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
38 #include "debug_output.h"
42 #include "framebuffer.h"
43 #include "glformats.h"
46 #include "multisample.h"
48 #include "renderbuffer.h"
57 * None of the GL_EXT_framebuffer_object functions are compiled into
64 * When glGenRender/FramebuffersEXT() is called we insert pointers to
65 * these placeholder objects into the hash table.
66 * Later, when the object ID is first bound, we replace the placeholder
67 * with the real frame/renderbuffer.
69 static struct gl_framebuffer DummyFramebuffer
;
70 static struct gl_renderbuffer DummyRenderbuffer
;
72 /* We bind this framebuffer when applications pass a NULL
73 * drawable/surface in make current. */
74 static struct gl_framebuffer IncompleteFramebuffer
;
78 delete_dummy_renderbuffer(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
)
84 delete_dummy_framebuffer(struct gl_framebuffer
*fb
)
91 _mesa_init_fbobjects(struct gl_context
*ctx
)
93 simple_mtx_init(&DummyFramebuffer
.Mutex
, mtx_plain
);
94 simple_mtx_init(&DummyRenderbuffer
.Mutex
, mtx_plain
);
95 simple_mtx_init(&IncompleteFramebuffer
.Mutex
, mtx_plain
);
96 DummyFramebuffer
.Delete
= delete_dummy_framebuffer
;
97 DummyRenderbuffer
.Delete
= delete_dummy_renderbuffer
;
98 IncompleteFramebuffer
.Delete
= delete_dummy_framebuffer
;
101 struct gl_framebuffer
*
102 _mesa_get_incomplete_framebuffer(void)
104 return &IncompleteFramebuffer
;
108 * Helper routine for getting a gl_renderbuffer.
110 struct gl_renderbuffer
*
111 _mesa_lookup_renderbuffer(struct gl_context
*ctx
, GLuint id
)
113 struct gl_renderbuffer
*rb
;
118 rb
= (struct gl_renderbuffer
*)
119 _mesa_HashLookup(ctx
->Shared
->RenderBuffers
, id
);
125 * A convenience function for direct state access that throws
126 * GL_INVALID_OPERATION if the renderbuffer doesn't exist.
128 struct gl_renderbuffer
*
129 _mesa_lookup_renderbuffer_err(struct gl_context
*ctx
, GLuint id
,
132 struct gl_renderbuffer
*rb
;
134 rb
= _mesa_lookup_renderbuffer(ctx
, id
);
135 if (!rb
|| rb
== &DummyRenderbuffer
) {
136 _mesa_error(ctx
, GL_INVALID_OPERATION
,
137 "%s(non-existent renderbuffer %u)", func
, id
);
146 * Helper routine for getting a gl_framebuffer.
148 struct gl_framebuffer
*
149 _mesa_lookup_framebuffer(struct gl_context
*ctx
, GLuint id
)
151 struct gl_framebuffer
*fb
;
156 fb
= (struct gl_framebuffer
*)
157 _mesa_HashLookup(ctx
->Shared
->FrameBuffers
, id
);
163 struct gl_framebuffer
*
164 _mesa_lookup_framebuffer_dsa(struct gl_context
*ctx
, GLuint id
,
167 struct gl_framebuffer
*fb
;
172 fb
= _mesa_lookup_framebuffer(ctx
, id
);
174 /* Name exists but buffer is not initialized */
175 if (fb
== &DummyFramebuffer
) {
176 fb
= ctx
->Driver
.NewFramebuffer(ctx
, id
);
177 _mesa_HashLockMutex(ctx
->Shared
->FrameBuffers
);
178 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, id
, fb
);
179 _mesa_HashUnlockMutex(ctx
->Shared
->BufferObjects
);
181 /* Name doesn't exist */
183 _mesa_HashLockMutex(ctx
->Shared
->FrameBuffers
);
184 fb
= ctx
->Driver
.NewFramebuffer(ctx
, id
);
186 _mesa_HashUnlockMutex(ctx
->Shared
->FrameBuffers
);
187 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
190 _mesa_HashInsertLocked(ctx
->Shared
->BufferObjects
, id
, fb
);
191 _mesa_HashUnlockMutex(ctx
->Shared
->BufferObjects
);
198 * A convenience function for direct state access that throws
199 * GL_INVALID_OPERATION if the framebuffer doesn't exist.
201 struct gl_framebuffer
*
202 _mesa_lookup_framebuffer_err(struct gl_context
*ctx
, GLuint id
,
205 struct gl_framebuffer
*fb
;
207 fb
= _mesa_lookup_framebuffer(ctx
, id
);
208 if (!fb
|| fb
== &DummyFramebuffer
) {
209 _mesa_error(ctx
, GL_INVALID_OPERATION
,
210 "%s(non-existent framebuffer %u)", func
, id
);
219 * Mark the given framebuffer as invalid. This will force the
220 * test for framebuffer completeness to be done before the framebuffer
224 invalidate_framebuffer(struct gl_framebuffer
*fb
)
226 fb
->_Status
= 0; /* "indeterminate" */
231 * Return the gl_framebuffer object which corresponds to the given
232 * framebuffer target, such as GL_DRAW_FRAMEBUFFER.
233 * Check support for GL_EXT_framebuffer_blit to determine if certain
235 * \return gl_framebuffer pointer or NULL if target is illegal
237 static struct gl_framebuffer
*
238 get_framebuffer_target(struct gl_context
*ctx
, GLenum target
)
240 bool have_fb_blit
= _mesa_is_gles3(ctx
) || _mesa_is_desktop_gl(ctx
);
242 case GL_DRAW_FRAMEBUFFER
:
243 return have_fb_blit
? ctx
->DrawBuffer
: NULL
;
244 case GL_READ_FRAMEBUFFER
:
245 return have_fb_blit
? ctx
->ReadBuffer
: NULL
;
246 case GL_FRAMEBUFFER_EXT
:
247 return ctx
->DrawBuffer
;
255 * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding
256 * gl_renderbuffer_attachment object.
257 * This function is only used for user-created FB objects, not the
258 * default / window-system FB object.
259 * If \p attachment is GL_DEPTH_STENCIL_ATTACHMENT, return a pointer to
260 * the depth buffer attachment point.
261 * Returns if the attachment is a GL_COLOR_ATTACHMENTm_EXT on
262 * is_color_attachment, because several callers would return different errors
263 * if they don't find the attachment.
265 static struct gl_renderbuffer_attachment
*
266 get_attachment(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
267 GLenum attachment
, bool *is_color_attachment
)
271 assert(_mesa_is_user_fbo(fb
));
273 if (is_color_attachment
)
274 *is_color_attachment
= false;
276 switch (attachment
) {
277 case GL_COLOR_ATTACHMENT0_EXT
:
278 case GL_COLOR_ATTACHMENT1_EXT
:
279 case GL_COLOR_ATTACHMENT2_EXT
:
280 case GL_COLOR_ATTACHMENT3_EXT
:
281 case GL_COLOR_ATTACHMENT4_EXT
:
282 case GL_COLOR_ATTACHMENT5_EXT
:
283 case GL_COLOR_ATTACHMENT6_EXT
:
284 case GL_COLOR_ATTACHMENT7_EXT
:
285 case GL_COLOR_ATTACHMENT8_EXT
:
286 case GL_COLOR_ATTACHMENT9_EXT
:
287 case GL_COLOR_ATTACHMENT10_EXT
:
288 case GL_COLOR_ATTACHMENT11_EXT
:
289 case GL_COLOR_ATTACHMENT12_EXT
:
290 case GL_COLOR_ATTACHMENT13_EXT
:
291 case GL_COLOR_ATTACHMENT14_EXT
:
292 case GL_COLOR_ATTACHMENT15_EXT
:
293 if (is_color_attachment
)
294 *is_color_attachment
= true;
295 /* Only OpenGL ES 1.x forbids color attachments other than
296 * GL_COLOR_ATTACHMENT0. For all other APIs the limit set by the
299 i
= attachment
- GL_COLOR_ATTACHMENT0_EXT
;
300 if (i
>= ctx
->Const
.MaxColorAttachments
301 || (i
> 0 && ctx
->API
== API_OPENGLES
)) {
304 return &fb
->Attachment
[BUFFER_COLOR0
+ i
];
305 case GL_DEPTH_STENCIL_ATTACHMENT
:
306 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles3(ctx
))
309 case GL_DEPTH_ATTACHMENT_EXT
:
310 return &fb
->Attachment
[BUFFER_DEPTH
];
311 case GL_STENCIL_ATTACHMENT_EXT
:
312 return &fb
->Attachment
[BUFFER_STENCIL
];
320 * As above, but only used for getting attachments of the default /
321 * window-system framebuffer (not user-created framebuffer objects).
323 static struct gl_renderbuffer_attachment
*
324 get_fb0_attachment(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
327 assert(_mesa_is_winsys_fbo(fb
));
329 attachment
= _mesa_back_to_front_if_single_buffered(fb
, attachment
);
331 if (_mesa_is_gles3(ctx
)) {
332 switch (attachment
) {
334 /* Since there is no stereo rendering in ES 3.0, only return the
337 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
339 /* We might get this if back_to_front triggers above */
340 return &fb
->Attachment
[BUFFER_FRONT_LEFT
];
342 return &fb
->Attachment
[BUFFER_DEPTH
];
344 return &fb
->Attachment
[BUFFER_STENCIL
];
346 unreachable("invalid attachment");
350 switch (attachment
) {
352 /* Front buffers can be allocated on the first use, but
353 * glGetFramebufferAttachmentParameteriv must work even if that
354 * allocation hasn't happened yet. In such case, use the back buffer,
355 * which should be the same.
357 if (fb
->Attachment
[BUFFER_FRONT_LEFT
].Type
== GL_NONE
)
358 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
360 return &fb
->Attachment
[BUFFER_FRONT_LEFT
];
363 if (fb
->Attachment
[BUFFER_FRONT_RIGHT
].Type
== GL_NONE
)
364 return &fb
->Attachment
[BUFFER_BACK_RIGHT
];
366 return &fb
->Attachment
[BUFFER_FRONT_RIGHT
];
368 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
370 return &fb
->Attachment
[BUFFER_BACK_RIGHT
];
372 /* The ARB_ES3_1_compatibility spec says:
374 * "Since this command can only query a single framebuffer
375 * attachment, BACK is equivalent to BACK_LEFT."
377 if (ctx
->Extensions
.ARB_ES3_1_compatibility
)
378 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
381 if (fb
->Visual
.numAuxBuffers
== 1) {
382 return &fb
->Attachment
[BUFFER_AUX0
];
386 /* Page 336 (page 352 of the PDF) of the OpenGL 3.0 spec says:
388 * "If the default framebuffer is bound to target, then attachment must
389 * be one of FRONT LEFT, FRONT RIGHT, BACK LEFT, BACK RIGHT, or AUXi,
390 * identifying a color buffer; DEPTH, identifying the depth buffer; or
391 * STENCIL, identifying the stencil buffer."
393 * Revision #34 of the ARB_framebuffer_object spec has essentially the same
394 * language. However, revision #33 of the ARB_framebuffer_object spec
397 * "If the default framebuffer is bound to <target>, then <attachment>
398 * must be one of FRONT_LEFT, FRONT_RIGHT, BACK_LEFT, BACK_RIGHT, AUXi,
399 * DEPTH_BUFFER, or STENCIL_BUFFER, identifying a color buffer, the
400 * depth buffer, or the stencil buffer, and <pname> may be
401 * FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE or
402 * FRAMEBUFFER_ATTACHMENT_OBJECT_NAME."
404 * The enum values for DEPTH_BUFFER and STENCIL_BUFFER have been removed
405 * from glext.h, so shipping apps should not use those values.
407 * Note that neither EXT_framebuffer_object nor OES_framebuffer_object
408 * support queries of the window system FBO.
411 return &fb
->Attachment
[BUFFER_DEPTH
];
413 return &fb
->Attachment
[BUFFER_STENCIL
];
422 * Remove any texture or renderbuffer attached to the given attachment
423 * point. Update reference counts, etc.
426 remove_attachment(struct gl_context
*ctx
,
427 struct gl_renderbuffer_attachment
*att
)
429 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
431 /* tell driver that we're done rendering to this texture. */
432 if (rb
&& rb
->NeedsFinishRenderTexture
)
433 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
435 if (att
->Type
== GL_TEXTURE
) {
436 assert(att
->Texture
);
437 _mesa_reference_texobj(&att
->Texture
, NULL
); /* unbind */
438 assert(!att
->Texture
);
440 if (att
->Type
== GL_TEXTURE
|| att
->Type
== GL_RENDERBUFFER_EXT
) {
441 assert(!att
->Texture
);
442 _mesa_reference_renderbuffer(&att
->Renderbuffer
, NULL
); /* unbind */
443 assert(!att
->Renderbuffer
);
446 att
->Complete
= GL_TRUE
;
450 * Verify a couple error conditions that will lead to an incomplete FBO and
451 * may cause problems for the driver's RenderTexture path.
454 driver_RenderTexture_is_safe(const struct gl_renderbuffer_attachment
*att
)
456 const struct gl_texture_image
*const texImage
=
457 att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
460 texImage
->Width
== 0 || texImage
->Height
== 0 || texImage
->Depth
== 0)
463 if ((texImage
->TexObject
->Target
== GL_TEXTURE_1D_ARRAY
464 && att
->Zoffset
>= texImage
->Height
)
465 || (texImage
->TexObject
->Target
!= GL_TEXTURE_1D_ARRAY
466 && att
->Zoffset
>= texImage
->Depth
))
473 * Create a renderbuffer which will be set up by the driver to wrap the
474 * texture image slice.
476 * By using a gl_renderbuffer (like user-allocated renderbuffers), drivers get
477 * to share most of their framebuffer rendering code between winsys,
478 * renderbuffer, and texture attachments.
480 * The allocated renderbuffer uses a non-zero Name so that drivers can check
481 * it for determining vertical orientation, but we use ~0 to make it fairly
482 * unambiguous with actual user (non-texture) renderbuffers.
485 _mesa_update_texture_renderbuffer(struct gl_context
*ctx
,
486 struct gl_framebuffer
*fb
,
487 struct gl_renderbuffer_attachment
*att
)
489 struct gl_texture_image
*texImage
;
490 struct gl_renderbuffer
*rb
;
492 texImage
= att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
494 rb
= att
->Renderbuffer
;
496 rb
= ctx
->Driver
.NewRenderbuffer(ctx
, ~0);
498 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glFramebufferTexture()");
501 att
->Renderbuffer
= rb
;
503 /* This can't get called on a texture renderbuffer, so set it to NULL
504 * for clarity compared to user renderbuffers.
506 rb
->AllocStorage
= NULL
;
508 rb
->NeedsFinishRenderTexture
= ctx
->Driver
.FinishRenderTexture
!= NULL
;
514 rb
->_BaseFormat
= texImage
->_BaseFormat
;
515 rb
->Format
= texImage
->TexFormat
;
516 rb
->InternalFormat
= texImage
->InternalFormat
;
517 rb
->Width
= texImage
->Width2
;
518 rb
->Height
= texImage
->Height2
;
519 rb
->Depth
= texImage
->Depth2
;
520 rb
->NumSamples
= texImage
->NumSamples
;
521 rb
->NumStorageSamples
= texImage
->NumSamples
;
522 rb
->TexImage
= texImage
;
524 if (driver_RenderTexture_is_safe(att
))
525 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
529 * Bind a texture object to an attachment point.
530 * The previous binding, if any, will be removed first.
533 set_texture_attachment(struct gl_context
*ctx
,
534 struct gl_framebuffer
*fb
,
535 struct gl_renderbuffer_attachment
*att
,
536 struct gl_texture_object
*texObj
,
537 GLenum texTarget
, GLuint level
, GLsizei samples
,
538 GLuint layer
, GLboolean layered
)
540 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
542 if (rb
&& rb
->NeedsFinishRenderTexture
)
543 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
545 if (att
->Texture
== texObj
) {
546 /* re-attaching same texture */
547 assert(att
->Type
== GL_TEXTURE
);
551 remove_attachment(ctx
, att
);
552 att
->Type
= GL_TEXTURE
;
553 assert(!att
->Texture
);
554 _mesa_reference_texobj(&att
->Texture
, texObj
);
556 invalidate_framebuffer(fb
);
558 /* always update these fields */
559 att
->TextureLevel
= level
;
560 att
->NumSamples
= samples
;
561 att
->CubeMapFace
= _mesa_tex_target_to_face(texTarget
);
562 att
->Zoffset
= layer
;
563 att
->Layered
= layered
;
564 att
->Complete
= GL_FALSE
;
566 _mesa_update_texture_renderbuffer(ctx
, fb
, att
);
571 * Bind a renderbuffer to an attachment point.
572 * The previous binding, if any, will be removed first.
575 set_renderbuffer_attachment(struct gl_context
*ctx
,
576 struct gl_renderbuffer_attachment
*att
,
577 struct gl_renderbuffer
*rb
)
579 /* XXX check if re-doing same attachment, exit early */
580 remove_attachment(ctx
, att
);
581 att
->Type
= GL_RENDERBUFFER_EXT
;
582 att
->Texture
= NULL
; /* just to be safe */
583 att
->Layered
= GL_FALSE
;
584 att
->Complete
= GL_FALSE
;
585 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
590 * Fallback for ctx->Driver.FramebufferRenderbuffer()
591 * Attach a renderbuffer object to a framebuffer object.
594 _mesa_FramebufferRenderbuffer_sw(struct gl_context
*ctx
,
595 struct gl_framebuffer
*fb
,
597 struct gl_renderbuffer
*rb
)
599 struct gl_renderbuffer_attachment
*att
;
601 simple_mtx_lock(&fb
->Mutex
);
603 att
= get_attachment(ctx
, fb
, attachment
, NULL
);
606 set_renderbuffer_attachment(ctx
, att
, rb
);
607 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
608 /* do stencil attachment here (depth already done above) */
609 att
= get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
, NULL
);
611 set_renderbuffer_attachment(ctx
, att
, rb
);
613 rb
->AttachedAnytime
= GL_TRUE
;
616 remove_attachment(ctx
, att
);
617 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
618 /* detach stencil (depth was detached above) */
619 att
= get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
, NULL
);
621 remove_attachment(ctx
, att
);
625 invalidate_framebuffer(fb
);
627 simple_mtx_unlock(&fb
->Mutex
);
632 * Fallback for ctx->Driver.ValidateFramebuffer()
633 * Check if the renderbuffer's formats are supported by the software
635 * Drivers should probably override this.
638 _mesa_validate_framebuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
641 for (buf
= 0; buf
< BUFFER_COUNT
; buf
++) {
642 const struct gl_renderbuffer
*rb
= fb
->Attachment
[buf
].Renderbuffer
;
644 switch (rb
->_BaseFormat
) {
646 case GL_LUMINANCE_ALPHA
:
651 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
655 switch (rb
->Format
) {
656 /* XXX This list is likely incomplete. */
657 case MESA_FORMAT_R9G9B9E5_FLOAT
:
658 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
661 /* render buffer format is supported by software rendering */
670 * Return true if the framebuffer has a combined depth/stencil
671 * renderbuffer attached.
674 _mesa_has_depthstencil_combined(const struct gl_framebuffer
*fb
)
676 const struct gl_renderbuffer_attachment
*depth
=
677 &fb
->Attachment
[BUFFER_DEPTH
];
678 const struct gl_renderbuffer_attachment
*stencil
=
679 &fb
->Attachment
[BUFFER_STENCIL
];
681 if (depth
->Type
== stencil
->Type
) {
682 if (depth
->Type
== GL_RENDERBUFFER_EXT
&&
683 depth
->Renderbuffer
== stencil
->Renderbuffer
)
686 if (depth
->Type
== GL_TEXTURE
&&
687 depth
->Texture
== stencil
->Texture
)
699 att_incomplete(const char *msg
)
701 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
702 _mesa_debug(NULL
, "attachment incomplete: %s\n", msg
);
711 fbo_incomplete(struct gl_context
*ctx
, const char *msg
, int index
)
713 static GLuint msg_id
;
715 _mesa_gl_debugf(ctx
, &msg_id
,
716 MESA_DEBUG_SOURCE_API
,
717 MESA_DEBUG_TYPE_OTHER
,
718 MESA_DEBUG_SEVERITY_MEDIUM
,
719 "FBO incomplete: %s [%d]\n", msg
, index
);
721 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
722 _mesa_debug(NULL
, "FBO Incomplete: %s [%d]\n", msg
, index
);
728 * Is the given base format a legal format for a color renderbuffer?
