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authorsandman <sandman>2002-09-24 18:55:16 (UTC)
committer sandman <sandman>2002-09-24 18:55:16 (UTC)
commit844325085130e79ec503a0ab5b8eeafa25a7bdb1 (patch) (side-by-side diff)
treeaa1c45bf90036f9a5077f63b478e77069e64b5f1
parent262dfbf10d031ab8a80948cd1485d747ad2c931b (diff)
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Documentation for the video magic (for Holger ;)
Small interface changes (better method names)
Diffstat (more/less context) (ignore whitespace changes)
-rw-r--r--noncore/multimedia/opieplayer2/lib.cpp8
-rw-r--r--noncore/multimedia/opieplayer2/xinevideowidget.cpp378
-rw-r--r--noncore/multimedia/opieplayer2/xinevideowidget.h39
3 files changed, 207 insertions, 218 deletions
diff --git a/noncore/multimedia/opieplayer2/lib.cpp b/noncore/multimedia/opieplayer2/lib.cpp
index 748ae1f..d8a0694 100644
--- a/noncore/multimedia/opieplayer2/lib.cpp
+++ b/noncore/multimedia/opieplayer2/lib.cpp
@@ -95,3 +95,3 @@ Lib::Lib(XineVideoWidget* widget) {
::null_set_mode( m_videoOutput, qt_screen->depth(), qt_screen->pixelType() );
- m_wid-> setImage ( new QImage ( Resource::loadImage("") ) );
+ m_wid-> setLogo ( new QImage ( Resource::loadImage("")));
m_wid->repaint();
@@ -228,7 +228,5 @@ void Lib::drawFrame( uint8_t* frame, int width, int height, int bytes ) {
}
-// qWarning("called draw frame %d %d", width, height);
-
- m_wid->setImage( frame, width, height, bytes );
-// m_wid->repaint(false);
+// qWarning( "called draw frame %d %d", width, height );
+ m_wid-> setVideoFrame ( frame, width, height, bytes );
}
diff --git a/noncore/multimedia/opieplayer2/xinevideowidget.cpp b/noncore/multimedia/opieplayer2/xinevideowidget.cpp
index d06d62a..9b26d41 100644
--- a/noncore/multimedia/opieplayer2/xinevideowidget.cpp
+++ b/noncore/multimedia/opieplayer2/xinevideowidget.cpp
@@ -3,5 +3,4 @@
                This file is part of the Opie Project
-
-              Copyright (c) 2002 Max Reiss <harlekin@handhelds.org>
- Copyright (c) 2002 LJP <>
+
+ Copyright (c) 2002 Robert Griebl <sandman@handhelds.org>
Copyright (c) 2002 Holger Freyther <zecke@handhelds.org>
@@ -31,3 +30,3 @@
Boston, MA 02111-1307, USA.
-
+
*/
@@ -47,2 +46,5 @@
+// 0 deg rot: copy a line from src to dst (use libc memcpy)
+
+// 180 deg rot: copy a line from src to dst reversed
@@ -50,28 +52,32 @@ static inline void memcpy_rev ( void *dst, void *src, size_t len )
{
- ((char *) src ) += len;
+ ((char *) src) += len;
- len >>= 1;
- while ( len-- )
- *((short int *) dst )++ = *--((short int *) src );
+ len >>= 1;
+ while ( len-- )
+ *((short int *) dst) ++ = *--((short int *) src);
}
-static inline void memcpy_step ( void *dst, void *src, size_t len, size_t step )
+// 90 deg rot: copy a column from src to dst
+
+static inline void memcpy_step ( void *dst, void *src, size_t len, size_t linestep )
{
- len >>= 1;
- while ( len-- ) {
- *((short int *) dst )++ = *((short int *) src );
- ((char *) src ) += step;
- }
+ len >>= 1;
+ while ( len-- ) {
+ *((short int *) dst) ++ = *((short int *) src);
+ ((char * ) src) += linestep;
+ }
}
-static inline void memcpy_step_rev ( void *dst, void *src, size_t len, size_t step )
+// 270 deg rot: copy a column from src to dst reversed
+
+static inline void memcpy_step_rev ( void *dst, void *src, size_t len, size_t linestep )
{
- len >>= 1;
+ len >>= 1;
- ((char *) src ) += ( len * step );
+ ((char *) src) += ( len * linestep );
