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
, GLsizei samples
,
501 GLuint layer
, GLboolean layered
)
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
->NumSamples
= samples
;
524 att
->CubeMapFace
= _mesa_tex_target_to_face(texTarget
);
525 att
->Zoffset
= layer
;
526 att
->Layered
= layered
;
527 att
->Complete
= GL_FALSE
;
529 _mesa_update_texture_renderbuffer(ctx
, fb
, att
);
534 * Bind a renderbuffer to an attachment point.
535 * The previous binding, if any, will be removed first.
538 set_renderbuffer_attachment(struct gl_context
*ctx
,
539 struct gl_renderbuffer_attachment
*att
,
540 struct gl_renderbuffer
*rb
)
542 /* XXX check if re-doing same attachment, exit early */
543 remove_attachment(ctx
, att
);
544 att
->Type
= GL_RENDERBUFFER_EXT
;
545 att
->Texture
= NULL
; /* just to be safe */
546 att
->Layered
= GL_FALSE
;
547 att
->Complete
= GL_FALSE
;
548 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
553 * Fallback for ctx->Driver.FramebufferRenderbuffer()
554 * Attach a renderbuffer object to a framebuffer object.
557 _mesa_FramebufferRenderbuffer_sw(struct gl_context
*ctx
,
558 struct gl_framebuffer
*fb
,
560 struct gl_renderbuffer
*rb
)
562 struct gl_renderbuffer_attachment
*att
;
564 simple_mtx_lock(&fb
->Mutex
);
566 att
= get_attachment(ctx
, fb
, attachment
, NULL
);
569 set_renderbuffer_attachment(ctx
, att
, rb
);
570 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
571 /* do stencil attachment here (depth already done above) */
572 att
= get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
, NULL
);
574 set_renderbuffer_attachment(ctx
, att
, rb
);
576 rb
->AttachedAnytime
= GL_TRUE
;
579 remove_attachment(ctx
, att
);
580 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
581 /* detach stencil (depth was detached above) */
582 att
= get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
, NULL
);
584 remove_attachment(ctx
, att
);
588 invalidate_framebuffer(fb
);
590 simple_mtx_unlock(&fb
->Mutex
);
595 * Fallback for ctx->Driver.ValidateFramebuffer()
596 * Check if the renderbuffer's formats are supported by the software
598 * Drivers should probably override this.
601 _mesa_validate_framebuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
604 for (buf
= 0; buf
< BUFFER_COUNT
; buf
++) {
605 const struct gl_renderbuffer
*rb
= fb
->Attachment
[buf
].Renderbuffer
;
607 switch (rb
->_BaseFormat
) {
609 case GL_LUMINANCE_ALPHA
:
614 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
618 switch (rb
->Format
) {
619 /* XXX This list is likely incomplete. */
620 case MESA_FORMAT_R9G9B9E5_FLOAT
:
621 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
624 /* render buffer format is supported by software rendering */
633 * Return true if the framebuffer has a combined depth/stencil
634 * renderbuffer attached.
637 _mesa_has_depthstencil_combined(const struct gl_framebuffer
*fb
)
639 const struct gl_renderbuffer_attachment
*depth
=
640 &fb
->Attachment
[BUFFER_DEPTH
];
641 const struct gl_renderbuffer_attachment
*stencil
=
642 &fb
->Attachment
[BUFFER_STENCIL
];
644 if (depth
->Type
== stencil
->Type
) {
645 if (depth
->Type
== GL_RENDERBUFFER_EXT
&&
646 depth
->Renderbuffer
== stencil
->Renderbuffer
)
649 if (depth
->Type
== GL_TEXTURE
&&
650 depth
->Texture
== stencil
->Texture
)
662 att_incomplete(const char *msg
)
664 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
665 _mesa_debug(NULL
, "attachment incomplete: %s\n", msg
);
674 fbo_incomplete(struct gl_context
*ctx
, const char *msg
, int index
)
676 static GLuint msg_id
;
678 _mesa_gl_debug(ctx
, &msg_id
,
679 MESA_DEBUG_SOURCE_API
,
680 MESA_DEBUG_TYPE_OTHER
,
681 MESA_DEBUG_SEVERITY_MEDIUM
,
682 "FBO incomplete: %s [%d]\n", msg
, index
);
684 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
685 _mesa_debug(NULL
, "FBO Incomplete: %s [%d]\n", msg
, index
);
691 * Is the given base format a legal format for a color renderbuffer?
694 _mesa_is_legal_color_format(const struct gl_context
*ctx
, GLenum baseFormat
)
696 switch (baseFormat
) {
701 case GL_LUMINANCE_ALPHA
:
704 return ctx
->API
== API_OPENGL_COMPAT
&&
705 ctx
->Extensions
.ARB_framebuffer_object
;
708 return ctx
->Extensions
.ARB_texture_rg
;
716 * Is the given base format a legal format for a color renderbuffer?
719 is_format_color_renderable(const struct gl_context
*ctx
, mesa_format format
,
720 GLenum internalFormat
)
722 const GLenum baseFormat
=
723 _mesa_get_format_base_format(format
);
726 valid
= _mesa_is_legal_color_format(ctx
, baseFormat
);
727 if (!valid
|| _mesa_is_desktop_gl(ctx
)) {
731 /* Reject additional cases for GLES */
732 switch (internalFormat
) {
736 return _mesa_has_EXT_render_snorm(ctx
);
739 case GL_RGBA16_SNORM
:
740 return _mesa_has_EXT_texture_norm16(ctx
) &&
741 _mesa_has_EXT_render_snorm(ctx
);
760 if (internalFormat
!= GL_RGB10_A2
&&
761 (format
== MESA_FORMAT_B10G10R10A2_UNORM
||
762 format
== MESA_FORMAT_B10G10R10X2_UNORM
||
763 format
== MESA_FORMAT_R10G10B10A2_UNORM
||
764 format
== MESA_FORMAT_R10G10B10X2_UNORM
)) {
773 * Is the given base format a legal format for a depth/stencil renderbuffer?
776 is_legal_depth_format(const struct gl_context
*ctx
, GLenum baseFormat
)
778 switch (baseFormat
) {
779 case GL_DEPTH_COMPONENT
:
780 case GL_DEPTH_STENCIL_EXT
:
789 * Test if an attachment point is complete and update its Complete field.
790 * \param format if GL_COLOR, this is a color attachment point,
791 * if GL_DEPTH, this is a depth component attachment point,
792 * if GL_STENCIL, this is a stencil component attachment point.
795 test_attachment_completeness(const struct gl_context
*ctx
, GLenum format
,
796 struct gl_renderbuffer_attachment
*att
)
798 assert(format
== GL_COLOR
|| format
== GL_DEPTH
|| format
== GL_STENCIL
);
800 /* assume complete */
801 att
->Complete
= GL_TRUE
;
803 /* Look for reasons why the attachment might be incomplete */
804 if (att
->Type
== GL_TEXTURE
) {
805 const struct gl_texture_object
*texObj
= att
->Texture
;
806 const struct gl_texture_image
*texImage
;
810 att_incomplete("no texobj");
811 att
->Complete
= GL_FALSE
;
815 texImage
= texObj
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
817 att_incomplete("no teximage");
818 att
->Complete
= GL_FALSE
;
821 if (texImage
->Width
< 1 || texImage
->Height
< 1) {
822 att_incomplete("teximage width/height=0");
823 att
->Complete
= GL_FALSE
;
827 switch (texObj
->Target
) {
829 if (att
->Zoffset
>= texImage
->Depth
) {
830 att_incomplete("bad z offset");
831 att
->Complete
= GL_FALSE
;
835 case GL_TEXTURE_1D_ARRAY
:
836 if (att
->Zoffset
>= texImage
->Height
) {
837 att_incomplete("bad 1D-array layer");
838 att
->Complete
= GL_FALSE
;
842 case GL_TEXTURE_2D_ARRAY
:
843 if (att
->Zoffset
>= texImage
->Depth
) {
844 att_incomplete("bad 2D-array layer");
845 att
->Complete
= GL_FALSE
;
849 case GL_TEXTURE_CUBE_MAP_ARRAY
:
850 if (att
->Zoffset
>= texImage
->Depth
) {
851 att_incomplete("bad cube-array layer");
852 att
->Complete
= GL_FALSE
;
858 baseFormat
= texImage
->_BaseFormat
;
860 if (format
== GL_COLOR
) {
861 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
862 att_incomplete("bad format");
863 att
->Complete
= GL_FALSE
;
866 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
867 att_incomplete("compressed internalformat");
868 att
->Complete
= GL_FALSE
;
872 /* OES_texture_float allows creation and use of floating point
873 * textures with GL_FLOAT, GL_HALF_FLOAT but it does not allow
874 * these textures to be used as a render target, this is done via
875 * GL_EXT_color_buffer(_half)_float with set of new sized types.
877 if (_mesa_is_gles(ctx
) && (texObj
->_IsFloat
|| texObj
->_IsHalfFloat
)) {
878 att_incomplete("bad internal format");
879 att
->Complete
= GL_FALSE
;
883 else if (format
== GL_DEPTH
) {
884 if (baseFormat
== GL_DEPTH_COMPONENT
) {
887 else if (ctx
->Extensions
.ARB_depth_texture
&&
888 baseFormat
== GL_DEPTH_STENCIL
) {
892 att
->Complete
= GL_FALSE
;
893 att_incomplete("bad depth format");
898 assert(format
== GL_STENCIL
);
899 if (ctx
->Extensions
.ARB_depth_texture
&&
900 baseFormat
== GL_DEPTH_STENCIL
) {
902 } else if (ctx
->Extensions
.ARB_texture_stencil8
&&
903 baseFormat
== GL_STENCIL_INDEX
) {
906 /* no such thing as stencil-only textures */
907 att_incomplete("illegal stencil texture");
908 att
->Complete
= GL_FALSE
;
913 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
914 const GLenum baseFormat
= att
->Renderbuffer
->_BaseFormat
;
916 assert(att
->Renderbuffer
);
917 if (!att
->Renderbuffer
->InternalFormat
||
918 att
->Renderbuffer
->Width
< 1 ||
919 att
->Renderbuffer
->Height
< 1) {
920 att_incomplete("0x0 renderbuffer");
921 att
->Complete
= GL_FALSE
;
924 if (format
== GL_COLOR
) {
925 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
926 att_incomplete("bad renderbuffer color format");
927 att
->Complete
= GL_FALSE
;
931 else if (format
== GL_DEPTH
) {
932 if (baseFormat
== GL_DEPTH_COMPONENT
) {
935 else if (baseFormat
== GL_DEPTH_STENCIL
) {
939 att_incomplete("bad renderbuffer depth format");
940 att
->Complete
= GL_FALSE
;
945 assert(format
== GL_STENCIL
);
946 if (baseFormat
== GL_STENCIL_INDEX
||
947 baseFormat
== GL_DEPTH_STENCIL
) {
951 att
->Complete
= GL_FALSE
;
952 att_incomplete("bad renderbuffer stencil format");
958 assert(att
->Type
== GL_NONE
);
966 * Test if the given framebuffer object is complete and update its
967 * Status field with the results.
968 * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
969 * driver to make hardware-specific validation/completeness checks.
970 * Also update the framebuffer's Width and Height fields if the
971 * framebuffer is complete.
974 _mesa_test_framebuffer_completeness(struct gl_context
*ctx
,
975 struct gl_framebuffer
*fb
)
978 GLenum intFormat
= GL_NONE
; /* color buffers' internal format */
979 GLuint minWidth
= ~0, minHeight
= ~0, maxWidth
= 0, maxHeight
= 0;
980 GLint numColorSamples
= -1;
981 GLint numColorStorageSamples
= -1;
982 GLint numDepthSamples
= -1;
983 GLint fixedSampleLocations
= -1;
986 /* Covers max_layer_count, is_layered, and layer_tex_target */
987 bool layer_info_valid
= false;
988 GLuint max_layer_count
= 0, att_layer_count
;
989 bool is_layered
= false;
990 GLenum layer_tex_target
= 0;
991 bool has_depth_attachment
= false;
992 bool has_stencil_attachment
= false;
994 assert(_mesa_is_user_fbo(fb
));
996 /* we're changing framebuffer fields here */
997 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1002 fb
->_AllColorBuffersFixedPoint
= GL_TRUE
;
1003 fb
->_HasSNormOrFloatColorBuffer
= GL_FALSE
;
1004 fb
->_HasAttachments
= true;
1005 fb
->_IntegerBuffers
= 0;
1006 fb
->_RGBBuffers
= 0;
1008 /* Start at -2 to more easily loop over all attachment points.
1010 * -1: stencil buffer
1013 for (i
= -2; i
< (GLint
) ctx
->Const
.MaxColorAttachments
; i
++) {
1014 struct gl_renderbuffer_attachment
*att
;
1016 mesa_format attFormat
;
1017 GLenum att_tex_target
= GL_NONE
;
1020 * XXX for ARB_fbo, only check color buffers that are named by
1021 * GL_READ_BUFFER and GL_DRAW_BUFFERi.
