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
];
392 if (texImage
->Width
== 0 || texImage
->Height
== 0 || texImage
->Depth
== 0)
395 if ((texImage
->TexObject
->Target
== GL_TEXTURE_1D_ARRAY
396 && att
->Zoffset
>= texImage
->Height
)
397 || (texImage
->TexObject
->Target
!= GL_TEXTURE_1D_ARRAY
398 && att
->Zoffset
>= texImage
->Depth
))
405 * Create a renderbuffer which will be set up by the driver to wrap the
406 * texture image slice.
408 * By using a gl_renderbuffer (like user-allocated renderbuffers), drivers get
409 * to share most of their framebuffer rendering code between winsys,
410 * renderbuffer, and texture attachments.
412 * The allocated renderbuffer uses a non-zero Name so that drivers can check
413 * it for determining vertical orientation, but we use ~0 to make it fairly
414 * unambiguous with actual user (non-texture) renderbuffers.
417 _mesa_update_texture_renderbuffer(struct gl_context
*ctx
,
418 struct gl_framebuffer
*fb
,
419 struct gl_renderbuffer_attachment
*att
)
421 struct gl_texture_image
*texImage
;
422 struct gl_renderbuffer
*rb
;
424 texImage
= att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
426 rb
= att
->Renderbuffer
;
428 rb
= ctx
->Driver
.NewRenderbuffer(ctx
, ~0);
430 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glFramebufferTexture()");
433 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
435 /* This can't get called on a texture renderbuffer, so set it to NULL
436 * for clarity compared to user renderbuffers.
438 rb
->AllocStorage
= NULL
;
440 rb
->NeedsFinishRenderTexture
= ctx
->Driver
.FinishRenderTexture
!= NULL
;
446 rb
->_BaseFormat
= texImage
->_BaseFormat
;
447 rb
->Format
= texImage
->TexFormat
;
448 rb
->InternalFormat
= texImage
->InternalFormat
;
449 rb
->Width
= texImage
->Width2
;
450 rb
->Height
= texImage
->Height2
;
451 rb
->Depth
= texImage
->Depth2
;
452 rb
->NumSamples
= texImage
->NumSamples
;
453 rb
->TexImage
= texImage
;
455 if (driver_RenderTexture_is_safe(att
))
456 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
460 * Bind a texture object to an attachment point.
461 * The previous binding, if any, will be removed first.
464 set_texture_attachment(struct gl_context
*ctx
,
465 struct gl_framebuffer
*fb
,
466 struct gl_renderbuffer_attachment
*att
,
467 struct gl_texture_object
*texObj
,
468 GLenum texTarget
, GLuint level
, GLuint layer
,
471 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
473 if (rb
&& rb
->NeedsFinishRenderTexture
)
474 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
476 if (att
->Texture
== texObj
) {
477 /* re-attaching same texture */
478 assert(att
->Type
== GL_TEXTURE
);
482 remove_attachment(ctx
, att
);
483 att
->Type
= GL_TEXTURE
;
484 assert(!att
->Texture
);
485 _mesa_reference_texobj(&att
->Texture
, texObj
);
487 invalidate_framebuffer(fb
);
489 /* always update these fields */
490 att
->TextureLevel
= level
;
491 att
->CubeMapFace
= _mesa_tex_target_to_face(texTarget
);
492 att
->Zoffset
= layer
;
493 att
->Layered
= layered
;
494 att
->Complete
= GL_FALSE
;
496 _mesa_update_texture_renderbuffer(ctx
, fb
, att
);
501 * Bind a renderbuffer to an attachment point.
502 * The previous binding, if any, will be removed first.
505 set_renderbuffer_attachment(struct gl_context
*ctx
,
506 struct gl_renderbuffer_attachment
*att
,
507 struct gl_renderbuffer
*rb
)
509 /* XXX check if re-doing same attachment, exit early */
510 remove_attachment(ctx
, att
);
511 att
->Type
= GL_RENDERBUFFER_EXT
;
512 att
->Texture
= NULL
; /* just to be safe */
513 att
->Layered
= GL_FALSE
;
514 att
->Complete
= GL_FALSE
;
515 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
520 * Fallback for ctx->Driver.FramebufferRenderbuffer()
521 * Attach a renderbuffer object to a framebuffer object.
524 _mesa_FramebufferRenderbuffer_sw(struct gl_context
*ctx
,
525 struct gl_framebuffer
*fb
,
527 struct gl_renderbuffer
*rb
)
529 struct gl_renderbuffer_attachment
*att
;
531 mtx_lock(&fb
->Mutex
);
533 att
= get_attachment(ctx
, fb
, attachment
);
536 set_renderbuffer_attachment(ctx
, att
, rb
);
537 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
538 /* do stencil attachment here (depth already done above) */
539 att
= get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
);
541 set_renderbuffer_attachment(ctx
, att
, rb
);
543 rb
->AttachedAnytime
= GL_TRUE
;
546 remove_attachment(ctx
, att
);
547 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
548 /* detach stencil (depth was detached above) */
549 att
= get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
);
551 remove_attachment(ctx
, att
);
555 invalidate_framebuffer(fb
);
557 mtx_unlock(&fb
->Mutex
);
562 * Fallback for ctx->Driver.ValidateFramebuffer()
563 * Check if the renderbuffer's formats are supported by the software
565 * Drivers should probably override this.
568 _mesa_validate_framebuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
571 for (buf
= 0; buf
< BUFFER_COUNT
; buf
++) {
572 const struct gl_renderbuffer
*rb
= fb
->Attachment
[buf
].Renderbuffer
;
574 switch (rb
->_BaseFormat
) {
576 case GL_LUMINANCE_ALPHA
:
581 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
585 switch (rb
->Format
) {
586 /* XXX This list is likely incomplete. */
587 case MESA_FORMAT_R9G9B9E5_FLOAT
:
588 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
591 /* render buffer format is supported by software rendering */
600 * Return true if the framebuffer has a combined depth/stencil
601 * renderbuffer attached.
604 _mesa_has_depthstencil_combined(const struct gl_framebuffer
*fb
)
606 const struct gl_renderbuffer_attachment
*depth
=
607 &fb
->Attachment
[BUFFER_DEPTH
];
608 const struct gl_renderbuffer_attachment
*stencil
=
609 &fb
->Attachment
[BUFFER_STENCIL
];
611 if (depth
->Type
== stencil
->Type
) {
612 if (depth
->Type
== GL_RENDERBUFFER_EXT
&&
613 depth
->Renderbuffer
== stencil
->Renderbuffer
)
616 if (depth
->Type
== GL_TEXTURE
&&
617 depth
->Texture
== stencil
->Texture
)
629 att_incomplete(const char *msg
)
631 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
632 _mesa_debug(NULL
, "attachment incomplete: %s\n", msg
);
641 fbo_incomplete(struct gl_context
*ctx
, const char *msg
, int index
)
643 static GLuint msg_id
;
645 _mesa_gl_debug(ctx
, &msg_id
,
646 MESA_DEBUG_SOURCE_API
,
647 MESA_DEBUG_TYPE_OTHER
,
648 MESA_DEBUG_SEVERITY_MEDIUM
,
649 "FBO incomplete: %s [%d]\n", msg
, index
);
651 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
652 _mesa_debug(NULL
, "FBO Incomplete: %s [%d]\n", msg
, index
);
658 * Is the given base format a legal format for a color renderbuffer?
661 _mesa_is_legal_color_format(const struct gl_context
*ctx
, GLenum baseFormat
)
663 switch (baseFormat
) {
668 case GL_LUMINANCE_ALPHA
:
671 return ctx
->API
== API_OPENGL_COMPAT
&&
672 ctx
->Extensions
.ARB_framebuffer_object
;
675 return ctx
->Extensions
.ARB_texture_rg
;
683 * Is the given base format a legal format for a color renderbuffer?
686 is_format_color_renderable(const struct gl_context
*ctx
, mesa_format format
,
687 GLenum internalFormat
)
689 const GLenum baseFormat
=
690 _mesa_get_format_base_format(format
);
693 valid
= _mesa_is_legal_color_format(ctx
, baseFormat
);
694 if (!valid
|| _mesa_is_desktop_gl(ctx
)) {
698 /* Reject additional cases for GLES */
699 switch (internalFormat
) {
719 if (format
== MESA_FORMAT_B10G10R10A2_UNORM
&&
720 internalFormat
!= GL_RGB10_A2
) {
729 * Is the given base format a legal format for a depth/stencil renderbuffer?
732 is_legal_depth_format(const struct gl_context
*ctx
, GLenum baseFormat
)
734 switch (baseFormat
) {
735 case GL_DEPTH_COMPONENT
:
736 case GL_DEPTH_STENCIL_EXT
:
745 * Test if an attachment point is complete and update its Complete field.
746 * \param format if GL_COLOR, this is a color attachment point,
747 * if GL_DEPTH, this is a depth component attachment point,
748 * if GL_STENCIL, this is a stencil component attachment point.
751 test_attachment_completeness(const struct gl_context
*ctx
, GLenum format
,
752 struct gl_renderbuffer_attachment
*att
)
754 assert(format
== GL_COLOR
|| format
== GL_DEPTH
|| format
== GL_STENCIL
);
756 /* assume complete */
757 att
->Complete
= GL_TRUE
;
759 /* Look for reasons why the attachment might be incomplete */
760 if (att
->Type
== GL_TEXTURE
) {
761 const struct gl_texture_object
*texObj
= att
->Texture
;
762 struct gl_texture_image
*texImage
;
766 att_incomplete("no texobj");
767 att
->Complete
= GL_FALSE
;
771 texImage
= texObj
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
773 att_incomplete("no teximage");
774 att
->Complete
= GL_FALSE
;
777 if (texImage
->Width
< 1 || texImage
->Height
< 1) {
778 att_incomplete("teximage width/height=0");
779 att
->Complete
= GL_FALSE
;
783 switch (texObj
->Target
) {
785 if (att
->Zoffset
>= texImage
->Depth
) {
786 att_incomplete("bad z offset");
787 att
->Complete
= GL_FALSE
;
791 case GL_TEXTURE_1D_ARRAY
:
792 if (att
->Zoffset
>= texImage
->Height
) {
793 att_incomplete("bad 1D-array layer");
794 att
->Complete
= GL_FALSE
;
798 case GL_TEXTURE_2D_ARRAY
:
799 if (att
->Zoffset
>= texImage
->Depth
) {
800 att_incomplete("bad 2D-array layer");
801 att
->Complete
= GL_FALSE
;
805 case GL_TEXTURE_CUBE_MAP_ARRAY
:
806 if (att
->Zoffset
>= texImage
->Depth
) {
807 att_incomplete("bad cube-array layer");
808 att
->Complete
= GL_FALSE
;
814 baseFormat
= _mesa_get_format_base_format(texImage
->TexFormat
);
816 if (format
== GL_COLOR
) {
817 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
818 att_incomplete("bad format");
819 att
->Complete
= GL_FALSE
;
822 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
823 att_incomplete("compressed internalformat");
824 att
->Complete
= GL_FALSE
;
828 /* OES_texture_float allows creation and use of floating point
829 * textures with GL_FLOAT, GL_HALF_FLOAT but it does not allow
830 * these textures to be used as a render target, this is done via
831 * GL_EXT_color_buffer(_half)_float with set of new sized types.
833 if (_mesa_is_gles(ctx
) && (texImage
->TexObject
->_IsFloat
||
834 texImage
->TexObject
->_IsHalfFloat
)) {
835 att_incomplete("bad internal format");
836 att
->Complete
= GL_FALSE
;
840 else if (format
== GL_DEPTH
) {
841 if (baseFormat
== GL_DEPTH_COMPONENT
) {
844 else if (ctx
->Extensions
.ARB_depth_texture
&&
845 baseFormat
== GL_DEPTH_STENCIL
) {
849 att
->Complete
= GL_FALSE
;
850 att_incomplete("bad depth format");
855 assert(format
== GL_STENCIL
);
856 if (ctx
->Extensions
.ARB_depth_texture
&&
857 baseFormat
== GL_DEPTH_STENCIL
) {
859 } else if (ctx
->Extensions
.ARB_texture_stencil8
&&
860 baseFormat
== GL_STENCIL_INDEX
) {
863 /* no such thing as stencil-only textures */
864 att_incomplete("illegal stencil texture");
865 att
->Complete
= GL_FALSE
;
870 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
871 const GLenum baseFormat
=
872 _mesa_get_format_base_format(att
->Renderbuffer
->Format
);
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
;
961 /* Start at -2 to more easily loop over all attachment points.
966 for (i
= -2; i
< (GLint
) ctx
->Const
.MaxColorAttachments
; i
++) {
967 struct gl_renderbuffer_attachment
*att
;
969 mesa_format attFormat
;
970 GLenum att_tex_target
= GL_NONE
;
973 * XXX for ARB_fbo, only check color buffers that are named by
974 * GL_READ_BUFFER and GL_DRAW_BUFFERi.
