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authorTorbjörn Andersson2006-05-18 21:46:07 +0000
committerTorbjörn Andersson2006-05-18 21:46:07 +0000
commit2531fd58737b1e02b32f496ac891e5a96bf95828 (patch)
tree4b05196eebcff9bd67618bc809d98dee18db1b0a /engines/scumm/sound.cpp
parent4ead8dff26c85f76ffcb46e35f8ed8684664713a (diff)
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Added player for the Kyra 3 VQA cutscenes, based on my earlier prototype. It
could use some cleanup, and there are a couple of TODOs sprinkled throughout the code, but it seems to work reasonably well. Until the Kyra 3 main menu is implemented, it won't actually be used though. It uses the appendable audio stream class, which I have moved out of the SCUMM engine. svn-id: r22526
Diffstat (limited to 'engines/scumm/sound.cpp')
-rw-r--r--engines/scumm/sound.cpp143
1 files changed, 0 insertions, 143 deletions
diff --git a/engines/scumm/sound.cpp b/engines/scumm/sound.cpp
index b32686a215..2b56b3c808 100644
--- a/engines/scumm/sound.cpp
+++ b/engines/scumm/sound.cpp
@@ -2109,147 +2109,4 @@ int ScummEngine::readSoundResourceSmallHeader(int type, int idx) {
}
-#pragma mark -
-#pragma mark --- Appendable audio stream ---
-#pragma mark -
-
-
-/**
- * Wrapped memory stream.
- */
-template<bool stereo, bool is16Bit, bool isUnsigned, bool isLE>
-class AppendableMemoryStream : public AppendableAudioStream {
-protected:
- Common::Mutex _mutex;
-
- byte *_bufferStart;
- byte *_bufferEnd;
- byte *_pos;
- byte *_end;
- bool _finalized;
- const int _rate;
-
- inline bool eosIntern() const { return _end == _pos; };
-public:
- AppendableMemoryStream(int rate, uint bufferSize);
- ~AppendableMemoryStream();
- int readBuffer(int16 *buffer, const int numSamples);
-
- bool isStereo() const { return stereo; }
- bool endOfStream() const { return _finalized && eosIntern(); }
- bool endOfData() const { return eosIntern(); }
-
- int getRate() const { return _rate; }
-
- void append(const byte *data, uint32 len);
- void finish() { _finalized = true; }
-};
-
-template<bool stereo, bool is16Bit, bool isUnsigned, bool isLE>
-AppendableMemoryStream<stereo, is16Bit, isUnsigned, isLE>::AppendableMemoryStream(int rate, uint bufferSize)
- : _finalized(false), _rate(rate) {
-
- // Verify the buffer size is sane
- if (is16Bit && stereo)
- assert((bufferSize & 3) == 0);
- else if (is16Bit || stereo)
- assert((bufferSize & 1) == 0);
-
- _bufferStart = (byte *)malloc(bufferSize);
- _pos = _end = _bufferStart;
- _bufferEnd = _bufferStart + bufferSize;
-}
-
-template<bool stereo, bool is16Bit, bool isUnsigned, bool isLE>
-AppendableMemoryStream<stereo, is16Bit, isUnsigned, isLE>::~AppendableMemoryStream() {
- free(_bufferStart);
-}
-
-template<bool stereo, bool is16Bit, bool isUnsigned, bool isLE>
-int AppendableMemoryStream<stereo, is16Bit, isUnsigned, isLE>::readBuffer(int16 *buffer, const int numSamples) {
- Common::StackLock lock(_mutex);
-
- int samples = 0;
- while (samples < numSamples && !eosIntern()) {
- // Wrap around?
- if (_pos >= _bufferEnd)
- _pos = _pos - (_bufferEnd - _bufferStart);
-
- const byte *endMarker = (_pos > _end) ? _bufferEnd : _end;
- const int len = MIN(numSamples, samples + (int)(endMarker - _pos) / (is16Bit ? 2 : 1));
- while (samples < len) {
- *buffer++ = READ_ENDIAN_SAMPLE(is16Bit, isUnsigned, _pos, isLE);
- _pos += (is16Bit ? 2 : 1);
- samples++;
- }
- }
-
- return samples;
-}
-
-template<bool stereo, bool is16Bit, bool isUnsigned, bool isLE>
-void AppendableMemoryStream<stereo, is16Bit, isUnsigned, isLE>::append(const byte *data, uint32 len) {
- Common::StackLock lock(_mutex);
-
- // Verify the buffer size is sane
- if (is16Bit && stereo)
- assert((len & 3) == 0);
- else if (is16Bit || stereo)
- assert((len & 1) == 0);
-
- // Verify that the stream has not yet been finalized (by a call to finish())
- assert(!_finalized);
-
- if (_end + len > _bufferEnd) {
- // Wrap-around case
- uint32 size_to_end_of_buffer = _bufferEnd - _end;
- len -= size_to_end_of_buffer;
- if ((_end < _pos) || (_bufferStart + len >= _pos)) {
- debug(2, "AppendableMemoryStream: buffer overflow (A)");
- return;
- }
- memcpy(_end, data, size_to_end_of_buffer);
- memcpy(_bufferStart, data + size_to_end_of_buffer, len);
- _end = _bufferStart + len;
- } else {
- if ((_end < _pos) && (_end + len >= _pos)) {
- debug(2, "AppendableMemoryStream: buffer overflow (B)");
- return;
- }
- memcpy(_end, data, len);
- _end += len;
- }
-}
-
-
-#define MAKE_WRAPPED(STEREO, UNSIGNED) \
- if (is16Bit) { \
- if (isLE) \
- return new AppendableMemoryStream<STEREO, true, UNSIGNED, true>(rate, len); \
- else \
- return new AppendableMemoryStream<STEREO, true, UNSIGNED, false>(rate, len); \
- } else \
- return new AppendableMemoryStream<STEREO, false, UNSIGNED, false>(rate, len)
-
-AppendableAudioStream *makeAppendableAudioStream(int rate, byte _flags, uint32 len) {
- const bool isStereo = (_flags & Audio::Mixer::FLAG_STEREO) != 0;
- const bool is16Bit = (_flags & Audio::Mixer::FLAG_16BITS) != 0;
- const bool isUnsigned = (_flags & Audio::Mixer::FLAG_UNSIGNED) != 0;
- const bool isLE = (_flags & Audio::Mixer::FLAG_LITTLE_ENDIAN) != 0;
-
- if (isStereo) {
- if (isUnsigned) {
- MAKE_WRAPPED(true, true);
- } else {
- MAKE_WRAPPED(true, false);
- }
- } else {
- if (isUnsigned) {
- MAKE_WRAPPED(false, true);
- } else {
- MAKE_WRAPPED(false, false);
- }
- }
-}
-
} // End of namespace Scumm