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;
1007 fb
->_FP32Buffers
= 0;
1009 /* Start at -2 to more easily loop over all attachment points.
1011 * -1: stencil buffer
1014 for (i
= -2; i
< (GLint
) ctx
->Const
.MaxColorAttachments
; i
++) {
1015 struct gl_renderbuffer_attachment
*att
;
1017 mesa_format attFormat
;
1018 GLenum att_tex_target
= GL_NONE
;
1021 * XXX for ARB_fbo, only check color buffers that are named by
1022 * GL_READ_BUFFER and GL_DRAW_BUFFERi.
1025 /* check for attachment completeness
1028 att
= &fb
->Attachment
[BUFFER_DEPTH
];
1029 test_attachment_completeness(ctx
, GL_DEPTH
, att
);
1030 if (!att
->Complete
) {
1031 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1032 fbo_incomplete(ctx
, "depth attachment incomplete", -1);
1034 } else if (att
->Type
!= GL_NONE
) {
1035 has_depth_attachment
= true;
1039 att
= &fb
->Attachment
[BUFFER_STENCIL
];
1040 test_attachment_completeness(ctx
, GL_STENCIL
, att
);
1041 if (!att
->Complete
) {
1042 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1043 fbo_incomplete(ctx
, "stencil attachment incomplete", -1);
1045 } else if (att
->Type
!= GL_NONE
) {
1046 has_stencil_attachment
= true;
1050 att
= &fb
->Attachment
[BUFFER_COLOR0
+ i
];
1051 test_attachment_completeness(ctx
, GL_COLOR
, att
);
1052 if (!att
->Complete
) {
1053 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
1054 fbo_incomplete(ctx
, "color attachment incomplete", i
);
1059 /* get width, height, format of the renderbuffer/texture
1061 unsigned attNumSamples
, attNumStorageSamples
;
1063 if (att
->Type
== GL_TEXTURE
) {
1064 const struct gl_texture_image
*texImg
= att
->Renderbuffer
->TexImage
;
1065 att_tex_target
= att
->Texture
->Target
;
1066 minWidth
= MIN2(minWidth
, texImg
->Width
);
1067 maxWidth
= MAX2(maxWidth
, texImg
->Width
);
1068 minHeight
= MIN2(minHeight
, texImg
->Height
);
1069 maxHeight
= MAX2(maxHeight
, texImg
->Height
);
1070 f
= texImg
->_BaseFormat
;
1071 attFormat
= texImg
->TexFormat
;
1074 if (!is_format_color_renderable(ctx
, attFormat
,
1075 texImg
->InternalFormat
) &&
1076 !is_legal_depth_format(ctx
, f
) &&
1077 f
!= GL_STENCIL_INDEX
) {
1078 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT
;
1079 fbo_incomplete(ctx
, "texture attachment incomplete", -1);
1083 if (fixedSampleLocations
< 0)
1084 fixedSampleLocations
= texImg
->FixedSampleLocations
;
1085 else if (fixedSampleLocations
!= texImg
->FixedSampleLocations
) {
1086 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1087 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1091 if (att
->NumSamples
> 0)
1092 attNumSamples
= att
->NumSamples
;
1094 attNumSamples
= texImg
->NumSamples
;
1095 attNumStorageSamples
= attNumSamples
;
1097 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
1098 minWidth
= MIN2(minWidth
, att
->Renderbuffer
->Width
);
1099 maxWidth
= MAX2(minWidth
, att
->Renderbuffer
->Width
);
1100 minHeight
= MIN2(minHeight
, att
->Renderbuffer
->Height
);
1101 maxHeight
= MAX2(minHeight
, att
->Renderbuffer
->Height
);
1102 f
= att
->Renderbuffer
->InternalFormat
;
1103 attFormat
= att
->Renderbuffer
->Format
;
1106 /* RENDERBUFFER has fixedSampleLocations implicitly true */
1107 if (fixedSampleLocations
< 0)
1108 fixedSampleLocations
= GL_TRUE
;
1109 else if (fixedSampleLocations
!= GL_TRUE
) {
1110 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1111 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1115 attNumSamples
= att
->Renderbuffer
->NumSamples
;
1116 attNumStorageSamples
= att
->Renderbuffer
->NumStorageSamples
;
1119 assert(att
->Type
== GL_NONE
);
1124 /* Color buffers. */
1125 if (numColorSamples
< 0) {
1126 assert(numColorStorageSamples
< 0);
1127 numColorSamples
= attNumSamples
;
1128 numColorStorageSamples
= attNumStorageSamples
;
1129 } else if (numColorSamples
!= attNumSamples
||
1130 numColorStorageSamples
!= attNumStorageSamples
) {
1131 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1132 fbo_incomplete(ctx
, "inconsistent sample counts", -1);
1136 /* Depth/stencil buffers. */
1137 if (numDepthSamples
< 0) {
1138 numDepthSamples
= attNumSamples
;
1139 } else if (numDepthSamples
!= attNumSamples
) {
1140 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1141 fbo_incomplete(ctx
, "inconsistent sample counts", -1);
1146 /* Update flags describing color buffer datatypes */
1148 GLenum type
= _mesa_get_format_datatype(attFormat
);
1150 /* check if integer color */
1151 if (_mesa_is_format_integer_color(attFormat
))
1152 fb
->_IntegerBuffers
|= (1 << i
);
1155 fb
->_RGBBuffers
|= (1 << i
);
1157 if (type
== GL_FLOAT
&& _mesa_get_format_max_bits(attFormat
) > 16)
1158 fb
->_FP32Buffers
|= (1 << i
);
1160 fb
->_AllColorBuffersFixedPoint
=
1161 fb
->_AllColorBuffersFixedPoint
&&
1162 (type
== GL_UNSIGNED_NORMALIZED
|| type
== GL_SIGNED_NORMALIZED
);
1164 fb
->_HasSNormOrFloatColorBuffer
=
1165 fb
->_HasSNormOrFloatColorBuffer
||
1166 type
== GL_SIGNED_NORMALIZED
|| type
== GL_FLOAT
;
1169 /* Error-check width, height, format */
1170 if (numImages
== 1) {
1177 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
1178 /* check that width, height, format are same */
1179 if (minWidth
!= maxWidth
|| minHeight
!= maxHeight
) {
1180 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
;
1181 fbo_incomplete(ctx
, "width or height mismatch", -1);
1184 /* check that all color buffers are the same format */
1185 if (intFormat
!= GL_NONE
&& f
!= intFormat
) {
1186 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
1187 fbo_incomplete(ctx
, "format mismatch", -1);
1193 /* Check that the format is valid. (MESA_FORMAT_NONE means unsupported)
1195 if (att
->Type
== GL_RENDERBUFFER
&&
1196 att
->Renderbuffer
->Format
== MESA_FORMAT_NONE
) {
1197 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1198 fbo_incomplete(ctx
, "unsupported renderbuffer format", i
);
1202 /* Check that layered rendering is consistent. */
1204 if (att_tex_target
== GL_TEXTURE_CUBE_MAP
)
1205 att_layer_count
= 6;
1206 else if (att_tex_target
== GL_TEXTURE_1D_ARRAY
)
1207 att_layer_count
= att
->Renderbuffer
->Height
;
1209 att_layer_count
= att
->Renderbuffer
->Depth
;
1211 att_layer_count
= 0;
1213 if (!layer_info_valid
) {
1214 is_layered
= att
->Layered
;
1215 max_layer_count
= att_layer_count
;
1216 layer_tex_target
= att_tex_target
;
1217 layer_info_valid
= true;
1218 } else if (max_layer_count
> 0 && layer_tex_target
!= att_tex_target
) {
1219 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1220 fbo_incomplete(ctx
, "layered framebuffer has mismatched targets", i
);
1222 } else if (is_layered
!= att
->Layered
) {
1223 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1225 "framebuffer attachment layer mode is inconsistent",
1228 } else if (att_layer_count
> max_layer_count
) {
1229 max_layer_count
= att_layer_count
;
1233 * The extension GL_ARB_framebuffer_no_attachments places additional
1234 * requirement on each attachment. Those additional requirements are
1235 * tighter that those of previous versions of GL. In interest of better
1236 * compatibility, we will not enforce these restrictions. For the record
1237 * those additional restrictions are quoted below:
1239 * "The width and height of image are greater than zero and less than or
1240 * equal to the values of the implementation-dependent limits
1241 * MAX_FRAMEBUFFER_WIDTH and MAX_FRAMEBUFFER_HEIGHT, respectively."
1243 * "If <image> is a three-dimensional texture or a one- or two-dimensional
1244 * array texture and the attachment is layered, the depth or layer count
1245 * of the texture is less than or equal to the implementation-dependent
1246 * limit MAX_FRAMEBUFFER_LAYERS."
1248 * "If image has multiple samples, its sample count is less than or equal
1249 * to the value of the implementation-dependent limit
1250 * MAX_FRAMEBUFFER_SAMPLES."
1252 * The same requirements are also in place for GL 4.5,
1253 * Section 9.4.1 "Framebuffer Attachment Completeness", pg 310-311
1257 if (ctx
->Extensions
.AMD_framebuffer_multisample_advanced
) {
1258 /* See if non-matching sample counts are supported. */
1259 if (numColorSamples
>= 0 && numDepthSamples
>= 0) {
1262 assert(numColorStorageSamples
!= -1);
1264 numColorSamples
= MAX2(numColorSamples
, 1);
1265 numColorStorageSamples
= MAX2(numColorStorageSamples
, 1);
1266 numDepthSamples
= MAX2(numDepthSamples
, 1);
1268 if (numColorSamples
== 1 && numColorStorageSamples
== 1 &&
1269 numDepthSamples
== 1) {
1272 for (i
= 0; i
< ctx
->Const
.NumSupportedMultisampleModes
; i
++) {
1274 &ctx
->Const
.SupportedMultisampleModes
[i
].NumColorSamples
;
1276 if (counts
[0] == numColorSamples
&&
1277 counts
[1] == numColorStorageSamples
&&
1278 counts
[2] == numDepthSamples
) {
1286 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1287 fbo_incomplete(ctx
, "unsupported sample counts", -1);
1292 /* If the extension is unsupported, all sample counts must be equal. */
1293 if (numColorSamples
>= 0 &&
1294 (numColorSamples
!= numColorStorageSamples
||
1295 (numDepthSamples
>= 0 && numColorSamples
!= numDepthSamples
))) {
1296 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1297 fbo_incomplete(ctx
, "inconsistent sample counts", -1);
1302 fb
->MaxNumLayers
= max_layer_count
;
1304 if (numImages
== 0) {
1305 fb
->_HasAttachments
= false;
1307 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
1308 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1309 fbo_incomplete(ctx
, "no attachments", -1);
1313 if (fb
->DefaultGeometry
.Width
== 0 || fb
->DefaultGeometry
.Height
== 0) {
1314 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1315 fbo_incomplete(ctx
, "no attachments and default width or height is 0", -1);
1320 if (_mesa_is_desktop_gl(ctx
) && !ctx
->Extensions
.ARB_ES2_compatibility
) {
1321 /* Check that all DrawBuffers are present */
1322 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
1323 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
1324 const struct gl_renderbuffer_attachment
*att
1325 = get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
], NULL
);
1327 if (att
->Type
== GL_NONE
) {
1328 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
1329 fbo_incomplete(ctx
, "missing drawbuffer", j
);
1335 /* Check that the ReadBuffer is present */
1336 if (fb
->ColorReadBuffer
!= GL_NONE
) {
1337 const struct gl_renderbuffer_attachment
*att
1338 = get_attachment(ctx
, fb
, fb
->ColorReadBuffer
, NULL
);
1340 if (att
->Type
== GL_NONE
) {
1341 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
1342 fbo_incomplete(ctx
, "missing readbuffer", -1);
1348 /* The OpenGL ES3 spec, in chapter 9.4. FRAMEBUFFER COMPLETENESS, says:
1350 * "Depth and stencil attachments, if present, are the same image."
1352 * This restriction is not present in the OpenGL ES2 spec.
1354 if (_mesa_is_gles3(ctx
) &&
1355 has_stencil_attachment
&& has_depth_attachment
&&
1356 !_mesa_has_depthstencil_combined(fb
)) {
1357 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1358 fbo_incomplete(ctx
, "Depth and stencil attachments must be the same image", -1);
1362 /* Provisionally set status = COMPLETE ... */
1363 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
1365 /* ... but the driver may say the FB is incomplete.
1366 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
1369 if (ctx
->Driver
.ValidateFramebuffer
) {
1370 ctx
->Driver
.ValidateFramebuffer(ctx
, fb
);
1371 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1372 fbo_incomplete(ctx
, "driver marked FBO as incomplete", -1);
1378 * Note that if ARB_framebuffer_object is supported and the attached
1379 * renderbuffers/textures are different sizes, the framebuffer
1380 * width/height will be set to the smallest width/height.
1382 if (numImages
!= 0) {
1383 fb
->Width
= minWidth
;
1384 fb
->Height
= minHeight
;
1387 /* finally, update the visual info for the framebuffer */
1388 _mesa_update_framebuffer_visual(ctx
, fb
);
1392 GLboolean GLAPIENTRY
1393 _mesa_IsRenderbuffer(GLuint renderbuffer
)
1395 struct gl_renderbuffer
*rb
;
1397 GET_CURRENT_CONTEXT(ctx
);
1399 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1401 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1402 return rb
!= NULL
&& rb
!= &DummyRenderbuffer
;
1406 static struct gl_renderbuffer
*
1407 allocate_renderbuffer_locked(struct gl_context
*ctx
, GLuint renderbuffer
,
1410 struct gl_renderbuffer
*newRb
;
1412 /* create new renderbuffer object */
1413 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
1415 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
1418 assert(newRb
->AllocStorage
);
1419 _mesa_HashInsertLocked(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
1426 bind_renderbuffer(GLenum target
, GLuint renderbuffer
)
1428 struct gl_renderbuffer
*newRb
;
1429 GET_CURRENT_CONTEXT(ctx
);
1431 if (target
!= GL_RENDERBUFFER_EXT
) {
1432 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindRenderbufferEXT(target)");
1436 /* No need to flush here since the render buffer binding has no
1437 * effect on rendering state.
1441 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1442 if (newRb
== &DummyRenderbuffer
) {
1443 /* ID was reserved, but no real renderbuffer object made yet */
1446 else if (!newRb
&& ctx
->API
== API_OPENGL_CORE
) {
1447 /* All RB IDs must be Gen'd */
1448 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1449 "glBindRenderbuffer(non-gen name)");
1454 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
1455 newRb
= allocate_renderbuffer_locked(ctx
, renderbuffer
,
1456 "glBindRenderbufferEXT");
1457 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
1464 assert(newRb
!= &DummyRenderbuffer
);
1466 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
1470 _mesa_BindRenderbuffer(GLenum target
, GLuint renderbuffer
)
1472 /* OpenGL ES glBindRenderbuffer and glBindRenderbufferOES use this same
1473 * entry point, but they allow the use of user-generated names.
1475 bind_renderbuffer(target
, renderbuffer
);
1479 _mesa_BindRenderbufferEXT(GLenum target
, GLuint renderbuffer
)
1481 bind_renderbuffer(target
, renderbuffer
);
1485 * ARB_framebuffer_no_attachment and ARB_sample_locations - Application passes
1486 * requested param's here. NOTE: NumSamples requested need not be _NumSamples
1487 * which is what the hw supports.
