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.
32 #include "bufferobj.h"
40 #include "shaderimage.h"
45 #include "program/prog_instruction.h"
46 #include "texturebindless.h"
50 /**********************************************************************/
51 /** \name Internal functions */
55 * This function checks for all valid combinations of Min and Mag filters for
56 * Float types, when extensions like OES_texture_float and
57 * OES_texture_float_linear are supported. OES_texture_float mentions support
58 * for NEAREST, NEAREST_MIPMAP_NEAREST magnification and minification filters.
59 * Mag filters like LINEAR and min filters like NEAREST_MIPMAP_LINEAR,
60 * LINEAR_MIPMAP_NEAREST and LINEAR_MIPMAP_LINEAR are only valid in case
61 * OES_texture_float_linear is supported.
63 * Returns true in case the filter is valid for given Float type else false.
66 valid_filter_for_float(const struct gl_context
*ctx
,
67 const struct gl_texture_object
*obj
)
69 switch (obj
->Sampler
.MagFilter
) {
71 if (obj
->_IsHalfFloat
&& !ctx
->Extensions
.OES_texture_half_float_linear
) {
73 } else if (obj
->_IsFloat
&& !ctx
->Extensions
.OES_texture_float_linear
) {
77 case GL_NEAREST_MIPMAP_NEAREST
:
80 unreachable("Invalid mag filter");
83 switch (obj
->Sampler
.MinFilter
) {
85 case GL_NEAREST_MIPMAP_LINEAR
:
86 case GL_LINEAR_MIPMAP_NEAREST
:
87 case GL_LINEAR_MIPMAP_LINEAR
:
88 if (obj
->_IsHalfFloat
&& !ctx
->Extensions
.OES_texture_half_float_linear
) {
90 } else if (obj
->_IsFloat
&& !ctx
->Extensions
.OES_texture_float_linear
) {
94 case GL_NEAREST_MIPMAP_NEAREST
:
97 unreachable("Invalid min filter");
104 * Return the gl_texture_object for a given ID.
106 struct gl_texture_object
*
107 _mesa_lookup_texture(struct gl_context
*ctx
, GLuint id
)
109 return (struct gl_texture_object
*)
110 _mesa_HashLookup(ctx
->Shared
->TexObjects
, id
);
114 * Wrapper around _mesa_lookup_texture that throws GL_INVALID_OPERATION if id
115 * is not in the hash table. After calling _mesa_error, it returns NULL.
117 struct gl_texture_object
*
118 _mesa_lookup_texture_err(struct gl_context
*ctx
, GLuint id
, const char* func
)
120 struct gl_texture_object
*texObj
= NULL
;
123 texObj
= _mesa_lookup_texture(ctx
, id
); /* Returns NULL if not found. */
126 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture)", func
);
132 struct gl_texture_object
*
133 _mesa_lookup_texture_locked(struct gl_context
*ctx
, GLuint id
)
135 return (struct gl_texture_object
*)
136 _mesa_HashLookupLocked(ctx
->Shared
->TexObjects
, id
);
140 * Return a pointer to the current texture object for the given target
141 * on the current texture unit.
142 * Note: all <target> error checking should have been done by this point.
144 struct gl_texture_object
*
145 _mesa_get_current_tex_object(struct gl_context
*ctx
, GLenum target
)
147 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
148 const GLboolean arrayTex
= ctx
->Extensions
.EXT_texture_array
;
152 return texUnit
->CurrentTex
[TEXTURE_1D_INDEX
];
153 case GL_PROXY_TEXTURE_1D
:
154 return ctx
->Texture
.ProxyTex
[TEXTURE_1D_INDEX
];
156 return texUnit
->CurrentTex
[TEXTURE_2D_INDEX
];
157 case GL_PROXY_TEXTURE_2D
:
158 return ctx
->Texture
.ProxyTex
[TEXTURE_2D_INDEX
];
160 return texUnit
->CurrentTex
[TEXTURE_3D_INDEX
];
161 case GL_PROXY_TEXTURE_3D
:
162 return ctx
->Texture
.ProxyTex
[TEXTURE_3D_INDEX
];
163 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
164 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
165 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
166 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
167 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
168 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
169 case GL_TEXTURE_CUBE_MAP
:
170 return ctx
->Extensions
.ARB_texture_cube_map
171 ? texUnit
->CurrentTex
[TEXTURE_CUBE_INDEX
] : NULL
;
172 case GL_PROXY_TEXTURE_CUBE_MAP
:
173 return ctx
->Extensions
.ARB_texture_cube_map
174 ? ctx
->Texture
.ProxyTex
[TEXTURE_CUBE_INDEX
] : NULL
;
175 case GL_TEXTURE_CUBE_MAP_ARRAY
:
176 return _mesa_has_texture_cube_map_array(ctx
)
177 ? texUnit
->CurrentTex
[TEXTURE_CUBE_ARRAY_INDEX
] : NULL
;
178 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
179 return _mesa_has_texture_cube_map_array(ctx
)
180 ? ctx
->Texture
.ProxyTex
[TEXTURE_CUBE_ARRAY_INDEX
] : NULL
;
181 case GL_TEXTURE_RECTANGLE_NV
:
182 return ctx
->Extensions
.NV_texture_rectangle
183 ? texUnit
->CurrentTex
[TEXTURE_RECT_INDEX
] : NULL
;
184 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
185 return ctx
->Extensions
.NV_texture_rectangle
186 ? ctx
->Texture
.ProxyTex
[TEXTURE_RECT_INDEX
] : NULL
;
187 case GL_TEXTURE_1D_ARRAY_EXT
:
188 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
189 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
190 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
191 case GL_TEXTURE_2D_ARRAY_EXT
:
192 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
193 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
194 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
195 case GL_TEXTURE_BUFFER
:
196 return (_mesa_has_ARB_texture_buffer_object(ctx
) ||
197 _mesa_has_OES_texture_buffer(ctx
)) ?
198 texUnit
->CurrentTex
[TEXTURE_BUFFER_INDEX
] : NULL
;
199 case GL_TEXTURE_EXTERNAL_OES
:
200 return _mesa_is_gles(ctx
) && ctx
->Extensions
.OES_EGL_image_external
201 ? texUnit
->CurrentTex
[TEXTURE_EXTERNAL_INDEX
] : NULL
;
202 case GL_TEXTURE_2D_MULTISAMPLE
:
203 return ctx
->Extensions
.ARB_texture_multisample
204 ? texUnit
->CurrentTex
[TEXTURE_2D_MULTISAMPLE_INDEX
] : NULL
;
205 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
206 return ctx
->Extensions
.ARB_texture_multisample
207 ? ctx
->Texture
.ProxyTex
[TEXTURE_2D_MULTISAMPLE_INDEX
] : NULL
;
208 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
209 return ctx
->Extensions
.ARB_texture_multisample
210 ? texUnit
->CurrentTex
[TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
] : NULL
;
211 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
212 return ctx
->Extensions
.ARB_texture_multisample
213 ? ctx
->Texture
.ProxyTex
[TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
] : NULL
;
215 _mesa_problem(NULL
, "bad target in _mesa_get_current_tex_object()");
222 * Get the texture object for given target and texunit
223 * Proxy targets are accepted only allowProxyTarget is true.
224 * Return NULL if any error (and record the error).
226 struct gl_texture_object
*
227 _mesa_get_texobj_by_target_and_texunit(struct gl_context
*ctx
, GLenum target
,
228 GLuint texunit
, bool allowProxyTarget
,
231 struct gl_texture_unit
*texUnit
;
234 if (_mesa_is_proxy_texture(target
) && allowProxyTarget
) {
235 return _mesa_get_current_tex_object(ctx
, target
);
238 if (texunit
>= ctx
->Const
.MaxCombinedTextureImageUnits
) {
239 _mesa_error(ctx
, GL_INVALID_OPERATION
,
240 "%s(texunit=%d)", caller
, texunit
);
244 texUnit
= _mesa_get_tex_unit(ctx
, texunit
);
246 targetIndex
= _mesa_tex_target_to_index(ctx
, target
);
247 if (targetIndex
< 0 || targetIndex
== TEXTURE_BUFFER_INDEX
) {
248 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", caller
);
251 assert(targetIndex
< NUM_TEXTURE_TARGETS
);
253 return texUnit
->CurrentTex
[targetIndex
];
258 * Allocate and initialize a new texture object. But don't put it into the
259 * texture object hash table.
261 * Called via ctx->Driver.NewTextureObject, unless overridden by a device
264 * \param shared the shared GL state structure to contain the texture object
265 * \param name integer name for the texture object
266 * \param target either GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D,
267 * GL_TEXTURE_CUBE_MAP or GL_TEXTURE_RECTANGLE_NV. zero is ok for the sake
270 * \return pointer to new texture object.
272 struct gl_texture_object
*
273 _mesa_new_texture_object(struct gl_context
*ctx
, GLuint name
, GLenum target
)
275 struct gl_texture_object
*obj
;
277 obj
= MALLOC_STRUCT(gl_texture_object
);
281 _mesa_initialize_texture_object(ctx
, obj
, name
, target
);
287 * Initialize a new texture object to default values.
