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);
822 if (_mesa_is_desktop_gl(ctx) && !ctx->Extensions.ARB_ES2_compatibility) {
823 /* Check that all DrawBuffers are present */
824 for (j = 0; j < ctx->Const.MaxDrawBuffers; j++) {
825 if (fb->ColorDrawBuffer[j] != GL_NONE) {
826 const struct gl_renderbuffer_attachment *att
827 = _mesa_get_attachment(ctx, fb, fb->ColorDrawBuffer[j]);
829 if (att->Type == GL_NONE) {
830 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT;
831 fbo_incomplete("missing drawbuffer", j);
837 /* Check that the ReadBuffer is present */
838 if (fb->ColorReadBuffer != GL_NONE) {
839 const struct gl_renderbuffer_attachment *att
840 = _mesa_get_attachment(ctx, fb, fb->ColorReadBuffer);
842 if (att->Type == GL_NONE) {
843 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT;
844 fbo_incomplete("missing readbuffer", -1);
850 if (numImages == 0) {
851 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT;
852 fbo_incomplete("no attachments", -1);
856 /* Provisionally set status = COMPLETE ... */
857 fb->_Status = GL_FRAMEBUFFER_COMPLETE_EXT;
859 /* ... but the driver may say the FB is incomplete.
860 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
863 if (ctx->Driver.ValidateFramebuffer) {
864 ctx->Driver.ValidateFramebuffer(ctx, fb);
865 if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
866 fbo_incomplete("driver marked FBO as incomplete", -1);
870 if (fb->_Status == GL_FRAMEBUFFER_COMPLETE_EXT) {
872 * Note that if ARB_framebuffer_object is supported and the attached
873 * renderbuffers/textures are different sizes, the framebuffer
874 * width/height will be set to the smallest width/height.
876 fb->Width = minWidth;
877 fb->Height = minHeight;
879 /* finally, update the visual info for the framebuffer */
880 _mesa_update_framebuffer_visual(ctx, fb);
886 _mesa_IsRenderbufferEXT(GLuint renderbuffer)
888 GET_CURRENT_CONTEXT(ctx);
889 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
891 struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
892 if (rb != NULL && rb != &DummyRenderbuffer)
900 _mesa_BindRenderbufferEXT(GLenum target, GLuint renderbuffer)
902 struct gl_renderbuffer *newRb;
903 GET_CURRENT_CONTEXT(ctx);
905 ASSERT_OUTSIDE_BEGIN_END(ctx);
907 if (target != GL_RENDERBUFFER_EXT) {
908 _mesa_error(ctx, GL_INVALID_ENUM, "glBindRenderbufferEXT(target)");
912 /* No need to flush here since the render buffer binding has no
913 * effect on rendering state.
917 newRb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
918 if (newRb == &DummyRenderbuffer) {
919 /* ID was reserved, but no real renderbuffer object made yet */
922 else if (!newRb && ctx->Extensions.ARB_framebuffer_object) {
923 /* All RB IDs must be Gen'd */
924 _mesa_error(ctx, GL_INVALID_OPERATION, "glBindRenderbuffer(buffer)");
929 /* create new renderbuffer object */
930 newRb = ctx->Driver.NewRenderbuffer(ctx, renderbuffer);
932 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindRenderbufferEXT");
935 ASSERT(newRb->AllocStorage);
936 _mesa_HashInsert(ctx->Shared->RenderBuffers, renderbuffer, newRb);
937 newRb->RefCount = 1; /* referenced by hash table */
944 ASSERT(newRb != &DummyRenderbuffer);
946 _mesa_reference_renderbuffer(&ctx->CurrentRenderbuffer, newRb);
951 * If the given renderbuffer is anywhere attached to the framebuffer, detach
953 * This is used when a renderbuffer object is deleted.
954 * The spec calls for unbinding.
957 detach_renderbuffer(struct gl_context *ctx,
958 struct gl_framebuffer *fb,
959 struct gl_renderbuffer *rb)
962 for (i = 0; i < BUFFER_COUNT; i++) {
963 if (fb->Attachment[i].Renderbuffer == rb) {
964 _mesa_remove_attachment(ctx, &fb->Attachment[i]);
967 invalidate_framebuffer(fb);
972 _mesa_DeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers)
975 GET_CURRENT_CONTEXT(ctx);
977 ASSERT_OUTSIDE_BEGIN_END(ctx);
978 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
980 for (i = 0; i < n; i++) {
981 if (renderbuffers[i] > 0) {
982 struct gl_renderbuffer *rb;
983 rb = _mesa_lookup_renderbuffer(ctx, renderbuffers[i]);
985 /* check if deleting currently bound renderbuffer object */
986 if (rb == ctx->CurrentRenderbuffer) {
988 ASSERT(rb->RefCount >= 2);
989 _mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
992 if (_mesa_is_user_fbo(ctx->DrawBuffer)) {
993 detach_renderbuffer(ctx, ctx->DrawBuffer, rb);
995 if (_mesa_is_user_fbo(ctx->ReadBuffer)
996 && ctx->ReadBuffer != ctx->DrawBuffer) {
997 detach_renderbuffer(ctx, ctx->ReadBuffer, rb);
1000 /* Remove from hash table immediately, to free the ID.
1001 * But the object will not be freed until it's no longer
1002 * referenced anywhere else.
1004 _mesa_HashRemove(ctx->Shared->RenderBuffers, renderbuffers[i]);
1006 if (rb != &DummyRenderbuffer) {
1007 /* no longer referenced by hash table */
1008 _mesa_reference_renderbuffer(&rb, NULL);
1017 _mesa_GenRenderbuffersEXT(GLsizei n, GLuint *renderbuffers)
1019 GET_CURRENT_CONTEXT(ctx);
1023 ASSERT_OUTSIDE_BEGIN_END(ctx);
1026 _mesa_error(ctx, GL_INVALID_VALUE, "glGenRenderbuffersEXT(n)");
1033 first = _mesa_HashFindFreeKeyBlock(ctx->Shared->RenderBuffers, n);
1035 for (i = 0; i < n; i++) {
1036 GLuint name = first + i;
1037 renderbuffers[i] = name;
1038 /* insert dummy placeholder into hash table */
1039 _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
1040 _mesa_HashInsert(ctx->Shared->RenderBuffers, name, &DummyRenderbuffer);
1041 _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
1047 * Given an internal format token for a render buffer, return the
1048 * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
1049 * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,
1050 * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).
1052 * This is similar to _mesa_base_tex_format() but the set of valid
1053 * internal formats is different.
1055 * Note that even if a format is determined to be legal here, validation
1056 * of the FBO may fail if the format is not supported by the driver/GPU.
1058 * \param internalFormat as passed to glRenderbufferStorage()
1059 * \return the base internal format, or 0 if internalFormat is illegal
1062 _mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
1065 * Notes: some formats such as alpha, luminance, etc. were added
1066 * with GL_ARB_framebuffer_object.
1068 switch (internalFormat) {
1074 return ctx->API == API_OPENGL && ctx->Extensions.ARB_framebuffer_object
1079 case GL_LUMINANCE12:
1080 case GL_LUMINANCE16:
1081 return ctx->API == API_OPENGL && ctx->Extensions.ARB_framebuffer_object
1083 case GL_LUMINANCE_ALPHA:
1084 case GL_LUMINANCE4_ALPHA4:
1085 case GL_LUMINANCE6_ALPHA2:
1086 case GL_LUMINANCE8_ALPHA8:
1087 case GL_LUMINANCE12_ALPHA4:
1088 case GL_LUMINANCE12_ALPHA12:
1089 case GL_LUMINANCE16_ALPHA16:
1090 return ctx->API == API_OPENGL && ctx->Extensions.ARB_framebuffer_object
1091 ? GL_LUMINANCE_ALPHA : 0;
1095 case GL_INTENSITY12:
1096 case GL_INTENSITY16:
1097 return ctx->API == API_OPENGL && ctx->Extensions.ARB_framebuffer_object
1108 return _mesa_is_desktop_gl(ctx) ? GL_RGB : 0;
1110 return _mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx) ? GL_RGB : 0;
1119 return _mesa_is_desktop_gl(ctx) ? GL_RGBA : 0;
1121 case GL_SRGB8_ALPHA8_EXT:
1122 return _mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx) ? GL_RGBA : 0;
1123 case GL_STENCIL_INDEX:
1124 case GL_STENCIL_INDEX1_EXT:
1125 case GL_STENCIL_INDEX4_EXT:
1126 case GL_STENCIL_INDEX16_EXT:
1127 /* There are extensions for GL_STENCIL_INDEX1 and GL_STENCIL_INDEX4 in
1128 * OpenGL ES, but Mesa does not currently support them.