731 _mesa_is_legal_color_format(const struct gl_context
*ctx
, GLenum baseFormat
)
733 switch (baseFormat
) {
738 case GL_LUMINANCE_ALPHA
:
741 return ctx
->API
== API_OPENGL_COMPAT
&&
742 ctx
->Extensions
.ARB_framebuffer_object
;
745 return ctx
->Extensions
.ARB_texture_rg
;
753 * Is the given base format a legal format for a color renderbuffer?
756 is_format_color_renderable(const struct gl_context
*ctx
, mesa_format format
,
757 GLenum internalFormat
)
759 const GLenum baseFormat
=
760 _mesa_get_format_base_format(format
);
763 valid
= _mesa_is_legal_color_format(ctx
, baseFormat
);
764 if (!valid
|| _mesa_is_desktop_gl(ctx
)) {
768 /* Reject additional cases for GLES */
769 switch (internalFormat
) {
773 return _mesa_has_EXT_render_snorm(ctx
);
776 case GL_RGBA16_SNORM
:
777 return _mesa_has_EXT_texture_norm16(ctx
) &&
778 _mesa_has_EXT_render_snorm(ctx
);
797 if (internalFormat
!= GL_RGB10_A2
&&
798 (format
== MESA_FORMAT_B10G10R10A2_UNORM
||
799 format
== MESA_FORMAT_B10G10R10X2_UNORM
||
800 format
== MESA_FORMAT_R10G10B10A2_UNORM
||
801 format
== MESA_FORMAT_R10G10B10X2_UNORM
)) {
810 * Is the given base format a legal format for a depth/stencil renderbuffer?
813 is_legal_depth_format(const struct gl_context
*ctx
, GLenum baseFormat
)
815 switch (baseFormat
) {
816 case GL_DEPTH_COMPONENT
:
817 case GL_DEPTH_STENCIL_EXT
:
826 * Test if an attachment point is complete and update its Complete field.
827 * \param format if GL_COLOR, this is a color attachment point,
828 * if GL_DEPTH, this is a depth component attachment point,
829 * if GL_STENCIL, this is a stencil component attachment point.
832 test_attachment_completeness(const struct gl_context
*ctx
, GLenum format
,
833 struct gl_renderbuffer_attachment
*att
)
835 assert(format
== GL_COLOR
|| format
== GL_DEPTH
|| format
== GL_STENCIL
);
837 /* assume complete */
838 att
->Complete
= GL_TRUE
;
840 /* Look for reasons why the attachment might be incomplete */
841 if (att
->Type
== GL_TEXTURE
) {
842 const struct gl_texture_object
*texObj
= att
->Texture
;
843 const struct gl_texture_image
*texImage
;
847 att_incomplete("no texobj");
848 att
->Complete
= GL_FALSE
;
852 texImage
= texObj
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
854 att_incomplete("no teximage");
855 att
->Complete
= GL_FALSE
;
858 if (texImage
->Width
< 1 || texImage
->Height
< 1) {
859 att_incomplete("teximage width/height=0");
860 att
->Complete
= GL_FALSE
;
864 switch (texObj
->Target
) {
866 if (att
->Zoffset
>= texImage
->Depth
) {
867 att_incomplete("bad z offset");
868 att
->Complete
= GL_FALSE
;
872 case GL_TEXTURE_1D_ARRAY
:
873 if (att
->Zoffset
>= texImage
->Height
) {
874 att_incomplete("bad 1D-array layer");
875 att
->Complete
= GL_FALSE
;
879 case GL_TEXTURE_2D_ARRAY
:
880 if (att
->Zoffset
>= texImage
->Depth
) {
881 att_incomplete("bad 2D-array layer");
882 att
->Complete
= GL_FALSE
;
886 case GL_TEXTURE_CUBE_MAP_ARRAY
:
887 if (att
->Zoffset
>= texImage
->Depth
) {
888 att_incomplete("bad cube-array layer");
889 att
->Complete
= GL_FALSE
;
895 baseFormat
= texImage
->_BaseFormat
;
897 if (format
== GL_COLOR
) {
898 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
899 att_incomplete("bad format");
900 att
->Complete
= GL_FALSE
;
903 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
904 att_incomplete("compressed internalformat");
905 att
->Complete
= GL_FALSE
;
909 /* OES_texture_float allows creation and use of floating point
910 * textures with GL_FLOAT, GL_HALF_FLOAT but it does not allow
911 * these textures to be used as a render target, this is done via
912 * GL_EXT_color_buffer(_half)_float with set of new sized types.
914 if (_mesa_is_gles(ctx
) && (texObj
->_IsFloat
|| texObj
->_IsHalfFloat
)) {
915 att_incomplete("bad internal format");
916 att
->Complete
= GL_FALSE
;
920 else if (format
== GL_DEPTH
) {
921 if (baseFormat
== GL_DEPTH_COMPONENT
) {
924 else if (ctx
->Extensions
.ARB_depth_texture
&&
925 baseFormat
== GL_DEPTH_STENCIL
) {
929 att
->Complete
= GL_FALSE
;
930 att_incomplete("bad depth format");
935 assert(format
== GL_STENCIL
);
936 if (ctx
->Extensions
.ARB_depth_texture
&&
937 baseFormat
== GL_DEPTH_STENCIL
) {
939 } else if (ctx
->Extensions
.ARB_texture_stencil8
&&
940 baseFormat
== GL_STENCIL_INDEX
) {
943 /* no such thing as stencil-only textures */
944 att_incomplete("illegal stencil texture");
945 att
->Complete
= GL_FALSE
;
950 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
951 const GLenum baseFormat
= att
->Renderbuffer
->_BaseFormat
;
953 assert(att
->Renderbuffer
);
954 if (!att
->Renderbuffer
->InternalFormat
||
955 att
->Renderbuffer
->Width
< 1 ||
956 att
->Renderbuffer
->Height
< 1) {
957 att_incomplete("0x0 renderbuffer");
958 att
->Complete
= GL_FALSE
;
961 if (format
== GL_COLOR
) {
962 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
963 att_incomplete("bad renderbuffer color format");
964 att
->Complete
= GL_FALSE
;
968 else if (format
== GL_DEPTH
) {
969 if (baseFormat
== GL_DEPTH_COMPONENT
) {
972 else if (baseFormat
== GL_DEPTH_STENCIL
) {
976 att_incomplete("bad renderbuffer depth format");
977 att
->Complete
= GL_FALSE
;
982 assert(format
== GL_STENCIL
);
983 if (baseFormat
== GL_STENCIL_INDEX
||
984 baseFormat
== GL_DEPTH_STENCIL
) {
988 att
->Complete
= GL_FALSE
;
989 att_incomplete("bad renderbuffer stencil format");
995 assert(att
->Type
== GL_NONE
);
1003 * Test if the given framebuffer object is complete and update its
1004 * Status field with the results.
1005 * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
1006 * driver to make hardware-specific validation/completeness checks.
1007 * Also update the framebuffer's Width and Height fields if the
1008 * framebuffer is complete.
1011 _mesa_test_framebuffer_completeness(struct gl_context
*ctx
,
1012 struct gl_framebuffer
*fb
)
1015 GLenum intFormat
= GL_NONE
; /* color buffers' internal format */
1016 GLuint minWidth
= ~0, minHeight
= ~0, maxWidth
= 0, maxHeight
= 0;
1017 GLint numColorSamples
= -1;
1018 GLint numColorStorageSamples
= -1;
1019 GLint numDepthSamples
= -1;
1020 GLint fixedSampleLocations
= -1;
1023 /* Covers max_layer_count, is_layered, and layer_tex_target */
1024 bool layer_info_valid
= false;
1025 GLuint max_layer_count
= 0, att_layer_count
;
1026 bool is_layered
= false;
1027 GLenum layer_tex_target
= 0;
1028 bool has_depth_attachment
= false;
1029 bool has_stencil_attachment
= false;
1031 assert(_mesa_is_user_fbo(fb
));
1033 /* we're changing framebuffer fields here */
1034 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1039 fb
->_AllColorBuffersFixedPoint
= GL_TRUE
;
1040 fb
->_HasSNormOrFloatColorBuffer
= GL_FALSE
;
1041 fb
->_HasAttachments
= true;
1042 fb
->_IntegerBuffers
= 0;
1043 fb
->_RGBBuffers
= 0;
1044 fb
->_FP32Buffers
= 0;
1046 /* Start at -2 to more easily loop over all attachment points.
1048 * -1: stencil buffer
1051 for (i
= -2; i
< (GLint
) ctx
->Const
.MaxColorAttachments
; i
++) {
1052 struct gl_renderbuffer_attachment
*att
;
1055 mesa_format attFormat
;
1056 GLenum att_tex_target
= GL_NONE
;
1059 * XXX for ARB_fbo, only check color buffers that are named by
1060 * GL_READ_BUFFER and GL_DRAW_BUFFERi.
1063 /* check for attachment completeness
1066 att
= &fb
->Attachment
[BUFFER_DEPTH
];
1067 test_attachment_completeness(ctx
, GL_DEPTH
, att
);
1068 if (!att
->Complete
) {
1069 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1070 fbo_incomplete(ctx
, "depth attachment incomplete", -1);
1072 } else if (att
->Type
!= GL_NONE
) {
1073 has_depth_attachment
= true;
1077 att
= &fb
->Attachment
[BUFFER_STENCIL
];
1078 test_attachment_completeness(ctx
, GL_STENCIL
, att
);
1079 if (!att
->Complete
) {
1080 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1081 fbo_incomplete(ctx
, "stencil attachment incomplete", -1);
1083 } else if (att
->Type
!= GL_NONE
) {
1084 has_stencil_attachment
= true;
1088 att
= &fb
->Attachment
[BUFFER_COLOR0
+ i
];
1089 test_attachment_completeness(ctx
, GL_COLOR
, att
);
1090 if (!att
->Complete
) {
1091 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1092 fbo_incomplete(ctx
, "color attachment incomplete", i
);
1097 /* get width, height, format of the renderbuffer/texture
1099 unsigned attNumSamples
, attNumStorageSamples
;
1101 if (att
->Type
== GL_TEXTURE
) {
1102 const struct gl_texture_image
*texImg
= att
->Renderbuffer
->TexImage
;
1103 att_tex_target
= att
->Texture
->Target
;
1104 minWidth
= MIN2(minWidth
, texImg
->Width
);
1105 maxWidth
= MAX2(maxWidth
, texImg
->Width
);
1106 minHeight
= MIN2(minHeight
, texImg
->Height
);
1107 maxHeight
= MAX2(maxHeight
, texImg
->Height
);
1108 f
= texImg
->_BaseFormat
;
1110 attFormat
= texImg
->TexFormat
;
1113 if (!is_format_color_renderable(ctx
, attFormat
,
1114 texImg
->InternalFormat
) &&
1115 !is_legal_depth_format(ctx
, f
) &&
1116 f
!= GL_STENCIL_INDEX
) {
1117 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT
;
1118 fbo_incomplete(ctx
, "texture attachment incomplete", -1);
1122 if (fixedSampleLocations
< 0)
1123 fixedSampleLocations
= texImg
->FixedSampleLocations
;
1124 else if (fixedSampleLocations
!= texImg
->FixedSampleLocations
) {
1125 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1126 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1130 if (att
->NumSamples
> 0)
1131 attNumSamples
= att
->NumSamples
;
1133 attNumSamples
= texImg
->NumSamples
;
1134 attNumStorageSamples
= attNumSamples
;
1136 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
1137 minWidth
= MIN2(minWidth
, att
->Renderbuffer
->Width
);
1138 maxWidth
= MAX2(minWidth
, att
->Renderbuffer
->Width
);
1139 minHeight
= MIN2(minHeight
, att
->Renderbuffer
->Height
);
1140 maxHeight
= MAX2(minHeight
, att
->Renderbuffer
->Height
);
1141 f
= att
->Renderbuffer
->InternalFormat
;
1142 baseFormat
= att
->Renderbuffer
->_BaseFormat
;
1143 attFormat
= att
->Renderbuffer
->Format
;
1146 /* RENDERBUFFER has fixedSampleLocations implicitly true */
1147 if (fixedSampleLocations
< 0)
1148 fixedSampleLocations
= GL_TRUE
;
1149 else if (fixedSampleLocations
!= GL_TRUE
) {
1150 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1151 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1155 attNumSamples
= att
->Renderbuffer
->NumSamples
;
1156 attNumStorageSamples
= att
->Renderbuffer
->NumStorageSamples
;
1159 assert(att
->Type
== GL_NONE
);
1164 /* Color buffers. */
1165 if (numColorSamples
< 0) {
1166 assert(numColorStorageSamples
< 0);
1167 numColorSamples
= attNumSamples
;
1168 numColorStorageSamples
= attNumStorageSamples
;
1169 } else if (numColorSamples
!= attNumSamples
||
1170 numColorStorageSamples
!= attNumStorageSamples
) {
1171 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1172 fbo_incomplete(ctx
, "inconsistent sample counts", -1);
1176 /* Depth/stencil buffers. */
1177 if (numDepthSamples
< 0) {
1178 numDepthSamples
= attNumSamples
;
1179 } else if (numDepthSamples
!= attNumSamples
) {
1180 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1181 fbo_incomplete(ctx
, "inconsistent sample counts", -1);
1186 /* Update flags describing color buffer datatypes */
1188 GLenum type
= _mesa_get_format_datatype(attFormat
);
1190 /* check if integer color */
1191 if (_mesa_is_format_integer_color(attFormat
))
1192 fb
->_IntegerBuffers
|= (1 << i
);
1194 if (baseFormat
== GL_RGB
)
1195 fb
->_RGBBuffers
|= (1 << i
);
1197 if (type
== GL_FLOAT
&& _mesa_get_format_max_bits(attFormat
) > 16)
1198 fb
->_FP32Buffers
|= (1 << i
);
1200 fb
->_AllColorBuffersFixedPoint
=
1201 fb
->_AllColorBuffersFixedPoint
&&
1202 (type
== GL_UNSIGNED_NORMALIZED
|| type
== GL_SIGNED_NORMALIZED
);
1204 fb
->_HasSNormOrFloatColorBuffer
=
1205 fb
->_HasSNormOrFloatColorBuffer
||
1206 type
== GL_SIGNED_NORMALIZED
|| type
== GL_FLOAT
;
1209 /* Error-check width, height, format */
1210 if (numImages
== 1) {
1217 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
1218 /* check that width, height, format are same */
1219 if (minWidth
!= maxWidth
|| minHeight
!= maxHeight
) {
1220 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
;
1221 fbo_incomplete(ctx
, "width or height mismatch", -1);
1224 /* check that all color buffers are the same format */
1225 if (intFormat
!= GL_NONE
&& f
!= intFormat
) {
1226 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
1227 fbo_incomplete(ctx
, "format mismatch", -1);
1233 /* Check that the format is valid. (MESA_FORMAT_NONE means unsupported)
1235 if (att
->Type
== GL_RENDERBUFFER
&&
1236 att
->Renderbuffer
->Format
== MESA_FORMAT_NONE
) {
1237 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1238 fbo_incomplete(ctx
, "unsupported renderbuffer format", i
);
1242 /* Check that layered rendering is consistent. */
1244 if (att_tex_target
== GL_TEXTURE_CUBE_MAP
)
1245 att_layer_count
= 6;
1246 else if (att_tex_target
== GL_TEXTURE_1D_ARRAY
)
1247 att_layer_count
= att
->Renderbuffer
->Height
;
1249 att_layer_count
= att
->Renderbuffer
->Depth
;
1251 att_layer_count
= 0;
1253 if (!layer_info_valid
) {
1254 is_layered
= att
->Layered
;
1255 max_layer_count
= att_layer_count
;
1256 layer_tex_target
= att_tex_target
;
1257 layer_info_valid
= true;
1258 } else if (max_layer_count
> 0 && layer_tex_target
!= att_tex_target
) {
1259 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1260 fbo_incomplete(ctx
, "layered framebuffer has mismatched targets", i
);
1262 } else if (is_layered
!= att
->Layered
) {
1263 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1265 "framebuffer attachment layer mode is inconsistent",
1268 } else if (att_layer_count
> max_layer_count
) {
1269 max_layer_count
= att_layer_count
;
1273 * The extension GL_ARB_framebuffer_no_attachments places additional
1274 * requirement on each attachment. Those additional requirements are
1275 * tighter that those of previous versions of GL. In interest of better
1276 * compatibility, we will not enforce these restrictions. For the record
1277 * those additional restrictions are quoted below:
1279 * "The width and height of image are greater than zero and less than or
1280 * equal to the values of the implementation-dependent limits
1281 * MAX_FRAMEBUFFER_WIDTH and MAX_FRAMEBUFFER_HEIGHT, respectively."
1283 * "If <image> is a three-dimensional texture or a one- or two-dimensional
1284 * array texture and the attachment is layered, the depth or layer count
1285 * of the texture is less than or equal to the implementation-dependent
1286 * limit MAX_FRAMEBUFFER_LAYERS."
1288 * "If image has multiple samples, its sample count is less than or equal
1289 * to the value of the implementation-dependent limit
1290 * MAX_FRAMEBUFFER_SAMPLES."
1292 * The same requirements are also in place for GL 4.5,
1293 * Section 9.4.1 "Framebuffer Attachment Completeness", pg 310-311
1297 if (ctx
->Extensions
.AMD_framebuffer_multisample_advanced
) {
1298 /* See if non-matching sample counts are supported. */
1299 if (numColorSamples
>= 0 && numDepthSamples
>= 0) {
1302 assert(numColorStorageSamples
!= -1);
1304 numColorSamples
= MAX2(numColorSamples
, 1);
1305 numColorStorageSamples
= MAX2(numColorStorageSamples
, 1);
1306 numDepthSamples
= MAX2(numDepthSamples
, 1);
1308 if (numColorSamples
== 1 && numColorStorageSamples
== 1 &&
1309 numDepthSamples
== 1) {
1312 for (i
= 0; i
< ctx
->Const
.NumSupportedMultisampleModes
; i
++) {
1314 &ctx
->Const
.SupportedMultisampleModes
[i
].NumColorSamples
;
1316 if (counts
[0] == numColorSamples
&&
1317 counts
[1] == numColorStorageSamples
&&
1318 counts
[2] == numDepthSamples
) {
1326 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1327 fbo_incomplete(ctx
, "unsupported sample counts", -1);
1332 /* If the extension is unsupported, all sample counts must be equal. */
1333 if (numColorSamples
>= 0 &&
1334 (numColorSamples
!= numColorStorageSamples
||
1335 (numDepthSamples
>= 0 && numColorSamples
!= numDepthSamples
))) {
1336 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1337 fbo_incomplete(ctx
, "inconsistent sample counts", -1);
1342 fb
->MaxNumLayers
= max_layer_count
;
1344 if (numImages
== 0) {
1345 fb
->_HasAttachments
= false;
1347 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
1348 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1349 fbo_incomplete(ctx
, "no attachments", -1);
1353 if (fb
->DefaultGeometry
.Width
== 0 || fb
->DefaultGeometry
.Height
== 0) {
1354 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1355 fbo_incomplete(ctx
, "no attachments and default width or height is 0", -1);
1360 if (_mesa_is_desktop_gl(ctx
) && !ctx
->Extensions
.ARB_ES2_compatibility
) {
1361 /* Check that all DrawBuffers are present */
1362 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
1363 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
1364 const struct gl_renderbuffer_attachment
*att
1365 = get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
], NULL
);
1367 if (att
->Type
== GL_NONE
) {
1368 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
1369 fbo_incomplete(ctx
, "missing drawbuffer", j
);
1375 /* Check that the ReadBuffer is present */
1376 if (fb
->ColorReadBuffer
!= GL_NONE
) {
1377 const struct gl_renderbuffer_attachment
*att
1378 = get_attachment(ctx
, fb
, fb
->ColorReadBuffer
, NULL
);
1380 if (att
->Type
== GL_NONE
) {
1381 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
1382 fbo_incomplete(ctx
, "missing readbuffer", -1);
1388 /* The OpenGL ES3 spec, in chapter 9.4. FRAMEBUFFER COMPLETENESS, says:
1390 * "Depth and stencil attachments, if present, are the same image."