1490 framebuffer_parameteri(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1491 GLenum pname
, GLint param
, const char *func
)
1493 bool cannot_be_winsys_fbo
= false;
1496 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1497 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1498 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1499 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1500 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1501 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
)
1502 goto invalid_pname_enum
;
1503 cannot_be_winsys_fbo
= true;
1505 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1506 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1507 if (!ctx
->Extensions
.ARB_sample_locations
)
1508 goto invalid_pname_enum
;
1510 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1511 if (!ctx
->Extensions
.MESA_framebuffer_flip_y
)
1512 goto invalid_pname_enum
;
1513 cannot_be_winsys_fbo
= true;
1516 goto invalid_pname_enum
;
1519 if (cannot_be_winsys_fbo
&& _mesa_is_winsys_fbo(fb
)) {
1520 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1521 "%s(invalid pname=0x%x for default framebuffer)", func
, pname
);
1526 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1527 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferWidth
)
1528 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1530 fb
->DefaultGeometry
.Width
= param
;
1532 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1533 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferHeight
)
1534 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1536 fb
->DefaultGeometry
.Height
= param
;
1538 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1540 * According to the OpenGL ES 3.1 specification section 9.2.1, the
1541 * GL_FRAMEBUFFER_DEFAULT_LAYERS parameter name is not supported.
1543 if (_mesa_is_gles31(ctx
) && !ctx
->Extensions
.OES_geometry_shader
) {
1544 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1547 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferLayers
)
1548 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1550 fb
->DefaultGeometry
.Layers
= param
;
1552 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1553 if (param
< 0 || param
> ctx
->Const
.MaxFramebufferSamples
)
1554 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s", func
);
1556 fb
->DefaultGeometry
.NumSamples
= param
;
1558 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1559 fb
->DefaultGeometry
.FixedSampleLocations
= param
;
1561 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1562 fb
->ProgrammableSampleLocations
= !!param
;
1564 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1565 fb
->SampleLocationPixelGrid
= !!param
;
1567 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1573 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1574 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1575 if (fb
== ctx
->DrawBuffer
)
1576 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleLocations
;
1579 invalidate_framebuffer(fb
);
1580 ctx
->NewState
|= _NEW_BUFFERS
;
1587 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1591 _mesa_FramebufferParameteri(GLenum target
, GLenum pname
, GLint param
)
1593 GET_CURRENT_CONTEXT(ctx
);
1594 struct gl_framebuffer
*fb
;
1596 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
1597 !ctx
->Extensions
.ARB_sample_locations
) {
1598 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1599 "glFramebufferParameteriv not supported "
1600 "(neither ARB_framebuffer_no_attachments nor ARB_sample_locations"
1605 fb
= get_framebuffer_target(ctx
, target
);
1607 _mesa_error(ctx
, GL_INVALID_ENUM
,
1608 "glFramebufferParameteri(target=0x%x)", target
);
1612 framebuffer_parameteri(ctx
, fb
, pname
, param
, "glFramebufferParameteri");
1616 validate_get_framebuffer_parameteriv_pname(struct gl_context
*ctx
,
1617 struct gl_framebuffer
*fb
,
1618 GLuint pname
, const char *func
)
1620 bool cannot_be_winsys_fbo
= true;
1623 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1625 * According to the OpenGL ES 3.1 specification section 9.2.3, the
1626 * GL_FRAMEBUFFER_LAYERS parameter name is not supported.
1628 if (_mesa_is_gles31(ctx
) && !ctx
->Extensions
.OES_geometry_shader
) {
1629 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1633 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1634 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1635 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1636 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1638 case GL_DOUBLEBUFFER
:
1639 case GL_IMPLEMENTATION_COLOR_READ_FORMAT
:
1640 case GL_IMPLEMENTATION_COLOR_READ_TYPE
:
1642 case GL_SAMPLE_BUFFERS
:
1644 /* From OpenGL 4.5 spec, section 9.2.3 "Framebuffer Object Queries:
1646 * "An INVALID_OPERATION error is generated by GetFramebufferParameteriv
1647 * if the default framebuffer is bound to target and pname is not one
1648 * of the accepted values from table 23.73, other than
1651 * For OpenGL ES, using default framebuffer raises INVALID_OPERATION
1654 cannot_be_winsys_fbo
= !_mesa_is_desktop_gl(ctx
);
1656 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1657 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1658 if (!ctx
->Extensions
.ARB_sample_locations
)
1659 goto invalid_pname_enum
;
1660 cannot_be_winsys_fbo
= false;
1662 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1663 if (!ctx
->Extensions
.MESA_framebuffer_flip_y
) {
1664 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1669 goto invalid_pname_enum
;
1672 if (cannot_be_winsys_fbo
&& _mesa_is_winsys_fbo(fb
)) {
1673 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1674 "%s(invalid pname=0x%x for default framebuffer)", func
, pname
);
1681 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(pname=0x%x)", func
, pname
);
1686 get_framebuffer_parameteriv(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
1687 GLenum pname
, GLint
*params
, const char *func
)
1689 if (!validate_get_framebuffer_parameteriv_pname(ctx
, fb
, pname
, func
))
1693 case GL_FRAMEBUFFER_DEFAULT_WIDTH
:
1694 *params
= fb
->DefaultGeometry
.Width
;
1696 case GL_FRAMEBUFFER_DEFAULT_HEIGHT
:
1697 *params
= fb
->DefaultGeometry
.Height
;
1699 case GL_FRAMEBUFFER_DEFAULT_LAYERS
:
1700 *params
= fb
->DefaultGeometry
.Layers
;
1702 case GL_FRAMEBUFFER_DEFAULT_SAMPLES
:
1703 *params
= fb
->DefaultGeometry
.NumSamples
;
1705 case GL_FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS
:
1706 *params
= fb
->DefaultGeometry
.FixedSampleLocations
;
1708 case GL_DOUBLEBUFFER
:
1709 *params
= fb
->Visual
.doubleBufferMode
;
1711 case GL_IMPLEMENTATION_COLOR_READ_FORMAT
:
1712 *params
= _mesa_get_color_read_format(ctx
, fb
, func
);
1714 case GL_IMPLEMENTATION_COLOR_READ_TYPE
:
1715 *params
= _mesa_get_color_read_type(ctx
, fb
, func
);
1718 *params
= _mesa_geometric_samples(fb
);
1720 case GL_SAMPLE_BUFFERS
:
1721 *params
= _mesa_geometric_samples(fb
) > 0;
1724 *params
= fb
->Visual
.stereoMode
;
1726 case GL_FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS_ARB
:
1727 *params
= fb
->ProgrammableSampleLocations
;
1729 case GL_FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID_ARB
:
1730 *params
= fb
->SampleLocationPixelGrid
;
1732 case GL_FRAMEBUFFER_FLIP_Y_MESA
:
1733 *params
= fb
->FlipY
;
1739 _mesa_GetFramebufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
1741 GET_CURRENT_CONTEXT(ctx
);
1742 struct gl_framebuffer
*fb
;
1744 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
1745 !ctx
->Extensions
.ARB_sample_locations
) {
1746 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1747 "glGetFramebufferParameteriv not supported "
1748 "(neither ARB_framebuffer_no_attachments nor ARB_sample_locations"
1753 fb
= get_framebuffer_target(ctx
, target
);
1755 _mesa_error(ctx
, GL_INVALID_ENUM
,
1756 "glGetFramebufferParameteriv(target=0x%x)", target
);
1760 get_framebuffer_parameteriv(ctx
, fb
, pname
, params
,
1761 "glGetFramebufferParameteriv");
1766 * Remove the specified renderbuffer or texture from any attachment point in
1770 * \c true if the renderbuffer was detached from an attachment point. \c
1774 _mesa_detach_renderbuffer(struct gl_context
*ctx
,
1775 struct gl_framebuffer
*fb
,
1779 bool progress
= false;
1781 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1782 if (fb
->Attachment
[i
].Texture
== att
1783 || fb
->Attachment
[i
].Renderbuffer
== att
) {
1784 remove_attachment(ctx
, &fb
->Attachment
[i
]);
1789 /* Section 4.4.4 (Framebuffer Completeness), subsection "Whole Framebuffer
1790 * Completeness," of the OpenGL 3.1 spec says:
1792 * "Performing any of the following actions may change whether the
1793 * framebuffer is considered complete or incomplete:
1797 * - Deleting, with DeleteTextures or DeleteRenderbuffers, an object
1798 * containing an image that is attached to a framebuffer object
1799 * that is bound to the framebuffer."
1802 invalidate_framebuffer(fb
);
1809 _mesa_DeleteRenderbuffers(GLsizei n
, const GLuint
*renderbuffers
)
1812 GET_CURRENT_CONTEXT(ctx
);
1815 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteRenderbuffers(n < 0)");
1819 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1821 for (i
= 0; i
< n
; i
++) {
1822 if (renderbuffers
[i
] > 0) {
1823 struct gl_renderbuffer
*rb
;
1824 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
1826 /* check if deleting currently bound renderbuffer object */
1827 if (rb
== ctx
->CurrentRenderbuffer
) {
1829 assert(rb
->RefCount
>= 2);
1830 _mesa_BindRenderbuffer(GL_RENDERBUFFER_EXT
, 0);
1833 /* Section 4.4.2 (Attaching Images to Framebuffer Objects),
1834 * subsection "Attaching Renderbuffer Images to a Framebuffer,"
1835 * of the OpenGL 3.1 spec says:
1837 * "If a renderbuffer object is deleted while its image is
1838 * attached to one or more attachment points in the currently
1839 * bound framebuffer, then it is as if FramebufferRenderbuffer
1840 * had been called, with a renderbuffer of 0, for each
1841 * attachment point to which this image was attached in the
1842 * currently bound framebuffer. In other words, this
1843 * renderbuffer image is first detached from all attachment
1844 * points in the currently bound framebuffer. Note that the
1845 * renderbuffer image is specifically not detached from any
1846 * non-bound framebuffers. Detaching the image from any
1847 * non-bound framebuffers is the responsibility of the
1850 if (_mesa_is_user_fbo(ctx
->DrawBuffer
)) {
1851 _mesa_detach_renderbuffer(ctx
, ctx
->DrawBuffer
, rb
);
1853 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)
1854 && ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
1855 _mesa_detach_renderbuffer(ctx
, ctx
->ReadBuffer
, rb
);
1858 /* Remove from hash table immediately, to free the ID.
1859 * But the object will not be freed until it's no longer
1860 * referenced anywhere else.
1862 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
1864 if (rb
!= &DummyRenderbuffer
) {
1865 /* no longer referenced by hash table */
1866 _mesa_reference_renderbuffer(&rb
, NULL
);
1874 create_render_buffers(struct gl_context
*ctx
, GLsizei n
, GLuint
*renderbuffers
,
1877 const char *func
= dsa
? "glCreateRenderbuffers" : "glGenRenderbuffers";
1884 _mesa_HashLockMutex(ctx
->Shared
->RenderBuffers
);
1886 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
1888 for (i
= 0; i
< n
; i
++) {
1889 GLuint name
= first
+ i
;
1890 renderbuffers
[i
] = name
;
1893 allocate_renderbuffer_locked(ctx
, name
, func
);
1895 /* insert a dummy renderbuffer into the hash table */
1896 _mesa_HashInsertLocked(ctx
->Shared
->RenderBuffers
, name
,
1897 &DummyRenderbuffer
);
1901 _mesa_HashUnlockMutex(ctx
->Shared
->RenderBuffers
);
1906 create_render_buffers_err(struct gl_context
*ctx
, GLsizei n
,
1907 GLuint
*renderbuffers
, bool dsa
)
1909 const char *func
= dsa
? "glCreateRenderbuffers" : "glGenRenderbuffers";
1912 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n<0)", func
);
1916 create_render_buffers(ctx
, n
, renderbuffers
, dsa
);
1921 _mesa_GenRenderbuffers_no_error(GLsizei n
, GLuint
*renderbuffers
)
1923 GET_CURRENT_CONTEXT(ctx
);
1924 create_render_buffers(ctx
, n
, renderbuffers
, false);
1929 _mesa_GenRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1931 GET_CURRENT_CONTEXT(ctx
);
1932 create_render_buffers_err(ctx
, n
, renderbuffers
, false);
1937 _mesa_CreateRenderbuffers_no_error(GLsizei n
, GLuint
*renderbuffers
)
1939 GET_CURRENT_CONTEXT(ctx
);
1940 create_render_buffers(ctx
, n
, renderbuffers
, true);
1945 _mesa_CreateRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1947 GET_CURRENT_CONTEXT(ctx
);
1948 create_render_buffers_err(ctx
, n
, renderbuffers
, true);
1953 * Given an internal format token for a render buffer, return the
1954 * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
1955 * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,
1956 * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).
1958 * This is similar to _mesa_base_tex_format() but the set of valid
1959 * internal formats is different.
1961 * Note that even if a format is determined to be legal here, validation
1962 * of the FBO may fail if the format is not supported by the driver/GPU.
1964 * \param internalFormat as passed to glRenderbufferStorage()
1965 * \return the base internal format, or 0 if internalFormat is illegal
1968 _mesa_base_fbo_format(const struct gl_context
*ctx
, GLenum internalFormat
)
1971 * Notes: some formats such as alpha, luminance, etc. were added
1972 * with GL_ARB_framebuffer_object.
1974 switch (internalFormat
) {
1980 return (ctx
->API
== API_OPENGL_COMPAT
&&
1981 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_ALPHA
: 0;
1985 case GL_LUMINANCE12
:
1986 case GL_LUMINANCE16
:
1987 return (ctx
->API
== API_OPENGL_COMPAT
&&
1988 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE
: 0;
1989 case GL_LUMINANCE_ALPHA
:
1990 case GL_LUMINANCE4_ALPHA4
:
1991 case GL_LUMINANCE6_ALPHA2
:
1992 case GL_LUMINANCE8_ALPHA8
:
1993 case GL_LUMINANCE12_ALPHA4
:
1994 case GL_LUMINANCE12_ALPHA12
:
1995 case GL_LUMINANCE16_ALPHA16
:
1996 return (ctx
->API
== API_OPENGL_COMPAT
&&
1997 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_LUMINANCE_ALPHA
: 0;
2001 case GL_INTENSITY12
:
2002 case GL_INTENSITY16
:
2003 return (ctx
->API
== API_OPENGL_COMPAT
&&
2004 ctx
->Extensions
.ARB_framebuffer_object
) ? GL_INTENSITY
: 0;
2014 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
2016 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
2024 return _mesa_is_desktop_gl(ctx
) ? GL_RGBA
: 0;
2026 return _mesa_is_desktop_gl(ctx
) || _mesa_has_EXT_texture_norm16(ctx
)
2029 case GL_SRGB8_ALPHA8_EXT
:
2030 return _mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
2031 case GL_STENCIL_INDEX
:
2032 case GL_STENCIL_INDEX1_EXT
:
2033 case GL_STENCIL_INDEX4_EXT
:
2034 case GL_STENCIL_INDEX16_EXT
:
2035 /* There are extensions for GL_STENCIL_INDEX1 and GL_STENCIL_INDEX4 in
2036 * OpenGL ES, but Mesa does not currently support them.
