您最多选择25个主题
主题必须以中文或者字母或数字开头，可以包含连字符 (-)，并且长度不得超过35个字符
477 行
20 KiB
477 行
20 KiB
using UnityEngine;
|
|
using UnityEditor.VFXToolbox;
|
|
|
|
// MiniEXR 2013 by Aras Pranckevicius / Unity Technologies.
|
|
//
|
|
// C# conversion by Ilya Suzdalnitski.
|
|
// Slightly Modified by Thomas Ich�
|
|
//
|
|
// Writes OpenEXR RGB files out of half-precision RGBA or RGB data.
|
|
//
|
|
|
|
namespace MiniEXR {
|
|
//Based on source-forge project: http://sourceforge.net/projects/csharp-half/
|
|
internal static class HalfHelper
|
|
{
|
|
private static uint[] mantissaTable = GenerateMantissaTable();
|
|
private static uint[] exponentTable = GenerateExponentTable();
|
|
private static ushort[] offsetTable = GenerateOffsetTable();
|
|
private static ushort[] baseTable = GenerateBaseTable();
|
|
private static sbyte[] shiftTable = GenerateShiftTable();
|
|
|
|
// Transforms the subnormal representation to a normalized one.
|
|
private static uint ConvertMantissa(int i)
|
|
{
|
|
uint m = (uint)(i << 13); // Zero pad mantissa bits
|
|
uint e = 0; // Zero exponent
|
|
|
|
// While not normalized
|
|
while ((m & 0x00800000) == 0)
|
|
{
|
|
e -= 0x00800000; // Decrement exponent (1<<23)
|
|
m <<= 1; // Shift mantissa
|
|
}
|
|
m &= unchecked((uint)~0x00800000); // Clear leading 1 bit
|
|
e += 0x38800000; // Adjust bias ((127-14)<<23)
|
|
return m | e; // Return combined number
|
|
}
|
|
|
|
private static uint[] GenerateMantissaTable()
|
|
{
|
|
uint[] mantissaTable = new uint[2048];
|
|
mantissaTable[0] = 0;
|
|
for (int i = 1; i < 1024; i++)
|
|
{
|
|
mantissaTable[i] = ConvertMantissa(i);
|
|
}
|
|
for (int i = 1024; i < 2048; i++)
|
|
{
|
|
mantissaTable[i] = (uint)(0x38000000 + ((i - 1024) << 13));
|
|
}
|
|
|
|
return mantissaTable;
|
|
}
|
|
private static uint[] GenerateExponentTable()
|
|
{
|
|
uint[] exponentTable = new uint[64];
|
|
exponentTable[0] = 0;
|
|
for (int i = 1; i < 31; i++)
|
|
{
|
|
exponentTable[i] = (uint)(i << 23);
|
|
}
|
|
exponentTable[31] = 0x47800000;
|
|
exponentTable[32] = 0x80000000;
|
|
for (int i = 33; i < 63; i++)
|
|
{
|
|
exponentTable[i] = (uint)(0x80000000 + ((i - 32) << 23));
|
|
}
|
|
exponentTable[63] = 0xc7800000;
|
|
|
|
return exponentTable;
|
|
}
|
|
private static ushort[] GenerateOffsetTable()
|
|
{
|
|
ushort[] offsetTable = new ushort[64];
|
|
offsetTable[0] = 0;
|
|
for (int i = 1; i < 32; i++)
|
|
{
|
|
offsetTable[i] = 1024;
|
|
}
|
|
offsetTable[32] = 0;
|
|
for (int i = 33; i < 64; i++)
|
|
{
|
|
offsetTable[i] = 1024;
|
|
}
|
|
|
|
return offsetTable;
|
|
}
|
|
private static ushort[] GenerateBaseTable()
|
|
{
|
|
ushort[] baseTable = new ushort[512];
|
|
for (int i = 0; i < 256; ++i)
|
|
{
|
|
sbyte e = (sbyte)(127 - i);
|
|
if (e > 24)
|
|
