static void SetGamma(Glfw.Window window, float gamma)
{
var monitor = Glfw.GetWindowMonitor(window);
if (!monitor)
{
monitor = Glfw.GetPrimaryMonitor();
}
if (gamma < 0f)
{
return;
}
// It is recommended to use gamma ramps of size 256, as that is the size supported by
// all graphics cards on all platforms.
const int kSize = 256;
var ramp = new Glfw.GammaRamp
{
Red = new ushort[256],
Green = new ushort[256],
Blue = new ushort[256]
};
for (int i = 0; i < kSize; i++)
{
float value;
// Calculate intensity
value = (float)i / (float)(kSize - 1);
// Apply gamma curve
value = (float)Math.Pow(value, 1f / gamma) * 65535f + 0.5f;
// Clamp to value range
if (value < 0f)
{
value = 0f;
}
else if (value > 65535f)
{
value = 65535f;
}
ramp.Red[i] = (ushort)value;
ramp.Green[i] = (ushort)value;
ramp.Blue[i] = (ushort)value;
}
m_GammaValue = gamma;
Log("Set Gamma: {0}", m_GammaValue);
Glfw.SetGammaRamp(monitor, ramp);
var r = Glfw.GetGammaRamp(monitor);
for (int i = 0; i < r.Size; i++)
{
Log("Ramp {0}: {1},{2},{3}", i, r.Red[i], r.Green[i], r.Blue[i]);
}
}
