2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (C) 1999-2009 VMware, Inc. All Rights Reserved.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 * GL_EXT/ARB_framebuffer_object extensions
40 #include "framebuffer.h"
41 #include "glformats.h"
44 #include "mfeatures.h"
46 #include "renderbuffer.h"
52 /** Set this to 1 to debug/log glBlitFramebuffer() calls */
59 * None of the GL_EXT_framebuffer_object functions are compiled into
66 * When glGenRender/FramebuffersEXT() is called we insert pointers to
67 * these placeholder objects into the hash table.
68 * Later, when the object ID is first bound, we replace the placeholder
69 * with the real frame/renderbuffer.
71 static struct gl_framebuffer DummyFramebuffer
;
72 static struct gl_renderbuffer DummyRenderbuffer
;
74 /* We bind this framebuffer when applications pass a NULL
75 * drawable/surface in make current. */
76 static struct gl_framebuffer IncompleteFramebuffer
;
80 delete_dummy_renderbuffer(struct gl_renderbuffer
*rb
)
86 delete_dummy_framebuffer(struct gl_framebuffer
*fb
)
93 _mesa_init_fbobjects(struct gl_context
*ctx
)
95 _glthread_INIT_MUTEX(DummyFramebuffer
.Mutex
);
96 _glthread_INIT_MUTEX(DummyRenderbuffer
.Mutex
);
97 _glthread_INIT_MUTEX(IncompleteFramebuffer
.Mutex
);
98 DummyFramebuffer
.Delete
= delete_dummy_framebuffer
;
99 DummyRenderbuffer
.Delete
= delete_dummy_renderbuffer
;
100 IncompleteFramebuffer
.Delete
= delete_dummy_framebuffer
;
103 struct gl_framebuffer
*
104 _mesa_get_incomplete_framebuffer(void)
106 return &IncompleteFramebuffer
;
110 * Helper routine for getting a gl_renderbuffer.
112 struct gl_renderbuffer
*
113 _mesa_lookup_renderbuffer(struct gl_context
*ctx
, GLuint id
)
115 struct gl_renderbuffer
*rb
;
120 rb
= (struct gl_renderbuffer
*)
121 _mesa_HashLookup(ctx
->Shared
->RenderBuffers
, id
);
127 * Helper routine for getting a gl_framebuffer.
129 struct gl_framebuffer
*
130 _mesa_lookup_framebuffer(struct gl_context
*ctx
, GLuint id
)
132 struct gl_framebuffer
*fb
;
137 fb
= (struct gl_framebuffer
*)
138 _mesa_HashLookup(ctx
->Shared
->FrameBuffers
, id
);
144 * Mark the given framebuffer as invalid. This will force the
145 * test for framebuffer completeness to be done before the framebuffer
149 invalidate_framebuffer(struct gl_framebuffer
*fb
)
151 fb
->_Status
= 0; /* "indeterminate" */
156 * Return the gl_framebuffer object which corresponds to the given
157 * framebuffer target, such as GL_DRAW_FRAMEBUFFER.
158 * Check support for GL_EXT_framebuffer_blit to determine if certain
160 * \return gl_framebuffer pointer or NULL if target is illegal
162 static struct gl_framebuffer
*
163 get_framebuffer_target(struct gl_context
*ctx
, GLenum target
)
166 case GL_DRAW_FRAMEBUFFER
:
167 return ctx
->Extensions
.EXT_framebuffer_blit
&& _mesa_is_desktop_gl(ctx
)
168 ? ctx
->DrawBuffer
: NULL
;
169 case GL_READ_FRAMEBUFFER
:
170 return ctx
->Extensions
.EXT_framebuffer_blit
&& _mesa_is_desktop_gl(ctx
)
171 ? ctx
->ReadBuffer
: NULL
;
172 case GL_FRAMEBUFFER_EXT
:
173 return ctx
->DrawBuffer
;
181 * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding
182 * gl_renderbuffer_attachment object.
183 * This function is only used for user-created FB objects, not the
184 * default / window-system FB object.
185 * If \p attachment is GL_DEPTH_STENCIL_ATTACHMENT, return a pointer to
186 * the depth buffer attachment point.
188 struct gl_renderbuffer_attachment
*
189 _mesa_get_attachment(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
194 assert(_mesa_is_user_fbo(fb
));
196 switch (attachment
) {
197 case GL_COLOR_ATTACHMENT0_EXT
:
198 case GL_COLOR_ATTACHMENT1_EXT
:
199 case GL_COLOR_ATTACHMENT2_EXT
:
200 case GL_COLOR_ATTACHMENT3_EXT
:
201 case GL_COLOR_ATTACHMENT4_EXT
:
202 case GL_COLOR_ATTACHMENT5_EXT
:
203 case GL_COLOR_ATTACHMENT6_EXT
:
204 case GL_COLOR_ATTACHMENT7_EXT
:
205 case GL_COLOR_ATTACHMENT8_EXT
:
206 case GL_COLOR_ATTACHMENT9_EXT
:
207 case GL_COLOR_ATTACHMENT10_EXT
:
208 case GL_COLOR_ATTACHMENT11_EXT
:
209 case GL_COLOR_ATTACHMENT12_EXT
:
210 case GL_COLOR_ATTACHMENT13_EXT
:
211 case GL_COLOR_ATTACHMENT14_EXT
:
212 case GL_COLOR_ATTACHMENT15_EXT
:
213 /* Only OpenGL ES 1.x forbids color attachments other than
214 * GL_COLOR_ATTACHMENT0. For all other APIs the limit set by the
217 i
= attachment
- GL_COLOR_ATTACHMENT0_EXT
;
218 if (i
>= ctx
->Const
.MaxColorAttachments
219 || (i
> 0 && ctx
->API
== API_OPENGLES
)) {
222 return &fb
->Attachment
[BUFFER_COLOR0
+ i
];
223 case GL_DEPTH_STENCIL_ATTACHMENT
:
224 if (!_mesa_is_desktop_gl(ctx
))
227 case GL_DEPTH_ATTACHMENT_EXT
:
228 return &fb
->Attachment
[BUFFER_DEPTH
];
229 case GL_STENCIL_ATTACHMENT_EXT
:
230 return &fb
->Attachment
[BUFFER_STENCIL
];
238 * As above, but only used for getting attachments of the default /
239 * window-system framebuffer (not user-created framebuffer objects).
241 static struct gl_renderbuffer_attachment
*
242 _mesa_get_fb0_attachment(struct gl_context
*ctx
, struct gl_framebuffer
*fb
,
245 assert(_mesa_is_winsys_fbo(fb
));
247 switch (attachment
) {
249 return &fb
->Attachment
[BUFFER_FRONT_LEFT
];
251 return &fb
->Attachment
[BUFFER_FRONT_RIGHT
];
253 return &fb
->Attachment
[BUFFER_BACK_LEFT
];
255 return &fb
->Attachment
[BUFFER_BACK_RIGHT
];
257 if (fb
->Visual
.numAuxBuffers
== 1) {
258 return &fb
->Attachment
[BUFFER_AUX0
];
262 /* Page 336 (page 352 of the PDF) of the OpenGL 3.0 spec says:
264 * "If the default framebuffer is bound to target, then attachment must
265 * be one of FRONT LEFT, FRONT RIGHT, BACK LEFT, BACK RIGHT, or AUXi,
266 * identifying a color buffer; DEPTH, identifying the depth buffer; or
267 * STENCIL, identifying the stencil buffer."
269 * Revision #34 of the ARB_framebuffer_object spec has essentially the same
270 * language. However, revision #33 of the ARB_framebuffer_object spec
273 * "If the default framebuffer is bound to <target>, then <attachment>
274 * must be one of FRONT_LEFT, FRONT_RIGHT, BACK_LEFT, BACK_RIGHT, AUXi,
275 * DEPTH_BUFFER, or STENCIL_BUFFER, identifying a color buffer, the
276 * depth buffer, or the stencil buffer, and <pname> may be
277 * FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE or
278 * FRAMEBUFFER_ATTACHMENT_OBJECT_NAME."
280 * The enum values for DEPTH_BUFFER and STENCIL_BUFFER have been removed
281 * from glext.h, so shipping apps should not use those values.
283 * Note that neither EXT_framebuffer_object nor OES_framebuffer_object
284 * support queries of the window system FBO.
287 return &fb
->Attachment
[BUFFER_DEPTH
];
289 return &fb
->Attachment
[BUFFER_STENCIL
];
298 * Remove any texture or renderbuffer attached to the given attachment
299 * point. Update reference counts, etc.
302 _mesa_remove_attachment(struct gl_context
*ctx
,
303 struct gl_renderbuffer_attachment
*att
)
305 if (att
->Type
== GL_TEXTURE
) {
306 ASSERT(att
->Texture
);
307 if (ctx
->Driver
.FinishRenderTexture
) {
308 /* tell driver that we're done rendering to this texture. */
309 ctx
->Driver
.FinishRenderTexture(ctx
, att
);
311 _mesa_reference_texobj(&att
->Texture
, NULL
); /* unbind */
312 ASSERT(!att
->Texture
);
314 if (att
->Type
== GL_TEXTURE
|| att
->Type
== GL_RENDERBUFFER_EXT
) {
315 ASSERT(!att
->Texture
);
316 _mesa_reference_renderbuffer(&att
->Renderbuffer
, NULL
); /* unbind */
317 ASSERT(!att
->Renderbuffer
);
320 att
->Complete
= GL_TRUE
;
325 * Bind a texture object to an attachment point.
326 * The previous binding, if any, will be removed first.
329 _mesa_set_texture_attachment(struct gl_context
*ctx
,
330 struct gl_framebuffer
*fb
,
331 struct gl_renderbuffer_attachment
*att
,
332 struct gl_texture_object
*texObj
,
333 GLenum texTarget
, GLuint level
, GLuint zoffset
)
335 if (att
->Texture
== texObj
) {
336 /* re-attaching same texture */
337 ASSERT(att
->Type
== GL_TEXTURE
);
338 if (ctx
->Driver
.FinishRenderTexture
)
339 ctx
->Driver
.FinishRenderTexture(ctx
, att
);
343 if (ctx
->Driver
.FinishRenderTexture
&& att
->Texture
)
344 ctx
->Driver
.FinishRenderTexture(ctx
, att
);
345 _mesa_remove_attachment(ctx
, att
);
346 att
->Type
= GL_TEXTURE
;
347 assert(!att
->Texture
);
348 _mesa_reference_texobj(&att
->Texture
, texObj
);
351 /* always update these fields */
352 att
->TextureLevel
= level
;
353 att
->CubeMapFace
= _mesa_tex_target_to_face(texTarget
);
354 att
->Zoffset
= zoffset
;
355 att
->Complete
= GL_FALSE
;
357 if (_mesa_get_attachment_teximage(att
)) {
358 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
361 invalidate_framebuffer(fb
);
366 * Bind a renderbuffer to an attachment point.
367 * The previous binding, if any, will be removed first.
370 _mesa_set_renderbuffer_attachment(struct gl_context
*ctx
,
371 struct gl_renderbuffer_attachment
*att
,
372 struct gl_renderbuffer
*rb
)
374 /* XXX check if re-doing same attachment, exit early */
375 _mesa_remove_attachment(ctx
, att
);
376 att
->Type
= GL_RENDERBUFFER_EXT
;
377 att
->Texture
= NULL
; /* just to be safe */
378 att
->Complete
= GL_FALSE
;
379 _mesa_reference_renderbuffer(&att
->Renderbuffer
, rb
);
384 * Fallback for ctx->Driver.FramebufferRenderbuffer()
385 * Attach a renderbuffer object to a framebuffer object.