{ // Very small numbers map to zero
|
|
baseTable[i | 0x000] = 0x0000;
|
|
baseTable[i | 0x100] = 0x8000;
|
|
}
|
|
else if (e > 14)
|
|
{ // Small numbers map to denorms
|
|
baseTable[i | 0x000] = (ushort)(0x0400 >> (18 + e));
|
|
baseTable[i | 0x100] = (ushort)((0x0400 >> (18 + e)) | 0x8000);
|
|
}
|
|
else if (e >= -15)
|
|
{ // Normal numbers just lose precision
|
|
baseTable[i | 0x000] = (ushort)((15 - e) << 10);
|
|
baseTable[i | 0x100] = (ushort)(((15 - e) << 10) | 0x8000);
|
|
}
|
|
else if (e > -128)
|
|
{ // Large numbers map to Infinity
|
|
baseTable[i | 0x000] = 0x7c00;
|
|
baseTable[i | 0x100] = 0xfc00;
|
|
}
|
|
else
|
|
{ // Infinity and NaN's stay Infinity and NaN's
|
|
baseTable[i | 0x000] = 0x7c00;
|
|
baseTable[i | 0x100] = 0xfc00;
|
|
}
|
|
}
|
|
|
|
return baseTable;
|
|
}
|
|
private static sbyte[] GenerateShiftTable()
|
|
{
|
|
sbyte[] shiftTable = new sbyte[512];
|
|
for (int i = 0; i < 256; ++i)
|
|
{
|
|
sbyte e = (sbyte)(127 - i);
|
|
if (e > 24)
|
|
{ // Very small numbers map to zero
|
|
shiftTable[i | 0x000] = 24;
|
|
shiftTable[i | 0x100] = 24;
|
|
}
|
|
else if (e > 14)
|
|
{ // Small numbers map to denorms
|
|
shiftTable[i | 0x000] = (sbyte)(e - 1);
|
|
shiftTable[i | 0x100] = (sbyte)(e - 1);
|
|
}
|
|
else if (e >= -15)
|
|
{ // Normal numbers just lose precision
|
|
shiftTable[i | 0x000] = 13;
|
|
shiftTable[i | 0x100] = 13;
|
|
}
|
|
else if (e > -128)
|
|
{ // Large numbers map to Infinity
|
|
shiftTable[i | 0x000] = 24;
|
|
shiftTable[i | 0x100] = 24;
|
|
}
|
|
else
|
|
{ // Infinity and NaN's stay Infinity and NaN's
|
|
shiftTable[i | 0x000] = 13;
|
|
shiftTable[i | 0x100] = 13;
|
|
}
|
|
}
|
|
|
|
return shiftTable;
|
|
}
|
|
|
|
public static float HalfToSingle(ushort half)
|
|
{
|
|
uint result = mantissaTable[offsetTable[half >> 10] + (half & 0x3ff)] + exponentTable[half >> 10];
|
|
|
|
return System.BitConverter.ToSingle( System.BitConverter.GetBytes( result ), 0 );
|
|
|
|
//return *((float*)&result);
|
|
}
|
|
public static ushort SingleToHalf(float single)
|
|
{
|
|
//uint value = *((uint*)&single);
|
|
|
|
uint value = System.BitConverter.ToUInt32( System.BitConverter.GetBytes( single ), 0 );
|
|
|
|
ushort result = (ushort)(baseTable[(value >> 23) & 0x1ff] + ((value & 0x007fffff) >> shiftTable[value >> 23]));
|
|
return result;
|
|
}
|
|
}
|
|
|
|
public static class MiniEXR {
|
|
|
|
// Writes EXR into a memory buffer.
|
|
// Input:
|
|
// - (width) x (height) image,
|
|
// - channels=4: 8 bytes per pixel (R,G,B,A order, 16 bit float per channel; alpha ignored), or
|
|
// - channels=3: 6 bytes per pixel (R,G,B order, 16 bit float per channel).
|
|
// Returns memory buffer with .EXR contents and buffer size in outSize. free() the buffer when done with it.
