3 * Texture object management.
7 * Mesa 3-D graphics library
10 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
12 * Permission is hereby granted, free of charge, to any person obtaining a
13 * copy of this software and associated documentation files (the "Software"),
14 * to deal in the Software without restriction, including without limitation
15 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
16 * and/or sell copies of the Software, and to permit persons to whom the
17 * Software is furnished to do so, subject to the following conditions:
19 * The above copyright notice and this permission notice shall be included
20 * in all copies or substantial portions of the Software.
22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
23 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
25 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
26 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
27 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 #include "bufferobj.h"
44 #include "program/prog_instruction.h"
48 /**********************************************************************/
49 /** \name Internal functions */
54 * Return the gl_texture_object for a given ID.
56 struct gl_texture_object
*
57 _mesa_lookup_texture(struct gl_context
*ctx
, GLuint id
)
59 return (struct gl_texture_object
*)
60 _mesa_HashLookup(ctx
->Shared
->TexObjects
, id
);
66 * Allocate and initialize a new texture object. But don't put it into the
67 * texture object hash table.
69 * Called via ctx->Driver.NewTextureObject, unless overridden by a device
72 * \param shared the shared GL state structure to contain the texture object
73 * \param name integer name for the texture object
74 * \param target either GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D,
75 * GL_TEXTURE_CUBE_MAP_ARB or GL_TEXTURE_RECTANGLE_NV. zero is ok for the sake
78 * \return pointer to new texture object.
80 struct gl_texture_object
*
81 _mesa_new_texture_object( struct gl_context
*ctx
, GLuint name
, GLenum target
)
83 struct gl_texture_object
*obj
;
85 obj
= MALLOC_STRUCT(gl_texture_object
);
86 _mesa_initialize_texture_object(obj
, name
, target
);
92 * Initialize a new texture object to default values.
93 * \param obj the texture object
94 * \param name the texture name
95 * \param target the texture target
98 _mesa_initialize_texture_object( struct gl_texture_object
*obj
,
99 GLuint name
, GLenum target
)
101 ASSERT(target
== 0 ||
102 target
== GL_TEXTURE_1D
||
103 target
== GL_TEXTURE_2D
||
104 target
== GL_TEXTURE_3D
||
105 target
== GL_TEXTURE_CUBE_MAP_ARB
||
106 target
== GL_TEXTURE_RECTANGLE_NV
||
107 target
== GL_TEXTURE_1D_ARRAY_EXT
||
108 target
== GL_TEXTURE_2D_ARRAY_EXT
||
109 target
== GL_TEXTURE_EXTERNAL_OES
||
110 target
== GL_TEXTURE_CUBE_MAP_ARRAY
||
111 target
== GL_TEXTURE_BUFFER
||
112 target
== GL_TEXTURE_2D_MULTISAMPLE
||
113 target
== GL_TEXTURE_2D_MULTISAMPLE_ARRAY
);
115 memset(obj
, 0, sizeof(*obj
));
116 /* init the non-zero fields */
117 _glthread_INIT_MUTEX(obj
->Mutex
);
120 obj
->Target
= target
;
121 obj
->Priority
= 1.0F
;
123 obj
->MaxLevel
= 1000;
125 /* must be one; no support for (YUV) planes in separate buffers */
126 obj
->RequiredTextureImageUnits
= 1;
129 if (target
== GL_TEXTURE_RECTANGLE_NV
||
130 target
== GL_TEXTURE_EXTERNAL_OES
) {
131 obj
->Sampler
.WrapS
= GL_CLAMP_TO_EDGE
;
132 obj
->Sampler
.WrapT
= GL_CLAMP_TO_EDGE
;
133 obj
->Sampler
.WrapR
= GL_CLAMP_TO_EDGE
;
134 obj
->Sampler
.MinFilter
= GL_LINEAR
;
137 obj
->Sampler
.WrapS
= GL_REPEAT
;
138 obj
->Sampler
.WrapT
= GL_REPEAT
;
139 obj
->Sampler
.WrapR
= GL_REPEAT
;
140 obj
->Sampler
.MinFilter
= GL_NEAREST_MIPMAP_LINEAR
;
142 obj
->Sampler
.MagFilter
= GL_LINEAR
;
143 obj
->Sampler
.MinLod
= -1000.0;
144 obj
->Sampler
.MaxLod
= 1000.0;
145 obj
->Sampler
.LodBias
= 0.0;
146 obj
->Sampler
.MaxAnisotropy
= 1.0;
147 obj
->Sampler
.CompareMode
= GL_NONE
; /* ARB_shadow */
148 obj
->Sampler
.CompareFunc
= GL_LEQUAL
; /* ARB_shadow */
149 obj
->DepthMode
= GL_LUMINANCE
;
150 obj
->Sampler
.CubeMapSeamless
= GL_FALSE
;
151 obj
->Swizzle
[0] = GL_RED
;
152 obj
->Swizzle
[1] = GL_GREEN
;
153 obj
->Swizzle
[2] = GL_BLUE
;
154 obj
->Swizzle
[3] = GL_ALPHA
;
155 obj
->_Swizzle
= SWIZZLE_NOOP
;
156 obj
->Sampler
.sRGBDecode
= GL_DECODE_EXT
;
157 obj
->BufferObjectFormat
= GL_LUMINANCE8
;
158 obj
->_BufferObjectFormat
= MESA_FORMAT_L8
;
163 * Some texture initialization can't be finished until we know which
164 * target it's getting bound to (GL_TEXTURE_1D/2D/etc).
