| /* |
| * GStreamer |
| * Copyright (C) 2014 Matthew Waters <matthew@centricular.com> |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public |
| * License along with this library; if not, write to the |
| * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include "gl.h" |
| #include "gstglsyncmeta.h" |
| |
| #define GST_CAT_DEFAULT gst_gl_sync_meta_debug |
| GST_DEBUG_CATEGORY (GST_CAT_DEFAULT); |
| |
| #ifndef GL_SYNC_GPU_COMMANDS_COMPLETE |
| #define GL_SYNC_GPU_COMMANDS_COMPLETE 0x9117 |
| #endif |
| #ifndef GL_SYNC_FLUSH_COMMANDS_BIT |
| #define GL_SYNC_FLUSH_COMMANDS_BIT 0x00000001 |
| #endif |
| #ifndef GL_TIMEOUT_EXPIRED |
| #define GL_TIMEOUT_EXPIRED 0x911B |
| #endif |
| |
| GstGLSyncMeta * |
| gst_buffer_add_gl_sync_meta (GstGLContext * context, GstBuffer * buffer) |
| { |
| GstGLSyncMeta *meta; |
| |
| g_return_val_if_fail (GST_GL_IS_CONTEXT (context), NULL); |
| |
| meta = |
| (GstGLSyncMeta *) gst_buffer_add_meta ((buffer), GST_GL_SYNC_META_INFO, |
| NULL); |
| |
| if (!meta) |
| return NULL; |
| |
| meta->context = gst_object_ref (context); |
| meta->glsync = NULL; |
| |
| return meta; |
| } |
| |
| static void |
| _set_sync_point (GstGLContext * context, GstGLSyncMeta * sync_meta) |
| { |
| const GstGLFuncs *gl = context->gl_vtable; |
| |
| if (gl->FenceSync) { |
| if (sync_meta->glsync) |
| gl->DeleteSync (sync_meta->glsync); |
| sync_meta->glsync = gl->FenceSync (GL_SYNC_GPU_COMMANDS_COMPLETE, 0); |
| GST_LOG ("setting sync object %p", sync_meta->glsync); |
| } else { |
| gl->Flush (); |
| } |
| } |
| |
| void |
| gst_gl_sync_meta_set_sync_point (GstGLSyncMeta * sync_meta, |
| GstGLContext * context) |
| { |
| gst_gl_context_thread_add (context, |
| (GstGLContextThreadFunc) _set_sync_point, sync_meta); |
| } |
| |
| static void |
| _wait (GstGLContext * context, GstGLSyncMeta * sync_meta) |
| { |
| const GstGLFuncs *gl = context->gl_vtable; |
| GLenum res; |
| |
| if (gl->ClientWaitSync) { |
| do { |
| GST_LOG ("waiting on sync object %p", sync_meta->glsync); |
| res = |
| gl->ClientWaitSync (sync_meta->glsync, GL_SYNC_FLUSH_COMMANDS_BIT, |
| 1000000000 /* 1s */ ); |
| } while (res == GL_TIMEOUT_EXPIRED); |
| } |
| } |
| |
| void |
| gst_gl_sync_meta_wait (GstGLSyncMeta * sync_meta, GstGLContext * context) |
| { |
| if (sync_meta->context == context) |
| return; |
| |
| if (sync_meta->glsync) { |
| gst_gl_context_thread_add (context, |
| (GstGLContextThreadFunc) _wait, sync_meta); |
| } |
| } |
| |
| static gboolean |
| _gst_gl_sync_meta_transform (GstBuffer * dest, GstMeta * meta, |
| GstBuffer * buffer, GQuark type, gpointer data) |
| { |
| GstGLSyncMeta *dmeta, *smeta; |
| |
| smeta = (GstGLSyncMeta *) meta; |
| |
| if (GST_META_TRANSFORM_IS_COPY (type)) { |
| GstMetaTransformCopy *copy = data; |
| |
| if (!copy->region) { |
| /* only copy if the complete data is copied as well */ |
| dmeta = gst_buffer_add_gl_sync_meta (smeta->context, dest); |
| |
| if (!dmeta) |
| return FALSE; |
| |
| GST_DEBUG ("copy gl sync metadata"); |
| |
| dmeta->glsync = smeta->glsync; |
| } |
| } |
| return TRUE; |
| } |
| |
| static void |
| _free_gl_sync_meta (GstGLContext * context, GstGLSyncMeta * sync_meta) |
| { |
| const GstGLFuncs *gl = context->gl_vtable; |
| |
| if (sync_meta->glsync) |
| gl->DeleteSync (sync_meta->glsync); |
| sync_meta->glsync = NULL; |
| } |
| |
| static void |
| _gst_gl_sync_meta_free (GstGLSyncMeta * sync_meta, GstBuffer * buffer) |
| { |
| if (sync_meta->glsync) { |
| gst_gl_context_thread_add (sync_meta->context, |
| (GstGLContextThreadFunc) _free_gl_sync_meta, sync_meta); |
| } |
| gst_object_unref (sync_meta->context); |
| } |
| |
| static gboolean |
| _gst_gl_sync_meta_init (GstGLSyncMeta * sync_meta, gpointer params, |
| GstBuffer * buffer) |
| { |
| static volatile gsize _init; |
| |
| if (g_once_init_enter (&_init)) { |
| GST_DEBUG_CATEGORY_INIT (gst_gl_sync_meta_debug, "glsyncmeta", 0, |
| "glsyncmeta"); |
| g_once_init_leave (&_init, 1); |
| } |
| |
| sync_meta->context = NULL; |
| sync_meta->glsync = NULL; |
| |
| return TRUE; |
| } |
| |
| GType |
| gst_gl_sync_meta_api_get_type (void) |
| { |
| static volatile GType type = 0; |
| static const gchar *tags[] = { NULL }; |
| |
| if (g_once_init_enter (&type)) { |
| GType _type = gst_meta_api_type_register ("GstGLSyncMetaAPI", tags); |
| g_once_init_leave (&type, _type); |
| } |
| |
| return type; |
| } |
| |
| const GstMetaInfo * |
| gst_gl_sync_meta_get_info (void) |
| { |
| static const GstMetaInfo *meta_info = NULL; |
| |
| if (g_once_init_enter (&meta_info)) { |
| const GstMetaInfo *meta = |
| gst_meta_register (GST_GL_SYNC_META_API_TYPE, "GstGLSyncMeta", |
| sizeof (GstGLSyncMeta), (GstMetaInitFunction) _gst_gl_sync_meta_init, |
| (GstMetaFreeFunction) _gst_gl_sync_meta_free, |
| _gst_gl_sync_meta_transform); |
| g_once_init_leave (&meta_info, meta); |
| } |
| |
| return meta_info; |
| } |