288 * \param obj the texture object
289 * \param name the texture name
290 * \param target the texture target
293 _mesa_initialize_texture_object( struct gl_context
*ctx
,
294 struct gl_texture_object
*obj
,
295 GLuint name
, GLenum target
)
297 assert(target
== 0 ||
298 target
== GL_TEXTURE_1D
||
299 target
== GL_TEXTURE_2D
||
300 target
== GL_TEXTURE_3D
||
301 target
== GL_TEXTURE_CUBE_MAP
||
302 target
== GL_TEXTURE_RECTANGLE_NV
||
303 target
== GL_TEXTURE_1D_ARRAY_EXT
||
304 target
== GL_TEXTURE_2D_ARRAY_EXT
||
305 target
== GL_TEXTURE_EXTERNAL_OES
||
306 target
== GL_TEXTURE_CUBE_MAP_ARRAY
||
307 target
== GL_TEXTURE_BUFFER
||
308 target
== GL_TEXTURE_2D_MULTISAMPLE
||
309 target
== GL_TEXTURE_2D_MULTISAMPLE_ARRAY
);
311 memset(obj
, 0, sizeof(*obj
));
312 /* init the non-zero fields */
313 simple_mtx_init(&obj
->Mutex
, mtx_plain
);
316 obj
->Target
= target
;
318 obj
->TargetIndex
= _mesa_tex_target_to_index(ctx
, target
);
321 obj
->TargetIndex
= NUM_TEXTURE_TARGETS
; /* invalid/error value */
323 obj
->Priority
= 1.0F
;
325 obj
->MaxLevel
= 1000;
327 /* must be one; no support for (YUV) planes in separate buffers */
328 obj
->RequiredTextureImageUnits
= 1;
331 if (target
== GL_TEXTURE_RECTANGLE_NV
||
332 target
== GL_TEXTURE_EXTERNAL_OES
) {
333 obj
->Sampler
.WrapS
= GL_CLAMP_TO_EDGE
;
334 obj
->Sampler
.WrapT
= GL_CLAMP_TO_EDGE
;
335 obj
->Sampler
.WrapR
= GL_CLAMP_TO_EDGE
;
336 obj
->Sampler
.MinFilter
= GL_LINEAR
;
339 obj
->Sampler
.WrapS
= GL_REPEAT
;
340 obj
->Sampler
.WrapT
= GL_REPEAT
;
341 obj
->Sampler
.WrapR
= GL_REPEAT
;
342 obj
->Sampler
.MinFilter
= GL_NEAREST_MIPMAP_LINEAR
;
344 obj
->Sampler
.MagFilter
= GL_LINEAR
;
345 obj
->Sampler
.MinLod
= -1000.0;
346 obj
->Sampler
.MaxLod
= 1000.0;
347 obj
->Sampler
.LodBias
= 0.0;
348 obj
->Sampler
.MaxAnisotropy
= 1.0;
349 obj
->Sampler
.CompareMode
= GL_NONE
; /* ARB_shadow */
350 obj
->Sampler
.CompareFunc
= GL_LEQUAL
; /* ARB_shadow */
351 obj
->DepthMode
= ctx
->API
== API_OPENGL_CORE
? GL_RED
: GL_LUMINANCE
;
352 obj
->StencilSampling
= false;
353 obj
->Sampler
.CubeMapSeamless
= GL_FALSE
;
354 obj
->Sampler
.HandleAllocated
= GL_FALSE
;
355 obj
->Swizzle
[0] = GL_RED
;
356 obj
->Swizzle
[1] = GL_GREEN
;
357 obj
->Swizzle
[2] = GL_BLUE
;
358 obj
->Swizzle
[3] = GL_ALPHA
;
359 obj
->_Swizzle
= SWIZZLE_NOOP
;
360 obj
->Sampler
.sRGBDecode
= GL_DECODE_EXT
;
361 obj
->BufferObjectFormat
= GL_R8
;
362 obj
->_BufferObjectFormat
= MESA_FORMAT_R_UNORM8
;
363 obj
->ImageFormatCompatibilityType
= GL_IMAGE_FORMAT_COMPATIBILITY_BY_SIZE
;
365 /* GL_ARB_bindless_texture */
366 _mesa_init_texture_handles(obj
);
371 * Some texture initialization can't be finished until we know which
372 * target it's getting bound to (GL_TEXTURE_1D/2D/etc).
375 finish_texture_init(struct gl_context
*ctx
, GLenum target
,
376 struct gl_texture_object
*obj
, int targetIndex
)
378 GLenum filter
= GL_LINEAR
;
379 assert(obj
->Target
== 0);
381 obj
->Target
= target
;
382 obj
->TargetIndex
= targetIndex
;
383 assert(obj
->TargetIndex
< NUM_TEXTURE_TARGETS
);
386 case GL_TEXTURE_2D_MULTISAMPLE
:
387 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
391 case GL_TEXTURE_RECTANGLE_NV
:
392 case GL_TEXTURE_EXTERNAL_OES
:
393 /* have to init wrap and filter state here - kind of klunky */
394 obj
->Sampler
.WrapS
= GL_CLAMP_TO_EDGE
;
395 obj
->Sampler
.WrapT
= GL_CLAMP_TO_EDGE
;
396 obj
->Sampler
.WrapR
= GL_CLAMP_TO_EDGE
;
397 obj
->Sampler
.MinFilter
= filter
;
398 obj
->Sampler
.MagFilter
= filter
;
399 if (ctx
->Driver
.TexParameter
) {
400 /* XXX we probably don't need to make all these calls */
401 ctx
->Driver
.TexParameter(ctx
, obj
, GL_TEXTURE_WRAP_S
);
402 ctx
->Driver
.TexParameter(ctx
, obj
, GL_TEXTURE_WRAP_T
);
403 ctx
->Driver
.TexParameter(ctx
, obj
, GL_TEXTURE_WRAP_R
);
404 ctx
->Driver
.TexParameter(ctx
, obj
, GL_TEXTURE_MIN_FILTER
);
405 ctx
->Driver
.TexParameter(ctx
, obj
, GL_TEXTURE_MAG_FILTER
);
410 /* nothing needs done */
417 * Deallocate a texture object struct. It should have already been
418 * removed from the texture object pool.
419 * Called via ctx->Driver.DeleteTexture() if not overriden by a driver.
421 * \param shared the shared GL state to which the object belongs.
422 * \param texObj the texture object to delete.
425 _mesa_delete_texture_object(struct gl_context
*ctx
,
426 struct gl_texture_object
*texObj
)
430 /* Set Target to an invalid value. With some assertions elsewhere
431 * we can try to detect possible use of deleted textures.
433 texObj
->Target
= 0x99;
435 /* free the texture images */
436 for (face
= 0; face
< 6; face
++) {
437 for (i
= 0; i
< MAX_TEXTURE_LEVELS
; i
++) {
438 if (texObj
->Image
[face
][i
]) {
439 ctx
->Driver
.DeleteTextureImage(ctx
, texObj
->Image
[face
][i
]);
444 /* Delete all texture/image handles. */
445 _mesa_delete_texture_handles(ctx
, texObj
);
447 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, NULL
);
449 /* destroy the mutex -- it may have allocated memory (eg on bsd) */
450 simple_mtx_destroy(&texObj
->Mutex
);
454 /* free this object */
460 * Copy texture object state from one texture object to another.
461 * Use for glPush/PopAttrib.
463 * \param dest destination texture object.
464 * \param src source texture object.
467 _mesa_copy_texture_object( struct gl_texture_object
*dest
,
468 const struct gl_texture_object
*src
)
470 dest
->Target
= src
->Target
;
471 dest
->TargetIndex
= src
->TargetIndex
;
472 dest
->Name
= src
->Name
;
473 dest
->Priority
= src
->Priority
;
474 dest
->Sampler
.BorderColor
.f
[0] = src
->Sampler
.BorderColor
.f
[0];
475 dest
->Sampler
.BorderColor
.f
[1] = src
->Sampler
.BorderColor
.f
[1];
476 dest
->Sampler
.BorderColor
.f
[2] = src
->Sampler
.BorderColor
.f
[2];
477 dest
->Sampler
.BorderColor
.f
[3] = src
->Sampler
.BorderColor
.f
[3];
478 dest
->Sampler
.WrapS
= src
->Sampler
.WrapS
;
479 dest
->Sampler
.WrapT
= src
->Sampler
.WrapT
;
480 dest
->Sampler
.WrapR
= src
->Sampler
.WrapR
;
481 dest
->Sampler
.MinFilter
= src
->Sampler
.MinFilter
;
482 dest
->Sampler
.MagFilter
= src
->Sampler
.MagFilter
;
483 dest
->Sampler
.MinLod
= src
->Sampler
.MinLod
;
484 dest
->Sampler
.MaxLod
= src
->Sampler
.MaxLod
;
485 dest
->Sampler
.LodBias
= src
->Sampler
.LodBias
;
486 dest
->BaseLevel
= src
->BaseLevel
;
487 dest
->MaxLevel
= src
->MaxLevel
;
488 dest
->Sampler
.MaxAnisotropy
= src
->Sampler
.MaxAnisotropy
;
489 dest
->Sampler
.CompareMode
= src
->Sampler
.CompareMode
;
490 dest
->Sampler
.CompareFunc
= src
->Sampler
.CompareFunc
;
491 dest
->Sampler
.CubeMapSeamless
= src
->Sampler
.CubeMapSeamless
;
492 dest
->DepthMode
= src
->DepthMode
;
493 dest
->StencilSampling
= src
->StencilSampling
;
494 dest
->Sampler
.sRGBDecode
= src
->Sampler
.sRGBDecode
;
495 dest
->_MaxLevel
= src
->_MaxLevel
;
496 dest
->_MaxLambda
= src
->_MaxLambda
;
497 dest
->GenerateMipmap
= src
->GenerateMipmap
;
498 dest
->_BaseComplete
= src
->_BaseComplete
;
499 dest
->_MipmapComplete
= src
->_MipmapComplete
;
500 COPY_4V(dest
->Swizzle
, src
->Swizzle
);
501 dest
->_Swizzle
= src
->_Swizzle
;
502 dest
->_IsHalfFloat
= src
->_IsHalfFloat
;
503 dest
->_IsFloat
= src
->_IsFloat
;
505 dest
->RequiredTextureImageUnits
= src
->RequiredTextureImageUnits
;
510 * Free all texture images of the given texture objectm, except for
513 * \param ctx GL context.
