2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 1999-2009 VMware, Inc. All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
28 * GL_EXT/ARB_framebuffer_object extensions
41 #include "framebuffer.h"
42 #include "glformats.h"
45 #include "multisample.h"
47 #include "renderbuffer.h"
53 /** Set this to 1 to debug/log glBlitFramebuffer() calls */
60 * None of the GL_EXT_framebuffer_object functions are compiled into
67 * When glGenRender/FramebuffersEXT() is called we insert pointers to
68 * these placeholder objects into the hash table.
69 * Later, when the object ID is first bound, we replace the placeholder
70 * with the real frame/renderbuffer.
72 static struct gl_framebuffer DummyFramebuffer
;
73 static struct gl_renderbuffer DummyRenderbuffer
;
75 /* We bind this framebuffer when applications pass a NULL
76 * drawable/surface in make current. */
77 static struct gl_framebuffer IncompleteFramebuffer
;
81 delete_dummy_renderbuffer(struct gl_context
*ctx
, struct gl_renderbuffer
*rb
)
87 delete_dummy_framebuffer(struct gl_framebuffer
*fb
)
94 _mesa_init_fbobjects(struct gl_context
*ctx
)
96 _glthread_INIT_MUTEX(DummyFramebuffer
.Mutex
);
97 _glthread_INIT_MUTEX(DummyRenderbuffer
.Mutex
);
98 _glthread_INIT_MUTEX(IncompleteFramebuffer
.Mutex
);
99 DummyFramebuffer
.Delete
= delete_dummy_framebuffer
;
100 DummyRenderbuffer
.Delete
= delete_dummy_renderbuffer
;
101 IncompleteFramebuffer
.Delete
= delete_dummy_framebuffer
;
104 struct gl_framebuffer
*
105 _mesa_get_incomplete_framebuffer(void)
107 return &IncompleteFramebuffer
;
111 * Helper routine for getting a gl_renderbuffer.
113 struct gl_renderbuffer
*
114 _mesa_lookup_renderbuffer(struct gl_context
*ctx
, GLuint id
)
116 struct gl_renderbuffer
*rb
;
121 rb
= (struct gl_renderbuffer
*)
122 _mesa_HashLookup(ctx
->Shared
->RenderBuffers
, id
);
128 * Helper routine for getting a gl_framebuffer.
130 struct gl_framebuffer
*
131 _mesa_lookup_framebuffer(struct gl_context
*ctx
, GLuint id
)
133 struct gl_framebuffer
*fb
;
138 fb
= (struct gl_framebuffer
*)
139 _mesa_HashLookup(ctx
->Shared
->FrameBuffers
, id
);
145 * Mark the given framebuffer as invalid. This will force the
146 * test for framebuffer completeness to be done before the framebuffer
150 invalidate_framebuffer(struct gl_framebuffer
*fb
)
152 fb
->_Status
= 0; /* "indeterminate" */
157 * Return the gl_framebuffer object which corresponds to the given
158 * framebuffer target, such as GL_DRAW_FRAMEBUFFER.
159 * Check support for GL_EXT_framebuffer_blit to determine if certain
161 * \return gl_framebuffer pointer or NULL if target is illegal
163 static struct gl_framebuffer
*
164 get_framebuffer_target(struct gl_context
*ctx
, GLenum target
)
166 bool have_fb_blit
= _mesa_is_gles3(ctx
) ||
167 (ctx
->Extensions
.EXT_framebuffer_blit
&& _mesa_is_desktop_gl(ctx
));
169 case GL_DRAW_FRAMEBUFFER
:
170 return have_fb_blit
? ctx
->DrawBuffer
: NULL
;
171 case GL_READ_FRAMEBUFFER
:
172 return have_fb_blit
? ctx
->ReadBuffer
: NULL
;
173 case GL_FRAMEBUFFER_EXT
:
174 return ctx
->DrawBuffer
;
182 * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding
183 * gl_renderbuffer_attachment object.
184 * This function is only used for user-created FB objects, not the
185 * default / window-system FB object.
186 * If \p attachment is GL_DEPTH_STENCIL_ATTACHMENT, return a pointer to
187 * the depth buffer attachment point.
189 struct gl_renderbuffer_attachment
*
190 _mesa_get_attachment(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
195 assert(_mesa_is_user_fbo(fb
));
197 switch (attachment
) {
198 case GL_COLOR_ATTACHMENT0_EXT
:
199 case GL_COLOR_ATTACHMENT1_EXT
:
200 case GL_COLOR_ATTACHMENT2_EXT
:
201 case GL_COLOR_ATTACHMENT3_EXT
:
202 case GL_COLOR_ATTACHMENT4_EXT
:
203 case GL_COLOR_ATTACHMENT5_EXT
:
204 case GL_COLOR_ATTACHMENT6_EXT
:
205 case GL_COLOR_ATTACHMENT7_EXT
:
206 case GL_COLOR_ATTACHMENT8_EXT
:
207 case GL_COLOR_ATTACHMENT9_EXT
:
208 case GL_COLOR_ATTACHMENT10_EXT
:
209 case GL_COLOR_ATTACHMENT11_EXT
:
210 case GL_COLOR_ATTACHMENT12_EXT
:
211 case GL_COLOR_ATTACHMENT13_EXT
:
212 case GL_COLOR_ATTACHMENT14_EXT
:
213 case GL_COLOR_ATTACHMENT15_EXT
:
214 /* Only OpenGL ES 1.x forbids color attachments other than
215 * GL_COLOR_ATTACHMENT0. For all other APIs the limit set by the
218 i
= attachment
- GL_COLOR_ATTACHMENT0_EXT
;
219 if (i
>= ctx
->Const
.MaxColorAttachments
220 || (i
> 0 && ctx
->API
== API_OPENGLES
)) {
223 return &fb
->Attachment
[BUFFER_COLOR0
+ i
];
224 case GL_DEPTH_STENCIL_ATTACHMENT
:
225 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles3(ctx
))
228 case GL_DEPTH_ATTACHMENT_EXT
:
229 return &fb
->Attachment
[BUFFER_DEPTH
];
230 case GL_STENCIL_ATTACHMENT_EXT
:
231 return &fb
->Attachment
[BUFFER_STENCIL
];
239 * As above, but only used for getting attachments of the default /
240 * window-system framebuffer (not user-created framebuffer objects).
242 static struct gl_renderbuffer_attachment
*
243 _mesa_get_fb0_attachment(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
246 assert(_mesa_is_winsys_fbo(fb
));
248 if (_mesa_is_gles3(ctx
)) {
249 assert(attachment
== GL_BACK
||
250 attachment
== GL_DEPTH
||
251 attachment
== GL_STENCIL
);
252 switch (attachment
) {
254 /* Since there is no stereo rendering in ES 3.0, only return the
257 if (ctx
->DrawBuffer
->Visual
.doubleBufferMode
)
258 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
259 return &fb
->Attachment
[BUFFER_FRONT_LEFT
];
261 return &fb
->Attachment
[BUFFER_DEPTH
];
263 return &fb
->Attachment
[BUFFER_STENCIL
];
267 switch (attachment
) {
269 return &fb
->Attachment
[BUFFER_FRONT_LEFT
];
271 return &fb
->Attachment
[BUFFER_FRONT_RIGHT
];
273 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
275 return &fb
->Attachment
[BUFFER_BACK_RIGHT
];
277 if (fb
->Visual
.numAuxBuffers
== 1) {
278 return &fb
->Attachment
[BUFFER_AUX0
];
282 /* Page 336 (page 352 of the PDF) of the OpenGL 3.0 spec says:
284 * "If the default framebuffer is bound to target, then attachment must
285 * be one of FRONT LEFT, FRONT RIGHT, BACK LEFT, BACK RIGHT, or AUXi,
286 * identifying a color buffer; DEPTH, identifying the depth buffer; or
287 * STENCIL, identifying the stencil buffer."
289 * Revision #34 of the ARB_framebuffer_object spec has essentially the same
290 * language. However, revision #33 of the ARB_framebuffer_object spec
293 * "If the default framebuffer is bound to <target>, then <attachment>
294 * must be one of FRONT_LEFT, FRONT_RIGHT, BACK_LEFT, BACK_RIGHT, AUXi,
295 * DEPTH_BUFFER, or STENCIL_BUFFER, identifying a color buffer, the
296 * depth buffer, or the stencil buffer, and <pname> may be
297 * FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE or
298 * FRAMEBUFFER_ATTACHMENT_OBJECT_NAME."
300 * The enum values for DEPTH_BUFFER and STENCIL_BUFFER have been removed
301 * from glext.h, so shipping apps should not use those values.
303 * Note that neither EXT_framebuffer_object nor OES_framebuffer_object
304 * support queries of the window system FBO.
307 return &fb
->Attachment
[BUFFER_DEPTH
];
309 return &fb
->Attachment
[BUFFER_STENCIL
];
318 * Remove any texture or renderbuffer attached to the given attachment
319 * point. Update reference counts, etc.
322 _mesa_remove_attachment(struct gl_context
*ctx
,
323 struct gl_renderbuffer_attachment
*att
)
325 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
327 /* tell driver that we're done rendering to this texture. */
328 if (rb
&& rb
->NeedsFinishRenderTexture
)
329 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
331 if (att
->Type
== GL_TEXTURE
) {
332 ASSERT(att
->Texture
);
333 _mesa_reference_texobj(&att
->Texture
, NULL
); /* unbind */
334 ASSERT(!att
->Texture
);
336 if (att
->Type
== GL_TEXTURE
|| att
->Type
== GL_RENDERBUFFER_EXT
) {
337 ASSERT(!att
->Texture
);
338 _mesa_reference_renderbuffer(&att
->Renderbuffer
, NULL
); /* unbind */
339 ASSERT(!att
->Renderbuffer
);
342 att
->Complete
= GL_TRUE
;
346 * Verify a couple error conditions that will lead to an incomplete FBO and
347 * may cause problems for the driver's RenderTexture path.
350 driver_RenderTexture_is_safe(const struct gl_renderbuffer_attachment
*att
)
352 const struct gl_texture_image
*const texImage
=
353 att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
355 if (texImage
->Width
== 0 || texImage
->Height
== 0 || texImage
->Depth
== 0)
358 if ((texImage
->TexObject
->Target
== GL_TEXTURE_1D_ARRAY
359 && att
->Zoffset
>= texImage
->Height
)
360 || (texImage
->TexObject
->Target
!= GL_TEXTURE_1D_ARRAY
361 && att
->Zoffset
>= texImage
->Depth
))
368 * Create a renderbuffer which will be set up by the driver to wrap the
369 * texture image slice.
371 * By using a gl_renderbuffer (like user-allocated renderbuffers), drivers get
372 * to share most of their framebuffer rendering code between winsys,
373 * renderbuffer, and texture attachments.
375 * The allocated renderbuffer uses a non-zero Name so that drivers can check
376 * it for determining vertical orientation, but we use ~0 to make it fairly
377 * unambiguous with actual user (non-texture) renderbuffers.
380 _mesa_update_texture_renderbuffer(struct gl_context
*ctx
,
381 struct gl_framebuffer
*fb
,
382 struct gl_renderbuffer_attachment
*att
)
384 struct gl_texture_image
*texImage
;
385 struct gl_renderbuffer
*rb
;
387 texImage
= att
->Texture
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
389 rb
= att
->Renderbuffer
;
391 rb
= ctx
->Driver
.NewRenderbuffer(ctx
, ~0);
393 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glFramebufferTexture()");
396 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
398 /* This can't get called on a texture renderbuffer, so set it to NULL
399 * for clarity compared to user renderbuffers.
401 rb
->AllocStorage
= NULL
;
403 rb
->NeedsFinishRenderTexture
= ctx
->Driver
.FinishRenderTexture
!= NULL
;
409 rb
->_BaseFormat
= texImage
->_BaseFormat
;
410 rb
->Format
= texImage
->TexFormat
;
411 rb
->InternalFormat
= texImage
->InternalFormat
;
412 rb
->Width
= texImage
->Width2
;
413 rb
->Height
= texImage
->Height2
;
414 rb
->NumSamples
= texImage
->NumSamples
;
415 rb
->TexImage
= texImage
;
417 if (driver_RenderTexture_is_safe(att
))
418 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
422 * Bind a texture object to an attachment point.
423 * The previous binding, if any, will be removed first.
426 _mesa_set_texture_attachment(struct gl_context
*ctx
,
427 struct gl_framebuffer
*fb
,
428 struct gl_renderbuffer_attachment
*att
,
429 struct gl_texture_object
*texObj
,
430 GLenum texTarget
, GLuint level
, GLuint zoffset
,
433 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
435 if (rb
&& rb
->NeedsFinishRenderTexture
)
436 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
438 if (att
->Texture
== texObj
) {
439 /* re-attaching same texture */
440 ASSERT(att
->Type
== GL_TEXTURE
);
444 _mesa_remove_attachment(ctx
, att
);
445 att
->Type
= GL_TEXTURE
;
446 assert(!att
->Texture
);
447 _mesa_reference_texobj(&att
->Texture
, texObj
);
449 invalidate_framebuffer(fb
);
451 /* always update these fields */
452 att
->TextureLevel
= level
;
453 att
->CubeMapFace
= _mesa_tex_target_to_face(texTarget
);
454 att
->Zoffset
= zoffset
;
455 att
->Layered
= layered
;
456 att
->Complete
= GL_FALSE
;
458 _mesa_update_texture_renderbuffer(ctx
, fb
, att
);
463 * Bind a renderbuffer to an attachment point.
464 * The previous binding, if any, will be removed first.
