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
;
120 * For cube map faces, return a face index in [0,5].
121 * For other targets return 0;
124 _mesa_tex_target_to_face(GLenum target
)
126 if (_mesa_is_cube_face(target
))
127 return (GLuint
) target
- (GLuint
) GL_TEXTURE_CUBE_MAP_POSITIVE_X
;
135 * Install gl_texture_image in a gl_texture_object according to the target
136 * and level parameters.
138 * \param tObj texture object.
139 * \param target texture target.
140 * \param level image level.
141 * \param texImage texture image.
144 set_tex_image(struct gl_texture_object
*tObj
,
145 GLenum target
, GLint level
,
146 struct gl_texture_image
*texImage
)
148 const GLuint face
= _mesa_tex_target_to_face(target
);
152 if (target
== GL_TEXTURE_RECTANGLE_NV
|| target
== GL_TEXTURE_EXTERNAL_OES
)
155 tObj
->Image
[face
][level
] = texImage
;
157 /* Set the 'back' pointer */
158 texImage
->TexObject
= tObj
;
159 texImage
->Level
= level
;
160 texImage
->Face
= face
;
165 * Allocate a texture image structure.
167 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
170 * \return a pointer to gl_texture_image struct with all fields initialized to
173 struct gl_texture_image
*
174 _mesa_new_texture_image( struct gl_context
*ctx
)
177 return CALLOC_STRUCT(gl_texture_image
);
182 * Free a gl_texture_image and associated data.
183 * This function is a fallback called via ctx->Driver.DeleteTextureImage().
185 * \param texImage texture image.
187 * Free the texture image structure and the associated image data.
190 _mesa_delete_texture_image(struct gl_context
*ctx
,
191 struct gl_texture_image
*texImage
)
193 /* Free texImage->Data and/or any other driver-specific texture
196 assert(ctx
->Driver
.FreeTextureImageBuffer
);
197 ctx
->Driver
.FreeTextureImageBuffer( ctx
, texImage
);
203 * Test if a target is a proxy target.
205 * \param target texture target.
207 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
210 _mesa_is_proxy_texture(GLenum target
)
213 static const GLenum targets
[] = {
217 GL_PROXY_TEXTURE_CUBE_MAP
,
218 GL_PROXY_TEXTURE_RECTANGLE
,
219 GL_PROXY_TEXTURE_1D_ARRAY
,
220 GL_PROXY_TEXTURE_2D_ARRAY
,
221 GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
,
222 GL_PROXY_TEXTURE_2D_MULTISAMPLE
,
223 GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
226 * NUM_TEXTURE_TARGETS should match number of terms above, except there's no
227 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
229 STATIC_ASSERT(NUM_TEXTURE_TARGETS
== ARRAY_SIZE(targets
) + 2);
231 for (i
= 0; i
< ARRAY_SIZE(targets
); ++i
)
232 if (target
== targets
[i
])
239 * Test if a target is an array target.
241 * \param target texture target.
243 * \return true if the target is an array target, false otherwise.
246 _mesa_is_array_texture(GLenum target
)
249 case GL_TEXTURE_1D_ARRAY
:
250 case GL_TEXTURE_2D_ARRAY
:
251 case GL_TEXTURE_CUBE_MAP_ARRAY
:
252 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
261 * Return the proxy target which corresponds to the given texture target
264 proxy_target(GLenum target
)
268 case GL_PROXY_TEXTURE_1D
:
269 return GL_PROXY_TEXTURE_1D
;
271 case GL_PROXY_TEXTURE_2D
:
272 return GL_PROXY_TEXTURE_2D
;
274 case GL_PROXY_TEXTURE_3D
:
275 return GL_PROXY_TEXTURE_3D
;
276 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
277 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
278 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
279 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
280 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
281 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
282 case GL_TEXTURE_CUBE_MAP_ARB
:
283 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
284 return GL_PROXY_TEXTURE_CUBE_MAP_ARB
;
285 case GL_TEXTURE_RECTANGLE_NV
:
286 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
287 return GL_PROXY_TEXTURE_RECTANGLE_NV
;
288 case GL_TEXTURE_1D_ARRAY_EXT
:
289 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
290 return GL_PROXY_TEXTURE_1D_ARRAY_EXT
;
291 case GL_TEXTURE_2D_ARRAY_EXT
:
292 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
293 return GL_PROXY_TEXTURE_2D_ARRAY_EXT
;
294 case GL_TEXTURE_CUBE_MAP_ARRAY
:
295 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
296 return GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
;
297 case GL_TEXTURE_2D_MULTISAMPLE
:
298 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
299 return GL_PROXY_TEXTURE_2D_MULTISAMPLE
;
300 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
301 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
302 return GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
;
304 _mesa_problem(NULL
, "unexpected target in proxy_target()");
313 * Get a texture image pointer from a texture object, given a texture
314 * target and mipmap level. The target and level parameters should
315 * have already been error-checked.
317 * \param texObj texture unit.
318 * \param target texture target.
319 * \param level image level.
321 * \return pointer to the texture image structure, or NULL on failure.
323 struct gl_texture_image
*
324 _mesa_select_tex_image(const struct gl_texture_object
*texObj
,
325 GLenum target
, GLint level
)
327 const GLuint face
= _mesa_tex_target_to_face(target
);
331 assert(level
< MAX_TEXTURE_LEVELS
);
333 return texObj
->Image
[face
][level
];
338 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
339 * it and install it. Only return NULL if passed a bad parameter or run
342 struct gl_texture_image
*
343 _mesa_get_tex_image(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
344 GLenum target
, GLint level
)
346 struct gl_texture_image
*texImage
;
351 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
353 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
355 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "texture image allocation");
359 set_tex_image(texObj
, target
, level
, texImage
);
367 * Return pointer to the specified proxy texture image.
368 * Note that proxy textures are per-context, not per-texture unit.
369 * \return pointer to texture image or NULL if invalid target, invalid
370 * level, or out of memory.
372 static struct gl_texture_image
*
373 get_proxy_tex_image(struct gl_context
*ctx
, GLenum target
, GLint level
)
375 struct gl_texture_image
*texImage
;
382 case GL_PROXY_TEXTURE_1D
:
383 if (level
>= ctx
->Const
.MaxTextureLevels
)
385 texIndex
= TEXTURE_1D_INDEX
;
387 case GL_PROXY_TEXTURE_2D
:
388 if (level
>= ctx
->Const
.MaxTextureLevels
)
390 texIndex
= TEXTURE_2D_INDEX
;
392 case GL_PROXY_TEXTURE_3D
:
393 if (level
>= ctx
->Const
.Max3DTextureLevels
)
395 texIndex
= TEXTURE_3D_INDEX
;
397 case GL_PROXY_TEXTURE_CUBE_MAP
:
398 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
400 texIndex
= TEXTURE_CUBE_INDEX
;
402 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
405 texIndex
= TEXTURE_RECT_INDEX
;
407 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
408 if (level
>= ctx
->Const
.MaxTextureLevels
)
410 texIndex
= TEXTURE_1D_ARRAY_INDEX
;
412 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
413 if (level
>= ctx
->Const
.MaxTextureLevels
)
415 texIndex
= TEXTURE_2D_ARRAY_INDEX
;
417 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
418 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
420 texIndex
= TEXTURE_CUBE_ARRAY_INDEX
;
422 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
425 texIndex
= TEXTURE_2D_MULTISAMPLE_INDEX
;
427 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
430 texIndex
= TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
;
436 texImage
= ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
];
438 texImage
= ctx
->Driver
.NewTextureImage(ctx
);
440 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "proxy texture allocation");
443 ctx
->Texture
.ProxyTex
[texIndex
]->Image
[0][level
] = texImage
;
444 /* Set the 'back' pointer */
445 texImage
->TexObject
= ctx
->Texture
.ProxyTex
[texIndex
];
452 * Get the maximum number of allowed mipmap levels.
454 * \param ctx GL context.
455 * \param target texture target.
457 * \return the maximum number of allowed mipmap levels for the given
458 * texture target, or zero if passed a bad target.
463 _mesa_max_texture_levels(struct gl_context
*ctx
, GLenum target
)
467 case GL_PROXY_TEXTURE_1D
:
469 case GL_PROXY_TEXTURE_2D
:
470 return ctx
->Const
.MaxTextureLevels
;
472 case GL_PROXY_TEXTURE_3D
:
473 return ctx
->Const
.Max3DTextureLevels
;
474 case GL_TEXTURE_CUBE_MAP
:
475 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
476 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
477 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
478 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
479 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
480 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
481 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
482 return ctx
->Extensions
.ARB_texture_cube_map
483 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
484 case GL_TEXTURE_RECTANGLE_NV
:
485 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
486 return ctx
->Extensions
.NV_texture_rectangle
? 1 : 0;
487 case GL_TEXTURE_1D_ARRAY_EXT
:
488 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
489 case GL_TEXTURE_2D_ARRAY_EXT
:
490 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
491 return ctx
->Extensions
.EXT_texture_array
492 ? ctx
->Const
.MaxTextureLevels
: 0;
493 case GL_TEXTURE_CUBE_MAP_ARRAY
:
494 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
495 return ctx
->Extensions
.ARB_texture_cube_map_array
496 ? ctx
->Const
.MaxCubeTextureLevels
: 0;
497 case GL_TEXTURE_BUFFER
:
498 return ctx
->API
== API_OPENGL_CORE
&&
499 ctx
->Extensions
.ARB_texture_buffer_object
? 1 : 0;
500 case GL_TEXTURE_2D_MULTISAMPLE
:
501 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
502 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
503 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
504 return (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles31(ctx
))
505 && ctx
->Extensions
.ARB_texture_multisample
507 case GL_TEXTURE_EXTERNAL_OES
:
510 return 0; /* bad target */
516 * Return number of dimensions per mipmap level for the given texture target.
519 _mesa_get_texture_dimensions(GLenum target
)
523 case GL_PROXY_TEXTURE_1D
:
526 case GL_TEXTURE_RECTANGLE
:
527 case GL_TEXTURE_CUBE_MAP
:
528 case GL_PROXY_TEXTURE_2D
:
529 case GL_PROXY_TEXTURE_RECTANGLE
:
530 case GL_PROXY_TEXTURE_CUBE_MAP
:
531 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
532 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
533 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
534 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
535 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
536 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
537 case GL_TEXTURE_1D_ARRAY
:
538 case GL_PROXY_TEXTURE_1D_ARRAY
:
539 case GL_TEXTURE_EXTERNAL_OES
:
540 case GL_TEXTURE_2D_MULTISAMPLE
:
541 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
544 case GL_PROXY_TEXTURE_3D
:
545 case GL_TEXTURE_2D_ARRAY
:
546 case GL_PROXY_TEXTURE_2D_ARRAY
:
547 case GL_TEXTURE_CUBE_MAP_ARRAY
:
548 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
549 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
550 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
552 case GL_TEXTURE_BUFFER
:
555 _mesa_problem(NULL
, "invalid target 0x%x in get_texture_dimensions()",
563 * Check if a texture target can have more than one layer.
566 _mesa_tex_target_is_layered(GLenum target
)
570 case GL_PROXY_TEXTURE_1D
:
572 case GL_PROXY_TEXTURE_2D
:
573 case GL_TEXTURE_RECTANGLE
:
574 case GL_PROXY_TEXTURE_RECTANGLE
:
575 case GL_TEXTURE_2D_MULTISAMPLE
:
576 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
577 case GL_TEXTURE_BUFFER
:
578 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
579 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
580 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
581 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
582 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
583 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
584 case GL_TEXTURE_EXTERNAL_OES
:
588 case GL_PROXY_TEXTURE_3D
:
589 case GL_TEXTURE_CUBE_MAP
:
590 case GL_PROXY_TEXTURE_CUBE_MAP
:
591 case GL_TEXTURE_1D_ARRAY
:
592 case GL_PROXY_TEXTURE_1D_ARRAY
:
593 case GL_TEXTURE_2D_ARRAY
:
594 case GL_PROXY_TEXTURE_2D_ARRAY
:
595 case GL_TEXTURE_CUBE_MAP_ARRAY
:
596 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
597 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
598 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
602 assert(!"Invalid texture target.");
609 * Return the number of layers present in the given level of an array,
610 * cubemap or 3D texture. If the texture is not layered return zero.
613 _mesa_get_texture_layers(const struct gl_texture_object
*texObj
, GLint level
)
615 assert(level
>= 0 && level
< MAX_TEXTURE_LEVELS
);
617 switch (texObj
->Target
) {
620 case GL_TEXTURE_RECTANGLE
:
621 case GL_TEXTURE_2D_MULTISAMPLE
:
622 case GL_TEXTURE_BUFFER
:
623 case GL_TEXTURE_EXTERNAL_OES
:
626 case GL_TEXTURE_CUBE_MAP
:
629 case GL_TEXTURE_1D_ARRAY
: {
630 struct gl_texture_image
*img
= texObj
->Image
[0][level
];
631 return img
? img
->Height
: 0;
635 case GL_TEXTURE_2D_ARRAY
:
636 case GL_TEXTURE_CUBE_MAP_ARRAY
:
637 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
: {
638 struct gl_texture_image
*img
= texObj
->Image
[0][level
];
639 return img
? img
->Depth
: 0;
643 assert(!"Invalid texture target.");
650 * Return the maximum number of mipmap levels for the given target
651 * and the dimensions.
652 * The dimensions are expected not to include the border.
655 _mesa_get_tex_max_num_levels(GLenum target
, GLsizei width
, GLsizei height
,
662 case GL_TEXTURE_1D_ARRAY
:
663 case GL_PROXY_TEXTURE_1D
:
664 case GL_PROXY_TEXTURE_1D_ARRAY
:
667 case GL_TEXTURE_CUBE_MAP
:
668 case GL_TEXTURE_CUBE_MAP_ARRAY
:
669 case GL_PROXY_TEXTURE_CUBE_MAP
:
670 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
674 case GL_TEXTURE_2D_ARRAY
:
675 case GL_PROXY_TEXTURE_2D
:
676 case GL_PROXY_TEXTURE_2D_ARRAY
:
677 size
= MAX2(width
, height
);
680 case GL_PROXY_TEXTURE_3D
:
681 size
= MAX3(width
, height
, depth
);
683 case GL_TEXTURE_RECTANGLE
:
684 case GL_TEXTURE_EXTERNAL_OES
:
685 case GL_TEXTURE_2D_MULTISAMPLE
:
686 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
687 case GL_PROXY_TEXTURE_RECTANGLE
:
688 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
689 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
696 return _mesa_logbase2(size
) + 1;
700 #if 000 /* not used anymore */
702 * glTexImage[123]D can accept a NULL image pointer. In this case we
703 * create a texture image with unspecified image contents per the OpenGL
707 make_null_texture(GLint width
, GLint height
, GLint depth
, GLenum format
)
709 const GLint components
= _mesa_components_in_format(format
);
710 const GLint numPixels
= width
* height
* depth
;
711 GLubyte
*data
= (GLubyte
*) malloc(numPixels
* components
* sizeof(GLubyte
));
715 * Let's see if anyone finds this. If glTexImage2D() is called with
716 * a NULL image pointer then load the texture image with something
717 * interesting instead of leaving it indeterminate.
720 static const char message
[8][32] = {
724 " X X XXXX XXX XXXXX ",
727 " X X XXXXX XXX X X ",
731 GLubyte
*imgPtr
= data
;
733 for (h
= 0; h
< depth
; h
++) {
734 for (i
= 0; i
< height
; i
++) {
735 GLint srcRow
= 7 - (i
% 8);
736 for (j
= 0; j
< width
; j
++) {
737 GLint srcCol
= j
% 32;
738 GLubyte texel
= (message
[srcRow
][srcCol
]=='X') ? 255 : 70;
739 for (k
= 0; k
< components
; k
++) {
755 * Set the size and format-related fields of a gl_texture_image struct
756 * to zero. This is used when a proxy texture test fails.
759 clear_teximage_fields(struct gl_texture_image
*img
)
762 img
->_BaseFormat
= 0;
763 img
->InternalFormat
= 0;
774 img
->TexFormat
= MESA_FORMAT_NONE
;
776 img
->FixedSampleLocations
= GL_TRUE
;
781 * Initialize basic fields of the gl_texture_image struct.
783 * \param ctx GL context.
784 * \param img texture image structure to be initialized.
785 * \param width image width.
786 * \param height image height.
787 * \param depth image depth.
788 * \param border image border.
789 * \param internalFormat internal format.
790 * \param format the actual hardware format (one of MESA_FORMAT_*)
791 * \param numSamples number of samples per texel, or zero for non-MS.
792 * \param fixedSampleLocations are sample locations fixed?
794 * Fills in the fields of \p img with the given information.
795 * Note: width, height and depth include the border.
798 init_teximage_fields_ms(struct gl_context
*ctx
,
799 struct gl_texture_image
*img
,
800 GLsizei width
, GLsizei height
, GLsizei depth
,
801 GLint border
, GLenum internalFormat
,
803 GLuint numSamples
, GLboolean fixedSampleLocations
)
811 target
= img
->TexObject
->Target
;
812 img
->_BaseFormat
= _mesa_base_tex_format( ctx
, internalFormat
);
813 assert(img
->_BaseFormat
!= -1);
814 img
->InternalFormat
= internalFormat
;
815 img
->Border
= border
;
817 img
->Height
= height
;
820 img
->Width2
= width
- 2 * border
; /* == 1 << img->WidthLog2; */
821 img
->WidthLog2
= _mesa_logbase2(img
->Width2
);
824 img
->FixedSampleLocations
= GL_TRUE
;
828 case GL_TEXTURE_BUFFER
:
829 case GL_PROXY_TEXTURE_1D
:
841 case GL_TEXTURE_1D_ARRAY
:
842 case GL_PROXY_TEXTURE_1D_ARRAY
:
843 img
->Height2
= height
; /* no border */
844 img
->HeightLog2
= 0; /* not used */
852 case GL_TEXTURE_RECTANGLE
:
853 case GL_TEXTURE_CUBE_MAP
:
854 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
855 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
856 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
857 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
858 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
859 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
860 case GL_TEXTURE_EXTERNAL_OES
:
861 case GL_PROXY_TEXTURE_2D
:
862 case GL_PROXY_TEXTURE_RECTANGLE
:
863 case GL_PROXY_TEXTURE_CUBE_MAP
:
864 case GL_TEXTURE_2D_MULTISAMPLE
:
865 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
866 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
867 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
874 case GL_TEXTURE_2D_ARRAY
:
875 case GL_PROXY_TEXTURE_2D_ARRAY
:
876 case GL_TEXTURE_CUBE_MAP_ARRAY
:
877 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
878 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
879 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
880 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
881 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
882 img
->Depth2
= depth
; /* no border */
883 img
->DepthLog2
= 0; /* not used */
886 case GL_PROXY_TEXTURE_3D
:
887 img
->Height2
= height
- 2 * border
; /* == 1 << img->HeightLog2; */
888 img
->HeightLog2
= _mesa_logbase2(img
->Height2
);
889 img
->Depth2
= depth
- 2 * border
; /* == 1 << img->DepthLog2; */
890 img
->DepthLog2
= _mesa_logbase2(img
->Depth2
);
893 _mesa_problem(NULL
, "invalid target 0x%x in _mesa_init_teximage_fields()",
898 _mesa_get_tex_max_num_levels(target
,
899 img
->Width2
, img
->Height2
, img
->Depth2
);
900 img
->TexFormat
= format
;
901 img
->NumSamples
= numSamples
;
902 img
->FixedSampleLocations
= fixedSampleLocations
;
907 _mesa_init_teximage_fields(struct gl_context
*ctx
,
908 struct gl_texture_image
*img
,
909 GLsizei width
, GLsizei height
, GLsizei depth
,
910 GLint border
, GLenum internalFormat
,
913 init_teximage_fields_ms(ctx
, img
, width
, height
, depth
, border
,
914 internalFormat
, format
, 0, GL_TRUE
);
919 * Free and clear fields of the gl_texture_image struct.
921 * \param ctx GL context.
922 * \param texImage texture image structure to be cleared.
924 * After the call, \p texImage will have no data associated with it. Its
925 * fields are cleared so that its parent object will test incomplete.
928 _mesa_clear_texture_image(struct gl_context
*ctx
,
929 struct gl_texture_image
*texImage
)
931 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
932 clear_teximage_fields(texImage
);
937 * Check the width, height, depth and border of a texture image are legal.