388 _mesa_framebuffer_renderbuffer(struct gl_context
*ctx
,
389 struct gl_framebuffer
*fb
,
390 GLenum attachment
, struct gl_renderbuffer
*rb
)
392 struct gl_renderbuffer_attachment
*att
;
394 _glthread_LOCK_MUTEX(fb
->Mutex
);
396 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
399 _mesa_set_renderbuffer_attachment(ctx
, att
, rb
);
400 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
401 /* do stencil attachment here (depth already done above) */
402 att
= _mesa_get_attachment(ctx
, fb
, GL_STENCIL_ATTACHMENT_EXT
);
404 _mesa_set_renderbuffer_attachment(ctx
, att
, rb
);
406 rb
->AttachedAnytime
= GL_TRUE
;
409 _mesa_remove_attachment(ctx
, att
);
412 invalidate_framebuffer(fb
);
414 _glthread_UNLOCK_MUTEX(fb
->Mutex
);
419 * Fallback for ctx->Driver.ValidateFramebuffer()
420 * Check if the renderbuffer's formats are supported by the software
422 * Drivers should probably override this.
425 _mesa_validate_framebuffer(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
428 for (buf
= 0; buf
< BUFFER_COUNT
; buf
++) {
429 const struct gl_renderbuffer
*rb
= fb
->Attachment
[buf
].Renderbuffer
;
431 switch (rb
->_BaseFormat
) {
433 case GL_LUMINANCE_ALPHA
:
438 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
442 switch (rb
->Format
) {
443 /* XXX This list is likely incomplete. */
444 case MESA_FORMAT_RGB9_E5_FLOAT
:
445 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
448 /* render buffer format is supported by software rendering */
460 att_incomplete(const char *msg
)
462 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
463 _mesa_debug(NULL
, "attachment incomplete: %s\n", msg
);
472 fbo_incomplete(const char *msg
, int index
)
474 if (MESA_DEBUG_FLAGS
& DEBUG_INCOMPLETE_FBO
) {
475 _mesa_debug(NULL
, "FBO Incomplete: %s [%d]\n", msg
, index
);
481 * Is the given base format a legal format for a color renderbuffer?
484 _mesa_is_legal_color_format(const struct gl_context
*ctx
, GLenum baseFormat
)
486 switch (baseFormat
) {
491 case GL_LUMINANCE_ALPHA
:
494 return ctx
->Extensions
.ARB_framebuffer_object
;
497 return ctx
->Extensions
.ARB_texture_rg
;
505 * Is the given base format a legal format for a depth/stencil renderbuffer?
508 is_legal_depth_format(const struct gl_context
*ctx
, GLenum baseFormat
)
510 switch (baseFormat
) {
511 case GL_DEPTH_COMPONENT
:
512 case GL_DEPTH_STENCIL_EXT
:
521 * Test if an attachment point is complete and update its Complete field.
522 * \param format if GL_COLOR, this is a color attachment point,
523 * if GL_DEPTH, this is a depth component attachment point,
524 * if GL_STENCIL, this is a stencil component attachment point.
527 test_attachment_completeness(const struct gl_context
*ctx
, GLenum format
,
528 struct gl_renderbuffer_attachment
*att
)
530 assert(format
== GL_COLOR
|| format
== GL_DEPTH
|| format
== GL_STENCIL
);
532 /* assume complete */
533 att
->Complete
= GL_TRUE
;
535 /* Look for reasons why the attachment might be incomplete */
536 if (att
->Type
== GL_TEXTURE
) {
537 const struct gl_texture_object
*texObj
= att
->Texture
;
538 struct gl_texture_image
*texImage
;
542 att_incomplete("no texobj");
543 att
->Complete
= GL_FALSE
;
547 texImage
= texObj
->Image
[att
->CubeMapFace
][att
->TextureLevel
];
549 att_incomplete("no teximage");
550 att
->Complete
= GL_FALSE
;
553 if (texImage
->Width
< 1 || texImage
->Height
< 1) {
554 att_incomplete("teximage width/height=0");
555 printf("texobj = %u\n", texObj
->Name
);
556 printf("level = %d\n", att
->TextureLevel
);
557 att
->Complete
= GL_FALSE
;
560 if (texObj
->Target
== GL_TEXTURE_3D
&& att
->Zoffset
>= texImage
->Depth
) {
561 att_incomplete("bad z offset");
562 att
->Complete
= GL_FALSE
;
566 baseFormat
= _mesa_get_format_base_format(texImage
->TexFormat
);
568 if (format
== GL_COLOR
) {
569 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
570 att_incomplete("bad format");
571 att
->Complete
= GL_FALSE
;
574 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
575 att_incomplete("compressed internalformat");
576 att
->Complete
= GL_FALSE
;
580 else if (format
== GL_DEPTH
) {
581 if (baseFormat
== GL_DEPTH_COMPONENT
) {
584 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
585 ctx
->Extensions
.ARB_depth_texture
&&
586 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
590 att
->Complete
= GL_FALSE
;
591 att_incomplete("bad depth format");
596 ASSERT(format
== GL_STENCIL
);
597 if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
598 ctx
->Extensions
.ARB_depth_texture
&&
599 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
603 /* no such thing as stencil-only textures */
604 att_incomplete("illegal stencil texture");
605 att
->Complete
= GL_FALSE
;
610 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
611 const GLenum baseFormat
=
612 _mesa_get_format_base_format(att
->Renderbuffer
->Format
);
614 ASSERT(att
->Renderbuffer
);
615 if (!att
->Renderbuffer
->InternalFormat
||
616 att
->Renderbuffer
->Width
< 1 ||
617 att
->Renderbuffer
->Height
< 1) {
618 att_incomplete("0x0 renderbuffer");
619 att
->Complete
= GL_FALSE
;
622 if (format
== GL_COLOR
) {
623 if (!_mesa_is_legal_color_format(ctx
, baseFormat
)) {
624 att_incomplete("bad renderbuffer color format");
625 att
->Complete
= GL_FALSE
;
629 else if (format
== GL_DEPTH
) {
630 if (baseFormat
== GL_DEPTH_COMPONENT
) {
633 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
634 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
638 att_incomplete("bad renderbuffer depth format");
639 att
->Complete
= GL_FALSE
;
644 assert(format
== GL_STENCIL
);
645 if (baseFormat
== GL_STENCIL_INDEX
) {
648 else if (ctx
->Extensions
.EXT_packed_depth_stencil
&&
649 baseFormat
== GL_DEPTH_STENCIL_EXT
) {
653 att
->Complete
= GL_FALSE
;
654 att_incomplete("bad renderbuffer stencil format");
660 ASSERT(att
->Type
== GL_NONE
);
668 * Test if the given framebuffer object is complete and update its
669 * Status field with the results.
670 * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
671 * driver to make hardware-specific validation/completeness checks.
672 * Also update the framebuffer's Width and Height fields if the
673 * framebuffer is complete.
676 _mesa_test_framebuffer_completeness(struct gl_context
*ctx
,
677 struct gl_framebuffer
*fb
)
680 GLenum intFormat
= GL_NONE
; /* color buffers' internal format */
681 GLuint minWidth
= ~0, minHeight
= ~0, maxWidth
= 0, maxHeight
= 0;
682 GLint numSamples
= -1;
686 assert(_mesa_is_user_fbo(fb
));
688 /* we're changing framebuffer fields here */
689 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
695 /* Start at -2 to more easily loop over all attachment points.
700 for (i
= -2; i
< (GLint
) ctx
->Const
.MaxColorAttachments
; i
++) {
701 struct gl_renderbuffer_attachment
*att
;
706 * XXX for ARB_fbo, only check color buffers that are named by
707 * GL_READ_BUFFER and GL_DRAW_BUFFERi.
710 /* check for attachment completeness
713 att
= &fb
->Attachment
[BUFFER_DEPTH
];
714 test_attachment_completeness(ctx
, GL_DEPTH
, att
);
715 if (!att
->Complete
) {
716 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
717 fbo_incomplete("depth attachment incomplete", -1);
722 att
= &fb
->Attachment
[BUFFER_STENCIL
];
723 test_attachment_completeness(ctx
, GL_STENCIL
, att
);
724 if (!att
->Complete
) {
725 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
726 fbo_incomplete("stencil attachment incomplete", -1);
731 att
= &fb
->Attachment
[BUFFER_COLOR0
+ i
];
732 test_attachment_completeness(ctx
, GL_COLOR
, att
);
733 if (!att
->Complete
) {
734 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT
;
735 fbo_incomplete("color attachment incomplete", i
);
740 /* get width, height, format of the renderbuffer/texture
742 if (att
->Type
== GL_TEXTURE
) {
743 const struct gl_texture_image
*texImg
=
744 _mesa_get_attachment_teximage(att
);
745 minWidth
= MIN2(minWidth
, texImg
->Width
);
746 maxWidth
= MAX2(maxWidth
, texImg
->Width
);
747 minHeight
= MIN2(minHeight
, texImg
->Height
);
748 maxHeight
= MAX2(maxHeight
, texImg
->Height
);
749 f
= texImg
->_BaseFormat
;
750 attFormat
= texImg
->TexFormat
;
752 if (!_mesa_is_legal_color_format(ctx
, f
) &&
753 !is_legal_depth_format(ctx
, f
)) {
754 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
755 fbo_incomplete("texture attachment incomplete", -1);
759 else if (att
->Type
== GL_RENDERBUFFER_EXT
) {
760 minWidth
= MIN2(minWidth
, att
->Renderbuffer
->Width
);
761 maxWidth
= MAX2(minWidth
, att
->Renderbuffer
->Width
);
762 minHeight
= MIN2(minHeight
, att
->Renderbuffer
->Height
);
763 maxHeight
= MAX2(minHeight
, att
->Renderbuffer
->Height
);
764 f
= att
->Renderbuffer
->InternalFormat
;
765 attFormat
= att
->Renderbuffer
->Format
;
769 assert(att
->Type
== GL_NONE
);
773 if (att
->Renderbuffer
&& numSamples
< 0) {
775 numSamples
= att
->Renderbuffer
->NumSamples
;
778 /* check if integer color */
779 fb
->_IntegerColor
= _mesa_is_format_integer_color(attFormat
);
781 /* Error-check width, height, format, samples
783 if (numImages
== 1) {
784 /* save format, num samples */
790 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
791 /* check that width, height, format are same */
792 if (minWidth
!= maxWidth
|| minHeight
!= maxHeight
) {
793 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT
;
794 fbo_incomplete("width or height mismatch", -1);
797 /* check that all color buffers are the same format */
798 if (intFormat
!= GL_NONE
&& f
!= intFormat
) {
799 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT
;
800 fbo_incomplete("format mismatch", -1);
804 if (att
->Renderbuffer
&&
805 att
->Renderbuffer
->NumSamples
!= numSamples
) {
806 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE
;
807 fbo_incomplete("inconsistant number of samples", i
);
812 /* Check that the format is valid. (MESA_FORMAT_NONE means unsupported)
814 if (att
->Type
== GL_RENDERBUFFER
&&
815 att
->Renderbuffer
->Format
== MESA_FORMAT_NONE
) {
816 fb
->_Status
= GL_FRAMEBUFFER_UNSUPPORTED
;
817 fbo_incomplete("unsupported renderbuffer format", i
);
823 if (_mesa_is_desktop_gl(ctx
) && !ctx
->Extensions
.ARB_ES2_compatibility
) {
824 /* Check that all DrawBuffers are present */
825 for (j
= 0; j
< ctx
->Const
.MaxDrawBuffers
; j
++) {
826 if (fb
->ColorDrawBuffer
[j
] != GL_NONE
) {
827 const struct gl_renderbuffer_attachment
*att
828 = _mesa_get_attachment(ctx
, fb
, fb
->ColorDrawBuffer
[j
]);
830 if (att
->Type
== GL_NONE
) {
831 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT
;
832 fbo_incomplete("missing drawbuffer", j
);
838 /* Check that the ReadBuffer is present */
839 if (fb
->ColorReadBuffer
!= GL_NONE
) {
840 const struct gl_renderbuffer_attachment
*att
841 = _mesa_get_attachment(ctx
, fb
, fb
->ColorReadBuffer
);
843 if (att
->Type
== GL_NONE
) {
844 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT
;
845 fbo_incomplete("missing readbuffer", -1);
854 if (numImages
== 0) {
855 fb
->_Status
= GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT
;
856 fbo_incomplete("no attachments", -1);
860 /* Provisionally set status = COMPLETE ... */
861 fb
->_Status
= GL_FRAMEBUFFER_COMPLETE_EXT
;
863 /* ... but the driver may say the FB is incomplete.
