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"
45 #include "program/prog_instruction.h"
49 /**********************************************************************/
50 /** \name Internal functions */
54 * This function checks for all valid combinations of Min and Mag filters for
55 * Float types, when extensions like OES_texture_float and
56 * OES_texture_float_linear are supported. OES_texture_float mentions support
57 * for NEAREST, NEAREST_MIPMAP_NEAREST magnification and minification filters.
58 * Mag filters like LINEAR and min filters like NEAREST_MIPMAP_LINEAR,
59 * LINEAR_MIPMAP_NEAREST and LINEAR_MIPMAP_LINEAR are only valid in case
60 * OES_texture_float_linear is supported.
62 * Returns true in case the filter is valid for given Float type else false.
65 valid_filter_for_float(const struct gl_context
*ctx
,
66 const struct gl_texture_object
*obj
)
68 switch (obj
->Sampler
.MagFilter
) {
70 if (obj
->_IsHalfFloat
&& !ctx
->Extensions
.OES_texture_half_float_linear
) {
72 } else if (obj
->_IsFloat
&& !ctx
->Extensions
.OES_texture_float_linear
) {
76 case GL_NEAREST_MIPMAP_NEAREST
:
79 unreachable("Invalid mag filter");
82 switch (obj
->Sampler
.MinFilter
) {
84 case GL_NEAREST_MIPMAP_LINEAR
:
85 case GL_LINEAR_MIPMAP_NEAREST
:
86 case GL_LINEAR_MIPMAP_LINEAR
:
87 if (obj
->_IsHalfFloat
&& !ctx
->Extensions
.OES_texture_half_float_linear
) {
89 } else if (obj
->_IsFloat
&& !ctx
->Extensions
.OES_texture_float_linear
) {
93 case GL_NEAREST_MIPMAP_NEAREST
:
96 unreachable("Invalid min filter");
103 * Return the gl_texture_object for a given ID.
105 struct gl_texture_object
*
106 _mesa_lookup_texture(struct gl_context
*ctx
, GLuint id
)
108 return (struct gl_texture_object
*)
109 _mesa_HashLookup(ctx
->Shared
->TexObjects
, id
);
113 * Wrapper around _mesa_lookup_texture that throws GL_INVALID_OPERATION if id
114 * is not in the hash table. After calling _mesa_error, it returns NULL.
116 struct gl_texture_object
*
117 _mesa_lookup_texture_err(struct gl_context
*ctx
, GLuint id
, const char* func
)
119 struct gl_texture_object
*texObj
;
121 texObj
= _mesa_lookup_texture(ctx
, id
); /* Returns NULL if not found. */
124 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(texture)", func
);
130 _mesa_begin_texture_lookups(struct gl_context
*ctx
)
132 _mesa_HashLockMutex(ctx
->Shared
->TexObjects
);
137 _mesa_end_texture_lookups(struct gl_context
*ctx
)
139 _mesa_HashUnlockMutex(ctx
->Shared
->TexObjects
);
143 struct gl_texture_object
*
144 _mesa_lookup_texture_locked(struct gl_context
*ctx
, GLuint id
)
146 return (struct gl_texture_object
*)
147 _mesa_HashLookupLocked(ctx
->Shared
->TexObjects
, id
);
151 * Return a pointer to the current texture object for the given target
152 * on the current texture unit.
153 * Note: all <target> error checking should have been done by this point.
155 struct gl_texture_object
*
156 _mesa_get_current_tex_object(struct gl_context
*ctx
, GLenum target
)
158 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
159 const GLboolean arrayTex
= ctx
->Extensions
.EXT_texture_array
;
163 return texUnit
->CurrentTex
[TEXTURE_1D_INDEX
];
164 case GL_PROXY_TEXTURE_1D
:
165 return ctx
->Texture
.ProxyTex
[TEXTURE_1D_INDEX
];
167 return texUnit
->CurrentTex
[TEXTURE_2D_INDEX
];
168 case GL_PROXY_TEXTURE_2D
:
169 return ctx
->Texture
.ProxyTex
[TEXTURE_2D_INDEX
];
171 return texUnit
->CurrentTex
[TEXTURE_3D_INDEX
];
172 case GL_PROXY_TEXTURE_3D
:
173 return ctx
->Texture
.ProxyTex
[TEXTURE_3D_INDEX
];
174 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
175 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
176 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
177 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
178 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
179 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
180 case GL_TEXTURE_CUBE_MAP_ARB
:
181 return ctx
->Extensions
.ARB_texture_cube_map
182 ? texUnit
->CurrentTex
[TEXTURE_CUBE_INDEX
] : NULL
;
183 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
184 return ctx
->Extensions
.ARB_texture_cube_map
185 ? ctx
->Texture
.ProxyTex
[TEXTURE_CUBE_INDEX
] : NULL
;
186 case GL_TEXTURE_CUBE_MAP_ARRAY
:
187 return ctx
->Extensions
.ARB_texture_cube_map_array
188 ? texUnit
->CurrentTex
[TEXTURE_CUBE_ARRAY_INDEX
] : NULL
;
189 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
190 return ctx
->Extensions
.ARB_texture_cube_map_array
191 ? ctx
->Texture
.ProxyTex
[TEXTURE_CUBE_ARRAY_INDEX
] : NULL
;
192 case GL_TEXTURE_RECTANGLE_NV
:
193 return ctx
->Extensions
.NV_texture_rectangle
194 ? texUnit
->CurrentTex
[TEXTURE_RECT_INDEX
] : NULL
;
195 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
196 return ctx
->Extensions
.NV_texture_rectangle
197 ? ctx
->Texture
.ProxyTex
[TEXTURE_RECT_INDEX
] : NULL
;
198 case GL_TEXTURE_1D_ARRAY_EXT
:
199 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
200 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
201 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_1D_ARRAY_INDEX
] : NULL
;
202 case GL_TEXTURE_2D_ARRAY_EXT
:
203 return arrayTex
? texUnit
->CurrentTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
204 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
205 return arrayTex
? ctx
->Texture
.ProxyTex
[TEXTURE_2D_ARRAY_INDEX
] : NULL
;
206 case GL_TEXTURE_BUFFER
:
207 return ctx
->API
== API_OPENGL_CORE
&&
208 ctx
->Extensions
.ARB_texture_buffer_object
?
209 texUnit
->CurrentTex
[TEXTURE_BUFFER_INDEX
] : NULL
;
210 case GL_TEXTURE_EXTERNAL_OES
:
211 return _mesa_is_gles(ctx
) && ctx
->Extensions
.OES_EGL_image_external
212 ? texUnit
->CurrentTex
[TEXTURE_EXTERNAL_INDEX
] : NULL
;
213 case GL_TEXTURE_2D_MULTISAMPLE
:
214 return ctx
->Extensions
.ARB_texture_multisample
215 ? texUnit
->CurrentTex
[TEXTURE_2D_MULTISAMPLE_INDEX
] : NULL
;
216 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
217 return ctx
->Extensions
.ARB_texture_multisample
218 ? ctx
->Texture
.ProxyTex
[TEXTURE_2D_MULTISAMPLE_INDEX
] : NULL
;
219 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
220 return ctx
->Extensions
.ARB_texture_multisample
221 ? texUnit
->CurrentTex
[TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
] : NULL
;
222 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
223 return ctx
->Extensions
.ARB_texture_multisample
224 ? ctx
->Texture
.ProxyTex
[TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
] : NULL
;
226 _mesa_problem(NULL
, "bad target in _mesa_get_current_tex_object()");
233 * Allocate and initialize a new texture object. But don't put it into the
234 * texture object hash table.
236 * Called via ctx->Driver.NewTextureObject, unless overridden by a device
239 * \param shared the shared GL state structure to contain the texture object
240 * \param name integer name for the texture object
241 * \param target either GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D,
242 * GL_TEXTURE_CUBE_MAP_ARB or GL_TEXTURE_RECTANGLE_NV. zero is ok for the sake
245 * \return pointer to new texture object.
247 struct gl_texture_object
*
248 _mesa_new_texture_object( struct gl_context
*ctx
, GLuint name
, GLenum target
)
250 struct gl_texture_object
*obj
;
252 obj
= MALLOC_STRUCT(gl_texture_object
);
253 _mesa_initialize_texture_object(ctx
, obj
, name
, target
);
259 * Initialize a new texture object to default values.