938 * Used by all the glTexImage, glCompressedTexImage and glCopyTexImage
940 * The target and level parameters will have already been validated.
941 * \return GL_TRUE if size is OK, GL_FALSE otherwise.
944 _mesa_legal_texture_dimensions(struct gl_context
*ctx
, GLenum target
,
945 GLint level
, GLint width
, GLint height
,
946 GLint depth
, GLint border
)
952 case GL_PROXY_TEXTURE_1D
:
953 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1); /* level zero size */
954 maxSize
>>= level
; /* level size */
955 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
957 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
958 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
964 case GL_PROXY_TEXTURE_2D
:
965 case GL_TEXTURE_2D_MULTISAMPLE
:
966 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
967 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
969 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
971 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
973 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
974 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
976 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
982 case GL_PROXY_TEXTURE_3D
:
983 maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
985 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
987 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
989 if (depth
< 2 * border
|| depth
> 2 * border
+ maxSize
)
991 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
992 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
994 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
996 if (depth
> 0 && !_mesa_is_pow_two(depth
- 2 * border
))
1001 case GL_TEXTURE_RECTANGLE_NV
:
1002 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1005 maxSize
= ctx
->Const
.MaxTextureRectSize
;
1006 if (width
< 0 || width
> maxSize
)
1008 if (height
< 0 || height
> maxSize
)
1012 case GL_TEXTURE_CUBE_MAP
:
1013 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1014 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1015 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1016 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1017 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1018 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1019 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
1020 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1022 if (width
!= height
)
1024 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1026 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1028 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1029 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1031 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1036 case GL_TEXTURE_1D_ARRAY_EXT
:
1037 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1038 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1040 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1042 if (height
< 0 || height
> ctx
->Const
.MaxArrayTextureLayers
)
1044 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1045 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1050 case GL_TEXTURE_2D_ARRAY_EXT
:
1051 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1052 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1053 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1054 maxSize
= 1 << (ctx
->Const
.MaxTextureLevels
- 1);
1056 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1058 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1060 if (depth
< 0 || depth
> ctx
->Const
.MaxArrayTextureLayers
)
1062 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1063 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1065 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1070 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1071 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1072 maxSize
= 1 << (ctx
->Const
.MaxCubeTextureLevels
- 1);
1073 if (width
< 2 * border
|| width
> 2 * border
+ maxSize
)
1075 if (height
< 2 * border
|| height
> 2 * border
+ maxSize
)
1077 if (depth
< 0 || depth
> ctx
->Const
.MaxArrayTextureLayers
|| depth
% 6)
1079 if (width
!= height
)
1081 if (level
>= ctx
->Const
.MaxCubeTextureLevels
)
1083 if (!ctx
->Extensions
.ARB_texture_non_power_of_two
) {
1084 if (width
> 0 && !_mesa_is_pow_two(width
- 2 * border
))
1086 if (height
> 0 && !_mesa_is_pow_two(height
- 2 * border
))
1091 _mesa_problem(ctx
, "Invalid target in _mesa_legal_texture_dimensions()");
1098 * Do error checking of xoffset, yoffset, zoffset, width, height and depth
1099 * for glTexSubImage, glCopyTexSubImage and glCompressedTexSubImage.
1100 * \param destImage the destination texture image.
1101 * \return GL_TRUE if error found, GL_FALSE otherwise.
1104 error_check_subtexture_dimensions(struct gl_context
*ctx
, GLuint dims
,
1105 const struct gl_texture_image
*destImage
,
1106 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1107 GLsizei subWidth
, GLsizei subHeight
,
1108 GLsizei subDepth
, const char *func
)
1110 const GLenum target
= destImage
->TexObject
->Target
;
1115 _mesa_error(ctx
, GL_INVALID_VALUE
,
1116 "%s(width=%d)", func
, subWidth
);
1120 if (dims
> 1 && subHeight
< 0) {
1121 _mesa_error(ctx
, GL_INVALID_VALUE
,
1122 "%s(height=%d)", func
, subHeight
);
1126 if (dims
> 2 && subDepth
< 0) {
1127 _mesa_error(ctx
, GL_INVALID_VALUE
,
1128 "%s(depth=%d)", func
, subDepth
);
1132 /* check xoffset and width */
1133 if (xoffset
< - (GLint
) destImage
->Border
) {
1134 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(xoffset)", func
);
1138 if (xoffset
+ subWidth
> (GLint
) destImage
->Width
) {
1139 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(xoffset+width)", func
);
1143 /* check yoffset and height */
1145 GLint yBorder
= (target
== GL_TEXTURE_1D_ARRAY
) ? 0 : destImage
->Border
;
1146 if (yoffset
< -yBorder
) {
1147 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(yoffset)", func
);
1150 if (yoffset
+ subHeight
> (GLint
) destImage
->Height
) {
1151 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(yoffset+height)", func
);
1156 /* check zoffset and depth */
1159 GLint zBorder
= (target
== GL_TEXTURE_2D_ARRAY
||
1160 target
== GL_TEXTURE_CUBE_MAP_ARRAY
) ?
1161 0 : destImage
->Border
;
1163 if (zoffset
< -zBorder
) {
1164 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(zoffset)", func
);
1168 depth
= (GLint
) destImage
->Depth
;
1169 if (target
== GL_TEXTURE_CUBE_MAP
)
1171 if (zoffset
+ subDepth
> depth
) {
1172 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(zoffset+depth)", func
);
1178 * The OpenGL spec (and GL_ARB_texture_compression) says only whole
1179 * compressed texture images can be updated. But, that restriction may be
1180 * relaxed for particular compressed formats. At this time, all the
1181 * compressed formats supported by Mesa allow sub-textures to be updated
1182 * along compressed block boundaries.
1184 _mesa_get_format_block_size(destImage
->TexFormat
, &bw
, &bh
);
1186 if (bw
!= 1 || bh
!= 1) {
1187 /* offset must be multiple of block size */
1188 if ((xoffset
% bw
!= 0) || (yoffset
% bh
!= 0)) {
1189 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1190 "%s(xoffset = %d, yoffset = %d)",
1191 func
, xoffset
, yoffset
);
1195 /* The size must be a multiple of bw x bh, or we must be using a
1196 * offset+size that exactly hits the edge of the image. This
1197 * is important for small mipmap levels (1x1, 2x1, etc) and for
1200 if ((subWidth
% bw
!= 0) &&
1201 (xoffset
+ subWidth
!= (GLint
) destImage
->Width
)) {
1202 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1203 "%s(width = %d)", func
, subWidth
);
1207 if ((subHeight
% bh
!= 0) &&
1208 (yoffset
+ subHeight
!= (GLint
) destImage
->Height
)) {
1209 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1210 "%s(height = %d)", func
, subHeight
);
1222 * This is the fallback for Driver.TestProxyTexImage() for doing device-
1223 * specific texture image size checks.
1225 * A hardware driver might override this function if, for example, the
1226 * max 3D texture size is 512x512x64 (i.e. not a cube).
1228 * Note that width, height, depth == 0 is not an error. However, a
1229 * texture with zero width/height/depth will be considered "incomplete"
1230 * and texturing will effectively be disabled.
1232 * \param target any texture target/type
1233 * \param level as passed to glTexImage
1234 * \param format the MESA_FORMAT_x for the tex image
1235 * \param width as passed to glTexImage
1236 * \param height as passed to glTexImage
1237 * \param depth as passed to glTexImage
1238 * \param border as passed to glTexImage
1239 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1242 _mesa_test_proxy_teximage(struct gl_context
*ctx
, GLenum target
, GLint level
,
1244 GLint width
, GLint height
, GLint depth
, GLint border
)
1246 /* We just check if the image size is less than MaxTextureMbytes.
1247 * Some drivers may do more specific checks.
1249 uint64_t bytes
= _mesa_format_image_size64(format
, width
, height
, depth
);
1250 uint64_t mbytes
= bytes
/ (1024 * 1024); /* convert to MB */
1251 mbytes
*= _mesa_num_tex_faces(target
);
1252 return mbytes
<= (uint64_t) ctx
->Const
.MaxTextureMbytes
;
1257 * Return true if the format is only valid for glCompressedTexImage.
1260 compressedteximage_only_format(const struct gl_context
*ctx
, GLenum format
)
1263 case GL_ETC1_RGB8_OES
:
1264 case GL_PALETTE4_RGB8_OES
:
1265 case GL_PALETTE4_RGBA8_OES
:
1266 case GL_PALETTE4_R5_G6_B5_OES
:
1267 case GL_PALETTE4_RGBA4_OES
:
1268 case GL_PALETTE4_RGB5_A1_OES
:
1269 case GL_PALETTE8_RGB8_OES
:
1270 case GL_PALETTE8_RGBA8_OES
:
1271 case GL_PALETTE8_R5_G6_B5_OES
:
1272 case GL_PALETTE8_RGBA4_OES
:
1273 case GL_PALETTE8_RGB5_A1_OES
:
1281 * Return true if the format doesn't support online compression.
1284 _mesa_format_no_online_compression(const struct gl_context
*ctx
, GLenum format
)
1286 return _mesa_is_astc_format(format
) ||
1287 compressedteximage_only_format(ctx
, format
);
1290 /* Writes to an GL error pointer if non-null and returns whether or not the
1291 * error is GL_NO_ERROR */
1293 write_error(GLenum
*err_ptr
, GLenum error
)
1298 return error
== GL_NO_ERROR
;
1302 * Helper function to determine whether a target and specific compression
1303 * format are supported. The error parameter returns GL_NO_ERROR if the
1304 * target can be compressed. Otherwise it returns either GL_INVALID_OPERATION
1305 * or GL_INVALID_ENUM, whichever is more appropriate.
1308 _mesa_target_can_be_compressed(const struct gl_context
*ctx
, GLenum target
,
1309 GLenum intFormat
, GLenum
*error
)
1311 GLboolean target_can_be_compresed
= GL_FALSE
;
1312 mesa_format format
= _mesa_glenum_to_compressed_format(intFormat
);
1313 enum mesa_format_layout layout
= _mesa_get_format_layout(format
);
1317 case GL_PROXY_TEXTURE_2D
:
1318 target_can_be_compresed
= GL_TRUE
; /* true for any compressed format so far */
1320 case GL_PROXY_TEXTURE_CUBE_MAP
:
1321 case GL_TEXTURE_CUBE_MAP
:
1322 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1323 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1324 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1325 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1326 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1327 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1328 target_can_be_compresed
= ctx
->Extensions
.ARB_texture_cube_map
;
1330 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1331 case GL_TEXTURE_2D_ARRAY_EXT
:
1332 target_can_be_compresed
= ctx
->Extensions
.EXT_texture_array
;
1334 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1335 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1336 /* From section 3.8.6, page 146 of OpenGL ES 3.0 spec:
1338 * "The ETC2/EAC texture compression algorithm supports only
1339 * two-dimensional images. If internalformat is an ETC2/EAC format,
1340 * glCompressedTexImage3D will generate an INVALID_OPERATION error if
1341 * target is not TEXTURE_2D_ARRAY."
1343 * This should also be applicable for glTexStorage3D(). Other available
1344 * targets for these functions are: TEXTURE_3D and TEXTURE_CUBE_MAP_ARRAY.
1346 if (layout
== MESA_FORMAT_LAYOUT_ETC2
&& _mesa_is_gles3(ctx
))
1347 return write_error(error
, GL_INVALID_OPERATION
);
1349 target_can_be_compresed
= ctx
->Extensions
.ARB_texture_cube_map_array
;
1351 /* From the KHR_texture_compression_astc_hdr spec:
1353 * Add a second new column "3D Tex." which is empty for all non-ASTC
1354 * formats. If only the LDR profile is supported by the
1355 * implementation, this column is also empty for all ASTC formats. If
1356 * both the LDR and HDR profiles are supported only, this column is
1357 * checked for all ASTC formats.
1359 * Add a third new column "Cube Map Array Tex." which is empty for all
1360 * non-ASTC formats, and checked for all ASTC formats.
1364 * 'An INVALID_OPERATION error is generated by CompressedTexImage3D
1365 * if <internalformat> is TEXTURE_CUBE_MAP_ARRAY and the
1366 * "Cube Map Array" column of table 8.19 is *not* checked, or if
1367 * <internalformat> is TEXTURE_3D and the "3D Tex." column of table
1368 * 8.19 is *not* checked'
1370 * The instances of <internalformat> above should say <target>.
1373 /* Throw an INVALID_OPERATION error if the target is
1374 * TEXTURE_CUBE_MAP_ARRAY and the format is not ASTC.
1376 if (target_can_be_compresed
&&
1377 ctx
->Extensions
.KHR_texture_compression_astc_ldr
&&
1378 layout
!= MESA_FORMAT_LAYOUT_ASTC
)
1379 return write_error(error
, GL_INVALID_OPERATION
);
1384 case MESA_FORMAT_LAYOUT_ETC2
:
1385 /* See ETC2/EAC comment in case GL_TEXTURE_CUBE_MAP_ARRAY. */
1386 if (_mesa_is_gles3(ctx
))
1387 return write_error(error
, GL_INVALID_OPERATION
);
1389 case MESA_FORMAT_LAYOUT_BPTC
:
1390 target_can_be_compresed
= ctx
->Extensions
.ARB_texture_compression_bptc
;
1392 case MESA_FORMAT_LAYOUT_ASTC
:
1393 target_can_be_compresed
=
1394 ctx
->Extensions
.KHR_texture_compression_astc_hdr
;
1396 /* Throw an INVALID_OPERATION error if the target is TEXTURE_3D and
1397 * and the hdr extension is not supported.
1398 * See comment in switch case GL_TEXTURE_CUBE_MAP_ARRAY for more info.
1400 if (!target_can_be_compresed
)
1401 return write_error(error
, GL_INVALID_OPERATION
);
1404 /* Throw an INVALID_OPERATION error if the target is TEXTURE_3D and
1405 * the format is not ASTC.
1406 * See comment in switch case GL_TEXTURE_CUBE_MAP_ARRAY for more info.
1408 if (ctx
->Extensions
.KHR_texture_compression_astc_ldr
)
1409 return write_error(error
, GL_INVALID_OPERATION
);
1415 return write_error(error
,
1416 target_can_be_compresed
? GL_NO_ERROR
: GL_INVALID_ENUM
);
1421 * Check if the given texture target value is legal for a
1422 * glTexImage1/2/3D call.
1425 legal_teximage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
)
1431 case GL_PROXY_TEXTURE_1D
:
1432 return _mesa_is_desktop_gl(ctx
);
1440 case GL_PROXY_TEXTURE_2D
:
1441 return _mesa_is_desktop_gl(ctx
);
1442 case GL_PROXY_TEXTURE_CUBE_MAP
:
1443 return _mesa_is_desktop_gl(ctx
)
1444 && ctx
->Extensions
.ARB_texture_cube_map
;
1445 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1446 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1447 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1448 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1449 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1450 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1451 return ctx
->Extensions
.ARB_texture_cube_map
;
1452 case GL_TEXTURE_RECTANGLE_NV
:
1453 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
1454 return _mesa_is_desktop_gl(ctx
)
1455 && ctx
->Extensions
.NV_texture_rectangle
;
1456 case GL_TEXTURE_1D_ARRAY_EXT
:
1457 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
1458 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
;
1466 case GL_PROXY_TEXTURE_3D
:
1467 return _mesa_is_desktop_gl(ctx
);
1468 case GL_TEXTURE_2D_ARRAY_EXT
:
1469 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1470 || _mesa_is_gles3(ctx
);
1471 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
1472 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
;
1473 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1474 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1475 return ctx
->Extensions
.ARB_texture_cube_map_array
;
1480 _mesa_problem(ctx
, "invalid dims=%u in legal_teximage_target()", dims
);
1487 * Check if the given texture target value is legal for a
1488 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1489 * The difference compared to legal_teximage_target() above is that
1490 * proxy targets are not supported.
1493 legal_texsubimage_target(struct gl_context
*ctx
, GLuint dims
, GLenum target
,
1498 return _mesa_is_desktop_gl(ctx
) && target
== GL_TEXTURE_1D
;
1503 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
1504 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
1505 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
1506 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
1507 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
1508 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
1509 return ctx
->Extensions
.ARB_texture_cube_map
;
1510 case GL_TEXTURE_RECTANGLE_NV
:
1511 return _mesa_is_desktop_gl(ctx
)
1512 && ctx
->Extensions
.NV_texture_rectangle
;
1513 case GL_TEXTURE_1D_ARRAY_EXT
:
1514 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
;
1522 case GL_TEXTURE_2D_ARRAY_EXT
:
1523 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1524 || _mesa_is_gles3(ctx
);
1525 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1526 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
1527 return ctx
->Extensions
.ARB_texture_cube_map_array
;
1529 /* Table 8.15 of the OpenGL 4.5 core profile spec
1530 * (20141030) says that TEXTURE_CUBE_MAP is valid for TextureSubImage3D
1531 * and CopyTextureSubImage3D.
1533 case GL_TEXTURE_CUBE_MAP
:
1539 _mesa_problem(ctx
, "invalid dims=%u in legal_texsubimage_target()",
1547 * Helper function to determine if a texture object is mutable (in terms
1548 * of GL_ARB_texture_storage).
1551 mutable_tex_object(struct gl_context
*ctx
, GLenum target
)
1553 struct gl_texture_object
*texObj
= _mesa_get_current_tex_object(ctx
, target
);
1557 return !texObj
->Immutable
;
1562 * Return expected size of a compressed texture.
1565 compressed_tex_size(GLsizei width
, GLsizei height
, GLsizei depth
,
1568 mesa_format mesaFormat
= _mesa_glenum_to_compressed_format(glformat
);
1569 return _mesa_format_image_size(mesaFormat
, width
, height
, depth
);
1573 * Verify that a texture format is valid with a particular target
1575 * In particular, textures with base format of \c GL_DEPTH_COMPONENT or
1576 * \c GL_DEPTH_STENCIL are only valid with certain, context dependent texture
1579 * \param ctx GL context
1580 * \param target Texture target
1581 * \param internalFormat Internal format of the texture image
1582 * \param dimensions Dimensionality at the caller. This is \b not used
1583 * in the validation. It is only used when logging
1585 * \param caller Base name of the calling function (e.g.,
1586 * "glTexImage" or "glTexStorage").
1588 * \returns true if the combination is legal, false otherwise.
1591 _mesa_legal_texture_base_format_for_target(struct gl_context
*ctx
,
1592 GLenum target
, GLenum internalFormat
,
1593 unsigned dimensions
,
1596 if (_mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_COMPONENT
1597 || _mesa_base_tex_format(ctx
, internalFormat
) == GL_DEPTH_STENCIL
1598 || _mesa_base_tex_format(ctx
, internalFormat
) == GL_STENCIL_INDEX
) {
1599 /* Section 3.8.3 (Texture Image Specification) of the OpenGL 3.3 Core
1600 * Profile spec says:
1602 * "Textures with a base internal format of DEPTH_COMPONENT or
1603 * DEPTH_STENCIL are supported by texture image specification
1604 * commands only if target is TEXTURE_1D, TEXTURE_2D,
1605 * TEXTURE_1D_ARRAY, TEXTURE_2D_ARRAY, TEXTURE_RECTANGLE,
1606 * TEXTURE_CUBE_MAP, PROXY_TEXTURE_1D, PROXY_TEXTURE_2D,
1607 * PROXY_TEXTURE_1D_ARRAY, PROXY_TEXTURE_2D_ARRAY,
1608 * PROXY_TEXTURE_RECTANGLE, or PROXY_TEXTURE_CUBE_MAP. Using these
1609 * formats in conjunction with any other target will result in an
1610 * INVALID_OPERATION error."
1612 * Cubemaps are only supported with desktop OpenGL version >= 3.0,
1613 * EXT_gpu_shader4, or, on OpenGL ES 2.0+, OES_depth_texture_cube_map.