977 /* check for attachment completeness
980 att
= &fb
->Attachment
[BUFFER_DEPTH
];
981 test_attachment_completeness(ctx
, GL_DEPTH
, att
);
982 if (!att
->Complete
) {
983 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
984 fbo_incomplete(ctx
, "depth attachment incomplete", -1);
986 } else if (att
->Type
!= GL_NONE
) {
987 has_depth_attachment
= true;
991 att
= &fb
->Attachment
[BUFFER_STENCIL
];
992 test_attachment_completeness(ctx
, GL_STENCIL
, att
);
993 if (!att
->Complete
) {
994 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
995 fbo_incomplete(ctx
, "stencil attachment incomplete", -1);
997 } else if (att
->Type
!= GL_NONE
) {
998 has_stencil_attachment
= true;
1002 att
= &fb
->Attachment
[BUFFER_COLOR0
+ i
];
1003 test_attachment_completeness(ctx
, GL_COLOR
, att
);
1004 if (!att
->Complete
) {
1005 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1006 fbo_incomplete(ctx
, "color attachment incomplete", i
);
1011 /* get width, height, format of the renderbuffer/texture
1013 if (att
->Type
== GL_TEXTURE
) {
1014 const struct gl_texture_image
*texImg
= att
->Renderbuffer
->TexImage
;
1015 att_tex_target
= att
->Texture
->Target
;
1016 minWidth
= MIN2(minWidth
, texImg
->Width
);
1017 maxWidth
= MAX2(maxWidth
, texImg
->Width
);
1018 minHeight
= MIN2(minHeight
, texImg
->Height
);
1019 maxHeight
= MAX2(maxHeight
, texImg
->Height
);
1020 f
= texImg
->_BaseFormat
;
1021 attFormat
= texImg
->TexFormat
;
1024 if (!is_format_color_renderable(ctx
, attFormat
,
1025 texImg
->InternalFormat
) &&
1026 !is_legal_depth_format(ctx
, f
) &&
1027 f
!= GL_STENCIL_INDEX
) {
1028 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT
;
1029 fbo_incomplete(ctx
, "texture attachment incomplete", -1);
1034 numSamples
= texImg
->NumSamples
;
1035 else if (numSamples
!= texImg
->NumSamples
) {
1036 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1037 fbo_incomplete(ctx
, "inconsistent sample count", -1);
1041 if (fixedSampleLocations
< 0)
1042 fixedSampleLocations
= texImg
->FixedSampleLocations
;
1043 else if (fixedSampleLocations
!= texImg
->FixedSampleLocations
) {
1044 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1045 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1049 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
1050 minWidth
= MIN2(minWidth
, att
->Renderbuffer
->Width
);
1051 maxWidth
= MAX2(minWidth
, att
->Renderbuffer
->Width
);
1052 minHeight
= MIN2(minHeight
, att
->Renderbuffer
->Height
);
1053 maxHeight
= MAX2(minHeight
, att
->Renderbuffer
->Height
);
1054 f
= att
->Renderbuffer
->InternalFormat
;
1055 attFormat
= att
->Renderbuffer
->Format
;
1059 numSamples
= att
->Renderbuffer
->NumSamples
;
1060 else if (numSamples
!= att
->Renderbuffer
->NumSamples
) {
1061 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1062 fbo_incomplete(ctx
, "inconsistent sample count", -1);
1066 /* RENDERBUFFER has fixedSampleLocations implicitly true */
1067 if (fixedSampleLocations
< 0)
1068 fixedSampleLocations
= GL_TRUE
;
1069 else if (fixedSampleLocations
!= GL_TRUE
) {
1070 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1071 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1076 assert(att
->Type
== GL_NONE
);
1080 /* check if integer color */
1081 fb
->_IntegerColor
= _mesa_is_format_integer_color(attFormat
);
1083 /* Update _AllColorBuffersFixedPoint and _HasSNormOrFloatColorBuffer. */
1085 GLenum type
= _mesa_get_format_datatype(attFormat
);
1087 fb
->_AllColorBuffersFixedPoint
=
1088 fb
->_AllColorBuffersFixedPoint
&&
1089 (type
== GL_UNSIGNED_NORMALIZED
|| type
== GL_SIGNED_NORMALIZED
);
1091 fb
->_HasSNormOrFloatColorBuffer
=
1092 fb
->_HasSNormOrFloatColorBuffer
||
1093 type
== GL_SIGNED_NORMALIZED
|| type
== GL_FLOAT
;
1096 /* Error-check width, height, format */
1097 if (numImages
== 1) {
1104 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
1105 /* check that width, height, format are same */
1106 if (minWidth
!= maxWidth
|| minHeight
!= maxHeight
) {
1107 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
;
1108 fbo_incomplete(ctx
, "width or height mismatch", -1);
1111 /* check that all color buffers are the same format */
1112 if (intFormat
!= GL_NONE
&& f
!= intFormat
) {
1113 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
1114 fbo_incomplete(ctx
, "format mismatch", -1);
1120 /* Check that the format is valid. (MESA_FORMAT_NONE means unsupported)
1122 if (att
->Type
== GL_RENDERBUFFER
&&
1123 att
->Renderbuffer
->Format
== MESA_FORMAT_NONE
) {
1124 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1125 fbo_incomplete(ctx
, "unsupported renderbuffer format", i
);
1129 /* Check that layered rendering is consistent. */
1131 if (att_tex_target
== GL_TEXTURE_CUBE_MAP
)
1132 att_layer_count
= 6;
1133 else if (att_tex_target
== GL_TEXTURE_1D_ARRAY
)
1134 att_layer_count
= att
->Renderbuffer
->Height
;
1136 att_layer_count
= att
->Renderbuffer
->Depth
;
1138 att_layer_count
= 0;
1140 if (!layer_info_valid
) {
1141 is_layered
= att
->Layered
;
1142 max_layer_count
= att_layer_count
;
1143 layer_tex_target
= att_tex_target
;
1144 layer_info_valid
= true;
1145 } else if (max_layer_count
> 0 && layer_tex_target
!= att_tex_target
) {
1146 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1147 fbo_incomplete(ctx
, "layered framebuffer has mismatched targets", i
);
1149 } else if (is_layered
!= att
->Layered
) {
1150 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1152 "framebuffer attachment layer mode is inconsistent",
1155 } else if (att_layer_count
> max_layer_count
) {
1156 max_layer_count
= att_layer_count
;
1160 fb
->MaxNumLayers
= max_layer_count
;
1162 if (numImages
== 0) {
1163 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1164 fbo_incomplete(ctx
, "no attachments", -1);
1168 if (_mesa_is_desktop_gl(ctx
) && !ctx
->Extensions
.ARB_ES2_compatibility
) {
1169 /* Check that all DrawBuffers are present */
1170 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
1171 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
1172 const struct gl_renderbuffer_attachment
*att
1173 = get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
]);
1175 if (att
->Type
== GL_NONE
) {
1176 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
1177 fbo_incomplete(ctx
, "missing drawbuffer", j
);
1183 /* Check that the ReadBuffer is present */
1184 if (fb
->ColorReadBuffer
!= GL_NONE
) {
1185 const struct gl_renderbuffer_attachment
*att
1186 = get_attachment(ctx
, fb
, fb
->ColorReadBuffer
);
1188 if (att
->Type
== GL_NONE
) {
1189 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
1190 fbo_incomplete(ctx
, "missing readbuffer", -1);
1196 /* The OpenGL ES3 spec, in chapter 9.4. FRAMEBUFFER COMPLETENESS, says:
1198 * "Depth and stencil attachments, if present, are the same image."
1200 * This restriction is not present in the OpenGL ES2 spec.
1202 if (_mesa_is_gles3(ctx
) &&
1203 has_stencil_attachment
&& has_depth_attachment
&&
1204 !_mesa_has_depthstencil_combined(fb
)) {
1205 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1206 fbo_incomplete(ctx
, "Depth and stencil attachments must be the same image", -1);
1210 /* Provisionally set status = COMPLETE ... */
1211 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
1213 /* ... but the driver may say the FB is incomplete.
1214 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
1217 if (ctx
->Driver
.ValidateFramebuffer
) {
1218 ctx
->Driver
.ValidateFramebuffer(ctx
, fb
);
1219 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1220 fbo_incomplete(ctx
, "driver marked FBO as incomplete", -1);
1224 if (fb
->_Status
== GL_FRAMEBUFFER_COMPLETE_EXT
) {
1226 * Note that if ARB_framebuffer_object is supported and the attached
1227 * renderbuffers/textures are different sizes, the framebuffer
1228 * width/height will be set to the smallest width/height.
1230 fb
->Width
= minWidth
;
1231 fb
->Height
= minHeight
;
1233 /* finally, update the visual info for the framebuffer */
1234 _mesa_update_framebuffer_visual(ctx
, fb
);
1239 GLboolean GLAPIENTRY
1240 _mesa_IsRenderbuffer(GLuint renderbuffer
)
1242 GET_CURRENT_CONTEXT(ctx
);
1243 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1245 struct gl_renderbuffer
*rb
=
1246 _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1247 if (rb
!= NULL
&& rb
!= &DummyRenderbuffer
)
1254 static struct gl_renderbuffer
*
1255 allocate_renderbuffer(struct gl_context
*ctx
, GLuint renderbuffer
,
1258 struct gl_renderbuffer
*newRb
;
1260 /* create new renderbuffer object */
1261 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
1263 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
1266 assert(newRb
->AllocStorage
);
1267 mtx_lock(&ctx
->Shared
->Mutex
);
1268 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
1269 newRb
->RefCount
= 1; /* referenced by hash table */
1270 mtx_unlock(&ctx
->Shared
->Mutex
);
1277 bind_renderbuffer(GLenum target
, GLuint renderbuffer
, bool allow_user_names
)
1279 struct gl_renderbuffer
*newRb
;
1280 GET_CURRENT_CONTEXT(ctx
);
1282 if (target
!= GL_RENDERBUFFER_EXT
) {
1283 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindRenderbufferEXT(target)");
1287 /* No need to flush here since the render buffer binding has no
1288 * effect on rendering state.
1292 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1293 if (newRb
== &DummyRenderbuffer
) {
1294 /* ID was reserved, but no real renderbuffer object made yet */
1297 else if (!newRb
&& !allow_user_names
) {
1298 /* All RB IDs must be Gen'd */
1299 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindRenderbuffer(buffer)");
1304 newRb
= allocate_renderbuffer(ctx
, renderbuffer
, "glBindRenderbufferEXT");
1311 assert(newRb
!= &DummyRenderbuffer
);
1313 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
1317 _mesa_BindRenderbuffer(GLenum target
, GLuint renderbuffer
)
1319 GET_CURRENT_CONTEXT(ctx
);
1321 /* OpenGL ES glBindRenderbuffer and glBindRenderbufferOES use this same
1322 * entry point, but they allow the use of user-generated names.
1324 bind_renderbuffer(target
, renderbuffer
, _mesa_is_gles(ctx
));
1328 _mesa_BindRenderbufferEXT(GLenum target
, GLuint renderbuffer
)
1330 /* This function should not be in the dispatch table for core profile /
1331 * OpenGL 3.1, so execution should never get here in those cases -- no
1332 * need for an explicit test.
1334 bind_renderbuffer(target
, renderbuffer
, true);
1339 * Remove the specified renderbuffer or texture from any attachment point in
1343 * \c true if the renderbuffer was detached from an attachment point. \c
1347 _mesa_detach_renderbuffer(struct gl_context
*ctx
,
1348 struct gl_framebuffer
*fb
,
1352 bool progress
= false;
1354 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1355 if (fb
->Attachment
[i
].Texture
== att
1356 || fb
->Attachment
[i
].Renderbuffer
== att
) {
1357 remove_attachment(ctx
, &fb
->Attachment
[i
]);
1362 /* Section 4.4.4 (Framebuffer Completeness), subsection "Whole Framebuffer
1363 * Completeness," of the OpenGL 3.1 spec says:
1365 * "Performing any of the following actions may change whether the
1366 * framebuffer is considered complete or incomplete:
1370 * - Deleting, with DeleteTextures or DeleteRenderbuffers, an object
1371 * containing an image that is attached to a framebuffer object
1372 * that is bound to the framebuffer."