260 * \param obj the texture object
261 * \param name the texture name
262 * \param target the texture target
265 _mesa_initialize_texture_object( struct gl_context
*ctx
,
266 struct gl_texture_object
*obj
,
267 GLuint name
, GLenum target
)
269 assert(target
== 0 ||
270 target
== GL_TEXTURE_1D
||
271 target
== GL_TEXTURE_2D
||
272 target
== GL_TEXTURE_3D
||
273 target
== GL_TEXTURE_CUBE_MAP_ARB
||
274 target
== GL_TEXTURE_RECTANGLE_NV
||
275 target
== GL_TEXTURE_1D_ARRAY_EXT
||
276 target
== GL_TEXTURE_2D_ARRAY_EXT
||
277 target
== GL_TEXTURE_EXTERNAL_OES
||
278 target
== GL_TEXTURE_CUBE_MAP_ARRAY
||
279 target
== GL_TEXTURE_BUFFER
||
280 target
== GL_TEXTURE_2D_MULTISAMPLE
||
281 target
== GL_TEXTURE_2D_MULTISAMPLE_ARRAY
);
283 memset(obj
, 0, sizeof(*obj
));
284 /* init the non-zero fields */
285 mtx_init(&obj
->Mutex
, mtx_plain
);
288 obj
->Target
= target
;
289 obj
->Priority
= 1.0F
;
291 obj
->MaxLevel
= 1000;
293 /* must be one; no support for (YUV) planes in separate buffers */
294 obj
->RequiredTextureImageUnits
= 1;
297 if (target
== GL_TEXTURE_RECTANGLE_NV
||
298 target
== GL_TEXTURE_EXTERNAL_OES
) {
299 obj
->Sampler
.WrapS
= GL_CLAMP_TO_EDGE
;
300 obj
->Sampler
.WrapT
= GL_CLAMP_TO_EDGE
;
301 obj
->Sampler
.WrapR
= GL_CLAMP_TO_EDGE
;
302 obj
->Sampler
.MinFilter
= GL_LINEAR
;
305 obj
->Sampler
.WrapS
= GL_REPEAT
;
306 obj
->Sampler
.WrapT
= GL_REPEAT
;
307 obj
->Sampler
.WrapR
= GL_REPEAT
;
308 obj
->Sampler
.MinFilter
= GL_NEAREST_MIPMAP_LINEAR
;
310 obj
->Sampler
.MagFilter
= GL_LINEAR
;
311 obj
->Sampler
.MinLod
= -1000.0;
312 obj
->Sampler
.MaxLod
= 1000.0;
313 obj
->Sampler
.LodBias
= 0.0;
314 obj
->Sampler
.MaxAnisotropy
= 1.0;
315 obj
->Sampler
.CompareMode
= GL_NONE
; /* ARB_shadow */
316 obj
->Sampler
.CompareFunc
= GL_LEQUAL
; /* ARB_shadow */
317 obj
->DepthMode
= ctx
->API
== API_OPENGL_CORE
? GL_RED
: GL_LUMINANCE
;
318 obj
->StencilSampling
= false;
319 obj
->Sampler
.CubeMapSeamless
= GL_FALSE
;
320 obj
->Swizzle
[0] = GL_RED
;
321 obj
->Swizzle
[1] = GL_GREEN
;
322 obj
->Swizzle
[2] = GL_BLUE
;
323 obj
->Swizzle
[3] = GL_ALPHA
;
324 obj
->_Swizzle
= SWIZZLE_NOOP
;
325 obj
->Sampler
.sRGBDecode
= GL_DECODE_EXT
;
326 obj
->BufferObjectFormat
= GL_R8
;
327 obj
->_BufferObjectFormat
= MESA_FORMAT_R_UNORM8
;
328 obj
->ImageFormatCompatibilityType
= GL_IMAGE_FORMAT_COMPATIBILITY_BY_SIZE
;
333 * Some texture initialization can't be finished until we know which
334 * target it's getting bound to (GL_TEXTURE_1D/2D/etc).
337 finish_texture_init(struct gl_context
*ctx
, GLenum target
,
338 struct gl_texture_object
*obj
)
340 GLenum filter
= GL_LINEAR
;
341 assert(obj
->Target
== 0);
344 case GL_TEXTURE_2D_MULTISAMPLE
:
345 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
349 case GL_TEXTURE_RECTANGLE_NV
:
350 case GL_TEXTURE_EXTERNAL_OES
:
351 /* have to init wrap and filter state here - kind of klunky */
352 obj
->Sampler
.WrapS
= GL_CLAMP_TO_EDGE
;
353 obj
->Sampler
.WrapT
= GL_CLAMP_TO_EDGE
;
354 obj
->Sampler
.WrapR
= GL_CLAMP_TO_EDGE
;
355 obj
->Sampler
.MinFilter
= filter
;
356 obj
->Sampler
.MagFilter
= filter
;
357 if (ctx
->Driver
.TexParameter
) {
358 static const GLfloat fparam_wrap
[1] = {(GLfloat
) GL_CLAMP_TO_EDGE
};
359 const GLfloat fparam_filter
[1] = {(GLfloat
) filter
};
360 ctx
->Driver
.TexParameter(ctx
, obj
, GL_TEXTURE_WRAP_S
, fparam_wrap
);
361 ctx
->Driver
.TexParameter(ctx
, obj
, GL_TEXTURE_WRAP_T
, fparam_wrap
);
362 ctx
->Driver
.TexParameter(ctx
, obj
, GL_TEXTURE_WRAP_R
, fparam_wrap
);
363 ctx
->Driver
.TexParameter(ctx
, obj
,
364 GL_TEXTURE_MIN_FILTER
, fparam_filter
);
365 ctx
->Driver
.TexParameter(ctx
, obj
,
366 GL_TEXTURE_MAG_FILTER
, fparam_filter
);
371 /* nothing needs done */
378 * Deallocate a texture object struct. It should have already been
379 * removed from the texture object pool.
380 * Called via ctx->Driver.DeleteTexture() if not overriden by a driver.
382 * \param shared the shared GL state to which the object belongs.
383 * \param texObj the texture object to delete.
386 _mesa_delete_texture_object(struct gl_context
*ctx
,
387 struct gl_texture_object
*texObj
)
391 /* Set Target to an invalid value. With some assertions elsewhere
392 * we can try to detect possible use of deleted textures.
394 texObj
->Target
= 0x99;
396 /* free the texture images */
397 for (face
= 0; face
< 6; face
++) {
398 for (i
= 0; i
< MAX_TEXTURE_LEVELS
; i
++) {
399 if (texObj
->Image
[face
][i
]) {
400 ctx
->Driver
.DeleteTextureImage(ctx
, texObj
->Image
[face
][i
]);
405 _mesa_reference_buffer_object(ctx
, &texObj
->BufferObject
, NULL
);
407 /* destroy the mutex -- it may have allocated memory (eg on bsd) */
408 mtx_destroy(&texObj
->Mutex
);
412 /* free this object */
418 * Copy texture object state from one texture object to another.
419 * Use for glPush/PopAttrib.
421 * \param dest destination texture object.
422 * \param src source texture object.
425 _mesa_copy_texture_object( struct gl_texture_object
*dest
,
426 const struct gl_texture_object
*src
)
428 dest
->Target
= src
->Target
;
429 dest
->TargetIndex
= src
->TargetIndex
;
430 dest
->Name
= src
->Name
;
431 dest
->Priority
= src
->Priority
;
432 dest
->Sampler
.BorderColor
.f
[0] = src
->Sampler
.BorderColor
.f
[0];
433 dest
->Sampler
.BorderColor
.f
[1] = src
->Sampler
.BorderColor
.f
[1];
434 dest
->Sampler
.BorderColor
.f
[2] = src
->Sampler
.BorderColor
.f
[2];
435 dest
->Sampler
.BorderColor
.f
[3] = src
->Sampler
.BorderColor
.f
[3];
436 dest
->Sampler
.WrapS
= src
->Sampler
.WrapS
;
437 dest
->Sampler
.WrapT
= src
->Sampler
.WrapT
;
438 dest
->Sampler
.WrapR
= src
->Sampler
.WrapR
;
439 dest
->Sampler
.MinFilter
= src
->Sampler
.MinFilter
;
440 dest
->Sampler
.MagFilter
= src
->Sampler
.MagFilter
;
441 dest
->Sampler
.MinLod
= src
->Sampler
.MinLod
;
442 dest
->Sampler
.MaxLod
= src
->Sampler
.MaxLod
;
443 dest
->Sampler
.LodBias
= src
->Sampler
.LodBias
;
444 dest
->BaseLevel
= src
->BaseLevel
;
445 dest
->MaxLevel
= src
->MaxLevel
;
446 dest
->Sampler
.MaxAnisotropy
= src
->Sampler
.MaxAnisotropy
;
447 dest
->Sampler
.CompareMode
= src
->Sampler
.CompareMode
;
448 dest
->Sampler
.CompareFunc
= src
->Sampler
.CompareFunc
;
449 dest
->Sampler
.CubeMapSeamless
= src
->Sampler
.CubeMapSeamless
;
450 dest
->DepthMode
= src
->DepthMode
;
451 dest
->StencilSampling
= src
->StencilSampling
;
452 dest
->Sampler
.sRGBDecode
= src
->Sampler
.sRGBDecode
;
453 dest
->_MaxLevel
= src
->_MaxLevel
;
454 dest
->_MaxLambda
= src
->_MaxLambda
;
455 dest
->GenerateMipmap
= src
->GenerateMipmap
;
456 dest
->_BaseComplete
= src
->_BaseComplete
;
457 dest
->_MipmapComplete
= src
->_MipmapComplete
;
458 COPY_4V(dest
->Swizzle
, src
->Swizzle
);
459 dest
->_Swizzle
= src
->_Swizzle
;
460 dest
->_IsHalfFloat
= src
->_IsHalfFloat
;
461 dest
->_IsFloat
= src
->_IsFloat
;
463 dest
->RequiredTextureImageUnits
= src
->RequiredTextureImageUnits
;
468 * Free all texture images of the given texture object.
