {
498 switch (internalFormat
) {
499 case GL_COMPRESSED_LUMINANCE_LATC1_EXT
:
500 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT
:
502 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
:
503 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT
:
504 return GL_LUMINANCE_ALPHA
;
510 if (ctx
->Extensions
.ATI_texture_compression_3dc
) {
511 switch (internalFormat
) {
512 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
513 return GL_LUMINANCE_ALPHA
;
519 if (ctx
->Extensions
.OES_compressed_ETC1_RGB8_texture
) {
520 switch (internalFormat
) {
521 case GL_ETC1_RGB8_OES
:
528 if (ctx
->API
== API_OPENGLES
) {
529 switch (internalFormat
) {
530 case GL_PALETTE4_RGB8_OES
:
531 case GL_PALETTE4_R5_G6_B5_OES
:
532 case GL_PALETTE8_RGB8_OES
:
533 case GL_PALETTE8_R5_G6_B5_OES
:
535 case GL_PALETTE4_RGBA8_OES
:
536 case GL_PALETTE8_RGB5_A1_OES
:
537 case GL_PALETTE4_RGBA4_OES
:
538 case GL_PALETTE4_RGB5_A1_OES
:
539 case GL_PALETTE8_RGBA8_OES
:
540 case GL_PALETTE8_RGBA4_OES
:
547 return -1; /* error */
552 * For cube map faces, return a face index in [0,5].
553 * For other targets return 0;
556 _mesa_tex_target_to_face(GLenum target
)
558 if (_mesa_is_cube_face(target
))
559 return (GLuint
) target
- (GLuint
) GL_TEXTURE_CUBE_MAP_POSITIVE_X
;
567 * Install gl_texture_image in a gl_texture_object according to the target
568 * and level parameters.
570 * \param tObj texture object.
571 * \param target texture target.
572 * \param level image level.
573 * \param texImage texture image.
576 set_tex_image(struct gl_texture_object
*tObj
,
577 GLenum target
, GLint level
,
578 struct gl_texture_image
*texImage
)
580 const GLuint face
= _mesa_tex_target_to_face(target
);
584 if (target
== GL_TEXTURE_RECTANGLE_NV
|| target
== GL_TEXTURE_EXTERNAL_OES
)
587 tObj
->Image
[face
][level
] = texImage
;
589 /* Set the 'back' pointer */
590 texImage
->TexObject
= tObj
;
591 texImage
->Level
= level
;
592 texImage
->Face
= face
;
597 * Allocate a texture image structure.
599 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
602 * \return a pointer to gl_texture_image struct with all fields initialized to
605 struct gl_texture_image
*
606 _mesa_new_texture_image( struct gl_context
*ctx
)
609 return CALLOC_STRUCT(gl_texture_image
);
614 * Free a gl_texture_image and associated data.
615 * This function is a fallback called via ctx->Driver.DeleteTextureImage().
617 * \param texImage texture image.
619 * Free the texture image structure and the associated image data.
622 _mesa_delete_texture_image(struct gl_context
*ctx
,
623 struct gl_texture_image
*texImage
)
625 /* Free texImage->Data and/or any other driver-specific texture
628 ASSERT(ctx
->Driver
.FreeTextureImageBuffer
);
629 ctx
->Driver
.FreeTextureImageBuffer( ctx
, texImage
);
635 * Test if a target is a proxy target.
637 * \param target texture target.
639 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
642 _mesa_is_proxy_texture(GLenum target
)
645 * NUM_TEXTURE_TARGETS should match number of terms below, except there's no
646 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
648 assert(NUM_TEXTURE_TARGETS
== 7 + 2);
650 return (target
== GL_PROXY_TEXTURE_1D
||
651 target
== GL_PROXY_TEXTURE_2D
||
652 target
== GL_PROXY_TEXTURE_3D
||
653 target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
654 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
||
655 target
== GL_PROXY_TEXTURE_1D_ARRAY_EXT
||
656 target
== GL_PROXY_TEXTURE_2D_ARRAY_EXT
);
661 * Return the proxy target which corresponds to the given texture target
664 get_proxy_target(GLenum target
)
668 case GL_PROXY_TEXTURE_1D
:
669 return GL_PROXY_TEXTURE_1D
;
671 case GL_PROXY_TEXTURE_2D
:
672 return GL_PROXY_TEXTURE_2D
;
674 case GL_PROXY_TEXTURE_3D
:
675 return GL_PROXY_TEXTURE_3D
;
676 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
677 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
678 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
679 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
680 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
681 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
682 case GL_TEXTURE_CUBE_MAP_ARB
:
683 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
684 return GL_PROXY_TEXTURE_CUBE_MAP_ARB
;
685 case GL_TEXTURE_RECTANGLE_NV
:
686 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
687 return GL_PROXY_TEXTURE_RECTANGLE_NV
;
688 case GL_TEXTURE_1D_ARRAY_EXT
:
689 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
690 return GL_PROXY_TEXTURE_1D_ARRAY_EXT
;
691 case GL_TEXTURE_2D_ARRAY_EXT
:
692 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
693 return GL_PROXY_TEXTURE_2D_ARRAY_EXT
;
695 _mesa_problem(NULL
, "unexpected target in get_proxy_target()");
702 * Get the texture object that corresponds to the target of the given
703 * texture unit. The target should have already been checked for validity.
705 * \param ctx GL context.
706 * \param texUnit texture unit.
707 * \param target texture target.
709 * \return pointer to the texture object on success, or NULL on failure.
711 struct gl_texture_object
*
712 _mesa_select_tex_object(struct gl_context
*ctx
,
713 const struct gl_texture_unit
*texUnit
,
716 const GLboolean arrayTex
= (ctx
->Extensions
.MESA_texture_array
||
717 ctx
->Extensions
.EXT_texture_array
);
721 return texUnit
->CurrentTex
[TEXTURE_1D_INDEX
];
722 case GL_PROXY_TEXTURE_1D
:
723 return ctx
->Texture
.ProxyTex
[TEXTURE_1D_INDEX
];
725 return texUnit
->CurrentTex
[TEXTURE_2D_INDEX
];
726 case GL_PROXY_TEXTURE_2D
:
727 return ctx
->Texture
.ProxyTex
[TEXTURE_2D_INDEX
];
729 return texUnit
->CurrentTex
[TEXTURE_3D_INDEX
];
730 case GL_PROXY_TEXTURE_3D
:
731 return ctx
->Texture
.ProxyTex
[TEXTURE_3D_INDEX
];
732 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
733 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
734 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
735 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
736 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
737 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
738 case GL_TEXTURE_CUBE_MAP_ARB
:
739 return ctx
->Extensions
.ARB_texture_cube_map
740 ? texUnit
->CurrentTex
[TEXTURE_CUBE_INDEX
] : NULL
;
741 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
742 return ctx
->Extensions
.ARB_texture_cube_map
743 ? ctx
->Texture
.ProxyTex
[TEXTURE_CUBE_INDEX
] : NULL
;
744 case GL_TEXTURE_RECTANGLE_NV
:
745 return ctx
->Extensions
.NV_texture_rectangle
746 ? texUnit
->CurrentTex
[TEXTURE_RECT_INDEX
] : NULL
;
747 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
748 return ctx
->Extensions
.NV_texture_rectangle
749 ? ctx
->Texture
.ProxyTex
[TEXTURE_RECT_INDEX
] : NULL
;
750 case GL_TEXTURE_1D_ARRAY_EXT
:
751 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
752 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
753 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
754 case GL_TEXTURE_2D_ARRAY_EXT
:
755 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
756 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
757 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
758 case GL_TEXTURE_BUFFER
:
759 return _mesa_is_desktop_gl(ctx
)
760 && ctx
->Extensions
.ARB_texture_buffer_object
761 ? texUnit
->CurrentTex
[TEXTURE_BUFFER_INDEX
] : NULL
;
762 case GL_TEXTURE_EXTERNAL_OES
:
763 return ctx
->Extensions
.OES_EGL_image_external
764 ? texUnit
->CurrentTex
[TEXTURE_EXTERNAL_INDEX
] : NULL
;
766 _mesa_problem(NULL
, "bad target in _mesa_select_tex_object()");
773 * Return pointer to texture object for given target on current texture unit.
775 struct gl_texture_object
*
776 _mesa_get_current_tex_object(struct gl_context
*ctx
, GLenum target
)
778 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
779 return _mesa_select_tex_object(ctx
, texUnit
, target
);
784 * Get a texture image pointer from a texture object, given a texture
785 * target and mipmap level. The target and level parameters should
786 * have already been error-checked.
788 * \param ctx GL context.
789 * \param texObj texture unit.
790 * \param target texture target.
791 * \param level image level.
793 * \return pointer to the texture image structure, or NULL on failure.
795 struct gl_texture_image
*
796 _mesa_select_tex_image(struct gl_context
*ctx
,
797 const struct gl_texture_object
*texObj
,
798 GLenum target
, GLint level
)
800 const GLuint face
= _mesa_tex_target_to_face(target
);
804 ASSERT(level
< MAX_TEXTURE_LEVELS
);
806 return texObj
->Image
[face
][level
];
811 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
812 * it and install it. Only return NULL if passed a bad parameter or run
815 struct gl_texture_image
*
816 _mesa_get_tex_image(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
817 GLenum target
, GLint level
)
819 struct gl_texture_image
*texImage
;
824 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
826 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
828 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "texture image allocation");
832 set_tex_image(texObj
, target
, level
, texImage
);
840 * Return pointer to the specified proxy texture image.
841 * Note that proxy textures are per-context, not per-texture unit.
842 * \return pointer to texture image or NULL if invalid target, invalid
843 * level, or out of memory.
845 static struct gl_texture_image
*
846 get_proxy_tex_image(struct gl_context
*ctx
, GLenum target
, GLint level
)
848 struct gl_texture_image
*texImage
;
855 case GL_PROXY_TEXTURE_1D
:
856 if (level
>= ctx
->Const
.MaxTextureLevels
)
858 texIndex
= TEXTURE_1D_INDEX
;
860 case GL_PROXY_TEXTURE_2D
:
861 if (level
>= ctx
->Const
.MaxTextureLevels
)
863 texIndex
= TEXTURE_2D_INDEX
;
865 case GL_PROXY_TEXTURE_3D
:
866 if (level
>= ctx
->Const
.Max3DTextureLevels
)
868 texIndex
= TEXTURE_3D_INDEX
;
870 case GL_PROXY_TEXTURE_CUBE_MAP
:
871 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
873 texIndex
= TEXTURE_CUBE_INDEX
;
875 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
878 texIndex
= TEXTURE_RECT_INDEX
;
880 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
881 if (level
>= ctx
->Const
.MaxTextureLevels
)
883 texIndex
= TEXTURE_1D_ARRAY_INDEX
;
885 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
886 if (level
>= ctx
->Const
.MaxTextureLevels
)
888 texIndex
= TEXTURE_2D_ARRAY_INDEX
;
894 texImage
= ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
];
896 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
898 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "proxy texture allocation");
901 ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
] = texImage
;
902 /* Set the 'back' pointer */
903 texImage
->TexObject
= ctx
->Texture
.ProxyTex
[texIndex
];
910 * Get the maximum number of allowed mipmap levels.
912 * \param ctx GL context.
913 * \param target texture target.
915 * \return the maximum number of allowed mipmap levels for the given
916 * texture target, or zero if passed a bad target.
921 _mesa_max_texture_levels(struct gl_context
*ctx
, GLenum target
)
925 case GL_PROXY_TEXTURE_1D
:
927 case GL_PROXY_TEXTURE_2D
:
928 return ctx
->Const
.MaxTextureLevels
;
930 case GL_PROXY_TEXTURE_3D
:
931 return ctx
->Const
.Max3DTextureLevels
;
932 case GL_TEXTURE_CUBE_MAP
:
933 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
934 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
935 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
936 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
937 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
938 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
939 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
940 return ctx
->Extensions
.ARB_texture_cube_map
941 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
942 case GL_TEXTURE_RECTANGLE_NV
:
943 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
944 return ctx
->Extensions
.NV_texture_rectangle
? 1 : 0;
945 case GL_TEXTURE_1D_ARRAY_EXT
:
946 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
947 case GL_TEXTURE_2D_ARRAY_EXT
:
948 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
949 return (ctx
->Extensions
.MESA_texture_array
||
950 ctx
->Extensions
.EXT_texture_array
)
951 ? ctx
->Const
.MaxTextureLevels
: 0;
952 case GL_TEXTURE_BUFFER
:
953 return _mesa_is_desktop_gl(ctx
)
954 && ctx
->Extensions
.ARB_texture_buffer_object
956 case GL_TEXTURE_EXTERNAL_OES
:
959 return 0; /* bad target */
965 * Return number of dimensions per mipmap level for the given texture target.
