3 * Texture object management.
7 * Mesa 3-D graphics library
9 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
11 * Permission is hereby granted, free of charge, to any person obtaining a
12 * copy of this software and associated documentation files (the "Software"),
13 * to deal in the Software without restriction, including without limitation
14 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15 * and/or sell copies of the Software, and to permit persons to whom the
16 * Software is furnished to do so, subject to the following conditions:
18 * The above copyright notice and this permission notice shall be included
19 * in all copies or substantial portions of the Software.
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
24 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
25 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
26 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
27 * 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(ctx
, 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_context
*ctx
,
99 struct gl_texture_object
*obj
,
100 GLuint name
, GLenum target
)
102 ASSERT(target
== 0 ||
103 target
== GL_TEXTURE_1D
||
104 target
== GL_TEXTURE_2D
||
105 target
== GL_TEXTURE_3D
||
106 target
== GL_TEXTURE_CUBE_MAP_ARB
||
107 target
== GL_TEXTURE_RECTANGLE_NV
||
108 target
== GL_TEXTURE_1D_ARRAY_EXT
||
109 target
== GL_TEXTURE_2D_ARRAY_EXT
||
110 target
== GL_TEXTURE_EXTERNAL_OES
||
111 target
== GL_TEXTURE_CUBE_MAP_ARRAY
||
112 target
== GL_TEXTURE_BUFFER
||
113 target
== GL_TEXTURE_2D_MULTISAMPLE
||
114 target
== GL_TEXTURE_2D_MULTISAMPLE_ARRAY
);
116 memset(obj
, 0, sizeof(*obj
));
117 /* init the non-zero fields */
118 _glthread_INIT_MUTEX(obj
->Mutex
);
121 obj
->Target
= target
;
122 obj
->Priority
= 1.0F
;
124 obj
->MaxLevel
= 1000;
126 /* must be one; no support for (YUV) planes in separate buffers */
127 obj
->RequiredTextureImageUnits
= 1;
130 if (target
== GL_TEXTURE_RECTANGLE_NV
||
131 target
== GL_TEXTURE_EXTERNAL_OES
) {
132 obj
->Sampler
.WrapS
= GL_CLAMP_TO_EDGE
;
133 obj
->Sampler
.WrapT
= GL_CLAMP_TO_EDGE
;
134 obj
->Sampler
.WrapR
= GL_CLAMP_TO_EDGE
;
135 obj
->Sampler
.MinFilter
= GL_LINEAR
;
138 obj
->Sampler
.WrapS
= GL_REPEAT
;
139 obj
->Sampler
.WrapT
= GL_REPEAT
;
140 obj
->Sampler
.WrapR
= GL_REPEAT
;
141 obj
->Sampler
.MinFilter
= GL_NEAREST_MIPMAP_LINEAR
;
143 obj
->Sampler
.MagFilter
= GL_LINEAR
;
144 obj
->Sampler
.MinLod
= -1000.0;
145 obj
->Sampler
.MaxLod
= 1000.0;
146 obj
->Sampler
.LodBias
= 0.0;
147 obj
->Sampler
.MaxAnisotropy
= 1.0;
148 obj
->Sampler
.CompareMode
= GL_NONE
; /* ARB_shadow */
149 obj
->Sampler
.CompareFunc
= GL_LEQUAL
; /* ARB_shadow */
150 obj
->DepthMode
= ctx
->API
== API_OPENGL_CORE
? GL_RED
: GL_LUMINANCE
;
151 obj
->Sampler
.CubeMapSeamless
= GL_FALSE
;
152 obj
->Swizzle
[0] = GL_RED
;
153 obj
->Swizzle
[1] = GL_GREEN
;
154 obj
->Swizzle
[2] = GL_BLUE
;
155 obj
->Swizzle
[3] = GL_ALPHA
;
156 obj
->_Swizzle
= SWIZZLE_NOOP
;
157 obj
->Sampler
.sRGBDecode
= GL_DECODE_EXT
;
158 obj
->BufferObjectFormat
= GL_R8
;
159 obj
->_BufferObjectFormat
= MESA_FORMAT_R8
;
164 * Some texture initialization can't be finished until we know which
165 * target it's getting bound to (GL_TEXTURE_1D/2D/etc).
168 finish_texture_init(struct gl_context
*ctx
, GLenum target
,
169 struct gl_texture_object
*obj
)
171 GLenum filter
= GL_LINEAR
;
172 assert(obj
->Target
== 0);
175 case GL_TEXTURE_2D_MULTISAMPLE
:
176 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
180 case GL_TEXTURE_RECTANGLE_NV
:
181 case GL_TEXTURE_EXTERNAL_OES
:
182 /* have to init wrap and filter state here - kind of klunky */
183 obj
->Sampler
.WrapS
= GL_CLAMP_TO_EDGE
;
184 obj
->Sampler
.WrapT
= GL_CLAMP_TO_EDGE
;
185 obj
->Sampler
.WrapR
= GL_CLAMP_TO_EDGE
;
186 obj
->Sampler
.MinFilter
= filter
;
187 obj
->Sampler
.MagFilter
= filter
;
188 if (ctx
->Driver
.TexParameter
) {
189 static const GLfloat fparam_wrap
[1] = {(GLfloat
) GL_CLAMP_TO_EDGE
};
190 const GLfloat fparam_filter
[1] = {(GLfloat
) filter
};
191 ctx
->Driver
.TexParameter(ctx
, target
, obj
, GL_TEXTURE_WRAP_S
, fparam_wrap
);
192 ctx
->Driver
.TexParameter(ctx
, target
, obj
, GL_TEXTURE_WRAP_T
, fparam_wrap
);
193 ctx
->Driver
.TexParameter(ctx
, target
, obj
, GL_TEXTURE_WRAP_R
, fparam_wrap
);
194 ctx
->Driver
.TexParameter(ctx
, target
, obj
,
195 GL_TEXTURE_MIN_FILTER
, fparam_filter
);
196 ctx
->Driver
.TexParameter(ctx
, target
, obj
,
197 GL_TEXTURE_MAG_FILTER
, fparam_filter
);
202 /* nothing needs done */
209 * Deallocate a texture object struct. It should have already been
210 * removed from the texture object pool.
