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 "mfeatures.h"
32 #include "bufferobj.h"
45 #include "program/prog_instruction.h"
49 /**********************************************************************/
50 /** \name Internal functions */
55 * Return the gl_texture_object for a given ID.
57 struct gl_texture_object
*
58 _mesa_lookup_texture(struct gl_context
*ctx
, GLuint id
)
60 return (struct gl_texture_object
*)
61 _mesa_HashLookup(ctx
->Shared
->TexObjects
, id
);
67 * Allocate and initialize a new texture object. But don't put it into the
68 * texture object hash table.
70 * Called via ctx->Driver.NewTextureObject, unless overridden by a device
73 * \param shared the shared GL state structure to contain the texture object
74 * \param name integer name for the texture object
75 * \param target either GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D,
76 * GL_TEXTURE_CUBE_MAP_ARB or GL_TEXTURE_RECTANGLE_NV. zero is ok for the sake
79 * \return pointer to new texture object.
81 struct gl_texture_object
*
82 _mesa_new_texture_object( struct gl_context
*ctx
, GLuint name
, GLenum target
)
84 struct gl_texture_object
*obj
;
86 obj
= MALLOC_STRUCT(gl_texture_object
);
87 _mesa_initialize_texture_object(obj
, name
, target
);
93 * Initialize a new texture object to default values.
94 * \param obj the texture object
95 * \param name the texture name
96 * \param target the texture target
99 _mesa_initialize_texture_object( 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
);
114 memset(obj
, 0, sizeof(*obj
));
115 /* init the non-zero fields */
116 _glthread_INIT_MUTEX(obj
->Mutex
);
119 obj
->Target
= target
;
120 obj
->Priority
= 1.0F
;
122 obj
->MaxLevel
= 1000;
124 /* must be one; no support for (YUV) planes in separate buffers */
125 obj
->RequiredTextureImageUnits
= 1;
128 if (target
== GL_TEXTURE_RECTANGLE_NV
||
129 target
== GL_TEXTURE_EXTERNAL_OES
) {
130 obj
->Sampler
.WrapS
= GL_CLAMP_TO_EDGE
;
131 obj
->Sampler
.WrapT
= GL_CLAMP_TO_EDGE
;
132 obj
->Sampler
.WrapR
= GL_CLAMP_TO_EDGE
;
133 obj
->Sampler
.MinFilter
= GL_LINEAR
;
136 obj
->Sampler
.WrapS
= GL_REPEAT
;
137 obj
->Sampler
.WrapT
= GL_REPEAT
;
138 obj
->Sampler
.WrapR
= GL_REPEAT
;
139 obj
->Sampler
.MinFilter
= GL_NEAREST_MIPMAP_LINEAR
;
141 obj
->Sampler
.MagFilter
= GL_LINEAR
;
142 obj
->Sampler
.MinLod
= -1000.0;
143 obj
->Sampler
.MaxLod
= 1000.0;
144 obj
->Sampler
.LodBias
= 0.0;
145 obj
->Sampler
.MaxAnisotropy
= 1.0;
146 obj
->Sampler
.CompareMode
= GL_NONE
; /* ARB_shadow */
147 obj
->Sampler
.CompareFunc
= GL_LEQUAL
; /* ARB_shadow */
148 obj
->DepthMode
= GL_LUMINANCE
;
149 obj
->Sampler
.CubeMapSeamless
= GL_FALSE
;
150 obj
->Swizzle
[0] = GL_RED
;
151 obj
->Swizzle
[1] = GL_GREEN
;
152 obj
->Swizzle
[2] = GL_BLUE
;
153 obj
->Swizzle
[3] = GL_ALPHA
;
154 obj
->_Swizzle
= SWIZZLE_NOOP
;
155 obj
->Sampler
.sRGBDecode
= GL_DECODE_EXT
;
156 obj
->BufferObjectFormat
= GL_LUMINANCE8
;
157 obj
->_BufferObjectFormat
= MESA_FORMAT_L8
;
162 * Some texture initialization can't be finished until we know which
163 * target it's getting bound to (GL_TEXTURE_1D/2D/etc).
166 finish_texture_init(struct gl_context
*ctx
, GLenum target
,
167 struct gl_texture_object
*obj
)
169 assert(obj
->Target
== 0);
171 if (target
== GL_TEXTURE_RECTANGLE_NV
||
172 target
== GL_TEXTURE_EXTERNAL_OES
) {
173 /* have to init wrap and filter state here - kind of klunky */
174 obj
->Sampler
.WrapS
= GL_CLAMP_TO_EDGE
;
175 obj
->Sampler
.WrapT
= GL_CLAMP_TO_EDGE
;
176 obj
->Sampler
.WrapR
= GL_CLAMP_TO_EDGE
;
177 obj
->Sampler
.MinFilter
= GL_LINEAR
;
178 if (ctx
->Driver
.TexParameter
) {
179 static const GLfloat fparam_wrap
[1] = {(GLfloat
) GL_CLAMP_TO_EDGE
};
180 static const GLfloat fparam_filter
[1] = {(GLfloat
) GL_LINEAR
};
181 ctx
->Driver
.TexParameter(ctx
, target
, obj
, GL_TEXTURE_WRAP_S
, fparam_wrap
);
182 ctx
->Driver
.TexParameter(ctx
, target
, obj
, GL_TEXTURE_WRAP_T
, fparam_wrap
);
183 ctx
->Driver
.TexParameter(ctx
, target
, obj
, GL_TEXTURE_WRAP_R
, fparam_wrap
);
184 ctx
->Driver
.TexParameter(ctx
, target
, obj
, GL_TEXTURE_MIN_FILTER
, fparam_filter
);
191 * Deallocate a texture object struct. It should have already been
192 * removed from the texture object pool.
193 * Called via ctx->Driver.DeleteTexture() if not overriden by a driver.
195 * \param shared the shared GL state to which the object belongs.
196 * \param texObj the texture object to delete.