470 * \param ctx GL context.
471 * \param t texture object.
473 * \sa _mesa_clear_texture_image().
476 _mesa_clear_texture_object(struct gl_context
*ctx
,
477 struct gl_texture_object
*texObj
)
481 if (texObj
->Target
== 0)
484 for (i
= 0; i
< MAX_FACES
; i
++) {
485 for (j
= 0; j
< MAX_TEXTURE_LEVELS
; j
++) {
486 struct gl_texture_image
*texImage
= texObj
->Image
[i
][j
];
488 _mesa_clear_texture_image(ctx
, texImage
);
495 * Check if the given texture object is valid by examining its Target field.
496 * For debugging only.
499 valid_texture_object(const struct gl_texture_object
*tex
)
501 switch (tex
->Target
) {
506 case GL_TEXTURE_CUBE_MAP_ARB
:
507 case GL_TEXTURE_RECTANGLE_NV
:
508 case GL_TEXTURE_1D_ARRAY_EXT
:
509 case GL_TEXTURE_2D_ARRAY_EXT
:
510 case GL_TEXTURE_BUFFER
:
511 case GL_TEXTURE_EXTERNAL_OES
:
512 case GL_TEXTURE_CUBE_MAP_ARRAY
:
513 case GL_TEXTURE_2D_MULTISAMPLE
:
514 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
517 _mesa_problem(NULL
, "invalid reference to a deleted texture object");
520 _mesa_problem(NULL
, "invalid texture object Target 0x%x, Id = %u",
521 tex
->Target
, tex
->Name
);
528 * Reference (or unreference) a texture object.
529 * If '*ptr', decrement *ptr's refcount (and delete if it becomes zero).
530 * If 'tex' is non-null, increment its refcount.
531 * This is normally only called from the _mesa_reference_texobj() macro
532 * when there's a real pointer change.
535 _mesa_reference_texobj_(struct gl_texture_object
**ptr
,
536 struct gl_texture_object
*tex
)
541 /* Unreference the old texture */
542 GLboolean deleteFlag
= GL_FALSE
;
543 struct gl_texture_object
*oldTex
= *ptr
;
545 assert(valid_texture_object(oldTex
));
546 (void) valid_texture_object
; /* silence warning in release builds */
548 mtx_lock(&oldTex
->Mutex
);
549 assert(oldTex
->RefCount
> 0);
552 deleteFlag
= (oldTex
->RefCount
== 0);
553 mtx_unlock(&oldTex
->Mutex
);
556 /* Passing in the context drastically changes the driver code for
557 * framebuffer deletion.
559 GET_CURRENT_CONTEXT(ctx
);
561 ctx
->Driver
.DeleteTexture(ctx
, oldTex
);
563 _mesa_problem(NULL
, "Unable to delete texture, no context");
571 /* reference new texture */
572 assert(valid_texture_object(tex
));
573 mtx_lock(&tex
->Mutex
);
574 if (tex
->RefCount
== 0) {
575 /* this texture's being deleted (look just above) */
576 /* Not sure this can every really happen. Warn if it does. */
577 _mesa_problem(NULL
, "referencing deleted texture object");
584 mtx_unlock(&tex
->Mutex
);
589 enum base_mipmap
{ BASE
, MIPMAP
};
593 * Mark a texture object as incomplete. There are actually three kinds of
595 * 1. "base incomplete": the base level of the texture is invalid so no
596 * texturing is possible.
597 * 2. "mipmap incomplete": a non-base level of the texture is invalid so
598 * mipmap filtering isn't possible, but non-mipmap filtering is.
599 * 3. "texture incompleteness": some combination of texture state and
600 * sampler state renders the texture incomplete.
602 * \param t texture object
603 * \param bm either BASE or MIPMAP to indicate what's incomplete
604 * \param fmt... string describing why it's incomplete (for debugging).
607 incomplete(struct gl_texture_object
*t
, enum base_mipmap bm
,
608 const char *fmt
, ...)
610 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_TEXTURE
) {
615 vsnprintf(s
, sizeof(s
), fmt
, args
);
618 _mesa_debug(NULL
, "Texture Obj %d incomplete because: %s\n", t
->Name
, s
);
622 t
->_BaseComplete
= GL_FALSE
;
623 t
->_MipmapComplete
= GL_FALSE
;
628 * Examine a texture object to determine if it is complete.
630 * The gl_texture_object::Complete flag will be set to GL_TRUE or GL_FALSE
633 * \param ctx GL context.
634 * \param t texture object.
636 * According to the texture target, verifies that each of the mipmaps is
637 * present and has the expected size.
640 _mesa_test_texobj_completeness( const struct gl_context
*ctx
,
641 struct gl_texture_object
*t
)
643 const GLint baseLevel
= t
->BaseLevel
;
644 const struct gl_texture_image
*baseImage
;
647 /* We'll set these to FALSE if tests fail below */
648 t
->_BaseComplete
= GL_TRUE
;
649 t
->_MipmapComplete
= GL_TRUE
;
651 if (t
->Target
== GL_TEXTURE_BUFFER
) {
652 /* Buffer textures are always considered complete. The obvious case where
653 * they would be incomplete (no BO attached) is actually specced to be
654 * undefined rendering results.
659 /* Detect cases where the application set the base level to an invalid
662 if ((baseLevel
< 0) || (baseLevel
>= MAX_TEXTURE_LEVELS
)) {
663 incomplete(t
, BASE
, "base level = %d is invalid", baseLevel
);
667 if (t
->MaxLevel
< baseLevel
) {
668 incomplete(t
, MIPMAP
, "MAX_LEVEL (%d) < BASE_LEVEL (%d)",
669 t
->MaxLevel
, baseLevel
);
673 baseImage
= t
->Image
[0][baseLevel
];
675 /* Always need the base level image */
677 incomplete(t
, BASE
, "Image[baseLevel=%d] == NULL", baseLevel
);
681 /* Check width/height/depth for zero */
682 if (baseImage
->Width
== 0 ||
683 baseImage
->Height
== 0 ||
684 baseImage
->Depth
== 0) {
685 incomplete(t
, BASE
, "texture width or height or depth = 0");
689 /* Check if the texture values are integer */
691 GLenum datatype
= _mesa_get_format_datatype(baseImage
->TexFormat
);
692 t
->_IsIntegerFormat
= datatype
== GL_INT
|| datatype
== GL_UNSIGNED_INT
;
695 /* Check if the texture type is Float or HalfFloatOES and ensure Min and Mag
696 * filters are supported in this case.
698 if (_mesa_is_gles(ctx
) && !valid_filter_for_float(ctx
, t
)) {
699 incomplete(t
, BASE
, "Filter is not supported with Float types.");
703 /* Compute _MaxLevel (the maximum mipmap level we'll sample from given the
704 * mipmap image sizes and GL_TEXTURE_MAX_LEVEL state).
708 case GL_TEXTURE_1D_ARRAY_EXT
:
709 maxLevels
= ctx
->Const
.MaxTextureLevels
;
712 case GL_TEXTURE_2D_ARRAY_EXT
:
713 maxLevels
= ctx
->Const
.MaxTextureLevels
;
716 maxLevels
= ctx
->Const
.Max3DTextureLevels
;
718 case GL_TEXTURE_CUBE_MAP_ARB
:
719 case GL_TEXTURE_CUBE_MAP_ARRAY
:
720 maxLevels
= ctx
->Const
.MaxCubeTextureLevels
;
722 case GL_TEXTURE_RECTANGLE_NV
:
723 case GL_TEXTURE_BUFFER
:
724 case GL_TEXTURE_EXTERNAL_OES
:
725 case GL_TEXTURE_2D_MULTISAMPLE
:
726 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
727 maxLevels
= 1; /* no mipmapping */
730 _mesa_problem(ctx
, "Bad t->Target in _mesa_test_texobj_completeness");
734 assert(maxLevels
> 0);
736 t
->_MaxLevel
= MIN3(t
->MaxLevel
,
737 /* 'p' in the GL spec */
738 (int) (baseLevel
+ baseImage
->MaxNumLevels
- 1),
739 /* 'q' in the GL spec */
743 /* Adjust max level for views: the data store may have more levels than
746 t
->_MaxLevel
= MIN2(t
->_MaxLevel
, t
->NumLevels
- 1);
749 /* Compute _MaxLambda = q - p in the spec used during mipmapping */
750 t
->_MaxLambda
= (GLfloat
) (t
->_MaxLevel
- baseLevel
);
753 /* This texture object was created with glTexStorage1/2/3D() so we
754 * know that all the mipmap levels are the right size and all cube
755 * map faces are the same size.
756 * We don't need to do any of the additional checks below.
761 if (t
->Target
== GL_TEXTURE_CUBE_MAP_ARB
) {
762 /* Make sure that all six cube map level 0 images are the same size.
763 * Note: we know that the image's width==height (we enforce that
764 * at glTexImage time) so we only need to test the width here.