467 _mesa_set_renderbuffer_attachment(struct gl_context
*ctx
,
468 struct gl_renderbuffer_attachment
*att
,
469 struct gl_renderbuffer
*rb
)
471 /* XXX check if re-doing same attachment, exit early */
472 _mesa_remove_attachment(ctx
, att
);
473 att
->Type
= GL_RENDERBUFFER_EXT
;
474 att
->Texture
= NULL
; /* just to be safe */
475 att
->Complete
= GL_FALSE
;
476 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
481 * Fallback for ctx->Driver.FramebufferRenderbuffer()
482 * Attach a renderbuffer object to a framebuffer object.
485 _mesa_framebuffer_renderbuffer(struct gl_context
*ctx
,
486 struct gl_framebuffer
*fb
,
487 GLenum attachment
, struct gl_renderbuffer
*rb
)
489 struct gl_renderbuffer_attachment
*att
;
491 _glthread_LOCK_MUTEX(fb
->Mutex
);
493 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
496 _mesa_set_renderbuffer_attachment(ctx
, att
, rb
);
497 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
498 /* do stencil attachment here (depth already done above) */
499 att
= _mesa_get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
);
501 _mesa_set_renderbuffer_attachment(ctx
, att
, rb
);
503 rb
->AttachedAnytime
= GL_TRUE
;
506 _mesa_remove_attachment(ctx
, att
);
509 invalidate_framebuffer(fb
);
511 _glthread_UNLOCK_MUTEX(fb
->Mutex
);
516 * Fallback for ctx->Driver.ValidateFramebuffer()
517 * Check if the renderbuffer's formats are supported by the software
519 * Drivers should probably override this.
522 _mesa_validate_framebuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
525 for (buf
= 0; buf
< BUFFER_COUNT
; buf
++) {
526 const struct gl_renderbuffer
*rb
= fb
->Attachment
[buf
].Renderbuffer
;
528 switch (rb
->_BaseFormat
) {
530 case GL_LUMINANCE_ALPHA
:
535 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
539 switch (rb
->Format
) {
540 /* XXX This list is likely incomplete. */
541 case MESA_FORMAT_RGB9_E5_FLOAT
:
542 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
545 /* render buffer format is supported by software rendering */
554 * Return true if the framebuffer has a combined depth/stencil
555 * renderbuffer attached.
558 _mesa_has_depthstencil_combined(const struct gl_framebuffer
*fb
)
560 const struct gl_renderbuffer_attachment
*depth
=
561 &fb
->Attachment
[BUFFER_DEPTH
];
562 const struct gl_renderbuffer_attachment
*stencil
=
563 &fb
->Attachment
[BUFFER_STENCIL
];
565 if (depth
->Type
== stencil
->Type
) {
566 if (depth
->Type
== GL_RENDERBUFFER_EXT
&&
567 depth
->Renderbuffer
== stencil
->Renderbuffer
)
570 if (depth
->Type
== GL_TEXTURE
&&
571 depth
->Texture
== stencil
->Texture
)
583 att_incomplete(const char *msg
)
585 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
586 _mesa_debug(NULL
, "attachment incomplete: %s\n", msg
);
595 fbo_incomplete(struct gl_context
*ctx
, const char *msg
, int index
)
597 static GLuint msg_id
;
599 _mesa_gl_debug(ctx
, &msg_id
,
600 MESA_DEBUG_TYPE_OTHER
,
601 MESA_DEBUG_SEVERITY_MEDIUM
,
602 "FBO incomplete: %s [%d]\n", msg
, index
);
604 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
605 _mesa_debug(NULL
, "FBO Incomplete: %s [%d]\n", msg
, index
);
611 * Is the given base format a legal format for a color renderbuffer?
614 _mesa_is_legal_color_format(const struct gl_context
*ctx
, GLenum baseFormat
)
616 switch (baseFormat
) {
621 case GL_LUMINANCE_ALPHA
:
624 return ctx
->API
== API_OPENGL_COMPAT
&&
625 ctx
->Extensions
.ARB_framebuffer_object
;
628 return ctx
->Extensions
.ARB_texture_rg
;
636 * Is the given base format a legal format for a color renderbuffer?
639 is_format_color_renderable(const struct gl_context
*ctx
, gl_format format
, GLenum internalFormat
)
641 const GLenum baseFormat
=
642 _mesa_get_format_base_format(format
);
645 valid
= _mesa_is_legal_color_format(ctx
, baseFormat
);
646 if (!valid
|| _mesa_is_desktop_gl(ctx
)) {
650 /* Reject additional cases for GLES */
651 switch (internalFormat
) {
671 if (format
== MESA_FORMAT_ARGB2101010
&& internalFormat
!= GL_RGB10_A2
) {
680 * Is the given base format a legal format for a depth/stencil renderbuffer?
683 is_legal_depth_format(const struct gl_context
*ctx
, GLenum baseFormat
)
685 switch (baseFormat
) {
686 case GL_DEPTH_COMPONENT
:
687 case GL_DEPTH_STENCIL_EXT
:
696 * Test if an attachment point is complete and update its Complete field.
697 * \param format if GL_COLOR, this is a color attachment point,
698 * if GL_DEPTH, this is a depth component attachment point,
699 * if GL_STENCIL, this is a stencil component attachment point.
702 test_attachment_completeness(const struct gl_context
*ctx
, GLenum format
,
703 struct gl_renderbuffer_attachment
*att
)
705 assert(format
== GL_COLOR
|| format
== GL_DEPTH
|| format
== GL_STENCIL
);
707 /* assume complete */
708 att
->Complete
= GL_TRUE
;
710 /* Look for reasons why the attachment might be incomplete */
711 if (att
->Type
== GL_TEXTURE
) {
712 const struct gl_texture_object
*texObj
= att
->Texture
;
713 struct gl_texture_image
*texImage
;
717 att_incomplete("no texobj");
718 att
->Complete
= GL_FALSE
;
722 texImage
= texObj
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
724 att_incomplete("no teximage");
725 att
->Complete
= GL_FALSE
;
728 if (texImage
->Width
< 1 || texImage
->Height
< 1) {
729 att_incomplete("teximage width/height=0");
730 att
->Complete
= GL_FALSE
;
734 switch (texObj
->Target
) {
736 if (att
->Zoffset
>= texImage
->Depth
) {
737 att_incomplete("bad z offset");
738 att
->Complete
= GL_FALSE
;
742 case GL_TEXTURE_1D_ARRAY
:
743 if (att
->Zoffset
>= texImage
->Height
) {
744 att_incomplete("bad 1D-array layer");
745 att
->Complete
= GL_FALSE
;
749 case GL_TEXTURE_2D_ARRAY
:
750 if (att
->Zoffset
>= texImage
->Depth
) {
751 att_incomplete("bad 2D-array layer");
752 att
->Complete
= GL_FALSE
;
756 case GL_TEXTURE_CUBE_MAP_ARRAY
:
757 if (att
->Zoffset
>= texImage
->Depth
) {
758 att_incomplete("bad cube-array layer");
759 att
->Complete
= GL_FALSE
;
765 baseFormat
= _mesa_get_format_base_format(texImage
->TexFormat
);
767 if (format
== GL_COLOR
) {
768 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
769 att_incomplete("bad format");
770 att
->Complete
= GL_FALSE
;
773 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
774 att_incomplete("compressed internalformat");
775 att
->Complete
= GL_FALSE
;
779 else if (format
== GL_DEPTH
) {
780 if (baseFormat
== GL_DEPTH_COMPONENT
) {
783 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
784 ctx
->Extensions
.ARB_depth_texture
&&
785 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
789 att
->Complete
= GL_FALSE
;
790 att_incomplete("bad depth format");
795 ASSERT(format
== GL_STENCIL
);
796 if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
797 ctx
->Extensions
.ARB_depth_texture
&&
798 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
802 /* no such thing as stencil-only textures */
803 att_incomplete("illegal stencil texture");
804 att
->Complete
= GL_FALSE
;
809 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
810 const GLenum baseFormat
=
811 _mesa_get_format_base_format(att
->Renderbuffer
->Format
);
813 ASSERT(att
->Renderbuffer
);
814 if (!att
->Renderbuffer
->InternalFormat
||
815 att
->Renderbuffer
->Width
< 1 ||
816 att
->Renderbuffer
->Height
< 1) {
817 att_incomplete("0x0 renderbuffer");
818 att
->Complete
= GL_FALSE
;
821 if (format
== GL_COLOR
) {
822 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
823 att_incomplete("bad renderbuffer color format");
824 att
->Complete
= GL_FALSE
;
828 else if (format
== GL_DEPTH
) {
829 if (baseFormat
== GL_DEPTH_COMPONENT
) {
832 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
833 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
837 att_incomplete("bad renderbuffer depth format");
838 att
->Complete
= GL_FALSE
;
843 assert(format
== GL_STENCIL
);
844 if (baseFormat
== GL_STENCIL_INDEX
) {
847 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
848 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
852 att
->Complete
= GL_FALSE
;
853 att_incomplete("bad renderbuffer stencil format");
859 ASSERT(att
->Type
== GL_NONE
);
867 * Test if the given framebuffer object is complete and update its
868 * Status field with the results.
869 * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
870 * driver to make hardware-specific validation/completeness checks.
871 * Also update the framebuffer's Width and Height fields if the
872 * framebuffer is complete.
875 _mesa_test_framebuffer_completeness(struct gl_context
*ctx
,
876 struct gl_framebuffer
*fb
)
879 GLenum intFormat
= GL_NONE
; /* color buffers' internal format */
880 GLuint minWidth
= ~0, minHeight
= ~0, maxWidth
= 0, maxHeight
= 0;
881 GLint numSamples
= -1;
882 GLint fixedSampleLocations
= -1;
885 bool layer_count_valid
= false;
886 GLuint layer_count
= 0, att_layer_count
;
888 assert(_mesa_is_user_fbo(fb
));
890 /* we're changing framebuffer fields here */
891 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
896 fb
->_AllColorBuffersFixedPoint
= GL_TRUE
;
897 fb
->_HasSNormOrFloatColorBuffer
= GL_FALSE
;
899 /* Start at -2 to more easily loop over all attachment points.
904 for (i
= -2; i
< (GLint
) ctx
->Const
.MaxColorAttachments
; i
++) {
905 struct gl_renderbuffer_attachment
*att
;
910 * XXX for ARB_fbo, only check color buffers that are named by
911 * GL_READ_BUFFER and GL_DRAW_BUFFERi.
914 /* check for attachment completeness
917 att
= &fb
->Attachment
[BUFFER_DEPTH
];
918 test_attachment_completeness(ctx
, GL_DEPTH
, att
);
919 if (!att
->Complete
) {
920 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
921 fbo_incomplete(ctx
, "depth attachment incomplete", -1);
926 att
= &fb
->Attachment
[BUFFER_STENCIL
];
927 test_attachment_completeness(ctx
, GL_STENCIL
, att
);
928 if (!att
->Complete
) {
929 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
930 fbo_incomplete(ctx
, "stencil attachment incomplete", -1);
935 att
= &fb
->Attachment
[BUFFER_COLOR0
+ i
];
936 test_attachment_completeness(ctx
, GL_COLOR
, att
);
937 if (!att
->Complete
) {
938 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
939 fbo_incomplete(ctx
, "color attachment incomplete", i
);
944 /* get width, height, format of the renderbuffer/texture
946 if (att
->Type
== GL_TEXTURE
) {
947 const struct gl_texture_image
*texImg
= att
->Renderbuffer
->TexImage
;
948 minWidth
= MIN2(minWidth
, texImg
->Width
);
949 maxWidth
= MAX2(maxWidth
, texImg
->Width
);
950 minHeight
= MIN2(minHeight
, texImg
->Height
);
951 maxHeight
= MAX2(maxHeight
, texImg
->Height
);
952 f
= texImg
->_BaseFormat
;
953 attFormat
= texImg
->TexFormat
;
956 if (!is_format_color_renderable(ctx
, attFormat
, texImg
->InternalFormat
) &&
957 !is_legal_depth_format(ctx
, f
)) {
958 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
959 fbo_incomplete(ctx
, "texture attachment incomplete", -1);
964 numSamples
= texImg
->NumSamples
;
965 else if (numSamples
!= texImg
->NumSamples
) {
966 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
967 fbo_incomplete(ctx
, "inconsistent sample count", -1);
971 if (fixedSampleLocations
< 0)
972 fixedSampleLocations
= texImg
->FixedSampleLocations
;
973 else if (fixedSampleLocations
!= texImg
->FixedSampleLocations
) {
974 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
975 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
979 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
980 minWidth
= MIN2(minWidth
, att
->Renderbuffer
->Width
);
981 maxWidth
= MAX2(minWidth
, att
->Renderbuffer
->Width
);
982 minHeight
= MIN2(minHeight
, att
->Renderbuffer
->Height
);
983 maxHeight
= MAX2(minHeight
, att
->Renderbuffer
->Height
);
984 f
= att
->Renderbuffer
->InternalFormat
;
985 attFormat
= att
->Renderbuffer
->Format
;
989 numSamples
= att
->Renderbuffer
->NumSamples
;
990 else if (numSamples
!= att
->Renderbuffer
->NumSamples
) {
991 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
992 fbo_incomplete(ctx
, "inconsistent sample count", -1);
996 /* RENDERBUFFER has fixedSampleLocations implicitly true */
997 if (fixedSampleLocations
< 0)
998 fixedSampleLocations
= GL_TRUE
;
999 else if (fixedSampleLocations
!= GL_TRUE
) {
1000 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
1001 fbo_incomplete(ctx
, "inconsistent fixed sample locations", -1);
1006 assert(att
->Type
== GL_NONE
);
1010 /* check if integer color */
1011 fb
->_IntegerColor
= _mesa_is_format_integer_color(attFormat
);
1013 /* Update _AllColorBuffersFixedPoint and _HasSNormOrFloatColorBuffer. */
1015 GLenum type
= _mesa_get_format_datatype(attFormat
);
1017 fb
->_AllColorBuffersFixedPoint
=
1018 fb
->_AllColorBuffersFixedPoint
&&
1019 (type
== GL_UNSIGNED_NORMALIZED
|| type
== GL_SIGNED_NORMALIZED
);
1021 fb
->_HasSNormOrFloatColorBuffer
=
1022 fb
->_HasSNormOrFloatColorBuffer
||
1023 type
== GL_SIGNED_NORMALIZED
|| type
== GL_FLOAT
;
1026 /* Error-check width, height, format */
1027 if (numImages
== 1) {
1034 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
1035 /* check that width, height, format are same */
1036 if (minWidth
!= maxWidth
|| minHeight
!= maxHeight
) {
1037 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
;
1038 fbo_incomplete(ctx
, "width or height mismatch", -1);
1041 /* check that all color buffers are the same format */
1042 if (intFormat
!= GL_NONE
&& f
!= intFormat
) {
1043 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
1044 fbo_incomplete(ctx
, "format mismatch", -1);
1050 /* Check that the format is valid. (MESA_FORMAT_NONE means unsupported)
1052 if (att
->Type
== GL_RENDERBUFFER
&&
1053 att
->Renderbuffer
->Format
== MESA_FORMAT_NONE
) {
1054 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
1055 fbo_incomplete(ctx
, "unsupported renderbuffer format", i
);
1059 /* Check that layered rendering is consistent. */
1060 att_layer_count
= att
->Layered
? att
->Renderbuffer
->Depth
: 0;
1061 if (!layer_count_valid
) {
1062 layer_count
= att_layer_count
;
1063 layer_count_valid
= true;
1064 } else if (layer_count
!= att_layer_count
) {
1065 if (layer_count
== 0 || att_layer_count
== 0) {
1066 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
;
1067 fbo_incomplete(ctx
, "framebuffer attachment layer mode is inconsistent", i
);
1069 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_LAYER_COUNT_ARB
;
1070 fbo_incomplete(ctx
, "framebuffer attachment layer count is inconsistent", i
);
1076 fb
->Layered
= layer_count
> 0;
1078 if (_mesa_is_desktop_gl(ctx
) && !ctx
->Extensions
.ARB_ES2_compatibility
) {
1079 /* Check that all DrawBuffers are present */
1080 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
1081 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
1082 const struct gl_renderbuffer_attachment
*att
1083 = _mesa_get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
]);
1085 if (att
->Type
== GL_NONE
) {
1086 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
1087 fbo_incomplete(ctx
, "missing drawbuffer", j
);
1093 /* Check that the ReadBuffer is present */
1094 if (fb
->ColorReadBuffer
!= GL_NONE
) {
1095 const struct gl_renderbuffer_attachment
*att
1096 = _mesa_get_attachment(ctx
, fb
, fb
->ColorReadBuffer
);
1098 if (att
->Type
== GL_NONE
) {
1099 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
1100 fbo_incomplete(ctx
, "missing readbuffer", -1);
1106 if (numImages
== 0) {
1107 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
1108 fbo_incomplete(ctx
, "no attachments", -1);
1112 /* Provisionally set status = COMPLETE ... */
1113 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
1115 /* ... but the driver may say the FB is incomplete.