|
|
|
|
public static void MiniEXRWrite (string _filePath, uint _width, uint _height, bool _ExportAlpha, Color[] _colorArray, bool bFlipVertical) {
|
|
|
|
byte[] bytes = MiniEXRWrite(_width, _height, _ExportAlpha, _colorArray, bFlipVertical);
|
|
|
|
System.IO.File.WriteAllBytes(_filePath, bytes );
|
|
}
|
|
|
|
public static byte[] MiniEXRWrite (uint _width, uint _height, bool _ExportAlpha, Color[] _colorArray, bool bFlipVertical = false)
|
|
{
|
|
if (bFlipVertical)
|
|
_colorArray = FlipVertical(_colorArray, _width, _height);
|
|
|
|
byte stride = (byte)(_ExportAlpha ? 4 : 3);
|
|
float[] rgbaArray = new float[ _colorArray.Length * stride ];
|
|
|
|
|
|
for (int i = 0; i < _colorArray.Length; i++)
|
|
{
|
|
rgbaArray[i * stride] = _colorArray[i].r;
|
|
rgbaArray[i * stride + 1] = _colorArray[i].g;
|
|
rgbaArray[i * stride + 2] = _colorArray[i].b;
|
|
if(_ExportAlpha)
|
|
rgbaArray[i * stride + 3] = _colorArray[i].a;
|
|
}
|
|
|
|
return MiniEXRWrite(_width, _height, stride, rgbaArray);
|
|
}
|
|
|
|
private static Color[] FlipVertical(Color[] input, uint _width, uint _height)
|
|
{
|
|
Color[] output = new Color[input.Length];
|
|
|
|
uint k = 0;
|
|
for(int j = (int)_height-1; j >= 0; j--)
|
|
{
|
|
for (int i = 0; i < _width; i++)
|
|
{
|
|
int idx = i + (j * (int)_width);
|
|
output[k] = input[idx];
|
|
k++;
|
|
}
|
|
}
|
|
|
|
return output;
|
|
}
|
|
|
|
public static byte[] MiniEXRWrite (uint _width, uint _height, uint _channels, float[] _rgbaArray)
|
|
{
|
|
//const void* rgba16f
|
|
uint ww = _width-1;
|
|
uint hh = _height-1;
|
|
byte[] kHeader;
|
|
if(_channels == 3)
|
|
{
|
|
kHeader = new byte[] {
|
|
0x76, 0x2f, 0x31, 0x01, // magic
|
|
2, 0, 0, 0, // version, scanline
|
|
// channels
|
|
(byte)'c',(byte)'h',(byte)'a',(byte)'n',(byte)'n',(byte)'e',(byte)'l',(byte)'s',0,
|
|
(byte)'c',(byte)'h',(byte)'l',(byte)'i',(byte)'s',(byte)'t',0,
|
|
55,0,0,0,
|
|
(byte)'B',0, 1,0,0,0, 0, 0,0,0,1,0,0,0,1,0,0,0, // R, half
|
|
(byte)'G',0, 1,0,0,0, 0, 0,0,0,1,0,0,0,1,0,0,0, // G, half
|
|
(byte)'R',0, 1,0,0,0, 0, 0,0,0,1,0,0,0,1,0,0,0, // B, half
|
|
0,
|
|
// compression
|
|
(byte)'c',(byte)'o',(byte)'m',(byte)'p',(byte)'r',(byte)'e',(byte)'s',(byte)'s',(byte)'i',(byte)'o',(byte)'n',0,
|
|
(byte)'c',(byte)'o',(byte)'m',(byte)'p',(byte)'r',(byte)'e',(byte)'s',(byte)'s',(byte)'i',(byte)'o',(byte)'n',0,
|
|
1,0,0,0,
|
|
0, // no compression
|
|
// dataWindow
|
|
(byte)'d',(byte)'a',(byte)'t',(byte)'a',(byte)'W',(byte)'i',(byte)'n',(byte)'d',(byte)'o',(byte)'w',0,
|
|
(byte)'b',(byte)'o',(byte)'x',(byte)'2',(byte)'i',0,
|
|
16,0,0,0,
|
|
