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
38 #include "framebuffer.h"
42 #include "renderbuffer.h"
52 * None of the GL_EXT_framebuffer_object functions are compiled into
59 * When glGenRender/FramebuffersEXT() is called we insert pointers to
60 * these placeholder objects into the hash table.
61 * Later, when the object ID is first bound, we replace the placeholder
62 * with the real frame/renderbuffer.
64 static struct gl_framebuffer DummyFramebuffer
;
65 static struct gl_renderbuffer DummyRenderbuffer
;
68 #define IS_CUBE_FACE(TARGET) \
69 ((TARGET) >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && \
70 (TARGET) <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z)
74 delete_dummy_renderbuffer(struct gl_renderbuffer
*rb
)
80 delete_dummy_framebuffer(struct gl_framebuffer
*fb
)
87 _mesa_init_fbobjects(GLcontext
*ctx
)
89 DummyFramebuffer
.Delete
= delete_dummy_framebuffer
;
90 DummyRenderbuffer
.Delete
= delete_dummy_renderbuffer
;
95 * Helper routine for getting a gl_renderbuffer.
97 struct gl_renderbuffer
*
98 _mesa_lookup_renderbuffer(GLcontext
*ctx
, GLuint id
)
100 struct gl_renderbuffer
*rb
;
105 rb
= (struct gl_renderbuffer
*)
106 _mesa_HashLookup(ctx
->Shared
->RenderBuffers
, id
);
112 * Helper routine for getting a gl_framebuffer.
114 struct gl_framebuffer
*
115 _mesa_lookup_framebuffer(GLcontext
*ctx
, GLuint id
)
117 struct gl_framebuffer
*fb
;
122 fb
= (struct gl_framebuffer
*)
123 _mesa_HashLookup(ctx
->Shared
->FrameBuffers
, id
);
129 * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding
130 * gl_renderbuffer_attachment object.
132 struct gl_renderbuffer_attachment
*
133 _mesa_get_attachment(GLcontext
*ctx
, struct gl_framebuffer
*fb
,
138 switch (attachment
) {
139 case GL_COLOR_ATTACHMENT0_EXT
:
140 case GL_COLOR_ATTACHMENT1_EXT
:
141 case GL_COLOR_ATTACHMENT2_EXT
:
142 case GL_COLOR_ATTACHMENT3_EXT
:
143 case GL_COLOR_ATTACHMENT4_EXT
:
144 case GL_COLOR_ATTACHMENT5_EXT
:
145 case GL_COLOR_ATTACHMENT6_EXT
:
146 case GL_COLOR_ATTACHMENT7_EXT
:
147 case GL_COLOR_ATTACHMENT8_EXT
:
148 case GL_COLOR_ATTACHMENT9_EXT
:
149 case GL_COLOR_ATTACHMENT10_EXT
:
150 case GL_COLOR_ATTACHMENT11_EXT
:
151 case GL_COLOR_ATTACHMENT12_EXT
:
152 case GL_COLOR_ATTACHMENT13_EXT
:
153 case GL_COLOR_ATTACHMENT14_EXT
:
154 case GL_COLOR_ATTACHMENT15_EXT
:
155 i
= attachment
- GL_COLOR_ATTACHMENT0_EXT
;
156 if (i
>= ctx
->Const
.MaxColorAttachments
) {
159 return &fb
->Attachment
[BUFFER_COLOR0
+ i
];
160 case GL_DEPTH_ATTACHMENT_EXT
:
161 return &fb
->Attachment
[BUFFER_DEPTH
];
162 case GL_STENCIL_ATTACHMENT_EXT
:
163 return &fb
->Attachment
[BUFFER_STENCIL
];
171 * Remove any texture or renderbuffer attached to the given attachment
172 * point. Update reference counts, etc.
175 _mesa_remove_attachment(GLcontext
*ctx
, struct gl_renderbuffer_attachment
*att
)
177 if (att
->Type
== GL_TEXTURE
) {
178 ASSERT(att
->Texture
);
179 if (ctx
->Driver
.FinishRenderTexture
) {
180 /* tell driver we're done rendering to this texobj */
181 ctx
->Driver
.FinishRenderTexture(ctx
, att
);
183 _mesa_reference_texobj(&att
->Texture
, NULL
); /* unbind */
184 ASSERT(!att
->Texture
);
186 if (att
->Type
== GL_TEXTURE
|| att
->Type
== GL_RENDERBUFFER_EXT
) {
187 ASSERT(!att
->Texture
);
188 _mesa_reference_renderbuffer(&att
->Renderbuffer
, NULL
); /* unbind */
189 ASSERT(!att
->Renderbuffer
);
192 att
->Complete
= GL_TRUE
;
197 * Bind a texture object to an attachment point.
198 * The previous binding, if any, will be removed first.
201 _mesa_set_texture_attachment(GLcontext
*ctx
,
202 struct gl_framebuffer
*fb
,
203 struct gl_renderbuffer_attachment
*att
,
204 struct gl_texture_object
*texObj
,
205 GLenum texTarget
, GLuint level
, GLuint zoffset
)
207 if (att
->Texture
== texObj
) {
208 /* re-attaching same texture */
209 ASSERT(att
->Type
== GL_TEXTURE
);
213 _mesa_remove_attachment(ctx
, att
);
214 att
->Type
= GL_TEXTURE
;
215 assert(!att
->Texture
);
216 _mesa_reference_texobj(&att
->Texture
, texObj
);
219 /* always update these fields */
220 att
->TextureLevel
= level
;
221 if (IS_CUBE_FACE(texTarget
)) {
222 att
->CubeMapFace
= texTarget
- GL_TEXTURE_CUBE_MAP_POSITIVE_X
;
225 att
->CubeMapFace
= 0;
227 att
->Zoffset
= zoffset
;
228 att
->Complete
= GL_FALSE
;
230 if (att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
]) {
231 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
237 * Bind a renderbuffer to an attachment point.
