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
;
960 fb
->_HasAttachments
= true;
962 /* Start at -2 to more easily loop over all attachment points.
967 for (i
= -2; i
< (GLint
) ctx
->Const
.MaxColorAttachments
; i
++) {
968 struct gl_renderbuffer_attachment
*att
;
970 mesa_format attFormat
;
971 GLenum att_tex_target
= GL_NONE
;
974 * XXX for ARB_fbo, only check color buffers that are named by
975 * GL_READ_BUFFER and GL_DRAW_BUFFERi.
978 /* check for attachment completeness
981 att
= &fb
->Attachment
[BUFFER_DEPTH
];
982 test_attachment_completeness(ctx
, GL_DEPTH
, att
);
983 if (!att
->Complete
) {
984 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
985 fbo_incomplete(ctx
, "depth attachment incomplete", -1);
987 } else if (att
->Type
!= GL_NONE
) {
988 has_depth_attachment
= true;
992 att
= &fb
->Attachment
[BUFFER_STENCIL
];
993 test_attachment_completeness(ctx
, GL_STENCIL
, att
);
994 if (!att
->Complete
) {
995 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
996 fbo_incomplete(ctx
, "stencil attachment incomplete", -1);
998 } else if (att
->Type
!= GL_NONE
) {
999 has_stencil_attachment
= true;
1003 att
= &fb
->Attachment
[BUFFER_COLOR0
+ i
];
1004 test_attachment_completeness(ctx
, GL_COLOR
, att
);
1005 if (!att
->Complete
) {
1006 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1007 fbo_incomplete(ctx
, "color attachment incomplete", i
);
1012 /* get width, height, format of the renderbuffer/texture
1014 if (att
->Type
== GL_TEXTURE
) {
1015 const struct gl_texture_image
*texImg
= att
->Renderbuffer
->TexImage
;
1016 att_tex_target
= att
->Texture
->Target
;
1017 minWidth
= MIN2(minWidth
, texImg
->Width
);
1018 maxWidth
= MAX2(maxWidth
, texImg
->Width
);
1019 minHeight
= MIN2(minHeight
, texImg
->Height
);
1020 maxHeight
= MAX2(maxHeight
, texImg
->Height
);
1021 f
= texImg
->_BaseFormat
;
1022 attFormat
= texImg
->TexFormat
;
1025 if (!is_format_color_renderable(ctx
, attFormat
,
1026 texImg
->InternalFormat
) &&
1027 !is_legal_depth_format(ctx
, f
) &&
1028 f
!= GL_STENCIL_INDEX
) {
1029 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT
;
1030 fbo_incomplete(ctx
, "texture attachment incomplete", -1);
1035 numSamples
= texImg
->NumSamples
;
1036 else if (numSamples
!= texImg
->NumSamples
) {
1037 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1038 fbo_incomplete(ctx
, "inconsistent sample count", -1);
1042 if (fixedSampleLocations
< 0)
1043 fixedSampleLocations
= texImg
->FixedSampleLocations
;
1044 else if (fixedSampleLocations
!= texImg
->FixedSampleLocations
) {
1045 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1046 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1050 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
1051 minWidth
= MIN2(minWidth
, att
->Renderbuffer
->Width
);
1052 maxWidth
= MAX2(minWidth
, att
->Renderbuffer
->Width
);
1053 minHeight
= MIN2(minHeight
, att
->Renderbuffer
->Height
);
1054 maxHeight
= MAX2(minHeight
, att
->Renderbuffer
->Height
);
1055 f
= att
->Renderbuffer
->InternalFormat
;
1056 attFormat
= att
->Renderbuffer
->Format
;
1060 numSamples
= att
->Renderbuffer
->NumSamples
;
1061 else if (numSamples
!= att
->Renderbuffer
->NumSamples
) {
1062 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1063 fbo_incomplete(ctx
, "inconsistent sample count", -1);
1067 /* RENDERBUFFER has fixedSampleLocations implicitly true */
1068 if (fixedSampleLocations
< 0)
1069 fixedSampleLocations
= GL_TRUE
;
1070 else if (fixedSampleLocations
!= GL_TRUE
) {
1071 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1072 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1077 assert(att
->Type
== GL_NONE
);
1081 /* check if integer color */
1082 fb
->_IntegerColor
= _mesa_is_format_integer_color(attFormat
);
1084 /* Update _AllColorBuffersFixedPoint and _HasSNormOrFloatColorBuffer. */
1086 GLenum type
= _mesa_get_format_datatype(attFormat
);
1088 fb
->_AllColorBuffersFixedPoint
=
1089 fb
->_AllColorBuffersFixedPoint
&&
1090 (type
== GL_UNSIGNED_NORMALIZED
|| type
== GL_SIGNED_NORMALIZED
);
1092 fb
->_HasSNormOrFloatColorBuffer
=
1093 fb
->_HasSNormOrFloatColorBuffer
||
1094 type
== GL_SIGNED_NORMALIZED
|| type
== GL_FLOAT
;
1097 /* Error-check width, height, format */
1098 if (numImages
== 1) {
1105 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
1106 /* check that width, height, format are same */
1107 if (minWidth
!= maxWidth
|| minHeight
!= maxHeight
) {
1108 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
;
1109 fbo_incomplete(ctx
, "width or height mismatch", -1);
1112 /* check that all color buffers are the same format */
1113 if (intFormat
!= GL_NONE
&& f
!= intFormat
) {
1114 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
1115 fbo_incomplete(ctx
, "format mismatch", -1);
1121 /* Check that the format is valid. (MESA_FORMAT_NONE means unsupported)
1123 if (att
->Type
== GL_RENDERBUFFER
&&
1124 att
->Renderbuffer
->Format
== MESA_FORMAT_NONE
) {
1125 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1126 fbo_incomplete(ctx
, "unsupported renderbuffer format", i
);
1130 /* Check that layered rendering is consistent. */
1132 if (att_tex_target
== GL_TEXTURE_CUBE_MAP
)
1133 att_layer_count
= 6;
1134 else if (att_tex_target
== GL_TEXTURE_1D_ARRAY
)
1135 att_layer_count
= att
->Renderbuffer
->Height
;
1137 att_layer_count
= att
->Renderbuffer
->Depth
;
1139 att_layer_count
= 0;
1141 if (!layer_info_valid
) {
1142 is_layered
= att
->Layered
;
1143 max_layer_count
= att_layer_count
;
1144 layer_tex_target
= att_tex_target
;
1145 layer_info_valid
= true;
1146 } else if (max_layer_count
> 0 && layer_tex_target
!= att_tex_target
) {
1147 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1148 fbo_incomplete(ctx
, "layered framebuffer has mismatched targets", i
);
1150 } else if (is_layered
!= att
->Layered
) {
1151 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1153 "framebuffer attachment layer mode is inconsistent",
1156 } else if (att_layer_count
> max_layer_count
) {
1157 max_layer_count
= att_layer_count
;
1161 * The extension GL_ARB_framebuffer_no_attachments places additional
1162 * requirement on each attachment. Those additional requirements are
1163 * tighter that those of previous versions of GL. In interest of better
1164 * compatibility, we will not enforce these restrictions. For the record
1165 * those additional restrictions are quoted below:
1167 * "The width and height of image are greater than zero and less than or
1168 * equal to the values of the implementation-dependent limits
1169 * MAX_FRAMEBUFFER_WIDTH and MAX_FRAMEBUFFER_HEIGHT, respectively."
1171 * "If <image> is a three-dimensional texture or a one- or two-dimensional
1172 * array texture and the attachment is layered, the depth or layer count
1173 * of the texture is less than or equal to the implementation-dependent
1174 * limit MAX_FRAMEBUFFER_LAYERS."
1176 * "If image has multiple samples, its sample count is less than or equal
1177 * to the value of the implementation-dependent limit
1178 * MAX_FRAMEBUFFER_SAMPLES."
1180 * The same requirements are also in place for GL 4.5,
1181 * Section 9.4.1 "Framebuffer Attachment Completeness", pg 310-311
1185 fb
->MaxNumLayers
= max_layer_count
;
1187 if (numImages
== 0) {
1188 fb
->_HasAttachments
= false;
1190 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
1191 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1192 fbo_incomplete(ctx
, "no attachments", -1);
1196 if (fb
->DefaultGeometry
.Width
== 0 || fb
->DefaultGeometry
.Height
== 0) {
1197 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1198 fbo_incomplete(ctx
, "no attachments and default width or height is 0", -1);
1203 if (_mesa_is_desktop_gl(ctx
) && !ctx
->Extensions
.ARB_ES2_compatibility
) {
1204 /* Check that all DrawBuffers are present */
1205 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
1206 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
1207 const struct gl_renderbuffer_attachment
*att
1208 = get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
]);
1210 if (att
->Type
== GL_NONE
) {
1211 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
1212 fbo_incomplete(ctx
, "missing drawbuffer", j
);
1218 /* Check that the ReadBuffer is present */
1219 if (fb
->ColorReadBuffer
!= GL_NONE
) {
1220 const struct gl_renderbuffer_attachment
*att
1221 = get_attachment(ctx
, fb
, fb
->ColorReadBuffer
);
1223 if (att
->Type
== GL_NONE
) {
1224 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
1225 fbo_incomplete(ctx
, "missing readbuffer", -1);
1231 /* The OpenGL ES3 spec, in chapter 9.4. FRAMEBUFFER COMPLETENESS, says:
1233 * "Depth and stencil attachments, if present, are the same image."
1235 * This restriction is not present in the OpenGL ES2 spec.
1237 if (_mesa_is_gles3(ctx
) &&
1238 has_stencil_attachment
&& has_depth_attachment
&&
1239 !_mesa_has_depthstencil_combined(fb
)) {
1240 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1241 fbo_incomplete(ctx
, "Depth and stencil attachments must be the same image", -1);
1245 /* Provisionally set status = COMPLETE ... */
1246 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
1248 /* ... but the driver may say the FB is incomplete.
1249 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
1252 if (ctx
->Driver
.ValidateFramebuffer
) {
1253 ctx
->Driver
.ValidateFramebuffer(ctx
, fb
);
1254 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1255 fbo_incomplete(ctx
, "driver marked FBO as incomplete", -1);
1259 if (fb
->_Status
== GL_FRAMEBUFFER_COMPLETE_EXT
) {
1261 * Note that if ARB_framebuffer_object is supported and the attached
1262 * renderbuffers/textures are different sizes, the framebuffer
1263 * width/height will be set to the smallest width/height.
1265 if (numImages
!= 0) {
1266 fb
->Width
= minWidth
;
1267 fb
->Height
= minHeight
;
1270 /* finally, update the visual info for the framebuffer */
1271 _mesa_update_framebuffer_visual(ctx
, fb
);
1276 GLboolean GLAPIENTRY
1277 _mesa_IsRenderbuffer(GLuint renderbuffer
)
1279 GET_CURRENT_CONTEXT(ctx
);
1280 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1282 struct gl_renderbuffer
*rb
=
1283 _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1284 if (rb
!= NULL
&& rb
!= &DummyRenderbuffer
)
1291 static struct gl_renderbuffer
*
1292 allocate_renderbuffer(struct gl_context
*ctx
, GLuint renderbuffer
,
1295 struct gl_renderbuffer
*newRb
;
1297 /* create new renderbuffer object */
1298 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
1300 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
1303 assert(newRb
->AllocStorage
);
1304 mtx_lock(&ctx
->Shared
->Mutex
);
1305 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
1306 newRb
->RefCount
= 1; /* referenced by hash table */
1307 mtx_unlock(&ctx
->Shared
->Mutex
);
1314 bind_renderbuffer(GLenum target
, GLuint renderbuffer
, bool allow_user_names
)
1316 struct gl_renderbuffer
*newRb
;
1317 GET_CURRENT_CONTEXT(ctx
);
1319 if (target
!= GL_RENDERBUFFER_EXT
) {
1320 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindRenderbufferEXT(target)");
1324 /* No need to flush here since the render buffer binding has no
1325 * effect on rendering state.