199 _mesa_delete_texture_object(struct gl_context
*ctx
,
200 struct gl_texture_object
*texObj
)
204 /* Set Target to an invalid value. With some assertions elsewhere
205 * we can try to detect possible use of deleted textures.
207 texObj
->Target
= 0x99;
209 /* free the texture images */
210 for (face
= 0; face
< 6; face
++) {
211 for (i
= 0; i
< MAX_TEXTURE_LEVELS
; i
++) {
212 if (texObj
->Image
[face
][i
]) {
213 ctx
->Driver
.DeleteTextureImage(ctx
, texObj
->Image
[face
][i
]);
218 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, NULL
);
220 /* destroy the mutex -- it may have allocated memory (eg on bsd) */
221 _glthread_DESTROY_MUTEX(texObj
->Mutex
);
223 /* free this object */
230 * Copy texture object state from one texture object to another.
231 * Use for glPush/PopAttrib.
233 * \param dest destination texture object.
234 * \param src source texture object.
237 _mesa_copy_texture_object( struct gl_texture_object
*dest
,
238 const struct gl_texture_object
*src
)
240 dest
->Target
= src
->Target
;
241 dest
->Name
= src
->Name
;
242 dest
->Priority
= src
->Priority
;
243 dest
->Sampler
.BorderColor
.f
[0] = src
->Sampler
.BorderColor
.f
[0];
244 dest
->Sampler
.BorderColor
.f
[1] = src
->Sampler
.BorderColor
.f
[1];
245 dest
->Sampler
.BorderColor
.f
[2] = src
->Sampler
.BorderColor
.f
[2];
246 dest
->Sampler
.BorderColor
.f
[3] = src
->Sampler
.BorderColor
.f
[3];
247 dest
->Sampler
.WrapS
= src
->Sampler
.WrapS
;
248 dest
->Sampler
.WrapT
= src
->Sampler
.WrapT
;
249 dest
->Sampler
.WrapR
= src
->Sampler
.WrapR
;
250 dest
->Sampler
.MinFilter
= src
->Sampler
.MinFilter
;
251 dest
->Sampler
.MagFilter
= src
->Sampler
.MagFilter
;
252 dest
->Sampler
.MinLod
= src
->Sampler
.MinLod
;
253 dest
->Sampler
.MaxLod
= src
->Sampler
.MaxLod
;
254 dest
->Sampler
.LodBias
= src
->Sampler
.LodBias
;
255 dest
->BaseLevel
= src
->BaseLevel
;
256 dest
->MaxLevel
= src
->MaxLevel
;
257 dest
->Sampler
.MaxAnisotropy
= src
->Sampler
.MaxAnisotropy
;
258 dest
->Sampler
.CompareMode
= src
->Sampler
.CompareMode
;
259 dest
->Sampler
.CompareFunc
= src
->Sampler
.CompareFunc
;
260 dest
->Sampler
.CubeMapSeamless
= src
->Sampler
.CubeMapSeamless
;
261 dest
->DepthMode
= src
->DepthMode
;
262 dest
->Sampler
.sRGBDecode
= src
->Sampler
.sRGBDecode
;
263 dest
->_MaxLevel
= src
->_MaxLevel
;
264 dest
->_MaxLambda
= src
->_MaxLambda
;
265 dest
->GenerateMipmap
= src
->GenerateMipmap
;
266 dest
->_BaseComplete
= src
->_BaseComplete
;
267 dest
->_MipmapComplete
= src
->_MipmapComplete
;
268 COPY_4V(dest
->Swizzle
, src
->Swizzle
);
269 dest
->_Swizzle
= src
->_Swizzle
;
271 dest
->RequiredTextureImageUnits
= src
->RequiredTextureImageUnits
;
276 * Free all texture images of the given texture object.
278 * \param ctx GL context.
279 * \param t texture object.
281 * \sa _mesa_clear_texture_image().
284 _mesa_clear_texture_object(struct gl_context
*ctx
,
285 struct gl_texture_object
*texObj
)
289 if (texObj
->Target
== 0)
292 for (i
= 0; i
< MAX_FACES
; i
++) {
293 for (j
= 0; j
< MAX_TEXTURE_LEVELS
; j
++) {
294 struct gl_texture_image
*texImage
= texObj
->Image
[i
][j
];
296 _mesa_clear_texture_image(ctx
, texImage
);
303 * Check if the given texture object is valid by examining its Target field.
304 * For debugging only.
307 valid_texture_object(const struct gl_texture_object
*tex
)
309 switch (tex
->Target
) {
314 case GL_TEXTURE_CUBE_MAP_ARB
:
315 case GL_TEXTURE_RECTANGLE_NV
:
316 case GL_TEXTURE_1D_ARRAY_EXT
:
317 case GL_TEXTURE_2D_ARRAY_EXT
:
318 case GL_TEXTURE_BUFFER
:
319 case GL_TEXTURE_EXTERNAL_OES
:
320 case GL_TEXTURE_CUBE_MAP_ARRAY
:
323 _mesa_problem(NULL
, "invalid reference to a deleted texture object");
326 _mesa_problem(NULL
, "invalid texture object Target 0x%x, Id = %u",
327 tex
->Target
, tex
->Name
);
334 * Reference (or unreference) a texture object.
335 * If '*ptr', decrement *ptr's refcount (and delete if it becomes zero).
336 * If 'tex' is non-null, increment its refcount.
337 * This is normally only called from the _mesa_reference_texobj() macro
338 * when there's a real pointer change.