- while ( len-- ) {
- ((char *) src ) -= step;
- *((short int *) dst )++ = *((short int *) src );
- }
+ while ( len-- ) {
+ ((char *) src) -= linestep;
+ *((short int *) dst) ++ = *((short int *) src);
+ }
}
@@ -80,11 +86,11 @@ static inline void memcpy_step_rev ( void *dst, void *src, size_t len, size_t st
XineVideoWidget::XineVideoWidget ( QWidget* parent, const char* name )
- : QWidget ( parent, name, WRepaintNoErase | WResizeNoErase )
+ : QWidget ( parent, name, WRepaintNoErase | WResizeNoErase )
{
- setBackgroundMode ( NoBackground );
+ setBackgroundMode ( NoBackground );
- m_image = 0;
- m_buff = 0;
- m_bytes_per_line_fb = qt_screen-> linestep ( );
- m_bytes_per_pixel = ( qt_screen->depth() + 7 ) / 8;
- m_rotation = 0;
+ m_logo = 0;
+ m_buff = 0;
+ m_bytes_per_line_fb = qt_screen-> linestep ( );
+ m_bytes_per_pixel = ( qt_screen-> depth ( ) + 7 ) / 8;
+ m_rotation = 0;
}
@@ -94,3 +100,3 @@ XineVideoWidget::~XineVideoWidget ( )
{
- delete m_image;
+ delete m_logo;
}
@@ -99,4 +105,4 @@ void XineVideoWidget::clear ( )
{
- m_buff = 0;
- repaint ( false );
+ m_buff = 0;
+ repaint ( false );
}
@@ -105,169 +111,153 @@ void XineVideoWidget::paintEvent ( QPaintEvent * )
{
- //qWarning( "painting <<<" );
- if ( m_buff == 0 ) {
- QPainter p ( this );
- p. fillRect ( rect ( ), black );
- if ( m_image )
- p. drawImage ( 0, 0, *m_image );
- //qWarning ( "logo\n" );
- }
- else {
-// qWarning ( "paintevent\n" );
-
- QArray <QRect> qt_bug_workaround_clip_rects;
-
- {
- QDirectPainter dp ( this );
-
- int rot = dp. transformOrientation ( ) + m_rotation;
-
- uchar *fb = dp. frameBuffer ( );
- uchar *frame = m_buff; // rot == 0 ? m_buff : m_buff + ( m_thisframe. height ( ) - 1 ) * m_bytes_per_line_frame;
-
- QRect framerect = qt_screen-> mapToDevice ( QRect ( mapToGlobal ( m_thisframe. topLeft ( )), m_thisframe. size ( )), QSize ( qt_screen-> width ( ), qt_screen-> height ( )));
-
- qt_bug_workaround_clip_rects. resize ( dp. numRects ( ));
-
- for ( int i = dp. numRects ( ) - 1; i >= 0; i-- ) {
- const QRect &clip = dp. rect ( i );
-
- qt_bug_workaround_clip_rects [i] = qt_screen-> mapFromDevice ( clip, QSize ( qt_screen-> width ( ), qt_screen-> height ( )));
-
- uchar *dst = fb + ( clip. x ( ) * m_bytes_per_pixel ) + ( clip. y ( ) * m_bytes_per_line_fb );
- uchar *src = frame;
-
- switch ( rot ) {
- case 0: src += ( (( clip. x ( ) - framerect. x ( )) * m_bytes_per_pixel ) + (( clip. y ( ) - framerect. y ( )) * m_bytes_per_line_frame ) ); break;
- case 1: src += ( (( clip. y ( ) - framerect. y ( )) * m_bytes_per_pixel ) + (( clip. x ( ) - framerect. x ( )) * m_bytes_per_line_frame ) + (( framerect. height ( ) - 1 ) * m_bytes_per_pixel ) ); break;
- case 2: src += ( (( clip. x ( ) - framerect. x ( )) * m_bytes_per_pixel ) + (( clip. y ( ) - framerect. y ( )) * m_bytes_per_line_frame ) + (( framerect. height ( ) - 1 ) * m_bytes_per_line_frame ) ); break;
- case 3: src += ( (( clip. y ( ) - framerect. y ( )) * m_bytes_per_pixel ) + (( clip. x ( ) - framerect. x ( )) * m_bytes_per_line_frame ) ); break;
- default: break;
- }
-
- uint leftfill = 0;
- uint framefill = 0;
- uint rightfill = 0;
- uint clipwidth = clip. width ( ) * m_bytes_per_pixel;
-
- if ( clip. left ( ) < framerect. left ( ))
- leftfill = (( framerect. left ( ) - clip. left ( )) * m_bytes_per_pixel ) <? clipwidth;
- if ( clip. right ( ) > framerect. right ( ))
- rightfill = (( clip. right ( ) - framerect. right ( )) * m_bytes_per_pixel ) <? clipwidth;