1329 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1330 if (newRb
== &DummyRenderbuffer
) {
1331 /* ID was reserved, but no real renderbuffer object made yet */
1334 else if (!newRb
&& !allow_user_names
) {
1335 /* All RB IDs must be Gen'd */
1336 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindRenderbuffer(buffer)");
1341 newRb
= allocate_renderbuffer(ctx
, renderbuffer
, "glBindRenderbufferEXT");
1348 assert(newRb
!= &DummyRenderbuffer
);
1350 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
1354 _mesa_BindRenderbuffer(GLenum target
, GLuint renderbuffer
)
1356 GET_CURRENT_CONTEXT(ctx
);
1358 /* OpenGL ES glBindRenderbuffer and glBindRenderbufferOES use this same
1359 * entry point, but they allow the use of user-generated names.
1361 bind_renderbuffer(target
, renderbuffer
, _mesa_is_gles(ctx
));
1365 _mesa_BindRenderbufferEXT(GLenum target
, GLuint renderbuffer
)
1367 /* This function should not be in the dispatch table for core profile /
1368 * OpenGL 3.1, so execution should never get here in those cases -- no
1369 * need for an explicit test.
1371 bind_renderbuffer(target
, renderbuffer
, true);
1375 framebuffer_parameteri(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1376 GLenum pname
, GLint param
, const char *func
)
1379 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1380 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferWidth
)
1381 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1383 fb
->DefaultGeometry
.Width
= param
;
1385 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1386 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferHeight
)
1387 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1389 fb
->DefaultGeometry
.Height
= param
;
1391 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1392 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferLayers
)
1393 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1395 fb
->DefaultGeometry
.Layers
= param
;
1397 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1398 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferSamples
)
1399 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1401 fb
->DefaultGeometry
.NumSamples
= param
;
1403 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1404 fb
->DefaultGeometry
.FixedSampleLocations
= param
;
1407 _mesa_error(ctx
, GL_INVALID_ENUM
,
1408 "%s(pname=0x%x)", func
, pname
);
1413 _mesa_FramebufferParameteri(GLenum target
, GLenum pname
, GLint param
)
1415 GET_CURRENT_CONTEXT(ctx
);
1416 struct gl_framebuffer
*fb
;
1418 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
1419 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1420 "glFramebufferParameteriv not supported "
1421 "(ARB_framebuffer_no_attachments not implemented)");
1425 fb
= get_framebuffer_target(ctx
, target
);
1427 _mesa_error(ctx
, GL_INVALID_ENUM
,
1428 "glFramebufferParameteri(target=0x%x)", target
);
1432 /* check framebuffer binding */
1433 if (_mesa_is_winsys_fbo(fb
)) {
1434 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1435 "glFramebufferParameteri");
1439 framebuffer_parameteri(ctx
, fb
, pname
, param
, "glFramebufferParameteri");
1443 get_framebuffer_parameteriv(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1444 GLenum pname
, GLint
*params
, const char *func
)
1447 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1448 *params
= fb
->DefaultGeometry
.Width
;
1450 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1451 *params
= fb
->DefaultGeometry
.Height
;
1453 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1454 *params
= fb
->DefaultGeometry
.Layers
;
1456 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1457 *params
= fb
->DefaultGeometry
.NumSamples
;
1459 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1460 *params
= fb
->DefaultGeometry
.FixedSampleLocations
;
1463 _mesa_error(ctx
, GL_INVALID_ENUM
,
1464 "%s(pname=0x%x)", func
, pname
);
1469 _mesa_GetFramebufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
1471 GET_CURRENT_CONTEXT(ctx
);
1472 struct gl_framebuffer
*fb
;
1474 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
1475 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1476 "glGetFramebufferParameteriv not supported "
1477 "(ARB_framebuffer_no_attachments not implemented)");
1481 fb
= get_framebuffer_target(ctx
, target
);
1483 _mesa_error(ctx
, GL_INVALID_ENUM
,
1484 "glGetFramebufferParameteriv(target=0x%x)", target
);
1488 /* check framebuffer binding */
1489 if (_mesa_is_winsys_fbo(fb
)) {
1490 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1491 "glGetFramebufferParameteriv");
1495 get_framebuffer_parameteriv(ctx
, fb
, pname
, params
,
1496 "glGetFramebufferParameteriv");
1501 * Remove the specified renderbuffer or texture from any attachment point in
1505 * \c true if the renderbuffer was detached from an attachment point. \c
1509 _mesa_detach_renderbuffer(struct gl_context
*ctx
,
1510 struct gl_framebuffer
*fb
,
1514 bool progress
= false;
1516 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1517 if (fb
->Attachment
[i
].Texture
== att
1518 || fb
->Attachment
[i
].Renderbuffer
== att
) {
1519 remove_attachment(ctx
, &fb
->Attachment
[i
]);
1524 /* Section 4.4.4 (Framebuffer Completeness), subsection "Whole Framebuffer
1525 * Completeness," of the OpenGL 3.1 spec says:
1527 * "Performing any of the following actions may change whether the
1528 * framebuffer is considered complete or incomplete:
1532 * - Deleting, with DeleteTextures or DeleteRenderbuffers, an object
1533 * containing an image that is attached to a framebuffer object
1534 * that is bound to the framebuffer."
1537 invalidate_framebuffer(fb
);
1544 _mesa_DeleteRenderbuffers(GLsizei n
, const GLuint
*renderbuffers
)
1547 GET_CURRENT_CONTEXT(ctx
);
1550 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteRenderbuffers(n < 0)");
1554 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1556 for (i
= 0; i
< n
; i
++) {
1557 if (renderbuffers
[i
] > 0) {
1558 struct gl_renderbuffer
*rb
;
1559 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
1561 /* check if deleting currently bound renderbuffer object */
1562 if (rb
== ctx
->CurrentRenderbuffer
) {
1564 assert(rb
->RefCount
>= 2);
1565 _mesa_BindRenderbuffer(GL_RENDERBUFFER_EXT
, 0);
1568 /* Section 4.4.2 (Attaching Images to Framebuffer Objects),
1569 * subsection "Attaching Renderbuffer Images to a Framebuffer,"
1570 * of the OpenGL 3.1 spec says:
1572 * "If a renderbuffer object is deleted while its image is
1573 * attached to one or more attachment points in the currently
1574 * bound framebuffer, then it is as if FramebufferRenderbuffer
1575 * had been called, with a renderbuffer of 0, for each
1576 * attachment point to which this image was attached in the
1577 * currently bound framebuffer. In other words, this
1578 * renderbuffer image is first detached from all attachment
1579 * points in the currently bound framebuffer. Note that the
1580 * renderbuffer image is specifically not detached from any
1581 * non-bound framebuffers. Detaching the image from any
1582 * non-bound framebuffers is the responsibility of the
1585 if (_mesa_is_user_fbo(ctx
->DrawBuffer
)) {
1586 _mesa_detach_renderbuffer(ctx
, ctx
->DrawBuffer
, rb
);
1588 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)
1589 && ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
1590 _mesa_detach_renderbuffer(ctx
, ctx
->ReadBuffer
, rb
);
1593 /* Remove from hash table immediately, to free the ID.
1594 * But the object will not be freed until it's no longer
1595 * referenced anywhere else.
1597 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
1599 if (rb
!= &DummyRenderbuffer
) {
1600 /* no longer referenced by hash table */
1601 _mesa_reference_renderbuffer(&rb
, NULL
);
1609 create_render_buffers(struct gl_context
*ctx
, GLsizei n
, GLuint
*renderbuffers
,
1612 const char *func
= dsa
? "glCreateRenderbuffers" : "glGenRenderbuffers";
1617 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n<0)", func
);
1624 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
1626 for (i
= 0; i
< n
; i
++) {
1627 GLuint name
= first
+ i
;
1628 renderbuffers
[i
] = name
;
1631 allocate_renderbuffer(ctx
, name
, func
);
1633 /* insert a dummy renderbuffer into the hash table */
1634 mtx_lock(&ctx
->Shared
->Mutex
);
1635 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, name
, &DummyRenderbuffer
);
1636 mtx_unlock(&ctx
->Shared
->Mutex
);
1643 _mesa_GenRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1645 GET_CURRENT_CONTEXT(ctx
);
1646 create_render_buffers(ctx
, n
, renderbuffers
, false);
1651 _mesa_CreateRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1653 GET_CURRENT_CONTEXT(ctx
);
1654 create_render_buffers(ctx
, n
, renderbuffers
, true);
1659 * Given an internal format token for a render buffer, return the
1660 * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
1661 * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,
1662 * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).
1664 * This is similar to _mesa_base_tex_format() but the set of valid
1665 * internal formats is different.
1667 * Note that even if a format is determined to be legal here, validation
1668 * of the FBO may fail if the format is not supported by the driver/GPU.
1670 * \param internalFormat as passed to glRenderbufferStorage()
1671 * \return the base internal format, or 0 if internalFormat is illegal
1674 _mesa_base_fbo_format(struct gl_context
*ctx
, GLenum internalFormat
)
1677 * Notes: some formats such as alpha, luminance, etc. were added
1678 * with GL_ARB_framebuffer_object.
1680 switch (internalFormat
) {
1686 return (ctx
->API
== API_OPENGL_COMPAT
&&
1687 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_ALPHA
: 0;
1691 case GL_LUMINANCE12
:
1692 case GL_LUMINANCE16
:
1693 return (ctx
->API
== API_OPENGL_COMPAT
&&
1694 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE
: 0;
1695 case GL_LUMINANCE_ALPHA
:
1696 case GL_LUMINANCE4_ALPHA4
:
1697 case GL_LUMINANCE6_ALPHA2
:
1698 case GL_LUMINANCE8_ALPHA8
:
1699 case GL_LUMINANCE12_ALPHA4
:
1700 case GL_LUMINANCE12_ALPHA12
:
1701 case GL_LUMINANCE16_ALPHA16
:
1702 return (ctx
->API
== API_OPENGL_COMPAT
&&
1703 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE_ALPHA
: 0;
1707 case GL_INTENSITY12
:
1708 case GL_INTENSITY16
:
1709 return (ctx
->API
== API_OPENGL_COMPAT
&&
1710 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_INTENSITY
: 0;
1720 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
1722 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
1731 return _mesa_is_desktop_gl(ctx
) ? GL_RGBA
: 0;
1733 case GL_SRGB8_ALPHA8_EXT
:
1734 return _mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
1735 case GL_STENCIL_INDEX
:
1736 case GL_STENCIL_INDEX1_EXT
:
1737 case GL_STENCIL_INDEX4_EXT
:
1738 case GL_STENCIL_INDEX16_EXT
:
1739 /* There are extensions for GL_STENCIL_INDEX1 and GL_STENCIL_INDEX4 in
1740 * OpenGL ES, but Mesa does not currently support them.
