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_BUFFER
:
184 /* fall-through / new in GL 3.0 */
185 case GL_DEPTH_ATTACHMENT_EXT
:
186 return &fb
->Attachment
[BUFFER_DEPTH
];
187 case GL_STENCIL_BUFFER
:
188 /* fall-through / new in GL 3.0 */
189 case GL_STENCIL_ATTACHMENT_EXT
:
190 return &fb
->Attachment
[BUFFER_STENCIL
];
198 * Remove any texture or renderbuffer attached to the given attachment
199 * point. Update reference counts, etc.
202 _mesa_remove_attachment(GLcontext
*ctx
, struct gl_renderbuffer_attachment
*att
)
204 if (att
->Type
== GL_TEXTURE
) {
205 ASSERT(att
->Texture
);
206 if (ctx
->Driver
.FinishRenderTexture
) {
207 /* tell driver that we're done rendering to this texture. */
208 ctx
->Driver
.FinishRenderTexture(ctx
, att
);
210 _mesa_reference_texobj(&att
->Texture
, NULL
); /* unbind */
211 ASSERT(!att
->Texture
);
213 if (att
->Type
== GL_TEXTURE
|| att
->Type
== GL_RENDERBUFFER_EXT
) {
214 ASSERT(!att
->Texture
);
215 _mesa_reference_renderbuffer(&att
->Renderbuffer
, NULL
); /* unbind */
216 ASSERT(!att
->Renderbuffer
);
219 att
->Complete
= GL_TRUE
;
224 * Bind a texture object to an attachment point.
225 * The previous binding, if any, will be removed first.
228 _mesa_set_texture_attachment(GLcontext
*ctx
,
229 struct gl_framebuffer
*fb
,
230 struct gl_renderbuffer_attachment
*att
,
231 struct gl_texture_object
*texObj
,
232 GLenum texTarget
, GLuint level
, GLuint zoffset
)
234 if (att
->Texture
== texObj
) {
235 /* re-attaching same texture */
236 ASSERT(att
->Type
== GL_TEXTURE
);
237 if (ctx
->Driver
.FinishRenderTexture
)
238 ctx
->Driver
.FinishRenderTexture(ctx
, att
);
242 if (ctx
->Driver
.FinishRenderTexture
&& att
->Texture
)
243 ctx
->Driver
.FinishRenderTexture(ctx
, att
);
244 _mesa_remove_attachment(ctx
, att
);
245 att
->Type
= GL_TEXTURE
;
246 assert(!att
->Texture
);
247 _mesa_reference_texobj(&att
->Texture
, texObj
);
250 /* always update these fields */
251 att
->TextureLevel
= level
;
252 att
->CubeMapFace
= _mesa_tex_target_to_face(texTarget
);
253 att
->Zoffset
= zoffset
;
254 att
->Complete
= GL_FALSE
;
256 if (att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
]) {
257 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
260 invalidate_framebuffer(fb
);
265 * Bind a renderbuffer to an attachment point.
266 * The previous binding, if any, will be removed first.
269 _mesa_set_renderbuffer_attachment(GLcontext
*ctx
,
270 struct gl_renderbuffer_attachment
*att
,
271 struct gl_renderbuffer
*rb
)
273 /* XXX check if re-doing same attachment, exit early */
274 _mesa_remove_attachment(ctx
, att
);
275 att
->Type
= GL_RENDERBUFFER_EXT
;
276 att
->Texture
= NULL
; /* just to be safe */
277 att
->Complete
= GL_FALSE
;
278 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
283 * Fallback for ctx->Driver.FramebufferRenderbuffer()
284 * Attach a renderbuffer object to a framebuffer object.
287 _mesa_framebuffer_renderbuffer(GLcontext
*ctx
, struct gl_framebuffer
*fb
,
288 GLenum attachment
, struct gl_renderbuffer
*rb
)
290 struct gl_renderbuffer_attachment
*att
;
292 _glthread_LOCK_MUTEX(fb
->Mutex
);
294 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
297 _mesa_set_renderbuffer_attachment(ctx
, att
, rb
);
298 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
299 /* do stencil attachment here (depth already done above) */
300 att
= _mesa_get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
);
302 _mesa_set_renderbuffer_attachment(ctx
, att
, rb
);
306 _mesa_remove_attachment(ctx
, att
);
309 invalidate_framebuffer(fb
);
311 _glthread_UNLOCK_MUTEX(fb
->Mutex
);
319 att_incomplete(const char *msg
)
322 _mesa_debug(NULL
, "attachment incomplete: %s\n", msg
);
333 fbo_incomplete(const char *msg
, int index
)
336 _mesa_debug(NULL
, "FBO Incomplete: %s [%d]\n", msg
, index
);
347 * Test if an attachment point is complete and update its Complete field.
348 * \param format if GL_COLOR, this is a color attachment point,
349 * if GL_DEPTH, this is a depth component attachment point,
350 * if GL_STENCIL, this is a stencil component attachment point.
353 test_attachment_completeness(const GLcontext
*ctx
, GLenum format
,
354 struct gl_renderbuffer_attachment
*att
)
356 assert(format
== GL_COLOR
|| format
== GL_DEPTH
|| format
== GL_STENCIL
);
358 /* assume complete */
359 att
->Complete
= GL_TRUE
;
361 /* Look for reasons why the attachment might be incomplete */
362 if (att
->Type
== GL_TEXTURE
) {
363 const struct gl_texture_object
*texObj
= att
->Texture
;
364 struct gl_texture_image
*texImage
;
368 att_incomplete("no texobj");
369 att
->Complete
= GL_FALSE
;
373 texImage
= texObj
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
375 att_incomplete("no teximage");
376 att
->Complete
= GL_FALSE
;
379 if (texImage
->Width
< 1 || texImage
->Height
< 1) {
380 att_incomplete("teximage width/height=0");
381 printf("texobj = %u\n", texObj
->Name
);
382 printf("level = %d\n", att
->TextureLevel
);
383 att
->Complete
= GL_FALSE
;
386 if (texObj
->Target
== GL_TEXTURE_3D
&& att
->Zoffset
>= texImage
->Depth
) {
387 att_incomplete("bad z offset");
388 att
->Complete
= GL_FALSE
;
392 baseFormat
= _mesa_get_format_base_format(texImage
->TexFormat
);
394 if (format
== GL_COLOR
) {
395 if (baseFormat
!= GL_RGB
&&
396 baseFormat
!= GL_RGBA
&&
397 (!ctx
->Extensions
.ARB_framebuffer_object
||
398 baseFormat
!= GL_ALPHA
)) {
399 att_incomplete("bad format");
400 att
->Complete
= GL_FALSE
;
403 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
404 att_incomplete("compressed internalformat");
405 att
->Complete
= GL_FALSE
;
409 else if (format
== GL_DEPTH
) {
410 if (baseFormat
== GL_DEPTH_COMPONENT
) {
413 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
414 ctx
->Extensions
.ARB_depth_texture
&&
415 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
419 att
->Complete
= GL_FALSE
;
420 att_incomplete("bad depth format");
425 ASSERT(format
== GL_STENCIL
);
426 if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
427 ctx
->Extensions
.ARB_depth_texture
&&
428 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
432 /* no such thing as stencil-only textures */
433 att_incomplete("illegal stencil texture");
434 att
->Complete
= GL_FALSE
;
439 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
440 const GLenum baseFormat
=
441 _mesa_get_format_base_format(att
->Renderbuffer
->Format
);
443 ASSERT(att
->Renderbuffer
);
444 if (!att
->Renderbuffer
->InternalFormat
||
445 att
->Renderbuffer
->Width
< 1 ||
446 att
->Renderbuffer
->Height
< 1) {
447 att_incomplete("0x0 renderbuffer");
448 att
->Complete
= GL_FALSE
;
451 if (format
== GL_COLOR
) {
452 if (baseFormat
!= GL_RGB
&&
453 baseFormat
!= GL_RGBA
) {
454 att_incomplete("bad renderbuffer color format");
455 att
->Complete
= GL_FALSE
;
459 else if (format
== GL_DEPTH
) {
460 if (baseFormat
== GL_DEPTH_COMPONENT
) {
463 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
464 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
468 att_incomplete("bad renderbuffer depth format");
469 att
->Complete
= GL_FALSE
;
474 assert(format
== GL_STENCIL
);
475 if (baseFormat
== GL_STENCIL_INDEX
) {
478 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
479 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
483 att
->Complete
= GL_FALSE
;
484 att_incomplete("bad renderbuffer stencil format");
490 ASSERT(att
->Type
== GL_NONE
);
498 * Test if the given framebuffer object is complete and update its
499 * Status field with the results.
