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 simple_mtx_init(&DummyFramebuffer
.Mutex
, mtx_plain
);
93 simple_mtx_init(&DummyRenderbuffer
.Mutex
, mtx_plain
);
94 simple_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 /* The ARB_ES3_1_compatibility spec says:
336 * "Since this command can only query a single framebuffer
337 * attachment, BACK is equivalent to BACK_LEFT."
339 if (ctx
->Extensions
.ARB_ES3_1_compatibility
)
340 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
343 if (fb
->Visual
.numAuxBuffers
== 1) {
344 return &fb
->Attachment
[BUFFER_AUX0
];
348 /* Page 336 (page 352 of the PDF) of the OpenGL 3.0 spec says:
350 * "If the default framebuffer is bound to target, then attachment must
351 * be one of FRONT LEFT, FRONT RIGHT, BACK LEFT, BACK RIGHT, or AUXi,
352 * identifying a color buffer; DEPTH, identifying the depth buffer; or
353 * STENCIL, identifying the stencil buffer."
355 * Revision #34 of the ARB_framebuffer_object spec has essentially the same
356 * language. However, revision #33 of the ARB_framebuffer_object spec
359 * "If the default framebuffer is bound to <target>, then <attachment>
360 * must be one of FRONT_LEFT, FRONT_RIGHT, BACK_LEFT, BACK_RIGHT, AUXi,
361 * DEPTH_BUFFER, or STENCIL_BUFFER, identifying a color buffer, the
362 * depth buffer, or the stencil buffer, and <pname> may be
363 * FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE or
364 * FRAMEBUFFER_ATTACHMENT_OBJECT_NAME."
366 * The enum values for DEPTH_BUFFER and STENCIL_BUFFER have been removed
367 * from glext.h, so shipping apps should not use those values.
369 * Note that neither EXT_framebuffer_object nor OES_framebuffer_object
370 * support queries of the window system FBO.
373 return &fb
->Attachment
[BUFFER_DEPTH
];
375 return &fb
->Attachment
[BUFFER_STENCIL
];
384 * Remove any texture or renderbuffer attached to the given attachment
385 * point. Update reference counts, etc.
388 remove_attachment(struct gl_context
*ctx
,
389 struct gl_renderbuffer_attachment
*att
)
391 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
393 /* tell driver that we're done rendering to this texture. */
394 if (rb
&& rb
->NeedsFinishRenderTexture
)
395 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
397 if (att
->Type
== GL_TEXTURE
) {
398 assert(att
->Texture
);
399 _mesa_reference_texobj(&att
->Texture
, NULL
); /* unbind */
400 assert(!att
->Texture
);
402 if (att
->Type
== GL_TEXTURE
|| att
->Type
== GL_RENDERBUFFER_EXT
) {
403 assert(!att
->Texture
);
404 _mesa_reference_renderbuffer(&att
->Renderbuffer
, NULL
); /* unbind */
405 assert(!att
->Renderbuffer
);
408 att
->Complete
= GL_TRUE
;
412 * Verify a couple error conditions that will lead to an incomplete FBO and
413 * may cause problems for the driver's RenderTexture path.
416 driver_RenderTexture_is_safe(const struct gl_renderbuffer_attachment
*att
)
418 const struct gl_texture_image
*const texImage
=
419 att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
422 texImage
->Width
== 0 || texImage
->Height
== 0 || texImage
->Depth
== 0)
425 if ((texImage
->TexObject
->Target
== GL_TEXTURE_1D_ARRAY
426 && att
->Zoffset
>= texImage
->Height
)
427 || (texImage
->TexObject
->Target
!= GL_TEXTURE_1D_ARRAY
428 && att
->Zoffset
>= texImage
->Depth
))
435 * Create a renderbuffer which will be set up by the driver to wrap the
436 * texture image slice.
438 * By using a gl_renderbuffer (like user-allocated renderbuffers), drivers get
439 * to share most of their framebuffer rendering code between winsys,
440 * renderbuffer, and texture attachments.
442 * The allocated renderbuffer uses a non-zero Name so that drivers can check
443 * it for determining vertical orientation, but we use ~0 to make it fairly
444 * unambiguous with actual user (non-texture) renderbuffers.
447 _mesa_update_texture_renderbuffer(struct gl_context
*ctx
,
448 struct gl_framebuffer
*fb
,
449 struct gl_renderbuffer_attachment
*att
)
451 struct gl_texture_image
*texImage
;
452 struct gl_renderbuffer
*rb
;
454 texImage
= att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
456 rb
= att
->Renderbuffer
;
458 rb
= ctx
->Driver
.NewRenderbuffer(ctx
, ~0);
460 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glFramebufferTexture()");
463 att
->Renderbuffer
= rb
;
465 /* This can't get called on a texture renderbuffer, so set it to NULL
466 * for clarity compared to user renderbuffers.
468 rb
->AllocStorage
= NULL
;
470 rb
->NeedsFinishRenderTexture
= ctx
->Driver
.FinishRenderTexture
!= NULL
;
476 rb
->_BaseFormat
= texImage
->_BaseFormat
;
477 rb
->Format
= texImage
->TexFormat
;
478 rb
->InternalFormat
= texImage
->InternalFormat
;
479 rb
->Width
= texImage
->Width2
;
480 rb
->Height
= texImage
->Height2
;
481 rb
->Depth
= texImage
->Depth2
;
482 rb
->NumSamples
= texImage
->NumSamples
;
483 rb
->TexImage
= texImage
;
485 if (driver_RenderTexture_is_safe(att
))
486 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
490 * Bind a texture object to an attachment point.
491 * The previous binding, if any, will be removed first.
494 set_texture_attachment(struct gl_context
*ctx
,
495 struct gl_framebuffer
*fb
,
496 struct gl_renderbuffer_attachment
*att
,
497 struct gl_texture_object
*texObj
,
498 GLenum texTarget
, GLuint level
, GLuint layer
,
501 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
503 if (rb
&& rb
->NeedsFinishRenderTexture
)
504 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
506 if (att
->Texture
== texObj
) {
507 /* re-attaching same texture */
508 assert(att
->Type
== GL_TEXTURE
);
512 remove_attachment(ctx
, att
);
513 att
->Type
= GL_TEXTURE
;
514 assert(!att
->Texture
);
515 _mesa_reference_texobj(&att
->Texture
, texObj
);
517 invalidate_framebuffer(fb
);
519 /* always update these fields */
520 att
->TextureLevel
= level
;
521 att
->CubeMapFace
= _mesa_tex_target_to_face(texTarget
);
522 att
->Zoffset
= layer
;
523 att
->Layered
= layered
;
524 att
->Complete
= GL_FALSE
;
526 _mesa_update_texture_renderbuffer(ctx
, fb
, att
);
531 * Bind a renderbuffer to an attachment point.
532 * The previous binding, if any, will be removed first.
535 set_renderbuffer_attachment(struct gl_context
*ctx
,
536 struct gl_renderbuffer_attachment
*att
,
537 struct gl_renderbuffer
*rb
)
539 /* XXX check if re-doing same attachment, exit early */
540 remove_attachment(ctx
, att
);
541 att
->Type
= GL_RENDERBUFFER_EXT
;
542 att
->Texture
= NULL
; /* just to be safe */
543 att
->Layered
= GL_FALSE
;
544 att
->Complete
= GL_FALSE
;
545 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
550 * Fallback for ctx->Driver.FramebufferRenderbuffer()
551 * Attach a renderbuffer object to a framebuffer object.
554 _mesa_FramebufferRenderbuffer_sw(struct gl_context
*ctx
,
555 struct gl_framebuffer
*fb
,
557 struct gl_renderbuffer
*rb
)
559 struct gl_renderbuffer_attachment
*att
;
561 simple_mtx_lock(&fb
->Mutex
);
563 att
= get_attachment(ctx
, fb
, attachment
, NULL
);
566 set_renderbuffer_attachment(ctx
, att
, rb
);
567 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
568 /* do stencil attachment here (depth already done above) */
569 att
= get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
, NULL
);
571 set_renderbuffer_attachment(ctx
, att
, rb
);
573 rb
->AttachedAnytime
= GL_TRUE
;
576 remove_attachment(ctx
, att
);
577 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
578 /* detach stencil (depth was detached above) */
579 att
= get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
, NULL
);
581 remove_attachment(ctx
, att
);
585 invalidate_framebuffer(fb
);
587 simple_mtx_unlock(&fb
->Mutex
);
592 * Fallback for ctx->Driver.ValidateFramebuffer()
593 * Check if the renderbuffer's formats are supported by the software
595 * Drivers should probably override this.
598 _mesa_validate_framebuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
601 for (buf
= 0; buf
< BUFFER_COUNT
; buf
++) {
602 const struct gl_renderbuffer
*rb
= fb
->Attachment
[buf
].Renderbuffer
;
604 switch (rb
->_BaseFormat
) {
606 case GL_LUMINANCE_ALPHA
:
611 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
615 switch (rb
->Format
) {
616 /* XXX This list is likely incomplete. */
617 case MESA_FORMAT_R9G9B9E5_FLOAT
:
618 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
621 /* render buffer format is supported by software rendering */
630 * Return true if the framebuffer has a combined depth/stencil
631 * renderbuffer attached.
634 _mesa_has_depthstencil_combined(const struct gl_framebuffer
*fb
)
636 const struct gl_renderbuffer_attachment
*depth
=
637 &fb
->Attachment
[BUFFER_DEPTH
];
638 const struct gl_renderbuffer_attachment
*stencil
=
639 &fb
->Attachment
[BUFFER_STENCIL
];
641 if (depth
->Type
== stencil
->Type
) {
642 if (depth
->Type
== GL_RENDERBUFFER_EXT
&&
643 depth
->Renderbuffer
== stencil
->Renderbuffer
)
646 if (depth
->Type
== GL_TEXTURE
&&
647 depth
->Texture
== stencil
->Texture
)
659 att_incomplete(const char *msg
)
661 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
662 _mesa_debug(NULL
, "attachment incomplete: %s\n", msg
);
671 fbo_incomplete(struct gl_context
*ctx
, const char *msg
, int index
)
673 static GLuint msg_id
;
675 _mesa_gl_debug(ctx
, &msg_id
,
676 MESA_DEBUG_SOURCE_API
,
677 MESA_DEBUG_TYPE_OTHER
,
678 MESA_DEBUG_SEVERITY_MEDIUM
,
679 "FBO incomplete: %s [%d]\n", msg
, index
);
681 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
682 _mesa_debug(NULL
, "FBO Incomplete: %s [%d]\n", msg
, index
);
688 * Is the given base format a legal format for a color renderbuffer?
691 _mesa_is_legal_color_format(const struct gl_context
*ctx
, GLenum baseFormat
)
693 switch (baseFormat
) {
698 case GL_LUMINANCE_ALPHA
:
701 return ctx
->API
== API_OPENGL_COMPAT
&&
702 ctx
->Extensions
.ARB_framebuffer_object
;
705 return ctx
->Extensions
.ARB_texture_rg
;
713 * Is the given base format a legal format for a color renderbuffer?
716 is_format_color_renderable(const struct gl_context
*ctx
, mesa_format format
,
717 GLenum internalFormat
)
719 const GLenum baseFormat
=
720 _mesa_get_format_base_format(format
);
723 valid
= _mesa_is_legal_color_format(ctx
, baseFormat
);
724 if (!valid
|| _mesa_is_desktop_gl(ctx
)) {
728 /* Reject additional cases for GLES */
729 switch (internalFormat
) {
750 if (internalFormat
!= GL_RGB10_A2
&&
751 (format
== MESA_FORMAT_B10G10R10A2_UNORM
||
752 format
== MESA_FORMAT_B10G10R10X2_UNORM
||
753 format
== MESA_FORMAT_R10G10B10A2_UNORM
||
754 format
== MESA_FORMAT_R10G10B10X2_UNORM
)) {
763 * Is the given base format a legal format for a depth/stencil renderbuffer?
766 is_legal_depth_format(const struct gl_context
*ctx
, GLenum baseFormat
)
768 switch (baseFormat
) {
769 case GL_DEPTH_COMPONENT
:
770 case GL_DEPTH_STENCIL_EXT
:
779 * Test if an attachment point is complete and update its Complete field.
780 * \param format if GL_COLOR, this is a color attachment point,
781 * if GL_DEPTH, this is a depth component attachment point,
782 * if GL_STENCIL, this is a stencil component attachment point.
785 test_attachment_completeness(const struct gl_context
*ctx
, GLenum format
,
786 struct gl_renderbuffer_attachment
*att
)
788 assert(format
== GL_COLOR
|| format
== GL_DEPTH
|| format
== GL_STENCIL
);
790 /* assume complete */
791 att
->Complete
= GL_TRUE
;
793 /* Look for reasons why the attachment might be incomplete */
794 if (att
->Type
== GL_TEXTURE
) {
795 const struct gl_texture_object
*texObj
= att
->Texture
;
796 struct gl_texture_image
*texImage
;
800 att_incomplete("no texobj");
801 att
->Complete
= GL_FALSE
;
805 texImage
= texObj
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
807 att_incomplete("no teximage");
808 att
->Complete
= GL_FALSE
;
811 if (texImage
->Width
< 1 || texImage
->Height
< 1) {
812 att_incomplete("teximage width/height=0");
813 att
->Complete
= GL_FALSE
;
817 switch (texObj
->Target
) {
819 if (att
->Zoffset
>= texImage
->Depth
) {
820 att_incomplete("bad z offset");
821 att
->Complete
= GL_FALSE
;
825 case GL_TEXTURE_1D_ARRAY
:
826 if (att
->Zoffset
>= texImage
->Height
) {
827 att_incomplete("bad 1D-array layer");
828 att
->Complete
= GL_FALSE
;
832 case GL_TEXTURE_2D_ARRAY
:
833 if (att
->Zoffset
>= texImage
->Depth
) {
834 att_incomplete("bad 2D-array layer");
835 att
->Complete
= GL_FALSE
;
839 case GL_TEXTURE_CUBE_MAP_ARRAY
:
840 if (att
->Zoffset
>= texImage
->Depth
) {
841 att_incomplete("bad cube-array layer");
842 att
->Complete
= GL_FALSE
;
848 baseFormat
= texImage
->_BaseFormat
;
850 if (format
== GL_COLOR
) {
851 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
852 att_incomplete("bad format");
853 att
->Complete
= GL_FALSE
;
856 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
857 att_incomplete("compressed internalformat");
858 att
->Complete
= GL_FALSE
;
862 /* OES_texture_float allows creation and use of floating point
863 * textures with GL_FLOAT, GL_HALF_FLOAT but it does not allow
864 * these textures to be used as a render target, this is done via
865 * GL_EXT_color_buffer(_half)_float with set of new sized types.