1742 return _mesa_is_desktop_gl(ctx
) ? GL_STENCIL_INDEX
: 0;
1743 case GL_STENCIL_INDEX8_EXT
:
1744 return GL_STENCIL_INDEX
;
1745 case GL_DEPTH_COMPONENT
:
1746 case GL_DEPTH_COMPONENT32
:
1747 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_COMPONENT
: 0;
1748 case GL_DEPTH_COMPONENT16
:
1749 case GL_DEPTH_COMPONENT24
:
1750 return GL_DEPTH_COMPONENT
;
1751 case GL_DEPTH_STENCIL
:
1752 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_STENCIL
: 0;
1753 case GL_DEPTH24_STENCIL8
:
1754 return GL_DEPTH_STENCIL
;
1755 case GL_DEPTH_COMPONENT32F
:
1756 return ctx
->Version
>= 30
1757 || (ctx
->API
== API_OPENGL_COMPAT
&&
1758 ctx
->Extensions
.ARB_depth_buffer_float
)
1759 ? GL_DEPTH_COMPONENT
: 0;
1760 case GL_DEPTH32F_STENCIL8
:
1761 return ctx
->Version
>= 30
1762 || (ctx
->API
== API_OPENGL_COMPAT
&&
1763 ctx
->Extensions
.ARB_depth_buffer_float
)
1764 ? GL_DEPTH_STENCIL
: 0;
1767 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_rg
1770 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
1774 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_rg
1777 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
1779 /* signed normalized texture formats */
1783 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1788 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1792 case GL_RGB16_SNORM
:
1793 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1796 case GL_RGBA8_SNORM
:
1797 case GL_RGBA16_SNORM
:
1798 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1800 case GL_ALPHA_SNORM
:
1801 case GL_ALPHA8_SNORM
:
1802 case GL_ALPHA16_SNORM
:
1803 return ctx
->API
== API_OPENGL_COMPAT
&&
1804 ctx
->Extensions
.EXT_texture_snorm
&&
1805 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1806 case GL_LUMINANCE_SNORM
:
1807 case GL_LUMINANCE8_SNORM
:
1808 case GL_LUMINANCE16_SNORM
:
1809 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1811 case GL_LUMINANCE_ALPHA_SNORM
:
1812 case GL_LUMINANCE8_ALPHA8_SNORM
:
1813 case GL_LUMINANCE16_ALPHA16_SNORM
:
1814 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1815 ? GL_LUMINANCE_ALPHA
: 0;
1816 case GL_INTENSITY_SNORM
:
1817 case GL_INTENSITY8_SNORM
:
1818 case GL_INTENSITY16_SNORM
:
1819 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1824 return ((_mesa_is_desktop_gl(ctx
) &&
1825 ctx
->Extensions
.ARB_texture_rg
&&
1826 ctx
->Extensions
.ARB_texture_float
) ||
1827 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1831 return ((_mesa_is_desktop_gl(ctx
) &&
1832 ctx
->Extensions
.ARB_texture_rg
&&
1833 ctx
->Extensions
.ARB_texture_float
) ||
1834 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1838 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_float
)
1842 return ((_mesa_is_desktop_gl(ctx
) &&
1843 ctx
->Extensions
.ARB_texture_float
) ||
1844 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1846 case GL_ALPHA16F_ARB
:
1847 case GL_ALPHA32F_ARB
:
1848 return ctx
->API
== API_OPENGL_COMPAT
&&
1849 ctx
->Extensions
.ARB_texture_float
&&
1850 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1851 case GL_LUMINANCE16F_ARB
:
1852 case GL_LUMINANCE32F_ARB
:
1853 return ctx
->API
== API_OPENGL_COMPAT
&&
1854 ctx
->Extensions
.ARB_texture_float
&&
1855 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
1856 case GL_LUMINANCE_ALPHA16F_ARB
:
1857 case GL_LUMINANCE_ALPHA32F_ARB
:
1858 return ctx
->API
== API_OPENGL_COMPAT
&&
1859 ctx
->Extensions
.ARB_texture_float
&&
1860 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
1861 case GL_INTENSITY16F_ARB
:
1862 case GL_INTENSITY32F_ARB
:
1863 return ctx
->API
== API_OPENGL_COMPAT
&&
1864 ctx
->Extensions
.ARB_texture_float
&&
1865 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
1866 case GL_R11F_G11F_B10F
:
1867 return ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_packed_float
) ||
1868 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1871 case GL_RGBA8UI_EXT
:
1872 case GL_RGBA16UI_EXT
:
1873 case GL_RGBA32UI_EXT
:
1875 case GL_RGBA16I_EXT
:
1876 case GL_RGBA32I_EXT
:
1877 return ctx
->Version
>= 30
1878 || (_mesa_is_desktop_gl(ctx
) &&
1879 ctx
->Extensions
.EXT_texture_integer
) ? GL_RGBA
: 0;
1882 case GL_RGB16UI_EXT
:
1883 case GL_RGB32UI_EXT
:
1887 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_integer
1895 return ctx
->Version
>= 30
1896 || (_mesa_is_desktop_gl(ctx
) &&
1897 ctx
->Extensions
.ARB_texture_rg
&&
1898 ctx
->Extensions
.EXT_texture_integer
) ? GL_RED
: 0;
1906 return ctx
->Version
>= 30
1907 || (_mesa_is_desktop_gl(ctx
) &&
1908 ctx
->Extensions
.ARB_texture_rg
&&
1909 ctx
->Extensions
.EXT_texture_integer
) ? GL_RG
: 0;
1911 case GL_INTENSITY8I_EXT
:
1912 case GL_INTENSITY8UI_EXT
:
1913 case GL_INTENSITY16I_EXT
:
1914 case GL_INTENSITY16UI_EXT
:
1915 case GL_INTENSITY32I_EXT
:
1916 case GL_INTENSITY32UI_EXT
:
1917 return ctx
->API
== API_OPENGL_COMPAT
&&
1918 ctx
->Extensions
.EXT_texture_integer
&&
1919 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
1921 case GL_LUMINANCE8I_EXT
:
1922 case GL_LUMINANCE8UI_EXT
:
1923 case GL_LUMINANCE16I_EXT
:
1924 case GL_LUMINANCE16UI_EXT
:
1925 case GL_LUMINANCE32I_EXT
:
1926 case GL_LUMINANCE32UI_EXT
:
1927 return ctx
->API
== API_OPENGL_COMPAT
&&
1928 ctx
->Extensions
.EXT_texture_integer
&&
1929 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
1931 case GL_LUMINANCE_ALPHA8I_EXT
:
1932 case GL_LUMINANCE_ALPHA8UI_EXT
:
1933 case GL_LUMINANCE_ALPHA16I_EXT
:
1934 case GL_LUMINANCE_ALPHA16UI_EXT
:
1935 case GL_LUMINANCE_ALPHA32I_EXT
:
1936 case GL_LUMINANCE_ALPHA32UI_EXT
:
1937 return ctx
->API
== API_OPENGL_COMPAT
&&
1938 ctx
->Extensions
.EXT_texture_integer
&&
1939 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
1941 case GL_ALPHA8I_EXT
:
1942 case GL_ALPHA8UI_EXT
:
1943 case GL_ALPHA16I_EXT
:
1944 case GL_ALPHA16UI_EXT
:
1945 case GL_ALPHA32I_EXT
:
1946 case GL_ALPHA32UI_EXT
:
1947 return ctx
->API
== API_OPENGL_COMPAT
&&
1948 ctx
->Extensions
.EXT_texture_integer
&&
1949 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1952 return (_mesa_is_desktop_gl(ctx
) &&
1953 ctx
->Extensions
.ARB_texture_rgb10_a2ui
)
1954 || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
1957 return _mesa_is_gles(ctx
) || ctx
->Extensions
.ARB_ES2_compatibility
1966 * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk().
1969 invalidate_rb(GLuint key
, void *data
, void *userData
)
1971 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
1972 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) userData
;
1974 /* If this is a user-created FBO */
1975 if (_mesa_is_user_fbo(fb
)) {
1977 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1978 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
1979 if (att
->Type
== GL_RENDERBUFFER
&&
1980 att
->Renderbuffer
== rb
) {
1981 /* Mark fb status as indeterminate to force re-validation */
1990 /** sentinal value, see below */
1991 #define NO_SAMPLES 1000
1995 * Helper function used by renderbuffer_storage_direct() and
1996 * renderbuffer_storage_target().
1997 * samples will be NO_SAMPLES if called by a non-multisample function.
2000 renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2001 GLenum internalFormat
, GLsizei width
,
2002 GLsizei height
, GLsizei samples
, const char *func
)
2005 GLenum sample_count_error
;
2007 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
2008 if (baseFormat
== 0) {
2009 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalFormat=%s)",
2010 func
, _mesa_enum_to_string(internalFormat
));
2014 if (width
< 0 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2015 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid width %d)", func
,
2020 if (height
< 0 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2021 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid height %d)", func
,
2026 if (samples
== NO_SAMPLES
) {
2027 /* NumSamples == 0 indicates non-multisampling */
2031 /* check the sample count;
2032 * note: driver may choose to use more samples than what's requested
2034 sample_count_error
= _mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
2035 internalFormat
, samples
);
2037 /* Section 2.5 (GL Errors) of OpenGL 3.0 specification, page 16:
2039 * "If a negative number is provided where an argument of type sizei or
2040 * sizeiptr is specified, the error INVALID VALUE is generated."
2043 sample_count_error
= GL_INVALID_VALUE
;
2046 if (sample_count_error
!= GL_NO_ERROR
) {
2047 _mesa_error(ctx
, sample_count_error
, "%s(samples)", func
);
2052 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2054 if (rb
->InternalFormat
== internalFormat
&&
2055 rb
->Width
== (GLuint
) width
&&
2056 rb
->Height
== (GLuint
) height
&&
2057 rb
->NumSamples
== samples
) {
2058 /* no change in allocation needed */
2062 /* These MUST get set by the AllocStorage func */
2063 rb
->Format
= MESA_FORMAT_NONE
;
2064 rb
->NumSamples
= samples
;
2066 /* Now allocate the storage */
2067 assert(rb
->AllocStorage
);
2068 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
2069 /* No error - check/set fields now */
2070 /* If rb->Format == MESA_FORMAT_NONE, the format is unsupported. */
2071 assert(rb
->Width
== (GLuint
) width
);
2072 assert(rb
->Height
== (GLuint
) height
);
2073 rb
->InternalFormat
= internalFormat
;
2074 rb
->_BaseFormat
= baseFormat
;
2075 assert(rb
->_BaseFormat
!= 0);
2078 /* Probably ran out of memory - clear the fields */
2081 rb
->Format
= MESA_FORMAT_NONE
;
2082 rb
->InternalFormat
= GL_NONE
;
2083 rb
->_BaseFormat
= GL_NONE
;
2087 /* Invalidate the framebuffers the renderbuffer is attached in. */
2088 if (rb
->AttachedAnytime
) {
2089 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, invalidate_rb
, rb
);
2094 * Helper function used by _mesa_NamedRenderbufferStorage*().
2095 * samples will be NO_SAMPLES if called by a non-multisample function.
2098 renderbuffer_storage_named(GLuint renderbuffer
, GLenum internalFormat
,
2099 GLsizei width
, GLsizei height
, GLsizei samples
,
2102 GET_CURRENT_CONTEXT(ctx
);
2104 if (MESA_VERBOSE
& VERBOSE_API
) {
2105 if (samples
== NO_SAMPLES
)
2106 _mesa_debug(ctx
, "%s(%u, %s, %d, %d)\n",
2108 _mesa_enum_to_string(internalFormat
),
2111 _mesa_debug(ctx
, "%s(%u, %s, %d, %d, %d)\n",
2113 _mesa_enum_to_string(internalFormat
),
2114 width
, height
, samples
);
2117 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2118 if (!rb
|| rb
== &DummyRenderbuffer
) {
2119 /* ID was reserved, but no real renderbuffer object made yet */
2120 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid renderbuffer %u)",
2121 func
, renderbuffer
);
2125 renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
, func
);
2129 * Helper function used by _mesa_RenderbufferStorage() and
2130 * _mesa_RenderbufferStorageMultisample().
