Java Code Examples for android.opengl.EGL14#eglMakeCurrent()

/**
 * change context to draw this window surface
 * @return
 */
private boolean makeCurrent(EGLSurface surface) {
	if (DEBUG) Log.v(TAG, "makeCurrent:");
       if (mEglDisplay == null) {
           if (DEBUG) Log.d(TAG, "makeCurrent:eglDisplay not initialized");
       }
       if (surface == null || surface == EGL14.EGL_NO_SURFACE) {
           int error = EGL14.eglGetError();
           if (error == EGL14.EGL_BAD_NATIVE_WINDOW) {
               Log.e(TAG, "makeCurrent:returned EGL_BAD_NATIVE_WINDOW.");
           }
           return false;
       }
       // attach EGL renderring context to specific EGL window surface
       if (!EGL14.eglMakeCurrent(mEglDisplay, surface, surface, mEglContext)) {
           Log.w("TAG", "eglMakeCurrent" + EGL14.eglGetError());
           return false;
       }
       return true;
}
 

/**
 * Discard all resources held by this class, notably the EGL context. Also releases the Surface that was passed to our constructor.
 */
public void release() {
   if ( EGL14.eglGetCurrentContext().equals( mEGLContext ) ) {
      // Clear the current context and surface to ensure they are discarded immediately.
      EGL14.eglMakeCurrent( mEGLDisplay, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_CONTEXT );
   }
   EGL14.eglDestroySurface( mEGLDisplay, mEGLSurface );
   EGL14.eglDestroyContext( mEGLDisplay, mEGLContext );
   // EGL14.eglTerminate(mEGLDisplay);
   mSurface.release();
   // null everything out so future attempts to use this object will cause an NPE
   mEGLDisplay = null;
   mEGLContext = null;
   mEGLSurface = null;
   mSurface = null;
}
 

/**
 * Discards all resources held by this class, notably the EGL context.  This must be
 * called from the thread where the context was created.
 * <p>
 * On completion, no context will be current.
 */
public void release() {
    if (mEGLDisplay != EGL14.EGL_NO_DISPLAY) {
        // Android is unusual in that it uses a reference-counted EGLDisplay.  So for
        // every eglInitialize() we need an eglTerminate().
        EGL14.eglMakeCurrent(mEGLDisplay, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_SURFACE,
                EGL14.EGL_NO_CONTEXT);
        EGL14.eglDestroyContext(mEGLDisplay, mEGLContext);
        EGL14.eglReleaseThread();
        EGL14.eglTerminate(mEGLDisplay);
    }

    mEGLDisplay = EGL14.EGL_NO_DISPLAY;
    mEGLContext = EGL14.EGL_NO_CONTEXT;
    mEGLConfig = null;
}
 

/**
 * Discards all resources held by this class, notably the EGL context.  Also releases the
 * Surface that was passed to our constructor.
 */
public void release() {
    if (mEGLDisplay != EGL14.EGL_NO_DISPLAY) {
        EGL14.eglMakeCurrent(mEGLDisplay, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_SURFACE,
                EGL14.EGL_NO_CONTEXT);
        EGL14.eglDestroySurface(mEGLDisplay, mEGLSurface);
        EGL14.eglDestroyContext(mEGLDisplay, mEGLContext);
        EGL14.eglReleaseThread();
        EGL14.eglTerminate(mEGLDisplay);
    }

    mSurface.release();

    mEGLDisplay = EGL14.EGL_NO_DISPLAY;
    mEGLContext = EGL14.EGL_NO_CONTEXT;
    mEGLSurface = EGL14.EGL_NO_SURFACE;

    mSurface = null;
}
 

public boolean createGLESWithSurface(EGLConfigAttrs attrs,EGLContextAttrs ctxAttrs,Object surface){
    EGLConfig config=getConfig(attrs.surfaceType(EGL14.EGL_WINDOW_BIT).makeDefault(true));
    if(config==null){
        log("getConfig failed : "+EGL14.eglGetError());
        return false;
    }
    mEGLContext=createContext(config,EGL14.EGL_NO_CONTEXT,ctxAttrs.makeDefault(true));
    if(mEGLContext==EGL14.EGL_NO_CONTEXT){
        log("createContext failed : "+EGL14.eglGetError());
        return false;
    }
    mEGLSurface=createWindowSurface(surface);
    if(mEGLSurface==EGL14.EGL_NO_SURFACE){
        log("createWindowSurface failed : "+EGL14.eglGetError());
        return false;
    }
    if(!EGL14.eglMakeCurrent(mEGLDisplay,mEGLSurface,mEGLSurface,mEGLContext)){
        log("eglMakeCurrent failed : "+EGL14.eglGetError());
        return false;
    }
    return true;
}
 

@Override
public void makeCurrent() {
  checkIsNotReleased();
  if (eglSurface == EGL14.EGL_NO_SURFACE) {
    throw new RuntimeException("No EGLSurface - can't make current");
  }
  synchronized (EglBase.lock) {
    if (!EGL14.eglMakeCurrent(eglDisplay, eglSurface, eglSurface, eglContext)) {
      throw new RuntimeException(
          "eglMakeCurrent failed: 0x" + Integer.toHexString(EGL14.eglGetError()));
    }
  }
}
 

