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"
53 * State changes which we care about for glCopyTex[Sub]Image() calls.
54 * In particular, we care about pixel transfer state and buffer state
55 * (such as glReadBuffer to make sure we read from the right renderbuffer).
57 #define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
62 * Return the simple base format for a given internal texture format.
63 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
65 * \param ctx GL context.
66 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
68 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
69 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
71 * This is the format which is used during texture application (i.e. the
72 * texture format and env mode determine the arithmetic used.
75 _mesa_base_tex_format( struct gl_context
*ctx
, GLint internalFormat
)
77 switch (internalFormat
) {
92 case GL_LUMINANCE_ALPHA
:
93 case GL_LUMINANCE4_ALPHA4
:
94 case GL_LUMINANCE6_ALPHA2
:
95 case GL_LUMINANCE8_ALPHA8
:
96 case GL_LUMINANCE12_ALPHA4
:
97 case GL_LUMINANCE12_ALPHA12
:
98 case GL_LUMINANCE16_ALPHA16
:
99 return GL_LUMINANCE_ALPHA
;
130 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
132 if (ctx
->API
!= API_OPENGL
) {
133 switch (internalFormat
) {
141 if (ctx
->Extensions
.ARB_ES2_compatibility
) {
142 switch (internalFormat
) {
150 if (ctx
->Extensions
.ARB_depth_texture
) {
151 switch (internalFormat
) {
152 case GL_DEPTH_COMPONENT
:
153 case GL_DEPTH_COMPONENT16
:
154 case GL_DEPTH_COMPONENT24
:
155 case GL_DEPTH_COMPONENT32
:
156 return GL_DEPTH_COMPONENT
;
162 switch (internalFormat
) {
163 case GL_COMPRESSED_ALPHA
:
165 case GL_COMPRESSED_LUMINANCE
:
167 case GL_COMPRESSED_LUMINANCE_ALPHA
:
168 return GL_LUMINANCE_ALPHA
;
169 case GL_COMPRESSED_INTENSITY
:
171 case GL_COMPRESSED_RGB
:
173 case GL_COMPRESSED_RGBA
:
179 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
) {
180 switch (internalFormat
) {
181 case GL_COMPRESSED_RGB_FXT1_3DFX
:
183 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
190 if (ctx
->Extensions
.EXT_texture_compression_s3tc
) {
191 switch (internalFormat
) {
192 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
194 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
195 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
196 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
203 if (ctx
->Extensions
.S3_s3tc
) {
204 switch (internalFormat
) {
216 if (ctx
->Extensions
.MESA_ycbcr_texture
) {
217 if (internalFormat
== GL_YCBCR_MESA
)
218 return GL_YCBCR_MESA
;
221 if (ctx
->Extensions
.ARB_texture_float
) {
222 switch (internalFormat
) {
223 case GL_ALPHA16F_ARB
:
224 case GL_ALPHA32F_ARB
:
232 case GL_INTENSITY16F_ARB
:
233 case GL_INTENSITY32F_ARB
:
235 case GL_LUMINANCE16F_ARB
:
236 case GL_LUMINANCE32F_ARB
:
238 case GL_LUMINANCE_ALPHA16F_ARB
:
239 case GL_LUMINANCE_ALPHA32F_ARB
:
240 return GL_LUMINANCE_ALPHA
;
246 if (ctx
->Extensions
.ATI_envmap_bumpmap
) {
247 switch (internalFormat
) {
256 if (ctx
->Extensions
.EXT_texture_snorm
) {
257 switch (internalFormat
) {
272 case GL_RGBA16_SNORM
:
275 case GL_ALPHA8_SNORM
:
276 case GL_ALPHA16_SNORM
:
278 case GL_LUMINANCE_SNORM
:
279 case GL_LUMINANCE8_SNORM
:
280 case GL_LUMINANCE16_SNORM
:
282 case GL_LUMINANCE_ALPHA_SNORM
:
283 case GL_LUMINANCE8_ALPHA8_SNORM
:
284 case GL_LUMINANCE16_ALPHA16_SNORM
:
285 return GL_LUMINANCE_ALPHA
;
286 case GL_INTENSITY_SNORM
:
287 case GL_INTENSITY8_SNORM
:
288 case GL_INTENSITY16_SNORM
:
295 if (ctx
->Extensions
.EXT_packed_depth_stencil
) {
296 switch (internalFormat
) {
297 case GL_DEPTH_STENCIL_EXT
:
298 case GL_DEPTH24_STENCIL8_EXT
:
299 return GL_DEPTH_STENCIL_EXT
;
305 #if FEATURE_EXT_texture_sRGB
306 if (ctx
->Extensions
.EXT_texture_sRGB
) {
307 switch (internalFormat
) {
310 case GL_COMPRESSED_SRGB_EXT
:
311 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
313 case GL_SRGB_ALPHA_EXT
:
314 case GL_SRGB8_ALPHA8_EXT
:
315 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
316 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
317 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
318 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
320 case GL_SLUMINANCE_ALPHA_EXT
:
321 case GL_SLUMINANCE8_ALPHA8_EXT
:
322 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
323 return GL_LUMINANCE_ALPHA
;
324 case GL_SLUMINANCE_EXT
:
325 case GL_SLUMINANCE8_EXT
:
326 case GL_COMPRESSED_SLUMINANCE_EXT
:
332 #endif /* FEATURE_EXT_texture_sRGB */
334 if (ctx
->VersionMajor
>= 3 ||
335 ctx
->Extensions
.EXT_texture_integer
) {
336 switch (internalFormat
) {
338 case GL_RGBA16UI_EXT
:
339 case GL_RGBA32UI_EXT
:
355 if (ctx
->Extensions
.EXT_texture_integer
) {
356 switch (internalFormat
) {
357 case GL_ALPHA8UI_EXT
:
358 case GL_ALPHA16UI_EXT
:
359 case GL_ALPHA32UI_EXT
:
361 case GL_ALPHA16I_EXT
:
362 case GL_ALPHA32I_EXT
:
364 case GL_INTENSITY8UI_EXT
:
365 case GL_INTENSITY16UI_EXT
:
366 case GL_INTENSITY32UI_EXT
:
367 case GL_INTENSITY8I_EXT
:
368 case GL_INTENSITY16I_EXT
:
369 case GL_INTENSITY32I_EXT
:
371 case GL_LUMINANCE8UI_EXT
:
372 case GL_LUMINANCE16UI_EXT
:
373 case GL_LUMINANCE32UI_EXT
:
374 case GL_LUMINANCE8I_EXT
:
375 case GL_LUMINANCE16I_EXT
:
376 case GL_LUMINANCE32I_EXT
:
378 case GL_LUMINANCE_ALPHA8UI_EXT
:
379 case GL_LUMINANCE_ALPHA16UI_EXT
:
380 case GL_LUMINANCE_ALPHA32UI_EXT
:
381 case GL_LUMINANCE_ALPHA8I_EXT
:
382 case GL_LUMINANCE_ALPHA16I_EXT
:
383 case GL_LUMINANCE_ALPHA32I_EXT
:
384 return GL_LUMINANCE_ALPHA
;
390 if (ctx
->Extensions
.ARB_texture_rg
) {
391 switch (internalFormat
) {
393 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
395 if (!ctx
->Extensions
.ARB_half_float_pixel
)
399 if (!ctx
->Extensions
.ARB_texture_float
)
408 if (ctx
->VersionMajor
< 3 && !ctx
->Extensions
.EXT_texture_integer
)
414 case GL_COMPRESSED_RED
:
418 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
420 if (!ctx
->Extensions
.ARB_half_float_pixel
)
424 if (!ctx
->Extensions
.ARB_texture_float
)
433 if (ctx
->VersionMajor
< 3 && !ctx
->Extensions
.EXT_texture_integer
)
439 case GL_COMPRESSED_RG
:
446 if (ctx
->Extensions
.EXT_texture_shared_exponent
) {
447 switch (internalFormat
) {
455 if (ctx
->Extensions
.EXT_packed_float
) {
456 switch (internalFormat
) {
457 case GL_R11F_G11F_B10F_EXT
:
464 if (ctx
->Extensions
.ARB_depth_buffer_float
) {
465 switch (internalFormat
) {
466 case GL_DEPTH_COMPONENT32F
:
467 return GL_DEPTH_COMPONENT
;
468 case GL_DEPTH32F_STENCIL8
:
469 return GL_DEPTH_STENCIL
;
475 if (ctx
->Extensions
.ARB_texture_compression_rgtc
) {
476 switch (internalFormat
) {
477 case GL_COMPRESSED_RED_RGTC1
:
478 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
480 case GL_COMPRESSED_RG_RGTC2
:
481 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
488 if (ctx
->Extensions
.EXT_texture_compression_latc
) {
489 switch (internalFormat
) {
490 case GL_COMPRESSED_LUMINANCE_LATC1_EXT
:
491 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT
:
493 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
:
494 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT
:
495 return GL_LUMINANCE_ALPHA
;
501 if (ctx
->Extensions
.ATI_texture_compression_3dc
) {
502 switch (internalFormat
) {
503 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
504 return GL_LUMINANCE_ALPHA
;
510 if (ctx
->Extensions
.OES_compressed_ETC1_RGB8_texture
) {
511 switch (internalFormat
) {
512 case GL_ETC1_RGB8_OES
:
519 if (ctx
->API
== API_OPENGLES
) {
520 switch (internalFormat
) {
521 case GL_PALETTE4_RGB8_OES
:
522 case GL_PALETTE4_R5_G6_B5_OES
:
523 case GL_PALETTE8_RGB8_OES
:
524 case GL_PALETTE8_R5_G6_B5_OES
:
526 case GL_PALETTE4_RGBA8_OES
:
527 case GL_PALETTE8_RGB5_A1_OES
:
528 case GL_PALETTE4_RGBA4_OES
:
529 case GL_PALETTE4_RGB5_A1_OES
:
530 case GL_PALETTE8_RGBA8_OES
:
531 case GL_PALETTE8_RGBA4_OES
:
538 return -1; /* error */
543 * Is the given texture format a generic compressed format?
546 is_generic_compressed_format(GLenum format
)
549 case GL_COMPRESSED_RED
:
550 case GL_COMPRESSED_RG
:
551 case GL_COMPRESSED_RGB
:
552 case GL_COMPRESSED_RGBA
:
553 case GL_COMPRESSED_ALPHA
:
554 case GL_COMPRESSED_LUMINANCE
:
555 case GL_COMPRESSED_LUMINANCE_ALPHA
:
556 case GL_COMPRESSED_INTENSITY
:
557 case GL_COMPRESSED_SRGB
:
558 case GL_COMPRESSED_SRGB_ALPHA
:
559 case GL_COMPRESSED_SLUMINANCE
:
560 case GL_COMPRESSED_SLUMINANCE_ALPHA
:
569 * For cube map faces, return a face index in [0,5].
570 * For other targets return 0;
573 _mesa_tex_target_to_face(GLenum target
)
575 if (_mesa_is_cube_face(target
))
576 return (GLuint
) target
- (GLuint
) GL_TEXTURE_CUBE_MAP_POSITIVE_X
;
584 * Install gl_texture_image in a gl_texture_object according to the target
585 * and level parameters.
587 * \param tObj texture object.
588 * \param target texture target.
589 * \param level image level.
590 * \param texImage texture image.
593 set_tex_image(struct gl_texture_object
*tObj
,
594 GLenum target
, GLint level
,
595 struct gl_texture_image
*texImage
)
597 const GLuint face
= _mesa_tex_target_to_face(target
);
601 if (target
== GL_TEXTURE_RECTANGLE_NV
|| target
== GL_TEXTURE_EXTERNAL_OES
)
604 tObj
->Image
[face
][level
] = texImage
;
606 /* Set the 'back' pointer */
607 texImage
->TexObject
= tObj
;
608 texImage
->Level
= level
;
609 texImage
->Face
= face
;
614 * Allocate a texture image structure.
616 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
619 * \return a pointer to gl_texture_image struct with all fields initialized to
622 struct gl_texture_image
*
623 _mesa_new_texture_image( struct gl_context
*ctx
)
626 return CALLOC_STRUCT(gl_texture_image
);
631 * Free a gl_texture_image and associated data.
632 * This function is a fallback called via ctx->Driver.DeleteTextureImage().
634 * \param texImage texture image.
636 * Free the texture image structure and the associated image data.
639 _mesa_delete_texture_image(struct gl_context
*ctx
,
640 struct gl_texture_image
*texImage
)
642 /* Free texImage->Data and/or any other driver-specific texture
645 ASSERT(ctx
->Driver
.FreeTextureImageBuffer
);
646 ctx
->Driver
.FreeTextureImageBuffer( ctx
, texImage
);
652 * Test if a target is a proxy target.
654 * \param target texture target.