1130 return _mesa_is_desktop_gl(ctx) ? GL_STENCIL_INDEX : 0;
1131 case GL_STENCIL_INDEX8_EXT:
1132 return GL_STENCIL_INDEX;
1133 case GL_DEPTH_COMPONENT:
1134 case GL_DEPTH_COMPONENT32:
1135 return _mesa_is_desktop_gl(ctx) ? GL_DEPTH_COMPONENT : 0;
1136 case GL_DEPTH_COMPONENT16:
1137 case GL_DEPTH_COMPONENT24:
1138 return GL_DEPTH_COMPONENT;
1139 case GL_DEPTH_STENCIL_EXT:
1140 return _mesa_is_desktop_gl(ctx)
1141 && ctx->Extensions.EXT_packed_depth_stencil
1142 ? GL_DEPTH_STENCIL_EXT : 0;
1143 case GL_DEPTH24_STENCIL8_EXT:
1144 return ctx->Extensions.EXT_packed_depth_stencil
1145 ? GL_DEPTH_STENCIL_EXT : 0;
1146 case GL_DEPTH_COMPONENT32F:
1147 return ctx->Version >= 30
1148 || (ctx->API == API_OPENGL && ctx->Extensions.ARB_depth_buffer_float)
1149 ? GL_DEPTH_COMPONENT : 0;
1150 case GL_DEPTH32F_STENCIL8:
1151 return ctx->Version >= 30
1152 || (ctx->API == API_OPENGL && ctx->Extensions.ARB_depth_buffer_float)
1153 ? GL_DEPTH_STENCIL : 0;
1156 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_rg
1159 return ctx->API != API_OPENGLES && ctx->Extensions.ARB_texture_rg
1163 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_rg
1166 return ctx->API != API_OPENGLES && ctx->Extensions.ARB_texture_rg
1168 /* signed normalized texture formats */
1170 return ctx->Version >= 30
1171 || (ctx->API == API_OPENGL && ctx->Extensions.EXT_texture_snorm)
1175 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
1178 return ctx->Version >= 30
1179 || (ctx->API == API_OPENGL && ctx->Extensions.EXT_texture_snorm)
1183 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
1186 return ctx->Version >= 30
1187 || (ctx->API == API_OPENGL && ctx->Extensions.EXT_texture_snorm)
1190 case GL_RGB16_SNORM:
1191 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
1193 case GL_RGBA8_SNORM:
1194 return ctx->Version >= 30
1195 || (ctx->API == API_OPENGL && ctx->Extensions.EXT_texture_snorm)
1198 case GL_RGBA16_SNORM:
1199 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_snorm
1201 case GL_ALPHA_SNORM:
1202 case GL_ALPHA8_SNORM:
1203 case GL_ALPHA16_SNORM:
1204 return ctx->API == API_OPENGL &&
1205 ctx->Extensions.EXT_texture_snorm &&
1206 ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0;
1207 case GL_LUMINANCE_SNORM:
1208 case GL_LUMINANCE8_SNORM:
1209 case GL_LUMINANCE16_SNORM:
1210 return ctx->API == API_OPENGL &&
1211 ctx->Extensions.EXT_texture_snorm &&
1212 ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0;
1213 case GL_LUMINANCE_ALPHA_SNORM:
1214 case GL_LUMINANCE8_ALPHA8_SNORM:
1215 case GL_LUMINANCE16_ALPHA16_SNORM:
1216 return ctx->API == API_OPENGL &&
1217 ctx->Extensions.EXT_texture_snorm &&
1218 ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0;
1219 case GL_INTENSITY_SNORM:
1220 case GL_INTENSITY8_SNORM:
1221 case GL_INTENSITY16_SNORM:
1222 return ctx->API == API_OPENGL &&
1223 ctx->Extensions.EXT_texture_snorm &&
1224 ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;
1227 return ctx->Version >= 30
1228 || (ctx->API == API_OPENGL &&
1229 ctx->Extensions.ARB_texture_rg &&
1230 ctx->Extensions.ARB_texture_float) ? GL_RED : 0;
1233 return ctx->Version >= 30
1234 || (ctx->API == API_OPENGL &&
1235 ctx->Extensions.ARB_texture_rg &&
1236 ctx->Extensions.ARB_texture_float) ? GL_RG : 0;
1239 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_float)
1240 || _mesa_is_gles3(ctx)
1244 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_float)
1245 || _mesa_is_gles3(ctx)
1247 case GL_ALPHA16F_ARB:
1248 case GL_ALPHA32F_ARB:
1249 return ctx->API == API_OPENGL &&
1250 ctx->Extensions.ARB_texture_float &&
1251 ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0;
1252 case GL_LUMINANCE16F_ARB:
1253 case GL_LUMINANCE32F_ARB:
1254 return ctx->API == API_OPENGL &&
1255 ctx->Extensions.ARB_texture_float &&
1256 ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0;
1257 case GL_LUMINANCE_ALPHA16F_ARB:
1258 case GL_LUMINANCE_ALPHA32F_ARB:
1259 return ctx->API == API_OPENGL &&
1260 ctx->Extensions.ARB_texture_float &&
1261 ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0;
1262 case GL_INTENSITY16F_ARB:
1263 case GL_INTENSITY32F_ARB:
1264 return ctx->API == API_OPENGL &&
1265 ctx->Extensions.ARB_texture_float &&
1266 ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;
1268 return (_mesa_is_desktop_gl(ctx)
1269 && ctx->Extensions.EXT_texture_shared_exponent)
1270 || _mesa_is_gles3(ctx) ? GL_RGB : 0;
1271 case GL_R11F_G11F_B10F:
1272 return (_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_packed_float)
1273 || _mesa_is_gles3(ctx) ? GL_RGB : 0;
1275 case GL_RGBA8UI_EXT:
1276 case GL_RGBA16UI_EXT:
1277 case GL_RGBA32UI_EXT:
1279 case GL_RGBA16I_EXT:
1280 case GL_RGBA32I_EXT:
1281 return ctx->Version >= 30
1282 || (_mesa_is_desktop_gl(ctx) &&
1283 ctx->Extensions.EXT_texture_integer) ? GL_RGBA : 0;
1286 case GL_RGB16UI_EXT:
1287 case GL_RGB32UI_EXT:
1291 return ctx->Version >= 30
1292 || (_mesa_is_desktop_gl(ctx) &&
1293 ctx->Extensions.EXT_texture_integer) ? GL_RGB : 0;
1301 return ctx->Version >= 30
1302 || (_mesa_is_desktop_gl(ctx) &&
1303 ctx->Extensions.ARB_texture_rg &&
1304 ctx->Extensions.EXT_texture_integer) ? GL_RED : 0;
1312 return ctx->Version >= 30
1313 || (_mesa_is_desktop_gl(ctx) &&
1314 ctx->Extensions.ARB_texture_rg &&
1315 ctx->Extensions.EXT_texture_integer) ? GL_RG : 0;
1317 case GL_INTENSITY8I_EXT:
1318 case GL_INTENSITY8UI_EXT:
1319 case GL_INTENSITY16I_EXT:
1320 case GL_INTENSITY16UI_EXT:
1321 case GL_INTENSITY32I_EXT:
1322 case GL_INTENSITY32UI_EXT:
1323 return ctx->API == API_OPENGL &&
1324 ctx->Extensions.EXT_texture_integer &&
1325 ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;
1327 case GL_LUMINANCE8I_EXT:
1328 case GL_LUMINANCE8UI_EXT:
1329 case GL_LUMINANCE16I_EXT:
1330 case GL_LUMINANCE16UI_EXT:
1331 case GL_LUMINANCE32I_EXT:
1332 case GL_LUMINANCE32UI_EXT:
1333 return ctx->API == API_OPENGL &&
1334 ctx->Extensions.EXT_texture_integer &&
1335 ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0;
1337 case GL_LUMINANCE_ALPHA8I_EXT:
1338 case GL_LUMINANCE_ALPHA8UI_EXT:
1339 case GL_LUMINANCE_ALPHA16I_EXT:
1340 case GL_LUMINANCE_ALPHA16UI_EXT:
1341 case GL_LUMINANCE_ALPHA32I_EXT:
1342 case GL_LUMINANCE_ALPHA32UI_EXT:
1343 return ctx->API == API_OPENGL &&
1344 ctx->Extensions.EXT_texture_integer &&
1345 ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0;
1347 case GL_ALPHA8I_EXT:
1348 case GL_ALPHA8UI_EXT:
1349 case GL_ALPHA16I_EXT:
1350 case GL_ALPHA16UI_EXT:
1351 case GL_ALPHA32I_EXT:
1352 case GL_ALPHA32UI_EXT:
1353 return ctx->API == API_OPENGL &&
1354 ctx->Extensions.EXT_texture_integer &&
1355 ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0;
1358 return (_mesa_is_desktop_gl(ctx) &&
1359 ctx->Extensions.ARB_texture_rgb10_a2ui)
1360 || _mesa_is_gles3(ctx) ? GL_RGBA : 0;
1363 return _mesa_is_gles(ctx) || ctx->Extensions.ARB_ES2_compatibility
1372 * Invalidate a renderbuffer attachment. Called from _mesa_HashWalk().
1375 invalidate_rb(GLuint key, void *data, void *userData)
1377 struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
1378 struct gl_renderbuffer *rb = (struct gl_renderbuffer *) userData;
1380 /* If this is a user-created FBO */
1381 if (_mesa_is_user_fbo(fb)) {
1383 for (i = 0; i < BUFFER_COUNT; i++) {
1384 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
1385 if (att->Type == GL_RENDERBUFFER &&
1386 att->Renderbuffer == rb) {
1387 /* Mark fb status as indeterminate to force re-validation */
1396 /** sentinal value, see below */
1397 #define NO_SAMPLES 1000
1401 * Helper function used by _mesa_RenderbufferStorageEXT() and
1402 * _mesa_RenderbufferStorageMultisample().