500 * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
501 * driver to make hardware-specific validation/completeness checks.
502 * Also update the framebuffer's Width and Height fields if the
503 * framebuffer is complete.
506 _mesa_test_framebuffer_completeness(GLcontext
*ctx
, struct gl_framebuffer
*fb
)
509 GLenum intFormat
= GL_NONE
; /* color buffers' internal format */
510 GLuint minWidth
= ~0, minHeight
= ~0, maxWidth
= 0, maxHeight
= 0;
511 GLint numSamples
= -1;
515 assert(fb
->Name
!= 0);
521 /* Start at -2 to more easily loop over all attachment points.
526 for (i
= -2; i
< (GLint
) ctx
->Const
.MaxColorAttachments
; i
++) {
527 struct gl_renderbuffer_attachment
*att
;
531 * XXX for ARB_fbo, only check color buffers that are named by
532 * GL_READ_BUFFER and GL_DRAW_BUFFERi.
535 /* check for attachment completeness
538 att
= &fb
->Attachment
[BUFFER_DEPTH
];
539 test_attachment_completeness(ctx
, GL_DEPTH
, att
);
540 if (!att
->Complete
) {
541 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
542 fbo_incomplete("depth attachment incomplete", -1);
547 att
= &fb
->Attachment
[BUFFER_STENCIL
];
548 test_attachment_completeness(ctx
, GL_STENCIL
, att
);
549 if (!att
->Complete
) {
550 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
551 fbo_incomplete("stencil attachment incomplete", -1);
556 att
= &fb
->Attachment
[BUFFER_COLOR0
+ i
];
557 test_attachment_completeness(ctx
, GL_COLOR
, att
);
558 if (!att
->Complete
) {
559 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
560 fbo_incomplete("color attachment incomplete", i
);
565 /* get width, height, format of the renderbuffer/texture
567 if (att
->Type
== GL_TEXTURE
) {
568 const struct gl_texture_image
*texImg
569 = att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
570 minWidth
= MIN2(minWidth
, texImg
->Width
);
571 maxWidth
= MAX2(maxWidth
, texImg
->Width
);
572 minHeight
= MIN2(minHeight
, texImg
->Height
);
573 maxHeight
= MAX2(maxHeight
, texImg
->Height
);
574 f
= texImg
->_BaseFormat
;
576 if (f
!= GL_RGB
&& f
!= GL_RGBA
&& f
!= GL_DEPTH_COMPONENT
577 && f
!= GL_DEPTH_STENCIL_EXT
578 && (!ctx
->Extensions
.ARB_framebuffer_object
|| f
!= GL_ALPHA
)) {
579 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
580 fbo_incomplete("texture attachment incomplete", -1);
584 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
585 minWidth
= MIN2(minWidth
, att
->Renderbuffer
->Width
);
586 maxWidth
= MAX2(minWidth
, att
->Renderbuffer
->Width
);
587 minHeight
= MIN2(minHeight
, att
->Renderbuffer
->Height
);
588 maxHeight
= MAX2(minHeight
, att
->Renderbuffer
->Height
);
589 f
= att
->Renderbuffer
->InternalFormat
;
593 assert(att
->Type
== GL_NONE
);
597 if (numSamples
< 0) {
599 numSamples
= att
->Renderbuffer
->NumSamples
;
602 /* Error-check width, height, format, samples
604 if (numImages
== 1) {
605 /* save format, num samples */
611 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
612 /* check that width, height, format are same */
613 if (minWidth
!= maxWidth
|| minHeight
!= maxHeight
) {
614 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
;
615 fbo_incomplete("width or height mismatch", -1);
618 /* check that all color buffer have same format */
619 if (intFormat
!= GL_NONE
&& f
!= intFormat
) {
620 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
621 fbo_incomplete("format mismatch", -1);
625 if (att
->Renderbuffer
&&
626 att
->Renderbuffer
->NumSamples
!= numSamples
) {
627 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
628 fbo_incomplete("inconsistant number of samples", i
);
636 if (ctx
->API
== API_OPENGL
) {
637 /* Check that all DrawBuffers are present */
638 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
639 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
640 const struct gl_renderbuffer_attachment
*att
641 = _mesa_get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
]);
643 if (att
->Type
== GL_NONE
) {
644 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
645 fbo_incomplete("missing drawbuffer", j
);
651 /* Check that the ReadBuffer is present */
652 if (fb
->ColorReadBuffer
!= GL_NONE
) {
653 const struct gl_renderbuffer_attachment
*att
654 = _mesa_get_attachment(ctx
, fb
, fb
->ColorReadBuffer
);
656 if (att
->Type
== GL_NONE
) {
657 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
658 fbo_incomplete("missing readbuffer", -1);
667 if (numImages
== 0) {
668 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
669 fbo_incomplete("no attachments", -1);
673 /* Provisionally set status = COMPLETE ... */
674 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
676 /* ... but the driver may say the FB is incomplete.
677 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
680 if (ctx
->Driver
.ValidateFramebuffer
) {
681 ctx
->Driver
.ValidateFramebuffer(ctx
, fb
);
682 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
683 fbo_incomplete("driver marked FBO as incomplete", -1);
687 if (fb
->_Status
== GL_FRAMEBUFFER_COMPLETE_EXT
) {
689 * Note that if ARB_framebuffer_object is supported and the attached
690 * renderbuffers/textures are different sizes, the framebuffer
691 * width/height will be set to the smallest width/height.