2131 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorage().
2134 renderbuffer_storage_target(GLenum target
, GLenum internalFormat
,
2135 GLsizei width
, GLsizei height
, GLsizei samples
,
2138 GET_CURRENT_CONTEXT(ctx
);
2140 if (MESA_VERBOSE
& VERBOSE_API
) {
2141 if (samples
== NO_SAMPLES
)
2142 _mesa_debug(ctx
, "%s(%s, %s, %d, %d)\n",
2144 _mesa_enum_to_string(target
),
2145 _mesa_enum_to_string(internalFormat
),
2148 _mesa_debug(ctx
, "%s(%s, %s, %d, %d, %d)\n",
2150 _mesa_enum_to_string(target
),
2151 _mesa_enum_to_string(internalFormat
),
2152 width
, height
, samples
);
2155 if (target
!= GL_RENDERBUFFER_EXT
) {
2156 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
2160 if (!ctx
->CurrentRenderbuffer
) {
2161 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(no renderbuffer bound)",
2166 renderbuffer_storage(ctx
, ctx
->CurrentRenderbuffer
, internalFormat
, width
,
2167 height
, samples
, func
);
2172 _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target
, GLeglImageOES image
)
2174 struct gl_renderbuffer
*rb
;
2175 GET_CURRENT_CONTEXT(ctx
);
2177 if (!ctx
->Extensions
.OES_EGL_image
) {
2178 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2179 "glEGLImageTargetRenderbufferStorageOES(unsupported)");
2183 if (target
!= GL_RENDERBUFFER
) {
2184 _mesa_error(ctx
, GL_INVALID_ENUM
,
2185 "EGLImageTargetRenderbufferStorageOES");
2189 rb
= ctx
->CurrentRenderbuffer
;
2191 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2192 "EGLImageTargetRenderbufferStorageOES");
2196 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2198 ctx
->Driver
.EGLImageTargetRenderbufferStorage(ctx
, rb
, image
);
2203 * Helper function for _mesa_GetRenderbufferParameteriv() and
2204 * _mesa_GetFramebufferAttachmentParameteriv()
2205 * We have to be careful to respect the base format. For example, if a
2206 * renderbuffer/texture was created with internalFormat=GL_RGB but the
2207 * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
2208 * we need to return zero.
2211 get_component_bits(GLenum pname
, GLenum baseFormat
, mesa_format format
)
2213 if (_mesa_base_format_has_channel(baseFormat
, pname
))
2214 return _mesa_get_format_bits(format
, pname
);
2222 _mesa_RenderbufferStorage(GLenum target
, GLenum internalFormat
,
2223 GLsizei width
, GLsizei height
)
2225 /* GL_ARB_fbo says calling this function is equivalent to calling
2226 * glRenderbufferStorageMultisample() with samples=0. We pass in
2227 * a token value here just for error reporting purposes.
2229 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2230 NO_SAMPLES
, "glRenderbufferStorage");
2235 _mesa_RenderbufferStorageMultisample(GLenum target
, GLsizei samples
,
2236 GLenum internalFormat
,
2237 GLsizei width
, GLsizei height
)
2239 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2240 samples
, "glRenderbufferStorageMultisample");
2245 * OpenGL ES version of glRenderBufferStorage.
2248 _es_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
2249 GLsizei width
, GLsizei height
)
2251 switch (internalFormat
) {
2253 /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
2254 /* choose a closest format */
2255 internalFormat
= GL_RGB5
;
2261 renderbuffer_storage_target(target
, internalFormat
, width
, height
, 0,
2262 "glRenderbufferStorageEXT");
2266 _mesa_NamedRenderbufferStorage(GLuint renderbuffer
, GLenum internalformat
,
2267 GLsizei width
, GLsizei height
)
2269 /* GL_ARB_fbo says calling this function is equivalent to calling
2270 * glRenderbufferStorageMultisample() with samples=0. We pass in
2271 * a token value here just for error reporting purposes.
2273 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2274 NO_SAMPLES
, "glNamedRenderbufferStorage");
2278 _mesa_NamedRenderbufferStorageMultisample(GLuint renderbuffer
, GLsizei samples
,
2279 GLenum internalformat
,
2280 GLsizei width
, GLsizei height
)
2282 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2284 "glNamedRenderbufferStorageMultisample");
2289 get_render_buffer_parameteriv(struct gl_context
*ctx
,
2290 struct gl_renderbuffer
*rb
, GLenum pname
,
2291 GLint
*params
, const char *func
)
2293 /* No need to flush here since we're just quering state which is
2294 * not effected by rendering.
2298 case GL_RENDERBUFFER_WIDTH_EXT
:
2299 *params
= rb
->Width
;
2301 case GL_RENDERBUFFER_HEIGHT_EXT
:
2302 *params
= rb
->Height
;
2304 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
2305 *params
= rb
->InternalFormat
;
2307 case GL_RENDERBUFFER_RED_SIZE_EXT
:
2308 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
2309 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
2310 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
2311 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
2312 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
2313 *params
= get_component_bits(pname
, rb
->_BaseFormat
, rb
->Format
);
2315 case GL_RENDERBUFFER_SAMPLES
:
2316 if ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_framebuffer_object
)
2317 || _mesa_is_gles3(ctx
)) {
2318 *params
= rb
->NumSamples
;
2323 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname=%s)", func
,
2324 _mesa_enum_to_string(pname
));
2331 _mesa_GetRenderbufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
2333 GET_CURRENT_CONTEXT(ctx
);
2335 if (target
!= GL_RENDERBUFFER_EXT
) {
2336 _mesa_error(ctx
, GL_INVALID_ENUM
,
2337 "glGetRenderbufferParameterivEXT(target)");
2341 if (!ctx
->CurrentRenderbuffer
) {
2342 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetRenderbufferParameterivEXT"
2343 "(no renderbuffer bound)");
2347 get_render_buffer_parameteriv(ctx
, ctx
->CurrentRenderbuffer
, pname
,
2348 params
, "glGetRenderbufferParameteriv");
2353 _mesa_GetNamedRenderbufferParameteriv(GLuint renderbuffer
, GLenum pname
,
2356 GET_CURRENT_CONTEXT(ctx
);
2358 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2359 if (!rb
|| rb
== &DummyRenderbuffer
) {
2360 /* ID was reserved, but no real renderbuffer object made yet */
2361 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetNamedRenderbufferParameteriv"
2362 "(invalid renderbuffer %i)", renderbuffer
);
2366 get_render_buffer_parameteriv(ctx
, rb
, pname
, params
,
2367 "glGetNamedRenderbufferParameteriv");
2371 GLboolean GLAPIENTRY
2372 _mesa_IsFramebuffer(GLuint framebuffer
)
2374 GET_CURRENT_CONTEXT(ctx
);
2375 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
2377 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2378 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
2386 * Check if any of the attachments of the given framebuffer are textures
2387 * (render to texture). Call ctx->Driver.RenderTexture() for such
2391 check_begin_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2394 assert(ctx
->Driver
.RenderTexture
);
2396 if (_mesa_is_winsys_fbo(fb
))
2397 return; /* can't render to texture with winsys framebuffers */
2399 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2400 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2401 if (att
->Texture
&& att
->Renderbuffer
->TexImage
2402 && driver_RenderTexture_is_safe(att
)) {
2403 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
2410 * Examine all the framebuffer's attachments to see if any are textures.
2411 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
2412 * notify the device driver that the texture image may have changed.
2415 check_end_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2417 /* Skip if we know NeedsFinishRenderTexture won't be set. */
2418 if (_mesa_is_winsys_fbo(fb
) && !ctx
->Driver
.BindRenderbufferTexImage
)
2421 if (ctx
->Driver
.FinishRenderTexture
) {
2423 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2424 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2425 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
2426 if (rb
&& rb
->NeedsFinishRenderTexture
) {
2427 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
2435 bind_framebuffer(GLenum target
, GLuint framebuffer
, bool allow_user_names
)
2437 struct gl_framebuffer
*newDrawFb
, *newReadFb
;
2438 struct gl_framebuffer
*oldDrawFb
, *oldReadFb
;
2439 GLboolean bindReadBuf
, bindDrawBuf
;
2440 GET_CURRENT_CONTEXT(ctx
);
2443 case GL_DRAW_FRAMEBUFFER_EXT
:
2444 bindDrawBuf
= GL_TRUE
;
2445 bindReadBuf
= GL_FALSE
;
2447 case GL_READ_FRAMEBUFFER_EXT
:
2448 bindDrawBuf
= GL_FALSE
;
2449 bindReadBuf
= GL_TRUE
;
2451 case GL_FRAMEBUFFER_EXT
:
2452 bindDrawBuf
= GL_TRUE
;
2453 bindReadBuf
= GL_TRUE
;
2456 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
2461 /* Binding a user-created framebuffer object */
2462 newDrawFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2463 if (newDrawFb
== &DummyFramebuffer
) {
2464 /* ID was reserved, but no real framebuffer object made yet */
2467 else if (!newDrawFb
&& !allow_user_names
) {
2468 /* All FBO IDs must be Gen'd */
2469 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindFramebuffer(buffer)");
2474 /* create new framebuffer object */
2475 newDrawFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
2477 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
2480 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newDrawFb
);
2482 newReadFb
= newDrawFb
;
2485 /* Binding the window system framebuffer (which was originally set
2486 * with MakeCurrent).
2488 newDrawFb
= ctx
->WinSysDrawBuffer
;
2489 newReadFb
= ctx
->WinSysReadBuffer
;
2493 assert(newDrawFb
!= &DummyFramebuffer
);
2495 /* save pointers to current/old framebuffers */
2496 oldDrawFb
= ctx
->DrawBuffer
;
2497 oldReadFb
= ctx
->ReadBuffer
;
2499 /* check if really changing bindings */
2500 if (oldDrawFb
== newDrawFb
)
2501 bindDrawBuf
= GL_FALSE
;
2502 if (oldReadFb
== newReadFb
)
2503 bindReadBuf
= GL_FALSE
;
2506 * OK, now bind the new Draw/Read framebuffers, if they're changing.
2508 * We also check if we're beginning and/or ending render-to-texture.
2509 * When a framebuffer with texture attachments is unbound, call
2510 * ctx->Driver.FinishRenderTexture().
2511 * When a framebuffer with texture attachments is bound, call
2512 * ctx->Driver.RenderTexture().
2514 * Note that if the ReadBuffer has texture attachments we don't consider
2515 * that a render-to-texture case.
2518 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2520 /* check if old readbuffer was render-to-texture */
2521 check_end_texture_render(ctx
, oldReadFb
);
2523 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newReadFb
);
2527 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2529 /* check if old framebuffer had any texture attachments */
2531 check_end_texture_render(ctx
, oldDrawFb
);
2533 /* check if newly bound framebuffer has any texture attachments */
2534 check_begin_texture_render(ctx
, newDrawFb
);
2536 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newDrawFb
);
2539 if ((bindDrawBuf
|| bindReadBuf
) && ctx
->Driver
.BindFramebuffer
) {
2540 ctx
->Driver
.BindFramebuffer(ctx
, target
, newDrawFb
, newReadFb
);
2545 _mesa_BindFramebuffer(GLenum target
, GLuint framebuffer
)
2547 GET_CURRENT_CONTEXT(ctx
);
2549 /* OpenGL ES glBindFramebuffer and glBindFramebufferOES use this same entry
2550 * point, but they allow the use of user-generated names.
2552 bind_framebuffer(target
, framebuffer
, _mesa_is_gles(ctx
));
2557 _mesa_BindFramebufferEXT(GLenum target
, GLuint framebuffer
)
2559 /* This function should not be in the dispatch table for core profile /
2560 * OpenGL 3.1, so execution should never get here in those cases -- no
2561 * need for an explicit test.
