diff --git a/source/funkin/backend/utils/AudioAnalyzer.hx b/source/funkin/backend/utils/AudioAnalyzer.hx index e3a0fc63..6364a0ee 100644 --- a/source/funkin/backend/utils/AudioAnalyzer.hx +++ b/source/funkin/backend/utils/AudioAnalyzer.hx @@ -43,42 +43,34 @@ class AudioAnalyzer { } inline function __analyze(startPos:Float, endPos:Float, ?outSeperate:Array):Float { - var pos = Math.floor(startPos * __toBits), end = Math.floor(endPos * __toBits), buf = #if js buffer.data #else buffer.data.buffer #end; - var max = 0, b = 0, c = 0, useSeperate = outSeperate != null; + var pos = Math.floor(startPos * __toBits), end = Math.floor(endPos * __toBits), buf = buffer.data #if !js .buffer #end; + var max = 0, b = 0, w = 0, c = 0, useSeperate = outSeperate != null; if (useSeperate) { while (c < outSeperate.length) outSeperate[c++] *= __bitSize; while (c++ < buffer.channels) outSeperate.push(0); c = Math.floor((pos % (__wordSize * buffer.channels)) / __wordSize); } - if (__wordSize == 1) { // 8-bit audio data is unsigned (0 is 128, 128 is 256, -128 is 0) - while (pos < end) { - if (max < (b = #if js buf[pos] #else buf.get(pos) #end - __bitSize)) max = b; - if (useSeperate) { - if (outSeperate[c] < b) outSeperate[c] = b; - if (++c > buffer.channels) c = 0; - } - pos++; - } - } - else { - pos -= pos % __wordSize; - end -= end % __wordSize; - var w = 0; - while (pos < end) { + pos -= pos % __wordSize; + end -= end % __wordSize; + + while (pos < end) { + // 8-bit audio data is unsigned (0 is 128, 128 is 256, -128 is 0) + if (__wordSize == 1) b = #if js buf[pos] #else buf.get(pos) #end - __bitSize; + else { while (w < buffer.bitsPerSample) { b |= #if js buf[pos] #else buf.get(pos) #end << w; w += 8; pos++; } if (b > __bitSize) b -= __bitUnsignedSize; - if (max < b) max = b; - if (useSeperate) { - if (outSeperate[c] < b) outSeperate[c] = b; - if (++c > buffer.channels) c = 0; - } - w = b = 0; } + if (max < b) max = b; + if (useSeperate) { + if (outSeperate[c] < b) outSeperate[c] = b; + if (++c > buffer.channels) c = 0; + } + w = b = 0; } return max / __bitSize; @@ -113,7 +105,7 @@ class AudioAnalyzer { if (useSeperate) { while (c < outSeperate.length) outSeperate[c++] *= __bitSize; while (c++ < buffer.channels) outSeperate.push(0); - c = Math.floor((pos % (__wordSize * buffer.channels)) / __wordSize); + c = 0; } while (n > 0) { n -= (result = __vorbis.read(__buffer, 0, n < bufferSize ? n : bufferSize, isBigEndian, __wordSize, true)); @@ -122,12 +114,15 @@ class AudioAnalyzer { else if (result <= 0) break; while (pos < result) { - while (w < buffer.bitsPerSample) { - b |= #if js __buffer[pos] #else __buffer.get(pos) #end << w; - w += 8; - pos++; + if (__wordSize == 1) b = __buffer.get(pos) - __bitSize; + else { + while (w < buffer.bitsPerSample) { + b |= __buffer.get(pos) << w; + w += 8; + pos++; + } + if (b > __bitSize) b -= __bitUnsignedSize; } - if (b > __bitSize) b -= __bitUnsignedSize; if (max < b) max = b; if (useSeperate) { if (outSeperate[c] < b) outSeperate[c] = b;