167 finish_texture_init(struct gl_context
*ctx
, GLenum target
,
168 struct gl_texture_object
*obj
)
170 GLenum filter
= GL_LINEAR
;
171 assert(obj
->Target
== 0);
174 case GL_TEXTURE_2D_MULTISAMPLE
:
175 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
179 case GL_TEXTURE_RECTANGLE_NV
:
180 case GL_TEXTURE_EXTERNAL_OES
:
181 /* have to init wrap and filter state here - kind of klunky */
182 obj
->Sampler
.WrapS
= GL_CLAMP_TO_EDGE
;
183 obj
->Sampler
.WrapT
= GL_CLAMP_TO_EDGE
;
184 obj
->Sampler
.WrapR
= GL_CLAMP_TO_EDGE
;
185 obj
->Sampler
.MinFilter
= filter
;
186 obj
->Sampler
.MagFilter
= filter
;
187 if (ctx
->Driver
.TexParameter
) {
188 static const GLfloat fparam_wrap
[1] = {(GLfloat
) GL_CLAMP_TO_EDGE
};
189 const GLfloat fparam_filter
[1] = {(GLfloat
) filter
};
190 ctx
->Driver
.TexParameter(ctx
, target
, obj
, GL_TEXTURE_WRAP_S
, fparam_wrap
);
191 ctx
->Driver
.TexParameter(ctx
, target
, obj
, GL_TEXTURE_WRAP_T
, fparam_wrap
);
192 ctx
->Driver
.TexParameter(ctx
, target
, obj
, GL_TEXTURE_WRAP_R
, fparam_wrap
);
193 ctx
->Driver
.TexParameter(ctx
, target
, obj
,
194 GL_TEXTURE_MIN_FILTER
, fparam_filter
);
195 ctx
->Driver
.TexParameter(ctx
, target
, obj
,
196 GL_TEXTURE_MAG_FILTER
, fparam_filter
);
201 /* nothing needs done */
208 * Deallocate a texture object struct. It should have already been
209 * removed from the texture object pool.
210 * Called via ctx->Driver.DeleteTexture() if not overriden by a driver.
212 * \param shared the shared GL state to which the object belongs.
213 * \param texObj the texture object to delete.
216 _mesa_delete_texture_object(struct gl_context
*ctx
,
217 struct gl_texture_object
*texObj
)
221 /* Set Target to an invalid value. With some assertions elsewhere
222 * we can try to detect possible use of deleted textures.
224 texObj
->Target
= 0x99;
226 /* free the texture images */
227 for (face
= 0; face
< 6; face
++) {
228 for (i
= 0; i
< MAX_TEXTURE_LEVELS
; i
++) {
229 if (texObj
->Image
[face
][i
]) {
230 ctx
->Driver
.DeleteTextureImage(ctx
, texObj
->Image
[face
][i
]);
235 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, NULL
);
237 /* destroy the mutex -- it may have allocated memory (eg on bsd) */
238 _glthread_DESTROY_MUTEX(texObj
->Mutex
);
240 /* free this object */
247 * Copy texture object state from one texture object to another.
248 * Use for glPush/PopAttrib.
250 * \param dest destination texture object.
251 * \param src source texture object.
254 _mesa_copy_texture_object( struct gl_texture_object
*dest
,
255 const struct gl_texture_object
*src
)
257 dest
->Target
= src
->Target
;
258 dest
->Name
= src
->Name
;
259 dest
->Priority
= src
->Priority
;
260 dest
->Sampler
.BorderColor
.f
[0] = src
->Sampler
.BorderColor
.f
[0];
261 dest
->Sampler
.BorderColor
.f
[1] = src
->Sampler
.BorderColor
.f
[1];
262 dest
->Sampler
.BorderColor
.f
[2] = src
->Sampler
.BorderColor
.f
[2];
263 dest
->Sampler
.BorderColor
.f
[3] = src
->Sampler
.BorderColor
.f
[3];
264 dest
->Sampler
.WrapS
= src
->Sampler
.WrapS
;
265 dest
->Sampler
.WrapT
= src
->Sampler
.WrapT
;
266 dest
->Sampler
.WrapR
= src
->Sampler
.WrapR
;
267 dest
->Sampler
.MinFilter
= src
->Sampler
.MinFilter
;
268 dest
->Sampler
.MagFilter
= src
->Sampler
.MagFilter
;
269 dest
->Sampler
.MinLod
= src
->Sampler
.MinLod
;
270 dest
->Sampler
.MaxLod
= src
->Sampler
.MaxLod
;
271 dest
->Sampler
.LodBias
= src
->Sampler
.LodBias
;
272 dest
->BaseLevel
= src
->BaseLevel
;
273 dest
->MaxLevel
= src
->MaxLevel
;
274 dest
->Sampler
.MaxAnisotropy
= src
->Sampler
.MaxAnisotropy
;
275 dest
->Sampler
.CompareMode
= src
->Sampler
.CompareMode
;
276 dest
->Sampler
.CompareFunc
= src
->Sampler
.CompareFunc
;
277 dest
->Sampler
.CubeMapSeamless
= src
->Sampler
.CubeMapSeamless
;
278 dest
->DepthMode
= src
->DepthMode
;
279 dest
->Sampler
.sRGBDecode
= src
->Sampler
.sRGBDecode
;
280 dest
->_MaxLevel
= src
->_MaxLevel
;
281 dest
->_MaxLambda
= src
->_MaxLambda
;
282 dest
->GenerateMipmap
= src
->GenerateMipmap
;
283 dest
->_BaseComplete
= src
->_BaseComplete
;
284 dest
->_MipmapComplete
= src
->_MipmapComplete
;
285 COPY_4V(dest
->Swizzle
, src
->Swizzle
);
286 dest
->_Swizzle
= src
->_Swizzle
;
288 dest
->RequiredTextureImageUnits
= src
->RequiredTextureImageUnits
;
293 * Free all texture images of the given texture object.
295 * \param ctx GL context.
296 * \param t texture object.
298 * \sa _mesa_clear_texture_image().
301 _mesa_clear_texture_object(struct gl_context
*ctx
,
302 struct gl_texture_object
*texObj
)
306 if (texObj
->Target
== 0)
309 for (i
= 0; i
< MAX_FACES
; i
++) {
310 for (j
= 0; j
< MAX_TEXTURE_LEVELS
; j
++) {
311 struct gl_texture_image
*texImage
= texObj
->Image
[i
][j
];
313 _mesa_clear_texture_image(ctx
, texImage
);
320 * Check if the given texture object is valid by examining its Target field.
321 * For debugging only.
324 valid_texture_object(const struct gl_texture_object
*tex
)
326 switch (tex
->Target
) {
331 case GL_TEXTURE_CUBE_MAP_ARB
:
332 case GL_TEXTURE_RECTANGLE_NV
:
333 case GL_TEXTURE_1D_ARRAY_EXT
:
334 case GL_TEXTURE_2D_ARRAY_EXT
:
335 case GL_TEXTURE_BUFFER
:
336 case GL_TEXTURE_EXTERNAL_OES
:
337 case GL_TEXTURE_CUBE_MAP_ARRAY
:
338 case GL_TEXTURE_2D_MULTISAMPLE
:
339 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
342 _mesa_problem(NULL
, "invalid reference to a deleted texture object");
345 _mesa_problem(NULL
, "invalid texture object Target 0x%x, Id = %u",
346 tex
->Target
, tex
->Name
);
353 * Reference (or unreference) a texture object.
