2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 1999-2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
28 * GL_EXT/ARB_framebuffer_object extensions
38 #include "debug_output.h"
42 #include "framebuffer.h"
43 #include "glformats.h"
46 #include "multisample.h"
48 #include "renderbuffer.h"
57 * None of the GL_EXT_framebuffer_object functions are compiled into
64 * When glGenRender/FramebuffersEXT() is called we insert pointers to
65 * these placeholder objects into the hash table.
66 * Later, when the object ID is first bound, we replace the placeholder
67 * with the real frame/renderbuffer.
69 static struct gl_framebuffer DummyFramebuffer
;
70 static struct gl_renderbuffer DummyRenderbuffer
;
72 /* We bind this framebuffer when applications pass a NULL
73 * drawable/surface in make current. */
74 static struct gl_framebuffer IncompleteFramebuffer
;
78 delete_dummy_renderbuffer(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
)
84 delete_dummy_framebuffer(struct gl_framebuffer
*fb
)
91 _mesa_init_fbobjects(struct gl_context
*ctx
)
93 simple_mtx_init(&DummyFramebuffer
.Mutex
, mtx_plain
);
94 simple_mtx_init(&DummyRenderbuffer
.Mutex
, mtx_plain
);
95 simple_mtx_init(&IncompleteFramebuffer
.Mutex
, mtx_plain
);
96 DummyFramebuffer
.Delete
= delete_dummy_framebuffer
;
97 DummyRenderbuffer
.Delete
= delete_dummy_renderbuffer
;
98 IncompleteFramebuffer
.Delete
= delete_dummy_framebuffer
;
101 struct gl_framebuffer
*
102 _mesa_get_incomplete_framebuffer(void)
104 return &IncompleteFramebuffer
;
108 * Helper routine for getting a gl_renderbuffer.
110 struct gl_renderbuffer
*
111 _mesa_lookup_renderbuffer(struct gl_context
*ctx
, GLuint id
)
113 struct gl_renderbuffer
*rb
;
118 rb
= (struct gl_renderbuffer
*)
119 _mesa_HashLookup(ctx
->Shared
->RenderBuffers
, id
);
125 * A convenience function for direct state access that throws
126 * GL_INVALID_OPERATION if the renderbuffer doesn't exist.
128 struct gl_renderbuffer
*
129 _mesa_lookup_renderbuffer_err(struct gl_context
*ctx
, GLuint id
,
132 struct gl_renderbuffer
*rb
;
134 rb
= _mesa_lookup_renderbuffer(ctx
, id
);
135 if (!rb
|| rb
== &DummyRenderbuffer
) {
136 _mesa_error(ctx
, GL_INVALID_OPERATION
,
137 "%s(non-existent renderbuffer %u)", func
, id
);
146 * Helper routine for getting a gl_framebuffer.
148 struct gl_framebuffer
*
149 _mesa_lookup_framebuffer(struct gl_context
*ctx
, GLuint id
)
151 struct gl_framebuffer
*fb
;
156 fb
= (struct gl_framebuffer
*)
157 _mesa_HashLookup(ctx
->Shared
->FrameBuffers
, id
);
163 * A convenience function for direct state access that throws
164 * GL_INVALID_OPERATION if the framebuffer doesn't exist.
166 struct gl_framebuffer
*
167 _mesa_lookup_framebuffer_err(struct gl_context
*ctx
, GLuint id
,
170 struct gl_framebuffer
*fb
;
172 fb
= _mesa_lookup_framebuffer(ctx
, id
);
173 if (!fb
|| fb
== &DummyFramebuffer
) {
174 _mesa_error(ctx
, GL_INVALID_OPERATION
,
175 "%s(non-existent framebuffer %u)", func
, id
);
184 * Mark the given framebuffer as invalid. This will force the
185 * test for framebuffer completeness to be done before the framebuffer
189 invalidate_framebuffer(struct gl_framebuffer
*fb
)
191 fb
->_Status
= 0; /* "indeterminate" */
196 * Return the gl_framebuffer object which corresponds to the given
197 * framebuffer target, such as GL_DRAW_FRAMEBUFFER.
198 * Check support for GL_EXT_framebuffer_blit to determine if certain
200 * \return gl_framebuffer pointer or NULL if target is illegal
202 static struct gl_framebuffer
*
203 get_framebuffer_target(struct gl_context
*ctx
, GLenum target
)
205 bool have_fb_blit
= _mesa_is_gles3(ctx
) || _mesa_is_desktop_gl(ctx
);
207 case GL_DRAW_FRAMEBUFFER
:
208 return have_fb_blit
? ctx
->DrawBuffer
: NULL
;
209 case GL_READ_FRAMEBUFFER
:
210 return have_fb_blit
? ctx
->ReadBuffer
: NULL
;
211 case GL_FRAMEBUFFER_EXT
:
212 return ctx
->DrawBuffer
;
220 * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding
221 * gl_renderbuffer_attachment object.
222 * This function is only used for user-created FB objects, not the
223 * default / window-system FB object.
224 * If \p attachment is GL_DEPTH_STENCIL_ATTACHMENT, return a pointer to
225 * the depth buffer attachment point.
226 * Returns if the attachment is a GL_COLOR_ATTACHMENTm_EXT on
227 * is_color_attachment, because several callers would return different errors
228 * if they don't find the attachment.
230 static struct gl_renderbuffer_attachment
*
231 get_attachment(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
232 GLenum attachment
, bool *is_color_attachment
)
236 assert(_mesa_is_user_fbo(fb
));
238 if (is_color_attachment
)
239 *is_color_attachment
= false;
241 switch (attachment
) {
242 case GL_COLOR_ATTACHMENT0_EXT
:
243 case GL_COLOR_ATTACHMENT1_EXT
:
244 case GL_COLOR_ATTACHMENT2_EXT
:
245 case GL_COLOR_ATTACHMENT3_EXT
:
246 case GL_COLOR_ATTACHMENT4_EXT
:
247 case GL_COLOR_ATTACHMENT5_EXT
:
248 case GL_COLOR_ATTACHMENT6_EXT
:
249 case GL_COLOR_ATTACHMENT7_EXT
:
250 case GL_COLOR_ATTACHMENT8_EXT
:
251 case GL_COLOR_ATTACHMENT9_EXT
:
252 case GL_COLOR_ATTACHMENT10_EXT
:
253 case GL_COLOR_ATTACHMENT11_EXT
:
254 case GL_COLOR_ATTACHMENT12_EXT
:
255 case GL_COLOR_ATTACHMENT13_EXT
:
256 case GL_COLOR_ATTACHMENT14_EXT
:
257 case GL_COLOR_ATTACHMENT15_EXT
:
258 if (is_color_attachment
)
259 *is_color_attachment
= true;
260 /* Only OpenGL ES 1.x forbids color attachments other than
261 * GL_COLOR_ATTACHMENT0. For all other APIs the limit set by the
264 i
= attachment
- GL_COLOR_ATTACHMENT0_EXT
;
265 if (i
>= ctx
->Const
.MaxColorAttachments
266 || (i
> 0 && ctx
->API
== API_OPENGLES
)) {
269 return &fb
->Attachment
[BUFFER_COLOR0
+ i
];
270 case GL_DEPTH_STENCIL_ATTACHMENT
:
271 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles3(ctx
))
274 case GL_DEPTH_ATTACHMENT_EXT
:
275 return &fb
->Attachment
[BUFFER_DEPTH
];
276 case GL_STENCIL_ATTACHMENT_EXT
:
277 return &fb
->Attachment
[BUFFER_STENCIL
];
285 * As above, but only used for getting attachments of the default /
286 * window-system framebuffer (not user-created framebuffer objects).
288 static struct gl_renderbuffer_attachment
*
289 get_fb0_attachment(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
292 assert(_mesa_is_winsys_fbo(fb
));
294 if (_mesa_is_gles3(ctx
)) {
295 assert(attachment
== GL_BACK
||
296 attachment
== GL_DEPTH
||
297 attachment
== GL_STENCIL
);
298 switch (attachment
) {
300 /* Since there is no stereo rendering in ES 3.0, only return the
303 if (ctx
->DrawBuffer
->Visual
.doubleBufferMode
)
304 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
305 return &fb
->Attachment
[BUFFER_FRONT_LEFT
];
307 return &fb
->Attachment
[BUFFER_DEPTH
];
309 return &fb
->Attachment
[BUFFER_STENCIL
];
313 switch (attachment
) {
315 /* Front buffers can be allocated on the first use, but
316 * glGetFramebufferAttachmentParameteriv must work even if that
317 * allocation hasn't happened yet. In such case, use the back buffer,
318 * which should be the same.
320 if (fb
->Attachment
[BUFFER_FRONT_LEFT
].Type
== GL_NONE
)
321 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
323 return &fb
->Attachment
[BUFFER_FRONT_LEFT
];
326 if (fb
->Attachment
[BUFFER_FRONT_RIGHT
].Type
== GL_NONE
)
327 return &fb
->Attachment
[BUFFER_BACK_RIGHT
];
329 return &fb
->Attachment
[BUFFER_FRONT_RIGHT
];
331 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
333 return &fb
->Attachment
[BUFFER_BACK_RIGHT
];
335 /* The ARB_ES3_1_compatibility spec says:
337 * "Since this command can only query a single framebuffer
338 * attachment, BACK is equivalent to BACK_LEFT."
340 if (ctx
->Extensions
.ARB_ES3_1_compatibility
)
341 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
344 if (fb
->Visual
.numAuxBuffers
== 1) {
345 return &fb
->Attachment
[BUFFER_AUX0
];
349 /* Page 336 (page 352 of the PDF) of the OpenGL 3.0 spec says:
351 * "If the default framebuffer is bound to target, then attachment must
352 * be one of FRONT LEFT, FRONT RIGHT, BACK LEFT, BACK RIGHT, or AUXi,
353 * identifying a color buffer; DEPTH, identifying the depth buffer; or
354 * STENCIL, identifying the stencil buffer."
356 * Revision #34 of the ARB_framebuffer_object spec has essentially the same
357 * language. However, revision #33 of the ARB_framebuffer_object spec
360 * "If the default framebuffer is bound to <target>, then <attachment>
361 * must be one of FRONT_LEFT, FRONT_RIGHT, BACK_LEFT, BACK_RIGHT, AUXi,
362 * DEPTH_BUFFER, or STENCIL_BUFFER, identifying a color buffer, the
363 * depth buffer, or the stencil buffer, and <pname> may be
364 * FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE or
365 * FRAMEBUFFER_ATTACHMENT_OBJECT_NAME."
367 * The enum values for DEPTH_BUFFER and STENCIL_BUFFER have been removed
368 * from glext.h, so shipping apps should not use those values.
370 * Note that neither EXT_framebuffer_object nor OES_framebuffer_object
371 * support queries of the window system FBO.
374 return &fb
->Attachment
[BUFFER_DEPTH
];
376 return &fb
->Attachment
[BUFFER_STENCIL
];
385 * Remove any texture or renderbuffer attached to the given attachment
386 * point. Update reference counts, etc.
389 remove_attachment(struct gl_context
*ctx
,
390 struct gl_renderbuffer_attachment
*att
)
392 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
394 /* tell driver that we're done rendering to this texture. */
395 if (rb
&& rb
->NeedsFinishRenderTexture
)
396 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
398 if (att
->Type
== GL_TEXTURE
) {
399 assert(att
->Texture
);
400 _mesa_reference_texobj(&att
->Texture
, NULL
); /* unbind */
401 assert(!att
->Texture
);
403 if (att
->Type
== GL_TEXTURE
|| att
->Type
== GL_RENDERBUFFER_EXT
) {
404 assert(!att
->Texture
);
405 _mesa_reference_renderbuffer(&att
->Renderbuffer
, NULL
); /* unbind */
406 assert(!att
->Renderbuffer
);
409 att
->Complete
= GL_TRUE
;
413 * Verify a couple error conditions that will lead to an incomplete FBO and
414 * may cause problems for the driver's RenderTexture path.
417 driver_RenderTexture_is_safe(const struct gl_renderbuffer_attachment
*att
)
419 const struct gl_texture_image
*const texImage
=
420 att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
423 texImage
->Width
== 0 || texImage
->Height
== 0 || texImage
->Depth
== 0)
426 if ((texImage
->TexObject
->Target
== GL_TEXTURE_1D_ARRAY
427 && att
->Zoffset
>= texImage
->Height
)
428 || (texImage
->TexObject
->Target
!= GL_TEXTURE_1D_ARRAY
429 && att
->Zoffset
>= texImage
->Depth
))
436 * Create a renderbuffer which will be set up by the driver to wrap the
437 * texture image slice.
439 * By using a gl_renderbuffer (like user-allocated renderbuffers), drivers get
440 * to share most of their framebuffer rendering code between winsys,
441 * renderbuffer, and texture attachments.
443 * The allocated renderbuffer uses a non-zero Name so that drivers can check
444 * it for determining vertical orientation, but we use ~0 to make it fairly
445 * unambiguous with actual user (non-texture) renderbuffers.
448 _mesa_update_texture_renderbuffer(struct gl_context
*ctx
,
449 struct gl_framebuffer
*fb
,
450 struct gl_renderbuffer_attachment
*att
)
452 struct gl_texture_image
*texImage
;
453 struct gl_renderbuffer
*rb
;
455 texImage
= att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
457 rb
= att
->Renderbuffer
;
459 rb
= ctx
->Driver
.NewRenderbuffer(ctx
, ~0);
461 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glFramebufferTexture()");
464 att
->Renderbuffer
= rb
;
466 /* This can't get called on a texture renderbuffer, so set it to NULL
467 * for clarity compared to user renderbuffers.
469 rb
->AllocStorage
= NULL
;
471 rb
->NeedsFinishRenderTexture
= ctx
->Driver
.FinishRenderTexture
!= NULL
;
477 rb
->_BaseFormat
= texImage
->_BaseFormat
;
478 rb
->Format
= texImage
->TexFormat
;
479 rb
->InternalFormat
= texImage
->InternalFormat
;
480 rb
->Width
= texImage
->Width2
;
481 rb
->Height
= texImage
->Height2
;
482 rb
->Depth
= texImage
->Depth2
;
483 rb
->NumSamples
= texImage
->NumSamples
;
484 rb
->TexImage
= texImage
;
486 if (driver_RenderTexture_is_safe(att
))
487 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
491 * Bind a texture object to an attachment point.
492 * The previous binding, if any, will be removed first.
495 set_texture_attachment(struct gl_context
*ctx
,
496 struct gl_framebuffer
*fb
,
497 struct gl_renderbuffer_attachment
*att
,
498 struct gl_texture_object
*texObj
,
499 GLenum texTarget
, GLuint level
, GLuint layer
,
502 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
504 if (rb
&& rb
->NeedsFinishRenderTexture
)
505 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
507 if (att
->Texture
== texObj
) {
508 /* re-attaching same texture */
509 assert(att
->Type
== GL_TEXTURE
);
513 remove_attachment(ctx
, att
);
514 att
->Type
= GL_TEXTURE
;
515 assert(!att
->Texture
);
516 _mesa_reference_texobj(&att
->Texture
, texObj
);
518 invalidate_framebuffer(fb
);
520 /* always update these fields */
521 att
->TextureLevel
= level
;
522 att
->CubeMapFace
= _mesa_tex_target_to_face(texTarget
);
523 att
->Zoffset
= layer
;
524 att
->Layered
= layered
;
525 att
->Complete
= GL_FALSE
;
527 _mesa_update_texture_renderbuffer(ctx
, fb
, att
);
532 * Bind a renderbuffer to an attachment point.
533 * The previous binding, if any, will be removed first.
536 set_renderbuffer_attachment(struct gl_context
*ctx
,
537 struct gl_renderbuffer_attachment
*att
,
538 struct gl_renderbuffer
*rb
)
540 /* XXX check if re-doing same attachment, exit early */
541 remove_attachment(ctx
, att
);
542 att
->Type
= GL_RENDERBUFFER_EXT
;
543 att
->Texture
= NULL
; /* just to be safe */
544 att
->Layered
= GL_FALSE
;
545 att
->Complete
= GL_FALSE
;
546 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
551 * Fallback for ctx->Driver.FramebufferRenderbuffer()
552 * Attach a renderbuffer object to a framebuffer object.
555 _mesa_FramebufferRenderbuffer_sw(struct gl_context
*ctx
,
556 struct gl_framebuffer
*fb
,
558 struct gl_renderbuffer
*rb
)
560 struct gl_renderbuffer_attachment
*att
;
562 simple_mtx_lock(&fb
->Mutex
);
564 att
= get_attachment(ctx
, fb
, attachment
, NULL
);
567 set_renderbuffer_attachment(ctx
, att
, rb
);
568 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
569 /* do stencil attachment here (depth already done above) */
570 att
= get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
, NULL
);
572 set_renderbuffer_attachment(ctx
, att
, rb
);
574 rb
->AttachedAnytime
= GL_TRUE
;
577 remove_attachment(ctx
, att
);
578 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
579 /* detach stencil (depth was detached above) */
580 att
= get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
, NULL
);
582 remove_attachment(ctx
, att
);
586 invalidate_framebuffer(fb
);
588 simple_mtx_unlock(&fb
->Mutex
);
593 * Fallback for ctx->Driver.ValidateFramebuffer()
594 * Check if the renderbuffer's formats are supported by the software
596 * Drivers should probably override this.
