/// <summary>
/// Finds the best set of DPI values to use when loading the font for the specified density bucket.
/// </summary>
private static void GetBestScreenDensityMatch(UltravioletContext uv, ScreenDensityBucket bucket, out Single dpiX, out Single dpiY)
{
dpiX = 96f;
dpiY = 96f;
var bestMatchFound = false;
var bestMatchScale = Single.MaxValue;
foreach (var display in uv.GetPlatform().Displays)
{
if (display.DensityBucket == bucket)
{
if (display.DensityScale < bestMatchScale)
{
bestMatchFound = true;
bestMatchScale = display.DensityScale;
dpiX = display.DpiX;
dpiY = display.DpiY;
}
}
}
if (bestMatchFound)
{
return;
}
dpiX = dpiY = ScreenDensityService.GuessDensityFromBucket(bucket);
}
/// <summary>
/// Initializes a new instance of the <see cref="UIScreenStackCollection"/> class.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
public UIScreenStackCollection(UltravioletContext uv)
{
Contract.Require(uv, nameof(uv));
var windows = uv.GetPlatform().Windows;
foreach (var window in windows)
{
CreateScreenStack(window);
}
windows.WindowCreated += WindowInfo_WindowCreated;
windows.WindowDestroyed += WindowInfo_WindowDestroyed;
this.spriteBatch = SpriteBatch.Create();
}
/// <summary>
/// Attempts to create an OpenGL context.
/// </summary>
private static IntPtr?TryCreateOpenGLContext(UltravioletContext uv, Version versionRequested, Version versionRequired, Boolean debug, Boolean throwOnFailure)
{
if (debug)
{
SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, (int)SDL_GL_CONTEXT_DEBUG_FLAG);
}
else
{
SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, 0);
}
var masterptr = ((SDL2UltravioletWindowInfo)uv.GetPlatform().Windows).GetMasterPointer();
var gles = (uv.Platform == UltravioletPlatform.Android || uv.Platform == UltravioletPlatform.iOS);
var versionArray = gles ? KnownOpenGLESVersions : KnownOpenGLVersions;
var versionMin = versionRequested ?? versionRequired;
var versionCurrent = versionRequested ?? versionArray[0];
var versionCurrentIndex = Array.IndexOf(versionArray, versionCurrent);
IntPtr context;
do
{
if (versionCurrent < versionMin)
{
if (throwOnFailure)
{
throw new InvalidOperationException(OpenGLStrings.DoesNotMeetMinimumVersionRequirement.Format(versionMin.Major, versionMin.Minor));
}
return(null);
}
if (SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, versionCurrent.Major) < 0)
{
throw new SDL2Exception();
}
if (SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, versionCurrent.Minor) < 0)
{
throw new SDL2Exception();
}
versionCurrent = versionArray[++versionCurrentIndex];
}while ((context = SDL_GL_CreateContext(masterptr)) == IntPtr.Zero);
return(context);
}
/// <summary>
/// Enlists the panel in the specified Ultraviolet context.
/// </summary>
/// <param name="uv">The Ultraviolet context in which to enlist the panel.</param>
private void CreateUltravioletWindow(UltravioletContext uv)
{
Contract.Require(uv, nameof(uv));
if (this.uv != null)
{
throw new InvalidOperationException(WindowsFormsStrings.PanelAlreadyEnlisted);
}
OnCreatingUltravioletWindow(EventArgs.Empty);
this.uv = uv;
this.uvWindow = uv.GetPlatform().Windows.CreateFromNativePointer(this.Handle);
this.uvWindow.Drawing += uvWindow_Drawing;
OnCreatedUltravioletWindow(EventArgs.Empty);
}
/// <summary>
/// Applies the specified settings.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
public void Apply(UltravioletContext uv)
{
var primary = uv.GetPlatform().Windows.GetPrimary();
if (primary == null)
{
return;
}
primary.SetWindowState(WindowState);
primary.SetWindowMode(WindowMode);
primary.WindowedClientSize = WindowedPosition.Size;
primary.WindowedPosition = WindowedPosition.Location;
primary.GrabsMouseWhenWindowed = GrabsMouseWhenWindowed;
primary.GrabsMouseWhenFullscreenWindowed = GrabsMouseWhenFullscreenWindowed;
primary.GrabsMouseWhenFullscreen = GrabsMouseWhenFullscreen;
primary.SynchronizeWithVerticalRetrace = SynchronizeWithVerticalRetrace;
if (FullscreenDisplayMode != null)
{
primary.SetFullscreenDisplayMode(FullscreenDisplayMode);
}
}
/// <summary>
/// Creates a set of window settings from the current application state.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
/// <returns>The window settings which were retrieved.</returns>
public static UltravioletApplicationWindowSettings FromCurrentSettings(UltravioletContext uv)
{
Contract.Require(uv, nameof(uv));
var primary = uv.GetPlatform().Windows.GetPrimary();
if (primary == null)
{
return(null);
}
var settings = new UltravioletApplicationWindowSettings();
settings.WindowState = primary.GetWindowState();
settings.WindowMode = primary.GetWindowMode();
settings.WindowedPosition = new Rectangle(primary.WindowedPosition, primary.WindowedClientSize);
settings.FullscreenDisplayMode = primary.GetFullscreenDisplayMode();
settings.GrabsMouseWhenWindowed = primary.GrabsMouseWhenWindowed;
settings.GrabsMouseWhenFullscreenWindowed = primary.GrabsMouseWhenFullscreenWindowed;
settings.GrabsMouseWhenFullscreen = primary.GrabsMouseWhenFullscreen;
settings.SynchronizeWithVerticalRetrace = primary.SynchronizeWithVerticalRetrace;
return(settings);
}
/// <summary>
/// Creates a set of window settings from the current application state.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
/// <returns>The window settings which were retrieved.</returns>
public static UltravioletApplicationWindowSettings FromCurrentSettings(UltravioletContext uv)
{
Contract.Require(uv, "uv");
var primary = uv.GetPlatform().Windows.GetPrimary();
if (primary == null)
return null;
var settings = new UltravioletApplicationWindowSettings();
settings.WindowState = primary.GetWindowState();
settings.WindowMode = primary.GetWindowMode();
settings.WindowedPosition = new Rectangle(primary.WindowedPosition, primary.WindowedClientSize);
settings.FullscreenDisplayMode = primary.GetFullscreenDisplayMode();
settings.SynchronizeWithVerticalRetrace = primary.SynchronizeWithVerticalRetrace;
return settings;
}
/// <summary>
/// Applies the specified settings.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
public void Apply(UltravioletContext uv)
{
var primary = uv.GetPlatform().Windows.GetPrimary();
if (primary == null)
return;
primary.SetWindowState(WindowState);
primary.SetWindowMode(WindowMode);
primary.WindowedPosition = WindowedPosition.Location;
primary.WindowedClientSize = WindowedPosition.Size;
primary.SynchronizeWithVerticalRetrace = SynchronizeWithVerticalRetrace;
if (FullscreenDisplayMode != null)
{
primary.SetFullscreenDisplayMode(FullscreenDisplayMode);
}
}
/// <summary>
/// Enlists the panel in the specified Ultraviolet context.
