2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (C) 1999-2009 VMware, Inc. All Rights Reserved.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 * GL_EXT/ARB_framebuffer_object extensions
40 #include "framebuffer.h"
43 #include "renderbuffer.h"
49 /** Set this to 1 to help debug FBO incompleteness problems */
52 /** Set this to 1 to debug/log glBlitFramebuffer() calls */
59 * None of the GL_EXT_framebuffer_object functions are compiled into
66 * When glGenRender/FramebuffersEXT() is called we insert pointers to
67 * these placeholder objects into the hash table.
68 * Later, when the object ID is first bound, we replace the placeholder
69 * with the real frame/renderbuffer.
71 static struct gl_framebuffer DummyFramebuffer
;
72 static struct gl_renderbuffer DummyRenderbuffer
;
75 #define IS_CUBE_FACE(TARGET) \
76 ((TARGET) >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && \
77 (TARGET) <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z)
81 delete_dummy_renderbuffer(struct gl_renderbuffer
*rb
)
87 delete_dummy_framebuffer(struct gl_framebuffer
*fb
)
94 _mesa_init_fbobjects(GLcontext
*ctx
)
96 DummyFramebuffer
.Delete
= delete_dummy_framebuffer
;
97 DummyRenderbuffer
.Delete
= delete_dummy_renderbuffer
;
102 * Helper routine for getting a gl_renderbuffer.
104 struct gl_renderbuffer
*
105 _mesa_lookup_renderbuffer(GLcontext
*ctx
, GLuint id
)
107 struct gl_renderbuffer
*rb
;
112 rb
= (struct gl_renderbuffer
*)
113 _mesa_HashLookup(ctx
->Shared
->RenderBuffers
, id
);
119 * Helper routine for getting a gl_framebuffer.
121 struct gl_framebuffer
*
122 _mesa_lookup_framebuffer(GLcontext
*ctx
, GLuint id
)
124 struct gl_framebuffer
*fb
;
129 fb
= (struct gl_framebuffer
*)
130 _mesa_HashLookup(ctx
->Shared
->FrameBuffers
, id
);
136 * Mark the given framebuffer as invalid. This will force the
137 * test for framebuffer completeness to be done before the framebuffer
141 invalidate_framebuffer(struct gl_framebuffer
*fb
)
143 fb
->_Status
= 0; /* "indeterminate" */
148 * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding
149 * gl_renderbuffer_attachment object.
150 * If \p attachment is GL_DEPTH_STENCIL_ATTACHMENT, return a pointer to
151 * the depth buffer attachment point.
153 struct gl_renderbuffer_attachment
*
154 _mesa_get_attachment(GLcontext
*ctx
, struct gl_framebuffer
*fb
,
159 switch (attachment
) {
160 case GL_COLOR_ATTACHMENT0_EXT
:
161 case GL_COLOR_ATTACHMENT1_EXT
:
162 case GL_COLOR_ATTACHMENT2_EXT
:
163 case GL_COLOR_ATTACHMENT3_EXT
:
164 case GL_COLOR_ATTACHMENT4_EXT
:
165 case GL_COLOR_ATTACHMENT5_EXT
:
166 case GL_COLOR_ATTACHMENT6_EXT
:
167 case GL_COLOR_ATTACHMENT7_EXT
:
168 case GL_COLOR_ATTACHMENT8_EXT
:
169 case GL_COLOR_ATTACHMENT9_EXT
:
170 case GL_COLOR_ATTACHMENT10_EXT
:
171 case GL_COLOR_ATTACHMENT11_EXT
:
172 case GL_COLOR_ATTACHMENT12_EXT
:
173 case GL_COLOR_ATTACHMENT13_EXT
:
174 case GL_COLOR_ATTACHMENT14_EXT
:
175 case GL_COLOR_ATTACHMENT15_EXT
:
176 i
= attachment
- GL_COLOR_ATTACHMENT0_EXT
;
177 if (i
>= ctx
->Const
.MaxColorAttachments
) {
180 return &fb
->Attachment
[BUFFER_COLOR0
+ i
];
181 case GL_DEPTH_STENCIL_ATTACHMENT
:
183 case GL_DEPTH_ATTACHMENT_EXT
:
184 return &fb
->Attachment
[BUFFER_DEPTH
];
185 case GL_STENCIL_ATTACHMENT_EXT
:
186 return &fb
->Attachment
[BUFFER_STENCIL
];
194 * Remove any texture or renderbuffer attached to the given attachment
195 * point. Update reference counts, etc.
198 _mesa_remove_attachment(GLcontext
*ctx
, struct gl_renderbuffer_attachment
*att
)
200 if (att
->Type
== GL_TEXTURE
) {
201 ASSERT(att
->Texture
);
202 if (ctx
->Driver
.FinishRenderTexture
) {
203 /* tell driver that we're done rendering to this texture. */
204 ctx
->Driver
.FinishRenderTexture(ctx
, att
);
206 _mesa_reference_texobj(&att
->Texture
, NULL
); /* unbind */
207 ASSERT(!att
->Texture
);
209 if (att
->Type
== GL_TEXTURE
|| att
->Type
== GL_RENDERBUFFER_EXT
) {
210 ASSERT(!att
->Texture
);
211 _mesa_reference_renderbuffer(&att
->Renderbuffer
, NULL
); /* unbind */
212 ASSERT(!att
->Renderbuffer
);
215 att
->Complete
= GL_TRUE
;
220 * Bind a texture object to an attachment point.
221 * The previous binding, if any, will be removed first.
224 _mesa_set_texture_attachment(GLcontext
*ctx
,
225 struct gl_framebuffer
*fb
,
226 struct gl_renderbuffer_attachment
*att
,
227 struct gl_texture_object
*texObj
,
228 GLenum texTarget
, GLuint level
, GLuint zoffset
)
230 if (att
->Texture
== texObj
) {
231 /* re-attaching same texture */
232 ASSERT(att
->Type
== GL_TEXTURE
);
233 if (ctx
->Driver
.FinishRenderTexture
)
234 ctx
->Driver
.FinishRenderTexture(ctx
, att
);
238 if (ctx
->Driver
.FinishRenderTexture
&& att
->Texture
)
239 ctx
->Driver
.FinishRenderTexture(ctx
, att
);
240 _mesa_remove_attachment(ctx
, att
);
241 att
->Type
= GL_TEXTURE
;
242 assert(!att
->Texture
);
243 _mesa_reference_texobj(&att
->Texture
, texObj
);
246 /* always update these fields */
247 att
->TextureLevel
= level
;
248 att
->CubeMapFace
= _mesa_tex_target_to_face(texTarget
);
249 att
->Zoffset
= zoffset
;
250 att
->Complete
= GL_FALSE
;
252 if (att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
]) {
253 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
256 invalidate_framebuffer(fb
);
261 * Bind a renderbuffer to an attachment point.
262 * The previous binding, if any, will be removed first.
265 _mesa_set_renderbuffer_attachment(GLcontext
*ctx
,
266 struct gl_renderbuffer_attachment
*att
,
267 struct gl_renderbuffer
*rb
)
269 /* XXX check if re-doing same attachment, exit early */
270 _mesa_remove_attachment(ctx
, att
);
271 att
->Type
= GL_RENDERBUFFER_EXT
;
272 att
->Texture
= NULL
; /* just to be safe */
273 att
->Complete
= GL_FALSE
;
274 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
279 * Fallback for ctx->Driver.FramebufferRenderbuffer()
280 * Attach a renderbuffer object to a framebuffer object.
