2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 1999-2009 VMware, Inc. 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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
28 * GL_EXT/ARB_framebuffer_object extensions
41 #include "framebuffer.h"
42 #include "glformats.h"
45 #include "multisample.h"
47 #include "renderbuffer.h"
53 /** Set this to 1 to debug/log glBlitFramebuffer() calls */
60 * None of the GL_EXT_framebuffer_object functions are compiled into
67 * When glGenRender/FramebuffersEXT() is called we insert pointers to
68 * these placeholder objects into the hash table.
69 * Later, when the object ID is first bound, we replace the placeholder
70 * with the real frame/renderbuffer.
72 static struct gl_framebuffer DummyFramebuffer
;
73 static struct gl_renderbuffer DummyRenderbuffer
;
75 /* We bind this framebuffer when applications pass a NULL
76 * drawable/surface in make current. */
77 static struct gl_framebuffer IncompleteFramebuffer
;
81 delete_dummy_renderbuffer(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
)
87 delete_dummy_framebuffer(struct gl_framebuffer
*fb
)
94 _mesa_init_fbobjects(struct gl_context
*ctx
)
96 _glthread_INIT_MUTEX(DummyFramebuffer
.Mutex
);
97 _glthread_INIT_MUTEX(DummyRenderbuffer
.Mutex
);
98 _glthread_INIT_MUTEX(IncompleteFramebuffer
.Mutex
);
99 DummyFramebuffer
.Delete
= delete_dummy_framebuffer
;
100 DummyRenderbuffer
.Delete
= delete_dummy_renderbuffer
;
101 IncompleteFramebuffer
.Delete
= delete_dummy_framebuffer
;
104 struct gl_framebuffer
*
105 _mesa_get_incomplete_framebuffer(void)
107 return &IncompleteFramebuffer
;
111 * Helper routine for getting a gl_renderbuffer.
113 struct gl_renderbuffer
*
114 _mesa_lookup_renderbuffer(struct gl_context
*ctx
, GLuint id
)
116 struct gl_renderbuffer
*rb
;
121 rb
= (struct gl_renderbuffer
*)
122 _mesa_HashLookup(ctx
->Shared
->RenderBuffers
, id
);
128 * Helper routine for getting a gl_framebuffer.
130 struct gl_framebuffer
*
131 _mesa_lookup_framebuffer(struct gl_context
*ctx
, GLuint id
)
133 struct gl_framebuffer
*fb
;
138 fb
= (struct gl_framebuffer
*)
139 _mesa_HashLookup(ctx
->Shared
->FrameBuffers
, id
);
145 * Mark the given framebuffer as invalid. This will force the
146 * test for framebuffer completeness to be done before the framebuffer
150 invalidate_framebuffer(struct gl_framebuffer
*fb
)
152 fb
->_Status
= 0; /* "indeterminate" */
157 * Return the gl_framebuffer object which corresponds to the given
158 * framebuffer target, such as GL_DRAW_FRAMEBUFFER.
159 * Check support for GL_EXT_framebuffer_blit to determine if certain
161 * \return gl_framebuffer pointer or NULL if target is illegal
163 static struct gl_framebuffer
*
164 get_framebuffer_target(struct gl_context
*ctx
, GLenum target
)
166 bool have_fb_blit
= _mesa_is_gles3(ctx
) ||
167 (ctx
->Extensions
.EXT_framebuffer_blit
&& _mesa_is_desktop_gl(ctx
));
169 case GL_DRAW_FRAMEBUFFER
:
170 return have_fb_blit
? ctx
->DrawBuffer
: NULL
;
171 case GL_READ_FRAMEBUFFER
:
172 return have_fb_blit
? ctx
->ReadBuffer
: NULL
;
173 case GL_FRAMEBUFFER_EXT
:
174 return ctx
->DrawBuffer
;
182 * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding
183 * gl_renderbuffer_attachment object.
184 * This function is only used for user-created FB objects, not the
185 * default / window-system FB object.
186 * If \p attachment is GL_DEPTH_STENCIL_ATTACHMENT, return a pointer to
187 * the depth buffer attachment point.
189 struct gl_renderbuffer_attachment
*
190 _mesa_get_attachment(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
195 assert(_mesa_is_user_fbo(fb
));
197 switch (attachment
) {
198 case GL_COLOR_ATTACHMENT0_EXT
:
199 case GL_COLOR_ATTACHMENT1_EXT
:
200 case GL_COLOR_ATTACHMENT2_EXT
:
201 case GL_COLOR_ATTACHMENT3_EXT
:
202 case GL_COLOR_ATTACHMENT4_EXT
:
203 case GL_COLOR_ATTACHMENT5_EXT
:
204 case GL_COLOR_ATTACHMENT6_EXT
:
205 case GL_COLOR_ATTACHMENT7_EXT
:
206 case GL_COLOR_ATTACHMENT8_EXT
:
207 case GL_COLOR_ATTACHMENT9_EXT
:
208 case GL_COLOR_ATTACHMENT10_EXT
:
209 case GL_COLOR_ATTACHMENT11_EXT
:
210 case GL_COLOR_ATTACHMENT12_EXT
:
211 case GL_COLOR_ATTACHMENT13_EXT
:
212 case GL_COLOR_ATTACHMENT14_EXT
:
213 case GL_COLOR_ATTACHMENT15_EXT
:
214 /* Only OpenGL ES 1.x forbids color attachments other than
215 * GL_COLOR_ATTACHMENT0. For all other APIs the limit set by the
218 i
= attachment
- GL_COLOR_ATTACHMENT0_EXT
;
219 if (i
>= ctx
->Const
.MaxColorAttachments
220 || (i
> 0 && ctx
->API
== API_OPENGLES
)) {
223 return &fb
->Attachment
[BUFFER_COLOR0
+ i
];
224 case GL_DEPTH_STENCIL_ATTACHMENT
:
225 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles3(ctx
))
228 case GL_DEPTH_ATTACHMENT_EXT
:
229 return &fb
->Attachment
[BUFFER_DEPTH
];
230 case GL_STENCIL_ATTACHMENT_EXT
:
231 return &fb
->Attachment
[BUFFER_STENCIL
];
239 * As above, but only used for getting attachments of the default /
240 * window-system framebuffer (not user-created framebuffer objects).
242 static struct gl_renderbuffer_attachment
*
243 _mesa_get_fb0_attachment(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
246 assert(_mesa_is_winsys_fbo(fb
));
248 if (_mesa_is_gles3(ctx
)) {
249 assert(attachment
== GL_BACK
||
250 attachment
== GL_DEPTH
||
251 attachment
== GL_STENCIL
);
252 switch (attachment
) {
254 /* Since there is no stereo rendering in ES 3.0, only return the
257 if (ctx
->DrawBuffer
->Visual
.doubleBufferMode
)
258 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
259 return &fb
->Attachment
[BUFFER_FRONT_LEFT
];
261 return &fb
->Attachment
[BUFFER_DEPTH
];
263 return &fb
->Attachment
[BUFFER_STENCIL
];
267 switch (attachment
) {
269 return &fb
->Attachment
[BUFFER_FRONT_LEFT
];
271 return &fb
->Attachment
[BUFFER_FRONT_RIGHT
];
273 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
275 return &fb
->Attachment
[BUFFER_BACK_RIGHT
];
277 if (fb
->Visual
.numAuxBuffers
== 1) {
278 return &fb
->Attachment
[BUFFER_AUX0
];
282 /* Page 336 (page 352 of the PDF) of the OpenGL 3.0 spec says:
284 * "If the default framebuffer is bound to target, then attachment must
285 * be one of FRONT LEFT, FRONT RIGHT, BACK LEFT, BACK RIGHT, or AUXi,
286 * identifying a color buffer; DEPTH, identifying the depth buffer; or
287 * STENCIL, identifying the stencil buffer."
289 * Revision #34 of the ARB_framebuffer_object spec has essentially the same
290 * language. However, revision #33 of the ARB_framebuffer_object spec
293 * "If the default framebuffer is bound to <target>, then <attachment>
294 * must be one of FRONT_LEFT, FRONT_RIGHT, BACK_LEFT, BACK_RIGHT, AUXi,
295 * DEPTH_BUFFER, or STENCIL_BUFFER, identifying a color buffer, the
296 * depth buffer, or the stencil buffer, and <pname> may be
297 * FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE or
298 * FRAMEBUFFER_ATTACHMENT_OBJECT_NAME."
300 * The enum values for DEPTH_BUFFER and STENCIL_BUFFER have been removed
301 * from glext.h, so shipping apps should not use those values.
303 * Note that neither EXT_framebuffer_object nor OES_framebuffer_object
304 * support queries of the window system FBO.
307 return &fb
->Attachment
[BUFFER_DEPTH
];
309 return &fb
->Attachment
[BUFFER_STENCIL
];
318 * Remove any texture or renderbuffer attached to the given attachment
319 * point. Update reference counts, etc.
322 _mesa_remove_attachment(struct gl_context
*ctx
,
323 struct gl_renderbuffer_attachment
*att
)
325 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
327 /* tell driver that we're done rendering to this texture. */
328 if (rb
&& rb
->NeedsFinishRenderTexture
)
329 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
331 if (att
->Type
== GL_TEXTURE
) {
332 ASSERT(att
->Texture
);
333 _mesa_reference_texobj(&att
->Texture
, NULL
); /* unbind */
334 ASSERT(!att
->Texture
);
336 if (att
->Type
== GL_TEXTURE
|| att
->Type
== GL_RENDERBUFFER_EXT
) {
337 ASSERT(!att
->Texture
);
338 _mesa_reference_renderbuffer(&att
->Renderbuffer
, NULL
); /* unbind */
339 ASSERT(!att
->Renderbuffer
);
342 att
->Complete
= GL_TRUE
;
346 * Create a renderbuffer which will be set up by the driver to wrap the
347 * texture image slice.
349 * By using a gl_renderbuffer (like user-allocated renderbuffers), drivers get
350 * to share most of their framebuffer rendering code between winsys,
351 * renderbuffer, and texture attachments.
353 * The allocated renderbuffer uses a non-zero Name so that drivers can check
354 * it for determining vertical orientation, but we use ~0 to make it fairly
355 * unambiguous with actual user (non-texture) renderbuffers.
358 _mesa_update_texture_renderbuffer(struct gl_context
*ctx
,
359 struct gl_framebuffer
*fb
,
360 struct gl_renderbuffer_attachment
*att
)
362 struct gl_texture_image
*texImage
;
363 struct gl_renderbuffer
*rb
;
365 texImage
= att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
369 rb
= att
->Renderbuffer
;
371 rb
= ctx
->Driver
.NewRenderbuffer(ctx
, ~0);
373 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glFramebufferTexture()");
376 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
378 /* This can't get called on a texture renderbuffer, so set it to NULL
379 * for clarity compared to user renderbuffers.
381 rb
->AllocStorage
= NULL
;
383 rb
->NeedsFinishRenderTexture
= ctx
->Driver
.FinishRenderTexture
!= NULL
;
386 rb
->_BaseFormat
= texImage
->_BaseFormat
;
387 rb
->Format
= texImage
->TexFormat
;
388 rb
->InternalFormat
= texImage
->InternalFormat
;
389 rb
->Width
= texImage
->Width2
;
390 rb
->Height
= texImage
->Height2
;
391 rb
->NumSamples
= texImage
->NumSamples
;
392 rb
->TexImage
= texImage
;
394 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
398 * Bind a texture object to an attachment point.
399 * The previous binding, if any, will be removed first.
402 _mesa_set_texture_attachment(struct gl_context
*ctx
,
403 struct gl_framebuffer
*fb
,
404 struct gl_renderbuffer_attachment
*att
,
405 struct gl_texture_object
*texObj
,
406 GLenum texTarget
, GLuint level
, GLuint zoffset
,
409 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
411 if (rb
&& rb
->NeedsFinishRenderTexture
)
412 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
414 if (att
->Texture
== texObj
) {
415 /* re-attaching same texture */
416 ASSERT(att
->Type
== GL_TEXTURE
);
420 _mesa_remove_attachment(ctx
, att
);
421 att
->Type
= GL_TEXTURE
;
422 assert(!att
->Texture
);
423 _mesa_reference_texobj(&att
->Texture
, texObj
);
425 invalidate_framebuffer(fb
);
427 /* always update these fields */
428 att
->TextureLevel
= level
;
429 att
->CubeMapFace
= _mesa_tex_target_to_face(texTarget
);
430 att
->Zoffset
= zoffset
;
431 att
->Layered
= layered
;
432 att
->Complete
= GL_FALSE
;
434 _mesa_update_texture_renderbuffer(ctx
, fb
, att
);
439 * Bind a renderbuffer to an attachment point.
440 * The previous binding, if any, will be removed first.
443 _mesa_set_renderbuffer_attachment(struct gl_context
*ctx
,
444 struct gl_renderbuffer_attachment
*att
,
445 struct gl_renderbuffer
*rb
)
447 /* XXX check if re-doing same attachment, exit early */
448 _mesa_remove_attachment(ctx
, att
);
449 att
->Type
= GL_RENDERBUFFER_EXT
;
450 att
->Texture
= NULL
; /* just to be safe */
451 att
->Complete
= GL_FALSE
;
452 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
457 * Fallback for ctx->Driver.FramebufferRenderbuffer()
458 * Attach a renderbuffer object to a framebuffer object.