0,0,0,0,0,0,0,0,
|
|
(byte)(ww&0xFF), (byte)((ww>>8)&0xFF), (byte)((ww>>16)&0xFF), (byte)((ww>>24)&0xFF),
|
|
(byte)(hh&0xFF), (byte)((hh>>8)&0xFF), (byte)((hh>>16)&0xFF), (byte)((hh>>24)&0xFF),
|
|
// displayWindow
|
|
(byte)'d',(byte)'i',(byte)'s',(byte)'p',(byte)'l',(byte)'a',(byte)'y',(byte)'W',(byte)'i',(byte)'n',(byte)'d',(byte)'o',(byte)'w',0,
|
|
(byte)'b',(byte)'o',(byte)'x',(byte)'2',(byte)'i',0,
|
|
16,0,0,0,
|
|
0,0,0,0,0,0,0,0,
|
|
(byte)(ww&0xFF), (byte)((ww>>8)&0xFF), (byte)((ww>>16)&0xFF), (byte)((ww>>24)&0xFF),
|
|
(byte)(hh&0xFF), (byte)((hh>>8)&0xFF), (byte)((hh>>16)&0xFF), (byte)((hh>>24)&0xFF),
|
|
// lineOrder
|
|
(byte)'l',(byte)'i',(byte)'n',(byte)'e',(byte)'O',(byte)'r',(byte)'d',(byte)'e',(byte)'r',0,
|
|
(byte)'l',(byte)'i',(byte)'n',(byte)'e',(byte)'O',(byte)'r',(byte)'d',(byte)'e',(byte)'r',0,
|
|
1,0,0,0,
|
|
0, // increasing Y
|
|
// pixelAspectRatio
|
|
(byte)'p',(byte)'i',(byte)'x',(byte)'e',(byte)'l',(byte)'A',(byte)'s',(byte)'p',(byte)'e',(byte)'c',(byte)'t',(byte)'R',(byte)'a',(byte)'t',(byte)'i',(byte)'o',0,
|
|
(byte)'f',(byte)'l',(byte)'o',(byte)'a',(byte)'t',0,
|
|
4,0,0,0,
|
|
0,0,0x80,0x3f, // 1.0f
|
|
// screenWindowCenter
|
|
(byte)'s',(byte)'c',(byte)'r',(byte)'e',(byte)'e',(byte)'n',(byte)'W',(byte)'i',(byte)'n',(byte)'d',(byte)'o',(byte)'w',(byte)'C',(byte)'e',(byte)'n',(byte)'t',(byte)'e',(byte)'r',0,
|
|
(byte)'v',(byte)'2',(byte)'f',0,
|
|
8,0,0,0,
|
|
0,0,0,0, 0,0,0,0,
|
|
// screenWindowWidth
|
|
(byte)'s',(byte)'c',(byte)'r',(byte)'e',(byte)'e',(byte)'n',(byte)'W',(byte)'i',(byte)'n',(byte)'d',(byte)'o',(byte)'w',(byte)'W',(byte)'i',(byte)'d',(byte)'t',(byte)'h',0,
|
|
(byte)'f',(byte)'l',(byte)'o',(byte)'a',(byte)'t',0,
|
|
4,0,0,0,
|
|
0,0,0x80,0x3f, // 1.0f
|
|
// end of header
|
|
0,
|
|
};
|
|
}
|
|
else
|
|
{
|
|
kHeader = new byte[] {
|
|
0x76, 0x2f, 0x31, 0x01, // magic
|
|
2, 0, 0, 0, // version, scanline
|
|
// channels
|
|
(byte)'c',(byte)'h',(byte)'a',(byte)'n',(byte)'n',(byte)'e',(byte)'l',(byte)'s',0,
|
|
(byte)'c',(byte)'h',(byte)'l',(byte)'i',(byte)'s',(byte)'t',0,
|
|
55,0,0,0,
|
|
(byte)'A',0, 1,0,0,0, 0, 0,0,0,1,0,0,0,1,0,0,0, // A, half
|
|
(byte)'B',0, 1,0,0,0, 0, 0,0,0,1,0,0,0,1,0,0,0, // R, half
|
|
(byte)'G',0, 1,0,0,0, 0, 0,0,0,1,0,0,0,1,0,0,0, // G, half
|
|
(byte)'R',0, 1,0,0,0, 0, 0,0,0,1,0,0,0,1,0,0,0, // B, half
|
|
0,
|
|
// compression
|
|
(byte)'c',(byte)'o',(byte)'m',(byte)'p',(byte)'r',(byte)'e',(byte)'s',(byte)'s',(byte)'i',(byte)'o',(byte)'n',0,
|
|
(byte)'c',(byte)'o',(byte)'m',(byte)'p',(byte)'r',(byte)'e',(byte)'s',(byte)'s',(byte)'i',(byte)'o',(byte)'n',0,
