diff options
| -rw-r--r-- | OpenAL32/alSource.c | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/OpenAL32/alSource.c b/OpenAL32/alSource.c index 44cd8b41..9b4909c5 100644 --- a/OpenAL32/alSource.c +++ b/OpenAL32/alSource.c @@ -1908,7 +1908,15 @@ static ALboolean GetSourceOffset(ALsource *pSource, ALenum eName, ALfloat *pflOf break; case AL_BYTE_OFFSET: // Take into account the original format of the Buffer - if (aluBytesFromFormat(eOriginalFormat) == 1) + if ((eOriginalFormat == AL_FORMAT_MONO_IMA4) || + (eOriginalFormat == AL_FORMAT_STEREO_IMA4)) + { + // Compression rate of the ADPCM supported is 3.6111 to 1 + lBytesPlayed = (ALint)((ALfloat)lBytesPlayed / 3.6111f); + // Round down to nearest ADPCM block + *pflOffset = (ALfloat)((lBytesPlayed / (36 * lChannels)) * 36 * lChannels); + } + else if (aluBytesFromFormat(eOriginalFormat) == 1) { *pflOffset = (ALfloat)(lBytesPlayed >> 1); } @@ -1916,14 +1924,6 @@ static ALboolean GetSourceOffset(ALsource *pSource, ALenum eName, ALfloat *pflOf { *pflOffset = (ALfloat)(lBytesPlayed << 1); } - else if ((eOriginalFormat == AL_FORMAT_MONO_IMA4) || - (eOriginalFormat == AL_FORMAT_STEREO_IMA4)) - { - // Compression rate of the ADPCM supported is 3.6111 to 1 - lBytesPlayed = (ALint)((ALfloat)lBytesPlayed / 3.6111f); - // Round down to nearest ADPCM block - *pflOffset = (ALfloat)((lBytesPlayed / (36 * lChannels)) * 36 * lChannels); - } else { *pflOffset = (ALfloat)lBytesPlayed; @@ -2062,23 +2062,23 @@ static ALint GetByteOffset(ALsource *pSource) { case AL_BYTE_OFFSET: // Take into consideration the original format - if (aluBytesFromFormat(pBuffer->eOriginalFormat) == 1) + if ((pBuffer->eOriginalFormat == AL_FORMAT_MONO_IMA4) || + (pBuffer->eOriginalFormat == AL_FORMAT_STEREO_IMA4)) { - lByteOffset = pSource->lOffset * 2; + // Round down to nearest ADPCM block + lByteOffset = (pSource->lOffset / (36 * lChannels)) * 36 * lChannels; + // Multiply by compression rate + lByteOffset = (ALint)(3.6111f * (ALfloat)lByteOffset); lByteOffset -= (lByteOffset % (lChannels * 2)); } - else if (aluBytesFromFormat(pBuffer->eOriginalFormat) == 4) + else if (aluBytesFromFormat(pBuffer->eOriginalFormat) == 1) { - lByteOffset = pSource->lOffset / 2; + lByteOffset = pSource->lOffset * 2; lByteOffset -= (lByteOffset % (lChannels * 2)); } - else if ((pBuffer->eOriginalFormat == AL_FORMAT_MONO_IMA4) || - (pBuffer->eOriginalFormat == AL_FORMAT_STEREO_IMA4)) + else if (aluBytesFromFormat(pBuffer->eOriginalFormat) == 4) { - // Round down to nearest ADPCM block - lByteOffset = (pSource->lOffset / (36 * lChannels)) * 36 * lChannels; - // Multiply by compression rate - lByteOffset = (ALint)(3.6111f * (ALfloat)lByteOffset); + lByteOffset = pSource->lOffset / 2; lByteOffset -= (lByteOffset % (lChannels * 2)); } else |