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
38 #include "framebuffer.h"
42 #include "renderbuffer.h"
52 * None of the GL_EXT_framebuffer_object functions are compiled into
59 * When glGenRender/FramebuffersEXT() is called we insert pointers to
60 * these placeholder objects into the hash table.
61 * Later, when the object ID is first bound, we replace the placeholder
62 * with the real frame/renderbuffer.
64 static struct gl_framebuffer DummyFramebuffer;
65 static struct gl_renderbuffer DummyRenderbuffer;
68 #define IS_CUBE_FACE(TARGET) \
69 ((TARGET) >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && \
70 (TARGET) <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z)
74 delete_dummy_renderbuffer(struct gl_renderbuffer *rb)
80 delete_dummy_framebuffer(struct gl_framebuffer *fb)
87 _mesa_init_fbobjects(GLcontext *ctx)
89 DummyFramebuffer.Delete = delete_dummy_framebuffer;
90 DummyRenderbuffer.Delete = delete_dummy_renderbuffer;
95 * Helper routine for getting a gl_renderbuffer.
97 struct gl_renderbuffer *
98 _mesa_lookup_renderbuffer(GLcontext *ctx, GLuint id)
100 struct gl_renderbuffer *rb;
105 rb = (struct gl_renderbuffer *)
106 _mesa_HashLookup(ctx->Shared->RenderBuffers, id);
112 * Helper routine for getting a gl_framebuffer.
114 struct gl_framebuffer *
115 _mesa_lookup_framebuffer(GLcontext *ctx, GLuint id)
117 struct gl_framebuffer *fb;
122 fb = (struct gl_framebuffer *)
123 _mesa_HashLookup(ctx->Shared->FrameBuffers, id);
129 * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding
130 * gl_renderbuffer_attachment object.
132 struct gl_renderbuffer_attachment *
133 _mesa_get_attachment(GLcontext *ctx, struct gl_framebuffer *fb,
138 switch (attachment) {
139 case GL_COLOR_ATTACHMENT0_EXT:
140 case GL_COLOR_ATTACHMENT1_EXT:
141 case GL_COLOR_ATTACHMENT2_EXT:
142 case GL_COLOR_ATTACHMENT3_EXT:
143 case GL_COLOR_ATTACHMENT4_EXT:
144 case GL_COLOR_ATTACHMENT5_EXT:
145 case GL_COLOR_ATTACHMENT6_EXT:
146 case GL_COLOR_ATTACHMENT7_EXT:
147 case GL_COLOR_ATTACHMENT8_EXT:
148 case GL_COLOR_ATTACHMENT9_EXT:
149 case GL_COLOR_ATTACHMENT10_EXT:
150 case GL_COLOR_ATTACHMENT11_EXT:
151 case GL_COLOR_ATTACHMENT12_EXT:
152 case GL_COLOR_ATTACHMENT13_EXT:
153 case GL_COLOR_ATTACHMENT14_EXT:
154 case GL_COLOR_ATTACHMENT15_EXT:
155 i = attachment - GL_COLOR_ATTACHMENT0_EXT;
156 if (i >= ctx->Const.MaxColorAttachments) {
159 return &fb->Attachment[BUFFER_COLOR0 + i];
160 case GL_DEPTH_ATTACHMENT_EXT:
161 return &fb->Attachment[BUFFER_DEPTH];
162 case GL_STENCIL_ATTACHMENT_EXT:
163 return &fb->Attachment[BUFFER_STENCIL];
171 * Remove any texture or renderbuffer attached to the given attachment
172 * point. Update reference counts, etc.
175 _mesa_remove_attachment(GLcontext *ctx, struct gl_renderbuffer_attachment *att)
177 if (att->Type == GL_TEXTURE) {
178 ASSERT(att->Texture);
179 if (ctx->Driver.FinishRenderTexture) {
180 /* tell driver we're done rendering to this texobj */
181 ctx->Driver.FinishRenderTexture(ctx, att);
183 _mesa_reference_texobj(&att->Texture, NULL); /* unbind */
184 ASSERT(!att->Texture);
186 if (att->Type == GL_TEXTURE || att->Type == GL_RENDERBUFFER_EXT) {
187 ASSERT(!att->Texture);
188 _mesa_reference_renderbuffer(&att->Renderbuffer, NULL); /* unbind */
189 ASSERT(!att->Renderbuffer);
192 att->Complete = GL_TRUE;
197 * Bind a texture object to an attachment point.
198 * The previous binding, if any, will be removed first.
201 _mesa_set_texture_attachment(GLcontext *ctx,
202 struct gl_framebuffer *fb,
203 struct gl_renderbuffer_attachment *att,
204 struct gl_texture_object *texObj,
205 GLenum texTarget, GLuint level, GLuint zoffset)
207 if (att->Texture == texObj) {
208 /* re-attaching same texture */
209 ASSERT(att->Type == GL_TEXTURE);
213 _mesa_remove_attachment(ctx, att);
214 att->Type = GL_TEXTURE;
215 assert(!att->Texture);
216 _mesa_reference_texobj(&att->Texture, texObj);
219 /* always update these fields */
220 att->TextureLevel = level;
221 if (IS_CUBE_FACE(texTarget)) {
222 att->CubeMapFace = texTarget - GL_TEXTURE_CUBE_MAP_POSITIVE_X;
225 att->CubeMapFace = 0;
227 att->Zoffset = zoffset;
228 att->Complete = GL_FALSE;
230 if (att->Texture->Image[att->CubeMapFace][att->TextureLevel]) {
231 ctx->Driver.RenderTexture(ctx, fb, att);
237 * Bind a renderbuffer to an attachment point.
238 * The previous binding, if any, will be removed first.
241 _mesa_set_renderbuffer_attachment(GLcontext *ctx,
242 struct gl_renderbuffer_attachment *att,
243 struct gl_renderbuffer *rb)
245 /* XXX check if re-doing same attachment, exit early */
246 _mesa_remove_attachment(ctx, att);
247 att->Type = GL_RENDERBUFFER_EXT;
248 att->Texture = NULL; /* just to be safe */
249 att->Complete = GL_FALSE;
250 _mesa_reference_renderbuffer(&att->Renderbuffer, rb);
255 * Fallback for ctx->Driver.FramebufferRenderbuffer()
256 * Attach a renderbuffer object to a framebuffer object.