514 * \param texObj texture object.
515 * \param retainTexImage a texture image that will \em not be freed.
517 * \sa _mesa_clear_texture_image().
520 _mesa_clear_texture_object(struct gl_context
*ctx
,
521 struct gl_texture_object
*texObj
,
522 struct gl_texture_image
*retainTexImage
)
526 if (texObj
->Target
== 0)
529 for (i
= 0; i
< MAX_FACES
; i
++) {
530 for (j
= 0; j
< MAX_TEXTURE_LEVELS
; j
++) {
531 struct gl_texture_image
*texImage
= texObj
->Image
[i
][j
];
532 if (texImage
&& texImage
!= retainTexImage
)
533 _mesa_clear_texture_image(ctx
, texImage
);
540 * Check if the given texture object is valid by examining its Target field.
541 * For debugging only.
544 valid_texture_object(const struct gl_texture_object
*tex
)
546 switch (tex
->Target
) {
551 case GL_TEXTURE_CUBE_MAP
:
552 case GL_TEXTURE_RECTANGLE_NV
:
553 case GL_TEXTURE_1D_ARRAY_EXT
:
554 case GL_TEXTURE_2D_ARRAY_EXT
:
555 case GL_TEXTURE_BUFFER
:
556 case GL_TEXTURE_EXTERNAL_OES
:
557 case GL_TEXTURE_CUBE_MAP_ARRAY
:
558 case GL_TEXTURE_2D_MULTISAMPLE
:
559 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
562 _mesa_problem(NULL
, "invalid reference to a deleted texture object");
565 _mesa_problem(NULL
, "invalid texture object Target 0x%x, Id = %u",
566 tex
->Target
, tex
->Name
);
573 * Reference (or unreference) a texture object.
574 * If '*ptr', decrement *ptr's refcount (and delete if it becomes zero).
575 * If 'tex' is non-null, increment its refcount.
576 * This is normally only called from the _mesa_reference_texobj() macro
577 * when there's a real pointer change.
580 _mesa_reference_texobj_(struct gl_texture_object
**ptr
,
581 struct gl_texture_object
*tex
)
586 /* Unreference the old texture */
587 GLboolean deleteFlag
= GL_FALSE
;
588 struct gl_texture_object
*oldTex
= *ptr
;
590 assert(valid_texture_object(oldTex
));
591 (void) valid_texture_object
; /* silence warning in release builds */
593 simple_mtx_lock(&oldTex
->Mutex
);
594 assert(oldTex
->RefCount
> 0);
597 deleteFlag
= (oldTex
->RefCount
== 0);
598 simple_mtx_unlock(&oldTex
->Mutex
);
601 /* Passing in the context drastically changes the driver code for
602 * framebuffer deletion.
604 GET_CURRENT_CONTEXT(ctx
);
606 ctx
->Driver
.DeleteTexture(ctx
, oldTex
);
608 _mesa_problem(NULL
, "Unable to delete texture, no context");
616 /* reference new texture */
617 assert(valid_texture_object(tex
));
618 simple_mtx_lock(&tex
->Mutex
);
619 assert(tex
->RefCount
> 0);
623 simple_mtx_unlock(&tex
->Mutex
);
628 enum base_mipmap
{ BASE
, MIPMAP
};
632 * Mark a texture object as incomplete. There are actually three kinds of
634 * 1. "base incomplete": the base level of the texture is invalid so no
635 * texturing is possible.
636 * 2. "mipmap incomplete": a non-base level of the texture is invalid so
637 * mipmap filtering isn't possible, but non-mipmap filtering is.
638 * 3. "texture incompleteness": some combination of texture state and
639 * sampler state renders the texture incomplete.
641 * \param t texture object
642 * \param bm either BASE or MIPMAP to indicate what's incomplete
643 * \param fmt... string describing why it's incomplete (for debugging).
646 incomplete(struct gl_texture_object
*t
, enum base_mipmap bm
,
647 const char *fmt
, ...)
649 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_TEXTURE
) {
654 vsnprintf(s
, sizeof(s
), fmt
, args
);
657 _mesa_debug(NULL
, "Texture Obj %d incomplete because: %s\n", t
->Name
, s
);
661 t
->_BaseComplete
= GL_FALSE
;
662 t
->_MipmapComplete
= GL_FALSE
;
667 * Examine a texture object to determine if it is complete.
669 * The gl_texture_object::Complete flag will be set to GL_TRUE or GL_FALSE
672 * \param ctx GL context.
673 * \param t texture object.
675 * According to the texture target, verifies that each of the mipmaps is
676 * present and has the expected size.
679 _mesa_test_texobj_completeness( const struct gl_context
*ctx
,
680 struct gl_texture_object
*t
)
682 const GLint baseLevel
= t
->BaseLevel
;
683 const struct gl_texture_image
*baseImage
;
686 /* We'll set these to FALSE if tests fail below */
687 t
->_BaseComplete
= GL_TRUE
;
688 t
->_MipmapComplete
= GL_TRUE
;
690 if (t
->Target
== GL_TEXTURE_BUFFER
) {
691 /* Buffer textures are always considered complete. The obvious case where
692 * they would be incomplete (no BO attached) is actually specced to be
693 * undefined rendering results.
698 /* Detect cases where the application set the base level to an invalid
701 if ((baseLevel
< 0) || (baseLevel
>= MAX_TEXTURE_LEVELS
)) {
702 incomplete(t
, BASE
, "base level = %d is invalid", baseLevel
);
706 if (t
->MaxLevel
< baseLevel
) {
707 incomplete(t
, MIPMAP
, "MAX_LEVEL (%d) < BASE_LEVEL (%d)",
708 t
->MaxLevel
, baseLevel
);
712 baseImage
= t
->Image
[0][baseLevel
];
714 /* Always need the base level image */
716 incomplete(t
, BASE
, "Image[baseLevel=%d] == NULL", baseLevel
);
720 /* Check width/height/depth for zero */
721 if (baseImage
->Width
== 0 ||
722 baseImage
->Height
== 0 ||
723 baseImage
->Depth
== 0) {
724 incomplete(t
, BASE
, "texture width or height or depth = 0");
728 /* Check if the texture values are integer */
730 GLenum datatype
= _mesa_get_format_datatype(baseImage
->TexFormat
);
731 t
->_IsIntegerFormat
= datatype
== GL_INT
|| datatype
== GL_UNSIGNED_INT
;
734 /* Check if the texture type is Float or HalfFloatOES and ensure Min and Mag
735 * filters are supported in this case.
737 if (_mesa_is_gles(ctx
) && !valid_filter_for_float(ctx
, t
)) {
738 incomplete(t
, BASE
, "Filter is not supported with Float types.");
742 maxLevels
= _mesa_max_texture_levels(ctx
, t
->Target
);
743 if (maxLevels
== 0) {
744 _mesa_problem(ctx
, "Bad t->Target in _mesa_test_texobj_completeness");
748 assert(maxLevels
> 0);
750 t
->_MaxLevel
= MIN3(t
->MaxLevel
,
751 /* 'p' in the GL spec */
752 (int) (baseLevel
+ baseImage
->MaxNumLevels
- 1),
753 /* 'q' in the GL spec */
757 /* Adjust max level for views: the data store may have more levels than
760 t
->_MaxLevel
= MAX2(MIN2(t
->_MaxLevel
, t
->NumLevels
- 1), 0);
763 /* Compute _MaxLambda = q - p in the spec used during mipmapping */
764 t
->_MaxLambda
= (GLfloat
) (t
->_MaxLevel
- baseLevel
);
767 /* This texture object was created with glTexStorage1/2/3D() so we
768 * know that all the mipmap levels are the right size and all cube
769 * map faces are the same size.
770 * We don't need to do any of the additional checks below.
775 if (t
->Target
== GL_TEXTURE_CUBE_MAP
) {
776 /* Make sure that all six cube map level 0 images are the same size and
778 * Note: we know that the image's width==height (we enforce that
779 * at glTexImage time) so we only need to test the width here.
782 assert(baseImage
->Width2
== baseImage
->Height
);
783 for (face
= 1; face
< 6; face
++) {
784 assert(t
->Image
[face
][baseLevel
] == NULL
||
785 t
->Image
[face
][baseLevel
]->Width2
==
786 t
->Image
[face
][baseLevel
]->Height2
);
787 if (t
->Image
[face
][baseLevel
] == NULL
||
788 t
->Image
[face
][baseLevel
]->Width2
!= baseImage
->Width2
) {
789 incomplete(t
, BASE
, "Cube face missing or mismatched size");
792 if (t
->Image
[face
][baseLevel
]->InternalFormat
!=
793 baseImage
->InternalFormat
) {
794 incomplete(t
, BASE
, "Cube face format mismatch");
797 if (t
->Image
[face
][baseLevel
]->Border
!= baseImage
->Border
) {
798 incomplete(t
, BASE
, "Cube face border size mismatch");
805 * Do mipmap consistency checking.
806 * Note: we don't care about the current texture sampler state here.
