/**
* Checks for EGL errors.
*/
private void checkEglError(String msg)
{
int error;
if ((error = EGL14.EglGetError()) != EGL14.EglSuccess)
{
throw new RuntimeException(msg + ": EGL error: 0x" + Integer.ToHexString(error));
}
}
public void DetachCurrent()
{
lock (EglBase.Lock)
{
if (!EGL14.EglMakeCurrent(_eglDisplay, EGL14.EglNoSurface, EGL14.EglNoSurface, EGL14.EglNoContext))
{
throw new RuntimeException("eglDetachCurrent failed: 0x" +
Integer.ToHexString(EGL14.EglGetError()));
}
}
}
/**
* Checks for EGL errors.
*/
private void CheckEglError(string msg)
{
bool failed = false;
int error;
while ((error = EGL14.EglGetError()) != EGL14.EglSuccess)
{
Log.Error(TAG, msg + ": EGL error: 0x" + Integer.ToHexString(error));
failed = true;
}
if (failed)
{
throw new RuntimeException("EGL error encountered (see log)");
}
}
public void CreatePbufferSurface(int width, int height)
{
CheckIsNotReleased();
if (_eglSurface != EGL14.EglNoSurface)
{
throw new RuntimeException("Already has an EGLSurface");
}
var surfaceAttribs = new[] { 12375, width, 12374, height, 12344 };
_eglSurface = EGL14.EglCreatePbufferSurface(_eglDisplay, _eglConfig, surfaceAttribs, 0);
if (_eglSurface == EGL14.EglNoSurface)
{
throw new RuntimeException("Failed to create pixel buffer surface with size " + width + "x" +
height + ": 0x" + Integer.ToHexString(EGL14.EglGetError()));
}
}
public void MakeCurrent()
{
CheckIsNotReleased();
if (_eglSurface == EGL14.EglNoSurface)
{
throw new RuntimeException("No EGLSurface - can't make current");
}
lock (EglBase.Lock)
{
if (!EGL14.EglMakeCurrent(_eglDisplay, _eglSurface, _eglSurface, _eglContext))
{
throw new RuntimeException("eglMakeCurrent failed: 0x" +
Integer.ToHexString(EGL14.EglGetError()));
}
}
}
private void CreateSurfaceInternal(Java.Lang.Object surface)
{
CheckIsNotReleased();
if (_eglSurface != EGL14.EglNoSurface)
{
throw new RuntimeException("Already has an EGLSurface");
}
var surfaceAttribs = new[] { 12344 };
_eglSurface = EGL14.EglCreateWindowSurface(_eglDisplay, _eglConfig, surface, surfaceAttribs, 0);
if (_eglSurface == EGL14.EglNoSurface)
{
throw new RuntimeException("Failed to create window surface: 0x" +
Integer.ToHexString(EGL14.EglGetError()));
}
}
private static EGLDisplay GetEglDisplay()
{
var eglDisplay = EGL14.EglGetDisplay(0);
if (eglDisplay == EGL14.EglNoDisplay)
{
throw new RuntimeException("Unable to get EGL14 display: 0x" +
Integer.ToHexString(EGL14.EglGetError()));
}
var version = new int[2];
if (!EGL14.EglInitialize(eglDisplay, version, 0, version, 1))
{
throw new RuntimeException("Unable to initialize EGL14: 0x" +
Integer.ToHexString(EGL14.EglGetError()));
}
return(eglDisplay);
}
private static EGLConfig GetEglConfig(EGLDisplay eglDisplay, int[] configAttributes)
{
var configs = new EGLConfig[1];
var numConfigs = new int[1];
if (!EGL14.EglChooseConfig(eglDisplay, configAttributes, 0, configs, 0, configs.Length, numConfigs, 0))
{
throw new RuntimeException("eglChooseConfig failed: 0x" + Integer.ToHexString(EGL14.EglGetError()));
}
if (numConfigs[0] <= 0)
{
throw new RuntimeException("Unable to find any matching EGL config");
}
EGLConfig eglConfig = configs[0];
if (eglConfig == null)
{
throw new RuntimeException("eglChooseConfig returned null");
}
return(eglConfig);
}
private void CheckEglError()
{
Debug.Assert(EGL14.EglGetError() == EGL14.EglSuccess);
}