1116 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
1119 if (ctx
->Driver
.ValidateFramebuffer
) {
1120 ctx
->Driver
.ValidateFramebuffer(ctx
, fb
);
1121 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
1122 fbo_incomplete(ctx
, "driver marked FBO as incomplete", -1);
1126 if (fb
->_Status
== GL_FRAMEBUFFER_COMPLETE_EXT
) {
1128 * Note that if ARB_framebuffer_object is supported and the attached
1129 * renderbuffers/textures are different sizes, the framebuffer
1130 * width/height will be set to the smallest width/height.
1132 fb
->Width
= minWidth
;
1133 fb
->Height
= minHeight
;
1135 /* finally, update the visual info for the framebuffer */
1136 _mesa_update_framebuffer_visual(ctx
, fb
);
1141 GLboolean GLAPIENTRY
1142 _mesa_IsRenderbuffer(GLuint renderbuffer
)
1144 GET_CURRENT_CONTEXT(ctx
);
1145 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1147 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1148 if (rb
!= NULL
&& rb
!= &DummyRenderbuffer
)
1156 bind_renderbuffer(GLenum target
, GLuint renderbuffer
, bool allow_user_names
)
1158 struct gl_renderbuffer
*newRb
;
1159 GET_CURRENT_CONTEXT(ctx
);
1161 if (target
!= GL_RENDERBUFFER_EXT
) {
1162 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindRenderbufferEXT(target)");
1166 /* No need to flush here since the render buffer binding has no
1167 * effect on rendering state.
1171 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
1172 if (newRb
== &DummyRenderbuffer
) {
1173 /* ID was reserved, but no real renderbuffer object made yet */
1176 else if (!newRb
&& !allow_user_names
) {
1177 /* All RB IDs must be Gen'd */
1178 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindRenderbuffer(buffer)");
1183 /* create new renderbuffer object */
1184 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
1186 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindRenderbufferEXT");
1189 ASSERT(newRb
->AllocStorage
);
1190 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
1191 newRb
->RefCount
= 1; /* referenced by hash table */
1198 ASSERT(newRb
!= &DummyRenderbuffer
);
1200 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
1204 _mesa_BindRenderbuffer(GLenum target
, GLuint renderbuffer
)
1206 GET_CURRENT_CONTEXT(ctx
);
1208 /* OpenGL ES glBindRenderbuffer and glBindRenderbufferOES use this same
1209 * entry point, but they allow the use of user-generated names.
1211 bind_renderbuffer(target
, renderbuffer
, _mesa_is_gles(ctx
));
1215 _mesa_BindRenderbufferEXT(GLenum target
, GLuint renderbuffer
)
1217 /* This function should not be in the dispatch table for core profile /
1218 * OpenGL 3.1, so execution should never get here in those cases -- no
1219 * need for an explicit test.
1221 bind_renderbuffer(target
, renderbuffer
, true);
1226 * If the given renderbuffer is anywhere attached to the framebuffer, detach
1228 * This is used when a renderbuffer object is deleted.
1229 * The spec calls for unbinding.
1232 * \c true if the renderbuffer was detached from an attachment point. \c
1236 _mesa_detach_renderbuffer(struct gl_context
*ctx
,
1237 struct gl_framebuffer
*fb
,
1241 bool progress
= false;
1243 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1244 if (fb
->Attachment
[i
].Renderbuffer
== att
) {
1245 _mesa_remove_attachment(ctx
, &fb
->Attachment
[i
]);
1250 /* Section 4.4.4 (Framebuffer Completeness), subsection "Whole Framebuffer
1251 * Completeness," of the OpenGL 3.1 spec says:
1253 * "Performing any of the following actions may change whether the
1254 * framebuffer is considered complete or incomplete:
1258 * - Deleting, with DeleteTextures or DeleteRenderbuffers, an object
1259 * containing an image that is attached to a framebuffer object
1260 * that is bound to the framebuffer."
1263 invalidate_framebuffer(fb
);
1270 _mesa_DeleteRenderbuffers(GLsizei n
, const GLuint
*renderbuffers
)
1273 GET_CURRENT_CONTEXT(ctx
);
1275 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1277 for (i
= 0; i
< n
; i
++) {
1278 if (renderbuffers
[i
] > 0) {
1279 struct gl_renderbuffer
*rb
;
1280 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
1282 /* check if deleting currently bound renderbuffer object */
1283 if (rb
== ctx
->CurrentRenderbuffer
) {
1285 ASSERT(rb
->RefCount
>= 2);
1286 _mesa_BindRenderbuffer(GL_RENDERBUFFER_EXT
, 0);
1289 if (_mesa_is_user_fbo(ctx
->DrawBuffer
)) {
1290 _mesa_detach_renderbuffer(ctx
, ctx
->DrawBuffer
, rb
);
1292 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)
1293 && ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
1294 _mesa_detach_renderbuffer(ctx
, ctx
->ReadBuffer
, rb
);
1297 /* Remove from hash table immediately, to free the ID.
1298 * But the object will not be freed until it's no longer
1299 * referenced anywhere else.
1301 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
1303 if (rb
!= &DummyRenderbuffer
) {
1304 /* no longer referenced by hash table */
1305 _mesa_reference_renderbuffer(&rb
, NULL
);
1314 _mesa_GenRenderbuffers(GLsizei n
, GLuint
*renderbuffers
)
1316 GET_CURRENT_CONTEXT(ctx
);
1321 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenRenderbuffersEXT(n)");
1328 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
1330 for (i
= 0; i
< n
; i
++) {
1331 GLuint name
= first
+ i
;
1332 renderbuffers
[i
] = name
;
1333 /* insert dummy placeholder into hash table */
1334 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1335 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, name
, &DummyRenderbuffer
);
1336 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1342 * Given an internal format token for a render buffer, return the
1343 * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
1344 * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,
1345 * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).
1347 * This is similar to _mesa_base_tex_format() but the set of valid
1348 * internal formats is different.
1350 * Note that even if a format is determined to be legal here, validation
1351 * of the FBO may fail if the format is not supported by the driver/GPU.
1353 * \param internalFormat as passed to glRenderbufferStorage()
1354 * \return the base internal format, or 0 if internalFormat is illegal
1357 _mesa_base_fbo_format(struct gl_context
*ctx
, GLenum internalFormat
)
1360 * Notes: some formats such as alpha, luminance, etc. were added
1361 * with GL_ARB_framebuffer_object.
1363 switch (internalFormat
) {
1369 return ctx
->API
== API_OPENGL_COMPAT
&& ctx
->Extensions
.ARB_framebuffer_object
1374 case GL_LUMINANCE12
:
1375 case GL_LUMINANCE16
:
1376 return ctx
->API
== API_OPENGL_COMPAT
&& ctx
->Extensions
.ARB_framebuffer_object
1378 case GL_LUMINANCE_ALPHA
:
1379 case GL_LUMINANCE4_ALPHA4
:
1380 case GL_LUMINANCE6_ALPHA2
:
1381 case GL_LUMINANCE8_ALPHA8
:
1382 case GL_LUMINANCE12_ALPHA4
:
1383 case GL_LUMINANCE12_ALPHA12
:
1384 case GL_LUMINANCE16_ALPHA16
:
1385 return ctx
->API
== API_OPENGL_COMPAT
&& ctx
->Extensions
.ARB_framebuffer_object
1386 ? GL_LUMINANCE_ALPHA
: 0;
1390 case GL_INTENSITY12
:
1391 case GL_INTENSITY16
:
1392 return ctx
->API
== API_OPENGL_COMPAT
&& ctx
->Extensions
.ARB_framebuffer_object
1403 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
1405 return _mesa_is_desktop_gl(ctx
) ? GL_RGB
: 0;
1414 return _mesa_is_desktop_gl(ctx
) ? GL_RGBA
: 0;
1416 case GL_SRGB8_ALPHA8_EXT
:
1417 return _mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
1418 case GL_STENCIL_INDEX
:
1419 case GL_STENCIL_INDEX1_EXT
:
1420 case GL_STENCIL_INDEX4_EXT
:
1421 case GL_STENCIL_INDEX16_EXT
:
1422 /* There are extensions for GL_STENCIL_INDEX1 and GL_STENCIL_INDEX4 in
1423 * OpenGL ES, but Mesa does not currently support them.
