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
->NumStorageSamples
= texImage
->NumSamples
;
485 rb
->TexImage
= texImage
;
487 if (driver_RenderTexture_is_safe(att
))
488 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
492 * Bind a texture object to an attachment point.
493 * The previous binding, if any, will be removed first.
496 set_texture_attachment(struct gl_context
*ctx
,
497 struct gl_framebuffer
*fb
,
498 struct gl_renderbuffer_attachment
*att
,
499 struct gl_texture_object
*texObj
,
500 GLenum texTarget
, GLuint level
, GLuint layer
,
503 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
505 if (rb
&& rb
->NeedsFinishRenderTexture
)
506 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
508 if (att
->Texture
== texObj
) {
509 /* re-attaching same texture */
510 assert(att
->Type
== GL_TEXTURE
);
514 remove_attachment(ctx
, att
);
515 att
->Type
= GL_TEXTURE
;
516 assert(!att
->Texture
);
517 _mesa_reference_texobj(&att
->Texture
, texObj
);
519 invalidate_framebuffer(fb
);
521 /* always update these fields */
522 att
->TextureLevel
= level
;
523 att
->CubeMapFace
= _mesa_tex_target_to_face(texTarget
);
524 att
->Zoffset
= layer
;
525 att
->Layered
= layered
;
526 att
->Complete
= GL_FALSE
;
528 _mesa_update_texture_renderbuffer(ctx
, fb
, att
);
533 * Bind a renderbuffer to an attachment point.
534 * The previous binding, if any, will be removed first.
537 set_renderbuffer_attachment(struct gl_context
*ctx
,
538 struct gl_renderbuffer_attachment
*att
,
539 struct gl_renderbuffer
*rb
)
541 /* XXX check if re-doing same attachment, exit early */
542 remove_attachment(ctx
, att
);
543 att
->Type
= GL_RENDERBUFFER_EXT
;
544 att
->Texture
= NULL
; /* just to be safe */
545 att
->Layered
= GL_FALSE
;
546 att
->Complete
= GL_FALSE
;
547 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
552 * Fallback for ctx->Driver.FramebufferRenderbuffer()
553 * Attach a renderbuffer object to a framebuffer object.
556 _mesa_FramebufferRenderbuffer_sw(struct gl_context
*ctx
,
557 struct gl_framebuffer
*fb
,
559 struct gl_renderbuffer
*rb
)
561 struct gl_renderbuffer_attachment
*att
;
563 simple_mtx_lock(&fb
->Mutex
);
565 att
= get_attachment(ctx
, fb
, attachment
, NULL
);
568 set_renderbuffer_attachment(ctx
, att
, rb
);
569 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
570 /* do stencil attachment here (depth already done above) */
571 att
= get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
, NULL
);
573 set_renderbuffer_attachment(ctx
, att
, rb
);
575 rb
->AttachedAnytime
= GL_TRUE
;
578 remove_attachment(ctx
, att
);
579 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
580 /* detach stencil (depth was detached above) */
581 att
= get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
, NULL
);
583 remove_attachment(ctx
, att
);
587 invalidate_framebuffer(fb
);
589 simple_mtx_unlock(&fb
->Mutex
);
594 * Fallback for ctx->Driver.ValidateFramebuffer()
595 * Check if the renderbuffer's formats are supported by the software
597 * Drivers should probably override this.
600 _mesa_validate_framebuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
603 for (buf
= 0; buf
< BUFFER_COUNT
; buf
++) {
604 const struct gl_renderbuffer
*rb
= fb
->Attachment
[buf
].Renderbuffer
;
606 switch (rb
->_BaseFormat
) {
608 case GL_LUMINANCE_ALPHA
:
613 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
617 switch (rb
->Format
) {
618 /* XXX This list is likely incomplete. */
619 case MESA_FORMAT_R9G9B9E5_FLOAT
:
620 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
623 /* render buffer format is supported by software rendering */
632 * Return true if the framebuffer has a combined depth/stencil
633 * renderbuffer attached.
636 _mesa_has_depthstencil_combined(const struct gl_framebuffer
*fb
)
638 const struct gl_renderbuffer_attachment
*depth
=
639 &fb
->Attachment
[BUFFER_DEPTH
];
640 const struct gl_renderbuffer_attachment
*stencil
=
641 &fb
->Attachment
[BUFFER_STENCIL
];
643 if (depth
->Type
== stencil
->Type
) {
644 if (depth
->Type
== GL_RENDERBUFFER_EXT
&&
645 depth
->Renderbuffer
== stencil
->Renderbuffer
)
648 if (depth
->Type
== GL_TEXTURE
&&
649 depth
->Texture
== stencil
->Texture
)
661 att_incomplete(const char *msg
)
663 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
664 _mesa_debug(NULL
, "attachment incomplete: %s\n", msg
);
673 fbo_incomplete(struct gl_context
*ctx
, const char *msg
, int index
)
675 static GLuint msg_id
;
677 _mesa_gl_debug(ctx
, &msg_id
,
678 MESA_DEBUG_SOURCE_API
,
679 MESA_DEBUG_TYPE_OTHER
,
680 MESA_DEBUG_SEVERITY_MEDIUM
,
681 "FBO incomplete: %s [%d]\n", msg
, index
);
683 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
684 _mesa_debug(NULL
, "FBO Incomplete: %s [%d]\n", msg
, index
);
690 * Is the given base format a legal format for a color renderbuffer?
693 _mesa_is_legal_color_format(const struct gl_context
*ctx
, GLenum baseFormat
)
695 switch (baseFormat
) {
700 case GL_LUMINANCE_ALPHA
:
703 return ctx
->API
== API_OPENGL_COMPAT
&&
704 ctx
->Extensions
.ARB_framebuffer_object
;
707 return ctx
->Extensions
.ARB_texture_rg
;
715 * Is the given base format a legal format for a color renderbuffer?
718 is_format_color_renderable(const struct gl_context
*ctx
, mesa_format format
,
719 GLenum internalFormat
)
721 const GLenum baseFormat
=
722 _mesa_get_format_base_format(format
);
725 valid
= _mesa_is_legal_color_format(ctx
, baseFormat
);
726 if (!valid
|| _mesa_is_desktop_gl(ctx
)) {
730 /* Reject additional cases for GLES */
731 switch (internalFormat
) {
735 return _mesa_has_EXT_render_snorm(ctx
);
738 case GL_RGBA16_SNORM
:
739 return _mesa_has_EXT_texture_norm16(ctx
) &&
740 _mesa_has_EXT_render_snorm(ctx
);
759 if (internalFormat
!= GL_RGB10_A2
&&
760 (format
== MESA_FORMAT_B10G10R10A2_UNORM
||
761 format
== MESA_FORMAT_B10G10R10X2_UNORM
||
762 format
== MESA_FORMAT_R10G10B10A2_UNORM
||
763 format
== MESA_FORMAT_R10G10B10X2_UNORM
)) {
772 * Is the given base format a legal format for a depth/stencil renderbuffer?
775 is_legal_depth_format(const struct gl_context
*ctx
, GLenum baseFormat
)
777 switch (baseFormat
) {
778 case GL_DEPTH_COMPONENT
:
779 case GL_DEPTH_STENCIL_EXT
:
788 * Test if an attachment point is complete and update its Complete field.
789 * \param format if GL_COLOR, this is a color attachment point,
790 * if GL_DEPTH, this is a depth component attachment point,
791 * if GL_STENCIL, this is a stencil component attachment point.
794 test_attachment_completeness(const struct gl_context
*ctx
, GLenum format
,
795 struct gl_renderbuffer_attachment
*att
)
797 assert(format
== GL_COLOR
|| format
== GL_DEPTH
|| format
== GL_STENCIL
);
799 /* assume complete */
800 att
->Complete
= GL_TRUE
;
802 /* Look for reasons why the attachment might be incomplete */
803 if (att
->Type
== GL_TEXTURE
) {
804 const struct gl_texture_object
*texObj
= att
->Texture
;
805 const struct gl_texture_image
*texImage
;
809 att_incomplete("no texobj");
810 att
->Complete
= GL_FALSE
;
814 texImage
= texObj
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
816 att_incomplete("no teximage");
817 att
->Complete
= GL_FALSE
;
820 if (texImage
->Width
< 1 || texImage
->Height
< 1) {
821 att_incomplete("teximage width/height=0");
822 att
->Complete
= GL_FALSE
;
826 switch (texObj
->Target
) {
828 if (att
->Zoffset
>= texImage
->Depth
) {
829 att_incomplete("bad z offset");
830 att
->Complete
= GL_FALSE
;
834 case GL_TEXTURE_1D_ARRAY
:
835 if (att
->Zoffset
>= texImage
->Height
) {
836 att_incomplete("bad 1D-array layer");
837 att
->Complete
= GL_FALSE
;
841 case GL_TEXTURE_2D_ARRAY
:
842 if (att
->Zoffset
>= texImage
->Depth
) {
843 att_incomplete("bad 2D-array layer");
844 att
->Complete
= GL_FALSE
;
848 case GL_TEXTURE_CUBE_MAP_ARRAY
:
849 if (att
->Zoffset
>= texImage
->Depth
) {
850 att_incomplete("bad cube-array layer");
851 att
->Complete
= GL_FALSE
;
857 baseFormat
= texImage
->_BaseFormat
;
859 if (format
== GL_COLOR
) {
860 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
861 att_incomplete("bad format");
862 att
->Complete
= GL_FALSE
;
865 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
866 att_incomplete("compressed internalformat");
867 att
->Complete
= GL_FALSE
;
871 /* OES_texture_float allows creation and use of floating point
872 * textures with GL_FLOAT, GL_HALF_FLOAT but it does not allow
873 * these textures to be used as a render target, this is done via
874 * GL_EXT_color_buffer(_half)_float with set of new sized types.
876 if (_mesa_is_gles(ctx
) && (texObj
->_IsFloat
|| texObj
->_IsHalfFloat
)) {
877 att_incomplete("bad internal format");
878 att
->Complete
= GL_FALSE
;
882 else if (format
== GL_DEPTH
) {
883 if (baseFormat
== GL_DEPTH_COMPONENT
) {
886 else if (ctx
->Extensions
.ARB_depth_texture
&&
887 baseFormat
== GL_DEPTH_STENCIL
) {
891 att
->Complete
= GL_FALSE
;
892 att_incomplete("bad depth format");
897 assert(format
== GL_STENCIL
);
898 if (ctx
->Extensions
.ARB_depth_texture
&&
899 baseFormat
== GL_DEPTH_STENCIL
) {
901 } else if (ctx
->Extensions
.ARB_texture_stencil8
&&
902 baseFormat
== GL_STENCIL_INDEX
) {
905 /* no such thing as stencil-only textures */
906 att_incomplete("illegal stencil texture");
907 att
->Complete
= GL_FALSE
;
912 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
913 const GLenum baseFormat
= att
->Renderbuffer
->_BaseFormat
;
915 assert(att
->Renderbuffer
);
916 if (!att
->Renderbuffer
->InternalFormat
||
917 att
->Renderbuffer
->Width
< 1 ||
918 att
->Renderbuffer
->Height
< 1) {
919 att_incomplete("0x0 renderbuffer");
920 att
->Complete
= GL_FALSE
;
923 if (format
== GL_COLOR
) {
924 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
925 att_incomplete("bad renderbuffer color format");
926 att
->Complete
= GL_FALSE
;
930 else if (format
== GL_DEPTH
) {
931 if (baseFormat
== GL_DEPTH_COMPONENT
) {
934 else if (baseFormat
== GL_DEPTH_STENCIL
) {
938 att_incomplete("bad renderbuffer depth format");
939 att
->Complete
= GL_FALSE
;
944 assert(format
== GL_STENCIL
);
945 if (baseFormat
== GL_STENCIL_INDEX
||
946 baseFormat
== GL_DEPTH_STENCIL
) {
950 att
->Complete
= GL_FALSE
;
951 att_incomplete("bad renderbuffer stencil format");
957 assert(att
->Type
== GL_NONE
);
965 * Test if the given framebuffer object is complete and update its
966 * Status field with the results.
967 * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
968 * driver to make hardware-specific validation/completeness checks.
969 * Also update the framebuffer's Width and Height fields if the
970 * framebuffer is complete.
973 _mesa_test_framebuffer_completeness(struct gl_context
*ctx
,
974 struct gl_framebuffer
*fb
)
977 GLenum intFormat
= GL_NONE
; /* color buffers' internal format */
978 GLuint minWidth
= ~0, minHeight
= ~0, maxWidth
= 0, maxHeight
= 0;
979 GLint numColorSamples
= -1;
980 GLint numColorStorageSamples
= -1;
981 GLint numDepthSamples
= -1;
982 GLint fixedSampleLocations
= -1;
985 /* Covers max_layer_count, is_layered, and layer_tex_target */
986 bool layer_info_valid
= false;
987 GLuint max_layer_count
= 0, att_layer_count
;
988 bool is_layered
= false;
989 GLenum layer_tex_target
= 0;
990 bool has_depth_attachment
= false;
991 bool has_stencil_attachment
= false;
993 assert(_mesa_is_user_fbo(fb
));
995 /* we're changing framebuffer fields here */
996 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1001 fb
->_AllColorBuffersFixedPoint
= GL_TRUE
;
1002 fb
->_HasSNormOrFloatColorBuffer
= GL_FALSE
;
1003 fb
->_HasAttachments
= true;
1004 fb
->_IntegerBuffers
= 0;
1006 /* Start at -2 to more easily loop over all attachment points.
1008 * -1: stencil buffer
1011 for (i
= -2; i
< (GLint
) ctx
->Const
.MaxColorAttachments
; i
++) {
1012 struct gl_renderbuffer_attachment
*att
;
1014 mesa_format attFormat
;
1015 GLenum att_tex_target
= GL_NONE
;
1018 * XXX for ARB_fbo, only check color buffers that are named by
1019 * GL_READ_BUFFER and GL_DRAW_BUFFERi.