283 _mesa_framebuffer_renderbuffer(GLcontext
*ctx
, struct gl_framebuffer
*fb
,
284 GLenum attachment
, struct gl_renderbuffer
*rb
)
286 struct gl_renderbuffer_attachment
*att
;
288 _glthread_LOCK_MUTEX(fb
->Mutex
);
290 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
293 _mesa_set_renderbuffer_attachment(ctx
, att
, rb
);
294 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
295 /* do stencil attachment here (depth already done above) */
296 att
= _mesa_get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
);
298 _mesa_set_renderbuffer_attachment(ctx
, att
, rb
);
302 _mesa_remove_attachment(ctx
, att
);
305 invalidate_framebuffer(fb
);
307 _glthread_UNLOCK_MUTEX(fb
->Mutex
);
315 att_incomplete(const char *msg
)
318 _mesa_debug(NULL
, "attachment incomplete: %s\n", msg
);
329 fbo_incomplete(const char *msg
, int index
)
332 _mesa_debug(NULL
, "FBO Incomplete: %s [%d]\n", msg
, index
);
343 * Test if an attachment point is complete and update its Complete field.
344 * \param format if GL_COLOR, this is a color attachment point,
345 * if GL_DEPTH, this is a depth component attachment point,
346 * if GL_STENCIL, this is a stencil component attachment point.
349 test_attachment_completeness(const GLcontext
*ctx
, GLenum format
,
350 struct gl_renderbuffer_attachment
*att
)
352 assert(format
== GL_COLOR
|| format
== GL_DEPTH
|| format
== GL_STENCIL
);
354 /* assume complete */
355 att
->Complete
= GL_TRUE
;
357 /* Look for reasons why the attachment might be incomplete */
358 if (att
->Type
== GL_TEXTURE
) {
359 const struct gl_texture_object
*texObj
= att
->Texture
;
360 struct gl_texture_image
*texImage
;
364 att_incomplete("no texobj");
365 att
->Complete
= GL_FALSE
;
369 texImage
= texObj
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
371 att_incomplete("no teximage");
372 att
->Complete
= GL_FALSE
;
375 if (texImage
->Width
< 1 || texImage
->Height
< 1) {
376 att_incomplete("teximage width/height=0");
377 _mesa_printf("texobj = %u\n", texObj
->Name
);
378 _mesa_printf("level = %d\n", att
->TextureLevel
);
379 att
->Complete
= GL_FALSE
;
382 if (texObj
->Target
== GL_TEXTURE_3D
&& att
->Zoffset
>= texImage
->Depth
) {
383 att_incomplete("bad z offset");
384 att
->Complete
= GL_FALSE
;
388 baseFormat
= _mesa_get_format_base_format(texImage
->TexFormat
);
390 if (format
== GL_COLOR
) {
391 if (baseFormat
!= GL_RGB
&&
392 baseFormat
!= GL_RGBA
) {
393 att_incomplete("bad format");
394 att
->Complete
= GL_FALSE
;
397 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
398 att_incomplete("compressed internalformat");
399 att
->Complete
= GL_FALSE
;
403 else if (format
== GL_DEPTH
) {
404 if (baseFormat
== GL_DEPTH_COMPONENT
) {
407 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
408 ctx
->Extensions
.ARB_depth_texture
&&
409 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
413 att
->Complete
= GL_FALSE
;
414 att_incomplete("bad depth format");
419 ASSERT(format
== GL_STENCIL
);
420 if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
421 ctx
->Extensions
.ARB_depth_texture
&&
422 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
426 /* no such thing as stencil-only textures */
427 att_incomplete("illegal stencil texture");
428 att
->Complete
= GL_FALSE
;
433 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
434 const GLenum baseFormat
=
435 _mesa_get_format_base_format(att
->Renderbuffer
->Format
);
437 ASSERT(att
->Renderbuffer
);
438 if (!att
->Renderbuffer
->InternalFormat
||
439 att
->Renderbuffer
->Width
< 1 ||
440 att
->Renderbuffer
->Height
< 1) {
441 att_incomplete("0x0 renderbuffer");
442 att
->Complete
= GL_FALSE
;
445 if (format
== GL_COLOR
) {
446 if (baseFormat
!= GL_RGB
&&
447 baseFormat
!= GL_RGBA
) {
448 att_incomplete("bad renderbuffer color format");
449 att
->Complete
= GL_FALSE
;
453 else if (format
== GL_DEPTH
) {
454 if (baseFormat
== GL_DEPTH_COMPONENT
) {
457 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
458 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
462 att_incomplete("bad renderbuffer depth format");
463 att
->Complete
= GL_FALSE
;
468 assert(format
== GL_STENCIL
);
469 if (baseFormat
== GL_STENCIL_INDEX
) {
472 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
473 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
477 att
->Complete
= GL_FALSE
;
478 att_incomplete("bad renderbuffer stencil format");
484 ASSERT(att
->Type
== GL_NONE
);
492 * Test if the given framebuffer object is complete and update its
493 * Status field with the results.
494 * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
495 * driver to make hardware-specific validation/completeness checks.
496 * Also update the framebuffer's Width and Height fields if the
497 * framebuffer is complete.
500 _mesa_test_framebuffer_completeness(GLcontext
*ctx
, struct gl_framebuffer
*fb
)
503 GLenum intFormat
= GL_NONE
; /* color buffers' internal format */
504 GLuint minWidth
= ~0, minHeight
= ~0, maxWidth
= 0, maxHeight
= 0;
505 GLint numSamples
= -1;
509 assert(fb
->Name
!= 0);
515 /* Start at -2 to more easily loop over all attachment points.
520 for (i
= -2; i
< (GLint
) ctx
->Const
.MaxColorAttachments
; i
++) {
521 struct gl_renderbuffer_attachment
*att
;
525 * XXX for ARB_fbo, only check color buffers that are named by
526 * GL_READ_BUFFER and GL_DRAW_BUFFERi.