807 * To determine texture completeness we'll either look at _BaseComplete
808 * or _MipmapComplete depending on the current minification filter mode.
812 const GLint minLevel
= baseLevel
;
813 const GLint maxLevel
= t
->_MaxLevel
;
814 const GLuint numFaces
= _mesa_num_tex_faces(t
->Target
);
815 GLuint width
, height
, depth
, face
;
817 if (minLevel
> maxLevel
) {
818 incomplete(t
, MIPMAP
, "minLevel > maxLevel");
822 /* Get the base image's dimensions */
823 width
= baseImage
->Width2
;
824 height
= baseImage
->Height2
;
825 depth
= baseImage
->Depth2
;
827 /* Note: this loop will be a no-op for RECT, BUFFER, EXTERNAL,
828 * MULTISAMPLE and MULTISAMPLE_ARRAY textures
830 for (i
= baseLevel
+ 1; i
< maxLevels
; i
++) {
831 /* Compute the expected size of image at level[i] */
835 if (height
> 1 && t
->Target
!= GL_TEXTURE_1D_ARRAY
) {
838 if (depth
> 1 && t
->Target
!= GL_TEXTURE_2D_ARRAY
839 && t
->Target
!= GL_TEXTURE_CUBE_MAP_ARRAY
) {
843 /* loop over cube faces (or single face otherwise) */
844 for (face
= 0; face
< numFaces
; face
++) {
845 if (i
>= minLevel
&& i
<= maxLevel
) {
846 const struct gl_texture_image
*img
= t
->Image
[face
][i
];
849 incomplete(t
, MIPMAP
, "TexImage[%d] is missing", i
);
852 if (img
->InternalFormat
!= baseImage
->InternalFormat
) {
853 incomplete(t
, MIPMAP
, "Format[i] != Format[baseLevel]");
856 if (img
->Border
!= baseImage
->Border
) {
857 incomplete(t
, MIPMAP
, "Border[i] != Border[baseLevel]");
860 if (img
->Width2
!= width
) {
861 incomplete(t
, MIPMAP
, "TexImage[%d] bad width %u", i
,
865 if (img
->Height2
!= height
) {
866 incomplete(t
, MIPMAP
, "TexImage[%d] bad height %u", i
,
870 if (img
->Depth2
!= depth
) {
871 incomplete(t
, MIPMAP
, "TexImage[%d] bad depth %u", i
,
878 if (width
== 1 && height
== 1 && depth
== 1) {
879 return; /* found smallest needed mipmap, all done! */
887 _mesa_cube_level_complete(const struct gl_texture_object
*texObj
,
890 const struct gl_texture_image
*img0
, *img
;
893 if (texObj
->Target
!= GL_TEXTURE_CUBE_MAP
)
896 if ((level
< 0) || (level
>= MAX_TEXTURE_LEVELS
))
899 /* check first face */
900 img0
= texObj
->Image
[0][level
];
903 img0
->Width
!= img0
->Height
)
906 /* check remaining faces vs. first face */
907 for (face
= 1; face
< 6; face
++) {
908 img
= texObj
->Image
[face
][level
];
910 img
->Width
!= img0
->Width
||
911 img
->Height
!= img0
->Height
||
912 img
->TexFormat
!= img0
->TexFormat
)
920 * Check if the given cube map texture is "cube complete" as defined in
921 * the OpenGL specification.
924 _mesa_cube_complete(const struct gl_texture_object
*texObj
)
926 return _mesa_cube_level_complete(texObj
, texObj
->BaseLevel
);
930 * Mark a texture object dirty. It forces the object to be incomplete
931 * and forces the context to re-validate its state.
933 * \param ctx GL context.
934 * \param texObj texture object.
937 _mesa_dirty_texobj(struct gl_context
*ctx
, struct gl_texture_object
*texObj
)
939 texObj
->_BaseComplete
= GL_FALSE
;
940 texObj
->_MipmapComplete
= GL_FALSE
;
941 ctx
->NewState
|= _NEW_TEXTURE_OBJECT
;
946 * Return pointer to a default/fallback texture of the given type/target.
947 * The texture is an RGBA texture with all texels = (0,0,0,1).
948 * That's the value a GLSL sampler should get when sampling from an
949 * incomplete texture.
951 struct gl_texture_object
*
952 _mesa_get_fallback_texture(struct gl_context
*ctx
, gl_texture_index tex
)
954 if (!ctx
->Shared
->FallbackTex
[tex
]) {
955 /* create fallback texture now */
956 const GLsizei width
= 1, height
= 1;
959 struct gl_texture_object
*texObj
;
960 struct gl_texture_image
*texImage
;
961 mesa_format texFormat
;
962 GLuint dims
, face
, numFaces
= 1;
965 for (face
= 0; face
< 6; face
++) {
968 texel
[4*face
+ 2] = 0x0;
969 texel
[4*face
+ 3] = 0xff;
973 case TEXTURE_2D_ARRAY_INDEX
:
975 target
= GL_TEXTURE_2D_ARRAY
;
977 case TEXTURE_1D_ARRAY_INDEX
:
979 target
= GL_TEXTURE_1D_ARRAY
;
981 case TEXTURE_CUBE_INDEX
:
983 target
= GL_TEXTURE_CUBE_MAP
;
986 case TEXTURE_3D_INDEX
:
988 target
= GL_TEXTURE_3D
;
990 case TEXTURE_RECT_INDEX
:
992 target
= GL_TEXTURE_RECTANGLE
;
994 case TEXTURE_2D_INDEX
:
996 target
= GL_TEXTURE_2D
;
998 case TEXTURE_1D_INDEX
:
1000 target
= GL_TEXTURE_1D
;
1002 case TEXTURE_BUFFER_INDEX
:
1004 target
= GL_TEXTURE_BUFFER
;
1006 case TEXTURE_CUBE_ARRAY_INDEX
:
1008 target
= GL_TEXTURE_CUBE_MAP_ARRAY
;
1011 case TEXTURE_EXTERNAL_INDEX
:
1013 target
= GL_TEXTURE_EXTERNAL_OES
;
1015 case TEXTURE_2D_MULTISAMPLE_INDEX
:
1017 target
= GL_TEXTURE_2D_MULTISAMPLE
;
1019 case TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
:
1021 target
= GL_TEXTURE_2D_MULTISAMPLE_ARRAY
;
1028 /* create texture object */
1029 texObj
= ctx
->Driver
.NewTextureObject(ctx
, 0, target
);
1033 assert(texObj
->RefCount
== 1);
1034 texObj
->Sampler
.MinFilter
= GL_NEAREST
;
1035 texObj
->Sampler
.MagFilter
= GL_NEAREST
;
1037 texFormat
= ctx
->Driver
.ChooseTextureFormat(ctx
, target
,
1041 /* need a loop here just for cube maps */
1042 for (face
= 0; face
< numFaces
; face
++) {
1043 const GLenum faceTarget
= _mesa_cube_face_target(target
, face
);
1045 /* initialize level[0] texture image */
1046 texImage
= _mesa_get_tex_image(ctx
, texObj
, faceTarget
, 0);
1048 _mesa_init_teximage_fields(ctx
, texImage
,
1050 (dims
> 1) ? height
: 1,
1051 (dims
> 2) ? depth
: 1,
1053 GL_RGBA
, texFormat
);
1055 ctx
->Driver
.TexImage(ctx
, dims
, texImage
,
1056 GL_RGBA
, GL_UNSIGNED_BYTE
, texel
,
1057 &ctx
->DefaultPacking
);
1060 _mesa_test_texobj_completeness(ctx
, texObj
);
1061 assert(texObj
->_BaseComplete
);
1062 assert(texObj
->_MipmapComplete
);
1064 ctx
->Shared
->FallbackTex
[tex
] = texObj
;
1066 /* Complete the driver's operation in case another context will also
1067 * use the same fallback texture. */
1068 if (ctx
->Driver
.Finish
)
1069 ctx
->Driver
.Finish(ctx
);
1071 return ctx
->Shared
->FallbackTex
[tex
];
1076 * Compute the size of the given texture object, in bytes.
1079 texture_size(const struct gl_texture_object
*texObj
)
1081 const GLuint numFaces
= _mesa_num_tex_faces(texObj
->Target
);
1082 GLuint face
, level
, size
= 0;
1084 for (face
= 0; face
< numFaces
; face
++) {
1085 for (level
= 0; level
< MAX_TEXTURE_LEVELS
; level
++) {
1086 const struct gl_texture_image
*img
= texObj
->Image
[face
][level
];
1088 GLuint sz
= _mesa_format_image_size(img
->TexFormat
, img
->Width
,
1089 img
->Height
, img
->Depth
);
1100 * Callback called from _mesa_HashWalk()
1103 count_tex_size(GLuint key
, void *data
, void *userData
)
1105 const struct gl_texture_object
*texObj
=
1106 (const struct gl_texture_object
*) data
;
1107 GLuint
*total
= (GLuint
*) userData
;
1111 *total
= *total
+ texture_size(texObj
);
1116 * Compute total size (in bytes) of all textures for the given context.
1117 * For debugging purposes.
1120 _mesa_total_texture_memory(struct gl_context
*ctx
)
1122 GLuint tgt
, total
= 0;
1124 _mesa_HashWalk(ctx
->Shared
->TexObjects
, count_tex_size
, &total
);
1126 /* plus, the default texture objects */
1127 for (tgt
= 0; tgt
< NUM_TEXTURE_TARGETS
; tgt
++) {
1128 total
+= texture_size(ctx
->Shared
->DefaultTex
[tgt
]);
1136 * Return the base format for the given texture object by looking
1137 * at the base texture image.
