2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 * Texture image-related functions.
33 #include "bufferobj.h"
37 #include "framebuffer.h"
42 #include "mfeatures.h"
44 #include "texcompress.h"
45 #include "texcompress_cpal.h"
50 #include "glformats.h"
54 * State changes which we care about for glCopyTex[Sub]Image() calls.
55 * In particular, we care about pixel transfer state and buffer state
56 * (such as glReadBuffer to make sure we read from the right renderbuffer).
58 #define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
63 * Return the simple base format for a given internal texture format.
64 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
66 * \param ctx GL context.
67 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
69 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
70 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
72 * This is the format which is used during texture application (i.e. the
73 * texture format and env mode determine the arithmetic used.
76 _mesa_base_tex_format( struct gl_context
*ctx
, GLint internalFormat
)
78 switch (internalFormat
) {
84 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_ALPHA
: -1;
91 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_LUMINANCE
: -1;
93 case GL_LUMINANCE_ALPHA
:
94 case GL_LUMINANCE4_ALPHA4
:
95 case GL_LUMINANCE6_ALPHA2
:
96 case GL_LUMINANCE8_ALPHA8
:
97 case GL_LUMINANCE12_ALPHA4
:
98 case GL_LUMINANCE12_ALPHA12
:
99 case GL_LUMINANCE16_ALPHA16
:
100 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_LUMINANCE_ALPHA
: -1;
106 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_INTENSITY
: -1;
108 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_RGB
: -1;
119 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_RGBA
: -1;
133 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
135 if (_mesa_is_gles(ctx
)) {
136 switch (internalFormat
) {
144 if (ctx
->Extensions
.ARB_ES2_compatibility
) {
145 switch (internalFormat
) {
153 if (ctx
->Extensions
.ARB_depth_texture
) {
154 switch (internalFormat
) {
155 case GL_DEPTH_COMPONENT
:
156 case GL_DEPTH_COMPONENT16
:
157 case GL_DEPTH_COMPONENT24
:
158 case GL_DEPTH_COMPONENT32
:
159 return GL_DEPTH_COMPONENT
;
165 switch (internalFormat
) {
166 case GL_COMPRESSED_ALPHA
:
168 case GL_COMPRESSED_LUMINANCE
:
170 case GL_COMPRESSED_LUMINANCE_ALPHA
:
171 return GL_LUMINANCE_ALPHA
;
172 case GL_COMPRESSED_INTENSITY
:
174 case GL_COMPRESSED_RGB
:
176 case GL_COMPRESSED_RGBA
:
182 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
) {
183 switch (internalFormat
) {
184 case GL_COMPRESSED_RGB_FXT1_3DFX
:
186 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
193 /* Assume that the ANGLE flag will always be set if the EXT flag is set.
195 if (ctx
->Extensions
.ANGLE_texture_compression_dxt
) {
196 switch (internalFormat
) {
197 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
199 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
200 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
201 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
208 if (_mesa_is_desktop_gl(ctx
)
209 && ctx
->Extensions
.ANGLE_texture_compression_dxt
) {
210 switch (internalFormat
) {
222 if (ctx
->Extensions
.MESA_ycbcr_texture
) {
223 if (internalFormat
== GL_YCBCR_MESA
)
224 return GL_YCBCR_MESA
;
227 if (ctx
->Extensions
.ARB_texture_float
) {
228 switch (internalFormat
) {
229 case GL_ALPHA16F_ARB
:
230 case GL_ALPHA32F_ARB
:
238 case GL_INTENSITY16F_ARB
:
239 case GL_INTENSITY32F_ARB
:
241 case GL_LUMINANCE16F_ARB
:
242 case GL_LUMINANCE32F_ARB
:
244 case GL_LUMINANCE_ALPHA16F_ARB
:
245 case GL_LUMINANCE_ALPHA32F_ARB
:
246 return GL_LUMINANCE_ALPHA
;
252 if (ctx
->Extensions
.ATI_envmap_bumpmap
) {
253 switch (internalFormat
) {
262 if (ctx
->Extensions
.EXT_texture_snorm
) {
263 switch (internalFormat
) {
278 case GL_RGBA16_SNORM
:
281 case GL_ALPHA8_SNORM
:
282 case GL_ALPHA16_SNORM
:
284 case GL_LUMINANCE_SNORM
:
285 case GL_LUMINANCE8_SNORM
:
286 case GL_LUMINANCE16_SNORM
:
288 case GL_LUMINANCE_ALPHA_SNORM
:
289 case GL_LUMINANCE8_ALPHA8_SNORM
:
290 case GL_LUMINANCE16_ALPHA16_SNORM
:
291 return GL_LUMINANCE_ALPHA
;
292 case GL_INTENSITY_SNORM
:
293 case GL_INTENSITY8_SNORM
:
294 case GL_INTENSITY16_SNORM
:
301 if (ctx
->Extensions
.EXT_packed_depth_stencil
) {
302 switch (internalFormat
) {
303 case GL_DEPTH_STENCIL_EXT
:
304 case GL_DEPTH24_STENCIL8_EXT
:
305 return GL_DEPTH_STENCIL_EXT
;
311 if (ctx
->Extensions
.EXT_texture_sRGB
) {
312 switch (internalFormat
) {
315 case GL_COMPRESSED_SRGB_EXT
:
316 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
318 case GL_SRGB_ALPHA_EXT
:
319 case GL_SRGB8_ALPHA8_EXT
:
320 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
321 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
322 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
323 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
325 case GL_SLUMINANCE_ALPHA_EXT
:
326 case GL_SLUMINANCE8_ALPHA8_EXT
:
327 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
328 return GL_LUMINANCE_ALPHA
;
329 case GL_SLUMINANCE_EXT
:
330 case GL_SLUMINANCE8_EXT
:
331 case GL_COMPRESSED_SLUMINANCE_EXT
:
338 if (ctx
->Version
>= 30 ||
339 ctx
->Extensions
.EXT_texture_integer
) {
340 switch (internalFormat
) {
342 case GL_RGBA16UI_EXT
:
343 case GL_RGBA32UI_EXT
:
359 if (ctx
->Extensions
.EXT_texture_integer
) {
360 switch (internalFormat
) {
361 case GL_ALPHA8UI_EXT
:
362 case GL_ALPHA16UI_EXT
:
363 case GL_ALPHA32UI_EXT
:
365 case GL_ALPHA16I_EXT
:
366 case GL_ALPHA32I_EXT
:
368 case GL_INTENSITY8UI_EXT
:
369 case GL_INTENSITY16UI_EXT
:
370 case GL_INTENSITY32UI_EXT
:
371 case GL_INTENSITY8I_EXT
:
372 case GL_INTENSITY16I_EXT
:
373 case GL_INTENSITY32I_EXT
:
375 case GL_LUMINANCE8UI_EXT
:
376 case GL_LUMINANCE16UI_EXT
:
377 case GL_LUMINANCE32UI_EXT
:
378 case GL_LUMINANCE8I_EXT
:
379 case GL_LUMINANCE16I_EXT
:
380 case GL_LUMINANCE32I_EXT
:
382 case GL_LUMINANCE_ALPHA8UI_EXT
:
383 case GL_LUMINANCE_ALPHA16UI_EXT
:
384 case GL_LUMINANCE_ALPHA32UI_EXT
:
385 case GL_LUMINANCE_ALPHA8I_EXT
:
386 case GL_LUMINANCE_ALPHA16I_EXT
:
387 case GL_LUMINANCE_ALPHA32I_EXT
:
388 return GL_LUMINANCE_ALPHA
;
394 if (ctx
->Extensions
.ARB_texture_rg
) {
395 switch (internalFormat
) {
397 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
399 if (!ctx
->Extensions
.ARB_half_float_pixel
)
403 if (!ctx
->Extensions
.ARB_texture_float
)
412 if (ctx
->Version
< 30 && !ctx
->Extensions
.EXT_texture_integer
)
418 case GL_COMPRESSED_RED
:
422 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
424 if (!ctx
->Extensions
.ARB_half_float_pixel
)
428 if (!ctx
->Extensions
.ARB_texture_float
)
437 if (ctx
->Version
< 30 && !ctx
->Extensions
.EXT_texture_integer
)
443 case GL_COMPRESSED_RG
:
450 if (ctx
->Extensions
.EXT_texture_shared_exponent
) {
451 switch (internalFormat
) {
459 if (ctx
->Extensions
.EXT_packed_float
) {
460 switch (internalFormat
) {
461 case GL_R11F_G11F_B10F_EXT
:
468 if (ctx
->Extensions
.ARB_depth_buffer_float
) {
469 switch (internalFormat
) {
470 case GL_DEPTH_COMPONENT32F
:
471 return GL_DEPTH_COMPONENT
;
472 case GL_DEPTH32F_STENCIL8
:
473 return GL_DEPTH_STENCIL
;
479 if (ctx
->Extensions
.ARB_texture_compression_rgtc
) {
480 switch (internalFormat
) {
481 case GL_COMPRESSED_RED_RGTC1
:
482 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
484 case GL_COMPRESSED_RG_RGTC2
:
485 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
492 if (ctx
->Extensions
.EXT_texture_compression_latc
) {
493 switch (internalFormat
) {
494 case GL_COMPRESSED_LUMINANCE_LATC1_EXT
:
495 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT
:
497 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
:
498 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT
:
499 return GL_LUMINANCE_ALPHA
;
505 if (ctx
->Extensions
.ATI_texture_compression_3dc
) {
506 switch (internalFormat
) {
507 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
508 return GL_LUMINANCE_ALPHA
;
514 if (ctx
->Extensions
.OES_compressed_ETC1_RGB8_texture
) {
515 switch (internalFormat
) {
516 case GL_ETC1_RGB8_OES
:
523 if (_mesa_is_gles3(ctx
)) {
524 switch (internalFormat
) {
525 case GL_COMPRESSED_RGB8_ETC2
:
526 case GL_COMPRESSED_SRGB8_ETC2
:
528 case GL_COMPRESSED_RGBA8_ETC2_EAC
:
529 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
:
530 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
531 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
533 case GL_COMPRESSED_R11_EAC
:
534 case GL_COMPRESSED_SIGNED_R11_EAC
:
536 case GL_COMPRESSED_RG11_EAC
:
537 case GL_COMPRESSED_SIGNED_RG11_EAC
:
544 if (ctx
->API
== API_OPENGLES
) {
545 switch (internalFormat
) {
546 case GL_PALETTE4_RGB8_OES
:
547 case GL_PALETTE4_R5_G6_B5_OES
:
548 case GL_PALETTE8_RGB8_OES
:
549 case GL_PALETTE8_R5_G6_B5_OES
:
551 case GL_PALETTE4_RGBA8_OES
:
552 case GL_PALETTE8_RGB5_A1_OES
:
553 case GL_PALETTE4_RGBA4_OES
:
554 case GL_PALETTE4_RGB5_A1_OES
:
555 case GL_PALETTE8_RGBA8_OES
:
556 case GL_PALETTE8_RGBA4_OES
:
563 return -1; /* error */
568 * For cube map faces, return a face index in [0,5].
569 * For other targets return 0;
572 _mesa_tex_target_to_face(GLenum target
)
574 if (_mesa_is_cube_face(target
))
575 return (GLuint
) target
- (GLuint
) GL_TEXTURE_CUBE_MAP_POSITIVE_X
;
583 * Install gl_texture_image in a gl_texture_object according to the target
584 * and level parameters.
586 * \param tObj texture object.
587 * \param target texture target.
588 * \param level image level.
589 * \param texImage texture image.
592 set_tex_image(struct gl_texture_object
*tObj
,
593 GLenum target
, GLint level
,
594 struct gl_texture_image
*texImage
)
596 const GLuint face
= _mesa_tex_target_to_face(target
);
600 if (target
== GL_TEXTURE_RECTANGLE_NV
|| target
== GL_TEXTURE_EXTERNAL_OES
)
603 tObj
->Image
[face
][level
] = texImage
;
605 /* Set the 'back' pointer */
606 texImage
->TexObject
= tObj
;
607 texImage
->Level
= level
;
608 texImage
->Face
= face
;
613 * Allocate a texture image structure.
615 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
618 * \return a pointer to gl_texture_image struct with all fields initialized to
621 struct gl_texture_image
*
622 _mesa_new_texture_image( struct gl_context
*ctx
)
625 return CALLOC_STRUCT(gl_texture_image
);
630 * Free a gl_texture_image and associated data.
631 * This function is a fallback called via ctx->Driver.DeleteTextureImage().
633 * \param texImage texture image.
635 * Free the texture image structure and the associated image data.
638 _mesa_delete_texture_image(struct gl_context
*ctx
,
639 struct gl_texture_image
*texImage
)
641 /* Free texImage->Data and/or any other driver-specific texture
644 ASSERT(ctx
->Driver
.FreeTextureImageBuffer
);
645 ctx
->Driver
.FreeTextureImageBuffer( ctx
, texImage
);
651 * Test if a target is a proxy target.
653 * \param target texture target.
655 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
658 _mesa_is_proxy_texture(GLenum target
)
661 * NUM_TEXTURE_TARGETS should match number of terms below, except there's no
662 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
664 assert(NUM_TEXTURE_TARGETS
== 8 + 2);
666 return (target
== GL_PROXY_TEXTURE_1D
||
667 target
== GL_PROXY_TEXTURE_2D
||
668 target
== GL_PROXY_TEXTURE_3D
||
669 target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
670 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
||
671 target
== GL_PROXY_TEXTURE_1D_ARRAY_EXT
||
672 target
== GL_PROXY_TEXTURE_2D_ARRAY_EXT
||
673 target
== GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
);
678 * Return the proxy target which corresponds to the given texture target
681 _mesa_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
;
711 case GL_TEXTURE_CUBE_MAP_ARRAY
:
712 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
713 return GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
;
715 _mesa_problem(NULL
, "unexpected target in _mesa_get_proxy_target()");
722 * Get the texture object that corresponds to the target of the given
723 * texture unit. The target should have already been checked for validity.
