| -rw-r--r-- | noncore/multimedia/camera/mainwindow.cpp | 7 | ||||
| -rw-r--r-- | noncore/multimedia/camera/zcameraio.cpp | 137 | ||||
| -rw-r--r-- | noncore/multimedia/camera/zcameraio.h | 35 |
3 files changed, 166 insertions, 13 deletions
diff --git a/noncore/multimedia/camera/mainwindow.cpp b/noncore/multimedia/camera/mainwindow.cpp index 2cca9f9..4218232 100644 --- a/noncore/multimedia/camera/mainwindow.cpp +++ b/noncore/multimedia/camera/mainwindow.cpp @@ -19,8 +19,10 @@ #include <qvbox.h> #include <qpushbutton.h> #include <qlabel.h> +#include <qdirectpainter_qws.h> + #include <qpe/resource.h> #include <opie/ofiledialog.h> CameraMainWindow::CameraMainWindow( QWidget * parent, const char * name, WFlags f ) @@ -45,13 +47,18 @@ CameraMainWindow::~CameraMainWindow() void CameraMainWindow::clickedSnapShot() { + QDirectPainter fb( l ); + ZCameraIO::instance()->snapshot( fb.frameBuffer() ); + + /* QImage i; QPixmap p; if ( ZCameraIO::instance()->snapshot( &i ) ) { p.convertFromImage( i ); l->setPixmap( p ); } + */ } diff --git a/noncore/multimedia/camera/zcameraio.cpp b/noncore/multimedia/camera/zcameraio.cpp index e74136f..7343dca 100644 --- a/noncore/multimedia/camera/zcameraio.cpp +++ b/noncore/multimedia/camera/zcameraio.cpp @@ -20,29 +20,137 @@ #include <errno.h> #include <string.h> #include <fcntl.h> #include <unistd.h> +#include <stdio.h> #include <qimage.h> #include <opie2/odebug.h> ZCameraIO* ZCameraIO::_instance = 0; +ZCameraIO* ZCameraIO::instance() +{ + if ( !ZCameraIO::_instance ) + { + odebug << "Creating ZCameraIO::_instance" << oendl; + ZCameraIO::_instance = new ZCameraIO(); + } + return ZCameraIO::_instance; +} + + ZCameraIO::ZCameraIO() + :_height( 0 ), _width( 0 ), _zoom( 0 ), _rot( 0 ), _readlen( 0 ) { - _driver = open( "/dev/sharp_zdc", O_RDWR ); + _driver = ::open( "/dev/sharp_zdc", O_RDWR ); if ( _driver == -1 ) oerr << "Can't open camera driver: " << strerror(errno) << oendl; + else + init(); +} - ZCameraIO::_instance = this; -}; + +void ZCameraIO::init() +{ + if ( ZCameraIO::_instance ) + ofatal << "Don't create more than one ZCameraIO instances." << oendl; + else + { + setReadMode( STATUS ); + } +} ZCameraIO::~ZCameraIO() { if ( _driver != -1 ) - close( _driver ); + ::close( _driver ); +} + + +inline bool ZCameraIO::isOpen() const +{ + return _driver != -1; +} + + +inline bool ZCameraIO::isShutterPressed() +{ + return _status[0] == 'S'; + clearShutterLatch(); +} + + +inline bool ZCameraIO::isFinderReversed() const +{ + return _status[1] == 'M'; +} + + +inline bool ZCameraIO::isCapturing() const +{ + return _status[2] == 'C'; +} + + +inline bool ZCameraIO::isAvailable() const +{ + return _status[3] == 'A'; +} + + +bool ZCameraIO::setCaptureFrame( int width, int height, int zoom, bool rot ) +{ + char b[100]; + sprintf( b, "%c=%d,%d,%d,%d", rot ? 'R':'S', width, height, zoom, width*2 ); + if ( write( b ) ) + { + _width = width; + _height = _height; + _zoom = zoom; + _rot = rot; + _readlen = 2 * _width * _height; // camera is fixed @ 16 bits per pixel + return true; + } + return false; +} + + +void ZCameraIO::setReadMode( int mode ) +{ + char b[4]; + sprintf( b, "M=%d", mode ); + write( b, mode <= 9 ? 3 : 4 ); + if ( mode & 1 ) // STATUS bit is set + read( _status, 4 ); +} + + +void ZCameraIO::clearShutterLatch() +{ + char b = 'B'; + write( &b, 1 ); +} + + +bool ZCameraIO::read( char* b, int len ) +{ + int rlen = ::read( _driver, b, len ); + odebug << "read " << rlen << " from driver." << oendl; + return rlen == len; +} + + +bool ZCameraIO::write( char* buf, int len ) +{ + if ( !len ) + len = strlen( buf ); + + odebug << "writing '" << buf << "' to driver." << oendl; + + return ::write( _driver, buf, len ) == len; } bool ZCameraIO::snapshot( QImage* image ) @@ -60,16 +168,15 @@ bool ZCameraIO::snapshot( QImage* image ) return result == sizeof buf; */ - uchar buf[76800]; - uchar* bp = buf; - uchar* p; - + unsigned char buf[76800]; + unsigned char* bp = buf; + unsigned char* p; int fd = open( "/tmp/cam", O_RDONLY ); - if ( read( fd, buf, sizeof buf ) != sizeof buf ) - qDebug( "WARNING: couldn't read image!" ); + if ( ::read( fd, buf, sizeof buf ) != sizeof buf ) + owarn << "Couldn't read image from /dev/sharp_zdc" << oendl; image->create( 240, 160, 16 ); for ( int i = 0; i < 160; ++i ) { @@ -86,4 +193,14 @@ bool ZCameraIO::snapshot( QImage* image ) } return true; } + +bool ZCameraIO::snapshot( uchar* buf ) +{ + int fd = open( "/tmp/cam", O_RDONLY ); + if ( ::read( fd, buf, 76800 ) != 76800 ) + owarn << "Couldn't read image from /dev/sharp_zdc" << oendl; + + return true; +} + diff --git a/noncore/multimedia/camera/zcameraio.h b/noncore/multimedia/camera/zcameraio.h index 1690aa6..bc4926b 100644 --- a/noncore/multimedia/camera/zcameraio.h +++ b/noncore/multimedia/camera/zcameraio.h @@ -20,17 +20,46 @@ class QImage; class ZCameraIO { public: - ZCameraIO(); virtual ~ZCameraIO(); - bool isOpen() const { return _driver != -1; }; + enum ReadMode + { + IMAGE = 0, STATUS = 1, + FASTER = 0, BETTER = 2, + XNOFLIP = 0, XFLIP = 4, + YNOFLIP = 0, YFLIP = 8 + }; + + bool setCaptureFrame( int w, int h, int zoom = 256, bool rot = true ); + void setReadMode( int = IMAGE | XFLIP | YFLIP ); + + bool isShutterPressed(); // not const, because it calls clearShutterLatch + bool isAvailable() const; + bool isCapturing() const; + bool isFinderReversed() const; + + bool isOpen() const; bool snapshot( QImage* ); - static ZCameraIO* instance() { return _instance; }; + bool snapshot( unsigned char* ); + static ZCameraIO* instance(); + + protected: + ZCameraIO(); + void clearShutterLatch(); + void init(); + bool read( char*, int ); + bool write( char*, int = 0 ); private: int _driver; + char _status[4]; static ZCameraIO* _instance; + int _height; + int _width; + int _zoom; + bool _rot; + int _readlen; }; #endif |