/**
 * Makes our EGL context current, using the supplied surface for both "draw" and "read".
 */
public void makeCurrent(EGLSurface eglSurface) {
    if (mEGLDisplay == EGL14.EGL_NO_DISPLAY) {
        // called makeCurrent() before create?
        Log.d(TAG, "NOTE: makeCurrent w/o display");
    }
    if (!EGL14.eglMakeCurrent(mEGLDisplay, eglSurface, eglSurface, mEGLContext)) {
        throw new RuntimeException("eglMakeCurrent failed");
    }
}
 

public void release() {
    if (EGL14.eglGetCurrentContext().equals(mEGLContext)) {
        EGL14.eglMakeCurrent(mEGLDisplay, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_CONTEXT);
    }
    EGL14.eglDestroySurface(mEGLDisplay, mEGLSurface);
    EGL14.eglDestroyContext(mEGLDisplay, mEGLContext);
    mSurface.release();
    mEGLDisplay = null;
    mEGLContext = null;
    mEGLSurface = null;
    mSurface = null;
}
 

public void release() {
    if (EGL14.eglGetCurrentContext().equals(mEGLContext)) {
        EGL14.eglMakeCurrent(mEGLDisplay, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_CONTEXT);
    }
    EGL14.eglDestroySurface(mEGLDisplay, mEGLSurface);
    EGL14.eglDestroyContext(mEGLDisplay, mEGLContext);
    mSurface.release();
    mEGLDisplay = null;
    mEGLContext = null;
    mEGLSurface = null;
    mSurface = null;
}
 

private void destroyWindowSurface(EGLSurface surface) {
    if (surface != EGL14.EGL_NO_SURFACE) {
        EGL14.eglMakeCurrent(mEglDisplay,
                EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_CONTEXT);
        EGL14.eglDestroySurface(mEglDisplay, surface);
    }
    surface = EGL14.EGL_NO_SURFACE;
}
 

/**
 * Makes our EGL context current, using the supplied surface for both "draw" and "read".
 */
public void makeCurrent(EGLSurface eglSurface) {
    if (mEGLDisplay == EGL14.EGL_NO_DISPLAY) {
        // called makeCurrent() before create?
        Log.d(TAG, "NOTE: makeCurrent w/o display");
    }
    if (!EGL14.eglMakeCurrent(mEGLDisplay, eglSurface, eglSurface, mEGLContext)) {
        throw new RuntimeException("eglMakeCurrent failed");
    }
}
 

/**
 * Makes our EGL activity current, using the supplied "draw" and "read" surfaces.
 */
public void makeCurrent(EGLSurface drawSurface, EGLSurface readSurface) {
    if (mEGLDisplay == EGL14.EGL_NO_DISPLAY) {
        // called makeCurrent() before create?
        Log.d(TAG, "NOTE: makeCurrent w/o display");
    }
    if (!EGL14.eglMakeCurrent(mEGLDisplay, drawSurface, readSurface, mEGLContext)) {
        throw new RuntimeException("eglMakeCurrent(draw,read) failed");
    }
}
 

/**
 * Makes our EGL context and surface current.
 */
public void makeCurrent() {
    if (!EGL14.eglMakeCurrent(mEGLDisplay, mEGLSurface, mEGLSurface, mEGLContext)) {
        throw new RuntimeException("eglMakeCurrent failed");
    }
}
 

@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
private static int getOpenGLMaxTextureSizeJB1() {
    // Then get a hold of the default display, and initialize.
    // This could get more complex if you have to deal with devices that could have multiple displays,
    // but will be sufficient for a typical phone/tablet:
    android.opengl.EGLDisplay dpy = EGL14.eglGetDisplay(EGL14.EGL_DEFAULT_DISPLAY);
    int[] vers = new int[2];
    EGL14.eglInitialize(dpy, vers, 0, vers, 1);

    // Next, we need to find a config. Since we won't use this context for rendering,
    // the exact attributes aren't very critical:
    int[] configAttr = {
            EGL14.EGL_COLOR_BUFFER_TYPE, EGL14.EGL_RGB_BUFFER,
            EGL14.EGL_LEVEL, 0,
            EGL14.EGL_RENDERABLE_TYPE, EGL14.EGL_OPENGL_ES2_BIT,
            EGL14.EGL_SURFACE_TYPE, EGL14.EGL_PBUFFER_BIT,
            EGL14.EGL_NONE
    };
    android.opengl.EGLConfig[] configs = new android.opengl.EGLConfig[1];
    int[] numConfig = new int[1];
    EGL14.eglChooseConfig(dpy, configAttr, 0,
            configs, 0, 1, numConfig, 0);
    //noinspection StatementWithEmptyBody
    if (numConfig[0] == 0) {
        // TROUBLE! No config found.
    }
    android.opengl.EGLConfig config = configs[0];