1024 /* check for attachment completeness
1027 att
= &fb
->Attachment
[BUFFER_DEPTH
];
1028 test_attachment_completeness(ctx
, GL_DEPTH
, att
);
1029 if (!att
->Complete
) {
1030 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1031 fbo_incomplete(ctx
, "depth attachment incomplete", -1);
1033 } else if (att
->Type
!= GL_NONE
) {
1034 has_depth_attachment
= true;
1038 att
= &fb
->Attachment
[BUFFER_STENCIL
];
1039 test_attachment_completeness(ctx
, GL_STENCIL
, att
);
1040 if (!att
->Complete
) {
1041 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1042 fbo_incomplete(ctx
, "stencil attachment incomplete", -1);
1044 } else if (att
->Type
!= GL_NONE
) {
1045 has_stencil_attachment
= true;
1049 att
= &fb
->Attachment
[BUFFER_COLOR0
+ i
];
1050 test_attachment_completeness(ctx
, GL_COLOR
, att
);
1051 if (!att
->Complete
) {
1052 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1053 fbo_incomplete(ctx
, "color attachment incomplete", i
);
1058 /* get width, height, format of the renderbuffer/texture
1060 unsigned attNumSamples
, attNumStorageSamples
;
1062 if (att
->Type
== GL_TEXTURE
) {
1063 const struct gl_texture_image
*texImg
= att
->Renderbuffer
->TexImage
;
1064 att_tex_target
= att
->Texture
->Target
;
1065 minWidth
= MIN2(minWidth
, texImg
->Width
);
1066 maxWidth
= MAX2(maxWidth
, texImg
->Width
);
1067 minHeight
= MIN2(minHeight
, texImg
->Height
);
1068 maxHeight
= MAX2(maxHeight
, texImg
->Height
);
1069 f
= texImg
->_BaseFormat
;
1070 attFormat
= texImg
->TexFormat
;
1073 if (!is_format_color_renderable(ctx
, attFormat
,
1074 texImg
->InternalFormat
) &&
1075 !is_legal_depth_format(ctx
, f
) &&
1076 f
!= GL_STENCIL_INDEX
) {
1077 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT
;
1078 fbo_incomplete(ctx
, "texture attachment incomplete", -1);
1082 if (fixedSampleLocations
< 0)
1083 fixedSampleLocations
= texImg
->FixedSampleLocations
;
1084 else if (fixedSampleLocations
!= texImg
->FixedSampleLocations
) {
1085 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1086 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1090 if (att
->NumSamples
> 0)
1091 attNumSamples
= att
->NumSamples
;
1093 attNumSamples
= texImg
->NumSamples
;
1094 attNumStorageSamples
= attNumSamples
;
1096 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
1097 minWidth
= MIN2(minWidth
, att
->Renderbuffer
->Width
);
1098 maxWidth
= MAX2(minWidth
, att
->Renderbuffer
->Width
);
1099 minHeight
= MIN2(minHeight
, att
->Renderbuffer
->Height
);
1100 maxHeight
= MAX2(minHeight
, att
->Renderbuffer
->Height
);
1101 f
= att
->Renderbuffer
->InternalFormat
;
1102 attFormat
= att
->Renderbuffer
->Format
;
1105 /* RENDERBUFFER has fixedSampleLocations implicitly true */
1106 if (fixedSampleLocations
< 0)
1107 fixedSampleLocations
= GL_TRUE
;
1108 else if (fixedSampleLocations
!= GL_TRUE
) {
1109 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1110 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1114 attNumSamples
= att
->Renderbuffer
->NumSamples
;
1115 attNumStorageSamples
= att
->Renderbuffer
->NumStorageSamples
;
1118 assert(att
->Type
== GL_NONE
);
1123 /* Color buffers. */
1124 if (numColorSamples
< 0) {
1125 assert(numColorStorageSamples
< 0);
1126 numColorSamples
= attNumSamples
;
1127 numColorStorageSamples
= attNumStorageSamples
;
1128 } else if (numColorSamples
!= attNumSamples
||
1129 numColorStorageSamples
!= attNumStorageSamples
) {
1130 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1131 fbo_incomplete(ctx
, "inconsistent sample counts", -1);
1135 /* Depth/stencil buffers. */
1136 if (numDepthSamples
< 0) {
1137 numDepthSamples
= attNumSamples
;
1138 } else if (numDepthSamples
!= attNumSamples
) {
1139 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1140 fbo_incomplete(ctx
, "inconsistent sample counts", -1);
1145 /* Update flags describing color buffer datatypes */
1147 GLenum type
= _mesa_get_format_datatype(attFormat
);
1149 /* check if integer color */
1150 if (_mesa_is_format_integer_color(attFormat
))
1151 fb
->_IntegerBuffers
|= (1 << i
);
1154 fb
->_RGBBuffers
|= (1 << i
);
1156 fb
->_AllColorBuffersFixedPoint
=
1157 fb
->_AllColorBuffersFixedPoint
&&
1158 (type
== GL_UNSIGNED_NORMALIZED
|| type
== GL_SIGNED_NORMALIZED
);
1160 fb
->_HasSNormOrFloatColorBuffer
=
1161 fb
->_HasSNormOrFloatColorBuffer
||
1162 type
== GL_SIGNED_NORMALIZED
|| type
== GL_FLOAT
;
1165 /* Error-check width, height, format */
1166 if (numImages
== 1) {
1173 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
1174 /* check that width, height, format are same */
1175 if (minWidth
!= maxWidth
|| minHeight
!= maxHeight
) {
1176 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
;
1177 fbo_incomplete(ctx
, "width or height mismatch", -1);
1180 /* check that all color buffers are the same format */
1181 if (intFormat
!= GL_NONE
&& f
!= intFormat
) {
1182 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
1183 fbo_incomplete(ctx
, "format mismatch", -1);
1189 /* Check that the format is valid. (MESA_FORMAT_NONE means unsupported)
1191 if (att
->Type
== GL_RENDERBUFFER
&&
1192 att
->Renderbuffer
->Format
== MESA_FORMAT_NONE
) {
1193 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1194 fbo_incomplete(ctx
, "unsupported renderbuffer format", i
);
1198 /* Check that layered rendering is consistent. */
1200 if (att_tex_target
== GL_TEXTURE_CUBE_MAP
)
1201 att_layer_count
= 6;
1202 else if (att_tex_target
== GL_TEXTURE_1D_ARRAY
)
1203 att_layer_count
= att
->Renderbuffer
->Height
;
1205 att_layer_count
= att
->Renderbuffer
->Depth
;
1207 att_layer_count
= 0;
1209 if (!layer_info_valid
) {
1210 is_layered
= att
->Layered
;
1211 max_layer_count
= att_layer_count
;
1212 layer_tex_target
= att_tex_target
;
1213 layer_info_valid
= true;
1214 } else if (max_layer_count
> 0 && layer_tex_target
!= att_tex_target
) {
1215 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1216 fbo_incomplete(ctx
, "layered framebuffer has mismatched targets", i
);
1218 } else if (is_layered
!= att
->Layered
) {
1219 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1221 "framebuffer attachment layer mode is inconsistent",
1224 } else if (att_layer_count
> max_layer_count
) {
1225 max_layer_count
= att_layer_count
;
1229 * The extension GL_ARB_framebuffer_no_attachments places additional
1230 * requirement on each attachment. Those additional requirements are
1231 * tighter that those of previous versions of GL. In interest of better
1232 * compatibility, we will not enforce these restrictions. For the record
1233 * those additional restrictions are quoted below:
1235 * "The width and height of image are greater than zero and less than or
1236 * equal to the values of the implementation-dependent limits
1237 * MAX_FRAMEBUFFER_WIDTH and MAX_FRAMEBUFFER_HEIGHT, respectively."
1239 * "If <image> is a three-dimensional texture or a one- or two-dimensional
1240 * array texture and the attachment is layered, the depth or layer count
1241 * of the texture is less than or equal to the implementation-dependent
1242 * limit MAX_FRAMEBUFFER_LAYERS."
1244 * "If image has multiple samples, its sample count is less than or equal
1245 * to the value of the implementation-dependent limit
1246 * MAX_FRAMEBUFFER_SAMPLES."
1248 * The same requirements are also in place for GL 4.5,
1249 * Section 9.4.1 "Framebuffer Attachment Completeness", pg 310-311
1253 if (ctx
->Extensions
.AMD_framebuffer_multisample_advanced
) {
1254 /* See if non-matching sample counts are supported. */
1255 if (numColorSamples
>= 0 && numDepthSamples
>= 0) {
1258 assert(numColorStorageSamples
!= -1);
1260 numColorSamples
= MAX2(numColorSamples
, 1);
1261 numColorStorageSamples
= MAX2(numColorStorageSamples
, 1);
1262 numDepthSamples
= MAX2(numDepthSamples
, 1);
1264 if (numColorSamples
== 1 && numColorStorageSamples
== 1 &&
1265 numDepthSamples
== 1) {
1268 for (i
= 0; i
< ctx
->Const
.NumSupportedMultisampleModes
; i
++) {
1270 &ctx
->Const
.SupportedMultisampleModes
[i
].NumColorSamples
;
1272 if (counts
[0] == numColorSamples
&&
1273 counts
[1] == numColorStorageSamples
&&
1274 counts
[2] == numDepthSamples
) {
1282 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1283 fbo_incomplete(ctx
, "unsupported sample counts", -1);
1288 /* If the extension is unsupported, all sample counts must be equal. */
1289 if (numColorSamples
>= 0 &&
1290 (numColorSamples
!= numColorStorageSamples
||
1291 (numDepthSamples
>= 0 && numColorSamples
!= numDepthSamples
))) {
1292 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1293 fbo_incomplete(ctx
, "inconsistent sample counts", -1);
1298 fb
->MaxNumLayers
= max_layer_count
;
1300 if (numImages
== 0) {
1301 fb
->_HasAttachments
= false;
1303 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
1304 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1305 fbo_incomplete(ctx
, "no attachments", -1);
1309 if (fb
->DefaultGeometry
.Width
== 0 || fb
->DefaultGeometry
.Height
== 0) {
1310 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1311 fbo_incomplete(ctx
, "no attachments and default width or height is 0", -1);
1316 if (_mesa_is_desktop_gl(ctx
) && !ctx
->Extensions
.ARB_ES2_compatibility
) {
1317 /* Check that all DrawBuffers are present */
1318 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
1319 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
1320 const struct gl_renderbuffer_attachment
*att
1321 = get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
], NULL
);
1323 if (att
->Type
== GL_NONE
) {
1324 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
1325 fbo_incomplete(ctx
, "missing drawbuffer", j
);
1331 /* Check that the ReadBuffer is present */
1332 if (fb
->ColorReadBuffer
!= GL_NONE
) {
1333 const struct gl_renderbuffer_attachment
*att
1334 = get_attachment(ctx
, fb
, fb
->ColorReadBuffer
, NULL
);
1336 if (att
->Type
== GL_NONE
) {
1337 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
1338 fbo_incomplete(ctx
, "missing readbuffer", -1);
1344 /* The OpenGL ES3 spec, in chapter 9.4. FRAMEBUFFER COMPLETENESS, says:
1346 * "Depth and stencil attachments, if present, are the same image."
1348 * This restriction is not present in the OpenGL ES2 spec.
1350 if (_mesa_is_gles3(ctx
) &&
1351 has_stencil_attachment
&& has_depth_attachment
&&
1352 !_mesa_has_depthstencil_combined(fb
)) {
1353 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1354 fbo_incomplete(ctx
, "Depth and stencil attachments must be the same image", -1);
1358 /* Provisionally set status = COMPLETE ... */
1359 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
1361 /* ... but the driver may say the FB is incomplete.
1362 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
1365 if (ctx
->Driver
.ValidateFramebuffer
) {
1366 ctx
->Driver
.ValidateFramebuffer(ctx
, fb
);
1367 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1368 fbo_incomplete(ctx
, "driver marked FBO as incomplete", -1);
1374 * Note that if ARB_framebuffer_object is supported and the attached
1375 * renderbuffers/textures are different sizes, the framebuffer
1376 * width/height will be set to the smallest width/height.
1378 if (numImages
!= 0) {
1379 fb
->Width
= minWidth
;
1380 fb
->Height
= minHeight
;
1383 /* finally, update the visual info for the framebuffer */
1384 _mesa_update_framebuffer_visual(ctx
, fb
);
1388 GLboolean GLAPIENTRY
1389 _mesa_IsRenderbuffer(GLuint renderbuffer
)
1391 struct gl_renderbuffer
*rb
;
1393 GET_CURRENT_CONTEXT(ctx
);
1395 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1397 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1398 return rb
!= NULL
&& rb
!= &DummyRenderbuffer
;
1402 static struct gl_renderbuffer
*
1403 allocate_renderbuffer_locked(struct gl_context
*ctx
, GLuint renderbuffer
,
1406 struct gl_renderbuffer
*newRb
;
1408 /* create new renderbuffer object */
1409 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
1411 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
1414 assert(newRb
->AllocStorage
);
1415 _mesa_HashInsertLocked(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
1422 bind_renderbuffer(GLenum target
, GLuint renderbuffer
)
1424 struct gl_renderbuffer
*newRb
;
1425 GET_CURRENT_CONTEXT(ctx
);
1427 if (target
!= GL_RENDERBUFFER_EXT
) {
1428 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindRenderbufferEXT(target)");
1432 /* No need to flush here since the render buffer binding has no
1433 * effect on rendering state.
1437 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1438 if (newRb
== &DummyRenderbuffer
) {
1439 /* ID was reserved, but no real renderbuffer object made yet */
1442 else if (!newRb
&& ctx
->API
== API_OPENGL_CORE
) {
1443 /* All RB IDs must be Gen'd */
1444 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1445 "glBindRenderbuffer(non-gen name)");
1450 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
1451 newRb
= allocate_renderbuffer_locked(ctx
, renderbuffer
,
1452 "glBindRenderbufferEXT");
1453 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
1460 assert(newRb
!= &DummyRenderbuffer
);
1462 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
1466 _mesa_BindRenderbuffer(GLenum target
, GLuint renderbuffer
)
1468 /* OpenGL ES glBindRenderbuffer and glBindRenderbufferOES use this same
1469 * entry point, but they allow the use of user-generated names.
1471 bind_renderbuffer(target
, renderbuffer
);
1475 _mesa_BindRenderbufferEXT(GLenum target
, GLuint renderbuffer
)
1477 bind_renderbuffer(target
, renderbuffer
);
1481 * ARB_framebuffer_no_attachment and ARB_sample_locations - Application passes
1482 * requested param's here. NOTE: NumSamples requested need not be _NumSamples
1483 * which is what the hw supports.
1486 framebuffer_parameteri(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1487 GLenum pname
, GLint param
, const char *func
)
1489 bool cannot_be_winsys_fbo
= false;
1492 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1493 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1494 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1495 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1496 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1497 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
)
1498 goto invalid_pname_enum
;
1499 cannot_be_winsys_fbo
= true;
1501 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1502 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1503 if (!ctx
->Extensions
.ARB_sample_locations
)
1504 goto invalid_pname_enum
;
1506 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1507 if (!ctx
->Extensions
.MESA_framebuffer_flip_y
)
1508 goto invalid_pname_enum
;
1509 cannot_be_winsys_fbo
= true;
1512 goto invalid_pname_enum
;
1515 if (cannot_be_winsys_fbo
&& _mesa_is_winsys_fbo(fb
)) {
1516 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1517 "%s(invalid pname=0x%x for default framebuffer)", func
, pname
);
1522 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1523 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferWidth
)
1524 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1526 fb
->DefaultGeometry
.Width
= param
;
1528 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1529 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferHeight
)
1530 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1532 fb
->DefaultGeometry
.Height
= param
;
1534 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1536 * According to the OpenGL ES 3.1 specification section 9.2.1, the
1537 * GL_FRAMEBUFFER_DEFAULT_LAYERS parameter name is not supported.
1539 if (_mesa_is_gles31(ctx
) && !ctx
->Extensions
.OES_geometry_shader
) {
1540 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1543 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferLayers
)
1544 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1546 fb
->DefaultGeometry
.Layers
= param
;
1548 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1549 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferSamples
)
1550 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1552 fb
->DefaultGeometry
.NumSamples
= param
;
1554 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1555 fb
->DefaultGeometry
.FixedSampleLocations
= param
;
1557 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1558 fb
->ProgrammableSampleLocations
= !!param
;
1560 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1561 fb
->SampleLocationPixelGrid
= !!param
;
1563 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1569 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1570 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1571 if (fb
== ctx
->DrawBuffer
)
1572 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleLocations
;
1575 invalidate_framebuffer(fb
);
1576 ctx
->NewState
|= _NEW_BUFFERS
;
1583 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1587 _mesa_FramebufferParameteri(GLenum target
, GLenum pname
, GLint param
)
1589 GET_CURRENT_CONTEXT(ctx
);
1590 struct gl_framebuffer
*fb
;
1592 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
1593 !ctx
->Extensions
.ARB_sample_locations
) {
1594 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1595 "glFramebufferParameteriv not supported "
1596 "(neither ARB_framebuffer_no_attachments nor ARB_sample_locations"
1601 fb
= get_framebuffer_target(ctx
, target
);
1603 _mesa_error(ctx
, GL_INVALID_ENUM
,
1604 "glFramebufferParameteri(target=0x%x)", target
);
1608 framebuffer_parameteri(ctx
, fb
, pname
, param
, "glFramebufferParameteri");
1612 validate_get_framebuffer_parameteriv_pname(struct gl_context
*ctx
,
1613 struct gl_framebuffer
*fb
,
1614 GLuint pname
, const char *func
)
1616 bool cannot_be_winsys_fbo
= true;
1619 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1621 * According to the OpenGL ES 3.1 specification section 9.2.3, the
1622 * GL_FRAMEBUFFER_LAYERS parameter name is not supported.
1624 if (_mesa_is_gles31(ctx
) && !ctx
->Extensions
.OES_geometry_shader
) {
1625 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1629 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1630 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1631 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1632 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1634 case GL_DOUBLEBUFFER
:
1635 case GL_IMPLEMENTATION_COLOR_READ_FORMAT
:
1636 case GL_IMPLEMENTATION_COLOR_READ_TYPE
:
1638 case GL_SAMPLE_BUFFERS
:
1640 /* From OpenGL 4.5 spec, section 9.2.3 "Framebuffer Object Queries:
1642 * "An INVALID_OPERATION error is generated by GetFramebufferParameteriv
1643 * if the default framebuffer is bound to target and pname is not one
1644 * of the accepted values from table 23.73, other than
1647 * For OpenGL ES, using default framebuffer raises INVALID_OPERATION
1650 cannot_be_winsys_fbo
= !_mesa_is_desktop_gl(ctx
);
1652 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1653 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1654 if (!ctx
->Extensions
.ARB_sample_locations
)
1655 goto invalid_pname_enum
;
1656 cannot_be_winsys_fbo
= false;
1658 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1659 if (!ctx
->Extensions
.MESA_framebuffer_flip_y
) {
1660 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1665 goto invalid_pname_enum
;
1668 if (cannot_be_winsys_fbo
&& _mesa_is_winsys_fbo(fb
)) {
1669 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1670 "%s(invalid pname=0x%x for default framebuffer)", func
, pname
);
1677 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1682 get_framebuffer_parameteriv(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1683 GLenum pname
, GLint
*params
, const char *func
)
1685 if (!validate_get_framebuffer_parameteriv_pname(ctx
, fb
, pname
, func
))
1689 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1690 *params
= fb
->DefaultGeometry
.Width
;
1692 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1693 *params
= fb
->DefaultGeometry
.Height
;
1695 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1696 *params
= fb
->DefaultGeometry
.Layers
;
1698 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1699 *params
= fb
->DefaultGeometry
.NumSamples
;
1701 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1702 *params
= fb
->DefaultGeometry
.FixedSampleLocations
;
1704 case GL_DOUBLEBUFFER
:
1705 *params
= fb
->Visual
.doubleBufferMode
;
1707 case GL_IMPLEMENTATION_COLOR_READ_FORMAT
:
1708 *params
= _mesa_get_color_read_format(ctx
, fb
, func
);
1710 case GL_IMPLEMENTATION_COLOR_READ_TYPE
:
1711 *params
= _mesa_get_color_read_type(ctx
, fb
, func
);
1714 *params
= _mesa_geometric_samples(fb
);
1716 case GL_SAMPLE_BUFFERS
:
1717 *params
= _mesa_geometric_samples(fb
) > 0;
1720 *params
= fb
->Visual
.stereoMode
;
1722 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1723 *params
= fb
->ProgrammableSampleLocations
;
1725 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1726 *params
= fb
->SampleLocationPixelGrid
;
1728 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1729 *params
= fb
->FlipY
;
1735 _mesa_GetFramebufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
1737 GET_CURRENT_CONTEXT(ctx
);
1738 struct gl_framebuffer
*fb
;
1740 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
1741 !ctx
->Extensions
.ARB_sample_locations
) {
1742 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1743 "glGetFramebufferParameteriv not supported "
1744 "(neither ARB_framebuffer_no_attachments nor ARB_sample_locations"
1749 fb
= get_framebuffer_target(ctx
, target
);
1751 _mesa_error(ctx
, GL_INVALID_ENUM
,
1752 "glGetFramebufferParameteriv(target=0x%x)", target
);
1756 get_framebuffer_parameteriv(ctx
, fb
, pname
, params
,
1757 "glGetFramebufferParameteriv");
1762 * Remove the specified renderbuffer or texture from any attachment point in
1766 * \c true if the renderbuffer was detached from an attachment point. \c
1770 _mesa_detach_renderbuffer(struct gl_context
*ctx
,
1771 struct gl_framebuffer
*fb
,
1775 bool progress
= false;
1777 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1778 if (fb
->Attachment
[i
].Texture
== att
1779 || fb
->Attachment
[i
].Renderbuffer
== att
) {
1780 remove_attachment(ctx
, &fb
->Attachment
[i
]);
1785 /* Section 4.4.4 (Framebuffer Completeness), subsection "Whole Framebuffer
1786 * Completeness," of the OpenGL 3.1 spec says:
1788 * "Performing any of the following actions may change whether the
1789 * framebuffer is considered complete or incomplete:
1793 * - Deleting, with DeleteTextures or DeleteRenderbuffers, an object
1794 * containing an image that is attached to a framebuffer object
1795 * that is bound to the framebuffer."