968 _mesa_get_texture_dimensions(GLenum target
)
972 case GL_PROXY_TEXTURE_1D
:
975 case GL_TEXTURE_RECTANGLE
:
976 case GL_TEXTURE_CUBE_MAP
:
977 case GL_PROXY_TEXTURE_2D
:
978 case GL_PROXY_TEXTURE_RECTANGLE
:
979 case GL_PROXY_TEXTURE_CUBE_MAP
:
980 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
981 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
982 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
983 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
984 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
985 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
986 case GL_TEXTURE_1D_ARRAY
:
987 case GL_PROXY_TEXTURE_1D_ARRAY
:
988 case GL_TEXTURE_EXTERNAL_OES
:
991 case GL_PROXY_TEXTURE_3D
:
992 case GL_TEXTURE_2D_ARRAY
:
993 case GL_PROXY_TEXTURE_2D_ARRAY
:
995 case GL_TEXTURE_BUFFER
:
998 _mesa_problem(NULL
, "invalid target 0x%x in get_texture_dimensions()",
1007 #if 000 /* not used anymore */
1009 * glTexImage[123]D can accept a NULL image pointer. In this case we
1010 * create a texture image with unspecified image contents per the OpenGL
1014 make_null_texture(GLint width
, GLint height
, GLint depth
, GLenum format
)
1016 const GLint components
= _mesa_components_in_format(format
);
1017 const GLint numPixels
= width
* height
* depth
;
1018 GLubyte
*data
= (GLubyte
*) MALLOC(numPixels
* components
* sizeof(GLubyte
));
1022 * Let's see if anyone finds this. If glTexImage2D() is called with
1023 * a NULL image pointer then load the texture image with something
1024 * interesting instead of leaving it indeterminate.
1027 static const char message
[8][32] = {
1028 " X X XXXXX XXX X ",
1029 " XX XX X X X X X ",
1031 " X X XXXX XXX XXXXX ",
1034 " X X XXXXX XXX X X ",
1038 GLubyte
*imgPtr
= data
;
1040 for (h
= 0; h
< depth
; h
++) {
1041 for (i
= 0; i
< height
; i
++) {
1042 GLint srcRow
= 7 - (i
% 8);
1043 for (j
= 0; j
< width
; j
++) {
1044 GLint srcCol
= j
% 32;
1045 GLubyte texel
= (message
[srcRow
][srcCol
]=='X') ? 255 : 70;
1046 for (k
= 0; k
< components
; k
++) {
1062 * Set the size and format-related fields of a gl_texture_image struct
1063 * to zero. This is used when a proxy texture test fails.
1066 clear_teximage_fields(struct gl_texture_image
*img
)
1069 img
->_BaseFormat
= 0;
1070 img
->InternalFormat
= 0;
1079 img
->HeightLog2
= 0;
1081 img
->TexFormat
= MESA_FORMAT_NONE
;
1086 * Initialize basic fields of the gl_texture_image struct.
1088 * \param ctx GL context.
1089 * \param img texture image structure to be initialized.
1090 * \param width image width.
1091 * \param height image height.
1092 * \param depth image depth.
1093 * \param border image border.
1094 * \param internalFormat internal format.
1095 * \param format the actual hardware format (one of MESA_FORMAT_*)
1097 * Fills in the fields of \p img with the given information.
1098 * Note: width, height and depth include the border.
1101 _mesa_init_teximage_fields(struct gl_context
*ctx
,
1102 struct gl_texture_image
*img
,
1103 GLsizei width
, GLsizei height
, GLsizei depth
,
1104 GLint border
, GLenum internalFormat
,
1110 ASSERT(height
>= 0);
1113 target
= img
->TexObject
->Target
;
1114 img
->_BaseFormat
= _mesa_base_tex_format( ctx
, internalFormat
);
1115 ASSERT(img
->_BaseFormat
> 0);
1116 img
->InternalFormat
= internalFormat
;
1117 img
->Border
= border
;
1119 img
->Height
= height
;
1122 img
->Width2
= width
- 2 * border
; /* == 1 << img->WidthLog2; */
1123 img
->WidthLog2
= _mesa_logbase2(img
->Width2
);
1127 case GL_TEXTURE_BUFFER
:
1128 case GL_PROXY_TEXTURE_1D
:
1133 img
->HeightLog2
= 0;
1140 case GL_TEXTURE_1D_ARRAY
:
1141 case GL_PROXY_TEXTURE_1D_ARRAY
:
1142 img
->Height2
= height
; /* no border */
1143 img
->HeightLog2
= 0; /* not used */
1151 case GL_TEXTURE_RECTANGLE
:
1152 case GL_TEXTURE_CUBE_MAP
:
1153 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1154 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1155 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1156 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1157 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1158 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1159 case GL_TEXTURE_EXTERNAL_OES
:
1160 case GL_PROXY_TEXTURE_2D
:
1161 case GL_PROXY_TEXTURE_RECTANGLE
:
1162 case GL_PROXY_TEXTURE_CUBE_MAP
:
1163 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1164 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1171 case GL_TEXTURE_2D_ARRAY
:
1172 case GL_PROXY_TEXTURE_2D_ARRAY
:
1173 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1174 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1175 img
->Depth2
= depth
; /* no border */
1176 img
->DepthLog2
= 0; /* not used */
1179 case GL_PROXY_TEXTURE_3D
:
1180 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1181 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1182 img
->Depth2
= depth
- 2 * border
; /* == 1 << img->DepthLog2; */
1183 img
->DepthLog2
= _mesa_logbase2(img
->Depth2
);
1186 _mesa_problem(NULL
, "invalid target 0x%x in _mesa_init_teximage_fields()",
1190 img
->MaxLog2
= MAX2(img
->WidthLog2
, img
->HeightLog2
);
1191 img
->TexFormat
= format
;
1196 * Free and clear fields of the gl_texture_image struct.
1198 * \param ctx GL context.
1199 * \param texImage texture image structure to be cleared.
1201 * After the call, \p texImage will have no data associated with it. Its
1202 * fields are cleared so that its parent object will test incomplete.
1205 _mesa_clear_texture_image(struct gl_context
*ctx
,
1206 struct gl_texture_image
*texImage
)
1208 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
1209 clear_teximage_fields(texImage
);
1214 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1215 * level, width, height and depth against the ctx->Const limits for textures.
1217 * A hardware driver might override this function if, for example, the
1218 * max 3D texture size is 512x512x64 (i.e. not a cube).
1220 * Note that width, height, depth == 0 is not an error. However, a
1221 * texture with zero width/height/depth will be considered "incomplete"
1222 * and texturing will effectively be disabled.
1224 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1225 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1226 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1227 * \param level as passed to glTexImage
1228 * \param internalFormat as passed to glTexImage
1229 * \param format as passed to glTexImage
1230 * \param type as passed to glTexImage
1231 * \param width as passed to glTexImage
1232 * \param height as passed to glTexImage
1233 * \param depth as passed to glTexImage
1234 * \param border as passed to glTexImage
1235 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1238 _mesa_test_proxy_teximage(struct gl_context
*ctx
, GLenum target
, GLint level
,
1239 GLint internalFormat
, GLenum format
, GLenum type
,
1240 GLint width
, GLint height
, GLint depth
, GLint border
)
1244 (void) internalFormat
;
1249 case GL_PROXY_TEXTURE_1D
:
1250 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1251 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1253 if (level
>= ctx
->Const
.MaxTextureLevels
)
1255 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1256 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1261 case GL_PROXY_TEXTURE_2D
:
1262 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1263 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1265 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1267 if (level
>= ctx
->Const
.MaxTextureLevels
)
1269 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1270 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1272 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1277 case GL_PROXY_TEXTURE_3D
:
1278 maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
1279 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1281 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1283 if (depth
< 2 * border
|| depth
> 2 * border
+ maxSize
)
1285 if (level
>= ctx
->Const
.Max3DTextureLevels
)
1287 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1288 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1290 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1292 if (depth
> 0 && !_mesa_is_pow_two(depth
- 2 * border
))
1297 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1298 maxSize
= ctx
->Const
.MaxTextureRectSize
;
1299 if (width
< 0 || width
> maxSize
)
1301 if (height
< 0 || height
> maxSize
)
1307 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
1308 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1309 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1311 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1313 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
1315 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1316 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1318 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1323 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1324 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1325 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1327 if (height
< 1 || height
> ctx
->Const
.MaxArrayTextureLayers
)
1329 if (level
>= ctx
->Const
.MaxTextureLevels
)
1331 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1332 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1337 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1338 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1339 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1341 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1343 if (depth
< 1 || depth
> ctx
->Const
.MaxArrayTextureLayers
)
1345 if (level
>= ctx
->Const
.MaxTextureLevels
)
1347 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1348 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1350 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1356 _mesa_problem(ctx
, "Invalid target in _mesa_test_proxy_teximage");
1363 * Check if the memory used by the texture would exceed the driver's limit.
1364 * This lets us support a max 3D texture size of 8K (for example) but
1365 * prevents allocating a full 8K x 8K x 8K texture.
1366 * XXX this could be rolled into the proxy texture size test (above) but
1367 * we don't have the actual texture internal format at that point.
1370 legal_texture_size(struct gl_context
*ctx
, gl_format format
,
1371 GLint width
, GLint height
, GLint depth
)
1373 uint64_t bytes
= _mesa_format_image_size64(format
, width
, height
, depth
);
1374 uint64_t mbytes
= bytes
/ (1024 * 1024); /* convert to MB */
1375 return mbytes
<= (uint64_t) ctx
->Const
.MaxTextureMbytes
;
1380 * Return true if the format is only valid for glCompressedTexImage.
1383 compressedteximage_only_format(const struct gl_context
*ctx
, GLenum format
)
1386 case GL_ETC1_RGB8_OES
:
1387 case GL_PALETTE4_RGB8_OES
:
1388 case GL_PALETTE4_RGBA8_OES
:
1389 case GL_PALETTE4_R5_G6_B5_OES
:
1390 case GL_PALETTE4_RGBA4_OES
:
1391 case GL_PALETTE4_RGB5_A1_OES
:
1392 case GL_PALETTE8_RGB8_OES
:
1393 case GL_PALETTE8_RGBA8_OES
:
1394 case GL_PALETTE8_R5_G6_B5_OES
:
1395 case GL_PALETTE8_RGBA4_OES
:
1396 case GL_PALETTE8_RGB5_A1_OES
:
1405 * Helper function to determine whether a target and specific compression
1406 * format are supported.
1409 target_can_be_compressed(const struct gl_context
*ctx
, GLenum target
,
1412 (void) intFormat
; /* not used yet */
1416 case GL_PROXY_TEXTURE_2D
:
1417 return GL_TRUE
; /* true for any compressed format so far */
1418 case GL_PROXY_TEXTURE_CUBE_MAP
:
1419 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1420 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1421 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1422 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1423 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1424 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1425 return ctx
->Extensions
.ARB_texture_cube_map
;
1426 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1427 case GL_TEXTURE_2D_ARRAY_EXT
:
1428 return (ctx
->Extensions
.MESA_texture_array
||
1429 ctx
->Extensions
.EXT_texture_array
);
1437 * Check if the given texture target value is legal for a
1438 * glTexImage1/2/3D call.