867 if (_mesa_is_gles(ctx
) && (texObj
->_IsFloat
|| texObj
->_IsHalfFloat
)) {
868 att_incomplete("bad internal format");
869 att
->Complete
= GL_FALSE
;
873 else if (format
== GL_DEPTH
) {
874 if (baseFormat
== GL_DEPTH_COMPONENT
) {
877 else if (ctx
->Extensions
.ARB_depth_texture
&&
878 baseFormat
== GL_DEPTH_STENCIL
) {
882 att
->Complete
= GL_FALSE
;
883 att_incomplete("bad depth format");
888 assert(format
== GL_STENCIL
);
889 if (ctx
->Extensions
.ARB_depth_texture
&&
890 baseFormat
== GL_DEPTH_STENCIL
) {
892 } else if (ctx
->Extensions
.ARB_texture_stencil8
&&
893 baseFormat
== GL_STENCIL_INDEX
) {
896 /* no such thing as stencil-only textures */
897 att_incomplete("illegal stencil texture");
898 att
->Complete
= GL_FALSE
;
903 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
904 const GLenum baseFormat
= att
->Renderbuffer
->_BaseFormat
;
906 assert(att
->Renderbuffer
);
907 if (!att
->Renderbuffer
->InternalFormat
||
908 att
->Renderbuffer
->Width
< 1 ||
909 att
->Renderbuffer
->Height
< 1) {
910 att_incomplete("0x0 renderbuffer");
911 att
->Complete
= GL_FALSE
;
914 if (format
== GL_COLOR
) {
915 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
916 att_incomplete("bad renderbuffer color format");
917 att
->Complete
= GL_FALSE
;
921 else if (format
== GL_DEPTH
) {
922 if (baseFormat
== GL_DEPTH_COMPONENT
) {
925 else if (baseFormat
== GL_DEPTH_STENCIL
) {
929 att_incomplete("bad renderbuffer depth format");
930 att
->Complete
= GL_FALSE
;
935 assert(format
== GL_STENCIL
);
936 if (baseFormat
== GL_STENCIL_INDEX
||
937 baseFormat
== GL_DEPTH_STENCIL
) {
941 att
->Complete
= GL_FALSE
;
942 att_incomplete("bad renderbuffer stencil format");
948 assert(att
->Type
== GL_NONE
);
956 * Test if the given framebuffer object is complete and update its
957 * Status field with the results.
958 * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
959 * driver to make hardware-specific validation/completeness checks.
960 * Also update the framebuffer's Width and Height fields if the
961 * framebuffer is complete.
964 _mesa_test_framebuffer_completeness(struct gl_context
*ctx
,
965 struct gl_framebuffer
*fb
)
968 GLenum intFormat
= GL_NONE
; /* color buffers' internal format */
969 GLuint minWidth
= ~0, minHeight
= ~0, maxWidth
= 0, maxHeight
= 0;
970 GLint numSamples
= -1;
971 GLint fixedSampleLocations
= -1;
974 /* Covers max_layer_count, is_layered, and layer_tex_target */
975 bool layer_info_valid
= false;
976 GLuint max_layer_count
= 0, att_layer_count
;
977 bool is_layered
= false;
978 GLenum layer_tex_target
= 0;
979 bool has_depth_attachment
= false;
980 bool has_stencil_attachment
= false;
982 assert(_mesa_is_user_fbo(fb
));
984 /* we're changing framebuffer fields here */
985 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
990 fb
->_AllColorBuffersFixedPoint
= GL_TRUE
;
991 fb
->_HasSNormOrFloatColorBuffer
= GL_FALSE
;
992 fb
->_HasAttachments
= true;
993 fb
->_IntegerBuffers
= 0;
995 /* Start at -2 to more easily loop over all attachment points.
1000 for (i
= -2; i
< (GLint
) ctx
->Const
.MaxColorAttachments
; i
++) {
1001 struct gl_renderbuffer_attachment
*att
;
1003 mesa_format attFormat
;
1004 GLenum att_tex_target
= GL_NONE
;
1007 * XXX for ARB_fbo, only check color buffers that are named by
1008 * GL_READ_BUFFER and GL_DRAW_BUFFERi.
1011 /* check for attachment completeness
1014 att
= &fb
->Attachment
[BUFFER_DEPTH
];
1015 test_attachment_completeness(ctx
, GL_DEPTH
, att
);
1016 if (!att
->Complete
) {
1017 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1018 fbo_incomplete(ctx
, "depth attachment incomplete", -1);
1020 } else if (att
->Type
!= GL_NONE
) {
1021 has_depth_attachment
= true;
1025 att
= &fb
->Attachment
[BUFFER_STENCIL
];
1026 test_attachment_completeness(ctx
, GL_STENCIL
, att
);
1027 if (!att
->Complete
) {
1028 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1029 fbo_incomplete(ctx
, "stencil attachment incomplete", -1);
1031 } else if (att
->Type
!= GL_NONE
) {
1032 has_stencil_attachment
= true;
1036 att
= &fb
->Attachment
[BUFFER_COLOR0
+ i
];
1037 test_attachment_completeness(ctx
, GL_COLOR
, att
);
1038 if (!att
->Complete
) {
1039 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1040 fbo_incomplete(ctx
, "color attachment incomplete", i
);
1045 /* get width, height, format of the renderbuffer/texture
1047 if (att
->Type
== GL_TEXTURE
) {
1048 const struct gl_texture_image
*texImg
= att
->Renderbuffer
->TexImage
;
1049 att_tex_target
= att
->Texture
->Target
;
1050 minWidth
= MIN2(minWidth
, texImg
->Width
);
1051 maxWidth
= MAX2(maxWidth
, texImg
->Width
);
1052 minHeight
= MIN2(minHeight
, texImg
->Height
);
1053 maxHeight
= MAX2(maxHeight
, texImg
->Height
);
1054 f
= texImg
->_BaseFormat
;
1055 attFormat
= texImg
->TexFormat
;
1058 if (!is_format_color_renderable(ctx
, attFormat
,
1059 texImg
->InternalFormat
) &&
1060 !is_legal_depth_format(ctx
, f
) &&
1061 f
!= GL_STENCIL_INDEX
) {
1062 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT
;
1063 fbo_incomplete(ctx
, "texture attachment incomplete", -1);
1068 numSamples
= texImg
->NumSamples
;
1069 else if (numSamples
!= texImg
->NumSamples
) {
1070 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1071 fbo_incomplete(ctx
, "inconsistent sample count", -1);
1075 if (fixedSampleLocations
< 0)
1076 fixedSampleLocations
= texImg
->FixedSampleLocations
;
1077 else if (fixedSampleLocations
!= texImg
->FixedSampleLocations
) {
1078 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1079 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1083 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
1084 minWidth
= MIN2(minWidth
, att
->Renderbuffer
->Width
);
1085 maxWidth
= MAX2(minWidth
, att
->Renderbuffer
->Width
);
1086 minHeight
= MIN2(minHeight
, att
->Renderbuffer
->Height
);
1087 maxHeight
= MAX2(minHeight
, att
->Renderbuffer
->Height
);
1088 f
= att
->Renderbuffer
->InternalFormat
;
1089 attFormat
= att
->Renderbuffer
->Format
;
1093 numSamples
= att
->Renderbuffer
->NumSamples
;
1094 else if (numSamples
!= att
->Renderbuffer
->NumSamples
) {
1095 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1096 fbo_incomplete(ctx
, "inconsistent sample count", -1);
1100 /* RENDERBUFFER has fixedSampleLocations implicitly true */
1101 if (fixedSampleLocations
< 0)
1102 fixedSampleLocations
= GL_TRUE
;
1103 else if (fixedSampleLocations
!= GL_TRUE
) {
1104 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1105 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1110 assert(att
->Type
== GL_NONE
);
1114 /* Update flags describing color buffer datatypes */
1116 GLenum type
= _mesa_get_format_datatype(attFormat
);
1118 /* check if integer color */
1119 if (_mesa_is_format_integer_color(attFormat
))
1120 fb
->_IntegerBuffers
|= (1 << i
);
1122 fb
->_AllColorBuffersFixedPoint
=
1123 fb
->_AllColorBuffersFixedPoint
&&
1124 (type
== GL_UNSIGNED_NORMALIZED
|| type
== GL_SIGNED_NORMALIZED
);
1126 fb
->_HasSNormOrFloatColorBuffer
=
1127 fb
->_HasSNormOrFloatColorBuffer
||
1128 type
== GL_SIGNED_NORMALIZED
|| type
== GL_FLOAT
;
1131 /* Error-check width, height, format */
1132 if (numImages
== 1) {
1139 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
1140 /* check that width, height, format are same */
1141 if (minWidth
!= maxWidth
|| minHeight
!= maxHeight
) {
1142 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
;
1143 fbo_incomplete(ctx
, "width or height mismatch", -1);
1146 /* check that all color buffers are the same format */
1147 if (intFormat
!= GL_NONE
&& f
!= intFormat
) {
1148 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
1149 fbo_incomplete(ctx
, "format mismatch", -1);
1155 /* Check that the format is valid. (MESA_FORMAT_NONE means unsupported)
1157 if (att
->Type
== GL_RENDERBUFFER
&&
1158 att
->Renderbuffer
->Format
== MESA_FORMAT_NONE
) {
1159 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1160 fbo_incomplete(ctx
, "unsupported renderbuffer format", i
);
1164 /* Check that layered rendering is consistent. */
1166 if (att_tex_target
== GL_TEXTURE_CUBE_MAP
)
1167 att_layer_count
= 6;
1168 else if (att_tex_target
== GL_TEXTURE_1D_ARRAY
)
1169 att_layer_count
= att
->Renderbuffer
->Height
;
1171 att_layer_count
= att
->Renderbuffer
->Depth
;
1173 att_layer_count
= 0;
1175 if (!layer_info_valid
) {
1176 is_layered
= att
->Layered
;
1177 max_layer_count
= att_layer_count
;
1178 layer_tex_target
= att_tex_target
;
1179 layer_info_valid
= true;
1180 } else if (max_layer_count
> 0 && layer_tex_target
!= att_tex_target
) {
1181 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1182 fbo_incomplete(ctx
, "layered framebuffer has mismatched targets", i
);
1184 } else if (is_layered
!= att
->Layered
) {
1185 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1187 "framebuffer attachment layer mode is inconsistent",
1190 } else if (att_layer_count
> max_layer_count
) {
1191 max_layer_count
= att_layer_count
;
1195 * The extension GL_ARB_framebuffer_no_attachments places additional
1196 * requirement on each attachment. Those additional requirements are
1197 * tighter that those of previous versions of GL. In interest of better
1198 * compatibility, we will not enforce these restrictions. For the record
1199 * those additional restrictions are quoted below:
1201 * "The width and height of image are greater than zero and less than or
1202 * equal to the values of the implementation-dependent limits
1203 * MAX_FRAMEBUFFER_WIDTH and MAX_FRAMEBUFFER_HEIGHT, respectively."
1205 * "If <image> is a three-dimensional texture or a one- or two-dimensional
1206 * array texture and the attachment is layered, the depth or layer count
1207 * of the texture is less than or equal to the implementation-dependent
1208 * limit MAX_FRAMEBUFFER_LAYERS."
1210 * "If image has multiple samples, its sample count is less than or equal
1211 * to the value of the implementation-dependent limit
1212 * MAX_FRAMEBUFFER_SAMPLES."
1214 * The same requirements are also in place for GL 4.5,
1215 * Section 9.4.1 "Framebuffer Attachment Completeness", pg 310-311
1219 fb
->MaxNumLayers
= max_layer_count
;
1221 if (numImages
== 0) {
1222 fb
->_HasAttachments
= false;
1224 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
1225 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1226 fbo_incomplete(ctx
, "no attachments", -1);
1230 if (fb
->DefaultGeometry
.Width
== 0 || fb
->DefaultGeometry
.Height
== 0) {
1231 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1232 fbo_incomplete(ctx
, "no attachments and default width or height is 0", -1);
1237 if (_mesa_is_desktop_gl(ctx
) && !ctx
->Extensions
.ARB_ES2_compatibility
) {
1238 /* Check that all DrawBuffers are present */
1239 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
1240 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
1241 const struct gl_renderbuffer_attachment
*att
1242 = get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
], NULL
);
1244 if (att
->Type
== GL_NONE
) {
1245 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
1246 fbo_incomplete(ctx
, "missing drawbuffer", j
);
1252 /* Check that the ReadBuffer is present */
1253 if (fb
->ColorReadBuffer
!= GL_NONE
) {
1254 const struct gl_renderbuffer_attachment
*att
1255 = get_attachment(ctx
, fb
, fb
->ColorReadBuffer
, NULL
);
1257 if (att
->Type
== GL_NONE
) {
1258 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
1259 fbo_incomplete(ctx
, "missing readbuffer", -1);
1265 /* The OpenGL ES3 spec, in chapter 9.4. FRAMEBUFFER COMPLETENESS, says:
1267 * "Depth and stencil attachments, if present, are the same image."
1269 * This restriction is not present in the OpenGL ES2 spec.
1271 if (_mesa_is_gles3(ctx
) &&
1272 has_stencil_attachment
&& has_depth_attachment
&&
1273 !_mesa_has_depthstencil_combined(fb
)) {
1274 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1275 fbo_incomplete(ctx
, "Depth and stencil attachments must be the same image", -1);
1279 /* Provisionally set status = COMPLETE ... */
1280 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
1282 /* ... but the driver may say the FB is incomplete.
1283 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
1286 if (ctx
->Driver
.ValidateFramebuffer
) {
1287 ctx
->Driver
.ValidateFramebuffer(ctx
, fb
);
1288 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1289 fbo_incomplete(ctx
, "driver marked FBO as incomplete", -1);
1295 * Note that if ARB_framebuffer_object is supported and the attached
1296 * renderbuffers/textures are different sizes, the framebuffer
1297 * width/height will be set to the smallest width/height.
1299 if (numImages
!= 0) {
1300 fb
->Width
= minWidth
;
1301 fb
->Height
= minHeight
;
1304 /* finally, update the visual info for the framebuffer */
1305 _mesa_update_framebuffer_visual(ctx
, fb
);
1309 GLboolean GLAPIENTRY
1310 _mesa_IsRenderbuffer(GLuint renderbuffer
)
1312 struct gl_renderbuffer
*rb
;
1314 GET_CURRENT_CONTEXT(ctx
);
1316 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1318 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1319 return rb
!= NULL
&& rb
!= &DummyRenderbuffer
;
1323 static struct gl_renderbuffer
*
1324 allocate_renderbuffer_locked(struct gl_context
*ctx
, GLuint renderbuffer
,
1327 struct gl_renderbuffer
*newRb
;
1329 /* create new renderbuffer object */
1330 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
1332 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
1335 assert(newRb
->AllocStorage
);
1336 _mesa_HashInsertLocked(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
1343 bind_renderbuffer(GLenum target
, GLuint renderbuffer
, bool allow_user_names
)
1345 struct gl_renderbuffer
*newRb
;
1346 GET_CURRENT_CONTEXT(ctx
);
1348 if (target
!= GL_RENDERBUFFER_EXT
) {
1349 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindRenderbufferEXT(target)");
1353 /* No need to flush here since the render buffer binding has no
1354 * effect on rendering state.
1358 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1359 if (newRb
== &DummyRenderbuffer
) {
1360 /* ID was reserved, but no real renderbuffer object made yet */
1363 else if (!newRb
&& !allow_user_names
) {
1364 /* All RB IDs must be Gen'd */
1365 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindRenderbuffer(buffer)");
1370 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
1371 newRb
= allocate_renderbuffer_locked(ctx
, renderbuffer
,
1372 "glBindRenderbufferEXT");
1373 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
1380 assert(newRb
!= &DummyRenderbuffer
);
1382 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
1386 _mesa_BindRenderbuffer(GLenum target
, GLuint renderbuffer
)
1388 GET_CURRENT_CONTEXT(ctx
);
1390 /* OpenGL ES glBindRenderbuffer and glBindRenderbufferOES use this same
1391 * entry point, but they allow the use of user-generated names.
