2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 1999-2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
28 * GL_EXT/ARB_framebuffer_object extensions
41 #include "framebuffer.h"
42 #include "glformats.h"
45 #include "multisample.h"
47 #include "renderbuffer.h"
56 * None of the GL_EXT_framebuffer_object functions are compiled into
63 * When glGenRender/FramebuffersEXT() is called we insert pointers to
64 * these placeholder objects into the hash table.
65 * Later, when the object ID is first bound, we replace the placeholder
66 * with the real frame/renderbuffer.
68 static struct gl_framebuffer DummyFramebuffer
;
69 static struct gl_renderbuffer DummyRenderbuffer
;
71 /* We bind this framebuffer when applications pass a NULL
72 * drawable/surface in make current. */
73 static struct gl_framebuffer IncompleteFramebuffer
;
77 delete_dummy_renderbuffer(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
)
83 delete_dummy_framebuffer(struct gl_framebuffer
*fb
)
90 _mesa_init_fbobjects(struct gl_context
*ctx
)
92 mtx_init(&DummyFramebuffer
.Mutex
, mtx_plain
);
93 mtx_init(&DummyRenderbuffer
.Mutex
, mtx_plain
);
94 mtx_init(&IncompleteFramebuffer
.Mutex
, mtx_plain
);
95 DummyFramebuffer
.Delete
= delete_dummy_framebuffer
;
96 DummyRenderbuffer
.Delete
= delete_dummy_renderbuffer
;
97 IncompleteFramebuffer
.Delete
= delete_dummy_framebuffer
;
100 struct gl_framebuffer
*
101 _mesa_get_incomplete_framebuffer(void)
103 return &IncompleteFramebuffer
;
107 * Helper routine for getting a gl_renderbuffer.
109 struct gl_renderbuffer
*
110 _mesa_lookup_renderbuffer(struct gl_context
*ctx
, GLuint id
)
112 struct gl_renderbuffer
*rb
;
117 rb
= (struct gl_renderbuffer
*)
118 _mesa_HashLookup(ctx
->Shared
->RenderBuffers
, id
);
124 * A convenience function for direct state access that throws
125 * GL_INVALID_OPERATION if the renderbuffer doesn't exist.
127 struct gl_renderbuffer
*
128 _mesa_lookup_renderbuffer_err(struct gl_context
*ctx
, GLuint id
,
131 struct gl_renderbuffer
*rb
;
133 rb
= _mesa_lookup_renderbuffer(ctx
, id
);
134 if (!rb
|| rb
== &DummyRenderbuffer
) {
135 _mesa_error(ctx
, GL_INVALID_OPERATION
,
136 "%s(non-existent renderbuffer %u)", func
, id
);
145 * Helper routine for getting a gl_framebuffer.
147 struct gl_framebuffer
*
148 _mesa_lookup_framebuffer(struct gl_context
*ctx
, GLuint id
)
150 struct gl_framebuffer
*fb
;
155 fb
= (struct gl_framebuffer
*)
156 _mesa_HashLookup(ctx
->Shared
->FrameBuffers
, id
);
162 * A convenience function for direct state access that throws
163 * GL_INVALID_OPERATION if the framebuffer doesn't exist.
165 struct gl_framebuffer
*
166 _mesa_lookup_framebuffer_err(struct gl_context
*ctx
, GLuint id
,
169 struct gl_framebuffer
*fb
;
171 fb
= _mesa_lookup_framebuffer(ctx
, id
);
172 if (!fb
|| fb
== &DummyFramebuffer
) {
173 _mesa_error(ctx
, GL_INVALID_OPERATION
,
174 "%s(non-existent framebuffer %u)", func
, id
);
183 * Mark the given framebuffer as invalid. This will force the
184 * test for framebuffer completeness to be done before the framebuffer
188 invalidate_framebuffer(struct gl_framebuffer
*fb
)
190 fb
->_Status
= 0; /* "indeterminate" */
195 * Return the gl_framebuffer object which corresponds to the given
196 * framebuffer target, such as GL_DRAW_FRAMEBUFFER.
197 * Check support for GL_EXT_framebuffer_blit to determine if certain
199 * \return gl_framebuffer pointer or NULL if target is illegal
201 static struct gl_framebuffer
*
202 get_framebuffer_target(struct gl_context
*ctx
, GLenum target
)
204 bool have_fb_blit
= _mesa_is_gles3(ctx
) || _mesa_is_desktop_gl(ctx
);
206 case GL_DRAW_FRAMEBUFFER
:
207 return have_fb_blit
? ctx
->DrawBuffer
: NULL
;
208 case GL_READ_FRAMEBUFFER
:
209 return have_fb_blit
? ctx
->ReadBuffer
: NULL
;
210 case GL_FRAMEBUFFER_EXT
:
211 return ctx
->DrawBuffer
;
219 * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding
220 * gl_renderbuffer_attachment object.
221 * This function is only used for user-created FB objects, not the
222 * default / window-system FB object.
223 * If \p attachment is GL_DEPTH_STENCIL_ATTACHMENT, return a pointer to
224 * the depth buffer attachment point.
225 * Returns if the attachment is a GL_COLOR_ATTACHMENTm_EXT on
226 * is_color_attachment, because several callers would return different errors
227 * if they don't find the attachment.
229 static struct gl_renderbuffer_attachment
*
230 get_attachment(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
231 GLenum attachment
, bool *is_color_attachment
)
235 assert(_mesa_is_user_fbo(fb
));
237 if (is_color_attachment
)
238 *is_color_attachment
= false;
240 switch (attachment
) {
241 case GL_COLOR_ATTACHMENT0_EXT
:
242 case GL_COLOR_ATTACHMENT1_EXT
:
243 case GL_COLOR_ATTACHMENT2_EXT
:
244 case GL_COLOR_ATTACHMENT3_EXT
:
245 case GL_COLOR_ATTACHMENT4_EXT
:
246 case GL_COLOR_ATTACHMENT5_EXT
:
247 case GL_COLOR_ATTACHMENT6_EXT
:
248 case GL_COLOR_ATTACHMENT7_EXT
:
249 case GL_COLOR_ATTACHMENT8_EXT
:
250 case GL_COLOR_ATTACHMENT9_EXT
:
251 case GL_COLOR_ATTACHMENT10_EXT
:
252 case GL_COLOR_ATTACHMENT11_EXT
:
253 case GL_COLOR_ATTACHMENT12_EXT
:
254 case GL_COLOR_ATTACHMENT13_EXT
:
255 case GL_COLOR_ATTACHMENT14_EXT
:
256 case GL_COLOR_ATTACHMENT15_EXT
:
257 if (is_color_attachment
)
258 *is_color_attachment
= true;
259 /* Only OpenGL ES 1.x forbids color attachments other than
260 * GL_COLOR_ATTACHMENT0. For all other APIs the limit set by the
263 i
= attachment
- GL_COLOR_ATTACHMENT0_EXT
;
264 if (i
>= ctx
->Const
.MaxColorAttachments
265 || (i
> 0 && ctx
->API
== API_OPENGLES
)) {
268 return &fb
->Attachment
[BUFFER_COLOR0
+ i
];
269 case GL_DEPTH_STENCIL_ATTACHMENT
:
270 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles3(ctx
))
273 case GL_DEPTH_ATTACHMENT_EXT
:
274 return &fb
->Attachment
[BUFFER_DEPTH
];
275 case GL_STENCIL_ATTACHMENT_EXT
:
276 return &fb
->Attachment
[BUFFER_STENCIL
];
284 * As above, but only used for getting attachments of the default /
285 * window-system framebuffer (not user-created framebuffer objects).
287 static struct gl_renderbuffer_attachment
*
288 get_fb0_attachment(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
291 assert(_mesa_is_winsys_fbo(fb
));
293 if (_mesa_is_gles3(ctx
)) {
294 assert(attachment
== GL_BACK
||
295 attachment
== GL_DEPTH
||
296 attachment
== GL_STENCIL
);
297 switch (attachment
) {
299 /* Since there is no stereo rendering in ES 3.0, only return the
302 if (ctx
->DrawBuffer
->Visual
.doubleBufferMode
)
303 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
304 return &fb
->Attachment
[BUFFER_FRONT_LEFT
];
306 return &fb
->Attachment
[BUFFER_DEPTH
];
308 return &fb
->Attachment
[BUFFER_STENCIL
];
312 switch (attachment
) {
314 /* Front buffers can be allocated on the first use, but
315 * glGetFramebufferAttachmentParameteriv must work even if that
316 * allocation hasn't happened yet. In such case, use the back buffer,
317 * which should be the same.
319 if (fb
->Attachment
[BUFFER_FRONT_LEFT
].Type
== GL_NONE
)
320 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
322 return &fb
->Attachment
[BUFFER_FRONT_LEFT
];
325 if (fb
->Attachment
[BUFFER_FRONT_RIGHT
].Type
== GL_NONE
)
326 return &fb
->Attachment
[BUFFER_BACK_RIGHT
];
328 return &fb
->Attachment
[BUFFER_FRONT_RIGHT
];
330 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
332 return &fb
->Attachment
[BUFFER_BACK_RIGHT
];
334 if (fb
->Visual
.numAuxBuffers
== 1) {
335 return &fb
->Attachment
[BUFFER_AUX0
];
339 /* Page 336 (page 352 of the PDF) of the OpenGL 3.0 spec says:
341 * "If the default framebuffer is bound to target, then attachment must
342 * be one of FRONT LEFT, FRONT RIGHT, BACK LEFT, BACK RIGHT, or AUXi,
343 * identifying a color buffer; DEPTH, identifying the depth buffer; or
344 * STENCIL, identifying the stencil buffer."
346 * Revision #34 of the ARB_framebuffer_object spec has essentially the same
347 * language. However, revision #33 of the ARB_framebuffer_object spec
350 * "If the default framebuffer is bound to <target>, then <attachment>
351 * must be one of FRONT_LEFT, FRONT_RIGHT, BACK_LEFT, BACK_RIGHT, AUXi,
352 * DEPTH_BUFFER, or STENCIL_BUFFER, identifying a color buffer, the
353 * depth buffer, or the stencil buffer, and <pname> may be
354 * FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE or
355 * FRAMEBUFFER_ATTACHMENT_OBJECT_NAME."
357 * The enum values for DEPTH_BUFFER and STENCIL_BUFFER have been removed
358 * from glext.h, so shipping apps should not use those values.
360 * Note that neither EXT_framebuffer_object nor OES_framebuffer_object
361 * support queries of the window system FBO.
364 return &fb
->Attachment
[BUFFER_DEPTH
];
366 return &fb
->Attachment
[BUFFER_STENCIL
];
375 * Remove any texture or renderbuffer attached to the given attachment
376 * point. Update reference counts, etc.
379 remove_attachment(struct gl_context
*ctx
,
380 struct gl_renderbuffer_attachment
*att
)
382 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
384 /* tell driver that we're done rendering to this texture. */
385 if (rb
&& rb
->NeedsFinishRenderTexture
)
386 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
388 if (att
->Type
== GL_TEXTURE
) {
389 assert(att
->Texture
);
390 _mesa_reference_texobj(&att
->Texture
, NULL
); /* unbind */
391 assert(!att
->Texture
);
393 if (att
->Type
== GL_TEXTURE
|| att
->Type
== GL_RENDERBUFFER_EXT
) {
394 assert(!att
->Texture
);
395 _mesa_reference_renderbuffer(&att
->Renderbuffer
, NULL
); /* unbind */
396 assert(!att
->Renderbuffer
);
399 att
->Complete
= GL_TRUE
;
403 * Verify a couple error conditions that will lead to an incomplete FBO and
404 * may cause problems for the driver's RenderTexture path.
407 driver_RenderTexture_is_safe(const struct gl_renderbuffer_attachment
*att
)
409 const struct gl_texture_image
*const texImage
=
410 att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
413 texImage
->Width
== 0 || texImage
->Height
== 0 || texImage
->Depth
== 0)
416 if ((texImage
->TexObject
->Target
== GL_TEXTURE_1D_ARRAY
417 && att
->Zoffset
>= texImage
->Height
)
418 || (texImage
->TexObject
->Target
!= GL_TEXTURE_1D_ARRAY
419 && att
->Zoffset
>= texImage
->Depth
))
426 * Create a renderbuffer which will be set up by the driver to wrap the
427 * texture image slice.
429 * By using a gl_renderbuffer (like user-allocated renderbuffers), drivers get
430 * to share most of their framebuffer rendering code between winsys,
431 * renderbuffer, and texture attachments.
433 * The allocated renderbuffer uses a non-zero Name so that drivers can check
434 * it for determining vertical orientation, but we use ~0 to make it fairly
435 * unambiguous with actual user (non-texture) renderbuffers.
438 _mesa_update_texture_renderbuffer(struct gl_context
*ctx
,
439 struct gl_framebuffer
*fb
,
440 struct gl_renderbuffer_attachment
*att
)
442 struct gl_texture_image
*texImage
;
443 struct gl_renderbuffer
*rb
;
445 texImage
= att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
447 rb
= att
->Renderbuffer
;
449 rb
= ctx
->Driver
.NewRenderbuffer(ctx
, ~0);
451 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glFramebufferTexture()");
454 att
->Renderbuffer
= rb
;
456 /* This can't get called on a texture renderbuffer, so set it to NULL
457 * for clarity compared to user renderbuffers.
459 rb
->AllocStorage
= NULL
;
461 rb
->NeedsFinishRenderTexture
= ctx
->Driver
.FinishRenderTexture
!= NULL
;
467 rb
->_BaseFormat
= texImage
->_BaseFormat
;
468 rb
->Format
= texImage
->TexFormat
;
469 rb
->InternalFormat
= texImage
->InternalFormat
;
470 rb
->Width
= texImage
->Width2
;
471 rb
->Height
= texImage
->Height2
;
472 rb
->Depth
= texImage
->Depth2
;
473 rb
->NumSamples
= texImage
->NumSamples
;
474 rb
->TexImage
= texImage
;
476 if (driver_RenderTexture_is_safe(att
))
477 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
481 * Bind a texture object to an attachment point.
482 * The previous binding, if any, will be removed first.
485 set_texture_attachment(struct gl_context
*ctx
,
486 struct gl_framebuffer
*fb
,
487 struct gl_renderbuffer_attachment
*att
,
488 struct gl_texture_object
*texObj
,
489 GLenum texTarget
, GLuint level
, GLuint layer
,
492 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
494 if (rb
&& rb
->NeedsFinishRenderTexture
)
495 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
497 if (att
->Texture
== texObj
) {
498 /* re-attaching same texture */
499 assert(att
->Type
== GL_TEXTURE
);
503 remove_attachment(ctx
, att
);
504 att
->Type
= GL_TEXTURE
;
505 assert(!att
->Texture
);
506 _mesa_reference_texobj(&att
->Texture
, texObj
);
508 invalidate_framebuffer(fb
);
510 /* always update these fields */
511 att
->TextureLevel
= level
;
512 att
->CubeMapFace
= _mesa_tex_target_to_face(texTarget
);
513 att
->Zoffset
= layer
;
514 att
->Layered
= layered
;
515 att
->Complete
= GL_FALSE
;
517 _mesa_update_texture_renderbuffer(ctx
, fb
, att
);
522 * Bind a renderbuffer to an attachment point.
523 * The previous binding, if any, will be removed first.
526 set_renderbuffer_attachment(struct gl_context
*ctx
,
527 struct gl_renderbuffer_attachment
*att
,
528 struct gl_renderbuffer
*rb
)
530 /* XXX check if re-doing same attachment, exit early */
531 remove_attachment(ctx
, att
);
532 att
->Type
= GL_RENDERBUFFER_EXT
;
533 att
->Texture
= NULL
; /* just to be safe */
534 att
->Layered
= GL_FALSE
;
535 att
->Complete
= GL_FALSE
;
536 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
541 * Fallback for ctx->Driver.FramebufferRenderbuffer()
542 * Attach a renderbuffer object to a framebuffer object.
