GL createEglSurface(Surface surface) throws Surface.OutOfResourcesException {
// Check preconditions.
if (sEgl == null) {
throw new RuntimeException("egl not initialized");
}
if (sEglDisplay == null) {
throw new RuntimeException("eglDisplay not initialized");
}
if (sEglConfig == null) {
throw new RuntimeException("eglConfig not initialized");
}
if (Thread.currentThread() != mEglThread) {
throw new IllegalStateException(
"HardwareRenderer cannot be used " + "from multiple threads");
}
// In case we need to destroy an existing surface
destroySurface();
// Create an EGL surface we can render into.
if (!createSurface(surface)) {
return null;
}
initCaches();
return mEglContext.getGL();
}
/** Some initialization of the OpenGL stuff (that I don't understand...) */
protected void init() {
// Much of this code is from GLSurfaceView in the Google API Demos.
// I encourage those interested to look there for documentation.
egl = (EGL10) EGLContext.getEGL();
dpy = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
int[] version = new int[2];
egl.eglInitialize(dpy, version);
int[] configSpec = {
EGL10.EGL_RED_SIZE, 5,
EGL10.EGL_GREEN_SIZE, 6,
EGL10.EGL_BLUE_SIZE, 5,
EGL10.EGL_DEPTH_SIZE, 8,
EGL10.EGL_NONE
};
EGLConfig[] configs = new EGLConfig[1];
int[] num_config = new int[1];
egl.eglChooseConfig(dpy, configSpec, configs, 1, num_config);
EGLConfig config = configs[0];
eglContext = egl.eglCreateContext(dpy, config, EGL10.EGL_NO_CONTEXT, null);
surface = egl.eglCreateWindowSurface(dpy, config, sHolder, null);
egl.eglMakeCurrent(dpy, surface, surface, eglContext);
gl = (GL10) eglContext.getGL();
// Load the buffer and stuff
gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
gl.glClearDepthf(1.0f);
gl.glVertexPointer(3, GL10.GL_FLOAT, 0, cubeBuff);
gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, texBuff);
gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
gl.glEnable(GL10.GL_TEXTURE_2D);
// Resize... whatever?
gl.glMatrixMode(GL10.GL_PROJECTION);
gl.glLoadIdentity();
gl.glViewport(0, 0, width, height);
GLU.gluPerspective(gl, 45.0f, ((float) width) / height, 1f, 100f);
gl.glMatrixMode(GL10.GL_MODELVIEW);
gl.glLoadIdentity();
GLU.gluLookAt(gl, 0, 0, 5.5f, 0, 0, 0, 0, 1, 0);
gl.glNormal3f(0, 0, 1);
}
public void initgl() {
cleanupgl();
// Create new surface. Must succeed.
surface = egl.eglCreateWindowSurface(display, config, getHolder(), null);
if (null == surface) {
throw new RuntimeException("eglCreateWindowSurface");
}
// Bind the rendering context to the surface.
if (!egl.eglMakeCurrent(display, surface, surface, ctxt)) {
throw new RuntimeException("eglMakeCurrent");
}
gl = (GL10) ctxt.getGL();
}
private void createSurface() {
hasSurface = false;
if (surface != null) {
egl.eglMakeCurrent(display, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_CONTEXT);
egl.eglDestroySurface(display, surface);
}
surface = egl.eglCreateWindowSurface(display, config, surfaceHolder, null);
egl.eglMakeCurrent(display, surface, surface, eglContext);
gl = eglContext.getGL();
hasSurface = true;
}
/*
* React to the creation of a new surface by creating and returning an OpenGL interface that renders to that
* surface.
*/
public GL createSurface(SurfaceHolder holder) {
/*
* The window size has changed, so we need to create a new surface.
*/
if (mEglSurface != null && mEglSurface != EGL10.EGL_NO_SURFACE) {
/*
* Unbind and destroy the old EGL surface, if there is one.
*/
mEgl.eglMakeCurrent(
mEglDisplay, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_CONTEXT);
mEGLWindowSurfaceFactory.destroySurface(mEgl, mEglDisplay, mEglSurface);
}
/*
* Create an EGL surface we can render into.
*/
mEglSurface =
mEGLWindowSurfaceFactory.createWindowSurface(mEgl, mEglDisplay, mEglConfig, holder);
if (mEglSurface == null || mEglSurface == EGL10.EGL_NO_SURFACE) {
throw new RuntimeException("createWindowSurface failed");
}
/*
* Before we can issue GL commands, we need to make sure the context is current and bound to a surface.
*/
if (!mEgl.eglMakeCurrent(mEglDisplay, mEglSurface, mEglSurface, mEglContext)) {
throw new RuntimeException("eglMakeCurrent failed.");
}
GL gl = mEglContext.getGL();
if (mGLWrapper != null) {
gl = mGLWrapper.wrap(gl);
}
/*
* if ((mDebugFlags & (DEBUG_CHECK_GL_ERROR | DEBUG_LOG_GL_CALLS))!= 0) { int configFlags = 0; Writer log =
* null; if ((mDebugFlags & DEBUG_CHECK_GL_ERROR) != 0) { configFlags |= GLDebugHelper.CONFIG_CHECK_GL_ERROR; }
* if ((mDebugFlags & DEBUG_LOG_GL_CALLS) != 0) { log = new LogWriter(); } gl = GLDebugHelper.wrap(gl,
* configFlags, log); }
*/
return gl;
}
public void run() {
// Much of this code is from GLSurfaceView in the Google API Demos.
// I encourage those interested to look there for documentation.
EGL10 egl = (EGL10) EGLContext.getEGL();
EGLDisplay dpy = egl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
int[] version = new int[2];
egl.eglInitialize(dpy, version);
int[] configSpec = {
EGL10.EGL_RED_SIZE, 5,
EGL10.EGL_GREEN_SIZE, 6,
EGL10.EGL_BLUE_SIZE, 5,
EGL10.EGL_DEPTH_SIZE, 16,
EGL10.EGL_NONE
};
EGLConfig[] configs = new EGLConfig[1];
int[] num_config = new int[1];
egl.eglChooseConfig(dpy, configSpec, configs, 1, num_config);
EGLConfig config = configs[0];
EGLContext context = egl.eglCreateContext(dpy, config, EGL10.EGL_NO_CONTEXT, null);
EGLSurface surface = egl.eglCreateWindowSurface(dpy, config, sHolder, null);
egl.eglMakeCurrent(dpy, surface, surface, context);
GL10 gl = (GL10) context.getGL();
init(gl);
int delta = -1;
if (fps > 0) {
delta = 1000 / fps;
}
long time = System.currentTimeMillis();
running = true;
while (running) {
int w, h;
synchronized (this) {
w = width;
h = height;
}
if (System.currentTimeMillis() - time < delta) {
try {
Thread.sleep(System.currentTimeMillis() - time);
} catch (InterruptedException ex) {
}
}
drawFrame(gl, w, h);
egl.eglSwapBuffers(dpy, surface);
if (egl.eglGetError() == EGL11.EGL_CONTEXT_LOST) {
Context c = getContext();
if (c instanceof Activity) {
((Activity) c).finish();
}
}
time = System.currentTimeMillis();
}
egl.eglMakeCurrent(dpy, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_CONTEXT);
egl.eglDestroySurface(dpy, surface);
egl.eglDestroyContext(dpy, context);
egl.eglTerminate(dpy);
}