259 _mesa_framebuffer_renderbuffer(GLcontext *ctx, struct gl_framebuffer *fb,
260 GLenum attachment, struct gl_renderbuffer *rb)
262 struct gl_renderbuffer_attachment *att;
264 _glthread_LOCK_MUTEX(fb->Mutex);
266 att = _mesa_get_attachment(ctx, fb, attachment);
269 _mesa_set_renderbuffer_attachment(ctx, att, rb);
272 _mesa_remove_attachment(ctx, att);
275 _glthread_UNLOCK_MUTEX(fb->Mutex);
280 * Test if an attachment point is complete and update its Complete field.
281 * \param format if GL_COLOR, this is a color attachment point,
282 * if GL_DEPTH, this is a depth component attachment point,
283 * if GL_STENCIL, this is a stencil component attachment point.
286 test_attachment_completeness(const GLcontext *ctx, GLenum format,
287 struct gl_renderbuffer_attachment *att)
289 assert(format == GL_COLOR || format == GL_DEPTH || format == GL_STENCIL);
291 /* assume complete */
292 att->Complete = GL_TRUE;
294 /* Look for reasons why the attachment might be incomplete */
295 if (att->Type == GL_TEXTURE) {
296 const struct gl_texture_object *texObj = att->Texture;
297 struct gl_texture_image *texImage;
300 att->Complete = GL_FALSE;
304 texImage = texObj->Image[att->CubeMapFace][att->TextureLevel];
306 att->Complete = GL_FALSE;
309 if (texImage->Width < 1 || texImage->Height < 1) {
310 att->Complete = GL_FALSE;
313 if (texObj->Target == GL_TEXTURE_3D && att->Zoffset >= texImage->Depth) {
314 att->Complete = GL_FALSE;
318 if (format == GL_COLOR) {
319 if (texImage->TexFormat->BaseFormat != GL_RGB &&
320 texImage->TexFormat->BaseFormat != GL_RGBA) {
321 att->Complete = GL_FALSE;
325 else if (format == GL_DEPTH) {
326 if (texImage->TexFormat->BaseFormat == GL_DEPTH_COMPONENT) {
329 else if (ctx->Extensions.EXT_packed_depth_stencil &&
330 texImage->TexFormat->BaseFormat == GL_DEPTH_STENCIL_EXT) {
334 att->Complete = GL_FALSE;
339 /* no such thing as stencil textures */
340 att->Complete = GL_FALSE;
344 else if (att->Type == GL_RENDERBUFFER_EXT) {
345 ASSERT(att->Renderbuffer);
346 if (!att->Renderbuffer->InternalFormat ||
347 att->Renderbuffer->Width < 1 ||
348 att->Renderbuffer->Height < 1) {
349 att->Complete = GL_FALSE;
352 if (format == GL_COLOR) {
353 if (att->Renderbuffer->_BaseFormat != GL_RGB &&
354 att->Renderbuffer->_BaseFormat != GL_RGBA) {
355 ASSERT(att->Renderbuffer->RedBits);
356 ASSERT(att->Renderbuffer->GreenBits);
357 ASSERT(att->Renderbuffer->BlueBits);
358 att->Complete = GL_FALSE;
362 else if (format == GL_DEPTH) {
363 ASSERT(att->Renderbuffer->DepthBits);
364 if (att->Renderbuffer->_BaseFormat == GL_DEPTH_COMPONENT) {
367 else if (ctx->Extensions.EXT_packed_depth_stencil &&
368 att->Renderbuffer->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
372 att->Complete = GL_FALSE;
377 assert(format == GL_STENCIL);
378 ASSERT(att->Renderbuffer->StencilBits);
379 if (att->Renderbuffer->_BaseFormat == GL_STENCIL_INDEX) {
382 else if (ctx->Extensions.EXT_packed_depth_stencil &&
383 att->Renderbuffer->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
387 att->Complete = GL_FALSE;
393 ASSERT(att->Type == GL_NONE);
401 * Helpful for debugging
404 fbo_incomplete(const char *msg, int index)
409 _mesa_debug(NULL, "FBO Incomplete: %s [%d]\n", msg, index);
415 * Test if the given framebuffer object is complete and update its
416 * Status field with the results.
417 * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
418 * driver to make hardware-specific validation/completeness checks.
419 * Also update the framebuffer's Width and Height fields if the
420 * framebuffer is complete.
423 _mesa_test_framebuffer_completeness(GLcontext *ctx, struct gl_framebuffer *fb)
426 GLenum intFormat = GL_NONE; /* color buffers' internal format */
427 GLuint minWidth = ~0, minHeight = ~0, maxWidth = 0, maxHeight = 0;
431 assert(fb->Name != 0);
437 /* Start at -2 to more easily loop over all attachment points.
442 for (i = -2; i < (GLint) ctx->Const.MaxColorAttachments; i++) {
443 struct gl_renderbuffer_attachment *att;
447 * XXX for ARB_fbo, only check color buffers that are named by
448 * GL_READ_BUFFER and GL_DRAW_BUFFERi.
