protected virtual void Dispose(bool disposing)
{
if (!disposed)
{
if (disposing)
{
DestroyContext();
window = null;
disposed = true;
}
}
}
private void Init()
{
// default
ContextRenderingApi = GLVersion.ES1;
mHolder = Holder;
RenderThreadRestartRetries = 3;
// Add callback to get the SurfaceCreated etc events
mHolder.AddCallback(this);
// Force the SurfaceType to be Gpu to API_11 and earlier
// it is ignored in later API's
mHolder.SetType(SurfaceType.Gpu);
windowInfo = new AndroidWindow(mHolder);
pauseSignal = new ManualResetEvent(true);
}
internal AndroidAsyncGraphicsContext(AndroidGraphicsContext graphicsContext, AndroidWindow androidWindow, int versionMajor)
{
egl = EGLContext.EGL.JavaCast<IEGL10>();
var pbufferAttribList = new[]
{
EGL10.EglWidth, 1,
EGL10.EglHeight, 1,
EGL10.EglNone
};
EGLDisplay = androidWindow.Display;
var androidGraphicsContext = graphicsContext;
var config = androidGraphicsContext.EGLConfig;
var attribList = new[]
{
EGL10.EglSurfaceType, EGL10.EglPbufferBit,
EGL10.EglRenderableType, 4, // (opengl es 2.0)
EGL10.EglRedSize, graphicsContext.GraphicsMode.ColorFormat.Red,
EGL10.EglGreenSize, graphicsContext.GraphicsMode.ColorFormat.Green,
EGL10.EglBlueSize, graphicsContext.GraphicsMode.ColorFormat.Blue,
EGL10.EglAlphaSize, graphicsContext.GraphicsMode.ColorFormat.Alpha,
EGL10.EglDepthSize, graphicsContext.GraphicsMode.Depth,
EGL10.EglStencilSize, graphicsContext.GraphicsMode.Stencil,
//Egl.SAMPLE_BUFFERS, samples > 0 ? 1 : 0,
EGL10.EglSamples, 0,
EGL10.EglNone,
};
// first ask the number of config available
var numConfig = new int[1];
if (!egl.EglChooseConfig(EGLDisplay, attribList, null, 0, numConfig))
{
throw new InvalidOperationException(string.Format("EglChooseConfig {0:x}", egl.EglGetError()));
}
// retrieve the available configs
var configs = new EGLConfig[numConfig[0]];
if (!egl.EglChooseConfig(EGLDisplay, attribList, configs, configs.Length, numConfig))
{
throw new InvalidOperationException(string.Format("EglChooseConfig {0:x}", egl.EglGetError()));
}
// choose the best config
EGLConfig = ChooseConfigEGL(configs);
// create the surface
EGLSurface = egl.EglCreatePbufferSurface(EGLDisplay, EGLConfig, pbufferAttribList);
if (EGLSurface == EGL10.EglNoSurface)
{
throw new InvalidOperationException(string.Format("EglCreatePBufferSurface {0:x}", egl.EglGetError()));
}
// 0x3098 is EGL_CONTEXT_CLIENT_VERSION
var attribList3 = new[] { 0x3098, versionMajor, EGL10.EglNone };
EGLContext = egl.EglCreateContext(EGLDisplay, config, androidGraphicsContext.EGLContext, attribList3);
if (EGLContext == EGL10.EglNoContext)
{
throw new InvalidOperationException(string.Format("EglCreateContext {0:x}", egl.EglGetError()));
}
}
protected virtual void Dispose(bool disposing)
{
if (!disposed)
{
if (disposing) {
DestroyContext ();
window = null;
disposed = true;
}
}
}
void Init (GraphicsMode mode, IWindowInfo win, IGraphicsContext sharedContext,
int major, int minor, GraphicsContextFlags flags)
{
window = win as AndroidWindow;
if (window == null)
throw new ArgumentException ("win");
AndroidGraphicsContext shared = sharedContext as AndroidGraphicsContext;
egl = EGLContext.EGL.JavaCast<IEGL10> ();
window.InitializeDisplay ();
if (mode == null)
mode = new GraphicsMode ();
if (mode is AndroidGraphicsMode) {
GraphicsMode = mode;
} else {
GraphicsMode = new AndroidGraphicsMode (window.Display, major, mode);
}
if (shared != null && !PBufferSupported)
throw new EglException ("Multiple Context's are not supported by this device");
if (Mode.Config == null)
Mode.Initialize (window.Display, major);
/*
* Create an OpenGL ES context. We want to do this as rarely as possible, an
* OpenGL context is a somewhat heavy object.