1425 return _mesa_is_desktop_gl(ctx
) ? GL_STENCIL_INDEX
: 0;
1426 case GL_STENCIL_INDEX8_EXT
:
1427 return GL_STENCIL_INDEX
;
1428 case GL_DEPTH_COMPONENT
:
1429 case GL_DEPTH_COMPONENT32
:
1430 return _mesa_is_desktop_gl(ctx
) ? GL_DEPTH_COMPONENT
: 0;
1431 case GL_DEPTH_COMPONENT16
:
1432 case GL_DEPTH_COMPONENT24
:
1433 return GL_DEPTH_COMPONENT
;
1434 case GL_DEPTH_STENCIL_EXT
:
1435 return _mesa_is_desktop_gl(ctx
)
1436 && ctx
->Extensions
.EXT_packed_depth_stencil
1437 ? GL_DEPTH_STENCIL_EXT
: 0;
1438 case GL_DEPTH24_STENCIL8_EXT
:
1439 return ctx
->Extensions
.EXT_packed_depth_stencil
1440 ? GL_DEPTH_STENCIL_EXT
: 0;
1441 case GL_DEPTH_COMPONENT32F
:
1442 return ctx
->Version
>= 30
1443 || (ctx
->API
== API_OPENGL_COMPAT
&& ctx
->Extensions
.ARB_depth_buffer_float
)
1444 ? GL_DEPTH_COMPONENT
: 0;
1445 case GL_DEPTH32F_STENCIL8
:
1446 return ctx
->Version
>= 30
1447 || (ctx
->API
== API_OPENGL_COMPAT
&& ctx
->Extensions
.ARB_depth_buffer_float
)
1448 ? GL_DEPTH_STENCIL
: 0;
1451 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_rg
1454 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
1458 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_rg
1461 return ctx
->API
!= API_OPENGLES
&& ctx
->Extensions
.ARB_texture_rg
1463 /* signed normalized texture formats */
1467 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1472 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1476 case GL_RGB16_SNORM
:
1477 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1480 case GL_RGBA8_SNORM
:
1481 case GL_RGBA16_SNORM
:
1482 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_snorm
1484 case GL_ALPHA_SNORM
:
1485 case GL_ALPHA8_SNORM
:
1486 case GL_ALPHA16_SNORM
:
1487 return ctx
->API
== API_OPENGL_COMPAT
&&
1488 ctx
->Extensions
.EXT_texture_snorm
&&
1489 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1492 return ((_mesa_is_desktop_gl(ctx
) &&
1493 ctx
->Extensions
.ARB_texture_rg
&&
1494 ctx
->Extensions
.ARB_texture_float
) ||
1495 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1499 return ((_mesa_is_desktop_gl(ctx
) &&
1500 ctx
->Extensions
.ARB_texture_rg
&&
1501 ctx
->Extensions
.ARB_texture_float
) ||
1502 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1506 return (_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_texture_float
)
1510 return ((_mesa_is_desktop_gl(ctx
) &&
1511 ctx
->Extensions
.ARB_texture_float
) ||
1512 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1514 case GL_ALPHA16F_ARB
:
1515 case GL_ALPHA32F_ARB
:
1516 return ctx
->API
== API_OPENGL_COMPAT
&&
1517 ctx
->Extensions
.ARB_texture_float
&&
1518 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1519 case GL_LUMINANCE16F_ARB
:
1520 case GL_LUMINANCE32F_ARB
:
1521 return ctx
->API
== API_OPENGL_COMPAT
&&
1522 ctx
->Extensions
.ARB_texture_float
&&
1523 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
1524 case GL_LUMINANCE_ALPHA16F_ARB
:
1525 case GL_LUMINANCE_ALPHA32F_ARB
:
1526 return ctx
->API
== API_OPENGL_COMPAT
&&
1527 ctx
->Extensions
.ARB_texture_float
&&
1528 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
1529 case GL_INTENSITY16F_ARB
:
1530 case GL_INTENSITY32F_ARB
:
1531 return ctx
->API
== API_OPENGL_COMPAT
&&
1532 ctx
->Extensions
.ARB_texture_float
&&
1533 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
1535 return (_mesa_is_desktop_gl(ctx
)
1536 && ctx
->Extensions
.EXT_texture_shared_exponent
)
1538 case GL_R11F_G11F_B10F
:
1539 return ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_packed_float
) ||
1540 _mesa_is_gles3(ctx
) /* EXT_color_buffer_float */ )
1543 case GL_RGBA8UI_EXT
:
1544 case GL_RGBA16UI_EXT
:
1545 case GL_RGBA32UI_EXT
:
1547 case GL_RGBA16I_EXT
:
1548 case GL_RGBA32I_EXT
:
1549 return ctx
->Version
>= 30
1550 || (_mesa_is_desktop_gl(ctx
) &&
1551 ctx
->Extensions
.EXT_texture_integer
) ? GL_RGBA
: 0;
1554 case GL_RGB16UI_EXT
:
1555 case GL_RGB32UI_EXT
:
1559 return _mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.EXT_texture_integer
1567 return ctx
->Version
>= 30
1568 || (_mesa_is_desktop_gl(ctx
) &&
1569 ctx
->Extensions
.ARB_texture_rg
&&
1570 ctx
->Extensions
.EXT_texture_integer
) ? GL_RED
: 0;
1578 return ctx
->Version
>= 30
1579 || (_mesa_is_desktop_gl(ctx
) &&
1580 ctx
->Extensions
.ARB_texture_rg
&&
1581 ctx
->Extensions
.EXT_texture_integer
) ? GL_RG
: 0;
1583 case GL_INTENSITY8I_EXT
:
1584 case GL_INTENSITY8UI_EXT
:
1585 case GL_INTENSITY16I_EXT
:
1586 case GL_INTENSITY16UI_EXT
:
1587 case GL_INTENSITY32I_EXT
:
1588 case GL_INTENSITY32UI_EXT
:
1589 return ctx
->API
== API_OPENGL_COMPAT
&&
1590 ctx
->Extensions
.EXT_texture_integer
&&
1591 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
1593 case GL_LUMINANCE8I_EXT
:
1594 case GL_LUMINANCE8UI_EXT
:
1595 case GL_LUMINANCE16I_EXT
:
1596 case GL_LUMINANCE16UI_EXT
:
1597 case GL_LUMINANCE32I_EXT
:
1598 case GL_LUMINANCE32UI_EXT
:
1599 return ctx
->API
== API_OPENGL_COMPAT
&&
1600 ctx
->Extensions
.EXT_texture_integer
&&
1601 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
1603 case GL_LUMINANCE_ALPHA8I_EXT
:
1604 case GL_LUMINANCE_ALPHA8UI_EXT
:
1605 case GL_LUMINANCE_ALPHA16I_EXT
:
1606 case GL_LUMINANCE_ALPHA16UI_EXT
:
1607 case GL_LUMINANCE_ALPHA32I_EXT
:
1608 case GL_LUMINANCE_ALPHA32UI_EXT
:
1609 return ctx
->API
== API_OPENGL_COMPAT
&&
1610 ctx
->Extensions
.EXT_texture_integer
&&
1611 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
1613 case GL_ALPHA8I_EXT
:
1614 case GL_ALPHA8UI_EXT
:
1615 case GL_ALPHA16I_EXT
:
1616 case GL_ALPHA16UI_EXT
:
1617 case GL_ALPHA32I_EXT
:
1618 case GL_ALPHA32UI_EXT
:
1619 return ctx
->API
== API_OPENGL_COMPAT
&&
1620 ctx
->Extensions
.EXT_texture_integer
&&
1621 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1624 return (_mesa_is_desktop_gl(ctx
) &&
1625 ctx
->Extensions
.ARB_texture_rgb10_a2ui
)
1626 || _mesa_is_gles3(ctx
) ? GL_RGBA
: 0;
1629 return _mesa_is_gles(ctx
) || ctx
->Extensions
.ARB_ES2_compatibility
1638 * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk().
1641 invalidate_rb(GLuint key
, void *data
, void *userData
)
1643 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
1644 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) userData
;
1646 /* If this is a user-created FBO */
1647 if (_mesa_is_user_fbo(fb
)) {
1649 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1650 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
1651 if (att
->Type
== GL_RENDERBUFFER
&&
1652 att
->Renderbuffer
== rb
) {
1653 /* Mark fb status as indeterminate to force re-validation */
1662 /** sentinal value, see below */
1663 #define NO_SAMPLES 1000
1667 * Helper function used by _mesa_RenderbufferStorage() and
1668 * _mesa_RenderbufferStorageMultisample().
1669 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorage().
1672 renderbuffer_storage(GLenum target
, GLenum internalFormat
,
1673 GLsizei width
, GLsizei height
, GLsizei samples
)
1675 const char *func
= samples
== NO_SAMPLES
?
1676 "glRenderbufferStorage" : "glRenderbufferStorageMultisample";
1677 struct gl_renderbuffer
*rb
;
1679 GLenum sample_count_error
;
1680 GET_CURRENT_CONTEXT(ctx
);
1682 if (MESA_VERBOSE
& VERBOSE_API
) {
1683 if (samples
== NO_SAMPLES
)
1684 _mesa_debug(ctx
, "%s(%s, %s, %d, %d)\n",
1686 _mesa_lookup_enum_by_nr(target
),
1687 _mesa_lookup_enum_by_nr(internalFormat
),
1690 _mesa_debug(ctx
, "%s(%s, %s, %d, %d, %d)\n",
1692 _mesa_lookup_enum_by_nr(target
),
1693 _mesa_lookup_enum_by_nr(internalFormat
),
1694 width
, height
, samples
);
1697 if (target
!= GL_RENDERBUFFER_EXT
) {
1698 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
1702 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
1703 if (baseFormat
== 0) {
1704 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalFormat=%s)",
1705 func
, _mesa_lookup_enum_by_nr(internalFormat
));
1709 if (width
< 0 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
1710 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(width)", func
);
1714 if (height
< 0 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
1715 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(height)", func
);
1719 if (samples
== NO_SAMPLES
) {
1720 /* NumSamples == 0 indicates non-multisampling */
1724 /* check the sample count;
1725 * note: driver may choose to use more samples than what's requested
1727 sample_count_error
= _mesa_check_sample_count(ctx
, target
,
1728 internalFormat
, samples
);
1729 if (sample_count_error
!= GL_NO_ERROR
) {
1730 _mesa_error(ctx
, sample_count_error
, "%s(samples)", func
);
1735 rb
= ctx
->CurrentRenderbuffer
;
1737 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", func
);
1741 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1743 if (rb
->InternalFormat
== internalFormat
&&
1744 rb
->Width
== (GLuint
) width
&&
1745 rb
->Height
== (GLuint
) height
&&
1746 rb
->NumSamples
== samples
) {
1747 /* no change in allocation needed */
1751 /* These MUST get set by the AllocStorage func */
1752 rb
->Format
= MESA_FORMAT_NONE
;
1753 rb
->NumSamples
= samples
;
1755 /* Now allocate the storage */
1756 ASSERT(rb
->AllocStorage
);
1757 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
1758 /* No error - check/set fields now */
1759 /* If rb->Format == MESA_FORMAT_NONE, the format is unsupported. */
1760 assert(rb
->Width
== (GLuint
) width
);
1761 assert(rb
->Height
== (GLuint
) height
);
1762 rb
->InternalFormat
= internalFormat
;
1763 rb
->_BaseFormat
= baseFormat
;
1764 assert(rb
->_BaseFormat
!= 0);
1767 /* Probably ran out of memory - clear the fields */
1770 rb
->Format
= MESA_FORMAT_NONE
;
1771 rb
->InternalFormat
= GL_NONE
;
1772 rb
->_BaseFormat
= GL_NONE
;
1776 /* Invalidate the framebuffers the renderbuffer is attached in. */
1777 if (rb
->AttachedAnytime
) {
1778 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, invalidate_rb
, rb
);
1784 _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target
, GLeglImageOES image
)
1786 struct gl_renderbuffer
*rb
;
1787 GET_CURRENT_CONTEXT(ctx
);
1789 if (!ctx
->Extensions
.OES_EGL_image
) {
1790 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1791 "glEGLImageTargetRenderbufferStorageOES(unsupported)");
1795 if (target
!= GL_RENDERBUFFER
) {
1796 _mesa_error(ctx
, GL_INVALID_ENUM
,
1797 "EGLImageTargetRenderbufferStorageOES");
1801 rb
= ctx
->CurrentRenderbuffer
;
1803 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1804 "EGLImageTargetRenderbufferStorageOES");
1808 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1810 ctx
->Driver
.EGLImageTargetRenderbufferStorage(ctx
, rb
, image
);
1815 * Helper function for _mesa_GetRenderbufferParameteriv() and
1816 * _mesa_GetFramebufferAttachmentParameteriv()
1817 * We have to be careful to respect the base format. For example, if a
1818 * renderbuffer/texture was created with internalFormat=GL_RGB but the
1819 * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
1820 * we need to return zero.
1823 get_component_bits(GLenum pname
, GLenum baseFormat
, gl_format format
)
1825 if (_mesa_base_format_has_channel(baseFormat
, pname
))
1826 return _mesa_get_format_bits(format
, pname
);
1834 _mesa_RenderbufferStorage(GLenum target
, GLenum internalFormat
,
1835 GLsizei width
, GLsizei height
)
1837 /* GL_ARB_fbo says calling this function is equivalent to calling
1838 * glRenderbufferStorageMultisample() with samples=0. We pass in
1839 * a token value here just for error reporting purposes.
1841 renderbuffer_storage(target
, internalFormat
, width
, height
, NO_SAMPLES
);
1846 _mesa_RenderbufferStorageMultisample(GLenum target
, GLsizei samples
,
1847 GLenum internalFormat
,
1848 GLsizei width
, GLsizei height
)
1850 renderbuffer_storage(target
, internalFormat
, width
, height
, samples
);
1855 * OpenGL ES version of glRenderBufferStorage.
1858 _es_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
1859 GLsizei width
, GLsizei height
)
1861 switch (internalFormat
) {
1863 /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
1864 /* choose a closest format */
1865 internalFormat
= GL_RGB5
;
1871 renderbuffer_storage(target
, internalFormat
, width
, height
, 0);
1876 _mesa_GetRenderbufferParameteriv(GLenum target
, GLenum pname
, GLint
*params
)
1878 struct gl_renderbuffer
*rb
;
1879 GET_CURRENT_CONTEXT(ctx
);
1881 if (target
!= GL_RENDERBUFFER_EXT
) {
1882 _mesa_error(ctx
, GL_INVALID_ENUM
,
1883 "glGetRenderbufferParameterivEXT(target)");
1887 rb
= ctx
->CurrentRenderbuffer
;
1889 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1890 "glGetRenderbufferParameterivEXT");
1894 /* No need to flush here since we're just quering state which is
1895 * not effected by rendering.
1899 case GL_RENDERBUFFER_WIDTH_EXT
:
1900 *params
= rb
->Width
;
1902 case GL_RENDERBUFFER_HEIGHT_EXT
:
1903 *params
= rb
->Height
;
1905 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
1906 *params
= rb
->InternalFormat
;
1908 case GL_RENDERBUFFER_RED_SIZE_EXT
:
1909 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
1910 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
1911 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
1912 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
1913 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
1914 *params
= get_component_bits(pname
, rb
->_BaseFormat
, rb
->Format
);
1916 case GL_RENDERBUFFER_SAMPLES
:
1917 if ((_mesa_is_desktop_gl(ctx
) && ctx
->Extensions
.ARB_framebuffer_object
)
1918 || _mesa_is_gles3(ctx
)) {
1919 *params
= rb
->NumSamples
;
1924 _mesa_error(ctx
, GL_INVALID_ENUM
,
1925 "glGetRenderbufferParameterivEXT(target)");
1931 GLboolean GLAPIENTRY
1932 _mesa_IsFramebuffer(GLuint framebuffer
)
1934 GET_CURRENT_CONTEXT(ctx
);
1935 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1937 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
1938 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
1946 * Check if any of the attachments of the given framebuffer are textures
1947 * (render to texture). Call ctx->Driver.RenderTexture() for such
1951 check_begin_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
1954 ASSERT(ctx
->Driver
.RenderTexture
);
1956 if (_mesa_is_winsys_fbo(fb
))
1957 return; /* can't render to texture with winsys framebuffers */
1959 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1960 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
1961 if (att
->Texture
&& att
->Renderbuffer
->TexImage
1962 && driver_RenderTexture_is_safe(att
)) {
1963 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
1970 * Examine all the framebuffer's attachments to see if any are textures.