693 fb
->Width
= minWidth
;
694 fb
->Height
= minHeight
;
696 /* finally, update the visual info for the framebuffer */
697 _mesa_update_framebuffer_visual(fb
);
703 _mesa_IsRenderbufferEXT(GLuint renderbuffer
)
705 GET_CURRENT_CONTEXT(ctx
);
706 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
708 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
709 if (rb
!= NULL
&& rb
!= &DummyRenderbuffer
)
717 _mesa_BindRenderbufferEXT(GLenum target
, GLuint renderbuffer
)
719 struct gl_renderbuffer
*newRb
;
720 GET_CURRENT_CONTEXT(ctx
);
722 ASSERT_OUTSIDE_BEGIN_END(ctx
);
724 if (target
!= GL_RENDERBUFFER_EXT
) {
725 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindRenderbufferEXT(target)");
729 /* No need to flush here since the render buffer binding has no
730 * effect on rendering state.
734 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
735 if (newRb
== &DummyRenderbuffer
) {
736 /* ID was reserved, but no real renderbuffer object made yet */
739 else if (!newRb
&& ctx
->Extensions
.ARB_framebuffer_object
) {
740 /* All RB IDs must be Gen'd */
741 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindRenderbuffer(buffer)");
746 /* create new renderbuffer object */
747 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
749 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindRenderbufferEXT");
752 ASSERT(newRb
->AllocStorage
);
753 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
754 newRb
->RefCount
= 1; /* referenced by hash table */
761 ASSERT(newRb
!= &DummyRenderbuffer
);
763 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
768 * If the given renderbuffer is anywhere attached to the framebuffer, detach
770 * This is used when a renderbuffer object is deleted.
771 * The spec calls for unbinding.
774 detach_renderbuffer(GLcontext
*ctx
,
775 struct gl_framebuffer
*fb
,
776 struct gl_renderbuffer
*rb
)
779 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
780 if (fb
->Attachment
[i
].Renderbuffer
== rb
) {
781 _mesa_remove_attachment(ctx
, &fb
->Attachment
[i
]);
784 invalidate_framebuffer(fb
);
789 _mesa_DeleteRenderbuffersEXT(GLsizei n
, const GLuint
*renderbuffers
)
792 GET_CURRENT_CONTEXT(ctx
);
794 ASSERT_OUTSIDE_BEGIN_END(ctx
);
795 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
797 for (i
= 0; i
< n
; i
++) {
798 if (renderbuffers
[i
] > 0) {
799 struct gl_renderbuffer
*rb
;
800 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
802 /* check if deleting currently bound renderbuffer object */
803 if (rb
== ctx
->CurrentRenderbuffer
) {
805 ASSERT(rb
->RefCount
>= 2);
806 _mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT
, 0);
809 if (ctx
->DrawBuffer
->Name
) {
810 detach_renderbuffer(ctx
, ctx
->DrawBuffer
, rb
);
812 if (ctx
->ReadBuffer
->Name
&& ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
813 detach_renderbuffer(ctx
, ctx
->ReadBuffer
, rb
);
816 /* Remove from hash table immediately, to free the ID.
817 * But the object will not be freed until it's no longer
818 * referenced anywhere else.
820 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
822 if (rb
!= &DummyRenderbuffer
) {
823 /* no longer referenced by hash table */
824 _mesa_reference_renderbuffer(&rb
, NULL
);
833 _mesa_GenRenderbuffersEXT(GLsizei n
, GLuint
*renderbuffers
)
835 GET_CURRENT_CONTEXT(ctx
);
839 ASSERT_OUTSIDE_BEGIN_END(ctx
);
842 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenRenderbuffersEXT(n)");
849 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
851 for (i
= 0; i
< n
; i
++) {
852 GLuint name
= first
+ i
;
853 renderbuffers
[i
] = name
;
854 /* insert dummy placeholder into hash table */
855 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
856 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, name
, &DummyRenderbuffer
);
857 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
863 * Given an internal format token for a render buffer, return the
864 * corresponding base format.
865 * This is very similar to _mesa_base_tex_format() but the set of valid
866 * internal formats is somewhat different.
868 * \return one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX, GL_DEPTH_COMPONENT
869 * GL_DEPTH_STENCIL_EXT or zero if error.
871 * XXX in the future when we support red-only and red-green formats
872 * we'll also return GL_RED and GL_RG.
875 _mesa_base_fbo_format(GLcontext
*ctx
, GLenum internalFormat
)
877 switch (internalFormat
) {
895 case GL_RGBA16_SNORM
:
897 case GL_STENCIL_INDEX
:
898 case GL_STENCIL_INDEX1_EXT
:
899 case GL_STENCIL_INDEX4_EXT
:
900 case GL_STENCIL_INDEX8_EXT
:
901 case GL_STENCIL_INDEX16_EXT
:
902 return GL_STENCIL_INDEX
;
903 case GL_DEPTH_COMPONENT
:
904 case GL_DEPTH_COMPONENT16
:
905 case GL_DEPTH_COMPONENT24
:
906 case GL_DEPTH_COMPONENT32
:
907 return GL_DEPTH_COMPONENT
;
908 case GL_DEPTH_STENCIL_EXT
:
909 case GL_DEPTH24_STENCIL8_EXT
:
910 if (ctx
->Extensions
.EXT_packed_depth_stencil
)
911 return GL_DEPTH_STENCIL_EXT
;
914 /* XXX add floating point formats eventually */
921 /** sentinal value, see below */
922 #define NO_SAMPLES 1000
926 * Helper function used by _mesa_RenderbufferStorageEXT() and
927 * _mesa_RenderbufferStorageMultisample().
928 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorageEXT().
931 renderbuffer_storage(GLenum target
, GLenum internalFormat
,
932 GLsizei width
, GLsizei height
, GLsizei samples
)
934 const char *func
= samples
== NO_SAMPLES
?
