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 * Allocate and initialize a new texture object. But don't put it into the
223 * texture object hash table.
225 * Called via ctx->Driver.NewTextureObject, unless overridden by a device
228 * \param shared the shared GL state structure to contain the texture object
229 * \param name integer name for the texture object
230 * \param target either GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D,
231 * GL_TEXTURE_CUBE_MAP or GL_TEXTURE_RECTANGLE_NV. zero is ok for the sake
234 * \return pointer to new texture object.
236 struct gl_texture_object
*
237 _mesa_new_texture_object(struct gl_context
*ctx
, GLuint name
, GLenum target
)
239 struct gl_texture_object
*obj
;
241 obj
= MALLOC_STRUCT(gl_texture_object
);
245 _mesa_initialize_texture_object(ctx
, obj
, name
, target
);
251 * Initialize a new texture object to default values.
252 * \param obj the texture object
253 * \param name the texture name
254 * \param target the texture target
257 _mesa_initialize_texture_object( struct gl_context
*ctx
,
258 struct gl_texture_object
*obj
,
259 GLuint name
, GLenum target
)
261 assert(target
== 0 ||
262 target
== GL_TEXTURE_1D
||
263 target
== GL_TEXTURE_2D
||
264 target
== GL_TEXTURE_3D
||
265 target
== GL_TEXTURE_CUBE_MAP
||
266 target
== GL_TEXTURE_RECTANGLE_NV
||
267 target
== GL_TEXTURE_1D_ARRAY_EXT
||
268 target
== GL_TEXTURE_2D_ARRAY_EXT
||
269 target
== GL_TEXTURE_EXTERNAL_OES
||
270 target
== GL_TEXTURE_CUBE_MAP_ARRAY
||
271 target
== GL_TEXTURE_BUFFER
||
272 target
== GL_TEXTURE_2D_MULTISAMPLE
||
273 target
== GL_TEXTURE_2D_MULTISAMPLE_ARRAY
);
275 memset(obj
, 0, sizeof(*obj
));
276 /* init the non-zero fields */
277 simple_mtx_init(&obj
->Mutex
, mtx_plain
);
280 obj
->Target
= target
;
282 obj
->TargetIndex
= _mesa_tex_target_to_index(ctx
, target
);
285 obj
->TargetIndex
= NUM_TEXTURE_TARGETS
; /* invalid/error value */
287 obj
->Priority
= 1.0F
;
289 obj
->MaxLevel
= 1000;
291 /* must be one; no support for (YUV) planes in separate buffers */
292 obj
->RequiredTextureImageUnits
= 1;
295 if (target
== GL_TEXTURE_RECTANGLE_NV
||
296 target
== GL_TEXTURE_EXTERNAL_OES
) {
297 obj
->Sampler
.WrapS
= GL_CLAMP_TO_EDGE
;
298 obj
->Sampler
.WrapT
= GL_CLAMP_TO_EDGE
;
299 obj
->Sampler
.WrapR
= GL_CLAMP_TO_EDGE
;
300 obj
->Sampler
.MinFilter
= GL_LINEAR
;
303 obj
->Sampler
.WrapS
= GL_REPEAT
;
304 obj
->Sampler
.WrapT
= GL_REPEAT
;
305 obj
->Sampler
.WrapR
= GL_REPEAT
;
306 obj
->Sampler
.MinFilter
= GL_NEAREST_MIPMAP_LINEAR
;
308 obj
->Sampler
.MagFilter
= GL_LINEAR
;
309 obj
->Sampler
.MinLod
= -1000.0;
310 obj
->Sampler
.MaxLod
= 1000.0;
311 obj
->Sampler
.LodBias
= 0.0;
312 obj
->Sampler
.MaxAnisotropy
= 1.0;
313 obj
->Sampler
.CompareMode
= GL_NONE
; /* ARB_shadow */
314 obj
->Sampler
.CompareFunc
= GL_LEQUAL
; /* ARB_shadow */
315 obj
->DepthMode
= ctx
->API
== API_OPENGL_CORE
? GL_RED
: GL_LUMINANCE
;
316 obj
->StencilSampling
= false;
317 obj
->Sampler
.CubeMapSeamless
= GL_FALSE
;
318 obj
->Sampler
.HandleAllocated
= GL_FALSE
;
319 obj
->Swizzle
[0] = GL_RED
;
320 obj
->Swizzle
[1] = GL_GREEN
;
321 obj
->Swizzle
[2] = GL_BLUE
;
322 obj
->Swizzle
[3] = GL_ALPHA
;
323 obj
->_Swizzle
= SWIZZLE_NOOP
;
324 obj
->Sampler
.sRGBDecode
= GL_DECODE_EXT
;
325 obj
->BufferObjectFormat
= GL_R8
;
326 obj
->_BufferObjectFormat
= MESA_FORMAT_R_UNORM8
;
327 obj
->ImageFormatCompatibilityType
= GL_IMAGE_FORMAT_COMPATIBILITY_BY_SIZE
;
329 /* GL_ARB_bindless_texture */
330 _mesa_init_texture_handles(obj
);
335 * Some texture initialization can't be finished until we know which
336 * target it's getting bound to (GL_TEXTURE_1D/2D/etc).
339 finish_texture_init(struct gl_context
*ctx
, GLenum target
,
340 struct gl_texture_object
*obj
, int targetIndex
)
342 GLenum filter
= GL_LINEAR
;
343 assert(obj
->Target
== 0);
345 obj
->Target
= target
;
346 obj
->TargetIndex
= targetIndex
;
347 assert(obj
->TargetIndex
< NUM_TEXTURE_TARGETS
);
350 case GL_TEXTURE_2D_MULTISAMPLE
:
351 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
355 case GL_TEXTURE_RECTANGLE_NV
:
356 case GL_TEXTURE_EXTERNAL_OES
:
357 /* have to init wrap and filter state here - kind of klunky */
358 obj
->Sampler
.WrapS
= GL_CLAMP_TO_EDGE
;
359 obj
->Sampler
.WrapT
= GL_CLAMP_TO_EDGE
;
360 obj
->Sampler
.WrapR
= GL_CLAMP_TO_EDGE
;
361 obj
->Sampler
.MinFilter
= filter
;
362 obj
->Sampler
.MagFilter
= filter
;
363 if (ctx
->Driver
.TexParameter
) {
364 /* XXX we probably don't need to make all these calls */
365 ctx
->Driver
.TexParameter(ctx
, obj
, GL_TEXTURE_WRAP_S
);
366 ctx
->Driver
.TexParameter(ctx
, obj
, GL_TEXTURE_WRAP_T
);
367 ctx
->Driver
.TexParameter(ctx
, obj
, GL_TEXTURE_WRAP_R
);
368 ctx
->Driver
.TexParameter(ctx
, obj
, GL_TEXTURE_MIN_FILTER
);
369 ctx
->Driver
.TexParameter(ctx
, obj
, GL_TEXTURE_MAG_FILTER
);
374 /* nothing needs done */
381 * Deallocate a texture object struct. It should have already been
382 * removed from the texture object pool.
383 * Called via ctx->Driver.DeleteTexture() if not overriden by a driver.
385 * \param shared the shared GL state to which the object belongs.
386 * \param texObj the texture object to delete.
389 _mesa_delete_texture_object(struct gl_context
*ctx
,
390 struct gl_texture_object
*texObj
)
394 /* Set Target to an invalid value. With some assertions elsewhere
395 * we can try to detect possible use of deleted textures.
397 texObj
->Target
= 0x99;
399 /* free the texture images */
400 for (face
= 0; face
< 6; face
++) {
401 for (i
= 0; i
< MAX_TEXTURE_LEVELS
; i
++) {
402 if (texObj
->Image
[face
][i
]) {
403 ctx
->Driver
.DeleteTextureImage(ctx
, texObj
->Image
[face
][i
]);
408 /* Delete all texture/image handles. */
409 _mesa_delete_texture_handles(ctx
, texObj
);
411 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, NULL
);
413 /* destroy the mutex -- it may have allocated memory (eg on bsd) */
414 simple_mtx_destroy(&texObj
->Mutex
);
418 /* free this object */
424 * Copy texture object state from one texture object to another.
425 * Use for glPush/PopAttrib.
427 * \param dest destination texture object.
428 * \param src source texture object.
