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 that we're done rendering to this texture. */
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 #ifndef FEATURE_OES_framebuffer_object
512 /* Check that all DrawBuffers are present */
513 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
514 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
515 const struct gl_renderbuffer_attachment
*att
516 = _mesa_get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
]);
518 if (att
->Type
== GL_NONE
) {
519 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
520 fbo_incomplete("missing drawbuffer", j
);
526 /* Check that the ReadBuffer is present */
527 if (fb
->ColorReadBuffer
!= GL_NONE
) {
528 const struct gl_renderbuffer_attachment
*att
529 = _mesa_get_attachment(ctx
, fb
, fb
->ColorReadBuffer
);
531 if (att
->Type
== GL_NONE
) {
532 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
533 fbo_incomplete("missing readbuffer", -1);
539 if (numImages
== 0) {
540 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
541 fbo_incomplete("no attachments", -1);
546 * If we get here, the framebuffer is complete!
548 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
555 _mesa_IsRenderbufferEXT(GLuint renderbuffer
)
557 GET_CURRENT_CONTEXT(ctx
);
558 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
560 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
561 if (rb
!= NULL
&& rb
!= &DummyRenderbuffer
)
569 _mesa_BindRenderbufferEXT(GLenum target
, GLuint renderbuffer
)
571 struct gl_renderbuffer
*newRb
;
572 GET_CURRENT_CONTEXT(ctx
);
574 ASSERT_OUTSIDE_BEGIN_END(ctx
);
576 if (target
!= GL_RENDERBUFFER_EXT
) {
577 _mesa_error(ctx
, GL_INVALID_ENUM
,
578 "glBindRenderbufferEXT(target)");
582 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
583 /* The above doesn't fully flush the drivers in the way that a
584 * glFlush does, but that is required here:
586 if (ctx
->Driver
.Flush
)
587 ctx
->Driver
.Flush(ctx
);
591 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
592 if (newRb
== &DummyRenderbuffer
) {
593 /* ID was reserved, but no real renderbuffer object made yet */
597 /* create new renderbuffer object */
598 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
600 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindRenderbufferEXT");
603 ASSERT(newRb
->AllocStorage
);
604 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
605 newRb
->RefCount
= 1; /* referenced by hash table */
612 ASSERT(newRb
!= &DummyRenderbuffer
);
614 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
619 _mesa_DeleteRenderbuffersEXT(GLsizei n
, const GLuint
*renderbuffers
)
622 GET_CURRENT_CONTEXT(ctx
);
624 ASSERT_OUTSIDE_BEGIN_END(ctx
);
625 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
627 for (i
= 0; i
< n
; i
++) {
628 if (renderbuffers
[i
] > 0) {
629 struct gl_renderbuffer
*rb
;
630 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
632 /* check if deleting currently bound renderbuffer object */
633 if (rb
== ctx
->CurrentRenderbuffer
) {
635 ASSERT(rb
->RefCount
>= 2);
636 _mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT
, 0);
639 /* Remove from hash table immediately, to free the ID.
640 * But the object will not be freed until it's no longer
641 * referenced anywhere else.
643 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
645 if (rb
!= &DummyRenderbuffer
) {
646 /* no longer referenced by hash table */
647 _mesa_reference_renderbuffer(&rb
, NULL
);
656 _mesa_GenRenderbuffersEXT(GLsizei n
, GLuint
*renderbuffers
)
658 GET_CURRENT_CONTEXT(ctx
);
662 ASSERT_OUTSIDE_BEGIN_END(ctx
);
665 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenRenderbuffersEXT(n)");
672 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
674 for (i
= 0; i
< n
; i
++) {
675 GLuint name
= first
+ i
;
676 renderbuffers
[i
] = name
;
677 /* insert dummy placeholder into hash table */
678 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
679 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, name
, &DummyRenderbuffer
);
680 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
686 * Given an internal format token for a render buffer, return the
687 * corresponding base format.
688 * This is very similar to _mesa_base_tex_format() but the set of valid
689 * internal formats is somewhat different.
691 * \return one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX, GL_DEPTH_COMPONENT
692 * GL_DEPTH_STENCIL_EXT or zero if error.