354 * If '*ptr', decrement *ptr's refcount (and delete if it becomes zero).
355 * If 'tex' is non-null, increment its refcount.
356 * This is normally only called from the _mesa_reference_texobj() macro
357 * when there's a real pointer change.
360 _mesa_reference_texobj_(struct gl_texture_object
**ptr
,
361 struct gl_texture_object
*tex
)
366 /* Unreference the old texture */
367 GLboolean deleteFlag
= GL_FALSE
;
368 struct gl_texture_object
*oldTex
= *ptr
;
370 ASSERT(valid_texture_object(oldTex
));
371 (void) valid_texture_object
; /* silence warning in release builds */
373 _glthread_LOCK_MUTEX(oldTex
->Mutex
);
374 ASSERT(oldTex
->RefCount
> 0);
377 deleteFlag
= (oldTex
->RefCount
== 0);
378 _glthread_UNLOCK_MUTEX(oldTex
->Mutex
);
381 GET_CURRENT_CONTEXT(ctx
);
383 ctx
->Driver
.DeleteTexture(ctx
, oldTex
);
385 _mesa_problem(NULL
, "Unable to delete texture, no context");
393 /* reference new texture */
394 ASSERT(valid_texture_object(tex
));
395 _glthread_LOCK_MUTEX(tex
->Mutex
);
396 if (tex
->RefCount
== 0) {
397 /* this texture's being deleted (look just above) */
398 /* Not sure this can every really happen. Warn if it does. */
399 _mesa_problem(NULL
, "referencing deleted texture object");
406 _glthread_UNLOCK_MUTEX(tex
->Mutex
);
411 enum base_mipmap
{ BASE
, MIPMAP
};
415 * Mark a texture object as incomplete. There are actually three kinds of
417 * 1. "base incomplete": the base level of the texture is invalid so no
418 * texturing is possible.
419 * 2. "mipmap incomplete": a non-base level of the texture is invalid so
420 * mipmap filtering isn't possible, but non-mipmap filtering is.
421 * 3. "texture incompleteness": some combination of texture state and
422 * sampler state renders the texture incomplete.
424 * \param t texture object
425 * \param bm either BASE or MIPMAP to indicate what's incomplete
426 * \param fmt... string describing why it's incomplete (for debugging).
429 incomplete(struct gl_texture_object
*t
, enum base_mipmap bm
,
430 const char *fmt
, ...)
432 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_TEXTURE
) {
437 vsnprintf(s
, sizeof(s
), fmt
, args
);
440 _mesa_debug(NULL
, "Texture Obj %d incomplete because: %s\n", t
->Name
, s
);
444 t
->_BaseComplete
= GL_FALSE
;
445 t
->_MipmapComplete
= GL_FALSE
;
450 * Examine a texture object to determine if it is complete.
452 * The gl_texture_object::Complete flag will be set to GL_TRUE or GL_FALSE
455 * \param ctx GL context.
456 * \param t texture object.
458 * According to the texture target, verifies that each of the mipmaps is
459 * present and has the expected size.
462 _mesa_test_texobj_completeness( const struct gl_context
*ctx
,
463 struct gl_texture_object
*t
)
465 const GLint baseLevel
= t
->BaseLevel
;
466 const struct gl_texture_image
*baseImage
;
469 /* We'll set these to FALSE if tests fail below */
470 t
->_BaseComplete
= GL_TRUE
;
471 t
->_MipmapComplete
= GL_TRUE
;
473 if (t
->Target
== GL_TEXTURE_BUFFER
) {
474 /* Buffer textures are always considered complete. The obvious case where
475 * they would be incomplete (no BO attached) is actually specced to be
476 * undefined rendering results.
481 /* Detect cases where the application set the base level to an invalid
484 if ((baseLevel
< 0) || (baseLevel
>= MAX_TEXTURE_LEVELS
)) {
485 incomplete(t
, BASE
, "base level = %d is invalid", baseLevel
);
489 if (t
->MaxLevel
< baseLevel
) {
490 incomplete(t
, MIPMAP
, "MAX_LEVEL (%d) < BASE_LEVEL (%d)",
491 t
->MaxLevel
, baseLevel
);
495 baseImage
= t
->Image
[0][baseLevel
];
497 /* Always need the base level image */
499 incomplete(t
, BASE
, "Image[baseLevel=%d] == NULL", baseLevel
);
503 /* Check width/height/depth for zero */
504 if (baseImage
->Width
== 0 ||
505 baseImage
->Height
== 0 ||
506 baseImage
->Depth
== 0) {
507 incomplete(t
, BASE
, "texture width or height or depth = 0");
511 /* Check if the texture values are integer */
513 GLenum datatype
= _mesa_get_format_datatype(baseImage
->TexFormat
);
514 t
->_IsIntegerFormat
= datatype
== GL_INT
|| datatype
== GL_UNSIGNED_INT
;
517 /* Compute _MaxLevel (the maximum mipmap level we'll sample from given the
518 * mipmap image sizes and GL_TEXTURE_MAX_LEVEL state).
522 case GL_TEXTURE_1D_ARRAY_EXT
:
523 maxLevels
= ctx
->Const
.MaxTextureLevels
;
526 case GL_TEXTURE_2D_ARRAY_EXT
:
527 maxLevels
= ctx
->Const
.MaxTextureLevels
;
530 maxLevels
= ctx
->Const
.Max3DTextureLevels
;
532 case GL_TEXTURE_CUBE_MAP_ARB
:
533 case GL_TEXTURE_CUBE_MAP_ARRAY
:
534 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
536 case GL_TEXTURE_RECTANGLE_NV
:
537 case GL_TEXTURE_BUFFER
:
538 case GL_TEXTURE_EXTERNAL_OES
:
539 case GL_TEXTURE_2D_MULTISAMPLE
:
540 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
541 maxLevels
= 1; /* no mipmapping */
544 _mesa_problem(ctx
, "Bad t->Target in _mesa_test_texobj_completeness");
548 ASSERT(maxLevels
> 0);
551 baseLevel
+ baseImage
->MaxNumLevels
- 1; /* 'p' in the GL spec */
552 t
->_MaxLevel
= MIN2(t
->_MaxLevel
, t
->MaxLevel
);
553 t
->_MaxLevel
= MIN2(t
->_MaxLevel
, maxLevels
- 1); /* 'q' in the GL spec */
555 /* Compute _MaxLambda = q - b (see the 1.2 spec) used during mipmapping */
556 t
->_MaxLambda
= (GLfloat
) (t
->_MaxLevel
- baseLevel
);
559 /* This texture object was created with glTexStorage1/2/3D() so we
560 * know that all the mipmap levels are the right size and all cube
561 * map faces are the same size.
