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"
56 * None of the GL_EXT_framebuffer_object functions are compiled into
63 * When glGenRender/FramebuffersEXT() is called we insert pointers to
64 * these placeholder objects into the hash table.
65 * Later, when the object ID is first bound, we replace the placeholder
66 * with the real frame/renderbuffer.
68 static struct gl_framebuffer DummyFramebuffer
;
69 static struct gl_renderbuffer DummyRenderbuffer
;
71 /* We bind this framebuffer when applications pass a NULL
72 * drawable/surface in make current. */
73 static struct gl_framebuffer IncompleteFramebuffer
;
77 delete_dummy_renderbuffer(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
)
83 delete_dummy_framebuffer(struct gl_framebuffer
*fb
)
90 _mesa_init_fbobjects(struct gl_context
*ctx
)
92 mtx_init(&DummyFramebuffer
.Mutex
, mtx_plain
);
93 mtx_init(&DummyRenderbuffer
.Mutex
, mtx_plain
);
94 mtx_init(&IncompleteFramebuffer
.Mutex
, mtx_plain
);
95 DummyFramebuffer
.Delete
= delete_dummy_framebuffer
;
96 DummyRenderbuffer
.Delete
= delete_dummy_renderbuffer
;
97 IncompleteFramebuffer
.Delete
= delete_dummy_framebuffer
;
100 struct gl_framebuffer
*
101 _mesa_get_incomplete_framebuffer(void)
103 return &IncompleteFramebuffer
;
107 * Helper routine for getting a gl_renderbuffer.
109 struct gl_renderbuffer
*
110 _mesa_lookup_renderbuffer(struct gl_context
*ctx
, GLuint id
)
112 struct gl_renderbuffer
*rb
;
117 rb
= (struct gl_renderbuffer
*)
118 _mesa_HashLookup(ctx
->Shared
->RenderBuffers
, id
);
124 * A convenience function for direct state access that throws
125 * GL_INVALID_OPERATION if the renderbuffer doesn't exist.
127 struct gl_renderbuffer
*
128 _mesa_lookup_renderbuffer_err(struct gl_context
*ctx
, GLuint id
,
131 struct gl_renderbuffer
*rb
;
133 rb
= _mesa_lookup_renderbuffer(ctx
, id
);
134 if (!rb
|| rb
== &DummyRenderbuffer
) {
135 _mesa_error(ctx
, GL_INVALID_OPERATION
,
136 "%s(non-existent renderbuffer %u)", func
, id
);
145 * Helper routine for getting a gl_framebuffer.
147 struct gl_framebuffer
*
148 _mesa_lookup_framebuffer(struct gl_context
*ctx
, GLuint id
)
150 struct gl_framebuffer
*fb
;
155 fb
= (struct gl_framebuffer
*)
156 _mesa_HashLookup(ctx
->Shared
->FrameBuffers
, id
);
162 * A convenience function for direct state access that throws
163 * GL_INVALID_OPERATION if the framebuffer doesn't exist.
165 struct gl_framebuffer
*
166 _mesa_lookup_framebuffer_err(struct gl_context
*ctx
, GLuint id
,
169 struct gl_framebuffer
*fb
;
171 fb
= _mesa_lookup_framebuffer(ctx
, id
);
172 if (!fb
|| fb
== &DummyFramebuffer
) {
173 _mesa_error(ctx
, GL_INVALID_OPERATION
,
174 "%s(non-existent framebuffer %u)", func
, id
);
183 * Mark the given framebuffer as invalid. This will force the
184 * test for framebuffer completeness to be done before the framebuffer
188 invalidate_framebuffer(struct gl_framebuffer
*fb
)
190 fb
->_Status
= 0; /* "indeterminate" */
195 * Return the gl_framebuffer object which corresponds to the given
196 * framebuffer target, such as GL_DRAW_FRAMEBUFFER.
197 * Check support for GL_EXT_framebuffer_blit to determine if certain
199 * \return gl_framebuffer pointer or NULL if target is illegal
201 static struct gl_framebuffer
*
202 get_framebuffer_target(struct gl_context
*ctx
, GLenum target
)
204 bool have_fb_blit
= _mesa_is_gles3(ctx
) || _mesa_is_desktop_gl(ctx
);
206 case GL_DRAW_FRAMEBUFFER
:
207 return have_fb_blit
? ctx
->DrawBuffer
: NULL
;
208 case GL_READ_FRAMEBUFFER
:
209 return have_fb_blit
? ctx
->ReadBuffer
: NULL
;
210 case GL_FRAMEBUFFER_EXT
:
211 return ctx
->DrawBuffer
;
219 * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding
220 * gl_renderbuffer_attachment object.
221 * This function is only used for user-created FB objects, not the
222 * default / window-system FB object.
223 * If \p attachment is GL_DEPTH_STENCIL_ATTACHMENT, return a pointer to
224 * the depth buffer attachment point.
226 static struct gl_renderbuffer_attachment
*
227 get_attachment(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
232 assert(_mesa_is_user_fbo(fb
));
234 switch (attachment
) {
235 case GL_COLOR_ATTACHMENT0_EXT
:
236 case GL_COLOR_ATTACHMENT1_EXT
:
237 case GL_COLOR_ATTACHMENT2_EXT
:
238 case GL_COLOR_ATTACHMENT3_EXT
:
239 case GL_COLOR_ATTACHMENT4_EXT
:
240 case GL_COLOR_ATTACHMENT5_EXT
:
241 case GL_COLOR_ATTACHMENT6_EXT
:
242 case GL_COLOR_ATTACHMENT7_EXT
:
243 case GL_COLOR_ATTACHMENT8_EXT
:
244 case GL_COLOR_ATTACHMENT9_EXT
:
245 case GL_COLOR_ATTACHMENT10_EXT
:
246 case GL_COLOR_ATTACHMENT11_EXT
:
247 case GL_COLOR_ATTACHMENT12_EXT
:
248 case GL_COLOR_ATTACHMENT13_EXT
:
249 case GL_COLOR_ATTACHMENT14_EXT
:
250 case GL_COLOR_ATTACHMENT15_EXT
:
251 /* Only OpenGL ES 1.x forbids color attachments other than
252 * GL_COLOR_ATTACHMENT0. For all other APIs the limit set by the
255 i
= attachment
- GL_COLOR_ATTACHMENT0_EXT
;
256 if (i
>= ctx
->Const
.MaxColorAttachments
257 || (i
> 0 && ctx
->API
== API_OPENGLES
)) {
260 return &fb
->Attachment
[BUFFER_COLOR0
+ i
];
261 case GL_DEPTH_STENCIL_ATTACHMENT
:
262 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles3(ctx
))
265 case GL_DEPTH_ATTACHMENT_EXT
:
266 return &fb
->Attachment
[BUFFER_DEPTH
];
267 case GL_STENCIL_ATTACHMENT_EXT
:
268 return &fb
->Attachment
[BUFFER_STENCIL
];
276 * As above, but only used for getting attachments of the default /
277 * window-system framebuffer (not user-created framebuffer objects).
279 static struct gl_renderbuffer_attachment
*
280 _mesa_get_fb0_attachment(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
283 assert(_mesa_is_winsys_fbo(fb
));
285 if (_mesa_is_gles3(ctx
)) {
286 assert(attachment
== GL_BACK
||
287 attachment
== GL_DEPTH
||
288 attachment
== GL_STENCIL
);
289 switch (attachment
) {
291 /* Since there is no stereo rendering in ES 3.0, only return the
294 if (ctx
->DrawBuffer
->Visual
.doubleBufferMode
)
295 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
296 return &fb
->Attachment
[BUFFER_FRONT_LEFT
];
298 return &fb
->Attachment
[BUFFER_DEPTH
];
300 return &fb
->Attachment
[BUFFER_STENCIL
];
304 switch (attachment
) {
306 return &fb
->Attachment
[BUFFER_FRONT_LEFT
];
308 return &fb
->Attachment
[BUFFER_FRONT_RIGHT
];
310 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
312 return &fb
->Attachment
[BUFFER_BACK_RIGHT
];
314 if (fb
->Visual
.numAuxBuffers
== 1) {
315 return &fb
->Attachment
[BUFFER_AUX0
];
319 /* Page 336 (page 352 of the PDF) of the OpenGL 3.0 spec says:
321 * "If the default framebuffer is bound to target, then attachment must
322 * be one of FRONT LEFT, FRONT RIGHT, BACK LEFT, BACK RIGHT, or AUXi,
323 * identifying a color buffer; DEPTH, identifying the depth buffer; or
324 * STENCIL, identifying the stencil buffer."
326 * Revision #34 of the ARB_framebuffer_object spec has essentially the same
327 * language. However, revision #33 of the ARB_framebuffer_object spec
330 * "If the default framebuffer is bound to <target>, then <attachment>
331 * must be one of FRONT_LEFT, FRONT_RIGHT, BACK_LEFT, BACK_RIGHT, AUXi,
332 * DEPTH_BUFFER, or STENCIL_BUFFER, identifying a color buffer, the
333 * depth buffer, or the stencil buffer, and <pname> may be
334 * FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE or
335 * FRAMEBUFFER_ATTACHMENT_OBJECT_NAME."
337 * The enum values for DEPTH_BUFFER and STENCIL_BUFFER have been removed
338 * from glext.h, so shipping apps should not use those values.
340 * Note that neither EXT_framebuffer_object nor OES_framebuffer_object
341 * support queries of the window system FBO.
344 return &fb
->Attachment
[BUFFER_DEPTH
];
346 return &fb
->Attachment
[BUFFER_STENCIL
];
355 * Remove any texture or renderbuffer attached to the given attachment
356 * point. Update reference counts, etc.
359 remove_attachment(struct gl_context
*ctx
,
360 struct gl_renderbuffer_attachment
*att
)
362 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
364 /* tell driver that we're done rendering to this texture. */
365 if (rb
&& rb
->NeedsFinishRenderTexture
)
366 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
368 if (att
->Type
== GL_TEXTURE
) {
369 assert(att
->Texture
);
370 _mesa_reference_texobj(&att
->Texture
, NULL
); /* unbind */
371 assert(!att
->Texture
);
373 if (att
->Type
== GL_TEXTURE
|| att
->Type
== GL_RENDERBUFFER_EXT
) {
374 assert(!att
->Texture
);
375 _mesa_reference_renderbuffer(&att
->Renderbuffer
, NULL
); /* unbind */
376 assert(!att
->Renderbuffer
);
379 att
->Complete
= GL_TRUE
;
383 * Verify a couple error conditions that will lead to an incomplete FBO and
384 * may cause problems for the driver's RenderTexture path.
387 driver_RenderTexture_is_safe(const struct gl_renderbuffer_attachment
*att
)
389 const struct gl_texture_image
*const texImage
=
390 att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
393 texImage
->Width
== 0 || texImage
->Height
== 0 || texImage
->Depth
== 0)
396 if ((texImage
->TexObject
->Target
== GL_TEXTURE_1D_ARRAY
397 && att
->Zoffset
>= texImage
->Height
)
398 || (texImage
->TexObject
->Target
!= GL_TEXTURE_1D_ARRAY
399 && att
->Zoffset
>= texImage
->Depth
))
406 * Create a renderbuffer which will be set up by the driver to wrap the
407 * texture image slice.
409 * By using a gl_renderbuffer (like user-allocated renderbuffers), drivers get
410 * to share most of their framebuffer rendering code between winsys,
411 * renderbuffer, and texture attachments.
413 * The allocated renderbuffer uses a non-zero Name so that drivers can check
414 * it for determining vertical orientation, but we use ~0 to make it fairly
415 * unambiguous with actual user (non-texture) renderbuffers.
418 _mesa_update_texture_renderbuffer(struct gl_context
*ctx
,
419 struct gl_framebuffer
*fb
,
420 struct gl_renderbuffer_attachment
*att
)
422 struct gl_texture_image
*texImage
;
423 struct gl_renderbuffer
*rb
;
425 texImage
= att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
427 rb
= att
->Renderbuffer
;
429 rb
= ctx
->Driver
.NewRenderbuffer(ctx
, ~0);
431 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glFramebufferTexture()");
434 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
436 /* This can't get called on a texture renderbuffer, so set it to NULL
437 * for clarity compared to user renderbuffers.
439 rb
->AllocStorage
= NULL
;
441 rb
->NeedsFinishRenderTexture
= ctx
->Driver
.FinishRenderTexture
!= NULL
;
447 rb
->_BaseFormat
= texImage
->_BaseFormat
;
448 rb
->Format
= texImage
->TexFormat
;
449 rb
->InternalFormat
= texImage
->InternalFormat
;
450 rb
->Width
= texImage
->Width2
;
451 rb
->Height
= texImage
->Height2
;
452 rb
->Depth
= texImage
->Depth2
;
453 rb
->NumSamples
= texImage
->NumSamples
;
454 rb
->TexImage
= texImage
;
456 if (driver_RenderTexture_is_safe(att
))
457 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
461 * Bind a texture object to an attachment point.
462 * The previous binding, if any, will be removed first.
465 set_texture_attachment(struct gl_context
*ctx
,
466 struct gl_framebuffer
*fb
,
467 struct gl_renderbuffer_attachment
*att
,
468 struct gl_texture_object
*texObj
,
469 GLenum texTarget
, GLuint level
, GLuint layer
,
472 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
474 if (rb
&& rb
->NeedsFinishRenderTexture
)
475 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
477 if (att
->Texture
== texObj
) {
478 /* re-attaching same texture */
479 assert(att
->Type
== GL_TEXTURE
);
483 remove_attachment(ctx
, att
);
484 att
->Type
= GL_TEXTURE
;
485 assert(!att
->Texture
);
486 _mesa_reference_texobj(&att
->Texture
, texObj
);
488 invalidate_framebuffer(fb
);
490 /* always update these fields */
491 att
->TextureLevel
= level
;
492 att
->CubeMapFace
= _mesa_tex_target_to_face(texTarget
);
493 att
->Zoffset
= layer
;
494 att
->Layered
= layered
;
495 att
->Complete
= GL_FALSE
;
497 _mesa_update_texture_renderbuffer(ctx
, fb
, att
);
502 * Bind a renderbuffer to an attachment point.
503 * The previous binding, if any, will be removed first.
506 set_renderbuffer_attachment(struct gl_context
*ctx
,
507 struct gl_renderbuffer_attachment
*att
,
508 struct gl_renderbuffer
*rb
)
510 /* XXX check if re-doing same attachment, exit early */
511 remove_attachment(ctx
, att
);
512 att
->Type
= GL_RENDERBUFFER_EXT
;
513 att
->Texture
= NULL
; /* just to be safe */
514 att
->Layered
= GL_FALSE
;
515 att
->Complete
= GL_FALSE
;
516 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
521 * Fallback for ctx->Driver.FramebufferRenderbuffer()
522 * Attach a renderbuffer object to a framebuffer object.