656 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
659 _mesa_is_proxy_texture(GLenum target
)
662 * NUM_TEXTURE_TARGETS should match number of terms below, except there's no
663 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
665 assert(NUM_TEXTURE_TARGETS
== 7 + 2);
667 return (target
== GL_PROXY_TEXTURE_1D
||
668 target
== GL_PROXY_TEXTURE_2D
||
669 target
== GL_PROXY_TEXTURE_3D
||
670 target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
671 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
||
672 target
== GL_PROXY_TEXTURE_1D_ARRAY_EXT
||
673 target
== GL_PROXY_TEXTURE_2D_ARRAY_EXT
);
678 * Return the proxy target which corresponds to the given texture target
681 get_proxy_target(GLenum target
)
685 case GL_PROXY_TEXTURE_1D
:
686 return GL_PROXY_TEXTURE_1D
;
688 case GL_PROXY_TEXTURE_2D
:
689 return GL_PROXY_TEXTURE_2D
;
691 case GL_PROXY_TEXTURE_3D
:
692 return GL_PROXY_TEXTURE_3D
;
693 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
694 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
695 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
696 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
697 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
698 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
699 case GL_TEXTURE_CUBE_MAP_ARB
:
700 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
701 return GL_PROXY_TEXTURE_CUBE_MAP_ARB
;
702 case GL_TEXTURE_RECTANGLE_NV
:
703 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
704 return GL_PROXY_TEXTURE_RECTANGLE_NV
;
705 case GL_TEXTURE_1D_ARRAY_EXT
:
706 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
707 return GL_PROXY_TEXTURE_1D_ARRAY_EXT
;
708 case GL_TEXTURE_2D_ARRAY_EXT
:
709 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
710 return GL_PROXY_TEXTURE_2D_ARRAY_EXT
;
712 _mesa_problem(NULL
, "unexpected target in get_proxy_target()");
719 * Get the texture object that corresponds to the target of the given
720 * texture unit. The target should have already been checked for validity.
722 * \param ctx GL context.
723 * \param texUnit texture unit.
724 * \param target texture target.
726 * \return pointer to the texture object on success, or NULL on failure.
728 struct gl_texture_object
*
729 _mesa_select_tex_object(struct gl_context
*ctx
,
730 const struct gl_texture_unit
*texUnit
,
733 const GLboolean arrayTex
= (ctx
->Extensions
.MESA_texture_array
||
734 ctx
->Extensions
.EXT_texture_array
);
738 return texUnit
->CurrentTex
[TEXTURE_1D_INDEX
];
739 case GL_PROXY_TEXTURE_1D
:
740 return ctx
->Texture
.ProxyTex
[TEXTURE_1D_INDEX
];
742 return texUnit
->CurrentTex
[TEXTURE_2D_INDEX
];
743 case GL_PROXY_TEXTURE_2D
:
744 return ctx
->Texture
.ProxyTex
[TEXTURE_2D_INDEX
];
746 return texUnit
->CurrentTex
[TEXTURE_3D_INDEX
];
747 case GL_PROXY_TEXTURE_3D
:
748 return ctx
->Texture
.ProxyTex
[TEXTURE_3D_INDEX
];
749 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
750 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
751 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
752 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
753 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
754 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
755 case GL_TEXTURE_CUBE_MAP_ARB
:
756 return ctx
->Extensions
.ARB_texture_cube_map
757 ? texUnit
->CurrentTex
[TEXTURE_CUBE_INDEX
] : NULL
;
758 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
759 return ctx
->Extensions
.ARB_texture_cube_map
760 ? ctx
->Texture
.ProxyTex
[TEXTURE_CUBE_INDEX
] : NULL
;
761 case GL_TEXTURE_RECTANGLE_NV
:
762 return ctx
->Extensions
.NV_texture_rectangle
763 ? texUnit
->CurrentTex
[TEXTURE_RECT_INDEX
] : NULL
;
764 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
765 return ctx
->Extensions
.NV_texture_rectangle
766 ? ctx
->Texture
.ProxyTex
[TEXTURE_RECT_INDEX
] : NULL
;
767 case GL_TEXTURE_1D_ARRAY_EXT
:
768 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
769 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
770 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
771 case GL_TEXTURE_2D_ARRAY_EXT
:
772 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
773 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
774 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
775 case GL_TEXTURE_BUFFER
:
776 return ctx
->Extensions
.ARB_texture_buffer_object
777 ? texUnit
->CurrentTex
[TEXTURE_BUFFER_INDEX
] : NULL
;
778 case GL_TEXTURE_EXTERNAL_OES
:
779 return ctx
->Extensions
.OES_EGL_image_external
780 ? texUnit
->CurrentTex
[TEXTURE_EXTERNAL_INDEX
] : NULL
;
782 _mesa_problem(NULL
, "bad target in _mesa_select_tex_object()");
789 * Return pointer to texture object for given target on current texture unit.
791 struct gl_texture_object
*
792 _mesa_get_current_tex_object(struct gl_context
*ctx
, GLenum target
)
794 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
795 return _mesa_select_tex_object(ctx
, texUnit
, target
);
800 * Get a texture image pointer from a texture object, given a texture
801 * target and mipmap level. The target and level parameters should
802 * have already been error-checked.
804 * \param ctx GL context.
805 * \param texObj texture unit.
806 * \param target texture target.
807 * \param level image level.
809 * \return pointer to the texture image structure, or NULL on failure.
811 struct gl_texture_image
*
812 _mesa_select_tex_image(struct gl_context
*ctx
,
813 const struct gl_texture_object
*texObj
,
814 GLenum target
, GLint level
)
816 const GLuint face
= _mesa_tex_target_to_face(target
);
820 ASSERT(level
< MAX_TEXTURE_LEVELS
);
822 return texObj
->Image
[face
][level
];
827 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
828 * it and install it. Only return NULL if passed a bad parameter or run
831 struct gl_texture_image
*
832 _mesa_get_tex_image(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
833 GLenum target
, GLint level
)
835 struct gl_texture_image
*texImage
;
840 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
842 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
844 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "texture image allocation");
848 set_tex_image(texObj
, target
, level
, texImage
);
856 * Return pointer to the specified proxy texture image.
857 * Note that proxy textures are per-context, not per-texture unit.
858 * \return pointer to texture image or NULL if invalid target, invalid
859 * level, or out of memory.
861 struct gl_texture_image
*
862 _mesa_get_proxy_tex_image(struct gl_context
*ctx
, GLenum target
, GLint level
)
864 struct gl_texture_image
*texImage
;
871 case GL_PROXY_TEXTURE_1D
:
872 if (level
>= ctx
->Const
.MaxTextureLevels
)
874 texIndex
= TEXTURE_1D_INDEX
;
876 case GL_PROXY_TEXTURE_2D
:
877 if (level
>= ctx
->Const
.MaxTextureLevels
)
879 texIndex
= TEXTURE_2D_INDEX
;
881 case GL_PROXY_TEXTURE_3D
:
882 if (level
>= ctx
->Const
.Max3DTextureLevels
)
884 texIndex
= TEXTURE_3D_INDEX
;
886 case GL_PROXY_TEXTURE_CUBE_MAP
:
887 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
889 texIndex
= TEXTURE_CUBE_INDEX
;
891 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
894 texIndex
= TEXTURE_RECT_INDEX
;
896 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
897 if (level
>= ctx
->Const
.MaxTextureLevels
)
899 texIndex
= TEXTURE_1D_ARRAY_INDEX
;
901 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
902 if (level
>= ctx
->Const
.MaxTextureLevels
)
904 texIndex
= TEXTURE_2D_ARRAY_INDEX
;
910 texImage
= ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
];
912 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
914 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "proxy texture allocation");
917 ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
] = texImage
;
918 /* Set the 'back' pointer */
919 texImage
->TexObject
= ctx
->Texture
.ProxyTex
[texIndex
];
926 * Get the maximum number of allowed mipmap levels.
928 * \param ctx GL context.
929 * \param target texture target.
931 * \return the maximum number of allowed mipmap levels for the given
932 * texture target, or zero if passed a bad target.
937 _mesa_max_texture_levels(struct gl_context
*ctx
, GLenum target
)
941 case GL_PROXY_TEXTURE_1D
:
943 case GL_PROXY_TEXTURE_2D
:
944 return ctx
->Const
.MaxTextureLevels
;
946 case GL_PROXY_TEXTURE_3D
:
947 return ctx
->Const
.Max3DTextureLevels
;
948 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
949 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
950 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
951 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
952 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
953 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
954 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
955 return ctx
->Extensions
.ARB_texture_cube_map
956 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
957 case GL_TEXTURE_RECTANGLE_NV
:
958 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
959 return ctx
->Extensions
.NV_texture_rectangle
? 1 : 0;
960 case GL_TEXTURE_1D_ARRAY_EXT
:
961 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
962 case GL_TEXTURE_2D_ARRAY_EXT
:
963 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
964 return (ctx
->Extensions
.MESA_texture_array
||
965 ctx
->Extensions
.EXT_texture_array
)
966 ? ctx
->Const
.MaxTextureLevels
: 0;
967 case GL_TEXTURE_BUFFER
:
968 case GL_TEXTURE_EXTERNAL_OES
:
971 return 0; /* bad target */
977 * Return number of dimensions per mipmap level for the given texture target.
980 _mesa_get_texture_dimensions(GLenum target
)
984 case GL_PROXY_TEXTURE_1D
:
987 case GL_TEXTURE_RECTANGLE
:
988 case GL_TEXTURE_CUBE_MAP
:
989 case GL_PROXY_TEXTURE_2D
:
990 case GL_PROXY_TEXTURE_RECTANGLE
:
991 case GL_PROXY_TEXTURE_CUBE_MAP
:
992 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
993 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
994 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
995 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
996 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
997 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
998 case GL_TEXTURE_1D_ARRAY
:
999 case GL_PROXY_TEXTURE_1D_ARRAY
:
1000 case GL_TEXTURE_EXTERNAL_OES
:
1003 case GL_PROXY_TEXTURE_3D
:
1004 case GL_TEXTURE_2D_ARRAY
:
1005 case GL_PROXY_TEXTURE_2D_ARRAY
:
1007 case GL_TEXTURE_BUFFER
:
1010 _mesa_problem(NULL
, "invalid target 0x%x in get_texture_dimensions()",
1019 #if 000 /* not used anymore */
1021 * glTexImage[123]D can accept a NULL image pointer. In this case we
1022 * create a texture image with unspecified image contents per the OpenGL
1026 make_null_texture(GLint width
, GLint height
, GLint depth
, GLenum format
)
1028 const GLint components
= _mesa_components_in_format(format
);
1029 const GLint numPixels
= width
* height
* depth
;
1030 GLubyte
*data
= (GLubyte
*) MALLOC(numPixels
* components
* sizeof(GLubyte
));
1034 * Let's see if anyone finds this. If glTexImage2D() is called with
1035 * a NULL image pointer then load the texture image with something
1036 * interesting instead of leaving it indeterminate.
1039 static const char message
[8][32] = {
1040 " X X XXXXX XXX X ",
1041 " XX XX X X X X X ",
1043 " X X XXXX XXX XXXXX ",
1046 " X X XXXXX XXX X X ",
1050 GLubyte
*imgPtr
= data
;
1052 for (h
= 0; h
< depth
; h
++) {
1053 for (i
= 0; i
< height
; i
++) {
1054 GLint srcRow
= 7 - (i
% 8);
1055 for (j
= 0; j
< width
; j
++) {
1056 GLint srcCol
= j
% 32;
1057 GLubyte texel
= (message
[srcRow
][srcCol
]=='X') ? 255 : 70;
1058 for (k
= 0; k
< components
; k
++) {
1074 * Set the size and format-related fields of a gl_texture_image struct
1075 * to zero. This is used when a proxy texture test fails.
1078 clear_teximage_fields(struct gl_texture_image
*img
)
1081 img
->_BaseFormat
= 0;
1082 img
->InternalFormat
= 0;
1091 img
->HeightLog2
= 0;
1093 img
->TexFormat
= MESA_FORMAT_NONE
;
1098 * Initialize basic fields of the gl_texture_image struct.
1100 * \param ctx GL context.
1101 * \param img texture image structure to be initialized.
1102 * \param width image width.
1103 * \param height image height.
1104 * \param depth image depth.
1105 * \param border image border.
1106 * \param internalFormat internal format.
1107 * \param format the actual hardware format (one of MESA_FORMAT_*)
1109 * Fills in the fields of \p img with the given information.
1110 * Note: width, height and depth include the border.
