int GetAttrib (IEGL10 egl, EGLDisplay display, EGLConfig config, int attrib)
{
int[] ret = new int [1];
try {
egl.EglGetConfigAttrib (display, config, attrib, ret);
} catch (Exception e) {
Log.Warn ("AndroidGraphicsMode", "EglGetConfigAttrib {0} threw exception {1}", attrib, e);
}
return ret[0];
}
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()));
}
}
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 static EglException GenerateException (string msg, IEGL10 egl, int? error)
{
if (egl == null)
return new EglException (msg);
error = error ?? egl.EglGetError ();
if (error == EGL10.EglSuccess)
return new EglException (msg);
return new EglException (String.Format ("{0} failed with error {1} (0x{1:x})", msg, error.Value));
}
private void CreateEGLContext()
{
ExEnLog.WriteLine("ExEnAndroidSurfaceView.CreateEGLContext Begin");
// Assumes lockObject is locked
lostEglContext = false;
egl = EGLContext.EGL.JavaCast<IEGL10>();
eglDisplay = egl.EglGetDisplay(EGL10Consts.EglDefaultDisplay);
if(eglDisplay == EGL10Consts.EglNoDisplay)
throw new ExEnSurfaceException("Could not get EGL display");
int[] version = new int[2];
if(!egl.EglInitialize(eglDisplay, version))
throw new ExEnSurfaceException(AddEGLError("Could not initialize EGL display"));
ExEnLog.WriteLine("EGL Version: " + version[0] + "." + version[1]);
// TODO: allow GraphicsDeviceManager to specify a frame buffer configuration
// TODO: test this configuration works on many devices:
int[] configAttribs = new int[] {
//EGL10Consts.EglRedSize, 5,
//EGL10Consts.EglGreenSize, 6,
//EGL10Consts.EglBlueSize, 5,
//EGL10Consts.EglAlphaSize, 0,
//EGL10Consts.EglDepthSize, 4,
//EGL10Consts.EglStencilSize, 0,
EGL10Consts.EglNone };
EGLConfig[] configs = new EGLConfig[1];
int[] numConfigs = new int[1];
if(!egl.EglChooseConfig(eglDisplay, configAttribs, configs, 1, numConfigs))
throw new ExEnSurfaceException(AddEGLError("Could not get EGL config"));
if(numConfigs[0] == 0)
throw new ExEnSurfaceException("No valid EGL configs found");
eglConfig = configs[0];
const int EglContextClientVersion = 0x3098;
int[] contextAttribs = new int[] { EglContextClientVersion, 1, EGL10Consts.EglNone };
eglContext = egl.EglCreateContext(eglDisplay, eglConfig, EGL10Consts.EglNoContext, contextAttribs);
if(eglContext == null || eglContext == EGL10Consts.EglNoContext)
{
eglContext = null;
throw new ExEnSurfaceException(AddEGLError("Could not create EGL context"));
}
eglContextAvailable = true;
ExEnLog.WriteLine("ExEnAndroidSurfaceView.CreateEGLContext End");
}
// 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();
}
static int GetAttribute(EGLConfig config, IEGL10 egl, EGLDisplay eglDisplay, int attribute)
{
int[] data = new int[1];
egl.EglGetConfigAttrib(eglDisplay, config, EGL11.EglRedSize, data);
return(data[0]);
}
public void destroyContext(IEGL10 egl, EGLDisplay display, EGLContext context)
{
egl.EglDestroyContext(display, context);
}
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()));
}
}