461 _mesa_framebuffer_renderbuffer(struct gl_context
*ctx
,
462 struct gl_framebuffer
*fb
,
463 GLenum attachment
, struct gl_renderbuffer
*rb
)
465 struct gl_renderbuffer_attachment
*att
;
467 _glthread_LOCK_MUTEX(fb
->Mutex
);
469 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
472 _mesa_set_renderbuffer_attachment(ctx
, att
, rb
);
473 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
474 /* do stencil attachment here (depth already done above) */
475 att
= _mesa_get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
);
477 _mesa_set_renderbuffer_attachment(ctx
, att
, rb
);
479 rb
->AttachedAnytime
= GL_TRUE
;
482 _mesa_remove_attachment(ctx
, att
);
485 invalidate_framebuffer(fb
);
487 _glthread_UNLOCK_MUTEX(fb
->Mutex
);
492 * Fallback for ctx->Driver.ValidateFramebuffer()
493 * Check if the renderbuffer's formats are supported by the software
495 * Drivers should probably override this.
498 _mesa_validate_framebuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
501 for (buf
= 0; buf
< BUFFER_COUNT
; buf
++) {
502 const struct gl_renderbuffer
*rb
= fb
->Attachment
[buf
].Renderbuffer
;
504 switch (rb
->_BaseFormat
) {
506 case GL_LUMINANCE_ALPHA
:
511 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
515 switch (rb
->Format
) {
516 /* XXX This list is likely incomplete. */
517 case MESA_FORMAT_RGB9_E5_FLOAT
:
518 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
521 /* render buffer format is supported by software rendering */
530 * Return true if the framebuffer has a combined depth/stencil
531 * renderbuffer attached.
534 _mesa_has_depthstencil_combined(const struct gl_framebuffer
*fb
)
536 const struct gl_renderbuffer_attachment
*depth
=
537 &fb
->Attachment
[BUFFER_DEPTH
];
538 const struct gl_renderbuffer_attachment
*stencil
=
539 &fb
->Attachment
[BUFFER_STENCIL
];
541 if (depth
->Type
== stencil
->Type
) {
542 if (depth
->Type
== GL_RENDERBUFFER_EXT
&&
543 depth
->Renderbuffer
== stencil
->Renderbuffer
)
546 if (depth
->Type
== GL_TEXTURE
&&
547 depth
->Texture
== stencil
->Texture
)
559 att_incomplete(const char *msg
)
561 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
562 _mesa_debug(NULL
, "attachment incomplete: %s\n", msg
);
571 fbo_incomplete(const char *msg
, int index
)
573 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
574 _mesa_debug(NULL
, "FBO Incomplete: %s [%d]\n", msg
, index
);
580 * Is the given base format a legal format for a color renderbuffer?
583 _mesa_is_legal_color_format(const struct gl_context
*ctx
, GLenum baseFormat
)
585 switch (baseFormat
) {
590 case GL_LUMINANCE_ALPHA
:
593 return ctx
->API
== API_OPENGL_COMPAT
&&
594 ctx
->Extensions
.ARB_framebuffer_object
;
597 return ctx
->Extensions
.ARB_texture_rg
;
605 * Is the given base format a legal format for a color renderbuffer?
608 is_format_color_renderable(const struct gl_context
*ctx
, gl_format format
, GLenum internalFormat
)
610 const GLenum baseFormat
=
611 _mesa_get_format_base_format(format
);
614 valid
= _mesa_is_legal_color_format(ctx
, baseFormat
);
615 if (!valid
|| _mesa_is_desktop_gl(ctx
)) {
619 /* Reject additional cases for GLES */
620 switch (internalFormat
) {
640 if (format
== MESA_FORMAT_ARGB2101010
&& internalFormat
!= GL_RGB10_A2
) {
649 * Is the given base format a legal format for a depth/stencil renderbuffer?
652 is_legal_depth_format(const struct gl_context
*ctx
, GLenum baseFormat
)
654 switch (baseFormat
) {
655 case GL_DEPTH_COMPONENT
:
656 case GL_DEPTH_STENCIL_EXT
:
665 * Test if an attachment point is complete and update its Complete field.
666 * \param format if GL_COLOR, this is a color attachment point,
667 * if GL_DEPTH, this is a depth component attachment point,
668 * if GL_STENCIL, this is a stencil component attachment point.
671 test_attachment_completeness(const struct gl_context
*ctx
, GLenum format
,
672 struct gl_renderbuffer_attachment
*att
)
674 assert(format
== GL_COLOR
|| format
== GL_DEPTH
|| format
== GL_STENCIL
);
676 /* assume complete */
677 att
->Complete
= GL_TRUE
;
679 /* Look for reasons why the attachment might be incomplete */
680 if (att
->Type
== GL_TEXTURE
) {
681 const struct gl_texture_object
*texObj
= att
->Texture
;
682 struct gl_texture_image
*texImage
;
686 att_incomplete("no texobj");
687 att
->Complete
= GL_FALSE
;
691 texImage
= texObj
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
693 att_incomplete("no teximage");
694 att
->Complete
= GL_FALSE
;
697 if (texImage
->Width
< 1 || texImage
->Height
< 1) {
698 att_incomplete("teximage width/height=0");
699 printf("texobj = %u\n", texObj
->Name
);
700 printf("level = %d\n", att
->TextureLevel
);
701 att
->Complete
= GL_FALSE
;
704 if (texObj
->Target
== GL_TEXTURE_3D
&& att
->Zoffset
>= texImage
->Depth
) {
705 att_incomplete("bad z offset");
706 att
->Complete
= GL_FALSE
;
710 baseFormat
= _mesa_get_format_base_format(texImage
->TexFormat
);
712 if (format
== GL_COLOR
) {
713 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
714 att_incomplete("bad format");
715 att
->Complete
= GL_FALSE
;
718 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
719 att_incomplete("compressed internalformat");
720 att
->Complete
= GL_FALSE
;
724 else if (format
== GL_DEPTH
) {
725 if (baseFormat
== GL_DEPTH_COMPONENT
) {
728 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
729 ctx
->Extensions
.ARB_depth_texture
&&
730 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
734 att
->Complete
= GL_FALSE
;
735 att_incomplete("bad depth format");
740 ASSERT(format
== GL_STENCIL
);
741 if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
742 ctx
->Extensions
.ARB_depth_texture
&&
743 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
747 /* no such thing as stencil-only textures */
748 att_incomplete("illegal stencil texture");
749 att
->Complete
= GL_FALSE
;
754 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
755 const GLenum baseFormat
=
756 _mesa_get_format_base_format(att
->Renderbuffer
->Format
);
758 ASSERT(att
->Renderbuffer
);
759 if (!att
->Renderbuffer
->InternalFormat
||
760 att
->Renderbuffer
->Width
< 1 ||
761 att
->Renderbuffer
->Height
< 1) {
762 att_incomplete("0x0 renderbuffer");
763 att
->Complete
= GL_FALSE
;
766 if (format
== GL_COLOR
) {
767 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
768 att_incomplete("bad renderbuffer color format");
769 att
->Complete
= GL_FALSE
;
773 else if (format
== GL_DEPTH
) {
774 if (baseFormat
== GL_DEPTH_COMPONENT
) {
777 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
778 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
782 att_incomplete("bad renderbuffer depth format");
783 att
->Complete
= GL_FALSE
;
788 assert(format
== GL_STENCIL
);
789 if (baseFormat
== GL_STENCIL_INDEX
) {
792 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
793 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
797 att
->Complete
= GL_FALSE
;
798 att_incomplete("bad renderbuffer stencil format");
804 ASSERT(att
->Type
== GL_NONE
);
812 * Test if the given framebuffer object is complete and update its
813 * Status field with the results.
814 * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
815 * driver to make hardware-specific validation/completeness checks.
816 * Also update the framebuffer's Width and Height fields if the
817 * framebuffer is complete.
820 _mesa_test_framebuffer_completeness(struct gl_context
*ctx
,
821 struct gl_framebuffer
*fb
)
824 GLenum intFormat
= GL_NONE
; /* color buffers' internal format */
825 GLuint minWidth
= ~0, minHeight
= ~0, maxWidth
= 0, maxHeight
= 0;
826 GLint numSamples
= -1;
827 GLint fixedSampleLocations
= -1;
830 bool layer_count_valid
= false;
831 GLuint layer_count
= 0, att_layer_count
;
833 assert(_mesa_is_user_fbo(fb
));
835 /* we're changing framebuffer fields here */
836 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
841 fb
->_AllColorBuffersFixedPoint
= GL_TRUE
;
842 fb
->_HasSNormOrFloatColorBuffer
= GL_FALSE
;
844 /* Start at -2 to more easily loop over all attachment points.
849 for (i
= -2; i
< (GLint
) ctx
->Const
.MaxColorAttachments
; i
++) {
850 struct gl_renderbuffer_attachment
*att
;
855 * XXX for ARB_fbo, only check color buffers that are named by
856 * GL_READ_BUFFER and GL_DRAW_BUFFERi.
859 /* check for attachment completeness
862 att
= &fb
->Attachment
[BUFFER_DEPTH
];
863 test_attachment_completeness(ctx
, GL_DEPTH
, att
);
864 if (!att
->Complete
) {
865 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
866 fbo_incomplete("depth attachment incomplete", -1);
871 att
= &fb
->Attachment
[BUFFER_STENCIL
];
872 test_attachment_completeness(ctx
, GL_STENCIL
, att
);
873 if (!att
->Complete
) {
874 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
875 fbo_incomplete("stencil attachment incomplete", -1);
880 att
= &fb
->Attachment
[BUFFER_COLOR0
+ i
];
881 test_attachment_completeness(ctx
, GL_COLOR
, att
);
882 if (!att
->Complete
) {
883 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
884 fbo_incomplete("color attachment incomplete", i
);
889 /* get width, height, format of the renderbuffer/texture
891 if (att
->Type
== GL_TEXTURE
) {
892 const struct gl_texture_image
*texImg
= att
->Renderbuffer
->TexImage
;
893 minWidth
= MIN2(minWidth
, texImg
->Width
);
894 maxWidth
= MAX2(maxWidth
, texImg
->Width
);
895 minHeight
= MIN2(minHeight
, texImg
->Height
);
896 maxHeight
= MAX2(maxHeight
, texImg
->Height
);
897 f
= texImg
->_BaseFormat
;
898 attFormat
= texImg
->TexFormat
;
901 if (!is_format_color_renderable(ctx
, attFormat
, texImg
->InternalFormat
) &&
902 !is_legal_depth_format(ctx
, f
)) {
903 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
904 fbo_incomplete("texture attachment incomplete", -1);
909 numSamples
= texImg
->NumSamples
;
910 else if (numSamples
!= texImg
->NumSamples
) {
911 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
912 fbo_incomplete("inconsistent sample count", -1);
916 if (fixedSampleLocations
< 0)
917 fixedSampleLocations
= texImg
->FixedSampleLocations
;
918 else if (fixedSampleLocations
!= texImg
->FixedSampleLocations
) {
919 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
920 fbo_incomplete("inconsistent fixed sample locations", -1);
924 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
925 minWidth
= MIN2(minWidth
, att
->Renderbuffer
->Width
);
926 maxWidth
= MAX2(minWidth
, att
->Renderbuffer
->Width
);
927 minHeight
= MIN2(minHeight
, att
->Renderbuffer
->Height
);
928 maxHeight
= MAX2(minHeight
, att
->Renderbuffer
->Height
);
929 f
= att
->Renderbuffer
->InternalFormat
;
930 attFormat
= att
->Renderbuffer
->Format
;
934 numSamples
= att
->Renderbuffer
->NumSamples
;
935 else if (numSamples
!= att
->Renderbuffer
->NumSamples
) {
936 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
937 fbo_incomplete("inconsistent sample count", -1);
941 /* RENDERBUFFER has fixedSampleLocations implicitly true */
942 if (fixedSampleLocations
< 0)
943 fixedSampleLocations
= GL_TRUE
;
944 else if (fixedSampleLocations
!= GL_TRUE
) {
945 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
946 fbo_incomplete("inconsistent fixed sample locations", -1);
951 assert(att
->Type
== GL_NONE
);
955 /* check if integer color */
956 fb
->_IntegerColor
= _mesa_is_format_integer_color(attFormat
);
958 /* Update _AllColorBuffersFixedPoint and _HasSNormOrFloatColorBuffer. */
960 GLenum type
= _mesa_get_format_datatype(attFormat
);
962 fb
->_AllColorBuffersFixedPoint
=
963 fb
->_AllColorBuffersFixedPoint
&&
964 (type
== GL_UNSIGNED_NORMALIZED
|| type
== GL_SIGNED_NORMALIZED
);
966 fb
->_HasSNormOrFloatColorBuffer
=
967 fb
->_HasSNormOrFloatColorBuffer
||
968 type
== GL_SIGNED_NORMALIZED
|| type
== GL_FLOAT
;
971 /* Error-check width, height, format */
972 if (numImages
== 1) {
979 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
980 /* check that width, height, format are same */
981 if (minWidth
!= maxWidth
|| minHeight
!= maxHeight
) {
982 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
;
983 fbo_incomplete("width or height mismatch", -1);
986 /* check that all color buffers are the same format */
987 if (intFormat
!= GL_NONE
&& f
!= intFormat
) {
988 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
989 fbo_incomplete("format mismatch", -1);
995 /* Check that the format is valid. (MESA_FORMAT_NONE means unsupported)
997 if (att
->Type
== GL_RENDERBUFFER
&&
998 att
->Renderbuffer
->Format
== MESA_FORMAT_NONE
) {
999 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1000 fbo_incomplete("unsupported renderbuffer format", i
);
1004 /* Check that layered rendering is consistent. */
1005 att_layer_count
= att
->Layered
? att
->Renderbuffer
->Depth
: 0;
1006 if (!layer_count_valid
) {
1007 layer_count
= att_layer_count
;
1008 layer_count_valid
= true;
1009 } else if (layer_count
!= att_layer_count
) {
1010 if (layer_count
== 0 || att_layer_count
== 0) {
1011 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1012 fbo_incomplete("framebuffer attachment layer mode is inconsistent", i
);
1014 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_COUNT_ARB
;
1015 fbo_incomplete("framebuffer attachment layer count is inconsistent", i
);
1021 fb
->Layered
= layer_count
> 0;
1023 if (_mesa_is_desktop_gl(ctx
) && !ctx
->Extensions
.ARB_ES2_compatibility
) {
1024 /* Check that all DrawBuffers are present */
1025 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
1026 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
1027 const struct gl_renderbuffer_attachment
*att
1028 = _mesa_get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
]);
1030 if (att
->Type
== GL_NONE
) {
1031 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
1032 fbo_incomplete("missing drawbuffer", j
);
1038 /* Check that the ReadBuffer is present */
1039 if (fb
->ColorReadBuffer
!= GL_NONE
) {
1040 const struct gl_renderbuffer_attachment
*att
1041 = _mesa_get_attachment(ctx
, fb
, fb
->ColorReadBuffer
);
1043 if (att
->Type
== GL_NONE
) {
1044 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
1045 fbo_incomplete("missing readbuffer", -1);
1051 if (numImages
== 0) {
1052 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1053 fbo_incomplete("no attachments", -1);
1057 /* Provisionally set status = COMPLETE ... */
1058 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
1060 /* ... but the driver may say the FB is incomplete.
