1 files changed, 272 insertions, 0 deletions
diff --git a/Runtime/Camera/RenderManager.cpp b/Runtime/Camera/RenderManager.cpp
new file mode 100644
index 0000000..65301e5
--- /dev/null
+++ b/Runtime/Camera/RenderManager.cpp
@@ -0,0 +1,272 @@
+#include "UnityPrefix.h"
+#include "RenderManager.h"
+#include "Runtime/BaseClasses/ManagerContext.h"
+#include "Camera.h"
+#include "Renderable.h"
+#include <vector>
+#include "UnityScene.h"
+#include "Runtime/Filters/Renderer.h"
+#include "Runtime/Graphics/ParticleSystem/ParticleSystem.h"
+#include "Runtime/Profiler/Profiler.h"
+#include "Runtime/Profiler/ExternalGraphicsProfiler.h"
+#include "Runtime/Mono/MonoBehaviour.h"
+#include "Runtime/Camera/CullResults.h"
+#include "Runtime/Camera/CameraCullingParameters.h"
+
+static RenderManager* gRenderManager = NULL;
+
+
+// NOTE: AddCamera/RemoveCamera defer the actual addition/removal when called from inside Culling/Rendering
+// loop. Reason: add/remove may invalidate iterators; and that happens in cases like disabling self (or some other)
+// camera from OnPostRender etc.
+
+RenderManager::RenderManager ()
+:	m_InsideRenderOrCull(false)
+{
+	m_WindowRect = Rectf(0.0f, 0.0f, 128.0f, 128.0f );
+	m_CurrentViewPort[0] = m_CurrentViewPort[1] = 0;
+	m_CurrentViewPort[2] = m_CurrentViewPort[3] = 128;
+	m_CurrentCamera = NULL;
+}
+
+RenderManager::~RenderManager () {
+	Assert (m_Cameras.empty ());
+}
+
+
+PROFILER_INFORMATION(gCameraRenderManagerProfile, "Camera.Render", kProfilerRender)
+PROFILER_INFORMATION(gCameraUpdateRenderersProfile, "Rendering.UpdateDirtyRenderers", kProfilerRender)
+
+
+void RenderManager::RenderOffscreenCameras()
+{
+	m_InsideRenderOrCull = true;
+
+	// Make sure current viewport is fully preserved after rendering offscreen cameras
+	int savedViewport[4];
+	for (int i = 0; i < 4; ++i)
+		savedViewport[i] = m_CurrentViewPort[i];
+	
+	// Render all offscreen cameras so they are ready for the real cameras.
+	for (CameraContainer::iterator i = m_OffScreenCameras.begin(); i != m_OffScreenCameras.end(); ++i )
+	{
+		Camera* cam = *i;
+		PROFILER_AUTO_GFX(gCameraRenderManagerProfile, cam)
+	
+		m_CurrentCamera = cam;
+		CullResults cullResults;
+		if( cam && cam->GetEnabled() ) // might become NULL or disabled in OnPreCull
+			cam->Cull(cullResults);
+		if( cam && cam->GetEnabled() ) // check again, might get disabled in culling
+			cam->Render( cullResults, Camera::kRenderFlagSetRenderTarget);
+	}
+
+	for (int i = 0; i < 4; ++i)
+		m_CurrentViewPort[i] = savedViewport[i];
+
+	m_InsideRenderOrCull = false;
+	AddRemoveCamerasDelayed();
+}
+
+void RenderManager::RenderCameras()
+{
+	m_InsideRenderOrCull = true;
+	
+	Unity::Scene& scene = GetScene();
+
+	// Render on-screen cameras.
+	for (CameraContainer::iterator i = m_Cameras.begin(); i != m_Cameras.end(); ++i )
+	{
+		Camera* cam = *i;	
+		PROFILER_AUTO_GFX(gCameraRenderManagerProfile, cam)
+		
+		/////@TODO: This is not reflected in the standalone render function...