1971 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
1972 * notify the device driver that the texture image may have changed.
1975 check_end_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
1977 if (_mesa_is_winsys_fbo(fb
))
1978 return; /* can't render to texture with winsys framebuffers */
1980 if (ctx
->Driver
.FinishRenderTexture
) {
1982 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1983 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
1984 struct gl_renderbuffer
*rb
= att
->Renderbuffer
;
1985 if (rb
&& rb
->NeedsFinishRenderTexture
) {
1986 ctx
->Driver
.FinishRenderTexture(ctx
, rb
);
1994 bind_framebuffer(GLenum target
, GLuint framebuffer
, bool allow_user_names
)
1996 struct gl_framebuffer
*newDrawFb
, *newReadFb
;
1997 struct gl_framebuffer
*oldDrawFb
, *oldReadFb
;
1998 GLboolean bindReadBuf
, bindDrawBuf
;
1999 GET_CURRENT_CONTEXT(ctx
);
2002 if (ctx
->Extensions
.ARB_framebuffer_object
) {
2003 ASSERT(ctx
->Extensions
.EXT_framebuffer_blit
);
2008 case GL_DRAW_FRAMEBUFFER_EXT
:
2009 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
2010 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
2013 bindDrawBuf
= GL_TRUE
;
2014 bindReadBuf
= GL_FALSE
;
2016 case GL_READ_FRAMEBUFFER_EXT
:
2017 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
2018 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
2021 bindDrawBuf
= GL_FALSE
;
2022 bindReadBuf
= GL_TRUE
;
2024 case GL_FRAMEBUFFER_EXT
:
2025 bindDrawBuf
= GL_TRUE
;
2026 bindReadBuf
= GL_TRUE
;
2029 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
2034 /* Binding a user-created framebuffer object */
2035 newDrawFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
2036 if (newDrawFb
== &DummyFramebuffer
) {
2037 /* ID was reserved, but no real framebuffer object made yet */
2040 else if (!newDrawFb
&& !allow_user_names
) {
2041 /* All FBO IDs must be Gen'd */
2042 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindFramebuffer(buffer)");
2047 /* create new framebuffer object */
2048 newDrawFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
2050 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
2053 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newDrawFb
);
2055 newReadFb
= newDrawFb
;
2058 /* Binding the window system framebuffer (which was originally set
2059 * with MakeCurrent).
2061 newDrawFb
= ctx
->WinSysDrawBuffer
;
2062 newReadFb
= ctx
->WinSysReadBuffer
;
2066 ASSERT(newDrawFb
!= &DummyFramebuffer
);
2068 /* save pointers to current/old framebuffers */
2069 oldDrawFb
= ctx
->DrawBuffer
;
2070 oldReadFb
= ctx
->ReadBuffer
;
2072 /* check if really changing bindings */
2073 if (oldDrawFb
== newDrawFb
)
2074 bindDrawBuf
= GL_FALSE
;
2075 if (oldReadFb
== newReadFb
)
2076 bindReadBuf
= GL_FALSE
;
2079 * OK, now bind the new Draw/Read framebuffers, if they're changing.
2081 * We also check if we're beginning and/or ending render-to-texture.
2082 * When a framebuffer with texture attachments is unbound, call
2083 * ctx->Driver.FinishRenderTexture().
2084 * When a framebuffer with texture attachments is bound, call
2085 * ctx->Driver.RenderTexture().
2087 * Note that if the ReadBuffer has texture attachments we don't consider
2088 * that a render-to-texture case.
2091 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2093 /* check if old readbuffer was render-to-texture */
2094 check_end_texture_render(ctx
, oldReadFb
);
2096 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newReadFb
);
2100 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2102 /* check if old framebuffer had any texture attachments */
2104 check_end_texture_render(ctx
, oldDrawFb
);
2106 /* check if newly bound framebuffer has any texture attachments */
2107 check_begin_texture_render(ctx
, newDrawFb
);
2109 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newDrawFb
);
2112 if ((bindDrawBuf
|| bindReadBuf
) && ctx
->Driver
.BindFramebuffer
) {
2113 ctx
->Driver
.BindFramebuffer(ctx
, target
, newDrawFb
, newReadFb
);
2118 _mesa_BindFramebuffer(GLenum target
, GLuint framebuffer
)
2120 GET_CURRENT_CONTEXT(ctx
);
2122 /* OpenGL ES glBindFramebuffer and glBindFramebufferOES use this same entry
2123 * point, but they allow the use of user-generated names.
2125 bind_framebuffer(target
, framebuffer
, _mesa_is_gles(ctx
));
2129 _mesa_BindFramebufferEXT(GLenum target
, GLuint framebuffer
)
2131 /* This function should not be in the dispatch table for core profile /
2132 * OpenGL 3.1, so execution should never get here in those cases -- no
2133 * need for an explicit test.
2135 bind_framebuffer(target
, framebuffer
, true);
2139 _mesa_DeleteFramebuffers(GLsizei n
, const GLuint
*framebuffers
)
2142 GET_CURRENT_CONTEXT(ctx
);
2144 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2146 for (i
= 0; i
< n
; i
++) {
2147 if (framebuffers
[i
] > 0) {
2148 struct gl_framebuffer
*fb
;
2149 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
2151 ASSERT(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
2153 /* check if deleting currently bound framebuffer object */
2154 if (ctx
->Extensions
.EXT_framebuffer_blit
) {
2155 /* separate draw/read binding points */
2156 if (fb
== ctx
->DrawBuffer
) {
2158 ASSERT(fb
->RefCount
>= 2);
2159 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER_EXT
, 0);
2161 if (fb
== ctx
->ReadBuffer
) {
2163 ASSERT(fb
->RefCount
>= 2);
2164 _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER_EXT
, 0);
2168 /* only one binding point for read/draw buffers */
2169 if (fb
== ctx
->DrawBuffer
|| fb
== ctx
->ReadBuffer
) {
2171 ASSERT(fb
->RefCount
>= 2);
2172 _mesa_BindFramebuffer(GL_FRAMEBUFFER_EXT
, 0);
2176 /* remove from hash table immediately, to free the ID */
2177 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
2179 if (fb
!= &DummyFramebuffer
) {
2180 /* But the object will not be freed until it's no longer
2181 * bound in any context.
2183 _mesa_reference_framebuffer(&fb
, NULL
);
2192 _mesa_GenFramebuffers(GLsizei n
, GLuint
*framebuffers
)
2194 GET_CURRENT_CONTEXT(ctx
);
2199 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenFramebuffersEXT(n)");
2206 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
2208 for (i
= 0; i
< n
; i
++) {
2209 GLuint name
= first
+ i
;
2210 framebuffers
[i
] = name
;
2211 /* insert dummy placeholder into hash table */
2212 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
2213 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, name
, &DummyFramebuffer
);
2214 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
2221 _mesa_CheckFramebufferStatus(GLenum target
)
2223 struct gl_framebuffer
*buffer
;
2224 GET_CURRENT_CONTEXT(ctx
);
2226 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
2228 if (MESA_VERBOSE
& VERBOSE_API
)
2229 _mesa_debug(ctx
, "glCheckFramebufferStatus(%s)\n",
2230 _mesa_lookup_enum_by_nr(target
));
2232 buffer
= get_framebuffer_target(ctx
, target
);
2234 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
2238 if (_mesa_is_winsys_fbo(buffer
)) {
2239 /* EGL_KHR_surfaceless_context allows the winsys FBO to be incomplete. */
2240 if (buffer
!= &IncompleteFramebuffer
) {
2241 return GL_FRAMEBUFFER_COMPLETE_EXT
;
2243 return GL_FRAMEBUFFER_UNDEFINED
;
2247 /* No need to flush here */
2249 if (buffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE
) {
2250 _mesa_test_framebuffer_completeness(ctx
, buffer
);
2253 return buffer
->_Status
;
2258 * Replicate the src attachment point. Used by framebuffer_texture() when
2259 * the same texture is attached at GL_DEPTH_ATTACHMENT and
2260 * GL_STENCIL_ATTACHMENT.
2263 reuse_framebuffer_texture_attachment(struct gl_framebuffer
*fb
,
2264 gl_buffer_index dst
,
2265 gl_buffer_index src
)
2267 struct gl_renderbuffer_attachment
*dst_att
= &fb
->Attachment
[dst
];
2268 struct gl_renderbuffer_attachment
*src_att
= &fb
->Attachment
[src
];
2270 assert(src_att
->Texture
!= NULL
);
2271 assert(src_att
->Renderbuffer
!= NULL
);
2273 _mesa_reference_texobj(&dst_att
->Texture
, src_att
->Texture
);
2274 _mesa_reference_renderbuffer(&dst_att
->Renderbuffer
, src_att
->Renderbuffer
);
2275 dst_att
->Type
= src_att
->Type
;
2276 dst_att
->Complete
= src_att
->Complete
;
2277 dst_att
->TextureLevel
= src_att
->TextureLevel
;
2278 dst_att
->Zoffset
= src_att
->Zoffset
;
2283 * Common code called by glFramebufferTexture1D/2D/3DEXT() and
2284 * glFramebufferTextureLayerEXT().
2285 * Note: glFramebufferTextureLayerEXT() has no textarget parameter so we'll
2286 * get textarget=0 in that case.
2289 framebuffer_texture(struct gl_context
*ctx
, const char *caller
, GLenum target
,
2290 GLenum attachment
, GLenum textarget
, GLuint texture
,
2291 GLint level
, GLint zoffset
, GLboolean layered
)
2293 struct gl_renderbuffer_attachment
*att
;
2294 struct gl_texture_object
*texObj
= NULL
;
2295 struct gl_framebuffer
*fb
;
2296 GLenum maxLevelsTarget
;
2298 fb
= get_framebuffer_target(ctx
, target
);
2300 _mesa_error(ctx
, GL_INVALID_ENUM
,
2301 "glFramebufferTexture%sEXT(target=0x%x)", caller
, target
);
2305 /* check framebuffer binding */
2306 if (_mesa_is_winsys_fbo(fb
)) {
2307 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2308 "glFramebufferTexture%sEXT", caller
);
2312 /* The textarget, level, and zoffset parameters are only validated if
2313 * texture is non-zero.
2316 GLboolean err
= GL_TRUE
;
2318 texObj
= _mesa_lookup_texture(ctx
, texture
);
2319 if (texObj
!= NULL
) {
2320 if (textarget
== 0) {
2321 /* If textarget == 0 it means we're being called by
2322 * glFramebufferTextureLayer() and textarget is not used.
2323 * The only legal texture types for that function are 3D and
2324 * 1D/2D arrays textures.
2326 err
= (texObj
->Target
!= GL_TEXTURE_3D
) &&
2327 (texObj
->Target
!= GL_TEXTURE_1D_ARRAY_EXT
) &&
2328 (texObj
->Target
!= GL_TEXTURE_2D_ARRAY_EXT
) &&
2329 (texObj
->Target
!= GL_TEXTURE_CUBE_MAP_ARRAY
) &&
2330 (texObj
->Target
!= GL_TEXTURE_2D_MULTISAMPLE_ARRAY
);
2333 /* Make sure textarget is consistent with the texture's type */
2334 err
= (texObj
->Target
== GL_TEXTURE_CUBE_MAP
)
2335 ? !_mesa_is_cube_face(textarget
)
2336 : (texObj
->Target
!= textarget
);
2340 /* can't render to a non-existant texture */
2341 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2342 "glFramebufferTexture%sEXT(non existant texture)",
2348 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2349 "glFramebufferTexture%sEXT(texture target mismatch)",
2354 if (texObj
->Target
== GL_TEXTURE_3D
) {
2355 const GLint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
2356 if (zoffset
< 0 || zoffset
>= maxSize
) {
2357 _mesa_error(ctx
, GL_INVALID_VALUE
,
2358 "glFramebufferTexture%sEXT(zoffset)", caller
);
2362 else if ((texObj
->Target
== GL_TEXTURE_1D_ARRAY_EXT
) ||
2363 (texObj
->Target
== GL_TEXTURE_2D_ARRAY_EXT
) ||
2364 (texObj
->Target
== GL_TEXTURE_CUBE_MAP_ARRAY
) ||
2365 (texObj
->Target
== GL_TEXTURE_2D_MULTISAMPLE_ARRAY
)) {
2367 zoffset
>= (GLint
) ctx
->Const
.MaxArrayTextureLayers
) {
2368 _mesa_error(ctx
, GL_INVALID_VALUE
,
2369 "glFramebufferTexture%sEXT(layer)", caller
);
2374 maxLevelsTarget
= textarget
? textarget
: texObj
->Target
;
2376 (level
>= _mesa_max_texture_levels(ctx
, maxLevelsTarget
))) {
2377 _mesa_error(ctx
, GL_INVALID_VALUE
,
2378 "glFramebufferTexture%sEXT(level)", caller
);
2383 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
2385 _mesa_error(ctx
, GL_INVALID_ENUM
,
2386 "glFramebufferTexture%sEXT(attachment)", caller
);
2390 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2392 _glthread_LOCK_MUTEX(fb
->Mutex
);
2394 if (attachment
== GL_DEPTH_ATTACHMENT
&&
2395 texObj
== fb
->Attachment
[BUFFER_STENCIL
].Texture
&&
2396 level
== fb
->Attachment
[BUFFER_STENCIL
].TextureLevel
&&
2397 _mesa_tex_target_to_face(textarget
) ==
2398 fb
->Attachment
[BUFFER_STENCIL
].CubeMapFace
&&
2399 zoffset
== fb
->Attachment
[BUFFER_STENCIL
].Zoffset
) {
2400 /* The texture object is already attached to the stencil attachment
2401 * point. Don't create a new renderbuffer; just reuse the stencil
2402 * attachment's. This is required to prevent a GL error in
2403 * glGetFramebufferAttachmentParameteriv(GL_DEPTH_STENCIL).
