/// <summary>
/// Clears one bound color target.
/// </summary>
/// <param name="state">GPU state at the time of the call</param>
/// <param name="arg0">First argument of the call</param>
private void ClearColor(IDeviceState state, int arg0)
{
int index = (arg0 >> 6) & 0xf;
int layerCount = state.Read(ColorLayerCountOffset + index * ColorStructSize);
_processor.ThreedClass.Clear(arg0, layerCount);
}
/// <summary>
/// Reads data from a GPU register at the given offset.
/// </summary>
/// <param name="offset">Offset to be read</param>
/// <returns>Data at the register</returns>
public int Read(int offset)
{
if (_deviceState != null)
{
return(_deviceState.Read(offset * 4));
}
return(_memory[offset]);
}
/// <summary>
/// Clears the current depth-stencil target.
/// </summary>
/// <param name="state">GPU state at the time of the call</param>
/// <param name="arg0">First argument of the call</param>
private void ClearDepthStencil(IDeviceState state, int arg0)
{
int layerCount = state.Read(ZetaLayerCountOffset);
_processor.ThreedClass.Clear(arg0, layerCount);
}
/// <summary>
/// Reads data from a GPU register.
/// </summary>
/// <param name="state">Current GPU state</param>
/// <param name="reg">Register offset to read</param>
/// <returns>GPU register value</returns>
private int Read(IDeviceState state, int reg)
{
return(state.Read(reg * 4));
}
/// <summary>
/// Reads data from a GPU register.
/// </summary>
/// <param name="state">Current GPU state</param>
/// <param name="reg">Register offset to read</param>
/// <returns>GPU register value</returns>
public static int Read(IDeviceState state, int reg)
{
return(state.Read(reg * 4));
}