1375 invalidate_framebuffer(fb
);
1382 _mesa_DeleteRenderbuffers(GLsizei n
, const GLuint
*renderbuffers
)
1385 GET_CURRENT_CONTEXT(ctx
);
1388 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteRenderbuffers(n < 0)");
1392 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1394 for (i
= 0; i
< n
; i
++) {
1395 if (renderbuffers
[i
] > 0) {
1396 struct gl_renderbuffer
*rb
;
1397 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
1399 /* check if deleting currently bound renderbuffer object */
1400 if (rb
== ctx
->CurrentRenderbuffer
) {
1402 assert(rb
->RefCount
>= 2);
1403 _mesa_BindRenderbuffer(GL_RENDERBUFFER_EXT
, 0);
1406 /* Section 4.4.2 (Attaching Images to Framebuffer Objects),
1407 * subsection "Attaching Renderbuffer Images to a Framebuffer,"
1408 * of the OpenGL 3.1 spec says:
1410 * "If a renderbuffer object is deleted while its image is
1411 * attached to one or more attachment points in the currently
1412 * bound framebuffer, then it is as if FramebufferRenderbuffer
1413 * had been called, with a renderbuffer of 0, for each
1414 * attachment point to which this image was attached in the
1415 * currently bound framebuffer. In other words, this
1416 * renderbuffer image is first detached from all attachment
1417 * points in the currently bound framebuffer. Note that the
1418 * renderbuffer image is specifically not detached from any
1419 * non-bound framebuffers. Detaching the image from any
1420 * non-bound framebuffers is the responsibility of the
1423 if (_mesa_is_user_fbo(ctx
->DrawBuffer
)) {
1424 _mesa_detach_renderbuffer(ctx
, ctx
->DrawBuffer
, rb
);
1426 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)
1427 && ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
1428 _mesa_detach_renderbuffer(ctx
, ctx
->ReadBuffer
, rb
);
1431 /* Remove from hash table immediately, to free the ID.
1432 * But the object will not be freed until it's no longer
1433 * referenced anywhere else.
1435 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
1437 if (rb
!= &DummyRenderbuffer
) {
1438 /* no longer referenced by hash table */
1439 _mesa_reference_renderbuffer(&rb
, NULL
);
1447 create_render_buffers(struct gl_context
*ctx
, GLsizei n
, GLuint
*renderbuffers
,
1450 const char *func
= dsa
? "glCreateRenderbuffers" : "glGenRenderbuffers";
1455 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n<0)", func
);
1462 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
1464 for (i
= 0; i
< n
; i
++) {
1465 GLuint name
= first
+ i
;
1466 renderbuffers
[i
] = name
;
1469 allocate_renderbuffer(ctx
, name
, func
);
1471 /* insert a dummy renderbuffer into the hash table */
1472 mtx_lock(&ctx
->Shared
->Mutex
);
1473 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, name
, &DummyRenderbuffer
);
1474 mtx_unlock(&ctx
->Shared
->Mutex
);
1481 _mesa_GenRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1483 GET_CURRENT_CONTEXT(ctx
);
1484 create_render_buffers(ctx
, n
, renderbuffers
, false);
1489 _mesa_CreateRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1491 GET_CURRENT_CONTEXT(ctx
);
1493 if (!ctx
->Extensions
.ARB_direct_state_access
) {
1494 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1495 "glCreateRenderbuffers(GL_ARB_direct_state_access "
1496 "is not supported)");
1500 create_render_buffers(ctx
, n
, renderbuffers
, true);
1505 * Given an internal format token for a render buffer, return the
1506 * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
1507 * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,
1508 * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).
1510 * This is similar to _mesa_base_tex_format() but the set of valid
1511 * internal formats is different.
1513 * Note that even if a format is determined to be legal here, validation
1514 * of the FBO may fail if the format is not supported by the driver/GPU.
1516 * \param internalFormat as passed to glRenderbufferStorage()
1517 * \return the base internal format, or 0 if internalFormat is illegal
1520 _mesa_base_fbo_format(struct gl_context
*ctx
, GLenum internalFormat
)
1523 * Notes: some formats such as alpha, luminance, etc. were added
1524 * with GL_ARB_framebuffer_object.
1526 switch (internalFormat
) {
1532 return (ctx
->API
== API_OPENGL_COMPAT
&&
1533 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_ALPHA
: 0;
1537 case GL_LUMINANCE12
:
1538 case GL_LUMINANCE16
:
1539 return (ctx
->API
== API_OPENGL_COMPAT
&&
1540 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE
: 0;
1541 case GL_LUMINANCE_ALPHA
:
1542 case GL_LUMINANCE4_ALPHA4
:
1543 case GL_LUMINANCE6_ALPHA2
:
1544 case GL_LUMINANCE8_ALPHA8
:
1545 case GL_LUMINANCE12_ALPHA4
:
1546 case GL_LUMINANCE12_ALPHA12
:
1547 case GL_LUMINANCE16_ALPHA16
:
1548 return (ctx
->API
== API_OPENGL_COMPAT
&&
1549 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE_ALPHA
: 0;
1553 case GL_INTENSITY12
:
1554 case GL_INTENSITY16
:
1555 return (ctx
->API
== API_OPENGL_COMPAT
&&
1556 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_INTENSITY
: 0;
1566 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
1568 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
1577 return _mesa_is_desktop_gl(ctx
) ? GL_RGBA
: 0;
1579 case GL_SRGB8_ALPHA8_EXT
:
1580 return _mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
1581 case GL_STENCIL_INDEX
:
1582 case GL_STENCIL_INDEX1_EXT
:
1583 case GL_STENCIL_INDEX4_EXT
:
1584 case GL_STENCIL_INDEX16_EXT
:
1585 /* There are extensions for GL_STENCIL_INDEX1 and GL_STENCIL_INDEX4 in
1586 * OpenGL ES, but Mesa does not currently support them.
1588 return _mesa_is_desktop_gl(ctx
) ? GL_STENCIL_INDEX
: 0;
1589 case GL_STENCIL_INDEX8_EXT
:
1590 return GL_STENCIL_INDEX
;
1591 case GL_DEPTH_COMPONENT
:
1592 case GL_DEPTH_COMPONENT32
:
1593 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_COMPONENT
: 0;
1594 case GL_DEPTH_COMPONENT16
:
1595 case GL_DEPTH_COMPONENT24
:
1596 return GL_DEPTH_COMPONENT
;
1597 case GL_DEPTH_STENCIL
:
1598 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_STENCIL
: 0;
1599 case GL_DEPTH24_STENCIL8
:
1600 return GL_DEPTH_STENCIL
;
1601 case GL_DEPTH_COMPONENT32F
:
1602 return ctx
->Version
>= 30
1603 || (ctx
->API
== API_OPENGL_COMPAT
&&
1604 ctx
->Extensions
.ARB_depth_buffer_float
)
1605 ? GL_DEPTH_COMPONENT
: 0;
1606 case GL_DEPTH32F_STENCIL8
:
1607 return ctx
->Version
>= 30
1608 || (ctx
->API
== API_OPENGL_COMPAT
&&
1609 ctx
->Extensions
.ARB_depth_buffer_float
)
1610 ? GL_DEPTH_STENCIL
: 0;
1613 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_rg
1616 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
1620 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_rg
1623 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
1625 /* signed normalized texture formats */
1629 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1634 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1638 case GL_RGB16_SNORM
:
1639 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1642 case GL_RGBA8_SNORM
:
1643 case GL_RGBA16_SNORM
:
1644 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1646 case GL_ALPHA_SNORM
:
1647 case GL_ALPHA8_SNORM
:
1648 case GL_ALPHA16_SNORM
:
1649 return ctx
->API
== API_OPENGL_COMPAT
&&
1650 ctx
->Extensions
.EXT_texture_snorm
&&
1651 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1652 case GL_LUMINANCE_SNORM
:
1653 case GL_LUMINANCE8_SNORM
:
1654 case GL_LUMINANCE16_SNORM
:
1655 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1657 case GL_LUMINANCE_ALPHA_SNORM
:
1658 case GL_LUMINANCE8_ALPHA8_SNORM
:
1659 case GL_LUMINANCE16_ALPHA16_SNORM
:
1660 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1661 ? GL_LUMINANCE_ALPHA
: 0;
1662 case GL_INTENSITY_SNORM
:
1663 case GL_INTENSITY8_SNORM
:
1664 case GL_INTENSITY16_SNORM
:
1665 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1670 return ((_mesa_is_desktop_gl(ctx
) &&
1671 ctx
->Extensions
.ARB_texture_rg
&&
1672 ctx
->Extensions
.ARB_texture_float
) ||
1673 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1677 return ((_mesa_is_desktop_gl(ctx
) &&
1678 ctx
->Extensions
.ARB_texture_rg
&&
1679 ctx
->Extensions
.ARB_texture_float
) ||
1680 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1684 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_float
)
1688 return ((_mesa_is_desktop_gl(ctx
) &&
1689 ctx
->Extensions
.ARB_texture_float
) ||
1690 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1692 case GL_ALPHA16F_ARB
:
1693 case GL_ALPHA32F_ARB
:
1694 return ctx
->API
== API_OPENGL_COMPAT
&&
1695 ctx
->Extensions
.ARB_texture_float
&&
1696 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1697 case GL_LUMINANCE16F_ARB
:
1698 case GL_LUMINANCE32F_ARB
:
1699 return ctx
->API
== API_OPENGL_COMPAT
&&
1700 ctx
->Extensions
.ARB_texture_float
&&
1701 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
1702 case GL_LUMINANCE_ALPHA16F_ARB
:
1703 case GL_LUMINANCE_ALPHA32F_ARB
:
1704 return ctx
->API
== API_OPENGL_COMPAT
&&
1705 ctx
->Extensions
.ARB_texture_float
&&
1706 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
1707 case GL_INTENSITY16F_ARB
:
1708 case GL_INTENSITY32F_ARB
:
1709 return ctx
->API
== API_OPENGL_COMPAT
&&
1710 ctx
->Extensions
.ARB_texture_float
&&
1711 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
1712 case GL_R11F_G11F_B10F
:
1713 return ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_packed_float
) ||
1714 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1717 case GL_RGBA8UI_EXT
:
1718 case GL_RGBA16UI_EXT
:
1719 case GL_RGBA32UI_EXT
:
1721 case GL_RGBA16I_EXT
:
1722 case GL_RGBA32I_EXT
:
1723 return ctx
->Version
>= 30
1724 || (_mesa_is_desktop_gl(ctx
) &&
1725 ctx
->Extensions
.EXT_texture_integer
) ? GL_RGBA
: 0;
1728 case GL_RGB16UI_EXT
:
1729 case GL_RGB32UI_EXT
:
1733 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_integer
1741 return ctx
->Version
>= 30
1742 || (_mesa_is_desktop_gl(ctx
) &&
1743 ctx
->Extensions
.ARB_texture_rg
&&
1744 ctx
->Extensions
.EXT_texture_integer
) ? GL_RED
: 0;
1752 return ctx
->Version
>= 30
1753 || (_mesa_is_desktop_gl(ctx
) &&
1754 ctx
->Extensions
.ARB_texture_rg
&&
1755 ctx
->Extensions
.EXT_texture_integer
) ? GL_RG
: 0;
1757 case GL_INTENSITY8I_EXT
:
1758 case GL_INTENSITY8UI_EXT
:
1759 case GL_INTENSITY16I_EXT
:
1760 case GL_INTENSITY16UI_EXT
:
1761 case GL_INTENSITY32I_EXT
:
1762 case GL_INTENSITY32UI_EXT
:
1763 return ctx
->API
== API_OPENGL_COMPAT
&&
1764 ctx
->Extensions
.EXT_texture_integer
&&
1765 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
1767 case GL_LUMINANCE8I_EXT
:
1768 case GL_LUMINANCE8UI_EXT
:
1769 case GL_LUMINANCE16I_EXT
:
1770 case GL_LUMINANCE16UI_EXT
:
1771 case GL_LUMINANCE32I_EXT
:
1772 case GL_LUMINANCE32UI_EXT
:
1773 return ctx
->API
== API_OPENGL_COMPAT
&&
1774 ctx
->Extensions
.EXT_texture_integer
&&
1775 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
1777 case GL_LUMINANCE_ALPHA8I_EXT
:
1778 case GL_LUMINANCE_ALPHA8UI_EXT
:
1779 case GL_LUMINANCE_ALPHA16I_EXT
:
1780 case GL_LUMINANCE_ALPHA16UI_EXT
:
1781 case GL_LUMINANCE_ALPHA32I_EXT
:
1782 case GL_LUMINANCE_ALPHA32UI_EXT
:
1783 return ctx
->API
== API_OPENGL_COMPAT
&&
1784 ctx
->Extensions
.EXT_texture_integer
&&
1785 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
1787 case GL_ALPHA8I_EXT
:
1788 case GL_ALPHA8UI_EXT
:
1789 case GL_ALPHA16I_EXT
:
1790 case GL_ALPHA16UI_EXT
:
1791 case GL_ALPHA32I_EXT
:
1792 case GL_ALPHA32UI_EXT
:
1793 return ctx
->API
== API_OPENGL_COMPAT
&&
1794 ctx
->Extensions
.EXT_texture_integer
&&
1795 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1798 return (_mesa_is_desktop_gl(ctx
) &&
1799 ctx
->Extensions
.ARB_texture_rgb10_a2ui
)
1800 || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
1803 return _mesa_is_gles(ctx
) || ctx
->Extensions
.ARB_ES2_compatibility
1812 * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk().
