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
41 #include "framebuffer.h"
42 #include "glformats.h"
45 #include "mfeatures.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 switch (attachment) {
250 return &fb->Attachment[BUFFER_FRONT_LEFT];
252 return &fb->Attachment[BUFFER_FRONT_RIGHT];
254 return &fb->Attachment[BUFFER_BACK_LEFT];
256 return &fb->Attachment[BUFFER_BACK_RIGHT];
258 if (fb->Visual.numAuxBuffers == 1) {
259 return &fb->Attachment[BUFFER_AUX0];
263 /* Page 336 (page 352 of the PDF) of the OpenGL 3.0 spec says:
265 * "If the default framebuffer is bound to target, then attachment must
266 * be one of FRONT LEFT, FRONT RIGHT, BACK LEFT, BACK RIGHT, or AUXi,
267 * identifying a color buffer; DEPTH, identifying the depth buffer; or
268 * STENCIL, identifying the stencil buffer."
270 * Revision #34 of the ARB_framebuffer_object spec has essentially the same
271 * language. However, revision #33 of the ARB_framebuffer_object spec
274 * "If the default framebuffer is bound to <target>, then <attachment>
275 * must be one of FRONT_LEFT, FRONT_RIGHT, BACK_LEFT, BACK_RIGHT, AUXi,
276 * DEPTH_BUFFER, or STENCIL_BUFFER, identifying a color buffer, the
277 * depth buffer, or the stencil buffer, and <pname> may be
278 * FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE or
279 * FRAMEBUFFER_ATTACHMENT_OBJECT_NAME."
281 * The enum values for DEPTH_BUFFER and STENCIL_BUFFER have been removed
282 * from glext.h, so shipping apps should not use those values.
284 * Note that neither EXT_framebuffer_object nor OES_framebuffer_object
285 * support queries of the window system FBO.
288 return &fb->Attachment[BUFFER_DEPTH];
290 return &fb->Attachment[BUFFER_STENCIL];
299 * Remove any texture or renderbuffer attached to the given attachment
300 * point. Update reference counts, etc.
303 _mesa_remove_attachment(struct gl_context *ctx,
304 struct gl_renderbuffer_attachment *att)
306 if (att->Type == GL_TEXTURE) {
307 ASSERT(att->Texture);
308 if (ctx->Driver.FinishRenderTexture) {
309 /* tell driver that we're done rendering to this texture. */
310 ctx->Driver.FinishRenderTexture(ctx, att);
312 _mesa_reference_texobj(&att->Texture, NULL); /* unbind */
313 ASSERT(!att->Texture);
315 if (att->Type == GL_TEXTURE || att->Type == GL_RENDERBUFFER_EXT) {
316 ASSERT(!att->Texture);
317 _mesa_reference_renderbuffer(&att->Renderbuffer, NULL); /* unbind */
318 ASSERT(!att->Renderbuffer);
321 att->Complete = GL_TRUE;
326 * Bind a texture object to an attachment point.
327 * The previous binding, if any, will be removed first.
330 _mesa_set_texture_attachment(struct gl_context *ctx,
331 struct gl_framebuffer *fb,
332 struct gl_renderbuffer_attachment *att,
333 struct gl_texture_object *texObj,
334 GLenum texTarget, GLuint level, GLuint zoffset)
336 if (att->Texture == texObj) {
337 /* re-attaching same texture */
338 ASSERT(att->Type == GL_TEXTURE);
339 if (ctx->Driver.FinishRenderTexture)
340 ctx->Driver.FinishRenderTexture(ctx, att);
344 if (ctx->Driver.FinishRenderTexture && att->Texture)
345 ctx->Driver.FinishRenderTexture(ctx, att);
346 _mesa_remove_attachment(ctx, att);
347 att->Type = GL_TEXTURE;
348 assert(!att->Texture);
349 _mesa_reference_texobj(&att->Texture, texObj);
352 /* always update these fields */
353 att->TextureLevel = level;
354 att->CubeMapFace = _mesa_tex_target_to_face(texTarget);
355 att->Zoffset = zoffset;
356 att->Complete = GL_FALSE;
358 if (_mesa_get_attachment_teximage(att)) {
359 ctx->Driver.RenderTexture(ctx, fb, att);
362 invalidate_framebuffer(fb);
367 * Bind a renderbuffer to an attachment point.
368 * The previous binding, if any, will be removed first.
371 _mesa_set_renderbuffer_attachment(struct gl_context *ctx,
372 struct gl_renderbuffer_attachment *att,
373 struct gl_renderbuffer *rb)
375 /* XXX check if re-doing same attachment, exit early */
376 _mesa_remove_attachment(ctx, att);
377 att->Type = GL_RENDERBUFFER_EXT;
378 att->Texture = NULL; /* just to be safe */
379 att->Complete = GL_FALSE;
380 _mesa_reference_renderbuffer(&att->Renderbuffer, rb);
385 * Fallback for ctx->Driver.FramebufferRenderbuffer()
386 * Attach a renderbuffer object to a framebuffer object.
389 _mesa_framebuffer_renderbuffer(struct gl_context *ctx,
390 struct gl_framebuffer *fb,
391 GLenum attachment, struct gl_renderbuffer *rb)
393 struct gl_renderbuffer_attachment *att;
395 _glthread_LOCK_MUTEX(fb->Mutex);
397 att = _mesa_get_attachment(ctx, fb, attachment);
400 _mesa_set_renderbuffer_attachment(ctx, att, rb);
401 if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
402 /* do stencil attachment here (depth already done above) */
403 att = _mesa_get_attachment(ctx, fb, GL_STENCIL_ATTACHMENT_EXT);
405 _mesa_set_renderbuffer_attachment(ctx, att, rb);
407 rb->AttachedAnytime = GL_TRUE;
410 _mesa_remove_attachment(ctx, att);
413 invalidate_framebuffer(fb);
415 _glthread_UNLOCK_MUTEX(fb->Mutex);
420 * Fallback for ctx->Driver.ValidateFramebuffer()
421 * Check if the renderbuffer's formats are supported by the software
423 * Drivers should probably override this.
426 _mesa_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb)
429 for (buf = 0; buf < BUFFER_COUNT; buf++) {
430 const struct gl_renderbuffer *rb = fb->Attachment[buf].Renderbuffer;
432 switch (rb->_BaseFormat) {
434 case GL_LUMINANCE_ALPHA:
439 fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED;
443 switch (rb->Format) {
444 /* XXX This list is likely incomplete. */
445 case MESA_FORMAT_RGB9_E5_FLOAT:
446 fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED;
449 /* render buffer format is supported by software rendering */
461 att_incomplete(const char *msg)
463 if (MESA_DEBUG_FLAGS & DEBUG_INCOMPLETE_FBO) {
464 _mesa_debug(NULL, "attachment incomplete: %s\n", msg);
473 fbo_incomplete(const char *msg, int index)
475 if (MESA_DEBUG_FLAGS & DEBUG_INCOMPLETE_FBO) {
476 _mesa_debug(NULL, "FBO Incomplete: %s [%d]\n", msg, index);
482 * Is the given base format a legal format for a color renderbuffer?
485 _mesa_is_legal_color_format(const struct gl_context *ctx, GLenum baseFormat)
487 switch (baseFormat) {
492 case GL_LUMINANCE_ALPHA:
495 return ctx->API == API_OPENGL_COMPAT &&
496 ctx->Extensions.ARB_framebuffer_object;
499 return ctx->Extensions.ARB_texture_rg;
507 * Is the given base format a legal format for a depth/stencil renderbuffer?
510 is_legal_depth_format(const struct gl_context *ctx, GLenum baseFormat)
512 switch (baseFormat) {
513 case GL_DEPTH_COMPONENT:
514 case GL_DEPTH_STENCIL_EXT:
523 * Test if an attachment point is complete and update its Complete field.
524 * \param format if GL_COLOR, this is a color attachment point,
525 * if GL_DEPTH, this is a depth component attachment point,
526 * if GL_STENCIL, this is a stencil component attachment point.
529 test_attachment_completeness(const struct gl_context *ctx, GLenum format,
530 struct gl_renderbuffer_attachment *att)
532 assert(format == GL_COLOR || format == GL_DEPTH || format == GL_STENCIL);
534 /* assume complete */
535 att->Complete = GL_TRUE;
537 /* Look for reasons why the attachment might be incomplete */
538 if (att->Type == GL_TEXTURE) {
539 const struct gl_texture_object *texObj = att->Texture;
540 struct gl_texture_image *texImage;
544 att_incomplete("no texobj");
545 att->Complete = GL_FALSE;
549 texImage = texObj->Image[att->CubeMapFace][att->TextureLevel];
551 att_incomplete("no teximage");
552 att->Complete = GL_FALSE;
555 if (texImage->Width < 1 || texImage->Height < 1) {
556 att_incomplete("teximage width/height=0");
557 printf("texobj = %u\n", texObj->Name);
558 printf("level = %d\n", att->TextureLevel);
559 att->Complete = GL_FALSE;
562 if (texObj->Target == GL_TEXTURE_3D && att->Zoffset >= texImage->Depth) {
563 att_incomplete("bad z offset");
564 att->Complete = GL_FALSE;
568 baseFormat = _mesa_get_format_base_format(texImage->TexFormat);
570 if (format == GL_COLOR) {
571 if (!_mesa_is_legal_color_format(ctx, baseFormat)) {
572 att_incomplete("bad format");
573 att->Complete = GL_FALSE;
576 if (_mesa_is_format_compressed(texImage->TexFormat)) {
577 att_incomplete("compressed internalformat");
578 att->Complete = GL_FALSE;
582 else if (format == GL_DEPTH) {
583 if (baseFormat == GL_DEPTH_COMPONENT) {
586 else if (ctx->Extensions.EXT_packed_depth_stencil &&
587 ctx->Extensions.ARB_depth_texture &&
588 baseFormat == GL_DEPTH_STENCIL_EXT) {
592 att->Complete = GL_FALSE;
593 att_incomplete("bad depth format");
598 ASSERT(format == GL_STENCIL);
599 if (ctx->Extensions.EXT_packed_depth_stencil &&
600 ctx->Extensions.ARB_depth_texture &&
601 baseFormat == GL_DEPTH_STENCIL_EXT) {
605 /* no such thing as stencil-only textures */
606 att_incomplete("illegal stencil texture");
607 att->Complete = GL_FALSE;
612 else if (att->Type == GL_RENDERBUFFER_EXT) {
613 const GLenum baseFormat =
614 _mesa_get_format_base_format(att->Renderbuffer->Format);
616 ASSERT(att->Renderbuffer);
617 if (!att->Renderbuffer->InternalFormat ||
618 att->Renderbuffer->Width < 1 ||
619 att->Renderbuffer->Height < 1) {
620 att_incomplete("0x0 renderbuffer");
621 att->Complete = GL_FALSE;
624 if (format == GL_COLOR) {
625 if (!_mesa_is_legal_color_format(ctx, baseFormat)) {
626 att_incomplete("bad renderbuffer color format");
627 att->Complete = GL_FALSE;
631 else if (format == GL_DEPTH) {
632 if (baseFormat == GL_DEPTH_COMPONENT) {
635 else if (ctx->Extensions.EXT_packed_depth_stencil &&
636 baseFormat == GL_DEPTH_STENCIL_EXT) {
640 att_incomplete("bad renderbuffer depth format");
641 att->Complete = GL_FALSE;
646 assert(format == GL_STENCIL);
647 if (baseFormat == GL_STENCIL_INDEX) {
650 else if (ctx->Extensions.EXT_packed_depth_stencil &&
651 baseFormat == GL_DEPTH_STENCIL_EXT) {
655 att->Complete = GL_FALSE;
656 att_incomplete("bad renderbuffer stencil format");
662 ASSERT(att->Type == GL_NONE);
670 * Test if the given framebuffer object is complete and update its
671 * Status field with the results.