211 * Called via ctx->Driver.DeleteTexture() if not overriden by a driver.
213 * \param shared the shared GL state to which the object belongs.
214 * \param texObj the texture object to delete.
217 _mesa_delete_texture_object(struct gl_context
*ctx
,
218 struct gl_texture_object
*texObj
)
222 /* Set Target to an invalid value. With some assertions elsewhere
223 * we can try to detect possible use of deleted textures.
225 texObj
->Target
= 0x99;
227 /* free the texture images */
228 for (face
= 0; face
< 6; face
++) {
229 for (i
= 0; i
< MAX_TEXTURE_LEVELS
; i
++) {
230 if (texObj
->Image
[face
][i
]) {
231 ctx
->Driver
.DeleteTextureImage(ctx
, texObj
->Image
[face
][i
]);
236 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, NULL
);
238 /* destroy the mutex -- it may have allocated memory (eg on bsd) */
239 _glthread_DESTROY_MUTEX(texObj
->Mutex
);
243 /* free this object */
250 * Copy texture object state from one texture object to another.
251 * Use for glPush/PopAttrib.
253 * \param dest destination texture object.
254 * \param src source texture object.
257 _mesa_copy_texture_object( struct gl_texture_object
*dest
,
258 const struct gl_texture_object
*src
)
260 dest
->Target
= src
->Target
;
261 dest
->Name
= src
->Name
;
262 dest
->Priority
= src
->Priority
;
263 dest
->Sampler
.BorderColor
.f
[0] = src
->Sampler
.BorderColor
.f
[0];
264 dest
->Sampler
.BorderColor
.f
[1] = src
->Sampler
.BorderColor
.f
[1];
265 dest
->Sampler
.BorderColor
.f
[2] = src
->Sampler
.BorderColor
.f
[2];
266 dest
->Sampler
.BorderColor
.f
[3] = src
->Sampler
.BorderColor
.f
[3];
267 dest
->Sampler
.WrapS
= src
->Sampler
.WrapS
;
268 dest
->Sampler
.WrapT
= src
->Sampler
.WrapT
;
269 dest
->Sampler
.WrapR
= src
->Sampler
.WrapR
;
270 dest
->Sampler
.MinFilter
= src
->Sampler
.MinFilter
;
271 dest
->Sampler
.MagFilter
= src
->Sampler
.MagFilter
;
272 dest
->Sampler
.MinLod
= src
->Sampler
.MinLod
;
273 dest
->Sampler
.MaxLod
= src
->Sampler
.MaxLod
;
274 dest
->Sampler
.LodBias
= src
->Sampler
.LodBias
;
275 dest
->BaseLevel
= src
->BaseLevel
;
276 dest
->MaxLevel
= src
->MaxLevel
;
277 dest
->Sampler
.MaxAnisotropy
= src
->Sampler
.MaxAnisotropy
;
278 dest
->Sampler
.CompareMode
= src
->Sampler
.CompareMode
;
279 dest
->Sampler
.CompareFunc
= src
->Sampler
.CompareFunc
;
280 dest
->Sampler
.CubeMapSeamless
= src
->Sampler
.CubeMapSeamless
;
281 dest
->DepthMode
= src
->DepthMode
;
282 dest
->Sampler
.sRGBDecode
= src
->Sampler
.sRGBDecode
;
283 dest
->_MaxLevel
= src
->_MaxLevel
;
284 dest
->_MaxLambda
= src
->_MaxLambda
;
285 dest
->GenerateMipmap
= src
->GenerateMipmap
;
286 dest
->_BaseComplete
= src
->_BaseComplete
;
287 dest
->_MipmapComplete
= src
->_MipmapComplete
;
288 COPY_4V(dest
->Swizzle
, src
->Swizzle
);
289 dest
->_Swizzle
= src
->_Swizzle
;
291 dest
->RequiredTextureImageUnits
= src
->RequiredTextureImageUnits
;
296 * Free all texture images of the given texture object.
298 * \param ctx GL context.
299 * \param t texture object.
301 * \sa _mesa_clear_texture_image().
304 _mesa_clear_texture_object(struct gl_context
*ctx
,
305 struct gl_texture_object
*texObj
)
309 if (texObj
->Target
== 0)
312 for (i
= 0; i
< MAX_FACES
; i
++) {
313 for (j
= 0; j
< MAX_TEXTURE_LEVELS
; j
++) {
314 struct gl_texture_image
*texImage
= texObj
->Image
[i
][j
];
316 _mesa_clear_texture_image(ctx
, texImage
);
323 * Check if the given texture object is valid by examining its Target field.
324 * For debugging only.
327 valid_texture_object(const struct gl_texture_object
*tex
)
329 switch (tex
->Target
) {
334 case GL_TEXTURE_CUBE_MAP_ARB
:
335 case GL_TEXTURE_RECTANGLE_NV
:
336 case GL_TEXTURE_1D_ARRAY_EXT
:
337 case GL_TEXTURE_2D_ARRAY_EXT
:
338 case GL_TEXTURE_BUFFER
:
339 case GL_TEXTURE_EXTERNAL_OES
:
340 case GL_TEXTURE_CUBE_MAP_ARRAY
:
341 case GL_TEXTURE_2D_MULTISAMPLE
:
342 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
345 _mesa_problem(NULL
, "invalid reference to a deleted texture object");
348 _mesa_problem(NULL
, "invalid texture object Target 0x%x, Id = %u",
349 tex
->Target
, tex
->Name
);
356 * Reference (or unreference) a texture object.
357 * If '*ptr', decrement *ptr's refcount (and delete if it becomes zero).
358 * If 'tex' is non-null, increment its refcount.
359 * This is normally only called from the _mesa_reference_texobj() macro
360 * when there's a real pointer change.