1061 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
1064 if (ctx
->Driver
.ValidateFramebuffer
) {
1065 ctx
->Driver
.ValidateFramebuffer(ctx
, fb
);
1066 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1067 fbo_incomplete("driver marked FBO as incomplete", -1);
1071 if (fb
->_Status
== GL_FRAMEBUFFER_COMPLETE_EXT
) {
1073 * Note that if ARB_framebuffer_object is supported and the attached
1074 * renderbuffers/textures are different sizes, the framebuffer
1075 * width/height will be set to the smallest width/height.
1077 fb
->Width
= minWidth
;
1078 fb
->Height
= minHeight
;
1080 /* finally, update the visual info for the framebuffer */
1081 _mesa_update_framebuffer_visual(ctx
, fb
);
1086 GLboolean GLAPIENTRY
1087 _mesa_IsRenderbuffer(GLuint renderbuffer
)
1089 GET_CURRENT_CONTEXT(ctx
);
1090 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1092 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1093 if (rb
!= NULL
&& rb
!= &DummyRenderbuffer
)
1101 _mesa_BindRenderbuffer(GLenum target
, GLuint renderbuffer
)
1103 struct gl_renderbuffer
*newRb
;
1104 GET_CURRENT_CONTEXT(ctx
);
1106 if (target
!= GL_RENDERBUFFER_EXT
) {
1107 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindRenderbufferEXT(target)");
1111 /* No need to flush here since the render buffer binding has no
1112 * effect on rendering state.
1116 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1117 if (newRb
== &DummyRenderbuffer
) {
1118 /* ID was reserved, but no real renderbuffer object made yet */
1122 && _mesa_is_desktop_gl(ctx
)
1123 && ctx
->Extensions
.ARB_framebuffer_object
) {
1124 /* All RB IDs must be Gen'd */
1125 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindRenderbuffer(buffer)");
1130 /* create new renderbuffer object */
1131 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
1133 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindRenderbufferEXT");
1136 ASSERT(newRb
->AllocStorage
);
1137 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
1138 newRb
->RefCount
= 1; /* referenced by hash table */
1145 ASSERT(newRb
!= &DummyRenderbuffer
);
1147 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
1152 * If the given renderbuffer is anywhere attached to the framebuffer, detach
1154 * This is used when a renderbuffer object is deleted.
1155 * The spec calls for unbinding.
1158 detach_renderbuffer(struct gl_context
*ctx
,
1159 struct gl_framebuffer
*fb
,
1160 struct gl_renderbuffer
*rb
)
1163 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1164 if (fb
->Attachment
[i
].Renderbuffer
== rb
) {
1165 _mesa_remove_attachment(ctx
, &fb
->Attachment
[i
]);
1168 invalidate_framebuffer(fb
);
1173 _mesa_DeleteRenderbuffers(GLsizei n
, const GLuint
*renderbuffers
)
1176 GET_CURRENT_CONTEXT(ctx
);
1178 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1180 for (i
= 0; i
< n
; i
++) {
1181 if (renderbuffers
[i
] > 0) {
1182 struct gl_renderbuffer
*rb
;
1183 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
1185 /* check if deleting currently bound renderbuffer object */
1186 if (rb
== ctx
->CurrentRenderbuffer
) {
1188 ASSERT(rb
->RefCount
>= 2);
1189 _mesa_BindRenderbuffer(GL_RENDERBUFFER_EXT
, 0);
1192 if (_mesa_is_user_fbo(ctx
->DrawBuffer
)) {
1193 detach_renderbuffer(ctx
, ctx
->DrawBuffer
, rb
);
1195 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)
1196 && ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
1197 detach_renderbuffer(ctx
, ctx
->ReadBuffer
, rb
);
1200 /* Remove from hash table immediately, to free the ID.
1201 * But the object will not be freed until it's no longer
1202 * referenced anywhere else.
1204 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
1206 if (rb
!= &DummyRenderbuffer
) {
1207 /* no longer referenced by hash table */
1208 _mesa_reference_renderbuffer(&rb
, NULL
);
1217 _mesa_GenRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1219 GET_CURRENT_CONTEXT(ctx
);
1224 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenRenderbuffersEXT(n)");
1231 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
1233 for (i
= 0; i
< n
; i
++) {
1234 GLuint name
= first
+ i
;
1235 renderbuffers
[i
] = name
;
1236 /* insert dummy placeholder into hash table */
1237 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1238 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, name
, &DummyRenderbuffer
);
1239 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1245 * Given an internal format token for a render buffer, return the
1246 * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
1247 * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,
1248 * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).
1250 * This is similar to _mesa_base_tex_format() but the set of valid
1251 * internal formats is different.
1253 * Note that even if a format is determined to be legal here, validation
1254 * of the FBO may fail if the format is not supported by the driver/GPU.
1256 * \param internalFormat as passed to glRenderbufferStorage()
1257 * \return the base internal format, or 0 if internalFormat is illegal
1260 _mesa_base_fbo_format(struct gl_context
*ctx
, GLenum internalFormat
)
1263 * Notes: some formats such as alpha, luminance, etc. were added
1264 * with GL_ARB_framebuffer_object.
1266 switch (internalFormat
) {
1272 return ctx
->API
== API_OPENGL_COMPAT
&& ctx
->Extensions
.ARB_framebuffer_object
1277 case GL_LUMINANCE12
:
1278 case GL_LUMINANCE16
:
1279 return ctx
->API
== API_OPENGL_COMPAT
&& ctx
->Extensions
.ARB_framebuffer_object
1281 case GL_LUMINANCE_ALPHA
:
1282 case GL_LUMINANCE4_ALPHA4
:
1283 case GL_LUMINANCE6_ALPHA2
:
1284 case GL_LUMINANCE8_ALPHA8
:
1285 case GL_LUMINANCE12_ALPHA4
:
1286 case GL_LUMINANCE12_ALPHA12
:
1287 case GL_LUMINANCE16_ALPHA16
:
1288 return ctx
->API
== API_OPENGL_COMPAT
&& ctx
->Extensions
.ARB_framebuffer_object
1289 ? GL_LUMINANCE_ALPHA
: 0;
1293 case GL_INTENSITY12
:
1294 case GL_INTENSITY16
:
1295 return ctx
->API
== API_OPENGL_COMPAT
&& ctx
->Extensions
.ARB_framebuffer_object
1306 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
1308 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
1317 return _mesa_is_desktop_gl(ctx
) ? GL_RGBA
: 0;
1319 case GL_SRGB8_ALPHA8_EXT
:
1320 return _mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
1321 case GL_STENCIL_INDEX
:
1322 case GL_STENCIL_INDEX1_EXT
:
1323 case GL_STENCIL_INDEX4_EXT
:
1324 case GL_STENCIL_INDEX16_EXT
:
1325 /* There are extensions for GL_STENCIL_INDEX1 and GL_STENCIL_INDEX4 in
1326 * OpenGL ES, but Mesa does not currently support them.
1328 return _mesa_is_desktop_gl(ctx
) ? GL_STENCIL_INDEX
: 0;
1329 case GL_STENCIL_INDEX8_EXT
:
1330 return GL_STENCIL_INDEX
;
1331 case GL_DEPTH_COMPONENT
:
1332 case GL_DEPTH_COMPONENT32
:
1333 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_COMPONENT
: 0;
1334 case GL_DEPTH_COMPONENT16
:
1335 case GL_DEPTH_COMPONENT24
:
1336 return GL_DEPTH_COMPONENT
;
1337 case GL_DEPTH_STENCIL_EXT
:
1338 return _mesa_is_desktop_gl(ctx
)
1339 && ctx
->Extensions
.EXT_packed_depth_stencil
1340 ? GL_DEPTH_STENCIL_EXT
: 0;
1341 case GL_DEPTH24_STENCIL8_EXT
:
1342 return ctx
->Extensions
.EXT_packed_depth_stencil
1343 ? GL_DEPTH_STENCIL_EXT
: 0;
1344 case GL_DEPTH_COMPONENT32F
:
1345 return ctx
->Version
>= 30
1346 || (ctx
->API
== API_OPENGL_COMPAT
&& ctx
->Extensions
.ARB_depth_buffer_float
)
1347 ? GL_DEPTH_COMPONENT
: 0;
1348 case GL_DEPTH32F_STENCIL8
:
1349 return ctx
->Version
>= 30
1350 || (ctx
->API
== API_OPENGL_COMPAT
&& ctx
->Extensions
.ARB_depth_buffer_float
)
1351 ? GL_DEPTH_STENCIL
: 0;
1354 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_rg
1357 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
1361 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_rg
1364 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
1366 /* signed normalized texture formats */
1370 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1375 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1379 case GL_RGB16_SNORM
:
1380 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1383 case GL_RGBA8_SNORM
:
1384 case GL_RGBA16_SNORM
:
1385 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1387 case GL_ALPHA_SNORM
:
1388 case GL_ALPHA8_SNORM
:
1389 case GL_ALPHA16_SNORM
:
1390 return ctx
->API
== API_OPENGL_COMPAT
&&
1391 ctx
->Extensions
.EXT_texture_snorm
&&
1392 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1395 return ((_mesa_is_desktop_gl(ctx
) &&
1396 ctx
->Extensions
.ARB_texture_rg
&&
1397 ctx
->Extensions
.ARB_texture_float
) ||
1398 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1402 return ((_mesa_is_desktop_gl(ctx
) &&
1403 ctx
->Extensions
.ARB_texture_rg
&&
1404 ctx
->Extensions
.ARB_texture_float
) ||
1405 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1409 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_float
)
1413 return ((_mesa_is_desktop_gl(ctx
) &&
1414 ctx
->Extensions
.ARB_texture_float
) ||
1415 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1417 case GL_ALPHA16F_ARB
:
1418 case GL_ALPHA32F_ARB
:
1419 return ctx
->API
== API_OPENGL_COMPAT
&&
1420 ctx
->Extensions
.ARB_texture_float
&&
1421 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1422 case GL_LUMINANCE16F_ARB
:
1423 case GL_LUMINANCE32F_ARB
:
1424 return ctx
->API
== API_OPENGL_COMPAT
&&
1425 ctx
->Extensions
.ARB_texture_float
&&
1426 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
1427 case GL_LUMINANCE_ALPHA16F_ARB
:
1428 case GL_LUMINANCE_ALPHA32F_ARB
:
1429 return ctx
->API
== API_OPENGL_COMPAT
&&
1430 ctx
->Extensions
.ARB_texture_float
&&
1431 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
1432 case GL_INTENSITY16F_ARB
:
1433 case GL_INTENSITY32F_ARB
:
1434 return ctx
->API
== API_OPENGL_COMPAT
&&
1435 ctx
->Extensions
.ARB_texture_float
&&
1436 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
1438 return (_mesa_is_desktop_gl(ctx
)
1439 && ctx
->Extensions
.EXT_texture_shared_exponent
)
1441 case GL_R11F_G11F_B10F
:
1442 return ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_packed_float
) ||
1443 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1446 case GL_RGBA8UI_EXT
:
1447 case GL_RGBA16UI_EXT
:
1448 case GL_RGBA32UI_EXT
:
1450 case GL_RGBA16I_EXT
:
1451 case GL_RGBA32I_EXT
:
1452 return ctx
->Version
>= 30
1453 || (_mesa_is_desktop_gl(ctx
) &&
1454 ctx
->Extensions
.EXT_texture_integer
) ? GL_RGBA
: 0;
1457 case GL_RGB16UI_EXT
:
1458 case GL_RGB32UI_EXT
:
1462 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_integer
1470 return ctx
->Version
>= 30
1471 || (_mesa_is_desktop_gl(ctx
) &&
1472 ctx
->Extensions
.ARB_texture_rg
&&
1473 ctx
->Extensions
.EXT_texture_integer
) ? GL_RED
: 0;
1481 return ctx
->Version
>= 30
1482 || (_mesa_is_desktop_gl(ctx
) &&
1483 ctx
->Extensions
.ARB_texture_rg
&&
1484 ctx
->Extensions
.EXT_texture_integer
) ? GL_RG
: 0;
1486 case GL_INTENSITY8I_EXT
:
1487 case GL_INTENSITY8UI_EXT
:
1488 case GL_INTENSITY16I_EXT
:
1489 case GL_INTENSITY16UI_EXT
:
1490 case GL_INTENSITY32I_EXT
:
1491 case GL_INTENSITY32UI_EXT
:
1492 return ctx
->API
== API_OPENGL_COMPAT
&&
1493 ctx
->Extensions
.EXT_texture_integer
&&
1494 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
1496 case GL_LUMINANCE8I_EXT
:
1497 case GL_LUMINANCE8UI_EXT
:
1498 case GL_LUMINANCE16I_EXT
:
1499 case GL_LUMINANCE16UI_EXT
:
1500 case GL_LUMINANCE32I_EXT
:
1501 case GL_LUMINANCE32UI_EXT
:
1502 return ctx
->API
== API_OPENGL_COMPAT
&&
1503 ctx
->Extensions
.EXT_texture_integer
&&
1504 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
1506 case GL_LUMINANCE_ALPHA8I_EXT
:
1507 case GL_LUMINANCE_ALPHA8UI_EXT
:
1508 case GL_LUMINANCE_ALPHA16I_EXT
:
1509 case GL_LUMINANCE_ALPHA16UI_EXT
:
1510 case GL_LUMINANCE_ALPHA32I_EXT
:
1511 case GL_LUMINANCE_ALPHA32UI_EXT
:
1512 return ctx
->API
== API_OPENGL_COMPAT
&&
1513 ctx
->Extensions
.EXT_texture_integer
&&
1514 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
1516 case GL_ALPHA8I_EXT
:
1517 case GL_ALPHA8UI_EXT
:
1518 case GL_ALPHA16I_EXT
:
1519 case GL_ALPHA16UI_EXT
:
1520 case GL_ALPHA32I_EXT
:
1521 case GL_ALPHA32UI_EXT
:
1522 return ctx
->API
== API_OPENGL_COMPAT
&&
1523 ctx
->Extensions
.EXT_texture_integer
&&
1524 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1527 return (_mesa_is_desktop_gl(ctx
) &&
1528 ctx
->Extensions
.ARB_texture_rgb10_a2ui
)
1529 || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
1532 return _mesa_is_gles(ctx
) || ctx
->Extensions
.ARB_ES2_compatibility
1541 * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk().