599 _mesa_validate_framebuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
602 for (buf
= 0; buf
< BUFFER_COUNT
; buf
++) {
603 const struct gl_renderbuffer
*rb
= fb
->Attachment
[buf
].Renderbuffer
;
605 switch (rb
->_BaseFormat
) {
607 case GL_LUMINANCE_ALPHA
:
612 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
616 switch (rb
->Format
) {
617 /* XXX This list is likely incomplete. */
618 case MESA_FORMAT_R9G9B9E5_FLOAT
:
619 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
622 /* render buffer format is supported by software rendering */
631 * Return true if the framebuffer has a combined depth/stencil
632 * renderbuffer attached.
635 _mesa_has_depthstencil_combined(const struct gl_framebuffer
*fb
)
637 const struct gl_renderbuffer_attachment
*depth
=
638 &fb
->Attachment
[BUFFER_DEPTH
];
639 const struct gl_renderbuffer_attachment
*stencil
=
640 &fb
->Attachment
[BUFFER_STENCIL
];
642 if (depth
->Type
== stencil
->Type
) {
643 if (depth
->Type
== GL_RENDERBUFFER_EXT
&&
644 depth
->Renderbuffer
== stencil
->Renderbuffer
)
647 if (depth
->Type
== GL_TEXTURE
&&
648 depth
->Texture
== stencil
->Texture
)
660 att_incomplete(const char *msg
)
662 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
663 _mesa_debug(NULL
, "attachment incomplete: %s\n", msg
);
672 fbo_incomplete(struct gl_context
*ctx
, const char *msg
, int index
)
674 static GLuint msg_id
;
676 _mesa_gl_debug(ctx
, &msg_id
,
677 MESA_DEBUG_SOURCE_API
,
678 MESA_DEBUG_TYPE_OTHER
,
679 MESA_DEBUG_SEVERITY_MEDIUM
,
680 "FBO incomplete: %s [%d]\n", msg
, index
);
682 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
683 _mesa_debug(NULL
, "FBO Incomplete: %s [%d]\n", msg
, index
);
689 * Is the given base format a legal format for a color renderbuffer?
692 _mesa_is_legal_color_format(const struct gl_context
*ctx
, GLenum baseFormat
)
694 switch (baseFormat
) {
699 case GL_LUMINANCE_ALPHA
:
702 return ctx
->API
== API_OPENGL_COMPAT
&&
703 ctx
->Extensions
.ARB_framebuffer_object
;
706 return ctx
->Extensions
.ARB_texture_rg
;
714 * Is the given base format a legal format for a color renderbuffer?
717 is_format_color_renderable(const struct gl_context
*ctx
, mesa_format format
,
718 GLenum internalFormat
)
720 const GLenum baseFormat
=
721 _mesa_get_format_base_format(format
);
724 valid
= _mesa_is_legal_color_format(ctx
, baseFormat
);
725 if (!valid
|| _mesa_is_desktop_gl(ctx
)) {
729 /* Reject additional cases for GLES */
730 switch (internalFormat
) {
751 if (internalFormat
!= GL_RGB10_A2
&&
752 (format
== MESA_FORMAT_B10G10R10A2_UNORM
||
753 format
== MESA_FORMAT_B10G10R10X2_UNORM
||
754 format
== MESA_FORMAT_R10G10B10A2_UNORM
||
755 format
== MESA_FORMAT_R10G10B10X2_UNORM
)) {
764 * Is the given base format a legal format for a depth/stencil renderbuffer?
767 is_legal_depth_format(const struct gl_context
*ctx
, GLenum baseFormat
)
769 switch (baseFormat
) {
770 case GL_DEPTH_COMPONENT
:
771 case GL_DEPTH_STENCIL_EXT
:
780 * Test if an attachment point is complete and update its Complete field.
781 * \param format if GL_COLOR, this is a color attachment point,
782 * if GL_DEPTH, this is a depth component attachment point,
783 * if GL_STENCIL, this is a stencil component attachment point.
786 test_attachment_completeness(const struct gl_context
*ctx
, GLenum format
,
787 struct gl_renderbuffer_attachment
*att
)
789 assert(format
== GL_COLOR
|| format
== GL_DEPTH
|| format
== GL_STENCIL
);
791 /* assume complete */
792 att
->Complete
= GL_TRUE
;
794 /* Look for reasons why the attachment might be incomplete */
795 if (att
->Type
== GL_TEXTURE
) {
796 const struct gl_texture_object
*texObj
= att
->Texture
;
797 const struct gl_texture_image
*texImage
;
801 att_incomplete("no texobj");
802 att
->Complete
= GL_FALSE
;
806 texImage
= texObj
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
808 att_incomplete("no teximage");
809 att
->Complete
= GL_FALSE
;
812 if (texImage
->Width
< 1 || texImage
->Height
< 1) {
813 att_incomplete("teximage width/height=0");
814 att
->Complete
= GL_FALSE
;
818 switch (texObj
->Target
) {
820 if (att
->Zoffset
>= texImage
->Depth
) {
821 att_incomplete("bad z offset");
822 att
->Complete
= GL_FALSE
;
826 case GL_TEXTURE_1D_ARRAY
:
827 if (att
->Zoffset
>= texImage
->Height
) {
828 att_incomplete("bad 1D-array layer");
829 att
->Complete
= GL_FALSE
;
833 case GL_TEXTURE_2D_ARRAY
:
834 if (att
->Zoffset
>= texImage
->Depth
) {
835 att_incomplete("bad 2D-array layer");
836 att
->Complete
= GL_FALSE
;
840 case GL_TEXTURE_CUBE_MAP_ARRAY
:
841 if (att
->Zoffset
>= texImage
->Depth
) {
842 att_incomplete("bad cube-array layer");
843 att
->Complete
= GL_FALSE
;
849 baseFormat
= texImage
->_BaseFormat
;
851 if (format
== GL_COLOR
) {
852 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
853 att_incomplete("bad format");
854 att
->Complete
= GL_FALSE
;
857 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
858 att_incomplete("compressed internalformat");
859 att
->Complete
= GL_FALSE
;
863 /* OES_texture_float allows creation and use of floating point
864 * textures with GL_FLOAT, GL_HALF_FLOAT but it does not allow
865 * these textures to be used as a render target, this is done via
866 * GL_EXT_color_buffer(_half)_float with set of new sized types.
868 if (_mesa_is_gles(ctx
) && (texObj
->_IsFloat
|| texObj
->_IsHalfFloat
)) {
869 att_incomplete("bad internal format");
870 att
->Complete
= GL_FALSE
;
874 else if (format
== GL_DEPTH
) {
875 if (baseFormat
== GL_DEPTH_COMPONENT
) {
878 else if (ctx
->Extensions
.ARB_depth_texture
&&
879 baseFormat
== GL_DEPTH_STENCIL
) {
883 att
->Complete
= GL_FALSE
;
884 att_incomplete("bad depth format");
889 assert(format
== GL_STENCIL
);
890 if (ctx
->Extensions
.ARB_depth_texture
&&
891 baseFormat
== GL_DEPTH_STENCIL
) {
893 } else if (ctx
->Extensions
.ARB_texture_stencil8
&&
894 baseFormat
== GL_STENCIL_INDEX
) {
897 /* no such thing as stencil-only textures */
898 att_incomplete("illegal stencil texture");
899 att
->Complete
= GL_FALSE
;
904 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
905 const GLenum baseFormat
= att
->Renderbuffer
->_BaseFormat
;
907 assert(att
->Renderbuffer
);
908 if (!att
->Renderbuffer
->InternalFormat
||
909 att
->Renderbuffer
->Width
< 1 ||
910 att
->Renderbuffer
->Height
< 1) {
911 att_incomplete("0x0 renderbuffer");
912 att
->Complete
= GL_FALSE
;
915 if (format
== GL_COLOR
) {
916 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
917 att_incomplete("bad renderbuffer color format");
918 att
->Complete
= GL_FALSE
;
922 else if (format
== GL_DEPTH
) {
923 if (baseFormat
== GL_DEPTH_COMPONENT
) {
926 else if (baseFormat
== GL_DEPTH_STENCIL
) {
930 att_incomplete("bad renderbuffer depth format");
931 att
->Complete
= GL_FALSE
;
936 assert(format
== GL_STENCIL
);
937 if (baseFormat
== GL_STENCIL_INDEX
||
938 baseFormat
== GL_DEPTH_STENCIL
) {
942 att
->Complete
= GL_FALSE
;
943 att_incomplete("bad renderbuffer stencil format");
949 assert(att
->Type
== GL_NONE
);
957 * Test if the given framebuffer object is complete and update its
958 * Status field with the results.
959 * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
960 * driver to make hardware-specific validation/completeness checks.
961 * Also update the framebuffer's Width and Height fields if the
962 * framebuffer is complete.
965 _mesa_test_framebuffer_completeness(struct gl_context
*ctx
,
966 struct gl_framebuffer
*fb
)
969 GLenum intFormat
= GL_NONE
; /* color buffers' internal format */
970 GLuint minWidth
= ~0, minHeight
= ~0, maxWidth
= 0, maxHeight
= 0;
971 GLint numSamples
= -1;
972 GLint fixedSampleLocations
= -1;
975 /* Covers max_layer_count, is_layered, and layer_tex_target */
976 bool layer_info_valid
= false;
977 GLuint max_layer_count
= 0, att_layer_count
;
978 bool is_layered
= false;
979 GLenum layer_tex_target
= 0;
980 bool has_depth_attachment
= false;
981 bool has_stencil_attachment
= false;
983 assert(_mesa_is_user_fbo(fb
));
985 /* we're changing framebuffer fields here */
986 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
991 fb
->_AllColorBuffersFixedPoint
= GL_TRUE
;
992 fb
->_HasSNormOrFloatColorBuffer
= GL_FALSE
;
993 fb
->_HasAttachments
= true;
994 fb
->_IntegerBuffers
= 0;
996 /* Start at -2 to more easily loop over all attachment points.
1001 for (i
= -2; i
< (GLint
) ctx
->Const
.MaxColorAttachments
; i
++) {
1002 struct gl_renderbuffer_attachment
*att
;
1004 mesa_format attFormat
;
1005 GLenum att_tex_target
= GL_NONE
;
1008 * XXX for ARB_fbo, only check color buffers that are named by
1009 * GL_READ_BUFFER and GL_DRAW_BUFFERi.
1012 /* check for attachment completeness
1015 att
= &fb
->Attachment
[BUFFER_DEPTH
];
1016 test_attachment_completeness(ctx
, GL_DEPTH
, att
);
1017 if (!att
->Complete
) {
1018 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1019 fbo_incomplete(ctx
, "depth attachment incomplete", -1);
1021 } else if (att
->Type
!= GL_NONE
) {
1022 has_depth_attachment
= true;
1026 att
= &fb
->Attachment
[BUFFER_STENCIL
];
1027 test_attachment_completeness(ctx
, GL_STENCIL
, att
);
1028 if (!att
->Complete
) {
1029 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1030 fbo_incomplete(ctx
, "stencil attachment incomplete", -1);
1032 } else if (att
->Type
!= GL_NONE
) {
1033 has_stencil_attachment
= true;
1037 att
= &fb
->Attachment
[BUFFER_COLOR0
+ i
];
1038 test_attachment_completeness(ctx
, GL_COLOR
, att
);
1039 if (!att
->Complete
) {
1040 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1041 fbo_incomplete(ctx
, "color attachment incomplete", i
);
1046 /* get width, height, format of the renderbuffer/texture
1048 if (att
->Type
== GL_TEXTURE
) {
1049 const struct gl_texture_image
*texImg
= att
->Renderbuffer
->TexImage
;
1050 att_tex_target
= att
->Texture
->Target
;
1051 minWidth
= MIN2(minWidth
, texImg
->Width
);
1052 maxWidth
= MAX2(maxWidth
, texImg
->Width
);
1053 minHeight
= MIN2(minHeight
, texImg
->Height
);
1054 maxHeight
= MAX2(maxHeight
, texImg
->Height
);
1055 f
= texImg
->_BaseFormat
;
1056 attFormat
= texImg
->TexFormat
;
1059 if (!is_format_color_renderable(ctx
, attFormat
,
1060 texImg
->InternalFormat
) &&
1061 !is_legal_depth_format(ctx
, f
) &&
1062 f
!= GL_STENCIL_INDEX
) {
1063 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT
;
1064 fbo_incomplete(ctx
, "texture attachment incomplete", -1);
1069 numSamples
= texImg
->NumSamples
;
1070 else if (numSamples
!= texImg
->NumSamples
) {
1071 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1072 fbo_incomplete(ctx
, "inconsistent sample count", -1);
1076 if (fixedSampleLocations
< 0)
1077 fixedSampleLocations
= texImg
->FixedSampleLocations
;
1078 else if (fixedSampleLocations
!= texImg
->FixedSampleLocations
) {
1079 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1080 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1084 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
1085 minWidth
= MIN2(minWidth
, att
->Renderbuffer
->Width
);
1086 maxWidth
= MAX2(minWidth
, att
->Renderbuffer
->Width
);
1087 minHeight
= MIN2(minHeight
, att
->Renderbuffer
->Height
);
1088 maxHeight
= MAX2(minHeight
, att
->Renderbuffer
->Height
);
1089 f
= att
->Renderbuffer
->InternalFormat
;
1090 attFormat
= att
->Renderbuffer
->Format
;
1094 numSamples
= att
->Renderbuffer
->NumSamples
;
1095 else if (numSamples
!= att
->Renderbuffer
->NumSamples
) {
1096 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1097 fbo_incomplete(ctx
, "inconsistent sample count", -1);
1101 /* RENDERBUFFER has fixedSampleLocations implicitly true */
1102 if (fixedSampleLocations
< 0)
1103 fixedSampleLocations
= GL_TRUE
;
1104 else if (fixedSampleLocations
!= GL_TRUE
) {
1105 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1106 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1111 assert(att
->Type
== GL_NONE
);
1115 /* Update flags describing color buffer datatypes */
1117 GLenum type
= _mesa_get_format_datatype(attFormat
);
1119 /* check if integer color */
1120 if (_mesa_is_format_integer_color(attFormat
))
1121 fb
->_IntegerBuffers
|= (1 << i
);
1123 fb
->_AllColorBuffersFixedPoint
=
1124 fb
->_AllColorBuffersFixedPoint
&&
1125 (type
== GL_UNSIGNED_NORMALIZED
|| type
== GL_SIGNED_NORMALIZED
);
1127 fb
->_HasSNormOrFloatColorBuffer
=
1128 fb
->_HasSNormOrFloatColorBuffer
||
1129 type
== GL_SIGNED_NORMALIZED
|| type
== GL_FLOAT
;
1132 /* Error-check width, height, format */
1133 if (numImages
== 1) {
1140 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
1141 /* check that width, height, format are same */
1142 if (minWidth
!= maxWidth
|| minHeight
!= maxHeight
) {
1143 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
;
1144 fbo_incomplete(ctx
, "width or height mismatch", -1);
1147 /* check that all color buffers are the same format */
1148 if (intFormat
!= GL_NONE
&& f
!= intFormat
) {
1149 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
1150 fbo_incomplete(ctx
, "format mismatch", -1);
1156 /* Check that the format is valid. (MESA_FORMAT_NONE means unsupported)
1158 if (att
->Type
== GL_RENDERBUFFER
&&
1159 att
->Renderbuffer
->Format
== MESA_FORMAT_NONE
) {
1160 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1161 fbo_incomplete(ctx
, "unsupported renderbuffer format", i
);
1165 /* Check that layered rendering is consistent. */
1167 if (att_tex_target
== GL_TEXTURE_CUBE_MAP
)
1168 att_layer_count
= 6;
1169 else if (att_tex_target
== GL_TEXTURE_1D_ARRAY
)
1170 att_layer_count
= att
->Renderbuffer
->Height
;
1172 att_layer_count
= att
->Renderbuffer
->Depth
;
1174 att_layer_count
= 0;
1176 if (!layer_info_valid
) {
1177 is_layered
= att
->Layered
;
1178 max_layer_count
= att_layer_count
;
1179 layer_tex_target
= att_tex_target
;
1180 layer_info_valid
= true;
1181 } else if (max_layer_count
> 0 && layer_tex_target
!= att_tex_target
) {
1182 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1183 fbo_incomplete(ctx
, "layered framebuffer has mismatched targets", i
);
1185 } else if (is_layered
!= att
->Layered
) {
1186 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1188 "framebuffer attachment layer mode is inconsistent",
1191 } else if (att_layer_count
> max_layer_count
) {
1192 max_layer_count
= att_layer_count
;
1196 * The extension GL_ARB_framebuffer_no_attachments places additional
1197 * requirement on each attachment. Those additional requirements are
1198 * tighter that those of previous versions of GL. In interest of better
1199 * compatibility, we will not enforce these restrictions. For the record
1200 * those additional restrictions are quoted below:
1202 * "The width and height of image are greater than zero and less than or
1203 * equal to the values of the implementation-dependent limits
1204 * MAX_FRAMEBUFFER_WIDTH and MAX_FRAMEBUFFER_HEIGHT, respectively."
1206 * "If <image> is a three-dimensional texture or a one- or two-dimensional
1207 * array texture and the attachment is layered, the depth or layer count
1208 * of the texture is less than or equal to the implementation-dependent
1209 * limit MAX_FRAMEBUFFER_LAYERS."
