diff options
Diffstat (limited to 'engines/bladerunner/adpcm_decoder.cpp')
| -rw-r--r-- | engines/bladerunner/adpcm_decoder.cpp | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/engines/bladerunner/adpcm_decoder.cpp b/engines/bladerunner/adpcm_decoder.cpp index c93d4eb2c1..33c4282e1c 100644 --- a/engines/bladerunner/adpcm_decoder.cpp +++ b/engines/bladerunner/adpcm_decoder.cpp @@ -22,6 +22,7 @@ #include "bladerunner/adpcm_decoder.h" +#include "common/endian.h" #include "common/util.h" namespace BladeRunner { @@ -122,7 +123,7 @@ uint16 imaStepTable[712] = { 0x0fff,0x2ffe,0x4ffe,0x6ffd,0x8ffe,0xaffd,0xcffd,0xeffc }; -void ADPCMWestwoodDecoder::decode(uint8 *in, size_t size, int16 *out) { +void ADPCMWestwoodDecoder::decode(uint8 *in, size_t size, int16 *out, bool forceLittleEndianOut) { uint8 *end = in + size; int16 stepIndex = _stepIndex; @@ -149,8 +150,16 @@ void ADPCMWestwoodDecoder::decode(uint8 *in, size_t size, int16 *out) { predictor = CLIP<int32>(predictor, -32768, 32767); - *out++ = (int16)predictor; - + if (forceLittleEndianOut) { + // Bugfix: + // enforce "little-endian" type of output for VQA audio stream + // This is needed for Big Endian platforms to behave correctly in raw audio streams in VQA videos + // because in VQADecoder::VQAAudioTrack::decodeAudioFrame() a raw stream is created for the audio + // with the explicit flag: FLAG_LITTLE_ENDIAN + WRITE_LE_INT16(out++, (int16)predictor); + } else { + *out++ = (int16)predictor; + } stepIndex = imaIndexTable[code] + stepIndex; stepIndex = CLIP<int16>(stepIndex, 0, 88); } |