2038 return _mesa_is_desktop_gl(ctx
) ? GL_STENCIL_INDEX
: 0;
2039 case GL_STENCIL_INDEX8_EXT
:
2040 return GL_STENCIL_INDEX
;
2041 case GL_DEPTH_COMPONENT
:
2042 case GL_DEPTH_COMPONENT32
:
2043 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_COMPONENT
: 0;
2044 case GL_DEPTH_COMPONENT16
:
2045 case GL_DEPTH_COMPONENT24
:
2046 return GL_DEPTH_COMPONENT
;
2047 case GL_DEPTH_STENCIL
:
2048 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_STENCIL
: 0;
2049 case GL_DEPTH24_STENCIL8
:
2050 return GL_DEPTH_STENCIL
;
2051 case GL_DEPTH_COMPONENT32F
:
2052 return ctx
->Version
>= 30
2053 || (ctx
->API
== API_OPENGL_COMPAT
&&
2054 ctx
->Extensions
.ARB_depth_buffer_float
)
2055 ? GL_DEPTH_COMPONENT
: 0;
2056 case GL_DEPTH32F_STENCIL8
:
2057 return ctx
->Version
>= 30
2058 || (ctx
->API
== API_OPENGL_COMPAT
&&
2059 ctx
->Extensions
.ARB_depth_buffer_float
)
2060 ? GL_DEPTH_STENCIL
: 0;
2062 return _mesa_has_ARB_texture_rg(ctx
) ? GL_RED
: 0;
2064 return _mesa_has_ARB_texture_rg(ctx
) || _mesa_has_EXT_texture_norm16(ctx
)
2067 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
2070 return _mesa_has_ARB_texture_rg(ctx
) ? GL_RG
: 0;
2072 return _mesa_has_ARB_texture_rg(ctx
) || _mesa_has_EXT_texture_norm16(ctx
)
2075 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
2077 /* signed normalized texture formats */
2079 return _mesa_has_EXT_texture_snorm(ctx
) || _mesa_has_EXT_render_snorm(ctx
)
2082 return _mesa_has_EXT_texture_snorm(ctx
) ? GL_RED
: 0;
2084 return _mesa_has_EXT_texture_snorm(ctx
) ||
2085 (_mesa_has_EXT_render_snorm(ctx
) &&
2086 _mesa_has_EXT_texture_norm16(ctx
))
2089 return _mesa_has_EXT_texture_snorm(ctx
) || _mesa_has_EXT_render_snorm(ctx
)
2092 return _mesa_has_EXT_texture_snorm(ctx
) ? GL_RG
: 0;
2094 return _mesa_has_EXT_texture_snorm(ctx
) ||
2095 (_mesa_has_EXT_render_snorm(ctx
) &&
2096 _mesa_has_EXT_texture_norm16(ctx
))
2100 case GL_RGB16_SNORM
:
2101 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2103 case GL_RGBA8_SNORM
:
2104 return _mesa_has_EXT_texture_snorm(ctx
) || _mesa_has_EXT_render_snorm(ctx
)
2107 return _mesa_has_EXT_texture_snorm(ctx
) ? GL_RGBA
: 0;
2108 case GL_RGBA16_SNORM
:
2109 return _mesa_has_EXT_texture_snorm(ctx
) ||
2110 (_mesa_has_EXT_render_snorm(ctx
) &&
2111 _mesa_has_EXT_texture_norm16(ctx
))
2113 case GL_ALPHA_SNORM
:
2114 case GL_ALPHA8_SNORM
:
2115 case GL_ALPHA16_SNORM
:
2116 return ctx
->API
== API_OPENGL_COMPAT
&&
2117 ctx
->Extensions
.EXT_texture_snorm
&&
2118 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
2119 case GL_LUMINANCE_SNORM
:
2120 case GL_LUMINANCE8_SNORM
:
2121 case GL_LUMINANCE16_SNORM
:
2122 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2124 case GL_LUMINANCE_ALPHA_SNORM
:
2125 case GL_LUMINANCE8_ALPHA8_SNORM
:
2126 case GL_LUMINANCE16_ALPHA16_SNORM
:
2127 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2128 ? GL_LUMINANCE_ALPHA
: 0;
2129 case GL_INTENSITY_SNORM
:
2130 case GL_INTENSITY8_SNORM
:
2131 case GL_INTENSITY16_SNORM
:
2132 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
2137 return ((_mesa_is_desktop_gl(ctx
) &&
2138 ctx
->Extensions
.ARB_texture_rg
&&
2139 ctx
->Extensions
.ARB_texture_float
) ||
2140 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2144 return ((_mesa_is_desktop_gl(ctx
) &&
2145 ctx
->Extensions
.ARB_texture_rg
&&
2146 ctx
->Extensions
.ARB_texture_float
) ||
2147 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2151 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_float
)
2155 return ((_mesa_is_desktop_gl(ctx
) &&
2156 ctx
->Extensions
.ARB_texture_float
) ||
2157 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2160 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_shared_exponent
)
2162 case GL_ALPHA16F_ARB
:
2163 case GL_ALPHA32F_ARB
:
2164 return ctx
->API
== API_OPENGL_COMPAT
&&
2165 ctx
->Extensions
.ARB_texture_float
&&
2166 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
2167 case GL_LUMINANCE16F_ARB
:
2168 case GL_LUMINANCE32F_ARB
:
2169 return ctx
->API
== API_OPENGL_COMPAT
&&
2170 ctx
->Extensions
.ARB_texture_float
&&
2171 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
2172 case GL_LUMINANCE_ALPHA16F_ARB
:
2173 case GL_LUMINANCE_ALPHA32F_ARB
:
2174 return ctx
->API
== API_OPENGL_COMPAT
&&
2175 ctx
->Extensions
.ARB_texture_float
&&
2176 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
2177 case GL_INTENSITY16F_ARB
:
2178 case GL_INTENSITY32F_ARB
:
2179 return ctx
->API
== API_OPENGL_COMPAT
&&
2180 ctx
->Extensions
.ARB_texture_float
&&
2181 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
2182 case GL_R11F_G11F_B10F
:
2183 return ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_packed_float
) ||
2184 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
2187 case GL_RGBA8UI_EXT
:
2188 case GL_RGBA16UI_EXT
:
2189 case GL_RGBA32UI_EXT
:
2191 case GL_RGBA16I_EXT
:
2192 case GL_RGBA32I_EXT
:
2193 return ctx
->Version
>= 30
2194 || (_mesa_is_desktop_gl(ctx
) &&
2195 ctx
->Extensions
.EXT_texture_integer
) ? GL_RGBA
: 0;
2198 case GL_RGB16UI_EXT
:
2199 case GL_RGB32UI_EXT
:
2203 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_integer
2211 return ctx
->Version
>= 30
2212 || (_mesa_is_desktop_gl(ctx
) &&
2213 ctx
->Extensions
.ARB_texture_rg
&&
2214 ctx
->Extensions
.EXT_texture_integer
) ? GL_RED
: 0;
2222 return ctx
->Version
>= 30
2223 || (_mesa_is_desktop_gl(ctx
) &&
2224 ctx
->Extensions
.ARB_texture_rg
&&
2225 ctx
->Extensions
.EXT_texture_integer
) ? GL_RG
: 0;
2227 case GL_INTENSITY8I_EXT
:
2228 case GL_INTENSITY8UI_EXT
:
2229 case GL_INTENSITY16I_EXT
:
2230 case GL_INTENSITY16UI_EXT
:
2231 case GL_INTENSITY32I_EXT
:
2232 case GL_INTENSITY32UI_EXT
:
2233 return ctx
->API
== API_OPENGL_COMPAT
&&
2234 ctx
->Extensions
.EXT_texture_integer
&&
2235 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
2237 case GL_LUMINANCE8I_EXT
:
2238 case GL_LUMINANCE8UI_EXT
:
2239 case GL_LUMINANCE16I_EXT
:
2240 case GL_LUMINANCE16UI_EXT
:
2241 case GL_LUMINANCE32I_EXT
:
2242 case GL_LUMINANCE32UI_EXT
:
2243 return ctx
->API
== API_OPENGL_COMPAT
&&
2244 ctx
->Extensions
.EXT_texture_integer
&&
2245 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
2247 case GL_LUMINANCE_ALPHA8I_EXT
:
2248 case GL_LUMINANCE_ALPHA8UI_EXT
:
2249 case GL_LUMINANCE_ALPHA16I_EXT
:
2250 case GL_LUMINANCE_ALPHA16UI_EXT
:
2251 case GL_LUMINANCE_ALPHA32I_EXT
:
2252 case GL_LUMINANCE_ALPHA32UI_EXT
:
2253 return ctx
->API
== API_OPENGL_COMPAT
&&
2254 ctx
->Extensions
.EXT_texture_integer
&&
2255 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
2257 case GL_ALPHA8I_EXT
:
2258 case GL_ALPHA8UI_EXT
:
2259 case GL_ALPHA16I_EXT
:
2260 case GL_ALPHA16UI_EXT
:
2261 case GL_ALPHA32I_EXT
:
2262 case GL_ALPHA32UI_EXT
:
2263 return ctx
->API
== API_OPENGL_COMPAT
&&
2264 ctx
->Extensions
.EXT_texture_integer
&&
2265 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
2268 return (_mesa_is_desktop_gl(ctx
) &&
2269 ctx
->Extensions
.ARB_texture_rgb10_a2ui
)
2270 || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
2273 return _mesa_is_gles(ctx
) || ctx
->Extensions
.ARB_ES2_compatibility
2282 * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk().
2285 invalidate_rb(GLuint key
, void *data
, void *userData
)
2287 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
2288 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) userData
;
2290 /* If this is a user-created FBO */
2291 if (_mesa_is_user_fbo(fb
)) {
2293 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2294 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2295 if (att
->Type
== GL_RENDERBUFFER
&&
2296 att
->Renderbuffer
== rb
) {
2297 /* Mark fb status as indeterminate to force re-validation */
2306 /** sentinal value, see below */
2307 #define NO_SAMPLES 1000
2310 _mesa_renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2311 GLenum internalFormat
, GLsizei width
,
2312 GLsizei height
, GLsizei samples
,
2313 GLsizei storageSamples
)
2315 const GLenum baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
2317 assert(baseFormat
!= 0);
2318 assert(width
>= 0 && width
<= (GLsizei
) ctx
->Const
.MaxRenderbufferSize
);
2319 assert(height
>= 0 && height
<= (GLsizei
) ctx
->Const
.MaxRenderbufferSize
);
2320 assert(samples
!= NO_SAMPLES
);
2322 assert(samples
> 0);
2323 assert(_mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
2324 internalFormat
, samples
,
2325 storageSamples
) == GL_NO_ERROR
);
2328 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2330 if (rb
->InternalFormat
== internalFormat
&&
2331 rb
->Width
== (GLuint
) width
&&
2332 rb
->Height
== (GLuint
) height
&&
2333 rb
->NumSamples
== samples
&&
2334 rb
->NumStorageSamples
== storageSamples
) {
2335 /* no change in allocation needed */
2339 /* These MUST get set by the AllocStorage func */
2340 rb
->Format
= MESA_FORMAT_NONE
;
2341 rb
->NumSamples
= samples
;
2342 rb
->NumStorageSamples
= storageSamples
;
2344 /* Now allocate the storage */
2345 assert(rb
->AllocStorage
);
2346 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
2347 /* No error - check/set fields now */
2348 /* If rb->Format == MESA_FORMAT_NONE, the format is unsupported. */
2349 assert(rb
->Width
== (GLuint
) width
);
2350 assert(rb
->Height
== (GLuint
) height
);
2351 rb
->InternalFormat
= internalFormat
;
2352 rb
->_BaseFormat
= baseFormat
;
2353 assert(rb
->_BaseFormat
!= 0);
2356 /* Probably ran out of memory - clear the fields */
2359 rb
->Format
= MESA_FORMAT_NONE
;
2360 rb
->InternalFormat
= GL_NONE
;
2361 rb
->_BaseFormat
= GL_NONE
;
2363 rb
->NumStorageSamples
= 0;
2366 /* Invalidate the framebuffers the renderbuffer is attached in. */
2367 if (rb
->AttachedAnytime
) {
2368 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, invalidate_rb
, rb
);
2373 * Helper function used by renderbuffer_storage_direct() and
2374 * renderbuffer_storage_target().
2375 * samples will be NO_SAMPLES if called by a non-multisample function.
2378 renderbuffer_storage(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
,
2379 GLenum internalFormat
, GLsizei width
,
2380 GLsizei height
, GLsizei samples
, GLsizei storageSamples
,
2384 GLenum sample_count_error
;
2386 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
2387 if (baseFormat
== 0) {
2388 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalFormat=%s)",
2389 func
, _mesa_enum_to_string(internalFormat
));
2393 if (width
< 0 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2394 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid width %d)", func
,
2399 if (height
< 0 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
2400 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(invalid height %d)", func
,
2405 if (samples
== NO_SAMPLES
) {
2406 /* NumSamples == 0 indicates non-multisampling */
2411 /* check the sample count;
2412 * note: driver may choose to use more samples than what's requested
2414 sample_count_error
= _mesa_check_sample_count(ctx
, GL_RENDERBUFFER
,
2415 internalFormat
, samples
, storageSamples
);
2417 /* Section 2.5 (GL Errors) of OpenGL 3.0 specification, page 16:
2419 * "If a negative number is provided where an argument of type sizei or
2420 * sizeiptr is specified, the error INVALID VALUE is generated."
2422 if (samples
< 0 || storageSamples
< 0) {
2423 sample_count_error
= GL_INVALID_VALUE
;
2426 if (sample_count_error
!= GL_NO_ERROR
) {
2427 _mesa_error(ctx
, sample_count_error
,
2428 "%s(samples=%d, storageSamples=%d)", func
, samples
,
2434 _mesa_renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
,
2439 * Helper function used by _mesa_NamedRenderbufferStorage*().
2440 * samples will be NO_SAMPLES if called by a non-multisample function.
2443 renderbuffer_storage_named(GLuint renderbuffer
, GLenum internalFormat
,
2444 GLsizei width
, GLsizei height
, GLsizei samples
,
2445 GLsizei storageSamples
, const char *func
)
2447 GET_CURRENT_CONTEXT(ctx
);
2449 if (MESA_VERBOSE
& VERBOSE_API
) {
2450 if (samples
== NO_SAMPLES
)
2451 _mesa_debug(ctx
, "%s(%u, %s, %d, %d)\n",
2453 _mesa_enum_to_string(internalFormat
),
2456 _mesa_debug(ctx
, "%s(%u, %s, %d, %d, %d)\n",
2458 _mesa_enum_to_string(internalFormat
),
2459 width
, height
, samples
);
2462 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2463 if (!rb
|| rb
== &DummyRenderbuffer
) {
2464 /* ID was reserved, but no real renderbuffer object made yet */
2465 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid renderbuffer %u)",
2466 func
, renderbuffer
);
2470 renderbuffer_storage(ctx
, rb
, internalFormat
, width
, height
, samples
,
2471 storageSamples
, func
);
2475 * Helper function used by _mesa_RenderbufferStorage() and
2476 * _mesa_RenderbufferStorageMultisample().
2477 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorage().
