/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/

#ifndef plDXShader_inc
#define plDXShader_inc

#include "plDXDeviceRef.h"

class plShader;
class plDXPipeline;

class plDXShader : public plDXDeviceRef
{
protected:
	plShader*			fOwner;
	char*				fErrorString;
	plDXPipeline*		fPipe;

	HRESULT				IOnError(HRESULT hr, const char* errStr);
	const char*			ISetError(const char* errStr);

	virtual HRESULT		ICreate(plDXPipeline* pipe) = 0;
	virtual HRESULT		ISetConstants(plDXPipeline* pipe) = 0; // On error, sets error string.

public:
	plDXShader(plShader* owner);
	virtual ~plDXShader();

	const char*		GetErrorString() const { return fErrorString; }
	void			SetOwner(plShader* owner);
};

#endif // plDXShader_inc