725 * \param ctx GL context.
726 * \param texUnit texture unit.
727 * \param target texture target.
729 * \return pointer to the texture object on success, or NULL on failure.
731 struct gl_texture_object
*
732 _mesa_select_tex_object(struct gl_context
*ctx
,
733 const struct gl_texture_unit
*texUnit
,
736 const GLboolean arrayTex
= (ctx
->Extensions
.MESA_texture_array
||
737 ctx
->Extensions
.EXT_texture_array
);
741 return texUnit
->CurrentTex
[TEXTURE_1D_INDEX
];
742 case GL_PROXY_TEXTURE_1D
:
743 return ctx
->Texture
.ProxyTex
[TEXTURE_1D_INDEX
];
745 return texUnit
->CurrentTex
[TEXTURE_2D_INDEX
];
746 case GL_PROXY_TEXTURE_2D
:
747 return ctx
->Texture
.ProxyTex
[TEXTURE_2D_INDEX
];
749 return texUnit
->CurrentTex
[TEXTURE_3D_INDEX
];
750 case GL_PROXY_TEXTURE_3D
:
751 return ctx
->Texture
.ProxyTex
[TEXTURE_3D_INDEX
];
752 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
753 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
754 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
755 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
756 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
757 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
758 case GL_TEXTURE_CUBE_MAP_ARB
:
759 return ctx
->Extensions
.ARB_texture_cube_map
760 ? texUnit
->CurrentTex
[TEXTURE_CUBE_INDEX
] : NULL
;
761 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
762 return ctx
->Extensions
.ARB_texture_cube_map
763 ? ctx
->Texture
.ProxyTex
[TEXTURE_CUBE_INDEX
] : NULL
;
764 case GL_TEXTURE_CUBE_MAP_ARRAY
:
765 return ctx
->Extensions
.ARB_texture_cube_map_array
766 ? texUnit
->CurrentTex
[TEXTURE_CUBE_ARRAY_INDEX
] : NULL
;
767 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
768 return ctx
->Extensions
.ARB_texture_cube_map_array
769 ? ctx
->Texture
.ProxyTex
[TEXTURE_CUBE_ARRAY_INDEX
] : NULL
;
770 case GL_TEXTURE_RECTANGLE_NV
:
771 return ctx
->Extensions
.NV_texture_rectangle
772 ? texUnit
->CurrentTex
[TEXTURE_RECT_INDEX
] : NULL
;
773 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
774 return ctx
->Extensions
.NV_texture_rectangle
775 ? ctx
->Texture
.ProxyTex
[TEXTURE_RECT_INDEX
] : NULL
;
776 case GL_TEXTURE_1D_ARRAY_EXT
:
777 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
778 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
779 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
780 case GL_TEXTURE_2D_ARRAY_EXT
:
781 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
782 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
783 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
784 case GL_TEXTURE_BUFFER
:
785 return ctx
->API
== API_OPENGL_CORE
&&
786 ctx
->Extensions
.ARB_texture_buffer_object
?
787 texUnit
->CurrentTex
[TEXTURE_BUFFER_INDEX
] : NULL
;
788 case GL_TEXTURE_EXTERNAL_OES
:
789 return ctx
->Extensions
.OES_EGL_image_external
790 ? texUnit
->CurrentTex
[TEXTURE_EXTERNAL_INDEX
] : NULL
;
792 _mesa_problem(NULL
, "bad target in _mesa_select_tex_object()");
799 * Return pointer to texture object for given target on current texture unit.
801 struct gl_texture_object
*
802 _mesa_get_current_tex_object(struct gl_context
*ctx
, GLenum target
)
804 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
805 return _mesa_select_tex_object(ctx
, texUnit
, target
);
810 * Get a texture image pointer from a texture object, given a texture
811 * target and mipmap level. The target and level parameters should
812 * have already been error-checked.
814 * \param ctx GL context.
815 * \param texObj texture unit.
816 * \param target texture target.
817 * \param level image level.
819 * \return pointer to the texture image structure, or NULL on failure.
821 struct gl_texture_image
*
822 _mesa_select_tex_image(struct gl_context
*ctx
,
823 const struct gl_texture_object
*texObj
,
824 GLenum target
, GLint level
)
826 const GLuint face
= _mesa_tex_target_to_face(target
);
830 ASSERT(level
< MAX_TEXTURE_LEVELS
);
832 return texObj
->Image
[face
][level
];
837 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
838 * it and install it. Only return NULL if passed a bad parameter or run
841 struct gl_texture_image
*
842 _mesa_get_tex_image(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
843 GLenum target
, GLint level
)
845 struct gl_texture_image
*texImage
;
850 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
852 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
854 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "texture image allocation");
858 set_tex_image(texObj
, target
, level
, texImage
);
866 * Return pointer to the specified proxy texture image.
867 * Note that proxy textures are per-context, not per-texture unit.
868 * \return pointer to texture image or NULL if invalid target, invalid
869 * level, or out of memory.
871 static struct gl_texture_image
*
872 get_proxy_tex_image(struct gl_context
*ctx
, GLenum target
, GLint level
)
874 struct gl_texture_image
*texImage
;
881 case GL_PROXY_TEXTURE_1D
:
882 if (level
>= ctx
->Const
.MaxTextureLevels
)
884 texIndex
= TEXTURE_1D_INDEX
;
886 case GL_PROXY_TEXTURE_2D
:
887 if (level
>= ctx
->Const
.MaxTextureLevels
)
889 texIndex
= TEXTURE_2D_INDEX
;
891 case GL_PROXY_TEXTURE_3D
:
892 if (level
>= ctx
->Const
.Max3DTextureLevels
)
894 texIndex
= TEXTURE_3D_INDEX
;
896 case GL_PROXY_TEXTURE_CUBE_MAP
:
897 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
899 texIndex
= TEXTURE_CUBE_INDEX
;
901 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
904 texIndex
= TEXTURE_RECT_INDEX
;
906 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
907 if (level
>= ctx
->Const
.MaxTextureLevels
)
909 texIndex
= TEXTURE_1D_ARRAY_INDEX
;
911 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
912 if (level
>= ctx
->Const
.MaxTextureLevels
)
914 texIndex
= TEXTURE_2D_ARRAY_INDEX
;
916 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
917 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
919 texIndex
= TEXTURE_CUBE_ARRAY_INDEX
;
925 texImage
= ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
];
927 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
929 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "proxy texture allocation");
932 ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
] = texImage
;
933 /* Set the 'back' pointer */
934 texImage
->TexObject
= ctx
->Texture
.ProxyTex
[texIndex
];
941 * Get the maximum number of allowed mipmap levels.
943 * \param ctx GL context.
944 * \param target texture target.
946 * \return the maximum number of allowed mipmap levels for the given
947 * texture target, or zero if passed a bad target.
952 _mesa_max_texture_levels(struct gl_context
*ctx
, GLenum target
)
956 case GL_PROXY_TEXTURE_1D
:
958 case GL_PROXY_TEXTURE_2D
:
959 return ctx
->Const
.MaxTextureLevels
;
961 case GL_PROXY_TEXTURE_3D
:
962 return ctx
->Const
.Max3DTextureLevels
;
963 case GL_TEXTURE_CUBE_MAP
:
964 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
965 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
966 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
967 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
968 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
969 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
970 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
971 return ctx
->Extensions
.ARB_texture_cube_map
972 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
973 case GL_TEXTURE_RECTANGLE_NV
:
974 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
975 return ctx
->Extensions
.NV_texture_rectangle
? 1 : 0;
976 case GL_TEXTURE_1D_ARRAY_EXT
:
977 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
978 case GL_TEXTURE_2D_ARRAY_EXT
:
979 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
980 return (ctx
->Extensions
.MESA_texture_array
||
981 ctx
->Extensions
.EXT_texture_array
)
982 ? ctx
->Const
.MaxTextureLevels
: 0;
983 case GL_TEXTURE_CUBE_MAP_ARRAY
:
984 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
985 return ctx
->Extensions
.ARB_texture_cube_map_array
986 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
987 case GL_TEXTURE_BUFFER
:
988 return ctx
->API
== API_OPENGL_CORE
&&
989 ctx
->Extensions
.ARB_texture_buffer_object
? 1 : 0;
990 case GL_TEXTURE_EXTERNAL_OES
:
993 return 0; /* bad target */
999 * Return number of dimensions per mipmap level for the given texture target.
1002 _mesa_get_texture_dimensions(GLenum target
)
1006 case GL_PROXY_TEXTURE_1D
:
1009 case GL_TEXTURE_RECTANGLE
:
1010 case GL_TEXTURE_CUBE_MAP
:
1011 case GL_PROXY_TEXTURE_2D
:
1012 case GL_PROXY_TEXTURE_RECTANGLE
:
1013 case GL_PROXY_TEXTURE_CUBE_MAP
:
1014 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1015 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1016 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1017 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1018 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1019 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1020 case GL_TEXTURE_1D_ARRAY
:
1021 case GL_PROXY_TEXTURE_1D_ARRAY
:
1022 case GL_TEXTURE_EXTERNAL_OES
:
1025 case GL_PROXY_TEXTURE_3D
:
1026 case GL_TEXTURE_2D_ARRAY
:
1027 case GL_PROXY_TEXTURE_2D_ARRAY
:
1028 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1029 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1031 case GL_TEXTURE_BUFFER
:
1034 _mesa_problem(NULL
, "invalid target 0x%x in get_texture_dimensions()",
1042 * Return the maximum number of mipmap levels for the given target
1043 * and the dimensions.
1044 * The dimensions are expected not to include the border.
1047 _mesa_get_tex_max_num_levels(GLenum target
, GLsizei width
, GLsizei height
,
1054 case GL_TEXTURE_1D_ARRAY
:
1057 case GL_TEXTURE_CUBE_MAP
:
1058 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1059 ASSERT(width
== height
);
1063 case GL_TEXTURE_2D_ARRAY
:
1064 size
= MAX2(width
, height
);
1067 size
= MAX3(width
, height
, depth
);
1069 case GL_TEXTURE_RECTANGLE
:
1070 case GL_TEXTURE_EXTERNAL_OES
:
1077 return _mesa_logbase2(size
) + 1;
1081 #if 000 /* not used anymore */
1083 * glTexImage[123]D can accept a NULL image pointer. In this case we
1084 * create a texture image with unspecified image contents per the OpenGL
1088 make_null_texture(GLint width
, GLint height
, GLint depth
, GLenum format
)
1090 const GLint components
= _mesa_components_in_format(format
);
1091 const GLint numPixels
= width
* height
* depth
;
1092 GLubyte
*data
= (GLubyte
*) malloc(numPixels
* components
* sizeof(GLubyte
));
1096 * Let's see if anyone finds this. If glTexImage2D() is called with
1097 * a NULL image pointer then load the texture image with something
1098 * interesting instead of leaving it indeterminate.
1101 static const char message
[8][32] = {
1102 " X X XXXXX XXX X ",
1103 " XX XX X X X X X ",
1105 " X X XXXX XXX XXXXX ",
1108 " X X XXXXX XXX X X ",
1112 GLubyte
*imgPtr
= data
;
1114 for (h
= 0; h
< depth
; h
++) {
1115 for (i
= 0; i
< height
; i
++) {
1116 GLint srcRow
= 7 - (i
% 8);
1117 for (j
= 0; j
< width
; j
++) {
1118 GLint srcCol
= j
% 32;
1119 GLubyte texel
= (message
[srcRow
][srcCol
]=='X') ? 255 : 70;
1120 for (k
= 0; k
< components
; k
++) {
1136 * Set the size and format-related fields of a gl_texture_image struct
1137 * to zero. This is used when a proxy texture test fails.
1140 clear_teximage_fields(struct gl_texture_image
*img
)
1143 img
->_BaseFormat
= 0;
1144 img
->InternalFormat
= 0;
1153 img
->HeightLog2
= 0;
1155 img
->TexFormat
= MESA_FORMAT_NONE
;
1160 * Initialize basic fields of the gl_texture_image struct.
1162 * \param ctx GL context.
1163 * \param img texture image structure to be initialized.
1164 * \param width image width.
1165 * \param height image height.
1166 * \param depth image depth.
1167 * \param border image border.
1168 * \param internalFormat internal format.
1169 * \param format the actual hardware format (one of MESA_FORMAT_*)
1171 * Fills in the fields of \p img with the given information.
1172 * Note: width, height and depth include the border.