2563 bind_framebuffer(target
, framebuffer
, true);
2568 _mesa_DeleteFramebuffers(GLsizei n
, const GLuint
*framebuffers
)
2571 GET_CURRENT_CONTEXT(ctx
);
2574 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteFramebuffers(n < 0)");
2578 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2580 for (i
= 0; i
< n
; i
++) {
2581 if (framebuffers
[i
] > 0) {
2582 struct gl_framebuffer
*fb
;
2583 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
2585 assert(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
2587 /* check if deleting currently bound framebuffer object */
2588 if (fb
== ctx
->DrawBuffer
) {
2590 assert(fb
->RefCount
>= 2);
2591 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, 0);
2593 if (fb
== ctx
->ReadBuffer
) {
2595 assert(fb
->RefCount
>= 2);
2596 _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER
, 0);
2599 /* remove from hash table immediately, to free the ID */
2600 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
2602 if (fb
!= &DummyFramebuffer
) {
2603 /* But the object will not be freed until it's no longer
2604 * bound in any context.
2606 _mesa_reference_framebuffer(&fb
, NULL
);
2615 * This is the implementation for glGenFramebuffers and glCreateFramebuffers.
2616 * It is not exposed to the rest of Mesa to encourage the use of
2617 * nameless buffers in driver internals.
2620 create_framebuffers(GLsizei n
, GLuint
*framebuffers
, bool dsa
)
2622 GET_CURRENT_CONTEXT(ctx
);
2625 struct gl_framebuffer
*fb
;
2627 const char *func
= dsa
? "glCreateFramebuffers" : "glGenFramebuffers";
2630 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n < 0)", func
);
2637 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
2639 for (i
= 0; i
< n
; i
++) {
2640 GLuint name
= first
+ i
;
2641 framebuffers
[i
] = name
;
2644 fb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffers
[i
]);
2646 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
2651 fb
= &DummyFramebuffer
;
2653 mtx_lock(&ctx
->Shared
->Mutex
);
2654 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, name
, fb
);
2655 mtx_unlock(&ctx
->Shared
->Mutex
);
2661 _mesa_GenFramebuffers(GLsizei n
, GLuint
*framebuffers
)
2663 create_framebuffers(n
, framebuffers
, false);
2668 _mesa_CreateFramebuffers(GLsizei n
, GLuint
*framebuffers
)
2670 create_framebuffers(n
, framebuffers
, true);
2675 _mesa_check_framebuffer_status(struct gl_context
*ctx
,
2676 struct gl_framebuffer
*buffer
)
2678 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
2680 if (_mesa_is_winsys_fbo(buffer
)) {
2681 /* EGL_KHR_surfaceless_context allows the winsys FBO to be incomplete. */
2682 if (buffer
!= &IncompleteFramebuffer
) {
2683 return GL_FRAMEBUFFER_COMPLETE_EXT
;
2685 return GL_FRAMEBUFFER_UNDEFINED
;
2689 /* No need to flush here */
2691 if (buffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE
) {
2692 _mesa_test_framebuffer_completeness(ctx
, buffer
);
2695 return buffer
->_Status
;
2700 _mesa_CheckFramebufferStatus(GLenum target
)
2702 struct gl_framebuffer
*fb
;
2703 GET_CURRENT_CONTEXT(ctx
);
2705 if (MESA_VERBOSE
& VERBOSE_API
)
2706 _mesa_debug(ctx
, "glCheckFramebufferStatus(%s)\n",
2707 _mesa_enum_to_string(target
));
2709 fb
= get_framebuffer_target(ctx
, target
);
2711 _mesa_error(ctx
, GL_INVALID_ENUM
,
2712 "glCheckFramebufferStatus(invalid target %s)",
2713 _mesa_enum_to_string(target
));
2717 return _mesa_check_framebuffer_status(ctx
, fb
);
2722 _mesa_CheckNamedFramebufferStatus(GLuint framebuffer
, GLenum target
)
2724 struct gl_framebuffer
*fb
;
2725 GET_CURRENT_CONTEXT(ctx
);
2727 /* Validate the target (for conformance's sake) and grab a reference to the
2728 * default framebuffer in case framebuffer = 0.
2729 * Section 9.4 Framebuffer Completeness of the OpenGL 4.5 core spec
2730 * (30.10.2014, PDF page 336) says:
2731 * "If framebuffer is zero, then the status of the default read or
2732 * draw framebuffer (as determined by target) is returned."
2735 case GL_DRAW_FRAMEBUFFER
:
2736 case GL_FRAMEBUFFER
:
2737 fb
= ctx
->WinSysDrawBuffer
;
2739 case GL_READ_FRAMEBUFFER
:
2740 fb
= ctx
->WinSysReadBuffer
;
2743 _mesa_error(ctx
, GL_INVALID_ENUM
,
2744 "glCheckNamedFramebufferStatus(invalid target %s)",
2745 _mesa_enum_to_string(target
));
2750 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
2751 "glCheckNamedFramebufferStatus");
2756 return _mesa_check_framebuffer_status(ctx
, fb
);
2761 * Replicate the src attachment point. Used by framebuffer_texture() when
2762 * the same texture is attached at GL_DEPTH_ATTACHMENT and
2763 * GL_STENCIL_ATTACHMENT.
2766 reuse_framebuffer_texture_attachment(struct gl_framebuffer
*fb
,
2767 gl_buffer_index dst
,
2768 gl_buffer_index src
)
2770 struct gl_renderbuffer_attachment
*dst_att
= &fb
->Attachment
[dst
];
2771 struct gl_renderbuffer_attachment
*src_att
= &fb
->Attachment
[src
];
2773 assert(src_att
->Texture
!= NULL
);
2774 assert(src_att
->Renderbuffer
!= NULL
);
2776 _mesa_reference_texobj(&dst_att
->Texture
, src_att
->Texture
);
2777 _mesa_reference_renderbuffer(&dst_att
->Renderbuffer
, src_att
->Renderbuffer
);
2778 dst_att
->Type
= src_att
->Type
;
2779 dst_att
->Complete
= src_att
->Complete
;
2780 dst_att
->TextureLevel
= src_att
->TextureLevel
;
2781 dst_att
->Zoffset
= src_att
->Zoffset
;
2786 * Common code called by gl*FramebufferTexture*() to retrieve the correct
2787 * texture object pointer.
2789 * \param texObj where the pointer to the texture object is returned. Note
2790 * that a successful call may return texObj = NULL.
2792 * \return true if no errors, false if errors
2795 get_texture_for_framebuffer(struct gl_context
*ctx
, GLuint texture
,
2796 bool layered
, const char *caller
,
2797 struct gl_texture_object
**texObj
)
2799 *texObj
= NULL
; /* This will get returned if texture = 0. */
2804 *texObj
= _mesa_lookup_texture(ctx
, texture
);
2805 if (*texObj
== NULL
|| (*texObj
)->Target
== 0) {
2806 /* Can't render to a non-existent texture object.
2808 * The OpenGL 4.5 core spec (02.02.2015) in Section 9.2 Binding and
2809 * Managing Framebuffer Objects specifies a different error
2810 * depending upon the calling function (PDF pages 325-328).
2811 * *FramebufferTexture (where layered = GL_TRUE) throws invalid
2812 * value, while the other commands throw invalid operation (where
2813 * layered = GL_FALSE).
2815 const GLenum error
= layered
? GL_INVALID_VALUE
:
2816 GL_INVALID_OPERATION
;
2817 _mesa_error(ctx
, error
,
2818 "%s(non-existent texture %u)", caller
, texture
);
2827 * Common code called by gl*FramebufferTexture() to verify the texture target
2828 * and decide whether or not the attachment should truly be considered
2831 * \param layered true if attachment should be considered layered, false if
2834 * \return true if no errors, false if errors
2837 check_layered_texture_target(struct gl_context
*ctx
, GLenum target
,
2838 const char *caller
, GLboolean
*layered
)
2844 case GL_TEXTURE_1D_ARRAY_EXT
:
2845 case GL_TEXTURE_2D_ARRAY_EXT
:
2846 case GL_TEXTURE_CUBE_MAP
:
2847 case GL_TEXTURE_CUBE_MAP_ARRAY
:
2848 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
2852 case GL_TEXTURE_RECTANGLE
:
2853 case GL_TEXTURE_2D_MULTISAMPLE
:
2854 /* These texture types are valid to pass to
2855 * glFramebufferTexture(), but since they aren't layered, it
2856 * is equivalent to calling glFramebufferTexture{1D,2D}().
2858 *layered
= GL_FALSE
;
2862 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2863 "%s(invalid texture target %s)", caller
,
2864 _mesa_enum_to_string(target
));
2870 * Common code called by gl*FramebufferTextureLayer() to verify the texture
2873 * \return true if no errors, false if errors
2876 check_texture_target(struct gl_context
*ctx
, GLenum target
,
2879 /* We're being called by glFramebufferTextureLayer().
2880 * The only legal texture types for that function are 3D,
2881 * cube-map, and 1D/2D/cube-map array textures.
2883 * We don't need to check for GL_ARB_texture_cube_map_array because the
2884 * application wouldn't have been able to create a texture with a
2885 * GL_TEXTURE_CUBE_MAP_ARRAY target if the extension were not enabled.
2889 case GL_TEXTURE_1D_ARRAY
:
2890 case GL_TEXTURE_2D_ARRAY
:
2891 case GL_TEXTURE_CUBE_MAP_ARRAY
:
2892 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
2894 case GL_TEXTURE_CUBE_MAP
:
2895 /* We don't need to check the extension (GL_ARB_direct_state_access) or
2896 * GL version (4.5) for GL_TEXTURE_CUBE_MAP because DSA is always
2897 * enabled in core profile. This can be called from
2898 * _mesa_FramebufferTextureLayer in compatibility profile (OpenGL 3.0),
2899 * so we do have to check the profile.
2901 return ctx
->API
== API_OPENGL_CORE
;
2904 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2905 "%s(invalid texture target %s)", caller
,
2906 _mesa_enum_to_string(target
));
2912 * Common code called by glFramebufferTexture*D() to verify the texture
2915 * \return true if no errors, false if errors
2918 check_textarget(struct gl_context
*ctx
, int dims
, GLenum target
,
2919 GLenum textarget
, const char *caller
)
2925 switch (textarget
) {
2928 case GL_TEXTURE_1D_ARRAY
:
2929 err
= !ctx
->Extensions
.EXT_texture_array
;
2936 switch (textarget
) {
2939 case GL_TEXTURE_RECTANGLE
:
2940 err
= _mesa_is_gles(ctx
)
2941 || !ctx
->Extensions
.NV_texture_rectangle
;
2943 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
2944 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
2945 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
2946 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
2947 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
2948 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
2949 err
= !ctx
->Extensions
.ARB_texture_cube_map
;
2951 case GL_TEXTURE_2D_ARRAY
:
2952 err
= (_mesa_is_gles(ctx
) && ctx
->Version
< 30)
2953 || !ctx
->Extensions
.EXT_texture_array
;
2955 case GL_TEXTURE_2D_MULTISAMPLE
:
2956 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
2957 err
= (_mesa_is_gles(ctx
) ||
2958 !ctx
->Extensions
.ARB_texture_multisample
) &&
2959 !_mesa_is_gles31(ctx
);
2966 if (textarget
!= GL_TEXTURE_3D
)
2974 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2975 "%s(invalid textarget %s)",
2976 caller
, _mesa_enum_to_string(textarget
));
2980 /* Make sure textarget is consistent with the texture's type */
2981 err
= (target
== GL_TEXTURE_CUBE_MAP
) ?
