/// <summary>
/// Produce <see cref="DeviceStatusFlags"/> containing updated <see cref="ShowTitleScreenFlags"/> for a given <see cref="Device"/>.
/// </summary>
/// <param name="device">The <see cref="Device"/> whose updated flags are desired.</param>
/// <param name="newTitleScreenFlags">New <see cref="ShowTitleScreenFlags"/> to apply to <paramref name="device"/>.</param>
/// <returns>A new set of <see cref="DeviceStatusFlags"/> with updated ShowTitleScreenFlags for <paramref name="device"/>.</returns>
internal static DeviceStatusFlags UpdateStatusFlags(this Device device, ShowTitleScreenFlags newTitleScreenFlags)
{
var deviceStatusFlags = device.DeviceStatusFlags & ~DeviceStatusFlags.ShowTitleScreenMask;
deviceStatusFlags |= newTitleScreenFlags.ToDeviceStatusFlagsLo();
return(deviceStatusFlags);
}
public void DeviceStatusFlagsLo_ToShowTitleScreenFlags_ReturnsExpectedFlags(DeviceStatusFlagsLo statusFlagsLo, ShowTitleScreenFlags expectedShowTitleScreenFlags)
{
var actualShowTitleScreenFlags = statusFlagsLo.ToShowTitleScreenFlags();
// NOTE: Implementation coerces 'reserved' to 'on power up'. Replicate this here.
if (expectedShowTitleScreenFlags == ShowTitleScreenFlags.Reserved)
{
expectedShowTitleScreenFlags = ShowTitleScreenFlags.OnPowerUp;
}
Assert.Equal(expectedShowTitleScreenFlags, actualShowTitleScreenFlags);
}
/// <summary>
/// Places save menu position flags into the more generic <see cref="DeviceStatusFlagsLo"/> bit array.
/// </summary>
/// <param name="showTitleScreen">The <see cref="ShowTitleScreenFlags"/> to convert.</param>
/// <returns>The flags placed in a <see cref="DeviceStatusFlagsLo"/> bit array.</returns>
internal static DeviceStatusFlagsLo ToDeviceStatusFlagsLo(this ShowTitleScreenFlags showTitleScreen)
{
var deviceStatusFlags = (DeviceStatusFlagsLo)((ulong)showTitleScreen << DeviceStatusFlagsLoHelpers.ShowTitleScreenBitsOffset);
return(deviceStatusFlags);
}
/// <summary>
/// Converts <see cref="ShowTitleScreenFlags"/> into a display string.
/// </summary>
/// <param name="showTitleScreen">The <see cref="ShowTitleScreenFlags"/> value to convert.</param>
/// <returns>A display string for the value.</returns>
internal static string ToDisplayString(this ShowTitleScreenFlags showTitleScreen)
{
return(ModeToStringsTable[showTitleScreen]);
}