-
- framefill = clipwidth - ( leftfill + rightfill );
-
- for ( int y = clip. top ( ); y <= clip. bottom ( ); y++ ) {
- if (( y < framerect. top ( )) || ( y > framerect. bottom ( ))) {
- memset ( dst, 0, clipwidth );
- }
- else {
- if ( leftfill )
- memset ( dst, 0, leftfill );
-
- if ( framefill ) {
- switch ( rot ) {
- case 0: memcpy ( dst + leftfill, src, framefill ); break;
- case 1: memcpy_step ( dst + leftfill, src, framefill, m_bytes_per_line_frame ); break;
- case 2: memcpy_rev ( dst + leftfill, src, framefill ); break;
- case 3: memcpy_step_rev ( dst + leftfill, src, framefill, m_bytes_per_line_frame ); break;
- default: break;
- }
- }
- if ( rightfill )
- memset ( dst + leftfill + framefill, 0, rightfill );
- }
-
- dst += m_bytes_per_line_fb;
-
- switch ( rot ) {
- case 0: src += m_bytes_per_line_frame; break;
- case 1: src -= m_bytes_per_pixel; break;
- case 2: src -= m_bytes_per_line_frame; break;
- case 3: src += m_bytes_per_pixel; break;
- default: break;
- }
- }
- }
- }
- //qWarning ( " ||| painting |||" );
- {
- // QVFB hack by MArtin Jones
- QPainter p ( this );
-
- for ( int i = qt_bug_workaround_clip_rects. size ( ) - 1; i >= 0; i-- ) {
- p. fillRect ( QRect ( mapFromGlobal ( qt_bug_workaround_clip_rects [i]. topLeft ( )), qt_bug_workaround_clip_rects [i]. size ( )), QBrush ( NoBrush ) );
- }
- }
- }
- //qWarning( "painting >>>" );
-}
-
-
-void XineVideoWidget::setImage ( QImage* image )
-{
- delete m_image;
- m_image = image;
-}
-
-void XineVideoWidget::setImage ( uchar* img, int w, int h, int bpl )
-{
- bool rot90 = (( -m_rotation ) & 1 );
-
- if ( rot90 ) {
- int d = w;
- w = h;
- h = d;
- }
-
- m_lastframe = m_thisframe;
- m_thisframe. setRect (( width ( ) - w ) / 2, ( height ( ) - h ) / 2, w , h );
-
-// qDebug ( "Frame: %d,%d - %dx%d", ( width ( ) - w ) / 2, ( height ( ) - h ) / 2, w , h );
-
- m_buff = img;
- m_bytes_per_line_frame = bpl;
-
- repaint ((( m_thisframe & m_lastframe ) != m_lastframe ) ? m_lastframe : m_thisframe, false );
-}
-
-void XineVideoWidget::resizeEvent ( QResizeEvent * )
-{
- QSize s = size ( );
- bool fs = ( s == qApp-> desktop ( )-> size ( ));
-
- m_rotation = fs ? -qt_screen-> transformOrientation ( ) : 0;
-
- if ( fs && qt_screen-> isTransformed ( )) {
- s = qt_screen-> mapToDevice ( s );
- }
-
-// qDebug ( "\n\nResize: %dx%d, Rot: %d", s.width(),s.height(),m_rotation );
-
- emit videoResized ( s );
-}
-
-
-void XineVideoWidget::mousePressEvent ( QMouseEvent * /*me*/ )
-{
- QWidget *p = parentWidget ( );
+ if ( m_buff == 0 ) {
+ QPainter p ( this );
+ p. fillRect ( rect ( ), black );
+ if ( m_logo )
+ p. drawImage ( 0, 0, *m_logo );
+ }
+ else {
+ // Qt needs to be notified which areas were really updated .. strange
+ QArray <QRect> qt_bug_workaround_clip_rects;
+
+ {
+ QDirectPainter dp ( this );
+
+ int rot = dp. transformOrientation ( ) + m_rotation; // device rotation + custom rotation
+
+ uchar *fb = dp. frameBuffer ( );
+ uchar *frame = m_buff;
+
+ // where is the video frame in fb coordinates
+ QRect framerect = qt_screen-> mapToDevice ( QRect ( mapToGlobal ( m_thisframe. topLeft ( )), m_thisframe. size ( )), QSize ( qt_screen-> width ( ), qt_screen-> height ( )));
+
+ qt_bug_workaround_clip_rects. resize ( dp. numRects ( ));
+
+ for ( int i = dp. numRects ( ) - 1; i >= 0; i-- ) {
+ const QRect &clip = dp. rect ( i );
+
