2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
35 #include "framebuffer.h"
38 #include "renderbuffer.h"
48 * None of the GL_EXT_framebuffer_object functions are compiled into
55 * When glGenRender/FramebuffersEXT() is called we insert pointers to
56 * these placeholder objects into the hash table.
57 * Later, when the object ID is first bound, we replace the placeholder
58 * with the real frame/renderbuffer.
60 static struct gl_framebuffer DummyFramebuffer
;
61 static struct gl_renderbuffer DummyRenderbuffer
;
64 #define IS_CUBE_FACE(TARGET) \
65 ((TARGET) >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && \
66 (TARGET) <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z)
70 delete_dummy_renderbuffer(struct gl_renderbuffer
*rb
)
76 delete_dummy_framebuffer(struct gl_framebuffer
*fb
)
83 _mesa_init_fbobjects(GLcontext
*ctx
)
85 DummyFramebuffer
.Delete
= delete_dummy_framebuffer
;
86 DummyRenderbuffer
.Delete
= delete_dummy_renderbuffer
;
91 * Helper routine for getting a gl_renderbuffer.
93 struct gl_renderbuffer
*
94 _mesa_lookup_renderbuffer(GLcontext
*ctx
, GLuint id
)
96 struct gl_renderbuffer
*rb
;
101 rb
= (struct gl_renderbuffer
*)
102 _mesa_HashLookup(ctx
->Shared
->RenderBuffers
, id
);
108 * Helper routine for getting a gl_framebuffer.
110 struct gl_framebuffer
*
111 _mesa_lookup_framebuffer(GLcontext
*ctx
, GLuint id
)
113 struct gl_framebuffer
*fb
;
118 fb
= (struct gl_framebuffer
*)
119 _mesa_HashLookup(ctx
->Shared
->FrameBuffers
, id
);
125 * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding
126 * gl_renderbuffer_attachment object.
128 struct gl_renderbuffer_attachment
*
129 _mesa_get_attachment(GLcontext
*ctx
, struct gl_framebuffer
*fb
,
134 switch (attachment
) {
135 case GL_COLOR_ATTACHMENT0_EXT
:
136 case GL_COLOR_ATTACHMENT1_EXT
:
137 case GL_COLOR_ATTACHMENT2_EXT
:
138 case GL_COLOR_ATTACHMENT3_EXT
:
139 case GL_COLOR_ATTACHMENT4_EXT
:
140 case GL_COLOR_ATTACHMENT5_EXT
:
141 case GL_COLOR_ATTACHMENT6_EXT
:
142 case GL_COLOR_ATTACHMENT7_EXT
:
143 case GL_COLOR_ATTACHMENT8_EXT
:
144 case GL_COLOR_ATTACHMENT9_EXT
:
145 case GL_COLOR_ATTACHMENT10_EXT
:
146 case GL_COLOR_ATTACHMENT11_EXT
:
147 case GL_COLOR_ATTACHMENT12_EXT
:
148 case GL_COLOR_ATTACHMENT13_EXT
:
149 case GL_COLOR_ATTACHMENT14_EXT
:
150 case GL_COLOR_ATTACHMENT15_EXT
:
151 i
= attachment
- GL_COLOR_ATTACHMENT0_EXT
;
152 if (i
>= ctx
->Const
.MaxColorAttachments
) {
155 return &fb
->Attachment
[BUFFER_COLOR0
+ i
];
156 case GL_DEPTH_ATTACHMENT_EXT
:
157 return &fb
->Attachment
[BUFFER_DEPTH
];
158 case GL_STENCIL_ATTACHMENT_EXT
:
159 return &fb
->Attachment
[BUFFER_STENCIL
];
167 * Remove any texture or renderbuffer attached to the given attachment
168 * point. Update reference counts, etc.
171 _mesa_remove_attachment(GLcontext
*ctx
, struct gl_renderbuffer_attachment
*att
)
173 if (att
->Type
== GL_TEXTURE
) {
174 ASSERT(att
->Texture
);
175 if (ctx
->Driver
.FinishRenderTexture
) {
176 /* tell driver we're done rendering to this texobj */
177 ctx
->Driver
.FinishRenderTexture(ctx
, att
);
179 _mesa_reference_texobj(&att
->Texture
, NULL
); /* unbind */
180 ASSERT(!att
->Texture
);
182 if (att
->Type
== GL_TEXTURE
|| att
->Type
== GL_RENDERBUFFER_EXT
) {
183 ASSERT(!att
->Texture
);
184 _mesa_reference_renderbuffer(&att
->Renderbuffer
, NULL
); /* unbind */
185 ASSERT(!att
->Renderbuffer
);
188 att
->Complete
= GL_TRUE
;
193 * Bind a texture object to an attachment point.
194 * The previous binding, if any, will be removed first.
197 _mesa_set_texture_attachment(GLcontext
*ctx
,
198 struct gl_framebuffer
*fb
,
199 struct gl_renderbuffer_attachment
*att
,
200 struct gl_texture_object
*texObj
,
201 GLenum texTarget
, GLuint level
, GLuint zoffset
)
203 if (att
->Texture
== texObj
) {
204 /* re-attaching same texture */
205 ASSERT(att
->Type
== GL_TEXTURE
);
209 _mesa_remove_attachment(ctx
, att
);
210 att
->Type
= GL_TEXTURE
;
211 assert(!att
->Texture
);
212 _mesa_reference_texobj(&att
->Texture
, texObj
);
215 /* always update these fields */
216 att
->TextureLevel
= level
;
217 if (IS_CUBE_FACE(texTarget
)) {
218 att
->CubeMapFace
= texTarget
- GL_TEXTURE_CUBE_MAP_POSITIVE_X
;
221 att
->CubeMapFace
= 0;
223 att
->Zoffset
= zoffset
;
224 att
->Complete
= GL_FALSE
;
226 if (att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
]) {
227 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
233 * Bind a renderbuffer to an attachment point.