525 _mesa_FramebufferRenderbuffer_sw(struct gl_context
*ctx
,
526 struct gl_framebuffer
*fb
,
528 struct gl_renderbuffer
*rb
)
530 struct gl_renderbuffer_attachment
*att
;
532 mtx_lock(&fb
->Mutex
);
534 att
= get_attachment(ctx
, fb
, attachment
);
537 set_renderbuffer_attachment(ctx
, att
, rb
);
538 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
539 /* do stencil attachment here (depth already done above) */
540 att
= get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
);
542 set_renderbuffer_attachment(ctx
, att
, rb
);
544 rb
->AttachedAnytime
= GL_TRUE
;
547 remove_attachment(ctx
, att
);
548 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
549 /* detach stencil (depth was detached above) */
550 att
= get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
);
552 remove_attachment(ctx
, att
);
556 invalidate_framebuffer(fb
);
558 mtx_unlock(&fb
->Mutex
);
563 * Fallback for ctx->Driver.ValidateFramebuffer()
564 * Check if the renderbuffer's formats are supported by the software
566 * Drivers should probably override this.
569 _mesa_validate_framebuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
572 for (buf
= 0; buf
< BUFFER_COUNT
; buf
++) {
573 const struct gl_renderbuffer
*rb
= fb
->Attachment
[buf
].Renderbuffer
;
575 switch (rb
->_BaseFormat
) {
577 case GL_LUMINANCE_ALPHA
:
582 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
586 switch (rb
->Format
) {
587 /* XXX This list is likely incomplete. */
588 case MESA_FORMAT_R9G9B9E5_FLOAT
:
589 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
592 /* render buffer format is supported by software rendering */
601 * Return true if the framebuffer has a combined depth/stencil
602 * renderbuffer attached.
605 _mesa_has_depthstencil_combined(const struct gl_framebuffer
*fb
)
607 const struct gl_renderbuffer_attachment
*depth
=
608 &fb
->Attachment
[BUFFER_DEPTH
];
609 const struct gl_renderbuffer_attachment
*stencil
=
610 &fb
->Attachment
[BUFFER_STENCIL
];
612 if (depth
->Type
== stencil
->Type
) {
613 if (depth
->Type
== GL_RENDERBUFFER_EXT
&&
614 depth
->Renderbuffer
== stencil
->Renderbuffer
)
617 if (depth
->Type
== GL_TEXTURE
&&
618 depth
->Texture
== stencil
->Texture
)
630 att_incomplete(const char *msg
)
632 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
633 _mesa_debug(NULL
, "attachment incomplete: %s\n", msg
);
642 fbo_incomplete(struct gl_context
*ctx
, const char *msg
, int index
)
644 static GLuint msg_id
;
646 _mesa_gl_debug(ctx
, &msg_id
,
647 MESA_DEBUG_SOURCE_API
,
648 MESA_DEBUG_TYPE_OTHER
,
649 MESA_DEBUG_SEVERITY_MEDIUM
,
650 "FBO incomplete: %s [%d]\n", msg
, index
);
652 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
653 _mesa_debug(NULL
, "FBO Incomplete: %s [%d]\n", msg
, index
);
659 * Is the given base format a legal format for a color renderbuffer?
662 _mesa_is_legal_color_format(const struct gl_context
*ctx
, GLenum baseFormat
)
664 switch (baseFormat
) {
669 case GL_LUMINANCE_ALPHA
:
672 return ctx
->API
== API_OPENGL_COMPAT
&&
673 ctx
->Extensions
.ARB_framebuffer_object
;
676 return ctx
->Extensions
.ARB_texture_rg
;
684 * Is the given base format a legal format for a color renderbuffer?
687 is_format_color_renderable(const struct gl_context
*ctx
, mesa_format format
,
688 GLenum internalFormat
)
690 const GLenum baseFormat
=
691 _mesa_get_format_base_format(format
);
694 valid
= _mesa_is_legal_color_format(ctx
, baseFormat
);
695 if (!valid
|| _mesa_is_desktop_gl(ctx
)) {
699 /* Reject additional cases for GLES */
700 switch (internalFormat
) {
720 if (format
== MESA_FORMAT_B10G10R10A2_UNORM
&&
721 internalFormat
!= GL_RGB10_A2
) {
730 * Is the given base format a legal format for a depth/stencil renderbuffer?
733 is_legal_depth_format(const struct gl_context
*ctx
, GLenum baseFormat
)
735 switch (baseFormat
) {
736 case GL_DEPTH_COMPONENT
:
737 case GL_DEPTH_STENCIL_EXT
:
746 * Test if an attachment point is complete and update its Complete field.
747 * \param format if GL_COLOR, this is a color attachment point,
748 * if GL_DEPTH, this is a depth component attachment point,
749 * if GL_STENCIL, this is a stencil component attachment point.
752 test_attachment_completeness(const struct gl_context
*ctx
, GLenum format
,
753 struct gl_renderbuffer_attachment
*att
)
755 assert(format
== GL_COLOR
|| format
== GL_DEPTH
|| format
== GL_STENCIL
);
757 /* assume complete */
758 att
->Complete
= GL_TRUE
;
760 /* Look for reasons why the attachment might be incomplete */
761 if (att
->Type
== GL_TEXTURE
) {
762 const struct gl_texture_object
*texObj
= att
->Texture
;
763 struct gl_texture_image
*texImage
;
767 att_incomplete("no texobj");
768 att
->Complete
= GL_FALSE
;
772 texImage
= texObj
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
774 att_incomplete("no teximage");
775 att
->Complete
= GL_FALSE
;
778 if (texImage
->Width
< 1 || texImage
->Height
< 1) {
779 att_incomplete("teximage width/height=0");
780 att
->Complete
= GL_FALSE
;
784 switch (texObj
->Target
) {
786 if (att
->Zoffset
>= texImage
->Depth
) {
787 att_incomplete("bad z offset");
788 att
->Complete
= GL_FALSE
;
792 case GL_TEXTURE_1D_ARRAY
:
793 if (att
->Zoffset
>= texImage
->Height
) {
794 att_incomplete("bad 1D-array layer");
795 att
->Complete
= GL_FALSE
;
799 case GL_TEXTURE_2D_ARRAY
:
800 if (att
->Zoffset
>= texImage
->Depth
) {
801 att_incomplete("bad 2D-array layer");
802 att
->Complete
= GL_FALSE
;
806 case GL_TEXTURE_CUBE_MAP_ARRAY
:
807 if (att
->Zoffset
>= texImage
->Depth
) {
808 att_incomplete("bad cube-array layer");
809 att
->Complete
= GL_FALSE
;
815 baseFormat
= texImage
->_BaseFormat
;
817 if (format
== GL_COLOR
) {
818 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
819 att_incomplete("bad format");
820 att
->Complete
= GL_FALSE
;
823 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
824 att_incomplete("compressed internalformat");
825 att
->Complete
= GL_FALSE
;
829 /* OES_texture_float allows creation and use of floating point
830 * textures with GL_FLOAT, GL_HALF_FLOAT but it does not allow
831 * these textures to be used as a render target, this is done via
832 * GL_EXT_color_buffer(_half)_float with set of new sized types.
834 if (_mesa_is_gles(ctx
) && (texImage
->TexObject
->_IsFloat
||
835 texImage
->TexObject
->_IsHalfFloat
)) {
836 att_incomplete("bad internal format");
837 att
->Complete
= GL_FALSE
;
841 else if (format
== GL_DEPTH
) {
842 if (baseFormat
== GL_DEPTH_COMPONENT
) {
845 else if (ctx
->Extensions
.ARB_depth_texture
&&
846 baseFormat
== GL_DEPTH_STENCIL
) {
850 att
->Complete
= GL_FALSE
;
851 att_incomplete("bad depth format");
856 assert(format
== GL_STENCIL
);
857 if (ctx
->Extensions
.ARB_depth_texture
&&
858 baseFormat
== GL_DEPTH_STENCIL
) {
860 } else if (ctx
->Extensions
.ARB_texture_stencil8
&&
861 baseFormat
== GL_STENCIL_INDEX
) {
864 /* no such thing as stencil-only textures */
865 att_incomplete("illegal stencil texture");
866 att
->Complete
= GL_FALSE
;
871 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
872 const GLenum baseFormat
= att
->Renderbuffer
->_BaseFormat
;
874 assert(att
->Renderbuffer
);
875 if (!att
->Renderbuffer
->InternalFormat
||
876 att
->Renderbuffer
->Width
< 1 ||
877 att
->Renderbuffer
->Height
< 1) {
878 att_incomplete("0x0 renderbuffer");
879 att
->Complete
= GL_FALSE
;
882 if (format
== GL_COLOR
) {
883 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
884 att_incomplete("bad renderbuffer color format");
885 att
->Complete
= GL_FALSE
;
889 else if (format
== GL_DEPTH
) {
890 if (baseFormat
== GL_DEPTH_COMPONENT
) {
893 else if (baseFormat
== GL_DEPTH_STENCIL
) {
897 att_incomplete("bad renderbuffer depth format");
898 att
->Complete
= GL_FALSE
;
903 assert(format
== GL_STENCIL
);
904 if (baseFormat
== GL_STENCIL_INDEX
||
905 baseFormat
== GL_DEPTH_STENCIL
) {
909 att
->Complete
= GL_FALSE
;
910 att_incomplete("bad renderbuffer stencil format");
916 assert(att
->Type
== GL_NONE
);
924 * Test if the given framebuffer object is complete and update its
925 * Status field with the results.
926 * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
927 * driver to make hardware-specific validation/completeness checks.
928 * Also update the framebuffer's Width and Height fields if the
929 * framebuffer is complete.
932 _mesa_test_framebuffer_completeness(struct gl_context
*ctx
,
933 struct gl_framebuffer
*fb
)
936 GLenum intFormat
= GL_NONE
; /* color buffers' internal format */
937 GLuint minWidth
= ~0, minHeight
= ~0, maxWidth
= 0, maxHeight
= 0;
938 GLint numSamples
= -1;
939 GLint fixedSampleLocations
= -1;
942 /* Covers max_layer_count, is_layered, and layer_tex_target */
943 bool layer_info_valid
= false;
944 GLuint max_layer_count
= 0, att_layer_count
;
945 bool is_layered
= false;
946 GLenum layer_tex_target
= 0;
947 bool has_depth_attachment
= false;
948 bool has_stencil_attachment
= false;
950 assert(_mesa_is_user_fbo(fb
));
952 /* we're changing framebuffer fields here */
953 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
958 fb
->_AllColorBuffersFixedPoint
= GL_TRUE
;
959 fb
->_HasSNormOrFloatColorBuffer
= GL_FALSE
;
960 fb
->_HasAttachments
= true;
962 /* Start at -2 to more easily loop over all attachment points.
967 for (i
= -2; i
< (GLint
) ctx
->Const
.MaxColorAttachments
; i
++) {
968 struct gl_renderbuffer_attachment
*att
;
970 mesa_format attFormat
;
971 GLenum att_tex_target
= GL_NONE
;
974 * XXX for ARB_fbo, only check color buffers that are named by
975 * GL_READ_BUFFER and GL_DRAW_BUFFERi.
978 /* check for attachment completeness
981 att
= &fb
->Attachment
[BUFFER_DEPTH
];
982 test_attachment_completeness(ctx
, GL_DEPTH
, att
);
983 if (!att
->Complete
) {
984 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
985 fbo_incomplete(ctx
, "depth attachment incomplete", -1);
987 } else if (att
->Type
!= GL_NONE
) {
988 has_depth_attachment
= true;
992 att
= &fb
->Attachment
[BUFFER_STENCIL
];
993 test_attachment_completeness(ctx
, GL_STENCIL
, att
);
994 if (!att
->Complete
) {
995 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
996 fbo_incomplete(ctx
, "stencil attachment incomplete", -1);
998 } else if (att
->Type
!= GL_NONE
) {
999 has_stencil_attachment
= true;
1003 att
= &fb
->Attachment
[BUFFER_COLOR0
+ i
];
1004 test_attachment_completeness(ctx
, GL_COLOR
, att
);
1005 if (!att
->Complete
) {
1006 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1007 fbo_incomplete(ctx
, "color attachment incomplete", i
);
1012 /* get width, height, format of the renderbuffer/texture
1014 if (att
->Type
== GL_TEXTURE
) {
1015 const struct gl_texture_image
*texImg
= att
->Renderbuffer
->TexImage
;
1016 att_tex_target
= att
->Texture
->Target
;
1017 minWidth
= MIN2(minWidth
, texImg
->Width
);
1018 maxWidth
= MAX2(maxWidth
, texImg
->Width
);
1019 minHeight
= MIN2(minHeight
, texImg
->Height
);
1020 maxHeight
= MAX2(maxHeight
, texImg
->Height
);
1021 f
= texImg
->_BaseFormat
;
1022 attFormat
= texImg
->TexFormat
;
1025 if (!is_format_color_renderable(ctx
, attFormat
,
1026 texImg
->InternalFormat
) &&
1027 !is_legal_depth_format(ctx
, f
) &&
1028 f
!= GL_STENCIL_INDEX
) {
1029 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT
;
1030 fbo_incomplete(ctx
, "texture attachment incomplete", -1);
1035 numSamples
= texImg
->NumSamples
;
1036 else if (numSamples
!= texImg
->NumSamples
) {
1037 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1038 fbo_incomplete(ctx
, "inconsistent sample count", -1);
1042 if (fixedSampleLocations
< 0)
1043 fixedSampleLocations
= texImg
->FixedSampleLocations
;
1044 else if (fixedSampleLocations
!= texImg
->FixedSampleLocations
) {
1045 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1046 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1050 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
1051 minWidth
= MIN2(minWidth
, att
->Renderbuffer
->Width
);
1052 maxWidth
= MAX2(minWidth
, att
->Renderbuffer
->Width
);
1053 minHeight
= MIN2(minHeight
, att
->Renderbuffer
->Height
);
1054 maxHeight
= MAX2(minHeight
, att
->Renderbuffer
->Height
);
1055 f
= att
->Renderbuffer
->InternalFormat
;
1056 attFormat
= att
->Renderbuffer
->Format
;
1060 numSamples
= att
->Renderbuffer
->NumSamples
;
1061 else if (numSamples
!= att
->Renderbuffer
->NumSamples
) {
1062 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1063 fbo_incomplete(ctx
, "inconsistent sample count", -1);
1067 /* RENDERBUFFER has fixedSampleLocations implicitly true */
1068 if (fixedSampleLocations
< 0)
1069 fixedSampleLocations
= GL_TRUE
;
1070 else if (fixedSampleLocations
!= GL_TRUE
) {
1071 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1072 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1077 assert(att
->Type
== GL_NONE
);
1081 /* check if integer color */
1082 fb
->_IntegerColor
= _mesa_is_format_integer_color(attFormat
);
1084 /* Update _AllColorBuffersFixedPoint and _HasSNormOrFloatColorBuffer. */
1086 GLenum type
= _mesa_get_format_datatype(attFormat
);
1088 fb
->_AllColorBuffersFixedPoint
=
1089 fb
->_AllColorBuffersFixedPoint
&&
1090 (type
== GL_UNSIGNED_NORMALIZED
|| type
== GL_SIGNED_NORMALIZED
);
1092 fb
->_HasSNormOrFloatColorBuffer
=
1093 fb
->_HasSNormOrFloatColorBuffer
||
1094 type
== GL_SIGNED_NORMALIZED
|| type
== GL_FLOAT
;
1097 /* Error-check width, height, format */
1098 if (numImages
== 1) {
1105 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
1106 /* check that width, height, format are same */
1107 if (minWidth
!= maxWidth
|| minHeight
!= maxHeight
) {
1108 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
;
1109 fbo_incomplete(ctx
, "width or height mismatch", -1);
1112 /* check that all color buffers are the same format */
1113 if (intFormat
!= GL_NONE
&& f
!= intFormat
) {
1114 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
1115 fbo_incomplete(ctx
, "format mismatch", -1);
1121 /* Check that the format is valid. (MESA_FORMAT_NONE means unsupported)
1123 if (att
->Type
== GL_RENDERBUFFER
&&
1124 att
->Renderbuffer
->Format
== MESA_FORMAT_NONE
) {
1125 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1126 fbo_incomplete(ctx
, "unsupported renderbuffer format", i
);
1130 /* Check that layered rendering is consistent. */
1132 if (att_tex_target
== GL_TEXTURE_CUBE_MAP
)
1133 att_layer_count
= 6;
1134 else if (att_tex_target
== GL_TEXTURE_1D_ARRAY
)
1135 att_layer_count
= att
->Renderbuffer
->Height
;
1137 att_layer_count
= att
->Renderbuffer
->Depth
;
1139 att_layer_count
= 0;
1141 if (!layer_info_valid
) {
1142 is_layered
= att
->Layered
;
1143 max_layer_count
= att_layer_count
;
1144 layer_tex_target
= att_tex_target
;
1145 layer_info_valid
= true;
1146 } else if (max_layer_count
> 0 && layer_tex_target
!= att_tex_target
) {
1147 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1148 fbo_incomplete(ctx
, "layered framebuffer has mismatched targets", i
);
1150 } else if (is_layered
!= att
->Layered
) {
1151 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1153 "framebuffer attachment layer mode is inconsistent",
1156 } else if (att_layer_count
> max_layer_count
) {
1157 max_layer_count
= att_layer_count
;
1161 * The extension GL_ARB_framebuffer_no_attachments places additional
1162 * requirement on each attachment. Those additional requirements are
1163 * tighter that those of previous versions of GL. In interest of better
1164 * compatibility, we will not enforce these restrictions. For the record
1165 * those additional restrictions are quoted below:
1167 * "The width and height of image are greater than zero and less than or
1168 * equal to the values of the implementation-dependent limits
1169 * MAX_FRAMEBUFFER_WIDTH and MAX_FRAMEBUFFER_HEIGHT, respectively."