935 "glRenderbufferStorage" : "RenderbufferStorageMultisample";
936 struct gl_renderbuffer
*rb
;
938 GET_CURRENT_CONTEXT(ctx
);
940 ASSERT_OUTSIDE_BEGIN_END(ctx
);
942 if (target
!= GL_RENDERBUFFER_EXT
) {
943 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
947 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
948 if (baseFormat
== 0) {
949 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalFormat)", func
);
953 if (width
< 1 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
954 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(width)", func
);
958 if (height
< 1 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
959 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(height)", func
);
963 if (samples
== NO_SAMPLES
) {
964 /* NumSamples == 0 indicates non-multisampling */
967 else if (samples
> (GLsizei
) ctx
->Const
.MaxSamples
) {
968 /* note: driver may choose to use more samples than what's requested */
969 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(samples)", func
);
973 rb
= ctx
->CurrentRenderbuffer
;
975 _mesa_error(ctx
, GL_INVALID_OPERATION
, func
);
979 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
981 if (rb
->InternalFormat
== internalFormat
&&
982 rb
->Width
== (GLuint
) width
&&
983 rb
->Height
== (GLuint
) height
) {
984 /* no change in allocation needed */
988 /* These MUST get set by the AllocStorage func */
989 rb
->Format
= MESA_FORMAT_NONE
;
990 rb
->NumSamples
= samples
;
992 /* Now allocate the storage */
993 ASSERT(rb
->AllocStorage
);
994 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
995 /* No error - check/set fields now */
996 assert(rb
->Format
!= MESA_FORMAT_NONE
);
997 assert(rb
->Width
== (GLuint
) width
);
998 assert(rb
->Height
== (GLuint
) height
);
999 rb
->InternalFormat
= internalFormat
;
1000 rb
->_BaseFormat
= baseFormat
;
1001 assert(rb
->_BaseFormat
!= 0);
1004 /* Probably ran out of memory - clear the fields */
1007 rb
->Format
= MESA_FORMAT_NONE
;
1008 rb
->InternalFormat
= GL_NONE
;
1009 rb
->_BaseFormat
= GL_NONE
;
1014 test_framebuffer_completeness(ctx, fb);
1016 /* XXX if this renderbuffer is attached anywhere, invalidate attachment
1022 #if FEATURE_OES_EGL_image
1024 _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target
, GLeglImageOES image
)
1026 struct gl_renderbuffer
*rb
;
1027 GET_CURRENT_CONTEXT(ctx
);
1028 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1030 if (!ctx
->Extensions
.OES_EGL_image
) {
1031 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1032 "glEGLImageTargetRenderbufferStorageOES(unsupported)");
1036 if (target
!= GL_RENDERBUFFER
) {
1037 _mesa_error(ctx
, GL_INVALID_ENUM
,
1038 "EGLImageTargetRenderbufferStorageOES");
1042 rb
= ctx
->CurrentRenderbuffer
;
1044 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1045 "EGLImageTargetRenderbufferStorageOES");
1049 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1051 ctx
->Driver
.EGLImageTargetRenderbufferStorage(ctx
, rb
, image
);
1057 * Helper function for _mesa_GetRenderbufferParameterivEXT() and
1058 * _mesa_GetFramebufferAttachmentParameterivEXT()
1059 * We have to be careful to respect the base format. For example, if a
1060 * renderbuffer/texture was created with internalFormat=GL_RGB but the
1061 * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
1062 * we need to return zero.
1065 get_component_bits(GLenum pname
, GLenum baseFormat
, gl_format format
)
1068 case GL_RENDERBUFFER_RED_SIZE_EXT
:
1069 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
1070 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
1071 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
1072 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
1073 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
1074 if (baseFormat
== GL_RGB
|| baseFormat
== GL_RGBA
)
1075 return _mesa_get_format_bits(format
, pname
);
1078 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
1079 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
1080 if (baseFormat
== GL_RGBA
|| baseFormat
== GL_ALPHA
)
1081 return _mesa_get_format_bits(format
, pname
);
1084 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
1085 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
1086 if (baseFormat
== GL_DEPTH_COMPONENT
|| baseFormat
== GL_DEPTH_STENCIL
)
1087 return _mesa_get_format_bits(format
, pname
);
1090 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
1091 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
1092 if (baseFormat
== GL_STENCIL_INDEX
|| baseFormat
== GL_DEPTH_STENCIL
)
1093 return _mesa_get_format_bits(format
, pname
);
1104 _mesa_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
1105 GLsizei width
, GLsizei height
)
1107 /* GL_ARB_fbo says calling this function is equivalent to calling
1108 * glRenderbufferStorageMultisample() with samples=0. We pass in
1109 * a token value here just for error reporting purposes.
1111 renderbuffer_storage(target
, internalFormat
, width
, height
, NO_SAMPLES
);
1116 _mesa_RenderbufferStorageMultisample(GLenum target
, GLsizei samples
,
1117 GLenum internalFormat
,
1118 GLsizei width
, GLsizei height
)
1120 renderbuffer_storage(target
, internalFormat
, width
, height
, samples
);
1125 * OpenGL ES version of glRenderBufferStorage.
1128 _es_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
1129 GLsizei width
, GLsizei height
)
1131 switch (internalFormat
) {
1133 /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
1134 /* choose a closest format */
1135 internalFormat
= GL_RGB5
;
1141 renderbuffer_storage(target
, internalFormat
, width
, height
, 0);
1146 _mesa_GetRenderbufferParameterivEXT(GLenum target
, GLenum pname
, GLint
*params
)
1148 struct gl_renderbuffer
*rb
;
1149 GET_CURRENT_CONTEXT(ctx
);
1151 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1153 if (target
!= GL_RENDERBUFFER_EXT
) {
1154 _mesa_error(ctx
, GL_INVALID_ENUM
,
1155 "glGetRenderbufferParameterivEXT(target)");
1159 rb
= ctx
->CurrentRenderbuffer
;
1161 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1162 "glGetRenderbufferParameterivEXT");
1166 /* No need to flush here since we're just quering state which is
1167 * not effected by rendering.
1171 case GL_RENDERBUFFER_WIDTH_EXT
:
1172 *params
= rb
->Width
;
1174 case GL_RENDERBUFFER_HEIGHT_EXT
:
1175 *params
= rb
->Height
;
1177 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
1178 *params
= rb
->InternalFormat
;
1180 case GL_RENDERBUFFER_RED_SIZE_EXT
:
1181 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
1182 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
1183 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
1184 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
1185 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
1186 *params
= get_component_bits(pname
, rb
->_BaseFormat
, rb
->Format
);
1188 case GL_RENDERBUFFER_SAMPLES
:
1189 if (ctx
->Extensions
.ARB_framebuffer_object
) {
1190 *params
= rb
->NumSamples
;
1195 _mesa_error(ctx
, GL_INVALID_ENUM
,
1196 "glGetRenderbufferParameterivEXT(target)");
1202 GLboolean GLAPIENTRY
1203 _mesa_IsFramebufferEXT(GLuint framebuffer
)
1205 GET_CURRENT_CONTEXT(ctx
);
1206 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1208 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
1209 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
1217 * Check if any of the attachments of the given framebuffer are textures
1218 * (render to texture). Call ctx->Driver.RenderTexture() for such
1222 check_begin_texture_render(GLcontext
*ctx
, struct gl_framebuffer
*fb
)
1225 ASSERT(ctx
->Driver
.RenderTexture
);
1228 return; /* can't render to texture with winsys framebuffers */
1230 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1231 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
1232 struct gl_texture_object
*texObj
= att
->Texture
;
1234 && texObj
->Image
[att
->CubeMapFace
][att
->TextureLevel
]) {
1235 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
1242 * Examine all the framebuffer's attachments to see if any are textures.
1243 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
1244 * notify the device driver that the texture image may have changed.
