117 lines
3.5 KiB
C#
117 lines
3.5 KiB
C#
#region Copyright & License Information
|
|
/*
|
|
* Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
|
|
* This file is part of OpenRA, which is free software. It is made
|
|
* available to you under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation. For more information,
|
|
* see COPYING.
|
|
*/
|
|
#endregion
|
|
|
|
using System;
|
|
using System.Drawing;
|
|
using System.Linq;
|
|
using System.Runtime.InteropServices;
|
|
using OpenRA.FileFormats.Graphics;
|
|
using Tao.OpenGl;
|
|
using Tao.Sdl;
|
|
|
|
namespace OpenRA.Renderer.SdlCommon
|
|
{
|
|
public static class SdlGraphics
|
|
{
|
|
public static IntPtr InitializeSdlGl( ref Size size, WindowMode window, string[] requiredExtensions )
|
|
{
|
|
Sdl.SDL_Init( Sdl.SDL_INIT_NOPARACHUTE | Sdl.SDL_INIT_VIDEO );
|
|
Sdl.SDL_GL_SetAttribute( Sdl.SDL_GL_DOUBLEBUFFER, 1 );
|
|
Sdl.SDL_GL_SetAttribute( Sdl.SDL_GL_RED_SIZE, 8 );
|
|
Sdl.SDL_GL_SetAttribute( Sdl.SDL_GL_GREEN_SIZE, 8 );
|
|
Sdl.SDL_GL_SetAttribute( Sdl.SDL_GL_BLUE_SIZE, 8 );
|
|
Sdl.SDL_GL_SetAttribute( Sdl.SDL_GL_ALPHA_SIZE, 0 );
|
|
|
|
int windowFlags = 0;
|
|
switch( window )
|
|
{
|
|
case WindowMode.Fullscreen:
|
|
windowFlags |= Sdl.SDL_FULLSCREEN;
|
|
break;
|
|
case WindowMode.PseudoFullscreen:
|
|
windowFlags |= Sdl.SDL_NOFRAME;
|
|
Environment.SetEnvironmentVariable( "SDL_VIDEO_WINDOW_POS", "0,0" );
|
|
break;
|
|
case WindowMode.Windowed:
|
|
Environment.SetEnvironmentVariable( "SDL_VIDEO_CENTERED", "1" );
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
var info = (Sdl.SDL_VideoInfo) Marshal.PtrToStructure(
|
|
Sdl.SDL_GetVideoInfo(), typeof(Sdl.SDL_VideoInfo));
|
|
Console.WriteLine("Desktop resolution: {0}x{1}",
|
|
info.current_w, info.current_h);
|
|
|
|
if (size.Width == 0 && size.Height == 0)
|
|
{
|
|
Console.WriteLine("No custom resolution provided, using desktop resolution");
|
|
size = new Size( info.current_w, info.current_h );
|
|
}
|
|
|
|
Console.WriteLine("Using resolution: {0}x{1}", size.Width, size.Height);
|
|
|
|
var surf = Sdl.SDL_SetVideoMode( size.Width, size.Height, 0, Sdl.SDL_OPENGL | windowFlags );
|
|
if (surf == IntPtr.Zero)
|
|
Console.WriteLine("Failed to set video mode.");
|
|
|
|
Sdl.SDL_WM_SetCaption( "OpenRA", "OpenRA" );
|
|
Sdl.SDL_ShowCursor( 0 );
|
|
Sdl.SDL_EnableUNICODE( 1 );
|
|
Sdl.SDL_EnableKeyRepeat( Sdl.SDL_DEFAULT_REPEAT_DELAY, Sdl.SDL_DEFAULT_REPEAT_INTERVAL );
|
|
|
|
ErrorHandler.CheckGlError();
|
|
|
|
var extensions = Gl.glGetString(Gl.GL_EXTENSIONS);
|
|
if (extensions == null)
|
|
Console.WriteLine("Failed to fetch GL_EXTENSIONS, this is bad.");
|
|
|
|
var missingExtensions = requiredExtensions.Where(r => !extensions.Contains(r)).ToArray();
|
|
|
|
if (missingExtensions.Any())
|
|
{
|
|
ErrorHandler.WriteGraphicsLog("Unsupported GPU: Missing extensions: {0}"
|
|
.F(missingExtensions.JoinWith(",")));
|
|
throw new InvalidProgramException("Unsupported GPU. See graphics.log for details.");
|
|
}
|
|
|
|
return surf;
|
|
}
|
|
|
|
static int ModeFromPrimitiveType(PrimitiveType pt)
|
|
{
|
|
switch(pt)
|
|
{
|
|
case PrimitiveType.PointList: return Gl.GL_POINTS;
|
|
case PrimitiveType.LineList: return Gl.GL_LINES;
|
|
case PrimitiveType.TriangleList: return Gl.GL_TRIANGLES;
|
|
case PrimitiveType.QuadList: return Gl.GL_QUADS;
|
|
}
|
|
throw new NotImplementedException();
|
|
}
|
|
|
|
public static void DrawPrimitives(PrimitiveType pt, int firstVertex, int numVertices)
|
|
{
|
|
Gl.glDrawArrays(ModeFromPrimitiveType(pt), firstVertex, numVertices);
|
|
ErrorHandler.CheckGlError();
|
|
}
|
|
|
|
public static void Clear()
|
|
{
|
|
Gl.glClearColor(0, 0, 0, 0);
|
|
ErrorHandler.CheckGlError();
|
|
Gl.glClear(Gl.GL_COLOR_BUFFER_BIT);
|
|
ErrorHandler.CheckGlError();
|
|
}
|
|
}
|
|
}
|
|
|