1393 bind_renderbuffer(target
, renderbuffer
, _mesa_is_gles(ctx
));
1397 _mesa_BindRenderbufferEXT(GLenum target
, GLuint renderbuffer
)
1399 /* This function should not be in the dispatch table for core profile /
1400 * OpenGL 3.1, so execution should never get here in those cases -- no
1401 * need for an explicit test.
1403 bind_renderbuffer(target
, renderbuffer
, true);
1407 * ARB_framebuffer_no_attachment - Application passes requested param's
1408 * here. NOTE: NumSamples requested need not be _NumSamples which is
1409 * what the hw supports.
1412 framebuffer_parameteri(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1413 GLenum pname
, GLint param
, const char *func
)
1416 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1417 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferWidth
)
1418 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1420 fb
->DefaultGeometry
.Width
= param
;
1422 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1423 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferHeight
)
1424 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1426 fb
->DefaultGeometry
.Height
= param
;
1428 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1430 * According to the OpenGL ES 3.1 specification section 9.2.1, the
1431 * GL_FRAMEBUFFER_DEFAULT_LAYERS parameter name is not supported.
1433 if (_mesa_is_gles31(ctx
) && !ctx
->Extensions
.OES_geometry_shader
) {
1434 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1437 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferLayers
)
1438 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1440 fb
->DefaultGeometry
.Layers
= param
;
1442 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1443 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferSamples
)
1444 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1446 fb
->DefaultGeometry
.NumSamples
= param
;
1448 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1449 fb
->DefaultGeometry
.FixedSampleLocations
= param
;
1452 _mesa_error(ctx
, GL_INVALID_ENUM
,
1453 "%s(pname=0x%x)", func
, pname
);
1456 invalidate_framebuffer(fb
);
1457 ctx
->NewState
|= _NEW_BUFFERS
;
1461 _mesa_FramebufferParameteri(GLenum target
, GLenum pname
, GLint param
)
1463 GET_CURRENT_CONTEXT(ctx
);
1464 struct gl_framebuffer
*fb
;
1466 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
1467 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1468 "glFramebufferParameteriv not supported "
1469 "(ARB_framebuffer_no_attachments not implemented)");
1473 fb
= get_framebuffer_target(ctx
, target
);
1475 _mesa_error(ctx
, GL_INVALID_ENUM
,
1476 "glFramebufferParameteri(target=0x%x)", target
);
1480 /* check framebuffer binding */
1481 if (_mesa_is_winsys_fbo(fb
)) {
1482 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1483 "glFramebufferParameteri");
1487 framebuffer_parameteri(ctx
, fb
, pname
, param
, "glFramebufferParameteri");
1491 _pname_valid_for_default_framebuffer(struct gl_context
*ctx
,
1494 if (!_mesa_is_desktop_gl(ctx
))
1498 case GL_DOUBLEBUFFER
:
1499 case GL_IMPLEMENTATION_COLOR_READ_FORMAT
:
1500 case GL_IMPLEMENTATION_COLOR_READ_TYPE
:
1502 case GL_SAMPLE_BUFFERS
:
1511 get_framebuffer_parameteriv(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1512 GLenum pname
, GLint
*params
, const char *func
)
1514 /* From OpenGL 4.5 spec, section 9.2.3 "Framebuffer Object Queries:
1516 * "An INVALID_OPERATION error is generated by GetFramebufferParameteriv
1517 * if the default framebuffer is bound to target and pname is not one
1518 * of the accepted values from table 23.73, other than
1521 * For OpenGL ES, using default framebuffer still raises INVALID_OPERATION
1524 if (_mesa_is_winsys_fbo(fb
) &&
1525 !_pname_valid_for_default_framebuffer(ctx
, pname
)) {
1526 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1527 "%s(invalid pname=0x%x for default framebuffer)", func
, pname
);
1532 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1533 *params
= fb
->DefaultGeometry
.Width
;
1535 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1536 *params
= fb
->DefaultGeometry
.Height
;
1538 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1540 * According to the OpenGL ES 3.1 specification section 9.2.3, the
1541 * GL_FRAMEBUFFER_LAYERS parameter name is not supported.
1543 if (_mesa_is_gles31(ctx
) && !ctx
->Extensions
.OES_geometry_shader
) {
1544 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1547 *params
= fb
->DefaultGeometry
.Layers
;
1549 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1550 *params
= fb
->DefaultGeometry
.NumSamples
;
1552 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1553 *params
= fb
->DefaultGeometry
.FixedSampleLocations
;
1555 case GL_DOUBLEBUFFER
:
1556 *params
= fb
->Visual
.doubleBufferMode
;
1558 case GL_IMPLEMENTATION_COLOR_READ_FORMAT
:
1559 *params
= _mesa_get_color_read_format(ctx
, fb
, func
);
1561 case GL_IMPLEMENTATION_COLOR_READ_TYPE
:
1562 *params
= _mesa_get_color_read_type(ctx
, fb
, func
);
1565 *params
= _mesa_geometric_samples(fb
);
1567 case GL_SAMPLE_BUFFERS
:
1568 *params
= _mesa_geometric_samples(fb
) > 0;
1571 *params
= fb
->Visual
.stereoMode
;
1574 _mesa_error(ctx
, GL_INVALID_ENUM
,
1575 "%s(pname=0x%x)", func
, pname
);
1580 _mesa_GetFramebufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
1582 GET_CURRENT_CONTEXT(ctx
);
1583 struct gl_framebuffer
*fb
;
1585 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
1586 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1587 "glGetFramebufferParameteriv not supported "
1588 "(ARB_framebuffer_no_attachments not implemented)");
1592 fb
= get_framebuffer_target(ctx
, target
);
1594 _mesa_error(ctx
, GL_INVALID_ENUM
,
1595 "glGetFramebufferParameteriv(target=0x%x)", target
);
1599 get_framebuffer_parameteriv(ctx
, fb
, pname
, params
,
1600 "glGetFramebufferParameteriv");
1605 * Remove the specified renderbuffer or texture from any attachment point in
1609 * \c true if the renderbuffer was detached from an attachment point. \c
1613 _mesa_detach_renderbuffer(struct gl_context
*ctx
,
1614 struct gl_framebuffer
*fb
,
1618 bool progress
= false;
1620 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1621 if (fb
->Attachment
[i
].Texture
== att
1622 || fb
->Attachment
[i
].Renderbuffer
== att
) {
1623 remove_attachment(ctx
, &fb
->Attachment
[i
]);
1628 /* Section 4.4.4 (Framebuffer Completeness), subsection "Whole Framebuffer
1629 * Completeness," of the OpenGL 3.1 spec says:
1631 * "Performing any of the following actions may change whether the
1632 * framebuffer is considered complete or incomplete:
1636 * - Deleting, with DeleteTextures or DeleteRenderbuffers, an object
1637 * containing an image that is attached to a framebuffer object
1638 * that is bound to the framebuffer."
1641 invalidate_framebuffer(fb
);
1648 _mesa_DeleteRenderbuffers(GLsizei n
, const GLuint
*renderbuffers
)
1651 GET_CURRENT_CONTEXT(ctx
);
1654 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteRenderbuffers(n < 0)");
1658 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1660 for (i
= 0; i
< n
; i
++) {
1661 if (renderbuffers
[i
] > 0) {
1662 struct gl_renderbuffer
*rb
;
1663 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
1665 /* check if deleting currently bound renderbuffer object */
1666 if (rb
== ctx
->CurrentRenderbuffer
) {
1668 assert(rb
->RefCount
>= 2);
1669 _mesa_BindRenderbuffer(GL_RENDERBUFFER_EXT
, 0);
1672 /* Section 4.4.2 (Attaching Images to Framebuffer Objects),
1673 * subsection "Attaching Renderbuffer Images to a Framebuffer,"
1674 * of the OpenGL 3.1 spec says:
1676 * "If a renderbuffer object is deleted while its image is
1677 * attached to one or more attachment points in the currently
1678 * bound framebuffer, then it is as if FramebufferRenderbuffer
1679 * had been called, with a renderbuffer of 0, for each
1680 * attachment point to which this image was attached in the
1681 * currently bound framebuffer. In other words, this
1682 * renderbuffer image is first detached from all attachment
1683 * points in the currently bound framebuffer. Note that the
1684 * renderbuffer image is specifically not detached from any
1685 * non-bound framebuffers. Detaching the image from any
1686 * non-bound framebuffers is the responsibility of the
1689 if (_mesa_is_user_fbo(ctx
->DrawBuffer
)) {
1690 _mesa_detach_renderbuffer(ctx
, ctx
->DrawBuffer
, rb
);
1692 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)
1693 && ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
1694 _mesa_detach_renderbuffer(ctx
, ctx
->ReadBuffer
, rb
);
1697 /* Remove from hash table immediately, to free the ID.
1698 * But the object will not be freed until it's no longer
1699 * referenced anywhere else.
1701 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
1703 if (rb
!= &DummyRenderbuffer
) {
1704 /* no longer referenced by hash table */
1705 _mesa_reference_renderbuffer(&rb
, NULL
);
1713 create_render_buffers(struct gl_context
*ctx
, GLsizei n
, GLuint
*renderbuffers
,
1716 const char *func
= dsa
? "glCreateRenderbuffers" : "glGenRenderbuffers";
1723 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
1725 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
1727 for (i
= 0; i
< n
; i
++) {
1728 GLuint name
= first
+ i
;
1729 renderbuffers
[i
] = name
;
1732 allocate_renderbuffer_locked(ctx
, name
, func
);
1734 /* insert a dummy renderbuffer into the hash table */
1735 _mesa_HashInsertLocked(ctx
->Shared
->RenderBuffers
, name
,
1736 &DummyRenderbuffer
);
1740 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
1745 create_render_buffers_err(struct gl_context
*ctx
, GLsizei n
,
1746 GLuint
*renderbuffers
, bool dsa
)
1748 const char *func
= dsa
? "glCreateRenderbuffers" : "glGenRenderbuffers";
1751 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n<0)", func
);
1755 create_render_buffers(ctx
, n
, renderbuffers
, dsa
);
1760 _mesa_GenRenderbuffers_no_error(GLsizei n
, GLuint
*renderbuffers
)
1762 GET_CURRENT_CONTEXT(ctx
);
1763 create_render_buffers(ctx
, n
, renderbuffers
, false);
1768 _mesa_GenRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1770 GET_CURRENT_CONTEXT(ctx
);
1771 create_render_buffers_err(ctx
, n
, renderbuffers
, false);
1776 _mesa_CreateRenderbuffers_no_error(GLsizei n
, GLuint
*renderbuffers
)
1778 GET_CURRENT_CONTEXT(ctx
);
1779 create_render_buffers(ctx
, n
, renderbuffers
, true);
1784 _mesa_CreateRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1786 GET_CURRENT_CONTEXT(ctx
);
1787 create_render_buffers_err(ctx
, n
, renderbuffers
, true);
1792 * Given an internal format token for a render buffer, return the
1793 * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
1794 * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,
1795 * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).
1797 * This is similar to _mesa_base_tex_format() but the set of valid
1798 * internal formats is different.
1800 * Note that even if a format is determined to be legal here, validation
1801 * of the FBO may fail if the format is not supported by the driver/GPU.
1803 * \param internalFormat as passed to glRenderbufferStorage()
1804 * \return the base internal format, or 0 if internalFormat is illegal
1807 _mesa_base_fbo_format(struct gl_context
*ctx
, GLenum internalFormat
)
1810 * Notes: some formats such as alpha, luminance, etc. were added
1811 * with GL_ARB_framebuffer_object.
1813 switch (internalFormat
) {
1819 return (ctx
->API
== API_OPENGL_COMPAT
&&
1820 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_ALPHA
: 0;
1824 case GL_LUMINANCE12
:
1825 case GL_LUMINANCE16
:
1826 return (ctx
->API
== API_OPENGL_COMPAT
&&
1827 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE
: 0;
1828 case GL_LUMINANCE_ALPHA
:
1829 case GL_LUMINANCE4_ALPHA4
:
1830 case GL_LUMINANCE6_ALPHA2
:
1831 case GL_LUMINANCE8_ALPHA8
:
1832 case GL_LUMINANCE12_ALPHA4
:
1833 case GL_LUMINANCE12_ALPHA12
:
1834 case GL_LUMINANCE16_ALPHA16
:
1835 return (ctx
->API
== API_OPENGL_COMPAT
&&
1836 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE_ALPHA
: 0;
1840 case GL_INTENSITY12
:
1841 case GL_INTENSITY16
:
1842 return (ctx
->API
== API_OPENGL_COMPAT
&&
1843 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_INTENSITY
: 0;
1853 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
1855 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
1864 return _mesa_is_desktop_gl(ctx
) ? GL_RGBA
: 0;
1866 case GL_SRGB8_ALPHA8_EXT
:
1867 return _mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
1868 case GL_STENCIL_INDEX
:
1869 case GL_STENCIL_INDEX1_EXT
:
1870 case GL_STENCIL_INDEX4_EXT
:
1871 case GL_STENCIL_INDEX16_EXT
:
1872 /* There are extensions for GL_STENCIL_INDEX1 and GL_STENCIL_INDEX4 in
1873 * OpenGL ES, but Mesa does not currently support them.