234 * The previous binding, if any, will be removed first.
237 _mesa_set_renderbuffer_attachment(GLcontext
*ctx
,
238 struct gl_renderbuffer_attachment
*att
,
239 struct gl_renderbuffer
*rb
)
241 /* XXX check if re-doing same attachment, exit early */
242 _mesa_remove_attachment(ctx
, att
);
243 att
->Type
= GL_RENDERBUFFER_EXT
;
244 att
->Texture
= NULL
; /* just to be safe */
245 att
->Complete
= GL_FALSE
;
246 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
251 * Fallback for ctx->Driver.FramebufferRenderbuffer()
252 * Attach a renderbuffer object to a framebuffer object.
255 _mesa_framebuffer_renderbuffer(GLcontext
*ctx
, struct gl_framebuffer
*fb
,
256 GLenum attachment
, struct gl_renderbuffer
*rb
)
258 struct gl_renderbuffer_attachment
*att
;
260 _glthread_LOCK_MUTEX(fb
->Mutex
);
262 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
265 _mesa_set_renderbuffer_attachment(ctx
, att
, rb
);
268 _mesa_remove_attachment(ctx
, att
);
271 _glthread_UNLOCK_MUTEX(fb
->Mutex
);
276 * Test if an attachment point is complete and update its Complete field.
277 * \param format if GL_COLOR, this is a color attachment point,
278 * if GL_DEPTH, this is a depth component attachment point,
279 * if GL_STENCIL, this is a stencil component attachment point.
282 test_attachment_completeness(const GLcontext
*ctx
, GLenum format
,
283 struct gl_renderbuffer_attachment
*att
)
285 assert(format
== GL_COLOR
|| format
== GL_DEPTH
|| format
== GL_STENCIL
);
287 /* assume complete */
288 att
->Complete
= GL_TRUE
;
290 /* Look for reasons why the attachment might be incomplete */
291 if (att
->Type
== GL_TEXTURE
) {
292 const struct gl_texture_object
*texObj
= att
->Texture
;
293 struct gl_texture_image
*texImage
;
296 att
->Complete
= GL_FALSE
;
300 texImage
= texObj
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
302 att
->Complete
= GL_FALSE
;
305 if (texImage
->Width
< 1 || texImage
->Height
< 1) {
306 att
->Complete
= GL_FALSE
;
309 if (texObj
->Target
== GL_TEXTURE_3D
&& att
->Zoffset
>= texImage
->Depth
) {
310 att
->Complete
= GL_FALSE
;
314 if (format
== GL_COLOR
) {
315 if (texImage
->TexFormat
->BaseFormat
!= GL_RGB
&&
316 texImage
->TexFormat
->BaseFormat
!= GL_RGBA
) {
317 att
->Complete
= GL_FALSE
;
321 else if (format
== GL_DEPTH
) {
322 if (texImage
->TexFormat
->BaseFormat
== GL_DEPTH_COMPONENT
) {
325 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
326 texImage
->TexFormat
->BaseFormat
== GL_DEPTH_STENCIL_EXT
) {
330 att
->Complete
= GL_FALSE
;
335 /* no such thing as stencil textures */
336 att
->Complete
= GL_FALSE
;
340 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
341 ASSERT(att
->Renderbuffer
);
342 if (!att
->Renderbuffer
->InternalFormat
||
343 att
->Renderbuffer
->Width
< 1 ||
344 att
->Renderbuffer
->Height
< 1) {
345 att
->Complete
= GL_FALSE
;
348 if (format
== GL_COLOR
) {
349 if (att
->Renderbuffer
->_BaseFormat
!= GL_RGB
&&
350 att
->Renderbuffer
->_BaseFormat
!= GL_RGBA
) {
351 ASSERT(att
->Renderbuffer
->RedBits
);
352 ASSERT(att
->Renderbuffer
->GreenBits
);
353 ASSERT(att
->Renderbuffer
->BlueBits
);
354 att
->Complete
= GL_FALSE
;
358 else if (format
== GL_DEPTH
) {
359 ASSERT(att
->Renderbuffer
->DepthBits
);
360 if (att
->Renderbuffer
->_BaseFormat
== GL_DEPTH_COMPONENT
) {
363 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
364 att
->Renderbuffer
->_BaseFormat
== GL_DEPTH_STENCIL_EXT
) {
368 att
->Complete
= GL_FALSE
;
373 assert(format
== GL_STENCIL
);
374 ASSERT(att
->Renderbuffer
->StencilBits
);
375 if (att
->Renderbuffer
->_BaseFormat
== GL_STENCIL_INDEX
) {
378 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
379 att
->Renderbuffer
->_BaseFormat
== GL_DEPTH_STENCIL_EXT
) {
383 att
->Complete
= GL_FALSE
;
389 ASSERT(att
->Type
== GL_NONE
);
397 * Helpful for debugging
400 fbo_incomplete(const char *msg
, int index
)
405 _mesa_debug(NULL, "FBO Incomplete: %s [%d]\n", msg, index);
411 * Test if the given framebuffer object is complete and update its
412 * Status field with the results.