1544 invalidate_rb(GLuint key
, void *data
, void *userData
)
1546 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
1547 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) userData
;
1549 /* If this is a user-created FBO */
1550 if (_mesa_is_user_fbo(fb
)) {
1552 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1553 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
1554 if (att
->Type
== GL_RENDERBUFFER
&&
1555 att
->Renderbuffer
== rb
) {
1556 /* Mark fb status as indeterminate to force re-validation */
1565 /** sentinal value, see below */
1566 #define NO_SAMPLES 1000
1570 * Helper function used by _mesa_RenderbufferStorage() and
1571 * _mesa_RenderbufferStorageMultisample().
1572 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorage().
1575 renderbuffer_storage(GLenum target
, GLenum internalFormat
,
1576 GLsizei width
, GLsizei height
, GLsizei samples
)
1578 const char *func
= samples
== NO_SAMPLES
?
1579 "glRenderbufferStorage" : "glRenderbufferStorageMultisample";
1580 struct gl_renderbuffer
*rb
;
1582 GLenum sample_count_error
;
1583 GET_CURRENT_CONTEXT(ctx
);
1585 if (MESA_VERBOSE
& VERBOSE_API
) {
1586 if (samples
== NO_SAMPLES
)
1587 _mesa_debug(ctx
, "%s(%s, %s, %d, %d)\n",
1589 _mesa_lookup_enum_by_nr(target
),
1590 _mesa_lookup_enum_by_nr(internalFormat
),
1593 _mesa_debug(ctx
, "%s(%s, %s, %d, %d, %d)\n",
1595 _mesa_lookup_enum_by_nr(target
),
1596 _mesa_lookup_enum_by_nr(internalFormat
),
1597 width
, height
, samples
);
1600 if (target
!= GL_RENDERBUFFER_EXT
) {
1601 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
1605 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
1606 if (baseFormat
== 0) {
1607 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalFormat=%s)",
1608 func
, _mesa_lookup_enum_by_nr(internalFormat
));
1612 if (width
< 0 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
1613 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(width)", func
);
1617 if (height
< 0 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
1618 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(height)", func
);
1622 if (samples
== NO_SAMPLES
) {
1623 /* NumSamples == 0 indicates non-multisampling */
1627 /* check the sample count;
1628 * note: driver may choose to use more samples than what's requested
1630 sample_count_error
= _mesa_check_sample_count(ctx
, target
,
1631 internalFormat
, samples
);
1632 if (sample_count_error
!= GL_NO_ERROR
) {
1633 _mesa_error(ctx
, sample_count_error
, "%s(samples)", func
);
1638 rb
= ctx
->CurrentRenderbuffer
;
1640 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", func
);
1644 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1646 if (rb
->InternalFormat
== internalFormat
&&
1647 rb
->Width
== (GLuint
) width
&&
1648 rb
->Height
== (GLuint
) height
&&
1649 rb
->NumSamples
== samples
) {
1650 /* no change in allocation needed */
1654 /* These MUST get set by the AllocStorage func */
1655 rb
->Format
= MESA_FORMAT_NONE
;
1656 rb
->NumSamples
= samples
;
1658 /* Now allocate the storage */
1659 ASSERT(rb
->AllocStorage
);
1660 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
1661 /* No error - check/set fields now */
1662 /* If rb->Format == MESA_FORMAT_NONE, the format is unsupported. */
1663 assert(rb
->Width
== (GLuint
) width
);
1664 assert(rb
->Height
== (GLuint
) height
);
1665 rb
->InternalFormat
= internalFormat
;
1666 rb
->_BaseFormat
= baseFormat
;
1667 assert(rb
->_BaseFormat
!= 0);
1670 /* Probably ran out of memory - clear the fields */
1673 rb
->Format
= MESA_FORMAT_NONE
;
1674 rb
->InternalFormat
= GL_NONE
;
1675 rb
->_BaseFormat
= GL_NONE
;
1679 /* Invalidate the framebuffers the renderbuffer is attached in. */
1680 if (rb
->AttachedAnytime
) {
1681 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, invalidate_rb
, rb
);
1687 _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target
, GLeglImageOES image
)
1689 struct gl_renderbuffer
*rb
;
1690 GET_CURRENT_CONTEXT(ctx
);
1692 if (!ctx
->Extensions
.OES_EGL_image
) {
1693 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1694 "glEGLImageTargetRenderbufferStorageOES(unsupported)");
1698 if (target
!= GL_RENDERBUFFER
) {
1699 _mesa_error(ctx
, GL_INVALID_ENUM
,
1700 "EGLImageTargetRenderbufferStorageOES");
1704 rb
= ctx
->CurrentRenderbuffer
;
1706 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1707 "EGLImageTargetRenderbufferStorageOES");
1711 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1713 ctx
->Driver
.EGLImageTargetRenderbufferStorage(ctx
, rb
, image
);
1718 * Helper function for _mesa_GetRenderbufferParameteriv() and
1719 * _mesa_GetFramebufferAttachmentParameteriv()
1720 * We have to be careful to respect the base format. For example, if a
1721 * renderbuffer/texture was created with internalFormat=GL_RGB but the
1722 * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
1723 * we need to return zero.
1726 get_component_bits(GLenum pname
, GLenum baseFormat
, gl_format format
)
1728 if (_mesa_base_format_has_channel(baseFormat
, pname
))
1729 return _mesa_get_format_bits(format
, pname
);
1737 _mesa_RenderbufferStorage(GLenum target
, GLenum internalFormat
,
1738 GLsizei width
, GLsizei height
)
1740 /* GL_ARB_fbo says calling this function is equivalent to calling
1741 * glRenderbufferStorageMultisample() with samples=0. We pass in
1742 * a token value here just for error reporting purposes.
1744 renderbuffer_storage(target
, internalFormat
, width
, height
, NO_SAMPLES
);
1749 _mesa_RenderbufferStorageMultisample(GLenum target
, GLsizei samples
,
1750 GLenum internalFormat
,
1751 GLsizei width
, GLsizei height
)
1753 renderbuffer_storage(target
, internalFormat
, width
, height
, samples
);
1758 * OpenGL ES version of glRenderBufferStorage.
1761 _es_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
1762 GLsizei width
, GLsizei height
)
1764 switch (internalFormat
) {
1766 /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
1767 /* choose a closest format */
1768 internalFormat
= GL_RGB5
;
1774 renderbuffer_storage(target
, internalFormat
, width
, height
, 0);
1779 _mesa_GetRenderbufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
1781 struct gl_renderbuffer
*rb
;
1782 GET_CURRENT_CONTEXT(ctx
);
1784 if (target
!= GL_RENDERBUFFER_EXT
) {
1785 _mesa_error(ctx
, GL_INVALID_ENUM
,
1786 "glGetRenderbufferParameterivEXT(target)");
1790 rb
= ctx
->CurrentRenderbuffer
;
1792 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1793 "glGetRenderbufferParameterivEXT");
1797 /* No need to flush here since we're just quering state which is
1798 * not effected by rendering.
1802 case GL_RENDERBUFFER_WIDTH_EXT
:
1803 *params
= rb
->Width
;
1805 case GL_RENDERBUFFER_HEIGHT_EXT
:
1806 *params
= rb
->Height
;
1808 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
1809 *params
= rb
->InternalFormat
;
1811 case GL_RENDERBUFFER_RED_SIZE_EXT
:
1812 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
1813 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
1814 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
1815 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
1816 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
1817 *params
= get_component_bits(pname
, rb
->_BaseFormat
, rb
->Format
);
1819 case GL_RENDERBUFFER_SAMPLES
:
1820 if ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_framebuffer_object
)
1821 || _mesa_is_gles3(ctx
)) {
1822 *params
= rb
->NumSamples
;
1827 _mesa_error(ctx
, GL_INVALID_ENUM
,
1828 "glGetRenderbufferParameterivEXT(target)");
1834 GLboolean GLAPIENTRY
1835 _mesa_IsFramebuffer(GLuint framebuffer
)
1837 GET_CURRENT_CONTEXT(ctx
);
1838 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1840 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
1841 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
1849 * Check if any of the attachments of the given framebuffer are textures
1850 * (render to texture). Call ctx->Driver.RenderTexture() for such
1854 check_begin_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
1857 ASSERT(ctx
->Driver
.RenderTexture
);
1859 if (_mesa_is_winsys_fbo(fb
))
1860 return; /* can't render to texture with winsys framebuffers */
1862 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1863 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
1864 if (att
->Texture
&& att
->Renderbuffer
->TexImage
) {
1865 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
1872 * Examine all the framebuffer's attachments to see if any are textures.
1873 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
1874 * notify the device driver that the texture image may have changed.