*/
int EglContextClientVersion = 0x3098;
int EglContextMinorVersion = 0x30fb;
int[] attribList = null;
if (major >= 2) {
string extensions = egl.EglQueryString (window.Display, Egl.Egl.EXTENSIONS);
if (minor > 0 && !string.IsNullOrEmpty (extensions) && extensions.Contains ("EGL_KHR_create_context")) {
attribList = new int [] { EglContextClientVersion, major,
EglContextMinorVersion, minor,
EGL10.EglNone
};
} else {
attribList = new int [] { EglContextClientVersion, major,
EGL10.EglNone
};
}
}
EGLContext = egl.EglCreateContext (window.Display,
EGLConfig,
shared != null && shared.EGLContext != null ? shared.EGLContext : EGL10.EglNoContext,
attribList);
if (EGLContext == EGL10.EglNoContext)
throw EglException.GenerateException ("EglCreateContext == EGL10.EglNoContext", egl, null);
if (shared != null && shared.EGLContext != null) {
egl.EglMakeCurrent (window.Display, EGL10.EglNoSurface, EGL10.EglNoSurface, EGL10.EglNoContext);
int[] pbufferAttribList = new int [] { EGL10.EglWidth, 64, EGL10.EglHeight, 64, EGL10.EglNone };
surface = window.CreatePBufferSurface (EGLConfig, pbufferAttribList);
if (surface == EGL10.EglNoSurface)
throw new EglException ("Could not create PBuffer for shared context!");
}
}
public override IGraphicsContext CreateGLContext(ContextHandle handle, IWindowInfo window, IGraphicsContext shareContext, bool directRendering, int major, int minor, GraphicsContextFlags flags)
{
AndroidWindow android_win = (AndroidWindow)window;
return(new Android.AndroidGraphicsContext(handle, android_win.CreateEglWindowInfo(), shareContext, major, minor, flags));
}
void Init(GraphicsMode mode, IWindowInfo win, IGraphicsContext sharedContext,
int major, int minor, GraphicsContextFlags flags)
{
window = win as AndroidWindow;
if (window == null)
{
throw new ArgumentException("win");
}
AndroidGraphicsContext shared = sharedContext as AndroidGraphicsContext;
egl = EGLContext.EGL.JavaCast <IEGL10> ();
window.InitializeDisplay();
if (mode == null)
{
mode = new GraphicsMode();
}
if (mode is AndroidGraphicsMode)
{
GraphicsMode = mode;
}
else
{
GraphicsMode = new AndroidGraphicsMode(window.Display, major, mode);
}
if (shared != null && !PBufferSupported)
{
throw new EglException("Multiple Context's are not supported by this device");
}
if (Mode.Config == null)
{
Mode.Initialize(window.Display, major);
}
/*
* Create an OpenGL ES context. We want to do this as rarely as possible, an
* OpenGL context is a somewhat heavy object.