1171 * "If <image> is a three-dimensional texture or a one- or two-dimensional
1172 * array texture and the attachment is layered, the depth or layer count
1173 * of the texture is less than or equal to the implementation-dependent
1174 * limit MAX_FRAMEBUFFER_LAYERS."
1176 * "If image has multiple samples, its sample count is less than or equal
1177 * to the value of the implementation-dependent limit
1178 * MAX_FRAMEBUFFER_SAMPLES."
1180 * The same requirements are also in place for GL 4.5,
1181 * Section 9.4.1 "Framebuffer Attachment Completeness", pg 310-311
1185 fb
->MaxNumLayers
= max_layer_count
;
1187 if (numImages
== 0) {
1188 fb
->_HasAttachments
= false;
1190 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
1191 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1192 fbo_incomplete(ctx
, "no attachments", -1);
1196 if (fb
->DefaultGeometry
.Width
== 0 || fb
->DefaultGeometry
.Height
== 0) {
1197 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1198 fbo_incomplete(ctx
, "no attachments and default width or height is 0", -1);
1203 if (_mesa_is_desktop_gl(ctx
) && !ctx
->Extensions
.ARB_ES2_compatibility
) {
1204 /* Check that all DrawBuffers are present */
1205 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
1206 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
1207 const struct gl_renderbuffer_attachment
*att
1208 = get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
]);
1210 if (att
->Type
== GL_NONE
) {
1211 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
1212 fbo_incomplete(ctx
, "missing drawbuffer", j
);
1218 /* Check that the ReadBuffer is present */
1219 if (fb
->ColorReadBuffer
!= GL_NONE
) {
1220 const struct gl_renderbuffer_attachment
*att
1221 = get_attachment(ctx
, fb
, fb
->ColorReadBuffer
);
1223 if (att
->Type
== GL_NONE
) {
1224 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
1225 fbo_incomplete(ctx
, "missing readbuffer", -1);
1231 /* The OpenGL ES3 spec, in chapter 9.4. FRAMEBUFFER COMPLETENESS, says:
1233 * "Depth and stencil attachments, if present, are the same image."
1235 * This restriction is not present in the OpenGL ES2 spec.
1237 if (_mesa_is_gles3(ctx
) &&
1238 has_stencil_attachment
&& has_depth_attachment
&&
1239 !_mesa_has_depthstencil_combined(fb
)) {
1240 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1241 fbo_incomplete(ctx
, "Depth and stencil attachments must be the same image", -1);
1245 /* Provisionally set status = COMPLETE ... */
1246 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
1248 /* ... but the driver may say the FB is incomplete.
1249 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
1252 if (ctx
->Driver
.ValidateFramebuffer
) {
1253 ctx
->Driver
.ValidateFramebuffer(ctx
, fb
);
1254 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1255 fbo_incomplete(ctx
, "driver marked FBO as incomplete", -1);
1261 * Note that if ARB_framebuffer_object is supported and the attached
1262 * renderbuffers/textures are different sizes, the framebuffer
1263 * width/height will be set to the smallest width/height.
1265 if (numImages
!= 0) {
1266 fb
->Width
= minWidth
;
1267 fb
->Height
= minHeight
;
1270 /* finally, update the visual info for the framebuffer */
1271 _mesa_update_framebuffer_visual(ctx
, fb
);
1275 GLboolean GLAPIENTRY
1276 _mesa_IsRenderbuffer(GLuint renderbuffer
)
1278 GET_CURRENT_CONTEXT(ctx
);
1279 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1281 struct gl_renderbuffer
*rb
=
1282 _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1283 if (rb
!= NULL
&& rb
!= &DummyRenderbuffer
)
1290 static struct gl_renderbuffer
*
1291 allocate_renderbuffer_locked(struct gl_context
*ctx
, GLuint renderbuffer
,
1294 struct gl_renderbuffer
*newRb
;
1296 /* create new renderbuffer object */
1297 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
1299 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
1302 assert(newRb
->AllocStorage
);
1303 _mesa_HashInsertLocked(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
1304 newRb
->RefCount
= 1; /* referenced by hash table */
1311 bind_renderbuffer(GLenum target
, GLuint renderbuffer
, bool allow_user_names
)
1313 struct gl_renderbuffer
*newRb
;
1314 GET_CURRENT_CONTEXT(ctx
);
1316 if (target
!= GL_RENDERBUFFER_EXT
) {
1317 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindRenderbufferEXT(target)");
1321 /* No need to flush here since the render buffer binding has no
1322 * effect on rendering state.
1326 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1327 if (newRb
== &DummyRenderbuffer
) {
1328 /* ID was reserved, but no real renderbuffer object made yet */
1331 else if (!newRb
&& !allow_user_names
) {
1332 /* All RB IDs must be Gen'd */
1333 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindRenderbuffer(buffer)");
1338 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
1339 newRb
= allocate_renderbuffer_locked(ctx
, renderbuffer
,
1340 "glBindRenderbufferEXT");
1341 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
1348 assert(newRb
!= &DummyRenderbuffer
);
1350 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
1354 _mesa_BindRenderbuffer(GLenum target
, GLuint renderbuffer
)
1356 GET_CURRENT_CONTEXT(ctx
);
1358 /* OpenGL ES glBindRenderbuffer and glBindRenderbufferOES use this same
1359 * entry point, but they allow the use of user-generated names.
1361 bind_renderbuffer(target
, renderbuffer
, _mesa_is_gles(ctx
));
1365 _mesa_BindRenderbufferEXT(GLenum target
, GLuint renderbuffer
)
1367 /* This function should not be in the dispatch table for core profile /
1368 * OpenGL 3.1, so execution should never get here in those cases -- no
1369 * need for an explicit test.
1371 bind_renderbuffer(target
, renderbuffer
, true);
1375 * ARB_framebuffer_no_attachment - Application passes requested param's
1376 * here. NOTE: NumSamples requested need not be _NumSamples which is
1377 * what the hw supports.
1380 framebuffer_parameteri(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1381 GLenum pname
, GLint param
, const char *func
)
1384 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1385 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferWidth
)
1386 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1388 fb
->DefaultGeometry
.Width
= param
;
1390 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1391 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferHeight
)
1392 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1394 fb
->DefaultGeometry
.Height
= param
;
1396 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1398 * According to the OpenGL ES 3.1 specification section 9.2.1, the
1399 * GL_FRAMEBUFFER_DEFAULT_LAYERS parameter name is not supported.
1401 if (_mesa_is_gles31(ctx
) && !ctx
->Extensions
.OES_geometry_shader
) {
1402 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1405 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferLayers
)
1406 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1408 fb
->DefaultGeometry
.Layers
= param
;
1410 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1411 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferSamples
)
1412 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1414 fb
->DefaultGeometry
.NumSamples
= param
;
1416 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1417 fb
->DefaultGeometry
.FixedSampleLocations
= param
;
1420 _mesa_error(ctx
, GL_INVALID_ENUM
,
1421 "%s(pname=0x%x)", func
, pname
);
1424 invalidate_framebuffer(fb
);
1425 ctx
->NewState
|= _NEW_BUFFERS
;
1429 _mesa_FramebufferParameteri(GLenum target
, GLenum pname
, GLint param
)
1431 GET_CURRENT_CONTEXT(ctx
);
1432 struct gl_framebuffer
*fb
;
1434 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
1435 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1436 "glFramebufferParameteriv not supported "
1437 "(ARB_framebuffer_no_attachments not implemented)");
1441 fb
= get_framebuffer_target(ctx
, target
);
1443 _mesa_error(ctx
, GL_INVALID_ENUM
,
1444 "glFramebufferParameteri(target=0x%x)", target
);
1448 /* check framebuffer binding */
1449 if (_mesa_is_winsys_fbo(fb
)) {
1450 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1451 "glFramebufferParameteri");
1455 framebuffer_parameteri(ctx
, fb
, pname
, param
, "glFramebufferParameteri");
1459 get_framebuffer_parameteriv(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1460 GLenum pname
, GLint
*params
, const char *func
)
1463 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1464 *params
= fb
->DefaultGeometry
.Width
;
1466 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1467 *params
= fb
->DefaultGeometry
.Height
;
1469 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1471 * According to the OpenGL ES 3.1 specification section 9.2.3, the
1472 * GL_FRAMEBUFFER_LAYERS parameter name is not supported.
1474 if (_mesa_is_gles31(ctx
) && !ctx
->Extensions
.OES_geometry_shader
) {
1475 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1478 *params
= fb
->DefaultGeometry
.Layers
;
1480 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1481 *params
= fb
->DefaultGeometry
.NumSamples
;
1483 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1484 *params
= fb
->DefaultGeometry
.FixedSampleLocations
;
1487 _mesa_error(ctx
, GL_INVALID_ENUM
,
1488 "%s(pname=0x%x)", func
, pname
);
1493 _mesa_GetFramebufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
1495 GET_CURRENT_CONTEXT(ctx
);
1496 struct gl_framebuffer
*fb
;
1498 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
1499 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1500 "glGetFramebufferParameteriv not supported "
1501 "(ARB_framebuffer_no_attachments not implemented)");
1505 fb
= get_framebuffer_target(ctx
, target
);
1507 _mesa_error(ctx
, GL_INVALID_ENUM
,
1508 "glGetFramebufferParameteriv(target=0x%x)", target
);
1512 /* check framebuffer binding */
1513 if (_mesa_is_winsys_fbo(fb
)) {
1514 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1515 "glGetFramebufferParameteriv");
1519 get_framebuffer_parameteriv(ctx
, fb
, pname
, params
,
1520 "glGetFramebufferParameteriv");
1525 * Remove the specified renderbuffer or texture from any attachment point in
1529 * \c true if the renderbuffer was detached from an attachment point. \c
1533 _mesa_detach_renderbuffer(struct gl_context
*ctx
,
1534 struct gl_framebuffer
*fb
,
1538 bool progress
= false;
1540 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1541 if (fb
->Attachment
[i
].Texture
== att
1542 || fb
->Attachment
[i
].Renderbuffer
== att
) {
1543 remove_attachment(ctx
, &fb
->Attachment
[i
]);
1548 /* Section 4.4.4 (Framebuffer Completeness), subsection "Whole Framebuffer
1549 * Completeness," of the OpenGL 3.1 spec says:
1551 * "Performing any of the following actions may change whether the
1552 * framebuffer is considered complete or incomplete:
1556 * - Deleting, with DeleteTextures or DeleteRenderbuffers, an object
1557 * containing an image that is attached to a framebuffer object
1558 * that is bound to the framebuffer."
1561 invalidate_framebuffer(fb
);
1568 _mesa_DeleteRenderbuffers(GLsizei n
, const GLuint
*renderbuffers
)
1571 GET_CURRENT_CONTEXT(ctx
);
1574 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteRenderbuffers(n < 0)");
1578 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1580 for (i
= 0; i
< n
; i
++) {
1581 if (renderbuffers
[i
] > 0) {
1582 struct gl_renderbuffer
*rb
;
1583 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
1585 /* check if deleting currently bound renderbuffer object */
1586 if (rb
== ctx
->CurrentRenderbuffer
) {
1588 assert(rb
->RefCount
>= 2);
1589 _mesa_BindRenderbuffer(GL_RENDERBUFFER_EXT
, 0);
1592 /* Section 4.4.2 (Attaching Images to Framebuffer Objects),
1593 * subsection "Attaching Renderbuffer Images to a Framebuffer,"
1594 * of the OpenGL 3.1 spec says:
1596 * "If a renderbuffer object is deleted while its image is
1597 * attached to one or more attachment points in the currently
1598 * bound framebuffer, then it is as if FramebufferRenderbuffer
1599 * had been called, with a renderbuffer of 0, for each
1600 * attachment point to which this image was attached in the
1601 * currently bound framebuffer. In other words, this
1602 * renderbuffer image is first detached from all attachment
1603 * points in the currently bound framebuffer. Note that the
1604 * renderbuffer image is specifically not detached from any
1605 * non-bound framebuffers. Detaching the image from any
1606 * non-bound framebuffers is the responsibility of the
1609 if (_mesa_is_user_fbo(ctx
->DrawBuffer
)) {
1610 _mesa_detach_renderbuffer(ctx
, ctx
->DrawBuffer
, rb
);
1612 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)
1613 && ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
1614 _mesa_detach_renderbuffer(ctx
, ctx
->ReadBuffer
, rb
);
1617 /* Remove from hash table immediately, to free the ID.
1618 * But the object will not be freed until it's no longer
1619 * referenced anywhere else.