529 /* check for attachment completeness
532 att
= &fb
->Attachment
[BUFFER_DEPTH
];
533 test_attachment_completeness(ctx
, GL_DEPTH
, att
);
534 if (!att
->Complete
) {
535 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
536 fbo_incomplete("depth attachment incomplete", -1);
541 att
= &fb
->Attachment
[BUFFER_STENCIL
];
542 test_attachment_completeness(ctx
, GL_STENCIL
, att
);
543 if (!att
->Complete
) {
544 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
545 fbo_incomplete("stencil attachment incomplete", -1);
550 att
= &fb
->Attachment
[BUFFER_COLOR0
+ i
];
551 test_attachment_completeness(ctx
, GL_COLOR
, att
);
552 if (!att
->Complete
) {
553 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
554 fbo_incomplete("color attachment incomplete", i
);
559 /* get width, height, format of the renderbuffer/texture
561 if (att
->Type
== GL_TEXTURE
) {
562 const struct gl_texture_image
*texImg
563 = att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
564 minWidth
= MIN2(minWidth
, texImg
->Width
);
565 maxWidth
= MAX2(maxWidth
, texImg
->Width
);
566 minHeight
= MIN2(minHeight
, texImg
->Height
);
567 maxHeight
= MAX2(maxHeight
, texImg
->Height
);
568 f
= texImg
->_BaseFormat
;
570 if (f
!= GL_RGB
&& f
!= GL_RGBA
&& f
!= GL_DEPTH_COMPONENT
571 && f
!= GL_DEPTH_STENCIL_EXT
) {
572 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
573 fbo_incomplete("texture attachment incomplete", -1);
577 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
578 minWidth
= MIN2(minWidth
, att
->Renderbuffer
->Width
);
579 maxWidth
= MAX2(minWidth
, att
->Renderbuffer
->Width
);
580 minHeight
= MIN2(minHeight
, att
->Renderbuffer
->Height
);
581 maxHeight
= MAX2(minHeight
, att
->Renderbuffer
->Height
);
582 f
= att
->Renderbuffer
->InternalFormat
;
586 assert(att
->Type
== GL_NONE
);
590 if (numSamples
< 0) {
592 numSamples
= att
->Renderbuffer
->NumSamples
;
595 /* Error-check width, height, format, samples
597 if (numImages
== 1) {
598 /* save format, num samples */
604 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
605 /* check that width, height, format are same */
606 if (minWidth
!= maxWidth
|| minHeight
!= maxHeight
) {
607 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
;
608 fbo_incomplete("width or height mismatch", -1);
611 /* check that all color buffer have same format */
612 if (intFormat
!= GL_NONE
&& f
!= intFormat
) {
613 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
614 fbo_incomplete("format mismatch", -1);
618 if (att
->Renderbuffer
&&
619 att
->Renderbuffer
->NumSamples
!= numSamples
) {
620 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
621 fbo_incomplete("inconsistant number of samples", i
);
628 #ifndef FEATURE_OES_framebuffer_object
629 /* Check that all DrawBuffers are present */
630 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
631 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
632 const struct gl_renderbuffer_attachment
*att
633 = _mesa_get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
]);
635 if (att
->Type
== GL_NONE
) {
636 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
637 fbo_incomplete("missing drawbuffer", j
);
643 /* Check that the ReadBuffer is present */
644 if (fb
->ColorReadBuffer
!= GL_NONE
) {
645 const struct gl_renderbuffer_attachment
*att
646 = _mesa_get_attachment(ctx
, fb
, fb
->ColorReadBuffer
);
648 if (att
->Type
== GL_NONE
) {
649 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
650 fbo_incomplete("missing readbuffer", -1);
658 if (numImages
== 0) {
659 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
660 fbo_incomplete("no attachments", -1);
664 /* Provisionally set status = COMPLETE ... */
665 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
667 /* ... but the driver may say the FB is incomplete.
668 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
671 if (ctx
->Driver
.ValidateFramebuffer
) {
672 ctx
->Driver
.ValidateFramebuffer(ctx
, fb
);
673 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
674 fbo_incomplete("driver marked FBO as incomplete", -1);
678 if (fb
->_Status
== GL_FRAMEBUFFER_COMPLETE_EXT
) {
680 * Note that if ARB_framebuffer_object is supported and the attached
681 * renderbuffers/textures are different sizes, the framebuffer
682 * width/height will be set to the smallest width/height.
684 fb
->Width
= minWidth
;
685 fb
->Height
= minHeight
;
687 /* finally, update the visual info for the framebuffer */
688 _mesa_update_framebuffer_visual(fb
);
694 _mesa_IsRenderbufferEXT(GLuint renderbuffer
)
696 GET_CURRENT_CONTEXT(ctx
);
697 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
699 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
700 if (rb
!= NULL
&& rb
!= &DummyRenderbuffer
)
708 _mesa_BindRenderbufferEXT(GLenum target
, GLuint renderbuffer
)
710 struct gl_renderbuffer
*newRb
;
711 GET_CURRENT_CONTEXT(ctx
);
713 ASSERT_OUTSIDE_BEGIN_END(ctx
);
715 if (target
!= GL_RENDERBUFFER_EXT
) {
716 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindRenderbufferEXT(target)");
720 /* No need to flush here since the render buffer binding has no
721 * effect on rendering state.
725 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
726 if (newRb
== &DummyRenderbuffer
) {
727 /* ID was reserved, but no real renderbuffer object made yet */
730 else if (!newRb
&& ctx
->Extensions
.ARB_framebuffer_object
) {
731 /* All RB IDs must be Gen'd */
732 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindRenderbuffer(buffer)");
737 /* create new renderbuffer object */
738 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
740 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindRenderbufferEXT");
743 ASSERT(newRb
->AllocStorage
);
744 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
745 newRb
->RefCount
= 1; /* referenced by hash table */
752 ASSERT(newRb
!= &DummyRenderbuffer
);
754 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
759 * If the given renderbuffer is anywhere attached to the framebuffer, detach
761 * This is used when a renderbuffer object is deleted.
762 * The spec calls for unbinding.
765 detach_renderbuffer(GLcontext
*ctx
,
766 struct gl_framebuffer
*fb
,
767 struct gl_renderbuffer
*rb
)
770 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
771 if (fb
->Attachment
[i
].Renderbuffer
== rb
) {
772 _mesa_remove_attachment(ctx
, &fb
->Attachment
[i
]);
775 invalidate_framebuffer(fb
);
780 _mesa_DeleteRenderbuffersEXT(GLsizei n
, const GLuint
*renderbuffers
)
783 GET_CURRENT_CONTEXT(ctx
);
785 ASSERT_OUTSIDE_BEGIN_END(ctx
);
786 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
788 for (i
= 0; i
< n
; i
++) {
789 if (renderbuffers
[i
] > 0) {
790 struct gl_renderbuffer
*rb
;
791 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
793 /* check if deleting currently bound renderbuffer object */
794 if (rb
== ctx
->CurrentRenderbuffer
) {
796 ASSERT(rb
->RefCount
>= 2);
797 _mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT
, 0);
800 if (ctx
->DrawBuffer
->Name
) {
801 detach_renderbuffer(ctx
, ctx
->DrawBuffer
, rb
);
803 if (ctx
->ReadBuffer
->Name
&& ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
804 detach_renderbuffer(ctx
, ctx
->ReadBuffer
, rb
);
807 /* Remove from hash table immediately, to free the ID.
808 * But the object will not be freed until it's no longer
809 * referenced anywhere else.
811 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
813 if (rb
!= &DummyRenderbuffer
) {
814 /* no longer referenced by hash table */
815 _mesa_reference_renderbuffer(&rb
, NULL
);
824 _mesa_GenRenderbuffersEXT(GLsizei n
, GLuint
*renderbuffers
)
826 GET_CURRENT_CONTEXT(ctx
);
830 ASSERT_OUTSIDE_BEGIN_END(ctx
);
833 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenRenderbuffersEXT(n)");
840 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
842 for (i
= 0; i
< n
; i
++) {
843 GLuint name
= first
+ i
;
844 renderbuffers
[i
] = name
;
845 /* insert dummy placeholder into hash table */
846 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
847 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, name
, &DummyRenderbuffer
);
848 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
854 * Given an internal format token for a render buffer, return the
855 * corresponding base format.
856 * This is very similar to _mesa_base_tex_format() but the set of valid
857 * internal formats is somewhat different.
859 * \return one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX, GL_DEPTH_COMPONENT
860 * GL_DEPTH_STENCIL_EXT or zero if error.