672 * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
673 * driver to make hardware-specific validation/completeness checks.
674 * Also update the framebuffer's Width and Height fields if the
675 * framebuffer is complete.
678 _mesa_test_framebuffer_completeness(struct gl_context *ctx,
679 struct gl_framebuffer *fb)
682 GLenum intFormat = GL_NONE; /* color buffers' internal format */
683 GLuint minWidth = ~0, minHeight = ~0, maxWidth = 0, maxHeight = 0;
684 GLint numSamples = -1;
688 assert(_mesa_is_user_fbo(fb));
690 /* we're changing framebuffer fields here */
691 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
697 /* Start at -2 to more easily loop over all attachment points.
702 for (i = -2; i < (GLint) ctx->Const.MaxColorAttachments; i++) {
703 struct gl_renderbuffer_attachment *att;
708 * XXX for ARB_fbo, only check color buffers that are named by
709 * GL_READ_BUFFER and GL_DRAW_BUFFERi.
712 /* check for attachment completeness
715 att = &fb->Attachment[BUFFER_DEPTH];
716 test_attachment_completeness(ctx, GL_DEPTH, att);
717 if (!att->Complete) {
718 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
719 fbo_incomplete("depth attachment incomplete", -1);
724 att = &fb->Attachment[BUFFER_STENCIL];
725 test_attachment_completeness(ctx, GL_STENCIL, att);
726 if (!att->Complete) {
727 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
728 fbo_incomplete("stencil attachment incomplete", -1);
733 att = &fb->Attachment[BUFFER_COLOR0 + i];
734 test_attachment_completeness(ctx, GL_COLOR, att);
735 if (!att->Complete) {
736 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
737 fbo_incomplete("color attachment incomplete", i);
742 /* get width, height, format of the renderbuffer/texture
744 if (att->Type == GL_TEXTURE) {
745 const struct gl_texture_image *texImg =
746 _mesa_get_attachment_teximage(att);
747 minWidth = MIN2(minWidth, texImg->Width);
748 maxWidth = MAX2(maxWidth, texImg->Width);
749 minHeight = MIN2(minHeight, texImg->Height);
750 maxHeight = MAX2(maxHeight, texImg->Height);
751 f = texImg->_BaseFormat;
752 attFormat = texImg->TexFormat;
754 if (!_mesa_is_legal_color_format(ctx, f) &&
755 !is_legal_depth_format(ctx, f)) {
756 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;
757 fbo_incomplete("texture attachment incomplete", -1);
761 else if (att->Type == GL_RENDERBUFFER_EXT) {
762 minWidth = MIN2(minWidth, att->Renderbuffer->Width);
763 maxWidth = MAX2(minWidth, att->Renderbuffer->Width);
764 minHeight = MIN2(minHeight, att->Renderbuffer->Height);
765 maxHeight = MAX2(minHeight, att->Renderbuffer->Height);
766 f = att->Renderbuffer->InternalFormat;
767 attFormat = att->Renderbuffer->Format;
771 assert(att->Type == GL_NONE);
775 if (att->Renderbuffer && numSamples < 0) {
777 numSamples = att->Renderbuffer->NumSamples;
780 /* check if integer color */
781 fb->_IntegerColor = _mesa_is_format_integer_color(attFormat);
783 /* Error-check width, height, format, samples
785 if (numImages == 1) {
786 /* save format, num samples */
792 if (!ctx->Extensions.ARB_framebuffer_object) {
793 /* check that width, height, format are same */
794 if (minWidth != maxWidth || minHeight != maxHeight) {
795 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT;
796 fbo_incomplete("width or height mismatch", -1);
799 /* check that all color buffers are the same format */
800 if (intFormat != GL_NONE && f != intFormat) {
801 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;
802 fbo_incomplete("format mismatch", -1);
806 if (att->Renderbuffer &&
807 att->Renderbuffer->NumSamples != numSamples) {
808 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE;
809 fbo_incomplete("inconsistant number of samples", i);
814 /* Check that the format is valid. (MESA_FORMAT_NONE means unsupported)
816 if (att->Type == GL_RENDERBUFFER &&
817 att->Renderbuffer->Format == MESA_FORMAT_NONE) {
818 fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED;
819 fbo_incomplete("unsupported renderbuffer format", i);
824 if (_mesa_is_desktop_gl(ctx) && !ctx->Extensions.ARB_ES2_compatibility) {
825 /* Check that all DrawBuffers are present */
826 for (j = 0; j < ctx->Const.MaxDrawBuffers; j++) {
827 if (fb->ColorDrawBuffer[j] != GL_NONE) {
828 const struct gl_renderbuffer_attachment *att
829 = _mesa_get_attachment(ctx, fb, fb->ColorDrawBuffer[j]);
831 if (att->Type == GL_NONE) {
832 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT;
833 fbo_incomplete("missing drawbuffer", j);
839 /* Check that the ReadBuffer is present */
840 if (fb->ColorReadBuffer != GL_NONE) {
841 const struct gl_renderbuffer_attachment *att
842 = _mesa_get_attachment(ctx, fb, fb->ColorReadBuffer);
844 if (att->Type == GL_NONE) {
845 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT;
846 fbo_incomplete("missing readbuffer", -1);
852 if (numImages == 0) {
853 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT;
854 fbo_incomplete("no attachments", -1);
858 /* Provisionally set status = COMPLETE ... */
859 fb->_Status = GL_FRAMEBUFFER_COMPLETE_EXT;
861 /* ... but the driver may say the FB is incomplete.
862 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
865 if (ctx->Driver.ValidateFramebuffer) {
866 ctx->Driver.ValidateFramebuffer(ctx, fb);
867 if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
868 fbo_incomplete("driver marked FBO as incomplete", -1);
872 if (fb->_Status == GL_FRAMEBUFFER_COMPLETE_EXT) {
874 * Note that if ARB_framebuffer_object is supported and the attached
875 * renderbuffers/textures are different sizes, the framebuffer
876 * width/height will be set to the smallest width/height.
878 fb->Width = minWidth;
879 fb->Height = minHeight;
881 /* finally, update the visual info for the framebuffer */
882 _mesa_update_framebuffer_visual(ctx, fb);
888 _mesa_IsRenderbuffer(GLuint renderbuffer)
890 GET_CURRENT_CONTEXT(ctx);
891 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
893 struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
894 if (rb != NULL && rb != &DummyRenderbuffer)
902 _mesa_BindRenderbuffer(GLenum target, GLuint renderbuffer)
904 struct gl_renderbuffer *newRb;
905 GET_CURRENT_CONTEXT(ctx);
907 ASSERT_OUTSIDE_BEGIN_END(ctx);
909 if (target != GL_RENDERBUFFER_EXT) {
910 _mesa_error(ctx, GL_INVALID_ENUM, "glBindRenderbufferEXT(target)");
914 /* No need to flush here since the render buffer binding has no
915 * effect on rendering state.
919 newRb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
920 if (newRb == &DummyRenderbuffer) {
921 /* ID was reserved, but no real renderbuffer object made yet */
925 && _mesa_is_desktop_gl(ctx)
926 && 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_DeleteRenderbuffers(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_BindRenderbuffer(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_GenRenderbuffers(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->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_framebuffer_object
1083 case GL_LUMINANCE12:
1084 case GL_LUMINANCE16:
1085 return ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_framebuffer_object
1087 case GL_LUMINANCE_ALPHA:
1088 case GL_LUMINANCE4_ALPHA4:
1089 case GL_LUMINANCE6_ALPHA2:
1090 case GL_LUMINANCE8_ALPHA8:
1091 case GL_LUMINANCE12_ALPHA4:
1092 case GL_LUMINANCE12_ALPHA12:
1093 case GL_LUMINANCE16_ALPHA16:
1094 return ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_framebuffer_object
1095 ? GL_LUMINANCE_ALPHA : 0;
1099 case GL_INTENSITY12:
1100 case GL_INTENSITY16:
1101 return ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_framebuffer_object
1112 return _mesa_is_desktop_gl(ctx) ? GL_RGB : 0;
1114 return _mesa_is_desktop_gl(ctx) ? GL_RGB : 0;
1123 return _mesa_is_desktop_gl(ctx) ? GL_RGBA : 0;
1125 case GL_SRGB8_ALPHA8_EXT:
1126 return _mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx) ? GL_RGBA : 0;
1127 case GL_STENCIL_INDEX:
1128 case GL_STENCIL_INDEX1_EXT:
1129 case GL_STENCIL_INDEX4_EXT:
1130 case GL_STENCIL_INDEX16_EXT:
1131 /* There are extensions for GL_STENCIL_INDEX1 and GL_STENCIL_INDEX4 in
1132 * OpenGL ES, but Mesa does not currently support them.