431 _mesa_copy_texture_object( struct gl_texture_object
*dest
,
432 const struct gl_texture_object
*src
)
434 dest
->Target
= src
->Target
;
435 dest
->TargetIndex
= src
->TargetIndex
;
436 dest
->Name
= src
->Name
;
437 dest
->Priority
= src
->Priority
;
438 dest
->Sampler
.BorderColor
.f
[0] = src
->Sampler
.BorderColor
.f
[0];
439 dest
->Sampler
.BorderColor
.f
[1] = src
->Sampler
.BorderColor
.f
[1];
440 dest
->Sampler
.BorderColor
.f
[2] = src
->Sampler
.BorderColor
.f
[2];
441 dest
->Sampler
.BorderColor
.f
[3] = src
->Sampler
.BorderColor
.f
[3];
442 dest
->Sampler
.WrapS
= src
->Sampler
.WrapS
;
443 dest
->Sampler
.WrapT
= src
->Sampler
.WrapT
;
444 dest
->Sampler
.WrapR
= src
->Sampler
.WrapR
;
445 dest
->Sampler
.MinFilter
= src
->Sampler
.MinFilter
;
446 dest
->Sampler
.MagFilter
= src
->Sampler
.MagFilter
;
447 dest
->Sampler
.MinLod
= src
->Sampler
.MinLod
;
448 dest
->Sampler
.MaxLod
= src
->Sampler
.MaxLod
;
449 dest
->Sampler
.LodBias
= src
->Sampler
.LodBias
;
450 dest
->BaseLevel
= src
->BaseLevel
;
451 dest
->MaxLevel
= src
->MaxLevel
;
452 dest
->Sampler
.MaxAnisotropy
= src
->Sampler
.MaxAnisotropy
;
453 dest
->Sampler
.CompareMode
= src
->Sampler
.CompareMode
;
454 dest
->Sampler
.CompareFunc
= src
->Sampler
.CompareFunc
;
455 dest
->Sampler
.CubeMapSeamless
= src
->Sampler
.CubeMapSeamless
;
456 dest
->DepthMode
= src
->DepthMode
;
457 dest
->StencilSampling
= src
->StencilSampling
;
458 dest
->Sampler
.sRGBDecode
= src
->Sampler
.sRGBDecode
;
459 dest
->_MaxLevel
= src
->_MaxLevel
;
460 dest
->_MaxLambda
= src
->_MaxLambda
;
461 dest
->GenerateMipmap
= src
->GenerateMipmap
;
462 dest
->_BaseComplete
= src
->_BaseComplete
;
463 dest
->_MipmapComplete
= src
->_MipmapComplete
;
464 COPY_4V(dest
->Swizzle
, src
->Swizzle
);
465 dest
->_Swizzle
= src
->_Swizzle
;
466 dest
->_IsHalfFloat
= src
->_IsHalfFloat
;
467 dest
->_IsFloat
= src
->_IsFloat
;
469 dest
->RequiredTextureImageUnits
= src
->RequiredTextureImageUnits
;
474 * Free all texture images of the given texture objectm, except for
477 * \param ctx GL context.
478 * \param texObj texture object.
479 * \param retainTexImage a texture image that will \em not be freed.
481 * \sa _mesa_clear_texture_image().
484 _mesa_clear_texture_object(struct gl_context
*ctx
,
485 struct gl_texture_object
*texObj
,
486 struct gl_texture_image
*retainTexImage
)
490 if (texObj
->Target
== 0)
493 for (i
= 0; i
< MAX_FACES
; i
++) {
494 for (j
= 0; j
< MAX_TEXTURE_LEVELS
; j
++) {
495 struct gl_texture_image
*texImage
= texObj
->Image
[i
][j
];
496 if (texImage
&& texImage
!= retainTexImage
)
497 _mesa_clear_texture_image(ctx
, texImage
);
504 * Check if the given texture object is valid by examining its Target field.
505 * For debugging only.
508 valid_texture_object(const struct gl_texture_object
*tex
)
510 switch (tex
->Target
) {
515 case GL_TEXTURE_CUBE_MAP
:
516 case GL_TEXTURE_RECTANGLE_NV
:
517 case GL_TEXTURE_1D_ARRAY_EXT
:
518 case GL_TEXTURE_2D_ARRAY_EXT
:
519 case GL_TEXTURE_BUFFER
:
520 case GL_TEXTURE_EXTERNAL_OES
:
521 case GL_TEXTURE_CUBE_MAP_ARRAY
:
522 case GL_TEXTURE_2D_MULTISAMPLE
:
523 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
526 _mesa_problem(NULL
, "invalid reference to a deleted texture object");
529 _mesa_problem(NULL
, "invalid texture object Target 0x%x, Id = %u",
530 tex
->Target
, tex
->Name
);
537 * Reference (or unreference) a texture object.
538 * If '*ptr', decrement *ptr's refcount (and delete if it becomes zero).
539 * If 'tex' is non-null, increment its refcount.
540 * This is normally only called from the _mesa_reference_texobj() macro
541 * when there's a real pointer change.
544 _mesa_reference_texobj_(struct gl_texture_object
**ptr
,
545 struct gl_texture_object
*tex
)
550 /* Unreference the old texture */
551 GLboolean deleteFlag
= GL_FALSE
;
552 struct gl_texture_object
*oldTex
= *ptr
;
554 assert(valid_texture_object(oldTex
));
555 (void) valid_texture_object
; /* silence warning in release builds */
557 simple_mtx_lock(&oldTex
->Mutex
);
558 assert(oldTex
->RefCount
> 0);
561 deleteFlag
= (oldTex
->RefCount
== 0);
562 simple_mtx_unlock(&oldTex
->Mutex
);
565 /* Passing in the context drastically changes the driver code for
566 * framebuffer deletion.
568 GET_CURRENT_CONTEXT(ctx
);
570 ctx
->Driver
.DeleteTexture(ctx
, oldTex
);
572 _mesa_problem(NULL
, "Unable to delete texture, no context");
580 /* reference new texture */
581 assert(valid_texture_object(tex
));
582 simple_mtx_lock(&tex
->Mutex
);
583 assert(tex
->RefCount
> 0);
587 simple_mtx_unlock(&tex
->Mutex
);
592 enum base_mipmap
{ BASE
, MIPMAP
};
596 * Mark a texture object as incomplete. There are actually three kinds of
598 * 1. "base incomplete": the base level of the texture is invalid so no
599 * texturing is possible.
600 * 2. "mipmap incomplete": a non-base level of the texture is invalid so
601 * mipmap filtering isn't possible, but non-mipmap filtering is.
602 * 3. "texture incompleteness": some combination of texture state and
603 * sampler state renders the texture incomplete.
605 * \param t texture object
606 * \param bm either BASE or MIPMAP to indicate what's incomplete
607 * \param fmt... string describing why it's incomplete (for debugging).
610 incomplete(struct gl_texture_object
*t
, enum base_mipmap bm
,
611 const char *fmt
, ...)
613 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_TEXTURE
) {
618 vsnprintf(s
, sizeof(s
), fmt
, args
);
621 _mesa_debug(NULL
, "Texture Obj %d incomplete because: %s\n", t
->Name
, s
);
625 t
->_BaseComplete
= GL_FALSE
;
626 t
->_MipmapComplete
= GL_FALSE
;
631 * Examine a texture object to determine if it is complete.
633 * The gl_texture_object::Complete flag will be set to GL_TRUE or GL_FALSE
636 * \param ctx GL context.
637 * \param t texture object.
639 * According to the texture target, verifies that each of the mipmaps is
640 * present and has the expected size.
643 _mesa_test_texobj_completeness( const struct gl_context
*ctx
,
644 struct gl_texture_object
*t
)
646 const GLint baseLevel
= t
->BaseLevel
;
647 const struct gl_texture_image
*baseImage
;
650 /* We'll set these to FALSE if tests fail below */
651 t
->_BaseComplete
= GL_TRUE
;
652 t
->_MipmapComplete
= GL_TRUE
;
654 if (t
->Target
== GL_TEXTURE_BUFFER
) {
655 /* Buffer textures are always considered complete. The obvious case where
656 * they would be incomplete (no BO attached) is actually specced to be
657 * undefined rendering results.