363 _mesa_reference_texobj_(struct gl_texture_object
**ptr
,
364 struct gl_texture_object
*tex
)
369 /* Unreference the old texture */
370 GLboolean deleteFlag
= GL_FALSE
;
371 struct gl_texture_object
*oldTex
= *ptr
;
373 ASSERT(valid_texture_object(oldTex
));
374 (void) valid_texture_object
; /* silence warning in release builds */
376 _glthread_LOCK_MUTEX(oldTex
->Mutex
);
377 ASSERT(oldTex
->RefCount
> 0);
380 deleteFlag
= (oldTex
->RefCount
== 0);
381 _glthread_UNLOCK_MUTEX(oldTex
->Mutex
);
384 GET_CURRENT_CONTEXT(ctx
);
386 ctx
->Driver
.DeleteTexture(ctx
, oldTex
);
388 _mesa_problem(NULL
, "Unable to delete texture, no context");
396 /* reference new texture */
397 ASSERT(valid_texture_object(tex
));
398 _glthread_LOCK_MUTEX(tex
->Mutex
);
399 if (tex
->RefCount
== 0) {
400 /* this texture's being deleted (look just above) */
401 /* Not sure this can every really happen. Warn if it does. */
402 _mesa_problem(NULL
, "referencing deleted texture object");
409 _glthread_UNLOCK_MUTEX(tex
->Mutex
);
414 enum base_mipmap
{ BASE
, MIPMAP
};
418 * Mark a texture object as incomplete. There are actually three kinds of
420 * 1. "base incomplete": the base level of the texture is invalid so no
421 * texturing is possible.
422 * 2. "mipmap incomplete": a non-base level of the texture is invalid so
423 * mipmap filtering isn't possible, but non-mipmap filtering is.
424 * 3. "texture incompleteness": some combination of texture state and
425 * sampler state renders the texture incomplete.
427 * \param t texture object
428 * \param bm either BASE or MIPMAP to indicate what's incomplete
429 * \param fmt... string describing why it's incomplete (for debugging).
432 incomplete(struct gl_texture_object
*t
, enum base_mipmap bm
,
433 const char *fmt
, ...)
435 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_TEXTURE
) {
440 vsnprintf(s
, sizeof(s
), fmt
, args
);
443 _mesa_debug(NULL
, "Texture Obj %d incomplete because: %s\n", t
->Name
, s
);
447 t
->_BaseComplete
= GL_FALSE
;
448 t
->_MipmapComplete
= GL_FALSE
;
453 * Examine a texture object to determine if it is complete.
455 * The gl_texture_object::Complete flag will be set to GL_TRUE or GL_FALSE
458 * \param ctx GL context.
459 * \param t texture object.
461 * According to the texture target, verifies that each of the mipmaps is
462 * present and has the expected size.
465 _mesa_test_texobj_completeness( const struct gl_context
*ctx
,
466 struct gl_texture_object
*t
)
468 const GLint baseLevel
= t
->BaseLevel
;
469 const struct gl_texture_image
*baseImage
;
472 /* We'll set these to FALSE if tests fail below */
473 t
->_BaseComplete
= GL_TRUE
;
474 t
->_MipmapComplete
= GL_TRUE
;
476 if (t
->Target
== GL_TEXTURE_BUFFER
) {
477 /* Buffer textures are always considered complete. The obvious case where
478 * they would be incomplete (no BO attached) is actually specced to be
479 * undefined rendering results.
484 /* Detect cases where the application set the base level to an invalid
487 if ((baseLevel
< 0) || (baseLevel
>= MAX_TEXTURE_LEVELS
)) {
488 incomplete(t
, BASE
, "base level = %d is invalid", baseLevel
);
492 if (t
->MaxLevel
< baseLevel
) {
493 incomplete(t
, MIPMAP
, "MAX_LEVEL (%d) < BASE_LEVEL (%d)",
494 t
->MaxLevel
, baseLevel
);
498 baseImage
= t
->Image
[0][baseLevel
];
500 /* Always need the base level image */
502 incomplete(t
, BASE
, "Image[baseLevel=%d] == NULL", baseLevel
);
506 /* Check width/height/depth for zero */
507 if (baseImage
->Width
== 0 ||
508 baseImage
->Height
== 0 ||
509 baseImage
->Depth
== 0) {
510 incomplete(t
, BASE
, "texture width or height or depth = 0");
514 /* Check if the texture values are integer */
516 GLenum datatype
= _mesa_get_format_datatype(baseImage
->TexFormat
);
517 t
->_IsIntegerFormat
= datatype
== GL_INT
|| datatype
== GL_UNSIGNED_INT
;
520 /* Compute _MaxLevel (the maximum mipmap level we'll sample from given the
521 * mipmap image sizes and GL_TEXTURE_MAX_LEVEL state).
525 case GL_TEXTURE_1D_ARRAY_EXT
:
526 maxLevels
= ctx
->Const
.MaxTextureLevels
;
529 case GL_TEXTURE_2D_ARRAY_EXT
:
530 maxLevels
= ctx
->Const
.MaxTextureLevels
;
533 maxLevels
= ctx
->Const
.Max3DTextureLevels
;
535 case GL_TEXTURE_CUBE_MAP_ARB
:
536 case GL_TEXTURE_CUBE_MAP_ARRAY
:
537 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
539 case GL_TEXTURE_RECTANGLE_NV
:
540 case GL_TEXTURE_BUFFER
:
541 case GL_TEXTURE_EXTERNAL_OES
:
542 case GL_TEXTURE_2D_MULTISAMPLE
:
543 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
544 maxLevels
= 1; /* no mipmapping */
547 _mesa_problem(ctx
, "Bad t->Target in _mesa_test_texobj_completeness");
551 ASSERT(maxLevels
> 0);
553 t
->_MaxLevel
= MIN3(t
->MaxLevel
,
554 /* 'p' in the GL spec */
555 (int) (baseLevel
+ baseImage
->MaxNumLevels
- 1),
556 /* 'q' in the GL spec */
559 /* Compute _MaxLambda = q - p in the spec used during mipmapping */
560 t
->_MaxLambda
= (GLfloat
) (t
->_MaxLevel
- baseLevel
);
563 /* This texture object was created with glTexStorage1/2/3D() so we
564 * know that all the mipmap levels are the right size and all cube
565 * map faces are the same size.
566 * We don't need to do any of the additional checks below.
571 if (t
->Target
== GL_TEXTURE_CUBE_MAP_ARB
) {
572 /* Make sure that all six cube map level 0 images are the same size.
573 * Note: we know that the image's width==height (we enforce that
574 * at glTexImage time) so we only need to test the width here.
