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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
29 * Texture image-related functions.
34 #include "bufferobj.h"
38 #include "framebuffer.h"
43 #include "multisample.h"
44 #include "pixelstore.h"
46 #include "texcompress.h"
47 #include "texcompress_cpal.h"
51 #include "texstorage.h"
52 #include "textureview.h"
54 #include "glformats.h"
60 * State changes which we care about for glCopyTex[Sub]Image() calls.
61 * In particular, we care about pixel transfer state and buffer state
62 * (such as glReadBuffer to make sure we read from the right renderbuffer).
64 #define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
67 * Returns a corresponding internal floating point format for a given base
68 * format as specifed by OES_texture_float. In case of GL_FLOAT, the internal
69 * format needs to be a 32 bit component and in case of GL_HALF_FLOAT_OES it
70 * needs to be a 16 bit component.
72 * For example, given base format GL_RGBA, type GL_Float return GL_RGBA32F_ARB.
75 adjust_for_oes_float_texture(GLenum format
, GLenum type
)
85 return GL_ALPHA32F_ARB
;
87 return GL_LUMINANCE32F_ARB
;
88 case GL_LUMINANCE_ALPHA
:
89 return GL_LUMINANCE_ALPHA32F_ARB
;
95 case GL_HALF_FLOAT_OES
:
102 return GL_ALPHA16F_ARB
;
104 return GL_LUMINANCE16F_ARB
;
105 case GL_LUMINANCE_ALPHA
:
106 return GL_LUMINANCE_ALPHA16F_ARB
;
121 * Install gl_texture_image in a gl_texture_object according to the target
122 * and level parameters.
124 * \param tObj texture object.
125 * \param target texture target.
126 * \param level image level.
127 * \param texImage texture image.
130 set_tex_image(struct gl_texture_object
*tObj
,
131 GLenum target
, GLint level
,
132 struct gl_texture_image
*texImage
)
134 const GLuint face
= _mesa_tex_target_to_face(target
);
138 if (target
== GL_TEXTURE_RECTANGLE_NV
|| target
== GL_TEXTURE_EXTERNAL_OES
)
141 tObj
->Image
[face
][level
] = texImage
;
143 /* Set the 'back' pointer */
144 texImage
->TexObject
= tObj
;
145 texImage
->Level
= level
;
146 texImage
->Face
= face
;
151 * Allocate a texture image structure.
153 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
156 * \return a pointer to gl_texture_image struct with all fields initialized to
159 struct gl_texture_image
*
160 _mesa_new_texture_image( struct gl_context
*ctx
)
163 return CALLOC_STRUCT(gl_texture_image
);
168 * Free a gl_texture_image and associated data.
169 * This function is a fallback called via ctx->Driver.DeleteTextureImage().
171 * \param texImage texture image.
173 * Free the texture image structure and the associated image data.
176 _mesa_delete_texture_image(struct gl_context
*ctx
,
177 struct gl_texture_image
*texImage
)
179 /* Free texImage->Data and/or any other driver-specific texture
182 assert(ctx
->Driver
.FreeTextureImageBuffer
);
183 ctx
->Driver
.FreeTextureImageBuffer( ctx
, texImage
);
189 * Test if a target is a proxy target.
191 * \param target texture target.
193 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
196 _mesa_is_proxy_texture(GLenum target
)
199 static const GLenum targets
[] = {
203 GL_PROXY_TEXTURE_CUBE_MAP
,
204 GL_PROXY_TEXTURE_RECTANGLE
,
205 GL_PROXY_TEXTURE_1D_ARRAY
,
206 GL_PROXY_TEXTURE_2D_ARRAY
,
207 GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
,
208 GL_PROXY_TEXTURE_2D_MULTISAMPLE
,
209 GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
212 * NUM_TEXTURE_TARGETS should match number of terms above, except there's no
213 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
215 STATIC_ASSERT(NUM_TEXTURE_TARGETS
== ARRAY_SIZE(targets
) + 2);
217 for (i
= 0; i
< ARRAY_SIZE(targets
); ++i
)
218 if (target
== targets
[i
])
225 * Test if a target is an array target.
227 * \param target texture target.
229 * \return true if the target is an array target, false otherwise.
232 _mesa_is_array_texture(GLenum target
)
235 case GL_TEXTURE_1D_ARRAY
:
236 case GL_TEXTURE_2D_ARRAY
:
237 case GL_TEXTURE_CUBE_MAP_ARRAY
:
238 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
247 * Return the proxy target which corresponds to the given texture target
250 proxy_target(GLenum target
)
254 case GL_PROXY_TEXTURE_1D
:
255 return GL_PROXY_TEXTURE_1D
;
257 case GL_PROXY_TEXTURE_2D
:
258 return GL_PROXY_TEXTURE_2D
;
260 case GL_PROXY_TEXTURE_3D
:
261 return GL_PROXY_TEXTURE_3D
;
262 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
263 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
264 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
265 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
266 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
267 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
268 case GL_TEXTURE_CUBE_MAP
:
269 case GL_PROXY_TEXTURE_CUBE_MAP
:
270 return GL_PROXY_TEXTURE_CUBE_MAP
;
271 case GL_TEXTURE_RECTANGLE_NV
:
272 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
273 return GL_PROXY_TEXTURE_RECTANGLE_NV
;
274 case GL_TEXTURE_1D_ARRAY_EXT
:
275 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
276 return GL_PROXY_TEXTURE_1D_ARRAY_EXT
;
277 case GL_TEXTURE_2D_ARRAY_EXT
:
278 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
279 return GL_PROXY_TEXTURE_2D_ARRAY_EXT
;
280 case GL_TEXTURE_CUBE_MAP_ARRAY
:
281 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
282 return GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
;
283 case GL_TEXTURE_2D_MULTISAMPLE
:
284 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
285 return GL_PROXY_TEXTURE_2D_MULTISAMPLE
;
286 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
287 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
288 return GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
;
290 _mesa_problem(NULL
, "unexpected target in proxy_target()");
299 * Get a texture image pointer from a texture object, given a texture
300 * target and mipmap level. The target and level parameters should
301 * have already been error-checked.
303 * \param texObj texture unit.
304 * \param target texture target.
305 * \param level image level.
307 * \return pointer to the texture image structure, or NULL on failure.
309 struct gl_texture_image
*
310 _mesa_select_tex_image(const struct gl_texture_object
*texObj
,
311 GLenum target
, GLint level
)
313 const GLuint face
= _mesa_tex_target_to_face(target
);
317 assert(level
< MAX_TEXTURE_LEVELS
);
319 return texObj
->Image
[face
][level
];
324 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
325 * it and install it. Only return NULL if passed a bad parameter or run
328 struct gl_texture_image
*
329 _mesa_get_tex_image(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
330 GLenum target
, GLint level
)
332 struct gl_texture_image
*texImage
;
337 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
339 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
341 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "texture image allocation");
345 set_tex_image(texObj
, target
, level
, texImage
);
353 * Return pointer to the specified proxy texture image.
354 * Note that proxy textures are per-context, not per-texture unit.
355 * \return pointer to texture image or NULL if invalid target, invalid
356 * level, or out of memory.
358 static struct gl_texture_image
*
359 get_proxy_tex_image(struct gl_context
*ctx
, GLenum target
, GLint level
)
361 struct gl_texture_image
*texImage
;
368 case GL_PROXY_TEXTURE_1D
:
369 if (level
>= ctx
->Const
.MaxTextureLevels
)
371 texIndex
= TEXTURE_1D_INDEX
;
373 case GL_PROXY_TEXTURE_2D
:
374 if (level
>= ctx
->Const
.MaxTextureLevels
)
376 texIndex
= TEXTURE_2D_INDEX
;
378 case GL_PROXY_TEXTURE_3D
:
379 if (level
>= ctx
->Const
.Max3DTextureLevels
)
381 texIndex
= TEXTURE_3D_INDEX
;
383 case GL_PROXY_TEXTURE_CUBE_MAP
:
384 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
386 texIndex
= TEXTURE_CUBE_INDEX
;
388 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
391 texIndex
= TEXTURE_RECT_INDEX
;
393 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
394 if (level
>= ctx
->Const
.MaxTextureLevels
)
396 texIndex
= TEXTURE_1D_ARRAY_INDEX
;
398 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
399 if (level
>= ctx
->Const
.MaxTextureLevels
)
401 texIndex
= TEXTURE_2D_ARRAY_INDEX
;
403 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
404 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
406 texIndex
= TEXTURE_CUBE_ARRAY_INDEX
;
408 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
411 texIndex
= TEXTURE_2D_MULTISAMPLE_INDEX
;
413 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
416 texIndex
= TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
;
422 texImage
= ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
];
424 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
426 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "proxy texture allocation");
429 ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
] = texImage
;
430 /* Set the 'back' pointer */
431 texImage
->TexObject
= ctx
->Texture
.ProxyTex
[texIndex
];
438 * Get the maximum number of allowed mipmap levels.
440 * \param ctx GL context.
441 * \param target texture target.
443 * \return the maximum number of allowed mipmap levels for the given
444 * texture target, or zero if passed a bad target.
449 _mesa_max_texture_levels(struct gl_context
*ctx
, GLenum target
)
453 case GL_PROXY_TEXTURE_1D
:
455 case GL_PROXY_TEXTURE_2D
:
456 return ctx
->Const
.MaxTextureLevels
;
458 case GL_PROXY_TEXTURE_3D
:
459 return ctx
->Const
.Max3DTextureLevels
;
460 case GL_TEXTURE_CUBE_MAP
:
461 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
462 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
463 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
464 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
465 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
466 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
467 case GL_PROXY_TEXTURE_CUBE_MAP
:
468 return ctx
->Extensions
.ARB_texture_cube_map
469 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
470 case GL_TEXTURE_RECTANGLE_NV
:
471 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
472 return ctx
->Extensions
.NV_texture_rectangle
? 1 : 0;
473 case GL_TEXTURE_1D_ARRAY_EXT
:
474 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
475 case GL_TEXTURE_2D_ARRAY_EXT
:
476 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
477 return ctx
->Extensions
.EXT_texture_array
478 ? ctx
->Const
.MaxTextureLevels
: 0;
479 case GL_TEXTURE_CUBE_MAP_ARRAY
:
480 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
481 return ctx
->Extensions
.ARB_texture_cube_map_array
482 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
483 case GL_TEXTURE_BUFFER
:
484 return ctx
->API
== API_OPENGL_CORE
&&
485 ctx
->Extensions
.ARB_texture_buffer_object
? 1 : 0;
486 case GL_TEXTURE_2D_MULTISAMPLE
:
487 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
488 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
489 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
490 return (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles31(ctx
))
491 && ctx
->Extensions
.ARB_texture_multisample
493 case GL_TEXTURE_EXTERNAL_OES
:
496 return 0; /* bad target */
502 * Return number of dimensions per mipmap level for the given texture target.
505 _mesa_get_texture_dimensions(GLenum target
)
509 case GL_PROXY_TEXTURE_1D
:
512 case GL_TEXTURE_RECTANGLE
:
513 case GL_TEXTURE_CUBE_MAP
:
514 case GL_PROXY_TEXTURE_2D
:
515 case GL_PROXY_TEXTURE_RECTANGLE
:
516 case GL_PROXY_TEXTURE_CUBE_MAP
:
517 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
518 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
519 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
520 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
521 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
522 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
523 case GL_TEXTURE_1D_ARRAY
:
524 case GL_PROXY_TEXTURE_1D_ARRAY
:
525 case GL_TEXTURE_EXTERNAL_OES
:
526 case GL_TEXTURE_2D_MULTISAMPLE
:
527 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
530 case GL_PROXY_TEXTURE_3D
:
531 case GL_TEXTURE_2D_ARRAY
:
532 case GL_PROXY_TEXTURE_2D_ARRAY
:
533 case GL_TEXTURE_CUBE_MAP_ARRAY
:
534 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
535 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
536 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
538 case GL_TEXTURE_BUFFER
:
541 _mesa_problem(NULL
, "invalid target 0x%x in get_texture_dimensions()",
549 * Check if a texture target can have more than one layer.
552 _mesa_tex_target_is_layered(GLenum target
)
556 case GL_PROXY_TEXTURE_1D
:
558 case GL_PROXY_TEXTURE_2D
:
559 case GL_TEXTURE_RECTANGLE
:
560 case GL_PROXY_TEXTURE_RECTANGLE
:
561 case GL_TEXTURE_2D_MULTISAMPLE
:
562 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
563 case GL_TEXTURE_BUFFER
:
564 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
565 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
566 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
567 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
568 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
569 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
570 case GL_TEXTURE_EXTERNAL_OES
:
574 case GL_PROXY_TEXTURE_3D
:
575 case GL_TEXTURE_CUBE_MAP
:
576 case GL_PROXY_TEXTURE_CUBE_MAP
:
577 case GL_TEXTURE_1D_ARRAY
:
578 case GL_PROXY_TEXTURE_1D_ARRAY
:
579 case GL_TEXTURE_2D_ARRAY
:
580 case GL_PROXY_TEXTURE_2D_ARRAY
:
581 case GL_TEXTURE_CUBE_MAP_ARRAY
:
582 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
583 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
584 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
588 assert(!"Invalid texture target.");
595 * Return the number of layers present in the given level of an array,
596 * cubemap or 3D texture. If the texture is not layered return zero.
599 _mesa_get_texture_layers(const struct gl_texture_object
*texObj
, GLint level
)
601 assert(level
>= 0 && level
< MAX_TEXTURE_LEVELS
);
603 switch (texObj
->Target
) {
606 case GL_TEXTURE_RECTANGLE
:
607 case GL_TEXTURE_2D_MULTISAMPLE
:
608 case GL_TEXTURE_BUFFER
:
609 case GL_TEXTURE_EXTERNAL_OES
:
612 case GL_TEXTURE_CUBE_MAP
:
615 case GL_TEXTURE_1D_ARRAY
: {
616 struct gl_texture_image
*img
= texObj
->Image
[0][level
];
617 return img
? img
->Height
: 0;
621 case GL_TEXTURE_2D_ARRAY
:
622 case GL_TEXTURE_CUBE_MAP_ARRAY
:
623 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
: {
624 struct gl_texture_image
*img
= texObj
->Image
[0][level
];
625 return img
? img
->Depth
: 0;
629 assert(!"Invalid texture target.");
636 * Return the maximum number of mipmap levels for the given target
637 * and the dimensions.
638 * The dimensions are expected not to include the border.
641 _mesa_get_tex_max_num_levels(GLenum target
, GLsizei width
, GLsizei height
,
648 case GL_TEXTURE_1D_ARRAY
:
649 case GL_PROXY_TEXTURE_1D
:
650 case GL_PROXY_TEXTURE_1D_ARRAY
:
653 case GL_TEXTURE_CUBE_MAP
:
654 case GL_TEXTURE_CUBE_MAP_ARRAY
:
655 case GL_PROXY_TEXTURE_CUBE_MAP
:
656 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
660 case GL_TEXTURE_2D_ARRAY
:
661 case GL_PROXY_TEXTURE_2D
:
662 case GL_PROXY_TEXTURE_2D_ARRAY
:
663 size
= MAX2(width
, height
);
666 case GL_PROXY_TEXTURE_3D
:
667 size
= MAX3(width
, height
, depth
);
669 case GL_TEXTURE_RECTANGLE
:
670 case GL_TEXTURE_EXTERNAL_OES
:
671 case GL_TEXTURE_2D_MULTISAMPLE
:
672 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
673 case GL_PROXY_TEXTURE_RECTANGLE
:
674 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
675 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
682 return _mesa_logbase2(size
) + 1;
686 #if 000 /* not used anymore */
688 * glTexImage[123]D can accept a NULL image pointer. In this case we
689 * create a texture image with unspecified image contents per the OpenGL
693 make_null_texture(GLint width
, GLint height
, GLint depth
, GLenum format
)
695 const GLint components
= _mesa_components_in_format(format
);
696 const GLint numPixels
= width
* height
* depth
;
697 GLubyte
*data
= (GLubyte
*) malloc(numPixels
* components
* sizeof(GLubyte
));
701 * Let's see if anyone finds this. If glTexImage2D() is called with
702 * a NULL image pointer then load the texture image with something
703 * interesting instead of leaving it indeterminate.
706 static const char message
[8][32] = {
710 " X X XXXX XXX XXXXX ",
713 " X X XXXXX XXX X X ",
717 GLubyte
*imgPtr
= data
;
719 for (h
= 0; h
< depth
; h
++) {
720 for (i
= 0; i
< height
; i
++) {
721 GLint srcRow
= 7 - (i
% 8);
722 for (j
= 0; j
< width
; j
++) {
723 GLint srcCol
= j
% 32;
724 GLubyte texel
= (message
[srcRow
][srcCol
]=='X') ? 255 : 70;
725 for (k
= 0; k
< components
; k
++) {
741 * Set the size and format-related fields of a gl_texture_image struct
742 * to zero. This is used when a proxy texture test fails.
745 clear_teximage_fields(struct gl_texture_image
*img
)
748 img
->_BaseFormat
= 0;
749 img
->InternalFormat
= 0;
760 img
->TexFormat
= MESA_FORMAT_NONE
;
762 img
->FixedSampleLocations
= GL_TRUE
;
767 * Initialize basic fields of the gl_texture_image struct.
769 * \param ctx GL context.
770 * \param img texture image structure to be initialized.
771 * \param width image width.
772 * \param height image height.
773 * \param depth image depth.
774 * \param border image border.
775 * \param internalFormat internal format.
776 * \param format the actual hardware format (one of MESA_FORMAT_*)
777 * \param numSamples number of samples per texel, or zero for non-MS.
778 * \param fixedSampleLocations are sample locations fixed?
780 * Fills in the fields of \p img with the given information.
781 * Note: width, height and depth include the border.
784 init_teximage_fields_ms(struct gl_context
*ctx
,
785 struct gl_texture_image
*img
,
786 GLsizei width
, GLsizei height
, GLsizei depth
,
787 GLint border
, GLenum internalFormat
,
789 GLuint numSamples
, GLboolean fixedSampleLocations
)
797 target
= img
->TexObject
->Target
;
798 img
->_BaseFormat
= _mesa_base_tex_format( ctx
, internalFormat
);
799 assert(img
->_BaseFormat
!= -1);
800 img
->InternalFormat
= internalFormat
;
801 img
->Border
= border
;
803 img
->Height
= height
;
806 img
->Width2
= width
- 2 * border
; /* == 1 << img->WidthLog2; */
807 img
->WidthLog2
= _mesa_logbase2(img
->Width2
);
810 img
->FixedSampleLocations
= GL_TRUE
;
814 case GL_TEXTURE_BUFFER
:
815 case GL_PROXY_TEXTURE_1D
:
827 case GL_TEXTURE_1D_ARRAY
:
828 case GL_PROXY_TEXTURE_1D_ARRAY
:
829 img
->Height2
= height
; /* no border */
830 img
->HeightLog2
= 0; /* not used */
838 case GL_TEXTURE_RECTANGLE
:
839 case GL_TEXTURE_CUBE_MAP
:
840 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
841 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
842 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
843 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
844 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
845 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
846 case GL_TEXTURE_EXTERNAL_OES
:
847 case GL_PROXY_TEXTURE_2D
:
848 case GL_PROXY_TEXTURE_RECTANGLE
:
849 case GL_PROXY_TEXTURE_CUBE_MAP
:
850 case GL_TEXTURE_2D_MULTISAMPLE
:
851 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
852 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
853 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
860 case GL_TEXTURE_2D_ARRAY
:
861 case GL_PROXY_TEXTURE_2D_ARRAY
:
862 case GL_TEXTURE_CUBE_MAP_ARRAY
:
863 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
864 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
865 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
866 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
867 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
868 img
->Depth2
= depth
; /* no border */
869 img
->DepthLog2
= 0; /* not used */
872 case GL_PROXY_TEXTURE_3D
:
873 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
874 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
875 img
->Depth2
= depth
- 2 * border
; /* == 1 << img->DepthLog2; */
876 img
->DepthLog2
= _mesa_logbase2(img
->Depth2
);
879 _mesa_problem(NULL
, "invalid target 0x%x in _mesa_init_teximage_fields()",
884 _mesa_get_tex_max_num_levels(target
,
885 img
->Width2
, img
->Height2
, img
->Depth2
);
886 img
->TexFormat
= format
;
887 img
->NumSamples
= numSamples
;
888 img
->FixedSampleLocations
= fixedSampleLocations
;
893 _mesa_init_teximage_fields(struct gl_context
*ctx
,
894 struct gl_texture_image
*img
,
895 GLsizei width
, GLsizei height
, GLsizei depth
,
896 GLint border
, GLenum internalFormat
,
899 init_teximage_fields_ms(ctx
, img
, width
, height
, depth
, border
,
900 internalFormat
, format
, 0, GL_TRUE
);
905 * Free and clear fields of the gl_texture_image struct.