1022 /* check for attachment completeness
1025 att
= &fb
->Attachment
[BUFFER_DEPTH
];
1026 test_attachment_completeness(ctx
, GL_DEPTH
, att
);
1027 if (!att
->Complete
) {
1028 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1029 fbo_incomplete(ctx
, "depth attachment incomplete", -1);
1031 } else if (att
->Type
!= GL_NONE
) {
1032 has_depth_attachment
= true;
1036 att
= &fb
->Attachment
[BUFFER_STENCIL
];
1037 test_attachment_completeness(ctx
, GL_STENCIL
, att
);
1038 if (!att
->Complete
) {
1039 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1040 fbo_incomplete(ctx
, "stencil attachment incomplete", -1);
1042 } else if (att
->Type
!= GL_NONE
) {
1043 has_stencil_attachment
= true;
1047 att
= &fb
->Attachment
[BUFFER_COLOR0
+ i
];
1048 test_attachment_completeness(ctx
, GL_COLOR
, att
);
1049 if (!att
->Complete
) {
1050 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1051 fbo_incomplete(ctx
, "color attachment incomplete", i
);
1056 /* get width, height, format of the renderbuffer/texture
1058 unsigned attNumSamples
, attNumStorageSamples
;
1060 if (att
->Type
== GL_TEXTURE
) {
1061 const struct gl_texture_image
*texImg
= att
->Renderbuffer
->TexImage
;
1062 att_tex_target
= att
->Texture
->Target
;
1063 minWidth
= MIN2(minWidth
, texImg
->Width
);
1064 maxWidth
= MAX2(maxWidth
, texImg
->Width
);
1065 minHeight
= MIN2(minHeight
, texImg
->Height
);
1066 maxHeight
= MAX2(maxHeight
, texImg
->Height
);
1067 f
= texImg
->_BaseFormat
;
1068 attFormat
= texImg
->TexFormat
;
1071 if (!is_format_color_renderable(ctx
, attFormat
,
1072 texImg
->InternalFormat
) &&
1073 !is_legal_depth_format(ctx
, f
) &&
1074 f
!= GL_STENCIL_INDEX
) {
1075 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT
;
1076 fbo_incomplete(ctx
, "texture attachment incomplete", -1);
1080 if (fixedSampleLocations
< 0)
1081 fixedSampleLocations
= texImg
->FixedSampleLocations
;
1082 else if (fixedSampleLocations
!= texImg
->FixedSampleLocations
) {
1083 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1084 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1088 attNumSamples
= texImg
->NumSamples
;
1089 attNumStorageSamples
= texImg
->NumSamples
;
1091 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
1092 minWidth
= MIN2(minWidth
, att
->Renderbuffer
->Width
);
1093 maxWidth
= MAX2(minWidth
, att
->Renderbuffer
->Width
);
1094 minHeight
= MIN2(minHeight
, att
->Renderbuffer
->Height
);
1095 maxHeight
= MAX2(minHeight
, att
->Renderbuffer
->Height
);
1096 f
= att
->Renderbuffer
->InternalFormat
;
1097 attFormat
= att
->Renderbuffer
->Format
;
1100 /* RENDERBUFFER has fixedSampleLocations implicitly true */
1101 if (fixedSampleLocations
< 0)
1102 fixedSampleLocations
= GL_TRUE
;
1103 else if (fixedSampleLocations
!= GL_TRUE
) {
1104 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1105 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1109 attNumSamples
= att
->Renderbuffer
->NumSamples
;
1110 attNumStorageSamples
= att
->Renderbuffer
->NumStorageSamples
;
1113 assert(att
->Type
== GL_NONE
);
1118 /* Color buffers. */
1119 if (numColorSamples
< 0) {
1120 assert(numColorStorageSamples
< 0);
1121 numColorSamples
= attNumSamples
;
1122 numColorStorageSamples
= attNumStorageSamples
;
1123 } else if (numColorSamples
!= attNumSamples
||
1124 numColorStorageSamples
!= attNumStorageSamples
) {
1125 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1126 fbo_incomplete(ctx
, "inconsistent sample counts", -1);
1130 /* Depth/stencil buffers. */
1131 if (numDepthSamples
< 0) {
1132 numDepthSamples
= attNumSamples
;
1133 } else if (numDepthSamples
!= attNumSamples
) {
1134 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1135 fbo_incomplete(ctx
, "inconsistent sample counts", -1);
1140 /* Update flags describing color buffer datatypes */
1142 GLenum type
= _mesa_get_format_datatype(attFormat
);
1144 /* check if integer color */
1145 if (_mesa_is_format_integer_color(attFormat
))
1146 fb
->_IntegerBuffers
|= (1 << i
);
1148 fb
->_AllColorBuffersFixedPoint
=
1149 fb
->_AllColorBuffersFixedPoint
&&
1150 (type
== GL_UNSIGNED_NORMALIZED
|| type
== GL_SIGNED_NORMALIZED
);
1152 fb
->_HasSNormOrFloatColorBuffer
=
1153 fb
->_HasSNormOrFloatColorBuffer
||
1154 type
== GL_SIGNED_NORMALIZED
|| type
== GL_FLOAT
;
1157 /* Error-check width, height, format */
1158 if (numImages
== 1) {
1165 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
1166 /* check that width, height, format are same */
1167 if (minWidth
!= maxWidth
|| minHeight
!= maxHeight
) {
1168 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
;
1169 fbo_incomplete(ctx
, "width or height mismatch", -1);
1172 /* check that all color buffers are the same format */
1173 if (intFormat
!= GL_NONE
&& f
!= intFormat
) {
1174 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
1175 fbo_incomplete(ctx
, "format mismatch", -1);
1181 /* Check that the format is valid. (MESA_FORMAT_NONE means unsupported)
1183 if (att
->Type
== GL_RENDERBUFFER
&&
1184 att
->Renderbuffer
->Format
== MESA_FORMAT_NONE
) {
1185 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1186 fbo_incomplete(ctx
, "unsupported renderbuffer format", i
);
1190 /* Check that layered rendering is consistent. */
1192 if (att_tex_target
== GL_TEXTURE_CUBE_MAP
)
1193 att_layer_count
= 6;
1194 else if (att_tex_target
== GL_TEXTURE_1D_ARRAY
)
1195 att_layer_count
= att
->Renderbuffer
->Height
;
1197 att_layer_count
= att
->Renderbuffer
->Depth
;
1199 att_layer_count
= 0;
1201 if (!layer_info_valid
) {
1202 is_layered
= att
->Layered
;
1203 max_layer_count
= att_layer_count
;
1204 layer_tex_target
= att_tex_target
;
1205 layer_info_valid
= true;
1206 } else if (max_layer_count
> 0 && layer_tex_target
!= att_tex_target
) {
1207 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1208 fbo_incomplete(ctx
, "layered framebuffer has mismatched targets", i
);
1210 } else if (is_layered
!= att
->Layered
) {
1211 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1213 "framebuffer attachment layer mode is inconsistent",
1216 } else if (att_layer_count
> max_layer_count
) {
1217 max_layer_count
= att_layer_count
;
1221 * The extension GL_ARB_framebuffer_no_attachments places additional
1222 * requirement on each attachment. Those additional requirements are
1223 * tighter that those of previous versions of GL. In interest of better
1224 * compatibility, we will not enforce these restrictions. For the record
1225 * those additional restrictions are quoted below:
1227 * "The width and height of image are greater than zero and less than or
1228 * equal to the values of the implementation-dependent limits
1229 * MAX_FRAMEBUFFER_WIDTH and MAX_FRAMEBUFFER_HEIGHT, respectively."
1231 * "If <image> is a three-dimensional texture or a one- or two-dimensional
1232 * array texture and the attachment is layered, the depth or layer count
1233 * of the texture is less than or equal to the implementation-dependent
1234 * limit MAX_FRAMEBUFFER_LAYERS."
1236 * "If image has multiple samples, its sample count is less than or equal
1237 * to the value of the implementation-dependent limit
1238 * MAX_FRAMEBUFFER_SAMPLES."
1240 * The same requirements are also in place for GL 4.5,
1241 * Section 9.4.1 "Framebuffer Attachment Completeness", pg 310-311
1245 if (ctx
->Extensions
.AMD_framebuffer_multisample_advanced
) {
1246 /* See if non-matching sample counts are supported. */
1247 if (numColorSamples
>= 0 && numDepthSamples
>= 0) {
1250 assert(numColorStorageSamples
!= -1);
1252 numColorSamples
= MAX2(numColorSamples
, 1);
1253 numColorStorageSamples
= MAX2(numColorStorageSamples
, 1);
1254 numDepthSamples
= MAX2(numDepthSamples
, 1);
1256 if (numColorSamples
== 1 && numColorStorageSamples
== 1 &&
1257 numDepthSamples
== 1) {
1260 for (i
= 0; i
< ctx
->Const
.NumSupportedMultisampleModes
; i
++) {
1262 &ctx
->Const
.SupportedMultisampleModes
[i
].NumColorSamples
;
1264 if (counts
[0] == numColorSamples
&&
1265 counts
[1] == numColorStorageSamples
&&
1266 counts
[2] == numDepthSamples
) {
1274 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1275 fbo_incomplete(ctx
, "unsupported sample counts", -1);
1280 /* If the extension is unsupported, all sample counts must be equal. */
1281 if (numColorSamples
>= 0 &&
1282 (numColorSamples
!= numColorStorageSamples
||
1283 (numDepthSamples
>= 0 && numColorSamples
!= numDepthSamples
))) {
1284 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1285 fbo_incomplete(ctx
, "inconsistent sample counts", -1);
1290 fb
->MaxNumLayers
= max_layer_count
;
1292 if (numImages
== 0) {
1293 fb
->_HasAttachments
= false;
1295 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
1296 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1297 fbo_incomplete(ctx
, "no attachments", -1);
1301 if (fb
->DefaultGeometry
.Width
== 0 || fb
->DefaultGeometry
.Height
== 0) {
1302 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1303 fbo_incomplete(ctx
, "no attachments and default width or height is 0", -1);
1308 if (_mesa_is_desktop_gl(ctx
) && !ctx
->Extensions
.ARB_ES2_compatibility
) {
1309 /* Check that all DrawBuffers are present */
1310 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
1311 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
1312 const struct gl_renderbuffer_attachment
*att
1313 = get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
], NULL
);
1315 if (att
->Type
== GL_NONE
) {
1316 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
1317 fbo_incomplete(ctx
, "missing drawbuffer", j
);
1323 /* Check that the ReadBuffer is present */
1324 if (fb
->ColorReadBuffer
!= GL_NONE
) {
1325 const struct gl_renderbuffer_attachment
*att
1326 = get_attachment(ctx
, fb
, fb
->ColorReadBuffer
, NULL
);
1328 if (att
->Type
== GL_NONE
) {
1329 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
1330 fbo_incomplete(ctx
, "missing readbuffer", -1);
1336 /* The OpenGL ES3 spec, in chapter 9.4. FRAMEBUFFER COMPLETENESS, says:
1338 * "Depth and stencil attachments, if present, are the same image."
1340 * This restriction is not present in the OpenGL ES2 spec.
1342 if (_mesa_is_gles3(ctx
) &&
1343 has_stencil_attachment
&& has_depth_attachment
&&
1344 !_mesa_has_depthstencil_combined(fb
)) {
1345 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1346 fbo_incomplete(ctx
, "Depth and stencil attachments must be the same image", -1);
1350 /* Provisionally set status = COMPLETE ... */
1351 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
1353 /* ... but the driver may say the FB is incomplete.
1354 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
1357 if (ctx
->Driver
.ValidateFramebuffer
) {
1358 ctx
->Driver
.ValidateFramebuffer(ctx
, fb
);
1359 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1360 fbo_incomplete(ctx
, "driver marked FBO as incomplete", -1);
1366 * Note that if ARB_framebuffer_object is supported and the attached
1367 * renderbuffers/textures are different sizes, the framebuffer
1368 * width/height will be set to the smallest width/height.
1370 if (numImages
!= 0) {
1371 fb
->Width
= minWidth
;
1372 fb
->Height
= minHeight
;
1375 /* finally, update the visual info for the framebuffer */
1376 _mesa_update_framebuffer_visual(ctx
, fb
);
1380 GLboolean GLAPIENTRY
1381 _mesa_IsRenderbuffer(GLuint renderbuffer
)
1383 struct gl_renderbuffer
*rb
;
1385 GET_CURRENT_CONTEXT(ctx
);
1387 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1389 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1390 return rb
!= NULL
&& rb
!= &DummyRenderbuffer
;
1394 static struct gl_renderbuffer
*
1395 allocate_renderbuffer_locked(struct gl_context
*ctx
, GLuint renderbuffer
,
1398 struct gl_renderbuffer
*newRb
;
1400 /* create new renderbuffer object */
1401 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
1403 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
1406 assert(newRb
->AllocStorage
);
1407 _mesa_HashInsertLocked(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
1414 bind_renderbuffer(GLenum target
, GLuint renderbuffer
)
1416 struct gl_renderbuffer
*newRb
;
1417 GET_CURRENT_CONTEXT(ctx
);
1419 if (target
!= GL_RENDERBUFFER_EXT
) {
1420 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindRenderbufferEXT(target)");
1424 /* No need to flush here since the render buffer binding has no
1425 * effect on rendering state.
1429 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1430 if (newRb
== &DummyRenderbuffer
) {
1431 /* ID was reserved, but no real renderbuffer object made yet */
1434 else if (!newRb
&& ctx
->API
== API_OPENGL_CORE
) {
1435 /* All RB IDs must be Gen'd */
1436 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1437 "glBindRenderbuffer(non-gen name)");
1442 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
1443 newRb
= allocate_renderbuffer_locked(ctx
, renderbuffer
,
1444 "glBindRenderbufferEXT");
1445 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
1452 assert(newRb
!= &DummyRenderbuffer
);
1454 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
1458 _mesa_BindRenderbuffer(GLenum target
, GLuint renderbuffer
)
1460 /* OpenGL ES glBindRenderbuffer and glBindRenderbufferOES use this same
1461 * entry point, but they allow the use of user-generated names.
1463 bind_renderbuffer(target
, renderbuffer
);
1467 _mesa_BindRenderbufferEXT(GLenum target
, GLuint renderbuffer
)
1469 bind_renderbuffer(target
, renderbuffer
);
1473 * ARB_framebuffer_no_attachment and ARB_sample_locations - Application passes
1474 * requested param's here. NOTE: NumSamples requested need not be _NumSamples
1475 * which is what the hw supports.
1478 framebuffer_parameteri(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1479 GLenum pname
, GLint param
, const char *func
)
1481 bool cannot_be_winsys_fbo
= false;
1484 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1485 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1486 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1487 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1488 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1489 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
)
1490 goto invalid_pname_enum
;
1491 cannot_be_winsys_fbo
= true;
1493 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1494 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1495 if (!ctx
->Extensions
.ARB_sample_locations
)
1496 goto invalid_pname_enum
;
1498 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1499 if (!ctx
->Extensions
.MESA_framebuffer_flip_y
)
1500 goto invalid_pname_enum
;
1501 cannot_be_winsys_fbo
= true;
1504 goto invalid_pname_enum
;
1507 if (cannot_be_winsys_fbo
&& _mesa_is_winsys_fbo(fb
)) {
1508 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1509 "%s(invalid pname=0x%x for default framebuffer)", func
, pname
);
1514 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1515 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferWidth
)
1516 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1518 fb
->DefaultGeometry
.Width
= param
;
1520 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1521 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferHeight
)
1522 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1524 fb
->DefaultGeometry
.Height
= param
;
1526 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1528 * According to the OpenGL ES 3.1 specification section 9.2.1, the
1529 * GL_FRAMEBUFFER_DEFAULT_LAYERS parameter name is not supported.
1531 if (_mesa_is_gles31(ctx
) && !ctx
->Extensions
.OES_geometry_shader
) {
1532 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1535 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferLayers
)
1536 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1538 fb
->DefaultGeometry
.Layers
= param
;
1540 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1541 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferSamples
)
1542 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1544 fb
->DefaultGeometry
.NumSamples
= param
;
1546 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1547 fb
->DefaultGeometry
.FixedSampleLocations
= param
;
1549 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1550 fb
->ProgrammableSampleLocations
= !!param
;
1552 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1553 fb
->SampleLocationPixelGrid
= !!param
;
1555 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1561 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1562 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1563 if (fb
== ctx
->DrawBuffer
)
1564 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleLocations
;
1567 invalidate_framebuffer(fb
);
1568 ctx
->NewState
|= _NEW_BUFFERS
;
1575 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1579 _mesa_FramebufferParameteri(GLenum target
, GLenum pname
, GLint param
)
1581 GET_CURRENT_CONTEXT(ctx
);
1582 struct gl_framebuffer
*fb
;
1584 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
1585 !ctx
->Extensions
.ARB_sample_locations
) {
1586 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1587 "glFramebufferParameteriv not supported "
1588 "(neither ARB_framebuffer_no_attachments nor ARB_sample_locations"
1593 fb
= get_framebuffer_target(ctx
, target
);
1595 _mesa_error(ctx
, GL_INVALID_ENUM
,
1596 "glFramebufferParameteri(target=0x%x)", target
);
1600 framebuffer_parameteri(ctx
, fb
, pname
, param
, "glFramebufferParameteri");
1604 validate_get_framebuffer_parameteriv_pname(struct gl_context
*ctx
,
1605 struct gl_framebuffer
*fb
,
1606 GLuint pname
, const char *func
)
1608 bool cannot_be_winsys_fbo
= true;
1611 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1613 * According to the OpenGL ES 3.1 specification section 9.2.3, the
1614 * GL_FRAMEBUFFER_LAYERS parameter name is not supported.