864 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
867 if (ctx
->Driver
.ValidateFramebuffer
) {
868 ctx
->Driver
.ValidateFramebuffer(ctx
, fb
);
869 if (fb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
870 fbo_incomplete("driver marked FBO as incomplete", -1);
874 if (fb
->_Status
== GL_FRAMEBUFFER_COMPLETE_EXT
) {
876 * Note that if ARB_framebuffer_object is supported and the attached
877 * renderbuffers/textures are different sizes, the framebuffer
878 * width/height will be set to the smallest width/height.
880 fb
->Width
= minWidth
;
881 fb
->Height
= minHeight
;
883 /* finally, update the visual info for the framebuffer */
884 _mesa_update_framebuffer_visual(ctx
, fb
);
890 _mesa_IsRenderbufferEXT(GLuint renderbuffer
)
892 GET_CURRENT_CONTEXT(ctx
);
893 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
895 struct gl_renderbuffer
*rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
896 if (rb
!= NULL
&& rb
!= &DummyRenderbuffer
)
904 _mesa_BindRenderbufferEXT(GLenum target
, GLuint renderbuffer
)
906 struct gl_renderbuffer
*newRb
;
907 GET_CURRENT_CONTEXT(ctx
);
909 ASSERT_OUTSIDE_BEGIN_END(ctx
);
911 if (target
!= GL_RENDERBUFFER_EXT
) {
912 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindRenderbufferEXT(target)");
916 /* No need to flush here since the render buffer binding has no
917 * effect on rendering state.
921 newRb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
922 if (newRb
== &DummyRenderbuffer
) {
923 /* ID was reserved, but no real renderbuffer object made yet */
926 else if (!newRb
&& ctx
->Extensions
.ARB_framebuffer_object
) {
927 /* All RB IDs must be Gen'd */
928 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindRenderbuffer(buffer)");
933 /* create new renderbuffer object */
934 newRb
= ctx
->Driver
.NewRenderbuffer(ctx
, renderbuffer
);
936 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindRenderbufferEXT");
939 ASSERT(newRb
->AllocStorage
);
940 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, renderbuffer
, newRb
);
941 newRb
->RefCount
= 1; /* referenced by hash table */
948 ASSERT(newRb
!= &DummyRenderbuffer
);
950 _mesa_reference_renderbuffer(&ctx
->CurrentRenderbuffer
, newRb
);
955 * If the given renderbuffer is anywhere attached to the framebuffer, detach
957 * This is used when a renderbuffer object is deleted.
958 * The spec calls for unbinding.
961 detach_renderbuffer(struct gl_context
*ctx
,
962 struct gl_framebuffer
*fb
,
963 struct gl_renderbuffer
*rb
)
966 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
967 if (fb
->Attachment
[i
].Renderbuffer
== rb
) {
968 _mesa_remove_attachment(ctx
, &fb
->Attachment
[i
]);
971 invalidate_framebuffer(fb
);
976 _mesa_DeleteRenderbuffersEXT(GLsizei n
, const GLuint
*renderbuffers
)
979 GET_CURRENT_CONTEXT(ctx
);
981 ASSERT_OUTSIDE_BEGIN_END(ctx
);
982 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
984 for (i
= 0; i
< n
; i
++) {
985 if (renderbuffers
[i
] > 0) {
986 struct gl_renderbuffer
*rb
;
987 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffers
[i
]);
989 /* check if deleting currently bound renderbuffer object */
990 if (rb
== ctx
->CurrentRenderbuffer
) {
992 ASSERT(rb
->RefCount
>= 2);
993 _mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT
, 0);
996 if (_mesa_is_user_fbo(ctx
->DrawBuffer
)) {
997 detach_renderbuffer(ctx
, ctx
->DrawBuffer
, rb
);
999 if (_mesa_is_user_fbo(ctx
->ReadBuffer
)
1000 && ctx
->ReadBuffer
!= ctx
->DrawBuffer
) {
1001 detach_renderbuffer(ctx
, ctx
->ReadBuffer
, rb
);
1004 /* Remove from hash table immediately, to free the ID.
1005 * But the object will not be freed until it's no longer
1006 * referenced anywhere else.
1008 _mesa_HashRemove(ctx
->Shared
->RenderBuffers
, renderbuffers
[i
]);
1010 if (rb
!= &DummyRenderbuffer
) {
1011 /* no longer referenced by hash table */
1012 _mesa_reference_renderbuffer(&rb
, NULL
);
1021 _mesa_GenRenderbuffersEXT(GLsizei n
, GLuint
*renderbuffers
)
1023 GET_CURRENT_CONTEXT(ctx
);
1027 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1030 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenRenderbuffersEXT(n)");
1037 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->RenderBuffers
, n
);
1039 for (i
= 0; i
< n
; i
++) {
1040 GLuint name
= first
+ i
;
1041 renderbuffers
[i
] = name
;
1042 /* insert dummy placeholder into hash table */
1043 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1044 _mesa_HashInsert(ctx
->Shared
->RenderBuffers
, name
, &DummyRenderbuffer
);
1045 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1051 * Given an internal format token for a render buffer, return the
1052 * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
1053 * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,
1054 * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).
1056 * This is similar to _mesa_base_tex_format() but the set of valid
1057 * internal formats is different.
1059 * Note that even if a format is determined to be legal here, validation
1060 * of the FBO may fail if the format is not supported by the driver/GPU.
1062 * \param internalFormat as passed to glRenderbufferStorage()
1063 * \return the base internal format, or 0 if internalFormat is illegal
1066 _mesa_base_fbo_format(struct gl_context
*ctx
, GLenum internalFormat
)
1069 * Notes: some formats such as alpha, luminance, etc. were added
1070 * with GL_ARB_framebuffer_object.
1072 switch (internalFormat
) {
1078 return ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1082 case GL_LUMINANCE12
:
1083 case GL_LUMINANCE16
:
1084 return ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
1085 case GL_LUMINANCE_ALPHA
:
1086 case GL_LUMINANCE4_ALPHA4
:
1087 case GL_LUMINANCE6_ALPHA2
:
1088 case GL_LUMINANCE8_ALPHA8
:
1089 case GL_LUMINANCE12_ALPHA4
:
1090 case GL_LUMINANCE12_ALPHA12
:
1091 case GL_LUMINANCE16_ALPHA16
:
1092 return ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
1096 case GL_INTENSITY12
:
1097 case GL_INTENSITY16
:
1098 return ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
1117 case GL_SRGB8_ALPHA8_EXT
:
1119 case GL_STENCIL_INDEX
:
1120 case GL_STENCIL_INDEX1_EXT
:
1121 case GL_STENCIL_INDEX4_EXT
:
1122 case GL_STENCIL_INDEX8_EXT
:
1123 case GL_STENCIL_INDEX16_EXT
:
1124 return GL_STENCIL_INDEX
;
1125 case GL_DEPTH_COMPONENT
:
1126 case GL_DEPTH_COMPONENT16
:
1127 case GL_DEPTH_COMPONENT24
:
1128 case GL_DEPTH_COMPONENT32
:
1129 return GL_DEPTH_COMPONENT
;
1130 case GL_DEPTH_STENCIL_EXT
:
1131 case GL_DEPTH24_STENCIL8_EXT
:
1132 if (ctx
->Extensions
.EXT_packed_depth_stencil
)
1133 return GL_DEPTH_STENCIL_EXT
;
1136 case GL_DEPTH_COMPONENT32F
:
1137 if (ctx
->Extensions
.ARB_depth_buffer_float
)
1138 return GL_DEPTH_COMPONENT
;
1141 case GL_DEPTH32F_STENCIL8
:
1142 if (ctx
->Extensions
.ARB_depth_buffer_float
)
1143 return GL_DEPTH_STENCIL
;
1149 return ctx
->Extensions
.ARB_texture_rg
? GL_RED
: 0;
1153 return ctx
->Extensions
.ARB_texture_rg
? GL_RG
: 0;
1154 /* signed normalized texture formats */
1158 return ctx
->Extensions
.EXT_texture_snorm
? GL_RED
: 0;
1162 return ctx
->Extensions
.EXT_texture_snorm
? GL_RG
: 0;
1165 case GL_RGB16_SNORM
:
1166 return ctx
->Extensions
.EXT_texture_snorm
? GL_RGB
: 0;
1168 case GL_RGBA8_SNORM
:
1169 case GL_RGBA16_SNORM
:
1170 return ctx
->Extensions
.EXT_texture_snorm
? GL_RGBA
: 0;
1171 case GL_ALPHA_SNORM
:
1172 case GL_ALPHA8_SNORM
:
1173 case GL_ALPHA16_SNORM
:
1174 return ctx
->Extensions
.EXT_texture_snorm
&&
1175 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1176 case GL_LUMINANCE_SNORM
:
1177 case GL_LUMINANCE8_SNORM
:
1178 case GL_LUMINANCE16_SNORM
:
1179 return ctx
->Extensions
.EXT_texture_snorm
&&
1180 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
1181 case GL_LUMINANCE_ALPHA_SNORM
:
1182 case GL_LUMINANCE8_ALPHA8_SNORM
:
1183 case GL_LUMINANCE16_ALPHA16_SNORM
:
1184 return ctx
->Extensions
.EXT_texture_snorm
&&
1185 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
1186 case GL_INTENSITY_SNORM
:
1187 case GL_INTENSITY8_SNORM
:
1188 case GL_INTENSITY16_SNORM
:
1189 return ctx
->Extensions
.EXT_texture_snorm
&&
1190 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
1193 return ctx
->Extensions
.ARB_texture_rg
&&
1194 ctx
->Extensions
.ARB_texture_float
? GL_RED
: 0;
1197 return ctx
->Extensions
.ARB_texture_rg
&&
1198 ctx
->Extensions
.ARB_texture_float
? GL_RG
: 0;
1201 return ctx
->Extensions
.ARB_texture_float
? GL_RGB
: 0;
1204 return ctx
->Extensions
.ARB_texture_float
? GL_RGBA
: 0;
1205 case GL_ALPHA16F_ARB
:
1206 case GL_ALPHA32F_ARB
:
1207 return ctx
->Extensions
.ARB_texture_float
&&
1208 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1209 case GL_LUMINANCE16F_ARB
:
1210 case GL_LUMINANCE32F_ARB
:
1211 return ctx
->Extensions
.ARB_texture_float
&&
1212 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
1213 case GL_LUMINANCE_ALPHA16F_ARB
:
1214 case GL_LUMINANCE_ALPHA32F_ARB
:
1215 return ctx
->Extensions
.ARB_texture_float
&&
1216 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
1217 case GL_INTENSITY16F_ARB
:
1218 case GL_INTENSITY32F_ARB
:
1219 return ctx
->Extensions
.ARB_texture_float
&&
1220 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
1222 return ctx
->Extensions
.EXT_texture_shared_exponent
? GL_RGB
: 0;
1223 case GL_R11F_G11F_B10F
:
1224 return ctx
->Extensions
.EXT_packed_float
? GL_RGB
: 0;
1226 case GL_RGBA8UI_EXT
:
1227 case GL_RGBA16UI_EXT
:
1228 case GL_RGBA32UI_EXT
:
1230 case GL_RGBA16I_EXT
:
1231 case GL_RGBA32I_EXT
:
1232 return ctx
->Version
>= 30 ||
1233 ctx
->Extensions
.EXT_texture_integer
? GL_RGBA
: 0;
1236 case GL_RGB16UI_EXT
:
1237 case GL_RGB32UI_EXT
:
1241 return ctx
->Version
>= 30 ||
1242 ctx
->Extensions
.EXT_texture_integer
? GL_RGB
: 0;
1250 return ctx
->Version
>= 30 ||
1251 (ctx
->Extensions
.ARB_texture_rg
&&
1252 ctx
->Extensions
.EXT_texture_integer
) ? GL_RED
: 0;
1260 return ctx
->Version
>= 30 ||
1261 (ctx
->Extensions
.ARB_texture_rg
&&
1262 ctx
->Extensions
.EXT_texture_integer
) ? GL_RG
: 0;
1264 case GL_INTENSITY8I_EXT
:
1265 case GL_INTENSITY8UI_EXT
:
1266 case GL_INTENSITY16I_EXT
:
1267 case GL_INTENSITY16UI_EXT
:
1268 case GL_INTENSITY32I_EXT
:
1269 case GL_INTENSITY32UI_EXT
:
1270 return ctx
->Extensions
.EXT_texture_integer
&&
1271 ctx
->Extensions
.ARB_framebuffer_object
? GL_INTENSITY
: 0;
1273 case GL_LUMINANCE8I_EXT
:
1274 case GL_LUMINANCE8UI_EXT
:
1275 case GL_LUMINANCE16I_EXT
:
1276 case GL_LUMINANCE16UI_EXT
:
1277 case GL_LUMINANCE32I_EXT
:
1278 case GL_LUMINANCE32UI_EXT
:
1279 return ctx
->Extensions
.EXT_texture_integer
&&
1280 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE
: 0;
1282 case GL_LUMINANCE_ALPHA8I_EXT
:
1283 case GL_LUMINANCE_ALPHA8UI_EXT
:
1284 case GL_LUMINANCE_ALPHA16I_EXT
:
1285 case GL_LUMINANCE_ALPHA16UI_EXT
:
1286 case GL_LUMINANCE_ALPHA32I_EXT
:
1287 case GL_LUMINANCE_ALPHA32UI_EXT
:
1288 return ctx
->Extensions
.EXT_texture_integer
&&
1289 ctx
->Extensions
.ARB_framebuffer_object
? GL_LUMINANCE_ALPHA
: 0;
1291 case GL_ALPHA8I_EXT
:
1292 case GL_ALPHA8UI_EXT
:
1293 case GL_ALPHA16I_EXT
:
1294 case GL_ALPHA16UI_EXT
:
1295 case GL_ALPHA32I_EXT
:
1296 case GL_ALPHA32UI_EXT
:
1297 return ctx
->Extensions
.EXT_texture_integer
&&
1298 ctx
->Extensions
.ARB_framebuffer_object
? GL_ALPHA
: 0;
1301 return ctx
->Extensions
.ARB_texture_rgb10_a2ui
? GL_RGBA
: 0;
1304 return ctx
->Extensions
.ARB_ES2_compatibility
? GL_RGB
: 0;
1312 * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk().