1441 legal_teximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1447 case GL_PROXY_TEXTURE_1D
:
1448 return _mesa_is_desktop_gl(ctx
);
1456 case GL_PROXY_TEXTURE_2D
:
1457 return _mesa_is_desktop_gl(ctx
);
1458 case GL_PROXY_TEXTURE_CUBE_MAP
:
1459 return _mesa_is_desktop_gl(ctx
)
1460 && ctx
->Extensions
.ARB_texture_cube_map
;
1461 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1462 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1463 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1464 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1465 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1466 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1467 return ctx
->Extensions
.ARB_texture_cube_map
;
1468 case GL_TEXTURE_RECTANGLE_NV
:
1469 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1470 return _mesa_is_desktop_gl(ctx
)
1471 && ctx
->Extensions
.NV_texture_rectangle
;
1472 case GL_TEXTURE_1D_ARRAY_EXT
:
1473 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1474 return _mesa_is_desktop_gl(ctx
)
1475 && (ctx
->Extensions
.MESA_texture_array
||
1476 ctx
->Extensions
.EXT_texture_array
);
1484 case GL_PROXY_TEXTURE_3D
:
1485 return _mesa_is_desktop_gl(ctx
);
1486 case GL_TEXTURE_2D_ARRAY_EXT
:
1487 return (_mesa_is_desktop_gl(ctx
)
1488 && (ctx
->Extensions
.MESA_texture_array
||
1489 ctx
->Extensions
.EXT_texture_array
))
1490 || _mesa_is_gles3(ctx
);
1491 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1492 return _mesa_is_desktop_gl(ctx
)
1493 && (ctx
->Extensions
.MESA_texture_array
||
1494 ctx
->Extensions
.EXT_texture_array
);
1499 _mesa_problem(ctx
, "invalid dims=%u in legal_teximage_target()", dims
);
1506 * Check if the given texture target value is legal for a
1507 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1508 * The difference compared to legal_teximage_target() above is that
1509 * proxy targets are not supported.
1512 legal_texsubimage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1516 return _mesa_is_desktop_gl(ctx
) && target
== GL_TEXTURE_1D
;
1521 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1522 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1523 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1524 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1525 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1526 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1527 return ctx
->Extensions
.ARB_texture_cube_map
;
1528 case GL_TEXTURE_RECTANGLE_NV
:
1529 return _mesa_is_desktop_gl(ctx
)
1530 && ctx
->Extensions
.NV_texture_rectangle
;
1531 case GL_TEXTURE_1D_ARRAY_EXT
:
1532 return _mesa_is_desktop_gl(ctx
)
1533 && (ctx
->Extensions
.MESA_texture_array
||
1534 ctx
->Extensions
.EXT_texture_array
);
1542 case GL_TEXTURE_2D_ARRAY_EXT
:
1543 return (_mesa_is_desktop_gl(ctx
)
1544 && (ctx
->Extensions
.MESA_texture_array
||
1545 ctx
->Extensions
.EXT_texture_array
))
1546 || _mesa_is_gles3(ctx
);
1551 _mesa_problem(ctx
, "invalid dims=%u in legal_texsubimage_target()",
1559 * Helper function to determine if a texture object is mutable (in terms
1560 * of GL_ARB_texture_storage).
1563 mutable_tex_object(struct gl_context
*ctx
, GLenum target
)
1565 if (ctx
->Extensions
.ARB_texture_storage
) {
1566 struct gl_texture_object
*texObj
=
1567 _mesa_get_current_tex_object(ctx
, target
);
1568 return !texObj
->Immutable
;
1575 _mesa_es_error_check_format_and_type(GLenum format
, GLenum type
,
1576 unsigned dimensions
)
1578 bool type_valid
= true;
1583 case GL_LUMINANCE_ALPHA
:
1584 type_valid
= (type
== GL_UNSIGNED_BYTE
1586 || type
== GL_HALF_FLOAT_OES
);
1590 type_valid
= (type
== GL_UNSIGNED_BYTE
1591 || type
== GL_UNSIGNED_SHORT_5_6_5
1593 || type
== GL_HALF_FLOAT_OES
);
1597 type_valid
= (type
== GL_UNSIGNED_BYTE
1598 || type
== GL_UNSIGNED_SHORT_4_4_4_4
1599 || type
== GL_UNSIGNED_SHORT_5_5_5_1
1601 || type
== GL_HALF_FLOAT_OES
1602 || type
== GL_UNSIGNED_INT_2_10_10_10_REV
);
1605 case GL_DEPTH_COMPONENT
:
1606 /* This format is filtered against invalid dimensionalities elsewhere.
1608 type_valid
= (type
== GL_UNSIGNED_SHORT
1609 || type
== GL_UNSIGNED_INT
);
1612 case GL_DEPTH_STENCIL
:
1613 /* This format is filtered against invalid dimensionalities elsewhere.
1615 type_valid
= (type
== GL_UNSIGNED_INT_24_8
);
1619 type_valid
= (type
== GL_UNSIGNED_BYTE
);
1621 /* This feels like a bug in the EXT_texture_format_BGRA8888 spec, but
1622 * the format does not appear to be allowed for 3D textures in OpenGL
1625 if (dimensions
!= 2)
1626 return GL_INVALID_VALUE
;
1631 return GL_INVALID_VALUE
;
1634 return type_valid
? GL_NO_ERROR
: GL_INVALID_OPERATION
;
1640 * Return expected size of a compressed texture.
1643 compressed_tex_size(GLsizei width
, GLsizei height
, GLsizei depth
,
1646 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
1647 return _mesa_format_image_size(mesaFormat
, width
, height
, depth
);
1652 * Return compressed texture block size, in pixels.
1655 get_compressed_block_size(GLenum glformat
, GLuint
*bw
, GLuint
*bh
)
1657 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
1658 _mesa_get_format_block_size(mesaFormat
, bw
, bh
);
1663 * Special value returned by error some texture error checking functions when
1664 * an error is detected and the proxy texture image's width/height/depth/format
1665 * fields should be zeroed-out.
1667 #define PROXY_ERROR 2
1671 * Test the glTexImage[123]D() parameters for errors.
1673 * \param ctx GL context.
1674 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1675 * \param target texture target given by the user.
1676 * \param level image level given by the user.
1677 * \param internalFormat internal format given by the user.
1678 * \param format pixel data format given by the user.
1679 * \param type pixel data type given by the user.
1680 * \param width image width given by the user.
1681 * \param height image height given by the user.
1682 * \param depth image depth given by the user.
1683 * \param border image border given by the user.
1685 * \return PROXY_ERROR if there's an error that should zero-out the proxy image,
1686 * GL_TRUE if a regular GL error is found, or GL_FALSE if no error,
1688 * Verifies each of the parameters against the constants specified in
1689 * __struct gl_contextRec::Const and the supported extensions, and according
1690 * to the OpenGL specification.
1693 texture_error_check( struct gl_context
*ctx
,
1694 GLuint dimensions
, GLenum target
,
1695 GLint level
, GLint internalFormat
,
1696 GLenum format
, GLenum type
,
1697 GLint width
, GLint height
,
1698 GLint depth
, GLint border
)
1700 const GLenum proxyTarget
= get_proxy_target(target
);
1701 const GLboolean isProxy
= target
== proxyTarget
;
1702 GLboolean sizeOK
= GL_TRUE
;
1703 GLboolean colorFormat
;
1706 /* Even though there are no color-index textures, we still have to support
1707 * uploading color-index data and remapping it to RGB via the
1708 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1710 const GLboolean indexFormat
= (format
== GL_COLOR_INDEX
);
1712 /* Note: for proxy textures, some error conditions immediately generate
1713 * a GL error in the usual way. But others do not generate a GL error.
1714 * Instead, they cause the width, height, depth, format fields of the
1715 * texture image to be zeroed-out. The GL spec seems to indicate that the
1716 * zero-out behaviour is only used in cases related to memory allocation.
1719 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1720 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1721 _mesa_error(ctx
, GL_INVALID_VALUE
,
1722 "glTexImage%dD(level=%d)", dimensions
, level
);
1727 if (border
< 0 || border
> 1 ||
1728 ((ctx
->API
!= API_OPENGL
||
1729 target
== GL_TEXTURE_RECTANGLE_NV
||
1730 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1731 _mesa_error(ctx
, GL_INVALID_VALUE
,
1732 "glTexImage%dD(border=%d)", dimensions
, border
);
1736 if (width
< 0 || height
< 0 || depth
< 0) {
1737 _mesa_error(ctx
, GL_INVALID_VALUE
,
1738 "glTexImage%dD(width, height or depth < 0)", dimensions
);
1742 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1743 * combinations of format, internalFormat, and type that can be used.
1744 * Formats and types that require additional extensions (e.g., GL_FLOAT
1745 * requires GL_OES_texture_float) are filtered elsewhere.
1747 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
1748 if (format
!= internalFormat
) {
1749 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1750 "glTexImage%dD(format = %s, internalFormat = %s)",
1752 _mesa_lookup_enum_by_nr(format
),
1753 _mesa_lookup_enum_by_nr(internalFormat
));
1757 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
1758 if (err
!= GL_NO_ERROR
) {
1759 _mesa_error(ctx
, err
,
1760 "glTexImage%dD(format = %s, type = %s)",
1762 _mesa_lookup_enum_by_nr(format
),
1763 _mesa_lookup_enum_by_nr(type
));
1768 /* Do this simple check before calling the TestProxyTexImage() function */
1769 if (proxyTarget
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
) {
1770 sizeOK
= (width
== height
);
1774 * Use the proxy texture driver hook to see if the size/level/etc are
1777 sizeOK
= sizeOK
&& ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
1778 internalFormat
, format
,
1779 type
, width
, height
,
1783 /* No GL error is recorded, but we need to zero-out the image dims */
1787 _mesa_error(ctx
, GL_INVALID_VALUE
,
1788 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1789 dimensions
, level
, width
, height
, depth
);
1794 /* Check internalFormat */
1795 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1796 _mesa_error(ctx
, GL_INVALID_VALUE
,
1797 "glTexImage%dD(internalFormat=%s)",
1798 dimensions
, _mesa_lookup_enum_by_nr(internalFormat
));
1802 /* Check incoming image format and type */
1803 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
1804 if (err
!= GL_NO_ERROR
) {
1805 _mesa_error(ctx
, err
,
1806 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1807 dimensions
, format
, type
);
1811 /* make sure internal format and format basically agree */
1812 colorFormat
= _mesa_is_color_format(format
);
1813 if ((_mesa_is_color_format(internalFormat
) && !colorFormat
&& !indexFormat
) ||
1814 (_mesa_is_depth_format(internalFormat
) != _mesa_is_depth_format(format
)) ||
1815 (_mesa_is_ycbcr_format(internalFormat
) != _mesa_is_ycbcr_format(format
)) ||
1816 (_mesa_is_depthstencil_format(internalFormat
) != _mesa_is_depthstencil_format(format
)) ||
1817 (_mesa_is_dudv_format(internalFormat
) != _mesa_is_dudv_format(format
))) {
1818 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1819 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1820 dimensions
, internalFormat
, format
);
1824 /* additional checks for ycbcr textures */
1825 if (internalFormat
== GL_YCBCR_MESA
) {
1826 ASSERT(ctx
->Extensions
.MESA_ycbcr_texture
);
1827 if (type
!= GL_UNSIGNED_SHORT_8_8_MESA
&&
1828 type
!= GL_UNSIGNED_SHORT_8_8_REV_MESA
) {
1830 _mesa_snprintf(message
, sizeof(message
),
1831 "glTexImage%dD(format/type YCBCR mismatch)",
1833 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", message
);
1834 return GL_TRUE
; /* error */
1836 if (target
!= GL_TEXTURE_2D
&&
1837 target
!= GL_PROXY_TEXTURE_2D
&&
1838 target
!= GL_TEXTURE_RECTANGLE_NV
&&
1839 target
!= GL_PROXY_TEXTURE_RECTANGLE_NV
) {
1840 _mesa_error(ctx
, GL_INVALID_ENUM
,
1841 "glTexImage%dD(bad target for YCbCr texture)",
1847 _mesa_snprintf(message
, sizeof(message
),
1848 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1849 dimensions
, border
);
1850 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", message
);
1855 /* additional checks for depth textures */
1856 if (_mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_COMPONENT
) {
1857 /* Only 1D, 2D, rect, array and cube textures supported, not 3D
1858 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */
1859 if (target
!= GL_TEXTURE_1D
&&
1860 target
!= GL_PROXY_TEXTURE_1D
&&
1861 target
!= GL_TEXTURE_2D
&&
1862 target
!= GL_PROXY_TEXTURE_2D
&&
1863 target
!= GL_TEXTURE_1D_ARRAY
&&
1864 target
!= GL_PROXY_TEXTURE_1D_ARRAY
&&
1865 target
!= GL_TEXTURE_2D_ARRAY
&&
1866 target
!= GL_PROXY_TEXTURE_2D_ARRAY
&&
1867 target
!= GL_TEXTURE_RECTANGLE_ARB
&&
1868 target
!= GL_PROXY_TEXTURE_RECTANGLE_ARB
&&
1869 !((_mesa_is_cube_face(target
) || target
== GL_PROXY_TEXTURE_CUBE_MAP
) &&
1870 (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_gpu_shader4
))) {
1871 _mesa_error(ctx
, GL_INVALID_ENUM
,
1872 "glTexImage%dD(bad target for depth texture)",
1878 /* additional checks for compressed textures */
1879 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
1880 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1881 _mesa_error(ctx
, GL_INVALID_ENUM
,
1882 "glTexImage%dD(target can't be compressed)", dimensions
);
1885 if (compressedteximage_only_format(ctx
, internalFormat
)) {
1886 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1887 "glTexImage%dD(no compression for format)", dimensions
);
1891 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1892 "glTexImage%dD(border!=0)", dimensions
);
1897 /* additional checks for integer textures */
1898 if ((ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) &&
1899 (_mesa_is_enum_format_integer(format
) !=
1900 _mesa_is_enum_format_integer(internalFormat
))) {
1901 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1902 "glTexImage%dD(integer/non-integer format mismatch)",
1907 if (!mutable_tex_object(ctx
, target
)) {
1908 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1909 "glTexImage%dD(immutable texture)", dimensions
);
1913 /* if we get here, the parameters are OK */
1919 * Error checking for glCompressedTexImage[123]D().