238 * The previous binding, if any, will be removed first.
241 _mesa_set_renderbuffer_attachment(GLcontext
*ctx
,
242 struct gl_renderbuffer_attachment
*att
,
243 struct gl_renderbuffer
*rb
)
245 /* XXX check if re-doing same attachment, exit early */
246 _mesa_remove_attachment(ctx
, att
);
247 att
->Type
= GL_RENDERBUFFER_EXT
;
248 att
->Texture
= NULL
; /* just to be safe */
249 att
->Complete
= GL_FALSE
;
250 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
255 * Fallback for ctx->Driver.FramebufferRenderbuffer()
256 * Attach a renderbuffer object to a framebuffer object.
259 _mesa_framebuffer_renderbuffer(GLcontext
*ctx
, struct gl_framebuffer
*fb
,
260 GLenum attachment
, struct gl_renderbuffer
*rb
)
262 struct gl_renderbuffer_attachment
*att
;
264 _glthread_LOCK_MUTEX(fb
->Mutex
);
266 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
269 _mesa_set_renderbuffer_attachment(ctx
, att
, rb
);
272 _mesa_remove_attachment(ctx
, att
);
275 _glthread_UNLOCK_MUTEX(fb
->Mutex
);
280 * Test if an attachment point is complete and update its Complete field.
281 * \param format if GL_COLOR, this is a color attachment point,
282 * if GL_DEPTH, this is a depth component attachment point,
283 * if GL_STENCIL, this is a stencil component attachment point.
286 test_attachment_completeness(const GLcontext
*ctx
, GLenum format
,
287 struct gl_renderbuffer_attachment
*att
)
289 assert(format
== GL_COLOR
|| format
== GL_DEPTH
|| format
== GL_STENCIL
);
291 /* assume complete */
292 att
->Complete
= GL_TRUE
;
294 /* Look for reasons why the attachment might be incomplete */
295 if (att
->Type
== GL_TEXTURE
) {
296 const struct gl_texture_object
*texObj
= att
->Texture
;
297 struct gl_texture_image
*texImage
;
300 att
->Complete
= GL_FALSE
;
304 texImage
= texObj
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
306 att
->Complete
= GL_FALSE
;
309 if (texImage
->Width
< 1 || texImage
->Height
< 1) {
310 att
->Complete
= GL_FALSE
;
313 if (texObj
->Target
== GL_TEXTURE_3D
&& att
->Zoffset
>= texImage
->Depth
) {
314 att
->Complete
= GL_FALSE
;
318 if (format
== GL_COLOR
) {
319 if (texImage
->TexFormat
->BaseFormat
!= GL_RGB
&&
320 texImage
->TexFormat
->BaseFormat
!= GL_RGBA
) {
321 att
->Complete
= GL_FALSE
;
325 else if (format
== GL_DEPTH
) {
326 if (texImage
->TexFormat
->BaseFormat
== GL_DEPTH_COMPONENT
) {
329 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
330 texImage
->TexFormat
->BaseFormat
== GL_DEPTH_STENCIL_EXT
) {
334 att
->Complete
= GL_FALSE
;
339 /* no such thing as stencil textures */
340 att
->Complete
= GL_FALSE
;
344 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
345 ASSERT(att
->Renderbuffer
);
346 if (!att
->Renderbuffer
->InternalFormat
||
347 att
->Renderbuffer
->Width
< 1 ||
348 att
->Renderbuffer
->Height
< 1) {
349 att
->Complete
= GL_FALSE
;
352 if (format
== GL_COLOR
) {
353 if (att
->Renderbuffer
->_BaseFormat
!= GL_RGB
&&
354 att
->Renderbuffer
->_BaseFormat
!= GL_RGBA
) {
355 ASSERT(att
->Renderbuffer
->RedBits
);
356 ASSERT(att
->Renderbuffer
->GreenBits
);
357 ASSERT(att
->Renderbuffer
->BlueBits
);
358 att
->Complete
= GL_FALSE
;
362 else if (format
== GL_DEPTH
) {
363 ASSERT(att
->Renderbuffer
->DepthBits
);
364 if (att
->Renderbuffer
->_BaseFormat
== GL_DEPTH_COMPONENT
) {
367 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
368 att
->Renderbuffer
->_BaseFormat
== GL_DEPTH_STENCIL_EXT
) {
372 att
->Complete
= GL_FALSE
;
377 assert(format
== GL_STENCIL
);
378 ASSERT(att
->Renderbuffer
->StencilBits
);
379 if (att
->Renderbuffer
->_BaseFormat
== GL_STENCIL_INDEX
) {
382 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
383 att
->Renderbuffer
->_BaseFormat
== GL_DEPTH_STENCIL_EXT
) {
387 att
->Complete
= GL_FALSE
;
393 ASSERT(att
->Type
== GL_NONE
);
401 * Helpful for debugging
404 fbo_incomplete(const char *msg
, int index
)
409 _mesa_debug(NULL, "FBO Incomplete: %s [%d]\n", msg, index);
415 * Test if the given framebuffer object is complete and update its
416 * Status field with the results.
417 * Also update the framebuffer's Width and Height fields if the
418 * framebuffer is complete.
421 _mesa_test_framebuffer_completeness(GLcontext
*ctx
, struct gl_framebuffer
*fb
)
424 GLenum intFormat
= GL_NONE
; /* color buffers' internal format */
425 GLuint minWidth
= ~0, minHeight
= ~0, maxWidth
= 0, maxHeight
= 0;
429 assert(fb
->Name
!= 0);
435 /* Start at -2 to more easily loop over all attachment points.