1615 if (target
!= GL_TEXTURE_1D
&&
1616 target
!= GL_PROXY_TEXTURE_1D
&&
1617 target
!= GL_TEXTURE_2D
&&
1618 target
!= GL_PROXY_TEXTURE_2D
&&
1619 target
!= GL_TEXTURE_1D_ARRAY
&&
1620 target
!= GL_PROXY_TEXTURE_1D_ARRAY
&&
1621 target
!= GL_TEXTURE_2D_ARRAY
&&
1622 target
!= GL_PROXY_TEXTURE_2D_ARRAY
&&
1623 target
!= GL_TEXTURE_RECTANGLE_ARB
&&
1624 target
!= GL_PROXY_TEXTURE_RECTANGLE_ARB
&&
1625 !((_mesa_is_cube_face(target
) ||
1626 target
== GL_TEXTURE_CUBE_MAP
||
1627 target
== GL_PROXY_TEXTURE_CUBE_MAP
) &&
1628 (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_gpu_shader4
1629 || (ctx
->API
== API_OPENGLES2
&& ctx
->Extensions
.OES_depth_texture_cube_map
))) &&
1630 !((target
== GL_TEXTURE_CUBE_MAP_ARRAY
||
1631 target
== GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
) &&
1632 ctx
->Extensions
.ARB_texture_cube_map_array
)) {
1633 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1634 "%s%dD(bad target for depth texture)",
1635 caller
, dimensions
);
1644 texture_formats_agree(GLenum internalFormat
,
1647 GLboolean colorFormat
;
1648 GLboolean is_format_depth_or_depthstencil
;
1649 GLboolean is_internalFormat_depth_or_depthstencil
;
1651 /* Even though there are no color-index textures, we still have to support
1652 * uploading color-index data and remapping it to RGB via the
1653 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1655 const GLboolean indexFormat
= (format
== GL_COLOR_INDEX
);
1657 is_internalFormat_depth_or_depthstencil
=
1658 _mesa_is_depth_format(internalFormat
) ||
1659 _mesa_is_depthstencil_format(internalFormat
);
1661 is_format_depth_or_depthstencil
=
1662 _mesa_is_depth_format(format
) ||
1663 _mesa_is_depthstencil_format(format
);
1665 colorFormat
= _mesa_is_color_format(format
);
1667 if (_mesa_is_color_format(internalFormat
) && !colorFormat
&& !indexFormat
)
1670 if (is_internalFormat_depth_or_depthstencil
!=
1671 is_format_depth_or_depthstencil
)
1674 if (_mesa_is_ycbcr_format(internalFormat
) != _mesa_is_ycbcr_format(format
))
1681 * Test the combination of format, type and internal format arguments of
1682 * different texture operations on GLES.
1684 * \param ctx GL context.
1685 * \param format pixel data format given by the user.
1686 * \param type pixel data type given by the user.
1687 * \param internalFormat internal format given by the user.
1688 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1689 * \param callerName name of the caller function to print in the error message
1691 * \return true if a error is found, false otherwise
1693 * Currently, it is used by texture_error_check() and texsubimage_error_check().
1696 texture_format_error_check_gles(struct gl_context
*ctx
, GLenum format
,
1697 GLenum type
, GLenum internalFormat
,
1698 GLuint dimensions
, const char *callerName
)
1702 if (_mesa_is_gles3(ctx
)) {
1703 err
= _mesa_es3_error_check_format_and_type(ctx
, format
, type
,
1705 if (err
!= GL_NO_ERROR
) {
1706 _mesa_error(ctx
, err
,
1707 "%s(format = %s, type = %s, internalformat = %s)",
1708 callerName
, _mesa_enum_to_string(format
),
1709 _mesa_enum_to_string(type
),
1710 _mesa_enum_to_string(internalFormat
));
1715 err
= _mesa_es_error_check_format_and_type(format
, type
, dimensions
);
1716 if (err
!= GL_NO_ERROR
) {
1717 _mesa_error(ctx
, err
, "%s(format = %s, type = %s)",
1718 callerName
, _mesa_enum_to_string(format
),
1719 _mesa_enum_to_string(type
));
1728 * Test the glTexImage[123]D() parameters for errors.
1730 * \param ctx GL context.
1731 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1732 * \param target texture target given by the user (already validated).
1733 * \param level image level given by the user.
1734 * \param internalFormat internal format given by the user.
1735 * \param format pixel data format given by the user.
1736 * \param type pixel data type given by the user.
1737 * \param width image width given by the user.
1738 * \param height image height given by the user.
1739 * \param depth image depth given by the user.
1740 * \param border image border given by the user.
1742 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1744 * Verifies each of the parameters against the constants specified in
1745 * __struct gl_contextRec::Const and the supported extensions, and according
1746 * to the OpenGL specification.
1747 * Note that we don't fully error-check the width, height, depth values
1748 * here. That's done in _mesa_legal_texture_dimensions() which is used
1749 * by several other GL entrypoints. Plus, texture dims have a special
1750 * interaction with proxy textures.
1753 texture_error_check( struct gl_context
*ctx
,
1754 GLuint dimensions
, GLenum target
,
1755 GLint level
, GLint internalFormat
,
1756 GLenum format
, GLenum type
,
1757 GLint width
, GLint height
,
1758 GLint depth
, GLint border
,
1759 const GLvoid
*pixels
)
1763 /* Note: for proxy textures, some error conditions immediately generate
1764 * a GL error in the usual way. But others do not generate a GL error.
1765 * Instead, they cause the width, height, depth, format fields of the
1766 * texture image to be zeroed-out. The GL spec seems to indicate that the
1767 * zero-out behaviour is only used in cases related to memory allocation.
1771 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
1772 _mesa_error(ctx
, GL_INVALID_VALUE
,
1773 "glTexImage%dD(level=%d)", dimensions
, level
);
1778 if (border
< 0 || border
> 1 ||
1779 ((ctx
->API
!= API_OPENGL_COMPAT
||
1780 target
== GL_TEXTURE_RECTANGLE_NV
||
1781 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
1782 _mesa_error(ctx
, GL_INVALID_VALUE
,
1783 "glTexImage%dD(border=%d)", dimensions
, border
);
1787 if (width
< 0 || height
< 0 || depth
< 0) {
1788 _mesa_error(ctx
, GL_INVALID_VALUE
,
1789 "glTexImage%dD(width, height or depth < 0)", dimensions
);
1793 /* Check incoming image format and type */
1794 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
1795 if (err
!= GL_NO_ERROR
) {
1796 /* Prior to OpenGL-ES 2.0, an INVALID_VALUE is expected instead of
1797 * INVALID_ENUM. From page 73 OpenGL ES 1.1 spec:
1799 * "Specifying a value for internalformat that is not one of the
1800 * above (acceptable) values generates the error INVALID VALUE."
1802 if (err
== GL_INVALID_ENUM
&& _mesa_is_gles(ctx
) && ctx
->Version
< 20)
1803 err
= GL_INVALID_VALUE
;
1805 _mesa_error(ctx
, err
,
1806 "glTexImage%dD(incompatible format = %s, type = %s)",
1807 dimensions
, _mesa_enum_to_string(format
),
1808 _mesa_enum_to_string(type
));
1812 /* Check internalFormat */
1813 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
1814 _mesa_error(ctx
, GL_INVALID_VALUE
,
1815 "glTexImage%dD(internalFormat=%s)",
1816 dimensions
, _mesa_enum_to_string(internalFormat
));
1820 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1821 * combinations of format, internalFormat, and type that can be used.
1822 * Formats and types that require additional extensions (e.g., GL_FLOAT
1823 * requires GL_OES_texture_float) are filtered elsewhere.
1825 if (_mesa_is_gles(ctx
) &&
1826 texture_format_error_check_gles(ctx
, format
, type
, internalFormat
,
1827 dimensions
, "glTexImage%dD")) {
1831 /* validate the bound PBO, if any */
1832 if (!_mesa_validate_pbo_source(ctx
, dimensions
, &ctx
->Unpack
,
1833 width
, height
, depth
, format
, type
,
1834 INT_MAX
, pixels
, "glTexImage")) {
1838 /* make sure internal format and format basically agree */
1839 if (!texture_formats_agree(internalFormat
, format
)) {
1840 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1841 "glTexImage%dD(incompatible internalFormat = %s, format = %s)",
1842 dimensions
, _mesa_enum_to_string(internalFormat
),
1843 _mesa_enum_to_string(format
));
1847 /* additional checks for ycbcr textures */
1848 if (internalFormat
== GL_YCBCR_MESA
) {
1849 assert(ctx
->Extensions
.MESA_ycbcr_texture
);
1850 if (type
!= GL_UNSIGNED_SHORT_8_8_MESA
&&
1851 type
!= GL_UNSIGNED_SHORT_8_8_REV_MESA
) {
1853 _mesa_snprintf(message
, sizeof(message
),
1854 "glTexImage%dD(format/type YCBCR mismatch)",
1856 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s", message
);
1857 return GL_TRUE
; /* error */
1859 if (target
!= GL_TEXTURE_2D
&&
1860 target
!= GL_PROXY_TEXTURE_2D
&&
1861 target
!= GL_TEXTURE_RECTANGLE_NV
&&
1862 target
!= GL_PROXY_TEXTURE_RECTANGLE_NV
) {
1863 _mesa_error(ctx
, GL_INVALID_ENUM
,
1864 "glTexImage%dD(bad target for YCbCr texture)",
1870 _mesa_snprintf(message
, sizeof(message
),
1871 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1872 dimensions
, border
);
1873 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", message
);
1878 /* additional checks for depth textures */
1879 if (!_mesa_legal_texture_base_format_for_target(ctx
, target
, internalFormat
,
1880 dimensions
, "glTexImage"))
1883 /* additional checks for compressed textures */
1884 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
1886 if (!_mesa_target_can_be_compressed(ctx
, target
, internalFormat
, &err
)) {
1887 _mesa_error(ctx
, err
,
1888 "glTexImage%dD(target can't be compressed)", dimensions
);
1891 if (_mesa_format_no_online_compression(ctx
, internalFormat
)) {
1892 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1893 "glTexImage%dD(no compression for format)", dimensions
);
1897 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1898 "glTexImage%dD(border!=0)", dimensions
);
1903 /* additional checks for integer textures */
1904 if ((ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) &&
1905 (_mesa_is_enum_format_integer(format
) !=
1906 _mesa_is_enum_format_integer(internalFormat
))) {
1907 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1908 "glTexImage%dD(integer/non-integer format mismatch)",
1913 if (!mutable_tex_object(ctx
, target
)) {
1914 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1915 "glTexImage%dD(immutable texture)", dimensions
);
1919 /* if we get here, the parameters are OK */
1925 * Error checking for glCompressedTexImage[123]D().
1926 * Note that the width, height and depth values are not fully error checked
1928 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1931 compressed_texture_error_check(struct gl_context
*ctx
, GLint dimensions
,
1932 GLenum target
, GLint level
,
1933 GLenum internalFormat
, GLsizei width
,
1934 GLsizei height
, GLsizei depth
, GLint border
,
1935 GLsizei imageSize
, const GLvoid
*data
)
1937 const GLint maxLevels
= _mesa_max_texture_levels(ctx
, target
);
1939 GLenum error
= GL_NO_ERROR
;
1940 char *reason
= ""; /* no error */
1942 if (!_mesa_target_can_be_compressed(ctx
, target
, internalFormat
, &error
)) {
1947 /* This will detect any invalid internalFormat value */
1948 if (!_mesa_is_compressed_format(ctx
, internalFormat
)) {
1949 _mesa_error(ctx
, GL_INVALID_ENUM
,
1950 "glCompressedTexImage%dD(internalFormat=%s)",
1951 dimensions
, _mesa_enum_to_string(internalFormat
));
1955 /* validate the bound PBO, if any */
1956 if (!_mesa_validate_pbo_source_compressed(ctx
, dimensions
, &ctx
->Unpack
,
1958 "glCompressedTexImage")) {
1962 switch (internalFormat
) {
1963 case GL_PALETTE4_RGB8_OES
:
1964 case GL_PALETTE4_RGBA8_OES
:
1965 case GL_PALETTE4_R5_G6_B5_OES
:
1966 case GL_PALETTE4_RGBA4_OES
:
1967 case GL_PALETTE4_RGB5_A1_OES
:
1968 case GL_PALETTE8_RGB8_OES
:
1969 case GL_PALETTE8_RGBA8_OES
:
1970 case GL_PALETTE8_R5_G6_B5_OES
:
1971 case GL_PALETTE8_RGBA4_OES
:
1972 case GL_PALETTE8_RGB5_A1_OES
:
1973 /* check level (note that level should be zero or less!) */
1974 if (level
> 0 || level
< -maxLevels
) {
1976 error
= GL_INVALID_VALUE
;
1980 if (dimensions
!= 2) {
1981 reason
= "compressed paletted textures must be 2D";
1982 error
= GL_INVALID_OPERATION
;
1986 /* Figure out the expected texture size (in bytes). This will be
1987 * checked against the actual size later.
1989 expectedSize
= _mesa_cpal_compressed_size(level
, internalFormat
,
1992 /* This is for the benefit of the TestProxyTexImage below. It expects
1993 * level to be non-negative. OES_compressed_paletted_texture uses a
1994 * weird mechanism where the level specified to glCompressedTexImage2D
1995 * is -(n-1) number of levels in the texture, and the data specifies the
1996 * complete mipmap stack. This is done to ensure the palette is the
1997 * same for all levels.
2004 if (level
< 0 || level
>= maxLevels
) {
2006 error
= GL_INVALID_VALUE
;
2010 /* Figure out the expected texture size (in bytes). This will be
2011 * checked against the actual size later.
2013 expectedSize
= compressed_tex_size(width
, height
, depth
, internalFormat
);
2017 /* This should really never fail */
2018 if (_mesa_base_tex_format(ctx
, internalFormat
) < 0) {
2019 reason
= "internalFormat";
2020 error
= GL_INVALID_ENUM
;
2024 /* No compressed formats support borders at this time */
2026 reason
= "border != 0";
2027 error
= GL_INVALID_VALUE
;
2031 /* Check for invalid pixel storage modes */
2032 if (!_mesa_compressed_pixel_storage_error_check(ctx
, dimensions
,
2034 "glCompressedTexImage")) {
2038 /* check image size in bytes */
2039 if (expectedSize
!= imageSize
) {
2040 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
2041 * if <imageSize> is not consistent with the format, dimensions, and
2042 * contents of the specified image.
2044 reason
= "imageSize inconsistant with width/height/format";
2045 error
= GL_INVALID_VALUE
;
2049 if (!mutable_tex_object(ctx
, target
)) {
2050 reason
= "immutable texture";
2051 error
= GL_INVALID_OPERATION
;
2058 /* Note: not all error paths exit through here. */
2059 _mesa_error(ctx
, error
, "glCompressedTexImage%dD(%s)",
2060 dimensions
, reason
);
2067 * Test glTexSubImage[123]D() parameters for errors.
2069 * \param ctx GL context.
2070 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2071 * \param target texture target given by the user (already validated)
2072 * \param level image level given by the user.
2073 * \param xoffset sub-image x offset given by the user.
2074 * \param yoffset sub-image y offset given by the user.
2075 * \param zoffset sub-image z offset given by the user.
2076 * \param format pixel data format given by the user.
2077 * \param type pixel data type given by the user.
2078 * \param width image width given by the user.
2079 * \param height image height given by the user.
2080 * \param depth image depth given by the user.
2082 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2084 * Verifies each of the parameters against the constants specified in
2085 * __struct gl_contextRec::Const and the supported extensions, and according
2086 * to the OpenGL specification.
2089 texsubimage_error_check(struct gl_context
*ctx
, GLuint dimensions
,
2090 struct gl_texture_object
*texObj
,
2091 GLenum target
, GLint level
,
2092 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2093 GLint width
, GLint height
, GLint depth
,
2094 GLenum format
, GLenum type
, const GLvoid
*pixels
,
2095 bool dsa
, const char *callerName
)
2097 struct gl_texture_image
*texImage
;
2101 /* must be out of memory */
2102 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s()", callerName
);
2107 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2108 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level=%d)", callerName
, level
);
2112 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
2114 /* non-existant texture level */
2115 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid texture image)",
2120 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
2121 if (err
!= GL_NO_ERROR
) {
2122 _mesa_error(ctx
, err
,
2123 "%s(incompatible format = %s, type = %s)",
2124 callerName
, _mesa_enum_to_string(format
),
2125 _mesa_enum_to_string(type
));
2129 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2130 * combinations of format, internalFormat, and type that can be used.
2131 * Formats and types that require additional extensions (e.g., GL_FLOAT
2132 * requires GL_OES_texture_float) are filtered elsewhere.
2134 if (_mesa_is_gles(ctx
) &&
2135 texture_format_error_check_gles(ctx
, format
, type
,
2136 texImage
->InternalFormat
,
2137 dimensions
, callerName
)) {
2141 /* validate the bound PBO, if any */
2142 if (!_mesa_validate_pbo_source(ctx
, dimensions
, &ctx
->Unpack
,
2143 width
, height
, depth
, format
, type
,
2144 INT_MAX
, pixels
, callerName
)) {
2148 if (error_check_subtexture_dimensions(ctx
, dimensions
,
2149 texImage
, xoffset
, yoffset
, zoffset
,
2150 width
, height
, depth
, callerName
)) {
2154 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
2155 if (_mesa_format_no_online_compression(ctx
, texImage
->InternalFormat
)) {
2156 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2157 "%s(no compression for format)", callerName
);
2162 if (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) {
2163 /* both source and dest must be integer-valued, or neither */
2164 if (_mesa_is_format_integer_color(texImage
->TexFormat
) !=
2165 _mesa_is_enum_format_integer(format
)) {
2166 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2167 "%s(integer/non-integer format mismatch)", callerName
);
2177 * Test glCopyTexImage[12]D() parameters for errors.
2179 * \param ctx GL context.
2180 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2181 * \param target texture target given by the user.
2182 * \param level image level given by the user.
2183 * \param internalFormat internal format given by the user.
2184 * \param width image width given by the user.
2185 * \param height image height given by the user.
2186 * \param border texture border.
2188 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2190 * Verifies each of the parameters against the constants specified in
2191 * __struct gl_contextRec::Const and the supported extensions, and according
2192 * to the OpenGL specification.
