123 lines
3.4 KiB
C#
Executable File
123 lines
3.4 KiB
C#
Executable File
#region Copyright & License Information
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/*
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* Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation. For more information,
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* see COPYING.
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*/
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#endregion
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using System;
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using System.Drawing;
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using OpenRA.FileFormats.Graphics;
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using OpenRA.Renderer.SdlCommon;
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using Tao.Cg;
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using Tao.OpenGl;
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using Tao.Sdl;
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[assembly: Renderer(typeof(OpenRA.Renderer.Cg.DeviceFactory))]
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namespace OpenRA.Renderer.Cg
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{
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public class DeviceFactory : IDeviceFactory
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{
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public IGraphicsDevice Create(Size size, WindowMode windowMode)
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{
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return new GraphicsDevice(size, windowMode);
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}
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}
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public class GraphicsDevice : IGraphicsDevice
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{
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Size windowSize;
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internal IntPtr cgContext;
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internal int vertexProfile, fragmentProfile;
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IntPtr surf;
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SdlInput input;
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public Size WindowSize { get { return windowSize; } }
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static Tao.Cg.Cg.CGerrorCallbackFuncDelegate CgErrorCallback = () =>
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{
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var err = Tao.Cg.Cg.cgGetError();
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var msg = "CG Error: {0}: {1}".F(err, Tao.Cg.Cg.cgGetErrorString(err));
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ErrorHandler.WriteGraphicsLog(msg);
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throw new InvalidOperationException("CG Error. See graphics.log for details");
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};
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public GraphicsDevice(Size size, WindowMode window)
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{
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Console.WriteLine("Using Cg renderer");
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windowSize = size;
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var extensions = new []
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{
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"GL_ARB_vertex_program",
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"GL_ARB_fragment_program",
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"GL_ARB_vertex_buffer_object",
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};
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surf = SdlGraphics.InitializeSdlGl(ref windowSize, window, extensions);
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cgContext = Tao.Cg.Cg.cgCreateContext();
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Tao.Cg.Cg.cgSetErrorCallback(CgErrorCallback);
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Tao.Cg.CgGl.cgGLRegisterStates(cgContext);
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Tao.Cg.CgGl.cgGLSetManageTextureParameters(cgContext, true);
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vertexProfile = CgGl.cgGLGetLatestProfile(CgGl.CG_GL_VERTEX);
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fragmentProfile = CgGl.cgGLGetLatestProfile(CgGl.CG_GL_FRAGMENT);
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Gl.glEnableClientState(Gl.GL_VERTEX_ARRAY);
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ErrorHandler.CheckGlError();
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Gl.glEnableClientState(Gl.GL_TEXTURE_COORD_ARRAY);
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ErrorHandler.CheckGlError();
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Sdl.SDL_SetModState(0); // i have had enough.
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input = new SdlInput(surf);
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}
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public void EnableScissor(int left, int top, int width, int height)
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{
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if (width < 0) width = 0;
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if (height < 0) height = 0;
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Gl.glScissor(left, windowSize.Height - ( top + height ), width, height);
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ErrorHandler.CheckGlError();
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Gl.glEnable(Gl.GL_SCISSOR_TEST);
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ErrorHandler.CheckGlError();
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}
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public void DisableScissor()
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{
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Gl.glDisable(Gl.GL_SCISSOR_TEST);
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ErrorHandler.CheckGlError();
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}
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public void Clear() { SdlGraphics.Clear(); }
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public void Present() { Sdl.SDL_GL_SwapBuffers(); }
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public void PumpInput(IInputHandler inputHandler) { input.PumpInput(inputHandler); }
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public void DrawPrimitives(PrimitiveType pt, int firstVertex, int numVertices)
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{
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SdlGraphics.DrawPrimitives(pt, firstVertex, numVertices);
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}
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public void SetLineWidth(float width)
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{
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Gl.glLineWidth(width);
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ErrorHandler.CheckGlError();
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}
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public IVertexBuffer<Vertex> CreateVertexBuffer(int size) { return new VertexBuffer<Vertex>(size); }
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public ITexture CreateTexture() { return new Texture(); }
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public ITexture CreateTexture(Bitmap bitmap) { return new Texture(bitmap); }
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public IShader CreateShader(string name) { return new Shader(this, name); }
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public int GpuMemoryUsed { get { return 0; } }
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}
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}
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