907 * \param ctx GL context.
908 * \param texImage texture image structure to be cleared.
910 * After the call, \p texImage will have no data associated with it. Its
911 * fields are cleared so that its parent object will test incomplete.
914 _mesa_clear_texture_image(struct gl_context
*ctx
,
915 struct gl_texture_image
*texImage
)
917 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
918 clear_teximage_fields(texImage
);
923 * Check the width, height, depth and border of a texture image are legal.
924 * Used by all the glTexImage, glCompressedTexImage and glCopyTexImage
926 * The target and level parameters will have already been validated.
927 * \return GL_TRUE if size is OK, GL_FALSE otherwise.
930 _mesa_legal_texture_dimensions(struct gl_context
*ctx
, GLenum target
,
931 GLint level
, GLint width
, GLint height
,
932 GLint depth
, GLint border
)
938 case GL_PROXY_TEXTURE_1D
:
939 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1); /* level zero size */
940 maxSize
>>= level
; /* level size */
941 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
943 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
944 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
950 case GL_PROXY_TEXTURE_2D
:
951 case GL_TEXTURE_2D_MULTISAMPLE
:
952 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
953 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
955 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
957 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
959 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
960 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
962 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
968 case GL_PROXY_TEXTURE_3D
:
969 maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
971 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
973 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
975 if (depth
< 2 * border
|| depth
> 2 * border
+ maxSize
)
977 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
978 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
980 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
982 if (depth
> 0 && !_mesa_is_pow_two(depth
- 2 * border
))
987 case GL_TEXTURE_RECTANGLE_NV
:
988 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
991 maxSize
= ctx
->Const
.MaxTextureRectSize
;
992 if (width
< 0 || width
> maxSize
)
994 if (height
< 0 || height
> maxSize
)
998 case GL_TEXTURE_CUBE_MAP
:
999 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1000 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1001 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1002 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1003 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1004 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1005 case GL_PROXY_TEXTURE_CUBE_MAP
:
1006 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1008 if (width
!= height
)
1010 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1012 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1014 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1015 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1017 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1022 case GL_TEXTURE_1D_ARRAY_EXT
:
1023 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1024 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1026 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1028 if (height
< 0 || height
> ctx
->Const
.MaxArrayTextureLayers
)
1030 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1031 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1036 case GL_TEXTURE_2D_ARRAY_EXT
:
1037 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1038 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1039 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1040 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1042 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1044 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1046 if (depth
< 0 || depth
> ctx
->Const
.MaxArrayTextureLayers
)
1048 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1049 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1051 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1056 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1057 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1058 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1059 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1061 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1063 if (depth
< 0 || depth
> ctx
->Const
.MaxArrayTextureLayers
|| depth
% 6)
1065 if (width
!= height
)
1067 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
1069 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1070 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1072 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1077 _mesa_problem(ctx
, "Invalid target in _mesa_legal_texture_dimensions()");
1084 * Do error checking of xoffset, yoffset, zoffset, width, height and depth
1085 * for glTexSubImage, glCopyTexSubImage and glCompressedTexSubImage.
1086 * \param destImage the destination texture image.
1087 * \return GL_TRUE if error found, GL_FALSE otherwise.
1090 error_check_subtexture_dimensions(struct gl_context
*ctx
, GLuint dims
,
1091 const struct gl_texture_image
*destImage
,
1092 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1093 GLsizei subWidth
, GLsizei subHeight
,
1094 GLsizei subDepth
, const char *func
)
1096 const GLenum target
= destImage
->TexObject
->Target
;
1101 _mesa_error(ctx
, GL_INVALID_VALUE
,
1102 "%s(width=%d)", func
, subWidth
);
1106 if (dims
> 1 && subHeight
< 0) {
1107 _mesa_error(ctx
, GL_INVALID_VALUE
,
1108 "%s(height=%d)", func
, subHeight
);
1112 if (dims
> 2 && subDepth
< 0) {
1113 _mesa_error(ctx
, GL_INVALID_VALUE
,
1114 "%s(depth=%d)", func
, subDepth
);
1118 /* check xoffset and width */
1119 if (xoffset
< - (GLint
) destImage
->Border
) {
1120 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(xoffset)", func
);
1124 if (xoffset
+ subWidth
> (GLint
) destImage
->Width
) {
1125 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(xoffset+width)", func
);
1129 /* check yoffset and height */
1131 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : destImage
->Border
;
1132 if (yoffset
< -yBorder
) {
1133 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(yoffset)", func
);
1136 if (yoffset
+ subHeight
> (GLint
) destImage
->Height
) {
1137 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(yoffset+height)", func
);
1142 /* check zoffset and depth */
1145 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
||
1146 target
== GL_TEXTURE_CUBE_MAP_ARRAY
) ?
1147 0 : destImage
->Border
;
1149 if (zoffset
< -zBorder
) {
1150 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(zoffset)", func
);
1154 depth
= (GLint
) destImage
->Depth
;
1155 if (target
== GL_TEXTURE_CUBE_MAP
)
1157 if (zoffset
+ subDepth
> depth
) {
1158 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(zoffset+depth)", func
);
1164 * The OpenGL spec (and GL_ARB_texture_compression) says only whole
1165 * compressed texture images can be updated. But, that restriction may be
1166 * relaxed for particular compressed formats. At this time, all the
1167 * compressed formats supported by Mesa allow sub-textures to be updated
1168 * along compressed block boundaries.
1170 _mesa_get_format_block_size(destImage
->TexFormat
, &bw
, &bh
);
1172 if (bw
!= 1 || bh
!= 1) {
1173 /* offset must be multiple of block size */
1174 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0)) {
1175 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1176 "%s(xoffset = %d, yoffset = %d)",
1177 func
, xoffset
, yoffset
);
1181 /* The size must be a multiple of bw x bh, or we must be using a
1182 * offset+size that exactly hits the edge of the image. This
1183 * is important for small mipmap levels (1x1, 2x1, etc) and for
1186 if ((subWidth
% bw
!= 0) &&
1187 (xoffset
+ subWidth
!= (GLint
) destImage
->Width
)) {
1188 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1189 "%s(width = %d)", func
, subWidth
);
1193 if ((subHeight
% bh
!= 0) &&
1194 (yoffset
+ subHeight
!= (GLint
) destImage
->Height
)) {
1195 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1196 "%s(height = %d)", func
, subHeight
);
1208 * This is the fallback for Driver.TestProxyTexImage() for doing device-
1209 * specific texture image size checks.
1211 * A hardware driver might override this function if, for example, the
1212 * max 3D texture size is 512x512x64 (i.e. not a cube).
1214 * Note that width, height, depth == 0 is not an error. However, a
1215 * texture with zero width/height/depth will be considered "incomplete"
1216 * and texturing will effectively be disabled.
1218 * \param target any texture target/type
1219 * \param level as passed to glTexImage
1220 * \param format the MESA_FORMAT_x for the tex image
1221 * \param width as passed to glTexImage
1222 * \param height as passed to glTexImage
1223 * \param depth as passed to glTexImage
1224 * \param border as passed to glTexImage
1225 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1228 _mesa_test_proxy_teximage(struct gl_context
*ctx
, GLenum target
, GLint level
,
1230 GLint width
, GLint height
, GLint depth
, GLint border
)
1232 /* We just check if the image size is less than MaxTextureMbytes.
1233 * Some drivers may do more specific checks.
1235 uint64_t bytes
= _mesa_format_image_size64(format
, width
, height
, depth
);
1236 uint64_t mbytes
= bytes
/ (1024 * 1024); /* convert to MB */
1237 mbytes
*= _mesa_num_tex_faces(target
);
1238 return mbytes
<= (uint64_t) ctx
->Const
.MaxTextureMbytes
;
1243 * Return true if the format is only valid for glCompressedTexImage.
1246 compressedteximage_only_format(const struct gl_context
*ctx
, GLenum format
)
1249 case GL_ETC1_RGB8_OES
:
1250 case GL_PALETTE4_RGB8_OES
:
1251 case GL_PALETTE4_RGBA8_OES
:
1252 case GL_PALETTE4_R5_G6_B5_OES
:
1253 case GL_PALETTE4_RGBA4_OES
:
1254 case GL_PALETTE4_RGB5_A1_OES
:
1255 case GL_PALETTE8_RGB8_OES
:
1256 case GL_PALETTE8_RGBA8_OES
:
1257 case GL_PALETTE8_R5_G6_B5_OES
:
1258 case GL_PALETTE8_RGBA4_OES
:
1259 case GL_PALETTE8_RGB5_A1_OES
:
1267 * Return true if the format doesn't support online compression.
1270 _mesa_format_no_online_compression(const struct gl_context
*ctx
, GLenum format
)
1272 return _mesa_is_astc_format(format
) ||
1273 compressedteximage_only_format(ctx
, format
);
1276 /* Writes to an GL error pointer if non-null and returns whether or not the
1277 * error is GL_NO_ERROR */
1279 write_error(GLenum
*err_ptr
, GLenum error
)
1284 return error
== GL_NO_ERROR
;
1288 * Helper function to determine whether a target and specific compression
1289 * format are supported. The error parameter returns GL_NO_ERROR if the
1290 * target can be compressed. Otherwise it returns either GL_INVALID_OPERATION
1291 * or GL_INVALID_ENUM, whichever is more appropriate.
1294 _mesa_target_can_be_compressed(const struct gl_context
*ctx
, GLenum target
,
1295 GLenum intFormat
, GLenum
*error
)
1297 GLboolean target_can_be_compresed
= GL_FALSE
;
1298 mesa_format format
= _mesa_glenum_to_compressed_format(intFormat
);
1299 enum mesa_format_layout layout
= _mesa_get_format_layout(format
);
1303 case GL_PROXY_TEXTURE_2D
:
1304 target_can_be_compresed
= GL_TRUE
; /* true for any compressed format so far */
1306 case GL_PROXY_TEXTURE_CUBE_MAP
:
1307 case GL_TEXTURE_CUBE_MAP
:
1308 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1309 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1310 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1311 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1312 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1313 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1314 target_can_be_compresed
= ctx
->Extensions
.ARB_texture_cube_map
;
1316 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1317 case GL_TEXTURE_2D_ARRAY_EXT
:
1318 target_can_be_compresed
= ctx
->Extensions
.EXT_texture_array
;
1320 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1321 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1322 /* From the KHR_texture_compression_astc_hdr spec:
1324 * Add a second new column "3D Tex." which is empty for all non-ASTC
1325 * formats. If only the LDR profile is supported by the
1326 * implementation, this column is also empty for all ASTC formats. If
1327 * both the LDR and HDR profiles are supported only, this column is
1328 * checked for all ASTC formats.
1330 * Add a third new column "Cube Map Array Tex." which is empty for all
1331 * non-ASTC formats, and checked for all ASTC formats.
1335 * 'An INVALID_OPERATION error is generated by CompressedTexImage3D
1336 * if <internalformat> is TEXTURE_CUBE_MAP_ARRAY and the
1337 * "Cube Map Array" column of table 8.19 is *not* checked, or if
1338 * <internalformat> is TEXTURE_3D and the "3D Tex." column of table
1339 * 8.19 is *not* checked'
1341 * The instances of <internalformat> above should say <target>.
1343 * ETC2/EAC formats are the only alternative in GLES and thus such errors
1344 * have already been handled by normal ETC2/EAC behavior.
1347 /* From section 3.8.6, page 146 of OpenGL ES 3.0 spec:
1349 * "The ETC2/EAC texture compression algorithm supports only
1350 * two-dimensional images. If internalformat is an ETC2/EAC format,
1351 * glCompressedTexImage3D will generate an INVALID_OPERATION error if
1352 * target is not TEXTURE_2D_ARRAY."
1354 * This should also be applicable for glTexStorage3D(). Other available
1355 * targets for these functions are: TEXTURE_3D and TEXTURE_CUBE_MAP_ARRAY.
1357 if (layout
== MESA_FORMAT_LAYOUT_ETC2
&& _mesa_is_gles3(ctx
))
1358 return write_error(error
, GL_INVALID_OPERATION
);
1359 target_can_be_compresed
= ctx
->Extensions
.ARB_texture_cube_map_array
;
1363 case MESA_FORMAT_LAYOUT_ETC2
:
1364 /* See ETC2/EAC comment in case GL_TEXTURE_CUBE_MAP_ARRAY. */
1365 if (_mesa_is_gles3(ctx
))
1366 return write_error(error
, GL_INVALID_OPERATION
);
1368 case MESA_FORMAT_LAYOUT_BPTC
:
1369 target_can_be_compresed
= ctx
->Extensions
.ARB_texture_compression_bptc
;
1371 case MESA_FORMAT_LAYOUT_ASTC
:
1372 target_can_be_compresed
=
1373 ctx
->Extensions
.KHR_texture_compression_astc_hdr
;
1375 /* Throw an INVALID_OPERATION error if the target is TEXTURE_3D and
1376 * and the hdr extension is not supported.
1377 * See comment in switch case GL_TEXTURE_CUBE_MAP_ARRAY for more info.
1379 if (!target_can_be_compresed
)
1380 return write_error(error
, GL_INVALID_OPERATION
);
1388 return write_error(error
,
1389 target_can_be_compresed
? GL_NO_ERROR
: GL_INVALID_ENUM
);
1394 * Check if the given texture target value is legal for a
1395 * glTexImage1/2/3D call.
1398 legal_teximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1404 case GL_PROXY_TEXTURE_1D
:
1405 return _mesa_is_desktop_gl(ctx
);
1413 case GL_PROXY_TEXTURE_2D
:
1414 return _mesa_is_desktop_gl(ctx
);
1415 case GL_PROXY_TEXTURE_CUBE_MAP
:
1416 return _mesa_is_desktop_gl(ctx
)
1417 && ctx
->Extensions
.ARB_texture_cube_map
;
1418 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1419 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1420 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1421 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1422 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1423 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1424 return ctx
->Extensions
.ARB_texture_cube_map
;
1425 case GL_TEXTURE_RECTANGLE_NV
:
1426 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1427 return _mesa_is_desktop_gl(ctx
)
1428 && ctx
->Extensions
.NV_texture_rectangle
;
1429 case GL_TEXTURE_1D_ARRAY_EXT
:
1430 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1431 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
;
1439 case GL_PROXY_TEXTURE_3D
:
1440 return _mesa_is_desktop_gl(ctx
);
1441 case GL_TEXTURE_2D_ARRAY_EXT
:
1442 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1443 || _mesa_is_gles3(ctx
);
1444 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1445 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
;
1446 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1447 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1448 return ctx
->Extensions
.ARB_texture_cube_map_array
;
1453 _mesa_problem(ctx
, "invalid dims=%u in legal_teximage_target()", dims
);
1460 * Check if the given texture target value is legal for a
1461 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1462 * The difference compared to legal_teximage_target() above is that
1463 * proxy targets are not supported.
1466 legal_texsubimage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
,
1471 return _mesa_is_desktop_gl(ctx
) && target
== GL_TEXTURE_1D
;
1476 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1477 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1478 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1479 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1480 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1481 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1482 return ctx
->Extensions
.ARB_texture_cube_map
;
1483 case GL_TEXTURE_RECTANGLE_NV
:
1484 return _mesa_is_desktop_gl(ctx
)
1485 && ctx
->Extensions
.NV_texture_rectangle
;
1486 case GL_TEXTURE_1D_ARRAY_EXT
:
1487 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
;
1495 case GL_TEXTURE_2D_ARRAY_EXT
:
1496 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1497 || _mesa_is_gles3(ctx
);
1498 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1499 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1500 return ctx
->Extensions
.ARB_texture_cube_map_array
;
1502 /* Table 8.15 of the OpenGL 4.5 core profile spec
1503 * (20141030) says that TEXTURE_CUBE_MAP is valid for TextureSubImage3D
1504 * and CopyTextureSubImage3D.
1506 case GL_TEXTURE_CUBE_MAP
:
1512 _mesa_problem(ctx
, "invalid dims=%u in legal_texsubimage_target()",
1520 * Helper function to determine if a texture object is mutable (in terms
1521 * of GL_ARB_texture_storage).
1524 mutable_tex_object(struct gl_context
*ctx
, GLenum target
)
1526 struct gl_texture_object
*texObj
= _mesa_get_current_tex_object(ctx
, target
);
1530 return !texObj
->Immutable
;
1535 * Return expected size of a compressed texture.
1538 compressed_tex_size(GLsizei width
, GLsizei height
, GLsizei depth
,
1541 mesa_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
1542 return _mesa_format_image_size(mesaFormat
, width
, height
, depth
);
1546 * Verify that a texture format is valid with a particular target
1548 * In particular, textures with base format of \c GL_DEPTH_COMPONENT or
1549 * \c GL_DEPTH_STENCIL are only valid with certain, context dependent texture
1552 * \param ctx GL context
1553 * \param target Texture target
1554 * \param internalFormat Internal format of the texture image
1556 * \returns true if the combination is legal, false otherwise.
1559 _mesa_legal_texture_base_format_for_target(struct gl_context
*ctx
,
1560 GLenum target
, GLenum internalFormat
)
1562 if (_mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_COMPONENT
1563 || _mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_STENCIL
1564 || _mesa_base_tex_format(ctx
, internalFormat
) == GL_STENCIL_INDEX
) {
1565 /* Section 3.8.3 (Texture Image Specification) of the OpenGL 3.3 Core
1566 * Profile spec says:
1568 * "Textures with a base internal format of DEPTH_COMPONENT or
1569 * DEPTH_STENCIL are supported by texture image specification
1570 * commands only if target is TEXTURE_1D, TEXTURE_2D,
1571 * TEXTURE_1D_ARRAY, TEXTURE_2D_ARRAY, TEXTURE_RECTANGLE,
1572 * TEXTURE_CUBE_MAP, PROXY_TEXTURE_1D, PROXY_TEXTURE_2D,
1573 * PROXY_TEXTURE_1D_ARRAY, PROXY_TEXTURE_2D_ARRAY,
1574 * PROXY_TEXTURE_RECTANGLE, or PROXY_TEXTURE_CUBE_MAP. Using these
1575 * formats in conjunction with any other target will result in an
1576 * INVALID_OPERATION error."
1578 * Cubemaps are only supported with desktop OpenGL version >= 3.0,
1579 * EXT_gpu_shader4, or, on OpenGL ES 2.0+, OES_depth_texture_cube_map.