341 _mesa_reference_texobj_(struct gl_texture_object
**ptr
,
342 struct gl_texture_object
*tex
)
347 /* Unreference the old texture */
348 GLboolean deleteFlag
= GL_FALSE
;
349 struct gl_texture_object
*oldTex
= *ptr
;
351 ASSERT(valid_texture_object(oldTex
));
352 (void) valid_texture_object
; /* silence warning in release builds */
354 _glthread_LOCK_MUTEX(oldTex
->Mutex
);
355 ASSERT(oldTex
->RefCount
> 0);
358 deleteFlag
= (oldTex
->RefCount
== 0);
359 _glthread_UNLOCK_MUTEX(oldTex
->Mutex
);
362 GET_CURRENT_CONTEXT(ctx
);
364 ctx
->Driver
.DeleteTexture(ctx
, oldTex
);
366 _mesa_problem(NULL
, "Unable to delete texture, no context");
374 /* reference new texture */
375 ASSERT(valid_texture_object(tex
));
376 _glthread_LOCK_MUTEX(tex
->Mutex
);
377 if (tex
->RefCount
== 0) {
378 /* this texture's being deleted (look just above) */
379 /* Not sure this can every really happen. Warn if it does. */
380 _mesa_problem(NULL
, "referencing deleted texture object");
387 _glthread_UNLOCK_MUTEX(tex
->Mutex
);
392 enum base_mipmap
{ BASE
, MIPMAP
};
396 * Mark a texture object as incomplete. There are actually three kinds of
398 * 1. "base incomplete": the base level of the texture is invalid so no
399 * texturing is possible.
400 * 2. "mipmap incomplete": a non-base level of the texture is invalid so
401 * mipmap filtering isn't possible, but non-mipmap filtering is.
402 * 3. "texture incompleteness": some combination of texture state and
403 * sampler state renders the texture incomplete.
405 * \param t texture object
406 * \param bm either BASE or MIPMAP to indicate what's incomplete
407 * \param fmt... string describing why it's incomplete (for debugging).
410 incomplete(struct gl_texture_object
*t
, enum base_mipmap bm
,
411 const char *fmt
, ...)
413 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_TEXTURE
) {
418 vsnprintf(s
, sizeof(s
), fmt
, args
);
421 _mesa_debug(NULL
, "Texture Obj %d incomplete because: %s\n", t
->Name
, s
);
425 t
->_BaseComplete
= GL_FALSE
;
426 t
->_MipmapComplete
= GL_FALSE
;
431 * Examine a texture object to determine if it is complete.
433 * The gl_texture_object::Complete flag will be set to GL_TRUE or GL_FALSE
436 * \param ctx GL context.
437 * \param t texture object.
439 * According to the texture target, verifies that each of the mipmaps is
440 * present and has the expected size.
443 _mesa_test_texobj_completeness( const struct gl_context
*ctx
,
444 struct gl_texture_object
*t
)
446 const GLint baseLevel
= t
->BaseLevel
;
447 const struct gl_texture_image
*baseImage
;
450 /* We'll set these to FALSE if tests fail below */
451 t
->_BaseComplete
= GL_TRUE
;
452 t
->_MipmapComplete
= GL_TRUE
;
454 if (t
->Target
== GL_TEXTURE_BUFFER
) {
455 /* Buffer textures are always considered complete. The obvious case where
456 * they would be incomplete (no BO attached) is actually specced to be
457 * undefined rendering results.
462 /* Detect cases where the application set the base level to an invalid
465 if ((baseLevel
< 0) || (baseLevel
>= MAX_TEXTURE_LEVELS
)) {
466 incomplete(t
, BASE
, "base level = %d is invalid", baseLevel
);
470 if (t
->MaxLevel
< baseLevel
) {
471 incomplete(t
, MIPMAP
, "MAX_LEVEL (%d) < BASE_LEVEL (%d)",
472 t
->MaxLevel
, baseLevel
);
476 baseImage
= t
->Image
[0][baseLevel
];
478 /* Always need the base level image */
480 incomplete(t
, BASE
, "Image[baseLevel=%d] == NULL", baseLevel
);
484 /* Check width/height/depth for zero */
485 if (baseImage
->Width
== 0 ||
486 baseImage
->Height
== 0 ||
487 baseImage
->Depth
== 0) {
488 incomplete(t
, BASE
, "texture width or height or depth = 0");
492 /* Check if the texture values are integer */
494 GLenum datatype
= _mesa_get_format_datatype(baseImage
->TexFormat
);
495 t
->_IsIntegerFormat
= datatype
== GL_INT
|| datatype
== GL_UNSIGNED_INT
;
498 /* Compute _MaxLevel (the maximum mipmap level we'll sample from given the
499 * mipmap image sizes and GL_TEXTURE_MAX_LEVEL state).
503 case GL_TEXTURE_1D_ARRAY_EXT
:
504 maxLevels
= ctx
->Const
.MaxTextureLevels
;
507 case GL_TEXTURE_2D_ARRAY_EXT
:
508 maxLevels
= ctx
->Const
.MaxTextureLevels
;
511 maxLevels
= ctx
->Const
.Max3DTextureLevels
;
513 case GL_TEXTURE_CUBE_MAP_ARB
:
514 case GL_TEXTURE_CUBE_MAP_ARRAY
:
515 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
517 case GL_TEXTURE_RECTANGLE_NV
:
518 case GL_TEXTURE_BUFFER
:
519 case GL_TEXTURE_EXTERNAL_OES
:
520 maxLevels
= 1; /* no mipmapping */
523 _mesa_problem(ctx
, "Bad t->Target in _mesa_test_texobj_completeness");
527 ASSERT(maxLevels
> 0);
530 baseLevel
+ baseImage
->MaxNumLevels
- 1; /* 'p' in the GL spec */
531 t
->_MaxLevel
= MIN2(t
->_MaxLevel
, t
->MaxLevel
);
532 t
->_MaxLevel
= MIN2(t
->_MaxLevel
, maxLevels
- 1); /* 'q' in the GL spec */
534 /* Compute _MaxLambda = q - b (see the 1.2 spec) used during mipmapping */
535 t
->_MaxLambda
= (GLfloat
) (t
->_MaxLevel
- baseLevel
);
538 /* This texture object was created with glTexStorage1/2/3D() so we
539 * know that all the mipmap levels are the right size and all cube
540 * map faces are the same size.
541 * We don't need to do any of the additional checks below.
546 if (t
->Target
== GL_TEXTURE_CUBE_MAP_ARB
) {
547 /* Make sure that all six cube map level 0 images are the same size.