413 * Also update the framebuffer's Width and Height fields if the
414 * framebuffer is complete.
417 _mesa_test_framebuffer_completeness(GLcontext
*ctx
, struct gl_framebuffer
*fb
)
419 GLuint numImages
, width
= 0, height
= 0;
420 GLenum intFormat
= GL_NONE
;
425 assert(fb
->Name
!= 0);
431 /* Start at -2 to more easily loop over all attachment points */
432 for (i
= -2; i
< (GLint
) ctx
->Const
.MaxColorAttachments
; i
++) {
433 struct gl_renderbuffer_attachment
*att
;
437 att
= &fb
->Attachment
[BUFFER_DEPTH
];
438 test_attachment_completeness(ctx
, GL_DEPTH
, att
);
439 if (!att
->Complete
) {
440 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
441 fbo_incomplete("depth attachment incomplete", -1);
446 att
= &fb
->Attachment
[BUFFER_STENCIL
];
447 test_attachment_completeness(ctx
, GL_STENCIL
, att
);
448 if (!att
->Complete
) {
449 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
450 fbo_incomplete("stencil attachment incomplete", -1);
455 att
= &fb
->Attachment
[BUFFER_COLOR0
+ i
];
456 test_attachment_completeness(ctx
, GL_COLOR
, att
);
457 if (!att
->Complete
) {
458 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
459 fbo_incomplete("color attachment incomplete", i
);
464 if (att
->Type
== GL_TEXTURE
) {
465 const struct gl_texture_image
*texImg
466 = att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
469 f
= texImg
->_BaseFormat
;
471 if (f
!= GL_RGB
&& f
!= GL_RGBA
&& f
!= GL_DEPTH_COMPONENT
472 && f
!= GL_DEPTH_STENCIL_EXT
) {
473 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
474 fbo_incomplete("texture attachment incomplete", -1);
478 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
479 w
= att
->Renderbuffer
->Width
;
480 h
= att
->Renderbuffer
->Height
;
481 f
= att
->Renderbuffer
->InternalFormat
;
485 assert(att
->Type
== GL_NONE
);
489 if (numImages
== 1) {
490 /* set required width, height and format */
497 /* check that width, height, format are same */
498 if (w
!= width
|| h
!= height
) {
499 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
;
500 fbo_incomplete("width or height mismatch", -1);
503 if (intFormat
!= GL_NONE
&& f
!= intFormat
) {
504 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
505 fbo_incomplete("format mismatch", -1);
511 /* Check that all DrawBuffers are present */
512 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
513 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
514 const struct gl_renderbuffer_attachment
*att
515 = _mesa_get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
]);
517 if (att
->Type
== GL_NONE
) {
518 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
519 fbo_incomplete("missing drawbuffer", j
);
525 /* Check that the ReadBuffer is present */
526 if (fb
->ColorReadBuffer
!= GL_NONE
) {
527 const struct gl_renderbuffer_attachment
*att
528 = _mesa_get_attachment(ctx
, fb
, fb
->ColorReadBuffer
);
530 if (att
->Type
== GL_NONE
) {
531 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
532 fbo_incomplete("missing readbuffer", -1);
537 if (numImages
== 0) {
538 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
539 fbo_incomplete("no attachments", -1);
544 * If we get here, the framebuffer is complete!
546 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
553 _mesa_IsRenderbufferEXT(GLuint renderbuffer
)
555 GET_CURRENT_CONTEXT(ctx
);
556 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
558 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
559 if (rb
!= NULL
&& rb
!= &DummyRenderbuffer
)
567 _mesa_BindRenderbufferEXT(GLenum target
, GLuint renderbuffer
)
569 struct gl_renderbuffer
*newRb
;
570 GET_CURRENT_CONTEXT(ctx
);
572 ASSERT_OUTSIDE_BEGIN_END(ctx
);
574 if (target
!= GL_RENDERBUFFER_EXT
) {
575 _mesa_error(ctx
, GL_INVALID_ENUM
,
576 "glBindRenderbufferEXT(target)");
580 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
581 /* The above doesn't fully flush the drivers in the way that a
582 * glFlush does, but that is required here:
584 if (ctx
->Driver
.Flush
)
585 ctx
->Driver
.Flush(ctx
);
589 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
590 if (newRb
== &DummyRenderbuffer
) {
591 /* ID was reserved, but no real renderbuffer object made yet */
595 /* create new renderbuffer object */
596 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
598 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindRenderbufferEXT");
601 ASSERT(newRb
->AllocStorage
);
602 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
603 newRb
->RefCount
= 1; /* referenced by hash table */
610 ASSERT(newRb
!= &DummyRenderbuffer
);
612 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
617 _mesa_DeleteRenderbuffersEXT(GLsizei n
, const GLuint
*renderbuffers
)
620 GET_CURRENT_CONTEXT(ctx
);
622 ASSERT_OUTSIDE_BEGIN_END(ctx
);
623 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
625 for (i
= 0; i
< n
; i
++) {
626 if (renderbuffers
[i
] > 0) {
627 struct gl_renderbuffer
*rb
;
628 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
630 /* check if deleting currently bound renderbuffer object */
631 if (rb
== ctx
->CurrentRenderbuffer
) {
633 ASSERT(rb
->RefCount
>= 2);
634 _mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT
, 0);
637 /* Remove from hash table immediately, to free the ID.