1877 check_end_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
1879 if (_mesa_is_winsys_fbo(fb
))
1880 return; /* can't render to texture with winsys framebuffers */
1882 if (ctx
->Driver
.FinishRenderTexture
) {
1884 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1885 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
1886 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
1887 if (rb
&& rb
->NeedsFinishRenderTexture
) {
1888 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
1896 _mesa_BindFramebuffer(GLenum target
, GLuint framebuffer
)
1898 struct gl_framebuffer
*newDrawFb
, *newReadFb
;
1899 struct gl_framebuffer
*oldDrawFb
, *oldReadFb
;
1900 GLboolean bindReadBuf
, bindDrawBuf
;
1901 GET_CURRENT_CONTEXT(ctx
);
1904 if (ctx
->Extensions
.ARB_framebuffer_object
) {
1905 ASSERT(ctx
->Extensions
.EXT_framebuffer_object
);
1906 ASSERT(ctx
->Extensions
.EXT_framebuffer_blit
);
1910 if (!ctx
->Extensions
.EXT_framebuffer_object
) {
1911 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1912 "glBindFramebufferEXT(unsupported)");
1917 case GL_DRAW_FRAMEBUFFER_EXT
:
1918 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1919 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
1922 bindDrawBuf
= GL_TRUE
;
1923 bindReadBuf
= GL_FALSE
;
1925 case GL_READ_FRAMEBUFFER_EXT
:
1926 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1927 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
1930 bindDrawBuf
= GL_FALSE
;
1931 bindReadBuf
= GL_TRUE
;
1933 case GL_FRAMEBUFFER_EXT
:
1934 bindDrawBuf
= GL_TRUE
;
1935 bindReadBuf
= GL_TRUE
;
1938 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
1943 /* Binding a user-created framebuffer object */
1944 newDrawFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
1945 if (newDrawFb
== &DummyFramebuffer
) {
1946 /* ID was reserved, but no real framebuffer object made yet */
1950 && _mesa_is_desktop_gl(ctx
)
1951 && ctx
->Extensions
.ARB_framebuffer_object
) {
1952 /* All FBO IDs must be Gen'd */
1953 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindFramebuffer(buffer)");
1958 /* create new framebuffer object */
1959 newDrawFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
1961 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
1964 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newDrawFb
);
1966 newReadFb
= newDrawFb
;
1969 /* Binding the window system framebuffer (which was originally set
1970 * with MakeCurrent).
1972 newDrawFb
= ctx
->WinSysDrawBuffer
;
1973 newReadFb
= ctx
->WinSysReadBuffer
;
1977 ASSERT(newDrawFb
!= &DummyFramebuffer
);
1979 /* save pointers to current/old framebuffers */
1980 oldDrawFb
= ctx
->DrawBuffer
;
1981 oldReadFb
= ctx
->ReadBuffer
;
1983 /* check if really changing bindings */
1984 if (oldDrawFb
== newDrawFb
)
1985 bindDrawBuf
= GL_FALSE
;
1986 if (oldReadFb
== newReadFb
)
1987 bindReadBuf
= GL_FALSE
;
1990 * OK, now bind the new Draw/Read framebuffers, if they're changing.
1992 * We also check if we're beginning and/or ending render-to-texture.
1993 * When a framebuffer with texture attachments is unbound, call
1994 * ctx->Driver.FinishRenderTexture().
1995 * When a framebuffer with texture attachments is bound, call
1996 * ctx->Driver.RenderTexture().
1998 * Note that if the ReadBuffer has texture attachments we don't consider
1999 * that a render-to-texture case.
2002 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2004 /* check if old readbuffer was render-to-texture */
2005 check_end_texture_render(ctx
, oldReadFb
);
2007 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newReadFb
);
2011 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2013 /* check if old framebuffer had any texture attachments */
2015 check_end_texture_render(ctx
, oldDrawFb
);
2017 /* check if newly bound framebuffer has any texture attachments */
2018 check_begin_texture_render(ctx
, newDrawFb
);
2020 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newDrawFb
);
2023 if ((bindDrawBuf
|| bindReadBuf
) && ctx
->Driver
.BindFramebuffer
) {
2024 ctx
->Driver
.BindFramebuffer(ctx
, target
, newDrawFb
, newReadFb
);
2030 _mesa_DeleteFramebuffers(GLsizei n
, const GLuint
*framebuffers
)
2033 GET_CURRENT_CONTEXT(ctx
);
2035 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2037 for (i
= 0; i
< n
; i
++) {
2038 if (framebuffers
[i
] > 0) {
2039 struct gl_framebuffer
*fb
;
2040 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
2042 ASSERT(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
2044 /* check if deleting currently bound framebuffer object */
2045 if (ctx
->Extensions
.EXT_framebuffer_blit
) {
2046 /* separate draw/read binding points */
2047 if (fb
== ctx
->DrawBuffer
) {
2049 ASSERT(fb
->RefCount
>= 2);
2050 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER_EXT
, 0);
2052 if (fb
== ctx
->ReadBuffer
) {
2054 ASSERT(fb
->RefCount
>= 2);
2055 _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER_EXT
, 0);
2059 /* only one binding point for read/draw buffers */
2060 if (fb
== ctx
->DrawBuffer
|| fb
== ctx
->ReadBuffer
) {
2062 ASSERT(fb
->RefCount
>= 2);
2063 _mesa_BindFramebuffer(GL_FRAMEBUFFER_EXT
, 0);
2067 /* remove from hash table immediately, to free the ID */
2068 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
2070 if (fb
!= &DummyFramebuffer
) {
2071 /* But the object will not be freed until it's no longer
2072 * bound in any context.
2074 _mesa_reference_framebuffer(&fb
, NULL
);
2083 _mesa_GenFramebuffers(GLsizei n
, GLuint
*framebuffers
)
2085 GET_CURRENT_CONTEXT(ctx
);
2090 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenFramebuffersEXT(n)");
2097 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
2099 for (i
= 0; i
< n
; i
++) {
2100 GLuint name
= first
+ i
;
2101 framebuffers
[i
] = name
;
2102 /* insert dummy placeholder into hash table */
2103 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
2104 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, name
, &DummyFramebuffer
);
2105 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
2112 _mesa_CheckFramebufferStatus(GLenum target
)
2114 struct gl_framebuffer
*buffer
;
2115 GET_CURRENT_CONTEXT(ctx
);
2117 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
2119 if (MESA_VERBOSE
& VERBOSE_API
)
2120 _mesa_debug(ctx
, "glCheckFramebufferStatus(%s)\n",
2121 _mesa_lookup_enum_by_nr(target
));
2123 buffer
= get_framebuffer_target(ctx
, target
);
2125 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
2129 if (_mesa_is_winsys_fbo(buffer
)) {
2130 /* The window system / default framebuffer is always complete */
2131 return GL_FRAMEBUFFER_COMPLETE_EXT
;
2134 /* No need to flush here */
2136 if (buffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE
) {
2137 _mesa_test_framebuffer_completeness(ctx
, buffer
);
2140 return buffer
->_Status
;
2145 * Replicate the src attachment point. Used by framebuffer_texture() when
2146 * the same texture is attached at GL_DEPTH_ATTACHMENT and
2147 * GL_STENCIL_ATTACHMENT.
2150 reuse_framebuffer_texture_attachment(struct gl_framebuffer
*fb
,
2151 gl_buffer_index dst
,
2152 gl_buffer_index src
)
2154 struct gl_renderbuffer_attachment
*dst_att
= &fb
->Attachment
[dst
];
2155 struct gl_renderbuffer_attachment
*src_att
= &fb
->Attachment
[src
];
2157 assert(src_att
->Texture
!= NULL
);
2158 assert(src_att
->Renderbuffer
!= NULL
);
2160 _mesa_reference_texobj(&dst_att
->Texture
, src_att
->Texture
);
2161 _mesa_reference_renderbuffer(&dst_att
->Renderbuffer
, src_att
->Renderbuffer
);
2162 dst_att
->Type
= src_att
->Type
;
2163 dst_att
->Complete
= src_att
->Complete
;
2164 dst_att
->TextureLevel
= src_att
->TextureLevel
;
2165 dst_att
->Zoffset
= src_att
->Zoffset
;
2170 * Common code called by glFramebufferTexture1D/2D/3DEXT() and
2171 * glFramebufferTextureLayerEXT().
2172 * Note: glFramebufferTextureLayerEXT() has no textarget parameter so we'll
2173 * get textarget=0 in that case.
2176 framebuffer_texture(struct gl_context
*ctx
, const char *caller
, GLenum target
,
2177 GLenum attachment
, GLenum textarget
, GLuint texture
,
2178 GLint level
, GLint zoffset
, GLboolean layered
)
2180 struct gl_renderbuffer_attachment
*att
;
2181 struct gl_texture_object
*texObj
= NULL
;
2182 struct gl_framebuffer
*fb
;
2183 GLenum maxLevelsTarget
;
2185 fb
= get_framebuffer_target(ctx
, target
);
2187 _mesa_error(ctx
, GL_INVALID_ENUM
,
2188 "glFramebufferTexture%sEXT(target=0x%x)", caller
, target
);
2192 /* check framebuffer binding */
2193 if (_mesa_is_winsys_fbo(fb
)) {
2194 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2195 "glFramebufferTexture%sEXT", caller
);
2199 /* The textarget, level, and zoffset parameters are only validated if
2200 * texture is non-zero.
2203 GLboolean err
= GL_TRUE
;
2205 texObj
= _mesa_lookup_texture(ctx
, texture
);
2206 if (texObj
!= NULL
) {
2207 if (textarget
== 0) {
2208 /* If textarget == 0 it means we're being called by
2209 * glFramebufferTextureLayer() and textarget is not used.
2210 * The only legal texture types for that function are 3D and
2211 * 1D/2D arrays textures.
2213 err
= (texObj
->Target
!= GL_TEXTURE_3D
) &&
2214 (texObj
->Target
!= GL_TEXTURE_1D_ARRAY_EXT
) &&
2215 (texObj
->Target
!= GL_TEXTURE_2D_ARRAY_EXT
) &&
2216 (texObj
->Target
!= GL_TEXTURE_CUBE_MAP_ARRAY
) &&
2217 (texObj
->Target
!= GL_TEXTURE_2D_MULTISAMPLE_ARRAY
);
2220 /* Make sure textarget is consistent with the texture's type */
2221 err
= (texObj
->Target
== GL_TEXTURE_CUBE_MAP
)
2222 ? !_mesa_is_cube_face(textarget
)
2223 : (texObj
->Target
!= textarget
);
2227 /* can't render to a non-existant texture */
2228 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2229 "glFramebufferTexture%sEXT(non existant texture)",
2235 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2236 "glFramebufferTexture%sEXT(texture target mismatch)",
2241 if (texObj
->Target
== GL_TEXTURE_3D
) {
2242 const GLint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
2243 if (zoffset
< 0 || zoffset
>= maxSize
) {
2244 _mesa_error(ctx
, GL_INVALID_VALUE
,
2245 "glFramebufferTexture%sEXT(zoffset)", caller
);
2249 else if ((texObj
->Target
== GL_TEXTURE_1D_ARRAY_EXT
) ||
2250 (texObj
->Target
== GL_TEXTURE_2D_ARRAY_EXT
) ||
2251 (texObj
->Target
== GL_TEXTURE_CUBE_MAP_ARRAY
) ||
2252 (texObj
->Target
== GL_TEXTURE_2D_MULTISAMPLE_ARRAY
)) {
2254 zoffset
>= (GLint
) ctx
->Const
.MaxArrayTextureLayers
) {
2255 _mesa_error(ctx
, GL_INVALID_VALUE
,
2256 "glFramebufferTexture%sEXT(layer)", caller
);
2261 maxLevelsTarget
= textarget
? textarget
: texObj
->Target
;
2263 (level
>= _mesa_max_texture_levels(ctx
, maxLevelsTarget
))) {
2264 _mesa_error(ctx
, GL_INVALID_VALUE
,
2265 "glFramebufferTexture%sEXT(level)", caller
);
2270 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
2272 _mesa_error(ctx
, GL_INVALID_ENUM
,
2273 "glFramebufferTexture%sEXT(attachment)", caller
);
2277 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2279 _glthread_LOCK_MUTEX(fb
->Mutex
);
2281 if (attachment
== GL_DEPTH_ATTACHMENT
&&
2282 texObj
== fb
->Attachment
[BUFFER_STENCIL
].Texture
&&
2283 level
== fb
->Attachment
[BUFFER_STENCIL
].TextureLevel
&&
2284 _mesa_tex_target_to_face(textarget
) ==
2285 fb
->Attachment
[BUFFER_STENCIL
].CubeMapFace
&&
2286 zoffset
== fb
->Attachment
[BUFFER_STENCIL
].Zoffset
) {
2287 /* The texture object is already attached to the stencil attachment
2288 * point. Don't create a new renderbuffer; just reuse the stencil
2289 * attachment's. This is required to prevent a GL error in
2290 * glGetFramebufferAttachmentParameteriv(GL_DEPTH_STENCIL).
2292 reuse_framebuffer_texture_attachment(fb
, BUFFER_DEPTH
,
2294 } else if (attachment
== GL_STENCIL_ATTACHMENT
&&
2295 texObj
== fb
->Attachment
[BUFFER_DEPTH
].Texture
&&
2296 level
== fb
->Attachment
[BUFFER_DEPTH
].TextureLevel
&&
2297 _mesa_tex_target_to_face(textarget
) ==
2298 fb
->Attachment
[BUFFER_DEPTH
].CubeMapFace
&&
2299 zoffset
== fb
->Attachment
[BUFFER_DEPTH
].Zoffset
) {
2300 /* As above, but with depth and stencil transposed. */
2301 reuse_framebuffer_texture_attachment(fb
, BUFFER_STENCIL
,
2304 _mesa_set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
2305 level
, zoffset
, layered
);
2306 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
2307 /* Above we created a new renderbuffer and attached it to the
2308 * depth attachment point. Now attach it to the stencil attachment
2311 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
2312 reuse_framebuffer_texture_attachment(fb
,BUFFER_STENCIL
,
2317 /* Set the render-to-texture flag. We'll check this flag in
2318 * glTexImage() and friends to determine if we need to revalidate
2319 * any FBOs that might be rendering into this texture.
