98 lines
2.8 KiB
Haxe
98 lines
2.8 KiB
Haxe
package kha;
|
|
|
|
import haxe.io.Bytes;
|
|
import haxe.io.BytesOutput;
|
|
import kha.audio2.ogg.vorbis.Reader;
|
|
|
|
/**
|
|
* Contains compressed or uncompressed audio data.
|
|
*/
|
|
@:cppFileCode("\n#define STB_VORBIS_HEADER_ONLY\n#include <kinc/libs/stb_vorbis.c>")
|
|
class Sound implements Resource {
|
|
public var compressedData: Bytes;
|
|
public var uncompressedData: kha.arrays.Float32Array;
|
|
public var length: Float = 0; // in seconds
|
|
public var channels: Int = 0;
|
|
public var sampleRate: Int = 0;
|
|
|
|
public function new() {}
|
|
|
|
#if kha_kore
|
|
public function uncompress(done: Void->Void): Void {
|
|
if (uncompressedData != null) {
|
|
done();
|
|
return;
|
|
}
|
|
|
|
var samples: Int = 0;
|
|
var channels: Int = 0;
|
|
var samplesPerSecond: Int = 0;
|
|
|
|
untyped __cpp__("int16_t *data = nullptr");
|
|
untyped __cpp__("samples = stb_vorbis_decode_memory((uint8_t*)compressedData->b->GetBase(), compressedData->length, &channels, &samplesPerSecond, &data)");
|
|
|
|
if (channels == 1) {
|
|
length = samples / samplesPerSecond;
|
|
uncompressedData = new kha.arrays.Float32Array(samples * 2);
|
|
for (i in 0...samples) {
|
|
untyped __cpp__("*((float*)&this->uncompressedData->self.data[({0} * 2) * 4]) = data[{0}] / 32767.0f", i);
|
|
untyped __cpp__("*((float*)&this->uncompressedData->self.data[({0} * 2 + 1) * 4]) = data[{0}] / 32767.0f", i);
|
|
}
|
|
}
|
|
else {
|
|
length = samples / samplesPerSecond;
|
|
samples *= channels;
|
|
uncompressedData = new kha.arrays.Float32Array(samples);
|
|
for (i in 0...samples) {
|
|
untyped __cpp__("*((float*)&this->uncompressedData->self.data[{0} * 4]) = data[{0}] / 32767.0f", i);
|
|
}
|
|
}
|
|
this.channels = channels;
|
|
this.sampleRate = samplesPerSecond;
|
|
|
|
untyped __cpp__("delete[] data");
|
|
|
|
compressedData = null;
|
|
done();
|
|
}
|
|
#else
|
|
public function uncompress(done: Void->Void): Void {
|
|
#if (!kha_no_ogg)
|
|
if (uncompressedData != null) {
|
|
done();
|
|
return;
|
|
}
|
|
|
|
var output = new BytesOutput();
|
|
var header = Reader.readAll(compressedData, output, true);
|
|
var soundBytes = output.getBytes();
|
|
var count = Std.int(soundBytes.length / 4);
|
|
if (header.channel == 1) {
|
|
length = count / kha.audio2.Audio.samplesPerSecond; // header.sampleRate;
|
|
uncompressedData = new kha.arrays.Float32Array(count * 2);
|
|
for (i in 0...count) {
|
|
uncompressedData[i * 2 + 0] = soundBytes.getFloat(i * 4);
|
|
uncompressedData[i * 2 + 1] = soundBytes.getFloat(i * 4);
|
|
}
|
|
}
|
|
else {
|
|
length = count / 2 / kha.audio2.Audio.samplesPerSecond; // header.sampleRate;
|
|
uncompressedData = new kha.arrays.Float32Array(count);
|
|
for (i in 0...count) {
|
|
uncompressedData[i] = soundBytes.getFloat(i * 4);
|
|
}
|
|
}
|
|
channels = header.channel;
|
|
sampleRate = header.sampleRate;
|
|
compressedData = null;
|
|
done();
|
|
#end
|
|
}
|
|
#end
|
|
|
|
public function unload() {
|
|
compressedData = null;
|
|
uncompressedData = null;
|
|
}
|
|
}
|