1134 return _mesa_is_desktop_gl(ctx) ? GL_STENCIL_INDEX : 0;
1135 case GL_STENCIL_INDEX8_EXT:
1136 return GL_STENCIL_INDEX;
1137 case GL_DEPTH_COMPONENT:
1138 case GL_DEPTH_COMPONENT32:
1139 return _mesa_is_desktop_gl(ctx) ? GL_DEPTH_COMPONENT : 0;
1140 case GL_DEPTH_COMPONENT16:
1141 case GL_DEPTH_COMPONENT24:
1142 return GL_DEPTH_COMPONENT;
1143 case GL_DEPTH_STENCIL_EXT:
1144 return _mesa_is_desktop_gl(ctx)
1145 && ctx->Extensions.EXT_packed_depth_stencil
1146 ? GL_DEPTH_STENCIL_EXT : 0;
1147 case GL_DEPTH24_STENCIL8_EXT:
1148 return ctx->Extensions.EXT_packed_depth_stencil
1149 ? GL_DEPTH_STENCIL_EXT : 0;
1150 case GL_DEPTH_COMPONENT32F:
1151 return ctx->Version >= 30
1152 || (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_depth_buffer_float)
1153 ? GL_DEPTH_COMPONENT : 0;
1154 case GL_DEPTH32F_STENCIL8:
1155 return ctx->Version >= 30
1156 || (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_depth_buffer_float)
1157 ? GL_DEPTH_STENCIL : 0;
1160 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_rg
1163 return ctx->API != API_OPENGLES && ctx->Extensions.ARB_texture_rg
1167 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_rg
1170 return ctx->API != API_OPENGLES && ctx->Extensions.ARB_texture_rg
1172 /* signed normalized texture formats */
1176 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
1181 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
1185 case GL_RGB16_SNORM:
1186 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
1189 case GL_RGBA8_SNORM:
1190 case GL_RGBA16_SNORM:
1191 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
1193 case GL_ALPHA_SNORM:
1194 case GL_ALPHA8_SNORM:
1195 case GL_ALPHA16_SNORM:
1196 return ctx->API == API_OPENGL_COMPAT &&
1197 ctx->Extensions.EXT_texture_snorm &&
1198 ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0;
1201 return (_mesa_is_desktop_gl(ctx) &&
1202 ctx->Extensions.ARB_texture_rg &&
1203 ctx->Extensions.ARB_texture_float) ? GL_RED : 0;
1206 return (_mesa_is_desktop_gl(ctx) &&
1207 ctx->Extensions.ARB_texture_rg &&
1208 ctx->Extensions.ARB_texture_float) ? GL_RG : 0;
1211 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_float)
1215 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_float)
1217 case GL_ALPHA16F_ARB:
1218 case GL_ALPHA32F_ARB:
1219 return ctx->API == API_OPENGL_COMPAT &&
1220 ctx->Extensions.ARB_texture_float &&
1221 ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0;
1222 case GL_LUMINANCE16F_ARB:
1223 case GL_LUMINANCE32F_ARB:
1224 return ctx->API == API_OPENGL_COMPAT &&
1225 ctx->Extensions.ARB_texture_float &&
1226 ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0;
1227 case GL_LUMINANCE_ALPHA16F_ARB:
1228 case GL_LUMINANCE_ALPHA32F_ARB:
1229 return ctx->API == API_OPENGL_COMPAT &&
1230 ctx->Extensions.ARB_texture_float &&
1231 ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0;
1232 case GL_INTENSITY16F_ARB:
1233 case GL_INTENSITY32F_ARB:
1234 return ctx->API == API_OPENGL_COMPAT &&
1235 ctx->Extensions.ARB_texture_float &&
1236 ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;
1238 return (_mesa_is_desktop_gl(ctx)
1239 && ctx->Extensions.EXT_texture_shared_exponent)
1241 case GL_R11F_G11F_B10F:
1242 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_packed_float)
1245 case GL_RGBA8UI_EXT:
1246 case GL_RGBA16UI_EXT:
1247 case GL_RGBA32UI_EXT:
1249 case GL_RGBA16I_EXT:
1250 case GL_RGBA32I_EXT:
1251 return ctx->Version >= 30
1252 || (_mesa_is_desktop_gl(ctx) &&
1253 ctx->Extensions.EXT_texture_integer) ? GL_RGBA : 0;
1256 case GL_RGB16UI_EXT:
1257 case GL_RGB32UI_EXT:
1261 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_integer
1269 return ctx->Version >= 30
1270 || (_mesa_is_desktop_gl(ctx) &&
1271 ctx->Extensions.ARB_texture_rg &&
1272 ctx->Extensions.EXT_texture_integer) ? GL_RED : 0;
1280 return ctx->Version >= 30
1281 || (_mesa_is_desktop_gl(ctx) &&
1282 ctx->Extensions.ARB_texture_rg &&
1283 ctx->Extensions.EXT_texture_integer) ? GL_RG : 0;
1285 case GL_INTENSITY8I_EXT:
1286 case GL_INTENSITY8UI_EXT:
1287 case GL_INTENSITY16I_EXT:
1288 case GL_INTENSITY16UI_EXT:
1289 case GL_INTENSITY32I_EXT:
1290 case GL_INTENSITY32UI_EXT:
1291 return ctx->API == API_OPENGL_COMPAT &&
1292 ctx->Extensions.EXT_texture_integer &&
1293 ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;
1295 case GL_LUMINANCE8I_EXT:
1296 case GL_LUMINANCE8UI_EXT:
1297 case GL_LUMINANCE16I_EXT:
1298 case GL_LUMINANCE16UI_EXT:
1299 case GL_LUMINANCE32I_EXT:
1300 case GL_LUMINANCE32UI_EXT:
1301 return ctx->API == API_OPENGL_COMPAT &&
1302 ctx->Extensions.EXT_texture_integer &&
1303 ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0;
1305 case GL_LUMINANCE_ALPHA8I_EXT:
1306 case GL_LUMINANCE_ALPHA8UI_EXT:
1307 case GL_LUMINANCE_ALPHA16I_EXT:
1308 case GL_LUMINANCE_ALPHA16UI_EXT:
1309 case GL_LUMINANCE_ALPHA32I_EXT:
1310 case GL_LUMINANCE_ALPHA32UI_EXT:
1311 return ctx->API == API_OPENGL_COMPAT &&
1312 ctx->Extensions.EXT_texture_integer &&
1313 ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0;
1315 case GL_ALPHA8I_EXT:
1316 case GL_ALPHA8UI_EXT:
1317 case GL_ALPHA16I_EXT:
1318 case GL_ALPHA16UI_EXT:
1319 case GL_ALPHA32I_EXT:
1320 case GL_ALPHA32UI_EXT:
1321 return ctx->API == API_OPENGL_COMPAT &&
1322 ctx->Extensions.EXT_texture_integer &&
1323 ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0;
1326 return (_mesa_is_desktop_gl(ctx) &&
1327 ctx->Extensions.ARB_texture_rgb10_a2ui)
1328 || _mesa_is_gles3(ctx) ? GL_RGBA : 0;
1331 return _mesa_is_gles(ctx) || ctx->Extensions.ARB_ES2_compatibility
1340 * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk().
1343 invalidate_rb(GLuint key, void *data, void *userData)
1345 struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
1346 struct gl_renderbuffer *rb = (struct gl_renderbuffer *) userData;
1348 /* If this is a user-created FBO */
1349 if (_mesa_is_user_fbo(fb)) {
1351 for (i = 0; i < BUFFER_COUNT; i++) {
1352 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
1353 if (att->Type == GL_RENDERBUFFER &&
1354 att->Renderbuffer == rb) {
1355 /* Mark fb status as indeterminate to force re-validation */
1364 /** sentinal value, see below */
1365 #define NO_SAMPLES 1000
1369 * Helper function used by _mesa_RenderbufferStorage() and
1370 * _mesa_RenderbufferStorageMultisample().
1371 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorage().
1374 renderbuffer_storage(GLenum target, GLenum internalFormat,
1375 GLsizei width, GLsizei height, GLsizei samples)
1377 const char *func = samples == NO_SAMPLES ?
1378 "glRenderbufferStorage" : "glRenderbufferStorageMultisample";
1379 struct gl_renderbuffer *rb;
1381 GET_CURRENT_CONTEXT(ctx);
1383 ASSERT_OUTSIDE_BEGIN_END(ctx);
1385 if (MESA_VERBOSE & VERBOSE_API) {
1386 if (samples == NO_SAMPLES)
1387 _mesa_debug(ctx, "%s(%s, %s, %d, %d)\n",
1389 _mesa_lookup_enum_by_nr(target),
1390 _mesa_lookup_enum_by_nr(internalFormat),
1393 _mesa_debug(ctx, "%s(%s, %s, %d, %d, %d)\n",
1395 _mesa_lookup_enum_by_nr(target),
1396 _mesa_lookup_enum_by_nr(internalFormat),
1397 width, height, samples);
1400 if (target != GL_RENDERBUFFER_EXT) {
1401 _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", func);
1405 baseFormat = _mesa_base_fbo_format(ctx, internalFormat);
1406 if (baseFormat == 0) {
1407 _mesa_error(ctx, GL_INVALID_ENUM, "%s(internalFormat)", func);
1411 if (width < 0 || width > (GLsizei) ctx->Const.MaxRenderbufferSize) {
1412 _mesa_error(ctx, GL_INVALID_VALUE, "%s(width)", func);
1416 if (height < 0 || height > (GLsizei) ctx->Const.MaxRenderbufferSize) {
1417 _mesa_error(ctx, GL_INVALID_VALUE, "%s(height)", func);
1421 if (samples == NO_SAMPLES) {
1422 /* NumSamples == 0 indicates non-multisampling */
1425 else if (samples > (GLsizei) ctx->Const.MaxSamples) {
1426 /* note: driver may choose to use more samples than what's requested */
1427 _mesa_error(ctx, GL_INVALID_VALUE, "%s(samples)", func);
1431 rb = ctx->CurrentRenderbuffer;
1433 _mesa_error(ctx, GL_INVALID_OPERATION, "%s", func);
1437 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1439 if (rb->InternalFormat == internalFormat &&
1440 rb->Width == (GLuint) width &&
1441 rb->Height == (GLuint) height &&
1442 rb->NumSamples == samples) {
1443 /* no change in allocation needed */
1447 /* These MUST get set by the AllocStorage func */
1448 rb->Format = MESA_FORMAT_NONE;
1449 rb->NumSamples = samples;
1451 /* Now allocate the storage */
1452 ASSERT(rb->AllocStorage);
1453 if (rb->AllocStorage(ctx, rb, internalFormat, width, height)) {
1454 /* No error - check/set fields now */
1455 /* If rb->Format == MESA_FORMAT_NONE, the format is unsupported. */
1456 assert(rb->Width == (GLuint) width);
1457 assert(rb->Height == (GLuint) height);
1458 rb->InternalFormat = internalFormat;
1459 rb->_BaseFormat = baseFormat;
1460 assert(rb->_BaseFormat != 0);
1463 /* Probably ran out of memory - clear the fields */
1466 rb->Format = MESA_FORMAT_NONE;
1467 rb->InternalFormat = GL_NONE;
1468 rb->_BaseFormat = GL_NONE;
1472 /* Invalidate the framebuffers the renderbuffer is attached in. */
1473 if (rb->AttachedAnytime) {
1474 _mesa_HashWalk(ctx->Shared->FrameBuffers, invalidate_rb, rb);
1480 _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image)
1482 struct gl_renderbuffer *rb;
1483 GET_CURRENT_CONTEXT(ctx);
1484 ASSERT_OUTSIDE_BEGIN_END(ctx);
1486 if (!ctx->Extensions.OES_EGL_image) {
1487 _mesa_error(ctx, GL_INVALID_OPERATION,
1488 "glEGLImageTargetRenderbufferStorageOES(unsupported)");
1492 if (target != GL_RENDERBUFFER) {
1493 _mesa_error(ctx, GL_INVALID_ENUM,
1494 "EGLImageTargetRenderbufferStorageOES");
1498 rb = ctx->CurrentRenderbuffer;
1500 _mesa_error(ctx, GL_INVALID_OPERATION,
1501 "EGLImageTargetRenderbufferStorageOES");
1505 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1507 ctx->Driver.EGLImageTargetRenderbufferStorage(ctx, rb, image);
1512 * Helper function for _mesa_GetRenderbufferParameteriv() and
1513 * _mesa_GetFramebufferAttachmentParameteriv()
1514 * We have to be careful to respect the base format. For example, if a
1515 * renderbuffer/texture was created with internalFormat=GL_RGB but the
1516 * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
1517 * we need to return zero.