1211 * "If image has multiple samples, its sample count is less than or equal
1212 * to the value of the implementation-dependent limit
1213 * MAX_FRAMEBUFFER_SAMPLES."
1215 * The same requirements are also in place for GL 4.5,
1216 * Section 9.4.1 "Framebuffer Attachment Completeness", pg 310-311
1220 fb
->MaxNumLayers
= max_layer_count
;
1222 if (numImages
== 0) {
1223 fb
->_HasAttachments
= false;
1225 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
1226 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1227 fbo_incomplete(ctx
, "no attachments", -1);
1231 if (fb
->DefaultGeometry
.Width
== 0 || fb
->DefaultGeometry
.Height
== 0) {
1232 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1233 fbo_incomplete(ctx
, "no attachments and default width or height is 0", -1);
1238 if (_mesa_is_desktop_gl(ctx
) && !ctx
->Extensions
.ARB_ES2_compatibility
) {
1239 /* Check that all DrawBuffers are present */
1240 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
1241 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
1242 const struct gl_renderbuffer_attachment
*att
1243 = get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
], NULL
);
1245 if (att
->Type
== GL_NONE
) {
1246 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
1247 fbo_incomplete(ctx
, "missing drawbuffer", j
);
1253 /* Check that the ReadBuffer is present */
1254 if (fb
->ColorReadBuffer
!= GL_NONE
) {
1255 const struct gl_renderbuffer_attachment
*att
1256 = get_attachment(ctx
, fb
, fb
->ColorReadBuffer
, NULL
);
1258 if (att
->Type
== GL_NONE
) {
1259 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
1260 fbo_incomplete(ctx
, "missing readbuffer", -1);
1266 /* The OpenGL ES3 spec, in chapter 9.4. FRAMEBUFFER COMPLETENESS, says:
1268 * "Depth and stencil attachments, if present, are the same image."
1270 * This restriction is not present in the OpenGL ES2 spec.
1272 if (_mesa_is_gles3(ctx
) &&
1273 has_stencil_attachment
&& has_depth_attachment
&&
1274 !_mesa_has_depthstencil_combined(fb
)) {
1275 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1276 fbo_incomplete(ctx
, "Depth and stencil attachments must be the same image", -1);
1280 /* Provisionally set status = COMPLETE ... */
1281 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
1283 /* ... but the driver may say the FB is incomplete.
1284 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
1287 if (ctx
->Driver
.ValidateFramebuffer
) {
1288 ctx
->Driver
.ValidateFramebuffer(ctx
, fb
);
1289 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1290 fbo_incomplete(ctx
, "driver marked FBO as incomplete", -1);
1296 * Note that if ARB_framebuffer_object is supported and the attached
1297 * renderbuffers/textures are different sizes, the framebuffer
1298 * width/height will be set to the smallest width/height.
1300 if (numImages
!= 0) {
1301 fb
->Width
= minWidth
;
1302 fb
->Height
= minHeight
;
1305 /* finally, update the visual info for the framebuffer */
1306 _mesa_update_framebuffer_visual(ctx
, fb
);
1310 GLboolean GLAPIENTRY
1311 _mesa_IsRenderbuffer(GLuint renderbuffer
)
1313 struct gl_renderbuffer
*rb
;
1315 GET_CURRENT_CONTEXT(ctx
);
1317 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1319 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1320 return rb
!= NULL
&& rb
!= &DummyRenderbuffer
;
1324 static struct gl_renderbuffer
*
1325 allocate_renderbuffer_locked(struct gl_context
*ctx
, GLuint renderbuffer
,
1328 struct gl_renderbuffer
*newRb
;
1330 /* create new renderbuffer object */
1331 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
1333 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
1336 assert(newRb
->AllocStorage
);
1337 _mesa_HashInsertLocked(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
1344 bind_renderbuffer(GLenum target
, GLuint renderbuffer
, bool allow_user_names
)
1346 struct gl_renderbuffer
*newRb
;
1347 GET_CURRENT_CONTEXT(ctx
);
1349 if (target
!= GL_RENDERBUFFER_EXT
) {
1350 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindRenderbufferEXT(target)");
1354 /* No need to flush here since the render buffer binding has no
1355 * effect on rendering state.
1359 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1360 if (newRb
== &DummyRenderbuffer
) {
1361 /* ID was reserved, but no real renderbuffer object made yet */
1364 else if (!newRb
&& !allow_user_names
) {
1365 /* All RB IDs must be Gen'd */
1366 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindRenderbuffer(buffer)");
1371 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
1372 newRb
= allocate_renderbuffer_locked(ctx
, renderbuffer
,
1373 "glBindRenderbufferEXT");
1374 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
1381 assert(newRb
!= &DummyRenderbuffer
);
1383 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
1387 _mesa_BindRenderbuffer(GLenum target
, GLuint renderbuffer
)
1389 GET_CURRENT_CONTEXT(ctx
);
1391 /* OpenGL ES glBindRenderbuffer and glBindRenderbufferOES use this same
1392 * entry point, but they allow the use of user-generated names.
1394 bind_renderbuffer(target
, renderbuffer
, _mesa_is_gles(ctx
));
1398 _mesa_BindRenderbufferEXT(GLenum target
, GLuint renderbuffer
)
1400 /* This function should not be in the dispatch table for core profile /
1401 * OpenGL 3.1, so execution should never get here in those cases -- no
1402 * need for an explicit test.
1404 bind_renderbuffer(target
, renderbuffer
, true);
1408 * ARB_framebuffer_no_attachment and ARB_sample_locations - Application passes
1409 * requested param's here. NOTE: NumSamples requested need not be _NumSamples
1410 * which is what the hw supports.
1413 framebuffer_parameteri(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1414 GLenum pname
, GLint param
, const char *func
)
1416 bool cannot_be_winsys_fbo
= false;
1419 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1420 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1421 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1422 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1423 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1424 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
)
1425 goto invalid_pname_enum
;
1426 cannot_be_winsys_fbo
= true;
1428 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1429 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1430 if (!ctx
->Extensions
.ARB_sample_locations
)
1431 goto invalid_pname_enum
;
1433 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1434 if (!ctx
->Extensions
.MESA_framebuffer_flip_y
)
1435 goto invalid_pname_enum
;
1436 cannot_be_winsys_fbo
= true;
1438 goto invalid_pname_enum
;
1441 if (cannot_be_winsys_fbo
&& _mesa_is_winsys_fbo(fb
)) {
1442 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1443 "%s(invalid pname=0x%x for default framebuffer)", func
, pname
);
1448 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1449 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferWidth
)
1450 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1452 fb
->DefaultGeometry
.Width
= param
;
1454 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1455 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferHeight
)
1456 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1458 fb
->DefaultGeometry
.Height
= param
;
1460 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1462 * According to the OpenGL ES 3.1 specification section 9.2.1, the
1463 * GL_FRAMEBUFFER_DEFAULT_LAYERS parameter name is not supported.
1465 if (_mesa_is_gles31(ctx
) && !ctx
->Extensions
.OES_geometry_shader
) {
1466 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1469 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferLayers
)
1470 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1472 fb
->DefaultGeometry
.Layers
= param
;
1474 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1475 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferSamples
)
1476 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1478 fb
->DefaultGeometry
.NumSamples
= param
;
1480 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1481 fb
->DefaultGeometry
.FixedSampleLocations
= param
;
1483 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1484 fb
->ProgrammableSampleLocations
= !!param
;
1486 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1487 fb
->SampleLocationPixelGrid
= !!param
;
1489 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1495 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1496 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1497 if (fb
== ctx
->DrawBuffer
)
1498 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleLocations
;
1501 invalidate_framebuffer(fb
);
1502 ctx
->NewState
|= _NEW_BUFFERS
;
1509 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1513 _mesa_FramebufferParameteri(GLenum target
, GLenum pname
, GLint param
)
1515 GET_CURRENT_CONTEXT(ctx
);
1516 struct gl_framebuffer
*fb
;
1518 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
1519 !ctx
->Extensions
.ARB_sample_locations
) {
1520 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1521 "glFramebufferParameteriv not supported "
1522 "(neither ARB_framebuffer_no_attachments nor ARB_sample_locations"
1527 fb
= get_framebuffer_target(ctx
, target
);
1529 _mesa_error(ctx
, GL_INVALID_ENUM
,
1530 "glFramebufferParameteri(target=0x%x)", target
);
1534 framebuffer_parameteri(ctx
, fb
, pname
, param
, "glFramebufferParameteri");
1538 validate_get_framebuffer_parameteriv_pname(struct gl_context
*ctx
,
1539 struct gl_framebuffer
*fb
,
1540 GLuint pname
, const char *func
)
1542 bool cannot_be_winsys_fbo
= true;
1545 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1547 * According to the OpenGL ES 3.1 specification section 9.2.3, the
1548 * GL_FRAMEBUFFER_LAYERS parameter name is not supported.
1550 if (_mesa_is_gles31(ctx
) && !ctx
->Extensions
.OES_geometry_shader
) {
1551 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1555 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1556 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1557 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1558 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1560 case GL_DOUBLEBUFFER
:
1561 case GL_IMPLEMENTATION_COLOR_READ_FORMAT
:
1562 case GL_IMPLEMENTATION_COLOR_READ_TYPE
:
1564 case GL_SAMPLE_BUFFERS
:
1566 /* From OpenGL 4.5 spec, section 9.2.3 "Framebuffer Object Queries:
1568 * "An INVALID_OPERATION error is generated by GetFramebufferParameteriv
1569 * if the default framebuffer is bound to target and pname is not one
1570 * of the accepted values from table 23.73, other than
1573 * For OpenGL ES, using default framebuffer raises INVALID_OPERATION
1576 cannot_be_winsys_fbo
= !_mesa_is_desktop_gl(ctx
);
1578 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1579 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1580 if (!ctx
->Extensions
.ARB_sample_locations
)
1581 goto invalid_pname_enum
;
1582 cannot_be_winsys_fbo
= false;
1584 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1585 if (!ctx
->Extensions
.MESA_framebuffer_flip_y
) {
1586 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1591 goto invalid_pname_enum
;
1594 if (cannot_be_winsys_fbo
&& _mesa_is_winsys_fbo(fb
)) {
1595 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1596 "%s(invalid pname=0x%x for default framebuffer)", func
, pname
);
1603 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1608 get_framebuffer_parameteriv(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1609 GLenum pname
, GLint
*params
, const char *func
)
1611 if (!validate_get_framebuffer_parameteriv_pname(ctx
, fb
, pname
, func
))
1615 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1616 *params
= fb
->DefaultGeometry
.Width
;
1618 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1619 *params
= fb
->DefaultGeometry
.Height
;
1621 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1622 *params
= fb
->DefaultGeometry
.Layers
;
1624 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1625 *params
= fb
->DefaultGeometry
.NumSamples
;
1627 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1628 *params
= fb
->DefaultGeometry
.FixedSampleLocations
;
1630 case GL_DOUBLEBUFFER
:
1631 *params
= fb
->Visual
.doubleBufferMode
;
1633 case GL_IMPLEMENTATION_COLOR_READ_FORMAT
:
1634 *params
= _mesa_get_color_read_format(ctx
, fb
, func
);
1636 case GL_IMPLEMENTATION_COLOR_READ_TYPE
:
1637 *params
= _mesa_get_color_read_type(ctx
, fb
, func
);
1640 *params
= _mesa_geometric_samples(fb
);
1642 case GL_SAMPLE_BUFFERS
:
1643 *params
= _mesa_geometric_samples(fb
) > 0;
1646 *params
= fb
->Visual
.stereoMode
;
1648 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1649 *params
= fb
->ProgrammableSampleLocations
;
1651 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1652 *params
= fb
->SampleLocationPixelGrid
;
1654 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1655 *params
= fb
->FlipY
;
1661 _mesa_GetFramebufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
1663 GET_CURRENT_CONTEXT(ctx
);
1664 struct gl_framebuffer
*fb
;
1666 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
1667 !ctx
->Extensions
.ARB_sample_locations
) {
1668 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1669 "glGetFramebufferParameteriv not supported "
1670 "(neither ARB_framebuffer_no_attachments nor ARB_sample_locations"
1675 fb
= get_framebuffer_target(ctx
, target
);
1677 _mesa_error(ctx
, GL_INVALID_ENUM
,
1678 "glGetFramebufferParameteriv(target=0x%x)", target
);
1682 get_framebuffer_parameteriv(ctx
, fb
, pname
, params
,
1683 "glGetFramebufferParameteriv");
1688 * Remove the specified renderbuffer or texture from any attachment point in
1692 * \c true if the renderbuffer was detached from an attachment point. \c
1696 _mesa_detach_renderbuffer(struct gl_context
*ctx
,
1697 struct gl_framebuffer
*fb
,
1701 bool progress
= false;
1703 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1704 if (fb
->Attachment
[i
].Texture
== att
1705 || fb
->Attachment
[i
].Renderbuffer
== att
) {
1706 remove_attachment(ctx
, &fb
->Attachment
[i
]);
1711 /* Section 4.4.4 (Framebuffer Completeness), subsection "Whole Framebuffer
1712 * Completeness," of the OpenGL 3.1 spec says:
1714 * "Performing any of the following actions may change whether the
1715 * framebuffer is considered complete or incomplete:
1719 * - Deleting, with DeleteTextures or DeleteRenderbuffers, an object
1720 * containing an image that is attached to a framebuffer object
1721 * that is bound to the framebuffer."
1724 invalidate_framebuffer(fb
);
1731 _mesa_DeleteRenderbuffers(GLsizei n
, const GLuint
*renderbuffers
)
1734 GET_CURRENT_CONTEXT(ctx
);
1737 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteRenderbuffers(n < 0)");
1741 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1743 for (i
= 0; i
< n
; i
++) {
1744 if (renderbuffers
[i
] > 0) {
1745 struct gl_renderbuffer
*rb
;
1746 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
1748 /* check if deleting currently bound renderbuffer object */
1749 if (rb
== ctx
->CurrentRenderbuffer
) {
1751 assert(rb
->RefCount
>= 2);
1752 _mesa_BindRenderbuffer(GL_RENDERBUFFER_EXT
, 0);
1755 /* Section 4.4.2 (Attaching Images to Framebuffer Objects),
1756 * subsection "Attaching Renderbuffer Images to a Framebuffer,"
1757 * of the OpenGL 3.1 spec says:
1759 * "If a renderbuffer object is deleted while its image is
1760 * attached to one or more attachment points in the currently
1761 * bound framebuffer, then it is as if FramebufferRenderbuffer
1762 * had been called, with a renderbuffer of 0, for each
1763 * attachment point to which this image was attached in the
1764 * currently bound framebuffer. In other words, this
1765 * renderbuffer image is first detached from all attachment
1766 * points in the currently bound framebuffer. Note that the
1767 * renderbuffer image is specifically not detached from any
1768 * non-bound framebuffers. Detaching the image from any
1769 * non-bound framebuffers is the responsibility of the
1772 if (_mesa_is_user_fbo(ctx
->DrawBuffer
)) {
1773 _mesa_detach_renderbuffer(ctx
, ctx
->DrawBuffer
, rb
);
1775 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)
1776 && ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
1777 _mesa_detach_renderbuffer(ctx
, ctx
->ReadBuffer
, rb
);
1780 /* Remove from hash table immediately, to free the ID.
1781 * But the object will not be freed until it's no longer
1782 * referenced anywhere else.
1784 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
1786 if (rb
!= &DummyRenderbuffer
) {
1787 /* no longer referenced by hash table */
1788 _mesa_reference_renderbuffer(&rb
, NULL
);
1796 create_render_buffers(struct gl_context
*ctx
, GLsizei n
, GLuint
*renderbuffers
,
1799 const char *func
= dsa
? "glCreateRenderbuffers" : "glGenRenderbuffers";
1806 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
1808 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
1810 for (i
= 0; i
< n
; i
++) {
1811 GLuint name
= first
+ i
;
1812 renderbuffers
[i
] = name
;
1815 allocate_renderbuffer_locked(ctx
, name
, func
);
1817 /* insert a dummy renderbuffer into the hash table */
1818 _mesa_HashInsertLocked(ctx
->Shared
->RenderBuffers
, name
,
1819 &DummyRenderbuffer
);
1823 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
1828 create_render_buffers_err(struct gl_context
*ctx
, GLsizei n
,
1829 GLuint
*renderbuffers
, bool dsa
)
1831 const char *func
= dsa
? "glCreateRenderbuffers" : "glGenRenderbuffers";
1834 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n<0)", func
);
1838 create_render_buffers(ctx
, n
, renderbuffers
, dsa
);
1843 _mesa_GenRenderbuffers_no_error(GLsizei n
, GLuint
*renderbuffers
)
1845 GET_CURRENT_CONTEXT(ctx
);
1846 create_render_buffers(ctx
, n
, renderbuffers
, false);
1851 _mesa_GenRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1853 GET_CURRENT_CONTEXT(ctx
);
1854 create_render_buffers_err(ctx
, n
, renderbuffers
, false);
1859 _mesa_CreateRenderbuffers_no_error(GLsizei n
, GLuint
*renderbuffers
)
1861 GET_CURRENT_CONTEXT(ctx
);
1862 create_render_buffers(ctx
, n
, renderbuffers
, true);
1867 _mesa_CreateRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1869 GET_CURRENT_CONTEXT(ctx
);
1870 create_render_buffers_err(ctx
, n
, renderbuffers
, true);
1875 * Given an internal format token for a render buffer, return the
1876 * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
1877 * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,
1878 * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).