577 assert(baseImage
->Width2
== baseImage
->Height
);
578 for (face
= 1; face
< 6; face
++) {
579 assert(t
->Image
[face
][baseLevel
] == NULL
||
580 t
->Image
[face
][baseLevel
]->Width2
==
581 t
->Image
[face
][baseLevel
]->Height2
);
582 if (t
->Image
[face
][baseLevel
] == NULL
||
583 t
->Image
[face
][baseLevel
]->Width2
!= baseImage
->Width2
) {
584 incomplete(t
, BASE
, "Cube face missing or mismatched size");
591 * Do mipmap consistency checking.
592 * Note: we don't care about the current texture sampler state here.
593 * To determine texture completeness we'll either look at _BaseComplete
594 * or _MipmapComplete depending on the current minification filter mode.
598 const GLint minLevel
= baseLevel
;
599 const GLint maxLevel
= t
->_MaxLevel
;
600 const GLuint numFaces
= _mesa_num_tex_faces(t
->Target
);
601 GLuint width
, height
, depth
, face
;
603 if (minLevel
> maxLevel
) {
604 incomplete(t
, MIPMAP
, "minLevel > maxLevel");
608 /* Get the base image's dimensions */
609 width
= baseImage
->Width2
;
610 height
= baseImage
->Height2
;
611 depth
= baseImage
->Depth2
;
613 /* Note: this loop will be a no-op for RECT, BUFFER, EXTERNAL,
614 * MULTISAMPLE and MULTISAMPLE_ARRAY textures
616 for (i
= baseLevel
+ 1; i
< maxLevels
; i
++) {
617 /* Compute the expected size of image at level[i] */
621 if (height
> 1 && t
->Target
!= GL_TEXTURE_1D_ARRAY
) {
624 if (depth
> 1 && t
->Target
!= GL_TEXTURE_2D_ARRAY
&& t
->Target
!= GL_TEXTURE_CUBE_MAP_ARRAY
) {
628 /* loop over cube faces (or single face otherwise) */
629 for (face
= 0; face
< numFaces
; face
++) {
630 if (i
>= minLevel
&& i
<= maxLevel
) {
631 const struct gl_texture_image
*img
= t
->Image
[face
][i
];
634 incomplete(t
, MIPMAP
, "TexImage[%d] is missing", i
);
637 if (img
->TexFormat
!= baseImage
->TexFormat
) {
638 incomplete(t
, MIPMAP
, "Format[i] != Format[baseLevel]");
641 if (img
->Border
!= baseImage
->Border
) {
642 incomplete(t
, MIPMAP
, "Border[i] != Border[baseLevel]");
645 if (img
->Width2
!= width
) {
646 incomplete(t
, MIPMAP
, "TexImage[%d] bad width %u", i
, img
->Width2
);
649 if (img
->Height2
!= height
) {
650 incomplete(t
, MIPMAP
, "TexImage[%d] bad height %u", i
, img
->Height2
);
653 if (img
->Depth2
!= depth
) {
654 incomplete(t
, MIPMAP
, "TexImage[%d] bad depth %u", i
, img
->Depth2
);
658 /* Extra checks for cube textures */
660 /* check that cube faces are the same size */
661 if (img
->Width2
!= t
->Image
[0][i
]->Width2
||
662 img
->Height2
!= t
->Image
[0][i
]->Height2
) {
663 incomplete(t
, MIPMAP
, "CubeMap Image[n][i] bad size");
670 if (width
== 1 && height
== 1 && depth
== 1) {
671 return; /* found smallest needed mipmap, all done! */
679 * Check if the given cube map texture is "cube complete" as defined in
680 * the OpenGL specification.
683 _mesa_cube_complete(const struct gl_texture_object
*texObj
)
685 const GLint baseLevel
= texObj
->BaseLevel
;
686 const struct gl_texture_image
*img0
, *img
;
689 if (texObj
->Target
!= GL_TEXTURE_CUBE_MAP
)
692 if ((baseLevel
< 0) || (baseLevel
>= MAX_TEXTURE_LEVELS
))
695 /* check first face */
696 img0
= texObj
->Image
[0][baseLevel
];
699 img0
->Width
!= img0
->Height
)
702 /* check remaining faces vs. first face */
703 for (face
= 1; face
< 6; face
++) {
704 img
= texObj
->Image
[face
][baseLevel
];
706 img
->Width
!= img0
->Width
||
707 img
->Height
!= img0
->Height
||
708 img
->TexFormat
!= img0
->TexFormat
)
717 * Mark a texture object dirty. It forces the object to be incomplete
718 * and forces the context to re-validate its state.
720 * \param ctx GL context.
721 * \param texObj texture object.
724 _mesa_dirty_texobj(struct gl_context
*ctx
, struct gl_texture_object
*texObj
)
726 texObj
->_BaseComplete
= GL_FALSE
;
727 texObj
->_MipmapComplete
= GL_FALSE
;
728 ctx
->NewState
|= _NEW_TEXTURE
;
733 * Return pointer to a default/fallback texture of the given type/target.
734 * The texture is an RGBA texture with all texels = (0,0,0,1).
735 * That's the value a GLSL sampler should get when sampling from an
736 * incomplete texture.