1403 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorageEXT().
1406 renderbuffer_storage(GLenum target, GLenum internalFormat,
1407 GLsizei width, GLsizei height, GLsizei samples)
1409 const char *func = samples == NO_SAMPLES ?
1410 "glRenderbufferStorage" : "RenderbufferStorageMultisample";
1411 struct gl_renderbuffer *rb;
1413 GET_CURRENT_CONTEXT(ctx);
1415 ASSERT_OUTSIDE_BEGIN_END(ctx);
1417 if (target != GL_RENDERBUFFER_EXT) {
1418 _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", func);
1422 baseFormat = _mesa_base_fbo_format(ctx, internalFormat);
1423 if (baseFormat == 0) {
1424 _mesa_error(ctx, GL_INVALID_ENUM, "%s(internalFormat)", func);
1428 if (width < 0 || width > (GLsizei) ctx->Const.MaxRenderbufferSize) {
1429 _mesa_error(ctx, GL_INVALID_VALUE, "%s(width)", func);
1433 if (height < 0 || height > (GLsizei) ctx->Const.MaxRenderbufferSize) {
1434 _mesa_error(ctx, GL_INVALID_VALUE, "%s(height)", func);
1438 if (samples == NO_SAMPLES) {
1439 /* NumSamples == 0 indicates non-multisampling */
1442 else if (samples > (GLsizei) ctx->Const.MaxSamples) {
1443 /* note: driver may choose to use more samples than what's requested */
1444 _mesa_error(ctx, GL_INVALID_VALUE, "%s(samples)", func);
1448 rb = ctx->CurrentRenderbuffer;
1450 _mesa_error(ctx, GL_INVALID_OPERATION, "%s", func);
1454 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1456 if (rb->InternalFormat == internalFormat &&
1457 rb->Width == (GLuint) width &&
1458 rb->Height == (GLuint) height &&
1459 rb->NumSamples == samples) {
1460 /* no change in allocation needed */
1464 /* These MUST get set by the AllocStorage func */
1465 rb->Format = MESA_FORMAT_NONE;
1466 rb->NumSamples = samples;
1468 /* Now allocate the storage */
1469 ASSERT(rb->AllocStorage);
1470 if (rb->AllocStorage(ctx, rb, internalFormat, width, height)) {
1471 /* No error - check/set fields now */
1472 /* If rb->Format == MESA_FORMAT_NONE, the format is unsupported. */
1473 assert(rb->Width == (GLuint) width);
1474 assert(rb->Height == (GLuint) height);
1475 rb->InternalFormat = internalFormat;
1476 rb->_BaseFormat = baseFormat;
1477 assert(rb->_BaseFormat != 0);
1480 /* Probably ran out of memory - clear the fields */
1483 rb->Format = MESA_FORMAT_NONE;
1484 rb->InternalFormat = GL_NONE;
1485 rb->_BaseFormat = GL_NONE;
1489 /* Invalidate the framebuffers the renderbuffer is attached in. */
1490 if (rb->AttachedAnytime) {
1491 _mesa_HashWalk(ctx->Shared->FrameBuffers, invalidate_rb, rb);
1497 _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image)
1499 struct gl_renderbuffer *rb;
1500 GET_CURRENT_CONTEXT(ctx);
1501 ASSERT_OUTSIDE_BEGIN_END(ctx);
1503 if (!ctx->Extensions.OES_EGL_image) {
1504 _mesa_error(ctx, GL_INVALID_OPERATION,
1505 "glEGLImageTargetRenderbufferStorageOES(unsupported)");
1509 if (target != GL_RENDERBUFFER) {
1510 _mesa_error(ctx, GL_INVALID_ENUM,
1511 "EGLImageTargetRenderbufferStorageOES");
1515 rb = ctx->CurrentRenderbuffer;
1517 _mesa_error(ctx, GL_INVALID_OPERATION,
1518 "EGLImageTargetRenderbufferStorageOES");
1522 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1524 ctx->Driver.EGLImageTargetRenderbufferStorage(ctx, rb, image);
1529 * Helper function for _mesa_GetRenderbufferParameterivEXT() and
1530 * _mesa_GetFramebufferAttachmentParameterivEXT()
1531 * We have to be careful to respect the base format. For example, if a
1532 * renderbuffer/texture was created with internalFormat=GL_RGB but the
1533 * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
1534 * we need to return zero.
1537 get_component_bits(GLenum pname, GLenum baseFormat, gl_format format)
1539 if (_mesa_base_format_has_channel(baseFormat, pname))
1540 return _mesa_get_format_bits(format, pname);
1548 _mesa_RenderbufferStorageEXT(GLenum target, GLenum internalFormat,
1549 GLsizei width, GLsizei height)
1551 /* GL_ARB_fbo says calling this function is equivalent to calling
1552 * glRenderbufferStorageMultisample() with samples=0. We pass in
1553 * a token value here just for error reporting purposes.
1555 renderbuffer_storage(target, internalFormat, width, height, NO_SAMPLES);
1560 _mesa_RenderbufferStorageMultisample(GLenum target, GLsizei samples,
1561 GLenum internalFormat,
1562 GLsizei width, GLsizei height)
1564 renderbuffer_storage(target, internalFormat, width, height, samples);
1569 * OpenGL ES version of glRenderBufferStorage.
1572 _es_RenderbufferStorageEXT(GLenum target, GLenum internalFormat,
1573 GLsizei width, GLsizei height)
1575 switch (internalFormat) {
1577 /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
1578 /* choose a closest format */
1579 internalFormat = GL_RGB5;
1585 renderbuffer_storage(target, internalFormat, width, height, 0);
1590 _mesa_GetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint *params)
1592 struct gl_renderbuffer *rb;
1593 GET_CURRENT_CONTEXT(ctx);
1595 ASSERT_OUTSIDE_BEGIN_END(ctx);
1597 if (target != GL_RENDERBUFFER_EXT) {
1598 _mesa_error(ctx, GL_INVALID_ENUM,
1599 "glGetRenderbufferParameterivEXT(target)");
1603 rb = ctx->CurrentRenderbuffer;
1605 _mesa_error(ctx, GL_INVALID_OPERATION,
1606 "glGetRenderbufferParameterivEXT");
1610 /* No need to flush here since we're just quering state which is
1611 * not effected by rendering.
1615 case GL_RENDERBUFFER_WIDTH_EXT:
1616 *params = rb->Width;
1618 case GL_RENDERBUFFER_HEIGHT_EXT:
1619 *params = rb->Height;
1621 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT:
1622 *params = rb->InternalFormat;
1624 case GL_RENDERBUFFER_RED_SIZE_EXT:
1625 case GL_RENDERBUFFER_GREEN_SIZE_EXT:
1626 case GL_RENDERBUFFER_BLUE_SIZE_EXT:
1627 case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
1628 case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
1629 case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
1630 *params = get_component_bits(pname, rb->_BaseFormat, rb->Format);
1632 case GL_RENDERBUFFER_SAMPLES:
1633 if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_framebuffer_object)
1634 || _mesa_is_gles3(ctx)) {
1635 *params = rb->NumSamples;
1640 _mesa_error(ctx, GL_INVALID_ENUM,
1641 "glGetRenderbufferParameterivEXT(target)");
1647 GLboolean GLAPIENTRY
1648 _mesa_IsFramebufferEXT(GLuint framebuffer)
1650 GET_CURRENT_CONTEXT(ctx);
1651 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
1653 struct gl_framebuffer *rb = _mesa_lookup_framebuffer(ctx, framebuffer);
1654 if (rb != NULL && rb != &DummyFramebuffer)
1662 * Check if any of the attachments of the given framebuffer are textures
1663 * (render to texture). Call ctx->Driver.RenderTexture() for such
1667 check_begin_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
1670 ASSERT(ctx->Driver.RenderTexture);
1672 if (_mesa_is_winsys_fbo(fb))
1673 return; /* can't render to texture with winsys framebuffers */
1675 for (i = 0; i < BUFFER_COUNT; i++) {
1676 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
1677 if (att->Texture && _mesa_get_attachment_teximage(att)) {
1678 ctx->Driver.RenderTexture(ctx, fb, att);
1685 * Examine all the framebuffer's attachments to see if any are textures.
1686 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
1687 * notify the device driver that the texture image may have changed.