1815 invalidate_rb(GLuint key
, void *data
, void *userData
)
1817 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
1818 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) userData
;
1820 /* If this is a user-created FBO */
1821 if (_mesa_is_user_fbo(fb
)) {
1823 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1824 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
1825 if (att
->Type
== GL_RENDERBUFFER
&&
1826 att
->Renderbuffer
== rb
) {
1827 /* Mark fb status as indeterminate to force re-validation */
1836 /** sentinal value, see below */
1837 #define NO_SAMPLES 1000
1841 * Helper function used by renderbuffer_storage_direct() and
1842 * renderbuffer_storage_target().
1843 * samples will be NO_SAMPLES if called by a non-multisample function.
1846 renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
1847 GLenum internalFormat
, GLsizei width
,
1848 GLsizei height
, GLsizei samples
, const char *func
)
1851 GLenum sample_count_error
;
1853 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
1854 if (baseFormat
== 0) {
1855 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalFormat=%s)",
1856 func
, _mesa_lookup_enum_by_nr(internalFormat
));
1860 if (width
< 0 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
1861 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid width %d)", func
,
1866 if (height
< 0 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
1867 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid height %d)", func
,
1872 if (samples
== NO_SAMPLES
) {
1873 /* NumSamples == 0 indicates non-multisampling */
1877 /* check the sample count;
1878 * note: driver may choose to use more samples than what's requested
1880 sample_count_error
= _mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
1881 internalFormat
, samples
);
1882 if (sample_count_error
!= GL_NO_ERROR
) {
1883 _mesa_error(ctx
, sample_count_error
, "%s(samples)", func
);
1888 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1890 if (rb
->InternalFormat
== internalFormat
&&
1891 rb
->Width
== (GLuint
) width
&&
1892 rb
->Height
== (GLuint
) height
&&
1893 rb
->NumSamples
== samples
) {
1894 /* no change in allocation needed */
1898 /* These MUST get set by the AllocStorage func */
1899 rb
->Format
= MESA_FORMAT_NONE
;
1900 rb
->NumSamples
= samples
;
1902 /* Now allocate the storage */
1903 assert(rb
->AllocStorage
);
1904 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
1905 /* No error - check/set fields now */
1906 /* If rb->Format == MESA_FORMAT_NONE, the format is unsupported. */
1907 assert(rb
->Width
== (GLuint
) width
);
1908 assert(rb
->Height
== (GLuint
) height
);
1909 rb
->InternalFormat
= internalFormat
;
1910 rb
->_BaseFormat
= baseFormat
;
1911 assert(rb
->_BaseFormat
!= 0);
1914 /* Probably ran out of memory - clear the fields */
1917 rb
->Format
= MESA_FORMAT_NONE
;
1918 rb
->InternalFormat
= GL_NONE
;
1919 rb
->_BaseFormat
= GL_NONE
;
1923 /* Invalidate the framebuffers the renderbuffer is attached in. */
1924 if (rb
->AttachedAnytime
) {
1925 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, invalidate_rb
, rb
);
1930 * Helper function used by _mesa_NamedRenderbufferStorage*().
1931 * samples will be NO_SAMPLES if called by a non-multisample function.
1934 renderbuffer_storage_named(GLuint renderbuffer
, GLenum internalFormat
,
1935 GLsizei width
, GLsizei height
, GLsizei samples
,
1938 GET_CURRENT_CONTEXT(ctx
);
1940 if (!ctx
->Extensions
.ARB_direct_state_access
) {
1941 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1942 "%s(GL_ARB_direct_state_access is not supported)", func
);
1946 if (MESA_VERBOSE
& VERBOSE_API
) {
1947 if (samples
== NO_SAMPLES
)
1948 _mesa_debug(ctx
, "%s(%u, %s, %d, %d)\n",
1950 _mesa_lookup_enum_by_nr(internalFormat
),
1953 _mesa_debug(ctx
, "%s(%u, %s, %d, %d, %d)\n",
1955 _mesa_lookup_enum_by_nr(internalFormat
),
1956 width
, height
, samples
);
1959 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1960 if (!rb
|| rb
== &DummyRenderbuffer
) {
1961 /* ID was reserved, but no real renderbuffer object made yet */
1962 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid renderbuffer %u)",
1963 func
, renderbuffer
);
1967 renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
, func
);
1971 * Helper function used by _mesa_RenderbufferStorage() and
1972 * _mesa_RenderbufferStorageMultisample().
1973 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorage().
1976 renderbuffer_storage_target(GLenum target
, GLenum internalFormat
,
1977 GLsizei width
, GLsizei height
, GLsizei samples
,
1980 GET_CURRENT_CONTEXT(ctx
);
1982 if (MESA_VERBOSE
& VERBOSE_API
) {
1983 if (samples
== NO_SAMPLES
)
1984 _mesa_debug(ctx
, "%s(%s, %s, %d, %d)\n",
1986 _mesa_lookup_enum_by_nr(target
),
1987 _mesa_lookup_enum_by_nr(internalFormat
),
1990 _mesa_debug(ctx
, "%s(%s, %s, %d, %d, %d)\n",
1992 _mesa_lookup_enum_by_nr(target
),
1993 _mesa_lookup_enum_by_nr(internalFormat
),
1994 width
, height
, samples
);
1997 if (target
!= GL_RENDERBUFFER_EXT
) {
1998 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
2002 if (!ctx
->CurrentRenderbuffer
) {
2003 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(no renderbuffer bound)",
2008 renderbuffer_storage(ctx
, ctx
->CurrentRenderbuffer
, internalFormat
, width
,
2009 height
, samples
, func
);
2014 _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target
, GLeglImageOES image
)
2016 struct gl_renderbuffer
*rb
;
2017 GET_CURRENT_CONTEXT(ctx
);
2019 if (!ctx
->Extensions
.OES_EGL_image
) {
2020 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2021 "glEGLImageTargetRenderbufferStorageOES(unsupported)");
2025 if (target
!= GL_RENDERBUFFER
) {
2026 _mesa_error(ctx
, GL_INVALID_ENUM
,
2027 "EGLImageTargetRenderbufferStorageOES");
2031 rb
= ctx
->CurrentRenderbuffer
;
2033 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2034 "EGLImageTargetRenderbufferStorageOES");
2038 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2040 ctx
->Driver
.EGLImageTargetRenderbufferStorage(ctx
, rb
, image
);
2045 * Helper function for _mesa_GetRenderbufferParameteriv() and
2046 * _mesa_GetFramebufferAttachmentParameteriv()
2047 * We have to be careful to respect the base format. For example, if a
2048 * renderbuffer/texture was created with internalFormat=GL_RGB but the
2049 * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
2050 * we need to return zero.
2053 get_component_bits(GLenum pname
, GLenum baseFormat
, mesa_format format
)
2055 if (_mesa_base_format_has_channel(baseFormat
, pname
))
2056 return _mesa_get_format_bits(format
, pname
);
2064 _mesa_RenderbufferStorage(GLenum target
, GLenum internalFormat
,
2065 GLsizei width
, GLsizei height
)
2067 /* GL_ARB_fbo says calling this function is equivalent to calling
2068 * glRenderbufferStorageMultisample() with samples=0. We pass in
2069 * a token value here just for error reporting purposes.
2071 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2072 NO_SAMPLES
, "glRenderbufferStorage");
2077 _mesa_RenderbufferStorageMultisample(GLenum target
, GLsizei samples
,
2078 GLenum internalFormat
,
2079 GLsizei width
, GLsizei height
)
2081 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2082 samples
, "glRenderbufferStorageMultisample");
2087 * OpenGL ES version of glRenderBufferStorage.
2090 _es_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
2091 GLsizei width
, GLsizei height
)
2093 switch (internalFormat
) {
2095 /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
2096 /* choose a closest format */
2097 internalFormat
= GL_RGB5
;
2103 renderbuffer_storage_target(target
, internalFormat
, width
, height
, 0,
2104 "glRenderbufferStorageEXT");
2108 _mesa_NamedRenderbufferStorage(GLuint renderbuffer
, GLenum internalformat
,
2109 GLsizei width
, GLsizei height
)
2111 /* GL_ARB_fbo says calling this function is equivalent to calling
2112 * glRenderbufferStorageMultisample() with samples=0. We pass in
2113 * a token value here just for error reporting purposes.
2115 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2116 NO_SAMPLES
, "glNamedRenderbufferStorage");
2120 _mesa_NamedRenderbufferStorageMultisample(GLuint renderbuffer
, GLsizei samples
,
2121 GLenum internalformat
,
2122 GLsizei width
, GLsizei height
)
2124 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2126 "glNamedRenderbufferStorageMultisample");
2131 get_render_buffer_parameteriv(struct gl_context
*ctx
,
2132 struct gl_renderbuffer
*rb
, GLenum pname
,
2133 GLint
*params
, const char *func
)
2135 /* No need to flush here since we're just quering state which is
2136 * not effected by rendering.
2140 case GL_RENDERBUFFER_WIDTH_EXT
:
2141 *params
= rb
->Width
;
2143 case GL_RENDERBUFFER_HEIGHT_EXT
:
2144 *params
= rb
->Height
;
2146 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
2147 *params
= rb
->InternalFormat
;
2149 case GL_RENDERBUFFER_RED_SIZE_EXT
:
2150 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
2151 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
2152 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
2153 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
2154 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
2155 *params
= get_component_bits(pname
, rb
->_BaseFormat
, rb
->Format
);
2157 case GL_RENDERBUFFER_SAMPLES
:
2158 if ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_framebuffer_object
)
2159 || _mesa_is_gles3(ctx
)) {
2160 *params
= rb
->NumSamples
;
2165 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname=%s)", func
,
2166 _mesa_lookup_enum_by_nr(pname
));
2173 _mesa_GetRenderbufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
2175 GET_CURRENT_CONTEXT(ctx
);
2177 if (target
!= GL_RENDERBUFFER_EXT
) {
2178 _mesa_error(ctx
, GL_INVALID_ENUM
,
2179 "glGetRenderbufferParameterivEXT(target)");
2183 if (!ctx
->CurrentRenderbuffer
) {
2184 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetRenderbufferParameterivEXT"
2185 "(no renderbuffer bound)");
2189 get_render_buffer_parameteriv(ctx
, ctx
->CurrentRenderbuffer
, pname
,
2190 params
, "glGetRenderbufferParameteriv");
2195 _mesa_GetNamedRenderbufferParameteriv(GLuint renderbuffer
, GLenum pname
,
2198 GET_CURRENT_CONTEXT(ctx
);
2200 if (!ctx
->Extensions
.ARB_direct_state_access
) {
2201 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2202 "glGetNamedRenderbufferParameteriv("
2203 "GL_ARB_direct_state_access is not supported)");
2207 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2208 if (!rb
|| rb
== &DummyRenderbuffer
) {
2209 /* ID was reserved, but no real renderbuffer object made yet */
2210 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetNamedRenderbufferParameteriv"
2211 "(invalid renderbuffer %i)", renderbuffer
);
2215 get_render_buffer_parameteriv(ctx
, rb
, pname
, params
,
2216 "glGetNamedRenderbufferParameteriv");
2220 GLboolean GLAPIENTRY
2221 _mesa_IsFramebuffer(GLuint framebuffer
)
2223 GET_CURRENT_CONTEXT(ctx
);
2224 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
2226 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2227 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
2235 * Check if any of the attachments of the given framebuffer are textures
2236 * (render to texture). Call ctx->Driver.RenderTexture() for such
2240 check_begin_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2243 assert(ctx
->Driver
.RenderTexture
);
2245 if (_mesa_is_winsys_fbo(fb
))
2246 return; /* can't render to texture with winsys framebuffers */
2248 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2249 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2250 if (att
->Texture
&& att
->Renderbuffer
->TexImage
2251 && driver_RenderTexture_is_safe(att
)) {
2252 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
2259 * Examine all the framebuffer's attachments to see if any are textures.
2260 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
2261 * notify the device driver that the texture image may have changed.