738 struct gl_texture_object
*
739 _mesa_get_fallback_texture(struct gl_context
*ctx
, gl_texture_index tex
)
741 if (!ctx
->Shared
->FallbackTex
[tex
]) {
742 /* create fallback texture now */
743 const GLsizei width
= 1, height
= 1, depth
= 1;
745 struct gl_texture_object
*texObj
;
746 struct gl_texture_image
*texImage
;
748 GLuint dims
, face
, numFaces
= 1;
757 case TEXTURE_2D_ARRAY_INDEX
:
759 target
= GL_TEXTURE_2D_ARRAY
;
761 case TEXTURE_1D_ARRAY_INDEX
:
763 target
= GL_TEXTURE_1D_ARRAY
;
765 case TEXTURE_CUBE_INDEX
:
767 target
= GL_TEXTURE_CUBE_MAP
;
770 case TEXTURE_3D_INDEX
:
772 target
= GL_TEXTURE_3D
;
774 case TEXTURE_RECT_INDEX
:
776 target
= GL_TEXTURE_RECTANGLE
;
778 case TEXTURE_2D_INDEX
:
780 target
= GL_TEXTURE_2D
;
782 case TEXTURE_1D_INDEX
:
784 target
= GL_TEXTURE_1D
;
786 case TEXTURE_BUFFER_INDEX
:
788 target
= GL_TEXTURE_BUFFER
;
790 case TEXTURE_CUBE_ARRAY_INDEX
:
792 target
= GL_TEXTURE_CUBE_MAP_ARRAY
;
794 case TEXTURE_EXTERNAL_INDEX
:
796 target
= GL_TEXTURE_EXTERNAL_OES
;
798 case TEXTURE_2D_MULTISAMPLE_INDEX
:
800 target
= GL_TEXTURE_2D_MULTISAMPLE
;
802 case TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
:
804 target
= GL_TEXTURE_2D_MULTISAMPLE_ARRAY
;
811 /* create texture object */
812 texObj
= ctx
->Driver
.NewTextureObject(ctx
, 0, target
);
816 assert(texObj
->RefCount
== 1);
817 texObj
->Sampler
.MinFilter
= GL_NEAREST
;
818 texObj
->Sampler
.MagFilter
= GL_NEAREST
;
820 texFormat
= ctx
->Driver
.ChooseTextureFormat(ctx
, target
,
824 /* need a loop here just for cube maps */
825 for (face
= 0; face
< numFaces
; face
++) {
828 if (target
== GL_TEXTURE_CUBE_MAP
)
829 faceTarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ face
;
833 /* initialize level[0] texture image */
834 texImage
= _mesa_get_tex_image(ctx
, texObj
, faceTarget
, 0);
836 _mesa_init_teximage_fields(ctx
, texImage
,
838 (dims
> 1) ? height
: 1,
839 (dims
> 2) ? depth
: 1,
843 ctx
->Driver
.TexImage(ctx
, dims
, texImage
,
844 GL_RGBA
, GL_UNSIGNED_BYTE
, texel
,
845 &ctx
->DefaultPacking
);
848 _mesa_test_texobj_completeness(ctx
, texObj
);
849 assert(texObj
->_BaseComplete
);
850 assert(texObj
->_MipmapComplete
);
852 ctx
->Shared
->FallbackTex
[tex
] = texObj
;
854 return ctx
->Shared
->FallbackTex
[tex
];
859 * Compute the size of the given texture object, in bytes.
862 texture_size(const struct gl_texture_object
*texObj
)
864 const GLuint numFaces
= _mesa_num_tex_faces(texObj
->Target
);
865 GLuint face
, level
, size
= 0;
867 for (face
= 0; face
< numFaces
; face
++) {
868 for (level
= 0; level
< MAX_TEXTURE_LEVELS
; level
++) {
869 const struct gl_texture_image
*img
= texObj
->Image
[face
][level
];
871 GLuint sz
= _mesa_format_image_size(img
->TexFormat
, img
->Width
,
872 img
->Height
, img
->Depth
);
883 * Callback called from _mesa_HashWalk()
886 count_tex_size(GLuint key
, void *data
, void *userData
)
888 const struct gl_texture_object
*texObj
=
889 (const struct gl_texture_object
*) data
;
890 GLuint
*total
= (GLuint
*) userData
;
894 *total
= *total
+ texture_size(texObj
);
899 * Compute total size (in bytes) of all textures for the given context.
900 * For debugging purposes.
903 _mesa_total_texture_memory(struct gl_context
*ctx
)
905 GLuint tgt
, total
= 0;
907 _mesa_HashWalk(ctx
->Shared
->TexObjects
, count_tex_size
, &total
);
909 /* plus, the default texture objects */
910 for (tgt
= 0; tgt
< NUM_TEXTURE_TARGETS
; tgt
++) {
911 total
+= texture_size(ctx
->Shared
->DefaultTex
[tgt
]);
917 static struct gl_texture_object
*
918 invalidate_tex_image_error_check(struct gl_context
*ctx
, GLuint texture
,
919 GLint level
, const char *name
)
921 /* The GL_ARB_invalidate_subdata spec says:
923 * "If <texture> is zero or is not the name of a texture, the error
924 * INVALID_VALUE is generated."
926 * This performs the error check in a different order than listed in the
927 * spec. We have to get the texture object before we can validate the
928 * other parameters against values in the texture object.
930 struct gl_texture_object
*const t
= _mesa_lookup_texture(ctx
, texture
);
931 if (texture
== 0 || t
== NULL
) {
932 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(texture)", name
);
936 /* The GL_ARB_invalidate_subdata spec says:
938 * "If <level> is less than zero or greater than the base 2 logarithm
939 * of the maximum texture width, height, or depth, the error
940 * INVALID_VALUE is generated."
942 if (level
< 0 || level
> t
->MaxLevel
) {
943 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level)", name
);
947 /* The GL_ARB_invalidate_subdata spec says:
949 * "If the target of <texture> is TEXTURE_RECTANGLE, TEXTURE_BUFFER,
950 * TEXTURE_2D_MULTISAMPLE, or TEXTURE_2D_MULTISAMPLE_ARRAY, and <level>
951 * is not zero, the error INVALID_VALUE is generated."
955 case GL_TEXTURE_RECTANGLE
:
956 case GL_TEXTURE_BUFFER
:
957 case GL_TEXTURE_2D_MULTISAMPLE
:
958 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
959 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level)", name
);
973 /***********************************************************************/
974 /** \name API functions */
979 * Generate texture names.
981 * \param n number of texture names to be generated.
982 * \param textures an array in which will hold the generated texture names.
984 * \sa glGenTextures().
986 * Calls _mesa_HashFindFreeKeyBlock() to find a block of free texture
987 * IDs which are stored in \p textures. Corresponding empty texture
988 * objects are also generated.