2405 reuse_framebuffer_texture_attachment(fb
, BUFFER_DEPTH
,
2407 } else if (attachment
== GL_STENCIL_ATTACHMENT
&&
2408 texObj
== fb
->Attachment
[BUFFER_DEPTH
].Texture
&&
2409 level
== fb
->Attachment
[BUFFER_DEPTH
].TextureLevel
&&
2410 _mesa_tex_target_to_face(textarget
) ==
2411 fb
->Attachment
[BUFFER_DEPTH
].CubeMapFace
&&
2412 zoffset
== fb
->Attachment
[BUFFER_DEPTH
].Zoffset
) {
2413 /* As above, but with depth and stencil transposed. */
2414 reuse_framebuffer_texture_attachment(fb
, BUFFER_STENCIL
,
2417 _mesa_set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
2418 level
, zoffset
, layered
);
2419 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
2420 /* Above we created a new renderbuffer and attached it to the
2421 * depth attachment point. Now attach it to the stencil attachment
2424 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
2425 reuse_framebuffer_texture_attachment(fb
,BUFFER_STENCIL
,
2430 /* Set the render-to-texture flag. We'll check this flag in
2431 * glTexImage() and friends to determine if we need to revalidate
2432 * any FBOs that might be rendering into this texture.
2433 * This flag never gets cleared since it's non-trivial to determine
2434 * when all FBOs might be done rendering to this texture. That's OK
2435 * though since it's uncommon to render to a texture then repeatedly
2436 * call glTexImage() to change images in the texture.
2438 texObj
->_RenderToTexture
= GL_TRUE
;
2441 _mesa_remove_attachment(ctx
, att
);
2442 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
2443 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
2444 _mesa_remove_attachment(ctx
, &fb
->Attachment
[BUFFER_STENCIL
]);
2448 invalidate_framebuffer(fb
);
2450 _glthread_UNLOCK_MUTEX(fb
->Mutex
);
2456 _mesa_FramebufferTexture1D(GLenum target
, GLenum attachment
,
2457 GLenum textarget
, GLuint texture
, GLint level
)
2459 GET_CURRENT_CONTEXT(ctx
);
2464 switch (textarget
) {
2468 case GL_TEXTURE_1D_ARRAY
:
2469 error
= !ctx
->Extensions
.EXT_texture_array
;
2476 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2477 "glFramebufferTexture1DEXT(textarget=%s)",
2478 _mesa_lookup_enum_by_nr(textarget
));
2483 framebuffer_texture(ctx
, "1D", target
, attachment
, textarget
, texture
,
2484 level
, 0, GL_FALSE
);
2489 _mesa_FramebufferTexture2D(GLenum target
, GLenum attachment
,
2490 GLenum textarget
, GLuint texture
, GLint level
)
2492 GET_CURRENT_CONTEXT(ctx
);
2497 switch (textarget
) {
2501 case GL_TEXTURE_RECTANGLE
:
2502 error
= _mesa_is_gles(ctx
)
2503 || !ctx
->Extensions
.NV_texture_rectangle
;
2505 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
2506 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
2507 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
2508 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
2509 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
2510 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
2511 error
= !ctx
->Extensions
.ARB_texture_cube_map
;
2513 case GL_TEXTURE_2D_ARRAY
:
2514 error
= (_mesa_is_gles(ctx
) && ctx
->Version
< 30)
2515 || !ctx
->Extensions
.EXT_texture_array
;
2517 case GL_TEXTURE_2D_MULTISAMPLE
:
2518 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
2519 error
= _mesa_is_gles(ctx
)
2520 || !ctx
->Extensions
.ARB_texture_multisample
;
2527 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2528 "glFramebufferTexture2DEXT(textarget=%s)",
2529 _mesa_lookup_enum_by_nr(textarget
));
2534 framebuffer_texture(ctx
, "2D", target
, attachment
, textarget
, texture
,
2535 level
, 0, GL_FALSE
);
2540 _mesa_FramebufferTexture3D(GLenum target
, GLenum attachment
,
2541 GLenum textarget
, GLuint texture
,
2542 GLint level
, GLint zoffset
)
2544 GET_CURRENT_CONTEXT(ctx
);
2546 if ((texture
!= 0) && (textarget
!= GL_TEXTURE_3D
)) {
2547 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2548 "glFramebufferTexture3DEXT(textarget)");
2552 framebuffer_texture(ctx
, "3D", target
, attachment
, textarget
, texture
,
2553 level
, zoffset
, GL_FALSE
);
2558 _mesa_FramebufferTextureLayer(GLenum target
, GLenum attachment
,
2559 GLuint texture
, GLint level
, GLint layer
)
2561 GET_CURRENT_CONTEXT(ctx
);
2563 framebuffer_texture(ctx
, "Layer", target
, attachment
, 0, texture
,
2564 level
, layer
, GL_FALSE
);
2569 _mesa_FramebufferTexture(GLenum target
, GLenum attachment
,
2570 GLuint texture
, GLint level
)
2572 GET_CURRENT_CONTEXT(ctx
);
2574 if (_mesa_has_geometry_shaders(ctx
)) {
2575 framebuffer_texture(ctx
, "Layer", target
, attachment
, 0, texture
,
2578 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2579 "unsupported function (glFramebufferTexture) called");
2585 _mesa_FramebufferRenderbuffer(GLenum target
, GLenum attachment
,
2586 GLenum renderbufferTarget
,
2587 GLuint renderbuffer
)
2589 struct gl_renderbuffer_attachment
*att
;
2590 struct gl_framebuffer
*fb
;
2591 struct gl_renderbuffer
*rb
;
2592 GET_CURRENT_CONTEXT(ctx
);
2594 fb
= get_framebuffer_target(ctx
, target
);
2596 _mesa_error(ctx
, GL_INVALID_ENUM
, "glFramebufferRenderbufferEXT(target)");
2600 if (renderbufferTarget
!= GL_RENDERBUFFER_EXT
) {
2601 _mesa_error(ctx
, GL_INVALID_ENUM
,
2602 "glFramebufferRenderbufferEXT(renderbufferTarget)");
2606 if (_mesa_is_winsys_fbo(fb
)) {
2607 /* Can't attach new renderbuffers to a window system framebuffer */
2608 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glFramebufferRenderbufferEXT");
2612 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
2614 _mesa_error(ctx
, GL_INVALID_ENUM
,
2615 "glFramebufferRenderbufferEXT(invalid attachment %s)",
2616 _mesa_lookup_enum_by_nr(attachment
));
2621 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2623 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2624 "glFramebufferRenderbufferEXT(non-existant"
2625 " renderbuffer %u)", renderbuffer
);
2628 else if (rb
== &DummyRenderbuffer
) {
2629 /* This is what NVIDIA does */
2630 _mesa_error(ctx
, GL_INVALID_VALUE
,
2631 "glFramebufferRenderbufferEXT(renderbuffer %u)",
2637 /* remove renderbuffer attachment */
2641 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
&&
2642 rb
&& rb
->Format
!= MESA_FORMAT_NONE
) {
2643 /* make sure the renderbuffer is a depth/stencil format */
2644 const GLenum baseFormat
= _mesa_get_format_base_format(rb
->Format
);
2645 if (baseFormat
!= GL_DEPTH_STENCIL
) {
2646 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2647 "glFramebufferRenderbufferEXT(renderbuffer"
2648 " is not DEPTH_STENCIL format)");
2654 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2656 assert(ctx
->Driver
.FramebufferRenderbuffer
);
2657 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
2659 /* Some subsequent GL commands may depend on the framebuffer's visual
2660 * after the binding is updated. Update visual info now.
2662 _mesa_update_framebuffer_visual(ctx
, fb
);
2667 _mesa_GetFramebufferAttachmentParameteriv(GLenum target
, GLenum attachment
,
2668 GLenum pname
, GLint
*params
)
2670 const struct gl_renderbuffer_attachment
*att
;
2671 struct gl_framebuffer
*buffer
;
2673 GET_CURRENT_CONTEXT(ctx
);
2675 /* The error differs in GL and GLES. */
2676 err
= _mesa_is_desktop_gl(ctx
) ? GL_INVALID_OPERATION
: GL_INVALID_ENUM
;
2678 buffer
= get_framebuffer_target(ctx
, target
);
2680 _mesa_error(ctx
, GL_INVALID_ENUM
,
2681 "glGetFramebufferAttachmentParameterivEXT(target)");
2685 if (_mesa_is_winsys_fbo(buffer
)) {
2686 /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
2689 * "If the framebuffer currently bound to target is zero, then
2690 * INVALID_OPERATION is generated."
2692 * The EXT_framebuffer_object spec has the same wording, and the
2693 * OES_framebuffer_object spec refers to the EXT_framebuffer_object
2696 if ((!_mesa_is_desktop_gl(ctx
) || !ctx
->Extensions
.ARB_framebuffer_object
)
2697 && !_mesa_is_gles3(ctx
)) {
2698 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2699 "glGetFramebufferAttachmentParameteriv(bound FBO = 0)");
2703 if (_mesa_is_gles3(ctx
) && attachment
!= GL_BACK
&&
2704 attachment
!= GL_DEPTH
&& attachment
!= GL_STENCIL
) {
2705 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2706 "glGetFramebufferAttachmentParameteriv(attachment)");
2709 /* the default / window-system FBO */
2710 att
= _mesa_get_fb0_attachment(ctx
, buffer
, attachment
);
2713 /* user-created framebuffer FBO */
2714 att
= _mesa_get_attachment(ctx
, buffer
, attachment
);
2718 _mesa_error(ctx
, GL_INVALID_ENUM
,
2719 "glGetFramebufferAttachmentParameterivEXT(attachment)");
2723 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
2724 /* the depth and stencil attachments must point to the same buffer */
2725 const struct gl_renderbuffer_attachment
*depthAtt
, *stencilAtt
;
2726 depthAtt
= _mesa_get_attachment(ctx
, buffer
, GL_DEPTH_ATTACHMENT
);
2727 stencilAtt
= _mesa_get_attachment(ctx
, buffer
, GL_STENCIL_ATTACHMENT
);
2728 if (depthAtt
->Renderbuffer
!= stencilAtt
->Renderbuffer
) {
2729 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2730 "glGetFramebufferAttachmentParameterivEXT(DEPTH/STENCIL"
2731 " attachments differ)");
2736 /* No need to flush here */
2739 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
2740 *params
= _mesa_is_winsys_fbo(buffer
)
2741 ? GL_FRAMEBUFFER_DEFAULT
: att
->Type
;
2743 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
2744 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
2745 *params
= att
->Renderbuffer
->Name
;
2747 else if (att
->Type
== GL_TEXTURE
) {
2748 *params
= att
->Texture
->Name
;
2751 assert(att
->Type
== GL_NONE
);
2752 if (_mesa_is_desktop_gl(ctx
) || _mesa_is_gles3(ctx
)) {
2755 goto invalid_pname_enum
;
2759 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
2760 if (att
->Type
== GL_TEXTURE
) {
2761 *params
= att
->TextureLevel
;
2763 else if (att
->Type
== GL_NONE
) {
2764 _mesa_error(ctx
, err
,
2765 "glGetFramebufferAttachmentParameterivEXT(pname)");
2768 goto invalid_pname_enum
;
2771 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
2772 if (att
->Type
== GL_TEXTURE
) {
2773 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
2774 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
2780 else if (att
->Type
== GL_NONE
) {
2781 _mesa_error(ctx
, err
,
2782 "glGetFramebufferAttachmentParameterivEXT(pname)");
2785 goto invalid_pname_enum
;
2788 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
2789 if (ctx
->API
== API_OPENGLES
) {
2790 goto invalid_pname_enum
;
2791 } else if (att
->Type
== GL_NONE
) {
2792 _mesa_error(ctx
, err
,
2793 "glGetFramebufferAttachmentParameterivEXT(pname)");
2794 } else if (att
->Type
== GL_TEXTURE
) {
2795 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_3D
) {
2796 *params
= att
->Zoffset
;
2803 goto invalid_pname_enum
;
2806 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
:
2807 if ((!_mesa_is_desktop_gl(ctx
) || !ctx
->Extensions
.ARB_framebuffer_object
)
2808 && !_mesa_is_gles3(ctx
)) {
2809 goto invalid_pname_enum
;
2811 else if (att
->Type
== GL_NONE
) {
2812 _mesa_error(ctx
, err
,
2813 "glGetFramebufferAttachmentParameterivEXT(pname)");
2816 if (ctx
->Extensions
.EXT_framebuffer_sRGB
) {
2817 *params
= _mesa_get_format_color_encoding(att
->Renderbuffer
->Format
);
2820 /* According to ARB_framebuffer_sRGB, we should return LINEAR
2821 * if the sRGB conversion is unsupported. */
2822 *params
= GL_LINEAR
;
2826 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
:
2827 if ((ctx
->API
!= API_OPENGL_COMPAT
|| !ctx
->Extensions
.ARB_framebuffer_object
)
2828 && ctx
->API
!= API_OPENGL_CORE
2829 && !_mesa_is_gles3(ctx
)) {
2830 goto invalid_pname_enum
;
2832 else if (att
->Type
== GL_NONE
) {
2833 _mesa_error(ctx
, err
,
2834 "glGetFramebufferAttachmentParameterivEXT(pname)");
2837 gl_format format
= att
->Renderbuffer
->Format
;
2839 /* Page 235 (page 247 of the PDF) in section 6.1.13 of the OpenGL ES
2842 * "If pname is FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE.... If
2843 * attachment is DEPTH_STENCIL_ATTACHMENT the query will fail and
2844 * generate an INVALID_OPERATION error.