1581 if (target
!= GL_TEXTURE_1D
&&
1582 target
!= GL_PROXY_TEXTURE_1D
&&
1583 target
!= GL_TEXTURE_2D
&&
1584 target
!= GL_PROXY_TEXTURE_2D
&&
1585 target
!= GL_TEXTURE_1D_ARRAY
&&
1586 target
!= GL_PROXY_TEXTURE_1D_ARRAY
&&
1587 target
!= GL_TEXTURE_2D_ARRAY
&&
1588 target
!= GL_PROXY_TEXTURE_2D_ARRAY
&&
1589 target
!= GL_TEXTURE_RECTANGLE_ARB
&&
1590 target
!= GL_PROXY_TEXTURE_RECTANGLE_ARB
&&
1591 !((_mesa_is_cube_face(target
) ||
1592 target
== GL_TEXTURE_CUBE_MAP
||
1593 target
== GL_PROXY_TEXTURE_CUBE_MAP
) &&
1594 (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_gpu_shader4
1595 || (ctx
->API
== API_OPENGLES2
&& ctx
->Extensions
.OES_depth_texture_cube_map
))) &&
1596 !((target
== GL_TEXTURE_CUBE_MAP_ARRAY
||
1597 target
== GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
) &&
1598 ctx
->Extensions
.ARB_texture_cube_map_array
)) {
1607 texture_formats_agree(GLenum internalFormat
,
1610 GLboolean colorFormat
;
1611 GLboolean is_format_depth_or_depthstencil
;
1612 GLboolean is_internalFormat_depth_or_depthstencil
;
1614 /* Even though there are no color-index textures, we still have to support
1615 * uploading color-index data and remapping it to RGB via the
1616 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1618 const GLboolean indexFormat
= (format
== GL_COLOR_INDEX
);
1620 is_internalFormat_depth_or_depthstencil
=
1621 _mesa_is_depth_format(internalFormat
) ||
1622 _mesa_is_depthstencil_format(internalFormat
);
1624 is_format_depth_or_depthstencil
=
1625 _mesa_is_depth_format(format
) ||
1626 _mesa_is_depthstencil_format(format
);
1628 colorFormat
= _mesa_is_color_format(format
);
1630 if (_mesa_is_color_format(internalFormat
) && !colorFormat
&& !indexFormat
)
1633 if (is_internalFormat_depth_or_depthstencil
!=
1634 is_format_depth_or_depthstencil
)
1637 if (_mesa_is_ycbcr_format(internalFormat
) != _mesa_is_ycbcr_format(format
))
1644 * Test the combination of format, type and internal format arguments of
1645 * different texture operations on GLES.
1647 * \param ctx GL context.
1648 * \param format pixel data format given by the user.
1649 * \param type pixel data type given by the user.
1650 * \param internalFormat internal format given by the user.
1651 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1652 * \param callerName name of the caller function to print in the error message
1654 * \return true if a error is found, false otherwise
1656 * Currently, it is used by texture_error_check() and texsubimage_error_check().
1659 texture_format_error_check_gles(struct gl_context
*ctx
, GLenum format
,
1660 GLenum type
, GLenum internalFormat
,
1661 GLuint dimensions
, const char *callerName
)
1665 if (_mesa_is_gles3(ctx
)) {
1666 err
= _mesa_es3_error_check_format_and_type(ctx
, format
, type
,
1668 if (err
!= GL_NO_ERROR
) {
1669 _mesa_error(ctx
, err
,
1670 "%s(format = %s, type = %s, internalformat = %s)",
1671 callerName
, _mesa_enum_to_string(format
),
1672 _mesa_enum_to_string(type
),
1673 _mesa_enum_to_string(internalFormat
));
1678 err
= _mesa_es_error_check_format_and_type(ctx
, format
, type
, dimensions
);
1679 if (err
!= GL_NO_ERROR
) {
1680 _mesa_error(ctx
, err
, "%s(format = %s, type = %s)",
1681 callerName
, _mesa_enum_to_string(format
),
1682 _mesa_enum_to_string(type
));
1691 * Test the glTexImage[123]D() parameters for errors.
1693 * \param ctx GL context.
1694 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1695 * \param target texture target given by the user (already validated).
1696 * \param level image level given by the user.
1697 * \param internalFormat internal format given by the user.
1698 * \param format pixel data format given by the user.
1699 * \param type pixel data type given by the user.
1700 * \param width image width given by the user.
1701 * \param height image height given by the user.
1702 * \param depth image depth given by the user.
1703 * \param border image border given by the user.
1705 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1707 * Verifies each of the parameters against the constants specified in
1708 * __struct gl_contextRec::Const and the supported extensions, and according
1709 * to the OpenGL specification.
1710 * Note that we don't fully error-check the width, height, depth values
1711 * here. That's done in _mesa_legal_texture_dimensions() which is used
1712 * by several other GL entrypoints. Plus, texture dims have a special
1713 * interaction with proxy textures.
1716 texture_error_check( struct gl_context
*ctx
,
1717 GLuint dimensions
, GLenum target
,
1718 GLint level
, GLint internalFormat
,
1719 GLenum format
, GLenum type
,
1720 GLint width
, GLint height
,
1721 GLint depth
, GLint border
,
1722 const GLvoid
*pixels
)
1726 /* Note: for proxy textures, some error conditions immediately generate
1727 * a GL error in the usual way. But others do not generate a GL error.
1728 * Instead, they cause the width, height, depth, format fields of the
1729 * texture image to be zeroed-out. The GL spec seems to indicate that the
1730 * zero-out behaviour is only used in cases related to memory allocation.
1734 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
1735 _mesa_error(ctx
, GL_INVALID_VALUE
,
1736 "glTexImage%dD(level=%d)", dimensions
, level
);
1741 if (border
< 0 || border
> 1 ||
1742 ((ctx
->API
!= API_OPENGL_COMPAT
||
1743 target
== GL_TEXTURE_RECTANGLE_NV
||
1744 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1745 _mesa_error(ctx
, GL_INVALID_VALUE
,
1746 "glTexImage%dD(border=%d)", dimensions
, border
);
1750 if (width
< 0 || height
< 0 || depth
< 0) {
1751 _mesa_error(ctx
, GL_INVALID_VALUE
,
1752 "glTexImage%dD(width, height or depth < 0)", dimensions
);
1756 /* Check incoming image format and type */
1757 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
1758 if (err
!= GL_NO_ERROR
) {
1759 /* Prior to OpenGL-ES 2.0, an INVALID_VALUE is expected instead of
1760 * INVALID_ENUM. From page 73 OpenGL ES 1.1 spec:
1762 * "Specifying a value for internalformat that is not one of the
1763 * above (acceptable) values generates the error INVALID VALUE."
1765 if (err
== GL_INVALID_ENUM
&& _mesa_is_gles(ctx
) && ctx
->Version
< 20)
1766 err
= GL_INVALID_VALUE
;
1768 _mesa_error(ctx
, err
,
1769 "glTexImage%dD(incompatible format = %s, type = %s)",
1770 dimensions
, _mesa_enum_to_string(format
),
1771 _mesa_enum_to_string(type
));
1775 /* Check internalFormat */
1776 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1777 _mesa_error(ctx
, GL_INVALID_VALUE
,
1778 "glTexImage%dD(internalFormat=%s)",
1779 dimensions
, _mesa_enum_to_string(internalFormat
));
1783 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1784 * combinations of format, internalFormat, and type that can be used.
1785 * Formats and types that require additional extensions (e.g., GL_FLOAT
1786 * requires GL_OES_texture_float) are filtered elsewhere.
1788 if (_mesa_is_gles(ctx
) &&
1789 texture_format_error_check_gles(ctx
, format
, type
, internalFormat
,
1790 dimensions
, "glTexImage%dD")) {
1794 /* validate the bound PBO, if any */
1795 if (!_mesa_validate_pbo_source(ctx
, dimensions
, &ctx
->Unpack
,
1796 width
, height
, depth
, format
, type
,
1797 INT_MAX
, pixels
, "glTexImage")) {
1801 /* make sure internal format and format basically agree */
1802 if (!texture_formats_agree(internalFormat
, format
)) {
1803 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1804 "glTexImage%dD(incompatible internalFormat = %s, format = %s)",
1805 dimensions
, _mesa_enum_to_string(internalFormat
),
1806 _mesa_enum_to_string(format
));
1810 /* additional checks for ycbcr textures */
1811 if (internalFormat
== GL_YCBCR_MESA
) {
1812 assert(ctx
->Extensions
.MESA_ycbcr_texture
);
1813 if (type
!= GL_UNSIGNED_SHORT_8_8_MESA
&&
1814 type
!= GL_UNSIGNED_SHORT_8_8_REV_MESA
) {
1816 _mesa_snprintf(message
, sizeof(message
),
1817 "glTexImage%dD(format/type YCBCR mismatch)",
1819 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", message
);
1820 return GL_TRUE
; /* error */
1822 if (target
!= GL_TEXTURE_2D
&&
1823 target
!= GL_PROXY_TEXTURE_2D
&&
1824 target
!= GL_TEXTURE_RECTANGLE_NV
&&
1825 target
!= GL_PROXY_TEXTURE_RECTANGLE_NV
) {
1826 _mesa_error(ctx
, GL_INVALID_ENUM
,
1827 "glTexImage%dD(bad target for YCbCr texture)",
1833 _mesa_snprintf(message
, sizeof(message
),
1834 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1835 dimensions
, border
);
1836 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", message
);
1841 /* additional checks for depth textures */
1842 if (!_mesa_legal_texture_base_format_for_target(ctx
, target
, internalFormat
)) {
1843 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1844 "glTexImage%dD(bad target for texture)", dimensions
);
1848 /* additional checks for compressed textures */
1849 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
1851 if (!_mesa_target_can_be_compressed(ctx
, target
, internalFormat
, &err
)) {
1852 _mesa_error(ctx
, err
,
1853 "glTexImage%dD(target can't be compressed)", dimensions
);
1856 if (_mesa_format_no_online_compression(ctx
, internalFormat
)) {
1857 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1858 "glTexImage%dD(no compression for format)", dimensions
);
1862 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1863 "glTexImage%dD(border!=0)", dimensions
);
1868 /* additional checks for integer textures */
1869 if ((ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) &&
1870 (_mesa_is_enum_format_integer(format
) !=
1871 _mesa_is_enum_format_integer(internalFormat
))) {
1872 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1873 "glTexImage%dD(integer/non-integer format mismatch)",
1878 if (!mutable_tex_object(ctx
, target
)) {
1879 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1880 "glTexImage%dD(immutable texture)", dimensions
);
1884 /* if we get here, the parameters are OK */
1890 * Error checking for glCompressedTexImage[123]D().
1891 * Note that the width, height and depth values are not fully error checked
1893 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1896 compressed_texture_error_check(struct gl_context
*ctx
, GLint dimensions
,
1897 GLenum target
, GLint level
,
1898 GLenum internalFormat
, GLsizei width
,
1899 GLsizei height
, GLsizei depth
, GLint border
,
1900 GLsizei imageSize
, const GLvoid
*data
)
1902 const GLint maxLevels
= _mesa_max_texture_levels(ctx
, target
);
1904 GLenum error
= GL_NO_ERROR
;
1905 char *reason
= ""; /* no error */
1907 if (!_mesa_target_can_be_compressed(ctx
, target
, internalFormat
, &error
)) {
1912 /* This will detect any invalid internalFormat value */
1913 if (!_mesa_is_compressed_format(ctx
, internalFormat
)) {
1914 _mesa_error(ctx
, GL_INVALID_ENUM
,
1915 "glCompressedTexImage%dD(internalFormat=%s)",
1916 dimensions
, _mesa_enum_to_string(internalFormat
));
1920 /* validate the bound PBO, if any */
1921 if (!_mesa_validate_pbo_source_compressed(ctx
, dimensions
, &ctx
->Unpack
,
1923 "glCompressedTexImage")) {
1927 switch (internalFormat
) {
1928 case GL_PALETTE4_RGB8_OES
:
1929 case GL_PALETTE4_RGBA8_OES
:
1930 case GL_PALETTE4_R5_G6_B5_OES
:
1931 case GL_PALETTE4_RGBA4_OES
:
1932 case GL_PALETTE4_RGB5_A1_OES
:
1933 case GL_PALETTE8_RGB8_OES
:
1934 case GL_PALETTE8_RGBA8_OES
:
1935 case GL_PALETTE8_R5_G6_B5_OES
:
1936 case GL_PALETTE8_RGBA4_OES
:
1937 case GL_PALETTE8_RGB5_A1_OES
:
1938 /* check level (note that level should be zero or less!) */
1939 if (level
> 0 || level
< -maxLevels
) {
1941 error
= GL_INVALID_VALUE
;
1945 if (dimensions
!= 2) {
1946 reason
= "compressed paletted textures must be 2D";
1947 error
= GL_INVALID_OPERATION
;
1951 /* Figure out the expected texture size (in bytes). This will be
1952 * checked against the actual size later.
1954 expectedSize
= _mesa_cpal_compressed_size(level
, internalFormat
,
1957 /* This is for the benefit of the TestProxyTexImage below. It expects
1958 * level to be non-negative. OES_compressed_paletted_texture uses a
1959 * weird mechanism where the level specified to glCompressedTexImage2D
1960 * is -(n-1) number of levels in the texture, and the data specifies the
1961 * complete mipmap stack. This is done to ensure the palette is the
1962 * same for all levels.
1969 if (level
< 0 || level
>= maxLevels
) {
1971 error
= GL_INVALID_VALUE
;
1975 /* Figure out the expected texture size (in bytes). This will be
1976 * checked against the actual size later.
1978 expectedSize
= compressed_tex_size(width
, height
, depth
, internalFormat
);
1982 /* This should really never fail */
1983 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1984 reason
= "internalFormat";
1985 error
= GL_INVALID_ENUM
;
1989 /* No compressed formats support borders at this time */
1991 reason
= "border != 0";
1992 error
= GL_INVALID_VALUE
;
1996 /* Check for invalid pixel storage modes */
1997 if (!_mesa_compressed_pixel_storage_error_check(ctx
, dimensions
,
1999 "glCompressedTexImage")) {
2003 /* check image size in bytes */
2004 if (expectedSize
!= imageSize
) {
2005 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
2006 * if <imageSize> is not consistent with the format, dimensions, and
2007 * contents of the specified image.
2009 reason
= "imageSize inconsistent with width/height/format";
2010 error
= GL_INVALID_VALUE
;
2014 if (!mutable_tex_object(ctx
, target
)) {
2015 reason
= "immutable texture";
2016 error
= GL_INVALID_OPERATION
;
2023 /* Note: not all error paths exit through here. */
2024 _mesa_error(ctx
, error
, "glCompressedTexImage%dD(%s)",
2025 dimensions
, reason
);
2032 * Test glTexSubImage[123]D() parameters for errors.
2034 * \param ctx GL context.
2035 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2036 * \param target texture target given by the user (already validated)
2037 * \param level image level given by the user.
2038 * \param xoffset sub-image x offset given by the user.
2039 * \param yoffset sub-image y offset given by the user.
2040 * \param zoffset sub-image z offset given by the user.
2041 * \param format pixel data format given by the user.
2042 * \param type pixel data type given by the user.
2043 * \param width image width given by the user.
2044 * \param height image height given by the user.
2045 * \param depth image depth given by the user.
2047 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2049 * Verifies each of the parameters against the constants specified in
2050 * __struct gl_contextRec::Const and the supported extensions, and according
2051 * to the OpenGL specification.
2054 texsubimage_error_check(struct gl_context
*ctx
, GLuint dimensions
,
2055 struct gl_texture_object
*texObj
,
2056 GLenum target
, GLint level
,
2057 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2058 GLint width
, GLint height
, GLint depth
,
2059 GLenum format
, GLenum type
, const GLvoid
*pixels
,
2060 bool dsa
, const char *callerName
)
2062 struct gl_texture_image
*texImage
;
2066 /* must be out of memory */
2067 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s()", callerName
);
2072 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2073 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level=%d)", callerName
, level
);
2077 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
2079 /* non-existant texture level */
2080 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid texture image)",
2085 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
2086 if (err
!= GL_NO_ERROR
) {
2087 _mesa_error(ctx
, err
,
2088 "%s(incompatible format = %s, type = %s)",
2089 callerName
, _mesa_enum_to_string(format
),
2090 _mesa_enum_to_string(type
));
2094 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2095 * combinations of format, internalFormat, and type that can be used.
2096 * Formats and types that require additional extensions (e.g., GL_FLOAT
2097 * requires GL_OES_texture_float) are filtered elsewhere.
2099 if (_mesa_is_gles(ctx
) &&
2100 texture_format_error_check_gles(ctx
, format
, type
,
2101 texImage
->InternalFormat
,
2102 dimensions
, callerName
)) {
2106 /* validate the bound PBO, if any */
2107 if (!_mesa_validate_pbo_source(ctx
, dimensions
, &ctx
->Unpack
,
2108 width
, height
, depth
, format
, type
,
2109 INT_MAX
, pixels
, callerName
)) {
2113 if (error_check_subtexture_dimensions(ctx
, dimensions
,
2114 texImage
, xoffset
, yoffset
, zoffset
,
2115 width
, height
, depth
, callerName
)) {
2119 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
2120 if (_mesa_format_no_online_compression(ctx
, texImage
->InternalFormat
)) {
2121 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2122 "%s(no compression for format)", callerName
);
2127 if (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) {
2128 /* both source and dest must be integer-valued, or neither */
2129 if (_mesa_is_format_integer_color(texImage
->TexFormat
) !=
2130 _mesa_is_enum_format_integer(format
)) {
2131 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2132 "%s(integer/non-integer format mismatch)", callerName
);
2142 * Test glCopyTexImage[12]D() parameters for errors.
2144 * \param ctx GL context.
2145 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2146 * \param target texture target given by the user.
2147 * \param level image level given by the user.
2148 * \param internalFormat internal format given by the user.
2149 * \param width image width given by the user.
2150 * \param height image height given by the user.
2151 * \param border texture border.
2153 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2155 * Verifies each of the parameters against the constants specified in
2156 * __struct gl_contextRec::Const and the supported extensions, and according
2157 * to the OpenGL specification.
2160 copytexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
2161 GLenum target
, GLint level
, GLint internalFormat
,
2162 GLint width
, GLint height
, GLint border
)
2165 GLint rb_base_format
;
2166 struct gl_renderbuffer
*rb
;
2167 GLenum rb_internal_format
;
2170 if (!legal_texsubimage_target(ctx
, dimensions
, target
, false)) {
2171 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexImage%uD(target=%s)",
2172 dimensions
, _mesa_enum_to_string(target
));
2177 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2178 _mesa_error(ctx
, GL_INVALID_VALUE
,
2179 "glCopyTexImage%dD(level=%d)", dimensions
, level
);
2183 /* Check that the source buffer is complete */
2184 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2185 if (ctx
->ReadBuffer
->_Status
== 0) {
2186 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2188 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2189 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2190 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2194 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2195 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2196 "glCopyTexImage%dD(multisample FBO)", dimensions
);
2202 if (border
< 0 || border
> 1 ||
2203 ((ctx
->API
!= API_OPENGL_COMPAT
||
2204 target
== GL_TEXTURE_RECTANGLE_NV
||
2205 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
2206 _mesa_error(ctx
, GL_INVALID_VALUE
,
2207 "glCopyTexImage%dD(border=%d)", dimensions
, border
);
2211 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2214 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2215 switch (internalFormat
) {
2220 case GL_LUMINANCE_ALPHA
:
2223 _mesa_error(ctx
, GL_INVALID_ENUM
,
2224 "glCopyTexImage%dD(internalFormat=%s)", dimensions
,
2225 _mesa_enum_to_string(internalFormat
));
2230 * Section 8.6 (Alternate Texture Image Specification Commands) of the
2231 * OpenGL 4.5 (Compatibility Profile) spec says:
2233 * "Parameters level, internalformat, and border are specified using
2234 * the same values, with the same meanings, as the corresponding
2235 * arguments of TexImage2D, except that internalformat may not be
2236 * specified as 1, 2, 3, or 4."