2264 check_end_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2266 /* Skip if we know NeedsFinishRenderTexture won't be set. */
2267 if (_mesa_is_winsys_fbo(fb
) && !ctx
->Driver
.BindRenderbufferTexImage
)
2270 if (ctx
->Driver
.FinishRenderTexture
) {
2272 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2273 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2274 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
2275 if (rb
&& rb
->NeedsFinishRenderTexture
) {
2276 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
2284 bind_framebuffer(GLenum target
, GLuint framebuffer
, bool allow_user_names
)
2286 struct gl_framebuffer
*newDrawFb
, *newReadFb
;
2287 struct gl_framebuffer
*oldDrawFb
, *oldReadFb
;
2288 GLboolean bindReadBuf
, bindDrawBuf
;
2289 GET_CURRENT_CONTEXT(ctx
);
2292 case GL_DRAW_FRAMEBUFFER_EXT
:
2293 bindDrawBuf
= GL_TRUE
;
2294 bindReadBuf
= GL_FALSE
;
2296 case GL_READ_FRAMEBUFFER_EXT
:
2297 bindDrawBuf
= GL_FALSE
;
2298 bindReadBuf
= GL_TRUE
;
2300 case GL_FRAMEBUFFER_EXT
:
2301 bindDrawBuf
= GL_TRUE
;
2302 bindReadBuf
= GL_TRUE
;
2305 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
2310 /* Binding a user-created framebuffer object */
2311 newDrawFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2312 if (newDrawFb
== &DummyFramebuffer
) {
2313 /* ID was reserved, but no real framebuffer object made yet */
2316 else if (!newDrawFb
&& !allow_user_names
) {
2317 /* All FBO IDs must be Gen'd */
2318 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindFramebuffer(buffer)");
2323 /* create new framebuffer object */
2324 newDrawFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
2326 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
2329 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newDrawFb
);
2331 newReadFb
= newDrawFb
;
2334 /* Binding the window system framebuffer (which was originally set
2335 * with MakeCurrent).
2337 newDrawFb
= ctx
->WinSysDrawBuffer
;
2338 newReadFb
= ctx
->WinSysReadBuffer
;
2342 assert(newDrawFb
!= &DummyFramebuffer
);
2344 /* save pointers to current/old framebuffers */
2345 oldDrawFb
= ctx
->DrawBuffer
;
2346 oldReadFb
= ctx
->ReadBuffer
;
2348 /* check if really changing bindings */
2349 if (oldDrawFb
== newDrawFb
)
2350 bindDrawBuf
= GL_FALSE
;
2351 if (oldReadFb
== newReadFb
)
2352 bindReadBuf
= GL_FALSE
;
2355 * OK, now bind the new Draw/Read framebuffers, if they're changing.
2357 * We also check if we're beginning and/or ending render-to-texture.
2358 * When a framebuffer with texture attachments is unbound, call
2359 * ctx->Driver.FinishRenderTexture().
2360 * When a framebuffer with texture attachments is bound, call
2361 * ctx->Driver.RenderTexture().
2363 * Note that if the ReadBuffer has texture attachments we don't consider
2364 * that a render-to-texture case.
2367 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2369 /* check if old readbuffer was render-to-texture */
2370 check_end_texture_render(ctx
, oldReadFb
);
2372 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newReadFb
);
2376 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2378 /* check if old framebuffer had any texture attachments */
2380 check_end_texture_render(ctx
, oldDrawFb
);
2382 /* check if newly bound framebuffer has any texture attachments */
2383 check_begin_texture_render(ctx
, newDrawFb
);
2385 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newDrawFb
);
2388 if ((bindDrawBuf
|| bindReadBuf
) && ctx
->Driver
.BindFramebuffer
) {
2389 ctx
->Driver
.BindFramebuffer(ctx
, target
, newDrawFb
, newReadFb
);
2394 _mesa_BindFramebuffer(GLenum target
, GLuint framebuffer
)
2396 GET_CURRENT_CONTEXT(ctx
);
2398 /* OpenGL ES glBindFramebuffer and glBindFramebufferOES use this same entry
2399 * point, but they allow the use of user-generated names.
2401 bind_framebuffer(target
, framebuffer
, _mesa_is_gles(ctx
));
2406 _mesa_BindFramebufferEXT(GLenum target
, GLuint framebuffer
)
2408 /* This function should not be in the dispatch table for core profile /
2409 * OpenGL 3.1, so execution should never get here in those cases -- no
2410 * need for an explicit test.
2412 bind_framebuffer(target
, framebuffer
, true);
2417 _mesa_DeleteFramebuffers(GLsizei n
, const GLuint
*framebuffers
)
2420 GET_CURRENT_CONTEXT(ctx
);
2423 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteFramebuffers(n < 0)");
2427 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2429 for (i
= 0; i
< n
; i
++) {
2430 if (framebuffers
[i
] > 0) {
2431 struct gl_framebuffer
*fb
;
2432 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
2434 assert(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
2436 /* check if deleting currently bound framebuffer object */
2437 if (fb
== ctx
->DrawBuffer
) {
2439 assert(fb
->RefCount
>= 2);
2440 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, 0);
2442 if (fb
== ctx
->ReadBuffer
) {
2444 assert(fb
->RefCount
>= 2);
2445 _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER
, 0);
2448 /* remove from hash table immediately, to free the ID */
2449 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
2451 if (fb
!= &DummyFramebuffer
) {
2452 /* But the object will not be freed until it's no longer
2453 * bound in any context.
2455 _mesa_reference_framebuffer(&fb
, NULL
);
2464 * This is the implementation for glGenFramebuffers and glCreateFramebuffers.
2465 * It is not exposed to the rest of Mesa to encourage the use of
2466 * nameless buffers in driver internals.
2469 create_framebuffers(GLsizei n
, GLuint
*framebuffers
, bool dsa
)
2471 GET_CURRENT_CONTEXT(ctx
);
2474 struct gl_framebuffer
*fb
;
2476 const char *func
= dsa
? "glCreateFramebuffers" : "glGenFramebuffers";
2478 if (dsa
&& !ctx
->Extensions
.ARB_direct_state_access
) {
2479 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2480 "%s(GL_ARB_direct_state_access is not supported)", func
);
2485 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n < 0)", func
);
2492 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
2494 for (i
= 0; i
< n
; i
++) {
2495 GLuint name
= first
+ i
;
2496 framebuffers
[i
] = name
;
2499 fb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffers
[i
]);
2501 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
2506 fb
= &DummyFramebuffer
;
2508 mtx_lock(&ctx
->Shared
->Mutex
);
2509 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, name
, fb
);
2510 mtx_unlock(&ctx
->Shared
->Mutex
);
2516 _mesa_GenFramebuffers(GLsizei n
, GLuint
*framebuffers
)
2518 create_framebuffers(n
, framebuffers
, false);
2523 _mesa_CreateFramebuffers(GLsizei n
, GLuint
*framebuffers
)
2525 create_framebuffers(n
, framebuffers
, true);
2530 _mesa_check_framebuffer_status(struct gl_context
*ctx
,
2531 struct gl_framebuffer
*buffer
)
2533 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
2535 if (_mesa_is_winsys_fbo(buffer
)) {
2536 /* EGL_KHR_surfaceless_context allows the winsys FBO to be incomplete. */
2537 if (buffer
!= &IncompleteFramebuffer
) {
2538 return GL_FRAMEBUFFER_COMPLETE_EXT
;
2540 return GL_FRAMEBUFFER_UNDEFINED
;
2544 /* No need to flush here */
2546 if (buffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE
) {
2547 _mesa_test_framebuffer_completeness(ctx
, buffer
);
2550 return buffer
->_Status
;
2555 _mesa_CheckFramebufferStatus(GLenum target
)
2557 struct gl_framebuffer
*fb
;
2558 GET_CURRENT_CONTEXT(ctx
);
2560 if (MESA_VERBOSE
& VERBOSE_API
)
2561 _mesa_debug(ctx
, "glCheckFramebufferStatus(%s)\n",
2562 _mesa_lookup_enum_by_nr(target
));
2564 fb
= get_framebuffer_target(ctx
, target
);
2566 _mesa_error(ctx
, GL_INVALID_ENUM
,
2567 "glCheckFramebufferStatus(invalid target %s)",
2568 _mesa_lookup_enum_by_nr(target
));
2572 return _mesa_check_framebuffer_status(ctx
, fb
);
2577 _mesa_CheckNamedFramebufferStatus(GLuint framebuffer
, GLenum target
)
2579 struct gl_framebuffer
*fb
;
2580 GET_CURRENT_CONTEXT(ctx
);
2582 if (!ctx
->Extensions
.ARB_direct_state_access
) {
2583 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2584 "glCheckNamedFramebufferStatus(GL_ARB_direct_state_access "
2585 "is not supported)");
2589 /* Validate the target (for conformance's sake) and grab a reference to the
2590 * default framebuffer in case framebuffer = 0.
2591 * Section 9.4 Framebuffer Completeness of the OpenGL 4.5 core spec
2592 * (30.10.2014, PDF page 336) says:
2593 * "If framebuffer is zero, then the status of the default read or
2594 * draw framebuffer (as determined by target) is returned."
2597 case GL_DRAW_FRAMEBUFFER
:
2598 case GL_FRAMEBUFFER
:
2599 fb
= ctx
->WinSysDrawBuffer
;
2601 case GL_READ_FRAMEBUFFER
:
2602 fb
= ctx
->WinSysReadBuffer
;
2605 _mesa_error(ctx
, GL_INVALID_ENUM
,
2606 "glCheckNamedFramebufferStatus(invalid target %s)",
2607 _mesa_lookup_enum_by_nr(target
));
2612 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
2613 "glCheckNamedFramebufferStatus");
2618 return _mesa_check_framebuffer_status(ctx
, fb
);
2623 * Replicate the src attachment point. Used by framebuffer_texture() when
2624 * the same texture is attached at GL_DEPTH_ATTACHMENT and
2625 * GL_STENCIL_ATTACHMENT.
2628 reuse_framebuffer_texture_attachment(struct gl_framebuffer
*fb
,
2629 gl_buffer_index dst
,
2630 gl_buffer_index src
)
2632 struct gl_renderbuffer_attachment
*dst_att
= &fb
->Attachment
[dst
];
2633 struct gl_renderbuffer_attachment
*src_att
= &fb
->Attachment
[src
];
2635 assert(src_att
->Texture
!= NULL
);
2636 assert(src_att
->Renderbuffer
!= NULL
);
2638 _mesa_reference_texobj(&dst_att
->Texture
, src_att
->Texture
);
2639 _mesa_reference_renderbuffer(&dst_att
->Renderbuffer
, src_att
->Renderbuffer
);
2640 dst_att
->Type
= src_att
->Type
;
2641 dst_att
->Complete
= src_att
->Complete
;
2642 dst_att
->TextureLevel
= src_att
->TextureLevel
;
2643 dst_att
->Zoffset
= src_att
->Zoffset
;
2648 * Common code called by gl*FramebufferTexture*() to retrieve the correct
2649 * texture object pointer.
2651 * \param texObj where the pointer to the texture object is returned. Note
2652 * that a successful call may return texObj = NULL.
2654 * \return true if no errors, false if errors
2657 get_texture_for_framebuffer(struct gl_context
*ctx
, GLuint texture
,
2658 bool layered
, const char *caller
,
2659 struct gl_texture_object
**texObj
)
2661 *texObj
= NULL
; /* This will get returned if texture = 0. */
2666 *texObj
= _mesa_lookup_texture(ctx
, texture
);
2667 if (*texObj
== NULL
|| (*texObj
)->Target
== 0) {
2668 /* Can't render to a non-existent texture object.
2670 * The OpenGL 4.5 core spec (02.02.2015) in Section 9.2 Binding and
2671 * Managing Framebuffer Objects specifies a different error
2672 * depending upon the calling function (PDF pages 325-328).
2673 * *FramebufferTexture (where layered = GL_TRUE) throws invalid
2674 * value, while the other commands throw invalid operation (where
2675 * layered = GL_FALSE).
2677 const GLenum error
= layered
? GL_INVALID_VALUE
:
2678 GL_INVALID_OPERATION
;
2679 _mesa_error(ctx
, error
,
2680 "%s(non-existent texture %u)", caller
, texture
);
2689 * Common code called by gl*FramebufferTexture() to verify the texture target
2690 * and decide whether or not the attachment should truly be considered
2693 * \param layered true if attachment should be considered layered, false if
2696 * \return true if no errors, false if errors
2699 check_layered_texture_target(struct gl_context
*ctx
, GLenum target
,
2700 const char *caller
, GLboolean
*layered
)
2706 case GL_TEXTURE_1D_ARRAY_EXT
:
2707 case GL_TEXTURE_2D_ARRAY_EXT
:
2708 case GL_TEXTURE_CUBE_MAP
:
2709 case GL_TEXTURE_CUBE_MAP_ARRAY
:
2710 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
2714 case GL_TEXTURE_RECTANGLE
:
2715 case GL_TEXTURE_2D_MULTISAMPLE
:
2716 /* These texture types are valid to pass to
2717 * glFramebufferTexture(), but since they aren't layered, it
2718 * is equivalent to calling glFramebufferTexture{1D,2D}().