1520 get_component_bits(GLenum pname, GLenum baseFormat, gl_format format)
1522 if (_mesa_base_format_has_channel(baseFormat, pname))
1523 return _mesa_get_format_bits(format, pname);
1531 _mesa_RenderbufferStorage(GLenum target, GLenum internalFormat,
1532 GLsizei width, GLsizei height)
1534 /* GL_ARB_fbo says calling this function is equivalent to calling
1535 * glRenderbufferStorageMultisample() with samples=0. We pass in
1536 * a token value here just for error reporting purposes.
1538 renderbuffer_storage(target, internalFormat, width, height, NO_SAMPLES);
1543 _mesa_RenderbufferStorageMultisample(GLenum target, GLsizei samples,
1544 GLenum internalFormat,
1545 GLsizei width, GLsizei height)
1547 renderbuffer_storage(target, internalFormat, width, height, samples);
1552 * OpenGL ES version of glRenderBufferStorage.
1555 _es_RenderbufferStorageEXT(GLenum target, GLenum internalFormat,
1556 GLsizei width, GLsizei height)
1558 switch (internalFormat) {
1560 /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
1561 /* choose a closest format */
1562 internalFormat = GL_RGB5;
1568 renderbuffer_storage(target, internalFormat, width, height, 0);
1573 _mesa_GetRenderbufferParameteriv(GLenum target, GLenum pname, GLint *params)
1575 struct gl_renderbuffer *rb;
1576 GET_CURRENT_CONTEXT(ctx);
1578 ASSERT_OUTSIDE_BEGIN_END(ctx);
1580 if (target != GL_RENDERBUFFER_EXT) {
1581 _mesa_error(ctx, GL_INVALID_ENUM,
1582 "glGetRenderbufferParameterivEXT(target)");
1586 rb = ctx->CurrentRenderbuffer;
1588 _mesa_error(ctx, GL_INVALID_OPERATION,
1589 "glGetRenderbufferParameterivEXT");
1593 /* No need to flush here since we're just quering state which is
1594 * not effected by rendering.
1598 case GL_RENDERBUFFER_WIDTH_EXT:
1599 *params = rb->Width;
1601 case GL_RENDERBUFFER_HEIGHT_EXT:
1602 *params = rb->Height;
1604 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT:
1605 *params = rb->InternalFormat;
1607 case GL_RENDERBUFFER_RED_SIZE_EXT:
1608 case GL_RENDERBUFFER_GREEN_SIZE_EXT:
1609 case GL_RENDERBUFFER_BLUE_SIZE_EXT:
1610 case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
1611 case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
1612 case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
1613 *params = get_component_bits(pname, rb->_BaseFormat, rb->Format);
1615 case GL_RENDERBUFFER_SAMPLES:
1616 if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_framebuffer_object)
1617 || _mesa_is_gles3(ctx)) {
1618 *params = rb->NumSamples;
1623 _mesa_error(ctx, GL_INVALID_ENUM,
1624 "glGetRenderbufferParameterivEXT(target)");
1630 GLboolean GLAPIENTRY
1631 _mesa_IsFramebuffer(GLuint framebuffer)
1633 GET_CURRENT_CONTEXT(ctx);
1634 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
1636 struct gl_framebuffer *rb = _mesa_lookup_framebuffer(ctx, framebuffer);
1637 if (rb != NULL && rb != &DummyFramebuffer)
1645 * Check if any of the attachments of the given framebuffer are textures
1646 * (render to texture). Call ctx->Driver.RenderTexture() for such
1650 check_begin_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
1653 ASSERT(ctx->Driver.RenderTexture);
1655 if (_mesa_is_winsys_fbo(fb))
1656 return; /* can't render to texture with winsys framebuffers */
1658 for (i = 0; i < BUFFER_COUNT; i++) {
1659 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
1660 if (att->Texture && _mesa_get_attachment_teximage(att)) {
1661 ctx->Driver.RenderTexture(ctx, fb, att);
1668 * Examine all the framebuffer's attachments to see if any are textures.
1669 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
1670 * notify the device driver that the texture image may have changed.
1673 check_end_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
1675 if (_mesa_is_winsys_fbo(fb))
1676 return; /* can't render to texture with winsys framebuffers */
1678 if (ctx->Driver.FinishRenderTexture) {
1680 for (i = 0; i < BUFFER_COUNT; i++) {
1681 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
1682 if (att->Texture && att->Renderbuffer) {
1683 ctx->Driver.FinishRenderTexture(ctx, att);
1691 _mesa_BindFramebuffer(GLenum target, GLuint framebuffer)
1693 struct gl_framebuffer *newDrawFb, *newReadFb;
1694 struct gl_framebuffer *oldDrawFb, *oldReadFb;
1695 GLboolean bindReadBuf, bindDrawBuf;
1696 GET_CURRENT_CONTEXT(ctx);
1699 if (ctx->Extensions.ARB_framebuffer_object) {
1700 ASSERT(ctx->Extensions.EXT_framebuffer_object);
1701 ASSERT(ctx->Extensions.EXT_framebuffer_blit);
1705 ASSERT_OUTSIDE_BEGIN_END(ctx);
1707 if (!ctx->Extensions.EXT_framebuffer_object) {
1708 _mesa_error(ctx, GL_INVALID_OPERATION,
1709 "glBindFramebufferEXT(unsupported)");
1714 case GL_DRAW_FRAMEBUFFER_EXT:
1715 if (!ctx->Extensions.EXT_framebuffer_blit) {
1716 _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
1719 bindDrawBuf = GL_TRUE;
1720 bindReadBuf = GL_FALSE;
1722 case GL_READ_FRAMEBUFFER_EXT:
1723 if (!ctx->Extensions.EXT_framebuffer_blit) {
1724 _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
1727 bindDrawBuf = GL_FALSE;
1728 bindReadBuf = GL_TRUE;
1730 case GL_FRAMEBUFFER_EXT:
1731 bindDrawBuf = GL_TRUE;
1732 bindReadBuf = GL_TRUE;
1735 _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
1740 /* Binding a user-created framebuffer object */
1741 newDrawFb = _mesa_lookup_framebuffer(ctx, framebuffer);
1742 if (newDrawFb == &DummyFramebuffer) {
1743 /* ID was reserved, but no real framebuffer object made yet */
1747 && _mesa_is_desktop_gl(ctx)
1748 && ctx->Extensions.ARB_framebuffer_object) {
1749 /* All FBO IDs must be Gen'd */
1750 _mesa_error(ctx, GL_INVALID_OPERATION, "glBindFramebuffer(buffer)");
1755 /* create new framebuffer object */
1756 newDrawFb = ctx->Driver.NewFramebuffer(ctx, framebuffer);
1758 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindFramebufferEXT");
1761 _mesa_HashInsert(ctx->Shared->FrameBuffers, framebuffer, newDrawFb);
1763 newReadFb = newDrawFb;
1766 /* Binding the window system framebuffer (which was originally set
1767 * with MakeCurrent).
1769 newDrawFb = ctx->WinSysDrawBuffer;
1770 newReadFb = ctx->WinSysReadBuffer;
1774 ASSERT(newDrawFb != &DummyFramebuffer);
1776 /* save pointers to current/old framebuffers */
1777 oldDrawFb = ctx->DrawBuffer;
1778 oldReadFb = ctx->ReadBuffer;
1780 /* check if really changing bindings */
1781 if (oldDrawFb == newDrawFb)
1782 bindDrawBuf = GL_FALSE;
1783 if (oldReadFb == newReadFb)
1784 bindReadBuf = GL_FALSE;
1787 * OK, now bind the new Draw/Read framebuffers, if they're changing.
1789 * We also check if we're beginning and/or ending render-to-texture.
1790 * When a framebuffer with texture attachments is unbound, call
1791 * ctx->Driver.FinishRenderTexture().
1792 * When a framebuffer with texture attachments is bound, call
1793 * ctx->Driver.RenderTexture().
1795 * Note that if the ReadBuffer has texture attachments we don't consider
1796 * that a render-to-texture case.