695 _mesa_base_fbo_format(GLcontext
*ctx
, GLenum internalFormat
)
697 switch (internalFormat
) {
716 case GL_STENCIL_INDEX
:
717 case GL_STENCIL_INDEX1_EXT
:
718 case GL_STENCIL_INDEX4_EXT
:
719 case GL_STENCIL_INDEX8_EXT
:
720 case GL_STENCIL_INDEX16_EXT
:
721 return GL_STENCIL_INDEX
;
722 case GL_DEPTH_COMPONENT
:
723 case GL_DEPTH_COMPONENT16
:
724 case GL_DEPTH_COMPONENT24
:
725 case GL_DEPTH_COMPONENT32
:
726 return GL_DEPTH_COMPONENT
;
727 case GL_DEPTH_STENCIL_EXT
:
728 case GL_DEPTH24_STENCIL8_EXT
:
729 if (ctx
->Extensions
.EXT_packed_depth_stencil
)
730 return GL_DEPTH_STENCIL_EXT
;
733 /* XXX add floating point formats eventually */
741 _mesa_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
742 GLsizei width
, GLsizei height
)
744 struct gl_renderbuffer
*rb
;
746 GET_CURRENT_CONTEXT(ctx
);
748 ASSERT_OUTSIDE_BEGIN_END(ctx
);
750 if (target
!= GL_RENDERBUFFER_EXT
) {
751 _mesa_error(ctx
, GL_INVALID_ENUM
, "glRenderbufferStorageEXT(target)");
755 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
756 if (baseFormat
== 0) {
757 _mesa_error(ctx
, GL_INVALID_ENUM
,
758 "glRenderbufferStorageEXT(internalFormat)");
762 if (width
< 1 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
763 _mesa_error(ctx
, GL_INVALID_VALUE
, "glRenderbufferStorageEXT(width)");
767 if (height
< 1 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
768 _mesa_error(ctx
, GL_INVALID_VALUE
, "glRenderbufferStorageEXT(height)");
772 rb
= ctx
->CurrentRenderbuffer
;
775 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glRenderbufferStorageEXT");
779 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
781 if (rb
->InternalFormat
== internalFormat
&&
782 rb
->Width
== (GLuint
) width
&&
783 rb
->Height
== (GLuint
) height
) {
784 /* no change in allocation needed */
788 /* These MUST get set by the AllocStorage func */
789 rb
->_ActualFormat
= 0;
798 /* Now allocate the storage */
799 ASSERT(rb
->AllocStorage
);
800 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
801 /* No error - check/set fields now */
802 assert(rb
->_ActualFormat
);
803 assert(rb
->Width
== (GLuint
) width
);
804 assert(rb
->Height
== (GLuint
) height
);
805 assert(rb
->RedBits
|| rb
->GreenBits
|| rb
->BlueBits
|| rb
->AlphaBits
||
806 rb
->DepthBits
|| rb
->StencilBits
|| rb
->IndexBits
);
807 rb
->InternalFormat
= internalFormat
;
808 rb
->_BaseFormat
= baseFormat
;
811 /* Probably ran out of memory - clear the fields */
814 rb
->InternalFormat
= GL_NONE
;
815 rb
->_ActualFormat
= GL_NONE
;
816 rb
->_BaseFormat
= GL_NONE
;
827 test_framebuffer_completeness(ctx, fb);
829 /* XXX if this renderbuffer is attached anywhere, invalidate attachment
836 _mesa_GetRenderbufferParameterivEXT(GLenum target
, GLenum pname
, GLint
*params
)
838 GET_CURRENT_CONTEXT(ctx
);
840 ASSERT_OUTSIDE_BEGIN_END(ctx
);
842 if (target
!= GL_RENDERBUFFER_EXT
) {
843 _mesa_error(ctx
, GL_INVALID_ENUM
,
844 "glGetRenderbufferParameterivEXT(target)");
848 if (!ctx
->CurrentRenderbuffer
) {
849 _mesa_error(ctx
, GL_INVALID_OPERATION
,
850 "glGetRenderbufferParameterivEXT");
854 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
857 case GL_RENDERBUFFER_WIDTH_EXT
:
858 *params
= ctx
->CurrentRenderbuffer
->Width
;
860 case GL_RENDERBUFFER_HEIGHT_EXT
:
861 *params
= ctx
->CurrentRenderbuffer
->Height
;
863 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
864 *params
= ctx
->CurrentRenderbuffer
->InternalFormat
;
866 case GL_RENDERBUFFER_RED_SIZE_EXT
:
867 *params
= ctx
->CurrentRenderbuffer
->RedBits
;
869 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
870 *params
= ctx
->CurrentRenderbuffer
->GreenBits
;
872 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
873 *params
= ctx
->CurrentRenderbuffer
->BlueBits
;
875 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
876 *params
= ctx
->CurrentRenderbuffer
->AlphaBits
;
878 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
879 *params
= ctx
->CurrentRenderbuffer
->DepthBits
;
881 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
882 *params
= ctx
->CurrentRenderbuffer
->StencilBits
;
885 _mesa_error(ctx
, GL_INVALID_ENUM
,
886 "glGetRenderbufferParameterivEXT(target)");
893 _mesa_IsFramebufferEXT(GLuint framebuffer
)
895 GET_CURRENT_CONTEXT(ctx
);
896 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
898 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
899 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
907 check_begin_texture_render(GLcontext
*ctx
, struct gl_framebuffer
*fb
)
910 ASSERT(ctx
->Driver
.RenderTexture
);
911 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
912 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
913 struct gl_texture_object
*texObj
= att
->Texture
;
915 && att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
]) {
916 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
923 * Examine all the framebuffer's attachments to see if any are textures.