2720 *layered
= GL_FALSE
;
2724 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2725 "%s(invalid texture target %s)", caller
,
2726 _mesa_lookup_enum_by_nr(target
));
2732 * Common code called by gl*FramebufferTextureLayer() to verify the texture
2735 * \return true if no errors, false if errors
2738 check_texture_target(struct gl_context
*ctx
, GLenum target
,
2741 /* We're being called by glFramebufferTextureLayer().
2742 * The only legal texture types for that function are 3D,
2743 * cube-map, and 1D/2D/cube-map array textures.
2747 case GL_TEXTURE_1D_ARRAY
:
2748 case GL_TEXTURE_2D_ARRAY
:
2749 case GL_TEXTURE_CUBE_MAP_ARRAY
:
2750 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
2752 case GL_TEXTURE_CUBE_MAP
:
2753 /* This target is valid in TextureLayer when ARB_direct_state_access
2754 * or OpenGL 4.5 is supported.
2756 return ctx
->Extensions
.ARB_direct_state_access
;
2759 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2760 "%s(invalid texture target %s)", caller
,
2761 _mesa_lookup_enum_by_nr(target
));
2767 * Common code called by glFramebufferTexture*D() to verify the texture
2770 * \return true if no errors, false if errors
2773 check_textarget(struct gl_context
*ctx
, int dims
, GLenum target
,
2774 GLenum textarget
, const char *caller
)
2780 switch (textarget
) {
2783 case GL_TEXTURE_1D_ARRAY
:
2784 err
= !ctx
->Extensions
.EXT_texture_array
;
2791 switch (textarget
) {
2794 case GL_TEXTURE_RECTANGLE
:
2795 err
= _mesa_is_gles(ctx
)
2796 || !ctx
->Extensions
.NV_texture_rectangle
;
2798 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
2799 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
2800 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
2801 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
2802 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
2803 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
2804 err
= !ctx
->Extensions
.ARB_texture_cube_map
;
2806 case GL_TEXTURE_2D_ARRAY
:
2807 err
= (_mesa_is_gles(ctx
) && ctx
->Version
< 30)
2808 || !ctx
->Extensions
.EXT_texture_array
;
2810 case GL_TEXTURE_2D_MULTISAMPLE
:
2811 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
2812 err
= _mesa_is_gles(ctx
)
2813 || !ctx
->Extensions
.ARB_texture_multisample
;
2820 if (textarget
!= GL_TEXTURE_3D
)
2828 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2829 "%s(invalid textarget %s)",
2830 caller
, _mesa_lookup_enum_by_nr(textarget
));
2834 /* Make sure textarget is consistent with the texture's type */
2835 err
= (target
== GL_TEXTURE_CUBE_MAP
) ?
2836 !_mesa_is_cube_face(textarget
): (target
!= textarget
);
2839 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2840 "%s(mismatched texture target)", caller
);
2849 * Common code called by gl*FramebufferTextureLayer() and
2850 * glFramebufferTexture3D() to validate the layer.
2852 * \return true if no errors, false if errors
2855 check_layer(struct gl_context
*ctx
, GLenum target
, GLint layer
,
2858 /* Page 306 (page 328 of the PDF) of the OpenGL 4.5 (Core Profile)
2861 * "An INVALID_VALUE error is generated if texture is non-zero
2862 * and layer is negative."
2865 _mesa_error(ctx
, GL_INVALID_VALUE
,
2866 "%s(layer %u < 0)", caller
, layer
);
2870 if (target
== GL_TEXTURE_3D
) {
2871 const GLuint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
2872 if (layer
>= maxSize
) {
2873 _mesa_error(ctx
, GL_INVALID_VALUE
,
2874 "%s(invalid layer %u)", caller
, layer
);
2878 else if ((target
== GL_TEXTURE_1D_ARRAY
) ||
2879 (target
== GL_TEXTURE_2D_ARRAY
) ||
2880 (target
== GL_TEXTURE_CUBE_MAP_ARRAY
) ||
2881 (target
== GL_TEXTURE_2D_MULTISAMPLE_ARRAY
)) {
2882 if (layer
>= ctx
->Const
.MaxArrayTextureLayers
) {
2883 _mesa_error(ctx
, GL_INVALID_VALUE
,
2884 "%s(layer %u >= GL_MAX_ARRAY_TEXTURE_LAYERS)",
2889 else if (target
== GL_TEXTURE_CUBE_MAP
) {
2891 _mesa_error(ctx
, GL_INVALID_VALUE
,
2892 "%s(layer %u >= 6)", caller
, layer
);
2902 * Common code called by all gl*FramebufferTexture*() entry points to verify
2905 * \return true if no errors, false if errors
2908 check_level(struct gl_context
*ctx
, GLenum target
, GLint level
,
2912 (level
>= _mesa_max_texture_levels(ctx
, target
))) {
2913 _mesa_error(ctx
, GL_INVALID_VALUE
,
2914 "%s(invalid level %d)", caller
, level
);
2923 _mesa_framebuffer_texture(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
2925 struct gl_texture_object
*texObj
, GLenum textarget
,
2926 GLint level
, GLuint layer
, GLboolean layered
,
2929 struct gl_renderbuffer_attachment
*att
;
2931 /* The window-system framebuffer object is immutable */
2932 if (_mesa_is_winsys_fbo(fb
)) {
2933 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(window-system framebuffer)",
2938 /* Not a hash lookup, so we can afford to get the attachment here. */
2939 att
= get_attachment(ctx
, fb
, attachment
);
2941 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", caller
,
2942 _mesa_lookup_enum_by_nr(attachment
));
2946 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2948 mtx_lock(&fb
->Mutex
);
2950 if (attachment
== GL_DEPTH_ATTACHMENT
&&
2951 texObj
== fb
->Attachment
[BUFFER_STENCIL
].Texture
&&
2952 level
== fb
->Attachment
[BUFFER_STENCIL
].TextureLevel
&&
2953 _mesa_tex_target_to_face(textarget
) ==
2954 fb
->Attachment
[BUFFER_STENCIL
].CubeMapFace
&&
2955 layer
== fb
->Attachment
[BUFFER_STENCIL
].Zoffset
) {
2956 /* The texture object is already attached to the stencil attachment
2957 * point. Don't create a new renderbuffer; just reuse the stencil
2958 * attachment's. This is required to prevent a GL error in
2959 * glGetFramebufferAttachmentParameteriv(GL_DEPTH_STENCIL).
2961 reuse_framebuffer_texture_attachment(fb
, BUFFER_DEPTH
,
2963 } else if (attachment
== GL_STENCIL_ATTACHMENT
&&
2964 texObj
== fb
->Attachment
[BUFFER_DEPTH
].Texture
&&
2965 level
== fb
->Attachment
[BUFFER_DEPTH
].TextureLevel
&&
2966 _mesa_tex_target_to_face(textarget
) ==
2967 fb
->Attachment
[BUFFER_DEPTH
].CubeMapFace
&&
2968 layer
== fb
->Attachment
[BUFFER_DEPTH
].Zoffset
) {
2969 /* As above, but with depth and stencil transposed. */
2970 reuse_framebuffer_texture_attachment(fb
, BUFFER_STENCIL
,
2973 set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
2974 level
, layer
, layered
);
2976 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
2977 /* Above we created a new renderbuffer and attached it to the
2978 * depth attachment point. Now attach it to the stencil attachment
2981 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
2982 reuse_framebuffer_texture_attachment(fb
,BUFFER_STENCIL
,
2987 /* Set the render-to-texture flag. We'll check this flag in
2988 * glTexImage() and friends to determine if we need to revalidate
2989 * any FBOs that might be rendering into this texture.
2990 * This flag never gets cleared since it's non-trivial to determine
2991 * when all FBOs might be done rendering to this texture. That's OK
2992 * though since it's uncommon to render to a texture then repeatedly
2993 * call glTexImage() to change images in the texture.
2995 texObj
->_RenderToTexture
= GL_TRUE
;
2998 remove_attachment(ctx
, att
);
2999 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3000 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3001 remove_attachment(ctx
, &fb
->Attachment
[BUFFER_STENCIL
]);
3005 invalidate_framebuffer(fb
);
3007 mtx_unlock(&fb
->Mutex
);
3012 framebuffer_texture_with_dims(int dims
, GLenum target
,
3013 GLenum attachment
, GLenum textarget
,
3014 GLuint texture
, GLint level
, GLint layer
,
3017 GET_CURRENT_CONTEXT(ctx
);
3018 struct gl_framebuffer
*fb
;
3019 struct gl_texture_object
*texObj
;
3021 /* Get the framebuffer object */
3022 fb
= get_framebuffer_target(ctx
, target
);
3024 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", caller
,
3025 _mesa_lookup_enum_by_nr(target
));
3029 /* Get the texture object */
3030 if (!get_texture_for_framebuffer(ctx
, texture
, false, caller
, &texObj
))
3034 if (!check_textarget(ctx
, dims
, texObj
->Target
, textarget
, caller
))
3037 if ((dims
== 3) && !check_layer(ctx
, texObj
->Target
, layer
, caller
))
3041 if (!check_level(ctx
, textarget
, level
, caller
))
3044 _mesa_framebuffer_texture(ctx
, fb
, attachment
, texObj
, textarget
, level
,
3045 layer
, GL_FALSE
, caller
);
3050 _mesa_FramebufferTexture1D(GLenum target
, GLenum attachment
,
3051 GLenum textarget
, GLuint texture
, GLint level
)
3053 framebuffer_texture_with_dims(1, target
, attachment
, textarget
, texture
,
3054 level
, 0, "glFramebufferTexture1D");
3059 _mesa_FramebufferTexture2D(GLenum target
, GLenum attachment
,
3060 GLenum textarget
, GLuint texture
, GLint level
)
3062 framebuffer_texture_with_dims(2, target
, attachment
, textarget
, texture
,
3063 level
, 0, "glFramebufferTexture2D");
3068 _mesa_FramebufferTexture3D(GLenum target
, GLenum attachment
,
3069 GLenum textarget
, GLuint texture
,
3070 GLint level
, GLint layer
)
3072 framebuffer_texture_with_dims(3, target
, attachment
, textarget
, texture
,
3073 level
, layer
, "glFramebufferTexture3D");
3078 _mesa_FramebufferTextureLayer(GLenum target
, GLenum attachment
,
3079 GLuint texture
, GLint level
, GLint layer
)
3081 GET_CURRENT_CONTEXT(ctx
);
3082 struct gl_framebuffer
*fb
;
3083 struct gl_texture_object
*texObj
;
3084 GLenum textarget
= 0;
3086 const char *func
= "glFramebufferTextureLayer";
3088 /* Get the framebuffer object */
3089 fb
= get_framebuffer_target(ctx
, target
);
3091 _mesa_error(ctx
, GL_INVALID_ENUM
,
3092 "glFramebufferTextureLayer(invalid target %s)",
3093 _mesa_lookup_enum_by_nr(target
));
3097 /* Get the texture object */
3098 if (!get_texture_for_framebuffer(ctx
, texture
, false, func
, &texObj
))
3102 if (!check_texture_target(ctx
, texObj
->Target
, func
))
3105 if (!check_layer(ctx
, texObj
->Target
, layer
, func
))
3108 if (!check_level(ctx
, texObj
->Target
, level
, func
))
3111 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3112 assert(layer
>= 0 && layer
< 6);
3113 textarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ layer
;
3118 _mesa_framebuffer_texture(ctx
, fb
, attachment
, texObj
, textarget
, level
,
3119 layer
, GL_FALSE
, func
);
3124 _mesa_NamedFramebufferTextureLayer(GLuint framebuffer
, GLenum attachment
,
3125 GLuint texture
, GLint level
, GLint layer
)
3127 GET_CURRENT_CONTEXT(ctx
);
3128 struct gl_framebuffer
*fb
;
3129 struct gl_texture_object
*texObj
;
3130 GLenum textarget
= 0;
3132 const char *func
= "glNamedFramebufferTextureLayer";
3134 if (!ctx
->Extensions
.ARB_direct_state_access
) {
3135 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3136 "%s(GL_ARB_direct_state_access is not supported)", func
);
3140 /* Get the framebuffer object */
3141 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
, func
);
3145 /* Get the texture object */
3146 if (!get_texture_for_framebuffer(ctx
, texture
, false, func
, &texObj
))
3150 if (!check_texture_target(ctx
, texObj
->Target
, func
))
3153 if (!check_layer(ctx
, texObj
->Target
, layer
, func
))
3156 if (!check_level(ctx
, texObj
->Target
, level
, func
))
3159 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3160 assert(layer
>= 0 && layer
< 6);
3161 textarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ layer
;
3166 _mesa_framebuffer_texture(ctx
, fb
, attachment
, texObj
, textarget
, level
,
3167 layer
, GL_FALSE
, func
);
3172 _mesa_FramebufferTexture(GLenum target
, GLenum attachment
,
3173 GLuint texture
, GLint level
)
3175 GET_CURRENT_CONTEXT(ctx
);
3176 struct gl_framebuffer
*fb
;
3177 struct gl_texture_object
*texObj
;
3180 const char *func
= "FramebufferTexture";
3182 if (!_mesa_has_geometry_shaders(ctx
)) {
3183 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3184 "unsupported function (glFramebufferTexture) called");
3188 /* Get the framebuffer object */
3189 fb
= get_framebuffer_target(ctx
, target
);
3191 _mesa_error(ctx
, GL_INVALID_ENUM
,
3192 "glFramebufferTexture(invalid target %s)",
3193 _mesa_lookup_enum_by_nr(target
));
3197 /* Get the texture object */
3198 if (!get_texture_for_framebuffer(ctx
, texture
, true, func
, &texObj
))
3202 if (!check_layered_texture_target(ctx
, texObj
->Target
, func
, &layered
))
3205 if (!check_level(ctx
, texObj
->Target
, level
, func
))
3209 _mesa_framebuffer_texture(ctx
, fb
, attachment
, texObj
, 0, level
,
3215 _mesa_NamedFramebufferTexture(GLuint framebuffer
, GLenum attachment
,
3216 GLuint texture
, GLint level
)
3218 GET_CURRENT_CONTEXT(ctx
);
3219 struct gl_framebuffer
*fb
;
3220 struct gl_texture_object
*texObj
;
3223 const char *func
= "glNamedFramebufferTexture";
3225 if (!ctx
->Extensions
.ARB_direct_state_access
) {
3226 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3227 "%s(GL_ARB_direct_state_access is not supported)", func
);
3231 if (!_mesa_has_geometry_shaders(ctx
)) {
3232 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3233 "unsupported function (glNamedFramebufferTexture) called");
3237 /* Get the framebuffer object */
3238 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
, func
);
3242 /* Get the texture object */
3243 if (!get_texture_for_framebuffer(ctx
, texture
, true, func
, &texObj
))
3247 if (!check_layered_texture_target(ctx
, texObj
->Target
, func
,
3251 if (!check_level(ctx
, texObj
->Target
, level
, func
))
3255 _mesa_framebuffer_texture(ctx
, fb
, attachment
, texObj
, 0, level
,
3261 _mesa_framebuffer_renderbuffer(struct gl_context
*ctx
,
3262 struct gl_framebuffer
*fb
,
3264 struct gl_renderbuffer
*rb
,
3267 struct gl_renderbuffer_attachment
*att
;
3269 if (_mesa_is_winsys_fbo(fb
)) {
3270 /* Can't attach new renderbuffers to a window system framebuffer */
3271 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3272 "%s(window-system framebuffer)", func
);
3276 att
= get_attachment(ctx
, fb
, attachment
);
3278 _mesa_error(ctx
, GL_INVALID_ENUM
,
3279 "%s(invalid attachment %s)", func
,
3280 _mesa_lookup_enum_by_nr(attachment
));
3284 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
&&
3285 rb
&& rb
->Format
!= MESA_FORMAT_NONE
) {
3286 /* make sure the renderbuffer is a depth/stencil format */
3287 const GLenum baseFormat
= _mesa_get_format_base_format(rb
->Format
);
3288 if (baseFormat
!= GL_DEPTH_STENCIL
) {
3289 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3290 "%s(renderbuffer is not DEPTH_STENCIL format)", func
);
3295 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3297 assert(ctx
->Driver
.FramebufferRenderbuffer
);
3298 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
3300 /* Some subsequent GL commands may depend on the framebuffer's visual
3301 * after the binding is updated. Update visual info now.
