gl context works

.gitignore

@@ -18,3 +18,8 @@ sheet-*.png
 log.txt
 
 /replay.rep
+
+# dependency DLLs (different for every platform!)
+cg.dll
+cgGL.dll
+glfw.dll

OpenRa.Game/Graphics/LineRenderer.cs

@@ -1,5 +1,5 @@
 using System.Drawing;
-using OpenRa.Gl;
+using OpenRa.GlRenderer;
 
 namespace OpenRa.Graphics
 {

OpenRa.Game/Graphics/MappedImage.cs

@@ -1,6 +1,6 @@
 using System.Xml;
 using System.Drawing;
-using OpenRa.Gl;
+using OpenRa.GlRenderer;
 using System.IO;
 namespace OpenRa.Graphics
 {

OpenRa.Game/Graphics/Renderer.cs

@@ -1,6 +1,6 @@
 using System.Drawing;
 using System.Windows.Forms;
-using OpenRa.Gl;
+using OpenRa.GlRenderer;
 using OpenRa.FileFormats;
 using OpenRa.Support;
 
@@ -22,10 +22,10 @@ namespace OpenRa.Graphics
 		//readonly SpriteHelper sh;
 		//readonly FontHelper fhDebug, fhTitle;
 
-		public Renderer(Control host, Size resolution, bool windowed)
+		public Renderer(Control control, Size resolution, bool windowed)
 		{
-			host.ClientSize = resolution;
-			device = new GraphicsDevice(host, resolution.Width, resolution.Height, windowed, false);
+            control.ClientSize = resolution;
+			device = new GraphicsDevice(control, resolution.Width, resolution.Height, windowed, false);
 
 			SpriteShader = new Shader(device, FileSystem.Open("world-shp.fx"));
 			SpriteShader.Quality = ShaderQuality.Low;

OpenRa.Game/Graphics/Sheet.cs

@@ -1,5 +1,5 @@
 using System.Drawing;
-using OpenRa.Gl;
+using OpenRa.GlRenderer;
 using OpenRa.FileFormats;
 
 namespace OpenRa.Graphics

OpenRa.Game/Graphics/SpriteRenderer.cs

@@ -1,4 +1,4 @@
-using OpenRa.Gl;
+using OpenRa.GlRenderer;
 
 namespace OpenRa.Graphics
 {

OpenRa.Game/Graphics/TerrainRenderer.cs

@@ -1,5 +1,5 @@
 using System.Drawing;
-using OpenRa.Gl;
+using OpenRa.GlRenderer;
 using IjwFramework.Collections;
 using OpenRa.FileFormats;
 

OpenRa.Game/Graphics/Vertex.cs

@@ -1,5 +1,5 @@
 using System.Runtime.InteropServices;
-using OpenRa.Gl;
+using OpenRa.GlRenderer;
 
 namespace OpenRa.Graphics
 {

OpenRa.Gl/GraphicsDevice.cs

@@ -1,22 +1,70 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Windows.Forms;
 using System.Drawing;
 using System.IO;
+using System.Windows.Forms;
 
-namespace OpenRa.Gl
+using Tao.OpenGl;
+using Tao.Cg;
+using Tao.Platform.Windows;
+using System.Runtime.InteropServices;
+
+namespace OpenRa.GlRenderer
 {
     public class GraphicsDevice
     {
-        public GraphicsDevice(Control host, int width, int height, bool fullscreen, bool vsync) { }
-        public void EnableScissor(int left, int top, int width, int height) { }
-        public void DisableScissor() { }
+        Graphics g;
+        IntPtr dc;
+        IntPtr rc;
+
+        public GraphicsDevice(Control control, int width, int height, bool fullscreen, bool vsync)
+        {
+            g = control.CreateGraphics();
+            dc = g.GetHdc();
+            
+            var pfd = new Gdi.PIXELFORMATDESCRIPTOR
+            {
+                nSize = (short)Marshal.SizeOf(typeof(Gdi.PIXELFORMATDESCRIPTOR)),
+                nVersion = 1,
+                dwFlags = Gdi.PFD_SUPPORT_OPENGL | Gdi.PFD_DRAW_TO_BITMAP | Gdi.PFD_DOUBLEBUFFER,
+                iPixelType = Gdi.PFD_TYPE_RGBA,
+                cColorBits = 24,
+                iLayerType = Gdi.PFD_MAIN_PLANE
+            };
+
+            var iFormat = Gdi.ChoosePixelFormat(dc, ref pfd);
+            Gdi.SetPixelFormat(dc, iFormat, ref pfd);
+
+            rc = Wgl.wglCreateContext(dc);
+            if (rc == IntPtr.Zero)
+                throw new InvalidOperationException("can't create wglcontext");
+            Wgl.wglMakeCurrent(dc, rc);
+        }
+
+        public void EnableScissor(int left, int top, int width, int height)
+        {
+            Gl.glScissor(left, top, width, height);
+            Gl.glEnable(Gl.GL_SCISSOR_TEST);
+        }
+
+        public void DisableScissor()
+        {
+            Gl.glDisable(Gl.GL_SCISSOR_TEST);
+        }
+
         public void Begin() { }
         public void End() { }
-        public void Clear(Color c) { }
-        public void Present() { }
+
+        public void Clear(Color c)
+        {
+            Gl.glClearColor(1, 1, 1, 1); 
+            Gl.glClear(Gl.GL_COLOR_BUFFER_BIT);
+        }
+
+        public void Present()
+        {
+            Wgl.wglSwapBuffers(dc);
+        }
+
         public void DrawIndexedPrimitives(PrimitiveType pt, Range<int> vertices, Range<int> indices) { }
         public void DrawIndexedPrimitives(PrimitiveType pt, int numVerts, int numPrimitives) { }
     }

OpenRa.Gl/OpenRa.Gl.csproj

@@ -8,7 +8,7 @@
     <ProjectGuid>{67CF1A10-C5F6-48FA-B1A7-FE83BE4CE2CC}</ProjectGuid>
     <OutputType>Library</OutputType>
     <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>OpenRa.Gl</RootNamespace>
+    <RootNamespace>OpenRa.GlRenderer</RootNamespace>
     <AssemblyName>OpenRa.Gl</AssemblyName>
     <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
@@ -48,6 +48,7 @@
     <Reference Include="Tao.Cg, Version=2.0.0.0, Culture=neutral, PublicKeyToken=52fa5aba625fe731, processorArchitecture=MSIL" />
     <Reference Include="Tao.Glfw, Version=2.6.0.0, Culture=neutral, PublicKeyToken=2bb092b6587e4402, processorArchitecture=MSIL" />
     <Reference Include="Tao.OpenGl, Version=2.1.0.12, Culture=neutral, PublicKeyToken=1ca010269a4501ef, processorArchitecture=MSIL" />
+    <Reference Include="Tao.Platform.Windows, Version=1.0.0.5, Culture=neutral, PublicKeyToken=701104b2da67a104, processorArchitecture=MSIL" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="GraphicsDevice.cs" />