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141 lines
3.5 KiB
141 lines
3.5 KiB
15 years ago
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/*
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base clase for X11 images (stores important parameters and dither pic)
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Copyright (C) 2000 Martin Vogt
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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 Library General Public License as published by
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the Free Software Foundation.
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For more information look at the file COPYRIGHT in this package
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*/
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#ifndef __IMAGEBASE_H
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#define __IMAGEBASE_H
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#include <stdio.h>
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "yuvPicture.h"
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#include "dither/ditherWrapper.h"
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#define _IMAGE_NONE 0
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#define _IMAGE_DESK 1
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#define _IMAGE_FULL 2
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#define _IMAGE_DOUBLE 4
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#define _IMAGE_RESIZE 8
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#define _IMAGE_DISABLED 16
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#define HAS_DESK(image) ((((image)->supportedModes) & _IMAGE_DESK) > 0)
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#define HAS_FULL(image) ((((image)->supportedModes) & _IMAGE_FULL) > 0)
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#define HAS_DOUBLE(image) ((((image)->supportedModes) & _IMAGE_DOUBLE) > 0)
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#define HAS_RESIZE(image) ((((image)->supportedModes) & _IMAGE_RESIZE) > 0)
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#define IS_DISABLED(image) ((((image)->supportedModes) & _IMAGE_DISABLED) > 0)
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#define IS_DESK(mode) (((mode) & _IMAGE_DESK) > 0)
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#define IS_FULL(mode) (((mode) & _IMAGE_FULL) > 0)
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#define IS_DOUBLE(mode) (((mode) & _IMAGE_DOUBLE) > 0)
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#define IS_RESIZEABLE(mode) (((mode) & _IMAGE_RESIZE) > 0)
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/**
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This class creates from a given X11 Window a special image to
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display.
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An image has some characteristics, like startadress, width height,
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if each row has a terminating modifier etc...
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The image is resposible for the conversion from the yuv
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format to the destination.
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It is initialized with the constructed x11Window.
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During a mode-switch (which is handled by x11window) the following
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sequence is called:
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support() ->true/false if this image type is supported
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(switching to it is allowed)
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openImage() called once when we switch to this
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image type
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ditherImage(..) for the conversion from yuv->rgb
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obviously called for every image
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putImage(..) time for display it
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closeImage() called once, when we leave this image type
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This sequence is necessary, because the user likey to switch
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form desktop display to dga fullscreen.
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The following image classes seems to be useful:
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imageDeskX11 : standard ximage, maybe with shared mem support
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full software rendering
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imageDeskXV : image with hardware yuv->rgb rendering
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imageDGAFull : dga 2.0 full software rendering (needs root)
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imageXVFull : fullscreen hardware yuv->rgb rendering
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The hierarchy is as follows:
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(desk mode)
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imageStdX11 : fallback, should work everywhere
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imageStdXV : if supported imageStdX11 is disabled
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(fullscreen mode)
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imageDGAFull :
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imageXVFull :
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The supported switches between the modes are
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desktop <-> fullscreen mode.
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*/
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class XWindow;
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class ImageBase {
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private:
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char *identifier;
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public:
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unsigned int supportedModes;
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public:
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ImageBase();
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virtual ~ImageBase();
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virtual void init(XWindow* xWindow, YUVPicture* pic = NULL);
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virtual int support();
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virtual int openImage(int imageMode);
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virtual int closeImage();
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virtual void ditherImage(YUVPicture* pic);
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virtual void putImage();
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virtual void putImage(int w,int h);
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virtual int active() { return true; }
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void setIdentifier(const char *id);
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char *getIdentifier();
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};
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#endif
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