1616 if (_mesa_is_gles31(ctx
) && !ctx
->Extensions
.OES_geometry_shader
) {
1617 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1621 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1622 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1623 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1624 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1626 case GL_DOUBLEBUFFER
:
1627 case GL_IMPLEMENTATION_COLOR_READ_FORMAT
:
1628 case GL_IMPLEMENTATION_COLOR_READ_TYPE
:
1630 case GL_SAMPLE_BUFFERS
:
1632 /* From OpenGL 4.5 spec, section 9.2.3 "Framebuffer Object Queries:
1634 * "An INVALID_OPERATION error is generated by GetFramebufferParameteriv
1635 * if the default framebuffer is bound to target and pname is not one
1636 * of the accepted values from table 23.73, other than
1639 * For OpenGL ES, using default framebuffer raises INVALID_OPERATION
1642 cannot_be_winsys_fbo
= !_mesa_is_desktop_gl(ctx
);
1644 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1645 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1646 if (!ctx
->Extensions
.ARB_sample_locations
)
1647 goto invalid_pname_enum
;
1648 cannot_be_winsys_fbo
= false;
1650 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1651 if (!ctx
->Extensions
.MESA_framebuffer_flip_y
) {
1652 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1657 goto invalid_pname_enum
;
1660 if (cannot_be_winsys_fbo
&& _mesa_is_winsys_fbo(fb
)) {
1661 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1662 "%s(invalid pname=0x%x for default framebuffer)", func
, pname
);
1669 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1674 get_framebuffer_parameteriv(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1675 GLenum pname
, GLint
*params
, const char *func
)
1677 if (!validate_get_framebuffer_parameteriv_pname(ctx
, fb
, pname
, func
))
1681 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1682 *params
= fb
->DefaultGeometry
.Width
;
1684 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1685 *params
= fb
->DefaultGeometry
.Height
;
1687 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1688 *params
= fb
->DefaultGeometry
.Layers
;
1690 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1691 *params
= fb
->DefaultGeometry
.NumSamples
;
1693 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1694 *params
= fb
->DefaultGeometry
.FixedSampleLocations
;
1696 case GL_DOUBLEBUFFER
:
1697 *params
= fb
->Visual
.doubleBufferMode
;
1699 case GL_IMPLEMENTATION_COLOR_READ_FORMAT
:
1700 *params
= _mesa_get_color_read_format(ctx
, fb
, func
);
1702 case GL_IMPLEMENTATION_COLOR_READ_TYPE
:
1703 *params
= _mesa_get_color_read_type(ctx
, fb
, func
);
1706 *params
= _mesa_geometric_samples(fb
);
1708 case GL_SAMPLE_BUFFERS
:
1709 *params
= _mesa_geometric_samples(fb
) > 0;
1712 *params
= fb
->Visual
.stereoMode
;
1714 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1715 *params
= fb
->ProgrammableSampleLocations
;
1717 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1718 *params
= fb
->SampleLocationPixelGrid
;
1720 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1721 *params
= fb
->FlipY
;
1727 _mesa_GetFramebufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
1729 GET_CURRENT_CONTEXT(ctx
);
1730 struct gl_framebuffer
*fb
;
1732 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
1733 !ctx
->Extensions
.ARB_sample_locations
) {
1734 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1735 "glGetFramebufferParameteriv not supported "
1736 "(neither ARB_framebuffer_no_attachments nor ARB_sample_locations"
1741 fb
= get_framebuffer_target(ctx
, target
);
1743 _mesa_error(ctx
, GL_INVALID_ENUM
,
1744 "glGetFramebufferParameteriv(target=0x%x)", target
);
1748 get_framebuffer_parameteriv(ctx
, fb
, pname
, params
,
1749 "glGetFramebufferParameteriv");
1754 * Remove the specified renderbuffer or texture from any attachment point in
1758 * \c true if the renderbuffer was detached from an attachment point. \c
1762 _mesa_detach_renderbuffer(struct gl_context
*ctx
,
1763 struct gl_framebuffer
*fb
,
1767 bool progress
= false;
1769 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1770 if (fb
->Attachment
[i
].Texture
== att
1771 || fb
->Attachment
[i
].Renderbuffer
== att
) {
1772 remove_attachment(ctx
, &fb
->Attachment
[i
]);
1777 /* Section 4.4.4 (Framebuffer Completeness), subsection "Whole Framebuffer
1778 * Completeness," of the OpenGL 3.1 spec says:
1780 * "Performing any of the following actions may change whether the
1781 * framebuffer is considered complete or incomplete:
1785 * - Deleting, with DeleteTextures or DeleteRenderbuffers, an object
1786 * containing an image that is attached to a framebuffer object
1787 * that is bound to the framebuffer."
1790 invalidate_framebuffer(fb
);
1797 _mesa_DeleteRenderbuffers(GLsizei n
, const GLuint
*renderbuffers
)
1800 GET_CURRENT_CONTEXT(ctx
);
1803 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteRenderbuffers(n < 0)");
1807 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1809 for (i
= 0; i
< n
; i
++) {
1810 if (renderbuffers
[i
] > 0) {
1811 struct gl_renderbuffer
*rb
;
1812 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
1814 /* check if deleting currently bound renderbuffer object */
1815 if (rb
== ctx
->CurrentRenderbuffer
) {
1817 assert(rb
->RefCount
>= 2);
1818 _mesa_BindRenderbuffer(GL_RENDERBUFFER_EXT
, 0);
1821 /* Section 4.4.2 (Attaching Images to Framebuffer Objects),
1822 * subsection "Attaching Renderbuffer Images to a Framebuffer,"
1823 * of the OpenGL 3.1 spec says:
1825 * "If a renderbuffer object is deleted while its image is
1826 * attached to one or more attachment points in the currently
1827 * bound framebuffer, then it is as if FramebufferRenderbuffer
1828 * had been called, with a renderbuffer of 0, for each
1829 * attachment point to which this image was attached in the
1830 * currently bound framebuffer. In other words, this
1831 * renderbuffer image is first detached from all attachment
1832 * points in the currently bound framebuffer. Note that the
1833 * renderbuffer image is specifically not detached from any
1834 * non-bound framebuffers. Detaching the image from any
1835 * non-bound framebuffers is the responsibility of the
1838 if (_mesa_is_user_fbo(ctx
->DrawBuffer
)) {
1839 _mesa_detach_renderbuffer(ctx
, ctx
->DrawBuffer
, rb
);
1841 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)
1842 && ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
1843 _mesa_detach_renderbuffer(ctx
, ctx
->ReadBuffer
, rb
);
1846 /* Remove from hash table immediately, to free the ID.
1847 * But the object will not be freed until it's no longer
1848 * referenced anywhere else.
1850 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
1852 if (rb
!= &DummyRenderbuffer
) {
1853 /* no longer referenced by hash table */
1854 _mesa_reference_renderbuffer(&rb
, NULL
);
1862 create_render_buffers(struct gl_context
*ctx
, GLsizei n
, GLuint
*renderbuffers
,
1865 const char *func
= dsa
? "glCreateRenderbuffers" : "glGenRenderbuffers";
1872 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
1874 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
1876 for (i
= 0; i
< n
; i
++) {
1877 GLuint name
= first
+ i
;
1878 renderbuffers
[i
] = name
;
1881 allocate_renderbuffer_locked(ctx
, name
, func
);
1883 /* insert a dummy renderbuffer into the hash table */
1884 _mesa_HashInsertLocked(ctx
->Shared
->RenderBuffers
, name
,
1885 &DummyRenderbuffer
);
1889 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
1894 create_render_buffers_err(struct gl_context
*ctx
, GLsizei n
,
1895 GLuint
*renderbuffers
, bool dsa
)
1897 const char *func
= dsa
? "glCreateRenderbuffers" : "glGenRenderbuffers";
1900 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n<0)", func
);
1904 create_render_buffers(ctx
, n
, renderbuffers
, dsa
);
1909 _mesa_GenRenderbuffers_no_error(GLsizei n
, GLuint
*renderbuffers
)
1911 GET_CURRENT_CONTEXT(ctx
);
1912 create_render_buffers(ctx
, n
, renderbuffers
, false);
1917 _mesa_GenRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1919 GET_CURRENT_CONTEXT(ctx
);
1920 create_render_buffers_err(ctx
, n
, renderbuffers
, false);
1925 _mesa_CreateRenderbuffers_no_error(GLsizei n
, GLuint
*renderbuffers
)
1927 GET_CURRENT_CONTEXT(ctx
);
1928 create_render_buffers(ctx
, n
, renderbuffers
, true);
1933 _mesa_CreateRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1935 GET_CURRENT_CONTEXT(ctx
);
1936 create_render_buffers_err(ctx
, n
, renderbuffers
, true);
1941 * Given an internal format token for a render buffer, return the
1942 * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
1943 * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,
1944 * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).
1946 * This is similar to _mesa_base_tex_format() but the set of valid
1947 * internal formats is different.
1949 * Note that even if a format is determined to be legal here, validation
1950 * of the FBO may fail if the format is not supported by the driver/GPU.
1952 * \param internalFormat as passed to glRenderbufferStorage()
1953 * \return the base internal format, or 0 if internalFormat is illegal
1956 _mesa_base_fbo_format(const struct gl_context
*ctx
, GLenum internalFormat
)
1959 * Notes: some formats such as alpha, luminance, etc. were added
1960 * with GL_ARB_framebuffer_object.
1962 switch (internalFormat
) {
1968 return (ctx
->API
== API_OPENGL_COMPAT
&&
1969 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_ALPHA
: 0;
1973 case GL_LUMINANCE12
:
1974 case GL_LUMINANCE16
:
1975 return (ctx
->API
== API_OPENGL_COMPAT
&&
1976 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE
: 0;
1977 case GL_LUMINANCE_ALPHA
:
1978 case GL_LUMINANCE4_ALPHA4
:
1979 case GL_LUMINANCE6_ALPHA2
:
1980 case GL_LUMINANCE8_ALPHA8
:
1981 case GL_LUMINANCE12_ALPHA4
:
1982 case GL_LUMINANCE12_ALPHA12
:
1983 case GL_LUMINANCE16_ALPHA16
:
1984 return (ctx
->API
== API_OPENGL_COMPAT
&&
1985 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE_ALPHA
: 0;
1989 case GL_INTENSITY12
:
1990 case GL_INTENSITY16
:
1991 return (ctx
->API
== API_OPENGL_COMPAT
&&
1992 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_INTENSITY
: 0;
2002 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
2004 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
2012 return _mesa_is_desktop_gl(ctx
) ? GL_RGBA
: 0;
2014 return _mesa_is_desktop_gl(ctx
) || _mesa_has_EXT_texture_norm16(ctx
)
2017 case GL_SRGB8_ALPHA8_EXT
:
2018 return _mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
2019 case GL_STENCIL_INDEX
:
2020 case GL_STENCIL_INDEX1_EXT
:
2021 case GL_STENCIL_INDEX4_EXT
:
2022 case GL_STENCIL_INDEX16_EXT
:
2023 /* There are extensions for GL_STENCIL_INDEX1 and GL_STENCIL_INDEX4 in
2024 * OpenGL ES, but Mesa does not currently support them.
2026 return _mesa_is_desktop_gl(ctx
) ? GL_STENCIL_INDEX
: 0;
2027 case GL_STENCIL_INDEX8_EXT
:
2028 return GL_STENCIL_INDEX
;
2029 case GL_DEPTH_COMPONENT
:
2030 case GL_DEPTH_COMPONENT32
:
2031 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_COMPONENT
: 0;
2032 case GL_DEPTH_COMPONENT16
:
2033 case GL_DEPTH_COMPONENT24
:
2034 return GL_DEPTH_COMPONENT
;
2035 case GL_DEPTH_STENCIL
:
2036 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_STENCIL
: 0;
2037 case GL_DEPTH24_STENCIL8
:
2038 return GL_DEPTH_STENCIL
;
2039 case GL_DEPTH_COMPONENT32F
:
2040 return ctx
->Version
>= 30
2041 || (ctx
->API
== API_OPENGL_COMPAT
&&
2042 ctx
->Extensions
.ARB_depth_buffer_float
)
2043 ? GL_DEPTH_COMPONENT
: 0;
2044 case GL_DEPTH32F_STENCIL8
:
2045 return ctx
->Version
>= 30
2046 || (ctx
->API
== API_OPENGL_COMPAT
&&
2047 ctx
->Extensions
.ARB_depth_buffer_float
)
2048 ? GL_DEPTH_STENCIL
: 0;
2050 return _mesa_has_ARB_texture_rg(ctx
) ? GL_RED
: 0;
2052 return _mesa_has_ARB_texture_rg(ctx
) || _mesa_has_EXT_texture_norm16(ctx
)
2055 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
2058 return _mesa_has_ARB_texture_rg(ctx
) ? GL_RG
: 0;
2060 return _mesa_has_ARB_texture_rg(ctx
) || _mesa_has_EXT_texture_norm16(ctx
)
2063 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
2065 /* signed normalized texture formats */
2067 return _mesa_has_EXT_texture_snorm(ctx
) || _mesa_has_EXT_render_snorm(ctx
)
2070 return _mesa_has_EXT_texture_snorm(ctx
) ? GL_RED
: 0;
2072 return _mesa_has_EXT_texture_snorm(ctx
) ||
2073 (_mesa_has_EXT_render_snorm(ctx
) &&
2074 _mesa_has_EXT_texture_norm16(ctx
))
2077 return _mesa_has_EXT_texture_snorm(ctx
) || _mesa_has_EXT_render_snorm(ctx
)
2080 return _mesa_has_EXT_texture_snorm(ctx
) ? GL_RG
: 0;
2082 return _mesa_has_EXT_texture_snorm(ctx
) ||
2083 (_mesa_has_EXT_render_snorm(ctx
) &&
2084 _mesa_has_EXT_texture_norm16(ctx
))
2088 case GL_RGB16_SNORM
:
2089 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2091 case GL_RGBA8_SNORM
:
2092 return _mesa_has_EXT_texture_snorm(ctx
) || _mesa_has_EXT_render_snorm(ctx
)
2095 return _mesa_has_EXT_texture_snorm(ctx
) ? GL_RGBA
: 0;
2096 case GL_RGBA16_SNORM
:
2097 return _mesa_has_EXT_texture_snorm(ctx
) ||
2098 (_mesa_has_EXT_render_snorm(ctx
) &&
2099 _mesa_has_EXT_texture_norm16(ctx
))
2101 case GL_ALPHA_SNORM
:
2102 case GL_ALPHA8_SNORM
:
2103 case GL_ALPHA16_SNORM
:
2104 return ctx
->API
== API_OPENGL_COMPAT
&&
2105 ctx
->Extensions
.EXT_texture_snorm
&&
2106 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
2107 case GL_LUMINANCE_SNORM
:
2108 case GL_LUMINANCE8_SNORM
:
2109 case GL_LUMINANCE16_SNORM
:
2110 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2112 case GL_LUMINANCE_ALPHA_SNORM
:
2113 case GL_LUMINANCE8_ALPHA8_SNORM
:
2114 case GL_LUMINANCE16_ALPHA16_SNORM
:
2115 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2116 ? GL_LUMINANCE_ALPHA
: 0;
2117 case GL_INTENSITY_SNORM
:
2118 case GL_INTENSITY8_SNORM
:
2119 case GL_INTENSITY16_SNORM
:
2120 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2125 return ((_mesa_is_desktop_gl(ctx
) &&
2126 ctx
->Extensions
.ARB_texture_rg
&&
2127 ctx
->Extensions
.ARB_texture_float
) ||
2128 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2132 return ((_mesa_is_desktop_gl(ctx
) &&
2133 ctx
->Extensions
.ARB_texture_rg
&&
2134 ctx
->Extensions
.ARB_texture_float
) ||
2135 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2139 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_float
)
2143 return ((_mesa_is_desktop_gl(ctx
) &&
2144 ctx
->Extensions
.ARB_texture_float
) ||
2145 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2148 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_shared_exponent
)
2150 case GL_ALPHA16F_ARB
:
2151 case GL_ALPHA32F_ARB
:
2152 return ctx
->API
== API_OPENGL_COMPAT
&&
2153 ctx
->Extensions
.ARB_texture_float
&&
2154 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
2155 case GL_LUMINANCE16F_ARB
:
2156 case GL_LUMINANCE32F_ARB
:
2157 return ctx
->API
== API_OPENGL_COMPAT
&&
2158 ctx
->Extensions
.ARB_texture_float
&&
2159 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
2160 case GL_LUMINANCE_ALPHA16F_ARB
:
2161 case GL_LUMINANCE_ALPHA32F_ARB
:
2162 return ctx
->API
== API_OPENGL_COMPAT
&&
2163 ctx
->Extensions
.ARB_texture_float
&&
2164 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
2165 case GL_INTENSITY16F_ARB
:
2166 case GL_INTENSITY32F_ARB
:
2167 return ctx
->API
== API_OPENGL_COMPAT
&&
2168 ctx
->Extensions
.ARB_texture_float
&&
2169 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
2170 case GL_R11F_G11F_B10F
:
2171 return ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_packed_float
) ||
2172 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2175 case GL_RGBA8UI_EXT
:
2176 case GL_RGBA16UI_EXT
:
2177 case GL_RGBA32UI_EXT
:
2179 case GL_RGBA16I_EXT
:
2180 case GL_RGBA32I_EXT
:
2181 return ctx
->Version
>= 30
2182 || (_mesa_is_desktop_gl(ctx
) &&
2183 ctx
->Extensions
.EXT_texture_integer
) ? GL_RGBA
: 0;
2186 case GL_RGB16UI_EXT
:
2187 case GL_RGB32UI_EXT
:
2191 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_integer
2199 return ctx
->Version
>= 30
2200 || (_mesa_is_desktop_gl(ctx
) &&
2201 ctx
->Extensions
.ARB_texture_rg
&&
2202 ctx
->Extensions
.EXT_texture_integer
) ? GL_RED
: 0;
2210 return ctx
->Version
>= 30
2211 || (_mesa_is_desktop_gl(ctx
) &&
2212 ctx
->Extensions
.ARB_texture_rg
&&
2213 ctx
->Extensions
.EXT_texture_integer
) ? GL_RG
: 0;
2215 case GL_INTENSITY8I_EXT
:
2216 case GL_INTENSITY8UI_EXT
:
2217 case GL_INTENSITY16I_EXT
:
2218 case GL_INTENSITY16UI_EXT
:
2219 case GL_INTENSITY32I_EXT
:
2220 case GL_INTENSITY32UI_EXT
:
2221 return ctx
->API
== API_OPENGL_COMPAT
&&
2222 ctx
->Extensions
.EXT_texture_integer
&&
2223 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
2225 case GL_LUMINANCE8I_EXT
:
2226 case GL_LUMINANCE8UI_EXT
:
2227 case GL_LUMINANCE16I_EXT
:
2228 case GL_LUMINANCE16UI_EXT
:
2229 case GL_LUMINANCE32I_EXT
:
2230 case GL_LUMINANCE32UI_EXT
:
2231 return ctx
->API
== API_OPENGL_COMPAT
&&
2232 ctx
->Extensions
.EXT_texture_integer
&&
2233 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
2235 case GL_LUMINANCE_ALPHA8I_EXT
:
2236 case GL_LUMINANCE_ALPHA8UI_EXT
:
2237 case GL_LUMINANCE_ALPHA16I_EXT
:
2238 case GL_LUMINANCE_ALPHA16UI_EXT
:
2239 case GL_LUMINANCE_ALPHA32I_EXT
:
2240 case GL_LUMINANCE_ALPHA32UI_EXT
:
2241 return ctx
->API
== API_OPENGL_COMPAT
&&
2242 ctx
->Extensions
.EXT_texture_integer
&&
2243 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
2245 case GL_ALPHA8I_EXT
:
2246 case GL_ALPHA8UI_EXT
:
2247 case GL_ALPHA16I_EXT
:
2248 case GL_ALPHA16UI_EXT
:
2249 case GL_ALPHA32I_EXT
:
2250 case GL_ALPHA32UI_EXT
:
2251 return ctx
->API
== API_OPENGL_COMPAT
&&
2252 ctx
->Extensions
.EXT_texture_integer
&&
2253 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
2256 return (_mesa_is_desktop_gl(ctx
) &&
2257 ctx
->Extensions
.ARB_texture_rgb10_a2ui
)
2258 || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
2261 return _mesa_is_gles(ctx
) || ctx
->Extensions
.ARB_ES2_compatibility
2270 * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk().