2320 * This flag never gets cleared since it's non-trivial to determine
2321 * when all FBOs might be done rendering to this texture. That's OK
2322 * though since it's uncommon to render to a texture then repeatedly
2323 * call glTexImage() to change images in the texture.
2325 texObj
->_RenderToTexture
= GL_TRUE
;
2328 _mesa_remove_attachment(ctx
, att
);
2329 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
2330 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
2331 _mesa_remove_attachment(ctx
, &fb
->Attachment
[BUFFER_STENCIL
]);
2335 invalidate_framebuffer(fb
);
2337 _glthread_UNLOCK_MUTEX(fb
->Mutex
);
2343 _mesa_FramebufferTexture1D(GLenum target
, GLenum attachment
,
2344 GLenum textarget
, GLuint texture
, GLint level
)
2346 GET_CURRENT_CONTEXT(ctx
);
2351 switch (textarget
) {
2355 case GL_TEXTURE_1D_ARRAY
:
2356 error
= !ctx
->Extensions
.EXT_texture_array
;
2363 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2364 "glFramebufferTexture1DEXT(textarget=%s)",
2365 _mesa_lookup_enum_by_nr(textarget
));
2370 framebuffer_texture(ctx
, "1D", target
, attachment
, textarget
, texture
,
2371 level
, 0, GL_FALSE
);
2376 _mesa_FramebufferTexture2D(GLenum target
, GLenum attachment
,
2377 GLenum textarget
, GLuint texture
, GLint level
)
2379 GET_CURRENT_CONTEXT(ctx
);
2384 switch (textarget
) {
2388 case GL_TEXTURE_RECTANGLE
:
2389 error
= _mesa_is_gles(ctx
)
2390 || !ctx
->Extensions
.NV_texture_rectangle
;
2392 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
2393 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
2394 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
2395 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
2396 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
2397 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
2398 error
= !ctx
->Extensions
.ARB_texture_cube_map
;
2400 case GL_TEXTURE_2D_ARRAY
:
2401 error
= (_mesa_is_gles(ctx
) && ctx
->Version
< 30)
2402 || !ctx
->Extensions
.EXT_texture_array
;
2404 case GL_TEXTURE_2D_MULTISAMPLE
:
2405 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
2406 error
= _mesa_is_gles(ctx
)
2407 || !ctx
->Extensions
.ARB_texture_multisample
;
2414 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2415 "glFramebufferTexture2DEXT(textarget=%s)",
2416 _mesa_lookup_enum_by_nr(textarget
));
2421 framebuffer_texture(ctx
, "2D", target
, attachment
, textarget
, texture
,
2422 level
, 0, GL_FALSE
);
2427 _mesa_FramebufferTexture3D(GLenum target
, GLenum attachment
,
2428 GLenum textarget
, GLuint texture
,
2429 GLint level
, GLint zoffset
)
2431 GET_CURRENT_CONTEXT(ctx
);
2433 if ((texture
!= 0) && (textarget
!= GL_TEXTURE_3D
)) {
2434 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2435 "glFramebufferTexture3DEXT(textarget)");
2439 framebuffer_texture(ctx
, "3D", target
, attachment
, textarget
, texture
,
2440 level
, zoffset
, GL_FALSE
);
2445 _mesa_FramebufferTextureLayer(GLenum target
, GLenum attachment
,
2446 GLuint texture
, GLint level
, GLint layer
)
2448 GET_CURRENT_CONTEXT(ctx
);
2450 framebuffer_texture(ctx
, "Layer", target
, attachment
, 0, texture
,
2451 level
, layer
, GL_FALSE
);
2456 _mesa_FramebufferTexture(GLenum target
, GLenum attachment
,
2457 GLuint texture
, GLint level
)
2459 GET_CURRENT_CONTEXT(ctx
);
2461 if (ctx
->Version
>= 32 || ctx
->Extensions
.ARB_geometry_shader4
) {
2462 framebuffer_texture(ctx
, "Layer", target
, attachment
, 0, texture
,
2465 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2466 "unsupported function (glFramebufferTexture) called");
2472 _mesa_FramebufferRenderbuffer(GLenum target
, GLenum attachment
,
2473 GLenum renderbufferTarget
,
2474 GLuint renderbuffer
)
2476 struct gl_renderbuffer_attachment
*att
;
2477 struct gl_framebuffer
*fb
;
2478 struct gl_renderbuffer
*rb
;
2479 GET_CURRENT_CONTEXT(ctx
);
2481 fb
= get_framebuffer_target(ctx
, target
);
2483 _mesa_error(ctx
, GL_INVALID_ENUM
, "glFramebufferRenderbufferEXT(target)");
2487 if (renderbufferTarget
!= GL_RENDERBUFFER_EXT
) {
2488 _mesa_error(ctx
, GL_INVALID_ENUM
,
2489 "glFramebufferRenderbufferEXT(renderbufferTarget)");
2493 if (_mesa_is_winsys_fbo(fb
)) {
2494 /* Can't attach new renderbuffers to a window system framebuffer */
2495 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glFramebufferRenderbufferEXT");
2499 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
2501 _mesa_error(ctx
, GL_INVALID_ENUM
,
2502 "glFramebufferRenderbufferEXT(invalid attachment %s)",
2503 _mesa_lookup_enum_by_nr(attachment
));
2508 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2510 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2511 "glFramebufferRenderbufferEXT(non-existant"
2512 " renderbuffer %u)", renderbuffer
);
2515 else if (rb
== &DummyRenderbuffer
) {
2516 /* This is what NVIDIA does */
2517 _mesa_error(ctx
, GL_INVALID_VALUE
,
2518 "glFramebufferRenderbufferEXT(renderbuffer %u)",
2524 /* remove renderbuffer attachment */
2528 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
&&
2529 rb
&& rb
->Format
!= MESA_FORMAT_NONE
) {
2530 /* make sure the renderbuffer is a depth/stencil format */
2531 const GLenum baseFormat
= _mesa_get_format_base_format(rb
->Format
);
2532 if (baseFormat
!= GL_DEPTH_STENCIL
) {
2533 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2534 "glFramebufferRenderbufferEXT(renderbuffer"
2535 " is not DEPTH_STENCIL format)");
2541 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2543 assert(ctx
->Driver
.FramebufferRenderbuffer
);
2544 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
2546 /* Some subsequent GL commands may depend on the framebuffer's visual
2547 * after the binding is updated. Update visual info now.
2549 _mesa_update_framebuffer_visual(ctx
, fb
);
2554 _mesa_GetFramebufferAttachmentParameteriv(GLenum target
, GLenum attachment
,
2555 GLenum pname
, GLint
*params
)
2557 const struct gl_renderbuffer_attachment
*att
;
2558 struct gl_framebuffer
*buffer
;
2560 GET_CURRENT_CONTEXT(ctx
);
2562 /* The error differs in GL and GLES. */
2563 err
= _mesa_is_desktop_gl(ctx
) ? GL_INVALID_OPERATION
: GL_INVALID_ENUM
;
2565 buffer
= get_framebuffer_target(ctx
, target
);
2567 _mesa_error(ctx
, GL_INVALID_ENUM
,
2568 "glGetFramebufferAttachmentParameterivEXT(target)");
2572 if (_mesa_is_winsys_fbo(buffer
)) {
2573 /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
2576 * "If the framebuffer currently bound to target is zero, then
2577 * INVALID_OPERATION is generated."
2579 * The EXT_framebuffer_object spec has the same wording, and the
2580 * OES_framebuffer_object spec refers to the EXT_framebuffer_object
2583 if ((!_mesa_is_desktop_gl(ctx
) || !ctx
->Extensions
.ARB_framebuffer_object
)
2584 && !_mesa_is_gles3(ctx
)) {
2585 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2586 "glGetFramebufferAttachmentParameteriv(bound FBO = 0)");
2590 if (_mesa_is_gles3(ctx
) && attachment
!= GL_BACK
&&
2591 attachment
!= GL_DEPTH
&& attachment
!= GL_STENCIL
) {
2592 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2593 "glGetFramebufferAttachmentParameteriv(attachment)");
2596 /* the default / window-system FBO */
2597 att
= _mesa_get_fb0_attachment(ctx
, buffer
, attachment
);
2600 /* user-created framebuffer FBO */
2601 att
= _mesa_get_attachment(ctx
, buffer
, attachment
);
2605 _mesa_error(ctx
, GL_INVALID_ENUM
,
2606 "glGetFramebufferAttachmentParameterivEXT(attachment)");
2610 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
2611 /* the depth and stencil attachments must point to the same buffer */
2612 const struct gl_renderbuffer_attachment
*depthAtt
, *stencilAtt
;
2613 depthAtt
= _mesa_get_attachment(ctx
, buffer
, GL_DEPTH_ATTACHMENT
);
2614 stencilAtt
= _mesa_get_attachment(ctx
, buffer
, GL_STENCIL_ATTACHMENT
);
2615 if (depthAtt
->Renderbuffer
!= stencilAtt
->Renderbuffer
) {
2616 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2617 "glGetFramebufferAttachmentParameterivEXT(DEPTH/STENCIL"
2618 " attachments differ)");
2623 /* No need to flush here */
2626 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
2627 *params
= _mesa_is_winsys_fbo(buffer
)
2628 ? GL_FRAMEBUFFER_DEFAULT
: att
->Type
;
2630 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
2631 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
2632 *params
= att
->Renderbuffer
->Name
;
2634 else if (att
->Type
== GL_TEXTURE
) {
2635 *params
= att
->Texture
->Name
;
2638 assert(att
->Type
== GL_NONE
);
2639 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
2642 goto invalid_pname_enum
;
2646 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
2647 if (att
->Type
== GL_TEXTURE
) {
2648 *params
= att
->TextureLevel
;
2650 else if (att
->Type
== GL_NONE
) {
2651 _mesa_error(ctx
, err
,
2652 "glGetFramebufferAttachmentParameterivEXT(pname)");
2655 goto invalid_pname_enum
;
2658 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
2659 if (att
->Type
== GL_TEXTURE
) {
2660 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
2661 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
2667 else if (att
->Type
== GL_NONE
) {
2668 _mesa_error(ctx
, err
,
2669 "glGetFramebufferAttachmentParameterivEXT(pname)");
2672 goto invalid_pname_enum
;
2675 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
2676 if (ctx
->API
== API_OPENGLES
) {
2677 goto invalid_pname_enum
;
2678 } else if (att
->Type
== GL_NONE
) {
2679 _mesa_error(ctx
, err
,
2680 "glGetFramebufferAttachmentParameterivEXT(pname)");
2681 } else if (att
->Type
== GL_TEXTURE
) {
2682 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_3D
) {
2683 *params
= att
->Zoffset
;
2690 goto invalid_pname_enum
;
2693 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
:
2694 if ((!_mesa_is_desktop_gl(ctx
) || !ctx
->Extensions
.ARB_framebuffer_object
)
2695 && !_mesa_is_gles3(ctx
)) {
2696 goto invalid_pname_enum
;
2698 else if (att
->Type
== GL_NONE
) {
2699 _mesa_error(ctx
, err
,
2700 "glGetFramebufferAttachmentParameterivEXT(pname)");
2703 if (ctx
->Extensions
.EXT_framebuffer_sRGB
) {
2704 *params
= _mesa_get_format_color_encoding(att
->Renderbuffer
->Format
);
2707 /* According to ARB_framebuffer_sRGB, we should return LINEAR
2708 * if the sRGB conversion is unsupported. */
2709 *params
= GL_LINEAR
;
2713 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
:
2714 if ((ctx
->API
!= API_OPENGL_COMPAT
|| !ctx
->Extensions
.ARB_framebuffer_object
)
2715 && ctx
->API
!= API_OPENGL_CORE
2716 && !_mesa_is_gles3(ctx
)) {
2717 goto invalid_pname_enum
;
2719 else if (att
->Type
== GL_NONE
) {
2720 _mesa_error(ctx
, err
,
2721 "glGetFramebufferAttachmentParameterivEXT(pname)");
2724 gl_format format
= att
->Renderbuffer
->Format
;
2726 /* Page 235 (page 247 of the PDF) in section 6.1.13 of the OpenGL ES
2729 * "If pname is FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE.... If
2730 * attachment is DEPTH_STENCIL_ATTACHMENT the query will fail and
2731 * generate an INVALID_OPERATION error.