451 /* check for attachment completeness
454 att = &fb->Attachment[BUFFER_DEPTH];
455 test_attachment_completeness(ctx, GL_DEPTH, att);
456 if (!att->Complete) {
457 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
458 fbo_incomplete("depth attachment incomplete", -1);
463 att = &fb->Attachment[BUFFER_STENCIL];
464 test_attachment_completeness(ctx, GL_STENCIL, att);
465 if (!att->Complete) {
466 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
467 fbo_incomplete("stencil attachment incomplete", -1);
472 att = &fb->Attachment[BUFFER_COLOR0 + i];
473 test_attachment_completeness(ctx, GL_COLOR, att);
474 if (!att->Complete) {
475 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
476 fbo_incomplete("color attachment incomplete", i);
481 /* get width, height, format of the renderbuffer/texture
483 if (att->Type == GL_TEXTURE) {
484 const struct gl_texture_image *texImg
485 = att->Texture->Image[att->CubeMapFace][att->TextureLevel];
486 minWidth = MIN2(minWidth, texImg->Width);
487 maxWidth = MAX2(maxWidth, texImg->Width);
488 minHeight = MIN2(minHeight, texImg->Height);
489 maxHeight = MAX2(maxHeight, texImg->Height);
490 f = texImg->_BaseFormat;
492 if (f != GL_RGB && f != GL_RGBA && f != GL_DEPTH_COMPONENT
493 && f != GL_DEPTH_STENCIL_EXT) {
494 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;
495 fbo_incomplete("texture attachment incomplete", -1);
499 else if (att->Type == GL_RENDERBUFFER_EXT) {
500 minWidth = MIN2(minWidth, att->Renderbuffer->Width);
501 maxWidth = MAX2(minWidth, att->Renderbuffer->Width);
502 minHeight = MIN2(minHeight, att->Renderbuffer->Height);
503 maxHeight = MAX2(minHeight, att->Renderbuffer->Height);
504 f = att->Renderbuffer->InternalFormat;
508 assert(att->Type == GL_NONE);
512 /* Error-check width, height, format
514 if (numImages == 1) {
520 if (!ctx->Extensions.ARB_framebuffer_object) {
521 /* check that width, height, format are same */
522 if (minWidth != maxWidth || minHeight != maxHeight) {
523 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT;
524 fbo_incomplete("width or height mismatch", -1);
527 /* check that all color buffer have same format */
528 if (intFormat != GL_NONE && f != intFormat) {
529 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;
530 fbo_incomplete("format mismatch", -1);
537 #ifndef FEATURE_OES_framebuffer_object
538 /* Check that all DrawBuffers are present */
539 for (j = 0; j < ctx->Const.MaxDrawBuffers; j++) {
540 if (fb->ColorDrawBuffer[j] != GL_NONE) {
541 const struct gl_renderbuffer_attachment *att
542 = _mesa_get_attachment(ctx, fb, fb->ColorDrawBuffer[j]);
544 if (att->Type == GL_NONE) {
545 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT;
546 fbo_incomplete("missing drawbuffer", j);
552 /* Check that the ReadBuffer is present */
553 if (fb->ColorReadBuffer != GL_NONE) {
554 const struct gl_renderbuffer_attachment *att
555 = _mesa_get_attachment(ctx, fb, fb->ColorReadBuffer);
557 if (att->Type == GL_NONE) {
558 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT;
559 fbo_incomplete("missing readbuffer", -1);
565 if (numImages == 0) {
566 fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT;
567 fbo_incomplete("no attachments", -1);
571 /* Provisionally set status = COMPLETE ... */
572 fb->_Status = GL_FRAMEBUFFER_COMPLETE_EXT;
574 /* ... but the driver may say the FB is incomplete.
575 * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
578 if (ctx->Driver.ValidateFramebuffer) {
579 ctx->Driver.ValidateFramebuffer(ctx, fb);
580 if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
581 fbo_incomplete("driver marked FBO as incomplete", -1);
585 if (fb->_Status == GL_FRAMEBUFFER_COMPLETE_EXT) {
587 * Note that if ARB_framebuffer_object is supported and the attached
588 * renderbuffers/textures are different sizes, the framebuffer
589 * width/height will be set to the smallest width/height.
591 fb->Width = minWidth;
592 fb->Height = minHeight;
598 _mesa_IsRenderbufferEXT(GLuint renderbuffer)
600 GET_CURRENT_CONTEXT(ctx);
601 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
603 struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
604 if (rb != NULL && rb != &DummyRenderbuffer)
612 _mesa_BindRenderbufferEXT(GLenum target, GLuint renderbuffer)
614 struct gl_renderbuffer *newRb;
615 GET_CURRENT_CONTEXT(ctx);
617 ASSERT_OUTSIDE_BEGIN_END(ctx);
619 if (target != GL_RENDERBUFFER_EXT) {
620 _mesa_error(ctx, GL_INVALID_ENUM,
621 "glBindRenderbufferEXT(target)");
625 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
626 /* The above doesn't fully flush the drivers in the way that a
627 * glFlush does, but that is required here:
629 if (ctx->Driver.Flush)
630 ctx->Driver.Flush(ctx);
634 newRb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
635 if (newRb == &DummyRenderbuffer) {
636 /* ID was reserved, but no real renderbuffer object made yet */
639 else if (!newRb && ctx->Extensions.ARB_framebuffer_object) {
640 /* All RB IDs must be Gen'd */
641 _mesa_error(ctx, GL_INVALID_OPERATION, "glBindRenderbuffer(buffer)");
646 /* create new renderbuffer object */
647 newRb = ctx->Driver.NewRenderbuffer(ctx, renderbuffer);
649 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindRenderbufferEXT");
652 ASSERT(newRb->AllocStorage);
653 _mesa_HashInsert(ctx->Shared->RenderBuffers, renderbuffer, newRb);
654 newRb->RefCount = 1; /* referenced by hash table */
661 ASSERT(newRb != &DummyRenderbuffer);
663 _mesa_reference_renderbuffer(&ctx->CurrentRenderbuffer, newRb);
668 _mesa_DeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers)
671 GET_CURRENT_CONTEXT(ctx);
673 ASSERT_OUTSIDE_BEGIN_END(ctx);
674 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
676 for (i = 0; i < n; i++) {
677 if (renderbuffers[i] > 0) {
678 struct gl_renderbuffer *rb;
679 rb = _mesa_lookup_renderbuffer(ctx, renderbuffers[i]);
681 /* check if deleting currently bound renderbuffer object */
682 if (rb == ctx->CurrentRenderbuffer) {
684 ASSERT(rb->RefCount >= 2);
685 _mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
688 /* Remove from hash table immediately, to free the ID.
689 * But the object will not be freed until it's no longer
690 * referenced anywhere else.
692 _mesa_HashRemove(ctx->Shared->RenderBuffers, renderbuffers[i]);
694 if (rb != &DummyRenderbuffer) {
695 /* no longer referenced by hash table */
696 _mesa_reference_renderbuffer(&rb, NULL);
705 _mesa_GenRenderbuffersEXT(GLsizei n, GLuint *renderbuffers)
707 GET_CURRENT_CONTEXT(ctx);
711 ASSERT_OUTSIDE_BEGIN_END(ctx);
714 _mesa_error(ctx, GL_INVALID_VALUE, "glGenRenderbuffersEXT(n)");
721 first = _mesa_HashFindFreeKeyBlock(ctx->Shared->RenderBuffers, n);
723 for (i = 0; i < n; i++) {
724 GLuint name = first + i;
725 renderbuffers[i] = name;
726 /* insert dummy placeholder into hash table */
727 _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
728 _mesa_HashInsert(ctx->Shared->RenderBuffers, name, &DummyRenderbuffer);
729 _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
735 * Given an internal format token for a render buffer, return the
736 * corresponding base format.