2273 invalidate_rb(GLuint key
, void *data
, void *userData
)
2275 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2276 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) userData
;
2278 /* If this is a user-created FBO */
2279 if (_mesa_is_user_fbo(fb
)) {
2281 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2282 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2283 if (att
->Type
== GL_RENDERBUFFER
&&
2284 att
->Renderbuffer
== rb
) {
2285 /* Mark fb status as indeterminate to force re-validation */
2294 /** sentinal value, see below */
2295 #define NO_SAMPLES 1000
2298 _mesa_renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2299 GLenum internalFormat
, GLsizei width
,
2300 GLsizei height
, GLsizei samples
,
2301 GLsizei storageSamples
)
2303 const GLenum baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
2305 assert(baseFormat
!= 0);
2306 assert(width
>= 0 && width
<= (GLsizei
) ctx
->Const
.MaxRenderbufferSize
);
2307 assert(height
>= 0 && height
<= (GLsizei
) ctx
->Const
.MaxRenderbufferSize
);
2308 assert(samples
!= NO_SAMPLES
);
2310 assert(samples
> 0);
2311 assert(_mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
2312 internalFormat
, samples
,
2313 storageSamples
) == GL_NO_ERROR
);
2316 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2318 if (rb
->InternalFormat
== internalFormat
&&
2319 rb
->Width
== (GLuint
) width
&&
2320 rb
->Height
== (GLuint
) height
&&
2321 rb
->NumSamples
== samples
&&
2322 rb
->NumStorageSamples
== storageSamples
) {
2323 /* no change in allocation needed */
2327 /* These MUST get set by the AllocStorage func */
2328 rb
->Format
= MESA_FORMAT_NONE
;
2329 rb
->NumSamples
= samples
;
2330 rb
->NumStorageSamples
= storageSamples
;
2332 /* Now allocate the storage */
2333 assert(rb
->AllocStorage
);
2334 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
2335 /* No error - check/set fields now */
2336 /* If rb->Format == MESA_FORMAT_NONE, the format is unsupported. */
2337 assert(rb
->Width
== (GLuint
) width
);
2338 assert(rb
->Height
== (GLuint
) height
);
2339 rb
->InternalFormat
= internalFormat
;
2340 rb
->_BaseFormat
= baseFormat
;
2341 assert(rb
->_BaseFormat
!= 0);
2344 /* Probably ran out of memory - clear the fields */
2347 rb
->Format
= MESA_FORMAT_NONE
;
2348 rb
->InternalFormat
= GL_NONE
;
2349 rb
->_BaseFormat
= GL_NONE
;
2351 rb
->NumStorageSamples
= 0;
2354 /* Invalidate the framebuffers the renderbuffer is attached in. */
2355 if (rb
->AttachedAnytime
) {
2356 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, invalidate_rb
, rb
);
2361 * Helper function used by renderbuffer_storage_direct() and
2362 * renderbuffer_storage_target().
2363 * samples will be NO_SAMPLES if called by a non-multisample function.
2366 renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2367 GLenum internalFormat
, GLsizei width
,
2368 GLsizei height
, GLsizei samples
, GLsizei storageSamples
,
2372 GLenum sample_count_error
;
2374 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
2375 if (baseFormat
== 0) {
2376 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalFormat=%s)",
2377 func
, _mesa_enum_to_string(internalFormat
));
2381 if (width
< 0 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2382 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid width %d)", func
,
2387 if (height
< 0 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2388 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid height %d)", func
,
2393 if (samples
== NO_SAMPLES
) {
2394 /* NumSamples == 0 indicates non-multisampling */
2399 /* check the sample count;
2400 * note: driver may choose to use more samples than what's requested
2402 sample_count_error
= _mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
2403 internalFormat
, samples
, storageSamples
);
2405 /* Section 2.5 (GL Errors) of OpenGL 3.0 specification, page 16:
2407 * "If a negative number is provided where an argument of type sizei or
2408 * sizeiptr is specified, the error INVALID VALUE is generated."
2410 if (samples
< 0 || storageSamples
< 0) {
2411 sample_count_error
= GL_INVALID_VALUE
;
2414 if (sample_count_error
!= GL_NO_ERROR
) {
2415 _mesa_error(ctx
, sample_count_error
,
2416 "%s(samples=%d, storageSamples=%d)", func
, samples
,
2422 _mesa_renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
,
2427 * Helper function used by _mesa_NamedRenderbufferStorage*().
2428 * samples will be NO_SAMPLES if called by a non-multisample function.
2431 renderbuffer_storage_named(GLuint renderbuffer
, GLenum internalFormat
,
2432 GLsizei width
, GLsizei height
, GLsizei samples
,
2433 GLsizei storageSamples
, const char *func
)
2435 GET_CURRENT_CONTEXT(ctx
);
2437 if (MESA_VERBOSE
& VERBOSE_API
) {
2438 if (samples
== NO_SAMPLES
)
2439 _mesa_debug(ctx
, "%s(%u, %s, %d, %d)\n",
2441 _mesa_enum_to_string(internalFormat
),
2444 _mesa_debug(ctx
, "%s(%u, %s, %d, %d, %d)\n",
2446 _mesa_enum_to_string(internalFormat
),
2447 width
, height
, samples
);
2450 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2451 if (!rb
|| rb
== &DummyRenderbuffer
) {
2452 /* ID was reserved, but no real renderbuffer object made yet */
2453 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid renderbuffer %u)",
2454 func
, renderbuffer
);
2458 renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
,
2459 storageSamples
, func
);
2463 * Helper function used by _mesa_RenderbufferStorage() and
2464 * _mesa_RenderbufferStorageMultisample().
2465 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorage().
2468 renderbuffer_storage_target(GLenum target
, GLenum internalFormat
,
2469 GLsizei width
, GLsizei height
, GLsizei samples
,
2470 GLsizei storageSamples
, const char *func
)
2472 GET_CURRENT_CONTEXT(ctx
);
2474 if (MESA_VERBOSE
& VERBOSE_API
) {
2475 if (samples
== NO_SAMPLES
)
2476 _mesa_debug(ctx
, "%s(%s, %s, %d, %d)\n",
2478 _mesa_enum_to_string(target
),
2479 _mesa_enum_to_string(internalFormat
),
2482 _mesa_debug(ctx
, "%s(%s, %s, %d, %d, %d)\n",
2484 _mesa_enum_to_string(target
),
2485 _mesa_enum_to_string(internalFormat
),
2486 width
, height
, samples
);
2489 if (target
!= GL_RENDERBUFFER_EXT
) {
2490 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
2494 if (!ctx
->CurrentRenderbuffer
) {
2495 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(no renderbuffer bound)",
2500 renderbuffer_storage(ctx
, ctx
->CurrentRenderbuffer
, internalFormat
, width
,
2501 height
, samples
, storageSamples
, func
);
2506 _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target
, GLeglImageOES image
)
2508 struct gl_renderbuffer
*rb
;
2509 GET_CURRENT_CONTEXT(ctx
);
2511 if (!ctx
->Extensions
.OES_EGL_image
) {
2512 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2513 "glEGLImageTargetRenderbufferStorageOES(unsupported)");
2517 if (target
!= GL_RENDERBUFFER
) {
2518 _mesa_error(ctx
, GL_INVALID_ENUM
,
2519 "EGLImageTargetRenderbufferStorageOES");
2523 rb
= ctx
->CurrentRenderbuffer
;
2525 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2526 "EGLImageTargetRenderbufferStorageOES");
2530 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2532 ctx
->Driver
.EGLImageTargetRenderbufferStorage(ctx
, rb
, image
);
2537 * Helper function for _mesa_GetRenderbufferParameteriv() and
2538 * _mesa_GetFramebufferAttachmentParameteriv()
2539 * We have to be careful to respect the base format. For example, if a
2540 * renderbuffer/texture was created with internalFormat=GL_RGB but the
2541 * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
2542 * we need to return zero.
2545 get_component_bits(GLenum pname
, GLenum baseFormat
, mesa_format format
)
2547 if (_mesa_base_format_has_channel(baseFormat
, pname
))
2548 return _mesa_get_format_bits(format
, pname
);
2556 _mesa_RenderbufferStorage(GLenum target
, GLenum internalFormat
,
2557 GLsizei width
, GLsizei height
)
2559 /* GL_ARB_fbo says calling this function is equivalent to calling
2560 * glRenderbufferStorageMultisample() with samples=0. We pass in
2561 * a token value here just for error reporting purposes.
2563 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2564 NO_SAMPLES
, 0, "glRenderbufferStorage");
2569 _mesa_RenderbufferStorageMultisample(GLenum target
, GLsizei samples
,
2570 GLenum internalFormat
,
2571 GLsizei width
, GLsizei height
)
2573 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2575 "glRenderbufferStorageMultisample");
2580 _mesa_RenderbufferStorageMultisampleAdvancedAMD(
2581 GLenum target
, GLsizei samples
, GLsizei storageSamples
,
2582 GLenum internalFormat
, GLsizei width
, GLsizei height
)
2584 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2585 samples
, storageSamples
,
2586 "glRenderbufferStorageMultisampleAdvancedAMD");
2591 * OpenGL ES version of glRenderBufferStorage.
2594 _es_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
2595 GLsizei width
, GLsizei height
)
2597 switch (internalFormat
) {
2599 /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
2600 /* choose a closest format */
2601 internalFormat
= GL_RGB5
;
2607 renderbuffer_storage_target(target
, internalFormat
, width
, height
, 0, 0,
2608 "glRenderbufferStorageEXT");
2612 _mesa_NamedRenderbufferStorage(GLuint renderbuffer
, GLenum internalformat
,
2613 GLsizei width
, GLsizei height
)
2615 /* GL_ARB_fbo says calling this function is equivalent to calling
2616 * glRenderbufferStorageMultisample() with samples=0. We pass in
2617 * a token value here just for error reporting purposes.
2619 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2620 NO_SAMPLES
, 0, "glNamedRenderbufferStorage");
2624 _mesa_NamedRenderbufferStorageMultisample(GLuint renderbuffer
, GLsizei samples
,
2625 GLenum internalformat
,
2626 GLsizei width
, GLsizei height
)
2628 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2630 "glNamedRenderbufferStorageMultisample");
2635 _mesa_NamedRenderbufferStorageMultisampleAdvancedAMD(
2636 GLuint renderbuffer
, GLsizei samples
, GLsizei storageSamples
,
2637 GLenum internalformat
, GLsizei width
, GLsizei height
)
2639 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2640 samples
, storageSamples
,
2641 "glNamedRenderbufferStorageMultisampleAdvancedAMD");
2646 get_render_buffer_parameteriv(struct gl_context
*ctx
,
2647 struct gl_renderbuffer
*rb
, GLenum pname
,
2648 GLint
*params
, const char *func
)
2650 /* No need to flush here since we're just quering state which is
2651 * not effected by rendering.
2655 case GL_RENDERBUFFER_WIDTH_EXT
:
2656 *params
= rb
->Width
;
2658 case GL_RENDERBUFFER_HEIGHT_EXT
:
2659 *params
= rb
->Height
;
2661 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
2662 *params
= rb
->InternalFormat
;
2664 case GL_RENDERBUFFER_RED_SIZE_EXT
:
2665 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
2666 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
2667 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
2668 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
2669 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
2670 *params
= get_component_bits(pname
, rb
->_BaseFormat
, rb
->Format
);
2672 case GL_RENDERBUFFER_SAMPLES
:
2673 if ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_framebuffer_object
)
2674 || _mesa_is_gles3(ctx
)) {
2675 *params
= rb
->NumSamples
;
2679 case GL_RENDERBUFFER_STORAGE_SAMPLES_AMD
:
2680 if (ctx
->Extensions
.AMD_framebuffer_multisample_advanced
) {
2681 *params
= rb
->NumStorageSamples
;
2687 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname=%s)", func
,
2688 _mesa_enum_to_string(pname
));
2693 _mesa_GetRenderbufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
2695 GET_CURRENT_CONTEXT(ctx
);
2697 if (target
!= GL_RENDERBUFFER_EXT
) {
2698 _mesa_error(ctx
, GL_INVALID_ENUM
,
2699 "glGetRenderbufferParameterivEXT(target)");
2703 if (!ctx
->CurrentRenderbuffer
) {
2704 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetRenderbufferParameterivEXT"
2705 "(no renderbuffer bound)");
2709 get_render_buffer_parameteriv(ctx
, ctx
->CurrentRenderbuffer
, pname
,
2710 params
, "glGetRenderbufferParameteriv");
2715 _mesa_GetNamedRenderbufferParameteriv(GLuint renderbuffer
, GLenum pname
,
2718 GET_CURRENT_CONTEXT(ctx
);
2720 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2721 if (!rb
|| rb
== &DummyRenderbuffer
) {
2722 /* ID was reserved, but no real renderbuffer object made yet */
2723 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetNamedRenderbufferParameteriv"
2724 "(invalid renderbuffer %i)", renderbuffer
);
2728 get_render_buffer_parameteriv(ctx
, rb
, pname
, params
,
2729 "glGetNamedRenderbufferParameteriv");
2733 GLboolean GLAPIENTRY
2734 _mesa_IsFramebuffer(GLuint framebuffer
)
2736 GET_CURRENT_CONTEXT(ctx
);
2737 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
2739 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2740 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
2748 * Check if any of the attachments of the given framebuffer are textures
2749 * (render to texture). Call ctx->Driver.RenderTexture() for such
2753 check_begin_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2756 assert(ctx
->Driver
.RenderTexture
);
2758 if (_mesa_is_winsys_fbo(fb
))
2759 return; /* can't render to texture with winsys framebuffers */
2761 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2762 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2763 if (att
->Texture
&& att
->Renderbuffer
->TexImage
2764 && driver_RenderTexture_is_safe(att
)) {
2765 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
2772 * Examine all the framebuffer's attachments to see if any are textures.