767 assert(baseImage
->Width2
== baseImage
->Height
);
768 for (face
= 1; face
< 6; face
++) {
769 assert(t
->Image
[face
][baseLevel
] == NULL
||
770 t
->Image
[face
][baseLevel
]->Width2
==
771 t
->Image
[face
][baseLevel
]->Height2
);
772 if (t
->Image
[face
][baseLevel
] == NULL
||
773 t
->Image
[face
][baseLevel
]->Width2
!= baseImage
->Width2
) {
774 incomplete(t
, BASE
, "Cube face missing or mismatched size");
781 * Do mipmap consistency checking.
782 * Note: we don't care about the current texture sampler state here.
783 * To determine texture completeness we'll either look at _BaseComplete
784 * or _MipmapComplete depending on the current minification filter mode.
788 const GLint minLevel
= baseLevel
;
789 const GLint maxLevel
= t
->_MaxLevel
;
790 const GLuint numFaces
= _mesa_num_tex_faces(t
->Target
);
791 GLuint width
, height
, depth
, face
;
793 if (minLevel
> maxLevel
) {
794 incomplete(t
, MIPMAP
, "minLevel > maxLevel");
798 /* Get the base image's dimensions */
799 width
= baseImage
->Width2
;
800 height
= baseImage
->Height2
;
801 depth
= baseImage
->Depth2
;
803 /* Note: this loop will be a no-op for RECT, BUFFER, EXTERNAL,
804 * MULTISAMPLE and MULTISAMPLE_ARRAY textures
806 for (i
= baseLevel
+ 1; i
< maxLevels
; i
++) {
807 /* Compute the expected size of image at level[i] */
811 if (height
> 1 && t
->Target
!= GL_TEXTURE_1D_ARRAY
) {
814 if (depth
> 1 && t
->Target
!= GL_TEXTURE_2D_ARRAY
815 && t
->Target
!= GL_TEXTURE_CUBE_MAP_ARRAY
) {
819 /* loop over cube faces (or single face otherwise) */
820 for (face
= 0; face
< numFaces
; face
++) {
821 if (i
>= minLevel
&& i
<= maxLevel
) {
822 const struct gl_texture_image
*img
= t
->Image
[face
][i
];
825 incomplete(t
, MIPMAP
, "TexImage[%d] is missing", i
);
828 if (img
->TexFormat
!= baseImage
->TexFormat
) {
829 incomplete(t
, MIPMAP
, "Format[i] != Format[baseLevel]");
832 if (img
->Border
!= baseImage
->Border
) {
833 incomplete(t
, MIPMAP
, "Border[i] != Border[baseLevel]");
836 if (img
->Width2
!= width
) {
837 incomplete(t
, MIPMAP
, "TexImage[%d] bad width %u", i
,
841 if (img
->Height2
!= height
) {
842 incomplete(t
, MIPMAP
, "TexImage[%d] bad height %u", i
,
846 if (img
->Depth2
!= depth
) {
847 incomplete(t
, MIPMAP
, "TexImage[%d] bad depth %u", i
,
852 /* Extra checks for cube textures */
854 /* check that cube faces are the same size */
855 if (img
->Width2
!= t
->Image
[0][i
]->Width2
||
856 img
->Height2
!= t
->Image
[0][i
]->Height2
) {
857 incomplete(t
, MIPMAP
, "CubeMap Image[n][i] bad size");
864 if (width
== 1 && height
== 1 && depth
== 1) {
865 return; /* found smallest needed mipmap, all done! */
873 _mesa_cube_level_complete(const struct gl_texture_object
*texObj
,
876 const struct gl_texture_image
*img0
, *img
;
879 if (texObj
->Target
!= GL_TEXTURE_CUBE_MAP
)
882 if ((level
< 0) || (level
>= MAX_TEXTURE_LEVELS
))
885 /* check first face */
886 img0
= texObj
->Image
[0][level
];
889 img0
->Width
!= img0
->Height
)
892 /* check remaining faces vs. first face */
893 for (face
= 1; face
< 6; face
++) {
894 img
= texObj
->Image
[face
][level
];
896 img
->Width
!= img0
->Width
||
897 img
->Height
!= img0
->Height
||
898 img
->TexFormat
!= img0
->TexFormat
)
906 * Check if the given cube map texture is "cube complete" as defined in
907 * the OpenGL specification.
910 _mesa_cube_complete(const struct gl_texture_object
*texObj
)
912 return _mesa_cube_level_complete(texObj
, texObj
->BaseLevel
);
916 * Mark a texture object dirty. It forces the object to be incomplete
917 * and forces the context to re-validate its state.
919 * \param ctx GL context.
920 * \param texObj texture object.
923 _mesa_dirty_texobj(struct gl_context
*ctx
, struct gl_texture_object
*texObj
)
925 texObj
->_BaseComplete
= GL_FALSE
;
926 texObj
->_MipmapComplete
= GL_FALSE
;
927 ctx
->NewState
|= _NEW_TEXTURE
;
932 * Return pointer to a default/fallback texture of the given type/target.
933 * The texture is an RGBA texture with all texels = (0,0,0,1).
934 * That's the value a GLSL sampler should get when sampling from an
935 * incomplete texture.
937 struct gl_texture_object
*
938 _mesa_get_fallback_texture(struct gl_context
*ctx
, gl_texture_index tex
)
940 if (!ctx
->Shared
->FallbackTex
[tex
]) {
941 /* create fallback texture now */
942 const GLsizei width
= 1, height
= 1;
945 struct gl_texture_object
*texObj
;
946 struct gl_texture_image
*texImage
;
947 mesa_format texFormat
;
948 GLuint dims
, face
, numFaces
= 1;
951 for (face
= 0; face
< 6; face
++) {
954 texel
[4*face
+ 2] = 0x0;
955 texel
[4*face
+ 3] = 0xff;
959 case TEXTURE_2D_ARRAY_INDEX
:
961 target
= GL_TEXTURE_2D_ARRAY
;
963 case TEXTURE_1D_ARRAY_INDEX
:
965 target
= GL_TEXTURE_1D_ARRAY
;
967 case TEXTURE_CUBE_INDEX
:
969 target
= GL_TEXTURE_CUBE_MAP
;
972 case TEXTURE_3D_INDEX
:
974 target
= GL_TEXTURE_3D
;
976 case TEXTURE_RECT_INDEX
:
978 target
= GL_TEXTURE_RECTANGLE
;
980 case TEXTURE_2D_INDEX
:
982 target
= GL_TEXTURE_2D
;
984 case TEXTURE_1D_INDEX
:
986 target
= GL_TEXTURE_1D
;
988 case TEXTURE_BUFFER_INDEX
:
990 target
= GL_TEXTURE_BUFFER
;
992 case TEXTURE_CUBE_ARRAY_INDEX
:
994 target
= GL_TEXTURE_CUBE_MAP_ARRAY
;
997 case TEXTURE_EXTERNAL_INDEX
:
999 target
= GL_TEXTURE_EXTERNAL_OES
;
1001 case TEXTURE_2D_MULTISAMPLE_INDEX
:
1003 target
= GL_TEXTURE_2D_MULTISAMPLE
;
1005 case TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
:
1007 target
= GL_TEXTURE_2D_MULTISAMPLE_ARRAY
;
1014 /* create texture object */
1015 texObj
= ctx
->Driver
.NewTextureObject(ctx
, 0, target
);
1019 assert(texObj
->RefCount
== 1);
1020 texObj
->Sampler
.MinFilter
= GL_NEAREST
;
1021 texObj
->Sampler
.MagFilter
= GL_NEAREST
;
1023 texFormat
= ctx
->Driver
.ChooseTextureFormat(ctx
, target
,
1027 /* need a loop here just for cube maps */
1028 for (face
= 0; face
< numFaces
; face
++) {
1031 if (target
== GL_TEXTURE_CUBE_MAP
)
1032 faceTarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ face
;
1034 faceTarget
= target
;
1036 /* initialize level[0] texture image */
1037 texImage
= _mesa_get_tex_image(ctx
, texObj
, faceTarget
, 0);
1039 _mesa_init_teximage_fields(ctx
, texImage
,
1041 (dims
> 1) ? height
: 1,
1042 (dims
> 2) ? depth
: 1,
1044 GL_RGBA
, texFormat
);
1046 ctx
->Driver
.TexImage(ctx
, dims
, texImage
,
1047 GL_RGBA
, GL_UNSIGNED_BYTE
, texel
,
1048 &ctx
->DefaultPacking
);
1051 _mesa_test_texobj_completeness(ctx
, texObj
);
1052 assert(texObj
->_BaseComplete
);
1053 assert(texObj
->_MipmapComplete
);
1055 ctx
->Shared
->FallbackTex
[tex
] = texObj
;
1057 return ctx
->Shared
->FallbackTex
[tex
];
1062 * Compute the size of the given texture object, in bytes.