737 * This is very similar to _mesa_base_tex_format() but the set of valid
738 * internal formats is somewhat different.
740 * \return one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX, GL_DEPTH_COMPONENT
741 * GL_DEPTH_STENCIL_EXT or zero if error.
744 _mesa_base_fbo_format(GLcontext *ctx, GLenum internalFormat)
746 switch (internalFormat) {
765 case GL_STENCIL_INDEX:
766 case GL_STENCIL_INDEX1_EXT:
767 case GL_STENCIL_INDEX4_EXT:
768 case GL_STENCIL_INDEX8_EXT:
769 case GL_STENCIL_INDEX16_EXT:
770 return GL_STENCIL_INDEX;
771 case GL_DEPTH_COMPONENT:
772 case GL_DEPTH_COMPONENT16:
773 case GL_DEPTH_COMPONENT24:
774 case GL_DEPTH_COMPONENT32:
775 return GL_DEPTH_COMPONENT;
776 case GL_DEPTH_STENCIL_EXT:
777 case GL_DEPTH24_STENCIL8_EXT:
778 if (ctx->Extensions.EXT_packed_depth_stencil)
779 return GL_DEPTH_STENCIL_EXT;
782 /* XXX add floating point formats eventually */
789 /** sentinal value, see below */
790 #define NO_SAMPLES 1000
794 * Helper function used by _mesa_RenderbufferStorageEXT() and
795 * _mesa_RenderbufferStorageMultisample().
796 * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorageEXT().
799 renderbuffer_storage(GLenum target, GLenum internalFormat,
800 GLsizei width, GLsizei height, GLsizei samples)
802 const char *func = samples == NO_SAMPLES ?
803 "glRenderbufferStorage" : "RenderbufferStorageMultisample";
804 struct gl_renderbuffer *rb;
806 GET_CURRENT_CONTEXT(ctx);
808 ASSERT_OUTSIDE_BEGIN_END(ctx);
810 if (target != GL_RENDERBUFFER_EXT) {
811 _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", func);
815 baseFormat = _mesa_base_fbo_format(ctx, internalFormat);
816 if (baseFormat == 0) {
817 _mesa_error(ctx, GL_INVALID_ENUM, "%s(internalFormat)", func);
821 if (width < 1 || width > (GLsizei) ctx->Const.MaxRenderbufferSize) {
822 _mesa_error(ctx, GL_INVALID_VALUE, "%s(width)", func);
826 if (height < 1 || height > (GLsizei) ctx->Const.MaxRenderbufferSize) {
827 _mesa_error(ctx, GL_INVALID_VALUE, "%s(height)", func);
831 if (samples == NO_SAMPLES) {
832 /* NumSamples == 0 indicates non-multisampling */
835 else if (samples > ctx->Const.MaxSamples) {
836 _mesa_error(ctx, GL_INVALID_VALUE, "%s(samples)", func);
840 rb = ctx->CurrentRenderbuffer;
842 _mesa_error(ctx, GL_INVALID_OPERATION, func);
846 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
848 if (rb->InternalFormat == internalFormat &&
849 rb->Width == (GLuint) width &&
850 rb->Height == (GLuint) height) {
851 /* no change in allocation needed */
855 /* These MUST get set by the AllocStorage func */
856 rb->_ActualFormat = 0;
864 rb->NumSamples = samples;
866 /* Now allocate the storage */
867 ASSERT(rb->AllocStorage);
868 if (rb->AllocStorage(ctx, rb, internalFormat, width, height)) {
869 /* No error - check/set fields now */
870 assert(rb->_ActualFormat);
871 assert(rb->Width == (GLuint) width);
872 assert(rb->Height == (GLuint) height);
873 assert(rb->RedBits || rb->GreenBits || rb->BlueBits || rb->AlphaBits ||
874 rb->DepthBits || rb->StencilBits || rb->IndexBits);
875 rb->InternalFormat = internalFormat;
876 rb->_BaseFormat = baseFormat;
879 /* Probably ran out of memory - clear the fields */
882 rb->InternalFormat = GL_NONE;
883 rb->_ActualFormat = GL_NONE;
884 rb->_BaseFormat = GL_NONE;
896 test_framebuffer_completeness(ctx, fb);
898 /* XXX if this renderbuffer is attached anywhere, invalidate attachment
905 _mesa_RenderbufferStorageEXT(GLenum target, GLenum internalFormat,
906 GLsizei width, GLsizei height)
908 renderbuffer_storage(target, internalFormat, width, height, NO_SAMPLES);
913 _mesa_RenderbufferStorageMultisample(GLenum target, GLsizei samples,
914 GLenum internalFormat,
915 GLsizei width, GLsizei height)
917 renderbuffer_storage(target, internalFormat, width, height, samples);
923 _mesa_GetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint *params)
925 GET_CURRENT_CONTEXT(ctx);
927 ASSERT_OUTSIDE_BEGIN_END(ctx);
929 if (target != GL_RENDERBUFFER_EXT) {
930 _mesa_error(ctx, GL_INVALID_ENUM,
931 "glGetRenderbufferParameterivEXT(target)");
935 if (!ctx->CurrentRenderbuffer) {
936 _mesa_error(ctx, GL_INVALID_OPERATION,
937 "glGetRenderbufferParameterivEXT");
941 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
944 case GL_RENDERBUFFER_WIDTH_EXT:
945 *params = ctx->CurrentRenderbuffer->Width;
947 case GL_RENDERBUFFER_HEIGHT_EXT:
948 *params = ctx->CurrentRenderbuffer->Height;
950 case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT:
951 *params = ctx->CurrentRenderbuffer->InternalFormat;
953 case GL_RENDERBUFFER_RED_SIZE_EXT:
954 *params = ctx->CurrentRenderbuffer->RedBits;
956 case GL_RENDERBUFFER_GREEN_SIZE_EXT:
957 *params = ctx->CurrentRenderbuffer->GreenBits;
959 case GL_RENDERBUFFER_BLUE_SIZE_EXT:
960 *params = ctx->CurrentRenderbuffer->BlueBits;
962 case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
963 *params = ctx->CurrentRenderbuffer->AlphaBits;
965 case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
966 *params = ctx->CurrentRenderbuffer->DepthBits;
968 case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
969 *params = ctx->CurrentRenderbuffer->StencilBits;
972 _mesa_error(ctx, GL_INVALID_ENUM,
973 "glGetRenderbufferParameterivEXT(target)");
980 _mesa_IsFramebufferEXT(GLuint framebuffer)
982 GET_CURRENT_CONTEXT(ctx);
983 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
985 struct gl_framebuffer *rb = _mesa_lookup_framebuffer(ctx, framebuffer);
986 if (rb != NULL && rb != &DummyFramebuffer)
994 check_begin_texture_render(GLcontext *ctx, struct gl_framebuffer *fb)
997 ASSERT(ctx->Driver.RenderTexture);
998 for (i = 0; i < BUFFER_COUNT; i++) {
999 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
1000 struct gl_texture_object *texObj = att->Texture;
1002 && att->Texture->Image[att->CubeMapFace][att->TextureLevel]) {
1003 ctx->Driver.RenderTexture(ctx, fb, att);
1010 * Examine all the framebuffer's attachments to see if any are textures.