1175 _mesa_init_teximage_fields(struct gl_context
*ctx
,
1176 struct gl_texture_image
*img
,
1177 GLsizei width
, GLsizei height
, GLsizei depth
,
1178 GLint border
, GLenum internalFormat
,
1184 ASSERT(height
>= 0);
1187 target
= img
->TexObject
->Target
;
1188 img
->_BaseFormat
= _mesa_base_tex_format( ctx
, internalFormat
);
1189 ASSERT(img
->_BaseFormat
> 0);
1190 img
->InternalFormat
= internalFormat
;
1191 img
->Border
= border
;
1193 img
->Height
= height
;
1196 img
->Width2
= width
- 2 * border
; /* == 1 << img->WidthLog2; */
1197 img
->WidthLog2
= _mesa_logbase2(img
->Width2
);
1201 case GL_TEXTURE_BUFFER
:
1202 case GL_PROXY_TEXTURE_1D
:
1207 img
->HeightLog2
= 0;
1214 case GL_TEXTURE_1D_ARRAY
:
1215 case GL_PROXY_TEXTURE_1D_ARRAY
:
1216 img
->Height2
= height
; /* no border */
1217 img
->HeightLog2
= 0; /* not used */
1225 case GL_TEXTURE_RECTANGLE
:
1226 case GL_TEXTURE_CUBE_MAP
:
1227 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1228 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1229 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1230 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1231 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1232 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1233 case GL_TEXTURE_EXTERNAL_OES
:
1234 case GL_PROXY_TEXTURE_2D
:
1235 case GL_PROXY_TEXTURE_RECTANGLE
:
1236 case GL_PROXY_TEXTURE_CUBE_MAP
:
1237 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1238 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1245 case GL_TEXTURE_2D_ARRAY
:
1246 case GL_PROXY_TEXTURE_2D_ARRAY
:
1247 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1248 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1249 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1250 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1251 img
->Depth2
= depth
; /* no border */
1252 img
->DepthLog2
= 0; /* not used */
1255 case GL_PROXY_TEXTURE_3D
:
1256 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
1257 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
1258 img
->Depth2
= depth
- 2 * border
; /* == 1 << img->DepthLog2; */
1259 img
->DepthLog2
= _mesa_logbase2(img
->Depth2
);
1262 _mesa_problem(NULL
, "invalid target 0x%x in _mesa_init_teximage_fields()",
1267 _mesa_get_tex_max_num_levels(target
,
1268 img
->Width2
, img
->Height2
, img
->Depth2
);
1269 img
->TexFormat
= format
;
1274 * Free and clear fields of the gl_texture_image struct.
1276 * \param ctx GL context.
1277 * \param texImage texture image structure to be cleared.
1279 * After the call, \p texImage will have no data associated with it. Its
1280 * fields are cleared so that its parent object will test incomplete.
1283 _mesa_clear_texture_image(struct gl_context
*ctx
,
1284 struct gl_texture_image
*texImage
)
1286 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
1287 clear_teximage_fields(texImage
);
1292 * Check the width, height, depth and border of a texture image are legal.
1293 * Used by all the glTexImage, glCompressedTexImage and glCopyTexImage
1295 * The target and level parameters will have already been validated.
1296 * \return GL_TRUE if size is OK, GL_FALSE otherwise.
1299 _mesa_legal_texture_dimensions(struct gl_context
*ctx
, GLenum target
,
1300 GLint level
, GLint width
, GLint height
,
1301 GLint depth
, GLint border
)
1307 case GL_PROXY_TEXTURE_1D
:
1308 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1); /* level zero size */
1309 maxSize
>>= level
; /* level size */
1310 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1312 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1313 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1319 case GL_PROXY_TEXTURE_2D
:
1320 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1322 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1324 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1326 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1327 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1329 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1335 case GL_PROXY_TEXTURE_3D
:
1336 maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
1338 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1340 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1342 if (depth
< 2 * border
|| depth
> 2 * border
+ maxSize
)
1344 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1345 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1347 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1349 if (depth
> 0 && !_mesa_is_pow_two(depth
- 2 * border
))
1354 case GL_TEXTURE_RECTANGLE_NV
:
1355 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1358 maxSize
= ctx
->Const
.MaxTextureRectSize
;
1359 if (width
< 0 || width
> maxSize
)
1361 if (height
< 0 || height
> maxSize
)
1365 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1366 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1367 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1368 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1369 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1370 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1371 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
1372 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1374 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1376 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1378 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1379 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1381 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1386 case GL_TEXTURE_1D_ARRAY_EXT
:
1387 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1388 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1390 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1392 if (height
< 1 || height
> ctx
->Const
.MaxArrayTextureLayers
)
1394 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1395 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1400 case GL_TEXTURE_2D_ARRAY_EXT
:
1401 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1402 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1404 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1406 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1408 if (depth
< 1 || depth
> ctx
->Const
.MaxArrayTextureLayers
)
1410 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1411 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1413 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1418 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1419 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1420 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1421 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1423 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1425 if (depth
< 1 || depth
> ctx
->Const
.MaxArrayTextureLayers
)
1427 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
1429 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1430 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1432 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1437 _mesa_problem(ctx
, "Invalid target in _mesa_legal_texture_dimensions()");
1444 * Do error checking of xoffset, yoffset, zoffset, width, height and depth
1445 * for glTexSubImage, glCopyTexSubImage and glCompressedTexSubImage.
1446 * \param destImage the destination texture image.
1447 * \return GL_TRUE if error found, GL_FALSE otherwise.
1450 error_check_subtexture_dimensions(struct gl_context
*ctx
,
1451 const char *function
, GLuint dims
,
1452 const struct gl_texture_image
*destImage
,
1453 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1454 GLsizei subWidth
, GLsizei subHeight
,
1457 const GLenum target
= destImage
->TexObject
->Target
;
1462 _mesa_error(ctx
, GL_INVALID_VALUE
,
1463 "%s%dD(width=%d)", function
, dims
, subWidth
);
1467 if (dims
> 1 && subHeight
< 0) {
1468 _mesa_error(ctx
, GL_INVALID_VALUE
,
1469 "%s%dD(height=%d)", function
, dims
, subHeight
);
1473 if (dims
> 2 && subDepth
< 0) {
1474 _mesa_error(ctx
, GL_INVALID_VALUE
,
1475 "%s%dD(depth=%d)", function
, dims
, subDepth
);
1479 /* check xoffset and width */
1480 if (xoffset
< -destImage
->Border
) {
1481 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s%dD(xoffset)",
1486 if (xoffset
+ subWidth
> destImage
->Width
) {
1487 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s%dD(xoffset+width)",
1492 /* check yoffset and height */
1494 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : destImage
->Border
;
1495 if (yoffset
< -yBorder
) {
1496 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s%dD(yoffset)",
1500 if (yoffset
+ subHeight
> destImage
->Height
) {
1501 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s%dD(yoffset+height)",
1507 /* check zoffset and depth */
1509 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
) ? 0 : destImage
->Border
;
1510 if (zoffset
< -zBorder
) {
1511 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s3D(zoffset)", function
);
1514 if (zoffset
+ subDepth
> (GLint
) destImage
->Depth
) {
1515 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s3D(zoffset+depth)", function
);
1521 * The OpenGL spec (and GL_ARB_texture_compression) says only whole
1522 * compressed texture images can be updated. But, that restriction may be
1523 * relaxed for particular compressed formats. At this time, all the
1524 * compressed formats supported by Mesa allow sub-textures to be updated
1525 * along compressed block boundaries.
1527 _mesa_get_format_block_size(destImage
->TexFormat
, &bw
, &bh
);
1529 if (bw
!= 1 || bh
!= 1) {
1530 /* offset must be multiple of block size */
1531 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0)) {
1532 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1533 "%s%dD(xoffset = %d, yoffset = %d)",
1534 function
, dims
, xoffset
, yoffset
);
1538 /* size must be multiple of bw by bh or equal to whole texture size */
1539 if ((subWidth
% bw
!= 0) && subWidth
!= destImage
->Width
) {
1540 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1541 "%s%dD(width = %d)", function
, dims
, subWidth
);
1545 if ((subHeight
% bh
!= 0) && subHeight
!= destImage
->Height
) {
1546 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1547 "%s%dD(height = %d)", function
, dims
, subHeight
);
1559 * This is the fallback for Driver.TestProxyTexImage() for doing device-
1560 * specific texture image size checks.
1562 * A hardware driver might override this function if, for example, the
1563 * max 3D texture size is 512x512x64 (i.e. not a cube).
1565 * Note that width, height, depth == 0 is not an error. However, a
1566 * texture with zero width/height/depth will be considered "incomplete"
1567 * and texturing will effectively be disabled.
1569 * \param target any texture target/type
1570 * \param level as passed to glTexImage
1571 * \param format the MESA_FORMAT_x for the tex image
1572 * \param width as passed to glTexImage
1573 * \param height as passed to glTexImage
1574 * \param depth as passed to glTexImage
1575 * \param border as passed to glTexImage
1576 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1579 _mesa_test_proxy_teximage(struct gl_context
*ctx
, GLenum target
, GLint level
,
1581 GLint width
, GLint height
, GLint depth
, GLint border
)
1583 /* We just check if the image size is less than MaxTextureMbytes.
1584 * Some drivers may do more specific checks.
1586 uint64_t bytes
= _mesa_format_image_size64(format
, width
, height
, depth
);
1587 uint64_t mbytes
= bytes
/ (1024 * 1024); /* convert to MB */
1588 mbytes
*= _mesa_num_tex_faces(target
);
1589 return mbytes
<= (uint64_t) ctx
->Const
.MaxTextureMbytes
;
1594 * Return true if the format is only valid for glCompressedTexImage.
1597 compressedteximage_only_format(const struct gl_context
*ctx
, GLenum format
)
1600 case GL_ETC1_RGB8_OES
:
1601 case GL_PALETTE4_RGB8_OES
:
1602 case GL_PALETTE4_RGBA8_OES
:
1603 case GL_PALETTE4_R5_G6_B5_OES
:
1604 case GL_PALETTE4_RGBA4_OES
:
1605 case GL_PALETTE4_RGB5_A1_OES
:
1606 case GL_PALETTE8_RGB8_OES
:
1607 case GL_PALETTE8_RGBA8_OES
:
1608 case GL_PALETTE8_R5_G6_B5_OES
:
1609 case GL_PALETTE8_RGBA4_OES
:
1610 case GL_PALETTE8_RGB5_A1_OES
:
1619 * Helper function to determine whether a target and specific compression
1620 * format are supported.
1623 target_can_be_compressed(const struct gl_context
*ctx
, GLenum target
,
1626 (void) intFormat
; /* not used yet */
1630 case GL_PROXY_TEXTURE_2D
:
1631 return GL_TRUE
; /* true for any compressed format so far */
1632 case GL_PROXY_TEXTURE_CUBE_MAP
:
1633 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1634 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1635 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1636 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1637 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1638 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1639 return ctx
->Extensions
.ARB_texture_cube_map
;
1640 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1641 case GL_TEXTURE_2D_ARRAY_EXT
:
1642 return (ctx
->Extensions
.MESA_texture_array
||
1643 ctx
->Extensions
.EXT_texture_array
);
1644 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1645 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1646 return ctx
->Extensions
.ARB_texture_cube_map_array
;
1654 * Check if the given texture target value is legal for a
1655 * glTexImage1/2/3D call.
1658 legal_teximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1664 case GL_PROXY_TEXTURE_1D
:
1665 return _mesa_is_desktop_gl(ctx
);
1673 case GL_PROXY_TEXTURE_2D
:
1674 return _mesa_is_desktop_gl(ctx
);
1675 case GL_PROXY_TEXTURE_CUBE_MAP
:
1676 return _mesa_is_desktop_gl(ctx
)
1677 && ctx
->Extensions
.ARB_texture_cube_map
;
1678 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1679 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1680 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1681 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1682 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1683 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1684 return ctx
->Extensions
.ARB_texture_cube_map
;
1685 case GL_TEXTURE_RECTANGLE_NV
:
1686 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1687 return _mesa_is_desktop_gl(ctx
)
1688 && ctx
->Extensions
.NV_texture_rectangle
;
1689 case GL_TEXTURE_1D_ARRAY_EXT
:
1690 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1691 return _mesa_is_desktop_gl(ctx
)
1692 && (ctx
->Extensions
.MESA_texture_array
||
1693 ctx
->Extensions
.EXT_texture_array
);
1701 case GL_PROXY_TEXTURE_3D
:
1702 return _mesa_is_desktop_gl(ctx
);
1703 case GL_TEXTURE_2D_ARRAY_EXT
:
1704 return (_mesa_is_desktop_gl(ctx
)
1705 && (ctx
->Extensions
.MESA_texture_array
||
1706 ctx
->Extensions
.EXT_texture_array
))
1707 || _mesa_is_gles3(ctx
);
1708 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1709 return _mesa_is_desktop_gl(ctx
)
1710 && (ctx
->Extensions
.MESA_texture_array
||
1711 ctx
->Extensions
.EXT_texture_array
);
1712 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1713 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1714 return ctx
->Extensions
.ARB_texture_cube_map_array
;
1719 _mesa_problem(ctx
, "invalid dims=%u in legal_teximage_target()", dims
);
1726 * Check if the given texture target value is legal for a
1727 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1728 * The difference compared to legal_teximage_target() above is that
1729 * proxy targets are not supported.
1732 legal_texsubimage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1736 return _mesa_is_desktop_gl(ctx
) && target
== GL_TEXTURE_1D
;
1741 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1742 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1743 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1744 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1745 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1746 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1747 return ctx
->Extensions
.ARB_texture_cube_map
;
1748 case GL_TEXTURE_RECTANGLE_NV
:
1749 return _mesa_is_desktop_gl(ctx
)
1750 && ctx
->Extensions
.NV_texture_rectangle
;
1751 case GL_TEXTURE_1D_ARRAY_EXT
:
1752 return _mesa_is_desktop_gl(ctx
)
1753 && (ctx
->Extensions
.MESA_texture_array
||
1754 ctx
->Extensions
.EXT_texture_array
);
1762 case GL_TEXTURE_2D_ARRAY_EXT
:
1763 return (_mesa_is_desktop_gl(ctx
)
1764 && (ctx
->Extensions
.MESA_texture_array
||
1765 ctx
->Extensions
.EXT_texture_array
))
1766 || _mesa_is_gles3(ctx
);
1767 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1768 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1769 return ctx
->Extensions
.ARB_texture_cube_map_array
;
1774 _mesa_problem(ctx
, "invalid dims=%u in legal_texsubimage_target()",
1782 * Helper function to determine if a texture object is mutable (in terms
1783 * of GL_ARB_texture_storage).
1786 mutable_tex_object(struct gl_context
*ctx
, GLenum target
)
1788 if (ctx
->Extensions
.ARB_texture_storage
) {
1789 struct gl_texture_object
*texObj
=
1790 _mesa_get_current_tex_object(ctx
, target
);
1791 return !texObj
->Immutable
;
1798 * Return expected size of a compressed texture.