662 /* Detect cases where the application set the base level to an invalid
665 if ((baseLevel
< 0) || (baseLevel
>= MAX_TEXTURE_LEVELS
)) {
666 incomplete(t
, BASE
, "base level = %d is invalid", baseLevel
);
670 if (t
->MaxLevel
< baseLevel
) {
671 incomplete(t
, MIPMAP
, "MAX_LEVEL (%d) < BASE_LEVEL (%d)",
672 t
->MaxLevel
, baseLevel
);
676 baseImage
= t
->Image
[0][baseLevel
];
678 /* Always need the base level image */
680 incomplete(t
, BASE
, "Image[baseLevel=%d] == NULL", baseLevel
);
684 /* Check width/height/depth for zero */
685 if (baseImage
->Width
== 0 ||
686 baseImage
->Height
== 0 ||
687 baseImage
->Depth
== 0) {
688 incomplete(t
, BASE
, "texture width or height or depth = 0");
692 /* Check if the texture values are integer */
694 GLenum datatype
= _mesa_get_format_datatype(baseImage
->TexFormat
);
695 t
->_IsIntegerFormat
= datatype
== GL_INT
|| datatype
== GL_UNSIGNED_INT
;
698 /* Check if the texture type is Float or HalfFloatOES and ensure Min and Mag
699 * filters are supported in this case.
701 if (_mesa_is_gles(ctx
) && !valid_filter_for_float(ctx
, t
)) {
702 incomplete(t
, BASE
, "Filter is not supported with Float types.");
706 /* Compute _MaxLevel (the maximum mipmap level we'll sample from given the
707 * mipmap image sizes and GL_TEXTURE_MAX_LEVEL state).
711 case GL_TEXTURE_1D_ARRAY_EXT
:
712 maxLevels
= ctx
->Const
.MaxTextureLevels
;
715 case GL_TEXTURE_2D_ARRAY_EXT
:
716 maxLevels
= ctx
->Const
.MaxTextureLevels
;
719 maxLevels
= ctx
->Const
.Max3DTextureLevels
;
721 case GL_TEXTURE_CUBE_MAP
:
722 case GL_TEXTURE_CUBE_MAP_ARRAY
:
723 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
725 case GL_TEXTURE_RECTANGLE_NV
:
726 case GL_TEXTURE_BUFFER
:
727 case GL_TEXTURE_EXTERNAL_OES
:
728 case GL_TEXTURE_2D_MULTISAMPLE
:
729 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
730 maxLevels
= 1; /* no mipmapping */
733 _mesa_problem(ctx
, "Bad t->Target in _mesa_test_texobj_completeness");
737 assert(maxLevels
> 0);
739 t
->_MaxLevel
= MIN3(t
->MaxLevel
,
740 /* 'p' in the GL spec */
741 (int) (baseLevel
+ baseImage
->MaxNumLevels
- 1),
742 /* 'q' in the GL spec */
746 /* Adjust max level for views: the data store may have more levels than
749 t
->_MaxLevel
= MIN2(t
->_MaxLevel
, t
->NumLevels
- 1);
752 /* Compute _MaxLambda = q - p in the spec used during mipmapping */
753 t
->_MaxLambda
= (GLfloat
) (t
->_MaxLevel
- baseLevel
);
756 /* This texture object was created with glTexStorage1/2/3D() so we
757 * know that all the mipmap levels are the right size and all cube
758 * map faces are the same size.
759 * We don't need to do any of the additional checks below.
764 if (t
->Target
== GL_TEXTURE_CUBE_MAP
) {
765 /* Make sure that all six cube map level 0 images are the same size and
767 * Note: we know that the image's width==height (we enforce that
768 * at glTexImage time) so we only need to test the width here.
771 assert(baseImage
->Width2
== baseImage
->Height
);
772 for (face
= 1; face
< 6; face
++) {
773 assert(t
->Image
[face
][baseLevel
] == NULL
||
774 t
->Image
[face
][baseLevel
]->Width2
==
775 t
->Image
[face
][baseLevel
]->Height2
);
776 if (t
->Image
[face
][baseLevel
] == NULL
||
777 t
->Image
[face
][baseLevel
]->Width2
!= baseImage
->Width2
) {
778 incomplete(t
, BASE
, "Cube face missing or mismatched size");
781 if (t
->Image
[face
][baseLevel
]->InternalFormat
!=
782 baseImage
->InternalFormat
) {
783 incomplete(t
, BASE
, "Cube face format mismatch");
786 if (t
->Image
[face
][baseLevel
]->Border
!= baseImage
->Border
) {
787 incomplete(t
, BASE
, "Cube face border size mismatch");
794 * Do mipmap consistency checking.
795 * Note: we don't care about the current texture sampler state here.
796 * To determine texture completeness we'll either look at _BaseComplete
797 * or _MipmapComplete depending on the current minification filter mode.
801 const GLint minLevel
= baseLevel
;
802 const GLint maxLevel
= t
->_MaxLevel
;
803 const GLuint numFaces
= _mesa_num_tex_faces(t
->Target
);
804 GLuint width
, height
, depth
, face
;
806 if (minLevel
> maxLevel
) {
807 incomplete(t
, MIPMAP
, "minLevel > maxLevel");
811 /* Get the base image's dimensions */
812 width
= baseImage
->Width2
;
813 height
= baseImage
->Height2
;
814 depth
= baseImage
->Depth2
;
816 /* Note: this loop will be a no-op for RECT, BUFFER, EXTERNAL,
817 * MULTISAMPLE and MULTISAMPLE_ARRAY textures
819 for (i
= baseLevel
+ 1; i
< maxLevels
; i
++) {
820 /* Compute the expected size of image at level[i] */
824 if (height
> 1 && t
->Target
!= GL_TEXTURE_1D_ARRAY
) {
827 if (depth
> 1 && t
->Target
!= GL_TEXTURE_2D_ARRAY
828 && t
->Target
!= GL_TEXTURE_CUBE_MAP_ARRAY
) {
832 /* loop over cube faces (or single face otherwise) */
833 for (face
= 0; face
< numFaces
; face
++) {
834 if (i
>= minLevel
&& i
<= maxLevel
) {
835 const struct gl_texture_image
*img
= t
->Image
[face
][i
];
838 incomplete(t
, MIPMAP
, "TexImage[%d] is missing", i
);
841 if (img
->InternalFormat
!= baseImage
->InternalFormat
) {
842 incomplete(t
, MIPMAP
, "Format[i] != Format[baseLevel]");
845 if (img
->Border
!= baseImage
->Border
) {
846 incomplete(t
, MIPMAP
, "Border[i] != Border[baseLevel]");
849 if (img
->Width2
!= width
) {
850 incomplete(t
, MIPMAP
, "TexImage[%d] bad width %u", i
,
854 if (img
->Height2
!= height
) {
855 incomplete(t
, MIPMAP
, "TexImage[%d] bad height %u", i
,
859 if (img
->Depth2
!= depth
) {
860 incomplete(t
, MIPMAP
, "TexImage[%d] bad depth %u", i
,
867 if (width
== 1 && height
== 1 && depth
== 1) {
868 return; /* found smallest needed mipmap, all done! */
876 _mesa_cube_level_complete(const struct gl_texture_object
*texObj
,
879 const struct gl_texture_image
*img0
, *img
;
882 if (texObj
->Target
!= GL_TEXTURE_CUBE_MAP
)
885 if ((level
< 0) || (level
>= MAX_TEXTURE_LEVELS
))
888 /* check first face */
889 img0
= texObj
->Image
[0][level
];
892 img0
->Width
!= img0
->Height
)
895 /* check remaining faces vs. first face */
896 for (face
= 1; face
< 6; face
++) {
897 img
= texObj
->Image
[face
][level
];
899 img
->Width
!= img0
->Width
||
900 img
->Height
!= img0
->Height
||
901 img
->TexFormat
!= img0
->TexFormat
)
909 * Check if the given cube map texture is "cube complete" as defined in
910 * the OpenGL specification.
913 _mesa_cube_complete(const struct gl_texture_object
*texObj
)
915 return _mesa_cube_level_complete(texObj
, texObj
->BaseLevel
);
919 * Mark a texture object dirty. It forces the object to be incomplete
920 * and forces the context to re-validate its state.
922 * \param ctx GL context.
923 * \param texObj texture object.
926 _mesa_dirty_texobj(struct gl_context
*ctx
, struct gl_texture_object
*texObj
)
928 texObj
->_BaseComplete
= GL_FALSE
;
929 texObj
->_MipmapComplete
= GL_FALSE
;
930 ctx
->NewState
|= _NEW_TEXTURE_OBJECT
;
935 * Return pointer to a default/fallback texture of the given type/target.