1315 invalidate_rb(GLuint key
, void *data
, void *userData
)
1317 struct gl_framebuffer
*fb
= (struct gl_framebuffer
*) data
;
1318 struct gl_renderbuffer
*rb
= (struct gl_renderbuffer
*) userData
;
1320 /* If this is a user-created FBO */
1321 if (_mesa_is_user_fbo(fb
)) {
1323 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1324 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
1325 if (att
->Type
== GL_RENDERBUFFER
&&
1326 att
->Renderbuffer
== rb
) {
1327 /* Mark fb status as indeterminate to force re-validation */
1336 /** sentinal value, see below */
1337 #define NO_SAMPLES 1000
1341 * Helper function used by _mesa_RenderbufferStorageEXT() and
1342 * _mesa_RenderbufferStorageMultisample().
1343 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorageEXT().
1346 renderbuffer_storage(GLenum target
, GLenum internalFormat
,
1347 GLsizei width
, GLsizei height
, GLsizei samples
)
1349 const char *func
= samples
== NO_SAMPLES
?
1350 "glRenderbufferStorage" : "RenderbufferStorageMultisample";
1351 struct gl_renderbuffer
*rb
;
1353 GET_CURRENT_CONTEXT(ctx
);
1355 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1357 if (target
!= GL_RENDERBUFFER_EXT
) {
1358 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", func
);
1362 baseFormat
= _mesa_base_fbo_format(ctx
, internalFormat
);
1363 if (baseFormat
== 0) {
1364 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(internalFormat)", func
);
1368 if (width
< 0 || width
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
1369 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(width)", func
);
1373 if (height
< 0 || height
> (GLsizei
) ctx
->Const
.MaxRenderbufferSize
) {
1374 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(height)", func
);
1378 if (samples
== NO_SAMPLES
) {
1379 /* NumSamples == 0 indicates non-multisampling */
1382 else if (samples
> (GLsizei
) ctx
->Const
.MaxSamples
) {
1383 /* note: driver may choose to use more samples than what's requested */
1384 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(samples)", func
);
1388 rb
= ctx
->CurrentRenderbuffer
;
1390 _mesa_error(ctx
, GL_INVALID_OPERATION
, "%s", func
);
1394 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1396 if (rb
->InternalFormat
== internalFormat
&&
1397 rb
->Width
== (GLuint
) width
&&
1398 rb
->Height
== (GLuint
) height
&&
1399 rb
->NumSamples
== samples
) {
1400 /* no change in allocation needed */
1404 /* These MUST get set by the AllocStorage func */
1405 rb
->Format
= MESA_FORMAT_NONE
;
1406 rb
->NumSamples
= samples
;
1408 /* Now allocate the storage */
1409 ASSERT(rb
->AllocStorage
);
1410 if (rb
->AllocStorage(ctx
, rb
, internalFormat
, width
, height
)) {
1411 /* No error - check/set fields now */
1412 /* If rb->Format == MESA_FORMAT_NONE, the format is unsupported. */
1413 assert(rb
->Width
== (GLuint
) width
);
1414 assert(rb
->Height
== (GLuint
) height
);
1415 rb
->InternalFormat
= internalFormat
;
1416 rb
->_BaseFormat
= baseFormat
;
1417 assert(rb
->_BaseFormat
!= 0);
1420 /* Probably ran out of memory - clear the fields */
1423 rb
->Format
= MESA_FORMAT_NONE
;
1424 rb
->InternalFormat
= GL_NONE
;
1425 rb
->_BaseFormat
= GL_NONE
;
1429 /* Invalidate the framebuffers the renderbuffer is attached in. */
1430 if (rb
->AttachedAnytime
) {
1431 _mesa_HashWalk(ctx
->Shared
->FrameBuffers
, invalidate_rb
, rb
);
1436 #if FEATURE_OES_EGL_image
1438 _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target
, GLeglImageOES image
)
1440 struct gl_renderbuffer
*rb
;
1441 GET_CURRENT_CONTEXT(ctx
);
1442 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1444 if (!ctx
->Extensions
.OES_EGL_image
) {
1445 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1446 "glEGLImageTargetRenderbufferStorageOES(unsupported)");
1450 if (target
!= GL_RENDERBUFFER
) {
1451 _mesa_error(ctx
, GL_INVALID_ENUM
,
1452 "EGLImageTargetRenderbufferStorageOES");
1456 rb
= ctx
->CurrentRenderbuffer
;
1458 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1459 "EGLImageTargetRenderbufferStorageOES");
1463 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1465 ctx
->Driver
.EGLImageTargetRenderbufferStorage(ctx
, rb
, image
);
1471 * Helper function for _mesa_GetRenderbufferParameterivEXT() and
1472 * _mesa_GetFramebufferAttachmentParameterivEXT()
1473 * We have to be careful to respect the base format. For example, if a
1474 * renderbuffer/texture was created with internalFormat=GL_RGB but the
1475 * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
1476 * we need to return zero.
1479 get_component_bits(GLenum pname
, GLenum baseFormat
, gl_format format
)
1481 if (_mesa_base_format_has_channel(baseFormat
, pname
))
1482 return _mesa_get_format_bits(format
, pname
);
1490 _mesa_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
1491 GLsizei width
, GLsizei height
)
1493 /* GL_ARB_fbo says calling this function is equivalent to calling
1494 * glRenderbufferStorageMultisample() with samples=0. We pass in
1495 * a token value here just for error reporting purposes.
1497 renderbuffer_storage(target
, internalFormat
, width
, height
, NO_SAMPLES
);
1502 _mesa_RenderbufferStorageMultisample(GLenum target
, GLsizei samples
,
1503 GLenum internalFormat
,
1504 GLsizei width
, GLsizei height
)
1506 renderbuffer_storage(target
, internalFormat
, width
, height
, samples
);
1511 * OpenGL ES version of glRenderBufferStorage.
1514 _es_RenderbufferStorageEXT(GLenum target
, GLenum internalFormat
,
1515 GLsizei width
, GLsizei height
)
1517 switch (internalFormat
) {
1519 /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
1520 /* choose a closest format */
1521 internalFormat
= GL_RGB5
;
1527 renderbuffer_storage(target
, internalFormat
, width
, height
, 0);
1532 _mesa_GetRenderbufferParameterivEXT(GLenum target
, GLenum pname
, GLint
*params
)
1534 struct gl_renderbuffer
*rb
;
1535 GET_CURRENT_CONTEXT(ctx
);
1537 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1539 if (target
!= GL_RENDERBUFFER_EXT
) {
1540 _mesa_error(ctx
, GL_INVALID_ENUM
,
1541 "glGetRenderbufferParameterivEXT(target)");
1545 rb
= ctx
->CurrentRenderbuffer
;
1547 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1548 "glGetRenderbufferParameterivEXT");
1552 /* No need to flush here since we're just quering state which is
1553 * not effected by rendering.
1557 case GL_RENDERBUFFER_WIDTH_EXT
:
1558 *params
= rb
->Width
;
1560 case GL_RENDERBUFFER_HEIGHT_EXT
:
1561 *params
= rb
->Height
;
1563 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT
:
1564 *params
= rb
->InternalFormat
;
1566 case GL_RENDERBUFFER_RED_SIZE_EXT
:
1567 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
1568 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
1569 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
1570 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
1571 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
1572 *params
= get_component_bits(pname
, rb
->_BaseFormat
, rb
->Format
);
1574 case GL_RENDERBUFFER_SAMPLES
:
1575 if (ctx
->Extensions
.ARB_framebuffer_object
) {
1576 *params
= rb
->NumSamples
;
1581 _mesa_error(ctx
, GL_INVALID_ENUM
,
1582 "glGetRenderbufferParameterivEXT(target)");
1588 GLboolean GLAPIENTRY
1589 _mesa_IsFramebufferEXT(GLuint framebuffer
)
1591 GET_CURRENT_CONTEXT(ctx
);
1592 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, GL_FALSE
);
1594 struct gl_framebuffer
*rb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
1595 if (rb
!= NULL
&& rb
!= &DummyFramebuffer
)
1603 * Check if any of the attachments of the given framebuffer are textures
1604 * (render to texture). Call ctx->Driver.RenderTexture() for such
1608 check_begin_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
1611 ASSERT(ctx
->Driver
.RenderTexture
);
1613 if (_mesa_is_winsys_fbo(fb
))
1614 return; /* can't render to texture with winsys framebuffers */
1616 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1617 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
1618 if (att
->Texture
&& _mesa_get_attachment_teximage(att
)) {
1619 ctx
->Driver
.RenderTexture(ctx
, fb
, att
);
1626 * Examine all the framebuffer's attachments to see if any are textures.
1627 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
1628 * notify the device driver that the texture image may have changed.