1920 * \param reason returns reason for error, if any
1921 * \return error code or GL_NO_ERROR or PROXY_ERROR.
1924 compressed_texture_error_check(struct gl_context
*ctx
, GLint dimensions
,
1925 GLenum target
, GLint level
,
1926 GLenum internalFormat
, GLsizei width
,
1927 GLsizei height
, GLsizei depth
, GLint border
,
1930 const GLenum proxyTarget
= get_proxy_target(target
);
1931 const GLint maxLevels
= _mesa_max_texture_levels(ctx
, target
);
1933 GLenum choose_format
;
1935 GLenum proxy_format
;
1936 GLenum error
= GL_NO_ERROR
;
1937 char *reason
= ""; /* no error */
1939 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1941 error
= GL_INVALID_ENUM
;
1945 /* This will detect any invalid internalFormat value */
1946 if (!_mesa_is_compressed_format(ctx
, internalFormat
)) {
1947 reason
= "internalFormat";
1948 error
= GL_INVALID_ENUM
;
1952 switch (internalFormat
) {
1954 case GL_PALETTE4_RGB8_OES
:
1955 case GL_PALETTE4_RGBA8_OES
:
1956 case GL_PALETTE4_R5_G6_B5_OES
:
1957 case GL_PALETTE4_RGBA4_OES
:
1958 case GL_PALETTE4_RGB5_A1_OES
:
1959 case GL_PALETTE8_RGB8_OES
:
1960 case GL_PALETTE8_RGBA8_OES
:
1961 case GL_PALETTE8_R5_G6_B5_OES
:
1962 case GL_PALETTE8_RGBA4_OES
:
1963 case GL_PALETTE8_RGB5_A1_OES
:
1964 _mesa_cpal_compressed_format_type(internalFormat
, &choose_format
,
1966 proxy_format
= choose_format
;
1968 /* check level (note that level should be zero or less!) */
1969 if (level
> 0 || level
< -maxLevels
) {
1971 error
= GL_INVALID_VALUE
;
1975 if (dimensions
!= 2) {
1976 reason
= "compressed paletted textures must be 2D";
1977 error
= GL_INVALID_OPERATION
;
1981 /* Figure out the expected texture size (in bytes). This will be
1982 * checked against the actual size later.
1984 expectedSize
= _mesa_cpal_compressed_size(level
, internalFormat
,
1987 /* This is for the benefit of the TestProxyTexImage below. It expects
1988 * level to be non-negative. OES_compressed_paletted_texture uses a
1989 * weird mechanism where the level specified to glCompressedTexImage2D
1990 * is -(n-1) number of levels in the texture, and the data specifies the
1991 * complete mipmap stack. This is done to ensure the palette is the
1992 * same for all levels.
1999 choose_format
= GL_NONE
;
2000 choose_type
= GL_NONE
;
2001 proxy_format
= internalFormat
;
2004 if (level
< 0 || level
>= maxLevels
) {
2006 error
= GL_INVALID_VALUE
;
2010 /* Figure out the expected texture size (in bytes). This will be
2011 * checked against the actual size later.
2013 expectedSize
= compressed_tex_size(width
, height
, depth
, internalFormat
);
2017 /* This should really never fail */
2018 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
2019 reason
= "internalFormat";
2020 error
= GL_INVALID_ENUM
;
2024 /* No compressed formats support borders at this time */
2026 reason
= "border != 0";
2027 error
= GL_INVALID_VALUE
;
2031 /* For cube map, width must equal height */
2032 if (_mesa_is_cube_face(target
) && width
!= height
) {
2033 reason
= "width != height";
2034 error
= GL_INVALID_VALUE
;
2038 /* check image size against compression block size */
2040 gl_format texFormat
=
2041 ctx
->Driver
.ChooseTextureFormat(ctx
, target
, proxy_format
,
2042 choose_format
, choose_type
);
2045 _mesa_get_format_block_size(texFormat
, &bw
, &bh
);
2046 if ((width
> bw
&& width
% bw
> 0) ||
2047 (height
> bh
&& height
% bh
> 0)) {
2049 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is
2050 * generated [...] if any parameter combinations are not
2051 * supported by the specific compressed internal format.
2053 reason
= "invalid width or height for compression format";
2054 error
= GL_INVALID_OPERATION
;
2059 /* check image sizes */
2060 if (!ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
2061 proxy_format
, choose_format
,
2063 width
, height
, depth
, border
)) {
2064 /* See error comment above */
2065 if (target
== proxyTarget
) {
2068 reason
= "invalid width, height or format";
2069 error
= GL_INVALID_OPERATION
;
2073 /* check image size in bytes */
2074 if (expectedSize
!= imageSize
) {
2075 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
2076 * if <imageSize> is not consistent with the format, dimensions, and
2077 * contents of the specified image.
2079 reason
= "imageSize inconsistant with width/height/format";
2080 error
= GL_INVALID_VALUE
;
2084 if (!mutable_tex_object(ctx
, target
)) {
2085 reason
= "immutable texture";
2086 error
= GL_INVALID_OPERATION
;
2093 _mesa_error(ctx
, error
, "glCompressedTexImage%dD(%s)", dimensions
, reason
);
2100 * Test glTexSubImage[123]D() parameters for errors.
2102 * \param ctx GL context.
2103 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2104 * \param target texture target given by the user.
2105 * \param level image level given by the user.
2106 * \param xoffset sub-image x offset given by the user.
2107 * \param yoffset sub-image y offset given by the user.
2108 * \param zoffset sub-image z offset given by the user.
2109 * \param format pixel data format given by the user.
2110 * \param type pixel data type given by the user.
2111 * \param width image width given by the user.
2112 * \param height image height given by the user.
2113 * \param depth image depth given by the user.
2115 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2117 * Verifies each of the parameters against the constants specified in
2118 * __struct gl_contextRec::Const and the supported extensions, and according
2119 * to the OpenGL specification.
2122 subtexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
2123 GLenum target
, GLint level
,
2124 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2125 GLint width
, GLint height
, GLint depth
,
2126 GLenum format
, GLenum type
)
2130 /* Basic level check */
2131 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
2132 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage2D(level=%d)", level
);
2136 /* Check for negative sizes */
2138 _mesa_error(ctx
, GL_INVALID_VALUE
,
2139 "glTexSubImage%dD(width=%d)", dimensions
, width
);
2142 if (height
< 0 && dimensions
> 1) {
2143 _mesa_error(ctx
, GL_INVALID_VALUE
,
2144 "glTexSubImage%dD(height=%d)", dimensions
, height
);
2147 if (depth
< 0 && dimensions
> 2) {
2148 _mesa_error(ctx
, GL_INVALID_VALUE
,
2149 "glTexSubImage%dD(depth=%d)", dimensions
, depth
);
2153 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2154 * combinations of format and type that can be used. Formats and types
2155 * that require additional extensions (e.g., GL_FLOAT requires
2156 * GL_OES_texture_float) are filtered elsewhere.
2158 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2159 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
2160 if (err
!= GL_NO_ERROR
) {
2161 _mesa_error(ctx
, err
,
2162 "glTexSubImage%dD(format = %s, type = %s)",
2164 _mesa_lookup_enum_by_nr(format
),
2165 _mesa_lookup_enum_by_nr(type
));
2170 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
2171 if (err
!= GL_NO_ERROR
) {
2172 _mesa_error(ctx
, err
,
2173 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
2174 dimensions
, format
, type
);
2183 * Do second part of glTexSubImage which depends on the destination texture.
2184 * \return GL_TRUE if error recorded, GL_FALSE otherwise
2187 subtexture_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
2188 GLenum target
, GLint level
,
2189 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2190 GLint width
, GLint height
, GLint depth
,
2191 GLenum format
, GLenum type
,
2192 const struct gl_texture_image
*destTex
)
2195 /* undefined image level */
2196 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexSubImage%dD", dimensions
);
2200 if (xoffset
< -((GLint
)destTex
->Border
)) {
2201 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset)",
2205 if (xoffset
+ width
> (GLint
) (destTex
->Width
+ destTex
->Border
)) {
2206 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset+width)",
2210 if (dimensions
> 1) {
2211 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : destTex
->Border
;
2212 if (yoffset
< -yBorder
) {
2213 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset)",
2217 if (yoffset
+ height
> (GLint
) destTex
->Height
+ yBorder
) {
2218 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset+height)",
2223 if (dimensions
> 2) {
2224 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
) ? 0 : destTex
->Border
;
2225 if (zoffset
< -zBorder
) {
2226 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset)");
2229 if (zoffset
+ depth
> (GLint
) destTex
->Depth
+ zBorder
) {
2230 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset+depth)");
2235 if (_mesa_is_format_compressed(destTex
->TexFormat
)) {
2238 if (compressedteximage_only_format(ctx
, destTex
->InternalFormat
)) {
2239 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2240 "glTexSubImage%dD(no compression for format)", dimensions
);
2244 /* do tests which depend on compression block size */
2245 _mesa_get_format_block_size(destTex
->TexFormat
, &bw
, &bh
);
2247 /* offset must be multiple of block size */
2248 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0)) {
2249 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2250 "glTexSubImage%dD(xoffset = %d, yoffset = %d)",
2251 dimensions
, xoffset
, yoffset
);
2254 /* size must be multiple of bw by bh or equal to whole texture size */
2255 if ((width
% bw
!= 0) && (GLuint
) width
!= destTex
->Width
) {
2256 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2257 "glTexSubImage%dD(width = %d)", dimensions
, width
);
2260 if ((height
% bh
!= 0) && (GLuint
) height
!= destTex
->Height
) {
2261 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2262 "glTexSubImage%dD(height = %d)", dimensions
, height
);
2267 if (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) {
2268 /* both source and dest must be integer-valued, or neither */
2269 if (_mesa_is_format_integer_color(destTex
->TexFormat
) !=
2270 _mesa_is_enum_format_integer(format
)) {
2271 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2272 "glTexSubImage%dD(integer/non-integer format mismatch)",
2283 * Test glCopyTexImage[12]D() parameters for errors.
2285 * \param ctx GL context.
2286 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2287 * \param target texture target given by the user.
2288 * \param level image level given by the user.
2289 * \param internalFormat internal format given by the user.
2290 * \param width image width given by the user.
2291 * \param height image height given by the user.
2292 * \param border texture border.
2294 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2296 * Verifies each of the parameters against the constants specified in
2297 * __struct gl_contextRec::Const and the supported extensions, and according
2298 * to the OpenGL specification.