1113 _mesa_init_teximage_fields(struct gl_context
*ctx
,
1114 struct gl_texture_image
*img
,
1115 GLsizei width
, GLsizei height
, GLsizei depth
,
1116 GLint border
, GLenum internalFormat
,
1122 ASSERT(height
>= 0);
1125 target
= img
->TexObject
->Target
;
1126 img
->_BaseFormat
= _mesa_base_tex_format( ctx
, internalFormat
);
1127 ASSERT(img
->_BaseFormat
> 0);
1128 img
->InternalFormat
= internalFormat
;
1129 img
->Border
= border
;
1131 img
->Height
= height
;
1134 img
->Width2
= width
- 2 * border
; /* == 1 << img->WidthLog2; */
1135 img
->WidthLog2
= _mesa_logbase2(img
->Width2
);
1139 case GL_TEXTURE_BUFFER
:
1140 case GL_PROXY_TEXTURE_1D
:
1145 img
->HeightLog2
= 0;
1152 case GL_TEXTURE_1D_ARRAY
:
1153 case GL_PROXY_TEXTURE_1D_ARRAY
:
1154 img
->Height2
= height
; /* no border */
1155 img
->HeightLog2
= 0; /* not used */
1163 case GL_TEXTURE_RECTANGLE
:
1164 case GL_TEXTURE_CUBE_MAP
:
1165 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1166 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1167 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1168 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1169 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1170 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1171 case GL_TEXTURE_EXTERNAL_OES
:
1172 case GL_PROXY_TEXTURE_2D
:
1173 case GL_PROXY_TEXTURE_RECTANGLE
:
1174 case GL_PROXY_TEXTURE_CUBE_MAP
:
1175 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1176 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1183 case GL_TEXTURE_2D_ARRAY
:
1184 case GL_PROXY_TEXTURE_2D_ARRAY
:
1185 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1186 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1187 img
->Depth2
= depth
; /* no border */
1188 img
->DepthLog2
= 0; /* not used */
1191 case GL_PROXY_TEXTURE_3D
:
1192 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1193 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1194 img
->Depth2
= depth
- 2 * border
; /* == 1 << img->DepthLog2; */
1195 img
->DepthLog2
= _mesa_logbase2(img
->Depth2
);
1198 _mesa_problem(NULL
, "invalid target 0x%x in _mesa_init_teximage_fields()",
1202 img
->MaxLog2
= MAX2(img
->WidthLog2
, img
->HeightLog2
);
1203 img
->TexFormat
= format
;
1208 * Free and clear fields of the gl_texture_image struct.
1210 * \param ctx GL context.
1211 * \param texImage texture image structure to be cleared.
1213 * After the call, \p texImage will have no data associated with it. Its
1214 * fields are cleared so that its parent object will test incomplete.
1217 _mesa_clear_texture_image(struct gl_context
*ctx
,
1218 struct gl_texture_image
*texImage
)
1220 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
1221 clear_teximage_fields(texImage
);
1226 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1227 * level, width, height and depth against the ctx->Const limits for textures.
1229 * A hardware driver might override this function if, for example, the
1230 * max 3D texture size is 512x512x64 (i.e. not a cube).
1232 * Note that width, height, depth == 0 is not an error. However, a
1233 * texture with zero width/height/depth will be considered "incomplete"
1234 * and texturing will effectively be disabled.
1236 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1237 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1238 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1239 * \param level as passed to glTexImage
1240 * \param internalFormat as passed to glTexImage
1241 * \param format as passed to glTexImage
1242 * \param type as passed to glTexImage
1243 * \param width as passed to glTexImage
1244 * \param height as passed to glTexImage
1245 * \param depth as passed to glTexImage
1246 * \param border as passed to glTexImage
1247 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1250 _mesa_test_proxy_teximage(struct gl_context
*ctx
, GLenum target
, GLint level
,
1251 GLint internalFormat
, GLenum format
, GLenum type
,
1252 GLint width
, GLint height
, GLint depth
, GLint border
)
1256 (void) internalFormat
;
1261 case GL_PROXY_TEXTURE_1D
:
1262 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1263 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1265 if (level
>= ctx
->Const
.MaxTextureLevels
)
1267 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1268 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1273 case GL_PROXY_TEXTURE_2D
:
1274 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1275 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1277 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1279 if (level
>= ctx
->Const
.MaxTextureLevels
)
1281 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1282 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1284 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1289 case GL_PROXY_TEXTURE_3D
:
1290 maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
1291 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1293 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1295 if (depth
< 2 * border
|| depth
> 2 * border
+ maxSize
)
1297 if (level
>= ctx
->Const
.Max3DTextureLevels
)
1299 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1300 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1302 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1304 if (depth
> 0 && !_mesa_is_pow_two(depth
- 2 * border
))
1309 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1310 maxSize
= ctx
->Const
.MaxTextureRectSize
;
1311 if (width
< 0 || width
> maxSize
)
1313 if (height
< 0 || height
> maxSize
)
1319 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
1320 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1321 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1323 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1325 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
1327 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1328 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1330 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1335 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1336 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1337 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1339 if (height
< 1 || height
> ctx
->Const
.MaxArrayTextureLayers
)
1341 if (level
>= ctx
->Const
.MaxTextureLevels
)
1343 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1344 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1349 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1350 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1351 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1353 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1355 if (depth
< 1 || depth
> ctx
->Const
.MaxArrayTextureLayers
)
1357 if (level
>= ctx
->Const
.MaxTextureLevels
)
1359 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1360 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1362 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1368 _mesa_problem(ctx
, "Invalid target in _mesa_test_proxy_teximage");
1375 * Check if the memory used by the texture would exceed the driver's limit.
1376 * This lets us support a max 3D texture size of 8K (for example) but
1377 * prevents allocating a full 8K x 8K x 8K texture.
1378 * XXX this could be rolled into the proxy texture size test (above) but
1379 * we don't have the actual texture internal format at that point.
1382 legal_texture_size(struct gl_context
*ctx
, gl_format format
,
1383 GLint width
, GLint height
, GLint depth
)
1385 uint64_t bytes
= _mesa_format_image_size64(format
, width
, height
, depth
);
1386 uint64_t mbytes
= bytes
/ (1024 * 1024); /* convert to MB */
1387 return mbytes
<= (uint64_t) ctx
->Const
.MaxTextureMbytes
;
1392 * Return true if the format is only valid for glCompressedTexImage.
1395 compressedteximage_only_format(const struct gl_context
*ctx
, GLenum format
)
1398 case GL_ETC1_RGB8_OES
:
1407 * Helper function to determine whether a target and specific compression
1408 * format are supported.
1411 target_can_be_compressed(const struct gl_context
*ctx
, GLenum target
,
1414 (void) intFormat
; /* not used yet */
1418 case GL_PROXY_TEXTURE_2D
:
1419 return GL_TRUE
; /* true for any compressed format so far */
1420 case GL_PROXY_TEXTURE_CUBE_MAP
:
1421 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1422 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1423 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1424 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1425 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1426 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1427 return ctx
->Extensions
.ARB_texture_cube_map
;
1428 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1429 case GL_TEXTURE_2D_ARRAY_EXT
:
1430 return (ctx
->Extensions
.MESA_texture_array
||
1431 ctx
->Extensions
.EXT_texture_array
);
1439 * Check if the given texture target value is legal for a
1440 * glTexImage1/2/3D call.
1443 legal_teximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1449 case GL_PROXY_TEXTURE_1D
:
1457 case GL_PROXY_TEXTURE_2D
:
1459 case GL_PROXY_TEXTURE_CUBE_MAP
:
1460 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1461 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1462 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1463 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1464 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1465 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1466 return ctx
->Extensions
.ARB_texture_cube_map
;
1467 case GL_TEXTURE_RECTANGLE_NV
:
1468 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1469 return ctx
->Extensions
.NV_texture_rectangle
;
1470 case GL_TEXTURE_1D_ARRAY_EXT
:
1471 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1472 return (ctx
->Extensions
.MESA_texture_array
||
1473 ctx
->Extensions
.EXT_texture_array
);
1480 case GL_PROXY_TEXTURE_3D
:
1482 case GL_TEXTURE_2D_ARRAY_EXT
:
1483 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1484 return (ctx
->Extensions
.MESA_texture_array
||
1485 ctx
->Extensions
.EXT_texture_array
);
1490 _mesa_problem(ctx
, "invalid dims=%u in legal_teximage_target()", dims
);
1497 * Check if the given texture target value is legal for a
1498 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1499 * The difference compared to legal_teximage_target() above is that
1500 * proxy targets are not supported.
1503 legal_texsubimage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1507 return target
== GL_TEXTURE_1D
;
1512 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1513 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1514 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1515 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1516 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1517 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1518 return ctx
->Extensions
.ARB_texture_cube_map
;
1519 case GL_TEXTURE_RECTANGLE_NV
:
1520 return ctx
->Extensions
.NV_texture_rectangle
;
1521 case GL_TEXTURE_1D_ARRAY_EXT
:
1522 return (ctx
->Extensions
.MESA_texture_array
||
1523 ctx
->Extensions
.EXT_texture_array
);
1531 case GL_TEXTURE_2D_ARRAY_EXT
:
1532 return (ctx
->Extensions
.MESA_texture_array
||
1533 ctx
->Extensions
.EXT_texture_array
);
1538 _mesa_problem(ctx
, "invalid dims=%u in legal_texsubimage_target()",
1546 * Helper function to determine if a texture object is mutable (in terms
1547 * of GL_ARB_texture_storage).
1550 mutable_tex_object(struct gl_context
*ctx
, GLenum target
)
1552 if (ctx
->Extensions
.ARB_texture_storage
) {
1553 struct gl_texture_object
*texObj
=
1554 _mesa_get_current_tex_object(ctx
, target
);
1555 return !texObj
->Immutable
;
1563 * Test the glTexImage[123]D() parameters for errors.
1565 * \param ctx GL context.
1566 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1567 * \param target texture target given by the user.
1568 * \param level image level given by the user.
1569 * \param internalFormat internal format given by the user.
1570 * \param format pixel data format given by the user.
1571 * \param type pixel data type given by the user.
1572 * \param width image width given by the user.
1573 * \param height image height given by the user.
1574 * \param depth image depth given by the user.
1575 * \param border image border given by the user.
1577 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1579 * Verifies each of the parameters against the constants specified in
1580 * __struct gl_contextRec::Const and the supported extensions, and according
1581 * to the OpenGL specification.
1584 texture_error_check( struct gl_context
*ctx
,
1585 GLuint dimensions
, GLenum target
,
1586 GLint level
, GLint internalFormat
,
1587 GLenum format
, GLenum type
,
1588 GLint width
, GLint height
,
1589 GLint depth
, GLint border
)
1591 const GLenum proxyTarget
= get_proxy_target(target
);
1592 const GLboolean isProxy
= target
== proxyTarget
;
1593 GLboolean sizeOK
= GL_TRUE
;
1594 GLboolean colorFormat
;
1597 /* Even though there are no color-index textures, we still have to support
1598 * uploading color-index data and remapping it to RGB via the
1599 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1601 const GLboolean indexFormat
= (format
== GL_COLOR_INDEX
);
1603 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1604 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1606 _mesa_error(ctx
, GL_INVALID_VALUE
,
1607 "glTexImage%dD(level=%d)", dimensions
, level
);
1613 if (border
< 0 || border
> 1 ||
1614 ((target
== GL_TEXTURE_RECTANGLE_NV
||
1615 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1617 _mesa_error(ctx
, GL_INVALID_VALUE
,
1618 "glTexImage%dD(border=%d)", dimensions
, border
);
1623 if (width
< 0 || height
< 0 || depth
< 0) {
1625 _mesa_error(ctx
, GL_INVALID_VALUE
,
1626 "glTexImage%dD(width, height or depth < 0)", dimensions
);
1631 /* Do this simple check before calling the TestProxyTexImage() function */
1632 if (proxyTarget
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
) {
1633 sizeOK
= (width
== height
);
1637 * Use the proxy texture driver hook to see if the size/level/etc are
1640 sizeOK
= sizeOK
&& ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
1641 internalFormat
, format
,
1642 type
, width
, height
,
1646 _mesa_error(ctx
, GL_INVALID_VALUE
,
1647 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1648 dimensions
, level
, width
, height
, depth
);
1653 /* Check internalFormat */
1654 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1656 _mesa_error(ctx
, GL_INVALID_VALUE
,
1657 "glTexImage%dD(internalFormat=%s)",
1658 dimensions
, _mesa_lookup_enum_by_nr(internalFormat
));
1663 /* Check incoming image format and type */
1664 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
1665 if (err
!= GL_NO_ERROR
) {
1667 _mesa_error(ctx
, err
,
1668 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1669 dimensions
, format
, type
);
1674 /* make sure internal format and format basically agree */
1675 colorFormat
= _mesa_is_color_format(format
);
1676 if ((_mesa_is_color_format(internalFormat
) && !colorFormat
&& !indexFormat
) ||
1677 (_mesa_is_depth_format(internalFormat
) != _mesa_is_depth_format(format
)) ||
1678 (_mesa_is_ycbcr_format(internalFormat
) != _mesa_is_ycbcr_format(format
)) ||
1679 (_mesa_is_depthstencil_format(internalFormat
) != _mesa_is_depthstencil_format(format
)) ||
1680 (_mesa_is_dudv_format(internalFormat
) != _mesa_is_dudv_format(format
))) {
1682 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1683 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1684 dimensions
, internalFormat
, format
);
1688 /* additional checks for ycbcr textures */
1689 if (internalFormat
== GL_YCBCR_MESA
) {
1690 ASSERT(ctx
->Extensions
.MESA_ycbcr_texture
);
1691 if (type
!= GL_UNSIGNED_SHORT_8_8_MESA
&&
1692 type
!= GL_UNSIGNED_SHORT_8_8_REV_MESA
) {
1694 _mesa_snprintf(message
, sizeof(message
),
1695 "glTexImage%dD(format/type YCBCR mismatch", dimensions
);
1696 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", message
);
1697 return GL_TRUE
; /* error */
1699 if (target
!= GL_TEXTURE_2D
&&
1700 target
!= GL_PROXY_TEXTURE_2D
&&
1701 target
!= GL_TEXTURE_RECTANGLE_NV
&&
1702 target
!= GL_PROXY_TEXTURE_RECTANGLE_NV
) {
1704 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexImage(target)");
1710 _mesa_snprintf(message
, sizeof(message
),
1711 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1712 dimensions
, border
);
1713 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", message
);
1719 /* additional checks for depth textures */
1720 if (_mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_COMPONENT
) {
1721 /* Only 1D, 2D, rect, array and cube textures supported, not 3D
1722 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */
1723 if (target
!= GL_TEXTURE_1D
&&
1724 target
!= GL_PROXY_TEXTURE_1D
&&
1725 target
!= GL_TEXTURE_2D
&&
1726 target
!= GL_PROXY_TEXTURE_2D
&&
1727 target
!= GL_TEXTURE_1D_ARRAY
&&
1728 target
!= GL_PROXY_TEXTURE_1D_ARRAY
&&
1729 target
!= GL_TEXTURE_2D_ARRAY
&&
1730 target
!= GL_PROXY_TEXTURE_2D_ARRAY
&&
1731 target
!= GL_TEXTURE_RECTANGLE_ARB
&&
1732 target
!= GL_PROXY_TEXTURE_RECTANGLE_ARB
&&
1733 !((_mesa_is_cube_face(target
) || target
== GL_PROXY_TEXTURE_CUBE_MAP
) &&
1734 (ctx
->VersionMajor
>= 3 || ctx
->Extensions
.EXT_gpu_shader4
))) {
1736 _mesa_error(ctx
, GL_INVALID_ENUM
,
1737 "glTexImage(target/internalFormat)");
1742 /* additional checks for compressed textures */
1743 if (_mesa_is_compressed_format(ctx
, internalFormat
) ||
1744 is_generic_compressed_format(internalFormat
)) {
1745 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
1747 _mesa_error(ctx
, GL_INVALID_ENUM
,
1748 "glTexImage%dD(target)", dimensions
);
1751 if (compressedteximage_only_format(ctx
, internalFormat
)) {
1752 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1753 "glTexImage%dD(no compression for format)", dimensions
);
1758 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1759 "glTexImage%dD(border!=0)", dimensions
);
1765 /* additional checks for integer textures */
1766 if ((ctx
->VersionMajor
>= 3 || ctx
->Extensions
.EXT_texture_integer
) &&
1767 (_mesa_is_integer_format(format
) !=
1768 _mesa_is_integer_format(internalFormat
))) {
1770 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1771 "glTexImage%dD(integer/non-integer format mismatch)",
1777 if (!mutable_tex_object(ctx
, target
)) {
1778 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1779 "glTexImage%dD(immutable texture)", dimensions
);
1783 /* if we get here, the parameters are OK */
1789 * Test glTexSubImage[123]D() parameters for errors.