/// </summary>
/// <param name="uv">The Ultraviolet context in which to enlist the panel.</param>
private void CreateUltravioletWindow(UltravioletContext uv)
{
Contract.Require(uv, "uv");
if (this.uv != null)
throw new InvalidOperationException(WindowsFormsStrings.PanelAlreadyEnlisted);
OnCreatingUltravioletWindow(EventArgs.Empty);
this.uv = uv;
this.uvWindow = uv.GetPlatform().Windows.CreateFromNativePointer(this.Handle);
this.uvWindow.Drawing += uvWindow_Drawing;
OnCreatedUltravioletWindow(EventArgs.Empty);
}
/// <summary>
/// Initializes a new instance of the OpenGLUltravioletGraphics class.
/// </summary>
/// <param name="uv">The Ultraviolet context.</param>
/// <param name="configuration">The Ultraviolet Framework configuration settings for the current context.</param>
public unsafe OpenGLUltravioletGraphics(UltravioletContext uv, UltravioletConfiguration configuration) : base(uv)
{
var glGraphicsConfiguration = configuration.GraphicsConfiguration as OpenGLGraphicsConfiguration;
if (glGraphicsConfiguration == null)
{
throw new InvalidOperationException(OpenGLStrings.InvalidGraphicsConfiguration);
}
this.OpenGLEnvironment = uv.GetFactoryMethod <OpenGLEnvironmentFactory>()(uv);
InitOpenGLVersion(glGraphicsConfiguration, out var versionRequested, out var versionRequired, out var isGLES);
InitOpenGLEnvironment(glGraphicsConfiguration, isGLES);
uv.GetPlatform().InitializePrimaryWindow(configuration);
if (this.context == IntPtr.Zero && configuration.Debug)
{
this.context = TryCreateOpenGLContext(uv, OpenGLEnvironment, versionRequested, versionRequired, true, false) ?? IntPtr.Zero;
}
if (this.context == IntPtr.Zero)
{
this.context = TryCreateOpenGLContext(uv, OpenGLEnvironment, versionRequested, versionRequired, false, true) ?? IntPtr.Zero;
}
if (!OpenGLEnvironment.SetSwapInterval(1) && uv.Platform != UltravioletPlatform.iOS)
{
OpenGLEnvironment.ThrowPlatformErrorException();
}
if (gl.Initialized)
{
gl.Uninitialize();
}
gl.Initialize(new OpenGLInitializer(OpenGLEnvironment));
if (!gl.IsVersionAtLeast(versionRequested ?? versionRequired))
{
throw new InvalidOperationException(OpenGLStrings.DoesNotMeetMinimumVersionRequirement.Format(gl.MajorVersion, gl.MinorVersion, versionRequested.Major, versionRequested.Minor));
}
OpenGLState.ResetCache();
if (!VerifyCapabilities())
{
throw new NotSupportedException(OpenGLStrings.UnsupportedGraphicsDevice);
}
if (configuration.Debug && configuration.DebugCallback != null)
{
InitializeDebugOutput(configuration);
}
this.Capabilities = new OpenGLGraphicsCapabilities(configuration);
if (Capabilities.SrgbEncodingEnabled && gl.IsFramebufferSrgbAvailable)
{
gl.Enable(gl.GL_FRAMEBUFFER_SRGB);
gl.ThrowIfError();
}
this.maxTextureStages = gl.GetInteger(gl.GL_MAX_TEXTURE_IMAGE_UNITS);
this.textures = new Texture[maxTextureStages];
this.samplerStates = new SamplerState[maxTextureStages];
this.samplerObjects = Capabilities.SupportsIndependentSamplerState ? new OpenGLSamplerObject[maxTextureStages] : null;
this.backBufferRenderTargetUsage = glGraphicsConfiguration.BackBufferRenderTargetUsage;
if (samplerObjects != null)
{
for (int i = 0; i < samplerObjects.Length; i++)
{
samplerObjects[i] = new OpenGLSamplerObject(Ultraviolet);
samplerObjects[i].Bind((uint)i);
}
}
OpenGLState.VerifyCache();
ResetDeviceStates();
}
