static void SetSDLAttributes(GLProfile profile)
{
SDL.SDL_GL_ResetAttributes();
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_DOUBLEBUFFER, 1);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_RED_SIZE, 8);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_GREEN_SIZE, 8);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_BLUE_SIZE, 8);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_ALPHA_SIZE, 0);
var useAngle = profile == GLProfile.ANGLE ? "1" : "0";
SDL.SDL_SetHint("SDL_OPENGL_ES_DRIVER", useAngle);
switch (profile)
{
case GLProfile.Modern:
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_CONTEXT_MINOR_VERSION, 2);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_CONTEXT_PROFILE_MASK, (int)SDL.SDL_GLprofile.SDL_GL_CONTEXT_PROFILE_CORE);
break;
case GLProfile.ANGLE:
case GLProfile.Embedded:
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_CONTEXT_MINOR_VERSION, 0);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_CONTEXT_PROFILE_MASK, (int)SDL.SDL_GLprofile.SDL_GL_CONTEXT_PROFILE_ES);
break;
case GLProfile.Legacy:
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL.SDL_GL_SetAttribute(SDL.SDL_GLattr.SDL_GL_CONTEXT_MINOR_VERSION, 1);
break;
}
}
static DisplaySettingsLogic()
{
var original = Game.Settings;
OriginalGraphicsMode = original.Graphics.Mode;
OriginalVideoDisplay = original.Graphics.VideoDisplay;
OriginalGraphicsWindowedSize = original.Graphics.WindowedSize;
OriginalGraphicsFullscreenSize = original.Graphics.FullscreenSize;
OriginalGLProfile = original.Graphics.GLProfile;
}
public GLFeature(string api, Version number, string name)
{
Api = api;
Number = number;
Name = name;
BaseProfile = new GLProfile(string.Empty);
Profiles = new Dictionary <string, GLProfile>();
Profiles.Add(BaseProfile.Name, BaseProfile);
}
static bool CanCreateGLWindow(GLProfile profile, List <string> errorLog)
{
// Implementation inspired by TestIndividualGLVersion from Veldrid
// Need to create and destroy its own SDL contexts as a workaround for specific buggy drivers
if (SDL.SDL_Init(SDL.SDL_INIT_VIDEO) != 0)
{
// Continue to harvest additional SDL errors below
errorLog.Add($"{profile}: SDL init failed: {SDL.SDL_GetError()}");
SDL.SDL_ClearError();
}
SetSDLAttributes(profile);
var flags = SDL.SDL_WindowFlags.SDL_WINDOW_HIDDEN | SDL.SDL_WindowFlags.SDL_WINDOW_OPENGL;
var window = SDL.SDL_CreateWindow("", 0, 0, 1, 1, flags);
if (window == IntPtr.Zero || !string.IsNullOrEmpty(SDL.SDL_GetError()))
{
errorLog.Add($"{profile}: SDL window creation failed: {SDL.SDL_GetError()}");
SDL.SDL_ClearError();
SDL.SDL_Quit();
return(false);
}
var context = SDL.SDL_GL_CreateContext(window);
if (context == IntPtr.Zero || SDL.SDL_GL_MakeCurrent(window, context) < 0)
{
errorLog.Add($"{profile}: GL context creation failed: {SDL.SDL_GetError()}");
SDL.SDL_ClearError();
SDL.SDL_DestroyWindow(window);
SDL.SDL_Quit();
return(false);
}
// Distinguish between ANGLE and native GLES
var success = true;
if (profile == GLProfile.ANGLE || profile == GLProfile.Embedded)
{
var isAngle = SDL.SDL_GL_ExtensionSupported("GL_ANGLE_texture_usage") == SDL.SDL_bool.SDL_TRUE;
success = isAngle ^ (profile != GLProfile.ANGLE);
if (!success)
{
errorLog.Add(isAngle ? "GL profile is ANGLE" : "GL profile is Embedded");
}
}
SDL.SDL_GL_DeleteContext(context);
SDL.SDL_DestroyWindow(window);
SDL.SDL_Quit();
return(success);
}
public GLProfile GetOrCreateProfile(string profileName)
{
if (profileName == null)
{
return(BaseProfile);
}
if (!Profiles.TryGetValue(profileName, out var profile))
{
profile = new GLProfile(profileName);
Profiles.Add(profileName, profile);
}
return(profile);
}
public Sdl2PlatformWindow(Size requestEffectiveWindowSize, WindowMode windowMode,
float scaleModifier, int batchSize, int videoDisplay, GLProfile requestProfile, bool enableLegacyGL)
{
// Lock the Window/Surface properties until initialization is complete
lock (syncObject)
{
this.scaleModifier = scaleModifier;
// Disable legacy scaling on Windows
if (Platform.CurrentPlatform == PlatformType.Windows)
{
SetProcessDPIAware();
}
// Decide which OpenGL profile to use.