1880 * This is similar to _mesa_base_tex_format() but the set of valid
1881 * internal formats is different.
1883 * Note that even if a format is determined to be legal here, validation
1884 * of the FBO may fail if the format is not supported by the driver/GPU.
1886 * \param internalFormat as passed to glRenderbufferStorage()
1887 * \return the base internal format, or 0 if internalFormat is illegal
1890 _mesa_base_fbo_format(const struct gl_context
*ctx
, GLenum internalFormat
)
1893 * Notes: some formats such as alpha, luminance, etc. were added
1894 * with GL_ARB_framebuffer_object.
1896 switch (internalFormat
) {
1902 return (ctx
->API
== API_OPENGL_COMPAT
&&
1903 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_ALPHA
: 0;
1907 case GL_LUMINANCE12
:
1908 case GL_LUMINANCE16
:
1909 return (ctx
->API
== API_OPENGL_COMPAT
&&
1910 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE
: 0;
1911 case GL_LUMINANCE_ALPHA
:
1912 case GL_LUMINANCE4_ALPHA4
:
1913 case GL_LUMINANCE6_ALPHA2
:
1914 case GL_LUMINANCE8_ALPHA8
:
1915 case GL_LUMINANCE12_ALPHA4
:
1916 case GL_LUMINANCE12_ALPHA12
:
1917 case GL_LUMINANCE16_ALPHA16
:
1918 return (ctx
->API
== API_OPENGL_COMPAT
&&
1919 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE_ALPHA
: 0;
1923 case GL_INTENSITY12
:
1924 case GL_INTENSITY16
:
1925 return (ctx
->API
== API_OPENGL_COMPAT
&&
1926 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_INTENSITY
: 0;
1936 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
1938 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
1946 return _mesa_is_desktop_gl(ctx
) ? GL_RGBA
: 0;
1948 return _mesa_is_desktop_gl(ctx
) || _mesa_has_EXT_texture_norm16(ctx
)
1951 case GL_SRGB8_ALPHA8_EXT
:
1952 return _mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
1953 case GL_STENCIL_INDEX
:
1954 case GL_STENCIL_INDEX1_EXT
:
1955 case GL_STENCIL_INDEX4_EXT
:
1956 case GL_STENCIL_INDEX16_EXT
:
1957 /* There are extensions for GL_STENCIL_INDEX1 and GL_STENCIL_INDEX4 in
1958 * OpenGL ES, but Mesa does not currently support them.
1960 return _mesa_is_desktop_gl(ctx
) ? GL_STENCIL_INDEX
: 0;
1961 case GL_STENCIL_INDEX8_EXT
:
1962 return GL_STENCIL_INDEX
;
1963 case GL_DEPTH_COMPONENT
:
1964 case GL_DEPTH_COMPONENT32
:
1965 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_COMPONENT
: 0;
1966 case GL_DEPTH_COMPONENT16
:
1967 case GL_DEPTH_COMPONENT24
:
1968 return GL_DEPTH_COMPONENT
;
1969 case GL_DEPTH_STENCIL
:
1970 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_STENCIL
: 0;
1971 case GL_DEPTH24_STENCIL8
:
1972 return GL_DEPTH_STENCIL
;
1973 case GL_DEPTH_COMPONENT32F
:
1974 return ctx
->Version
>= 30
1975 || (ctx
->API
== API_OPENGL_COMPAT
&&
1976 ctx
->Extensions
.ARB_depth_buffer_float
)
1977 ? GL_DEPTH_COMPONENT
: 0;
1978 case GL_DEPTH32F_STENCIL8
:
1979 return ctx
->Version
>= 30
1980 || (ctx
->API
== API_OPENGL_COMPAT
&&
1981 ctx
->Extensions
.ARB_depth_buffer_float
)
1982 ? GL_DEPTH_STENCIL
: 0;
1984 return _mesa_has_ARB_texture_rg(ctx
) ? GL_RED
: 0;
1986 return _mesa_has_ARB_texture_rg(ctx
) || _mesa_has_EXT_texture_norm16(ctx
)
1989 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
1992 return _mesa_has_ARB_texture_rg(ctx
) ? GL_RG
: 0;
1994 return _mesa_has_ARB_texture_rg(ctx
) || _mesa_has_EXT_texture_norm16(ctx
)
1997 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
1999 /* signed normalized texture formats */
2003 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2008 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2012 case GL_RGB16_SNORM
:
2013 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2016 case GL_RGBA8_SNORM
:
2017 case GL_RGBA16_SNORM
:
2018 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2020 case GL_ALPHA_SNORM
:
2021 case GL_ALPHA8_SNORM
:
2022 case GL_ALPHA16_SNORM
:
2023 return ctx
->API
== API_OPENGL_COMPAT
&&
2024 ctx
->Extensions
.EXT_texture_snorm
&&
2025 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
2026 case GL_LUMINANCE_SNORM
:
2027 case GL_LUMINANCE8_SNORM
:
2028 case GL_LUMINANCE16_SNORM
:
2029 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2031 case GL_LUMINANCE_ALPHA_SNORM
:
2032 case GL_LUMINANCE8_ALPHA8_SNORM
:
2033 case GL_LUMINANCE16_ALPHA16_SNORM
:
2034 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2035 ? GL_LUMINANCE_ALPHA
: 0;
2036 case GL_INTENSITY_SNORM
:
2037 case GL_INTENSITY8_SNORM
:
2038 case GL_INTENSITY16_SNORM
:
2039 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2044 return ((_mesa_is_desktop_gl(ctx
) &&
2045 ctx
->Extensions
.ARB_texture_rg
&&
2046 ctx
->Extensions
.ARB_texture_float
) ||
2047 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2051 return ((_mesa_is_desktop_gl(ctx
) &&
2052 ctx
->Extensions
.ARB_texture_rg
&&
2053 ctx
->Extensions
.ARB_texture_float
) ||
2054 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2058 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_float
)
2062 return ((_mesa_is_desktop_gl(ctx
) &&
2063 ctx
->Extensions
.ARB_texture_float
) ||
2064 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2067 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_shared_exponent
)
2069 case GL_ALPHA16F_ARB
:
2070 case GL_ALPHA32F_ARB
:
2071 return ctx
->API
== API_OPENGL_COMPAT
&&
2072 ctx
->Extensions
.ARB_texture_float
&&
2073 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
2074 case GL_LUMINANCE16F_ARB
:
2075 case GL_LUMINANCE32F_ARB
:
2076 return ctx
->API
== API_OPENGL_COMPAT
&&
2077 ctx
->Extensions
.ARB_texture_float
&&
2078 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
2079 case GL_LUMINANCE_ALPHA16F_ARB
:
2080 case GL_LUMINANCE_ALPHA32F_ARB
:
2081 return ctx
->API
== API_OPENGL_COMPAT
&&
2082 ctx
->Extensions
.ARB_texture_float
&&
2083 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
2084 case GL_INTENSITY16F_ARB
:
2085 case GL_INTENSITY32F_ARB
:
2086 return ctx
->API
== API_OPENGL_COMPAT
&&
2087 ctx
->Extensions
.ARB_texture_float
&&
2088 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
2089 case GL_R11F_G11F_B10F
:
2090 return ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_packed_float
) ||
2091 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2094 case GL_RGBA8UI_EXT
:
2095 case GL_RGBA16UI_EXT
:
2096 case GL_RGBA32UI_EXT
:
2098 case GL_RGBA16I_EXT
:
2099 case GL_RGBA32I_EXT
:
2100 return ctx
->Version
>= 30
2101 || (_mesa_is_desktop_gl(ctx
) &&
2102 ctx
->Extensions
.EXT_texture_integer
) ? GL_RGBA
: 0;
2105 case GL_RGB16UI_EXT
:
2106 case GL_RGB32UI_EXT
:
2110 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_integer
2118 return ctx
->Version
>= 30
2119 || (_mesa_is_desktop_gl(ctx
) &&
2120 ctx
->Extensions
.ARB_texture_rg
&&
2121 ctx
->Extensions
.EXT_texture_integer
) ? GL_RED
: 0;
2129 return ctx
->Version
>= 30
2130 || (_mesa_is_desktop_gl(ctx
) &&
2131 ctx
->Extensions
.ARB_texture_rg
&&
2132 ctx
->Extensions
.EXT_texture_integer
) ? GL_RG
: 0;
2134 case GL_INTENSITY8I_EXT
:
2135 case GL_INTENSITY8UI_EXT
:
2136 case GL_INTENSITY16I_EXT
:
2137 case GL_INTENSITY16UI_EXT
:
2138 case GL_INTENSITY32I_EXT
:
2139 case GL_INTENSITY32UI_EXT
:
2140 return ctx
->API
== API_OPENGL_COMPAT
&&
2141 ctx
->Extensions
.EXT_texture_integer
&&
2142 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
2144 case GL_LUMINANCE8I_EXT
:
2145 case GL_LUMINANCE8UI_EXT
:
2146 case GL_LUMINANCE16I_EXT
:
2147 case GL_LUMINANCE16UI_EXT
:
2148 case GL_LUMINANCE32I_EXT
:
2149 case GL_LUMINANCE32UI_EXT
:
2150 return ctx
->API
== API_OPENGL_COMPAT
&&
2151 ctx
->Extensions
.EXT_texture_integer
&&
2152 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
2154 case GL_LUMINANCE_ALPHA8I_EXT
:
2155 case GL_LUMINANCE_ALPHA8UI_EXT
:
2156 case GL_LUMINANCE_ALPHA16I_EXT
:
2157 case GL_LUMINANCE_ALPHA16UI_EXT
:
2158 case GL_LUMINANCE_ALPHA32I_EXT
:
2159 case GL_LUMINANCE_ALPHA32UI_EXT
:
2160 return ctx
->API
== API_OPENGL_COMPAT
&&
2161 ctx
->Extensions
.EXT_texture_integer
&&
2162 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
2164 case GL_ALPHA8I_EXT
:
2165 case GL_ALPHA8UI_EXT
:
2166 case GL_ALPHA16I_EXT
:
2167 case GL_ALPHA16UI_EXT
:
2168 case GL_ALPHA32I_EXT
:
2169 case GL_ALPHA32UI_EXT
:
2170 return ctx
->API
== API_OPENGL_COMPAT
&&
2171 ctx
->Extensions
.EXT_texture_integer
&&
2172 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
2175 return (_mesa_is_desktop_gl(ctx
) &&
2176 ctx
->Extensions
.ARB_texture_rgb10_a2ui
)
2177 || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
2180 return _mesa_is_gles(ctx
) || ctx
->Extensions
.ARB_ES2_compatibility
2189 * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk().
2192 invalidate_rb(GLuint key
, void *data
, void *userData
)
2194 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2195 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) userData
;
2197 /* If this is a user-created FBO */
2198 if (_mesa_is_user_fbo(fb
)) {
2200 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2201 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2202 if (att
->Type
== GL_RENDERBUFFER
&&
2203 att
->Renderbuffer
== rb
) {
2204 /* Mark fb status as indeterminate to force re-validation */
2213 /** sentinal value, see below */
2214 #define NO_SAMPLES 1000
2217 _mesa_renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2218 GLenum internalFormat
, GLsizei width
,
2219 GLsizei height
, GLsizei samples
)
2221 const GLenum baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
2223 assert(baseFormat
!= 0);
2224 assert(width
>= 0 && width
<= (GLsizei
) ctx
->Const
.MaxRenderbufferSize
);
2225 assert(height
>= 0 && height
<= (GLsizei
) ctx
->Const
.MaxRenderbufferSize
);
2226 assert(samples
!= NO_SAMPLES
);
2228 assert(samples
> 0);
2229 assert(_mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
2230 internalFormat
, samples
) == GL_NO_ERROR
);
2233 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2235 if (rb
->InternalFormat
== internalFormat
&&
2236 rb
->Width
== (GLuint
) width
&&
2237 rb
->Height
== (GLuint
) height
&&
2238 rb
->NumSamples
== samples
) {
2239 /* no change in allocation needed */
2243 /* These MUST get set by the AllocStorage func */
2244 rb
->Format
= MESA_FORMAT_NONE
;
2245 rb
->NumSamples
= samples
;
2247 /* Now allocate the storage */
2248 assert(rb
->AllocStorage
);
2249 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
2250 /* No error - check/set fields now */
2251 /* If rb->Format == MESA_FORMAT_NONE, the format is unsupported. */
2252 assert(rb
->Width
== (GLuint
) width
);
2253 assert(rb
->Height
== (GLuint
) height
);
2254 rb
->InternalFormat
= internalFormat
;
2255 rb
->_BaseFormat
= baseFormat
;
2256 assert(rb
->_BaseFormat
!= 0);
2259 /* Probably ran out of memory - clear the fields */
2262 rb
->Format
= MESA_FORMAT_NONE
;
2263 rb
->InternalFormat
= GL_NONE
;
2264 rb
->_BaseFormat
= GL_NONE
;
2268 /* Invalidate the framebuffers the renderbuffer is attached in. */
2269 if (rb
->AttachedAnytime
) {
2270 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, invalidate_rb
, rb
);
2275 * Helper function used by renderbuffer_storage_direct() and
2276 * renderbuffer_storage_target().
2277 * samples will be NO_SAMPLES if called by a non-multisample function.
2280 renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2281 GLenum internalFormat
, GLsizei width
,
2282 GLsizei height
, GLsizei samples
, const char *func
)
2285 GLenum sample_count_error
;
2287 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
2288 if (baseFormat
== 0) {
2289 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalFormat=%s)",
2290 func
, _mesa_enum_to_string(internalFormat
));
2294 if (width
< 0 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2295 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid width %d)", func
,
2300 if (height
< 0 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2301 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid height %d)", func
,
2306 if (samples
== NO_SAMPLES
) {
2307 /* NumSamples == 0 indicates non-multisampling */
2311 /* check the sample count;
2312 * note: driver may choose to use more samples than what's requested
2314 sample_count_error
= _mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
2315 internalFormat
, samples
);
2317 /* Section 2.5 (GL Errors) of OpenGL 3.0 specification, page 16:
2319 * "If a negative number is provided where an argument of type sizei or
2320 * sizeiptr is specified, the error INVALID VALUE is generated."
2323 sample_count_error
= GL_INVALID_VALUE
;
2326 if (sample_count_error
!= GL_NO_ERROR
) {
2327 _mesa_error(ctx
, sample_count_error
, "%s(samples=%d)", func
, samples
);
2332 _mesa_renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
);
2336 * Helper function used by _mesa_NamedRenderbufferStorage*().
2337 * samples will be NO_SAMPLES if called by a non-multisample function.
2340 renderbuffer_storage_named(GLuint renderbuffer
, GLenum internalFormat
,
2341 GLsizei width
, GLsizei height
, GLsizei samples
,
2344 GET_CURRENT_CONTEXT(ctx
);
2346 if (MESA_VERBOSE
& VERBOSE_API
) {
2347 if (samples
== NO_SAMPLES
)
2348 _mesa_debug(ctx
, "%s(%u, %s, %d, %d)\n",
2350 _mesa_enum_to_string(internalFormat
),
2353 _mesa_debug(ctx
, "%s(%u, %s, %d, %d, %d)\n",
2355 _mesa_enum_to_string(internalFormat
),
2356 width
, height
, samples
);
2359 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2360 if (!rb
|| rb
== &DummyRenderbuffer
) {
2361 /* ID was reserved, but no real renderbuffer object made yet */
2362 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid renderbuffer %u)",
2363 func
, renderbuffer
);
2367 renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
, func
);
2371 * Helper function used by _mesa_RenderbufferStorage() and
2372 * _mesa_RenderbufferStorageMultisample().
2373 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorage().
2376 renderbuffer_storage_target(GLenum target
, GLenum internalFormat
,
2377 GLsizei width
, GLsizei height
, GLsizei samples
,
2380 GET_CURRENT_CONTEXT(ctx
);
2382 if (MESA_VERBOSE
& VERBOSE_API
) {
2383 if (samples
== NO_SAMPLES
)
2384 _mesa_debug(ctx
, "%s(%s, %s, %d, %d)\n",
2386 _mesa_enum_to_string(target
),
2387 _mesa_enum_to_string(internalFormat
),
2390 _mesa_debug(ctx
, "%s(%s, %s, %d, %d, %d)\n",
2392 _mesa_enum_to_string(target
),
2393 _mesa_enum_to_string(internalFormat
),
2394 width
, height
, samples
);
2397 if (target
!= GL_RENDERBUFFER_EXT
) {
2398 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
2402 if (!ctx
->CurrentRenderbuffer
) {
2403 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(no renderbuffer bound)",
2408 renderbuffer_storage(ctx
, ctx
->CurrentRenderbuffer
, internalFormat
, width
,
2409 height
, samples
, func
);
2414 _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target
, GLeglImageOES image
)
2416 struct gl_renderbuffer
*rb
;
2417 GET_CURRENT_CONTEXT(ctx
);
2419 if (!ctx
->Extensions
.OES_EGL_image
) {
2420 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2421 "glEGLImageTargetRenderbufferStorageOES(unsupported)");
2425 if (target
!= GL_RENDERBUFFER
) {
2426 _mesa_error(ctx
, GL_INVALID_ENUM
,
2427 "EGLImageTargetRenderbufferStorageOES");
2431 rb
= ctx
->CurrentRenderbuffer
;
2433 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2434 "EGLImageTargetRenderbufferStorageOES");
2438 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2440 ctx
->Driver
.EGLImageTargetRenderbufferStorage(ctx
, rb
, image
);
2445 * Helper function for _mesa_GetRenderbufferParameteriv() and
2446 * _mesa_GetFramebufferAttachmentParameteriv()
2447 * We have to be careful to respect the base format. For example, if a
2448 * renderbuffer/texture was created with internalFormat=GL_RGB but the
2449 * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
2450 * we need to return zero.