936 * The texture is an RGBA texture with all texels = (0,0,0,1).
937 * That's the value a GLSL sampler should get when sampling from an
938 * incomplete texture.
940 struct gl_texture_object
*
941 _mesa_get_fallback_texture(struct gl_context
*ctx
, gl_texture_index tex
)
943 if (!ctx
->Shared
->FallbackTex
[tex
]) {
944 /* create fallback texture now */
945 const GLsizei width
= 1, height
= 1;
948 struct gl_texture_object
*texObj
;
949 struct gl_texture_image
*texImage
;
950 mesa_format texFormat
;
951 GLuint dims
, face
, numFaces
= 1;
954 for (face
= 0; face
< 6; face
++) {
957 texel
[4*face
+ 2] = 0x0;
958 texel
[4*face
+ 3] = 0xff;
962 case TEXTURE_2D_ARRAY_INDEX
:
964 target
= GL_TEXTURE_2D_ARRAY
;
966 case TEXTURE_1D_ARRAY_INDEX
:
968 target
= GL_TEXTURE_1D_ARRAY
;
970 case TEXTURE_CUBE_INDEX
:
972 target
= GL_TEXTURE_CUBE_MAP
;
975 case TEXTURE_3D_INDEX
:
977 target
= GL_TEXTURE_3D
;
979 case TEXTURE_RECT_INDEX
:
981 target
= GL_TEXTURE_RECTANGLE
;
983 case TEXTURE_2D_INDEX
:
985 target
= GL_TEXTURE_2D
;
987 case TEXTURE_1D_INDEX
:
989 target
= GL_TEXTURE_1D
;
991 case TEXTURE_BUFFER_INDEX
:
993 target
= GL_TEXTURE_BUFFER
;
995 case TEXTURE_CUBE_ARRAY_INDEX
:
997 target
= GL_TEXTURE_CUBE_MAP_ARRAY
;
1000 case TEXTURE_EXTERNAL_INDEX
:
1002 target
= GL_TEXTURE_EXTERNAL_OES
;
1004 case TEXTURE_2D_MULTISAMPLE_INDEX
:
1006 target
= GL_TEXTURE_2D_MULTISAMPLE
;
1008 case TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
:
1010 target
= GL_TEXTURE_2D_MULTISAMPLE_ARRAY
;
1017 /* create texture object */
1018 texObj
= ctx
->Driver
.NewTextureObject(ctx
, 0, target
);
1022 assert(texObj
->RefCount
== 1);
1023 texObj
->Sampler
.MinFilter
= GL_NEAREST
;
1024 texObj
->Sampler
.MagFilter
= GL_NEAREST
;
1026 texFormat
= ctx
->Driver
.ChooseTextureFormat(ctx
, target
,
1030 /* need a loop here just for cube maps */
1031 for (face
= 0; face
< numFaces
; face
++) {
1032 const GLenum faceTarget
= _mesa_cube_face_target(target
, face
);
1034 /* initialize level[0] texture image */
1035 texImage
= _mesa_get_tex_image(ctx
, texObj
, faceTarget
, 0);
1037 _mesa_init_teximage_fields(ctx
, texImage
,
1039 (dims
> 1) ? height
: 1,
1040 (dims
> 2) ? depth
: 1,
1042 GL_RGBA
, texFormat
);
1044 ctx
->Driver
.TexImage(ctx
, dims
, texImage
,
1045 GL_RGBA
, GL_UNSIGNED_BYTE
, texel
,
1046 &ctx
->DefaultPacking
);
1049 _mesa_test_texobj_completeness(ctx
, texObj
);
1050 assert(texObj
->_BaseComplete
);
1051 assert(texObj
->_MipmapComplete
);
1053 ctx
->Shared
->FallbackTex
[tex
] = texObj
;
1055 /* Complete the driver's operation in case another context will also
1056 * use the same fallback texture. */
1057 if (ctx
->Driver
.Finish
)
1058 ctx
->Driver
.Finish(ctx
);
1060 return ctx
->Shared
->FallbackTex
[tex
];
1065 * Compute the size of the given texture object, in bytes.
1068 texture_size(const struct gl_texture_object
*texObj
)
1070 const GLuint numFaces
= _mesa_num_tex_faces(texObj
->Target
);
1071 GLuint face
, level
, size
= 0;
1073 for (face
= 0; face
< numFaces
; face
++) {
1074 for (level
= 0; level
< MAX_TEXTURE_LEVELS
; level
++) {
1075 const struct gl_texture_image
*img
= texObj
->Image
[face
][level
];
1077 GLuint sz
= _mesa_format_image_size(img
->TexFormat
, img
->Width
,
1078 img
->Height
, img
->Depth
);
1089 * Callback called from _mesa_HashWalk()
1092 count_tex_size(GLuint key
, void *data
, void *userData
)
1094 const struct gl_texture_object
*texObj
=
1095 (const struct gl_texture_object
*) data
;
1096 GLuint
*total
= (GLuint
*) userData
;
1100 *total
= *total
+ texture_size(texObj
);
1105 * Compute total size (in bytes) of all textures for the given context.
1106 * For debugging purposes.
1109 _mesa_total_texture_memory(struct gl_context
*ctx
)
1111 GLuint tgt
, total
= 0;
1113 _mesa_HashWalk(ctx
->Shared
->TexObjects
, count_tex_size
, &total
);
1115 /* plus, the default texture objects */
1116 for (tgt
= 0; tgt
< NUM_TEXTURE_TARGETS
; tgt
++) {
1117 total
+= texture_size(ctx
->Shared
->DefaultTex
[tgt
]);
1125 * Return the base format for the given texture object by looking
1126 * at the base texture image.
1127 * \return base format (such as GL_RGBA) or GL_NONE if it can't be determined
1130 _mesa_texture_base_format(const struct gl_texture_object
*texObj
)
1132 const struct gl_texture_image
*texImage
= _mesa_base_tex_image(texObj
);
1134 return texImage
? texImage
->_BaseFormat
: GL_NONE
;
1138 static struct gl_texture_object
*
1139 invalidate_tex_image_error_check(struct gl_context
*ctx
, GLuint texture
,
1140 GLint level
, const char *name
)
1142 /* The GL_ARB_invalidate_subdata spec says:
1144 * "If <texture> is zero or is not the name of a texture, the error
1145 * INVALID_VALUE is generated."
1147 * This performs the error check in a different order than listed in the
1148 * spec. We have to get the texture object before we can validate the
1149 * other parameters against values in the texture object.
1151 struct gl_texture_object
*const t
= _mesa_lookup_texture(ctx
, texture
);
1152 if (texture
== 0 || t
== NULL
) {
1153 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(texture)", name
);
1157 /* The GL_ARB_invalidate_subdata spec says:
1159 * "If <level> is less than zero or greater than the base 2 logarithm
1160 * of the maximum texture width, height, or depth, the error
1161 * INVALID_VALUE is generated."
1163 if (level
< 0 || level
> t
->MaxLevel
) {
1164 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level)", name
);
1168 /* The GL_ARB_invalidate_subdata spec says:
1170 * "If the target of <texture> is TEXTURE_RECTANGLE, TEXTURE_BUFFER,
1171 * TEXTURE_2D_MULTISAMPLE, or TEXTURE_2D_MULTISAMPLE_ARRAY, and <level>
1172 * is not zero, the error INVALID_VALUE is generated."
1175 switch (t
->Target
) {
1176 case GL_TEXTURE_RECTANGLE
:
1177 case GL_TEXTURE_BUFFER
:
1178 case GL_TEXTURE_2D_MULTISAMPLE
:
1179 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1180 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level)", name
);
1193 * Helper function for glCreateTextures and glGenTextures. Need this because
1194 * glCreateTextures should throw errors if target = 0. This is not exposed to
1195 * the rest of Mesa to encourage Mesa internals to use nameless textures,
1196 * which do not require expensive hash lookups.
