631056bf49
There is no need to make CoglJournal a CoglObject, nor any kind of object for that matter, since it doesn't require refcounting at all. CoglJournal is entirely private to, and managed by, CoglFramebuffer, and it only needs to create and destroy it. Make CoglJournal a free-form struct, and adjust CoglFramebuffer to call _cogl_journal_free() instead of cogl_object_unref(). Related: https://gitlab.gnome.org/GNOME/mutter/-/issues/2087 Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2355>
125 lines
4.2 KiB
C
125 lines
4.2 KiB
C
/*
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* Cogl
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*
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* A Low Level GPU Graphics and Utilities API
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*
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* Copyright (C) 2007,2008,2009 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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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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/* 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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CoglList 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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float viewport[4];
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gboolean dither_enabled;
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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_free (CoglJournal *journal);
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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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gboolean
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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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gboolean
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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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gboolean *found_intersection);
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gboolean
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_cogl_is_journal (void *object);
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#endif /* __COGL_JOURNAL_PRIVATE_H */
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