|
|
1,0,0,0,
|
|
0, // no compression
|
|
// dataWindow
|
|
(byte)'d',(byte)'a',(byte)'t',(byte)'a',(byte)'W',(byte)'i',(byte)'n',(byte)'d',(byte)'o',(byte)'w',0,
|
|
(byte)'b',(byte)'o',(byte)'x',(byte)'2',(byte)'i',0,
|
|
16,0,0,0,
|
|
0,0,0,0,0,0,0,0,
|
|
(byte)(ww&0xFF), (byte)((ww>>8)&0xFF), (byte)((ww>>16)&0xFF), (byte)((ww>>24)&0xFF),
|
|
(byte)(hh&0xFF), (byte)((hh>>8)&0xFF), (byte)((hh>>16)&0xFF), (byte)((hh>>24)&0xFF),
|
|
// displayWindow
|
|
(byte)'d',(byte)'i',(byte)'s',(byte)'p',(byte)'l',(byte)'a',(byte)'y',(byte)'W',(byte)'i',(byte)'n',(byte)'d',(byte)'o',(byte)'w',0,
|
|
(byte)'b',(byte)'o',(byte)'x',(byte)'2',(byte)'i',0,
|
|
16,0,0,0,
|
|
0,0,0,0,0,0,0,0,
|
|
(byte)(ww&0xFF), (byte)((ww>>8)&0xFF), (byte)((ww>>16)&0xFF), (byte)((ww>>24)&0xFF),
|
|
(byte)(hh&0xFF), (byte)((hh>>8)&0xFF), (byte)((hh>>16)&0xFF), (byte)((hh>>24)&0xFF),
|
|
// lineOrder
|
|
(byte)'l',(byte)'i',(byte)'n',(byte)'e',(byte)'O',(byte)'r',(byte)'d',(byte)'e',(byte)'r',0,
|
|
(byte)'l',(byte)'i',(byte)'n',(byte)'e',(byte)'O',(byte)'r',(byte)'d',(byte)'e',(byte)'r',0,
|
|
1,0,0,0,
|
|
0, // increasing Y
|
|
// pixelAspectRatio
|
|
(byte)'p',(byte)'i',(byte)'x',(byte)'e',(byte)'l',(byte)'A',(byte)'s',(byte)'p',(byte)'e',(byte)'c',(byte)'t',(byte)'R',(byte)'a',(byte)'t',(byte)'i',(byte)'o',0,
|
|
(byte)'f',(byte)'l',(byte)'o',(byte)'a',(byte)'t',0,
|
|
4,0,0,0,
|
|
0,0,0x80,0x3f, // 1.0f
|
|
// screenWindowCenter
|
|
(byte)'s',(byte)'c',(byte)'r',(byte)'e',(byte)'e',(byte)'n',(byte)'W',(byte)'i',(byte)'n',(byte)'d',(byte)'o',(byte)'w',(byte)'C',(byte)'e',(byte)'n',(byte)'t',(byte)'e',(byte)'r',0,
|
|
(byte)'v',(byte)'2',(byte)'f',0,
|
|
8,0,0,0,
|
|
0,0,0,0, 0,0,0,0,
|
|
// screenWindowWidth
|
|
(byte)'s',(byte)'c',(byte)'r',(byte)'e',(byte)'e',(byte)'n',(byte)'W',(byte)'i',(byte)'n',(byte)'d',(byte)'o',(byte)'w',(byte)'W',(byte)'i',(byte)'d',(byte)'t',(byte)'h',0,
|
|
(byte)'f',(byte)'l',(byte)'o',(byte)'a',(byte)'t',0,
|
|
4,0,0,0,
|
|
0,0,0x80,0x3f, // 1.0f
|
|
// end of header
|
|
0,
|
|
};
|
|
}
|
|
|
|
|
|
uint kHeaderSize = (uint)kHeader.Length;
|
|
|
|
uint kScanlineTableSize = 8 * _height;
|
|
uint pixelRowSize = _width * _channels * 2;
|
|
uint fullRowSize = pixelRowSize + 8;
|
|
|
|
uint bufSize = kHeaderSize + kScanlineTableSize + _height * fullRowSize;
|
|
|
|
byte[] buf = new byte[bufSize];
|
|
|
|
// copy in header
|
|
|
|
int bufI = 0;
|
|
|
|
for (int i = 0; i < kHeaderSize; i++) {
|
|
buf[ bufI ] = kHeader[i];
|
|
|
|
bufI++;
|
|
}
|
|
|
|
// line offset table
|
|
uint ofs = kHeaderSize + kScanlineTableSize;
|
|
|
|