1690 check_end_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
1692 if (_mesa_is_winsys_fbo(fb))
1693 return; /* can't render to texture with winsys framebuffers */
1695 if (ctx->Driver.FinishRenderTexture) {
1697 for (i = 0; i < BUFFER_COUNT; i++) {
1698 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
1699 if (att->Texture && att->Renderbuffer) {
1700 ctx->Driver.FinishRenderTexture(ctx, att);
1708 _mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
1710 struct gl_framebuffer *newDrawFb, *newReadFb;
1711 struct gl_framebuffer *oldDrawFb, *oldReadFb;
1712 GLboolean bindReadBuf, bindDrawBuf;
1713 GET_CURRENT_CONTEXT(ctx);
1716 if (ctx->Extensions.ARB_framebuffer_object) {
1717 ASSERT(ctx->Extensions.EXT_framebuffer_object);
1718 ASSERT(ctx->Extensions.EXT_framebuffer_blit);
1722 ASSERT_OUTSIDE_BEGIN_END(ctx);
1724 if (!ctx->Extensions.EXT_framebuffer_object) {
1725 _mesa_error(ctx, GL_INVALID_OPERATION,
1726 "glBindFramebufferEXT(unsupported)");
1731 case GL_DRAW_FRAMEBUFFER_EXT:
1732 if (!ctx->Extensions.EXT_framebuffer_blit) {
1733 _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
1736 bindDrawBuf = GL_TRUE;
1737 bindReadBuf = GL_FALSE;
1739 case GL_READ_FRAMEBUFFER_EXT:
1740 if (!ctx->Extensions.EXT_framebuffer_blit) {
1741 _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
1744 bindDrawBuf = GL_FALSE;
1745 bindReadBuf = GL_TRUE;
1747 case GL_FRAMEBUFFER_EXT:
1748 bindDrawBuf = GL_TRUE;
1749 bindReadBuf = GL_TRUE;
1752 _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
1757 /* Binding a user-created framebuffer object */
1758 newDrawFb = _mesa_lookup_framebuffer(ctx, framebuffer);
1759 if (newDrawFb == &DummyFramebuffer) {
1760 /* ID was reserved, but no real framebuffer object made yet */
1763 else if (!newDrawFb && ctx->Extensions.ARB_framebuffer_object) {
1764 /* All FBO IDs must be Gen'd */
1765 _mesa_error(ctx, GL_INVALID_OPERATION, "glBindFramebuffer(buffer)");
1770 /* create new framebuffer object */
1771 newDrawFb = ctx->Driver.NewFramebuffer(ctx, framebuffer);
1773 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindFramebufferEXT");
1776 _mesa_HashInsert(ctx->Shared->FrameBuffers, framebuffer, newDrawFb);
1778 newReadFb = newDrawFb;
1781 /* Binding the window system framebuffer (which was originally set
1782 * with MakeCurrent).
1784 newDrawFb = ctx->WinSysDrawBuffer;
1785 newReadFb = ctx->WinSysReadBuffer;
1789 ASSERT(newDrawFb != &DummyFramebuffer);
1791 /* save pointers to current/old framebuffers */
1792 oldDrawFb = ctx->DrawBuffer;
1793 oldReadFb = ctx->ReadBuffer;
1795 /* check if really changing bindings */
1796 if (oldDrawFb == newDrawFb)
1797 bindDrawBuf = GL_FALSE;
1798 if (oldReadFb == newReadFb)
1799 bindReadBuf = GL_FALSE;
1802 * OK, now bind the new Draw/Read framebuffers, if they're changing.
1804 * We also check if we're beginning and/or ending render-to-texture.
1805 * When a framebuffer with texture attachments is unbound, call
1806 * ctx->Driver.FinishRenderTexture().
1807 * When a framebuffer with texture attachments is bound, call
1808 * ctx->Driver.RenderTexture().
1810 * Note that if the ReadBuffer has texture attachments we don't consider
1811 * that a render-to-texture case.
1814 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1816 /* check if old readbuffer was render-to-texture */
1817 check_end_texture_render(ctx, oldReadFb);
1819 _mesa_reference_framebuffer(&ctx->ReadBuffer, newReadFb);
1823 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1825 /* check if old framebuffer had any texture attachments */
1827 check_end_texture_render(ctx, oldDrawFb);
1829 /* check if newly bound framebuffer has any texture attachments */
1830 check_begin_texture_render(ctx, newDrawFb);
1832 _mesa_reference_framebuffer(&ctx->DrawBuffer, newDrawFb);
1835 if ((bindDrawBuf || bindReadBuf) && ctx->Driver.BindFramebuffer) {
1836 ctx->Driver.BindFramebuffer(ctx, target, newDrawFb, newReadFb);
1842 _mesa_DeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers)
1845 GET_CURRENT_CONTEXT(ctx);
1847 ASSERT_OUTSIDE_BEGIN_END(ctx);
1848 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1850 for (i = 0; i < n; i++) {
1851 if (framebuffers[i] > 0) {
1852 struct gl_framebuffer *fb;
1853 fb = _mesa_lookup_framebuffer(ctx, framebuffers[i]);
1855 ASSERT(fb == &DummyFramebuffer || fb->Name == framebuffers[i]);
1857 /* check if deleting currently bound framebuffer object */
1858 if (ctx->Extensions.EXT_framebuffer_blit) {
1859 /* separate draw/read binding points */
1860 if (fb == ctx->DrawBuffer) {
1862 ASSERT(fb->RefCount >= 2);
1863 _mesa_BindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
1865 if (fb == ctx->ReadBuffer) {
1867 ASSERT(fb->RefCount >= 2);
1868 _mesa_BindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, 0);
1872 /* only one binding point for read/draw buffers */
1873 if (fb == ctx->DrawBuffer || fb == ctx->ReadBuffer) {
1875 ASSERT(fb->RefCount >= 2);
1876 _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
1880 /* remove from hash table immediately, to free the ID */
1881 _mesa_HashRemove(ctx->Shared->FrameBuffers, framebuffers[i]);
1883 if (fb != &DummyFramebuffer) {
1884 /* But the object will not be freed until it's no longer
1885 * bound in any context.
1887 _mesa_reference_framebuffer(&fb, NULL);
1896 _mesa_GenFramebuffersEXT(GLsizei n, GLuint *framebuffers)
1898 GET_CURRENT_CONTEXT(ctx);
1902 ASSERT_OUTSIDE_BEGIN_END(ctx);
1905 _mesa_error(ctx, GL_INVALID_VALUE, "glGenFramebuffersEXT(n)");
1912 first = _mesa_HashFindFreeKeyBlock(ctx->Shared->FrameBuffers, n);
1914 for (i = 0; i < n; i++) {
1915 GLuint name = first + i;
1916 framebuffers[i] = name;
1917 /* insert dummy placeholder into hash table */
1918 _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
1919 _mesa_HashInsert(ctx->Shared->FrameBuffers, name, &DummyFramebuffer);
1920 _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
1927 _mesa_CheckFramebufferStatusEXT(GLenum target)
1929 struct gl_framebuffer *buffer;
1930 GET_CURRENT_CONTEXT(ctx);
1932 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
1934 buffer = get_framebuffer_target(ctx, target);
1936 _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");
1940 if (_mesa_is_winsys_fbo(buffer)) {
1941 /* The window system / default framebuffer is always complete */
1942 return GL_FRAMEBUFFER_COMPLETE_EXT;
1945 /* No need to flush here */
1947 if (buffer->_Status != GL_FRAMEBUFFER_COMPLETE) {
1948 _mesa_test_framebuffer_completeness(ctx, buffer);
1951 return buffer->_Status;
1956 * Replicate the src attachment point. Used by framebuffer_texture() when
1957 * the same texture is attached at GL_DEPTH_ATTACHMENT and
1958 * GL_STENCIL_ATTACHMENT.
1961 reuse_framebuffer_texture_attachment(struct gl_framebuffer *fb,
1962 gl_buffer_index dst,
1963 gl_buffer_index src)
1965 struct gl_renderbuffer_attachment *dst_att = &fb->Attachment[dst];
1966 struct gl_renderbuffer_attachment *src_att = &fb->Attachment[src];
1968 assert(src_att->Texture != NULL);
1969 assert(src_att->Renderbuffer != NULL);
1971 _mesa_reference_texobj(&dst_att->Texture, src_att->Texture);
1972 _mesa_reference_renderbuffer(&dst_att->Renderbuffer, src_att->Renderbuffer);
1973 dst_att->Type = src_att->Type;
1974 dst_att->Complete = src_att->Complete;
1975 dst_att->TextureLevel = src_att->TextureLevel;
1976 dst_att->Zoffset = src_att->Zoffset;
1981 * Common code called by glFramebufferTexture1D/2D/3DEXT() and
1982 * glFramebufferTextureLayerEXT().
1983 * Note: glFramebufferTextureLayerEXT() has no textarget parameter so we'll
1984 * get textarget=0 in that case.
1987 framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target,
1988 GLenum attachment, GLenum textarget, GLuint texture,
1989 GLint level, GLint zoffset)
1991 struct gl_renderbuffer_attachment *att;
1992 struct gl_texture_object *texObj = NULL;
1993 struct gl_framebuffer *fb;
1994 GLenum maxLevelsTarget;
1996 ASSERT_OUTSIDE_BEGIN_END(ctx);
1998 fb = get_framebuffer_target(ctx, target);
2000 _mesa_error(ctx, GL_INVALID_ENUM,
2001 "glFramebufferTexture%sEXT(target=0x%x)", caller, target);
2005 /* check framebuffer binding */
2006 if (_mesa_is_winsys_fbo(fb)) {
2007 _mesa_error(ctx, GL_INVALID_OPERATION,
2008 "glFramebufferTexture%sEXT", caller);
2012 /* The textarget, level, and zoffset parameters are only validated if
2013 * texture is non-zero.
