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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/*
* This file is based on WME Lite.
* http://dead-code.org/redir.php?target=wmelite
* Copyright (c) 2011 Jan Nedoma
*/
#ifndef WINTERMUTE_RENDER_TICKET_H
#define WINTERMUTE_RENDER_TICKET_H
#include "graphics/transparent_surface.h"
#include "graphics/surface.h"
#include "common/rect.h"
namespace Wintermute {
class BaseSurfaceOSystem;
/**
* A single RenderTicket.
* A render ticket is a collection of the data and draw specifications made
* for a single draw-call in the OSystem-backend for WME. The ticket additionally
* holds the order in which this call was made, so that it can be detected if
* the same call is done in the following frame. Thus allowing us to potentially
* skip drawing the same region again, unless anything has changed. Since a surface
* can have a potentially large amount of draw-calls made to it, at varying rotation,
* zoom, and crop-levels we also need to hold a copy of the necessary data.
* (Video-surfaces may even change their data). The promise that is made when a ticket
* is created is that what the state was of the surface at THAT point, is what will end
* up on screen at flip() time.
*/
class RenderTicket {
public:
RenderTicket(BaseSurfaceOSystem *owner, const Graphics::Surface *surf, Common::Rect *srcRect, Common::Rect *dstRest, Graphics::TransformStruct transform);
RenderTicket() : _isValid(true), _wantsDraw(false), _transform(Graphics::TransformStruct()) {}
~RenderTicket();
const Graphics::Surface *getSurface() const { return _surface; }
// Non-dirty-rects:
void drawToSurface(Graphics::Surface *_targetSurface) const;
// Dirty-rects:
void drawToSurface(Graphics::Surface *_targetSurface, Common::Rect *dstRect, Common::Rect *clipRect) const;
Common::Rect _dstRect;
bool _isValid;
bool _wantsDraw;
Graphics::TransformStruct _transform;
BaseSurfaceOSystem *_owner;
bool operator==(const RenderTicket &a) const;
const Common::Rect *getSrcRect() const { return &_srcRect; }
private:
Graphics::Surface *_surface;
Common::Rect _srcRect;
};
} // End of namespace Wintermute
#endif
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