1392 * This restriction is not present in the OpenGL ES2 spec.
1394 if (_mesa_is_gles3(ctx
) &&
1395 has_stencil_attachment
&& has_depth_attachment
&&
1396 !_mesa_has_depthstencil_combined(fb
)) {
1397 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1398 fbo_incomplete(ctx
, "Depth and stencil attachments must be the same image", -1);
1402 /* Provisionally set status = COMPLETE ... */
1403 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
1405 /* ... but the driver may say the FB is incomplete.
1406 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
1409 if (ctx
->Driver
.ValidateFramebuffer
) {
1410 ctx
->Driver
.ValidateFramebuffer(ctx
, fb
);
1411 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1412 fbo_incomplete(ctx
, "driver marked FBO as incomplete", -1);
1418 * Note that if ARB_framebuffer_object is supported and the attached
1419 * renderbuffers/textures are different sizes, the framebuffer
1420 * width/height will be set to the smallest width/height.
1422 if (numImages
!= 0) {
1423 fb
->Width
= minWidth
;
1424 fb
->Height
= minHeight
;
1427 /* finally, update the visual info for the framebuffer */
1428 _mesa_update_framebuffer_visual(ctx
, fb
);
1432 GLboolean GLAPIENTRY
1433 _mesa_IsRenderbuffer(GLuint renderbuffer
)
1435 struct gl_renderbuffer
*rb
;
1437 GET_CURRENT_CONTEXT(ctx
);
1439 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1441 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1442 return rb
!= NULL
&& rb
!= &DummyRenderbuffer
;
1446 static struct gl_renderbuffer
*
1447 allocate_renderbuffer_locked(struct gl_context
*ctx
, GLuint renderbuffer
,
1450 struct gl_renderbuffer
*newRb
;
1452 /* create new renderbuffer object */
1453 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
1455 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
1458 assert(newRb
->AllocStorage
);
1459 _mesa_HashInsertLocked(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
1466 bind_renderbuffer(GLenum target
, GLuint renderbuffer
)
1468 struct gl_renderbuffer
*newRb
;
1469 GET_CURRENT_CONTEXT(ctx
);
1471 if (target
!= GL_RENDERBUFFER_EXT
) {
1472 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindRenderbufferEXT(target)");
1476 /* No need to flush here since the render buffer binding has no
1477 * effect on rendering state.
1481 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1482 if (newRb
== &DummyRenderbuffer
) {
1483 /* ID was reserved, but no real renderbuffer object made yet */
1486 else if (!newRb
&& ctx
->API
== API_OPENGL_CORE
) {
1487 /* All RB IDs must be Gen'd */
1488 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1489 "glBindRenderbuffer(non-gen name)");
1494 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
1495 newRb
= allocate_renderbuffer_locked(ctx
, renderbuffer
,
1496 "glBindRenderbufferEXT");
1497 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
1504 assert(newRb
!= &DummyRenderbuffer
);
1506 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
1510 _mesa_BindRenderbuffer(GLenum target
, GLuint renderbuffer
)
1512 /* OpenGL ES glBindRenderbuffer and glBindRenderbufferOES use this same
1513 * entry point, but they allow the use of user-generated names.
1515 bind_renderbuffer(target
, renderbuffer
);
1519 _mesa_BindRenderbufferEXT(GLenum target
, GLuint renderbuffer
)
1521 bind_renderbuffer(target
, renderbuffer
);
1525 * ARB_framebuffer_no_attachment and ARB_sample_locations - Application passes
1526 * requested param's here. NOTE: NumSamples requested need not be _NumSamples
1527 * which is what the hw supports.
1530 framebuffer_parameteri(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1531 GLenum pname
, GLint param
, const char *func
)
1533 bool cannot_be_winsys_fbo
= false;
1536 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1537 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1538 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1539 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1540 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1541 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
)
1542 goto invalid_pname_enum
;
1543 cannot_be_winsys_fbo
= true;
1545 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1546 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1547 if (!ctx
->Extensions
.ARB_sample_locations
)
1548 goto invalid_pname_enum
;
1550 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1551 if (!ctx
->Extensions
.MESA_framebuffer_flip_y
)
1552 goto invalid_pname_enum
;
1553 cannot_be_winsys_fbo
= true;
1556 goto invalid_pname_enum
;
1559 if (cannot_be_winsys_fbo
&& _mesa_is_winsys_fbo(fb
)) {
1560 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1561 "%s(invalid pname=0x%x for default framebuffer)", func
, pname
);
1566 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1567 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferWidth
)
1568 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1570 fb
->DefaultGeometry
.Width
= param
;
1572 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1573 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferHeight
)
1574 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1576 fb
->DefaultGeometry
.Height
= param
;
1578 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1580 * According to the OpenGL ES 3.1 specification section 9.2.1, the
1581 * GL_FRAMEBUFFER_DEFAULT_LAYERS parameter name is not supported.
1583 if (_mesa_is_gles31(ctx
) && !ctx
->Extensions
.OES_geometry_shader
) {
1584 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1587 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferLayers
)
1588 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1590 fb
->DefaultGeometry
.Layers
= param
;
1592 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1593 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferSamples
)
1594 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1596 fb
->DefaultGeometry
.NumSamples
= param
;
1598 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1599 fb
->DefaultGeometry
.FixedSampleLocations
= param
;
1601 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1602 fb
->ProgrammableSampleLocations
= !!param
;
1604 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1605 fb
->SampleLocationPixelGrid
= !!param
;
1607 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1613 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1614 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1615 if (fb
== ctx
->DrawBuffer
)
1616 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleLocations
;
1619 invalidate_framebuffer(fb
);
1620 ctx
->NewState
|= _NEW_BUFFERS
;
1627 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1631 validate_framebuffer_parameter_extensions(GLenum pname
, const char *func
)
1633 GET_CURRENT_CONTEXT(ctx
);
1635 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
1636 !ctx
->Extensions
.ARB_sample_locations
&&
1637 !ctx
->Extensions
.MESA_framebuffer_flip_y
) {
1638 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1640 "(none of ARB_framebuffer_no_attachments,"
1641 " ARB_sample_locations, or"
1642 " MESA_framebuffer_flip_y extensions are available)",
1648 * If only the MESA_framebuffer_flip_y extension is enabled
1649 * pname can only be GL_FRAMEBUFFER_FLIP_Y_MESA
1651 if (ctx
->Extensions
.MESA_framebuffer_flip_y
&&
1652 pname
!= GL_FRAMEBUFFER_FLIP_Y_MESA
&&
1653 !(ctx
->Extensions
.ARB_framebuffer_no_attachments
||
1654 ctx
->Extensions
.ARB_sample_locations
)) {
1655 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1663 _mesa_FramebufferParameteri(GLenum target
, GLenum pname
, GLint param
)
1665 GET_CURRENT_CONTEXT(ctx
);
1666 struct gl_framebuffer
*fb
;
1668 if (!validate_framebuffer_parameter_extensions(pname
,
1669 "glFramebufferParameteri")) {
1673 fb
= get_framebuffer_target(ctx
, target
);
1675 _mesa_error(ctx
, GL_INVALID_ENUM
,
1676 "glFramebufferParameteri(target=0x%x)", target
);
1680 framebuffer_parameteri(ctx
, fb
, pname
, param
, "glFramebufferParameteri");
1684 _mesa_FramebufferParameteriMESA(GLenum target
, GLenum pname
, GLint param
)
1686 _mesa_FramebufferParameteri(target
, pname
, param
);
1690 validate_get_framebuffer_parameteriv_pname(struct gl_context
*ctx
,
1691 struct gl_framebuffer
*fb
,
1692 GLuint pname
, const char *func
)
1694 bool cannot_be_winsys_fbo
= true;
1697 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1699 * According to the OpenGL ES 3.1 specification section 9.2.3, the
1700 * GL_FRAMEBUFFER_LAYERS parameter name is not supported.
1702 if (_mesa_is_gles31(ctx
) && !ctx
->Extensions
.OES_geometry_shader
) {
1703 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1707 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1708 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1709 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1710 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1712 case GL_DOUBLEBUFFER
:
1713 case GL_IMPLEMENTATION_COLOR_READ_FORMAT
:
1714 case GL_IMPLEMENTATION_COLOR_READ_TYPE
:
1716 case GL_SAMPLE_BUFFERS
:
1718 /* From OpenGL 4.5 spec, section 9.2.3 "Framebuffer Object Queries:
1720 * "An INVALID_OPERATION error is generated by GetFramebufferParameteriv
1721 * if the default framebuffer is bound to target and pname is not one
1722 * of the accepted values from table 23.73, other than
1725 * For OpenGL ES, using default framebuffer raises INVALID_OPERATION
1728 cannot_be_winsys_fbo
= !_mesa_is_desktop_gl(ctx
);
1730 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1731 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1732 if (!ctx
->Extensions
.ARB_sample_locations
)
1733 goto invalid_pname_enum
;
1734 cannot_be_winsys_fbo
= false;
1736 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1737 if (!ctx
->Extensions
.MESA_framebuffer_flip_y
) {
1738 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1743 goto invalid_pname_enum
;
1746 if (cannot_be_winsys_fbo
&& _mesa_is_winsys_fbo(fb
)) {
1747 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1748 "%s(invalid pname=0x%x for default framebuffer)", func
, pname
);
1755 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1760 get_framebuffer_parameteriv(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1761 GLenum pname
, GLint
*params
, const char *func
)
1763 if (!validate_get_framebuffer_parameteriv_pname(ctx
, fb
, pname
, func
))
1767 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1768 *params
= fb
->DefaultGeometry
.Width
;
1770 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1771 *params
= fb
->DefaultGeometry
.Height
;
1773 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1774 *params
= fb
->DefaultGeometry
.Layers
;
1776 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1777 *params
= fb
->DefaultGeometry
.NumSamples
;
1779 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1780 *params
= fb
->DefaultGeometry
.FixedSampleLocations
;
1782 case GL_DOUBLEBUFFER
:
1783 *params
= fb
->Visual
.doubleBufferMode
;
1785 case GL_IMPLEMENTATION_COLOR_READ_FORMAT
:
1786 *params
= _mesa_get_color_read_format(ctx
, fb
, func
);
1788 case GL_IMPLEMENTATION_COLOR_READ_TYPE
:
1789 *params
= _mesa_get_color_read_type(ctx
, fb
, func
);
1792 *params
= _mesa_geometric_samples(fb
);
1794 case GL_SAMPLE_BUFFERS
:
1795 *params
= _mesa_geometric_samples(fb
) > 0;
1798 *params
= fb
->Visual
.stereoMode
;
1800 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1801 *params
= fb
->ProgrammableSampleLocations
;
1803 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1804 *params
= fb
->SampleLocationPixelGrid
;
1806 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1807 *params
= fb
->FlipY
;
1813 _mesa_GetFramebufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
1815 GET_CURRENT_CONTEXT(ctx
);
1816 struct gl_framebuffer
*fb
;
1818 if (!validate_framebuffer_parameter_extensions(pname
,
1819 "glGetFramebufferParameteriv")) {
1823 fb
= get_framebuffer_target(ctx
, target
);
1825 _mesa_error(ctx
, GL_INVALID_ENUM
,
1826 "glGetFramebufferParameteriv(target=0x%x)", target
);
1830 get_framebuffer_parameteriv(ctx
, fb
, pname
, params
,
1831 "glGetFramebufferParameteriv");
1835 _mesa_GetFramebufferParameterivMESA(GLenum target
, GLenum pname
, GLint
*params
)
1837 _mesa_GetFramebufferParameteriv(target
, pname
, params
);
1841 * Remove the specified renderbuffer or texture from any attachment point in
1845 * \c true if the renderbuffer was detached from an attachment point. \c
1849 _mesa_detach_renderbuffer(struct gl_context
*ctx
,
1850 struct gl_framebuffer
*fb
,
1854 bool progress
= false;
1856 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1857 if (fb
->Attachment
[i
].Texture
== att
1858 || fb
->Attachment
[i
].Renderbuffer
== att
) {
1859 remove_attachment(ctx
, &fb
->Attachment
[i
]);
1864 /* Section 4.4.4 (Framebuffer Completeness), subsection "Whole Framebuffer
1865 * Completeness," of the OpenGL 3.1 spec says:
1867 * "Performing any of the following actions may change whether the
1868 * framebuffer is considered complete or incomplete:
1872 * - Deleting, with DeleteTextures or DeleteRenderbuffers, an object
1873 * containing an image that is attached to a framebuffer object
1874 * that is bound to the framebuffer."
1877 invalidate_framebuffer(fb
);
1884 _mesa_DeleteRenderbuffers(GLsizei n
, const GLuint
*renderbuffers
)
1887 GET_CURRENT_CONTEXT(ctx
);
1890 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteRenderbuffers(n < 0)");
1894 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1896 for (i
= 0; i
< n
; i
++) {
1897 if (renderbuffers
[i
] > 0) {
1898 struct gl_renderbuffer
*rb
;
1899 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
1901 /* check if deleting currently bound renderbuffer object */
1902 if (rb
== ctx
->CurrentRenderbuffer
) {
1904 assert(rb
->RefCount
>= 2);
1905 _mesa_BindRenderbuffer(GL_RENDERBUFFER_EXT
, 0);
1908 /* Section 4.4.2 (Attaching Images to Framebuffer Objects),
1909 * subsection "Attaching Renderbuffer Images to a Framebuffer,"
1910 * of the OpenGL 3.1 spec says:
1912 * "If a renderbuffer object is deleted while its image is
1913 * attached to one or more attachment points in the currently
1914 * bound framebuffer, then it is as if FramebufferRenderbuffer
1915 * had been called, with a renderbuffer of 0, for each
1916 * attachment point to which this image was attached in the
1917 * currently bound framebuffer. In other words, this
1918 * renderbuffer image is first detached from all attachment
1919 * points in the currently bound framebuffer. Note that the
1920 * renderbuffer image is specifically not detached from any
1921 * non-bound framebuffers. Detaching the image from any
1922 * non-bound framebuffers is the responsibility of the
1925 if (_mesa_is_user_fbo(ctx
->DrawBuffer
)) {
1926 _mesa_detach_renderbuffer(ctx
, ctx
->DrawBuffer
, rb
);
1928 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)
1929 && ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
1930 _mesa_detach_renderbuffer(ctx
, ctx
->ReadBuffer
, rb
);
1933 /* Remove from hash table immediately, to free the ID.
1934 * But the object will not be freed until it's no longer
1935 * referenced anywhere else.
1937 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
1939 if (rb
!= &DummyRenderbuffer
) {
1940 /* no longer referenced by hash table */
1941 _mesa_reference_renderbuffer(&rb
, NULL
);
1949 create_render_buffers(struct gl_context
*ctx
, GLsizei n
, GLuint
*renderbuffers
,
1952 const char *func
= dsa
? "glCreateRenderbuffers" : "glGenRenderbuffers";
1959 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
1961 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
1963 for (i
= 0; i
< n
; i
++) {
1964 GLuint name
= first
+ i
;
1965 renderbuffers
[i
] = name
;
1968 allocate_renderbuffer_locked(ctx
, name
, func
);
1970 /* insert a dummy renderbuffer into the hash table */
1971 _mesa_HashInsertLocked(ctx
->Shared
->RenderBuffers
, name
,
1972 &DummyRenderbuffer
);
1976 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
1981 create_render_buffers_err(struct gl_context
*ctx
, GLsizei n
,
1982 GLuint
*renderbuffers
, bool dsa
)
1984 const char *func
= dsa
? "glCreateRenderbuffers" : "glGenRenderbuffers";
1987 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n<0)", func
);
1991 create_render_buffers(ctx
, n
, renderbuffers
, dsa
);
1996 _mesa_GenRenderbuffers_no_error(GLsizei n
, GLuint
*renderbuffers
)
1998 GET_CURRENT_CONTEXT(ctx
);
1999 create_render_buffers(ctx
, n
, renderbuffers
, false);
2004 _mesa_GenRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
2006 GET_CURRENT_CONTEXT(ctx
);
2007 create_render_buffers_err(ctx
, n
, renderbuffers
, false);
2012 _mesa_CreateRenderbuffers_no_error(GLsizei n
, GLuint
*renderbuffers
)
2014 GET_CURRENT_CONTEXT(ctx
);
2015 create_render_buffers(ctx
, n
, renderbuffers
, true);
2020 _mesa_CreateRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
2022 GET_CURRENT_CONTEXT(ctx
);
2023 create_render_buffers_err(ctx
, n
, renderbuffers
, true);
2028 * Given an internal format token for a render buffer, return the
2029 * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
2030 * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,
2031 * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).
2033 * This is similar to _mesa_base_tex_format() but the set of valid
2034 * internal formats is different.
2036 * Note that even if a format is determined to be legal here, validation
2037 * of the FBO may fail if the format is not supported by the driver/GPU.
2039 * \param internalFormat as passed to glRenderbufferStorage()
2040 * \return the base internal format, or 0 if internalFormat is illegal
2043 _mesa_base_fbo_format(const struct gl_context
*ctx
, GLenum internalFormat
)
2046 * Notes: some formats such as alpha, luminance, etc. were added
2047 * with GL_ARB_framebuffer_object.
2049 switch (internalFormat
) {
2055 return (ctx
->API
== API_OPENGL_COMPAT
&&
2056 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_ALPHA
: 0;
2060 case GL_LUMINANCE12
:
2061 case GL_LUMINANCE16
:
2062 return (ctx
->API
== API_OPENGL_COMPAT
&&
2063 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE
: 0;
2064 case GL_LUMINANCE_ALPHA
:
2065 case GL_LUMINANCE4_ALPHA4
:
2066 case GL_LUMINANCE6_ALPHA2
:
2067 case GL_LUMINANCE8_ALPHA8
:
2068 case GL_LUMINANCE12_ALPHA4
:
2069 case GL_LUMINANCE12_ALPHA12
:
2070 case GL_LUMINANCE16_ALPHA16
:
2071 return (ctx
->API
== API_OPENGL_COMPAT
&&
2072 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE_ALPHA
: 0;
2076 case GL_INTENSITY12
:
2077 case GL_INTENSITY16
:
2078 return (ctx
->API
== API_OPENGL_COMPAT
&&
2079 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_INTENSITY
: 0;
2089 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
2091 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
2099 return _mesa_is_desktop_gl(ctx
) ? GL_RGBA
: 0;
2101 return _mesa_is_desktop_gl(ctx
) || _mesa_has_EXT_texture_norm16(ctx
)
2104 case GL_SRGB8_ALPHA8_EXT
:
2105 return _mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
2106 case GL_STENCIL_INDEX
:
2107 case GL_STENCIL_INDEX1_EXT
:
2108 case GL_STENCIL_INDEX4_EXT
:
2109 case GL_STENCIL_INDEX16_EXT
:
2110 /* There are extensions for GL_STENCIL_INDEX1 and GL_STENCIL_INDEX4 in
2111 * OpenGL ES, but Mesa does not currently support them.