1791 * \param ctx GL context.
1792 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1793 * \param target texture target given by the user.
1794 * \param level image level given by the user.
1795 * \param xoffset sub-image x offset given by the user.
1796 * \param yoffset sub-image y offset given by the user.
1797 * \param zoffset sub-image z offset given by the user.
1798 * \param format pixel data format given by the user.
1799 * \param type pixel data type given by the user.
1800 * \param width image width given by the user.
1801 * \param height image height given by the user.
1802 * \param depth image depth given by the user.
1804 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1806 * Verifies each of the parameters against the constants specified in
1807 * __struct gl_contextRec::Const and the supported extensions, and according
1808 * to the OpenGL specification.
1811 subtexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
1812 GLenum target
, GLint level
,
1813 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1814 GLint width
, GLint height
, GLint depth
,
1815 GLenum format
, GLenum type
)
1819 /* Basic level check */
1820 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1821 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage2D(level=%d)", level
);
1825 /* Check for negative sizes */
1827 _mesa_error(ctx
, GL_INVALID_VALUE
,
1828 "glTexSubImage%dD(width=%d)", dimensions
, width
);
1831 if (height
< 0 && dimensions
> 1) {
1832 _mesa_error(ctx
, GL_INVALID_VALUE
,
1833 "glTexSubImage%dD(height=%d)", dimensions
, height
);
1836 if (depth
< 0 && dimensions
> 2) {
1837 _mesa_error(ctx
, GL_INVALID_VALUE
,
1838 "glTexSubImage%dD(depth=%d)", dimensions
, depth
);
1842 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
1843 if (err
!= GL_NO_ERROR
) {
1844 _mesa_error(ctx
, err
,
1845 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
1846 dimensions
, format
, type
);
1855 * Do second part of glTexSubImage which depends on the destination texture.
1856 * \return GL_TRUE if error recorded, GL_FALSE otherwise
1859 subtexture_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
1860 GLenum target
, GLint level
,
1861 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1862 GLint width
, GLint height
, GLint depth
,
1863 GLenum format
, GLenum type
,
1864 const struct gl_texture_image
*destTex
)
1867 /* undefined image level */
1868 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexSubImage%dD", dimensions
);
1872 if (xoffset
< -((GLint
)destTex
->Border
)) {
1873 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset)",
1877 if (xoffset
+ width
> (GLint
) (destTex
->Width
+ destTex
->Border
)) {
1878 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(xoffset+width)",
1882 if (dimensions
> 1) {
1883 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : destTex
->Border
;
1884 if (yoffset
< -yBorder
) {
1885 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset)",
1889 if (yoffset
+ height
> (GLint
) destTex
->Height
+ yBorder
) {
1890 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage%dD(yoffset+height)",
1895 if (dimensions
> 2) {
1896 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
) ? 0 : destTex
->Border
;
1897 if (zoffset
< -zBorder
) {
1898 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset)");
1901 if (zoffset
+ depth
> (GLint
) destTex
->Depth
+ zBorder
) {
1902 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexSubImage3D(zoffset+depth)");
1907 if (_mesa_is_format_compressed(destTex
->TexFormat
)) {
1910 if (compressedteximage_only_format(ctx
, destTex
->InternalFormat
)) {
1911 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1912 "glTexSubImage%dD(no compression for format)", dimensions
);
1916 /* do tests which depend on compression block size */
1917 _mesa_get_format_block_size(destTex
->TexFormat
, &bw
, &bh
);
1919 /* offset must be multiple of block size */
1920 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0)) {
1921 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1922 "glTexSubImage%dD(xoffset = %d, yoffset = %d)",
1923 dimensions
, xoffset
, yoffset
);
1926 /* size must be multiple of bw by bh or equal to whole texture size */
1927 if ((width
% bw
!= 0) && (GLuint
) width
!= destTex
->Width
) {
1928 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1929 "glTexSubImage%dD(width = %d)", dimensions
, width
);
1932 if ((height
% bh
!= 0) && (GLuint
) height
!= destTex
->Height
) {
1933 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1934 "glTexSubImage%dD(height = %d)", dimensions
, height
);
1939 if (ctx
->VersionMajor
>= 3 || ctx
->Extensions
.EXT_texture_integer
) {
1940 /* both source and dest must be integer-valued, or neither */
1941 if (_mesa_is_format_integer_color(destTex
->TexFormat
) !=
1942 _mesa_is_integer_format(format
)) {
1943 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1944 "glTexSubImage%dD(integer/non-integer format mismatch)",
1955 * Test glCopyTexImage[12]D() parameters for errors.
1957 * \param ctx GL context.
1958 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1959 * \param target texture target given by the user.
1960 * \param level image level given by the user.
1961 * \param internalFormat internal format given by the user.
1962 * \param width image width given by the user.
1963 * \param height image height given by the user.
1964 * \param border texture border.
1966 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1968 * Verifies each of the parameters against the constants specified in
1969 * __struct gl_contextRec::Const and the supported extensions, and according
1970 * to the OpenGL specification.
1973 copytexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
1974 GLenum target
, GLint level
, GLint internalFormat
,
1975 GLint width
, GLint height
, GLint border
)
1977 const GLenum proxyTarget
= get_proxy_target(target
);
1978 const GLenum type
= GL_FLOAT
;
1983 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
1984 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexImage%uD(target=%s)",
1985 dimensions
, _mesa_lookup_enum_by_nr(target
));
1989 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1990 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
1991 _mesa_error(ctx
, GL_INVALID_VALUE
,
1992 "glCopyTexImage%dD(level=%d)", dimensions
, level
);
1996 /* Check that the source buffer is complete */
1997 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
1998 if (ctx
->ReadBuffer
->_Status
== 0) {
1999 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2001 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2002 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2003 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2007 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2008 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION
,
2009 "glCopyTexImage%dD(multisample FBO)",
2016 if (border
< 0 || border
> 1 ||
2017 ((target
== GL_TEXTURE_RECTANGLE_NV
||
2018 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
2022 baseFormat
= _mesa_base_tex_format(ctx
, internalFormat
);
2023 if (baseFormat
< 0) {
2024 _mesa_error(ctx
, GL_INVALID_VALUE
,
2025 "glCopyTexImage%dD(internalFormat)", dimensions
);
2029 if (!_mesa_source_buffer_exists(ctx
, baseFormat
)) {
2030 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2031 "glCopyTexImage%dD(missing readbuffer)", dimensions
);
2035 /* From the EXT_texture_integer spec:
2037 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2038 * if the texture internalformat is an integer format and the read color
2039 * buffer is not an integer format, or if the internalformat is not an
2040 * integer format and the read color buffer is an integer format."
2042 if (_mesa_is_color_format(internalFormat
)) {
2043 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2045 if (_mesa_is_integer_format(rb
->InternalFormat
) !=
2046 _mesa_is_integer_format(internalFormat
)) {
2047 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2048 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2053 /* Do size, level checking */
2054 sizeOK
= (proxyTarget
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
)
2055 ? (width
== height
) : 1;
2057 sizeOK
= sizeOK
&& ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
2058 internalFormat
, baseFormat
,
2059 type
, width
, height
,
2063 if (dimensions
== 1) {
2064 _mesa_error(ctx
, GL_INVALID_VALUE
,
2065 "glCopyTexImage1D(width=%d)", width
);
2068 ASSERT(dimensions
== 2);
2069 _mesa_error(ctx
, GL_INVALID_VALUE
,
2070 "glCopyTexImage2D(width=%d, height=%d)", width
, height
);
2075 if (_mesa_is_compressed_format(ctx
, internalFormat
) ||
2076 is_generic_compressed_format(internalFormat
)) {
2077 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2078 _mesa_error(ctx
, GL_INVALID_ENUM
,
2079 "glCopyTexImage%dD(target)", dimensions
);
2082 if (compressedteximage_only_format(ctx
, internalFormat
)) {
2083 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2084 "glCopyTexImage%dD(no compression for format)", dimensions
);
2088 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2089 "glCopyTexImage%dD(border!=0)", dimensions
);
2094 if (!mutable_tex_object(ctx
, target
)) {
2095 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2096 "glCopyTexImage%dD(immutable texture)", dimensions
);
2100 /* if we get here, the parameters are OK */
2106 * Test glCopyTexSubImage[12]D() parameters for errors.
2107 * Note that this is the first part of error checking.
2108 * See also copytexsubimage_error_check2() below for the second part.
2110 * \param ctx GL context.
2111 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2112 * \param target texture target given by the user.
2113 * \param level image level given by the user.
2115 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2118 copytexsubimage_error_check1( struct gl_context
*ctx
, GLuint dimensions
,
2119 GLenum target
, GLint level
)
2121 /* Check that the source buffer is complete */
2122 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2123 if (ctx
->ReadBuffer
->_Status
== 0) {
2124 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2126 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2127 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2128 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2132 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2133 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION
,
2134 "glCopyTexSubImage%dD(multisample FBO)",
2140 /* check target (proxies not allowed) */
2141 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2142 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexSubImage%uD(target=%s)",
2143 dimensions
, _mesa_lookup_enum_by_nr(target
));
2148 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
2149 _mesa_error(ctx
, GL_INVALID_VALUE
,
2150 "glCopyTexSubImage%dD(level=%d)", dimensions
, level
);
2159 * Second part of error checking for glCopyTexSubImage[12]D().
2160 * \param xoffset sub-image x offset given by the user.
2161 * \param yoffset sub-image y offset given by the user.
2162 * \param zoffset sub-image z offset given by the user.
2163 * \param width image width given by the user.
2164 * \param height image height given by the user.