1011 * If so, call ctx->Driver.FinishRenderTexture() for each texture to
1012 * notify the device driver that the texture image may have changed.
1015 check_end_texture_render(GLcontext *ctx, struct gl_framebuffer *fb)
1017 if (ctx->Driver.FinishRenderTexture) {
1019 for (i = 0; i < BUFFER_COUNT; i++) {
1020 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
1021 if (att->Texture && att->Renderbuffer) {
1022 ctx->Driver.FinishRenderTexture(ctx, att);
1030 _mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
1032 struct gl_framebuffer *newFb, *newFbread;
1033 GLboolean bindReadBuf, bindDrawBuf;
1034 GET_CURRENT_CONTEXT(ctx);
1037 if (ctx->Extensions.ARB_framebuffer_object) {
1038 ASSERT(ctx->Extensions.EXT_framebuffer_object);
1039 ASSERT(ctx->Extensions.EXT_framebuffer_blit);
1043 ASSERT_OUTSIDE_BEGIN_END(ctx);
1045 if (!ctx->Extensions.EXT_framebuffer_object) {
1046 _mesa_error(ctx, GL_INVALID_OPERATION,
1047 "glBindFramebufferEXT(unsupported)");
1052 #if FEATURE_EXT_framebuffer_blit
1053 case GL_DRAW_FRAMEBUFFER_EXT:
1054 if (!ctx->Extensions.EXT_framebuffer_blit) {
1055 _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
1058 bindDrawBuf = GL_TRUE;
1059 bindReadBuf = GL_FALSE;
1061 case GL_READ_FRAMEBUFFER_EXT:
1062 if (!ctx->Extensions.EXT_framebuffer_blit) {
1063 _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
1066 bindDrawBuf = GL_FALSE;
1067 bindReadBuf = GL_TRUE;
1070 case GL_FRAMEBUFFER_EXT:
1071 bindDrawBuf = GL_TRUE;
1072 bindReadBuf = GL_TRUE;
1075 _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
1079 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1081 if (ctx->Driver.Flush) {
1082 ctx->Driver.Flush(ctx);
1086 /* Binding a user-created framebuffer object */
1087 newFb = _mesa_lookup_framebuffer(ctx, framebuffer);
1088 if (newFb == &DummyFramebuffer) {
1089 /* ID was reserved, but no real framebuffer object made yet */
1092 else if (!newFb && ctx->Extensions.ARB_framebuffer_object) {
1093 /* All FBO IDs must be Gen'd */
1094 _mesa_error(ctx, GL_INVALID_OPERATION, "glBindFramebuffer(buffer)");
1099 /* create new framebuffer object */
1100 newFb = ctx->Driver.NewFramebuffer(ctx, framebuffer);
1102 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindFramebufferEXT");
1105 _mesa_HashInsert(ctx->Shared->FrameBuffers, framebuffer, newFb);
1110 /* Binding the window system framebuffer (which was originally set
1111 * with MakeCurrent).
1113 newFb = ctx->WinSysDrawBuffer;
1114 newFbread = ctx->WinSysReadBuffer;
1118 ASSERT(newFb != &DummyFramebuffer);
1121 * XXX check if re-binding same buffer and skip some of this code.
1125 _mesa_reference_framebuffer(&ctx->ReadBuffer, newFbread);
1129 /* check if old FB had any texture attachments */
1130 check_end_texture_render(ctx, ctx->DrawBuffer);
1132 /* check if time to delete this framebuffer */
1133 _mesa_reference_framebuffer(&ctx->DrawBuffer, newFb);
1135 if (newFb->Name != 0) {
1136 /* check if newly bound framebuffer has any texture attachments */
1137 check_begin_texture_render(ctx, newFb);
1141 if (ctx->Driver.BindFramebuffer) {
1142 ctx->Driver.BindFramebuffer(ctx, target, newFb, newFbread);
1148 _mesa_DeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers)
1151 GET_CURRENT_CONTEXT(ctx);
1153 ASSERT_OUTSIDE_BEGIN_END(ctx);
1154 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1155 /* The above doesn't fully flush the drivers in the way that a
1156 * glFlush does, but that is required here:
1158 if (ctx->Driver.Flush)
1159 ctx->Driver.Flush(ctx);
1161 for (i = 0; i < n; i++) {
1162 if (framebuffers[i] > 0) {
1163 struct gl_framebuffer *fb;
1164 fb = _mesa_lookup_framebuffer(ctx, framebuffers[i]);
1166 ASSERT(fb == &DummyFramebuffer || fb->Name == framebuffers[i]);
1168 /* check if deleting currently bound framebuffer object */
1169 if (fb == ctx->DrawBuffer) {
1171 ASSERT(fb->RefCount >= 2);
1172 _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
1175 /* remove from hash table immediately, to free the ID */
1176 _mesa_HashRemove(ctx->Shared->FrameBuffers, framebuffers[i]);
1178 if (fb != &DummyFramebuffer) {
1179 /* But the object will not be freed until it's no longer
1180 * bound in any context.
