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f4bd4434c4
CPU waits are more expensive and are only required if the CPU is ever going to access the data. GPU waits perform inter-context synchronisation and are cheaper as they don't require CPU intervention.
66 lines
2.7 KiB
C
66 lines
2.7 KiB
C
/*
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* GStreamer
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* Copyright (C) 2014 Matthew Waters <matthew@centricular.com>
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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 Library 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_GL_SYNC_META_H__
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#define __GST_GL_SYNC_META_H__
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#include <gst/gl/gstgl_fwd.h>
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G_BEGIN_DECLS
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#define GST_GL_SYNC_META_API_TYPE (gst_gl_sync_meta_api_get_type())
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#define GST_GL_SYNC_META_INFO (gst_gl_sync_meta_get_info())
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typedef struct _GstGLSyncMeta GstGLSyncMeta;
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#define GST_BUFFER_POOL_OPTION_GL_SYNC_META "GstBufferPoolOptionGLSyncMeta"
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struct _GstGLSyncMeta {
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GstMeta parent;
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GstGLContext *context;
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gpointer data;
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void (*set_sync) (GstGLSyncMeta * sync, GstGLContext * context);
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void (*set_sync_gl) (GstGLSyncMeta * sync, GstGLContext * context);
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void (*wait) (GstGLSyncMeta * sync, GstGLContext * context);
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void (*wait_gl) (GstGLSyncMeta * sync, GstGLContext * context);
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void (*wait_cpu) (GstGLSyncMeta * sync, GstGLContext * context);
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void (*wait_cpu_gl) (GstGLSyncMeta * sync, GstGLContext * context);
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void (*copy) (GstGLSyncMeta * src, GstBuffer * sbuffer, GstGLSyncMeta * dest, GstBuffer * dbuffer);
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void (*free) (GstGLSyncMeta * sync, GstGLContext * context);
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void (*free_gl) (GstGLSyncMeta * sync, GstGLContext * context);
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};
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GType gst_gl_sync_meta_api_get_type (void);
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const GstMetaInfo * gst_gl_sync_meta_get_info (void);
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#define gst_buffer_get_gl_sync_meta(b) ((GstGLSyncMeta*)gst_buffer_get_meta((b),GST_GL_SYNC_META_API_TYPE))
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GstGLSyncMeta * gst_buffer_add_gl_sync_meta (GstGLContext * context, GstBuffer *buffer);
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GstGLSyncMeta * gst_buffer_add_gl_sync_meta_full (GstGLContext * context, GstBuffer * buffer,
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gpointer data);
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void gst_gl_sync_meta_set_sync_point (GstGLSyncMeta * sync, GstGLContext * context);
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void gst_gl_sync_meta_wait (GstGLSyncMeta * sync, GstGLContext * context);
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void gst_gl_sync_meta_wait_cpu (GstGLSyncMeta * sync, GstGLContext * context);
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G_END_DECLS
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#endif /* __GST_GL_SYNC_META_H__ */
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