delete CustomProcInputStream and add getFreeSpace for appendable audiostream

svn-id: r13629

2 files changed, 16 insertions, 54 deletions

diff --git a/sound/audiostream.cpp b/sound/audiostream.cpp
index 0c31a65f0e..02889fc714 100644
--- a/sound/audiostream.cpp
+++ b/sound/audiostream.cpp
@@ -214,6 +214,7 @@ public:
 
 	void append(const byte *data, uint32 len);
 	void finish()				{ _finalized = true; }
+	uint32 getFreeSpace();
 };
 
 
@@ -298,6 +299,20 @@ void AppendableMemoryStream<stereo, is16Bit, isUnsigned>::append(const byte *dat
 	}
 }
 
+template<bool stereo, bool is16Bit, bool isUnsigned>
+uint32 AppendableMemoryStream<stereo, is16Bit, isUnsigned>::getFreeSpace() {
+	uint32 free;
+
+	if (_pos <= _end) {
+		uint32 free_from_end = _bufferEnd - _end;
+		uint32 free_to_pos = _pos - _bufferStart;
+		free = free_from_end + free_to_pos;
+	} else {
+		free = _pos - _end;
+	}
+	
+	return free;
+}
 
 #pragma mark -
 #pragma mark --- Procedural stream ---
@@ -336,35 +351,6 @@ public:
 };
 #endif
 
-CustomProcInputStream::CustomProcInputStream(int rate, byte flags, CustomInputProc proc, void *refCon) {
-	_refCon = refCon;
-	_refStream = this;
-	_rate = rate;
-	_proc = proc;
-	_finished = false;
-	_isStereo   = (flags & SoundMixer::FLAG_STEREO) != 0;
-	_is16Bit    = (flags & SoundMixer::FLAG_16BITS) != 0;
-	_isUnsigned = (flags & SoundMixer::FLAG_UNSIGNED) != 0;
-	assert(!(flags & SoundMixer::FLAG_LITTLE_ENDIAN));
-	assert(!(flags & SoundMixer::FLAG_AUTOFREE));
-}
-
-int CustomProcInputStream::readBuffer(int16 *buffer, const int numSamples) {
-	int numBytes = numSamples;
-	numBytes *= (_is16Bit ? 2 : 1);
-	byte *tmpBuffer = (byte *)malloc(numBytes);
-	int gotSamples = (_proc)(_refCon, _refStream, tmpBuffer, numBytes) / (_is16Bit ? 2 : 1);
-
-	const byte *ptr = tmpBuffer;
-	for (int samples = 0; samples < gotSamples; samples++) {
-		*buffer++ = READSAMPLE(_is16Bit, _isUnsigned, ptr);
-		ptr += (_is16Bit ? 2 : 1);
-	}
-
-	free(tmpBuffer);
-	return gotSamples;
-}
-
 #pragma mark -
 #pragma mark --- Input stream factories ---
 #pragma mark -
diff --git a/sound/audiostream.h b/sound/audiostream.h
index 5e6c41fdfc..2dbc1ae81c 100644
--- a/sound/audiostream.h
+++ b/sound/audiostream.h
@@ -93,6 +93,7 @@ class AppendableAudioStream : public AudioStream {
 public:
 	virtual void append(const byte *data, uint32 len) = 0;
 	virtual void finish() = 0;
+	virtual uint32 getFreeSpace() = 0;
 };
 
 class ZeroInputStream : public AudioStream {
@@ -113,31 +114,6 @@ public:
 	int getRate() const { return -1; }
 };
 
-class CustomProcInputStream : public AudioStream {
-public:
-	typedef int (*CustomInputProc)(void *refCon, CustomProcInputStream *stream, byte *data, uint len);
-
-private:
-	bool _isStereo;
-	bool _is16Bit;
-	bool _isUnsigned;
-	int _rate;
-	CustomInputProc _proc;
-	CustomProcInputStream *_refStream;
-	void *_refCon;
-	bool _finished;
-
-public:
-
-	CustomProcInputStream(int rate, byte flags, CustomInputProc proc, void *refCon);
-
-	int readBuffer(int16 *buffer, const int numSamples);
-	bool isStereo() const { return _isStereo; }
-	bool endOfData() const { return _finished; }
-	void finish() { _finished = true; }
-	int getRate() const { return _rate; }
-};
-
 AudioStream *makeLinearInputStream(int rate, byte _flags, const byte *ptr, uint32 len, uint loopOffset, uint loopLen);
 AppendableAudioStream *makeAppendableAudioStream(int rate, byte _flags, uint32 len);