1182 _mesa_unreference_framebuffer(&fb);
1191 _mesa_GenFramebuffersEXT(GLsizei n, GLuint *framebuffers)
1193 GET_CURRENT_CONTEXT(ctx);
1197 ASSERT_OUTSIDE_BEGIN_END(ctx);
1200 _mesa_error(ctx, GL_INVALID_VALUE, "glGenFramebuffersEXT(n)");
1207 first = _mesa_HashFindFreeKeyBlock(ctx->Shared->FrameBuffers, n);
1209 for (i = 0; i < n; i++) {
1210 GLuint name = first + i;
1211 framebuffers[i] = name;
1212 /* insert dummy placeholder into hash table */
1213 _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
1214 _mesa_HashInsert(ctx->Shared->FrameBuffers, name, &DummyFramebuffer);
1215 _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
1222 _mesa_CheckFramebufferStatusEXT(GLenum target)
1224 struct gl_framebuffer *buffer;
1225 GET_CURRENT_CONTEXT(ctx);
1227 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
1230 #if FEATURE_EXT_framebuffer_blit
1231 case GL_DRAW_FRAMEBUFFER_EXT:
1232 if (!ctx->Extensions.EXT_framebuffer_blit) {
1233 _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");
1236 buffer = ctx->DrawBuffer;
1238 case GL_READ_FRAMEBUFFER_EXT:
1239 if (!ctx->Extensions.EXT_framebuffer_blit) {
1240 _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");
1243 buffer = ctx->ReadBuffer;
1246 case GL_FRAMEBUFFER_EXT:
1247 buffer = ctx->DrawBuffer;
1250 _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");
1251 return 0; /* formerly GL_FRAMEBUFFER_STATUS_ERROR_EXT */
1254 if (buffer->Name == 0) {
1255 /* The window system / default framebuffer is always complete */
1256 return GL_FRAMEBUFFER_COMPLETE_EXT;
1259 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1261 _mesa_test_framebuffer_completeness(ctx, buffer);
1262 return buffer->_Status;
1268 * Common code called by glFramebufferTexture1D/2D/3DEXT().
1271 framebuffer_texture(GLcontext *ctx, const char *caller, GLenum target,
1272 GLenum attachment, GLenum textarget, GLuint texture,
1273 GLint level, GLint zoffset)
1275 struct gl_renderbuffer_attachment *att;
1276 struct gl_texture_object *texObj = NULL;
1277 struct gl_framebuffer *fb;
1279 ASSERT_OUTSIDE_BEGIN_END(ctx);
1281 if (target != GL_FRAMEBUFFER_EXT) {
1282 _mesa_error(ctx, GL_INVALID_ENUM,
1283 "glFramebufferTexture%sEXT(target)", caller);
1287 fb = ctx->DrawBuffer;
1290 /* check framebuffer binding */
1291 if (fb->Name == 0) {
1292 _mesa_error(ctx, GL_INVALID_OPERATION,
1293 "glFramebufferTexture%sEXT", caller);
1298 /* The textarget, level, and zoffset parameters are only validated if
1299 * texture is non-zero.
1302 GLboolean err = GL_TRUE;
1304 texObj = _mesa_lookup_texture(ctx, texture);
1305 if (texObj != NULL) {
1306 if (textarget == 0) {
1307 err = (texObj->Target != GL_TEXTURE_3D) &&
1308 (texObj->Target != GL_TEXTURE_1D_ARRAY_EXT) &&
1309 (texObj->Target != GL_TEXTURE_2D_ARRAY_EXT);
1312 err = (texObj->Target == GL_TEXTURE_CUBE_MAP)
1313 ? !IS_CUBE_FACE(textarget)
1314 : (texObj->Target != textarget);
1319 _mesa_error(ctx, GL_INVALID_OPERATION,
1320 "glFramebufferTexture%sEXT(texture target mismatch)",
1325 if (texObj->Target == GL_TEXTURE_3D) {
1326 const GLint maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1327 if (zoffset < 0 || zoffset >= maxSize) {
1328 _mesa_error(ctx, GL_INVALID_VALUE,
1329 "glFramebufferTexture%sEXT(zoffset)", caller);
1333 else if ((texObj->Target == GL_TEXTURE_1D_ARRAY_EXT) ||
1334 (texObj->Target == GL_TEXTURE_2D_ARRAY_EXT)) {
1335 if (zoffset < 0 || zoffset >= ctx->Const.MaxArrayTextureLayers) {
1336 _mesa_error(ctx, GL_INVALID_VALUE,
1337 "glFramebufferTexture%sEXT(layer)", caller);
1344 (level >= _mesa_max_texture_levels(ctx, texObj->Target))) {
1345 _mesa_error(ctx, GL_INVALID_VALUE,
1346 "glFramebufferTexture%sEXT(level)", caller);
1351 att = _mesa_get_attachment(ctx, fb, attachment);
1353 _mesa_error(ctx, GL_INVALID_ENUM,
1354 "glFramebufferTexture%sEXT(attachment)", caller);
1358 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1359 /* The above doesn't fully flush the drivers in the way that a
1360 * glFlush does, but that is required here:
1362 if (ctx->Driver.Flush)
1363 ctx->Driver.Flush(ctx);
1365 _glthread_LOCK_MUTEX(fb->Mutex);
1367 _mesa_set_texture_attachment(ctx, fb, att, texObj, textarget,
1371 _mesa_remove_attachment(ctx, att);
1373 _glthread_UNLOCK_MUTEX(fb->Mutex);
1379 _mesa_FramebufferTexture1DEXT(GLenum target, GLenum attachment,
1380 GLenum textarget, GLuint texture, GLint level)
1382 GET_CURRENT_CONTEXT(ctx);
1384 if ((texture != 0) && (textarget != GL_TEXTURE_1D)) {
1385 _mesa_error(ctx, GL_INVALID_ENUM,
1386 "glFramebufferTexture1DEXT(textarget)");
1390 framebuffer_texture(ctx, "1D", target, attachment, textarget, texture,
1396 _mesa_FramebufferTexture2DEXT(GLenum target, GLenum attachment,
1397 GLenum textarget, GLuint texture, GLint level)
1399 GET_CURRENT_CONTEXT(ctx);
1401 if ((texture != 0) &&
1402 (textarget != GL_TEXTURE_2D) &&
1403 (textarget != GL_TEXTURE_RECTANGLE_ARB) &&
1404 (!IS_CUBE_FACE(textarget))) {
1405 _mesa_error(ctx, GL_INVALID_OPERATION,
1406 "glFramebufferTexture2DEXT(textarget)");
1410 framebuffer_texture(ctx, "2D", target, attachment, textarget, texture,
1416 _mesa_FramebufferTexture3DEXT(GLenum target, GLenum attachment,
1417 GLenum textarget, GLuint texture,