545 _mesa_FramebufferRenderbuffer_sw(struct gl_context
*ctx
,
546 struct gl_framebuffer
*fb
,
548 struct gl_renderbuffer
*rb
)
550 struct gl_renderbuffer_attachment
*att
;
552 mtx_lock(&fb
->Mutex
);
554 att
= get_attachment(ctx
, fb
, attachment
, NULL
);
557 set_renderbuffer_attachment(ctx
, att
, rb
);
558 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
559 /* do stencil attachment here (depth already done above) */
560 att
= get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
, NULL
);
562 set_renderbuffer_attachment(ctx
, att
, rb
);
564 rb
->AttachedAnytime
= GL_TRUE
;
567 remove_attachment(ctx
, att
);
568 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
569 /* detach stencil (depth was detached above) */
570 att
= get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
, NULL
);
572 remove_attachment(ctx
, att
);
576 invalidate_framebuffer(fb
);
578 mtx_unlock(&fb
->Mutex
);
583 * Fallback for ctx->Driver.ValidateFramebuffer()
584 * Check if the renderbuffer's formats are supported by the software
586 * Drivers should probably override this.
589 _mesa_validate_framebuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
592 for (buf
= 0; buf
< BUFFER_COUNT
; buf
++) {
593 const struct gl_renderbuffer
*rb
= fb
->Attachment
[buf
].Renderbuffer
;
595 switch (rb
->_BaseFormat
) {
597 case GL_LUMINANCE_ALPHA
:
602 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
606 switch (rb
->Format
) {
607 /* XXX This list is likely incomplete. */
608 case MESA_FORMAT_R9G9B9E5_FLOAT
:
609 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
612 /* render buffer format is supported by software rendering */
621 * Return true if the framebuffer has a combined depth/stencil
622 * renderbuffer attached.
625 _mesa_has_depthstencil_combined(const struct gl_framebuffer
*fb
)
627 const struct gl_renderbuffer_attachment
*depth
=
628 &fb
->Attachment
[BUFFER_DEPTH
];
629 const struct gl_renderbuffer_attachment
*stencil
=
630 &fb
->Attachment
[BUFFER_STENCIL
];
632 if (depth
->Type
== stencil
->Type
) {
633 if (depth
->Type
== GL_RENDERBUFFER_EXT
&&
634 depth
->Renderbuffer
== stencil
->Renderbuffer
)
637 if (depth
->Type
== GL_TEXTURE
&&
638 depth
->Texture
== stencil
->Texture
)
650 att_incomplete(const char *msg
)
652 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
653 _mesa_debug(NULL
, "attachment incomplete: %s\n", msg
);
662 fbo_incomplete(struct gl_context
*ctx
, const char *msg
, int index
)
664 static GLuint msg_id
;
666 _mesa_gl_debug(ctx
, &msg_id
,
667 MESA_DEBUG_SOURCE_API
,
668 MESA_DEBUG_TYPE_OTHER
,
669 MESA_DEBUG_SEVERITY_MEDIUM
,
670 "FBO incomplete: %s [%d]\n", msg
, index
);
672 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
673 _mesa_debug(NULL
, "FBO Incomplete: %s [%d]\n", msg
, index
);
679 * Is the given base format a legal format for a color renderbuffer?
682 _mesa_is_legal_color_format(const struct gl_context
*ctx
, GLenum baseFormat
)
684 switch (baseFormat
) {
689 case GL_LUMINANCE_ALPHA
:
692 return ctx
->API
== API_OPENGL_COMPAT
&&
693 ctx
->Extensions
.ARB_framebuffer_object
;
696 return ctx
->Extensions
.ARB_texture_rg
;
704 * Is the given base format a legal format for a color renderbuffer?
707 is_format_color_renderable(const struct gl_context
*ctx
, mesa_format format
,
708 GLenum internalFormat
)
710 const GLenum baseFormat
=
711 _mesa_get_format_base_format(format
);
714 valid
= _mesa_is_legal_color_format(ctx
, baseFormat
);
715 if (!valid
|| _mesa_is_desktop_gl(ctx
)) {
719 /* Reject additional cases for GLES */
720 switch (internalFormat
) {
740 if (format
== MESA_FORMAT_B10G10R10A2_UNORM
&&
741 internalFormat
!= GL_RGB10_A2
) {
750 * Is the given base format a legal format for a depth/stencil renderbuffer?
753 is_legal_depth_format(const struct gl_context
*ctx
, GLenum baseFormat
)
755 switch (baseFormat
) {
756 case GL_DEPTH_COMPONENT
:
757 case GL_DEPTH_STENCIL_EXT
:
766 * Test if an attachment point is complete and update its Complete field.
767 * \param format if GL_COLOR, this is a color attachment point,
768 * if GL_DEPTH, this is a depth component attachment point,
769 * if GL_STENCIL, this is a stencil component attachment point.
772 test_attachment_completeness(const struct gl_context
*ctx
, GLenum format
,
773 struct gl_renderbuffer_attachment
*att
)
775 assert(format
== GL_COLOR
|| format
== GL_DEPTH
|| format
== GL_STENCIL
);
777 /* assume complete */
778 att
->Complete
= GL_TRUE
;
780 /* Look for reasons why the attachment might be incomplete */
781 if (att
->Type
== GL_TEXTURE
) {
782 const struct gl_texture_object
*texObj
= att
->Texture
;
783 struct gl_texture_image
*texImage
;
787 att_incomplete("no texobj");
788 att
->Complete
= GL_FALSE
;
792 texImage
= texObj
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
794 att_incomplete("no teximage");
795 att
->Complete
= GL_FALSE
;
798 if (texImage
->Width
< 1 || texImage
->Height
< 1) {
799 att_incomplete("teximage width/height=0");
800 att
->Complete
= GL_FALSE
;
804 switch (texObj
->Target
) {
806 if (att
->Zoffset
>= texImage
->Depth
) {
807 att_incomplete("bad z offset");
808 att
->Complete
= GL_FALSE
;
812 case GL_TEXTURE_1D_ARRAY
:
813 if (att
->Zoffset
>= texImage
->Height
) {
814 att_incomplete("bad 1D-array layer");
815 att
->Complete
= GL_FALSE
;
819 case GL_TEXTURE_2D_ARRAY
:
820 if (att
->Zoffset
>= texImage
->Depth
) {
821 att_incomplete("bad 2D-array layer");
822 att
->Complete
= GL_FALSE
;
826 case GL_TEXTURE_CUBE_MAP_ARRAY
:
827 if (att
->Zoffset
>= texImage
->Depth
) {
828 att_incomplete("bad cube-array layer");
829 att
->Complete
= GL_FALSE
;
835 baseFormat
= texImage
->_BaseFormat
;
837 if (format
== GL_COLOR
) {
838 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
839 att_incomplete("bad format");
840 att
->Complete
= GL_FALSE
;
843 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
844 att_incomplete("compressed internalformat");
845 att
->Complete
= GL_FALSE
;
849 /* OES_texture_float allows creation and use of floating point
850 * textures with GL_FLOAT, GL_HALF_FLOAT but it does not allow
851 * these textures to be used as a render target, this is done via
852 * GL_EXT_color_buffer(_half)_float with set of new sized types.
854 if (_mesa_is_gles(ctx
) && (texImage
->TexObject
->_IsFloat
||
855 texImage
->TexObject
->_IsHalfFloat
)) {
856 att_incomplete("bad internal format");
857 att
->Complete
= GL_FALSE
;
861 else if (format
== GL_DEPTH
) {
862 if (baseFormat
== GL_DEPTH_COMPONENT
) {
865 else if (ctx
->Extensions
.ARB_depth_texture
&&
866 baseFormat
== GL_DEPTH_STENCIL
) {
870 att
->Complete
= GL_FALSE
;
871 att_incomplete("bad depth format");
876 assert(format
== GL_STENCIL
);
877 if (ctx
->Extensions
.ARB_depth_texture
&&
878 baseFormat
== GL_DEPTH_STENCIL
) {
880 } else if (ctx
->Extensions
.ARB_texture_stencil8
&&
881 baseFormat
== GL_STENCIL_INDEX
) {
884 /* no such thing as stencil-only textures */
885 att_incomplete("illegal stencil texture");
886 att
->Complete
= GL_FALSE
;
891 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
892 const GLenum baseFormat
= att
->Renderbuffer
->_BaseFormat
;
894 assert(att
->Renderbuffer
);
895 if (!att
->Renderbuffer
->InternalFormat
||
896 att
->Renderbuffer
->Width
< 1 ||
897 att
->Renderbuffer
->Height
< 1) {
898 att_incomplete("0x0 renderbuffer");
899 att
->Complete
= GL_FALSE
;
902 if (format
== GL_COLOR
) {
903 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
904 att_incomplete("bad renderbuffer color format");
905 att
->Complete
= GL_FALSE
;
909 else if (format
== GL_DEPTH
) {
910 if (baseFormat
== GL_DEPTH_COMPONENT
) {
913 else if (baseFormat
== GL_DEPTH_STENCIL
) {
917 att_incomplete("bad renderbuffer depth format");
918 att
->Complete
= GL_FALSE
;
923 assert(format
== GL_STENCIL
);
924 if (baseFormat
== GL_STENCIL_INDEX
||
925 baseFormat
== GL_DEPTH_STENCIL
) {
929 att
->Complete
= GL_FALSE
;
930 att_incomplete("bad renderbuffer stencil format");
936 assert(att
->Type
== GL_NONE
);
944 * Test if the given framebuffer object is complete and update its
945 * Status field with the results.
946 * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
947 * driver to make hardware-specific validation/completeness checks.
948 * Also update the framebuffer's Width and Height fields if the
949 * framebuffer is complete.
952 _mesa_test_framebuffer_completeness(struct gl_context
*ctx
,
953 struct gl_framebuffer
*fb
)
956 GLenum intFormat
= GL_NONE
; /* color buffers' internal format */
957 GLuint minWidth
= ~0, minHeight
= ~0, maxWidth
= 0, maxHeight
= 0;
958 GLint numSamples
= -1;
959 GLint fixedSampleLocations
= -1;
962 /* Covers max_layer_count, is_layered, and layer_tex_target */
963 bool layer_info_valid
= false;
964 GLuint max_layer_count
= 0, att_layer_count
;
965 bool is_layered
= false;
966 GLenum layer_tex_target
= 0;
967 bool has_depth_attachment
= false;
968 bool has_stencil_attachment
= false;
970 assert(_mesa_is_user_fbo(fb
));
972 /* we're changing framebuffer fields here */
973 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
978 fb
->_AllColorBuffersFixedPoint
= GL_TRUE
;
979 fb
->_HasSNormOrFloatColorBuffer
= GL_FALSE
;
980 fb
->_HasAttachments
= true;
981 fb
->_IntegerBuffers
= 0;
983 /* Start at -2 to more easily loop over all attachment points.
988 for (i
= -2; i
< (GLint
) ctx
->Const
.MaxColorAttachments
; i
++) {
989 struct gl_renderbuffer_attachment
*att
;
991 mesa_format attFormat
;
992 GLenum att_tex_target
= GL_NONE
;
995 * XXX for ARB_fbo, only check color buffers that are named by
996 * GL_READ_BUFFER and GL_DRAW_BUFFERi.
999 /* check for attachment completeness
1002 att
= &fb
->Attachment
[BUFFER_DEPTH
];
1003 test_attachment_completeness(ctx
, GL_DEPTH
, att
);
1004 if (!att
->Complete
) {
1005 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1006 fbo_incomplete(ctx
, "depth attachment incomplete", -1);
1008 } else if (att
->Type
!= GL_NONE
) {
1009 has_depth_attachment
= true;
1013 att
= &fb
->Attachment
[BUFFER_STENCIL
];
1014 test_attachment_completeness(ctx
, GL_STENCIL
, att
);
1015 if (!att
->Complete
) {
1016 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1017 fbo_incomplete(ctx
, "stencil attachment incomplete", -1);
1019 } else if (att
->Type
!= GL_NONE
) {
1020 has_stencil_attachment
= true;
1024 att
= &fb
->Attachment
[BUFFER_COLOR0
+ i
];
1025 test_attachment_completeness(ctx
, GL_COLOR
, att
);
1026 if (!att
->Complete
) {
1027 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1028 fbo_incomplete(ctx
, "color attachment incomplete", i
);
1033 /* get width, height, format of the renderbuffer/texture
1035 if (att
->Type
== GL_TEXTURE
) {
1036 const struct gl_texture_image
*texImg
= att
->Renderbuffer
->TexImage
;
1037 att_tex_target
= att
->Texture
->Target
;
1038 minWidth
= MIN2(minWidth
, texImg
->Width
);
1039 maxWidth
= MAX2(maxWidth
, texImg
->Width
);
1040 minHeight
= MIN2(minHeight
, texImg
->Height
);
1041 maxHeight
= MAX2(maxHeight
, texImg
->Height
);
1042 f
= texImg
->_BaseFormat
;
1043 attFormat
= texImg
->TexFormat
;
1046 if (!is_format_color_renderable(ctx
, attFormat
,
1047 texImg
->InternalFormat
) &&
1048 !is_legal_depth_format(ctx
, f
) &&
1049 f
!= GL_STENCIL_INDEX
) {
1050 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT
;
1051 fbo_incomplete(ctx
, "texture attachment incomplete", -1);
1056 numSamples
= texImg
->NumSamples
;
1057 else if (numSamples
!= texImg
->NumSamples
) {
1058 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1059 fbo_incomplete(ctx
, "inconsistent sample count", -1);
1063 if (fixedSampleLocations
< 0)
1064 fixedSampleLocations
= texImg
->FixedSampleLocations
;
1065 else if (fixedSampleLocations
!= texImg
->FixedSampleLocations
) {
1066 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1067 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1071 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
1072 minWidth
= MIN2(minWidth
, att
->Renderbuffer
->Width
);
1073 maxWidth
= MAX2(minWidth
, att
->Renderbuffer
->Width
);
1074 minHeight
= MIN2(minHeight
, att
->Renderbuffer
->Height
);
1075 maxHeight
= MAX2(minHeight
, att
->Renderbuffer
->Height
);
1076 f
= att
->Renderbuffer
->InternalFormat
;
1077 attFormat
= att
->Renderbuffer
->Format
;
1081 numSamples
= att
->Renderbuffer
->NumSamples
;
1082 else if (numSamples
!= att
->Renderbuffer
->NumSamples
) {
1083 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1084 fbo_incomplete(ctx
, "inconsistent sample count", -1);
1088 /* RENDERBUFFER has fixedSampleLocations implicitly true */
1089 if (fixedSampleLocations
< 0)
1090 fixedSampleLocations
= GL_TRUE
;
1091 else if (fixedSampleLocations
!= GL_TRUE
) {
1092 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1093 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1098 assert(att
->Type
== GL_NONE
);
1102 /* Update flags describing color buffer datatypes */
1104 GLenum type
= _mesa_get_format_datatype(attFormat
);
1106 /* check if integer color */
1107 if (_mesa_is_format_integer_color(attFormat
))
1108 fb
->_IntegerBuffers
|= (1 << i
);
1110 fb
->_AllColorBuffersFixedPoint
=
1111 fb
->_AllColorBuffersFixedPoint
&&
1112 (type
== GL_UNSIGNED_NORMALIZED
|| type
== GL_SIGNED_NORMALIZED
);
1114 fb
->_HasSNormOrFloatColorBuffer
=
1115 fb
->_HasSNormOrFloatColorBuffer
||
1116 type
== GL_SIGNED_NORMALIZED
|| type
== GL_FLOAT
;
1119 /* Error-check width, height, format */
1120 if (numImages
== 1) {
1127 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
1128 /* check that width, height, format are same */
1129 if (minWidth
!= maxWidth
|| minHeight
!= maxHeight
) {
1130 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
;
1131 fbo_incomplete(ctx
, "width or height mismatch", -1);
1134 /* check that all color buffers are the same format */
1135 if (intFormat
!= GL_NONE
&& f
!= intFormat
) {
1136 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
1137 fbo_incomplete(ctx
, "format mismatch", -1);
1143 /* Check that the format is valid. (MESA_FORMAT_NONE means unsupported)
1145 if (att
->Type
== GL_RENDERBUFFER
&&
1146 att
->Renderbuffer
->Format
== MESA_FORMAT_NONE
) {
1147 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1148 fbo_incomplete(ctx
, "unsupported renderbuffer format", i
);
1152 /* Check that layered rendering is consistent. */
1154 if (att_tex_target
== GL_TEXTURE_CUBE_MAP
)
1155 att_layer_count
= 6;
1156 else if (att_tex_target
== GL_TEXTURE_1D_ARRAY
)
1157 att_layer_count
= att
->Renderbuffer
->Height
;
1159 att_layer_count
= att
->Renderbuffer
->Depth
;
1161 att_layer_count
= 0;
1163 if (!layer_info_valid
) {
1164 is_layered
= att
->Layered
;
1165 max_layer_count
= att_layer_count
;
1166 layer_tex_target
= att_tex_target
;
1167 layer_info_valid
= true;
1168 } else if (max_layer_count
> 0 && layer_tex_target
!= att_tex_target
) {
1169 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1170 fbo_incomplete(ctx
, "layered framebuffer has mismatched targets", i
);
1172 } else if (is_layered
!= att
->Layered
) {
1173 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1175 "framebuffer attachment layer mode is inconsistent",
1178 } else if (att_layer_count
> max_layer_count
) {
1179 max_layer_count
= att_layer_count
;
1183 * The extension GL_ARB_framebuffer_no_attachments places additional
1184 * requirement on each attachment. Those additional requirements are
1185 * tighter that those of previous versions of GL. In interest of better
1186 * compatibility, we will not enforce these restrictions. For the record
1187 * those additional restrictions are quoted below:
1189 * "The width and height of image are greater than zero and less than or
1190 * equal to the values of the implementation-dependent limits
1191 * MAX_FRAMEBUFFER_WIDTH and MAX_FRAMEBUFFER_HEIGHT, respectively."