2846 if (_mesa_is_gles3(ctx
) && attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
2847 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2848 "glGetFramebufferAttachmentParameteriv(cannot query "
2849 "GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE of "
2850 "GL_DEPTH_STENCIL_ATTACHMENT");
2854 if (format
== MESA_FORMAT_S8
) {
2858 else if (format
== MESA_FORMAT_Z32_FLOAT_X24S8
) {
2859 /* depends on the attachment parameter */
2860 if (attachment
== GL_STENCIL_ATTACHMENT
) {
2868 *params
= _mesa_get_format_datatype(format
);
2872 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
2873 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
2874 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
2875 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
2876 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
2877 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
2878 if ((!_mesa_is_desktop_gl(ctx
) || !ctx
->Extensions
.ARB_framebuffer_object
)
2879 && !_mesa_is_gles3(ctx
)) {
2880 goto invalid_pname_enum
;
2882 else if (att
->Type
== GL_NONE
) {
2883 _mesa_error(ctx
, err
,
2884 "glGetFramebufferAttachmentParameterivEXT(pname)");
2886 else if (att
->Texture
) {
2887 const struct gl_texture_image
*texImage
=
2888 _mesa_select_tex_image(ctx
, att
->Texture
, att
->Texture
->Target
,
2891 *params
= get_component_bits(pname
, texImage
->_BaseFormat
,
2892 texImage
->TexFormat
);
2898 else if (att
->Renderbuffer
) {
2899 *params
= get_component_bits(pname
, att
->Renderbuffer
->_BaseFormat
,
2900 att
->Renderbuffer
->Format
);
2903 _mesa_problem(ctx
, "glGetFramebufferAttachmentParameterivEXT:"
2904 " invalid FBO attachment structure");
2908 goto invalid_pname_enum
;
2914 _mesa_error(ctx
, GL_INVALID_ENUM
,
2915 "glGetFramebufferAttachmentParameteriv(pname)");
2921 _mesa_GenerateMipmap(GLenum target
)
2923 struct gl_texture_image
*srcImage
;
2924 struct gl_texture_object
*texObj
;
2927 GET_CURRENT_CONTEXT(ctx
);
2929 FLUSH_VERTICES(ctx
, 0);
2933 error
= _mesa_is_gles(ctx
);
2939 error
= ctx
->API
== API_OPENGLES
;
2941 case GL_TEXTURE_CUBE_MAP
:
2942 error
= !ctx
->Extensions
.ARB_texture_cube_map
;
2944 case GL_TEXTURE_1D_ARRAY
:
2945 error
= _mesa_is_gles(ctx
) || !ctx
->Extensions
.EXT_texture_array
;
2947 case GL_TEXTURE_2D_ARRAY
:
2948 error
= (_mesa_is_gles(ctx
) && ctx
->Version
< 30)
2949 || !ctx
->Extensions
.EXT_texture_array
;
2956 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGenerateMipmapEXT(target=%s)",
2957 _mesa_lookup_enum_by_nr(target
));
2961 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2963 if (texObj
->BaseLevel
>= texObj
->MaxLevel
) {
2968 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
&&
2969 !_mesa_cube_complete(texObj
)) {
2970 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2971 "glGenerateMipmap(incomplete cube map)");
2975 _mesa_lock_texture(ctx
, texObj
);
2977 srcImage
= _mesa_select_tex_image(ctx
, texObj
, target
, texObj
->BaseLevel
);
2979 _mesa_unlock_texture(ctx
, texObj
);
2980 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2981 "glGenerateMipmap(zero size base image)");
2985 if (_mesa_is_enum_format_integer(srcImage
->InternalFormat
) ||
2986 _mesa_is_depthstencil_format(srcImage
->InternalFormat
) ||
2987 _mesa_is_stencil_format(srcImage
->InternalFormat
)) {
2988 _mesa_unlock_texture(ctx
, texObj
);
2989 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2990 "glGenerateMipmap(invalid internal format)");
2994 if (target
== GL_TEXTURE_CUBE_MAP
) {
2996 for (face
= 0; face
< 6; face
++)
2997 ctx
->Driver
.GenerateMipmap(ctx
,
2998 GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
+ face
,
3002 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
3004 _mesa_unlock_texture(ctx
, texObj
);
3008 static const struct gl_renderbuffer_attachment
*
3009 find_attachment(const struct gl_framebuffer
*fb
,
3010 const struct gl_renderbuffer
*rb
)
3013 for (i
= 0; i
< Elements(fb
->Attachment
); i
++) {
3014 if (fb
->Attachment
[i
].Renderbuffer
== rb
)
3015 return &fb
->Attachment
[i
];
3022 * Helper function for checking if the datatypes of color buffers are
3023 * compatible for glBlitFramebuffer. From the 3.1 spec, page 198:
3025 * "GL_INVALID_OPERATION is generated if mask contains GL_COLOR_BUFFER_BIT
3026 * and any of the following conditions hold:
3027 * - The read buffer contains fixed-point or floating-point values and any
3028 * draw buffer contains neither fixed-point nor floating-point values.
3029 * - The read buffer contains unsigned integer values and any draw buffer
3030 * does not contain unsigned integer values.
3031 * - The read buffer contains signed integer values and any draw buffer
3032 * does not contain signed integer values."
3035 compatible_color_datatypes(gl_format srcFormat
, gl_format dstFormat
)
3037 GLenum srcType
= _mesa_get_format_datatype(srcFormat
);
3038 GLenum dstType
= _mesa_get_format_datatype(dstFormat
);
3040 if (srcType
!= GL_INT
&& srcType
!= GL_UNSIGNED_INT
) {
3041 assert(srcType
== GL_UNSIGNED_NORMALIZED
||
3042 srcType
== GL_SIGNED_NORMALIZED
||
3043 srcType
== GL_FLOAT
);
3044 /* Boil any of those types down to GL_FLOAT */
3048 if (dstType
!= GL_INT
&& dstType
!= GL_UNSIGNED_INT
) {
3049 assert(dstType
== GL_UNSIGNED_NORMALIZED
||
3050 dstType
== GL_SIGNED_NORMALIZED
||
3051 dstType
== GL_FLOAT
);
3052 /* Boil any of those types down to GL_FLOAT */
3056 return srcType
== dstType
;
3061 compatible_resolve_formats(const struct gl_renderbuffer
*readRb
,
3062 const struct gl_renderbuffer
*drawRb
)
3064 GLenum readFormat
, drawFormat
;
3066 /* The simple case where we know the backing Mesa formats are the same.
3068 if (_mesa_get_srgb_format_linear(readRb
->Format
) ==
3069 _mesa_get_srgb_format_linear(drawRb
->Format
)) {
3073 /* The Mesa formats are different, so we must check whether the internal
3074 * formats are compatible.
3076 * Under some circumstances, the user may request e.g. two GL_RGBA8
3077 * textures and get two entirely different Mesa formats like RGBA8888 and
3078 * ARGB8888. Drivers behaving like that should be able to cope with
3079 * non-matching formats by themselves, because it's not the user's fault.
3081 * Blits between linear and sRGB formats are also allowed.
3083 readFormat
= _mesa_get_nongeneric_internalformat(readRb
->InternalFormat
);
3084 drawFormat
= _mesa_get_nongeneric_internalformat(drawRb
->InternalFormat
);
3085 readFormat
= _mesa_get_linear_internalformat(readFormat
);
3086 drawFormat
= _mesa_get_linear_internalformat(drawFormat
);
3088 if (readFormat
== drawFormat
) {
3096 is_valid_blit_filter(const struct gl_context
*ctx
, GLenum filter
)
3102 case GL_SCALED_RESOLVE_FASTEST_EXT
:
3103 case GL_SCALED_RESOLVE_NICEST_EXT
:
3104 return ctx
->Extensions
.EXT_framebuffer_multisample_blit_scaled
;
3111 * Blit rectangular region, optionally from one framebuffer to another.
3113 * Note, if the src buffer is multisampled and the dest is not, this is
3114 * when the samples must be resolved to a single color.
3117 _mesa_BlitFramebuffer(GLint srcX0
, GLint srcY0
, GLint srcX1
, GLint srcY1
,
3118 GLint dstX0
, GLint dstY0
, GLint dstX1
, GLint dstY1
,
3119 GLbitfield mask
, GLenum filter
)
3121 const GLbitfield legalMaskBits
= (GL_COLOR_BUFFER_BIT
|
3122 GL_DEPTH_BUFFER_BIT
|
3123 GL_STENCIL_BUFFER_BIT
);
3124 const struct gl_framebuffer
*readFb
, *drawFb
;
3125 GET_CURRENT_CONTEXT(ctx
);
3127 FLUSH_VERTICES(ctx
, 0);
3129 if (MESA_VERBOSE
& VERBOSE_API
)
3131 "glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d, 0x%x, %s)\n",
3132 srcX0
, srcY0
, srcX1
, srcY1
,
3133 dstX0
, dstY0
, dstX1
, dstY1
,
3134 mask
, _mesa_lookup_enum_by_nr(filter
));
3136 if (ctx
->NewState
) {
3137 _mesa_update_state(ctx
);
3140 readFb
= ctx
->ReadBuffer
;
3141 drawFb
= ctx
->DrawBuffer
;
3143 if (!readFb
|| !drawFb
) {
3144 /* This will normally never happen but someday we may want to
3145 * support MakeCurrent() with no drawables.
3150 /* check for complete framebuffers */
3151 if (drawFb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
||
3152 readFb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
3153 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
3154 "glBlitFramebufferEXT(incomplete draw/read buffers)");
3158 if (!is_valid_blit_filter(ctx
, filter
)) {
3159 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBlitFramebufferEXT(%s)",
3160 _mesa_lookup_enum_by_nr(filter
));
3164 if ((filter
== GL_SCALED_RESOLVE_FASTEST_EXT
||
3165 filter
== GL_SCALED_RESOLVE_NICEST_EXT
) &&
3166 (readFb
->Visual
.samples
== 0 || drawFb
->Visual
.samples
> 0)) {
3167 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBlitFramebufferEXT(%s)",
3168 _mesa_lookup_enum_by_nr(filter
));
3172 if (mask
& ~legalMaskBits
) {
3173 _mesa_error( ctx
, GL_INVALID_VALUE
, "glBlitFramebufferEXT(mask)");
3177 /* depth/stencil must be blitted with nearest filtering */
3178 if ((mask
& (GL_DEPTH_BUFFER_BIT
| GL_STENCIL_BUFFER_BIT
))
3179 && filter
!= GL_NEAREST
) {
3180 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3181 "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter)");
3185 /* get color read/draw renderbuffers */
3186 if (mask
& GL_COLOR_BUFFER_BIT
) {
3187 const GLuint numColorDrawBuffers
= ctx
->DrawBuffer
->_NumColorDrawBuffers
;
3188 const struct gl_renderbuffer
*colorReadRb
= readFb
->_ColorReadBuffer
;
3189 const struct gl_renderbuffer
*colorDrawRb
= NULL
;
3192 /* From the EXT_framebuffer_object spec:
3194 * "If a buffer is specified in <mask> and does not exist in both
3195 * the read and draw framebuffers, the corresponding bit is silently
3198 if (!colorReadRb
|| numColorDrawBuffers
== 0) {
3199 mask
&= ~GL_COLOR_BUFFER_BIT
;
3202 for (i
= 0; i
< numColorDrawBuffers
; i
++) {
3203 colorDrawRb
= ctx
->DrawBuffer
->_ColorDrawBuffers
[i
];
3207 /* Page 193 (page 205 of the PDF) in section 4.3.2 of the OpenGL
3208 * ES 3.0.1 spec says:
3210 * "If the source and destination buffers are identical, an
3211 * INVALID_OPERATION error is generated. Different mipmap
3212 * levels of a texture, different layers of a three-
3213 * dimensional texture or two-dimensional array texture, and
3214 * different faces of a cube map texture do not constitute
3215 * identical buffers."
3217 if (_mesa_is_gles3(ctx
) && (colorDrawRb
== colorReadRb
)) {
3218 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3219 "glBlitFramebuffer(source and destination color "
3220 "buffer cannot be the same)");
3224 if (!compatible_color_datatypes(colorReadRb
->Format
,
3225 colorDrawRb
->Format
)) {
3226 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3227 "glBlitFramebufferEXT(color buffer datatypes mismatch)");
3230 /* extra checks for multisample copies... */
3231 if (readFb
->Visual
.samples
> 0 || drawFb
->Visual
.samples
> 0) {
3232 /* color formats must match */
3233 if (!compatible_resolve_formats(colorReadRb
, colorDrawRb
)) {
3234 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3235 "glBlitFramebufferEXT(bad src/dst multisample pixel formats)");
3240 if (filter
!= GL_NEAREST
) {
3241 /* From EXT_framebuffer_multisample_blit_scaled specification:
3242 * "Calling BlitFramebuffer will result in an INVALID_OPERATION error
3243 * if filter is not NEAREST and read buffer contains integer data."
