ea7d3b8476
cogl_framebuffer_add_fence creates a synchronisation fence, which will invoke a user-specified callback when the GPU has finished executing all commands provided to it up to that point in time. Support is currently provided for GL 3.x's GL_ARB_sync extension, and EGL's EGL_KHR_fence_sync (when used with OpenGL ES). Signed-off-by: Daniel Stone <daniel@fooishbar.org> Reviewed-by: Neil Roberts <neil@linux.intel.com> Reviewed-by: Robert Bragg <robert@linux.intel.com> https://bugzilla.gnome.org/show_bug.cgi?id=691752 (cherry picked from commit e6d37470da9294adc1554c0a8c91aa2af560ed9f)
115 lines
3.7 KiB
C
115 lines
3.7 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2007,2008,2009 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#ifndef __COGL_JOURNAL_PRIVATE_H
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#define __COGL_JOURNAL_PRIVATE_H
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#include "cogl-texture.h"
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#include "cogl-object-private.h"
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#include "cogl-clip-stack.h"
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#include "cogl-fence-private.h"
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#define COGL_JOURNAL_VBO_POOL_SIZE 8
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typedef struct _CoglJournal
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{
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CoglObject _parent;
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/* A pointer the framebuffer that is using this journal. This is
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only valid when the journal is not empty. It *does* take a
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reference on the framebuffer. Although this creates a circular
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reference, the framebuffer has special code to handle the case
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where the journal is the only thing holding a reference and it
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will cause the journal to flush */
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CoglFramebuffer *framebuffer;
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GArray *entries;
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GArray *vertices;
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size_t needed_vbo_len;
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/* A pool of attribute buffers is used so that we can avoid repeatedly
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reallocating buffers. Only one of these buffers at a time will be
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used by Cogl but we keep more than one alive anyway in case the
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GL driver is internally using the buffer and it would have to
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allocate a new one when we start writing to it */
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CoglAttributeBuffer *vbo_pool[COGL_JOURNAL_VBO_POOL_SIZE];
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/* The next vbo to use from the pool. We just cycle through them in
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order */
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unsigned int next_vbo_in_pool;
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int fast_read_pixel_count;
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CoglFenceList pending_fences;
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} CoglJournal;
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/* To improve batching of geometry when submitting vertices to OpenGL we
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* log the texture rectangles we want to draw to a journal, so when we
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* later flush the journal we aim to batch data, and gl draw calls. */
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typedef struct _CoglJournalEntry
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{
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CoglPipeline *pipeline;
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CoglMatrixEntry *modelview_entry;
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CoglClipStack *clip_stack;
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/* Offset into ctx->logged_vertices */
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size_t array_offset;
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int n_layers;
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} CoglJournalEntry;
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CoglJournal *
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_cogl_journal_new (CoglFramebuffer *framebuffer);
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void
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_cogl_journal_log_quad (CoglJournal *journal,
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const float *position,
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CoglPipeline *pipeline,
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int n_layers,
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CoglTexture *layer0_override_texture,
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const float *tex_coords,
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unsigned int tex_coords_len);
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void
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_cogl_journal_flush (CoglJournal *journal);
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void
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_cogl_journal_discard (CoglJournal *journal);
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CoglBool
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_cogl_journal_all_entries_within_bounds (CoglJournal *journal,
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float clip_x0,
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float clip_y0,
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float clip_x1,
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float clip_y1);
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CoglBool
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_cogl_journal_try_read_pixel (CoglJournal *journal,
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int x,
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int y,
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CoglBitmap *bitmap,
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CoglBool *found_intersection);
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CoglBool
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_cogl_is_journal (void *object);
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#endif /* __COGL_JOURNAL_PRIVATE_H */
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