1065 texture_size(const struct gl_texture_object
*texObj
)
1067 const GLuint numFaces
= _mesa_num_tex_faces(texObj
->Target
);
1068 GLuint face
, level
, size
= 0;
1070 for (face
= 0; face
< numFaces
; face
++) {
1071 for (level
= 0; level
< MAX_TEXTURE_LEVELS
; level
++) {
1072 const struct gl_texture_image
*img
= texObj
->Image
[face
][level
];
1074 GLuint sz
= _mesa_format_image_size(img
->TexFormat
, img
->Width
,
1075 img
->Height
, img
->Depth
);
1086 * Callback called from _mesa_HashWalk()
1089 count_tex_size(GLuint key
, void *data
, void *userData
)
1091 const struct gl_texture_object
*texObj
=
1092 (const struct gl_texture_object
*) data
;
1093 GLuint
*total
= (GLuint
*) userData
;
1097 *total
= *total
+ texture_size(texObj
);
1102 * Compute total size (in bytes) of all textures for the given context.
1103 * For debugging purposes.
1106 _mesa_total_texture_memory(struct gl_context
*ctx
)
1108 GLuint tgt
, total
= 0;
1110 _mesa_HashWalk(ctx
->Shared
->TexObjects
, count_tex_size
, &total
);
1112 /* plus, the default texture objects */
1113 for (tgt
= 0; tgt
< NUM_TEXTURE_TARGETS
; tgt
++) {
1114 total
+= texture_size(ctx
->Shared
->DefaultTex
[tgt
]);
1122 * Return the base format for the given texture object by looking
1123 * at the base texture image.
1124 * \return base format (such as GL_RGBA) or GL_NONE if it can't be determined
1127 _mesa_texture_base_format(const struct gl_texture_object
*texObj
)
1129 const struct gl_texture_image
*texImage
= _mesa_base_tex_image(texObj
);
1131 return texImage
? texImage
->_BaseFormat
: GL_NONE
;
1135 static struct gl_texture_object
*
1136 invalidate_tex_image_error_check(struct gl_context
*ctx
, GLuint texture
,
1137 GLint level
, const char *name
)
1139 /* The GL_ARB_invalidate_subdata spec says:
1141 * "If <texture> is zero or is not the name of a texture, the error
1142 * INVALID_VALUE is generated."
1144 * This performs the error check in a different order than listed in the
1145 * spec. We have to get the texture object before we can validate the
1146 * other parameters against values in the texture object.
1148 struct gl_texture_object
*const t
= _mesa_lookup_texture(ctx
, texture
);
1149 if (texture
== 0 || t
== NULL
) {
1150 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(texture)", name
);
1154 /* The GL_ARB_invalidate_subdata spec says:
1156 * "If <level> is less than zero or greater than the base 2 logarithm
1157 * of the maximum texture width, height, or depth, the error
1158 * INVALID_VALUE is generated."
1160 if (level
< 0 || level
> t
->MaxLevel
) {
1161 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level)", name
);
1165 /* The GL_ARB_invalidate_subdata spec says:
1167 * "If the target of <texture> is TEXTURE_RECTANGLE, TEXTURE_BUFFER,
1168 * TEXTURE_2D_MULTISAMPLE, or TEXTURE_2D_MULTISAMPLE_ARRAY, and <level>
1169 * is not zero, the error INVALID_VALUE is generated."
1172 switch (t
->Target
) {
1173 case GL_TEXTURE_RECTANGLE
:
1174 case GL_TEXTURE_BUFFER
:
1175 case GL_TEXTURE_2D_MULTISAMPLE
:
1176 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1177 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(level)", name
);
1189 * Wrapper for the driver function. Need this because _mesa_new_texture_object
1190 * permits a target of 0 and does not initialize targetIndex.
1192 struct gl_texture_object
*
1193 _mesa_create_nameless_texture(struct gl_context
*ctx
, GLenum target
)
1195 struct gl_texture_object
*texObj
= NULL
;
1201 texObj
= ctx
->Driver
.NewTextureObject(ctx
, 0, target
);
1202 targetIndex
= _mesa_tex_target_to_index(ctx
, texObj
->Target
);
1203 assert(targetIndex
< NUM_TEXTURE_TARGETS
);
1204 texObj
->TargetIndex
= targetIndex
;
1210 * Helper function for glCreateTextures and glGenTextures. Need this because
1211 * glCreateTextures should throw errors if target = 0. This is not exposed to
1212 * the rest of Mesa to encourage Mesa internals to use nameless textures,
1213 * which do not require expensive hash lookups.
1216 create_textures(struct gl_context
*ctx
, GLenum target
,
1217 GLsizei n
, GLuint
*textures
, bool dsa
)
1221 const char *func
= dsa
? "Create" : "Gen";
1223 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1224 _mesa_debug(ctx
, "gl%sTextures %d\n", func
, n
);
1227 _mesa_error( ctx
, GL_INVALID_VALUE
, "gl%sTextures(n < 0)", func
);
1235 * This must be atomic (generation and allocation of texture IDs)
1237 mtx_lock(&ctx
->Shared
->Mutex
);
1239 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->TexObjects
, n
);
1241 /* Allocate new, empty texture objects */
1242 for (i
= 0; i
< n
; i
++) {
1243 struct gl_texture_object
*texObj
;
1245 GLuint name
= first
+ i
;
1246 texObj
= ctx
->Driver
.NewTextureObject(ctx
, name
, target
);
1248 mtx_unlock(&ctx
->Shared
->Mutex
);
1249 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "gl%sTextures", func
);
1253 /* Initialize the target index if target is non-zero. */
1255 targetIndex
= _mesa_tex_target_to_index(ctx
, texObj
->Target
);
1256 if (targetIndex
< 0) { /* Bad Target */
1257 mtx_unlock(&ctx
->Shared
->Mutex
);
1258 _mesa_error(ctx
, GL_INVALID_ENUM
, "gl%sTextures(target = %s)",
1259 func
, _mesa_lookup_enum_by_nr(texObj
->Target
));
1262 assert(targetIndex
< NUM_TEXTURE_TARGETS
);
1263 texObj
->TargetIndex
= targetIndex
;
1266 /* insert into hash table */
1267 _mesa_HashInsert(ctx
->Shared
->TexObjects
, texObj
->Name
, texObj
);
1272 mtx_unlock(&ctx
->Shared
->Mutex
);
1278 /***********************************************************************/
1279 /** \name API functions */
1284 * Generate texture names.
1286 * \param n number of texture names to be generated.
1287 * \param textures an array in which will hold the generated texture names.
1289 * \sa glGenTextures(), glCreateTextures().
1291 * Calls _mesa_HashFindFreeKeyBlock() to find a block of free texture
1292 * IDs which are stored in \p textures. Corresponding empty texture
1293 * objects are also generated.
1296 _mesa_GenTextures(GLsizei n
, GLuint
*textures
)
1298 GET_CURRENT_CONTEXT(ctx
);
1299 create_textures(ctx
, 0, n
, textures
, false);
1303 * Create texture objects.
1305 * \param target the texture target for each name to be generated.
1306 * \param n number of texture names to be generated.
1307 * \param textures an array in which will hold the generated texture names.
1309 * \sa glCreateTextures(), glGenTextures().
1311 * Calls _mesa_HashFindFreeKeyBlock() to find a block of free texture
1312 * IDs which are stored in \p textures. Corresponding empty texture
1313 * objects are also generated.
1316 _mesa_CreateTextures(GLenum target
, GLsizei n
, GLuint
*textures
)
1319 GET_CURRENT_CONTEXT(ctx
);
1322 * The 4.5 core profile spec (30.10.2014) doesn't specify what
1323 * glCreateTextures should do with invalid targets, which was probably an
1324 * oversight. This conforms to the spec for glBindTexture.
1326 targetIndex
= _mesa_tex_target_to_index(ctx
, target
);
1327 if (targetIndex
< 0) {
1328 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCreateTextures(target)");
1332 create_textures(ctx
, target
, n
, textures
, true);
1336 * Check if the given texture object is bound to the current draw or
1337 * read framebuffer. If so, Unbind it.
1340 unbind_texobj_from_fbo(struct gl_context
*ctx
,
1341 struct gl_texture_object
*texObj
)
1343 bool progress
= false;
1345 /* Section 4.4.2 (Attaching Images to Framebuffer Objects), subsection
1346 * "Attaching Texture Images to a Framebuffer," of the OpenGL 3.1 spec
1349 * "If a texture object is deleted while its image is attached to one
1350 * or more attachment points in the currently bound framebuffer, then
1351 * it is as if FramebufferTexture* had been called, with a texture of
1352 * zero, for each attachment point to which this image was attached in
1353 * the currently bound framebuffer. In other words, this texture image
1354 * is first detached from all attachment points in the currently bound
1355 * framebuffer. Note that the texture image is specifically not
1356 * detached from any other framebuffer objects. Detaching the texture
1357 * image from any other framebuffer objects is the responsibility of
1360 if (_mesa_is_user_fbo(ctx
->DrawBuffer
)) {
1361 progress
= _mesa_detach_renderbuffer(ctx
, ctx
->DrawBuffer
, texObj
);
1363 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)
1364 && ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
1365 progress
= _mesa_detach_renderbuffer(ctx
, ctx
->ReadBuffer
, texObj
)
1370 /* Vertices are already flushed by _mesa_DeleteTextures */
1371 ctx
->NewState
|= _NEW_BUFFERS
;
1376 * Check if the given texture object is bound to any texture image units and
1377 * unbind it if so (revert to default textures).