1798 invalidate_framebuffer(fb
);
1805 _mesa_DeleteRenderbuffers(GLsizei n
, const GLuint
*renderbuffers
)
1808 GET_CURRENT_CONTEXT(ctx
);
1811 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteRenderbuffers(n < 0)");
1815 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1817 for (i
= 0; i
< n
; i
++) {
1818 if (renderbuffers
[i
] > 0) {
1819 struct gl_renderbuffer
*rb
;
1820 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
1822 /* check if deleting currently bound renderbuffer object */
1823 if (rb
== ctx
->CurrentRenderbuffer
) {
1825 assert(rb
->RefCount
>= 2);
1826 _mesa_BindRenderbuffer(GL_RENDERBUFFER_EXT
, 0);
1829 /* Section 4.4.2 (Attaching Images to Framebuffer Objects),
1830 * subsection "Attaching Renderbuffer Images to a Framebuffer,"
1831 * of the OpenGL 3.1 spec says:
1833 * "If a renderbuffer object is deleted while its image is
1834 * attached to one or more attachment points in the currently
1835 * bound framebuffer, then it is as if FramebufferRenderbuffer
1836 * had been called, with a renderbuffer of 0, for each
1837 * attachment point to which this image was attached in the
1838 * currently bound framebuffer. In other words, this
1839 * renderbuffer image is first detached from all attachment
1840 * points in the currently bound framebuffer. Note that the
1841 * renderbuffer image is specifically not detached from any
1842 * non-bound framebuffers. Detaching the image from any
1843 * non-bound framebuffers is the responsibility of the
1846 if (_mesa_is_user_fbo(ctx
->DrawBuffer
)) {
1847 _mesa_detach_renderbuffer(ctx
, ctx
->DrawBuffer
, rb
);
1849 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)
1850 && ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
1851 _mesa_detach_renderbuffer(ctx
, ctx
->ReadBuffer
, rb
);
1854 /* Remove from hash table immediately, to free the ID.
1855 * But the object will not be freed until it's no longer
1856 * referenced anywhere else.
1858 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
1860 if (rb
!= &DummyRenderbuffer
) {
1861 /* no longer referenced by hash table */
1862 _mesa_reference_renderbuffer(&rb
, NULL
);
1870 create_render_buffers(struct gl_context
*ctx
, GLsizei n
, GLuint
*renderbuffers
,
1873 const char *func
= dsa
? "glCreateRenderbuffers" : "glGenRenderbuffers";
1880 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
1882 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
1884 for (i
= 0; i
< n
; i
++) {
1885 GLuint name
= first
+ i
;
1886 renderbuffers
[i
] = name
;
1889 allocate_renderbuffer_locked(ctx
, name
, func
);
1891 /* insert a dummy renderbuffer into the hash table */
1892 _mesa_HashInsertLocked(ctx
->Shared
->RenderBuffers
, name
,
1893 &DummyRenderbuffer
);
1897 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
1902 create_render_buffers_err(struct gl_context
*ctx
, GLsizei n
,
1903 GLuint
*renderbuffers
, bool dsa
)
1905 const char *func
= dsa
? "glCreateRenderbuffers" : "glGenRenderbuffers";
1908 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n<0)", func
);
1912 create_render_buffers(ctx
, n
, renderbuffers
, dsa
);
1917 _mesa_GenRenderbuffers_no_error(GLsizei n
, GLuint
*renderbuffers
)
1919 GET_CURRENT_CONTEXT(ctx
);
1920 create_render_buffers(ctx
, n
, renderbuffers
, false);
1925 _mesa_GenRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1927 GET_CURRENT_CONTEXT(ctx
);
1928 create_render_buffers_err(ctx
, n
, renderbuffers
, false);
1933 _mesa_CreateRenderbuffers_no_error(GLsizei n
, GLuint
*renderbuffers
)
1935 GET_CURRENT_CONTEXT(ctx
);
1936 create_render_buffers(ctx
, n
, renderbuffers
, true);
1941 _mesa_CreateRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1943 GET_CURRENT_CONTEXT(ctx
);
1944 create_render_buffers_err(ctx
, n
, renderbuffers
, true);
1949 * Given an internal format token for a render buffer, return the
1950 * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
1951 * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,
1952 * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).
1954 * This is similar to _mesa_base_tex_format() but the set of valid
1955 * internal formats is different.
1957 * Note that even if a format is determined to be legal here, validation
1958 * of the FBO may fail if the format is not supported by the driver/GPU.
1960 * \param internalFormat as passed to glRenderbufferStorage()
1961 * \return the base internal format, or 0 if internalFormat is illegal
1964 _mesa_base_fbo_format(const struct gl_context
*ctx
, GLenum internalFormat
)
1967 * Notes: some formats such as alpha, luminance, etc. were added
1968 * with GL_ARB_framebuffer_object.
1970 switch (internalFormat
) {
1976 return (ctx
->API
== API_OPENGL_COMPAT
&&
1977 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_ALPHA
: 0;
1981 case GL_LUMINANCE12
:
1982 case GL_LUMINANCE16
:
1983 return (ctx
->API
== API_OPENGL_COMPAT
&&
1984 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE
: 0;
1985 case GL_LUMINANCE_ALPHA
:
1986 case GL_LUMINANCE4_ALPHA4
:
1987 case GL_LUMINANCE6_ALPHA2
:
1988 case GL_LUMINANCE8_ALPHA8
:
1989 case GL_LUMINANCE12_ALPHA4
:
1990 case GL_LUMINANCE12_ALPHA12
:
1991 case GL_LUMINANCE16_ALPHA16
:
1992 return (ctx
->API
== API_OPENGL_COMPAT
&&
1993 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE_ALPHA
: 0;
1997 case GL_INTENSITY12
:
1998 case GL_INTENSITY16
:
1999 return (ctx
->API
== API_OPENGL_COMPAT
&&
2000 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_INTENSITY
: 0;
2010 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
2012 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
2020 return _mesa_is_desktop_gl(ctx
) ? GL_RGBA
: 0;
2022 return _mesa_is_desktop_gl(ctx
) || _mesa_has_EXT_texture_norm16(ctx
)
2025 case GL_SRGB8_ALPHA8_EXT
:
2026 return _mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
2027 case GL_STENCIL_INDEX
:
2028 case GL_STENCIL_INDEX1_EXT
:
2029 case GL_STENCIL_INDEX4_EXT
:
2030 case GL_STENCIL_INDEX16_EXT
:
2031 /* There are extensions for GL_STENCIL_INDEX1 and GL_STENCIL_INDEX4 in
2032 * OpenGL ES, but Mesa does not currently support them.
2034 return _mesa_is_desktop_gl(ctx
) ? GL_STENCIL_INDEX
: 0;
2035 case GL_STENCIL_INDEX8_EXT
:
2036 return GL_STENCIL_INDEX
;
2037 case GL_DEPTH_COMPONENT
:
2038 case GL_DEPTH_COMPONENT32
:
2039 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_COMPONENT
: 0;
2040 case GL_DEPTH_COMPONENT16
:
2041 case GL_DEPTH_COMPONENT24
:
2042 return GL_DEPTH_COMPONENT
;
2043 case GL_DEPTH_STENCIL
:
2044 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_STENCIL
: 0;
2045 case GL_DEPTH24_STENCIL8
:
2046 return GL_DEPTH_STENCIL
;
2047 case GL_DEPTH_COMPONENT32F
:
2048 return ctx
->Version
>= 30
2049 || (ctx
->API
== API_OPENGL_COMPAT
&&
2050 ctx
->Extensions
.ARB_depth_buffer_float
)
2051 ? GL_DEPTH_COMPONENT
: 0;
2052 case GL_DEPTH32F_STENCIL8
:
2053 return ctx
->Version
>= 30
2054 || (ctx
->API
== API_OPENGL_COMPAT
&&
2055 ctx
->Extensions
.ARB_depth_buffer_float
)
2056 ? GL_DEPTH_STENCIL
: 0;
2058 return _mesa_has_ARB_texture_rg(ctx
) ? GL_RED
: 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
2066 return _mesa_has_ARB_texture_rg(ctx
) ? GL_RG
: 0;
2068 return _mesa_has_ARB_texture_rg(ctx
) || _mesa_has_EXT_texture_norm16(ctx
)
2071 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
2073 /* signed normalized texture formats */
2075 return _mesa_has_EXT_texture_snorm(ctx
) || _mesa_has_EXT_render_snorm(ctx
)
2078 return _mesa_has_EXT_texture_snorm(ctx
) ? GL_RED
: 0;
2080 return _mesa_has_EXT_texture_snorm(ctx
) ||
2081 (_mesa_has_EXT_render_snorm(ctx
) &&
2082 _mesa_has_EXT_texture_norm16(ctx
))
2085 return _mesa_has_EXT_texture_snorm(ctx
) || _mesa_has_EXT_render_snorm(ctx
)
2088 return _mesa_has_EXT_texture_snorm(ctx
) ? GL_RG
: 0;
2090 return _mesa_has_EXT_texture_snorm(ctx
) ||
2091 (_mesa_has_EXT_render_snorm(ctx
) &&
2092 _mesa_has_EXT_texture_norm16(ctx
))
2096 case GL_RGB16_SNORM
:
2097 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2099 case GL_RGBA8_SNORM
:
2100 return _mesa_has_EXT_texture_snorm(ctx
) || _mesa_has_EXT_render_snorm(ctx
)
2103 return _mesa_has_EXT_texture_snorm(ctx
) ? GL_RGBA
: 0;
2104 case GL_RGBA16_SNORM
:
2105 return _mesa_has_EXT_texture_snorm(ctx
) ||
2106 (_mesa_has_EXT_render_snorm(ctx
) &&
2107 _mesa_has_EXT_texture_norm16(ctx
))
2109 case GL_ALPHA_SNORM
:
2110 case GL_ALPHA8_SNORM
:
2111 case GL_ALPHA16_SNORM
:
2112 return ctx
->API
== API_OPENGL_COMPAT
&&
2113 ctx
->Extensions
.EXT_texture_snorm
&&
2114 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
2115 case GL_LUMINANCE_SNORM
:
2116 case GL_LUMINANCE8_SNORM
:
2117 case GL_LUMINANCE16_SNORM
:
2118 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2120 case GL_LUMINANCE_ALPHA_SNORM
:
2121 case GL_LUMINANCE8_ALPHA8_SNORM
:
2122 case GL_LUMINANCE16_ALPHA16_SNORM
:
2123 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2124 ? GL_LUMINANCE_ALPHA
: 0;
2125 case GL_INTENSITY_SNORM
:
2126 case GL_INTENSITY8_SNORM
:
2127 case GL_INTENSITY16_SNORM
:
2128 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2133 return ((_mesa_is_desktop_gl(ctx
) &&
2134 ctx
->Extensions
.ARB_texture_rg
&&
2135 ctx
->Extensions
.ARB_texture_float
) ||
2136 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2140 return ((_mesa_is_desktop_gl(ctx
) &&
2141 ctx
->Extensions
.ARB_texture_rg
&&
2142 ctx
->Extensions
.ARB_texture_float
) ||
2143 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2147 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_float
)
2151 return ((_mesa_is_desktop_gl(ctx
) &&
2152 ctx
->Extensions
.ARB_texture_float
) ||
2153 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2156 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_shared_exponent
)
2158 case GL_ALPHA16F_ARB
:
2159 case GL_ALPHA32F_ARB
:
2160 return ctx
->API
== API_OPENGL_COMPAT
&&
2161 ctx
->Extensions
.ARB_texture_float
&&
2162 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
2163 case GL_LUMINANCE16F_ARB
:
2164 case GL_LUMINANCE32F_ARB
:
2165 return ctx
->API
== API_OPENGL_COMPAT
&&
2166 ctx
->Extensions
.ARB_texture_float
&&
2167 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
2168 case GL_LUMINANCE_ALPHA16F_ARB
:
2169 case GL_LUMINANCE_ALPHA32F_ARB
:
2170 return ctx
->API
== API_OPENGL_COMPAT
&&
2171 ctx
->Extensions
.ARB_texture_float
&&
2172 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
2173 case GL_INTENSITY16F_ARB
:
2174 case GL_INTENSITY32F_ARB
:
2175 return ctx
->API
== API_OPENGL_COMPAT
&&
2176 ctx
->Extensions
.ARB_texture_float
&&
2177 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
2178 case GL_R11F_G11F_B10F
:
2179 return ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_packed_float
) ||
2180 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2183 case GL_RGBA8UI_EXT
:
2184 case GL_RGBA16UI_EXT
:
2185 case GL_RGBA32UI_EXT
:
2187 case GL_RGBA16I_EXT
:
2188 case GL_RGBA32I_EXT
:
2189 return ctx
->Version
>= 30
2190 || (_mesa_is_desktop_gl(ctx
) &&
2191 ctx
->Extensions
.EXT_texture_integer
) ? GL_RGBA
: 0;
2194 case GL_RGB16UI_EXT
:
2195 case GL_RGB32UI_EXT
:
2199 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_integer
2207 return ctx
->Version
>= 30
2208 || (_mesa_is_desktop_gl(ctx
) &&
2209 ctx
->Extensions
.ARB_texture_rg
&&
2210 ctx
->Extensions
.EXT_texture_integer
) ? GL_RED
: 0;
2218 return ctx
->Version
>= 30
2219 || (_mesa_is_desktop_gl(ctx
) &&
2220 ctx
->Extensions
.ARB_texture_rg
&&
2221 ctx
->Extensions
.EXT_texture_integer
) ? GL_RG
: 0;
2223 case GL_INTENSITY8I_EXT
:
2224 case GL_INTENSITY8UI_EXT
:
2225 case GL_INTENSITY16I_EXT
:
2226 case GL_INTENSITY16UI_EXT
:
2227 case GL_INTENSITY32I_EXT
:
2228 case GL_INTENSITY32UI_EXT
:
2229 return ctx
->API
== API_OPENGL_COMPAT
&&
2230 ctx
->Extensions
.EXT_texture_integer
&&
2231 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
2233 case GL_LUMINANCE8I_EXT
:
2234 case GL_LUMINANCE8UI_EXT
:
2235 case GL_LUMINANCE16I_EXT
:
2236 case GL_LUMINANCE16UI_EXT
:
2237 case GL_LUMINANCE32I_EXT
:
2238 case GL_LUMINANCE32UI_EXT
:
2239 return ctx
->API
== API_OPENGL_COMPAT
&&
2240 ctx
->Extensions
.EXT_texture_integer
&&
2241 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
2243 case GL_LUMINANCE_ALPHA8I_EXT
:
2244 case GL_LUMINANCE_ALPHA8UI_EXT
:
2245 case GL_LUMINANCE_ALPHA16I_EXT
:
2246 case GL_LUMINANCE_ALPHA16UI_EXT
:
2247 case GL_LUMINANCE_ALPHA32I_EXT
:
2248 case GL_LUMINANCE_ALPHA32UI_EXT
:
2249 return ctx
->API
== API_OPENGL_COMPAT
&&
2250 ctx
->Extensions
.EXT_texture_integer
&&
2251 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
2253 case GL_ALPHA8I_EXT
:
2254 case GL_ALPHA8UI_EXT
:
2255 case GL_ALPHA16I_EXT
:
2256 case GL_ALPHA16UI_EXT
:
2257 case GL_ALPHA32I_EXT
:
2258 case GL_ALPHA32UI_EXT
:
2259 return ctx
->API
== API_OPENGL_COMPAT
&&
2260 ctx
->Extensions
.EXT_texture_integer
&&
2261 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
2264 return (_mesa_is_desktop_gl(ctx
) &&
2265 ctx
->Extensions
.ARB_texture_rgb10_a2ui
)
2266 || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
2269 return _mesa_is_gles(ctx
) || ctx
->Extensions
.ARB_ES2_compatibility
2278 * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk().