2301 copytexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
2302 GLenum target
, GLint level
, GLint internalFormat
,
2303 GLint width
, GLint height
, GLint border
)
2305 const GLenum proxyTarget
= get_proxy_target(target
);
2306 const GLenum type
= GL_FLOAT
;
2311 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2312 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexImage%uD(target=%s)",
2313 dimensions
, _mesa_lookup_enum_by_nr(target
));
2317 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
2318 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
2319 _mesa_error(ctx
, GL_INVALID_VALUE
,
2320 "glCopyTexImage%dD(level=%d)", dimensions
, level
);
2324 /* Check that the source buffer is complete */
2325 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2326 if (ctx
->ReadBuffer
->_Status
== 0) {
2327 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2329 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2330 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2331 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2335 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2336 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2337 "glCopyTexImage%dD(multisample FBO)",
2344 if (border
< 0 || border
> 1 ||
2345 ((ctx
->API
!= API_OPENGL
||
2346 target
== GL_TEXTURE_RECTANGLE_NV
||
2347 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
2348 _mesa_error(ctx
, GL_INVALID_VALUE
,
2349 "glCopyTexImage%dD(border=%d)", dimensions
, border
);
2353 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2356 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2357 switch (internalFormat
) {
2362 case GL_LUMINANCE_ALPHA
:
2365 _mesa_error(ctx
, GL_INVALID_VALUE
,
2366 "glCopyTexImage%dD(internalFormat)", dimensions
);
2371 baseFormat
= _mesa_base_tex_format(ctx
, internalFormat
);
2372 if (baseFormat
< 0) {
2373 _mesa_error(ctx
, GL_INVALID_VALUE
,
2374 "glCopyTexImage%dD(internalFormat)", dimensions
);
2378 if (!_mesa_source_buffer_exists(ctx
, baseFormat
)) {
2379 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2380 "glCopyTexImage%dD(missing readbuffer)", dimensions
);
2384 /* From the EXT_texture_integer spec:
2386 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2387 * if the texture internalformat is an integer format and the read color
2388 * buffer is not an integer format, or if the internalformat is not an
2389 * integer format and the read color buffer is an integer format."
2391 if (_mesa_is_color_format(internalFormat
)) {
2392 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2394 if (_mesa_is_enum_format_integer(rb
->InternalFormat
) !=
2395 _mesa_is_enum_format_integer(internalFormat
)) {
2396 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2397 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2402 /* Do size, level checking */
2403 sizeOK
= (proxyTarget
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
)
2404 ? (width
== height
) : 1;
2406 sizeOK
= sizeOK
&& ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
2407 internalFormat
, baseFormat
,
2408 type
, width
, height
,
2412 if (dimensions
== 1) {
2413 _mesa_error(ctx
, GL_INVALID_VALUE
,
2414 "glCopyTexImage1D(width=%d)", width
);
2417 ASSERT(dimensions
== 2);
2418 _mesa_error(ctx
, GL_INVALID_VALUE
,
2419 "glCopyTexImage2D(width=%d, height=%d)", width
, height
);
2424 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
2425 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2426 _mesa_error(ctx
, GL_INVALID_ENUM
,
2427 "glCopyTexImage%dD(target)", dimensions
);
2430 if (compressedteximage_only_format(ctx
, internalFormat
)) {
2431 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2432 "glCopyTexImage%dD(no compression for format)", dimensions
);
2436 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2437 "glCopyTexImage%dD(border!=0)", dimensions
);
2442 if (!mutable_tex_object(ctx
, target
)) {
2443 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2444 "glCopyTexImage%dD(immutable texture)", dimensions
);
2448 /* if we get here, the parameters are OK */
2454 * Test glCopyTexSubImage[12]D() parameters for errors.
2455 * Note that this is the first part of error checking.
2456 * See also copytexsubimage_error_check2() below for the second part.
2458 * \param ctx GL context.
2459 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2460 * \param target texture target given by the user.
2461 * \param level image level given by the user.
2463 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2466 copytexsubimage_error_check1( struct gl_context
*ctx
, GLuint dimensions
,
2467 GLenum target
, GLint level
)
2469 /* Check that the source buffer is complete */
2470 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2471 if (ctx
->ReadBuffer
->_Status
== 0) {
2472 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2474 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2475 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2476 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2480 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2481 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2482 "glCopyTexSubImage%dD(multisample FBO)",
2488 /* check target (proxies not allowed) */
2489 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2490 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexSubImage%uD(target=%s)",
2491 dimensions
, _mesa_lookup_enum_by_nr(target
));
2496 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
2497 _mesa_error(ctx
, GL_INVALID_VALUE
,
2498 "glCopyTexSubImage%dD(level=%d)", dimensions
, level
);
2507 * Second part of error checking for glCopyTexSubImage[12]D().
2508 * \param xoffset sub-image x offset given by the user.
2509 * \param yoffset sub-image y offset given by the user.
2510 * \param zoffset sub-image z offset given by the user.
2511 * \param width image width given by the user.
2512 * \param height image height given by the user.
2515 copytexsubimage_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
2516 GLenum target
, GLint level
,
2517 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2518 GLsizei width
, GLsizei height
,
2519 const struct gl_texture_image
*teximage
)
2521 /* check that dest tex image exists */
2523 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2524 "glCopyTexSubImage%dD(undefined texture level: %d)",
2531 _mesa_error(ctx
, GL_INVALID_VALUE
,
2532 "glCopyTexSubImage%dD(width=%d)", dimensions
, width
);
2535 if (dimensions
> 1 && height
< 0) {
2536 _mesa_error(ctx
, GL_INVALID_VALUE
,
2537 "glCopyTexSubImage%dD(height=%d)", dimensions
, height
);
2541 /* check x/y offsets */
2542 if (xoffset
< -((GLint
)teximage
->Border
)) {
2543 _mesa_error(ctx
, GL_INVALID_VALUE
,
2544 "glCopyTexSubImage%dD(xoffset=%d)", dimensions
, xoffset
);
2547 if (xoffset
+ width
> (GLint
) (teximage
->Width
+ teximage
->Border
)) {
2548 _mesa_error(ctx
, GL_INVALID_VALUE
,
2549 "glCopyTexSubImage%dD(xoffset+width)", dimensions
);
2552 if (dimensions
> 1) {
2553 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : teximage
->Border
;
2554 if (yoffset
< -yBorder
) {
2555 _mesa_error(ctx
, GL_INVALID_VALUE
,
2556 "glCopyTexSubImage%dD(yoffset=%d)", dimensions
, yoffset
);
2559 /* NOTE: we're adding the border here, not subtracting! */
2560 if (yoffset
+ height
> (GLint
) teximage
->Height
+ yBorder
) {
2561 _mesa_error(ctx
, GL_INVALID_VALUE
,
2562 "glCopyTexSubImage%dD(yoffset+height)", dimensions
);
2567 /* check z offset */
2568 if (dimensions
> 2) {
2569 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
) ? 0 : teximage
->Border
;
2570 if (zoffset
< -zBorder
) {
2571 _mesa_error(ctx
, GL_INVALID_VALUE
,
2572 "glCopyTexSubImage%dD(zoffset)", dimensions
);
2575 if (zoffset
> (GLint
) teximage
->Depth
+ zBorder
) {
2576 _mesa_error(ctx
, GL_INVALID_VALUE
,
2577 "glCopyTexSubImage%dD(zoffset+depth)", dimensions
);
2582 if (_mesa_is_format_compressed(teximage
->TexFormat
)) {
2583 if (compressedteximage_only_format(ctx
, teximage
->InternalFormat
)) {
2584 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2585 "glCopyTexSubImage%dD(no compression for format)", dimensions
);
2588 /* offset must be multiple of 4 */
2589 if ((xoffset
& 3) || (yoffset
& 3)) {
2590 _mesa_error(ctx
, GL_INVALID_VALUE
,
2591 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions
);
2594 /* size must be multiple of 4 */
2595 if ((width
& 3) != 0 && (GLuint
) width
!= teximage
->Width
) {
2596 _mesa_error(ctx
, GL_INVALID_VALUE
,
2597 "glCopyTexSubImage%dD(width)", dimensions
);
2600 if ((height
& 3) != 0 && (GLuint
) height
!= teximage
->Height
) {
2601 _mesa_error(ctx
, GL_INVALID_VALUE
,
2602 "glCopyTexSubImage%dD(height)", dimensions
);
2607 if (teximage
->InternalFormat
== GL_YCBCR_MESA
) {
2608 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glCopyTexSubImage2D");
2612 if (!_mesa_source_buffer_exists(ctx
, teximage
->_BaseFormat
)) {
2613 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2614 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2615 dimensions
, teximage
->_BaseFormat
);
2619 /* From the EXT_texture_integer spec:
2621 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2622 * if the texture internalformat is an integer format and the read color
2623 * buffer is not an integer format, or if the internalformat is not an
2624 * integer format and the read color buffer is an integer format."
2626 if (_mesa_is_color_format(teximage
->InternalFormat
)) {
2627 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2629 if (_mesa_is_format_integer_color(rb
->Format
) !=
2630 _mesa_is_format_integer_color(teximage
->TexFormat
)) {
2631 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2632 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2637 /* if we get here, the parameters are OK */
2642 /** Callback info for walking over FBO hash table */
2645 struct gl_context
*ctx
;
2646 struct gl_texture_object
*texObj
;
2652 * Check render to texture callback. Called from _mesa_HashWalk().
2655 check_rtt_cb(GLuint key
, void *data
, void *userData
)
2657 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2658 const struct cb_info
*info
= (struct cb_info
*) userData
;
2659 struct gl_context
*ctx
= info
->ctx
;
2660 const struct gl_texture_object
*texObj
= info
->texObj
;
2661 const GLuint level
= info
->level
, face
= info
->face
;
2663 /* If this is a user-created FBO */
2664 if (_mesa_is_user_fbo(fb
)) {
2666 /* check if any of the FBO's attachments point to 'texObj' */
2667 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2668 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2669 if (att
->Type
== GL_TEXTURE
&&
2670 att
->Texture
== texObj
&&
2671 att
->TextureLevel
== level
&&
2672 att
->CubeMapFace
== face
) {
2673 ASSERT(_mesa_get_attachment_teximage(att
));
2674 /* Tell driver about the new renderbuffer texture */
2675 ctx
->Driver
.RenderTexture(ctx
, ctx
->DrawBuffer
, att
);
2676 /* Mark fb status as indeterminate to force re-validation */
2685 * When a texture image is specified we have to check if it's bound to
2686 * any framebuffer objects (render to texture) in order to detect changes
2687 * in size or format since that effects FBO completeness.
2688 * Any FBOs rendering into the texture must be re-validated.
2691 _mesa_update_fbo_texture(struct gl_context
*ctx
,
2692 struct gl_texture_object
*texObj
,
2693 GLuint face
, GLuint level
)
2695 /* Only check this texture if it's been marked as RenderToTexture */
2696 if (texObj
->_RenderToTexture
) {
2697 struct cb_info info
;
2699 info
.texObj
= texObj
;
2702 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, check_rtt_cb
, &info
);
2708 * If the texture object's GenerateMipmap flag is set and we've
2709 * changed the texture base level image, regenerate the rest of the
2710 * mipmap levels now.
2713 check_gen_mipmap(struct gl_context
*ctx
, GLenum target
,
2714 struct gl_texture_object
*texObj
, GLint level
)
2716 ASSERT(target
!= GL_TEXTURE_CUBE_MAP
);
2717 if (texObj
->GenerateMipmap
&&
2718 level
== texObj
->BaseLevel
&&
2719 level
< texObj
->MaxLevel
) {
2720 ASSERT(ctx
->Driver
.GenerateMipmap
);
2721 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2726 /** Debug helper: override the user-requested internal format */
2728 override_internal_format(GLenum internalFormat
, GLint width
, GLint height
)
2731 if (internalFormat
== GL_RGBA16F_ARB
||
2732 internalFormat
== GL_RGBA32F_ARB
) {
2733 printf("Convert rgba float tex to int %d x %d\n", width
, height
);
2736 else if (internalFormat
== GL_RGB16F_ARB
||
2737 internalFormat
== GL_RGB32F_ARB
) {
2738 printf("Convert rgb float tex to int %d x %d\n", width
, height
);
2741 else if (internalFormat
== GL_LUMINANCE_ALPHA16F_ARB
||
2742 internalFormat
== GL_LUMINANCE_ALPHA32F_ARB
) {
2743 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2744 return GL_LUMINANCE_ALPHA
;
2746 else if (internalFormat
== GL_LUMINANCE16F_ARB
||
2747 internalFormat
== GL_LUMINANCE32F_ARB
) {
2748 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2749 return GL_LUMINANCE
;
2751 else if (internalFormat
== GL_ALPHA16F_ARB
||
2752 internalFormat
== GL_ALPHA32F_ARB
) {
2753 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2757 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2758 internalFormat = GL_RGBA;
2762 return internalFormat
;
2765 return internalFormat
;
2771 * Choose the actual hardware format for a texture image.
2772 * Try to use the same format as the previous image level when possible.
2773 * Otherwise, ask the driver for the best format.
2774 * It's important to try to choose a consistant format for all levels
2775 * for efficient texture memory layout/allocation. In particular, this
2776 * comes up during automatic mipmap generation.