1875 return _mesa_is_desktop_gl(ctx
) ? GL_STENCIL_INDEX
: 0;
1876 case GL_STENCIL_INDEX8_EXT
:
1877 return GL_STENCIL_INDEX
;
1878 case GL_DEPTH_COMPONENT
:
1879 case GL_DEPTH_COMPONENT32
:
1880 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_COMPONENT
: 0;
1881 case GL_DEPTH_COMPONENT16
:
1882 case GL_DEPTH_COMPONENT24
:
1883 return GL_DEPTH_COMPONENT
;
1884 case GL_DEPTH_STENCIL
:
1885 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_STENCIL
: 0;
1886 case GL_DEPTH24_STENCIL8
:
1887 return GL_DEPTH_STENCIL
;
1888 case GL_DEPTH_COMPONENT32F
:
1889 return ctx
->Version
>= 30
1890 || (ctx
->API
== API_OPENGL_COMPAT
&&
1891 ctx
->Extensions
.ARB_depth_buffer_float
)
1892 ? GL_DEPTH_COMPONENT
: 0;
1893 case GL_DEPTH32F_STENCIL8
:
1894 return ctx
->Version
>= 30
1895 || (ctx
->API
== API_OPENGL_COMPAT
&&
1896 ctx
->Extensions
.ARB_depth_buffer_float
)
1897 ? GL_DEPTH_STENCIL
: 0;
1900 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_rg
1903 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
1907 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_rg
1910 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
1912 /* signed normalized texture formats */
1916 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1921 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1925 case GL_RGB16_SNORM
:
1926 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1929 case GL_RGBA8_SNORM
:
1930 case GL_RGBA16_SNORM
:
1931 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1933 case GL_ALPHA_SNORM
:
1934 case GL_ALPHA8_SNORM
:
1935 case GL_ALPHA16_SNORM
:
1936 return ctx
->API
== API_OPENGL_COMPAT
&&
1937 ctx
->Extensions
.EXT_texture_snorm
&&
1938 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1939 case GL_LUMINANCE_SNORM
:
1940 case GL_LUMINANCE8_SNORM
:
1941 case GL_LUMINANCE16_SNORM
:
1942 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1944 case GL_LUMINANCE_ALPHA_SNORM
:
1945 case GL_LUMINANCE8_ALPHA8_SNORM
:
1946 case GL_LUMINANCE16_ALPHA16_SNORM
:
1947 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1948 ? GL_LUMINANCE_ALPHA
: 0;
1949 case GL_INTENSITY_SNORM
:
1950 case GL_INTENSITY8_SNORM
:
1951 case GL_INTENSITY16_SNORM
:
1952 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1957 return ((_mesa_is_desktop_gl(ctx
) &&
1958 ctx
->Extensions
.ARB_texture_rg
&&
1959 ctx
->Extensions
.ARB_texture_float
) ||
1960 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1964 return ((_mesa_is_desktop_gl(ctx
) &&
1965 ctx
->Extensions
.ARB_texture_rg
&&
1966 ctx
->Extensions
.ARB_texture_float
) ||
1967 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1971 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_float
)
1975 return ((_mesa_is_desktop_gl(ctx
) &&
1976 ctx
->Extensions
.ARB_texture_float
) ||
1977 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1979 case GL_ALPHA16F_ARB
:
1980 case GL_ALPHA32F_ARB
:
1981 return ctx
->API
== API_OPENGL_COMPAT
&&
1982 ctx
->Extensions
.ARB_texture_float
&&
1983 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1984 case GL_LUMINANCE16F_ARB
:
1985 case GL_LUMINANCE32F_ARB
:
1986 return ctx
->API
== API_OPENGL_COMPAT
&&
1987 ctx
->Extensions
.ARB_texture_float
&&
1988 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
1989 case GL_LUMINANCE_ALPHA16F_ARB
:
1990 case GL_LUMINANCE_ALPHA32F_ARB
:
1991 return ctx
->API
== API_OPENGL_COMPAT
&&
1992 ctx
->Extensions
.ARB_texture_float
&&
1993 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
1994 case GL_INTENSITY16F_ARB
:
1995 case GL_INTENSITY32F_ARB
:
1996 return ctx
->API
== API_OPENGL_COMPAT
&&
1997 ctx
->Extensions
.ARB_texture_float
&&
1998 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
1999 case GL_R11F_G11F_B10F
:
2000 return ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_packed_float
) ||
2001 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2004 case GL_RGBA8UI_EXT
:
2005 case GL_RGBA16UI_EXT
:
2006 case GL_RGBA32UI_EXT
:
2008 case GL_RGBA16I_EXT
:
2009 case GL_RGBA32I_EXT
:
2010 return ctx
->Version
>= 30
2011 || (_mesa_is_desktop_gl(ctx
) &&
2012 ctx
->Extensions
.EXT_texture_integer
) ? GL_RGBA
: 0;
2015 case GL_RGB16UI_EXT
:
2016 case GL_RGB32UI_EXT
:
2020 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_integer
2028 return ctx
->Version
>= 30
2029 || (_mesa_is_desktop_gl(ctx
) &&
2030 ctx
->Extensions
.ARB_texture_rg
&&
2031 ctx
->Extensions
.EXT_texture_integer
) ? GL_RED
: 0;
2039 return ctx
->Version
>= 30
2040 || (_mesa_is_desktop_gl(ctx
) &&
2041 ctx
->Extensions
.ARB_texture_rg
&&
2042 ctx
->Extensions
.EXT_texture_integer
) ? GL_RG
: 0;
2044 case GL_INTENSITY8I_EXT
:
2045 case GL_INTENSITY8UI_EXT
:
2046 case GL_INTENSITY16I_EXT
:
2047 case GL_INTENSITY16UI_EXT
:
2048 case GL_INTENSITY32I_EXT
:
2049 case GL_INTENSITY32UI_EXT
:
2050 return ctx
->API
== API_OPENGL_COMPAT
&&
2051 ctx
->Extensions
.EXT_texture_integer
&&
2052 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
2054 case GL_LUMINANCE8I_EXT
:
2055 case GL_LUMINANCE8UI_EXT
:
2056 case GL_LUMINANCE16I_EXT
:
2057 case GL_LUMINANCE16UI_EXT
:
2058 case GL_LUMINANCE32I_EXT
:
2059 case GL_LUMINANCE32UI_EXT
:
2060 return ctx
->API
== API_OPENGL_COMPAT
&&
2061 ctx
->Extensions
.EXT_texture_integer
&&
2062 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
2064 case GL_LUMINANCE_ALPHA8I_EXT
:
2065 case GL_LUMINANCE_ALPHA8UI_EXT
:
2066 case GL_LUMINANCE_ALPHA16I_EXT
:
2067 case GL_LUMINANCE_ALPHA16UI_EXT
:
2068 case GL_LUMINANCE_ALPHA32I_EXT
:
2069 case GL_LUMINANCE_ALPHA32UI_EXT
:
2070 return ctx
->API
== API_OPENGL_COMPAT
&&
2071 ctx
->Extensions
.EXT_texture_integer
&&
2072 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
2074 case GL_ALPHA8I_EXT
:
2075 case GL_ALPHA8UI_EXT
:
2076 case GL_ALPHA16I_EXT
:
2077 case GL_ALPHA16UI_EXT
:
2078 case GL_ALPHA32I_EXT
:
2079 case GL_ALPHA32UI_EXT
:
2080 return ctx
->API
== API_OPENGL_COMPAT
&&
2081 ctx
->Extensions
.EXT_texture_integer
&&
2082 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
2085 return (_mesa_is_desktop_gl(ctx
) &&
2086 ctx
->Extensions
.ARB_texture_rgb10_a2ui
)
2087 || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
2090 return _mesa_is_gles(ctx
) || ctx
->Extensions
.ARB_ES2_compatibility
2099 * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk().
2102 invalidate_rb(GLuint key
, void *data
, void *userData
)
2104 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2105 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) userData
;
2107 /* If this is a user-created FBO */
2108 if (_mesa_is_user_fbo(fb
)) {
2110 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2111 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2112 if (att
->Type
== GL_RENDERBUFFER
&&
2113 att
->Renderbuffer
== rb
) {
2114 /* Mark fb status as indeterminate to force re-validation */
2123 /** sentinal value, see below */
2124 #define NO_SAMPLES 1000
2127 _mesa_renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2128 GLenum internalFormat
, GLsizei width
,
2129 GLsizei height
, GLsizei samples
)
2131 const GLenum baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
2133 assert(baseFormat
!= 0);
2134 assert(width
>= 0 && width
<= (GLsizei
) ctx
->Const
.MaxRenderbufferSize
);
2135 assert(height
>= 0 && height
<= (GLsizei
) ctx
->Const
.MaxRenderbufferSize
);
2136 assert(samples
!= NO_SAMPLES
);
2138 assert(samples
> 0);
2139 assert(_mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
2140 internalFormat
, samples
) == GL_NO_ERROR
);
2143 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2145 if (rb
->InternalFormat
== internalFormat
&&
2146 rb
->Width
== (GLuint
) width
&&
2147 rb
->Height
== (GLuint
) height
&&
2148 rb
->NumSamples
== samples
) {
2149 /* no change in allocation needed */
2153 /* These MUST get set by the AllocStorage func */
2154 rb
->Format
= MESA_FORMAT_NONE
;
2155 rb
->NumSamples
= samples
;
2157 /* Now allocate the storage */
2158 assert(rb
->AllocStorage
);
2159 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
2160 /* No error - check/set fields now */
2161 /* If rb->Format == MESA_FORMAT_NONE, the format is unsupported. */
2162 assert(rb
->Width
== (GLuint
) width
);
2163 assert(rb
->Height
== (GLuint
) height
);
2164 rb
->InternalFormat
= internalFormat
;
2165 rb
->_BaseFormat
= baseFormat
;
2166 assert(rb
->_BaseFormat
!= 0);
2169 /* Probably ran out of memory - clear the fields */
2172 rb
->Format
= MESA_FORMAT_NONE
;
2173 rb
->InternalFormat
= GL_NONE
;
2174 rb
->_BaseFormat
= GL_NONE
;
2178 /* Invalidate the framebuffers the renderbuffer is attached in. */
2179 if (rb
->AttachedAnytime
) {
2180 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, invalidate_rb
, rb
);
2185 * Helper function used by renderbuffer_storage_direct() and
2186 * renderbuffer_storage_target().
2187 * samples will be NO_SAMPLES if called by a non-multisample function.
2190 renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2191 GLenum internalFormat
, GLsizei width
,
2192 GLsizei height
, GLsizei samples
, const char *func
)
2195 GLenum sample_count_error
;
2197 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
2198 if (baseFormat
== 0) {
2199 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalFormat=%s)",
2200 func
, _mesa_enum_to_string(internalFormat
));
2204 if (width
< 0 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2205 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid width %d)", func
,
2210 if (height
< 0 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2211 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid height %d)", func
,
2216 if (samples
== NO_SAMPLES
) {
2217 /* NumSamples == 0 indicates non-multisampling */
2221 /* check the sample count;
2222 * note: driver may choose to use more samples than what's requested
2224 sample_count_error
= _mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
2225 internalFormat
, samples
);
2227 /* Section 2.5 (GL Errors) of OpenGL 3.0 specification, page 16:
2229 * "If a negative number is provided where an argument of type sizei or
2230 * sizeiptr is specified, the error INVALID VALUE is generated."
2233 sample_count_error
= GL_INVALID_VALUE
;
2236 if (sample_count_error
!= GL_NO_ERROR
) {
2237 _mesa_error(ctx
, sample_count_error
, "%s(samples=%d)", func
, samples
);
2242 _mesa_renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
);
2246 * Helper function used by _mesa_NamedRenderbufferStorage*().
2247 * samples will be NO_SAMPLES if called by a non-multisample function.
2250 renderbuffer_storage_named(GLuint renderbuffer
, GLenum internalFormat
,
2251 GLsizei width
, GLsizei height
, GLsizei samples
,
2254 GET_CURRENT_CONTEXT(ctx
);
2256 if (MESA_VERBOSE
& VERBOSE_API
) {
2257 if (samples
== NO_SAMPLES
)
2258 _mesa_debug(ctx
, "%s(%u, %s, %d, %d)\n",
2260 _mesa_enum_to_string(internalFormat
),
2263 _mesa_debug(ctx
, "%s(%u, %s, %d, %d, %d)\n",
2265 _mesa_enum_to_string(internalFormat
),
2266 width
, height
, samples
);
2269 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2270 if (!rb
|| rb
== &DummyRenderbuffer
) {
2271 /* ID was reserved, but no real renderbuffer object made yet */
2272 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid renderbuffer %u)",
2273 func
, renderbuffer
);
2277 renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
, func
);
2281 * Helper function used by _mesa_RenderbufferStorage() and
2282 * _mesa_RenderbufferStorageMultisample().
2283 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorage().
2286 renderbuffer_storage_target(GLenum target
, GLenum internalFormat
,
2287 GLsizei width
, GLsizei height
, GLsizei samples
,
2290 GET_CURRENT_CONTEXT(ctx
);
2292 if (MESA_VERBOSE
& VERBOSE_API
) {
2293 if (samples
== NO_SAMPLES
)
2294 _mesa_debug(ctx
, "%s(%s, %s, %d, %d)\n",
2296 _mesa_enum_to_string(target
),
2297 _mesa_enum_to_string(internalFormat
),
2300 _mesa_debug(ctx
, "%s(%s, %s, %d, %d, %d)\n",
2302 _mesa_enum_to_string(target
),
2303 _mesa_enum_to_string(internalFormat
),
2304 width
, height
, samples
);
2307 if (target
!= GL_RENDERBUFFER_EXT
) {
2308 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
2312 if (!ctx
->CurrentRenderbuffer
) {
2313 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(no renderbuffer bound)",
2318 renderbuffer_storage(ctx
, ctx
->CurrentRenderbuffer
, internalFormat
, width
,
2319 height
, samples
, func
);
2324 _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target
, GLeglImageOES image
)
2326 struct gl_renderbuffer
*rb
;
2327 GET_CURRENT_CONTEXT(ctx
);
2329 if (!ctx
->Extensions
.OES_EGL_image
) {
2330 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2331 "glEGLImageTargetRenderbufferStorageOES(unsupported)");
2335 if (target
!= GL_RENDERBUFFER
) {
2336 _mesa_error(ctx
, GL_INVALID_ENUM
,
2337 "EGLImageTargetRenderbufferStorageOES");
2341 rb
= ctx
->CurrentRenderbuffer
;
2343 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2344 "EGLImageTargetRenderbufferStorageOES");
2348 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2350 ctx
->Driver
.EGLImageTargetRenderbufferStorage(ctx
, rb
, image
);
2355 * Helper function for _mesa_GetRenderbufferParameteriv() and
2356 * _mesa_GetFramebufferAttachmentParameteriv()
2357 * We have to be careful to respect the base format. For example, if a
2358 * renderbuffer/texture was created with internalFormat=GL_RGB but the
2359 * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
2360 * we need to return zero.
2363 get_component_bits(GLenum pname
, GLenum baseFormat
, mesa_format format
)
2365 if (_mesa_base_format_has_channel(baseFormat
, pname
))
2366 return _mesa_get_format_bits(format
, pname
);
2374 _mesa_RenderbufferStorage(GLenum target
, GLenum internalFormat
,
2375 GLsizei width
, GLsizei height
)
2377 /* GL_ARB_fbo says calling this function is equivalent to calling
2378 * glRenderbufferStorageMultisample() with samples=0. We pass in
2379 * a token value here just for error reporting purposes.
2381 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2382 NO_SAMPLES
, "glRenderbufferStorage");
2387 _mesa_RenderbufferStorageMultisample(GLenum target
, GLsizei samples
,
2388 GLenum internalFormat
,
2389 GLsizei width
, GLsizei height
)
2391 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2392 samples
, "glRenderbufferStorageMultisample");
2397 * OpenGL ES version of glRenderBufferStorage.
2400 _es_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
2401 GLsizei width
, GLsizei height
)
2403 switch (internalFormat
) {
2405 /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
2406 /* choose a closest format */
2407 internalFormat
= GL_RGB5
;
2413 renderbuffer_storage_target(target
, internalFormat
, width
, height
, 0,
2414 "glRenderbufferStorageEXT");
2418 _mesa_NamedRenderbufferStorage(GLuint renderbuffer
, GLenum internalformat
,
2419 GLsizei width
, GLsizei height
)
2421 /* GL_ARB_fbo says calling this function is equivalent to calling
2422 * glRenderbufferStorageMultisample() with samples=0. We pass in
2423 * a token value here just for error reporting purposes.
2425 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2426 NO_SAMPLES
, "glNamedRenderbufferStorage");
2430 _mesa_NamedRenderbufferStorageMultisample(GLuint renderbuffer
, GLsizei samples
,
2431 GLenum internalformat
,
2432 GLsizei width
, GLsizei height
)
2434 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2436 "glNamedRenderbufferStorageMultisample");
2441 get_render_buffer_parameteriv(struct gl_context
*ctx
,
2442 struct gl_renderbuffer
*rb
, GLenum pname
,
2443 GLint
*params
, const char *func
)
2445 /* No need to flush here since we're just quering state which is
2446 * not effected by rendering.