2195 copytexture_error_check( struct gl_context
*ctx
, GLuint dimensions
,
2196 GLenum target
, GLint level
, GLint internalFormat
,
2197 GLint width
, GLint height
, GLint border
)
2200 GLint rb_base_format
;
2201 struct gl_renderbuffer
*rb
;
2202 GLenum rb_internal_format
;
2205 if (!legal_texsubimage_target(ctx
, dimensions
, target
, false)) {
2206 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCopyTexImage%uD(target=%s)",
2207 dimensions
, _mesa_enum_to_string(target
));
2212 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2213 _mesa_error(ctx
, GL_INVALID_VALUE
,
2214 "glCopyTexImage%dD(level=%d)", dimensions
, level
);
2218 /* Check that the source buffer is complete */
2219 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2220 if (ctx
->ReadBuffer
->_Status
== 0) {
2221 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2223 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2224 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2225 "glCopyTexImage%dD(invalid readbuffer)", dimensions
);
2229 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2230 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2231 "glCopyTexImage%dD(multisample FBO)", dimensions
);
2237 if (border
< 0 || border
> 1 ||
2238 ((ctx
->API
!= API_OPENGL_COMPAT
||
2239 target
== GL_TEXTURE_RECTANGLE_NV
||
2240 target
== GL_PROXY_TEXTURE_RECTANGLE_NV
) && border
!= 0)) {
2241 _mesa_error(ctx
, GL_INVALID_VALUE
,
2242 "glCopyTexImage%dD(border=%d)", dimensions
, border
);
2246 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2249 if (_mesa_is_gles(ctx
) && !_mesa_is_gles3(ctx
)) {
2250 switch (internalFormat
) {
2255 case GL_LUMINANCE_ALPHA
:
2258 _mesa_error(ctx
, GL_INVALID_ENUM
,
2259 "glCopyTexImage%dD(internalFormat=%s)", dimensions
,
2260 _mesa_enum_to_string(internalFormat
));
2265 baseFormat
= _mesa_base_tex_format(ctx
, internalFormat
);
2266 if (baseFormat
< 0) {
2267 _mesa_error(ctx
, GL_INVALID_ENUM
,
2268 "glCopyTexImage%dD(internalFormat=%s)", dimensions
,
2269 _mesa_enum_to_string(internalFormat
));
2273 rb
= _mesa_get_read_renderbuffer_for_format(ctx
, internalFormat
);
2275 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2276 "glCopyTexImage%dD(read buffer)", dimensions
);
2280 rb_internal_format
= rb
->InternalFormat
;
2281 rb_base_format
= _mesa_base_tex_format(ctx
, rb
->InternalFormat
);
2282 if (_mesa_is_color_format(internalFormat
)) {
2283 if (rb_base_format
< 0) {
2284 _mesa_error(ctx
, GL_INVALID_VALUE
,
2285 "glCopyTexImage%dD(internalFormat=%s)", dimensions
,
2286 _mesa_enum_to_string(internalFormat
));
2291 if (_mesa_is_gles(ctx
)) {
2293 if (_mesa_base_format_component_count(baseFormat
) >
2294 _mesa_base_format_component_count(rb_base_format
)) {
2297 if (baseFormat
== GL_DEPTH_COMPONENT
||
2298 baseFormat
== GL_DEPTH_STENCIL
||
2299 rb_base_format
== GL_DEPTH_COMPONENT
||
2300 rb_base_format
== GL_DEPTH_STENCIL
||
2301 ((baseFormat
== GL_LUMINANCE_ALPHA
||
2302 baseFormat
== GL_ALPHA
) &&
2303 rb_base_format
!= GL_RGBA
) ||
2304 internalFormat
== GL_RGB9_E5
) {
2307 if (internalFormat
== GL_RGB9_E5
) {
2311 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2312 "glCopyTexImage%dD(internalFormat=%s)", dimensions
,
2313 _mesa_enum_to_string(internalFormat
));
2318 if (_mesa_is_gles3(ctx
)) {
2319 bool rb_is_srgb
= false;
2320 bool dst_is_srgb
= false;
2322 if (ctx
->Extensions
.EXT_framebuffer_sRGB
&&
2323 _mesa_get_format_color_encoding(rb
->Format
) == GL_SRGB
) {
2327 if (_mesa_get_linear_internalformat(internalFormat
) != internalFormat
) {
2331 if (rb_is_srgb
!= dst_is_srgb
) {
2332 /* Page 137 (page 149 of the PDF) in section 3.8.5 of the
2333 * OpenGLES 3.0.0 spec says:
2335 * "The error INVALID_OPERATION is also generated if the
2336 * value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING for the
2337 * framebuffer attachment corresponding to the read buffer
2338 * is LINEAR (see section 6.1.13) and internalformat is
2339 * one of the sRGB formats described in section 3.8.16, or
2340 * if the value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING is
2341 * SRGB and internalformat is not one of the sRGB formats."
2343 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2344 "glCopyTexImage%dD(srgb usage mismatch)", dimensions
);
2348 /* Page 139, Table 3.15 of OpenGL ES 3.0 spec does not define ReadPixels
2349 * types for SNORM formats. Also, conversion to SNORM formats is not
2350 * allowed by Table 3.2 on Page 110.
2352 if (_mesa_is_enum_format_snorm(internalFormat
)) {
2353 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2354 "glCopyTexImage%dD(internalFormat=%s)", dimensions
,
2355 _mesa_enum_to_string(internalFormat
));
2360 if (!_mesa_source_buffer_exists(ctx
, baseFormat
)) {
2361 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2362 "glCopyTexImage%dD(missing readbuffer)", dimensions
);
2366 /* From the EXT_texture_integer spec:
2368 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2369 * if the texture internalformat is an integer format and the read color
2370 * buffer is not an integer format, or if the internalformat is not an
2371 * integer format and the read color buffer is an integer format."
2373 if (_mesa_is_color_format(internalFormat
)) {
2374 bool is_int
= _mesa_is_enum_format_integer(internalFormat
);
2375 bool is_rbint
= _mesa_is_enum_format_integer(rb_internal_format
);
2376 bool is_unorm
= _mesa_is_enum_format_unorm(internalFormat
);
2377 bool is_rbunorm
= _mesa_is_enum_format_unorm(rb_internal_format
);
2378 if (is_int
|| is_rbint
) {
2379 if (is_int
!= is_rbint
) {
2380 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2381 "glCopyTexImage%dD(integer vs non-integer)", dimensions
);
2383 } else if (_mesa_is_gles(ctx
) &&
2384 _mesa_is_enum_format_unsigned_int(internalFormat
) !=
2385 _mesa_is_enum_format_unsigned_int(rb_internal_format
)) {
2386 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2387 "glCopyTexImage%dD(signed vs unsigned integer)", dimensions
);
2392 /* From page 138 of OpenGL ES 3.0 spec:
2393 * "The error INVALID_OPERATION is generated if floating-point RGBA
2394 * data is required; if signed integer RGBA data is required and the
2395 * format of the current color buffer is not signed integer; if
2396 * unsigned integer RGBA data is required and the format of the
2397 * current color buffer is not unsigned integer; or if fixed-point
2398 * RGBA data is required and the format of the current color buffer
2399 * is not fixed-point.
2401 if (_mesa_is_gles(ctx
) && is_unorm
!= is_rbunorm
)
2402 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2403 "glCopyTexImage%dD(unorm vs non-unorm)", dimensions
);
2406 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
2408 if (!_mesa_target_can_be_compressed(ctx
, target
, internalFormat
, &err
)) {
2409 _mesa_error(ctx
, err
,
2410 "glCopyTexImage%dD(target can't be compressed)", dimensions
);
2413 if (_mesa_format_no_online_compression(ctx
, internalFormat
)) {
2414 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2415 "glCopyTexImage%dD(no compression for format)", dimensions
);
2419 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2420 "glCopyTexImage%dD(border!=0)", dimensions
);
2425 if (!mutable_tex_object(ctx
, target
)) {
2426 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2427 "glCopyTexImage%dD(immutable texture)", dimensions
);
2431 /* if we get here, the parameters are OK */
2437 * Test glCopyTexSubImage[12]D() parameters for errors.
2438 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2441 copytexsubimage_error_check(struct gl_context
*ctx
, GLuint dimensions
,
2442 const struct gl_texture_object
*texObj
,
2443 GLenum target
, GLint level
,
2444 GLint xoffset
, GLint yoffset
, GLint zoffset
,
2445 GLint width
, GLint height
, const char *caller
)
2447 struct gl_texture_image
*texImage
;
2449 /* Check that the source buffer is complete */
2450 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)) {
2451 if (ctx
->ReadBuffer
->_Status
== 0) {
2452 _mesa_test_framebuffer_completeness(ctx
, ctx
->ReadBuffer
);
2454 if (ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2455 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2456 "%s(invalid readbuffer)", caller
);
2460 if (ctx
->ReadBuffer
->Visual
.samples
> 0) {
2461 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2462 "%s(multisample FBO)", caller
);
2468 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
2469 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level=%d)", caller
, level
);
2473 /* Get dest image pointers */
2475 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s()", caller
);
2479 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
2481 /* destination image does not exist */
2482 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2483 "%s(invalid texture image)", caller
);
2487 if (error_check_subtexture_dimensions(ctx
, dimensions
, texImage
,
2488 xoffset
, yoffset
, zoffset
,
2489 width
, height
, 1, caller
)) {
2493 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
2494 if (_mesa_format_no_online_compression(ctx
, texImage
->InternalFormat
)) {
2495 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2496 "%s(no compression for format)", caller
);
2501 if (texImage
->InternalFormat
== GL_YCBCR_MESA
) {
2502 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s()", caller
);
2506 if (!_mesa_source_buffer_exists(ctx
, texImage
->_BaseFormat
)) {
2507 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2508 "%s(missing readbuffer, format=0x%x)", caller
,
2509 texImage
->_BaseFormat
);
2513 /* From the EXT_texture_integer spec:
2515 * "INVALID_OPERATION is generated by CopyTexImage* and
2516 * CopyTexSubImage* if the texture internalformat is an integer format
2517 * and the read color buffer is not an integer format, or if the
2518 * internalformat is not an integer format and the read color buffer
2519 * is an integer format."
2521 if (_mesa_is_color_format(texImage
->InternalFormat
)) {
2522 struct gl_renderbuffer
*rb
= ctx
->ReadBuffer
->_ColorReadBuffer
;
2524 if (_mesa_is_format_integer_color(rb
->Format
) !=
2525 _mesa_is_format_integer_color(texImage
->TexFormat
)) {
2526 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2527 "%s(integer vs non-integer)", caller
);
2532 /* if we get here, the parameters are OK */
2537 /** Callback info for walking over FBO hash table */
2540 struct gl_context
*ctx
;
2541 struct gl_texture_object
*texObj
;
2547 * Check render to texture callback. Called from _mesa_HashWalk().
2550 check_rtt_cb(GLuint key
, void *data
, void *userData
)
2552 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2553 const struct cb_info
*info
= (struct cb_info
*) userData
;
2554 struct gl_context
*ctx
= info
->ctx
;
2555 const struct gl_texture_object
*texObj
= info
->texObj
;
2556 const GLuint level
= info
->level
, face
= info
->face
;
2558 /* If this is a user-created FBO */
2559 if (_mesa_is_user_fbo(fb
)) {
2561 /* check if any of the FBO's attachments point to 'texObj' */
2562 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2563 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2564 if (att
->Type
== GL_TEXTURE
&&
2565 att
->Texture
== texObj
&&
2566 att
->TextureLevel
== level
&&
2567 att
->CubeMapFace
== face
) {
2568 _mesa_update_texture_renderbuffer(ctx
, ctx
->DrawBuffer
, att
);
2569 assert(att
->Renderbuffer
->TexImage
);
2570 /* Mark fb status as indeterminate to force re-validation */
2579 * When a texture image is specified we have to check if it's bound to
2580 * any framebuffer objects (render to texture) in order to detect changes
2581 * in size or format since that effects FBO completeness.
2582 * Any FBOs rendering into the texture must be re-validated.
2585 _mesa_update_fbo_texture(struct gl_context
*ctx
,
2586 struct gl_texture_object
*texObj
,
2587 GLuint face
, GLuint level
)
2589 /* Only check this texture if it's been marked as RenderToTexture */
2590 if (texObj
->_RenderToTexture
) {
2591 struct cb_info info
;
2593 info
.texObj
= texObj
;
2596 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, check_rtt_cb
, &info
);
2602 * If the texture object's GenerateMipmap flag is set and we've
2603 * changed the texture base level image, regenerate the rest of the
2604 * mipmap levels now.
2607 check_gen_mipmap(struct gl_context
*ctx
, GLenum target
,
2608 struct gl_texture_object
*texObj
, GLint level
)
2610 if (texObj
->GenerateMipmap
&&
2611 level
== texObj
->BaseLevel
&&
2612 level
< texObj
->MaxLevel
) {
2613 assert(ctx
->Driver
.GenerateMipmap
);
2614 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2619 /** Debug helper: override the user-requested internal format */
2621 override_internal_format(GLenum internalFormat
, GLint width
, GLint height
)
2624 if (internalFormat
== GL_RGBA16F_ARB
||
2625 internalFormat
== GL_RGBA32F_ARB
) {
2626 printf("Convert rgba float tex to int %d x %d\n", width
, height
);
2629 else if (internalFormat
== GL_RGB16F_ARB
||
2630 internalFormat
== GL_RGB32F_ARB
) {
2631 printf("Convert rgb float tex to int %d x %d\n", width
, height
);
2634 else if (internalFormat
== GL_LUMINANCE_ALPHA16F_ARB
||
2635 internalFormat
== GL_LUMINANCE_ALPHA32F_ARB
) {
2636 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2637 return GL_LUMINANCE_ALPHA
;
2639 else if (internalFormat
== GL_LUMINANCE16F_ARB
||
2640 internalFormat
== GL_LUMINANCE32F_ARB
) {
2641 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2642 return GL_LUMINANCE
;
2644 else if (internalFormat
== GL_ALPHA16F_ARB
||
2645 internalFormat
== GL_ALPHA32F_ARB
) {
2646 printf("Convert luminance float tex to int %d x %d\n", width
, height
);
2650 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2651 internalFormat = GL_RGBA;
2655 return internalFormat
;
2658 return internalFormat
;
2664 * Choose the actual hardware format for a texture image.
2665 * Try to use the same format as the previous image level when possible.
2666 * Otherwise, ask the driver for the best format.
2667 * It's important to try to choose a consistant format for all levels
2668 * for efficient texture memory layout/allocation. In particular, this
2669 * comes up during automatic mipmap generation.
2672 _mesa_choose_texture_format(struct gl_context
*ctx
,
2673 struct gl_texture_object
*texObj
,
2674 GLenum target
, GLint level
,
2675 GLenum internalFormat
, GLenum format
, GLenum type
)
2679 /* see if we've already chosen a format for the previous level */
2681 struct gl_texture_image
*prevImage
=
2682 _mesa_select_tex_image(texObj
, target
, level
- 1);
2683 /* See if the prev level is defined and has an internal format which
2684 * matches the new internal format.
2687 prevImage
->Width
> 0 &&
2688 prevImage
->InternalFormat
== internalFormat
) {
2689 /* use the same format */
2690 assert(prevImage
->TexFormat
!= MESA_FORMAT_NONE
);
2691 return prevImage
->TexFormat
;
2695 /* If the application requested compression to an S3TC format but we don't
2696 * have the DXTn library, force a generic compressed format instead.
2698 if (internalFormat
!= format
&& format
!= GL_NONE
) {
2699 const GLenum before
= internalFormat
;
2701 switch (internalFormat
) {
2702 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
2703 if (!ctx
->Mesa_DXTn
)
2704 internalFormat
= GL_COMPRESSED_RGB
;
2706 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
2707 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
2708 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
2709 if (!ctx
->Mesa_DXTn
)
2710 internalFormat
= GL_COMPRESSED_RGBA
;
2716 if (before
!= internalFormat
) {
2718 "DXT compression requested (%s), "
2719 "but libtxc_dxtn library not installed. Using %s "
2721 _mesa_enum_to_string(before
),
2722 _mesa_enum_to_string(internalFormat
));
2726 /* choose format from scratch */
2727 f
= ctx
->Driver
.ChooseTextureFormat(ctx
, target
, internalFormat
,
2729 assert(f
!= MESA_FORMAT_NONE
);
2735 * Adjust pixel unpack params and image dimensions to strip off the
2736 * one-pixel texture border.
2738 * Gallium and intel don't support texture borders. They've seldem been used
2739 * and seldom been implemented correctly anyway.
2741 * \param unpackNew returns the new pixel unpack parameters
2744 strip_texture_border(GLenum target
,
2745 GLint
*width
, GLint
*height
, GLint
*depth
,
2746 const struct gl_pixelstore_attrib
*unpack
,
2747 struct gl_pixelstore_attrib
*unpackNew
)
2753 *unpackNew
= *unpack
;
2755 if (unpackNew
->RowLength
== 0)
2756 unpackNew
->RowLength
= *width
;
2758 if (unpackNew
->ImageHeight
== 0)
2759 unpackNew
->ImageHeight
= *height
;
2761 assert(*width
>= 3);
2762 unpackNew
->SkipPixels
++; /* skip the border */
2763 *width
= *width
- 2; /* reduce the width by two border pixels */
2765 /* The min height of a texture with a border is 3 */
2766 if (*height
>= 3 && target
!= GL_TEXTURE_1D_ARRAY
) {
2767 unpackNew
->SkipRows
++; /* skip the border */
2768 *height
= *height
- 2; /* reduce the height by two border pixels */
2772 target
!= GL_TEXTURE_2D_ARRAY
&&
2773 target
!= GL_TEXTURE_CUBE_MAP_ARRAY
) {
2774 unpackNew
->SkipImages
++; /* skip the border */
2775 *depth
= *depth
- 2; /* reduce the depth by two border pixels */
2781 * Common code to implement all the glTexImage1D/2D/3D functions
2782 * as well as glCompressedTexImage1D/2D/3D.
2783 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls.
2784 * \param format the user's image format (only used if !compressed)
2785 * \param type the user's image type (only used if !compressed)
2786 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls.
2789 teximage(struct gl_context
*ctx
, GLboolean compressed
, GLuint dims
,
2790 GLenum target
, GLint level
, GLint internalFormat
,
2791 GLsizei width
, GLsizei height
, GLsizei depth
,
2792 GLint border
, GLenum format
, GLenum type
,
2793 GLsizei imageSize
, const GLvoid
*pixels
)
2795 const char *func
= compressed
? "glCompressedTexImage" : "glTexImage";
2796 struct gl_pixelstore_attrib unpack_no_border
;
2797 const struct gl_pixelstore_attrib
*unpack
= &ctx
->Unpack
;
2798 struct gl_texture_object
*texObj
;
2799 mesa_format texFormat
;
2800 GLboolean dimensionsOK
, sizeOK
;
2802 FLUSH_VERTICES(ctx
, 0);
2804 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
)) {
2807 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n",
2809 _mesa_enum_to_string(target
), level
,
2810 _mesa_enum_to_string(internalFormat
),
2811 width
, height
, depth
, border
, pixels
);
2814 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2816 _mesa_enum_to_string(target
), level
,
2817 _mesa_enum_to_string(internalFormat
),
2818 width
, height
, depth
, border
,
2819 _mesa_enum_to_string(format
),
2820 _mesa_enum_to_string(type
), pixels
);
2823 internalFormat
= override_internal_format(internalFormat
, width
, height
);
2825 /* target error checking */
2826 if (!legal_teximage_target(ctx
, dims
, target
)) {
2827 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s%uD(target=%s)",
2828 func
, dims
, _mesa_enum_to_string(target
));
2832 /* general error checking */
2834 if (compressed_texture_error_check(ctx
, dims
, target
, level
,
2836 width
, height
, depth
,
2837 border
, imageSize
, pixels
))
2841 if (texture_error_check(ctx
, dims
, target
, level
, internalFormat
,
2842 format
, type
, width
, height
, depth
, border
,
2847 /* Here we convert a cpal compressed image into a regular glTexImage2D
2848 * call by decompressing the texture. If we really want to support cpal
2849 * textures in any driver this would have to be changed.
2851 if (ctx
->API
== API_OPENGLES
&& compressed
&& dims
== 2) {
2852 switch (internalFormat
) {
2853 case GL_PALETTE4_RGB8_OES
:
2854 case GL_PALETTE4_RGBA8_OES
:
2855 case GL_PALETTE4_R5_G6_B5_OES
:
2856 case GL_PALETTE4_RGBA4_OES
:
2857 case GL_PALETTE4_RGB5_A1_OES
:
2858 case GL_PALETTE8_RGB8_OES
:
2859 case GL_PALETTE8_RGBA8_OES
:
2860 case GL_PALETTE8_R5_G6_B5_OES
:
2861 case GL_PALETTE8_RGBA4_OES
:
2862 case GL_PALETTE8_RGB5_A1_OES
:
2863 _mesa_cpal_compressed_teximage2d(target
, level
, internalFormat
,
2864 width
, height
, imageSize
, pixels
);
2869 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2873 /* For glCompressedTexImage() the driver has no choice about the
2874 * texture format since we'll never transcode the user's compressed
2875 * image data. The internalFormat was error checked earlier.
2877 texFormat
= _mesa_glenum_to_compressed_format(internalFormat
);
2880 /* In case of HALF_FLOAT_OES or FLOAT_OES, find corresponding sized
2881 * internal floating point format for the given base format.
2883 if (_mesa_is_gles(ctx
) && format
== internalFormat
) {
2884 if (type
== GL_FLOAT
) {
2885 texObj
->_IsFloat
= GL_TRUE
;
2886 } else if (type
== GL_HALF_FLOAT_OES
|| type
== GL_HALF_FLOAT
) {
2887 texObj
->_IsHalfFloat
= GL_TRUE
;
2890 internalFormat
= adjust_for_oes_float_texture(format
, type
);
2893 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
2894 internalFormat
, format
, type
);
2897 assert(texFormat
!= MESA_FORMAT_NONE
);
2899 /* check that width, height, depth are legal for the mipmap level */
2900 dimensionsOK
= _mesa_legal_texture_dimensions(ctx
, target
, level
, width
,
2901 height
, depth
, border
);
2903 /* check that the texture won't take too much memory, etc */
2904 sizeOK
= ctx
->Driver
.TestProxyTexImage(ctx
, proxy_target(target
),
2906 width
, height
, depth
, border
);
2908 if (_mesa_is_proxy_texture(target
)) {
2909 /* Proxy texture: just clear or set state depending on error checking */
2910 struct gl_texture_image
*texImage
=
2911 get_proxy_tex_image(ctx
, target
, level
);
2914 return; /* GL_OUT_OF_MEMORY already recorded */
2916 if (dimensionsOK
&& sizeOK
) {
2917 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, depth
,
2918 border
, internalFormat
, texFormat
);
2921 clear_teximage_fields(texImage
);
2925 /* non-proxy target */
2926 const GLuint face
= _mesa_tex_target_to_face(target
);
2927 struct gl_texture_image
*texImage
;
2929 if (!dimensionsOK
) {
2930 _mesa_error(ctx
, GL_INVALID_VALUE
,
2931 "%s%uD(invalid width or height or depth)",
2937 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
2938 "%s%uD(image too large: %d x %d x %d, %s format)",
2939 func
, dims
, width
, height
, depth
,
2940 _mesa_enum_to_string(internalFormat
));
2944 /* Allow a hardware driver to just strip out the border, to provide
2945 * reliable but slightly incorrect hardware rendering instead of
2946 * rarely-tested software fallback rendering.
