public static UnsafeBuffer Decode(VoidPtr addr, uint length, WiiColorComponentType componentType)
{
int bytesPerVal = 0;
ColorCodecConverter dec;
switch (componentType)
{
case WiiColorComponentType.RGB565:
dec = Color_wRGB565_RGBA;
bytesPerVal = 2;
break;
case WiiColorComponentType.RGB8:
dec = Color_RGB_RGBA;
bytesPerVal = 3;
break;
case WiiColorComponentType.RGBA4:
dec = Color_wRGBA4_RGBA;
bytesPerVal = 3;
break;
case WiiColorComponentType.RGBA6:
dec = Color_wRGBA6_RGBA;
bytesPerVal = 2;
break;
case WiiColorComponentType.RGBA8:
dec = Color_RGBA_RGBA;
bytesPerVal = 4;
break;
case WiiColorComponentType.RGBX8:
dec = Color_RGBX_RGBA;
bytesPerVal = 4;
break;
default: return(null);
}
int count = (int)(length / bytesPerVal);
UnsafeBuffer buffer = new UnsafeBuffer(count * 4);
byte * pIn = (byte *)addr;
byte * pOut = (byte *)buffer.Address;
while (count-- > 0)
{
dec(ref pIn, ref pOut);
}
return(buffer);
}
private void Evaluate()
{
//Colors will almost always need remapping
_remapData = new Remapper();
_remapData.Remap(new MemoryList <RGBAPixel>(_pData, _srcCount), null); //Don't bother sorting
int[] imp = _remapData._impTable;
int impLen = imp.Length;
_dstCount = impLen;
//Do we have alpha?
int i = 0;
while (i < _dstCount && _pData[imp[i]].A == 255)
{
i++;
}
_hasAlpha = i < _srcCount;
//Determine format
if (_hasAlpha)
{
_outType = WiiColorComponentType.RGBA8;
}
else
{
_outType = WiiColorComponentType.RGB8;
}
switch (_outType)
{
case WiiColorComponentType.RGB565:
case WiiColorComponentType.RGBA4:
_dstStride = 2;
break;
case WiiColorComponentType.RGB8:
case WiiColorComponentType.RGBA6:
_dstStride = 3;
break;
case WiiColorComponentType.RGBA8:
case WiiColorComponentType.RGBX8:
_dstStride = 4;
break;
}
_dataLen = _dstStride * _dstCount;
GetEncoder();
}
private void Evaluate()
{
//Colors will almost always need remapping
_remapData = new Remapper();
_remapData.Remap<RGBAPixel>(new MemoryList<RGBAPixel>(_pData, _srcCount), null); //Don't bother sorting
int[] imp = _remapData._impTable;
int impLen = imp.Length;
_dstCount = impLen;
//Do we have alpha?
int i = 0;
while ((i < _dstCount) && (_pData[imp[i]].A == 255)) i++;
_hasAlpha = i < _srcCount;
//Determine format
if (_hasAlpha)
_outType = WiiColorComponentType.RGBA8;
else
_outType = WiiColorComponentType.RGB8;
switch (_outType)
{
case WiiColorComponentType.RGB565:
case WiiColorComponentType.RGBA4:
_dstStride = 2; break;
case WiiColorComponentType.RGB8:
case WiiColorComponentType.RGBA6:
_dstStride = 3; break;
case WiiColorComponentType.RGBA8:
case WiiColorComponentType.RGBX8:
_dstStride = 4; break;
}
_dataLen = _dstStride * _dstCount;
GetEncoder();
}