2281 invalidate_rb(GLuint key
, void *data
, void *userData
)
2283 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2284 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) userData
;
2286 /* If this is a user-created FBO */
2287 if (_mesa_is_user_fbo(fb
)) {
2289 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2290 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2291 if (att
->Type
== GL_RENDERBUFFER
&&
2292 att
->Renderbuffer
== rb
) {
2293 /* Mark fb status as indeterminate to force re-validation */
2302 /** sentinal value, see below */
2303 #define NO_SAMPLES 1000
2306 _mesa_renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2307 GLenum internalFormat
, GLsizei width
,
2308 GLsizei height
, GLsizei samples
,
2309 GLsizei storageSamples
)
2311 const GLenum baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
2313 assert(baseFormat
!= 0);
2314 assert(width
>= 0 && width
<= (GLsizei
) ctx
->Const
.MaxRenderbufferSize
);
2315 assert(height
>= 0 && height
<= (GLsizei
) ctx
->Const
.MaxRenderbufferSize
);
2316 assert(samples
!= NO_SAMPLES
);
2318 assert(samples
> 0);
2319 assert(_mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
2320 internalFormat
, samples
,
2321 storageSamples
) == GL_NO_ERROR
);
2324 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2326 if (rb
->InternalFormat
== internalFormat
&&
2327 rb
->Width
== (GLuint
) width
&&
2328 rb
->Height
== (GLuint
) height
&&
2329 rb
->NumSamples
== samples
&&
2330 rb
->NumStorageSamples
== storageSamples
) {
2331 /* no change in allocation needed */
2335 /* These MUST get set by the AllocStorage func */
2336 rb
->Format
= MESA_FORMAT_NONE
;
2337 rb
->NumSamples
= samples
;
2338 rb
->NumStorageSamples
= storageSamples
;
2340 /* Now allocate the storage */
2341 assert(rb
->AllocStorage
);
2342 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
2343 /* No error - check/set fields now */
2344 /* If rb->Format == MESA_FORMAT_NONE, the format is unsupported. */
2345 assert(rb
->Width
== (GLuint
) width
);
2346 assert(rb
->Height
== (GLuint
) height
);
2347 rb
->InternalFormat
= internalFormat
;
2348 rb
->_BaseFormat
= baseFormat
;
2349 assert(rb
->_BaseFormat
!= 0);
2352 /* Probably ran out of memory - clear the fields */
2355 rb
->Format
= MESA_FORMAT_NONE
;
2356 rb
->InternalFormat
= GL_NONE
;
2357 rb
->_BaseFormat
= GL_NONE
;
2359 rb
->NumStorageSamples
= 0;
2362 /* Invalidate the framebuffers the renderbuffer is attached in. */
2363 if (rb
->AttachedAnytime
) {
2364 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, invalidate_rb
, rb
);
2369 * Helper function used by renderbuffer_storage_direct() and
2370 * renderbuffer_storage_target().
2371 * samples will be NO_SAMPLES if called by a non-multisample function.
2374 renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2375 GLenum internalFormat
, GLsizei width
,
2376 GLsizei height
, GLsizei samples
, GLsizei storageSamples
,
2380 GLenum sample_count_error
;
2382 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
2383 if (baseFormat
== 0) {
2384 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalFormat=%s)",
2385 func
, _mesa_enum_to_string(internalFormat
));
2389 if (width
< 0 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2390 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid width %d)", func
,
2395 if (height
< 0 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2396 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid height %d)", func
,
2401 if (samples
== NO_SAMPLES
) {
2402 /* NumSamples == 0 indicates non-multisampling */
2407 /* check the sample count;
2408 * note: driver may choose to use more samples than what's requested
2410 sample_count_error
= _mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
2411 internalFormat
, samples
, storageSamples
);
2413 /* Section 2.5 (GL Errors) of OpenGL 3.0 specification, page 16:
2415 * "If a negative number is provided where an argument of type sizei or
2416 * sizeiptr is specified, the error INVALID VALUE is generated."
2418 if (samples
< 0 || storageSamples
< 0) {
2419 sample_count_error
= GL_INVALID_VALUE
;
2422 if (sample_count_error
!= GL_NO_ERROR
) {
2423 _mesa_error(ctx
, sample_count_error
,
2424 "%s(samples=%d, storageSamples=%d)", func
, samples
,
2430 _mesa_renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
,
2435 * Helper function used by _mesa_NamedRenderbufferStorage*().
2436 * samples will be NO_SAMPLES if called by a non-multisample function.
2439 renderbuffer_storage_named(GLuint renderbuffer
, GLenum internalFormat
,
2440 GLsizei width
, GLsizei height
, GLsizei samples
,
2441 GLsizei storageSamples
, const char *func
)
2443 GET_CURRENT_CONTEXT(ctx
);
2445 if (MESA_VERBOSE
& VERBOSE_API
) {
2446 if (samples
== NO_SAMPLES
)
2447 _mesa_debug(ctx
, "%s(%u, %s, %d, %d)\n",
2449 _mesa_enum_to_string(internalFormat
),
2452 _mesa_debug(ctx
, "%s(%u, %s, %d, %d, %d)\n",
2454 _mesa_enum_to_string(internalFormat
),
2455 width
, height
, samples
);
2458 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2459 if (!rb
|| rb
== &DummyRenderbuffer
) {
2460 /* ID was reserved, but no real renderbuffer object made yet */
2461 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid renderbuffer %u)",
2462 func
, renderbuffer
);
2466 renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
,
2467 storageSamples
, func
);
2471 * Helper function used by _mesa_RenderbufferStorage() and
2472 * _mesa_RenderbufferStorageMultisample().
2473 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorage().
2476 renderbuffer_storage_target(GLenum target
, GLenum internalFormat
,
2477 GLsizei width
, GLsizei height
, GLsizei samples
,
2478 GLsizei storageSamples
, const char *func
)
2480 GET_CURRENT_CONTEXT(ctx
);
2482 if (MESA_VERBOSE
& VERBOSE_API
) {
2483 if (samples
== NO_SAMPLES
)
2484 _mesa_debug(ctx
, "%s(%s, %s, %d, %d)\n",
2486 _mesa_enum_to_string(target
),
2487 _mesa_enum_to_string(internalFormat
),
2490 _mesa_debug(ctx
, "%s(%s, %s, %d, %d, %d)\n",
2492 _mesa_enum_to_string(target
),
2493 _mesa_enum_to_string(internalFormat
),
2494 width
, height
, samples
);
2497 if (target
!= GL_RENDERBUFFER_EXT
) {
2498 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
2502 if (!ctx
->CurrentRenderbuffer
) {
2503 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(no renderbuffer bound)",
2508 renderbuffer_storage(ctx
, ctx
->CurrentRenderbuffer
, internalFormat
, width
,
2509 height
, samples
, storageSamples
, func
);
2514 _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target
, GLeglImageOES image
)
2516 struct gl_renderbuffer
*rb
;
2517 GET_CURRENT_CONTEXT(ctx
);
2519 if (!ctx
->Extensions
.OES_EGL_image
) {
2520 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2521 "glEGLImageTargetRenderbufferStorageOES(unsupported)");
2525 if (target
!= GL_RENDERBUFFER
) {
2526 _mesa_error(ctx
, GL_INVALID_ENUM
,
2527 "EGLImageTargetRenderbufferStorageOES");
2531 rb
= ctx
->CurrentRenderbuffer
;
2533 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2534 "EGLImageTargetRenderbufferStorageOES");
2538 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2540 ctx
->Driver
.EGLImageTargetRenderbufferStorage(ctx
, rb
, image
);
2545 * Helper function for _mesa_GetRenderbufferParameteriv() and
2546 * _mesa_GetFramebufferAttachmentParameteriv()
2547 * We have to be careful to respect the base format. For example, if a
2548 * renderbuffer/texture was created with internalFormat=GL_RGB but the
2549 * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
2550 * we need to return zero.
2553 get_component_bits(GLenum pname
, GLenum baseFormat
, mesa_format format
)
2555 if (_mesa_base_format_has_channel(baseFormat
, pname
))
2556 return _mesa_get_format_bits(format
, pname
);
2564 _mesa_RenderbufferStorage(GLenum target
, GLenum internalFormat
,
2565 GLsizei width
, GLsizei height
)
2567 /* GL_ARB_fbo says calling this function is equivalent to calling
2568 * glRenderbufferStorageMultisample() with samples=0. We pass in
2569 * a token value here just for error reporting purposes.
2571 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2572 NO_SAMPLES
, 0, "glRenderbufferStorage");
2577 _mesa_RenderbufferStorageMultisample(GLenum target
, GLsizei samples
,
2578 GLenum internalFormat
,
2579 GLsizei width
, GLsizei height
)
2581 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2583 "glRenderbufferStorageMultisample");
2588 _mesa_RenderbufferStorageMultisampleAdvancedAMD(
2589 GLenum target
, GLsizei samples
, GLsizei storageSamples
,
2590 GLenum internalFormat
, GLsizei width
, GLsizei height
)
2592 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2593 samples
, storageSamples
,
2594 "glRenderbufferStorageMultisampleAdvancedAMD");
2599 * OpenGL ES version of glRenderBufferStorage.
2602 _es_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
2603 GLsizei width
, GLsizei height
)
2605 switch (internalFormat
) {
2607 /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
2608 /* choose a closest format */
2609 internalFormat
= GL_RGB5
;
2615 renderbuffer_storage_target(target
, internalFormat
, width
, height
, 0, 0,
2616 "glRenderbufferStorageEXT");
2620 _mesa_NamedRenderbufferStorage(GLuint renderbuffer
, GLenum internalformat
,
2621 GLsizei width
, GLsizei height
)
2623 /* GL_ARB_fbo says calling this function is equivalent to calling
2624 * glRenderbufferStorageMultisample() with samples=0. We pass in
2625 * a token value here just for error reporting purposes.
2627 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2628 NO_SAMPLES
, 0, "glNamedRenderbufferStorage");
2632 _mesa_NamedRenderbufferStorageMultisample(GLuint renderbuffer
, GLsizei samples
,
2633 GLenum internalformat
,
2634 GLsizei width
, GLsizei height
)
2636 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2638 "glNamedRenderbufferStorageMultisample");
2643 _mesa_NamedRenderbufferStorageMultisampleAdvancedAMD(
2644 GLuint renderbuffer
, GLsizei samples
, GLsizei storageSamples
,
2645 GLenum internalformat
, GLsizei width
, GLsizei height
)
2647 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2648 samples
, storageSamples
,
2649 "glNamedRenderbufferStorageMultisampleAdvancedAMD");
2654 get_render_buffer_parameteriv(struct gl_context
*ctx
,
2655 struct gl_renderbuffer
*rb
, GLenum pname
,
2656 GLint
*params
, const char *func
)
2658 /* No need to flush here since we're just quering state which is
2659 * not effected by rendering.
2663 case GL_RENDERBUFFER_WIDTH_EXT
:
2664 *params
= rb
->Width
;
2666 case GL_RENDERBUFFER_HEIGHT_EXT
:
2667 *params
= rb
->Height
;
2669 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
2670 *params
= rb
->InternalFormat
;
2672 case GL_RENDERBUFFER_RED_SIZE_EXT
:
2673 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
2674 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
2675 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
2676 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
2677 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
2678 *params
= get_component_bits(pname
, rb
->_BaseFormat
, rb
->Format
);
2680 case GL_RENDERBUFFER_SAMPLES
:
2681 if ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_framebuffer_object
)
2682 || _mesa_is_gles3(ctx
)) {
2683 *params
= rb
->NumSamples
;
2687 case GL_RENDERBUFFER_STORAGE_SAMPLES_AMD
:
2688 if (ctx
->Extensions
.AMD_framebuffer_multisample_advanced
) {
2689 *params
= rb
->NumStorageSamples
;
2695 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname=%s)", func
,
2696 _mesa_enum_to_string(pname
));
2701 _mesa_GetRenderbufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
2703 GET_CURRENT_CONTEXT(ctx
);
2705 if (target
!= GL_RENDERBUFFER_EXT
) {
2706 _mesa_error(ctx
, GL_INVALID_ENUM
,
2707 "glGetRenderbufferParameterivEXT(target)");
2711 if (!ctx
->CurrentRenderbuffer
) {
2712 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetRenderbufferParameterivEXT"
2713 "(no renderbuffer bound)");
2717 get_render_buffer_parameteriv(ctx
, ctx
->CurrentRenderbuffer
, pname
,
2718 params
, "glGetRenderbufferParameteriv");
2723 _mesa_GetNamedRenderbufferParameteriv(GLuint renderbuffer
, GLenum pname
,
2726 GET_CURRENT_CONTEXT(ctx
);
2728 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2729 if (!rb
|| rb
== &DummyRenderbuffer
) {
2730 /* ID was reserved, but no real renderbuffer object made yet */
2731 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetNamedRenderbufferParameteriv"
2732 "(invalid renderbuffer %i)", renderbuffer
);
2736 get_render_buffer_parameteriv(ctx
, rb
, pname
, params
,
2737 "glGetNamedRenderbufferParameteriv");
2741 GLboolean GLAPIENTRY
2742 _mesa_IsFramebuffer(GLuint framebuffer
)
2744 GET_CURRENT_CONTEXT(ctx
);
2745 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
2747 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2748 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
2756 * Check if any of the attachments of the given framebuffer are textures
2757 * (render to texture). Call ctx->Driver.RenderTexture() for such
2761 check_begin_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2764 assert(ctx
->Driver
.RenderTexture
);
2766 if (_mesa_is_winsys_fbo(fb
))
2767 return; /* can't render to texture with winsys framebuffers */
2769 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2770 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2771 if (att
->Texture
&& att
->Renderbuffer
->TexImage
2772 && driver_RenderTexture_is_safe(att
)) {
2773 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
2780 * Examine all the framebuffer's attachments to see if any are textures.
2781 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
2782 * notify the device driver that the texture image may have changed.
2785 check_end_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2787 /* Skip if we know NeedsFinishRenderTexture won't be set. */
2788 if (_mesa_is_winsys_fbo(fb
) && !ctx
->Driver
.BindRenderbufferTexImage
)
2791 if (ctx
->Driver
.FinishRenderTexture
) {
2793 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2794 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2795 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
2796 if (rb
&& rb
->NeedsFinishRenderTexture
) {
2797 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
2805 bind_framebuffer(GLenum target
, GLuint framebuffer
)
2807 struct gl_framebuffer
*newDrawFb
, *newReadFb
;
2808 GLboolean bindReadBuf
, bindDrawBuf
;
2809 GET_CURRENT_CONTEXT(ctx
);
2812 case GL_DRAW_FRAMEBUFFER_EXT
:
2813 bindDrawBuf
= GL_TRUE
;
2814 bindReadBuf
= GL_FALSE
;
2816 case GL_READ_FRAMEBUFFER_EXT
:
2817 bindDrawBuf
= GL_FALSE
;
2818 bindReadBuf
= GL_TRUE
;
2820 case GL_FRAMEBUFFER_EXT
:
2821 bindDrawBuf
= GL_TRUE
;
2822 bindReadBuf
= GL_TRUE
;
2825 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
2830 /* Binding a user-created framebuffer object */
2831 newDrawFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2832 if (newDrawFb
== &DummyFramebuffer
) {
2833 /* ID was reserved, but no real framebuffer object made yet */
2836 else if (!newDrawFb
&& ctx
->API
== API_OPENGL_CORE
) {
2837 /* All FBO IDs must be Gen'd */
2838 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2839 "glBindFramebuffer(non-gen name)");
2844 /* create new framebuffer object */
2845 newDrawFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
2847 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
2850 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newDrawFb
);
2852 newReadFb
= newDrawFb
;
2855 /* Binding the window system framebuffer (which was originally set
2856 * with MakeCurrent).