3245 GLenum type
= _mesa_get_format_datatype(colorReadRb
->Format
);
3246 if (type
== GL_INT
|| type
== GL_UNSIGNED_INT
) {
3247 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3248 "glBlitFramebufferEXT(integer color type)");
3255 if (mask
& GL_STENCIL_BUFFER_BIT
) {
3256 struct gl_renderbuffer
*readRb
=
3257 readFb
->Attachment
[BUFFER_STENCIL
].Renderbuffer
;
3258 struct gl_renderbuffer
*drawRb
=
3259 drawFb
->Attachment
[BUFFER_STENCIL
].Renderbuffer
;
3261 /* From the EXT_framebuffer_object spec:
3263 * "If a buffer is specified in <mask> and does not exist in both
3264 * the read and draw framebuffers, the corresponding bit is silently
3267 if ((readRb
== NULL
) || (drawRb
== NULL
)) {
3268 mask
&= ~GL_STENCIL_BUFFER_BIT
;
3271 int read_z_bits
, draw_z_bits
;
3273 if (_mesa_is_gles3(ctx
) && (drawRb
== readRb
)) {
3274 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3275 "glBlitFramebuffer(source and destination stencil "
3276 "buffer cannot be the same)");
3280 if (_mesa_get_format_bits(readRb
->Format
, GL_STENCIL_BITS
) !=
3281 _mesa_get_format_bits(drawRb
->Format
, GL_STENCIL_BITS
)) {
3282 /* There is no need to check the stencil datatype here, because
3283 * there is only one: GL_UNSIGNED_INT.
3285 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3286 "glBlitFramebuffer(stencil attachment format mismatch)");
3290 read_z_bits
= _mesa_get_format_bits(readRb
->Format
, GL_DEPTH_BITS
);
3291 draw_z_bits
= _mesa_get_format_bits(drawRb
->Format
, GL_DEPTH_BITS
);
3293 /* If both buffers also have depth data, the depth formats must match
3294 * as well. If one doesn't have depth, it's not blitted, so we should
3295 * ignore the depth format check.
3297 if (read_z_bits
> 0 && draw_z_bits
> 0 &&
3298 (read_z_bits
!= draw_z_bits
||
3299 _mesa_get_format_datatype(readRb
->Format
) !=
3300 _mesa_get_format_datatype(drawRb
->Format
))) {
3302 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBlitFramebuffer"
3303 "(stencil attachment depth format mismatch)");
3309 if (mask
& GL_DEPTH_BUFFER_BIT
) {
3310 struct gl_renderbuffer
*readRb
=
3311 readFb
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
3312 struct gl_renderbuffer
*drawRb
=
3313 drawFb
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
3315 /* From the EXT_framebuffer_object spec:
3317 * "If a buffer is specified in <mask> and does not exist in both
3318 * the read and draw framebuffers, the corresponding bit is silently
3321 if ((readRb
== NULL
) || (drawRb
== NULL
)) {
3322 mask
&= ~GL_DEPTH_BUFFER_BIT
;
3325 int read_s_bit
, draw_s_bit
;
3327 if (_mesa_is_gles3(ctx
) && (drawRb
== readRb
)) {
3328 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3329 "glBlitFramebuffer(source and destination depth "
3330 "buffer cannot be the same)");
3334 if ((_mesa_get_format_bits(readRb
->Format
, GL_DEPTH_BITS
) !=
3335 _mesa_get_format_bits(drawRb
->Format
, GL_DEPTH_BITS
)) ||
3336 (_mesa_get_format_datatype(readRb
->Format
) !=
3337 _mesa_get_format_datatype(drawRb
->Format
))) {
3338 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3339 "glBlitFramebuffer(depth attachment format mismatch)");
3343 read_s_bit
= _mesa_get_format_bits(readRb
->Format
, GL_STENCIL_BITS
);
3344 draw_s_bit
= _mesa_get_format_bits(drawRb
->Format
, GL_STENCIL_BITS
);
3346 /* If both buffers also have stencil data, the stencil formats must
3347 * match as well. If one doesn't have stencil, it's not blitted, so
3348 * we should ignore the stencil format check.
3350 if (read_s_bit
> 0 && draw_s_bit
> 0 && read_s_bit
!= draw_s_bit
) {
3351 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBlitFramebuffer"
3352 "(depth attachment stencil bits mismatch)");
3359 if (_mesa_is_gles3(ctx
)) {
3360 /* Page 194 (page 206 of the PDF) in section 4.3.2 of the OpenGL ES
3363 * "If SAMPLE_BUFFERS for the draw framebuffer is greater than zero,
3364 * an INVALID_OPERATION error is generated."
3366 if (drawFb
->Visual
.samples
> 0) {
3367 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3368 "glBlitFramebuffer(destination samples must be 0)");
3372 /* Page 194 (page 206 of the PDF) in section 4.3.2 of the OpenGL ES
3375 * "If SAMPLE_BUFFERS for the read framebuffer is greater than zero,
3376 * no copy is performed and an INVALID_OPERATION error is generated
3377 * if the formats of the read and draw framebuffers are not
3378 * identical or if the source and destination rectangles are not
3379 * defined with the same (X0, Y0) and (X1, Y1) bounds."
3381 * The format check was made above because desktop OpenGL has the same
3384 if (readFb
->Visual
.samples
> 0
3385 && (srcX0
!= dstX0
|| srcY0
!= dstY0
3386 || srcX1
!= dstX1
|| srcY1
!= dstY1
)) {
3387 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3388 "glBlitFramebuffer(bad src/dst multisample region)");
3392 if (readFb
->Visual
.samples
> 0 &&
3393 drawFb
->Visual
.samples
> 0 &&
3394 readFb
->Visual
.samples
!= drawFb
->Visual
.samples
) {
3395 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3396 "glBlitFramebufferEXT(mismatched samples)");
3400 /* extra checks for multisample copies... */
3401 if ((readFb
->Visual
.samples
> 0 || drawFb
->Visual
.samples
> 0) &&
3402 (filter
== GL_NEAREST
|| filter
== GL_LINEAR
)) {
3403 /* src and dest region sizes must be the same */
3404 if (abs(srcX1
- srcX0
) != abs(dstX1
- dstX0
) ||
3405 abs(srcY1
- srcY0
) != abs(dstY1
- dstY0
)) {
3406 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3407 "glBlitFramebufferEXT(bad src/dst multisample region sizes)");
3413 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
3414 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBlitFramebufferEXT");
3420 const struct gl_renderbuffer
*colorReadRb
= readFb
->_ColorReadBuffer
;
3421 const struct gl_renderbuffer
*colorDrawRb
= NULL
;
3424 printf("glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d,"
3426 srcX0
, srcY0
, srcX1
, srcY1
,
3427 dstX0
, dstY0
, dstX1
, dstY1
,
3430 const struct gl_renderbuffer_attachment
*att
;
3432 att
= find_attachment(readFb
, colorReadRb
);
3433 printf(" Src FBO %u RB %u (%dx%d) ",
3434 readFb
->Name
, colorReadRb
->Name
,
3435 colorReadRb
->Width
, colorReadRb
->Height
);
3436 if (att
&& att
->Texture
) {
3437 printf("Tex %u tgt 0x%x level %u face %u",
3439 att
->Texture
->Target
,
3445 /* Print all active color render buffers */
3446 for (i
= 0; i
< ctx
->DrawBuffer
->_NumColorDrawBuffers
; i
++) {
3447 colorDrawRb
= ctx
->DrawBuffer
->_ColorDrawBuffers
[i
];
3451 att
= find_attachment(drawFb
, colorDrawRb
);
3452 printf(" Dst FBO %u RB %u (%dx%d) ",
3453 drawFb
->Name
, colorDrawRb
->Name
,
3454 colorDrawRb
->Width
, colorDrawRb
->Height
);
3455 if (att
&& att
->Texture
) {
3456 printf("Tex %u tgt 0x%x level %u face %u",
3458 att
->Texture
->Target
,
3468 (srcX1
- srcX0
) == 0 || (srcY1
- srcY0
) == 0 ||
3469 (dstX1
- dstX0
) == 0 || (dstY1
- dstY0
) == 0) {
3473 ASSERT(ctx
->Driver
.BlitFramebuffer
);
3474 ctx
->Driver
.BlitFramebuffer(ctx
,
3475 srcX0
, srcY0
, srcX1
, srcY1
,
3476 dstX0
, dstY0
, dstX1
, dstY1
,
3482 invalidate_framebuffer_storage(GLenum target
, GLsizei numAttachments
,
3483 const GLenum
*attachments
, GLint x
, GLint y
,
3484 GLsizei width
, GLsizei height
, const char *name
)
3487 struct gl_framebuffer
*fb
;
3488 GET_CURRENT_CONTEXT(ctx
);
3490 fb
= get_framebuffer_target(ctx
, target
);
3492 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", name
);
3496 if (numAttachments
< 0) {
3497 _mesa_error(ctx
, GL_INVALID_VALUE
,
3498 "%s(numAttachments < 0)", name
);
3502 /* The GL_ARB_invalidate_subdata spec says:
3504 * "If an attachment is specified that does not exist in the
3505 * framebuffer bound to <target>, it is ignored."
3509 * "If <attachments> contains COLOR_ATTACHMENTm and m is greater than
3510 * or equal to the value of MAX_COLOR_ATTACHMENTS, then the error
3511 * INVALID_OPERATION is generated."
3513 * No mention is made of GL_AUXi being out of range. Therefore, we allow
3514 * any enum that can be allowed by the API (OpenGL ES 3.0 has a different
3515 * set of retrictions).
3517 for (i
= 0; i
< numAttachments
; i
++) {
3518 if (_mesa_is_winsys_fbo(fb
)) {
3519 switch (attachments
[i
]) {
3525 /* Accumulation buffers and auxilary buffers were removed in
3526 * OpenGL 3.1, and they never existed in OpenGL ES.
3528 if (ctx
->API
!= API_OPENGL_COMPAT
)
3538 case GL_FRONT_RIGHT
:
3539 if (!_mesa_is_desktop_gl(ctx
))
3546 switch (attachments
[i
]) {
3547 case GL_DEPTH_ATTACHMENT
:
3548 case GL_STENCIL_ATTACHMENT
:
3550 case GL_COLOR_ATTACHMENT0
:
3551 case GL_COLOR_ATTACHMENT1
:
3552 case GL_COLOR_ATTACHMENT2
:
3553 case GL_COLOR_ATTACHMENT3
:
3554 case GL_COLOR_ATTACHMENT4
:
3555 case GL_COLOR_ATTACHMENT5
:
3556 case GL_COLOR_ATTACHMENT6
:
3557 case GL_COLOR_ATTACHMENT7
:
3558 case GL_COLOR_ATTACHMENT8
:
3559 case GL_COLOR_ATTACHMENT9
:
3560 case GL_COLOR_ATTACHMENT10
:
3561 case GL_COLOR_ATTACHMENT11
:
3562 case GL_COLOR_ATTACHMENT12
:
3563 case GL_COLOR_ATTACHMENT13
:
3564 case GL_COLOR_ATTACHMENT14
:
3565 case GL_COLOR_ATTACHMENT15
: {
3566 unsigned k
= attachments
[i
] - GL_COLOR_ATTACHMENT0
;
3567 if (k
>= ctx
->Const
.MaxColorAttachments
) {
3568 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3569 "%s(attachment >= max. color attachments)", name
);
3579 /* We don't actually do anything for this yet. Just return after
3580 * validating the parameters and generating the required errors.
3585 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(attachment)", name
);
3590 _mesa_InvalidateSubFramebuffer(GLenum target
, GLsizei numAttachments
,
3591 const GLenum
*attachments
, GLint x
, GLint y
,
3592 GLsizei width
, GLsizei height
)
3594 invalidate_framebuffer_storage(target
, numAttachments
, attachments
,
3595 x
, y
, width
, height
,
3596 "glInvalidateSubFramebuffer");
3600 _mesa_InvalidateFramebuffer(GLenum target
, GLsizei numAttachments
,
3601 const GLenum
*attachments
)
3603 /* The GL_ARB_invalidate_subdata spec says:
3607 * void InvalidateFramebuffer(enum target,
3608 * sizei numAttachments,
3609 * const enum *attachments);
3611 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
3612 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
3613 * <MAX_VIEWPORT_DIMS[1]> respectively."
3615 invalidate_framebuffer_storage(target
, numAttachments
, attachments
,
3616 0, 0, MAX_VIEWPORT_WIDTH
, MAX_VIEWPORT_HEIGHT
,
3617 "glInvalidateFramebuffer");
3621 _mesa_DiscardFramebufferEXT(GLenum target
, GLsizei numAttachments
,
3622 const GLenum
*attachments
)
3624 struct gl_framebuffer
*fb
;
3627 GET_CURRENT_CONTEXT(ctx
);
3629 fb
= get_framebuffer_target(ctx
, target
);
3631 _mesa_error(ctx
, GL_INVALID_ENUM
,
3632 "glDiscardFramebufferEXT(target %s)",
3633 _mesa_lookup_enum_by_nr(target
));
3637 if (numAttachments
< 0) {
3638 _mesa_error(ctx
, GL_INVALID_VALUE
,
3639 "glDiscardFramebufferEXT(numAttachments < 0)");
3643 for (i
= 0; i
< numAttachments
; i
++) {
3644 switch (attachments
[i
]) {
3648 if (_mesa_is_user_fbo(fb
))
3651 case GL_COLOR_ATTACHMENT0
:
3652 case GL_DEPTH_ATTACHMENT
:
3653 case GL_STENCIL_ATTACHMENT
:
3654 if (_mesa_is_winsys_fbo(fb
))
3662 if (ctx
->Driver
.DiscardFramebuffer
)
3663 ctx
->Driver
.DiscardFramebuffer(ctx
, target
, numAttachments
, attachments
);
3668 _mesa_error(ctx
, GL_INVALID_ENUM
,
3669 "glDiscardFramebufferEXT(attachment %s)",
3670 _mesa_lookup_enum_by_nr(attachments
[i
]));