991 _mesa_GenTextures( GLsizei n
, GLuint
*textures
)
993 GET_CURRENT_CONTEXT(ctx
);
997 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
998 _mesa_debug(ctx
, "glGenTextures %d\n", n
);
1001 _mesa_error( ctx
, GL_INVALID_VALUE
, "glGenTextures" );
1009 * This must be atomic (generation and allocation of texture IDs)
1011 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1013 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->TexObjects
, n
);
1015 /* Allocate new, empty texture objects */
1016 for (i
= 0; i
< n
; i
++) {
1017 struct gl_texture_object
*texObj
;
1018 GLuint name
= first
+ i
;
1020 texObj
= ctx
->Driver
.NewTextureObject(ctx
, name
, target
);
1022 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1023 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glGenTextures");
1027 /* insert into hash table */
1028 _mesa_HashInsert(ctx
->Shared
->TexObjects
, texObj
->Name
, texObj
);
1033 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1038 * Check if the given texture object is bound to the current draw or
1039 * read framebuffer. If so, Unbind it.
1042 unbind_texobj_from_fbo(struct gl_context
*ctx
,
1043 struct gl_texture_object
*texObj
)
1045 bool progress
= false;
1047 /* Section 4.4.2 (Attaching Images to Framebuffer Objects), subsection
1048 * "Attaching Texture Images to a Framebuffer," of the OpenGL 3.1 spec
1051 * "If a texture object is deleted while its image is attached to one
1052 * or more attachment points in the currently bound framebuffer, then
1053 * it is as if FramebufferTexture* had been called, with a texture of
1054 * zero, for each attachment point to which this image was attached in
1055 * the currently bound framebuffer. In other words, this texture image
1056 * is first detached from all attachment points in the currently bound
1057 * framebuffer. Note that the texture image is specifically not
1058 * detached from any other framebuffer objects. Detaching the texture
1059 * image from any other framebuffer objects is the responsibility of
1062 if (_mesa_is_user_fbo(ctx
->DrawBuffer
)) {
1063 progress
= _mesa_detach_renderbuffer(ctx
, ctx
->DrawBuffer
, texObj
);
1065 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)
1066 && ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
1067 progress
= _mesa_detach_renderbuffer(ctx
, ctx
->ReadBuffer
, texObj
)
1072 /* Vertices are already flushed by _mesa_DeleteTextures */
1073 ctx
->NewState
|= _NEW_BUFFERS
;
1078 * Check if the given texture object is bound to any texture image units and
1079 * unbind it if so (revert to default textures).
1082 unbind_texobj_from_texunits(struct gl_context
*ctx
,
1083 struct gl_texture_object
*texObj
)
1087 for (u
= 0; u
< Elements(ctx
->Texture
.Unit
); u
++) {
1088 struct gl_texture_unit
*unit
= &ctx
->Texture
.Unit
[u
];
1089 for (tex
= 0; tex
< NUM_TEXTURE_TARGETS
; tex
++) {
1090 if (texObj
== unit
->CurrentTex
[tex
]) {
1091 _mesa_reference_texobj(&unit
->CurrentTex
[tex
],
1092 ctx
->Shared
->DefaultTex
[tex
]);
1093 ASSERT(unit
->CurrentTex
[tex
]);
1102 * Delete named textures.
1104 * \param n number of textures to be deleted.
1105 * \param textures array of texture IDs to be deleted.
1107 * \sa glDeleteTextures().
1109 * If we're about to delete a texture that's currently bound to any
1110 * texture unit, unbind the texture first. Decrement the reference
1111 * count on the texture object and delete it if it's zero.
1112 * Recall that texture objects can be shared among several rendering
1116 _mesa_DeleteTextures( GLsizei n
, const GLuint
*textures
)
1118 GET_CURRENT_CONTEXT(ctx
);
1121 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1122 _mesa_debug(ctx
, "glDeleteTextures %d\n", n
);
1124 FLUSH_VERTICES(ctx
, 0); /* too complex */
1129 for (i
= 0; i
< n
; i
++) {
1130 if (textures
[i
] > 0) {
1131 struct gl_texture_object
*delObj
1132 = _mesa_lookup_texture(ctx
, textures
[i
]);
1135 _mesa_lock_texture(ctx
, delObj
);
1137 /* Check if texture is bound to any framebuffer objects.
1139 * See section 4.4.2.3 of GL_EXT_framebuffer_object.
1141 unbind_texobj_from_fbo(ctx
, delObj
);
1143 /* Check if this texture is currently bound to any texture units.
1146 unbind_texobj_from_texunits(ctx
, delObj
);
1148 _mesa_unlock_texture(ctx
, delObj
);
1150 ctx
->NewState
|= _NEW_TEXTURE
;
1152 /* The texture _name_ is now free for re-use.
1153 * Remove it from the hash table now.
1155 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1156 _mesa_HashRemove(ctx
->Shared
->TexObjects
, delObj
->Name
);
1157 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1159 /* Unreference the texobj. If refcount hits zero, the texture
1162 _mesa_reference_texobj(&delObj
, NULL
);
1170 * Convert a GL texture target enum such as GL_TEXTURE_2D or GL_TEXTURE_3D
1171 * into the corresponding Mesa texture target index.
1172 * Note that proxy targets are not valid here.
1173 * \return TEXTURE_x_INDEX or -1 if target is invalid
1176 target_enum_to_index(const struct gl_context
*ctx
, GLenum target
)
1180 return _mesa_is_desktop_gl(ctx
) ? TEXTURE_1D_INDEX
: -1;
1182 return TEXTURE_2D_INDEX
;
1184 return ctx
->API
!= API_OPENGLES
? TEXTURE_3D_INDEX
: -1;
1185 case GL_TEXTURE_CUBE_MAP
:
1186 return ctx
->Extensions
.ARB_texture_cube_map
1187 ? TEXTURE_CUBE_INDEX
: -1;
1188 case GL_TEXTURE_RECTANGLE
:
1189 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.NV_texture_rectangle
1190 ? TEXTURE_RECT_INDEX
: -1;
1191 case GL_TEXTURE_1D_ARRAY
:
1192 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
1193 ? TEXTURE_1D_ARRAY_INDEX
: -1;
1194 case GL_TEXTURE_2D_ARRAY
:
1195 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1196 || _mesa_is_gles3(ctx
)
1197 ? TEXTURE_2D_ARRAY_INDEX
: -1;
1198 case GL_TEXTURE_BUFFER
:
1199 return ctx
->API
== API_OPENGL_CORE
&&
1200 ctx
->Extensions
.ARB_texture_buffer_object
?