2948 if (border
&& ctx
->Const
.StripTextureBorder
) {
2949 strip_texture_border(target
, &width
, &height
, &depth
, unpack
,
2952 unpack
= &unpack_no_border
;
2955 if (ctx
->NewState
& _NEW_PIXEL
)
2956 _mesa_update_state(ctx
);
2958 _mesa_lock_texture(ctx
, texObj
);
2960 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
2963 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s%uD", func
, dims
);
2966 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
2968 _mesa_init_teximage_fields(ctx
, texImage
,
2969 width
, height
, depth
,
2970 border
, internalFormat
, texFormat
);
2972 /* Give the texture to the driver. <pixels> may be null. */
2973 if (width
> 0 && height
> 0 && depth
> 0) {
2975 ctx
->Driver
.CompressedTexImage(ctx
, dims
, texImage
,
2979 ctx
->Driver
.TexImage(ctx
, dims
, texImage
, format
,
2980 type
, pixels
, unpack
);
2984 check_gen_mipmap(ctx
, target
, texObj
, level
);
2986 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
2988 _mesa_dirty_texobj(ctx
, texObj
);
2991 _mesa_unlock_texture(ctx
, texObj
);
2998 * Called from the API. Note that width includes the border.
3001 _mesa_TexImage1D( GLenum target
, GLint level
, GLint internalFormat
,
3002 GLsizei width
, GLint border
, GLenum format
,
3003 GLenum type
, const GLvoid
*pixels
)
3005 GET_CURRENT_CONTEXT(ctx
);
3006 teximage(ctx
, GL_FALSE
, 1, target
, level
, internalFormat
, width
, 1, 1,
3007 border
, format
, type
, 0, pixels
);
3012 _mesa_TexImage2D( GLenum target
, GLint level
, GLint internalFormat
,
3013 GLsizei width
, GLsizei height
, GLint border
,
3014 GLenum format
, GLenum type
,
3015 const GLvoid
*pixels
)
3017 GET_CURRENT_CONTEXT(ctx
);
3018 teximage(ctx
, GL_FALSE
, 2, target
, level
, internalFormat
, width
, height
, 1,
3019 border
, format
, type
, 0, pixels
);
3024 * Called by the API or display list executor.
3025 * Note that width and height include the border.
3028 _mesa_TexImage3D( GLenum target
, GLint level
, GLint internalFormat
,
3029 GLsizei width
, GLsizei height
, GLsizei depth
,
3030 GLint border
, GLenum format
, GLenum type
,
3031 const GLvoid
*pixels
)
3033 GET_CURRENT_CONTEXT(ctx
);
3034 teximage(ctx
, GL_FALSE
, 3, target
, level
, internalFormat
,
3035 width
, height
, depth
,
3036 border
, format
, type
, 0, pixels
);
3041 _mesa_TexImage3DEXT( GLenum target
, GLint level
, GLenum internalFormat
,
3042 GLsizei width
, GLsizei height
, GLsizei depth
,
3043 GLint border
, GLenum format
, GLenum type
,
3044 const GLvoid
*pixels
)
3046 _mesa_TexImage3D(target
, level
, (GLint
) internalFormat
, width
, height
,
3047 depth
, border
, format
, type
, pixels
);
3052 _mesa_EGLImageTargetTexture2DOES (GLenum target
, GLeglImageOES image
)
3054 struct gl_texture_object
*texObj
;
3055 struct gl_texture_image
*texImage
;
3057 GET_CURRENT_CONTEXT(ctx
);
3058 FLUSH_VERTICES(ctx
, 0);
3062 valid_target
= ctx
->Extensions
.OES_EGL_image
;
3064 case GL_TEXTURE_EXTERNAL_OES
:
3066 _mesa_is_gles(ctx
) ? ctx
->Extensions
.OES_EGL_image_external
: false;
3069 valid_target
= false;
3073 if (!valid_target
) {
3074 _mesa_error(ctx
, GL_INVALID_ENUM
,
3075 "glEGLImageTargetTexture2D(target=%d)", target
);
3080 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3081 "glEGLImageTargetTexture2D(image=%p)", image
);
3085 if (ctx
->NewState
& _NEW_PIXEL
)
3086 _mesa_update_state(ctx
);
3088 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3092 _mesa_lock_texture(ctx
, texObj
);
3094 if (texObj
->Immutable
) {
3095 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3096 "glEGLImageTargetTexture2D(texture is immutable)");
3097 _mesa_unlock_texture(ctx
, texObj
);
3101 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, 0);
3103 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glEGLImageTargetTexture2D");
3105 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3107 ctx
->Driver
.EGLImageTargetTexture2D(ctx
, target
,
3108 texObj
, texImage
, image
);
3110 _mesa_dirty_texobj(ctx
, texObj
);
3112 _mesa_unlock_texture(ctx
, texObj
);
3117 * Helper that implements the glTexSubImage1/2/3D()
3118 * and glTextureSubImage1/2/3D() functions.
3121 _mesa_texture_sub_image(struct gl_context
*ctx
, GLuint dims
,
3122 struct gl_texture_object
*texObj
,
3123 struct gl_texture_image
*texImage
,
3124 GLenum target
, GLint level
,
3125 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3126 GLsizei width
, GLsizei height
, GLsizei depth
,
3127 GLenum format
, GLenum type
, const GLvoid
*pixels
,
3130 FLUSH_VERTICES(ctx
, 0);
3132 if (ctx
->NewState
& _NEW_PIXEL
)
3133 _mesa_update_state(ctx
);
3135 _mesa_lock_texture(ctx
, texObj
);
3137 if (width
> 0 && height
> 0 && depth
> 0) {
3138 /* If we have a border, offset=-1 is legal. Bias by border width. */
3141 if (target
!= GL_TEXTURE_2D_ARRAY
)
3142 zoffset
+= texImage
->Border
;
3145 if (target
!= GL_TEXTURE_1D_ARRAY
)
3146 yoffset
+= texImage
->Border
;
3149 xoffset
+= texImage
->Border
;
3152 ctx
->Driver
.TexSubImage(ctx
, dims
, texImage
,
3153 xoffset
, yoffset
, zoffset
,
3154 width
, height
, depth
,
3155 format
, type
, pixels
, &ctx
->Unpack
);
3157 check_gen_mipmap(ctx
, target
, texObj
, level
);
3159 /* NOTE: Don't signal _NEW_TEXTURE since we've only changed
3160 * the texel data, not the texture format, size, etc.
3164 _mesa_unlock_texture(ctx
, texObj
);
3168 * Implement all the glTexSubImage1/2/3D() functions.
3169 * Must split this out this way because of GL_TEXTURE_CUBE_MAP.
3172 texsubimage(struct gl_context
*ctx
, GLuint dims
, GLenum target
, GLint level
,
3173 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3174 GLsizei width
, GLsizei height
, GLsizei depth
,
3175 GLenum format
, GLenum type
, const GLvoid
*pixels
,
3176 const char *callerName
)
3178 struct gl_texture_object
*texObj
;
3179 struct gl_texture_image
*texImage
;
3181 /* check target (proxies not allowed) */
3182 if (!legal_texsubimage_target(ctx
, dims
, target
, false)) {
3183 _mesa_error(ctx
, GL_INVALID_ENUM
, "glTexSubImage%uD(target=%s)",
3184 dims
, _mesa_enum_to_string(target
));
3188 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3192 if (texsubimage_error_check(ctx
, dims
, texObj
, target
, level
,
3193 xoffset
, yoffset
, zoffset
,
3194 width
, height
, depth
, format
, type
,
3195 pixels
, false, callerName
)) {
3196 return; /* error was detected */
3199 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
3200 /* texsubimage_error_check ensures that texImage is not NULL */
3202 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3203 _mesa_debug(ctx
, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
3205 _mesa_enum_to_string(target
), level
,
3206 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3207 _mesa_enum_to_string(format
),
3208 _mesa_enum_to_string(type
), pixels
);
3210 _mesa_texture_sub_image(ctx
, dims
, texObj
, texImage
, target
, level
,
3211 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3212 format
, type
, pixels
, false);
3217 * Implement all the glTextureSubImage1/2/3D() functions.
3218 * Must split this out this way because of GL_TEXTURE_CUBE_MAP.
3221 texturesubimage(struct gl_context
*ctx
, GLuint dims
,
3222 GLuint texture
, GLint level
,
3223 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3224 GLsizei width
, GLsizei height
, GLsizei depth
,
3225 GLenum format
, GLenum type
, const GLvoid
*pixels
,
3226 const char *callerName
)
3228 struct gl_texture_object
*texObj
;
3229 struct gl_texture_image
*texImage
;
3232 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3234 "glTextureSubImage%uD %d %d %d %d %d %d %d %d %s %s %p\n",
3235 dims
, texture
, level
,
3236 xoffset
, yoffset
, zoffset
, width
, height
, depth
,
3237 _mesa_enum_to_string(format
),
3238 _mesa_enum_to_string(type
), pixels
);
3240 /* Get the texture object by Name. */
3241 texObj
= _mesa_lookup_texture(ctx
, texture
);
3243 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glTextureSubImage%uD(texture)",
3248 /* check target (proxies not allowed) */
3249 if (!legal_texsubimage_target(ctx
, dims
, texObj
->Target
, true)) {
3250 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target=%s)",
3251 callerName
, _mesa_enum_to_string(texObj
->Target
));
3255 if (texsubimage_error_check(ctx
, dims
, texObj
, texObj
->Target
, level
,
3256 xoffset
, yoffset
, zoffset
,
3257 width
, height
, depth
, format
, type
,
3258 pixels
, true, callerName
)) {
3259 return; /* error was detected */
3263 /* Must handle special case GL_TEXTURE_CUBE_MAP. */
3264 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3268 * What do we do if the user created a texture with the following code
3269 * and then called this function with its handle?
3272 * glCreateTextures(GL_TEXTURE_CUBE_MAP, 1, &tex);
3273 * glBindTexture(GL_TEXTURE_CUBE_MAP, tex);
3274 * glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, ...);
3275 * glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_X, 0, ...);
3276 * glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Y, 0, ...);
3277 * // Note: GL_TEXTURE_CUBE_MAP_NEGATIVE_Y not set, or given the
3278 * // wrong format, or given the wrong size, etc.
3279 * glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_Z, 0, ...);
3280 * glTexImage2D(GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, 0, ...);
3282 * A bug has been filed against the spec for this case. In the
3283 * meantime, we will check for cube completeness.
3285 * According to Section 8.17 Texture Completeness in the OpenGL 4.5
3286 * Core Profile spec (30.10.2014):
3287 * "[A] cube map texture is cube complete if the
3288 * following conditions all hold true: The [base level] texture
3289 * images of each of the six cube map faces have identical, positive,
3290 * and square dimensions. The [base level] images were each specified
3291 * with the same internal format."
3293 * It seems reasonable to check for cube completeness of an arbitrary
3294 * level here so that the image data has a consistent format and size.
3296 if (!_mesa_cube_level_complete(texObj
, level
)) {
3297 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3298 "glTextureSubImage%uD(cube map incomplete)",
3303 imageStride
= _mesa_image_image_stride(&ctx
->Unpack
, width
, height
,
3305 /* Copy in each face. */
3306 for (i
= zoffset
; i
< zoffset
+ depth
; ++i
) {
3307 texImage
= texObj
->Image
[i
][level
];
3310 _mesa_texture_sub_image(ctx
, 3, texObj
, texImage
, texObj
->Target
,
3311 level
, xoffset
, yoffset
, 0,
3312 width
, height
, 1, format
,
3313 type
, pixels
, true);
3314 pixels
= (GLubyte
*) pixels
+ imageStride
;
3318 texImage
= _mesa_select_tex_image(texObj
, texObj
->Target
, level
);
3321 _mesa_texture_sub_image(ctx
, dims
, texObj
, texImage
, texObj
->Target
,
3322 level
, xoffset
, yoffset
, zoffset
,
3323 width
, height
, depth
, format
,
3324 type
, pixels
, true);
3330 _mesa_TexSubImage1D( GLenum target
, GLint level
,
3331 GLint xoffset
, GLsizei width
,
3332 GLenum format
, GLenum type
,
3333 const GLvoid
*pixels
)
3335 GET_CURRENT_CONTEXT(ctx
);
3336 texsubimage(ctx
, 1, target
, level
,
3339 format
, type
, pixels
, "glTexSubImage1D");
3344 _mesa_TexSubImage2D( GLenum target
, GLint level
,
3345 GLint xoffset
, GLint yoffset
,
3346 GLsizei width
, GLsizei height
,
3347 GLenum format
, GLenum type
,
3348 const GLvoid
*pixels
)
3350 GET_CURRENT_CONTEXT(ctx
);
3351 texsubimage(ctx
, 2, target
, level
,
3352 xoffset
, yoffset
, 0,
3354 format
, type
, pixels
, "glTexSubImage2D");
3360 _mesa_TexSubImage3D( GLenum target
, GLint level
,
3361 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3362 GLsizei width
, GLsizei height
, GLsizei depth
,
3363 GLenum format
, GLenum type
,
3364 const GLvoid
*pixels
)
3366 GET_CURRENT_CONTEXT(ctx
);
3367 texsubimage(ctx
, 3, target
, level
,
3368 xoffset
, yoffset
, zoffset
,
3369 width
, height
, depth
,
3370 format
, type
, pixels
, "glTexSubImage3D");
3374 _mesa_TextureSubImage1D(GLuint texture
, GLint level
,
3375 GLint xoffset
, GLsizei width
,
3376 GLenum format
, GLenum type
,
3377 const GLvoid
*pixels
)
3379 GET_CURRENT_CONTEXT(ctx
);
3380 texturesubimage(ctx
, 1, texture
, level
,
3383 format
, type
, pixels
, "glTextureSubImage1D");
3388 _mesa_TextureSubImage2D(GLuint texture
, GLint level
,
3389 GLint xoffset
, GLint yoffset
,
3390 GLsizei width
, GLsizei height
,
3391 GLenum format
, GLenum type
,
3392 const GLvoid
*pixels
)
3394 GET_CURRENT_CONTEXT(ctx
);
3395 texturesubimage(ctx
, 2, texture
, level
,
3396 xoffset
, yoffset
, 0,
3398 format
, type
, pixels
, "glTextureSubImage2D");
3403 _mesa_TextureSubImage3D(GLuint texture
, GLint level
,
3404 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3405 GLsizei width
, GLsizei height
, GLsizei depth
,
3406 GLenum format
, GLenum type
,
3407 const GLvoid
*pixels
)
3409 GET_CURRENT_CONTEXT(ctx
);
3410 texturesubimage(ctx
, 3, texture
, level
,
3411 xoffset
, yoffset
, zoffset
,
3412 width
, height
, depth
,
3413 format
, type
, pixels
, "glTextureSubImage3D");
3418 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3419 * from. This depends on whether the texture contains color or depth values.
3421 static struct gl_renderbuffer
*
3422 get_copy_tex_image_source(struct gl_context
*ctx
, mesa_format texFormat
)
3424 if (_mesa_get_format_bits(texFormat
, GL_DEPTH_BITS
) > 0) {
3425 /* reading from depth/stencil buffer */
3426 return ctx
->ReadBuffer
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
3429 /* copying from color buffer */
3430 return ctx
->ReadBuffer
->_ColorReadBuffer
;
3435 copytexsubimage_by_slice(struct gl_context
*ctx
,
3436 struct gl_texture_image
*texImage
,
3438 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3439 struct gl_renderbuffer
*rb
,
3441 GLsizei width
, GLsizei height
)
3443 if (texImage
->TexObject
->Target
== GL_TEXTURE_1D_ARRAY
) {
3446 /* For 1D arrays, we copy each scanline of the source rectangle into the
3449 assert(zoffset
== 0);
3451 for (slice
= 0; slice
< height
; slice
++) {
3452 assert(yoffset
+ slice
< texImage
->Height
);
3453 ctx
->Driver
.CopyTexSubImage(ctx
, 2, texImage
,
3454 xoffset
, 0, yoffset
+ slice
,
3455 rb
, x
, y
+ slice
, width
, 1);
3458 ctx
->Driver
.CopyTexSubImage(ctx
, dims
, texImage
,
3459 xoffset
, yoffset
, zoffset
,
3460 rb
, x
, y
, width
, height
);
3465 formats_differ_in_component_sizes(mesa_format f1
, mesa_format f2
)
3467 GLint f1_r_bits
= _mesa_get_format_bits(f1
, GL_RED_BITS
);
3468 GLint f1_g_bits
= _mesa_get_format_bits(f1
, GL_GREEN_BITS
);
3469 GLint f1_b_bits
= _mesa_get_format_bits(f1
, GL_BLUE_BITS
);
3470 GLint f1_a_bits
= _mesa_get_format_bits(f1
, GL_ALPHA_BITS
);
3472 GLint f2_r_bits
= _mesa_get_format_bits(f2
, GL_RED_BITS
);
3473 GLint f2_g_bits
= _mesa_get_format_bits(f2
, GL_GREEN_BITS
);
3474 GLint f2_b_bits
= _mesa_get_format_bits(f2
, GL_BLUE_BITS
);
3475 GLint f2_a_bits
= _mesa_get_format_bits(f2
, GL_ALPHA_BITS
);
3477 if ((f1_r_bits
&& f2_r_bits
&& f1_r_bits
!= f2_r_bits
)
3478 || (f1_g_bits
&& f2_g_bits
&& f1_g_bits
!= f2_g_bits
)
3479 || (f1_b_bits
&& f2_b_bits
&& f1_b_bits
!= f2_b_bits
)
3480 || (f1_a_bits
&& f2_a_bits
&& f1_a_bits
!= f2_a_bits
))
3487 * Implement the glCopyTexImage1/2D() functions.
3490 copyteximage(struct gl_context
*ctx
, GLuint dims
,
3491 GLenum target
, GLint level
, GLenum internalFormat
,
3492 GLint x
, GLint y
, GLsizei width
, GLsizei height
, GLint border
)
3494 struct gl_texture_object
*texObj
;
3495 struct gl_texture_image
*texImage
;
3496 const GLuint face
= _mesa_tex_target_to_face(target
);
3497 mesa_format texFormat
;
3498 struct gl_renderbuffer
*rb
;
3500 FLUSH_VERTICES(ctx
, 0);
3502 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3503 _mesa_debug(ctx
, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3505 _mesa_enum_to_string(target
), level
,
3506 _mesa_enum_to_string(internalFormat
),
3507 x
, y
, width
, height
, border
);
3509 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3510 _mesa_update_state(ctx
);
3512 if (copytexture_error_check(ctx
, dims
, target
, level
, internalFormat
,
3513 width
, height
, border
))
3516 if (!_mesa_legal_texture_dimensions(ctx
, target
, level
, width
, height
,
3518 _mesa_error(ctx
, GL_INVALID_VALUE
,
3519 "glCopyTexImage%uD(invalid width or height)", dims
);
3523 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3526 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
3527 internalFormat
, GL_NONE
, GL_NONE
);
3529 rb
= _mesa_get_read_renderbuffer_for_format(ctx
, internalFormat
);
3531 if (_mesa_is_gles3(ctx
)) {
3532 if (_mesa_is_enum_format_unsized(internalFormat
)) {
3533 /* Conversion from GL_RGB10_A2 source buffer format is not allowed in
3534 * OpenGL ES 3.0. Khronos bug# 9807.