863 _mesa_base_fbo_format(GLcontext
*ctx
, GLenum internalFormat
)
865 switch (internalFormat
) {
884 case GL_STENCIL_INDEX
:
885 case GL_STENCIL_INDEX1_EXT
:
886 case GL_STENCIL_INDEX4_EXT
:
887 case GL_STENCIL_INDEX8_EXT
:
888 case GL_STENCIL_INDEX16_EXT
:
889 return GL_STENCIL_INDEX
;
890 case GL_DEPTH_COMPONENT
:
891 case GL_DEPTH_COMPONENT16
:
892 case GL_DEPTH_COMPONENT24
:
893 case GL_DEPTH_COMPONENT32
:
894 return GL_DEPTH_COMPONENT
;
895 case GL_DEPTH_STENCIL_EXT
:
896 case GL_DEPTH24_STENCIL8_EXT
:
897 if (ctx
->Extensions
.EXT_packed_depth_stencil
)
898 return GL_DEPTH_STENCIL_EXT
;
901 /* XXX add floating point formats eventually */
908 /** sentinal value, see below */
909 #define NO_SAMPLES 1000
913 * Helper function used by _mesa_RenderbufferStorageEXT() and
914 * _mesa_RenderbufferStorageMultisample().
915 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorageEXT().
918 renderbuffer_storage(GLenum target
, GLenum internalFormat
,
919 GLsizei width
, GLsizei height
, GLsizei samples
)
921 const char *func
= samples
== NO_SAMPLES
?
922 "glRenderbufferStorage" : "RenderbufferStorageMultisample";
923 struct gl_renderbuffer
*rb
;
925 GET_CURRENT_CONTEXT(ctx
);
927 ASSERT_OUTSIDE_BEGIN_END(ctx
);
929 if (target
!= GL_RENDERBUFFER_EXT
) {
930 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
934 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
935 if (baseFormat
== 0) {
936 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalFormat)", func
);
940 if (width
< 1 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
941 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(width)", func
);
945 if (height
< 1 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
946 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(height)", func
);
950 if (samples
== NO_SAMPLES
) {
951 /* NumSamples == 0 indicates non-multisampling */
954 else if (samples
> ctx
->Const
.MaxSamples
) {
955 /* note: driver may choose to use more samples than what's requested */
956 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(samples)", func
);
960 rb
= ctx
->CurrentRenderbuffer
;
962 _mesa_error(ctx
, GL_INVALID_OPERATION
, func
);
966 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
968 if (rb
->InternalFormat
== internalFormat
&&
969 rb
->Width
== (GLuint
) width
&&
970 rb
->Height
== (GLuint
) height
) {
971 /* no change in allocation needed */
975 /* These MUST get set by the AllocStorage func */
976 rb
->Format
= MESA_FORMAT_NONE
;
977 rb
->NumSamples
= samples
;
979 /* Now allocate the storage */
980 ASSERT(rb
->AllocStorage
);
981 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
982 /* No error - check/set fields now */
983 assert(rb
->Format
!= MESA_FORMAT_NONE
);
984 assert(rb
->Width
== (GLuint
) width
);
985 assert(rb
->Height
== (GLuint
) height
);
986 rb
->InternalFormat
= internalFormat
;
987 rb
->_BaseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
988 assert(rb
->_BaseFormat
!= 0);
991 /* Probably ran out of memory - clear the fields */
994 rb
->Format
= MESA_FORMAT_NONE
;
995 rb
->InternalFormat
= GL_NONE
;
996 rb
->_BaseFormat
= GL_NONE
;
1001 test_framebuffer_completeness(ctx, fb);
1003 /* XXX if this renderbuffer is attached anywhere, invalidate attachment
1010 * Helper function for _mesa_GetRenderbufferParameterivEXT() and
1011 * _mesa_GetFramebufferAttachmentParameterivEXT()
1012 * We have to be careful to respect the base format. For example, if a
1013 * renderbuffer/texture was created with internalFormat=GL_RGB but the
1014 * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
1015 * we need to return zero.
1018 get_component_bits(GLenum pname
, GLenum baseFormat
, gl_format format
)
1021 case GL_RENDERBUFFER_RED_SIZE_EXT
:
1022 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
1023 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
1024 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
1025 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
1026 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
1027 if (baseFormat
== GL_RGB
|| baseFormat
== GL_RGBA
)
1028 return _mesa_get_format_bits(format
, pname
);
1031 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
1032 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
1033 if (baseFormat
== GL_RGBA
|| baseFormat
== GL_ALPHA
)
1034 return _mesa_get_format_bits(format
, pname
);
1037 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
1038 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
1039 if (baseFormat
== GL_DEPTH_COMPONENT
|| baseFormat
== GL_DEPTH_STENCIL
)
1040 return _mesa_get_format_bits(format
, pname
);
1043 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
1044 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
1045 if (baseFormat
== GL_STENCIL_INDEX
|| baseFormat
== GL_DEPTH_STENCIL
)
1046 return _mesa_get_format_bits(format
, pname
);
1057 _mesa_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
1058 GLsizei width
, GLsizei height
)
1060 /* GL_ARB_fbo says calling this function is equivalent to calling
1061 * glRenderbufferStorageMultisample() with samples=0. We pass in
1062 * a token value here just for error reporting purposes.
1064 renderbuffer_storage(target
, internalFormat
, width
, height
, NO_SAMPLES
);
1069 _mesa_RenderbufferStorageMultisample(GLenum target
, GLsizei samples
,
1070 GLenum internalFormat
,
1071 GLsizei width
, GLsizei height
)
1073 renderbuffer_storage(target
, internalFormat
, width
, height
, samples
);
1079 _mesa_GetRenderbufferParameterivEXT(GLenum target
, GLenum pname
, GLint
*params
)
1081 struct gl_renderbuffer
*rb
;
1082 GET_CURRENT_CONTEXT(ctx
);
1084 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1086 if (target
!= GL_RENDERBUFFER_EXT
) {
1087 _mesa_error(ctx
, GL_INVALID_ENUM
,
1088 "glGetRenderbufferParameterivEXT(target)");
1092 rb
= ctx
->CurrentRenderbuffer
;
1094 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1095 "glGetRenderbufferParameterivEXT");
1099 /* No need to flush here since we're just quering state which is
1100 * not effected by rendering.
1104 case GL_RENDERBUFFER_WIDTH_EXT
:
1105 *params
= rb
->Width
;
1107 case GL_RENDERBUFFER_HEIGHT_EXT
:
1108 *params
= rb
->Height
;
1110 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
1111 *params
= rb
->InternalFormat
;
1113 case GL_RENDERBUFFER_RED_SIZE_EXT
:
1114 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
1115 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
1116 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
1117 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
1118 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
1119 *params
= get_component_bits(pname
, rb
->_BaseFormat
, rb
->Format
);
1121 case GL_RENDERBUFFER_SAMPLES
:
1122 if (ctx
->Extensions
.ARB_framebuffer_object
) {
1123 *params
= rb
->NumSamples
;
1128 _mesa_error(ctx
, GL_INVALID_ENUM
,
1129 "glGetRenderbufferParameterivEXT(target)");
1135 GLboolean GLAPIENTRY
1136 _mesa_IsFramebufferEXT(GLuint framebuffer
)
1138 GET_CURRENT_CONTEXT(ctx
);
1139 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1141 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
1142 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
1150 * Check if any of the attachments of the given framebuffer are textures
1151 * (render to texture). Call ctx->Driver.RenderTexture() for such
1155 check_begin_texture_render(GLcontext
*ctx
, struct gl_framebuffer
*fb
)
1158 ASSERT(ctx
->Driver
.RenderTexture
);
1161 return; /* can't render to texture with winsys framebuffers */
1163 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1164 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
1165 struct gl_texture_object
*texObj
= att
->Texture
;
1167 && texObj
->Image
[att
->CubeMapFace
][att
->TextureLevel
]) {
1168 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
1175 * Examine all the framebuffer's attachments to see if any are textures.