562 * We don't need to do any of the additional checks below.
567 if (t
->Target
== GL_TEXTURE_CUBE_MAP_ARB
) {
568 /* Make sure that all six cube map level 0 images are the same size.
569 * Note: we know that the image's width==height (we enforce that
570 * at glTexImage time) so we only need to test the width here.
573 assert(baseImage
->Width2
== baseImage
->Height
);
574 for (face
= 1; face
< 6; face
++) {
575 assert(t
->Image
[face
][baseLevel
] == NULL
||
576 t
->Image
[face
][baseLevel
]->Width2
==
577 t
->Image
[face
][baseLevel
]->Height2
);
578 if (t
->Image
[face
][baseLevel
] == NULL
||
579 t
->Image
[face
][baseLevel
]->Width2
!= baseImage
->Width2
) {
580 incomplete(t
, BASE
, "Cube face missing or mismatched size");
587 * Do mipmap consistency checking.
588 * Note: we don't care about the current texture sampler state here.
589 * To determine texture completeness we'll either look at _BaseComplete
590 * or _MipmapComplete depending on the current minification filter mode.
594 const GLint minLevel
= baseLevel
;
595 const GLint maxLevel
= t
->_MaxLevel
;
596 const GLuint numFaces
= _mesa_num_tex_faces(t
->Target
);
597 GLuint width
, height
, depth
, face
;
599 if (minLevel
> maxLevel
) {
600 incomplete(t
, MIPMAP
, "minLevel > maxLevel");
604 /* Get the base image's dimensions */
605 width
= baseImage
->Width2
;
606 height
= baseImage
->Height2
;
607 depth
= baseImage
->Depth2
;
609 /* Note: this loop will be a no-op for RECT, BUFFER, EXTERNAL,
610 * MULTISAMPLE and MULTISAMPLE_ARRAY textures
612 for (i
= baseLevel
+ 1; i
< maxLevels
; i
++) {
613 /* Compute the expected size of image at level[i] */
617 if (height
> 1 && t
->Target
!= GL_TEXTURE_1D_ARRAY
) {
620 if (depth
> 1 && t
->Target
!= GL_TEXTURE_2D_ARRAY
&& t
->Target
!= GL_TEXTURE_CUBE_MAP_ARRAY
) {
624 /* loop over cube faces (or single face otherwise) */
625 for (face
= 0; face
< numFaces
; face
++) {
626 if (i
>= minLevel
&& i
<= maxLevel
) {
627 const struct gl_texture_image
*img
= t
->Image
[face
][i
];
630 incomplete(t
, MIPMAP
, "TexImage[%d] is missing", i
);
633 if (img
->TexFormat
!= baseImage
->TexFormat
) {
634 incomplete(t
, MIPMAP
, "Format[i] != Format[baseLevel]");
637 if (img
->Border
!= baseImage
->Border
) {
638 incomplete(t
, MIPMAP
, "Border[i] != Border[baseLevel]");
641 if (img
->Width2
!= width
) {
642 incomplete(t
, MIPMAP
, "TexImage[%d] bad width %u", i
, img
->Width2
);
645 if (img
->Height2
!= height
) {
646 incomplete(t
, MIPMAP
, "TexImage[%d] bad height %u", i
, img
->Height2
);
649 if (img
->Depth2
!= depth
) {
650 incomplete(t
, MIPMAP
, "TexImage[%d] bad depth %u", i
, img
->Depth2
);
654 /* Extra checks for cube textures */
656 /* check that cube faces are the same size */
657 if (img
->Width2
!= t
->Image
[0][i
]->Width2
||
658 img
->Height2
!= t
->Image
[0][i
]->Height2
) {
659 incomplete(t
, MIPMAP
, "CubeMap Image[n][i] bad size");
666 if (width
== 1 && height
== 1 && depth
== 1) {
667 return; /* found smallest needed mipmap, all done! */
675 * Check if the given cube map texture is "cube complete" as defined in
676 * the OpenGL specification.
679 _mesa_cube_complete(const struct gl_texture_object
*texObj
)
681 const GLint baseLevel
= texObj
->BaseLevel
;
682 const struct gl_texture_image
*img0
, *img
;
685 if (texObj
->Target
!= GL_TEXTURE_CUBE_MAP
)
688 if ((baseLevel
< 0) || (baseLevel
>= MAX_TEXTURE_LEVELS
))
691 /* check first face */
692 img0
= texObj
->Image
[0][baseLevel
];
695 img0
->Width
!= img0
->Height
)
698 /* check remaining faces vs. first face */
699 for (face
= 1; face
< 6; face
++) {
700 img
= texObj
->Image
[face
][baseLevel
];
702 img
->Width
!= img0
->Width
||
703 img
->Height
!= img0
->Height
||
704 img
->TexFormat
!= img0
->TexFormat
)
713 * Mark a texture object dirty. It forces the object to be incomplete
714 * and optionally forces the context to re-validate its state.
716 * \param ctx GL context.
717 * \param texObj texture object.
718 * \param invalidate_state also invalidate context state.
721 _mesa_dirty_texobj(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
722 GLboolean invalidate_state
)
724 texObj
->_BaseComplete
= GL_FALSE
;
725 texObj
->_MipmapComplete
= GL_FALSE
;
726 if (invalidate_state
)
727 ctx
->NewState
|= _NEW_TEXTURE
;
732 * Return pointer to a default/fallback texture of the given type/target.
733 * The texture is an RGBA texture with all texels = (0,0,0,1).
734 * That's the value a GLSL sampler should get when sampling from an
735 * incomplete texture.