3536 if (rb
->InternalFormat
== GL_RGB10_A2
) {
3537 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3538 "glCopyTexImage%uD(Reading from GL_RGB10_A2 buffer"
3539 " and writing to unsized internal format)", dims
);
3543 /* From Page 139 of OpenGL ES 3.0 spec:
3544 * "If internalformat is sized, the internal format of the new texel
3545 * array is internalformat, and this is also the new texel array’s
3546 * effective internal format. If the component sizes of internalformat
3547 * do not exactly match the corresponding component sizes of the source
3548 * buffer’s effective internal format, described below, an
3549 * INVALID_OPERATION error is generated. If internalformat is unsized,
3550 * the internal format of the new texel array is the effective internal
3551 * format of the source buffer, and this is also the new texel array’s
3552 * effective internal format.
3554 else if (formats_differ_in_component_sizes (texFormat
, rb
->Format
)) {
3555 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3556 "glCopyTexImage%uD(componenet size changed in"
3557 " internal format)", dims
);
3562 assert(texFormat
!= MESA_FORMAT_NONE
);
3564 if (!ctx
->Driver
.TestProxyTexImage(ctx
, proxy_target(target
),
3566 width
, height
, 1, border
)) {
3567 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
3568 "glCopyTexImage%uD(image too large)", dims
);
3572 if (border
&& ctx
->Const
.StripTextureBorder
) {
3574 width
-= border
* 2;
3577 height
-= border
* 2;
3582 _mesa_lock_texture(ctx
, texObj
);
3584 texImage
= _mesa_get_tex_image(ctx
, texObj
, target
, level
);
3587 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexImage%uD", dims
);
3590 GLint srcX
= x
, srcY
= y
, dstX
= 0, dstY
= 0, dstZ
= 0;
3592 /* Free old texture image */
3593 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
3595 _mesa_init_teximage_fields(ctx
, texImage
, width
, height
, 1,
3596 border
, internalFormat
, texFormat
);
3598 if (width
&& height
) {
3599 /* Allocate texture memory (no pixel data yet) */
3600 ctx
->Driver
.AllocTextureImageBuffer(ctx
, texImage
);
3602 if (_mesa_clip_copytexsubimage(ctx
, &dstX
, &dstY
, &srcX
, &srcY
,
3604 struct gl_renderbuffer
*srcRb
=
3605 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3607 copytexsubimage_by_slice(ctx
, texImage
, dims
,
3609 srcRb
, srcX
, srcY
, width
, height
);
3612 check_gen_mipmap(ctx
, target
, texObj
, level
);
3615 _mesa_update_fbo_texture(ctx
, texObj
, face
, level
);
3617 _mesa_dirty_texobj(ctx
, texObj
);
3620 _mesa_unlock_texture(ctx
, texObj
);
3626 _mesa_CopyTexImage1D( GLenum target
, GLint level
,
3627 GLenum internalFormat
,
3629 GLsizei width
, GLint border
)
3631 GET_CURRENT_CONTEXT(ctx
);
3632 copyteximage(ctx
, 1, target
, level
, internalFormat
, x
, y
, width
, 1, border
);
3638 _mesa_CopyTexImage2D( GLenum target
, GLint level
, GLenum internalFormat
,
3639 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
3642 GET_CURRENT_CONTEXT(ctx
);
3643 copyteximage(ctx
, 2, target
, level
, internalFormat
,
3644 x
, y
, width
, height
, border
);
3648 * Implementation for glCopyTex(ture)SubImage1/2/3D() functions.
3651 _mesa_copy_texture_sub_image(struct gl_context
*ctx
, GLuint dims
,
3652 struct gl_texture_object
*texObj
,
3653 GLenum target
, GLint level
,
3654 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3656 GLsizei width
, GLsizei height
,
3659 struct gl_texture_image
*texImage
;
3661 FLUSH_VERTICES(ctx
, 0);
3663 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
3664 _mesa_debug(ctx
, "%s %s %d %d %d %d %d %d %d %d\n", caller
,
3665 _mesa_enum_to_string(target
),
3666 level
, xoffset
, yoffset
, zoffset
, x
, y
, width
, height
);
3668 if (ctx
->NewState
& NEW_COPY_TEX_STATE
)
3669 _mesa_update_state(ctx
);
3671 if (copytexsubimage_error_check(ctx
, dims
, texObj
, target
, level
,
3672 xoffset
, yoffset
, zoffset
,
3673 width
, height
, caller
)) {
3677 _mesa_lock_texture(ctx
, texObj
);
3679 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
3681 /* If we have a border, offset=-1 is legal. Bias by border width. */
3684 if (target
!= GL_TEXTURE_2D_ARRAY
)
3685 zoffset
+= texImage
->Border
;
3688 if (target
!= GL_TEXTURE_1D_ARRAY
)
3689 yoffset
+= texImage
->Border
;
3692 xoffset
+= texImage
->Border
;
3695 if (_mesa_clip_copytexsubimage(ctx
, &xoffset
, &yoffset
, &x
, &y
,
3697 struct gl_renderbuffer
*srcRb
=
3698 get_copy_tex_image_source(ctx
, texImage
->TexFormat
);
3700 copytexsubimage_by_slice(ctx
, texImage
, dims
,
3701 xoffset
, yoffset
, zoffset
,
3702 srcRb
, x
, y
, width
, height
);
3704 check_gen_mipmap(ctx
, target
, texObj
, level
);
3706 /* NOTE: Don't signal _NEW_TEXTURE since we've only changed
3707 * the texel data, not the texture format, size, etc.
3711 _mesa_unlock_texture(ctx
, texObj
);
3715 _mesa_CopyTexSubImage1D( GLenum target
, GLint level
,
3716 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
3718 struct gl_texture_object
* texObj
;
3719 const char *self
= "glCopyTexSubImage1D";
3720 GET_CURRENT_CONTEXT(ctx
);
3722 /* Check target (proxies not allowed). Target must be checked prior to
3723 * calling _mesa_get_current_tex_object.
3725 if (!legal_texsubimage_target(ctx
, 1, target
, false)) {
3726 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3727 _mesa_enum_to_string(target
));
3731 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3735 _mesa_copy_texture_sub_image(ctx
, 1, texObj
, target
, level
, xoffset
, 0, 0,
3736 x
, y
, width
, 1, self
);
3742 _mesa_CopyTexSubImage2D( GLenum target
, GLint level
,
3743 GLint xoffset
, GLint yoffset
,
3744 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3746 struct gl_texture_object
* texObj
;
3747 const char *self
= "glCopyTexSubImage2D";
3748 GET_CURRENT_CONTEXT(ctx
);
3750 /* Check target (proxies not allowed). Target must be checked prior to
3751 * calling _mesa_get_current_tex_object.
3753 if (!legal_texsubimage_target(ctx
, 2, target
, false)) {
3754 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3755 _mesa_enum_to_string(target
));
3759 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3763 _mesa_copy_texture_sub_image(ctx
, 2, texObj
, target
, level
,
3764 xoffset
, yoffset
, 0,
3765 x
, y
, width
, height
, self
);
3771 _mesa_CopyTexSubImage3D( GLenum target
, GLint level
,
3772 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3773 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3775 struct gl_texture_object
* texObj
;
3776 const char *self
= "glCopyTexSubImage3D";
3777 GET_CURRENT_CONTEXT(ctx
);
3779 /* Check target (proxies not allowed). Target must be checked prior to
3780 * calling _mesa_get_current_tex_object.
3782 if (!legal_texsubimage_target(ctx
, 3, target
, false)) {
3783 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3784 _mesa_enum_to_string(target
));
3788 texObj
= _mesa_get_current_tex_object(ctx
, target
);
3792 _mesa_copy_texture_sub_image(ctx
, 3, texObj
, target
, level
,
3793 xoffset
, yoffset
, zoffset
,
3794 x
, y
, width
, height
, self
);
3798 _mesa_CopyTextureSubImage1D(GLuint texture
, GLint level
,
3799 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
3801 struct gl_texture_object
* texObj
;
3802 const char *self
= "glCopyTextureSubImage1D";
3803 GET_CURRENT_CONTEXT(ctx
);
3805 texObj
= _mesa_lookup_texture_err(ctx
, texture
, self
);
3809 /* Check target (proxies not allowed). */
3810 if (!legal_texsubimage_target(ctx
, 1, texObj
->Target
, true)) {
3811 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3812 _mesa_enum_to_string(texObj
->Target
));
3816 _mesa_copy_texture_sub_image(ctx
, 1, texObj
, texObj
->Target
, level
,
3817 xoffset
, 0, 0, x
, y
, width
, 1, self
);
3821 _mesa_CopyTextureSubImage2D(GLuint texture
, GLint level
,
3822 GLint xoffset
, GLint yoffset
,
3823 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3825 struct gl_texture_object
* texObj
;
3826 const char *self
= "glCopyTextureSubImage2D";
3827 GET_CURRENT_CONTEXT(ctx
);
3829 texObj
= _mesa_lookup_texture_err(ctx
, texture
, self
);
3833 /* Check target (proxies not allowed). */
3834 if (!legal_texsubimage_target(ctx
, 2, texObj
->Target
, true)) {
3835 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3836 _mesa_enum_to_string(texObj
->Target
));
3840 _mesa_copy_texture_sub_image(ctx
, 2, texObj
, texObj
->Target
, level
,
3841 xoffset
, yoffset
, 0,
3842 x
, y
, width
, height
, self
);
3848 _mesa_CopyTextureSubImage3D(GLuint texture
, GLint level
,
3849 GLint xoffset
, GLint yoffset
, GLint zoffset
,
3850 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
3852 struct gl_texture_object
* texObj
;
3853 const char *self
= "glCopyTextureSubImage3D";
3854 GET_CURRENT_CONTEXT(ctx
);
3856 texObj
= _mesa_lookup_texture_err(ctx
, texture
, self
);
3860 /* Check target (proxies not allowed). */
3861 if (!legal_texsubimage_target(ctx
, 3, texObj
->Target
, true)) {
3862 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", self
,
3863 _mesa_enum_to_string(texObj
->Target
));
3867 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3868 /* Act like CopyTexSubImage2D */
3869 _mesa_copy_texture_sub_image(ctx
, 2, texObj
,
3870 GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ zoffset
,
3871 level
, xoffset
, yoffset
, 0,
3872 x
, y
, width
, height
, self
);
3875 _mesa_copy_texture_sub_image(ctx
, 3, texObj
, texObj
->Target
, level
,
3876 xoffset
, yoffset
, zoffset
,
3877 x
, y
, width
, height
, self
);
3881 check_clear_tex_image(struct gl_context
*ctx
,
3882 const char *function
,
3883 struct gl_texture_image
*texImage
,
3884 GLenum format
, GLenum type
,
3886 GLubyte
*clearValue
)
3888 struct gl_texture_object
*texObj
= texImage
->TexObject
;
3889 static const GLubyte zeroData
[MAX_PIXEL_BYTES
];
3890 GLenum internalFormat
= texImage
->InternalFormat
;
3893 if (texObj
->Target
== GL_TEXTURE_BUFFER
) {
3894 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3895 "%s(buffer texture)", function
);
3899 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
3900 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3901 "%s(compressed texture)", function
);
3905 err
= _mesa_error_check_format_and_type(ctx
, format
, type
);
3906 if (err
!= GL_NO_ERROR
) {
3907 _mesa_error(ctx
, err
,
3908 "%s(incompatible format = %s, type = %s)",
3910 _mesa_enum_to_string(format
),
3911 _mesa_enum_to_string(type
));
3915 /* make sure internal format and format basically agree */
3916 if (!texture_formats_agree(internalFormat
, format
)) {
3917 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3918 "%s(incompatible internalFormat = %s, format = %s)",
3920 _mesa_enum_to_string(internalFormat
),
3921 _mesa_enum_to_string(format
));
3925 if (ctx
->Version
>= 30 || ctx
->Extensions
.EXT_texture_integer
) {
3926 /* both source and dest must be integer-valued, or neither */
3927 if (_mesa_is_format_integer_color(texImage
->TexFormat
) !=
3928 _mesa_is_enum_format_integer(format
)) {
3929 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3930 "%s(integer/non-integer format mismatch)",
3936 if (!_mesa_texstore(ctx
,
3938 texImage
->_BaseFormat
,
3939 texImage
->TexFormat
,
3940 0, /* dstRowStride */
3942 1, 1, 1, /* srcWidth/Height/Depth */
3944 data
? data
: zeroData
,
3945 &ctx
->DefaultPacking
)) {
3946 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid format)", function
);
3953 static struct gl_texture_object
*
3954 get_tex_obj_for_clear(struct gl_context
*ctx
,
3955 const char *function
,
3958 struct gl_texture_object
*texObj
;
3961 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(zero texture)", function
);
3965 texObj
= _mesa_lookup_texture(ctx
, texture
);
3967 if (texObj
== NULL
) {
3968 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(non-gen name)", function
);
3972 if (texObj
->Target
== 0) {
3973 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(unbound tex)", function
);
3981 get_tex_images_for_clear(struct gl_context
*ctx
,
3982 const char *function
,
3983 struct gl_texture_object
*texObj
,
3985 struct gl_texture_image
**texImages
)
3990 if (level
< 0 || level
>= MAX_TEXTURE_LEVELS
) {
3991 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid level)", function
);
3995 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3996 for (i
= 0; i
< MAX_FACES
; i
++) {
3997 target
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ i
;
3999 texImages
[i
] = _mesa_select_tex_image(texObj
, target
, level
);
4000 if (texImages
[i
] == NULL
) {
4001 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4002 "%s(invalid level)", function
);
4010 texImages
[0] = _mesa_select_tex_image(texObj
, texObj
->Target
, level
);
4012 if (texImages
[0] == NULL
) {
4013 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid level)", function
);
4021 _mesa_ClearTexSubImage( GLuint texture
, GLint level
,
4022 GLint xoffset
, GLint yoffset
, GLint zoffset
,
4023 GLsizei width
, GLsizei height
, GLsizei depth
,
4024 GLenum format
, GLenum type
, const void *data
)
4026 GET_CURRENT_CONTEXT(ctx
);
4027 struct gl_texture_object
*texObj
;
4028 struct gl_texture_image
*texImages
[MAX_FACES
];
4029 GLubyte clearValue
[MAX_FACES
][MAX_PIXEL_BYTES
];
4031 int minDepth
, maxDepth
;
4033 texObj
= get_tex_obj_for_clear(ctx
, "glClearTexSubImage", texture
);
4038 _mesa_lock_texture(ctx
, texObj
);
4040 numImages
= get_tex_images_for_clear(ctx
, "glClearTexSubImage",
4041 texObj
, level
, texImages
);
4045 if (numImages
== 1) {
4046 minDepth
= -(int) texImages
[0]->Border
;
4047 maxDepth
= texImages
[0]->Depth
;
4050 maxDepth
= numImages
;
4053 if (xoffset
< -(GLint
) texImages
[0]->Border
||
4054 yoffset
< -(GLint
) texImages
[0]->Border
||
4055 zoffset
< minDepth
||
4059 xoffset
+ width
> texImages
[0]->Width
||
4060 yoffset
+ height
> texImages
[0]->Height
||
4061 zoffset
+ depth
> maxDepth
) {
4062 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4063 "glClearSubTexImage(invalid dimensions)");
4067 if (numImages
== 1) {
4068 if (check_clear_tex_image(ctx
, "glClearTexSubImage",
4070 format
, type
, data
, clearValue
[0])) {
4071 ctx
->Driver
.ClearTexSubImage(ctx
,
4073 xoffset
, yoffset
, zoffset
,
4074 width
, height
, depth
,
4075 data
? clearValue
[0] : NULL
);
4078 for (i
= zoffset
; i
< zoffset
+ depth
; i
++) {
4079 if (!check_clear_tex_image(ctx
, "glClearTexSubImage",
4081 format
, type
, data
, clearValue
[i
]))
4084 for (i
= zoffset
; i
< zoffset
+ depth
; i
++) {
4085 ctx
->Driver
.ClearTexSubImage(ctx
,
4087 xoffset
, yoffset
, 0,
4089 data
? clearValue
[i
] : NULL
);
4094 _mesa_unlock_texture(ctx
, texObj
);
4098 _mesa_ClearTexImage( GLuint texture
, GLint level
,
4099 GLenum format
, GLenum type
, const void *data
)
4101 GET_CURRENT_CONTEXT(ctx
);
4102 struct gl_texture_object
*texObj
;
4103 struct gl_texture_image
*texImages
[MAX_FACES
];
4104 GLubyte clearValue
[MAX_FACES
][MAX_PIXEL_BYTES
];
4107 texObj
= get_tex_obj_for_clear(ctx
, "glClearTexImage", texture
);
4112 _mesa_lock_texture(ctx
, texObj
);
4114 numImages
= get_tex_images_for_clear(ctx
, "glClearTexImage",
4115 texObj
, level
, texImages
);
4117 for (i
= 0; i
< numImages
; i
++) {
4118 if (!check_clear_tex_image(ctx
, "glClearTexImage",
4125 for (i
= 0; i
< numImages
; i
++) {
4126 ctx
->Driver
.ClearTexSubImage(ctx
, texImages
[i
],
4127 -(GLint
) texImages
[i
]->Border
, /* xoffset */
4128 -(GLint
) texImages
[i
]->Border
, /* yoffset */
4129 -(GLint
) texImages
[i
]->Border
, /* zoffset */
4130 texImages
[i
]->Width
,
4131 texImages
[i
]->Height
,
4132 texImages
[i
]->Depth
,
4133 data
? clearValue
[i
] : NULL
);
4137 _mesa_unlock_texture(ctx
, texObj
);
4143 /**********************************************************************/
4144 /****** Compressed Textures ******/
4145 /**********************************************************************/
4149 * Target checking for glCompressedTexSubImage[123]D().
4150 * \return GL_TRUE if error, GL_FALSE if no error
4151 * Must come before other error checking so that the texture object can
4152 * be correctly retrieved using _mesa_get_current_tex_object.
4155 compressed_subtexture_target_check(struct gl_context
*ctx
, GLenum target
,
4156 GLint dims
, GLenum format
, bool dsa
,
4161 if (dsa
&& target
== GL_TEXTURE_RECTANGLE
) {
4162 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid target %s)", caller
,
4163 _mesa_enum_to_string(target
));
4173 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
4174 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
4175 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
4176 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
4177 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
4178 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
4179 targetOK
= ctx
->Extensions
.ARB_texture_cube_map
;
4182 targetOK
= GL_FALSE
;
4188 case GL_TEXTURE_CUBE_MAP
:
4189 targetOK
= dsa
&& ctx
->Extensions
.ARB_texture_cube_map
;
4191 case GL_TEXTURE_2D_ARRAY
:
4192 targetOK
= _mesa_is_gles3(ctx
) ||
4193 (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
);
4195 case GL_TEXTURE_CUBE_MAP_ARRAY
:
4196 targetOK
= ctx
->Extensions
.ARB_texture_cube_map_array
;
4201 * OpenGL 4.5 spec (30.10.2014) says in Section 8.7 Compressed Texture
4203 * "An INVALID_OPERATION error is generated by
4204 * CompressedTex*SubImage3D if the internal format of the texture
4205 * is one of the EAC, ETC2, or RGTC formats and either border is
4206 * non-zero, or the effective target for the texture is not
4207 * TEXTURE_2D_ARRAY."
4209 * NOTE: that's probably a spec error. It should probably say
4210 * "... or the effective target for the texture is not
4211 * TEXTURE_2D_ARRAY, TEXTURE_CUBE_MAP, nor
4212 * GL_TEXTURE_CUBE_MAP_ARRAY."
4213 * since those targets are 2D images and they support all compression
4216 * Instead of listing all these, just list those which are allowed,
4217 * which is (at this time) only bptc. Otherwise we'd say s3tc (and
4218 * more) are valid here, which they are not, but of course not
4219 * mentioned by core spec.