1193 * "If <image> is a three-dimensional texture or a one- or two-dimensional
1194 * array texture and the attachment is layered, the depth or layer count
1195 * of the texture is less than or equal to the implementation-dependent
1196 * limit MAX_FRAMEBUFFER_LAYERS."
1198 * "If image has multiple samples, its sample count is less than or equal
1199 * to the value of the implementation-dependent limit
1200 * MAX_FRAMEBUFFER_SAMPLES."
1202 * The same requirements are also in place for GL 4.5,
1203 * Section 9.4.1 "Framebuffer Attachment Completeness", pg 310-311
1207 fb
->MaxNumLayers
= max_layer_count
;
1209 if (numImages
== 0) {
1210 fb
->_HasAttachments
= false;
1212 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
1213 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1214 fbo_incomplete(ctx
, "no attachments", -1);
1218 if (fb
->DefaultGeometry
.Width
== 0 || fb
->DefaultGeometry
.Height
== 0) {
1219 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1220 fbo_incomplete(ctx
, "no attachments and default width or height is 0", -1);
1225 if (_mesa_is_desktop_gl(ctx
) && !ctx
->Extensions
.ARB_ES2_compatibility
) {
1226 /* Check that all DrawBuffers are present */
1227 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
1228 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
1229 const struct gl_renderbuffer_attachment
*att
1230 = get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
], NULL
);
1232 if (att
->Type
== GL_NONE
) {
1233 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
1234 fbo_incomplete(ctx
, "missing drawbuffer", j
);
1240 /* Check that the ReadBuffer is present */
1241 if (fb
->ColorReadBuffer
!= GL_NONE
) {
1242 const struct gl_renderbuffer_attachment
*att
1243 = get_attachment(ctx
, fb
, fb
->ColorReadBuffer
, NULL
);
1245 if (att
->Type
== GL_NONE
) {
1246 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
1247 fbo_incomplete(ctx
, "missing readbuffer", -1);
1253 /* The OpenGL ES3 spec, in chapter 9.4. FRAMEBUFFER COMPLETENESS, says:
1255 * "Depth and stencil attachments, if present, are the same image."
1257 * This restriction is not present in the OpenGL ES2 spec.
1259 if (_mesa_is_gles3(ctx
) &&
1260 has_stencil_attachment
&& has_depth_attachment
&&
1261 !_mesa_has_depthstencil_combined(fb
)) {
1262 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1263 fbo_incomplete(ctx
, "Depth and stencil attachments must be the same image", -1);
1267 /* Provisionally set status = COMPLETE ... */
1268 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
1270 /* ... but the driver may say the FB is incomplete.
1271 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
1274 if (ctx
->Driver
.ValidateFramebuffer
) {
1275 ctx
->Driver
.ValidateFramebuffer(ctx
, fb
);
1276 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1277 fbo_incomplete(ctx
, "driver marked FBO as incomplete", -1);
1283 * Note that if ARB_framebuffer_object is supported and the attached
1284 * renderbuffers/textures are different sizes, the framebuffer
1285 * width/height will be set to the smallest width/height.
1287 if (numImages
!= 0) {
1288 fb
->Width
= minWidth
;
1289 fb
->Height
= minHeight
;
1292 /* finally, update the visual info for the framebuffer */
1293 _mesa_update_framebuffer_visual(ctx
, fb
);
1297 GLboolean GLAPIENTRY
1298 _mesa_IsRenderbuffer(GLuint renderbuffer
)
1300 struct gl_renderbuffer
*rb
;
1302 GET_CURRENT_CONTEXT(ctx
);
1304 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1306 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1307 return rb
!= NULL
&& rb
!= &DummyRenderbuffer
;
1311 static struct gl_renderbuffer
*
1312 allocate_renderbuffer_locked(struct gl_context
*ctx
, GLuint renderbuffer
,
1315 struct gl_renderbuffer
*newRb
;
1317 /* create new renderbuffer object */
1318 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
1320 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
1323 assert(newRb
->AllocStorage
);
1324 _mesa_HashInsertLocked(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
1331 bind_renderbuffer(GLenum target
, GLuint renderbuffer
, bool allow_user_names
)
1333 struct gl_renderbuffer
*newRb
;
1334 GET_CURRENT_CONTEXT(ctx
);
1336 if (target
!= GL_RENDERBUFFER_EXT
) {
1337 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindRenderbufferEXT(target)");
1341 /* No need to flush here since the render buffer binding has no
1342 * effect on rendering state.
1346 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1347 if (newRb
== &DummyRenderbuffer
) {
1348 /* ID was reserved, but no real renderbuffer object made yet */
1351 else if (!newRb
&& !allow_user_names
) {
1352 /* All RB IDs must be Gen'd */
1353 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindRenderbuffer(buffer)");
1358 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
1359 newRb
= allocate_renderbuffer_locked(ctx
, renderbuffer
,
1360 "glBindRenderbufferEXT");
1361 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
1368 assert(newRb
!= &DummyRenderbuffer
);
1370 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
1374 _mesa_BindRenderbuffer(GLenum target
, GLuint renderbuffer
)
1376 GET_CURRENT_CONTEXT(ctx
);
1378 /* OpenGL ES glBindRenderbuffer and glBindRenderbufferOES use this same
1379 * entry point, but they allow the use of user-generated names.
1381 bind_renderbuffer(target
, renderbuffer
, _mesa_is_gles(ctx
));
1385 _mesa_BindRenderbufferEXT(GLenum target
, GLuint renderbuffer
)
1387 /* This function should not be in the dispatch table for core profile /
1388 * OpenGL 3.1, so execution should never get here in those cases -- no
1389 * need for an explicit test.
1391 bind_renderbuffer(target
, renderbuffer
, true);
1395 * ARB_framebuffer_no_attachment - Application passes requested param's
1396 * here. NOTE: NumSamples requested need not be _NumSamples which is
1397 * what the hw supports.
1400 framebuffer_parameteri(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1401 GLenum pname
, GLint param
, const char *func
)
1404 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1405 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferWidth
)
1406 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1408 fb
->DefaultGeometry
.Width
= param
;
1410 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1411 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferHeight
)
1412 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1414 fb
->DefaultGeometry
.Height
= param
;
1416 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1418 * According to the OpenGL ES 3.1 specification section 9.2.1, the
1419 * GL_FRAMEBUFFER_DEFAULT_LAYERS parameter name is not supported.
1421 if (_mesa_is_gles31(ctx
) && !ctx
->Extensions
.OES_geometry_shader
) {
1422 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1425 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferLayers
)
1426 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1428 fb
->DefaultGeometry
.Layers
= param
;
1430 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1431 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferSamples
)
1432 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1434 fb
->DefaultGeometry
.NumSamples
= param
;
1436 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1437 fb
->DefaultGeometry
.FixedSampleLocations
= param
;
1440 _mesa_error(ctx
, GL_INVALID_ENUM
,
1441 "%s(pname=0x%x)", func
, pname
);
1444 invalidate_framebuffer(fb
);
1445 ctx
->NewState
|= _NEW_BUFFERS
;
1449 _mesa_FramebufferParameteri(GLenum target
, GLenum pname
, GLint param
)
1451 GET_CURRENT_CONTEXT(ctx
);
1452 struct gl_framebuffer
*fb
;
1454 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
1455 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1456 "glFramebufferParameteriv not supported "
1457 "(ARB_framebuffer_no_attachments not implemented)");
1461 fb
= get_framebuffer_target(ctx
, target
);
1463 _mesa_error(ctx
, GL_INVALID_ENUM
,
1464 "glFramebufferParameteri(target=0x%x)", target
);
1468 /* check framebuffer binding */
1469 if (_mesa_is_winsys_fbo(fb
)) {
1470 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1471 "glFramebufferParameteri");
1475 framebuffer_parameteri(ctx
, fb
, pname
, param
, "glFramebufferParameteri");
1479 _pname_valid_for_default_framebuffer(struct gl_context
*ctx
,
1482 if (!_mesa_is_desktop_gl(ctx
))
1486 case GL_DOUBLEBUFFER
:
1487 case GL_IMPLEMENTATION_COLOR_READ_FORMAT
:
1488 case GL_IMPLEMENTATION_COLOR_READ_TYPE
:
1490 case GL_SAMPLE_BUFFERS
:
1499 get_framebuffer_parameteriv(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1500 GLenum pname
, GLint
*params
, const char *func
)
1502 /* From OpenGL 4.5 spec, section 9.2.3 "Framebuffer Object Queries:
1504 * "An INVALID_OPERATION error is generated by GetFramebufferParameteriv
1505 * if the default framebuffer is bound to target and pname is not one
1506 * of the accepted values from table 23.73, other than
1509 * For OpenGL ES, using default framebuffer still raises INVALID_OPERATION
1512 if (_mesa_is_winsys_fbo(fb
) &&
1513 !_pname_valid_for_default_framebuffer(ctx
, pname
)) {
1514 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1515 "%s(invalid pname=0x%x for default framebuffer)", func
, pname
);
1520 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1521 *params
= fb
->DefaultGeometry
.Width
;
1523 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1524 *params
= fb
->DefaultGeometry
.Height
;
1526 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1528 * According to the OpenGL ES 3.1 specification section 9.2.3, the
1529 * GL_FRAMEBUFFER_LAYERS parameter name is not supported.
1531 if (_mesa_is_gles31(ctx
) && !ctx
->Extensions
.OES_geometry_shader
) {
1532 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1535 *params
= fb
->DefaultGeometry
.Layers
;
1537 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1538 *params
= fb
->DefaultGeometry
.NumSamples
;
1540 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1541 *params
= fb
->DefaultGeometry
.FixedSampleLocations
;
1543 case GL_DOUBLEBUFFER
:
1544 *params
= fb
->Visual
.doubleBufferMode
;
1546 case GL_IMPLEMENTATION_COLOR_READ_FORMAT
:
1547 *params
= _mesa_get_color_read_format(ctx
, fb
, func
);
1549 case GL_IMPLEMENTATION_COLOR_READ_TYPE
:
1550 *params
= _mesa_get_color_read_type(ctx
, fb
, func
);
1553 *params
= _mesa_geometric_samples(fb
);
1555 case GL_SAMPLE_BUFFERS
:
1556 *params
= _mesa_geometric_samples(fb
) > 0;
1559 *params
= fb
->Visual
.stereoMode
;
1562 _mesa_error(ctx
, GL_INVALID_ENUM
,
1563 "%s(pname=0x%x)", func
, pname
);
1568 _mesa_GetFramebufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
1570 GET_CURRENT_CONTEXT(ctx
);
1571 struct gl_framebuffer
*fb
;
1573 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
1574 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1575 "glGetFramebufferParameteriv not supported "
1576 "(ARB_framebuffer_no_attachments not implemented)");
1580 fb
= get_framebuffer_target(ctx
, target
);
1582 _mesa_error(ctx
, GL_INVALID_ENUM
,
1583 "glGetFramebufferParameteriv(target=0x%x)", target
);
1587 get_framebuffer_parameteriv(ctx
, fb
, pname
, params
,
1588 "glGetFramebufferParameteriv");
1593 * Remove the specified renderbuffer or texture from any attachment point in
1597 * \c true if the renderbuffer was detached from an attachment point. \c
1601 _mesa_detach_renderbuffer(struct gl_context
*ctx
,
1602 struct gl_framebuffer
*fb
,
1606 bool progress
= false;
1608 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1609 if (fb
->Attachment
[i
].Texture
== att
1610 || fb
->Attachment
[i
].Renderbuffer
== att
) {
1611 remove_attachment(ctx
, &fb
->Attachment
[i
]);
1616 /* Section 4.4.4 (Framebuffer Completeness), subsection "Whole Framebuffer
1617 * Completeness," of the OpenGL 3.1 spec says:
1619 * "Performing any of the following actions may change whether the
1620 * framebuffer is considered complete or incomplete:
1624 * - Deleting, with DeleteTextures or DeleteRenderbuffers, an object
1625 * containing an image that is attached to a framebuffer object
1626 * that is bound to the framebuffer."
1629 invalidate_framebuffer(fb
);
1636 _mesa_DeleteRenderbuffers(GLsizei n
, const GLuint
*renderbuffers
)
1639 GET_CURRENT_CONTEXT(ctx
);
1642 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteRenderbuffers(n < 0)");
1646 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1648 for (i
= 0; i
< n
; i
++) {
1649 if (renderbuffers
[i
] > 0) {
1650 struct gl_renderbuffer
*rb
;
1651 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
1653 /* check if deleting currently bound renderbuffer object */
1654 if (rb
== ctx
->CurrentRenderbuffer
) {
1656 assert(rb
->RefCount
>= 2);
1657 _mesa_BindRenderbuffer(GL_RENDERBUFFER_EXT
, 0);
1660 /* Section 4.4.2 (Attaching Images to Framebuffer Objects),
1661 * subsection "Attaching Renderbuffer Images to a Framebuffer,"
1662 * of the OpenGL 3.1 spec says:
1664 * "If a renderbuffer object is deleted while its image is
1665 * attached to one or more attachment points in the currently
1666 * bound framebuffer, then it is as if FramebufferRenderbuffer
1667 * had been called, with a renderbuffer of 0, for each
1668 * attachment point to which this image was attached in the
1669 * currently bound framebuffer. In other words, this
1670 * renderbuffer image is first detached from all attachment
1671 * points in the currently bound framebuffer. Note that the
1672 * renderbuffer image is specifically not detached from any
1673 * non-bound framebuffers. Detaching the image from any
1674 * non-bound framebuffers is the responsibility of the
1677 if (_mesa_is_user_fbo(ctx
->DrawBuffer
)) {
1678 _mesa_detach_renderbuffer(ctx
, ctx
->DrawBuffer
, rb
);
1680 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)
1681 && ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
1682 _mesa_detach_renderbuffer(ctx
, ctx
->ReadBuffer
, rb
);
1685 /* Remove from hash table immediately, to free the ID.
1686 * But the object will not be freed until it's no longer
1687 * referenced anywhere else.