2238 if (internalFormat
>= 1 && internalFormat
<= 4) {
2239 _mesa_error(ctx
, GL_INVALID_ENUM
,
2240 "glCopyTexImage%dD(internalFormat=%d)", dimensions
,
2246 baseFormat
= _mesa_base_tex_format(ctx
, internalFormat
);
2247 if (baseFormat
< 0) {
2248 _mesa_error(ctx
, GL_INVALID_ENUM
,
2249 "glCopyTexImage%dD(internalFormat=%s)", dimensions
,
2250 _mesa_enum_to_string(internalFormat
));
2254 rb
= _mesa_get_read_renderbuffer_for_format(ctx
, internalFormat
);
2256 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2257 "glCopyTexImage%dD(read buffer)", dimensions
);
2261 rb_internal_format
= rb
->InternalFormat
;
2262 rb_base_format
= _mesa_base_tex_format(ctx
, rb
->InternalFormat
);
2263 if (_mesa_is_color_format(internalFormat
)) {
2264 if (rb_base_format
< 0) {
2265 _mesa_error(ctx
, GL_INVALID_VALUE
,
2266 "glCopyTexImage%dD(internalFormat=%s)", dimensions
,
2267 _mesa_enum_to_string(internalFormat
));
2272 if (_mesa_is_gles(ctx
)) {
2274 if (_mesa_base_format_component_count(baseFormat
) >
2275 _mesa_base_format_component_count(rb_base_format
)) {
2278 if (baseFormat
== GL_DEPTH_COMPONENT
||
2279 baseFormat
== GL_DEPTH_STENCIL
||
2280 baseFormat
== GL_STENCIL_INDEX
||
2281 rb_base_format
== GL_DEPTH_COMPONENT
||
2282 rb_base_format
== GL_DEPTH_STENCIL
||
2283 rb_base_format
== GL_STENCIL_INDEX
||
2284 ((baseFormat
== GL_LUMINANCE_ALPHA
||
2285 baseFormat
== GL_ALPHA
) &&
2286 rb_base_format
!= GL_RGBA
) ||
2287 internalFormat
== GL_RGB9_E5
) {
2290 if (internalFormat
== GL_RGB9_E5
) {
2294 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2295 "glCopyTexImage%dD(internalFormat=%s)", dimensions
,
2296 _mesa_enum_to_string(internalFormat
));
2301 if (_mesa_is_gles3(ctx
)) {
2302 bool rb_is_srgb
= false;
2303 bool dst_is_srgb
= false;
2305 if (ctx
->Extensions
.EXT_framebuffer_sRGB
&&
2306 _mesa_get_format_color_encoding(rb
->Format
) == GL_SRGB
) {
2310 if (_mesa_get_linear_internalformat(internalFormat
) != internalFormat
) {
2314 if (rb_is_srgb
!= dst_is_srgb
) {
2315 /* Page 137 (page 149 of the PDF) in section 3.8.5 of the
2316 * OpenGLES 3.0.0 spec says:
2318 * "The error INVALID_OPERATION is also generated if the
2319 * value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING for the
2320 * framebuffer attachment corresponding to the read buffer
2321 * is LINEAR (see section 6.1.13) and internalformat is
2322 * one of the sRGB formats described in section 3.8.16, or
2323 * if the value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING is
2324 * SRGB and internalformat is not one of the sRGB formats."
2326 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2327 "glCopyTexImage%dD(srgb usage mismatch)", dimensions
);
2331 /* Page 139, Table 3.15 of OpenGL ES 3.0 spec does not define ReadPixels
2332 * types for SNORM formats. Also, conversion to SNORM formats is not
2333 * allowed by Table 3.2 on Page 110.
2335 if (_mesa_is_enum_format_snorm(internalFormat
)) {
2336 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2337 "glCopyTexImage%dD(internalFormat=%s)", dimensions
,
2338 _mesa_enum_to_string(internalFormat
));
2343 if (!_mesa_source_buffer_exists(ctx
, baseFormat
)) {
2344 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2345 "glCopyTexImage%dD(missing readbuffer)", dimensions
);
2349 /* From the EXT_texture_integer spec:
2351 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2352 * if the texture internalformat is an integer format and the read color
2353 * buffer is not an integer format, or if the internalformat is not an
2354 * integer format and the read color buffer is an integer format."
2356 if (_mesa_is_color_format(internalFormat
)) {
2357 bool is_int
= _mesa_is_enum_format_integer(internalFormat
);
2358 bool is_rbint
= _mesa_is_enum_format_integer(rb_internal_format
);
2359 bool is_unorm
= _mesa_is_enum_format_unorm(internalFormat
);
2360 bool is_rbunorm
= _mesa_is_enum_format_unorm(rb_internal_format
);
2361 if (is_int
|| is_rbint
) {
2362 if (is_int
!= is_rbint
) {
2363 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2364 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2366 } else if (_mesa_is_gles(ctx
) &&
2367 _mesa_is_enum_format_unsigned_int(internalFormat
) !=
2368 _mesa_is_enum_format_unsigned_int(rb_internal_format
)) {
2369 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2370 "glCopyTexImage%dD(signed vs unsigned integer)", dimensions
);
2375 /* From page 138 of OpenGL ES 3.0 spec:
2376 * "The error INVALID_OPERATION is generated if floating-point RGBA
2377 * data is required; if signed integer RGBA data is required and the
2378 * format of the current color buffer is not signed integer; if
2379 * unsigned integer RGBA data is required and the format of the
2380 * current color buffer is not unsigned integer; or if fixed-point
2381 * RGBA data is required and the format of the current color buffer
2382 * is not fixed-point.
2384 if (_mesa_is_gles(ctx
) && is_unorm
!= is_rbunorm
)
2385 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2386 "glCopyTexImage%dD(unorm vs non-unorm)", dimensions
);
2389 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
2391 if (!_mesa_target_can_be_compressed(ctx
, target
, internalFormat
, &err
)) {
2392 _mesa_error(ctx
, err
,
2393 "glCopyTexImage%dD(target can't be compressed)", dimensions
);
2396 if (_mesa_format_no_online_compression(ctx
, internalFormat
)) {
2397 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2398 "glCopyTexImage%dD(no compression for format)", dimensions
);
2402 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2403 "glCopyTexImage%dD(border!=0)", dimensions
);
2408 if (!mutable_tex_object(ctx
, target
)) {
2409 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2410 "glCopyTexImage%dD(immutable texture)", dimensions
);
2414 /* if we get here, the parameters are OK */
2420 * Test glCopyTexSubImage[12]D() parameters for errors.
2421 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2424 copytexsubimage_error_check(struct gl_context
*ctx
, GLuint dimensions
,
2425 const struct gl_texture_object
*texObj
,
2426 GLenum target
, GLint level
,
2427 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2428 GLint width
, GLint height
, const char *caller
)
2430 struct gl_texture_image
*texImage
;
2432 /* Check that the source buffer is complete */
2433 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2434 if (ctx
->ReadBuffer
->_Status
== 0) {
2435 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2437 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2438 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2439 "%s(invalid readbuffer)", caller
);
2443 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2444 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2445 "%s(multisample FBO)", caller
);
2451 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2452 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level=%d)", caller
, level
);
2456 /* Get dest image pointers */
2458 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s()", caller
);
2462 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
2464 /* destination image does not exist */
2465 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2466 "%s(invalid texture image)", caller
);
2470 if (error_check_subtexture_dimensions(ctx
, dimensions
, texImage
,
2471 xoffset
, yoffset
, zoffset
,
2472 width
, height
, 1, caller
)) {
2476 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
2477 if (_mesa_format_no_online_compression(ctx
, texImage
->InternalFormat
)) {
2478 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2479 "%s(no compression for format)", caller
);
2484 if (texImage
->InternalFormat
== GL_YCBCR_MESA
) {
2485 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s()", caller
);
2489 if (!_mesa_source_buffer_exists(ctx
, texImage
->_BaseFormat
)) {
2490 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2491 "%s(missing readbuffer, format=%s)", caller
,
2492 _mesa_enum_to_string(texImage
->_BaseFormat
));
2496 /* From the EXT_texture_integer spec:
2498 * "INVALID_OPERATION is generated by CopyTexImage* and
2499 * CopyTexSubImage* if the texture internalformat is an integer format
2500 * and the read color buffer is not an integer format, or if the
2501 * internalformat is not an integer format and the read color buffer
2502 * is an integer format."
2504 if (_mesa_is_color_format(texImage
->InternalFormat
)) {
2505 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2507 if (_mesa_is_format_integer_color(rb
->Format
) !=
2508 _mesa_is_format_integer_color(texImage
->TexFormat
)) {
2509 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2510 "%s(integer vs non-integer)", caller
);
2515 /* if we get here, the parameters are OK */
2520 /** Callback info for walking over FBO hash table */
2523 struct gl_context
*ctx
;
2524 struct gl_texture_object
*texObj
;
2530 * Check render to texture callback. Called from _mesa_HashWalk().
2533 check_rtt_cb(GLuint key
, void *data
, void *userData
)
2535 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2536 const struct cb_info
*info
= (struct cb_info
*) userData
;
2537 struct gl_context
*ctx
= info
->ctx
;
2538 const struct gl_texture_object
*texObj
= info
->texObj
;
2539 const GLuint level
= info
->level
, face
= info
->face
;
2541 /* If this is a user-created FBO */
2542 if (_mesa_is_user_fbo(fb
)) {
2544 /* check if any of the FBO's attachments point to 'texObj' */
2545 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2546 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2547 if (att
->Type
== GL_TEXTURE
&&
2548 att
->Texture
== texObj
&&
2549 att
->TextureLevel
== level
&&
2550 att
->CubeMapFace
== face
) {
2551 _mesa_update_texture_renderbuffer(ctx
, ctx
->DrawBuffer
, att
);
2552 assert(att
->Renderbuffer
->TexImage
);
2553 /* Mark fb status as indeterminate to force re-validation */
2562 * When a texture image is specified we have to check if it's bound to
2563 * any framebuffer objects (render to texture) in order to detect changes
2564 * in size or format since that effects FBO completeness.
2565 * Any FBOs rendering into the texture must be re-validated.
2568 _mesa_update_fbo_texture(struct gl_context
*ctx
,
2569 struct gl_texture_object
*texObj
,
2570 GLuint face
, GLuint level
)
2572 /* Only check this texture if it's been marked as RenderToTexture */
2573 if (texObj
->_RenderToTexture
) {
2574 struct cb_info info
;
2576 info
.texObj
= texObj
;
2579 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, check_rtt_cb
, &info
);
2585 * If the texture object's GenerateMipmap flag is set and we've
2586 * changed the texture base level image, regenerate the rest of the
2587 * mipmap levels now.
2590 check_gen_mipmap(struct gl_context
*ctx
, GLenum target
,
2591 struct gl_texture_object
*texObj
, GLint level
)
2593 if (texObj
->GenerateMipmap
&&
2594 level
== texObj
->BaseLevel
&&
2595 level
< texObj
->MaxLevel
) {
2596 assert(ctx
->Driver
.GenerateMipmap
);
2597 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2602 /** Debug helper: override the user-requested internal format */
2604 override_internal_format(GLenum internalFormat
, GLint width
, GLint height
)
2607 if (internalFormat
== GL_RGBA16F_ARB
||
2608 internalFormat
== GL_RGBA32F_ARB
) {
2609 printf("Convert rgba float tex to int %d x %d\n", width
, height
);
2612 else if (internalFormat
== GL_RGB16F_ARB
||
2613 internalFormat
== GL_RGB32F_ARB
) {
2614 printf("Convert rgb float tex to int %d x %d\n", width
, height
);
2617 else if (internalFormat
== GL_LUMINANCE_ALPHA16F_ARB
||
2618 internalFormat
== GL_LUMINANCE_ALPHA32F_ARB
) {
2619 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2620 return GL_LUMINANCE_ALPHA
;
2622 else if (internalFormat
== GL_LUMINANCE16F_ARB
||
2623 internalFormat
== GL_LUMINANCE32F_ARB
) {
2624 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2625 return GL_LUMINANCE
;
2627 else if (internalFormat
== GL_ALPHA16F_ARB
||
2628 internalFormat
== GL_ALPHA32F_ARB
) {
2629 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2633 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2634 internalFormat = GL_RGBA;
2638 return internalFormat
;
2641 return internalFormat
;
2647 * Choose the actual hardware format for a texture image.
2648 * Try to use the same format as the previous image level when possible.
2649 * Otherwise, ask the driver for the best format.
2650 * It's important to try to choose a consistant format for all levels
2651 * for efficient texture memory layout/allocation. In particular, this
2652 * comes up during automatic mipmap generation.
2655 _mesa_choose_texture_format(struct gl_context
*ctx
,
2656 struct gl_texture_object
*texObj
,
2657 GLenum target
, GLint level
,
2658 GLenum internalFormat
, GLenum format
, GLenum type
)
2662 /* see if we've already chosen a format for the previous level */
2664 struct gl_texture_image
*prevImage
=
2665 _mesa_select_tex_image(texObj
, target
, level
- 1);
2666 /* See if the prev level is defined and has an internal format which
2667 * matches the new internal format.
2670 prevImage
->Width
> 0 &&
2671 prevImage
->InternalFormat
== internalFormat
) {
2672 /* use the same format */
2673 assert(prevImage
->TexFormat
!= MESA_FORMAT_NONE
);
2674 return prevImage
->TexFormat
;
2678 /* If the application requested compression to an S3TC format but we don't
2679 * have the DXTn library, force a generic compressed format instead.
2681 if (internalFormat
!= format
&& format
!= GL_NONE
) {
2682 const GLenum before
= internalFormat
;
2684 switch (internalFormat
) {
2685 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
2686 if (!ctx
->Mesa_DXTn
)
2687 internalFormat
= GL_COMPRESSED_RGB
;
2689 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
2690 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
2691 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
2692 if (!ctx
->Mesa_DXTn
)
2693 internalFormat
= GL_COMPRESSED_RGBA
;
2699 if (before
!= internalFormat
) {
2701 "DXT compression requested (%s), "
2702 "but libtxc_dxtn library not installed. Using %s "
2704 _mesa_enum_to_string(before
),
2705 _mesa_enum_to_string(internalFormat
));
2709 /* choose format from scratch */
2710 f
= ctx
->Driver
.ChooseTextureFormat(ctx
, target
, internalFormat
,
2712 assert(f
!= MESA_FORMAT_NONE
);
2718 * Adjust pixel unpack params and image dimensions to strip off the
2719 * one-pixel texture border.
2721 * Gallium and intel don't support texture borders. They've seldem been used
2722 * and seldom been implemented correctly anyway.
2724 * \param unpackNew returns the new pixel unpack parameters
2727 strip_texture_border(GLenum target
,
2728 GLint
*width
, GLint
*height
, GLint
*depth
,
2729 const struct gl_pixelstore_attrib
*unpack
,
2730 struct gl_pixelstore_attrib
*unpackNew
)
2736 *unpackNew
= *unpack
;
2738 if (unpackNew
->RowLength
== 0)
2739 unpackNew
->RowLength
= *width
;
2741 if (unpackNew
->ImageHeight
== 0)
2742 unpackNew
->ImageHeight
= *height
;
2744 assert(*width
>= 3);
2745 unpackNew
->SkipPixels
++; /* skip the border */
2746 *width
= *width
- 2; /* reduce the width by two border pixels */
2748 /* The min height of a texture with a border is 3 */
2749 if (*height
>= 3 && target
!= GL_TEXTURE_1D_ARRAY
) {
2750 unpackNew
->SkipRows
++; /* skip the border */
2751 *height
= *height
- 2; /* reduce the height by two border pixels */
2755 target
!= GL_TEXTURE_2D_ARRAY
&&
2756 target
!= GL_TEXTURE_CUBE_MAP_ARRAY
) {
2757 unpackNew
->SkipImages
++; /* skip the border */
2758 *depth
= *depth
- 2; /* reduce the depth by two border pixels */
2764 * Common code to implement all the glTexImage1D/2D/3D functions
2765 * as well as glCompressedTexImage1D/2D/3D.
2766 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls.
2767 * \param format the user's image format (only used if !compressed)
2768 * \param type the user's image type (only used if !compressed)
2769 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls.
2772 teximage(struct gl_context
*ctx
, GLboolean compressed
, GLuint dims
,
2773 GLenum target
, GLint level
, GLint internalFormat
,
2774 GLsizei width
, GLsizei height
, GLsizei depth
,
2775 GLint border
, GLenum format
, GLenum type
,
2776 GLsizei imageSize
, const GLvoid
*pixels
)
2778 const char *func
= compressed
? "glCompressedTexImage" : "glTexImage";
2779 struct gl_pixelstore_attrib unpack_no_border
;
2780 const struct gl_pixelstore_attrib
*unpack
= &ctx
->Unpack
;
2781 struct gl_texture_object
*texObj
;
2782 mesa_format texFormat
;
2783 GLboolean dimensionsOK
, sizeOK
;
2785 FLUSH_VERTICES(ctx
, 0);
2787 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
)) {
2790 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n",
2792 _mesa_enum_to_string(target
), level
,
2793 _mesa_enum_to_string(internalFormat
),
2794 width
, height
, depth
, border
, pixels
);
2797 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2799 _mesa_enum_to_string(target
), level
,
2800 _mesa_enum_to_string(internalFormat
),
2801 width
, height
, depth
, border
,
2802 _mesa_enum_to_string(format
),
2803 _mesa_enum_to_string(type
), pixels
);
2806 internalFormat
= override_internal_format(internalFormat
, width
, height
);
2808 /* target error checking */
2809 if (!legal_teximage_target(ctx
, dims
, target
)) {
2810 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s%uD(target=%s)",
2811 func
, dims
, _mesa_enum_to_string(target
));
2815 /* general error checking */
2817 if (compressed_texture_error_check(ctx
, dims
, target
, level
,
2819 width
, height
, depth
,
2820 border
, imageSize
, pixels
))
2824 if (texture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2825 format
, type
, width
, height
, depth
, border
,
2830 /* Here we convert a cpal compressed image into a regular glTexImage2D
2831 * call by decompressing the texture. If we really want to support cpal
2832 * textures in any driver this would have to be changed.
2834 if (ctx
->API
== API_OPENGLES
&& compressed
&& dims
== 2) {
2835 switch (internalFormat
) {
2836 case GL_PALETTE4_RGB8_OES
:
2837 case GL_PALETTE4_RGBA8_OES
:
2838 case GL_PALETTE4_R5_G6_B5_OES
:
2839 case GL_PALETTE4_RGBA4_OES
:
2840 case GL_PALETTE4_RGB5_A1_OES
:
2841 case GL_PALETTE8_RGB8_OES
:
2842 case GL_PALETTE8_RGBA8_OES
:
2843 case GL_PALETTE8_R5_G6_B5_OES
:
2844 case GL_PALETTE8_RGBA4_OES
:
2845 case GL_PALETTE8_RGB5_A1_OES
:
2846 _mesa_cpal_compressed_teximage2d(target
, level
, internalFormat
,
2847 width
, height
, imageSize
, pixels
);
2852 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2856 /* For glCompressedTexImage() the driver has no choice about the
2857 * texture format since we'll never transcode the user's compressed
2858 * image data. The internalFormat was error checked earlier.
2860 texFormat
= _mesa_glenum_to_compressed_format(internalFormat
);
2863 /* In case of HALF_FLOAT_OES or FLOAT_OES, find corresponding sized
2864 * internal floating point format for the given base format.