924 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
925 * notify the device driver that the texture image may have changed.
928 check_end_texture_render(GLcontext
*ctx
, struct gl_framebuffer
*fb
)
930 if (ctx
->Driver
.FinishRenderTexture
) {
932 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
933 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
934 if (att
->Texture
&& att
->Renderbuffer
) {
935 ctx
->Driver
.FinishRenderTexture(ctx
, att
);
943 _mesa_BindFramebufferEXT(GLenum target
, GLuint framebuffer
)
945 struct gl_framebuffer
*newFb
, *newFbread
;
946 GLboolean bindReadBuf
, bindDrawBuf
;
947 GET_CURRENT_CONTEXT(ctx
);
949 ASSERT_OUTSIDE_BEGIN_END(ctx
);
951 if (!ctx
->Extensions
.EXT_framebuffer_object
) {
952 _mesa_error(ctx
, GL_INVALID_OPERATION
,
953 "glBindFramebufferEXT(unsupported)");
958 #if FEATURE_EXT_framebuffer_blit
959 case GL_DRAW_FRAMEBUFFER_EXT
:
960 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
961 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
964 bindDrawBuf
= GL_TRUE
;
965 bindReadBuf
= GL_FALSE
;
967 case GL_READ_FRAMEBUFFER_EXT
:
968 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
969 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
972 bindDrawBuf
= GL_FALSE
;
973 bindReadBuf
= GL_TRUE
;
976 case GL_FRAMEBUFFER_EXT
:
977 bindDrawBuf
= GL_TRUE
;
978 bindReadBuf
= GL_TRUE
;
981 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
985 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
987 if (ctx
->Driver
.Flush
) {
988 ctx
->Driver
.Flush(ctx
);
992 /* Binding a user-created framebuffer object */
993 newFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
994 if (newFb
== &DummyFramebuffer
) {
995 /* ID was reserved, but no real framebuffer object made yet */
999 /* create new framebuffer object */
1000 newFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
1002 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
1005 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newFb
);
1010 /* Binding the window system framebuffer (which was originally set
1011 * with MakeCurrent).
1013 newFb
= ctx
->WinSysDrawBuffer
;
1014 newFbread
= ctx
->WinSysReadBuffer
;
1018 ASSERT(newFb
!= &DummyFramebuffer
);
1021 * XXX check if re-binding same buffer and skip some of this code.
