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/*******************************************************************************
* renderbackend.h
*
* ---------------------------------------------------------------------------
* Persistence of Vision Ray Tracer ('POV-Ray') version 3.7.
* Copyright 1991-2013 Persistence of Vision Raytracer Pty. Ltd.
*
* POV-Ray is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* POV-Ray is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* ---------------------------------------------------------------------------
* POV-Ray is based on the popular DKB raytracer version 2.12.
* DKBTrace was originally written by David K. Buck.
* DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
* ---------------------------------------------------------------------------
* $File: //depot/public/povray/3.x/source/backend/control/renderbackend.h $
* $Revision: #1 $
* $Change: 6069 $
* $DateTime: 2013/11/06 11:59:40 $
* $Author: chrisc $
*******************************************************************************/
#ifndef POVRAY_BACKEND_RENDERBACKEND_H
#define POVRAY_BACKEND_RENDERBACKEND_H
#include <map>
#include <set>
#include "base/povms.h"
#include "base/povmscpp.h"
#include "backend/povray.h"
namespace pov
{
using namespace pov_base;
class Scene;
class View;
/**
* RenderBackend class receives render control messages from the
* RenderFrontend class. Thee control messages are processed and
* parsing, rendering or other operations are performed as
* requested by the frontend.
*/
class RenderBackend : public POVMS_MessageReceiver
{
public:
typedef POVMSInt SceneId;
typedef POVMSInt ViewId;
RenderBackend(POVMSContext ctx, bool (*val)(POVMSAddress));
~RenderBackend();
static void SendSceneOutput(SceneId sid, POVMSAddress addr, POVMSType ident, POVMS_Object& obj);
static void SendViewOutput(ViewId vid, POVMSAddress addr, POVMSType ident, POVMS_Object& obj);
static void SendFindFile(POVMSContext ctx, SceneId sid, POVMSAddress addr, const vector<UCS2String>& filenames, UCS2String& filename);
static void SendReadFile(POVMSContext ctx, SceneId sid, POVMSAddress addr, const UCS2String& filename, UCS2String& localfile, UCS2String& fileurl);
static void SendCreatedFile(POVMSContext ctx, SceneId sid, POVMSAddress addr, const UCS2String& filename);
static void SendSuccessResult(POVMSAddress addr);
static void SendFailedResult(int error, POVMSAddress addr);
static void SendFailedResult(const pov_base::Exception& e, POVMSAddress addr);
static void SendFailedResult(const char *str, POVMSAddress addr);
static void SendSceneSuccessResult(SceneId sid, POVMSAddress addr);
static void SendSceneFailedResult(SceneId sid, int error, POVMSAddress addr);
static void SendSceneFailedResult(SceneId sid, const pov_base::Exception& e, POVMSAddress addr);
static void SendSceneFailedResult(SceneId sid, const char *str, POVMSAddress addr);
static void SendViewSuccessResult(ViewId vid, POVMSAddress addr);
static void SendViewFailedResult(ViewId vid, int error, POVMSAddress addr);
static void SendViewFailedResult(ViewId vid, const pov_base::Exception& e, POVMSAddress addr);
static void SendViewFailedResult(ViewId vid, const char *str, POVMSAddress addr);
protected:
void CreateScene(POVMS_Message& msg, POVMS_Message& result, int mode);
void CloseScene(POVMS_Message& msg, POVMS_Message& result, int mode);
void CreateView(POVMS_Message& msg, POVMS_Message& result, int mode);
void CloseView(POVMS_Message& msg, POVMS_Message& result, int mode);
void StartParser(POVMS_Message& msg, POVMS_Message& result, int mode);
void StopParser(POVMS_Message& msg, POVMS_Message& result, int mode);
void PauseParser(POVMS_Message& msg, POVMS_Message& result, int mode);
void ResumeParser(POVMS_Message& msg, POVMS_Message& result, int mode);
void StartRender(POVMS_Message& msg, POVMS_Message& result, int mode);
void StopRender(POVMS_Message& msg, POVMS_Message& result, int mode);
void PauseRender(POVMS_Message& msg, POVMS_Message& result, int mode);
void ResumeRender(POVMS_Message& msg, POVMS_Message& result, int mode);
void ReadFile(POVMS_Message& msg, POVMS_Message& result, int mode);
private:
static POVMSContext context;
bool (*validateFrontendAddress)(POVMSAddress);
SceneId scenecounter;
ViewId viewcounter;
std::map<SceneId, shared_ptr<Scene> > scenes;
std::map<ViewId, shared_ptr<View> > views;
std::map<SceneId, std::set<ViewId> > scene2views;
std::map<ViewId, SceneId> view2scene;
bool ValidateFrontendAddress(POVMSAddress addr, POVMS_Message& result);
void MakeFailedResult(int error, POVMS_Message& result);
void MakeFailedResult(const pov_base::Exception& e, POVMS_Message& result);
void MakeFailedResult(const char *str, POVMS_Message& result);
void MakeDoneResult(POVMS_Message& result);
};
}
#endif // POVRAY_BACKEND_RENDERBACKEND_H
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