2113 return _mesa_is_desktop_gl(ctx
) ? GL_STENCIL_INDEX
: 0;
2114 case GL_STENCIL_INDEX8_EXT
:
2115 return GL_STENCIL_INDEX
;
2116 case GL_DEPTH_COMPONENT
:
2117 case GL_DEPTH_COMPONENT32
:
2118 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_COMPONENT
: 0;
2119 case GL_DEPTH_COMPONENT16
:
2120 case GL_DEPTH_COMPONENT24
:
2121 return GL_DEPTH_COMPONENT
;
2122 case GL_DEPTH_STENCIL
:
2123 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_STENCIL
: 0;
2124 case GL_DEPTH24_STENCIL8
:
2125 return GL_DEPTH_STENCIL
;
2126 case GL_DEPTH_COMPONENT32F
:
2127 return ctx
->Version
>= 30
2128 || (ctx
->API
== API_OPENGL_COMPAT
&&
2129 ctx
->Extensions
.ARB_depth_buffer_float
)
2130 ? GL_DEPTH_COMPONENT
: 0;
2131 case GL_DEPTH32F_STENCIL8
:
2132 return ctx
->Version
>= 30
2133 || (ctx
->API
== API_OPENGL_COMPAT
&&
2134 ctx
->Extensions
.ARB_depth_buffer_float
)
2135 ? GL_DEPTH_STENCIL
: 0;
2137 return _mesa_has_ARB_texture_rg(ctx
) ? GL_RED
: 0;
2139 return _mesa_has_ARB_texture_rg(ctx
) || _mesa_has_EXT_texture_norm16(ctx
)
2142 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
2145 return _mesa_has_ARB_texture_rg(ctx
) ? GL_RG
: 0;
2147 return _mesa_has_ARB_texture_rg(ctx
) || _mesa_has_EXT_texture_norm16(ctx
)
2150 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
2152 /* signed normalized texture formats */
2154 return _mesa_has_EXT_texture_snorm(ctx
) || _mesa_has_EXT_render_snorm(ctx
)
2157 return _mesa_has_EXT_texture_snorm(ctx
) ? GL_RED
: 0;
2159 return _mesa_has_EXT_texture_snorm(ctx
) ||
2160 (_mesa_has_EXT_render_snorm(ctx
) &&
2161 _mesa_has_EXT_texture_norm16(ctx
))
2164 return _mesa_has_EXT_texture_snorm(ctx
) || _mesa_has_EXT_render_snorm(ctx
)
2167 return _mesa_has_EXT_texture_snorm(ctx
) ? GL_RG
: 0;
2169 return _mesa_has_EXT_texture_snorm(ctx
) ||
2170 (_mesa_has_EXT_render_snorm(ctx
) &&
2171 _mesa_has_EXT_texture_norm16(ctx
))
2175 case GL_RGB16_SNORM
:
2176 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2178 case GL_RGBA8_SNORM
:
2179 return _mesa_has_EXT_texture_snorm(ctx
) || _mesa_has_EXT_render_snorm(ctx
)
2182 return _mesa_has_EXT_texture_snorm(ctx
) ? GL_RGBA
: 0;
2183 case GL_RGBA16_SNORM
:
2184 return _mesa_has_EXT_texture_snorm(ctx
) ||
2185 (_mesa_has_EXT_render_snorm(ctx
) &&
2186 _mesa_has_EXT_texture_norm16(ctx
))
2188 case GL_ALPHA_SNORM
:
2189 case GL_ALPHA8_SNORM
:
2190 case GL_ALPHA16_SNORM
:
2191 return ctx
->API
== API_OPENGL_COMPAT
&&
2192 ctx
->Extensions
.EXT_texture_snorm
&&
2193 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
2194 case GL_LUMINANCE_SNORM
:
2195 case GL_LUMINANCE8_SNORM
:
2196 case GL_LUMINANCE16_SNORM
:
2197 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2199 case GL_LUMINANCE_ALPHA_SNORM
:
2200 case GL_LUMINANCE8_ALPHA8_SNORM
:
2201 case GL_LUMINANCE16_ALPHA16_SNORM
:
2202 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2203 ? GL_LUMINANCE_ALPHA
: 0;
2204 case GL_INTENSITY_SNORM
:
2205 case GL_INTENSITY8_SNORM
:
2206 case GL_INTENSITY16_SNORM
:
2207 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2212 return ((_mesa_is_desktop_gl(ctx
) &&
2213 ctx
->Extensions
.ARB_texture_rg
&&
2214 ctx
->Extensions
.ARB_texture_float
) ||
2215 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2219 return ((_mesa_is_desktop_gl(ctx
) &&
2220 ctx
->Extensions
.ARB_texture_rg
&&
2221 ctx
->Extensions
.ARB_texture_float
) ||
2222 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2226 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_float
)
2230 return ((_mesa_is_desktop_gl(ctx
) &&
2231 ctx
->Extensions
.ARB_texture_float
) ||
2232 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2235 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_shared_exponent
)
2237 case GL_ALPHA16F_ARB
:
2238 case GL_ALPHA32F_ARB
:
2239 return ctx
->API
== API_OPENGL_COMPAT
&&
2240 ctx
->Extensions
.ARB_texture_float
&&
2241 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
2242 case GL_LUMINANCE16F_ARB
:
2243 case GL_LUMINANCE32F_ARB
:
2244 return ctx
->API
== API_OPENGL_COMPAT
&&
2245 ctx
->Extensions
.ARB_texture_float
&&
2246 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
2247 case GL_LUMINANCE_ALPHA16F_ARB
:
2248 case GL_LUMINANCE_ALPHA32F_ARB
:
2249 return ctx
->API
== API_OPENGL_COMPAT
&&
2250 ctx
->Extensions
.ARB_texture_float
&&
2251 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
2252 case GL_INTENSITY16F_ARB
:
2253 case GL_INTENSITY32F_ARB
:
2254 return ctx
->API
== API_OPENGL_COMPAT
&&
2255 ctx
->Extensions
.ARB_texture_float
&&
2256 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
2257 case GL_R11F_G11F_B10F
:
2258 return ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_packed_float
) ||
2259 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2262 case GL_RGBA8UI_EXT
:
2263 case GL_RGBA16UI_EXT
:
2264 case GL_RGBA32UI_EXT
:
2266 case GL_RGBA16I_EXT
:
2267 case GL_RGBA32I_EXT
:
2268 return ctx
->Version
>= 30
2269 || (_mesa_is_desktop_gl(ctx
) &&
2270 ctx
->Extensions
.EXT_texture_integer
) ? GL_RGBA
: 0;
2273 case GL_RGB16UI_EXT
:
2274 case GL_RGB32UI_EXT
:
2278 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_integer
2286 return ctx
->Version
>= 30
2287 || (_mesa_is_desktop_gl(ctx
) &&
2288 ctx
->Extensions
.ARB_texture_rg
&&
2289 ctx
->Extensions
.EXT_texture_integer
) ? GL_RED
: 0;
2297 return ctx
->Version
>= 30
2298 || (_mesa_is_desktop_gl(ctx
) &&
2299 ctx
->Extensions
.ARB_texture_rg
&&
2300 ctx
->Extensions
.EXT_texture_integer
) ? GL_RG
: 0;
2302 case GL_INTENSITY8I_EXT
:
2303 case GL_INTENSITY8UI_EXT
:
2304 case GL_INTENSITY16I_EXT
:
2305 case GL_INTENSITY16UI_EXT
:
2306 case GL_INTENSITY32I_EXT
:
2307 case GL_INTENSITY32UI_EXT
:
2308 return ctx
->API
== API_OPENGL_COMPAT
&&
2309 ctx
->Extensions
.EXT_texture_integer
&&
2310 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
2312 case GL_LUMINANCE8I_EXT
:
2313 case GL_LUMINANCE8UI_EXT
:
2314 case GL_LUMINANCE16I_EXT
:
2315 case GL_LUMINANCE16UI_EXT
:
2316 case GL_LUMINANCE32I_EXT
:
2317 case GL_LUMINANCE32UI_EXT
:
2318 return ctx
->API
== API_OPENGL_COMPAT
&&
2319 ctx
->Extensions
.EXT_texture_integer
&&
2320 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
2322 case GL_LUMINANCE_ALPHA8I_EXT
:
2323 case GL_LUMINANCE_ALPHA8UI_EXT
:
2324 case GL_LUMINANCE_ALPHA16I_EXT
:
2325 case GL_LUMINANCE_ALPHA16UI_EXT
:
2326 case GL_LUMINANCE_ALPHA32I_EXT
:
2327 case GL_LUMINANCE_ALPHA32UI_EXT
:
2328 return ctx
->API
== API_OPENGL_COMPAT
&&
2329 ctx
->Extensions
.EXT_texture_integer
&&
2330 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
2332 case GL_ALPHA8I_EXT
:
2333 case GL_ALPHA8UI_EXT
:
2334 case GL_ALPHA16I_EXT
:
2335 case GL_ALPHA16UI_EXT
:
2336 case GL_ALPHA32I_EXT
:
2337 case GL_ALPHA32UI_EXT
:
2338 return ctx
->API
== API_OPENGL_COMPAT
&&
2339 ctx
->Extensions
.EXT_texture_integer
&&
2340 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
2343 return (_mesa_is_desktop_gl(ctx
) &&
2344 ctx
->Extensions
.ARB_texture_rgb10_a2ui
)
2345 || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
2348 return _mesa_is_gles(ctx
) || ctx
->Extensions
.ARB_ES2_compatibility
2357 * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk().
2360 invalidate_rb(GLuint key
, void *data
, void *userData
)
2362 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2363 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) userData
;
2365 /* If this is a user-created FBO */
2366 if (_mesa_is_user_fbo(fb
)) {
2368 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2369 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2370 if (att
->Type
== GL_RENDERBUFFER
&&
2371 att
->Renderbuffer
== rb
) {
2372 /* Mark fb status as indeterminate to force re-validation */
2381 /** sentinal value, see below */
2382 #define NO_SAMPLES 1000
2385 _mesa_renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2386 GLenum internalFormat
, GLsizei width
,
2387 GLsizei height
, GLsizei samples
,
2388 GLsizei storageSamples
)
2390 const GLenum baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
2392 assert(baseFormat
!= 0);
2393 assert(width
>= 0 && width
<= (GLsizei
) ctx
->Const
.MaxRenderbufferSize
);
2394 assert(height
>= 0 && height
<= (GLsizei
) ctx
->Const
.MaxRenderbufferSize
);
2395 assert(samples
!= NO_SAMPLES
);
2397 assert(samples
> 0);
2398 assert(_mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
2399 internalFormat
, samples
,
2400 storageSamples
) == GL_NO_ERROR
);
2403 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2405 if (rb
->InternalFormat
== internalFormat
&&
2406 rb
->Width
== (GLuint
) width
&&
2407 rb
->Height
== (GLuint
) height
&&
2408 rb
->NumSamples
== samples
&&
2409 rb
->NumStorageSamples
== storageSamples
) {
2410 /* no change in allocation needed */
2414 /* These MUST get set by the AllocStorage func */
2415 rb
->Format
= MESA_FORMAT_NONE
;
2416 rb
->NumSamples
= samples
;
2417 rb
->NumStorageSamples
= storageSamples
;
2419 /* Now allocate the storage */
2420 assert(rb
->AllocStorage
);
2421 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
2422 /* No error - check/set fields now */
2423 /* If rb->Format == MESA_FORMAT_NONE, the format is unsupported. */
2424 assert(rb
->Width
== (GLuint
) width
);
2425 assert(rb
->Height
== (GLuint
) height
);
2426 rb
->InternalFormat
= internalFormat
;
2427 rb
->_BaseFormat
= baseFormat
;
2428 assert(rb
->_BaseFormat
!= 0);
2431 /* Probably ran out of memory - clear the fields */
2434 rb
->Format
= MESA_FORMAT_NONE
;
2435 rb
->InternalFormat
= GL_NONE
;
2436 rb
->_BaseFormat
= GL_NONE
;
2438 rb
->NumStorageSamples
= 0;
2441 /* Invalidate the framebuffers the renderbuffer is attached in. */
2442 if (rb
->AttachedAnytime
) {
2443 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, invalidate_rb
, rb
);
2448 * Helper function used by renderbuffer_storage_direct() and
2449 * renderbuffer_storage_target().
2450 * samples will be NO_SAMPLES if called by a non-multisample function.
2453 renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2454 GLenum internalFormat
, GLsizei width
,
2455 GLsizei height
, GLsizei samples
, GLsizei storageSamples
,
2459 GLenum sample_count_error
;
2461 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
2462 if (baseFormat
== 0) {
2463 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalFormat=%s)",
2464 func
, _mesa_enum_to_string(internalFormat
));
2468 if (width
< 0 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2469 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid width %d)", func
,
2474 if (height
< 0 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2475 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid height %d)", func
,
2480 if (samples
== NO_SAMPLES
) {
2481 /* NumSamples == 0 indicates non-multisampling */
2486 /* check the sample count;
2487 * note: driver may choose to use more samples than what's requested
2489 sample_count_error
= _mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
2490 internalFormat
, samples
, storageSamples
);
2492 /* Section 2.5 (GL Errors) of OpenGL 3.0 specification, page 16:
2494 * "If a negative number is provided where an argument of type sizei or
2495 * sizeiptr is specified, the error INVALID VALUE is generated."
2497 if (samples
< 0 || storageSamples
< 0) {
2498 sample_count_error
= GL_INVALID_VALUE
;
2501 if (sample_count_error
!= GL_NO_ERROR
) {
2502 _mesa_error(ctx
, sample_count_error
,
2503 "%s(samples=%d, storageSamples=%d)", func
, samples
,
2509 _mesa_renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
,
2514 * Helper function used by _mesa_NamedRenderbufferStorage*().
2515 * samples will be NO_SAMPLES if called by a non-multisample function.
2518 renderbuffer_storage_named(GLuint renderbuffer
, GLenum internalFormat
,
2519 GLsizei width
, GLsizei height
, GLsizei samples
,
2520 GLsizei storageSamples
, const char *func
)
2522 GET_CURRENT_CONTEXT(ctx
);
2524 if (MESA_VERBOSE
& VERBOSE_API
) {
2525 if (samples
== NO_SAMPLES
)
2526 _mesa_debug(ctx
, "%s(%u, %s, %d, %d)\n",
2528 _mesa_enum_to_string(internalFormat
),
2531 _mesa_debug(ctx
, "%s(%u, %s, %d, %d, %d)\n",
2533 _mesa_enum_to_string(internalFormat
),
2534 width
, height
, samples
);
2537 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2538 if (!rb
|| rb
== &DummyRenderbuffer
) {
2539 /* ID was reserved, but no real renderbuffer object made yet */
2540 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid renderbuffer %u)",
2541 func
, renderbuffer
);
2545 renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
,
2546 storageSamples
, func
);
2550 * Helper function used by _mesa_RenderbufferStorage() and
2551 * _mesa_RenderbufferStorageMultisample().
2552 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorage().
2555 renderbuffer_storage_target(GLenum target
, GLenum internalFormat
,
2556 GLsizei width
, GLsizei height
, GLsizei samples
,
2557 GLsizei storageSamples
, const char *func
)
2559 GET_CURRENT_CONTEXT(ctx
);
2561 if (MESA_VERBOSE
& VERBOSE_API
) {
2562 if (samples
== NO_SAMPLES
)
2563 _mesa_debug(ctx
, "%s(%s, %s, %d, %d)\n",
2565 _mesa_enum_to_string(target
),
2566 _mesa_enum_to_string(internalFormat
),
2569 _mesa_debug(ctx
, "%s(%s, %s, %d, %d, %d)\n",
2571 _mesa_enum_to_string(target
),
2572 _mesa_enum_to_string(internalFormat
),
2573 width
, height
, samples
);
2576 if (target
!= GL_RENDERBUFFER_EXT
) {
2577 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
2581 if (!ctx
->CurrentRenderbuffer
) {
2582 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(no renderbuffer bound)",
2587 renderbuffer_storage(ctx
, ctx
->CurrentRenderbuffer
, internalFormat
, width
,
2588 height
, samples
, storageSamples
, func
);
2593 _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target
, GLeglImageOES image
)
2595 struct gl_renderbuffer
*rb
;
2596 GET_CURRENT_CONTEXT(ctx
);
2598 if (!ctx
->Extensions
.OES_EGL_image
) {
2599 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2600 "glEGLImageTargetRenderbufferStorageOES(unsupported)");
2604 if (target
!= GL_RENDERBUFFER
) {
2605 _mesa_error(ctx
, GL_INVALID_ENUM
,
2606 "EGLImageTargetRenderbufferStorageOES");
2610 rb
= ctx
->CurrentRenderbuffer
;
2612 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2613 "EGLImageTargetRenderbufferStorageOES");
2617 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2619 ctx
->Driver
.EGLImageTargetRenderbufferStorage(ctx
, rb
, image
);
2624 * Helper function for _mesa_GetRenderbufferParameteriv() and
2625 * _mesa_GetFramebufferAttachmentParameteriv()
2626 * We have to be careful to respect the base format. For example, if a
2627 * renderbuffer/texture was created with internalFormat=GL_RGB but the
2628 * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
2629 * we need to return zero.
2632 get_component_bits(GLenum pname
, GLenum baseFormat
, mesa_format format
)
2634 if (_mesa_base_format_has_channel(baseFormat
, pname
))
2635 return _mesa_get_format_bits(format
, pname
);
2643 _mesa_RenderbufferStorage(GLenum target
, GLenum internalFormat
,
2644 GLsizei width
, GLsizei height
)
2646 /* GL_ARB_fbo says calling this function is equivalent to calling
2647 * glRenderbufferStorageMultisample() with samples=0. We pass in
2648 * a token value here just for error reporting purposes.
2650 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2651 NO_SAMPLES
, 0, "glRenderbufferStorage");
2656 _mesa_RenderbufferStorageMultisample(GLenum target
, GLsizei samples
,
2657 GLenum internalFormat
,
2658 GLsizei width
, GLsizei height
)
2660 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2662 "glRenderbufferStorageMultisample");
2667 _mesa_RenderbufferStorageMultisampleAdvancedAMD(
2668 GLenum target
, GLsizei samples
, GLsizei storageSamples
,
2669 GLenum internalFormat
, GLsizei width
, GLsizei height
)
2671 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2672 samples
, storageSamples
,
2673 "glRenderbufferStorageMultisampleAdvancedAMD");
2678 * OpenGL ES version of glRenderBufferStorage.
2681 _es_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
2682 GLsizei width
, GLsizei height
)
2684 switch (internalFormat
) {
2686 /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
2687 /* choose a closest format */
2688 internalFormat
= GL_RGB5
;
2694 renderbuffer_storage_target(target
, internalFormat
, width
, height
, 0, 0,
2695 "glRenderbufferStorageEXT");
2699 _mesa_NamedRenderbufferStorage(GLuint renderbuffer
, GLenum internalformat
,
2700 GLsizei width
, GLsizei height
)
2702 /* GL_ARB_fbo says calling this function is equivalent to calling
2703 * glRenderbufferStorageMultisample() with samples=0. We pass in
2704 * a token value here just for error reporting purposes.
2706 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2707 NO_SAMPLES
, 0, "glNamedRenderbufferStorage");
2711 _mesa_NamedRenderbufferStorageEXT(GLuint renderbuffer
, GLenum internalformat
,
2712 GLsizei width
, GLsizei height
)
2714 GET_CURRENT_CONTEXT(ctx
);
2715 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2716 if (!rb
|| rb
== &DummyRenderbuffer
) {
2717 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
2718 rb
= allocate_renderbuffer_locked(ctx
, renderbuffer
, "glNamedRenderbufferStorageEXT");
2719 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
2721 renderbuffer_storage(ctx
, rb
, internalformat
, width
, height
, NO_SAMPLES
,
2722 0, "glNamedRenderbufferStorageEXT");
2727 _mesa_NamedRenderbufferStorageMultisample(GLuint renderbuffer
, GLsizei samples
,
2728 GLenum internalformat
,
2729 GLsizei width
, GLsizei height
)
2731 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2733 "glNamedRenderbufferStorageMultisample");
2738 _mesa_NamedRenderbufferStorageMultisampleEXT(GLuint renderbuffer
, GLsizei samples
,
2739 GLenum internalformat
,
2740 GLsizei width
, GLsizei height
)
2742 GET_CURRENT_CONTEXT(ctx
);
2743 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2744 if (!rb
|| rb
== &DummyRenderbuffer
) {
2745 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
2746 rb
= allocate_renderbuffer_locked(ctx
, renderbuffer
,
2747 "glNamedRenderbufferStorageMultisampleEXT");
2748 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
2750 renderbuffer_storage(ctx
, rb
, internalformat
, width
, height
,
2752 "glNamedRenderbufferStorageMultisample");
2757 _mesa_NamedRenderbufferStorageMultisampleAdvancedAMD(
2758 GLuint renderbuffer
, GLsizei samples
, GLsizei storageSamples
,
2759 GLenum internalformat
, GLsizei width
, GLsizei height
)
2761 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2762 samples
, storageSamples
,
2763 "glNamedRenderbufferStorageMultisampleAdvancedAMD");
2768 get_render_buffer_parameteriv(struct gl_context
*ctx
,
2769 struct gl_renderbuffer
*rb
, GLenum pname
,
2770 GLint
*params
, const char *func
)
2772 /* No need to flush here since we're just quering state which is
2773 * not effected by rendering.