440 for (i
= -2; i
< (GLint
) ctx
->Const
.MaxColorAttachments
; i
++) {
441 struct gl_renderbuffer_attachment
*att
;
444 /* check for attachment completeness
447 att
= &fb
->Attachment
[BUFFER_DEPTH
];
448 test_attachment_completeness(ctx
, GL_DEPTH
, att
);
449 if (!att
->Complete
) {
450 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
451 fbo_incomplete("depth attachment incomplete", -1);
456 att
= &fb
->Attachment
[BUFFER_STENCIL
];
457 test_attachment_completeness(ctx
, GL_STENCIL
, att
);
458 if (!att
->Complete
) {
459 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
460 fbo_incomplete("stencil attachment incomplete", -1);
465 att
= &fb
->Attachment
[BUFFER_COLOR0
+ i
];
466 test_attachment_completeness(ctx
, GL_COLOR
, att
);
467 if (!att
->Complete
) {
468 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
469 fbo_incomplete("color attachment incomplete", i
);
474 /* get width, height, format of the renderbuffer/texture
476 if (att
->Type
== GL_TEXTURE
) {
477 const struct gl_texture_image
*texImg
478 = att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
479 minWidth
= MIN2(minWidth
, texImg
->Width
);
480 maxWidth
= MAX2(maxWidth
, texImg
->Width
);
481 minHeight
= MIN2(minHeight
, texImg
->Height
);
482 maxHeight
= MAX2(maxHeight
, texImg
->Height
);
483 f
= texImg
->_BaseFormat
;
485 if (f
!= GL_RGB
&& f
!= GL_RGBA
&& f
!= GL_DEPTH_COMPONENT
486 && f
!= GL_DEPTH_STENCIL_EXT
) {
487 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
488 fbo_incomplete("texture attachment incomplete", -1);
492 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
493 minWidth
= MIN2(minWidth
, att
->Renderbuffer
->Width
);
494 maxWidth
= MAX2(minWidth
, att
->Renderbuffer
->Width
);
495 minHeight
= MIN2(minHeight
, att
->Renderbuffer
->Height
);
496 maxHeight
= MAX2(minHeight
, att
->Renderbuffer
->Height
);
497 f
= att
->Renderbuffer
->InternalFormat
;
501 assert(att
->Type
== GL_NONE
);
505 /* Error-check width, height, format
507 if (numImages
== 1) {
513 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
514 /* check that width, height, format are same */
515 if (minWidth
!= maxWidth
|| minHeight
!= maxHeight
) {
516 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
;
517 fbo_incomplete("width or height mismatch", -1);
520 /* check that all color buffer have same format */
521 if (intFormat
!= GL_NONE
&& f
!= intFormat
) {
522 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
523 fbo_incomplete("format mismatch", -1);
530 #ifndef FEATURE_OES_framebuffer_object
531 /* Check that all DrawBuffers are present */
532 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
533 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
534 const struct gl_renderbuffer_attachment
*att
535 = _mesa_get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
]);
537 if (att
->Type
== GL_NONE
) {
538 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
539 fbo_incomplete("missing drawbuffer", j
);
545 /* Check that the ReadBuffer is present */
546 if (fb
->ColorReadBuffer
!= GL_NONE
) {
547 const struct gl_renderbuffer_attachment
*att
548 = _mesa_get_attachment(ctx
, fb
, fb
->ColorReadBuffer
);
550 if (att
->Type
== GL_NONE
) {
551 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
552 fbo_incomplete("missing readbuffer", -1);
558 if (numImages
== 0) {
559 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
560 fbo_incomplete("no attachments", -1);
565 * If we get here, the framebuffer is complete!
566 * Note that if ARB_framebuffer_object is supported and the attached
567 * renderbuffers/textures are different sizes, the framebuffer width/height
568 * will be set to the smallest width/height.
570 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
571 fb
->Width
= minWidth
;
572 fb
->Height
= minHeight
;
577 _mesa_IsRenderbufferEXT(GLuint renderbuffer
)
579 GET_CURRENT_CONTEXT(ctx
);
580 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
582 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
583 if (rb
!= NULL
&& rb
!= &DummyRenderbuffer
)
591 _mesa_BindRenderbufferEXT(GLenum target
, GLuint renderbuffer
)
593 struct gl_renderbuffer
*newRb
;
594 GET_CURRENT_CONTEXT(ctx
);
596 ASSERT_OUTSIDE_BEGIN_END(ctx
);
598 if (target
!= GL_RENDERBUFFER_EXT
) {
599 _mesa_error(ctx
, GL_INVALID_ENUM
,
600 "glBindRenderbufferEXT(target)");
604 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
605 /* The above doesn't fully flush the drivers in the way that a
606 * glFlush does, but that is required here:
608 if (ctx
->Driver
.Flush
)
609 ctx
->Driver
.Flush(ctx
);
613 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
614 if (newRb
== &DummyRenderbuffer
) {
615 /* ID was reserved, but no real renderbuffer object made yet */
619 if (ctx
->Extensions
.ARB_framebuffer_object
) {
620 /* All RB IDs must be Gen'd */
621 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindRenderbuffer(buffer)");
624 /* create new renderbuffer object */
625 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
627 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindRenderbufferEXT");
630 ASSERT(newRb
->AllocStorage
);
631 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
632 newRb
->RefCount
= 1; /* referenced by hash table */
639 ASSERT(newRb
!= &DummyRenderbuffer
);
641 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
646 _mesa_DeleteRenderbuffersEXT(GLsizei n
, const GLuint
*renderbuffers
)
649 GET_CURRENT_CONTEXT(ctx
);
651 ASSERT_OUTSIDE_BEGIN_END(ctx
);
652 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
654 for (i
= 0; i
< n
; i
++) {
655 if (renderbuffers
[i
] > 0) {
656 struct gl_renderbuffer
*rb
;
657 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
659 /* check if deleting currently bound renderbuffer object */
660 if (rb
== ctx
->CurrentRenderbuffer
) {
662 ASSERT(rb
->RefCount
>= 2);
663 _mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT
, 0);
666 /* Remove from hash table immediately, to free the ID.