1801 compressed_tex_size(GLsizei width
, GLsizei height
, GLsizei depth
,
1804 gl_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
1805 return _mesa_format_image_size(mesaFormat
, width
, height
, depth
);
1810 * Test the glTexImage[123]D() parameters for errors.
1812 * \param ctx GL context.
1813 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1814 * \param target texture target given by the user (already validated).
1815 * \param level image level given by the user.
1816 * \param internalFormat internal format given by the user.
1817 * \param format pixel data format given by the user.
1818 * \param type pixel data type given by the user.
1819 * \param width image width given by the user.
1820 * \param height image height given by the user.
1821 * \param depth image depth given by the user.
1822 * \param border image border given by the user.
1824 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1826 * Verifies each of the parameters against the constants specified in
1827 * __struct gl_contextRec::Const and the supported extensions, and according
1828 * to the OpenGL specification.
1829 * Note that we don't fully error-check the width, height, depth values
1830 * here. That's done in _mesa_legal_texture_dimensions() which is used
1831 * by several other GL entrypoints. Plus, texture dims have a special
1832 * interaction with proxy textures.
1835 texture_error_check( struct gl_context
*ctx
,
1836 GLuint dimensions
, GLenum target
,
1837 GLint level
, GLint internalFormat
,
1838 GLenum format
, GLenum type
,
1839 GLint width
, GLint height
,
1840 GLint depth
, GLint border
)
1842 GLboolean colorFormat
;
1845 /* Even though there are no color-index textures, we still have to support
1846 * uploading color-index data and remapping it to RGB via the
1847 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1849 const GLboolean indexFormat
= (format
== GL_COLOR_INDEX
);
1851 /* Note: for proxy textures, some error conditions immediately generate
1852 * a GL error in the usual way. But others do not generate a GL error.
1853 * Instead, they cause the width, height, depth, format fields of the
1854 * texture image to be zeroed-out. The GL spec seems to indicate that the
1855 * zero-out behaviour is only used in cases related to memory allocation.
1859 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
1860 _mesa_error(ctx
, GL_INVALID_VALUE
,
1861 "glTexImage%dD(level=%d)", dimensions
, level
);
1866 if (border
< 0 || border
> 1 ||
1867 ((ctx
->API
!= API_OPENGL_COMPAT
||
1868 target
== GL_TEXTURE_RECTANGLE_NV
||
1869 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1870 _mesa_error(ctx
, GL_INVALID_VALUE
,
1871 "glTexImage%dD(border=%d)", dimensions
, border
);
1875 if (width
< 0 || height
< 0 || depth
< 0) {
1876 _mesa_error(ctx
, GL_INVALID_VALUE
,
1877 "glTexImage%dD(width, height or depth < 0)", dimensions
);
1881 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1882 * combinations of format, internalFormat, and type that can be used.
1883 * Formats and types that require additional extensions (e.g., GL_FLOAT
1884 * requires GL_OES_texture_float) are filtered elsewhere.
1887 if (_mesa_is_gles(ctx
)) {
1888 if (_mesa_is_gles3(ctx
)) {
1889 err
= _mesa_es3_error_check_format_and_type(format
, type
,
1892 if (format
!= internalFormat
) {
1893 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1894 "glTexImage%dD(format = %s, internalFormat = %s)",
1896 _mesa_lookup_enum_by_nr(format
),
1897 _mesa_lookup_enum_by_nr(internalFormat
));
1901 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
1903 if (err
!= GL_NO_ERROR
) {
1904 _mesa_error(ctx
, err
,
1905 "glTexImage%dD(format = %s, type = %s, internalFormat = %s)",
1907 _mesa_lookup_enum_by_nr(format
),
1908 _mesa_lookup_enum_by_nr(type
),
1909 _mesa_lookup_enum_by_nr(internalFormat
));
1914 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
1915 _mesa_is_cube_face(target
)) && width
!= height
) {
1916 _mesa_error(ctx
, GL_INVALID_VALUE
,
1917 "glTexImage2D(cube width != height)");
1921 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
||
1922 target
== GL_TEXTURE_CUBE_MAP_ARRAY
) && width
!= height
) {
1923 _mesa_error(ctx
, GL_INVALID_VALUE
,
1924 "glTexImage3D(cube array width != height)");
1928 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
||
1929 target
== GL_TEXTURE_CUBE_MAP_ARRAY
) && (depth
% 6)) {
1930 _mesa_error(ctx
, GL_INVALID_VALUE
,
1931 "glTexImage3D(cube array depth not multiple of 6)");
1935 /* Check internalFormat */
1936 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1937 _mesa_error(ctx
, GL_INVALID_VALUE
,
1938 "glTexImage%dD(internalFormat=%s)",
1939 dimensions
, _mesa_lookup_enum_by_nr(internalFormat
));
1943 /* Check incoming image format and type */
1944 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
1945 if (err
!= GL_NO_ERROR
) {
1946 _mesa_error(ctx
, err
,
1947 "glTexImage%dD(incompatible format = %s, type = %s)",
1948 dimensions
, _mesa_lookup_enum_by_nr(format
),
1949 _mesa_lookup_enum_by_nr(type
));
1953 /* make sure internal format and format basically agree */
1954 colorFormat
= _mesa_is_color_format(format
);
1955 if ((_mesa_is_color_format(internalFormat
) && !colorFormat
&& !indexFormat
) ||
1956 (_mesa_is_depth_format(internalFormat
) != _mesa_is_depth_format(format
)) ||
1957 (_mesa_is_ycbcr_format(internalFormat
) != _mesa_is_ycbcr_format(format
)) ||
1958 (_mesa_is_depthstencil_format(internalFormat
) != _mesa_is_depthstencil_format(format
)) ||
1959 (_mesa_is_dudv_format(internalFormat
) != _mesa_is_dudv_format(format
))) {
1960 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1961 "glTexImage%dD(incompatible internalFormat = %s, format = %s)",
1962 dimensions
, _mesa_lookup_enum_by_nr(internalFormat
),
1963 _mesa_lookup_enum_by_nr(format
));
1967 /* additional checks for ycbcr textures */
1968 if (internalFormat
== GL_YCBCR_MESA
) {
1969 ASSERT(ctx
->Extensions
.MESA_ycbcr_texture
);
1970 if (type
!= GL_UNSIGNED_SHORT_8_8_MESA
&&
1971 type
!= GL_UNSIGNED_SHORT_8_8_REV_MESA
) {
1973 _mesa_snprintf(message
, sizeof(message
),
1974 "glTexImage%dD(format/type YCBCR mismatch)",
1976 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", message
);
1977 return GL_TRUE
; /* error */
1979 if (target
!= GL_TEXTURE_2D
&&
1980 target
!= GL_PROXY_TEXTURE_2D
&&
1981 target
!= GL_TEXTURE_RECTANGLE_NV
&&
1982 target
!= GL_PROXY_TEXTURE_RECTANGLE_NV
) {
1983 _mesa_error(ctx
, GL_INVALID_ENUM
,
1984 "glTexImage%dD(bad target for YCbCr texture)",
1990 _mesa_snprintf(message
, sizeof(message
),
1991 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1992 dimensions
, border
);
1993 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", message
);
1998 /* additional checks for depth textures */
1999 if (_mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_COMPONENT
2000 || _mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_STENCIL
) {
2001 /* Only 1D, 2D, rect, array and cube textures supported, not 3D
2002 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */
2003 if (target
!= GL_TEXTURE_1D
&&
2004 target
!= GL_PROXY_TEXTURE_1D
&&
2005 target
!= GL_TEXTURE_2D
&&
2006 target
!= GL_PROXY_TEXTURE_2D
&&
2007 target
!= GL_TEXTURE_1D_ARRAY
&&
2008 target
!= GL_PROXY_TEXTURE_1D_ARRAY
&&
2009 target
!= GL_TEXTURE_2D_ARRAY
&&
2010 target
!= GL_PROXY_TEXTURE_2D_ARRAY
&&
2011 target
!= GL_TEXTURE_RECTANGLE_ARB
&&
2012 target
!= GL_PROXY_TEXTURE_RECTANGLE_ARB
&&
2013 !((_mesa_is_cube_face(target
) || target
== GL_PROXY_TEXTURE_CUBE_MAP
) &&
2014 (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_gpu_shader4
2015 || (ctx
->API
== API_OPENGLES2
&& ctx
->Extensions
.OES_depth_texture_cube_map
))) &&
2016 !((target
== GL_TEXTURE_CUBE_MAP_ARRAY
||
2017 target
== GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
) &&
2018 ctx
->Extensions
.ARB_texture_cube_map_array
)) {
2019 _mesa_error(ctx
, GL_INVALID_ENUM
,
2020 "glTexImage%dD(bad target for depth texture)",
2026 /* additional checks for compressed textures */
2027 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
2028 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2029 _mesa_error(ctx
, GL_INVALID_ENUM
,
2030 "glTexImage%dD(target can't be compressed)", dimensions
);
2033 if (compressedteximage_only_format(ctx
, internalFormat
)) {
2034 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2035 "glTexImage%dD(no compression for format)", dimensions
);
2039 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2040 "glTexImage%dD(border!=0)", dimensions
);
2045 /* additional checks for integer textures */
2046 if ((ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) &&
2047 (_mesa_is_enum_format_integer(format
) !=
2048 _mesa_is_enum_format_integer(internalFormat
))) {
2049 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2050 "glTexImage%dD(integer/non-integer format mismatch)",
2055 if (!mutable_tex_object(ctx
, target
)) {
2056 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2057 "glTexImage%dD(immutable texture)", dimensions
);
2061 /* if we get here, the parameters are OK */
2067 * Error checking for glCompressedTexImage[123]D().
2068 * Note that the width, height and depth values are not fully error checked
2070 * \return GL_TRUE if a error is found, GL_FALSE otherwise
2073 compressed_texture_error_check(struct gl_context
*ctx
, GLint dimensions
,
2074 GLenum target
, GLint level
,
2075 GLenum internalFormat
, GLsizei width
,
2076 GLsizei height
, GLsizei depth
, GLint border
,
2079 const GLint maxLevels
= _mesa_max_texture_levels(ctx
, target
);
2081 GLenum error
= GL_NO_ERROR
;
2082 char *reason
= ""; /* no error */
2084 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2086 error
= GL_INVALID_ENUM
;
2090 /* This will detect any invalid internalFormat value */
2091 if (!_mesa_is_compressed_format(ctx
, internalFormat
)) {
2092 reason
= "internalFormat";
2093 error
= GL_INVALID_ENUM
;
2097 switch (internalFormat
) {
2098 case GL_PALETTE4_RGB8_OES
:
2099 case GL_PALETTE4_RGBA8_OES
:
2100 case GL_PALETTE4_R5_G6_B5_OES
:
2101 case GL_PALETTE4_RGBA4_OES
:
2102 case GL_PALETTE4_RGB5_A1_OES
:
2103 case GL_PALETTE8_RGB8_OES
:
2104 case GL_PALETTE8_RGBA8_OES
:
2105 case GL_PALETTE8_R5_G6_B5_OES
:
2106 case GL_PALETTE8_RGBA4_OES
:
2107 case GL_PALETTE8_RGB5_A1_OES
:
2108 /* check level (note that level should be zero or less!) */
2109 if (level
> 0 || level
< -maxLevels
) {
2111 error
= GL_INVALID_VALUE
;
2115 if (dimensions
!= 2) {
2116 reason
= "compressed paletted textures must be 2D";
2117 error
= GL_INVALID_OPERATION
;
2121 /* Figure out the expected texture size (in bytes). This will be
2122 * checked against the actual size later.
2124 expectedSize
= _mesa_cpal_compressed_size(level
, internalFormat
,
2127 /* This is for the benefit of the TestProxyTexImage below. It expects
2128 * level to be non-negative. OES_compressed_paletted_texture uses a
2129 * weird mechanism where the level specified to glCompressedTexImage2D
2130 * is -(n-1) number of levels in the texture, and the data specifies the
2131 * complete mipmap stack. This is done to ensure the palette is the
2132 * same for all levels.
2139 if (level
< 0 || level
>= maxLevels
) {
2141 error
= GL_INVALID_VALUE
;
2145 /* Figure out the expected texture size (in bytes). This will be
2146 * checked against the actual size later.
2148 expectedSize
= compressed_tex_size(width
, height
, depth
, internalFormat
);
2152 /* This should really never fail */
2153 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
2154 reason
= "internalFormat";
2155 error
= GL_INVALID_ENUM
;
2159 /* No compressed formats support borders at this time */
2161 reason
= "border != 0";
2162 error
= GL_INVALID_VALUE
;
2166 /* For cube map, width must equal height */
2167 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
2168 _mesa_is_cube_face(target
)) && width
!= height
) {
2169 reason
= "width != height";
2170 error
= GL_INVALID_VALUE
;
2174 /* check image size in bytes */
2175 if (expectedSize
!= imageSize
) {
2176 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
2177 * if <imageSize> is not consistent with the format, dimensions, and
2178 * contents of the specified image.
2180 reason
= "imageSize inconsistant with width/height/format";
2181 error
= GL_INVALID_VALUE
;
2185 if (!mutable_tex_object(ctx
, target
)) {
2186 reason
= "immutable texture";
2187 error
= GL_INVALID_OPERATION
;
2194 _mesa_error(ctx
, error
, "glCompressedTexImage%dD(%s)", dimensions
, reason
);
2201 * Test glTexSubImage[123]D() parameters for errors.
2203 * \param ctx GL context.
2204 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2205 * \param target texture target given by the user (already validated)
2206 * \param level image level given by the user.
2207 * \param xoffset sub-image x offset given by the user.
2208 * \param yoffset sub-image y offset given by the user.
2209 * \param zoffset sub-image z offset given by the user.