1621 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
1623 if (rb
!= &DummyRenderbuffer
) {
1624 /* no longer referenced by hash table */
1625 _mesa_reference_renderbuffer(&rb
, NULL
);
1633 create_render_buffers(struct gl_context
*ctx
, GLsizei n
, GLuint
*renderbuffers
,
1636 const char *func
= dsa
? "glCreateRenderbuffers" : "glGenRenderbuffers";
1641 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n<0)", func
);
1648 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
1650 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
1652 for (i
= 0; i
< n
; i
++) {
1653 GLuint name
= first
+ i
;
1654 renderbuffers
[i
] = name
;
1657 allocate_renderbuffer_locked(ctx
, name
, func
);
1659 /* insert a dummy renderbuffer into the hash table */
1660 _mesa_HashInsertLocked(ctx
->Shared
->RenderBuffers
, name
,
1661 &DummyRenderbuffer
);
1665 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
1670 _mesa_GenRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1672 GET_CURRENT_CONTEXT(ctx
);
1673 create_render_buffers(ctx
, n
, renderbuffers
, false);
1678 _mesa_CreateRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1680 GET_CURRENT_CONTEXT(ctx
);
1681 create_render_buffers(ctx
, n
, renderbuffers
, true);
1686 * Given an internal format token for a render buffer, return the
1687 * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
1688 * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,
1689 * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).
1691 * This is similar to _mesa_base_tex_format() but the set of valid
1692 * internal formats is different.
1694 * Note that even if a format is determined to be legal here, validation
1695 * of the FBO may fail if the format is not supported by the driver/GPU.
1697 * \param internalFormat as passed to glRenderbufferStorage()
1698 * \return the base internal format, or 0 if internalFormat is illegal
1701 _mesa_base_fbo_format(struct gl_context
*ctx
, GLenum internalFormat
)
1704 * Notes: some formats such as alpha, luminance, etc. were added
1705 * with GL_ARB_framebuffer_object.
1707 switch (internalFormat
) {
1713 return (ctx
->API
== API_OPENGL_COMPAT
&&
1714 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_ALPHA
: 0;
1718 case GL_LUMINANCE12
:
1719 case GL_LUMINANCE16
:
1720 return (ctx
->API
== API_OPENGL_COMPAT
&&
1721 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE
: 0;
1722 case GL_LUMINANCE_ALPHA
:
1723 case GL_LUMINANCE4_ALPHA4
:
1724 case GL_LUMINANCE6_ALPHA2
:
1725 case GL_LUMINANCE8_ALPHA8
:
1726 case GL_LUMINANCE12_ALPHA4
:
1727 case GL_LUMINANCE12_ALPHA12
:
1728 case GL_LUMINANCE16_ALPHA16
:
1729 return (ctx
->API
== API_OPENGL_COMPAT
&&
1730 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE_ALPHA
: 0;
1734 case GL_INTENSITY12
:
1735 case GL_INTENSITY16
:
1736 return (ctx
->API
== API_OPENGL_COMPAT
&&
1737 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_INTENSITY
: 0;
1747 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
1749 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
1758 return _mesa_is_desktop_gl(ctx
) ? GL_RGBA
: 0;
1760 case GL_SRGB8_ALPHA8_EXT
:
1761 return _mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
1762 case GL_STENCIL_INDEX
:
1763 case GL_STENCIL_INDEX1_EXT
:
1764 case GL_STENCIL_INDEX4_EXT
:
1765 case GL_STENCIL_INDEX16_EXT
:
1766 /* There are extensions for GL_STENCIL_INDEX1 and GL_STENCIL_INDEX4 in
1767 * OpenGL ES, but Mesa does not currently support them.
1769 return _mesa_is_desktop_gl(ctx
) ? GL_STENCIL_INDEX
: 0;
1770 case GL_STENCIL_INDEX8_EXT
:
1771 return GL_STENCIL_INDEX
;
1772 case GL_DEPTH_COMPONENT
:
1773 case GL_DEPTH_COMPONENT32
:
1774 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_COMPONENT
: 0;
1775 case GL_DEPTH_COMPONENT16
:
1776 case GL_DEPTH_COMPONENT24
:
1777 return GL_DEPTH_COMPONENT
;
1778 case GL_DEPTH_STENCIL
:
1779 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_STENCIL
: 0;
1780 case GL_DEPTH24_STENCIL8
:
1781 return GL_DEPTH_STENCIL
;
1782 case GL_DEPTH_COMPONENT32F
:
1783 return ctx
->Version
>= 30
1784 || (ctx
->API
== API_OPENGL_COMPAT
&&
1785 ctx
->Extensions
.ARB_depth_buffer_float
)
1786 ? GL_DEPTH_COMPONENT
: 0;
1787 case GL_DEPTH32F_STENCIL8
:
1788 return ctx
->Version
>= 30
1789 || (ctx
->API
== API_OPENGL_COMPAT
&&
1790 ctx
->Extensions
.ARB_depth_buffer_float
)
1791 ? GL_DEPTH_STENCIL
: 0;
1794 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_rg
1797 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
1801 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_rg
1804 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
1806 /* signed normalized texture formats */
1810 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1815 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1819 case GL_RGB16_SNORM
:
1820 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1823 case GL_RGBA8_SNORM
:
1824 case GL_RGBA16_SNORM
:
1825 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1827 case GL_ALPHA_SNORM
:
1828 case GL_ALPHA8_SNORM
:
1829 case GL_ALPHA16_SNORM
:
1830 return ctx
->API
== API_OPENGL_COMPAT
&&
1831 ctx
->Extensions
.EXT_texture_snorm
&&
1832 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1833 case GL_LUMINANCE_SNORM
:
1834 case GL_LUMINANCE8_SNORM
:
1835 case GL_LUMINANCE16_SNORM
:
1836 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1838 case GL_LUMINANCE_ALPHA_SNORM
:
1839 case GL_LUMINANCE8_ALPHA8_SNORM
:
1840 case GL_LUMINANCE16_ALPHA16_SNORM
:
1841 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1842 ? GL_LUMINANCE_ALPHA
: 0;
1843 case GL_INTENSITY_SNORM
:
1844 case GL_INTENSITY8_SNORM
:
1845 case GL_INTENSITY16_SNORM
:
1846 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1851 return ((_mesa_is_desktop_gl(ctx
) &&
1852 ctx
->Extensions
.ARB_texture_rg
&&
1853 ctx
->Extensions
.ARB_texture_float
) ||
1854 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1858 return ((_mesa_is_desktop_gl(ctx
) &&
1859 ctx
->Extensions
.ARB_texture_rg
&&
1860 ctx
->Extensions
.ARB_texture_float
) ||
1861 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1865 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_float
)
1869 return ((_mesa_is_desktop_gl(ctx
) &&
1870 ctx
->Extensions
.ARB_texture_float
) ||
1871 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1873 case GL_ALPHA16F_ARB
:
1874 case GL_ALPHA32F_ARB
:
1875 return ctx
->API
== API_OPENGL_COMPAT
&&
1876 ctx
->Extensions
.ARB_texture_float
&&
1877 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1878 case GL_LUMINANCE16F_ARB
:
1879 case GL_LUMINANCE32F_ARB
:
1880 return ctx
->API
== API_OPENGL_COMPAT
&&
1881 ctx
->Extensions
.ARB_texture_float
&&
1882 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
1883 case GL_LUMINANCE_ALPHA16F_ARB
:
1884 case GL_LUMINANCE_ALPHA32F_ARB
:
1885 return ctx
->API
== API_OPENGL_COMPAT
&&
1886 ctx
->Extensions
.ARB_texture_float
&&
1887 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
1888 case GL_INTENSITY16F_ARB
:
1889 case GL_INTENSITY32F_ARB
:
1890 return ctx
->API
== API_OPENGL_COMPAT
&&
1891 ctx
->Extensions
.ARB_texture_float
&&
1892 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
1893 case GL_R11F_G11F_B10F
:
1894 return ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_packed_float
) ||
1895 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1898 case GL_RGBA8UI_EXT
:
1899 case GL_RGBA16UI_EXT
:
1900 case GL_RGBA32UI_EXT
:
1902 case GL_RGBA16I_EXT
:
1903 case GL_RGBA32I_EXT
:
1904 return ctx
->Version
>= 30
1905 || (_mesa_is_desktop_gl(ctx
) &&
1906 ctx
->Extensions
.EXT_texture_integer
) ? GL_RGBA
: 0;
1909 case GL_RGB16UI_EXT
:
1910 case GL_RGB32UI_EXT
:
1914 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_integer
1922 return ctx
->Version
>= 30
1923 || (_mesa_is_desktop_gl(ctx
) &&
1924 ctx
->Extensions
.ARB_texture_rg
&&
1925 ctx
->Extensions
.EXT_texture_integer
) ? GL_RED
: 0;
1933 return ctx
->Version
>= 30
1934 || (_mesa_is_desktop_gl(ctx
) &&
1935 ctx
->Extensions
.ARB_texture_rg
&&
1936 ctx
->Extensions
.EXT_texture_integer
) ? GL_RG
: 0;
1938 case GL_INTENSITY8I_EXT
:
1939 case GL_INTENSITY8UI_EXT
:
1940 case GL_INTENSITY16I_EXT
:
1941 case GL_INTENSITY16UI_EXT
:
1942 case GL_INTENSITY32I_EXT
:
1943 case GL_INTENSITY32UI_EXT
:
1944 return ctx
->API
== API_OPENGL_COMPAT
&&
1945 ctx
->Extensions
.EXT_texture_integer
&&
1946 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
1948 case GL_LUMINANCE8I_EXT
:
1949 case GL_LUMINANCE8UI_EXT
:
1950 case GL_LUMINANCE16I_EXT
:
1951 case GL_LUMINANCE16UI_EXT
:
1952 case GL_LUMINANCE32I_EXT
:
1953 case GL_LUMINANCE32UI_EXT
:
1954 return ctx
->API
== API_OPENGL_COMPAT
&&
1955 ctx
->Extensions
.EXT_texture_integer
&&
1956 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
1958 case GL_LUMINANCE_ALPHA8I_EXT
:
1959 case GL_LUMINANCE_ALPHA8UI_EXT
:
1960 case GL_LUMINANCE_ALPHA16I_EXT
:
1961 case GL_LUMINANCE_ALPHA16UI_EXT
:
1962 case GL_LUMINANCE_ALPHA32I_EXT
:
1963 case GL_LUMINANCE_ALPHA32UI_EXT
:
1964 return ctx
->API
== API_OPENGL_COMPAT
&&
1965 ctx
->Extensions
.EXT_texture_integer
&&
1966 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
1968 case GL_ALPHA8I_EXT
:
1969 case GL_ALPHA8UI_EXT
:
1970 case GL_ALPHA16I_EXT
:
1971 case GL_ALPHA16UI_EXT
:
1972 case GL_ALPHA32I_EXT
:
1973 case GL_ALPHA32UI_EXT
:
1974 return ctx
->API
== API_OPENGL_COMPAT
&&
1975 ctx
->Extensions
.EXT_texture_integer
&&
1976 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1979 return (_mesa_is_desktop_gl(ctx
) &&
1980 ctx
->Extensions
.ARB_texture_rgb10_a2ui
)
1981 || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
1984 return _mesa_is_gles(ctx
) || ctx
->Extensions
.ARB_ES2_compatibility
1993 * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk().
1996 invalidate_rb(GLuint key
, void *data
, void *userData
)
1998 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
1999 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) userData
;
2001 /* If this is a user-created FBO */
2002 if (_mesa_is_user_fbo(fb
)) {
2004 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2005 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2006 if (att
->Type
== GL_RENDERBUFFER
&&
2007 att
->Renderbuffer
== rb
) {
2008 /* Mark fb status as indeterminate to force re-validation */
2017 /** sentinal value, see below */
2018 #define NO_SAMPLES 1000
2021 _mesa_renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2022 GLenum internalFormat
, GLsizei width
,
2023 GLsizei height
, GLsizei samples
)
2025 const GLenum baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
2027 assert(baseFormat
!= 0);
2028 assert(width
>= 0 && width
<= (GLsizei
) ctx
->Const
.MaxRenderbufferSize
);
2029 assert(height
>= 0 && height
<= (GLsizei
) ctx
->Const
.MaxRenderbufferSize
);
2030 assert(samples
!= NO_SAMPLES
);
2032 assert(samples
> 0);
2033 assert(_mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
2034 internalFormat
, samples
) == GL_NO_ERROR
);
2037 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2039 if (rb
->InternalFormat
== internalFormat
&&
2040 rb
->Width
== (GLuint
) width
&&
2041 rb
->Height
== (GLuint
) height
&&
2042 rb
->NumSamples
== samples
) {
2043 /* no change in allocation needed */
2047 /* These MUST get set by the AllocStorage func */
2048 rb
->Format
= MESA_FORMAT_NONE
;
2049 rb
->NumSamples
= samples
;
2051 /* Now allocate the storage */
2052 assert(rb
->AllocStorage
);
2053 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
2054 /* No error - check/set fields now */
2055 /* If rb->Format == MESA_FORMAT_NONE, the format is unsupported. */
2056 assert(rb
->Width
== (GLuint
) width
);
2057 assert(rb
->Height
== (GLuint
) height
);
2058 rb
->InternalFormat
= internalFormat
;
2059 rb
->_BaseFormat
= baseFormat
;
2060 assert(rb
->_BaseFormat
!= 0);
2063 /* Probably ran out of memory - clear the fields */
2066 rb
->Format
= MESA_FORMAT_NONE
;
2067 rb
->InternalFormat
= GL_NONE
;
2068 rb
->_BaseFormat
= GL_NONE
;
2072 /* Invalidate the framebuffers the renderbuffer is attached in. */
2073 if (rb
->AttachedAnytime
) {
2074 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, invalidate_rb
, rb
);
2079 * Helper function used by renderbuffer_storage_direct() and
2080 * renderbuffer_storage_target().
2081 * samples will be NO_SAMPLES if called by a non-multisample function.
2084 renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2085 GLenum internalFormat
, GLsizei width
,
2086 GLsizei height
, GLsizei samples
, const char *func
)
2089 GLenum sample_count_error
;
2091 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
2092 if (baseFormat
== 0) {
2093 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalFormat=%s)",
2094 func
, _mesa_enum_to_string(internalFormat
));
2098 if (width
< 0 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2099 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid width %d)", func
,
2104 if (height
< 0 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2105 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid height %d)", func
,
2110 if (samples
== NO_SAMPLES
) {
2111 /* NumSamples == 0 indicates non-multisampling */
2115 /* check the sample count;
2116 * note: driver may choose to use more samples than what's requested
2118 sample_count_error
= _mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
2119 internalFormat
, samples
);
2121 /* Section 2.5 (GL Errors) of OpenGL 3.0 specification, page 16:
2123 * "If a negative number is provided where an argument of type sizei or
2124 * sizeiptr is specified, the error INVALID VALUE is generated."
2127 sample_count_error
= GL_INVALID_VALUE
;
2130 if (sample_count_error
!= GL_NO_ERROR
) {
2131 _mesa_error(ctx
, sample_count_error
, "%s(samples)", func
);
2136 _mesa_renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
);
2140 * Helper function used by _mesa_NamedRenderbufferStorage*().
2141 * samples will be NO_SAMPLES if called by a non-multisample function.
2144 renderbuffer_storage_named(GLuint renderbuffer
, GLenum internalFormat
,
2145 GLsizei width
, GLsizei height
, GLsizei samples
,
2148 GET_CURRENT_CONTEXT(ctx
);
2150 if (MESA_VERBOSE
& VERBOSE_API
) {
2151 if (samples
== NO_SAMPLES
)
2152 _mesa_debug(ctx
, "%s(%u, %s, %d, %d)\n",
2154 _mesa_enum_to_string(internalFormat
),
2157 _mesa_debug(ctx
, "%s(%u, %s, %d, %d, %d)\n",
2159 _mesa_enum_to_string(internalFormat
),
2160 width
, height
, samples
);
2163 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2164 if (!rb
|| rb
== &DummyRenderbuffer
) {
2165 /* ID was reserved, but no real renderbuffer object made yet */
2166 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid renderbuffer %u)",
2167 func
, renderbuffer
);
2171 renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
, func
);
2175 * Helper function used by _mesa_RenderbufferStorage() and
2176 * _mesa_RenderbufferStorageMultisample().
