bool vsync = true; // Default vsync value is defined as 1 (true) in EGL.
#endregion
#region Constructors
public EglContext(GraphicsMode mode, EglWindowInfo window, IGraphicsContext sharedContext,
int major, int minor, GraphicsContextFlags flags)
{
if (mode == null)
throw new ArgumentNullException("mode");
if (window == null)
throw new ArgumentNullException("window");
EglContext shared = (EglContext)sharedContext;
int dummy_major, dummy_minor;
if (!Egl.Initialize(window.Display, out dummy_major, out dummy_minor))
throw new GraphicsContextException(String.Format("Failed to initialize EGL, error {0}.", Egl.GetError()));
WindowInfo = window;
Mode = new EglGraphicsMode().SelectGraphicsMode(mode.ColorFormat, mode.Depth, mode.Stencil, mode.Samples, mode.AccumulatorFormat, mode.Buffers, mode.Stereo);
if (!Mode.Index.HasValue)
throw new GraphicsModeException("Invalid or unsupported GraphicsMode.");
EGLConfig config = new EGLConfig(mode.Index.Value);
if (window.Surface.Handle == EGLSurface.None.Handle)
window.CreateWindowSurface(config);
int[] attrib_list = new int[] { Egl.CONTEXT_CLIENT_VERSION, major, Egl.NONE };
HandleAsEGLContext = Egl.CreateContext(window.Display, config, shared != null ? shared.HandleAsEGLContext : EGLContext.None, attrib_list);
MakeCurrent(window);
}
public void CreateWindowSurface(EGLConfig config)
{
Surface = Egl.CreateWindowSurface(Display, config, Handle, null);
int error = Egl.GetError();
if (error != Egl.SUCCESS)
throw new GraphicsContextException(String.Format("[Error] Failed to create EGL window surface, error {0}.", error));
}
public static EGLSurface CreateWindowSurface(EGLDisplay dpy, EGLConfig config, IntPtr win, int[] attrib_list)
{
IntPtr ptr = eglCreateWindowSurface(dpy, config, win, attrib_list);
EGLSurface ret = new EGLSurface(ptr);
return(ret);
}
public void CreateWindowSurface(EGLConfig config)
{
Surface = Egl.CreateWindowSurface(Display, config, Handle, null);
int error = Egl.GetError();
if (error != Egl.SUCCESS)
{
throw new GraphicsContextException(String.Format("[Error] Failed to create EGL window surface, error {0}.", error));
}
}
public static EGLContext CreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_context, int[] attrib_list)
{
IntPtr ptr = eglCreateContext(dpy, config, share_context, attrib_list);
if (ptr == IntPtr.Zero)
{
throw new GraphicsContextException(String.Format("Failed to create EGL context, error: {0}.", Egl.GetError()));
}
return(ptr);
}
public GraphicsMode SelectGraphicsMode(ColorFormat color, int depth, int stencil, int samples, ColorFormat accum, int buffers, bool stereo)
{
EGLConfig[] configs = new EGLConfig[1];
int[] attribList = new int[]
{
//Egl.SURFACE_TYPE, Egl.WINDOW_BIT,
Egl.RED_SIZE, color.Red,
Egl.GREEN_SIZE, color.Green,
Egl.BLUE_SIZE, color.Blue,
Egl.ALPHA_SIZE, color.Alpha,
Egl.DEPTH_SIZE, depth > 0 ? depth : 0,
Egl.STENCIL_SIZE, stencil > 0 ? stencil : 0,
//Egl.SAMPLE_BUFFERS, samples > 0 ? 1 : 0,
Egl.SAMPLES, samples > 0 ? samples : 0,
Egl.NONE,
};
// Todo: what if we don't wish to use the default display?
