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 render(
final List<? extends Spatial> toDrawA,
final Spatial toDrawB,
final Scene toDrawC,
final List<Texture> texs,
final int clear) {
try {
if (_pbuffer == null || _pbuffer.isBufferLost()) {
if (_pbuffer != null && _pbuffer.isBufferLost()) {
logger.warning("PBuffer contents lost - will recreate the buffer");
deactivate();
_pbuffer.destroy();
}
initPbuffer();
}
if (texs.size() == 1
&& _useDirectRender
&& !texs.get(0).getTextureStoreFormat().isDepthFormat()) {
// setup and render directly to a 2d texture.
LwjglTextureStateUtil.doTextureBind(texs.get(0), 0, true);
activate();
switchCameraIn(clear);
_pbuffer.releaseTexImage(Pbuffer.FRONT_LEFT_BUFFER);
if (toDrawA != null) {
doDraw(toDrawA);
} else {
doDraw(toDrawB);
}
switchCameraOut();
deactivate();
_pbuffer.bindTexImage(Pbuffer.FRONT_LEFT_BUFFER);
} else {
// render and copy to a texture
activate();
switchCameraIn(clear);
if (toDrawA != null) {
doDraw(toDrawA);
} else {
doDraw(toDrawB);
}
switchCameraOut();
for (int i = 0; i < texs.size(); i++) {
copyToTexture(texs.get(i), 0, 0, _width, _height, 0, 0);
}
deactivate();
}
} catch (final Exception e) {
logger.logp(
Level.SEVERE, this.getClass().toString(), "render(Spatial, Texture)", "Exception", e);
}
}
protected void deinitInThread() {
renderable.set(false);
listener.destroy();
renderer.cleanup();
pbuffer.destroy();
logger.fine("Offscreen buffer destroyed.");
super.internalDestroy();
}
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;
}
}
public void cleanup() {
ContextManager.removeContext(_pbuffer);
_pbuffer.destroy();
}