638 * But the object will not be freed until it's no longer
639 * referenced anywhere else.
641 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
643 if (rb
!= &DummyRenderbuffer
) {
644 /* no longer referenced by hash table */
645 _mesa_reference_renderbuffer(&rb
, NULL
);
654 _mesa_GenRenderbuffersEXT(GLsizei n
, GLuint
*renderbuffers
)
656 GET_CURRENT_CONTEXT(ctx
);
660 ASSERT_OUTSIDE_BEGIN_END(ctx
);
663 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenRenderbuffersEXT(n)");
670 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
672 for (i
= 0; i
< n
; i
++) {
673 GLuint name
= first
+ i
;
674 renderbuffers
[i
] = name
;
675 /* insert dummy placeholder into hash table */
676 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
677 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, name
, &DummyRenderbuffer
);
678 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
684 * Given an internal format token for a render buffer, return the
685 * corresponding base format.
686 * This is very similar to _mesa_base_tex_format() but the set of valid
687 * internal formats is somewhat different.
689 * \return one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX, GL_DEPTH_COMPONENT
690 * GL_DEPTH_STENCIL_EXT or zero if error.
693 _mesa_base_fbo_format(GLcontext
*ctx
, GLenum internalFormat
)
695 switch (internalFormat
) {
714 case GL_STENCIL_INDEX
:
715 case GL_STENCIL_INDEX1_EXT
:
716 case GL_STENCIL_INDEX4_EXT
:
717 case GL_STENCIL_INDEX8_EXT
:
718 case GL_STENCIL_INDEX16_EXT
:
719 return GL_STENCIL_INDEX
;
720 case GL_DEPTH_COMPONENT
:
721 case GL_DEPTH_COMPONENT16
:
722 case GL_DEPTH_COMPONENT24
:
723 case GL_DEPTH_COMPONENT32
:
724 return GL_DEPTH_COMPONENT
;
725 case GL_DEPTH_STENCIL_EXT
:
726 case GL_DEPTH24_STENCIL8_EXT
:
727 if (ctx
->Extensions
.EXT_packed_depth_stencil
)
728 return GL_DEPTH_STENCIL_EXT
;
731 /* XXX add floating point formats eventually */
739 _mesa_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
740 GLsizei width
, GLsizei height
)
742 struct gl_renderbuffer
*rb
;
744 GET_CURRENT_CONTEXT(ctx
);
746 ASSERT_OUTSIDE_BEGIN_END(ctx
);
748 if (target
!= GL_RENDERBUFFER_EXT
) {
749 _mesa_error(ctx
, GL_INVALID_ENUM
, "glRenderbufferStorageEXT(target)");
753 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
754 if (baseFormat
== 0) {
755 _mesa_error(ctx
, GL_INVALID_ENUM
,
756 "glRenderbufferStorageEXT(internalFormat)");
760 if (width
< 1 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
761 _mesa_error(ctx
, GL_INVALID_VALUE
, "glRenderbufferStorageEXT(width)");
765 if (height
< 1 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
766 _mesa_error(ctx
, GL_INVALID_VALUE
, "glRenderbufferStorageEXT(height)");
770 rb
= ctx
->CurrentRenderbuffer
;
773 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glRenderbufferStorageEXT");
777 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
779 if (rb
->InternalFormat
== internalFormat
&&
780 rb
->Width
== (GLuint
) width
&&
781 rb
->Height
== (GLuint
) height
) {
782 /* no change in allocation needed */
786 /* These MUST get set by the AllocStorage func */
787 rb
->_ActualFormat
= 0;
796 /* Now allocate the storage */
797 ASSERT(rb
->AllocStorage
);
798 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
799 /* No error - check/set fields now */
800 assert(rb
->_ActualFormat
);
801 assert(rb
->Width
== (GLuint
) width
);
802 assert(rb
->Height
== (GLuint
) height
);
803 assert(rb
->RedBits
|| rb
->GreenBits
|| rb
->BlueBits
|| rb
->AlphaBits
||
804 rb
->DepthBits
|| rb
->StencilBits
|| rb
->IndexBits
);
805 rb
->InternalFormat
= internalFormat
;
806 rb
->_BaseFormat
= baseFormat
;
809 /* Probably ran out of memory - clear the fields */
812 rb
->InternalFormat
= GL_NONE
;
813 rb
->_ActualFormat
= GL_NONE
;
814 rb
->_BaseFormat
= GL_NONE
;
825 test_framebuffer_completeness(ctx, fb);
827 /* XXX if this renderbuffer is attached anywhere, invalidate attachment
834 _mesa_GetRenderbufferParameterivEXT(GLenum target
, GLenum pname
, GLint
*params
)
836 GET_CURRENT_CONTEXT(ctx
);
838 ASSERT_OUTSIDE_BEGIN_END(ctx
);
840 if (target
!= GL_RENDERBUFFER_EXT
) {
841 _mesa_error(ctx
, GL_INVALID_ENUM
,
842 "glGetRenderbufferParameterivEXT(target)");
846 if (!ctx
->CurrentRenderbuffer
) {
847 _mesa_error(ctx
, GL_INVALID_OPERATION
,
848 "glGetRenderbufferParameterivEXT");
852 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
855 case GL_RENDERBUFFER_WIDTH_EXT
:
856 *params
= ctx
->CurrentRenderbuffer
->Width
;
858 case GL_RENDERBUFFER_HEIGHT_EXT
:
859 *params
= ctx
->CurrentRenderbuffer
->Height
;
861 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
862 *params
= ctx
->CurrentRenderbuffer
->InternalFormat
;
864 case GL_RENDERBUFFER_RED_SIZE_EXT
:
865 *params
= ctx
->CurrentRenderbuffer
->RedBits
;
867 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
868 *params
= ctx
->CurrentRenderbuffer
->GreenBits
;
870 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
871 *params
= ctx
->CurrentRenderbuffer
->BlueBits
;
873 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
874 *params
= ctx
->CurrentRenderbuffer
->AlphaBits
;
876 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
877 *params
= ctx
->CurrentRenderbuffer
->DepthBits
;
879 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
880 *params
= ctx
->CurrentRenderbuffer
->StencilBits
;
883 _mesa_error(ctx
, GL_INVALID_ENUM
,
884 "glGetRenderbufferParameterivEXT(target)");
891 _mesa_IsFramebufferEXT(GLuint framebuffer
)
893 GET_CURRENT_CONTEXT(ctx
);
894 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
896 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
897 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
905 check_begin_texture_render(GLcontext
*ctx
, struct gl_framebuffer
*fb
)
908 ASSERT(ctx
->Driver
.RenderTexture
);
909 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
910 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
911 struct gl_texture_object
*texObj
= att
->Texture
;
913 && att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
]) {
914 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
921 * Examine all the framebuffer's attachments to see if any are textures.