667 * But the object will not be freed until it's no longer
668 * referenced anywhere else.
670 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
672 if (rb
!= &DummyRenderbuffer
) {
673 /* no longer referenced by hash table */
674 _mesa_reference_renderbuffer(&rb
, NULL
);
683 _mesa_GenRenderbuffersEXT(GLsizei n
, GLuint
*renderbuffers
)
685 GET_CURRENT_CONTEXT(ctx
);
689 ASSERT_OUTSIDE_BEGIN_END(ctx
);
692 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenRenderbuffersEXT(n)");
699 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
701 for (i
= 0; i
< n
; i
++) {
702 GLuint name
= first
+ i
;
703 renderbuffers
[i
] = name
;
704 /* insert dummy placeholder into hash table */
705 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
706 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, name
, &DummyRenderbuffer
);
707 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
713 * Given an internal format token for a render buffer, return the
714 * corresponding base format.
715 * This is very similar to _mesa_base_tex_format() but the set of valid
716 * internal formats is somewhat different.
718 * \return one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX, GL_DEPTH_COMPONENT
719 * GL_DEPTH_STENCIL_EXT or zero if error.
722 _mesa_base_fbo_format(GLcontext
*ctx
, GLenum internalFormat
)
724 switch (internalFormat
) {
743 case GL_STENCIL_INDEX
:
744 case GL_STENCIL_INDEX1_EXT
:
745 case GL_STENCIL_INDEX4_EXT
:
746 case GL_STENCIL_INDEX8_EXT
:
747 case GL_STENCIL_INDEX16_EXT
:
748 return GL_STENCIL_INDEX
;
749 case GL_DEPTH_COMPONENT
:
750 case GL_DEPTH_COMPONENT16
:
751 case GL_DEPTH_COMPONENT24
:
752 case GL_DEPTH_COMPONENT32
:
753 return GL_DEPTH_COMPONENT
;
754 case GL_DEPTH_STENCIL_EXT
:
755 case GL_DEPTH24_STENCIL8_EXT
:
756 if (ctx
->Extensions
.EXT_packed_depth_stencil
)
757 return GL_DEPTH_STENCIL_EXT
;
760 /* XXX add floating point formats eventually */
768 _mesa_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
769 GLsizei width
, GLsizei height
)
771 struct gl_renderbuffer
*rb
;
773 GET_CURRENT_CONTEXT(ctx
);
775 ASSERT_OUTSIDE_BEGIN_END(ctx
);
777 if (target
!= GL_RENDERBUFFER_EXT
) {
778 _mesa_error(ctx
, GL_INVALID_ENUM
, "glRenderbufferStorageEXT(target)");
782 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
783 if (baseFormat
== 0) {
784 _mesa_error(ctx
, GL_INVALID_ENUM
,
785 "glRenderbufferStorageEXT(internalFormat)");
789 if (width
< 1 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
790 _mesa_error(ctx
, GL_INVALID_VALUE
, "glRenderbufferStorageEXT(width)");
794 if (height
< 1 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
795 _mesa_error(ctx
, GL_INVALID_VALUE
, "glRenderbufferStorageEXT(height)");
799 rb
= ctx
->CurrentRenderbuffer
;
802 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glRenderbufferStorageEXT");
806 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
808 if (rb
->InternalFormat
== internalFormat
&&
809 rb
->Width
== (GLuint
) width
&&
810 rb
->Height
== (GLuint
) height
) {
811 /* no change in allocation needed */
815 /* These MUST get set by the AllocStorage func */
816 rb
->_ActualFormat
= 0;
825 /* Now allocate the storage */
826 ASSERT(rb
->AllocStorage
);
827 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
828 /* No error - check/set fields now */
829 assert(rb
->_ActualFormat
);
830 assert(rb
->Width
== (GLuint
) width
);
831 assert(rb
->Height
== (GLuint
) height
);
832 assert(rb
->RedBits
|| rb
->GreenBits
|| rb
->BlueBits
|| rb
->AlphaBits
||
833 rb
->DepthBits
|| rb
->StencilBits
|| rb
->IndexBits
);
834 rb
->InternalFormat
= internalFormat
;
835 rb
->_BaseFormat
= baseFormat
;
838 /* Probably ran out of memory - clear the fields */
841 rb
->InternalFormat
= GL_NONE
;
842 rb
->_ActualFormat
= GL_NONE
;
843 rb
->_BaseFormat
= GL_NONE
;
854 test_framebuffer_completeness(ctx, fb);
856 /* XXX if this renderbuffer is attached anywhere, invalidate attachment
863 _mesa_GetRenderbufferParameterivEXT(GLenum target
, GLenum pname
, GLint
*params
)
865 GET_CURRENT_CONTEXT(ctx
);
867 ASSERT_OUTSIDE_BEGIN_END(ctx
);
869 if (target
!= GL_RENDERBUFFER_EXT
) {
870 _mesa_error(ctx
, GL_INVALID_ENUM
,
871 "glGetRenderbufferParameterivEXT(target)");
875 if (!ctx
->CurrentRenderbuffer
) {
876 _mesa_error(ctx
, GL_INVALID_OPERATION
,
877 "glGetRenderbufferParameterivEXT");
881 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
884 case GL_RENDERBUFFER_WIDTH_EXT
:
885 *params
= ctx
->CurrentRenderbuffer
->Width
;
887 case GL_RENDERBUFFER_HEIGHT_EXT
:
888 *params
= ctx
->CurrentRenderbuffer
->Height
;
890 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
891 *params
= ctx
->CurrentRenderbuffer
->InternalFormat
;
893 case GL_RENDERBUFFER_RED_SIZE_EXT
:
894 *params
= ctx
->CurrentRenderbuffer
->RedBits
;
896 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
897 *params
= ctx
->CurrentRenderbuffer
->GreenBits
;
899 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
900 *params
= ctx
->CurrentRenderbuffer
->BlueBits
;
902 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
903 *params
= ctx
->CurrentRenderbuffer
->AlphaBits
;
905 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