548 * Note: we know that the image's width==height (we enforce that
549 * at glTexImage time) so we only need to test the width here.
552 assert(baseImage
->Width2
== baseImage
->Height
);
553 for (face
= 1; face
< 6; face
++) {
554 assert(t
->Image
[face
][baseLevel
] == NULL
||
555 t
->Image
[face
][baseLevel
]->Width2
==
556 t
->Image
[face
][baseLevel
]->Height2
);
557 if (t
->Image
[face
][baseLevel
] == NULL
||
558 t
->Image
[face
][baseLevel
]->Width2
!= baseImage
->Width2
) {
559 incomplete(t
, BASE
, "Cube face missing or mismatched size");
566 * Do mipmap consistency checking.
567 * Note: we don't care about the current texture sampler state here.
568 * To determine texture completeness we'll either look at _BaseComplete
569 * or _MipmapComplete depending on the current minification filter mode.
573 const GLint minLevel
= baseLevel
;
574 const GLint maxLevel
= t
->_MaxLevel
;
575 const GLuint numFaces
= _mesa_num_tex_faces(t
->Target
);
576 GLuint width
, height
, depth
, face
;
578 if (minLevel
> maxLevel
) {
579 incomplete(t
, MIPMAP
, "minLevel > maxLevel");
583 /* Get the base image's dimensions */
584 width
= baseImage
->Width2
;
585 height
= baseImage
->Height2
;
586 depth
= baseImage
->Depth2
;
588 /* Note: this loop will be a no-op for RECT, BUFFER, EXTERNAL textures */
589 for (i
= baseLevel
+ 1; i
< maxLevels
; i
++) {
590 /* Compute the expected size of image at level[i] */
594 if (height
> 1 && t
->Target
!= GL_TEXTURE_1D_ARRAY
) {
597 if (depth
> 1 && t
->Target
!= GL_TEXTURE_2D_ARRAY
&& t
->Target
!= GL_TEXTURE_CUBE_MAP_ARRAY
) {
601 /* loop over cube faces (or single face otherwise) */
602 for (face
= 0; face
< numFaces
; face
++) {
603 if (i
>= minLevel
&& i
<= maxLevel
) {
604 const struct gl_texture_image
*img
= t
->Image
[face
][i
];
607 incomplete(t
, MIPMAP
, "TexImage[%d] is missing", i
);
610 if (img
->TexFormat
!= baseImage
->TexFormat
) {
611 incomplete(t
, MIPMAP
, "Format[i] != Format[baseLevel]");
614 if (img
->Border
!= baseImage
->Border
) {
615 incomplete(t
, MIPMAP
, "Border[i] != Border[baseLevel]");
618 if (img
->Width2
!= width
) {
619 incomplete(t
, MIPMAP
, "TexImage[%d] bad width %u", i
, img
->Width2
);
622 if (img
->Height2
!= height
) {
623 incomplete(t
, MIPMAP
, "TexImage[%d] bad height %u", i
, img
->Height2
);
626 if (img
->Depth2
!= depth
) {
627 incomplete(t
, MIPMAP
, "TexImage[%d] bad depth %u", i
, img
->Depth2
);
631 /* Extra checks for cube textures */
633 /* check that cube faces are the same size */
634 if (img
->Width2
!= t
->Image
[0][i
]->Width2
||
635 img
->Height2
!= t
->Image
[0][i
]->Height2
) {
636 incomplete(t
, MIPMAP
, "CubeMap Image[n][i] bad size");
643 if (width
== 1 && height
== 1 && depth
== 1) {
644 return; /* found smallest needed mipmap, all done! */
652 * Check if the given cube map texture is "cube complete" as defined in
653 * the OpenGL specification.
656 _mesa_cube_complete(const struct gl_texture_object
*texObj
)
658 const GLint baseLevel
= texObj
->BaseLevel
;
659 const struct gl_texture_image
*img0
, *img
;
662 if (texObj
->Target
!= GL_TEXTURE_CUBE_MAP
)
665 if ((baseLevel
< 0) || (baseLevel
>= MAX_TEXTURE_LEVELS
))
668 /* check first face */
669 img0
= texObj
->Image
[0][baseLevel
];
672 img0
->Width
!= img0
->Height
)
675 /* check remaining faces vs. first face */
676 for (face
= 1; face
< 6; face
++) {
677 img
= texObj
->Image
[face
][baseLevel
];
679 img
->Width
!= img0
->Width
||
680 img
->Height
!= img0
->Height
||
681 img
->TexFormat
!= img0
->TexFormat
)
690 * Mark a texture object dirty. It forces the object to be incomplete
691 * and optionally forces the context to re-validate its state.
693 * \param ctx GL context.
694 * \param texObj texture object.
695 * \param invalidate_state also invalidate context state.
698 _mesa_dirty_texobj(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
699 GLboolean invalidate_state
)
701 texObj
->_BaseComplete
= GL_FALSE
;
702 texObj
->_MipmapComplete
= GL_FALSE
;
703 if (invalidate_state
)
704 ctx
->NewState
|= _NEW_TEXTURE
;
709 * Return pointer to a default/fallback texture of the given type/target.
710 * The texture is an RGBA texture with all texels = (0,0,0,1).
711 * That's the value a GLSL sampler should get when sampling from an
712 * incomplete texture.