1689 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
1691 if (rb
!= &DummyRenderbuffer
) {
1692 /* no longer referenced by hash table */
1693 _mesa_reference_renderbuffer(&rb
, NULL
);
1701 create_render_buffers(struct gl_context
*ctx
, GLsizei n
, GLuint
*renderbuffers
,
1704 const char *func
= dsa
? "glCreateRenderbuffers" : "glGenRenderbuffers";
1709 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n<0)", func
);
1716 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
1718 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
1720 for (i
= 0; i
< n
; i
++) {
1721 GLuint name
= first
+ i
;
1722 renderbuffers
[i
] = name
;
1725 allocate_renderbuffer_locked(ctx
, name
, func
);
1727 /* insert a dummy renderbuffer into the hash table */
1728 _mesa_HashInsertLocked(ctx
->Shared
->RenderBuffers
, name
,
1729 &DummyRenderbuffer
);
1733 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
1738 _mesa_GenRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1740 GET_CURRENT_CONTEXT(ctx
);
1741 create_render_buffers(ctx
, n
, renderbuffers
, false);
1746 _mesa_CreateRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1748 GET_CURRENT_CONTEXT(ctx
);
1749 create_render_buffers(ctx
, n
, renderbuffers
, true);
1754 * Given an internal format token for a render buffer, return the
1755 * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
1756 * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,
1757 * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).
1759 * This is similar to _mesa_base_tex_format() but the set of valid
1760 * internal formats is different.
1762 * Note that even if a format is determined to be legal here, validation
1763 * of the FBO may fail if the format is not supported by the driver/GPU.
1765 * \param internalFormat as passed to glRenderbufferStorage()
1766 * \return the base internal format, or 0 if internalFormat is illegal
1769 _mesa_base_fbo_format(struct gl_context
*ctx
, GLenum internalFormat
)
1772 * Notes: some formats such as alpha, luminance, etc. were added
1773 * with GL_ARB_framebuffer_object.
1775 switch (internalFormat
) {
1781 return (ctx
->API
== API_OPENGL_COMPAT
&&
1782 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_ALPHA
: 0;
1786 case GL_LUMINANCE12
:
1787 case GL_LUMINANCE16
:
1788 return (ctx
->API
== API_OPENGL_COMPAT
&&
1789 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE
: 0;
1790 case GL_LUMINANCE_ALPHA
:
1791 case GL_LUMINANCE4_ALPHA4
:
1792 case GL_LUMINANCE6_ALPHA2
:
1793 case GL_LUMINANCE8_ALPHA8
:
1794 case GL_LUMINANCE12_ALPHA4
:
1795 case GL_LUMINANCE12_ALPHA12
:
1796 case GL_LUMINANCE16_ALPHA16
:
1797 return (ctx
->API
== API_OPENGL_COMPAT
&&
1798 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE_ALPHA
: 0;
1802 case GL_INTENSITY12
:
1803 case GL_INTENSITY16
:
1804 return (ctx
->API
== API_OPENGL_COMPAT
&&
1805 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_INTENSITY
: 0;
1815 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
1817 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
1826 return _mesa_is_desktop_gl(ctx
) ? GL_RGBA
: 0;
1828 case GL_SRGB8_ALPHA8_EXT
:
1829 return _mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
1830 case GL_STENCIL_INDEX
:
1831 case GL_STENCIL_INDEX1_EXT
:
1832 case GL_STENCIL_INDEX4_EXT
:
1833 case GL_STENCIL_INDEX16_EXT
:
1834 /* There are extensions for GL_STENCIL_INDEX1 and GL_STENCIL_INDEX4 in
1835 * OpenGL ES, but Mesa does not currently support them.
1837 return _mesa_is_desktop_gl(ctx
) ? GL_STENCIL_INDEX
: 0;
1838 case GL_STENCIL_INDEX8_EXT
:
1839 return GL_STENCIL_INDEX
;
1840 case GL_DEPTH_COMPONENT
:
1841 case GL_DEPTH_COMPONENT32
:
1842 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_COMPONENT
: 0;
1843 case GL_DEPTH_COMPONENT16
:
1844 case GL_DEPTH_COMPONENT24
:
1845 return GL_DEPTH_COMPONENT
;
1846 case GL_DEPTH_STENCIL
:
1847 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_STENCIL
: 0;
1848 case GL_DEPTH24_STENCIL8
:
1849 return GL_DEPTH_STENCIL
;
1850 case GL_DEPTH_COMPONENT32F
:
1851 return ctx
->Version
>= 30
1852 || (ctx
->API
== API_OPENGL_COMPAT
&&
1853 ctx
->Extensions
.ARB_depth_buffer_float
)
1854 ? GL_DEPTH_COMPONENT
: 0;
1855 case GL_DEPTH32F_STENCIL8
:
1856 return ctx
->Version
>= 30
1857 || (ctx
->API
== API_OPENGL_COMPAT
&&
1858 ctx
->Extensions
.ARB_depth_buffer_float
)
1859 ? GL_DEPTH_STENCIL
: 0;
1862 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_rg
1865 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
1869 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_rg
1872 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
1874 /* signed normalized texture formats */
1878 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1883 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1887 case GL_RGB16_SNORM
:
1888 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1891 case GL_RGBA8_SNORM
:
1892 case GL_RGBA16_SNORM
:
1893 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1895 case GL_ALPHA_SNORM
:
1896 case GL_ALPHA8_SNORM
:
1897 case GL_ALPHA16_SNORM
:
1898 return ctx
->API
== API_OPENGL_COMPAT
&&
1899 ctx
->Extensions
.EXT_texture_snorm
&&
1900 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1901 case GL_LUMINANCE_SNORM
:
1902 case GL_LUMINANCE8_SNORM
:
1903 case GL_LUMINANCE16_SNORM
:
1904 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1906 case GL_LUMINANCE_ALPHA_SNORM
:
1907 case GL_LUMINANCE8_ALPHA8_SNORM
:
1908 case GL_LUMINANCE16_ALPHA16_SNORM
:
1909 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1910 ? GL_LUMINANCE_ALPHA
: 0;
1911 case GL_INTENSITY_SNORM
:
1912 case GL_INTENSITY8_SNORM
:
1913 case GL_INTENSITY16_SNORM
:
1914 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1919 return ((_mesa_is_desktop_gl(ctx
) &&
1920 ctx
->Extensions
.ARB_texture_rg
&&
1921 ctx
->Extensions
.ARB_texture_float
) ||
1922 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1926 return ((_mesa_is_desktop_gl(ctx
) &&
1927 ctx
->Extensions
.ARB_texture_rg
&&
1928 ctx
->Extensions
.ARB_texture_float
) ||
1929 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1933 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_float
)
1937 return ((_mesa_is_desktop_gl(ctx
) &&
1938 ctx
->Extensions
.ARB_texture_float
) ||
1939 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1941 case GL_ALPHA16F_ARB
:
1942 case GL_ALPHA32F_ARB
:
1943 return ctx
->API
== API_OPENGL_COMPAT
&&
1944 ctx
->Extensions
.ARB_texture_float
&&
1945 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1946 case GL_LUMINANCE16F_ARB
:
1947 case GL_LUMINANCE32F_ARB
:
1948 return ctx
->API
== API_OPENGL_COMPAT
&&
1949 ctx
->Extensions
.ARB_texture_float
&&
1950 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
1951 case GL_LUMINANCE_ALPHA16F_ARB
:
1952 case GL_LUMINANCE_ALPHA32F_ARB
:
1953 return ctx
->API
== API_OPENGL_COMPAT
&&
1954 ctx
->Extensions
.ARB_texture_float
&&
1955 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
1956 case GL_INTENSITY16F_ARB
:
1957 case GL_INTENSITY32F_ARB
:
1958 return ctx
->API
== API_OPENGL_COMPAT
&&
1959 ctx
->Extensions
.ARB_texture_float
&&
1960 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
1961 case GL_R11F_G11F_B10F
:
1962 return ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_packed_float
) ||
1963 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1966 case GL_RGBA8UI_EXT
:
1967 case GL_RGBA16UI_EXT
:
1968 case GL_RGBA32UI_EXT
:
1970 case GL_RGBA16I_EXT
:
1971 case GL_RGBA32I_EXT
:
1972 return ctx
->Version
>= 30
1973 || (_mesa_is_desktop_gl(ctx
) &&
1974 ctx
->Extensions
.EXT_texture_integer
) ? GL_RGBA
: 0;
1977 case GL_RGB16UI_EXT
:
1978 case GL_RGB32UI_EXT
:
1982 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_integer
1990 return ctx
->Version
>= 30
1991 || (_mesa_is_desktop_gl(ctx
) &&
1992 ctx
->Extensions
.ARB_texture_rg
&&
1993 ctx
->Extensions
.EXT_texture_integer
) ? GL_RED
: 0;
2001 return ctx
->Version
>= 30
2002 || (_mesa_is_desktop_gl(ctx
) &&
2003 ctx
->Extensions
.ARB_texture_rg
&&
2004 ctx
->Extensions
.EXT_texture_integer
) ? GL_RG
: 0;
2006 case GL_INTENSITY8I_EXT
:
2007 case GL_INTENSITY8UI_EXT
:
2008 case GL_INTENSITY16I_EXT
:
2009 case GL_INTENSITY16UI_EXT
:
2010 case GL_INTENSITY32I_EXT
:
2011 case GL_INTENSITY32UI_EXT
:
2012 return ctx
->API
== API_OPENGL_COMPAT
&&
2013 ctx
->Extensions
.EXT_texture_integer
&&
2014 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
2016 case GL_LUMINANCE8I_EXT
:
2017 case GL_LUMINANCE8UI_EXT
:
2018 case GL_LUMINANCE16I_EXT
:
2019 case GL_LUMINANCE16UI_EXT
:
2020 case GL_LUMINANCE32I_EXT
:
2021 case GL_LUMINANCE32UI_EXT
:
2022 return ctx
->API
== API_OPENGL_COMPAT
&&
2023 ctx
->Extensions
.EXT_texture_integer
&&
2024 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
2026 case GL_LUMINANCE_ALPHA8I_EXT
:
2027 case GL_LUMINANCE_ALPHA8UI_EXT
:
2028 case GL_LUMINANCE_ALPHA16I_EXT
:
2029 case GL_LUMINANCE_ALPHA16UI_EXT
:
2030 case GL_LUMINANCE_ALPHA32I_EXT
:
2031 case GL_LUMINANCE_ALPHA32UI_EXT
:
2032 return ctx
->API
== API_OPENGL_COMPAT
&&
2033 ctx
->Extensions
.EXT_texture_integer
&&
2034 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
2036 case GL_ALPHA8I_EXT
:
2037 case GL_ALPHA8UI_EXT
:
2038 case GL_ALPHA16I_EXT
:
2039 case GL_ALPHA16UI_EXT
:
2040 case GL_ALPHA32I_EXT
:
2041 case GL_ALPHA32UI_EXT
:
2042 return ctx
->API
== API_OPENGL_COMPAT
&&
2043 ctx
->Extensions
.EXT_texture_integer
&&
2044 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
2047 return (_mesa_is_desktop_gl(ctx
) &&
2048 ctx
->Extensions
.ARB_texture_rgb10_a2ui
)
2049 || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
2052 return _mesa_is_gles(ctx
) || ctx
->Extensions
.ARB_ES2_compatibility
2061 * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk().
2064 invalidate_rb(GLuint key
, void *data
, void *userData
)
2066 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2067 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) userData
;
2069 /* If this is a user-created FBO */
2070 if (_mesa_is_user_fbo(fb
)) {
2072 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2073 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2074 if (att
->Type
== GL_RENDERBUFFER
&&
2075 att
->Renderbuffer
== rb
) {
2076 /* Mark fb status as indeterminate to force re-validation */
2085 /** sentinal value, see below */
2086 #define NO_SAMPLES 1000
2089 _mesa_renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2090 GLenum internalFormat
, GLsizei width
,
2091 GLsizei height
, GLsizei samples
)
2093 const GLenum baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
2095 assert(baseFormat
!= 0);
2096 assert(width
>= 0 && width
<= (GLsizei
) ctx
->Const
.MaxRenderbufferSize
);
2097 assert(height
>= 0 && height
<= (GLsizei
) ctx
->Const
.MaxRenderbufferSize
);
2098 assert(samples
!= NO_SAMPLES
);
2100 assert(samples
> 0);
2101 assert(_mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
2102 internalFormat
, samples
) == GL_NO_ERROR
);
2105 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2107 if (rb
->InternalFormat
== internalFormat
&&
2108 rb
->Width
== (GLuint
) width
&&
2109 rb
->Height
== (GLuint
) height
&&
2110 rb
->NumSamples
== samples
) {
2111 /* no change in allocation needed */
2115 /* These MUST get set by the AllocStorage func */
2116 rb
->Format
= MESA_FORMAT_NONE
;
2117 rb
->NumSamples
= samples
;
2119 /* Now allocate the storage */
2120 assert(rb
->AllocStorage
);
2121 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
2122 /* No error - check/set fields now */
2123 /* If rb->Format == MESA_FORMAT_NONE, the format is unsupported. */
2124 assert(rb
->Width
== (GLuint
) width
);
2125 assert(rb
->Height
== (GLuint
) height
);
2126 rb
->InternalFormat
= internalFormat
;
2127 rb
->_BaseFormat
= baseFormat
;
2128 assert(rb
->_BaseFormat
!= 0);
2131 /* Probably ran out of memory - clear the fields */
2134 rb
->Format
= MESA_FORMAT_NONE
;
2135 rb
->InternalFormat
= GL_NONE
;
2136 rb
->_BaseFormat
= GL_NONE
;
2140 /* Invalidate the framebuffers the renderbuffer is attached in. */
2141 if (rb
->AttachedAnytime
) {
2142 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, invalidate_rb
, rb
);
2147 * Helper function used by renderbuffer_storage_direct() and
2148 * renderbuffer_storage_target().
2149 * samples will be NO_SAMPLES if called by a non-multisample function.
2152 renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2153 GLenum internalFormat
, GLsizei width
,
2154 GLsizei height
, GLsizei samples
, const char *func
)
2157 GLenum sample_count_error
;
2159 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
2160 if (baseFormat
== 0) {
2161 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalFormat=%s)",
2162 func
, _mesa_enum_to_string(internalFormat
));
2166 if (width
< 0 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2167 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid width %d)", func
,
2172 if (height
< 0 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2173 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid height %d)", func
,
2178 if (samples
== NO_SAMPLES
) {
2179 /* NumSamples == 0 indicates non-multisampling */
2183 /* check the sample count;
2184 * note: driver may choose to use more samples than what's requested
2186 sample_count_error
= _mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
2187 internalFormat
, samples
);
2189 /* Section 2.5 (GL Errors) of OpenGL 3.0 specification, page 16:
2191 * "If a negative number is provided where an argument of type sizei or
2192 * sizeiptr is specified, the error INVALID VALUE is generated."
2195 sample_count_error
= GL_INVALID_VALUE
;
2198 if (sample_count_error
!= GL_NO_ERROR
) {
2199 _mesa_error(ctx
, sample_count_error
, "%s(samples=%d)", func
, samples
);
2204 _mesa_renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
);
2208 * Helper function used by _mesa_NamedRenderbufferStorage*().
2209 * samples will be NO_SAMPLES if called by a non-multisample function.
2212 renderbuffer_storage_named(GLuint renderbuffer
, GLenum internalFormat
,
2213 GLsizei width
, GLsizei height
, GLsizei samples
,
2216 GET_CURRENT_CONTEXT(ctx
);
2218 if (MESA_VERBOSE
& VERBOSE_API
) {
2219 if (samples
== NO_SAMPLES
)
2220 _mesa_debug(ctx
, "%s(%u, %s, %d, %d)\n",
2222 _mesa_enum_to_string(internalFormat
),
2225 _mesa_debug(ctx
, "%s(%u, %s, %d, %d, %d)\n",
2227 _mesa_enum_to_string(internalFormat
),
2228 width
, height
, samples
);
2231 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2232 if (!rb
|| rb
== &DummyRenderbuffer
) {
2233 /* ID was reserved, but no real renderbuffer object made yet */
2234 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid renderbuffer %u)",
2235 func
, renderbuffer
);
2239 renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
, func
);
2243 * Helper function used by _mesa_RenderbufferStorage() and
2244 * _mesa_RenderbufferStorageMultisample().