906 *params
= ctx
->CurrentRenderbuffer
->DepthBits
;
908 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
909 *params
= ctx
->CurrentRenderbuffer
->StencilBits
;
912 _mesa_error(ctx
, GL_INVALID_ENUM
,
913 "glGetRenderbufferParameterivEXT(target)");
920 _mesa_IsFramebufferEXT(GLuint framebuffer
)
922 GET_CURRENT_CONTEXT(ctx
);
923 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
925 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
926 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
934 check_begin_texture_render(GLcontext
*ctx
, struct gl_framebuffer
*fb
)
937 ASSERT(ctx
->Driver
.RenderTexture
);
938 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
939 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
940 struct gl_texture_object
*texObj
= att
->Texture
;
942 && att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
]) {
943 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
950 * Examine all the framebuffer's attachments to see if any are textures.
951 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
952 * notify the device driver that the texture image may have changed.
955 check_end_texture_render(GLcontext
*ctx
, struct gl_framebuffer
*fb
)
957 if (ctx
->Driver
.FinishRenderTexture
) {
959 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
960 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
961 if (att
->Texture
&& att
->Renderbuffer
) {
962 ctx
->Driver
.FinishRenderTexture(ctx
, att
);
970 _mesa_BindFramebufferEXT(GLenum target
, GLuint framebuffer
)
972 struct gl_framebuffer
*newFb
, *newFbread
;
973 GLboolean bindReadBuf
, bindDrawBuf
;
974 GET_CURRENT_CONTEXT(ctx
);
976 ASSERT_OUTSIDE_BEGIN_END(ctx
);
978 if (!ctx
->Extensions
.EXT_framebuffer_object
) {
979 _mesa_error(ctx
, GL_INVALID_OPERATION
,
980 "glBindFramebufferEXT(unsupported)");
985 #if FEATURE_EXT_framebuffer_blit
986 case GL_DRAW_FRAMEBUFFER_EXT
:
987 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
988 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
991 bindDrawBuf
= GL_TRUE
;
992 bindReadBuf
= GL_FALSE
;
994 case GL_READ_FRAMEBUFFER_EXT
:
995 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
996 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
999 bindDrawBuf
= GL_FALSE
;
1000 bindReadBuf
= GL_TRUE
;
1003 case GL_FRAMEBUFFER_EXT
:
1004 bindDrawBuf
= GL_TRUE
;
1005 bindReadBuf
= GL_TRUE
;
1008 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
1012 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1014 if (ctx
->Driver
.Flush
) {
1015 ctx
->Driver
.Flush(ctx
);
1019 /* Binding a user-created framebuffer object */
1020 newFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
1021 if (newFb
== &DummyFramebuffer
) {
1022 /* ID was reserved, but no real framebuffer object made yet */
1026 if (ctx
->Extensions
.ARB_framebuffer_object
) {
1027 /* All FBO IDs must be Gen'd */
1028 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindFramebuffer(buffer)");
1031 /* create new framebuffer object */
1032 newFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
1034 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
1037 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newFb
);
1042 /* Binding the window system framebuffer (which was originally set
1043 * with MakeCurrent).
1045 newFb
= ctx
->WinSysDrawBuffer
;
1046 newFbread
= ctx
->WinSysReadBuffer
;
1050 ASSERT(newFb
!= &DummyFramebuffer
);
1053 * XXX check if re-binding same buffer and skip some of this code.
1057 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newFbread
);
1061 /* check if old FB had any texture attachments */
1062 check_end_texture_render(ctx
, ctx
->DrawBuffer
);
1064 /* check if time to delete this framebuffer */
1065 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newFb
);
1067 if (newFb
->Name
!= 0) {
1068 /* check if newly bound framebuffer has any texture attachments */
1069 check_begin_texture_render(ctx
, newFb
);
1073 if (ctx
->Driver
.BindFramebuffer
) {
1074 ctx
->Driver
.BindFramebuffer(ctx
, target
, newFb
, newFbread
);
1080 _mesa_DeleteFramebuffersEXT(GLsizei n
, const GLuint
*framebuffers
)
1083 GET_CURRENT_CONTEXT(ctx
);
1085 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1086 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1087 /* The above doesn't fully flush the drivers in the way that a
1088 * glFlush does, but that is required here:
1090 if (ctx
->Driver
.Flush
)
1091 ctx
->Driver
.Flush(ctx
);
1093 for (i
= 0; i
< n
; i
++) {
1094 if (framebuffers
[i
] > 0) {
1095 struct gl_framebuffer
*fb
;
1096 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
1098 ASSERT(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
1100 /* check if deleting currently bound framebuffer object */
1101 if (fb
== ctx
->DrawBuffer
) {
1103 ASSERT(fb
->RefCount
>= 2);
1104 _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT
, 0);
1107 /* remove from hash table immediately, to free the ID */
1108 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
1110 if (fb
!= &DummyFramebuffer
) {
1111 /* But the object will not be freed until it's no longer
1112 * bound in any context.