2779 _mesa_choose_texture_format(struct gl_context
*ctx
,
2780 struct gl_texture_object
*texObj
,
2781 GLenum target
, GLint level
,
2782 GLenum internalFormat
, GLenum format
, GLenum type
)
2786 /* see if we've already chosen a format for the previous level */
2788 struct gl_texture_image
*prevImage
=
2789 _mesa_select_tex_image(ctx
, texObj
, target
, level
- 1);
2790 /* See if the prev level is defined and has an internal format which
2791 * matches the new internal format.
2794 prevImage
->Width
> 0 &&
2795 prevImage
->InternalFormat
== internalFormat
) {
2796 /* use the same format */
2797 ASSERT(prevImage
->TexFormat
!= MESA_FORMAT_NONE
);
2798 return prevImage
->TexFormat
;
2802 /* choose format from scratch */
2803 f
= ctx
->Driver
.ChooseTextureFormat(ctx
, texObj
->Target
, internalFormat
,
2805 ASSERT(f
!= MESA_FORMAT_NONE
);
2810 * Adjust pixel unpack params and image dimensions to strip off the
2811 * one-pixel texture border.
2813 * Gallium and intel don't support texture borders. They've seldem been used
2814 * and seldom been implemented correctly anyway.
2816 * \param unpackNew returns the new pixel unpack parameters
2819 strip_texture_border(GLenum target
,
2820 GLint
*width
, GLint
*height
, GLint
*depth
,
2821 const struct gl_pixelstore_attrib
*unpack
,
2822 struct gl_pixelstore_attrib
*unpackNew
)
2828 *unpackNew
= *unpack
;
2830 if (unpackNew
->RowLength
== 0)
2831 unpackNew
->RowLength
= *width
;
2833 if (unpackNew
->ImageHeight
== 0)
2834 unpackNew
->ImageHeight
= *height
;
2836 assert(*width
>= 3);
2837 unpackNew
->SkipPixels
++; /* skip the border */
2838 *width
= *width
- 2; /* reduce the width by two border pixels */
2840 /* The min height of a texture with a border is 3 */
2841 if (*height
>= 3 && target
!= GL_TEXTURE_1D_ARRAY
) {
2842 unpackNew
->SkipRows
++; /* skip the border */
2843 *height
= *height
- 2; /* reduce the height by two border pixels */
2846 if (*depth
>= 3 && target
!= GL_TEXTURE_2D_ARRAY
) {
2847 unpackNew
->SkipImages
++; /* skip the border */
2848 *depth
= *depth
- 2; /* reduce the depth by two border pixels */
2854 * Common code to implement all the glTexImage1D/2D/3D functions
2855 * as well as glCompressedTexImage1D/2D/3D.
2856 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls.
2857 * \param format the user's image format (only used if !compressed)
2858 * \param type the user's image type (only used if !compressed)
2859 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls.
2862 teximage(struct gl_context
*ctx
, GLboolean compressed
, GLuint dims
,
2863 GLenum target
, GLint level
, GLint internalFormat
,
2864 GLsizei width
, GLsizei height
, GLsizei depth
,
2865 GLint border
, GLenum format
, GLenum type
,
2866 GLsizei imageSize
, const GLvoid
*pixels
)
2868 const char *func
= compressed
? "glCompressedTexImage" : "glTexImage";
2870 struct gl_pixelstore_attrib unpack_no_border
;
2871 const struct gl_pixelstore_attrib
*unpack
= &ctx
->Unpack
;
2873 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2875 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
)) {
2878 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n",
2880 _mesa_lookup_enum_by_nr(target
), level
,
2881 _mesa_lookup_enum_by_nr(internalFormat
),
2882 width
, height
, depth
, border
, pixels
);
2885 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2887 _mesa_lookup_enum_by_nr(target
), level
,
2888 _mesa_lookup_enum_by_nr(internalFormat
),
2889 width
, height
, depth
, border
,
2890 _mesa_lookup_enum_by_nr(format
),
2891 _mesa_lookup_enum_by_nr(type
), pixels
);
2894 internalFormat
= override_internal_format(internalFormat
, width
, height
);
2896 /* target error checking */
2897 if (!legal_teximage_target(ctx
, dims
, target
)) {
2898 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s%uD(target=%s)",
2899 func
, dims
, _mesa_lookup_enum_by_nr(target
));
2903 /* general error checking */
2905 error
= compressed_texture_error_check(ctx
, dims
, target
, level
,
2907 width
, height
, depth
,
2911 error
= texture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2912 format
, type
, width
, height
, depth
, border
);
2916 /* Here we convert a cpal compressed image into a regular glTexImage2D
2917 * call by decompressing the texture. If we really want to support cpal
2918 * textures in any driver this would have to be changed.
2920 if (compressed
&& !error
&& dims
== 2) {
2921 switch (internalFormat
) {
2922 case GL_PALETTE4_RGB8_OES
:
2923 case GL_PALETTE4_RGBA8_OES
:
2924 case GL_PALETTE4_R5_G6_B5_OES
:
2925 case GL_PALETTE4_RGBA4_OES
:
2926 case GL_PALETTE4_RGB5_A1_OES
:
2927 case GL_PALETTE8_RGB8_OES
:
2928 case GL_PALETTE8_RGBA8_OES
:
2929 case GL_PALETTE8_R5_G6_B5_OES
:
2930 case GL_PALETTE8_RGBA4_OES
:
2931 case GL_PALETTE8_RGB5_A1_OES
:
2932 _mesa_cpal_compressed_teximage2d(target
, level
, internalFormat
,
2933 width
, height
, imageSize
, pixels
);
2939 if (_mesa_is_proxy_texture(target
)) {
2940 /* Proxy texture: just clear or set state depending on error checking */
2941 struct gl_texture_image
*texImage
=
2942 get_proxy_tex_image(ctx
, target
, level
);
2943 gl_format texFormat
= MESA_FORMAT_NONE
;
2946 /* No parameter errors. Choose a texture format and see if we
2947 * can really allocate the texture.
2949 struct gl_texture_object
*texObj
=
2950 _mesa_get_current_tex_object(ctx
, target
);
2951 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
2952 internalFormat
, format
, type
);
2953 if (!legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
2954 error
= PROXY_ERROR
;
2958 if (error
== PROXY_ERROR
) {
2959 /* image too large, etc. Clear all proxy texture image parameters. */
2961 clear_teximage_fields(texImage
);
2963 else if (error
== GL_FALSE
) {
2964 /* no error: store the teximage parameters */
2966 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, depth
,
2967 border
, internalFormat
, texFormat
);
2970 /* other, regular error (was already recorded) */
2974 /* non-proxy target */
2975 const GLuint face
= _mesa_tex_target_to_face(target
);
2976 struct gl_texture_object
*texObj
;
2977 struct gl_texture_image
*texImage
;
2980 return; /* error was recorded */
2983 /* Allow a hardware driver to just strip out the border, to provide
2984 * reliable but slightly incorrect hardware rendering instead of
2985 * rarely-tested software fallback rendering.
2987 if (border
&& ctx
->Const
.StripTextureBorder
) {
2988 strip_texture_border(target
, &width
, &height
, &depth
, unpack
,
2991 unpack
= &unpack_no_border
;
2994 if (ctx
->NewState
& _NEW_PIXEL
)
2995 _mesa_update_state(ctx
);
2997 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2999 _mesa_lock_texture(ctx
, texObj
);
3001 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3004 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s%uD", func
, dims
);
3007 gl_format texFormat
;
3009 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3011 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3012 internalFormat
, format
,
3015 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
3016 _mesa_init_teximage_fields(ctx
, texImage
,
3017 width
, height
, depth
,
3018 border
, internalFormat
, texFormat
);
3020 /* Give the texture to the driver. <pixels> may be null. */
3022 ctx
->Driver
.CompressedTexImage(ctx
, dims
, texImage
,
3026 ctx
->Driver
.TexImage(ctx
, dims
, texImage
, format
,
3027 type
, pixels
, unpack
);
3030 check_gen_mipmap(ctx
, target
, texObj
, level
);
3032 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3034 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3037 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s%uD", func
, dims
);
3041 _mesa_unlock_texture(ctx
, texObj
);
3047 * Called from the API. Note that width includes the border.
3050 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalFormat
,
3051 GLsizei width
, GLint border
, GLenum format
,
3052 GLenum type
, const GLvoid
*pixels
)
3054 GET_CURRENT_CONTEXT(ctx
);
3055 teximage(ctx
, GL_FALSE
, 1, target
, level
, internalFormat
, width
, 1, 1,
3056 border
, format
, type
, 0, pixels
);
3061 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalFormat
,
3062 GLsizei width
, GLsizei height
, GLint border
,
3063 GLenum format
, GLenum type
,
3064 const GLvoid
*pixels
)
3066 GET_CURRENT_CONTEXT(ctx
);
3067 teximage(ctx
, GL_FALSE
, 2, target
, level
, internalFormat
, width
, height
, 1,
3068 border
, format
, type
, 0, pixels
);
3073 * Called by the API or display list executor.
3074 * Note that width and height include the border.
3077 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalFormat
,
3078 GLsizei width
, GLsizei height
, GLsizei depth
,
3079 GLint border
, GLenum format
, GLenum type
,
3080 const GLvoid
*pixels
)
3082 GET_CURRENT_CONTEXT(ctx
);
3083 teximage(ctx
, GL_FALSE
, 3, target
, level
, internalFormat
,
3084 width
, height
, depth
,
3085 border
, format
, type
, 0, pixels
);
3090 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalFormat
,
3091 GLsizei width
, GLsizei height
, GLsizei depth
,
3092 GLint border
, GLenum format
, GLenum type
,
3093 const GLvoid
*pixels
)
3095 _mesa_TexImage3D(target
, level
, (GLint
) internalFormat
, width
, height
,
3096 depth
, border
, format
, type
, pixels
);
3100 #if FEATURE_OES_EGL_image
3102 _mesa_EGLImageTargetTexture2DOES (GLenum target
, GLeglImageOES image
)
3104 struct gl_texture_object
*texObj
;
3105 struct gl_texture_image
*texImage
;
3107 GET_CURRENT_CONTEXT(ctx
);
3108 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3112 valid_target
= ctx
->Extensions
.OES_EGL_image
;
3114 case GL_TEXTURE_EXTERNAL_OES
:
3115 valid_target
= ctx
->Extensions
.OES_EGL_image_external
;
3118 valid_target
= false;
3122 if (!valid_target
) {
3123 _mesa_error(ctx
, GL_INVALID_ENUM
,
3124 "glEGLImageTargetTexture2D(target=%d)", target
);
3128 if (ctx
->NewState
& _NEW_PIXEL
)
3129 _mesa_update_state(ctx
);
3131 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3132 _mesa_lock_texture(ctx
, texObj
);
3134 if (texObj
->Immutable
) {
3135 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3136 "glEGLImageTargetTexture2D(texture is immutable)");
3137 _mesa_unlock_texture(ctx
, texObj
);
3141 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
3143 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glEGLImageTargetTexture2D");
3145 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3147 ctx
->Driver
.EGLImageTargetTexture2D(ctx
, target
,
3148 texObj
, texImage
, image
);
3150 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3152 _mesa_unlock_texture(ctx
, texObj
);
3160 * Implement all the glTexSubImage1/2/3D() functions.