2453 get_component_bits(GLenum pname
, GLenum baseFormat
, mesa_format format
)
2455 if (_mesa_base_format_has_channel(baseFormat
, pname
))
2456 return _mesa_get_format_bits(format
, pname
);
2464 _mesa_RenderbufferStorage(GLenum target
, GLenum internalFormat
,
2465 GLsizei width
, GLsizei height
)
2467 /* GL_ARB_fbo says calling this function is equivalent to calling
2468 * glRenderbufferStorageMultisample() with samples=0. We pass in
2469 * a token value here just for error reporting purposes.
2471 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2472 NO_SAMPLES
, "glRenderbufferStorage");
2477 _mesa_RenderbufferStorageMultisample(GLenum target
, GLsizei samples
,
2478 GLenum internalFormat
,
2479 GLsizei width
, GLsizei height
)
2481 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2482 samples
, "glRenderbufferStorageMultisample");
2487 * OpenGL ES version of glRenderBufferStorage.
2490 _es_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
2491 GLsizei width
, GLsizei height
)
2493 switch (internalFormat
) {
2495 /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
2496 /* choose a closest format */
2497 internalFormat
= GL_RGB5
;
2503 renderbuffer_storage_target(target
, internalFormat
, width
, height
, 0,
2504 "glRenderbufferStorageEXT");
2508 _mesa_NamedRenderbufferStorage(GLuint renderbuffer
, GLenum internalformat
,
2509 GLsizei width
, GLsizei height
)
2511 /* GL_ARB_fbo says calling this function is equivalent to calling
2512 * glRenderbufferStorageMultisample() with samples=0. We pass in
2513 * a token value here just for error reporting purposes.
2515 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2516 NO_SAMPLES
, "glNamedRenderbufferStorage");
2520 _mesa_NamedRenderbufferStorageMultisample(GLuint renderbuffer
, GLsizei samples
,
2521 GLenum internalformat
,
2522 GLsizei width
, GLsizei height
)
2524 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2526 "glNamedRenderbufferStorageMultisample");
2531 get_render_buffer_parameteriv(struct gl_context
*ctx
,
2532 struct gl_renderbuffer
*rb
, GLenum pname
,
2533 GLint
*params
, const char *func
)
2535 /* No need to flush here since we're just quering state which is
2536 * not effected by rendering.
2540 case GL_RENDERBUFFER_WIDTH_EXT
:
2541 *params
= rb
->Width
;
2543 case GL_RENDERBUFFER_HEIGHT_EXT
:
2544 *params
= rb
->Height
;
2546 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
2547 *params
= rb
->InternalFormat
;
2549 case GL_RENDERBUFFER_RED_SIZE_EXT
:
2550 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
2551 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
2552 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
2553 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
2554 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
2555 *params
= get_component_bits(pname
, rb
->_BaseFormat
, rb
->Format
);
2557 case GL_RENDERBUFFER_SAMPLES
:
2558 if ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_framebuffer_object
)
2559 || _mesa_is_gles3(ctx
)) {
2560 *params
= rb
->NumSamples
;
2565 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname=%s)", func
,
2566 _mesa_enum_to_string(pname
));
2573 _mesa_GetRenderbufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
2575 GET_CURRENT_CONTEXT(ctx
);
2577 if (target
!= GL_RENDERBUFFER_EXT
) {
2578 _mesa_error(ctx
, GL_INVALID_ENUM
,
2579 "glGetRenderbufferParameterivEXT(target)");
2583 if (!ctx
->CurrentRenderbuffer
) {
2584 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetRenderbufferParameterivEXT"
2585 "(no renderbuffer bound)");
2589 get_render_buffer_parameteriv(ctx
, ctx
->CurrentRenderbuffer
, pname
,
2590 params
, "glGetRenderbufferParameteriv");
2595 _mesa_GetNamedRenderbufferParameteriv(GLuint renderbuffer
, GLenum pname
,
2598 GET_CURRENT_CONTEXT(ctx
);
2600 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2601 if (!rb
|| rb
== &DummyRenderbuffer
) {
2602 /* ID was reserved, but no real renderbuffer object made yet */
2603 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetNamedRenderbufferParameteriv"
2604 "(invalid renderbuffer %i)", renderbuffer
);
2608 get_render_buffer_parameteriv(ctx
, rb
, pname
, params
,
2609 "glGetNamedRenderbufferParameteriv");
2613 GLboolean GLAPIENTRY
2614 _mesa_IsFramebuffer(GLuint framebuffer
)
2616 GET_CURRENT_CONTEXT(ctx
);
2617 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
2619 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2620 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
2628 * Check if any of the attachments of the given framebuffer are textures
2629 * (render to texture). Call ctx->Driver.RenderTexture() for such
2633 check_begin_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2636 assert(ctx
->Driver
.RenderTexture
);
2638 if (_mesa_is_winsys_fbo(fb
))
2639 return; /* can't render to texture with winsys framebuffers */
2641 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2642 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2643 if (att
->Texture
&& att
->Renderbuffer
->TexImage
2644 && driver_RenderTexture_is_safe(att
)) {
2645 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
2652 * Examine all the framebuffer's attachments to see if any are textures.
2653 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
2654 * notify the device driver that the texture image may have changed.
2657 check_end_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2659 /* Skip if we know NeedsFinishRenderTexture won't be set. */
2660 if (_mesa_is_winsys_fbo(fb
) && !ctx
->Driver
.BindRenderbufferTexImage
)
2663 if (ctx
->Driver
.FinishRenderTexture
) {
2665 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2666 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2667 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
2668 if (rb
&& rb
->NeedsFinishRenderTexture
) {
2669 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
2677 bind_framebuffer(GLenum target
, GLuint framebuffer
, bool allow_user_names
)
2679 struct gl_framebuffer
*newDrawFb
, *newReadFb
;
2680 GLboolean bindReadBuf
, bindDrawBuf
;
2681 GET_CURRENT_CONTEXT(ctx
);
2684 case GL_DRAW_FRAMEBUFFER_EXT
:
2685 bindDrawBuf
= GL_TRUE
;
2686 bindReadBuf
= GL_FALSE
;
2688 case GL_READ_FRAMEBUFFER_EXT
:
2689 bindDrawBuf
= GL_FALSE
;
2690 bindReadBuf
= GL_TRUE
;
2692 case GL_FRAMEBUFFER_EXT
:
2693 bindDrawBuf
= GL_TRUE
;
2694 bindReadBuf
= GL_TRUE
;
2697 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
2702 /* Binding a user-created framebuffer object */
2703 newDrawFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2704 if (newDrawFb
== &DummyFramebuffer
) {
2705 /* ID was reserved, but no real framebuffer object made yet */
2708 else if (!newDrawFb
&& !allow_user_names
) {
2709 /* All FBO IDs must be Gen'd */
2710 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindFramebuffer(buffer)");
2715 /* create new framebuffer object */
2716 newDrawFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
2718 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
2721 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newDrawFb
);
2723 newReadFb
= newDrawFb
;
2726 /* Binding the window system framebuffer (which was originally set
2727 * with MakeCurrent).
2729 newDrawFb
= ctx
->WinSysDrawBuffer
;
2730 newReadFb
= ctx
->WinSysReadBuffer
;
2733 _mesa_bind_framebuffers(ctx
,
2734 bindDrawBuf
? newDrawFb
: ctx
->DrawBuffer
,
2735 bindReadBuf
? newReadFb
: ctx
->ReadBuffer
);
2739 _mesa_bind_framebuffers(struct gl_context
*ctx
,
2740 struct gl_framebuffer
*newDrawFb
,
2741 struct gl_framebuffer
*newReadFb
)
2743 struct gl_framebuffer
*const oldDrawFb
= ctx
->DrawBuffer
;
2744 struct gl_framebuffer
*const oldReadFb
= ctx
->ReadBuffer
;
2745 const bool bindDrawBuf
= oldDrawFb
!= newDrawFb
;
2746 const bool bindReadBuf
= oldReadFb
!= newReadFb
;
2749 assert(newDrawFb
!= &DummyFramebuffer
);
2752 * OK, now bind the new Draw/Read framebuffers, if they're changing.
2754 * We also check if we're beginning and/or ending render-to-texture.
2755 * When a framebuffer with texture attachments is unbound, call
2756 * ctx->Driver.FinishRenderTexture().
2757 * When a framebuffer with texture attachments is bound, call
2758 * ctx->Driver.RenderTexture().
2760 * Note that if the ReadBuffer has texture attachments we don't consider
2761 * that a render-to-texture case.
2764 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2766 /* check if old readbuffer was render-to-texture */
2767 check_end_texture_render(ctx
, oldReadFb
);
2769 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newReadFb
);
2773 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2774 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleLocations
;
2776 /* check if old framebuffer had any texture attachments */
2778 check_end_texture_render(ctx
, oldDrawFb
);
2780 /* check if newly bound framebuffer has any texture attachments */
2781 check_begin_texture_render(ctx
, newDrawFb
);
2783 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newDrawFb
);
2786 if ((bindDrawBuf
|| bindReadBuf
) && ctx
->Driver
.BindFramebuffer
) {
2787 /* The few classic drivers that actually hook this function really only
2788 * want to know if the draw framebuffer changed.
2790 ctx
->Driver
.BindFramebuffer(ctx
,
2791 bindDrawBuf
? GL_FRAMEBUFFER
: GL_READ_FRAMEBUFFER
,
2792 newDrawFb
, newReadFb
);
2797 _mesa_BindFramebuffer(GLenum target
, GLuint framebuffer
)
2799 GET_CURRENT_CONTEXT(ctx
);
2801 /* OpenGL ES glBindFramebuffer and glBindFramebufferOES use this same entry
2802 * point, but they allow the use of user-generated names.
2804 bind_framebuffer(target
, framebuffer
, _mesa_is_gles(ctx
));
2809 _mesa_BindFramebufferEXT(GLenum target
, GLuint framebuffer
)
2811 /* This function should not be in the dispatch table for core profile /
2812 * OpenGL 3.1, so execution should never get here in those cases -- no
2813 * need for an explicit test.
2815 bind_framebuffer(target
, framebuffer
, true);
2820 _mesa_DeleteFramebuffers(GLsizei n
, const GLuint
*framebuffers
)
2823 GET_CURRENT_CONTEXT(ctx
);
2826 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteFramebuffers(n < 0)");
2830 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2832 for (i
= 0; i
< n
; i
++) {
2833 if (framebuffers
[i
] > 0) {
2834 struct gl_framebuffer
*fb
;
2835 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
2837 assert(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
2839 /* check if deleting currently bound framebuffer object */
2840 if (fb
== ctx
->DrawBuffer
) {
2842 assert(fb
->RefCount
>= 2);
2843 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, 0);
2845 if (fb
== ctx
->ReadBuffer
) {
2847 assert(fb
->RefCount
>= 2);
2848 _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER
, 0);
2851 /* remove from hash table immediately, to free the ID */
2852 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
2854 if (fb
!= &DummyFramebuffer
) {
2855 /* But the object will not be freed until it's no longer
2856 * bound in any context.
2858 _mesa_reference_framebuffer(&fb
, NULL
);
2867 * This is the implementation for glGenFramebuffers and glCreateFramebuffers.
2868 * It is not exposed to the rest of Mesa to encourage the use of
2869 * nameless buffers in driver internals.
2872 create_framebuffers(GLsizei n
, GLuint
*framebuffers
, bool dsa
)
2874 GET_CURRENT_CONTEXT(ctx
);
2877 struct gl_framebuffer
*fb
;
2879 const char *func
= dsa
? "glCreateFramebuffers" : "glGenFramebuffers";
2882 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n < 0)", func
);
2889 _mesa_HashLockMutex(ctx
->Shared
->FrameBuffers
);
2891 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
2893 for (i
= 0; i
< n
; i
++) {
2894 GLuint name
= first
+ i
;
2895 framebuffers
[i
] = name
;
2898 fb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffers
[i
]);
2900 _mesa_HashUnlockMutex(ctx
->Shared
->FrameBuffers
);
2901 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
2906 fb
= &DummyFramebuffer
;
2908 _mesa_HashInsertLocked(ctx
->Shared
->FrameBuffers
, name
, fb
);
2911 _mesa_HashUnlockMutex(ctx
->Shared
->FrameBuffers
);
2916 _mesa_GenFramebuffers(GLsizei n
, GLuint
*framebuffers
)
2918 create_framebuffers(n
, framebuffers
, false);
2923 _mesa_CreateFramebuffers(GLsizei n
, GLuint
*framebuffers
)
2925 create_framebuffers(n
, framebuffers
, true);
2930 _mesa_check_framebuffer_status(struct gl_context
*ctx
,
2931 struct gl_framebuffer
*buffer
)
2933 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
2935 if (_mesa_is_winsys_fbo(buffer
)) {
2936 /* EGL_KHR_surfaceless_context allows the winsys FBO to be incomplete. */
2937 if (buffer
!= &IncompleteFramebuffer
) {
2938 return GL_FRAMEBUFFER_COMPLETE_EXT
;
2940 return GL_FRAMEBUFFER_UNDEFINED
;
2944 /* No need to flush here */
2946 if (buffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE
) {
2947 _mesa_test_framebuffer_completeness(ctx
, buffer
);
2950 return buffer
->_Status
;
2955 _mesa_CheckFramebufferStatus_no_error(GLenum target
)
2957 GET_CURRENT_CONTEXT(ctx
);
2959 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
2960 return _mesa_check_framebuffer_status(ctx
, fb
);
2965 _mesa_CheckFramebufferStatus(GLenum target
)
2967 struct gl_framebuffer
*fb
;
2968 GET_CURRENT_CONTEXT(ctx
);
2970 if (MESA_VERBOSE
& VERBOSE_API
)
2971 _mesa_debug(ctx
, "glCheckFramebufferStatus(%s)\n",
2972 _mesa_enum_to_string(target
));
2974 fb
= get_framebuffer_target(ctx
, target
);
2976 _mesa_error(ctx
, GL_INVALID_ENUM
,
2977 "glCheckFramebufferStatus(invalid target %s)",
2978 _mesa_enum_to_string(target
));
2982 return _mesa_check_framebuffer_status(ctx
, fb
);
2987 _mesa_CheckNamedFramebufferStatus(GLuint framebuffer
, GLenum target
)
2989 struct gl_framebuffer
*fb
;
2990 GET_CURRENT_CONTEXT(ctx
);
2992 /* Validate the target (for conformance's sake) and grab a reference to the
2993 * default framebuffer in case framebuffer = 0.
2994 * Section 9.4 Framebuffer Completeness of the OpenGL 4.5 core spec
2995 * (30.10.2014, PDF page 336) says:
2996 * "If framebuffer is zero, then the status of the default read or
2997 * draw framebuffer (as determined by target) is returned."
3000 case GL_DRAW_FRAMEBUFFER
:
3001 case GL_FRAMEBUFFER
:
3002 fb
= ctx
->WinSysDrawBuffer
;
3004 case GL_READ_FRAMEBUFFER
:
3005 fb
= ctx
->WinSysReadBuffer
;
3008 _mesa_error(ctx
, GL_INVALID_ENUM
,
3009 "glCheckNamedFramebufferStatus(invalid target %s)",
3010 _mesa_enum_to_string(target
));
3015 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3016 "glCheckNamedFramebufferStatus");
3021 return _mesa_check_framebuffer_status(ctx
, fb
);
3026 * Replicate the src attachment point. Used by framebuffer_texture() when
3027 * the same texture is attached at GL_DEPTH_ATTACHMENT and
3028 * GL_STENCIL_ATTACHMENT.
3031 reuse_framebuffer_texture_attachment(struct gl_framebuffer
*fb
,
3032 gl_buffer_index dst
,
3033 gl_buffer_index src
)
3035 struct gl_renderbuffer_attachment
*dst_att
= &fb
->Attachment
[dst
];
3036 struct gl_renderbuffer_attachment
*src_att
= &fb
->Attachment
[src
];
3038 assert(src_att
->Texture
!= NULL
);
3039 assert(src_att
->Renderbuffer
!= NULL
);
3041 _mesa_reference_texobj(&dst_att
->Texture
, src_att
->Texture
);
3042 _mesa_reference_renderbuffer(&dst_att
->Renderbuffer
, src_att
->Renderbuffer
);
3043 dst_att
->Type
= src_att
->Type
;
3044 dst_att
->Complete
= src_att
->Complete
;
3045 dst_att
->TextureLevel
= src_att
->TextureLevel
;
3046 dst_att
->CubeMapFace
= src_att
->CubeMapFace
;
3047 dst_att
->Zoffset
= src_att
->Zoffset
;
3048 dst_att
->Layered
= src_att
->Layered
;
3052 static struct gl_texture_object
*
3053 get_texture_for_framebuffer(struct gl_context
*ctx
, GLuint texture
)
3058 return _mesa_lookup_texture(ctx
, texture
);
3063 * Common code called by gl*FramebufferTexture*() to retrieve the correct
3064 * texture object pointer.