714 struct gl_texture_object
*
715 _mesa_get_fallback_texture(struct gl_context
*ctx
, gl_texture_index tex
)
717 if (!ctx
->Shared
->FallbackTex
[tex
]) {
718 /* create fallback texture now */
719 const GLsizei width
= 1, height
= 1, depth
= 1;
721 struct gl_texture_object
*texObj
;
722 struct gl_texture_image
*texImage
;
724 GLuint dims
, face
, numFaces
= 1;
733 case TEXTURE_2D_ARRAY_INDEX
:
735 target
= GL_TEXTURE_2D_ARRAY
;
737 case TEXTURE_1D_ARRAY_INDEX
:
739 target
= GL_TEXTURE_1D_ARRAY
;
741 case TEXTURE_CUBE_INDEX
:
743 target
= GL_TEXTURE_CUBE_MAP
;
746 case TEXTURE_3D_INDEX
:
748 target
= GL_TEXTURE_3D
;
750 case TEXTURE_RECT_INDEX
:
752 target
= GL_TEXTURE_RECTANGLE
;
754 case TEXTURE_2D_INDEX
:
756 target
= GL_TEXTURE_2D
;
758 case TEXTURE_1D_INDEX
:
760 target
= GL_TEXTURE_1D
;
762 case TEXTURE_BUFFER_INDEX
:
764 target
= GL_TEXTURE_BUFFER
;
766 case TEXTURE_CUBE_ARRAY_INDEX
:
768 target
= GL_TEXTURE_CUBE_MAP_ARRAY
;
770 case TEXTURE_EXTERNAL_INDEX
:
772 target
= GL_TEXTURE_EXTERNAL_OES
;
779 /* create texture object */
780 texObj
= ctx
->Driver
.NewTextureObject(ctx
, 0, target
);
784 assert(texObj
->RefCount
== 1);
785 texObj
->Sampler
.MinFilter
= GL_NEAREST
;
786 texObj
->Sampler
.MagFilter
= GL_NEAREST
;
788 texFormat
= ctx
->Driver
.ChooseTextureFormat(ctx
, target
,
792 /* need a loop here just for cube maps */
793 for (face
= 0; face
< numFaces
; face
++) {
796 if (target
== GL_TEXTURE_CUBE_MAP
)
797 faceTarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ face
;
801 /* initialize level[0] texture image */
802 texImage
= _mesa_get_tex_image(ctx
, texObj
, faceTarget
, 0);
804 _mesa_init_teximage_fields(ctx
, texImage
,
806 (dims
> 1) ? height
: 1,
807 (dims
> 2) ? depth
: 1,
811 ctx
->Driver
.TexImage(ctx
, dims
, texImage
,
812 GL_RGBA
, GL_UNSIGNED_BYTE
, texel
,
813 &ctx
->DefaultPacking
);
816 _mesa_test_texobj_completeness(ctx
, texObj
);
817 assert(texObj
->_BaseComplete
);
818 assert(texObj
->_MipmapComplete
);
820 ctx
->Shared
->FallbackTex
[tex
] = texObj
;
822 return ctx
->Shared
->FallbackTex
[tex
];
827 * Compute the size of the given texture object, in bytes.
830 texture_size(const struct gl_texture_object
*texObj
)
832 const GLuint numFaces
= _mesa_num_tex_faces(texObj
->Target
);
833 GLuint face
, level
, size
= 0;
835 for (face
= 0; face
< numFaces
; face
++) {
836 for (level
= 0; level
< MAX_TEXTURE_LEVELS
; level
++) {
837 const struct gl_texture_image
*img
= texObj
->Image
[face
][level
];
839 GLuint sz
= _mesa_format_image_size(img
->TexFormat
, img
->Width
,
840 img
->Height
, img
->Depth
);
851 * Callback called from _mesa_HashWalk()
854 count_tex_size(GLuint key
, void *data
, void *userData
)
856 const struct gl_texture_object
*texObj
=
857 (const struct gl_texture_object
*) data
;
858 GLuint
*total
= (GLuint
*) userData
;
860 *total
= *total
+ texture_size(texObj
);
865 * Compute total size (in bytes) of all textures for the given context.
866 * For debugging purposes.
869 _mesa_total_texture_memory(struct gl_context
*ctx
)
871 GLuint tgt
, total
= 0;
873 _mesa_HashWalk(ctx
->Shared
->TexObjects
, count_tex_size
, &total
);
875 /* plus, the default texture objects */
876 for (tgt
= 0; tgt
< NUM_TEXTURE_TARGETS
; tgt
++) {
877 total
+= texture_size(ctx
->Shared
->DefaultTex
[tgt
]);
883 static struct gl_texture_object
*
884 invalidate_tex_image_error_check(struct gl_context
*ctx
, GLuint texture
,
885 GLint level
, const char *name
)
887 /* The GL_ARB_invalidate_subdata spec says:
889 * "If <texture> is zero or is not the name of a texture, the error
890 * INVALID_VALUE is generated."
892 * This performs the error check in a different order than listed in the
893 * spec. We have to get the texture object before we can validate the
894 * other parameters against values in the texture object.
896 struct gl_texture_object
*const t
= _mesa_lookup_texture(ctx
, texture
);
897 if (texture
== 0 || t
== NULL
) {
898 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(texture)", name
);
902 /* The GL_ARB_invalidate_subdata spec says:
904 * "If <level> is less than zero or greater than the base 2 logarithm
905 * of the maximum texture width, height, or depth, the error
906 * INVALID_VALUE is generated."
908 if (level
< 0 || level
> t
->MaxLevel
) {
909 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level)", name
);
913 /* The GL_ARB_invalidate_subdata spec says:
915 * "If the target of <texture> is TEXTURE_RECTANGLE, TEXTURE_BUFFER,
916 * TEXTURE_2D_MULTISAMPLE, or TEXTURE_2D_MULTISAMPLE_ARRAY, and <level>
917 * is not zero, the error INVALID_VALUE is generated."
921 case GL_TEXTURE_RECTANGLE
:
922 case GL_TEXTURE_BUFFER
:
923 case GL_TEXTURE_2D_MULTISAMPLE
:
924 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
925 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level)", name
);
939 /***********************************************************************/
940 /** \name API functions */
945 * Generate texture names.
947 * \param n number of texture names to be generated.
948 * \param textures an array in which will hold the generated texture names.
950 * \sa glGenTextures().
952 * Calls _mesa_HashFindFreeKeyBlock() to find a block of free texture
953 * IDs which are stored in \p textures. Corresponding empty texture
954 * objects are also generated.