2016 GLboolean err = GL_TRUE;
2018 texObj = _mesa_lookup_texture(ctx, texture);
2019 if (texObj != NULL) {
2020 if (textarget == 0) {
2021 /* If textarget == 0 it means we're being called by
2022 * glFramebufferTextureLayer() and textarget is not used.
2023 * The only legal texture types for that function are 3D and
2024 * 1D/2D arrays textures.
2026 err = (texObj->Target != GL_TEXTURE_3D) &&
2027 (texObj->Target != GL_TEXTURE_1D_ARRAY_EXT) &&
2028 (texObj->Target != GL_TEXTURE_2D_ARRAY_EXT);
2031 /* Make sure textarget is consistent with the texture's type */
2032 err = (texObj->Target == GL_TEXTURE_CUBE_MAP)
2033 ? !_mesa_is_cube_face(textarget)
2034 : (texObj->Target != textarget);
2038 /* can't render to a non-existant texture */
2039 _mesa_error(ctx, GL_INVALID_OPERATION,
2040 "glFramebufferTexture%sEXT(non existant texture)",
2046 _mesa_error(ctx, GL_INVALID_OPERATION,
2047 "glFramebufferTexture%sEXT(texture target mismatch)",
2052 if (texObj->Target == GL_TEXTURE_3D) {
2053 const GLint maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
2054 if (zoffset < 0 || zoffset >= maxSize) {
2055 _mesa_error(ctx, GL_INVALID_VALUE,
2056 "glFramebufferTexture%sEXT(zoffset)", caller);
2060 else if ((texObj->Target == GL_TEXTURE_1D_ARRAY_EXT) ||
2061 (texObj->Target == GL_TEXTURE_2D_ARRAY_EXT)) {
2062 if (zoffset < 0 || zoffset >= ctx->Const.MaxArrayTextureLayers) {
2063 _mesa_error(ctx, GL_INVALID_VALUE,
2064 "glFramebufferTexture%sEXT(layer)", caller);
2069 maxLevelsTarget = textarget ? textarget : texObj->Target;
2071 (level >= _mesa_max_texture_levels(ctx, maxLevelsTarget))) {
2072 _mesa_error(ctx, GL_INVALID_VALUE,
2073 "glFramebufferTexture%sEXT(level)", caller);
2078 att = _mesa_get_attachment(ctx, fb, attachment);
2080 _mesa_error(ctx, GL_INVALID_ENUM,
2081 "glFramebufferTexture%sEXT(attachment)", caller);
2085 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
2087 _glthread_LOCK_MUTEX(fb->Mutex);
2089 if (attachment == GL_DEPTH_ATTACHMENT &&
2090 texObj == fb->Attachment[BUFFER_STENCIL].Texture &&
2091 level == fb->Attachment[BUFFER_STENCIL].TextureLevel &&
2092 _mesa_tex_target_to_face(textarget) ==
2093 fb->Attachment[BUFFER_STENCIL].CubeMapFace &&
2094 zoffset == fb->Attachment[BUFFER_STENCIL].Zoffset) {
2095 /* The texture object is already attached to the stencil attachment
2096 * point. Don't create a new renderbuffer; just reuse the stencil
2097 * attachment's. This is required to prevent a GL error in
2098 * glGetFramebufferAttachmentParameteriv(GL_DEPTH_STENCIL).
2100 reuse_framebuffer_texture_attachment(fb, BUFFER_DEPTH,
2102 } else if (attachment == GL_STENCIL_ATTACHMENT &&
2103 texObj == fb->Attachment[BUFFER_DEPTH].Texture &&
2104 level == fb->Attachment[BUFFER_DEPTH].TextureLevel &&
2105 _mesa_tex_target_to_face(textarget) ==
2106 fb->Attachment[BUFFER_DEPTH].CubeMapFace &&
2107 zoffset == fb->Attachment[BUFFER_DEPTH].Zoffset) {
2108 /* As above, but with depth and stencil transposed. */
2109 reuse_framebuffer_texture_attachment(fb, BUFFER_STENCIL,
2112 _mesa_set_texture_attachment(ctx, fb, att, texObj, textarget,
2114 if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
2115 /* Above we created a new renderbuffer and attached it to the
2116 * depth attachment point. Now attach it to the stencil attachment
2119 assert(att == &fb->Attachment[BUFFER_DEPTH]);
2120 reuse_framebuffer_texture_attachment(fb,BUFFER_STENCIL,
2125 /* Set the render-to-texture flag. We'll check this flag in
2126 * glTexImage() and friends to determine if we need to revalidate
2127 * any FBOs that might be rendering into this texture.
2128 * This flag never gets cleared since it's non-trivial to determine
2129 * when all FBOs might be done rendering to this texture. That's OK
2130 * though since it's uncommon to render to a texture then repeatedly
2131 * call glTexImage() to change images in the texture.
2133 texObj->_RenderToTexture = GL_TRUE;
2136 _mesa_remove_attachment(ctx, att);
2137 if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
2138 assert(att == &fb->Attachment[BUFFER_DEPTH]);
2139 _mesa_remove_attachment(ctx, &fb->Attachment[BUFFER_STENCIL]);
2143 invalidate_framebuffer(fb);
2145 _glthread_UNLOCK_MUTEX(fb->Mutex);
2151 _mesa_FramebufferTexture1DEXT(GLenum target, GLenum attachment,
2152 GLenum textarget, GLuint texture, GLint level)
2154 GET_CURRENT_CONTEXT(ctx);
2159 switch (textarget) {
2163 case GL_TEXTURE_1D_ARRAY:
2164 error = !ctx->Extensions.EXT_texture_array;
2171 _mesa_error(ctx, GL_INVALID_OPERATION,
2172 "glFramebufferTexture1DEXT(textarget=%s)",
2173 _mesa_lookup_enum_by_nr(textarget));
2178 framebuffer_texture(ctx, "1D", target, attachment, textarget, texture,
2184 _mesa_FramebufferTexture2DEXT(GLenum target, GLenum attachment,
2185 GLenum textarget, GLuint texture, GLint level)
2187 GET_CURRENT_CONTEXT(ctx);
2192 switch (textarget) {
2196 case GL_TEXTURE_RECTANGLE:
2197 error = _mesa_is_gles(ctx)
2198 || !ctx->Extensions.NV_texture_rectangle;
2200 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
2201 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
2202 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
2203 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
2204 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
2205 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
2206 error = !ctx->Extensions.ARB_texture_cube_map;
2208 case GL_TEXTURE_2D_ARRAY:
2209 error = (_mesa_is_gles(ctx) && ctx->Version < 30)
2210 || !ctx->Extensions.EXT_texture_array;
2217 _mesa_error(ctx, GL_INVALID_OPERATION,
2218 "glFramebufferTexture2DEXT(textarget=%s)",
2219 _mesa_lookup_enum_by_nr(textarget));
2224 framebuffer_texture(ctx, "2D", target, attachment, textarget, texture,
2230 _mesa_FramebufferTexture3DEXT(GLenum target, GLenum attachment,
2231 GLenum textarget, GLuint texture,
2232 GLint level, GLint zoffset)
2234 GET_CURRENT_CONTEXT(ctx);
2236 if ((texture != 0) && (textarget != GL_TEXTURE_3D)) {
2237 _mesa_error(ctx, GL_INVALID_OPERATION,
2238 "glFramebufferTexture3DEXT(textarget)");
2242 framebuffer_texture(ctx, "3D", target, attachment, textarget, texture,
2248 _mesa_FramebufferTextureLayerEXT(GLenum target, GLenum attachment,
2249 GLuint texture, GLint level, GLint layer)
2251 GET_CURRENT_CONTEXT(ctx);
2253 framebuffer_texture(ctx, "Layer", target, attachment, 0, texture,
2259 _mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment,
2260 GLenum renderbufferTarget,
2261 GLuint renderbuffer)
2263 struct gl_renderbuffer_attachment *att;
2264 struct gl_framebuffer *fb;
2265 struct gl_renderbuffer *rb;
2266 GET_CURRENT_CONTEXT(ctx);
2268 ASSERT_OUTSIDE_BEGIN_END(ctx);
2270 fb = get_framebuffer_target(ctx, target);
2272 _mesa_error(ctx, GL_INVALID_ENUM, "glFramebufferRenderbufferEXT(target)");
2276 if (renderbufferTarget != GL_RENDERBUFFER_EXT) {
2277 _mesa_error(ctx, GL_INVALID_ENUM,
2278 "glFramebufferRenderbufferEXT(renderbufferTarget)");
2282 if (_mesa_is_winsys_fbo(fb)) {
2283 /* Can't attach new renderbuffers to a window system framebuffer */
2284 _mesa_error(ctx, GL_INVALID_OPERATION, "glFramebufferRenderbufferEXT");
2288 att = _mesa_get_attachment(ctx, fb, attachment);
2290 _mesa_error(ctx, GL_INVALID_ENUM,
2291 "glFramebufferRenderbufferEXT(invalid attachment %s)",
2292 _mesa_lookup_enum_by_nr(attachment));
2297 rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
2299 _mesa_error(ctx, GL_INVALID_OPERATION,
2300 "glFramebufferRenderbufferEXT(non-existant"
2301 " renderbuffer %u)", renderbuffer);
2304 else if (rb == &DummyRenderbuffer) {
2305 /* This is what NVIDIA does */
2306 _mesa_error(ctx, GL_INVALID_VALUE,
2307 "glFramebufferRenderbufferEXT(renderbuffer %u)",
2313 /* remove renderbuffer attachment */
2317 if (attachment == GL_DEPTH_STENCIL_ATTACHMENT &&
2318 rb && rb->Format != MESA_FORMAT_NONE) {
2319 /* make sure the renderbuffer is a depth/stencil format */
2320 const GLenum baseFormat = _mesa_get_format_base_format(rb->Format);
2321 if (baseFormat != GL_DEPTH_STENCIL) {
2322 _mesa_error(ctx, GL_INVALID_OPERATION,
2323 "glFramebufferRenderbufferEXT(renderbuffer"
2324 " is not DEPTH_STENCIL format)");
2330 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
2332 assert(ctx->Driver.FramebufferRenderbuffer);
2333 ctx->Driver.FramebufferRenderbuffer(ctx, fb, attachment, rb);
2335 /* Some subsequent GL commands may depend on the framebuffer's visual
2336 * after the binding is updated. Update visual info now.
