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public static UnpackColor ( float &r, float &g, float &b, float &a, PixelFormat pf, |
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| r | float | The color is returned here (as float) |
| g | float | The color is returned here (as float) |
| b | float | The color is returned here (as float) |
| a | float | The color is returned here (as float) |
| pf | PixelFormat | Pixelformat in which to read the color |
| src | Source memory location | |
| Результат | void | |
public static void UnpackColor( out float r, out float g, out float b, out float a, PixelFormat pf, IntPtr src )
{
PixelFormatDescription des = GetDescriptionFor( pf );
if ( ( des.flags & PixelFormatFlags.NativeEndian ) != 0 )
{
// Shortcut for integer formats unpacking
uint value = Bitwise.IntRead( src, des.elemBytes );
if ( ( des.flags & PixelFormatFlags.Luminance ) != 0 )
{
// Luminance format -- only rbits used
r = g = b = Bitwise.FixedToFloat(
( value & des.rmask ) >> des.rshift, des.rbits );
}
else
{
r = Bitwise.FixedToFloat( ( value & des.rmask ) >> des.rshift, des.rbits );
g = Bitwise.FixedToFloat( ( value & des.gmask ) >> des.gshift, des.gbits );
b = Bitwise.FixedToFloat( ( value & des.bmask ) >> des.bshift, des.bbits );
}
if ( ( des.flags & PixelFormatFlags.HasAlpha ) != 0 )
a = Bitwise.FixedToFloat( ( value & des.amask ) >> des.ashift, des.abits );
else
a = 1.0f; // No alpha, default a component to full
}
else
{
unsafe{
switch (pf)
{
case PixelFormat.FLOAT32_R:
r = g = b = ((float*)src)[0];
a = 1.0f;
break;
case PixelFormat.FLOAT32_RGB:
r = ((float*)src)[0];
g = ((float*)src)[1];
b = ((float*)src)[2];
a = 1.0f;
break;
case PixelFormat.FLOAT32_RGBA:
r = ((float*)src)[0];
g = ((float*)src)[1];
b = ((float*)src)[2];
a = ((float*)src)[3];
break;
case PixelFormat.FLOAT16_R:
r = g = b = Bitwise.HalfToFloat(((ushort*)src)[0]);
a = 1.0f;
break;
case PixelFormat.FLOAT16_RGB:
r = Bitwise.HalfToFloat(((ushort*)src)[0]);
g = Bitwise.HalfToFloat(((ushort*)src)[1]);
b = Bitwise.HalfToFloat(((ushort*)src)[2]);
a = 1.0f;
break;
case PixelFormat.FLOAT16_RGBA:
r = Bitwise.HalfToFloat(((ushort*)src)[0]);
g = Bitwise.HalfToFloat(((ushort*)src)[1]);
b = Bitwise.HalfToFloat(((ushort*)src)[2]);
a = Bitwise.HalfToFloat(((ushort*)src)[3]);
break;
case PixelFormat.SHORT_RGBA:
r = Bitwise.FixedToFloat(((ushort*)src)[0], 16);
g = Bitwise.FixedToFloat(((ushort*)src)[1], 16);
b = Bitwise.FixedToFloat(((ushort*)src)[2], 16);
a = Bitwise.FixedToFloat(((ushort*)src)[3], 16);
break;
case PixelFormat.BYTE_LA:
r = g = b = Bitwise.FixedToFloat(((byte*)src)[0], 8);
a = Bitwise.FixedToFloat(((byte*)src)[1], 8);
break;
default:
// Not yet supported
throw new Exception("Unpack from " + pf + " not implemented, in PixelUtil.UnpackColor");
}
}
}
}
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PixelConverter::UnpackColor ( PixelFormat pf, |
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PixelConverter::UnpackColor ( byte &r, byte &g, byte &b, byte &a, PixelFormat pf, |
private void Unpack(ref ColorEx dst, int x, int y, int z, PixelFormat format, BufferBase src, PixelBox srcbox,
int elemsize)
{
var data = src + (elemsize * ((x) + (y) * srcbox.RowPitch + (z) * srcbox.SlicePitch));
dst = PixelConverter.UnpackColor(format, data);
}