1631 check_end_texture_render(struct gl_context
*ctx
, struct gl_framebuffer
*fb
)
1633 if (_mesa_is_winsys_fbo(fb
))
1634 return; /* can't render to texture with winsys framebuffers */
1636 if (ctx
->Driver
.FinishRenderTexture
) {
1638 for (i
= 0; i
< BUFFER_COUNT
; i
++) {
1639 struct gl_renderbuffer_attachment
*att
= fb
->Attachment
+ i
;
1640 if (att
->Texture
&& att
->Renderbuffer
) {
1641 ctx
->Driver
.FinishRenderTexture(ctx
, att
);
1649 _mesa_BindFramebufferEXT(GLenum target
, GLuint framebuffer
)
1651 struct gl_framebuffer
*newDrawFb
, *newReadFb
;
1652 struct gl_framebuffer
*oldDrawFb
, *oldReadFb
;
1653 GLboolean bindReadBuf
, bindDrawBuf
;
1654 GET_CURRENT_CONTEXT(ctx
);
1657 if (ctx
->Extensions
.ARB_framebuffer_object
) {
1658 ASSERT(ctx
->Extensions
.EXT_framebuffer_object
);
1659 ASSERT(ctx
->Extensions
.EXT_framebuffer_blit
);
1663 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1665 if (!ctx
->Extensions
.EXT_framebuffer_object
) {
1666 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1667 "glBindFramebufferEXT(unsupported)");
1672 #if FEATURE_EXT_framebuffer_blit
1673 case GL_DRAW_FRAMEBUFFER_EXT
:
1674 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1675 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
1678 bindDrawBuf
= GL_TRUE
;
1679 bindReadBuf
= GL_FALSE
;
1681 case GL_READ_FRAMEBUFFER_EXT
:
1682 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
1683 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
1686 bindDrawBuf
= GL_FALSE
;
1687 bindReadBuf
= GL_TRUE
;
1690 case GL_FRAMEBUFFER_EXT
:
1691 bindDrawBuf
= GL_TRUE
;
1692 bindReadBuf
= GL_TRUE
;
1695 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBindFramebufferEXT(target)");
1700 /* Binding a user-created framebuffer object */
1701 newDrawFb
= _mesa_lookup_framebuffer(ctx
, framebuffer
);
1702 if (newDrawFb
== &DummyFramebuffer
) {
1703 /* ID was reserved, but no real framebuffer object made yet */
1706 else if (!newDrawFb
&& ctx
->Extensions
.ARB_framebuffer_object
) {
1707 /* All FBO IDs must be Gen'd */
1708 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBindFramebuffer(buffer)");
1713 /* create new framebuffer object */
1714 newDrawFb
= ctx
->Driver
.NewFramebuffer(ctx
, framebuffer
);
1716 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glBindFramebufferEXT");
1719 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, framebuffer
, newDrawFb
);
1721 newReadFb
= newDrawFb
;
1724 /* Binding the window system framebuffer (which was originally set
1725 * with MakeCurrent).
1727 newDrawFb
= ctx
->WinSysDrawBuffer
;
1728 newReadFb
= ctx
->WinSysReadBuffer
;
1732 ASSERT(newDrawFb
!= &DummyFramebuffer
);
1734 /* save pointers to current/old framebuffers */
1735 oldDrawFb
= ctx
->DrawBuffer
;
1736 oldReadFb
= ctx
->ReadBuffer
;
1738 /* check if really changing bindings */
1739 if (oldDrawFb
== newDrawFb
)
1740 bindDrawBuf
= GL_FALSE
;
1741 if (oldReadFb
== newReadFb
)
1742 bindReadBuf
= GL_FALSE
;
1745 * OK, now bind the new Draw/Read framebuffers, if they're changing.
1747 * We also check if we're beginning and/or ending render-to-texture.
1748 * When a framebuffer with texture attachments is unbound, call
1749 * ctx->Driver.FinishRenderTexture().
1750 * When a framebuffer with texture attachments is bound, call
1751 * ctx->Driver.RenderTexture().
1753 * Note that if the ReadBuffer has texture attachments we don't consider
1754 * that a render-to-texture case.
1757 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1759 /* check if old readbuffer was render-to-texture */
1760 check_end_texture_render(ctx
, oldReadFb
);
1762 _mesa_reference_framebuffer(&ctx
->ReadBuffer
, newReadFb
);
1766 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1768 /* check if old framebuffer had any texture attachments */
1770 check_end_texture_render(ctx
, oldDrawFb
);
1772 /* check if newly bound framebuffer has any texture attachments */
1773 check_begin_texture_render(ctx
, newDrawFb
);
1775 _mesa_reference_framebuffer(&ctx
->DrawBuffer
, newDrawFb
);
1778 if ((bindDrawBuf
|| bindReadBuf
) && ctx
->Driver
.BindFramebuffer
) {
1779 ctx
->Driver
.BindFramebuffer(ctx
, target
, newDrawFb
, newReadFb
);
1785 _mesa_DeleteFramebuffersEXT(GLsizei n
, const GLuint
*framebuffers
)
1788 GET_CURRENT_CONTEXT(ctx
);
1790 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1791 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
1793 for (i
= 0; i
< n
; i
++) {
1794 if (framebuffers
[i
] > 0) {
1795 struct gl_framebuffer
*fb
;
1796 fb
= _mesa_lookup_framebuffer(ctx
, framebuffers
[i
]);
1798 ASSERT(fb
== &DummyFramebuffer
|| fb
->Name
== framebuffers
[i
]);
1800 /* check if deleting currently bound framebuffer object */
1801 if (ctx
->Extensions
.EXT_framebuffer_blit
) {
1802 /* separate draw/read binding points */
1803 if (fb
== ctx
->DrawBuffer
) {
1805 ASSERT(fb
->RefCount
>= 2);
1806 _mesa_BindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT
, 0);
1808 if (fb
== ctx
->ReadBuffer
) {
1810 ASSERT(fb
->RefCount
>= 2);
1811 _mesa_BindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT
, 0);
1815 /* only one binding point for read/draw buffers */
1816 if (fb
== ctx
->DrawBuffer
|| fb
== ctx
->ReadBuffer
) {
1818 ASSERT(fb
->RefCount
>= 2);
1819 _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT
, 0);
1823 /* remove from hash table immediately, to free the ID */
1824 _mesa_HashRemove(ctx
->Shared
->FrameBuffers
, framebuffers
[i
]);
1826 if (fb
!= &DummyFramebuffer
) {
1827 /* But the object will not be freed until it's no longer
1828 * bound in any context.
1830 _mesa_reference_framebuffer(&fb
, NULL
);
1839 _mesa_GenFramebuffersEXT(GLsizei n
, GLuint
*framebuffers
)
1841 GET_CURRENT_CONTEXT(ctx
);
1845 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1848 _mesa_error(ctx
, GL_INVALID_VALUE
, "glGenFramebuffersEXT(n)");
1855 first
= _mesa_HashFindFreeKeyBlock(ctx
->Shared
->FrameBuffers
, n
);
1857 for (i
= 0; i
< n
; i
++) {
1858 GLuint name
= first
+ i
;
1859 framebuffers
[i
] = name
;
1860 /* insert dummy placeholder into hash table */
1861 _glthread_LOCK_MUTEX(ctx
->Shared
->Mutex
);
1862 _mesa_HashInsert(ctx
->Shared
->FrameBuffers
, name
, &DummyFramebuffer
);
1863 _glthread_UNLOCK_MUTEX(ctx
->Shared
->Mutex
);
1870 _mesa_CheckFramebufferStatusEXT(GLenum target
)
1872 struct gl_framebuffer
*buffer
;
1873 GET_CURRENT_CONTEXT(ctx
);
1875 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
1877 buffer
= get_framebuffer_target(ctx
, target
);
1879 _mesa_error(ctx
, GL_INVALID_ENUM
, "glCheckFramebufferStatus(target)");
1883 if (_mesa_is_winsys_fbo(buffer
)) {
1884 /* The window system / default framebuffer is always complete */
1885 return GL_FRAMEBUFFER_COMPLETE_EXT
;
1888 /* No need to flush here */
1890 if (buffer
->_Status
!= GL_FRAMEBUFFER_COMPLETE
) {
1891 _mesa_test_framebuffer_completeness(ctx
, buffer
);
1894 return buffer
->_Status
;
1899 * Replicate the src attachment point. Used by framebuffer_texture() when
1900 * the same texture is attached at GL_DEPTH_ATTACHMENT and
1901 * GL_STENCIL_ATTACHMENT.
1904 reuse_framebuffer_texture_attachment(struct gl_framebuffer
*fb
,
1905 gl_buffer_index dst
,
1906 gl_buffer_index src
)
1908 struct gl_renderbuffer_attachment
*dst_att
= &fb
->Attachment
[dst
];
1909 struct gl_renderbuffer_attachment
*src_att
= &fb
->Attachment
[src
];
1911 assert(src_att
->Texture
!= NULL
);
1912 assert(src_att
->Renderbuffer
!= NULL
);
1914 _mesa_reference_texobj(&dst_att
->Texture
, src_att
->Texture
);
1915 _mesa_reference_renderbuffer(&dst_att
->Renderbuffer
, src_att
->Renderbuffer
);
1916 dst_att
->Type
= src_att
->Type
;
1917 dst_att
->Complete
= src_att
->Complete
;
1918 dst_att
->TextureLevel
= src_att
->TextureLevel
;
1919 dst_att
->Zoffset
= src_att
->Zoffset
;
1924 * Common code called by glFramebufferTexture1D/2D/3DEXT() and
1925 * glFramebufferTextureLayerEXT().
1926 * Note: glFramebufferTextureLayerEXT() has no textarget parameter so we'll
1927 * get textarget=0 in that case.
1930 framebuffer_texture(struct gl_context
*ctx
, const char *caller
, GLenum target
,
1931 GLenum attachment
, GLenum textarget
, GLuint texture
,
1932 GLint level
, GLint zoffset
)
1934 struct gl_renderbuffer_attachment
*att
;
1935 struct gl_texture_object
*texObj
= NULL
;
1936 struct gl_framebuffer
*fb
;
1937 GLenum maxLevelsTarget
;
1939 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1941 fb
= get_framebuffer_target(ctx
, target
);
1943 _mesa_error(ctx
, GL_INVALID_ENUM
,
1944 "glFramebufferTexture%sEXT(target=0x%x)", caller
, target
);
1948 /* check framebuffer binding */
1949 if (_mesa_is_winsys_fbo(fb
)) {
1950 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1951 "glFramebufferTexture%sEXT", caller
);
1955 /* The textarget, level, and zoffset parameters are only validated if
1956 * texture is non-zero.
1959 GLboolean err
= GL_TRUE
;
1961 texObj
= _mesa_lookup_texture(ctx
, texture
);
1962 if (texObj
!= NULL
) {
1963 if (textarget
== 0) {
1964 /* If textarget == 0 it means we're being called by
1965 * glFramebufferTextureLayer() and textarget is not used.
1966 * The only legal texture types for that function are 3D and
1967 * 1D/2D arrays textures.
1969 err
= (texObj
->Target
!= GL_TEXTURE_3D
) &&
1970 (texObj
->Target
!= GL_TEXTURE_1D_ARRAY_EXT
) &&
1971 (texObj
->Target
!= GL_TEXTURE_2D_ARRAY_EXT
);
1974 /* Make sure textarget is consistent with the texture's type */
1975 err
= (texObj
->Target
== GL_TEXTURE_CUBE_MAP
)
1976 ? !_mesa_is_cube_face(textarget
)
1977 : (texObj
->Target
!= textarget
);
1981 /* can't render to a non-existant texture */
1982 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1983 "glFramebufferTexture%sEXT(non existant texture)",
1989 _mesa_error(ctx
, GL_INVALID_OPERATION
,
1990 "glFramebufferTexture%sEXT(texture target mismatch)",
1995 if (texObj
->Target
== GL_TEXTURE_3D
) {
1996 const GLint maxSize
= 1 << (ctx
->Const
.Max3DTextureLevels
- 1);
1997 if (zoffset
< 0 || zoffset
>= maxSize
) {
1998 _mesa_error(ctx
, GL_INVALID_VALUE
,
1999 "glFramebufferTexture%sEXT(zoffset)", caller
);
2003 else if ((texObj
->Target
== GL_TEXTURE_1D_ARRAY_EXT
) ||
2004 (texObj
->Target
== GL_TEXTURE_2D_ARRAY_EXT
)) {
2005 if (zoffset
< 0 || zoffset
>= ctx
->Const
.MaxArrayTextureLayers
) {
2006 _mesa_error(ctx
, GL_INVALID_VALUE
,
2007 "glFramebufferTexture%sEXT(layer)", caller
);
2012 maxLevelsTarget
= textarget
? textarget
: texObj
->Target
;
2014 (level
>= _mesa_max_texture_levels(ctx
, maxLevelsTarget
))) {
2015 _mesa_error(ctx
, GL_INVALID_VALUE
,
2016 "glFramebufferTexture%sEXT(level)", caller
);
2021 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
2023 _mesa_error(ctx
, GL_INVALID_ENUM
,
2024 "glFramebufferTexture%sEXT(attachment)", caller
);
2028 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2030 _glthread_LOCK_MUTEX(fb
->Mutex
);
2032 if (attachment
== GL_DEPTH_ATTACHMENT
&&
2033 texObj
== fb
->Attachment
[BUFFER_STENCIL
].Texture
&&
2034 level
== fb
->Attachment
[BUFFER_STENCIL
].TextureLevel
&&
2035 _mesa_tex_target_to_face(textarget
) ==
2036 fb
->Attachment
[BUFFER_STENCIL
].CubeMapFace
&&
2037 zoffset
== fb
->Attachment
[BUFFER_STENCIL
].Zoffset
) {
2038 /* The texture object is already attached to the stencil attachment
2039 * point. Don't create a new renderbuffer; just reuse the stencil
2040 * attachment's. This is required to prevent a GL error in
2041 * glGetFramebufferAttachmentParameteriv(GL_DEPTH_STENCIL).