1138 * \return base format (such as GL_RGBA) or GL_NONE if it can't be determined
1141 _mesa_texture_base_format(const struct gl_texture_object
*texObj
)
1143 const struct gl_texture_image
*texImage
= _mesa_base_tex_image(texObj
);
1145 return texImage
? texImage
->_BaseFormat
: GL_NONE
;
1149 static struct gl_texture_object
*
1150 invalidate_tex_image_error_check(struct gl_context
*ctx
, GLuint texture
,
1151 GLint level
, const char *name
)
1153 /* The GL_ARB_invalidate_subdata spec says:
1155 * "If <texture> is zero or is not the name of a texture, the error
1156 * INVALID_VALUE is generated."
1158 * This performs the error check in a different order than listed in the
1159 * spec. We have to get the texture object before we can validate the
1160 * other parameters against values in the texture object.
1162 struct gl_texture_object
*const t
= _mesa_lookup_texture(ctx
, texture
);
1163 if (texture
== 0 || t
== NULL
) {
1164 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(texture)", name
);
1168 /* The GL_ARB_invalidate_subdata spec says:
1170 * "If <level> is less than zero or greater than the base 2 logarithm
1171 * of the maximum texture width, height, or depth, the error
1172 * INVALID_VALUE is generated."
1174 if (level
< 0 || level
> t
->MaxLevel
) {
1175 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level)", name
);
1179 /* The GL_ARB_invalidate_subdata spec says:
1181 * "If the target of <texture> is TEXTURE_RECTANGLE, TEXTURE_BUFFER,
1182 * TEXTURE_2D_MULTISAMPLE, or TEXTURE_2D_MULTISAMPLE_ARRAY, and <level>
1183 * is not zero, the error INVALID_VALUE is generated."
1186 switch (t
->Target
) {
1187 case GL_TEXTURE_RECTANGLE
:
1188 case GL_TEXTURE_BUFFER
:
1189 case GL_TEXTURE_2D_MULTISAMPLE
:
1190 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1191 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level)", name
);
1204 * Helper function for glCreateTextures and glGenTextures. Need this because
1205 * glCreateTextures should throw errors if target = 0. This is not exposed to
1206 * the rest of Mesa to encourage Mesa internals to use nameless textures,
1207 * which do not require expensive hash lookups.
1208 * \param target either 0 or a valid / error-checked texture target enum
1211 create_textures(struct gl_context
*ctx
, GLenum target
,
1212 GLsizei n
, GLuint
*textures
, const char *caller
)
1221 * This must be atomic (generation and allocation of texture IDs)
1223 _mesa_HashLockMutex(ctx
->Shared
->TexObjects
);
1225 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->TexObjects
, n
);
1227 /* Allocate new, empty texture objects */
1228 for (i
= 0; i
< n
; i
++) {
1229 struct gl_texture_object
*texObj
;
1230 GLuint name
= first
+ i
;
1231 texObj
= ctx
->Driver
.NewTextureObject(ctx
, name
, target
);
1233 _mesa_HashUnlockMutex(ctx
->Shared
->TexObjects
);
1234 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", caller
);
1238 /* insert into hash table */
1239 _mesa_HashInsertLocked(ctx
->Shared
->TexObjects
, texObj
->Name
, texObj
);
1244 _mesa_HashUnlockMutex(ctx
->Shared
->TexObjects
);
1249 create_textures_err(struct gl_context
*ctx
, GLenum target
,
1250 GLsizei n
, GLuint
*textures
, const char *caller
)
1252 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1253 _mesa_debug(ctx
, "%s %d\n", caller
, n
);
1256 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n < 0)", caller
);
1260 create_textures(ctx
, target
, n
, textures
, caller
);
1266 /***********************************************************************/
1267 /** \name API functions */
1272 * Generate texture names.
1274 * \param n number of texture names to be generated.
1275 * \param textures an array in which will hold the generated texture names.
1277 * \sa glGenTextures(), glCreateTextures().
1279 * Calls _mesa_HashFindFreeKeyBlock() to find a block of free texture
1280 * IDs which are stored in \p textures. Corresponding empty texture
1281 * objects are also generated.
1284 _mesa_GenTextures_no_error(GLsizei n
, GLuint
*textures
)
1286 GET_CURRENT_CONTEXT(ctx
);
1287 create_textures(ctx
, 0, n
, textures
, "glGenTextures");
1292 _mesa_GenTextures(GLsizei n
, GLuint
*textures
)
1294 GET_CURRENT_CONTEXT(ctx
);
1295 create_textures_err(ctx
, 0, n
, textures
, "glGenTextures");
1299 * Create texture objects.
1301 * \param target the texture target for each name to be generated.
1302 * \param n number of texture names to be generated.
1303 * \param textures an array in which will hold the generated texture names.
1305 * \sa glCreateTextures(), glGenTextures().
1307 * Calls _mesa_HashFindFreeKeyBlock() to find a block of free texture
1308 * IDs which are stored in \p textures. Corresponding empty texture
1309 * objects are also generated.
1312 _mesa_CreateTextures_no_error(GLenum target
, GLsizei n
, GLuint
*textures
)
1314 GET_CURRENT_CONTEXT(ctx
);
1315 create_textures(ctx
, target
, n
, textures
, "glCreateTextures");
1320 _mesa_CreateTextures(GLenum target
, GLsizei n
, GLuint
*textures
)
1323 GET_CURRENT_CONTEXT(ctx
);
1326 * The 4.5 core profile spec (30.10.2014) doesn't specify what
1327 * glCreateTextures should do with invalid targets, which was probably an
1328 * oversight. This conforms to the spec for glBindTexture.
1330 targetIndex
= _mesa_tex_target_to_index(ctx
, target
);
1331 if (targetIndex
< 0) {
1332 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCreateTextures(target)");
1336 create_textures_err(ctx
, target
, n
, textures
, "glCreateTextures");
1340 * Check if the given texture object is bound to the current draw or
1341 * read framebuffer. If so, Unbind it.
1344 unbind_texobj_from_fbo(struct gl_context
*ctx
,
1345 struct gl_texture_object
*texObj
)
1347 bool progress
= false;
1349 /* Section 4.4.2 (Attaching Images to Framebuffer Objects), subsection
1350 * "Attaching Texture Images to a Framebuffer," of the OpenGL 3.1 spec
1353 * "If a texture object is deleted while its image is attached to one
1354 * or more attachment points in the currently bound framebuffer, then
1355 * it is as if FramebufferTexture* had been called, with a texture of
1356 * zero, for each attachment point to which this image was attached in
1357 * the currently bound framebuffer. In other words, this texture image
1358 * is first detached from all attachment points in the currently bound
1359 * framebuffer. Note that the texture image is specifically not
1360 * detached from any other framebuffer objects. Detaching the texture
1361 * image from any other framebuffer objects is the responsibility of
1364 if (_mesa_is_user_fbo(ctx
->DrawBuffer
)) {
1365 progress
= _mesa_detach_renderbuffer(ctx
, ctx
->DrawBuffer
, texObj
);
1367 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)
1368 && ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
1369 progress
= _mesa_detach_renderbuffer(ctx
, ctx
->ReadBuffer
, texObj
)
1374 /* Vertices are already flushed by _mesa_DeleteTextures */
1375 ctx
->NewState
|= _NEW_BUFFERS
;
1380 * Check if the given texture object is bound to any texture image units and
1381 * unbind it if so (revert to default textures).
1384 unbind_texobj_from_texunits(struct gl_context
*ctx
,
1385 struct gl_texture_object
*texObj
)
1387 const gl_texture_index index
= texObj
->TargetIndex
;
1390 if (texObj
->Target
== 0) {
1391 /* texture was never bound */
1395 assert(index
< NUM_TEXTURE_TARGETS
);
1397 for (u
= 0; u
< ctx
->Texture
.NumCurrentTexUsed
; u
++) {
1398 struct gl_texture_unit
*unit
= &ctx
->Texture
.Unit
[u
];
1400 if (texObj
== unit
->CurrentTex
[index
]) {
1401 /* Bind the default texture for this unit/target */
1402 _mesa_reference_texobj(&unit
->CurrentTex
[index
],
1403 ctx
->Shared
->DefaultTex
[index
]);
1404 unit
->_BoundTextures
&= ~(1 << index
);
1411 * Check if the given texture object is bound to any shader image unit
1412 * and unbind it if that's the case.
1415 unbind_texobj_from_image_units(struct gl_context
*ctx
,
1416 struct gl_texture_object
*texObj
)
1420 for (i
= 0; i
< ctx
->Const
.MaxImageUnits
; i
++) {
1421 struct gl_image_unit
*unit
= &ctx
->ImageUnits
[i
];
1423 if (texObj
== unit
->TexObj
) {
1424 _mesa_reference_texobj(&unit
->TexObj
, NULL
);
1425 *unit
= _mesa_default_image_unit(ctx
);
1432 * Unbinds all textures bound to the given texture image unit.
1435 unbind_textures_from_unit(struct gl_context
*ctx
, GLuint unit
)
1437 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[unit
];
1439 while (texUnit
->_BoundTextures
) {
1440 const GLuint index
= ffs(texUnit
->_BoundTextures
) - 1;
1441 struct gl_texture_object
*texObj
= ctx
->Shared
->DefaultTex
[index
];
1443 _mesa_reference_texobj(&texUnit
->CurrentTex
[index
], texObj
);
1445 /* Pass BindTexture call to device driver */
1446 if (ctx
->Driver
.BindTexture
)
1447 ctx
->Driver
.BindTexture(ctx
, unit
, 0, texObj
);
1449 texUnit
->_BoundTextures
&= ~(1 << index
);
1450 ctx
->NewState
|= _NEW_TEXTURE_OBJECT
;
1456 * Delete named textures.