3066 * \param texObj where the pointer to the texture object is returned. Note
3067 * that a successful call may return texObj = NULL.
3069 * \return true if no errors, false if errors
3072 get_texture_for_framebuffer_err(struct gl_context
*ctx
, GLuint texture
,
3073 bool layered
, const char *caller
,
3074 struct gl_texture_object
**texObj
)
3076 *texObj
= NULL
; /* This will get returned if texture = 0. */
3081 *texObj
= _mesa_lookup_texture(ctx
, texture
);
3082 if (*texObj
== NULL
|| (*texObj
)->Target
== 0) {
3083 /* Can't render to a non-existent texture object.
3085 * The OpenGL 4.5 core spec (02.02.2015) in Section 9.2 Binding and
3086 * Managing Framebuffer Objects specifies a different error
3087 * depending upon the calling function (PDF pages 325-328).
3088 * *FramebufferTexture (where layered = GL_TRUE) throws invalid
3089 * value, while the other commands throw invalid operation (where
3090 * layered = GL_FALSE).
3092 const GLenum error
= layered
? GL_INVALID_VALUE
:
3093 GL_INVALID_OPERATION
;
3094 _mesa_error(ctx
, error
,
3095 "%s(non-existent texture %u)", caller
, texture
);
3104 * Common code called by gl*FramebufferTexture() to verify the texture target
3105 * and decide whether or not the attachment should truly be considered
3108 * \param layered true if attachment should be considered layered, false if
3111 * \return true if no errors, false if errors
3114 check_layered_texture_target(struct gl_context
*ctx
, GLenum target
,
3115 const char *caller
, GLboolean
*layered
)
3121 case GL_TEXTURE_1D_ARRAY_EXT
:
3122 case GL_TEXTURE_2D_ARRAY_EXT
:
3123 case GL_TEXTURE_CUBE_MAP
:
3124 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3125 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3129 case GL_TEXTURE_RECTANGLE
:
3130 case GL_TEXTURE_2D_MULTISAMPLE
:
3131 /* These texture types are valid to pass to
3132 * glFramebufferTexture(), but since they aren't layered, it
3133 * is equivalent to calling glFramebufferTexture{1D,2D}().
3135 *layered
= GL_FALSE
;
3139 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3140 "%s(invalid texture target %s)", caller
,
3141 _mesa_enum_to_string(target
));
3147 * Common code called by gl*FramebufferTextureLayer() to verify the texture
3150 * \return true if no errors, false if errors
3153 check_texture_target(struct gl_context
*ctx
, GLenum target
,
3156 /* We're being called by glFramebufferTextureLayer().
3157 * The only legal texture types for that function are 3D,
3158 * cube-map, and 1D/2D/cube-map array textures.
3160 * We don't need to check for GL_ARB_texture_cube_map_array because the
3161 * application wouldn't have been able to create a texture with a
3162 * GL_TEXTURE_CUBE_MAP_ARRAY target if the extension were not enabled.
3166 case GL_TEXTURE_1D_ARRAY
:
3167 case GL_TEXTURE_2D_ARRAY
:
3168 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3169 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3171 case GL_TEXTURE_CUBE_MAP
:
3172 /* We don't need to check the extension (GL_ARB_direct_state_access) or
3173 * GL version (4.5) for GL_TEXTURE_CUBE_MAP because DSA is always
3174 * enabled in core profile. This can be called from
3175 * _mesa_FramebufferTextureLayer in compatibility profile (OpenGL 3.0),
3176 * so we do have to check the profile.
3178 return ctx
->API
== API_OPENGL_CORE
;
3181 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3182 "%s(invalid texture target %s)", caller
,
3183 _mesa_enum_to_string(target
));
3189 * Common code called by glFramebufferTexture*D() to verify the texture
3192 * \return true if no errors, false if errors
3195 check_textarget(struct gl_context
*ctx
, int dims
, GLenum target
,
3196 GLenum textarget
, const char *caller
)
3200 switch (textarget
) {
3204 case GL_TEXTURE_1D_ARRAY
:
3205 err
= dims
!= 1 || !ctx
->Extensions
.EXT_texture_array
;
3210 case GL_TEXTURE_2D_ARRAY
:
3211 err
= dims
!= 2 || !ctx
->Extensions
.EXT_texture_array
||
3212 (_mesa_is_gles(ctx
) && ctx
->Version
< 30);
3214 case GL_TEXTURE_2D_MULTISAMPLE
:
3215 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3217 !ctx
->Extensions
.ARB_texture_multisample
||
3218 (_mesa_is_gles(ctx
) && ctx
->Version
< 31);
3220 case GL_TEXTURE_RECTANGLE
:
3221 err
= dims
!= 2 || _mesa_is_gles(ctx
) ||
3222 !ctx
->Extensions
.NV_texture_rectangle
;
3224 case GL_TEXTURE_CUBE_MAP
:
3225 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3228 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
3229 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
3230 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
3231 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
3232 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
3233 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
3234 err
= dims
!= 2 || !ctx
->Extensions
.ARB_texture_cube_map
;
3240 _mesa_error(ctx
, GL_INVALID_ENUM
,
3241 "%s(unknown textarget 0x%x)", caller
, textarget
);
3246 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3247 "%s(invalid textarget %s)",
3248 caller
, _mesa_enum_to_string(textarget
));
3252 /* Make sure textarget is consistent with the texture's type */
3253 err
= (target
== GL_TEXTURE_CUBE_MAP
) ?
3254 !_mesa_is_cube_face(textarget
): (target
!= textarget
);
3257 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3258 "%s(mismatched texture target)", caller
);
3267 * Common code called by gl*FramebufferTextureLayer() and
3268 * glFramebufferTexture3D() to validate the layer.
3270 * \return true if no errors, false if errors
3273 check_layer(struct gl_context
*ctx
, GLenum target
, GLint layer
,
3276 /* Page 306 (page 328 of the PDF) of the OpenGL 4.5 (Core Profile)
3279 * "An INVALID_VALUE error is generated if texture is non-zero
3280 * and layer is negative."
3283 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(layer %d < 0)", caller
, layer
);
3287 if (target
== GL_TEXTURE_3D
) {
3288 const GLuint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
3289 if (layer
>= maxSize
) {
3290 _mesa_error(ctx
, GL_INVALID_VALUE
,
3291 "%s(invalid layer %u)", caller
, layer
);
3295 else if ((target
== GL_TEXTURE_1D_ARRAY
) ||
3296 (target
== GL_TEXTURE_2D_ARRAY
) ||
3297 (target
== GL_TEXTURE_CUBE_MAP_ARRAY
) ||
3298 (target
== GL_TEXTURE_2D_MULTISAMPLE_ARRAY
)) {
3299 if (layer
>= ctx
->Const
.MaxArrayTextureLayers
) {
3300 _mesa_error(ctx
, GL_INVALID_VALUE
,
3301 "%s(layer %u >= GL_MAX_ARRAY_TEXTURE_LAYERS)",
3306 else if (target
== GL_TEXTURE_CUBE_MAP
) {
3308 _mesa_error(ctx
, GL_INVALID_VALUE
,
3309 "%s(layer %u >= 6)", caller
, layer
);
3319 * Common code called by all gl*FramebufferTexture*() entry points to verify
3322 * \return true if no errors, false if errors
3325 check_level(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
3326 GLenum target
, GLint level
, const char *caller
)
3328 /* Section 9.2.8 of the OpenGL 4.6 specification says:
3330 * "If texture refers to an immutable-format texture, level must be
3331 * greater than or equal to zero and smaller than the value of
3332 * TEXTURE_VIEW_NUM_LEVELS for texture."
3334 const int max_levels
= texObj
->Immutable
? texObj
->ImmutableLevels
:
3335 _mesa_max_texture_levels(ctx
, target
);
3337 if (level
< 0 || level
>= max_levels
) {
3338 _mesa_error(ctx
, GL_INVALID_VALUE
,
3339 "%s(invalid level %d)", caller
, level
);
3347 struct gl_renderbuffer_attachment
*
3348 _mesa_get_and_validate_attachment(struct gl_context
*ctx
,
3349 struct gl_framebuffer
*fb
,
3350 GLenum attachment
, const char *caller
)
3352 /* The window-system framebuffer object is immutable */
3353 if (_mesa_is_winsys_fbo(fb
)) {
3354 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(window-system framebuffer)",
3359 /* Not a hash lookup, so we can afford to get the attachment here. */
3360 bool is_color_attachment
;
3361 struct gl_renderbuffer_attachment
*att
=
3362 get_attachment(ctx
, fb
, attachment
, &is_color_attachment
);
3364 if (is_color_attachment
) {
3365 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3366 "%s(invalid color attachment %s)", caller
,
3367 _mesa_enum_to_string(attachment
));
3369 _mesa_error(ctx
, GL_INVALID_ENUM
,
3370 "%s(invalid attachment %s)", caller
,
3371 _mesa_enum_to_string(attachment
));
3381 _mesa_framebuffer_texture(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
3383 struct gl_renderbuffer_attachment
*att
,
3384 struct gl_texture_object
*texObj
, GLenum textarget
,
3385 GLint level
, GLuint layer
, GLboolean layered
)
3387 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3389 simple_mtx_lock(&fb
->Mutex
);
3391 if (attachment
== GL_DEPTH_ATTACHMENT
&&
3392 texObj
== fb
->Attachment
[BUFFER_STENCIL
].Texture
&&
3393 level
== fb
->Attachment
[BUFFER_STENCIL
].TextureLevel
&&
3394 _mesa_tex_target_to_face(textarget
) ==
3395 fb
->Attachment
[BUFFER_STENCIL
].CubeMapFace
&&
3396 layer
== fb
->Attachment
[BUFFER_STENCIL
].Zoffset
) {
3397 /* The texture object is already attached to the stencil attachment
3398 * point. Don't create a new renderbuffer; just reuse the stencil
3399 * attachment's. This is required to prevent a GL error in
3400 * glGetFramebufferAttachmentParameteriv(GL_DEPTH_STENCIL).
3402 reuse_framebuffer_texture_attachment(fb
, BUFFER_DEPTH
,
3404 } else if (attachment
== GL_STENCIL_ATTACHMENT
&&
3405 texObj
== fb
->Attachment
[BUFFER_DEPTH
].Texture
&&
3406 level
== fb
->Attachment
[BUFFER_DEPTH
].TextureLevel
&&
3407 _mesa_tex_target_to_face(textarget
) ==
3408 fb
->Attachment
[BUFFER_DEPTH
].CubeMapFace
&&
3409 layer
== fb
->Attachment
[BUFFER_DEPTH
].Zoffset
) {
3410 /* As above, but with depth and stencil transposed. */
3411 reuse_framebuffer_texture_attachment(fb
, BUFFER_STENCIL
,
3414 set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
3415 level
, layer
, layered
);
3417 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3418 /* Above we created a new renderbuffer and attached it to the
3419 * depth attachment point. Now attach it to the stencil attachment
3422 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3423 reuse_framebuffer_texture_attachment(fb
,BUFFER_STENCIL
,
3428 /* Set the render-to-texture flag. We'll check this flag in
3429 * glTexImage() and friends to determine if we need to revalidate
3430 * any FBOs that might be rendering into this texture.
3431 * This flag never gets cleared since it's non-trivial to determine
3432 * when all FBOs might be done rendering to this texture. That's OK
3433 * though since it's uncommon to render to a texture then repeatedly
3434 * call glTexImage() to change images in the texture.
3436 texObj
->_RenderToTexture
= GL_TRUE
;
3439 remove_attachment(ctx
, att
);
3440 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3441 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3442 remove_attachment(ctx
, &fb
->Attachment
[BUFFER_STENCIL
]);
3446 invalidate_framebuffer(fb
);
3448 simple_mtx_unlock(&fb
->Mutex
);
3453 framebuffer_texture_with_dims_no_error(GLenum target
, GLenum attachment
,
3454 GLenum textarget
, GLuint texture
,
3455 GLint level
, GLint layer
)
3457 GET_CURRENT_CONTEXT(ctx
);
3459 /* Get the framebuffer object */
3460 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
3462 /* Get the texture object */
3463 struct gl_texture_object
*texObj
=
3464 get_texture_for_framebuffer(ctx
, texture
);
3466 struct gl_renderbuffer_attachment
*att
=
3467 get_attachment(ctx
, fb
, attachment
, NULL
);
3469 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3470 level
, layer
, GL_FALSE
);
3475 framebuffer_texture_with_dims(int dims
, GLenum target
,
3476 GLenum attachment
, GLenum textarget
,
3477 GLuint texture
, GLint level
, GLint layer
,
3480 GET_CURRENT_CONTEXT(ctx
);
3481 struct gl_framebuffer
*fb
;
3482 struct gl_texture_object
*texObj
;
3484 /* Get the framebuffer object */
3485 fb
= get_framebuffer_target(ctx
, target
);
3487 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", caller
,
3488 _mesa_enum_to_string(target
));
3492 /* Get the texture object */
3493 if (!get_texture_for_framebuffer_err(ctx
, texture
, false, caller
, &texObj
))
3497 if (!check_textarget(ctx
, dims
, texObj
->Target
, textarget
, caller
))
3500 if ((dims
== 3) && !check_layer(ctx
, texObj
->Target
, layer
, caller
))
3503 if (!check_level(ctx
, texObj
, textarget
, level
, caller
))
3507 struct gl_renderbuffer_attachment
*att
=
3508 _mesa_get_and_validate_attachment(ctx
, fb
, attachment
, caller
);
3512 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3513 level
, layer
, GL_FALSE
);
3518 _mesa_FramebufferTexture1D_no_error(GLenum target
, GLenum attachment
,
3519 GLenum textarget
, GLuint texture
,
3522 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3528 _mesa_FramebufferTexture1D(GLenum target
, GLenum attachment
,
3529 GLenum textarget
, GLuint texture
, GLint level
)
3531 framebuffer_texture_with_dims(1, target
, attachment
, textarget
, texture
,
3532 level
, 0, "glFramebufferTexture1D");
3537 _mesa_FramebufferTexture2D_no_error(GLenum target
, GLenum attachment
,
3538 GLenum textarget
, GLuint texture
,
3541 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3547 _mesa_FramebufferTexture2D(GLenum target
, GLenum attachment
,
3548 GLenum textarget
, GLuint texture
, GLint level
)
3550 framebuffer_texture_with_dims(2, target
, attachment
, textarget
, texture
,
3551 level
, 0, "glFramebufferTexture2D");
3556 _mesa_FramebufferTexture3D_no_error(GLenum target
, GLenum attachment
,
3557 GLenum textarget
, GLuint texture
,
3558 GLint level
, GLint layer
)
3560 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3561 texture
, level
, layer
);
3566 _mesa_FramebufferTexture3D(GLenum target
, GLenum attachment
,
3567 GLenum textarget
, GLuint texture
,
3568 GLint level
, GLint layer
)
3570 framebuffer_texture_with_dims(3, target
, attachment
, textarget
, texture
,
3571 level
, layer
, "glFramebufferTexture3D");
3575 static ALWAYS_INLINE
void
3576 frame_buffer_texture(GLuint framebuffer
, GLenum target
,
3577 GLenum attachment
, GLuint texture
,
3578 GLint level
, GLint layer
, const char *func
,
3579 bool dsa
, bool no_error
, bool check_layered
)
3581 GET_CURRENT_CONTEXT(ctx
);
3582 GLboolean layered
= GL_FALSE
;
3584 if (!no_error
&& check_layered
) {
3585 if (!_mesa_has_geometry_shaders(ctx
)) {
3586 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3587 "unsupported function (%s) called", func
);
3592 /* Get the framebuffer object */
3593 struct gl_framebuffer
*fb
;
3596 fb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
3598 fb
= get_framebuffer_target(ctx
, target
);
3602 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
, func
);
3606 fb
= get_framebuffer_target(ctx
, target
);
3608 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)",
3609 func
, _mesa_enum_to_string(target
));
3615 /* Get the texture object and framebuffer attachment*/
3616 struct gl_renderbuffer_attachment
*att
;
3617 struct gl_texture_object
*texObj
;
3619 texObj
= get_texture_for_framebuffer(ctx
, texture
);
3620 att
= get_attachment(ctx
, fb
, attachment
, NULL
);
3622 if (!get_texture_for_framebuffer_err(ctx
, texture
, check_layered
, func
,
3626 att
= _mesa_get_and_validate_attachment(ctx
, fb
, attachment
, func
);
3631 GLenum textarget
= 0;
3633 if (check_layered
) {
3634 /* We do this regardless of no_error because this sets layered */
3635 if (!check_layered_texture_target(ctx
, texObj
->Target
, func
,
3641 if (!check_layered
) {
3642 if (!check_texture_target(ctx
, texObj
->Target
, func
))
3645 if (!check_layer(ctx
, texObj
->Target
, layer
, func
))
3649 if (!check_level(ctx
, texObj
, texObj
->Target
, level
, func
))
3653 if (!check_layered
&& texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3654 assert(layer
>= 0 && layer
< 6);
3655 textarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ layer
;
3660 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3661 level
, layer
, layered
);
3665 _mesa_FramebufferTextureLayer_no_error(GLenum target
, GLenum attachment
,
3666 GLuint texture
, GLint level
,
3669 frame_buffer_texture(0, target
, attachment
, texture
, level
, layer
,
3670 "glFramebufferTextureLayer", false, true, false);
3675 _mesa_FramebufferTextureLayer(GLenum target
, GLenum attachment
,
3676 GLuint texture
, GLint level
, GLint layer
)
3678 frame_buffer_texture(0, target
, attachment
, texture
, level
, layer
,
3679 "glFramebufferTextureLayer", false, false, false);
3684 _mesa_NamedFramebufferTextureLayer_no_error(GLuint framebuffer
,
3686 GLuint texture
, GLint level
,
3689 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, layer
,
3690 "glNamedFramebufferTextureLayer", true, true, false);
3695 _mesa_NamedFramebufferTextureLayer(GLuint framebuffer
, GLenum attachment
,
3696 GLuint texture
, GLint level
, GLint layer
)
3698 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, layer
,
3699 "glNamedFramebufferTextureLayer", true, false, false);
3704 _mesa_FramebufferTexture_no_error(GLenum target
, GLenum attachment
,
3705 GLuint texture
, GLint level
)
3707 frame_buffer_texture(0, target
, attachment
, texture
, level
, 0,
3708 "glFramebufferTexture", false, true, true);
3713 _mesa_FramebufferTexture(GLenum target
, GLenum attachment
,
3714 GLuint texture
, GLint level
)
3716 frame_buffer_texture(0, target
, attachment
, texture
, level
, 0,
3717 "glFramebufferTexture", false, false, true);
3721 _mesa_NamedFramebufferTexture_no_error(GLuint framebuffer
, GLenum attachment
,
3722 GLuint texture
, GLint level
)
3724 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, 0,
3725 "glNamedFramebufferTexture", true, true, true);
3730 _mesa_NamedFramebufferTexture(GLuint framebuffer
, GLenum attachment
,
3731 GLuint texture
, GLint level
)
3733 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, 0,
3734 "glNamedFramebufferTexture", true, false, true);
3739 _mesa_framebuffer_renderbuffer(struct gl_context
*ctx
,
3740 struct gl_framebuffer
*fb
,
3742 struct gl_renderbuffer
*rb
)
3744 assert(!_mesa_is_winsys_fbo(fb
));
3746 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3748 assert(ctx
->Driver
.FramebufferRenderbuffer
);
3749 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
3751 /* Some subsequent GL commands may depend on the framebuffer's visual
3752 * after the binding is updated. Update visual info now.
