private void activate() { if (_active == 0) { try { _oldContext = ContextManager.getCurrentContext(); _pbuffer.makeCurrent(); ContextManager.switchContext(_pbuffer); ContextManager.getCurrentContext().clearEnforcedStates(); ContextManager.getCurrentContext().enforceStates(_enforcedStates); if (_bgColorDirty) { GL11.glClearColor( _backgroundColor.getRed(), _backgroundColor.getGreen(), _backgroundColor.getBlue(), _backgroundColor.getAlpha()); _bgColorDirty = false; } } catch (final LWJGLException e) { logger.logp(Level.SEVERE, this.getClass().toString(), "activate()", "Exception", e); throw new Ardor3dException(); } } _active++; }
protected void runLoop() { if (!created.get()) { throw new IllegalStateException(); } if (pbuffer.isBufferLost()) { pbuffer.destroy(); try { pbuffer = new Pbuffer(width, height, pixelFormat, null); pbuffer.makeCurrent(); // Context MUST be reset here to avoid invalid objects! renderer.invalidateState(); } catch (LWJGLException ex) { listener.handleError("Failed to restore pbuffer content", ex); } } listener.update(); checkGLError(); renderer.postFrame(); // Need to flush GL commands // to see any result on the pbuffer's front buffer. GL11.glFlush(); int frameRate = settings.getFrameRate(); if (frameRate >= 1) { Display.sync(frameRate); } }
private void initPbuffer() { try { if (_pbuffer != null) { giveBackContext(); ContextManager.removeContext(_pbuffer); } final PixelFormat format = new PixelFormat( _settings.getAlphaBits(), _settings.getDepthBits(), _settings.getStencilBits()) .withSamples(_settings.getSamples()) .withBitsPerPixel(_settings.getColorDepth()) .withStereo(_settings.isStereo()); _pbuffer = new Pbuffer(_width, _height, format, _texture, null); final Object contextKey = _pbuffer; try { _pbuffer.makeCurrent(); } catch (final LWJGLException e) { throw new RuntimeException(e); } final LwjglContextCapabilities caps = new LwjglContextCapabilities(GLContext.getCapabilities()); ContextManager.addContext( contextKey, new RenderContext(contextKey, caps, ContextManager.getCurrentContext())); } catch (final Exception e) { logger.logp(Level.SEVERE, this.getClass().toString(), "initPbuffer()", "Exception", e); if (_texture != null && _useDirectRender) { logger.warning( "Your card claims to support Render to Texture but fails to enact it. Updating your driver might solve this problem."); logger.warning("Attempting to fall back to Copy Texture."); _texture = null; _useDirectRender = false; initPbuffer(); return; } logger.log(Level.WARNING, "Failed to create Pbuffer.", e); return; } try { activate(); _width = _pbuffer.getWidth(); _height = _pbuffer.getHeight(); deactivate(); } catch (final Exception e) { logger.log(Level.WARNING, "Failed to initialize created Pbuffer.", e); return; } }
protected void initInThread() { if ((Pbuffer.getCapabilities() & Pbuffer.PBUFFER_SUPPORTED) == 0) { logger.severe("Offscreen surfaces are not supported."); return; } int samples = getNumSamplesToUse(); pixelFormat = new PixelFormat( settings.getBitsPerPixel(), 0, settings.getDepthBits(), settings.getStencilBits(), samples); width = settings.getWidth(); height = settings.getHeight(); try { Thread.setDefaultUncaughtExceptionHandler( new Thread.UncaughtExceptionHandler() { public void uncaughtException(Thread thread, Throwable thrown) { listener.handleError("Uncaught exception thrown in " + thread.toString(), thrown); } }); pbuffer = new Pbuffer(width, height, pixelFormat, null, null, createContextAttribs()); pbuffer.makeCurrent(); renderable.set(true); logger.fine("Offscreen buffer created."); printContextInitInfo(); } catch (LWJGLException ex) { listener.handleError("Failed to create display", ex); } finally { // TODO: It is possible to avoid "Failed to find pixel format" // error here by creating a default display. } super.internalCreate(); listener.initialize(); }
protected int determineMaxSamples(int requestedSamples) { boolean displayWasCurrent = false; try { // If we already have a valid context, determine samples using current // context. if (Display.isCreated() && Display.isCurrent()) { if (GLContext.getCapabilities().GL_ARB_framebuffer_object) { return GL11.glGetInteger(ARBFramebufferObject.GL_MAX_SAMPLES); } else if (GLContext.getCapabilities().GL_EXT_framebuffer_multisample) { return GL11.glGetInteger(EXTFramebufferMultisample.GL_MAX_SAMPLES_EXT); } // Doesn't support any of the needed extensions .. continue down. displayWasCurrent = true; } } catch (LWJGLException ex) { listener.handleError("Failed to check if display is current", ex); } if ((Pbuffer.getCapabilities() & Pbuffer.PBUFFER_SUPPORTED) == 0) { // No pbuffer, assume everything is supported. return Integer.MAX_VALUE; } else { Pbuffer pb = null; if (!displayWasCurrent) { // OpenGL2 method: Create pbuffer and query samples // from GL_ARB_framebuffer_object or GL_EXT_framebuffer_multisample. try { pb = new Pbuffer(1, 1, new PixelFormat(0, 0, 0), null); pb.makeCurrent(); if (GLContext.getCapabilities().GL_ARB_framebuffer_object) { return GL11.glGetInteger(ARBFramebufferObject.GL_MAX_SAMPLES); } else if (GLContext.getCapabilities().GL_EXT_framebuffer_multisample) { return GL11.glGetInteger(EXTFramebufferMultisample.GL_MAX_SAMPLES_EXT); } // OpenGL2 method failed. } catch (LWJGLException ex) { // Something else failed. return Integer.MAX_VALUE; } finally { if (pb != null) { pb.destroy(); pb = null; } } } // OpenGL1 method (DOESNT WORK RIGHT NOW ..) requestedSamples = FastMath.nearestPowerOfTwo(requestedSamples); try { requestedSamples = Integer.MAX_VALUE; /* while (requestedSamples > 1) { try { pb = new Pbuffer(1, 1, new PixelFormat(16, 0, 8, 0, requestedSamples), null); } catch (LWJGLException ex) { if (ex.getMessage().startsWith("Failed to find ARB pixel format")) { // Unsupported format, so continue. requestedSamples = FastMath.nearestPowerOfTwo(requestedSamples / 2); } else { // Something else went wrong .. return Integer.MAX_VALUE; } } finally { if (pb != null){ pb.destroy(); pb = null; } } }*/ } finally { if (displayWasCurrent) { try { Display.makeCurrent(); } catch (LWJGLException ex) { listener.handleError("Failed to make display current after checking samples", ex); } } } return requestedSamples; } }