80 lines
2.9 KiB
C++
80 lines
2.9 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/*
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* This file is based on WME Lite.
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* http://dead-code.org/redir.php?target=wmelite
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* Copyright (c) 2011 Jan Nedoma
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*/
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#ifndef WINTERMUTE_RENDER_TICKET_H
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#define WINTERMUTE_RENDER_TICKET_H
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#include "graphics/managed_surface.h"
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#include "common/rect.h"
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namespace Wintermute {
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class BaseSurfaceOSystem;
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/**
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* A single RenderTicket.
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* A render ticket is a collection of the data and draw specifications made
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* for a single draw-call in the OSystem-backend for WME. The ticket additionally
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* holds the order in which this call was made, so that it can be detected if
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* the same call is done in the following frame. Thus allowing us to potentially
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* skip drawing the same region again, unless anything has changed. Since a surface
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* can have a potentially large amount of draw-calls made to it, at varying rotation,
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* zoom, and crop-levels we also need to hold a copy of the necessary data.
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* (Video-surfaces may even change their data). The promise that is made when a ticket
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* is created is that what the state was of the surface at THAT point, is what will end
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* up on screen at flip() time.
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*/
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class RenderTicket {
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public:
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RenderTicket(BaseSurfaceOSystem *owner, const Graphics::Surface *surf, Common::Rect *srcRect, Common::Rect *dstRest, Graphics::TransformStruct transform);
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RenderTicket() : _isValid(true), _wantsDraw(false), _transform(Graphics::TransformStruct()) {}
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~RenderTicket();
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const Graphics::Surface *getSurface() const { return _surface; }
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// Non-dirty-rects:
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void drawToSurface(Graphics::ManagedSurface *_targetSurface) const;
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// Dirty-rects:
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void drawToSurface(Graphics::ManagedSurface *_targetSurface, Common::Rect *dstRect, Common::Rect *clipRect) const;
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Common::Rect _dstRect;
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bool _isValid;
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bool _wantsDraw;
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Graphics::TransformStruct _transform;
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BaseSurfaceOSystem *_owner;
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bool operator==(const RenderTicket &a) const;
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const Common::Rect *getSrcRect() const { return &_srcRect; }
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private:
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Graphics::Surface *_surface;
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Common::Rect _srcRect;
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};
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} // End of namespace Wintermute
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#endif
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