1197 * \param target either 0 or a valid / error-checked texture target enum
1200 create_textures(struct gl_context
*ctx
, GLenum target
,
1201 GLsizei n
, GLuint
*textures
, const char *caller
)
1210 * This must be atomic (generation and allocation of texture IDs)
1212 _mesa_HashLockMutex(ctx
->Shared
->TexObjects
);
1214 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->TexObjects
, n
);
1216 /* Allocate new, empty texture objects */
1217 for (i
= 0; i
< n
; i
++) {
1218 struct gl_texture_object
*texObj
;
1219 GLuint name
= first
+ i
;
1220 texObj
= ctx
->Driver
.NewTextureObject(ctx
, name
, target
);
1222 _mesa_HashUnlockMutex(ctx
->Shared
->TexObjects
);
1223 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", caller
);
1227 /* insert into hash table */
1228 _mesa_HashInsertLocked(ctx
->Shared
->TexObjects
, texObj
->Name
, texObj
);
1233 _mesa_HashUnlockMutex(ctx
->Shared
->TexObjects
);
1238 create_textures_err(struct gl_context
*ctx
, GLenum target
,
1239 GLsizei n
, GLuint
*textures
, const char *caller
)
1241 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1242 _mesa_debug(ctx
, "%s %d\n", caller
, n
);
1245 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n < 0)", caller
);
1249 create_textures(ctx
, target
, n
, textures
, caller
);
1255 /***********************************************************************/
1256 /** \name API functions */
1261 * Generate texture names.
1263 * \param n number of texture names to be generated.
1264 * \param textures an array in which will hold the generated texture names.
1266 * \sa glGenTextures(), glCreateTextures().
1268 * Calls _mesa_HashFindFreeKeyBlock() to find a block of free texture
1269 * IDs which are stored in \p textures. Corresponding empty texture
1270 * objects are also generated.
1273 _mesa_GenTextures_no_error(GLsizei n
, GLuint
*textures
)
1275 GET_CURRENT_CONTEXT(ctx
);
1276 create_textures(ctx
, 0, n
, textures
, "glGenTextures");
1281 _mesa_GenTextures(GLsizei n
, GLuint
*textures
)
1283 GET_CURRENT_CONTEXT(ctx
);
1284 create_textures_err(ctx
, 0, n
, textures
, "glGenTextures");
1288 * Create texture objects.
1290 * \param target the texture target for each name to be generated.
1291 * \param n number of texture names to be generated.
1292 * \param textures an array in which will hold the generated texture names.
1294 * \sa glCreateTextures(), glGenTextures().
1296 * Calls _mesa_HashFindFreeKeyBlock() to find a block of free texture
1297 * IDs which are stored in \p textures. Corresponding empty texture
1298 * objects are also generated.
1301 _mesa_CreateTextures_no_error(GLenum target
, GLsizei n
, GLuint
*textures
)
1303 GET_CURRENT_CONTEXT(ctx
);
1304 create_textures(ctx
, target
, n
, textures
, "glCreateTextures");
1309 _mesa_CreateTextures(GLenum target
, GLsizei n
, GLuint
*textures
)
1312 GET_CURRENT_CONTEXT(ctx
);
1315 * The 4.5 core profile spec (30.10.2014) doesn't specify what
1316 * glCreateTextures should do with invalid targets, which was probably an
1317 * oversight. This conforms to the spec for glBindTexture.
1319 targetIndex
= _mesa_tex_target_to_index(ctx
, target
);
1320 if (targetIndex
< 0) {
1321 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCreateTextures(target)");
1325 create_textures_err(ctx
, target
, n
, textures
, "glCreateTextures");
1329 * Check if the given texture object is bound to the current draw or
1330 * read framebuffer. If so, Unbind it.
1333 unbind_texobj_from_fbo(struct gl_context
*ctx
,
1334 struct gl_texture_object
*texObj
)
1336 bool progress
= false;
1338 /* Section 4.4.2 (Attaching Images to Framebuffer Objects), subsection
1339 * "Attaching Texture Images to a Framebuffer," of the OpenGL 3.1 spec
1342 * "If a texture object is deleted while its image is attached to one
1343 * or more attachment points in the currently bound framebuffer, then
1344 * it is as if FramebufferTexture* had been called, with a texture of
1345 * zero, for each attachment point to which this image was attached in
1346 * the currently bound framebuffer. In other words, this texture image
1347 * is first detached from all attachment points in the currently bound
1348 * framebuffer. Note that the texture image is specifically not
1349 * detached from any other framebuffer objects. Detaching the texture
1350 * image from any other framebuffer objects is the responsibility of
1353 if (_mesa_is_user_fbo(ctx
->DrawBuffer
)) {
1354 progress
= _mesa_detach_renderbuffer(ctx
, ctx
->DrawBuffer
, texObj
);
1356 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)
1357 && ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
1358 progress
= _mesa_detach_renderbuffer(ctx
, ctx
->ReadBuffer
, texObj
)
1363 /* Vertices are already flushed by _mesa_DeleteTextures */
1364 ctx
->NewState
|= _NEW_BUFFERS
;
1369 * Check if the given texture object is bound to any texture image units and
1370 * unbind it if so (revert to default textures).
1373 unbind_texobj_from_texunits(struct gl_context
*ctx
,
1374 struct gl_texture_object
*texObj
)
1376 const gl_texture_index index
= texObj
->TargetIndex
;
1379 if (texObj
->Target
== 0) {
1380 /* texture was never bound */
1384 assert(index
< NUM_TEXTURE_TARGETS
);
1386 for (u
= 0; u
< ctx
->Texture
.NumCurrentTexUsed
; u
++) {
1387 struct gl_texture_unit
*unit
= &ctx
->Texture
.Unit
[u
];
1389 if (texObj
== unit
->CurrentTex
[index
]) {
1390 /* Bind the default texture for this unit/target */
1391 _mesa_reference_texobj(&unit
->CurrentTex
[index
],
1392 ctx
->Shared
->DefaultTex
[index
]);
1393 unit
->_BoundTextures
&= ~(1 << index
);
1400 * Check if the given texture object is bound to any shader image unit
1401 * and unbind it if that's the case.
1404 unbind_texobj_from_image_units(struct gl_context
*ctx
,
1405 struct gl_texture_object
*texObj
)
1409 for (i
= 0; i
< ctx
->Const
.MaxImageUnits
; i
++) {
1410 struct gl_image_unit
*unit
= &ctx
->ImageUnits
[i
];
1412 if (texObj
== unit
->TexObj
) {
1413 _mesa_reference_texobj(&unit
->TexObj
, NULL
);
1414 *unit
= _mesa_default_image_unit(ctx
);
1421 * Unbinds all textures bound to the given texture image unit.
1424 unbind_textures_from_unit(struct gl_context
*ctx
, GLuint unit
)
1426 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[unit
];
1428 while (texUnit
->_BoundTextures
) {
1429 const GLuint index
= ffs(texUnit
->_BoundTextures
) - 1;
1430 struct gl_texture_object
*texObj
= ctx
->Shared
->DefaultTex
[index
];
1432 _mesa_reference_texobj(&texUnit
->CurrentTex
[index
], texObj
);
1434 /* Pass BindTexture call to device driver */
1435 if (ctx
->Driver
.BindTexture
)
1436 ctx
->Driver
.BindTexture(ctx
, unit
, 0, texObj
);
1438 texUnit
->_BoundTextures
&= ~(1 << index
);
1439 ctx
->NewState
|= _NEW_TEXTURE_OBJECT
;
1445 * Delete named textures.
1447 * \param n number of textures to be deleted.
1448 * \param textures array of texture IDs to be deleted.
1450 * \sa glDeleteTextures().
1452 * If we're about to delete a texture that's currently bound to any
1453 * texture unit, unbind the texture first. Decrement the reference
1454 * count on the texture object and delete it if it's zero.
1455 * Recall that texture objects can be shared among several rendering
1459 delete_textures(struct gl_context
*ctx
, GLsizei n
, const GLuint
*textures
)
1461 FLUSH_VERTICES(ctx
, 0); /* too complex */
1466 for (GLsizei i
= 0; i
< n
; i
++) {
1467 if (textures
[i
] > 0) {
1468 struct gl_texture_object
*delObj
1469 = _mesa_lookup_texture(ctx
, textures
[i
]);
1472 _mesa_lock_texture(ctx
, delObj
);
1474 /* Check if texture is bound to any framebuffer objects.
1476 * See section 4.4.2.3 of GL_EXT_framebuffer_object.
1478 unbind_texobj_from_fbo(ctx
, delObj
);
1480 /* Check if this texture is currently bound to any texture units.
1483 unbind_texobj_from_texunits(ctx
, delObj
);
1485 /* Check if this texture is currently bound to any shader
1486 * image unit. If so, unbind it.
1487 * See section 3.9.X of GL_ARB_shader_image_load_store.