2167 copytexsubimage_error_check2( struct gl_context
*ctx
, GLuint dimensions
,
2168 GLenum target
, GLint level
,
2169 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2170 GLsizei width
, GLsizei height
,
2171 const struct gl_texture_image
*teximage
)
2173 /* check that dest tex image exists */
2175 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2176 "glCopyTexSubImage%dD(undefined texture level: %d)",
2183 _mesa_error(ctx
, GL_INVALID_VALUE
,
2184 "glCopyTexSubImage%dD(width=%d)", dimensions
, width
);
2187 if (dimensions
> 1 && height
< 0) {
2188 _mesa_error(ctx
, GL_INVALID_VALUE
,
2189 "glCopyTexSubImage%dD(height=%d)", dimensions
, height
);
2193 /* check x/y offsets */
2194 if (xoffset
< -((GLint
)teximage
->Border
)) {
2195 _mesa_error(ctx
, GL_INVALID_VALUE
,
2196 "glCopyTexSubImage%dD(xoffset=%d)", dimensions
, xoffset
);
2199 if (xoffset
+ width
> (GLint
) (teximage
->Width
+ teximage
->Border
)) {
2200 _mesa_error(ctx
, GL_INVALID_VALUE
,
2201 "glCopyTexSubImage%dD(xoffset+width)", dimensions
);
2204 if (dimensions
> 1) {
2205 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : teximage
->Border
;
2206 if (yoffset
< -yBorder
) {
2207 _mesa_error(ctx
, GL_INVALID_VALUE
,
2208 "glCopyTexSubImage%dD(yoffset=%d)", dimensions
, yoffset
);
2211 /* NOTE: we're adding the border here, not subtracting! */
2212 if (yoffset
+ height
> (GLint
) teximage
->Height
+ yBorder
) {
2213 _mesa_error(ctx
, GL_INVALID_VALUE
,
2214 "glCopyTexSubImage%dD(yoffset+height)", dimensions
);
2219 /* check z offset */
2220 if (dimensions
> 2) {
2221 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
) ? 0 : teximage
->Border
;
2222 if (zoffset
< -zBorder
) {
2223 _mesa_error(ctx
, GL_INVALID_VALUE
,
2224 "glCopyTexSubImage%dD(zoffset)", dimensions
);
2227 if (zoffset
> (GLint
) teximage
->Depth
+ zBorder
) {
2228 _mesa_error(ctx
, GL_INVALID_VALUE
,
2229 "glCopyTexSubImage%dD(zoffset+depth)", dimensions
);
2234 if (_mesa_is_format_compressed(teximage
->TexFormat
)) {
2235 if (compressedteximage_only_format(ctx
, teximage
->InternalFormat
)) {
2236 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2237 "glCopyTexSubImage%dD(no compression for format)", dimensions
);
2240 /* offset must be multiple of 4 */
2241 if ((xoffset
& 3) || (yoffset
& 3)) {
2242 _mesa_error(ctx
, GL_INVALID_VALUE
,
2243 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions
);
2246 /* size must be multiple of 4 */
2247 if ((width
& 3) != 0 && (GLuint
) width
!= teximage
->Width
) {
2248 _mesa_error(ctx
, GL_INVALID_VALUE
,
2249 "glCopyTexSubImage%dD(width)", dimensions
);
2252 if ((height
& 3) != 0 && (GLuint
) height
!= teximage
->Height
) {
2253 _mesa_error(ctx
, GL_INVALID_VALUE
,
2254 "glCopyTexSubImage%dD(height)", dimensions
);
2259 if (teximage
->InternalFormat
== GL_YCBCR_MESA
) {
2260 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glCopyTexSubImage2D");
2264 if (!_mesa_source_buffer_exists(ctx
, teximage
->_BaseFormat
)) {
2265 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2266 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2267 dimensions
, teximage
->_BaseFormat
);
2271 /* From the EXT_texture_integer spec:
2273 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2274 * if the texture internalformat is an integer format and the read color
2275 * buffer is not an integer format, or if the internalformat is not an
2276 * integer format and the read color buffer is an integer format."
2278 if (_mesa_is_color_format(teximage
->InternalFormat
)) {
2279 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2281 if (_mesa_is_format_integer_color(rb
->Format
) !=
2282 _mesa_is_format_integer_color(teximage
->TexFormat
)) {
2283 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2284 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2289 /* if we get here, the parameters are OK */
2294 /** Callback info for walking over FBO hash table */
2297 struct gl_context
*ctx
;
2298 struct gl_texture_object
*texObj
;
2304 * Check render to texture callback. Called from _mesa_HashWalk().
2307 check_rtt_cb(GLuint key
, void *data
, void *userData
)
2309 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2310 const struct cb_info
*info
= (struct cb_info
*) userData
;
2311 struct gl_context
*ctx
= info
->ctx
;
2312 const struct gl_texture_object
*texObj
= info
->texObj
;
2313 const GLuint level
= info
->level
, face
= info
->face
;
2315 /* If this is a user-created FBO */
2316 if (_mesa_is_user_fbo(fb
)) {
2318 /* check if any of the FBO's attachments point to 'texObj' */
2319 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2320 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2321 if (att
->Type
== GL_TEXTURE
&&
2322 att
->Texture
== texObj
&&
2323 att
->TextureLevel
== level
&&
2324 att
->CubeMapFace
== face
) {
2325 ASSERT(_mesa_get_attachment_teximage(att
));
2326 /* Tell driver about the new renderbuffer texture */
2327 ctx
->Driver
.RenderTexture(ctx
, ctx
->DrawBuffer
, att
);
2328 /* Mark fb status as indeterminate to force re-validation */
2337 * When a texture image is specified we have to check if it's bound to
2338 * any framebuffer objects (render to texture) in order to detect changes
2339 * in size or format since that effects FBO completeness.
2340 * Any FBOs rendering into the texture must be re-validated.
2343 _mesa_update_fbo_texture(struct gl_context
*ctx
,
2344 struct gl_texture_object
*texObj
,
2345 GLuint face
, GLuint level
)
2347 /* Only check this texture if it's been marked as RenderToTexture */
2348 if (texObj
->_RenderToTexture
) {
2349 struct cb_info info
;
2351 info
.texObj
= texObj
;
2354 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, check_rtt_cb
, &info
);
2360 * If the texture object's GenerateMipmap flag is set and we've
2361 * changed the texture base level image, regenerate the rest of the
2362 * mipmap levels now.
2365 check_gen_mipmap(struct gl_context
*ctx
, GLenum target
,
2366 struct gl_texture_object
*texObj
, GLint level
)
2368 ASSERT(target
!= GL_TEXTURE_CUBE_MAP
);
2369 if (texObj
->GenerateMipmap
&&
2370 level
== texObj
->BaseLevel
&&
2371 level
< texObj
->MaxLevel
) {
2372 ASSERT(ctx
->Driver
.GenerateMipmap
);
2373 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2378 /** Debug helper: override the user-requested internal format */
2380 override_internal_format(GLenum internalFormat
, GLint width
, GLint height
)
2383 if (internalFormat
== GL_RGBA16F_ARB
||
2384 internalFormat
== GL_RGBA32F_ARB
) {
2385 printf("Convert rgba float tex to int %d x %d\n", width
, height
);
2388 else if (internalFormat
== GL_RGB16F_ARB
||
2389 internalFormat
== GL_RGB32F_ARB
) {
2390 printf("Convert rgb float tex to int %d x %d\n", width
, height
);
2393 else if (internalFormat
== GL_LUMINANCE_ALPHA16F_ARB
||
2394 internalFormat
== GL_LUMINANCE_ALPHA32F_ARB
) {
2395 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2396 return GL_LUMINANCE_ALPHA
;
2398 else if (internalFormat
== GL_LUMINANCE16F_ARB
||
2399 internalFormat
== GL_LUMINANCE32F_ARB
) {
2400 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2401 return GL_LUMINANCE
;
2403 else if (internalFormat
== GL_ALPHA16F_ARB
||
2404 internalFormat
== GL_ALPHA32F_ARB
) {
2405 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2409 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2410 internalFormat = GL_RGBA;
2414 return internalFormat
;
2417 return internalFormat
;
2423 * Choose the actual hardware format for a texture image.
2424 * Try to use the same format as the previous image level when possible.
2425 * Otherwise, ask the driver for the best format.
2426 * It's important to try to choose a consistant format for all levels
2427 * for efficient texture memory layout/allocation. In particular, this
2428 * comes up during automatic mipmap generation.
2431 _mesa_choose_texture_format(struct gl_context
*ctx
,
2432 struct gl_texture_object
*texObj
,
2433 GLenum target
, GLint level
,
2434 GLenum internalFormat
, GLenum format
, GLenum type
)
2438 /* see if we've already chosen a format for the previous level */
2440 struct gl_texture_image
*prevImage
=
2441 _mesa_select_tex_image(ctx
, texObj
, target
, level
- 1);
2442 /* See if the prev level is defined and has an internal format which
2443 * matches the new internal format.
2446 prevImage
->Width
> 0 &&
2447 prevImage
->InternalFormat
== internalFormat
) {
2448 /* use the same format */
2449 ASSERT(prevImage
->TexFormat
!= MESA_FORMAT_NONE
);
2450 return prevImage
->TexFormat
;
2454 /* choose format from scratch */
2455 f
= ctx
->Driver
.ChooseTextureFormat(ctx
, internalFormat
, format
, type
);
2456 ASSERT(f
!= MESA_FORMAT_NONE
);
2461 * Adjust pixel unpack params and image dimensions to strip off the
2462 * one-pixel texture border.
2464 * Gallium and intel don't support texture borders. They've seldem been used
2465 * and seldom been implemented correctly anyway.
2467 * \param unpackNew returns the new pixel unpack parameters
2470 strip_texture_border(GLenum target
,
2471 GLint
*width
, GLint
*height
, GLint
*depth
,
2472 const struct gl_pixelstore_attrib
*unpack
,
2473 struct gl_pixelstore_attrib
*unpackNew
)
2479 *unpackNew
= *unpack
;
2481 if (unpackNew
->RowLength
== 0)
2482 unpackNew
->RowLength
= *width
;
2484 if (unpackNew
->ImageHeight
== 0)
2485 unpackNew
->ImageHeight
= *height
;
2487 assert(*width
>= 3);
2488 unpackNew
->SkipPixels
++; /* skip the border */
2489 *width
= *width
- 2; /* reduce the width by two border pixels */
2491 /* The min height of a texture with a border is 3 */
2492 if (*height
>= 3 && target
!= GL_TEXTURE_1D_ARRAY
) {
2493 unpackNew
->SkipRows
++; /* skip the border */
2494 *height
= *height
- 2; /* reduce the height by two border pixels */
2497 if (*depth
>= 3 && target
!= GL_TEXTURE_2D_ARRAY
) {
2498 unpackNew
->SkipImages
++; /* skip the border */
2499 *depth
= *depth
- 2; /* reduce the depth by two border pixels */
2504 * Common code to implement all the glTexImage1D/2D/3D functions.
2507 teximage(struct gl_context
*ctx
, GLuint dims
,
2508 GLenum target
, GLint level
, GLint internalFormat
,
2509 GLsizei width
, GLsizei height
, GLsizei depth
,
2510 GLint border
, GLenum format
, GLenum type
,
2511 const GLvoid
*pixels
)
2514 struct gl_pixelstore_attrib unpack_no_border
;
2515 const struct gl_pixelstore_attrib
*unpack
= &ctx
->Unpack
;
2517 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2519 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2520 _mesa_debug(ctx
, "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2522 _mesa_lookup_enum_by_nr(target
), level
,
2523 _mesa_lookup_enum_by_nr(internalFormat
),
2524 width
, height
, depth
, border
,
2525 _mesa_lookup_enum_by_nr(format
),
2526 _mesa_lookup_enum_by_nr(type
), pixels
);
2528 internalFormat
= override_internal_format(internalFormat
, width
, height
);
2530 /* target error checking */
2531 if (!legal_teximage_target(ctx
, dims
, target
)) {
2532 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexImage%uD(target=%s)",
2533 dims
, _mesa_lookup_enum_by_nr(target
));
2537 /* general error checking */
2538 error
= texture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2539 format
, type
, width
, height
, depth
, border
);
2541 if (_mesa_is_proxy_texture(target
)) {
2542 /* Proxy texture: just clear or set state depending on error checking */
2543 struct gl_texture_image
*texImage
=
2544 _mesa_get_proxy_tex_image(ctx
, target
, level
);
2547 /* when error, clear all proxy texture image parameters */
2549 clear_teximage_fields(texImage
);
2552 /* no error, set the tex image parameters */
2553 struct gl_texture_object
*texObj
=
2554 _mesa_get_current_tex_object(ctx
, target
);
2555 gl_format texFormat
= _mesa_choose_texture_format(ctx
, texObj
,
2560 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
2561 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
,
2562 depth
, border
, internalFormat
,
2565 else if (texImage
) {
2566 clear_teximage_fields(texImage
);
2571 /* non-proxy target */
2572 const GLuint face
= _mesa_tex_target_to_face(target
);
2573 struct gl_texture_object
*texObj
;
2574 struct gl_texture_image
*texImage
;
2577 return; /* error was recorded */
2580 /* Allow a hardware driver to just strip out the border, to provide
2581 * reliable but slightly incorrect hardware rendering instead of
2582 * rarely-tested software fallback rendering.