957 _mesa_GenTextures( GLsizei n
, GLuint
*textures
)
959 GET_CURRENT_CONTEXT(ctx
);
964 _mesa_error( ctx
, GL_INVALID_VALUE
, "glGenTextures" );
972 * This must be atomic (generation and allocation of texture IDs)
974 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
976 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->TexObjects
, n
);
978 /* Allocate new, empty texture objects */
979 for (i
= 0; i
< n
; i
++) {
980 struct gl_texture_object
*texObj
;
981 GLuint name
= first
+ i
;
983 texObj
= ctx
->Driver
.NewTextureObject(ctx
, name
, target
);
985 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
986 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glGenTextures");
990 /* insert into hash table */
991 _mesa_HashInsert(ctx
->Shared
->TexObjects
, texObj
->Name
, texObj
);
996 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1001 * Check if the given texture object is bound to the current draw or
1002 * read framebuffer. If so, Unbind it.
1005 unbind_texobj_from_fbo(struct gl_context
*ctx
,
1006 struct gl_texture_object
*texObj
)
1008 const GLuint n
= (ctx
->DrawBuffer
== ctx
->ReadBuffer
) ? 1 : 2;
1011 for (i
= 0; i
< n
; i
++) {
1012 struct gl_framebuffer
*fb
= (i
== 0) ? ctx
->DrawBuffer
: ctx
->ReadBuffer
;
1013 if (_mesa_is_user_fbo(fb
)) {
1015 for (j
= 0; j
< BUFFER_COUNT
; j
++) {
1016 if (fb
->Attachment
[j
].Type
== GL_TEXTURE
&&
1017 fb
->Attachment
[j
].Texture
== texObj
) {
1018 /* Vertices are already flushed by _mesa_DeleteTextures */
1019 ctx
->NewState
|= _NEW_BUFFERS
;
1020 _mesa_remove_attachment(ctx
, fb
->Attachment
+ j
);
1029 * Check if the given texture object is bound to any texture image units and
1030 * unbind it if so (revert to default textures).
1033 unbind_texobj_from_texunits(struct gl_context
*ctx
,
1034 struct gl_texture_object
*texObj
)
1038 for (u
= 0; u
< Elements(ctx
->Texture
.Unit
); u
++) {
1039 struct gl_texture_unit
*unit
= &ctx
->Texture
.Unit
[u
];
1040 for (tex
= 0; tex
< NUM_TEXTURE_TARGETS
; tex
++) {
1041 if (texObj
== unit
->CurrentTex
[tex
]) {
1042 _mesa_reference_texobj(&unit
->CurrentTex
[tex
],
1043 ctx
->Shared
->DefaultTex
[tex
]);
1044 ASSERT(unit
->CurrentTex
[tex
]);
1053 * Delete named textures.
1055 * \param n number of textures to be deleted.
1056 * \param textures array of texture IDs to be deleted.
1058 * \sa glDeleteTextures().
1060 * If we're about to delete a texture that's currently bound to any
1061 * texture unit, unbind the texture first. Decrement the reference
1062 * count on the texture object and delete it if it's zero.
1063 * Recall that texture objects can be shared among several rendering
1067 _mesa_DeleteTextures( GLsizei n
, const GLuint
*textures
)
1069 GET_CURRENT_CONTEXT(ctx
);
1072 FLUSH_VERTICES(ctx
, 0); /* too complex */
1077 for (i
= 0; i
< n
; i
++) {
1078 if (textures
[i
] > 0) {
1079 struct gl_texture_object
*delObj
1080 = _mesa_lookup_texture(ctx
, textures
[i
]);
1083 _mesa_lock_texture(ctx
, delObj
);
1085 /* Check if texture is bound to any framebuffer objects.
1087 * See section 4.4.2.3 of GL_EXT_framebuffer_object.
1089 unbind_texobj_from_fbo(ctx
, delObj
);
1091 /* Check if this texture is currently bound to any texture units.
1094 unbind_texobj_from_texunits(ctx
, delObj
);
1096 _mesa_unlock_texture(ctx
, delObj
);
1098 ctx
->NewState
|= _NEW_TEXTURE
;
1100 /* The texture _name_ is now free for re-use.
1101 * Remove it from the hash table now.
1103 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1104 _mesa_HashRemove(ctx
->Shared
->TexObjects
, delObj
->Name
);
1105 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1107 /* Unreference the texobj. If refcount hits zero, the texture
1110 _mesa_reference_texobj(&delObj
, NULL
);
1118 * Convert a GL texture target enum such as GL_TEXTURE_2D or GL_TEXTURE_3D
1119 * into the corresponding Mesa texture target index.
1120 * Note that proxy targets are not valid here.
1121 * \return TEXTURE_x_INDEX or -1 if target is invalid
1124 target_enum_to_index(struct gl_context
*ctx
, GLenum target
)
1128 return _mesa_is_desktop_gl(ctx
) ? TEXTURE_1D_INDEX
: -1;
1130 return TEXTURE_2D_INDEX
;
1132 return TEXTURE_3D_INDEX
;
1133 case GL_TEXTURE_CUBE_MAP_ARB
:
1134 return ctx
->Extensions
.ARB_texture_cube_map
1135 ? TEXTURE_CUBE_INDEX
: -1;
1136 case GL_TEXTURE_RECTANGLE_NV
:
1137 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.NV_texture_rectangle
1138 ? TEXTURE_RECT_INDEX
: -1;
1139 case GL_TEXTURE_1D_ARRAY_EXT
:
1140 return _mesa_is_desktop_gl(ctx
)
1141 && (ctx
->Extensions
.EXT_texture_array
1142 || ctx
->Extensions
.MESA_texture_array
)
1143 ? TEXTURE_1D_ARRAY_INDEX
: -1;
1144 case GL_TEXTURE_2D_ARRAY_EXT
:
1145 return (_mesa_is_desktop_gl(ctx
)
1146 && (ctx
->Extensions
.EXT_texture_array
1147 || ctx
->Extensions
.MESA_texture_array
))
1148 || _mesa_is_gles3(ctx
)
1149 ? TEXTURE_2D_ARRAY_INDEX
: -1;
1150 case GL_TEXTURE_BUFFER_ARB
:
1151 return ctx
->API
== API_OPENGL_CORE
&&
1152 ctx
->Extensions
.ARB_texture_buffer_object
?