1201 TEXTURE_BUFFER_INDEX
: -1;
1202 case GL_TEXTURE_EXTERNAL_OES
:
1203 return _mesa_is_gles(ctx
) && ctx
->Extensions
.OES_EGL_image_external
1204 ? TEXTURE_EXTERNAL_INDEX
: -1;
1205 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1206 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_cube_map_array
1207 ? TEXTURE_CUBE_ARRAY_INDEX
: -1;
1208 case GL_TEXTURE_2D_MULTISAMPLE
:
1209 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1210 ? TEXTURE_2D_MULTISAMPLE_INDEX
: -1;
1211 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1212 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1213 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
: -1;
1221 * Bind a named texture to a texturing target.
1223 * \param target texture target.
1224 * \param texName texture name.
1226 * \sa glBindTexture().
1228 * Determines the old texture object bound and returns immediately if rebinding
1229 * the same texture. Get the current texture which is either a default texture
1230 * if name is null, a named texture from the hash, or a new texture if the
1231 * given texture name is new. Increments its reference count, binds it, and
1232 * calls dd_function_table::BindTexture. Decrements the old texture reference
1233 * count and deletes it if it reaches zero.
1236 _mesa_BindTexture( GLenum target
, GLuint texName
)
1238 GET_CURRENT_CONTEXT(ctx
);
1239 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
1240 struct gl_texture_object
*newTexObj
= NULL
;
1243 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1244 _mesa_debug(ctx
, "glBindTexture %s %d\n",
1245 _mesa_lookup_enum_by_nr(target
), (GLint
) texName
);
1247 targetIndex
= target_enum_to_index(ctx
, target
);
1248 if (targetIndex
< 0) {
1249 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindTexture(target)");
1252 assert(targetIndex
< NUM_TEXTURE_TARGETS
);
1255 * Get pointer to new texture object (newTexObj)
1258 /* Use a default texture object */
1259 newTexObj
= ctx
->Shared
->DefaultTex
[targetIndex
];
1262 /* non-default texture object */
1263 newTexObj
= _mesa_lookup_texture(ctx
, texName
);
1265 /* error checking */
1266 if (newTexObj
->Target
!= 0 && newTexObj
->Target
!= target
) {
1267 /* the named texture object's target doesn't match the given target */
1268 _mesa_error( ctx
, GL_INVALID_OPERATION
,
1269 "glBindTexture(target mismatch)" );
1272 if (newTexObj
->Target
== 0) {
1273 finish_texture_init(ctx
, target
, newTexObj
);
1277 if (ctx
->API
== API_OPENGL_CORE
) {
1278 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindTexture(non-gen name)");
1282 /* if this is a new texture id, allocate a texture object now */
1283 newTexObj
= ctx
->Driver
.NewTextureObject(ctx
, texName
, target
);
1285 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindTexture");
1289 /* and insert it into hash table */
1290 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1291 _mesa_HashInsert(ctx
->Shared
->TexObjects
, texName
, newTexObj
);
1292 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1294 newTexObj
->Target
= target
;
1297 assert(valid_texture_object(newTexObj
));
1299 /* Check if this texture is only used by this context and is already bound.
1300 * If so, just return.
1303 GLboolean early_out
;
1304 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1305 early_out
= ((ctx
->Shared
->RefCount
== 1)
1306 && (newTexObj
== texUnit
->CurrentTex
[targetIndex
]));
1307 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1313 /* flush before changing binding */
1314 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1316 /* Do the actual binding. The refcount on the previously bound
1317 * texture object will be decremented. It'll be deleted if the
1320 _mesa_reference_texobj(&texUnit
->CurrentTex
[targetIndex
], newTexObj
);
1321 ASSERT(texUnit
->CurrentTex
[targetIndex
]);
1323 /* Pass BindTexture call to device driver */
1324 if (ctx
->Driver
.BindTexture
)
1325 ctx
->Driver
.BindTexture(ctx
, target
, newTexObj
);
1330 * Set texture priorities.
1332 * \param n number of textures.
1333 * \param texName texture names.
1334 * \param priorities corresponding texture priorities.
1336 * \sa glPrioritizeTextures().
1338 * Looks up each texture in the hash, clamps the corresponding priority between
1339 * 0.0 and 1.0, and calls dd_function_table::PrioritizeTexture.
1342 _mesa_PrioritizeTextures( GLsizei n
, const GLuint
*texName
,
1343 const GLclampf
*priorities
)
1345 GET_CURRENT_CONTEXT(ctx
);
1348 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1349 _mesa_debug(ctx
, "glPrioritizeTextures %d\n", n
);
1351 FLUSH_VERTICES(ctx
, 0);
1354 _mesa_error( ctx
, GL_INVALID_VALUE
, "glPrioritizeTextures" );
1361 for (i
= 0; i
< n
; i
++) {
1362 if (texName
[i
] > 0) {
1363 struct gl_texture_object
*t
= _mesa_lookup_texture(ctx
, texName
[i
]);
1365 t
->Priority
= CLAMP( priorities
[i
], 0.0F
, 1.0F
);
1370 ctx
->NewState
|= _NEW_TEXTURE
;
1376 * See if textures are loaded in texture memory.
1378 * \param n number of textures to query.
1379 * \param texName array with the texture names.
1380 * \param residences array which will hold the residence status.
1382 * \return GL_TRUE if all textures are resident and \p residences is left unchanged,
1384 * Note: we assume all textures are always resident
1386 GLboolean GLAPIENTRY
1387 _mesa_AreTexturesResident(GLsizei n
, const GLuint
*texName
,
1388 GLboolean
*residences
)
1390 GET_CURRENT_CONTEXT(ctx
);
1391 GLboolean allResident
= GL_TRUE
;
1393 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1395 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1396 _mesa_debug(ctx
, "glAreTexturesResident %d\n", n
);
1399 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident(n)");
1403 if (!texName
|| !residences
)
1406 /* We only do error checking on the texture names */
1407 for (i
= 0; i
< n
; i
++) {
1408 struct gl_texture_object
*t
;
1409 if (texName
[i
] == 0) {
1410 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident");
1413 t
= _mesa_lookup_texture(ctx
, texName
[i
]);
1415 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident");
1425 * See if a name corresponds to a texture.
1427 * \param texture texture name.
