/** * Initializes the appropriate OpenGL offscreen surface based on the value of the type parameter. * If the surface creation fails for any reason, an OutOfMemoryError will be thrown. */ protected void initSurface(final int width, final int height) { OGLRenderQueue rq = OGLRenderQueue.getInstance(); rq.lock(); try { switch (type) { case TEXTURE: case PBUFFER: case FBOBJECT: // need to make sure the context is current before // creating the texture (or pbuffer, or fbobject) OGLContext.setScratchSurface(graphicsConfig); break; default: break; } rq.flushAndInvokeNow( new Runnable() { public void run() { initSurfaceNow(width, height); } }); } finally { rq.unlock(); } }
public static GLXGraphicsConfig getConfig(X11GraphicsDevice device, int visualnum) { if (!X11GraphicsEnvironment.isGLXAvailable()) { return null; } long cfginfo = 0; final String ids[] = new String[1]; OGLRenderQueue rq = OGLRenderQueue.getInstance(); rq.lock(); try { // getGLXConfigInfo() creates and destroys temporary // surfaces/contexts, so we should first invalidate the current // Java-level context and flush the queue... OGLContext.invalidateCurrentContext(); GLXGetConfigInfo action = new GLXGetConfigInfo(device.getScreen(), visualnum); rq.flushAndInvokeNow(action); cfginfo = action.getConfigInfo(); if (cfginfo != 0L) { OGLContext.setScratchSurface(cfginfo); rq.flushAndInvokeNow( new Runnable() { public void run() { ids[0] = OGLContext.getOGLIdString(); } }); } } finally { rq.unlock(); } if (cfginfo == 0) { return null; } int oglCaps = getOGLCapabilities(cfginfo); ContextCapabilities caps = new OGLContextCaps(oglCaps, ids[0]); return new GLXGraphicsConfig(device, visualnum, cfginfo, caps); }