1176 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
1177 * notify the device driver that the texture image may have changed.
1180 check_end_texture_render(GLcontext
*ctx
, struct gl_framebuffer
*fb
)
1183 return; /* can't render to texture with winsys framebuffers */
1185 if (ctx
->Driver
.FinishRenderTexture
) {
1187 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1188 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
1189 if (att
->Texture
&& att
->Renderbuffer
) {
1190 ctx
->Driver
.FinishRenderTexture(ctx
, att
);
1198 _mesa_BindFramebufferEXT(GLenum target
, GLuint framebuffer
)
1200 struct gl_framebuffer
*newDrawFb
, *newReadFb
;
1201 struct gl_framebuffer
*oldDrawFb
, *oldReadFb
;
1202 GLboolean bindReadBuf
, bindDrawBuf
;
1203 GET_CURRENT_CONTEXT(ctx
);
1206 if (ctx
->Extensions
.ARB_framebuffer_object
) {
1207 ASSERT(ctx
->Extensions
.EXT_framebuffer_object
);
1208 ASSERT(ctx
->Extensions
.EXT_framebuffer_blit
);
1212 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1214 if (!ctx
->Extensions
.EXT_framebuffer_object
) {
1215 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1216 "glBindFramebufferEXT(unsupported)");
1221 #if FEATURE_EXT_framebuffer_blit
1222 case GL_DRAW_FRAMEBUFFER_EXT
:
1223 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1224 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
1227 bindDrawBuf
= GL_TRUE
;
1228 bindReadBuf
= GL_FALSE
;
1230 case GL_READ_FRAMEBUFFER_EXT
:
1231 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1232 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
1235 bindDrawBuf
= GL_FALSE
;
1236 bindReadBuf
= GL_TRUE
;
1239 case GL_FRAMEBUFFER_EXT
:
1240 bindDrawBuf
= GL_TRUE
;
1241 bindReadBuf
= GL_TRUE
;
1244 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
1249 /* Binding a user-created framebuffer object */
1250 newDrawFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
1251 if (newDrawFb
== &DummyFramebuffer
) {
1252 /* ID was reserved, but no real framebuffer object made yet */
1255 else if (!newDrawFb
&& ctx
->Extensions
.ARB_framebuffer_object
) {
1256 /* All FBO IDs must be Gen'd */
1257 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindFramebuffer(buffer)");
1262 /* create new framebuffer object */
1263 newDrawFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
1265 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
1268 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newDrawFb
);
1270 newReadFb
= newDrawFb
;
1273 /* Binding the window system framebuffer (which was originally set
1274 * with MakeCurrent).
1276 newDrawFb
= ctx
->WinSysDrawBuffer
;
1277 newReadFb
= ctx
->WinSysReadBuffer
;
1281 ASSERT(newDrawFb
!= &DummyFramebuffer
);
1283 /* save pointers to current/old framebuffers */
1284 oldDrawFb
= ctx
->DrawBuffer
;
1285 oldReadFb
= ctx
->ReadBuffer
;
1287 /* check if really changing bindings */
1288 if (oldDrawFb
== newDrawFb
)
1289 bindDrawBuf
= GL_FALSE
;
1290 if (oldReadFb
== newReadFb
)
1291 bindReadBuf
= GL_FALSE
;
1294 * OK, now bind the new Draw/Read framebuffers, if they're changing.
1296 * We also check if we're beginning and/or ending render-to-texture.
1297 * When a framebuffer with texture attachments is unbound, call
1298 * ctx->Driver.FinishRenderTexture().
1299 * When a framebuffer with texture attachments is bound, call
1300 * ctx->Driver.RenderTexture().
1302 * Note that if the ReadBuffer has texture attachments we don't consider
1303 * that a render-to-texture case.
1306 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1308 /* check if old readbuffer was render-to-texture */
1309 check_end_texture_render(ctx
, oldReadFb
);
1311 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newReadFb
);
1315 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1317 /* check if old read/draw buffers were render-to-texture */
1319 check_end_texture_render(ctx
, oldReadFb
);
1321 if (oldDrawFb
!= oldReadFb
)
1322 check_end_texture_render(ctx
, oldDrawFb
);
1324 /* check if newly bound framebuffer has any texture attachments */
1325 check_begin_texture_render(ctx
, newDrawFb
);
1327 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newDrawFb
);
1330 if ((bindDrawBuf
|| bindReadBuf
) && ctx
->Driver
.BindFramebuffer
) {
1331 ctx
->Driver
.BindFramebuffer(ctx
, target
, newDrawFb
, newReadFb
);
1337 _mesa_DeleteFramebuffersEXT(GLsizei n
, const GLuint
*framebuffers
)
1340 GET_CURRENT_CONTEXT(ctx
);
1342 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1343 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1345 for (i
= 0; i
< n
; i
++) {
1346 if (framebuffers
[i
] > 0) {
1347 struct gl_framebuffer
*fb
;
1348 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
1350 ASSERT(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
1352 /* check if deleting currently bound framebuffer object */
1353 if (fb
== ctx
->DrawBuffer
) {
1355 ASSERT(fb
->RefCount
>= 2);
1356 _mesa_BindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT
, 0);
1358 if (fb
== ctx
->ReadBuffer
) {
1360 ASSERT(fb
->RefCount
>= 2);
1361 _mesa_BindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT
, 0);
1364 /* remove from hash table immediately, to free the ID */
1365 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
1367 if (fb
!= &DummyFramebuffer
) {
1368 /* But the object will not be freed until it's no longer
1369 * bound in any context.
1371 _mesa_reference_framebuffer(&fb
, NULL
);
1380 _mesa_GenFramebuffersEXT(GLsizei n
, GLuint
*framebuffers
)
1382 GET_CURRENT_CONTEXT(ctx
);
1386 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1389 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenFramebuffersEXT(n)");
1396 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
1398 for (i
= 0; i
< n
; i
++) {
1399 GLuint name
= first
+ i
;
1400 framebuffers
[i
] = name
;
1401 /* insert dummy placeholder into hash table */
1402 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1403 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, name
, &DummyFramebuffer
);
1404 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1411 _mesa_CheckFramebufferStatusEXT(GLenum target
)
1413 struct gl_framebuffer
*buffer
;
1414 GET_CURRENT_CONTEXT(ctx
);
1416 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
1419 #if FEATURE_EXT_framebuffer_blit
1420 case GL_DRAW_FRAMEBUFFER_EXT
:
1421 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1422 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
1425 buffer
= ctx
->DrawBuffer
;
1427 case GL_READ_FRAMEBUFFER_EXT
:
1428 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1429 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
1432 buffer
= ctx
->ReadBuffer
;
1435 case GL_FRAMEBUFFER_EXT
:
1436 buffer
= ctx
->DrawBuffer
;
1439 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
1440 return 0; /* formerly GL_FRAMEBUFFER_STATUS_ERROR_EXT */
1443 if (buffer
->Name
== 0) {
1444 /* The window system / default framebuffer is always complete */
1445 return GL_FRAMEBUFFER_COMPLETE_EXT
;
1448 /* No need to flush here */
1450 if (buffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE
) {
1451 _mesa_test_framebuffer_completeness(ctx
, buffer
);
1454 return buffer
->_Status
;
1460 * Common code called by glFramebufferTexture1D/2D/3DEXT().