2043 reuse_framebuffer_texture_attachment(fb
, BUFFER_DEPTH
,
2045 } else if (attachment
== GL_STENCIL_ATTACHMENT
&&
2046 texObj
== fb
->Attachment
[BUFFER_DEPTH
].Texture
&&
2047 level
== fb
->Attachment
[BUFFER_DEPTH
].TextureLevel
&&
2048 _mesa_tex_target_to_face(textarget
) ==
2049 fb
->Attachment
[BUFFER_DEPTH
].CubeMapFace
&&
2050 zoffset
== fb
->Attachment
[BUFFER_DEPTH
].Zoffset
) {
2051 /* As above, but with depth and stencil transposed. */
2052 reuse_framebuffer_texture_attachment(fb
, BUFFER_STENCIL
,
2055 _mesa_set_texture_attachment(ctx
, fb
, att
, texObj
, textarget
,
2057 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
2058 /* Above we created a new renderbuffer and attached it to the
2059 * depth attachment point. Now attach it to the stencil attachment
2062 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
2063 reuse_framebuffer_texture_attachment(fb
,BUFFER_STENCIL
,
2068 /* Set the render-to-texture flag. We'll check this flag in
2069 * glTexImage() and friends to determine if we need to revalidate
2070 * any FBOs that might be rendering into this texture.
2071 * This flag never gets cleared since it's non-trivial to determine
2072 * when all FBOs might be done rendering to this texture. That's OK
2073 * though since it's uncommon to render to a texture then repeatedly
2074 * call glTexImage() to change images in the texture.
2076 texObj
->_RenderToTexture
= GL_TRUE
;
2079 _mesa_remove_attachment(ctx
, att
);
2080 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
2081 assert(att
== &fb
->Attachment
[BUFFER_DEPTH
]);
2082 _mesa_remove_attachment(ctx
, &fb
->Attachment
[BUFFER_STENCIL
]);
2086 invalidate_framebuffer(fb
);
2088 _glthread_UNLOCK_MUTEX(fb
->Mutex
);
2094 _mesa_FramebufferTexture1DEXT(GLenum target
, GLenum attachment
,
2095 GLenum textarget
, GLuint texture
, GLint level
)
2097 GET_CURRENT_CONTEXT(ctx
);
2102 switch (textarget
) {
2106 case GL_TEXTURE_1D_ARRAY
:
2107 error
= !ctx
->Extensions
.EXT_texture_array
;
2114 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2115 "glFramebufferTexture1DEXT(textarget=%s)",
2116 _mesa_lookup_enum_by_nr(textarget
));
2121 framebuffer_texture(ctx
, "1D", target
, attachment
, textarget
, texture
,
2127 _mesa_FramebufferTexture2DEXT(GLenum target
, GLenum attachment
,
2128 GLenum textarget
, GLuint texture
, GLint level
)
2130 GET_CURRENT_CONTEXT(ctx
);
2135 switch (textarget
) {
2139 case GL_TEXTURE_RECTANGLE
:
2140 error
= !ctx
->Extensions
.NV_texture_rectangle
;
2142 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
2143 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
2144 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
2145 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
2146 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
2147 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
2148 error
= !ctx
->Extensions
.ARB_texture_cube_map
;
2150 case GL_TEXTURE_2D_ARRAY
:
2151 error
= !ctx
->Extensions
.EXT_texture_array
;
2158 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2159 "glFramebufferTexture2DEXT(textarget=%s)",
2160 _mesa_lookup_enum_by_nr(textarget
));
2165 framebuffer_texture(ctx
, "2D", target
, attachment
, textarget
, texture
,
2171 _mesa_FramebufferTexture3DEXT(GLenum target
, GLenum attachment
,
2172 GLenum textarget
, GLuint texture
,
2173 GLint level
, GLint zoffset
)
2175 GET_CURRENT_CONTEXT(ctx
);
2177 if ((texture
!= 0) && (textarget
!= GL_TEXTURE_3D
)) {
2178 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2179 "glFramebufferTexture3DEXT(textarget)");
2183 framebuffer_texture(ctx
, "3D", target
, attachment
, textarget
, texture
,
2189 _mesa_FramebufferTextureLayerEXT(GLenum target
, GLenum attachment
,
2190 GLuint texture
, GLint level
, GLint layer
)
2192 GET_CURRENT_CONTEXT(ctx
);
2194 framebuffer_texture(ctx
, "Layer", target
, attachment
, 0, texture
,
2200 _mesa_FramebufferRenderbufferEXT(GLenum target
, GLenum attachment
,
2201 GLenum renderbufferTarget
,
2202 GLuint renderbuffer
)
2204 struct gl_renderbuffer_attachment
*att
;
2205 struct gl_framebuffer
*fb
;
2206 struct gl_renderbuffer
*rb
;
2207 GET_CURRENT_CONTEXT(ctx
);
2209 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2211 fb
= get_framebuffer_target(ctx
, target
);
2213 _mesa_error(ctx
, GL_INVALID_ENUM
, "glFramebufferRenderbufferEXT(target)");
2217 if (renderbufferTarget
!= GL_RENDERBUFFER_EXT
) {
2218 _mesa_error(ctx
, GL_INVALID_ENUM
,
2219 "glFramebufferRenderbufferEXT(renderbufferTarget)");
2223 if (_mesa_is_winsys_fbo(fb
)) {
2224 /* Can't attach new renderbuffers to a window system framebuffer */
2225 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glFramebufferRenderbufferEXT");
2229 att
= _mesa_get_attachment(ctx
, fb
, attachment
);
2231 _mesa_error(ctx
, GL_INVALID_ENUM
,
2232 "glFramebufferRenderbufferEXT(invalid attachment %s)",
2233 _mesa_lookup_enum_by_nr(attachment
));
2238 rb
= _mesa_lookup_renderbuffer(ctx
, renderbuffer
);
2240 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2241 "glFramebufferRenderbufferEXT(non-existant"
2242 " renderbuffer %u)", renderbuffer
);
2245 else if (rb
== &DummyRenderbuffer
) {
2246 /* This is what NVIDIA does */
2247 _mesa_error(ctx
, GL_INVALID_VALUE
,
2248 "glFramebufferRenderbufferEXT(renderbuffer %u)",
2254 /* remove renderbuffer attachment */
2258 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
&&
2259 rb
&& rb
->Format
!= MESA_FORMAT_NONE
) {
2260 /* make sure the renderbuffer is a depth/stencil format */
2261 const GLenum baseFormat
= _mesa_get_format_base_format(rb
->Format
);
2262 if (baseFormat
!= GL_DEPTH_STENCIL
) {
2263 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2264 "glFramebufferRenderbufferEXT(renderbuffer"
2265 " is not DEPTH_STENCIL format)");
2271 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2273 assert(ctx
->Driver
.FramebufferRenderbuffer
);
2274 ctx
->Driver
.FramebufferRenderbuffer(ctx
, fb
, attachment
, rb
);
2276 /* Some subsequent GL commands may depend on the framebuffer's visual
2277 * after the binding is updated. Update visual info now.
2279 _mesa_update_framebuffer_visual(ctx
, fb
);
2284 _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target
, GLenum attachment
,
2285 GLenum pname
, GLint
*params
)
2287 const struct gl_renderbuffer_attachment
*att
;
2288 struct gl_framebuffer
*buffer
;
2290 GET_CURRENT_CONTEXT(ctx
);
2292 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2294 /* The error differs in GL and GLES. */
2295 err
= _mesa_is_desktop_gl(ctx
) ? GL_INVALID_OPERATION
: GL_INVALID_ENUM
;
2297 buffer
= get_framebuffer_target(ctx
, target
);
2299 _mesa_error(ctx
, GL_INVALID_ENUM
,
2300 "glGetFramebufferAttachmentParameterivEXT(target)");
2304 if (_mesa_is_winsys_fbo(buffer
)) {
2305 /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
2308 * "If the framebuffer currently bound to target is zero, then
2309 * INVALID_OPERATION is generated."