2177 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorage().
2180 renderbuffer_storage_target(GLenum target
, GLenum internalFormat
,
2181 GLsizei width
, GLsizei height
, GLsizei samples
,
2184 GET_CURRENT_CONTEXT(ctx
);
2186 if (MESA_VERBOSE
& VERBOSE_API
) {
2187 if (samples
== NO_SAMPLES
)
2188 _mesa_debug(ctx
, "%s(%s, %s, %d, %d)\n",
2190 _mesa_enum_to_string(target
),
2191 _mesa_enum_to_string(internalFormat
),
2194 _mesa_debug(ctx
, "%s(%s, %s, %d, %d, %d)\n",
2196 _mesa_enum_to_string(target
),
2197 _mesa_enum_to_string(internalFormat
),
2198 width
, height
, samples
);
2201 if (target
!= GL_RENDERBUFFER_EXT
) {
2202 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
2206 if (!ctx
->CurrentRenderbuffer
) {
2207 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(no renderbuffer bound)",
2212 renderbuffer_storage(ctx
, ctx
->CurrentRenderbuffer
, internalFormat
, width
,
2213 height
, samples
, func
);
2218 _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target
, GLeglImageOES image
)
2220 struct gl_renderbuffer
*rb
;
2221 GET_CURRENT_CONTEXT(ctx
);
2223 if (!ctx
->Extensions
.OES_EGL_image
) {
2224 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2225 "glEGLImageTargetRenderbufferStorageOES(unsupported)");
2229 if (target
!= GL_RENDERBUFFER
) {
2230 _mesa_error(ctx
, GL_INVALID_ENUM
,
2231 "EGLImageTargetRenderbufferStorageOES");
2235 rb
= ctx
->CurrentRenderbuffer
;
2237 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2238 "EGLImageTargetRenderbufferStorageOES");
2242 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2244 ctx
->Driver
.EGLImageTargetRenderbufferStorage(ctx
, rb
, image
);
2249 * Helper function for _mesa_GetRenderbufferParameteriv() and
2250 * _mesa_GetFramebufferAttachmentParameteriv()
2251 * We have to be careful to respect the base format. For example, if a
2252 * renderbuffer/texture was created with internalFormat=GL_RGB but the
2253 * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
2254 * we need to return zero.
2257 get_component_bits(GLenum pname
, GLenum baseFormat
, mesa_format format
)
2259 if (_mesa_base_format_has_channel(baseFormat
, pname
))
2260 return _mesa_get_format_bits(format
, pname
);
2268 _mesa_RenderbufferStorage(GLenum target
, GLenum internalFormat
,
2269 GLsizei width
, GLsizei height
)
2271 /* GL_ARB_fbo says calling this function is equivalent to calling
2272 * glRenderbufferStorageMultisample() with samples=0. We pass in
2273 * a token value here just for error reporting purposes.
2275 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2276 NO_SAMPLES
, "glRenderbufferStorage");
2281 _mesa_RenderbufferStorageMultisample(GLenum target
, GLsizei samples
,
2282 GLenum internalFormat
,
2283 GLsizei width
, GLsizei height
)
2285 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2286 samples
, "glRenderbufferStorageMultisample");
2291 * OpenGL ES version of glRenderBufferStorage.
2294 _es_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
2295 GLsizei width
, GLsizei height
)
2297 switch (internalFormat
) {
2299 /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
2300 /* choose a closest format */
2301 internalFormat
= GL_RGB5
;
2307 renderbuffer_storage_target(target
, internalFormat
, width
, height
, 0,
2308 "glRenderbufferStorageEXT");
2312 _mesa_NamedRenderbufferStorage(GLuint renderbuffer
, GLenum internalformat
,
2313 GLsizei width
, GLsizei height
)
2315 /* GL_ARB_fbo says calling this function is equivalent to calling
2316 * glRenderbufferStorageMultisample() with samples=0. We pass in
2317 * a token value here just for error reporting purposes.
2319 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2320 NO_SAMPLES
, "glNamedRenderbufferStorage");
2324 _mesa_NamedRenderbufferStorageMultisample(GLuint renderbuffer
, GLsizei samples
,
2325 GLenum internalformat
,
2326 GLsizei width
, GLsizei height
)
2328 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2330 "glNamedRenderbufferStorageMultisample");
2335 get_render_buffer_parameteriv(struct gl_context
*ctx
,
2336 struct gl_renderbuffer
*rb
, GLenum pname
,
2337 GLint
*params
, const char *func
)
2339 /* No need to flush here since we're just quering state which is
2340 * not effected by rendering.
2344 case GL_RENDERBUFFER_WIDTH_EXT
:
2345 *params
= rb
->Width
;
2347 case GL_RENDERBUFFER_HEIGHT_EXT
:
2348 *params
= rb
->Height
;
2350 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
2351 *params
= rb
->InternalFormat
;
2353 case GL_RENDERBUFFER_RED_SIZE_EXT
:
2354 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
2355 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
2356 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
2357 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
2358 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
2359 *params
= get_component_bits(pname
, rb
->_BaseFormat
, rb
->Format
);
2361 case GL_RENDERBUFFER_SAMPLES
:
2362 if ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_framebuffer_object
)
2363 || _mesa_is_gles3(ctx
)) {
2364 *params
= rb
->NumSamples
;
2369 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname=%s)", func
,
2370 _mesa_enum_to_string(pname
));
2377 _mesa_GetRenderbufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
2379 GET_CURRENT_CONTEXT(ctx
);
2381 if (target
!= GL_RENDERBUFFER_EXT
) {
2382 _mesa_error(ctx
, GL_INVALID_ENUM
,
2383 "glGetRenderbufferParameterivEXT(target)");
2387 if (!ctx
->CurrentRenderbuffer
) {
2388 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetRenderbufferParameterivEXT"
2389 "(no renderbuffer bound)");
2393 get_render_buffer_parameteriv(ctx
, ctx
->CurrentRenderbuffer
, pname
,
2394 params
, "glGetRenderbufferParameteriv");
2399 _mesa_GetNamedRenderbufferParameteriv(GLuint renderbuffer
, GLenum pname
,
2402 GET_CURRENT_CONTEXT(ctx
);
2404 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2405 if (!rb
|| rb
== &DummyRenderbuffer
) {
2406 /* ID was reserved, but no real renderbuffer object made yet */
2407 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetNamedRenderbufferParameteriv"
2408 "(invalid renderbuffer %i)", renderbuffer
);
2412 get_render_buffer_parameteriv(ctx
, rb
, pname
, params
,
2413 "glGetNamedRenderbufferParameteriv");
2417 GLboolean GLAPIENTRY
2418 _mesa_IsFramebuffer(GLuint framebuffer
)
2420 GET_CURRENT_CONTEXT(ctx
);
2421 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
2423 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2424 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
2432 * Check if any of the attachments of the given framebuffer are textures
2433 * (render to texture). Call ctx->Driver.RenderTexture() for such
2437 check_begin_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2440 assert(ctx
->Driver
.RenderTexture
);
2442 if (_mesa_is_winsys_fbo(fb
))
2443 return; /* can't render to texture with winsys framebuffers */
2445 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2446 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2447 if (att
->Texture
&& att
->Renderbuffer
->TexImage
2448 && driver_RenderTexture_is_safe(att
)) {
2449 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
2456 * Examine all the framebuffer's attachments to see if any are textures.
2457 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
2458 * notify the device driver that the texture image may have changed.
2461 check_end_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2463 /* Skip if we know NeedsFinishRenderTexture won't be set. */
2464 if (_mesa_is_winsys_fbo(fb
) && !ctx
->Driver
.BindRenderbufferTexImage
)
2467 if (ctx
->Driver
.FinishRenderTexture
) {
2469 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2470 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2471 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
2472 if (rb
&& rb
->NeedsFinishRenderTexture
) {
2473 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
2481 bind_framebuffer(GLenum target
, GLuint framebuffer
, bool allow_user_names
)
2483 struct gl_framebuffer
*newDrawFb
, *newReadFb
;
2484 GLboolean bindReadBuf
, bindDrawBuf
;
2485 GET_CURRENT_CONTEXT(ctx
);
2488 case GL_DRAW_FRAMEBUFFER_EXT
:
2489 bindDrawBuf
= GL_TRUE
;
2490 bindReadBuf
= GL_FALSE
;
2492 case GL_READ_FRAMEBUFFER_EXT
:
2493 bindDrawBuf
= GL_FALSE
;
2494 bindReadBuf
= GL_TRUE
;
2496 case GL_FRAMEBUFFER_EXT
:
2497 bindDrawBuf
= GL_TRUE
;
2498 bindReadBuf
= GL_TRUE
;
2501 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
2506 /* Binding a user-created framebuffer object */
2507 newDrawFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2508 if (newDrawFb
== &DummyFramebuffer
) {
2509 /* ID was reserved, but no real framebuffer object made yet */
2512 else if (!newDrawFb
&& !allow_user_names
) {
2513 /* All FBO IDs must be Gen'd */
2514 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindFramebuffer(buffer)");
2519 /* create new framebuffer object */
2520 newDrawFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
2522 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
2525 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newDrawFb
);
2527 newReadFb
= newDrawFb
;
2530 /* Binding the window system framebuffer (which was originally set
2531 * with MakeCurrent).
2533 newDrawFb
= ctx
->WinSysDrawBuffer
;
2534 newReadFb
= ctx
->WinSysReadBuffer
;
2537 _mesa_bind_framebuffers(ctx
,
2538 bindDrawBuf
? newDrawFb
: ctx
->DrawBuffer
,
2539 bindReadBuf
? newReadFb
: ctx
->ReadBuffer
);
2543 _mesa_bind_framebuffers(struct gl_context
*ctx
,
2544 struct gl_framebuffer
*newDrawFb
,
2545 struct gl_framebuffer
*newReadFb
)
2547 struct gl_framebuffer
*const oldDrawFb
= ctx
->DrawBuffer
;
2548 struct gl_framebuffer
*const oldReadFb
= ctx
->ReadBuffer
;
2549 const bool bindDrawBuf
= oldDrawFb
!= newDrawFb
;
2550 const bool bindReadBuf
= oldReadFb
!= newReadFb
;
2553 assert(newDrawFb
!= &DummyFramebuffer
);
2556 * OK, now bind the new Draw/Read framebuffers, if they're changing.
2558 * We also check if we're beginning and/or ending render-to-texture.
2559 * When a framebuffer with texture attachments is unbound, call
2560 * ctx->Driver.FinishRenderTexture().
2561 * When a framebuffer with texture attachments is bound, call
2562 * ctx->Driver.RenderTexture().
2564 * Note that if the ReadBuffer has texture attachments we don't consider
2565 * that a render-to-texture case.
2568 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2570 /* check if old readbuffer was render-to-texture */
2571 check_end_texture_render(ctx
, oldReadFb
);
2573 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newReadFb
);
2577 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2579 /* check if old framebuffer had any texture attachments */
2581 check_end_texture_render(ctx
, oldDrawFb
);
2583 /* check if newly bound framebuffer has any texture attachments */
2584 check_begin_texture_render(ctx
, newDrawFb
);
2586 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newDrawFb
);
2589 if ((bindDrawBuf
|| bindReadBuf
) && ctx
->Driver
.BindFramebuffer
) {
2590 /* The few classic drivers that actually hook this function really only
2591 * want to know if the draw framebuffer changed.
2593 ctx
->Driver
.BindFramebuffer(ctx
,
2594 bindDrawBuf
? GL_FRAMEBUFFER
: GL_READ_FRAMEBUFFER
,
2595 newDrawFb
, newReadFb
);
2600 _mesa_BindFramebuffer(GLenum target
, GLuint framebuffer
)
2602 GET_CURRENT_CONTEXT(ctx
);
2604 /* OpenGL ES glBindFramebuffer and glBindFramebufferOES use this same entry
2605 * point, but they allow the use of user-generated names.
2607 bind_framebuffer(target
, framebuffer
, _mesa_is_gles(ctx
));
2612 _mesa_BindFramebufferEXT(GLenum target
, GLuint framebuffer
)
2614 /* This function should not be in the dispatch table for core profile /
2615 * OpenGL 3.1, so execution should never get here in those cases -- no
2616 * need for an explicit test.
2618 bind_framebuffer(target
, framebuffer
, true);
2623 _mesa_DeleteFramebuffers(GLsizei n
, const GLuint
*framebuffers
)
2626 GET_CURRENT_CONTEXT(ctx
);
2629 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteFramebuffers(n < 0)");
2633 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2635 for (i
= 0; i
< n
; i
++) {
2636 if (framebuffers
[i
] > 0) {
2637 struct gl_framebuffer
*fb
;
2638 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
2640 assert(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
2642 /* check if deleting currently bound framebuffer object */
2643 if (fb
== ctx
->DrawBuffer
) {
2645 assert(fb
->RefCount
>= 2);
2646 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, 0);
2648 if (fb
== ctx
->ReadBuffer
) {
2650 assert(fb
->RefCount
>= 2);
2651 _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER
, 0);
2654 /* remove from hash table immediately, to free the ID */
2655 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
2657 if (fb
!= &DummyFramebuffer
) {
2658 /* But the object will not be freed until it's no longer
2659 * bound in any context.
2661 _mesa_reference_framebuffer(&fb
, NULL
);
2670 * This is the implementation for glGenFramebuffers and glCreateFramebuffers.
2671 * It is not exposed to the rest of Mesa to encourage the use of
2672 * nameless buffers in driver internals.