1025 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newFbread
);
1029 /* check if old FB had any texture attachments */
1030 check_end_texture_render(ctx
, ctx
->DrawBuffer
);
1032 /* check if time to delete this framebuffer */
1033 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newFb
);
1035 if (newFb
->Name
!= 0) {
1036 /* check if newly bound framebuffer has any texture attachments */
1037 check_begin_texture_render(ctx
, newFb
);
1041 if (ctx
->Driver
.BindFramebuffer
) {
1042 ctx
->Driver
.BindFramebuffer(ctx
, target
, newFb
, newFbread
);
1048 _mesa_DeleteFramebuffersEXT(GLsizei n
, const GLuint
*framebuffers
)
1051 GET_CURRENT_CONTEXT(ctx
);
1053 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1054 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1055 /* The above doesn't fully flush the drivers in the way that a
1056 * glFlush does, but that is required here:
1058 if (ctx
->Driver
.Flush
)
1059 ctx
->Driver
.Flush(ctx
);
1061 for (i
= 0; i
< n
; i
++) {
1062 if (framebuffers
[i
] > 0) {
1063 struct gl_framebuffer
*fb
;
1064 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
1066 ASSERT(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
1068 /* check if deleting currently bound framebuffer object */
1069 if (fb
== ctx
->DrawBuffer
) {
1071 ASSERT(fb
->RefCount
>= 2);
1072 _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT
, 0);
1075 /* remove from hash table immediately, to free the ID */
1076 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
1078 if (fb
!= &DummyFramebuffer
) {
1079 /* But the object will not be freed until it's no longer
1080 * bound in any context.
1082 _mesa_unreference_framebuffer(&fb
);
1091 _mesa_GenFramebuffersEXT(GLsizei n
, GLuint
*framebuffers
)
1093 GET_CURRENT_CONTEXT(ctx
);
1097 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1100 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenFramebuffersEXT(n)");
1107 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
1109 for (i
= 0; i
< n
; i
++) {
1110 GLuint name
= first
+ i
;
1111 framebuffers
[i
] = name
;
1112 /* insert dummy placeholder into hash table */
1113 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1114 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, name
, &DummyFramebuffer
);
1115 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1122 _mesa_CheckFramebufferStatusEXT(GLenum target
)
1124 struct gl_framebuffer
*buffer
;
1125 GET_CURRENT_CONTEXT(ctx
);
1127 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
1130 #if FEATURE_EXT_framebuffer_blit
1131 case GL_DRAW_FRAMEBUFFER_EXT
:
1132 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1133 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
1136 buffer
= ctx
->DrawBuffer
;
1138 case GL_READ_FRAMEBUFFER_EXT
:
1139 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1140 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
1143 buffer
= ctx
->ReadBuffer
;
1146 case GL_FRAMEBUFFER_EXT
:
1147 buffer
= ctx
->DrawBuffer
;
1150 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
1151 return 0; /* formerly GL_FRAMEBUFFER_STATUS_ERROR_EXT */
1154 if (buffer
->Name
== 0) {
1155 /* The window system / default framebuffer is always complete */
1156 return GL_FRAMEBUFFER_COMPLETE_EXT
;
1159 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1161 _mesa_test_framebuffer_completeness(ctx
, buffer
);
1162 return buffer
->_Status
;
1168 * Common code called by glFramebufferTexture1D/2D/3DEXT().
1171 framebuffer_texture(GLcontext
*ctx
, const char *caller
, GLenum target
,
1172 GLenum attachment
, GLenum textarget
, GLuint texture
,
1173 GLint level
, GLint zoffset
)
1175 struct gl_renderbuffer_attachment
*att
;
1176 struct gl_texture_object
*texObj
= NULL
;
1177 struct gl_framebuffer
*fb
;
1179 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1181 if (target
!= GL_FRAMEBUFFER_EXT
) {
1182 _mesa_error(ctx
, GL_INVALID_ENUM
,
1183 "glFramebufferTexture%sEXT(target)", caller
);
1187 fb
= ctx
->DrawBuffer
;
1190 /* check framebuffer binding */
1191 if (fb
->Name
== 0) {
1192 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1193 "glFramebufferTexture%sEXT", caller
);
1198 /* The textarget, level, and zoffset parameters are only validated if
1199 * texture is non-zero.