2866 if (_mesa_is_gles(ctx
) && format
== internalFormat
) {
2867 if (type
== GL_FLOAT
) {
2868 texObj
->_IsFloat
= GL_TRUE
;
2869 } else if (type
== GL_HALF_FLOAT_OES
|| type
== GL_HALF_FLOAT
) {
2870 texObj
->_IsHalfFloat
= GL_TRUE
;
2873 internalFormat
= adjust_for_oes_float_texture(format
, type
);
2876 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
2877 internalFormat
, format
, type
);
2880 assert(texFormat
!= MESA_FORMAT_NONE
);
2882 /* check that width, height, depth are legal for the mipmap level */
2883 dimensionsOK
= _mesa_legal_texture_dimensions(ctx
, target
, level
, width
,
2884 height
, depth
, border
);
2886 /* check that the texture won't take too much memory, etc */
2887 sizeOK
= ctx
->Driver
.TestProxyTexImage(ctx
, proxy_target(target
),
2889 width
, height
, depth
, border
);
2891 if (_mesa_is_proxy_texture(target
)) {
2892 /* Proxy texture: just clear or set state depending on error checking */
2893 struct gl_texture_image
*texImage
=
2894 get_proxy_tex_image(ctx
, target
, level
);
2897 return; /* GL_OUT_OF_MEMORY already recorded */
2899 if (dimensionsOK
&& sizeOK
) {
2900 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, depth
,
2901 border
, internalFormat
, texFormat
);
2904 clear_teximage_fields(texImage
);
2908 /* non-proxy target */
2909 const GLuint face
= _mesa_tex_target_to_face(target
);
2910 struct gl_texture_image
*texImage
;
2912 if (!dimensionsOK
) {
2913 _mesa_error(ctx
, GL_INVALID_VALUE
,
2914 "%s%uD(invalid width or height or depth)",
2920 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
2921 "%s%uD(image too large: %d x %d x %d, %s format)",
2922 func
, dims
, width
, height
, depth
,
2923 _mesa_enum_to_string(internalFormat
));
2927 /* Allow a hardware driver to just strip out the border, to provide
2928 * reliable but slightly incorrect hardware rendering instead of
2929 * rarely-tested software fallback rendering.
2931 if (border
&& ctx
->Const
.StripTextureBorder
) {
2932 strip_texture_border(target
, &width
, &height
, &depth
, unpack
,
2935 unpack
= &unpack_no_border
;
2938 if (ctx
->NewState
& _NEW_PIXEL
)
2939 _mesa_update_state(ctx
);
2941 _mesa_lock_texture(ctx
, texObj
);
2943 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
2946 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s%uD", func
, dims
);
2949 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
2951 _mesa_init_teximage_fields(ctx
, texImage
,
2952 width
, height
, depth
,
2953 border
, internalFormat
, texFormat
);
2955 /* Give the texture to the driver. <pixels> may be null. */
2956 if (width
> 0 && height
> 0 && depth
> 0) {
2958 ctx
->Driver
.CompressedTexImage(ctx
, dims
, texImage
,
2962 ctx
->Driver
.TexImage(ctx
, dims
, texImage
, format
,
2963 type
, pixels
, unpack
);
2967 check_gen_mipmap(ctx
, target
, texObj
, level
);
2969 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
2971 _mesa_dirty_texobj(ctx
, texObj
);
2974 _mesa_unlock_texture(ctx
, texObj
);
2981 * Called from the API. Note that width includes the border.
2984 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalFormat
,
2985 GLsizei width
, GLint border
, GLenum format
,
2986 GLenum type
, const GLvoid
*pixels
)
2988 GET_CURRENT_CONTEXT(ctx
);
2989 teximage(ctx
, GL_FALSE
, 1, target
, level
, internalFormat
, width
, 1, 1,
2990 border
, format
, type
, 0, pixels
);
2995 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalFormat
,
2996 GLsizei width
, GLsizei height
, GLint border
,
2997 GLenum format
, GLenum type
,
2998 const GLvoid
*pixels
)
3000 GET_CURRENT_CONTEXT(ctx
);
3001 teximage(ctx
, GL_FALSE
, 2, target
, level
, internalFormat
, width
, height
, 1,
3002 border
, format
, type
, 0, pixels
);
3007 * Called by the API or display list executor.
3008 * Note that width and height include the border.
3011 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalFormat
,
3012 GLsizei width
, GLsizei height
, GLsizei depth
,
3013 GLint border
, GLenum format
, GLenum type
,
3014 const GLvoid
*pixels
)
3016 GET_CURRENT_CONTEXT(ctx
);
3017 teximage(ctx
, GL_FALSE
, 3, target
, level
, internalFormat
,
3018 width
, height
, depth
,
3019 border
, format
, type
, 0, pixels
);
3024 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalFormat
,
3025 GLsizei width
, GLsizei height
, GLsizei depth
,
3026 GLint border
, GLenum format
, GLenum type
,
3027 const GLvoid
*pixels
)
3029 _mesa_TexImage3D(target
, level
, (GLint
) internalFormat
, width
, height
,
3030 depth
, border
, format
, type
, pixels
);
3035 _mesa_EGLImageTargetTexture2DOES (GLenum target
, GLeglImageOES image
)
3037 struct gl_texture_object
*texObj
;
3038 struct gl_texture_image
*texImage
;
3040 GET_CURRENT_CONTEXT(ctx
);
3041 FLUSH_VERTICES(ctx
, 0);
3045 valid_target
= ctx
->Extensions
.OES_EGL_image
;
3047 case GL_TEXTURE_EXTERNAL_OES
:
3049 _mesa_is_gles(ctx
) ? ctx
->Extensions
.OES_EGL_image_external
: false;
3052 valid_target
= false;
3056 if (!valid_target
) {
3057 _mesa_error(ctx
, GL_INVALID_ENUM
,
3058 "glEGLImageTargetTexture2D(target=%d)", target
);
3063 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3064 "glEGLImageTargetTexture2D(image=%p)", image
);
3068 if (ctx
->NewState
& _NEW_PIXEL
)
3069 _mesa_update_state(ctx
);
3071 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3075 _mesa_lock_texture(ctx
, texObj
);
3077 if (texObj
->Immutable
) {
3078 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3079 "glEGLImageTargetTexture2D(texture is immutable)");
3080 _mesa_unlock_texture(ctx
, texObj
);
3084 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
3086 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glEGLImageTargetTexture2D");
3088 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3090 ctx
->Driver
.EGLImageTargetTexture2D(ctx
, target
,
3091 texObj
, texImage
, image
);
3093 _mesa_dirty_texobj(ctx
, texObj
);
3095 _mesa_unlock_texture(ctx
, texObj
);
3100 * Helper that implements the glTexSubImage1/2/3D()
3101 * and glTextureSubImage1/2/3D() functions.
3104 _mesa_texture_sub_image(struct gl_context
*ctx
, GLuint dims
,
3105 struct gl_texture_object
*texObj
,
3106 struct gl_texture_image
*texImage
,
3107 GLenum target
, GLint level
,
3108 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3109 GLsizei width
, GLsizei height
, GLsizei depth
,
3110 GLenum format
, GLenum type
, const GLvoid
*pixels
,
3113 FLUSH_VERTICES(ctx
, 0);
3115 if (ctx
->NewState
& _NEW_PIXEL
)
3116 _mesa_update_state(ctx
);
3118 _mesa_lock_texture(ctx
, texObj
);
3120 if (width
> 0 && height
> 0 && depth
> 0) {
3121 /* If we have a border, offset=-1 is legal. Bias by border width. */
3124 if (target
!= GL_TEXTURE_2D_ARRAY
)
3125 zoffset
+= texImage
->Border
;
3128 if (target
!= GL_TEXTURE_1D_ARRAY
)
3129 yoffset
+= texImage
->Border
;
3132 xoffset
+= texImage
->Border
;
3135 ctx
->Driver
.TexSubImage(ctx
, dims
, texImage
,
3136 xoffset
, yoffset
, zoffset
,
3137 width
, height
, depth
,
3138 format
, type
, pixels
, &ctx
->Unpack
);
3140 check_gen_mipmap(ctx
, target
, texObj
, level
);
3142 /* NOTE: Don't signal _NEW_TEXTURE since we've only changed
3143 * the texel data, not the texture format, size, etc.
3147 _mesa_unlock_texture(ctx
, texObj
);
3151 * Implement all the glTexSubImage1/2/3D() functions.
3152 * Must split this out this way because of GL_TEXTURE_CUBE_MAP.
3155 texsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3156 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3157 GLsizei width
, GLsizei height
, GLsizei depth
,
3158 GLenum format
, GLenum type
, const GLvoid
*pixels
,
3159 const char *callerName
)
3161 struct gl_texture_object
*texObj
;
3162 struct gl_texture_image
*texImage
;
3164 /* check target (proxies not allowed) */
3165 if (!legal_texsubimage_target(ctx
, dims
, target
, false)) {
3166 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
3167 dims
, _mesa_enum_to_string(target
));
3171 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3175 if (texsubimage_error_check(ctx
, dims
, texObj
, target
, level
,
3176 xoffset
, yoffset
, zoffset
,
3177 width
, height
, depth
, format
, type
,
3178 pixels
, false, callerName
)) {
3179 return; /* error was detected */
3182 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
3183 /* texsubimage_error_check ensures that texImage is not NULL */
3185 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3186 _mesa_debug(ctx
, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
3188 _mesa_enum_to_string(target
), level
,
3189 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3190 _mesa_enum_to_string(format
),
3191 _mesa_enum_to_string(type
), pixels
);
3193 _mesa_texture_sub_image(ctx
, dims
, texObj
, texImage
, target
, level
,
3194 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3195 format
, type
, pixels
, false);
3200 * Implement all the glTextureSubImage1/2/3D() functions.
3201 * Must split this out this way because of GL_TEXTURE_CUBE_MAP.
3204 texturesubimage(struct gl_context
*ctx
, GLuint dims
,
3205 GLuint texture
, GLint level
,
3206 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3207 GLsizei width
, GLsizei height
, GLsizei depth
,
3208 GLenum format
, GLenum type
, const GLvoid
*pixels
,
3209 const char *callerName
)
3211 struct gl_texture_object
*texObj
;
3212 struct gl_texture_image
*texImage
;
3215 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3217 "glTextureSubImage%uD %d %d %d %d %d %d %d %d %s %s %p\n",
3218 dims
, texture
, level
,
3219 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3220 _mesa_enum_to_string(format
),
3221 _mesa_enum_to_string(type
), pixels
);
3223 /* Get the texture object by Name. */
3224 texObj
= _mesa_lookup_texture(ctx
, texture
);
3226 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTextureSubImage%uD(texture)",
3231 /* check target (proxies not allowed) */
3232 if (!legal_texsubimage_target(ctx
, dims
, texObj
->Target
, true)) {
3233 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target=%s)",
3234 callerName
, _mesa_enum_to_string(texObj
->Target
));
3238 if (texsubimage_error_check(ctx
, dims
, texObj
, texObj
->Target
, level
,
3239 xoffset
, yoffset
, zoffset
,
3240 width
, height
, depth
, format
, type
,
3241 pixels
, true, callerName
)) {
3242 return; /* error was detected */
3246 /* Must handle special case GL_TEXTURE_CUBE_MAP. */
3247 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3251 * What do we do if the user created a texture with the following code
3252 * and then called this function with its handle?
3255 * glCreateTextures(GL_TEXTURE_CUBE_MAP, 1, &tex);
3256 * glBindTexture(GL_TEXTURE_CUBE_MAP, tex);
3257 * glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, ...);
3258 * glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 0, ...);
3259 * glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, 0, ...);
3260 * // Note: GL_TEXTURE_CUBE_MAP_NEGATIVE_Y not set, or given the
3261 * // wrong format, or given the wrong size, etc.
3262 * glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 0, ...);
3263 * glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, ...);
3265 * A bug has been filed against the spec for this case. In the
3266 * meantime, we will check for cube completeness.
3268 * According to Section 8.17 Texture Completeness in the OpenGL 4.5
3269 * Core Profile spec (30.10.2014):
3270 * "[A] cube map texture is cube complete if the
3271 * following conditions all hold true: The [base level] texture
3272 * images of each of the six cube map faces have identical, positive,
3273 * and square dimensions. The [base level] images were each specified
3274 * with the same internal format."
3276 * It seems reasonable to check for cube completeness of an arbitrary
3277 * level here so that the image data has a consistent format and size.
3279 if (!_mesa_cube_level_complete(texObj
, level
)) {
3280 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3281 "glTextureSubImage%uD(cube map incomplete)",
3286 imageStride
= _mesa_image_image_stride(&ctx
->Unpack
, width
, height
,
3288 /* Copy in each face. */
3289 for (i
= zoffset
; i
< zoffset
+ depth
; ++i
) {
3290 texImage
= texObj
->Image
[i
][level
];
3293 _mesa_texture_sub_image(ctx
, 3, texObj
, texImage
, texObj
->Target
,
3294 level
, xoffset
, yoffset
, 0,
3295 width
, height
, 1, format
,
3296 type
, pixels
, true);
3297 pixels
= (GLubyte
*) pixels
+ imageStride
;
3301 texImage
= _mesa_select_tex_image(texObj
, texObj
->Target
, level
);
3304 _mesa_texture_sub_image(ctx
, dims
, texObj
, texImage
, texObj
->Target
,
3305 level
, xoffset
, yoffset
, zoffset
,
3306 width
, height
, depth
, format
,
3307 type
, pixels
, true);
3313 _mesa_TexSubImage1D( GLenum target
, GLint level
,
3314 GLint xoffset
, GLsizei width
,
3315 GLenum format
, GLenum type
,
3316 const GLvoid
*pixels
)
3318 GET_CURRENT_CONTEXT(ctx
);
3319 texsubimage(ctx
, 1, target
, level
,
3322 format
, type
, pixels
, "glTexSubImage1D");
3327 _mesa_TexSubImage2D( GLenum target
, GLint level
,
3328 GLint xoffset
, GLint yoffset
,
3329 GLsizei width
, GLsizei height
,
3330 GLenum format
, GLenum type
,
3331 const GLvoid
*pixels
)
3333 GET_CURRENT_CONTEXT(ctx
);
3334 texsubimage(ctx
, 2, target
, level
,
3335 xoffset
, yoffset
, 0,
3337 format
, type
, pixels
, "glTexSubImage2D");
3343 _mesa_TexSubImage3D( GLenum target
, GLint level
,
3344 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3345 GLsizei width
, GLsizei height
, GLsizei depth
,
3346 GLenum format
, GLenum type
,
3347 const GLvoid
*pixels
)
3349 GET_CURRENT_CONTEXT(ctx
);
3350 texsubimage(ctx
, 3, target
, level
,
3351 xoffset
, yoffset
, zoffset
,
3352 width
, height
, depth
,
3353 format
, type
, pixels
, "glTexSubImage3D");
3357 _mesa_TextureSubImage1D(GLuint texture
, GLint level
,
3358 GLint xoffset
, GLsizei width
,
3359 GLenum format
, GLenum type
,
3360 const GLvoid
*pixels
)
3362 GET_CURRENT_CONTEXT(ctx
);
3363 texturesubimage(ctx
, 1, texture
, level
,
3366 format
, type
, pixels
, "glTextureSubImage1D");
3371 _mesa_TextureSubImage2D(GLuint texture
, GLint level
,
3372 GLint xoffset
, GLint yoffset
,
3373 GLsizei width
, GLsizei height
,
3374 GLenum format
, GLenum type
,
3375 const GLvoid
*pixels
)
3377 GET_CURRENT_CONTEXT(ctx
);
3378 texturesubimage(ctx
, 2, texture
, level
,
3379 xoffset
, yoffset
, 0,
3381 format
, type
, pixels
, "glTextureSubImage2D");
3386 _mesa_TextureSubImage3D(GLuint texture
, GLint level
,
3387 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3388 GLsizei width
, GLsizei height
, GLsizei depth
,
3389 GLenum format
, GLenum type
,
3390 const GLvoid
*pixels
)
3392 GET_CURRENT_CONTEXT(ctx
);
3393 texturesubimage(ctx
, 3, texture
, level
,
3394 xoffset
, yoffset
, zoffset
,
3395 width
, height
, depth
,
3396 format
, type
, pixels
, "glTextureSubImage3D");
3401 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3402 * from. This depends on whether the texture contains color or depth values.
3404 static struct gl_renderbuffer
*
3405 get_copy_tex_image_source(struct gl_context
*ctx
, mesa_format texFormat
)
3407 if (_mesa_get_format_bits(texFormat
, GL_DEPTH_BITS
) > 0) {
3408 /* reading from depth/stencil buffer */
3409 return ctx
->ReadBuffer
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
3412 /* copying from color buffer */
3413 return ctx
->ReadBuffer
->_ColorReadBuffer
;
3418 copytexsubimage_by_slice(struct gl_context
*ctx
,
3419 struct gl_texture_image
*texImage
,
3421 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3422 struct gl_renderbuffer
*rb
,
3424 GLsizei width
, GLsizei height
)
3426 if (texImage
->TexObject
->Target
== GL_TEXTURE_1D_ARRAY
) {
3429 /* For 1D arrays, we copy each scanline of the source rectangle into the
3432 assert(zoffset
== 0);
3434 for (slice
= 0; slice
< height
; slice
++) {
3435 assert(yoffset
+ slice
< texImage
->Height
);
3436 ctx
->Driver
.CopyTexSubImage(ctx
, 2, texImage
,
3437 xoffset
, 0, yoffset
+ slice
,
3438 rb
, x
, y
+ slice
, width
, 1);
3441 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
,
3442 xoffset
, yoffset
, zoffset
,
3443 rb
, x
, y
, width
, height
);
3448 formats_differ_in_component_sizes(mesa_format f1
, mesa_format f2
)
3450 GLint f1_r_bits
= _mesa_get_format_bits(f1
, GL_RED_BITS
);
3451 GLint f1_g_bits
= _mesa_get_format_bits(f1
, GL_GREEN_BITS
);
3452 GLint f1_b_bits
= _mesa_get_format_bits(f1
, GL_BLUE_BITS
);
3453 GLint f1_a_bits
= _mesa_get_format_bits(f1
, GL_ALPHA_BITS
);
3455 GLint f2_r_bits
= _mesa_get_format_bits(f2
, GL_RED_BITS
);
3456 GLint f2_g_bits
= _mesa_get_format_bits(f2
, GL_GREEN_BITS
);
3457 GLint f2_b_bits
= _mesa_get_format_bits(f2
, GL_BLUE_BITS
);
3458 GLint f2_a_bits
= _mesa_get_format_bits(f2
, GL_ALPHA_BITS
);
3460 if ((f1_r_bits
&& f2_r_bits
&& f1_r_bits
!= f2_r_bits
)
3461 || (f1_g_bits
&& f2_g_bits
&& f1_g_bits
!= f2_g_bits
)
3462 || (f1_b_bits
&& f2_b_bits
&& f1_b_bits
!= f2_b_bits
)
3463 || (f1_a_bits
&& f2_a_bits
&& f1_a_bits
!= f2_a_bits
))
3470 * Implement the glCopyTexImage1/2D() functions.
3473 copyteximage(struct gl_context
*ctx
, GLuint dims
,
3474 GLenum target
, GLint level
, GLenum internalFormat
,
3475 GLint x
, GLint y
, GLsizei width
, GLsizei height
, GLint border
)
3477 struct gl_texture_object
*texObj
;
3478 struct gl_texture_image
*texImage
;
3479 const GLuint face
= _mesa_tex_target_to_face(target
);
3480 mesa_format texFormat
;
3481 struct gl_renderbuffer
*rb
;
3483 FLUSH_VERTICES(ctx
, 0);
3485 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3486 _mesa_debug(ctx
, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3488 _mesa_enum_to_string(target
), level
,
3489 _mesa_enum_to_string(internalFormat
),
3490 x
, y
, width
, height
, border
);
3492 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3493 _mesa_update_state(ctx
);
3495 if (copytexture_error_check(ctx
, dims
, target
, level
, internalFormat
,
3496 width
, height
, border
))
3499 if (!_mesa_legal_texture_dimensions(ctx
, target
, level
, width
, height
,
3501 _mesa_error(ctx
, GL_INVALID_VALUE
,
3502 "glCopyTexImage%uD(invalid width or height)", dims
);
3506 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3509 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3510 internalFormat
, GL_NONE
, GL_NONE
);
3512 rb
= _mesa_get_read_renderbuffer_for_format(ctx
, internalFormat
);
3514 if (_mesa_is_gles3(ctx
)) {
3515 if (_mesa_is_enum_format_unsized(internalFormat
)) {
3516 /* Conversion from GL_RGB10_A2 source buffer format is not allowed in
3517 * OpenGL ES 3.0. Khronos bug# 9807.