1114 _mesa_unreference_framebuffer(&fb
);
1123 _mesa_GenFramebuffersEXT(GLsizei n
, GLuint
*framebuffers
)
1125 GET_CURRENT_CONTEXT(ctx
);
1129 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1132 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenFramebuffersEXT(n)");
1139 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
1141 for (i
= 0; i
< n
; i
++) {
1142 GLuint name
= first
+ i
;
1143 framebuffers
[i
] = name
;
1144 /* insert dummy placeholder into hash table */
1145 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1146 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, name
, &DummyFramebuffer
);
1147 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1154 _mesa_CheckFramebufferStatusEXT(GLenum target
)
1156 struct gl_framebuffer
*buffer
;
1157 GET_CURRENT_CONTEXT(ctx
);
1159 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
1162 #if FEATURE_EXT_framebuffer_blit
1163 case GL_DRAW_FRAMEBUFFER_EXT
:
1164 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1165 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
1168 buffer
= ctx
->DrawBuffer
;
1170 case GL_READ_FRAMEBUFFER_EXT
:
1171 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1172 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
1175 buffer
= ctx
->ReadBuffer
;
1178 case GL_FRAMEBUFFER_EXT
:
1179 buffer
= ctx
->DrawBuffer
;
1182 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
1183 return 0; /* formerly GL_FRAMEBUFFER_STATUS_ERROR_EXT */
1186 if (buffer
->Name
== 0) {
1187 /* The window system / default framebuffer is always complete */
1188 return GL_FRAMEBUFFER_COMPLETE_EXT
;
1191 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1193 _mesa_test_framebuffer_completeness(ctx
, buffer
);
1194 return buffer
->_Status
;
1200 * Common code called by glFramebufferTexture1D/2D/3DEXT().
1203 framebuffer_texture(GLcontext
*ctx
, const char *caller
, GLenum target
,
1204 GLenum attachment
, GLenum textarget
, GLuint texture
,
1205 GLint level
, GLint zoffset
)
1207 struct gl_renderbuffer_attachment
*att
;
1208 struct gl_texture_object
*texObj
= NULL
;
1209 struct gl_framebuffer
*fb
;
1211 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1213 if (target
!= GL_FRAMEBUFFER_EXT
) {
1214 _mesa_error(ctx
, GL_INVALID_ENUM
,
1215 "glFramebufferTexture%sEXT(target)", caller
);
1219 fb
= ctx
->DrawBuffer
;
1222 /* check framebuffer binding */
1223 if (fb
->Name
== 0) {
1224 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1225 "glFramebufferTexture%sEXT", caller
);
1230 /* The textarget, level, and zoffset parameters are only validated if
1231 * texture is non-zero.
1234 GLboolean err
= GL_TRUE
;
1236 texObj
= _mesa_lookup_texture(ctx
, texture
);
1237 if (texObj
!= NULL
) {
1238 if (textarget
== 0) {
1239 err
= (texObj
->Target
!= GL_TEXTURE_3D
) &&
1240 (texObj
->Target
!= GL_TEXTURE_1D_ARRAY_EXT
) &&
1241 (texObj
->Target
!= GL_TEXTURE_2D_ARRAY_EXT
);
1244 err
= (texObj
->Target
== GL_TEXTURE_CUBE_MAP
)
1245 ? !IS_CUBE_FACE(textarget
)
1246 : (texObj
->Target
!= textarget
);
1251 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1252 "glFramebufferTexture%sEXT(texture target mismatch)",
1257 if (texObj
->Target
== GL_TEXTURE_3D
) {
1258 const GLint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
1259 if (zoffset
< 0 || zoffset
>= maxSize
) {
1260 _mesa_error(ctx
, GL_INVALID_VALUE
,
1261 "glFramebufferTexture%sEXT(zoffset)", caller
);
1265 else if ((texObj
->Target
== GL_TEXTURE_1D_ARRAY_EXT
) ||
1266 (texObj
->Target
== GL_TEXTURE_2D_ARRAY_EXT
)) {
1267 if (zoffset
< 0 || zoffset
>= ctx
->Const
.MaxArrayTextureLayers
) {
1268 _mesa_error(ctx
, GL_INVALID_VALUE
,
1269 "glFramebufferTexture%sEXT(layer)", caller
);
1276 (level
>= _mesa_max_texture_levels(ctx
, texObj
->Target
))) {
1277 _mesa_error(ctx
, GL_INVALID_VALUE
,
1278 "glFramebufferTexture%sEXT(level)", caller
);
1283 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
1285 _mesa_error(ctx
, GL_INVALID_ENUM
,
1286 "glFramebufferTexture%sEXT(attachment)", caller
);