1463 framebuffer_texture(GLcontext
*ctx
, const char *caller
, GLenum target
,
1464 GLenum attachment
, GLenum textarget
, GLuint texture
,
1465 GLint level
, GLint zoffset
)
1467 struct gl_renderbuffer_attachment
*att
;
1468 struct gl_texture_object
*texObj
= NULL
;
1469 struct gl_framebuffer
*fb
;
1470 GLboolean error
= GL_FALSE
;
1472 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1475 case GL_READ_FRAMEBUFFER_EXT
:
1476 error
= !ctx
->Extensions
.EXT_framebuffer_blit
;
1477 fb
= ctx
->ReadBuffer
;
1479 case GL_DRAW_FRAMEBUFFER_EXT
:
1480 error
= !ctx
->Extensions
.EXT_framebuffer_blit
;
1482 case GL_FRAMEBUFFER_EXT
:
1483 fb
= ctx
->DrawBuffer
;
1490 _mesa_error(ctx
, GL_INVALID_ENUM
,
1491 "glFramebufferTexture%sEXT(target=0x%x)", caller
, target
);
1497 /* check framebuffer binding */
1498 if (fb
->Name
== 0) {
1499 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1500 "glFramebufferTexture%sEXT", caller
);
1505 /* The textarget, level, and zoffset parameters are only validated if
1506 * texture is non-zero.
1509 GLboolean err
= GL_TRUE
;
1511 texObj
= _mesa_lookup_texture(ctx
, texture
);
1512 if (texObj
!= NULL
) {
1513 if (textarget
== 0) {
1514 err
= (texObj
->Target
!= GL_TEXTURE_3D
) &&
1515 (texObj
->Target
!= GL_TEXTURE_1D_ARRAY_EXT
) &&
1516 (texObj
->Target
!= GL_TEXTURE_2D_ARRAY_EXT
);
1519 err
= (texObj
->Target
== GL_TEXTURE_CUBE_MAP
)
1520 ? !IS_CUBE_FACE(textarget
)
1521 : (texObj
->Target
!= textarget
);
1526 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1527 "glFramebufferTexture%sEXT(texture target mismatch)",
1532 if (texObj
->Target
== GL_TEXTURE_3D
) {
1533 const GLint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
1534 if (zoffset
< 0 || zoffset
>= maxSize
) {
1535 _mesa_error(ctx
, GL_INVALID_VALUE
,
1536 "glFramebufferTexture%sEXT(zoffset)", caller
);
1540 else if ((texObj
->Target
== GL_TEXTURE_1D_ARRAY_EXT
) ||
1541 (texObj
->Target
== GL_TEXTURE_2D_ARRAY_EXT
)) {
1542 if (zoffset
< 0 || zoffset
>= ctx
->Const
.MaxArrayTextureLayers
) {
1543 _mesa_error(ctx
, GL_INVALID_VALUE
,
1544 "glFramebufferTexture%sEXT(layer)", caller
);
1550 (level
>= _mesa_max_texture_levels(ctx
, texObj
->Target
))) {
1551 _mesa_error(ctx
, GL_INVALID_VALUE
,
1552 "glFramebufferTexture%sEXT(level)", caller
);
1557 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
1559 _mesa_error(ctx
, GL_INVALID_ENUM
,
1560 "glFramebufferTexture%sEXT(attachment)", caller
);
1564 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1566 _glthread_LOCK_MUTEX(fb
->Mutex
);
1568 _mesa_set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
1570 /* Set the render-to-texture flag. We'll check this flag in
1571 * glTexImage() and friends to determine if we need to revalidate
1572 * any FBOs that might be rendering into this texture.
1573 * This flag never gets cleared since it's non-trivial to determine
1574 * when all FBOs might be done rendering to this texture. That's OK
1575 * though since it's uncommon to render to a texture then repeatedly
1576 * call glTexImage() to change images in the texture.
1578 texObj
->_RenderToTexture
= GL_TRUE
;
1581 _mesa_remove_attachment(ctx
, att
);
1584 invalidate_framebuffer(fb
);
1586 _glthread_UNLOCK_MUTEX(fb
->Mutex
);
1592 _mesa_FramebufferTexture1DEXT(GLenum target
, GLenum attachment
,
1593 GLenum textarget
, GLuint texture
, GLint level
)
1595 GET_CURRENT_CONTEXT(ctx
);
1597 if ((texture
!= 0) && (textarget
!= GL_TEXTURE_1D
)) {
1598 _mesa_error(ctx
, GL_INVALID_ENUM
,
1599 "glFramebufferTexture1DEXT(textarget)");
1603 framebuffer_texture(ctx
, "1D", target
, attachment
, textarget
, texture
,
1609 _mesa_FramebufferTexture2DEXT(GLenum target
, GLenum attachment
,
1610 GLenum textarget
, GLuint texture
, GLint level
)
1612 GET_CURRENT_CONTEXT(ctx
);
1614 if ((texture
!= 0) &&
1615 (textarget
!= GL_TEXTURE_2D
) &&
1616 (textarget
!= GL_TEXTURE_RECTANGLE_ARB
) &&
1617 (!IS_CUBE_FACE(textarget
))) {
1618 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1619 "glFramebufferTexture2DEXT(textarget=0x%x)", textarget
);
1623 framebuffer_texture(ctx
, "2D", target
, attachment
, textarget
, texture
,
1629 _mesa_FramebufferTexture3DEXT(GLenum target
, GLenum attachment
,
1630 GLenum textarget
, GLuint texture
,
1631 GLint level
, GLint zoffset
)
1633 GET_CURRENT_CONTEXT(ctx
);
1635 if ((texture
!= 0) && (textarget
!= GL_TEXTURE_3D
)) {
1636 _mesa_error(ctx
, GL_INVALID_ENUM
,
1637 "glFramebufferTexture3DEXT(textarget)");
1641 framebuffer_texture(ctx
, "3D", target
, attachment
, textarget
, texture
,
1647 _mesa_FramebufferTextureLayerEXT(GLenum target
, GLenum attachment
,
1648 GLuint texture
, GLint level
, GLint layer
)
1650 GET_CURRENT_CONTEXT(ctx
);
1652 framebuffer_texture(ctx
, "Layer", target
, attachment
, 0, texture
,
1658 _mesa_FramebufferRenderbufferEXT(GLenum target
, GLenum attachment
,
1659 GLenum renderbufferTarget
,
1660 GLuint renderbuffer
)
1662 struct gl_renderbuffer_attachment
*att
;
1663 struct gl_framebuffer
*fb
;
1664 struct gl_renderbuffer
*rb
;
1665 GET_CURRENT_CONTEXT(ctx
);
1667 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1670 #if FEATURE_EXT_framebuffer_blit
1671 case GL_DRAW_FRAMEBUFFER_EXT
:
1672 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1673 _mesa_error(ctx
, GL_INVALID_ENUM
,
1674 "glFramebufferRenderbufferEXT(target)");
1677 fb
= ctx
->DrawBuffer
;
1679 case GL_READ_FRAMEBUFFER_EXT
:
1680 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1681 _mesa_error(ctx
, GL_INVALID_ENUM
,
1682 "glFramebufferRenderbufferEXT(target)");
1685 fb
= ctx
->ReadBuffer
;
1688 case GL_FRAMEBUFFER_EXT
:
1689 fb
= ctx
->DrawBuffer
;
1692 _mesa_error(ctx
, GL_INVALID_ENUM
,
1693 "glFramebufferRenderbufferEXT(target)");
1697 if (renderbufferTarget
!= GL_RENDERBUFFER_EXT
) {
1698 _mesa_error(ctx
, GL_INVALID_ENUM
,
1699 "glFramebufferRenderbufferEXT(renderbufferTarget)");
1703 if (fb
->Name
== 0) {
1704 /* Can't attach new renderbuffers to a window system framebuffer */
1705 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glFramebufferRenderbufferEXT");
1709 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
1711 _mesa_error(ctx
, GL_INVALID_ENUM
,
1712 "glFramebufferRenderbufferEXT(invalid attachment %s)",
1713 _mesa_lookup_enum_by_nr(attachment
));
1718 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1720 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1721 "glFramebufferRenderbufferEXT(non-existant"
1722 " renderbuffer %u)", renderbuffer
);
1727 /* remove renderbuffer attachment */
1731 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
1732 /* make sure the renderbuffer is a depth/stencil format */
1733 const GLenum baseFormat