2480 renderbuffer_storage_target(GLenum target
, GLenum internalFormat
,
2481 GLsizei width
, GLsizei height
, GLsizei samples
,
2482 GLsizei storageSamples
, const char *func
)
2484 GET_CURRENT_CONTEXT(ctx
);
2486 if (MESA_VERBOSE
& VERBOSE_API
) {
2487 if (samples
== NO_SAMPLES
)
2488 _mesa_debug(ctx
, "%s(%s, %s, %d, %d)\n",
2490 _mesa_enum_to_string(target
),
2491 _mesa_enum_to_string(internalFormat
),
2494 _mesa_debug(ctx
, "%s(%s, %s, %d, %d, %d)\n",
2496 _mesa_enum_to_string(target
),
2497 _mesa_enum_to_string(internalFormat
),
2498 width
, height
, samples
);
2501 if (target
!= GL_RENDERBUFFER_EXT
) {
2502 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
2506 if (!ctx
->CurrentRenderbuffer
) {
2507 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(no renderbuffer bound)",
2512 renderbuffer_storage(ctx
, ctx
->CurrentRenderbuffer
, internalFormat
, width
,
2513 height
, samples
, storageSamples
, func
);
2518 _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target
, GLeglImageOES image
)
2520 struct gl_renderbuffer
*rb
;
2521 GET_CURRENT_CONTEXT(ctx
);
2523 if (!ctx
->Extensions
.OES_EGL_image
) {
2524 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2525 "glEGLImageTargetRenderbufferStorageOES(unsupported)");
2529 if (target
!= GL_RENDERBUFFER
) {
2530 _mesa_error(ctx
, GL_INVALID_ENUM
,
2531 "EGLImageTargetRenderbufferStorageOES");
2535 rb
= ctx
->CurrentRenderbuffer
;
2537 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2538 "EGLImageTargetRenderbufferStorageOES");
2542 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2544 ctx
->Driver
.EGLImageTargetRenderbufferStorage(ctx
, rb
, image
);
2549 * Helper function for _mesa_GetRenderbufferParameteriv() and
2550 * _mesa_GetFramebufferAttachmentParameteriv()
2551 * We have to be careful to respect the base format. For example, if a
2552 * renderbuffer/texture was created with internalFormat=GL_RGB but the
2553 * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
2554 * we need to return zero.
2557 get_component_bits(GLenum pname
, GLenum baseFormat
, mesa_format format
)
2559 if (_mesa_base_format_has_channel(baseFormat
, pname
))
2560 return _mesa_get_format_bits(format
, pname
);
2568 _mesa_RenderbufferStorage(GLenum target
, GLenum internalFormat
,
2569 GLsizei width
, GLsizei height
)
2571 /* GL_ARB_fbo says calling this function is equivalent to calling
2572 * glRenderbufferStorageMultisample() with samples=0. We pass in
2573 * a token value here just for error reporting purposes.
2575 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2576 NO_SAMPLES
, 0, "glRenderbufferStorage");
2581 _mesa_RenderbufferStorageMultisample(GLenum target
, GLsizei samples
,
2582 GLenum internalFormat
,
2583 GLsizei width
, GLsizei height
)
2585 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2587 "glRenderbufferStorageMultisample");
2592 _mesa_RenderbufferStorageMultisampleAdvancedAMD(
2593 GLenum target
, GLsizei samples
, GLsizei storageSamples
,
2594 GLenum internalFormat
, GLsizei width
, GLsizei height
)
2596 renderbuffer_storage_target(target
, internalFormat
, width
, height
,
2597 samples
, storageSamples
,
2598 "glRenderbufferStorageMultisampleAdvancedAMD");
2603 * OpenGL ES version of glRenderBufferStorage.
2606 _es_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
2607 GLsizei width
, GLsizei height
)
2609 switch (internalFormat
) {
2611 /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
2612 /* choose a closest format */
2613 internalFormat
= GL_RGB5
;
2619 renderbuffer_storage_target(target
, internalFormat
, width
, height
, 0, 0,
2620 "glRenderbufferStorageEXT");
2624 _mesa_NamedRenderbufferStorage(GLuint renderbuffer
, GLenum internalformat
,
2625 GLsizei width
, GLsizei height
)
2627 /* GL_ARB_fbo says calling this function is equivalent to calling
2628 * glRenderbufferStorageMultisample() with samples=0. We pass in
2629 * a token value here just for error reporting purposes.
2631 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2632 NO_SAMPLES
, 0, "glNamedRenderbufferStorage");
2636 _mesa_NamedRenderbufferStorageMultisample(GLuint renderbuffer
, GLsizei samples
,
2637 GLenum internalformat
,
2638 GLsizei width
, GLsizei height
)
2640 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2642 "glNamedRenderbufferStorageMultisample");
2647 _mesa_NamedRenderbufferStorageMultisampleAdvancedAMD(
2648 GLuint renderbuffer
, GLsizei samples
, GLsizei storageSamples
,
2649 GLenum internalformat
, GLsizei width
, GLsizei height
)
2651 renderbuffer_storage_named(renderbuffer
, internalformat
, width
, height
,
2652 samples
, storageSamples
,
2653 "glNamedRenderbufferStorageMultisampleAdvancedAMD");
2658 get_render_buffer_parameteriv(struct gl_context
*ctx
,
2659 struct gl_renderbuffer
*rb
, GLenum pname
,
2660 GLint
*params
, const char *func
)
2662 /* No need to flush here since we're just quering state which is
2663 * not effected by rendering.
2667 case GL_RENDERBUFFER_WIDTH_EXT
:
2668 *params
= rb
->Width
;
2670 case GL_RENDERBUFFER_HEIGHT_EXT
:
2671 *params
= rb
->Height
;
2673 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
2674 *params
= rb
->InternalFormat
;
2676 case GL_RENDERBUFFER_RED_SIZE_EXT
:
2677 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
2678 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
2679 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
2680 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
2681 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
2682 *params
= get_component_bits(pname
, rb
->_BaseFormat
, rb
->Format
);
2684 case GL_RENDERBUFFER_SAMPLES
:
2685 if ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_framebuffer_object
)
2686 || _mesa_is_gles3(ctx
)) {
2687 *params
= rb
->NumSamples
;
2691 case GL_RENDERBUFFER_STORAGE_SAMPLES_AMD
:
2692 if (ctx
->Extensions
.AMD_framebuffer_multisample_advanced
) {
2693 *params
= rb
->NumStorageSamples
;
2699 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname=%s)", func
,
2700 _mesa_enum_to_string(pname
));
2705 _mesa_GetRenderbufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
2707 GET_CURRENT_CONTEXT(ctx
);
2709 if (target
!= GL_RENDERBUFFER_EXT
) {
2710 _mesa_error(ctx
, GL_INVALID_ENUM
,
2711 "glGetRenderbufferParameterivEXT(target)");
2715 if (!ctx
->CurrentRenderbuffer
) {
2716 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetRenderbufferParameterivEXT"
2717 "(no renderbuffer bound)");
2721 get_render_buffer_parameteriv(ctx
, ctx
->CurrentRenderbuffer
, pname
,
2722 params
, "glGetRenderbufferParameteriv");
2727 _mesa_GetNamedRenderbufferParameteriv(GLuint renderbuffer
, GLenum pname
,
2730 GET_CURRENT_CONTEXT(ctx
);
2732 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2733 if (!rb
|| rb
== &DummyRenderbuffer
) {
2734 /* ID was reserved, but no real renderbuffer object made yet */
2735 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glGetNamedRenderbufferParameteriv"
2736 "(invalid renderbuffer %i)", renderbuffer
);
2740 get_render_buffer_parameteriv(ctx
, rb
, pname
, params
,
2741 "glGetNamedRenderbufferParameteriv");
2745 GLboolean GLAPIENTRY
2746 _mesa_IsFramebuffer(GLuint framebuffer
)
2748 GET_CURRENT_CONTEXT(ctx
);
2749 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
2751 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2752 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
2760 * Check if any of the attachments of the given framebuffer are textures
2761 * (render to texture). Call ctx->Driver.RenderTexture() for such
2765 check_begin_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2768 assert(ctx
->Driver
.RenderTexture
);
2770 if (_mesa_is_winsys_fbo(fb
))
2771 return; /* can't render to texture with winsys framebuffers */
2773 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2774 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2775 if (att
->Texture
&& att
->Renderbuffer
->TexImage
2776 && driver_RenderTexture_is_safe(att
)) {
2777 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
2784 * Examine all the framebuffer's attachments to see if any are textures.
2785 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
2786 * notify the device driver that the texture image may have changed.
2789 check_end_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
2791 /* Skip if we know NeedsFinishRenderTexture won't be set. */
2792 if (_mesa_is_winsys_fbo(fb
) && !ctx
->Driver
.BindRenderbufferTexImage
)
2795 if (ctx
->Driver
.FinishRenderTexture
) {
2797 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
2798 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
2799 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
2800 if (rb
&& rb
->NeedsFinishRenderTexture
) {
2801 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
2809 bind_framebuffer(GLenum target
, GLuint framebuffer
)
2811 struct gl_framebuffer
*newDrawFb
, *newReadFb
;
2812 GLboolean bindReadBuf
, bindDrawBuf
;
2813 GET_CURRENT_CONTEXT(ctx
);
2816 case GL_DRAW_FRAMEBUFFER_EXT
:
2817 bindDrawBuf
= GL_TRUE
;
2818 bindReadBuf
= GL_FALSE
;
2820 case GL_READ_FRAMEBUFFER_EXT
:
2821 bindDrawBuf
= GL_FALSE
;
2822 bindReadBuf
= GL_TRUE
;
2824 case GL_FRAMEBUFFER_EXT
:
2825 bindDrawBuf
= GL_TRUE
;
2826 bindReadBuf
= GL_TRUE
;
2829 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
2834 /* Binding a user-created framebuffer object */
2835 newDrawFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2836 if (newDrawFb
== &DummyFramebuffer
) {
2837 /* ID was reserved, but no real framebuffer object made yet */
2840 else if (!newDrawFb
&& ctx
->API
== API_OPENGL_CORE
) {
2841 /* All FBO IDs must be Gen'd */
2842 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2843 "glBindFramebuffer(non-gen name)");
2848 /* create new framebuffer object */
2849 newDrawFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
2851 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
2854 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newDrawFb
);
2856 newReadFb
= newDrawFb
;
2859 /* Binding the window system framebuffer (which was originally set
2860 * with MakeCurrent).
2862 newDrawFb
= ctx
->WinSysDrawBuffer
;
2863 newReadFb
= ctx
->WinSysReadBuffer
;
2866 _mesa_bind_framebuffers(ctx
,
2867 bindDrawBuf
? newDrawFb
: ctx
->DrawBuffer
,
2868 bindReadBuf
? newReadFb
: ctx
->ReadBuffer
);
2872 _mesa_bind_framebuffers(struct gl_context
*ctx
,
2873 struct gl_framebuffer
*newDrawFb
,
2874 struct gl_framebuffer
*newReadFb
)
2876 struct gl_framebuffer
*const oldDrawFb
= ctx
->DrawBuffer
;
2877 struct gl_framebuffer
*const oldReadFb
= ctx
->ReadBuffer
;
2878 const bool bindDrawBuf
= oldDrawFb
!= newDrawFb
;
2879 const bool bindReadBuf
= oldReadFb
!= newReadFb
;
2882 assert(newDrawFb
!= &DummyFramebuffer
);
2885 * OK, now bind the new Draw/Read framebuffers, if they're changing.
2887 * We also check if we're beginning and/or ending render-to-texture.
2888 * When a framebuffer with texture attachments is unbound, call
2889 * ctx->Driver.FinishRenderTexture().
2890 * When a framebuffer with texture attachments is bound, call
2891 * ctx->Driver.RenderTexture().
2893 * Note that if the ReadBuffer has texture attachments we don't consider
2894 * that a render-to-texture case.
2897 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2899 /* check if old readbuffer was render-to-texture */
2900 check_end_texture_render(ctx
, oldReadFb
);
2902 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newReadFb
);
2906 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2907 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleLocations
;
2909 /* check if old framebuffer had any texture attachments */
2911 check_end_texture_render(ctx
, oldDrawFb
);
2913 /* check if newly bound framebuffer has any texture attachments */
2914 check_begin_texture_render(ctx
, newDrawFb
);
2916 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newDrawFb
);
2919 if ((bindDrawBuf
|| bindReadBuf
) && ctx
->Driver
.BindFramebuffer
) {
2920 /* The few classic drivers that actually hook this function really only
2921 * want to know if the draw framebuffer changed.
2923 ctx
->Driver
.BindFramebuffer(ctx
,
2924 bindDrawBuf
? GL_FRAMEBUFFER
: GL_READ_FRAMEBUFFER
,
2925 newDrawFb
, newReadFb
);
2930 _mesa_BindFramebuffer(GLenum target
, GLuint framebuffer
)
2932 /* OpenGL ES glBindFramebuffer and glBindFramebufferOES use this same entry
2933 * point, but they allow the use of user-generated names.
2935 bind_framebuffer(target
, framebuffer
);
2940 _mesa_BindFramebufferEXT(GLenum target
, GLuint framebuffer
)
2942 bind_framebuffer(target
, framebuffer
);
2947 _mesa_DeleteFramebuffers(GLsizei n
, const GLuint
*framebuffers
)
2950 GET_CURRENT_CONTEXT(ctx
);
2953 _mesa_error(ctx
, GL_INVALID_VALUE
, "glDeleteFramebuffers(n < 0)");
2957 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2959 for (i
= 0; i
< n
; i
++) {
2960 if (framebuffers
[i
] > 0) {
2961 struct gl_framebuffer
*fb
;
2962 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
2964 assert(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
2966 /* check if deleting currently bound framebuffer object */
2967 if (fb
== ctx
->DrawBuffer
) {
2969 assert(fb
->RefCount
>= 2);
2970 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER
, 0);
2972 if (fb
== ctx
->ReadBuffer
) {
2974 assert(fb
->RefCount
>= 2);
2975 _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER
, 0);
2978 /* remove from hash table immediately, to free the ID */
2979 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
2981 if (fb
!= &DummyFramebuffer
) {
2982 /* But the object will not be freed until it's no longer
2983 * bound in any context.
2985 _mesa_reference_framebuffer(&fb
, NULL
);
2994 * This is the implementation for glGenFramebuffers and glCreateFramebuffers.
2995 * It is not exposed to the rest of Mesa to encourage the use of
2996 * nameless buffers in driver internals.