2338 _mesa_update_framebuffer_visual(ctx, fb);
2343 _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
2344 GLenum pname, GLint *params)
2346 const struct gl_renderbuffer_attachment *att;
2347 struct gl_framebuffer *buffer;
2349 GET_CURRENT_CONTEXT(ctx);
2351 ASSERT_OUTSIDE_BEGIN_END(ctx);
2353 /* The error differs in GL and GLES. */
2354 err = _mesa_is_desktop_gl(ctx) ? GL_INVALID_OPERATION : GL_INVALID_ENUM;
2356 buffer = get_framebuffer_target(ctx, target);
2358 _mesa_error(ctx, GL_INVALID_ENUM,
2359 "glGetFramebufferAttachmentParameterivEXT(target)");
2363 if (_mesa_is_winsys_fbo(buffer)) {
2364 /* Page 126 (page 136 of the PDF) of the OpenGL ES 2.0.25 spec
2367 * "If the framebuffer currently bound to target is zero, then
2368 * INVALID_OPERATION is generated."
2370 * The EXT_framebuffer_object spec has the same wording, and the
2371 * OES_framebuffer_object spec refers to the EXT_framebuffer_object
2374 if (!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_framebuffer_object) {
2375 _mesa_error(ctx, GL_INVALID_OPERATION,
2376 "glGetFramebufferAttachmentParameteriv(bound FBO = 0)");
2379 /* the default / window-system FBO */
2380 att = _mesa_get_fb0_attachment(ctx, buffer, attachment);
2383 /* user-created framebuffer FBO */
2384 att = _mesa_get_attachment(ctx, buffer, attachment);
2388 _mesa_error(ctx, GL_INVALID_ENUM,
2389 "glGetFramebufferAttachmentParameterivEXT(attachment)");
2393 if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
2394 /* the depth and stencil attachments must point to the same buffer */
2395 const struct gl_renderbuffer_attachment *depthAtt, *stencilAtt;
2396 depthAtt = _mesa_get_attachment(ctx, buffer, GL_DEPTH_ATTACHMENT);
2397 stencilAtt = _mesa_get_attachment(ctx, buffer, GL_STENCIL_ATTACHMENT);
2398 if (depthAtt->Renderbuffer != stencilAtt->Renderbuffer) {
2399 _mesa_error(ctx, GL_INVALID_OPERATION,
2400 "glGetFramebufferAttachmentParameterivEXT(DEPTH/STENCIL"
2401 " attachments differ)");
2406 /* No need to flush here */
2409 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT:
2410 *params = _mesa_is_winsys_fbo(buffer)
2411 ? GL_FRAMEBUFFER_DEFAULT : att->Type;
2413 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT:
2414 if (att->Type == GL_RENDERBUFFER_EXT) {
2415 *params = att->Renderbuffer->Name;
2417 else if (att->Type == GL_TEXTURE) {
2418 *params = att->Texture->Name;
2421 assert(att->Type == GL_NONE);
2422 if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) {
2425 goto invalid_pname_enum;
2429 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT:
2430 if (att->Type == GL_TEXTURE) {
2431 *params = att->TextureLevel;
2433 else if (att->Type == GL_NONE) {
2434 _mesa_error(ctx, err,
2435 "glGetFramebufferAttachmentParameterivEXT(pname)");
2438 goto invalid_pname_enum;
2441 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT:
2442 if (att->Type == GL_TEXTURE) {
2443 if (att->Texture && att->Texture->Target == GL_TEXTURE_CUBE_MAP) {
2444 *params = GL_TEXTURE_CUBE_MAP_POSITIVE_X + att->CubeMapFace;
2450 else if (att->Type == GL_NONE) {
2451 _mesa_error(ctx, err,
2452 "glGetFramebufferAttachmentParameterivEXT(pname)");
2455 goto invalid_pname_enum;
2458 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT:
2459 if (ctx->API == API_OPENGLES) {
2460 goto invalid_pname_enum;
2461 } else if (att->Type == GL_NONE) {
2462 _mesa_error(ctx, err,
2463 "glGetFramebufferAttachmentParameterivEXT(pname)");
2464 } else if (att->Type == GL_TEXTURE) {
2465 if (att->Texture && att->Texture->Target == GL_TEXTURE_3D) {
2466 *params = att->Zoffset;
2473 goto invalid_pname_enum;
2476 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING:
2477 if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_framebuffer_object)
2478 && !_mesa_is_gles3(ctx)) {
2479 goto invalid_pname_enum;
2481 else if (att->Type == GL_NONE) {
2482 _mesa_error(ctx, err,
2483 "glGetFramebufferAttachmentParameterivEXT(pname)");
2486 if (ctx->Extensions.EXT_framebuffer_sRGB) {
2487 *params = _mesa_get_format_color_encoding(att->Renderbuffer->Format);
2490 /* According to ARB_framebuffer_sRGB, we should return LINEAR
2491 * if the sRGB conversion is unsupported. */
2492 *params = GL_LINEAR;
2496 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE:
2497 if ((ctx->API != API_OPENGL || !ctx->Extensions.ARB_framebuffer_object)
2498 && ctx->API != API_OPENGL_CORE
2499 && !_mesa_is_gles3(ctx)) {
2500 goto invalid_pname_enum;
2502 else if (att->Type == GL_NONE) {
2503 _mesa_error(ctx, err,
2504 "glGetFramebufferAttachmentParameterivEXT(pname)");
2507 gl_format format = att->Renderbuffer->Format;
2508 if (format == MESA_FORMAT_S8) {
2512 else if (format == MESA_FORMAT_Z32_FLOAT_X24S8) {
2513 /* depends on the attachment parameter */
2514 if (attachment == GL_STENCIL_ATTACHMENT) {
2522 *params = _mesa_get_format_datatype(format);
2526 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
2527 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
2528 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
2529 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
2530 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
2531 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
2532 if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_framebuffer_object)
2533 && !_mesa_is_gles3(ctx)) {
2534 goto invalid_pname_enum;
2536 else if (att->Type == GL_NONE) {
2537 _mesa_error(ctx, err,
2538 "glGetFramebufferAttachmentParameterivEXT(pname)");
2540 else if (att->Texture) {
2541 const struct gl_texture_image *texImage =
2542 _mesa_select_tex_image(ctx, att->Texture, att->Texture->Target,
2545 *params = get_component_bits(pname, texImage->_BaseFormat,
2546 texImage->TexFormat);
2552 else if (att->Renderbuffer) {
2553 *params = get_component_bits(pname, att->Renderbuffer->_BaseFormat,
2554 att->Renderbuffer->Format);
2557 _mesa_problem(ctx, "glGetFramebufferAttachmentParameterivEXT:"
2558 " invalid FBO attachment structure");
2562 goto invalid_pname_enum;
2568 _mesa_error(ctx, GL_INVALID_ENUM,
2569 "glGetFramebufferAttachmentParameteriv(pname)");
2575 _mesa_GenerateMipmapEXT(GLenum target)
2577 struct gl_texture_image *srcImage;
2578 struct gl_texture_object *texObj;
2581 GET_CURRENT_CONTEXT(ctx);
2583 ASSERT_OUTSIDE_BEGIN_END(ctx);
2584 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
2588 error = _mesa_is_gles(ctx);
2594 error = ctx->API == API_OPENGLES;
2596 case GL_TEXTURE_CUBE_MAP:
2597 error = !ctx->Extensions.ARB_texture_cube_map;
2599 case GL_TEXTURE_1D_ARRAY:
2600 error = _mesa_is_gles(ctx) || !ctx->Extensions.EXT_texture_array;
2602 case GL_TEXTURE_2D_ARRAY:
2603 error = (_mesa_is_gles(ctx) && ctx->Version < 30)
2604 || !ctx->Extensions.EXT_texture_array;
2611 _mesa_error(ctx, GL_INVALID_ENUM, "glGenerateMipmapEXT(target=%s)",
2612 _mesa_lookup_enum_by_nr(target));
2616 texObj = _mesa_get_current_tex_object(ctx, target);
2618 if (texObj->BaseLevel >= texObj->MaxLevel) {
2623 if (texObj->Target == GL_TEXTURE_CUBE_MAP &&
2624 !_mesa_cube_complete(texObj)) {
2625 _mesa_error(ctx, GL_INVALID_OPERATION,
2626 "glGenerateMipmap(incomplete cube map)");
2630 _mesa_lock_texture(ctx, texObj);
2632 srcImage = _mesa_select_tex_image(ctx, texObj, target, texObj->BaseLevel);
2634 _mesa_unlock_texture(ctx, texObj);
2635 _mesa_error(ctx, GL_INVALID_OPERATION,
2636 "glGenerateMipmap(zero size base image)");
2640 if (_mesa_is_enum_format_integer(srcImage->InternalFormat) ||
2641 _mesa_is_depthstencil_format(srcImage->InternalFormat) ||
2642 _mesa_is_stencil_format(srcImage->InternalFormat)) {
2643 _mesa_unlock_texture(ctx, texObj);
2644 _mesa_error(ctx, GL_INVALID_OPERATION,
2645 "glGenerateMipmap(invalid internal format)");
2649 if (target == GL_TEXTURE_CUBE_MAP) {
2651 for (face = 0; face < 6; face++)
2652 ctx->Driver.GenerateMipmap(ctx,
2653 GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + face,
2657 ctx->Driver.GenerateMipmap(ctx, target, texObj);
2659 _mesa_unlock_texture(ctx, texObj);
2663 static const struct gl_renderbuffer_attachment *
2664 find_attachment(const struct gl_framebuffer *fb,
2665 const struct gl_renderbuffer *rb)
2668 for (i = 0; i < Elements(fb->Attachment); i++) {
2669 if (fb->Attachment[i].Renderbuffer == rb)
2670 return &fb->Attachment[i];
2677 * Helper function for checking if the datatypes of color buffers are
2678 * compatible for glBlitFramebuffer. From the 3.1 spec, page 198:
2680 * "GL_INVALID_OPERATION is generated if mask contains GL_COLOR_BUFFER_BIT
2681 * and any of the following conditions hold:
2682 * - The read buffer contains fixed-point or floating-point values and any
2683 * draw buffer contains neither fixed-point nor floating-point values.