EGLDisplay display = Egl.GetDisplay(EGLNativeDisplayType.Default);
int major, minor;
if (!Egl.Initialize(display, out major, out minor))
throw new GraphicsModeException(String.Format("Failed to initialize display connection, error {0}", Egl.GetError()));
int num_configs;
if (!Egl.GetConfigs(display, null, 0, out num_configs))
{
throw new GraphicsModeException(String.Format("Failed to retrieve GraphicsMode configurations, error {0}", Egl.GetError()));
}
if (!Egl.ChooseConfig(display, attribList, configs, configs.Length, out num_configs))
{
throw new GraphicsModeException(String.Format("Failed to retrieve GraphicsMode, error {0}", Egl.GetError()));
}
// See what we really got
EGLConfig active_config = configs[0];
int r, g, b, a;
Egl.GetConfigAttrib(display, active_config, Egl.RED_SIZE, out r);
Egl.GetConfigAttrib(display, active_config, Egl.GREEN_SIZE, out g);
Egl.GetConfigAttrib(display, active_config, Egl.BLUE_SIZE, out b);
Egl.GetConfigAttrib(display, active_config, Egl.ALPHA_SIZE, out a);
int d, s;
Egl.GetConfigAttrib(display, active_config, Egl.DEPTH_SIZE, out d);
Egl.GetConfigAttrib(display, active_config, Egl.STENCIL_SIZE, out s);
int sample_buffers;
Egl.GetConfigAttrib(display, active_config, Egl.SAMPLES, out sample_buffers);
Egl.GetConfigAttrib(display, active_config, Egl.SAMPLES, out samples);
return new GraphicsMode(active_config.Handle.Value, new ColorFormat(r, g, b, a), d, s, sample_buffers > 0 ? samples : 0, 0, 2, false);
}
bool vsync = true; // Default vsync value is defined as 1 (true) in EGL.
#endregion
#region Constructors
public EglContext(GraphicsMode mode, EglWindowInfo window, IGraphicsContext sharedContext,
int major, int minor, GraphicsContextFlags flags)
{
if (mode == null)
{
throw new ArgumentNullException("mode");
}
if (window == null)
{
throw new ArgumentNullException("window");
}
EglContext shared = (EglContext)sharedContext;
int dummy_major, dummy_minor;
if (!Egl.Initialize(window.Display, out dummy_major, out dummy_minor))
{
throw new GraphicsContextException(String.Format("Failed to initialize EGL, error {0}.", Egl.GetError()));
}
WindowInfo = window;
Mode = new EglGraphicsMode().SelectGraphicsMode(mode.ColorFormat, mode.Depth, mode.Stencil, mode.Samples, mode.AccumulatorFormat, mode.Buffers, mode.Stereo);
if (!Mode.Index.HasValue)
{
throw new GraphicsModeException("Invalid or unsupported GraphicsMode.");
}
EGLConfig config = new EGLConfig(mode.Index.Value);
if (window.Surface.Handle == EGLSurface.None.Handle)
{
window.CreateWindowSurface(config);
}
int[] attrib_list = new int[] { Egl.CONTEXT_CLIENT_VERSION, major, Egl.NONE };
HandleAsEGLContext = Egl.CreateContext(window.Display, config, shared != null ? shared.HandleAsEGLContext : EGLContext.None, attrib_list);
MakeCurrent(window);
}
public static extern bool GetConfigAttrib(EGLDisplay dpy, EGLConfig config, int attribute, out int value);
public static extern bool GetConfigs(EGLDisplay dpy, EGLConfig[] configs, int config_size, out int num_config);
public static extern EGLSurface CreatePlatformPixmapSurfaceEXT(EGLDisplay dpy, EGLConfig config, EGLNativePixmapType native_pixmap, int[] attrib_list);
static extern IntPtr eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_context, int[] attrib_list);
public static extern EGLSurface CreatePbufferFromClientBuffer(EGLDisplay dpy, int buftype, EGLClientBuffer buffer, EGLConfig config, int[] attrib_list);
public static extern EGLSurface CreatePixmapSurface(EGLDisplay dpy, EGLConfig config, EGLNativePixmapType pixmap, int[] attrib_list);
public static extern EGLSurface CreatePbufferSurface(EGLDisplay dpy, EGLConfig config, int[] attrib_list);
public static extern EGLSurface CreatePlatformWindowSurfaceEXT(EGLDisplay dpy, EGLConfig config, EGLNativeWindowType native_window, int[] attrib_list);
static extern IntPtr eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_context, int[] attrib_list);
public static extern EGLSurface CreatePixmapSurface(EGLDisplay dpy, EGLConfig config, EGLNativePixmapType pixmap, int[] attrib_list);
public static extern EGLSurface CreateWindowSurface(EGLDisplay dpy, EGLConfig config, IntPtr win, int[] attrib_list);
public GraphicsMode SelectGraphicsMode(ColorFormat color, int depth, int stencil, int samples, ColorFormat accum, int buffers, bool stereo)
{
EGLConfig[] configs = new EGLConfig[1];
int[] attribList = new int[]
{
//Egl.SURFACE_TYPE, Egl.WINDOW_BIT,
Egl.RED_SIZE, color.Red,
Egl.GREEN_SIZE, color.Green,
Egl.BLUE_SIZE, color.Blue,
Egl.ALPHA_SIZE, color.Alpha,
Egl.DEPTH_SIZE, depth > 0 ? depth : 0,
Egl.STENCIL_SIZE, stencil > 0 ? stencil : 0,
//Egl.SAMPLE_BUFFERS, samples > 0 ? 1 : 0,
Egl.SAMPLES, samples > 0 ? samples : 0,
Egl.NONE,
};
// Todo: what if we don't wish to use the default display?