1799 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1801 /* check if old readbuffer was render-to-texture */
1802 check_end_texture_render(ctx, oldReadFb);
1804 _mesa_reference_framebuffer(&ctx->ReadBuffer, newReadFb);
1808 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1810 /* check if old framebuffer had any texture attachments */
1812 check_end_texture_render(ctx, oldDrawFb);
1814 /* check if newly bound framebuffer has any texture attachments */
1815 check_begin_texture_render(ctx, newDrawFb);
1817 _mesa_reference_framebuffer(&ctx->DrawBuffer, newDrawFb);
1820 if ((bindDrawBuf || bindReadBuf) && ctx->Driver.BindFramebuffer) {
1821 ctx->Driver.BindFramebuffer(ctx, target, newDrawFb, newReadFb);
1827 _mesa_DeleteFramebuffers(GLsizei n, const GLuint *framebuffers)
1830 GET_CURRENT_CONTEXT(ctx);
1832 ASSERT_OUTSIDE_BEGIN_END(ctx);
1833 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1835 for (i = 0; i < n; i++) {
1836 if (framebuffers[i] > 0) {
1837 struct gl_framebuffer *fb;
1838 fb = _mesa_lookup_framebuffer(ctx, framebuffers[i]);
1840 ASSERT(fb == &DummyFramebuffer || fb->Name == framebuffers[i]);
1842 /* check if deleting currently bound framebuffer object */
1843 if (ctx->Extensions.EXT_framebuffer_blit) {
1844 /* separate draw/read binding points */
1845 if (fb == ctx->DrawBuffer) {
1847 ASSERT(fb->RefCount >= 2);
1848 _mesa_BindFramebuffer(GL_DRAW_FRAMEBUFFER_EXT, 0);
1850 if (fb == ctx->ReadBuffer) {
1852 ASSERT(fb->RefCount >= 2);
1853 _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER_EXT, 0);
1857 /* only one binding point for read/draw buffers */
1858 if (fb == ctx->DrawBuffer || fb == ctx->ReadBuffer) {
1860 ASSERT(fb->RefCount >= 2);
1861 _mesa_BindFramebuffer(GL_FRAMEBUFFER_EXT, 0);
1865 /* remove from hash table immediately, to free the ID */
1866 _mesa_HashRemove(ctx->Shared->FrameBuffers, framebuffers[i]);
1868 if (fb != &DummyFramebuffer) {
1869 /* But the object will not be freed until it's no longer
1870 * bound in any context.
1872 _mesa_reference_framebuffer(&fb, NULL);
1881 _mesa_GenFramebuffers(GLsizei n, GLuint *framebuffers)
1883 GET_CURRENT_CONTEXT(ctx);
1887 ASSERT_OUTSIDE_BEGIN_END(ctx);
1890 _mesa_error(ctx, GL_INVALID_VALUE, "glGenFramebuffersEXT(n)");
1897 first = _mesa_HashFindFreeKeyBlock(ctx->Shared->FrameBuffers, n);
1899 for (i = 0; i < n; i++) {
1900 GLuint name = first + i;
1901 framebuffers[i] = name;
1902 /* insert dummy placeholder into hash table */
1903 _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
1904 _mesa_HashInsert(ctx->Shared->FrameBuffers, name, &DummyFramebuffer);
1905 _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
1912 _mesa_CheckFramebufferStatus(GLenum target)
1914 struct gl_framebuffer *buffer;
1915 GET_CURRENT_CONTEXT(ctx);
1917 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
1919 if (MESA_VERBOSE & VERBOSE_API)
1920 _mesa_debug(ctx, "glCheckFramebufferStatus(%s)\n",
1921 _mesa_lookup_enum_by_nr(target));
1923 buffer = get_framebuffer_target(ctx, target);
1925 _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");
1929 if (_mesa_is_winsys_fbo(buffer)) {
1930 /* The window system / default framebuffer is always complete */
1931 return GL_FRAMEBUFFER_COMPLETE_EXT;
1934 /* No need to flush here */
1936 if (buffer->_Status != GL_FRAMEBUFFER_COMPLETE) {
1937 _mesa_test_framebuffer_completeness(ctx, buffer);
1940 return buffer->_Status;
1945 * Replicate the src attachment point. Used by framebuffer_texture() when
1946 * the same texture is attached at GL_DEPTH_ATTACHMENT and
1947 * GL_STENCIL_ATTACHMENT.
1950 reuse_framebuffer_texture_attachment(struct gl_framebuffer *fb,
1951 gl_buffer_index dst,
1952 gl_buffer_index src)
1954 struct gl_renderbuffer_attachment *dst_att = &fb->Attachment[dst];
1955 struct gl_renderbuffer_attachment *src_att = &fb->Attachment[src];
1957 assert(src_att->Texture != NULL);
1958 assert(src_att->Renderbuffer != NULL);
1960 _mesa_reference_texobj(&dst_att->Texture, src_att->Texture);
1961 _mesa_reference_renderbuffer(&dst_att->Renderbuffer, src_att->Renderbuffer);
1962 dst_att->Type = src_att->Type;
1963 dst_att->Complete = src_att->Complete;
1964 dst_att->TextureLevel = src_att->TextureLevel;
1965 dst_att->Zoffset = src_att->Zoffset;
1970 * Common code called by glFramebufferTexture1D/2D/3DEXT() and
1971 * glFramebufferTextureLayerEXT().
1972 * Note: glFramebufferTextureLayerEXT() has no textarget parameter so we'll
1973 * get textarget=0 in that case.
1976 framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
1977 GLenum attachment, GLenum textarget, GLuint texture,
1978 GLint level, GLint zoffset)
1980 struct gl_renderbuffer_attachment *att;
1981 struct gl_texture_object *texObj = NULL;
1982 struct gl_framebuffer *fb;
1983 GLenum maxLevelsTarget;
1985 ASSERT_OUTSIDE_BEGIN_END(ctx);
1987 fb = get_framebuffer_target(ctx, target);
1989 _mesa_error(ctx, GL_INVALID_ENUM,
1990 "glFramebufferTexture%sEXT(target=0x%x)", caller, target);
1994 /* check framebuffer binding */
1995 if (_mesa_is_winsys_fbo(fb)) {
1996 _mesa_error(ctx, GL_INVALID_OPERATION,
1997 "glFramebufferTexture%sEXT", caller);
2001 /* The textarget, level, and zoffset parameters are only validated if
2002 * texture is non-zero.
2005 GLboolean err = GL_TRUE;
2007 texObj = _mesa_lookup_texture(ctx, texture);
2008 if (texObj != NULL) {
2009 if (textarget == 0) {
2010 /* If textarget == 0 it means we're being called by
2011 * glFramebufferTextureLayer() and textarget is not used.
2012 * The only legal texture types for that function are 3D and
2013 * 1D/2D arrays textures.
2015 err = (texObj->Target != GL_TEXTURE_3D) &&
2016 (texObj->Target != GL_TEXTURE_1D_ARRAY_EXT) &&
2017 (texObj->Target != GL_TEXTURE_2D_ARRAY_EXT) &&
2018 (texObj->Target != GL_TEXTURE_CUBE_MAP_ARRAY);
2021 /* Make sure textarget is consistent with the texture's type */
2022 err = (texObj->Target == GL_TEXTURE_CUBE_MAP)
2023 ? !_mesa_is_cube_face(textarget)
2024 : (texObj->Target != textarget);
2028 /* can't render to a non-existant texture */
2029 _mesa_error(ctx, GL_INVALID_OPERATION,
2030 "glFramebufferTexture%sEXT(non existant texture)",
2036 _mesa_error(ctx, GL_INVALID_OPERATION,
2037 "glFramebufferTexture%sEXT(texture target mismatch)",
2042 if (texObj->Target == GL_TEXTURE_3D) {
2043 const GLint maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
2044 if (zoffset < 0 || zoffset >= maxSize) {
2045 _mesa_error(ctx, GL_INVALID_VALUE,
2046 "glFramebufferTexture%sEXT(zoffset)", caller);
2050 else if ((texObj->Target == GL_TEXTURE_1D_ARRAY_EXT) ||
2051 (texObj->Target == GL_TEXTURE_2D_ARRAY_EXT) ||
2052 (texObj->Target == GL_TEXTURE_CUBE_MAP_ARRAY)) {
2054 zoffset >= (GLint) ctx->Const.MaxArrayTextureLayers) {
2055 _mesa_error(ctx, GL_INVALID_VALUE,
2056 "glFramebufferTexture%sEXT(layer)", caller);
2061 maxLevelsTarget = textarget ? textarget : texObj->Target;
2063 (level >= _mesa_max_texture_levels(ctx, maxLevelsTarget))) {
2064 _mesa_error(ctx, GL_INVALID_VALUE,
2065 "glFramebufferTexture%sEXT(level)", caller);
2070 att = _mesa_get_attachment(ctx, fb, attachment);
2072 _mesa_error(ctx, GL_INVALID_ENUM,
2073 "glFramebufferTexture%sEXT(attachment)", caller);
2077 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
2079 _glthread_LOCK_MUTEX(fb->Mutex);
2081 if (attachment == GL_DEPTH_ATTACHMENT &&
2082 texObj == fb->Attachment[BUFFER_STENCIL].Texture &&
2083 level == fb->Attachment[BUFFER_STENCIL].TextureLevel &&
2084 _mesa_tex_target_to_face(textarget) ==
2085 fb->Attachment[BUFFER_STENCIL].CubeMapFace &&
2086 zoffset == fb->Attachment[BUFFER_STENCIL].Zoffset) {
2087 /* The texture object is already attached to the stencil attachment
2088 * point. Don't create a new renderbuffer; just reuse the stencil
2089 * attachment's. This is required to prevent a GL error in
2090 * glGetFramebufferAttachmentParameteriv(GL_DEPTH_STENCIL).
2092 reuse_framebuffer_texture_attachment(fb, BUFFER_DEPTH,
2094 } else if (attachment == GL_STENCIL_ATTACHMENT &&
2095 texObj == fb->Attachment[BUFFER_DEPTH].Texture &&
2096 level == fb->Attachment[BUFFER_DEPTH].TextureLevel &&
2097 _mesa_tex_target_to_face(textarget) ==
2098 fb->Attachment[BUFFER_DEPTH].CubeMapFace &&
2099 zoffset == fb->Attachment[BUFFER_DEPTH].Zoffset) {
2100 /* As above, but with depth and stencil transposed. */
2101 reuse_framebuffer_texture_attachment(fb, BUFFER_STENCIL,
2104 _mesa_set_texture_attachment(ctx, fb, att, texObj, textarget,
2106 if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
2107 /* Above we created a new renderbuffer and attached it to the
2108 * depth attachment point. Now attach it to the stencil attachment
2111 assert(att == &fb->Attachment[BUFFER_DEPTH]);
2112 reuse_framebuffer_texture_attachment(fb,BUFFER_STENCIL,
2117 /* Set the render-to-texture flag. We'll check this flag in
2118 * glTexImage() and friends to determine if we need to revalidate
2119 * any FBOs that might be rendering into this texture.