// Prefer standard GL over GLES provided by the native driver
var testProfiles = new List <GLProfile> {
GLProfile.ANGLE, GLProfile.Modern, GLProfile.Embedded
};
if (enableLegacyGL)
{
testProfiles.Add(GLProfile.Legacy);
}
supportedProfiles = testProfiles
.Where(CanCreateGLWindow)
.ToArray();
if (!supportedProfiles.Any())
{
throw new InvalidOperationException("No supported OpenGL profiles were found.");
}
profile = supportedProfiles.Contains(requestProfile) ? requestProfile : supportedProfiles.First();
// Note: This must be called after the CanCreateGLWindow checks above,
// which needs to create and destroy its own SDL contexts as a workaround for specific buggy drivers
SDL.SDL_Init(SDL.SDL_INIT_VIDEO);
SetSDLAttributes(profile);
Console.WriteLine("Using SDL 2 with OpenGL ({0}) renderer", profile);
if (videoDisplay < 0 || videoDisplay >= DisplayCount)
{
videoDisplay = 0;
}
SDL.SDL_GetCurrentDisplayMode(videoDisplay, out var display);
// Windows and Linux define window sizes in native pixel units.
// Query the display/dpi scale so we can convert our requested effective size to pixels.
// This is not necessary on macOS, which defines window sizes in effective units ("points").
if (Platform.CurrentPlatform == PlatformType.Windows)
{
// Launch the game with OPENRA_DISPLAY_SCALE to force a specific scaling factor
// Otherwise fall back to Windows's DPI configuration
var scaleVariable = Environment.GetEnvironmentVariable("OPENRA_DISPLAY_SCALE");
if (scaleVariable == null || !float.TryParse(scaleVariable, NumberStyles.Float, NumberFormatInfo.InvariantInfo, out windowScale) || windowScale <= 0)
{
if (SDL.SDL_GetDisplayDPI(videoDisplay, out var ddpi, out _, out _) == 0)
{
windowScale = ddpi / 96;
}
}
}
else if (Platform.CurrentPlatform == PlatformType.Linux)
{
// Launch the game with OPENRA_DISPLAY_SCALE to force a specific scaling factor
// Otherwise fall back to GDK_SCALE or parsing the x11 DPI configuration
var scaleVariable = Environment.GetEnvironmentVariable("OPENRA_DISPLAY_SCALE") ?? Environment.GetEnvironmentVariable("GDK_SCALE");
if (scaleVariable == null || !float.TryParse(scaleVariable, NumberStyles.Float, NumberFormatInfo.InvariantInfo, out windowScale) || windowScale <= 0)
{
// Attempt to automatically detect DPI
try
{
var psi = new ProcessStartInfo("/usr/bin/xrdb", "-query");
psi.UseShellExecute = false;
psi.RedirectStandardOutput = true;
var p = Process.Start(psi);
var lines = p.StandardOutput.ReadToEnd().Split('\n');
foreach (var line in lines)
{
if (line.StartsWith("Xft.dpi") && int.TryParse(line.Substring(8), out var dpi))
{
windowScale = dpi / 96f;
}
}
}
catch { }
}
}
Console.WriteLine("Desktop resolution: {0}x{1}", display.w, display.h);
if (requestEffectiveWindowSize.Width == 0 && requestEffectiveWindowSize.Height == 0)
{
Console.WriteLine("No custom resolution provided, using desktop resolution");