922 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
923 * notify the device driver that the texture image may have changed.
926 check_end_texture_render(GLcontext
*ctx
, struct gl_framebuffer
*fb
)
928 if (ctx
->Driver
.FinishRenderTexture
) {
930 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
931 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
932 if (att
->Texture
&& att
->Renderbuffer
) {
933 ctx
->Driver
.FinishRenderTexture(ctx
, att
);
941 _mesa_BindFramebufferEXT(GLenum target
, GLuint framebuffer
)
943 struct gl_framebuffer
*newFb
, *newFbread
;
944 GLboolean bindReadBuf
, bindDrawBuf
;
945 GET_CURRENT_CONTEXT(ctx
);
947 ASSERT_OUTSIDE_BEGIN_END(ctx
);
949 if (!ctx
->Extensions
.EXT_framebuffer_object
) {
950 _mesa_error(ctx
, GL_INVALID_OPERATION
,
951 "glBindFramebufferEXT(unsupported)");
956 #if FEATURE_EXT_framebuffer_blit
957 case GL_DRAW_FRAMEBUFFER_EXT
:
958 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
959 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
962 bindDrawBuf
= GL_TRUE
;
963 bindReadBuf
= GL_FALSE
;
965 case GL_READ_FRAMEBUFFER_EXT
:
966 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
967 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
970 bindDrawBuf
= GL_FALSE
;
971 bindReadBuf
= GL_TRUE
;
974 case GL_FRAMEBUFFER_EXT
:
975 bindDrawBuf
= GL_TRUE
;
976 bindReadBuf
= GL_TRUE
;
979 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
983 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
985 if (ctx
->Driver
.Flush
) {
986 ctx
->Driver
.Flush(ctx
);
990 /* Binding a user-created framebuffer object */
991 newFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
992 if (newFb
== &DummyFramebuffer
) {
993 /* ID was reserved, but no real framebuffer object made yet */
997 /* create new framebuffer object */
998 newFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
1000 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
1003 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newFb
);
1008 /* Binding the window system framebuffer (which was originally set
1009 * with MakeCurrent).
1011 newFb
= ctx
->WinSysDrawBuffer
;
1012 newFbread
= ctx
->WinSysReadBuffer
;
1016 ASSERT(newFb
!= &DummyFramebuffer
);
1019 * XXX check if re-binding same buffer and skip some of this code.
1023 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newFbread
);
1027 /* check if old FB had any texture attachments */
1028 check_end_texture_render(ctx
, ctx
->DrawBuffer
);
1030 /* check if time to delete this framebuffer */
1031 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newFb
);
1033 if (newFb
->Name
!= 0) {
1034 /* check if newly bound framebuffer has any texture attachments */
1035 check_begin_texture_render(ctx
, newFb
);
1039 if (ctx
->Driver
.BindFramebuffer
) {
1040 ctx
->Driver
.BindFramebuffer(ctx
, target
, newFb
, newFbread
);
1046 _mesa_DeleteFramebuffersEXT(GLsizei n
, const GLuint
*framebuffers
)
1049 GET_CURRENT_CONTEXT(ctx
);
1051 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1052 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1053 /* The above doesn't fully flush the drivers in the way that a
1054 * glFlush does, but that is required here:
1056 if (ctx
->Driver
.Flush
)
1057 ctx
->Driver
.Flush(ctx
);
1059 for (i
= 0; i
< n
; i
++) {
1060 if (framebuffers
[i
] > 0) {
1061 struct gl_framebuffer
*fb
;
1062 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
1064 ASSERT(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
1066 /* check if deleting currently bound framebuffer object */
1067 if (fb
== ctx
->DrawBuffer
) {
1069 ASSERT(fb
->RefCount
>= 2);
1070 _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT
, 0);
1073 /* remove from hash table immediately, to free the ID */
1074 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
1076 if (fb
!= &DummyFramebuffer
) {
1077 /* But the object will not be freed until it's no longer
1078 * bound in any context.