=
1734 _mesa_get_format_base_format(att
->Renderbuffer
->Format
);
1735 if (baseFormat
!= GL_DEPTH_STENCIL
) {
1736 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1737 "glFramebufferRenderbufferEXT(renderbuffer"
1738 " is not DEPTH_STENCIL format)");
1744 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1746 assert(ctx
->Driver
.FramebufferRenderbuffer
);
1747 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
1749 /* Some subsequent GL commands may depend on the framebuffer's visual
1750 * after the binding is updated. Update visual info now.
1752 _mesa_update_framebuffer_visual(fb
);
1757 _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target
, GLenum attachment
,
1758 GLenum pname
, GLint
*params
)
1760 const struct gl_renderbuffer_attachment
*att
;
1761 struct gl_framebuffer
*buffer
;
1762 GET_CURRENT_CONTEXT(ctx
);
1764 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1767 #if FEATURE_EXT_framebuffer_blit
1768 case GL_DRAW_FRAMEBUFFER_EXT
:
1769 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1770 _mesa_error(ctx
, GL_INVALID_ENUM
,
1771 "glGetFramebufferAttachmentParameterivEXT(target)");
1774 buffer
= ctx
->DrawBuffer
;
1776 case GL_READ_FRAMEBUFFER_EXT
:
1777 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1778 _mesa_error(ctx
, GL_INVALID_ENUM
,
1779 "glGetFramebufferAttachmentParameterivEXT(target)");
1782 buffer
= ctx
->ReadBuffer
;
1785 case GL_FRAMEBUFFER_EXT
:
1786 buffer
= ctx
->DrawBuffer
;
1789 _mesa_error(ctx
, GL_INVALID_ENUM
,
1790 "glGetFramebufferAttachmentParameterivEXT(target)");
1794 if (buffer
->Name
== 0) {
1795 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1796 "glGetFramebufferAttachmentParameterivEXT");
1800 att
= _mesa_get_attachment(ctx
, buffer
, attachment
);
1802 _mesa_error(ctx
, GL_INVALID_ENUM
,
1803 "glGetFramebufferAttachmentParameterivEXT(attachment)");
1807 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
1808 /* the depth and stencil attachments must point to the same buffer */
1809 const struct gl_renderbuffer_attachment
*depthAtt
, *stencilAtt
;
1810 depthAtt
= _mesa_get_attachment(ctx
, buffer
, GL_DEPTH_ATTACHMENT
);
1811 stencilAtt
= _mesa_get_attachment(ctx
, buffer
, GL_STENCIL_ATTACHMENT
);
1812 if (depthAtt
->Renderbuffer
!= stencilAtt
->Renderbuffer
) {
1813 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1814 "glGetFramebufferAttachmentParameterivEXT(DEPTH/STENCIL"
1815 " attachments differ)");
1820 /* No need to flush here */
1823 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
1824 *params
= att
->Type
;
1826 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
1827 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
1828 *params
= att
->Renderbuffer
->Name
;
1830 else if (att
->Type
== GL_TEXTURE
) {
1831 *params
= att
->Texture
->Name
;
1834 _mesa_error(ctx
, GL_INVALID_ENUM
,
1835 "glGetFramebufferAttachmentParameterivEXT(pname)");
1838 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
1839 if (att
->Type
== GL_TEXTURE
) {
1840 *params
= att
->TextureLevel
;
1843 _mesa_error(ctx
, GL_INVALID_ENUM
,
1844 "glGetFramebufferAttachmentParameterivEXT(pname)");
1847 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
1848 if (att
->Type
== GL_TEXTURE
) {
1849 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
1850 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
1857 _mesa_error(ctx
, GL_INVALID_ENUM
,
1858 "glGetFramebufferAttachmentParameterivEXT(pname)");
1861 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
1862 if (att
->Type
== GL_TEXTURE
) {
1863 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_3D
) {
1864 *params
= att
->Zoffset
;
1871 _mesa_error(ctx
, GL_INVALID_ENUM
,
1872 "glGetFramebufferAttachmentParameterivEXT(pname)");
1875 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
:
1876 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
1877 _mesa_error(ctx
, GL_INVALID_ENUM
,
1878 "glGetFramebufferAttachmentParameterivEXT(pname)");
1881 *params
= _mesa_get_format_color_encoding(att
->Renderbuffer
->Format
);
1884 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
:
1885 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
1886 _mesa_error(ctx
, GL_INVALID_ENUM
,
1887 "glGetFramebufferAttachmentParameterivEXT(pname)");
1891 gl_format format
= att
->Renderbuffer
->Format
;
1892 if (format
== MESA_FORMAT_CI8
|| format
== MESA_FORMAT_S8
) {
1897 *params
= _mesa_get_format_datatype(format
);
1901 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
1902 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
1903 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
1904 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
1905 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
1906 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
1907 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
1908 _mesa_error(ctx
, GL_INVALID_ENUM
,
1909 "glGetFramebufferAttachmentParameterivEXT(pname)");
1911 else if (att
->Texture
) {
1912 const struct gl_texture_image
*texImage
=
1913 _mesa_select_tex_image(ctx
, att
->Texture
, att
->Texture
->Target
,
1916 *params
= get_component_bits(pname
, texImage
->_BaseFormat
,
1917 texImage
->TexFormat
);
1923 else if (att
->Renderbuffer
) {
1924 *params
= get_component_bits(pname
, att
->Renderbuffer
->_BaseFormat
,
1925 att
->Renderbuffer
->Format
);
1932 _mesa_error(ctx
, GL_INVALID_ENUM
,
1933 "glGetFramebufferAttachmentParameterivEXT(pname)");
1940 _mesa_GenerateMipmapEXT(GLenum target
)
1942 struct gl_texture_object
*texObj
;
1943 GET_CURRENT_CONTEXT(ctx
);
1945 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1946 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1952 case GL_TEXTURE_CUBE_MAP
:
1953 /* OK, legal value */
1956 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGenerateMipmapEXT(target)");
1960 texObj
= _mesa_get_current_tex_object(ctx
, target
);
1962 if (texObj
->BaseLevel
>= texObj
->MaxLevel
) {
1967 _mesa_lock_texture(ctx
, texObj
);
1968 if (target
== GL_TEXTURE_CUBE_MAP
) {
1970 for (face
= 0; face
< 6; face
++)
1971 ctx
->Driver
.GenerateMipmap(ctx
,
1972 GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
+ face
,
1976 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
1978 _mesa_unlock_texture(ctx
, texObj
);
1982 #if FEATURE_EXT_framebuffer_blit
1984 static const struct gl_renderbuffer_attachment
*
1985 find_attachment(const struct gl_framebuffer
*fb
, const struct gl_renderbuffer
*rb
)
1988 for (i
= 0; i
< Elements(fb
->Attachment
); i
++) {
1989 if (fb
->Attachment
[i
].Renderbuffer
== rb
)
1990 return &fb
->Attachment
[i
];
1998 * Blit rectangular region, optionally from one framebuffer to another.