2858 newDrawFb
= ctx
->WinSysDrawBuffer
;
2859 newReadFb
= ctx
->WinSysReadBuffer
;
2862 _mesa_bind_framebuffers(ctx
,
2863 bindDrawBuf
? newDrawFb
: ctx
->DrawBuffer
,
2864 bindReadBuf
? newReadFb
: ctx
->ReadBuffer
);
2868 _mesa_bind_framebuffers(struct gl_context
*ctx
,
2869 struct gl_framebuffer
*newDrawFb
,
2870 struct gl_framebuffer
*newReadFb
)
2872 struct gl_framebuffer
*const oldDrawFb
= ctx
->DrawBuffer
;
2873 struct gl_framebuffer
*const oldReadFb
= ctx
->ReadBuffer
;
2874 const bool bindDrawBuf
= oldDrawFb
!= newDrawFb
;
2875 const bool bindReadBuf
= oldReadFb
!= newReadFb
;
2878 assert(newDrawFb
!= &DummyFramebuffer
);
2881 * OK, now bind the new Draw/Read framebuffers, if they're changing.
2883 * We also check if we're beginning and/or ending render-to-texture.
2884 * When a framebuffer with texture attachments is unbound, call
2885 * ctx->Driver.FinishRenderTexture().
2886 * When a framebuffer with texture attachments is bound, call
2887 * ctx->Driver.RenderTexture().
2889 * Note that if the ReadBuffer has texture attachments we don't consider
2890 * that a render-to-texture case.
2893 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2895 /* check if old readbuffer was render-to-texture */
2896 check_end_texture_render(ctx
, oldReadFb
);
2898 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newReadFb
);
2902 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2903 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleLocations
;
2905 /* check if old framebuffer had any texture attachments */
2907 check_end_texture_render(ctx
, oldDrawFb
);
2909 /* check if newly bound framebuffer has any texture attachments */
2910 check_begin_texture_render(ctx
, newDrawFb
);
2912 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newDrawFb
);
2915 if ((bindDrawBuf
|| bindReadBuf
) && ctx
->Driver
.BindFramebuffer
) {
2916 /* The few classic drivers that actually hook this function really only
2917 * want to know if the draw framebuffer changed.
2919 ctx
->Driver
.BindFramebuffer(ctx
,
2920 bindDrawBuf
? GL_FRAMEBUFFER
: GL_READ_FRAMEBUFFER
,
2921 newDrawFb
, newReadFb
);
2926 _mesa_BindFramebuffer(GLenum target
, GLuint framebuffer
)
2928 /* OpenGL ES glBindFramebuffer and glBindFramebufferOES use this same entry
2929 * point, but they allow the use of user-generated names.
2931 bind_framebuffer(target
, framebuffer
);
2936 _mesa_BindFramebufferEXT(GLenum target
, GLuint framebuffer
)
2938 bind_framebuffer(target
, framebuffer
);
2943 _mesa_DeleteFramebuffers(GLsizei n
, const GLuint
*framebuffers
)
2946 GET_CURRENT_CONTEXT(ctx
);
2949 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteFramebuffers(n < 0)");
2953 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2955 for (i
= 0; i
< n
; i
++) {
2956 if (framebuffers
[i
] > 0) {
2957 struct gl_framebuffer
*fb
;
2958 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
2960 assert(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
2962 /* check if deleting currently bound framebuffer object */
2963 if (fb
== ctx
->DrawBuffer
) {
2965 assert(fb
->RefCount
>= 2);
2966 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, 0);
2968 if (fb
== ctx
->ReadBuffer
) {
2970 assert(fb
->RefCount
>= 2);
2971 _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER
, 0);
2974 /* remove from hash table immediately, to free the ID */
2975 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
2977 if (fb
!= &DummyFramebuffer
) {
2978 /* But the object will not be freed until it's no longer
2979 * bound in any context.
2981 _mesa_reference_framebuffer(&fb
, NULL
);
2990 * This is the implementation for glGenFramebuffers and glCreateFramebuffers.
2991 * It is not exposed to the rest of Mesa to encourage the use of
2992 * nameless buffers in driver internals.
2995 create_framebuffers(GLsizei n
, GLuint
*framebuffers
, bool dsa
)
2997 GET_CURRENT_CONTEXT(ctx
);
3000 struct gl_framebuffer
*fb
;
3002 const char *func
= dsa
? "glCreateFramebuffers" : "glGenFramebuffers";
3005 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n < 0)", func
);
3012 _mesa_HashLockMutex(ctx
->Shared
->FrameBuffers
);
3014 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
3016 for (i
= 0; i
< n
; i
++) {
3017 GLuint name
= first
+ i
;
3018 framebuffers
[i
] = name
;
3021 fb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffers
[i
]);
3023 _mesa_HashUnlockMutex(ctx
->Shared
->FrameBuffers
);
3024 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
3029 fb
= &DummyFramebuffer
;
3031 _mesa_HashInsertLocked(ctx
->Shared
->FrameBuffers
, name
, fb
);
3034 _mesa_HashUnlockMutex(ctx
->Shared
->FrameBuffers
);
3039 _mesa_GenFramebuffers(GLsizei n
, GLuint
*framebuffers
)
3041 create_framebuffers(n
, framebuffers
, false);
3046 _mesa_CreateFramebuffers(GLsizei n
, GLuint
*framebuffers
)
3048 create_framebuffers(n
, framebuffers
, true);
3053 _mesa_check_framebuffer_status(struct gl_context
*ctx
,
3054 struct gl_framebuffer
*buffer
)
3056 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
3058 if (_mesa_is_winsys_fbo(buffer
)) {
3059 /* EGL_KHR_surfaceless_context allows the winsys FBO to be incomplete. */
3060 if (buffer
!= &IncompleteFramebuffer
) {
3061 return GL_FRAMEBUFFER_COMPLETE_EXT
;
3063 return GL_FRAMEBUFFER_UNDEFINED
;
3067 /* No need to flush here */
3069 if (buffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE
) {
3070 _mesa_test_framebuffer_completeness(ctx
, buffer
);
3073 return buffer
->_Status
;
3078 _mesa_CheckFramebufferStatus_no_error(GLenum target
)
3080 GET_CURRENT_CONTEXT(ctx
);
3082 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
3083 return _mesa_check_framebuffer_status(ctx
, fb
);
3088 _mesa_CheckFramebufferStatus(GLenum target
)
3090 struct gl_framebuffer
*fb
;
3091 GET_CURRENT_CONTEXT(ctx
);
3093 if (MESA_VERBOSE
& VERBOSE_API
)
3094 _mesa_debug(ctx
, "glCheckFramebufferStatus(%s)\n",
3095 _mesa_enum_to_string(target
));
3097 fb
= get_framebuffer_target(ctx
, target
);
3099 _mesa_error(ctx
, GL_INVALID_ENUM
,
3100 "glCheckFramebufferStatus(invalid target %s)",
3101 _mesa_enum_to_string(target
));
3105 return _mesa_check_framebuffer_status(ctx
, fb
);
3110 _mesa_CheckNamedFramebufferStatus(GLuint framebuffer
, GLenum target
)
3112 struct gl_framebuffer
*fb
;
3113 GET_CURRENT_CONTEXT(ctx
);
3115 /* Validate the target (for conformance's sake) and grab a reference to the
3116 * default framebuffer in case framebuffer = 0.
3117 * Section 9.4 Framebuffer Completeness of the OpenGL 4.5 core spec
3118 * (30.10.2014, PDF page 336) says:
3119 * "If framebuffer is zero, then the status of the default read or
3120 * draw framebuffer (as determined by target) is returned."
3123 case GL_DRAW_FRAMEBUFFER
:
3124 case GL_FRAMEBUFFER
:
3125 fb
= ctx
->WinSysDrawBuffer
;
3127 case GL_READ_FRAMEBUFFER
:
3128 fb
= ctx
->WinSysReadBuffer
;
3131 _mesa_error(ctx
, GL_INVALID_ENUM
,
3132 "glCheckNamedFramebufferStatus(invalid target %s)",
3133 _mesa_enum_to_string(target
));
3138 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3139 "glCheckNamedFramebufferStatus");
3144 return _mesa_check_framebuffer_status(ctx
, fb
);
3149 * Replicate the src attachment point. Used by framebuffer_texture() when
3150 * the same texture is attached at GL_DEPTH_ATTACHMENT and
3151 * GL_STENCIL_ATTACHMENT.
3154 reuse_framebuffer_texture_attachment(struct gl_framebuffer
*fb
,
3155 gl_buffer_index dst
,
3156 gl_buffer_index src
)
3158 struct gl_renderbuffer_attachment
*dst_att
= &fb
->Attachment
[dst
];
3159 struct gl_renderbuffer_attachment
*src_att
= &fb
->Attachment
[src
];
3161 assert(src_att
->Texture
!= NULL
);
3162 assert(src_att
->Renderbuffer
!= NULL
);
3164 _mesa_reference_texobj(&dst_att
->Texture
, src_att
->Texture
);
3165 _mesa_reference_renderbuffer(&dst_att
->Renderbuffer
, src_att
->Renderbuffer
);
3166 dst_att
->Type
= src_att
->Type
;
3167 dst_att
->Complete
= src_att
->Complete
;
3168 dst_att
->TextureLevel
= src_att
->TextureLevel
;
3169 dst_att
->CubeMapFace
= src_att
->CubeMapFace
;
3170 dst_att
->Zoffset
= src_att
->Zoffset
;
3171 dst_att
->Layered
= src_att
->Layered
;
3175 static struct gl_texture_object
*
3176 get_texture_for_framebuffer(struct gl_context
*ctx
, GLuint texture
)
3181 return _mesa_lookup_texture(ctx
, texture
);
3186 * Common code called by gl*FramebufferTexture*() to retrieve the correct
3187 * texture object pointer.
3189 * \param texObj where the pointer to the texture object is returned. Note
3190 * that a successful call may return texObj = NULL.
3192 * \return true if no errors, false if errors
3195 get_texture_for_framebuffer_err(struct gl_context
*ctx
, GLuint texture
,
3196 bool layered
, const char *caller
,
3197 struct gl_texture_object
**texObj
)
3199 *texObj
= NULL
; /* This will get returned if texture = 0. */
3204 *texObj
= _mesa_lookup_texture(ctx
, texture
);
3205 if (*texObj
== NULL
|| (*texObj
)->Target
== 0) {
3206 /* Can't render to a non-existent texture object.
3208 * The OpenGL 4.5 core spec (02.02.2015) in Section 9.2 Binding and
3209 * Managing Framebuffer Objects specifies a different error
3210 * depending upon the calling function (PDF pages 325-328).
3211 * *FramebufferTexture (where layered = GL_TRUE) throws invalid
3212 * value, while the other commands throw invalid operation (where
3213 * layered = GL_FALSE).
3215 const GLenum error
= layered
? GL_INVALID_VALUE
:
3216 GL_INVALID_OPERATION
;
3217 _mesa_error(ctx
, error
,
3218 "%s(non-existent texture %u)", caller
, texture
);
3227 * Common code called by gl*FramebufferTexture() to verify the texture target
3228 * and decide whether or not the attachment should truly be considered
3231 * \param layered true if attachment should be considered layered, false if
3234 * \return true if no errors, false if errors
3237 check_layered_texture_target(struct gl_context
*ctx
, GLenum target
,
3238 const char *caller
, GLboolean
*layered
)
3244 case GL_TEXTURE_1D_ARRAY_EXT
:
3245 case GL_TEXTURE_2D_ARRAY_EXT
:
3246 case GL_TEXTURE_CUBE_MAP
:
3247 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3248 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3252 case GL_TEXTURE_RECTANGLE
:
3253 case GL_TEXTURE_2D_MULTISAMPLE
:
3254 /* These texture types are valid to pass to
3255 * glFramebufferTexture(), but since they aren't layered, it
3256 * is equivalent to calling glFramebufferTexture{1D,2D}().
3258 *layered
= GL_FALSE
;
3262 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3263 "%s(invalid texture target %s)", caller
,
3264 _mesa_enum_to_string(target
));
3270 * Common code called by gl*FramebufferTextureLayer() to verify the texture
3273 * \return true if no errors, false if errors
3276 check_texture_target(struct gl_context
*ctx
, GLenum target
,
3279 /* We're being called by glFramebufferTextureLayer().
3280 * The only legal texture types for that function are 3D,
3281 * cube-map, and 1D/2D/cube-map array textures.
3283 * We don't need to check for GL_ARB_texture_cube_map_array because the
3284 * application wouldn't have been able to create a texture with a
3285 * GL_TEXTURE_CUBE_MAP_ARRAY target if the extension were not enabled.
3289 case GL_TEXTURE_1D_ARRAY
:
3290 case GL_TEXTURE_2D_ARRAY
:
3291 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3292 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3294 case GL_TEXTURE_CUBE_MAP
:
3295 /* GL_TEXTURE_CUBE_MAP is only allowed by OpenGL 4.5 here, which
3296 * includes the DSA API.
3298 * Because DSA is only enabled for GL 3.1+ and this can be called
3299 * from _mesa_FramebufferTextureLayer in compatibility profile,
3300 * we need to check the version.
3302 return _mesa_is_desktop_gl(ctx
) && ctx
->Version
>= 31;
3305 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3306 "%s(invalid texture target %s)", caller
,
3307 _mesa_enum_to_string(target
));
3313 * Common code called by glFramebufferTexture*D() to verify the texture
3316 * \return true if no errors, false if errors
3319 check_textarget(struct gl_context
*ctx
, int dims
, GLenum target
,
3320 GLenum textarget
, const char *caller
)
3324 switch (textarget
) {
3328 case GL_TEXTURE_1D_ARRAY
:
3329 err
= dims
!= 1 || !ctx
->Extensions
.EXT_texture_array
;
3334 case GL_TEXTURE_2D_ARRAY
:
3335 err
= dims
!= 2 || !ctx
->Extensions
.EXT_texture_array
||
3336 (_mesa_is_gles(ctx
) && ctx
->Version
< 30);
3338 case GL_TEXTURE_2D_MULTISAMPLE
:
3339 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3341 !ctx
->Extensions
.ARB_texture_multisample
||
3342 (_mesa_is_gles(ctx
) && ctx
->Version
< 31);
3344 case GL_TEXTURE_RECTANGLE
:
3345 err
= dims
!= 2 || _mesa_is_gles(ctx
) ||
3346 !ctx
->Extensions
.NV_texture_rectangle
;
3348 case GL_TEXTURE_CUBE_MAP
:
3349 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3352 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
3353 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
3354 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
3355 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
3356 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
3357 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
3358 err
= dims
!= 2 || !ctx
->Extensions
.ARB_texture_cube_map
;
3364 _mesa_error(ctx
, GL_INVALID_ENUM
,
3365 "%s(unknown textarget 0x%x)", caller
, textarget
);
3370 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3371 "%s(invalid textarget %s)",
3372 caller
, _mesa_enum_to_string(textarget
));
3376 /* Make sure textarget is consistent with the texture's type */
3377 err
= (target
== GL_TEXTURE_CUBE_MAP
) ?
3378 !_mesa_is_cube_face(textarget
): (target
!= textarget
);
3381 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3382 "%s(mismatched texture target)", caller
);
3391 * Common code called by gl*FramebufferTextureLayer() and
3392 * glFramebufferTexture3D() to validate the layer.
3394 * \return true if no errors, false if errors
3397 check_layer(struct gl_context
*ctx
, GLenum target
, GLint layer
,
3400 /* Page 306 (page 328 of the PDF) of the OpenGL 4.5 (Core Profile)
3403 * "An INVALID_VALUE error is generated if texture is non-zero
3404 * and layer is negative."