2450 case GL_RENDERBUFFER_WIDTH_EXT
:
2451 *params
= rb
->Width
;
2453 case GL_RENDERBUFFER_HEIGHT_EXT
:
2454 *params
= rb
->Height
;
2456 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
2457 *params
= rb
->InternalFormat
;
2459 case GL_RENDERBUFFER_RED_SIZE_EXT
:
2460 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
2461 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
2462 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
2463 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
2464 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
2465 *params
= get_component_bits(pname
, rb
->_BaseFormat
, rb
->Format
);
2467 case GL_RENDERBUFFER_SAMPLES
:
2468 if ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_framebuffer_object
)
2469 || _mesa_is_gles3(ctx
)) {
2470 *params
= rb
->NumSamples
;
2475 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname=%s)", func
,
2476 _mesa_enum_to_string(pname
));
2483 _mesa_GetRenderbufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
2485 GET_CURRENT_CONTEXT(ctx
);
2487 if (target
!= GL_RENDERBUFFER_EXT
) {
2488 _mesa_error(ctx
, GL_INVALID_ENUM
,
2489 "glGetRenderbufferParameterivEXT(target)");
2493 if (!ctx
->CurrentRenderbuffer
) {
2494 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetRenderbufferParameterivEXT"
2495 "(no renderbuffer bound)");
2499 get_render_buffer_parameteriv(ctx
, ctx
->CurrentRenderbuffer
, pname
,
2500 params
, "glGetRenderbufferParameteriv");
2505 _mesa_GetNamedRenderbufferParameteriv(GLuint renderbuffer
, GLenum pname
,
2508 GET_CURRENT_CONTEXT(ctx
);
2510 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2511 if (!rb
|| rb
== &DummyRenderbuffer
) {
2512 /* ID was reserved, but no real renderbuffer object made yet */
2513 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetNamedRenderbufferParameteriv"
2514 "(invalid renderbuffer %i)", renderbuffer
);
2518 get_render_buffer_parameteriv(ctx
, rb
, pname
, params
,
2519 "glGetNamedRenderbufferParameteriv");
2523 GLboolean GLAPIENTRY
2524 _mesa_IsFramebuffer(GLuint framebuffer
)
2526 GET_CURRENT_CONTEXT(ctx
);
2527 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
2529 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2530 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
2538 * Check if any of the attachments of the given framebuffer are textures
2539 * (render to texture). Call ctx->Driver.RenderTexture() for such
2543 check_begin_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2546 assert(ctx
->Driver
.RenderTexture
);
2548 if (_mesa_is_winsys_fbo(fb
))
2549 return; /* can't render to texture with winsys framebuffers */
2551 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2552 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2553 if (att
->Texture
&& att
->Renderbuffer
->TexImage
2554 && driver_RenderTexture_is_safe(att
)) {
2555 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
2562 * Examine all the framebuffer's attachments to see if any are textures.
2563 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
2564 * notify the device driver that the texture image may have changed.
2567 check_end_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2569 /* Skip if we know NeedsFinishRenderTexture won't be set. */
2570 if (_mesa_is_winsys_fbo(fb
) && !ctx
->Driver
.BindRenderbufferTexImage
)
2573 if (ctx
->Driver
.FinishRenderTexture
) {
2575 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2576 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2577 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
2578 if (rb
&& rb
->NeedsFinishRenderTexture
) {
2579 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
2587 bind_framebuffer(GLenum target
, GLuint framebuffer
, bool allow_user_names
)
2589 struct gl_framebuffer
*newDrawFb
, *newReadFb
;
2590 GLboolean bindReadBuf
, bindDrawBuf
;
2591 GET_CURRENT_CONTEXT(ctx
);
2594 case GL_DRAW_FRAMEBUFFER_EXT
:
2595 bindDrawBuf
= GL_TRUE
;
2596 bindReadBuf
= GL_FALSE
;
2598 case GL_READ_FRAMEBUFFER_EXT
:
2599 bindDrawBuf
= GL_FALSE
;
2600 bindReadBuf
= GL_TRUE
;
2602 case GL_FRAMEBUFFER_EXT
:
2603 bindDrawBuf
= GL_TRUE
;
2604 bindReadBuf
= GL_TRUE
;
2607 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
2612 /* Binding a user-created framebuffer object */
2613 newDrawFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2614 if (newDrawFb
== &DummyFramebuffer
) {
2615 /* ID was reserved, but no real framebuffer object made yet */
2618 else if (!newDrawFb
&& !allow_user_names
) {
2619 /* All FBO IDs must be Gen'd */
2620 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindFramebuffer(buffer)");
2625 /* create new framebuffer object */
2626 newDrawFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
2628 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
2631 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newDrawFb
);
2633 newReadFb
= newDrawFb
;
2636 /* Binding the window system framebuffer (which was originally set
2637 * with MakeCurrent).
2639 newDrawFb
= ctx
->WinSysDrawBuffer
;
2640 newReadFb
= ctx
->WinSysReadBuffer
;
2643 _mesa_bind_framebuffers(ctx
,
2644 bindDrawBuf
? newDrawFb
: ctx
->DrawBuffer
,
2645 bindReadBuf
? newReadFb
: ctx
->ReadBuffer
);
2649 _mesa_bind_framebuffers(struct gl_context
*ctx
,
2650 struct gl_framebuffer
*newDrawFb
,
2651 struct gl_framebuffer
*newReadFb
)
2653 struct gl_framebuffer
*const oldDrawFb
= ctx
->DrawBuffer
;
2654 struct gl_framebuffer
*const oldReadFb
= ctx
->ReadBuffer
;
2655 const bool bindDrawBuf
= oldDrawFb
!= newDrawFb
;
2656 const bool bindReadBuf
= oldReadFb
!= newReadFb
;
2659 assert(newDrawFb
!= &DummyFramebuffer
);
2662 * OK, now bind the new Draw/Read framebuffers, if they're changing.
2664 * We also check if we're beginning and/or ending render-to-texture.
2665 * When a framebuffer with texture attachments is unbound, call
2666 * ctx->Driver.FinishRenderTexture().
2667 * When a framebuffer with texture attachments is bound, call
2668 * ctx->Driver.RenderTexture().
2670 * Note that if the ReadBuffer has texture attachments we don't consider
2671 * that a render-to-texture case.
2674 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2676 /* check if old readbuffer was render-to-texture */
2677 check_end_texture_render(ctx
, oldReadFb
);
2679 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newReadFb
);
2683 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2685 /* check if old framebuffer had any texture attachments */
2687 check_end_texture_render(ctx
, oldDrawFb
);
2689 /* check if newly bound framebuffer has any texture attachments */
2690 check_begin_texture_render(ctx
, newDrawFb
);
2692 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newDrawFb
);
2695 if ((bindDrawBuf
|| bindReadBuf
) && ctx
->Driver
.BindFramebuffer
) {
2696 /* The few classic drivers that actually hook this function really only
2697 * want to know if the draw framebuffer changed.
2699 ctx
->Driver
.BindFramebuffer(ctx
,
2700 bindDrawBuf
? GL_FRAMEBUFFER
: GL_READ_FRAMEBUFFER
,
2701 newDrawFb
, newReadFb
);
2706 _mesa_BindFramebuffer(GLenum target
, GLuint framebuffer
)
2708 GET_CURRENT_CONTEXT(ctx
);
2710 /* OpenGL ES glBindFramebuffer and glBindFramebufferOES use this same entry
2711 * point, but they allow the use of user-generated names.
2713 bind_framebuffer(target
, framebuffer
, _mesa_is_gles(ctx
));
2718 _mesa_BindFramebufferEXT(GLenum target
, GLuint framebuffer
)
2720 /* This function should not be in the dispatch table for core profile /
2721 * OpenGL 3.1, so execution should never get here in those cases -- no
2722 * need for an explicit test.
2724 bind_framebuffer(target
, framebuffer
, true);
2729 _mesa_DeleteFramebuffers(GLsizei n
, const GLuint
*framebuffers
)
2732 GET_CURRENT_CONTEXT(ctx
);
2735 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteFramebuffers(n < 0)");
2739 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2741 for (i
= 0; i
< n
; i
++) {
2742 if (framebuffers
[i
] > 0) {
2743 struct gl_framebuffer
*fb
;
2744 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
2746 assert(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
2748 /* check if deleting currently bound framebuffer object */
2749 if (fb
== ctx
->DrawBuffer
) {
2751 assert(fb
->RefCount
>= 2);
2752 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, 0);
2754 if (fb
== ctx
->ReadBuffer
) {
2756 assert(fb
->RefCount
>= 2);
2757 _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER
, 0);
2760 /* remove from hash table immediately, to free the ID */
2761 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
2763 if (fb
!= &DummyFramebuffer
) {
2764 /* But the object will not be freed until it's no longer
2765 * bound in any context.
2767 _mesa_reference_framebuffer(&fb
, NULL
);
2776 * This is the implementation for glGenFramebuffers and glCreateFramebuffers.
2777 * It is not exposed to the rest of Mesa to encourage the use of
2778 * nameless buffers in driver internals.
2781 create_framebuffers(GLsizei n
, GLuint
*framebuffers
, bool dsa
)
2783 GET_CURRENT_CONTEXT(ctx
);
2786 struct gl_framebuffer
*fb
;
2788 const char *func
= dsa
? "glCreateFramebuffers" : "glGenFramebuffers";
2791 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n < 0)", func
);
2798 _mesa_HashLockMutex(ctx
->Shared
->FrameBuffers
);
2800 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
2802 for (i
= 0; i
< n
; i
++) {
2803 GLuint name
= first
+ i
;
2804 framebuffers
[i
] = name
;
2807 fb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffers
[i
]);
2809 _mesa_HashUnlockMutex(ctx
->Shared
->FrameBuffers
);
2810 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
2815 fb
= &DummyFramebuffer
;
2817 _mesa_HashInsertLocked(ctx
->Shared
->FrameBuffers
, name
, fb
);
2820 _mesa_HashUnlockMutex(ctx
->Shared
->FrameBuffers
);
2825 _mesa_GenFramebuffers(GLsizei n
, GLuint
*framebuffers
)
2827 create_framebuffers(n
, framebuffers
, false);
2832 _mesa_CreateFramebuffers(GLsizei n
, GLuint
*framebuffers
)
2834 create_framebuffers(n
, framebuffers
, true);
2839 _mesa_check_framebuffer_status(struct gl_context
*ctx
,
2840 struct gl_framebuffer
*buffer
)
2842 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
2844 if (_mesa_is_winsys_fbo(buffer
)) {
2845 /* EGL_KHR_surfaceless_context allows the winsys FBO to be incomplete. */
2846 if (buffer
!= &IncompleteFramebuffer
) {
2847 return GL_FRAMEBUFFER_COMPLETE_EXT
;
2849 return GL_FRAMEBUFFER_UNDEFINED
;
2853 /* No need to flush here */
2855 if (buffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE
) {
2856 _mesa_test_framebuffer_completeness(ctx
, buffer
);
2859 return buffer
->_Status
;
2864 _mesa_CheckFramebufferStatus_no_error(GLenum target
)
2866 GET_CURRENT_CONTEXT(ctx
);
2868 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
2869 return _mesa_check_framebuffer_status(ctx
, fb
);
2874 _mesa_CheckFramebufferStatus(GLenum target
)
2876 struct gl_framebuffer
*fb
;
2877 GET_CURRENT_CONTEXT(ctx
);
2879 if (MESA_VERBOSE
& VERBOSE_API
)
2880 _mesa_debug(ctx
, "glCheckFramebufferStatus(%s)\n",
2881 _mesa_enum_to_string(target
));
2883 fb
= get_framebuffer_target(ctx
, target
);
2885 _mesa_error(ctx
, GL_INVALID_ENUM
,
2886 "glCheckFramebufferStatus(invalid target %s)",
2887 _mesa_enum_to_string(target
));
2891 return _mesa_check_framebuffer_status(ctx
, fb
);
2896 _mesa_CheckNamedFramebufferStatus(GLuint framebuffer
, GLenum target
)
2898 struct gl_framebuffer
*fb
;
2899 GET_CURRENT_CONTEXT(ctx
);
2901 /* Validate the target (for conformance's sake) and grab a reference to the
2902 * default framebuffer in case framebuffer = 0.
2903 * Section 9.4 Framebuffer Completeness of the OpenGL 4.5 core spec
2904 * (30.10.2014, PDF page 336) says:
2905 * "If framebuffer is zero, then the status of the default read or
2906 * draw framebuffer (as determined by target) is returned."
2909 case GL_DRAW_FRAMEBUFFER
:
2910 case GL_FRAMEBUFFER
:
2911 fb
= ctx
->WinSysDrawBuffer
;
2913 case GL_READ_FRAMEBUFFER
:
2914 fb
= ctx
->WinSysReadBuffer
;
2917 _mesa_error(ctx
, GL_INVALID_ENUM
,
2918 "glCheckNamedFramebufferStatus(invalid target %s)",
2919 _mesa_enum_to_string(target
));
2924 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
2925 "glCheckNamedFramebufferStatus");
2930 return _mesa_check_framebuffer_status(ctx
, fb
);
2935 * Replicate the src attachment point. Used by framebuffer_texture() when
2936 * the same texture is attached at GL_DEPTH_ATTACHMENT and
2937 * GL_STENCIL_ATTACHMENT.
2940 reuse_framebuffer_texture_attachment(struct gl_framebuffer
*fb
,
2941 gl_buffer_index dst
,
2942 gl_buffer_index src
)
2944 struct gl_renderbuffer_attachment
*dst_att
= &fb
->Attachment
[dst
];
2945 struct gl_renderbuffer_attachment
*src_att
= &fb
->Attachment
[src
];
2947 assert(src_att
->Texture
!= NULL
);
2948 assert(src_att
->Renderbuffer
!= NULL
);
2950 _mesa_reference_texobj(&dst_att
->Texture
, src_att
->Texture
);
2951 _mesa_reference_renderbuffer(&dst_att
->Renderbuffer
, src_att
->Renderbuffer
);
2952 dst_att
->Type
= src_att
->Type
;
2953 dst_att
->Complete
= src_att
->Complete
;
2954 dst_att
->TextureLevel
= src_att
->TextureLevel
;
2955 dst_att
->CubeMapFace
= src_att
->CubeMapFace
;
2956 dst_att
->Zoffset
= src_att
->Zoffset
;
2957 dst_att
->Layered
= src_att
->Layered
;
2961 static struct gl_texture_object
*
2962 get_texture_for_framebuffer(struct gl_context
*ctx
, GLuint texture
)
2967 return _mesa_lookup_texture(ctx
, texture
);
2972 * Common code called by gl*FramebufferTexture*() to retrieve the correct
2973 * texture object pointer.
2975 * \param texObj where the pointer to the texture object is returned. Note
2976 * that a successful call may return texObj = NULL.
2978 * \return true if no errors, false if errors
2981 get_texture_for_framebuffer_err(struct gl_context
*ctx
, GLuint texture
,
2982 bool layered
, const char *caller
,
2983 struct gl_texture_object
**texObj
)
2985 *texObj
= NULL
; /* This will get returned if texture = 0. */
2990 *texObj
= _mesa_lookup_texture(ctx
, texture
);
2991 if (*texObj
== NULL
|| (*texObj
)->Target
== 0) {
2992 /* Can't render to a non-existent texture object.
2994 * The OpenGL 4.5 core spec (02.02.2015) in Section 9.2 Binding and
2995 * Managing Framebuffer Objects specifies a different error
2996 * depending upon the calling function (PDF pages 325-328).