2733 if (_mesa_is_gles3(ctx
) && attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
2734 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2735 "glGetFramebufferAttachmentParameteriv(cannot query "
2736 "GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE of "
2737 "GL_DEPTH_STENCIL_ATTACHMENT");
2741 if (format
== MESA_FORMAT_S8
) {
2745 else if (format
== MESA_FORMAT_Z32_FLOAT_X24S8
) {
2746 /* depends on the attachment parameter */
2747 if (attachment
== GL_STENCIL_ATTACHMENT
) {
2755 *params
= _mesa_get_format_datatype(format
);
2759 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
2760 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
2761 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
2762 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
2763 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
2764 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
2765 if ((!_mesa_is_desktop_gl(ctx
) || !ctx
->Extensions
.ARB_framebuffer_object
)
2766 && !_mesa_is_gles3(ctx
)) {
2767 goto invalid_pname_enum
;
2769 else if (att
->Type
== GL_NONE
) {
2770 _mesa_error(ctx
, err
,
2771 "glGetFramebufferAttachmentParameterivEXT(pname)");
2773 else if (att
->Texture
) {
2774 const struct gl_texture_image
*texImage
=
2775 _mesa_select_tex_image(ctx
, att
->Texture
, att
->Texture
->Target
,
2778 *params
= get_component_bits(pname
, texImage
->_BaseFormat
,
2779 texImage
->TexFormat
);
2785 else if (att
->Renderbuffer
) {
2786 *params
= get_component_bits(pname
, att
->Renderbuffer
->_BaseFormat
,
2787 att
->Renderbuffer
->Format
);
2790 _mesa_problem(ctx
, "glGetFramebufferAttachmentParameterivEXT:"
2791 " invalid FBO attachment structure");
2795 goto invalid_pname_enum
;
2801 _mesa_error(ctx
, GL_INVALID_ENUM
,
2802 "glGetFramebufferAttachmentParameteriv(pname)");
2808 _mesa_GenerateMipmap(GLenum target
)
2810 struct gl_texture_image
*srcImage
;
2811 struct gl_texture_object
*texObj
;
2814 GET_CURRENT_CONTEXT(ctx
);
2816 FLUSH_VERTICES(ctx
, 0);
2820 error
= _mesa_is_gles(ctx
);
2826 error
= ctx
->API
== API_OPENGLES
;
2828 case GL_TEXTURE_CUBE_MAP
:
2829 error
= !ctx
->Extensions
.ARB_texture_cube_map
;
2831 case GL_TEXTURE_1D_ARRAY
:
2832 error
= _mesa_is_gles(ctx
) || !ctx
->Extensions
.EXT_texture_array
;
2834 case GL_TEXTURE_2D_ARRAY
:
2835 error
= (_mesa_is_gles(ctx
) && ctx
->Version
< 30)
2836 || !ctx
->Extensions
.EXT_texture_array
;
2843 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGenerateMipmapEXT(target=%s)",
2844 _mesa_lookup_enum_by_nr(target
));
2848 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2850 if (texObj
->BaseLevel
>= texObj
->MaxLevel
) {
2855 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
&&
2856 !_mesa_cube_complete(texObj
)) {
2857 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2858 "glGenerateMipmap(incomplete cube map)");
2862 _mesa_lock_texture(ctx
, texObj
);
2864 srcImage
= _mesa_select_tex_image(ctx
, texObj
, target
, texObj
->BaseLevel
);
2866 _mesa_unlock_texture(ctx
, texObj
);
2867 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2868 "glGenerateMipmap(zero size base image)");
2872 if (_mesa_is_enum_format_integer(srcImage
->InternalFormat
) ||
2873 _mesa_is_depthstencil_format(srcImage
->InternalFormat
) ||
2874 _mesa_is_stencil_format(srcImage
->InternalFormat
)) {
2875 _mesa_unlock_texture(ctx
, texObj
);
2876 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2877 "glGenerateMipmap(invalid internal format)");
2881 if (target
== GL_TEXTURE_CUBE_MAP
) {
2883 for (face
= 0; face
< 6; face
++)
2884 ctx
->Driver
.GenerateMipmap(ctx
,
2885 GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
+ face
,
2889 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2891 _mesa_unlock_texture(ctx
, texObj
);
2895 static const struct gl_renderbuffer_attachment
*
2896 find_attachment(const struct gl_framebuffer
*fb
,
2897 const struct gl_renderbuffer
*rb
)
2900 for (i
= 0; i
< Elements(fb
->Attachment
); i
++) {
2901 if (fb
->Attachment
[i
].Renderbuffer
== rb
)
2902 return &fb
->Attachment
[i
];
2909 * Helper function for checking if the datatypes of color buffers are
2910 * compatible for glBlitFramebuffer. From the 3.1 spec, page 198:
2912 * "GL_INVALID_OPERATION is generated if mask contains GL_COLOR_BUFFER_BIT
2913 * and any of the following conditions hold:
2914 * - The read buffer contains fixed-point or floating-point values and any
2915 * draw buffer contains neither fixed-point nor floating-point values.
2916 * - The read buffer contains unsigned integer values and any draw buffer
2917 * does not contain unsigned integer values.
2918 * - The read buffer contains signed integer values and any draw buffer
2919 * does not contain signed integer values."
2922 compatible_color_datatypes(gl_format srcFormat
, gl_format dstFormat
)
2924 GLenum srcType
= _mesa_get_format_datatype(srcFormat
);
2925 GLenum dstType
= _mesa_get_format_datatype(dstFormat
);
2927 if (srcType
!= GL_INT
&& srcType
!= GL_UNSIGNED_INT
) {
2928 assert(srcType
== GL_UNSIGNED_NORMALIZED
||
2929 srcType
== GL_SIGNED_NORMALIZED
||
2930 srcType
== GL_FLOAT
);
2931 /* Boil any of those types down to GL_FLOAT */
2935 if (dstType
!= GL_INT
&& dstType
!= GL_UNSIGNED_INT
) {
2936 assert(dstType
== GL_UNSIGNED_NORMALIZED
||
2937 dstType
== GL_SIGNED_NORMALIZED
||
2938 dstType
== GL_FLOAT
);
2939 /* Boil any of those types down to GL_FLOAT */
2943 return srcType
== dstType
;
2948 compatible_resolve_formats(const struct gl_renderbuffer
*readRb
,
2949 const struct gl_renderbuffer
*drawRb
)
2951 GLenum readFormat
, drawFormat
;
2953 /* The simple case where we know the backing Mesa formats are the same.
2955 if (_mesa_get_srgb_format_linear(readRb
->Format
) ==
2956 _mesa_get_srgb_format_linear(drawRb
->Format
)) {
2960 /* The Mesa formats are different, so we must check whether the internal
2961 * formats are compatible.
2963 * Under some circumstances, the user may request e.g. two GL_RGBA8
2964 * textures and get two entirely different Mesa formats like RGBA8888 and
2965 * ARGB8888. Drivers behaving like that should be able to cope with
2966 * non-matching formats by themselves, because it's not the user's fault.
2968 * Blits between linear and sRGB formats are also allowed.
2970 readFormat
= _mesa_get_nongeneric_internalformat(readRb
->InternalFormat
);
2971 drawFormat
= _mesa_get_nongeneric_internalformat(drawRb
->InternalFormat
);
2972 readFormat
= _mesa_get_linear_internalformat(readFormat
);
2973 drawFormat
= _mesa_get_linear_internalformat(drawFormat
);
2975 if (readFormat
== drawFormat
) {
2983 is_valid_blit_filter(const struct gl_context
*ctx
, GLenum filter
)
2989 case GL_SCALED_RESOLVE_FASTEST_EXT
:
2990 case GL_SCALED_RESOLVE_NICEST_EXT
:
2991 return ctx
->Extensions
.EXT_framebuffer_multisample_blit_scaled
;
2998 * Blit rectangular region, optionally from one framebuffer to another.
3000 * Note, if the src buffer is multisampled and the dest is not, this is
3001 * when the samples must be resolved to a single color.
3004 _mesa_BlitFramebuffer(GLint srcX0
, GLint srcY0
, GLint srcX1
, GLint srcY1
,
3005 GLint dstX0
, GLint dstY0
, GLint dstX1
, GLint dstY1
,
3006 GLbitfield mask
, GLenum filter
)
3008 const GLbitfield legalMaskBits
= (GL_COLOR_BUFFER_BIT
|
3009 GL_DEPTH_BUFFER_BIT
|
3010 GL_STENCIL_BUFFER_BIT
);
3011 const struct gl_framebuffer
*readFb
, *drawFb
;
3012 GET_CURRENT_CONTEXT(ctx
);
3014 FLUSH_VERTICES(ctx
, 0);
3016 if (MESA_VERBOSE
& VERBOSE_API
)
3018 "glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d, 0x%x, %s)\n",
3019 srcX0
, srcY0
, srcX1
, srcY1
,
3020 dstX0
, dstY0
, dstX1
, dstY1
,
3021 mask
, _mesa_lookup_enum_by_nr(filter
));
3023 if (ctx
->NewState
) {
3024 _mesa_update_state(ctx
);
3027 readFb
= ctx
->ReadBuffer
;
3028 drawFb
= ctx
->DrawBuffer
;
3030 if (!readFb
|| !drawFb
) {
3031 /* This will normally never happen but someday we may want to
3032 * support MakeCurrent() with no drawables.
3037 /* check for complete framebuffers */
3038 if (drawFb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
||
3039 readFb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
3040 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
3041 "glBlitFramebufferEXT(incomplete draw/read buffers)");
3045 if (!is_valid_blit_filter(ctx
, filter
)) {
3046 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBlitFramebufferEXT(%s)",
3047 _mesa_lookup_enum_by_nr(filter
));
3051 if ((filter
== GL_SCALED_RESOLVE_FASTEST_EXT
||
3052 filter
== GL_SCALED_RESOLVE_NICEST_EXT
) &&
3053 (readFb
->Visual
.samples
== 0 || drawFb
->Visual
.samples
> 0)) {
3054 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBlitFramebufferEXT(%s)",
3055 _mesa_lookup_enum_by_nr(filter
));
3059 if (mask
& ~legalMaskBits
) {
3060 _mesa_error( ctx
, GL_INVALID_VALUE
, "glBlitFramebufferEXT(mask)");
3064 /* depth/stencil must be blitted with nearest filtering */
3065 if ((mask
& (GL_DEPTH_BUFFER_BIT
| GL_STENCIL_BUFFER_BIT
))
3066 && filter
!= GL_NEAREST
) {
3067 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3068 "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter)");
3072 /* get color read/draw renderbuffers */
3073 if (mask
& GL_COLOR_BUFFER_BIT
) {
3074 const GLuint numColorDrawBuffers
= ctx
->DrawBuffer
->_NumColorDrawBuffers
;
3075 const struct gl_renderbuffer
*colorReadRb
= readFb
->_ColorReadBuffer
;
3076 const struct gl_renderbuffer
*colorDrawRb
= NULL
;
3079 /* From the EXT_framebuffer_object spec:
3081 * "If a buffer is specified in <mask> and does not exist in both
3082 * the read and draw framebuffers, the corresponding bit is silently
3085 if (!colorReadRb
|| numColorDrawBuffers
== 0) {
3086 mask
&= ~GL_COLOR_BUFFER_BIT
;
3089 for (i
= 0; i
< numColorDrawBuffers
; i
++) {
3090 colorDrawRb
= ctx
->DrawBuffer
->_ColorDrawBuffers
[i
];
3094 /* Page 193 (page 205 of the PDF) in section 4.3.2 of the OpenGL
3095 * ES 3.0.1 spec says:
3097 * "If the source and destination buffers are identical, an
3098 * INVALID_OPERATION error is generated. Different mipmap
3099 * levels of a texture, different layers of a three-
3100 * dimensional texture or two-dimensional array texture, and
3101 * different faces of a cube map texture do not constitute
3102 * identical buffers."
3104 if (_mesa_is_gles3(ctx
) && (colorDrawRb
== colorReadRb
)) {
3105 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3106 "glBlitFramebuffer(source and destination color "
3107 "buffer cannot be the same)");
3111 if (!compatible_color_datatypes(colorReadRb
->Format
,
3112 colorDrawRb
->Format
)) {
3113 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3114 "glBlitFramebufferEXT(color buffer datatypes mismatch)");
3117 /* extra checks for multisample copies... */
3118 if (readFb
->Visual
.samples
> 0 || drawFb
->Visual
.samples
> 0) {
3119 /* color formats must match */
3120 if (!compatible_resolve_formats(colorReadRb
, colorDrawRb
)) {
3121 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3122 "glBlitFramebufferEXT(bad src/dst multisample pixel formats)");
3127 if (filter
!= GL_NEAREST
) {
3128 /* From EXT_framebuffer_multisample_blit_scaled specification:
3129 * "Calling BlitFramebuffer will result in an INVALID_OPERATION error
3130 * if filter is not NEAREST and read buffer contains integer data."
3132 GLenum type
= _mesa_get_format_datatype(colorReadRb
->Format
);
3133 if (type
== GL_INT
|| type
== GL_UNSIGNED_INT
) {
3134 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3135 "glBlitFramebufferEXT(integer color type)");
3142 if (mask
& GL_STENCIL_BUFFER_BIT
) {
3143 struct gl_renderbuffer
*readRb
=
3144 readFb
->Attachment
[BUFFER_STENCIL
].Renderbuffer
;
3145 struct gl_renderbuffer
*drawRb
=
3146 drawFb
->Attachment
[BUFFER_STENCIL
].Renderbuffer
;
3148 /* From the EXT_framebuffer_object spec:
3150 * "If a buffer is specified in <mask> and does not exist in both
3151 * the read and draw framebuffers, the corresponding bit is silently
3154 if ((readRb
== NULL
) || (drawRb
== NULL
)) {
3155 mask
&= ~GL_STENCIL_BUFFER_BIT
;
3158 int read_z_bits
, draw_z_bits
;
3160 if (_mesa_is_gles3(ctx
) && (drawRb
== readRb
)) {
3161 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3162 "glBlitFramebuffer(source and destination stencil "
3163 "buffer cannot be the same)");
3167 if (_mesa_get_format_bits(readRb
->Format
, GL_STENCIL_BITS
) !=
3168 _mesa_get_format_bits(drawRb
->Format
, GL_STENCIL_BITS
)) {
3169 /* There is no need to check the stencil datatype here, because
3170 * there is only one: GL_UNSIGNED_INT.