3163 texsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3164 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3165 GLsizei width
, GLsizei height
, GLsizei depth
,
3166 GLenum format
, GLenum type
, const GLvoid
*pixels
)
3168 struct gl_texture_object
*texObj
;
3169 struct gl_texture_image
*texImage
;
3171 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3173 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3174 _mesa_debug(ctx
, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
3176 _mesa_lookup_enum_by_nr(target
), level
,
3177 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3178 _mesa_lookup_enum_by_nr(format
),
3179 _mesa_lookup_enum_by_nr(type
), pixels
);
3181 /* check target (proxies not allowed) */
3182 if (!legal_texsubimage_target(ctx
, dims
, target
)) {
3183 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
3184 dims
, _mesa_lookup_enum_by_nr(target
));
3188 if (ctx
->NewState
& _NEW_PIXEL
)
3189 _mesa_update_state(ctx
);
3191 if (subtexture_error_check(ctx
, dims
, target
, level
, xoffset
, yoffset
, zoffset
,
3192 width
, height
, depth
, format
, type
)) {
3193 return; /* error was detected */
3196 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3198 _mesa_lock_texture(ctx
, texObj
);
3200 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3202 if (subtexture_error_check2(ctx
, dims
, target
, level
,
3203 xoffset
, yoffset
, zoffset
,
3204 width
, height
, depth
,
3205 format
, type
, texImage
)) {
3206 /* error was recorded */
3208 else if (width
> 0 && height
> 0 && depth
> 0) {
3209 /* If we have a border, offset=-1 is legal. Bias by border width. */
3212 if (target
!= GL_TEXTURE_2D_ARRAY
)
3213 zoffset
+= texImage
->Border
;
3216 if (target
!= GL_TEXTURE_1D_ARRAY
)
3217 yoffset
+= texImage
->Border
;
3220 xoffset
+= texImage
->Border
;
3223 ctx
->Driver
.TexSubImage(ctx
, dims
, texImage
,
3224 xoffset
, yoffset
, zoffset
,
3225 width
, height
, depth
,
3226 format
, type
, pixels
, &ctx
->Unpack
);
3228 check_gen_mipmap(ctx
, target
, texObj
, level
);
3230 ctx
->NewState
|= _NEW_TEXTURE
;
3233 _mesa_unlock_texture(ctx
, texObj
);
3238 _mesa_TexSubImage1D( GLenum target
, GLint level
,
3239 GLint xoffset
, GLsizei width
,
3240 GLenum format
, GLenum type
,
3241 const GLvoid
*pixels
)
3243 GET_CURRENT_CONTEXT(ctx
);
3244 texsubimage(ctx
, 1, target
, level
,
3247 format
, type
, pixels
);
3252 _mesa_TexSubImage2D( GLenum target
, GLint level
,
3253 GLint xoffset
, GLint yoffset
,
3254 GLsizei width
, GLsizei height
,
3255 GLenum format
, GLenum type
,
3256 const GLvoid
*pixels
)
3258 GET_CURRENT_CONTEXT(ctx
);
3259 texsubimage(ctx
, 2, target
, level
,
3260 xoffset
, yoffset
, 0,
3262 format
, type
, pixels
);
3268 _mesa_TexSubImage3D( GLenum target
, GLint level
,
3269 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3270 GLsizei width
, GLsizei height
, GLsizei depth
,
3271 GLenum format
, GLenum type
,
3272 const GLvoid
*pixels
)
3274 GET_CURRENT_CONTEXT(ctx
);
3275 texsubimage(ctx
, 3, target
, level
,
3276 xoffset
, yoffset
, zoffset
,
3277 width
, height
, depth
,
3278 format
, type
, pixels
);
3284 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3285 * from. This depends on whether the texture contains color or depth values.
3287 static struct gl_renderbuffer
*
3288 get_copy_tex_image_source(struct gl_context
*ctx
, gl_format texFormat
)
3290 if (_mesa_get_format_bits(texFormat
, GL_DEPTH_BITS
) > 0) {
3291 /* reading from depth/stencil buffer */
3292 return ctx
->ReadBuffer
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
3295 /* copying from color buffer */
3296 return ctx
->ReadBuffer
->_ColorReadBuffer
;
3303 * Implement the glCopyTexImage1/2D() functions.
3306 copyteximage(struct gl_context
*ctx
, GLuint dims
,
3307 GLenum target
, GLint level
, GLenum internalFormat
,
3308 GLint x
, GLint y
, GLsizei width
, GLsizei height
, GLint border
)
3310 struct gl_texture_object
*texObj
;
3311 struct gl_texture_image
*texImage
;
3312 const GLuint face
= _mesa_tex_target_to_face(target
);
3314 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3316 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3317 _mesa_debug(ctx
, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3319 _mesa_lookup_enum_by_nr(target
), level
,
3320 _mesa_lookup_enum_by_nr(internalFormat
),
3321 x
, y
, width
, height
, border
);
3323 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3324 _mesa_update_state(ctx
);
3326 if (copytexture_error_check(ctx
, dims
, target
, level
, internalFormat
,
3327 width
, height
, border
))
3330 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3332 if (border
&& ctx
->Const
.StripTextureBorder
) {
3334 width
-= border
* 2;
3337 height
-= border
* 2;
3342 _mesa_lock_texture(ctx
, texObj
);
3344 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3347 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
3350 /* choose actual hw format */
3351 gl_format texFormat
= _mesa_choose_texture_format(ctx
, texObj
,
3356 if (legal_texture_size(ctx
, texFormat
, width
, height
, 1)) {
3357 GLint srcX
= x
, srcY
= y
, dstX
= 0, dstY
= 0, dstZ
= 0;
3359 /* Free old texture image */
3360 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3362 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, 1,
3363 border
, internalFormat
, texFormat
);
3365 /* Allocate texture memory (no pixel data yet) */
3366 ctx
->Driver
.TexImage(ctx
, dims
, texImage
,
3368 NULL
, &ctx
->Unpack
);
3370 if (_mesa_clip_copytexsubimage(ctx
, &dstX
, &dstY
, &srcX
, &srcY
,
3372 struct gl_renderbuffer
*srcRb
=
3373 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3375 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
, dstX
, dstY
, dstZ
,
3376 srcRb
, srcX
, srcY
, width
, height
);
3379 check_gen_mipmap(ctx
, target
, texObj
, level
);
3381 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3383 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3386 /* probably too large of image */
3387 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
3391 _mesa_unlock_texture(ctx
, texObj
);
3397 _mesa_CopyTexImage1D( GLenum target
, GLint level
,
3398 GLenum internalFormat
,
3400 GLsizei width
, GLint border
)
3402 GET_CURRENT_CONTEXT(ctx
);
3403 copyteximage(ctx
, 1, target
, level
, internalFormat
, x
, y
, width
, 1, border
);
3409 _mesa_CopyTexImage2D( GLenum target
, GLint level
, GLenum internalFormat
,
3410 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
3413 GET_CURRENT_CONTEXT(ctx
);
3414 copyteximage(ctx
, 2, target
, level
, internalFormat
,
3415 x
, y
, width
, height
, border
);
3421 * Implementation for glCopyTexSubImage1/2/3D() functions.
3424 copytexsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3425 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3426 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3428 struct gl_texture_object
*texObj
;
3429 struct gl_texture_image
*texImage
;
3431 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3433 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3434 _mesa_debug(ctx
, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
3436 _mesa_lookup_enum_by_nr(target
),
3437 level
, xoffset
, yoffset
, zoffset
, x
, y
, width
, height
);
3439 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3440 _mesa_update_state(ctx
);
3442 if (copytexsubimage_error_check1(ctx
, dims
, target
, level
))
3445 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3447 _mesa_lock_texture(ctx
, texObj
);
3449 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3451 if (copytexsubimage_error_check2(ctx
, dims
, target
, level
, xoffset
, yoffset
,
3452 zoffset
, width
, height
, texImage
)) {
3453 /* error was recored */
3456 /* If we have a border, offset=-1 is legal. Bias by border width. */
3459 if (target
!= GL_TEXTURE_2D_ARRAY
)
3460 zoffset
+= texImage
->Border
;
3463 if (target
!= GL_TEXTURE_1D_ARRAY
)
3464 yoffset
+= texImage
->Border
;
3467 xoffset
+= texImage
->Border
;
3470 if (_mesa_clip_copytexsubimage(ctx
, &xoffset
, &yoffset
, &x
, &y
,
3472 struct gl_renderbuffer
*srcRb
=
3473 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3475 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
,
3476 xoffset
, yoffset
, zoffset
,
3477 srcRb
, x
, y
, width
, height
);
3479 check_gen_mipmap(ctx
, target
, texObj
, level
);
3481 ctx
->NewState
|= _NEW_TEXTURE
;
3485 _mesa_unlock_texture(ctx
, texObj
);
3490 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
,
3491 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
3493 GET_CURRENT_CONTEXT(ctx
);
3494 copytexsubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, x
, y
, width
, 1);
3500 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
3501 GLint xoffset
, GLint yoffset
,
3502 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3504 GET_CURRENT_CONTEXT(ctx
);
3505 copytexsubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0, x
, y
,
3512 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
3513 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3514 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3516 GET_CURRENT_CONTEXT(ctx
);
3517 copytexsubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
3518 x
, y
, width
, height
);
3524 /**********************************************************************/
3525 /****** Compressed Textures ******/
3526 /**********************************************************************/
3530 * Error checking for glCompressedTexSubImage[123]D().
3531 * \warning There are some bad assumptions here about the size of compressed
3532 * texture tiles (multiple of 4) used to test the validity of the
3533 * offset and size parameters.
3534 * \return error code or GL_NO_ERROR.
3537 compressed_subtexture_error_check(struct gl_context
*ctx
, GLint dimensions
,
3538 GLenum target
, GLint level
,
3539 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3540 GLsizei width
, GLsizei height
, GLsizei depth
,
3541 GLenum format
, GLsizei imageSize
)
3543 GLint expectedSize
, maxLevels
= 0, maxTextureSize
;
3547 if (dimensions
== 1) {
3548 /* 1D compressed textures not allowed */
3549 return GL_INVALID_ENUM
;
3551 else if (dimensions
== 2) {
3552 if (target
== GL_PROXY_TEXTURE_2D
) {
3553 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3555 else if (target
== GL_TEXTURE_2D
) {
3556 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3558 else if (target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
) {
3559 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3560 return GL_INVALID_ENUM
; /*target*/
3561 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3563 else if (_mesa_is_cube_face(target
)) {
3564 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3565 return GL_INVALID_ENUM
; /*target*/
3566 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3569 return GL_INVALID_ENUM
; /*target*/
3572 else if (dimensions
== 3) {
3573 /* 3D compressed textures not allowed */
3574 return GL_INVALID_ENUM
;
3577 maxTextureSize
= 1 << (maxLevels
- 1);
3579 /* this will catch any invalid compressed format token */
3580 if (!_mesa_is_compressed_format(ctx
, format
))
3581 return GL_INVALID_ENUM
;
3583 if (width
< 1 || width
> maxTextureSize
)
3584 return GL_INVALID_VALUE
;
3586 if ((height
< 1 || height
> maxTextureSize
)
3588 return GL_INVALID_VALUE
;
3590 if (level
< 0 || level
>= maxLevels
)
3591 return GL_INVALID_VALUE
;
3594 * do checks which depend on compression block size
3596 get_compressed_block_size(format
, &bw
, &bh
);
3598 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0))
3599 return GL_INVALID_VALUE
;
3601 if ((width
% bw
!= 0) && width
!= 2 && width
!= 1)
3602 return GL_INVALID_VALUE
;
3604 if ((height
% bh
!= 0) && height
!= 2 && height
!= 1)
3605 return GL_INVALID_VALUE
;
3607 expectedSize
= compressed_tex_size(width
, height
, depth
, format
);
3608 if (expectedSize
!= imageSize
)
3609 return GL_INVALID_VALUE
;
3616 * Do second part of glCompressedTexSubImage error checking.
3617 * \return GL_TRUE if error found, GL_FALSE otherwise.
3620 compressed_subtexture_error_check2(struct gl_context
*ctx
, GLuint dims
,
3621 GLsizei width
, GLsizei height
,
3622 GLsizei depth
, GLenum format
,
3623 struct gl_texture_image
*texImage
)
3626 if ((GLint
) format
!= texImage
->InternalFormat
) {
3627 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3628 "glCompressedTexSubImage%uD(format=0x%x)", dims
, format
);
3632 if (compressedteximage_only_format(ctx
, format
)) {
3633 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3634 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)"
3639 if (((width
== 1 || width
== 2) &&
3640 width
!= (GLsizei
) texImage
->Width
) ||
3641 (width
> (GLsizei
) texImage
->Width
)) {
3642 _mesa_error(ctx
, GL_INVALID_VALUE
,
3643 "glCompressedTexSubImage%uD(width=%d)", dims
, width
);
3648 if (((height
== 1 || height
== 2) &&
3649 height
!= (GLsizei
) texImage
->Height
) ||
3650 (height
> (GLsizei
) texImage
->Height
)) {
3651 _mesa_error(ctx
, GL_INVALID_VALUE
,
3652 "glCompressedTexSubImage%uD(height=%d)", dims
, height
);
3658 if (((depth
== 1 || depth
== 2) &&
3659 depth
!= (GLsizei
) texImage
->Depth
) ||
3660 (depth
> (GLsizei
) texImage
->Depth
)) {
3661 _mesa_error(ctx
, GL_INVALID_VALUE
,
3662 "glCompressedTexSubImage%uD(depth=%d)", dims
, depth
);
3672 _mesa_CompressedTexImage1DARB(GLenum target
, GLint level
,
3673 GLenum internalFormat
, GLsizei width
,
3674 GLint border
, GLsizei imageSize
,
3677 GET_CURRENT_CONTEXT(ctx
);
3678 teximage(ctx
, GL_TRUE
, 1, target
, level
, internalFormat
,
3679 width
, 1, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3684 _mesa_CompressedTexImage2DARB(GLenum target
, GLint level
,
3685 GLenum internalFormat
, GLsizei width
,
3686 GLsizei height
, GLint border
, GLsizei imageSize
,
3689 GET_CURRENT_CONTEXT(ctx
);
3690 teximage(ctx
, GL_TRUE
, 2, target
, level
, internalFormat
,
3691 width
, height
, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3696 _mesa_CompressedTexImage3DARB(GLenum target
, GLint level
,
3697 GLenum internalFormat
, GLsizei width
,
3698 GLsizei height
, GLsizei depth
, GLint border
,
3699 GLsizei imageSize
, const GLvoid
*data
)
3701 GET_CURRENT_CONTEXT(ctx
);
3702 teximage(ctx
, GL_TRUE
, 3, target
, level
, internalFormat
,
3703 width
, height
, depth
, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3708 * Common helper for glCompressedTexSubImage1/2/3D().