737 struct gl_texture_object
*
738 _mesa_get_fallback_texture(struct gl_context
*ctx
, gl_texture_index tex
)
740 if (!ctx
->Shared
->FallbackTex
[tex
]) {
741 /* create fallback texture now */
742 const GLsizei width
= 1, height
= 1, depth
= 1;
744 struct gl_texture_object
*texObj
;
745 struct gl_texture_image
*texImage
;
747 GLuint dims
, face
, numFaces
= 1;
756 case TEXTURE_2D_ARRAY_INDEX
:
758 target
= GL_TEXTURE_2D_ARRAY
;
760 case TEXTURE_1D_ARRAY_INDEX
:
762 target
= GL_TEXTURE_1D_ARRAY
;
764 case TEXTURE_CUBE_INDEX
:
766 target
= GL_TEXTURE_CUBE_MAP
;
769 case TEXTURE_3D_INDEX
:
771 target
= GL_TEXTURE_3D
;
773 case TEXTURE_RECT_INDEX
:
775 target
= GL_TEXTURE_RECTANGLE
;
777 case TEXTURE_2D_INDEX
:
779 target
= GL_TEXTURE_2D
;
781 case TEXTURE_1D_INDEX
:
783 target
= GL_TEXTURE_1D
;
785 case TEXTURE_BUFFER_INDEX
:
787 target
= GL_TEXTURE_BUFFER
;
789 case TEXTURE_CUBE_ARRAY_INDEX
:
791 target
= GL_TEXTURE_CUBE_MAP_ARRAY
;
793 case TEXTURE_EXTERNAL_INDEX
:
795 target
= GL_TEXTURE_EXTERNAL_OES
;
797 case TEXTURE_2D_MULTISAMPLE_INDEX
:
799 target
= GL_TEXTURE_2D_MULTISAMPLE
;
801 case TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
:
803 target
= GL_TEXTURE_2D_MULTISAMPLE_ARRAY
;
810 /* create texture object */
811 texObj
= ctx
->Driver
.NewTextureObject(ctx
, 0, target
);
815 assert(texObj
->RefCount
== 1);
816 texObj
->Sampler
.MinFilter
= GL_NEAREST
;
817 texObj
->Sampler
.MagFilter
= GL_NEAREST
;
819 texFormat
= ctx
->Driver
.ChooseTextureFormat(ctx
, target
,
823 /* need a loop here just for cube maps */
824 for (face
= 0; face
< numFaces
; face
++) {
827 if (target
== GL_TEXTURE_CUBE_MAP
)
828 faceTarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ face
;
832 /* initialize level[0] texture image */
833 texImage
= _mesa_get_tex_image(ctx
, texObj
, faceTarget
, 0);
835 _mesa_init_teximage_fields(ctx
, texImage
,
837 (dims
> 1) ? height
: 1,
838 (dims
> 2) ? depth
: 1,
842 ctx
->Driver
.TexImage(ctx
, dims
, texImage
,
843 GL_RGBA
, GL_UNSIGNED_BYTE
, texel
,
844 &ctx
->DefaultPacking
);
847 _mesa_test_texobj_completeness(ctx
, texObj
);
848 assert(texObj
->_BaseComplete
);
849 assert(texObj
->_MipmapComplete
);
851 ctx
->Shared
->FallbackTex
[tex
] = texObj
;
853 return ctx
->Shared
->FallbackTex
[tex
];
858 * Compute the size of the given texture object, in bytes.
861 texture_size(const struct gl_texture_object
*texObj
)
863 const GLuint numFaces
= _mesa_num_tex_faces(texObj
->Target
);
864 GLuint face
, level
, size
= 0;
866 for (face
= 0; face
< numFaces
; face
++) {
867 for (level
= 0; level
< MAX_TEXTURE_LEVELS
; level
++) {
868 const struct gl_texture_image
*img
= texObj
->Image
[face
][level
];
870 GLuint sz
= _mesa_format_image_size(img
->TexFormat
, img
->Width
,
871 img
->Height
, img
->Depth
);
882 * Callback called from _mesa_HashWalk()
885 count_tex_size(GLuint key
, void *data
, void *userData
)
887 const struct gl_texture_object
*texObj
=
888 (const struct gl_texture_object
*) data
;
889 GLuint
*total
= (GLuint
*) userData
;
891 *total
= *total
+ texture_size(texObj
);
896 * Compute total size (in bytes) of all textures for the given context.
897 * For debugging purposes.
900 _mesa_total_texture_memory(struct gl_context
*ctx
)
902 GLuint tgt
, total
= 0;
904 _mesa_HashWalk(ctx
->Shared
->TexObjects
, count_tex_size
, &total
);
906 /* plus, the default texture objects */
907 for (tgt
= 0; tgt
< NUM_TEXTURE_TARGETS
; tgt
++) {
908 total
+= texture_size(ctx
->Shared
->DefaultTex
[tgt
]);
914 static struct gl_texture_object
*
915 invalidate_tex_image_error_check(struct gl_context
*ctx
, GLuint texture
,
916 GLint level
, const char *name
)
918 /* The GL_ARB_invalidate_subdata spec says:
920 * "If <texture> is zero or is not the name of a texture, the error
921 * INVALID_VALUE is generated."
923 * This performs the error check in a different order than listed in the
924 * spec. We have to get the texture object before we can validate the
925 * other parameters against values in the texture object.
927 struct gl_texture_object
*const t
= _mesa_lookup_texture(ctx
, texture
);
928 if (texture
== 0 || t
== NULL
) {
929 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(texture)", name
);
933 /* The GL_ARB_invalidate_subdata spec says:
935 * "If <level> is less than zero or greater than the base 2 logarithm
936 * of the maximum texture width, height, or depth, the error
937 * INVALID_VALUE is generated."
939 if (level
< 0 || level
> t
->MaxLevel
) {
940 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level)", name
);
944 /* The GL_ARB_invalidate_subdata spec says:
946 * "If the target of <texture> is TEXTURE_RECTANGLE, TEXTURE_BUFFER,
947 * TEXTURE_2D_MULTISAMPLE, or TEXTURE_2D_MULTISAMPLE_ARRAY, and <level>
948 * is not zero, the error INVALID_VALUE is generated."
952 case GL_TEXTURE_RECTANGLE
:
953 case GL_TEXTURE_BUFFER
:
954 case GL_TEXTURE_2D_MULTISAMPLE
:
955 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
956 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level)", name
);
970 /***********************************************************************/
971 /** \name API functions */
976 * Generate texture names.
978 * \param n number of texture names to be generated.
979 * \param textures an array in which will hold the generated texture names.
981 * \sa glGenTextures().