1080 _mesa_unreference_framebuffer(&fb
);
1089 _mesa_GenFramebuffersEXT(GLsizei n
, GLuint
*framebuffers
)
1091 GET_CURRENT_CONTEXT(ctx
);
1095 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1098 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenFramebuffersEXT(n)");
1105 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
1107 for (i
= 0; i
< n
; i
++) {
1108 GLuint name
= first
+ i
;
1109 framebuffers
[i
] = name
;
1110 /* insert dummy placeholder into hash table */
1111 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1112 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, name
, &DummyFramebuffer
);
1113 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1120 _mesa_CheckFramebufferStatusEXT(GLenum target
)
1122 struct gl_framebuffer
*buffer
;
1123 GET_CURRENT_CONTEXT(ctx
);
1125 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
1128 #if FEATURE_EXT_framebuffer_blit
1129 case GL_DRAW_FRAMEBUFFER_EXT
:
1130 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1131 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
1134 buffer
= ctx
->DrawBuffer
;
1136 case GL_READ_FRAMEBUFFER_EXT
:
1137 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1138 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
1141 buffer
= ctx
->ReadBuffer
;
1144 case GL_FRAMEBUFFER_EXT
:
1145 buffer
= ctx
->DrawBuffer
;
1148 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
1149 return 0; /* formerly GL_FRAMEBUFFER_STATUS_ERROR_EXT */
1152 if (buffer
->Name
== 0) {
1153 /* The window system / default framebuffer is always complete */
1154 return GL_FRAMEBUFFER_COMPLETE_EXT
;
1157 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1159 _mesa_test_framebuffer_completeness(ctx
, buffer
);
1160 return buffer
->_Status
;
1166 * Common code called by glFramebufferTexture1D/2D/3DEXT().
1169 framebuffer_texture(GLcontext
*ctx
, const char *caller
, GLenum target
,
1170 GLenum attachment
, GLenum textarget
, GLuint texture
,
1171 GLint level
, GLint zoffset
)
1173 struct gl_renderbuffer_attachment
*att
;
1174 struct gl_texture_object
*texObj
= NULL
;
1175 struct gl_framebuffer
*fb
;
1177 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1179 if (target
!= GL_FRAMEBUFFER_EXT
) {
1180 _mesa_error(ctx
, GL_INVALID_ENUM
,
1181 "glFramebufferTexture%sEXT(target)", caller
);
1185 fb
= ctx
->DrawBuffer
;
1188 /* check framebuffer binding */
1189 if (fb
->Name
== 0) {
1190 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1191 "glFramebufferTexture%sEXT", caller
);
1196 /* The textarget, level, and zoffset parameters are only validated if
1197 * texture is non-zero.
1200 GLboolean err
= GL_TRUE
;
1202 texObj
= _mesa_lookup_texture(ctx
, texture
);
1203 if (texObj
!= NULL
) {
1204 if (textarget
== 0) {
1205 err
= (texObj
->Target
!= GL_TEXTURE_3D
) &&
1206 (texObj
->Target
!= GL_TEXTURE_1D_ARRAY_EXT
) &&
1207 (texObj
->Target
!= GL_TEXTURE_2D_ARRAY_EXT
);
1210 err
= (texObj
->Target
== GL_TEXTURE_CUBE_MAP
)
1211 ? !IS_CUBE_FACE(textarget
)
1212 : (texObj
->Target
!= textarget
);
1217 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1218 "glFramebufferTexture%sEXT(texture target mismatch)",
1223 if (texObj
->Target
== GL_TEXTURE_3D
) {
1224 const GLint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
1225 if (zoffset
< 0 || zoffset
>= maxSize
) {
1226 _mesa_error(ctx
, GL_INVALID_VALUE
,
1227 "glFramebufferTexture%sEXT(zoffset)", caller
);
1231 else if ((texObj
->Target
== GL_TEXTURE_1D_ARRAY_EXT
) ||
1232 (texObj
->Target
== GL_TEXTURE_2D_ARRAY_EXT
)) {
1233 if (zoffset
< 0 || zoffset
>= ctx
->Const
.MaxArrayTextureLayers
) {
1234 _mesa_error(ctx
, GL_INVALID_VALUE
,
1235 "glFramebufferTexture%sEXT(layer)", caller
);
1242 (level
>= _mesa_max_texture_levels(ctx
, texObj
->Target
))) {
1243 _mesa_error(ctx
, GL_INVALID_VALUE
,
1244 "glFramebufferTexture%sEXT(level)", caller
);
1249 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
1251 _mesa_error(ctx
, GL_INVALID_ENUM
,
1252 "glFramebufferTexture%sEXT(attachment)", caller
);