2120 * This flag never gets cleared since it's non-trivial to determine
2121 * when all FBOs might be done rendering to this texture. That's OK
2122 * though since it's uncommon to render to a texture then repeatedly
2123 * call glTexImage() to change images in the texture.
2125 texObj->_RenderToTexture = GL_TRUE;
2128 _mesa_remove_attachment(ctx, att);
2129 if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
2130 assert(att == &fb->Attachment[BUFFER_DEPTH]);
2131 _mesa_remove_attachment(ctx, &fb->Attachment[BUFFER_STENCIL]);
2135 invalidate_framebuffer(fb);
2137 _glthread_UNLOCK_MUTEX(fb->Mutex);
2143 _mesa_FramebufferTexture1D(GLenum target, GLenum attachment,
2144 GLenum textarget, GLuint texture, GLint level)
2146 GET_CURRENT_CONTEXT(ctx);
2151 switch (textarget) {
2155 case GL_TEXTURE_1D_ARRAY:
2156 error = !ctx->Extensions.EXT_texture_array;
2163 _mesa_error(ctx, GL_INVALID_OPERATION,
2164 "glFramebufferTexture1DEXT(textarget=%s)",
2165 _mesa_lookup_enum_by_nr(textarget));
2170 framebuffer_texture(ctx, "1D", target, attachment, textarget, texture,
2176 _mesa_FramebufferTexture2D(GLenum target, GLenum attachment,
2177 GLenum textarget, GLuint texture, GLint level)
2179 GET_CURRENT_CONTEXT(ctx);
2184 switch (textarget) {
2188 case GL_TEXTURE_RECTANGLE:
2189 error = _mesa_is_gles(ctx)
2190 || !ctx->Extensions.NV_texture_rectangle;
2192 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
2193 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
2194 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
2195 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
2196 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
2197 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
2198 error = !ctx->Extensions.ARB_texture_cube_map;
2200 case GL_TEXTURE_2D_ARRAY:
2201 error = (_mesa_is_gles(ctx) && ctx->Version < 30)
2202 || !ctx->Extensions.EXT_texture_array;
2209 _mesa_error(ctx, GL_INVALID_OPERATION,
2210 "glFramebufferTexture2DEXT(textarget=%s)",
2211 _mesa_lookup_enum_by_nr(textarget));
2216 framebuffer_texture(ctx, "2D", target, attachment, textarget, texture,
2222 _mesa_FramebufferTexture3D(GLenum target, GLenum attachment,
2223 GLenum textarget, GLuint texture,
2224 GLint level, GLint zoffset)
2226 GET_CURRENT_CONTEXT(ctx);
2228 if ((texture != 0) && (textarget != GL_TEXTURE_3D)) {
2229 _mesa_error(ctx, GL_INVALID_OPERATION,
2230 "glFramebufferTexture3DEXT(textarget)");
2234 framebuffer_texture(ctx, "3D", target, attachment, textarget, texture,
2240 _mesa_FramebufferTextureLayer(GLenum target, GLenum attachment,
2241 GLuint texture, GLint level, GLint layer)
2243 GET_CURRENT_CONTEXT(ctx);
2245 framebuffer_texture(ctx, "Layer", target, attachment, 0, texture,
2251 _mesa_FramebufferRenderbuffer(GLenum target, GLenum attachment,
2252 GLenum renderbufferTarget,
2253 GLuint renderbuffer)
2255 struct gl_renderbuffer_attachment *att;
2256 struct gl_framebuffer *fb;
2257 struct gl_renderbuffer *rb;
2258 GET_CURRENT_CONTEXT(ctx);
2260 ASSERT_OUTSIDE_BEGIN_END(ctx);
2262 fb = get_framebuffer_target(ctx, target);
2264 _mesa_error(ctx, GL_INVALID_ENUM, "glFramebufferRenderbufferEXT(target)");
2268 if (renderbufferTarget != GL_RENDERBUFFER_EXT) {
2269 _mesa_error(ctx, GL_INVALID_ENUM,
2270 "glFramebufferRenderbufferEXT(renderbufferTarget)");
2274 if (_mesa_is_winsys_fbo(fb)) {
2275 /* Can't attach new renderbuffers to a window system framebuffer */
2276 _mesa_error(ctx, GL_INVALID_OPERATION, "glFramebufferRenderbufferEXT");
2280 att = _mesa_get_attachment(ctx, fb, attachment);
2282 _mesa_error(ctx, GL_INVALID_ENUM,
2283 "glFramebufferRenderbufferEXT(invalid attachment %s)",
2284 _mesa_lookup_enum_by_nr(attachment));
2289 rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
2291 _mesa_error(ctx, GL_INVALID_OPERATION,
2292 "glFramebufferRenderbufferEXT(non-existant"
2293 " renderbuffer %u)", renderbuffer);
2296 else if (rb == &DummyRenderbuffer) {
2297 /* This is what NVIDIA does */
2298 _mesa_error(ctx, GL_INVALID_VALUE,
2299 "glFramebufferRenderbufferEXT(renderbuffer %u)",
2305 /* remove renderbuffer attachment */
2309 if (attachment == GL_DEPTH_STENCIL_ATTACHMENT &&
2310 rb && rb->Format != MESA_FORMAT_NONE) {
2311 /* make sure the renderbuffer is a depth/stencil format */
2312 const GLenum baseFormat = _mesa_get_format_base_format(rb->Format);
2313 if (baseFormat != GL_DEPTH_STENCIL) {
2314 _mesa_error(ctx, GL_INVALID_OPERATION,
2315 "glFramebufferRenderbufferEXT(renderbuffer"
2316 " is not DEPTH_STENCIL format)");
2322 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
2324 assert(ctx->Driver.FramebufferRenderbuffer);
2325 ctx->Driver.FramebufferRenderbuffer(ctx, fb, attachment, rb);
2327 /* Some subsequent GL commands may depend on the framebuffer's visual
2328 * after the binding is updated. Update visual info now.
2330 _mesa_update_framebuffer_visual(ctx, fb);
2335 _mesa_GetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment,
2336 GLenum pname, GLint *params)
2338 const struct gl_renderbuffer_attachment *att;
2339 struct gl_framebuffer *buffer;
2341 GET_CURRENT_CONTEXT(ctx);
2343 ASSERT_OUTSIDE_BEGIN_END(ctx);
2345 /* The error differs in GL and GLES. */
2346 err = _mesa_is_desktop_gl(ctx) ? GL_INVALID_OPERATION : GL_INVALID_ENUM;
2348 buffer = get_framebuffer_target(ctx, target);
2350 _mesa_error(ctx, GL_INVALID_ENUM,
2351 "glGetFramebufferAttachmentParameterivEXT(target)");
2355 if (_mesa_is_winsys_fbo(buffer)) {
2356 /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
2359 * "If the framebuffer currently bound to target is zero, then
2360 * INVALID_OPERATION is generated."
2362 * The EXT_framebuffer_object spec has the same wording, and the
2363 * OES_framebuffer_object spec refers to the EXT_framebuffer_object
2366 if (!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_framebuffer_object) {
2367 _mesa_error(ctx, GL_INVALID_OPERATION,
2368 "glGetFramebufferAttachmentParameteriv(bound FBO = 0)");
2371 /* the default / window-system FBO */
2372 att = _mesa_get_fb0_attachment(ctx, buffer, attachment);
2375 /* user-created framebuffer FBO */
2376 att = _mesa_get_attachment(ctx, buffer, attachment);
2380 _mesa_error(ctx, GL_INVALID_ENUM,
2381 "glGetFramebufferAttachmentParameterivEXT(attachment)");
2385 if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
2386 /* the depth and stencil attachments must point to the same buffer */
2387 const struct gl_renderbuffer_attachment *depthAtt, *stencilAtt;
2388 depthAtt = _mesa_get_attachment(ctx, buffer, GL_DEPTH_ATTACHMENT);
2389 stencilAtt = _mesa_get_attachment(ctx, buffer, GL_STENCIL_ATTACHMENT);
2390 if (depthAtt->Renderbuffer != stencilAtt->Renderbuffer) {
2391 _mesa_error(ctx, GL_INVALID_OPERATION,
2392 "glGetFramebufferAttachmentParameterivEXT(DEPTH/STENCIL"
2393 " attachments differ)");
2398 /* No need to flush here */
2401 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT:
2402 *params = _mesa_is_winsys_fbo(buffer)
2403 ? GL_FRAMEBUFFER_DEFAULT : att->Type;
2405 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT:
2406 if (att->Type == GL_RENDERBUFFER_EXT) {
2407 *params = att->Renderbuffer->Name;
2409 else if (att->Type == GL_TEXTURE) {
2410 *params = att->Texture->Name;
2413 assert(att->Type == GL_NONE);
2414 if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) {
2417 goto invalid_pname_enum;
2421 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT:
2422 if (att->Type == GL_TEXTURE) {
2423 *params = att->TextureLevel;
2425 else if (att->Type == GL_NONE) {
2426 _mesa_error(ctx, err,
2427 "glGetFramebufferAttachmentParameterivEXT(pname)");
2430 goto invalid_pname_enum;
2433 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT:
2434 if (att->Type == GL_TEXTURE) {
2435 if (att->Texture && att->Texture->Target == GL_TEXTURE_CUBE_MAP) {
2436 *params = GL_TEXTURE_CUBE_MAP_POSITIVE_X + att->CubeMapFace;
2442 else if (att->Type == GL_NONE) {
2443 _mesa_error(ctx, err,
2444 "glGetFramebufferAttachmentParameterivEXT(pname)");
2447 goto invalid_pname_enum;
2450 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT:
2451 if (ctx->API == API_OPENGLES) {
2452 goto invalid_pname_enum;
2453 } else if (att->Type == GL_NONE) {
2454 _mesa_error(ctx, err,
2455 "glGetFramebufferAttachmentParameterivEXT(pname)");
2456 } else if (att->Type == GL_TEXTURE) {
2457 if (att->Texture && att->Texture->Target == GL_TEXTURE_3D) {
2458 *params = att->Zoffset;