2584 if (border
&& ctx
->Const
.StripTextureBorder
) {
2585 strip_texture_border(target
, &width
, &height
, &depth
, unpack
,
2588 unpack
= &unpack_no_border
;
2591 if (ctx
->NewState
& _NEW_PIXEL
)
2592 _mesa_update_state(ctx
);
2594 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2596 _mesa_lock_texture(ctx
, texObj
);
2598 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
2601 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
2604 gl_format texFormat
;
2606 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
2608 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
2609 internalFormat
, format
,
2612 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
2613 _mesa_init_teximage_fields(ctx
, texImage
,
2614 width
, height
, depth
,
2615 border
, internalFormat
, texFormat
);
2617 /* Give the texture to the driver. <pixels> may be null. */
2618 ctx
->Driver
.TexImage(ctx
, dims
, texImage
, internalFormat
,
2619 width
, height
, depth
, border
, format
,
2620 type
, pixels
, unpack
);
2622 check_gen_mipmap(ctx
, target
, texObj
, level
);
2624 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
2626 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
2629 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
2633 _mesa_unlock_texture(ctx
, texObj
);
2639 * Called from the API. Note that width includes the border.
2642 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalFormat
,
2643 GLsizei width
, GLint border
, GLenum format
,
2644 GLenum type
, const GLvoid
*pixels
)
2646 GET_CURRENT_CONTEXT(ctx
);
2647 teximage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1,
2648 border
, format
, type
, pixels
);
2653 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalFormat
,
2654 GLsizei width
, GLsizei height
, GLint border
,
2655 GLenum format
, GLenum type
,
2656 const GLvoid
*pixels
)
2658 GET_CURRENT_CONTEXT(ctx
);
2659 teximage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1,
2660 border
, format
, type
, pixels
);
2665 * Called by the API or display list executor.
2666 * Note that width and height include the border.
2669 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalFormat
,
2670 GLsizei width
, GLsizei height
, GLsizei depth
,
2671 GLint border
, GLenum format
, GLenum type
,
2672 const GLvoid
*pixels
)
2674 GET_CURRENT_CONTEXT(ctx
);
2675 teximage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
2676 border
, format
, type
, pixels
);
2681 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalFormat
,
2682 GLsizei width
, GLsizei height
, GLsizei depth
,
2683 GLint border
, GLenum format
, GLenum type
,
2684 const GLvoid
*pixels
)
2686 _mesa_TexImage3D(target
, level
, (GLint
) internalFormat
, width
, height
,
2687 depth
, border
, format
, type
, pixels
);
2691 #if FEATURE_OES_EGL_image
2693 _mesa_EGLImageTargetTexture2DOES (GLenum target
, GLeglImageOES image
)
2695 struct gl_texture_object
*texObj
;
2696 struct gl_texture_image
*texImage
;
2697 GET_CURRENT_CONTEXT(ctx
);
2698 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2700 if ((target
== GL_TEXTURE_2D
&&
2701 !ctx
->Extensions
.OES_EGL_image
) ||
2702 (target
== GL_TEXTURE_EXTERNAL_OES
&&
2703 !ctx
->Extensions
.OES_EGL_image_external
)) {
2704 _mesa_error(ctx
, GL_INVALID_ENUM
,
2705 "glEGLImageTargetTexture2D(target=%d)", target
);
2709 if (ctx
->NewState
& _NEW_PIXEL
)
2710 _mesa_update_state(ctx
);
2712 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2713 _mesa_lock_texture(ctx
, texObj
);
2715 if (texObj
->Immutable
) {
2716 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2717 "glEGLImageTargetTexture2D(texture is immutable)");
2718 _mesa_unlock_texture(ctx
, texObj
);
2722 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
2724 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glEGLImageTargetTexture2D");
2726 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
2728 ctx
->Driver
.EGLImageTargetTexture2D(ctx
, target
,
2729 texObj
, texImage
, image
);
2731 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
2733 _mesa_unlock_texture(ctx
, texObj
);
2741 * Implement all the glTexSubImage1/2/3D() functions.
2744 texsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
2745 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2746 GLsizei width
, GLsizei height
, GLsizei depth
,
2747 GLenum format
, GLenum type
, const GLvoid
*pixels
)
2749 struct gl_texture_object
*texObj
;
2750 struct gl_texture_image
*texImage
;
2752 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2754 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2755 _mesa_debug(ctx
, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
2757 _mesa_lookup_enum_by_nr(target
), level
,
2758 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
2759 _mesa_lookup_enum_by_nr(format
),
2760 _mesa_lookup_enum_by_nr(type
), pixels
);
2762 /* check target (proxies not allowed) */
2763 if (!legal_texsubimage_target(ctx
, dims
, target
)) {
2764 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
2765 dims
, _mesa_lookup_enum_by_nr(target
));
2769 if (ctx
->NewState
& _NEW_PIXEL
)
2770 _mesa_update_state(ctx
);
2772 if (subtexture_error_check(ctx
, dims
, target
, level
, xoffset
, yoffset
, zoffset
,
2773 width
, height
, depth
, format
, type
)) {
2774 return; /* error was detected */
2777 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2779 _mesa_lock_texture(ctx
, texObj
);
2781 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2783 if (subtexture_error_check2(ctx
, dims
, target
, level
,
2784 xoffset
, yoffset
, zoffset
,
2785 width
, height
, depth
,
2786 format
, type
, texImage
)) {
2787 /* error was recorded */
2789 else if (width
> 0 && height
> 0 && depth
> 0) {
2790 /* If we have a border, offset=-1 is legal. Bias by border width. */
2793 if (target
!= GL_TEXTURE_2D_ARRAY
)
2794 zoffset
+= texImage
->Border
;
2797 if (target
!= GL_TEXTURE_1D_ARRAY
)
2798 yoffset
+= texImage
->Border
;
2801 xoffset
+= texImage
->Border
;
2804 ctx
->Driver
.TexSubImage(ctx
, dims
, texImage
,
2805 xoffset
, yoffset
, zoffset
,
2806 width
, height
, depth
,
2807 format
, type
, pixels
, &ctx
->Unpack
);
2809 check_gen_mipmap(ctx
, target
, texObj
, level
);
2811 ctx
->NewState
|= _NEW_TEXTURE
;
2814 _mesa_unlock_texture(ctx
, texObj
);
2819 _mesa_TexSubImage1D( GLenum target
, GLint level
,
2820 GLint xoffset
, GLsizei width
,
2821 GLenum format
, GLenum type
,
2822 const GLvoid
*pixels
)
2824 GET_CURRENT_CONTEXT(ctx
);
2825 texsubimage(ctx
, 1, target
, level
,
2828 format
, type
, pixels
);
2833 _mesa_TexSubImage2D( GLenum target
, GLint level
,
2834 GLint xoffset
, GLint yoffset
,
2835 GLsizei width
, GLsizei height
,
2836 GLenum format
, GLenum type
,
2837 const GLvoid
*pixels
)
2839 GET_CURRENT_CONTEXT(ctx
);
2840 texsubimage(ctx
, 2, target
, level
,
2841 xoffset
, yoffset
, 0,
2843 format
, type
, pixels
);
2849 _mesa_TexSubImage3D( GLenum target
, GLint level
,
2850 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2851 GLsizei width
, GLsizei height
, GLsizei depth
,
2852 GLenum format
, GLenum type
,
2853 const GLvoid
*pixels
)
2855 GET_CURRENT_CONTEXT(ctx
);
2856 texsubimage(ctx
, 3, target
, level
,
2857 xoffset
, yoffset
, zoffset
,
2858 width
, height
, depth
,
2859 format
, type
, pixels
);
2865 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
2866 * from. This depends on whether the texture contains color or depth values.
2868 static struct gl_renderbuffer
*
2869 get_copy_tex_image_source(struct gl_context
*ctx
, gl_format texFormat
)
2871 if (_mesa_get_format_bits(texFormat
, GL_DEPTH_BITS
) > 0) {
2872 /* reading from depth/stencil buffer */
2873 return ctx
->ReadBuffer
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
2876 /* copying from color buffer */
2877 return ctx
->ReadBuffer
->_ColorReadBuffer
;
2884 * Implement the glCopyTexImage1/2D() functions.
2887 copyteximage(struct gl_context
*ctx
, GLuint dims
,
2888 GLenum target
, GLint level
, GLenum internalFormat
,
2889 GLint x
, GLint y
, GLsizei width
, GLsizei height
, GLint border
)
2891 struct gl_texture_object
*texObj
;
2892 struct gl_texture_image
*texImage
;
2893 const GLuint face
= _mesa_tex_target_to_face(target
);
2895 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
2897 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2898 _mesa_debug(ctx
, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
2900 _mesa_lookup_enum_by_nr(target
), level
,
2901 _mesa_lookup_enum_by_nr(internalFormat
),
2902 x
, y
, width
, height
, border
);
2904 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
2905 _mesa_update_state(ctx
);
2907 if (copytexture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2908 width
, height
, border
))
2911 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2913 if (border
&& ctx
->Const
.StripTextureBorder
) {
2915 width
-= border
* 2;
2918 height
-= border
* 2;
2923 _mesa_lock_texture(ctx
, texObj
);
2925 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
2928 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
2931 /* choose actual hw format */
2932 gl_format texFormat
= _mesa_choose_texture_format(ctx
, texObj
,
2937 if (legal_texture_size(ctx
, texFormat
, width
, height
, 1)) {
2938 GLint srcX
= x
, srcY
= y
, dstX
= 0, dstY
= 0, dstZ
= 0;
2940 /* Free old texture image */
2941 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
2943 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, 1,
2944 border
, internalFormat
, texFormat
);
2946 /* Allocate texture memory (no pixel data yet) */
2947 ctx
->Driver
.TexImage(ctx
, dims
, texImage
, internalFormat
,
2948 width
, height
, 1, border
, GL_NONE
, GL_NONE
,
2949 NULL
, &ctx
->Unpack
);
2951 if (_mesa_clip_copytexsubimage(ctx
, &dstX
, &dstY
, &srcX
, &srcY
,
2953 struct gl_renderbuffer
*srcRb
=
2954 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
2956 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
, dstX
, dstY
, dstZ
,
2957 srcRb
, srcX
, srcY
, width
, height
);
2960 check_gen_mipmap(ctx
, target
, texObj
, level
);
2962 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
2964 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
2967 /* probably too large of image */
2968 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
2972 _mesa_unlock_texture(ctx
, texObj
);
2978 _mesa_CopyTexImage1D( GLenum target
, GLint level
,
2979 GLenum internalFormat
,
2981 GLsizei width
, GLint border
)
2983 GET_CURRENT_CONTEXT(ctx
);
2984 copyteximage(ctx
, 1, target
, level
, internalFormat
, x
, y
, width
, 1, border
);
2990 _mesa_CopyTexImage2D( GLenum target
, GLint level
, GLenum internalFormat
,
2991 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
2994 GET_CURRENT_CONTEXT(ctx
);
2995 copyteximage(ctx
, 2, target
, level
, internalFormat
,
2996 x
, y
, width
, height
, border
);
3002 * Implementation for glCopyTexSubImage1/2/3D() functions.
3005 copytexsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3006 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3007 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3009 struct gl_texture_object
*texObj
;
3010 struct gl_texture_image
*texImage
;
3012 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3014 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3015 _mesa_debug(ctx
, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
3017 _mesa_lookup_enum_by_nr(target
),
3018 level
, xoffset
, yoffset
, zoffset
, x
, y
, width
, height
);
3020 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3021 _mesa_update_state(ctx
);
3023 if (copytexsubimage_error_check1(ctx
, dims
, target
, level
))
3026 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3028 _mesa_lock_texture(ctx
, texObj
);
3030 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3032 if (copytexsubimage_error_check2(ctx
, dims
, target
, level
, xoffset
, yoffset
,
3033 zoffset
, width
, height
, texImage
)) {
3034 /* error was recored */
3037 /* If we have a border, offset=-1 is legal. Bias by border width. */
3040 if (target
!= GL_TEXTURE_2D_ARRAY
)
3041 zoffset
+= texImage
->Border
;
3044 if (target
!= GL_TEXTURE_1D_ARRAY
)
3045 yoffset
+= texImage
->Border
;
3048 xoffset
+= texImage
->Border
;
3051 if (_mesa_clip_copytexsubimage(ctx
, &xoffset
, &yoffset
, &x
, &y
,
3053 struct gl_renderbuffer
*srcRb
=
3054 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3056 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
,
3057 xoffset
, yoffset
, zoffset
,
3058 srcRb
, x
, y
, width
, height
);
3060 check_gen_mipmap(ctx
, target
, texObj
, level
);
3062 ctx
->NewState
|= _NEW_TEXTURE
;
3066 _mesa_unlock_texture(ctx
, texObj
);
3071 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
,
3072 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
3074 GET_CURRENT_CONTEXT(ctx
);
3075 copytexsubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, x
, y
, width
, 1);
3081 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
3082 GLint xoffset
, GLint yoffset
,
3083 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3085 GET_CURRENT_CONTEXT(ctx
);
3086 copytexsubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0, x
, y
,
3093 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
3094 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3095 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3097 GET_CURRENT_CONTEXT(ctx
);
3098 copytexsubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
3099 x
, y
, width
, height
);
3105 /**********************************************************************/
3106 /****** Compressed Textures ******/
3107 /**********************************************************************/
3111 * Return expected size of a compressed texture.