+		scene.BeginCameraRender();
+		m_CurrentCamera = cam;
+		CullResults cullResults;
+		if( cam && cam->GetEnabled() ) // might become NULL or disabled in OnPreCull
+			cam->Cull(cullResults);
+		if( cam && cam->GetEnabled() ) // check again, might get disabled in culling
+			cam->Render( cullResults, Camera::kRenderFlagSetRenderTarget );
+		scene.EndCameraRender();
+	}
+
+	m_InsideRenderOrCull = false;
+	AddRemoveCamerasDelayed();
+}
+
+
+/** Get a render callback for each Camera */
+void RenderManager::AddCameraRenderable (Renderable *r, int depth) {
+//	Assert (depth <= Camera::kRenderQueueCount);
+	#if DEBUGMODE
+	for (Renderables::iterator i = m_Renderables.begin (); i != m_Renderables.end();i++)  {
+		if (i->second == r && i->first == depth)
+			AssertString ("RenderManager: renderable with same depth already added");
+	}
+	#endif
+
+	m_Renderables.insert (std::make_pair (depth, r));
+}
+
+void RenderManager::RemoveCameraRenderable (Renderable *r) {
+	Renderables::iterator next;
+	for (Renderables::iterator i = m_Renderables.begin (); i != m_Renderables.end();i=next)  {
+		next = i;
+		next++;
+		if (i->second == r)
+		{
+			m_Renderables.erase (i);
+		}
+	}
+}
+
+
+void RenderManager::InvokeOnRenderObjectCallbacks ()
+{
+	if (m_OnRenderObjectCallbacks.empty())
+		return;
+
+#if ENABLE_MONO || UNITY_WINRT
+	SafeIterator<MonoBehaviourList> it (m_OnRenderObjectCallbacks);
+	while (it.Next())
+	{
+		MonoBehaviour& beh = **it;
+		beh.InvokeOnRenderObject ();
+	}
+#endif
+}
+
+
+#if UNITY_EDITOR
+
+bool RenderManager::HasFullscreenCamera () const
+{
+	for (CameraContainer::const_iterator i = m_Cameras.begin(); i != m_Cameras.end(); i++) {
+		Rectf viewRect = (*i)->GetNormalizedViewportRect  ();
+		if (CompareApproximately(Rectf(0,0,1,1), viewRect))
+			return true;
+	}
+	return false;
+}
+
+#endif // UNITY_EDITOR
+
+
+void RenderManager::AddCamera (Camera *c)
+{
+	Assert (c != NULL);
+	
+	PPtr<Camera> cam(c);
+	if( m_InsideRenderOrCull )
+	{
+		m_CamerasToRemove.remove( cam );
+		m_CamerasToAdd.push_back( cam );
+		return;
+	}
+
+	m_CamerasToAdd.remove(c);
+	m_CamerasToRemove.remove(c);
+
+	m_Cameras.remove( cam );
+	m_OffScreenCameras.remove( cam );
+	CameraContainer &queue = (c->GetTargetTexture() == NULL) ? m_Cameras : m_OffScreenCameras;
+	
+	for (CameraContainer::iterator i=queue.begin ();i != queue.end ();i++)
+	{
+		Camera* curCamera = *i;
+		if (curCamera && curCamera->GetDepth () > c->GetDepth ())
+		{
+			queue.insert (i, c);
+			return;
+		}
+	}
+	queue.push_back (c);
+}
+
+void RenderManager::RemoveCamera (Camera *c)
+{
+	PPtr<Camera> cam(c);
+
+	m_CamerasToAdd.remove(c);
+	m_CamerasToRemove.remove(c);
+
+	if( m_InsideRenderOrCull )
+	{
+		m_CamerasToRemove.push_back( cam );
+	}
+	else
+	{
+		m_Cameras.remove( cam );
+		m_OffScreenCameras.remove( cam );
+	}
+
+	Camera* currentCamera = m_CurrentCamera;
+	if (currentCamera == c)
+	{
+		if (m_Cameras.empty ())
+			m_CurrentCamera = NULL;
+		else
+			m_CurrentCamera = m_Cameras.front (); // ??? maybe better choose next
+	}
+}
+
+void RenderManager::AddRemoveCamerasDelayed()
+{
+	DebugAssertIf( m_InsideRenderOrCull );
+	for( CameraContainer::iterator i = m_CamerasToRemove.begin(); i != m_CamerasToRemove.end(); /**/ )
+	{
+		Camera* cam = *i;
+		++i; // increment iterator before removing camera; as it changes the list
+		RemoveCamera( cam );
+	}
+	m_CamerasToRemove.clear();
+	for( CameraContainer::iterator i = m_CamerasToAdd.begin(); i != m_CamerasToAdd.end(); /**/ )
+	{
+		Camera* cam = *i;
+		++i; // increment iterator before adding camera; as it changes the list
+		AddCamera( cam );
+	}
+	m_CamerasToAdd.clear();
+}
+
+
+void RenderManager::SetWindowRect (const Rectf& r)
+{
+	m_WindowRect = r;
+	for( CameraContainer::iterator i=m_Cameras.begin ();i != m_Cameras.end (); ++i )
+		(**i).WindowSizeHasChanged();
+}
+
+
+void RenderManager::UpdateAllRenderers()
+{
+	ParticleSystem::SyncJobs();
+	
+	PROFILER_AUTO(gCameraUpdateRenderersProfile, NULL) 
+	Renderer::UpdateAllRenderersInternal();
+}
+
+
+RenderManager& GetRenderManager ()
+{
+	return *gRenderManager;
+}
+
+RenderManager* GetRenderManagerPtr ()
+{
+	return gRenderManager;
+}
+
+void RenderManager::InitializeClass ()
+{
+	Assert(gRenderManager == NULL);
+	gRenderManager = new RenderManager ();
+}
+
+void RenderManager::CleanupClass ()
+{
+	Assert(gRenderManager != NULL);
+	delete gRenderManager;
+	gRenderManager = NULL;
+}