*/
int EglContextClientVersion = 0x3098;
int EglContextMinorVersion = 0x30fb;
int[] attribList = null;
if (major >= 2)
{
string extensions = egl.EglQueryString(window.Display, Egl.Egl.EXTENSIONS);
if (minor > 0 && !string.IsNullOrEmpty(extensions) && extensions.Contains("EGL_KHR_create_context"))
{
attribList = new int [] { EglContextClientVersion, major,
EglContextMinorVersion, minor,
EGL10.EglNone };
}
else
{
attribList = new int [] { EglContextClientVersion, major,
EGL10.EglNone };
}
}
EGLContext = egl.EglCreateContext(window.Display,
EGLConfig,
shared != null && shared.EGLContext != null ? shared.EGLContext : EGL10.EglNoContext,
attribList);
if (EGLContext == EGL10.EglNoContext)
{
throw EglException.GenerateException("EglCreateContext == EGL10.EglNoContext", egl, null);
}
if (shared != null && shared.EGLContext != null)
{
egl.EglMakeCurrent(window.Display, EGL10.EglNoSurface, EGL10.EglNoSurface, EGL10.EglNoContext);
int[] pbufferAttribList = new int [] { EGL10.EglWidth, 64, EGL10.EglHeight, 64, EGL10.EglNone };
surface = window.CreatePBufferSurface(EGLConfig, pbufferAttribList);
if (surface == EGL10.EglNoSurface)
{
throw new EglException("Could not create PBuffer for shared context!");
}
}
}
// This method is called everytime the context needs
// to be recreated. Use it to set any egl-specific settings
// prior to context creation
protected override void CreateFrameBuffer ()
{
IEGL10 egl = EGLContext.EGL.JavaCast<IEGL10> ();
var win = new AndroidWindow (Holder);
win.InitializeDisplay ();
int[] num_configs = new int[1];
if (!egl.EglGetConfigs (win.Display, null, 0, num_configs)) {
throw EglException.GenerateException ("Failed to retrieve GraphicsMode configurations", egl);
}
EGLConfig[] configs = new EGLConfig[num_configs[0]];
if (!egl.EglGetConfigs (win.Display, configs, num_configs[0], num_configs)) {
throw EglException.GenerateException ("Failed to retrieve GraphicsMode configurations", egl);
}
Log.Verbose ("GLDiag", "Testing {0} graphics configurations", num_configs[0]);
Dictionary<IntPtr, AndroidGraphicsMode> validModes = new Dictionary<IntPtr, AndroidGraphicsMode> ();
int count = 0;
foreach (var c in configs) {
var r = GetAttrib (egl, win.Display, c, EGL11.EglRedSize);
var g = GetAttrib (egl, win.Display, c, EGL11.EglGreenSize);
var b = GetAttrib (egl, win.Display, c, EGL11.EglBlueSize);
var a = GetAttrib (egl, win.Display, c, EGL11.EglAlphaSize);
var depth = GetAttrib (egl, win.Display, c, EGL11.EglDepthSize);
var stencil = GetAttrib (egl, win.Display, c, EGL11.EglStencilSize);
var s = GetAttrib (egl, win.Display, c, EGL11.EglSampleBuffers);
var samples = GetAttrib (egl, win.Display, c, EGL11.EglSamples);
Log.Verbose ("AndroidGraphicsMode", "Testing graphics mode: {8} red {0} green {1} blue {2} alpha {3} ({4}) depth {5} stencil {6} samples {7}",
r, g, b,
a, r+g+b+a, depth,
stencil, samples, count++);
try {
win.CreateSurface (c);
win.DestroySurface ();
validModes.Add (c.Handle, new AndroidGraphicsMode (r+g+b+a, depth, stencil, s > 0 ? samples : 0, 2, true));
Log.Verbose ("AndroidGraphicsMode", "Graphics mode {0} valid", count-1);
} catch {
Log.Verbose ("AndroidGraphicsMode", "Graphics mode {0} invalid", count-1);
}
}
win.TerminateDisplay ();
if (validModes.Count == 0)
throw new EglException ("There is no valid graphics mode, aborting");
IntPtr key = IntPtr.Zero;
foreach (var k in validModes) {
if (key == IntPtr.Zero)
key = k.Key;
var a = k.Value;
Log.Verbose ("AndroidGraphicsMode", "Valid graphics mode: {9} red {0} green {1} blue {2} alpha {3} ({4}) depth {5} stencil {6} samples {7} buffers {8}",
a.ColorFormat.Red, a.ColorFormat.Green, a.ColorFormat.Blue,
a.ColorFormat.Alpha, a.ColorFormat.BitsPerPixel, a.Depth,
a.Stencil, a.Samples, a.Buffers, (int)k.Key);
}
GraphicsMode = validModes[key];
// if you don't call this, the context won't be created
base.CreateFrameBuffer ();
}