2675 create_framebuffers(GLsizei n
, GLuint
*framebuffers
, bool dsa
)
2677 GET_CURRENT_CONTEXT(ctx
);
2680 struct gl_framebuffer
*fb
;
2682 const char *func
= dsa
? "glCreateFramebuffers" : "glGenFramebuffers";
2685 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n < 0)", func
);
2692 _mesa_HashLockMutex(ctx
->Shared
->FrameBuffers
);
2694 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
2696 for (i
= 0; i
< n
; i
++) {
2697 GLuint name
= first
+ i
;
2698 framebuffers
[i
] = name
;
2701 fb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffers
[i
]);
2703 _mesa_HashUnlockMutex(ctx
->Shared
->FrameBuffers
);
2704 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
2709 fb
= &DummyFramebuffer
;
2711 _mesa_HashInsertLocked(ctx
->Shared
->FrameBuffers
, name
, fb
);
2714 _mesa_HashUnlockMutex(ctx
->Shared
->FrameBuffers
);
2719 _mesa_GenFramebuffers(GLsizei n
, GLuint
*framebuffers
)
2721 create_framebuffers(n
, framebuffers
, false);
2726 _mesa_CreateFramebuffers(GLsizei n
, GLuint
*framebuffers
)
2728 create_framebuffers(n
, framebuffers
, true);
2733 _mesa_check_framebuffer_status(struct gl_context
*ctx
,
2734 struct gl_framebuffer
*buffer
)
2736 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
2738 if (_mesa_is_winsys_fbo(buffer
)) {
2739 /* EGL_KHR_surfaceless_context allows the winsys FBO to be incomplete. */
2740 if (buffer
!= &IncompleteFramebuffer
) {
2741 return GL_FRAMEBUFFER_COMPLETE_EXT
;
2743 return GL_FRAMEBUFFER_UNDEFINED
;
2747 /* No need to flush here */
2749 if (buffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE
) {
2750 _mesa_test_framebuffer_completeness(ctx
, buffer
);
2753 return buffer
->_Status
;
2758 _mesa_CheckFramebufferStatus(GLenum target
)
2760 struct gl_framebuffer
*fb
;
2761 GET_CURRENT_CONTEXT(ctx
);
2763 if (MESA_VERBOSE
& VERBOSE_API
)
2764 _mesa_debug(ctx
, "glCheckFramebufferStatus(%s)\n",
2765 _mesa_enum_to_string(target
));
2767 fb
= get_framebuffer_target(ctx
, target
);
2769 _mesa_error(ctx
, GL_INVALID_ENUM
,
2770 "glCheckFramebufferStatus(invalid target %s)",
2771 _mesa_enum_to_string(target
));
2775 return _mesa_check_framebuffer_status(ctx
, fb
);
2780 _mesa_CheckNamedFramebufferStatus(GLuint framebuffer
, GLenum target
)
2782 struct gl_framebuffer
*fb
;
2783 GET_CURRENT_CONTEXT(ctx
);
2785 /* Validate the target (for conformance's sake) and grab a reference to the
2786 * default framebuffer in case framebuffer = 0.
2787 * Section 9.4 Framebuffer Completeness of the OpenGL 4.5 core spec
2788 * (30.10.2014, PDF page 336) says:
2789 * "If framebuffer is zero, then the status of the default read or
2790 * draw framebuffer (as determined by target) is returned."
2793 case GL_DRAW_FRAMEBUFFER
:
2794 case GL_FRAMEBUFFER
:
2795 fb
= ctx
->WinSysDrawBuffer
;
2797 case GL_READ_FRAMEBUFFER
:
2798 fb
= ctx
->WinSysReadBuffer
;
2801 _mesa_error(ctx
, GL_INVALID_ENUM
,
2802 "glCheckNamedFramebufferStatus(invalid target %s)",
2803 _mesa_enum_to_string(target
));
2808 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
2809 "glCheckNamedFramebufferStatus");
2814 return _mesa_check_framebuffer_status(ctx
, fb
);
2819 * Replicate the src attachment point. Used by framebuffer_texture() when
2820 * the same texture is attached at GL_DEPTH_ATTACHMENT and
2821 * GL_STENCIL_ATTACHMENT.
2824 reuse_framebuffer_texture_attachment(struct gl_framebuffer
*fb
,
2825 gl_buffer_index dst
,
2826 gl_buffer_index src
)
2828 struct gl_renderbuffer_attachment
*dst_att
= &fb
->Attachment
[dst
];
2829 struct gl_renderbuffer_attachment
*src_att
= &fb
->Attachment
[src
];
2831 assert(src_att
->Texture
!= NULL
);
2832 assert(src_att
->Renderbuffer
!= NULL
);
2834 _mesa_reference_texobj(&dst_att
->Texture
, src_att
->Texture
);
2835 _mesa_reference_renderbuffer(&dst_att
->Renderbuffer
, src_att
->Renderbuffer
);
2836 dst_att
->Type
= src_att
->Type
;
2837 dst_att
->Complete
= src_att
->Complete
;
2838 dst_att
->TextureLevel
= src_att
->TextureLevel
;
2839 dst_att
->Zoffset
= src_att
->Zoffset
;
2840 dst_att
->Layered
= src_att
->Layered
;
2845 * Common code called by gl*FramebufferTexture*() to retrieve the correct
2846 * texture object pointer.
2848 * \param texObj where the pointer to the texture object is returned. Note
2849 * that a successful call may return texObj = NULL.
2851 * \return true if no errors, false if errors
2854 get_texture_for_framebuffer(struct gl_context
*ctx
, GLuint texture
,
2855 bool layered
, const char *caller
,
2856 struct gl_texture_object
**texObj
)
2858 *texObj
= NULL
; /* This will get returned if texture = 0. */
2863 *texObj
= _mesa_lookup_texture(ctx
, texture
);
2864 if (*texObj
== NULL
|| (*texObj
)->Target
== 0) {
2865 /* Can't render to a non-existent texture object.
2867 * The OpenGL 4.5 core spec (02.02.2015) in Section 9.2 Binding and
2868 * Managing Framebuffer Objects specifies a different error
2869 * depending upon the calling function (PDF pages 325-328).
2870 * *FramebufferTexture (where layered = GL_TRUE) throws invalid
2871 * value, while the other commands throw invalid operation (where
2872 * layered = GL_FALSE).
2874 const GLenum error
= layered
? GL_INVALID_VALUE
:
2875 GL_INVALID_OPERATION
;
2876 _mesa_error(ctx
, error
,
2877 "%s(non-existent texture %u)", caller
, texture
);
2886 * Common code called by gl*FramebufferTexture() to verify the texture target
2887 * and decide whether or not the attachment should truly be considered
2890 * \param layered true if attachment should be considered layered, false if
2893 * \return true if no errors, false if errors
2896 check_layered_texture_target(struct gl_context
*ctx
, GLenum target
,
2897 const char *caller
, GLboolean
*layered
)
2903 case GL_TEXTURE_1D_ARRAY_EXT
:
2904 case GL_TEXTURE_2D_ARRAY_EXT
:
2905 case GL_TEXTURE_CUBE_MAP
:
2906 case GL_TEXTURE_CUBE_MAP_ARRAY
:
2907 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
2911 case GL_TEXTURE_RECTANGLE
:
2912 case GL_TEXTURE_2D_MULTISAMPLE
:
2913 /* These texture types are valid to pass to
2914 * glFramebufferTexture(), but since they aren't layered, it
2915 * is equivalent to calling glFramebufferTexture{1D,2D}().
2917 *layered
= GL_FALSE
;
2921 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2922 "%s(invalid texture target %s)", caller
,
2923 _mesa_enum_to_string(target
));
2929 * Common code called by gl*FramebufferTextureLayer() to verify the texture
2932 * \return true if no errors, false if errors
2935 check_texture_target(struct gl_context
*ctx
, GLenum target
,
2938 /* We're being called by glFramebufferTextureLayer().
2939 * The only legal texture types for that function are 3D,
2940 * cube-map, and 1D/2D/cube-map array textures.
2942 * We don't need to check for GL_ARB_texture_cube_map_array because the
2943 * application wouldn't have been able to create a texture with a
2944 * GL_TEXTURE_CUBE_MAP_ARRAY target if the extension were not enabled.
2948 case GL_TEXTURE_1D_ARRAY
:
2949 case GL_TEXTURE_2D_ARRAY
:
2950 case GL_TEXTURE_CUBE_MAP_ARRAY
:
2951 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
2953 case GL_TEXTURE_CUBE_MAP
:
2954 /* We don't need to check the extension (GL_ARB_direct_state_access) or
2955 * GL version (4.5) for GL_TEXTURE_CUBE_MAP because DSA is always
2956 * enabled in core profile. This can be called from
2957 * _mesa_FramebufferTextureLayer in compatibility profile (OpenGL 3.0),
2958 * so we do have to check the profile.
2960 return ctx
->API
== API_OPENGL_CORE
;
2963 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2964 "%s(invalid texture target %s)", caller
,
2965 _mesa_enum_to_string(target
));
2971 * Common code called by glFramebufferTexture*D() to verify the texture
2974 * \return true if no errors, false if errors
2977 check_textarget(struct gl_context
*ctx
, int dims
, GLenum target
,
2978 GLenum textarget
, const char *caller
)
2984 switch (textarget
) {
2987 case GL_TEXTURE_1D_ARRAY
:
2988 err
= !ctx
->Extensions
.EXT_texture_array
;
2995 switch (textarget
) {
2998 case GL_TEXTURE_RECTANGLE
:
2999 err
= _mesa_is_gles(ctx
)
3000 || !ctx
->Extensions
.NV_texture_rectangle
;
3002 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
3003 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
3004 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
3005 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
3006 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
3007 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
3008 err
= !ctx
->Extensions
.ARB_texture_cube_map
;
3010 case GL_TEXTURE_2D_ARRAY
:
3011 err
= (_mesa_is_gles(ctx
) && ctx
->Version
< 30)
3012 || !ctx
->Extensions
.EXT_texture_array
;
3014 case GL_TEXTURE_2D_MULTISAMPLE
:
3015 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3016 err
= (_mesa_is_gles(ctx
) ||
3017 !ctx
->Extensions
.ARB_texture_multisample
) &&
3018 !_mesa_is_gles31(ctx
);
3025 if (textarget
!= GL_TEXTURE_3D
)
3033 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3034 "%s(invalid textarget %s)",
3035 caller
, _mesa_enum_to_string(textarget
));
3039 /* Make sure textarget is consistent with the texture's type */
3040 err
= (target
== GL_TEXTURE_CUBE_MAP
) ?
3041 !_mesa_is_cube_face(textarget
): (target
!= textarget
);
3044 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3045 "%s(mismatched texture target)", caller
);
3054 * Common code called by gl*FramebufferTextureLayer() and
3055 * glFramebufferTexture3D() to validate the layer.
3057 * \return true if no errors, false if errors
3060 check_layer(struct gl_context
*ctx
, GLenum target
, GLint layer
,
3063 /* Page 306 (page 328 of the PDF) of the OpenGL 4.5 (Core Profile)
3066 * "An INVALID_VALUE error is generated if texture is non-zero
3067 * and layer is negative."
3070 _mesa_error(ctx
, GL_INVALID_VALUE
,
3071 "%s(layer %u < 0)", caller
, layer
);
3075 if (target
== GL_TEXTURE_3D
) {
3076 const GLuint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
3077 if (layer
>= maxSize
) {
3078 _mesa_error(ctx
, GL_INVALID_VALUE
,
3079 "%s(invalid layer %u)", caller
, layer
);
3083 else if ((target
== GL_TEXTURE_1D_ARRAY
) ||
3084 (target
== GL_TEXTURE_2D_ARRAY
) ||
3085 (target
== GL_TEXTURE_CUBE_MAP_ARRAY
) ||
3086 (target
== GL_TEXTURE_2D_MULTISAMPLE_ARRAY
)) {
3087 if (layer
>= ctx
->Const
.MaxArrayTextureLayers
) {
3088 _mesa_error(ctx
, GL_INVALID_VALUE
,
3089 "%s(layer %u >= GL_MAX_ARRAY_TEXTURE_LAYERS)",
3094 else if (target
== GL_TEXTURE_CUBE_MAP
) {
3096 _mesa_error(ctx
, GL_INVALID_VALUE
,
3097 "%s(layer %u >= 6)", caller
, layer
);
3107 * Common code called by all gl*FramebufferTexture*() entry points to verify
3110 * \return true if no errors, false if errors
3113 check_level(struct gl_context
*ctx
, GLenum target
, GLint level
,
3117 (level
>= _mesa_max_texture_levels(ctx
, target
))) {
3118 _mesa_error(ctx
, GL_INVALID_VALUE
,
3119 "%s(invalid level %d)", caller
, level
);
3128 _mesa_framebuffer_texture(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
3130 struct gl_texture_object
*texObj
, GLenum textarget
,
3131 GLint level
, GLuint layer
, GLboolean layered
,
3134 struct gl_renderbuffer_attachment
*att
;
3136 /* The window-system framebuffer object is immutable */
3137 if (_mesa_is_winsys_fbo(fb
)) {
3138 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(window-system framebuffer)",
3143 /* Not a hash lookup, so we can afford to get the attachment here. */
3144 att
= get_attachment(ctx
, fb
, attachment
);
3146 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", caller
,
3147 _mesa_enum_to_string(attachment
));
3151 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3153 mtx_lock(&fb
->Mutex
);
3155 if (attachment
== GL_DEPTH_ATTACHMENT
&&
3156 texObj
== fb
->Attachment
[BUFFER_STENCIL
].Texture
&&
3157 level
== fb
->Attachment
[BUFFER_STENCIL
].TextureLevel
&&
3158 _mesa_tex_target_to_face(textarget
) ==
3159 fb
->Attachment
[BUFFER_STENCIL
].CubeMapFace
&&
3160 layer
== fb
->Attachment
[BUFFER_STENCIL
].Zoffset
) {
3161 /* The texture object is already attached to the stencil attachment
3162 * point. Don't create a new renderbuffer; just reuse the stencil
3163 * attachment's. This is required to prevent a GL error in
3164 * glGetFramebufferAttachmentParameteriv(GL_DEPTH_STENCIL).
3166 reuse_framebuffer_texture_attachment(fb
, BUFFER_DEPTH
,
3168 } else if (attachment
== GL_STENCIL_ATTACHMENT
&&
3169 texObj
== fb
->Attachment
[BUFFER_DEPTH
].Texture
&&
3170 level
== fb
->Attachment
[BUFFER_DEPTH
].TextureLevel
&&
3171 _mesa_tex_target_to_face(textarget
) ==
3172 fb
->Attachment
[BUFFER_DEPTH
].CubeMapFace
&&
3173 layer
== fb
->Attachment
[BUFFER_DEPTH
].Zoffset
) {
3174 /* As above, but with depth and stencil transposed. */
3175 reuse_framebuffer_texture_attachment(fb
, BUFFER_STENCIL
,
3178 set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
3179 level
, layer
, layered
);
3181 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3182 /* Above we created a new renderbuffer and attached it to the
3183 * depth attachment point. Now attach it to the stencil attachment
3186 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3187 reuse_framebuffer_texture_attachment(fb
,BUFFER_STENCIL
,
3192 /* Set the render-to-texture flag. We'll check this flag in
3193 * glTexImage() and friends to determine if we need to revalidate
3194 * any FBOs that might be rendering into this texture.
3195 * This flag never gets cleared since it's non-trivial to determine
3196 * when all FBOs might be done rendering to this texture. That's OK
3197 * though since it's uncommon to render to a texture then repeatedly
3198 * call glTexImage() to change images in the texture.