3519 if (rb
->InternalFormat
== GL_RGB10_A2
) {
3520 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3521 "glCopyTexImage%uD(Reading from GL_RGB10_A2 buffer"
3522 " and writing to unsized internal format)", dims
);
3526 /* From Page 139 of OpenGL ES 3.0 spec:
3527 * "If internalformat is sized, the internal format of the new texel
3528 * array is internalformat, and this is also the new texel array’s
3529 * effective internal format. If the component sizes of internalformat
3530 * do not exactly match the corresponding component sizes of the source
3531 * buffer’s effective internal format, described below, an
3532 * INVALID_OPERATION error is generated. If internalformat is unsized,
3533 * the internal format of the new texel array is the effective internal
3534 * format of the source buffer, and this is also the new texel array’s
3535 * effective internal format.
3537 else if (formats_differ_in_component_sizes (texFormat
, rb
->Format
)) {
3538 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3539 "glCopyTexImage%uD(componenet size changed in"
3540 " internal format)", dims
);
3545 assert(texFormat
!= MESA_FORMAT_NONE
);
3547 if (!ctx
->Driver
.TestProxyTexImage(ctx
, proxy_target(target
),
3549 width
, height
, 1, border
)) {
3550 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3551 "glCopyTexImage%uD(image too large)", dims
);
3555 if (border
&& ctx
->Const
.StripTextureBorder
) {
3557 width
-= border
* 2;
3560 height
-= border
* 2;
3565 _mesa_lock_texture(ctx
, texObj
);
3567 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3570 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
3573 GLint srcX
= x
, srcY
= y
, dstX
= 0, dstY
= 0, dstZ
= 0;
3575 /* Free old texture image */
3576 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3578 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, 1,
3579 border
, internalFormat
, texFormat
);
3581 if (width
&& height
) {
3582 /* Allocate texture memory (no pixel data yet) */
3583 ctx
->Driver
.AllocTextureImageBuffer(ctx
, texImage
);
3585 if (_mesa_clip_copytexsubimage(ctx
, &dstX
, &dstY
, &srcX
, &srcY
,
3587 struct gl_renderbuffer
*srcRb
=
3588 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3590 copytexsubimage_by_slice(ctx
, texImage
, dims
,
3592 srcRb
, srcX
, srcY
, width
, height
);
3595 check_gen_mipmap(ctx
, target
, texObj
, level
);
3598 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3600 _mesa_dirty_texobj(ctx
, texObj
);
3603 _mesa_unlock_texture(ctx
, texObj
);
3609 _mesa_CopyTexImage1D( GLenum target
, GLint level
,
3610 GLenum internalFormat
,
3612 GLsizei width
, GLint border
)
3614 GET_CURRENT_CONTEXT(ctx
);
3615 copyteximage(ctx
, 1, target
, level
, internalFormat
, x
, y
, width
, 1, border
);
3621 _mesa_CopyTexImage2D( GLenum target
, GLint level
, GLenum internalFormat
,
3622 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
3625 GET_CURRENT_CONTEXT(ctx
);
3626 copyteximage(ctx
, 2, target
, level
, internalFormat
,
3627 x
, y
, width
, height
, border
);
3631 * Implementation for glCopyTex(ture)SubImage1/2/3D() functions.
3634 _mesa_copy_texture_sub_image(struct gl_context
*ctx
, GLuint dims
,
3635 struct gl_texture_object
*texObj
,
3636 GLenum target
, GLint level
,
3637 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3639 GLsizei width
, GLsizei height
,
3642 struct gl_texture_image
*texImage
;
3644 FLUSH_VERTICES(ctx
, 0);
3646 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3647 _mesa_debug(ctx
, "%s %s %d %d %d %d %d %d %d %d\n", caller
,
3648 _mesa_enum_to_string(target
),
3649 level
, xoffset
, yoffset
, zoffset
, x
, y
, width
, height
);
3651 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3652 _mesa_update_state(ctx
);
3654 if (copytexsubimage_error_check(ctx
, dims
, texObj
, target
, level
,
3655 xoffset
, yoffset
, zoffset
,
3656 width
, height
, caller
)) {
3660 _mesa_lock_texture(ctx
, texObj
);
3662 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
3664 /* If we have a border, offset=-1 is legal. Bias by border width. */
3667 if (target
!= GL_TEXTURE_2D_ARRAY
)
3668 zoffset
+= texImage
->Border
;
3671 if (target
!= GL_TEXTURE_1D_ARRAY
)
3672 yoffset
+= texImage
->Border
;
3675 xoffset
+= texImage
->Border
;
3678 if (_mesa_clip_copytexsubimage(ctx
, &xoffset
, &yoffset
, &x
, &y
,
3680 struct gl_renderbuffer
*srcRb
=
3681 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3683 copytexsubimage_by_slice(ctx
, texImage
, dims
,
3684 xoffset
, yoffset
, zoffset
,
3685 srcRb
, x
, y
, width
, height
);
3687 check_gen_mipmap(ctx
, target
, texObj
, level
);
3689 /* NOTE: Don't signal _NEW_TEXTURE since we've only changed
3690 * the texel data, not the texture format, size, etc.
3694 _mesa_unlock_texture(ctx
, texObj
);
3698 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
,
3699 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
3701 struct gl_texture_object
* texObj
;
3702 const char *self
= "glCopyTexSubImage1D";
3703 GET_CURRENT_CONTEXT(ctx
);
3705 /* Check target (proxies not allowed). Target must be checked prior to
3706 * calling _mesa_get_current_tex_object.
3708 if (!legal_texsubimage_target(ctx
, 1, target
, false)) {
3709 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3710 _mesa_enum_to_string(target
));
3714 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3718 _mesa_copy_texture_sub_image(ctx
, 1, texObj
, target
, level
, xoffset
, 0, 0,
3719 x
, y
, width
, 1, self
);
3725 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
3726 GLint xoffset
, GLint yoffset
,
3727 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3729 struct gl_texture_object
* texObj
;
3730 const char *self
= "glCopyTexSubImage2D";
3731 GET_CURRENT_CONTEXT(ctx
);
3733 /* Check target (proxies not allowed). Target must be checked prior to
3734 * calling _mesa_get_current_tex_object.
3736 if (!legal_texsubimage_target(ctx
, 2, target
, false)) {
3737 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3738 _mesa_enum_to_string(target
));
3742 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3746 _mesa_copy_texture_sub_image(ctx
, 2, texObj
, target
, level
,
3747 xoffset
, yoffset
, 0,
3748 x
, y
, width
, height
, self
);
3754 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
3755 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3756 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3758 struct gl_texture_object
* texObj
;
3759 const char *self
= "glCopyTexSubImage3D";
3760 GET_CURRENT_CONTEXT(ctx
);
3762 /* Check target (proxies not allowed). Target must be checked prior to
3763 * calling _mesa_get_current_tex_object.
3765 if (!legal_texsubimage_target(ctx
, 3, target
, false)) {
3766 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3767 _mesa_enum_to_string(target
));
3771 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3775 _mesa_copy_texture_sub_image(ctx
, 3, texObj
, target
, level
,
3776 xoffset
, yoffset
, zoffset
,
3777 x
, y
, width
, height
, self
);
3781 _mesa_CopyTextureSubImage1D(GLuint texture
, GLint level
,
3782 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
3784 struct gl_texture_object
* texObj
;
3785 const char *self
= "glCopyTextureSubImage1D";
3786 GET_CURRENT_CONTEXT(ctx
);
3788 texObj
= _mesa_lookup_texture_err(ctx
, texture
, self
);
3792 /* Check target (proxies not allowed). */
3793 if (!legal_texsubimage_target(ctx
, 1, texObj
->Target
, true)) {
3794 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3795 _mesa_enum_to_string(texObj
->Target
));
3799 _mesa_copy_texture_sub_image(ctx
, 1, texObj
, texObj
->Target
, level
,
3800 xoffset
, 0, 0, x
, y
, width
, 1, self
);
3804 _mesa_CopyTextureSubImage2D(GLuint texture
, GLint level
,
3805 GLint xoffset
, GLint yoffset
,
3806 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3808 struct gl_texture_object
* texObj
;
3809 const char *self
= "glCopyTextureSubImage2D";
3810 GET_CURRENT_CONTEXT(ctx
);
3812 texObj
= _mesa_lookup_texture_err(ctx
, texture
, self
);
3816 /* Check target (proxies not allowed). */
3817 if (!legal_texsubimage_target(ctx
, 2, texObj
->Target
, true)) {
3818 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3819 _mesa_enum_to_string(texObj
->Target
));
3823 _mesa_copy_texture_sub_image(ctx
, 2, texObj
, texObj
->Target
, level
,
3824 xoffset
, yoffset
, 0,
3825 x
, y
, width
, height
, self
);
3831 _mesa_CopyTextureSubImage3D(GLuint texture
, GLint level
,
3832 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3833 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3835 struct gl_texture_object
* texObj
;
3836 const char *self
= "glCopyTextureSubImage3D";
3837 GET_CURRENT_CONTEXT(ctx
);
3839 texObj
= _mesa_lookup_texture_err(ctx
, texture
, self
);
3843 /* Check target (proxies not allowed). */
3844 if (!legal_texsubimage_target(ctx
, 3, texObj
->Target
, true)) {
3845 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3846 _mesa_enum_to_string(texObj
->Target
));
3850 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3851 /* Act like CopyTexSubImage2D */
3852 _mesa_copy_texture_sub_image(ctx
, 2, texObj
,
3853 GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ zoffset
,
3854 level
, xoffset
, yoffset
, 0,
3855 x
, y
, width
, height
, self
);
3858 _mesa_copy_texture_sub_image(ctx
, 3, texObj
, texObj
->Target
, level
,
3859 xoffset
, yoffset
, zoffset
,
3860 x
, y
, width
, height
, self
);
3864 check_clear_tex_image(struct gl_context
*ctx
,
3865 const char *function
,
3866 struct gl_texture_image
*texImage
,
3867 GLenum format
, GLenum type
,
3869 GLubyte
*clearValue
)
3871 struct gl_texture_object
*texObj
= texImage
->TexObject
;
3872 static const GLubyte zeroData
[MAX_PIXEL_BYTES
];
3873 GLenum internalFormat
= texImage
->InternalFormat
;
3876 if (texObj
->Target
== GL_TEXTURE_BUFFER
) {
3877 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3878 "%s(buffer texture)", function
);
3882 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
3883 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3884 "%s(compressed texture)", function
);
3888 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
3889 if (err
!= GL_NO_ERROR
) {
3890 _mesa_error(ctx
, err
,
3891 "%s(incompatible format = %s, type = %s)",
3893 _mesa_enum_to_string(format
),
3894 _mesa_enum_to_string(type
));
3898 /* make sure internal format and format basically agree */
3899 if (!texture_formats_agree(internalFormat
, format
)) {
3900 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3901 "%s(incompatible internalFormat = %s, format = %s)",
3903 _mesa_enum_to_string(internalFormat
),
3904 _mesa_enum_to_string(format
));
3908 if (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) {
3909 /* both source and dest must be integer-valued, or neither */
3910 if (_mesa_is_format_integer_color(texImage
->TexFormat
) !=
3911 _mesa_is_enum_format_integer(format
)) {
3912 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3913 "%s(integer/non-integer format mismatch)",
3919 if (!_mesa_texstore(ctx
,
3921 texImage
->_BaseFormat
,
3922 texImage
->TexFormat
,
3923 0, /* dstRowStride */
3925 1, 1, 1, /* srcWidth/Height/Depth */
3927 data
? data
: zeroData
,
3928 &ctx
->DefaultPacking
)) {
3929 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid format)", function
);
3936 static struct gl_texture_object
*
3937 get_tex_obj_for_clear(struct gl_context
*ctx
,
3938 const char *function
,
3941 struct gl_texture_object
*texObj
;
3944 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(zero texture)", function
);
3948 texObj
= _mesa_lookup_texture(ctx
, texture
);
3950 if (texObj
== NULL
) {
3951 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(non-gen name)", function
);
3955 if (texObj
->Target
== 0) {
3956 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(unbound tex)", function
);
3964 get_tex_images_for_clear(struct gl_context
*ctx
,
3965 const char *function
,
3966 struct gl_texture_object
*texObj
,
3968 struct gl_texture_image
**texImages
)
3973 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
3974 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid level)", function
);
3978 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3979 for (i
= 0; i
< MAX_FACES
; i
++) {
3980 target
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ i
;
3982 texImages
[i
] = _mesa_select_tex_image(texObj
, target
, level
);
3983 if (texImages
[i
] == NULL
) {
3984 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3985 "%s(invalid level)", function
);
3993 texImages
[0] = _mesa_select_tex_image(texObj
, texObj
->Target
, level
);
3995 if (texImages
[0] == NULL
) {
3996 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid level)", function
);
4004 _mesa_ClearTexSubImage( GLuint texture
, GLint level
,
4005 GLint xoffset
, GLint yoffset
, GLint zoffset
,
4006 GLsizei width
, GLsizei height
, GLsizei depth
,
4007 GLenum format
, GLenum type
, const void *data
)
4009 GET_CURRENT_CONTEXT(ctx
);
4010 struct gl_texture_object
*texObj
;
4011 struct gl_texture_image
*texImages
[MAX_FACES
];
4012 GLubyte clearValue
[MAX_FACES
][MAX_PIXEL_BYTES
];
4014 int minDepth
, maxDepth
;
4016 texObj
= get_tex_obj_for_clear(ctx
, "glClearTexSubImage", texture
);
4021 _mesa_lock_texture(ctx
, texObj
);
4023 numImages
= get_tex_images_for_clear(ctx
, "glClearTexSubImage",
4024 texObj
, level
, texImages
);
4028 if (numImages
== 1) {
4029 minDepth
= -(int) texImages
[0]->Border
;
4030 maxDepth
= texImages
[0]->Depth
;
4033 maxDepth
= numImages
;
4036 if (xoffset
< -(GLint
) texImages
[0]->Border
||
4037 yoffset
< -(GLint
) texImages
[0]->Border
||
4038 zoffset
< minDepth
||
4042 xoffset
+ width
> texImages
[0]->Width
||
4043 yoffset
+ height
> texImages
[0]->Height
||
4044 zoffset
+ depth
> maxDepth
) {
4045 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4046 "glClearSubTexImage(invalid dimensions)");
4050 if (numImages
== 1) {
4051 if (check_clear_tex_image(ctx
, "glClearTexSubImage",
4053 format
, type
, data
, clearValue
[0])) {
4054 ctx
->Driver
.ClearTexSubImage(ctx
,
4056 xoffset
, yoffset
, zoffset
,
4057 width
, height
, depth
,
4058 data
? clearValue
[0] : NULL
);
4061 for (i
= zoffset
; i
< zoffset
+ depth
; i
++) {
4062 if (!check_clear_tex_image(ctx
, "glClearTexSubImage",
4064 format
, type
, data
, clearValue
[i
]))
4067 for (i
= zoffset
; i
< zoffset
+ depth
; i
++) {
4068 ctx
->Driver
.ClearTexSubImage(ctx
,
4070 xoffset
, yoffset
, 0,
4072 data
? clearValue
[i
] : NULL
);
4077 _mesa_unlock_texture(ctx
, texObj
);
4081 _mesa_ClearTexImage( GLuint texture
, GLint level
,
4082 GLenum format
, GLenum type
, const void *data
)
4084 GET_CURRENT_CONTEXT(ctx
);
4085 struct gl_texture_object
*texObj
;
4086 struct gl_texture_image
*texImages
[MAX_FACES
];
4087 GLubyte clearValue
[MAX_FACES
][MAX_PIXEL_BYTES
];
4090 texObj
= get_tex_obj_for_clear(ctx
, "glClearTexImage", texture
);
4095 _mesa_lock_texture(ctx
, texObj
);
4097 numImages
= get_tex_images_for_clear(ctx
, "glClearTexImage",
4098 texObj
, level
, texImages
);
4100 for (i
= 0; i
< numImages
; i
++) {
4101 if (!check_clear_tex_image(ctx
, "glClearTexImage",
4108 for (i
= 0; i
< numImages
; i
++) {
4109 ctx
->Driver
.ClearTexSubImage(ctx
, texImages
[i
],
4110 -(GLint
) texImages
[i
]->Border
, /* xoffset */
4111 -(GLint
) texImages
[i
]->Border
, /* yoffset */
4112 -(GLint
) texImages
[i
]->Border
, /* zoffset */
4113 texImages
[i
]->Width
,
4114 texImages
[i
]->Height
,
4115 texImages
[i
]->Depth
,
4116 data
? clearValue
[i
] : NULL
);
4120 _mesa_unlock_texture(ctx
, texObj
);
4126 /**********************************************************************/
4127 /****** Compressed Textures ******/
4128 /**********************************************************************/
4132 * Target checking for glCompressedTexSubImage[123]D().
4133 * \return GL_TRUE if error, GL_FALSE if no error
4134 * Must come before other error checking so that the texture object can
4135 * be correctly retrieved using _mesa_get_current_tex_object.
4138 compressed_subtexture_target_check(struct gl_context
*ctx
, GLenum target
,
4139 GLint dims
, GLenum format
, bool dsa
,
4144 if (dsa
&& target
== GL_TEXTURE_RECTANGLE
) {
4145 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid target %s)", caller
,
4146 _mesa_enum_to_string(target
));
4156 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
4157 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
4158 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
4159 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
4160 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
4161 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
4162 targetOK
= ctx
->Extensions
.ARB_texture_cube_map
;
4165 targetOK
= GL_FALSE
;
4171 case GL_TEXTURE_CUBE_MAP
:
4172 targetOK
= dsa
&& ctx
->Extensions
.ARB_texture_cube_map
;
4174 case GL_TEXTURE_2D_ARRAY
:
4175 targetOK
= _mesa_is_gles3(ctx
) ||
4176 (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
);
4178 case GL_TEXTURE_CUBE_MAP_ARRAY
:
4179 targetOK
= ctx
->Extensions
.ARB_texture_cube_map_array
;
4184 * OpenGL 4.5 spec (30.10.2014) says in Section 8.7 Compressed Texture
4186 * "An INVALID_OPERATION error is generated by
4187 * CompressedTex*SubImage3D if the internal format of the texture
4188 * is one of the EAC, ETC2, or RGTC formats and either border is
4189 * non-zero, or the effective target for the texture is not
4190 * TEXTURE_2D_ARRAY."
4192 * NOTE: that's probably a spec error. It should probably say
4193 * "... or the effective target for the texture is not
4194 * TEXTURE_2D_ARRAY, TEXTURE_CUBE_MAP, nor
4195 * GL_TEXTURE_CUBE_MAP_ARRAY."
4196 * since those targets are 2D images and they support all compression
4199 * Instead of listing all these, just list those which are allowed,
4200 * which is (at this time) only bptc. Otherwise we'd say s3tc (and
4201 * more) are valid here, which they are not, but of course not
4202 * mentioned by core spec.
4205 /* These are the only 3D compression formats supported at this time */
4206 case GL_COMPRESSED_RGBA_BPTC_UNORM
:
4207 case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM
:
4208 case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT
:
4209 case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
:
4213 /* invalid format */
4214 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4215 "%s(invalid target %s for format %s)", caller
,
4216 _mesa_enum_to_string(target
),
4217 _mesa_enum_to_string(format
));
4222 targetOK
= GL_FALSE
;
4228 /* no 1D compressed textures at this time */
4229 targetOK
= GL_FALSE
;
4234 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", caller
,
4235 _mesa_enum_to_string(target
));
4243 * Error checking for glCompressedTexSubImage[123]D().