2999 create_framebuffers(GLsizei n
, GLuint
*framebuffers
, bool dsa
)
3001 GET_CURRENT_CONTEXT(ctx
);
3004 struct gl_framebuffer
*fb
;
3006 const char *func
= dsa
? "glCreateFramebuffers" : "glGenFramebuffers";
3009 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(n < 0)", func
);
3016 _mesa_HashLockMutex(ctx
->Shared
->FrameBuffers
);
3018 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
3020 for (i
= 0; i
< n
; i
++) {
3021 GLuint name
= first
+ i
;
3022 framebuffers
[i
] = name
;
3025 fb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffers
[i
]);
3027 _mesa_HashUnlockMutex(ctx
->Shared
->FrameBuffers
);
3028 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "%s", func
);
3033 fb
= &DummyFramebuffer
;
3035 _mesa_HashInsertLocked(ctx
->Shared
->FrameBuffers
, name
, fb
);
3038 _mesa_HashUnlockMutex(ctx
->Shared
->FrameBuffers
);
3043 _mesa_GenFramebuffers(GLsizei n
, GLuint
*framebuffers
)
3045 create_framebuffers(n
, framebuffers
, false);
3050 _mesa_CreateFramebuffers(GLsizei n
, GLuint
*framebuffers
)
3052 create_framebuffers(n
, framebuffers
, true);
3057 _mesa_check_framebuffer_status(struct gl_context
*ctx
,
3058 struct gl_framebuffer
*buffer
)
3060 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
3062 if (_mesa_is_winsys_fbo(buffer
)) {
3063 /* EGL_KHR_surfaceless_context allows the winsys FBO to be incomplete. */
3064 if (buffer
!= &IncompleteFramebuffer
) {
3065 return GL_FRAMEBUFFER_COMPLETE_EXT
;
3067 return GL_FRAMEBUFFER_UNDEFINED
;
3071 /* No need to flush here */
3073 if (buffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE
) {
3074 _mesa_test_framebuffer_completeness(ctx
, buffer
);
3077 return buffer
->_Status
;
3082 _mesa_CheckFramebufferStatus_no_error(GLenum target
)
3084 GET_CURRENT_CONTEXT(ctx
);
3086 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
3087 return _mesa_check_framebuffer_status(ctx
, fb
);
3092 _mesa_CheckFramebufferStatus(GLenum target
)
3094 struct gl_framebuffer
*fb
;
3095 GET_CURRENT_CONTEXT(ctx
);
3097 if (MESA_VERBOSE
& VERBOSE_API
)
3098 _mesa_debug(ctx
, "glCheckFramebufferStatus(%s)\n",
3099 _mesa_enum_to_string(target
));
3101 fb
= get_framebuffer_target(ctx
, target
);
3103 _mesa_error(ctx
, GL_INVALID_ENUM
,
3104 "glCheckFramebufferStatus(invalid target %s)",
3105 _mesa_enum_to_string(target
));
3109 return _mesa_check_framebuffer_status(ctx
, fb
);
3114 _mesa_CheckNamedFramebufferStatus(GLuint framebuffer
, GLenum target
)
3116 struct gl_framebuffer
*fb
;
3117 GET_CURRENT_CONTEXT(ctx
);
3119 /* Validate the target (for conformance's sake) and grab a reference to the
3120 * default framebuffer in case framebuffer = 0.
3121 * Section 9.4 Framebuffer Completeness of the OpenGL 4.5 core spec
3122 * (30.10.2014, PDF page 336) says:
3123 * "If framebuffer is zero, then the status of the default read or
3124 * draw framebuffer (as determined by target) is returned."
3127 case GL_DRAW_FRAMEBUFFER
:
3128 case GL_FRAMEBUFFER
:
3129 fb
= ctx
->WinSysDrawBuffer
;
3131 case GL_READ_FRAMEBUFFER
:
3132 fb
= ctx
->WinSysReadBuffer
;
3135 _mesa_error(ctx
, GL_INVALID_ENUM
,
3136 "glCheckNamedFramebufferStatus(invalid target %s)",
3137 _mesa_enum_to_string(target
));
3142 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
3143 "glCheckNamedFramebufferStatus");
3148 return _mesa_check_framebuffer_status(ctx
, fb
);
3153 * Replicate the src attachment point. Used by framebuffer_texture() when
3154 * the same texture is attached at GL_DEPTH_ATTACHMENT and
3155 * GL_STENCIL_ATTACHMENT.
3158 reuse_framebuffer_texture_attachment(struct gl_framebuffer
*fb
,
3159 gl_buffer_index dst
,
3160 gl_buffer_index src
)
3162 struct gl_renderbuffer_attachment
*dst_att
= &fb
->Attachment
[dst
];
3163 struct gl_renderbuffer_attachment
*src_att
= &fb
->Attachment
[src
];
3165 assert(src_att
->Texture
!= NULL
);
3166 assert(src_att
->Renderbuffer
!= NULL
);
3168 _mesa_reference_texobj(&dst_att
->Texture
, src_att
->Texture
);
3169 _mesa_reference_renderbuffer(&dst_att
->Renderbuffer
, src_att
->Renderbuffer
);
3170 dst_att
->Type
= src_att
->Type
;
3171 dst_att
->Complete
= src_att
->Complete
;
3172 dst_att
->TextureLevel
= src_att
->TextureLevel
;
3173 dst_att
->CubeMapFace
= src_att
->CubeMapFace
;
3174 dst_att
->Zoffset
= src_att
->Zoffset
;
3175 dst_att
->Layered
= src_att
->Layered
;
3179 static struct gl_texture_object
*
3180 get_texture_for_framebuffer(struct gl_context
*ctx
, GLuint texture
)
3185 return _mesa_lookup_texture(ctx
, texture
);
3190 * Common code called by gl*FramebufferTexture*() to retrieve the correct
3191 * texture object pointer.
3193 * \param texObj where the pointer to the texture object is returned. Note
3194 * that a successful call may return texObj = NULL.
3196 * \return true if no errors, false if errors
3199 get_texture_for_framebuffer_err(struct gl_context
*ctx
, GLuint texture
,
3200 bool layered
, const char *caller
,
3201 struct gl_texture_object
**texObj
)
3203 *texObj
= NULL
; /* This will get returned if texture = 0. */
3208 *texObj
= _mesa_lookup_texture(ctx
, texture
);
3209 if (*texObj
== NULL
|| (*texObj
)->Target
== 0) {
3210 /* Can't render to a non-existent texture object.
3212 * The OpenGL 4.5 core spec (02.02.2015) in Section 9.2 Binding and
3213 * Managing Framebuffer Objects specifies a different error
3214 * depending upon the calling function (PDF pages 325-328).
3215 * *FramebufferTexture (where layered = GL_TRUE) throws invalid
3216 * value, while the other commands throw invalid operation (where
3217 * layered = GL_FALSE).
3219 const GLenum error
= layered
? GL_INVALID_VALUE
:
3220 GL_INVALID_OPERATION
;
3221 _mesa_error(ctx
, error
,
3222 "%s(non-existent texture %u)", caller
, texture
);
3231 * Common code called by gl*FramebufferTexture() to verify the texture target
3232 * and decide whether or not the attachment should truly be considered
3235 * \param layered true if attachment should be considered layered, false if
3238 * \return true if no errors, false if errors
3241 check_layered_texture_target(struct gl_context
*ctx
, GLenum target
,
3242 const char *caller
, GLboolean
*layered
)
3248 case GL_TEXTURE_1D_ARRAY_EXT
:
3249 case GL_TEXTURE_2D_ARRAY_EXT
:
3250 case GL_TEXTURE_CUBE_MAP
:
3251 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3252 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3256 case GL_TEXTURE_RECTANGLE
:
3257 case GL_TEXTURE_2D_MULTISAMPLE
:
3258 /* These texture types are valid to pass to
3259 * glFramebufferTexture(), but since they aren't layered, it
3260 * is equivalent to calling glFramebufferTexture{1D,2D}().
3262 *layered
= GL_FALSE
;
3266 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3267 "%s(invalid texture target %s)", caller
,
3268 _mesa_enum_to_string(target
));
3274 * Common code called by gl*FramebufferTextureLayer() to verify the texture
3277 * \return true if no errors, false if errors
3280 check_texture_target(struct gl_context
*ctx
, GLenum target
,
3283 /* We're being called by glFramebufferTextureLayer().
3284 * The only legal texture types for that function are 3D,
3285 * cube-map, and 1D/2D/cube-map array textures.
3287 * We don't need to check for GL_ARB_texture_cube_map_array because the
3288 * application wouldn't have been able to create a texture with a
3289 * GL_TEXTURE_CUBE_MAP_ARRAY target if the extension were not enabled.
3293 case GL_TEXTURE_1D_ARRAY
:
3294 case GL_TEXTURE_2D_ARRAY
:
3295 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3296 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3298 case GL_TEXTURE_CUBE_MAP
:
3299 /* GL_TEXTURE_CUBE_MAP is only allowed by OpenGL 4.5 here, which
3300 * includes the DSA API.
3302 * Because DSA is only enabled for GL 3.1+ and this can be called
3303 * from _mesa_FramebufferTextureLayer in compatibility profile,
3304 * we need to check the version.
3306 return _mesa_is_desktop_gl(ctx
) && ctx
->Version
>= 31;
3309 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3310 "%s(invalid texture target %s)", caller
,
3311 _mesa_enum_to_string(target
));
3317 * Common code called by glFramebufferTexture*D() to verify the texture
3320 * \return true if no errors, false if errors
3323 check_textarget(struct gl_context
*ctx
, int dims
, GLenum target
,
3324 GLenum textarget
, const char *caller
)
3328 switch (textarget
) {
3332 case GL_TEXTURE_1D_ARRAY
:
3333 err
= dims
!= 1 || !ctx
->Extensions
.EXT_texture_array
;
3338 case GL_TEXTURE_2D_ARRAY
:
3339 err
= dims
!= 2 || !ctx
->Extensions
.EXT_texture_array
||
3340 (_mesa_is_gles(ctx
) && ctx
->Version
< 30);
3342 case GL_TEXTURE_2D_MULTISAMPLE
:
3343 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
3345 !ctx
->Extensions
.ARB_texture_multisample
||
3346 (_mesa_is_gles(ctx
) && ctx
->Version
< 31);
3348 case GL_TEXTURE_RECTANGLE
:
3349 err
= dims
!= 2 || _mesa_is_gles(ctx
) ||
3350 !ctx
->Extensions
.NV_texture_rectangle
;
3352 case GL_TEXTURE_CUBE_MAP
:
3353 case GL_TEXTURE_CUBE_MAP_ARRAY
:
3356 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
3357 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
3358 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
3359 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
3360 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
3361 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
3362 err
= dims
!= 2 || !ctx
->Extensions
.ARB_texture_cube_map
;
3368 _mesa_error(ctx
, GL_INVALID_ENUM
,
3369 "%s(unknown textarget 0x%x)", caller
, textarget
);
3374 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3375 "%s(invalid textarget %s)",
3376 caller
, _mesa_enum_to_string(textarget
));
3380 /* Make sure textarget is consistent with the texture's type */
3381 err
= (target
== GL_TEXTURE_CUBE_MAP
) ?
3382 !_mesa_is_cube_face(textarget
): (target
!= textarget
);
3385 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3386 "%s(mismatched texture target)", caller
);
3395 * Common code called by gl*FramebufferTextureLayer() and
3396 * glFramebufferTexture3D() to validate the layer.
3398 * \return true if no errors, false if errors
3401 check_layer(struct gl_context
*ctx
, GLenum target
, GLint layer
,
3404 /* Page 306 (page 328 of the PDF) of the OpenGL 4.5 (Core Profile)
3407 * "An INVALID_VALUE error is generated if texture is non-zero
3408 * and layer is negative."
3411 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(layer %d < 0)", caller
, layer
);
3415 if (target
== GL_TEXTURE_3D
) {
3416 const GLuint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
3417 if (layer
>= maxSize
) {
3418 _mesa_error(ctx
, GL_INVALID_VALUE
,
3419 "%s(invalid layer %u)", caller
, layer
);
3423 else if ((target
== GL_TEXTURE_1D_ARRAY
) ||
3424 (target
== GL_TEXTURE_2D_ARRAY
) ||
3425 (target
== GL_TEXTURE_CUBE_MAP_ARRAY
) ||
3426 (target
== GL_TEXTURE_2D_MULTISAMPLE_ARRAY
)) {
3427 if (layer
>= ctx
->Const
.MaxArrayTextureLayers
) {
3428 _mesa_error(ctx
, GL_INVALID_VALUE
,
3429 "%s(layer %u >= GL_MAX_ARRAY_TEXTURE_LAYERS)",
3434 else if (target
== GL_TEXTURE_CUBE_MAP
) {
3436 _mesa_error(ctx
, GL_INVALID_VALUE
,
3437 "%s(layer %u >= 6)", caller
, layer
);
3447 * Common code called by all gl*FramebufferTexture*() entry points to verify
3450 * \return true if no errors, false if errors
3453 check_level(struct gl_context
*ctx
, struct gl_texture_object
*texObj
,
3454 GLenum target
, GLint level
, const char *caller
)
3456 /* Section 9.2.8 of the OpenGL 4.6 specification says:
3458 * "If texture refers to an immutable-format texture, level must be
3459 * greater than or equal to zero and smaller than the value of
3460 * TEXTURE_VIEW_NUM_LEVELS for texture."
3462 const int max_levels
= texObj
->Immutable
? texObj
->ImmutableLevels
:
3463 _mesa_max_texture_levels(ctx
, target
);
3465 if (level
< 0 || level
>= max_levels
) {
3466 _mesa_error(ctx
, GL_INVALID_VALUE
,
3467 "%s(invalid level %d)", caller
, level
);
3475 struct gl_renderbuffer_attachment
*
3476 _mesa_get_and_validate_attachment(struct gl_context
*ctx
,
3477 struct gl_framebuffer
*fb
,
3478 GLenum attachment
, const char *caller
)
3480 /* The window-system framebuffer object is immutable */
3481 if (_mesa_is_winsys_fbo(fb
)) {
3482 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(window-system framebuffer)",
3487 /* Not a hash lookup, so we can afford to get the attachment here. */
3488 bool is_color_attachment
;
3489 struct gl_renderbuffer_attachment
*att
=
3490 get_attachment(ctx
, fb
, attachment
, &is_color_attachment
);
3492 if (is_color_attachment
) {
3493 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3494 "%s(invalid color attachment %s)", caller
,
3495 _mesa_enum_to_string(attachment
));
3497 _mesa_error(ctx
, GL_INVALID_ENUM
,
3498 "%s(invalid attachment %s)", caller
,
3499 _mesa_enum_to_string(attachment
));
3509 _mesa_framebuffer_texture(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
3511 struct gl_renderbuffer_attachment
*att
,
3512 struct gl_texture_object
*texObj
, GLenum textarget
,
3513 GLint level
, GLsizei samples
,
3514 GLuint layer
, GLboolean layered
)
3516 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3518 simple_mtx_lock(&fb
->Mutex
);
3520 if (attachment
== GL_DEPTH_ATTACHMENT
&&
3521 texObj
== fb
->Attachment
[BUFFER_STENCIL
].Texture
&&
3522 level
== fb
->Attachment
[BUFFER_STENCIL
].TextureLevel
&&
3523 _mesa_tex_target_to_face(textarget
) ==
3524 fb
->Attachment
[BUFFER_STENCIL
].CubeMapFace
&&
3525 samples
== fb
->Attachment
[BUFFER_STENCIL
].NumSamples
&&
3526 layer
== fb
->Attachment
[BUFFER_STENCIL
].Zoffset
) {
3527 /* The texture object is already attached to the stencil attachment
3528 * point. Don't create a new renderbuffer; just reuse the stencil
3529 * attachment's. This is required to prevent a GL error in
3530 * glGetFramebufferAttachmentParameteriv(GL_DEPTH_STENCIL).
3532 reuse_framebuffer_texture_attachment(fb
, BUFFER_DEPTH
,
3534 } else if (attachment
== GL_STENCIL_ATTACHMENT
&&
3535 texObj
== fb
->Attachment
[BUFFER_DEPTH
].Texture
&&
3536 level
== fb
->Attachment
[BUFFER_DEPTH
].TextureLevel
&&
3537 _mesa_tex_target_to_face(textarget
) ==
3538 fb
->Attachment
[BUFFER_DEPTH
].CubeMapFace
&&
3539 samples
== fb
->Attachment
[BUFFER_DEPTH
].NumSamples
&&
3540 layer
== fb
->Attachment
[BUFFER_DEPTH
].Zoffset
) {
3541 /* As above, but with depth and stencil transposed. */
3542 reuse_framebuffer_texture_attachment(fb
, BUFFER_STENCIL
,
3545 set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
3546 level
, samples
, layer
, layered
);
3548 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3549 /* Above we created a new renderbuffer and attached it to the
3550 * depth attachment point. Now attach it to the stencil attachment
3553 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3554 reuse_framebuffer_texture_attachment(fb
,BUFFER_STENCIL
,
3559 /* Set the render-to-texture flag. We'll check this flag in
3560 * glTexImage() and friends to determine if we need to revalidate
3561 * any FBOs that might be rendering into this texture.
