public byte[] Read(Stream stream, out int x, out int y, out int comp, int req_comp)
{
_stream = stream;
try
{
int xx, yy, ccomp;
var result = StbImage.stbi_load_from_callbacks(_callbacks, null, &xx, &yy, &ccomp, req_comp);
x = xx;
y = yy;
comp = ccomp;
if (result == null)
{
throw new Exception(StbImage.LastError);
}
// Convert to array
var c = req_comp != 0 ? req_comp : comp;
var data = new byte[x * y * c];
Marshal.Copy(new IntPtr(result), data, 0, data.Length);
CRuntime.free(result);
return(data);
}
finally
{
_stream = null;
}
}
public Color[] Read(Stream stream, out int x, out int y, out int comp)
{
_stream = stream;
try
{
int xx, yy, ccomp;
var result = StbImage.stbi_load_from_callbacks(_callbacks, null, &xx, &yy, &ccomp, StbImage.STBI_rgb_alpha);
x = xx;
y = yy;
comp = ccomp;
if (result == null)
{
throw new Exception(StbImage.LastError);
}
// Convert to color array
var data = new Color[x * y];
var src = result;
fixed(Color *dest = data)
{
for (var i = 0; i < data.Length; ++i)
{
dest[i].R = *src++;
dest[i].G = *src++;
dest[i].B = *src++;
dest[i].A = *src++;
}
}
CRuntime.free(result);
return(data);
}
finally
{
_stream = null;
}
}