2245 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorage().
2248 renderbuffer_storage_target(GLenum target
, GLenum internalFormat
,
2249 GLsizei width
, GLsizei height
, GLsizei samples
,
2252 GET_CURRENT_CONTEXT(ctx
);
2254 if (MESA_VERBOSE
& VERBOSE_API
) {
2255 if (samples
== NO_SAMPLES
)
2256 _mesa_debug(ctx
, "%s(%s, %s, %d, %d)\n",
2258 _mesa_enum_to_string(target
),
2259 _mesa_enum_to_string(internalFormat
),
2262 _mesa_debug(ctx
, "%s(%s, %s, %d, %d, %d)\n",
2264 _mesa_enum_to_string(target
),
2265 _mesa_enum_to_string(internalFormat
),
2266 width
, height
, samples
);
2269 if (target
!= GL_RENDERBUFFER_EXT
) {
2270 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
2274 if (!ctx
->CurrentRenderbuffer
) {
2275 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(no renderbuffer bound)",
2280 renderbuffer_storage(ctx
, ctx
->CurrentRenderbuffer
, internalFormat
, width
,
2281 height
, samples
, func
);
2286 _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target
, GLeglImageOES image
)
2288 struct gl_renderbuffer
*rb
;
2289 GET_CURRENT_CONTEXT(ctx
);
2291 if (!ctx
->Extensions
.OES_EGL_image
) {
2292 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2293 "glEGLImageTargetRenderbufferStorageOES(unsupported)");
2297 if (target
!= GL_RENDERBUFFER
) {
2298 _mesa_error(ctx
, GL_INVALID_ENUM
,
2299 "EGLImageTargetRenderbufferStorageOES");
2303 rb
= ctx
->CurrentRenderbuffer
;
2305 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2306 "EGLImageTargetRenderbufferStorageOES");
2310 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2312 ctx
->Driver
.EGLImageTargetRenderbufferStorage(ctx
, rb
, image
);
2317 * Helper function for _mesa_GetRenderbufferParameteriv() and
2318 * _mesa_GetFramebufferAttachmentParameteriv()
2319 * We have to be careful to respect the base format. For example, if a
2320 * renderbuffer/texture was created with internalFormat=GL_RGB but the
2321 * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
2322 * we need to return zero.
2325 get_component_bits(GLenum pname
, GLenum baseFormat
, mesa_format format
)
2327 if (_mesa_base_format_has_channel(baseFormat
, pname
))
2328 return _mesa_get_format_bits(format
, pname
);
2336 _mesa_RenderbufferStorage(GLenum target
, GLenum internalFormat
,
2337 GLsizei width
, GLsizei height
)
2339 /* GL_ARB_fbo says calling this function is equivalent to calling
2340 * glRenderbufferStorageMultisample() with samples=0. We pass in
2341 * a token value here just for error reporting purposes.
2343 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2344 NO_SAMPLES
, "glRenderbufferStorage");
2349 _mesa_RenderbufferStorageMultisample(GLenum target
, GLsizei samples
,
2350 GLenum internalFormat
,
2351 GLsizei width
, GLsizei height
)
2353 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2354 samples
, "glRenderbufferStorageMultisample");
2359 * OpenGL ES version of glRenderBufferStorage.
2362 _es_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
2363 GLsizei width
, GLsizei height
)
2365 switch (internalFormat
) {
2367 /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
2368 /* choose a closest format */
2369 internalFormat
= GL_RGB5
;
2375 renderbuffer_storage_target(target
, internalFormat
, width
, height
, 0,
2376 "glRenderbufferStorageEXT");
2380 _mesa_NamedRenderbufferStorage(GLuint renderbuffer
, GLenum internalformat
,
2381 GLsizei width
, GLsizei height
)
2383 /* GL_ARB_fbo says calling this function is equivalent to calling
2384 * glRenderbufferStorageMultisample() with samples=0. We pass in
2385 * a token value here just for error reporting purposes.
2387 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2388 NO_SAMPLES
, "glNamedRenderbufferStorage");
2392 _mesa_NamedRenderbufferStorageMultisample(GLuint renderbuffer
, GLsizei samples
,
2393 GLenum internalformat
,
2394 GLsizei width
, GLsizei height
)
2396 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2398 "glNamedRenderbufferStorageMultisample");
2403 get_render_buffer_parameteriv(struct gl_context
*ctx
,
2404 struct gl_renderbuffer
*rb
, GLenum pname
,
2405 GLint
*params
, const char *func
)
2407 /* No need to flush here since we're just quering state which is
2408 * not effected by rendering.
2412 case GL_RENDERBUFFER_WIDTH_EXT
:
2413 *params
= rb
->Width
;
2415 case GL_RENDERBUFFER_HEIGHT_EXT
:
2416 *params
= rb
->Height
;
2418 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
2419 *params
= rb
->InternalFormat
;
2421 case GL_RENDERBUFFER_RED_SIZE_EXT
:
2422 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
2423 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
2424 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
2425 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
2426 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
2427 *params
= get_component_bits(pname
, rb
->_BaseFormat
, rb
->Format
);
2429 case GL_RENDERBUFFER_SAMPLES
:
2430 if ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_framebuffer_object
)
2431 || _mesa_is_gles3(ctx
)) {
2432 *params
= rb
->NumSamples
;
2437 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname=%s)", func
,
2438 _mesa_enum_to_string(pname
));
2445 _mesa_GetRenderbufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
2447 GET_CURRENT_CONTEXT(ctx
);
2449 if (target
!= GL_RENDERBUFFER_EXT
) {
2450 _mesa_error(ctx
, GL_INVALID_ENUM
,
2451 "glGetRenderbufferParameterivEXT(target)");
2455 if (!ctx
->CurrentRenderbuffer
) {
2456 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetRenderbufferParameterivEXT"
2457 "(no renderbuffer bound)");
2461 get_render_buffer_parameteriv(ctx
, ctx
->CurrentRenderbuffer
, pname
,
2462 params
, "glGetRenderbufferParameteriv");
2467 _mesa_GetNamedRenderbufferParameteriv(GLuint renderbuffer
, GLenum pname
,
2470 GET_CURRENT_CONTEXT(ctx
);
2472 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2473 if (!rb
|| rb
== &DummyRenderbuffer
) {
2474 /* ID was reserved, but no real renderbuffer object made yet */
2475 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetNamedRenderbufferParameteriv"
2476 "(invalid renderbuffer %i)", renderbuffer
);
2480 get_render_buffer_parameteriv(ctx
, rb
, pname
, params
,
2481 "glGetNamedRenderbufferParameteriv");
2485 GLboolean GLAPIENTRY
2486 _mesa_IsFramebuffer(GLuint framebuffer
)
2488 GET_CURRENT_CONTEXT(ctx
);
2489 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
2491 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2492 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
2500 * Check if any of the attachments of the given framebuffer are textures
2501 * (render to texture). Call ctx->Driver.RenderTexture() for such
2505 check_begin_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2508 assert(ctx
->Driver
.RenderTexture
);
2510 if (_mesa_is_winsys_fbo(fb
))
2511 return; /* can't render to texture with winsys framebuffers */
2513 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2514 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2515 if (att
->Texture
&& att
->Renderbuffer
->TexImage
2516 && driver_RenderTexture_is_safe(att
)) {
2517 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
2524 * Examine all the framebuffer's attachments to see if any are textures.
2525 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
2526 * notify the device driver that the texture image may have changed.
2529 check_end_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2531 /* Skip if we know NeedsFinishRenderTexture won't be set. */
2532 if (_mesa_is_winsys_fbo(fb
) && !ctx
->Driver
.BindRenderbufferTexImage
)
2535 if (ctx
->Driver
.FinishRenderTexture
) {
2537 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2538 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2539 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
2540 if (rb
&& rb
->NeedsFinishRenderTexture
) {
2541 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
2549 bind_framebuffer(GLenum target
, GLuint framebuffer
, bool allow_user_names
)
2551 struct gl_framebuffer
*newDrawFb
, *newReadFb
;
2552 GLboolean bindReadBuf
, bindDrawBuf
;
2553 GET_CURRENT_CONTEXT(ctx
);
2556 case GL_DRAW_FRAMEBUFFER_EXT
:
2557 bindDrawBuf
= GL_TRUE
;
2558 bindReadBuf
= GL_FALSE
;
2560 case GL_READ_FRAMEBUFFER_EXT
:
2561 bindDrawBuf
= GL_FALSE
;
2562 bindReadBuf
= GL_TRUE
;
2564 case GL_FRAMEBUFFER_EXT
:
2565 bindDrawBuf
= GL_TRUE
;
2566 bindReadBuf
= GL_TRUE
;
2569 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
2574 /* Binding a user-created framebuffer object */
2575 newDrawFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2576 if (newDrawFb
== &DummyFramebuffer
) {
2577 /* ID was reserved, but no real framebuffer object made yet */
2580 else if (!newDrawFb
&& !allow_user_names
) {
2581 /* All FBO IDs must be Gen'd */
2582 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindFramebuffer(buffer)");
2587 /* create new framebuffer object */
2588 newDrawFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
2590 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
2593 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newDrawFb
);
2595 newReadFb
= newDrawFb
;
2598 /* Binding the window system framebuffer (which was originally set
2599 * with MakeCurrent).
2601 newDrawFb
= ctx
->WinSysDrawBuffer
;
2602 newReadFb
= ctx
->WinSysReadBuffer
;
2605 _mesa_bind_framebuffers(ctx
,
2606 bindDrawBuf
? newDrawFb
: ctx
->DrawBuffer
,
2607 bindReadBuf
? newReadFb
: ctx
->ReadBuffer
);
2611 _mesa_bind_framebuffers(struct gl_context
*ctx
,
2612 struct gl_framebuffer
*newDrawFb
,
2613 struct gl_framebuffer
*newReadFb
)
2615 struct gl_framebuffer
*const oldDrawFb
= ctx
->DrawBuffer
;
2616 struct gl_framebuffer
*const oldReadFb
= ctx
->ReadBuffer
;
2617 const bool bindDrawBuf
= oldDrawFb
!= newDrawFb
;
2618 const bool bindReadBuf
= oldReadFb
!= newReadFb
;
2621 assert(newDrawFb
!= &DummyFramebuffer
);
2624 * OK, now bind the new Draw/Read framebuffers, if they're changing.
2626 * We also check if we're beginning and/or ending render-to-texture.
2627 * When a framebuffer with texture attachments is unbound, call
2628 * ctx->Driver.FinishRenderTexture().
2629 * When a framebuffer with texture attachments is bound, call
2630 * ctx->Driver.RenderTexture().
2632 * Note that if the ReadBuffer has texture attachments we don't consider
2633 * that a render-to-texture case.
2636 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2638 /* check if old readbuffer was render-to-texture */
2639 check_end_texture_render(ctx
, oldReadFb
);
2641 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newReadFb
);
2645 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2647 /* check if old framebuffer had any texture attachments */
2649 check_end_texture_render(ctx
, oldDrawFb
);
2651 /* check if newly bound framebuffer has any texture attachments */
2652 check_begin_texture_render(ctx
, newDrawFb
);
2654 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newDrawFb
);
2657 if ((bindDrawBuf
|| bindReadBuf
) && ctx
->Driver
.BindFramebuffer
) {
2658 /* The few classic drivers that actually hook this function really only
2659 * want to know if the draw framebuffer changed.
2661 ctx
->Driver
.BindFramebuffer(ctx
,
2662 bindDrawBuf
? GL_FRAMEBUFFER
: GL_READ_FRAMEBUFFER
,
2663 newDrawFb
, newReadFb
);
2668 _mesa_BindFramebuffer(GLenum target
, GLuint framebuffer
)
2670 GET_CURRENT_CONTEXT(ctx
);
2672 /* OpenGL ES glBindFramebuffer and glBindFramebufferOES use this same entry
2673 * point, but they allow the use of user-generated names.
2675 bind_framebuffer(target
, framebuffer
, _mesa_is_gles(ctx
));
2680 _mesa_BindFramebufferEXT(GLenum target
, GLuint framebuffer
)
2682 /* This function should not be in the dispatch table for core profile /
2683 * OpenGL 3.1, so execution should never get here in those cases -- no
2684 * need for an explicit test.
2686 bind_framebuffer(target
, framebuffer
, true);
2691 _mesa_DeleteFramebuffers(GLsizei n
, const GLuint
*framebuffers
)
2694 GET_CURRENT_CONTEXT(ctx
);
2697 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteFramebuffers(n < 0)");
2701 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2703 for (i
= 0; i
< n
; i
++) {
2704 if (framebuffers
[i
] > 0) {
2705 struct gl_framebuffer
*fb
;
2706 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
2708 assert(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
2710 /* check if deleting currently bound framebuffer object */
2711 if (fb
== ctx
->DrawBuffer
) {
2713 assert(fb
->RefCount
>= 2);
2714 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, 0);
2716 if (fb
== ctx
->ReadBuffer
) {
2718 assert(fb
->RefCount
>= 2);
2719 _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER
, 0);
2722 /* remove from hash table immediately, to free the ID */
2723 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
2725 if (fb
!= &DummyFramebuffer
) {
2726 /* But the object will not be freed until it's no longer
2727 * bound in any context.
2729 _mesa_reference_framebuffer(&fb
, NULL
);
2738 * This is the implementation for glGenFramebuffers and glCreateFramebuffers.
2739 * It is not exposed to the rest of Mesa to encourage the use of
2740 * nameless buffers in driver internals.
2743 create_framebuffers(GLsizei n
, GLuint
*framebuffers
, bool dsa
)
2745 GET_CURRENT_CONTEXT(ctx
);
2748 struct gl_framebuffer
*fb
;
2750 const char *func
= dsa
? "glCreateFramebuffers" : "glGenFramebuffers";
2753 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n < 0)", func
);
2760 _mesa_HashLockMutex(ctx
->Shared
->FrameBuffers
);
2762 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
2764 for (i
= 0; i
< n
; i
++) {
2765 GLuint name
= first
+ i
;
2766 framebuffers
[i
] = name
;
2769 fb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffers
[i
]);
2771 _mesa_HashUnlockMutex(ctx
->Shared
->FrameBuffers
);
2772 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
2777 fb
= &DummyFramebuffer
;
2779 _mesa_HashInsertLocked(ctx
->Shared
->FrameBuffers
, name
, fb
);
2782 _mesa_HashUnlockMutex(ctx
->Shared
->FrameBuffers
);
2787 _mesa_GenFramebuffers(GLsizei n
, GLuint
*framebuffers
)
2789 create_framebuffers(n
, framebuffers
, false);
2794 _mesa_CreateFramebuffers(GLsizei n
, GLuint
*framebuffers
)
2796 create_framebuffers(n
, framebuffers
, true);
2801 _mesa_check_framebuffer_status(struct gl_context
*ctx
,
2802 struct gl_framebuffer
*buffer
)
2804 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
2806 if (_mesa_is_winsys_fbo(buffer
)) {
2807 /* EGL_KHR_surfaceless_context allows the winsys FBO to be incomplete. */
2808 if (buffer
!= &IncompleteFramebuffer
) {
2809 return GL_FRAMEBUFFER_COMPLETE_EXT
;
2811 return GL_FRAMEBUFFER_UNDEFINED
;
2815 /* No need to flush here */
2817 if (buffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE
) {
2818 _mesa_test_framebuffer_completeness(ctx
, buffer
);
2821 return buffer
->_Status
;
2826 _mesa_CheckFramebufferStatus(GLenum target
)
2828 struct gl_framebuffer
*fb
;
2829 GET_CURRENT_CONTEXT(ctx
);
2831 if (MESA_VERBOSE
& VERBOSE_API
)
2832 _mesa_debug(ctx
, "glCheckFramebufferStatus(%s)\n",
2833 _mesa_enum_to_string(target
));
2835 fb
= get_framebuffer_target(ctx
, target
);
2837 _mesa_error(ctx
, GL_INVALID_ENUM
,
2838 "glCheckFramebufferStatus(invalid target %s)",
2839 _mesa_enum_to_string(target
));
2843 return _mesa_check_framebuffer_status(ctx
, fb
);
2848 _mesa_CheckNamedFramebufferStatus(GLuint framebuffer
, GLenum target
)
2850 struct gl_framebuffer
*fb
;
2851 GET_CURRENT_CONTEXT(ctx
);
2853 /* Validate the target (for conformance's sake) and grab a reference to the
2854 * default framebuffer in case framebuffer = 0.