1458 * \param n number of textures to be deleted.
1459 * \param textures array of texture IDs to be deleted.
1461 * \sa glDeleteTextures().
1463 * If we're about to delete a texture that's currently bound to any
1464 * texture unit, unbind the texture first. Decrement the reference
1465 * count on the texture object and delete it if it's zero.
1466 * Recall that texture objects can be shared among several rendering
1470 delete_textures(struct gl_context
*ctx
, GLsizei n
, const GLuint
*textures
)
1472 FLUSH_VERTICES(ctx
, 0); /* too complex */
1477 for (GLsizei i
= 0; i
< n
; i
++) {
1478 if (textures
[i
] > 0) {
1479 struct gl_texture_object
*delObj
1480 = _mesa_lookup_texture(ctx
, textures
[i
]);
1483 _mesa_lock_texture(ctx
, delObj
);
1485 /* Check if texture is bound to any framebuffer objects.
1487 * See section 4.4.2.3 of GL_EXT_framebuffer_object.
1489 unbind_texobj_from_fbo(ctx
, delObj
);
1491 /* Check if this texture is currently bound to any texture units.
1494 unbind_texobj_from_texunits(ctx
, delObj
);
1496 /* Check if this texture is currently bound to any shader
1497 * image unit. If so, unbind it.
1498 * See section 3.9.X of GL_ARB_shader_image_load_store.
1500 unbind_texobj_from_image_units(ctx
, delObj
);
1502 /* Make all handles that reference this texture object non-resident
1503 * in the current context.
1505 _mesa_make_texture_handles_non_resident(ctx
, delObj
);
1507 _mesa_unlock_texture(ctx
, delObj
);
1509 ctx
->NewState
|= _NEW_TEXTURE_OBJECT
;
1511 /* The texture _name_ is now free for re-use.
1512 * Remove it from the hash table now.
1514 _mesa_HashRemove(ctx
->Shared
->TexObjects
, delObj
->Name
);
1516 /* Unreference the texobj. If refcount hits zero, the texture
1519 _mesa_reference_texobj(&delObj
, NULL
);
1526 * This deletes a texObj without altering the hash table.
1529 _mesa_delete_nameless_texture(struct gl_context
*ctx
,
1530 struct gl_texture_object
*texObj
)
1535 FLUSH_VERTICES(ctx
, 0);
1537 _mesa_lock_texture(ctx
, texObj
);
1539 /* Check if texture is bound to any framebuffer objects.
1541 * See section 4.4.2.3 of GL_EXT_framebuffer_object.
1543 unbind_texobj_from_fbo(ctx
, texObj
);
1545 /* Check if this texture is currently bound to any texture units.
1548 unbind_texobj_from_texunits(ctx
, texObj
);
1550 /* Check if this texture is currently bound to any shader
1551 * image unit. If so, unbind it.
1552 * See section 3.9.X of GL_ARB_shader_image_load_store.
1554 unbind_texobj_from_image_units(ctx
, texObj
);
1556 _mesa_unlock_texture(ctx
, texObj
);
1558 ctx
->NewState
|= _NEW_TEXTURE_OBJECT
;
1560 /* Unreference the texobj. If refcount hits zero, the texture
1563 _mesa_reference_texobj(&texObj
, NULL
);
1568 _mesa_DeleteTextures_no_error(GLsizei n
, const GLuint
*textures
)
1570 GET_CURRENT_CONTEXT(ctx
);
1571 delete_textures(ctx
, n
, textures
);
1576 _mesa_DeleteTextures(GLsizei n
, const GLuint
*textures
)
1578 GET_CURRENT_CONTEXT(ctx
);
1580 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1581 _mesa_debug(ctx
, "glDeleteTextures %d\n", n
);
1584 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteTextures(n < 0)");
1588 delete_textures(ctx
, n
, textures
);
1593 * Convert a GL texture target enum such as GL_TEXTURE_2D or GL_TEXTURE_3D
1594 * into the corresponding Mesa texture target index.
1595 * Note that proxy targets are not valid here.
1596 * \return TEXTURE_x_INDEX or -1 if target is invalid
1599 _mesa_tex_target_to_index(const struct gl_context
*ctx
, GLenum target
)
1603 return _mesa_is_desktop_gl(ctx
) ? TEXTURE_1D_INDEX
: -1;
1605 return TEXTURE_2D_INDEX
;
1607 return ctx
->API
!= API_OPENGLES
? TEXTURE_3D_INDEX
: -1;
1608 case GL_TEXTURE_CUBE_MAP
:
1609 return ctx
->Extensions
.ARB_texture_cube_map
1610 ? TEXTURE_CUBE_INDEX
: -1;
1611 case GL_TEXTURE_RECTANGLE
:
1612 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.NV_texture_rectangle
1613 ? TEXTURE_RECT_INDEX
: -1;
1614 case GL_TEXTURE_1D_ARRAY
:
1615 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
1616 ? TEXTURE_1D_ARRAY_INDEX
: -1;
1617 case GL_TEXTURE_2D_ARRAY
:
1618 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1619 || _mesa_is_gles3(ctx
)
1620 ? TEXTURE_2D_ARRAY_INDEX
: -1;
1621 case GL_TEXTURE_BUFFER
:
1622 return (_mesa_has_ARB_texture_buffer_object(ctx
) ||
1623 _mesa_has_OES_texture_buffer(ctx
)) ?
1624 TEXTURE_BUFFER_INDEX
: -1;
1625 case GL_TEXTURE_EXTERNAL_OES
:
1626 return _mesa_is_gles(ctx
) && ctx
->Extensions
.OES_EGL_image_external
1627 ? TEXTURE_EXTERNAL_INDEX
: -1;
1628 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1629 return _mesa_has_texture_cube_map_array(ctx
)
1630 ? TEXTURE_CUBE_ARRAY_INDEX
: -1;
1631 case GL_TEXTURE_2D_MULTISAMPLE
:
1632 return ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
) ||
1633 _mesa_is_gles31(ctx
)) ? TEXTURE_2D_MULTISAMPLE_INDEX
: -1;
1634 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1635 return ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
) ||
1636 _mesa_is_gles31(ctx
))
1637 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
: -1;
1645 * Do actual texture binding. All error checking should have been done prior
1646 * to calling this function. Note that the texture target (1D, 2D, etc) is
1647 * always specified by the texObj->TargetIndex.
1649 * \param unit index of texture unit to update
1650 * \param texObj the new texture object (cannot be NULL)
1653 bind_texture_object(struct gl_context
*ctx
, unsigned unit
,
1654 struct gl_texture_object
*texObj
)
1656 struct gl_texture_unit
*texUnit
;
1659 assert(unit
< ARRAY_SIZE(ctx
->Texture
.Unit
));
1660 texUnit
= &ctx
->Texture
.Unit
[unit
];
1663 assert(valid_texture_object(texObj
));
1665 targetIndex
= texObj
->TargetIndex
;
1666 assert(targetIndex
>= 0);
1667 assert(targetIndex
< NUM_TEXTURE_TARGETS
);
1669 /* Check if this texture is only used by this context and is already bound.
1670 * If so, just return. For GL_OES_image_external, rebinding the texture
1671 * always must invalidate cached resources.
1673 if (targetIndex
!= TEXTURE_EXTERNAL_INDEX
) {
1675 simple_mtx_lock(&ctx
->Shared
->Mutex
);
1676 early_out
= ((ctx
->Shared
->RefCount
== 1)
1677 && (texObj
== texUnit
->CurrentTex
[targetIndex
]));
1678 simple_mtx_unlock(&ctx
->Shared
->Mutex
);
1684 /* flush before changing binding */
1685 FLUSH_VERTICES(ctx
, _NEW_TEXTURE_OBJECT
);
1687 /* If the refcount on the previously bound texture is decremented to
1688 * zero, it'll be deleted here.
1690 _mesa_reference_texobj(&texUnit
->CurrentTex
[targetIndex
], texObj
);
1692 ctx
->Texture
.NumCurrentTexUsed
= MAX2(ctx
->Texture
.NumCurrentTexUsed
,
1695 if (texObj
->Name
!= 0)
1696 texUnit
->_BoundTextures
|= (1 << targetIndex
);
1698 texUnit
->_BoundTextures
&= ~(1 << targetIndex
);
1700 /* Pass BindTexture call to device driver */
1701 if (ctx
->Driver
.BindTexture
) {
1702 ctx
->Driver
.BindTexture(ctx
, unit
, texObj
->Target
, texObj
);
1707 * Light-weight bind texture for internal users
1709 * This is really just \c finish_texture_init plus \c bind_texture_object.
1710 * This is intended to be used by internal Mesa functions that use
1711 * \c _mesa_CreateTexture and need to bind textures (e.g., meta).