4222 /* These are the only 3D compression formats supported at this time */
4223 case GL_COMPRESSED_RGBA_BPTC_UNORM
:
4224 case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM
:
4225 case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT
:
4226 case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
:
4230 /* invalid format */
4231 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4232 "%s(invalid target %s for format %s)", caller
,
4233 _mesa_enum_to_string(target
),
4234 _mesa_enum_to_string(format
));
4239 targetOK
= GL_FALSE
;
4245 /* no 1D compressed textures at this time */
4246 targetOK
= GL_FALSE
;
4251 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", caller
,
4252 _mesa_enum_to_string(target
));
4260 * Error checking for glCompressedTexSubImage[123]D().
4261 * \return GL_TRUE if error, GL_FALSE if no error
4264 compressed_subtexture_error_check(struct gl_context
*ctx
, GLint dims
,
4265 const struct gl_texture_object
*texObj
,
4266 GLenum target
, GLint level
,
4267 GLint xoffset
, GLint yoffset
, GLint zoffset
,
4268 GLsizei width
, GLsizei height
, GLsizei depth
,
4269 GLenum format
, GLsizei imageSize
,
4270 const GLvoid
*data
, const char *callerName
)
4272 struct gl_texture_image
*texImage
;
4275 /* this will catch any invalid compressed format token */
4276 if (!_mesa_is_compressed_format(ctx
, format
)) {
4277 _mesa_error(ctx
, GL_INVALID_ENUM
,
4278 "%s(format)", callerName
);
4282 if (level
< 0 || level
>= _mesa_max_texture_levels(ctx
, target
)) {
4283 _mesa_error(ctx
, GL_INVALID_VALUE
,
4289 /* validate the bound PBO, if any */
4290 if (!_mesa_validate_pbo_source_compressed(ctx
, dims
, &ctx
->Unpack
,
4291 imageSize
, data
, callerName
)) {
4295 /* Check for invalid pixel storage modes */
4296 if (!_mesa_compressed_pixel_storage_error_check(ctx
, dims
,
4297 &ctx
->Unpack
, callerName
)) {
4301 expectedSize
= compressed_tex_size(width
, height
, depth
, format
);
4302 if (expectedSize
!= imageSize
) {
4303 _mesa_error(ctx
, GL_INVALID_VALUE
,
4305 callerName
, imageSize
);
4309 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
4311 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4312 "%s(invalid texture image)",
4317 if ((GLint
) format
!= texImage
->InternalFormat
) {
4318 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4320 callerName
, format
);
4324 if (compressedteximage_only_format(ctx
, format
)) {
4325 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4326 "%s(format=0x%x cannot be updated)",
4327 callerName
, format
);
4331 if (error_check_subtexture_dimensions(ctx
, dims
,
4332 texImage
, xoffset
, yoffset
, zoffset
,
4333 width
, height
, depth
,
4343 _mesa_CompressedTexImage1D(GLenum target
, GLint level
,
4344 GLenum internalFormat
, GLsizei width
,
4345 GLint border
, GLsizei imageSize
,
4348 GET_CURRENT_CONTEXT(ctx
);
4349 teximage(ctx
, GL_TRUE
, 1, target
, level
, internalFormat
,
4350 width
, 1, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
4355 _mesa_CompressedTexImage2D(GLenum target
, GLint level
,
4356 GLenum internalFormat
, GLsizei width
,
4357 GLsizei height
, GLint border
, GLsizei imageSize
,
4360 GET_CURRENT_CONTEXT(ctx
);
4361 teximage(ctx
, GL_TRUE
, 2, target
, level
, internalFormat
,
4362 width
, height
, 1, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
4367 _mesa_CompressedTexImage3D(GLenum target
, GLint level
,
4368 GLenum internalFormat
, GLsizei width
,
4369 GLsizei height
, GLsizei depth
, GLint border
,
4370 GLsizei imageSize
, const GLvoid
*data
)
4372 GET_CURRENT_CONTEXT(ctx
);
4373 teximage(ctx
, GL_TRUE
, 3, target
, level
, internalFormat
,
4374 width
, height
, depth
, border
, GL_NONE
, GL_NONE
, imageSize
, data
);
4379 * Common helper for glCompressedTexSubImage1/2/3D() and
4380 * glCompressedTextureSubImage1/2/3D().
4383 _mesa_compressed_texture_sub_image(struct gl_context
*ctx
, GLuint dims
,
4384 struct gl_texture_object
*texObj
,
4385 struct gl_texture_image
*texImage
,
4386 GLenum target
, GLint level
,
4387 GLint xoffset
, GLint yoffset
,
4389 GLsizei width
, GLsizei height
,
4391 GLenum format
, GLsizei imageSize
,
4394 FLUSH_VERTICES(ctx
, 0);
4396 _mesa_lock_texture(ctx
, texObj
);
4398 if (width
> 0 && height
> 0 && depth
> 0) {
4399 ctx
->Driver
.CompressedTexSubImage(ctx
, dims
, texImage
,
4400 xoffset
, yoffset
, zoffset
,
4401 width
, height
, depth
,
4402 format
, imageSize
, data
);
4404 check_gen_mipmap(ctx
, target
, texObj
, level
);
4406 /* NOTE: Don't signal _NEW_TEXTURE since we've only changed
4407 * the texel data, not the texture format, size, etc.
4411 _mesa_unlock_texture(ctx
, texObj
);
4416 _mesa_CompressedTexSubImage1D(GLenum target
, GLint level
, GLint xoffset
,
4417 GLsizei width
, GLenum format
,
4418 GLsizei imageSize
, const GLvoid
*data
)
4420 struct gl_texture_object
*texObj
;
4421 struct gl_texture_image
*texImage
;
4423 GET_CURRENT_CONTEXT(ctx
);
4425 if (compressed_subtexture_target_check(ctx
, target
, 1, format
, false,
4426 "glCompressedTexSubImage1D")) {
4430 texObj
= _mesa_get_current_tex_object(ctx
, target
);
4434 if (compressed_subtexture_error_check(ctx
, 1, texObj
, target
,
4435 level
, xoffset
, 0, 0,
4437 format
, imageSize
, data
,
4438 "glCompressedTexSubImage1D")) {
4442 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
4445 _mesa_compressed_texture_sub_image(ctx
, 1, texObj
, texImage
, target
, level
,
4446 xoffset
, 0, 0, width
, 1, 1,
4447 format
, imageSize
, data
);
4451 _mesa_CompressedTextureSubImage1D(GLuint texture
, GLint level
, GLint xoffset
,
4452 GLsizei width
, GLenum format
,
4453 GLsizei imageSize
, const GLvoid
*data
)
4455 struct gl_texture_object
*texObj
;
4456 struct gl_texture_image
*texImage
;
4458 GET_CURRENT_CONTEXT(ctx
);
4460 texObj
= _mesa_lookup_texture_err(ctx
, texture
,
4461 "glCompressedTextureSubImage1D");
4465 if (compressed_subtexture_target_check(ctx
, texObj
->Target
, 1, format
, true,
4466 "glCompressedTextureSubImage1D")) {
4470 if (compressed_subtexture_error_check(ctx
, 1, texObj
, texObj
->Target
,
4471 level
, xoffset
, 0, 0,
4473 format
, imageSize
, data
,
4474 "glCompressedTextureSubImage1D")) {
4478 texImage
= _mesa_select_tex_image(texObj
, texObj
->Target
, level
);
4481 _mesa_compressed_texture_sub_image(ctx
, 1, texObj
, texImage
,
4482 texObj
->Target
, level
,
4483 xoffset
, 0, 0, width
, 1, 1,
4484 format
, imageSize
, data
);
4489 _mesa_CompressedTexSubImage2D(GLenum target
, GLint level
, GLint xoffset
,
4490 GLint yoffset
, GLsizei width
, GLsizei height
,
4491 GLenum format
, GLsizei imageSize
,
4494 struct gl_texture_object
*texObj
;
4495 struct gl_texture_image
*texImage
;
4497 GET_CURRENT_CONTEXT(ctx
);
4499 if (compressed_subtexture_target_check(ctx
, target
, 2, format
, false,
4500 "glCompressedTexSubImage2D")) {
4504 texObj
= _mesa_get_current_tex_object(ctx
, target
);
4508 if (compressed_subtexture_error_check(ctx
, 2, texObj
, target
,
4509 level
, xoffset
, yoffset
, 0,
4511 format
, imageSize
, data
,
4512 "glCompressedTexSubImage2D")) {
4517 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
4520 _mesa_compressed_texture_sub_image(ctx
, 2, texObj
, texImage
, target
, level
,
4521 xoffset
, yoffset
, 0, width
, height
, 1,
4522 format
, imageSize
, data
);
4526 _mesa_CompressedTextureSubImage2D(GLuint texture
, GLint level
, GLint xoffset
,
4528 GLsizei width
, GLsizei height
,
4529 GLenum format
, GLsizei imageSize
,
4532 struct gl_texture_object
*texObj
;
4533 struct gl_texture_image
*texImage
;
4535 GET_CURRENT_CONTEXT(ctx
);
4537 texObj
= _mesa_lookup_texture_err(ctx
, texture
,
4538 "glCompressedTextureSubImage2D");
4542 if (compressed_subtexture_target_check(ctx
, texObj
->Target
, 2, format
, true,
4543 "glCompressedTextureSubImage2D")) {
4547 if (compressed_subtexture_error_check(ctx
, 2, texObj
, texObj
->Target
,
4548 level
, xoffset
, yoffset
, 0,
4550 format
, imageSize
, data
,
4551 "glCompressedTextureSubImage2D")) {
4555 texImage
= _mesa_select_tex_image(texObj
, texObj
->Target
, level
);
4558 _mesa_compressed_texture_sub_image(ctx
, 2, texObj
, texImage
,
4559 texObj
->Target
, level
,
4560 xoffset
, yoffset
, 0, width
, height
, 1,
4561 format
, imageSize
, data
);
4565 _mesa_CompressedTexSubImage3D(GLenum target
, GLint level
, GLint xoffset
,
4566 GLint yoffset
, GLint zoffset
, GLsizei width
,
4567 GLsizei height
, GLsizei depth
, GLenum format
,
4568 GLsizei imageSize
, const GLvoid
*data
)
4570 struct gl_texture_object
*texObj
;
4571 struct gl_texture_image
*texImage
;
4573 GET_CURRENT_CONTEXT(ctx
);
4575 if (compressed_subtexture_target_check(ctx
, target
, 3, format
, false,
4576 "glCompressedTexSubImage3D")) {
4580 texObj
= _mesa_get_current_tex_object(ctx
, target
);
4584 if (compressed_subtexture_error_check(ctx
, 3, texObj
, target
,
4585 level
, xoffset
, yoffset
, zoffset
,
4586 width
, height
, depth
,
4587 format
, imageSize
, data
,
4588 "glCompressedTexSubImage3D")) {
4593 texImage
= _mesa_select_tex_image(texObj
, target
, level
);
4596 _mesa_compressed_texture_sub_image(ctx
, 3, texObj
, texImage
, target
, level
,
4597 xoffset
, yoffset
, zoffset
,
4598 width
, height
, depth
,
4599 format
, imageSize
, data
);
4603 _mesa_CompressedTextureSubImage3D(GLuint texture
, GLint level
, GLint xoffset
,
4604 GLint yoffset
, GLint zoffset
, GLsizei width
,
4605 GLsizei height
, GLsizei depth
,
4606 GLenum format
, GLsizei imageSize
,
4609 struct gl_texture_object
*texObj
;
4610 struct gl_texture_image
*texImage
;
4612 GET_CURRENT_CONTEXT(ctx
);
4614 texObj
= _mesa_lookup_texture_err(ctx
, texture
,
4615 "glCompressedTextureSubImage3D");
4619 if (compressed_subtexture_target_check(ctx
, texObj
->Target
, 3, format
, true,
4620 "glCompressedTextureSubImage3D")) {
4624 if (compressed_subtexture_error_check(ctx
, 3, texObj
, texObj
->Target
,
4625 level
, xoffset
, yoffset
, zoffset
,
4626 width
, height
, depth
,
4627 format
, imageSize
, data
,
4628 "glCompressedTextureSubImage3D")) {
4632 /* Must handle special case GL_TEXTURE_CUBE_MAP. */
4633 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
4634 const char *pixels
= data
;
4638 /* Make sure the texture object is a proper cube.
4639 * (See texturesubimage in teximage.c for details on why this check is
4642 if (!_mesa_cube_level_complete(texObj
, level
)) {
4643 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4644 "glCompressedTextureSubImage3D(cube map incomplete)");
4648 /* Copy in each face. */
4649 for (i
= 0; i
< 6; ++i
) {
4650 texImage
= texObj
->Image
[i
][level
];
4653 _mesa_compressed_texture_sub_image(ctx
, 3, texObj
, texImage
,
4654 texObj
->Target
, level
,
4655 xoffset
, yoffset
, zoffset
,
4657 format
, imageSize
, pixels
);
4659 /* Compressed images don't have a client format */
4660 image_stride
= _mesa_format_image_size(texImage
->TexFormat
,
4662 texImage
->Height
, 1);
4664 pixels
+= image_stride
;
4665 imageSize
-= image_stride
;
4669 texImage
= _mesa_select_tex_image(texObj
, texObj
->Target
, level
);
4672 _mesa_compressed_texture_sub_image(ctx
, 3, texObj
, texImage
,
4673 texObj
->Target
, level
,
4674 xoffset
, yoffset
, zoffset
,
4675 width
, height
, depth
,
4676 format
, imageSize
, data
);
4681 get_texbuffer_format(const struct gl_context
*ctx
, GLenum internalFormat
)
4683 if (ctx
->API
!= API_OPENGL_CORE
) {
4684 switch (internalFormat
) {
4686 return MESA_FORMAT_A_UNORM8
;
4688 return MESA_FORMAT_A_UNORM16
;
4689 case GL_ALPHA16F_ARB
:
4690 return MESA_FORMAT_A_FLOAT16
;
4691 case GL_ALPHA32F_ARB
:
4692 return MESA_FORMAT_A_FLOAT32
;
4693 case GL_ALPHA8I_EXT
:
4694 return MESA_FORMAT_A_SINT8
;
4695 case GL_ALPHA16I_EXT
:
4696 return MESA_FORMAT_A_SINT16
;
4697 case GL_ALPHA32I_EXT
:
4698 return MESA_FORMAT_A_SINT32
;
4699 case GL_ALPHA8UI_EXT
:
4700 return MESA_FORMAT_A_UINT8
;
4701 case GL_ALPHA16UI_EXT
:
4702 return MESA_FORMAT_A_UINT16
;
4703 case GL_ALPHA32UI_EXT
:
4704 return MESA_FORMAT_A_UINT32
;
4706 return MESA_FORMAT_L_UNORM8
;
4707 case GL_LUMINANCE16
:
4708 return MESA_FORMAT_L_UNORM16
;
4709 case GL_LUMINANCE16F_ARB
:
4710 return MESA_FORMAT_L_FLOAT16
;
4711 case GL_LUMINANCE32F_ARB
:
4712 return MESA_FORMAT_L_FLOAT32
;
4713 case GL_LUMINANCE8I_EXT
:
4714 return MESA_FORMAT_L_SINT8
;
4715 case GL_LUMINANCE16I_EXT
:
4716 return MESA_FORMAT_L_SINT16
;
4717 case GL_LUMINANCE32I_EXT
:
4718 return MESA_FORMAT_L_SINT32
;
4719 case GL_LUMINANCE8UI_EXT
:
4720 return MESA_FORMAT_L_UINT8
;
4721 case GL_LUMINANCE16UI_EXT
:
4722 return MESA_FORMAT_L_UINT16
;
4723 case GL_LUMINANCE32UI_EXT
:
4724 return MESA_FORMAT_L_UINT32
;
4725 case GL_LUMINANCE8_ALPHA8
:
4726 return MESA_FORMAT_L8A8_UNORM
;
4727 case GL_LUMINANCE16_ALPHA16
:
4728 return MESA_FORMAT_L16A16_UNORM
;
4729 case GL_LUMINANCE_ALPHA16F_ARB
:
4730 return MESA_FORMAT_LA_FLOAT16
;
4731 case GL_LUMINANCE_ALPHA32F_ARB
:
4732 return MESA_FORMAT_LA_FLOAT32
;
4733 case GL_LUMINANCE_ALPHA8I_EXT
:
4734 return MESA_FORMAT_LA_SINT8
;
4735 case GL_LUMINANCE_ALPHA16I_EXT
:
4736 return MESA_FORMAT_LA_SINT16
;
4737 case GL_LUMINANCE_ALPHA32I_EXT
:
4738 return MESA_FORMAT_LA_SINT32
;
4739 case GL_LUMINANCE_ALPHA8UI_EXT
:
4740 return MESA_FORMAT_LA_UINT8
;
4741 case GL_LUMINANCE_ALPHA16UI_EXT
:
4742 return MESA_FORMAT_LA_UINT16
;
4743 case GL_LUMINANCE_ALPHA32UI_EXT
:
4744 return MESA_FORMAT_LA_UINT32
;
4746 return MESA_FORMAT_I_UNORM8
;
4747 case GL_INTENSITY16
:
4748 return MESA_FORMAT_I_UNORM16
;
4749 case GL_INTENSITY16F_ARB
:
4750 return MESA_FORMAT_I_FLOAT16
;
4751 case GL_INTENSITY32F_ARB
:
4752 return MESA_FORMAT_I_FLOAT32
;
4753 case GL_INTENSITY8I_EXT
:
4754 return MESA_FORMAT_I_SINT8
;
4755 case GL_INTENSITY16I_EXT
:
4756 return MESA_FORMAT_I_SINT16
;
4757 case GL_INTENSITY32I_EXT
:
4758 return MESA_FORMAT_I_SINT32
;
4759 case GL_INTENSITY8UI_EXT
:
4760 return MESA_FORMAT_I_UINT8
;
4761 case GL_INTENSITY16UI_EXT
:
4762 return MESA_FORMAT_I_UINT16
;
4763 case GL_INTENSITY32UI_EXT
:
4764 return MESA_FORMAT_I_UINT32
;
4770 if (ctx
->API
== API_OPENGL_CORE
&&
4771 ctx
->Extensions
.ARB_texture_buffer_object_rgb32
) {
4772 switch (internalFormat
) {
4774 return MESA_FORMAT_RGB_FLOAT32
;
4776 return MESA_FORMAT_RGB_UINT32
;
4778 return MESA_FORMAT_RGB_SINT32
;
4784 switch (internalFormat
) {
4786 return MESA_FORMAT_R8G8B8A8_UNORM
;
4788 return MESA_FORMAT_RGBA_UNORM16
;
4789 case GL_RGBA16F_ARB
:
4790 return MESA_FORMAT_RGBA_FLOAT16
;
4791 case GL_RGBA32F_ARB
:
4792 return MESA_FORMAT_RGBA_FLOAT32
;
4794 return MESA_FORMAT_RGBA_SINT8
;
4795 case GL_RGBA16I_EXT
:
4796 return MESA_FORMAT_RGBA_SINT16
;
4797 case GL_RGBA32I_EXT
:
4798 return MESA_FORMAT_RGBA_SINT32
;
4799 case GL_RGBA8UI_EXT
:
4800 return MESA_FORMAT_RGBA_UINT8
;
4801 case GL_RGBA16UI_EXT
:
4802 return MESA_FORMAT_RGBA_UINT16
;
4803 case GL_RGBA32UI_EXT
:
4804 return MESA_FORMAT_RGBA_UINT32
;
4807 return MESA_FORMAT_R8G8_UNORM
;
4809 return MESA_FORMAT_R16G16_UNORM
;
4811 return MESA_FORMAT_RG_FLOAT16
;
4813 return MESA_FORMAT_RG_FLOAT32
;
4815 return MESA_FORMAT_RG_SINT8
;
4817 return MESA_FORMAT_RG_SINT16
;
4819 return MESA_FORMAT_RG_SINT32
;
4821 return MESA_FORMAT_RG_UINT8
;
4823 return MESA_FORMAT_RG_UINT16
;
4825 return MESA_FORMAT_RG_UINT32
;
4828 return MESA_FORMAT_R_UNORM8
;
4830 return MESA_FORMAT_R_UNORM16
;
4832 return MESA_FORMAT_R_FLOAT16
;
4834 return MESA_FORMAT_R_FLOAT32
;
4836 return MESA_FORMAT_R_SINT8
;
4838 return MESA_FORMAT_R_SINT16
;
4840 return MESA_FORMAT_R_SINT32
;
4842 return MESA_FORMAT_R_UINT8
;
4844 return MESA_FORMAT_R_UINT16
;
4846 return MESA_FORMAT_R_UINT32
;
4849 return MESA_FORMAT_NONE
;
4855 _mesa_validate_texbuffer_format(const struct gl_context
*ctx
,
4856 GLenum internalFormat
)
4858 mesa_format format
= get_texbuffer_format(ctx
, internalFormat
);
4861 if (format
== MESA_FORMAT_NONE
)
4862 return MESA_FORMAT_NONE
;
4864 datatype
= _mesa_get_format_datatype(format
);
4866 /* The GL_ARB_texture_buffer_object spec says:
4868 * "If ARB_texture_float is not supported, references to the
4869 * floating-point internal formats provided by that extension should be
4870 * removed, and such formats may not be passed to TexBufferARB."