1429 * \return GL_TRUE if texture name corresponds to a texture, or GL_FALSE
1432 * \sa glIsTexture().
1434 * Calls _mesa_HashLookup().
1436 GLboolean GLAPIENTRY
1437 _mesa_IsTexture( GLuint texture
)
1439 struct gl_texture_object
*t
;
1440 GET_CURRENT_CONTEXT(ctx
);
1441 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1443 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1444 _mesa_debug(ctx
, "glIsTexture %d\n", texture
);
1449 t
= _mesa_lookup_texture(ctx
, texture
);
1451 /* IsTexture is true only after object has been bound once. */
1452 return t
&& t
->Target
;
1457 * Simplest implementation of texture locking: grab the shared tex
1458 * mutex. Examine the shared context state timestamp and if there has
1459 * been a change, set the appropriate bits in ctx->NewState.
1461 * This is used to deal with synchronizing things when a texture object
1462 * is used/modified by different contexts (or threads) which are sharing
1465 * See also _mesa_lock/unlock_texture() in teximage.h
1468 _mesa_lock_context_textures( struct gl_context
*ctx
)
1470 _glthread_LOCK_MUTEX(ctx
->Shared
->TexMutex
);
1472 if (ctx
->Shared
->TextureStateStamp
!= ctx
->TextureStateTimestamp
) {
1473 ctx
->NewState
|= _NEW_TEXTURE
;
1474 ctx
->TextureStateTimestamp
= ctx
->Shared
->TextureStateStamp
;
1480 _mesa_unlock_context_textures( struct gl_context
*ctx
)
1482 assert(ctx
->Shared
->TextureStateStamp
== ctx
->TextureStateTimestamp
);
1483 _glthread_UNLOCK_MUTEX(ctx
->Shared
->TexMutex
);
1487 _mesa_InvalidateTexSubImage(GLuint texture
, GLint level
, GLint xoffset
,
1488 GLint yoffset
, GLint zoffset
, GLsizei width
,
1489 GLsizei height
, GLsizei depth
)
1491 struct gl_texture_object
*t
;
1492 struct gl_texture_image
*image
;
1493 GET_CURRENT_CONTEXT(ctx
);
1495 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1496 _mesa_debug(ctx
, "glInvalidateTexSubImage %d\n", texture
);
1498 t
= invalidate_tex_image_error_check(ctx
, texture
, level
,
1499 "glInvalidateTexSubImage");
1501 /* The GL_ARB_invalidate_subdata spec says:
1503 * "...the specified subregion must be between -<b> and <dim>+<b> where
1504 * <dim> is the size of the dimension of the texture image, and <b> is
1505 * the size of the border of that texture image, otherwise
1506 * INVALID_VALUE is generated (border is not applied to dimensions that
1507 * don't exist in a given texture target)."
1509 image
= t
->Image
[0][level
];
1518 /* The GL_ARB_invalidate_subdata spec says:
1520 * "For texture targets that don't have certain dimensions, this
1521 * command treats those dimensions as having a size of 1. For
1522 * example, to invalidate a portion of a two-dimensional texture,
1523 * the application would use <zoffset> equal to zero and <depth>
1526 switch (t
->Target
) {
1527 case GL_TEXTURE_BUFFER
:
1536 xBorder
= image
->Border
;
1539 imageWidth
= image
->Width
;
1543 case GL_TEXTURE_1D_ARRAY
:
1544 xBorder
= image
->Border
;
1547 imageWidth
= image
->Width
;
1548 imageHeight
= image
->Height
;
1552 case GL_TEXTURE_CUBE_MAP
:
1553 case GL_TEXTURE_RECTANGLE
:
1554 case GL_TEXTURE_2D_MULTISAMPLE
:
1555 xBorder
= image
->Border
;
1556 yBorder
= image
->Border
;
1558 imageWidth
= image
->Width
;
1559 imageHeight
= image
->Height
;
1562 case GL_TEXTURE_2D_ARRAY
:
1563 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1564 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1565 xBorder
= image
->Border
;
1566 yBorder
= image
->Border
;
1568 imageWidth
= image
->Width
;
1569 imageHeight
= image
->Height
;
1570 imageDepth
= image
->Depth
;
1573 xBorder
= image
->Border
;
1574 yBorder
= image
->Border
;
1575 zBorder
= image
->Border
;
1576 imageWidth
= image
->Width
;
1577 imageHeight
= image
->Height
;
1578 imageDepth
= image
->Depth
;
1581 assert(!"Should not get here.");
1591 if (xoffset
< -xBorder
) {
1592 _mesa_error(ctx
, GL_INVALID_VALUE
, "glInvalidateSubTexImage(xoffset)");
1596 if (xoffset
+ width
> imageWidth
+ xBorder
) {
1597 _mesa_error(ctx
, GL_INVALID_VALUE
,
1598 "glInvalidateSubTexImage(xoffset+width)");
1602 if (yoffset
< -yBorder
) {
1603 _mesa_error(ctx
, GL_INVALID_VALUE
, "glInvalidateSubTexImage(yoffset)");
1607 if (yoffset
+ height
> imageHeight
+ yBorder
) {
1608 _mesa_error(ctx
, GL_INVALID_VALUE
,
1609 "glInvalidateSubTexImage(yoffset+height)");
1613 if (zoffset
< -zBorder
) {
1614 _mesa_error(ctx
, GL_INVALID_VALUE
,
1615 "glInvalidateSubTexImage(zoffset)");
1619 if (zoffset
+ depth
> imageDepth
+ zBorder
) {
1620 _mesa_error(ctx
, GL_INVALID_VALUE
,
1621 "glInvalidateSubTexImage(zoffset+depth)");
1626 /* We don't actually do anything for this yet. Just return after
1627 * validating the parameters and generating the required errors.
1633 _mesa_InvalidateTexImage(GLuint texture
, GLint level
)
1635 GET_CURRENT_CONTEXT(ctx
);
1637 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1638 _mesa_debug(ctx
, "glInvalidateTexImage(%d, %d)\n", texture
, level
);
1640 invalidate_tex_image_error_check(ctx
, texture
, level
,
1641 "glInvalidateTexImage");
1643 /* We don't actually do anything for this yet. Just return after
1644 * validating the parameters and generating the required errors.