1714 _mesa_bind_texture(struct gl_context
*ctx
, GLenum target
,
1715 struct gl_texture_object
*tex_obj
)
1717 const GLint targetIndex
= _mesa_tex_target_to_index(ctx
, target
);
1719 assert(targetIndex
>= 0 && targetIndex
< NUM_TEXTURE_TARGETS
);
1721 if (tex_obj
->Target
== 0)
1722 finish_texture_init(ctx
, target
, tex_obj
, targetIndex
);
1724 assert(tex_obj
->Target
== target
);
1725 assert(tex_obj
->TargetIndex
== targetIndex
);
1727 bind_texture_object(ctx
, ctx
->Texture
.CurrentUnit
, tex_obj
);
1730 struct gl_texture_object
*
1731 _mesa_lookup_or_create_texture(struct gl_context
*ctx
, GLenum target
,
1732 GLuint texName
, bool no_error
, bool is_ext_dsa
,
1735 struct gl_texture_object
*newTexObj
= NULL
;
1739 if (_mesa_is_proxy_texture(target
)) {
1740 /* EXT_dsa allows proxy targets only when texName is 0 */
1742 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(target = %s)", caller
,
1743 _mesa_enum_to_string(target
));
1746 return _mesa_get_current_tex_object(ctx
, target
);
1748 if (GL_TEXTURE_CUBE_MAP_POSITIVE_X
<= target
&&
1749 target
<= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
) {
1750 target
= GL_TEXTURE_CUBE_MAP
;
1754 targetIndex
= _mesa_tex_target_to_index(ctx
, target
);
1755 if (!no_error
&& targetIndex
< 0) {
1756 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target = %s)", caller
,
1757 _mesa_enum_to_string(target
));
1760 assert(targetIndex
< NUM_TEXTURE_TARGETS
);
1763 * Get pointer to new texture object (newTexObj)
1766 /* Use a default texture object */
1767 newTexObj
= ctx
->Shared
->DefaultTex
[targetIndex
];
1769 /* non-default texture object */
1770 newTexObj
= _mesa_lookup_texture(ctx
, texName
);
1772 /* error checking */
1774 newTexObj
->Target
!= 0 && newTexObj
->Target
!= target
) {
1775 /* The named texture object's target doesn't match the
1778 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1779 "%s(target mismatch)", caller
);
1782 if (newTexObj
->Target
== 0) {
1783 finish_texture_init(ctx
, target
, newTexObj
, targetIndex
);
1786 if (!no_error
&& ctx
->API
== API_OPENGL_CORE
) {
1787 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1788 "%s(non-gen name)", caller
);
1792 /* if this is a new texture id, allocate a texture object now */
1793 newTexObj
= ctx
->Driver
.NewTextureObject(ctx
, texName
, target
);
1795 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", caller
);
1799 /* and insert it into hash table */
1800 _mesa_HashInsert(ctx
->Shared
->TexObjects
, texName
, newTexObj
);
1804 assert(newTexObj
->Target
== target
);
1805 assert(newTexObj
->TargetIndex
== targetIndex
);
1811 * Implement glBindTexture(). Do error checking, look-up or create a new
1812 * texture object, then bind it in the current texture unit.
1814 * \param target texture target.
1815 * \param texName texture name.
1816 * \param texunit texture unit.
1818 static ALWAYS_INLINE
void
1819 bind_texture(struct gl_context
*ctx
, GLenum target
, GLuint texName
,
1820 GLenum texunit
, bool no_error
, const char *caller
)
1822 struct gl_texture_object
*newTexObj
=
1823 _mesa_lookup_or_create_texture(ctx
, target
, texName
, no_error
, false,
1828 bind_texture_object(ctx
, texunit
, newTexObj
);
1832 _mesa_BindTexture_no_error(GLenum target
, GLuint texName
)
1834 GET_CURRENT_CONTEXT(ctx
);
1835 bind_texture(ctx
, target
, texName
, ctx
->Texture
.CurrentUnit
, true,
1841 _mesa_BindTexture(GLenum target
, GLuint texName
)
1843 GET_CURRENT_CONTEXT(ctx
);
1845 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1846 _mesa_debug(ctx
, "glBindTexture %s %d\n",
1847 _mesa_enum_to_string(target
), (GLint
) texName
);
1849 bind_texture(ctx
, target
, texName
, ctx
->Texture
.CurrentUnit
, false,
1855 _mesa_BindMultiTextureEXT(GLenum texunit
, GLenum target
, GLuint texture
)
1857 GET_CURRENT_CONTEXT(ctx
);
1859 unsigned unit
= texunit
- GL_TEXTURE0
;
1861 if (texunit
< GL_TEXTURE0
|| unit
>= _mesa_max_tex_unit(ctx
)) {
1862 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindMultiTextureEXT(texunit=%s)",
1863 _mesa_enum_to_string(texunit
));
1867 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1868 _mesa_debug(ctx
, "glBindMultiTextureEXT %s %d\n",
1869 _mesa_enum_to_string(texunit
), (GLint
) texture
);
1871 bind_texture(ctx
, target
, texture
, unit
, false, "glBindMultiTextureEXT");
1876 * OpenGL 4.5 / GL_ARB_direct_state_access glBindTextureUnit().
1878 * \param unit texture unit.
1879 * \param texture texture name.
1881 * \sa glBindTexture().
1883 * If the named texture is 0, this will reset each target for the specified
1884 * texture unit to its default texture.
1885 * If the named texture is not 0 or a recognized texture name, this throws
1886 * GL_INVALID_OPERATION.
1888 static ALWAYS_INLINE
void
1889 bind_texture_unit(struct gl_context
*ctx
, GLuint unit
, GLuint texture
,
1892 struct gl_texture_object
*texObj
;
1894 /* Section 8.1 (Texture Objects) of the OpenGL 4.5 core profile spec
1896 * "When texture is zero, each of the targets enumerated at the
1897 * beginning of this section is reset to its default texture for the
1898 * corresponding texture image unit."
1901 unbind_textures_from_unit(ctx
, unit
);
1905 /* Get the non-default texture object */
1906 texObj
= _mesa_lookup_texture(ctx
, texture
);
1908 /* Error checking */
1910 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1911 "glBindTextureUnit(non-gen name)");
1915 if (texObj
->Target
== 0) {
1916 /* Texture object was gen'd but never bound so the target is not set */
1917 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindTextureUnit(target)");
1922 assert(valid_texture_object(texObj
));
1924 bind_texture_object(ctx
, unit
, texObj
);
1929 _mesa_BindTextureUnit_no_error(GLuint unit
, GLuint texture
)
1931 GET_CURRENT_CONTEXT(ctx
);
1932 bind_texture_unit(ctx
, unit
, texture
, true);
1937 _mesa_BindTextureUnit(GLuint unit
, GLuint texture
)
1939 GET_CURRENT_CONTEXT(ctx
);
1941 if (unit
>= _mesa_max_tex_unit(ctx
)) {
1942 _mesa_error(ctx
, GL_INVALID_VALUE
, "glBindTextureUnit(unit=%u)", unit
);
1946 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1947 _mesa_debug(ctx
, "glBindTextureUnit %s %d\n",
1948 _mesa_enum_to_string(GL_TEXTURE0
+unit
), (GLint
) texture
);
1950 bind_texture_unit(ctx
, unit
, texture
, false);
1955 * OpenGL 4.4 / GL_ARB_multi_bind glBindTextures().
1957 static ALWAYS_INLINE
void
1958 bind_textures(struct gl_context
*ctx
, GLuint first
, GLsizei count
,
1959 const GLuint
*textures
, bool no_error
)
1964 /* Note that the error semantics for multi-bind commands differ from
1965 * those of other GL commands.
1967 * The issues section in the ARB_multi_bind spec says:
1969 * "(11) Typically, OpenGL specifies that if an error is generated by
1970 * a command, that command has no effect. This is somewhat
1971 * unfortunate for multi-bind commands, because it would require
1972 * a first pass to scan the entire list of bound objects for
1973 * errors and then a second pass to actually perform the
1974 * bindings. Should we have different error semantics?
1976 * RESOLVED: Yes. In this specification, when the parameters for
1977 * one of the <count> binding points are invalid, that binding
1978 * point is not updated and an error will be generated. However,
1979 * other binding points in the same command will be updated if
1980 * their parameters are valid and no other error occurs."
1983 _mesa_HashLockMutex(ctx
->Shared
->TexObjects
);
1985 for (i
= 0; i
< count
; i
++) {
1986 if (textures
[i
] != 0) {
1987 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[first
+ i
];
1988 struct gl_texture_object
*current
= texUnit
->_Current
;
1989 struct gl_texture_object
*texObj
;
1991 if (current
&& current
->Name
== textures
[i
])
1994 texObj
= _mesa_lookup_texture_locked(ctx
, textures
[i
]);
1996 if (texObj
&& texObj
->Target
!= 0) {
1997 bind_texture_object(ctx
, first
+ i
, texObj
);
1998 } else if (!no_error
) {
1999 /* The ARB_multi_bind spec says:
2001 * "An INVALID_OPERATION error is generated if any value
2002 * in <textures> is not zero or the name of an existing
2003 * texture object (per binding)."
2005 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2006 "glBindTextures(textures[%d]=%u is not zero "
2007 "or the name of an existing texture object)",
2011 unbind_textures_from_unit(ctx
, first
+ i
);
2015 _mesa_HashUnlockMutex(ctx
->Shared
->TexObjects
);
2017 /* Unbind all textures in the range <first> through <first>+<count>-1 */
2018 for (i
= 0; i
< count
; i
++)
2019 unbind_textures_from_unit(ctx
, first
+ i
);
2025 _mesa_BindTextures_no_error(GLuint first
, GLsizei count
, const GLuint
*textures
)
2027 GET_CURRENT_CONTEXT(ctx
);
2028 bind_textures(ctx
, first
, count
, textures
, true);
2033 _mesa_BindTextures(GLuint first
, GLsizei count
, const GLuint
*textures
)
2035 GET_CURRENT_CONTEXT(ctx
);
2037 /* The ARB_multi_bind spec says:
2039 * "An INVALID_OPERATION error is generated if <first> + <count>
2040 * is greater than the number of texture image units supported
2041 * by the implementation."