1290 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1291 /* The above doesn't fully flush the drivers in the way that a
1292 * glFlush does, but that is required here:
1294 if (ctx
->Driver
.Flush
)
1295 ctx
->Driver
.Flush(ctx
);
1297 _glthread_LOCK_MUTEX(fb
->Mutex
);
1299 _mesa_set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
1303 _mesa_remove_attachment(ctx
, att
);
1305 _glthread_UNLOCK_MUTEX(fb
->Mutex
);
1311 _mesa_FramebufferTexture1DEXT(GLenum target
, GLenum attachment
,
1312 GLenum textarget
, GLuint texture
, GLint level
)
1314 GET_CURRENT_CONTEXT(ctx
);
1316 if ((texture
!= 0) && (textarget
!= GL_TEXTURE_1D
)) {
1317 _mesa_error(ctx
, GL_INVALID_ENUM
,
1318 "glFramebufferTexture1DEXT(textarget)");
1322 framebuffer_texture(ctx
, "1D", target
, attachment
, textarget
, texture
,
1328 _mesa_FramebufferTexture2DEXT(GLenum target
, GLenum attachment
,
1329 GLenum textarget
, GLuint texture
, GLint level
)
1331 GET_CURRENT_CONTEXT(ctx
);
1333 if ((texture
!= 0) &&
1334 (textarget
!= GL_TEXTURE_2D
) &&
1335 (textarget
!= GL_TEXTURE_RECTANGLE_ARB
) &&
1336 (!IS_CUBE_FACE(textarget
))) {
1337 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1338 "glFramebufferTexture2DEXT(textarget)");
1342 framebuffer_texture(ctx
, "2D", target
, attachment
, textarget
, texture
,
1348 _mesa_FramebufferTexture3DEXT(GLenum target
, GLenum attachment
,
1349 GLenum textarget
, GLuint texture
,
1350 GLint level
, GLint zoffset
)
1352 GET_CURRENT_CONTEXT(ctx
);
1354 if ((texture
!= 0) && (textarget
!= GL_TEXTURE_3D
)) {
1355 _mesa_error(ctx
, GL_INVALID_ENUM
,
1356 "glFramebufferTexture3DEXT(textarget)");
1360 framebuffer_texture(ctx
, "3D", target
, attachment
, textarget
, texture
,
1366 _mesa_FramebufferTextureLayerEXT(GLenum target
, GLenum attachment
,
1367 GLuint texture
, GLint level
, GLint layer
)
1369 GET_CURRENT_CONTEXT(ctx
);
1371 framebuffer_texture(ctx
, "Layer", target
, attachment
, 0, texture
,
1377 _mesa_FramebufferRenderbufferEXT(GLenum target
, GLenum attachment
,
1378 GLenum renderbufferTarget
,
1379 GLuint renderbuffer
)
1381 struct gl_renderbuffer_attachment
*att
;
1382 struct gl_framebuffer
*fb
;
1383 struct gl_renderbuffer
*rb
;
1384 GET_CURRENT_CONTEXT(ctx
);
1386 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1389 #if FEATURE_EXT_framebuffer_blit
1390 case GL_DRAW_FRAMEBUFFER_EXT
:
1391 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1392 _mesa_error(ctx
, GL_INVALID_ENUM
,
1393 "glFramebufferRenderbufferEXT(target)");
1396 fb
= ctx
->DrawBuffer
;
1398 case GL_READ_FRAMEBUFFER_EXT
:
1399 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1400 _mesa_error(ctx
, GL_INVALID_ENUM
,
1401 "glFramebufferRenderbufferEXT(target)");
1404 fb
= ctx
->ReadBuffer
;
1407 case GL_FRAMEBUFFER_EXT
:
1408 fb
= ctx
->DrawBuffer
;
1411 _mesa_error(ctx
, GL_INVALID_ENUM
,
1412 "glFramebufferRenderbufferEXT(target)");
1416 if (renderbufferTarget
!= GL_RENDERBUFFER_EXT
) {
1417 _mesa_error(ctx
, GL_INVALID_ENUM
,
1418 "glFramebufferRenderbufferEXT(renderbufferTarget)");
1422 if (fb
->Name
== 0) {
1423 /* Can't attach new renderbuffers to a window system framebuffer */
1424 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glFramebufferRenderbufferEXT");
1428 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
1430 _mesa_error(ctx
, GL_INVALID_ENUM
,
1431 "glFramebufferRenderbufferEXT(attachment)");
1436 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1438 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1439 "glFramebufferRenderbufferEXT(renderbuffer)");
1444 /* remove renderbuffer attachment */
1448 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1449 /* The above doesn't fully flush the drivers in the way that a
1450 * glFlush does, but that is required here:
1452 if (ctx
->Driver
.Flush
)
1453 ctx
->Driver
.Flush(ctx
);
1455 assert(ctx
->Driver
.FramebufferRenderbuffer
);
1456 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
1458 /* Some subsequent GL commands may depend on the framebuffer's visual
1459 * after the binding is updated. Update visual info now.