2773 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
2774 * notify the device driver that the texture image may have changed.
2777 check_end_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2779 /* Skip if we know NeedsFinishRenderTexture won't be set. */
2780 if (_mesa_is_winsys_fbo(fb
) && !ctx
->Driver
.BindRenderbufferTexImage
)
2783 if (ctx
->Driver
.FinishRenderTexture
) {
2785 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2786 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2787 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
2788 if (rb
&& rb
->NeedsFinishRenderTexture
) {
2789 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
2797 bind_framebuffer(GLenum target
, GLuint framebuffer
)
2799 struct gl_framebuffer
*newDrawFb
, *newReadFb
;
2800 GLboolean bindReadBuf
, bindDrawBuf
;
2801 GET_CURRENT_CONTEXT(ctx
);
2804 case GL_DRAW_FRAMEBUFFER_EXT
:
2805 bindDrawBuf
= GL_TRUE
;
2806 bindReadBuf
= GL_FALSE
;
2808 case GL_READ_FRAMEBUFFER_EXT
:
2809 bindDrawBuf
= GL_FALSE
;
2810 bindReadBuf
= GL_TRUE
;
2812 case GL_FRAMEBUFFER_EXT
:
2813 bindDrawBuf
= GL_TRUE
;
2814 bindReadBuf
= GL_TRUE
;
2817 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
2822 /* Binding a user-created framebuffer object */
2823 newDrawFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2824 if (newDrawFb
== &DummyFramebuffer
) {
2825 /* ID was reserved, but no real framebuffer object made yet */
2828 else if (!newDrawFb
&& ctx
->API
== API_OPENGL_CORE
) {
2829 /* All FBO IDs must be Gen'd */
2830 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2831 "glBindFramebuffer(non-gen name)");
2836 /* create new framebuffer object */
2837 newDrawFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
2839 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
2842 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newDrawFb
);
2844 newReadFb
= newDrawFb
;
2847 /* Binding the window system framebuffer (which was originally set
2848 * with MakeCurrent).
2850 newDrawFb
= ctx
->WinSysDrawBuffer
;
2851 newReadFb
= ctx
->WinSysReadBuffer
;
2854 _mesa_bind_framebuffers(ctx
,
2855 bindDrawBuf
? newDrawFb
: ctx
->DrawBuffer
,
2856 bindReadBuf
? newReadFb
: ctx
->ReadBuffer
);
2860 _mesa_bind_framebuffers(struct gl_context
*ctx
,
2861 struct gl_framebuffer
*newDrawFb
,
2862 struct gl_framebuffer
*newReadFb
)
2864 struct gl_framebuffer
*const oldDrawFb
= ctx
->DrawBuffer
;
2865 struct gl_framebuffer
*const oldReadFb
= ctx
->ReadBuffer
;
2866 const bool bindDrawBuf
= oldDrawFb
!= newDrawFb
;
2867 const bool bindReadBuf
= oldReadFb
!= newReadFb
;
2870 assert(newDrawFb
!= &DummyFramebuffer
);
2873 * OK, now bind the new Draw/Read framebuffers, if they're changing.
2875 * We also check if we're beginning and/or ending render-to-texture.
2876 * When a framebuffer with texture attachments is unbound, call
2877 * ctx->Driver.FinishRenderTexture().
2878 * When a framebuffer with texture attachments is bound, call
2879 * ctx->Driver.RenderTexture().
2881 * Note that if the ReadBuffer has texture attachments we don't consider
2882 * that a render-to-texture case.
2885 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2887 /* check if old readbuffer was render-to-texture */
2888 check_end_texture_render(ctx
, oldReadFb
);
2890 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newReadFb
);
2894 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2895 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleLocations
;
2897 /* check if old framebuffer had any texture attachments */
2899 check_end_texture_render(ctx
, oldDrawFb
);
2901 /* check if newly bound framebuffer has any texture attachments */
2902 check_begin_texture_render(ctx
, newDrawFb
);
2904 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newDrawFb
);
2907 if ((bindDrawBuf
|| bindReadBuf
) && ctx
->Driver
.BindFramebuffer
) {
2908 /* The few classic drivers that actually hook this function really only
2909 * want to know if the draw framebuffer changed.
2911 ctx
->Driver
.BindFramebuffer(ctx
,
2912 bindDrawBuf
? GL_FRAMEBUFFER
: GL_READ_FRAMEBUFFER
,
2913 newDrawFb
, newReadFb
);
2918 _mesa_BindFramebuffer(GLenum target
, GLuint framebuffer
)
2920 /* OpenGL ES glBindFramebuffer and glBindFramebufferOES use this same entry
2921 * point, but they allow the use of user-generated names.
2923 bind_framebuffer(target
, framebuffer
);
2928 _mesa_BindFramebufferEXT(GLenum target
, GLuint framebuffer
)
2930 bind_framebuffer(target
, framebuffer
);
2935 _mesa_DeleteFramebuffers(GLsizei n
, const GLuint
*framebuffers
)
2938 GET_CURRENT_CONTEXT(ctx
);
2941 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteFramebuffers(n < 0)");
2945 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2947 for (i
= 0; i
< n
; i
++) {
2948 if (framebuffers
[i
] > 0) {
2949 struct gl_framebuffer
*fb
;
2950 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
2952 assert(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
2954 /* check if deleting currently bound framebuffer object */
2955 if (fb
== ctx
->DrawBuffer
) {
2957 assert(fb
->RefCount
>= 2);
2958 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, 0);
2960 if (fb
== ctx
->ReadBuffer
) {
2962 assert(fb
->RefCount
>= 2);
2963 _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER
, 0);
2966 /* remove from hash table immediately, to free the ID */
2967 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
2969 if (fb
!= &DummyFramebuffer
) {
2970 /* But the object will not be freed until it's no longer
2971 * bound in any context.
2973 _mesa_reference_framebuffer(&fb
, NULL
);
2982 * This is the implementation for glGenFramebuffers and glCreateFramebuffers.
2983 * It is not exposed to the rest of Mesa to encourage the use of
2984 * nameless buffers in driver internals.
2987 create_framebuffers(GLsizei n
, GLuint
*framebuffers
, bool dsa
)
2989 GET_CURRENT_CONTEXT(ctx
);
2992 struct gl_framebuffer
*fb
;
2994 const char *func
= dsa
? "glCreateFramebuffers" : "glGenFramebuffers";
2997 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n < 0)", func
);
3004 _mesa_HashLockMutex(ctx
->Shared
->FrameBuffers
);
3006 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
3008 for (i
= 0; i
< n
; i
++) {
3009 GLuint name
= first
+ i
;
3010 framebuffers
[i
] = name
;
3013 fb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffers
[i
]);
3015 _mesa_HashUnlockMutex(ctx
->Shared
->FrameBuffers
);
3016 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
3021 fb
= &DummyFramebuffer
;
3023 _mesa_HashInsertLocked(ctx
->Shared
->FrameBuffers
, name
, fb
);
3026 _mesa_HashUnlockMutex(ctx
->Shared
->FrameBuffers
);
3031 _mesa_GenFramebuffers(GLsizei n
, GLuint
*framebuffers
)
3033 create_framebuffers(n
, framebuffers
, false);
3038 _mesa_CreateFramebuffers(GLsizei n
, GLuint
*framebuffers
)
3040 create_framebuffers(n
, framebuffers
, true);
3045 _mesa_check_framebuffer_status(struct gl_context
*ctx
,
3046 struct gl_framebuffer
*buffer
)
3048 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
3050 if (_mesa_is_winsys_fbo(buffer
)) {
3051 /* EGL_KHR_surfaceless_context allows the winsys FBO to be incomplete. */
3052 if (buffer
!= &IncompleteFramebuffer
) {
3053 return GL_FRAMEBUFFER_COMPLETE_EXT
;
3055 return GL_FRAMEBUFFER_UNDEFINED
;
3059 /* No need to flush here */
3061 if (buffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE
) {
3062 _mesa_test_framebuffer_completeness(ctx
, buffer
);
3065 return buffer
->_Status
;
3070 _mesa_CheckFramebufferStatus_no_error(GLenum target
)
3072 GET_CURRENT_CONTEXT(ctx
);
3074 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
3075 return _mesa_check_framebuffer_status(ctx
, fb
);
3080 _mesa_CheckFramebufferStatus(GLenum target
)
3082 struct gl_framebuffer
*fb
;
3083 GET_CURRENT_CONTEXT(ctx
);
3085 if (MESA_VERBOSE
& VERBOSE_API
)
3086 _mesa_debug(ctx
, "glCheckFramebufferStatus(%s)\n",
3087 _mesa_enum_to_string(target
));
3089 fb
= get_framebuffer_target(ctx
, target
);
3091 _mesa_error(ctx
, GL_INVALID_ENUM
,
3092 "glCheckFramebufferStatus(invalid target %s)",
3093 _mesa_enum_to_string(target
));
3097 return _mesa_check_framebuffer_status(ctx
, fb
);
3102 _mesa_CheckNamedFramebufferStatus(GLuint framebuffer
, GLenum target
)
3104 struct gl_framebuffer
*fb
;
3105 GET_CURRENT_CONTEXT(ctx
);
3107 /* Validate the target (for conformance's sake) and grab a reference to the
3108 * default framebuffer in case framebuffer = 0.
3109 * Section 9.4 Framebuffer Completeness of the OpenGL 4.5 core spec
3110 * (30.10.2014, PDF page 336) says:
3111 * "If framebuffer is zero, then the status of the default read or
3112 * draw framebuffer (as determined by target) is returned."
3115 case GL_DRAW_FRAMEBUFFER
:
3116 case GL_FRAMEBUFFER
:
3117 fb
= ctx
->WinSysDrawBuffer
;
3119 case GL_READ_FRAMEBUFFER
:
3120 fb
= ctx
->WinSysReadBuffer
;
3123 _mesa_error(ctx
, GL_INVALID_ENUM
,
3124 "glCheckNamedFramebufferStatus(invalid target %s)",
3125 _mesa_enum_to_string(target
));
3130 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3131 "glCheckNamedFramebufferStatus");
3136 return _mesa_check_framebuffer_status(ctx
, fb
);
3141 * Replicate the src attachment point. Used by framebuffer_texture() when
3142 * the same texture is attached at GL_DEPTH_ATTACHMENT and
3143 * GL_STENCIL_ATTACHMENT.
3146 reuse_framebuffer_texture_attachment(struct gl_framebuffer
*fb
,
3147 gl_buffer_index dst
,
3148 gl_buffer_index src
)
3150 struct gl_renderbuffer_attachment
*dst_att
= &fb
->Attachment
[dst
];
3151 struct gl_renderbuffer_attachment
*src_att
= &fb
->Attachment
[src
];
3153 assert(src_att
->Texture
!= NULL
);
3154 assert(src_att
->Renderbuffer
!= NULL
);
3156 _mesa_reference_texobj(&dst_att
->Texture
, src_att
->Texture
);
3157 _mesa_reference_renderbuffer(&dst_att
->Renderbuffer
, src_att
->Renderbuffer
);
3158 dst_att
->Type
= src_att
->Type
;
3159 dst_att
->Complete
= src_att
->Complete
;
3160 dst_att
->TextureLevel
= src_att
->TextureLevel
;
3161 dst_att
->CubeMapFace
= src_att
->CubeMapFace
;
3162 dst_att
->Zoffset
= src_att
->Zoffset
;
3163 dst_att
->Layered
= src_att
->Layered
;
3167 static struct gl_texture_object
*
3168 get_texture_for_framebuffer(struct gl_context
*ctx
, GLuint texture
)
3173 return _mesa_lookup_texture(ctx
, texture
);
3178 * Common code called by gl*FramebufferTexture*() to retrieve the correct
3179 * texture object pointer.
3181 * \param texObj where the pointer to the texture object is returned. Note
3182 * that a successful call may return texObj = NULL.
3184 * \return true if no errors, false if errors
3187 get_texture_for_framebuffer_err(struct gl_context
*ctx
, GLuint texture
,
3188 bool layered
, const char *caller
,
3189 struct gl_texture_object
**texObj
)
3191 *texObj
= NULL
; /* This will get returned if texture = 0. */
3196 *texObj
= _mesa_lookup_texture(ctx
, texture
);
3197 if (*texObj
== NULL
|| (*texObj
)->Target
== 0) {
3198 /* Can't render to a non-existent texture object.
3200 * The OpenGL 4.5 core spec (02.02.2015) in Section 9.2 Binding and
3201 * Managing Framebuffer Objects specifies a different error
3202 * depending upon the calling function (PDF pages 325-328).
3203 * *FramebufferTexture (where layered = GL_TRUE) throws invalid
3204 * value, while the other commands throw invalid operation (where
3205 * layered = GL_FALSE).
3207 const GLenum error
= layered
? GL_INVALID_VALUE
:
3208 GL_INVALID_OPERATION
;
3209 _mesa_error(ctx
, error
,
3210 "%s(non-existent texture %u)", caller
, texture
);
3219 * Common code called by gl*FramebufferTexture() to verify the texture target
3220 * and decide whether or not the attachment should truly be considered
3223 * \param layered true if attachment should be considered layered, false if
3226 * \return true if no errors, false if errors
3229 check_layered_texture_target(struct gl_context
*ctx
, GLenum target
,
3230 const char *caller
, GLboolean
*layered
)
3236 case GL_TEXTURE_1D_ARRAY_EXT
:
3237 case GL_TEXTURE_2D_ARRAY_EXT
:
3238 case GL_TEXTURE_CUBE_MAP
:
3239 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3240 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3244 case GL_TEXTURE_RECTANGLE
:
3245 case GL_TEXTURE_2D_MULTISAMPLE
:
3246 /* These texture types are valid to pass to
3247 * glFramebufferTexture(), but since they aren't layered, it
3248 * is equivalent to calling glFramebufferTexture{1D,2D}().
3250 *layered
= GL_FALSE
;
3254 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3255 "%s(invalid texture target %s)", caller
,
3256 _mesa_enum_to_string(target
));
3262 * Common code called by gl*FramebufferTextureLayer() to verify the texture
3265 * \return true if no errors, false if errors
3268 check_texture_target(struct gl_context
*ctx
, GLenum target
,
3271 /* We're being called by glFramebufferTextureLayer().
3272 * The only legal texture types for that function are 3D,
3273 * cube-map, and 1D/2D/cube-map array textures.
3275 * We don't need to check for GL_ARB_texture_cube_map_array because the
3276 * application wouldn't have been able to create a texture with a
3277 * GL_TEXTURE_CUBE_MAP_ARRAY target if the extension were not enabled.
3281 case GL_TEXTURE_1D_ARRAY
:
3282 case GL_TEXTURE_2D_ARRAY
:
3283 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3284 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3286 case GL_TEXTURE_CUBE_MAP
:
3287 /* GL_TEXTURE_CUBE_MAP is only allowed by OpenGL 4.5 here, which
3288 * includes the DSA API.
