git-svn-id: svn://svn.ijw.co.nz/svn/OpenRa@1167 993157c7-ee19-0410-b2c4-bb4e9862e678

OpenRa.Game/Renderer.cs

@@ -0,0 +1,82 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Windows.Forms;
+using System.Drawing;
+using BluntDirectX.Direct3D;
+using System.IO;
+
+namespace OpenRa.Game
+{
+	class Renderer
+	{
+		readonly GraphicsDevice device;
+		readonly Effect shader;
+
+		readonly IntPtr r1Handle, r2Handle, baseTextureHandle, scrollHandle;
+
+		const string shaderName = "diffuse.fx";
+
+		public Renderer(Control host, Size resolution, bool windowed)
+		{
+			host.ClientSize = resolution;
+			device = GraphicsDevice.Create(host, 
+				resolution.Width, resolution.Height, windowed, false);
+
+			shader = new Effect(device, File.OpenRead("../../../" + shaderName));
+			shader.Quality = ShaderQuality.Low;
+
+			baseTextureHandle = shader.GetHandle("DiffuseTexture");
+			scrollHandle = shader.GetHandle("Scroll");
+			r1Handle = shader.GetHandle("r1");
+			r2Handle = shader.GetHandle("r2");
+		}
+
+		public GraphicsDevice Device { get { return device; } }
+
+		public void BeginFrame( PointF r1, PointF r2, PointF scroll )
+		{
+			device.Begin();
+			device.Clear(0, Surfaces.Color);
+
+			shader.SetValue(scrollHandle, scroll);
+			shader.SetValue(r1Handle, r1);
+			shader.SetValue(r2Handle, r2);
+		}
+
+		public void EndFrame()
+		{
+			device.End();
+			device.Present();
+		}
+
+		public void DrawWithShader(ShaderQuality quality, MethodInvoker task)
+		{
+			shader.Quality = quality;
+
+			int passes = shader.Begin();
+			for (int pass = 0; pass < passes; pass++)
+			{
+				shader.BeginPass(pass);
+				task();
+				shader.EndPass();
+			}
+
+			shader.End();
+		}
+
+		public void DrawBatch<T>(FvfVertexBuffer<T> vertices, IndexBuffer indices,
+			Range<int> vertexRange, Range<int> indexRange, Texture texture)
+			where T : struct
+		{
+			shader.SetTexture(baseTextureHandle, texture);
+			shader.Commit();
+
+			vertices.Bind(0);
+			indices.Bind();
+
+			device.DrawIndexedPrimitives(PrimitiveType.TriangleList,
+				vertexRange, indexRange);
+		}
+	}
+}