Copy of aRts for Trinity modifications

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/dependencies/arts@1070145 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 172 insertions, 0 deletions

diff --git a/soundserver/wavplayobject_impl.cc b/soundserver/wavplayobject_impl.cc
new file mode 100644
index 0000000..1a5fb82
--- /dev/null
+++ b/soundserver/wavplayobject_impl.cc
@@ -0,0 +1,172 @@
+    /*
+
+    Copyright (C) 2000 Stefan Westerfeld
+                       stefan@space.twc.de
+
+    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; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+    Boston, MA 02111-1307, USA.
+
+    */
+
+#include "config.h"
+
+#ifdef HAVE_LIBAUDIOFILE
+
+#include "soundserver.h"
+#include "cachedwav.h"
+#include "stdsynthmodule.h"
+#include "convert.h"
+#include "debug.h"
+#include <math.h>
+
+using namespace std;
+using namespace Arts;
+
+class WavPlayObject_impl :public WavPlayObject_skel, public StdSynthModule {
+protected:
+	CachedWav *wav;
+	double flpos;
+	poState _state;
+
+	int sampleCount()
+	{
+		if(!wav) return 0;
+		return wav->bufferSize / wav->channelCount / (wav->sampleWidth/8);
+	}
+public:
+	/*
+	 * construction, destruction
+	 */
+	WavPlayObject_impl() :wav(0), flpos(0.0), _state(posIdle)
+	{
+		arts_debug("WavPlayObject_impl");
+	}
+
+	virtual ~WavPlayObject_impl()
+	{
+		arts_debug("~WavPlayObject_impl");
+		if(wav) wav->decRef();
+	}
+
+	/*
+	 * KMedia2 private interface
+	 */
+
+	bool loadMedia(const string &filename) {
+		arts_debug("Wav: loadMedia %s", filename.c_str());
+		wav = CachedWav::load(Cache::the(), filename);
+		return (wav != 0);
+	}
+
+	/*
+	 * KMedia2 interface
+	 */
+	string description() {
+		return "no description (see "__FILE__")";
+	}
+
+	poTime currentTime() {
+		if(!wav) return poTime(0,0,0,"samples");
+
+		float timesec = flpos / (float)wav->samplingRate;
+		float timems = (timesec - floor(timesec)) * 1000.0;
+
+		return poTime( int( timesec ), int( timems ), (int)flpos, "samples" );
+	}
+
+	poTime overallTime() {
+		float timesec = (float)sampleCount() / (float)wav->samplingRate;
+		float timems = (timesec - floor(timesec)) * 1000.0;
+
+		return poTime( int( timesec ), int( timems ), sampleCount(), "samples" );
+	}
+
+	poCapabilities capabilities() {
+  		return static_cast<poCapabilities>(capPause+capSeek);
+	}
+
+	string mediaName() {
+		return wav ? wav->mediaName() : "";
+	}
+
+	poState state() {
+		return _state;
+	}
+
+	void play() {
+		_state = posPlaying;
+	}
+
+	void halt() {
+		_state = posIdle;
+		flpos = 0.0;
+	}
+
+	void seek(const class poTime &newTime) {
+		if(!wav) return;
+
+		float fnewsamples = -1;
+		if(newTime.seconds != -1 && newTime.ms != -1)
+		{
+			float flnewtime = (float)newTime.seconds+((float)newTime.ms/1000.0);
+			fnewsamples = flnewtime * (float)wav->samplingRate;
+		}
+		else if(newTime.custom >= 0 && newTime.customUnit == "samples")
+		{
+			fnewsamples = newTime.custom;
+		}
+
+		if(fnewsamples > (float)sampleCount())
+			fnewsamples = (float)sampleCount();
+
+		if(fnewsamples >= 0) flpos = fnewsamples;
+	}
+
+	void pause() {
+		arts_debug("pause");
+		_state = posPaused;
+	}
+
+	void calculateBlock(unsigned long samples) {
+		unsigned long haveSamples = 0;
+
+		if(wav && _state == posPlaying)
+		{
+			double speed = wav->samplingRate / samplingRateFloat;
+
+			haveSamples = uni_convert_stereo_2float(samples, wav->buffer,
+		   		wav->bufferSize,wav->channelCount,wav->sampleWidth,
+		   		left,right,speed,flpos);
+
+			flpos += (double)haveSamples * speed;
+		}
+
+		if(haveSamples != samples)
+		{
+			unsigned long i;
+
+			for(i=haveSamples;i<samples;i++)
+				left[i] = right[i] = 0.0;
+
+			if(_state == posPlaying) {
+				_state = posIdle;
+				flpos = 0.0;
+			}
+		}
+	}
+};
+
+REGISTER_IMPLEMENTATION(WavPlayObject_impl);
+#endif