3711 compressed_tex_sub_image(GLuint dims
, GLenum target
, GLint level
,
3712 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3713 GLsizei width
, GLsizei height
, GLsizei depth
,
3714 GLenum format
, GLsizei imageSize
, const GLvoid
*data
)
3716 struct gl_texture_object
*texObj
;
3717 struct gl_texture_image
*texImage
;
3719 GET_CURRENT_CONTEXT(ctx
);
3720 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3722 error
= compressed_subtexture_error_check(ctx
, dims
, target
, level
,
3723 xoffset
, 0, 0, /* pos */
3724 width
, height
, depth
, /* size */
3727 _mesa_error(ctx
, error
, "glCompressedTexSubImage%uD", dims
);
3731 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3733 _mesa_lock_texture(ctx
, texObj
);
3735 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3738 if (compressed_subtexture_error_check2(ctx
, dims
, width
, height
, depth
,
3739 format
, texImage
)) {
3740 /* error was recorded */
3742 else if (width
> 0 && height
> 0 && depth
> 0) {
3743 ctx
->Driver
.CompressedTexSubImage(ctx
, dims
, texImage
,
3744 xoffset
, yoffset
, zoffset
,
3745 width
, height
, depth
,
3746 format
, imageSize
, data
);
3748 check_gen_mipmap(ctx
, target
, texObj
, level
);
3750 ctx
->NewState
|= _NEW_TEXTURE
;
3753 _mesa_unlock_texture(ctx
, texObj
);
3758 _mesa_CompressedTexSubImage1DARB(GLenum target
, GLint level
, GLint xoffset
,
3759 GLsizei width
, GLenum format
,
3760 GLsizei imageSize
, const GLvoid
*data
)
3762 compressed_tex_sub_image(1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
3763 format
, imageSize
, data
);
3768 _mesa_CompressedTexSubImage2DARB(GLenum target
, GLint level
, GLint xoffset
,
3769 GLint yoffset
, GLsizei width
, GLsizei height
,
3770 GLenum format
, GLsizei imageSize
,
3773 compressed_tex_sub_image(2, target
, level
, xoffset
, yoffset
, 0,
3774 width
, height
, 1, format
, imageSize
, data
);
3779 _mesa_CompressedTexSubImage3DARB(GLenum target
, GLint level
, GLint xoffset
,
3780 GLint yoffset
, GLint zoffset
, GLsizei width
,
3781 GLsizei height
, GLsizei depth
, GLenum format
,
3782 GLsizei imageSize
, const GLvoid
*data
)
3784 compressed_tex_sub_image(3, target
, level
, xoffset
, yoffset
, zoffset
,
3785 width
, height
, depth
, format
, imageSize
, data
);
3789 get_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3791 switch (internalFormat
) {
3793 return MESA_FORMAT_A8
;
3795 return MESA_FORMAT_A16
;
3796 case GL_ALPHA16F_ARB
:
3797 return MESA_FORMAT_ALPHA_FLOAT16
;
3798 case GL_ALPHA32F_ARB
:
3799 return MESA_FORMAT_ALPHA_FLOAT32
;
3800 case GL_ALPHA8I_EXT
:
3801 return MESA_FORMAT_ALPHA_INT8
;
3802 case GL_ALPHA16I_EXT
:
3803 return MESA_FORMAT_ALPHA_INT16
;
3804 case GL_ALPHA32I_EXT
:
3805 return MESA_FORMAT_ALPHA_INT32
;
3806 case GL_ALPHA8UI_EXT
:
3807 return MESA_FORMAT_ALPHA_UINT8
;
3808 case GL_ALPHA16UI_EXT
:
3809 return MESA_FORMAT_ALPHA_UINT16
;
3810 case GL_ALPHA32UI_EXT
:
3811 return MESA_FORMAT_ALPHA_UINT32
;
3813 return MESA_FORMAT_L8
;
3814 case GL_LUMINANCE16
:
3815 return MESA_FORMAT_L16
;
3816 case GL_LUMINANCE16F_ARB
:
3817 return MESA_FORMAT_LUMINANCE_FLOAT16
;
3818 case GL_LUMINANCE32F_ARB
:
3819 return MESA_FORMAT_LUMINANCE_FLOAT32
;
3820 case GL_LUMINANCE8I_EXT
:
3821 return MESA_FORMAT_LUMINANCE_INT8
;
3822 case GL_LUMINANCE16I_EXT
:
3823 return MESA_FORMAT_LUMINANCE_INT16
;
3824 case GL_LUMINANCE32I_EXT
:
3825 return MESA_FORMAT_LUMINANCE_INT32
;
3826 case GL_LUMINANCE8UI_EXT
:
3827 return MESA_FORMAT_LUMINANCE_UINT8
;
3828 case GL_LUMINANCE16UI_EXT
:
3829 return MESA_FORMAT_LUMINANCE_UINT16
;
3830 case GL_LUMINANCE32UI_EXT
:
3831 return MESA_FORMAT_LUMINANCE_UINT32
;
3832 case GL_LUMINANCE8_ALPHA8
:
3833 return MESA_FORMAT_AL88
;
3834 case GL_LUMINANCE16_ALPHA16
:
3835 return MESA_FORMAT_AL1616
;
3836 case GL_LUMINANCE_ALPHA16F_ARB
:
3837 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
;
3838 case GL_LUMINANCE_ALPHA32F_ARB
:
3839 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
;
3840 case GL_LUMINANCE_ALPHA8I_EXT
:
3841 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3842 case GL_LUMINANCE_ALPHA16I_EXT
:
3843 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3844 case GL_LUMINANCE_ALPHA32I_EXT
:
3845 return MESA_FORMAT_LUMINANCE_ALPHA_INT16
;
3846 case GL_LUMINANCE_ALPHA8UI_EXT
:
3847 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8
;
3848 case GL_LUMINANCE_ALPHA16UI_EXT
:
3849 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16
;
3850 case GL_LUMINANCE_ALPHA32UI_EXT
:
3851 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32
;
3853 return MESA_FORMAT_I8
;
3854 case GL_INTENSITY16
:
3855 return MESA_FORMAT_I16
;
3856 case GL_INTENSITY16F_ARB
:
3857 return MESA_FORMAT_INTENSITY_FLOAT16
;
3858 case GL_INTENSITY32F_ARB
:
3859 return MESA_FORMAT_INTENSITY_FLOAT32
;
3860 case GL_INTENSITY8I_EXT
:
3861 return MESA_FORMAT_INTENSITY_INT8
;
3862 case GL_INTENSITY16I_EXT
:
3863 return MESA_FORMAT_INTENSITY_INT16
;
3864 case GL_INTENSITY32I_EXT
:
3865 return MESA_FORMAT_INTENSITY_INT32
;
3866 case GL_INTENSITY8UI_EXT
:
3867 return MESA_FORMAT_INTENSITY_UINT8
;
3868 case GL_INTENSITY16UI_EXT
:
3869 return MESA_FORMAT_INTENSITY_UINT16
;
3870 case GL_INTENSITY32UI_EXT
:
3871 return MESA_FORMAT_INTENSITY_UINT32
;
3873 return MESA_FORMAT_RGBA8888_REV
;
3875 return MESA_FORMAT_RGBA_16
;
3876 case GL_RGBA16F_ARB
:
3877 return MESA_FORMAT_RGBA_FLOAT16
;
3878 case GL_RGBA32F_ARB
:
3879 return MESA_FORMAT_RGBA_FLOAT32
;
3881 return MESA_FORMAT_RGBA_INT8
;
3882 case GL_RGBA16I_EXT
:
3883 return MESA_FORMAT_RGBA_INT16
;
3884 case GL_RGBA32I_EXT
:
3885 return MESA_FORMAT_RGBA_INT32
;
3886 case GL_RGBA8UI_EXT
:
3887 return MESA_FORMAT_RGBA_UINT8
;
3888 case GL_RGBA16UI_EXT
:
3889 return MESA_FORMAT_RGBA_UINT16
;
3890 case GL_RGBA32UI_EXT
:
3891 return MESA_FORMAT_RGBA_UINT32
;
3894 return MESA_FORMAT_GR88
;
3896 return MESA_FORMAT_RG1616
;
3898 return MESA_FORMAT_RG_FLOAT16
;
3900 return MESA_FORMAT_RG_FLOAT32
;
3902 return MESA_FORMAT_RG_INT8
;
3904 return MESA_FORMAT_RG_INT16
;
3906 return MESA_FORMAT_RG_INT32
;
3908 return MESA_FORMAT_RG_UINT8
;
3910 return MESA_FORMAT_RG_UINT16
;
3912 return MESA_FORMAT_RG_UINT32
;
3915 return MESA_FORMAT_R8
;
3917 return MESA_FORMAT_R16
;
3919 return MESA_FORMAT_R_FLOAT16
;
3921 return MESA_FORMAT_R_FLOAT32
;
3923 return MESA_FORMAT_R_INT8
;
3925 return MESA_FORMAT_R_INT16
;
3927 return MESA_FORMAT_R_INT32
;
3929 return MESA_FORMAT_R_UINT8
;
3931 return MESA_FORMAT_R_UINT16
;
3933 return MESA_FORMAT_R_UINT32
;
3936 return MESA_FORMAT_NONE
;
3941 validate_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3943 gl_format format
= get_texbuffer_format(ctx
, internalFormat
);
3946 if (format
== MESA_FORMAT_NONE
)
3947 return MESA_FORMAT_NONE
;
3949 datatype
= _mesa_get_format_datatype(format
);
3950 if (datatype
== GL_FLOAT
&& !ctx
->Extensions
.ARB_texture_float
)
3951 return MESA_FORMAT_NONE
;
3953 if (datatype
== GL_HALF_FLOAT
&& !ctx
->Extensions
.ARB_half_float_pixel
)
3954 return MESA_FORMAT_NONE
;
3956 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make
3957 * any mention of R/RG formats, but they appear in the GL 3.1 core
3960 if (ctx
->Version
<= 30) {
3961 GLenum base_format
= _mesa_get_format_base_format(format
);
3963 if (base_format
== GL_R
|| base_format
== GL_RG
)
3964 return MESA_FORMAT_NONE
;
3970 /** GL_ARB_texture_buffer_object */
3972 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
)
3974 struct gl_texture_object
*texObj
;
3975 struct gl_buffer_object
*bufObj
;
3978 GET_CURRENT_CONTEXT(ctx
);
3979 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3981 if (!(ctx
->Extensions
.ARB_texture_buffer_object
3982 && _mesa_is_desktop_gl(ctx
))) {
3983 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer");
3987 if (target
!= GL_TEXTURE_BUFFER_ARB
) {
3988 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(target)");
3992 format
= validate_texbuffer_format(ctx
, internalFormat
);
3993 if (format
== MESA_FORMAT_NONE
) {
3994 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(internalFormat 0x%x)",
3999 bufObj
= _mesa_lookup_bufferobj(ctx
, buffer
);
4000 if (buffer
&& !bufObj
) {
4001 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer(buffer %u)", buffer
);
4005 texObj
= _mesa_get_current_tex_object(ctx
, target
);
4007 _mesa_lock_texture(ctx
, texObj
);
4009 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, bufObj
);
4010 texObj
->BufferObjectFormat
= internalFormat
;
4011 texObj
->_BufferObjectFormat
= format
;
4013 _mesa_unlock_texture(ctx
, texObj
);