2684 * - The read buffer contains unsigned integer values and any draw buffer
2685 * does not contain unsigned integer values.
2686 * - The read buffer contains signed integer values and any draw buffer
2687 * does not contain signed integer values."
2690 compatible_color_datatypes(gl_format srcFormat, gl_format dstFormat)
2692 GLenum srcType = _mesa_get_format_datatype(srcFormat);
2693 GLenum dstType = _mesa_get_format_datatype(dstFormat);
2695 if (srcType != GL_INT && srcType != GL_UNSIGNED_INT) {
2696 assert(srcType == GL_UNSIGNED_NORMALIZED ||
2697 srcType == GL_SIGNED_NORMALIZED ||
2698 srcType == GL_FLOAT);
2699 /* Boil any of those types down to GL_FLOAT */
2703 if (dstType != GL_INT && dstType != GL_UNSIGNED_INT) {
2704 assert(dstType == GL_UNSIGNED_NORMALIZED ||
2705 dstType == GL_SIGNED_NORMALIZED ||
2706 dstType == GL_FLOAT);
2707 /* Boil any of those types down to GL_FLOAT */
2711 return srcType == dstType;
2716 * Return the equivalent non-generic internal format.
2717 * This is useful for comparing whether two internal formats are semantically
2721 get_nongeneric_internalformat(GLenum format)
2724 /* GL 1.1 formats. */
2734 case GL_LUMINANCE_ALPHA:
2735 return GL_LUMINANCE8_ALPHA8;
2739 return GL_LUMINANCE8;
2745 return GL_INTENSITY8;
2747 /* GL_ARB_texture_rg */
2754 /* GL_EXT_texture_sRGB */
2759 return GL_SRGB8_ALPHA8;
2762 return GL_SLUMINANCE8;
2764 case GL_SLUMINANCE_ALPHA:
2765 return GL_SLUMINANCE8_ALPHA8;
2767 /* GL_EXT_texture_snorm */
2769 return GL_RGBA8_SNORM;
2772 return GL_RGB8_SNORM;
2775 return GL_RG8_SNORM;
2780 case GL_LUMINANCE_ALPHA_SNORM:
2781 return GL_LUMINANCE8_ALPHA8_SNORM;
2783 case GL_LUMINANCE_SNORM:
2784 return GL_LUMINANCE8_SNORM;
2786 case GL_ALPHA_SNORM:
2787 return GL_ALPHA8_SNORM;
2789 case GL_INTENSITY_SNORM:
2790 return GL_INTENSITY8_SNORM;
2799 compatible_resolve_formats(const struct gl_renderbuffer *colorReadRb,
2800 const struct gl_renderbuffer *colorDrawRb)
2802 /* The simple case where we know the backing formats are the same.
2804 if (_mesa_get_srgb_format_linear(colorReadRb->Format) ==
2805 _mesa_get_srgb_format_linear(colorDrawRb->Format)) {
2809 /* The Mesa formats are different, so we must check whether the internal
2810 * formats are compatible.
2812 * Under some circumstances, the user may request e.g. two GL_RGBA8
2813 * textures and get two entirely different Mesa formats like RGBA8888 and
2814 * ARGB8888. Drivers behaving like that should be able to cope with
2815 * non-matching formats by themselves, because it's not the user's fault.
2817 if (get_nongeneric_internalformat(colorReadRb->InternalFormat) ==
2818 get_nongeneric_internalformat(colorDrawRb->InternalFormat)) {
2827 * Blit rectangular region, optionally from one framebuffer to another.
2829 * Note, if the src buffer is multisampled and the dest is not, this is
2830 * when the samples must be resolved to a single color.
2833 _mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
2834 GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
2835 GLbitfield mask, GLenum filter)
2837 const GLbitfield legalMaskBits = (GL_COLOR_BUFFER_BIT |
2838 GL_DEPTH_BUFFER_BIT |
2839 GL_STENCIL_BUFFER_BIT);
2840 const struct gl_framebuffer *readFb, *drawFb;
2841 const struct gl_renderbuffer *colorReadRb, *colorDrawRb;
2842 GET_CURRENT_CONTEXT(ctx);
2844 ASSERT_OUTSIDE_BEGIN_END(ctx);
2845 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
2847 if (MESA_VERBOSE & VERBOSE_API)
2849 "glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d, 0x%x, %s)\n",
2850 srcX0, srcY0, srcX1, srcY1,
2851 dstX0, dstY0, dstX1, dstY1,
2852 mask, _mesa_lookup_enum_by_nr(filter));
2854 if (ctx->NewState) {
2855 _mesa_update_state(ctx);
2858 readFb = ctx->ReadBuffer;
2859 drawFb = ctx->DrawBuffer;
2861 if (!readFb || !drawFb) {
2862 /* This will normally never happen but someday we may want to
2863 * support MakeCurrent() with no drawables.
2868 /* check for complete framebuffers */
2869 if (drawFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT ||
2870 readFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2871 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2872 "glBlitFramebufferEXT(incomplete draw/read buffers)");
2876 if (filter != GL_NEAREST && filter != GL_LINEAR) {
2877 _mesa_error(ctx, GL_INVALID_ENUM, "glBlitFramebufferEXT(filter)");
2881 if (mask & ~legalMaskBits) {
2882 _mesa_error( ctx, GL_INVALID_VALUE, "glBlitFramebufferEXT(mask)");
2886 /* depth/stencil must be blitted with nearest filtering */
2887 if ((mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT))
2888 && filter != GL_NEAREST) {
2889 _mesa_error(ctx, GL_INVALID_OPERATION,
2890 "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter)");
2894 /* get color read/draw renderbuffers */
2895 if (mask & GL_COLOR_BUFFER_BIT) {
2896 colorReadRb = readFb->_ColorReadBuffer;
2897 colorDrawRb = drawFb->_ColorDrawBuffers[0];
2899 /* From the EXT_framebuffer_object spec:
2901 * "If a buffer is specified in <mask> and does not exist in both
2902 * the read and draw framebuffers, the corresponding bit is silently
2905 if ((colorReadRb == NULL) || (colorDrawRb == NULL)) {
2906 colorReadRb = colorDrawRb = NULL;
2907 mask &= ~GL_COLOR_BUFFER_BIT;
2909 else if (!compatible_color_datatypes(colorReadRb->Format,
2910 colorDrawRb->Format)) {
2911 _mesa_error(ctx, GL_INVALID_OPERATION,
2912 "glBlitFramebufferEXT(color buffer datatypes mismatch)");
2917 colorReadRb = colorDrawRb = NULL;
2920 if (mask & GL_STENCIL_BUFFER_BIT) {
2921 struct gl_renderbuffer *readRb =
2922 readFb->Attachment[BUFFER_STENCIL].Renderbuffer;
2923 struct gl_renderbuffer *drawRb =
2924 drawFb->Attachment[BUFFER_STENCIL].Renderbuffer;
2926 /* From the EXT_framebuffer_object spec:
2928 * "If a buffer is specified in <mask> and does not exist in both
2929 * the read and draw framebuffers, the corresponding bit is silently
2932 if ((readRb == NULL) || (drawRb == NULL)) {
2933 mask &= ~GL_STENCIL_BUFFER_BIT;
2935 else if (_mesa_get_format_bits(readRb->Format, GL_STENCIL_BITS) !=
2936 _mesa_get_format_bits(drawRb->Format, GL_STENCIL_BITS)) {
2937 /* There is no need to check the stencil datatype here, because
2938 * there is only one: GL_UNSIGNED_INT.