2982 !_mesa_is_cube_face(textarget
): (target
!= textarget
);
2985 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2986 "%s(mismatched texture target)", caller
);
2995 * Common code called by gl*FramebufferTextureLayer() and
2996 * glFramebufferTexture3D() to validate the layer.
2998 * \return true if no errors, false if errors
3001 check_layer(struct gl_context
*ctx
, GLenum target
, GLint layer
,
3004 /* Page 306 (page 328 of the PDF) of the OpenGL 4.5 (Core Profile)
3007 * "An INVALID_VALUE error is generated if texture is non-zero
3008 * and layer is negative."
3011 _mesa_error(ctx
, GL_INVALID_VALUE
,
3012 "%s(layer %u < 0)", caller
, layer
);
3016 if (target
== GL_TEXTURE_3D
) {
3017 const GLuint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
3018 if (layer
>= maxSize
) {
3019 _mesa_error(ctx
, GL_INVALID_VALUE
,
3020 "%s(invalid layer %u)", caller
, layer
);
3024 else if ((target
== GL_TEXTURE_1D_ARRAY
) ||
3025 (target
== GL_TEXTURE_2D_ARRAY
) ||
3026 (target
== GL_TEXTURE_CUBE_MAP_ARRAY
) ||
3027 (target
== GL_TEXTURE_2D_MULTISAMPLE_ARRAY
)) {
3028 if (layer
>= ctx
->Const
.MaxArrayTextureLayers
) {
3029 _mesa_error(ctx
, GL_INVALID_VALUE
,
3030 "%s(layer %u >= GL_MAX_ARRAY_TEXTURE_LAYERS)",
3035 else if (target
== GL_TEXTURE_CUBE_MAP
) {
3037 _mesa_error(ctx
, GL_INVALID_VALUE
,
3038 "%s(layer %u >= 6)", caller
, layer
);
3048 * Common code called by all gl*FramebufferTexture*() entry points to verify
3051 * \return true if no errors, false if errors
3054 check_level(struct gl_context
*ctx
, GLenum target
, GLint level
,
3058 (level
>= _mesa_max_texture_levels(ctx
, target
))) {
3059 _mesa_error(ctx
, GL_INVALID_VALUE
,
3060 "%s(invalid level %d)", caller
, level
);
3069 _mesa_framebuffer_texture(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
3071 struct gl_texture_object
*texObj
, GLenum textarget
,
3072 GLint level
, GLuint layer
, GLboolean layered
,
3075 struct gl_renderbuffer_attachment
*att
;
3077 /* The window-system framebuffer object is immutable */
3078 if (_mesa_is_winsys_fbo(fb
)) {
3079 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(window-system framebuffer)",
3084 /* Not a hash lookup, so we can afford to get the attachment here. */
3085 att
= get_attachment(ctx
, fb
, attachment
);
3087 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", caller
,
3088 _mesa_enum_to_string(attachment
));
3092 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3094 mtx_lock(&fb
->Mutex
);
3096 if (attachment
== GL_DEPTH_ATTACHMENT
&&
3097 texObj
== fb
->Attachment
[BUFFER_STENCIL
].Texture
&&
3098 level
== fb
->Attachment
[BUFFER_STENCIL
].TextureLevel
&&
3099 _mesa_tex_target_to_face(textarget
) ==
3100 fb
->Attachment
[BUFFER_STENCIL
].CubeMapFace
&&
3101 layer
== fb
->Attachment
[BUFFER_STENCIL
].Zoffset
) {
3102 /* The texture object is already attached to the stencil attachment
3103 * point. Don't create a new renderbuffer; just reuse the stencil
3104 * attachment's. This is required to prevent a GL error in
3105 * glGetFramebufferAttachmentParameteriv(GL_DEPTH_STENCIL).
3107 reuse_framebuffer_texture_attachment(fb
, BUFFER_DEPTH
,
3109 } else if (attachment
== GL_STENCIL_ATTACHMENT
&&
3110 texObj
== fb
->Attachment
[BUFFER_DEPTH
].Texture
&&
3111 level
== fb
->Attachment
[BUFFER_DEPTH
].TextureLevel
&&
3112 _mesa_tex_target_to_face(textarget
) ==
3113 fb
->Attachment
[BUFFER_DEPTH
].CubeMapFace
&&
3114 layer
== fb
->Attachment
[BUFFER_DEPTH
].Zoffset
) {
3115 /* As above, but with depth and stencil transposed. */
3116 reuse_framebuffer_texture_attachment(fb
, BUFFER_STENCIL
,
3119 set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
3120 level
, layer
, layered
);
3122 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3123 /* Above we created a new renderbuffer and attached it to the
3124 * depth attachment point. Now attach it to the stencil attachment
3127 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3128 reuse_framebuffer_texture_attachment(fb
,BUFFER_STENCIL
,
3133 /* Set the render-to-texture flag. We'll check this flag in
3134 * glTexImage() and friends to determine if we need to revalidate
3135 * any FBOs that might be rendering into this texture.
3136 * This flag never gets cleared since it's non-trivial to determine
3137 * when all FBOs might be done rendering to this texture. That's OK
3138 * though since it's uncommon to render to a texture then repeatedly
3139 * call glTexImage() to change images in the texture.
3141 texObj
->_RenderToTexture
= GL_TRUE
;
3144 remove_attachment(ctx
, att
);
3145 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3146 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3147 remove_attachment(ctx
, &fb
->Attachment
[BUFFER_STENCIL
]);
3151 invalidate_framebuffer(fb
);
3153 mtx_unlock(&fb
->Mutex
);
3158 framebuffer_texture_with_dims(int dims
, GLenum target
,
3159 GLenum attachment
, GLenum textarget
,
3160 GLuint texture
, GLint level
, GLint layer
,
3163 GET_CURRENT_CONTEXT(ctx
);
3164 struct gl_framebuffer
*fb
;
3165 struct gl_texture_object
*texObj
;
3167 /* Get the framebuffer object */
3168 fb
= get_framebuffer_target(ctx
, target
);
3170 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", caller
,
3171 _mesa_enum_to_string(target
));
3175 /* Get the texture object */
3176 if (!get_texture_for_framebuffer(ctx
, texture
, false, caller
, &texObj
))
3180 if (!check_textarget(ctx
, dims
, texObj
->Target
, textarget
, caller
))
3183 if ((dims
== 3) && !check_layer(ctx
, texObj
->Target
, layer
, caller
))
3187 if (!check_level(ctx
, textarget
, level
, caller
))
3190 _mesa_framebuffer_texture(ctx
, fb
, attachment
, texObj
, textarget
, level
,
3191 layer
, GL_FALSE
, caller
);
3196 _mesa_FramebufferTexture1D(GLenum target
, GLenum attachment
,
3197 GLenum textarget
, GLuint texture
, GLint level
)
3199 framebuffer_texture_with_dims(1, target
, attachment
, textarget
, texture
,
3200 level
, 0, "glFramebufferTexture1D");
3205 _mesa_FramebufferTexture2D(GLenum target
, GLenum attachment
,
3206 GLenum textarget
, GLuint texture
, GLint level
)
3208 framebuffer_texture_with_dims(2, target
, attachment
, textarget
, texture
,
3209 level
, 0, "glFramebufferTexture2D");
3214 _mesa_FramebufferTexture3D(GLenum target
, GLenum attachment
,
3215 GLenum textarget
, GLuint texture
,
3216 GLint level
, GLint layer
)
3218 framebuffer_texture_with_dims(3, target
, attachment
, textarget
, texture
,
3219 level
, layer
, "glFramebufferTexture3D");
3224 _mesa_FramebufferTextureLayer(GLenum target
, GLenum attachment
,
3225 GLuint texture
, GLint level
, GLint layer
)
3227 GET_CURRENT_CONTEXT(ctx
);
3228 struct gl_framebuffer
*fb
;
3229 struct gl_texture_object
*texObj
;
3230 GLenum textarget
= 0;
3232 const char *func
= "glFramebufferTextureLayer";
3234 /* Get the framebuffer object */
3235 fb
= get_framebuffer_target(ctx
, target
);
3237 _mesa_error(ctx
, GL_INVALID_ENUM
,
3238 "glFramebufferTextureLayer(invalid target %s)",
3239 _mesa_enum_to_string(target
));
3243 /* Get the texture object */
3244 if (!get_texture_for_framebuffer(ctx
, texture
, false, func
, &texObj
))
3248 if (!check_texture_target(ctx
, texObj
->Target
, func
))
3251 if (!check_layer(ctx
, texObj
->Target
, layer
, func
))
3254 if (!check_level(ctx
, texObj
->Target
, level
, func
))
3257 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3258 assert(layer
>= 0 && layer
< 6);
3259 textarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ layer
;
3264 _mesa_framebuffer_texture(ctx
, fb
, attachment
, texObj
, textarget
, level
,
3265 layer
, GL_FALSE
, func
);
3270 _mesa_NamedFramebufferTextureLayer(GLuint framebuffer
, GLenum attachment
,
3271 GLuint texture
, GLint level
, GLint layer
)
3273 GET_CURRENT_CONTEXT(ctx
);
3274 struct gl_framebuffer
*fb
;
3275 struct gl_texture_object
*texObj
;
3276 GLenum textarget
= 0;
3278 const char *func
= "glNamedFramebufferTextureLayer";
3280 /* Get the framebuffer object */
3281 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
, func
);
3285 /* Get the texture object */
3286 if (!get_texture_for_framebuffer(ctx
, texture
, false, func
, &texObj
))
3290 if (!check_texture_target(ctx
, texObj
->Target
, func
))
3293 if (!check_layer(ctx
, texObj
->Target
, layer
, func
))
3296 if (!check_level(ctx
, texObj
->Target
, level
, func
))
3299 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3300 assert(layer
>= 0 && layer
< 6);
3301 textarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ layer
;
3306 _mesa_framebuffer_texture(ctx
, fb
, attachment
, texObj
, textarget
, level
,
3307 layer
, GL_FALSE
, func
);
3312 _mesa_FramebufferTexture(GLenum target
, GLenum attachment
,
3313 GLuint texture
, GLint level
)
3315 GET_CURRENT_CONTEXT(ctx
);
3316 struct gl_framebuffer
*fb
;
3317 struct gl_texture_object
*texObj
;
3318 GLboolean layered
= GL_FALSE
;
3320 const char *func
= "FramebufferTexture";
3322 if (!_mesa_has_geometry_shaders(ctx
)) {
3323 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3324 "unsupported function (glFramebufferTexture) called");
3328 /* Get the framebuffer object */
3329 fb
= get_framebuffer_target(ctx
, target
);
3331 _mesa_error(ctx
, GL_INVALID_ENUM
,
3332 "glFramebufferTexture(invalid target %s)",
3333 _mesa_enum_to_string(target
));
3337 /* Get the texture object */
3338 if (!get_texture_for_framebuffer(ctx
, texture
, true, func
, &texObj
))
3342 if (!check_layered_texture_target(ctx
, texObj
->Target
, func
, &layered
))
3345 if (!check_level(ctx
, texObj
->Target
, level
, func
))
3349 _mesa_framebuffer_texture(ctx
, fb
, attachment
, texObj
, 0, level
,
3355 _mesa_NamedFramebufferTexture(GLuint framebuffer
, GLenum attachment
,
3356 GLuint texture
, GLint level
)
3358 GET_CURRENT_CONTEXT(ctx
);
3359 struct gl_framebuffer
*fb
;
3360 struct gl_texture_object
*texObj
;
3361 GLboolean layered
= GL_FALSE
;
3363 const char *func
= "glNamedFramebufferTexture";
3365 if (!_mesa_has_geometry_shaders(ctx
)) {
3366 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3367 "unsupported function (glNamedFramebufferTexture) called");
3371 /* Get the framebuffer object */
3372 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
, func
);
3376 /* Get the texture object */
3377 if (!get_texture_for_framebuffer(ctx
, texture
, true, func
, &texObj
))
3381 if (!check_layered_texture_target(ctx
, texObj
->Target
, func
,
3385 if (!check_level(ctx
, texObj
->Target
, level
, func
))
3389 _mesa_framebuffer_texture(ctx
, fb
, attachment
, texObj
, 0, level
,
3395 _mesa_framebuffer_renderbuffer(struct gl_context
*ctx
,
3396 struct gl_framebuffer
*fb
,
3398 struct gl_renderbuffer
*rb
,
3401 struct gl_renderbuffer_attachment
*att
;
3403 if (_mesa_is_winsys_fbo(fb
)) {
3404 /* Can't attach new renderbuffers to a window system framebuffer */
3405 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3406 "%s(window-system framebuffer)", func
);
3410 att
= get_attachment(ctx
, fb
, attachment
);
3412 _mesa_error(ctx
, GL_INVALID_ENUM
,
3413 "%s(invalid attachment %s)", func
,
3414 _mesa_enum_to_string(attachment
));
3418 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
&&
3419 rb
&& rb
->Format
!= MESA_FORMAT_NONE
) {
3420 /* make sure the renderbuffer is a depth/stencil format */
3421 const GLenum baseFormat
= _mesa_get_format_base_format(rb
->Format
);
3422 if (baseFormat
!= GL_DEPTH_STENCIL
) {
3423 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3424 "%s(renderbuffer is not DEPTH_STENCIL format)", func
);
3429 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3431 assert(ctx
->Driver
.FramebufferRenderbuffer
);
3432 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
3434 /* Some subsequent GL commands may depend on the framebuffer's visual
3435 * after the binding is updated. Update visual info now.
