Author: Carlos Lopez <[email protected]>
Date: Sun Feb 17 12:24:52 2013 +0100
Initial framework for the Cairo async renderer.
---
synfig-studio/src/gui/asyncrenderer.cpp | 119 +++++++++++++++++++++++++++++++
synfig-studio/src/gui/asyncrenderer.h | 1 +
2 files changed, 120 insertions(+), 0 deletions(-)
diff --git a/synfig-studio/src/gui/asyncrenderer.cpp
b/synfig-studio/src/gui/asyncrenderer.cpp
index 4deb2fe..0c5733a 100644
--- a/synfig-studio/src/gui/asyncrenderer.cpp
+++ b/synfig-studio/src/gui/asyncrenderer.cpp
@@ -372,6 +372,125 @@ public:
}
};
+class AsyncTarget_Cairo : public synfig::Target_Cairo
+{
+public:
+ etl::handle<synfig::Target_Cairo> warm_target;
+
+ cairo_surface_t* surface;
+ ProgressCallback *callback;
+
+ Glib::Mutex mutex;
+
+#ifndef GLIB_DISPATCHER_BROKEN
+ Glib::Dispatcher frame_ready_signal;
+#endif
+ Glib::Cond cond_frame_queue_empty;
+ bool alive_flag;
+ bool ready_next;
+ sigc::connection ready_connection;
+
+
+public:
+ AsyncTarget_Cairo(etl::handle<synfig::Target_Cairo> warm_target):
+ warm_target(warm_target)
+ {
+ set_avoid_time_sync(warm_target->get_avoid_time_sync());
+ set_canvas(warm_target->get_canvas());
+ set_quality(warm_target->get_quality());
+ set_remove_alpha(warm_target->get_remove_alpha());
+ set_rend_desc(&warm_target->rend_desc());
+ alive_flag=true;
+#ifndef GLIB_DISPATCHER_BROKEN
+
ready_connection=frame_ready_signal.connect(sigc::mem_fun(*this,&AsyncTarget_Cairo::frame_ready));
+#endif
+ }
+
+ ~AsyncTarget_Cairo()
+ {
+ ready_connection.disconnect();
+ }
+
+ virtual int next_frame(Time& time)
+ {
+ Glib::Mutex::Lock lock(mutex);
+ if(!alive_flag)
+ return 0;
+ return warm_target->next_frame(time);
+
+ }
+
+ void set_dead()
+ {
+ Glib::Mutex::Lock lock(mutex);
+ alive_flag=false;
+ }
+
+ virtual bool put_surface(cairo_surface_t* s, ProgressCallback *cb)
+ {
+ {
+ Glib::Mutex::Lock lock(mutex);
+ surface=s;
+ callback=cb;
+ if(!alive_flag)
+ return false;
+ ready_next=false;
+
+#ifdef GLIB_DISPATCHER_BROKEN
+ ready_connection=Glib::signal_timeout().connect(
+
sigc::bind_return(sigc::mem_fun(*this,&AsyncTarget_Cairo::frame_ready),false)
+
,0
+
);
+#else
+ frame_ready_signal();
+#endif
+ }
+
+#ifdef SINGLE_THREADED
+ if (single_threaded())
+ signal_progress()();
+ else
+#endif
+ {
+
+ Glib::TimeVal end_time;
+
+ end_time.assign_current_time();
+ end_time.add_microseconds(BOREDOM_TIMEOUT);
+
+ while(alive_flag && !ready_next)
+ {
+ Glib::Mutex::Lock lock(mutex);
+ if(cond_frame_queue_empty.timed_wait(mutex,
end_time))
+ break;
+ }
+ }
+ return true;
+ }
+
+ void frame_ready()
+ {
+ Glib::Mutex::Lock lock(mutex);
+ if(alive_flag)
+ alive_flag=warm_target->put_surface(surface, callback);
+#ifdef SINGLE_THREADED
+ if (!single_threaded())
+#endif
+ cond_frame_queue_empty.signal();
+ ready_next=true;
+ }
+
+ virtual bool obtain_surface(cairo_surface_t*& s)
+ {
+ Glib::Mutex::Lock lock(mutex);
+ if(!alive_flag)
+ return false;
+ return warm_target->obtain_surface(s);
+ }
+
+};
+
+
/* === G L O B A L S ======================================================= */
/* === P R O C E D U R E S ================================================= */
diff --git a/synfig-studio/src/gui/asyncrenderer.h
b/synfig-studio/src/gui/asyncrenderer.h
index 15b4f85..a7bf5b3 100644
--- a/synfig-studio/src/gui/asyncrenderer.h
+++ b/synfig-studio/src/gui/asyncrenderer.h
@@ -35,6 +35,7 @@
#include <synfig/target_scanline.h>
#include <synfig/target_tile.h>
+#include <synfig/target_cairo.h>
#include <synfig/surface.h>
#include <glibmm/main.h>
#include <ETL/ref_count>
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