1380 unbind_texobj_from_texunits(struct gl_context
*ctx
,
1381 struct gl_texture_object
*texObj
)
1383 const gl_texture_index index
= texObj
->TargetIndex
;
1386 if (texObj
->Target
== 0)
1389 for (u
= 0; u
< ctx
->Texture
.NumCurrentTexUsed
; u
++) {
1390 struct gl_texture_unit
*unit
= &ctx
->Texture
.Unit
[u
];
1392 if (texObj
== unit
->CurrentTex
[index
]) {
1393 /* Bind the default texture for this unit/target */
1394 _mesa_reference_texobj(&unit
->CurrentTex
[index
],
1395 ctx
->Shared
->DefaultTex
[index
]);
1396 unit
->_BoundTextures
&= ~(1 << index
);
1403 * Check if the given texture object is bound to any shader image unit
1404 * and unbind it if that's the case.
1407 unbind_texobj_from_image_units(struct gl_context
*ctx
,
1408 struct gl_texture_object
*texObj
)
1412 for (i
= 0; i
< ctx
->Const
.MaxImageUnits
; i
++) {
1413 struct gl_image_unit
*unit
= &ctx
->ImageUnits
[i
];
1415 if (texObj
== unit
->TexObj
)
1416 _mesa_reference_texobj(&unit
->TexObj
, NULL
);
1422 * Unbinds all textures bound to the given texture image unit.
1425 unbind_textures_from_unit(struct gl_context
*ctx
, GLuint unit
)
1427 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[unit
];
1429 while (texUnit
->_BoundTextures
) {
1430 const GLuint index
= ffs(texUnit
->_BoundTextures
) - 1;
1431 struct gl_texture_object
*texObj
= ctx
->Shared
->DefaultTex
[index
];
1433 _mesa_reference_texobj(&texUnit
->CurrentTex
[index
], texObj
);
1435 /* Pass BindTexture call to device driver */
1436 if (ctx
->Driver
.BindTexture
)
1437 ctx
->Driver
.BindTexture(ctx
, unit
, 0, texObj
);
1439 texUnit
->_BoundTextures
&= ~(1 << index
);
1440 ctx
->NewState
|= _NEW_TEXTURE
;
1446 * Delete named textures.
1448 * \param n number of textures to be deleted.
1449 * \param textures array of texture IDs to be deleted.
1451 * \sa glDeleteTextures().
1453 * If we're about to delete a texture that's currently bound to any
1454 * texture unit, unbind the texture first. Decrement the reference
1455 * count on the texture object and delete it if it's zero.
1456 * Recall that texture objects can be shared among several rendering
1460 _mesa_DeleteTextures( GLsizei n
, const GLuint
*textures
)
1462 GET_CURRENT_CONTEXT(ctx
);
1465 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1466 _mesa_debug(ctx
, "glDeleteTextures %d\n", n
);
1469 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteTextures(n < 0)");
1473 FLUSH_VERTICES(ctx
, 0); /* too complex */
1476 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteTextures(n)");
1483 for (i
= 0; i
< n
; i
++) {
1484 if (textures
[i
] > 0) {
1485 struct gl_texture_object
*delObj
1486 = _mesa_lookup_texture(ctx
, textures
[i
]);
1489 _mesa_lock_texture(ctx
, delObj
);
1491 /* Check if texture is bound to any framebuffer objects.
1493 * See section 4.4.2.3 of GL_EXT_framebuffer_object.
1495 unbind_texobj_from_fbo(ctx
, delObj
);
1497 /* Check if this texture is currently bound to any texture units.
1500 unbind_texobj_from_texunits(ctx
, delObj
);
1502 /* Check if this texture is currently bound to any shader
1503 * image unit. If so, unbind it.
1504 * See section 3.9.X of GL_ARB_shader_image_load_store.
1506 unbind_texobj_from_image_units(ctx
, delObj
);
1508 _mesa_unlock_texture(ctx
, delObj
);
1510 ctx
->NewState
|= _NEW_TEXTURE
;
1512 /* The texture _name_ is now free for re-use.
1513 * Remove it from the hash table now.
1515 mtx_lock(&ctx
->Shared
->Mutex
);
1516 _mesa_HashRemove(ctx
->Shared
->TexObjects
, delObj
->Name
);
1517 mtx_unlock(&ctx
->Shared
->Mutex
);
1519 /* Unreference the texobj. If refcount hits zero, the texture
1522 _mesa_reference_texobj(&delObj
, NULL
);
1529 * This deletes a texObj without altering the hash table.
1532 _mesa_delete_nameless_texture(struct gl_context
*ctx
,
1533 struct gl_texture_object
*texObj
)
1538 FLUSH_VERTICES(ctx
, 0);
1540 _mesa_lock_texture(ctx
, texObj
);
1542 /* Check if texture is bound to any framebuffer objects.
1544 * See section 4.4.2.3 of GL_EXT_framebuffer_object.
1546 unbind_texobj_from_fbo(ctx
, texObj
);
1548 /* Check if this texture is currently bound to any texture units.
1551 unbind_texobj_from_texunits(ctx
, texObj
);
1553 /* Check if this texture is currently bound to any shader
1554 * image unit. If so, unbind it.
1555 * See section 3.9.X of GL_ARB_shader_image_load_store.
1557 unbind_texobj_from_image_units(ctx
, texObj
);
1559 _mesa_unlock_texture(ctx
, texObj
);
1561 ctx
->NewState
|= _NEW_TEXTURE
;
1563 /* Unreference the texobj. If refcount hits zero, the texture
1566 _mesa_reference_texobj(&texObj
, NULL
);
1571 * Convert a GL texture target enum such as GL_TEXTURE_2D or GL_TEXTURE_3D
1572 * into the corresponding Mesa texture target index.
1573 * Note that proxy targets are not valid here.
1574 * \return TEXTURE_x_INDEX or -1 if target is invalid
1577 _mesa_tex_target_to_index(const struct gl_context
*ctx
, GLenum target
)
1581 return _mesa_is_desktop_gl(ctx
) ? TEXTURE_1D_INDEX
: -1;
1583 return TEXTURE_2D_INDEX
;
1585 return ctx
->API
!= API_OPENGLES
? TEXTURE_3D_INDEX
: -1;
1586 case GL_TEXTURE_CUBE_MAP
:
1587 return ctx
->Extensions
.ARB_texture_cube_map
1588 ? TEXTURE_CUBE_INDEX
: -1;
1589 case GL_TEXTURE_RECTANGLE
:
1590 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.NV_texture_rectangle
1591 ? TEXTURE_RECT_INDEX
: -1;
1592 case GL_TEXTURE_1D_ARRAY
:
1593 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
1594 ? TEXTURE_1D_ARRAY_INDEX
: -1;
1595 case GL_TEXTURE_2D_ARRAY
:
1596 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_array
)
1597 || _mesa_is_gles3(ctx
)
1598 ? TEXTURE_2D_ARRAY_INDEX
: -1;
1599 case GL_TEXTURE_BUFFER
:
1600 return ctx
->API
== API_OPENGL_CORE
&&
1601 ctx
->Extensions
.ARB_texture_buffer_object
?
1602 TEXTURE_BUFFER_INDEX
: -1;
1603 case GL_TEXTURE_EXTERNAL_OES
:
1604 return _mesa_is_gles(ctx
) && ctx
->Extensions
.OES_EGL_image_external
1605 ? TEXTURE_EXTERNAL_INDEX
: -1;
1606 case GL_TEXTURE_CUBE_MAP_ARRAY
:
1607 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_cube_map_array
1608 ? TEXTURE_CUBE_ARRAY_INDEX
: -1;
1609 case GL_TEXTURE_2D_MULTISAMPLE
:
1610 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1611 ? TEXTURE_2D_MULTISAMPLE_INDEX
: -1;
1612 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
1613 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_multisample
1614 ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX
: -1;
1622 * Bind a named texture to a texturing target.
1624 * \param target texture target.
1625 * \param texName texture name.
1627 * \sa glBindTexture().
1629 * Determines the old texture object bound and returns immediately if rebinding
1630 * the same texture. Get the current texture which is either a default texture
1631 * if name is null, a named texture from the hash, or a new texture if the
1632 * given texture name is new. Increments its reference count, binds it, and
1633 * calls dd_function_table::BindTexture. Decrements the old texture reference
1634 * count and deletes it if it reaches zero.