surfaceSize = windowSize = new Size(display.w, display.h);
}
else
{
surfaceSize = windowSize = new Size((int)(requestEffectiveWindowSize.Width * windowScale), (int)(requestEffectiveWindowSize.Height * windowScale));
}
Console.WriteLine("Using resolution: {0}x{1}", windowSize.Width, windowSize.Height);
var windowFlags = SDL.SDL_WindowFlags.SDL_WINDOW_OPENGL | SDL.SDL_WindowFlags.SDL_WINDOW_ALLOW_HIGHDPI;
// HiDPI doesn't work properly on OSX with (legacy) fullscreen mode
if (Platform.CurrentPlatform == PlatformType.OSX && windowMode == WindowMode.Fullscreen)
{
SDL.SDL_SetHint(SDL.SDL_HINT_VIDEO_HIGHDPI_DISABLED, "1");
}
window = SDL.SDL_CreateWindow("OpenRA", SDL.SDL_WINDOWPOS_CENTERED_DISPLAY(videoDisplay), SDL.SDL_WINDOWPOS_CENTERED_DISPLAY(videoDisplay),
windowSize.Width, windowSize.Height, windowFlags);
if (Platform.CurrentPlatform == PlatformType.Linux)
{
// The KDE task switcher limits itself to the 128px icon unless we
// set an X11 _KDE_NET_WM_DESKTOP_FILE property on the window
var currentDesktop = Environment.GetEnvironmentVariable("XDG_CURRENT_DESKTOP");
var desktopFilename = Environment.GetEnvironmentVariable("OPENRA_DESKTOP_FILENAME");
if (desktopFilename != null && currentDesktop == "KDE")
{
try
{
var info = default(SDL.SDL_SysWMinfo);
SDL.SDL_VERSION(out info.version);
SDL.SDL_GetWindowWMInfo(Window, ref info);
var d = info.info.x11.display;
var w = info.info.x11.window;
var property = XInternAtom(d, "_KDE_NET_WM_DESKTOP_FILE", false);
var type = XInternAtom(d, "UTF8_STRING", false);
XChangeProperty(d, w, property, type, 8, IntPtr.Zero, desktopFilename, desktopFilename.Length + 1);
XFlush(d);
}
catch
{
Log.Write("debug", "Failed to set _KDE_NET_WM_DESKTOP_FILE");
Console.WriteLine("Failed to set _KDE_NET_WM_DESKTOP_FILE");
}
}
}
// Enable high resolution rendering for Retina displays
if (Platform.CurrentPlatform == PlatformType.OSX)
{
// OSX defines the window size in "points", with a device-dependent number of pixels per point.
// The window scale is simply the ratio of GL pixels / window points.
SDL.SDL_GL_GetDrawableSize(Window, out var width, out var height);
surfaceSize = new Size(width, height);
windowScale = width * 1f / windowSize.Width;
}
else
{
windowSize = new Size((int)(surfaceSize.Width / windowScale), (int)(surfaceSize.Height / windowScale));
}
Console.WriteLine("Using window scale {0:F2}", windowScale);
if (Game.Settings.Game.LockMouseWindow)
{
GrabWindowMouseFocus();
}
else
{
ReleaseWindowMouseFocus();
}
if (windowMode == WindowMode.Fullscreen)
{
SDL.SDL_SetWindowFullscreen(Window, (uint)SDL.SDL_WindowFlags.SDL_WINDOW_FULLSCREEN);
// Fullscreen mode on OSX will ignore the configured display resolution
// and instead always picks an arbitrary scaled resolution choice that may
// not match the window size, leading to graphical and input issues.