2210 * \param format pixel data format given by the user.
2211 * \param type pixel data type given by the user.
2212 * \param width image width given by the user.
2213 * \param height image height given by the user.
2214 * \param depth image depth given by the user.
2216 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2218 * Verifies each of the parameters against the constants specified in
2219 * __struct gl_contextRec::Const and the supported extensions, and according
2220 * to the OpenGL specification.
2223 texsubimage_error_check(struct gl_context
*ctx
, GLuint dimensions
,
2224 GLenum target
, GLint level
,
2225 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2226 GLint width
, GLint height
, GLint depth
,
2227 GLenum format
, GLenum type
)
2229 struct gl_texture_object
*texObj
;
2230 struct gl_texture_image
*texImage
;
2233 /* check target (proxies not allowed) */
2234 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2235 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
2236 dimensions
, _mesa_lookup_enum_by_nr(target
));
2241 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2242 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(level=%d)",
2247 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2248 * combinations of format and type that can be used. Formats and types
2249 * that require additional extensions (e.g., GL_FLOAT requires
2250 * GL_OES_texture_float) are filtered elsewhere.
2252 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2253 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
2254 if (err
!= GL_NO_ERROR
) {
2255 _mesa_error(ctx
, err
,
2256 "glTexSubImage%dD(format = %s, type = %s)",
2258 _mesa_lookup_enum_by_nr(format
),
2259 _mesa_lookup_enum_by_nr(type
));
2264 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
2265 if (err
!= GL_NO_ERROR
) {
2266 _mesa_error(ctx
, err
,
2267 "glTexSubImage%dD(incompatible format = %s, type = %s)",
2268 dimensions
, _mesa_lookup_enum_by_nr(format
),
2269 _mesa_lookup_enum_by_nr(type
));
2273 /* Get dest texture object / image pointers */
2274 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2276 /* must be out of memory */
2277 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage%dD()", dimensions
);
2281 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2283 /* non-existant texture level */
2284 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2285 "glTexSubImage%dD(invalid texture image)", dimensions
);
2289 if (error_check_subtexture_dimensions(ctx
, "glTexSubImage", dimensions
,
2290 texImage
, xoffset
, yoffset
, 0,
2291 width
, height
, 1)) {
2295 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
2296 if (compressedteximage_only_format(ctx
, texImage
->InternalFormat
)) {
2297 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2298 "glTexSubImage%dD(no compression for format)", dimensions
);
2303 if (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) {
2304 /* both source and dest must be integer-valued, or neither */
2305 if (_mesa_is_format_integer_color(texImage
->TexFormat
) !=
2306 _mesa_is_enum_format_integer(format
)) {
2307 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2308 "glTexSubImage%dD(integer/non-integer format mismatch)",
2319 * Test glCopyTexImage[12]D() parameters for errors.
2321 * \param ctx GL context.
2322 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2323 * \param target texture target given by the user.
2324 * \param level image level given by the user.
2325 * \param internalFormat internal format given by the user.
2326 * \param width image width given by the user.
2327 * \param height image height given by the user.
2328 * \param border texture border.
2330 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2332 * Verifies each of the parameters against the constants specified in
2333 * __struct gl_contextRec::Const and the supported extensions, and according
2334 * to the OpenGL specification.
2337 copytexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
2338 GLenum target
, GLint level
, GLint internalFormat
,
2339 GLint width
, GLint height
, GLint border
)
2342 GLint rb_base_format
;
2343 struct gl_renderbuffer
*rb
;
2344 GLenum rb_internal_format
;
2347 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2348 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexImage%uD(target=%s)",
2349 dimensions
, _mesa_lookup_enum_by_nr(target
));
2354 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2355 _mesa_error(ctx
, GL_INVALID_VALUE
,
2356 "glCopyTexImage%dD(level=%d)", dimensions
, level
);
2360 /* Check that the source buffer is complete */
2361 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2362 if (ctx
->ReadBuffer
->_Status
== 0) {
2363 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2365 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2366 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2367 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2371 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2372 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2373 "glCopyTexImage%dD(multisample FBO)",
2380 if (border
< 0 || border
> 1 ||
2381 ((ctx
->API
!= API_OPENGL_COMPAT
||
2382 target
== GL_TEXTURE_RECTANGLE_NV
||
2383 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
2384 _mesa_error(ctx
, GL_INVALID_VALUE
,
2385 "glCopyTexImage%dD(border=%d)", dimensions
, border
);
2389 rb
= _mesa_get_read_renderbuffer_for_format(ctx
, internalFormat
);
2391 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2392 "glCopyTexImage%dD(read buffer)", dimensions
);
2396 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2399 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2400 switch (internalFormat
) {
2405 case GL_LUMINANCE_ALPHA
:
2408 _mesa_error(ctx
, GL_INVALID_VALUE
,
2409 "glCopyTexImage%dD(internalFormat)", dimensions
);
2414 baseFormat
= _mesa_base_tex_format(ctx
, internalFormat
);
2415 if (baseFormat
< 0) {
2416 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2417 "glCopyTexImage%dD(internalFormat)", dimensions
);
2421 rb_internal_format
= rb
->InternalFormat
;
2422 rb_base_format
= _mesa_base_tex_format(ctx
, rb
->InternalFormat
);
2423 if (_mesa_is_color_format(internalFormat
)) {
2424 if (rb_base_format
< 0) {
2425 _mesa_error(ctx
, GL_INVALID_VALUE
,
2426 "glCopyTexImage%dD(internalFormat)", dimensions
);
2431 if (_mesa_is_gles(ctx
)) {
2433 if (_mesa_base_format_component_count(baseFormat
) >
2434 _mesa_base_format_component_count(rb_base_format
)) {
2437 if (baseFormat
== GL_DEPTH_COMPONENT
||
2438 baseFormat
== GL_DEPTH_STENCIL
||
2439 rb_base_format
== GL_DEPTH_COMPONENT
||
2440 rb_base_format
== GL_DEPTH_STENCIL
||
2441 ((baseFormat
== GL_LUMINANCE_ALPHA
||
2442 baseFormat
== GL_ALPHA
) &&
2443 rb_base_format
!= GL_RGBA
) ||
2444 internalFormat
== GL_RGB9_E5
) {
2447 if (internalFormat
== GL_RGB9_E5
) {
2451 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2452 "glCopyTexImage%dD(internalFormat)", dimensions
);
2457 if ((_mesa_is_desktop_gl(ctx
) &&
2458 ctx
->Extensions
.ARB_framebuffer_object
) ||
2459 _mesa_is_gles3(ctx
)) {
2460 bool rb_is_srgb
= false;
2461 bool dst_is_srgb
= false;
2463 if (ctx
->Extensions
.EXT_framebuffer_sRGB
&&
2464 _mesa_get_format_color_encoding(rb
->Format
) == GL_SRGB
) {
2468 if (_mesa_get_linear_internalformat(internalFormat
) != internalFormat
) {
2472 if (rb_is_srgb
!= dst_is_srgb
) {
2473 /* Page 190 (page 211 of the PDF) in section 8.6 of the OpenGL 4.3
2474 * Core Profile spec says:
2476 * "An INVALID_OPERATION error is generated under any of the
2477 * following conditions:
2481 * - if the value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
2482 * for the framebuffer attachment corresponding to the read
2483 * buffer is LINEAR (see section 9.2.3) and internalformat
2484 * is one of the sRGB formats in table 8.23
2485 * - if the value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
2486 * for the framebuffer attachment corresponding to the read
2487 * buffer is SRGB and internalformat is not one of the sRGB
2488 * formats. in table 8.23."
2490 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2491 "glCopyTexImage%dD(srgb usage mismatch)", dimensions
);
2496 if (!_mesa_source_buffer_exists(ctx
, baseFormat
)) {
2497 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2498 "glCopyTexImage%dD(missing readbuffer)", dimensions
);
2502 /* From the EXT_texture_integer spec:
2504 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2505 * if the texture internalformat is an integer format and the read color
2506 * buffer is not an integer format, or if the internalformat is not an
2507 * integer format and the read color buffer is an integer format."
2509 if (_mesa_is_color_format(internalFormat
)) {
2510 bool is_int
= _mesa_is_enum_format_integer(internalFormat
);
2511 bool is_rbint
= _mesa_is_enum_format_integer(rb_internal_format
);
2512 if (is_int
|| is_rbint
) {
2513 if (is_int
!= is_rbint
) {
2514 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2515 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2517 } else if (_mesa_is_gles(ctx
) &&
2518 _mesa_is_enum_format_unsigned_int(internalFormat
) !=
2519 _mesa_is_enum_format_unsigned_int(rb_internal_format
)) {
2520 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2521 "glCopyTexImage%dD(signed vs unsigned integer)", dimensions
);
2527 if ((target
== GL_PROXY_TEXTURE_CUBE_MAP_ARB
||
2528 _mesa_is_cube_face(target
)) && width
!= height
) {
2529 _mesa_error(ctx
, GL_INVALID_VALUE
,
2530 "glTexImage2D(cube width != height)");
2534 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
2535 if (!target_can_be_compressed(ctx
, target
, internalFormat
)) {
2536 _mesa_error(ctx
, GL_INVALID_ENUM
,
2537 "glCopyTexImage%dD(target)", dimensions
);
2540 if (compressedteximage_only_format(ctx
, internalFormat
)) {
2541 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2542 "glCopyTexImage%dD(no compression for format)", dimensions
);
2546 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2547 "glCopyTexImage%dD(border!=0)", dimensions
);
2552 if (!mutable_tex_object(ctx
, target
)) {
2553 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2554 "glCopyTexImage%dD(immutable texture)", dimensions
);
2558 /* if we get here, the parameters are OK */
2564 * Test glCopyTexSubImage[12]D() parameters for errors.
2565 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2568 copytexsubimage_error_check(struct gl_context
*ctx
, GLuint dimensions
,
2569 GLenum target
, GLint level
,
2570 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2571 GLint width
, GLint height
)
2573 struct gl_texture_object
*texObj
;
2574 struct gl_texture_image
*texImage
;
2576 /* Check that the source buffer is complete */
2577 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2578 if (ctx
->ReadBuffer
->_Status
== 0) {
2579 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2581 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2582 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2583 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2587 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2588 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2589 "glCopyTexSubImage%dD(multisample FBO)",
2595 /* check target (proxies not allowed) */
2596 if (!legal_texsubimage_target(ctx
, dimensions
, target
)) {
2597 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexSubImage%uD(target=%s)",
2598 dimensions
, _mesa_lookup_enum_by_nr(target
));
2603 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2604 _mesa_error(ctx
, GL_INVALID_VALUE
,
2605 "glCopyTexSubImage%dD(level=%d)", dimensions
, level
);
2609 /* Get dest texture object / image pointers */
2610 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2612 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexSubImage%dD()", dimensions
);
2616 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
2618 /* destination image does not exist */
2619 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2620 "glCopyTexSubImage%dD(invalid texture image)", dimensions
);
2624 if (error_check_subtexture_dimensions(ctx
, "glCopyTexSubImage",
2625 dimensions
, texImage
,
2626 xoffset
, yoffset
, zoffset
,
2627 width
, height
, 1)) {
2631 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
2632 if (compressedteximage_only_format(ctx
, texImage
->InternalFormat
)) {
2633 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2634 "glCopyTexSubImage%dD(no compression for format)", dimensions
);
2639 if (texImage
->InternalFormat
== GL_YCBCR_MESA
) {
2640 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glCopyTexSubImage2D");
2644 if (!_mesa_source_buffer_exists(ctx
, texImage
->_BaseFormat
)) {
2645 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2646 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2647 dimensions
, texImage
->_BaseFormat
);
2651 /* From the EXT_texture_integer spec:
2653 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2654 * if the texture internalformat is an integer format and the read color
2655 * buffer is not an integer format, or if the internalformat is not an
2656 * integer format and the read color buffer is an integer format."
2658 if (_mesa_is_color_format(texImage
->InternalFormat
)) {
2659 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2661 if (_mesa_is_format_integer_color(rb
->Format
) !=
2662 _mesa_is_format_integer_color(texImage
->TexFormat
)) {
2663 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2664 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2669 /* if we get here, the parameters are OK */
2674 /** Callback info for walking over FBO hash table */
2677 struct gl_context
*ctx
;
2678 struct gl_texture_object
*texObj
;
2684 * Check render to texture callback. Called from _mesa_HashWalk().
2687 check_rtt_cb(GLuint key
, void *data
, void *userData
)
2689 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2690 const struct cb_info
*info
= (struct cb_info
*) userData
;
2691 struct gl_context
*ctx
= info
->ctx
;
2692 const struct gl_texture_object
*texObj
= info
->texObj
;
2693 const GLuint level
= info
->level
, face
= info
->face
;
2695 /* If this is a user-created FBO */
2696 if (_mesa_is_user_fbo(fb
)) {
2698 /* check if any of the FBO's attachments point to 'texObj' */
2699 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2700 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2701 if (att
->Type
== GL_TEXTURE
&&
2702 att
->Texture
== texObj
&&
2703 att
->TextureLevel
== level
&&
2704 att
->CubeMapFace
== face
) {
2705 ASSERT(_mesa_get_attachment_teximage(att
));
2706 /* Tell driver about the new renderbuffer texture */
2707 ctx
->Driver
.RenderTexture(ctx
, ctx
->DrawBuffer
, att
);
2708 /* Mark fb status as indeterminate to force re-validation */
2717 * When a texture image is specified we have to check if it's bound to
2718 * any framebuffer objects (render to texture) in order to detect changes
2719 * in size or format since that effects FBO completeness.
2720 * Any FBOs rendering into the texture must be re-validated.