for (int y = 0; y < _height; ++y)
|
|
{
|
|
buf[ bufI++ ] = (byte)(ofs & 0xFF);
|
|
buf[ bufI++ ] = (byte)((ofs >> 8) & 0xFF);
|
|
buf[ bufI++ ] = (byte)((ofs >> 16) & 0xFF);
|
|
buf[ bufI++ ] = (byte)((ofs >> 24) & 0xFF);
|
|
buf[ bufI++ ] = 0;
|
|
buf[ bufI++ ] = 0;
|
|
buf[ bufI++ ] = 0;
|
|
buf[ bufI++ ] = 0;
|
|
|
|
ofs += fullRowSize;
|
|
}
|
|
|
|
//Convert float to half float
|
|
ushort[] srcHalf = new ushort[_rgbaArray.Length];
|
|
|
|
for (int i = 0; i < _rgbaArray.Length; i++) {
|
|
//Gamma encode before converting : no
|
|
//_rgbaArray[i] = Mathf.Pow(_rgbaArray[i], 2.2f);
|
|
srcHalf[i] = HalfHelper.SingleToHalf( _rgbaArray[i] );
|
|
}
|
|
|
|
uint srcDataI = 0;
|
|
|
|
for (int y = 0; y < _height; y++)
|
|
{
|
|
// coordinate
|
|
buf[ bufI++ ] = (byte)(y & 0xFF);
|
|
buf[ bufI++ ] = (byte)((y >> 8) & 0xFF);
|
|
buf[ bufI++ ] = (byte)((y >> 16) & 0xFF);
|
|
buf[ bufI++ ] = (byte)((y >> 24) & 0xFF);
|
|
// data size
|
|
buf[ bufI++ ] = (byte)(pixelRowSize & 0xFF);
|
|
buf[ bufI++ ] = (byte)((pixelRowSize >> 8) & 0xFF);
|
|
buf[ bufI++ ] = (byte)((pixelRowSize >> 16) & 0xFF);
|
|
buf[ bufI++ ] = (byte)((pixelRowSize >> 24) & 0xFF);
|
|
// B, G, R
|
|
//memcpy (ptr, src, width*6); //Copy first line - 6 bits, 2 bits per channel
|
|
|
|
uint tempSrcI;
|
|
|
|
//If _channels == 4, write Alpha
|
|
if(_channels == 4)
|
|
{
|
|
tempSrcI = srcDataI;
|
|
for (int x = 0; x < _width; ++x)
|
|
{
|
|
//Blue
|
|
byte[] halfBytes = System.BitConverter.GetBytes( srcHalf[ tempSrcI + 3 ] );
|
|
buf[ bufI++ ] = halfBytes[0];
|
|
buf[ bufI++ ] = halfBytes[1];
|
|
|
|
tempSrcI += _channels;
|
|
}
|
|
}
|
|
|
|
|
|
//First copy a line of B
|
|
tempSrcI = srcDataI;
|
|
for (int x = 0; x < _width; ++x)
|
|
{
|
|
//Blue
|
|
byte[] halfBytes = System.BitConverter.GetBytes( srcHalf[ tempSrcI + 2 ] );
|
|
buf[ bufI++ ] = halfBytes[0];
|
|
buf[ bufI++ ] = halfBytes[1];
|
|
|
|
tempSrcI += _channels;
|
|
}
|
|
|
|
//Then copy a line of G
|
|
tempSrcI = srcDataI;
|
|
for (int x = 0; x < _width; ++x)
|
|
{
|
|
//Blue
|
|
byte[] halfBytes = System.BitConverter.GetBytes( srcHalf[ tempSrcI + 1 ] );
|
|
buf[ bufI++ ] = halfBytes[0];
|
|
buf[ bufI++ ] = halfBytes[1];
|
|
|
|
tempSrcI += _channels;
|
|
}
|
|
|
|
//Finally copy a line of R
|
|
tempSrcI = srcDataI;
|
|
for (int x = 0; x < _width; ++x)
|
|
{
|
|
//Blue
|
|
byte[] halfBytes = System.BitConverter.GetBytes( srcHalf[ tempSrcI ] );
|
|
buf[ bufI++ ] = halfBytes[0];
|
|
buf[ bufI++ ] = halfBytes[1];
|
|
|
|
tempSrcI += _channels;
|
|
}
|
|
|
|
srcDataI += _width * _channels;
|
|
}
|
|
|
|
return buf;
|
|
}
|
|
}
|
|
}
|