    // To make a context current, which we will need later,
    // you need a rendering surface, even if you don't actually plan to render.
    // To satisfy this requirement, create a small offscreen (Pbuffer) surface:
    int[] surfAttr = {
            EGL14.EGL_WIDTH, 64,
            EGL14.EGL_HEIGHT, 64,
            EGL14.EGL_NONE
    };
    android.opengl.EGLSurface surf = EGL14.eglCreatePbufferSurface(dpy, config, surfAttr, 0);

    // Next, create the context:
    int[] ctxAttrib = {
            EGL14.EGL_CONTEXT_CLIENT_VERSION, 2,
            EGL14.EGL_NONE
    };
    android.opengl.EGLContext ctx = EGL14.eglCreateContext(dpy, config, EGL14.EGL_NO_CONTEXT, ctxAttrib, 0);

    // Ready to make the context current now:
    EGL14.eglMakeCurrent(dpy, surf, surf, ctx);

    // If all of the above succeeded (error checking was omitted), you can make your OpenGL calls now:
    int[] maxSize = new int[1];
    GLES20.glGetIntegerv(GLES20.GL_MAX_TEXTURE_SIZE, maxSize, 0);

    // Once you're all done, you can tear down everything:
    EGL14.eglMakeCurrent(dpy, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_SURFACE,
            EGL14.EGL_NO_CONTEXT);
    EGL14.eglDestroySurface(dpy, surf);
    EGL14.eglDestroyContext(dpy, ctx);
    EGL14.eglTerminate(dpy);

    return maxSize[0];
}
 

/**
 * Makes our EGL context and surface current.
 */
public void makeCurrent() {
    EGL14.eglMakeCurrent(mEGLDisplay, mEGLSurface, mEGLSurface, mEGLContext);
    checkEglError("eglMakeCurrent");
}
 

public void makeCurrent() {
    if (!EGL14.eglMakeCurrent(mEGLDisplay, mEGLSurface, mEGLSurface, mEGLContext)) {
        throw new RuntimeException("eglMakeCurrent failed");
    }
}
 

private void detachEglContext() {
    if (mEglDisplay != null) {
        EGL14.eglMakeCurrent(mEglDisplay,
                EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_SURFACE, EGL14.EGL_NO_CONTEXT);
    }
}
 

private void initEgl(Surface inputSurface) {

        eglDisplay = EGL14.eglGetDisplay(EGL14.EGL_DEFAULT_DISPLAY);

        if (eglDisplay == EGL14.EGL_NO_DISPLAY) {
            Log.e(TAG, "eglDisplay == EGL14.EGL_NO_DISPLAY: " + GLUtils.getEGLErrorString(EGL14.eglGetError()));
        }

        int[] version = new int[2];

        int[] attrsList = new int[]{
                EGL14.EGL_RED_SIZE, 8,
                EGL14.EGL_GREEN_SIZE, 8,
                EGL14.EGL_BLUE_SIZE, 8,
                EGL14.EGL_ALPHA_SIZE, 8,
                EGL14.EGL_RENDERABLE_TYPE, EGL14.EGL_OPENGL_ES2_BIT,
                EGL_RECORDABLE_ANDROID, 1,
                EGL14.EGL_NONE
        };

        EGLConfig[] configs = new EGLConfig[1];

        int[] ctxAttrs = {
                EGL14.EGL_CONTEXT_CLIENT_VERSION, 2,
                EGL14.EGL_NONE
        };

        int[] surfaceAttrs = {
                EGL14.EGL_NONE
        };

        if (!EGL14.eglInitialize(eglDisplay, version, 0, version, 1)) {
            Log.e(TAG, "eglInitialize: " + GLUtils.getEGLErrorString(EGL14.eglGetError()));
        }

        if (!EGL14.eglChooseConfig(eglDisplay, attrsList, 0, configs, 0, configs.length, new int[configs.length], 0)) {
            Log.e(TAG, GLUtils.getEGLErrorString(EGL14.eglGetError()));
        }

        eglContext = EGL14.eglCreateContext(eglDisplay, configs[0], EGL14.EGL_NO_CONTEXT, ctxAttrs, 0);
        eglSurface = EGL14.eglCreateWindowSurface(eglDisplay, configs[0], inputSurface, surfaceAttrs, 0);

        if (!EGL14.eglMakeCurrent(eglDisplay, eglSurface, eglSurface, eglContext)) {
            Log.d(TAG, "eglMakeCurrent: " + GLUtils.getEGLErrorString(EGL14.eglGetError()));
        }
    }
 

/**
 * Makes our EGL context and surface current.
 */
public void makeCurrent() {
    if (!EGL14.eglMakeCurrent(mEGLDisplay, mEGLSurface, mEGLSurface, mEGLContext)) {
        throw new RuntimeException("eglMakeCurrent failed");
    }
}
 

/**
 * Makes our EGL context and surface current.
 */
public void makeCurrent() {
    EGL14.eglMakeCurrent(mEGLDisplay, mEGLSurface, mEGLSurface, mEGLContext);
    checkEglError("eglMakeCurrent");
}