public static extern bool QueryContext(EGLDisplay dpy, EGLContext ctx, int attribute, out int value);
public static extern bool MakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx);
public static extern bool DestroyContext(EGLDisplay dpy, EGLContext ctx);
public static EGLContext CreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_context, int[] attrib_list)
{
IntPtr ptr = eglCreateContext(dpy, config, share_context, attrib_list);
EGLContext ret = new EGLContext();
ret.Pointer = ptr;
return ret;
}
static extern IntPtr eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_context, int[] attrib_list);
void InitializeOpenGL()
{
ourDisplay = egl.GetDisplay(new EGLNativeDisplayType(IntPtr.Zero));
int major, minor;
bool ret = egl.Initialize(ourDisplay, out major, out minor);
EGLConfig[] configs = new EGLConfig[10];
int[] attribList = new int[]
{
egl.EGL_RED_SIZE, 5,
egl.EGL_GREEN_SIZE, 6,
egl.EGL_BLUE_SIZE, 5,
egl.EGL_DEPTH_SIZE, 16 ,
egl.EGL_SURFACE_TYPE, egl.EGL_WINDOW_BIT,
egl.EGL_STENCIL_SIZE, egl.EGL_DONT_CARE,
egl.EGL_NONE, egl.EGL_NONE
};
int numConfig;
if (!egl.ChooseConfig(ourDisplay, attribList, configs, configs.Length, out numConfig) || numConfig < 1)
throw new InvalidOperationException("Unable to choose config.");
ourConfig = configs[0];
ourContext = egl.CreateContext(ourDisplay, ourConfig, EGLContext.None, null);
}