1418 GLint level, GLint zoffset)
1420 GET_CURRENT_CONTEXT(ctx);
1422 if ((texture != 0) && (textarget != GL_TEXTURE_3D)) {
1423 _mesa_error(ctx, GL_INVALID_ENUM,
1424 "glFramebufferTexture3DEXT(textarget)");
1428 framebuffer_texture(ctx, "3D", target, attachment, textarget, texture,
1434 _mesa_FramebufferTextureLayerEXT(GLenum target, GLenum attachment,
1435 GLuint texture, GLint level, GLint layer)
1437 GET_CURRENT_CONTEXT(ctx);
1439 framebuffer_texture(ctx, "Layer", target, attachment, 0, texture,
1445 _mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment,
1446 GLenum renderbufferTarget,
1447 GLuint renderbuffer)
1449 struct gl_renderbuffer_attachment *att;
1450 struct gl_framebuffer *fb;
1451 struct gl_renderbuffer *rb;
1452 GET_CURRENT_CONTEXT(ctx);
1454 ASSERT_OUTSIDE_BEGIN_END(ctx);
1457 #if FEATURE_EXT_framebuffer_blit
1458 case GL_DRAW_FRAMEBUFFER_EXT:
1459 if (!ctx->Extensions.EXT_framebuffer_blit) {
1460 _mesa_error(ctx, GL_INVALID_ENUM,
1461 "glFramebufferRenderbufferEXT(target)");
1464 fb = ctx->DrawBuffer;
1466 case GL_READ_FRAMEBUFFER_EXT:
1467 if (!ctx->Extensions.EXT_framebuffer_blit) {
1468 _mesa_error(ctx, GL_INVALID_ENUM,
1469 "glFramebufferRenderbufferEXT(target)");
1472 fb = ctx->ReadBuffer;
1475 case GL_FRAMEBUFFER_EXT:
1476 fb = ctx->DrawBuffer;
1479 _mesa_error(ctx, GL_INVALID_ENUM,
1480 "glFramebufferRenderbufferEXT(target)");
1484 if (renderbufferTarget != GL_RENDERBUFFER_EXT) {
1485 _mesa_error(ctx, GL_INVALID_ENUM,
1486 "glFramebufferRenderbufferEXT(renderbufferTarget)");
1490 if (fb->Name == 0) {
1491 /* Can't attach new renderbuffers to a window system framebuffer */
1492 _mesa_error(ctx, GL_INVALID_OPERATION, "glFramebufferRenderbufferEXT");
1496 att = _mesa_get_attachment(ctx, fb, attachment);
1498 _mesa_error(ctx, GL_INVALID_ENUM,
1499 "glFramebufferRenderbufferEXT(attachment)");
1504 rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
1506 _mesa_error(ctx, GL_INVALID_OPERATION,
1507 "glFramebufferRenderbufferEXT(renderbuffer)");
1512 /* remove renderbuffer attachment */
1516 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1517 /* The above doesn't fully flush the drivers in the way that a
1518 * glFlush does, but that is required here:
1520 if (ctx->Driver.Flush)
1521 ctx->Driver.Flush(ctx);
1523 assert(ctx->Driver.FramebufferRenderbuffer);
1524 ctx->Driver.FramebufferRenderbuffer(ctx, fb, attachment, rb);
1526 /* Some subsequent GL commands may depend on the framebuffer's visual
1527 * after the binding is updated. Update visual info now.
1529 _mesa_update_framebuffer_visual(fb);
1534 _mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
1535 GLenum pname, GLint *params)
1537 const struct gl_renderbuffer_attachment *att;
1538 struct gl_framebuffer *buffer;
1539 GET_CURRENT_CONTEXT(ctx);
1541 ASSERT_OUTSIDE_BEGIN_END(ctx);
1544 #if FEATURE_EXT_framebuffer_blit
1545 case GL_DRAW_FRAMEBUFFER_EXT:
1546 if (!ctx->Extensions.EXT_framebuffer_blit) {
1547 _mesa_error(ctx, GL_INVALID_ENUM,
1548 "glGetFramebufferAttachmentParameterivEXT(target)");
1551 buffer = ctx->DrawBuffer;
1553 case GL_READ_FRAMEBUFFER_EXT:
1554 if (!ctx->Extensions.EXT_framebuffer_blit) {
1555 _mesa_error(ctx, GL_INVALID_ENUM,
1556 "glGetFramebufferAttachmentParameterivEXT(target)");
1559 buffer = ctx->ReadBuffer;
1562 case GL_FRAMEBUFFER_EXT:
1563 buffer = ctx->DrawBuffer;
1566 _mesa_error(ctx, GL_INVALID_ENUM,
1567 "glGetFramebufferAttachmentParameterivEXT(target)");
1571 if (buffer->Name == 0) {
1572 _mesa_error(ctx, GL_INVALID_OPERATION,
1573 "glGetFramebufferAttachmentParameterivEXT");
1577 att = _mesa_get_attachment(ctx, buffer, attachment);
1579 _mesa_error(ctx, GL_INVALID_ENUM,
1580 "glGetFramebufferAttachmentParameterivEXT(attachment)");
1584 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1585 /* The above doesn't fully flush the drivers in the way that a
1586 * glFlush does, but that is required here:
1588 if (ctx->Driver.Flush)
1589 ctx->Driver.Flush(ctx);
1592 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT:
1593 *params = att->Type;
1595 case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT:
1596 if (att->Type == GL_RENDERBUFFER_EXT) {
1597 *params = att->Renderbuffer->Name;
1599 else if (att->Type == GL_TEXTURE) {
1600 *params = att->Texture->Name;
1603 _mesa_error(ctx, GL_INVALID_ENUM,
1604 "glGetFramebufferAttachmentParameterivEXT(pname)");
1607 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT:
1608 if (att->Type == GL_TEXTURE) {
1609 *params = att->TextureLevel;
1612 _mesa_error(ctx, GL_INVALID_ENUM,
1613 "glGetFramebufferAttachmentParameterivEXT(pname)");
1616 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT:
1617 if (att->Type == GL_TEXTURE) {
1618 if (att->Texture && att->Texture->Target == GL_TEXTURE_CUBE_MAP) {
1619 *params = GL_TEXTURE_CUBE_MAP_POSITIVE_X + att->CubeMapFace;
1626 _mesa_error(ctx, GL_INVALID_ENUM,
1627 "glGetFramebufferAttachmentParameterivEXT(pname)");
1630 case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT:
1631 if (att->Type == GL_TEXTURE) {
1632 if (att->Texture && att->Texture->Target == GL_TEXTURE_3D) {
1633 *params = att->Zoffset;
1640 _mesa_error(ctx, GL_INVALID_ENUM,
1641 "glGetFramebufferAttachmentParameterivEXT(pname)");