1489 unbind_texobj_from_image_units(ctx
, delObj
);
1491 /* Make all handles that reference this texture object non-resident
1492 * in the current context.
1494 _mesa_make_texture_handles_non_resident(ctx
, delObj
);
1496 _mesa_unlock_texture(ctx
, delObj
);
1498 ctx
->NewState
|= _NEW_TEXTURE_OBJECT
;
1500 /* The texture _name_ is now free for re-use.
1501 * Remove it from the hash table now.
1503 _mesa_HashRemove(ctx
->Shared
->TexObjects
, delObj
->Name
);
1505 /* Unreference the texobj. If refcount hits zero, the texture
1508 _mesa_reference_texobj(&delObj
, NULL
);
1515 * This deletes a texObj without altering the hash table.
1518 _mesa_delete_nameless_texture(struct gl_context
*ctx
,
1519 struct gl_texture_object
*texObj
)
1524 FLUSH_VERTICES(ctx
, 0);
1526 _mesa_lock_texture(ctx
, texObj
);
1528 /* Check if texture is bound to any framebuffer objects.
1530 * See section 4.4.2.3 of GL_EXT_framebuffer_object.
1532 unbind_texobj_from_fbo(ctx
, texObj
);
1534 /* Check if this texture is currently bound to any texture units.
1537 unbind_texobj_from_texunits(ctx
, texObj
);
1539 /* Check if this texture is currently bound to any shader
1540 * image unit. If so, unbind it.
1541 * See section 3.9.X of GL_ARB_shader_image_load_store.
1543 unbind_texobj_from_image_units(ctx
, texObj
);
1545 _mesa_unlock_texture(ctx
, texObj
);
1547 ctx
->NewState
|= _NEW_TEXTURE_OBJECT
;
1549 /* Unreference the texobj. If refcount hits zero, the texture
1552 _mesa_reference_texobj(&texObj
, NULL
);
1557 _mesa_DeleteTextures_no_error(GLsizei n
, const GLuint
*textures
)
1559 GET_CURRENT_CONTEXT(ctx
);
1560 delete_textures(ctx
, n
, textures
);
1565 _mesa_DeleteTextures(GLsizei n
, const GLuint
*textures
)
1567 GET_CURRENT_CONTEXT(ctx
);
1569 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1570 _mesa_debug(ctx
, "glDeleteTextures %d\n", n
);
1573 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteTextures(n < 0)");
1577 delete_textures(ctx
, n
, textures
);
1582 * Convert a GL texture target enum such as GL_TEXTURE_2D or GL_TEXTURE_3D
1583 * into the corresponding Mesa texture target index.
1584 * Note that proxy targets are not valid here.
1585 * \return TEXTURE_x_INDEX or -1 if target is invalid
1588 _mesa_tex_target_to_index(const struct gl_context
*ctx
, GLenum target
)
1592 return _mesa_is_desktop_gl(ctx
) ? TEXTURE_1D_INDEX
: -1;
1594 return TEXTURE_2D_INDEX
;
1596 return ctx
->API
!= API_OPENGLES
? TEXTURE_3D_INDEX
: -1;
1597 case GL_TEXTURE_CUBE_MAP
:
1598 return ctx
->Extensions
.ARB_texture_cube_map
1599 ? TEXTURE_CUBE_INDEX
: -1;
1600 case GL_TEXTURE_RECTANGLE
:
1601 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.NV_texture_rectangle
1602 ? TEXTURE_RECT_INDEX
: -1;
1603 case GL_TEXTURE_1D_ARRAY
:
1604 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
1605 ? TEXTURE_1D_ARRAY_INDEX
: -1;
1606 case GL_TEXTURE_2D_ARRAY
:
1607 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1608 || _mesa_is_gles3(ctx
)
1609 ? TEXTURE_2D_ARRAY_INDEX
: -1;
1610 case GL_TEXTURE_BUFFER
:
1611 return (_mesa_has_ARB_texture_buffer_object(ctx
) ||
1612 _mesa_has_OES_texture_buffer(ctx
)) ?
1613 TEXTURE_BUFFER_INDEX
: -1;
1614 case GL_TEXTURE_EXTERNAL_OES
:
1615 return _mesa_is_gles(ctx
) && ctx
->Extensions
.OES_EGL_image_external
1616 ? TEXTURE_EXTERNAL_INDEX
: -1;
1617 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1618 return _mesa_has_texture_cube_map_array(ctx
)
1619 ? TEXTURE_CUBE_ARRAY_INDEX
: -1;
1620 case GL_TEXTURE_2D_MULTISAMPLE
:
1621 return ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
) ||
1622 _mesa_is_gles31(ctx
)) ? TEXTURE_2D_MULTISAMPLE_INDEX
: -1;
1623 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1624 return ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
) ||
1625 _mesa_is_gles31(ctx
))
1626 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
: -1;
1634 * Do actual texture binding. All error checking should have been done prior
1635 * to calling this function. Note that the texture target (1D, 2D, etc) is
1636 * always specified by the texObj->TargetIndex.
1638 * \param unit index of texture unit to update
1639 * \param texObj the new texture object (cannot be NULL)
1642 bind_texture_object(struct gl_context
*ctx
, unsigned unit
,
1643 struct gl_texture_object
*texObj
)
1645 struct gl_texture_unit
*texUnit
;
1648 assert(unit
< ARRAY_SIZE(ctx
->Texture
.Unit
));
1649 texUnit
= &ctx
->Texture
.Unit
[unit
];
1652 assert(valid_texture_object(texObj
));
1654 targetIndex
= texObj
->TargetIndex
;
1655 assert(targetIndex
>= 0);
1656 assert(targetIndex
< NUM_TEXTURE_TARGETS
);
1658 /* Check if this texture is only used by this context and is already bound.
1659 * If so, just return. For GL_OES_image_external, rebinding the texture
1660 * always must invalidate cached resources.
1662 if (targetIndex
!= TEXTURE_EXTERNAL_INDEX
) {
1664 simple_mtx_lock(&ctx
->Shared
->Mutex
);
1665 early_out
= ((ctx
->Shared
->RefCount
== 1)
1666 && (texObj
== texUnit
->CurrentTex
[targetIndex
]));
1667 simple_mtx_unlock(&ctx
->Shared
->Mutex
);
1673 /* flush before changing binding */
1674 FLUSH_VERTICES(ctx
, _NEW_TEXTURE_OBJECT
);
1676 /* If the refcount on the previously bound texture is decremented to
1677 * zero, it'll be deleted here.
1679 _mesa_reference_texobj(&texUnit
->CurrentTex
[targetIndex
], texObj
);
1681 ctx
->Texture
.NumCurrentTexUsed
= MAX2(ctx
->Texture
.NumCurrentTexUsed
,
1684 if (texObj
->Name
!= 0)
1685 texUnit
->_BoundTextures
|= (1 << targetIndex
);
1687 texUnit
->_BoundTextures
&= ~(1 << targetIndex
);
1689 /* Pass BindTexture call to device driver */
1690 if (ctx
->Driver
.BindTexture
) {
1691 ctx
->Driver
.BindTexture(ctx
, unit
, texObj
->Target
, texObj
);
1696 * Light-weight bind texture for internal users
1698 * This is really just \c finish_texture_init plus \c bind_texture_object.
1699 * This is intended to be used by internal Mesa functions that use
1700 * \c _mesa_CreateTexture and need to bind textures (e.g., meta).
1703 _mesa_bind_texture(struct gl_context
*ctx
, GLenum target
,
1704 struct gl_texture_object
*tex_obj
)
1706 const GLint targetIndex
= _mesa_tex_target_to_index(ctx
, target
);
1708 assert(targetIndex
>= 0 && targetIndex
< NUM_TEXTURE_TARGETS
);
1710 if (tex_obj
->Target
== 0)
1711 finish_texture_init(ctx
, target
, tex_obj
, targetIndex
);
1713 assert(tex_obj
->Target
== target
);
1714 assert(tex_obj
->TargetIndex
== targetIndex
);
1716 bind_texture_object(ctx
, ctx
->Texture
.CurrentUnit
, tex_obj
);
1720 * Implement glBindTexture(). Do error checking, look-up or create a new
1721 * texture object, then bind it in the current texture unit.
1723 * \param target texture target.
1724 * \param texName texture name.