1247 check_end_texture_render(GLcontext
*ctx
, struct gl_framebuffer
*fb
)
1250 return; /* can't render to texture with winsys framebuffers */
1252 if (ctx
->Driver
.FinishRenderTexture
) {
1254 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1255 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
1256 if (att
->Texture
&& att
->Renderbuffer
) {
1257 ctx
->Driver
.FinishRenderTexture(ctx
, att
);
1265 _mesa_BindFramebufferEXT(GLenum target
, GLuint framebuffer
)
1267 struct gl_framebuffer
*newDrawFb
, *newReadFb
;
1268 struct gl_framebuffer
*oldDrawFb
, *oldReadFb
;
1269 GLboolean bindReadBuf
, bindDrawBuf
;
1270 GET_CURRENT_CONTEXT(ctx
);
1273 if (ctx
->Extensions
.ARB_framebuffer_object
) {
1274 ASSERT(ctx
->Extensions
.EXT_framebuffer_object
);
1275 ASSERT(ctx
->Extensions
.EXT_framebuffer_blit
);
1279 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1281 if (!ctx
->Extensions
.EXT_framebuffer_object
) {
1282 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1283 "glBindFramebufferEXT(unsupported)");
1288 #if FEATURE_EXT_framebuffer_blit
1289 case GL_DRAW_FRAMEBUFFER_EXT
:
1290 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1291 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
1294 bindDrawBuf
= GL_TRUE
;
1295 bindReadBuf
= GL_FALSE
;
1297 case GL_READ_FRAMEBUFFER_EXT
:
1298 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1299 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
1302 bindDrawBuf
= GL_FALSE
;
1303 bindReadBuf
= GL_TRUE
;
1306 case GL_FRAMEBUFFER_EXT
:
1307 bindDrawBuf
= GL_TRUE
;
1308 bindReadBuf
= GL_TRUE
;
1311 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
1316 /* Binding a user-created framebuffer object */
1317 newDrawFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
1318 if (newDrawFb
== &DummyFramebuffer
) {
1319 /* ID was reserved, but no real framebuffer object made yet */
1322 else if (!newDrawFb
&& ctx
->Extensions
.ARB_framebuffer_object
) {
1323 /* All FBO IDs must be Gen'd */
1324 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindFramebuffer(buffer)");
1329 /* create new framebuffer object */
1330 newDrawFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
1332 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
1335 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newDrawFb
);
1337 newReadFb
= newDrawFb
;
1340 /* Binding the window system framebuffer (which was originally set
1341 * with MakeCurrent).
1343 newDrawFb
= ctx
->WinSysDrawBuffer
;
1344 newReadFb
= ctx
->WinSysReadBuffer
;
1348 ASSERT(newDrawFb
!= &DummyFramebuffer
);
1350 /* save pointers to current/old framebuffers */
1351 oldDrawFb
= ctx
->DrawBuffer
;
1352 oldReadFb
= ctx
->ReadBuffer
;
1354 /* check if really changing bindings */
1355 if (oldDrawFb
== newDrawFb
)
1356 bindDrawBuf
= GL_FALSE
;
1357 if (oldReadFb
== newReadFb
)
1358 bindReadBuf
= GL_FALSE
;
1361 * OK, now bind the new Draw/Read framebuffers, if they're changing.
1363 * We also check if we're beginning and/or ending render-to-texture.
1364 * When a framebuffer with texture attachments is unbound, call
1365 * ctx->Driver.FinishRenderTexture().
1366 * When a framebuffer with texture attachments is bound, call
1367 * ctx->Driver.RenderTexture().
1369 * Note that if the ReadBuffer has texture attachments we don't consider
1370 * that a render-to-texture case.
1373 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1375 /* check if old readbuffer was render-to-texture */
1376 check_end_texture_render(ctx
, oldReadFb
);
1378 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newReadFb
);
1382 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1384 /* check if old read/draw buffers were render-to-texture */
1386 check_end_texture_render(ctx
, oldReadFb
);
1388 if (oldDrawFb
!= oldReadFb
)
1389 check_end_texture_render(ctx
, oldDrawFb
);
1391 /* check if newly bound framebuffer has any texture attachments */
1392 check_begin_texture_render(ctx
, newDrawFb
);
1394 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newDrawFb
);
1397 if ((bindDrawBuf
|| bindReadBuf
) && ctx
->Driver
.BindFramebuffer
) {
1398 ctx
->Driver
.BindFramebuffer(ctx
, target
, newDrawFb
, newReadFb
);
1404 _mesa_DeleteFramebuffersEXT(GLsizei n
, const GLuint
*framebuffers
)
1407 GET_CURRENT_CONTEXT(ctx
);
1409 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1410 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1412 for (i
= 0; i
< n
; i
++) {
1413 if (framebuffers
[i
] > 0) {
1414 struct gl_framebuffer
*fb
;
1415 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
1417 ASSERT(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
1419 /* check if deleting currently bound framebuffer object */
1420 if (ctx
->Extensions
.EXT_framebuffer_blit
) {
1421 /* separate draw/read binding points */
1422 if (fb
== ctx
->DrawBuffer
) {
1424 ASSERT(fb
->RefCount
>= 2);
1425 _mesa_BindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT
, 0);
1427 if (fb
== ctx
->ReadBuffer
) {
1429 ASSERT(fb
->RefCount
>= 2);
1430 _mesa_BindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT
, 0);
1434 /* only one binding point for read/draw buffers */
1435 if (fb
== ctx
->DrawBuffer
|| fb
== ctx
->ReadBuffer
) {
1437 ASSERT(fb
->RefCount
>= 2);
1438 _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT
, 0);
1442 /* remove from hash table immediately, to free the ID */
1443 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
1445 if (fb
!= &DummyFramebuffer
) {
1446 /* But the object will not be freed until it's no longer
1447 * bound in any context.
1449 _mesa_reference_framebuffer(&fb
, NULL
);
1458 _mesa_GenFramebuffersEXT(GLsizei n
, GLuint
*framebuffers
)
1460 GET_CURRENT_CONTEXT(ctx
);
1464 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1467 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenFramebuffersEXT(n)");
1474 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
1476 for (i
= 0; i
< n
; i
++) {
1477 GLuint name
= first
+ i
;
1478 framebuffers
[i
] = name
;
1479 /* insert dummy placeholder into hash table */
1480 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1481 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, name
, &DummyFramebuffer
);
1482 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1489 _mesa_CheckFramebufferStatusEXT(GLenum target
)
1491 struct gl_framebuffer
*buffer
;
1492 GET_CURRENT_CONTEXT(ctx
);
1494 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
1497 #if FEATURE_EXT_framebuffer_blit
1498 case GL_DRAW_FRAMEBUFFER_EXT
:
1499 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1500 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
1503 buffer
= ctx
->DrawBuffer
;
1505 case GL_READ_FRAMEBUFFER_EXT
:
1506 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1507 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
1510 buffer
= ctx
->ReadBuffer
;
1513 case GL_FRAMEBUFFER_EXT
:
1514 buffer
= ctx
->DrawBuffer
;
1517 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
1518 return 0; /* formerly GL_FRAMEBUFFER_STATUS_ERROR_EXT */
1521 if (buffer
->Name
== 0) {
1522 /* The window system / default framebuffer is always complete */
1523 return GL_FRAMEBUFFER_COMPLETE_EXT
;
1526 /* No need to flush here */
1528 if (buffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE
) {
1529 _mesa_test_framebuffer_completeness(ctx
, buffer
);
1532 return buffer
->_Status
;
1538 * Common code called by glFramebufferTexture1D/2D/3DEXT().