1153 TEXTURE_BUFFER_INDEX
: -1;
1154 case GL_TEXTURE_EXTERNAL_OES
:
1155 return _mesa_is_gles(ctx
) && ctx
->Extensions
.OES_EGL_image_external
1156 ? TEXTURE_EXTERNAL_INDEX
: -1;
1157 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1158 return TEXTURE_CUBE_ARRAY_INDEX
;
1166 * Bind a named texture to a texturing target.
1168 * \param target texture target.
1169 * \param texName texture name.
1171 * \sa glBindTexture().
1173 * Determines the old texture object bound and returns immediately if rebinding
1174 * the same texture. Get the current texture which is either a default texture
1175 * if name is null, a named texture from the hash, or a new texture if the
1176 * given texture name is new. Increments its reference count, binds it, and
1177 * calls dd_function_table::BindTexture. Decrements the old texture reference
1178 * count and deletes it if it reaches zero.
1181 _mesa_BindTexture( GLenum target
, GLuint texName
)
1183 GET_CURRENT_CONTEXT(ctx
);
1184 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
1185 struct gl_texture_object
*newTexObj
= NULL
;
1188 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1189 _mesa_debug(ctx
, "glBindTexture %s %d\n",
1190 _mesa_lookup_enum_by_nr(target
), (GLint
) texName
);
1192 targetIndex
= target_enum_to_index(ctx
, target
);
1193 if (targetIndex
< 0) {
1194 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindTexture(target)");
1197 assert(targetIndex
< NUM_TEXTURE_TARGETS
);
1200 * Get pointer to new texture object (newTexObj)
1203 /* Use a default texture object */
1204 newTexObj
= ctx
->Shared
->DefaultTex
[targetIndex
];
1207 /* non-default texture object */
1208 newTexObj
= _mesa_lookup_texture(ctx
, texName
);
1210 /* error checking */
1211 if (newTexObj
->Target
!= 0 && newTexObj
->Target
!= target
) {
1212 /* the named texture object's target doesn't match the given target */
1213 _mesa_error( ctx
, GL_INVALID_OPERATION
,
1214 "glBindTexture(target mismatch)" );
1217 if (newTexObj
->Target
== 0) {
1218 finish_texture_init(ctx
, target
, newTexObj
);
1222 if (ctx
->API
== API_OPENGL_CORE
) {
1223 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindTexture(non-gen name)");
1227 /* if this is a new texture id, allocate a texture object now */
1228 newTexObj
= ctx
->Driver
.NewTextureObject(ctx
, texName
, target
);
1230 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindTexture");
1234 /* and insert it into hash table */
1235 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1236 _mesa_HashInsert(ctx
->Shared
->TexObjects
, texName
, newTexObj
);
1237 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1239 newTexObj
->Target
= target
;
1242 assert(valid_texture_object(newTexObj
));
1244 /* Check if this texture is only used by this context and is already bound.
1245 * If so, just return.
1248 GLboolean early_out
;
1249 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1250 early_out
= ((ctx
->Shared
->RefCount
== 1)
1251 && (newTexObj
== texUnit
->CurrentTex
[targetIndex
]));
1252 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1258 /* flush before changing binding */
1259 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1261 /* Do the actual binding. The refcount on the previously bound
1262 * texture object will be decremented. It'll be deleted if the
1265 _mesa_reference_texobj(&texUnit
->CurrentTex
[targetIndex
], newTexObj
);
1266 ASSERT(texUnit
->CurrentTex
[targetIndex
]);
1268 /* Pass BindTexture call to device driver */
1269 if (ctx
->Driver
.BindTexture
)
1270 ctx
->Driver
.BindTexture(ctx
, target
, newTexObj
);
1275 * Set texture priorities.
1277 * \param n number of textures.
1278 * \param texName texture names.
1279 * \param priorities corresponding texture priorities.
1281 * \sa glPrioritizeTextures().
1283 * Looks up each texture in the hash, clamps the corresponding priority between
1284 * 0.0 and 1.0, and calls dd_function_table::PrioritizeTexture.
1287 _mesa_PrioritizeTextures( GLsizei n
, const GLuint
*texName
,
1288 const GLclampf
*priorities
)
1290 GET_CURRENT_CONTEXT(ctx
);
1293 FLUSH_VERTICES(ctx
, 0);
1296 _mesa_error( ctx
, GL_INVALID_VALUE
, "glPrioritizeTextures" );
1303 for (i
= 0; i
< n
; i
++) {
1304 if (texName
[i
] > 0) {
1305 struct gl_texture_object
*t
= _mesa_lookup_texture(ctx
, texName
[i
]);
1307 t
->Priority
= CLAMP( priorities
[i
], 0.0F
, 1.0F
);
1312 ctx
->NewState
|= _NEW_TEXTURE
;
1318 * See if textures are loaded in texture memory.
1320 * \param n number of textures to query.
1321 * \param texName array with the texture names.
1322 * \param residences array which will hold the residence status.
1324 * \return GL_TRUE if all textures are resident and \p residences is left unchanged,
1326 * Note: we assume all textures are always resident
1328 GLboolean GLAPIENTRY
1329 _mesa_AreTexturesResident(GLsizei n
, const GLuint
*texName
,
1330 GLboolean
*residences
)
1332 GET_CURRENT_CONTEXT(ctx
);
1333 GLboolean allResident
= GL_TRUE
;
1335 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1338 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident(n)");
1342 if (!texName
|| !residences
)
1345 /* We only do error checking on the texture names */
1346 for (i
= 0; i
< n
; i
++) {
1347 struct gl_texture_object
*t
;
1348 if (texName
[i
] == 0) {
1349 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident");
1352 t
= _mesa_lookup_texture(ctx
, texName
[i
]);
1354 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident");
1364 * See if a name corresponds to a texture.