3562 * This flag never gets cleared since it's non-trivial to determine
3563 * when all FBOs might be done rendering to this texture. That's OK
3564 * though since it's uncommon to render to a texture then repeatedly
3565 * call glTexImage() to change images in the texture.
3567 texObj
->_RenderToTexture
= GL_TRUE
;
3570 remove_attachment(ctx
, att
);
3571 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
3572 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
3573 remove_attachment(ctx
, &fb
->Attachment
[BUFFER_STENCIL
]);
3577 invalidate_framebuffer(fb
);
3579 simple_mtx_unlock(&fb
->Mutex
);
3584 framebuffer_texture_with_dims_no_error(GLenum target
, GLenum attachment
,
3585 GLenum textarget
, GLuint texture
,
3586 GLint level
, GLint layer
)
3588 GET_CURRENT_CONTEXT(ctx
);
3590 /* Get the framebuffer object */
3591 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
3593 /* Get the texture object */
3594 struct gl_texture_object
*texObj
=
3595 get_texture_for_framebuffer(ctx
, texture
);
3597 struct gl_renderbuffer_attachment
*att
=
3598 get_attachment(ctx
, fb
, attachment
, NULL
);
3600 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3601 level
, 0, layer
, GL_FALSE
);
3606 framebuffer_texture_with_dims(int dims
, GLenum target
,
3607 GLenum attachment
, GLenum textarget
,
3608 GLuint texture
, GLint level
, GLsizei samples
,
3609 GLint layer
, const char *caller
)
3611 GET_CURRENT_CONTEXT(ctx
);
3612 struct gl_framebuffer
*fb
;
3613 struct gl_texture_object
*texObj
;
3615 /* Get the framebuffer object */
3616 fb
= get_framebuffer_target(ctx
, target
);
3618 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)", caller
,
3619 _mesa_enum_to_string(target
));
3623 /* Get the texture object */
3624 if (!get_texture_for_framebuffer_err(ctx
, texture
, false, caller
, &texObj
))
3628 if (!check_textarget(ctx
, dims
, texObj
->Target
, textarget
, caller
))
3631 if ((dims
== 3) && !check_layer(ctx
, texObj
->Target
, layer
, caller
))
3634 if (!check_level(ctx
, texObj
, textarget
, level
, caller
))
3638 struct gl_renderbuffer_attachment
*att
=
3639 _mesa_get_and_validate_attachment(ctx
, fb
, attachment
, caller
);
3643 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3644 level
, samples
, layer
, GL_FALSE
);
3649 _mesa_FramebufferTexture1D_no_error(GLenum target
, GLenum attachment
,
3650 GLenum textarget
, GLuint texture
,
3653 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3659 _mesa_FramebufferTexture1D(GLenum target
, GLenum attachment
,
3660 GLenum textarget
, GLuint texture
, GLint level
)
3662 framebuffer_texture_with_dims(1, target
, attachment
, textarget
, texture
,
3663 level
, 0, 0, "glFramebufferTexture1D");
3668 _mesa_FramebufferTexture2D_no_error(GLenum target
, GLenum attachment
,
3669 GLenum textarget
, GLuint texture
,
3672 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3678 _mesa_FramebufferTexture2D(GLenum target
, GLenum attachment
,
3679 GLenum textarget
, GLuint texture
, GLint level
)
3681 framebuffer_texture_with_dims(2, target
, attachment
, textarget
, texture
,
3682 level
, 0, 0, "glFramebufferTexture2D");
3687 _mesa_FramebufferTexture2DMultisampleEXT(GLenum target
, GLenum attachment
,
3688 GLenum textarget
, GLuint texture
,
3689 GLint level
, GLsizei samples
)
3691 framebuffer_texture_with_dims(2, target
, attachment
, textarget
, texture
,
3692 level
, samples
, 0, "glFramebufferTexture2DMultisampleEXT");
3697 _mesa_FramebufferTexture3D_no_error(GLenum target
, GLenum attachment
,
3698 GLenum textarget
, GLuint texture
,
3699 GLint level
, GLint layer
)
3701 framebuffer_texture_with_dims_no_error(target
, attachment
, textarget
,
3702 texture
, level
, layer
);
3707 _mesa_FramebufferTexture3D(GLenum target
, GLenum attachment
,
3708 GLenum textarget
, GLuint texture
,
3709 GLint level
, GLint layer
)
3711 framebuffer_texture_with_dims(3, target
, attachment
, textarget
, texture
,
3712 level
, 0, layer
, "glFramebufferTexture3D");
3716 static ALWAYS_INLINE
void
3717 frame_buffer_texture(GLuint framebuffer
, GLenum target
,
3718 GLenum attachment
, GLuint texture
,
3719 GLint level
, GLint layer
, const char *func
,
3720 bool dsa
, bool no_error
, bool check_layered
)
3722 GET_CURRENT_CONTEXT(ctx
);
3723 GLboolean layered
= GL_FALSE
;
3725 if (!no_error
&& check_layered
) {
3726 if (!_mesa_has_geometry_shaders(ctx
)) {
3727 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3728 "unsupported function (%s) called", func
);
3733 /* Get the framebuffer object */
3734 struct gl_framebuffer
*fb
;
3737 fb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
3739 fb
= get_framebuffer_target(ctx
, target
);
3743 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
, func
);
3747 fb
= get_framebuffer_target(ctx
, target
);
3749 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid target %s)",
3750 func
, _mesa_enum_to_string(target
));
3756 /* Get the texture object and framebuffer attachment*/
3757 struct gl_renderbuffer_attachment
*att
;
3758 struct gl_texture_object
*texObj
;
3760 texObj
= get_texture_for_framebuffer(ctx
, texture
);
3761 att
= get_attachment(ctx
, fb
, attachment
, NULL
);
3763 if (!get_texture_for_framebuffer_err(ctx
, texture
, check_layered
, func
,
3767 att
= _mesa_get_and_validate_attachment(ctx
, fb
, attachment
, func
);
3772 GLenum textarget
= 0;
3774 if (check_layered
) {
3775 /* We do this regardless of no_error because this sets layered */
3776 if (!check_layered_texture_target(ctx
, texObj
->Target
, func
,
3782 if (!check_layered
) {
3783 if (!check_texture_target(ctx
, texObj
->Target
, func
))
3786 if (!check_layer(ctx
, texObj
->Target
, layer
, func
))
3790 if (!check_level(ctx
, texObj
, texObj
->Target
, level
, func
))
3794 if (!check_layered
&& texObj
->Target
== GL_TEXTURE_CUBE_MAP
) {
3795 assert(layer
>= 0 && layer
< 6);
3796 textarget
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ layer
;
3801 _mesa_framebuffer_texture(ctx
, fb
, attachment
, att
, texObj
, textarget
,
3802 level
, 0, layer
, layered
);
3806 _mesa_FramebufferTextureLayer_no_error(GLenum target
, GLenum attachment
,
3807 GLuint texture
, GLint level
,
3810 frame_buffer_texture(0, target
, attachment
, texture
, level
, layer
,
3811 "glFramebufferTextureLayer", false, true, false);
3816 _mesa_FramebufferTextureLayer(GLenum target
, GLenum attachment
,
3817 GLuint texture
, GLint level
, GLint layer
)
3819 frame_buffer_texture(0, target
, attachment
, texture
, level
, layer
,
3820 "glFramebufferTextureLayer", false, false, false);
3825 _mesa_NamedFramebufferTextureLayer_no_error(GLuint framebuffer
,
3827 GLuint texture
, GLint level
,
3830 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, layer
,
3831 "glNamedFramebufferTextureLayer", true, true, false);
3836 _mesa_NamedFramebufferTextureLayer(GLuint framebuffer
, GLenum attachment
,
3837 GLuint texture
, GLint level
, GLint layer
)
3839 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, layer
,
3840 "glNamedFramebufferTextureLayer", true, false, false);
3845 _mesa_FramebufferTexture_no_error(GLenum target
, GLenum attachment
,
3846 GLuint texture
, GLint level
)
3848 frame_buffer_texture(0, target
, attachment
, texture
, level
, 0,
3849 "glFramebufferTexture", false, true, true);
3854 _mesa_FramebufferTexture(GLenum target
, GLenum attachment
,
3855 GLuint texture
, GLint level
)
3857 frame_buffer_texture(0, target
, attachment
, texture
, level
, 0,
3858 "glFramebufferTexture", false, false, true);
3862 _mesa_NamedFramebufferTexture_no_error(GLuint framebuffer
, GLenum attachment
,
3863 GLuint texture
, GLint level
)
3865 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, 0,
3866 "glNamedFramebufferTexture", true, true, true);
3871 _mesa_NamedFramebufferTexture(GLuint framebuffer
, GLenum attachment
,
3872 GLuint texture
, GLint level
)
3874 frame_buffer_texture(framebuffer
, 0, attachment
, texture
, level
, 0,
3875 "glNamedFramebufferTexture", true, false, true);
3880 _mesa_framebuffer_renderbuffer(struct gl_context
*ctx
,
3881 struct gl_framebuffer
*fb
,
3883 struct gl_renderbuffer
*rb
)
3885 assert(!_mesa_is_winsys_fbo(fb
));
3887 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
3889 assert(ctx
->Driver
.FramebufferRenderbuffer
);
3890 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
3892 /* Some subsequent GL commands may depend on the framebuffer's visual
3893 * after the binding is updated. Update visual info now.
3895 _mesa_update_framebuffer_visual(ctx
, fb
);
3898 static ALWAYS_INLINE
void
3899 framebuffer_renderbuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
3900 GLenum attachment
, GLenum renderbuffertarget
,
3901 GLuint renderbuffer
, const char *func
, bool no_error
)
3903 struct gl_renderbuffer_attachment
*att
;
3904 struct gl_renderbuffer
*rb
;
3905 bool is_color_attachment
;
3907 if (!no_error
&& renderbuffertarget
!= GL_RENDERBUFFER
) {
3908 _mesa_error(ctx
, GL_INVALID_ENUM
,
3909 "%s(renderbuffertarget is not GL_RENDERBUFFER)", func
);
3915 rb
= _mesa_lookup_renderbuffer_err(ctx
, renderbuffer
, func
);
3919 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
3922 /* remove renderbuffer attachment */
3927 if (_mesa_is_winsys_fbo(fb
)) {
3928 /* Can't attach new renderbuffers to a window system framebuffer */
3929 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3930 "%s(window-system framebuffer)", func
);
3934 att
= get_attachment(ctx
, fb
, attachment
, &is_color_attachment
);
3937 * From OpenGL 4.5 spec, section 9.2.7 "Attaching Renderbuffer Images
3938 * to a Framebuffer":
3940 * "An INVALID_OPERATION error is generated if attachment is
3941 * COLOR_- ATTACHMENTm where m is greater than or equal to the
3942 * value of MAX_COLOR_- ATTACHMENTS ."
3944 * If we are at this point, is because the attachment is not valid, so
3945 * if is_color_attachment is true, is because of the previous reason.
3947 if (is_color_attachment
) {
3948 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3949 "%s(invalid color attachment %s)", func
,
3950 _mesa_enum_to_string(attachment
));
3952 _mesa_error(ctx
, GL_INVALID_ENUM
,
3953 "%s(invalid attachment %s)", func
,
3954 _mesa_enum_to_string(attachment
));
3960 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
&&
3961 rb
&& rb
->Format
!= MESA_FORMAT_NONE
) {
3962 /* make sure the renderbuffer is a depth/stencil format */
3963 const GLenum baseFormat
= _mesa_get_format_base_format(rb
->Format
);
3964 if (baseFormat
!= GL_DEPTH_STENCIL
) {
3965 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3966 "%s(renderbuffer is not DEPTH_STENCIL format)", func
);
3972 _mesa_framebuffer_renderbuffer(ctx
, fb
, attachment
, rb
);
3976 framebuffer_renderbuffer_error(struct gl_context
*ctx
,
3977 struct gl_framebuffer
*fb
, GLenum attachment
,
3978 GLenum renderbuffertarget
,
3979 GLuint renderbuffer
, const char *func
)
3981 framebuffer_renderbuffer(ctx
, fb
, attachment
, renderbuffertarget
,
3982 renderbuffer
, func
, false);
3986 framebuffer_renderbuffer_no_error(struct gl_context
*ctx
,
3987 struct gl_framebuffer
*fb
, GLenum attachment
,
3988 GLenum renderbuffertarget
,
3989 GLuint renderbuffer
, const char *func
)
3991 framebuffer_renderbuffer(ctx
, fb
, attachment
, renderbuffertarget
,
3992 renderbuffer
, func
, true);
3996 _mesa_FramebufferRenderbuffer_no_error(GLenum target
, GLenum attachment
,
3997 GLenum renderbuffertarget
,
3998 GLuint renderbuffer
)
4000 GET_CURRENT_CONTEXT(ctx
);
4002 struct gl_framebuffer
*fb
= get_framebuffer_target(ctx
, target
);
4003 framebuffer_renderbuffer_no_error(ctx
, fb
, attachment
, renderbuffertarget
,
4004 renderbuffer
, "glFramebufferRenderbuffer");
4008 _mesa_FramebufferRenderbuffer(GLenum target
, GLenum attachment
,
4009 GLenum renderbuffertarget
,
4010 GLuint renderbuffer
)
4012 struct gl_framebuffer
*fb
;
4013 GET_CURRENT_CONTEXT(ctx
);
4015 fb
= get_framebuffer_target(ctx
, target
);
4017 _mesa_error(ctx
, GL_INVALID_ENUM
,
4018 "glFramebufferRenderbuffer(invalid target %s)",
4019 _mesa_enum_to_string(target
));
4023 framebuffer_renderbuffer_error(ctx
, fb
, attachment
, renderbuffertarget
,
4024 renderbuffer
, "glFramebufferRenderbuffer");
4028 _mesa_NamedFramebufferRenderbuffer_no_error(GLuint framebuffer
,
4030 GLenum renderbuffertarget
,
4031 GLuint renderbuffer
)
4033 GET_CURRENT_CONTEXT(ctx
);
4035 struct gl_framebuffer
*fb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
4036 framebuffer_renderbuffer_no_error(ctx
, fb
, attachment
, renderbuffertarget
,
4038 "glNamedFramebufferRenderbuffer");
4042 _mesa_NamedFramebufferRenderbuffer(GLuint framebuffer
, GLenum attachment
,
4043 GLenum renderbuffertarget
,
4044 GLuint renderbuffer
)
4046 struct gl_framebuffer
*fb
;
4047 GET_CURRENT_CONTEXT(ctx
);
4049 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4050 "glNamedFramebufferRenderbuffer");
4054 framebuffer_renderbuffer_error(ctx
, fb
, attachment
, renderbuffertarget
,
4056 "glNamedFramebufferRenderbuffer");
4061 get_framebuffer_attachment_parameter(struct gl_context
*ctx
,
4062 struct gl_framebuffer
*buffer
,
4063 GLenum attachment
, GLenum pname
,
4064 GLint
*params
, const char *caller
)
4066 const struct gl_renderbuffer_attachment
*att
;
4067 bool is_color_attachment
= false;
4070 /* The error code for an attachment type of GL_NONE differs between APIs.
4072 * From the ES 2.0.25 specification, page 127:
4073 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
4074 * querying any other pname will generate INVALID_ENUM."