2855 * Section 9.4 Framebuffer Completeness of the OpenGL 4.5 core spec
2856 * (30.10.2014, PDF page 336) says:
2857 * "If framebuffer is zero, then the status of the default read or
2858 * draw framebuffer (as determined by target) is returned."
2861 case GL_DRAW_FRAMEBUFFER
:
2862 case GL_FRAMEBUFFER
:
2863 fb
= ctx
->WinSysDrawBuffer
;
2865 case GL_READ_FRAMEBUFFER
:
2866 fb
= ctx
->WinSysReadBuffer
;
2869 _mesa_error(ctx
, GL_INVALID_ENUM
,
2870 "glCheckNamedFramebufferStatus(invalid target %s)",
2871 _mesa_enum_to_string(target
));
2876 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
2877 "glCheckNamedFramebufferStatus");
2882 return _mesa_check_framebuffer_status(ctx
, fb
);
2887 * Replicate the src attachment point. Used by framebuffer_texture() when
2888 * the same texture is attached at GL_DEPTH_ATTACHMENT and
2889 * GL_STENCIL_ATTACHMENT.
2892 reuse_framebuffer_texture_attachment(struct gl_framebuffer
*fb
,
2893 gl_buffer_index dst
,
2894 gl_buffer_index src
)
2896 struct gl_renderbuffer_attachment
*dst_att
= &fb
->Attachment
[dst
];
2897 struct gl_renderbuffer_attachment
*src_att
= &fb
->Attachment
[src
];
2899 assert(src_att
->Texture
!= NULL
);
2900 assert(src_att
->Renderbuffer
!= NULL
);
2902 _mesa_reference_texobj(&dst_att
->Texture
, src_att
->Texture
);
2903 _mesa_reference_renderbuffer(&dst_att
->Renderbuffer
, src_att
->Renderbuffer
);
2904 dst_att
->Type
= src_att
->Type
;
2905 dst_att
->Complete
= src_att
->Complete
;
2906 dst_att
->TextureLevel
= src_att
->TextureLevel
;
2907 dst_att
->CubeMapFace
= src_att
->CubeMapFace
;
2908 dst_att
->Zoffset
= src_att
->Zoffset
;
2909 dst_att
->Layered
= src_att
->Layered
;
2913 static struct gl_texture_object
*
2914 get_texture_for_framebuffer(struct gl_context
*ctx
, GLuint texture
)
2919 return _mesa_lookup_texture(ctx
, texture
);
2924 * Common code called by gl*FramebufferTexture*() to retrieve the correct
2925 * texture object pointer.
2927 * \param texObj where the pointer to the texture object is returned. Note
2928 * that a successful call may return texObj = NULL.
2930 * \return true if no errors, false if errors
2933 get_texture_for_framebuffer_err(struct gl_context
*ctx
, GLuint texture
,
2934 bool layered
, const char *caller
,
2935 struct gl_texture_object
**texObj
)
2937 *texObj
= NULL
; /* This will get returned if texture = 0. */
2942 *texObj
= _mesa_lookup_texture(ctx
, texture
);
2943 if (*texObj
== NULL
|| (*texObj
)->Target
== 0) {
2944 /* Can't render to a non-existent texture object.
2946 * The OpenGL 4.5 core spec (02.02.2015) in Section 9.2 Binding and
2947 * Managing Framebuffer Objects specifies a different error
2948 * depending upon the calling function (PDF pages 325-328).
2949 * *FramebufferTexture (where layered = GL_TRUE) throws invalid
2950 * value, while the other commands throw invalid operation (where
2951 * layered = GL_FALSE).
2953 const GLenum error
= layered
? GL_INVALID_VALUE
:
2954 GL_INVALID_OPERATION
;
2955 _mesa_error(ctx
, error
,
2956 "%s(non-existent texture %u)", caller
, texture
);
2965 * Common code called by gl*FramebufferTexture() to verify the texture target
2966 * and decide whether or not the attachment should truly be considered
2969 * \param layered true if attachment should be considered layered, false if
2972 * \return true if no errors, false if errors
2975 check_layered_texture_target(struct gl_context
*ctx
, GLenum target
,
2976 const char *caller
, GLboolean
*layered
)
2982 case GL_TEXTURE_1D_ARRAY_EXT
:
2983 case GL_TEXTURE_2D_ARRAY_EXT
:
2984 case GL_TEXTURE_CUBE_MAP
:
2985 case GL_TEXTURE_CUBE_MAP_ARRAY
:
2986 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
2990 case GL_TEXTURE_RECTANGLE
:
2991 case GL_TEXTURE_2D_MULTISAMPLE
:
2992 /* These texture types are valid to pass to
2993 * glFramebufferTexture(), but since they aren't layered, it
2994 * is equivalent to calling glFramebufferTexture{1D,2D}().
2996 *layered
= GL_FALSE
;
3000 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3001 "%s(invalid texture target %s)", caller
,
3002 _mesa_enum_to_string(target
));
3008 * Common code called by gl*FramebufferTextureLayer() to verify the texture
3011 * \return true if no errors, false if errors
3014 check_texture_target(struct gl_context
*ctx
, GLenum target
,
3017 /* We're being called by glFramebufferTextureLayer().
3018 * The only legal texture types for that function are 3D,
3019 * cube-map, and 1D/2D/cube-map array textures.
3021 * We don't need to check for GL_ARB_texture_cube_map_array because the
3022 * application wouldn't have been able to create a texture with a
3023 * GL_TEXTURE_CUBE_MAP_ARRAY target if the extension were not enabled.
3027 case GL_TEXTURE_1D_ARRAY
:
3028 case GL_TEXTURE_2D_ARRAY
:
3029 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3030 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3032 case GL_TEXTURE_CUBE_MAP
:
3033 /* We don't need to check the extension (GL_ARB_direct_state_access) or
3034 * GL version (4.5) for GL_TEXTURE_CUBE_MAP because DSA is always
3035 * enabled in core profile. This can be called from
3036 * _mesa_FramebufferTextureLayer in compatibility profile (OpenGL 3.0),
3037 * so we do have to check the profile.
3039 return ctx
->API
== API_OPENGL_CORE
;
3042 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3043 "%s(invalid texture target %s)", caller
,
3044 _mesa_enum_to_string(target
));
3050 * Common code called by glFramebufferTexture*D() to verify the texture
3053 * \return true if no errors, false if errors
3056 check_textarget(struct gl_context
*ctx
, int dims
, GLenum target
,
3057 GLenum textarget
, const char *caller
)
3061 switch (textarget
) {
3065 case GL_TEXTURE_1D_ARRAY
:
3066 err
= dims
!= 1 || !ctx
->Extensions
.EXT_texture_array
;
3071 case GL_TEXTURE_2D_ARRAY
:
3072 err
= dims
!= 2 || !ctx
->Extensions
.EXT_texture_array
||
3073 (_mesa_is_gles(ctx
) && ctx
->Version
< 30);
3075 case GL_TEXTURE_2D_MULTISAMPLE
:
3076 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3078 !ctx
->Extensions
.ARB_texture_multisample
||
3079 (_mesa_is_gles(ctx
) && ctx
->Version
< 31);
3081 case GL_TEXTURE_RECTANGLE
:
3082 err
= dims
!= 2 || _mesa_is_gles(ctx
) ||
3083 !ctx
->Extensions
.NV_texture_rectangle
;
3085 case GL_TEXTURE_CUBE_MAP
:
3086 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3089 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
3090 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
3091 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
3092 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
3093 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
3094 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
3095 err
= dims
!= 2 || !ctx
->Extensions
.ARB_texture_cube_map
;
3101 _mesa_error(ctx
, GL_INVALID_ENUM
,
3102 "%s(unknown textarget 0x%x)", caller
, textarget
);
3107 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3108 "%s(invalid textarget %s)",
3109 caller
, _mesa_enum_to_string(textarget
));
3113 /* Make sure textarget is consistent with the texture's type */
3114 err
= (target
== GL_TEXTURE_CUBE_MAP
) ?
3115 !_mesa_is_cube_face(textarget
): (target
!= textarget
);
3118 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3119 "%s(mismatched texture target)", caller
);
3128 * Common code called by gl*FramebufferTextureLayer() and
3129 * glFramebufferTexture3D() to validate the layer.
3131 * \return true if no errors, false if errors
3134 check_layer(struct gl_context
*ctx
, GLenum target
, GLint layer
,
3137 /* Page 306 (page 328 of the PDF) of the OpenGL 4.5 (Core Profile)
3140 * "An INVALID_VALUE error is generated if texture is non-zero
3141 * and layer is negative."
3144 _mesa_error(ctx
, GL_INVALID_VALUE
,
3145 "%s(layer %u < 0)", caller
, layer
);
3149 if (target
== GL_TEXTURE_3D
) {
3150 const GLuint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
3151 if (layer
>= maxSize
) {
3152 _mesa_error(ctx
, GL_INVALID_VALUE
,
3153 "%s(invalid layer %u)", caller
, layer
);
3157 else if ((target
== GL_TEXTURE_1D_ARRAY
) ||
3158 (target
== GL_TEXTURE_2D_ARRAY
) ||
3159 (target
== GL_TEXTURE_CUBE_MAP_ARRAY
) ||
3160 (target
== GL_TEXTURE_2D_MULTISAMPLE_ARRAY
)) {
3161 if (layer
>= ctx
->Const
.MaxArrayTextureLayers
) {
3162 _mesa_error(ctx
, GL_INVALID_VALUE
,
3163 "%s(layer %u >= GL_MAX_ARRAY_TEXTURE_LAYERS)",
3168 else if (target
== GL_TEXTURE_CUBE_MAP
) {
3170 _mesa_error(ctx
, GL_INVALID_VALUE
,
3171 "%s(layer %u >= 6)", caller
, layer
);
3181 * Common code called by all gl*FramebufferTexture*() entry points to verify
3184 * \return true if no errors, false if errors
3187 check_level(struct gl_context
*ctx
, GLenum target
, GLint level
,
3191 (level
>= _mesa_max_texture_levels(ctx
, target
))) {
3192 _mesa_error(ctx
, GL_INVALID_VALUE
,
3193 "%s(invalid level %d)", caller
, level
);
3201 struct gl_renderbuffer_attachment
*
3202 _mesa_get_and_validate_attachment(struct gl_context
*ctx
,
3203 struct gl_framebuffer
*fb
,
3204 GLenum attachment
, const char *caller
)
3206 /* The window-system framebuffer object is immutable */
3207 if (_mesa_is_winsys_fbo(fb
)) {
3208 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(window-system framebuffer)",
3213 /* Not a hash lookup, so we can afford to get the attachment here. */
3214 bool is_color_attachment
;
3215 struct gl_renderbuffer_attachment
*att
=
3216 get_attachment(ctx
, fb
, attachment
, &is_color_attachment
);
3218 if (is_color_attachment
) {
3219 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3220 "%s(invalid color attachment %s)", caller
,
3221 _mesa_enum_to_string(attachment
));
3223 _mesa_error(ctx
, GL_INVALID_ENUM
,
3224 "%s(invalid attachment %s)", caller
,
3225 _mesa_enum_to_string(attachment
));
3235 _mesa_framebuffer_texture(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
3237 struct gl_renderbuffer_attachment
*att
,
3238 struct gl_texture_object
*texObj
, GLenum textarget
,
3239 GLint level
, GLuint layer
, GLboolean layered
)
3241 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3243 mtx_lock(&fb
->Mutex
);
3245 if (attachment
== GL_DEPTH_ATTACHMENT
&&
3246 texObj
== fb
->Attachment
[BUFFER_STENCIL
].Texture
&&
3247 level
== fb
->Attachment
[BUFFER_STENCIL
].TextureLevel
&&
3248 _mesa_tex_target_to_face(textarget
) ==
3249 fb
->Attachment
[BUFFER_STENCIL
].CubeMapFace
&&
3250 layer
== fb
->Attachment
[BUFFER_STENCIL
].Zoffset
) {
3251 /* The texture object is already attached to the stencil attachment
3252 * point. Don't create a new renderbuffer; just reuse the stencil
3253 * attachment's. This is required to prevent a GL error in
3254 * glGetFramebufferAttachmentParameteriv(GL_DEPTH_STENCIL).
3256 reuse_framebuffer_texture_attachment(fb
, BUFFER_DEPTH
,
3258 } else if (attachment
== GL_STENCIL_ATTACHMENT
&&
3259 texObj
== fb
->Attachment
[BUFFER_DEPTH
].Texture
&&
3260 level
== fb
->Attachment
[BUFFER_DEPTH
].TextureLevel
&&
3261 _mesa_tex_target_to_face(textarget
) ==
3262 fb
->Attachment
[BUFFER_DEPTH
].CubeMapFace
&&
3263 layer
== fb
->Attachment
[BUFFER_DEPTH
].Zoffset
) {
3264 /* As above, but with depth and stencil transposed. */
3265 reuse_framebuffer_texture_attachment(fb
, BUFFER_STENCIL
,
3268 set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
3269 level
, layer
, layered
);
3271 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3272 /* Above we created a new renderbuffer and attached it to the
3273 * depth attachment point. Now attach it to the stencil attachment
3276 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3277 reuse_framebuffer_texture_attachment(fb
,BUFFER_STENCIL
,
3282 /* Set the render-to-texture flag. We'll check this flag in
3283 * glTexImage() and friends to determine if we need to revalidate
3284 * any FBOs that might be rendering into this texture.
3285 * This flag never gets cleared since it's non-trivial to determine
3286 * when all FBOs might be done rendering to this texture. That's OK
3287 * though since it's uncommon to render to a texture then repeatedly
3288 * call glTexImage() to change images in the texture.