3114 compressed_tex_size(GLsizei width
, GLsizei height
, GLsizei depth
,
3117 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
3118 return _mesa_format_image_size(mesaFormat
, width
, height
, depth
);
3123 * Return compressed texture block size, in pixels.
3126 get_compressed_block_size(GLenum glformat
, GLuint
*bw
, GLuint
*bh
)
3128 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
3129 _mesa_get_format_block_size(mesaFormat
, bw
, bh
);
3134 * Error checking for glCompressedTexImage[123]D().
3135 * \param reason returns reason for error, if any
3136 * \return error code or GL_NO_ERROR.
3139 compressed_texture_error_check(struct gl_context
*ctx
, GLint dimensions
,
3140 GLenum target
, GLint level
,
3141 GLenum internalFormat
, GLsizei width
,
3142 GLsizei height
, GLsizei depth
, GLint border
,
3143 GLsizei imageSize
, char **reason
)
3145 const GLenum proxyTarget
= get_proxy_target(target
);
3146 const GLint maxLevels
= _mesa_max_texture_levels(ctx
, target
);
3148 GLenum choose_format
;
3150 GLenum proxy_format
;
3152 *reason
= ""; /* no error */
3154 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
3156 return GL_INVALID_ENUM
;
3159 /* This will detect any invalid internalFormat value */
3160 if (!_mesa_is_compressed_format(ctx
, internalFormat
)) {
3161 *reason
= "internalFormat";
3162 return GL_INVALID_ENUM
;
3165 switch (internalFormat
) {
3167 case GL_PALETTE4_RGB8_OES
:
3168 case GL_PALETTE4_RGBA8_OES
:
3169 case GL_PALETTE4_R5_G6_B5_OES
:
3170 case GL_PALETTE4_RGBA4_OES
:
3171 case GL_PALETTE4_RGB5_A1_OES
:
3172 case GL_PALETTE8_RGB8_OES
:
3173 case GL_PALETTE8_RGBA8_OES
:
3174 case GL_PALETTE8_R5_G6_B5_OES
:
3175 case GL_PALETTE8_RGBA4_OES
:
3176 case GL_PALETTE8_RGB5_A1_OES
:
3177 _mesa_cpal_compressed_format_type(internalFormat
, &choose_format
,
3179 proxy_format
= choose_format
;
3182 if (level
> 0 || level
< -maxLevels
) {
3184 return GL_INVALID_VALUE
;
3187 if (dimensions
!= 2) {
3188 *reason
= "compressed paletted textures must be 2D";
3189 return GL_INVALID_OPERATION
;
3192 /* Figure out the expected texture size (in bytes). This will be
3193 * checked against the actual size later.
3195 expectedSize
= _mesa_cpal_compressed_size(level
, internalFormat
,
3198 /* This is for the benefit of the TestProxyTexImage below. It expects
3199 * level to be non-negative. OES_compressed_paletted_texture uses a
3200 * weird mechanism where the level specified to glCompressedTexImage2D
3201 * is -(n-1) number of levels in the texture, and the data specifies the
3202 * complete mipmap stack. This is done to ensure the palette is the
3203 * same for all levels.
3210 choose_format
= GL_NONE
;
3211 choose_type
= GL_NONE
;
3212 proxy_format
= internalFormat
;
3215 if (level
< 0 || level
>= maxLevels
) {
3217 return GL_INVALID_VALUE
;
3220 /* Figure out the expected texture size (in bytes). This will be
3221 * checked against the actual size later.
3223 expectedSize
= compressed_tex_size(width
, height
, depth
, internalFormat
);
3227 /* This should really never fail */
3228 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
3229 *reason
= "internalFormat";
3230 return GL_INVALID_ENUM
;
3233 /* No compressed formats support borders at this time */
3235 *reason
= "border != 0";
3236 return GL_INVALID_VALUE
;
3239 /* For cube map, width must equal height */
3240 if (_mesa_is_cube_face(target
) && width
!= height
) {
3241 *reason
= "width != height";
3242 return GL_INVALID_VALUE
;
3245 /* check image size against compression block size */
3247 gl_format texFormat
=
3248 ctx
->Driver
.ChooseTextureFormat(ctx
, proxy_format
,
3249 choose_format
, choose_type
);
3252 _mesa_get_format_block_size(texFormat
, &bw
, &bh
);
3253 if ((width
> bw
&& width
% bw
> 0) ||
3254 (height
> bh
&& height
% bh
> 0)) {
3256 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is
3257 * generated [...] if any parameter combinations are not
3258 * supported by the specific compressed internal format.
3260 *reason
= "invalid width or height for compression format";
3261 return GL_INVALID_OPERATION
;
3265 /* check image sizes */
3266 if (!ctx
->Driver
.TestProxyTexImage(ctx
, proxyTarget
, level
,
3267 proxy_format
, choose_format
,
3269 width
, height
, depth
, border
)) {
3270 /* See error comment above */
3271 *reason
= "invalid width, height or format";
3272 return GL_INVALID_OPERATION
;
3275 /* check image size in bytes */
3276 if (expectedSize
!= imageSize
) {
3277 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
3278 * if <imageSize> is not consistent with the format, dimensions, and
3279 * contents of the specified image.
3281 *reason
= "imageSize inconsistant with width/height/format";
3282 return GL_INVALID_VALUE
;
3285 if (!mutable_tex_object(ctx
, target
)) {
3286 *reason
= "immutable texture";
3287 return GL_INVALID_OPERATION
;
3295 * Error checking for glCompressedTexSubImage[123]D().
3296 * \warning There are some bad assumptions here about the size of compressed
3297 * texture tiles (multiple of 4) used to test the validity of the
3298 * offset and size parameters.
3299 * \return error code or GL_NO_ERROR.
3302 compressed_subtexture_error_check(struct gl_context
*ctx
, GLint dimensions
,
3303 GLenum target
, GLint level
,
3304 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3305 GLsizei width
, GLsizei height
, GLsizei depth
,
3306 GLenum format
, GLsizei imageSize
)
3308 GLint expectedSize
, maxLevels
= 0, maxTextureSize
;
3312 if (dimensions
== 1) {
3313 /* 1D compressed textures not allowed */
3314 return GL_INVALID_ENUM
;
3316 else if (dimensions
== 2) {
3317 if (target
== GL_PROXY_TEXTURE_2D
) {
3318 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3320 else if (target
== GL_TEXTURE_2D
) {
3321 maxLevels
= ctx
->Const
.MaxTextureLevels
;
3323 else if (target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
) {
3324 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3325 return GL_INVALID_ENUM
; /*target*/
3326 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3328 else if (_mesa_is_cube_face(target
)) {
3329 if (!ctx
->Extensions
.ARB_texture_cube_map
)
3330 return GL_INVALID_ENUM
; /*target*/
3331 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
3334 return GL_INVALID_ENUM
; /*target*/
3337 else if (dimensions
== 3) {
3338 /* 3D compressed textures not allowed */
3339 return GL_INVALID_ENUM
;
3342 maxTextureSize
= 1 << (maxLevels
- 1);
3344 /* this will catch any invalid compressed format token */
3345 if (!_mesa_is_compressed_format(ctx
, format
))
3346 return GL_INVALID_ENUM
;
3348 if (width
< 1 || width
> maxTextureSize
)
3349 return GL_INVALID_VALUE
;
3351 if ((height
< 1 || height
> maxTextureSize
)
3353 return GL_INVALID_VALUE
;
3355 if (level
< 0 || level
>= maxLevels
)
3356 return GL_INVALID_VALUE
;
3359 * do checks which depend on compression block size
3361 get_compressed_block_size(format
, &bw
, &bh
);
3363 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0))
3364 return GL_INVALID_VALUE
;
3366 if ((width
% bw
!= 0) && width
!= 2 && width
!= 1)
3367 return GL_INVALID_VALUE
;
3369 if ((height
% bh
!= 0) && height
!= 2 && height
!= 1)
3370 return GL_INVALID_VALUE
;
3372 expectedSize
= compressed_tex_size(width
, height
, depth
, format
);
3373 if (expectedSize
!= imageSize
)
3374 return GL_INVALID_VALUE
;
3381 * Do second part of glCompressedTexSubImage error checking.
3382 * \return GL_TRUE if error found, GL_FALSE otherwise.
3385 compressed_subtexture_error_check2(struct gl_context
*ctx
, GLuint dims
,
3386 GLsizei width
, GLsizei height
,
3387 GLsizei depth
, GLenum format
,
3388 struct gl_texture_image
*texImage
)
3391 if ((GLint
) format
!= texImage
->InternalFormat
) {
3392 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3393 "glCompressedTexSubImage%uD(format=0x%x)", dims
, format
);
3397 if (compressedteximage_only_format(ctx
, format
)) {
3398 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3399 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)"
3404 if (((width
== 1 || width
== 2) &&
3405 width
!= (GLsizei
) texImage
->Width
) ||
3406 (width
> (GLsizei
) texImage
->Width
)) {
3407 _mesa_error(ctx
, GL_INVALID_VALUE
,
3408 "glCompressedTexSubImage%uD(width=%d)", dims
, width
);
3413 if (((height
== 1 || height
== 2) &&
3414 height
!= (GLsizei
) texImage
->Height
) ||
3415 (height
> (GLsizei
) texImage
->Height
)) {
3416 _mesa_error(ctx
, GL_INVALID_VALUE
,
3417 "glCompressedTexSubImage%uD(height=%d)", dims
, height
);
3423 if (((depth
== 1 || depth
== 2) &&
3424 depth
!= (GLsizei
) texImage
->Depth
) ||
3425 (depth
> (GLsizei
) texImage
->Depth
)) {
3426 _mesa_error(ctx
, GL_INVALID_VALUE
,
3427 "glCompressedTexSubImage%uD(depth=%d)", dims
, depth
);
3437 * Implementation of the glCompressedTexImage1/2/3D() functions.
3440 compressedteximage(struct gl_context
*ctx
, GLuint dims
,
3441 GLenum target
, GLint level
,
3442 GLenum internalFormat
, GLsizei width
,
3443 GLsizei height
, GLsizei depth
, GLint border
,
3444 GLsizei imageSize
, const GLvoid
*data
)
3449 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3451 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3453 "glCompressedTexImage%uDARB %s %d %s %d %d %d %d %d %p\n",
3455 _mesa_lookup_enum_by_nr(target
), level
,
3456 _mesa_lookup_enum_by_nr(internalFormat
),
3457 width
, height
, depth
, border
, imageSize
, data
);
3460 if (!legal_teximage_target(ctx
, dims
, target
)) {
3461 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCompressedTexImage%uD(target=%s)",
3462 dims
, _mesa_lookup_enum_by_nr(target
));
3466 error
= compressed_texture_error_check(ctx
, dims
, target
, level
,
3467 internalFormat
, width
, height
, depth
,
3468 border
, imageSize
, &reason
);
3471 /* XXX this is kind of a hack */
3472 if (!error
&& dims
== 2) {
3473 switch (internalFormat
) {
3474 case GL_PALETTE4_RGB8_OES
:
3475 case GL_PALETTE4_RGBA8_OES
:
3476 case GL_PALETTE4_R5_G6_B5_OES
:
3477 case GL_PALETTE4_RGBA4_OES
:
3478 case GL_PALETTE4_RGB5_A1_OES
:
3479 case GL_PALETTE8_RGB8_OES
:
3480 case GL_PALETTE8_RGBA8_OES
:
3481 case GL_PALETTE8_R5_G6_B5_OES
:
3482 case GL_PALETTE8_RGBA4_OES
:
3483 case GL_PALETTE8_RGB5_A1_OES
:
3484 _mesa_cpal_compressed_teximage2d(target
, level
, internalFormat
,
3485 width
, height
, imageSize
, data
);
3491 if (_mesa_is_proxy_texture(target
)) {
3492 /* Proxy texture: just check for errors and update proxy state */
3493 struct gl_texture_image
*texImage
;
3496 struct gl_texture_object
*texObj
=
3497 _mesa_get_current_tex_object(ctx
, target
);
3498 gl_format texFormat
=
3499 _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3500 internalFormat
, GL_NONE
, GL_NONE
);
3501 if (!legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
3502 error
= GL_OUT_OF_MEMORY
;
3506 texImage
= _mesa_get_proxy_tex_image(ctx
, target
, level
);
3509 /* if error, clear all proxy texture image parameters */
3510 clear_teximage_fields(texImage
);
3513 /* no error: store the teximage parameters */
3514 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
,
3515 depth
, border
, internalFormat
,
3521 /* non-proxy target */
3522 struct gl_texture_object
*texObj
;
3523 struct gl_texture_image
*texImage
;
3526 _mesa_error(ctx
, error
, "glCompressedTexImage%uD(%s)", dims
, reason
);
3530 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3532 _mesa_lock_texture(ctx
, texObj
);
3534 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3536 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3537 "glCompressedTexImage%uD", dims
);
3540 gl_format texFormat
;
3542 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3544 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3545 internalFormat
, GL_NONE
,
3548 if (legal_texture_size(ctx
, texFormat
, width
, height
, depth
)) {
3549 _mesa_init_teximage_fields(ctx
, texImage
,
3550 width
, height
, depth
,
3551 border
, internalFormat
, texFormat
);
3553 ctx
->Driver
.CompressedTexImage(ctx
, dims
, texImage
,
3555 width
, height
, depth
,
3556 border
, imageSize
, data
);
3558 check_gen_mipmap(ctx
, target
, texObj
, level
);
3560 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3563 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3564 "glCompressedTexImage%uD", dims
);
3568 _mesa_unlock_texture(ctx
, texObj
);
3574 _mesa_CompressedTexImage1DARB(GLenum target
, GLint level
,
3575 GLenum internalFormat
, GLsizei width
,
3576 GLint border
, GLsizei imageSize
,
3579 GET_CURRENT_CONTEXT(ctx
);
3580 compressedteximage(ctx
, 1, target
, level
, internalFormat
,
3581 width
, 1, 1, border
, imageSize
, data
);
3586 _mesa_CompressedTexImage2DARB(GLenum target
, GLint level
,
3587 GLenum internalFormat
, GLsizei width
,
3588 GLsizei height
, GLint border
, GLsizei imageSize
,
3591 GET_CURRENT_CONTEXT(ctx
);
3592 compressedteximage(ctx
, 2, target
, level
, internalFormat
,
3593 width
, height
, 1, border
, imageSize
, data
);
3598 _mesa_CompressedTexImage3DARB(GLenum target
, GLint level
,
3599 GLenum internalFormat
, GLsizei width
,
3600 GLsizei height
, GLsizei depth
, GLint border
,
3601 GLsizei imageSize
, const GLvoid
*data
)
3603 GET_CURRENT_CONTEXT(ctx
);
3604 compressedteximage(ctx
, 3, target
, level
, internalFormat
,
3605 width
, height
, depth
, border
, imageSize
, data
);
3610 * Common helper for glCompressedTexSubImage1/2/3D().
