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188 lines
5.0 KiB
188 lines
5.0 KiB
/***************************************************************************
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copyright : (C) 2007 by Sebastian Held
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email : sebastian.held@gmx.de
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***************************************************************************/
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/***************************************************************************
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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 version 2 of the GNU General Public License as *
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* published by the Free Software Foundation; *
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* *
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***************************************************************************/
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#ifndef BARCODE_V4L_H
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#define BARCODE_V4L_H
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#define GETELEM(array,index,default) \
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(index < sizeof(array)/sizeof(array[0]) ? array[index] : default)
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/*
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* Taken from xawtv-3.5.9 source 8/15/01 by George Staikos <staikos@kde.org>
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*/
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#ifdef __STRICT_ANSI__
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#undef __STRICT_ANSI__
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#define FOO__STRICT_ANSI__
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#endif
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#if defined(__linux__)
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# include <asm/types.h>
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#endif
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#ifdef FOO__STRICT_ANSI__
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#define __STRICT_ANSI__ 1
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#undef FOO__STRICT_ANSI__
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#endif
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#include "config.h"
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#include VIDEODEV_HEADER
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#include <tqstring.h>
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#include <tqimage.h>
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namespace barcodeRecognition {
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struct ng_video_fmt {
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unsigned int fmtid; /* VIDEO_* */
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unsigned int width;
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unsigned int height;
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unsigned int bytesperline; /* zero for compressed formats */
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};
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enum { CAN_OVERLAY=1, CAN_CAPTURE=2, CAN_TUNE=4, NEEDS_CHROMAKEY=8 };
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enum { VIDEO_NONE=0, VIDEO_RGB08, VIDEO_GRAY, VIDEO_RGB15_LE, VIDEO_RGB16_LE,
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VIDEO_RGB15_BE, VIDEO_RGB16_BE, VIDEO_BGR24, VIDEO_BGR32, VIDEO_RGB24,
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VIDEO_RGB32, VIDEO_LUT2, VIDEO_LUT4, VIDEO_YUYV, VIDEO_YUV422P,
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VIDEO_YUV420P, VIDEO_MJPEG, VIDEO_JPEG, VIDEO_UYVY, VIDEO_FMT_COUNT };
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extern const char *device_cap[];
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extern const unsigned int ng_vfmt_to_depth[];
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extern const char* ng_vfmt_to_desc[];
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/* lookup tables */
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#define CLIP 320
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extern unsigned int ng_yuv_gray[256];
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extern unsigned int ng_yuv_red[256];
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extern unsigned int ng_yuv_blue[256];
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extern unsigned int ng_yuv_g1[256];
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extern unsigned int ng_yuv_g2[256];
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extern unsigned int ng_clip[256 + 2 * CLIP];
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void ng_color_yuv2rgb_init();
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class video_converter
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{
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public:
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video_converter() {;}
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virtual ~video_converter() {;}
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virtual void init( ng_video_fmt* ) {;}
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virtual void exit() {;}
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virtual void frame( TQByteArray*, const TQByteArray*, ng_video_fmt ) {;}
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int fmtid_in() {return m_fmtid_in;}
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int fmtid_out() {return m_fmtid_out;}
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protected:
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int m_fmtid_in, m_fmtid_out;
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};
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class yuv422p_to_rgb24 : public video_converter
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{
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public:
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yuv422p_to_rgb24() {m_fmtid_in=VIDEO_YUV422P; m_fmtid_out=VIDEO_RGB24;}
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virtual void frame( TQByteArray *, const TQByteArray *, ng_video_fmt ) {;}
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};
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class yuv422_to_rgb24 : public video_converter
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{
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public:
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yuv422_to_rgb24() {m_fmtid_in=VIDEO_YUYV; m_fmtid_out=VIDEO_RGB24;}
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virtual void frame( TQByteArray *, const TQByteArray *, ng_video_fmt ) {;}
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};
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class yuv420p_to_rgb24 : public video_converter
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{
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public:
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yuv420p_to_rgb24() {m_fmtid_in=VIDEO_YUV420P; m_fmtid_out=VIDEO_RGB24;}
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virtual void frame( TQByteArray *, const TQByteArray *, ng_video_fmt );
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};
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class ng_vid_driver
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{
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public:
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static ng_vid_driver *createDriver( TQString device );
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static int xioctl( int fd, int cmd, void *arg );
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/* open/close */
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virtual bool open2( TQString device ) = 0;
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virtual void close() = 0;
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/* attributes */
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virtual TQString get_devname() {return m_name;}
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virtual int capabilities() = 0;
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/* capture */
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virtual bool setformat( ng_video_fmt *fmt ) = 0;
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virtual TQByteArray* getimage2() = 0; /* single image */
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// video converter
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static void register_video_converter( video_converter *conv );
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static video_converter *find_video_converter( int out, int in );
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protected:
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TQString m_name;
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static TQPtrList<video_converter> m_converter;
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};
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class barcode_v4l
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{
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public:
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barcode_v4l();
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~barcode_v4l();
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TQImage grab_one2();
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bool isOpen();
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protected:
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bool grab_init();
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TQString m_devname;
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int m_grab_width, m_grab_height;
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ng_vid_driver *m_drv;
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ng_video_fmt m_fmt, m_fmt_drv;
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video_converter *m_conv;
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};
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class ng_vid_driver_v4l : public ng_vid_driver
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{
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public:
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ng_vid_driver_v4l();
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/* open/close */
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//virtual bool open( TQString device );
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virtual bool open2( TQString device );
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virtual void close();
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/* attributes */
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virtual int capabilities();
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/* capture */
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virtual bool setformat( ng_video_fmt *fmt );
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//virtual ng_video_buf* getimage(); /* single image */
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virtual TQByteArray* getimage2(); /* single image */
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protected:
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bool read_setformat( ng_video_fmt *fmt );
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TQByteArray* read_getframe2();
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void *m_drv;
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int m_fd;
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video_capability m_capability;
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video_picture m_pict;
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video_window m_win;
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/* capture */
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bool m_use_read;
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ng_video_fmt m_fmt;
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unsigned short format2palette[VIDEO_FMT_COUNT];
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};
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} // namespace
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#endif
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