1202 GLboolean err
= GL_TRUE
;
1204 texObj
= _mesa_lookup_texture(ctx
, texture
);
1205 if (texObj
!= NULL
) {
1206 if (textarget
== 0) {
1207 err
= (texObj
->Target
!= GL_TEXTURE_3D
) &&
1208 (texObj
->Target
!= GL_TEXTURE_1D_ARRAY_EXT
) &&
1209 (texObj
->Target
!= GL_TEXTURE_2D_ARRAY_EXT
);
1212 err
= (texObj
->Target
== GL_TEXTURE_CUBE_MAP
)
1213 ? !IS_CUBE_FACE(textarget
)
1214 : (texObj
->Target
!= textarget
);
1219 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1220 "glFramebufferTexture%sEXT(texture target mismatch)",
1225 if (texObj
->Target
== GL_TEXTURE_3D
) {
1226 const GLint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
1227 if (zoffset
< 0 || zoffset
>= maxSize
) {
1228 _mesa_error(ctx
, GL_INVALID_VALUE
,
1229 "glFramebufferTexture%sEXT(zoffset)", caller
);
1233 else if ((texObj
->Target
== GL_TEXTURE_1D_ARRAY_EXT
) ||
1234 (texObj
->Target
== GL_TEXTURE_2D_ARRAY_EXT
)) {
1235 if (zoffset
< 0 || zoffset
>= ctx
->Const
.MaxArrayTextureLayers
) {
1236 _mesa_error(ctx
, GL_INVALID_VALUE
,
1237 "glFramebufferTexture%sEXT(layer)", caller
);
1244 (level
>= _mesa_max_texture_levels(ctx
, texObj
->Target
))) {
1245 _mesa_error(ctx
, GL_INVALID_VALUE
,
1246 "glFramebufferTexture%sEXT(level)", caller
);
1251 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
1253 _mesa_error(ctx
, GL_INVALID_ENUM
,
1254 "glFramebufferTexture%sEXT(attachment)", caller
);
1258 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1259 /* The above doesn't fully flush the drivers in the way that a
1260 * glFlush does, but that is required here:
1262 if (ctx
->Driver
.Flush
)
1263 ctx
->Driver
.Flush(ctx
);
1265 _glthread_LOCK_MUTEX(fb
->Mutex
);
1267 _mesa_set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
1271 _mesa_remove_attachment(ctx
, att
);
1273 _glthread_UNLOCK_MUTEX(fb
->Mutex
);
1279 _mesa_FramebufferTexture1DEXT(GLenum target
, GLenum attachment
,
1280 GLenum textarget
, GLuint texture
, GLint level
)
1282 GET_CURRENT_CONTEXT(ctx
);
1284 if ((texture
!= 0) && (textarget
!= GL_TEXTURE_1D
)) {
1285 _mesa_error(ctx
, GL_INVALID_ENUM
,
1286 "glFramebufferTexture1DEXT(textarget)");
1290 framebuffer_texture(ctx
, "1D", target
, attachment
, textarget
, texture
,
1296 _mesa_FramebufferTexture2DEXT(GLenum target
, GLenum attachment
,
1297 GLenum textarget
, GLuint texture
, GLint level
)
1299 GET_CURRENT_CONTEXT(ctx
);
1301 if ((texture
!= 0) &&
1302 (textarget
!= GL_TEXTURE_2D
) &&
1303 (textarget
!= GL_TEXTURE_RECTANGLE_ARB
) &&
1304 (!IS_CUBE_FACE(textarget
))) {
1305 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1306 "glFramebufferTexture2DEXT(textarget)");
1310 framebuffer_texture(ctx
, "2D", target
, attachment
, textarget
, texture
,
1316 _mesa_FramebufferTexture3DEXT(GLenum target
, GLenum attachment
,
1317 GLenum textarget
, GLuint texture
,
1318 GLint level
, GLint zoffset
)
1320 GET_CURRENT_CONTEXT(ctx
);
1322 if ((texture
!= 0) && (textarget
!= GL_TEXTURE_3D
)) {
1323 _mesa_error(ctx
, GL_INVALID_ENUM
,
1324 "glFramebufferTexture3DEXT(textarget)");
1328 framebuffer_texture(ctx
, "3D", target
, attachment
, textarget
, texture
,
1334 _mesa_FramebufferTextureLayerEXT(GLenum target
, GLenum attachment
,
1335 GLuint texture
, GLint level
, GLint layer
)
1337 GET_CURRENT_CONTEXT(ctx
);
1339 framebuffer_texture(ctx
, "Layer", target
, attachment
, 0, texture
,
1345 _mesa_FramebufferRenderbufferEXT(GLenum target
, GLenum attachment
,
1346 GLenum renderbufferTarget
,
1347 GLuint renderbuffer
)
1349 struct gl_renderbuffer_attachment
*att
;
1350 struct gl_framebuffer
*fb
;
1351 struct gl_renderbuffer
*rb
;
1352 GET_CURRENT_CONTEXT(ctx
);
1354 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1357 #if FEATURE_EXT_framebuffer_blit
1358 case GL_DRAW_FRAMEBUFFER_EXT
:
1359 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1360 _mesa_error(ctx
, GL_INVALID_ENUM