983 * Calls _mesa_HashFindFreeKeyBlock() to find a block of free texture
984 * IDs which are stored in \p textures. Corresponding empty texture
985 * objects are also generated.
988 _mesa_GenTextures( GLsizei n
, GLuint
*textures
)
990 GET_CURRENT_CONTEXT(ctx
);
994 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
995 _mesa_debug(ctx
, "glGenTextures %d\n", n
);
998 _mesa_error( ctx
, GL_INVALID_VALUE
, "glGenTextures" );
1006 * This must be atomic (generation and allocation of texture IDs)
1008 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1010 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->TexObjects
, n
);
1012 /* Allocate new, empty texture objects */
1013 for (i
= 0; i
< n
; i
++) {
1014 struct gl_texture_object
*texObj
;
1015 GLuint name
= first
+ i
;
1017 texObj
= ctx
->Driver
.NewTextureObject(ctx
, name
, target
);
1019 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1020 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glGenTextures");
1024 /* insert into hash table */
1025 _mesa_HashInsert(ctx
->Shared
->TexObjects
, texObj
->Name
, texObj
);
1030 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1035 * Check if the given texture object is bound to the current draw or
1036 * read framebuffer. If so, Unbind it.
1039 unbind_texobj_from_fbo(struct gl_context
*ctx
,
1040 struct gl_texture_object
*texObj
)
1042 const GLuint n
= (ctx
->DrawBuffer
== ctx
->ReadBuffer
) ? 1 : 2;
1045 for (i
= 0; i
< n
; i
++) {
1046 struct gl_framebuffer
*fb
= (i
== 0) ? ctx
->DrawBuffer
: ctx
->ReadBuffer
;
1047 if (_mesa_is_user_fbo(fb
)) {
1049 for (j
= 0; j
< BUFFER_COUNT
; j
++) {
1050 if (fb
->Attachment
[j
].Type
== GL_TEXTURE
&&
1051 fb
->Attachment
[j
].Texture
== texObj
) {
1052 /* Vertices are already flushed by _mesa_DeleteTextures */
1053 ctx
->NewState
|= _NEW_BUFFERS
;
1054 _mesa_remove_attachment(ctx
, fb
->Attachment
+ j
);
1063 * Check if the given texture object is bound to any texture image units and
1064 * unbind it if so (revert to default textures).
1067 unbind_texobj_from_texunits(struct gl_context
*ctx
,
1068 struct gl_texture_object
*texObj
)
1072 for (u
= 0; u
< Elements(ctx
->Texture
.Unit
); u
++) {
1073 struct gl_texture_unit
*unit
= &ctx
->Texture
.Unit
[u
];
1074 for (tex
= 0; tex
< NUM_TEXTURE_TARGETS
; tex
++) {
1075 if (texObj
== unit
->CurrentTex
[tex
]) {
1076 _mesa_reference_texobj(&unit
->CurrentTex
[tex
],
1077 ctx
->Shared
->DefaultTex
[tex
]);
1078 ASSERT(unit
->CurrentTex
[tex
]);
1087 * Delete named textures.
1089 * \param n number of textures to be deleted.
1090 * \param textures array of texture IDs to be deleted.
1092 * \sa glDeleteTextures().
1094 * If we're about to delete a texture that's currently bound to any
1095 * texture unit, unbind the texture first. Decrement the reference
1096 * count on the texture object and delete it if it's zero.
1097 * Recall that texture objects can be shared among several rendering
1101 _mesa_DeleteTextures( GLsizei n
, const GLuint
*textures
)
1103 GET_CURRENT_CONTEXT(ctx
);
1106 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1107 _mesa_debug(ctx
, "glDeleteTextures %d\n", n
);
1109 FLUSH_VERTICES(ctx
, 0); /* too complex */
1114 for (i
= 0; i
< n
; i
++) {
1115 if (textures
[i
] > 0) {
1116 struct gl_texture_object
*delObj
1117 = _mesa_lookup_texture(ctx
, textures
[i
]);
1120 _mesa_lock_texture(ctx
, delObj
);
1122 /* Check if texture is bound to any framebuffer objects.
1124 * See section 4.4.2.3 of GL_EXT_framebuffer_object.
1126 unbind_texobj_from_fbo(ctx
, delObj
);
1128 /* Check if this texture is currently bound to any texture units.
1131 unbind_texobj_from_texunits(ctx
, delObj
);
1133 _mesa_unlock_texture(ctx
, delObj
);
1135 ctx
->NewState
|= _NEW_TEXTURE
;
1137 /* The texture _name_ is now free for re-use.
1138 * Remove it from the hash table now.
1140 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1141 _mesa_HashRemove(ctx
->Shared
->TexObjects
, delObj
->Name
);
1142 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1144 /* Unreference the texobj. If refcount hits zero, the texture
1147 _mesa_reference_texobj(&delObj
, NULL
);
1155 * Convert a GL texture target enum such as GL_TEXTURE_2D or GL_TEXTURE_3D
1156 * into the corresponding Mesa texture target index.
1157 * Note that proxy targets are not valid here.
1158 * \return TEXTURE_x_INDEX or -1 if target is invalid
1161 target_enum_to_index(struct gl_context
*ctx
, GLenum target
)
1165 return _mesa_is_desktop_gl(ctx
) ? TEXTURE_1D_INDEX
: -1;
1167 return TEXTURE_2D_INDEX
;
1169 return TEXTURE_3D_INDEX
;
1170 case GL_TEXTURE_CUBE_MAP_ARB
:
1171 return ctx
->Extensions
.ARB_texture_cube_map
1172 ? TEXTURE_CUBE_INDEX
: -1;
1173 case GL_TEXTURE_RECTANGLE_NV
:
1174 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.NV_texture_rectangle
1175 ? TEXTURE_RECT_INDEX
: -1;
1176 case GL_TEXTURE_1D_ARRAY_EXT
:
1177 return _mesa_is_desktop_gl(ctx
)
1178 && (ctx
->Extensions
.EXT_texture_array
1179 || ctx
->Extensions
.MESA_texture_array
)
1180 ? TEXTURE_1D_ARRAY_INDEX
: -1;
1181 case GL_TEXTURE_2D_ARRAY_EXT
:
1182 return (_mesa_is_desktop_gl(ctx
)
1183 && (ctx
->Extensions
.EXT_texture_array
1184 || ctx
->Extensions
.MESA_texture_array
))
1185 || _mesa_is_gles3(ctx
)
1186 ? TEXTURE_2D_ARRAY_INDEX
: -1;
1187 case GL_TEXTURE_BUFFER_ARB
:
1188 return ctx
->API
== API_OPENGL_CORE
&&
1189 ctx
->Extensions
.ARB_texture_buffer_object
?