3407 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(layer %d < 0)", caller
, layer
);
3411 if (target
== GL_TEXTURE_3D
) {
3412 const GLuint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
3413 if (layer
>= maxSize
) {
3414 _mesa_error(ctx
, GL_INVALID_VALUE
,
3415 "%s(invalid layer %u)", caller
, layer
);
3419 else if ((target
== GL_TEXTURE_1D_ARRAY
) ||
3420 (target
== GL_TEXTURE_2D_ARRAY
) ||
3421 (target
== GL_TEXTURE_CUBE_MAP_ARRAY
) ||
3422 (target
== GL_TEXTURE_2D_MULTISAMPLE_ARRAY
)) {
3423 if (layer
>= ctx
->Const
.MaxArrayTextureLayers
) {
3424 _mesa_error(ctx
, GL_INVALID_VALUE
,
3425 "%s(layer %u >= GL_MAX_ARRAY_TEXTURE_LAYERS)",
3430 else if (target
== GL_TEXTURE_CUBE_MAP
) {
3432 _mesa_error(ctx
, GL_INVALID_VALUE
,
3433 "%s(layer %u >= 6)", caller
, layer
);
3443 * Common code called by all gl*FramebufferTexture*() entry points to verify
3446 * \return true if no errors, false if errors
3449 check_level(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
3450 GLenum target
, GLint level
, const char *caller
)
3452 /* Section 9.2.8 of the OpenGL 4.6 specification says:
3454 * "If texture refers to an immutable-format texture, level must be
3455 * greater than or equal to zero and smaller than the value of
3456 * TEXTURE_VIEW_NUM_LEVELS for texture."
3458 const int max_levels
= texObj
->Immutable
? texObj
->ImmutableLevels
:
3459 _mesa_max_texture_levels(ctx
, target
);
3461 if (level
< 0 || level
>= max_levels
) {
3462 _mesa_error(ctx
, GL_INVALID_VALUE
,
3463 "%s(invalid level %d)", caller
, level
);
3471 struct gl_renderbuffer_attachment
*
3472 _mesa_get_and_validate_attachment(struct gl_context
*ctx
,
3473 struct gl_framebuffer
*fb
,
3474 GLenum attachment
, const char *caller
)
3476 /* The window-system framebuffer object is immutable */
3477 if (_mesa_is_winsys_fbo(fb
)) {
3478 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(window-system framebuffer)",
3483 /* Not a hash lookup, so we can afford to get the attachment here. */
3484 bool is_color_attachment
;
3485 struct gl_renderbuffer_attachment
*att
=
3486 get_attachment(ctx
, fb
, attachment
, &is_color_attachment
);
3488 if (is_color_attachment
) {
3489 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3490 "%s(invalid color attachment %s)", caller
,
3491 _mesa_enum_to_string(attachment
));
3493 _mesa_error(ctx
, GL_INVALID_ENUM
,
3494 "%s(invalid attachment %s)", caller
,
3495 _mesa_enum_to_string(attachment
));
3505 _mesa_framebuffer_texture(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
3507 struct gl_renderbuffer_attachment
*att
,
3508 struct gl_texture_object
*texObj
, GLenum textarget
,
3509 GLint level
, GLsizei samples
,
3510 GLuint layer
, GLboolean layered
)
3512 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3514 simple_mtx_lock(&fb
->Mutex
);
3516 if (attachment
== GL_DEPTH_ATTACHMENT
&&
3517 texObj
== fb
->Attachment
[BUFFER_STENCIL
].Texture
&&
3518 level
== fb
->Attachment
[BUFFER_STENCIL
].TextureLevel
&&
3519 _mesa_tex_target_to_face(textarget
) ==
3520 fb
->Attachment
[BUFFER_STENCIL
].CubeMapFace
&&
3521 samples
== fb
->Attachment
[BUFFER_STENCIL
].NumSamples
&&
3522 layer
== fb
->Attachment
[BUFFER_STENCIL
].Zoffset
) {
3523 /* The texture object is already attached to the stencil attachment
3524 * point. Don't create a new renderbuffer; just reuse the stencil
3525 * attachment's. This is required to prevent a GL error in
3526 * glGetFramebufferAttachmentParameteriv(GL_DEPTH_STENCIL).
3528 reuse_framebuffer_texture_attachment(fb
, BUFFER_DEPTH
,
3530 } else if (attachment
== GL_STENCIL_ATTACHMENT
&&
3531 texObj
== fb
->Attachment
[BUFFER_DEPTH
].Texture
&&
3532 level
== fb
->Attachment
[BUFFER_DEPTH
].TextureLevel
&&
3533 _mesa_tex_target_to_face(textarget
) ==
3534 fb
->Attachment
[BUFFER_DEPTH
].CubeMapFace
&&
3535 samples
== fb
->Attachment
[BUFFER_DEPTH
].NumSamples
&&
3536 layer
== fb
->Attachment
[BUFFER_DEPTH
].Zoffset
) {
3537 /* As above, but with depth and stencil transposed. */
3538 reuse_framebuffer_texture_attachment(fb
, BUFFER_STENCIL
,
3541 set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
3542 level
, samples
, layer
, layered
);
3544 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3545 /* Above we created a new renderbuffer and attached it to the
3546 * depth attachment point. Now attach it to the stencil attachment
3549 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3550 reuse_framebuffer_texture_attachment(fb
,BUFFER_STENCIL
,
3555 /* Set the render-to-texture flag. We'll check this flag in
3556 * glTexImage() and friends to determine if we need to revalidate
3557 * any FBOs that might be rendering into this texture.
3558 * This flag never gets cleared since it's non-trivial to determine
3559 * when all FBOs might be done rendering to this texture. That's OK
3560 * though since it's uncommon to render to a texture then repeatedly
3561 * call glTexImage() to change images in the texture.
3563 texObj
->_RenderToTexture
= GL_TRUE
;
3566 remove_attachment(ctx
, att
);
3567 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3568 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3569 remove_attachment(ctx
, &fb
->Attachment
[BUFFER_STENCIL
]);
3573 invalidate_framebuffer(fb
);
3575 simple_mtx_unlock(&fb
->Mutex
);
3580 framebuffer_texture_with_dims_no_error(GLenum target
, GLenum attachment
,
3581 GLenum textarget
, GLuint texture
,
3582 GLint level
, GLint layer
)
3584 GET_CURRENT_CONTEXT(ctx
);
3586 /* Get the framebuffer object */
3587 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
3589 /* Get the texture object */
3590 struct gl_texture_object
*texObj
=
3591 get_texture_for_framebuffer(ctx
, texture
);
3593 struct gl_renderbuffer_attachment
*att
=
3594 get_attachment(ctx
, fb
, attachment
, NULL
);
3596 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3597 level
, 0, layer
, GL_FALSE
);
3602 framebuffer_texture_with_dims(int dims
, GLenum target
,
3603 GLenum attachment
, GLenum textarget
,
3604 GLuint texture
, GLint level
, GLsizei samples
,
3605 GLint layer
, const char *caller
)
3607 GET_CURRENT_CONTEXT(ctx
);
3608 struct gl_framebuffer
*fb
;
3609 struct gl_texture_object
*texObj
;
3611 /* Get the framebuffer object */
3612 fb
= get_framebuffer_target(ctx
, target
);
3614 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", caller
,
3615 _mesa_enum_to_string(target
));
3619 /* Get the texture object */
3620 if (!get_texture_for_framebuffer_err(ctx
, texture
, false, caller
, &texObj
))
3624 if (!check_textarget(ctx
, dims
, texObj
->Target
, textarget
, caller
))
3627 if ((dims
== 3) && !check_layer(ctx
, texObj
->Target
, layer
, caller
))
3630 if (!check_level(ctx
, texObj
, textarget
, level
, caller
))
3634 struct gl_renderbuffer_attachment
*att
=
3635 _mesa_get_and_validate_attachment(ctx
, fb
, attachment
, caller
);
3639 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3640 level
, samples
, layer
, GL_FALSE
);
3645 _mesa_FramebufferTexture1D_no_error(GLenum target
, GLenum attachment
,
3646 GLenum textarget
, GLuint texture
,
3649 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3655 _mesa_FramebufferTexture1D(GLenum target
, GLenum attachment
,
3656 GLenum textarget
, GLuint texture
, GLint level
)
3658 framebuffer_texture_with_dims(1, target
, attachment
, textarget
, texture
,
3659 level
, 0, 0, "glFramebufferTexture1D");
3664 _mesa_FramebufferTexture2D_no_error(GLenum target
, GLenum attachment
,
3665 GLenum textarget
, GLuint texture
,
3668 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3674 _mesa_FramebufferTexture2D(GLenum target
, GLenum attachment
,
3675 GLenum textarget
, GLuint texture
, GLint level
)
3677 framebuffer_texture_with_dims(2, target
, attachment
, textarget
, texture
,
3678 level
, 0, 0, "glFramebufferTexture2D");
3683 _mesa_FramebufferTexture2DMultisampleEXT(GLenum target
, GLenum attachment
,
3684 GLenum textarget
, GLuint texture
,
3685 GLint level
, GLsizei samples
)
3687 framebuffer_texture_with_dims(2, target
, attachment
, textarget
, texture
,
3688 level
, samples
, 0, "glFramebufferTexture2DMultisampleEXT");
3693 _mesa_FramebufferTexture3D_no_error(GLenum target
, GLenum attachment
,
3694 GLenum textarget
, GLuint texture
,
3695 GLint level
, GLint layer
)
3697 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3698 texture
, level
, layer
);
3703 _mesa_FramebufferTexture3D(GLenum target
, GLenum attachment
,
3704 GLenum textarget
, GLuint texture
,
3705 GLint level
, GLint layer
)
3707 framebuffer_texture_with_dims(3, target
, attachment
, textarget
, texture
,
3708 level
, 0, layer
, "glFramebufferTexture3D");
3712 static ALWAYS_INLINE
void
3713 frame_buffer_texture(GLuint framebuffer
, GLenum target
,
3714 GLenum attachment
, GLuint texture
,
3715 GLint level
, GLint layer
, const char *func
,
3716 bool dsa
, bool no_error
, bool check_layered
)
3718 GET_CURRENT_CONTEXT(ctx
);
3719 GLboolean layered
= GL_FALSE
;
3721 if (!no_error
&& check_layered
) {
3722 if (!_mesa_has_geometry_shaders(ctx
)) {
3723 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3724 "unsupported function (%s) called", func
);
3729 /* Get the framebuffer object */
3730 struct gl_framebuffer
*fb
;
3733 fb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
3735 fb
= get_framebuffer_target(ctx
, target
);
3739 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
, func
);
3743 fb
= get_framebuffer_target(ctx
, target
);
3745 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)",
3746 func
, _mesa_enum_to_string(target
));
3752 /* Get the texture object and framebuffer attachment*/
3753 struct gl_renderbuffer_attachment
*att
;
3754 struct gl_texture_object
*texObj
;
3756 texObj
= get_texture_for_framebuffer(ctx
, texture
);
3757 att
= get_attachment(ctx
, fb
, attachment
, NULL
);
3759 if (!get_texture_for_framebuffer_err(ctx
, texture
, check_layered
, func
,
3763 att
= _mesa_get_and_validate_attachment(ctx
, fb
, attachment
, func
);
3768 GLenum textarget
= 0;
3770 if (check_layered
) {
3771 /* We do this regardless of no_error because this sets layered */
3772 if (!check_layered_texture_target(ctx
, texObj
->Target
, func
,
3778 if (!check_layered
) {
3779 if (!check_texture_target(ctx
, texObj
->Target
, func
))
3782 if (!check_layer(ctx
, texObj
->Target
, layer
, func
))
3786 if (!check_level(ctx
, texObj
, texObj
->Target
, level
, func
))
3790 if (!check_layered
&& texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3791 assert(layer
>= 0 && layer
< 6);
3792 textarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ layer
;
3797 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3798 level
, 0, layer
, layered
);
3802 _mesa_FramebufferTextureLayer_no_error(GLenum target
, GLenum attachment
,
3803 GLuint texture
, GLint level
,
3806 frame_buffer_texture(0, target
, attachment
, texture
, level
, layer
,
3807 "glFramebufferTextureLayer", false, true, false);
3812 _mesa_FramebufferTextureLayer(GLenum target
, GLenum attachment
,
3813 GLuint texture
, GLint level
, GLint layer
)
3815 frame_buffer_texture(0, target
, attachment
, texture
, level
, layer
,
3816 "glFramebufferTextureLayer", false, false, false);
3821 _mesa_NamedFramebufferTextureLayer_no_error(GLuint framebuffer
,
3823 GLuint texture
, GLint level
,
3826 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, layer
,
3827 "glNamedFramebufferTextureLayer", true, true, false);
3832 _mesa_NamedFramebufferTextureLayer(GLuint framebuffer
, GLenum attachment
,
3833 GLuint texture
, GLint level
, GLint layer
)
3835 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, layer
,
3836 "glNamedFramebufferTextureLayer", true, false, false);
3841 _mesa_FramebufferTexture_no_error(GLenum target
, GLenum attachment
,
3842 GLuint texture
, GLint level
)
3844 frame_buffer_texture(0, target
, attachment
, texture
, level
, 0,
3845 "glFramebufferTexture", false, true, true);
3850 _mesa_FramebufferTexture(GLenum target
, GLenum attachment
,
3851 GLuint texture
, GLint level
)
3853 frame_buffer_texture(0, target
, attachment
, texture
, level
, 0,
3854 "glFramebufferTexture", false, false, true);
3858 _mesa_NamedFramebufferTexture_no_error(GLuint framebuffer
, GLenum attachment
,
3859 GLuint texture
, GLint level
)
3861 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, 0,
3862 "glNamedFramebufferTexture", true, true, true);
3867 _mesa_NamedFramebufferTexture(GLuint framebuffer
, GLenum attachment
,
3868 GLuint texture
, GLint level
)
3870 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, 0,
3871 "glNamedFramebufferTexture", true, false, true);
3876 _mesa_framebuffer_renderbuffer(struct gl_context
*ctx
,
3877 struct gl_framebuffer
*fb
,
3879 struct gl_renderbuffer
*rb
)
3881 assert(!_mesa_is_winsys_fbo(fb
));
3883 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3885 assert(ctx
->Driver
.FramebufferRenderbuffer
);
3886 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
3888 /* Some subsequent GL commands may depend on the framebuffer's visual
3889 * after the binding is updated. Update visual info now.
3891 _mesa_update_framebuffer_visual(ctx
, fb
);
3894 static ALWAYS_INLINE
void
3895 framebuffer_renderbuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
3896 GLenum attachment
, GLenum renderbuffertarget
,
3897 GLuint renderbuffer
, const char *func
, bool no_error
)
3899 struct gl_renderbuffer_attachment
*att
;
3900 struct gl_renderbuffer
*rb
;
3901 bool is_color_attachment
;
3903 if (!no_error
&& renderbuffertarget
!= GL_RENDERBUFFER
) {
3904 _mesa_error(ctx
, GL_INVALID_ENUM
,
3905 "%s(renderbuffertarget is not GL_RENDERBUFFER)", func
);
3911 rb
= _mesa_lookup_renderbuffer_err(ctx
, renderbuffer
, func
);
3915 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
3918 /* remove renderbuffer attachment */
3923 if (_mesa_is_winsys_fbo(fb
)) {
3924 /* Can't attach new renderbuffers to a window system framebuffer */
3925 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3926 "%s(window-system framebuffer)", func
);
3930 att
= get_attachment(ctx
, fb
, attachment
, &is_color_attachment
);
3933 * From OpenGL 4.5 spec, section 9.2.7 "Attaching Renderbuffer Images
3934 * to a Framebuffer":
3936 * "An INVALID_OPERATION error is generated if attachment is
3937 * COLOR_- ATTACHMENTm where m is greater than or equal to the
3938 * value of MAX_COLOR_- ATTACHMENTS ."
3940 * If we are at this point, is because the attachment is not valid, so
3941 * if is_color_attachment is true, is because of the previous reason.