1637 _mesa_BindTexture( GLenum target
, GLuint texName
)
1639 GET_CURRENT_CONTEXT(ctx
);
1640 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
1641 struct gl_texture_object
*newTexObj
= NULL
;
1644 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1645 _mesa_debug(ctx
, "glBindTexture %s %d\n",
1646 _mesa_lookup_enum_by_nr(target
), (GLint
) texName
);
1648 targetIndex
= _mesa_tex_target_to_index(ctx
, target
);
1649 if (targetIndex
< 0) {
1650 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindTexture(target)");
1653 assert(targetIndex
< NUM_TEXTURE_TARGETS
);
1656 * Get pointer to new texture object (newTexObj)
1659 /* Use a default texture object */
1660 newTexObj
= ctx
->Shared
->DefaultTex
[targetIndex
];
1663 /* non-default texture object */
1664 newTexObj
= _mesa_lookup_texture(ctx
, texName
);
1666 /* error checking */
1667 if (newTexObj
->Target
!= 0 && newTexObj
->Target
!= target
) {
1668 /* The named texture object's target doesn't match the
1671 _mesa_error( ctx
, GL_INVALID_OPERATION
,
1672 "glBindTexture(target mismatch)" );
1675 if (newTexObj
->Target
== 0) {
1676 finish_texture_init(ctx
, target
, newTexObj
);
1680 if (ctx
->API
== API_OPENGL_CORE
) {
1681 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1682 "glBindTexture(non-gen name)");
1686 /* if this is a new texture id, allocate a texture object now */
1687 newTexObj
= ctx
->Driver
.NewTextureObject(ctx
, texName
, target
);
1689 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindTexture");
1693 /* and insert it into hash table */
1694 mtx_lock(&ctx
->Shared
->Mutex
);
1695 _mesa_HashInsert(ctx
->Shared
->TexObjects
, texName
, newTexObj
);
1696 mtx_unlock(&ctx
->Shared
->Mutex
);
1698 newTexObj
->Target
= target
;
1699 newTexObj
->TargetIndex
= targetIndex
;
1702 assert(valid_texture_object(newTexObj
));
1704 /* Check if this texture is only used by this context and is already bound.
1705 * If so, just return.
1708 GLboolean early_out
;
1709 mtx_lock(&ctx
->Shared
->Mutex
);
1710 early_out
= ((ctx
->Shared
->RefCount
== 1)
1711 && (newTexObj
== texUnit
->CurrentTex
[targetIndex
]));
1712 mtx_unlock(&ctx
->Shared
->Mutex
);
1718 /* flush before changing binding */
1719 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1721 /* Do the actual binding. The refcount on the previously bound
1722 * texture object will be decremented. It'll be deleted if the
1725 _mesa_reference_texobj(&texUnit
->CurrentTex
[targetIndex
], newTexObj
);
1726 ctx
->Texture
.NumCurrentTexUsed
= MAX2(ctx
->Texture
.NumCurrentTexUsed
,
1727 ctx
->Texture
.CurrentUnit
+ 1);
1728 assert(texUnit
->CurrentTex
[targetIndex
]);
1731 texUnit
->_BoundTextures
|= (1 << targetIndex
);
1733 texUnit
->_BoundTextures
&= ~(1 << targetIndex
);
1735 /* Pass BindTexture call to device driver */
1736 if (ctx
->Driver
.BindTexture
)
1737 ctx
->Driver
.BindTexture(ctx
, ctx
->Texture
.CurrentUnit
, target
, newTexObj
);
1741 * Do the actual binding to a numbered texture unit.
1742 * The refcount on the previously bound
1743 * texture object will be decremented. It'll be deleted if the
1747 _mesa_bind_texture_unit(struct gl_context
*ctx
,
1749 struct gl_texture_object
*texObj
)
1751 struct gl_texture_unit
*texUnit
;
1753 /* Get the texture unit (this is an array look-up) */
1754 texUnit
= _mesa_get_tex_unit_err(ctx
, unit
, "glBindTextureUnit");
1758 /* Check if this texture is only used by this context and is already bound.
1759 * If so, just return.
1763 mtx_lock(&ctx
->Shared
->Mutex
);
1764 early_out
= ((ctx
->Shared
->RefCount
== 1)
1765 && (texObj
== texUnit
->CurrentTex
[texObj
->TargetIndex
]));
1766 mtx_unlock(&ctx
->Shared
->Mutex
);
1772 /* flush before changing binding */
1773 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
1775 _mesa_reference_texobj(&texUnit
->CurrentTex
[texObj
->TargetIndex
],
1777 assert(texUnit
->CurrentTex
[texObj
->TargetIndex
]);
1778 ctx
->Texture
.NumCurrentTexUsed
= MAX2(ctx
->Texture
.NumCurrentTexUsed
,
1780 texUnit
->_BoundTextures
|= (1 << texObj
->TargetIndex
);
1783 /* Pass BindTexture call to device driver */
1784 if (ctx
->Driver
.BindTexture
) {
1785 ctx
->Driver
.BindTexture(ctx
, unit
, texObj
->Target
, texObj
);
1790 * Bind a named texture to the specified texture unit.
1792 * \param unit texture unit.
1793 * \param texture texture name.
1795 * \sa glBindTexture().
1797 * If the named texture is 0, this will reset each target for the specified
1798 * texture unit to its default texture.
1799 * If the named texture is not 0 or a recognized texture name, this throws
1800 * GL_INVALID_OPERATION.
1803 _mesa_BindTextureUnit(GLuint unit
, GLuint texture
)
1805 GET_CURRENT_CONTEXT(ctx
);
1806 struct gl_texture_object
*texObj
;
1808 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1809 _mesa_debug(ctx
, "glBindTextureUnit %s %d\n",
1810 _mesa_lookup_enum_by_nr(GL_TEXTURE0
+unit
), (GLint
) texture
);
1812 /* Section 8.1 (Texture Objects) of the OpenGL 4.5 core profile spec
1814 * "When texture is zero, each of the targets enumerated at the
1815 * beginning of this section is reset to its default texture for the
1816 * corresponding texture image unit."
1819 unbind_textures_from_unit(ctx
, unit
);
1823 /* Get the non-default texture object */
1824 texObj
= _mesa_lookup_texture(ctx
, texture
);
1826 /* Error checking */
1828 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1829 "glBindTextureUnit(non-gen name)");
1832 if (texObj
->Target
== 0) {
1833 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindTextureUnit(target)");
1836 assert(valid_texture_object(texObj
));
1838 _mesa_bind_texture_unit(ctx
, unit
, texObj
);
1843 _mesa_BindTextures(GLuint first
, GLsizei count
, const GLuint
*textures
)
1845 GET_CURRENT_CONTEXT(ctx
);
1848 /* The ARB_multi_bind spec says:
1850 * "An INVALID_OPERATION error is generated if <first> + <count>
1851 * is greater than the number of texture image units supported
1852 * by the implementation."
1854 if (first
+ count
> ctx
->Const
.MaxCombinedTextureImageUnits
) {
1855 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1856 "glBindTextures(first=%u + count=%d > the value of "
1857 "GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS=%u)",
1858 first
, count
, ctx
->Const
.MaxCombinedTextureImageUnits
);
1862 /* Flush before changing bindings */
1863 FLUSH_VERTICES(ctx
, 0);
1865 ctx
->Texture
.NumCurrentTexUsed
= MAX2(ctx
->Texture
.NumCurrentTexUsed
,
1869 /* Note that the error semantics for multi-bind commands differ from
1870 * those of other GL commands.
1872 * The issues section in the ARB_multi_bind spec says:
1874 * "(11) Typically, OpenGL specifies that if an error is generated by
1875 * a command, that command has no effect. This is somewhat
1876 * unfortunate for multi-bind commands, because it would require
1877 * a first pass to scan the entire list of bound objects for
1878 * errors and then a second pass to actually perform the
1879 * bindings. Should we have different error semantics?
1881 * RESOLVED: Yes. In this specification, when the parameters for
1882 * one of the <count> binding points are invalid, that binding
1883 * point is not updated and an error will be generated. However,
1884 * other binding points in the same command will be updated if
1885 * their parameters are valid and no other error occurs."
1888 _mesa_begin_texture_lookups(ctx
);
1890 for (i
= 0; i
< count
; i
++) {
1891 if (textures
[i
] != 0) {
1892 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[first
+ i
];
1893 struct gl_texture_object
*current
= texUnit
->_Current
;
1894 struct gl_texture_object
*texObj
;
1896 if (current
&& current
->Name
== textures
[i
])
1899 texObj
= _mesa_lookup_texture_locked(ctx
, textures
[i
]);
1901 if (texObj
&& texObj
->Target
!= 0) {
1902 const gl_texture_index targetIndex
= texObj
->TargetIndex
;
1904 if (texUnit
->CurrentTex
[targetIndex
] != texObj
) {
1905 /* Do the actual binding. The refcount on the previously
1906 * bound texture object will be decremented. It will be
1907 * deleted if the count hits zero.
1909 _mesa_reference_texobj(&texUnit
->CurrentTex
[targetIndex
],
1912 texUnit
->_BoundTextures
|= (1 << targetIndex
);
1913 ctx
->NewState
|= _NEW_TEXTURE
;
1915 /* Pass the BindTexture call to the device driver */
1916 if (ctx
->Driver
.BindTexture
)
1917 ctx
->Driver
.BindTexture(ctx
, first
+ i
,
1918 texObj
->Target
, texObj
);
1921 /* The ARB_multi_bind spec says:
1923 * "An INVALID_OPERATION error is generated if any value
1924 * in <textures> is not zero or the name of an existing
1925 * texture object (per binding)."