4076 * From the OpenGL 3.0 specification, page 337, or identically,
4077 * the OpenGL ES 3.0.4 specification, page 240:
4079 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, no
4080 * framebuffer is bound to target. In this case querying pname
4081 * FRAMEBUFFER_ATTACHMENT_OBJECT_NAME will return zero, and all other
4082 * queries will generate an INVALID_OPERATION error."
4084 err
= ctx
->API
== API_OPENGLES2
&& ctx
->Version
< 30 ?
4085 GL_INVALID_ENUM
: GL_INVALID_OPERATION
;
4087 if (_mesa_is_winsys_fbo(buffer
)) {
4088 /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
4091 * "If the framebuffer currently bound to target is zero, then
4092 * INVALID_OPERATION is generated."
4094 * The EXT_framebuffer_object spec has the same wording, and the
4095 * OES_framebuffer_object spec refers to the EXT_framebuffer_object
4098 if ((!_mesa_is_desktop_gl(ctx
) ||
4099 !ctx
->Extensions
.ARB_framebuffer_object
)
4100 && !_mesa_is_gles3(ctx
)) {
4101 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4102 "%s(window-system framebuffer)", caller
);
4106 if (_mesa_is_gles3(ctx
) && attachment
!= GL_BACK
&&
4107 attachment
!= GL_DEPTH
&& attachment
!= GL_STENCIL
) {
4108 _mesa_error(ctx
, GL_INVALID_ENUM
,
4109 "%s(invalid attachment %s)", caller
,
4110 _mesa_enum_to_string(attachment
));
4114 /* The specs are not clear about how to handle
4115 * GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME with the default framebuffer,
4116 * but dEQP-GLES3 expects an INVALID_ENUM error. This has also been
4119 * https://cvs.khronos.org/bugzilla/show_bug.cgi?id=12928#c1
4120 * and https://bugs.freedesktop.org/show_bug.cgi?id=31947
4122 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME
) {
4123 _mesa_error(ctx
, GL_INVALID_ENUM
,
4124 "%s(requesting GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME "
4125 "when GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is "
4126 "GL_FRAMEBUFFER_DEFAULT is not allowed)", caller
);
4130 /* the default / window-system FBO */
4131 att
= get_fb0_attachment(ctx
, buffer
, attachment
);
4134 /* user-created framebuffer FBO */
4135 att
= get_attachment(ctx
, buffer
, attachment
, &is_color_attachment
);
4140 * From OpenGL 4.5 spec, section 9.2.3 "Framebuffer Object Queries":
4142 * "An INVALID_OPERATION error is generated if a framebuffer object
4143 * is bound to target and attachment is COLOR_ATTACHMENTm where m is
4144 * greater than or equal to the value of MAX_COLOR_ATTACHMENTS."
4146 * If we are at this point, is because the attachment is not valid, so
4147 * if is_color_attachment is true, is because of the previous reason.
4149 if (is_color_attachment
) {
4150 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s(invalid color attachment %s)",
4151 caller
, _mesa_enum_to_string(attachment
));
4153 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", caller
,
4154 _mesa_enum_to_string(attachment
));
4159 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
4160 const struct gl_renderbuffer_attachment
*depthAtt
, *stencilAtt
;
4161 if (pname
== GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
) {
4162 /* This behavior is first specified in OpenGL 4.4 specification.
4164 * From the OpenGL 4.4 spec page 275:
4165 * "This query cannot be performed for a combined depth+stencil
4166 * attachment, since it does not have a single format."
4168 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4169 "%s(GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE"
4170 " is invalid for depth+stencil attachment)", caller
);
4173 /* the depth and stencil attachments must point to the same buffer */
4174 depthAtt
= get_attachment(ctx
, buffer
, GL_DEPTH_ATTACHMENT
, NULL
);
4175 stencilAtt
= get_attachment(ctx
, buffer
, GL_STENCIL_ATTACHMENT
, NULL
);
4176 if (depthAtt
->Renderbuffer
!= stencilAtt
->Renderbuffer
) {
4177 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4178 "%s(DEPTH/STENCIL attachments differ)", caller
);
4183 /* No need to flush here */
4186 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
4187 /* From the OpenGL spec, 9.2. Binding and Managing Framebuffer Objects:
4189 * "If the value of FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE is NONE, then
4190 * either no framebuffer is bound to target; or the default framebuffer
4191 * is bound, attachment is DEPTH or STENCIL, and the number of depth or
4192 * stencil bits, respectively, is zero."
4194 * Note that we don't need explicit checks on DEPTH and STENCIL, because
4195 * on the case the spec is pointing, att->Type is already NONE, so we
4196 * just need to check att->Type.
4198 *params
= (_mesa_is_winsys_fbo(buffer
) && att
->Type
!= GL_NONE
) ?
4199 GL_FRAMEBUFFER_DEFAULT
: att
->Type
;
4201 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
4202 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
4203 *params
= att
->Renderbuffer
->Name
;
4205 else if (att
->Type
== GL_TEXTURE
) {
4206 *params
= att
->Texture
->Name
;
4209 assert(att
->Type
== GL_NONE
);
4210 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
4213 goto invalid_pname_enum
;
4217 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
4218 if (att
->Type
== GL_TEXTURE
) {
4219 *params
= att
->TextureLevel
;
4221 else if (att
->Type
== GL_NONE
) {
4222 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4223 _mesa_enum_to_string(pname
));
4226 goto invalid_pname_enum
;
4229 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
4230 if (att
->Type
== GL_TEXTURE
) {
4231 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
4232 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
4238 else if (att
->Type
== GL_NONE
) {
4239 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4240 _mesa_enum_to_string(pname
));
4243 goto invalid_pname_enum
;
4246 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
4247 if (ctx
->API
== API_OPENGLES
) {
4248 goto invalid_pname_enum
;
4249 } else if (att
->Type
== GL_NONE
) {
4250 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4251 _mesa_enum_to_string(pname
));
4252 } else if (att
->Type
== GL_TEXTURE
) {
4253 if (att
->Texture
&& (att
->Texture
->Target
== GL_TEXTURE_3D
||
4254 att
->Texture
->Target
== GL_TEXTURE_2D_ARRAY
)) {
4255 *params
= att
->Zoffset
;
4262 goto invalid_pname_enum
;
4265 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
:
4266 if ((!_mesa_is_desktop_gl(ctx
) ||
4267 !ctx
->Extensions
.ARB_framebuffer_object
)
4268 && !_mesa_is_gles3(ctx
)) {
4269 goto invalid_pname_enum
;
4271 else if (att
->Type
== GL_NONE
) {
4272 if (_mesa_is_winsys_fbo(buffer
) &&
4273 (attachment
== GL_DEPTH
|| attachment
== GL_STENCIL
)) {
4274 *params
= GL_LINEAR
;
4276 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4277 _mesa_enum_to_string(pname
));
4281 if (ctx
->Extensions
.EXT_sRGB
) {
4283 _mesa_get_format_color_encoding(att
->Renderbuffer
->Format
);
4286 /* According to ARB_framebuffer_sRGB, we should return LINEAR
4287 * if the sRGB conversion is unsupported. */
4288 *params
= GL_LINEAR
;
4292 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
:
4293 if ((ctx
->API
!= API_OPENGL_COMPAT
||
4294 !ctx
->Extensions
.ARB_framebuffer_object
)
4295 && ctx
->API
!= API_OPENGL_CORE
4296 && !_mesa_is_gles3(ctx
)) {
4297 goto invalid_pname_enum
;
4299 else if (att
->Type
== GL_NONE
) {
4300 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4301 _mesa_enum_to_string(pname
));
4304 mesa_format format
= att
->Renderbuffer
->Format
;
4306 /* Page 235 (page 247 of the PDF) in section 6.1.13 of the OpenGL ES
4309 * "If pname is FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE.... If
4310 * attachment is DEPTH_STENCIL_ATTACHMENT the query will fail and
4311 * generate an INVALID_OPERATION error.
4313 if (_mesa_is_gles3(ctx
) &&
4314 attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
4315 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4317 "GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE of "
4318 "GL_DEPTH_STENCIL_ATTACHMENT)", caller
);
4322 if (format
== MESA_FORMAT_S_UINT8
) {
4326 else if (format
== MESA_FORMAT_Z32_FLOAT_S8X24_UINT
) {
4327 /* depends on the attachment parameter */
4328 if (attachment
== GL_STENCIL_ATTACHMENT
) {
4336 *params
= _mesa_get_format_datatype(format
);
4340 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
4341 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
4342 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
4343 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
4344 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
4345 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
4346 if ((!_mesa_is_desktop_gl(ctx
) ||
4347 !ctx
->Extensions
.ARB_framebuffer_object
)
4348 && !_mesa_is_gles3(ctx
)) {
4349 goto invalid_pname_enum
;
4351 else if (att
->Texture
) {
4352 const struct gl_texture_image
*texImage
=
4353 _mesa_select_tex_image(att
->Texture
, att
->Texture
->Target
,
4356 *params
= get_component_bits(pname
, texImage
->_BaseFormat
,
4357 texImage
->TexFormat
);
4363 else if (att
->Renderbuffer
) {
4364 *params
= get_component_bits(pname
, att
->Renderbuffer
->_BaseFormat
,
4365 att
->Renderbuffer
->Format
);
4368 assert(att
->Type
== GL_NONE
);
4369 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4370 _mesa_enum_to_string(pname
));
4373 case GL_FRAMEBUFFER_ATTACHMENT_LAYERED
:
4374 if (!_mesa_has_geometry_shaders(ctx
)) {
4375 goto invalid_pname_enum
;
4376 } else if (att
->Type
== GL_TEXTURE
) {
4377 *params
= att
->Layered
;
4378 } else if (att
->Type
== GL_NONE
) {
4379 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4380 _mesa_enum_to_string(pname
));
4382 goto invalid_pname_enum
;
4385 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_SAMPLES_EXT
:
4386 if (!ctx
->Extensions
.EXT_multisampled_render_to_texture
) {
4387 goto invalid_pname_enum
;
4388 } else if (att
->Type
== GL_TEXTURE
) {
4389 *params
= att
->NumSamples
;
4390 } else if (att
->Type
== GL_NONE
) {
4391 _mesa_error(ctx
, err
, "%s(invalid pname %s)", caller
,
4392 _mesa_enum_to_string(pname
));
4394 goto invalid_pname_enum
;
4398 goto invalid_pname_enum
;
4404 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid pname %s)", caller
,
4405 _mesa_enum_to_string(pname
));
4411 _mesa_GetFramebufferAttachmentParameteriv(GLenum target
, GLenum attachment
,
4412 GLenum pname
, GLint
*params
)
4414 GET_CURRENT_CONTEXT(ctx
);
4415 struct gl_framebuffer
*buffer
;
4417 buffer
= get_framebuffer_target(ctx
, target
);
4419 _mesa_error(ctx
, GL_INVALID_ENUM
,
4420 "glGetFramebufferAttachmentParameteriv(invalid target %s)",
4421 _mesa_enum_to_string(target
));
4425 get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
4427 "glGetFramebufferAttachmentParameteriv");
4432 _mesa_GetNamedFramebufferAttachmentParameteriv(GLuint framebuffer
,
4434 GLenum pname
, GLint
*params
)
4436 GET_CURRENT_CONTEXT(ctx
);
4437 struct gl_framebuffer
*buffer
;
4440 buffer
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4441 "glGetNamedFramebufferAttachmentParameteriv");
4447 * Section 9.2 Binding and Managing Framebuffer Objects of the OpenGL
4448 * 4.5 core spec (30.10.2014, PDF page 314):
4449 * "If framebuffer is zero, then the default draw framebuffer is
4452 buffer
= ctx
->WinSysDrawBuffer
;
4455 get_framebuffer_attachment_parameter(ctx
, buffer
, attachment
, pname
,
4457 "glGetNamedFramebufferAttachmentParameteriv");
4462 _mesa_NamedFramebufferParameteri(GLuint framebuffer
, GLenum pname
,
4465 GET_CURRENT_CONTEXT(ctx
);
4466 struct gl_framebuffer
*fb
= NULL
;
4468 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
&&
4469 !ctx
->Extensions
.ARB_sample_locations
) {
4470 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4471 "glNamedFramebufferParameteri("
4472 "neither ARB_framebuffer_no_attachments nor "
4473 "ARB_sample_locations is available)");
4478 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4479 "glNamedFramebufferParameteri");
4481 fb
= ctx
->WinSysDrawBuffer
;
4485 framebuffer_parameteri(ctx
, fb
, pname
, param
,
4486 "glNamedFramebufferParameteriv");
4492 _mesa_GetNamedFramebufferParameteriv(GLuint framebuffer
, GLenum pname
,
4495 GET_CURRENT_CONTEXT(ctx
);
4496 struct gl_framebuffer
*fb
;
4498 if (!ctx
->Extensions
.ARB_framebuffer_no_attachments
) {
4499 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4500 "glNamedFramebufferParameteriv("
4501 "neither ARB_framebuffer_no_attachments nor ARB_sample_locations"
4507 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4508 "glGetNamedFramebufferParameteriv");
4510 fb
= ctx
->WinSysDrawBuffer
;
4513 get_framebuffer_parameteriv(ctx
, fb
, pname
, param
,
4514 "glGetNamedFramebufferParameteriv");
4520 invalidate_framebuffer_storage(struct gl_context
*ctx
,
4521 struct gl_framebuffer
*fb
,
4522 GLsizei numAttachments
,
4523 const GLenum
*attachments
, GLint x
, GLint y
,
4524 GLsizei width
, GLsizei height
, const char *name
)
4528 /* Section 17.4 Whole Framebuffer Operations of the OpenGL 4.5 Core
4529 * Spec (2.2.2015, PDF page 522) says:
4530 * "An INVALID_VALUE error is generated if numAttachments, width, or
4531 * height is negative."
4533 if (numAttachments
< 0) {
4534 _mesa_error(ctx
, GL_INVALID_VALUE
,
4535 "%s(numAttachments < 0)", name
);
4540 _mesa_error(ctx
, GL_INVALID_VALUE
,
4541 "%s(width < 0)", name
);
4546 _mesa_error(ctx
, GL_INVALID_VALUE
,
4547 "%s(height < 0)", name
);
4551 /* The GL_ARB_invalidate_subdata spec says:
4553 * "If an attachment is specified that does not exist in the
4554 * framebuffer bound to <target>, it is ignored."
4558 * "If <attachments> contains COLOR_ATTACHMENTm and m is greater than
4559 * or equal to the value of MAX_COLOR_ATTACHMENTS, then the error
4560 * INVALID_OPERATION is generated."
4562 * No mention is made of GL_AUXi being out of range. Therefore, we allow
4563 * any enum that can be allowed by the API (OpenGL ES 3.0 has a different
4564 * set of retrictions).
4566 for (i
= 0; i
< numAttachments
; i
++) {
4567 if (_mesa_is_winsys_fbo(fb
)) {
4568 switch (attachments
[i
]) {
4574 /* Accumulation buffers and auxilary buffers were removed in
4575 * OpenGL 3.1, and they never existed in OpenGL ES.