,
1361 "glFramebufferRenderbufferEXT(target)");
1364 fb
= ctx
->DrawBuffer
;
1366 case GL_READ_FRAMEBUFFER_EXT
:
1367 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1368 _mesa_error(ctx
, GL_INVALID_ENUM
,
1369 "glFramebufferRenderbufferEXT(target)");
1372 fb
= ctx
->ReadBuffer
;
1375 case GL_FRAMEBUFFER_EXT
:
1376 fb
= ctx
->DrawBuffer
;
1379 _mesa_error(ctx
, GL_INVALID_ENUM
,
1380 "glFramebufferRenderbufferEXT(target)");
1384 if (renderbufferTarget
!= GL_RENDERBUFFER_EXT
) {
1385 _mesa_error(ctx
, GL_INVALID_ENUM
,
1386 "glFramebufferRenderbufferEXT(renderbufferTarget)");
1390 if (fb
->Name
== 0) {
1391 /* Can't attach new renderbuffers to a window system framebuffer */
1392 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glFramebufferRenderbufferEXT");
1396 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
1398 _mesa_error(ctx
, GL_INVALID_ENUM
,
1399 "glFramebufferRenderbufferEXT(attachment)");
1404 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1406 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1407 "glFramebufferRenderbufferEXT(renderbuffer)");
1412 /* remove renderbuffer attachment */
1416 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1417 /* The above doesn't fully flush the drivers in the way that a
1418 * glFlush does, but that is required here:
1420 if (ctx
->Driver
.Flush
)
1421 ctx
->Driver
.Flush(ctx
);
1423 assert(ctx
->Driver
.FramebufferRenderbuffer
);
1424 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
1426 /* Some subsequent GL commands may depend on the framebuffer's visual
1427 * after the binding is updated. Update visual info now.
1429 _mesa_update_framebuffer_visual(fb
);
1434 _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target
, GLenum attachment
,
1435 GLenum pname
, GLint
*params
)
1437 const struct gl_renderbuffer_attachment
*att
;
1438 struct gl_framebuffer
*buffer
;
1439 GET_CURRENT_CONTEXT(ctx
);
1441 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1444 #if FEATURE_EXT_framebuffer_blit
1445 case GL_DRAW_FRAMEBUFFER_EXT
:
1446 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1447 _mesa_error(ctx
, GL_INVALID_ENUM
,
1448 "glGetFramebufferAttachmentParameterivEXT(target)");
1451 buffer
= ctx
->DrawBuffer
;
1453 case GL_READ_FRAMEBUFFER_EXT
:
1454 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1455 _mesa_error(ctx
, GL_INVALID_ENUM
,
1456 "glGetFramebufferAttachmentParameterivEXT(target)");
1459 buffer
= ctx
->ReadBuffer
;
1462 case GL_FRAMEBUFFER_EXT
:
1463 buffer
= ctx
->DrawBuffer
;
1466 _mesa_error(ctx
, GL_INVALID_ENUM
,
1467 "glGetFramebufferAttachmentParameterivEXT(target)");
1471 if (buffer
->Name
== 0) {
1472 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1473 "glGetFramebufferAttachmentParameterivEXT");
1477 att
= _mesa_get_attachment(ctx
, buffer
, attachment
);
1479 _mesa_error(ctx
, GL_INVALID_ENUM
,
1480 "glGetFramebufferAttachmentParameterivEXT(attachment)");
1484 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1485 /* The above doesn't fully flush the drivers in the way that a
1486 * glFlush does, but that is required here:
1488 if (ctx
->Driver
.Flush
)
1489 ctx
->Driver
.Flush(ctx
);
1492 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
1493 *params
= att
->Type
;
1495 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
1496 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
1497 *params
= att
->Renderbuffer
->Name
;
1499 else if (att
->Type
== GL_TEXTURE
) {
1500 *params
= att
->Texture
->Name
;
1503 _mesa_error(ctx
, GL_INVALID_ENUM
,
1504 "glGetFramebufferAttachmentParameterivEXT(pname)");
1507 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
1508 if (att
->Type
== GL_TEXTURE
) {
1509 *params
= att
->TextureLevel
;
1512 _mesa_error(ctx
, GL_INVALID_ENUM
,
1513 "glGetFramebufferAttachmentParameterivEXT(pname)");
1516 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