3200 texObj
->_RenderToTexture
= GL_TRUE
;
3203 remove_attachment(ctx
, att
);
3204 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3205 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3206 remove_attachment(ctx
, &fb
->Attachment
[BUFFER_STENCIL
]);
3210 invalidate_framebuffer(fb
);
3212 mtx_unlock(&fb
->Mutex
);
3217 framebuffer_texture_with_dims(int dims
, GLenum target
,
3218 GLenum attachment
, GLenum textarget
,
3219 GLuint texture
, GLint level
, GLint layer
,
3222 GET_CURRENT_CONTEXT(ctx
);
3223 struct gl_framebuffer
*fb
;
3224 struct gl_texture_object
*texObj
;
3226 /* Get the framebuffer object */
3227 fb
= get_framebuffer_target(ctx
, target
);
3229 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", caller
,
3230 _mesa_enum_to_string(target
));
3234 /* Get the texture object */
3235 if (!get_texture_for_framebuffer(ctx
, texture
, false, caller
, &texObj
))
3239 if (!check_textarget(ctx
, dims
, texObj
->Target
, textarget
, caller
))
3242 if ((dims
== 3) && !check_layer(ctx
, texObj
->Target
, layer
, caller
))
3245 if (!check_level(ctx
, textarget
, level
, caller
))
3249 _mesa_framebuffer_texture(ctx
, fb
, attachment
, texObj
, textarget
, level
,
3250 layer
, GL_FALSE
, caller
);
3255 _mesa_FramebufferTexture1D(GLenum target
, GLenum attachment
,
3256 GLenum textarget
, GLuint texture
, GLint level
)
3258 framebuffer_texture_with_dims(1, target
, attachment
, textarget
, texture
,
3259 level
, 0, "glFramebufferTexture1D");
3264 _mesa_FramebufferTexture2D(GLenum target
, GLenum attachment
,
3265 GLenum textarget
, GLuint texture
, GLint level
)
3267 framebuffer_texture_with_dims(2, target
, attachment
, textarget
, texture
,
3268 level
, 0, "glFramebufferTexture2D");
3273 _mesa_FramebufferTexture3D(GLenum target
, GLenum attachment
,
3274 GLenum textarget
, GLuint texture
,
3275 GLint level
, GLint layer
)
3277 framebuffer_texture_with_dims(3, target
, attachment
, textarget
, texture
,
3278 level
, layer
, "glFramebufferTexture3D");
3283 _mesa_FramebufferTextureLayer(GLenum target
, GLenum attachment
,
3284 GLuint texture
, GLint level
, GLint layer
)
3286 GET_CURRENT_CONTEXT(ctx
);
3287 struct gl_framebuffer
*fb
;
3288 struct gl_texture_object
*texObj
;
3289 GLenum textarget
= 0;
3291 const char *func
= "glFramebufferTextureLayer";
3293 /* Get the framebuffer object */
3294 fb
= get_framebuffer_target(ctx
, target
);
3296 _mesa_error(ctx
, GL_INVALID_ENUM
,
3297 "glFramebufferTextureLayer(invalid target %s)",
3298 _mesa_enum_to_string(target
));
3302 /* Get the texture object */
3303 if (!get_texture_for_framebuffer(ctx
, texture
, false, func
, &texObj
))
3307 if (!check_texture_target(ctx
, texObj
->Target
, func
))
3310 if (!check_layer(ctx
, texObj
->Target
, layer
, func
))
3313 if (!check_level(ctx
, texObj
->Target
, level
, func
))
3316 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3317 assert(layer
>= 0 && layer
< 6);
3318 textarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ layer
;
3323 _mesa_framebuffer_texture(ctx
, fb
, attachment
, texObj
, textarget
, level
,
3324 layer
, GL_FALSE
, func
);
3329 _mesa_NamedFramebufferTextureLayer(GLuint framebuffer
, GLenum attachment
,
3330 GLuint texture
, GLint level
, GLint layer
)
3332 GET_CURRENT_CONTEXT(ctx
);
3333 struct gl_framebuffer
*fb
;
3334 struct gl_texture_object
*texObj
;
3335 GLenum textarget
= 0;
3337 const char *func
= "glNamedFramebufferTextureLayer";
3339 /* Get the framebuffer object */
3340 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
, func
);
3344 /* Get the texture object */
3345 if (!get_texture_for_framebuffer(ctx
, texture
, false, func
, &texObj
))
3349 if (!check_texture_target(ctx
, texObj
->Target
, func
))
3352 if (!check_layer(ctx
, texObj
->Target
, layer
, func
))
3355 if (!check_level(ctx
, texObj
->Target
, level
, func
))
3358 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3359 assert(layer
>= 0 && layer
< 6);
3360 textarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ layer
;
3365 _mesa_framebuffer_texture(ctx
, fb
, attachment
, texObj
, textarget
, level
,
3366 layer
, GL_FALSE
, func
);
3371 _mesa_FramebufferTexture(GLenum target
, GLenum attachment
,
3372 GLuint texture
, GLint level
)
3374 GET_CURRENT_CONTEXT(ctx
);
3375 struct gl_framebuffer
*fb
;
3376 struct gl_texture_object
*texObj
;
3377 GLboolean layered
= GL_FALSE
;
3379 const char *func
= "FramebufferTexture";
3381 if (!_mesa_has_geometry_shaders(ctx
)) {
3382 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3383 "unsupported function (glFramebufferTexture) called");
3387 /* Get the framebuffer object */
3388 fb
= get_framebuffer_target(ctx
, target
);
3390 _mesa_error(ctx
, GL_INVALID_ENUM
,
3391 "glFramebufferTexture(invalid target %s)",
3392 _mesa_enum_to_string(target
));
3396 /* Get the texture object */
3397 if (!get_texture_for_framebuffer(ctx
, texture
, true, func
, &texObj
))
3401 if (!check_layered_texture_target(ctx
, texObj
->Target
, func
, &layered
))
3404 if (!check_level(ctx
, texObj
->Target
, level
, func
))
3408 _mesa_framebuffer_texture(ctx
, fb
, attachment
, texObj
, 0, level
,
3414 _mesa_NamedFramebufferTexture(GLuint framebuffer
, GLenum attachment
,
3415 GLuint texture
, GLint level
)
3417 GET_CURRENT_CONTEXT(ctx
);
3418 struct gl_framebuffer
*fb
;
3419 struct gl_texture_object
*texObj
;
3420 GLboolean layered
= GL_FALSE
;
3422 const char *func
= "glNamedFramebufferTexture";
3424 if (!_mesa_has_geometry_shaders(ctx
)) {
3425 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3426 "unsupported function (glNamedFramebufferTexture) called");
3430 /* Get the framebuffer object */
3431 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
, func
);
3435 /* Get the texture object */
3436 if (!get_texture_for_framebuffer(ctx
, texture
, true, func
, &texObj
))
3440 if (!check_layered_texture_target(ctx
, texObj
->Target
, func
,
3444 if (!check_level(ctx
, texObj
->Target
, level
, func
))
3448 _mesa_framebuffer_texture(ctx
, fb
, attachment
, texObj
, 0, level
,
3454 _mesa_framebuffer_renderbuffer(struct gl_context
*ctx
,
3455 struct gl_framebuffer
*fb
,
3457 struct gl_renderbuffer
*rb
)
3459 assert(!_mesa_is_winsys_fbo(fb
));
3461 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3463 assert(ctx
->Driver
.FramebufferRenderbuffer
);
3464 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
3466 /* Some subsequent GL commands may depend on the framebuffer's visual
3467 * after the binding is updated. Update visual info now.
3469 _mesa_update_framebuffer_visual(ctx
, fb
);
3473 framebuffer_renderbuffer(struct gl_context
*ctx
,
3474 struct gl_framebuffer
*fb
,
3476 struct gl_renderbuffer
*rb
,
3479 struct gl_renderbuffer_attachment
*att
;
3481 if (_mesa_is_winsys_fbo(fb
)) {
3482 /* Can't attach new renderbuffers to a window system framebuffer */
3483 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3484 "%s(window-system framebuffer)", func
);
3488 att
= get_attachment(ctx
, fb
, attachment
);
3490 _mesa_error(ctx
, GL_INVALID_ENUM
,
3491 "%s(invalid attachment %s)", func
,
3492 _mesa_enum_to_string(attachment
));
3496 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
&&
3497 rb
&& rb
->Format
!= MESA_FORMAT_NONE
) {
3498 /* make sure the renderbuffer is a depth/stencil format */
3499 const GLenum baseFormat
= _mesa_get_format_base_format(rb
->Format
);
3500 if (baseFormat
!= GL_DEPTH_STENCIL
) {
3501 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3502 "%s(renderbuffer is not DEPTH_STENCIL format)", func
);
3507 _mesa_framebuffer_renderbuffer(ctx
, fb
, attachment
, rb
);
3511 _mesa_FramebufferRenderbuffer(GLenum target
, GLenum attachment
,
3512 GLenum renderbuffertarget
,
3513 GLuint renderbuffer
)
3515 struct gl_framebuffer
*fb
;
3516 struct gl_renderbuffer
*rb
;
3517 GET_CURRENT_CONTEXT(ctx
);
3519 fb
= get_framebuffer_target(ctx
, target
);
3521 _mesa_error(ctx
, GL_INVALID_ENUM
,
3522 "glFramebufferRenderbuffer(invalid target %s)",
3523 _mesa_enum_to_string(target
));
3527 if (renderbuffertarget
!= GL_RENDERBUFFER
) {
3528 _mesa_error(ctx
, GL_INVALID_ENUM
,
3529 "glFramebufferRenderbuffer(renderbuffertarget is not "
3530 "GL_RENDERBUFFER)");
3535 rb
= _mesa_lookup_renderbuffer_err(ctx
, renderbuffer
,
3536 "glFramebufferRenderbuffer");
3541 /* remove renderbuffer attachment */
3545 framebuffer_renderbuffer(ctx
, fb
, attachment
, rb
,
3546 "glFramebufferRenderbuffer");
3551 _mesa_NamedFramebufferRenderbuffer(GLuint framebuffer
, GLenum attachment
,
3552 GLenum renderbuffertarget
,
3553 GLuint renderbuffer
)
3555 struct gl_framebuffer
*fb
;
3556 struct gl_renderbuffer
*rb
;
3557 GET_CURRENT_CONTEXT(ctx
);
3559 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3560 "glNamedFramebufferRenderbuffer");
3564 if (renderbuffertarget
!= GL_RENDERBUFFER
) {
3565 _mesa_error(ctx
, GL_INVALID_ENUM
,
3566 "glNamedFramebufferRenderbuffer(renderbuffertarget is not "
3567 "GL_RENDERBUFFER)");
3572 rb
= _mesa_lookup_renderbuffer_err(ctx
, renderbuffer
,
3573 "glNamedFramebufferRenderbuffer");
3578 /* remove renderbuffer attachment */
3582 framebuffer_renderbuffer(ctx
, fb
, attachment
, rb
,
3583 "glNamedFramebufferRenderbuffer");
3588 _mesa_get_framebuffer_attachment_parameter(struct gl_context
*ctx
,
3589 struct gl_framebuffer
*buffer
,
3590 GLenum attachment
, GLenum pname
,
3591 GLint
*params
, const char *caller
)
3593 const struct gl_renderbuffer_attachment
*att
;
3596 /* The error code for an attachment type of GL_NONE differs between APIs.
3598 * From the ES 2.0.25 specification, page 127:
3599 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
3600 * querying any other pname will generate INVALID_ENUM."
3602 * From the OpenGL 3.0 specification, page 337, or identically,
3603 * the OpenGL ES 3.0.4 specification, page 240:
3605 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, no
3606 * framebuffer is bound to target. In this case querying pname
3607 * FRAMEBUFFER_ATTACHMENT_OBJECT_NAME will return zero, and all other
3608 * queries will generate an INVALID_OPERATION error."
3610 err
= ctx
->API
== API_OPENGLES2
&& ctx
->Version
< 30 ?
3611 GL_INVALID_ENUM
: GL_INVALID_OPERATION
;
3613 if (_mesa_is_winsys_fbo(buffer
)) {
3614 /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
3617 * "If the framebuffer currently bound to target is zero, then
3618 * INVALID_OPERATION is generated."
3620 * The EXT_framebuffer_object spec has the same wording, and the
3621 * OES_framebuffer_object spec refers to the EXT_framebuffer_object
3624 if ((!_mesa_is_desktop_gl(ctx
) ||
3625 !ctx
->Extensions
.ARB_framebuffer_object
)
3626 && !_mesa_is_gles3(ctx
)) {
3627 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3628 "%s(window-system framebuffer)", caller
);
3632 if (_mesa_is_gles3(ctx
) && attachment
!= GL_BACK
&&
3633 attachment
!= GL_DEPTH
&& attachment
!= GL_STENCIL
) {
3634 _mesa_error(ctx
, GL_INVALID_ENUM
,
3635 "%s(invalid attachment %s)", caller
,
3636 _mesa_enum_to_string(attachment
));
3640 /* The specs are not clear about how to handle
3641 * GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME with the default framebuffer,
3642 * but dEQP-GLES3 expects an INVALID_ENUM error. This has also been
3645 * https://cvs.khronos.org/bugzilla/show_bug.cgi?id=12928#c1
3646 * and https://bugs.freedesktop.org/show_bug.cgi?id=31947
3648 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME
) {
3649 _mesa_error(ctx
, GL_INVALID_ENUM
,
3650 "%s(requesting GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME "
3651 "when GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is "
3652 "GL_FRAMEBUFFER_DEFAULT is not allowed)", caller
);
3656 /* the default / window-system FBO */
3657 att
= _mesa_get_fb0_attachment(ctx
, buffer
, attachment
);
3660 /* user-created framebuffer FBO */
3661 att
= get_attachment(ctx
, buffer
, attachment
);
3665 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", caller
,
3666 _mesa_enum_to_string(attachment
));
3670 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3671 const struct gl_renderbuffer_attachment
*depthAtt
, *stencilAtt
;
3672 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
) {
3673 /* This behavior is first specified in OpenGL 4.4 specification.
3675 * From the OpenGL 4.4 spec page 275:
3676 * "This query cannot be performed for a combined depth+stencil
3677 * attachment, since it does not have a single format."
3679 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3680 "%s(GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE"
3681 " is invalid for depth+stencil attachment)", caller
);
3684 /* the depth and stencil attachments must point to the same buffer */
3685 depthAtt
= get_attachment(ctx
, buffer
, GL_DEPTH_ATTACHMENT
);
3686 stencilAtt
= get_attachment(ctx
, buffer
, GL_STENCIL_ATTACHMENT
);
3687 if (depthAtt
->Renderbuffer
!= stencilAtt
->Renderbuffer
) {
3688 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3689 "%s(DEPTH/STENCIL attachments differ)", caller
);
3694 /* No need to flush here */
3697 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
3698 /* From the OpenGL spec, 9.2. Binding and Managing Framebuffer Objects:
3700 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
3701 * either no framebuffer is bound to target; or the default framebuffer
3702 * is bound, attachment is DEPTH or STENCIL, and the number of depth or
3703 * stencil bits, respectively, is zero."