2723 _mesa_update_fbo_texture(struct gl_context
*ctx
,
2724 struct gl_texture_object
*texObj
,
2725 GLuint face
, GLuint level
)
2727 /* Only check this texture if it's been marked as RenderToTexture */
2728 if (texObj
->_RenderToTexture
) {
2729 struct cb_info info
;
2731 info
.texObj
= texObj
;
2734 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, check_rtt_cb
, &info
);
2740 * If the texture object's GenerateMipmap flag is set and we've
2741 * changed the texture base level image, regenerate the rest of the
2742 * mipmap levels now.
2745 check_gen_mipmap(struct gl_context
*ctx
, GLenum target
,
2746 struct gl_texture_object
*texObj
, GLint level
)
2748 ASSERT(target
!= GL_TEXTURE_CUBE_MAP
);
2749 if (texObj
->GenerateMipmap
&&
2750 level
== texObj
->BaseLevel
&&
2751 level
< texObj
->MaxLevel
) {
2752 ASSERT(ctx
->Driver
.GenerateMipmap
);
2753 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2758 /** Debug helper: override the user-requested internal format */
2760 override_internal_format(GLenum internalFormat
, GLint width
, GLint height
)
2763 if (internalFormat
== GL_RGBA16F_ARB
||
2764 internalFormat
== GL_RGBA32F_ARB
) {
2765 printf("Convert rgba float tex to int %d x %d\n", width
, height
);
2768 else if (internalFormat
== GL_RGB16F_ARB
||
2769 internalFormat
== GL_RGB32F_ARB
) {
2770 printf("Convert rgb float tex to int %d x %d\n", width
, height
);
2773 else if (internalFormat
== GL_LUMINANCE_ALPHA16F_ARB
||
2774 internalFormat
== GL_LUMINANCE_ALPHA32F_ARB
) {
2775 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2776 return GL_LUMINANCE_ALPHA
;
2778 else if (internalFormat
== GL_LUMINANCE16F_ARB
||
2779 internalFormat
== GL_LUMINANCE32F_ARB
) {
2780 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2781 return GL_LUMINANCE
;
2783 else if (internalFormat
== GL_ALPHA16F_ARB
||
2784 internalFormat
== GL_ALPHA32F_ARB
) {
2785 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2789 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2790 internalFormat = GL_RGBA;
2794 return internalFormat
;
2797 return internalFormat
;
2803 * Choose the actual hardware format for a texture image.
2804 * Try to use the same format as the previous image level when possible.
2805 * Otherwise, ask the driver for the best format.
2806 * It's important to try to choose a consistant format for all levels
2807 * for efficient texture memory layout/allocation. In particular, this
2808 * comes up during automatic mipmap generation.
2811 _mesa_choose_texture_format(struct gl_context
*ctx
,
2812 struct gl_texture_object
*texObj
,
2813 GLenum target
, GLint level
,
2814 GLenum internalFormat
, GLenum format
, GLenum type
)
2818 /* see if we've already chosen a format for the previous level */
2820 struct gl_texture_image
*prevImage
=
2821 _mesa_select_tex_image(ctx
, texObj
, target
, level
- 1);
2822 /* See if the prev level is defined and has an internal format which
2823 * matches the new internal format.
2826 prevImage
->Width
> 0 &&
2827 prevImage
->InternalFormat
== internalFormat
) {
2828 /* use the same format */
2829 ASSERT(prevImage
->TexFormat
!= MESA_FORMAT_NONE
);
2830 return prevImage
->TexFormat
;
2834 /* If the application requested compression to an S3TC format but we don't
2835 * have the DTXn library, force a generic compressed format instead.
2837 if (internalFormat
!= format
&& format
!= GL_NONE
) {
2838 const GLenum before
= internalFormat
;
2840 switch (internalFormat
) {
2841 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
2842 if (!ctx
->Mesa_DXTn
)
2843 internalFormat
= GL_COMPRESSED_RGB
;
2845 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
2846 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
2847 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
2848 if (!ctx
->Mesa_DXTn
)
2849 internalFormat
= GL_COMPRESSED_RGBA
;
2855 if (before
!= internalFormat
) {
2857 "DXT compression requested (%s), "
2858 "but libtxc_dxtn library not installed. Using %s "
2860 _mesa_lookup_enum_by_nr(before
),
2861 _mesa_lookup_enum_by_nr(internalFormat
));
2865 /* choose format from scratch */
2866 f
= ctx
->Driver
.ChooseTextureFormat(ctx
, texObj
->Target
, internalFormat
,
2868 ASSERT(f
!= MESA_FORMAT_NONE
);
2873 * Adjust pixel unpack params and image dimensions to strip off the
2874 * one-pixel texture border.
2876 * Gallium and intel don't support texture borders. They've seldem been used
2877 * and seldom been implemented correctly anyway.
2879 * \param unpackNew returns the new pixel unpack parameters
2882 strip_texture_border(GLenum target
,
2883 GLint
*width
, GLint
*height
, GLint
*depth
,
2884 const struct gl_pixelstore_attrib
*unpack
,
2885 struct gl_pixelstore_attrib
*unpackNew
)
2891 *unpackNew
= *unpack
;
2893 if (unpackNew
->RowLength
== 0)
2894 unpackNew
->RowLength
= *width
;
2896 if (unpackNew
->ImageHeight
== 0)
2897 unpackNew
->ImageHeight
= *height
;
2899 assert(*width
>= 3);
2900 unpackNew
->SkipPixels
++; /* skip the border */
2901 *width
= *width
- 2; /* reduce the width by two border pixels */
2903 /* The min height of a texture with a border is 3 */
2904 if (*height
>= 3 && target
!= GL_TEXTURE_1D_ARRAY
) {
2905 unpackNew
->SkipRows
++; /* skip the border */
2906 *height
= *height
- 2; /* reduce the height by two border pixels */
2909 if (*depth
>= 3 && target
!= GL_TEXTURE_2D_ARRAY
&& target
!= GL_TEXTURE_CUBE_MAP_ARRAY
) {
2910 unpackNew
->SkipImages
++; /* skip the border */
2911 *depth
= *depth
- 2; /* reduce the depth by two border pixels */
2917 * Common code to implement all the glTexImage1D/2D/3D functions
2918 * as well as glCompressedTexImage1D/2D/3D.
2919 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls.
2920 * \param format the user's image format (only used if !compressed)
2921 * \param type the user's image type (only used if !compressed)
2922 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls.
2925 teximage(struct gl_context
*ctx
, GLboolean compressed
, GLuint dims
,
2926 GLenum target
, GLint level
, GLint internalFormat
,
2927 GLsizei width
, GLsizei height
, GLsizei depth
,
2928 GLint border
, GLenum format
, GLenum type
,
2929 GLsizei imageSize
, const GLvoid
*pixels
)
2931 const char *func
= compressed
? "glCompressedTexImage" : "glTexImage";
2932 struct gl_pixelstore_attrib unpack_no_border
;
2933 const struct gl_pixelstore_attrib
*unpack
= &ctx
->Unpack
;
2934 struct gl_texture_object
*texObj
;
2935 gl_format texFormat
;
2936 GLboolean dimensionsOK
, sizeOK
;
2938 FLUSH_VERTICES(ctx
, 0);
2940 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
)) {
2943 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n",
2945 _mesa_lookup_enum_by_nr(target
), level
,
2946 _mesa_lookup_enum_by_nr(internalFormat
),
2947 width
, height
, depth
, border
, pixels
);
2950 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2952 _mesa_lookup_enum_by_nr(target
), level
,
2953 _mesa_lookup_enum_by_nr(internalFormat
),
2954 width
, height
, depth
, border
,
2955 _mesa_lookup_enum_by_nr(format
),
2956 _mesa_lookup_enum_by_nr(type
), pixels
);
2959 internalFormat
= override_internal_format(internalFormat
, width
, height
);
2961 /* target error checking */
2962 if (!legal_teximage_target(ctx
, dims
, target
)) {
2963 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s%uD(target=%s)",
2964 func
, dims
, _mesa_lookup_enum_by_nr(target
));
2968 /* general error checking */
2970 if (compressed_texture_error_check(ctx
, dims
, target
, level
,
2972 width
, height
, depth
,
2977 if (texture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2978 format
, type
, width
, height
, depth
, border
))
2982 /* Here we convert a cpal compressed image into a regular glTexImage2D
2983 * call by decompressing the texture. If we really want to support cpal
2984 * textures in any driver this would have to be changed.
2986 if (ctx
->API
== API_OPENGLES
&& compressed
&& dims
== 2) {
2987 switch (internalFormat
) {
2988 case GL_PALETTE4_RGB8_OES
:
2989 case GL_PALETTE4_RGBA8_OES
:
2990 case GL_PALETTE4_R5_G6_B5_OES
:
2991 case GL_PALETTE4_RGBA4_OES
:
2992 case GL_PALETTE4_RGB5_A1_OES
:
2993 case GL_PALETTE8_RGB8_OES
:
2994 case GL_PALETTE8_RGBA8_OES
:
2995 case GL_PALETTE8_R5_G6_B5_OES
:
2996 case GL_PALETTE8_RGBA4_OES
:
2997 case GL_PALETTE8_RGB5_A1_OES
:
2998 _mesa_cpal_compressed_teximage2d(target
, level
, internalFormat
,
2999 width
, height
, imageSize
, pixels
);
3004 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3007 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3008 internalFormat
, format
, type
);
3009 assert(texFormat
!= MESA_FORMAT_NONE
);
3011 /* check that width, height, depth are legal for the mipmap level */
3012 dimensionsOK
= _mesa_legal_texture_dimensions(ctx
, target
, level
, width
,
3013 height
, depth
, border
);
3015 /* check that the texture won't take too much memory, etc */
3016 sizeOK
= ctx
->Driver
.TestProxyTexImage(ctx
, _mesa_get_proxy_target(target
),
3018 width
, height
, depth
, border
);
3020 if (_mesa_is_proxy_texture(target
)) {
3021 /* Proxy texture: just clear or set state depending on error checking */
3022 struct gl_texture_image
*texImage
=
3023 get_proxy_tex_image(ctx
, target
, level
);
3026 return; /* GL_OUT_OF_MEMORY already recorded */
3028 if (dimensionsOK
&& sizeOK
) {
3029 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, depth
,
3030 border
, internalFormat
, texFormat
);
3033 clear_teximage_fields(texImage
);
3037 /* non-proxy target */
3038 const GLuint face
= _mesa_tex_target_to_face(target
);
3039 struct gl_texture_image
*texImage
;
3041 if (!dimensionsOK
) {
3042 _mesa_error(ctx
, GL_INVALID_VALUE
,
3043 "glTexImage%uD(invalid width or height or depth)",
3049 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3050 "glTexImage%uD(image too large)", dims
);
3054 /* Allow a hardware driver to just strip out the border, to provide
3055 * reliable but slightly incorrect hardware rendering instead of
3056 * rarely-tested software fallback rendering.
3058 if (border
&& ctx
->Const
.StripTextureBorder
) {
3059 strip_texture_border(target
, &width
, &height
, &depth
, unpack
,
3062 unpack
= &unpack_no_border
;
3065 if (ctx
->NewState
& _NEW_PIXEL
)
3066 _mesa_update_state(ctx
);
3068 _mesa_lock_texture(ctx
, texObj
);
3070 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3073 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s%uD", func
, dims
);
3076 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3078 _mesa_init_teximage_fields(ctx
, texImage
,
3079 width
, height
, depth
,
3080 border
, internalFormat
, texFormat
);
3082 /* Give the texture to the driver. <pixels> may be null. */
3083 if (width
> 0 && height
> 0 && depth
> 0) {
3085 ctx
->Driver
.CompressedTexImage(ctx
, dims
, texImage
,
3089 ctx
->Driver
.TexImage(ctx
, dims
, texImage
, format
,
3090 type
, pixels
, unpack
);
3094 check_gen_mipmap(ctx
, target
, texObj
, level
);
3096 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3098 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3101 _mesa_unlock_texture(ctx
, texObj
);
3108 * Called from the API. Note that width includes the border.
3111 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalFormat
,
3112 GLsizei width
, GLint border
, GLenum format
,
3113 GLenum type
, const GLvoid
*pixels
)
3115 GET_CURRENT_CONTEXT(ctx
);
3116 teximage(ctx
, GL_FALSE
, 1, target
, level
, internalFormat
, width
, 1, 1,
3117 border
, format
, type
, 0, pixels
);
3122 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalFormat
,
3123 GLsizei width
, GLsizei height
, GLint border
,
3124 GLenum format
, GLenum type
,
3125 const GLvoid
*pixels
)
3127 GET_CURRENT_CONTEXT(ctx
);
3128 teximage(ctx
, GL_FALSE
, 2, target
, level
, internalFormat
, width
, height
, 1,
3129 border
, format
, type
, 0, pixels
);
3134 * Called by the API or display list executor.
3135 * Note that width and height include the border.