2000 * Note, if the src buffer is multisampled and the dest is not, this is
2001 * when the samples must be resolved to a single color.
2004 _mesa_BlitFramebufferEXT(GLint srcX0
, GLint srcY0
, GLint srcX1
, GLint srcY1
,
2005 GLint dstX0
, GLint dstY0
, GLint dstX1
, GLint dstY1
,
2006 GLbitfield mask
, GLenum filter
)
2008 const GLbitfield legalMaskBits
= (GL_COLOR_BUFFER_BIT
|
2009 GL_DEPTH_BUFFER_BIT
|
2010 GL_STENCIL_BUFFER_BIT
);
2011 const struct gl_framebuffer
*readFb
, *drawFb
;
2012 const struct gl_renderbuffer
*colorReadRb
, *colorDrawRb
;
2013 GET_CURRENT_CONTEXT(ctx
);
2015 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2016 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2018 if (ctx
->NewState
) {
2019 _mesa_update_state(ctx
);
2022 readFb
= ctx
->ReadBuffer
;
2023 drawFb
= ctx
->DrawBuffer
;
2025 if (!readFb
|| !drawFb
) {
2026 /* This will normally never happen but someday we may want to
2027 * support MakeCurrent() with no drawables.
2032 /* check for complete framebuffers */
2033 if (drawFb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
||
2034 readFb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2035 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2036 "glBlitFramebufferEXT(incomplete draw/read buffers)");
2040 if (filter
!= GL_NEAREST
&& filter
!= GL_LINEAR
) {
2041 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBlitFramebufferEXT(filter)");
2045 if (mask
& ~legalMaskBits
) {
2046 _mesa_error( ctx
, GL_INVALID_VALUE
, "glBlitFramebufferEXT(mask)");
2050 /* depth/stencil must be blitted with nearest filtering */
2051 if ((mask
& (GL_DEPTH_BUFFER_BIT
| GL_STENCIL_BUFFER_BIT
))
2052 && filter
!= GL_NEAREST
) {
2053 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2054 "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter");
2058 /* get color read/draw renderbuffers */
2059 if (mask
& GL_COLOR_BUFFER_BIT
) {
2060 colorReadRb
= readFb
->_ColorReadBuffer
;
2061 colorDrawRb
= drawFb
->_ColorDrawBuffers
[0];
2064 colorReadRb
= colorDrawRb
= NULL
;
2067 if (mask
& GL_STENCIL_BUFFER_BIT
) {
2068 struct gl_renderbuffer
*readRb
= readFb
->_StencilBuffer
;
2069 struct gl_renderbuffer
*drawRb
= drawFb
->_StencilBuffer
;
2072 _mesa_get_format_bits(readRb
->Format
, GL_STENCIL_BITS
) !=
2073 _mesa_get_format_bits(drawRb
->Format
, GL_STENCIL_BITS
)) {
2074 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2075 "glBlitFramebufferEXT(stencil buffer size mismatch");
2080 if (mask
& GL_DEPTH_BUFFER_BIT
) {
2081 struct gl_renderbuffer
*readRb
= readFb
->_DepthBuffer
;
2082 struct gl_renderbuffer
*drawRb
= drawFb
->_DepthBuffer
;
2085 _mesa_get_format_bits(readRb
->Format
, GL_DEPTH_BITS
) !=
2086 _mesa_get_format_bits(drawRb
->Format
, GL_DEPTH_BITS
)) {
2087 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2088 "glBlitFramebufferEXT(depth buffer size mismatch");
2093 if (readFb
->Visual
.samples
> 0 &&
2094 drawFb
->Visual
.samples
> 0 &&
2095 readFb
->Visual
.samples
!= drawFb
->Visual
.samples
) {
2096 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2097 "glBlitFramebufferEXT(mismatched samples");
2101 /* extra checks for multisample copies... */
2102 if (readFb
->Visual
.samples
> 0 || drawFb
->Visual
.samples
> 0) {
2103 /* src and dest region sizes must be the same */
2104 if (srcX1
- srcX0
!= dstX1
- dstX0
||
2105 srcY1
- srcY0
!= dstY1
- dstY0
) {
2106 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2107 "glBlitFramebufferEXT(bad src/dst multisample region sizes");
2111 /* color formats must match */
2114 colorReadRb
->Format
!= colorDrawRb
->Format
) {
2115 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2116 "glBlitFramebufferEXT(bad src/dst multisample pixel formats");
2121 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
2122 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBlitFramebufferEXT");
2128 _mesa_printf("glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d,"
2130 srcX0
, srcY0
, srcX1
, srcY1
,
2131 dstX0
, dstY0
, dstX1
, dstY1
,
2134 const struct gl_renderbuffer_attachment
*att
;
2136 att
= find_attachment(readFb
, colorReadRb
);
2137 _mesa_printf(" Src FBO %u RB %u (%dx%d) ",
2138 readFb
->Name
, colorReadRb
->Name
,
2139 colorReadRb
->Width
, colorReadRb
->Height
);
2140 if (att
&& att
->Texture
) {
2141 _mesa_printf("Tex %u tgt 0x%x level %u face %u",
2143 att
->Texture
->Target
,
2149 att
= find_attachment(drawFb
, colorDrawRb
);
2150 _mesa_printf(" Dst FBO %u RB %u (%dx%d) ",
2151 drawFb
->Name
, colorDrawRb
->Name
,
2152 colorDrawRb
->Width
, colorDrawRb
->Height
);
2153 if (att
&& att
->Texture
) {
2154 _mesa_printf("Tex %u tgt 0x%x level %u face %u",
2156 att
->Texture
->Target
,
2164 ASSERT(ctx
->Driver
.BlitFramebuffer
);
2165 ctx
->Driver
.BlitFramebuffer(ctx
,
2166 srcX0
, srcY0
, srcX1
, srcY1
,
2167 dstX0
, dstY0
, dstX1
, dstY1
,
2170 #endif /* FEATURE_EXT_framebuffer_blit */