2777 case GL_RENDERBUFFER_WIDTH_EXT
:
2778 *params
= rb
->Width
;
2780 case GL_RENDERBUFFER_HEIGHT_EXT
:
2781 *params
= rb
->Height
;
2783 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
2784 *params
= rb
->InternalFormat
;
2786 case GL_RENDERBUFFER_RED_SIZE_EXT
:
2787 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
2788 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
2789 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
2790 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
2791 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
2792 *params
= get_component_bits(pname
, rb
->_BaseFormat
, rb
->Format
);
2794 case GL_RENDERBUFFER_SAMPLES
:
2795 if ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_framebuffer_object
)
2796 || _mesa_is_gles3(ctx
)) {
2797 *params
= rb
->NumSamples
;
2801 case GL_RENDERBUFFER_STORAGE_SAMPLES_AMD
:
2802 if (ctx
->Extensions
.AMD_framebuffer_multisample_advanced
) {
2803 *params
= rb
->NumStorageSamples
;
2809 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname=%s)", func
,
2810 _mesa_enum_to_string(pname
));
2815 _mesa_GetRenderbufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
2817 GET_CURRENT_CONTEXT(ctx
);
2819 if (target
!= GL_RENDERBUFFER_EXT
) {
2820 _mesa_error(ctx
, GL_INVALID_ENUM
,
2821 "glGetRenderbufferParameterivEXT(target)");
2825 if (!ctx
->CurrentRenderbuffer
) {
2826 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetRenderbufferParameterivEXT"
2827 "(no renderbuffer bound)");
2831 get_render_buffer_parameteriv(ctx
, ctx
->CurrentRenderbuffer
, pname
,
2832 params
, "glGetRenderbufferParameteriv");
2837 _mesa_GetNamedRenderbufferParameteriv(GLuint renderbuffer
, GLenum pname
,
2840 GET_CURRENT_CONTEXT(ctx
);
2842 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2843 if (!rb
|| rb
== &DummyRenderbuffer
) {
2844 /* ID was reserved, but no real renderbuffer object made yet */
2845 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetNamedRenderbufferParameteriv"
2846 "(invalid renderbuffer %i)", renderbuffer
);
2850 get_render_buffer_parameteriv(ctx
, rb
, pname
, params
,
2851 "glGetNamedRenderbufferParameteriv");
2856 _mesa_GetNamedRenderbufferParameterivEXT(GLuint renderbuffer
, GLenum pname
,
2859 GET_CURRENT_CONTEXT(ctx
);
2861 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2862 if (!rb
|| rb
== &DummyRenderbuffer
) {
2863 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
2864 rb
= allocate_renderbuffer_locked(ctx
, renderbuffer
, "glGetNamedRenderbufferParameterivEXT");
2865 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
2868 get_render_buffer_parameteriv(ctx
, rb
, pname
, params
,
2869 "glGetNamedRenderbufferParameterivEXT");
2873 GLboolean GLAPIENTRY
2874 _mesa_IsFramebuffer(GLuint framebuffer
)
2876 GET_CURRENT_CONTEXT(ctx
);
2877 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
2879 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2880 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
2888 * Check if any of the attachments of the given framebuffer are textures
2889 * (render to texture). Call ctx->Driver.RenderTexture() for such
2893 check_begin_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2896 assert(ctx
->Driver
.RenderTexture
);
2898 if (_mesa_is_winsys_fbo(fb
))
2899 return; /* can't render to texture with winsys framebuffers */
2901 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2902 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2903 if (att
->Texture
&& att
->Renderbuffer
->TexImage
2904 && driver_RenderTexture_is_safe(att
)) {
2905 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
2912 * Examine all the framebuffer's attachments to see if any are textures.
2913 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
2914 * notify the device driver that the texture image may have changed.
2917 check_end_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2919 /* Skip if we know NeedsFinishRenderTexture won't be set. */
2920 if (_mesa_is_winsys_fbo(fb
) && !ctx
->Driver
.BindRenderbufferTexImage
)
2923 if (ctx
->Driver
.FinishRenderTexture
) {
2925 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2926 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2927 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
2928 if (rb
&& rb
->NeedsFinishRenderTexture
) {
2929 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
2937 bind_framebuffer(GLenum target
, GLuint framebuffer
)
2939 struct gl_framebuffer
*newDrawFb
, *newReadFb
;
2940 GLboolean bindReadBuf
, bindDrawBuf
;
2941 GET_CURRENT_CONTEXT(ctx
);
2944 case GL_DRAW_FRAMEBUFFER_EXT
:
2945 bindDrawBuf
= GL_TRUE
;
2946 bindReadBuf
= GL_FALSE
;
2948 case GL_READ_FRAMEBUFFER_EXT
:
2949 bindDrawBuf
= GL_FALSE
;
2950 bindReadBuf
= GL_TRUE
;
2952 case GL_FRAMEBUFFER_EXT
:
2953 bindDrawBuf
= GL_TRUE
;
2954 bindReadBuf
= GL_TRUE
;
2957 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
2962 /* Binding a user-created framebuffer object */
2963 newDrawFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2964 if (newDrawFb
== &DummyFramebuffer
) {
2965 /* ID was reserved, but no real framebuffer object made yet */
2968 else if (!newDrawFb
&& ctx
->API
== API_OPENGL_CORE
) {
2969 /* All FBO IDs must be Gen'd */
2970 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2971 "glBindFramebuffer(non-gen name)");
2976 /* create new framebuffer object */
2977 newDrawFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
2979 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
2982 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newDrawFb
);
2984 newReadFb
= newDrawFb
;
2987 /* Binding the window system framebuffer (which was originally set
2988 * with MakeCurrent).
2990 newDrawFb
= ctx
->WinSysDrawBuffer
;
2991 newReadFb
= ctx
->WinSysReadBuffer
;
2994 _mesa_bind_framebuffers(ctx
,
2995 bindDrawBuf
? newDrawFb
: ctx
->DrawBuffer
,
2996 bindReadBuf
? newReadFb
: ctx
->ReadBuffer
);
3000 _mesa_bind_framebuffers(struct gl_context
*ctx
,
3001 struct gl_framebuffer
*newDrawFb
,
3002 struct gl_framebuffer
*newReadFb
)
3004 struct gl_framebuffer
*const oldDrawFb
= ctx
->DrawBuffer
;
3005 struct gl_framebuffer
*const oldReadFb
= ctx
->ReadBuffer
;
3006 const bool bindDrawBuf
= oldDrawFb
!= newDrawFb
;
3007 const bool bindReadBuf
= oldReadFb
!= newReadFb
;
3010 assert(newDrawFb
!= &DummyFramebuffer
);
3013 * OK, now bind the new Draw/Read framebuffers, if they're changing.
3015 * We also check if we're beginning and/or ending render-to-texture.
3016 * When a framebuffer with texture attachments is unbound, call
3017 * ctx->Driver.FinishRenderTexture().
3018 * When a framebuffer with texture attachments is bound, call
3019 * ctx->Driver.RenderTexture().
3021 * Note that if the ReadBuffer has texture attachments we don't consider
3022 * that a render-to-texture case.
3025 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3027 /* check if old readbuffer was render-to-texture */
3028 check_end_texture_render(ctx
, oldReadFb
);
3030 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newReadFb
);
3034 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3035 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleLocations
;
3037 /* check if old framebuffer had any texture attachments */
3039 check_end_texture_render(ctx
, oldDrawFb
);
3041 /* check if newly bound framebuffer has any texture attachments */
3042 check_begin_texture_render(ctx
, newDrawFb
);
3044 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newDrawFb
);
3047 if ((bindDrawBuf
|| bindReadBuf
) && ctx
->Driver
.BindFramebuffer
) {
3048 /* The few classic drivers that actually hook this function really only
3049 * want to know if the draw framebuffer changed.
3051 ctx
->Driver
.BindFramebuffer(ctx
,
3052 bindDrawBuf
? GL_FRAMEBUFFER
: GL_READ_FRAMEBUFFER
,
3053 newDrawFb
, newReadFb
);
3058 _mesa_BindFramebuffer(GLenum target
, GLuint framebuffer
)
3060 /* OpenGL ES glBindFramebuffer and glBindFramebufferOES use this same entry
3061 * point, but they allow the use of user-generated names.
3063 bind_framebuffer(target
, framebuffer
);
3068 _mesa_BindFramebufferEXT(GLenum target
, GLuint framebuffer
)
3070 bind_framebuffer(target
, framebuffer
);
3075 _mesa_DeleteFramebuffers(GLsizei n
, const GLuint
*framebuffers
)
3078 GET_CURRENT_CONTEXT(ctx
);
3081 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteFramebuffers(n < 0)");
3085 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3087 for (i
= 0; i
< n
; i
++) {
3088 if (framebuffers
[i
] > 0) {
3089 struct gl_framebuffer
*fb
;
3090 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
3092 assert(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
3094 /* check if deleting currently bound framebuffer object */
3095 if (fb
== ctx
->DrawBuffer
) {
3097 assert(fb
->RefCount
>= 2);
3098 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, 0);
3100 if (fb
== ctx
->ReadBuffer
) {
3102 assert(fb
->RefCount
>= 2);
3103 _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER
, 0);
3106 /* remove from hash table immediately, to free the ID */
3107 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
3109 if (fb
!= &DummyFramebuffer
) {
3110 /* But the object will not be freed until it's no longer
3111 * bound in any context.
3113 _mesa_reference_framebuffer(&fb
, NULL
);
3122 * This is the implementation for glGenFramebuffers and glCreateFramebuffers.
3123 * It is not exposed to the rest of Mesa to encourage the use of
3124 * nameless buffers in driver internals.
3127 create_framebuffers(GLsizei n
, GLuint
*framebuffers
, bool dsa
)
3129 GET_CURRENT_CONTEXT(ctx
);
3132 struct gl_framebuffer
*fb
;
3134 const char *func
= dsa
? "glCreateFramebuffers" : "glGenFramebuffers";
3137 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n < 0)", func
);
3144 _mesa_HashLockMutex(ctx
->Shared
->FrameBuffers
);
3146 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
3148 for (i
= 0; i
< n
; i
++) {
3149 GLuint name
= first
+ i
;
3150 framebuffers
[i
] = name
;
3153 fb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffers
[i
]);
3155 _mesa_HashUnlockMutex(ctx
->Shared
->FrameBuffers
);
3156 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
3161 fb
= &DummyFramebuffer
;
3163 _mesa_HashInsertLocked(ctx
->Shared
->FrameBuffers
, name
, fb
);
3166 _mesa_HashUnlockMutex(ctx
->Shared
->FrameBuffers
);
3171 _mesa_GenFramebuffers(GLsizei n
, GLuint
*framebuffers
)
3173 create_framebuffers(n
, framebuffers
, false);
3178 _mesa_CreateFramebuffers(GLsizei n
, GLuint
*framebuffers
)
3180 create_framebuffers(n
, framebuffers
, true);
3185 _mesa_check_framebuffer_status(struct gl_context
*ctx
,
3186 struct gl_framebuffer
*buffer
)
3188 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
3190 if (_mesa_is_winsys_fbo(buffer
)) {
3191 /* EGL_KHR_surfaceless_context allows the winsys FBO to be incomplete. */
3192 if (buffer
!= &IncompleteFramebuffer
) {
3193 return GL_FRAMEBUFFER_COMPLETE_EXT
;
3195 return GL_FRAMEBUFFER_UNDEFINED
;
3199 /* No need to flush here */
3201 if (buffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE
) {
3202 _mesa_test_framebuffer_completeness(ctx
, buffer
);
3205 return buffer
->_Status
;
3210 _mesa_CheckFramebufferStatus_no_error(GLenum target
)
3212 GET_CURRENT_CONTEXT(ctx
);
3214 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
3215 return _mesa_check_framebuffer_status(ctx
, fb
);
3220 _mesa_CheckFramebufferStatus(GLenum target
)
3222 struct gl_framebuffer
*fb
;
3223 GET_CURRENT_CONTEXT(ctx
);
3225 if (MESA_VERBOSE
& VERBOSE_API
)
3226 _mesa_debug(ctx
, "glCheckFramebufferStatus(%s)\n",
3227 _mesa_enum_to_string(target
));
3229 fb
= get_framebuffer_target(ctx
, target
);
3231 _mesa_error(ctx
, GL_INVALID_ENUM
,
3232 "glCheckFramebufferStatus(invalid target %s)",
3233 _mesa_enum_to_string(target
));
3237 return _mesa_check_framebuffer_status(ctx
, fb
);
3242 _mesa_CheckNamedFramebufferStatus(GLuint framebuffer
, GLenum target
)
3244 struct gl_framebuffer
*fb
;
3245 GET_CURRENT_CONTEXT(ctx
);
3247 /* Validate the target (for conformance's sake) and grab a reference to the
3248 * default framebuffer in case framebuffer = 0.
3249 * Section 9.4 Framebuffer Completeness of the OpenGL 4.5 core spec
3250 * (30.10.2014, PDF page 336) says:
3251 * "If framebuffer is zero, then the status of the default read or
3252 * draw framebuffer (as determined by target) is returned."
3255 case GL_DRAW_FRAMEBUFFER
:
3256 case GL_FRAMEBUFFER
:
3257 fb
= ctx
->WinSysDrawBuffer
;
3259 case GL_READ_FRAMEBUFFER
:
3260 fb
= ctx
->WinSysReadBuffer
;
3263 _mesa_error(ctx
, GL_INVALID_ENUM
,
3264 "glCheckNamedFramebufferStatus(invalid target %s)",
3265 _mesa_enum_to_string(target
));
3270 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3271 "glCheckNamedFramebufferStatus");
3276 return _mesa_check_framebuffer_status(ctx
, fb
);
3281 _mesa_CheckNamedFramebufferStatusEXT(GLuint framebuffer
, GLenum target
)
3283 struct gl_framebuffer
*fb
;
3284 GET_CURRENT_CONTEXT(ctx
);
3287 case GL_DRAW_FRAMEBUFFER
:
3288 case GL_FRAMEBUFFER
:
3289 case GL_READ_FRAMEBUFFER
:
3292 _mesa_error(ctx
, GL_INVALID_ENUM
,
3293 "glCheckNamedFramebufferStatusEXT(invalid target %s)",
3294 _mesa_enum_to_string(target
));
3298 if (framebuffer
== 0) {
3299 return _mesa_CheckNamedFramebufferStatus(0, target
);
3302 fb
= _mesa_lookup_framebuffer_dsa(ctx
, framebuffer
,
3303 "glCheckNamedFramebufferStatusEXT");
3307 return _mesa_check_framebuffer_status(ctx
, fb
);
3312 * Replicate the src attachment point. Used by framebuffer_texture() when
3313 * the same texture is attached at GL_DEPTH_ATTACHMENT and
3314 * GL_STENCIL_ATTACHMENT.
3317 reuse_framebuffer_texture_attachment(struct gl_framebuffer
*fb
,
3318 gl_buffer_index dst
,
3319 gl_buffer_index src
)
3321 struct gl_renderbuffer_attachment
*dst_att
= &fb
->Attachment
[dst
];
3322 struct gl_renderbuffer_attachment
*src_att
= &fb
->Attachment
[src
];
3324 assert(src_att
->Texture
!= NULL
);
3325 assert(src_att
->Renderbuffer
!= NULL
);
3327 _mesa_reference_texobj(&dst_att
->Texture
, src_att
->Texture
);
3328 _mesa_reference_renderbuffer(&dst_att
->Renderbuffer
, src_att
->Renderbuffer
);
3329 dst_att
->Type
= src_att
->Type
;
3330 dst_att
->Complete
= src_att
->Complete
;
3331 dst_att
->TextureLevel
= src_att
->TextureLevel
;
3332 dst_att
->CubeMapFace
= src_att
->CubeMapFace
;
3333 dst_att
->Zoffset
= src_att
->Zoffset
;
3334 dst_att
->Layered
= src_att
->Layered
;
3338 static struct gl_texture_object
*
3339 get_texture_for_framebuffer(struct gl_context
*ctx
, GLuint texture
)
3344 return _mesa_lookup_texture(ctx
, texture
);
3349 * Common code called by gl*FramebufferTexture*() to retrieve the correct
3350 * texture object pointer.
3352 * \param texObj where the pointer to the texture object is returned. Note
3353 * that a successful call may return texObj = NULL.
3355 * \return true if no errors, false if errors
3358 get_texture_for_framebuffer_err(struct gl_context
*ctx
, GLuint texture
,
3359 bool layered
, const char *caller
,
3360 struct gl_texture_object
**texObj
)
3362 *texObj
= NULL
; /* This will get returned if texture = 0. */
3367 *texObj
= _mesa_lookup_texture(ctx
, texture
);
3368 if (*texObj
== NULL
|| (*texObj
)->Target
== 0) {
3369 /* Can't render to a non-existent texture object.
3371 * The OpenGL 4.5 core spec (02.02.2015) in Section 9.2 Binding and
3372 * Managing Framebuffer Objects specifies a different error
3373 * depending upon the calling function (PDF pages 325-328).
3374 * *FramebufferTexture (where layered = GL_TRUE) throws invalid
3375 * value, while the other commands throw invalid operation (where
3376 * layered = GL_FALSE).
3378 const GLenum error
= layered
? GL_INVALID_VALUE
:
3379 GL_INVALID_OPERATION
;
3380 _mesa_error(ctx
, error
,
3381 "%s(non-existent texture %u)", caller
, texture
);
3390 * Common code called by gl*FramebufferTexture() to verify the texture target
3391 * and decide whether or not the attachment should truly be considered
3394 * \param layered true if attachment should be considered layered, false if
3397 * \return true if no errors, false if errors
3400 check_layered_texture_target(struct gl_context
*ctx
, GLenum target
,
3401 const char *caller
, GLboolean
*layered
)
3407 case GL_TEXTURE_1D_ARRAY_EXT
:
3408 case GL_TEXTURE_2D_ARRAY_EXT
:
3409 case GL_TEXTURE_CUBE_MAP
:
3410 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3411 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3415 case GL_TEXTURE_RECTANGLE
:
3416 case GL_TEXTURE_2D_MULTISAMPLE
:
3417 /* These texture types are valid to pass to
3418 * glFramebufferTexture(), but since they aren't layered, it
3419 * is equivalent to calling glFramebufferTexture{1D,2D}().
3421 *layered
= GL_FALSE
;
3425 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3426 "%s(invalid texture target %s)", caller
,
3427 _mesa_enum_to_string(target
));
3433 * Common code called by gl*FramebufferTextureLayer() to verify the texture
3436 * \return true if no errors, false if errors
3439 check_texture_target(struct gl_context
*ctx
, GLenum target
,
3442 /* We're being called by glFramebufferTextureLayer().
3443 * The only legal texture types for that function are 3D,
3444 * cube-map, and 1D/2D/cube-map array textures.