3943 if (is_color_attachment
) {
3944 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3945 "%s(invalid color attachment %s)", func
,
3946 _mesa_enum_to_string(attachment
));
3948 _mesa_error(ctx
, GL_INVALID_ENUM
,
3949 "%s(invalid attachment %s)", func
,
3950 _mesa_enum_to_string(attachment
));
3956 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
&&
3957 rb
&& rb
->Format
!= MESA_FORMAT_NONE
) {
3958 /* make sure the renderbuffer is a depth/stencil format */
3959 const GLenum baseFormat
= _mesa_get_format_base_format(rb
->Format
);
3960 if (baseFormat
!= GL_DEPTH_STENCIL
) {
3961 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3962 "%s(renderbuffer is not DEPTH_STENCIL format)", func
);
3968 _mesa_framebuffer_renderbuffer(ctx
, fb
, attachment
, rb
);
3972 framebuffer_renderbuffer_error(struct gl_context
*ctx
,
3973 struct gl_framebuffer
*fb
, GLenum attachment
,
3974 GLenum renderbuffertarget
,
3975 GLuint renderbuffer
, const char *func
)
3977 framebuffer_renderbuffer(ctx
, fb
, attachment
, renderbuffertarget
,
3978 renderbuffer
, func
, false);
3982 framebuffer_renderbuffer_no_error(struct gl_context
*ctx
,
3983 struct gl_framebuffer
*fb
, GLenum attachment
,
3984 GLenum renderbuffertarget
,
3985 GLuint renderbuffer
, const char *func
)
3987 framebuffer_renderbuffer(ctx
, fb
, attachment
, renderbuffertarget
,
3988 renderbuffer
, func
, true);
3992 _mesa_FramebufferRenderbuffer_no_error(GLenum target
, GLenum attachment
,
3993 GLenum renderbuffertarget
,
3994 GLuint renderbuffer
)
3996 GET_CURRENT_CONTEXT(ctx
);
3998 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
3999 framebuffer_renderbuffer_no_error(ctx
, fb
, attachment
, renderbuffertarget
,
4000 renderbuffer
, "glFramebufferRenderbuffer");
4004 _mesa_FramebufferRenderbuffer(GLenum target
, GLenum attachment
,
4005 GLenum renderbuffertarget
,
4006 GLuint renderbuffer
)
4008 struct gl_framebuffer
*fb
;
4009 GET_CURRENT_CONTEXT(ctx
);
4011 fb
= get_framebuffer_target(ctx
, target
);
4013 _mesa_error(ctx
, GL_INVALID_ENUM
,
4014 "glFramebufferRenderbuffer(invalid target %s)",
4015 _mesa_enum_to_string(target
));
4019 framebuffer_renderbuffer_error(ctx
, fb
, attachment
, renderbuffertarget
,
4020 renderbuffer
, "glFramebufferRenderbuffer");
4024 _mesa_NamedFramebufferRenderbuffer_no_error(GLuint framebuffer
,
4026 GLenum renderbuffertarget
,
4027 GLuint renderbuffer
)
4029 GET_CURRENT_CONTEXT(ctx
);
4031 struct gl_framebuffer
*fb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
4032 framebuffer_renderbuffer_no_error(ctx
, fb
, attachment
, renderbuffertarget
,
4034 "glNamedFramebufferRenderbuffer");
4038 _mesa_NamedFramebufferRenderbuffer(GLuint framebuffer
, GLenum attachment
,
4039 GLenum renderbuffertarget
,
4040 GLuint renderbuffer
)
4042 struct gl_framebuffer
*fb
;
4043 GET_CURRENT_CONTEXT(ctx
);
4045 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4046 "glNamedFramebufferRenderbuffer");
4050 framebuffer_renderbuffer_error(ctx
, fb
, attachment
, renderbuffertarget
,
4052 "glNamedFramebufferRenderbuffer");
4057 get_framebuffer_attachment_parameter(struct gl_context
*ctx
,
4058 struct gl_framebuffer
*buffer
,
4059 GLenum attachment
, GLenum pname
,
4060 GLint
*params
, const char *caller
)
4062 const struct gl_renderbuffer_attachment
*att
;
4063 bool is_color_attachment
= false;
4066 /* The error code for an attachment type of GL_NONE differs between APIs.
4068 * From the ES 2.0.25 specification, page 127:
4069 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
4070 * querying any other pname will generate INVALID_ENUM."
4072 * From the OpenGL 3.0 specification, page 337, or identically,
4073 * the OpenGL ES 3.0.4 specification, page 240:
4075 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, no
4076 * framebuffer is bound to target. In this case querying pname
4077 * FRAMEBUFFER_ATTACHMENT_OBJECT_NAME will return zero, and all other
4078 * queries will generate an INVALID_OPERATION error."
4080 err
= ctx
->API
== API_OPENGLES2
&& ctx
->Version
< 30 ?
4081 GL_INVALID_ENUM
: GL_INVALID_OPERATION
;
4083 if (_mesa_is_winsys_fbo(buffer
)) {
4084 /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
4087 * "If the framebuffer currently bound to target is zero, then
4088 * INVALID_OPERATION is generated."
4090 * The EXT_framebuffer_object spec has the same wording, and the
4091 * OES_framebuffer_object spec refers to the EXT_framebuffer_object
4094 if ((!_mesa_is_desktop_gl(ctx
) ||
4095 !ctx
->Extensions
.ARB_framebuffer_object
)
4096 && !_mesa_is_gles3(ctx
)) {
4097 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4098 "%s(window-system framebuffer)", caller
);
4102 if (_mesa_is_gles3(ctx
) && attachment
!= GL_BACK
&&
4103 attachment
!= GL_DEPTH
&& attachment
!= GL_STENCIL
) {
4104 _mesa_error(ctx
, GL_INVALID_ENUM
,
4105 "%s(invalid attachment %s)", caller
,
4106 _mesa_enum_to_string(attachment
));
4110 /* The specs are not clear about how to handle
4111 * GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME with the default framebuffer,
4112 * but dEQP-GLES3 expects an INVALID_ENUM error. This has also been
4115 * https://cvs.khronos.org/bugzilla/show_bug.cgi?id=12928#c1
4116 * and https://bugs.freedesktop.org/show_bug.cgi?id=31947
4118 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME
) {
4119 _mesa_error(ctx
, GL_INVALID_ENUM
,
4120 "%s(requesting GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME "
4121 "when GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is "
4122 "GL_FRAMEBUFFER_DEFAULT is not allowed)", caller
);
4126 /* the default / window-system FBO */
4127 att
= get_fb0_attachment(ctx
, buffer
, attachment
);
4130 /* user-created framebuffer FBO */
4131 att
= get_attachment(ctx
, buffer
, attachment
, &is_color_attachment
);
4136 * From OpenGL 4.5 spec, section 9.2.3 "Framebuffer Object Queries":
4138 * "An INVALID_OPERATION error is generated if a framebuffer object
4139 * is bound to target and attachment is COLOR_ATTACHMENTm where m is
4140 * greater than or equal to the value of MAX_COLOR_ATTACHMENTS."
4142 * If we are at this point, is because the attachment is not valid, so
4143 * if is_color_attachment is true, is because of the previous reason.
4145 if (is_color_attachment
) {
4146 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid color attachment %s)",
4147 caller
, _mesa_enum_to_string(attachment
));
4149 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", caller
,
4150 _mesa_enum_to_string(attachment
));
4155 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
4156 const struct gl_renderbuffer_attachment
*depthAtt
, *stencilAtt
;
4157 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
) {
4158 /* This behavior is first specified in OpenGL 4.4 specification.
4160 * From the OpenGL 4.4 spec page 275:
4161 * "This query cannot be performed for a combined depth+stencil
4162 * attachment, since it does not have a single format."
4164 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4165 "%s(GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE"
4166 " is invalid for depth+stencil attachment)", caller
);
4169 /* the depth and stencil attachments must point to the same buffer */
4170 depthAtt
= get_attachment(ctx
, buffer
, GL_DEPTH_ATTACHMENT
, NULL
);
4171 stencilAtt
= get_attachment(ctx
, buffer
, GL_STENCIL_ATTACHMENT
, NULL
);
4172 if (depthAtt
->Renderbuffer
!= stencilAtt
->Renderbuffer
) {
4173 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4174 "%s(DEPTH/STENCIL attachments differ)", caller
);
4179 /* No need to flush here */
4182 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
4183 /* From the OpenGL spec, 9.2. Binding and Managing Framebuffer Objects:
4185 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
4186 * either no framebuffer is bound to target; or the default framebuffer
4187 * is bound, attachment is DEPTH or STENCIL, and the number of depth or
4188 * stencil bits, respectively, is zero."
4190 * Note that we don't need explicit checks on DEPTH and STENCIL, because
4191 * on the case the spec is pointing, att->Type is already NONE, so we
4192 * just need to check att->Type.
4194 *params
= (_mesa_is_winsys_fbo(buffer
) && att
->Type
!= GL_NONE
) ?
4195 GL_FRAMEBUFFER_DEFAULT
: att
->Type
;
4197 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
4198 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
4199 *params
= att
->Renderbuffer
->Name
;
4201 else if (att
->Type
== GL_TEXTURE
) {
4202 *params
= att
->Texture
->Name
;
4205 assert(att
->Type
== GL_NONE
);
4206 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
4209 goto invalid_pname_enum
;
4213 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
4214 if (att
->Type
== GL_TEXTURE
) {
4215 *params
= att
->TextureLevel
;
4217 else if (att
->Type
== GL_NONE
) {
4218 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4219 _mesa_enum_to_string(pname
));
4222 goto invalid_pname_enum
;
4225 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
4226 if (att
->Type
== GL_TEXTURE
) {
4227 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
4228 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
4234 else if (att
->Type
== GL_NONE
) {
4235 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4236 _mesa_enum_to_string(pname
));
4239 goto invalid_pname_enum
;
4242 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
4243 if (ctx
->API
== API_OPENGLES
) {
4244 goto invalid_pname_enum
;
4245 } else if (att
->Type
== GL_NONE
) {
4246 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4247 _mesa_enum_to_string(pname
));
4248 } else if (att
->Type
== GL_TEXTURE
) {
4249 if (att
->Texture
&& (att
->Texture
->Target
== GL_TEXTURE_3D
||
4250 att
->Texture
->Target
== GL_TEXTURE_2D_ARRAY
)) {
4251 *params
= att
->Zoffset
;
4258 goto invalid_pname_enum
;
4261 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
:
4262 if ((!_mesa_is_desktop_gl(ctx
) ||
4263 !ctx
->Extensions
.ARB_framebuffer_object
)
4264 && !_mesa_is_gles3(ctx
)) {
4265 goto invalid_pname_enum
;
4267 else if (att
->Type
== GL_NONE
) {
4268 if (_mesa_is_winsys_fbo(buffer
) &&
4269 (attachment
== GL_DEPTH
|| attachment
== GL_STENCIL
)) {
4270 *params
= GL_LINEAR
;
4272 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4273 _mesa_enum_to_string(pname
));
4277 if (ctx
->Extensions
.EXT_sRGB
) {
4279 _mesa_get_format_color_encoding(att
->Renderbuffer
->Format
);
4282 /* According to ARB_framebuffer_sRGB, we should return LINEAR
4283 * if the sRGB conversion is unsupported. */
4284 *params
= GL_LINEAR
;
4288 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
:
4289 if ((ctx
->API
!= API_OPENGL_COMPAT
||
4290 !ctx
->Extensions
.ARB_framebuffer_object
)
4291 && ctx
->API
!= API_OPENGL_CORE
4292 && !_mesa_is_gles3(ctx
)) {
4293 goto invalid_pname_enum
;
4295 else if (att
->Type
== GL_NONE
) {
4296 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4297 _mesa_enum_to_string(pname
));
4300 mesa_format format
= att
->Renderbuffer
->Format
;
4302 /* Page 235 (page 247 of the PDF) in section 6.1.13 of the OpenGL ES
4305 * "If pname is FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE.... If
4306 * attachment is DEPTH_STENCIL_ATTACHMENT the query will fail and
4307 * generate an INVALID_OPERATION error.
4309 if (_mesa_is_gles3(ctx
) &&
4310 attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
4311 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4313 "GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE of "
4314 "GL_DEPTH_STENCIL_ATTACHMENT)", caller
);
4318 if (format
== MESA_FORMAT_S_UINT8
) {
4322 else if (format
== MESA_FORMAT_Z32_FLOAT_S8X24_UINT
) {
4323 /* depends on the attachment parameter */
4324 if (attachment
== GL_STENCIL_ATTACHMENT
) {
4332 *params
= _mesa_get_format_datatype(format
);
4336 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
4337 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
4338 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
4339 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
4340 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
4341 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
4342 if ((!_mesa_is_desktop_gl(ctx
) ||
4343 !ctx
->Extensions
.ARB_framebuffer_object
)
4344 && !_mesa_is_gles3(ctx
)) {
4345 goto invalid_pname_enum
;
4347 else if (att
->Texture
) {
4348 const struct gl_texture_image
*texImage
=
4349 _mesa_select_tex_image(att
->Texture
, att
->Texture
->Target
,
4352 *params
= get_component_bits(pname
, texImage
->_BaseFormat
,
4353 texImage
->TexFormat
);
4359 else if (att
->Renderbuffer
) {
4360 *params
= get_component_bits(pname
, att
->Renderbuffer
->_BaseFormat
,
4361 att
->Renderbuffer
->Format
);
4364 assert(att
->Type
== GL_NONE
);
4365 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4366 _mesa_enum_to_string(pname
));
4369 case GL_FRAMEBUFFER_ATTACHMENT_LAYERED
:
4370 if (!_mesa_has_geometry_shaders(ctx
)) {
4371 goto invalid_pname_enum
;
4372 } else if (att
->Type
== GL_TEXTURE
) {
4373 *params
= att
->Layered
;
4374 } else if (att
->Type
== GL_NONE
) {
4375 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4376 _mesa_enum_to_string(pname
));
4378 goto invalid_pname_enum
;
4381 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_SAMPLES_EXT
:
4382 if (!ctx
->Extensions
.EXT_multisampled_render_to_texture
) {
4383 goto invalid_pname_enum
;
4384 } else if (att
->Type
== GL_TEXTURE
) {
4385 *params
= att
->NumSamples
;
4386 } else if (att
->Type
== GL_NONE
) {
4387 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4388 _mesa_enum_to_string(pname
));
4390 goto invalid_pname_enum
;
4394 goto invalid_pname_enum
;
4400 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname %s)", caller
,
4401 _mesa_enum_to_string(pname
));
4407 _mesa_GetFramebufferAttachmentParameteriv(GLenum target
, GLenum attachment
,
4408 GLenum pname
, GLint
*params
)
4410 GET_CURRENT_CONTEXT(ctx
);
4411 struct gl_framebuffer
*buffer
;
4413 buffer
= get_framebuffer_target(ctx
, target
);
4415 _mesa_error(ctx
, GL_INVALID_ENUM
,
4416 "glGetFramebufferAttachmentParameteriv(invalid target %s)",
4417 _mesa_enum_to_string(target
));
4421 get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
4423 "glGetFramebufferAttachmentParameteriv");
4428 _mesa_GetNamedFramebufferAttachmentParameteriv(GLuint framebuffer
,
4430 GLenum pname
, GLint
*params
)
4432 GET_CURRENT_CONTEXT(ctx
);
4433 struct gl_framebuffer
*buffer
;
4436 buffer
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4437 "glGetNamedFramebufferAttachmentParameteriv");
4443 * Section 9.2 Binding and Managing Framebuffer Objects of the OpenGL
4444 * 4.5 core spec (30.10.2014, PDF page 314):
4445 * "If framebuffer is zero, then the default draw framebuffer is
4448 buffer
= ctx
->WinSysDrawBuffer
;
4451 get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
4453 "glGetNamedFramebufferAttachmentParameteriv");
4458 _mesa_NamedFramebufferParameteri(GLuint framebuffer
, GLenum pname
,
4461 GET_CURRENT_CONTEXT(ctx
);
4462 struct gl_framebuffer
*fb
= NULL
;
4464 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
4465 !ctx
->Extensions
.ARB_sample_locations
) {
4466 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4467 "glNamedFramebufferParameteri("
4468 "neither ARB_framebuffer_no_attachments nor "
4469 "ARB_sample_locations is available)");
4474 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4475 "glNamedFramebufferParameteri");
4477 fb
= ctx
->WinSysDrawBuffer
;
4481 framebuffer_parameteri(ctx
, fb
, pname
, param
,
4482 "glNamedFramebufferParameteriv");
4488 _mesa_GetNamedFramebufferParameteriv(GLuint framebuffer
, GLenum pname
,
4491 GET_CURRENT_CONTEXT(ctx
);
4492 struct gl_framebuffer
*fb
;
4494 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
4495 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4496 "glNamedFramebufferParameteriv("
4497 "neither ARB_framebuffer_no_attachments nor ARB_sample_locations"
4503 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4504 "glGetNamedFramebufferParameteriv");
4506 fb
= ctx
->WinSysDrawBuffer
;
4509 get_framebuffer_parameteriv(ctx
, fb
, pname
, param
,
4510 "glGetNamedFramebufferParameteriv");
4516 invalidate_framebuffer_storage(struct gl_context
*ctx
,
4517 struct gl_framebuffer
*fb
,
4518 GLsizei numAttachments
,
4519 const GLenum
*attachments
, GLint x
, GLint y
,
4520 GLsizei width
, GLsizei height
, const char *name
)
4524 /* Section 17.4 Whole Framebuffer Operations of the OpenGL 4.5 Core
4525 * Spec (2.2.2015, PDF page 522) says:
4526 * "An INVALID_VALUE error is generated if numAttachments, width, or
4527 * height is negative."