3754 _mesa_update_framebuffer_visual(ctx
, fb
);
3757 static ALWAYS_INLINE
void
3758 framebuffer_renderbuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
3759 GLenum attachment
, GLenum renderbuffertarget
,
3760 GLuint renderbuffer
, const char *func
, bool no_error
)
3762 struct gl_renderbuffer_attachment
*att
;
3763 struct gl_renderbuffer
*rb
;
3764 bool is_color_attachment
;
3766 if (!no_error
&& renderbuffertarget
!= GL_RENDERBUFFER
) {
3767 _mesa_error(ctx
, GL_INVALID_ENUM
,
3768 "%s(renderbuffertarget is not GL_RENDERBUFFER)", func
);
3774 rb
= _mesa_lookup_renderbuffer_err(ctx
, renderbuffer
, func
);
3778 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
3781 /* remove renderbuffer attachment */
3786 if (_mesa_is_winsys_fbo(fb
)) {
3787 /* Can't attach new renderbuffers to a window system framebuffer */
3788 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3789 "%s(window-system framebuffer)", func
);
3793 att
= get_attachment(ctx
, fb
, attachment
, &is_color_attachment
);
3796 * From OpenGL 4.5 spec, section 9.2.7 "Attaching Renderbuffer Images
3797 * to a Framebuffer":
3799 * "An INVALID_OPERATION error is generated if attachment is
3800 * COLOR_- ATTACHMENTm where m is greater than or equal to the
3801 * value of MAX_COLOR_- ATTACHMENTS ."
3803 * If we are at this point, is because the attachment is not valid, so
3804 * if is_color_attachment is true, is because of the previous reason.
3806 if (is_color_attachment
) {
3807 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3808 "%s(invalid color attachment %s)", func
,
3809 _mesa_enum_to_string(attachment
));
3811 _mesa_error(ctx
, GL_INVALID_ENUM
,
3812 "%s(invalid attachment %s)", func
,
3813 _mesa_enum_to_string(attachment
));
3819 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
&&
3820 rb
&& rb
->Format
!= MESA_FORMAT_NONE
) {
3821 /* make sure the renderbuffer is a depth/stencil format */
3822 const GLenum baseFormat
= _mesa_get_format_base_format(rb
->Format
);
3823 if (baseFormat
!= GL_DEPTH_STENCIL
) {
3824 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3825 "%s(renderbuffer is not DEPTH_STENCIL format)", func
);
3831 _mesa_framebuffer_renderbuffer(ctx
, fb
, attachment
, rb
);
3835 framebuffer_renderbuffer_error(struct gl_context
*ctx
,
3836 struct gl_framebuffer
*fb
, GLenum attachment
,
3837 GLenum renderbuffertarget
,
3838 GLuint renderbuffer
, const char *func
)
3840 framebuffer_renderbuffer(ctx
, fb
, attachment
, renderbuffertarget
,
3841 renderbuffer
, func
, false);
3845 framebuffer_renderbuffer_no_error(struct gl_context
*ctx
,
3846 struct gl_framebuffer
*fb
, GLenum attachment
,
3847 GLenum renderbuffertarget
,
3848 GLuint renderbuffer
, const char *func
)
3850 framebuffer_renderbuffer(ctx
, fb
, attachment
, renderbuffertarget
,
3851 renderbuffer
, func
, true);
3855 _mesa_FramebufferRenderbuffer_no_error(GLenum target
, GLenum attachment
,
3856 GLenum renderbuffertarget
,
3857 GLuint renderbuffer
)
3859 GET_CURRENT_CONTEXT(ctx
);
3861 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
3862 framebuffer_renderbuffer_no_error(ctx
, fb
, attachment
, renderbuffertarget
,
3863 renderbuffer
, "glFramebufferRenderbuffer");
3867 _mesa_FramebufferRenderbuffer(GLenum target
, GLenum attachment
,
3868 GLenum renderbuffertarget
,
3869 GLuint renderbuffer
)
3871 struct gl_framebuffer
*fb
;
3872 GET_CURRENT_CONTEXT(ctx
);
3874 fb
= get_framebuffer_target(ctx
, target
);
3876 _mesa_error(ctx
, GL_INVALID_ENUM
,
3877 "glFramebufferRenderbuffer(invalid target %s)",
3878 _mesa_enum_to_string(target
));
3882 framebuffer_renderbuffer_error(ctx
, fb
, attachment
, renderbuffertarget
,
3883 renderbuffer
, "glFramebufferRenderbuffer");
3887 _mesa_NamedFramebufferRenderbuffer_no_error(GLuint framebuffer
,
3889 GLenum renderbuffertarget
,
3890 GLuint renderbuffer
)
3892 GET_CURRENT_CONTEXT(ctx
);
3894 struct gl_framebuffer
*fb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
3895 framebuffer_renderbuffer_no_error(ctx
, fb
, attachment
, renderbuffertarget
,
3897 "glNamedFramebufferRenderbuffer");
3901 _mesa_NamedFramebufferRenderbuffer(GLuint framebuffer
, GLenum attachment
,
3902 GLenum renderbuffertarget
,
3903 GLuint renderbuffer
)
3905 struct gl_framebuffer
*fb
;
3906 GET_CURRENT_CONTEXT(ctx
);
3908 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3909 "glNamedFramebufferRenderbuffer");
3913 framebuffer_renderbuffer_error(ctx
, fb
, attachment
, renderbuffertarget
,
3915 "glNamedFramebufferRenderbuffer");
3920 get_framebuffer_attachment_parameter(struct gl_context
*ctx
,
3921 struct gl_framebuffer
*buffer
,
3922 GLenum attachment
, GLenum pname
,
3923 GLint
*params
, const char *caller
)
3925 const struct gl_renderbuffer_attachment
*att
;
3926 bool is_color_attachment
= false;
3929 /* The error code for an attachment type of GL_NONE differs between APIs.
3931 * From the ES 2.0.25 specification, page 127:
3932 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
3933 * querying any other pname will generate INVALID_ENUM."
3935 * From the OpenGL 3.0 specification, page 337, or identically,
3936 * the OpenGL ES 3.0.4 specification, page 240:
3938 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, no
3939 * framebuffer is bound to target. In this case querying pname
3940 * FRAMEBUFFER_ATTACHMENT_OBJECT_NAME will return zero, and all other
3941 * queries will generate an INVALID_OPERATION error."
3943 err
= ctx
->API
== API_OPENGLES2
&& ctx
->Version
< 30 ?
3944 GL_INVALID_ENUM
: GL_INVALID_OPERATION
;
3946 if (_mesa_is_winsys_fbo(buffer
)) {
3947 /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
3950 * "If the framebuffer currently bound to target is zero, then
3951 * INVALID_OPERATION is generated."
3953 * The EXT_framebuffer_object spec has the same wording, and the
3954 * OES_framebuffer_object spec refers to the EXT_framebuffer_object
3957 if ((!_mesa_is_desktop_gl(ctx
) ||
3958 !ctx
->Extensions
.ARB_framebuffer_object
)
3959 && !_mesa_is_gles3(ctx
)) {
3960 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3961 "%s(window-system framebuffer)", caller
);
3965 if (_mesa_is_gles3(ctx
) && attachment
!= GL_BACK
&&
3966 attachment
!= GL_DEPTH
&& attachment
!= GL_STENCIL
) {
3967 _mesa_error(ctx
, GL_INVALID_ENUM
,
3968 "%s(invalid attachment %s)", caller
,
3969 _mesa_enum_to_string(attachment
));
3973 /* The specs are not clear about how to handle
3974 * GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME with the default framebuffer,
3975 * but dEQP-GLES3 expects an INVALID_ENUM error. This has also been
3978 * https://cvs.khronos.org/bugzilla/show_bug.cgi?id=12928#c1
3979 * and https://bugs.freedesktop.org/show_bug.cgi?id=31947
3981 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME
) {
3982 _mesa_error(ctx
, GL_INVALID_ENUM
,
3983 "%s(requesting GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME "
3984 "when GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is "
3985 "GL_FRAMEBUFFER_DEFAULT is not allowed)", caller
);
3989 /* the default / window-system FBO */
3990 att
= get_fb0_attachment(ctx
, buffer
, attachment
);
3993 /* user-created framebuffer FBO */
3994 att
= get_attachment(ctx
, buffer
, attachment
, &is_color_attachment
);
3999 * From OpenGL 4.5 spec, section 9.2.3 "Framebuffer Object Queries":
4001 * "An INVALID_OPERATION error is generated if a framebuffer object
4002 * is bound to target and attachment is COLOR_ATTACHMENTm where m is
4003 * greater than or equal to the value of MAX_COLOR_ATTACHMENTS."
4005 * If we are at this point, is because the attachment is not valid, so
4006 * if is_color_attachment is true, is because of the previous reason.
4008 if (is_color_attachment
) {
4009 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid color attachment %s)",
4010 caller
, _mesa_enum_to_string(attachment
));
4012 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", caller
,
4013 _mesa_enum_to_string(attachment
));
4018 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
4019 const struct gl_renderbuffer_attachment
*depthAtt
, *stencilAtt
;
4020 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
) {
4021 /* This behavior is first specified in OpenGL 4.4 specification.
4023 * From the OpenGL 4.4 spec page 275:
4024 * "This query cannot be performed for a combined depth+stencil
4025 * attachment, since it does not have a single format."
4027 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4028 "%s(GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE"
4029 " is invalid for depth+stencil attachment)", caller
);
4032 /* the depth and stencil attachments must point to the same buffer */
4033 depthAtt
= get_attachment(ctx
, buffer
, GL_DEPTH_ATTACHMENT
, NULL
);
4034 stencilAtt
= get_attachment(ctx
, buffer
, GL_STENCIL_ATTACHMENT
, NULL
);
4035 if (depthAtt
->Renderbuffer
!= stencilAtt
->Renderbuffer
) {
4036 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4037 "%s(DEPTH/STENCIL attachments differ)", caller
);
4042 /* No need to flush here */
4045 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
4046 /* From the OpenGL spec, 9.2. Binding and Managing Framebuffer Objects:
4048 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
4049 * either no framebuffer is bound to target; or the default framebuffer
4050 * is bound, attachment is DEPTH or STENCIL, and the number of depth or
4051 * stencil bits, respectively, is zero."
4053 * Note that we don't need explicit checks on DEPTH and STENCIL, because
4054 * on the case the spec is pointing, att->Type is already NONE, so we
4055 * just need to check att->Type.
4057 *params
= (_mesa_is_winsys_fbo(buffer
) && att
->Type
!= GL_NONE
) ?
4058 GL_FRAMEBUFFER_DEFAULT
: att
->Type
;
4060 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
4061 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
4062 *params
= att
->Renderbuffer
->Name
;
4064 else if (att
->Type
== GL_TEXTURE
) {
4065 *params
= att
->Texture
->Name
;
4068 assert(att
->Type
== GL_NONE
);
4069 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
4072 goto invalid_pname_enum
;
4076 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
4077 if (att
->Type
== GL_TEXTURE
) {
4078 *params
= att
->TextureLevel
;
4080 else if (att
->Type
== GL_NONE
) {
4081 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4082 _mesa_enum_to_string(pname
));
4085 goto invalid_pname_enum
;
4088 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
4089 if (att
->Type
== GL_TEXTURE
) {
4090 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
4091 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
4097 else if (att
->Type
== GL_NONE
) {
4098 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4099 _mesa_enum_to_string(pname
));
4102 goto invalid_pname_enum
;
4105 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
4106 if (ctx
->API
== API_OPENGLES
) {
4107 goto invalid_pname_enum
;
4108 } else if (att
->Type
== GL_NONE
) {
4109 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4110 _mesa_enum_to_string(pname
));
4111 } else if (att
->Type
== GL_TEXTURE
) {
4112 if (att
->Texture
&& (att
->Texture
->Target
== GL_TEXTURE_3D
||
4113 att
->Texture
->Target
== GL_TEXTURE_2D_ARRAY
)) {
4114 *params
= att
->Zoffset
;
4121 goto invalid_pname_enum
;
4124 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
:
4125 if ((!_mesa_is_desktop_gl(ctx
) ||
4126 !ctx
->Extensions
.ARB_framebuffer_object
)
4127 && !_mesa_is_gles3(ctx
)) {
4128 goto invalid_pname_enum
;
4130 else if (att
->Type
== GL_NONE
) {
4131 if (_mesa_is_winsys_fbo(buffer
) &&
4132 (attachment
== GL_DEPTH
|| attachment
== GL_STENCIL
)) {
4133 *params
= GL_LINEAR
;
4135 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4136 _mesa_enum_to_string(pname
));
4140 if (ctx
->Extensions
.EXT_framebuffer_sRGB
) {
4142 _mesa_get_format_color_encoding(att
->Renderbuffer
->Format
);
4145 /* According to ARB_framebuffer_sRGB, we should return LINEAR
4146 * if the sRGB conversion is unsupported. */
4147 *params
= GL_LINEAR
;
4151 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
:
4152 if ((ctx
->API
!= API_OPENGL_COMPAT
||
4153 !ctx
->Extensions
.ARB_framebuffer_object
)
4154 && ctx
->API
!= API_OPENGL_CORE
4155 && !_mesa_is_gles3(ctx
)) {
4156 goto invalid_pname_enum
;
4158 else if (att
->Type
== GL_NONE
) {
4159 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4160 _mesa_enum_to_string(pname
));
4163 mesa_format format
= att
->Renderbuffer
->Format
;
4165 /* Page 235 (page 247 of the PDF) in section 6.1.13 of the OpenGL ES
4168 * "If pname is FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE.... If
4169 * attachment is DEPTH_STENCIL_ATTACHMENT the query will fail and
4170 * generate an INVALID_OPERATION error.