1644 case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING:
1645 if (!ctx->Extensions.ARB_framebuffer_object) {
1646 _mesa_error(ctx, GL_INVALID_ENUM,
1647 "glGetFramebufferAttachmentParameterivEXT(pname)");
1650 *params = att->Renderbuffer->ColorEncoding;
1653 case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE:
1654 if (!ctx->Extensions.ARB_framebuffer_object) {
1655 _mesa_error(ctx, GL_INVALID_ENUM,
1656 "glGetFramebufferAttachmentParameterivEXT(pname)");
1660 *params = att->Renderbuffer->ComponentType;
1663 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
1664 if (!ctx->Extensions.ARB_framebuffer_object) {
1665 _mesa_error(ctx, GL_INVALID_ENUM,
1666 "glGetFramebufferAttachmentParameterivEXT(pname)");
1669 *params = att->Renderbuffer->RedBits;
1672 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
1673 if (!ctx->Extensions.ARB_framebuffer_object) {
1674 _mesa_error(ctx, GL_INVALID_ENUM,
1675 "glGetFramebufferAttachmentParameterivEXT(pname)");
1678 *params = att->Renderbuffer->GreenBits;
1681 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
1682 if (!ctx->Extensions.ARB_framebuffer_object) {
1683 _mesa_error(ctx, GL_INVALID_ENUM,
1684 "glGetFramebufferAttachmentParameterivEXT(pname)");
1687 *params = att->Renderbuffer->BlueBits;
1690 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
1691 if (!ctx->Extensions.ARB_framebuffer_object) {
1692 _mesa_error(ctx, GL_INVALID_ENUM,
1693 "glGetFramebufferAttachmentParameterivEXT(pname)");
1696 *params = att->Renderbuffer->AlphaBits;
1699 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
1700 if (!ctx->Extensions.ARB_framebuffer_object) {
1701 _mesa_error(ctx, GL_INVALID_ENUM,
1702 "glGetFramebufferAttachmentParameterivEXT(pname)");
1705 *params = att->Renderbuffer->DepthBits;
1708 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
1709 if (!ctx->Extensions.ARB_framebuffer_object) {
1710 _mesa_error(ctx, GL_INVALID_ENUM,
1711 "glGetFramebufferAttachmentParameterivEXT(pname)");
1714 *params = att->Renderbuffer->StencilBits;
1718 _mesa_error(ctx, GL_INVALID_ENUM,
1719 "glGetFramebufferAttachmentParameterivEXT(pname)");
1726 _mesa_GenerateMipmapEXT(GLenum target)
1728 struct gl_texture_unit *texUnit;
1729 struct gl_texture_object *texObj;
1730 GET_CURRENT_CONTEXT(ctx);
1732 ASSERT_OUTSIDE_BEGIN_END(ctx);
1733 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1739 case GL_TEXTURE_CUBE_MAP:
1740 /* OK, legal value */
1743 _mesa_error(ctx, GL_INVALID_ENUM, "glGenerateMipmapEXT(target)");
1747 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1748 texObj = _mesa_select_tex_object(ctx, texUnit, target);
1750 _mesa_lock_texture(ctx, texObj);
1751 if (target == GL_TEXTURE_CUBE_MAP) {
1754 for (face = 0; face < 6; face++)
1755 ctx->Driver.GenerateMipmap(ctx,
1756 GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + face,
1759 ctx->Driver.GenerateMipmap(ctx, target, texObj);
1761 _mesa_unlock_texture(ctx, texObj);
1765 #if FEATURE_EXT_framebuffer_blit
1767 _mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
1768 GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
1769 GLbitfield mask, GLenum filter)
1771 GET_CURRENT_CONTEXT(ctx);
1773 ASSERT_OUTSIDE_BEGIN_END(ctx);
1774 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
1776 if (ctx->NewState) {
1777 _mesa_update_state(ctx);
1780 if (!ctx->ReadBuffer) {
1784 /* check for complete framebuffers */
1785 if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT ||
1786 ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
1787 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
1788 "glBlitFramebufferEXT(incomplete draw/read buffers)");
1792 if (filter != GL_NEAREST && filter != GL_LINEAR) {
1793 _mesa_error(ctx, GL_INVALID_ENUM, "glBlitFramebufferEXT(filter)");
1797 if (mask & ~(GL_COLOR_BUFFER_BIT |
1798 GL_DEPTH_BUFFER_BIT |
1799 GL_STENCIL_BUFFER_BIT)) {
1800 _mesa_error( ctx, GL_INVALID_VALUE, "glBlitFramebufferEXT(mask)");
1804 /* depth/stencil must be blitted with nearest filtering */
1805 if ((mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT))
1806 && filter != GL_NEAREST) {
1807 _mesa_error(ctx, GL_INVALID_OPERATION,
1808 "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter");
1812 if (mask & GL_STENCIL_BUFFER_BIT) {
1813 struct gl_renderbuffer *readRb = ctx->ReadBuffer->_StencilBuffer;
1814 struct gl_renderbuffer *drawRb = ctx->DrawBuffer->_StencilBuffer;
1815 if (readRb->StencilBits != drawRb->StencilBits) {
1816 _mesa_error(ctx, GL_INVALID_OPERATION,
1817 "glBlitFramebufferEXT(stencil buffer size mismatch");
1822 if (mask & GL_DEPTH_BUFFER_BIT) {
1823 struct gl_renderbuffer *readRb = ctx->ReadBuffer->_DepthBuffer;
1824 struct gl_renderbuffer *drawRb = ctx->DrawBuffer->_DepthBuffer;
1825 if (readRb->DepthBits != drawRb->DepthBits) {
1826 _mesa_error(ctx, GL_INVALID_OPERATION,
1827 "glBlitFramebufferEXT(depth buffer size mismatch");
1832 if (!ctx->Extensions.EXT_framebuffer_blit) {
1833 _mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebufferEXT");
1837 ASSERT(ctx->Driver.BlitFramebuffer);
1838 ctx->Driver.BlitFramebuffer(ctx,
1839 srcX0, srcY0, srcX1, srcY1,
1840 dstX0, dstY0, dstX1, dstY1,
1843 #endif /* FEATURE_EXT_framebuffer_blit */