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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.
*
*/
#ifndef ZVISION_RENDER_MANAGER_H
#define ZVISION_RENDER_MANAGER_H
#include "common/types.h"
#include "common/rect.h"
#include "zvision/render_table.h"
class OSystem;
namespace Common {
class String;
class SeekableReadStream;
}
namespace Video {
class VideoDecoder;
}
namespace ZVision {
class RenderManager {
public:
RenderManager(OSystem *system, const int width, const int height);
~RenderManager();
private:
OSystem *_system;
const int _width;
const int _height;
RenderTable _renderTable;
Common::SeekableReadStream *_currentBackground;
Video::VideoDecoder *_currentVideo;
byte *_scaledVideoFrameBuffer;
bool _needsScreenUpdate;
public:
void initialize();
/**
* Blits the image or a portion of the image to the screen. Actual screen updates won't happen until the end of the frame.
* The image will be clipped to fit inside the window.
*
* @param fileName Name of the image file
* @param destinationX X position where the image should be put
* @param destinationY Y position where the image should be put
* @param subRectangle The subrectangle of the image that should be rendered. If this is an empty rectangle, it will blit the entire image.
*/
void renderImageToScreen(const Common::String &fileName, uint32 destinationX, uint32 destinationY, Common::Rect subRectangle = Common::Rect(0, 0, 0, 0), bool autoCenter = false);
/**
* Blits the image or a portion of the image to the screen. Actual screen updates won't happen until the end of the frame.
* The image will be clipped to fit inside the window.
*
* @param stream Stream to read the image data from
* @param destinationX X position where the image should be put
* @param destinationY Y position where the image should be put
* @param subRectangle The subrectangle of the image that should be rendered. If this is an empty rectangle, it will blit the entire image.
*/
void renderImageToScreen(Common::SeekableReadStream &stream, uint32 destinationX, uint32 destinationY, Common::Rect subRectangle = Common::Rect(0, 0, 0, 0), bool autoCenter = false);
/**
* Sets the current background image to be used by the RenderManager and immediately
* blits it to the screen. (It won't show up until the end of the frame)
*
* @param fileName The name of the image file
*/
void setBackgroundImage(const Common::String &fileName);
RenderTable *getRenderTable();
bool needsScreenUpdate() { return _needsScreenUpdate; };
private:
void renderSubRectToScreen(uint16 *buffer, uint32 imageWidth, uint32 imageHeight, uint32 horizontalPitch, uint32 destinationX, uint32 destinationY, Common::Rect subRectangle, bool autoCenter);
};
} // End of namespace ZVision
#endif
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