3172 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3173 "glBlitFramebuffer(stencil attachment format mismatch)");
3177 read_z_bits
= _mesa_get_format_bits(readRb
->Format
, GL_DEPTH_BITS
);
3178 draw_z_bits
= _mesa_get_format_bits(drawRb
->Format
, GL_DEPTH_BITS
);
3180 /* If both buffers also have depth data, the depth formats must match
3181 * as well. If one doesn't have depth, it's not blitted, so we should
3182 * ignore the depth format check.
3184 if (read_z_bits
> 0 && draw_z_bits
> 0 &&
3185 (read_z_bits
!= draw_z_bits
||
3186 _mesa_get_format_datatype(readRb
->Format
) !=
3187 _mesa_get_format_datatype(drawRb
->Format
))) {
3189 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBlitFramebuffer"
3190 "(stencil attachment depth format mismatch)");
3196 if (mask
& GL_DEPTH_BUFFER_BIT
) {
3197 struct gl_renderbuffer
*readRb
=
3198 readFb
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
3199 struct gl_renderbuffer
*drawRb
=
3200 drawFb
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
3202 /* From the EXT_framebuffer_object spec:
3204 * "If a buffer is specified in <mask> and does not exist in both
3205 * the read and draw framebuffers, the corresponding bit is silently
3208 if ((readRb
== NULL
) || (drawRb
== NULL
)) {
3209 mask
&= ~GL_DEPTH_BUFFER_BIT
;
3212 int read_s_bit
, draw_s_bit
;
3214 if (_mesa_is_gles3(ctx
) && (drawRb
== readRb
)) {
3215 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3216 "glBlitFramebuffer(source and destination depth "
3217 "buffer cannot be the same)");
3221 if ((_mesa_get_format_bits(readRb
->Format
, GL_DEPTH_BITS
) !=
3222 _mesa_get_format_bits(drawRb
->Format
, GL_DEPTH_BITS
)) ||
3223 (_mesa_get_format_datatype(readRb
->Format
) !=
3224 _mesa_get_format_datatype(drawRb
->Format
))) {
3225 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3226 "glBlitFramebuffer(depth attachment format mismatch)");
3230 read_s_bit
= _mesa_get_format_bits(readRb
->Format
, GL_STENCIL_BITS
);
3231 draw_s_bit
= _mesa_get_format_bits(drawRb
->Format
, GL_STENCIL_BITS
);
3233 /* If both buffers also have stencil data, the stencil formats must
3234 * match as well. If one doesn't have stencil, it's not blitted, so
3235 * we should ignore the stencil format check.
3237 if (read_s_bit
> 0 && draw_s_bit
> 0 && read_s_bit
!= draw_s_bit
) {
3238 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBlitFramebuffer"
3239 "(depth attachment stencil bits mismatch)");
3246 if (_mesa_is_gles3(ctx
)) {
3247 /* Page 194 (page 206 of the PDF) in section 4.3.2 of the OpenGL ES
3250 * "If SAMPLE_BUFFERS for the draw framebuffer is greater than zero,
3251 * an INVALID_OPERATION error is generated."
3253 if (drawFb
->Visual
.samples
> 0) {
3254 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3255 "glBlitFramebuffer(destination samples must be 0)");
3259 /* Page 194 (page 206 of the PDF) in section 4.3.2 of the OpenGL ES
3262 * "If SAMPLE_BUFFERS for the read framebuffer is greater than zero,
3263 * no copy is performed and an INVALID_OPERATION error is generated
3264 * if the formats of the read and draw framebuffers are not
3265 * identical or if the source and destination rectangles are not
3266 * defined with the same (X0, Y0) and (X1, Y1) bounds."
3268 * The format check was made above because desktop OpenGL has the same
3271 if (readFb
->Visual
.samples
> 0
3272 && (srcX0
!= dstX0
|| srcY0
!= dstY0
3273 || srcX1
!= dstX1
|| srcY1
!= dstY1
)) {
3274 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3275 "glBlitFramebuffer(bad src/dst multisample region)");
3279 if (readFb
->Visual
.samples
> 0 &&
3280 drawFb
->Visual
.samples
> 0 &&
3281 readFb
->Visual
.samples
!= drawFb
->Visual
.samples
) {
3282 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3283 "glBlitFramebufferEXT(mismatched samples)");
3287 /* extra checks for multisample copies... */
3288 if ((readFb
->Visual
.samples
> 0 || drawFb
->Visual
.samples
> 0) &&
3289 (filter
== GL_NEAREST
|| filter
== GL_LINEAR
)) {
3290 /* src and dest region sizes must be the same */
3291 if (abs(srcX1
- srcX0
) != abs(dstX1
- dstX0
) ||
3292 abs(srcY1
- srcY0
) != abs(dstY1
- dstY0
)) {
3293 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3294 "glBlitFramebufferEXT(bad src/dst multisample region sizes)");
3300 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
3301 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBlitFramebufferEXT");
3307 const struct gl_renderbuffer
*colorReadRb
= readFb
->_ColorReadBuffer
;
3308 const struct gl_renderbuffer
*colorDrawRb
= NULL
;
3311 printf("glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d,"
3313 srcX0
, srcY0
, srcX1
, srcY1
,
3314 dstX0
, dstY0
, dstX1
, dstY1
,
3317 const struct gl_renderbuffer_attachment
*att
;
3319 att
= find_attachment(readFb
, colorReadRb
);
3320 printf(" Src FBO %u RB %u (%dx%d) ",
3321 readFb
->Name
, colorReadRb
->Name
,
3322 colorReadRb
->Width
, colorReadRb
->Height
);
3323 if (att
&& att
->Texture
) {
3324 printf("Tex %u tgt 0x%x level %u face %u",
3326 att
->Texture
->Target
,
3332 /* Print all active color render buffers */
3333 for (i
= 0; i
< ctx
->DrawBuffer
->_NumColorDrawBuffers
; i
++) {
3334 colorDrawRb
= ctx
->DrawBuffer
->_ColorDrawBuffers
[i
];
3338 att
= find_attachment(drawFb
, colorDrawRb
);
3339 printf(" Dst FBO %u RB %u (%dx%d) ",
3340 drawFb
->Name
, colorDrawRb
->Name
,
3341 colorDrawRb
->Width
, colorDrawRb
->Height
);
3342 if (att
&& att
->Texture
) {
3343 printf("Tex %u tgt 0x%x level %u face %u",
3345 att
->Texture
->Target
,
3355 (srcX1
- srcX0
) == 0 || (srcY1
- srcY0
) == 0 ||
3356 (dstX1
- dstX0
) == 0 || (dstY1
- dstY0
) == 0) {
3360 ASSERT(ctx
->Driver
.BlitFramebuffer
);
3361 ctx
->Driver
.BlitFramebuffer(ctx
,
3362 srcX0
, srcY0
, srcX1
, srcY1
,
3363 dstX0
, dstY0
, dstX1
, dstY1
,
3369 invalidate_framebuffer_storage(GLenum target
, GLsizei numAttachments
,
3370 const GLenum
*attachments
, GLint x
, GLint y
,
3371 GLsizei width
, GLsizei height
, const char *name
)
3374 struct gl_framebuffer
*fb
;
3375 GET_CURRENT_CONTEXT(ctx
);
3377 fb
= get_framebuffer_target(ctx
, target
);
3379 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", name
);
3383 if (numAttachments
< 0) {
3384 _mesa_error(ctx
, GL_INVALID_VALUE
,
3385 "%s(numAttachments < 0)", name
);
3389 /* The GL_ARB_invalidate_subdata spec says:
3391 * "If an attachment is specified that does not exist in the
3392 * framebuffer bound to <target>, it is ignored."
3396 * "If <attachments> contains COLOR_ATTACHMENTm and m is greater than
3397 * or equal to the value of MAX_COLOR_ATTACHMENTS, then the error
3398 * INVALID_OPERATION is generated."
3400 * No mention is made of GL_AUXi being out of range. Therefore, we allow
3401 * any enum that can be allowed by the API (OpenGL ES 3.0 has a different
3402 * set of retrictions).
3404 for (i
= 0; i
< numAttachments
; i
++) {
3405 if (_mesa_is_winsys_fbo(fb
)) {
3406 switch (attachments
[i
]) {
3412 /* Accumulation buffers and auxilary buffers were removed in
3413 * OpenGL 3.1, and they never existed in OpenGL ES.
3415 if (ctx
->API
!= API_OPENGL_COMPAT
)
3425 case GL_FRONT_RIGHT
:
3426 if (!_mesa_is_desktop_gl(ctx
))
3433 switch (attachments
[i
]) {
3434 case GL_DEPTH_ATTACHMENT
:
3435 case GL_STENCIL_ATTACHMENT
:
3437 case GL_COLOR_ATTACHMENT0
:
3438 case GL_COLOR_ATTACHMENT1
:
3439 case GL_COLOR_ATTACHMENT2
:
3440 case GL_COLOR_ATTACHMENT3
:
3441 case GL_COLOR_ATTACHMENT4
:
3442 case GL_COLOR_ATTACHMENT5
:
3443 case GL_COLOR_ATTACHMENT6
:
3444 case GL_COLOR_ATTACHMENT7
:
3445 case GL_COLOR_ATTACHMENT8
:
3446 case GL_COLOR_ATTACHMENT9
:
3447 case GL_COLOR_ATTACHMENT10
:
3448 case GL_COLOR_ATTACHMENT11
:
3449 case GL_COLOR_ATTACHMENT12
:
3450 case GL_COLOR_ATTACHMENT13
:
3451 case GL_COLOR_ATTACHMENT14
:
3452 case GL_COLOR_ATTACHMENT15
: {
3453 unsigned k
= attachments
[i
] - GL_COLOR_ATTACHMENT0
;
3454 if (k
>= ctx
->Const
.MaxColorAttachments
) {
3455 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3456 "%s(attachment >= max. color attachments)", name
);
3466 /* We don't actually do anything for this yet. Just return after
3467 * validating the parameters and generating the required errors.
3472 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(attachment)", name
);
3477 _mesa_InvalidateSubFramebuffer(GLenum target
, GLsizei numAttachments
,
3478 const GLenum
*attachments
, GLint x
, GLint y
,
3479 GLsizei width
, GLsizei height
)
3481 invalidate_framebuffer_storage(target
, numAttachments
, attachments
,
3482 x
, y
, width
, height
,
3483 "glInvalidateSubFramebuffer");
3487 _mesa_InvalidateFramebuffer(GLenum target
, GLsizei numAttachments
,
3488 const GLenum
*attachments
)
3490 /* The GL_ARB_invalidate_subdata spec says:
3494 * void InvalidateFramebuffer(enum target,
3495 * sizei numAttachments,
3496 * const enum *attachments);
3498 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
3499 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
3500 * <MAX_VIEWPORT_DIMS[1]> respectively."
3502 invalidate_framebuffer_storage(target
, numAttachments
, attachments
,
3503 0, 0, MAX_VIEWPORT_WIDTH
, MAX_VIEWPORT_HEIGHT
,
3504 "glInvalidateFramebuffer");
3508 _mesa_DiscardFramebufferEXT(GLenum target
, GLsizei numAttachments
,
3509 const GLenum
*attachments
)
3511 struct gl_framebuffer
*fb
;
3514 GET_CURRENT_CONTEXT(ctx
);
3516 fb
= get_framebuffer_target(ctx
, target
);
3518 _mesa_error(ctx
, GL_INVALID_ENUM
,
3519 "glDiscardFramebufferEXT(target %s)",
3520 _mesa_lookup_enum_by_nr(target
));
3524 if (numAttachments
< 0) {
3525 _mesa_error(ctx
, GL_INVALID_VALUE
,
3526 "glDiscardFramebufferEXT(numAttachments < 0)");
3530 for (i
= 0; i
< numAttachments
; i
++) {
3531 switch (attachments
[i
]) {
3535 if (_mesa_is_user_fbo(fb
))
3538 case GL_COLOR_ATTACHMENT0
:
3539 case GL_DEPTH_ATTACHMENT
:
3540 case GL_STENCIL_ATTACHMENT
:
3541 if (_mesa_is_winsys_fbo(fb
))
3549 if (ctx
->Driver
.DiscardFramebuffer
)
3550 ctx
->Driver
.DiscardFramebuffer(ctx
, target
, numAttachments
, attachments
);
3555 _mesa_error(ctx
, GL_INVALID_ENUM
,
3556 "glDiscardFramebufferEXT(attachment %s)",
3557 _mesa_lookup_enum_by_nr(attachments
[i
]));