2997 * *FramebufferTexture (where layered = GL_TRUE) throws invalid
2998 * value, while the other commands throw invalid operation (where
2999 * layered = GL_FALSE).
3001 const GLenum error
= layered
? GL_INVALID_VALUE
:
3002 GL_INVALID_OPERATION
;
3003 _mesa_error(ctx
, error
,
3004 "%s(non-existent texture %u)", caller
, texture
);
3013 * Common code called by gl*FramebufferTexture() to verify the texture target
3014 * and decide whether or not the attachment should truly be considered
3017 * \param layered true if attachment should be considered layered, false if
3020 * \return true if no errors, false if errors
3023 check_layered_texture_target(struct gl_context
*ctx
, GLenum target
,
3024 const char *caller
, GLboolean
*layered
)
3030 case GL_TEXTURE_1D_ARRAY_EXT
:
3031 case GL_TEXTURE_2D_ARRAY_EXT
:
3032 case GL_TEXTURE_CUBE_MAP
:
3033 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3034 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3038 case GL_TEXTURE_RECTANGLE
:
3039 case GL_TEXTURE_2D_MULTISAMPLE
:
3040 /* These texture types are valid to pass to
3041 * glFramebufferTexture(), but since they aren't layered, it
3042 * is equivalent to calling glFramebufferTexture{1D,2D}().
3044 *layered
= GL_FALSE
;
3048 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3049 "%s(invalid texture target %s)", caller
,
3050 _mesa_enum_to_string(target
));
3056 * Common code called by gl*FramebufferTextureLayer() to verify the texture
3059 * \return true if no errors, false if errors
3062 check_texture_target(struct gl_context
*ctx
, GLenum target
,
3065 /* We're being called by glFramebufferTextureLayer().
3066 * The only legal texture types for that function are 3D,
3067 * cube-map, and 1D/2D/cube-map array textures.
3069 * We don't need to check for GL_ARB_texture_cube_map_array because the
3070 * application wouldn't have been able to create a texture with a
3071 * GL_TEXTURE_CUBE_MAP_ARRAY target if the extension were not enabled.
3075 case GL_TEXTURE_1D_ARRAY
:
3076 case GL_TEXTURE_2D_ARRAY
:
3077 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3078 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3080 case GL_TEXTURE_CUBE_MAP
:
3081 /* We don't need to check the extension (GL_ARB_direct_state_access) or
3082 * GL version (4.5) for GL_TEXTURE_CUBE_MAP because DSA is always
3083 * enabled in core profile. This can be called from
3084 * _mesa_FramebufferTextureLayer in compatibility profile (OpenGL 3.0),
3085 * so we do have to check the profile.
3087 return ctx
->API
== API_OPENGL_CORE
;
3090 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3091 "%s(invalid texture target %s)", caller
,
3092 _mesa_enum_to_string(target
));
3098 * Common code called by glFramebufferTexture*D() to verify the texture
3101 * \return true if no errors, false if errors
3104 check_textarget(struct gl_context
*ctx
, int dims
, GLenum target
,
3105 GLenum textarget
, const char *caller
)
3109 switch (textarget
) {
3113 case GL_TEXTURE_1D_ARRAY
:
3114 err
= dims
!= 1 || !ctx
->Extensions
.EXT_texture_array
;
3119 case GL_TEXTURE_2D_ARRAY
:
3120 err
= dims
!= 2 || !ctx
->Extensions
.EXT_texture_array
||
3121 (_mesa_is_gles(ctx
) && ctx
->Version
< 30);
3123 case GL_TEXTURE_2D_MULTISAMPLE
:
3124 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3126 !ctx
->Extensions
.ARB_texture_multisample
||
3127 (_mesa_is_gles(ctx
) && ctx
->Version
< 31);
3129 case GL_TEXTURE_RECTANGLE
:
3130 err
= dims
!= 2 || _mesa_is_gles(ctx
) ||
3131 !ctx
->Extensions
.NV_texture_rectangle
;
3133 case GL_TEXTURE_CUBE_MAP
:
3134 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3137 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
3138 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
3139 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
3140 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
3141 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
3142 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
3143 err
= dims
!= 2 || !ctx
->Extensions
.ARB_texture_cube_map
;
3149 _mesa_error(ctx
, GL_INVALID_ENUM
,
3150 "%s(unknown textarget 0x%x)", caller
, textarget
);
3155 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3156 "%s(invalid textarget %s)",
3157 caller
, _mesa_enum_to_string(textarget
));
3161 /* Make sure textarget is consistent with the texture's type */
3162 err
= (target
== GL_TEXTURE_CUBE_MAP
) ?
3163 !_mesa_is_cube_face(textarget
): (target
!= textarget
);
3166 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3167 "%s(mismatched texture target)", caller
);
3176 * Common code called by gl*FramebufferTextureLayer() and
3177 * glFramebufferTexture3D() to validate the layer.
3179 * \return true if no errors, false if errors
3182 check_layer(struct gl_context
*ctx
, GLenum target
, GLint layer
,
3185 /* Page 306 (page 328 of the PDF) of the OpenGL 4.5 (Core Profile)
3188 * "An INVALID_VALUE error is generated if texture is non-zero
3189 * and layer is negative."
3192 _mesa_error(ctx
, GL_INVALID_VALUE
,
3193 "%s(layer %u < 0)", caller
, layer
);
3197 if (target
== GL_TEXTURE_3D
) {
3198 const GLuint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
3199 if (layer
>= maxSize
) {
3200 _mesa_error(ctx
, GL_INVALID_VALUE
,
3201 "%s(invalid layer %u)", caller
, layer
);
3205 else if ((target
== GL_TEXTURE_1D_ARRAY
) ||
3206 (target
== GL_TEXTURE_2D_ARRAY
) ||
3207 (target
== GL_TEXTURE_CUBE_MAP_ARRAY
) ||
3208 (target
== GL_TEXTURE_2D_MULTISAMPLE_ARRAY
)) {
3209 if (layer
>= ctx
->Const
.MaxArrayTextureLayers
) {
3210 _mesa_error(ctx
, GL_INVALID_VALUE
,
3211 "%s(layer %u >= GL_MAX_ARRAY_TEXTURE_LAYERS)",
3216 else if (target
== GL_TEXTURE_CUBE_MAP
) {
3218 _mesa_error(ctx
, GL_INVALID_VALUE
,
3219 "%s(layer %u >= 6)", caller
, layer
);
3229 * Common code called by all gl*FramebufferTexture*() entry points to verify
3232 * \return true if no errors, false if errors
3235 check_level(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
3236 GLenum target
, GLint level
, const char *caller
)
3238 /* Section 9.2.8 of the OpenGL 4.6 specification says:
3240 * "If texture refers to an immutable-format texture, level must be
3241 * greater than or equal to zero and smaller than the value of
3242 * TEXTURE_VIEW_NUM_LEVELS for texture."
3244 const int max_levels
= texObj
->Immutable
? texObj
->ImmutableLevels
:
3245 _mesa_max_texture_levels(ctx
, target
);
3247 if (level
< 0 || level
>= max_levels
) {
3248 _mesa_error(ctx
, GL_INVALID_VALUE
,
3249 "%s(invalid level %d)", caller
, level
);
3257 struct gl_renderbuffer_attachment
*
3258 _mesa_get_and_validate_attachment(struct gl_context
*ctx
,
3259 struct gl_framebuffer
*fb
,
3260 GLenum attachment
, const char *caller
)
3262 /* The window-system framebuffer object is immutable */
3263 if (_mesa_is_winsys_fbo(fb
)) {
3264 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(window-system framebuffer)",
3269 /* Not a hash lookup, so we can afford to get the attachment here. */
3270 bool is_color_attachment
;
3271 struct gl_renderbuffer_attachment
*att
=
3272 get_attachment(ctx
, fb
, attachment
, &is_color_attachment
);
3274 if (is_color_attachment
) {
3275 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3276 "%s(invalid color attachment %s)", caller
,
3277 _mesa_enum_to_string(attachment
));
3279 _mesa_error(ctx
, GL_INVALID_ENUM
,
3280 "%s(invalid attachment %s)", caller
,
3281 _mesa_enum_to_string(attachment
));
3291 _mesa_framebuffer_texture(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
3293 struct gl_renderbuffer_attachment
*att
,
3294 struct gl_texture_object
*texObj
, GLenum textarget
,
3295 GLint level
, GLuint layer
, GLboolean layered
)
3297 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3299 simple_mtx_lock(&fb
->Mutex
);
3301 if (attachment
== GL_DEPTH_ATTACHMENT
&&
3302 texObj
== fb
->Attachment
[BUFFER_STENCIL
].Texture
&&
3303 level
== fb
->Attachment
[BUFFER_STENCIL
].TextureLevel
&&
3304 _mesa_tex_target_to_face(textarget
) ==
3305 fb
->Attachment
[BUFFER_STENCIL
].CubeMapFace
&&
3306 layer
== fb
->Attachment
[BUFFER_STENCIL
].Zoffset
) {
3307 /* The texture object is already attached to the stencil attachment
3308 * point. Don't create a new renderbuffer; just reuse the stencil
3309 * attachment's. This is required to prevent a GL error in
3310 * glGetFramebufferAttachmentParameteriv(GL_DEPTH_STENCIL).
3312 reuse_framebuffer_texture_attachment(fb
, BUFFER_DEPTH
,
3314 } else if (attachment
== GL_STENCIL_ATTACHMENT
&&
3315 texObj
== fb
->Attachment
[BUFFER_DEPTH
].Texture
&&
3316 level
== fb
->Attachment
[BUFFER_DEPTH
].TextureLevel
&&
3317 _mesa_tex_target_to_face(textarget
) ==
3318 fb
->Attachment
[BUFFER_DEPTH
].CubeMapFace
&&
3319 layer
== fb
->Attachment
[BUFFER_DEPTH
].Zoffset
) {
3320 /* As above, but with depth and stencil transposed. */
3321 reuse_framebuffer_texture_attachment(fb
, BUFFER_STENCIL
,
3324 set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
3325 level
, layer
, layered
);
3327 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3328 /* Above we created a new renderbuffer and attached it to the
3329 * depth attachment point. Now attach it to the stencil attachment
3332 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3333 reuse_framebuffer_texture_attachment(fb
,BUFFER_STENCIL
,
3338 /* Set the render-to-texture flag. We'll check this flag in
3339 * glTexImage() and friends to determine if we need to revalidate
3340 * any FBOs that might be rendering into this texture.
3341 * This flag never gets cleared since it's non-trivial to determine
3342 * when all FBOs might be done rendering to this texture. That's OK
3343 * though since it's uncommon to render to a texture then repeatedly
3344 * call glTexImage() to change images in the texture.
3346 texObj
->_RenderToTexture
= GL_TRUE
;
3349 remove_attachment(ctx
, att
);
3350 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3351 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3352 remove_attachment(ctx
, &fb
->Attachment
[BUFFER_STENCIL
]);
3356 invalidate_framebuffer(fb
);
3358 simple_mtx_unlock(&fb
->Mutex
);
3363 framebuffer_texture_with_dims_no_error(GLenum target
, GLenum attachment
,
3364 GLenum textarget
, GLuint texture
,
3365 GLint level
, GLint layer
)
3367 GET_CURRENT_CONTEXT(ctx
);
3369 /* Get the framebuffer object */
3370 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
3372 /* Get the texture object */
3373 struct gl_texture_object
*texObj
=
3374 get_texture_for_framebuffer(ctx
, texture
);
3376 struct gl_renderbuffer_attachment
*att
=
3377 get_attachment(ctx
, fb
, attachment
, NULL
);
3379 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3380 level
, layer
, GL_FALSE
);
3385 framebuffer_texture_with_dims(int dims
, GLenum target
,
3386 GLenum attachment
, GLenum textarget
,
3387 GLuint texture
, GLint level
, GLint layer
,
3390 GET_CURRENT_CONTEXT(ctx
);
3391 struct gl_framebuffer
*fb
;
3392 struct gl_texture_object
*texObj
;
3394 /* Get the framebuffer object */
3395 fb
= get_framebuffer_target(ctx
, target
);
3397 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", caller
,
3398 _mesa_enum_to_string(target
));
3402 /* Get the texture object */
3403 if (!get_texture_for_framebuffer_err(ctx
, texture
, false, caller
, &texObj
))
3407 if (!check_textarget(ctx
, dims
, texObj
->Target
, textarget
, caller
))
3410 if ((dims
== 3) && !check_layer(ctx
, texObj
->Target
, layer
, caller
))
3413 if (!check_level(ctx
, texObj
, textarget
, level
, caller
))
3417 struct gl_renderbuffer_attachment
*att
=
3418 _mesa_get_and_validate_attachment(ctx
, fb
, attachment
, caller
);
3422 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3423 level
, layer
, GL_FALSE
);
3428 _mesa_FramebufferTexture1D_no_error(GLenum target
, GLenum attachment
,
3429 GLenum textarget
, GLuint texture
,
3432 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3438 _mesa_FramebufferTexture1D(GLenum target
, GLenum attachment
,
3439 GLenum textarget
, GLuint texture
, GLint level
)
3441 framebuffer_texture_with_dims(1, target
, attachment
, textarget
, texture
,
3442 level
, 0, "glFramebufferTexture1D");
3447 _mesa_FramebufferTexture2D_no_error(GLenum target
, GLenum attachment
,
3448 GLenum textarget
, GLuint texture
,
3451 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3457 _mesa_FramebufferTexture2D(GLenum target
, GLenum attachment
,
3458 GLenum textarget
, GLuint texture
, GLint level
)
3460 framebuffer_texture_with_dims(2, target
, attachment
, textarget
, texture
,
3461 level
, 0, "glFramebufferTexture2D");
3466 _mesa_FramebufferTexture3D_no_error(GLenum target
, GLenum attachment
,
3467 GLenum textarget
, GLuint texture
,
3468 GLint level
, GLint layer
)
3470 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3471 texture
, level
, layer
);
3476 _mesa_FramebufferTexture3D(GLenum target
, GLenum attachment
,
3477 GLenum textarget
, GLuint texture
,
3478 GLint level
, GLint layer
)
3480 framebuffer_texture_with_dims(3, target
, attachment
, textarget
, texture
,
3481 level
, layer
, "glFramebufferTexture3D");
3485 static ALWAYS_INLINE
void
3486 frame_buffer_texture(GLuint framebuffer
, GLenum target
,
3487 GLenum attachment
, GLuint texture
,
3488 GLint level
, GLint layer
, const char *func
,
3489 bool dsa
, bool no_error
, bool check_layered
)
3491 GET_CURRENT_CONTEXT(ctx
);
3492 GLboolean layered
= GL_FALSE
;
3494 if (!no_error
&& check_layered
) {
3495 if (!_mesa_has_geometry_shaders(ctx
)) {
3496 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3497 "unsupported function (%s) called", func
);
3502 /* Get the framebuffer object */
3503 struct gl_framebuffer
*fb
;
3506 fb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
3508 fb
= get_framebuffer_target(ctx
, target
);
3512 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
, func
);
3516 fb
= get_framebuffer_target(ctx
, target
);
3518 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)",
3519 func
, _mesa_enum_to_string(target
));
3525 /* Get the texture object and framebuffer attachment*/
3526 struct gl_renderbuffer_attachment
*att
;
3527 struct gl_texture_object
*texObj
;
3529 texObj
= get_texture_for_framebuffer(ctx
, texture
);
3530 att
= get_attachment(ctx
, fb
, attachment
, NULL
);
3532 if (!get_texture_for_framebuffer_err(ctx
, texture
, check_layered
, func
,
3536 att
= _mesa_get_and_validate_attachment(ctx
, fb
, attachment
, func
);
3541 GLenum textarget
= 0;
3543 if (check_layered
) {
3544 /* We do this regardless of no_error because this sets layered */
3545 if (!check_layered_texture_target(ctx
, texObj
->Target
, func
,
3551 if (!check_layered
) {
3552 if (!check_texture_target(ctx
, texObj
->Target
, func
))
3555 if (!check_layer(ctx
, texObj
->Target
, layer
, func
))
3559 if (!check_level(ctx
, texObj
, texObj
->Target
, level
, func
))
3563 if (!check_layered
&& texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3564 assert(layer
>= 0 && layer
< 6);
3565 textarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ layer
;
3570 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3571 level
, layer
, layered
);
3575 _mesa_FramebufferTextureLayer_no_error(GLenum target
, GLenum attachment
,
3576 GLuint texture
, GLint level
,
3579 frame_buffer_texture(0, target
, attachment
, texture
, level
, layer
,
3580 "glFramebufferTextureLayer", false, true, false);
3585 _mesa_FramebufferTextureLayer(GLenum target
, GLenum attachment
,
3586 GLuint texture
, GLint level
, GLint layer
)
3588 frame_buffer_texture(0, target
, attachment
, texture
, level
, layer
,
3589 "glFramebufferTextureLayer", false, false, false);
3594 _mesa_NamedFramebufferTextureLayer_no_error(GLuint framebuffer
,
3596 GLuint texture
, GLint level
,
3599 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, layer
,
3600 "glNamedFramebufferTextureLayer", true, true, false);
3605 _mesa_NamedFramebufferTextureLayer(GLuint framebuffer
, GLenum attachment
,
3606 GLuint texture
, GLint level
, GLint layer
)
3608 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, layer
,
3609 "glNamedFramebufferTextureLayer", true, false, false);
3614 _mesa_FramebufferTexture_no_error(GLenum target
, GLenum attachment
,
3615 GLuint texture
, GLint level
)
3617 frame_buffer_texture(0, target
, attachment
, texture
, level
, 0,
3618 "glFramebufferTexture", false, true, true);
3623 _mesa_FramebufferTexture(GLenum target
, GLenum attachment
,
3624 GLuint texture
, GLint level
)
3626 frame_buffer_texture(0, target
, attachment
, texture
, level
, 0,
3627 "glFramebufferTexture", false, false, true);
3631 _mesa_NamedFramebufferTexture_no_error(GLuint framebuffer
, GLenum attachment
,
3632 GLuint texture
, GLint level
)
3634 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, 0,
3635 "glNamedFramebufferTexture", true, true, true);
3640 _mesa_NamedFramebufferTexture(GLuint framebuffer
, GLenum attachment
,
3641 GLuint texture
, GLint level
)
3643 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, 0,
3644 "glNamedFramebufferTexture", true, false, true);
3649 _mesa_framebuffer_renderbuffer(struct gl_context
*ctx
,
3650 struct gl_framebuffer
*fb
,
3652 struct gl_renderbuffer
*rb
)
3654 assert(!_mesa_is_winsys_fbo(fb
));
3656 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3658 assert(ctx
->Driver
.FramebufferRenderbuffer
);
3659 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
3661 /* Some subsequent GL commands may depend on the framebuffer's visual
3662 * after the binding is updated. Update visual info now.