+ qt_bug_workaround_clip_rects [ i ] = qt_screen-> mapFromDevice ( clip, QSize ( qt_screen-> width ( ), qt_screen-> height ( )));
+
+ uchar *dst = fb + ( clip. x ( ) * m_bytes_per_pixel ) + ( clip. y ( ) * m_bytes_per_line_fb ); // clip x/y in the fb
+ uchar *src = frame;
+
+ // Adjust the start the source data based on the rotation (xine frame)
+ switch ( rot ) {
+ case 0: src += ((( clip. x ( ) - framerect. x ( )) * m_bytes_per_pixel ) + (( clip. y ( ) - framerect. y ( )) * m_bytes_per_line_frame )); break;
+ case 1: src += ((( clip. y ( ) - framerect. y ( )) * m_bytes_per_pixel ) + (( clip. x ( ) - framerect. x ( )) * m_bytes_per_line_frame ) + (( framerect. height ( ) - 1 ) * m_bytes_per_pixel )); break;
+ case 2: src += ((( clip. x ( ) - framerect. x ( )) * m_bytes_per_pixel ) + (( clip. y ( ) - framerect. y ( )) * m_bytes_per_line_frame ) + (( framerect. height ( ) - 1 ) * m_bytes_per_line_frame )); break;
+ case 3: src += ((( clip. y ( ) - framerect. y ( )) * m_bytes_per_pixel ) + (( clip. x ( ) - framerect. x ( )) * m_bytes_per_line_frame )); break;
+ default: break;
+ }
+
+ // all of the following widths/heights are fb relative (0deg rotation)
+
+ uint leftfill = 0; // black border on the "left" side of the video frame
+ uint framefill = 0; // "width" of the video frame
+ uint rightfill = 0; // black border on the "right" side of the video frame
+ uint clipwidth = clip. width ( ) * m_bytes_per_pixel; // "width" of the current clip rect
+
+ if ( clip. left ( ) < framerect. left ( ))
+ leftfill = (( framerect. left ( ) - clip. left ( )) * m_bytes_per_pixel ) < ? clipwidth;
+ if ( clip. right ( ) > framerect. right ( ))
+ rightfill = (( clip. right ( ) - framerect. right ( )) * m_bytes_per_pixel ) < ? clipwidth;
+
+ framefill = clipwidth - ( leftfill + rightfill );
+
+ for ( int y = clip. top ( ); y <= clip. bottom ( ); y++ ) {
+ if (( y < framerect. top ( )) || ( y > framerect. bottom ( ))) {
+ // "above" or "below" the video -> black
+ memset ( dst, 0, clipwidth );
+ }
+ else {
+ if ( leftfill )
+ memset ( dst, 0, leftfill ); // "left" border -> black
+
+ if ( framefill ) { // blit in the video frame
+ // see above for an explanation of the different memcpys
+
+ switch ( rot ) {
+ case 0: memcpy ( dst + leftfill, src, framefill ); break;
+ case 1: memcpy_step ( dst + leftfill, src, framefill, m_bytes_per_line_frame ); break;
+ case 2: memcpy_rev ( dst + leftfill, src, framefill ); break;
+ case 3: memcpy_step_rev ( dst + leftfill, src, framefill, m_bytes_per_line_frame ); break;
+ default: break;
+ }
+ if ( rightfill )
+ memset ( dst + leftfill + framefill, 0, rightfill ); // "right" border -> black
+ }
+
+ dst += m_bytes_per_line_fb; // advance one line in the framebuffer
+
+ // advance one "line" in the xine frame data
+ switch ( rot ) {
+ case 0: src += m_bytes_per_line_frame; break;
+ case 1: src -= m_bytes_per_pixel; break;
+ case 2: src -= m_bytes_per_line_frame; break;
+ case 3: src += m_bytes_per_pixel; break;
+ default: break;
+ }
+ }
+ }
+
+ {
+ // QVFB hack by Martin Jones
+ // We need to "touch" all affected clip rects with a normal QPainter in addition to the QDirectPainter
+
+ QPainter p ( this );
+
+ for ( int i = qt_bug_workaround_clip_rects. size ( ) - 1; i >= 0; i-- ) {
+ p. fillRect ( QRect ( mapFromGlobal ( qt_bug_workaround_clip_rects [ i ]. topLeft ( )), qt_bug_workaround_clip_rects [ i ]. size ( )), QBrush ( NoBrush ));
+ }
+ }
+ }
+ }
+
+ QImage *XineVideoWidget::logo ( ) const {
+ return m_logo;