4529 if (numAttachments
< 0) {
4530 _mesa_error(ctx
, GL_INVALID_VALUE
,
4531 "%s(numAttachments < 0)", name
);
4536 _mesa_error(ctx
, GL_INVALID_VALUE
,
4537 "%s(width < 0)", name
);
4542 _mesa_error(ctx
, GL_INVALID_VALUE
,
4543 "%s(height < 0)", name
);
4547 /* The GL_ARB_invalidate_subdata spec says:
4549 * "If an attachment is specified that does not exist in the
4550 * framebuffer bound to <target>, it is ignored."
4554 * "If <attachments> contains COLOR_ATTACHMENTm and m is greater than
4555 * or equal to the value of MAX_COLOR_ATTACHMENTS, then the error
4556 * INVALID_OPERATION is generated."
4558 * No mention is made of GL_AUXi being out of range. Therefore, we allow
4559 * any enum that can be allowed by the API (OpenGL ES 3.0 has a different
4560 * set of retrictions).
4562 for (i
= 0; i
< numAttachments
; i
++) {
4563 if (_mesa_is_winsys_fbo(fb
)) {
4564 switch (attachments
[i
]) {
4570 /* Accumulation buffers and auxilary buffers were removed in
4571 * OpenGL 3.1, and they never existed in OpenGL ES.
4573 if (ctx
->API
!= API_OPENGL_COMPAT
)
4583 case GL_FRONT_RIGHT
:
4584 if (!_mesa_is_desktop_gl(ctx
))
4591 switch (attachments
[i
]) {
4592 case GL_DEPTH_ATTACHMENT
:
4593 case GL_STENCIL_ATTACHMENT
:
4595 case GL_DEPTH_STENCIL_ATTACHMENT
:
4596 /* GL_DEPTH_STENCIL_ATTACHMENT is a valid attachment point only
4597 * in desktop and ES 3.0 profiles. Note that OES_packed_depth_stencil
4598 * extension does not make this attachment point valid on ES 2.0.
4600 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
))
4603 case GL_COLOR_ATTACHMENT0
:
4604 case GL_COLOR_ATTACHMENT1
:
4605 case GL_COLOR_ATTACHMENT2
:
4606 case GL_COLOR_ATTACHMENT3
:
4607 case GL_COLOR_ATTACHMENT4
:
4608 case GL_COLOR_ATTACHMENT5
:
4609 case GL_COLOR_ATTACHMENT6
:
4610 case GL_COLOR_ATTACHMENT7
:
4611 case GL_COLOR_ATTACHMENT8
:
4612 case GL_COLOR_ATTACHMENT9
:
4613 case GL_COLOR_ATTACHMENT10
:
4614 case GL_COLOR_ATTACHMENT11
:
4615 case GL_COLOR_ATTACHMENT12
:
4616 case GL_COLOR_ATTACHMENT13
:
4617 case GL_COLOR_ATTACHMENT14
:
4618 case GL_COLOR_ATTACHMENT15
: {
4619 unsigned k
= attachments
[i
] - GL_COLOR_ATTACHMENT0
;
4620 if (k
>= ctx
->Const
.MaxColorAttachments
) {
4621 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4622 "%s(attachment >= max. color attachments)", name
);
4633 /* We don't actually do anything for this yet. Just return after
4634 * validating the parameters and generating the required errors.
4639 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", name
,
4640 _mesa_enum_to_string(attachments
[i
]));
4644 static struct gl_renderbuffer_attachment
*
4645 get_fb_attachment(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
4646 const GLenum attachment
)
4648 switch (attachment
) {
4650 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
4651 case GL_COLOR_ATTACHMENT0
:
4652 case GL_COLOR_ATTACHMENT1
:
4653 case GL_COLOR_ATTACHMENT2
:
4654 case GL_COLOR_ATTACHMENT3
:
4655 case GL_COLOR_ATTACHMENT4
:
4656 case GL_COLOR_ATTACHMENT5
:
4657 case GL_COLOR_ATTACHMENT6
:
4658 case GL_COLOR_ATTACHMENT7
:
4659 case GL_COLOR_ATTACHMENT8
:
4660 case GL_COLOR_ATTACHMENT9
:
4661 case GL_COLOR_ATTACHMENT10
:
4662 case GL_COLOR_ATTACHMENT11
:
4663 case GL_COLOR_ATTACHMENT12
:
4664 case GL_COLOR_ATTACHMENT13
:
4665 case GL_COLOR_ATTACHMENT14
:
4666 case GL_COLOR_ATTACHMENT15
: {
4667 const unsigned i
= attachment
- GL_COLOR_ATTACHMENT0
;
4668 if (i
>= ctx
->Const
.MaxColorAttachments
)
4670 return &fb
->Attachment
[BUFFER_COLOR0
+ i
];
4673 case GL_DEPTH_ATTACHMENT
:
4674 case GL_DEPTH_STENCIL_ATTACHMENT
:
4675 return &fb
->Attachment
[BUFFER_DEPTH
];
4677 case GL_STENCIL_ATTACHMENT
:
4678 return &fb
->Attachment
[BUFFER_STENCIL
];
4685 discard_framebuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
4686 GLsizei numAttachments
, const GLenum
*attachments
)
4688 if (!ctx
->Driver
.DiscardFramebuffer
)
4691 for (int i
= 0; i
< numAttachments
; i
++) {
4692 struct gl_renderbuffer_attachment
*att
=
4693 get_fb_attachment(ctx
, fb
, attachments
[i
]);
4698 /* If we're asked to invalidate just depth or just stencil, but the
4699 * attachment is packed depth/stencil, then we can only use
4700 * Driver.DiscardFramebuffer if the attachments list includes both depth
4701 * and stencil and they both point at the same renderbuffer.
4703 if ((attachments
[i
] == GL_DEPTH_ATTACHMENT
||
4704 attachments
[i
] == GL_STENCIL_ATTACHMENT
) &&
4705 (!att
->Renderbuffer
||
4706 att
->Renderbuffer
->_BaseFormat
== GL_DEPTH_STENCIL
)) {
4707 GLenum other_format
= (attachments
[i
] == GL_DEPTH_ATTACHMENT
?
4708 GL_STENCIL_ATTACHMENT
: GL_DEPTH_ATTACHMENT
);
4709 bool has_both
= false;
4710 for (int j
= 0; j
< numAttachments
; j
++) {
4711 if (attachments
[j
] == other_format
)
4716 if (fb
->Attachment
[BUFFER_DEPTH
].Renderbuffer
!=
4717 fb
->Attachment
[BUFFER_STENCIL
].Renderbuffer
|| !has_both
)
4721 ctx
->Driver
.DiscardFramebuffer(ctx
, fb
, att
);
4726 _mesa_InvalidateSubFramebuffer_no_error(GLenum target
, GLsizei numAttachments
,
4727 const GLenum
*attachments
, GLint x
,
4728 GLint y
, GLsizei width
, GLsizei height
)
4735 _mesa_InvalidateSubFramebuffer(GLenum target
, GLsizei numAttachments
,
4736 const GLenum
*attachments
, GLint x
, GLint y
,
4737 GLsizei width
, GLsizei height
)
4739 struct gl_framebuffer
*fb
;
4740 GET_CURRENT_CONTEXT(ctx
);
4742 fb
= get_framebuffer_target(ctx
, target
);
4744 _mesa_error(ctx
, GL_INVALID_ENUM
,
4745 "glInvalidateSubFramebuffer(invalid target %s)",
4746 _mesa_enum_to_string(target
));
4750 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4751 x
, y
, width
, height
,
4752 "glInvalidateSubFramebuffer");
4757 _mesa_InvalidateNamedFramebufferSubData(GLuint framebuffer
,
4758 GLsizei numAttachments
,
4759 const GLenum
*attachments
,
4761 GLsizei width
, GLsizei height
)
4763 struct gl_framebuffer
*fb
;
4764 GET_CURRENT_CONTEXT(ctx
);
4766 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
4767 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
4768 * default draw framebuffer is affected."
4771 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4772 "glInvalidateNamedFramebufferSubData");
4777 fb
= ctx
->WinSysDrawBuffer
;
4779 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4780 x
, y
, width
, height
,
4781 "glInvalidateNamedFramebufferSubData");
4785 _mesa_InvalidateFramebuffer_no_error(GLenum target
, GLsizei numAttachments
,
4786 const GLenum
*attachments
)
4788 struct gl_framebuffer
*fb
;
4789 GET_CURRENT_CONTEXT(ctx
);
4791 fb
= get_framebuffer_target(ctx
, target
);
4795 discard_framebuffer(ctx
, fb
, numAttachments
, attachments
);
4800 _mesa_InvalidateFramebuffer(GLenum target
, GLsizei numAttachments
,
4801 const GLenum
*attachments
)
4803 struct gl_framebuffer
*fb
;
4804 GET_CURRENT_CONTEXT(ctx
);
4806 fb
= get_framebuffer_target(ctx
, target
);
4808 _mesa_error(ctx
, GL_INVALID_ENUM
,
4809 "glInvalidateFramebuffer(invalid target %s)",
4810 _mesa_enum_to_string(target
));
4814 /* The GL_ARB_invalidate_subdata spec says:
4818 * void InvalidateFramebuffer(enum target,
4819 * sizei numAttachments,
4820 * const enum *attachments);
4822 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
4823 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
4824 * <MAX_VIEWPORT_DIMS[1]> respectively."
4826 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4828 ctx
->Const
.MaxViewportWidth
,
4829 ctx
->Const
.MaxViewportHeight
,
4830 "glInvalidateFramebuffer");
4832 discard_framebuffer(ctx
, fb
, numAttachments
, attachments
);
4837 _mesa_InvalidateNamedFramebufferData(GLuint framebuffer
,
4838 GLsizei numAttachments
,
4839 const GLenum
*attachments
)
4841 struct gl_framebuffer
*fb
;
4842 GET_CURRENT_CONTEXT(ctx
);
4844 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
4845 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
4846 * default draw framebuffer is affected."
4849 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4850 "glInvalidateNamedFramebufferData");
4855 fb
= ctx
->WinSysDrawBuffer
;
4857 /* The GL_ARB_invalidate_subdata spec says:
4861 * void InvalidateFramebuffer(enum target,
4862 * sizei numAttachments,
4863 * const enum *attachments);
4865 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
4866 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
4867 * <MAX_VIEWPORT_DIMS[1]> respectively."
4869 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4871 ctx
->Const
.MaxViewportWidth
,
4872 ctx
->Const
.MaxViewportHeight
,
4873 "glInvalidateNamedFramebufferData");
4878 _mesa_DiscardFramebufferEXT(GLenum target
, GLsizei numAttachments
,
4879 const GLenum
*attachments
)
4881 struct gl_framebuffer
*fb
;
4884 GET_CURRENT_CONTEXT(ctx
);
4886 fb
= get_framebuffer_target(ctx
, target
);
4888 _mesa_error(ctx
, GL_INVALID_ENUM
,
4889 "glDiscardFramebufferEXT(target %s)",
4890 _mesa_enum_to_string(target
));
4894 if (numAttachments
< 0) {
4895 _mesa_error(ctx
, GL_INVALID_VALUE
,
4896 "glDiscardFramebufferEXT(numAttachments < 0)");
4900 for (i
= 0; i
< numAttachments
; i
++) {
4901 switch (attachments
[i
]) {
4905 if (_mesa_is_user_fbo(fb
))
4908 case GL_COLOR_ATTACHMENT0
:
4909 case GL_DEPTH_ATTACHMENT
:
4910 case GL_STENCIL_ATTACHMENT
:
4911 if (_mesa_is_winsys_fbo(fb
))
4919 discard_framebuffer(ctx
, fb
, numAttachments
, attachments
);
4924 _mesa_error(ctx
, GL_INVALID_ENUM
,
4925 "glDiscardFramebufferEXT(attachment %s)",
4926 _mesa_enum_to_string(attachments
[i
]));
4930 sample_locations(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
4931 GLuint start
, GLsizei count
, const GLfloat
*v
, bool no_error
,
4937 if (!ctx
->Extensions
.ARB_sample_locations
) {
4938 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4940 "(ARB_sample_locations not available)", name
);
4944 if (start
+ count
> MAX_SAMPLE_LOCATION_TABLE_SIZE
) {
4945 _mesa_error(ctx
, GL_INVALID_VALUE
,
4946 "%s(start+size > sample location table size)", name
);
4951 if (!fb
->SampleLocationTable
) {
4952 size_t size
= MAX_SAMPLE_LOCATION_TABLE_SIZE
* 2 * sizeof(GLfloat
);
4953 fb
->SampleLocationTable
= malloc(size
);
4954 if (!fb
->SampleLocationTable
) {
4955 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
4956 "Cannot allocate sample location table");
4959 for (i
= 0; i
< MAX_SAMPLE_LOCATION_TABLE_SIZE
* 2; i
++)
4960 fb
->SampleLocationTable
[i
] = 0.5f
;
4963 for (i
= 0; i
< count
* 2; i
++) {
4964 /* The ARB_sample_locations spec says:
4966 * Sample locations outside of [0,1] result in undefined
4969 * To simplify driver implementations, we choose to clamp to
4970 * [0,1] and change NaN into 0.5.
4972 if (isnan(v
[i
]) || v
[i
] < 0.0f
|| v
[i
] > 1.0f
) {
4973 static GLuint msg_id
= 0;
4974 static const char* msg
= "Invalid sample location specified";
4975 _mesa_debug_get_id(&msg_id
);
4977 _mesa_log_msg(ctx
, MESA_DEBUG_SOURCE_API
, MESA_DEBUG_TYPE_UNDEFINED
,
4978 msg_id
, MESA_DEBUG_SEVERITY_HIGH
, strlen(msg
), msg
);
4982 fb
->SampleLocationTable
[start
* 2 + i
] = 0.5f
;
4984 fb
->SampleLocationTable
[start
* 2 + i
] = CLAMP(v
[i
], 0.0f
, 1.0f
);
4987 if (fb
== ctx
->DrawBuffer
)
4988 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleLocations
;
4992 _mesa_FramebufferSampleLocationsfvARB(GLenum target
, GLuint start
,
4993 GLsizei count
, const GLfloat
*v
)
4995 struct gl_framebuffer
*fb
;
4997 GET_CURRENT_CONTEXT(ctx
);
4999 fb
= get_framebuffer_target(ctx
, target
);
5001 _mesa_error(ctx
, GL_INVALID_ENUM
,
5002 "glFramebufferSampleLocationsfvARB(target %s)",
5003 _mesa_enum_to_string(target
));
5007 sample_locations(ctx
, fb
, start
, count
, v
, false,
5008 "glFramebufferSampleLocationsfvARB");
5012 _mesa_NamedFramebufferSampleLocationsfvARB(GLuint framebuffer
, GLuint start
,
5013 GLsizei count
, const GLfloat
*v
)
5015 struct gl_framebuffer
*fb
;
5017 GET_CURRENT_CONTEXT(ctx
);
5020 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
5021 "glNamedFramebufferSampleLocationsfvARB");
5026 fb
= ctx
->WinSysDrawBuffer
;
5028 sample_locations(ctx
, fb
, start
, count
, v
, false,
5029 "glNamedFramebufferSampleLocationsfvARB");
5033 _mesa_FramebufferSampleLocationsfvARB_no_error(GLenum target
, GLuint start
,
5034 GLsizei count
, const GLfloat
*v
)
5036 GET_CURRENT_CONTEXT(ctx
);
5037 sample_locations(ctx
, get_framebuffer_target(ctx
, target
), start
,
5038 count
, v
, true, "glFramebufferSampleLocationsfvARB");
5042 _mesa_NamedFramebufferSampleLocationsfvARB_no_error(GLuint framebuffer
,
5043 GLuint start
, GLsizei count
,
5046 GET_CURRENT_CONTEXT(ctx
);
5047 sample_locations(ctx
, _mesa_lookup_framebuffer(ctx
, framebuffer
), start
,
5048 count
, v
, true, "glNamedFramebufferSampleLocationsfvARB");
5052 _mesa_EvaluateDepthValuesARB(void)
5054 GET_CURRENT_CONTEXT(ctx
);
5056 if (!ctx
->Extensions
.ARB_sample_locations
) {
5057 _mesa_error(ctx
, GL_INVALID_OPERATION
,
5058 "EvaluateDepthValuesARB not supported (neither "
5059 "ARB_sample_locations nor NV_sample_locations is available)");
5063 if (ctx
->Driver
.EvaluateDepthValues
)
5064 ctx
->Driver
.EvaluateDepthValues(ctx
);