3446 * We don't need to check for GL_ARB_texture_cube_map_array because the
3447 * application wouldn't have been able to create a texture with a
3448 * GL_TEXTURE_CUBE_MAP_ARRAY target if the extension were not enabled.
3452 case GL_TEXTURE_1D_ARRAY
:
3453 case GL_TEXTURE_2D_ARRAY
:
3454 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3455 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3457 case GL_TEXTURE_CUBE_MAP
:
3458 /* GL_TEXTURE_CUBE_MAP is only allowed by OpenGL 4.5 here, which
3459 * includes the DSA API.
3461 * Because DSA is only enabled for GL 3.1+ and this can be called
3462 * from _mesa_FramebufferTextureLayer in compatibility profile,
3463 * we need to check the version.
3465 return _mesa_is_desktop_gl(ctx
) && ctx
->Version
>= 31;
3468 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3469 "%s(invalid texture target %s)", caller
,
3470 _mesa_enum_to_string(target
));
3476 * Common code called by glFramebufferTexture*D() to verify the texture
3479 * \return true if no errors, false if errors
3482 check_textarget(struct gl_context
*ctx
, int dims
, GLenum target
,
3483 GLenum textarget
, const char *caller
)
3487 switch (textarget
) {
3491 case GL_TEXTURE_1D_ARRAY
:
3492 err
= dims
!= 1 || !ctx
->Extensions
.EXT_texture_array
;
3497 case GL_TEXTURE_2D_ARRAY
:
3498 err
= dims
!= 2 || !ctx
->Extensions
.EXT_texture_array
||
3499 (_mesa_is_gles(ctx
) && ctx
->Version
< 30);
3501 case GL_TEXTURE_2D_MULTISAMPLE
:
3502 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3504 !ctx
->Extensions
.ARB_texture_multisample
||
3505 (_mesa_is_gles(ctx
) && ctx
->Version
< 31);
3507 case GL_TEXTURE_RECTANGLE
:
3508 err
= dims
!= 2 || _mesa_is_gles(ctx
) ||
3509 !ctx
->Extensions
.NV_texture_rectangle
;
3511 case GL_TEXTURE_CUBE_MAP
:
3512 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3515 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
3516 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
3517 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
3518 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
3519 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
3520 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
3521 err
= dims
!= 2 || !ctx
->Extensions
.ARB_texture_cube_map
;
3527 _mesa_error(ctx
, GL_INVALID_ENUM
,
3528 "%s(unknown textarget 0x%x)", caller
, textarget
);
3533 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3534 "%s(invalid textarget %s)",
3535 caller
, _mesa_enum_to_string(textarget
));
3539 /* Make sure textarget is consistent with the texture's type */
3540 err
= (target
== GL_TEXTURE_CUBE_MAP
) ?
3541 !_mesa_is_cube_face(textarget
): (target
!= textarget
);
3544 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3545 "%s(mismatched texture target)", caller
);
3554 * Common code called by gl*FramebufferTextureLayer() and
3555 * glFramebufferTexture3D() to validate the layer.
3557 * \return true if no errors, false if errors
3560 check_layer(struct gl_context
*ctx
, GLenum target
, GLint layer
,
3563 /* Page 306 (page 328 of the PDF) of the OpenGL 4.5 (Core Profile)
3566 * "An INVALID_VALUE error is generated if texture is non-zero
3567 * and layer is negative."
3570 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(layer %d < 0)", caller
, layer
);
3574 if (target
== GL_TEXTURE_3D
) {
3575 const GLuint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
3576 if (layer
>= maxSize
) {
3577 _mesa_error(ctx
, GL_INVALID_VALUE
,
3578 "%s(invalid layer %u)", caller
, layer
);
3582 else if ((target
== GL_TEXTURE_1D_ARRAY
) ||
3583 (target
== GL_TEXTURE_2D_ARRAY
) ||
3584 (target
== GL_TEXTURE_CUBE_MAP_ARRAY
) ||
3585 (target
== GL_TEXTURE_2D_MULTISAMPLE_ARRAY
)) {
3586 if (layer
>= ctx
->Const
.MaxArrayTextureLayers
) {
3587 _mesa_error(ctx
, GL_INVALID_VALUE
,
3588 "%s(layer %u >= GL_MAX_ARRAY_TEXTURE_LAYERS)",
3593 else if (target
== GL_TEXTURE_CUBE_MAP
) {
3595 _mesa_error(ctx
, GL_INVALID_VALUE
,
3596 "%s(layer %u >= 6)", caller
, layer
);
3606 * Common code called by all gl*FramebufferTexture*() entry points to verify
3609 * \return true if no errors, false if errors
3612 check_level(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
3613 GLenum target
, GLint level
, const char *caller
)
3615 /* Section 9.2.8 of the OpenGL 4.6 specification says:
3617 * "If texture refers to an immutable-format texture, level must be
3618 * greater than or equal to zero and smaller than the value of
3619 * TEXTURE_VIEW_NUM_LEVELS for texture."
3621 const int max_levels
= texObj
->Immutable
? texObj
->ImmutableLevels
:
3622 _mesa_max_texture_levels(ctx
, target
);
3624 if (level
< 0 || level
>= max_levels
) {
3625 _mesa_error(ctx
, GL_INVALID_VALUE
,
3626 "%s(invalid level %d)", caller
, level
);
3634 struct gl_renderbuffer_attachment
*
3635 _mesa_get_and_validate_attachment(struct gl_context
*ctx
,
3636 struct gl_framebuffer
*fb
,
3637 GLenum attachment
, const char *caller
)
3639 /* The window-system framebuffer object is immutable */
3640 if (_mesa_is_winsys_fbo(fb
)) {
3641 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(window-system framebuffer)",
3646 /* Not a hash lookup, so we can afford to get the attachment here. */
3647 bool is_color_attachment
;
3648 struct gl_renderbuffer_attachment
*att
=
3649 get_attachment(ctx
, fb
, attachment
, &is_color_attachment
);
3651 if (is_color_attachment
) {
3652 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3653 "%s(invalid color attachment %s)", caller
,
3654 _mesa_enum_to_string(attachment
));
3656 _mesa_error(ctx
, GL_INVALID_ENUM
,
3657 "%s(invalid attachment %s)", caller
,
3658 _mesa_enum_to_string(attachment
));
3668 _mesa_framebuffer_texture(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
3670 struct gl_renderbuffer_attachment
*att
,
3671 struct gl_texture_object
*texObj
, GLenum textarget
,
3672 GLint level
, GLsizei samples
,
3673 GLuint layer
, GLboolean layered
)
3675 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3677 simple_mtx_lock(&fb
->Mutex
);
3679 if (attachment
== GL_DEPTH_ATTACHMENT
&&
3680 texObj
== fb
->Attachment
[BUFFER_STENCIL
].Texture
&&
3681 level
== fb
->Attachment
[BUFFER_STENCIL
].TextureLevel
&&
3682 _mesa_tex_target_to_face(textarget
) ==
3683 fb
->Attachment
[BUFFER_STENCIL
].CubeMapFace
&&
3684 samples
== fb
->Attachment
[BUFFER_STENCIL
].NumSamples
&&
3685 layer
== fb
->Attachment
[BUFFER_STENCIL
].Zoffset
) {
3686 /* The texture object is already attached to the stencil attachment
3687 * point. Don't create a new renderbuffer; just reuse the stencil
3688 * attachment's. This is required to prevent a GL error in
3689 * glGetFramebufferAttachmentParameteriv(GL_DEPTH_STENCIL).
3691 reuse_framebuffer_texture_attachment(fb
, BUFFER_DEPTH
,
3693 } else if (attachment
== GL_STENCIL_ATTACHMENT
&&
3694 texObj
== fb
->Attachment
[BUFFER_DEPTH
].Texture
&&
3695 level
== fb
->Attachment
[BUFFER_DEPTH
].TextureLevel
&&
3696 _mesa_tex_target_to_face(textarget
) ==
3697 fb
->Attachment
[BUFFER_DEPTH
].CubeMapFace
&&
3698 samples
== fb
->Attachment
[BUFFER_DEPTH
].NumSamples
&&
3699 layer
== fb
->Attachment
[BUFFER_DEPTH
].Zoffset
) {
3700 /* As above, but with depth and stencil transposed. */
3701 reuse_framebuffer_texture_attachment(fb
, BUFFER_STENCIL
,
3704 set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
3705 level
, samples
, layer
, layered
);
3707 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3708 /* Above we created a new renderbuffer and attached it to the
3709 * depth attachment point. Now attach it to the stencil attachment
3712 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3713 reuse_framebuffer_texture_attachment(fb
,BUFFER_STENCIL
,
3718 /* Set the render-to-texture flag. We'll check this flag in
3719 * glTexImage() and friends to determine if we need to revalidate
3720 * any FBOs that might be rendering into this texture.
3721 * This flag never gets cleared since it's non-trivial to determine
3722 * when all FBOs might be done rendering to this texture. That's OK
3723 * though since it's uncommon to render to a texture then repeatedly
3724 * call glTexImage() to change images in the texture.
3726 texObj
->_RenderToTexture
= GL_TRUE
;
3729 remove_attachment(ctx
, att
);
3730 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3731 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3732 remove_attachment(ctx
, &fb
->Attachment
[BUFFER_STENCIL
]);
3736 invalidate_framebuffer(fb
);
3738 simple_mtx_unlock(&fb
->Mutex
);
3743 framebuffer_texture_with_dims_no_error(GLenum target
, GLenum attachment
,
3744 GLenum textarget
, GLuint texture
,
3745 GLint level
, GLint layer
)
3747 GET_CURRENT_CONTEXT(ctx
);
3749 /* Get the framebuffer object */
3750 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
3752 /* Get the texture object */
3753 struct gl_texture_object
*texObj
=
3754 get_texture_for_framebuffer(ctx
, texture
);
3756 struct gl_renderbuffer_attachment
*att
=
3757 get_attachment(ctx
, fb
, attachment
, NULL
);
3759 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3760 level
, 0, layer
, GL_FALSE
);
3765 framebuffer_texture_with_dims(int dims
, GLenum target
, GLuint framebuffer
,
3766 GLenum attachment
, GLenum textarget
,
3767 GLuint texture
, GLint level
, GLsizei samples
,
3768 GLint layer
, const char *caller
, bool dsa
)
3770 GET_CURRENT_CONTEXT(ctx
);
3771 struct gl_framebuffer
*fb
;
3772 struct gl_texture_object
*texObj
;
3774 /* Get the framebuffer object */
3776 fb
= _mesa_lookup_framebuffer_dsa(ctx
, framebuffer
, caller
);
3778 fb
= get_framebuffer_target(ctx
, target
);
3781 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", caller
,
3782 _mesa_enum_to_string(target
));
3786 /* Get the texture object */
3787 if (!get_texture_for_framebuffer_err(ctx
, texture
, false, caller
, &texObj
))
3791 if (!check_textarget(ctx
, dims
, texObj
->Target
, textarget
, caller
))
3794 if ((dims
== 3) && !check_layer(ctx
, texObj
->Target
, layer
, caller
))
3797 if (!check_level(ctx
, texObj
, textarget
, level
, caller
))
3801 struct gl_renderbuffer_attachment
*att
=
3802 _mesa_get_and_validate_attachment(ctx
, fb
, attachment
, caller
);
3806 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3807 level
, samples
, layer
, GL_FALSE
);
3812 _mesa_FramebufferTexture1D_no_error(GLenum target
, GLenum attachment
,
3813 GLenum textarget
, GLuint texture
,
3816 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3822 _mesa_FramebufferTexture1D(GLenum target
, GLenum attachment
,
3823 GLenum textarget
, GLuint texture
, GLint level
)
3825 framebuffer_texture_with_dims(1, target
, 0, attachment
, textarget
, texture
,
3826 level
, 0, 0, "glFramebufferTexture1D", false);
3831 _mesa_FramebufferTexture2D_no_error(GLenum target
, GLenum attachment
,
3832 GLenum textarget
, GLuint texture
,
3835 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3841 _mesa_FramebufferTexture2D(GLenum target
, GLenum attachment
,
3842 GLenum textarget
, GLuint texture
, GLint level
)
3844 framebuffer_texture_with_dims(2, target
, 0, attachment
, textarget
, texture
,
3845 level
, 0, 0, "glFramebufferTexture2D", false);
3850 _mesa_FramebufferTexture2DMultisampleEXT(GLenum target
, GLenum attachment
,
3851 GLenum textarget
, GLuint texture
,
3852 GLint level
, GLsizei samples
)
3854 framebuffer_texture_with_dims(2, target
, 0, attachment
, textarget
, texture
,
3856 "glFramebufferTexture2DMultisampleEXT",
3862 _mesa_FramebufferTexture3D_no_error(GLenum target
, GLenum attachment
,
3863 GLenum textarget
, GLuint texture
,
3864 GLint level
, GLint layer
)
3866 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3867 texture
, level
, layer
);
3872 _mesa_FramebufferTexture3D(GLenum target
, GLenum attachment
,
3873 GLenum textarget
, GLuint texture
,
3874 GLint level
, GLint layer
)
3876 framebuffer_texture_with_dims(3, target
, 0, attachment
, textarget
, texture
,
3877 level
, 0, layer
, "glFramebufferTexture3D", false);
3881 static ALWAYS_INLINE
void
3882 frame_buffer_texture(GLuint framebuffer
, GLenum target
,
3883 GLenum attachment
, GLuint texture
,
3884 GLint level
, GLint layer
, const char *func
,
3885 bool dsa
, bool no_error
, bool check_layered
)
3887 GET_CURRENT_CONTEXT(ctx
);
3888 GLboolean layered
= GL_FALSE
;
3890 if (!no_error
&& check_layered
) {
3891 if (!_mesa_has_geometry_shaders(ctx
)) {
3892 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3893 "unsupported function (%s) called", func
);
3898 /* Get the framebuffer object */
3899 struct gl_framebuffer
*fb
;
3902 fb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
3904 fb
= get_framebuffer_target(ctx
, target
);
3908 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
, func
);
3912 fb
= get_framebuffer_target(ctx
, target
);
3914 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)",
3915 func
, _mesa_enum_to_string(target
));
3921 /* Get the texture object and framebuffer attachment*/
3922 struct gl_renderbuffer_attachment
*att
;
3923 struct gl_texture_object
*texObj
;
3925 texObj
= get_texture_for_framebuffer(ctx
, texture
);
3926 att
= get_attachment(ctx
, fb
, attachment
, NULL
);
3928 if (!get_texture_for_framebuffer_err(ctx
, texture
, check_layered
, func
,
3932 att
= _mesa_get_and_validate_attachment(ctx
, fb
, attachment
, func
);
3937 GLenum textarget
= 0;
3939 if (check_layered
) {
3940 /* We do this regardless of no_error because this sets layered */
3941 if (!check_layered_texture_target(ctx
, texObj
->Target
, func
,
3947 if (!check_layered
) {
3948 if (!check_texture_target(ctx
, texObj
->Target
, func
))
3951 if (!check_layer(ctx
, texObj
->Target
, layer
, func
))
3955 if (!check_level(ctx
, texObj
, texObj
->Target
, level
, func
))
3959 if (!check_layered
&& texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3960 assert(layer
>= 0 && layer
< 6);
3961 textarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ layer
;
3966 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3967 level
, 0, layer
, layered
);
3971 _mesa_FramebufferTextureLayer_no_error(GLenum target
, GLenum attachment
,
3972 GLuint texture
, GLint level
,
3975 frame_buffer_texture(0, target
, attachment
, texture
, level
, layer
,
3976 "glFramebufferTextureLayer", false, true, false);
3981 _mesa_FramebufferTextureLayer(GLenum target
, GLenum attachment
,
3982 GLuint texture
, GLint level
, GLint layer
)
3984 frame_buffer_texture(0, target
, attachment
, texture
, level
, layer
,
3985 "glFramebufferTextureLayer", false, false, false);
3990 _mesa_NamedFramebufferTextureLayer_no_error(GLuint framebuffer
,
3992 GLuint texture
, GLint level
,
3995 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, layer
,
3996 "glNamedFramebufferTextureLayer", true, true, false);
4001 _mesa_NamedFramebufferTextureLayer(GLuint framebuffer
, GLenum attachment
,
4002 GLuint texture
, GLint level
, GLint layer
)
4004 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, layer
,
4005 "glNamedFramebufferTextureLayer", true, false, false);
4010 _mesa_FramebufferTexture_no_error(GLenum target
, GLenum attachment
,
4011 GLuint texture
, GLint level
)
4013 frame_buffer_texture(0, target
, attachment
, texture
, level
, 0,
4014 "glFramebufferTexture", false, true, true);
4019 _mesa_FramebufferTexture(GLenum target
, GLenum attachment
,
4020 GLuint texture
, GLint level
)
4022 frame_buffer_texture(0, target
, attachment
, texture
, level
, 0,
4023 "glFramebufferTexture", false, false, true);
4027 _mesa_NamedFramebufferTexture_no_error(GLuint framebuffer
, GLenum attachment
,
4028 GLuint texture
, GLint level
)
4030 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, 0,
4031 "glNamedFramebufferTexture", true, true, true);
4036 _mesa_NamedFramebufferTexture(GLuint framebuffer
, GLenum attachment
,
4037 GLuint texture
, GLint level
)
4039 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, 0,
4040 "glNamedFramebufferTexture", true, false, true);
4045 _mesa_NamedFramebufferTexture1DEXT(GLuint framebuffer
, GLenum attachment
,
4046 GLenum textarget
, GLuint texture
, GLint level
)
4048 framebuffer_texture_with_dims(1, GL_FRAMEBUFFER
, framebuffer
, attachment
,
4049 textarget
, texture
, level
, 0, 0,
4050 "glNamedFramebufferTexture1DEXT", true);
4055 _mesa_NamedFramebufferTexture2DEXT(GLuint framebuffer
, GLenum attachment
,
4056 GLenum textarget
, GLuint texture
, GLint level
)
4058 framebuffer_texture_with_dims(2, GL_FRAMEBUFFER
, framebuffer
, attachment
,
4059 textarget
, texture
, level
, 0, 0,
4060 "glNamedFramebufferTexture2DEXT", true);
4065 _mesa_NamedFramebufferTexture3DEXT(GLuint framebuffer
, GLenum attachment
,
4066 GLenum textarget
, GLuint texture
,
4067 GLint level
, GLint zoffset
)
4069 framebuffer_texture_with_dims(3, GL_FRAMEBUFFER
, framebuffer
, attachment
,
4070 textarget
, texture
, level
, 0, zoffset
,
4071 "glNamedFramebufferTexture3DEXT", true);
4076 _mesa_framebuffer_renderbuffer(struct gl_context
*ctx
,
4077 struct gl_framebuffer
*fb
,
4079 struct gl_renderbuffer
*rb
)
4081 assert(!_mesa_is_winsys_fbo(fb
));
4083 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
4085 assert(ctx
->Driver
.FramebufferRenderbuffer
);
4086 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
4088 /* Some subsequent GL commands may depend on the framebuffer's visual
4089 * after the binding is updated. Update visual info now.
4091 _mesa_update_framebuffer_visual(ctx
, fb
);
4094 static ALWAYS_INLINE
void
4095 framebuffer_renderbuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
4096 GLenum attachment
, GLenum renderbuffertarget
,
4097 GLuint renderbuffer
, const char *func
, bool no_error
)
4099 struct gl_renderbuffer_attachment
*att
;
4100 struct gl_renderbuffer
*rb
;
4101 bool is_color_attachment
;
4103 if (!no_error
&& renderbuffertarget
!= GL_RENDERBUFFER
) {
4104 _mesa_error(ctx
, GL_INVALID_ENUM
,
4105 "%s(renderbuffertarget is not GL_RENDERBUFFER)", func
);
4111 rb
= _mesa_lookup_renderbuffer_err(ctx
, renderbuffer
, func
);
4115 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
4118 /* remove renderbuffer attachment */
4123 if (_mesa_is_winsys_fbo(fb
)) {
4124 /* Can't attach new renderbuffers to a window system framebuffer */
4125 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4126 "%s(window-system framebuffer)", func
);
4130 att
= get_attachment(ctx
, fb
, attachment
, &is_color_attachment
);
4133 * From OpenGL 4.5 spec, section 9.2.7 "Attaching Renderbuffer Images
4134 * to a Framebuffer":
4136 * "An INVALID_OPERATION error is generated if attachment is
4137 * COLOR_- ATTACHMENTm where m is greater than or equal to the
4138 * value of MAX_COLOR_- ATTACHMENTS ."
