Optimized video repaint for 0 and 180 deg rotation - 90 and 270 are there

but untested

2 files changed, 159 insertions, 29 deletions

diff --git a/noncore/multimedia/opieplayer2/xinevideowidget.cpp b/noncore/multimedia/opieplayer2/xinevideowidget.cpp
index b5a714e..e46c4df 100644
--- a/noncore/multimedia/opieplayer2/xinevideowidget.cpp
+++ b/noncore/multimedia/opieplayer2/xinevideowidget.cpp
@@ -13,113 +13,246 @@
 :`=1 )Y*s>-.--   :           the terms of the GNU General Public
 .="- .-=="i,     .._         License as published by the Free Software
  - .   .-<_>     .<>         Foundation; either version 2 of the License,
      ._= =}       :          or (at your option) any later version.
     .%`+i>       _;_.
     .i_,=:_.      -<s.       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
 ..}^=.=       =       ;      Library General Public License for more
 ++=   -.     .`     .:       details.
  :     =  ...= . :.=-
  -.   .:....=;==+<;          You should have received a copy of the GNU
   -_. . .   )=.  =           Library General Public License along with
     --        :-=`           this library; see the file COPYING.LIB.
                              If not, write to the Free Software Foundation,
                              Inc., 59 Temple Place - Suite 330,
                              Boston, MA 02111-1307, USA.
 
 */
 
 #include <qimage.h>
 #include <qpainter.h>
 #include <qgfx_qws.h>
 #include <qdirectpainter_qws.h>
 #include <qsize.h>
 
 #include <qpe/resource.h>
 
 #include "xinevideowidget.h"
 
+static inline void memcpy_rev ( void *dst, void *src, size_t len )
+{
+	((char *) src ) += len;
+
+	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 )
+{
+	len >>= 1;
+	while ( len-- ) {
+		*((short int *) dst )++ = *((short int *) src );
+		((char *) src ) += step;
+	}
+}
+
+static inline void memcpy_step_rev ( void *dst, void *src, size_t len, size_t step )
+{
+	len >>= 1;
+	
+	((char *) src ) += ( len * step );
+	
+	while ( len-- ) {
+		((char *) src ) -= step;
+		*((short int *) dst )++ = *((short int *) src );
+	}
+}
+
+
 XineVideoWidget::XineVideoWidget( int width,
                                   int height,
                                   QWidget* parent,
                                   const char* name )
     : QWidget( parent, name, WRepaintNoErase | WResizeNoErase )
 {
     m_image = new QImage( width, height,  qt_screen->depth() );
     m_buff = 0;
     setBackgroundMode( NoBackground);
 /*    QImage image = Resource::loadImage("SoundPlayer");
     image = image.smoothScale( width, height );
 
     m_image = new QImage( image );*/
 }
-XineVideoWidget::~XineVideoWidget() {
+
+XineVideoWidget::~XineVideoWidget ( )
+{
     delete m_image;
 }
-void XineVideoWidget::clear() {
+
+void XineVideoWidget::clear ( )
+{
     m_buff = 0;
     repaint(false);
 }
-void XineVideoWidget::paintEvent( QPaintEvent* e ) {
+
+void XineVideoWidget::paintEvent ( QPaintEvent * )
+{
     qWarning("painting");
     if (m_buff == 0 ) {
 	    QPainter p(this );
 	    p.fillRect( rect(), black );
         p.drawImage( 0, 0, *m_image );
         qWarning ( "logo\n" );
     }
     else { 
-        qWarning("paitnevent\n");
+		qWarning ( "paintevent\n" );
+		
+		QArray <QRect> qt_bug_workaround_clip_rects;
+		
         {
+			QDirectPainter dp ( this );
         	
-        	if (( m_thisframe & m_lastframe ) != m_lastframe ) {
-        		QPainter p ( this );
-				p. fillRect ( m_lastframe, black );				
+			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 = QRect ( mapToGlobal ( m_thisframe. topLeft ( )), m_thisframe. size ( ));
+
+			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] = clip;
+				
+				int rot = dp. transformOrientation ( );
+
+				if ( rot == 0 || rot == 180 ) {			
+					uchar *dst = fb + ( clip. x ( ) * m_bytes_per_pixel ) + ( clip. y ( ) * m_bytes_per_line_fb ); 
+					uchar *src = frame + (( clip. x ( ) - framerect. x ( )) * m_bytes_per_pixel ) + (( clip. y ( ) - framerect. y ( )) * m_bytes_per_line_frame );
+					
+					if ( rot == 180 )
+						src += (( framerect. height ( ) - 1 ) * m_bytes_per_line_frame );
+										
+					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 ) {
+								if ( rot == 0 )
+									memcpy ( dst + leftfill, src, framefill ); 	
+								else
+									memcpy_rev ( dst + leftfill, src, framefill );
 		}
-		{
-			QDirectPainter dp ( this );
+							if ( rightfill )
+								memset ( dst + leftfill + framefill, 0, rightfill );
+						}
+						
+						dst += m_bytes_per_line_fb;
+						src += ( rot == 0 ? m_bytes_per_line_frame : -m_bytes_per_line_frame );
+					}
+				}
+				else { // rot == 90 || rot == 270
+					uchar *dst = fb + ( clip. y ( ) * m_bytes_per_pixel ) + ( clip. x ( ) * m_bytes_per_line_fb ); 
+					uchar *src = frame + (( clip. x ( ) - framerect. x ( )) * m_bytes_per_pixel ) + (( clip. y ( ) - framerect. y ( )) * m_bytes_per_line_frame );
+					
+					if ( rot == 270 )
+						src += (( framerect. height ( ) - 1 ) * m_bytes_per_line_frame );
+										
+					uint leftfill = 0;
+					uint framefill = 0;
+					uint rightfill = 0;
+					uint clipwidth = clip. height ( ) * m_bytes_per_pixel;
+					
+					if ( clip. bottom ( ) > framerect. bottom ( ))
+						leftfill = (( clip. bottom ( ) - framerect. bottom ( )) * m_bytes_per_pixel ) <? clipwidth;
+					if ( clip. top ( ) < framerect. top ( ))
+						rightfill = (( framerect. top ( ) - framerect. top ( )) * m_bytes_per_pixel ) <? clipwidth;
+					
+					framefill = clipwidth - ( leftfill + rightfill );
+					
+					for ( int y = clip. left ( ); y <= clip. right ( ); y++ ) {
+						if (( y < framerect. left ( )) || ( y > framerect. right ( ))) {
+							memset ( dst, 0, clipwidth );
+						}
+						else {
+							if ( leftfill )
+								memset ( dst, 0, leftfill );
 			