2043 if (first
+ count
> ctx
->Const
.MaxCombinedTextureImageUnits
) {
2044 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2045 "glBindTextures(first=%u + count=%d > the value of "
2046 "GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS=%u)",
2047 first
, count
, ctx
->Const
.MaxCombinedTextureImageUnits
);
2051 bind_textures(ctx
, first
, count
, textures
, false);
2056 * Set texture priorities.
2058 * \param n number of textures.
2059 * \param texName texture names.
2060 * \param priorities corresponding texture priorities.
2062 * \sa glPrioritizeTextures().
2064 * Looks up each texture in the hash, clamps the corresponding priority between
2065 * 0.0 and 1.0, and calls dd_function_table::PrioritizeTexture.
2068 _mesa_PrioritizeTextures( GLsizei n
, const GLuint
*texName
,
2069 const GLclampf
*priorities
)
2071 GET_CURRENT_CONTEXT(ctx
);
2074 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2075 _mesa_debug(ctx
, "glPrioritizeTextures %d\n", n
);
2077 FLUSH_VERTICES(ctx
, 0);
2080 _mesa_error( ctx
, GL_INVALID_VALUE
, "glPrioritizeTextures" );
2087 for (i
= 0; i
< n
; i
++) {
2088 if (texName
[i
] > 0) {
2089 struct gl_texture_object
*t
= _mesa_lookup_texture(ctx
, texName
[i
]);
2091 t
->Priority
= CLAMP( priorities
[i
], 0.0F
, 1.0F
);
2096 ctx
->NewState
|= _NEW_TEXTURE_OBJECT
;
2102 * See if textures are loaded in texture memory.
2104 * \param n number of textures to query.
2105 * \param texName array with the texture names.
2106 * \param residences array which will hold the residence status.
2108 * \return GL_TRUE if all textures are resident and
2109 * residences is left unchanged,
2111 * Note: we assume all textures are always resident
2113 GLboolean GLAPIENTRY
2114 _mesa_AreTexturesResident(GLsizei n
, const GLuint
*texName
,
2115 GLboolean
*residences
)
2117 GET_CURRENT_CONTEXT(ctx
);
2118 GLboolean allResident
= GL_TRUE
;
2120 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
2122 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2123 _mesa_debug(ctx
, "glAreTexturesResident %d\n", n
);
2126 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident(n)");
2130 if (!texName
|| !residences
)
2133 /* We only do error checking on the texture names */
2134 for (i
= 0; i
< n
; i
++) {
2135 struct gl_texture_object
*t
;
2136 if (texName
[i
] == 0) {
2137 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident");
2140 t
= _mesa_lookup_texture(ctx
, texName
[i
]);
2142 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident");
2152 * See if a name corresponds to a texture.
2154 * \param texture texture name.
2156 * \return GL_TRUE if texture name corresponds to a texture, or GL_FALSE
2159 * \sa glIsTexture().
2161 * Calls _mesa_HashLookup().
2163 GLboolean GLAPIENTRY
2164 _mesa_IsTexture( GLuint texture
)
2166 struct gl_texture_object
*t
;
2167 GET_CURRENT_CONTEXT(ctx
);
2168 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
2170 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2171 _mesa_debug(ctx
, "glIsTexture %d\n", texture
);
2176 t
= _mesa_lookup_texture(ctx
, texture
);
2178 /* IsTexture is true only after object has been bound once. */
2179 return t
&& t
->Target
;
2184 * Simplest implementation of texture locking: grab the shared tex
2185 * mutex. Examine the shared context state timestamp and if there has
2186 * been a change, set the appropriate bits in ctx->NewState.
2188 * This is used to deal with synchronizing things when a texture object
2189 * is used/modified by different contexts (or threads) which are sharing
2192 * See also _mesa_lock/unlock_texture() in teximage.h
2195 _mesa_lock_context_textures( struct gl_context
*ctx
)
2197 mtx_lock(&ctx
->Shared
->TexMutex
);
2199 if (ctx
->Shared
->TextureStateStamp
!= ctx
->TextureStateTimestamp
) {
2200 ctx
->NewState
|= _NEW_TEXTURE_OBJECT
;
2201 ctx
->TextureStateTimestamp
= ctx
->Shared
->TextureStateStamp
;
2207 _mesa_unlock_context_textures( struct gl_context
*ctx
)
2209 assert(ctx
->Shared
->TextureStateStamp
== ctx
->TextureStateTimestamp
);
2210 mtx_unlock(&ctx
->Shared
->TexMutex
);
2215 _mesa_InvalidateTexSubImage_no_error(GLuint texture
, GLint level
, GLint xoffset
,
2216 GLint yoffset
, GLint zoffset
,
2217 GLsizei width
, GLsizei height
,
2225 _mesa_InvalidateTexSubImage(GLuint texture
, GLint level
, GLint xoffset
,
2226 GLint yoffset
, GLint zoffset
, GLsizei width
,
2227 GLsizei height
, GLsizei depth
)
2229 struct gl_texture_object
*t
;
2230 struct gl_texture_image
*image
;
2231 GET_CURRENT_CONTEXT(ctx
);
2233 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2234 _mesa_debug(ctx
, "glInvalidateTexSubImage %d\n", texture
);
2236 t
= invalidate_tex_image_error_check(ctx
, texture
, level
,
2237 "glInvalidateTexSubImage");
2239 /* The GL_ARB_invalidate_subdata spec says:
2241 * "...the specified subregion must be between -<b> and <dim>+<b> where
2242 * <dim> is the size of the dimension of the texture image, and <b> is
2243 * the size of the border of that texture image, otherwise
2244 * INVALID_VALUE is generated (border is not applied to dimensions that
2245 * don't exist in a given texture target)."
2247 image
= t
->Image
[0][level
];
2256 /* The GL_ARB_invalidate_subdata spec says:
2258 * "For texture targets that don't have certain dimensions, this
2259 * command treats those dimensions as having a size of 1. For
2260 * example, to invalidate a portion of a two-dimensional texture,
2261 * the application would use <zoffset> equal to zero and <depth>
2264 switch (t
->Target
) {
2265 case GL_TEXTURE_BUFFER
:
2274 xBorder
= image
->Border
;
2277 imageWidth
= image
->Width
;
2281 case GL_TEXTURE_1D_ARRAY
:
2282 xBorder
= image
->Border
;
2285 imageWidth
= image
->Width
;
2286 imageHeight
= image
->Height
;
2290 case GL_TEXTURE_CUBE_MAP
:
2291 case GL_TEXTURE_RECTANGLE
:
2292 case GL_TEXTURE_2D_MULTISAMPLE
:
2293 xBorder
= image
->Border
;
2294 yBorder
= image
->Border
;
2296 imageWidth
= image
->Width
;
2297 imageHeight
= image
->Height
;
2300 case GL_TEXTURE_2D_ARRAY
:
2301 case GL_TEXTURE_CUBE_MAP_ARRAY
:
2302 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
2303 xBorder
= image
->Border
;
2304 yBorder
= image
->Border
;
2306 imageWidth
= image
->Width
;
2307 imageHeight
= image
->Height
;
2308 imageDepth
= image
->Depth
;
2311 xBorder
= image
->Border
;
2312 yBorder
= image
->Border
;
2313 zBorder
= image
->Border
;
2314 imageWidth
= image
->Width
;
2315 imageHeight
= image
->Height
;
2316 imageDepth
= image
->Depth
;
2319 assert(!"Should not get here.");
2329 if (xoffset
< -xBorder
) {
2330 _mesa_error(ctx
, GL_INVALID_VALUE
, "glInvalidateSubTexImage(xoffset)");
2334 if (xoffset
+ width
> imageWidth
+ xBorder
) {
2335 _mesa_error(ctx
, GL_INVALID_VALUE
,
2336 "glInvalidateSubTexImage(xoffset+width)");
2340 if (yoffset
< -yBorder
) {
2341 _mesa_error(ctx
, GL_INVALID_VALUE
, "glInvalidateSubTexImage(yoffset)");
2345 if (yoffset
+ height
> imageHeight
+ yBorder
) {
2346 _mesa_error(ctx
, GL_INVALID_VALUE
,
2347 "glInvalidateSubTexImage(yoffset+height)");
2351 if (zoffset
< -zBorder
) {
2352 _mesa_error(ctx
, GL_INVALID_VALUE
,
2353 "glInvalidateSubTexImage(zoffset)");
2357 if (zoffset
+ depth
> imageDepth
+ zBorder
) {
2358 _mesa_error(ctx
, GL_INVALID_VALUE
,
2359 "glInvalidateSubTexImage(zoffset+depth)");
2364 /* We don't actually do anything for this yet. Just return after
2365 * validating the parameters and generating the required errors.
2372 _mesa_InvalidateTexImage_no_error(GLuint texture
, GLint level
)
2379 _mesa_InvalidateTexImage(GLuint texture
, GLint level
)
2381 GET_CURRENT_CONTEXT(ctx
);
2383 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2384 _mesa_debug(ctx
, "glInvalidateTexImage(%d, %d)\n", texture
, level
);
2386 invalidate_tex_image_error_check(ctx
, texture
, level
,
2387 "glInvalidateTexImage");
2389 /* We don't actually do anything for this yet. Just return after
2390 * validating the parameters and generating the required errors.