3138 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalFormat
,
3139 GLsizei width
, GLsizei height
, GLsizei depth
,
3140 GLint border
, GLenum format
, GLenum type
,
3141 const GLvoid
*pixels
)
3143 GET_CURRENT_CONTEXT(ctx
);
3144 teximage(ctx
, GL_FALSE
, 3, target
, level
, internalFormat
,
3145 width
, height
, depth
,
3146 border
, format
, type
, 0, pixels
);
3151 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalFormat
,
3152 GLsizei width
, GLsizei height
, GLsizei depth
,
3153 GLint border
, GLenum format
, GLenum type
,
3154 const GLvoid
*pixels
)
3156 _mesa_TexImage3D(target
, level
, (GLint
) internalFormat
, width
, height
,
3157 depth
, border
, format
, type
, pixels
);
3162 _mesa_EGLImageTargetTexture2DOES (GLenum target
, GLeglImageOES image
)
3164 struct gl_texture_object
*texObj
;
3165 struct gl_texture_image
*texImage
;
3167 GET_CURRENT_CONTEXT(ctx
);
3168 FLUSH_VERTICES(ctx
, 0);
3172 valid_target
= ctx
->Extensions
.OES_EGL_image
;
3174 case GL_TEXTURE_EXTERNAL_OES
:
3175 valid_target
= ctx
->Extensions
.OES_EGL_image_external
;
3178 valid_target
= false;
3182 if (!valid_target
) {
3183 _mesa_error(ctx
, GL_INVALID_ENUM
,
3184 "glEGLImageTargetTexture2D(target=%d)", target
);
3188 if (ctx
->NewState
& _NEW_PIXEL
)
3189 _mesa_update_state(ctx
);
3191 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3192 _mesa_lock_texture(ctx
, texObj
);
3194 if (texObj
->Immutable
) {
3195 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3196 "glEGLImageTargetTexture2D(texture is immutable)");
3197 _mesa_unlock_texture(ctx
, texObj
);
3201 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
3203 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glEGLImageTargetTexture2D");
3205 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3207 ctx
->Driver
.EGLImageTargetTexture2D(ctx
, target
,
3208 texObj
, texImage
, image
);
3210 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3212 _mesa_unlock_texture(ctx
, texObj
);
3219 * Implement all the glTexSubImage1/2/3D() functions.
3222 texsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3223 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3224 GLsizei width
, GLsizei height
, GLsizei depth
,
3225 GLenum format
, GLenum type
, const GLvoid
*pixels
)
3227 struct gl_texture_object
*texObj
;
3228 struct gl_texture_image
*texImage
;
3230 FLUSH_VERTICES(ctx
, 0);
3232 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3233 _mesa_debug(ctx
, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
3235 _mesa_lookup_enum_by_nr(target
), level
,
3236 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3237 _mesa_lookup_enum_by_nr(format
),
3238 _mesa_lookup_enum_by_nr(type
), pixels
);
3240 /* check target (proxies not allowed) */
3241 if (!legal_texsubimage_target(ctx
, dims
, target
)) {
3242 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
3243 dims
, _mesa_lookup_enum_by_nr(target
));
3247 if (ctx
->NewState
& _NEW_PIXEL
)
3248 _mesa_update_state(ctx
);
3250 if (texsubimage_error_check(ctx
, dims
, target
, level
,
3251 xoffset
, yoffset
, zoffset
,
3252 width
, height
, depth
, format
, type
)) {
3253 return; /* error was detected */
3256 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3258 _mesa_lock_texture(ctx
, texObj
);
3260 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3262 if (width
> 0 && height
> 0 && depth
> 0) {
3263 /* If we have a border, offset=-1 is legal. Bias by border width. */
3266 if (target
!= GL_TEXTURE_2D_ARRAY
)
3267 zoffset
+= texImage
->Border
;
3270 if (target
!= GL_TEXTURE_1D_ARRAY
)
3271 yoffset
+= texImage
->Border
;
3274 xoffset
+= texImage
->Border
;
3277 ctx
->Driver
.TexSubImage(ctx
, dims
, texImage
,
3278 xoffset
, yoffset
, zoffset
,
3279 width
, height
, depth
,
3280 format
, type
, pixels
, &ctx
->Unpack
);
3282 check_gen_mipmap(ctx
, target
, texObj
, level
);
3284 ctx
->NewState
|= _NEW_TEXTURE
;
3287 _mesa_unlock_texture(ctx
, texObj
);
3292 _mesa_TexSubImage1D( GLenum target
, GLint level
,
3293 GLint xoffset
, GLsizei width
,
3294 GLenum format
, GLenum type
,
3295 const GLvoid
*pixels
)
3297 GET_CURRENT_CONTEXT(ctx
);
3298 texsubimage(ctx
, 1, target
, level
,
3301 format
, type
, pixels
);
3306 _mesa_TexSubImage2D( GLenum target
, GLint level
,
3307 GLint xoffset
, GLint yoffset
,
3308 GLsizei width
, GLsizei height
,
3309 GLenum format
, GLenum type
,
3310 const GLvoid
*pixels
)
3312 GET_CURRENT_CONTEXT(ctx
);
3313 texsubimage(ctx
, 2, target
, level
,
3314 xoffset
, yoffset
, 0,
3316 format
, type
, pixels
);
3322 _mesa_TexSubImage3D( GLenum target
, GLint level
,
3323 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3324 GLsizei width
, GLsizei height
, GLsizei depth
,
3325 GLenum format
, GLenum type
,
3326 const GLvoid
*pixels
)
3328 GET_CURRENT_CONTEXT(ctx
);
3329 texsubimage(ctx
, 3, target
, level
,
3330 xoffset
, yoffset
, zoffset
,
3331 width
, height
, depth
,
3332 format
, type
, pixels
);
3338 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3339 * from. This depends on whether the texture contains color or depth values.
3341 static struct gl_renderbuffer
*
3342 get_copy_tex_image_source(struct gl_context
*ctx
, gl_format texFormat
)
3344 if (_mesa_get_format_bits(texFormat
, GL_DEPTH_BITS
) > 0) {
3345 /* reading from depth/stencil buffer */
3346 return ctx
->ReadBuffer
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
3349 /* copying from color buffer */
3350 return ctx
->ReadBuffer
->_ColorReadBuffer
;
3357 * Implement the glCopyTexImage1/2D() functions.
3360 copyteximage(struct gl_context
*ctx
, GLuint dims
,
3361 GLenum target
, GLint level
, GLenum internalFormat
,
3362 GLint x
, GLint y
, GLsizei width
, GLsizei height
, GLint border
)
3364 struct gl_texture_object
*texObj
;
3365 struct gl_texture_image
*texImage
;
3366 const GLuint face
= _mesa_tex_target_to_face(target
);
3367 gl_format texFormat
;
3369 FLUSH_VERTICES(ctx
, 0);
3371 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3372 _mesa_debug(ctx
, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3374 _mesa_lookup_enum_by_nr(target
), level
,
3375 _mesa_lookup_enum_by_nr(internalFormat
),
3376 x
, y
, width
, height
, border
);
3378 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3379 _mesa_update_state(ctx
);
3381 if (copytexture_error_check(ctx
, dims
, target
, level
, internalFormat
,
3382 width
, height
, border
))
3385 if (!_mesa_legal_texture_dimensions(ctx
, target
, level
, width
, height
,
3387 _mesa_error(ctx
, GL_INVALID_VALUE
,
3388 "glCopyTexImage%uD(invalid width or height)", dims
);
3392 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3395 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3396 internalFormat
, GL_NONE
, GL_NONE
);
3397 assert(texFormat
!= MESA_FORMAT_NONE
);
3399 if (!ctx
->Driver
.TestProxyTexImage(ctx
, _mesa_get_proxy_target(target
),
3401 width
, height
, 1, border
)) {
3402 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3403 "glCopyTexImage%uD(image too large)", dims
);
3407 if (border
&& ctx
->Const
.StripTextureBorder
) {
3409 width
-= border
* 2;
3412 height
-= border
* 2;
3417 _mesa_lock_texture(ctx
, texObj
);
3419 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3422 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
3425 GLint srcX
= x
, srcY
= y
, dstX
= 0, dstY
= 0, dstZ
= 0;
3427 /* Free old texture image */
3428 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3430 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, 1,
3431 border
, internalFormat
, texFormat
);
3433 /* Allocate texture memory (no pixel data yet) */
3434 ctx
->Driver
.AllocTextureImageBuffer(ctx
, texImage
);
3436 if (_mesa_clip_copytexsubimage(ctx
, &dstX
, &dstY
, &srcX
, &srcY
,
3438 struct gl_renderbuffer
*srcRb
=
3439 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3441 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
, dstX
, dstY
, dstZ
,
3442 srcRb
, srcX
, srcY
, width
, height
);
3445 check_gen_mipmap(ctx
, target
, texObj
, level
);
3447 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3449 _mesa_dirty_texobj(ctx
, texObj
, GL_TRUE
);
3452 _mesa_unlock_texture(ctx
, texObj
);
3458 _mesa_CopyTexImage1D( GLenum target
, GLint level
,
3459 GLenum internalFormat
,
3461 GLsizei width
, GLint border
)
3463 GET_CURRENT_CONTEXT(ctx
);
3464 copyteximage(ctx
, 1, target
, level
, internalFormat
, x
, y
, width
, 1, border
);
3470 _mesa_CopyTexImage2D( GLenum target
, GLint level
, GLenum internalFormat
,
3471 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
3474 GET_CURRENT_CONTEXT(ctx
);
3475 copyteximage(ctx
, 2, target
, level
, internalFormat
,
3476 x
, y
, width
, height
, border
);
3482 * Implementation for glCopyTexSubImage1/2/3D() functions.
3485 copytexsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3486 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3487 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3489 struct gl_texture_object
*texObj
;
3490 struct gl_texture_image
*texImage
;
3492 FLUSH_VERTICES(ctx
, 0);
3494 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3495 _mesa_debug(ctx
, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
3497 _mesa_lookup_enum_by_nr(target
),
3498 level
, xoffset
, yoffset
, zoffset
, x
, y
, width
, height
);
3500 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3501 _mesa_update_state(ctx
);
3503 if (copytexsubimage_error_check(ctx
, dims
, target
, level
,
3504 xoffset
, yoffset
, zoffset
, width
, height
)) {
3508 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3510 _mesa_lock_texture(ctx
, texObj
);
3512 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3514 /* If we have a border, offset=-1 is legal. Bias by border width. */
3517 if (target
!= GL_TEXTURE_2D_ARRAY
)
3518 zoffset
+= texImage
->Border
;
3521 if (target
!= GL_TEXTURE_1D_ARRAY
)
3522 yoffset
+= texImage
->Border
;
3525 xoffset
+= texImage
->Border
;
3528 if (_mesa_clip_copytexsubimage(ctx
, &xoffset
, &yoffset
, &x
, &y
,
3530 struct gl_renderbuffer
*srcRb
=
3531 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3533 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
,
3534 xoffset
, yoffset
, zoffset
,
3535 srcRb
, x
, y
, width
, height
);
3537 check_gen_mipmap(ctx
, target
, texObj
, level
);
3539 ctx
->NewState
|= _NEW_TEXTURE
;
3542 _mesa_unlock_texture(ctx
, texObj
);
3547 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
,
3548 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
3550 GET_CURRENT_CONTEXT(ctx
);
3551 copytexsubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, x
, y
, width
, 1);
3557 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
3558 GLint xoffset
, GLint yoffset
,
3559 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3561 GET_CURRENT_CONTEXT(ctx
);
3562 copytexsubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0, x
, y
,
3569 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
3570 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3571 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3573 GET_CURRENT_CONTEXT(ctx
);
3574 copytexsubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
3575 x
, y
, width
, height
);
3581 /**********************************************************************/
3582 /****** Compressed Textures ******/
3583 /**********************************************************************/
3587 * Error checking for glCompressedTexSubImage[123]D().
3588 * \return error code or GL_NO_ERROR.
3591 compressed_subtexture_error_check(struct gl_context
*ctx
, GLint dims
,
3592 GLenum target
, GLint level
,
3593 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3594 GLsizei width
, GLsizei height
, GLsizei depth
,
3595 GLenum format
, GLsizei imageSize
)
3597 struct gl_texture_object
*texObj
;
3598 struct gl_texture_image
*texImage
;
3606 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
3607 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
3608 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
3609 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
3610 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
3611 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
3615 targetOK
= GL_FALSE
;
3620 targetOK
= (target
== GL_TEXTURE_2D_ARRAY
);
3624 /* no 1D compressed textures at this time */
3625 targetOK
= GL_FALSE
;
3630 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCompressedTexImage%uD(target)",
3635 /* this will catch any invalid compressed format token */
3636 if (!_mesa_is_compressed_format(ctx
, format
)) {
3637 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCompressedTexImage%uD(format)",
3642 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
3643 _mesa_error(ctx
, GL_INVALID_VALUE
, "glCompressedTexImage%uD(level=%d)",
3648 expectedSize
= compressed_tex_size(width
, height
, depth
, format
);
3649 if (expectedSize
!= imageSize
) {
3650 _mesa_error(ctx
, GL_INVALID_VALUE
, "glCompressedTexImage%uD(size=%d)",
3655 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3657 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3658 "glCompressedTexSubImage%uD()", dims
);
3662 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3664 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3665 "glCompressedTexSubImage%uD(invalid texture image)", dims
);
3669 if ((GLint
) format
!= texImage
->InternalFormat
) {
3670 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3671 "glCompressedTexSubImage%uD(format=0x%x)", dims
, format
);
3675 if (compressedteximage_only_format(ctx
, format
)) {
3676 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3677 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)"
3682 if (error_check_subtexture_dimensions(ctx
, "glCompressedTexSubImage", dims
,
3683 texImage
, xoffset
, yoffset
, zoffset
,
3684 width
, height
, depth
)) {
3693 _mesa_CompressedTexImage1D(GLenum target
, GLint level
,
3694 GLenum internalFormat
, GLsizei width
,
3695 GLint border
, GLsizei imageSize
,
3698 GET_CURRENT_CONTEXT(ctx
);
3699 teximage(ctx
, GL_TRUE
, 1, target
, level
, internalFormat
,
3700 width
, 1, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3705 _mesa_CompressedTexImage2D(GLenum target
, GLint level
,
3706 GLenum internalFormat
, GLsizei width
,
3707 GLsizei height
, GLint border
, GLsizei imageSize
,
3710 GET_CURRENT_CONTEXT(ctx
);
3711 teximage(ctx
, GL_TRUE
, 2, target
, level
, internalFormat
,
3712 width
, height
, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3717 _mesa_CompressedTexImage3D(GLenum target
, GLint level
,
3718 GLenum internalFormat
, GLsizei width
,
3719 GLsizei height
, GLsizei depth
, GLint border
,
3720 GLsizei imageSize
, const GLvoid
*data
)
3722 GET_CURRENT_CONTEXT(ctx
);
3723 teximage(ctx
, GL_TRUE
, 3, target
, level
, internalFormat
,
3724 width
, height
, depth
, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
3729 * Common helper for glCompressedTexSubImage1/2/3D().