4172 if (_mesa_is_gles3(ctx
) &&
4173 attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
4174 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4176 "GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE of "
4177 "GL_DEPTH_STENCIL_ATTACHMENT)", caller
);
4181 if (format
== MESA_FORMAT_S_UINT8
) {
4185 else if (format
== MESA_FORMAT_Z32_FLOAT_S8X24_UINT
) {
4186 /* depends on the attachment parameter */
4187 if (attachment
== GL_STENCIL_ATTACHMENT
) {
4195 *params
= _mesa_get_format_datatype(format
);
4199 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
4200 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
4201 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
4202 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
4203 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
4204 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
4205 if ((!_mesa_is_desktop_gl(ctx
) ||
4206 !ctx
->Extensions
.ARB_framebuffer_object
)
4207 && !_mesa_is_gles3(ctx
)) {
4208 goto invalid_pname_enum
;
4210 else if (att
->Texture
) {
4211 const struct gl_texture_image
*texImage
=
4212 _mesa_select_tex_image(att
->Texture
, att
->Texture
->Target
,
4215 *params
= get_component_bits(pname
, texImage
->_BaseFormat
,
4216 texImage
->TexFormat
);
4222 else if (att
->Renderbuffer
) {
4223 *params
= get_component_bits(pname
, att
->Renderbuffer
->_BaseFormat
,
4224 att
->Renderbuffer
->Format
);
4227 assert(att
->Type
== GL_NONE
);
4228 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4229 _mesa_enum_to_string(pname
));
4232 case GL_FRAMEBUFFER_ATTACHMENT_LAYERED
:
4233 if (!_mesa_has_geometry_shaders(ctx
)) {
4234 goto invalid_pname_enum
;
4235 } else if (att
->Type
== GL_TEXTURE
) {
4236 *params
= att
->Layered
;
4237 } else if (att
->Type
== GL_NONE
) {
4238 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4239 _mesa_enum_to_string(pname
));
4241 goto invalid_pname_enum
;
4245 goto invalid_pname_enum
;
4251 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname %s)", caller
,
4252 _mesa_enum_to_string(pname
));
4258 _mesa_GetFramebufferAttachmentParameteriv(GLenum target
, GLenum attachment
,
4259 GLenum pname
, GLint
*params
)
4261 GET_CURRENT_CONTEXT(ctx
);
4262 struct gl_framebuffer
*buffer
;
4264 buffer
= get_framebuffer_target(ctx
, target
);
4266 _mesa_error(ctx
, GL_INVALID_ENUM
,
4267 "glGetFramebufferAttachmentParameteriv(invalid target %s)",
4268 _mesa_enum_to_string(target
));
4272 get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
4274 "glGetFramebufferAttachmentParameteriv");
4279 _mesa_GetNamedFramebufferAttachmentParameteriv(GLuint framebuffer
,
4281 GLenum pname
, GLint
*params
)
4283 GET_CURRENT_CONTEXT(ctx
);
4284 struct gl_framebuffer
*buffer
;
4287 buffer
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4288 "glGetNamedFramebufferAttachmentParameteriv");
4294 * Section 9.2 Binding and Managing Framebuffer Objects of the OpenGL
4295 * 4.5 core spec (30.10.2014, PDF page 314):
4296 * "If framebuffer is zero, then the default draw framebuffer is
4299 buffer
= ctx
->WinSysDrawBuffer
;
4302 get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
4304 "glGetNamedFramebufferAttachmentParameteriv");
4309 _mesa_NamedFramebufferParameteri(GLuint framebuffer
, GLenum pname
,
4312 GET_CURRENT_CONTEXT(ctx
);
4313 struct gl_framebuffer
*fb
= NULL
;
4315 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
4316 !ctx
->Extensions
.ARB_sample_locations
) {
4317 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4318 "glNamedFramebufferParameteri("
4319 "neither ARB_framebuffer_no_attachments nor "
4320 "ARB_sample_locations is available)");
4325 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4326 "glNamedFramebufferParameteri");
4328 fb
= ctx
->WinSysDrawBuffer
;
4332 framebuffer_parameteri(ctx
, fb
, pname
, param
,
4333 "glNamedFramebufferParameteriv");
4339 _mesa_GetNamedFramebufferParameteriv(GLuint framebuffer
, GLenum pname
,
4342 GET_CURRENT_CONTEXT(ctx
);
4343 struct gl_framebuffer
*fb
;
4345 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
4346 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4347 "glNamedFramebufferParameteriv("
4348 "neither ARB_framebuffer_no_attachments nor ARB_sample_locations"
4354 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4355 "glGetNamedFramebufferParameteriv");
4357 fb
= ctx
->WinSysDrawBuffer
;
4360 get_framebuffer_parameteriv(ctx
, fb
, pname
, param
,
4361 "glGetNamedFramebufferParameteriv");
4367 invalidate_framebuffer_storage(struct gl_context
*ctx
,
4368 struct gl_framebuffer
*fb
,
4369 GLsizei numAttachments
,
4370 const GLenum
*attachments
, GLint x
, GLint y
,
4371 GLsizei width
, GLsizei height
, const char *name
)
4375 /* Section 17.4 Whole Framebuffer Operations of the OpenGL 4.5 Core
4376 * Spec (2.2.2015, PDF page 522) says:
4377 * "An INVALID_VALUE error is generated if numAttachments, width, or
4378 * height is negative."
4380 if (numAttachments
< 0) {
4381 _mesa_error(ctx
, GL_INVALID_VALUE
,
4382 "%s(numAttachments < 0)", name
);
4387 _mesa_error(ctx
, GL_INVALID_VALUE
,
4388 "%s(width < 0)", name
);
4393 _mesa_error(ctx
, GL_INVALID_VALUE
,
4394 "%s(height < 0)", name
);
4398 /* The GL_ARB_invalidate_subdata spec says:
4400 * "If an attachment is specified that does not exist in the
4401 * framebuffer bound to <target>, it is ignored."
4405 * "If <attachments> contains COLOR_ATTACHMENTm and m is greater than
4406 * or equal to the value of MAX_COLOR_ATTACHMENTS, then the error
4407 * INVALID_OPERATION is generated."
4409 * No mention is made of GL_AUXi being out of range. Therefore, we allow
4410 * any enum that can be allowed by the API (OpenGL ES 3.0 has a different
4411 * set of retrictions).
4413 for (i
= 0; i
< numAttachments
; i
++) {
4414 if (_mesa_is_winsys_fbo(fb
)) {
4415 switch (attachments
[i
]) {
4421 /* Accumulation buffers and auxilary buffers were removed in
4422 * OpenGL 3.1, and they never existed in OpenGL ES.
4424 if (ctx
->API
!= API_OPENGL_COMPAT
)
4434 case GL_FRONT_RIGHT
:
4435 if (!_mesa_is_desktop_gl(ctx
))
4442 switch (attachments
[i
]) {
4443 case GL_DEPTH_ATTACHMENT
:
4444 case GL_STENCIL_ATTACHMENT
:
4446 case GL_DEPTH_STENCIL_ATTACHMENT
:
4447 /* GL_DEPTH_STENCIL_ATTACHMENT is a valid attachment point only
4448 * in desktop and ES 3.0 profiles. Note that OES_packed_depth_stencil
4449 * extension does not make this attachment point valid on ES 2.0.
4451 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
))
4454 case GL_COLOR_ATTACHMENT0
:
4455 case GL_COLOR_ATTACHMENT1
:
4456 case GL_COLOR_ATTACHMENT2
:
4457 case GL_COLOR_ATTACHMENT3
:
4458 case GL_COLOR_ATTACHMENT4
:
4459 case GL_COLOR_ATTACHMENT5
:
4460 case GL_COLOR_ATTACHMENT6
:
4461 case GL_COLOR_ATTACHMENT7
:
4462 case GL_COLOR_ATTACHMENT8
:
4463 case GL_COLOR_ATTACHMENT9
:
4464 case GL_COLOR_ATTACHMENT10
:
4465 case GL_COLOR_ATTACHMENT11
:
4466 case GL_COLOR_ATTACHMENT12
:
4467 case GL_COLOR_ATTACHMENT13
:
4468 case GL_COLOR_ATTACHMENT14
:
4469 case GL_COLOR_ATTACHMENT15
: {
4470 unsigned k
= attachments
[i
] - GL_COLOR_ATTACHMENT0
;
4471 if (k
>= ctx
->Const
.MaxColorAttachments
) {
4472 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4473 "%s(attachment >= max. color attachments)", name
);
4484 /* We don't actually do anything for this yet. Just return after
4485 * validating the parameters and generating the required errors.
4490 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", name
,
4491 _mesa_enum_to_string(attachments
[i
]));
4497 _mesa_InvalidateSubFramebuffer_no_error(GLenum target
, GLsizei numAttachments
,
4498 const GLenum
*attachments
, GLint x
,
4499 GLint y
, GLsizei width
, GLsizei height
)
4506 _mesa_InvalidateSubFramebuffer(GLenum target
, GLsizei numAttachments
,
4507 const GLenum
*attachments
, GLint x
, GLint y
,
4508 GLsizei width
, GLsizei height
)
4510 struct gl_framebuffer
*fb
;
4511 GET_CURRENT_CONTEXT(ctx
);
4513 fb
= get_framebuffer_target(ctx
, target
);
4515 _mesa_error(ctx
, GL_INVALID_ENUM
,
4516 "glInvalidateSubFramebuffer(invalid target %s)",
4517 _mesa_enum_to_string(target
));
4521 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4522 x
, y
, width
, height
,
4523 "glInvalidateSubFramebuffer");
4528 _mesa_InvalidateNamedFramebufferSubData(GLuint framebuffer
,
4529 GLsizei numAttachments
,
4530 const GLenum
*attachments
,
4532 GLsizei width
, GLsizei height
)
4534 struct gl_framebuffer
*fb
;
4535 GET_CURRENT_CONTEXT(ctx
);
4537 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
4538 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
4539 * default draw framebuffer is affected."
4542 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4543 "glInvalidateNamedFramebufferSubData");
4548 fb
= ctx
->WinSysDrawBuffer
;
4550 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4551 x
, y
, width
, height
,
4552 "glInvalidateNamedFramebufferSubData");
4557 _mesa_InvalidateFramebuffer_no_error(GLenum target
, GLsizei numAttachments
,
4558 const GLenum
*attachments
)
4565 _mesa_InvalidateFramebuffer(GLenum target
, GLsizei numAttachments
,
4566 const GLenum
*attachments
)
4568 struct gl_framebuffer
*fb
;
4569 GET_CURRENT_CONTEXT(ctx
);
4571 fb
= get_framebuffer_target(ctx
, target
);
4573 _mesa_error(ctx
, GL_INVALID_ENUM
,
4574 "glInvalidateFramebuffer(invalid target %s)",
4575 _mesa_enum_to_string(target
));
4579 /* The GL_ARB_invalidate_subdata spec says:
4583 * void InvalidateFramebuffer(enum target,
4584 * sizei numAttachments,
4585 * const enum *attachments);
4587 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
4588 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
4589 * <MAX_VIEWPORT_DIMS[1]> respectively."
4591 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4593 ctx
->Const
.MaxViewportWidth
,
4594 ctx
->Const
.MaxViewportHeight
,
4595 "glInvalidateFramebuffer");
4600 _mesa_InvalidateNamedFramebufferData(GLuint framebuffer
,
4601 GLsizei numAttachments
,
4602 const GLenum
*attachments
)
4604 struct gl_framebuffer
*fb
;
4605 GET_CURRENT_CONTEXT(ctx
);
4607 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
4608 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
4609 * default draw framebuffer is affected."
4612 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4613 "glInvalidateNamedFramebufferData");
4618 fb
= ctx
->WinSysDrawBuffer
;
4620 /* The GL_ARB_invalidate_subdata spec says:
4624 * void InvalidateFramebuffer(enum target,
4625 * sizei numAttachments,
4626 * const enum *attachments);
4628 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
4629 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
4630 * <MAX_VIEWPORT_DIMS[1]> respectively."
4632 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4634 ctx
->Const
.MaxViewportWidth
,
4635 ctx
->Const
.MaxViewportHeight
,
4636 "glInvalidateNamedFramebufferData");
4641 _mesa_DiscardFramebufferEXT(GLenum target
, GLsizei numAttachments
,
4642 const GLenum
*attachments
)
4644 struct gl_framebuffer
*fb
;
4647 GET_CURRENT_CONTEXT(ctx
);
4649 fb
= get_framebuffer_target(ctx
, target
);
4651 _mesa_error(ctx
, GL_INVALID_ENUM
,
4652 "glDiscardFramebufferEXT(target %s)",
4653 _mesa_enum_to_string(target
));
4657 if (numAttachments
< 0) {
4658 _mesa_error(ctx
, GL_INVALID_VALUE
,
4659 "glDiscardFramebufferEXT(numAttachments < 0)");
4663 for (i
= 0; i
< numAttachments
; i
++) {
4664 switch (attachments
[i
]) {
4668 if (_mesa_is_user_fbo(fb
))
4671 case GL_COLOR_ATTACHMENT0
:
4672 case GL_DEPTH_ATTACHMENT
:
4673 case GL_STENCIL_ATTACHMENT
:
4674 if (_mesa_is_winsys_fbo(fb
))
4682 if (ctx
->Driver
.DiscardFramebuffer
)
4683 ctx
->Driver
.DiscardFramebuffer(ctx
, target
, numAttachments
, attachments
);
4688 _mesa_error(ctx
, GL_INVALID_ENUM
,
4689 "glDiscardFramebufferEXT(attachment %s)",
4690 _mesa_enum_to_string(attachments
[i
]));
4694 sample_locations(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
4695 GLuint start
, GLsizei count
, const GLfloat
*v
, bool no_error
,
4701 if (!ctx
->Extensions
.ARB_sample_locations
) {
4702 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4704 "(ARB_sample_locations not available)", name
);
4708 if (start
+ count
> MAX_SAMPLE_LOCATION_TABLE_SIZE
) {
4709 _mesa_error(ctx
, GL_INVALID_VALUE
,
4710 "%s(start+size > sample location table size)", name
);
4715 if (!fb
->SampleLocationTable
) {
4716 size_t size
= MAX_SAMPLE_LOCATION_TABLE_SIZE
* 2 * sizeof(GLfloat
);
4717 fb
->SampleLocationTable
= malloc(size
);
4718 if (!fb
->SampleLocationTable
) {
4719 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
4720 "Cannot allocate sample location table");
4723 for (i
= 0; i
< MAX_SAMPLE_LOCATION_TABLE_SIZE
* 2; i
++)
4724 fb
->SampleLocationTable
[i
] = 0.5f
;
4727 for (i
= 0; i
< count
* 2; i
++) {
4728 /* The ARB_sample_locations spec says:
4730 * Sample locations outside of [0,1] result in undefined
4733 * To simplify driver implementations, we choose to clamp to
4734 * [0,1] and change NaN into 0.5.
4736 if (isnan(v
[i
]) || v
[i
] < 0.0f
|| v
[i
] > 1.0f
) {
4737 static GLuint msg_id
= 0;
4738 static const char* msg
= "Invalid sample location specified";
4739 _mesa_debug_get_id(&msg_id
);
4741 _mesa_log_msg(ctx
, MESA_DEBUG_SOURCE_API
, MESA_DEBUG_TYPE_UNDEFINED
,
4742 msg_id
, MESA_DEBUG_SEVERITY_HIGH
, strlen(msg
), msg
);
4746 fb
->SampleLocationTable
[start
* 2 + i
] = 0.5f
;
4748 fb
->SampleLocationTable
[start
* 2 + i
] = CLAMP(v
[i
], 0.0f
, 1.0f
);
4751 if (fb
== ctx
->DrawBuffer
)
4752 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleLocations
;
4756 _mesa_FramebufferSampleLocationsfvARB(GLenum target
, GLuint start
,
4757 GLsizei count
, const GLfloat
*v
)
4759 struct gl_framebuffer
*fb
;
4761 GET_CURRENT_CONTEXT(ctx
);
4763 fb
= get_framebuffer_target(ctx
, target
);
4765 _mesa_error(ctx
, GL_INVALID_ENUM
,
4766 "glFramebufferSampleLocationsfvARB(target %s)",
4767 _mesa_enum_to_string(target
));
4771 sample_locations(ctx
, fb
, start
, count
, v
, false,
4772 "glFramebufferSampleLocationsfvARB");
4776 _mesa_NamedFramebufferSampleLocationsfvARB(GLuint framebuffer
, GLuint start
,
4777 GLsizei count
, const GLfloat
*v
)
4779 struct gl_framebuffer
*fb
;
4781 GET_CURRENT_CONTEXT(ctx
);
4784 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4785 "glNamedFramebufferSampleLocationsfvARB");
4790 fb
= ctx
->WinSysDrawBuffer
;
4792 sample_locations(ctx
, fb
, start
, count
, v
, false,
4793 "glNamedFramebufferSampleLocationsfvARB");
4797 _mesa_FramebufferSampleLocationsfvARB_no_error(GLenum target
, GLuint start
,
4798 GLsizei count
, const GLfloat
*v
)
4800 GET_CURRENT_CONTEXT(ctx
);
4801 sample_locations(ctx
, get_framebuffer_target(ctx
, target
), start
,
4802 count
, v
, true, "glFramebufferSampleLocationsfvARB");
4806 _mesa_NamedFramebufferSampleLocationsfvARB_no_error(GLuint framebuffer
,
4807 GLuint start
, GLsizei count
,
4810 GET_CURRENT_CONTEXT(ctx
);
4811 sample_locations(ctx
, _mesa_lookup_framebuffer(ctx
, framebuffer
), start
,
4812 count
, v
, true, "glNamedFramebufferSampleLocationsfvARB");
4816 _mesa_EvaluateDepthValuesARB(void)
4818 GET_CURRENT_CONTEXT(ctx
);
4820 if (!ctx
->Extensions
.ARB_sample_locations
) {
4821 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4822 "EvaluateDepthValuesARB not supported (neither "
4823 "ARB_sample_locations nor NV_sample_locations is available)");
4827 if (ctx
->Driver
.EvaluateDepthValues
)
4828 ctx
->Driver
.EvaluateDepthValues(ctx
);