2311 * The EXT_framebuffer_object spec has the same wording, and the
2312 * OES_framebuffer_object spec refers to the EXT_framebuffer_object
2315 if (!_mesa_is_desktop_gl(ctx
) || !ctx
->Extensions
.ARB_framebuffer_object
) {
2316 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2317 "glGetFramebufferAttachmentParameteriv(bound FBO = 0)");
2320 /* the default / window-system FBO */
2321 att
= _mesa_get_fb0_attachment(ctx
, buffer
, attachment
);
2324 /* user-created framebuffer FBO */
2325 att
= _mesa_get_attachment(ctx
, buffer
, attachment
);
2329 _mesa_error(ctx
, GL_INVALID_ENUM
,
2330 "glGetFramebufferAttachmentParameterivEXT(attachment)");
2334 if (attachment
== GL_DEPTH_STENCIL_ATTACHMENT
) {
2335 /* the depth and stencil attachments must point to the same buffer */
2336 const struct gl_renderbuffer_attachment
*depthAtt
, *stencilAtt
;
2337 depthAtt
= _mesa_get_attachment(ctx
, buffer
, GL_DEPTH_ATTACHMENT
);
2338 stencilAtt
= _mesa_get_attachment(ctx
, buffer
, GL_STENCIL_ATTACHMENT
);
2339 if (depthAtt
->Renderbuffer
!= stencilAtt
->Renderbuffer
) {
2340 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2341 "glGetFramebufferAttachmentParameterivEXT(DEPTH/STENCIL"
2342 " attachments differ)");
2347 /* No need to flush here */
2350 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT
:
2351 *params
= _mesa_is_winsys_fbo(buffer
)
2352 ? GL_FRAMEBUFFER_DEFAULT
: att
->Type
;
2354 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT
:
2355 if (att
->Type
== GL_RENDERBUFFER_EXT
) {
2356 *params
= att
->Renderbuffer
->Name
;
2358 else if (att
->Type
== GL_TEXTURE
) {
2359 *params
= att
->Texture
->Name
;
2362 assert(att
->Type
== GL_NONE
);
2363 if (_mesa_is_desktop_gl(ctx
)) {
2366 _mesa_error(ctx
, GL_INVALID_ENUM
,
2367 "glGetFramebufferAttachmentParameterivEXT(pname)");
2371 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT
:
2372 if (att
->Type
== GL_TEXTURE
) {
2373 *params
= att
->TextureLevel
;
2375 else if (att
->Type
== GL_NONE
) {
2376 _mesa_error(ctx
, err
,
2377 "glGetFramebufferAttachmentParameterivEXT(pname)");
2380 _mesa_error(ctx
, GL_INVALID_ENUM
,
2381 "glGetFramebufferAttachmentParameterivEXT(pname)");
2384 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT
:
2385 if (att
->Type
== GL_TEXTURE
) {
2386 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_CUBE_MAP
) {
2387 *params
= GL_TEXTURE_CUBE_MAP_POSITIVE_X
+ att
->CubeMapFace
;
2393 else if (att
->Type
== GL_NONE
) {
2394 _mesa_error(ctx
, err
,
2395 "glGetFramebufferAttachmentParameterivEXT(pname)");
2398 _mesa_error(ctx
, GL_INVALID_ENUM
,
2399 "glGetFramebufferAttachmentParameterivEXT(pname)");
2402 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT
:
2403 if (att
->Type
== GL_TEXTURE
) {
2404 if (att
->Texture
&& att
->Texture
->Target
== GL_TEXTURE_3D
) {
2405 *params
= att
->Zoffset
;
2411 else if (att
->Type
== GL_NONE
) {
2412 _mesa_error(ctx
, err
,
2413 "glGetFramebufferAttachmentParameterivEXT(pname)");
2416 _mesa_error(ctx
, GL_INVALID_ENUM
,
2417 "glGetFramebufferAttachmentParameterivEXT(pname)");
2420 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
:
2421 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
2422 _mesa_error(ctx
, GL_INVALID_ENUM
,
2423 "glGetFramebufferAttachmentParameterivEXT(pname)");
2425 else if (att
->Type
== GL_NONE
) {
2426 _mesa_error(ctx
, err
,
2427 "glGetFramebufferAttachmentParameterivEXT(pname)");
2430 if (ctx
->Extensions
.EXT_framebuffer_sRGB
) {
2431 *params
= _mesa_get_format_color_encoding(att
->Renderbuffer
->Format
);
2434 /* According to ARB_framebuffer_sRGB, we should return LINEAR
2435 * if the sRGB conversion is unsupported. */
2436 *params
= GL_LINEAR
;
2440 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE
:
2441 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
2442 _mesa_error(ctx
, GL_INVALID_ENUM
,
2443 "glGetFramebufferAttachmentParameterivEXT(pname)");
2446 else if (att
->Type
== GL_NONE
) {
2447 _mesa_error(ctx
, err
,
2448 "glGetFramebufferAttachmentParameterivEXT(pname)");
2451 gl_format format
= att
->Renderbuffer
->Format
;
2452 if (format
== MESA_FORMAT_S8
) {
2456 else if (format
== MESA_FORMAT_Z32_FLOAT_X24S8
) {
2457 /* depends on the attachment parameter */
2458 if (attachment
== GL_STENCIL_ATTACHMENT
) {
2466 *params
= _mesa_get_format_datatype(format
);
2470 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
2471 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
2472 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
2473 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
2474 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
2475 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
2476 if (!ctx
->Extensions
.ARB_framebuffer_object
) {
2477 _mesa_error(ctx
, GL_INVALID_ENUM
,
2478 "glGetFramebufferAttachmentParameterivEXT(pname)");
2480 else if (att
->Type
== GL_NONE
) {
2481 _mesa_error(ctx
, err
,
2482 "glGetFramebufferAttachmentParameterivEXT(pname)");
2484 else if (att
->Texture
) {
2485 const struct gl_texture_image
*texImage
=
2486 _mesa_select_tex_image(ctx
, att
->Texture
, att
->Texture
->Target
,
2489 *params
= get_component_bits(pname
, texImage
->_BaseFormat
,
2490 texImage
->TexFormat
);
2496 else if (att
->Renderbuffer
) {
2497 *params
= get_component_bits(pname
, att
->Renderbuffer
->_BaseFormat
,
2498 att
->Renderbuffer
->Format
);
2501 _mesa_problem(ctx
, "glGetFramebufferAttachmentParameterivEXT:"
2502 " invalid FBO attachment structure");
2506 _mesa_error(ctx
, GL_INVALID_ENUM
,
2507 "glGetFramebufferAttachmentParameterivEXT(pname)");
2514 _mesa_GenerateMipmapEXT(GLenum target
)
2516 struct gl_texture_image
*srcImage
;
2517 struct gl_texture_object
*texObj
;
2520 GET_CURRENT_CONTEXT(ctx
);
2522 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2523 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2531 case GL_TEXTURE_CUBE_MAP
:
2532 error
= !ctx
->Extensions
.ARB_texture_cube_map
;
2534 case GL_TEXTURE_1D_ARRAY
:
2535 case GL_TEXTURE_2D_ARRAY
:
2536 error
= !ctx
->Extensions
.EXT_texture_array
;
2543 _mesa_error(ctx
, GL_INVALID_ENUM
, "glGenerateMipmapEXT(target=%s)",
2544 _mesa_lookup_enum_by_nr(target
));
2548 texObj
= _mesa_get_current_tex_object(ctx
, target
);
2550 if (texObj
->BaseLevel
>= texObj
->MaxLevel
) {
2555 if (texObj
->Target
== GL_TEXTURE_CUBE_MAP
&&
2556 !_mesa_cube_complete(texObj
)) {
2557 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2558 "glGenerateMipmap(incomplete cube map)");
2562 _mesa_lock_texture(ctx
, texObj
);
2564 srcImage
= _mesa_select_tex_image(ctx
, texObj
, target
, texObj
->BaseLevel
);
2566 _mesa_unlock_texture(ctx
, texObj
);
2567 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2568 "glGenerateMipmap(zero size base image)");
2572 if (target
== GL_TEXTURE_CUBE_MAP
) {
2574 for (face
= 0; face
< 6; face
++)
2575 ctx
->Driver
.GenerateMipmap(ctx
,
2576 GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
+ face
,
2580 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
2582 _mesa_unlock_texture(ctx
, texObj
);
2586 #if FEATURE_EXT_framebuffer_blit
2588 static const struct gl_renderbuffer_attachment
*
2589 find_attachment(const struct gl_framebuffer
*fb
,
2590 const struct gl_renderbuffer
*rb
)
2593 for (i
= 0; i
< Elements(fb
->Attachment
); i
++) {
2594 if (fb
->Attachment
[i
].Renderbuffer
== rb
)
2595 return &fb
->Attachment
[i
];
2602 * Helper function for checking if the datatypes of color buffers are
2603 * compatible for glBlitFramebuffer. From the 3.1 spec, page 198:
2605 * "GL_INVALID_OPERATION is generated if mask contains GL_COLOR_BUFFER_BIT
2606 * and any of the following conditions hold:
2607 * - The read buffer contains fixed-point or floating-point values and any
2608 * draw buffer contains neither fixed-point nor floating-point values.
2609 * - The read buffer contains unsigned integer values and any draw buffer
2610 * does not contain unsigned integer values.
2611 * - The read buffer contains signed integer values and any draw buffer
2612 * does not contain signed integer values."
2615 compatible_color_datatypes(gl_format srcFormat
, gl_format dstFormat
)
2617 GLenum srcType
= _mesa_get_format_datatype(srcFormat
);
2618 GLenum dstType
= _mesa_get_format_datatype(dstFormat
);
2620 if (srcType
!= GL_INT
&& srcType
!= GL_UNSIGNED_INT
) {
2621 assert(srcType
== GL_UNSIGNED_NORMALIZED
||
2622 srcType
== GL_SIGNED_NORMALIZED
||
2623 srcType
== GL_FLOAT
);
2624 /* Boil any of those types down to GL_FLOAT */
2628 if (dstType
!= GL_INT
&& dstType
!= GL_UNSIGNED_INT
) {
2629 assert(dstType
== GL_UNSIGNED_NORMALIZED
||
2630 dstType
== GL_SIGNED_NORMALIZED
||
2631 dstType
== GL_FLOAT
);
2632 /* Boil any of those types down to GL_FLOAT */
2636 return srcType
== dstType
;
2641 * Return the equivalent non-generic internal format.
2642 * This is useful for comparing whether two internal formats are semantically
2646 get_nongeneric_internalformat(GLenum format
)
2649 /* GL 1.1 formats. */
2659 case GL_LUMINANCE_ALPHA
:
2660 return GL_LUMINANCE8_ALPHA8
;
2664 return GL_LUMINANCE8
;
2670 return GL_INTENSITY8
;
2672 /* GL_ARB_texture_rg */
2679 /* GL_EXT_texture_sRGB */
2684 return GL_SRGB8_ALPHA8
;
2687 return GL_SLUMINANCE8
;
2689 case GL_SLUMINANCE_ALPHA
:
2690 return GL_SLUMINANCE8_ALPHA8
;
2692 /* GL_EXT_texture_snorm */
2694 return GL_RGBA8_SNORM
;
2697 return GL_RGB8_SNORM
;
2700 return GL_RG8_SNORM
;
2705 case GL_LUMINANCE_ALPHA_SNORM
:
2706 return GL_LUMINANCE8_ALPHA8_SNORM
;
2708 case GL_LUMINANCE_SNORM
:
2709 return GL_LUMINANCE8_SNORM
;
2711 case GL_ALPHA_SNORM
:
2712 return GL_ALPHA8_SNORM
;
2714 case GL_INTENSITY_SNORM
:
2715 return GL_INTENSITY8_SNORM
;
2724 compatible_resolve_formats(const struct gl_renderbuffer
*colorReadRb
,
2725 const struct gl_renderbuffer
*colorDrawRb
)
2727 /* The simple case where we know the backing formats are the same.
2729 if (colorReadRb
->Format
== colorDrawRb
->Format
) {
2733 /* The Mesa formats are different, so we must check whether the internal
2734 * formats are compatible.
2736 * Under some circumstances, the user may request e.g. two GL_RGBA8
2737 * textures and get two entirely different Mesa formats like RGBA8888 and
2738 * ARGB8888. Drivers behaving like that should be able to cope with
2739 * non-matching formats by themselves, because it's not the user's fault.
2741 if (get_nongeneric_internalformat(colorReadRb
->InternalFormat
) ==
2742 get_nongeneric_internalformat(colorDrawRb
->InternalFormat
)) {
2751 * Blit rectangular region, optionally from one framebuffer to another.
2753 * Note, if the src buffer is multisampled and the dest is not, this is
2754 * when the samples must be resolved to a single color.
2757 _mesa_BlitFramebufferEXT(GLint srcX0
, GLint srcY0
, GLint srcX1
, GLint srcY1
,
2758 GLint dstX0
, GLint dstY0
, GLint dstX1
, GLint dstY1
,
2759 GLbitfield mask
, GLenum filter
)
2761 const GLbitfield legalMaskBits
= (GL_COLOR_BUFFER_BIT
|
2762 GL_DEPTH_BUFFER_BIT
|
2763 GL_STENCIL_BUFFER_BIT
);
2764 const struct gl_framebuffer
*readFb
, *drawFb
;
2765 const struct gl_renderbuffer
*colorReadRb
, *colorDrawRb
;
2766 GET_CURRENT_CONTEXT(ctx
);
2768 ASSERT_OUTSIDE_BEGIN_END(ctx
);
2769 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
2771 if (MESA_VERBOSE
& VERBOSE_API
)
2773 "glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d, 0x%x, %s)\n",
2774 srcX0
, srcY0
, srcX1
, srcY1
,
2775 dstX0
, dstY0
, dstX1
, dstY1
,
2776 mask
, _mesa_lookup_enum_by_nr(filter
));
2778 if (ctx
->NewState
) {
2779 _mesa_update_state(ctx
);
2782 readFb
= ctx
->ReadBuffer
;
2783 drawFb
= ctx
->DrawBuffer
;
2785 if (!readFb
|| !drawFb
) {
2786 /* This will normally never happen but someday we may want to
2787 * support MakeCurrent() with no drawables.