3290 texObj
->_RenderToTexture
= GL_TRUE
;
3293 remove_attachment(ctx
, att
);
3294 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3295 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3296 remove_attachment(ctx
, &fb
->Attachment
[BUFFER_STENCIL
]);
3300 invalidate_framebuffer(fb
);
3302 mtx_unlock(&fb
->Mutex
);
3307 framebuffer_texture_with_dims_no_error(GLenum target
, GLenum attachment
,
3308 GLenum textarget
, GLuint texture
,
3309 GLint level
, GLint layer
)
3311 GET_CURRENT_CONTEXT(ctx
);
3313 /* Get the framebuffer object */
3314 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
3316 /* Get the texture object */
3317 struct gl_texture_object
*texObj
=
3318 get_texture_for_framebuffer(ctx
, texture
);
3320 struct gl_renderbuffer_attachment
*att
=
3321 get_attachment(ctx
, fb
, attachment
, NULL
);
3323 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3324 level
, layer
, GL_FALSE
);
3329 framebuffer_texture_with_dims(int dims
, GLenum target
,
3330 GLenum attachment
, GLenum textarget
,
3331 GLuint texture
, GLint level
, GLint layer
,
3334 GET_CURRENT_CONTEXT(ctx
);
3335 struct gl_framebuffer
*fb
;
3336 struct gl_texture_object
*texObj
;
3338 /* Get the framebuffer object */
3339 fb
= get_framebuffer_target(ctx
, target
);
3341 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", caller
,
3342 _mesa_enum_to_string(target
));
3346 /* Get the texture object */
3347 if (!get_texture_for_framebuffer_err(ctx
, texture
, false, caller
, &texObj
))
3351 if (!check_textarget(ctx
, dims
, texObj
->Target
, textarget
, caller
))
3354 if ((dims
== 3) && !check_layer(ctx
, texObj
->Target
, layer
, caller
))
3357 if (!check_level(ctx
, textarget
, level
, caller
))
3361 struct gl_renderbuffer_attachment
*att
=
3362 _mesa_get_and_validate_attachment(ctx
, fb
, attachment
, caller
);
3366 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3367 level
, layer
, GL_FALSE
);
3372 _mesa_FramebufferTexture1D(GLenum target
, GLenum attachment
,
3373 GLenum textarget
, GLuint texture
, GLint level
)
3375 framebuffer_texture_with_dims(1, target
, attachment
, textarget
, texture
,
3376 level
, 0, "glFramebufferTexture1D");
3381 _mesa_FramebufferTexture2D(GLenum target
, GLenum attachment
,
3382 GLenum textarget
, GLuint texture
, GLint level
)
3384 framebuffer_texture_with_dims(2, target
, attachment
, textarget
, texture
,
3385 level
, 0, "glFramebufferTexture2D");
3390 _mesa_FramebufferTexture3D(GLenum target
, GLenum attachment
,
3391 GLenum textarget
, GLuint texture
,
3392 GLint level
, GLint layer
)
3394 framebuffer_texture_with_dims(3, target
, attachment
, textarget
, texture
,
3395 level
, layer
, "glFramebufferTexture3D");
3400 _mesa_FramebufferTextureLayer(GLenum target
, GLenum attachment
,
3401 GLuint texture
, GLint level
, GLint layer
)
3403 GET_CURRENT_CONTEXT(ctx
);
3404 struct gl_framebuffer
*fb
;
3405 struct gl_texture_object
*texObj
;
3406 GLenum textarget
= 0;
3408 const char *func
= "glFramebufferTextureLayer";
3410 /* Get the framebuffer object */
3411 fb
= get_framebuffer_target(ctx
, target
);
3413 _mesa_error(ctx
, GL_INVALID_ENUM
,
3414 "glFramebufferTextureLayer(invalid target %s)",
3415 _mesa_enum_to_string(target
));
3419 /* Get the texture object */
3420 if (!get_texture_for_framebuffer_err(ctx
, texture
, false, func
, &texObj
))
3424 if (!check_texture_target(ctx
, texObj
->Target
, func
))
3427 if (!check_layer(ctx
, texObj
->Target
, layer
, func
))
3430 if (!check_level(ctx
, texObj
->Target
, level
, func
))
3433 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3434 assert(layer
>= 0 && layer
< 6);
3435 textarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ layer
;
3440 struct gl_renderbuffer_attachment
*att
=
3441 _mesa_get_and_validate_attachment(ctx
, fb
, attachment
, func
);
3445 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3446 level
, layer
, GL_FALSE
);
3451 _mesa_NamedFramebufferTextureLayer(GLuint framebuffer
, GLenum attachment
,
3452 GLuint texture
, GLint level
, GLint layer
)
3454 GET_CURRENT_CONTEXT(ctx
);
3455 struct gl_framebuffer
*fb
;
3456 struct gl_texture_object
*texObj
;
3457 GLenum textarget
= 0;
3459 const char *func
= "glNamedFramebufferTextureLayer";
3461 /* Get the framebuffer object */
3462 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
, func
);
3466 /* Get the texture object */
3467 if (!get_texture_for_framebuffer_err(ctx
, texture
, false, func
, &texObj
))
3471 if (!check_texture_target(ctx
, texObj
->Target
, func
))
3474 if (!check_layer(ctx
, texObj
->Target
, layer
, func
))
3477 if (!check_level(ctx
, texObj
->Target
, level
, func
))
3480 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3481 assert(layer
>= 0 && layer
< 6);
3482 textarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ layer
;
3487 struct gl_renderbuffer_attachment
*att
=
3488 _mesa_get_and_validate_attachment(ctx
, fb
, attachment
, func
);
3492 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3493 level
, layer
, GL_FALSE
);
3498 _mesa_FramebufferTexture(GLenum target
, GLenum attachment
,
3499 GLuint texture
, GLint level
)
3501 GET_CURRENT_CONTEXT(ctx
);
3502 struct gl_framebuffer
*fb
;
3503 struct gl_texture_object
*texObj
;
3504 GLboolean layered
= GL_FALSE
;
3506 const char *func
= "FramebufferTexture";
3508 if (!_mesa_has_geometry_shaders(ctx
)) {
3509 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3510 "unsupported function (glFramebufferTexture) called");
3514 /* Get the framebuffer object */
3515 fb
= get_framebuffer_target(ctx
, target
);
3517 _mesa_error(ctx
, GL_INVALID_ENUM
,
3518 "glFramebufferTexture(invalid target %s)",
3519 _mesa_enum_to_string(target
));
3523 /* Get the texture object */
3524 if (!get_texture_for_framebuffer_err(ctx
, texture
, true, func
, &texObj
))
3528 if (!check_layered_texture_target(ctx
, texObj
->Target
, func
, &layered
))
3531 if (!check_level(ctx
, texObj
->Target
, level
, func
))
3535 struct gl_renderbuffer_attachment
*att
=
3536 _mesa_get_and_validate_attachment(ctx
, fb
, attachment
, func
);
3540 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, 0, level
,
3546 _mesa_NamedFramebufferTexture(GLuint framebuffer
, GLenum attachment
,
3547 GLuint texture
, GLint level
)
3549 GET_CURRENT_CONTEXT(ctx
);
3550 struct gl_framebuffer
*fb
;
3551 struct gl_texture_object
*texObj
;
3552 GLboolean layered
= GL_FALSE
;
3554 const char *func
= "glNamedFramebufferTexture";
3556 if (!_mesa_has_geometry_shaders(ctx
)) {
3557 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3558 "unsupported function (glNamedFramebufferTexture) called");
3562 /* Get the framebuffer object */
3563 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
, func
);
3567 /* Get the texture object */
3568 if (!get_texture_for_framebuffer_err(ctx
, texture
, true, func
, &texObj
))
3572 if (!check_layered_texture_target(ctx
, texObj
->Target
, func
,
3576 if (!check_level(ctx
, texObj
->Target
, level
, func
))
3580 struct gl_renderbuffer_attachment
*att
=
3581 _mesa_get_and_validate_attachment(ctx
, fb
, attachment
, func
);
3585 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, 0, level
,
3591 _mesa_framebuffer_renderbuffer(struct gl_context
*ctx
,
3592 struct gl_framebuffer
*fb
,
3594 struct gl_renderbuffer
*rb
)
3596 assert(!_mesa_is_winsys_fbo(fb
));
3598 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3600 assert(ctx
->Driver
.FramebufferRenderbuffer
);
3601 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
3603 /* Some subsequent GL commands may depend on the framebuffer's visual
3604 * after the binding is updated. Update visual info now.
3606 _mesa_update_framebuffer_visual(ctx
, fb
);
3610 framebuffer_renderbuffer(struct gl_context
*ctx
,
3611 struct gl_framebuffer
*fb
,
3613 struct gl_renderbuffer
*rb
,
3616 struct gl_renderbuffer_attachment
*att
;
3617 bool is_color_attachment
;
3619 if (_mesa_is_winsys_fbo(fb
)) {
3620 /* Can't attach new renderbuffers to a window system framebuffer */
3621 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3622 "%s(window-system framebuffer)", func
);
3626 att
= get_attachment(ctx
, fb
, attachment
, &is_color_attachment
);
3629 * From OpenGL 4.5 spec, section 9.2.7 "Attaching Renderbuffer Images to
3632 * "An INVALID_OPERATION error is generated if attachment is COLOR_-
3633 * ATTACHMENTm where m is greater than or equal to the value of
3634 * MAX_COLOR_- ATTACHMENTS ."
3636 * If we are at this point, is because the attachment is not valid, so
3637 * if is_color_attachment is true, is because of the previous reason.
3639 if (is_color_attachment
) {
3640 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3641 "%s(invalid color attachment %s)", func
,
3642 _mesa_enum_to_string(attachment
));
3644 _mesa_error(ctx
, GL_INVALID_ENUM
,
3645 "%s(invalid attachment %s)", func
,
3646 _mesa_enum_to_string(attachment
));
3652 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
&&
3653 rb
&& rb
->Format
!= MESA_FORMAT_NONE
) {
3654 /* make sure the renderbuffer is a depth/stencil format */
3655 const GLenum baseFormat
= _mesa_get_format_base_format(rb
->Format
);
3656 if (baseFormat
!= GL_DEPTH_STENCIL
) {
3657 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3658 "%s(renderbuffer is not DEPTH_STENCIL format)", func
);
3663 _mesa_framebuffer_renderbuffer(ctx
, fb
, attachment
, rb
);
3667 _mesa_FramebufferRenderbuffer(GLenum target
, GLenum attachment
,
3668 GLenum renderbuffertarget
,
3669 GLuint renderbuffer
)
3671 struct gl_framebuffer
*fb
;
3672 struct gl_renderbuffer
*rb
;
3673 GET_CURRENT_CONTEXT(ctx
);
3675 fb
= get_framebuffer_target(ctx
, target
);
3677 _mesa_error(ctx
, GL_INVALID_ENUM
,
3678 "glFramebufferRenderbuffer(invalid target %s)",
3679 _mesa_enum_to_string(target
));
3683 if (renderbuffertarget
!= GL_RENDERBUFFER
) {
3684 _mesa_error(ctx
, GL_INVALID_ENUM
,
3685 "glFramebufferRenderbuffer(renderbuffertarget is not "
3686 "GL_RENDERBUFFER)");
3691 rb
= _mesa_lookup_renderbuffer_err(ctx
, renderbuffer
,
3692 "glFramebufferRenderbuffer");
3697 /* remove renderbuffer attachment */
3701 framebuffer_renderbuffer(ctx
, fb
, attachment
, rb
,
3702 "glFramebufferRenderbuffer");
3707 _mesa_NamedFramebufferRenderbuffer(GLuint framebuffer
, GLenum attachment
,
3708 GLenum renderbuffertarget
,
3709 GLuint renderbuffer
)
3711 struct gl_framebuffer
*fb
;
3712 struct gl_renderbuffer
*rb
;
3713 GET_CURRENT_CONTEXT(ctx
);
3715 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3716 "glNamedFramebufferRenderbuffer");
3720 if (renderbuffertarget
!= GL_RENDERBUFFER
) {
3721 _mesa_error(ctx
, GL_INVALID_ENUM
,
3722 "glNamedFramebufferRenderbuffer(renderbuffertarget is not "
3723 "GL_RENDERBUFFER)");
3728 rb
= _mesa_lookup_renderbuffer_err(ctx
, renderbuffer
,
3729 "glNamedFramebufferRenderbuffer");
3734 /* remove renderbuffer attachment */
3738 framebuffer_renderbuffer(ctx
, fb
, attachment
, rb
,
3739 "glNamedFramebufferRenderbuffer");
3744 get_framebuffer_attachment_parameter(struct gl_context
*ctx
,
3745 struct gl_framebuffer
*buffer
,
3746 GLenum attachment
, GLenum pname
,
3747 GLint
*params
, const char *caller
)
3749 const struct gl_renderbuffer_attachment
*att
;
3750 bool is_color_attachment
= false;
3753 /* The error code for an attachment type of GL_NONE differs between APIs.
3755 * From the ES 2.0.25 specification, page 127:
3756 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
3757 * querying any other pname will generate INVALID_ENUM."
3759 * From the OpenGL 3.0 specification, page 337, or identically,
3760 * the OpenGL ES 3.0.4 specification, page 240:
3762 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, no
3763 * framebuffer is bound to target. In this case querying pname
3764 * FRAMEBUFFER_ATTACHMENT_OBJECT_NAME will return zero, and all other
3765 * queries will generate an INVALID_OPERATION error."
3767 err
= ctx
->API
== API_OPENGLES2
&& ctx
->Version
< 30 ?
3768 GL_INVALID_ENUM
: GL_INVALID_OPERATION
;
3770 if (_mesa_is_winsys_fbo(buffer
)) {
3771 /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
3774 * "If the framebuffer currently bound to target is zero, then
3775 * INVALID_OPERATION is generated."
3777 * The EXT_framebuffer_object spec has the same wording, and the
3778 * OES_framebuffer_object spec refers to the EXT_framebuffer_object
3781 if ((!_mesa_is_desktop_gl(ctx
) ||
3782 !ctx
->Extensions
.ARB_framebuffer_object
)
3783 && !_mesa_is_gles3(ctx
)) {
3784 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3785 "%s(window-system framebuffer)", caller
);
3789 if (_mesa_is_gles3(ctx
) && attachment
!= GL_BACK
&&
3790 attachment
!= GL_DEPTH
&& attachment
!= GL_STENCIL
) {
3791 _mesa_error(ctx
, GL_INVALID_ENUM
,
3792 "%s(invalid attachment %s)", caller
,
3793 _mesa_enum_to_string(attachment
));
3797 /* The specs are not clear about how to handle
3798 * GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME with the default framebuffer,
3799 * but dEQP-GLES3 expects an INVALID_ENUM error. This has also been
3802 * https://cvs.khronos.org/bugzilla/show_bug.cgi?id=12928#c1
3803 * and https://bugs.freedesktop.org/show_bug.cgi?id=31947
3805 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME
) {
3806 _mesa_error(ctx
, GL_INVALID_ENUM
,
3807 "%s(requesting GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME "
3808 "when GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is "
3809 "GL_FRAMEBUFFER_DEFAULT is not allowed)", caller
);
3813 /* the default / window-system FBO */
3814 att
= get_fb0_attachment(ctx
, buffer
, attachment
);
3817 /* user-created framebuffer FBO */
3818 att
= get_attachment(ctx
, buffer
, attachment
, &is_color_attachment
);
3823 * From OpenGL 4.5 spec, section 9.2.3 "Framebuffer Object Queries":
3825 * "An INVALID_OPERATION error is generated if a framebuffer object
3826 * is bound to target and attachment is COLOR_ATTACHMENTm where m is
3827 * greater than or equal to the value of MAX_COLOR_ATTACHMENTS."
3829 * If we are at this point, is because the attachment is not valid, so
3830 * if is_color_attachment is true, is because of the previous reason.
3832 if (is_color_attachment
) {
3833 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid color attachment %s)",
3834 caller
, _mesa_enum_to_string(attachment
));
3836 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", caller
,
3837 _mesa_enum_to_string(attachment
));
3842 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3843 const struct gl_renderbuffer_attachment
*depthAtt
, *stencilAtt
;
3844 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
) {
3845 /* This behavior is first specified in OpenGL 4.4 specification.
3847 * From the OpenGL 4.4 spec page 275:
3848 * "This query cannot be performed for a combined depth+stencil
3849 * attachment, since it does not have a single format."
3851 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3852 "%s(GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE"
3853 " is invalid for depth+stencil attachment)", caller
);
3856 /* the depth and stencil attachments must point to the same buffer */
3857 depthAtt
= get_attachment(ctx
, buffer
, GL_DEPTH_ATTACHMENT
, NULL
);
3858 stencilAtt
= get_attachment(ctx
, buffer
, GL_STENCIL_ATTACHMENT
, NULL
);
3859 if (depthAtt
->Renderbuffer
!= stencilAtt
->Renderbuffer
) {
3860 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3861 "%s(DEPTH/STENCIL attachments differ)", caller
);
3866 /* No need to flush here */
3869 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
3870 /* From the OpenGL spec, 9.2. Binding and Managing Framebuffer Objects:
3872 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
3873 * either no framebuffer is bound to target; or the default framebuffer
3874 * is bound, attachment is DEPTH or STENCIL, and the number of depth or
3875 * stencil bits, respectively, is zero."
3877 * Note that we don't need explicit checks on DEPTH and STENCIL, because
3878 * on the case the spec is pointing, att->Type is already NONE, so we
3879 * just need to check att->Type.
3881 *params
= (_mesa_is_winsys_fbo(buffer
) && att
->Type
!= GL_NONE
) ?
