private void SetGraphicsState(GraphicsState state)
{
switch (state.SamplerState)
{
case SamplerState.PointWrap:
GraphicsDevice.SamplerStates[0] = Microsoft.Xna.Framework.Graphics.SamplerState.PointWrap;
break;
case SamplerState.PointClamp:
GraphicsDevice.SamplerStates[0] = Microsoft.Xna.Framework.Graphics.SamplerState.PointClamp;
break;
case SamplerState.LinearWrap:
GraphicsDevice.SamplerStates[0] = Microsoft.Xna.Framework.Graphics.SamplerState.LinearWrap;
break;
case SamplerState.LinearClamp:
GraphicsDevice.SamplerStates[0] = Microsoft.Xna.Framework.Graphics.SamplerState.LinearClamp;
break;
case SamplerState.AnisotropicWrap:
GraphicsDevice.SamplerStates[0] = Microsoft.Xna.Framework.Graphics.SamplerState.AnisotropicWrap;
break;
case SamplerState.AnisotropicClamp:
GraphicsDevice.SamplerStates[0] = Microsoft.Xna.Framework.Graphics.SamplerState.AnisotropicClamp;
break;
default:
throw new ArgumentOutOfRangeException();
}
switch (state.BlendState)
{
case BlendState.AlphaBlend:
GraphicsDevice.BlendState = Microsoft.Xna.Framework.Graphics.BlendState.AlphaBlend;
break;
case BlendState.Opaque:
GraphicsDevice.BlendState = Microsoft.Xna.Framework.Graphics.BlendState.Opaque;
break;
default:
throw new ArgumentOutOfRangeException();
}
GraphicsDevice.RasterizerState = (state.UseScissorRect) ? Scissor : NoScissor;
if (state.UseScissorRect)
{
GraphicsDevice.ScissorRectangle = state.ScissorRect.ToMg();
}
if (state.Texture == -1)
{
throw new InvalidOperationException("An attempt was made to render a polygon without a texture.");
}
_effect.Alpha = 1f;
_effect.FogEnabled = false;
_effect.LightingEnabled = false;
_effect.Projection = Matrix.CreateOrthographicOffCenter(GraphicsDevice.Viewport.Bounds, GraphicsDevice.Viewport.MinDepth, GraphicsDevice.Viewport.MaxDepth);
_effect.View = Matrix.Identity;
_effect.World = Matrix.Identity;
_effect.TextureEnabled = true;
_effect.Texture = _textures[state.Texture];
_effect.VertexColorEnabled = true;
_prevState = state;
}