1726 static ALWAYS_INLINE
void
1727 bind_texture(struct gl_context
*ctx
, GLenum target
, GLuint texName
,
1730 struct gl_texture_object
*newTexObj
= NULL
;
1733 targetIndex
= _mesa_tex_target_to_index(ctx
, target
);
1734 if (!no_error
&& targetIndex
< 0) {
1735 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindTexture(target = %s)",
1736 _mesa_enum_to_string(target
));
1739 assert(targetIndex
< NUM_TEXTURE_TARGETS
);
1742 * Get pointer to new texture object (newTexObj)
1745 /* Use a default texture object */
1746 newTexObj
= ctx
->Shared
->DefaultTex
[targetIndex
];
1748 /* non-default texture object */
1749 newTexObj
= _mesa_lookup_texture(ctx
, texName
);
1751 /* error checking */
1753 newTexObj
->Target
!= 0 && newTexObj
->Target
!= target
) {
1754 /* The named texture object's target doesn't match the
1757 _mesa_error( ctx
, GL_INVALID_OPERATION
,
1758 "glBindTexture(target mismatch)" );
1761 if (newTexObj
->Target
== 0) {
1762 finish_texture_init(ctx
, target
, newTexObj
, targetIndex
);
1766 if (!no_error
&& ctx
->API
== API_OPENGL_CORE
) {
1767 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1768 "glBindTexture(non-gen name)");
1772 /* if this is a new texture id, allocate a texture object now */
1773 newTexObj
= ctx
->Driver
.NewTextureObject(ctx
, texName
, target
);
1775 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindTexture");
1779 /* and insert it into hash table */
1780 _mesa_HashInsert(ctx
->Shared
->TexObjects
, texName
, newTexObj
);
1784 assert(newTexObj
->Target
== target
);
1785 assert(newTexObj
->TargetIndex
== targetIndex
);
1787 bind_texture_object(ctx
, ctx
->Texture
.CurrentUnit
, newTexObj
);
1791 _mesa_BindTexture_no_error(GLenum target
, GLuint texName
)
1793 GET_CURRENT_CONTEXT(ctx
);
1794 bind_texture(ctx
, target
, texName
, true);
1799 _mesa_BindTexture(GLenum target
, GLuint texName
)
1801 GET_CURRENT_CONTEXT(ctx
);
1803 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1804 _mesa_debug(ctx
, "glBindTexture %s %d\n",
1805 _mesa_enum_to_string(target
), (GLint
) texName
);
1807 bind_texture(ctx
, target
, texName
, false);
1812 * OpenGL 4.5 / GL_ARB_direct_state_access glBindTextureUnit().
1814 * \param unit texture unit.
1815 * \param texture texture name.
1817 * \sa glBindTexture().
1819 * If the named texture is 0, this will reset each target for the specified
1820 * texture unit to its default texture.
1821 * If the named texture is not 0 or a recognized texture name, this throws
1822 * GL_INVALID_OPERATION.
1824 static ALWAYS_INLINE
void
1825 bind_texture_unit(struct gl_context
*ctx
, GLuint unit
, GLuint texture
,
1828 struct gl_texture_object
*texObj
;
1830 /* Section 8.1 (Texture Objects) of the OpenGL 4.5 core profile spec
1832 * "When texture is zero, each of the targets enumerated at the
1833 * beginning of this section is reset to its default texture for the
1834 * corresponding texture image unit."
1837 unbind_textures_from_unit(ctx
, unit
);
1841 /* Get the non-default texture object */
1842 texObj
= _mesa_lookup_texture(ctx
, texture
);
1844 /* Error checking */
1846 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1847 "glBindTextureUnit(non-gen name)");
1851 if (texObj
->Target
== 0) {
1852 /* Texture object was gen'd but never bound so the target is not set */
1853 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindTextureUnit(target)");
1858 assert(valid_texture_object(texObj
));
1860 bind_texture_object(ctx
, unit
, texObj
);
1865 _mesa_BindTextureUnit_no_error(GLuint unit
, GLuint texture
)
1867 GET_CURRENT_CONTEXT(ctx
);
1868 bind_texture_unit(ctx
, unit
, texture
, true);
1873 _mesa_BindTextureUnit(GLuint unit
, GLuint texture
)
1875 GET_CURRENT_CONTEXT(ctx
);
1877 if (unit
>= _mesa_max_tex_unit(ctx
)) {
1878 _mesa_error(ctx
, GL_INVALID_VALUE
, "glBindTextureUnit(unit=%u)", unit
);
1882 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1883 _mesa_debug(ctx
, "glBindTextureUnit %s %d\n",
1884 _mesa_enum_to_string(GL_TEXTURE0
+unit
), (GLint
) texture
);
1886 bind_texture_unit(ctx
, unit
, texture
, false);
1891 * OpenGL 4.4 / GL_ARB_multi_bind glBindTextures().
1893 static ALWAYS_INLINE
void
1894 bind_textures(struct gl_context
*ctx
, GLuint first
, GLsizei count
,
1895 const GLuint
*textures
, bool no_error
)
1900 /* Note that the error semantics for multi-bind commands differ from
1901 * those of other GL commands.
1903 * The issues section in the ARB_multi_bind spec says:
1905 * "(11) Typically, OpenGL specifies that if an error is generated by
1906 * a command, that command has no effect. This is somewhat
1907 * unfortunate for multi-bind commands, because it would require
1908 * a first pass to scan the entire list of bound objects for
1909 * errors and then a second pass to actually perform the
1910 * bindings. Should we have different error semantics?
1912 * RESOLVED: Yes. In this specification, when the parameters for
1913 * one of the <count> binding points are invalid, that binding
1914 * point is not updated and an error will be generated. However,
1915 * other binding points in the same command will be updated if
1916 * their parameters are valid and no other error occurs."
1919 _mesa_HashLockMutex(ctx
->Shared
->TexObjects
);
1921 for (i
= 0; i
< count
; i
++) {
1922 if (textures
[i
] != 0) {
1923 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[first
+ i
];
1924 struct gl_texture_object
*current
= texUnit
->_Current
;
1925 struct gl_texture_object
*texObj
;
1927 if (current
&& current
->Name
== textures
[i
])
1930 texObj
= _mesa_lookup_texture_locked(ctx
, textures
[i
]);
1932 if (texObj
&& texObj
->Target
!= 0) {
1933 bind_texture_object(ctx
, first
+ i
, texObj
);
1934 } else if (!no_error
) {
1935 /* The ARB_multi_bind spec says:
1937 * "An INVALID_OPERATION error is generated if any value
1938 * in <textures> is not zero or the name of an existing
1939 * texture object (per binding)."
1941 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1942 "glBindTextures(textures[%d]=%u is not zero "
1943 "or the name of an existing texture object)",
1947 unbind_textures_from_unit(ctx
, first
+ i
);
1951 _mesa_HashUnlockMutex(ctx
->Shared
->TexObjects
);
1953 /* Unbind all textures in the range <first> through <first>+<count>-1 */
1954 for (i
= 0; i
< count
; i
++)
1955 unbind_textures_from_unit(ctx
, first
+ i
);
1961 _mesa_BindTextures_no_error(GLuint first
, GLsizei count
, const GLuint
*textures
)
1963 GET_CURRENT_CONTEXT(ctx
);
1964 bind_textures(ctx
, first
, count
, textures
, true);
1969 _mesa_BindTextures(GLuint first
, GLsizei count
, const GLuint
*textures
)
1971 GET_CURRENT_CONTEXT(ctx
);
1973 /* The ARB_multi_bind spec says:
1975 * "An INVALID_OPERATION error is generated if <first> + <count>
1976 * is greater than the number of texture image units supported
1977 * by the implementation."
1979 if (first
+ count
> ctx
->Const
.MaxCombinedTextureImageUnits
) {
1980 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1981 "glBindTextures(first=%u + count=%d > the value of "
1982 "GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS=%u)",
1983 first
, count
, ctx
->Const
.MaxCombinedTextureImageUnits
);
1987 bind_textures(ctx
, first
, count
, textures
, false);
1992 * Set texture priorities.
1994 * \param n number of textures.
1995 * \param texName texture names.
1996 * \param priorities corresponding texture priorities.
1998 * \sa glPrioritizeTextures().
2000 * Looks up each texture in the hash, clamps the corresponding priority between
2001 * 0.0 and 1.0, and calls dd_function_table::PrioritizeTexture.