4244 * \return GL_TRUE if error, GL_FALSE if no error
4247 compressed_subtexture_error_check(struct gl_context
*ctx
, GLint dims
,
4248 const struct gl_texture_object
*texObj
,
4249 GLenum target
, GLint level
,
4250 GLint xoffset
, GLint yoffset
, GLint zoffset
,
4251 GLsizei width
, GLsizei height
, GLsizei depth
,
4252 GLenum format
, GLsizei imageSize
,
4253 const GLvoid
*data
, const char *callerName
)
4255 struct gl_texture_image
*texImage
;
4258 /* this will catch any invalid compressed format token */
4259 if (!_mesa_is_compressed_format(ctx
, format
)) {
4260 _mesa_error(ctx
, GL_INVALID_ENUM
,
4261 "%s(format)", callerName
);
4265 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
4266 _mesa_error(ctx
, GL_INVALID_VALUE
,
4272 /* validate the bound PBO, if any */
4273 if (!_mesa_validate_pbo_source_compressed(ctx
, dims
, &ctx
->Unpack
,
4274 imageSize
, data
, callerName
)) {
4278 /* Check for invalid pixel storage modes */
4279 if (!_mesa_compressed_pixel_storage_error_check(ctx
, dims
,
4280 &ctx
->Unpack
, callerName
)) {
4284 expectedSize
= compressed_tex_size(width
, height
, depth
, format
);
4285 if (expectedSize
!= imageSize
) {
4286 _mesa_error(ctx
, GL_INVALID_VALUE
,
4288 callerName
, imageSize
);
4292 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
4294 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4295 "%s(invalid texture image)",
4300 if ((GLint
) format
!= texImage
->InternalFormat
) {
4301 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4303 callerName
, _mesa_enum_to_string(format
));
4307 if (compressedteximage_only_format(ctx
, format
)) {
4308 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4309 "%s(format=%s cannot be updated)",
4310 callerName
, _mesa_enum_to_string(format
));
4314 if (error_check_subtexture_dimensions(ctx
, dims
,
4315 texImage
, xoffset
, yoffset
, zoffset
,
4316 width
, height
, depth
,
4326 _mesa_CompressedTexImage1D(GLenum target
, GLint level
,
4327 GLenum internalFormat
, GLsizei width
,
4328 GLint border
, GLsizei imageSize
,
4331 GET_CURRENT_CONTEXT(ctx
);
4332 teximage(ctx
, GL_TRUE
, 1, target
, level
, internalFormat
,
4333 width
, 1, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
4338 _mesa_CompressedTexImage2D(GLenum target
, GLint level
,
4339 GLenum internalFormat
, GLsizei width
,
4340 GLsizei height
, GLint border
, GLsizei imageSize
,
4343 GET_CURRENT_CONTEXT(ctx
);
4344 teximage(ctx
, GL_TRUE
, 2, target
, level
, internalFormat
,
4345 width
, height
, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
4350 _mesa_CompressedTexImage3D(GLenum target
, GLint level
,
4351 GLenum internalFormat
, GLsizei width
,
4352 GLsizei height
, GLsizei depth
, GLint border
,
4353 GLsizei imageSize
, const GLvoid
*data
)
4355 GET_CURRENT_CONTEXT(ctx
);
4356 teximage(ctx
, GL_TRUE
, 3, target
, level
, internalFormat
,
4357 width
, height
, depth
, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
4362 * Common helper for glCompressedTexSubImage1/2/3D() and
4363 * glCompressedTextureSubImage1/2/3D().
4366 _mesa_compressed_texture_sub_image(struct gl_context
*ctx
, GLuint dims
,
4367 struct gl_texture_object
*texObj
,
4368 struct gl_texture_image
*texImage
,
4369 GLenum target
, GLint level
,
4370 GLint xoffset
, GLint yoffset
,
4372 GLsizei width
, GLsizei height
,
4374 GLenum format
, GLsizei imageSize
,
4377 FLUSH_VERTICES(ctx
, 0);
4379 _mesa_lock_texture(ctx
, texObj
);
4381 if (width
> 0 && height
> 0 && depth
> 0) {
4382 ctx
->Driver
.CompressedTexSubImage(ctx
, dims
, texImage
,
4383 xoffset
, yoffset
, zoffset
,
4384 width
, height
, depth
,
4385 format
, imageSize
, data
);
4387 check_gen_mipmap(ctx
, target
, texObj
, level
);
4389 /* NOTE: Don't signal _NEW_TEXTURE since we've only changed
4390 * the texel data, not the texture format, size, etc.
4394 _mesa_unlock_texture(ctx
, texObj
);
4399 _mesa_CompressedTexSubImage1D(GLenum target
, GLint level
, GLint xoffset
,
4400 GLsizei width
, GLenum format
,
4401 GLsizei imageSize
, const GLvoid
*data
)
4403 struct gl_texture_object
*texObj
;
4404 struct gl_texture_image
*texImage
;
4406 GET_CURRENT_CONTEXT(ctx
);
4408 if (compressed_subtexture_target_check(ctx
, target
, 1, format
, false,
4409 "glCompressedTexSubImage1D")) {
4413 texObj
= _mesa_get_current_tex_object(ctx
, target
);
4417 if (compressed_subtexture_error_check(ctx
, 1, texObj
, target
,
4418 level
, xoffset
, 0, 0,
4420 format
, imageSize
, data
,
4421 "glCompressedTexSubImage1D")) {
4425 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
4428 _mesa_compressed_texture_sub_image(ctx
, 1, texObj
, texImage
, target
, level
,
4429 xoffset
, 0, 0, width
, 1, 1,
4430 format
, imageSize
, data
);
4434 _mesa_CompressedTextureSubImage1D(GLuint texture
, GLint level
, GLint xoffset
,
4435 GLsizei width
, GLenum format
,
4436 GLsizei imageSize
, const GLvoid
*data
)
4438 struct gl_texture_object
*texObj
;
4439 struct gl_texture_image
*texImage
;
4441 GET_CURRENT_CONTEXT(ctx
);
4443 texObj
= _mesa_lookup_texture_err(ctx
, texture
,
4444 "glCompressedTextureSubImage1D");
4448 if (compressed_subtexture_target_check(ctx
, texObj
->Target
, 1, format
, true,
4449 "glCompressedTextureSubImage1D")) {
4453 if (compressed_subtexture_error_check(ctx
, 1, texObj
, texObj
->Target
,
4454 level
, xoffset
, 0, 0,
4456 format
, imageSize
, data
,
4457 "glCompressedTextureSubImage1D")) {
4461 texImage
= _mesa_select_tex_image(texObj
, texObj
->Target
, level
);
4464 _mesa_compressed_texture_sub_image(ctx
, 1, texObj
, texImage
,
4465 texObj
->Target
, level
,
4466 xoffset
, 0, 0, width
, 1, 1,
4467 format
, imageSize
, data
);
4472 _mesa_CompressedTexSubImage2D(GLenum target
, GLint level
, GLint xoffset
,
4473 GLint yoffset
, GLsizei width
, GLsizei height
,
4474 GLenum format
, GLsizei imageSize
,
4477 struct gl_texture_object
*texObj
;
4478 struct gl_texture_image
*texImage
;
4480 GET_CURRENT_CONTEXT(ctx
);
4482 if (compressed_subtexture_target_check(ctx
, target
, 2, format
, false,
4483 "glCompressedTexSubImage2D")) {
4487 texObj
= _mesa_get_current_tex_object(ctx
, target
);
4491 if (compressed_subtexture_error_check(ctx
, 2, texObj
, target
,
4492 level
, xoffset
, yoffset
, 0,
4494 format
, imageSize
, data
,
4495 "glCompressedTexSubImage2D")) {
4500 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
4503 _mesa_compressed_texture_sub_image(ctx
, 2, texObj
, texImage
, target
, level
,
4504 xoffset
, yoffset
, 0, width
, height
, 1,
4505 format
, imageSize
, data
);
4509 _mesa_CompressedTextureSubImage2D(GLuint texture
, GLint level
, GLint xoffset
,
4511 GLsizei width
, GLsizei height
,
4512 GLenum format
, GLsizei imageSize
,
4515 struct gl_texture_object
*texObj
;
4516 struct gl_texture_image
*texImage
;
4518 GET_CURRENT_CONTEXT(ctx
);
4520 texObj
= _mesa_lookup_texture_err(ctx
, texture
,
4521 "glCompressedTextureSubImage2D");
4525 if (compressed_subtexture_target_check(ctx
, texObj
->Target
, 2, format
, true,
4526 "glCompressedTextureSubImage2D")) {
4530 if (compressed_subtexture_error_check(ctx
, 2, texObj
, texObj
->Target
,
4531 level
, xoffset
, yoffset
, 0,
4533 format
, imageSize
, data
,
4534 "glCompressedTextureSubImage2D")) {
4538 texImage
= _mesa_select_tex_image(texObj
, texObj
->Target
, level
);
4541 _mesa_compressed_texture_sub_image(ctx
, 2, texObj
, texImage
,
4542 texObj
->Target
, level
,
4543 xoffset
, yoffset
, 0, width
, height
, 1,
4544 format
, imageSize
, data
);
4548 _mesa_CompressedTexSubImage3D(GLenum target
, GLint level
, GLint xoffset
,
4549 GLint yoffset
, GLint zoffset
, GLsizei width
,
4550 GLsizei height
, GLsizei depth
, GLenum format
,
4551 GLsizei imageSize
, const GLvoid
*data
)
4553 struct gl_texture_object
*texObj
;
4554 struct gl_texture_image
*texImage
;
4556 GET_CURRENT_CONTEXT(ctx
);
4558 if (compressed_subtexture_target_check(ctx
, target
, 3, format
, false,
4559 "glCompressedTexSubImage3D")) {
4563 texObj
= _mesa_get_current_tex_object(ctx
, target
);
4567 if (compressed_subtexture_error_check(ctx
, 3, texObj
, target
,
4568 level
, xoffset
, yoffset
, zoffset
,
4569 width
, height
, depth
,
4570 format
, imageSize
, data
,
4571 "glCompressedTexSubImage3D")) {
4576 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
4579 _mesa_compressed_texture_sub_image(ctx
, 3, texObj
, texImage
, target
, level
,
4580 xoffset
, yoffset
, zoffset
,
4581 width
, height
, depth
,
4582 format
, imageSize
, data
);
4586 _mesa_CompressedTextureSubImage3D(GLuint texture
, GLint level
, GLint xoffset
,
4587 GLint yoffset
, GLint zoffset
, GLsizei width
,
4588 GLsizei height
, GLsizei depth
,
4589 GLenum format
, GLsizei imageSize
,
4592 struct gl_texture_object
*texObj
;
4593 struct gl_texture_image
*texImage
;
4595 GET_CURRENT_CONTEXT(ctx
);
4597 texObj
= _mesa_lookup_texture_err(ctx
, texture
,
4598 "glCompressedTextureSubImage3D");
4602 if (compressed_subtexture_target_check(ctx
, texObj
->Target
, 3, format
, true,
4603 "glCompressedTextureSubImage3D")) {
4607 if (compressed_subtexture_error_check(ctx
, 3, texObj
, texObj
->Target
,
4608 level
, xoffset
, yoffset
, zoffset
,
4609 width
, height
, depth
,
4610 format
, imageSize
, data
,
4611 "glCompressedTextureSubImage3D")) {
4615 /* Must handle special case GL_TEXTURE_CUBE_MAP. */
4616 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
4617 const char *pixels
= data
;
4621 /* Make sure the texture object is a proper cube.
4622 * (See texturesubimage in teximage.c for details on why this check is
4625 if (!_mesa_cube_level_complete(texObj
, level
)) {
4626 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4627 "glCompressedTextureSubImage3D(cube map incomplete)");
4631 /* Copy in each face. */
4632 for (i
= 0; i
< 6; ++i
) {
4633 texImage
= texObj
->Image
[i
][level
];
4636 _mesa_compressed_texture_sub_image(ctx
, 3, texObj
, texImage
,
4637 texObj
->Target
, level
,
4638 xoffset
, yoffset
, zoffset
,
4640 format
, imageSize
, pixels
);
4642 /* Compressed images don't have a client format */
4643 image_stride
= _mesa_format_image_size(texImage
->TexFormat
,
4645 texImage
->Height
, 1);
4647 pixels
+= image_stride
;
4648 imageSize
-= image_stride
;
4652 texImage
= _mesa_select_tex_image(texObj
, texObj
->Target
, level
);
4655 _mesa_compressed_texture_sub_image(ctx
, 3, texObj
, texImage
,
4656 texObj
->Target
, level
,
4657 xoffset
, yoffset
, zoffset
,
4658 width
, height
, depth
,
4659 format
, imageSize
, data
);
4664 get_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
4666 if (ctx
->API
!= API_OPENGL_CORE
) {
4667 switch (internalFormat
) {
4669 return MESA_FORMAT_A_UNORM8
;
4671 return MESA_FORMAT_A_UNORM16
;
4672 case GL_ALPHA16F_ARB
:
4673 return MESA_FORMAT_A_FLOAT16
;
4674 case GL_ALPHA32F_ARB
:
4675 return MESA_FORMAT_A_FLOAT32
;
4676 case GL_ALPHA8I_EXT
:
4677 return MESA_FORMAT_A_SINT8
;
4678 case GL_ALPHA16I_EXT
:
4679 return MESA_FORMAT_A_SINT16
;
4680 case GL_ALPHA32I_EXT
:
4681 return MESA_FORMAT_A_SINT32
;
4682 case GL_ALPHA8UI_EXT
:
4683 return MESA_FORMAT_A_UINT8
;
4684 case GL_ALPHA16UI_EXT
:
4685 return MESA_FORMAT_A_UINT16
;
4686 case GL_ALPHA32UI_EXT
:
4687 return MESA_FORMAT_A_UINT32
;
4689 return MESA_FORMAT_L_UNORM8
;
4690 case GL_LUMINANCE16
:
4691 return MESA_FORMAT_L_UNORM16
;
4692 case GL_LUMINANCE16F_ARB
:
4693 return MESA_FORMAT_L_FLOAT16
;
4694 case GL_LUMINANCE32F_ARB
:
4695 return MESA_FORMAT_L_FLOAT32
;
4696 case GL_LUMINANCE8I_EXT
:
4697 return MESA_FORMAT_L_SINT8
;
4698 case GL_LUMINANCE16I_EXT
:
4699 return MESA_FORMAT_L_SINT16
;
4700 case GL_LUMINANCE32I_EXT
:
4701 return MESA_FORMAT_L_SINT32
;
4702 case GL_LUMINANCE8UI_EXT
:
4703 return MESA_FORMAT_L_UINT8
;
4704 case GL_LUMINANCE16UI_EXT
:
4705 return MESA_FORMAT_L_UINT16
;
4706 case GL_LUMINANCE32UI_EXT
:
4707 return MESA_FORMAT_L_UINT32
;
4708 case GL_LUMINANCE8_ALPHA8
:
4709 return MESA_FORMAT_L8A8_UNORM
;
4710 case GL_LUMINANCE16_ALPHA16
:
4711 return MESA_FORMAT_L16A16_UNORM
;
4712 case GL_LUMINANCE_ALPHA16F_ARB
:
4713 return MESA_FORMAT_LA_FLOAT16
;
4714 case GL_LUMINANCE_ALPHA32F_ARB
:
4715 return MESA_FORMAT_LA_FLOAT32
;
4716 case GL_LUMINANCE_ALPHA8I_EXT
:
4717 return MESA_FORMAT_LA_SINT8
;
4718 case GL_LUMINANCE_ALPHA16I_EXT
:
4719 return MESA_FORMAT_LA_SINT16
;
4720 case GL_LUMINANCE_ALPHA32I_EXT
:
4721 return MESA_FORMAT_LA_SINT32
;
4722 case GL_LUMINANCE_ALPHA8UI_EXT
:
4723 return MESA_FORMAT_LA_UINT8
;
4724 case GL_LUMINANCE_ALPHA16UI_EXT
:
4725 return MESA_FORMAT_LA_UINT16
;
4726 case GL_LUMINANCE_ALPHA32UI_EXT
:
4727 return MESA_FORMAT_LA_UINT32
;
4729 return MESA_FORMAT_I_UNORM8
;
4730 case GL_INTENSITY16
:
4731 return MESA_FORMAT_I_UNORM16
;
4732 case GL_INTENSITY16F_ARB
:
4733 return MESA_FORMAT_I_FLOAT16
;
4734 case GL_INTENSITY32F_ARB
:
4735 return MESA_FORMAT_I_FLOAT32
;
4736 case GL_INTENSITY8I_EXT
:
4737 return MESA_FORMAT_I_SINT8
;
4738 case GL_INTENSITY16I_EXT
:
4739 return MESA_FORMAT_I_SINT16
;
4740 case GL_INTENSITY32I_EXT
:
4741 return MESA_FORMAT_I_SINT32
;
4742 case GL_INTENSITY8UI_EXT
:
4743 return MESA_FORMAT_I_UINT8
;
4744 case GL_INTENSITY16UI_EXT
:
4745 return MESA_FORMAT_I_UINT16
;
4746 case GL_INTENSITY32UI_EXT
:
4747 return MESA_FORMAT_I_UINT32
;
4753 if (ctx
->API
== API_OPENGL_CORE
&&
4754 ctx
->Extensions
.ARB_texture_buffer_object_rgb32
) {
4755 switch (internalFormat
) {
4757 return MESA_FORMAT_RGB_FLOAT32
;
4759 return MESA_FORMAT_RGB_UINT32
;
4761 return MESA_FORMAT_RGB_SINT32
;
4767 switch (internalFormat
) {
4769 return MESA_FORMAT_R8G8B8A8_UNORM
;
4771 return MESA_FORMAT_RGBA_UNORM16
;
4772 case GL_RGBA16F_ARB
:
4773 return MESA_FORMAT_RGBA_FLOAT16
;
4774 case GL_RGBA32F_ARB
:
4775 return MESA_FORMAT_RGBA_FLOAT32
;
4777 return MESA_FORMAT_RGBA_SINT8
;
4778 case GL_RGBA16I_EXT
:
4779 return MESA_FORMAT_RGBA_SINT16
;
4780 case GL_RGBA32I_EXT
:
4781 return MESA_FORMAT_RGBA_SINT32
;
4782 case GL_RGBA8UI_EXT
:
4783 return MESA_FORMAT_RGBA_UINT8
;
4784 case GL_RGBA16UI_EXT
:
4785 return MESA_FORMAT_RGBA_UINT16
;
4786 case GL_RGBA32UI_EXT
:
4787 return MESA_FORMAT_RGBA_UINT32
;
4790 return MESA_FORMAT_R8G8_UNORM
;
4792 return MESA_FORMAT_R16G16_UNORM
;
4794 return MESA_FORMAT_RG_FLOAT16
;
4796 return MESA_FORMAT_RG_FLOAT32
;
4798 return MESA_FORMAT_RG_SINT8
;
4800 return MESA_FORMAT_RG_SINT16
;
4802 return MESA_FORMAT_RG_SINT32
;
4804 return MESA_FORMAT_RG_UINT8
;
4806 return MESA_FORMAT_RG_UINT16
;
4808 return MESA_FORMAT_RG_UINT32
;
4811 return MESA_FORMAT_R_UNORM8
;
4813 return MESA_FORMAT_R_UNORM16
;
4815 return MESA_FORMAT_R_FLOAT16
;
4817 return MESA_FORMAT_R_FLOAT32
;
4819 return MESA_FORMAT_R_SINT8
;
4821 return MESA_FORMAT_R_SINT16
;
4823 return MESA_FORMAT_R_SINT32
;
4825 return MESA_FORMAT_R_UINT8
;
4827 return MESA_FORMAT_R_UINT16
;
4829 return MESA_FORMAT_R_UINT32
;
4832 return MESA_FORMAT_NONE
;
4838 _mesa_validate_texbuffer_format(const struct gl_context
*ctx
,
4839 GLenum internalFormat
)
4841 mesa_format format
= get_texbuffer_format(ctx
, internalFormat
);
4844 if (format
== MESA_FORMAT_NONE
)
4845 return MESA_FORMAT_NONE
;
4847 datatype
= _mesa_get_format_datatype(format
);
4849 /* The GL_ARB_texture_buffer_object spec says:
4851 * "If ARB_texture_float is not supported, references to the
4852 * floating-point internal formats provided by that extension should be
4853 * removed, and such formats may not be passed to TexBufferARB."