4140 * If we are at this point, is because the attachment is not valid, so
4141 * if is_color_attachment is true, is because of the previous reason.
4143 if (is_color_attachment
) {
4144 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4145 "%s(invalid color attachment %s)", func
,
4146 _mesa_enum_to_string(attachment
));
4148 _mesa_error(ctx
, GL_INVALID_ENUM
,
4149 "%s(invalid attachment %s)", func
,
4150 _mesa_enum_to_string(attachment
));
4156 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
&&
4157 rb
&& rb
->Format
!= MESA_FORMAT_NONE
) {
4158 /* make sure the renderbuffer is a depth/stencil format */
4159 const GLenum baseFormat
= _mesa_get_format_base_format(rb
->Format
);
4160 if (baseFormat
!= GL_DEPTH_STENCIL
) {
4161 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4162 "%s(renderbuffer is not DEPTH_STENCIL format)", func
);
4168 _mesa_framebuffer_renderbuffer(ctx
, fb
, attachment
, rb
);
4172 framebuffer_renderbuffer_error(struct gl_context
*ctx
,
4173 struct gl_framebuffer
*fb
, GLenum attachment
,
4174 GLenum renderbuffertarget
,
4175 GLuint renderbuffer
, const char *func
)
4177 framebuffer_renderbuffer(ctx
, fb
, attachment
, renderbuffertarget
,
4178 renderbuffer
, func
, false);
4182 framebuffer_renderbuffer_no_error(struct gl_context
*ctx
,
4183 struct gl_framebuffer
*fb
, GLenum attachment
,
4184 GLenum renderbuffertarget
,
4185 GLuint renderbuffer
, const char *func
)
4187 framebuffer_renderbuffer(ctx
, fb
, attachment
, renderbuffertarget
,
4188 renderbuffer
, func
, true);
4192 _mesa_FramebufferRenderbuffer_no_error(GLenum target
, GLenum attachment
,
4193 GLenum renderbuffertarget
,
4194 GLuint renderbuffer
)
4196 GET_CURRENT_CONTEXT(ctx
);
4198 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
4199 framebuffer_renderbuffer_no_error(ctx
, fb
, attachment
, renderbuffertarget
,
4200 renderbuffer
, "glFramebufferRenderbuffer");
4204 _mesa_FramebufferRenderbuffer(GLenum target
, GLenum attachment
,
4205 GLenum renderbuffertarget
,
4206 GLuint renderbuffer
)
4208 struct gl_framebuffer
*fb
;
4209 GET_CURRENT_CONTEXT(ctx
);
4211 fb
= get_framebuffer_target(ctx
, target
);
4213 _mesa_error(ctx
, GL_INVALID_ENUM
,
4214 "glFramebufferRenderbuffer(invalid target %s)",
4215 _mesa_enum_to_string(target
));
4219 framebuffer_renderbuffer_error(ctx
, fb
, attachment
, renderbuffertarget
,
4220 renderbuffer
, "glFramebufferRenderbuffer");
4224 _mesa_NamedFramebufferRenderbuffer_no_error(GLuint framebuffer
,
4226 GLenum renderbuffertarget
,
4227 GLuint renderbuffer
)
4229 GET_CURRENT_CONTEXT(ctx
);
4231 struct gl_framebuffer
*fb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
4232 framebuffer_renderbuffer_no_error(ctx
, fb
, attachment
, renderbuffertarget
,
4234 "glNamedFramebufferRenderbuffer");
4238 _mesa_NamedFramebufferRenderbuffer(GLuint framebuffer
, GLenum attachment
,
4239 GLenum renderbuffertarget
,
4240 GLuint renderbuffer
)
4242 struct gl_framebuffer
*fb
;
4243 GET_CURRENT_CONTEXT(ctx
);
4245 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4246 "glNamedFramebufferRenderbuffer");
4250 framebuffer_renderbuffer_error(ctx
, fb
, attachment
, renderbuffertarget
,
4252 "glNamedFramebufferRenderbuffer");
4257 _mesa_NamedFramebufferRenderbufferEXT(GLuint framebuffer
, GLenum attachment
,
4258 GLenum renderbuffertarget
,
4259 GLuint renderbuffer
)
4261 struct gl_framebuffer
*fb
;
4262 GET_CURRENT_CONTEXT(ctx
);
4264 fb
= _mesa_lookup_framebuffer_dsa(ctx
, framebuffer
,
4265 "glNamedFramebufferRenderbufferEXT");
4269 framebuffer_renderbuffer_error(ctx
, fb
, attachment
, renderbuffertarget
,
4271 "glNamedFramebufferRenderbuffer");
4276 get_framebuffer_attachment_parameter(struct gl_context
*ctx
,
4277 struct gl_framebuffer
*buffer
,
4278 GLenum attachment
, GLenum pname
,
4279 GLint
*params
, const char *caller
)
4281 const struct gl_renderbuffer_attachment
*att
;
4282 bool is_color_attachment
= false;
4285 /* The error code for an attachment type of GL_NONE differs between APIs.
4287 * From the ES 2.0.25 specification, page 127:
4288 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
4289 * querying any other pname will generate INVALID_ENUM."
4291 * From the OpenGL 3.0 specification, page 337, or identically,
4292 * the OpenGL ES 3.0.4 specification, page 240:
4294 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, no
4295 * framebuffer is bound to target. In this case querying pname
4296 * FRAMEBUFFER_ATTACHMENT_OBJECT_NAME will return zero, and all other
4297 * queries will generate an INVALID_OPERATION error."
4299 err
= ctx
->API
== API_OPENGLES2
&& ctx
->Version
< 30 ?
4300 GL_INVALID_ENUM
: GL_INVALID_OPERATION
;
4302 if (_mesa_is_winsys_fbo(buffer
)) {
4303 /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
4306 * "If the framebuffer currently bound to target is zero, then
4307 * INVALID_OPERATION is generated."
4309 * The EXT_framebuffer_object spec has the same wording, and the
4310 * OES_framebuffer_object spec refers to the EXT_framebuffer_object
4313 if ((!_mesa_is_desktop_gl(ctx
) ||
4314 !ctx
->Extensions
.ARB_framebuffer_object
)
4315 && !_mesa_is_gles3(ctx
)) {
4316 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4317 "%s(window-system framebuffer)", caller
);
4321 if (_mesa_is_gles3(ctx
) && attachment
!= GL_BACK
&&
4322 attachment
!= GL_DEPTH
&& attachment
!= GL_STENCIL
) {
4323 _mesa_error(ctx
, GL_INVALID_ENUM
,
4324 "%s(invalid attachment %s)", caller
,
4325 _mesa_enum_to_string(attachment
));
4329 /* The specs are not clear about how to handle
4330 * GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME with the default framebuffer,
4331 * but dEQP-GLES3 expects an INVALID_ENUM error. This has also been
4334 * https://cvs.khronos.org/bugzilla/show_bug.cgi?id=12928#c1
4335 * and https://bugs.freedesktop.org/show_bug.cgi?id=31947
4337 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME
) {
4338 _mesa_error(ctx
, GL_INVALID_ENUM
,
4339 "%s(requesting GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME "
4340 "when GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is "
4341 "GL_FRAMEBUFFER_DEFAULT is not allowed)", caller
);
4345 /* the default / window-system FBO */
4346 att
= get_fb0_attachment(ctx
, buffer
, attachment
);
4349 /* user-created framebuffer FBO */
4350 att
= get_attachment(ctx
, buffer
, attachment
, &is_color_attachment
);
4355 * From OpenGL 4.5 spec, section 9.2.3 "Framebuffer Object Queries":
4357 * "An INVALID_OPERATION error is generated if a framebuffer object
4358 * is bound to target and attachment is COLOR_ATTACHMENTm where m is
4359 * greater than or equal to the value of MAX_COLOR_ATTACHMENTS."
4361 * If we are at this point, is because the attachment is not valid, so
4362 * if is_color_attachment is true, is because of the previous reason.
4364 if (is_color_attachment
) {
4365 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid color attachment %s)",
4366 caller
, _mesa_enum_to_string(attachment
));
4368 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", caller
,
4369 _mesa_enum_to_string(attachment
));
4374 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
4375 const struct gl_renderbuffer_attachment
*depthAtt
, *stencilAtt
;
4376 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
) {
4377 /* This behavior is first specified in OpenGL 4.4 specification.
4379 * From the OpenGL 4.4 spec page 275:
4380 * "This query cannot be performed for a combined depth+stencil
4381 * attachment, since it does not have a single format."
4383 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4384 "%s(GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE"
4385 " is invalid for depth+stencil attachment)", caller
);
4388 /* the depth and stencil attachments must point to the same buffer */
4389 depthAtt
= get_attachment(ctx
, buffer
, GL_DEPTH_ATTACHMENT
, NULL
);
4390 stencilAtt
= get_attachment(ctx
, buffer
, GL_STENCIL_ATTACHMENT
, NULL
);
4391 if (depthAtt
->Renderbuffer
!= stencilAtt
->Renderbuffer
) {
4392 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4393 "%s(DEPTH/STENCIL attachments differ)", caller
);
4398 /* No need to flush here */
4401 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
4402 /* From the OpenGL spec, 9.2. Binding and Managing Framebuffer Objects:
4404 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
4405 * either no framebuffer is bound to target; or the default framebuffer
4406 * is bound, attachment is DEPTH or STENCIL, and the number of depth or
4407 * stencil bits, respectively, is zero."
4409 * Note that we don't need explicit checks on DEPTH and STENCIL, because
4410 * on the case the spec is pointing, att->Type is already NONE, so we
4411 * just need to check att->Type.
4413 *params
= (_mesa_is_winsys_fbo(buffer
) && att
->Type
!= GL_NONE
) ?
4414 GL_FRAMEBUFFER_DEFAULT
: att
->Type
;
4416 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
4417 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
4418 *params
= att
->Renderbuffer
->Name
;
4420 else if (att
->Type
== GL_TEXTURE
) {
4421 *params
= att
->Texture
->Name
;
4424 assert(att
->Type
== GL_NONE
);
4425 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
4428 goto invalid_pname_enum
;
4432 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
4433 if (att
->Type
== GL_TEXTURE
) {
4434 *params
= att
->TextureLevel
;
4436 else if (att
->Type
== GL_NONE
) {
4437 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4438 _mesa_enum_to_string(pname
));
4441 goto invalid_pname_enum
;
4444 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
4445 if (att
->Type
== GL_TEXTURE
) {
4446 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
4447 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
4453 else if (att
->Type
== GL_NONE
) {
4454 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4455 _mesa_enum_to_string(pname
));
4458 goto invalid_pname_enum
;
4461 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
4462 if (ctx
->API
== API_OPENGLES
) {
4463 goto invalid_pname_enum
;
4464 } else if (att
->Type
== GL_NONE
) {
4465 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4466 _mesa_enum_to_string(pname
));
4467 } else if (att
->Type
== GL_TEXTURE
) {
4468 if (att
->Texture
&& (att
->Texture
->Target
== GL_TEXTURE_3D
||
4469 att
->Texture
->Target
== GL_TEXTURE_2D_ARRAY
)) {
4470 *params
= att
->Zoffset
;
4477 goto invalid_pname_enum
;
4480 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
:
4481 if ((!_mesa_is_desktop_gl(ctx
) ||
4482 !ctx
->Extensions
.ARB_framebuffer_object
)
4483 && !_mesa_is_gles3(ctx
)) {
4484 goto invalid_pname_enum
;
4486 else if (att
->Type
== GL_NONE
) {
4487 if (_mesa_is_winsys_fbo(buffer
) &&
4488 (attachment
== GL_DEPTH
|| attachment
== GL_STENCIL
)) {
4489 *params
= GL_LINEAR
;
4491 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4492 _mesa_enum_to_string(pname
));
4496 if (ctx
->Extensions
.EXT_sRGB
) {
4497 *params
= (_mesa_is_format_srgb(att
->Renderbuffer
->Format
) ?
4498 GL_SRGB
: GL_LINEAR
);
4501 /* According to ARB_framebuffer_sRGB, we should return LINEAR
4502 * if the sRGB conversion is unsupported. */
4503 *params
= GL_LINEAR
;
4507 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
:
4508 if ((ctx
->API
!= API_OPENGL_COMPAT
||
4509 !ctx
->Extensions
.ARB_framebuffer_object
)
4510 && ctx
->API
!= API_OPENGL_CORE
4511 && !_mesa_is_gles3(ctx
)) {
4512 goto invalid_pname_enum
;
4514 else if (att
->Type
== GL_NONE
) {
4515 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4516 _mesa_enum_to_string(pname
));
4519 mesa_format format
= att
->Renderbuffer
->Format
;
4521 /* Page 235 (page 247 of the PDF) in section 6.1.13 of the OpenGL ES
4524 * "If pname is FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE.... If
4525 * attachment is DEPTH_STENCIL_ATTACHMENT the query will fail and
4526 * generate an INVALID_OPERATION error.
4528 if (_mesa_is_gles3(ctx
) &&
4529 attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
4530 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4532 "GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE of "
4533 "GL_DEPTH_STENCIL_ATTACHMENT)", caller
);
4537 if (format
== MESA_FORMAT_S_UINT8
) {
4541 else if (format
== MESA_FORMAT_Z32_FLOAT_S8X24_UINT
) {
4542 /* depends on the attachment parameter */
4543 if (attachment
== GL_STENCIL_ATTACHMENT
) {
4551 *params
= _mesa_get_format_datatype(format
);
4555 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
4556 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
4557 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
4558 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
4559 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
4560 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
4561 if ((!_mesa_is_desktop_gl(ctx
) ||
4562 !ctx
->Extensions
.ARB_framebuffer_object
)
4563 && !_mesa_is_gles3(ctx
)) {
4564 goto invalid_pname_enum
;
4566 else if (att
->Texture
) {
4567 const struct gl_texture_image
*texImage
=
4568 _mesa_select_tex_image(att
->Texture
, att
->Texture
->Target
,
4571 *params
= get_component_bits(pname
, texImage
->_BaseFormat
,
4572 texImage
->TexFormat
);
4578 else if (att
->Renderbuffer
) {
4579 *params
= get_component_bits(pname
, att
->Renderbuffer
->_BaseFormat
,
4580 att
->Renderbuffer
->Format
);
4583 assert(att
->Type
== GL_NONE
);
4584 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4585 _mesa_enum_to_string(pname
));
4588 case GL_FRAMEBUFFER_ATTACHMENT_LAYERED
:
4589 if (!_mesa_has_geometry_shaders(ctx
)) {
4590 goto invalid_pname_enum
;
4591 } else if (att
->Type
== GL_TEXTURE
) {
4592 *params
= att
->Layered
;
4593 } else if (att
->Type
== GL_NONE
) {
4594 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4595 _mesa_enum_to_string(pname
));
4597 goto invalid_pname_enum
;
4600 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_SAMPLES_EXT
:
4601 if (!ctx
->Extensions
.EXT_multisampled_render_to_texture
) {
4602 goto invalid_pname_enum
;
4603 } else if (att
->Type
== GL_TEXTURE
) {
4604 *params
= att
->NumSamples
;
4605 } else if (att
->Type
== GL_NONE
) {
4606 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4607 _mesa_enum_to_string(pname
));
4609 goto invalid_pname_enum
;
4613 goto invalid_pname_enum
;
4619 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname %s)", caller
,
4620 _mesa_enum_to_string(pname
));
4626 _mesa_GetFramebufferAttachmentParameteriv(GLenum target
, GLenum attachment
,
4627 GLenum pname
, GLint
*params
)
4629 GET_CURRENT_CONTEXT(ctx
);
4630 struct gl_framebuffer
*buffer
;
4632 buffer
= get_framebuffer_target(ctx
, target
);
4634 _mesa_error(ctx
, GL_INVALID_ENUM
,
4635 "glGetFramebufferAttachmentParameteriv(invalid target %s)",
4636 _mesa_enum_to_string(target
));
4640 get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
4642 "glGetFramebufferAttachmentParameteriv");
4647 _mesa_GetNamedFramebufferAttachmentParameteriv(GLuint framebuffer
,
4649 GLenum pname
, GLint
*params
)
4651 GET_CURRENT_CONTEXT(ctx
);
4652 struct gl_framebuffer
*buffer
;
4655 buffer
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4656 "glGetNamedFramebufferAttachmentParameteriv");
4662 * Section 9.2 Binding and Managing Framebuffer Objects of the OpenGL
4663 * 4.5 core spec (30.10.2014, PDF page 314):
4664 * "If framebuffer is zero, then the default draw framebuffer is
4667 buffer
= ctx
->WinSysDrawBuffer
;
4670 get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
4672 "glGetNamedFramebufferAttachmentParameteriv");
4677 _mesa_GetNamedFramebufferAttachmentParameterivEXT(GLuint framebuffer
,
4679 GLenum pname
, GLint
*params
)
4681 GET_CURRENT_CONTEXT(ctx
);
4682 struct gl_framebuffer
*buffer
;
4685 buffer
= _mesa_lookup_framebuffer_dsa(ctx
, framebuffer
,
4686 "glGetNamedFramebufferAttachmentParameterivEXT");
4692 * Section 9.2 Binding and Managing Framebuffer Objects of the OpenGL
4693 * 4.5 core spec (30.10.2014, PDF page 314):
4694 * "If framebuffer is zero, then the default draw framebuffer is
4697 buffer
= ctx
->WinSysDrawBuffer
;
4700 get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
4702 "glGetNamedFramebufferAttachmentParameterivEXT");
4707 _mesa_NamedFramebufferParameteri(GLuint framebuffer
, GLenum pname
,
4710 GET_CURRENT_CONTEXT(ctx
);
4711 struct gl_framebuffer
*fb
= NULL
;
4713 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
4714 !ctx
->Extensions
.ARB_sample_locations
) {
4715 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4716 "glNamedFramebufferParameteri("
4717 "neither ARB_framebuffer_no_attachments nor "
4718 "ARB_sample_locations is available)");
4723 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4724 "glNamedFramebufferParameteri");
4726 fb
= ctx
->WinSysDrawBuffer
;
4730 framebuffer_parameteri(ctx
, fb
, pname
, param
,
4731 "glNamedFramebufferParameteriv");
4736 /* Helper function for ARB_framebuffer_no_attachments functions interacting with EXT_direct_state_access */
4737 static struct gl_framebuffer
*
4738 lookup_named_framebuffer_ext_dsa(struct gl_context
*ctx
, GLuint framebuffer
, const char* caller
)
4740 struct gl_framebuffer
*fb
= NULL
;
4743 /* The ARB_framebuffer_no_attachments spec says:
4745 * "The error INVALID_VALUE is generated if <framebuffer> is not
4746 * a name returned by GenFramebuffers. If a framebuffer object
4747 * named <framebuffer> does not yet exist, it will be created."
4749 * This is different from the EXT_direct_state_access spec which says:
4751 * "If the framebuffer object named by the framebuffer parameter has not
4752 * been previously bound or has been deleted since the last binding,
4753 * the GL first creates a new state vector in the same manner as when
4754 * BindFramebuffer creates a new framebuffer object"
4756 * So first we verify that the name exists.