2792 /* check for complete framebuffers */
2793 if (drawFb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
||
2794 readFb
->_Status
!= GL_FRAMEBUFFER_COMPLETE_EXT
) {
2795 _mesa_error(ctx
, GL_INVALID_FRAMEBUFFER_OPERATION_EXT
,
2796 "glBlitFramebufferEXT(incomplete draw/read buffers)");
2800 if (filter
!= GL_NEAREST
&& filter
!= GL_LINEAR
) {
2801 _mesa_error(ctx
, GL_INVALID_ENUM
, "glBlitFramebufferEXT(filter)");
2805 if (mask
& ~legalMaskBits
) {
2806 _mesa_error( ctx
, GL_INVALID_VALUE
, "glBlitFramebufferEXT(mask)");
2810 /* depth/stencil must be blitted with nearest filtering */
2811 if ((mask
& (GL_DEPTH_BUFFER_BIT
| GL_STENCIL_BUFFER_BIT
))
2812 && filter
!= GL_NEAREST
) {
2813 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2814 "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter)");
2818 /* get color read/draw renderbuffers */
2819 if (mask
& GL_COLOR_BUFFER_BIT
) {
2820 colorReadRb
= readFb
->_ColorReadBuffer
;
2821 colorDrawRb
= drawFb
->_ColorDrawBuffers
[0];
2823 /* From the EXT_framebuffer_object spec:
2825 * "If a buffer is specified in <mask> and does not exist in both
2826 * the read and draw framebuffers, the corresponding bit is silently
2829 if ((colorReadRb
== NULL
) || (colorDrawRb
== NULL
)) {
2830 colorReadRb
= colorDrawRb
= NULL
;
2831 mask
&= ~GL_COLOR_BUFFER_BIT
;
2833 else if (!compatible_color_datatypes(colorReadRb
->Format
,
2834 colorDrawRb
->Format
)) {
2835 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2836 "glBlitFramebufferEXT(color buffer datatypes mismatch)");
2841 colorReadRb
= colorDrawRb
= NULL
;
2844 if (mask
& GL_STENCIL_BUFFER_BIT
) {
2845 struct gl_renderbuffer
*readRb
=
2846 readFb
->Attachment
[BUFFER_STENCIL
].Renderbuffer
;
2847 struct gl_renderbuffer
*drawRb
=
2848 drawFb
->Attachment
[BUFFER_STENCIL
].Renderbuffer
;
2850 /* From the EXT_framebuffer_object spec:
2852 * "If a buffer is specified in <mask> and does not exist in both
2853 * the read and draw framebuffers, the corresponding bit is silently
2856 if ((readRb
== NULL
) || (drawRb
== NULL
)) {
2857 mask
&= ~GL_STENCIL_BUFFER_BIT
;
2859 else if (_mesa_get_format_bits(readRb
->Format
, GL_STENCIL_BITS
) !=
2860 _mesa_get_format_bits(drawRb
->Format
, GL_STENCIL_BITS
)) {
2861 /* There is no need to check the stencil datatype here, because
2862 * there is only one: GL_UNSIGNED_INT.
2864 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2865 "glBlitFramebufferEXT(stencil buffer size mismatch)");
2870 if (mask
& GL_DEPTH_BUFFER_BIT
) {
2871 struct gl_renderbuffer
*readRb
=
2872 readFb
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
2873 struct gl_renderbuffer
*drawRb
=
2874 drawFb
->Attachment
[BUFFER_DEPTH
].Renderbuffer
;
2876 /* From the EXT_framebuffer_object spec:
2878 * "If a buffer is specified in <mask> and does not exist in both
2879 * the read and draw framebuffers, the corresponding bit is silently
2882 if ((readRb
== NULL
) || (drawRb
== NULL
)) {
2883 mask
&= ~GL_DEPTH_BUFFER_BIT
;
2885 else if ((_mesa_get_format_bits(readRb
->Format
, GL_DEPTH_BITS
) !=
2886 _mesa_get_format_bits(drawRb
->Format
, GL_DEPTH_BITS
)) ||
2887 (_mesa_get_format_datatype(readRb
->Format
) !=
2888 _mesa_get_format_datatype(drawRb
->Format
))) {
2889 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2890 "glBlitFramebufferEXT(depth buffer format mismatch)");
2895 if (readFb
->Visual
.samples
> 0 &&
2896 drawFb
->Visual
.samples
> 0 &&
2897 readFb
->Visual
.samples
!= drawFb
->Visual
.samples
) {
2898 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2899 "glBlitFramebufferEXT(mismatched samples)");
2903 /* extra checks for multisample copies... */
2904 if (readFb
->Visual
.samples
> 0 || drawFb
->Visual
.samples
> 0) {
2905 /* src and dest region sizes must be the same */
2906 if (srcX1
- srcX0
!= dstX1
- dstX0
||
2907 srcY1
- srcY0
!= dstY1
- dstY0
) {
2908 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2909 "glBlitFramebufferEXT(bad src/dst multisample region sizes)");
2913 /* color formats must match */
2916 !compatible_resolve_formats(colorReadRb
, colorDrawRb
)) {
2917 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2918 "glBlitFramebufferEXT(bad src/dst multisample pixel formats)");
2923 if (filter
== GL_LINEAR
&& (mask
& GL_COLOR_BUFFER_BIT
)) {
2924 /* 3.1 spec, page 199:
2925 * "Calling BlitFramebuffer will result in an INVALID_OPERATION error
2926 * if filter is LINEAR and read buffer contains integer data."
2928 GLenum type
= _mesa_get_format_datatype(colorReadRb
->Format
);
2929 if (type
== GL_INT
|| type
== GL_UNSIGNED_INT
) {
2930 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2931 "glBlitFramebufferEXT(integer color type)");
2936 if (!ctx
->Extensions
.EXT_framebuffer_blit
) {
2937 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glBlitFramebufferEXT");
2943 printf("glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d,"
2945 srcX0
, srcY0
, srcX1
, srcY1
,
2946 dstX0
, dstY0
, dstX1
, dstY1
,
2949 const struct gl_renderbuffer_attachment
*att
;
2951 att
= find_attachment(readFb
, colorReadRb
);
2952 printf(" Src FBO %u RB %u (%dx%d) ",
2953 readFb
->Name
, colorReadRb
->Name
,
2954 colorReadRb
->Width
, colorReadRb
->Height
);
2955 if (att
&& att
->Texture
) {
2956 printf("Tex %u tgt 0x%x level %u face %u",
2958 att
->Texture
->Target
,
2964 att
= find_attachment(drawFb
, colorDrawRb
);
2965 printf(" Dst FBO %u RB %u (%dx%d) ",
2966 drawFb
->Name
, colorDrawRb
->Name
,
2967 colorDrawRb
->Width
, colorDrawRb
->Height
);
2968 if (att
&& att
->Texture
) {
2969 printf("Tex %u tgt 0x%x level %u face %u",
2971 att
->Texture
->Target
,
2983 ASSERT(ctx
->Driver
.BlitFramebuffer
);
2984 ctx
->Driver
.BlitFramebuffer(ctx
,
2985 srcX0
, srcY0
, srcX1
, srcY1
,
2986 dstX0
, dstY0
, dstX1
, dstY1
,
2989 #endif /* FEATURE_EXT_framebuffer_blit */
2992 #if FEATURE_ARB_geometry_shader4
2994 _mesa_FramebufferTextureARB(GLenum target
, GLenum attachment
,
2995 GLuint texture
, GLint level
)
2997 GET_CURRENT_CONTEXT(ctx
);
2998 _mesa_error(ctx
, GL_INVALID_OPERATION
,
2999 "glFramebufferTextureARB "
3000 "not implemented!");
3005 _mesa_FramebufferTextureFaceARB(GLenum target
, GLenum attachment
,
3006 GLuint texture
, GLint level
, GLenum face
)
3008 GET_CURRENT_CONTEXT(ctx
);
3009 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3010 "glFramebufferTextureFaceARB "
3011 "not implemented!");
3013 #endif /* FEATURE_ARB_geometry_shader4 */
3016 invalidate_framebuffer_storage(GLenum target
, GLsizei numAttachments
,
3017 const GLenum
*attachments
, GLint x
, GLint y
,
3018 GLsizei width
, GLsizei height
, const char *name
)
3021 struct gl_framebuffer
*fb
;
3022 GET_CURRENT_CONTEXT(ctx
);
3024 ASSERT_OUTSIDE_BEGIN_END(ctx
);
3026 fb
= get_framebuffer_target(ctx
, target
);
3028 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(target)", name
);
3032 if (numAttachments
< 0) {
3033 _mesa_error(ctx
, GL_INVALID_VALUE
,
3034 "%s(numAttachments < 0)", name
);
3038 /* The GL_ARB_invalidate_subdata spec says:
3040 * "If an attachment is specified that does not exist in the
3041 * framebuffer bound to <target>, it is ignored."
3045 * "If <attachments> contains COLOR_ATTACHMENTm and m is greater than
3046 * or equal to the value of MAX_COLOR_ATTACHMENTS, then the error
3047 * INVALID_OPERATION is generated."
3049 * No mention is made of GL_AUXi being out of range. Therefore, we allow
3050 * any enum that can be allowed by the API (OpenGL ES 3.0 has a different
3051 * set of retrictions).
3053 for (i
= 0; i
< numAttachments
; i
++) {
3054 if (_mesa_is_winsys_fbo(fb
)) {
3055 switch (attachments
[i
]) {
3061 /* Accumulation buffers and auxilary buffers were removed in
3062 * OpenGL 3.1, and they never existed in OpenGL ES.
3064 if (ctx
->API
!= API_OPENGL
)
3074 case GL_FRONT_RIGHT
:
3075 if (!_mesa_is_desktop_gl(ctx
))
3082 switch (attachments
[i
]) {
3083 case GL_DEPTH_ATTACHMENT
:
3084 case GL_STENCIL_ATTACHMENT
:
3086 case GL_COLOR_ATTACHMENT0
:
3087 case GL_COLOR_ATTACHMENT1
:
3088 case GL_COLOR_ATTACHMENT2
:
3089 case GL_COLOR_ATTACHMENT3
:
3090 case GL_COLOR_ATTACHMENT4
:
3091 case GL_COLOR_ATTACHMENT5
:
3092 case GL_COLOR_ATTACHMENT6
:
3093 case GL_COLOR_ATTACHMENT7
:
3094 case GL_COLOR_ATTACHMENT8
:
3095 case GL_COLOR_ATTACHMENT9
:
3096 case GL_COLOR_ATTACHMENT10
:
3097 case GL_COLOR_ATTACHMENT11
:
3098 case GL_COLOR_ATTACHMENT12
:
3099 case GL_COLOR_ATTACHMENT13
:
3100 case GL_COLOR_ATTACHMENT14
:
3101 case GL_COLOR_ATTACHMENT15
: {
3102 const int k
= attachments
[i
] - GL_COLOR_ATTACHMENT0
;
3103 if (k
>= ctx
->Const
.MaxColorAttachments
) {
3104 _mesa_error(ctx
, GL_INVALID_OPERATION
,
3105 "%s(attachment >= max. color attachments)", name
);
3115 /* We don't actually do anything for this yet. Just return after
3116 * validating the parameters and generating the required errors.
3121 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(attachment)", name
);
3126 _mesa_InvalidateSubFramebuffer(GLenum target
, GLsizei numAttachments
,
3127 const GLenum
*attachments
, GLint x
, GLint y
,
3128 GLsizei width
, GLsizei height
)
3130 invalidate_framebuffer_storage(target
, numAttachments
, attachments
,
3131 x
, y
, width
, height
,
3132 "glInvalidateSubFramebuffer");
3136 _mesa_InvalidateFramebuffer(GLenum target
, GLsizei numAttachments
,
3137 const GLenum
*attachments
)
3139 /* The GL_ARB_invalidate_subdata spec says:
3143 * void InvalidateFramebuffer(enum target,
3144 * sizei numAttachments,
3145 * const enum *attachments);
3147 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
3148 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
3149 * <MAX_VIEWPORT_DIMS[1]> respectively."
3151 invalidate_framebuffer_storage(target
, numAttachments
, attachments
,
3152 0, 0, MAX_VIEWPORT_WIDTH
, MAX_VIEWPORT_HEIGHT
,
3153 "glInvalidateFramebuffer");