2004 _mesa_PrioritizeTextures( GLsizei n
, const GLuint
*texName
,
2005 const GLclampf
*priorities
)
2007 GET_CURRENT_CONTEXT(ctx
);
2010 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2011 _mesa_debug(ctx
, "glPrioritizeTextures %d\n", n
);
2013 FLUSH_VERTICES(ctx
, 0);
2016 _mesa_error( ctx
, GL_INVALID_VALUE
, "glPrioritizeTextures" );
2023 for (i
= 0; i
< n
; i
++) {
2024 if (texName
[i
] > 0) {
2025 struct gl_texture_object
*t
= _mesa_lookup_texture(ctx
, texName
[i
]);
2027 t
->Priority
= CLAMP( priorities
[i
], 0.0F
, 1.0F
);
2032 ctx
->NewState
|= _NEW_TEXTURE_OBJECT
;
2038 * See if textures are loaded in texture memory.
2040 * \param n number of textures to query.
2041 * \param texName array with the texture names.
2042 * \param residences array which will hold the residence status.
2044 * \return GL_TRUE if all textures are resident and
2045 * residences is left unchanged,
2047 * Note: we assume all textures are always resident
2049 GLboolean GLAPIENTRY
2050 _mesa_AreTexturesResident(GLsizei n
, const GLuint
*texName
,
2051 GLboolean
*residences
)
2053 GET_CURRENT_CONTEXT(ctx
);
2054 GLboolean allResident
= GL_TRUE
;
2056 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
2058 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2059 _mesa_debug(ctx
, "glAreTexturesResident %d\n", n
);
2062 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident(n)");
2066 if (!texName
|| !residences
)
2069 /* We only do error checking on the texture names */
2070 for (i
= 0; i
< n
; i
++) {
2071 struct gl_texture_object
*t
;
2072 if (texName
[i
] == 0) {
2073 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident");
2076 t
= _mesa_lookup_texture(ctx
, texName
[i
]);
2078 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident");
2088 * See if a name corresponds to a texture.
2090 * \param texture texture name.
2092 * \return GL_TRUE if texture name corresponds to a texture, or GL_FALSE
2095 * \sa glIsTexture().
2097 * Calls _mesa_HashLookup().
2099 GLboolean GLAPIENTRY
2100 _mesa_IsTexture( GLuint texture
)
2102 struct gl_texture_object
*t
;
2103 GET_CURRENT_CONTEXT(ctx
);
2104 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
2106 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2107 _mesa_debug(ctx
, "glIsTexture %d\n", texture
);
2112 t
= _mesa_lookup_texture(ctx
, texture
);
2114 /* IsTexture is true only after object has been bound once. */
2115 return t
&& t
->Target
;
2120 * Simplest implementation of texture locking: grab the shared tex
2121 * mutex. Examine the shared context state timestamp and if there has
2122 * been a change, set the appropriate bits in ctx->NewState.
2124 * This is used to deal with synchronizing things when a texture object
2125 * is used/modified by different contexts (or threads) which are sharing
2128 * See also _mesa_lock/unlock_texture() in teximage.h
2131 _mesa_lock_context_textures( struct gl_context
*ctx
)
2133 mtx_lock(&ctx
->Shared
->TexMutex
);
2135 if (ctx
->Shared
->TextureStateStamp
!= ctx
->TextureStateTimestamp
) {
2136 ctx
->NewState
|= _NEW_TEXTURE_OBJECT
;
2137 ctx
->TextureStateTimestamp
= ctx
->Shared
->TextureStateStamp
;
2143 _mesa_unlock_context_textures( struct gl_context
*ctx
)
2145 assert(ctx
->Shared
->TextureStateStamp
== ctx
->TextureStateTimestamp
);
2146 mtx_unlock(&ctx
->Shared
->TexMutex
);
2151 _mesa_InvalidateTexSubImage_no_error(GLuint texture
, GLint level
, GLint xoffset
,
2152 GLint yoffset
, GLint zoffset
,
2153 GLsizei width
, GLsizei height
,
2161 _mesa_InvalidateTexSubImage(GLuint texture
, GLint level
, GLint xoffset
,
2162 GLint yoffset
, GLint zoffset
, GLsizei width
,
2163 GLsizei height
, GLsizei depth
)
2165 struct gl_texture_object
*t
;
2166 struct gl_texture_image
*image
;
2167 GET_CURRENT_CONTEXT(ctx
);
2169 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2170 _mesa_debug(ctx
, "glInvalidateTexSubImage %d\n", texture
);
2172 t
= invalidate_tex_image_error_check(ctx
, texture
, level
,
2173 "glInvalidateTexSubImage");
2175 /* The GL_ARB_invalidate_subdata spec says:
2177 * "...the specified subregion must be between -<b> and <dim>+<b> where
2178 * <dim> is the size of the dimension of the texture image, and <b> is
2179 * the size of the border of that texture image, otherwise
2180 * INVALID_VALUE is generated (border is not applied to dimensions that
2181 * don't exist in a given texture target)."
2183 image
= t
->Image
[0][level
];
2192 /* The GL_ARB_invalidate_subdata spec says:
2194 * "For texture targets that don't have certain dimensions, this
2195 * command treats those dimensions as having a size of 1. For
2196 * example, to invalidate a portion of a two-dimensional texture,
2197 * the application would use <zoffset> equal to zero and <depth>
2200 switch (t
->Target
) {
2201 case GL_TEXTURE_BUFFER
:
2210 xBorder
= image
->Border
;
2213 imageWidth
= image
->Width
;
2217 case GL_TEXTURE_1D_ARRAY
:
2218 xBorder
= image
->Border
;
2221 imageWidth
= image
->Width
;
2222 imageHeight
= image
->Height
;
2226 case GL_TEXTURE_CUBE_MAP
:
2227 case GL_TEXTURE_RECTANGLE
:
2228 case GL_TEXTURE_2D_MULTISAMPLE
:
2229 xBorder
= image
->Border
;
2230 yBorder
= image
->Border
;
2232 imageWidth
= image
->Width
;
2233 imageHeight
= image
->Height
;
2236 case GL_TEXTURE_2D_ARRAY
:
2237 case GL_TEXTURE_CUBE_MAP_ARRAY
:
2238 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
2239 xBorder
= image
->Border
;
2240 yBorder
= image
->Border
;
2242 imageWidth
= image
->Width
;
2243 imageHeight
= image
->Height
;
2244 imageDepth
= image
->Depth
;
2247 xBorder
= image
->Border
;
2248 yBorder
= image
->Border
;
2249 zBorder
= image
->Border
;
2250 imageWidth
= image
->Width
;
2251 imageHeight
= image
->Height
;
2252 imageDepth
= image
->Depth
;
2255 assert(!"Should not get here.");
2265 if (xoffset
< -xBorder
) {
2266 _mesa_error(ctx
, GL_INVALID_VALUE
, "glInvalidateSubTexImage(xoffset)");
2270 if (xoffset
+ width
> imageWidth
+ xBorder
) {
2271 _mesa_error(ctx
, GL_INVALID_VALUE
,
2272 "glInvalidateSubTexImage(xoffset+width)");
2276 if (yoffset
< -yBorder
) {
2277 _mesa_error(ctx
, GL_INVALID_VALUE
, "glInvalidateSubTexImage(yoffset)");
2281 if (yoffset
+ height
> imageHeight
+ yBorder
) {
2282 _mesa_error(ctx
, GL_INVALID_VALUE
,
2283 "glInvalidateSubTexImage(yoffset+height)");
2287 if (zoffset
< -zBorder
) {
2288 _mesa_error(ctx
, GL_INVALID_VALUE
,
2289 "glInvalidateSubTexImage(zoffset)");
2293 if (zoffset
+ depth
> imageDepth
+ zBorder
) {
2294 _mesa_error(ctx
, GL_INVALID_VALUE
,
2295 "glInvalidateSubTexImage(zoffset+depth)");
2300 /* We don't actually do anything for this yet. Just return after
2301 * validating the parameters and generating the required errors.
2308 _mesa_InvalidateTexImage_no_error(GLuint texture
, GLint level
)
2315 _mesa_InvalidateTexImage(GLuint texture
, GLint level
)
2317 GET_CURRENT_CONTEXT(ctx
);
2319 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2320 _mesa_debug(ctx
, "glInvalidateTexImage(%d, %d)\n", texture
, level
);
2322 invalidate_tex_image_error_check(ctx
, texture
, level
,
2323 "glInvalidateTexImage");
2325 /* We don't actually do anything for this yet. Just return after
2326 * validating the parameters and generating the required errors.