3303 _mesa_update_framebuffer_visual(ctx
, fb
);
3308 _mesa_FramebufferRenderbuffer(GLenum target
, GLenum attachment
,
3309 GLenum renderbuffertarget
,
3310 GLuint renderbuffer
)
3312 struct gl_framebuffer
*fb
;
3313 struct gl_renderbuffer
*rb
;
3314 GET_CURRENT_CONTEXT(ctx
);
3316 fb
= get_framebuffer_target(ctx
, target
);
3318 _mesa_error(ctx
, GL_INVALID_ENUM
,
3319 "glFramebufferRenderbuffer(invalid target %s)",
3320 _mesa_lookup_enum_by_nr(target
));
3324 if (renderbuffertarget
!= GL_RENDERBUFFER
) {
3325 _mesa_error(ctx
, GL_INVALID_ENUM
,
3326 "glFramebufferRenderbuffer(renderbuffertarget is not "
3327 "GL_RENDERBUFFER)");
3332 rb
= _mesa_lookup_renderbuffer_err(ctx
, renderbuffer
,
3333 "glFramebufferRenderbuffer");
3338 /* remove renderbuffer attachment */
3342 _mesa_framebuffer_renderbuffer(ctx
, fb
, attachment
, rb
,
3343 "glFramebufferRenderbuffer");
3348 _mesa_NamedFramebufferRenderbuffer(GLuint framebuffer
, GLenum attachment
,
3349 GLenum renderbuffertarget
,
3350 GLuint renderbuffer
)
3352 struct gl_framebuffer
*fb
;
3353 struct gl_renderbuffer
*rb
;
3354 GET_CURRENT_CONTEXT(ctx
);
3356 if (!ctx
->Extensions
.ARB_direct_state_access
) {
3357 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3358 "glNamedFramebufferRenderbuffer(GL_ARB_direct_state_access "
3359 "is not supported)");
3363 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3364 "glNamedFramebufferRenderbuffer");
3366 if (renderbuffertarget
!= GL_RENDERBUFFER
) {
3367 _mesa_error(ctx
, GL_INVALID_ENUM
,
3368 "glNamedFramebufferRenderbuffer(renderbuffertarget is not "
3369 "GL_RENDERBUFFER)");
3374 rb
= _mesa_lookup_renderbuffer_err(ctx
, renderbuffer
,
3375 "glNamedFramebufferRenderbuffer");
3380 /* remove renderbuffer attachment */
3384 _mesa_framebuffer_renderbuffer(ctx
, fb
, attachment
, rb
,
3385 "glNamedFramebufferRenderbuffer");
3390 _mesa_get_framebuffer_attachment_parameter(struct gl_context
*ctx
,
3391 struct gl_framebuffer
*buffer
,
3392 GLenum attachment
, GLenum pname
,
3393 GLint
*params
, const char *caller
)
3395 const struct gl_renderbuffer_attachment
*att
;
3398 /* The error differs in GL and GLES. */
3399 err
= _mesa_is_desktop_gl(ctx
) ? GL_INVALID_OPERATION
: GL_INVALID_ENUM
;
3401 if (_mesa_is_winsys_fbo(buffer
)) {
3402 /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
3405 * "If the framebuffer currently bound to target is zero, then
3406 * INVALID_OPERATION is generated."
3408 * The EXT_framebuffer_object spec has the same wording, and the
3409 * OES_framebuffer_object spec refers to the EXT_framebuffer_object
3412 if ((!_mesa_is_desktop_gl(ctx
) ||
3413 !ctx
->Extensions
.ARB_framebuffer_object
)
3414 && !_mesa_is_gles3(ctx
)) {
3415 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3416 "%s(window-system framebuffer)", caller
);
3420 if (_mesa_is_gles3(ctx
) && attachment
!= GL_BACK
&&
3421 attachment
!= GL_DEPTH
&& attachment
!= GL_STENCIL
) {
3422 _mesa_error(ctx
, GL_INVALID_ENUM
,
3423 "%s(invalid attachment %s)", caller
,
3424 _mesa_lookup_enum_by_nr(attachment
));
3427 /* the default / window-system FBO */
3428 att
= _mesa_get_fb0_attachment(ctx
, buffer
, attachment
);
3431 /* user-created framebuffer FBO */
3432 att
= get_attachment(ctx
, buffer
, attachment
);
3436 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", caller
,
3437 _mesa_lookup_enum_by_nr(attachment
));
3441 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3442 const struct gl_renderbuffer_attachment
*depthAtt
, *stencilAtt
;
3443 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
) {
3444 /* This behavior is first specified in OpenGL 4.4 specification.
3446 * From the OpenGL 4.4 spec page 275:
3447 * "This query cannot be performed for a combined depth+stencil
3448 * attachment, since it does not have a single format."
3450 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3451 "%s(GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE"
3452 " is invalid for depth+stencil attachment)", caller
);
3455 /* the depth and stencil attachments must point to the same buffer */
3456 depthAtt
= get_attachment(ctx
, buffer
, GL_DEPTH_ATTACHMENT
);
3457 stencilAtt
= get_attachment(ctx
, buffer
, GL_STENCIL_ATTACHMENT
);
3458 if (depthAtt
->Renderbuffer
!= stencilAtt
->Renderbuffer
) {
3459 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3460 "%s(DEPTH/STENCIL attachments differ)", caller
);
3465 /* No need to flush here */
3468 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
3469 *params
= _mesa_is_winsys_fbo(buffer
)
3470 ? GL_FRAMEBUFFER_DEFAULT
: att
->Type
;
3472 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
3473 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
3474 *params
= att
->Renderbuffer
->Name
;
3476 else if (att
->Type
== GL_TEXTURE
) {
3477 *params
= att
->Texture
->Name
;
3480 assert(att
->Type
== GL_NONE
);
3481 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
3484 goto invalid_pname_enum
;
3488 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
3489 if (att
->Type
== GL_TEXTURE
) {
3490 *params
= att
->TextureLevel
;
3492 else if (att
->Type
== GL_NONE
) {
3493 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3494 _mesa_lookup_enum_by_nr(pname
));
3497 goto invalid_pname_enum
;
3500 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
3501 if (att
->Type
== GL_TEXTURE
) {
3502 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
3503 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
3509 else if (att
->Type
== GL_NONE
) {
3510 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3511 _mesa_lookup_enum_by_nr(pname
));
3514 goto invalid_pname_enum
;
3517 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
3518 if (ctx
->API
== API_OPENGLES
) {
3519 goto invalid_pname_enum
;
3520 } else if (att
->Type
== GL_NONE
) {
3521 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3522 _mesa_lookup_enum_by_nr(pname
));
3523 } else if (att
->Type
== GL_TEXTURE
) {
3524 if (att
->Texture
&& (att
->Texture
->Target
== GL_TEXTURE_3D
||
3525 att
->Texture
->Target
== GL_TEXTURE_2D_ARRAY
)) {
3526 *params
= att
->Zoffset
;
3533 goto invalid_pname_enum
;
3536 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
:
3537 if ((!_mesa_is_desktop_gl(ctx
) ||
3538 !ctx
->Extensions
.ARB_framebuffer_object
)
3539 && !_mesa_is_gles3(ctx
)) {
3540 goto invalid_pname_enum
;
3542 else if (att
->Type
== GL_NONE
) {
3543 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3544 _mesa_lookup_enum_by_nr(pname
));
3547 if (ctx
->Extensions
.EXT_framebuffer_sRGB
) {
3549 _mesa_get_format_color_encoding(att
->Renderbuffer
->Format
);
3552 /* According to ARB_framebuffer_sRGB, we should return LINEAR
3553 * if the sRGB conversion is unsupported. */
3554 *params
= GL_LINEAR
;
3558 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
:
3559 if ((ctx
->API
!= API_OPENGL_COMPAT
||
3560 !ctx
->Extensions
.ARB_framebuffer_object
)
3561 && ctx
->API
!= API_OPENGL_CORE
3562 && !_mesa_is_gles3(ctx
)) {
3563 goto invalid_pname_enum
;
3565 else if (att
->Type
== GL_NONE
) {
3566 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3567 _mesa_lookup_enum_by_nr(pname
));
3570 mesa_format format
= att
->Renderbuffer
->Format
;
3572 /* Page 235 (page 247 of the PDF) in section 6.1.13 of the OpenGL ES
3575 * "If pname is FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE.... If
3576 * attachment is DEPTH_STENCIL_ATTACHMENT the query will fail and
3577 * generate an INVALID_OPERATION error.