1256 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1257 /* The above doesn't fully flush the drivers in the way that a
1258 * glFlush does, but that is required here:
1260 if (ctx
->Driver
.Flush
)
1261 ctx
->Driver
.Flush(ctx
);
1263 _glthread_LOCK_MUTEX(fb
->Mutex
);
1265 _mesa_set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
1269 _mesa_remove_attachment(ctx
, att
);
1271 _glthread_UNLOCK_MUTEX(fb
->Mutex
);
1277 _mesa_FramebufferTexture1DEXT(GLenum target
, GLenum attachment
,
1278 GLenum textarget
, GLuint texture
, GLint level
)
1280 GET_CURRENT_CONTEXT(ctx
);
1282 if ((texture
!= 0) && (textarget
!= GL_TEXTURE_1D
)) {
1283 _mesa_error(ctx
, GL_INVALID_ENUM
,
1284 "glFramebufferTexture1DEXT(textarget)");
1288 framebuffer_texture(ctx
, "1D", target
, attachment
, textarget
, texture
,
1294 _mesa_FramebufferTexture2DEXT(GLenum target
, GLenum attachment
,
1295 GLenum textarget
, GLuint texture
, GLint level
)
1297 GET_CURRENT_CONTEXT(ctx
);
1299 if ((texture
!= 0) &&
1300 (textarget
!= GL_TEXTURE_2D
) &&
1301 (textarget
!= GL_TEXTURE_RECTANGLE_ARB
) &&
1302 (!IS_CUBE_FACE(textarget
))) {
1303 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1304 "glFramebufferTexture2DEXT(textarget)");
1308 framebuffer_texture(ctx
, "2D", target
, attachment
, textarget
, texture
,
1314 _mesa_FramebufferTexture3DEXT(GLenum target
, GLenum attachment
,
1315 GLenum textarget
, GLuint texture
,
1316 GLint level
, GLint zoffset
)
1318 GET_CURRENT_CONTEXT(ctx
);
1320 if ((texture
!= 0) && (textarget
!= GL_TEXTURE_3D
)) {
1321 _mesa_error(ctx
, GL_INVALID_ENUM
,
1322 "glFramebufferTexture3DEXT(textarget)");
1326 framebuffer_texture(ctx
, "3D", target
, attachment
, textarget
, texture
,
1332 _mesa_FramebufferTextureLayerEXT(GLenum target
, GLenum attachment
,
1333 GLuint texture
, GLint level
, GLint layer
)
1335 GET_CURRENT_CONTEXT(ctx
);
1337 framebuffer_texture(ctx
, "Layer", target
, attachment
, 0, texture
,
1343 _mesa_FramebufferRenderbufferEXT(GLenum target
, GLenum attachment
,
1344 GLenum renderbufferTarget
,
1345 GLuint renderbuffer
)
1347 struct gl_renderbuffer_attachment
*att
;
1348 struct gl_framebuffer
*fb
;
1349 struct gl_renderbuffer
*rb
;
1350 GET_CURRENT_CONTEXT(ctx
);
1352 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1355 #if FEATURE_EXT_framebuffer_blit
1356 case GL_DRAW_FRAMEBUFFER_EXT
:
1357 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1358 _mesa_error(ctx
, GL_INVALID_ENUM
,
1359 "glFramebufferRenderbufferEXT(target)");
1362 fb
= ctx
->DrawBuffer
;
1364 case GL_READ_FRAMEBUFFER_EXT
:
1365 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1366 _mesa_error(ctx
, GL_INVALID_ENUM
,
1367 "glFramebufferRenderbufferEXT(target)");
1370 fb
= ctx
->ReadBuffer
;
1373 case GL_FRAMEBUFFER_EXT
:
1374 fb
= ctx
->DrawBuffer
;
1377 _mesa_error(ctx
, GL_INVALID_ENUM
,
1378 "glFramebufferRenderbufferEXT(target)");
1382 if (renderbufferTarget
!= GL_RENDERBUFFER_EXT
) {
1383 _mesa_error(ctx
, GL_INVALID_ENUM
,
1384 "glFramebufferRenderbufferEXT(renderbufferTarget)");
1388 if (fb
->Name
== 0) {
1389 /* Can't attach new renderbuffers to a window system framebuffer */
1390 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glFramebufferRenderbufferEXT");
1394 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
1396 _mesa_error(ctx
, GL_INVALID_ENUM
,
1397 "glFramebufferRenderbufferEXT(attachment)");
1402 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1404 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1405 "glFramebufferRenderbufferEXT(renderbuffer)");
1410 /* remove renderbuffer attachment */
1414 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1415 /* The above doesn't fully flush the drivers in the way that a
1416 * glFlush does, but that is required here:
1418 if (ctx
->Driver
.Flush
)
1419 ctx
->Driver
.Flush(ctx
);
1421 assert(ctx
->Driver
.FramebufferRenderbuffer
);
1422 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
1424 /* Some subsequent GL commands may depend on the framebuffer's visual
1425 * after the binding is updated. Update visual info now.