1517 if (att
->Type
== GL_TEXTURE
) {
1518 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
1519 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
1526 _mesa_error(ctx
, GL_INVALID_ENUM
,
1527 "glGetFramebufferAttachmentParameterivEXT(pname)");
1530 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
1531 if (att
->Type
== GL_TEXTURE
) {
1532 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_3D
) {
1533 *params
= att
->Zoffset
;
1540 _mesa_error(ctx
, GL_INVALID_ENUM
,
1541 "glGetFramebufferAttachmentParameterivEXT(pname)");
1545 _mesa_error(ctx
, GL_INVALID_ENUM
,
1546 "glGetFramebufferAttachmentParameterivEXT(pname)");
1553 _mesa_GenerateMipmapEXT(GLenum target
)
1555 struct gl_texture_unit
*texUnit
;
1556 struct gl_texture_object
*texObj
;
1557 GET_CURRENT_CONTEXT(ctx
);
1559 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1560 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1566 case GL_TEXTURE_CUBE_MAP
:
1567 /* OK, legal value */
1570 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGenerateMipmapEXT(target)");
1574 texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1575 texObj
= _mesa_select_tex_object(ctx
, texUnit
, target
);
1577 /* XXX this might not handle cube maps correctly */
1578 _mesa_lock_texture(ctx
, texObj
);
1579 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
1580 _mesa_unlock_texture(ctx
, texObj
);
1584 #if FEATURE_EXT_framebuffer_blit
1586 _mesa_BlitFramebufferEXT(GLint srcX0
, GLint srcY0
, GLint srcX1
, GLint srcY1
,
1587 GLint dstX0
, GLint dstY0
, GLint dstX1
, GLint dstY1
,
1588 GLbitfield mask
, GLenum filter
)
1590 GET_CURRENT_CONTEXT(ctx
);
1592 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1593 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1595 if (ctx
->NewState
) {
1596 _mesa_update_state(ctx
);
1599 if (!ctx
->ReadBuffer
) {
1603 /* check for complete framebuffers */
1604 if (ctx
->DrawBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
||
1605 ctx
->ReadBuffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1606 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
1607 "glBlitFramebufferEXT(incomplete draw/read buffers)");
1611 if (filter
!= GL_NEAREST
&& filter
!= GL_LINEAR
) {
1612 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBlitFramebufferEXT(filter)");
1616 if (mask
& ~(GL_COLOR_BUFFER_BIT
|
1617 GL_DEPTH_BUFFER_BIT
|
1618 GL_STENCIL_BUFFER_BIT
)) {
1619 _mesa_error( ctx
, GL_INVALID_VALUE
, "glBlitFramebufferEXT(mask)");
1623 /* depth/stencil must be blitted with nearest filtering */
1624 if ((mask
& (GL_DEPTH_BUFFER_BIT
| GL_STENCIL_BUFFER_BIT
))
1625 && filter
!= GL_NEAREST
) {
1626 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1627 "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter");
1631 if (mask
& GL_STENCIL_BUFFER_BIT
) {
1632 struct gl_renderbuffer
*readRb
= ctx
->ReadBuffer
->_StencilBuffer
;
1633 struct gl_renderbuffer
*drawRb
= ctx
->DrawBuffer
->_StencilBuffer
;
1634 if (readRb
->StencilBits
!= drawRb
->StencilBits
) {
1635 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1636 "glBlitFramebufferEXT(stencil buffer size mismatch");
1641 if (mask
& GL_DEPTH_BUFFER_BIT
) {
1642 struct gl_renderbuffer
*readRb
= ctx
->ReadBuffer
->_DepthBuffer
;
1643 struct gl_renderbuffer
*drawRb
= ctx
->DrawBuffer
->_DepthBuffer
;
1644 if (readRb
->DepthBits
!= drawRb
->DepthBits
) {
1645 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1646 "glBlitFramebufferEXT(depth buffer size mismatch");
1651 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1652 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBlitFramebufferEXT");
1656 ASSERT(ctx
->Driver
.BlitFramebuffer
);
1657 ctx
->Driver
.BlitFramebuffer(ctx
,
1658 srcX0
, srcY0
, srcX1
, srcY1
,
1659 dstX0
, dstY0
, dstX1
, dstY1
,
1662 #endif /* FEATURE_EXT_framebuffer_blit */