3664 _mesa_update_framebuffer_visual(ctx
, fb
);
3667 static ALWAYS_INLINE
void
3668 framebuffer_renderbuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
3669 GLenum attachment
, GLenum renderbuffertarget
,
3670 GLuint renderbuffer
, const char *func
, bool no_error
)
3672 struct gl_renderbuffer_attachment
*att
;
3673 struct gl_renderbuffer
*rb
;
3674 bool is_color_attachment
;
3676 if (!no_error
&& renderbuffertarget
!= GL_RENDERBUFFER
) {
3677 _mesa_error(ctx
, GL_INVALID_ENUM
,
3678 "%s(renderbuffertarget is not GL_RENDERBUFFER)", func
);
3684 rb
= _mesa_lookup_renderbuffer_err(ctx
, renderbuffer
, func
);
3688 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
3691 /* remove renderbuffer attachment */
3696 if (_mesa_is_winsys_fbo(fb
)) {
3697 /* Can't attach new renderbuffers to a window system framebuffer */
3698 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3699 "%s(window-system framebuffer)", func
);
3703 att
= get_attachment(ctx
, fb
, attachment
, &is_color_attachment
);
3706 * From OpenGL 4.5 spec, section 9.2.7 "Attaching Renderbuffer Images
3707 * to a Framebuffer":
3709 * "An INVALID_OPERATION error is generated if attachment is
3710 * COLOR_- ATTACHMENTm where m is greater than or equal to the
3711 * value of MAX_COLOR_- ATTACHMENTS ."
3713 * If we are at this point, is because the attachment is not valid, so
3714 * if is_color_attachment is true, is because of the previous reason.
3716 if (is_color_attachment
) {
3717 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3718 "%s(invalid color attachment %s)", func
,
3719 _mesa_enum_to_string(attachment
));
3721 _mesa_error(ctx
, GL_INVALID_ENUM
,
3722 "%s(invalid attachment %s)", func
,
3723 _mesa_enum_to_string(attachment
));
3729 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
&&
3730 rb
&& rb
->Format
!= MESA_FORMAT_NONE
) {
3731 /* make sure the renderbuffer is a depth/stencil format */
3732 const GLenum baseFormat
= _mesa_get_format_base_format(rb
->Format
);
3733 if (baseFormat
!= GL_DEPTH_STENCIL
) {
3734 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3735 "%s(renderbuffer is not DEPTH_STENCIL format)", func
);
3741 _mesa_framebuffer_renderbuffer(ctx
, fb
, attachment
, rb
);
3745 framebuffer_renderbuffer_error(struct gl_context
*ctx
,
3746 struct gl_framebuffer
*fb
, GLenum attachment
,
3747 GLenum renderbuffertarget
,
3748 GLuint renderbuffer
, const char *func
)
3750 framebuffer_renderbuffer(ctx
, fb
, attachment
, renderbuffertarget
,
3751 renderbuffer
, func
, false);
3755 framebuffer_renderbuffer_no_error(struct gl_context
*ctx
,
3756 struct gl_framebuffer
*fb
, GLenum attachment
,
3757 GLenum renderbuffertarget
,
3758 GLuint renderbuffer
, const char *func
)
3760 framebuffer_renderbuffer(ctx
, fb
, attachment
, renderbuffertarget
,
3761 renderbuffer
, func
, true);
3765 _mesa_FramebufferRenderbuffer_no_error(GLenum target
, GLenum attachment
,
3766 GLenum renderbuffertarget
,
3767 GLuint renderbuffer
)
3769 GET_CURRENT_CONTEXT(ctx
);
3771 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
3772 framebuffer_renderbuffer_no_error(ctx
, fb
, attachment
, renderbuffertarget
,
3773 renderbuffer
, "glFramebufferRenderbuffer");
3777 _mesa_FramebufferRenderbuffer(GLenum target
, GLenum attachment
,
3778 GLenum renderbuffertarget
,
3779 GLuint renderbuffer
)
3781 struct gl_framebuffer
*fb
;
3782 GET_CURRENT_CONTEXT(ctx
);
3784 fb
= get_framebuffer_target(ctx
, target
);
3786 _mesa_error(ctx
, GL_INVALID_ENUM
,
3787 "glFramebufferRenderbuffer(invalid target %s)",
3788 _mesa_enum_to_string(target
));
3792 framebuffer_renderbuffer_error(ctx
, fb
, attachment
, renderbuffertarget
,
3793 renderbuffer
, "glFramebufferRenderbuffer");
3797 _mesa_NamedFramebufferRenderbuffer_no_error(GLuint framebuffer
,
3799 GLenum renderbuffertarget
,
3800 GLuint renderbuffer
)
3802 GET_CURRENT_CONTEXT(ctx
);
3804 struct gl_framebuffer
*fb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
3805 framebuffer_renderbuffer_no_error(ctx
, fb
, attachment
, renderbuffertarget
,
3807 "glNamedFramebufferRenderbuffer");
3811 _mesa_NamedFramebufferRenderbuffer(GLuint framebuffer
, GLenum attachment
,
3812 GLenum renderbuffertarget
,
3813 GLuint renderbuffer
)
3815 struct gl_framebuffer
*fb
;
3816 GET_CURRENT_CONTEXT(ctx
);
3818 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3819 "glNamedFramebufferRenderbuffer");
3823 framebuffer_renderbuffer_error(ctx
, fb
, attachment
, renderbuffertarget
,
3825 "glNamedFramebufferRenderbuffer");
3830 get_framebuffer_attachment_parameter(struct gl_context
*ctx
,
3831 struct gl_framebuffer
*buffer
,
3832 GLenum attachment
, GLenum pname
,
3833 GLint
*params
, const char *caller
)
3835 const struct gl_renderbuffer_attachment
*att
;
3836 bool is_color_attachment
= false;
3839 /* The error code for an attachment type of GL_NONE differs between APIs.
3841 * From the ES 2.0.25 specification, page 127:
3842 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
3843 * querying any other pname will generate INVALID_ENUM."
3845 * From the OpenGL 3.0 specification, page 337, or identically,
3846 * the OpenGL ES 3.0.4 specification, page 240:
3848 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, no
3849 * framebuffer is bound to target. In this case querying pname
3850 * FRAMEBUFFER_ATTACHMENT_OBJECT_NAME will return zero, and all other
3851 * queries will generate an INVALID_OPERATION error."
3853 err
= ctx
->API
== API_OPENGLES2
&& ctx
->Version
< 30 ?
3854 GL_INVALID_ENUM
: GL_INVALID_OPERATION
;
3856 if (_mesa_is_winsys_fbo(buffer
)) {
3857 /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
3860 * "If the framebuffer currently bound to target is zero, then
3861 * INVALID_OPERATION is generated."
3863 * The EXT_framebuffer_object spec has the same wording, and the
3864 * OES_framebuffer_object spec refers to the EXT_framebuffer_object
3867 if ((!_mesa_is_desktop_gl(ctx
) ||
3868 !ctx
->Extensions
.ARB_framebuffer_object
)
3869 && !_mesa_is_gles3(ctx
)) {
3870 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3871 "%s(window-system framebuffer)", caller
);
3875 if (_mesa_is_gles3(ctx
) && attachment
!= GL_BACK
&&
3876 attachment
!= GL_DEPTH
&& attachment
!= GL_STENCIL
) {
3877 _mesa_error(ctx
, GL_INVALID_ENUM
,
3878 "%s(invalid attachment %s)", caller
,
3879 _mesa_enum_to_string(attachment
));
3883 /* The specs are not clear about how to handle
3884 * GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME with the default framebuffer,
3885 * but dEQP-GLES3 expects an INVALID_ENUM error. This has also been
3888 * https://cvs.khronos.org/bugzilla/show_bug.cgi?id=12928#c1
3889 * and https://bugs.freedesktop.org/show_bug.cgi?id=31947
3891 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME
) {
3892 _mesa_error(ctx
, GL_INVALID_ENUM
,
3893 "%s(requesting GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME "
3894 "when GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is "
3895 "GL_FRAMEBUFFER_DEFAULT is not allowed)", caller
);
3899 /* the default / window-system FBO */
3900 att
= get_fb0_attachment(ctx
, buffer
, attachment
);
3903 /* user-created framebuffer FBO */
3904 att
= get_attachment(ctx
, buffer
, attachment
, &is_color_attachment
);
3909 * From OpenGL 4.5 spec, section 9.2.3 "Framebuffer Object Queries":
3911 * "An INVALID_OPERATION error is generated if a framebuffer object
3912 * is bound to target and attachment is COLOR_ATTACHMENTm where m is
3913 * greater than or equal to the value of MAX_COLOR_ATTACHMENTS."
3915 * If we are at this point, is because the attachment is not valid, so
3916 * if is_color_attachment is true, is because of the previous reason.
3918 if (is_color_attachment
) {
3919 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid color attachment %s)",
3920 caller
, _mesa_enum_to_string(attachment
));
3922 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", caller
,
3923 _mesa_enum_to_string(attachment
));
3928 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3929 const struct gl_renderbuffer_attachment
*depthAtt
, *stencilAtt
;
3930 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
) {
3931 /* This behavior is first specified in OpenGL 4.4 specification.
3933 * From the OpenGL 4.4 spec page 275:
3934 * "This query cannot be performed for a combined depth+stencil
3935 * attachment, since it does not have a single format."
3937 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3938 "%s(GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE"
3939 " is invalid for depth+stencil attachment)", caller
);
3942 /* the depth and stencil attachments must point to the same buffer */
3943 depthAtt
= get_attachment(ctx
, buffer
, GL_DEPTH_ATTACHMENT
, NULL
);
3944 stencilAtt
= get_attachment(ctx
, buffer
, GL_STENCIL_ATTACHMENT
, NULL
);
3945 if (depthAtt
->Renderbuffer
!= stencilAtt
->Renderbuffer
) {
3946 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3947 "%s(DEPTH/STENCIL attachments differ)", caller
);
3952 /* No need to flush here */
3955 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
3956 /* From the OpenGL spec, 9.2. Binding and Managing Framebuffer Objects:
3958 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
3959 * either no framebuffer is bound to target; or the default framebuffer
3960 * is bound, attachment is DEPTH or STENCIL, and the number of depth or
3961 * stencil bits, respectively, is zero."
3963 * Note that we don't need explicit checks on DEPTH and STENCIL, because
3964 * on the case the spec is pointing, att->Type is already NONE, so we
3965 * just need to check att->Type.
3967 *params
= (_mesa_is_winsys_fbo(buffer
) && att
->Type
!= GL_NONE
) ?