EGLDisplay display = Egl.GetDisplay(EGLNativeDisplayType.Default);
int major, minor;
if (!Egl.Initialize(display, out major, out minor))
{
throw new GraphicsModeException(String.Format("Failed to initialize display connection, error {0}", Egl.GetError()));
}
int num_configs;
if (!Egl.GetConfigs(display, null, 0, out num_configs))
{
throw new GraphicsModeException(String.Format("Failed to retrieve GraphicsMode configurations, error {0}", Egl.GetError()));
}
if (!Egl.ChooseConfig(display, attribList, configs, configs.Length, out num_configs))
{
throw new GraphicsModeException(String.Format("Failed to retrieve GraphicsMode, error {0}", Egl.GetError()));
}
// See what we really got
EGLConfig active_config = configs[0];
int r, g, b, a;
Egl.GetConfigAttrib(display, active_config, Egl.RED_SIZE, out r);
Egl.GetConfigAttrib(display, active_config, Egl.GREEN_SIZE, out g);
Egl.GetConfigAttrib(display, active_config, Egl.BLUE_SIZE, out b);
Egl.GetConfigAttrib(display, active_config, Egl.ALPHA_SIZE, out a);
int d, s;
Egl.GetConfigAttrib(display, active_config, Egl.DEPTH_SIZE, out d);
Egl.GetConfigAttrib(display, active_config, Egl.STENCIL_SIZE, out s);
int sample_buffers;
Egl.GetConfigAttrib(display, active_config, Egl.SAMPLES, out sample_buffers);
Egl.GetConfigAttrib(display, active_config, Egl.SAMPLES, out samples);
return(new GraphicsMode(active_config.Handle.Value, new ColorFormat(r, g, b, a), d, s, sample_buffers > 0 ? samples : 0, 0, 2, false));
}
public static extern EGLSurface CreatePlatformPixmapSurfaceEXT(EGLDisplay dpy, EGLConfig config, EGLNativePixmapType native_pixmap, int[] attrib_list);
public static extern EGLSurface CreatePlatformWindowSurfaceEXT(EGLDisplay dpy, EGLConfig config, EGLNativeWindowType native_window, int[] attrib_list);
public static extern EGLSurface CreatePbufferSurface(EGLDisplay dpy, EGLConfig config, int[] attrib_list);
public static EGLSurface CreateWindowSurface(EGLDisplay dpy, EGLConfig config, IntPtr win, int[] attrib_list)
{
IntPtr ptr = eglCreateWindowSurface(dpy, config, win, attrib_list);
EGLSurface ret = new EGLSurface(ptr);
return ret;
}
public static extern EGLSurface CreatePbufferFromClientBuffer(EGLDisplay dpy, int buftype, EGLClientBuffer buffer, EGLConfig config, int[] attrib_list);
public static extern bool GetConfigAttrib(EGLDisplay dpy, EGLConfig config, int attribute, out int value);
public static EGLContext CreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_context, int[] attrib_list)
{
IntPtr ptr = eglCreateContext(dpy, config, share_context, attrib_list);
if (ptr == IntPtr.Zero)
throw new GraphicsContextException(String.Format("Failed to create EGL context, error: {0}.", Egl.GetError()));
return ptr;
}
public static extern EGLSurface CreateWindowSurface(EGLDisplay dpy, EGLConfig config, IntPtr win, int[] attrib_list);