2940 _mesa_error(ctx, GL_INVALID_OPERATION,
2941 "glBlitFramebufferEXT(stencil buffer size mismatch)");
2946 if (mask & GL_DEPTH_BUFFER_BIT) {
2947 struct gl_renderbuffer *readRb =
2948 readFb->Attachment[BUFFER_DEPTH].Renderbuffer;
2949 struct gl_renderbuffer *drawRb =
2950 drawFb->Attachment[BUFFER_DEPTH].Renderbuffer;
2952 /* From the EXT_framebuffer_object spec:
2954 * "If a buffer is specified in <mask> and does not exist in both
2955 * the read and draw framebuffers, the corresponding bit is silently
2958 if ((readRb == NULL) || (drawRb == NULL)) {
2959 mask &= ~GL_DEPTH_BUFFER_BIT;
2961 else if ((_mesa_get_format_bits(readRb->Format, GL_DEPTH_BITS) !=
2962 _mesa_get_format_bits(drawRb->Format, GL_DEPTH_BITS)) ||
2963 (_mesa_get_format_datatype(readRb->Format) !=
2964 _mesa_get_format_datatype(drawRb->Format))) {
2965 _mesa_error(ctx, GL_INVALID_OPERATION,
2966 "glBlitFramebufferEXT(depth buffer format mismatch)");
2971 if (readFb->Visual.samples > 0 &&
2972 drawFb->Visual.samples > 0 &&
2973 readFb->Visual.samples != drawFb->Visual.samples) {
2974 _mesa_error(ctx, GL_INVALID_OPERATION,
2975 "glBlitFramebufferEXT(mismatched samples)");
2979 /* extra checks for multisample copies... */
2980 if (readFb->Visual.samples > 0 || drawFb->Visual.samples > 0) {
2981 /* src and dest region sizes must be the same */
2982 if (abs(srcX1 - srcX0) != abs(dstX1 - dstX0) ||
2983 abs(srcY1 - srcY0) != abs(dstY1 - dstY0)) {
2984 _mesa_error(ctx, GL_INVALID_OPERATION,
2985 "glBlitFramebufferEXT(bad src/dst multisample region sizes)");
2989 /* color formats must match */
2992 !compatible_resolve_formats(colorReadRb, colorDrawRb)) {
2993 _mesa_error(ctx, GL_INVALID_OPERATION,
2994 "glBlitFramebufferEXT(bad src/dst multisample pixel formats)");
2999 if (filter == GL_LINEAR && (mask & GL_COLOR_BUFFER_BIT)) {
3000 /* 3.1 spec, page 199:
3001 * "Calling BlitFramebuffer will result in an INVALID_OPERATION error
3002 * if filter is LINEAR and read buffer contains integer data."
3004 GLenum type = _mesa_get_format_datatype(colorReadRb->Format);
3005 if (type == GL_INT || type == GL_UNSIGNED_INT) {
3006 _mesa_error(ctx, GL_INVALID_OPERATION,
3007 "glBlitFramebufferEXT(integer color type)");
3012 if (!ctx->Extensions.EXT_framebuffer_blit) {
3013 _mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebufferEXT");
3019 printf("glBlitFramebuffer(%d, %d, %d, %d, %d, %d, %d, %d,"
3021 srcX0, srcY0, srcX1, srcY1,
3022 dstX0, dstY0, dstX1, dstY1,
3025 const struct gl_renderbuffer_attachment *att;
3027 att = find_attachment(readFb, colorReadRb);
3028 printf(" Src FBO %u RB %u (%dx%d) ",
3029 readFb->Name, colorReadRb->Name,
3030 colorReadRb->Width, colorReadRb->Height);
3031 if (att && att->Texture) {
3032 printf("Tex %u tgt 0x%x level %u face %u",
3034 att->Texture->Target,
3040 att = find_attachment(drawFb, colorDrawRb);
3041 printf(" Dst FBO %u RB %u (%dx%d) ",
3042 drawFb->Name, colorDrawRb->Name,
3043 colorDrawRb->Width, colorDrawRb->Height);
3044 if (att && att->Texture) {
3045 printf("Tex %u tgt 0x%x level %u face %u",
3047 att->Texture->Target,
3059 ASSERT(ctx->Driver.BlitFramebuffer);
3060 ctx->Driver.BlitFramebuffer(ctx,
3061 srcX0, srcY0, srcX1, srcY1,
3062 dstX0, dstY0, dstX1, dstY1,
3068 invalidate_framebuffer_storage(GLenum target, GLsizei numAttachments,
3069 const GLenum *attachments, GLint x, GLint y,
3070 GLsizei width, GLsizei height, const char *name)
3073 struct gl_framebuffer *fb;
3074 GET_CURRENT_CONTEXT(ctx);
3076 ASSERT_OUTSIDE_BEGIN_END(ctx);
3078 fb = get_framebuffer_target(ctx, target);
3080 _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", name);
3084 if (numAttachments < 0) {
3085 _mesa_error(ctx, GL_INVALID_VALUE,
3086 "%s(numAttachments < 0)", name);
3090 /* The GL_ARB_invalidate_subdata spec says:
3092 * "If an attachment is specified that does not exist in the
3093 * framebuffer bound to <target>, it is ignored."
3097 * "If <attachments> contains COLOR_ATTACHMENTm and m is greater than
3098 * or equal to the value of MAX_COLOR_ATTACHMENTS, then the error
3099 * INVALID_OPERATION is generated."
3101 * No mention is made of GL_AUXi being out of range. Therefore, we allow
3102 * any enum that can be allowed by the API (OpenGL ES 3.0 has a different
3103 * set of retrictions).
3105 for (i = 0; i < numAttachments; i++) {
3106 if (_mesa_is_winsys_fbo(fb)) {
3107 switch (attachments[i]) {
3113 /* Accumulation buffers and auxilary buffers were removed in
3114 * OpenGL 3.1, and they never existed in OpenGL ES.
3116 if (ctx->API != API_OPENGL)
3126 case GL_FRONT_RIGHT:
3127 if (!_mesa_is_desktop_gl(ctx))
3134 switch (attachments[i]) {
3135 case GL_DEPTH_ATTACHMENT:
3136 case GL_STENCIL_ATTACHMENT:
3138 case GL_COLOR_ATTACHMENT0:
3139 case GL_COLOR_ATTACHMENT1:
3140 case GL_COLOR_ATTACHMENT2:
3141 case GL_COLOR_ATTACHMENT3:
3142 case GL_COLOR_ATTACHMENT4:
3143 case GL_COLOR_ATTACHMENT5:
3144 case GL_COLOR_ATTACHMENT6:
3145 case GL_COLOR_ATTACHMENT7:
3146 case GL_COLOR_ATTACHMENT8:
3147 case GL_COLOR_ATTACHMENT9:
3148 case GL_COLOR_ATTACHMENT10:
3149 case GL_COLOR_ATTACHMENT11:
3150 case GL_COLOR_ATTACHMENT12:
3151 case GL_COLOR_ATTACHMENT13:
3152 case GL_COLOR_ATTACHMENT14:
3153 case GL_COLOR_ATTACHMENT15: {
3154 const int k = attachments[i] - GL_COLOR_ATTACHMENT0;
3155 if (k >= ctx->Const.MaxColorAttachments) {
3156 _mesa_error(ctx, GL_INVALID_OPERATION,
3157 "%s(attachment >= max. color attachments)", name);
3167 /* We don't actually do anything for this yet. Just return after
3168 * validating the parameters and generating the required errors.
3173 _mesa_error(ctx, GL_INVALID_ENUM, "%s(attachment)", name);
3178 _mesa_InvalidateSubFramebuffer(GLenum target, GLsizei numAttachments,
3179 const GLenum *attachments, GLint x, GLint y,
3180 GLsizei width, GLsizei height)
3182 invalidate_framebuffer_storage(target, numAttachments, attachments,
3183 x, y, width, height,
3184 "glInvalidateSubFramebuffer");
3188 _mesa_InvalidateFramebuffer(GLenum target, GLsizei numAttachments,
3189 const GLenum *attachments)
3191 /* The GL_ARB_invalidate_subdata spec says:
3195 * void InvalidateFramebuffer(enum target,
3196 * sizei numAttachments,
3197 * const enum *attachments);
3199 * is equivalent to the command InvalidateSubFramebuffer with <x>, <y>,
3200 * <width>, <height> equal to 0, 0, <MAX_VIEWPORT_DIMS[0]>,
3201 * <MAX_VIEWPORT_DIMS[1]> respectively."
3203 invalidate_framebuffer_storage(target, numAttachments, attachments,
3204 0, 0, MAX_VIEWPORT_WIDTH, MAX_VIEWPORT_HEIGHT,
3205 "glInvalidateFramebuffer");