1190 TEXTURE_BUFFER_INDEX
: -1;
1191 case GL_TEXTURE_EXTERNAL_OES
:
1192 return _mesa_is_gles(ctx
) && ctx
->Extensions
.OES_EGL_image_external
1193 ? TEXTURE_EXTERNAL_INDEX
: -1;
1194 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1195 return TEXTURE_CUBE_ARRAY_INDEX
;
1196 case GL_TEXTURE_2D_MULTISAMPLE
:
1197 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1198 ? TEXTURE_2D_MULTISAMPLE_INDEX
: -1;
1199 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1200 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1201 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
: -1;
1209 * Bind a named texture to a texturing target.
1211 * \param target texture target.
1212 * \param texName texture name.
1214 * \sa glBindTexture().
1216 * Determines the old texture object bound and returns immediately if rebinding
1217 * the same texture. Get the current texture which is either a default texture
1218 * if name is null, a named texture from the hash, or a new texture if the
1219 * given texture name is new. Increments its reference count, binds it, and
1220 * calls dd_function_table::BindTexture. Decrements the old texture reference
1221 * count and deletes it if it reaches zero.
1224 _mesa_BindTexture( GLenum target
, GLuint texName
)
1226 GET_CURRENT_CONTEXT(ctx
);
1227 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
1228 struct gl_texture_object
*newTexObj
= NULL
;
1231 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1232 _mesa_debug(ctx
, "glBindTexture %s %d\n",
1233 _mesa_lookup_enum_by_nr(target
), (GLint
) texName
);
1235 targetIndex
= target_enum_to_index(ctx
, target
);
1236 if (targetIndex
< 0) {
1237 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindTexture(target)");
1240 assert(targetIndex
< NUM_TEXTURE_TARGETS
);
1243 * Get pointer to new texture object (newTexObj)
1246 /* Use a default texture object */
1247 newTexObj
= ctx
->Shared
->DefaultTex
[targetIndex
];
1250 /* non-default texture object */
1251 newTexObj
= _mesa_lookup_texture(ctx
, texName
);
1253 /* error checking */
1254 if (newTexObj
->Target
!= 0 && newTexObj
->Target
!= target
) {
1255 /* the named texture object's target doesn't match the given target */
1256 _mesa_error( ctx
, GL_INVALID_OPERATION
,
1257 "glBindTexture(target mismatch)" );
1260 if (newTexObj
->Target
== 0) {
1261 finish_texture_init(ctx
, target
, newTexObj
);
1265 if (ctx
->API
== API_OPENGL_CORE
) {
1266 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindTexture(non-gen name)");
1270 /* if this is a new texture id, allocate a texture object now */
1271 newTexObj
= ctx
->Driver
.NewTextureObject(ctx
, texName
, target
);
1273 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindTexture");
1277 /* and insert it into hash table */
1278 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1279 _mesa_HashInsert(ctx
->Shared
->TexObjects
, texName
, newTexObj
);
1280 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1282 newTexObj
->Target
= target
;
1285 assert(valid_texture_object(newTexObj
));
1287 /* Check if this texture is only used by this context and is already bound.
1288 * If so, just return.
1291 GLboolean early_out
;
1292 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1293 early_out
= ((ctx
->Shared
->RefCount
== 1)
1294 && (newTexObj
== texUnit
->CurrentTex
[targetIndex
]));
1295 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1301 /* flush before changing binding */
1302 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1304 /* Do the actual binding. The refcount on the previously bound
1305 * texture object will be decremented. It'll be deleted if the
1308 _mesa_reference_texobj(&texUnit
->CurrentTex
[targetIndex
], newTexObj
);
1309 ASSERT(texUnit
->CurrentTex
[targetIndex
]);
1311 /* Pass BindTexture call to device driver */
1312 if (ctx
->Driver
.BindTexture
)
1313 ctx
->Driver
.BindTexture(ctx
, target
, newTexObj
);
1318 * Set texture priorities.
1320 * \param n number of textures.
1321 * \param texName texture names.
1322 * \param priorities corresponding texture priorities.
1324 * \sa glPrioritizeTextures().
1326 * Looks up each texture in the hash, clamps the corresponding priority between
1327 * 0.0 and 1.0, and calls dd_function_table::PrioritizeTexture.
1330 _mesa_PrioritizeTextures( GLsizei n
, const GLuint
*texName
,
1331 const GLclampf
*priorities
)
1333 GET_CURRENT_CONTEXT(ctx
);
1336 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1337 _mesa_debug(ctx
, "glPrioritizeTextures %d\n", n
);
1339 FLUSH_VERTICES(ctx
, 0);
1342 _mesa_error( ctx
, GL_INVALID_VALUE
, "glPrioritizeTextures" );
1349 for (i
= 0; i
< n
; i
++) {
1350 if (texName
[i
] > 0) {
1351 struct gl_texture_object
*t
= _mesa_lookup_texture(ctx
, texName
[i
]);
1353 t
->Priority
= CLAMP( priorities
[i
], 0.0F
, 1.0F
);
1358 ctx
->NewState
|= _NEW_TEXTURE
;
1364 * See if textures are loaded in texture memory.
1366 * \param n number of textures to query.
1367 * \param texName array with the texture names.
1368 * \param residences array which will hold the residence status.
1370 * \return GL_TRUE if all textures are resident and \p residences is left unchanged,
1372 * Note: we assume all textures are always resident
1374 GLboolean GLAPIENTRY
1375 _mesa_AreTexturesResident(GLsizei n
, const GLuint
*texName
,
1376 GLboolean
*residences
)
1378 GET_CURRENT_CONTEXT(ctx
);
1379 GLboolean allResident
= GL_TRUE
;
1381 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1383 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1384 _mesa_debug(ctx
, "glAreTexturesResident %d\n", n
);
1387 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident(n)");
1391 if (!texName
|| !residences
)
1394 /* We only do error checking on the texture names */
1395 for (i
= 0; i
< n
; i
++) {
1396 struct gl_texture_object
*t
;
1397 if (texName
[i
] == 0) {
1398 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident");
1401 t
= _mesa_lookup_texture(ctx
, texName
[i
]);
1403 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident");
1413 * See if a name corresponds to a texture.
