diff options
Diffstat (limited to 'engines/sword1/sound.cpp')
| -rw-r--r-- | engines/sword1/sound.cpp | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/engines/sword1/sound.cpp b/engines/sword1/sound.cpp index c2576ee7d4..f699a4c475 100644 --- a/engines/sword1/sound.cpp +++ b/engines/sword1/sound.cpp @@ -260,24 +260,30 @@ int16 *Sound::uncompressSpeech(uint32 index, uint32 cSize, uint32 *size) { uint32 srcPos = headerPos >> 1; cSize /= 2; uint32 dstPos = 0; - /* alloc 200 additional bytes, as the demo sometimes has ASCII junk - at the end of the wave data */ - int16 *dstData = (int16*)malloc(resSize * 2 + 200); - while (srcPos < cSize) { + int16 *dstData = (int16*)malloc(resSize * 2); + int32 samplesLeft = resSize; + while (srcPos < cSize && samplesLeft > 0) { int16 length = (int16)READ_LE_UINT16(srcData + srcPos); srcPos++; if (length < 0) { length = -length; + if (length > samplesLeft) + length = samplesLeft; for (uint16 cnt = 0; cnt < (uint16)length; cnt++) dstData[dstPos++] = srcData[srcPos]; srcPos++; } else { + if (length > samplesLeft) + length = samplesLeft; memcpy(dstData + dstPos, srcData + srcPos, length * 2); dstPos += length; srcPos += length; } + samplesLeft -= length; + } + if (samplesLeft > 0) { + memset(dstData + dstPos, 0, samplesLeft * 2); } - assert(dstPos < (uint32)resSize + 100); if (_cowMode == CowDemo) // demo has wave output size embedded in the compressed data *(uint32*)dstData = 0; free(fBuf); |