3290 * Because DSA is only enabled for GL 3.1+ and this can be called
3291 * from _mesa_FramebufferTextureLayer in compatibility profile,
3292 * we need to check the version.
3294 return _mesa_is_desktop_gl(ctx
) && ctx
->Version
>= 31;
3297 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3298 "%s(invalid texture target %s)", caller
,
3299 _mesa_enum_to_string(target
));
3305 * Common code called by glFramebufferTexture*D() to verify the texture
3308 * \return true if no errors, false if errors
3311 check_textarget(struct gl_context
*ctx
, int dims
, GLenum target
,
3312 GLenum textarget
, const char *caller
)
3316 switch (textarget
) {
3320 case GL_TEXTURE_1D_ARRAY
:
3321 err
= dims
!= 1 || !ctx
->Extensions
.EXT_texture_array
;
3326 case GL_TEXTURE_2D_ARRAY
:
3327 err
= dims
!= 2 || !ctx
->Extensions
.EXT_texture_array
||
3328 (_mesa_is_gles(ctx
) && ctx
->Version
< 30);
3330 case GL_TEXTURE_2D_MULTISAMPLE
:
3331 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3333 !ctx
->Extensions
.ARB_texture_multisample
||
3334 (_mesa_is_gles(ctx
) && ctx
->Version
< 31);
3336 case GL_TEXTURE_RECTANGLE
:
3337 err
= dims
!= 2 || _mesa_is_gles(ctx
) ||
3338 !ctx
->Extensions
.NV_texture_rectangle
;
3340 case GL_TEXTURE_CUBE_MAP
:
3341 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3344 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
3345 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
3346 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
3347 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
3348 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
3349 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
3350 err
= dims
!= 2 || !ctx
->Extensions
.ARB_texture_cube_map
;
3356 _mesa_error(ctx
, GL_INVALID_ENUM
,
3357 "%s(unknown textarget 0x%x)", caller
, textarget
);
3362 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3363 "%s(invalid textarget %s)",
3364 caller
, _mesa_enum_to_string(textarget
));
3368 /* Make sure textarget is consistent with the texture's type */
3369 err
= (target
== GL_TEXTURE_CUBE_MAP
) ?
3370 !_mesa_is_cube_face(textarget
): (target
!= textarget
);
3373 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3374 "%s(mismatched texture target)", caller
);
3383 * Common code called by gl*FramebufferTextureLayer() and
3384 * glFramebufferTexture3D() to validate the layer.
3386 * \return true if no errors, false if errors
3389 check_layer(struct gl_context
*ctx
, GLenum target
, GLint layer
,
3392 /* Page 306 (page 328 of the PDF) of the OpenGL 4.5 (Core Profile)
3395 * "An INVALID_VALUE error is generated if texture is non-zero
3396 * and layer is negative."
3399 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(layer %d < 0)", caller
, layer
);
3403 if (target
== GL_TEXTURE_3D
) {
3404 const GLuint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
3405 if (layer
>= maxSize
) {
3406 _mesa_error(ctx
, GL_INVALID_VALUE
,
3407 "%s(invalid layer %u)", caller
, layer
);
3411 else if ((target
== GL_TEXTURE_1D_ARRAY
) ||
3412 (target
== GL_TEXTURE_2D_ARRAY
) ||
3413 (target
== GL_TEXTURE_CUBE_MAP_ARRAY
) ||
3414 (target
== GL_TEXTURE_2D_MULTISAMPLE_ARRAY
)) {
3415 if (layer
>= ctx
->Const
.MaxArrayTextureLayers
) {
3416 _mesa_error(ctx
, GL_INVALID_VALUE
,
3417 "%s(layer %u >= GL_MAX_ARRAY_TEXTURE_LAYERS)",
3422 else if (target
== GL_TEXTURE_CUBE_MAP
) {
3424 _mesa_error(ctx
, GL_INVALID_VALUE
,
3425 "%s(layer %u >= 6)", caller
, layer
);
3435 * Common code called by all gl*FramebufferTexture*() entry points to verify
3438 * \return true if no errors, false if errors
3441 check_level(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
3442 GLenum target
, GLint level
, const char *caller
)
3444 /* Section 9.2.8 of the OpenGL 4.6 specification says:
3446 * "If texture refers to an immutable-format texture, level must be
3447 * greater than or equal to zero and smaller than the value of
3448 * TEXTURE_VIEW_NUM_LEVELS for texture."
3450 const int max_levels
= texObj
->Immutable
? texObj
->ImmutableLevels
:
3451 _mesa_max_texture_levels(ctx
, target
);
3453 if (level
< 0 || level
>= max_levels
) {
3454 _mesa_error(ctx
, GL_INVALID_VALUE
,
3455 "%s(invalid level %d)", caller
, level
);
3463 struct gl_renderbuffer_attachment
*
3464 _mesa_get_and_validate_attachment(struct gl_context
*ctx
,
3465 struct gl_framebuffer
*fb
,
3466 GLenum attachment
, const char *caller
)
3468 /* The window-system framebuffer object is immutable */
3469 if (_mesa_is_winsys_fbo(fb
)) {
3470 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(window-system framebuffer)",
3475 /* Not a hash lookup, so we can afford to get the attachment here. */
3476 bool is_color_attachment
;
3477 struct gl_renderbuffer_attachment
*att
=
3478 get_attachment(ctx
, fb
, attachment
, &is_color_attachment
);
3480 if (is_color_attachment
) {
3481 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3482 "%s(invalid color attachment %s)", caller
,
3483 _mesa_enum_to_string(attachment
));
3485 _mesa_error(ctx
, GL_INVALID_ENUM
,
3486 "%s(invalid attachment %s)", caller
,
3487 _mesa_enum_to_string(attachment
));
3497 _mesa_framebuffer_texture(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
3499 struct gl_renderbuffer_attachment
*att
,
3500 struct gl_texture_object
*texObj
, GLenum textarget
,
3501 GLint level
, GLuint layer
, GLboolean layered
)
3503 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3505 simple_mtx_lock(&fb
->Mutex
);
3507 if (attachment
== GL_DEPTH_ATTACHMENT
&&
3508 texObj
== fb
->Attachment
[BUFFER_STENCIL
].Texture
&&
3509 level
== fb
->Attachment
[BUFFER_STENCIL
].TextureLevel
&&
3510 _mesa_tex_target_to_face(textarget
) ==
3511 fb
->Attachment
[BUFFER_STENCIL
].CubeMapFace
&&
3512 layer
== fb
->Attachment
[BUFFER_STENCIL
].Zoffset
) {
3513 /* The texture object is already attached to the stencil attachment
3514 * point. Don't create a new renderbuffer; just reuse the stencil
3515 * attachment's. This is required to prevent a GL error in
3516 * glGetFramebufferAttachmentParameteriv(GL_DEPTH_STENCIL).
3518 reuse_framebuffer_texture_attachment(fb
, BUFFER_DEPTH
,
3520 } else if (attachment
== GL_STENCIL_ATTACHMENT
&&
3521 texObj
== fb
->Attachment
[BUFFER_DEPTH
].Texture
&&
3522 level
== fb
->Attachment
[BUFFER_DEPTH
].TextureLevel
&&
3523 _mesa_tex_target_to_face(textarget
) ==
3524 fb
->Attachment
[BUFFER_DEPTH
].CubeMapFace
&&
3525 layer
== fb
->Attachment
[BUFFER_DEPTH
].Zoffset
) {
3526 /* As above, but with depth and stencil transposed. */
3527 reuse_framebuffer_texture_attachment(fb
, BUFFER_STENCIL
,
3530 set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
3531 level
, layer
, layered
);
3533 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3534 /* Above we created a new renderbuffer and attached it to the
3535 * depth attachment point. Now attach it to the stencil attachment
3538 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3539 reuse_framebuffer_texture_attachment(fb
,BUFFER_STENCIL
,
3544 /* Set the render-to-texture flag. We'll check this flag in
3545 * glTexImage() and friends to determine if we need to revalidate
3546 * any FBOs that might be rendering into this texture.
3547 * This flag never gets cleared since it's non-trivial to determine
3548 * when all FBOs might be done rendering to this texture. That's OK
3549 * though since it's uncommon to render to a texture then repeatedly
3550 * call glTexImage() to change images in the texture.
3552 texObj
->_RenderToTexture
= GL_TRUE
;
3555 remove_attachment(ctx
, att
);
3556 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3557 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3558 remove_attachment(ctx
, &fb
->Attachment
[BUFFER_STENCIL
]);
3562 invalidate_framebuffer(fb
);
3564 simple_mtx_unlock(&fb
->Mutex
);
3569 framebuffer_texture_with_dims_no_error(GLenum target
, GLenum attachment
,
3570 GLenum textarget
, GLuint texture
,
3571 GLint level
, GLint layer
)
3573 GET_CURRENT_CONTEXT(ctx
);
3575 /* Get the framebuffer object */
3576 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
3578 /* Get the texture object */
3579 struct gl_texture_object
*texObj
=
3580 get_texture_for_framebuffer(ctx
, texture
);
3582 struct gl_renderbuffer_attachment
*att
=
3583 get_attachment(ctx
, fb
, attachment
, NULL
);
3585 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3586 level
, layer
, GL_FALSE
);
3591 framebuffer_texture_with_dims(int dims
, GLenum target
,
3592 GLenum attachment
, GLenum textarget
,
3593 GLuint texture
, GLint level
, GLint layer
,
3596 GET_CURRENT_CONTEXT(ctx
);
3597 struct gl_framebuffer
*fb
;
3598 struct gl_texture_object
*texObj
;
3600 /* Get the framebuffer object */
3601 fb
= get_framebuffer_target(ctx
, target
);
3603 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", caller
,
3604 _mesa_enum_to_string(target
));
3608 /* Get the texture object */
3609 if (!get_texture_for_framebuffer_err(ctx
, texture
, false, caller
, &texObj
))
3613 if (!check_textarget(ctx
, dims
, texObj
->Target
, textarget
, caller
))
3616 if ((dims
== 3) && !check_layer(ctx
, texObj
->Target
, layer
, caller
))
3619 if (!check_level(ctx
, texObj
, textarget
, level
, caller
))
3623 struct gl_renderbuffer_attachment
*att
=
3624 _mesa_get_and_validate_attachment(ctx
, fb
, attachment
, caller
);
3628 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3629 level
, layer
, GL_FALSE
);
3634 _mesa_FramebufferTexture1D_no_error(GLenum target
, GLenum attachment
,
3635 GLenum textarget
, GLuint texture
,
3638 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3644 _mesa_FramebufferTexture1D(GLenum target
, GLenum attachment
,
3645 GLenum textarget
, GLuint texture
, GLint level
)
3647 framebuffer_texture_with_dims(1, target
, attachment
, textarget
, texture
,
3648 level
, 0, "glFramebufferTexture1D");
3653 _mesa_FramebufferTexture2D_no_error(GLenum target
, GLenum attachment
,
3654 GLenum textarget
, GLuint texture
,
3657 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3663 _mesa_FramebufferTexture2D(GLenum target
, GLenum attachment
,
3664 GLenum textarget
, GLuint texture
, GLint level
)
3666 framebuffer_texture_with_dims(2, target
, attachment
, textarget
, texture
,
3667 level
, 0, "glFramebufferTexture2D");
3672 _mesa_FramebufferTexture3D_no_error(GLenum target
, GLenum attachment
,
3673 GLenum textarget
, GLuint texture
,
3674 GLint level
, GLint layer
)
3676 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3677 texture
, level
, layer
);
3682 _mesa_FramebufferTexture3D(GLenum target
, GLenum attachment
,
3683 GLenum textarget
, GLuint texture
,
3684 GLint level
, GLint layer
)
3686 framebuffer_texture_with_dims(3, target
, attachment
, textarget
, texture
,
3687 level
, layer
, "glFramebufferTexture3D");
3691 static ALWAYS_INLINE
void
3692 frame_buffer_texture(GLuint framebuffer
, GLenum target
,
3693 GLenum attachment
, GLuint texture
,
3694 GLint level
, GLint layer
, const char *func
,
3695 bool dsa
, bool no_error
, bool check_layered
)
3697 GET_CURRENT_CONTEXT(ctx
);
3698 GLboolean layered
= GL_FALSE
;
3700 if (!no_error
&& check_layered
) {
3701 if (!_mesa_has_geometry_shaders(ctx
)) {
3702 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3703 "unsupported function (%s) called", func
);
3708 /* Get the framebuffer object */
3709 struct gl_framebuffer
*fb
;
3712 fb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
3714 fb
= get_framebuffer_target(ctx
, target
);
3718 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
, func
);
3722 fb
= get_framebuffer_target(ctx
, target
);
3724 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)",
3725 func
, _mesa_enum_to_string(target
));
3731 /* Get the texture object and framebuffer attachment*/
3732 struct gl_renderbuffer_attachment
*att
;
3733 struct gl_texture_object
*texObj
;
3735 texObj
= get_texture_for_framebuffer(ctx
, texture
);
3736 att
= get_attachment(ctx
, fb
, attachment
, NULL
);
3738 if (!get_texture_for_framebuffer_err(ctx
, texture
, check_layered
, func
,
3742 att
= _mesa_get_and_validate_attachment(ctx
, fb
, attachment
, func
);
3747 GLenum textarget
= 0;
3749 if (check_layered
) {
3750 /* We do this regardless of no_error because this sets layered */
3751 if (!check_layered_texture_target(ctx
, texObj
->Target
, func
,
3757 if (!check_layered
) {
3758 if (!check_texture_target(ctx
, texObj
->Target
, func
))
3761 if (!check_layer(ctx
, texObj
->Target
, layer
, func
))
3765 if (!check_level(ctx
, texObj
, texObj
->Target
, level
, func
))
3769 if (!check_layered
&& texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3770 assert(layer
>= 0 && layer
< 6);
3771 textarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ layer
;
3776 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3777 level
, layer
, layered
);
3781 _mesa_FramebufferTextureLayer_no_error(GLenum target
, GLenum attachment
,
3782 GLuint texture
, GLint level
,
3785 frame_buffer_texture(0, target
, attachment
, texture
, level
, layer
,
3786 "glFramebufferTextureLayer", false, true, false);
3791 _mesa_FramebufferTextureLayer(GLenum target
, GLenum attachment
,
3792 GLuint texture
, GLint level
, GLint layer
)
3794 frame_buffer_texture(0, target
, attachment
, texture
, level
, layer
,
3795 "glFramebufferTextureLayer", false, false, false);
3800 _mesa_NamedFramebufferTextureLayer_no_error(GLuint framebuffer
,
3802 GLuint texture
, GLint level
,
3805 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, layer
,
3806 "glNamedFramebufferTextureLayer", true, true, false);
3811 _mesa_NamedFramebufferTextureLayer(GLuint framebuffer
, GLenum attachment
,
3812 GLuint texture
, GLint level
, GLint layer
)
3814 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, layer
,
3815 "glNamedFramebufferTextureLayer", true, false, false);
3820 _mesa_FramebufferTexture_no_error(GLenum target
, GLenum attachment
,
3821 GLuint texture
, GLint level
)
3823 frame_buffer_texture(0, target
, attachment
, texture
, level
, 0,
3824 "glFramebufferTexture", false, true, true);
3829 _mesa_FramebufferTexture(GLenum target
, GLenum attachment
,
3830 GLuint texture
, GLint level
)
3832 frame_buffer_texture(0, target
, attachment
, texture
, level
, 0,
3833 "glFramebufferTexture", false, false, true);
3837 _mesa_NamedFramebufferTexture_no_error(GLuint framebuffer
, GLenum attachment
,
3838 GLuint texture
, GLint level
)
3840 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, 0,
3841 "glNamedFramebufferTexture", true, true, true);
3846 _mesa_NamedFramebufferTexture(GLuint framebuffer
, GLenum attachment
,
3847 GLuint texture
, GLint level
)
3849 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, 0,
3850 "glNamedFramebufferTexture", true, false, true);
3855 _mesa_framebuffer_renderbuffer(struct gl_context
*ctx
,
3856 struct gl_framebuffer
*fb
,
3858 struct gl_renderbuffer
*rb
)
3860 assert(!_mesa_is_winsys_fbo(fb
));
3862 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3864 assert(ctx
->Driver
.FramebufferRenderbuffer
);
3865 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
3867 /* Some subsequent GL commands may depend on the framebuffer's visual
3868 * after the binding is updated. Update visual info now.