+ }
- if ( p ) {
- // QMouseEvent pme ( QEvent::MouseButtonPress, mapToParent ( me-> pos ( )), me-> globalPos ( ), me-> button ( ), me-> state ( ));
+ void XineVideoWidget::setLogo ( QImage * image ) {
+ delete m_logo;
+ m_logo = image;
+ }
- // QApplication::sendEvent ( p, &pme );
- // emit clicked();
- }
-}
-
-void XineVideoWidget::mouseReleaseEvent ( QMouseEvent * /*me*/ )
-{
- QWidget *p = parentWidget ( );
+ void XineVideoWidget::setVideoFrame ( uchar * img, int w, int h, int bpl ) {
+ bool rot90 = (( -m_rotation ) & 1 );
- if ( p ) {
- // QMouseEvent pme ( QEvent::MouseButtonRelease, mapToParent ( me-> pos ( )), me-> globalPos ( ), me-> button ( ), me-> state ( ));
+ if ( rot90 ) { // if the rotation is 90 or 270 we have to swap width / height
+ int d = w;
+ w = h;
+ h = d;
+ }
- // QApplication::sendEvent ( p, &pme );
- emit clicked();
- }
-}
+ m_lastframe = m_thisframe;
+ m_thisframe. setRect (( width ( ) - w ) / 2, ( height ( ) - h ) / 2, w , h );
+
+ m_buff = img;
+ m_bytes_per_line_frame = bpl;
+
+ // only repaint the area that *really* needs to be repainted
+
+ repaint ((
+ }
+
+ void XineVideoWidget::resizeEvent ( QResizeEvent * ) {
+ QSize s = size ( );
+ bool fs = ( s == qApp-> desktop ( ) -> size ( ));
+
+ // if we are in fullscreen mode, do not rotate the video
+ // (!! the paint routine uses m_rotation + qt_screen-> transformOrientation() !!)
+
+ m_rotation = fs ? -qt_screen-> transformOrientation ( ) : 0;
+
+ if ( fs && qt_screen-> isTransformed ( ))
+ s = qt_screen-> mapToDevice ( s );
+
+ emit videoResized ( s );
+ }
+
+
+ void XineVideoWidget::mouseReleaseEvent ( QMouseEvent * ) {
+ emit clicked ( );
+ }
diff --git a/noncore/multimedia/opieplayer2/xinevideowidget.h b/noncore/multimedia/opieplayer2/xinevideowidget.h
index c5101da..33f1470 100644
--- a/noncore/multimedia/opieplayer2/xinevideowidget.h
+++ b/noncore/multimedia/opieplayer2/xinevideowidget.h
@@ -3,4 +3,3 @@
-              Copyright (c) 2002 Max Reiss <harlekin@handhelds.org>
- Copyright (c) 2002 LJP <>
+ Copyright (c) 2002 Robert Griebl <sandman@handhelds.org>
Copyright (c) 2002 Holger Freyther <zecke@handhelds.org>
@@ -40,17 +39,19 @@
class QImage;
+
+
class XineVideoWidget : public QWidget {
Q_OBJECT
+
public:
- XineVideoWidget( QWidget* parent, const char* name );
- ~XineVideoWidget();
- QImage *image() { return m_image; };
- void setImage( QImage* image );
- void setImage( uchar* image, int width, int height, int linestep);
- void clear() ;
+ XineVideoWidget ( QWidget* parent, const char* name );
+ ~XineVideoWidget ( );
+ QImage *logo ( ) const;
+ void setLogo ( QImage *image );
+ void setVideoFrame ( uchar *image, int width, int height, int linestep );
+ void clear ( );
protected:
- void paintEvent( QPaintEvent* p );
+ void paintEvent( QPaintEvent *p );
void resizeEvent ( QResizeEvent *r );
- void mousePressEvent ( QMouseEvent *e );
void mouseReleaseEvent ( QMouseEvent *e );
@@ -58,3 +59,3 @@ protected:
signals:
- void clicked();
+ void clicked ( );
void videoResized ( const QSize &s );
@@ -62,11 +63,11 @@ signals:
private:
- QRect m_lastframe;
- QRect m_thisframe;
+ QRect m_lastframe;
+ QRect m_thisframe;
- uchar* m_buff;
- int m_bytes_per_line_fb;
- int m_bytes_per_line_frame;
- int m_bytes_per_pixel;
- QImage* m_image;
- int m_rotation;
+ uchar *m_buff;
+ int m_bytes_per_line_fb;
+ int m_bytes_per_line_frame;
+ int m_bytes_per_pixel;
+ QImage *m_logo;
+ int m_rotation;
};