-			uchar* dst =  dp.frameBuffer() + (m_thisframe. y ( ) + dp.yOffset()  ) * linestep +
-				(m_thisframe. x ( ) + dp.xOffset() )  * m_bytes_per_pixel;
-			uchar* frame = m_buff;
-			for(int  y = 0; y < m_thisframe. height ( ); y++ ) {
-				memcpy( dst, frame, m_bytes );
-				frame += m_bytes;
-				dst += linestep;
+							if ( framefill ) {
+								if ( rot == 90 )
+									memcpy_step ( dst + leftfill, src, framefill, m_bytes_per_line_frame );
+								else
+									memcpy_step_rev ( dst + leftfill, src, framefill, m_bytes_per_line_frame );
+							}	
+							if ( rightfill )
+								memset ( dst + leftfill + framefill, 0, rightfill );
+						}
+						
+						dst += m_bytes_per_line_fb;
+						src += ( rot == 90 ? +1 : -1 ); // m_bytes_per_line_frame : -m_bytes_per_line_frame );
+					}					
+				}
 			}
         }
         {
 	 		// QVFB hack by MArtin Jones
 			QPainter p ( this );
-			p. fillRect ( m_thisframe, QBrush ( NoBrush ));		
+			
+			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 ) );
 		}
     }
 }
-int XineVideoWidget::height() const{
+}
+
+int XineVideoWidget::height ( ) const
+{
     return m_image->height();
 }
-int XineVideoWidget::width() const{
+
+int XineVideoWidget::width ( ) const
+{
     return m_image->width();
 }
-void XineVideoWidget::setImage( QImage* image ) {
+
+void XineVideoWidget::setImage ( QImage* image )
+{
     delete m_image;
     m_image = image;
 }
+
 void XineVideoWidget::setImage( uchar* image, int yoffsetXLine,
                                 int xoffsetXBytes,  int width,
-                                int height, int linestep,  int bytes, int bpp ) {
+                                int height, int linestep, int bytes, int bpp )
+{
                                 
 	m_lastframe = m_thisframe;
 	m_thisframe. setRect ( xoffsetXBytes, yoffsetXLine, width, height );
 
     m_buff = image;
-    this->linestep = linestep;
-    m_bytes = bytes;
+	m_bytes_per_line_fb    = linestep;
+	m_bytes_per_line_frame = bytes;
     m_bytes_per_pixel = bpp;
 
-    repaint ( false );
+	repaint ((( m_thisframe & m_lastframe ) != m_lastframe ) ? m_lastframe : m_thisframe, false );
 }
diff --git a/noncore/multimedia/opieplayer2/xinevideowidget.h b/noncore/multimedia/opieplayer2/xinevideowidget.h
index 5656194..7d9a6d2 100644
--- a/noncore/multimedia/opieplayer2/xinevideowidget.h
+++ b/noncore/multimedia/opieplayer2/xinevideowidget.h
@@ -25,43 +25,40 @@
  -.   .:....=;==+<;          You should have received a copy of the GNU
   -_. . .   )=.  =           Library General Public License along with
     --        :-=`           this library; see the file COPYING.LIB.
                              If not, write to the Free Software Foundation,
                              Inc., 59 Temple Place - Suite 330,
                              Boston, MA 02111-1307, USA.
 
 */
 
 
 
 #include <qwidget.h>
 
 class QImage;
 class XineVideoWidget : public QWidget {
     Q_OBJECT
 public:
     XineVideoWidget( int width,  int height, QWidget* parent,  const char* name );
     ~XineVideoWidget();
     QImage *image() { return m_image; };
     void setImage( QImage* image );
     void setImage( uchar* image, int yoffsetXLine, int xoffsetXBytes,
                    int width, int height,  int linestep,  int bytes,  int bpp);
     int width() const;
     int height() const;
     void clear() ;
 protected:
     void paintEvent( QPaintEvent* p );
 private:
 	QRect m_lastframe;
 	QRect m_thisframe;
 
-    int m_wid;
-    int m_height;
-    int m_yOff, m_xOff;
     uchar* m_buff;
-    int m_Width,  m_Height, linestep;
-    int m_bytes;
+    int m_bytes_per_line_fb;
+    int m_bytes_per_line_frame;
     int m_bytes_per_pixel;
     QImage* m_image;
 
 };