3437 _mesa_update_framebuffer_visual(ctx
, fb
);
3442 _mesa_FramebufferRenderbuffer(GLenum target
, GLenum attachment
,
3443 GLenum renderbuffertarget
,
3444 GLuint renderbuffer
)
3446 struct gl_framebuffer
*fb
;
3447 struct gl_renderbuffer
*rb
;
3448 GET_CURRENT_CONTEXT(ctx
);
3450 fb
= get_framebuffer_target(ctx
, target
);
3452 _mesa_error(ctx
, GL_INVALID_ENUM
,
3453 "glFramebufferRenderbuffer(invalid target %s)",
3454 _mesa_enum_to_string(target
));
3458 if (renderbuffertarget
!= GL_RENDERBUFFER
) {
3459 _mesa_error(ctx
, GL_INVALID_ENUM
,
3460 "glFramebufferRenderbuffer(renderbuffertarget is not "
3461 "GL_RENDERBUFFER)");
3466 rb
= _mesa_lookup_renderbuffer_err(ctx
, renderbuffer
,
3467 "glFramebufferRenderbuffer");
3472 /* remove renderbuffer attachment */
3476 _mesa_framebuffer_renderbuffer(ctx
, fb
, attachment
, rb
,
3477 "glFramebufferRenderbuffer");
3482 _mesa_NamedFramebufferRenderbuffer(GLuint framebuffer
, GLenum attachment
,
3483 GLenum renderbuffertarget
,
3484 GLuint renderbuffer
)
3486 struct gl_framebuffer
*fb
;
3487 struct gl_renderbuffer
*rb
;
3488 GET_CURRENT_CONTEXT(ctx
);
3490 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3491 "glNamedFramebufferRenderbuffer");
3495 if (renderbuffertarget
!= GL_RENDERBUFFER
) {
3496 _mesa_error(ctx
, GL_INVALID_ENUM
,
3497 "glNamedFramebufferRenderbuffer(renderbuffertarget is not "
3498 "GL_RENDERBUFFER)");
3503 rb
= _mesa_lookup_renderbuffer_err(ctx
, renderbuffer
,
3504 "glNamedFramebufferRenderbuffer");
3509 /* remove renderbuffer attachment */
3513 _mesa_framebuffer_renderbuffer(ctx
, fb
, attachment
, rb
,
3514 "glNamedFramebufferRenderbuffer");
3519 _mesa_get_framebuffer_attachment_parameter(struct gl_context
*ctx
,
3520 struct gl_framebuffer
*buffer
,
3521 GLenum attachment
, GLenum pname
,
3522 GLint
*params
, const char *caller
)
3524 const struct gl_renderbuffer_attachment
*att
;
3527 /* The error differs in GL and GLES. */
3528 err
= _mesa_is_desktop_gl(ctx
) ? GL_INVALID_OPERATION
: GL_INVALID_ENUM
;
3530 if (_mesa_is_winsys_fbo(buffer
)) {
3531 /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
3534 * "If the framebuffer currently bound to target is zero, then
3535 * INVALID_OPERATION is generated."
3537 * The EXT_framebuffer_object spec has the same wording, and the
3538 * OES_framebuffer_object spec refers to the EXT_framebuffer_object
3541 if ((!_mesa_is_desktop_gl(ctx
) ||
3542 !ctx
->Extensions
.ARB_framebuffer_object
)
3543 && !_mesa_is_gles3(ctx
)) {
3544 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3545 "%s(window-system framebuffer)", caller
);
3549 if (_mesa_is_gles3(ctx
) && attachment
!= GL_BACK
&&
3550 attachment
!= GL_DEPTH
&& attachment
!= GL_STENCIL
) {
3551 _mesa_error(ctx
, GL_INVALID_ENUM
,
3552 "%s(invalid attachment %s)", caller
,
3553 _mesa_enum_to_string(attachment
));
3556 /* the default / window-system FBO */
3557 att
= _mesa_get_fb0_attachment(ctx
, buffer
, attachment
);
3560 /* user-created framebuffer FBO */
3561 att
= get_attachment(ctx
, buffer
, attachment
);
3565 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", caller
,
3566 _mesa_enum_to_string(attachment
));
3570 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3571 const struct gl_renderbuffer_attachment
*depthAtt
, *stencilAtt
;
3572 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
) {
3573 /* This behavior is first specified in OpenGL 4.4 specification.
3575 * From the OpenGL 4.4 spec page 275:
3576 * "This query cannot be performed for a combined depth+stencil
3577 * attachment, since it does not have a single format."
3579 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3580 "%s(GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE"
3581 " is invalid for depth+stencil attachment)", caller
);
3584 /* the depth and stencil attachments must point to the same buffer */
3585 depthAtt
= get_attachment(ctx
, buffer
, GL_DEPTH_ATTACHMENT
);
3586 stencilAtt
= get_attachment(ctx
, buffer
, GL_STENCIL_ATTACHMENT
);
3587 if (depthAtt
->Renderbuffer
!= stencilAtt
->Renderbuffer
) {
3588 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3589 "%s(DEPTH/STENCIL attachments differ)", caller
);
3594 /* No need to flush here */
3597 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
3598 *params
= _mesa_is_winsys_fbo(buffer
)
3599 ? GL_FRAMEBUFFER_DEFAULT
: att
->Type
;
3601 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
3602 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
3603 *params
= att
->Renderbuffer
->Name
;
3605 else if (att
->Type
== GL_TEXTURE
) {
3606 *params
= att
->Texture
->Name
;
3609 assert(att
->Type
== GL_NONE
);
3610 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
3613 goto invalid_pname_enum
;
3617 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
3618 if (att
->Type
== GL_TEXTURE
) {
3619 *params
= att
->TextureLevel
;
3621 else if (att
->Type
== GL_NONE
) {
3622 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3623 _mesa_enum_to_string(pname
));
3626 goto invalid_pname_enum
;
3629 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
3630 if (att
->Type
== GL_TEXTURE
) {
3631 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
3632 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
3638 else if (att
->Type
== GL_NONE
) {
3639 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3640 _mesa_enum_to_string(pname
));
3643 goto invalid_pname_enum
;
3646 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
3647 if (ctx
->API
== API_OPENGLES
) {
3648 goto invalid_pname_enum
;
3649 } else if (att
->Type
== GL_NONE
) {
3650 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3651 _mesa_enum_to_string(pname
));
3652 } else if (att
->Type
== GL_TEXTURE
) {
3653 if (att
->Texture
&& (att
->Texture
->Target
== GL_TEXTURE_3D
||
3654 att
->Texture
->Target
== GL_TEXTURE_2D_ARRAY
)) {
3655 *params
= att
->Zoffset
;
3662 goto invalid_pname_enum
;
3665 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
:
3666 if ((!_mesa_is_desktop_gl(ctx
) ||
3667 !ctx
->Extensions
.ARB_framebuffer_object
)
3668 && !_mesa_is_gles3(ctx
)) {
3669 goto invalid_pname_enum
;
3671 else if (att
->Type
== GL_NONE
) {
3672 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3673 _mesa_enum_to_string(pname
));
3676 if (ctx
->Extensions
.EXT_framebuffer_sRGB
) {
3678 _mesa_get_format_color_encoding(att
->Renderbuffer
->Format
);
3681 /* According to ARB_framebuffer_sRGB, we should return LINEAR
3682 * if the sRGB conversion is unsupported. */
3683 *params
= GL_LINEAR
;
3687 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
:
3688 if ((ctx
->API
!= API_OPENGL_COMPAT
||
3689 !ctx
->Extensions
.ARB_framebuffer_object
)
3690 && ctx
->API
!= API_OPENGL_CORE
3691 && !_mesa_is_gles3(ctx
)) {
3692 goto invalid_pname_enum
;
3694 else if (att
->Type
== GL_NONE
) {
3695 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3696 _mesa_enum_to_string(pname
));
3699 mesa_format format
= att
->Renderbuffer
->Format
;
3701 /* Page 235 (page 247 of the PDF) in section 6.1.13 of the OpenGL ES
3704 * "If pname is FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE.... If
3705 * attachment is DEPTH_STENCIL_ATTACHMENT the query will fail and
3706 * generate an INVALID_OPERATION error.
