// EGL buffer flip
public void flipEGL() {
try {
EGL10 egl = (EGL10) EGLContext.getEGL();
egl.eglWaitNative(EGL10.EGL_NATIVE_RENDERABLE, null);
// drawing here
egl.eglWaitGL();
egl.eglSwapBuffers(mEGLDisplay, mEGLSurface);
} catch (Exception e) {
Log.v("SDL", "flipEGL(): " + e);
for (StackTraceElement s : e.getStackTrace()) {
Log.v("SDL", s.toString());
}
}
}
// EGL functions
public boolean initEGL(int majorVersion, int minorVersion) {
Log.v("SDL", "Starting up OpenGL ES " + majorVersion + "." + minorVersion);
try {
EGL10 egl = (EGL10) EGLContext.getEGL();
EGLDisplay dpy = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
int[] version = new int[2];
egl.eglInitialize(dpy, version);
int EGL_OPENGL_ES_BIT = 1;
int EGL_OPENGL_ES2_BIT = 4;
int renderableType = 0;
if (majorVersion == 2) {
renderableType = EGL_OPENGL_ES2_BIT;
} else if (majorVersion == 1) {
renderableType = EGL_OPENGL_ES_BIT;
}
int[] configSpec = {
// EGL10.EGL_DEPTH_SIZE, 16,
EGL10.EGL_RENDERABLE_TYPE, renderableType, EGL10.EGL_NONE
};
EGLConfig[] configs = new EGLConfig[1];
int[] num_config = new int[1];
if (!egl.eglChooseConfig(dpy, configSpec, configs, 1, num_config) || num_config[0] == 0) {
Log.e("SDL", "No EGL config available");
return false;
}
EGLConfig config = configs[0];
EGLContext ctx = egl.eglCreateContext(dpy, config, EGL10.EGL_NO_CONTEXT, null);
if (ctx == EGL10.EGL_NO_CONTEXT) {
Log.e("SDL", "Couldn't create context");
return false;
}
EGLSurface surface = egl.eglCreateWindowSurface(dpy, config, this, null);
if (surface == EGL10.EGL_NO_SURFACE) {
Log.e("SDL", "Couldn't create surface");
return false;
}
if (!egl.eglMakeCurrent(dpy, surface, surface, ctx)) {
Log.e("SDL", "Couldn't make context current");
return false;
}
mEGLContext = ctx;
mEGLDisplay = dpy;
mEGLSurface = surface;
} catch (Exception e) {
Log.v("SDL", e + "");
for (StackTraceElement s : e.getStackTrace()) {
Log.v("SDL", s.toString());
}
}
return true;
}