4577 if (ctx
->API
!= API_OPENGL_COMPAT
)
4587 case GL_FRONT_RIGHT
:
4588 if (!_mesa_is_desktop_gl(ctx
))
4595 switch (attachments
[i
]) {
4596 case GL_DEPTH_ATTACHMENT
:
4597 case GL_STENCIL_ATTACHMENT
:
4599 case GL_DEPTH_STENCIL_ATTACHMENT
:
4600 /* GL_DEPTH_STENCIL_ATTACHMENT is a valid attachment point only
4601 * in desktop and ES 3.0 profiles. Note that OES_packed_depth_stencil
4602 * extension does not make this attachment point valid on ES 2.0.
4604 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
))
4607 case GL_COLOR_ATTACHMENT0
:
4608 case GL_COLOR_ATTACHMENT1
:
4609 case GL_COLOR_ATTACHMENT2
:
4610 case GL_COLOR_ATTACHMENT3
:
4611 case GL_COLOR_ATTACHMENT4
:
4612 case GL_COLOR_ATTACHMENT5
:
4613 case GL_COLOR_ATTACHMENT6
:
4614 case GL_COLOR_ATTACHMENT7
:
4615 case GL_COLOR_ATTACHMENT8
:
4616 case GL_COLOR_ATTACHMENT9
:
4617 case GL_COLOR_ATTACHMENT10
:
4618 case GL_COLOR_ATTACHMENT11
:
4619 case GL_COLOR_ATTACHMENT12
:
4620 case GL_COLOR_ATTACHMENT13
:
4621 case GL_COLOR_ATTACHMENT14
:
4622 case GL_COLOR_ATTACHMENT15
: {
4623 unsigned k
= attachments
[i
] - GL_COLOR_ATTACHMENT0
;
4624 if (k
>= ctx
->Const
.MaxColorAttachments
) {
4625 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4626 "%s(attachment >= max. color attachments)", name
);
4637 /* We don't actually do anything for this yet. Just return after
4638 * validating the parameters and generating the required errors.
4643 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(invalid attachment %s)", name
,
4644 _mesa_enum_to_string(attachments
[i
]));
4648 static struct gl_renderbuffer_attachment
*
4649 get_fb_attachment(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
4650 const GLenum attachment
)
4652 switch (attachment
) {
4654 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
4655 case GL_COLOR_ATTACHMENT0
:
4656 case GL_COLOR_ATTACHMENT1
:
4657 case GL_COLOR_ATTACHMENT2
:
4658 case GL_COLOR_ATTACHMENT3
:
4659 case GL_COLOR_ATTACHMENT4
:
4660 case GL_COLOR_ATTACHMENT5
:
4661 case GL_COLOR_ATTACHMENT6
:
4662 case GL_COLOR_ATTACHMENT7
:
4663 case GL_COLOR_ATTACHMENT8
:
4664 case GL_COLOR_ATTACHMENT9
:
4665 case GL_COLOR_ATTACHMENT10
:
4666 case GL_COLOR_ATTACHMENT11
:
4667 case GL_COLOR_ATTACHMENT12
:
4668 case GL_COLOR_ATTACHMENT13
:
4669 case GL_COLOR_ATTACHMENT14
:
4670 case GL_COLOR_ATTACHMENT15
: {
4671 const unsigned i
= attachment
- GL_COLOR_ATTACHMENT0
;
4672 if (i
>= ctx
->Const
.MaxColorAttachments
)
4674 return &fb
->Attachment
[BUFFER_COLOR0
+ i
];
4677 case GL_DEPTH_ATTACHMENT
:
4678 case GL_DEPTH_STENCIL_ATTACHMENT
:
4679 return &fb
->Attachment
[BUFFER_DEPTH
];
4681 case GL_STENCIL_ATTACHMENT
:
4682 return &fb
->Attachment
[BUFFER_STENCIL
];
4689 discard_framebuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
4690 GLsizei numAttachments
, const GLenum
*attachments
)
4692 if (!ctx
->Driver
.DiscardFramebuffer
)
4695 for (int i
= 0; i
< numAttachments
; i
++) {
4696 struct gl_renderbuffer_attachment
*att
=
4697 get_fb_attachment(ctx
, fb
, attachments
[i
]);
4702 /* If we're asked to invalidate just depth or just stencil, but the
4703 * attachment is packed depth/stencil, then we can only use
4704 * Driver.DiscardFramebuffer if the attachments list includes both depth
4705 * and stencil and they both point at the same renderbuffer.
4707 if ((attachments
[i
] == GL_DEPTH_ATTACHMENT
||
4708 attachments
[i
] == GL_STENCIL_ATTACHMENT
) &&
4709 (!att
->Renderbuffer
||
4710 att
->Renderbuffer
->_BaseFormat
== GL_DEPTH_STENCIL
)) {
4711 GLenum other_format
= (attachments
[i
] == GL_DEPTH_ATTACHMENT
?
4712 GL_STENCIL_ATTACHMENT
: GL_DEPTH_ATTACHMENT
);
4713 bool has_both
= false;
4714 for (int j
= 0; j
< numAttachments
; j
++) {
4715 if (attachments
[j
] == other_format
)
4720 if (fb
->Attachment
[BUFFER_DEPTH
].Renderbuffer
!=
4721 fb
->Attachment
[BUFFER_STENCIL
].Renderbuffer
|| !has_both
)
4725 ctx
->Driver
.DiscardFramebuffer(ctx
, fb
, att
);
4730 _mesa_InvalidateSubFramebuffer_no_error(GLenum target
, GLsizei numAttachments
,
4731 const GLenum
*attachments
, GLint x
,
4732 GLint y
, GLsizei width
, GLsizei height
)
4739 _mesa_InvalidateSubFramebuffer(GLenum target
, GLsizei numAttachments
,
4740 const GLenum
*attachments
, GLint x
, GLint y
,
4741 GLsizei width
, GLsizei height
)
4743 struct gl_framebuffer
*fb
;
4744 GET_CURRENT_CONTEXT(ctx
);
4746 fb
= get_framebuffer_target(ctx
, target
);
4748 _mesa_error(ctx
, GL_INVALID_ENUM
,
4749 "glInvalidateSubFramebuffer(invalid target %s)",
4750 _mesa_enum_to_string(target
));
4754 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4755 x
, y
, width
, height
,
4756 "glInvalidateSubFramebuffer");
4761 _mesa_InvalidateNamedFramebufferSubData(GLuint framebuffer
,
4762 GLsizei numAttachments
,
4763 const GLenum
*attachments
,
4765 GLsizei width
, GLsizei height
)
4767 struct gl_framebuffer
*fb
;
4768 GET_CURRENT_CONTEXT(ctx
);
4770 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
4771 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
4772 * default draw framebuffer is affected."
4775 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4776 "glInvalidateNamedFramebufferSubData");
4781 fb
= ctx
->WinSysDrawBuffer
;
4783 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4784 x
, y
, width
, height
,
4785 "glInvalidateNamedFramebufferSubData");
4789 _mesa_InvalidateFramebuffer_no_error(GLenum target
, GLsizei numAttachments
,
4790 const GLenum
*attachments
)
4792 struct gl_framebuffer
*fb
;
4793 GET_CURRENT_CONTEXT(ctx
);
4795 fb
= get_framebuffer_target(ctx
, target
);
4799 discard_framebuffer(ctx
, fb
, numAttachments
, attachments
);
4804 _mesa_InvalidateFramebuffer(GLenum target
, GLsizei numAttachments
,
4805 const GLenum
*attachments
)
4807 struct gl_framebuffer
*fb
;
4808 GET_CURRENT_CONTEXT(ctx
);
4810 fb
= get_framebuffer_target(ctx
, target
);
4812 _mesa_error(ctx
, GL_INVALID_ENUM
,
4813 "glInvalidateFramebuffer(invalid target %s)",
4814 _mesa_enum_to_string(target
));
4818 /* The GL_ARB_invalidate_subdata spec says:
4822 * void InvalidateFramebuffer(enum target,
4823 * sizei numAttachments,
4824 * const enum *attachments);
4826 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
4827 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
4828 * <MAX_VIEWPORT_DIMS[1]> respectively."
4830 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4832 ctx
->Const
.MaxViewportWidth
,
4833 ctx
->Const
.MaxViewportHeight
,
4834 "glInvalidateFramebuffer");
4836 discard_framebuffer(ctx
, fb
, numAttachments
, attachments
);
4841 _mesa_InvalidateNamedFramebufferData(GLuint framebuffer
,
4842 GLsizei numAttachments
,
4843 const GLenum
*attachments
)
4845 struct gl_framebuffer
*fb
;
4846 GET_CURRENT_CONTEXT(ctx
);
4848 /* The OpenGL 4.5 core spec (02.02.2015) says (in Section 17.4 Whole
4849 * Framebuffer Operations, PDF page 522): "If framebuffer is zero, the
4850 * default draw framebuffer is affected."
4853 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
4854 "glInvalidateNamedFramebufferData");
4859 fb
= ctx
->WinSysDrawBuffer
;
4861 /* The GL_ARB_invalidate_subdata spec says:
4865 * void InvalidateFramebuffer(enum target,
4866 * sizei numAttachments,
4867 * const enum *attachments);
4869 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
4870 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
4871 * <MAX_VIEWPORT_DIMS[1]> respectively."
4873 invalidate_framebuffer_storage(ctx
, fb
, numAttachments
, attachments
,
4875 ctx
->Const
.MaxViewportWidth
,
4876 ctx
->Const
.MaxViewportHeight
,
4877 "glInvalidateNamedFramebufferData");
4882 _mesa_DiscardFramebufferEXT(GLenum target
, GLsizei numAttachments
,
4883 const GLenum
*attachments
)
4885 struct gl_framebuffer
*fb
;
4888 GET_CURRENT_CONTEXT(ctx
);
4890 fb
= get_framebuffer_target(ctx
, target
);
4892 _mesa_error(ctx
, GL_INVALID_ENUM
,
4893 "glDiscardFramebufferEXT(target %s)",
4894 _mesa_enum_to_string(target
));
4898 if (numAttachments
< 0) {
4899 _mesa_error(ctx
, GL_INVALID_VALUE
,
4900 "glDiscardFramebufferEXT(numAttachments < 0)");
4904 for (i
= 0; i
< numAttachments
; i
++) {
4905 switch (attachments
[i
]) {
4909 if (_mesa_is_user_fbo(fb
))
4912 case GL_COLOR_ATTACHMENT0
:
4913 case GL_DEPTH_ATTACHMENT
:
4914 case GL_STENCIL_ATTACHMENT
:
4915 if (_mesa_is_winsys_fbo(fb
))
4923 discard_framebuffer(ctx
, fb
, numAttachments
, attachments
);
4928 _mesa_error(ctx
, GL_INVALID_ENUM
,
4929 "glDiscardFramebufferEXT(attachment %s)",
4930 _mesa_enum_to_string(attachments
[i
]));
4934 sample_locations(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
4935 GLuint start
, GLsizei count
, const GLfloat
*v
, bool no_error
,
4941 if (!ctx
->Extensions
.ARB_sample_locations
) {
4942 _mesa_error(ctx
, GL_INVALID_OPERATION
,
4944 "(ARB_sample_locations not available)", name
);
4948 if (start
+ count
> MAX_SAMPLE_LOCATION_TABLE_SIZE
) {
4949 _mesa_error(ctx
, GL_INVALID_VALUE
,
4950 "%s(start+size > sample location table size)", name
);
4955 if (!fb
->SampleLocationTable
) {
4956 size_t size
= MAX_SAMPLE_LOCATION_TABLE_SIZE
* 2 * sizeof(GLfloat
);
4957 fb
->SampleLocationTable
= malloc(size
);
4958 if (!fb
->SampleLocationTable
) {
4959 _mesa_error(ctx
, GL_OUT_OF_MEMORY
,
4960 "Cannot allocate sample location table");
4963 for (i
= 0; i
< MAX_SAMPLE_LOCATION_TABLE_SIZE
* 2; i
++)
4964 fb
->SampleLocationTable
[i
] = 0.5f
;
4967 for (i
= 0; i
< count
* 2; i
++) {
4968 /* The ARB_sample_locations spec says:
4970 * Sample locations outside of [0,1] result in undefined
4973 * To simplify driver implementations, we choose to clamp to
4974 * [0,1] and change NaN into 0.5.
4976 if (isnan(v
[i
]) || v
[i
] < 0.0f
|| v
[i
] > 1.0f
) {
4977 static GLuint msg_id
= 0;
4978 static const char* msg
= "Invalid sample location specified";
4979 _mesa_debug_get_id(&msg_id
);
4981 _mesa_log_msg(ctx
, MESA_DEBUG_SOURCE_API
, MESA_DEBUG_TYPE_UNDEFINED
,
4982 msg_id
, MESA_DEBUG_SEVERITY_HIGH
, strlen(msg
), msg
);
4986 fb
->SampleLocationTable
[start
* 2 + i
] = 0.5f
;
4988 fb
->SampleLocationTable
[start
* 2 + i
] = CLAMP(v
[i
], 0.0f
, 1.0f
);
4991 if (fb
== ctx
->DrawBuffer
)
4992 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleLocations
;
4996 _mesa_FramebufferSampleLocationsfvARB(GLenum target
, GLuint start
,
4997 GLsizei count
, const GLfloat
*v
)
4999 struct gl_framebuffer
*fb
;
5001 GET_CURRENT_CONTEXT(ctx
);
5003 fb
= get_framebuffer_target(ctx
, target
);
5005 _mesa_error(ctx
, GL_INVALID_ENUM
,
5006 "glFramebufferSampleLocationsfvARB(target %s)",
5007 _mesa_enum_to_string(target
));
5011 sample_locations(ctx
, fb
, start
, count
, v
, false,
5012 "glFramebufferSampleLocationsfvARB");
5016 _mesa_NamedFramebufferSampleLocationsfvARB(GLuint framebuffer
, GLuint start
,
5017 GLsizei count
, const GLfloat
*v
)
5019 struct gl_framebuffer
*fb
;
5021 GET_CURRENT_CONTEXT(ctx
);
5024 fb
= _mesa_lookup_framebuffer_err(ctx
, framebuffer
,
5025 "glNamedFramebufferSampleLocationsfvARB");
5030 fb
= ctx
->WinSysDrawBuffer
;
5032 sample_locations(ctx
, fb
, start
, count
, v
, false,
5033 "glNamedFramebufferSampleLocationsfvARB");
5037 _mesa_FramebufferSampleLocationsfvARB_no_error(GLenum target
, GLuint start
,
5038 GLsizei count
, const GLfloat
*v
)
5040 GET_CURRENT_CONTEXT(ctx
);
5041 sample_locations(ctx
, get_framebuffer_target(ctx
, target
), start
,
5042 count
, v
, true, "glFramebufferSampleLocationsfvARB");
5046 _mesa_NamedFramebufferSampleLocationsfvARB_no_error(GLuint framebuffer
,
5047 GLuint start
, GLsizei count
,
5050 GET_CURRENT_CONTEXT(ctx
);
5051 sample_locations(ctx
, _mesa_lookup_framebuffer(ctx
, framebuffer
), start
,
5052 count
, v
, true, "glNamedFramebufferSampleLocationsfvARB");
5056 _mesa_EvaluateDepthValuesARB(void)
5058 GET_CURRENT_CONTEXT(ctx
);
5060 if (!ctx
->Extensions
.ARB_sample_locations
) {
5061 _mesa_error(ctx
, GL_INVALID_OPERATION
,
5062 "EvaluateDepthValuesARB not supported (neither "
5063 "ARB_sample_locations nor NV_sample_locations is available)");
5067 if (ctx
->Driver
.EvaluateDepthValues
)
5068 ctx
->Driver
.EvaluateDepthValues(ctx
);