3882 GL_FRAMEBUFFER_DEFAULT
: att
->Type
;
3884 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
3885 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
3886 *params
= att
->Renderbuffer
->Name
;
3888 else if (att
->Type
== GL_TEXTURE
) {
3889 *params
= att
->Texture
->Name
;
3892 assert(att
->Type
== GL_NONE
);
3893 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
3896 goto invalid_pname_enum
;
3900 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
3901 if (att
->Type
== GL_TEXTURE
) {
3902 *params
= att
->TextureLevel
;
3904 else if (att
->Type
== GL_NONE
) {
3905 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3906 _mesa_enum_to_string(pname
));
3909 goto invalid_pname_enum
;
3912 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
3913 if (att
->Type
== GL_TEXTURE
) {
3914 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
3915 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
3921 else if (att
->Type
== GL_NONE
) {
3922 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3923 _mesa_enum_to_string(pname
));
3926 goto invalid_pname_enum
;
3929 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
3930 if (ctx
->API
== API_OPENGLES
) {
3931 goto invalid_pname_enum
;
3932 } else if (att
->Type
== GL_NONE
) {
3933 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3934 _mesa_enum_to_string(pname
));
3935 } else if (att
->Type
== GL_TEXTURE
) {
3936 if (att
->Texture
&& (att
->Texture
->Target
== GL_TEXTURE_3D
||
3937 att
->Texture
->Target
== GL_TEXTURE_2D_ARRAY
)) {
3938 *params
= att
->Zoffset
;
3945 goto invalid_pname_enum
;
3948 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
:
3949 if ((!_mesa_is_desktop_gl(ctx
) ||
3950 !ctx
->Extensions
.ARB_framebuffer_object
)
3951 && !_mesa_is_gles3(ctx
)) {
3952 goto invalid_pname_enum
;
3954 else if (att
->Type
== GL_NONE
) {
3955 if (_mesa_is_winsys_fbo(buffer
) &&
3956 (attachment
== GL_DEPTH
|| attachment
== GL_STENCIL
)) {
3957 *params
= GL_LINEAR
;
3959 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3960 _mesa_enum_to_string(pname
));
3964 if (ctx
->Extensions
.EXT_framebuffer_sRGB
) {
3966 _mesa_get_format_color_encoding(att
->Renderbuffer
->Format
);
3969 /* According to ARB_framebuffer_sRGB, we should return LINEAR
3970 * if the sRGB conversion is unsupported. */
3971 *params
= GL_LINEAR
;
3975 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
:
3976 if ((ctx
->API
!= API_OPENGL_COMPAT
||
3977 !ctx
->Extensions
.ARB_framebuffer_object
)
3978 && ctx
->API
!= API_OPENGL_CORE
3979 && !_mesa_is_gles3(ctx
)) {
3980 goto invalid_pname_enum
;
3982 else if (att
->Type
== GL_NONE
) {
3983 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3984 _mesa_enum_to_string(pname
));
3987 mesa_format format
= att
->Renderbuffer
->Format
;
3989 /* Page 235 (page 247 of the PDF) in section 6.1.13 of the OpenGL ES
3992 * "If pname is FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE.... If
3993 * attachment is DEPTH_STENCIL_ATTACHMENT the query will fail and
3994 * generate an INVALID_OPERATION error.
3996 if (_mesa_is_gles3(ctx
) &&
3997 attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3998 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4000 "GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE of "
4001 "GL_DEPTH_STENCIL_ATTACHMENT)", caller
);
4005 if (format
== MESA_FORMAT_S_UINT8
) {
4009 else if (format
== MESA_FORMAT_Z32_FLOAT_S8X24_UINT
) {
4010 /* depends on the attachment parameter */
4011 if (attachment
== GL_STENCIL_ATTACHMENT
) {
4019 *params
= _mesa_get_format_datatype(format
);
4023 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
4024 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
4025 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
4026 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
4027 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
4028 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
4029 if ((!_mesa_is_desktop_gl(ctx
) ||
4030 !ctx
->Extensions
.ARB_framebuffer_object
)
4031 && !_mesa_is_gles3(ctx
)) {
4032 goto invalid_pname_enum
;
4034 else if (att
->Texture
) {
4035 const struct gl_texture_image
*texImage
=
4036 _mesa_select_tex_image(att
->Texture
, att
->Texture
->Target
,
4039 *params
= get_component_bits(pname
, texImage
->_BaseFormat
,
4040 texImage
->TexFormat
);
4046 else if (att
->Renderbuffer
) {
4047 *params
= get_component_bits(pname
, att
->Renderbuffer
->_BaseFormat
,
4048 att
->Renderbuffer
->Format
);
4051 assert(att
->Type
== GL_NONE
);
4052 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4053 _mesa_enum_to_string(pname
));
4056 case GL_FRAMEBUFFER_ATTACHMENT_LAYERED
:
4057 if (!_mesa_has_geometry_shaders(ctx
)) {
4058 goto invalid_pname_enum
;
4059 } else if (att
->Type
== GL_TEXTURE
) {
4060 *params
= att
->Layered
;
4061 } else if (att
->Type
== GL_NONE
) {
4062 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4063 _mesa_enum_to_string(pname
));
4065 goto invalid_pname_enum
;
4069 goto invalid_pname_enum
;
4075 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname %s)", caller
,
4076 _mesa_enum_to_string(pname
));
4082 _mesa_GetFramebufferAttachmentParameteriv(GLenum target
, GLenum attachment
,
4083 GLenum pname
, GLint
*params
)
4085 GET_CURRENT_CONTEXT(ctx
);
4086 struct gl_framebuffer
*buffer
;
4088 buffer
= get_framebuffer_target(ctx
, target
);
4090 _mesa_error(ctx
, GL_INVALID_ENUM
,
4091 "glGetFramebufferAttachmentParameteriv(invalid target %s)",
4092 _mesa_enum_to_string(target
));
4096 get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
4098 "glGetFramebufferAttachmentParameteriv");
4103 _mesa_GetNamedFramebufferAttachmentParameteriv(GLuint framebuffer
,
4105 GLenum pname
, GLint
*params
)
4107 GET_CURRENT_CONTEXT(ctx
);
4108 struct gl_framebuffer
*buffer
;
4111 buffer
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4112 "glGetNamedFramebufferAttachmentParameteriv");
4118 * Section 9.2 Binding and Managing Framebuffer Objects of the OpenGL
4119 * 4.5 core spec (30.10.2014, PDF page 314):
4120 * "If framebuffer is zero, then the default draw framebuffer is
4123 buffer
= ctx
->WinSysDrawBuffer
;
4126 get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
4128 "glGetNamedFramebufferAttachmentParameteriv");
4133 _mesa_NamedFramebufferParameteri(GLuint framebuffer
, GLenum pname
,
4136 GET_CURRENT_CONTEXT(ctx
);
4137 struct gl_framebuffer
*fb
= NULL
;
4139 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
4140 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4141 "glNamedFramebufferParameteri("
4142 "ARB_framebuffer_no_attachments not implemented)");
4146 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4147 "glNamedFramebufferParameteri");
4150 framebuffer_parameteri(ctx
, fb
, pname
, param
,
4151 "glNamedFramebufferParameteriv");
4157 _mesa_GetNamedFramebufferParameteriv(GLuint framebuffer
, GLenum pname
,
4160 GET_CURRENT_CONTEXT(ctx
);
4161 struct gl_framebuffer
*fb
;
4163 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
4164 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4165 "glNamedFramebufferParameteriv("
4166 "ARB_framebuffer_no_attachments not implemented)");
4171 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4172 "glGetNamedFramebufferParameteriv");
4174 fb
= ctx
->WinSysDrawBuffer
;
4178 get_framebuffer_parameteriv(ctx
, fb
, pname
, param
,
4179 "glGetNamedFramebufferParameteriv");
4185 invalidate_framebuffer_storage(struct gl_context
*ctx
,
4186 struct gl_framebuffer
*fb
,
4187 GLsizei numAttachments
,
4188 const GLenum
*attachments
, GLint x
, GLint y
,
4189 GLsizei width
, GLsizei height
, const char *name
)
4193 /* Section 17.4 Whole Framebuffer Operations of the OpenGL 4.5 Core
4194 * Spec (2.2.2015, PDF page 522) says:
4195 * "An INVALID_VALUE error is generated if numAttachments, width, or
4196 * height is negative."
4198 if (numAttachments
< 0) {
4199 _mesa_error(ctx
, GL_INVALID_VALUE
,
4200 "%s(numAttachments < 0)", name
);
4205 _mesa_error(ctx
, GL_INVALID_VALUE
,
4206 "%s(width < 0)", name
);
4211 _mesa_error(ctx
, GL_INVALID_VALUE
,
4212 "%s(height < 0)", name
);
4216 /* The GL_ARB_invalidate_subdata spec says:
4218 * "If an attachment is specified that does not exist in the
4219 * framebuffer bound to <target>, it is ignored."
4223 * "If <attachments> contains COLOR_ATTACHMENTm and m is greater than
4224 * or equal to the value of MAX_COLOR_ATTACHMENTS, then the error
4225 * INVALID_OPERATION is generated."
4227 * No mention is made of GL_AUXi being out of range. Therefore, we allow
4228 * any enum that can be allowed by the API (OpenGL ES 3.0 has a different
4229 * set of retrictions).
4231 for (i
= 0; i
< numAttachments
; i
++) {
4232 if (_mesa_is_winsys_fbo(fb
)) {
4233 switch (attachments
[i
]) {
4239 /* Accumulation buffers and auxilary buffers were removed in
4240 * OpenGL 3.1, and they never existed in OpenGL ES.
4242 if (ctx
->API
!= API_OPENGL_COMPAT
)
4252 case GL_FRONT_RIGHT
:
4253 if (!_mesa_is_desktop_gl(ctx
))
4260 switch (attachments
[i
]) {
4261 case GL_DEPTH_ATTACHMENT
:
4262 case GL_STENCIL_ATTACHMENT
:
4264 case GL_DEPTH_STENCIL_ATTACHMENT
:
4265 /* GL_DEPTH_STENCIL_ATTACHMENT is a valid attachment point only
4266 * in desktop and ES 3.0 profiles. Note that OES_packed_depth_stencil
4267 * extension does not make this attachment point valid on ES 2.0.
4269 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
))
4272 case GL_COLOR_ATTACHMENT0
:
4273 case GL_COLOR_ATTACHMENT1
:
4274 case GL_COLOR_ATTACHMENT2
:
4275 case GL_COLOR_ATTACHMENT3
:
4276 case GL_COLOR_ATTACHMENT4
:
4277 case GL_COLOR_ATTACHMENT5
:
4278 case GL_COLOR_ATTACHMENT6
:
4279 case GL_COLOR_ATTACHMENT7
:
4280 case GL_COLOR_ATTACHMENT8
:
4281 case GL_COLOR_ATTACHMENT9
:
4282 case GL_COLOR_ATTACHMENT10
:
4283 case GL_COLOR_ATTACHMENT11
:
4284 case GL_COLOR_ATTACHMENT12
:
4285 case GL_COLOR_ATTACHMENT13
:
4286 case GL_COLOR_ATTACHMENT14
:
4287 case GL_COLOR_ATTACHMENT15
: {
4288 unsigned k
= attachments
[i
] - GL_COLOR_ATTACHMENT0
;
4289 if (k
>= ctx
->Const
.MaxColorAttachments
) {
4290 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4291 "%s(attachment >= max. color attachments)", name
);
4302 /* We don't actually do anything for this yet. Just return after
4303 * validating the parameters and generating the required errors.
4308 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", name
,
4309 _mesa_enum_to_string(attachments
[i
]));
4315 _mesa_InvalidateSubFramebuffer(GLenum target
, GLsizei numAttachments
,
4316 const GLenum
*attachments
, GLint x
, GLint y
,
4317 GLsizei width
, GLsizei height
)
4319 struct gl_framebuffer
*fb
;
4320 GET_CURRENT_CONTEXT(ctx
);
4322 fb
= get_framebuffer_target(ctx
, target
);
4324 _mesa_error(ctx
, GL_INVALID_ENUM
,
4325 "glInvalidateSubFramebuffer(invalid target %s)",
4326 _mesa_enum_to_string(target
));
4330 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4331 x
, y
, width
, height
,
4332 "glInvalidateSubFramebuffer");
4337 _mesa_InvalidateNamedFramebufferSubData(GLuint framebuffer
,
4338 GLsizei numAttachments
,
4339 const GLenum
*attachments
,
4341 GLsizei width
, GLsizei height
)
4343 struct gl_framebuffer
*fb
;
4344 GET_CURRENT_CONTEXT(ctx
);
4346 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
4347 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
4348 * default draw framebuffer is affected."
4351 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4352 "glInvalidateNamedFramebufferSubData");
4357 fb
= ctx
->WinSysDrawBuffer
;
4359 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4360 x
, y
, width
, height
,
4361 "glInvalidateNamedFramebufferSubData");
4366 _mesa_InvalidateFramebuffer(GLenum target
, GLsizei numAttachments
,
4367 const GLenum
*attachments
)
4369 struct gl_framebuffer
*fb
;
4370 GET_CURRENT_CONTEXT(ctx
);
4372 fb
= get_framebuffer_target(ctx
, target
);
4374 _mesa_error(ctx
, GL_INVALID_ENUM
,
4375 "glInvalidateFramebuffer(invalid target %s)",
4376 _mesa_enum_to_string(target
));
4380 /* The GL_ARB_invalidate_subdata spec says:
4384 * void InvalidateFramebuffer(enum target,
4385 * sizei numAttachments,
4386 * const enum *attachments);
4388 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
4389 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
4390 * <MAX_VIEWPORT_DIMS[1]> respectively."
4392 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4394 ctx
->Const
.MaxViewportWidth
,
4395 ctx
->Const
.MaxViewportHeight
,
4396 "glInvalidateFramebuffer");
4401 _mesa_InvalidateNamedFramebufferData(GLuint framebuffer
,
4402 GLsizei numAttachments
,
4403 const GLenum
*attachments
)
4405 struct gl_framebuffer
*fb
;
4406 GET_CURRENT_CONTEXT(ctx
);
4408 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
4409 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
4410 * default draw framebuffer is affected."
4413 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4414 "glInvalidateNamedFramebufferData");
4419 fb
= ctx
->WinSysDrawBuffer
;
4421 /* The GL_ARB_invalidate_subdata spec says:
4425 * void InvalidateFramebuffer(enum target,
4426 * sizei numAttachments,
4427 * const enum *attachments);
4429 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
4430 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
4431 * <MAX_VIEWPORT_DIMS[1]> respectively."
4433 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4435 ctx
->Const
.MaxViewportWidth
,
4436 ctx
->Const
.MaxViewportHeight
,
4437 "glInvalidateNamedFramebufferData");
4442 _mesa_DiscardFramebufferEXT(GLenum target
, GLsizei numAttachments
,
4443 const GLenum
*attachments
)
4445 struct gl_framebuffer
*fb
;
4448 GET_CURRENT_CONTEXT(ctx
);
4450 fb
= get_framebuffer_target(ctx
, target
);
4452 _mesa_error(ctx
, GL_INVALID_ENUM
,
4453 "glDiscardFramebufferEXT(target %s)",
4454 _mesa_enum_to_string(target
));
4458 if (numAttachments
< 0) {
4459 _mesa_error(ctx
, GL_INVALID_VALUE
,
4460 "glDiscardFramebufferEXT(numAttachments < 0)");
4464 for (i
= 0; i
< numAttachments
; i
++) {
4465 switch (attachments
[i
]) {
4469 if (_mesa_is_user_fbo(fb
))
4472 case GL_COLOR_ATTACHMENT0
:
4473 case GL_DEPTH_ATTACHMENT
:
4474 case GL_STENCIL_ATTACHMENT
:
4475 if (_mesa_is_winsys_fbo(fb
))
4483 if (ctx
->Driver
.DiscardFramebuffer
)
4484 ctx
->Driver
.DiscardFramebuffer(ctx
, target
, numAttachments
, attachments
);
4489 _mesa_error(ctx
, GL_INVALID_ENUM
,
4490 "glDiscardFramebufferEXT(attachment %s)",
4491 _mesa_enum_to_string(attachments
[i
]));