3870 _mesa_update_framebuffer_visual(ctx
, fb
);
3873 static ALWAYS_INLINE
void
3874 framebuffer_renderbuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
3875 GLenum attachment
, GLenum renderbuffertarget
,
3876 GLuint renderbuffer
, const char *func
, bool no_error
)
3878 struct gl_renderbuffer_attachment
*att
;
3879 struct gl_renderbuffer
*rb
;
3880 bool is_color_attachment
;
3882 if (!no_error
&& renderbuffertarget
!= GL_RENDERBUFFER
) {
3883 _mesa_error(ctx
, GL_INVALID_ENUM
,
3884 "%s(renderbuffertarget is not GL_RENDERBUFFER)", func
);
3890 rb
= _mesa_lookup_renderbuffer_err(ctx
, renderbuffer
, func
);
3894 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
3897 /* remove renderbuffer attachment */
3902 if (_mesa_is_winsys_fbo(fb
)) {
3903 /* Can't attach new renderbuffers to a window system framebuffer */
3904 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3905 "%s(window-system framebuffer)", func
);
3909 att
= get_attachment(ctx
, fb
, attachment
, &is_color_attachment
);
3912 * From OpenGL 4.5 spec, section 9.2.7 "Attaching Renderbuffer Images
3913 * to a Framebuffer":
3915 * "An INVALID_OPERATION error is generated if attachment is
3916 * COLOR_- ATTACHMENTm where m is greater than or equal to the
3917 * value of MAX_COLOR_- ATTACHMENTS ."
3919 * If we are at this point, is because the attachment is not valid, so
3920 * if is_color_attachment is true, is because of the previous reason.
3922 if (is_color_attachment
) {
3923 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3924 "%s(invalid color attachment %s)", func
,
3925 _mesa_enum_to_string(attachment
));
3927 _mesa_error(ctx
, GL_INVALID_ENUM
,
3928 "%s(invalid attachment %s)", func
,
3929 _mesa_enum_to_string(attachment
));
3935 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
&&
3936 rb
&& rb
->Format
!= MESA_FORMAT_NONE
) {
3937 /* make sure the renderbuffer is a depth/stencil format */
3938 const GLenum baseFormat
= _mesa_get_format_base_format(rb
->Format
);
3939 if (baseFormat
!= GL_DEPTH_STENCIL
) {
3940 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3941 "%s(renderbuffer is not DEPTH_STENCIL format)", func
);
3947 _mesa_framebuffer_renderbuffer(ctx
, fb
, attachment
, rb
);
3951 framebuffer_renderbuffer_error(struct gl_context
*ctx
,
3952 struct gl_framebuffer
*fb
, GLenum attachment
,
3953 GLenum renderbuffertarget
,
3954 GLuint renderbuffer
, const char *func
)
3956 framebuffer_renderbuffer(ctx
, fb
, attachment
, renderbuffertarget
,
3957 renderbuffer
, func
, false);
3961 framebuffer_renderbuffer_no_error(struct gl_context
*ctx
,
3962 struct gl_framebuffer
*fb
, GLenum attachment
,
3963 GLenum renderbuffertarget
,
3964 GLuint renderbuffer
, const char *func
)
3966 framebuffer_renderbuffer(ctx
, fb
, attachment
, renderbuffertarget
,
3967 renderbuffer
, func
, true);
3971 _mesa_FramebufferRenderbuffer_no_error(GLenum target
, GLenum attachment
,
3972 GLenum renderbuffertarget
,
3973 GLuint renderbuffer
)
3975 GET_CURRENT_CONTEXT(ctx
);
3977 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
3978 framebuffer_renderbuffer_no_error(ctx
, fb
, attachment
, renderbuffertarget
,
3979 renderbuffer
, "glFramebufferRenderbuffer");
3983 _mesa_FramebufferRenderbuffer(GLenum target
, GLenum attachment
,
3984 GLenum renderbuffertarget
,
3985 GLuint renderbuffer
)
3987 struct gl_framebuffer
*fb
;
3988 GET_CURRENT_CONTEXT(ctx
);
3990 fb
= get_framebuffer_target(ctx
, target
);
3992 _mesa_error(ctx
, GL_INVALID_ENUM
,
3993 "glFramebufferRenderbuffer(invalid target %s)",
3994 _mesa_enum_to_string(target
));
3998 framebuffer_renderbuffer_error(ctx
, fb
, attachment
, renderbuffertarget
,
3999 renderbuffer
, "glFramebufferRenderbuffer");
4003 _mesa_NamedFramebufferRenderbuffer_no_error(GLuint framebuffer
,
4005 GLenum renderbuffertarget
,
4006 GLuint renderbuffer
)
4008 GET_CURRENT_CONTEXT(ctx
);
4010 struct gl_framebuffer
*fb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
4011 framebuffer_renderbuffer_no_error(ctx
, fb
, attachment
, renderbuffertarget
,
4013 "glNamedFramebufferRenderbuffer");
4017 _mesa_NamedFramebufferRenderbuffer(GLuint framebuffer
, GLenum attachment
,
4018 GLenum renderbuffertarget
,
4019 GLuint renderbuffer
)
4021 struct gl_framebuffer
*fb
;
4022 GET_CURRENT_CONTEXT(ctx
);
4024 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4025 "glNamedFramebufferRenderbuffer");
4029 framebuffer_renderbuffer_error(ctx
, fb
, attachment
, renderbuffertarget
,
4031 "glNamedFramebufferRenderbuffer");
4036 get_framebuffer_attachment_parameter(struct gl_context
*ctx
,
4037 struct gl_framebuffer
*buffer
,
4038 GLenum attachment
, GLenum pname
,
4039 GLint
*params
, const char *caller
)
4041 const struct gl_renderbuffer_attachment
*att
;
4042 bool is_color_attachment
= false;
4045 /* The error code for an attachment type of GL_NONE differs between APIs.
4047 * From the ES 2.0.25 specification, page 127:
4048 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
4049 * querying any other pname will generate INVALID_ENUM."
4051 * From the OpenGL 3.0 specification, page 337, or identically,
4052 * the OpenGL ES 3.0.4 specification, page 240:
4054 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, no
4055 * framebuffer is bound to target. In this case querying pname
4056 * FRAMEBUFFER_ATTACHMENT_OBJECT_NAME will return zero, and all other
4057 * queries will generate an INVALID_OPERATION error."
4059 err
= ctx
->API
== API_OPENGLES2
&& ctx
->Version
< 30 ?
4060 GL_INVALID_ENUM
: GL_INVALID_OPERATION
;
4062 if (_mesa_is_winsys_fbo(buffer
)) {
4063 /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
4066 * "If the framebuffer currently bound to target is zero, then
4067 * INVALID_OPERATION is generated."
4069 * The EXT_framebuffer_object spec has the same wording, and the
4070 * OES_framebuffer_object spec refers to the EXT_framebuffer_object
4073 if ((!_mesa_is_desktop_gl(ctx
) ||
4074 !ctx
->Extensions
.ARB_framebuffer_object
)
4075 && !_mesa_is_gles3(ctx
)) {
4076 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4077 "%s(window-system framebuffer)", caller
);
4081 if (_mesa_is_gles3(ctx
) && attachment
!= GL_BACK
&&
4082 attachment
!= GL_DEPTH
&& attachment
!= GL_STENCIL
) {
4083 _mesa_error(ctx
, GL_INVALID_ENUM
,
4084 "%s(invalid attachment %s)", caller
,
4085 _mesa_enum_to_string(attachment
));
4089 /* The specs are not clear about how to handle
4090 * GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME with the default framebuffer,
4091 * but dEQP-GLES3 expects an INVALID_ENUM error. This has also been
4094 * https://cvs.khronos.org/bugzilla/show_bug.cgi?id=12928#c1
4095 * and https://bugs.freedesktop.org/show_bug.cgi?id=31947
4097 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME
) {
4098 _mesa_error(ctx
, GL_INVALID_ENUM
,
4099 "%s(requesting GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME "
4100 "when GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is "
4101 "GL_FRAMEBUFFER_DEFAULT is not allowed)", caller
);
4105 /* the default / window-system FBO */
4106 att
= get_fb0_attachment(ctx
, buffer
, attachment
);
4109 /* user-created framebuffer FBO */
4110 att
= get_attachment(ctx
, buffer
, attachment
, &is_color_attachment
);
4115 * From OpenGL 4.5 spec, section 9.2.3 "Framebuffer Object Queries":
4117 * "An INVALID_OPERATION error is generated if a framebuffer object
4118 * is bound to target and attachment is COLOR_ATTACHMENTm where m is
4119 * greater than or equal to the value of MAX_COLOR_ATTACHMENTS."
4121 * If we are at this point, is because the attachment is not valid, so
4122 * if is_color_attachment is true, is because of the previous reason.
4124 if (is_color_attachment
) {
4125 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid color attachment %s)",
4126 caller
, _mesa_enum_to_string(attachment
));
4128 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", caller
,
4129 _mesa_enum_to_string(attachment
));
4134 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
4135 const struct gl_renderbuffer_attachment
*depthAtt
, *stencilAtt
;
4136 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
) {
4137 /* This behavior is first specified in OpenGL 4.4 specification.
4139 * From the OpenGL 4.4 spec page 275:
4140 * "This query cannot be performed for a combined depth+stencil
4141 * attachment, since it does not have a single format."
4143 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4144 "%s(GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE"
4145 " is invalid for depth+stencil attachment)", caller
);
4148 /* the depth and stencil attachments must point to the same buffer */
4149 depthAtt
= get_attachment(ctx
, buffer
, GL_DEPTH_ATTACHMENT
, NULL
);
4150 stencilAtt
= get_attachment(ctx
, buffer
, GL_STENCIL_ATTACHMENT
, NULL
);
4151 if (depthAtt
->Renderbuffer
!= stencilAtt
->Renderbuffer
) {
4152 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4153 "%s(DEPTH/STENCIL attachments differ)", caller
);
4158 /* No need to flush here */
4161 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
4162 /* From the OpenGL spec, 9.2. Binding and Managing Framebuffer Objects:
4164 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
4165 * either no framebuffer is bound to target; or the default framebuffer
4166 * is bound, attachment is DEPTH or STENCIL, and the number of depth or
4167 * stencil bits, respectively, is zero."
4169 * Note that we don't need explicit checks on DEPTH and STENCIL, because
4170 * on the case the spec is pointing, att->Type is already NONE, so we
4171 * just need to check att->Type.
4173 *params
= (_mesa_is_winsys_fbo(buffer
) && att
->Type
!= GL_NONE
) ?
4174 GL_FRAMEBUFFER_DEFAULT
: att
->Type
;
4176 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
4177 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
4178 *params
= att
->Renderbuffer
->Name
;
4180 else if (att
->Type
== GL_TEXTURE
) {
4181 *params
= att
->Texture
->Name
;
4184 assert(att
->Type
== GL_NONE
);
4185 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
4188 goto invalid_pname_enum
;
4192 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
4193 if (att
->Type
== GL_TEXTURE
) {
4194 *params
= att
->TextureLevel
;
4196 else if (att
->Type
== GL_NONE
) {
4197 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4198 _mesa_enum_to_string(pname
));
4201 goto invalid_pname_enum
;
4204 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
4205 if (att
->Type
== GL_TEXTURE
) {
4206 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
4207 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
4213 else if (att
->Type
== GL_NONE
) {
4214 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4215 _mesa_enum_to_string(pname
));
4218 goto invalid_pname_enum
;
4221 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
4222 if (ctx
->API
== API_OPENGLES
) {
4223 goto invalid_pname_enum
;
4224 } else if (att
->Type
== GL_NONE
) {
4225 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4226 _mesa_enum_to_string(pname
));
4227 } else if (att
->Type
== GL_TEXTURE
) {
4228 if (att
->Texture
&& (att
->Texture
->Target
== GL_TEXTURE_3D
||
4229 att
->Texture
->Target
== GL_TEXTURE_2D_ARRAY
)) {
4230 *params
= att
->Zoffset
;
4237 goto invalid_pname_enum
;
4240 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
:
4241 if ((!_mesa_is_desktop_gl(ctx
) ||
4242 !ctx
->Extensions
.ARB_framebuffer_object
)
4243 && !_mesa_is_gles3(ctx
)) {
4244 goto invalid_pname_enum
;
4246 else if (att
->Type
== GL_NONE
) {
4247 if (_mesa_is_winsys_fbo(buffer
) &&
4248 (attachment
== GL_DEPTH
|| attachment
== GL_STENCIL
)) {
4249 *params
= GL_LINEAR
;
4251 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4252 _mesa_enum_to_string(pname
));
4256 if (ctx
->Extensions
.EXT_framebuffer_sRGB
) {
4258 _mesa_get_format_color_encoding(att
->Renderbuffer
->Format
);
4261 /* According to ARB_framebuffer_sRGB, we should return LINEAR
4262 * if the sRGB conversion is unsupported. */
4263 *params
= GL_LINEAR
;
4267 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
:
4268 if ((ctx
->API
!= API_OPENGL_COMPAT
||
4269 !ctx
->Extensions
.ARB_framebuffer_object
)
4270 && ctx
->API
!= API_OPENGL_CORE
4271 && !_mesa_is_gles3(ctx
)) {
4272 goto invalid_pname_enum
;
4274 else if (att
->Type
== GL_NONE
) {
4275 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4276 _mesa_enum_to_string(pname
));
4279 mesa_format format
= att
->Renderbuffer
->Format
;
4281 /* Page 235 (page 247 of the PDF) in section 6.1.13 of the OpenGL ES
4284 * "If pname is FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE.... If
4285 * attachment is DEPTH_STENCIL_ATTACHMENT the query will fail and
4286 * generate an INVALID_OPERATION error.