3732 compressed_tex_sub_image(GLuint dims
, GLenum target
, GLint level
,
3733 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3734 GLsizei width
, GLsizei height
, GLsizei depth
,
3735 GLenum format
, GLsizei imageSize
, const GLvoid
*data
)
3737 struct gl_texture_object
*texObj
;
3738 struct gl_texture_image
*texImage
;
3739 GET_CURRENT_CONTEXT(ctx
);
3740 FLUSH_VERTICES(ctx
, 0);
3742 if (compressed_subtexture_error_check(ctx
, dims
, target
, level
,
3743 xoffset
, yoffset
, zoffset
,
3744 width
, height
, depth
,
3745 format
, imageSize
)) {
3749 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3751 _mesa_lock_texture(ctx
, texObj
);
3753 texImage
= _mesa_select_tex_image(ctx
, texObj
, target
, level
);
3756 if (width
> 0 && height
> 0 && depth
> 0) {
3757 ctx
->Driver
.CompressedTexSubImage(ctx
, dims
, texImage
,
3758 xoffset
, yoffset
, zoffset
,
3759 width
, height
, depth
,
3760 format
, imageSize
, data
);
3762 check_gen_mipmap(ctx
, target
, texObj
, level
);
3764 ctx
->NewState
|= _NEW_TEXTURE
;
3767 _mesa_unlock_texture(ctx
, texObj
);
3772 _mesa_CompressedTexSubImage1D(GLenum target
, GLint level
, GLint xoffset
,
3773 GLsizei width
, GLenum format
,
3774 GLsizei imageSize
, const GLvoid
*data
)
3776 compressed_tex_sub_image(1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
3777 format
, imageSize
, data
);
3782 _mesa_CompressedTexSubImage2D(GLenum target
, GLint level
, GLint xoffset
,
3783 GLint yoffset
, GLsizei width
, GLsizei height
,
3784 GLenum format
, GLsizei imageSize
,
3787 compressed_tex_sub_image(2, target
, level
, xoffset
, yoffset
, 0,
3788 width
, height
, 1, format
, imageSize
, data
);
3793 _mesa_CompressedTexSubImage3D(GLenum target
, GLint level
, GLint xoffset
,
3794 GLint yoffset
, GLint zoffset
, GLsizei width
,
3795 GLsizei height
, GLsizei depth
, GLenum format
,
3796 GLsizei imageSize
, const GLvoid
*data
)
3798 compressed_tex_sub_image(3, target
, level
, xoffset
, yoffset
, zoffset
,
3799 width
, height
, depth
, format
, imageSize
, data
);
3803 get_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3805 switch (internalFormat
) {
3807 return MESA_FORMAT_A8
;
3809 return MESA_FORMAT_A16
;
3810 case GL_ALPHA16F_ARB
:
3811 return MESA_FORMAT_ALPHA_FLOAT16
;
3812 case GL_ALPHA32F_ARB
:
3813 return MESA_FORMAT_ALPHA_FLOAT32
;
3814 case GL_ALPHA8I_EXT
:
3815 return MESA_FORMAT_ALPHA_INT8
;
3816 case GL_ALPHA16I_EXT
:
3817 return MESA_FORMAT_ALPHA_INT16
;
3818 case GL_ALPHA32I_EXT
:
3819 return MESA_FORMAT_ALPHA_INT32
;
3820 case GL_ALPHA8UI_EXT
:
3821 return MESA_FORMAT_ALPHA_UINT8
;
3822 case GL_ALPHA16UI_EXT
:
3823 return MESA_FORMAT_ALPHA_UINT16
;
3824 case GL_ALPHA32UI_EXT
:
3825 return MESA_FORMAT_ALPHA_UINT32
;
3827 return MESA_FORMAT_L8
;
3828 case GL_LUMINANCE16
:
3829 return MESA_FORMAT_L16
;
3830 case GL_LUMINANCE16F_ARB
:
3831 return MESA_FORMAT_LUMINANCE_FLOAT16
;
3832 case GL_LUMINANCE32F_ARB
:
3833 return MESA_FORMAT_LUMINANCE_FLOAT32
;
3834 case GL_LUMINANCE8I_EXT
:
3835 return MESA_FORMAT_LUMINANCE_INT8
;
3836 case GL_LUMINANCE16I_EXT
:
3837 return MESA_FORMAT_LUMINANCE_INT16
;
3838 case GL_LUMINANCE32I_EXT
:
3839 return MESA_FORMAT_LUMINANCE_INT32
;
3840 case GL_LUMINANCE8UI_EXT
:
3841 return MESA_FORMAT_LUMINANCE_UINT8
;
3842 case GL_LUMINANCE16UI_EXT
:
3843 return MESA_FORMAT_LUMINANCE_UINT16
;
3844 case GL_LUMINANCE32UI_EXT
:
3845 return MESA_FORMAT_LUMINANCE_UINT32
;
3846 case GL_LUMINANCE8_ALPHA8
:
3847 return MESA_FORMAT_AL88
;
3848 case GL_LUMINANCE16_ALPHA16
:
3849 return MESA_FORMAT_AL1616
;
3850 case GL_LUMINANCE_ALPHA16F_ARB
:
3851 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
;
3852 case GL_LUMINANCE_ALPHA32F_ARB
:
3853 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
;
3854 case GL_LUMINANCE_ALPHA8I_EXT
:
3855 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3856 case GL_LUMINANCE_ALPHA16I_EXT
:
3857 return MESA_FORMAT_LUMINANCE_ALPHA_INT8
;
3858 case GL_LUMINANCE_ALPHA32I_EXT
:
3859 return MESA_FORMAT_LUMINANCE_ALPHA_INT16
;
3860 case GL_LUMINANCE_ALPHA8UI_EXT
:
3861 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8
;
3862 case GL_LUMINANCE_ALPHA16UI_EXT
:
3863 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16
;
3864 case GL_LUMINANCE_ALPHA32UI_EXT
:
3865 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32
;
3867 return MESA_FORMAT_I8
;
3868 case GL_INTENSITY16
:
3869 return MESA_FORMAT_I16
;
3870 case GL_INTENSITY16F_ARB
:
3871 return MESA_FORMAT_INTENSITY_FLOAT16
;
3872 case GL_INTENSITY32F_ARB
:
3873 return MESA_FORMAT_INTENSITY_FLOAT32
;
3874 case GL_INTENSITY8I_EXT
:
3875 return MESA_FORMAT_INTENSITY_INT8
;
3876 case GL_INTENSITY16I_EXT
:
3877 return MESA_FORMAT_INTENSITY_INT16
;
3878 case GL_INTENSITY32I_EXT
:
3879 return MESA_FORMAT_INTENSITY_INT32
;
3880 case GL_INTENSITY8UI_EXT
:
3881 return MESA_FORMAT_INTENSITY_UINT8
;
3882 case GL_INTENSITY16UI_EXT
:
3883 return MESA_FORMAT_INTENSITY_UINT16
;
3884 case GL_INTENSITY32UI_EXT
:
3885 return MESA_FORMAT_INTENSITY_UINT32
;
3887 return MESA_FORMAT_RGBA8888_REV
;
3889 return MESA_FORMAT_RGBA_16
;
3890 case GL_RGBA16F_ARB
:
3891 return MESA_FORMAT_RGBA_FLOAT16
;
3892 case GL_RGBA32F_ARB
:
3893 return MESA_FORMAT_RGBA_FLOAT32
;
3895 return MESA_FORMAT_RGBA_INT8
;
3896 case GL_RGBA16I_EXT
:
3897 return MESA_FORMAT_RGBA_INT16
;
3898 case GL_RGBA32I_EXT
:
3899 return MESA_FORMAT_RGBA_INT32
;
3900 case GL_RGBA8UI_EXT
:
3901 return MESA_FORMAT_RGBA_UINT8
;
3902 case GL_RGBA16UI_EXT
:
3903 return MESA_FORMAT_RGBA_UINT16
;
3904 case GL_RGBA32UI_EXT
:
3905 return MESA_FORMAT_RGBA_UINT32
;
3908 return MESA_FORMAT_GR88
;
3910 return MESA_FORMAT_RG1616
;
3912 return MESA_FORMAT_RG_FLOAT16
;
3914 return MESA_FORMAT_RG_FLOAT32
;
3916 return MESA_FORMAT_RG_INT8
;
3918 return MESA_FORMAT_RG_INT16
;
3920 return MESA_FORMAT_RG_INT32
;
3922 return MESA_FORMAT_RG_UINT8
;
3924 return MESA_FORMAT_RG_UINT16
;
3926 return MESA_FORMAT_RG_UINT32
;
3929 return MESA_FORMAT_R8
;
3931 return MESA_FORMAT_R16
;
3933 return MESA_FORMAT_R_FLOAT16
;
3935 return MESA_FORMAT_R_FLOAT32
;
3937 return MESA_FORMAT_R_INT8
;
3939 return MESA_FORMAT_R_INT16
;
3941 return MESA_FORMAT_R_INT32
;
3943 return MESA_FORMAT_R_UINT8
;
3945 return MESA_FORMAT_R_UINT16
;
3947 return MESA_FORMAT_R_UINT32
;
3950 return MESA_FORMAT_RGB_FLOAT32
;
3952 return MESA_FORMAT_RGB_UINT32
;
3954 return MESA_FORMAT_RGB_INT32
;
3957 return MESA_FORMAT_NONE
;
3962 validate_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
3964 gl_format format
= get_texbuffer_format(ctx
, internalFormat
);
3967 if (format
== MESA_FORMAT_NONE
)
3968 return MESA_FORMAT_NONE
;
3970 datatype
= _mesa_get_format_datatype(format
);
3971 if (datatype
== GL_FLOAT
&& !ctx
->Extensions
.ARB_texture_float
)
3972 return MESA_FORMAT_NONE
;
3974 if (datatype
== GL_HALF_FLOAT
&& !ctx
->Extensions
.ARB_half_float_pixel
)
3975 return MESA_FORMAT_NONE
;
3977 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make
3978 * any mention of R/RG formats, but they appear in the GL 3.1 core
3981 if (ctx
->Version
<= 30) {
3982 GLenum base_format
= _mesa_get_format_base_format(format
);
3984 if (base_format
== GL_R
|| base_format
== GL_RG
)
3985 return MESA_FORMAT_NONE
;
3988 if (!ctx
->Extensions
.ARB_texture_buffer_object_rgb32
) {
3989 GLenum base_format
= _mesa_get_format_base_format(format
);
3990 if (base_format
== GL_RGB
)
3991 return MESA_FORMAT_NONE
;
3998 texbufferrange(struct gl_context
*ctx
, GLenum target
, GLenum internalFormat
,
3999 struct gl_buffer_object
*bufObj
,
4000 GLintptr offset
, GLsizeiptr size
)
4002 struct gl_texture_object
*texObj
;
4005 FLUSH_VERTICES(ctx
, 0);
4007 if (target
!= GL_TEXTURE_BUFFER_ARB
) {
4008 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(target)");
4012 format
= validate_texbuffer_format(ctx
, internalFormat
);
4013 if (format
== MESA_FORMAT_NONE
) {
4014 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexBuffer(internalFormat 0x%x)",
4019 texObj
= _mesa_get_current_tex_object(ctx
, target
);
4021 _mesa_lock_texture(ctx
, texObj
);
4023 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, bufObj
);
4024 texObj
->BufferObjectFormat
= internalFormat
;
4025 texObj
->_BufferObjectFormat
= format
;
4026 texObj
->BufferOffset
= offset
;
4027 texObj
->BufferSize
= size
;
4029 _mesa_unlock_texture(ctx
, texObj
);
4032 /** GL_ARB_texture_buffer_object */
4034 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
)
4036 struct gl_buffer_object
*bufObj
;
4038 GET_CURRENT_CONTEXT(ctx
);
4040 /* NOTE: ARB_texture_buffer_object has interactions with
4041 * the compatibility profile that are not implemented.
4043 if (!(ctx
->API
== API_OPENGL_CORE
&&
4044 ctx
->Extensions
.ARB_texture_buffer_object
)) {
4045 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer");
4049 bufObj
= _mesa_lookup_bufferobj(ctx
, buffer
);
4050 if (!bufObj
&& buffer
) {
4051 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBuffer(buffer %u)", buffer
);
4055 texbufferrange(ctx
, target
, internalFormat
, bufObj
, 0, buffer
? -1 : 0);
4058 /** GL_ARB_texture_buffer_range */
4060 _mesa_TexBufferRange(GLenum target
, GLenum internalFormat
, GLuint buffer
,
4061 GLintptr offset
, GLsizeiptr size
)
4063 struct gl_buffer_object
*bufObj
;
4065 GET_CURRENT_CONTEXT(ctx
);
4067 if (!(ctx
->API
== API_OPENGL_CORE
&&
4068 ctx
->Extensions
.ARB_texture_buffer_range
)) {
4069 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBufferRange");
4073 bufObj
= _mesa_lookup_bufferobj(ctx
, buffer
);
4077 (offset
+ size
) > bufObj
->Size
) {
4078 _mesa_error(ctx
, GL_INVALID_VALUE
, "glTexBufferRange");
4081 if (offset
% ctx
->Const
.TextureBufferOffsetAlignment
) {
4082 _mesa_error(ctx
, GL_INVALID_VALUE
,
4083 "glTexBufferRange(invalid offset alignment)");
4086 } else if (buffer
) {
4087 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTexBufferRange(buffer %u)",
4095 texbufferrange(ctx
, target
, internalFormat
, bufObj
, offset
, size
);