1927 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1928 "glBindTextures(textures[%d]=%u is not zero "
1929 "or the name of an existing texture object)",
1933 unbind_textures_from_unit(ctx
, first
+ i
);
1937 _mesa_end_texture_lookups(ctx
);
1939 /* Unbind all textures in the range <first> through <first>+<count>-1 */
1940 for (i
= 0; i
< count
; i
++)
1941 unbind_textures_from_unit(ctx
, first
+ i
);
1947 * Set texture priorities.
1949 * \param n number of textures.
1950 * \param texName texture names.
1951 * \param priorities corresponding texture priorities.
1953 * \sa glPrioritizeTextures().
1955 * Looks up each texture in the hash, clamps the corresponding priority between
1956 * 0.0 and 1.0, and calls dd_function_table::PrioritizeTexture.
1959 _mesa_PrioritizeTextures( GLsizei n
, const GLuint
*texName
,
1960 const GLclampf
*priorities
)
1962 GET_CURRENT_CONTEXT(ctx
);
1965 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
1966 _mesa_debug(ctx
, "glPrioritizeTextures %d\n", n
);
1968 FLUSH_VERTICES(ctx
, 0);
1971 _mesa_error( ctx
, GL_INVALID_VALUE
, "glPrioritizeTextures" );
1978 for (i
= 0; i
< n
; i
++) {
1979 if (texName
[i
] > 0) {
1980 struct gl_texture_object
*t
= _mesa_lookup_texture(ctx
, texName
[i
]);
1982 t
->Priority
= CLAMP( priorities
[i
], 0.0F
, 1.0F
);
1987 ctx
->NewState
|= _NEW_TEXTURE
;
1993 * See if textures are loaded in texture memory.
1995 * \param n number of textures to query.
1996 * \param texName array with the texture names.
1997 * \param residences array which will hold the residence status.
1999 * \return GL_TRUE if all textures are resident and
2000 * residences is left unchanged,
2002 * Note: we assume all textures are always resident
2004 GLboolean GLAPIENTRY
2005 _mesa_AreTexturesResident(GLsizei n
, const GLuint
*texName
,
2006 GLboolean
*residences
)
2008 GET_CURRENT_CONTEXT(ctx
);
2009 GLboolean allResident
= GL_TRUE
;
2011 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
2013 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2014 _mesa_debug(ctx
, "glAreTexturesResident %d\n", n
);
2017 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident(n)");
2021 if (!texName
|| !residences
)
2024 /* We only do error checking on the texture names */
2025 for (i
= 0; i
< n
; i
++) {
2026 struct gl_texture_object
*t
;
2027 if (texName
[i
] == 0) {
2028 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident");
2031 t
= _mesa_lookup_texture(ctx
, texName
[i
]);
2033 _mesa_error(ctx
, GL_INVALID_VALUE
, "glAreTexturesResident");
2043 * See if a name corresponds to a texture.
2045 * \param texture texture name.
2047 * \return GL_TRUE if texture name corresponds to a texture, or GL_FALSE
2050 * \sa glIsTexture().
2052 * Calls _mesa_HashLookup().
2054 GLboolean GLAPIENTRY
2055 _mesa_IsTexture( GLuint texture
)
2057 struct gl_texture_object
*t
;
2058 GET_CURRENT_CONTEXT(ctx
);
2059 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
2061 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2062 _mesa_debug(ctx
, "glIsTexture %d\n", texture
);
2067 t
= _mesa_lookup_texture(ctx
, texture
);
2069 /* IsTexture is true only after object has been bound once. */
2070 return t
&& t
->Target
;
2075 * Simplest implementation of texture locking: grab the shared tex
2076 * mutex. Examine the shared context state timestamp and if there has
2077 * been a change, set the appropriate bits in ctx->NewState.
2079 * This is used to deal with synchronizing things when a texture object
2080 * is used/modified by different contexts (or threads) which are sharing
2083 * See also _mesa_lock/unlock_texture() in teximage.h
2086 _mesa_lock_context_textures( struct gl_context
*ctx
)
2088 mtx_lock(&ctx
->Shared
->TexMutex
);
2090 if (ctx
->Shared
->TextureStateStamp
!= ctx
->TextureStateTimestamp
) {
2091 ctx
->NewState
|= _NEW_TEXTURE
;
2092 ctx
->TextureStateTimestamp
= ctx
->Shared
->TextureStateStamp
;
2098 _mesa_unlock_context_textures( struct gl_context
*ctx
)
2100 assert(ctx
->Shared
->TextureStateStamp
== ctx
->TextureStateTimestamp
);
2101 mtx_unlock(&ctx
->Shared
->TexMutex
);
2106 _mesa_InvalidateTexSubImage(GLuint texture
, GLint level
, GLint xoffset
,
2107 GLint yoffset
, GLint zoffset
, GLsizei width
,
2108 GLsizei height
, GLsizei depth
)
2110 struct gl_texture_object
*t
;
2111 struct gl_texture_image
*image
;
2112 GET_CURRENT_CONTEXT(ctx
);
2114 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2115 _mesa_debug(ctx
, "glInvalidateTexSubImage %d\n", texture
);
2117 t
= invalidate_tex_image_error_check(ctx
, texture
, level
,
2118 "glInvalidateTexSubImage");
2120 /* The GL_ARB_invalidate_subdata spec says:
2122 * "...the specified subregion must be between -<b> and <dim>+<b> where
2123 * <dim> is the size of the dimension of the texture image, and <b> is
2124 * the size of the border of that texture image, otherwise
2125 * INVALID_VALUE is generated (border is not applied to dimensions that
2126 * don't exist in a given texture target)."
2128 image
= t
->Image
[0][level
];
2137 /* The GL_ARB_invalidate_subdata spec says:
2139 * "For texture targets that don't have certain dimensions, this
2140 * command treats those dimensions as having a size of 1. For
2141 * example, to invalidate a portion of a two-dimensional texture,
2142 * the application would use <zoffset> equal to zero and <depth>
2145 switch (t
->Target
) {
2146 case GL_TEXTURE_BUFFER
:
2155 xBorder
= image
->Border
;
2158 imageWidth
= image
->Width
;
2162 case GL_TEXTURE_1D_ARRAY
:
2163 xBorder
= image
->Border
;
2166 imageWidth
= image
->Width
;
2167 imageHeight
= image
->Height
;
2171 case GL_TEXTURE_CUBE_MAP
:
2172 case GL_TEXTURE_RECTANGLE
:
2173 case GL_TEXTURE_2D_MULTISAMPLE
:
2174 xBorder
= image
->Border
;
2175 yBorder
= image
->Border
;
2177 imageWidth
= image
->Width
;
2178 imageHeight
= image
->Height
;
2181 case GL_TEXTURE_2D_ARRAY
:
2182 case GL_TEXTURE_CUBE_MAP_ARRAY
:
2183 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
2184 xBorder
= image
->Border
;
2185 yBorder
= image
->Border
;
2187 imageWidth
= image
->Width
;
2188 imageHeight
= image
->Height
;
2189 imageDepth
= image
->Depth
;
2192 xBorder
= image
->Border
;
2193 yBorder
= image
->Border
;
2194 zBorder
= image
->Border
;
2195 imageWidth
= image
->Width
;
2196 imageHeight
= image
->Height
;
2197 imageDepth
= image
->Depth
;
2200 assert(!"Should not get here.");
2210 if (xoffset
< -xBorder
) {
2211 _mesa_error(ctx
, GL_INVALID_VALUE
, "glInvalidateSubTexImage(xoffset)");
2215 if (xoffset
+ width
> imageWidth
+ xBorder
) {
2216 _mesa_error(ctx
, GL_INVALID_VALUE
,
2217 "glInvalidateSubTexImage(xoffset+width)");
2221 if (yoffset
< -yBorder
) {
2222 _mesa_error(ctx
, GL_INVALID_VALUE
, "glInvalidateSubTexImage(yoffset)");
2226 if (yoffset
+ height
> imageHeight
+ yBorder
) {
2227 _mesa_error(ctx
, GL_INVALID_VALUE
,
2228 "glInvalidateSubTexImage(yoffset+height)");
2232 if (zoffset
< -zBorder
) {
2233 _mesa_error(ctx
, GL_INVALID_VALUE
,
2234 "glInvalidateSubTexImage(zoffset)");
2238 if (zoffset
+ depth
> imageDepth
+ zBorder
) {
2239 _mesa_error(ctx
, GL_INVALID_VALUE
,
2240 "glInvalidateSubTexImage(zoffset+depth)");
2245 /* We don't actually do anything for this yet. Just return after
2246 * validating the parameters and generating the required errors.
2253 _mesa_InvalidateTexImage(GLuint texture
, GLint level
)
2255 GET_CURRENT_CONTEXT(ctx
);
2257 if (MESA_VERBOSE
& (VERBOSE_API
|VERBOSE_TEXTURE
))
2258 _mesa_debug(ctx
, "glInvalidateTexImage(%d, %d)\n", texture
, level
);
2260 invalidate_tex_image_error_check(ctx
, texture
, level
,
2261 "glInvalidateTexImage");
2263 /* We don't actually do anything for this yet. Just return after
2264 * validating the parameters and generating the required errors.