1541 framebuffer_texture(GLcontext
*ctx
, const char *caller
, GLenum target
,
1542 GLenum attachment
, GLenum textarget
, GLuint texture
,
1543 GLint level
, GLint zoffset
)
1545 struct gl_renderbuffer_attachment
*att
;
1546 struct gl_texture_object
*texObj
= NULL
;
1547 struct gl_framebuffer
*fb
;
1548 GLboolean error
= GL_FALSE
;
1550 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1553 case GL_READ_FRAMEBUFFER_EXT
:
1554 error
= !ctx
->Extensions
.EXT_framebuffer_blit
;
1555 fb
= ctx
->ReadBuffer
;
1557 case GL_DRAW_FRAMEBUFFER_EXT
:
1558 error
= !ctx
->Extensions
.EXT_framebuffer_blit
;
1560 case GL_FRAMEBUFFER_EXT
:
1561 fb
= ctx
->DrawBuffer
;
1568 _mesa_error(ctx
, GL_INVALID_ENUM
,
1569 "glFramebufferTexture%sEXT(target=0x%x)", caller
, target
);
1575 /* check framebuffer binding */
1576 if (fb
->Name
== 0) {
1577 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1578 "glFramebufferTexture%sEXT", caller
);
1583 /* The textarget, level, and zoffset parameters are only validated if
1584 * texture is non-zero.
1587 GLboolean err
= GL_TRUE
;
1589 texObj
= _mesa_lookup_texture(ctx
, texture
);
1590 if (texObj
!= NULL
) {
1591 if (textarget
== 0) {
1592 /* XXX what's the purpose of this? */
1593 err
= (texObj
->Target
!= GL_TEXTURE_3D
) &&
1594 (texObj
->Target
!= GL_TEXTURE_1D_ARRAY_EXT
) &&
1595 (texObj
->Target
!= GL_TEXTURE_2D_ARRAY_EXT
);
1598 err
= (texObj
->Target
== GL_TEXTURE_CUBE_MAP
)
1599 ? !IS_CUBE_FACE(textarget
)
1600 : (texObj
->Target
!= textarget
);
1604 /* can't render to a non-existant texture */
1605 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1606 "glFramebufferTexture%sEXT(non existant texture)",
1612 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1613 "glFramebufferTexture%sEXT(texture target mismatch)",
1618 if (texObj
->Target
== GL_TEXTURE_3D
) {
1619 const GLint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
1620 if (zoffset
< 0 || zoffset
>= maxSize
) {
1621 _mesa_error(ctx
, GL_INVALID_VALUE
,
1622 "glFramebufferTexture%sEXT(zoffset)", caller
);
1626 else if ((texObj
->Target
== GL_TEXTURE_1D_ARRAY_EXT
) ||
1627 (texObj
->Target
== GL_TEXTURE_2D_ARRAY_EXT
)) {
1628 if (zoffset
< 0 || zoffset
>= ctx
->Const
.MaxArrayTextureLayers
) {
1629 _mesa_error(ctx
, GL_INVALID_VALUE
,
1630 "glFramebufferTexture%sEXT(layer)", caller
);
1636 (level
>= _mesa_max_texture_levels(ctx
, texObj
->Target
))) {
1637 _mesa_error(ctx
, GL_INVALID_VALUE
,
1638 "glFramebufferTexture%sEXT(level)", caller
);
1643 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
1645 _mesa_error(ctx
, GL_INVALID_ENUM
,
1646 "glFramebufferTexture%sEXT(attachment)", caller
);
1650 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1652 _glthread_LOCK_MUTEX(fb
->Mutex
);
1654 _mesa_set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
1656 /* Set the render-to-texture flag. We'll check this flag in
1657 * glTexImage() and friends to determine if we need to revalidate
1658 * any FBOs that might be rendering into this texture.
1659 * This flag never gets cleared since it's non-trivial to determine
1660 * when all FBOs might be done rendering to this texture. That's OK
1661 * though since it's uncommon to render to a texture then repeatedly
1662 * call glTexImage() to change images in the texture.
1664 texObj
->_RenderToTexture
= GL_TRUE
;
1667 _mesa_remove_attachment(ctx
, att
);
1670 invalidate_framebuffer(fb
);
1672 _glthread_UNLOCK_MUTEX(fb
->Mutex
);
1678 _mesa_FramebufferTexture1DEXT(GLenum target
, GLenum attachment
,
1679 GLenum textarget
, GLuint texture
, GLint level
)
1681 GET_CURRENT_CONTEXT(ctx
);
1683 if ((texture
!= 0) && (textarget
!= GL_TEXTURE_1D
)) {
1684 _mesa_error(ctx
, GL_INVALID_ENUM
,
1685 "glFramebufferTexture1DEXT(textarget)");
1689 framebuffer_texture(ctx
, "1D", target
, attachment
, textarget
, texture
,
1695 _mesa_FramebufferTexture2DEXT(GLenum target
, GLenum attachment
,
1696 GLenum textarget
, GLuint texture
, GLint level
)
1698 GET_CURRENT_CONTEXT(ctx
);
1700 if ((texture
!= 0) &&
1701 (textarget
!= GL_TEXTURE_2D
) &&
1702 (textarget
!= GL_TEXTURE_RECTANGLE_ARB
) &&
1703 (!IS_CUBE_FACE(textarget
))) {
1704 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1705 "glFramebufferTexture2DEXT(textarget=0x%x)", textarget
);
1709 framebuffer_texture(ctx
, "2D", target
, attachment
, textarget
, texture
,
1715 _mesa_FramebufferTexture3DEXT(GLenum target
, GLenum attachment
,
1716 GLenum textarget
, GLuint texture
,
1717 GLint level
, GLint zoffset
)
1719 GET_CURRENT_CONTEXT(ctx
);
1721 if ((texture
!= 0) && (textarget
!= GL_TEXTURE_3D
)) {
1722 _mesa_error(ctx
, GL_INVALID_ENUM
,
1723 "glFramebufferTexture3DEXT(textarget)");
1727 framebuffer_texture(ctx
, "3D", target
, attachment
, textarget
, texture
,
1733 _mesa_FramebufferTextureLayerEXT(GLenum target
, GLenum attachment
,
1734 GLuint texture
, GLint level
, GLint layer
)
1736 GET_CURRENT_CONTEXT(ctx
);
1738 framebuffer_texture(ctx
, "Layer", target
, attachment
, 0, texture
,
1744 _mesa_FramebufferRenderbufferEXT(GLenum target
, GLenum attachment
,
1745 GLenum renderbufferTarget
,
1746 GLuint renderbuffer
)
1748 struct gl_renderbuffer_attachment
*att
;
1749 struct gl_framebuffer
*fb
;
1750 struct gl_renderbuffer
*rb
;
1751 GET_CURRENT_CONTEXT(ctx
);
1753 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1756 #if FEATURE_EXT_framebuffer_blit
1757 case GL_DRAW_FRAMEBUFFER_EXT
:
1758 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1759 _mesa_error(ctx
, GL_INVALID_ENUM
,
1760 "glFramebufferRenderbufferEXT(target)");
1763 fb
= ctx
->DrawBuffer
;
1765 case GL_READ_FRAMEBUFFER_EXT
:
1766 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1767 _mesa_error(ctx
, GL_INVALID_ENUM
,
1768 "glFramebufferRenderbufferEXT(target)");
1771 fb
= ctx
->ReadBuffer
;
1774 case GL_FRAMEBUFFER_EXT
:
1775 fb
= ctx
->DrawBuffer
;
1778 _mesa_error(ctx
, GL_INVALID_ENUM
,
1779 "glFramebufferRenderbufferEXT(target)");
1783 if (renderbufferTarget
!= GL_RENDERBUFFER_EXT
) {
1784 _mesa_error(ctx
, GL_INVALID_ENUM
,
1785 "glFramebufferRenderbufferEXT(renderbufferTarget)");
1789 if (fb
->Name
== 0) {
1790 /* Can't attach new renderbuffers to a window system framebuffer */
1791 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glFramebufferRenderbufferEXT");
1795 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
1797 _mesa_error(ctx
, GL_INVALID_ENUM
,
1798 "glFramebufferRenderbufferEXT(invalid attachment %s)",
1799 _mesa_lookup_enum_by_nr(attachment
));
1804 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1806 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1807 "glFramebufferRenderbufferEXT(non-existant"
1808 " renderbuffer %u)", renderbuffer
);
1813 /* remove renderbuffer attachment */
1817 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
&&
1818 rb
&& rb
->Format
!= MESA_FORMAT_NONE
) {
1819 /* make sure the renderbuffer is a depth/stencil format */
1820 const GLenum baseFormat
= _mesa_get_format_base_format(rb
->Format
);
1821 if (baseFormat
!= GL_DEPTH_STENCIL
) {
1822 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1823 "glFramebufferRenderbufferEXT(renderbuffer"
1824 " is not DEPTH_STENCIL format)");
1830 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1832 assert(ctx
->Driver
.FramebufferRenderbuffer
);
1833 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
1835 /* Some subsequent GL commands may depend on the framebuffer's visual
1836 * after the binding is updated. Update visual info now.