1415 * \param texture texture name.
1417 * \return GL_TRUE if texture name corresponds to a texture, or GL_FALSE
1420 * \sa glIsTexture().
1422 * Calls _mesa_HashLookup().
1424 GLboolean GLAPIENTRY
1425 _mesa_IsTexture( GLuint texture
)
1427 struct gl_texture_object
*t
;
1428 GET_CURRENT_CONTEXT(ctx
);
1429 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1431 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1432 _mesa_debug(ctx
, "glIsTexture %d\n", texture
);
1437 t
= _mesa_lookup_texture(ctx
, texture
);
1439 /* IsTexture is true only after object has been bound once. */
1440 return t
&& t
->Target
;
1445 * Simplest implementation of texture locking: grab the shared tex
1446 * mutex. Examine the shared context state timestamp and if there has
1447 * been a change, set the appropriate bits in ctx->NewState.
1449 * This is used to deal with synchronizing things when a texture object
1450 * is used/modified by different contexts (or threads) which are sharing
1453 * See also _mesa_lock/unlock_texture() in teximage.h
1456 _mesa_lock_context_textures( struct gl_context
*ctx
)
1458 _glthread_LOCK_MUTEX(ctx
->Shared
->TexMutex
);
1460 if (ctx
->Shared
->TextureStateStamp
!= ctx
->TextureStateTimestamp
) {
1461 ctx
->NewState
|= _NEW_TEXTURE
;
1462 ctx
->TextureStateTimestamp
= ctx
->Shared
->TextureStateStamp
;
1468 _mesa_unlock_context_textures( struct gl_context
*ctx
)
1470 assert(ctx
->Shared
->TextureStateStamp
== ctx
->TextureStateTimestamp
);
1471 _glthread_UNLOCK_MUTEX(ctx
->Shared
->TexMutex
);
1475 _mesa_InvalidateTexSubImage(GLuint texture
, GLint level
, GLint xoffset
,
1476 GLint yoffset
, GLint zoffset
, GLsizei width
,
1477 GLsizei height
, GLsizei depth
)
1479 struct gl_texture_object
*t
;
1480 struct gl_texture_image
*image
;
1481 GET_CURRENT_CONTEXT(ctx
);
1483 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1484 _mesa_debug(ctx
, "glInvalidateTexSubImage %d\n", texture
);
1486 t
= invalidate_tex_image_error_check(ctx
, texture
, level
,
1487 "glInvalidateTexSubImage");
1489 /* The GL_ARB_invalidate_subdata spec says:
1491 * "...the specified subregion must be between -<b> and <dim>+<b> where
1492 * <dim> is the size of the dimension of the texture image, and <b> is
1493 * the size of the border of that texture image, otherwise
1494 * INVALID_VALUE is generated (border is not applied to dimensions that
1495 * don't exist in a given texture target)."
1497 image
= t
->Image
[0][level
];
1506 /* The GL_ARB_invalidate_subdata spec says:
1508 * "For texture targets that don't have certain dimensions, this
1509 * command treats those dimensions as having a size of 1. For
1510 * example, to invalidate a portion of a two-dimensional texture,
1511 * the application would use <zoffset> equal to zero and <depth>
1514 switch (t
->Target
) {
1515 case GL_TEXTURE_BUFFER
:
1524 xBorder
= image
->Border
;
1527 imageWidth
= image
->Width
;
1531 case GL_TEXTURE_1D_ARRAY
:
1532 xBorder
= image
->Border
;
1535 imageWidth
= image
->Width
;
1536 imageHeight
= image
->Height
;
1540 case GL_TEXTURE_CUBE_MAP
:
1541 case GL_TEXTURE_RECTANGLE
:
1542 case GL_TEXTURE_2D_MULTISAMPLE
:
1543 xBorder
= image
->Border
;
1544 yBorder
= image
->Border
;
1546 imageWidth
= image
->Width
;
1547 imageHeight
= image
->Height
;
1550 case GL_TEXTURE_2D_ARRAY
:
1551 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1552 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1553 xBorder
= image
->Border
;
1554 yBorder
= image
->Border
;
1556 imageWidth
= image
->Width
;
1557 imageHeight
= image
->Height
;
1558 imageDepth
= image
->Depth
;
1561 xBorder
= image
->Border
;
1562 yBorder
= image
->Border
;
1563 zBorder
= image
->Border
;
1564 imageWidth
= image
->Width
;
1565 imageHeight
= image
->Height
;
1566 imageDepth
= image
->Depth
;
1569 assert(!"Should not get here.");
1579 if (xoffset
< -xBorder
) {
1580 _mesa_error(ctx
, GL_INVALID_VALUE
, "glInvalidateSubTexImage(xoffset)");
1584 if (xoffset
+ width
> imageWidth
+ xBorder
) {
1585 _mesa_error(ctx
, GL_INVALID_VALUE
,
1586 "glInvalidateSubTexImage(xoffset+width)");
1590 if (yoffset
< -yBorder
) {
1591 _mesa_error(ctx
, GL_INVALID_VALUE
, "glInvalidateSubTexImage(yoffset)");
1595 if (yoffset
+ height
> imageHeight
+ yBorder
) {
1596 _mesa_error(ctx
, GL_INVALID_VALUE
,
1597 "glInvalidateSubTexImage(yoffset+height)");
1601 if (zoffset
< -zBorder
) {
1602 _mesa_error(ctx
, GL_INVALID_VALUE
,
1603 "glInvalidateSubTexImage(zoffset)");
1607 if (zoffset
+ depth
> imageDepth
+ zBorder
) {
1608 _mesa_error(ctx
, GL_INVALID_VALUE
,
1609 "glInvalidateSubTexImage(zoffset+depth)");
1614 /* We don't actually do anything for this yet. Just return after
1615 * validating the parameters and generating the required errors.
1621 _mesa_InvalidateTexImage(GLuint texture
, GLint level
)
1623 GET_CURRENT_CONTEXT(ctx
);
1625 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1626 _mesa_debug(ctx
, "glInvalidateTexImage(%d, %d)\n", texture
, level
);
1628 invalidate_tex_image_error_check(ctx
, texture
, level
,
1629 "glInvalidateTexImage");
1631 /* We don't actually do anything for this yet. Just return after
1632 * validating the parameters and generating the required errors.