4758 fb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
4760 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(frameBuffer)", caller
);
4763 /* Then, make sure it's initialized */
4764 if (fb
== &DummyFramebuffer
) {
4765 fb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
4766 _mesa_HashLockMutex(ctx
->Shared
->FrameBuffers
);
4767 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, fb
);
4768 _mesa_HashUnlockMutex(ctx
->Shared
->BufferObjects
);
4772 fb
= ctx
->WinSysDrawBuffer
;
4779 _mesa_NamedFramebufferParameteriEXT(GLuint framebuffer
, GLenum pname
,
4782 GET_CURRENT_CONTEXT(ctx
);
4783 struct gl_framebuffer
*fb
=
4784 lookup_named_framebuffer_ext_dsa(ctx
, framebuffer
,
4785 "glNamedFramebufferParameteriEXT");
4790 framebuffer_parameteri(ctx
, fb
, pname
, param
,
4791 "glNamedFramebufferParameteriEXT");
4796 _mesa_GetFramebufferParameterivEXT(GLuint framebuffer
, GLenum pname
,
4799 GET_CURRENT_CONTEXT(ctx
);
4800 struct gl_framebuffer
*fb
;
4803 fb
= _mesa_lookup_framebuffer_dsa(ctx
, framebuffer
,
4804 "glGetFramebufferParameterivEXT");
4806 fb
= ctx
->WinSysDrawBuffer
;
4809 /* The GL_EXT_direct_state_access says:
4811 * The pname parameter must be one of framebuffer dependent values
4812 * listed in either table 4.nnn (namely DRAW_BUFFER, READ_BUFFER,
4813 * or DRAW_BUFFER0 through DRAW_BUFFER15).
4815 if (pname
== GL_DRAW_BUFFER
) {
4816 *param
= fb
->ColorDrawBuffer
[0];
4819 else if (pname
== GL_READ_BUFFER
) {
4820 *param
= fb
->ColorReadBuffer
;
4822 else if (GL_DRAW_BUFFER0
<= pname
&& pname
<= GL_DRAW_BUFFER15
) {
4823 *param
= fb
->ColorDrawBuffer
[pname
- GL_DRAW_BUFFER0
];
4826 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGetFramebufferParameterivEXT(pname)");
4833 _mesa_GetNamedFramebufferParameteriv(GLuint framebuffer
, GLenum pname
,
4836 GET_CURRENT_CONTEXT(ctx
);
4837 struct gl_framebuffer
*fb
;
4839 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
4840 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4841 "glNamedFramebufferParameteriv("
4842 "neither ARB_framebuffer_no_attachments nor ARB_sample_locations"
4848 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4849 "glGetNamedFramebufferParameteriv");
4851 fb
= ctx
->WinSysDrawBuffer
;
4854 get_framebuffer_parameteriv(ctx
, fb
, pname
, param
,
4855 "glGetNamedFramebufferParameteriv");
4861 _mesa_GetNamedFramebufferParameterivEXT(GLuint framebuffer
, GLenum pname
,
4864 GET_CURRENT_CONTEXT(ctx
);
4865 struct gl_framebuffer
*fb
=
4866 lookup_named_framebuffer_ext_dsa(ctx
, framebuffer
,
4867 "glGetNamedFramebufferParameterivEXT");
4872 get_framebuffer_parameteriv(ctx
, fb
, pname
, param
,
4873 "glGetNamedFramebufferParameterivEXT");
4878 invalidate_framebuffer_storage(struct gl_context
*ctx
,
4879 struct gl_framebuffer
*fb
,
4880 GLsizei numAttachments
,
4881 const GLenum
*attachments
, GLint x
, GLint y
,
4882 GLsizei width
, GLsizei height
, const char *name
)
4886 /* Section 17.4 Whole Framebuffer Operations of the OpenGL 4.5 Core
4887 * Spec (2.2.2015, PDF page 522) says:
4888 * "An INVALID_VALUE error is generated if numAttachments, width, or
4889 * height is negative."
4891 if (numAttachments
< 0) {
4892 _mesa_error(ctx
, GL_INVALID_VALUE
,
4893 "%s(numAttachments < 0)", name
);
4898 _mesa_error(ctx
, GL_INVALID_VALUE
,
4899 "%s(width < 0)", name
);
4904 _mesa_error(ctx
, GL_INVALID_VALUE
,
4905 "%s(height < 0)", name
);
4909 /* The GL_ARB_invalidate_subdata spec says:
4911 * "If an attachment is specified that does not exist in the
4912 * framebuffer bound to <target>, it is ignored."
4916 * "If <attachments> contains COLOR_ATTACHMENTm and m is greater than
4917 * or equal to the value of MAX_COLOR_ATTACHMENTS, then the error
4918 * INVALID_OPERATION is generated."
4920 * No mention is made of GL_AUXi being out of range. Therefore, we allow
4921 * any enum that can be allowed by the API (OpenGL ES 3.0 has a different
4922 * set of retrictions).
4924 for (i
= 0; i
< numAttachments
; i
++) {
4925 if (_mesa_is_winsys_fbo(fb
)) {
4926 switch (attachments
[i
]) {
4932 /* Accumulation buffers and auxilary buffers were removed in
4933 * OpenGL 3.1, and they never existed in OpenGL ES.
4935 if (ctx
->API
!= API_OPENGL_COMPAT
)
4945 case GL_FRONT_RIGHT
:
4946 if (!_mesa_is_desktop_gl(ctx
))
4953 switch (attachments
[i
]) {
4954 case GL_DEPTH_ATTACHMENT
:
4955 case GL_STENCIL_ATTACHMENT
:
4957 case GL_DEPTH_STENCIL_ATTACHMENT
:
4958 /* GL_DEPTH_STENCIL_ATTACHMENT is a valid attachment point only
4959 * in desktop and ES 3.0 profiles. Note that OES_packed_depth_stencil
4960 * extension does not make this attachment point valid on ES 2.0.
4962 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
))
4965 case GL_COLOR_ATTACHMENT0
:
4966 case GL_COLOR_ATTACHMENT1
:
4967 case GL_COLOR_ATTACHMENT2
:
4968 case GL_COLOR_ATTACHMENT3
:
4969 case GL_COLOR_ATTACHMENT4
:
4970 case GL_COLOR_ATTACHMENT5
:
4971 case GL_COLOR_ATTACHMENT6
:
4972 case GL_COLOR_ATTACHMENT7
:
4973 case GL_COLOR_ATTACHMENT8
:
4974 case GL_COLOR_ATTACHMENT9
:
4975 case GL_COLOR_ATTACHMENT10
:
4976 case GL_COLOR_ATTACHMENT11
:
4977 case GL_COLOR_ATTACHMENT12
:
4978 case GL_COLOR_ATTACHMENT13
:
4979 case GL_COLOR_ATTACHMENT14
:
4980 case GL_COLOR_ATTACHMENT15
: {
4981 unsigned k
= attachments
[i
] - GL_COLOR_ATTACHMENT0
;
4982 if (k
>= ctx
->Const
.MaxColorAttachments
) {
4983 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4984 "%s(attachment >= max. color attachments)", name
);
4995 /* We don't actually do anything for this yet. Just return after
4996 * validating the parameters and generating the required errors.
5001 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", name
,
5002 _mesa_enum_to_string(attachments
[i
]));
5006 static struct gl_renderbuffer_attachment
*
5007 get_fb_attachment(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
5008 const GLenum attachment
)
5010 switch (attachment
) {
5012 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
5013 case GL_COLOR_ATTACHMENT0
:
5014 case GL_COLOR_ATTACHMENT1
:
5015 case GL_COLOR_ATTACHMENT2
:
5016 case GL_COLOR_ATTACHMENT3
:
5017 case GL_COLOR_ATTACHMENT4
:
5018 case GL_COLOR_ATTACHMENT5
:
5019 case GL_COLOR_ATTACHMENT6
:
5020 case GL_COLOR_ATTACHMENT7
:
5021 case GL_COLOR_ATTACHMENT8
:
5022 case GL_COLOR_ATTACHMENT9
:
5023 case GL_COLOR_ATTACHMENT10
:
5024 case GL_COLOR_ATTACHMENT11
:
5025 case GL_COLOR_ATTACHMENT12
:
5026 case GL_COLOR_ATTACHMENT13
:
5027 case GL_COLOR_ATTACHMENT14
:
5028 case GL_COLOR_ATTACHMENT15
: {
5029 const unsigned i
= attachment
- GL_COLOR_ATTACHMENT0
;
5030 if (i
>= ctx
->Const
.MaxColorAttachments
)
5032 return &fb
->Attachment
[BUFFER_COLOR0
+ i
];
5035 case GL_DEPTH_ATTACHMENT
:
5036 case GL_DEPTH_STENCIL_ATTACHMENT
:
5037 return &fb
->Attachment
[BUFFER_DEPTH
];
5039 case GL_STENCIL_ATTACHMENT
:
5040 return &fb
->Attachment
[BUFFER_STENCIL
];
5047 discard_framebuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
5048 GLsizei numAttachments
, const GLenum
*attachments
)
5050 if (!ctx
->Driver
.DiscardFramebuffer
)
5053 for (int i
= 0; i
< numAttachments
; i
++) {
5054 struct gl_renderbuffer_attachment
*att
=
5055 get_fb_attachment(ctx
, fb
, attachments
[i
]);
5060 /* If we're asked to invalidate just depth or just stencil, but the
5061 * attachment is packed depth/stencil, then we can only use
5062 * Driver.DiscardFramebuffer if the attachments list includes both depth
5063 * and stencil and they both point at the same renderbuffer.
5065 if ((attachments
[i
] == GL_DEPTH_ATTACHMENT
||
5066 attachments
[i
] == GL_STENCIL_ATTACHMENT
) &&
5067 (!att
->Renderbuffer
||
5068 att
->Renderbuffer
->_BaseFormat
== GL_DEPTH_STENCIL
)) {
5069 GLenum other_format
= (attachments
[i
] == GL_DEPTH_ATTACHMENT
?
5070 GL_STENCIL_ATTACHMENT
: GL_DEPTH_ATTACHMENT
);
5071 bool has_both
= false;
5072 for (int j
= 0; j
< numAttachments
; j
++) {
5073 if (attachments
[j
] == other_format
) {
5079 if (fb
->Attachment
[BUFFER_DEPTH
].Renderbuffer
!=
5080 fb
->Attachment
[BUFFER_STENCIL
].Renderbuffer
|| !has_both
)
5084 ctx
->Driver
.DiscardFramebuffer(ctx
, fb
, att
);
5089 _mesa_InvalidateSubFramebuffer_no_error(GLenum target
, GLsizei numAttachments
,
5090 const GLenum
*attachments
, GLint x
,
5091 GLint y
, GLsizei width
, GLsizei height
)
5098 _mesa_InvalidateSubFramebuffer(GLenum target
, GLsizei numAttachments
,
5099 const GLenum
*attachments
, GLint x
, GLint y
,
5100 GLsizei width
, GLsizei height
)
5102 struct gl_framebuffer
*fb
;
5103 GET_CURRENT_CONTEXT(ctx
);
5105 fb
= get_framebuffer_target(ctx
, target
);
5107 _mesa_error(ctx
, GL_INVALID_ENUM
,
5108 "glInvalidateSubFramebuffer(invalid target %s)",
5109 _mesa_enum_to_string(target
));
5113 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
5114 x
, y
, width
, height
,
5115 "glInvalidateSubFramebuffer");
5120 _mesa_InvalidateNamedFramebufferSubData(GLuint framebuffer
,
5121 GLsizei numAttachments
,
5122 const GLenum
*attachments
,
5124 GLsizei width
, GLsizei height
)
5126 struct gl_framebuffer
*fb
;
5127 GET_CURRENT_CONTEXT(ctx
);
5129 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
5130 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
5131 * default draw framebuffer is affected."
5134 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
5135 "glInvalidateNamedFramebufferSubData");
5140 fb
= ctx
->WinSysDrawBuffer
;
5142 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
5143 x
, y
, width
, height
,
5144 "glInvalidateNamedFramebufferSubData");
5148 _mesa_InvalidateFramebuffer_no_error(GLenum target
, GLsizei numAttachments
,
5149 const GLenum
*attachments
)
5151 struct gl_framebuffer
*fb
;
5152 GET_CURRENT_CONTEXT(ctx
);
5154 fb
= get_framebuffer_target(ctx
, target
);
5158 discard_framebuffer(ctx
, fb
, numAttachments
, attachments
);
5163 _mesa_InvalidateFramebuffer(GLenum target
, GLsizei numAttachments
,
5164 const GLenum
*attachments
)
5166 struct gl_framebuffer
*fb
;
5167 GET_CURRENT_CONTEXT(ctx
);
5169 fb
= get_framebuffer_target(ctx
, target
);
5171 _mesa_error(ctx
, GL_INVALID_ENUM
,
5172 "glInvalidateFramebuffer(invalid target %s)",
5173 _mesa_enum_to_string(target
));
5177 /* The GL_ARB_invalidate_subdata spec says:
5181 * void InvalidateFramebuffer(enum target,
5182 * sizei numAttachments,
5183 * const enum *attachments);
5185 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
5186 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
5187 * <MAX_VIEWPORT_DIMS[1]> respectively."
5189 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
5191 ctx
->Const
.MaxViewportWidth
,
5192 ctx
->Const
.MaxViewportHeight
,
5193 "glInvalidateFramebuffer");
5195 discard_framebuffer(ctx
, fb
, numAttachments
, attachments
);
5200 _mesa_InvalidateNamedFramebufferData(GLuint framebuffer
,
5201 GLsizei numAttachments
,
5202 const GLenum
*attachments
)
5204 struct gl_framebuffer
*fb
;
5205 GET_CURRENT_CONTEXT(ctx
);
5207 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
5208 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
5209 * default draw framebuffer is affected."
5212 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
5213 "glInvalidateNamedFramebufferData");
5218 fb
= ctx
->WinSysDrawBuffer
;
5220 /* The GL_ARB_invalidate_subdata spec says:
5224 * void InvalidateFramebuffer(enum target,
5225 * sizei numAttachments,
5226 * const enum *attachments);
5228 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
5229 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
5230 * <MAX_VIEWPORT_DIMS[1]> respectively."
5232 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
5234 ctx
->Const
.MaxViewportWidth
,
5235 ctx
->Const
.MaxViewportHeight
,
5236 "glInvalidateNamedFramebufferData");
5241 _mesa_DiscardFramebufferEXT(GLenum target
, GLsizei numAttachments
,
5242 const GLenum
*attachments
)
5244 struct gl_framebuffer
*fb
;
5247 GET_CURRENT_CONTEXT(ctx
);
5249 fb
= get_framebuffer_target(ctx
, target
);
5251 _mesa_error(ctx
, GL_INVALID_ENUM
,
5252 "glDiscardFramebufferEXT(target %s)",
5253 _mesa_enum_to_string(target
));
5257 if (numAttachments
< 0) {
5258 _mesa_error(ctx
, GL_INVALID_VALUE
,
5259 "glDiscardFramebufferEXT(numAttachments < 0)");
5263 for (i
= 0; i
< numAttachments
; i
++) {
5264 switch (attachments
[i
]) {
5268 if (_mesa_is_user_fbo(fb
))
5271 case GL_COLOR_ATTACHMENT0
:
5272 case GL_DEPTH_ATTACHMENT
:
5273 case GL_STENCIL_ATTACHMENT
:
5274 if (_mesa_is_winsys_fbo(fb
))
5282 discard_framebuffer(ctx
, fb
, numAttachments
, attachments
);
5287 _mesa_error(ctx
, GL_INVALID_ENUM
,
5288 "glDiscardFramebufferEXT(attachment %s)",
5289 _mesa_enum_to_string(attachments
[i
]));
5293 sample_locations(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
5294 GLuint start
, GLsizei count
, const GLfloat
*v
, bool no_error
,
5300 if (!ctx
->Extensions
.ARB_sample_locations
) {
5301 _mesa_error(ctx
, GL_INVALID_OPERATION
,
5303 "(ARB_sample_locations not available)", name
);
5307 if (start
+ count
> MAX_SAMPLE_LOCATION_TABLE_SIZE
) {
5308 _mesa_error(ctx
, GL_INVALID_VALUE
,
5309 "%s(start+size > sample location table size)", name
);
5314 if (!fb
->SampleLocationTable
) {
5315 size_t size
= MAX_SAMPLE_LOCATION_TABLE_SIZE
* 2 * sizeof(GLfloat
);
5316 fb
->SampleLocationTable
= malloc(size
);
5317 if (!fb
->SampleLocationTable
) {
5318 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
5319 "Cannot allocate sample location table");
5322 for (i
= 0; i
< MAX_SAMPLE_LOCATION_TABLE_SIZE
* 2; i
++)
5323 fb
->SampleLocationTable
[i
] = 0.5f
;
5326 for (i
= 0; i
< count
* 2; i
++) {
5327 /* The ARB_sample_locations spec says:
5329 * Sample locations outside of [0,1] result in undefined
5332 * To simplify driver implementations, we choose to clamp to
5333 * [0,1] and change NaN into 0.5.
5335 if (isnan(v
[i
]) || v
[i
] < 0.0f
|| v
[i
] > 1.0f
) {
5336 static GLuint msg_id
= 0;
5337 static const char* msg
= "Invalid sample location specified";
5338 _mesa_debug_get_id(&msg_id
);
5340 _mesa_log_msg(ctx
, MESA_DEBUG_SOURCE_API
, MESA_DEBUG_TYPE_UNDEFINED
,
5341 msg_id
, MESA_DEBUG_SEVERITY_HIGH
, strlen(msg
), msg
);
5345 fb
->SampleLocationTable
[start
* 2 + i
] = 0.5f
;
5347 fb
->SampleLocationTable
[start
* 2 + i
] = CLAMP(v
[i
], 0.0f
, 1.0f
);
5350 if (fb
== ctx
->DrawBuffer
)
5351 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleLocations
;
5355 _mesa_FramebufferSampleLocationsfvARB(GLenum target
, GLuint start
,
5356 GLsizei count
, const GLfloat
*v
)
5358 struct gl_framebuffer
*fb
;
5360 GET_CURRENT_CONTEXT(ctx
);
5362 fb
= get_framebuffer_target(ctx
, target
);
5364 _mesa_error(ctx
, GL_INVALID_ENUM
,
5365 "glFramebufferSampleLocationsfvARB(target %s)",
5366 _mesa_enum_to_string(target
));
5370 sample_locations(ctx
, fb
, start
, count
, v
, false,
5371 "glFramebufferSampleLocationsfvARB");
5375 _mesa_NamedFramebufferSampleLocationsfvARB(GLuint framebuffer
, GLuint start
,
5376 GLsizei count
, const GLfloat
*v
)
5378 struct gl_framebuffer
*fb
;
5380 GET_CURRENT_CONTEXT(ctx
);
5383 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
5384 "glNamedFramebufferSampleLocationsfvARB");
5389 fb
= ctx
->WinSysDrawBuffer
;
5391 sample_locations(ctx
, fb
, start
, count
, v
, false,
5392 "glNamedFramebufferSampleLocationsfvARB");
5396 _mesa_FramebufferSampleLocationsfvARB_no_error(GLenum target
, GLuint start
,
5397 GLsizei count
, const GLfloat
*v
)
5399 GET_CURRENT_CONTEXT(ctx
);
5400 sample_locations(ctx
, get_framebuffer_target(ctx
, target
), start
,
5401 count
, v
, true, "glFramebufferSampleLocationsfvARB");
5405 _mesa_NamedFramebufferSampleLocationsfvARB_no_error(GLuint framebuffer
,
5406 GLuint start
, GLsizei count
,
5409 GET_CURRENT_CONTEXT(ctx
);
5410 sample_locations(ctx
, _mesa_lookup_framebuffer(ctx
, framebuffer
), start
,
5411 count
, v
, true, "glNamedFramebufferSampleLocationsfvARB");
5415 _mesa_EvaluateDepthValuesARB(void)
5417 GET_CURRENT_CONTEXT(ctx
);
5419 if (!ctx
->Extensions
.ARB_sample_locations
) {
5420 _mesa_error(ctx
, GL_INVALID_OPERATION
,
5421 "EvaluateDepthValuesARB not supported (neither "
5422 "ARB_sample_locations nor NV_sample_locations is available)");
5426 if (ctx
->Driver
.EvaluateDepthValues
)
5427 ctx
->Driver
.EvaluateDepthValues(ctx
);