1838 _mesa_update_framebuffer_visual(fb
);
1843 _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target
, GLenum attachment
,
1844 GLenum pname
, GLint
*params
)
1846 const struct gl_renderbuffer_attachment
*att
;
1847 struct gl_framebuffer
*buffer
;
1848 GET_CURRENT_CONTEXT(ctx
);
1850 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1853 #if FEATURE_EXT_framebuffer_blit
1854 case GL_DRAW_FRAMEBUFFER_EXT
:
1855 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1856 _mesa_error(ctx
, GL_INVALID_ENUM
,
1857 "glGetFramebufferAttachmentParameterivEXT(target)");
1860 buffer
= ctx
->DrawBuffer
;
1862 case GL_READ_FRAMEBUFFER_EXT
:
1863 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1864 _mesa_error(ctx
, GL_INVALID_ENUM
,
1865 "glGetFramebufferAttachmentParameterivEXT(target)");
1868 buffer
= ctx
->ReadBuffer
;
1871 case GL_FRAMEBUFFER_EXT
:
1872 buffer
= ctx
->DrawBuffer
;
1875 _mesa_error(ctx
, GL_INVALID_ENUM
,
1876 "glGetFramebufferAttachmentParameterivEXT(target)");
1880 if (buffer
->Name
== 0) {
1881 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1882 "glGetFramebufferAttachmentParameterivEXT");
1886 att
= _mesa_get_attachment(ctx
, buffer
, attachment
);
1888 _mesa_error(ctx
, GL_INVALID_ENUM
,
1889 "glGetFramebufferAttachmentParameterivEXT(attachment)");
1893 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
1894 /* the depth and stencil attachments must point to the same buffer */
1895 const struct gl_renderbuffer_attachment
*depthAtt
, *stencilAtt
;
1896 depthAtt
= _mesa_get_attachment(ctx
, buffer
, GL_DEPTH_ATTACHMENT
);
1897 stencilAtt
= _mesa_get_attachment(ctx
, buffer
, GL_STENCIL_ATTACHMENT
);
1898 if (depthAtt
->Renderbuffer
!= stencilAtt
->Renderbuffer
) {
1899 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1900 "glGetFramebufferAttachmentParameterivEXT(DEPTH/STENCIL"
1901 " attachments differ)");
1906 /* No need to flush here */
1909 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
1910 *params
= att
->Type
;
1912 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
1913 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
1914 *params
= att
->Renderbuffer
->Name
;
1916 else if (att
->Type
== GL_TEXTURE
) {
1917 *params
= att
->Texture
->Name
;
1920 _mesa_error(ctx
, GL_INVALID_ENUM
,
1921 "glGetFramebufferAttachmentParameterivEXT(pname)");
1924 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
1925 if (att
->Type
== GL_TEXTURE
) {
1926 *params
= att
->TextureLevel
;
1929 _mesa_error(ctx
, GL_INVALID_ENUM
,
1930 "glGetFramebufferAttachmentParameterivEXT(pname)");
1933 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
1934 if (att
->Type
== GL_TEXTURE
) {
1935 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
1936 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
1943 _mesa_error(ctx
, GL_INVALID_ENUM
,
1944 "glGetFramebufferAttachmentParameterivEXT(pname)");
1947 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
1948 if (att
->Type
== GL_TEXTURE
) {
1949 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_3D
) {
1950 *params
= att
->Zoffset
;
1957 _mesa_error(ctx
, GL_INVALID_ENUM
,
1958 "glGetFramebufferAttachmentParameterivEXT(pname)");
1961 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
:
1962 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
1963 _mesa_error(ctx
, GL_INVALID_ENUM
,
1964 "glGetFramebufferAttachmentParameterivEXT(pname)");
1967 *params
= _mesa_get_format_color_encoding(att
->Renderbuffer
->Format
);
1970 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
:
1971 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
1972 _mesa_error(ctx
, GL_INVALID_ENUM
,
1973 "glGetFramebufferAttachmentParameterivEXT(pname)");
1977 gl_format format
= att
->Renderbuffer
->Format
;
1978 if (format
== MESA_FORMAT_CI8
|| format
== MESA_FORMAT_S8
) {
1983 *params
= _mesa_get_format_datatype(format
);
1987 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
1988 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
1989 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
1990 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
1991 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
1992 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
1993 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
1994 _mesa_error(ctx
, GL_INVALID_ENUM
,
1995 "glGetFramebufferAttachmentParameterivEXT(pname)");
1997 else if (att
->Texture
) {
1998 const struct gl_texture_image
*texImage
=
1999 _mesa_select_tex_image(ctx
, att
->Texture
, att
->Texture
->Target
,
2002 *params
= get_component_bits(pname
, texImage
->_BaseFormat
,
2003 texImage
->TexFormat
);
2009 else if (att
->Renderbuffer
) {
2010 *params
= get_component_bits(pname
, att
->Renderbuffer
->_BaseFormat
,
2011 att
->Renderbuffer
->Format
);
2018 _mesa_error(ctx
, GL_INVALID_ENUM
,
2019 "glGetFramebufferAttachmentParameterivEXT(pname)");
2026 _mesa_GenerateMipmapEXT(GLenum target
)
2028 struct gl_texture_object
*texObj
;
2029 GET_CURRENT_CONTEXT(ctx
);
2031 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2032 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2038 case GL_TEXTURE_CUBE_MAP
:
2039 /* OK, legal value */
2042 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGenerateMipmapEXT(target)");
2046 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2048 if (texObj
->BaseLevel
>= texObj
->MaxLevel
) {
2053 _mesa_lock_texture(ctx
, texObj
);
2054 if (target
== GL_TEXTURE_CUBE_MAP
) {
2056 for (face
= 0; face
< 6; face
++)
2057 ctx
->Driver
.GenerateMipmap(ctx
,
2058 GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
+ face
,
2062 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2064 _mesa_unlock_texture(ctx
, texObj
);
2068 #if FEATURE_EXT_framebuffer_blit
2070 static const struct gl_renderbuffer_attachment
*
2071 find_attachment(const struct gl_framebuffer
*fb
, const struct gl_renderbuffer
*rb
)
2074 for (i
= 0; i
< Elements(fb
->Attachment
); i
++) {
2075 if (fb
->Attachment
[i
].Renderbuffer
== rb
)
2076 return &fb
->Attachment
[i
];
2084 * Blit rectangular region, optionally from one framebuffer to another.