2465 goto invalid_pname_enum;
2468 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING:
2469 if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_framebuffer_object)
2470 && !_mesa_is_gles3(ctx)) {
2471 goto invalid_pname_enum;
2473 else if (att->Type == GL_NONE) {
2474 _mesa_error(ctx, err,
2475 "glGetFramebufferAttachmentParameterivEXT(pname)");
2478 if (ctx->Extensions.EXT_framebuffer_sRGB) {
2479 *params = _mesa_get_format_color_encoding(att->Renderbuffer->Format);
2482 /* According to ARB_framebuffer_sRGB, we should return LINEAR
2483 * if the sRGB conversion is unsupported. */
2484 *params = GL_LINEAR;
2488 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE:
2489 if ((ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.ARB_framebuffer_object)
2490 && ctx->API != API_OPENGL_CORE
2491 && !_mesa_is_gles3(ctx)) {
2492 goto invalid_pname_enum;
2494 else if (att->Type == GL_NONE) {
2495 _mesa_error(ctx, err,
2496 "glGetFramebufferAttachmentParameterivEXT(pname)");
2499 gl_format format = att->Renderbuffer->Format;
2500 if (format == MESA_FORMAT_S8) {
2504 else if (format == MESA_FORMAT_Z32_FLOAT_X24S8) {
2505 /* depends on the attachment parameter */
2506 if (attachment == GL_STENCIL_ATTACHMENT) {
2514 *params = _mesa_get_format_datatype(format);
2518 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
2519 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
2520 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
2521 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
2522 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
2523 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
2524 if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_framebuffer_object)
2525 && !_mesa_is_gles3(ctx)) {
2526 goto invalid_pname_enum;
2528 else if (att->Type == GL_NONE) {
2529 _mesa_error(ctx, err,
2530 "glGetFramebufferAttachmentParameterivEXT(pname)");
2532 else if (att->Texture) {
2533 const struct gl_texture_image *texImage =
2534 _mesa_select_tex_image(ctx, att->Texture, att->Texture->Target,
2537 *params = get_component_bits(pname, texImage->_BaseFormat,
2538 texImage->TexFormat);
2544 else if (att->Renderbuffer) {
2545 *params = get_component_bits(pname, att->Renderbuffer->_BaseFormat,
2546 att->Renderbuffer->Format);
2549 _mesa_problem(ctx, "glGetFramebufferAttachmentParameterivEXT:"
2550 " invalid FBO attachment structure");
2554 goto invalid_pname_enum;
2560 _mesa_error(ctx, GL_INVALID_ENUM,
2561 "glGetFramebufferAttachmentParameteriv(pname)");
2567 _mesa_GenerateMipmap(GLenum target)
2569 struct gl_texture_image *srcImage;
2570 struct gl_texture_object *texObj;
2573 GET_CURRENT_CONTEXT(ctx);
2575 ASSERT_OUTSIDE_BEGIN_END(ctx);
2576 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
2580 error = _mesa_is_gles(ctx);
2586 error = ctx->API == API_OPENGLES;
2588 case GL_TEXTURE_CUBE_MAP:
2589 error = !ctx->Extensions.ARB_texture_cube_map;
2591 case GL_TEXTURE_1D_ARRAY:
2592 error = _mesa_is_gles(ctx) || !ctx->Extensions.EXT_texture_array;
2594 case GL_TEXTURE_2D_ARRAY:
2595 error = (_mesa_is_gles(ctx) && ctx->Version < 30)
2596 || !ctx->Extensions.EXT_texture_array;
2603 _mesa_error(ctx, GL_INVALID_ENUM, "glGenerateMipmapEXT(target=%s)",
2604 _mesa_lookup_enum_by_nr(target));
2608 texObj = _mesa_get_current_tex_object(ctx, target);
2610 if (texObj->BaseLevel >= texObj->MaxLevel) {
2615 if (texObj->Target == GL_TEXTURE_CUBE_MAP &&
2616 !_mesa_cube_complete(texObj)) {
2617 _mesa_error(ctx, GL_INVALID_OPERATION,
2618 "glGenerateMipmap(incomplete cube map)");
2622 _mesa_lock_texture(ctx, texObj);
2624 srcImage = _mesa_select_tex_image(ctx, texObj, target, texObj->BaseLevel);
2626 _mesa_unlock_texture(ctx, texObj);
2627 _mesa_error(ctx, GL_INVALID_OPERATION,
2628 "glGenerateMipmap(zero size base image)");
2632 if (_mesa_is_enum_format_integer(srcImage->InternalFormat) ||
2633 _mesa_is_depthstencil_format(srcImage->InternalFormat) ||
2634 _mesa_is_stencil_format(srcImage->InternalFormat)) {
2635 _mesa_unlock_texture(ctx, texObj);
2636 _mesa_error(ctx, GL_INVALID_OPERATION,
2637 "glGenerateMipmap(invalid internal format)");
2641 if (target == GL_TEXTURE_CUBE_MAP) {
2643 for (face = 0; face < 6; face++)
2644 ctx->Driver.GenerateMipmap(ctx,
2645 GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + face,
2649 ctx->Driver.GenerateMipmap(ctx, target, texObj);
2651 _mesa_unlock_texture(ctx, texObj);
2655 static const struct gl_renderbuffer_attachment *
2656 find_attachment(const struct gl_framebuffer *fb,
2657 const struct gl_renderbuffer *rb)
2660 for (i = 0; i < Elements(fb->Attachment); i++) {
2661 if (fb->Attachment[i].Renderbuffer == rb)
2662 return &fb->Attachment[i];
2669 * Helper function for checking if the datatypes of color buffers are
2670 * compatible for glBlitFramebuffer. From the 3.1 spec, page 198:
2672 * "GL_INVALID_OPERATION is generated if mask contains GL_COLOR_BUFFER_BIT
2673 * and any of the following conditions hold:
2674 * - The read buffer contains fixed-point or floating-point values and any
2675 * draw buffer contains neither fixed-point nor floating-point values.
2676 * - The read buffer contains unsigned integer values and any draw buffer
2677 * does not contain unsigned integer values.
2678 * - The read buffer contains signed integer values and any draw buffer
2679 * does not contain signed integer values."
2682 compatible_color_datatypes(gl_format srcFormat, gl_format dstFormat)
2684 GLenum srcType = _mesa_get_format_datatype(srcFormat);
2685 GLenum dstType = _mesa_get_format_datatype(dstFormat);
2687 if (srcType != GL_INT && srcType != GL_UNSIGNED_INT) {
2688 assert(srcType == GL_UNSIGNED_NORMALIZED ||
2689 srcType == GL_SIGNED_NORMALIZED ||
2690 srcType == GL_FLOAT);
2691 /* Boil any of those types down to GL_FLOAT */
2695 if (dstType != GL_INT && dstType != GL_UNSIGNED_INT) {
2696 assert(dstType == GL_UNSIGNED_NORMALIZED ||
2697 dstType == GL_SIGNED_NORMALIZED ||
2698 dstType == GL_FLOAT);
2699 /* Boil any of those types down to GL_FLOAT */
2703 return srcType == dstType;
2708 compatible_resolve_formats(const struct gl_renderbuffer *readRb,
2709 const struct gl_renderbuffer *drawRb)
2711 GLenum readFormat, drawFormat;
2713 /* The simple case where we know the backing Mesa formats are the same.
2715 if (_mesa_get_srgb_format_linear(readRb->Format) ==
2716 _mesa_get_srgb_format_linear(drawRb->Format)) {
2720 /* The Mesa formats are different, so we must check whether the internal
2721 * formats are compatible.
2723 * Under some circumstances, the user may request e.g. two GL_RGBA8
2724 * textures and get two entirely different Mesa formats like RGBA8888 and
2725 * ARGB8888. Drivers behaving like that should be able to cope with
2726 * non-matching formats by themselves, because it's not the user's fault.
2728 * Blits between linear and sRGB formats are also allowed.
2730 readFormat = _mesa_get_nongeneric_internalformat(readRb->InternalFormat);
2731 drawFormat = _mesa_get_nongeneric_internalformat(drawRb->InternalFormat);
2732 readFormat = _mesa_get_linear_internalformat(readFormat);
2733 drawFormat = _mesa_get_linear_internalformat(drawFormat);
2735 if (readFormat == drawFormat) {
2744 * Blit rectangular region, optionally from one framebuffer to another.
2746 * Note, if the src buffer is multisampled and the dest is not, this is
2747 * when the samples must be resolved to a single color.
2750 _mesa_BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
2751 GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
2752 GLbitfield mask, GLenum filter)
2754 const GLbitfield legalMaskBits = (GL_COLOR_BUFFER_BIT |
2755 GL_DEPTH_BUFFER_BIT |
2756 GL_STENCIL_BUFFER_BIT);
2757 const struct gl_framebuffer *readFb, *drawFb;
2758 const struct gl_renderbuffer *colorReadRb, *colorDrawRb;
2759 GET_CURRENT_CONTEXT(ctx);
2761 ASSERT_OUTSIDE_BEGIN_END(ctx);
2762 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
2764 if (MESA_VERBOSE & VERBOSE_API)
2766 "glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d, 0x%x, %s)\n",
2767 srcX0, srcY0, srcX1, srcY1,
2768 dstX0, dstY0, dstX1, dstY1,
2769 mask, _mesa_lookup_enum_by_nr(filter));
2771 if (ctx->NewState) {
2772 _mesa_update_state(ctx);
2775 readFb = ctx->ReadBuffer;
2776 drawFb = ctx->DrawBuffer;
2778 if (!readFb || !drawFb) {
2779 /* This will normally never happen but someday we may want to
2780 * support MakeCurrent() with no drawables.