3968 GL_FRAMEBUFFER_DEFAULT
: att
->Type
;
3970 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
3971 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
3972 *params
= att
->Renderbuffer
->Name
;
3974 else if (att
->Type
== GL_TEXTURE
) {
3975 *params
= att
->Texture
->Name
;
3978 assert(att
->Type
== GL_NONE
);
3979 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
3982 goto invalid_pname_enum
;
3986 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
3987 if (att
->Type
== GL_TEXTURE
) {
3988 *params
= att
->TextureLevel
;
3990 else if (att
->Type
== GL_NONE
) {
3991 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
3992 _mesa_enum_to_string(pname
));
3995 goto invalid_pname_enum
;
3998 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
3999 if (att
->Type
== GL_TEXTURE
) {
4000 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
4001 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
4007 else if (att
->Type
== GL_NONE
) {
4008 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4009 _mesa_enum_to_string(pname
));
4012 goto invalid_pname_enum
;
4015 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
4016 if (ctx
->API
== API_OPENGLES
) {
4017 goto invalid_pname_enum
;
4018 } else if (att
->Type
== GL_NONE
) {
4019 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4020 _mesa_enum_to_string(pname
));
4021 } else if (att
->Type
== GL_TEXTURE
) {
4022 if (att
->Texture
&& (att
->Texture
->Target
== GL_TEXTURE_3D
||
4023 att
->Texture
->Target
== GL_TEXTURE_2D_ARRAY
)) {
4024 *params
= att
->Zoffset
;
4031 goto invalid_pname_enum
;
4034 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
:
4035 if ((!_mesa_is_desktop_gl(ctx
) ||
4036 !ctx
->Extensions
.ARB_framebuffer_object
)
4037 && !_mesa_is_gles3(ctx
)) {
4038 goto invalid_pname_enum
;
4040 else if (att
->Type
== GL_NONE
) {
4041 if (_mesa_is_winsys_fbo(buffer
) &&
4042 (attachment
== GL_DEPTH
|| attachment
== GL_STENCIL
)) {
4043 *params
= GL_LINEAR
;
4045 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4046 _mesa_enum_to_string(pname
));
4050 if (ctx
->Extensions
.EXT_framebuffer_sRGB
) {
4052 _mesa_get_format_color_encoding(att
->Renderbuffer
->Format
);
4055 /* According to ARB_framebuffer_sRGB, we should return LINEAR
4056 * if the sRGB conversion is unsupported. */
4057 *params
= GL_LINEAR
;
4061 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
:
4062 if ((ctx
->API
!= API_OPENGL_COMPAT
||
4063 !ctx
->Extensions
.ARB_framebuffer_object
)
4064 && ctx
->API
!= API_OPENGL_CORE
4065 && !_mesa_is_gles3(ctx
)) {
4066 goto invalid_pname_enum
;
4068 else if (att
->Type
== GL_NONE
) {
4069 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4070 _mesa_enum_to_string(pname
));
4073 mesa_format format
= att
->Renderbuffer
->Format
;
4075 /* Page 235 (page 247 of the PDF) in section 6.1.13 of the OpenGL ES
4078 * "If pname is FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE.... If
4079 * attachment is DEPTH_STENCIL_ATTACHMENT the query will fail and
4080 * generate an INVALID_OPERATION error.
4082 if (_mesa_is_gles3(ctx
) &&
4083 attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
4084 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4086 "GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE of "
4087 "GL_DEPTH_STENCIL_ATTACHMENT)", caller
);
4091 if (format
== MESA_FORMAT_S_UINT8
) {
4095 else if (format
== MESA_FORMAT_Z32_FLOAT_S8X24_UINT
) {
4096 /* depends on the attachment parameter */
4097 if (attachment
== GL_STENCIL_ATTACHMENT
) {
4105 *params
= _mesa_get_format_datatype(format
);
4109 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
4110 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
4111 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
4112 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
4113 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
4114 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
4115 if ((!_mesa_is_desktop_gl(ctx
) ||
4116 !ctx
->Extensions
.ARB_framebuffer_object
)
4117 && !_mesa_is_gles3(ctx
)) {
4118 goto invalid_pname_enum
;
4120 else if (att
->Texture
) {
4121 const struct gl_texture_image
*texImage
=
4122 _mesa_select_tex_image(att
->Texture
, att
->Texture
->Target
,
4125 *params
= get_component_bits(pname
, texImage
->_BaseFormat
,
4126 texImage
->TexFormat
);
4132 else if (att
->Renderbuffer
) {
4133 *params
= get_component_bits(pname
, att
->Renderbuffer
->_BaseFormat
,
4134 att
->Renderbuffer
->Format
);
4137 assert(att
->Type
== GL_NONE
);
4138 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4139 _mesa_enum_to_string(pname
));
4142 case GL_FRAMEBUFFER_ATTACHMENT_LAYERED
:
4143 if (!_mesa_has_geometry_shaders(ctx
)) {
4144 goto invalid_pname_enum
;
4145 } else if (att
->Type
== GL_TEXTURE
) {
4146 *params
= att
->Layered
;
4147 } else if (att
->Type
== GL_NONE
) {
4148 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4149 _mesa_enum_to_string(pname
));
4151 goto invalid_pname_enum
;
4155 goto invalid_pname_enum
;
4161 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname %s)", caller
,
4162 _mesa_enum_to_string(pname
));
4168 _mesa_GetFramebufferAttachmentParameteriv(GLenum target
, GLenum attachment
,
4169 GLenum pname
, GLint
*params
)
4171 GET_CURRENT_CONTEXT(ctx
);
4172 struct gl_framebuffer
*buffer
;
4174 buffer
= get_framebuffer_target(ctx
, target
);
4176 _mesa_error(ctx
, GL_INVALID_ENUM
,
4177 "glGetFramebufferAttachmentParameteriv(invalid target %s)",
4178 _mesa_enum_to_string(target
));
4182 get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
4184 "glGetFramebufferAttachmentParameteriv");
4189 _mesa_GetNamedFramebufferAttachmentParameteriv(GLuint framebuffer
,
4191 GLenum pname
, GLint
*params
)
4193 GET_CURRENT_CONTEXT(ctx
);
4194 struct gl_framebuffer
*buffer
;
4197 buffer
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4198 "glGetNamedFramebufferAttachmentParameteriv");
4204 * Section 9.2 Binding and Managing Framebuffer Objects of the OpenGL
4205 * 4.5 core spec (30.10.2014, PDF page 314):
4206 * "If framebuffer is zero, then the default draw framebuffer is
4209 buffer
= ctx
->WinSysDrawBuffer
;
4212 get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
4214 "glGetNamedFramebufferAttachmentParameteriv");
4219 _mesa_NamedFramebufferParameteri(GLuint framebuffer
, GLenum pname
,
4222 GET_CURRENT_CONTEXT(ctx
);
4223 struct gl_framebuffer
*fb
= NULL
;
4225 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
4226 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4227 "glNamedFramebufferParameteri("
4228 "ARB_framebuffer_no_attachments not implemented)");
4232 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4233 "glNamedFramebufferParameteri");
4236 framebuffer_parameteri(ctx
, fb
, pname
, param
,
4237 "glNamedFramebufferParameteriv");
4243 _mesa_GetNamedFramebufferParameteriv(GLuint framebuffer
, GLenum pname
,
4246 GET_CURRENT_CONTEXT(ctx
);
4247 struct gl_framebuffer
*fb
;
4249 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
4250 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4251 "glNamedFramebufferParameteriv("
4252 "ARB_framebuffer_no_attachments not implemented)");
4257 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4258 "glGetNamedFramebufferParameteriv");
4260 fb
= ctx
->WinSysDrawBuffer
;
4264 get_framebuffer_parameteriv(ctx
, fb
, pname
, param
,
4265 "glGetNamedFramebufferParameteriv");
4271 invalidate_framebuffer_storage(struct gl_context
*ctx
,
4272 struct gl_framebuffer
*fb
,
4273 GLsizei numAttachments
,
4274 const GLenum
*attachments
, GLint x
, GLint y
,
4275 GLsizei width
, GLsizei height
, const char *name
)
4279 /* Section 17.4 Whole Framebuffer Operations of the OpenGL 4.5 Core
4280 * Spec (2.2.2015, PDF page 522) says:
4281 * "An INVALID_VALUE error is generated if numAttachments, width, or
4282 * height is negative."
4284 if (numAttachments
< 0) {
4285 _mesa_error(ctx
, GL_INVALID_VALUE
,
4286 "%s(numAttachments < 0)", name
);
4291 _mesa_error(ctx
, GL_INVALID_VALUE
,
4292 "%s(width < 0)", name
);
4297 _mesa_error(ctx
, GL_INVALID_VALUE
,
4298 "%s(height < 0)", name
);
4302 /* The GL_ARB_invalidate_subdata spec says:
4304 * "If an attachment is specified that does not exist in the
4305 * framebuffer bound to <target>, it is ignored."
4309 * "If <attachments> contains COLOR_ATTACHMENTm and m is greater than
4310 * or equal to the value of MAX_COLOR_ATTACHMENTS, then the error
4311 * INVALID_OPERATION is generated."
4313 * No mention is made of GL_AUXi being out of range. Therefore, we allow
4314 * any enum that can be allowed by the API (OpenGL ES 3.0 has a different
4315 * set of retrictions).
4317 for (i
= 0; i
< numAttachments
; i
++) {
4318 if (_mesa_is_winsys_fbo(fb
)) {
4319 switch (attachments
[i
]) {
4325 /* Accumulation buffers and auxilary buffers were removed in
4326 * OpenGL 3.1, and they never existed in OpenGL ES.
4328 if (ctx
->API
!= API_OPENGL_COMPAT
)
4338 case GL_FRONT_RIGHT
:
4339 if (!_mesa_is_desktop_gl(ctx
))
4346 switch (attachments
[i
]) {
4347 case GL_DEPTH_ATTACHMENT
:
4348 case GL_STENCIL_ATTACHMENT
:
4350 case GL_DEPTH_STENCIL_ATTACHMENT
:
4351 /* GL_DEPTH_STENCIL_ATTACHMENT is a valid attachment point only
4352 * in desktop and ES 3.0 profiles. Note that OES_packed_depth_stencil
4353 * extension does not make this attachment point valid on ES 2.0.
4355 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
))
4358 case GL_COLOR_ATTACHMENT0
:
4359 case GL_COLOR_ATTACHMENT1
:
4360 case GL_COLOR_ATTACHMENT2
:
4361 case GL_COLOR_ATTACHMENT3
:
4362 case GL_COLOR_ATTACHMENT4
:
4363 case GL_COLOR_ATTACHMENT5
:
4364 case GL_COLOR_ATTACHMENT6
:
4365 case GL_COLOR_ATTACHMENT7
:
4366 case GL_COLOR_ATTACHMENT8
:
4367 case GL_COLOR_ATTACHMENT9
:
4368 case GL_COLOR_ATTACHMENT10
:
4369 case GL_COLOR_ATTACHMENT11
:
4370 case GL_COLOR_ATTACHMENT12
:
4371 case GL_COLOR_ATTACHMENT13
:
4372 case GL_COLOR_ATTACHMENT14
:
4373 case GL_COLOR_ATTACHMENT15
: {
4374 unsigned k
= attachments
[i
] - GL_COLOR_ATTACHMENT0
;
4375 if (k
>= ctx
->Const
.MaxColorAttachments
) {
4376 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4377 "%s(attachment >= max. color attachments)", name
);
4388 /* We don't actually do anything for this yet. Just return after
4389 * validating the parameters and generating the required errors.
4394 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", name
,
4395 _mesa_enum_to_string(attachments
[i
]));
4401 _mesa_InvalidateSubFramebuffer_no_error(GLenum target
, GLsizei numAttachments
,
4402 const GLenum
*attachments
, GLint x
,
4403 GLint y
, GLsizei width
, GLsizei height
)
4410 _mesa_InvalidateSubFramebuffer(GLenum target
, GLsizei numAttachments
,
4411 const GLenum
*attachments
, GLint x
, GLint y
,
4412 GLsizei width
, GLsizei height
)
4414 struct gl_framebuffer
*fb
;
4415 GET_CURRENT_CONTEXT(ctx
);
4417 fb
= get_framebuffer_target(ctx
, target
);
4419 _mesa_error(ctx
, GL_INVALID_ENUM
,
4420 "glInvalidateSubFramebuffer(invalid target %s)",
4421 _mesa_enum_to_string(target
));
4425 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4426 x
, y
, width
, height
,
4427 "glInvalidateSubFramebuffer");
4432 _mesa_InvalidateNamedFramebufferSubData(GLuint framebuffer
,
4433 GLsizei numAttachments
,
4434 const GLenum
*attachments
,
4436 GLsizei width
, GLsizei height
)
4438 struct gl_framebuffer
*fb
;
4439 GET_CURRENT_CONTEXT(ctx
);
4441 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
4442 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
4443 * default draw framebuffer is affected."
4446 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4447 "glInvalidateNamedFramebufferSubData");
4452 fb
= ctx
->WinSysDrawBuffer
;
4454 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4455 x
, y
, width
, height
,
4456 "glInvalidateNamedFramebufferSubData");
4461 _mesa_InvalidateFramebuffer_no_error(GLenum target
, GLsizei numAttachments
,
4462 const GLenum
*attachments
)
4469 _mesa_InvalidateFramebuffer(GLenum target
, GLsizei numAttachments
,
4470 const GLenum
*attachments
)
4472 struct gl_framebuffer
*fb
;
4473 GET_CURRENT_CONTEXT(ctx
);
4475 fb
= get_framebuffer_target(ctx
, target
);
4477 _mesa_error(ctx
, GL_INVALID_ENUM
,
4478 "glInvalidateFramebuffer(invalid target %s)",
4479 _mesa_enum_to_string(target
));
4483 /* The GL_ARB_invalidate_subdata spec says:
4487 * void InvalidateFramebuffer(enum target,
4488 * sizei numAttachments,
4489 * const enum *attachments);
4491 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
4492 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
4493 * <MAX_VIEWPORT_DIMS[1]> respectively."
4495 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4497 ctx
->Const
.MaxViewportWidth
,
4498 ctx
->Const
.MaxViewportHeight
,
4499 "glInvalidateFramebuffer");
4504 _mesa_InvalidateNamedFramebufferData(GLuint framebuffer
,
4505 GLsizei numAttachments
,
4506 const GLenum
*attachments
)
4508 struct gl_framebuffer
*fb
;
4509 GET_CURRENT_CONTEXT(ctx
);
4511 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
4512 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
4513 * default draw framebuffer is affected."
4516 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4517 "glInvalidateNamedFramebufferData");
4522 fb
= ctx
->WinSysDrawBuffer
;
4524 /* The GL_ARB_invalidate_subdata spec says:
4528 * void InvalidateFramebuffer(enum target,
4529 * sizei numAttachments,
4530 * const enum *attachments);
4532 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
4533 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
4534 * <MAX_VIEWPORT_DIMS[1]> respectively."
4536 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4538 ctx
->Const
.MaxViewportWidth
,
4539 ctx
->Const
.MaxViewportHeight
,
4540 "glInvalidateNamedFramebufferData");
4545 _mesa_DiscardFramebufferEXT(GLenum target
, GLsizei numAttachments
,
4546 const GLenum
*attachments
)
4548 struct gl_framebuffer
*fb
;
4551 GET_CURRENT_CONTEXT(ctx
);
4553 fb
= get_framebuffer_target(ctx
, target
);
4555 _mesa_error(ctx
, GL_INVALID_ENUM
,
4556 "glDiscardFramebufferEXT(target %s)",
4557 _mesa_enum_to_string(target
));
4561 if (numAttachments
< 0) {
4562 _mesa_error(ctx
, GL_INVALID_VALUE
,
4563 "glDiscardFramebufferEXT(numAttachments < 0)");
4567 for (i
= 0; i
< numAttachments
; i
++) {
4568 switch (attachments
[i
]) {
4572 if (_mesa_is_user_fbo(fb
))
4575 case GL_COLOR_ATTACHMENT0
:
4576 case GL_DEPTH_ATTACHMENT
:
4577 case GL_STENCIL_ATTACHMENT
:
4578 if (_mesa_is_winsys_fbo(fb
))
4586 if (ctx
->Driver
.DiscardFramebuffer
)
4587 ctx
->Driver
.DiscardFramebuffer(ctx
, target
, numAttachments
, attachments
);
4592 _mesa_error(ctx
, GL_INVALID_ENUM
,
4593 "glDiscardFramebufferEXT(attachment %s)",
4594 _mesa_enum_to_string(attachments
[i
]));