4288 if (_mesa_is_gles3(ctx
) &&
4289 attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
4290 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4292 "GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE of "
4293 "GL_DEPTH_STENCIL_ATTACHMENT)", caller
);
4297 if (format
== MESA_FORMAT_S_UINT8
) {
4301 else if (format
== MESA_FORMAT_Z32_FLOAT_S8X24_UINT
) {
4302 /* depends on the attachment parameter */
4303 if (attachment
== GL_STENCIL_ATTACHMENT
) {
4311 *params
= _mesa_get_format_datatype(format
);
4315 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
4316 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
4317 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
4318 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
4319 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
4320 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
4321 if ((!_mesa_is_desktop_gl(ctx
) ||
4322 !ctx
->Extensions
.ARB_framebuffer_object
)
4323 && !_mesa_is_gles3(ctx
)) {
4324 goto invalid_pname_enum
;
4326 else if (att
->Texture
) {
4327 const struct gl_texture_image
*texImage
=
4328 _mesa_select_tex_image(att
->Texture
, att
->Texture
->Target
,
4331 *params
= get_component_bits(pname
, texImage
->_BaseFormat
,
4332 texImage
->TexFormat
);
4338 else if (att
->Renderbuffer
) {
4339 *params
= get_component_bits(pname
, att
->Renderbuffer
->_BaseFormat
,
4340 att
->Renderbuffer
->Format
);
4343 assert(att
->Type
== GL_NONE
);
4344 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4345 _mesa_enum_to_string(pname
));
4348 case GL_FRAMEBUFFER_ATTACHMENT_LAYERED
:
4349 if (!_mesa_has_geometry_shaders(ctx
)) {
4350 goto invalid_pname_enum
;
4351 } else if (att
->Type
== GL_TEXTURE
) {
4352 *params
= att
->Layered
;
4353 } else if (att
->Type
== GL_NONE
) {
4354 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4355 _mesa_enum_to_string(pname
));
4357 goto invalid_pname_enum
;
4361 goto invalid_pname_enum
;
4367 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname %s)", caller
,
4368 _mesa_enum_to_string(pname
));
4374 _mesa_GetFramebufferAttachmentParameteriv(GLenum target
, GLenum attachment
,
4375 GLenum pname
, GLint
*params
)
4377 GET_CURRENT_CONTEXT(ctx
);
4378 struct gl_framebuffer
*buffer
;
4380 buffer
= get_framebuffer_target(ctx
, target
);
4382 _mesa_error(ctx
, GL_INVALID_ENUM
,
4383 "glGetFramebufferAttachmentParameteriv(invalid target %s)",
4384 _mesa_enum_to_string(target
));
4388 get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
4390 "glGetFramebufferAttachmentParameteriv");
4395 _mesa_GetNamedFramebufferAttachmentParameteriv(GLuint framebuffer
,
4397 GLenum pname
, GLint
*params
)
4399 GET_CURRENT_CONTEXT(ctx
);
4400 struct gl_framebuffer
*buffer
;
4403 buffer
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4404 "glGetNamedFramebufferAttachmentParameteriv");
4410 * Section 9.2 Binding and Managing Framebuffer Objects of the OpenGL
4411 * 4.5 core spec (30.10.2014, PDF page 314):
4412 * "If framebuffer is zero, then the default draw framebuffer is
4415 buffer
= ctx
->WinSysDrawBuffer
;
4418 get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
4420 "glGetNamedFramebufferAttachmentParameteriv");
4425 _mesa_NamedFramebufferParameteri(GLuint framebuffer
, GLenum pname
,
4428 GET_CURRENT_CONTEXT(ctx
);
4429 struct gl_framebuffer
*fb
= NULL
;
4431 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
4432 !ctx
->Extensions
.ARB_sample_locations
) {
4433 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4434 "glNamedFramebufferParameteri("
4435 "neither ARB_framebuffer_no_attachments nor "
4436 "ARB_sample_locations is available)");
4441 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4442 "glNamedFramebufferParameteri");
4444 fb
= ctx
->WinSysDrawBuffer
;
4448 framebuffer_parameteri(ctx
, fb
, pname
, param
,
4449 "glNamedFramebufferParameteriv");
4455 _mesa_GetNamedFramebufferParameteriv(GLuint framebuffer
, GLenum pname
,
4458 GET_CURRENT_CONTEXT(ctx
);
4459 struct gl_framebuffer
*fb
;
4461 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
4462 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4463 "glNamedFramebufferParameteriv("
4464 "neither ARB_framebuffer_no_attachments nor ARB_sample_locations"
4470 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4471 "glGetNamedFramebufferParameteriv");
4473 fb
= ctx
->WinSysDrawBuffer
;
4476 get_framebuffer_parameteriv(ctx
, fb
, pname
, param
,
4477 "glGetNamedFramebufferParameteriv");
4483 invalidate_framebuffer_storage(struct gl_context
*ctx
,
4484 struct gl_framebuffer
*fb
,
4485 GLsizei numAttachments
,
4486 const GLenum
*attachments
, GLint x
, GLint y
,
4487 GLsizei width
, GLsizei height
, const char *name
)
4491 /* Section 17.4 Whole Framebuffer Operations of the OpenGL 4.5 Core
4492 * Spec (2.2.2015, PDF page 522) says:
4493 * "An INVALID_VALUE error is generated if numAttachments, width, or
4494 * height is negative."
4496 if (numAttachments
< 0) {
4497 _mesa_error(ctx
, GL_INVALID_VALUE
,
4498 "%s(numAttachments < 0)", name
);
4503 _mesa_error(ctx
, GL_INVALID_VALUE
,
4504 "%s(width < 0)", name
);
4509 _mesa_error(ctx
, GL_INVALID_VALUE
,
4510 "%s(height < 0)", name
);
4514 /* The GL_ARB_invalidate_subdata spec says:
4516 * "If an attachment is specified that does not exist in the
4517 * framebuffer bound to <target>, it is ignored."
4521 * "If <attachments> contains COLOR_ATTACHMENTm and m is greater than
4522 * or equal to the value of MAX_COLOR_ATTACHMENTS, then the error
4523 * INVALID_OPERATION is generated."
4525 * No mention is made of GL_AUXi being out of range. Therefore, we allow
4526 * any enum that can be allowed by the API (OpenGL ES 3.0 has a different
4527 * set of retrictions).
4529 for (i
= 0; i
< numAttachments
; i
++) {
4530 if (_mesa_is_winsys_fbo(fb
)) {
4531 switch (attachments
[i
]) {
4537 /* Accumulation buffers and auxilary buffers were removed in
4538 * OpenGL 3.1, and they never existed in OpenGL ES.
4540 if (ctx
->API
!= API_OPENGL_COMPAT
)
4550 case GL_FRONT_RIGHT
:
4551 if (!_mesa_is_desktop_gl(ctx
))
4558 switch (attachments
[i
]) {
4559 case GL_DEPTH_ATTACHMENT
:
4560 case GL_STENCIL_ATTACHMENT
:
4562 case GL_DEPTH_STENCIL_ATTACHMENT
:
4563 /* GL_DEPTH_STENCIL_ATTACHMENT is a valid attachment point only
4564 * in desktop and ES 3.0 profiles. Note that OES_packed_depth_stencil
4565 * extension does not make this attachment point valid on ES 2.0.
4567 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
))
4570 case GL_COLOR_ATTACHMENT0
:
4571 case GL_COLOR_ATTACHMENT1
:
4572 case GL_COLOR_ATTACHMENT2
:
4573 case GL_COLOR_ATTACHMENT3
:
4574 case GL_COLOR_ATTACHMENT4
:
4575 case GL_COLOR_ATTACHMENT5
:
4576 case GL_COLOR_ATTACHMENT6
:
4577 case GL_COLOR_ATTACHMENT7
:
4578 case GL_COLOR_ATTACHMENT8
:
4579 case GL_COLOR_ATTACHMENT9
:
4580 case GL_COLOR_ATTACHMENT10
:
4581 case GL_COLOR_ATTACHMENT11
:
4582 case GL_COLOR_ATTACHMENT12
:
4583 case GL_COLOR_ATTACHMENT13
:
4584 case GL_COLOR_ATTACHMENT14
:
4585 case GL_COLOR_ATTACHMENT15
: {
4586 unsigned k
= attachments
[i
] - GL_COLOR_ATTACHMENT0
;
4587 if (k
>= ctx
->Const
.MaxColorAttachments
) {
4588 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4589 "%s(attachment >= max. color attachments)", name
);
4600 /* We don't actually do anything for this yet. Just return after
4601 * validating the parameters and generating the required errors.
4606 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", name
,
4607 _mesa_enum_to_string(attachments
[i
]));
4613 _mesa_InvalidateSubFramebuffer_no_error(GLenum target
, GLsizei numAttachments
,
4614 const GLenum
*attachments
, GLint x
,
4615 GLint y
, GLsizei width
, GLsizei height
)
4622 _mesa_InvalidateSubFramebuffer(GLenum target
, GLsizei numAttachments
,
4623 const GLenum
*attachments
, GLint x
, GLint y
,
4624 GLsizei width
, GLsizei height
)
4626 struct gl_framebuffer
*fb
;
4627 GET_CURRENT_CONTEXT(ctx
);
4629 fb
= get_framebuffer_target(ctx
, target
);
4631 _mesa_error(ctx
, GL_INVALID_ENUM
,
4632 "glInvalidateSubFramebuffer(invalid target %s)",
4633 _mesa_enum_to_string(target
));
4637 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4638 x
, y
, width
, height
,
4639 "glInvalidateSubFramebuffer");
4644 _mesa_InvalidateNamedFramebufferSubData(GLuint framebuffer
,
4645 GLsizei numAttachments
,
4646 const GLenum
*attachments
,
4648 GLsizei width
, GLsizei height
)
4650 struct gl_framebuffer
*fb
;
4651 GET_CURRENT_CONTEXT(ctx
);
4653 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
4654 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
4655 * default draw framebuffer is affected."
4658 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4659 "glInvalidateNamedFramebufferSubData");
4664 fb
= ctx
->WinSysDrawBuffer
;
4666 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4667 x
, y
, width
, height
,
4668 "glInvalidateNamedFramebufferSubData");
4673 _mesa_InvalidateFramebuffer_no_error(GLenum target
, GLsizei numAttachments
,
4674 const GLenum
*attachments
)
4681 _mesa_InvalidateFramebuffer(GLenum target
, GLsizei numAttachments
,
4682 const GLenum
*attachments
)
4684 struct gl_framebuffer
*fb
;
4685 GET_CURRENT_CONTEXT(ctx
);
4687 fb
= get_framebuffer_target(ctx
, target
);
4689 _mesa_error(ctx
, GL_INVALID_ENUM
,
4690 "glInvalidateFramebuffer(invalid target %s)",
4691 _mesa_enum_to_string(target
));
4695 /* The GL_ARB_invalidate_subdata spec says:
4699 * void InvalidateFramebuffer(enum target,
4700 * sizei numAttachments,
4701 * const enum *attachments);
4703 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
4704 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
4705 * <MAX_VIEWPORT_DIMS[1]> respectively."
4707 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4709 ctx
->Const
.MaxViewportWidth
,
4710 ctx
->Const
.MaxViewportHeight
,
4711 "glInvalidateFramebuffer");
4716 _mesa_InvalidateNamedFramebufferData(GLuint framebuffer
,
4717 GLsizei numAttachments
,
4718 const GLenum
*attachments
)
4720 struct gl_framebuffer
*fb
;
4721 GET_CURRENT_CONTEXT(ctx
);
4723 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
4724 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
4725 * default draw framebuffer is affected."
4728 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4729 "glInvalidateNamedFramebufferData");
4734 fb
= ctx
->WinSysDrawBuffer
;
4736 /* The GL_ARB_invalidate_subdata spec says:
4740 * void InvalidateFramebuffer(enum target,
4741 * sizei numAttachments,
4742 * const enum *attachments);
4744 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
4745 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
4746 * <MAX_VIEWPORT_DIMS[1]> respectively."
4748 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4750 ctx
->Const
.MaxViewportWidth
,
4751 ctx
->Const
.MaxViewportHeight
,
4752 "glInvalidateNamedFramebufferData");
4757 _mesa_DiscardFramebufferEXT(GLenum target
, GLsizei numAttachments
,
4758 const GLenum
*attachments
)
4760 struct gl_framebuffer
*fb
;
4763 GET_CURRENT_CONTEXT(ctx
);
4765 fb
= get_framebuffer_target(ctx
, target
);
4767 _mesa_error(ctx
, GL_INVALID_ENUM
,
4768 "glDiscardFramebufferEXT(target %s)",
4769 _mesa_enum_to_string(target
));
4773 if (numAttachments
< 0) {
4774 _mesa_error(ctx
, GL_INVALID_VALUE
,
4775 "glDiscardFramebufferEXT(numAttachments < 0)");
4779 for (i
= 0; i
< numAttachments
; i
++) {
4780 switch (attachments
[i
]) {
4784 if (_mesa_is_user_fbo(fb
))
4787 case GL_COLOR_ATTACHMENT0
:
4788 case GL_DEPTH_ATTACHMENT
:
4789 case GL_STENCIL_ATTACHMENT
:
4790 if (_mesa_is_winsys_fbo(fb
))
4798 if (ctx
->Driver
.DiscardFramebuffer
)
4799 ctx
->Driver
.DiscardFramebuffer(ctx
, target
, numAttachments
, attachments
);
4804 _mesa_error(ctx
, GL_INVALID_ENUM
,
4805 "glDiscardFramebufferEXT(attachment %s)",
4806 _mesa_enum_to_string(attachments
[i
]));
4810 sample_locations(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
4811 GLuint start
, GLsizei count
, const GLfloat
*v
, bool no_error
,
4817 if (!ctx
->Extensions
.ARB_sample_locations
) {
4818 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4820 "(ARB_sample_locations not available)", name
);
4824 if (start
+ count
> MAX_SAMPLE_LOCATION_TABLE_SIZE
) {
4825 _mesa_error(ctx
, GL_INVALID_VALUE
,
4826 "%s(start+size > sample location table size)", name
);
4831 if (!fb
->SampleLocationTable
) {
4832 size_t size
= MAX_SAMPLE_LOCATION_TABLE_SIZE
* 2 * sizeof(GLfloat
);
4833 fb
->SampleLocationTable
= malloc(size
);
4834 if (!fb
->SampleLocationTable
) {
4835 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
4836 "Cannot allocate sample location table");
4839 for (i
= 0; i
< MAX_SAMPLE_LOCATION_TABLE_SIZE
* 2; i
++)
4840 fb
->SampleLocationTable
[i
] = 0.5f
;
4843 for (i
= 0; i
< count
* 2; i
++) {
4844 /* The ARB_sample_locations spec says:
4846 * Sample locations outside of [0,1] result in undefined
4849 * To simplify driver implementations, we choose to clamp to
4850 * [0,1] and change NaN into 0.5.
4852 if (isnan(v
[i
]) || v
[i
] < 0.0f
|| v
[i
] > 1.0f
) {
4853 static GLuint msg_id
= 0;
4854 static const char* msg
= "Invalid sample location specified";
4855 _mesa_debug_get_id(&msg_id
);
4857 _mesa_log_msg(ctx
, MESA_DEBUG_SOURCE_API
, MESA_DEBUG_TYPE_UNDEFINED
,
4858 msg_id
, MESA_DEBUG_SEVERITY_HIGH
, strlen(msg
), msg
);
4862 fb
->SampleLocationTable
[start
* 2 + i
] = 0.5f
;
4864 fb
->SampleLocationTable
[start
* 2 + i
] = CLAMP(v
[i
], 0.0f
, 1.0f
);
4867 if (fb
== ctx
->DrawBuffer
)
4868 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleLocations
;
4872 _mesa_FramebufferSampleLocationsfvARB(GLenum target
, GLuint start
,
4873 GLsizei count
, const GLfloat
*v
)
4875 struct gl_framebuffer
*fb
;
4877 GET_CURRENT_CONTEXT(ctx
);
4879 fb
= get_framebuffer_target(ctx
, target
);
4881 _mesa_error(ctx
, GL_INVALID_ENUM
,
4882 "glFramebufferSampleLocationsfvARB(target %s)",
4883 _mesa_enum_to_string(target
));
4887 sample_locations(ctx
, fb
, start
, count
, v
, false,
4888 "glFramebufferSampleLocationsfvARB");
4892 _mesa_NamedFramebufferSampleLocationsfvARB(GLuint framebuffer
, GLuint start
,
4893 GLsizei count
, const GLfloat
*v
)
4895 struct gl_framebuffer
*fb
;
4897 GET_CURRENT_CONTEXT(ctx
);
4900 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4901 "glNamedFramebufferSampleLocationsfvARB");
4906 fb
= ctx
->WinSysDrawBuffer
;
4908 sample_locations(ctx
, fb
, start
, count
, v
, false,
4909 "glNamedFramebufferSampleLocationsfvARB");
4913 _mesa_FramebufferSampleLocationsfvARB_no_error(GLenum target
, GLuint start
,
4914 GLsizei count
, const GLfloat
*v
)
4916 GET_CURRENT_CONTEXT(ctx
);
4917 sample_locations(ctx
, get_framebuffer_target(ctx
, target
), start
,
4918 count
, v
, true, "glFramebufferSampleLocationsfvARB");
4922 _mesa_NamedFramebufferSampleLocationsfvARB_no_error(GLuint framebuffer
,
4923 GLuint start
, GLsizei count
,
4926 GET_CURRENT_CONTEXT(ctx
);
4927 sample_locations(ctx
, _mesa_lookup_framebuffer(ctx
, framebuffer
), start
,
4928 count
, v
, true, "glNamedFramebufferSampleLocationsfvARB");
4932 _mesa_EvaluateDepthValuesARB(void)
4934 GET_CURRENT_CONTEXT(ctx
);
4936 if (!ctx
->Extensions
.ARB_sample_locations
) {
4937 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4938 "EvaluateDepthValuesARB not supported (neither "
4939 "ARB_sample_locations nor NV_sample_locations is available)");
4943 if (ctx
->Driver
.EvaluateDepthValues
)
4944 ctx
->Driver
.EvaluateDepthValues(ctx
);