1427 _mesa_update_framebuffer_visual(fb
);
1432 _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target
, GLenum attachment
,
1433 GLenum pname
, GLint
*params
)
1435 const struct gl_renderbuffer_attachment
*att
;
1436 struct gl_framebuffer
*buffer
;
1437 GET_CURRENT_CONTEXT(ctx
);
1439 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1442 #if FEATURE_EXT_framebuffer_blit
1443 case GL_DRAW_FRAMEBUFFER_EXT
:
1444 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1445 _mesa_error(ctx
, GL_INVALID_ENUM
,
1446 "glGetFramebufferAttachmentParameterivEXT(target)");
1449 buffer
= ctx
->DrawBuffer
;
1451 case GL_READ_FRAMEBUFFER_EXT
:
1452 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1453 _mesa_error(ctx
, GL_INVALID_ENUM
,
1454 "glGetFramebufferAttachmentParameterivEXT(target)");
1457 buffer
= ctx
->ReadBuffer
;
1460 case GL_FRAMEBUFFER_EXT
:
1461 buffer
= ctx
->DrawBuffer
;
1464 _mesa_error(ctx
, GL_INVALID_ENUM
,
1465 "glGetFramebufferAttachmentParameterivEXT(target)");
1469 if (buffer
->Name
== 0) {
1470 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1471 "glGetFramebufferAttachmentParameterivEXT");
1475 att
= _mesa_get_attachment(ctx
, buffer
, attachment
);
1477 _mesa_error(ctx
, GL_INVALID_ENUM
,
1478 "glGetFramebufferAttachmentParameterivEXT(attachment)");
1482 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1483 /* The above doesn't fully flush the drivers in the way that a
1484 * glFlush does, but that is required here:
1486 if (ctx
->Driver
.Flush
)
1487 ctx
->Driver
.Flush(ctx
);
1490 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
1491 *params
= att
->Type
;
1493 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
1494 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
1495 *params
= att
->Renderbuffer
->Name
;
1497 else if (att
->Type
== GL_TEXTURE
) {
1498 *params
= att
->Texture
->Name
;
1501 _mesa_error(ctx
, GL_INVALID_ENUM
,
1502 "glGetFramebufferAttachmentParameterivEXT(pname)");
1505 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
1506 if (att
->Type
== GL_TEXTURE
) {
1507 *params
= att
->TextureLevel
;
1510 _mesa_error(ctx
, GL_INVALID_ENUM
,
1511 "glGetFramebufferAttachmentParameterivEXT(pname)");
1514 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
1515 if (att
->Type
== GL_TEXTURE
) {
1516 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
1517 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
1524 _mesa_error(ctx
, GL_INVALID_ENUM
,
1525 "glGetFramebufferAttachmentParameterivEXT(pname)");
1528 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
1529 if (att
->Type
== GL_TEXTURE
) {
1530 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_3D
) {
1531 *params
= att
->Zoffset
;
1538 _mesa_error(ctx
, GL_INVALID_ENUM
,
1539 "glGetFramebufferAttachmentParameterivEXT(pname)");
1543 _mesa_error(ctx
, GL_INVALID_ENUM
,
1544 "glGetFramebufferAttachmentParameterivEXT(pname)");
1551 _mesa_GenerateMipmapEXT(GLenum target
)
1553 struct gl_texture_unit
*texUnit
;
1554 struct gl_texture_object
*texObj
;
1555 GET_CURRENT_CONTEXT(ctx
);
1557 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1558 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1564 case GL_TEXTURE_CUBE_MAP
:
1565 /* OK, legal value */
1568 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGenerateMipmapEXT(target)");
1572 texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1573 texObj
= _mesa_select_tex_object(ctx
, texUnit
, target
);
1575 /* XXX this might not handle cube maps correctly */
1576 _mesa_lock_texture(ctx
, texObj
);
1577 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
1578 _mesa_unlock_texture(ctx
, texObj
);
1582 #if FEATURE_EXT_framebuffer_blit
1584 _mesa_BlitFramebufferEXT(GLint srcX0
, GLint srcY0
, GLint srcX1
, GLint srcY1
,
1585 GLint dstX0
, GLint dstY0
, GLint dstX1
, GLint dstY1
,
1586 GLbitfield mask
, GLenum filter
)
1588 GET_CURRENT_CONTEXT(ctx
);
1590 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1591 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1593 if (ctx
->NewState
) {
1594 _mesa_update_state(ctx
);
1597 if (!ctx
->ReadBuffer
) {
1601 /* check for complete framebuffers */
1602 if (ctx
->DrawBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
||
1603 ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1604 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
1605 "glBlitFramebufferEXT(incomplete draw/read buffers)");
1609 if (filter
!= GL_NEAREST
&& filter
!= GL_LINEAR
) {
1610 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBlitFramebufferEXT(filter)");
1614 if (mask
& ~(GL_COLOR_BUFFER_BIT
|
1615 GL_DEPTH_BUFFER_BIT
|
1616 GL_STENCIL_BUFFER_BIT
)) {
1617 _mesa_error( ctx
, GL_INVALID_VALUE
, "glBlitFramebufferEXT(mask)");
1621 /* depth/stencil must be blitted with nearest filtering */
1622 if ((mask
& (GL_DEPTH_BUFFER_BIT
| GL_STENCIL_BUFFER_BIT
))
1623 && filter
!= GL_NEAREST
) {
1624 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1625 "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter");
1629 if (mask
& GL_STENCIL_BUFFER_BIT
) {
1630 struct gl_renderbuffer
*readRb
= ctx
->ReadBuffer
->_StencilBuffer
;
1631 struct gl_renderbuffer
*drawRb
= ctx
->DrawBuffer
->_StencilBuffer
;
1632 if (readRb
->StencilBits
!= drawRb
->StencilBits
) {
1633 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1634 "glBlitFramebufferEXT(stencil buffer size mismatch");
1639 if (mask
& GL_DEPTH_BUFFER_BIT
) {
1640 struct gl_renderbuffer
*readRb
= ctx
->ReadBuffer
->_DepthBuffer
;
1641 struct gl_renderbuffer
*drawRb
= ctx
->DrawBuffer
->_DepthBuffer
;
1642 if (readRb
->DepthBits
!= drawRb
->DepthBits
) {
1643 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1644 "glBlitFramebufferEXT(depth buffer size mismatch");
1649 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1650 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBlitFramebufferEXT");
1654 ASSERT(ctx
->Driver
.BlitFramebuffer
);
1655 ctx
->Driver
.BlitFramebuffer(ctx
,
1656 srcX0
, srcY0
, srcX1
, srcY1
,
1657 dstX0
, dstY0
, dstX1
, dstY1
,
1660 #endif /* FEATURE_EXT_framebuffer_blit */