3579 if (_mesa_is_gles3(ctx
) &&
3580 attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3581 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3583 "GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE of "
3584 "GL_DEPTH_STENCIL_ATTACHMENT)", caller
);
3588 if (format
== MESA_FORMAT_S_UINT8
) {
3592 else if (format
== MESA_FORMAT_Z32_FLOAT_S8X24_UINT
) {
3593 /* depends on the attachment parameter */
3594 if (attachment
== GL_STENCIL_ATTACHMENT
) {
3602 *params
= _mesa_get_format_datatype(format
);
3606 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
3607 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
3608 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
3609 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
3610 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
3611 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
3612 if ((!_mesa_is_desktop_gl(ctx
) ||
3613 !ctx
->Extensions
.ARB_framebuffer_object
)
3614 && !_mesa_is_gles3(ctx
)) {
3615 goto invalid_pname_enum
;
3617 else if (att
->Type
== GL_NONE
) {
3618 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3619 _mesa_lookup_enum_by_nr(pname
));
3621 else if (att
->Texture
) {
3622 const struct gl_texture_image
*texImage
=
3623 _mesa_select_tex_image(att
->Texture
, att
->Texture
->Target
,
3626 *params
= get_component_bits(pname
, texImage
->_BaseFormat
,
3627 texImage
->TexFormat
);
3633 else if (att
->Renderbuffer
) {
3634 *params
= get_component_bits(pname
, att
->Renderbuffer
->_BaseFormat
,
3635 att
->Renderbuffer
->Format
);
3638 _mesa_problem(ctx
, "%s: invalid FBO attachment structure", caller
);
3641 case GL_FRAMEBUFFER_ATTACHMENT_LAYERED
:
3642 if (!_mesa_has_geometry_shaders(ctx
)) {
3643 goto invalid_pname_enum
;
3644 } else if (att
->Type
== GL_TEXTURE
) {
3645 *params
= att
->Layered
;
3646 } else if (att
->Type
== GL_NONE
) {
3647 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3648 _mesa_lookup_enum_by_nr(pname
));
3650 goto invalid_pname_enum
;
3654 goto invalid_pname_enum
;
3660 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname %s)", caller
,
3661 _mesa_lookup_enum_by_nr(pname
));
3667 _mesa_GetFramebufferAttachmentParameteriv(GLenum target
, GLenum attachment
,
3668 GLenum pname
, GLint
*params
)
3670 GET_CURRENT_CONTEXT(ctx
);
3671 struct gl_framebuffer
*buffer
;
3673 buffer
= get_framebuffer_target(ctx
, target
);
3675 _mesa_error(ctx
, GL_INVALID_ENUM
,
3676 "glGetFramebufferAttachmentParameteriv(invalid target %s)",
3677 _mesa_lookup_enum_by_nr(target
));
3681 _mesa_get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
3683 "glGetFramebufferAttachmentParameteriv");
3688 _mesa_GetNamedFramebufferAttachmentParameteriv(GLuint framebuffer
,
3690 GLenum pname
, GLint
*params
)
3692 GET_CURRENT_CONTEXT(ctx
);
3693 struct gl_framebuffer
*buffer
;
3695 if (!ctx
->Extensions
.ARB_direct_state_access
) {
3696 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3697 "glGetNamedFramebufferAttachmentParameteriv("
3698 "GL_ARB_direct_state_access is not supported)");
3703 buffer
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3704 "glGetNamedFramebufferAttachmentParameteriv");
3710 * Section 9.2 Binding and Managing Framebuffer Objects of the OpenGL
3711 * 4.5 core spec (30.10.2014, PDF page 314):
3712 * "If framebuffer is zero, then the default draw framebuffer is
3715 buffer
= ctx
->WinSysDrawBuffer
;
3718 _mesa_get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
3720 "glGetNamedFramebufferAttachmentParameteriv");
3725 _mesa_NamedFramebufferParameteri(GLuint framebuffer
, GLenum pname
,
3728 GET_CURRENT_CONTEXT(ctx
);
3734 if (!ctx
->Extensions
.ARB_direct_state_access
) {
3735 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3736 "glNamedFramebufferParameteri("
3737 "GL_ARB_direct_state_access is not supported)");
3741 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3742 "glNamedFramebufferParameteri not supported "
3743 "(ARB_framebuffer_no_attachments not implemented)");
3748 _mesa_GetNamedFramebufferParameteriv(GLuint framebuffer
, GLenum pname
,
3751 GET_CURRENT_CONTEXT(ctx
);
3757 if (!ctx
->Extensions
.ARB_direct_state_access
) {
3758 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3759 "glNamedFramebufferParameteriv("
3760 "GL_ARB_direct_state_access is not supported)");
3764 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3765 "glGetNamedFramebufferParameteriv not supported "
3766 "(ARB_framebuffer_no_attachments not implemented)");
3771 invalidate_framebuffer_storage(struct gl_context
*ctx
,
3772 struct gl_framebuffer
*fb
,
3773 GLsizei numAttachments
,
3774 const GLenum
*attachments
, GLint x
, GLint y
,
3775 GLsizei width
, GLsizei height
, const char *name
)
3779 /* Section 17.4 Whole Framebuffer Operations of the OpenGL 4.5 Core
3780 * Spec (2.2.2015, PDF page 522) says:
3781 * "An INVALID_VALUE error is generated if numAttachments, width, or
3782 * height is negative."
3784 if (numAttachments
< 0) {
3785 _mesa_error(ctx
, GL_INVALID_VALUE
,
3786 "%s(numAttachments < 0)", name
);
3791 _mesa_error(ctx
, GL_INVALID_VALUE
,
3792 "%s(width < 0)", name
);
3797 _mesa_error(ctx
, GL_INVALID_VALUE
,
3798 "%s(height < 0)", name
);
3802 /* The GL_ARB_invalidate_subdata spec says:
3804 * "If an attachment is specified that does not exist in the
3805 * framebuffer bound to <target>, it is ignored."
3809 * "If <attachments> contains COLOR_ATTACHMENTm and m is greater than
3810 * or equal to the value of MAX_COLOR_ATTACHMENTS, then the error
3811 * INVALID_OPERATION is generated."
3813 * No mention is made of GL_AUXi being out of range. Therefore, we allow
3814 * any enum that can be allowed by the API (OpenGL ES 3.0 has a different
3815 * set of retrictions).
3817 for (i
= 0; i
< numAttachments
; i
++) {
3818 if (_mesa_is_winsys_fbo(fb
)) {
3819 switch (attachments
[i
]) {
3825 /* Accumulation buffers and auxilary buffers were removed in
3826 * OpenGL 3.1, and they never existed in OpenGL ES.
3828 if (ctx
->API
!= API_OPENGL_COMPAT
)
3838 case GL_FRONT_RIGHT
:
3839 if (!_mesa_is_desktop_gl(ctx
))
3846 switch (attachments
[i
]) {
3847 case GL_DEPTH_ATTACHMENT
:
3848 case GL_STENCIL_ATTACHMENT
:
3850 case GL_DEPTH_STENCIL_ATTACHMENT
:
3851 /* GL_DEPTH_STENCIL_ATTACHMENT is a valid attachment point only
3852 * in desktop and ES 3.0 profiles. Note that OES_packed_depth_stencil
3853 * extension does not make this attachment point valid on ES 2.0.
3855 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
))
3858 case GL_COLOR_ATTACHMENT0
:
3859 case GL_COLOR_ATTACHMENT1
:
3860 case GL_COLOR_ATTACHMENT2
:
3861 case GL_COLOR_ATTACHMENT3
:
3862 case GL_COLOR_ATTACHMENT4
:
3863 case GL_COLOR_ATTACHMENT5
:
3864 case GL_COLOR_ATTACHMENT6
:
3865 case GL_COLOR_ATTACHMENT7
:
3866 case GL_COLOR_ATTACHMENT8
:
3867 case GL_COLOR_ATTACHMENT9
:
3868 case GL_COLOR_ATTACHMENT10
:
3869 case GL_COLOR_ATTACHMENT11
:
3870 case GL_COLOR_ATTACHMENT12
:
3871 case GL_COLOR_ATTACHMENT13
:
3872 case GL_COLOR_ATTACHMENT14
:
3873 case GL_COLOR_ATTACHMENT15
: {
3874 unsigned k
= attachments
[i
] - GL_COLOR_ATTACHMENT0
;
3875 if (k
>= ctx
->Const
.MaxColorAttachments
) {
3876 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3877 "%s(attachment >= max. color attachments)", name
);
3888 /* We don't actually do anything for this yet. Just return after
3889 * validating the parameters and generating the required errors.
3894 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", name
,
3895 _mesa_lookup_enum_by_nr(attachments
[i
]));
3901 _mesa_InvalidateSubFramebuffer(GLenum target
, GLsizei numAttachments
,
3902 const GLenum
*attachments
, GLint x
, GLint y
,
3903 GLsizei width
, GLsizei height
)
3905 struct gl_framebuffer
*fb
;
3906 GET_CURRENT_CONTEXT(ctx
);
3908 fb
= get_framebuffer_target(ctx
, target
);
3910 _mesa_error(ctx
, GL_INVALID_ENUM
,
3911 "glInvalidateSubFramebuffer(invalid target %s)",
3912 _mesa_lookup_enum_by_nr(target
));
3916 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
3917 x
, y
, width
, height
,
3918 "glInvalidateSubFramebuffer");
3923 _mesa_InvalidateNamedFramebufferSubData(GLuint framebuffer
,
3924 GLsizei numAttachments
,
3925 const GLenum
*attachments
,
3927 GLsizei width
, GLsizei height
)
3929 struct gl_framebuffer
*fb
;
3930 GET_CURRENT_CONTEXT(ctx
);
3932 if (!ctx
->Extensions
.ARB_direct_state_access
) {
3933 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3934 "glInvalidateNamedFramebufferSubData("
3935 "GL_ARB_direct_state_access is not supported)");
3939 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
3940 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
3941 * default draw framebuffer is affected."
3944 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3945 "glInvalidateNamedFramebufferSubData");
3950 fb
= ctx
->WinSysDrawBuffer
;
3952 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
3953 x
, y
, width
, height
,
3954 "glInvalidateNamedFramebufferSubData");
3959 _mesa_InvalidateFramebuffer(GLenum target
, GLsizei numAttachments
,
3960 const GLenum
*attachments
)
3962 struct gl_framebuffer
*fb
;
3963 GET_CURRENT_CONTEXT(ctx
);
3965 fb
= get_framebuffer_target(ctx
, target
);
3967 _mesa_error(ctx
, GL_INVALID_ENUM
,
3968 "glInvalidateFramebuffer(invalid target %s)",
3969 _mesa_lookup_enum_by_nr(target
));
3973 /* The GL_ARB_invalidate_subdata spec says:
3977 * void InvalidateFramebuffer(enum target,
3978 * sizei numAttachments,
3979 * const enum *attachments);
3981 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
3982 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
3983 * <MAX_VIEWPORT_DIMS[1]> respectively."
3985 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
3987 MAX_VIEWPORT_WIDTH
, MAX_VIEWPORT_HEIGHT
,
3988 "glInvalidateFramebuffer");
3993 _mesa_InvalidateNamedFramebufferData(GLuint framebuffer
,
3994 GLsizei numAttachments
,
3995 const GLenum
*attachments
)
3997 struct gl_framebuffer
*fb
;
3998 GET_CURRENT_CONTEXT(ctx
);
4000 if (!ctx
->Extensions
.ARB_direct_state_access
) {
4001 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4002 "glInvalidateNamedFramebufferData("
4003 "GL_ARB_direct_state_access is not supported)");
4007 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
4008 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
4009 * default draw framebuffer is affected."
4012 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4013 "glInvalidateNamedFramebufferData");
4018 fb
= ctx
->WinSysDrawBuffer
;
4020 /* The GL_ARB_invalidate_subdata spec says:
4024 * void InvalidateFramebuffer(enum target,
4025 * sizei numAttachments,
4026 * const enum *attachments);
4028 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
4029 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
4030 * <MAX_VIEWPORT_DIMS[1]> respectively."
4032 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4034 MAX_VIEWPORT_WIDTH
, MAX_VIEWPORT_HEIGHT
,
4035 "glInvalidateNamedFramebufferData");
4040 _mesa_DiscardFramebufferEXT(GLenum target
, GLsizei numAttachments
,
4041 const GLenum
*attachments
)
4043 struct gl_framebuffer
*fb
;
4046 GET_CURRENT_CONTEXT(ctx
);
4048 fb
= get_framebuffer_target(ctx
, target
);
4050 _mesa_error(ctx
, GL_INVALID_ENUM
,
4051 "glDiscardFramebufferEXT(target %s)",
4052 _mesa_lookup_enum_by_nr(target
));
4056 if (numAttachments
< 0) {
4057 _mesa_error(ctx
, GL_INVALID_VALUE
,
4058 "glDiscardFramebufferEXT(numAttachments < 0)");
4062 for (i
= 0; i
< numAttachments
; i
++) {
4063 switch (attachments
[i
]) {
4067 if (_mesa_is_user_fbo(fb
))
4070 case GL_COLOR_ATTACHMENT0
:
4071 case GL_DEPTH_ATTACHMENT
:
4072 case GL_STENCIL_ATTACHMENT
:
4073 if (_mesa_is_winsys_fbo(fb
))
4081 if (ctx
->Driver
.DiscardFramebuffer
)
4082 ctx
->Driver
.DiscardFramebuffer(ctx
, target
, numAttachments
, attachments
);
4087 _mesa_error(ctx
, GL_INVALID_ENUM
,
4088 "glDiscardFramebufferEXT(attachment %s)",
4089 _mesa_lookup_enum_by_nr(attachments
[i
]));