1461 _mesa_update_framebuffer_visual(fb
);
1466 _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target
, GLenum attachment
,
1467 GLenum pname
, GLint
*params
)
1469 const struct gl_renderbuffer_attachment
*att
;
1470 struct gl_framebuffer
*buffer
;
1471 GET_CURRENT_CONTEXT(ctx
);
1473 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1476 #if FEATURE_EXT_framebuffer_blit
1477 case GL_DRAW_FRAMEBUFFER_EXT
:
1478 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1479 _mesa_error(ctx
, GL_INVALID_ENUM
,
1480 "glGetFramebufferAttachmentParameterivEXT(target)");
1483 buffer
= ctx
->DrawBuffer
;
1485 case GL_READ_FRAMEBUFFER_EXT
:
1486 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1487 _mesa_error(ctx
, GL_INVALID_ENUM
,
1488 "glGetFramebufferAttachmentParameterivEXT(target)");
1491 buffer
= ctx
->ReadBuffer
;
1494 case GL_FRAMEBUFFER_EXT
:
1495 buffer
= ctx
->DrawBuffer
;
1498 _mesa_error(ctx
, GL_INVALID_ENUM
,
1499 "glGetFramebufferAttachmentParameterivEXT(target)");
1503 if (buffer
->Name
== 0) {
1504 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1505 "glGetFramebufferAttachmentParameterivEXT");
1509 att
= _mesa_get_attachment(ctx
, buffer
, attachment
);
1511 _mesa_error(ctx
, GL_INVALID_ENUM
,
1512 "glGetFramebufferAttachmentParameterivEXT(attachment)");
1516 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1517 /* The above doesn't fully flush the drivers in the way that a
1518 * glFlush does, but that is required here:
1520 if (ctx
->Driver
.Flush
)
1521 ctx
->Driver
.Flush(ctx
);
1524 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
1525 *params
= att
->Type
;
1527 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
1528 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
1529 *params
= att
->Renderbuffer
->Name
;
1531 else if (att
->Type
== GL_TEXTURE
) {
1532 *params
= att
->Texture
->Name
;
1535 _mesa_error(ctx
, GL_INVALID_ENUM
,
1536 "glGetFramebufferAttachmentParameterivEXT(pname)");
1539 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
1540 if (att
->Type
== GL_TEXTURE
) {
1541 *params
= att
->TextureLevel
;
1544 _mesa_error(ctx
, GL_INVALID_ENUM
,
1545 "glGetFramebufferAttachmentParameterivEXT(pname)");
1548 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
1549 if (att
->Type
== GL_TEXTURE
) {
1550 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
1551 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
1558 _mesa_error(ctx
, GL_INVALID_ENUM
,
1559 "glGetFramebufferAttachmentParameterivEXT(pname)");
1562 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
1563 if (att
->Type
== GL_TEXTURE
) {
1564 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_3D
) {
1565 *params
= att
->Zoffset
;
1572 _mesa_error(ctx
, GL_INVALID_ENUM
,
1573 "glGetFramebufferAttachmentParameterivEXT(pname)");
1577 _mesa_error(ctx
, GL_INVALID_ENUM
,
1578 "glGetFramebufferAttachmentParameterivEXT(pname)");
1585 _mesa_GenerateMipmapEXT(GLenum target
)
1587 struct gl_texture_unit
*texUnit
;
1588 struct gl_texture_object
*texObj
;
1589 GET_CURRENT_CONTEXT(ctx
);
1591 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1592 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1598 case GL_TEXTURE_CUBE_MAP
:
1599 /* OK, legal value */
1602 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGenerateMipmapEXT(target)");
1606 texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1607 texObj
= _mesa_select_tex_object(ctx
, texUnit
, target
);
1609 _mesa_lock_texture(ctx
, texObj
);
1610 if (target
== GL_TEXTURE_CUBE_MAP
) {
1613 for (face
= 0; face
< 6; face
++)
1614 ctx
->Driver
.GenerateMipmap(ctx
,
1615 GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
+ face
,
1618 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
1620 _mesa_unlock_texture(ctx
, texObj
);
1624 #if FEATURE_EXT_framebuffer_blit
1626 _mesa_BlitFramebufferEXT(GLint srcX0
, GLint srcY0
, GLint srcX1
, GLint srcY1
,
1627 GLint dstX0
, GLint dstY0
, GLint dstX1
, GLint dstY1
,
1628 GLbitfield mask
, GLenum filter
)
1630 GET_CURRENT_CONTEXT(ctx
);
1632 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1633 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1635 if (ctx
->NewState
) {
1636 _mesa_update_state(ctx
);
1639 if (!ctx
->ReadBuffer
) {
1643 /* check for complete framebuffers */
1644 if (ctx
->DrawBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
||
1645 ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1646 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
1647 "glBlitFramebufferEXT(incomplete draw/read buffers)");
1651 if (filter
!= GL_NEAREST
&& filter
!= GL_LINEAR
) {
1652 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBlitFramebufferEXT(filter)");
1656 if (mask
& ~(GL_COLOR_BUFFER_BIT
|
1657 GL_DEPTH_BUFFER_BIT
|
1658 GL_STENCIL_BUFFER_BIT
)) {
1659 _mesa_error( ctx
, GL_INVALID_VALUE
, "glBlitFramebufferEXT(mask)");
1663 /* depth/stencil must be blitted with nearest filtering */
1664 if ((mask
& (GL_DEPTH_BUFFER_BIT
| GL_STENCIL_BUFFER_BIT
))
1665 && filter
!= GL_NEAREST
) {
1666 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1667 "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter");
1671 if (mask
& GL_STENCIL_BUFFER_BIT
) {
1672 struct gl_renderbuffer
*readRb
= ctx
->ReadBuffer
->_StencilBuffer
;
1673 struct gl_renderbuffer
*drawRb
= ctx
->DrawBuffer
->_StencilBuffer
;
1674 if (readRb
->StencilBits
!= drawRb
->StencilBits
) {
1675 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1676 "glBlitFramebufferEXT(stencil buffer size mismatch");
1681 if (mask
& GL_DEPTH_BUFFER_BIT
) {
1682 struct gl_renderbuffer
*readRb
= ctx
->ReadBuffer
->_DepthBuffer
;
1683 struct gl_renderbuffer
*drawRb
= ctx
->DrawBuffer
->_DepthBuffer
;
1684 if (readRb
->DepthBits
!= drawRb
->DepthBits
) {
1685 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1686 "glBlitFramebufferEXT(depth buffer size mismatch");
1691 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1692 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBlitFramebufferEXT");
1696 ASSERT(ctx
->Driver
.BlitFramebuffer
);
1697 ctx
->Driver
.BlitFramebuffer(ctx
,
1698 srcX0
, srcY0
, srcX1
, srcY1
,
1699 dstX0
, dstY0
, dstX1
, dstY1
,
1702 #endif /* FEATURE_EXT_framebuffer_blit */