2086 * Note, if the src buffer is multisampled and the dest is not, this is
2087 * when the samples must be resolved to a single color.
2090 _mesa_BlitFramebufferEXT(GLint srcX0
, GLint srcY0
, GLint srcX1
, GLint srcY1
,
2091 GLint dstX0
, GLint dstY0
, GLint dstX1
, GLint dstY1
,
2092 GLbitfield mask
, GLenum filter
)
2094 const GLbitfield legalMaskBits
= (GL_COLOR_BUFFER_BIT
|
2095 GL_DEPTH_BUFFER_BIT
|
2096 GL_STENCIL_BUFFER_BIT
);
2097 const struct gl_framebuffer
*readFb
, *drawFb
;
2098 const struct gl_renderbuffer
*colorReadRb
, *colorDrawRb
;
2099 GET_CURRENT_CONTEXT(ctx
);
2101 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2102 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2104 if (ctx
->NewState
) {
2105 _mesa_update_state(ctx
);
2108 readFb
= ctx
->ReadBuffer
;
2109 drawFb
= ctx
->DrawBuffer
;
2111 if (!readFb
|| !drawFb
) {
2112 /* This will normally never happen but someday we may want to
2113 * support MakeCurrent() with no drawables.
2118 /* check for complete framebuffers */
2119 if (drawFb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
||
2120 readFb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2121 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2122 "glBlitFramebufferEXT(incomplete draw/read buffers)");
2126 if (filter
!= GL_NEAREST
&& filter
!= GL_LINEAR
) {
2127 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBlitFramebufferEXT(filter)");
2131 if (mask
& ~legalMaskBits
) {
2132 _mesa_error( ctx
, GL_INVALID_VALUE
, "glBlitFramebufferEXT(mask)");
2136 /* depth/stencil must be blitted with nearest filtering */
2137 if ((mask
& (GL_DEPTH_BUFFER_BIT
| GL_STENCIL_BUFFER_BIT
))
2138 && filter
!= GL_NEAREST
) {
2139 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2140 "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter");
2144 /* get color read/draw renderbuffers */
2145 if (mask
& GL_COLOR_BUFFER_BIT
) {
2146 colorReadRb
= readFb
->_ColorReadBuffer
;
2147 colorDrawRb
= drawFb
->_ColorDrawBuffers
[0];
2150 colorReadRb
= colorDrawRb
= NULL
;
2153 if (mask
& GL_STENCIL_BUFFER_BIT
) {
2154 struct gl_renderbuffer
*readRb
= readFb
->_StencilBuffer
;
2155 struct gl_renderbuffer
*drawRb
= drawFb
->_StencilBuffer
;
2158 _mesa_get_format_bits(readRb
->Format
, GL_STENCIL_BITS
) !=
2159 _mesa_get_format_bits(drawRb
->Format
, GL_STENCIL_BITS
)) {
2160 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2161 "glBlitFramebufferEXT(stencil buffer size mismatch");
2166 if (mask
& GL_DEPTH_BUFFER_BIT
) {
2167 struct gl_renderbuffer
*readRb
= readFb
->_DepthBuffer
;
2168 struct gl_renderbuffer
*drawRb
= drawFb
->_DepthBuffer
;
2171 _mesa_get_format_bits(readRb
->Format
, GL_DEPTH_BITS
) !=
2172 _mesa_get_format_bits(drawRb
->Format
, GL_DEPTH_BITS
)) {
2173 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2174 "glBlitFramebufferEXT(depth buffer size mismatch");
2179 if (readFb
->Visual
.samples
> 0 &&
2180 drawFb
->Visual
.samples
> 0 &&
2181 readFb
->Visual
.samples
!= drawFb
->Visual
.samples
) {
2182 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2183 "glBlitFramebufferEXT(mismatched samples");
2187 /* extra checks for multisample copies... */
2188 if (readFb
->Visual
.samples
> 0 || drawFb
->Visual
.samples
> 0) {
2189 /* src and dest region sizes must be the same */
2190 if (srcX1
- srcX0
!= dstX1
- dstX0
||
2191 srcY1
- srcY0
!= dstY1
- dstY0
) {
2192 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2193 "glBlitFramebufferEXT(bad src/dst multisample region sizes");
2197 /* color formats must match */
2200 colorReadRb
->Format
!= colorDrawRb
->Format
) {
2201 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2202 "glBlitFramebufferEXT(bad src/dst multisample pixel formats");
2207 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
2208 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBlitFramebufferEXT");
2214 printf("glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d,"
2216 srcX0
, srcY0
, srcX1
, srcY1
,
2217 dstX0
, dstY0
, dstX1
, dstY1
,
2220 const struct gl_renderbuffer_attachment
*att
;
2222 att
= find_attachment(readFb
, colorReadRb
);
2223 printf(" Src FBO %u RB %u (%dx%d) ",
2224 readFb
->Name
, colorReadRb
->Name
,
2225 colorReadRb
->Width
, colorReadRb
->Height
);
2226 if (att
&& att
->Texture
) {
2227 printf("Tex %u tgt 0x%x level %u face %u",
2229 att
->Texture
->Target
,
2235 att
= find_attachment(drawFb
, colorDrawRb
);
2236 printf(" Dst FBO %u RB %u (%dx%d) ",
2237 drawFb
->Name
, colorDrawRb
->Name
,
2238 colorDrawRb
->Width
, colorDrawRb
->Height
);
2239 if (att
&& att
->Texture
) {
2240 printf("Tex %u tgt 0x%x level %u face %u",
2242 att
->Texture
->Target
,
2250 ASSERT(ctx
->Driver
.BlitFramebuffer
);
2251 ctx
->Driver
.BlitFramebuffer(ctx
,
2252 srcX0
, srcY0
, srcX1
, srcY1
,
2253 dstX0
, dstY0
, dstX1
, dstY1
,
2256 #endif /* FEATURE_EXT_framebuffer_blit */