4855 * As a result, GL_HALF_FLOAT internal format depends on both
4856 * GL_ARB_texture_float and GL_ARB_half_float_pixel.
4858 if ((datatype
== GL_FLOAT
|| datatype
== GL_HALF_FLOAT
) &&
4859 !ctx
->Extensions
.ARB_texture_float
)
4860 return MESA_FORMAT_NONE
;
4862 if (!ctx
->Extensions
.ARB_texture_rg
) {
4863 GLenum base_format
= _mesa_get_format_base_format(format
);
4864 if (base_format
== GL_R
|| base_format
== GL_RG
)
4865 return MESA_FORMAT_NONE
;
4868 if (!ctx
->Extensions
.ARB_texture_buffer_object_rgb32
) {
4869 GLenum base_format
= _mesa_get_format_base_format(format
);
4870 if (base_format
== GL_RGB
)
4871 return MESA_FORMAT_NONE
;
4878 _mesa_texture_buffer_range(struct gl_context
*ctx
,
4879 struct gl_texture_object
*texObj
,
4880 GLenum internalFormat
,
4881 struct gl_buffer_object
*bufObj
,
4882 GLintptr offset
, GLsizeiptr size
,
4887 /* NOTE: ARB_texture_buffer_object has interactions with
4888 * the compatibility profile that are not implemented.
4890 if (!(ctx
->API
== API_OPENGL_CORE
&&
4891 ctx
->Extensions
.ARB_texture_buffer_object
)) {
4892 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4893 "%s(ARB_texture_buffer_object is not"
4894 " implemented for the compatibility profile)", caller
);
4898 format
= _mesa_validate_texbuffer_format(ctx
, internalFormat
);
4899 if (format
== MESA_FORMAT_NONE
) {
4900 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalFormat %s)",
4901 caller
, _mesa_enum_to_string(internalFormat
));
4905 FLUSH_VERTICES(ctx
, 0);
4907 _mesa_lock_texture(ctx
, texObj
);
4909 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, bufObj
);
4910 texObj
->BufferObjectFormat
= internalFormat
;
4911 texObj
->_BufferObjectFormat
= format
;
4912 texObj
->BufferOffset
= offset
;
4913 texObj
->BufferSize
= size
;
4915 _mesa_unlock_texture(ctx
, texObj
);
4917 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewTextureBuffer
;
4920 bufObj
->UsageHistory
|= USAGE_TEXTURE_BUFFER
;
4926 * Make sure the texture buffer target is GL_TEXTURE_BUFFER.
4927 * Return true if it is, and return false if it is not
4928 * (and throw INVALID ENUM as dictated in the OpenGL 4.5
4929 * core spec, 02.02.2015, PDF page 245).
4932 check_texture_buffer_target(struct gl_context
*ctx
, GLenum target
,
4935 if (target
!= GL_TEXTURE_BUFFER_ARB
) {
4936 _mesa_error(ctx
, GL_INVALID_ENUM
,
4937 "%s(texture target is not GL_TEXTURE_BUFFER)", caller
);
4945 * Check for errors related to the texture buffer range.
4946 * Return false if errors are found, true if none are found.
4949 check_texture_buffer_range(struct gl_context
*ctx
,
4950 struct gl_buffer_object
*bufObj
,
4951 GLintptr offset
, GLsizeiptr size
,
4954 /* OpenGL 4.5 core spec (02.02.2015) says in Section 8.9 Buffer
4955 * Textures (PDF page 245):
4956 * "An INVALID_VALUE error is generated if offset is negative, if
4957 * size is less than or equal to zero, or if offset + size is greater
4958 * than the value of BUFFER_SIZE for the buffer bound to target."
4961 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(offset=%d < 0)", caller
,
4967 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(size=%d <= 0)", caller
,
4972 if (offset
+ size
> bufObj
->Size
) {
4973 _mesa_error(ctx
, GL_INVALID_VALUE
,
4974 "%s(offset=%d + size=%d > buffer_size=%d)", caller
,
4975 (int) offset
, (int) size
, (int) bufObj
->Size
);
4979 /* OpenGL 4.5 core spec (02.02.2015) says in Section 8.9 Buffer
4980 * Textures (PDF page 245):
4981 * "An INVALID_VALUE error is generated if offset is not an integer
4982 * multiple of the value of TEXTURE_BUFFER_OFFSET_ALIGNMENT."
4984 if (offset
% ctx
->Const
.TextureBufferOffsetAlignment
) {
4985 _mesa_error(ctx
, GL_INVALID_VALUE
,
4986 "%s(invalid offset alignment)", caller
);
4994 /** GL_ARB_texture_buffer_object */
4996 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
)
4998 struct gl_texture_object
*texObj
;
4999 struct gl_buffer_object
*bufObj
;
5001 GET_CURRENT_CONTEXT(ctx
);
5003 /* Need to catch a bad target before it gets to
5004 * _mesa_get_current_tex_object.
5006 if (!check_texture_buffer_target(ctx
, target
, "glTexBuffer"))
5010 bufObj
= _mesa_lookup_bufferobj_err(ctx
, buffer
, "glTexBuffer");
5016 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5020 _mesa_texture_buffer_range(ctx
, texObj
, internalFormat
, bufObj
, 0,
5021 buffer
? -1 : 0, "glTexBuffer");
5025 /** GL_ARB_texture_buffer_range */
5027 _mesa_TexBufferRange(GLenum target
, GLenum internalFormat
, GLuint buffer
,
5028 GLintptr offset
, GLsizeiptr size
)
5030 struct gl_texture_object
*texObj
;
5031 struct gl_buffer_object
*bufObj
;
5033 GET_CURRENT_CONTEXT(ctx
);
5035 /* Need to catch a bad target before it gets to
5036 * _mesa_get_current_tex_object.
5038 if (!check_texture_buffer_target(ctx
, target
, "glTexBufferRange"))
5042 bufObj
= _mesa_lookup_bufferobj_err(ctx
, buffer
, "glTexBufferRange");
5046 if (!check_texture_buffer_range(ctx
, bufObj
, offset
, size
,
5047 "glTexBufferRange"))
5051 /* OpenGL 4.5 core spec (02.02.2015) says in Section 8.9 Buffer
5052 * Textures (PDF page 254):
5053 * "If buffer is zero, then any buffer object attached to the buffer
5054 * texture is detached, the values offset and size are ignored and
5055 * the state for offset and size for the buffer texture are reset to
5063 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5067 _mesa_texture_buffer_range(ctx
, texObj
, internalFormat
, bufObj
,
5068 offset
, size
, "glTexBufferRange");
5072 _mesa_TextureBuffer(GLuint texture
, GLenum internalFormat
, GLuint buffer
)
5074 struct gl_texture_object
*texObj
;
5075 struct gl_buffer_object
*bufObj
;
5077 GET_CURRENT_CONTEXT(ctx
);
5080 bufObj
= _mesa_lookup_bufferobj_err(ctx
, buffer
, "glTextureBuffer");
5086 /* Get the texture object by Name. */
5087 texObj
= _mesa_lookup_texture_err(ctx
, texture
, "glTextureBuffer");
5091 if (!check_texture_buffer_target(ctx
, texObj
->Target
, "glTextureBuffer"))
5094 _mesa_texture_buffer_range(ctx
, texObj
, internalFormat
,
5095 bufObj
, 0, buffer
? -1 : 0, "glTextureBuffer");
5099 _mesa_TextureBufferRange(GLuint texture
, GLenum internalFormat
, GLuint buffer
,
5100 GLintptr offset
, GLsizeiptr size
)
5102 struct gl_texture_object
*texObj
;
5103 struct gl_buffer_object
*bufObj
;
5105 GET_CURRENT_CONTEXT(ctx
);
5108 bufObj
= _mesa_lookup_bufferobj_err(ctx
, buffer
,
5109 "glTextureBufferRange");
5113 if (!check_texture_buffer_range(ctx
, bufObj
, offset
, size
,
5114 "glTextureBufferRange"))
5118 /* OpenGL 4.5 core spec (02.02.2015) says in Section 8.9 Buffer
5119 * Textures (PDF page 254):
5120 * "If buffer is zero, then any buffer object attached to the buffer
5121 * texture is detached, the values offset and size are ignored and
5122 * the state for offset and size for the buffer texture are reset to
5130 /* Get the texture object by Name. */
5131 texObj
= _mesa_lookup_texture_err(ctx
, texture
, "glTextureBufferRange");
5135 if (!check_texture_buffer_target(ctx
, texObj
->Target
,
5136 "glTextureBufferRange"))
5139 _mesa_texture_buffer_range(ctx
, texObj
, internalFormat
,
5140 bufObj
, offset
, size
, "glTextureBufferRange");
5144 _mesa_is_renderable_texture_format(struct gl_context
*ctx
, GLenum internalformat
)
5146 /* Everything that is allowed for renderbuffers,
5147 * except for a base format of GL_STENCIL_INDEX, unless supported.
5149 GLenum baseFormat
= _mesa_base_fbo_format(ctx
, internalformat
);
5150 if (ctx
->Extensions
.ARB_texture_stencil8
)
5151 return baseFormat
!= 0;
5153 return baseFormat
!= 0 && baseFormat
!= GL_STENCIL_INDEX
;
5157 /** GL_ARB_texture_multisample */
5159 check_multisample_target(GLuint dims
, GLenum target
, bool dsa
)
5162 case GL_TEXTURE_2D_MULTISAMPLE
:
5164 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
5165 return dims
== 2 && !dsa
;
5166 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
5168 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
5169 return dims
== 3 && !dsa
;
5177 texture_image_multisample(struct gl_context
*ctx
, GLuint dims
,
5178 struct gl_texture_object
*texObj
,
5179 GLenum target
, GLsizei samples
,
5180 GLint internalformat
, GLsizei width
,
5181 GLsizei height
, GLsizei depth
,
5182 GLboolean fixedsamplelocations
,
5183 GLboolean immutable
, const char *func
)
5185 struct gl_texture_image
*texImage
;
5186 GLboolean sizeOK
, dimensionsOK
, samplesOK
;
5187 mesa_format texFormat
;
5188 GLenum sample_count_error
;
5189 bool dsa
= strstr(func
, "ture") ? true : false;
5191 if (!((ctx
->Extensions
.ARB_texture_multisample
5192 && _mesa_is_desktop_gl(ctx
))) && !_mesa_is_gles31(ctx
)) {
5193 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(unsupported)", func
);
5198 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(samples < 1)", func
);
5202 if (!check_multisample_target(dims
, target
, dsa
)) {
5204 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(target)", func
);
5208 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
5213 /* check that the specified internalformat is color/depth/stencil-renderable;
5214 * refer GL3.1 spec 4.4.4
5217 if (immutable
&& !_mesa_is_legal_tex_storage_format(ctx
, internalformat
)) {
5218 _mesa_error(ctx
, GL_INVALID_ENUM
,
5219 "%s(internalformat=%s not legal for immutable-format)",
5220 func
, _mesa_enum_to_string(internalformat
));
5224 if (!_mesa_is_renderable_texture_format(ctx
, internalformat
)) {
5225 /* Page 172 of OpenGL ES 3.1 spec says:
5226 * "An INVALID_ENUM error is generated if sizedinternalformat is not
5227 * color-renderable, depth-renderable, or stencil-renderable (as
5228 * defined in section 9.4).
5230 * (Same error is also defined for desktop OpenGL for multisample
5231 * teximage/texstorage functions.)
5233 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalformat=%s)", func
,
5234 _mesa_enum_to_string(internalformat
));
5238 sample_count_error
= _mesa_check_sample_count(ctx
, target
,
5239 internalformat
, samples
);
5240 samplesOK
= sample_count_error
== GL_NO_ERROR
;
5242 /* Page 254 of OpenGL 4.4 spec says:
5243 * "Proxy arrays for two-dimensional multisample and two-dimensional
5244 * multisample array textures are operated on in the same way when
5245 * TexImage2DMultisample is called with target specified as
5246 * PROXY_TEXTURE_2D_MULTISAMPLE, or TexImage3DMultisample is called
5247 * with target specified as PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY.
5248 * However, if samples is not supported, then no error is generated.
5250 if (!samplesOK
&& !_mesa_is_proxy_texture(target
)) {
5251 _mesa_error(ctx
, sample_count_error
, "%s(samples)", func
);
5255 if (immutable
&& (!texObj
|| (texObj
->Name
== 0))) {
5256 _mesa_error(ctx
, GL_INVALID_OPERATION
,
5257 "%s(texture object 0)",
5262 texImage
= _mesa_get_tex_image(ctx
, texObj
, 0, 0);
5264 if (texImage
== NULL
) {
5265 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s()", func
);
5269 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, 0,
5270 internalformat
, GL_NONE
, GL_NONE
);
5271 assert(texFormat
!= MESA_FORMAT_NONE
);
5273 dimensionsOK
= _mesa_legal_texture_dimensions(ctx
, target
, 0,
5274 width
, height
, depth
, 0);
5276 sizeOK
= ctx
->Driver
.TestProxyTexImage(ctx
, target
, 0, texFormat
,
5277 width
, height
, depth
, 0);
5279 if (_mesa_is_proxy_texture(target
)) {
5280 if (samplesOK
&& dimensionsOK
&& sizeOK
) {
5281 init_teximage_fields_ms(ctx
, texImage
, width
, height
, depth
, 0,
5282 internalformat
, texFormat
,
5283 samples
, fixedsamplelocations
);
5286 /* clear all image fields */
5287 clear_teximage_fields(texImage
);
5291 if (!dimensionsOK
) {
5292 _mesa_error(ctx
, GL_INVALID_VALUE
,
5293 "%s(invalid width or height)", func
);
5298 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s(texture too large)", func
);
5302 /* Check if texObj->Immutable is set */
5303 if (texObj
->Immutable
) {
5304 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(immutable)", func
);
5308 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
5310 init_teximage_fields_ms(ctx
, texImage
, width
, height
, depth
, 0,
5311 internalformat
, texFormat
,
5312 samples
, fixedsamplelocations
);
5314 if (width
> 0 && height
> 0 && depth
> 0) {
5315 if (!ctx
->Driver
.AllocTextureStorage(ctx
, texObj
, 1,
5316 width
, height
, depth
)) {
5317 /* tidy up the texture image state. strictly speaking,
5318 * we're allowed to just leave this in whatever state we
5319 * like, but being tidy is good.
5321 _mesa_init_teximage_fields(ctx
, texImage
,
5322 0, 0, 0, 0, GL_NONE
, MESA_FORMAT_NONE
);
5326 texObj
->Immutable
|= immutable
;
5329 _mesa_set_texture_view_state(ctx
, texObj
, target
, 1);
5332 _mesa_update_fbo_texture(ctx
, texObj
, 0, 0);
5338 _mesa_TexImage2DMultisample(GLenum target
, GLsizei samples
,
5339 GLenum internalformat
, GLsizei width
,
5340 GLsizei height
, GLboolean fixedsamplelocations
)
5342 struct gl_texture_object
*texObj
;
5343 GET_CURRENT_CONTEXT(ctx
);
5345 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5349 texture_image_multisample(ctx
, 2, texObj
, target
, samples
,
5350 internalformat
, width
, height
, 1,
5351 fixedsamplelocations
, GL_FALSE
,
5352 "glTexImage2DMultisample");
5357 _mesa_TexImage3DMultisample(GLenum target
, GLsizei samples
,
5358 GLenum internalformat
, GLsizei width
,
5359 GLsizei height
, GLsizei depth
,
5360 GLboolean fixedsamplelocations
)
5362 struct gl_texture_object
*texObj
;
5363 GET_CURRENT_CONTEXT(ctx
);
5365 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5369 texture_image_multisample(ctx
, 3, texObj
, target
, samples
,
5370 internalformat
, width
, height
, depth
,
5371 fixedsamplelocations
, GL_FALSE
,
5372 "glTexImage3DMultisample");
5376 valid_texstorage_ms_parameters(GLsizei width
, GLsizei height
, GLsizei depth
,
5377 GLsizei samples
, unsigned dims
)
5379 GET_CURRENT_CONTEXT(ctx
);
5381 if (!_mesa_valid_tex_storage_dim(width
, height
, depth
)) {
5382 _mesa_error(ctx
, GL_INVALID_VALUE
,
5383 "glTexStorage%uDMultisample(width=%d,height=%d,depth=%d)",
5384 dims
, width
, height
, depth
);
5391 _mesa_TexStorage2DMultisample(GLenum target
, GLsizei samples
,
5392 GLenum internalformat
, GLsizei width
,
5393 GLsizei height
, GLboolean fixedsamplelocations
)
5395 struct gl_texture_object
*texObj
;
5396 GET_CURRENT_CONTEXT(ctx
);
5398 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5402 if (!valid_texstorage_ms_parameters(width
, height
, 1, samples
, 2))
5405 texture_image_multisample(ctx
, 2, texObj
, target
, samples
,
5406 internalformat
, width
, height
, 1,
5407 fixedsamplelocations
, GL_TRUE
,
5408 "glTexStorage2DMultisample");
5412 _mesa_TexStorage3DMultisample(GLenum target
, GLsizei samples
,
5413 GLenum internalformat
, GLsizei width
,
5414 GLsizei height
, GLsizei depth
,
5415 GLboolean fixedsamplelocations
)
5417 struct gl_texture_object
*texObj
;
5418 GET_CURRENT_CONTEXT(ctx
);
5420 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5424 if (!valid_texstorage_ms_parameters(width
, height
, depth
, samples
, 3))
5427 texture_image_multisample(ctx
, 3, texObj
, target
, samples
,
5428 internalformat
, width
, height
, depth
,
5429 fixedsamplelocations
, GL_TRUE
,
5430 "glTexStorage3DMultisample");
5434 _mesa_TextureStorage2DMultisample(GLuint texture
, GLsizei samples
,
5435 GLenum internalformat
, GLsizei width
,
5437 GLboolean fixedsamplelocations
)
5439 struct gl_texture_object
*texObj
;
5440 GET_CURRENT_CONTEXT(ctx
);
5442 texObj
= _mesa_lookup_texture_err(ctx
, texture
,
5443 "glTextureStorage2DMultisample");
5447 if (!valid_texstorage_ms_parameters(width
, height
, 1, samples
, 2))
5450 texture_image_multisample(ctx
, 2, texObj
, texObj
->Target
, samples
,
5451 internalformat
, width
, height
, 1,
5452 fixedsamplelocations
, GL_TRUE
,
5453 "glTextureStorage2DMultisample");
5457 _mesa_TextureStorage3DMultisample(GLuint texture
, GLsizei samples
,
5458 GLenum internalformat
, GLsizei width
,
5459 GLsizei height
, GLsizei depth
,
5460 GLboolean fixedsamplelocations
)
5462 struct gl_texture_object
*texObj
;
5463 GET_CURRENT_CONTEXT(ctx
);
5465 /* Get the texture object by Name. */
5466 texObj
= _mesa_lookup_texture_err(ctx
, texture
,
5467 "glTextureStorage3DMultisample");
5471 if (!valid_texstorage_ms_parameters(width
, height
, depth
, samples
, 3))
5474 texture_image_multisample(ctx
, 3, texObj
, texObj
->Target
, samples
,
5475 internalformat
, width
, height
, depth
,
5476 fixedsamplelocations
, GL_TRUE
,
5477 "glTextureStorage3DMultisample");