//---------------------------------------------------------------------
bool CompositorManager::isInputToOutputTarget(CompositorInstance* inst, const Ogre::String& localName)
{
CompositionTargetPass* tp = inst->getTechnique()->getOutputTargetPass();
CompositionTargetPass::PassIterator pit = tp->getPassIterator();
while(pit.hasMoreElements())
{
CompositionPass* p = pit.getNext();
for (size_t i = 0; i < p->getNumInputs(); ++i)
{
if (p->getInput(i).name == localName)
return true;
}
}
return false;
}
//---------------------------------------------------------------------()
bool CompositorManager::isInputToOutputTarget(CompositorInstance* inst, TexturePtr tex)
{
CompositionTargetPass* tp = inst->getTechnique()->getOutputTargetPass();
CompositionTargetPass::PassIterator pit = tp->getPassIterator();
while(pit.hasMoreElements())
{
CompositionPass* p = pit.getNext();
for (size_t i = 0; i < p->getNumInputs(); ++i)
{
TexturePtr t = inst->getTextureInstance(p->getInput(i).name, 0);
if (!t.isNull() && t.get() == tex.get())
return true;
}
}
return false;
}
//---------------------------------------------------------------------
void CompositorInstance::deriveTextureRenderTargetOptions(
const String& texname, bool *hwGammaWrite, uint *fsaa)
{
// search for passes on this texture def that either include a render_scene
// or use input previous
bool renderingScene = false;
CompositionTechnique::TargetPassIterator it = mTechnique->getTargetPassIterator();
while (it.hasMoreElements())
{
CompositionTargetPass* tp = it.getNext();
if (tp->getOutputName() == texname)
{
if (tp->getInputMode() == CompositionTargetPass::IM_PREVIOUS)
{
// this may be rendering the scene implicitly
// Can't check mPreviousInstance against mChain->_getOriginalSceneCompositor()
// at this time, so check the position
CompositorChain::InstanceIterator instit = mChain->getCompositors();
renderingScene = true;
while(instit.hasMoreElements())
{
CompositorInstance* inst = instit.getNext();
if (inst == this)
break;
else if (inst->getEnabled())
{
// nope, we have another compositor before us, this will
// be doing the AA
renderingScene = false;
}
}
if (renderingScene)
break;
}
else
{
// look for a render_scene pass
CompositionTargetPass::PassIterator pit = tp->getPassIterator();
while(pit.hasMoreElements())
{
CompositionPass* pass = pit.getNext();
if (pass->getType() == CompositionPass::PT_RENDERSCENE)
{
renderingScene = true;
break;
}
}
}
}
}
if (renderingScene)
{
// Ok, inherit settings from target
RenderTarget* target = mChain->getViewport()->getTarget();
*hwGammaWrite = target->isHardwareGammaEnabled();
*fsaa = target->getFSAA();
}
else
{
*hwGammaWrite = false;
*fsaa = 0;
}
}