2785 /* check for complete framebuffers */
2786 if (drawFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT ||
2787 readFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2788 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2789 "glBlitFramebufferEXT(incomplete draw/read buffers)");
2793 if (filter != GL_NEAREST && filter != GL_LINEAR) {
2794 _mesa_error(ctx, GL_INVALID_ENUM, "glBlitFramebufferEXT(filter)");
2798 if (mask & ~legalMaskBits) {
2799 _mesa_error( ctx, GL_INVALID_VALUE, "glBlitFramebufferEXT(mask)");
2803 /* depth/stencil must be blitted with nearest filtering */
2804 if ((mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT))
2805 && filter != GL_NEAREST) {
2806 _mesa_error(ctx, GL_INVALID_OPERATION,
2807 "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter)");
2811 /* get color read/draw renderbuffers */
2812 if (mask & GL_COLOR_BUFFER_BIT) {
2813 colorReadRb = readFb->_ColorReadBuffer;
2814 colorDrawRb = drawFb->_ColorDrawBuffers[0];
2816 /* From the EXT_framebuffer_object spec:
2818 * "If a buffer is specified in <mask> and does not exist in both
2819 * the read and draw framebuffers, the corresponding bit is silently
2822 if ((colorReadRb == NULL) || (colorDrawRb == NULL)) {
2823 colorReadRb = colorDrawRb = NULL;
2824 mask &= ~GL_COLOR_BUFFER_BIT;
2826 else if (!compatible_color_datatypes(colorReadRb->Format,
2827 colorDrawRb->Format)) {
2828 _mesa_error(ctx, GL_INVALID_OPERATION,
2829 "glBlitFramebufferEXT(color buffer datatypes mismatch)");
2834 colorReadRb = colorDrawRb = NULL;
2837 if (mask & GL_STENCIL_BUFFER_BIT) {
2838 struct gl_renderbuffer *readRb =
2839 readFb->Attachment[BUFFER_STENCIL].Renderbuffer;
2840 struct gl_renderbuffer *drawRb =
2841 drawFb->Attachment[BUFFER_STENCIL].Renderbuffer;
2843 /* From the EXT_framebuffer_object spec:
2845 * "If a buffer is specified in <mask> and does not exist in both
2846 * the read and draw framebuffers, the corresponding bit is silently
2849 if ((readRb == NULL) || (drawRb == NULL)) {
2850 mask &= ~GL_STENCIL_BUFFER_BIT;
2852 else if (_mesa_get_format_bits(readRb->Format, GL_STENCIL_BITS) !=
2853 _mesa_get_format_bits(drawRb->Format, GL_STENCIL_BITS)) {
2854 /* There is no need to check the stencil datatype here, because
2855 * there is only one: GL_UNSIGNED_INT.
2857 _mesa_error(ctx, GL_INVALID_OPERATION,
2858 "glBlitFramebufferEXT(stencil buffer size mismatch)");
2863 if (mask & GL_DEPTH_BUFFER_BIT) {
2864 struct gl_renderbuffer *readRb =
2865 readFb->Attachment[BUFFER_DEPTH].Renderbuffer;
2866 struct gl_renderbuffer *drawRb =
2867 drawFb->Attachment[BUFFER_DEPTH].Renderbuffer;
2869 /* From the EXT_framebuffer_object spec:
2871 * "If a buffer is specified in <mask> and does not exist in both
2872 * the read and draw framebuffers, the corresponding bit is silently
2875 if ((readRb == NULL) || (drawRb == NULL)) {
2876 mask &= ~GL_DEPTH_BUFFER_BIT;
2878 else if ((_mesa_get_format_bits(readRb->Format, GL_DEPTH_BITS) !=
2879 _mesa_get_format_bits(drawRb->Format, GL_DEPTH_BITS)) ||
2880 (_mesa_get_format_datatype(readRb->Format) !=
2881 _mesa_get_format_datatype(drawRb->Format))) {
2882 _mesa_error(ctx, GL_INVALID_OPERATION,
2883 "glBlitFramebufferEXT(depth buffer format mismatch)");
2888 if (readFb->Visual.samples > 0 &&
2889 drawFb->Visual.samples > 0 &&
2890 readFb->Visual.samples != drawFb->Visual.samples) {
2891 _mesa_error(ctx, GL_INVALID_OPERATION,
2892 "glBlitFramebufferEXT(mismatched samples)");
2896 /* extra checks for multisample copies... */
2897 if (readFb->Visual.samples > 0 || drawFb->Visual.samples > 0) {
2898 /* src and dest region sizes must be the same */
2899 if (abs(srcX1 - srcX0) != abs(dstX1 - dstX0) ||
2900 abs(srcY1 - srcY0) != abs(dstY1 - dstY0)) {
2901 _mesa_error(ctx, GL_INVALID_OPERATION,
2902 "glBlitFramebufferEXT(bad src/dst multisample region sizes)");
2906 /* color formats must match */
2909 !compatible_resolve_formats(colorReadRb, colorDrawRb)) {
2910 _mesa_error(ctx, GL_INVALID_OPERATION,
2911 "glBlitFramebufferEXT(bad src/dst multisample pixel formats)");
2916 if (filter == GL_LINEAR && (mask & GL_COLOR_BUFFER_BIT)) {
2917 /* 3.1 spec, page 199:
2918 * "Calling BlitFramebuffer will result in an INVALID_OPERATION error
2919 * if filter is LINEAR and read buffer contains integer data."
2921 GLenum type = _mesa_get_format_datatype(colorReadRb->Format);
2922 if (type == GL_INT || type == GL_UNSIGNED_INT) {
2923 _mesa_error(ctx, GL_INVALID_OPERATION,
2924 "glBlitFramebufferEXT(integer color type)");
2929 if (!ctx->Extensions.EXT_framebuffer_blit) {
2930 _mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebufferEXT");
2936 printf("glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d,"
2938 srcX0, srcY0, srcX1, srcY1,
2939 dstX0, dstY0, dstX1, dstY1,
2942 const struct gl_renderbuffer_attachment *att;
2944 att = find_attachment(readFb, colorReadRb);
2945 printf(" Src FBO %u RB %u (%dx%d) ",
2946 readFb->Name, colorReadRb->Name,
2947 colorReadRb->Width, colorReadRb->Height);
2948 if (att && att->Texture) {
2949 printf("Tex %u tgt 0x%x level %u face %u",
2951 att->Texture->Target,
2957 att = find_attachment(drawFb, colorDrawRb);
2958 printf(" Dst FBO %u RB %u (%dx%d) ",
2959 drawFb->Name, colorDrawRb->Name,
2960 colorDrawRb->Width, colorDrawRb->Height);
2961 if (att && att->Texture) {
2962 printf("Tex %u tgt 0x%x level %u face %u",
2964 att->Texture->Target,
2976 ASSERT(ctx->Driver.BlitFramebuffer);
2977 ctx->Driver.BlitFramebuffer(ctx,
2978 srcX0, srcY0, srcX1, srcY1,
2979 dstX0, dstY0, dstX1, dstY1,
2985 invalidate_framebuffer_storage(GLenum target, GLsizei numAttachments,
2986 const GLenum *attachments, GLint x, GLint y,
2987 GLsizei width, GLsizei height, const char *name)
2990 struct gl_framebuffer *fb;
2991 GET_CURRENT_CONTEXT(ctx);
2993 ASSERT_OUTSIDE_BEGIN_END(ctx);
2995 fb = get_framebuffer_target(ctx, target);
2997 _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", name);
3001 if (numAttachments < 0) {
3002 _mesa_error(ctx, GL_INVALID_VALUE,
3003 "%s(numAttachments < 0)", name);
3007 /* The GL_ARB_invalidate_subdata spec says:
3009 * "If an attachment is specified that does not exist in the
3010 * framebuffer bound to <target>, it is ignored."
3014 * "If <attachments> contains COLOR_ATTACHMENTm and m is greater than
3015 * or equal to the value of MAX_COLOR_ATTACHMENTS, then the error
3016 * INVALID_OPERATION is generated."
3018 * No mention is made of GL_AUXi being out of range. Therefore, we allow
3019 * any enum that can be allowed by the API (OpenGL ES 3.0 has a different
3020 * set of retrictions).
3022 for (i = 0; i < numAttachments; i++) {
3023 if (_mesa_is_winsys_fbo(fb)) {
3024 switch (attachments[i]) {
3030 /* Accumulation buffers and auxilary buffers were removed in
3031 * OpenGL 3.1, and they never existed in OpenGL ES.
3033 if (ctx->API != API_OPENGL_COMPAT)
3043 case GL_FRONT_RIGHT:
3044 if (!_mesa_is_desktop_gl(ctx))
3051 switch (attachments[i]) {
3052 case GL_DEPTH_ATTACHMENT:
3053 case GL_STENCIL_ATTACHMENT:
3055 case GL_COLOR_ATTACHMENT0:
3056 case GL_COLOR_ATTACHMENT1:
3057 case GL_COLOR_ATTACHMENT2:
3058 case GL_COLOR_ATTACHMENT3:
3059 case GL_COLOR_ATTACHMENT4:
3060 case GL_COLOR_ATTACHMENT5:
3061 case GL_COLOR_ATTACHMENT6:
3062 case GL_COLOR_ATTACHMENT7:
3063 case GL_COLOR_ATTACHMENT8:
3064 case GL_COLOR_ATTACHMENT9:
3065 case GL_COLOR_ATTACHMENT10:
3066 case GL_COLOR_ATTACHMENT11:
3067 case GL_COLOR_ATTACHMENT12:
3068 case GL_COLOR_ATTACHMENT13:
3069 case GL_COLOR_ATTACHMENT14:
3070 case GL_COLOR_ATTACHMENT15: {
3071 unsigned k = attachments[i] - GL_COLOR_ATTACHMENT0;
3072 if (k >= ctx->Const.MaxColorAttachments) {
3073 _mesa_error(ctx, GL_INVALID_OPERATION,
3074 "%s(attachment >= max. color attachments)", name);
3084 /* We don't actually do anything for this yet. Just return after
3085 * validating the parameters and generating the required errors.
3090 _mesa_error(ctx, GL_INVALID_ENUM, "%s(attachment)", name);
3095 _mesa_InvalidateSubFramebuffer(GLenum target, GLsizei numAttachments,
3096 const GLenum *attachments, GLint x, GLint y,
3097 GLsizei width, GLsizei height)
3099 invalidate_framebuffer_storage(target, numAttachments, attachments,
3100 x, y, width, height,
3101 "glInvalidateSubFramebuffer");
3105 _mesa_InvalidateFramebuffer(GLenum target, GLsizei numAttachments,
3106 const GLenum *attachments)
3108 /* The GL_ARB_invalidate_subdata spec says:
3112 * void InvalidateFramebuffer(enum target,
3113 * sizei numAttachments,
3114 * const enum *attachments);
3116 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
3117 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
3118 * <MAX_VIEWPORT_DIMS[1]> respectively."
3120 invalidate_framebuffer_storage(target, numAttachments, attachments,
3121 0, 0, MAX_VIEWPORT_WIDTH, MAX_VIEWPORT_HEIGHT,
3122 "glInvalidateFramebuffer");