4872 * As a result, GL_HALF_FLOAT internal format depends on both
4873 * GL_ARB_texture_float and GL_ARB_half_float_pixel.
4875 if ((datatype
== GL_FLOAT
|| datatype
== GL_HALF_FLOAT
) &&
4876 !ctx
->Extensions
.ARB_texture_float
)
4877 return MESA_FORMAT_NONE
;
4879 if (!ctx
->Extensions
.ARB_texture_rg
) {
4880 GLenum base_format
= _mesa_get_format_base_format(format
);
4881 if (base_format
== GL_R
|| base_format
== GL_RG
)
4882 return MESA_FORMAT_NONE
;
4885 if (!ctx
->Extensions
.ARB_texture_buffer_object_rgb32
) {
4886 GLenum base_format
= _mesa_get_format_base_format(format
);
4887 if (base_format
== GL_RGB
)
4888 return MESA_FORMAT_NONE
;
4895 _mesa_texture_buffer_range(struct gl_context
*ctx
,
4896 struct gl_texture_object
*texObj
,
4897 GLenum internalFormat
,
4898 struct gl_buffer_object
*bufObj
,
4899 GLintptr offset
, GLsizeiptr size
,
4904 /* NOTE: ARB_texture_buffer_object has interactions with
4905 * the compatibility profile that are not implemented.
4907 if (!(ctx
->API
== API_OPENGL_CORE
&&
4908 ctx
->Extensions
.ARB_texture_buffer_object
)) {
4909 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4910 "%s(ARB_texture_buffer_object is not"
4911 " implemented for the compatibility profile)", caller
);
4915 format
= _mesa_validate_texbuffer_format(ctx
, internalFormat
);
4916 if (format
== MESA_FORMAT_NONE
) {
4917 _mesa_error(ctx
, GL_INVALID_ENUM
,
4918 "%s(internalFormat 0x%x)", caller
, internalFormat
);
4922 FLUSH_VERTICES(ctx
, 0);
4924 _mesa_lock_texture(ctx
, texObj
);
4926 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, bufObj
);
4927 texObj
->BufferObjectFormat
= internalFormat
;
4928 texObj
->_BufferObjectFormat
= format
;
4929 texObj
->BufferOffset
= offset
;
4930 texObj
->BufferSize
= size
;
4932 _mesa_unlock_texture(ctx
, texObj
);
4934 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewTextureBuffer
;
4937 bufObj
->UsageHistory
|= USAGE_TEXTURE_BUFFER
;
4943 * Make sure the texture buffer target is GL_TEXTURE_BUFFER.
4944 * Return true if it is, and return false if it is not
4945 * (and throw INVALID ENUM as dictated in the OpenGL 4.5
4946 * core spec, 02.02.2015, PDF page 245).
4949 check_texture_buffer_target(struct gl_context
*ctx
, GLenum target
,
4952 if (target
!= GL_TEXTURE_BUFFER_ARB
) {
4953 _mesa_error(ctx
, GL_INVALID_ENUM
,
4954 "%s(texture target is not GL_TEXTURE_BUFFER)", caller
);
4962 * Check for errors related to the texture buffer range.
4963 * Return false if errors are found, true if none are found.
4966 check_texture_buffer_range(struct gl_context
*ctx
,
4967 struct gl_buffer_object
*bufObj
,
4968 GLintptr offset
, GLsizeiptr size
,
4971 /* OpenGL 4.5 core spec (02.02.2015) says in Section 8.9 Buffer
4972 * Textures (PDF page 245):
4973 * "An INVALID_VALUE error is generated if offset is negative, if
4974 * size is less than or equal to zero, or if offset + size is greater
4975 * than the value of BUFFER_SIZE for the buffer bound to target."
4978 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(offset=%d < 0)", caller
,
4984 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(size=%d <= 0)", caller
,
4989 if (offset
+ size
> bufObj
->Size
) {
4990 _mesa_error(ctx
, GL_INVALID_VALUE
,
4991 "%s(offset=%d + size=%d > buffer_size=%d)", caller
,
4992 (int) offset
, (int) size
, (int) bufObj
->Size
);
4996 /* OpenGL 4.5 core spec (02.02.2015) says in Section 8.9 Buffer
4997 * Textures (PDF page 245):
4998 * "An INVALID_VALUE error is generated if offset is not an integer
4999 * multiple of the value of TEXTURE_BUFFER_OFFSET_ALIGNMENT."
5001 if (offset
% ctx
->Const
.TextureBufferOffsetAlignment
) {
5002 _mesa_error(ctx
, GL_INVALID_VALUE
,
5003 "%s(invalid offset alignment)", caller
);
5011 /** GL_ARB_texture_buffer_object */
5013 _mesa_TexBuffer(GLenum target
, GLenum internalFormat
, GLuint buffer
)
5015 struct gl_texture_object
*texObj
;
5016 struct gl_buffer_object
*bufObj
;
5018 GET_CURRENT_CONTEXT(ctx
);
5020 /* Need to catch a bad target before it gets to
5021 * _mesa_get_current_tex_object.
5023 if (!check_texture_buffer_target(ctx
, target
, "glTexBuffer"))
5027 bufObj
= _mesa_lookup_bufferobj_err(ctx
, buffer
, "glTexBuffer");
5033 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5037 _mesa_texture_buffer_range(ctx
, texObj
, internalFormat
, bufObj
, 0,
5038 buffer
? -1 : 0, "glTexBuffer");
5042 /** GL_ARB_texture_buffer_range */
5044 _mesa_TexBufferRange(GLenum target
, GLenum internalFormat
, GLuint buffer
,
5045 GLintptr offset
, GLsizeiptr size
)
5047 struct gl_texture_object
*texObj
;
5048 struct gl_buffer_object
*bufObj
;
5050 GET_CURRENT_CONTEXT(ctx
);
5052 /* Need to catch a bad target before it gets to
5053 * _mesa_get_current_tex_object.
5055 if (!check_texture_buffer_target(ctx
, target
, "glTexBufferRange"))
5059 bufObj
= _mesa_lookup_bufferobj_err(ctx
, buffer
, "glTexBufferRange");
5063 if (!check_texture_buffer_range(ctx
, bufObj
, offset
, size
,
5064 "glTexBufferRange"))
5068 /* OpenGL 4.5 core spec (02.02.2015) says in Section 8.9 Buffer
5069 * Textures (PDF page 254):
5070 * "If buffer is zero, then any buffer object attached to the buffer
5071 * texture is detached, the values offset and size are ignored and
5072 * the state for offset and size for the buffer texture are reset to
5080 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5084 _mesa_texture_buffer_range(ctx
, texObj
, internalFormat
, bufObj
,
5085 offset
, size
, "glTexBufferRange");
5089 _mesa_TextureBuffer(GLuint texture
, GLenum internalFormat
, GLuint buffer
)
5091 struct gl_texture_object
*texObj
;
5092 struct gl_buffer_object
*bufObj
;
5094 GET_CURRENT_CONTEXT(ctx
);
5097 bufObj
= _mesa_lookup_bufferobj_err(ctx
, buffer
, "glTextureBuffer");
5103 /* Get the texture object by Name. */
5104 texObj
= _mesa_lookup_texture_err(ctx
, texture
, "glTextureBuffer");
5108 if (!check_texture_buffer_target(ctx
, texObj
->Target
, "glTextureBuffer"))
5111 _mesa_texture_buffer_range(ctx
, texObj
, internalFormat
,
5112 bufObj
, 0, buffer
? -1 : 0, "glTextureBuffer");
5116 _mesa_TextureBufferRange(GLuint texture
, GLenum internalFormat
, GLuint buffer
,
5117 GLintptr offset
, GLsizeiptr size
)
5119 struct gl_texture_object
*texObj
;
5120 struct gl_buffer_object
*bufObj
;
5122 GET_CURRENT_CONTEXT(ctx
);
5125 bufObj
= _mesa_lookup_bufferobj_err(ctx
, buffer
,
5126 "glTextureBufferRange");
5130 if (!check_texture_buffer_range(ctx
, bufObj
, offset
, size
,
5131 "glTextureBufferRange"))
5135 /* OpenGL 4.5 core spec (02.02.2015) says in Section 8.9 Buffer
5136 * Textures (PDF page 254):
5137 * "If buffer is zero, then any buffer object attached to the buffer
5138 * texture is detached, the values offset and size are ignored and
5139 * the state for offset and size for the buffer texture are reset to
5147 /* Get the texture object by Name. */
5148 texObj
= _mesa_lookup_texture_err(ctx
, texture
, "glTextureBufferRange");
5152 if (!check_texture_buffer_target(ctx
, texObj
->Target
,
5153 "glTextureBufferRange"))
5156 _mesa_texture_buffer_range(ctx
, texObj
, internalFormat
,
5157 bufObj
, offset
, size
, "glTextureBufferRange");
5161 is_renderable_texture_format(struct gl_context
*ctx
, GLenum internalformat
)
5163 /* Everything that is allowed for renderbuffers,
5164 * except for a base format of GL_STENCIL_INDEX, unless supported.
5166 GLenum baseFormat
= _mesa_base_fbo_format(ctx
, internalformat
);
5167 if (ctx
->Extensions
.ARB_texture_stencil8
)
5168 return baseFormat
!= 0;
5170 return baseFormat
!= 0 && baseFormat
!= GL_STENCIL_INDEX
;
5174 /** GL_ARB_texture_multisample */
5176 check_multisample_target(GLuint dims
, GLenum target
, bool dsa
)
5179 case GL_TEXTURE_2D_MULTISAMPLE
:
5181 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
5182 return dims
== 2 && !dsa
;
5183 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
5185 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
5186 return dims
== 3 && !dsa
;
5194 texture_image_multisample(struct gl_context
*ctx
, GLuint dims
,
5195 struct gl_texture_object
*texObj
,
5196 GLenum target
, GLsizei samples
,
5197 GLint internalformat
, GLsizei width
,
5198 GLsizei height
, GLsizei depth
,
5199 GLboolean fixedsamplelocations
,
5200 GLboolean immutable
, const char *func
)
5202 struct gl_texture_image
*texImage
;
5203 GLboolean sizeOK
, dimensionsOK
, samplesOK
;
5204 mesa_format texFormat
;
5205 GLenum sample_count_error
;
5206 bool dsa
= strstr(func
, "ture") ? true : false;
5208 if (!((ctx
->Extensions
.ARB_texture_multisample
5209 && _mesa_is_desktop_gl(ctx
))) && !_mesa_is_gles31(ctx
)) {
5210 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(unsupported)", func
);
5215 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(samples < 1)", func
);
5219 if (!check_multisample_target(dims
, target
, dsa
)) {
5221 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(target)", func
);
5225 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
5230 /* check that the specified internalformat is color/depth/stencil-renderable;
5231 * refer GL3.1 spec 4.4.4
5234 if (immutable
&& !_mesa_is_legal_tex_storage_format(ctx
, internalformat
)) {
5235 _mesa_error(ctx
, GL_INVALID_ENUM
,
5236 "%s(internalformat=%s not legal for immutable-format)",
5237 func
, _mesa_enum_to_string(internalformat
));
5241 if (!is_renderable_texture_format(ctx
, internalformat
)) {
5242 /* Page 172 of OpenGL ES 3.1 spec says:
5243 * "An INVALID_ENUM error is generated if sizedinternalformat is not
5244 * color-renderable, depth-renderable, or stencil-renderable (as
5245 * defined in section 9.4).
5247 * (Same error is also defined for desktop OpenGL for multisample
5248 * teximage/texstorage functions.)
5250 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalformat=%s)", func
,
5251 _mesa_enum_to_string(internalformat
));
5255 sample_count_error
= _mesa_check_sample_count(ctx
, target
,
5256 internalformat
, samples
);
5257 samplesOK
= sample_count_error
== GL_NO_ERROR
;
5259 /* Page 254 of OpenGL 4.4 spec says:
5260 * "Proxy arrays for two-dimensional multisample and two-dimensional
5261 * multisample array textures are operated on in the same way when
5262 * TexImage2DMultisample is called with target specified as
5263 * PROXY_TEXTURE_2D_MULTISAMPLE, or TexImage3DMultisample is called
5264 * with target specified as PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY.
5265 * However, if samples is not supported, then no error is generated.
5267 if (!samplesOK
&& !_mesa_is_proxy_texture(target
)) {
5268 _mesa_error(ctx
, sample_count_error
, "%s(samples)", func
);
5272 if (immutable
&& (!texObj
|| (texObj
->Name
== 0))) {
5273 _mesa_error(ctx
, GL_INVALID_OPERATION
,
5274 "%s(texture object 0)",
5279 texImage
= _mesa_get_tex_image(ctx
, texObj
, 0, 0);
5281 if (texImage
== NULL
) {
5282 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s()", func
);
5286 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, 0,
5287 internalformat
, GL_NONE
, GL_NONE
);
5288 assert(texFormat
!= MESA_FORMAT_NONE
);
5290 dimensionsOK
= _mesa_legal_texture_dimensions(ctx
, target
, 0,
5291 width
, height
, depth
, 0);
5293 sizeOK
= ctx
->Driver
.TestProxyTexImage(ctx
, target
, 0, texFormat
,
5294 width
, height
, depth
, 0);
5296 if (_mesa_is_proxy_texture(target
)) {
5297 if (samplesOK
&& dimensionsOK
&& sizeOK
) {
5298 init_teximage_fields_ms(ctx
, texImage
, width
, height
, depth
, 0,
5299 internalformat
, texFormat
,
5300 samples
, fixedsamplelocations
);
5303 /* clear all image fields */
5304 clear_teximage_fields(texImage
);
5308 if (!dimensionsOK
) {
5309 _mesa_error(ctx
, GL_INVALID_VALUE
,
5310 "%s(invalid width or height)", func
);
5315 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s(texture too large)", func
);
5319 /* Check if texObj->Immutable is set */
5320 if (texObj
->Immutable
) {
5321 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(immutable)", func
);
5325 ctx
->Driver
.FreeTextureImageBuffer(ctx
, texImage
);
5327 init_teximage_fields_ms(ctx
, texImage
, width
, height
, depth
, 0,
5328 internalformat
, texFormat
,
5329 samples
, fixedsamplelocations
);
5331 if (width
> 0 && height
> 0 && depth
> 0) {
5332 if (!ctx
->Driver
.AllocTextureStorage(ctx
, texObj
, 1,
5333 width
, height
, depth
)) {
5334 /* tidy up the texture image state. strictly speaking,
5335 * we're allowed to just leave this in whatever state we
5336 * like, but being tidy is good.
5338 _mesa_init_teximage_fields(ctx
, texImage
,
5339 0, 0, 0, 0, GL_NONE
, MESA_FORMAT_NONE
);
5343 texObj
->Immutable
|= immutable
;
5346 _mesa_set_texture_view_state(ctx
, texObj
, target
, 1);
5349 _mesa_update_fbo_texture(ctx
, texObj
, 0, 0);
5355 _mesa_TexImage2DMultisample(GLenum target
, GLsizei samples
,
5356 GLenum internalformat
, GLsizei width
,
5357 GLsizei height
, GLboolean fixedsamplelocations
)
5359 struct gl_texture_object
*texObj
;
5360 GET_CURRENT_CONTEXT(ctx
);
5362 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5366 texture_image_multisample(ctx
, 2, texObj
, target
, samples
,
5367 internalformat
, width
, height
, 1,
5368 fixedsamplelocations
, GL_FALSE
,
5369 "glTexImage2DMultisample");
5374 _mesa_TexImage3DMultisample(GLenum target
, GLsizei samples
,
5375 GLenum internalformat
, GLsizei width
,
5376 GLsizei height
, GLsizei depth
,
5377 GLboolean fixedsamplelocations
)
5379 struct gl_texture_object
*texObj
;
5380 GET_CURRENT_CONTEXT(ctx
);
5382 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5386 texture_image_multisample(ctx
, 3, texObj
, target
, samples
,
5387 internalformat
, width
, height
, depth
,
5388 fixedsamplelocations
, GL_FALSE
,
5389 "glTexImage3DMultisample");
5393 valid_texstorage_ms_parameters(GLsizei width
, GLsizei height
, GLsizei depth
,
5394 GLsizei samples
, unsigned dims
)
5396 GET_CURRENT_CONTEXT(ctx
);
5398 if (!_mesa_valid_tex_storage_dim(width
, height
, depth
)) {
5399 _mesa_error(ctx
, GL_INVALID_VALUE
,
5400 "glTexStorage%uDMultisample(width=%d,height=%d,depth=%d)",
5401 dims
, width
, height
, depth
);
5408 _mesa_TexStorage2DMultisample(GLenum target
, GLsizei samples
,
5409 GLenum internalformat
, GLsizei width
,
5410 GLsizei height
, GLboolean fixedsamplelocations
)
5412 struct gl_texture_object
*texObj
;
5413 GET_CURRENT_CONTEXT(ctx
);
5415 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5419 if (!valid_texstorage_ms_parameters(width
, height
, 1, samples
, 2))
5422 texture_image_multisample(ctx
, 2, texObj
, target
, samples
,
5423 internalformat
, width
, height
, 1,
5424 fixedsamplelocations
, GL_TRUE
,
5425 "glTexStorage2DMultisample");
5429 _mesa_TexStorage3DMultisample(GLenum target
, GLsizei samples
,
5430 GLenum internalformat
, GLsizei width
,
5431 GLsizei height
, GLsizei depth
,
5432 GLboolean fixedsamplelocations
)
5434 struct gl_texture_object
*texObj
;
5435 GET_CURRENT_CONTEXT(ctx
);
5437 texObj
= _mesa_get_current_tex_object(ctx
, target
);
5441 if (!valid_texstorage_ms_parameters(width
, height
, depth
, samples
, 3))
5444 texture_image_multisample(ctx
, 3, texObj
, target
, samples
,
5445 internalformat
, width
, height
, depth
,
5446 fixedsamplelocations
, GL_TRUE
,
5447 "glTexStorage3DMultisample");
5451 _mesa_TextureStorage2DMultisample(GLuint texture
, GLsizei samples
,
5452 GLenum internalformat
, GLsizei width
,
5454 GLboolean fixedsamplelocations
)
5456 struct gl_texture_object
*texObj
;
5457 GET_CURRENT_CONTEXT(ctx
);
5459 texObj
= _mesa_lookup_texture_err(ctx
, texture
,
5460 "glTextureStorage2DMultisample");
5464 if (!valid_texstorage_ms_parameters(width
, height
, 1, samples
, 2))
5467 texture_image_multisample(ctx
, 2, texObj
, texObj
->Target
, samples
,
5468 internalformat
, width
, height
, 1,
5469 fixedsamplelocations
, GL_TRUE
,
5470 "glTextureStorage2DMultisample");
5474 _mesa_TextureStorage3DMultisample(GLuint texture
, GLsizei samples
,
5475 GLenum internalformat
, GLsizei width
,
5476 GLsizei height
, GLsizei depth
,
5477 GLboolean fixedsamplelocations
)
5479 struct gl_texture_object
*texObj
;
5480 GET_CURRENT_CONTEXT(ctx
);
5482 /* Get the texture object by Name. */
5483 texObj
= _mesa_lookup_texture_err(ctx
, texture
,
5484 "glTextureStorage3DMultisample");
5488 if (!valid_texstorage_ms_parameters(width
, height
, depth
, samples
, 3))
5491 texture_image_multisample(ctx
, 3, texObj
, texObj
->Target
, samples
,
5492 internalformat
, width
, height
, depth
,
5493 fixedsamplelocations
, GL_TRUE
,
5494 "glTextureStorage3DMultisample");