3705 *params
= (_mesa_is_winsys_fbo(buffer
) &&
3706 ((attachment
!= GL_DEPTH
&& attachment
!= GL_STENCIL
) ||
3707 (att
->Type
!= GL_NONE
)))
3708 ? GL_FRAMEBUFFER_DEFAULT
: att
->Type
;
3710 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
3711 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
3712 *params
= att
->Renderbuffer
->Name
;
3714 else if (att
->Type
== GL_TEXTURE
) {
3715 *params
= att
->Texture
->Name
;
3718 assert(att
->Type
== GL_NONE
);
3719 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
3722 goto invalid_pname_enum
;
3726 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
3727 if (att
->Type
== GL_TEXTURE
) {
3728 *params
= att
->TextureLevel
;
3730 else if (att
->Type
== GL_NONE
) {
3731 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3732 _mesa_enum_to_string(pname
));
3735 goto invalid_pname_enum
;
3738 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
3739 if (att
->Type
== GL_TEXTURE
) {
3740 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
3741 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
3747 else if (att
->Type
== GL_NONE
) {
3748 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3749 _mesa_enum_to_string(pname
));
3752 goto invalid_pname_enum
;
3755 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
3756 if (ctx
->API
== API_OPENGLES
) {
3757 goto invalid_pname_enum
;
3758 } else if (att
->Type
== GL_NONE
) {
3759 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3760 _mesa_enum_to_string(pname
));
3761 } else if (att
->Type
== GL_TEXTURE
) {
3762 if (att
->Texture
&& (att
->Texture
->Target
== GL_TEXTURE_3D
||
3763 att
->Texture
->Target
== GL_TEXTURE_2D_ARRAY
)) {
3764 *params
= att
->Zoffset
;
3771 goto invalid_pname_enum
;
3774 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
:
3775 if ((!_mesa_is_desktop_gl(ctx
) ||
3776 !ctx
->Extensions
.ARB_framebuffer_object
)
3777 && !_mesa_is_gles3(ctx
)) {
3778 goto invalid_pname_enum
;
3780 else if (att
->Type
== GL_NONE
) {
3781 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3782 _mesa_enum_to_string(pname
));
3785 if (ctx
->Extensions
.EXT_framebuffer_sRGB
) {
3787 _mesa_get_format_color_encoding(att
->Renderbuffer
->Format
);
3790 /* According to ARB_framebuffer_sRGB, we should return LINEAR
3791 * if the sRGB conversion is unsupported. */
3792 *params
= GL_LINEAR
;
3796 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
:
3797 if ((ctx
->API
!= API_OPENGL_COMPAT
||
3798 !ctx
->Extensions
.ARB_framebuffer_object
)
3799 && ctx
->API
!= API_OPENGL_CORE
3800 && !_mesa_is_gles3(ctx
)) {
3801 goto invalid_pname_enum
;
3803 else if (att
->Type
== GL_NONE
) {
3804 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3805 _mesa_enum_to_string(pname
));
3808 mesa_format format
= att
->Renderbuffer
->Format
;
3810 /* Page 235 (page 247 of the PDF) in section 6.1.13 of the OpenGL ES
3813 * "If pname is FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE.... If
3814 * attachment is DEPTH_STENCIL_ATTACHMENT the query will fail and
3815 * generate an INVALID_OPERATION error.
3817 if (_mesa_is_gles3(ctx
) &&
3818 attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3819 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3821 "GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE of "
3822 "GL_DEPTH_STENCIL_ATTACHMENT)", caller
);
3826 if (format
== MESA_FORMAT_S_UINT8
) {
3830 else if (format
== MESA_FORMAT_Z32_FLOAT_S8X24_UINT
) {
3831 /* depends on the attachment parameter */
3832 if (attachment
== GL_STENCIL_ATTACHMENT
) {
3840 *params
= _mesa_get_format_datatype(format
);
3844 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
3845 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
3846 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
3847 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
3848 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
3849 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
3850 if ((!_mesa_is_desktop_gl(ctx
) ||
3851 !ctx
->Extensions
.ARB_framebuffer_object
)
3852 && !_mesa_is_gles3(ctx
)) {
3853 goto invalid_pname_enum
;
3855 else if (att
->Type
== GL_NONE
) {
3856 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3857 _mesa_enum_to_string(pname
));
3859 else if (att
->Texture
) {
3860 const struct gl_texture_image
*texImage
=
3861 _mesa_select_tex_image(att
->Texture
, att
->Texture
->Target
,
3864 *params
= get_component_bits(pname
, texImage
->_BaseFormat
,
3865 texImage
->TexFormat
);
3871 else if (att
->Renderbuffer
) {
3872 *params
= get_component_bits(pname
, att
->Renderbuffer
->_BaseFormat
,
3873 att
->Renderbuffer
->Format
);
3876 _mesa_problem(ctx
, "%s: invalid FBO attachment structure", caller
);
3879 case GL_FRAMEBUFFER_ATTACHMENT_LAYERED
:
3880 if (!_mesa_has_geometry_shaders(ctx
)) {
3881 goto invalid_pname_enum
;
3882 } else if (att
->Type
== GL_TEXTURE
) {
3883 *params
= att
->Layered
;
3884 } else if (att
->Type
== GL_NONE
) {
3885 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3886 _mesa_enum_to_string(pname
));
3888 goto invalid_pname_enum
;
3892 goto invalid_pname_enum
;
3898 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname %s)", caller
,
3899 _mesa_enum_to_string(pname
));
3905 _mesa_GetFramebufferAttachmentParameteriv(GLenum target
, GLenum attachment
,
3906 GLenum pname
, GLint
*params
)
3908 GET_CURRENT_CONTEXT(ctx
);
3909 struct gl_framebuffer
*buffer
;
3911 buffer
= get_framebuffer_target(ctx
, target
);
3913 _mesa_error(ctx
, GL_INVALID_ENUM
,
3914 "glGetFramebufferAttachmentParameteriv(invalid target %s)",
3915 _mesa_enum_to_string(target
));
3919 _mesa_get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
3921 "glGetFramebufferAttachmentParameteriv");
3926 _mesa_GetNamedFramebufferAttachmentParameteriv(GLuint framebuffer
,
3928 GLenum pname
, GLint
*params
)
3930 GET_CURRENT_CONTEXT(ctx
);
3931 struct gl_framebuffer
*buffer
;
3934 buffer
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3935 "glGetNamedFramebufferAttachmentParameteriv");
3941 * Section 9.2 Binding and Managing Framebuffer Objects of the OpenGL
3942 * 4.5 core spec (30.10.2014, PDF page 314):
3943 * "If framebuffer is zero, then the default draw framebuffer is
3946 buffer
= ctx
->WinSysDrawBuffer
;
3949 _mesa_get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
3951 "glGetNamedFramebufferAttachmentParameteriv");
3956 _mesa_NamedFramebufferParameteri(GLuint framebuffer
, GLenum pname
,
3959 GET_CURRENT_CONTEXT(ctx
);
3960 struct gl_framebuffer
*fb
= NULL
;
3962 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
3963 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3964 "glNamedFramebufferParameteri("
3965 "ARB_framebuffer_no_attachments not implemented)");
3969 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3970 "glNamedFramebufferParameteri");
3973 framebuffer_parameteri(ctx
, fb
, pname
, param
,
3974 "glNamedFramebufferParameteriv");
3980 _mesa_GetNamedFramebufferParameteriv(GLuint framebuffer
, GLenum pname
,
3983 GET_CURRENT_CONTEXT(ctx
);
3984 struct gl_framebuffer
*fb
;
3986 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
3987 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3988 "glNamedFramebufferParameteriv("
3989 "ARB_framebuffer_no_attachments not implemented)");
3994 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3995 "glGetNamedFramebufferParameteriv");
3997 fb
= ctx
->WinSysDrawBuffer
;
4001 get_framebuffer_parameteriv(ctx
, fb
, pname
, param
,
4002 "glGetNamedFramebufferParameteriv");
4008 invalidate_framebuffer_storage(struct gl_context
*ctx
,
4009 struct gl_framebuffer
*fb
,
4010 GLsizei numAttachments
,
4011 const GLenum
*attachments
, GLint x
, GLint y
,
4012 GLsizei width
, GLsizei height
, const char *name
)
4016 /* Section 17.4 Whole Framebuffer Operations of the OpenGL 4.5 Core
4017 * Spec (2.2.2015, PDF page 522) says:
4018 * "An INVALID_VALUE error is generated if numAttachments, width, or
4019 * height is negative."
4021 if (numAttachments
< 0) {
4022 _mesa_error(ctx
, GL_INVALID_VALUE
,
4023 "%s(numAttachments < 0)", name
);
4028 _mesa_error(ctx
, GL_INVALID_VALUE
,
4029 "%s(width < 0)", name
);
4034 _mesa_error(ctx
, GL_INVALID_VALUE
,
4035 "%s(height < 0)", name
);
4039 /* The GL_ARB_invalidate_subdata spec says:
4041 * "If an attachment is specified that does not exist in the
4042 * framebuffer bound to <target>, it is ignored."
4046 * "If <attachments> contains COLOR_ATTACHMENTm and m is greater than
4047 * or equal to the value of MAX_COLOR_ATTACHMENTS, then the error
4048 * INVALID_OPERATION is generated."
4050 * No mention is made of GL_AUXi being out of range. Therefore, we allow
4051 * any enum that can be allowed by the API (OpenGL ES 3.0 has a different
4052 * set of retrictions).
4054 for (i
= 0; i
< numAttachments
; i
++) {
4055 if (_mesa_is_winsys_fbo(fb
)) {
4056 switch (attachments
[i
]) {
4062 /* Accumulation buffers and auxilary buffers were removed in
4063 * OpenGL 3.1, and they never existed in OpenGL ES.
4065 if (ctx
->API
!= API_OPENGL_COMPAT
)
4075 case GL_FRONT_RIGHT
:
4076 if (!_mesa_is_desktop_gl(ctx
))
4083 switch (attachments
[i
]) {
4084 case GL_DEPTH_ATTACHMENT
:
4085 case GL_STENCIL_ATTACHMENT
:
4087 case GL_DEPTH_STENCIL_ATTACHMENT
:
4088 /* GL_DEPTH_STENCIL_ATTACHMENT is a valid attachment point only
4089 * in desktop and ES 3.0 profiles. Note that OES_packed_depth_stencil
4090 * extension does not make this attachment point valid on ES 2.0.
4092 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
))
4095 case GL_COLOR_ATTACHMENT0
:
4096 case GL_COLOR_ATTACHMENT1
:
4097 case GL_COLOR_ATTACHMENT2
:
4098 case GL_COLOR_ATTACHMENT3
:
4099 case GL_COLOR_ATTACHMENT4
:
4100 case GL_COLOR_ATTACHMENT5
:
4101 case GL_COLOR_ATTACHMENT6
:
4102 case GL_COLOR_ATTACHMENT7
:
4103 case GL_COLOR_ATTACHMENT8
:
4104 case GL_COLOR_ATTACHMENT9
:
4105 case GL_COLOR_ATTACHMENT10
:
4106 case GL_COLOR_ATTACHMENT11
:
4107 case GL_COLOR_ATTACHMENT12
:
4108 case GL_COLOR_ATTACHMENT13
:
4109 case GL_COLOR_ATTACHMENT14
:
4110 case GL_COLOR_ATTACHMENT15
: {
4111 unsigned k
= attachments
[i
] - GL_COLOR_ATTACHMENT0
;
4112 if (k
>= ctx
->Const
.MaxColorAttachments
) {
4113 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4114 "%s(attachment >= max. color attachments)", name
);
4125 /* We don't actually do anything for this yet. Just return after
4126 * validating the parameters and generating the required errors.
4131 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", name
,
4132 _mesa_enum_to_string(attachments
[i
]));
4138 _mesa_InvalidateSubFramebuffer(GLenum target
, GLsizei numAttachments
,
4139 const GLenum
*attachments
, GLint x
, GLint y
,
4140 GLsizei width
, GLsizei height
)
4142 struct gl_framebuffer
*fb
;
4143 GET_CURRENT_CONTEXT(ctx
);
4145 fb
= get_framebuffer_target(ctx
, target
);
4147 _mesa_error(ctx
, GL_INVALID_ENUM
,
4148 "glInvalidateSubFramebuffer(invalid target %s)",
4149 _mesa_enum_to_string(target
));
4153 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4154 x
, y
, width
, height
,
4155 "glInvalidateSubFramebuffer");
4160 _mesa_InvalidateNamedFramebufferSubData(GLuint framebuffer
,
4161 GLsizei numAttachments
,
4162 const GLenum
*attachments
,
4164 GLsizei width
, GLsizei height
)
4166 struct gl_framebuffer
*fb
;
4167 GET_CURRENT_CONTEXT(ctx
);
4169 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
4170 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
4171 * default draw framebuffer is affected."
4174 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4175 "glInvalidateNamedFramebufferSubData");
4180 fb
= ctx
->WinSysDrawBuffer
;
4182 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4183 x
, y
, width
, height
,
4184 "glInvalidateNamedFramebufferSubData");
4189 _mesa_InvalidateFramebuffer(GLenum target
, GLsizei numAttachments
,
4190 const GLenum
*attachments
)
4192 struct gl_framebuffer
*fb
;
4193 GET_CURRENT_CONTEXT(ctx
);
4195 fb
= get_framebuffer_target(ctx
, target
);
4197 _mesa_error(ctx
, GL_INVALID_ENUM
,
4198 "glInvalidateFramebuffer(invalid target %s)",
4199 _mesa_enum_to_string(target
));
4203 /* The GL_ARB_invalidate_subdata spec says:
4207 * void InvalidateFramebuffer(enum target,
4208 * sizei numAttachments,
4209 * const enum *attachments);
4211 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
4212 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
4213 * <MAX_VIEWPORT_DIMS[1]> respectively."
4215 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4217 ctx
->Const
.MaxViewportWidth
,
4218 ctx
->Const
.MaxViewportHeight
,
4219 "glInvalidateFramebuffer");
4224 _mesa_InvalidateNamedFramebufferData(GLuint framebuffer
,
4225 GLsizei numAttachments
,
4226 const GLenum
*attachments
)
4228 struct gl_framebuffer
*fb
;
4229 GET_CURRENT_CONTEXT(ctx
);
4231 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
4232 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
4233 * default draw framebuffer is affected."
4236 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4237 "glInvalidateNamedFramebufferData");
4242 fb
= ctx
->WinSysDrawBuffer
;
4244 /* The GL_ARB_invalidate_subdata spec says:
4248 * void InvalidateFramebuffer(enum target,
4249 * sizei numAttachments,
4250 * const enum *attachments);
4252 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
4253 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
4254 * <MAX_VIEWPORT_DIMS[1]> respectively."
4256 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4258 ctx
->Const
.MaxViewportWidth
,
4259 ctx
->Const
.MaxViewportHeight
,
4260 "glInvalidateNamedFramebufferData");
4265 _mesa_DiscardFramebufferEXT(GLenum target
, GLsizei numAttachments
,
4266 const GLenum
*attachments
)
4268 struct gl_framebuffer
*fb
;
4271 GET_CURRENT_CONTEXT(ctx
);
4273 fb
= get_framebuffer_target(ctx
, target
);
4275 _mesa_error(ctx
, GL_INVALID_ENUM
,
4276 "glDiscardFramebufferEXT(target %s)",
4277 _mesa_enum_to_string(target
));
4281 if (numAttachments
< 0) {
4282 _mesa_error(ctx
, GL_INVALID_VALUE
,
4283 "glDiscardFramebufferEXT(numAttachments < 0)");
4287 for (i
= 0; i
< numAttachments
; i
++) {
4288 switch (attachments
[i
]) {
4292 if (_mesa_is_user_fbo(fb
))
4295 case GL_COLOR_ATTACHMENT0
:
4296 case GL_DEPTH_ATTACHMENT
:
4297 case GL_STENCIL_ATTACHMENT
:
4298 if (_mesa_is_winsys_fbo(fb
))
4306 if (ctx
->Driver
.DiscardFramebuffer
)
4307 ctx
->Driver
.DiscardFramebuffer(ctx
, target
, numAttachments
, attachments
);
4312 _mesa_error(ctx
, GL_INVALID_ENUM
,
4313 "glDiscardFramebufferEXT(attachment %s)",
4314 _mesa_enum_to_string(attachments
[i
]));