Displaying image with normalized Display P3 colors. For use with Metal textures using bgra10_xr_srgb pixel format.

Shaders.metal

// Simple RGB to Linear RGB function respecting negative values
half channelToLinearChannel(half channel) {
    if (fabs(channel) <= 0.04045) {
        return channel / 12.92;
    }
    
    return sign(channel) * pow((fabs(channel) + 0.055) / 1.055, 2.4);
}

// Converting RGB to Linear RGB
half3 RGBToLinearRGB(half3 color) {
    return half3(channelToLinearChannel(color.r),
                 channelToLinearChannel(color.g),
                 channelToLinearChannel(color.b));
}

// Converting a color from normalized Display P3 to extendedSRGB color space
half4 displayP3ToExtendedRGB(half4 color) {
    const half3x3 displayP3ToExtendedSRGBMatrix = half3x3( 1.2249, -0.2247, 0.0,
                                                          -0.0420,  1.0419, 0.0,
                                                          -0.0197, -0.0786, 1.0979);
    
    return half4(displayP3ToExtendedSRGBMatrix * RGBToLinearRGB(color.rgb), color.a);
}

If anyone knows any other way to display a CIImage with displayP3 color space on a MTKView I would appreciate a solution.