3613 compressed_tex_sub_image(GLuint dims
, GLenum target
, GLint level
,
3614 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3615 GLsizei width
, GLsizei height
, GLsizei depth
,
3616 GLenum format
, GLsizei imageSize
, const GLvoid
*data
)
3618 struct gl_texture_object
*texObj
;
3619 struct gl_texture_image
*texImage
;
3621 GET_CURRENT_CONTEXT(ctx
);
3622 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3624 error
= compressed_subtexture_error_check(ctx
, dims
, target
, level
,
3625 xoffset
, 0, 0, /* pos */
3626 width
, height
, depth
, /* size */
3629 _mesa_error(ctx
, error
, "glCompressedTexSubImage%uD", dims
);
3633 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3635 _mesa_lock_texture(ctx
, texObj
);
3637 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3640 if (compressed_subtexture_error_check2(ctx
, dims
, width
, height
, depth
,
3641 format
, texImage
)) {
3642 /* error was recorded */
3644 else if (width
> 0 && height
> 0 && depth
> 0) {
3645 ctx
->Driver
.CompressedTexSubImage(ctx
, dims
, texImage
,
3646 xoffset
, yoffset
, zoffset
,
3647 width
, height
, depth
,
3648 format
, imageSize
, data
);
3650 check_gen_mipmap(ctx
, target
, texObj
, level
);
3652 ctx
->NewState
|= _NEW_TEXTURE
;
3655 _mesa_unlock_texture(ctx
, texObj
);
3660 _mesa_CompressedTexSubImage1DARB(GLenum target
, GLint level
, GLint xoffset
,
3661 GLsizei width
, GLenum format
,
3662 GLsizei imageSize
, const GLvoid
*data
)
3664 compressed_tex_sub_image(1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
3665 format
, imageSize
, data
);
3670 _mesa_CompressedTexSubImage2DARB(GLenum target
, GLint level
, GLint xoffset
,
3671 GLint yoffset
, GLsizei width
, GLsizei height
,
3672 GLenum format
, GLsizei imageSize
,
3675 compressed_tex_sub_image(2, target
, level
, xoffset
, yoffset
, 0,
3676 width
, height
, 1, format
, imageSize
, data
);
3681 _mesa_CompressedTexSubImage3DARB(GLenum target
, GLint level
, GLint xoffset
,
3682 GLint yoffset
, GLint zoffset
, GLsizei width
,
3683 GLsizei height
, GLsizei depth
, GLenum format
,
3684 GLsizei imageSize
, const GLvoid
*data
)
3686 compressed_tex_sub_image(3, target
, level
, xoffset
, yoffset
, zoffset
,
3687 width
, height
, depth
, format
, imageSize
, data
);
3691 get_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3693 switch (internalFormat
) {
3695 return MESA_FORMAT_A8
;
3697 return MESA_FORMAT_A16
;
3698 case GL_ALPHA16F_ARB
:
3699 return MESA_FORMAT_ALPHA_FLOAT16
;
3700 case GL_ALPHA32F_ARB
:
3701 return MESA_FORMAT_ALPHA_FLOAT32
;
3702 case GL_ALPHA8I_EXT
:
3703 return MESA_FORMAT_ALPHA_INT8
;
3704 case GL_ALPHA16I_EXT
:
3705 return MESA_FORMAT_ALPHA_INT16
;
3706 case GL_ALPHA32I_EXT
:
3707 return MESA_FORMAT_ALPHA_INT32
;
3708 case GL_ALPHA8UI_EXT
:
3709 return MESA_FORMAT_ALPHA_UINT8
;
3710 case GL_ALPHA16UI_EXT
:
3711 return MESA_FORMAT_ALPHA_UINT16
;
3712 case GL_ALPHA32UI_EXT
:
3713 return MESA_FORMAT_ALPHA_UINT32
;
3715 return MESA_FORMAT_L8
;
3716 case GL_LUMINANCE16
:
3717 return MESA_FORMAT_L16
;
3718 case GL_LUMINANCE16F_ARB
:
3719 return MESA_FORMAT_LUMINANCE_FLOAT16
;
3720 case GL_LUMINANCE32F_ARB
:
3721 return MESA_FORMAT_LUMINANCE_FLOAT32
;
3722 case GL_LUMINANCE8I_EXT
:
3723 return MESA_FORMAT_LUMINANCE_INT8
;
3724 case GL_LUMINANCE16I_EXT
:
3725 return MESA_FORMAT_LUMINANCE_INT16
;
3726 case GL_LUMINANCE32I_EXT
:
3727 return MESA_FORMAT_LUMINANCE_INT32
;
3728 case GL_LUMINANCE8UI_EXT
:
3729 return MESA_FORMAT_LUMINANCE_UINT8
;
3730 case GL_LUMINANCE16UI_EXT
:
3731 return MESA_FORMAT_LUMINANCE_UINT16
;
3732 case GL_LUMINANCE32UI_EXT
:
3733 return MESA_FORMAT_LUMINANCE_UINT32
;
3734 case GL_LUMINANCE8_ALPHA8
:
3735 return MESA_FORMAT_AL88
;
3736 case GL_LUMINANCE16_ALPHA16
:
3737 return MESA_FORMAT_AL1616
;
3738 case GL_LUMINANCE_ALPHA16F_ARB
:
3739 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
;
3740 case GL_LUMINANCE_ALPHA32F_ARB
:
3741 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
;
3742 case GL_LUMINANCE_ALPHA8I_EXT
:
3743 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3744 case GL_LUMINANCE_ALPHA16I_EXT
:
3745 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3746 case GL_LUMINANCE_ALPHA32I_EXT
:
3747 return MESA_FORMAT_LUMINANCE_ALPHA_INT16
;
3748 case GL_LUMINANCE_ALPHA8UI_EXT
:
3749 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8
;
3750 case GL_LUMINANCE_ALPHA16UI_EXT
:
3751 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16
;
3752 case GL_LUMINANCE_ALPHA32UI_EXT
:
3753 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32
;
3755 return MESA_FORMAT_I8
;
3756 case GL_INTENSITY16
:
3757 return MESA_FORMAT_I16
;
3758 case GL_INTENSITY16F_ARB
:
3759 return MESA_FORMAT_INTENSITY_FLOAT16
;
3760 case GL_INTENSITY32F_ARB
:
3761 return MESA_FORMAT_INTENSITY_FLOAT32
;
3762 case GL_INTENSITY8I_EXT
:
3763 return MESA_FORMAT_INTENSITY_INT8
;
3764 case GL_INTENSITY16I_EXT
:
3765 return MESA_FORMAT_INTENSITY_INT16
;
3766 case GL_INTENSITY32I_EXT
:
3767 return MESA_FORMAT_INTENSITY_INT32
;
3768 case GL_INTENSITY8UI_EXT
:
3769 return MESA_FORMAT_INTENSITY_UINT8
;
3770 case GL_INTENSITY16UI_EXT
:
3771 return MESA_FORMAT_INTENSITY_UINT16
;
3772 case GL_INTENSITY32UI_EXT
:
3773 return MESA_FORMAT_INTENSITY_UINT32
;
3775 return MESA_FORMAT_RGBA8888_REV
;
3777 return MESA_FORMAT_RGBA_16
;
3778 case GL_RGBA16F_ARB
:
3779 return MESA_FORMAT_RGBA_FLOAT16
;
3780 case GL_RGBA32F_ARB
:
3781 return MESA_FORMAT_RGBA_FLOAT32
;
3783 return MESA_FORMAT_RGBA_INT8
;
3784 case GL_RGBA16I_EXT
:
3785 return MESA_FORMAT_RGBA_INT16
;
3786 case GL_RGBA32I_EXT
:
3787 return MESA_FORMAT_RGBA_INT32
;
3788 case GL_RGBA8UI_EXT
:
3789 return MESA_FORMAT_RGBA_UINT8
;
3790 case GL_RGBA16UI_EXT
:
3791 return MESA_FORMAT_RGBA_UINT16
;
3792 case GL_RGBA32UI_EXT
:
3793 return MESA_FORMAT_RGBA_UINT32
;
3796 return MESA_FORMAT_GR88
;
3798 return MESA_FORMAT_RG1616
;
3800 return MESA_FORMAT_RG_FLOAT16
;
3802 return MESA_FORMAT_RG_FLOAT32
;
3804 return MESA_FORMAT_RG_INT8
;
3806 return MESA_FORMAT_RG_INT16
;
3808 return MESA_FORMAT_RG_INT32
;
3810 return MESA_FORMAT_RG_UINT8
;
3812 return MESA_FORMAT_RG_UINT16
;
3814 return MESA_FORMAT_RG_UINT32
;
3817 return MESA_FORMAT_R8
;
3819 return MESA_FORMAT_R16
;
3821 return MESA_FORMAT_R_FLOAT16
;
3823 return MESA_FORMAT_R_FLOAT32
;
3825 return MESA_FORMAT_R_INT8
;
3827 return MESA_FORMAT_R_INT16
;
3829 return MESA_FORMAT_R_INT32
;
3831 return MESA_FORMAT_R_UINT8
;
3833 return MESA_FORMAT_R_UINT16
;
3835 return MESA_FORMAT_R_UINT32
;
3838 return MESA_FORMAT_NONE
;
3843 validate_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3845 gl_format format
= get_texbuffer_format(ctx
, internalFormat
);
3848 if (format
== MESA_FORMAT_NONE
)
3849 return MESA_FORMAT_NONE
;
3851 datatype
= _mesa_get_format_datatype(format
);
3852 if (datatype
== GL_FLOAT
&& !ctx
->Extensions
.ARB_texture_float
)
3853 return MESA_FORMAT_NONE
;
3855 if (datatype
== GL_HALF_FLOAT
&& !ctx
->Extensions
.ARB_half_float_pixel
)
3856 return MESA_FORMAT_NONE
;
3858 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make
3859 * any mention of R/RG formats, but they appear in the GL 3.1 core
3862 if (ctx
->VersionMajor
< 3 ||
3863 (ctx
->VersionMajor
== 3 && ctx
->VersionMinor
== 0)) {
3864 GLenum base_format
= _mesa_get_format_base_format(format
);
3866 if (base_format
== GL_R
|| base_format
== GL_RG
)
3867 return MESA_FORMAT_NONE
;
3873 /** GL_ARB_texture_buffer_object */
3875 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
)
3877 struct gl_texture_object
*texObj
;
3878 struct gl_buffer_object
*bufObj
;
3881 GET_CURRENT_CONTEXT(ctx
);
3882 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx
);
3884 if (!ctx
->Extensions
.ARB_texture_buffer_object
) {
3885 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer");
3889 if (target
!= GL_TEXTURE_BUFFER_ARB
) {
3890 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(target)");
3894 format
= validate_texbuffer_format(ctx
, internalFormat
);
3895 if (format
== MESA_FORMAT_NONE
) {
3896 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(internalFormat 0x%x)",
3901 bufObj
= _mesa_lookup_bufferobj(ctx
, buffer
);
3902 if (buffer
&& !bufObj
) {
3903 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer(buffer %u)", buffer
);
3907 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3909 _mesa_lock_texture(ctx
, texObj
);
3911 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, bufObj
);
3912 texObj
->BufferObjectFormat
= internalFormat
;
3913 texObj
->_BufferObjectFormat
= format
;
3915 _mesa_unlock_texture(ctx
, texObj
);