3708 if (_mesa_is_gles3(ctx
) &&
3709 attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3710 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3712 "GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE of "
3713 "GL_DEPTH_STENCIL_ATTACHMENT)", caller
);
3717 if (format
== MESA_FORMAT_S_UINT8
) {
3721 else if (format
== MESA_FORMAT_Z32_FLOAT_S8X24_UINT
) {
3722 /* depends on the attachment parameter */
3723 if (attachment
== GL_STENCIL_ATTACHMENT
) {
3731 *params
= _mesa_get_format_datatype(format
);
3735 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
3736 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
3737 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
3738 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
3739 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
3740 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
3741 if ((!_mesa_is_desktop_gl(ctx
) ||
3742 !ctx
->Extensions
.ARB_framebuffer_object
)
3743 && !_mesa_is_gles3(ctx
)) {
3744 goto invalid_pname_enum
;
3746 else if (att
->Type
== GL_NONE
) {
3747 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3748 _mesa_enum_to_string(pname
));
3750 else if (att
->Texture
) {
3751 const struct gl_texture_image
*texImage
=
3752 _mesa_select_tex_image(att
->Texture
, att
->Texture
->Target
,
3755 *params
= get_component_bits(pname
, texImage
->_BaseFormat
,
3756 texImage
->TexFormat
);
3762 else if (att
->Renderbuffer
) {
3763 *params
= get_component_bits(pname
, att
->Renderbuffer
->_BaseFormat
,
3764 att
->Renderbuffer
->Format
);
3767 _mesa_problem(ctx
, "%s: invalid FBO attachment structure", caller
);
3770 case GL_FRAMEBUFFER_ATTACHMENT_LAYERED
:
3771 if (!_mesa_has_geometry_shaders(ctx
)) {
3772 goto invalid_pname_enum
;
3773 } else if (att
->Type
== GL_TEXTURE
) {
3774 *params
= att
->Layered
;
3775 } else if (att
->Type
== GL_NONE
) {
3776 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3777 _mesa_enum_to_string(pname
));
3779 goto invalid_pname_enum
;
3783 goto invalid_pname_enum
;
3789 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname %s)", caller
,
3790 _mesa_enum_to_string(pname
));
3796 _mesa_GetFramebufferAttachmentParameteriv(GLenum target
, GLenum attachment
,
3797 GLenum pname
, GLint
*params
)
3799 GET_CURRENT_CONTEXT(ctx
);
3800 struct gl_framebuffer
*buffer
;
3802 buffer
= get_framebuffer_target(ctx
, target
);
3804 _mesa_error(ctx
, GL_INVALID_ENUM
,
3805 "glGetFramebufferAttachmentParameteriv(invalid target %s)",
3806 _mesa_enum_to_string(target
));
3810 _mesa_get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
3812 "glGetFramebufferAttachmentParameteriv");
3817 _mesa_GetNamedFramebufferAttachmentParameteriv(GLuint framebuffer
,
3819 GLenum pname
, GLint
*params
)
3821 GET_CURRENT_CONTEXT(ctx
);
3822 struct gl_framebuffer
*buffer
;
3825 buffer
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3826 "glGetNamedFramebufferAttachmentParameteriv");
3832 * Section 9.2 Binding and Managing Framebuffer Objects of the OpenGL
3833 * 4.5 core spec (30.10.2014, PDF page 314):
3834 * "If framebuffer is zero, then the default draw framebuffer is
3837 buffer
= ctx
->WinSysDrawBuffer
;
3840 _mesa_get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
3842 "glGetNamedFramebufferAttachmentParameteriv");
3847 _mesa_NamedFramebufferParameteri(GLuint framebuffer
, GLenum pname
,
3850 GET_CURRENT_CONTEXT(ctx
);
3851 struct gl_framebuffer
*fb
= NULL
;
3853 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
3854 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3855 "glNamedFramebufferParameteri("
3856 "ARB_framebuffer_no_attachments not implemented)");
3860 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3861 "glNamedFramebufferParameteri");
3864 framebuffer_parameteri(ctx
, fb
, pname
, param
,
3865 "glNamedFramebufferParameteriv");
3871 _mesa_GetNamedFramebufferParameteriv(GLuint framebuffer
, GLenum pname
,
3874 GET_CURRENT_CONTEXT(ctx
);
3875 struct gl_framebuffer
*fb
;
3877 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
3878 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3879 "glNamedFramebufferParameteriv("
3880 "ARB_framebuffer_no_attachments not implemented)");
3885 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3886 "glGetNamedFramebufferParameteriv");
3888 fb
= ctx
->WinSysDrawBuffer
;
3892 get_framebuffer_parameteriv(ctx
, fb
, pname
, param
,
3893 "glGetNamedFramebufferParameteriv");
3899 invalidate_framebuffer_storage(struct gl_context
*ctx
,
3900 struct gl_framebuffer
*fb
,
3901 GLsizei numAttachments
,
3902 const GLenum
*attachments
, GLint x
, GLint y
,
3903 GLsizei width
, GLsizei height
, const char *name
)
3907 /* Section 17.4 Whole Framebuffer Operations of the OpenGL 4.5 Core
3908 * Spec (2.2.2015, PDF page 522) says:
3909 * "An INVALID_VALUE error is generated if numAttachments, width, or
3910 * height is negative."
3912 if (numAttachments
< 0) {
3913 _mesa_error(ctx
, GL_INVALID_VALUE
,
3914 "%s(numAttachments < 0)", name
);
3919 _mesa_error(ctx
, GL_INVALID_VALUE
,
3920 "%s(width < 0)", name
);
3925 _mesa_error(ctx
, GL_INVALID_VALUE
,
3926 "%s(height < 0)", name
);
3930 /* The GL_ARB_invalidate_subdata spec says:
3932 * "If an attachment is specified that does not exist in the
3933 * framebuffer bound to <target>, it is ignored."
3937 * "If <attachments> contains COLOR_ATTACHMENTm and m is greater than
3938 * or equal to the value of MAX_COLOR_ATTACHMENTS, then the error
3939 * INVALID_OPERATION is generated."
3941 * No mention is made of GL_AUXi being out of range. Therefore, we allow
3942 * any enum that can be allowed by the API (OpenGL ES 3.0 has a different
3943 * set of retrictions).
3945 for (i
= 0; i
< numAttachments
; i
++) {
3946 if (_mesa_is_winsys_fbo(fb
)) {
3947 switch (attachments
[i
]) {
3953 /* Accumulation buffers and auxilary buffers were removed in
3954 * OpenGL 3.1, and they never existed in OpenGL ES.
3956 if (ctx
->API
!= API_OPENGL_COMPAT
)
3966 case GL_FRONT_RIGHT
:
3967 if (!_mesa_is_desktop_gl(ctx
))
3974 switch (attachments
[i
]) {
3975 case GL_DEPTH_ATTACHMENT
:
3976 case GL_STENCIL_ATTACHMENT
:
3978 case GL_DEPTH_STENCIL_ATTACHMENT
:
3979 /* GL_DEPTH_STENCIL_ATTACHMENT is a valid attachment point only
3980 * in desktop and ES 3.0 profiles. Note that OES_packed_depth_stencil
3981 * extension does not make this attachment point valid on ES 2.0.
3983 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
))
3986 case GL_COLOR_ATTACHMENT0
:
3987 case GL_COLOR_ATTACHMENT1
:
3988 case GL_COLOR_ATTACHMENT2
:
3989 case GL_COLOR_ATTACHMENT3
:
3990 case GL_COLOR_ATTACHMENT4
:
3991 case GL_COLOR_ATTACHMENT5
:
3992 case GL_COLOR_ATTACHMENT6
:
3993 case GL_COLOR_ATTACHMENT7
:
3994 case GL_COLOR_ATTACHMENT8
:
3995 case GL_COLOR_ATTACHMENT9
:
3996 case GL_COLOR_ATTACHMENT10
:
3997 case GL_COLOR_ATTACHMENT11
:
3998 case GL_COLOR_ATTACHMENT12
:
3999 case GL_COLOR_ATTACHMENT13
:
4000 case GL_COLOR_ATTACHMENT14
:
4001 case GL_COLOR_ATTACHMENT15
: {
4002 unsigned k
= attachments
[i
] - GL_COLOR_ATTACHMENT0
;
4003 if (k
>= ctx
->Const
.MaxColorAttachments
) {
4004 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4005 "%s(attachment >= max. color attachments)", name
);
4016 /* We don't actually do anything for this yet. Just return after
4017 * validating the parameters and generating the required errors.
4022 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", name
,
4023 _mesa_enum_to_string(attachments
[i
]));
4029 _mesa_InvalidateSubFramebuffer(GLenum target
, GLsizei numAttachments
,
4030 const GLenum
*attachments
, GLint x
, GLint y
,
4031 GLsizei width
, GLsizei height
)
4033 struct gl_framebuffer
*fb
;
4034 GET_CURRENT_CONTEXT(ctx
);
4036 fb
= get_framebuffer_target(ctx
, target
);
4038 _mesa_error(ctx
, GL_INVALID_ENUM
,
4039 "glInvalidateSubFramebuffer(invalid target %s)",
4040 _mesa_enum_to_string(target
));
4044 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4045 x
, y
, width
, height
,
4046 "glInvalidateSubFramebuffer");
4051 _mesa_InvalidateNamedFramebufferSubData(GLuint framebuffer
,
4052 GLsizei numAttachments
,
4053 const GLenum
*attachments
,
4055 GLsizei width
, GLsizei height
)
4057 struct gl_framebuffer
*fb
;
4058 GET_CURRENT_CONTEXT(ctx
);
4060 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
4061 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
4062 * default draw framebuffer is affected."
4065 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4066 "glInvalidateNamedFramebufferSubData");
4071 fb
= ctx
->WinSysDrawBuffer
;
4073 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4074 x
, y
, width
, height
,
4075 "glInvalidateNamedFramebufferSubData");
4080 _mesa_InvalidateFramebuffer(GLenum target
, GLsizei numAttachments
,
4081 const GLenum
*attachments
)
4083 struct gl_framebuffer
*fb
;
4084 GET_CURRENT_CONTEXT(ctx
);
4086 fb
= get_framebuffer_target(ctx
, target
);
4088 _mesa_error(ctx
, GL_INVALID_ENUM
,
4089 "glInvalidateFramebuffer(invalid target %s)",
4090 _mesa_enum_to_string(target
));
4094 /* The GL_ARB_invalidate_subdata spec says:
4098 * void InvalidateFramebuffer(enum target,
4099 * sizei numAttachments,
4100 * const enum *attachments);
4102 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
4103 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
4104 * <MAX_VIEWPORT_DIMS[1]> respectively."
4106 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4108 MAX_VIEWPORT_WIDTH
, MAX_VIEWPORT_HEIGHT
,
4109 "glInvalidateFramebuffer");
4114 _mesa_InvalidateNamedFramebufferData(GLuint framebuffer
,
4115 GLsizei numAttachments
,
4116 const GLenum
*attachments
)
4118 struct gl_framebuffer
*fb
;
4119 GET_CURRENT_CONTEXT(ctx
);
4121 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
4122 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
4123 * default draw framebuffer is affected."
4126 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4127 "glInvalidateNamedFramebufferData");
4132 fb
= ctx
->WinSysDrawBuffer
;
4134 /* The GL_ARB_invalidate_subdata spec says:
4138 * void InvalidateFramebuffer(enum target,
4139 * sizei numAttachments,
4140 * const enum *attachments);
4142 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
4143 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
4144 * <MAX_VIEWPORT_DIMS[1]> respectively."
4146 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4148 MAX_VIEWPORT_WIDTH
, MAX_VIEWPORT_HEIGHT
,
4149 "glInvalidateNamedFramebufferData");
4154 _mesa_DiscardFramebufferEXT(GLenum target
, GLsizei numAttachments
,
4155 const GLenum
*attachments
)
4157 struct gl_framebuffer
*fb
;
4160 GET_CURRENT_CONTEXT(ctx
);
4162 fb
= get_framebuffer_target(ctx
, target
);
4164 _mesa_error(ctx
, GL_INVALID_ENUM
,
4165 "glDiscardFramebufferEXT(target %s)",
4166 _mesa_enum_to_string(target
));
4170 if (numAttachments
< 0) {
4171 _mesa_error(ctx
, GL_INVALID_VALUE
,
4172 "glDiscardFramebufferEXT(numAttachments < 0)");
4176 for (i
= 0; i
< numAttachments
; i
++) {
4177 switch (attachments
[i
]) {
4181 if (_mesa_is_user_fbo(fb
))
4184 case GL_COLOR_ATTACHMENT0
:
4185 case GL_DEPTH_ATTACHMENT
:
4186 case GL_STENCIL_ATTACHMENT
:
4187 if (_mesa_is_winsys_fbo(fb
))
4195 if (ctx
->Driver
.DiscardFramebuffer
)
4196 ctx
->Driver
.DiscardFramebuffer(ctx
, target
, numAttachments
, attachments
);
4201 _mesa_error(ctx
, GL_INVALID_ENUM
,
4202 "glDiscardFramebufferEXT(attachment %s)",
4203 _mesa_enum_to_string(attachments
[i
]));