1366 * \param texture texture name.
1368 * \return GL_TRUE if texture name corresponds to a texture, or GL_FALSE
1371 * \sa glIsTexture().
1373 * Calls _mesa_HashLookup().
1375 GLboolean GLAPIENTRY
1376 _mesa_IsTexture( GLuint texture
)
1378 struct gl_texture_object
*t
;
1379 GET_CURRENT_CONTEXT(ctx
);
1380 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1385 t
= _mesa_lookup_texture(ctx
, texture
);
1387 /* IsTexture is true only after object has been bound once. */
1388 return t
&& t
->Target
;
1393 * Simplest implementation of texture locking: grab the shared tex
1394 * mutex. Examine the shared context state timestamp and if there has
1395 * been a change, set the appropriate bits in ctx->NewState.
1397 * This is used to deal with synchronizing things when a texture object
1398 * is used/modified by different contexts (or threads) which are sharing
1401 * See also _mesa_lock/unlock_texture() in teximage.h
1404 _mesa_lock_context_textures( struct gl_context
*ctx
)
1406 _glthread_LOCK_MUTEX(ctx
->Shared
->TexMutex
);
1408 if (ctx
->Shared
->TextureStateStamp
!= ctx
->TextureStateTimestamp
) {
1409 ctx
->NewState
|= _NEW_TEXTURE
;
1410 ctx
->TextureStateTimestamp
= ctx
->Shared
->TextureStateStamp
;
1416 _mesa_unlock_context_textures( struct gl_context
*ctx
)
1418 assert(ctx
->Shared
->TextureStateStamp
== ctx
->TextureStateTimestamp
);
1419 _glthread_UNLOCK_MUTEX(ctx
->Shared
->TexMutex
);
1423 _mesa_InvalidateTexSubImage(GLuint texture
, GLint level
, GLint xoffset
,
1424 GLint yoffset
, GLint zoffset
, GLsizei width
,
1425 GLsizei height
, GLsizei depth
)
1427 struct gl_texture_object
*t
;
1428 struct gl_texture_image
*image
;
1429 GET_CURRENT_CONTEXT(ctx
);
1431 t
= invalidate_tex_image_error_check(ctx
, texture
, level
,
1432 "glInvalidateTexSubImage");
1434 /* The GL_ARB_invalidate_subdata spec says:
1436 * "...the specified subregion must be between -<b> and <dim>+<b> where
1437 * <dim> is the size of the dimension of the texture image, and <b> is
1438 * the size of the border of that texture image, otherwise
1439 * INVALID_VALUE is generated (border is not applied to dimensions that
1440 * don't exist in a given texture target)."
1442 image
= t
->Image
[0][level
];
1451 /* The GL_ARB_invalidate_subdata spec says:
1453 * "For texture targets that don't have certain dimensions, this
1454 * command treats those dimensions as having a size of 1. For
1455 * example, to invalidate a portion of a two-dimensional texture,
1456 * the application would use <zoffset> equal to zero and <depth>
1459 switch (t
->Target
) {
1460 case GL_TEXTURE_BUFFER
:
1469 xBorder
= image
->Border
;
1472 imageWidth
= image
->Width
;
1476 case GL_TEXTURE_1D_ARRAY
:
1477 xBorder
= image
->Border
;
1480 imageWidth
= image
->Width
;
1481 imageHeight
= image
->Height
;
1485 case GL_TEXTURE_CUBE_MAP
:
1486 case GL_TEXTURE_RECTANGLE
:
1487 case GL_TEXTURE_2D_MULTISAMPLE
:
1488 xBorder
= image
->Border
;
1489 yBorder
= image
->Border
;
1491 imageWidth
= image
->Width
;
1492 imageHeight
= image
->Height
;
1495 case GL_TEXTURE_2D_ARRAY
:
1496 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1497 xBorder
= image
->Border
;
1498 yBorder
= image
->Border
;
1500 imageWidth
= image
->Width
;
1501 imageHeight
= image
->Height
;
1502 imageDepth
= image
->Depth
;
1505 xBorder
= image
->Border
;
1506 yBorder
= image
->Border
;
1507 zBorder
= image
->Border
;
1508 imageWidth
= image
->Width
;
1509 imageHeight
= image
->Height
;
1510 imageDepth
= image
->Depth
;
1513 assert(!"Should not get here.");
1523 if (xoffset
< -xBorder
) {
1524 _mesa_error(ctx
, GL_INVALID_VALUE
, "glInvalidateSubTexImage(xoffset)");
1528 if (xoffset
+ width
> imageWidth
+ xBorder
) {
1529 _mesa_error(ctx
, GL_INVALID_VALUE
,
1530 "glInvalidateSubTexImage(xoffset+width)");
1534 if (yoffset
< -yBorder
) {
1535 _mesa_error(ctx
, GL_INVALID_VALUE
, "glInvalidateSubTexImage(yoffset)");
1539 if (yoffset
+ height
> imageHeight
+ yBorder
) {
1540 _mesa_error(ctx
, GL_INVALID_VALUE
,
1541 "glInvalidateSubTexImage(yoffset+height)");
1545 if (zoffset
< -zBorder
) {
1546 _mesa_error(ctx
, GL_INVALID_VALUE
,
1547 "glInvalidateSubTexImage(zoffset)");
1551 if (zoffset
+ depth
> imageDepth
+ zBorder
) {
1552 _mesa_error(ctx
, GL_INVALID_VALUE
,
1553 "glInvalidateSubTexImage(zoffset+depth)");
1558 /* We don't actually do anything for this yet. Just return after
1559 * validating the parameters and generating the required errors.
1565 _mesa_InvalidateTexImage(GLuint texture
, GLint level
)
1567 GET_CURRENT_CONTEXT(ctx
);
1569 invalidate_tex_image_error_check(ctx
, texture
, level
,
1570 "glInvalidateTexImage");
1572 /* We don't actually do anything for this yet. Just return after
1573 * validating the parameters and generating the required errors.