public void StretchRect4x4( RenderTargetSurface dst, RenderTarget2D src, SamplerState filter = null )
{
SetDefaultRenderStates();
using( new PixEvent() ) {
rs.SetTargets( null, dst );
SetViewport(dst);
rs.PipelineState = factory[ (int)ShaderFlags.DOWNSAMPLE_2_4x4 ];
rs.VertexShaderResources[0] = src;
rs.PixelShaderResources[0] = src;
rs.PixelShaderSamplers[0] = filter ?? SamplerState.LinearPointClamp;
rs.Draw( 3, 0 );
}
rs.ResetStates();
}
public void Restart( SpriteBlend spriteBlend = SpriteBlend.AlphaBlend, SamplerState ss = null, DepthStencilState dss = null, Matrix? transform = null, Rectangle? clip = null )
{
Restart( pipelineStates[ spriteBlend ], ss, dss, transform, clip );
}
/// <summary>
///
/// </summary>
/// <param name="bs"></param>
/// <param name="ss"></param>
/// <param name="rs"></param>
/// <param name="dss"></param>
/// <param name="transform"></param>
/// <param name="clip"></param>
public void Restart( PipelineState ps, SamplerState ss = null, DepthStencilState dss = null, Matrix? transform = null, Rectangle? clip = null )
{
End();
Begin( ps, ss, dss, transform, clip );
}
/// <summary>
///
/// </summary>
public void Begin( PipelineState ps, SamplerState ss = null, DepthStencilState dss = null, Matrix? transform = null, Rectangle? clip = null )
{
if (ps==null) {
throw new ArgumentNullException("ps");
}
pipelineState = ps;
samplerState = ss ?? SamplerState.LinearWrap;
depthStencilState = dss ?? DepthStencilState.Readonly;
int w = device.DisplayBounds.Width;
int h = device.DisplayBounds.Height;
var ofs = 0.0f;
Matrix sbTransform;
if (transform.HasValue) {
sbTransform = transform.Value;
} else {
sbTransform = Matrix.OrthoOffCenterRH(ofs, w + ofs, h + ofs, ofs, -9999, 9999);
}
Vector4 clipRect = new Vector4(0,0,w,h);
if ( clip.HasValue ) {
clipRect.X = clip.Value.X;
clipRect.Y = clip.Value.Y;
clipRect.Z = clip.Value.Width;
clipRect.W = clip.Value.Height;
}
device.PipelineState = pipelineState;
device.PixelShaderSamplers[0] = samplerState;
constData.Transform = sbTransform;
constData.ClipRectangle = clipRect;
constBuffer.SetData( constData );
}