// We work around this by force disabling HiDPI and resetting the window and
// surface sizes to match the size that is forced by SDL.
// This is usually not what the player wants, but is the best we can consistently do.
if (Platform.CurrentPlatform == PlatformType.OSX)
{
SDL.SDL_GetWindowSize(Window, out var width, out var height);
windowSize = surfaceSize = new Size(width, height);
windowScale = 1;
}
}
else if (windowMode == WindowMode.PseudoFullscreen)
{
SDL.SDL_SetWindowFullscreen(Window, (uint)SDL.SDL_WindowFlags.SDL_WINDOW_FULLSCREEN_DESKTOP);
SDL.SDL_SetHint(SDL.SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS, "0");
}
}
// Run graphics rendering on a dedicated thread.
// The calling thread will then have more time to process other tasks, since rendering happens in parallel.
// If the calling thread is the main game thread, this means it can run more logic and render ticks.
// This is disabled when running in windowed mode on Windows because it breaks the ability to minimize/restore the window.
if (Platform.CurrentPlatform == PlatformType.Windows && windowMode == WindowMode.Windowed)
{
var ctx = new Sdl2GraphicsContext(this);
ctx.InitializeOpenGL();
context = ctx;
}
else
{
context = new ThreadedGraphicsContext(new Sdl2GraphicsContext(this), batchSize);
}
context.SetVSyncEnabled(Game.Settings.Graphics.VSync);
SDL.SDL_SetModState(SDL.SDL_Keymod.KMOD_NONE);
input = new Sdl2Input();
}
public Sdl2PlatformWindow(Size requestEffectiveWindowSize, WindowMode windowMode,
float scaleModifier, int batchSize, int videoDisplay, GLProfile requestProfile)
{
// Lock the Window/Surface properties until initialization is complete
lock (syncObject)
{
this.scaleModifier = scaleModifier;
// Disable legacy scaling on Windows
if (Platform.CurrentPlatform == PlatformType.Windows)
{
SetProcessDPIAware();
}
// Decide which OpenGL profile to use.
// We first need to query the available profiles on Windows/Linux.
// On macOS, known/consistent OpenGL support is provided by the OS.
if (Platform.CurrentPlatform == PlatformType.OSX)
{
supportedProfiles = new[] { GLProfile.Modern, GLProfile.Legacy }
}
;
else
{
supportedProfiles = new[] { GLProfile.Modern, GLProfile.Embedded, GLProfile.Legacy }
}
public IPlatformWindow CreateWindow(Size size, WindowMode windowMode, float scaleModifier, int batchSize, int videoDisplay, GLProfile profile, bool enableLegacyGL)
{
return(new Sdl2PlatformWindow(size, windowMode, scaleModifier, batchSize, videoDisplay, profile, enableLegacyGL));
}
/**
* Returns the highest OpenGL profile available on the current graphics device that is compatible with World Wind.
* The returned profile favors hardware acceleration over software acceleration. With JOGL version 2.0, this returns
* the highest available profile from the following list:
* <p/>
* <ul> <li>OpenGL compatibility profile 4.x</li> <li>OpenGL compatibility profile 3.x</li> <li>OpenGL profile 1.x
* up to 3.0</li> </ul>
*
* @return the highest compatible OpenGL profile.
*/
public static GLProfile getMaxCompatibleGLProfile()
{
return(GLProfile.getMaxFixedFunc(true)); // Favor a hardware rasterizer.
}
/** * Creates TextureData from the given URL. Does no OpenGL work. * * @param glp the OpenGL Profile this texture data should be created for. * @param url the URL from which to read the texture data * @param useMipMaps whether mipmaps should be produced for this texture either by auto-generating them or reading * them from the file. Some file formats support multiple mipmaps in a single file in which case * those mipmaps will be used rather than generating them. * * @return the texture data from the URL, or null if none of the registered texture providers could read the URL * * @throws IOException if an error occurred while reading the URL */ public static TextureData newTextureData(GLProfile glp, URL url, bool useMipMaps) throws IOException
