| -rw-r--r-- | noncore/multimedia/opieplayer2/xinevideowidget.cpp | 66 |
1 files changed, 47 insertions, 19 deletions
diff --git a/noncore/multimedia/opieplayer2/xinevideowidget.cpp b/noncore/multimedia/opieplayer2/xinevideowidget.cpp index b55750a..15c611f 100644 --- a/noncore/multimedia/opieplayer2/xinevideowidget.cpp +++ b/noncore/multimedia/opieplayer2/xinevideowidget.cpp @@ -1,273 +1,301 @@ /* This file is part of the Opie Project Copyright (c) 2002 Robert Griebl <sandman@handhelds.org> Copyright (c) 2002 Holger Freyther <zecke@handhelds.org> =. .=l. .>+-= _;:, .> :=|. This program is free software; you can .> <`_, > . <= redistribute it and/or modify it under :`=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 <qdirectpainter_qws.h> #include <qgfx_qws.h> #include <qsize.h> #include <qapplication.h> #include <qpe/resource.h> #include "xinevideowidget.h" // 0 deg rot: copy a line from src to dst (use libc memcpy) // 180 deg rot: copy a line from src to dst reversed -static inline void memcpy_rev ( void *dst, void *src, size_t len ) +/* + * This code relies the len be a multiply of 16bit + */ +static inline void memcpy_rev ( void *_dst, void *_src, size_t len ) { - len >>= 1; - - ((char *) src ) += ( len << 1 ); + /* + * move the source to the end + */ + char *src_c = static_cast<char*>(_src) + len; + + /* + * as we copy by 16bit and not 8bit + * devide the length by two + */ + len >>= 1; + + short int* dst = static_cast<short int*>( _dst ); + short int* src = reinterpret_cast<short int*>( src_c ); + + /* + * Increment dst after assigning + * Decrement src before assigning becase we move backwards + */ + while ( len-- ) + *dst++ = *--src; - while ( len-- ) - *((short int *) dst )++ = *--((short int *) src ); } // 90 deg rot: copy a column from src to dst -static inline void memcpy_step ( void *dst, void *src, size_t len, size_t step ) +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; - } + short int *dst = static_cast<short int*>( _dst ); + short int *src = static_cast<short int*>( _src ); + + len >>= 1; + + /* + * Copy 16bit from src to dst and move to the next address + */ + while ( len-- ) { + *dst++ = *src; + src = reinterpret_cast<short int*>(reinterpret_cast<char*>(src)+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 step ) +static inline void memcpy_step_rev ( void *_dst, void *_src, size_t len, size_t step ) { - len >>= 1; + len >>= 1; - ((char *) src ) += ( len * step ); + char *src_c = static_cast<char*>( _src ) + (len*step); + short int* dst = static_cast<short int*>( _dst ); + short int* src = reinterpret_cast<short int*>( src_c ); - while ( len-- ) { - ((char *) src ) -= step; - *((short int *) dst )++ = *((short int *) src ); - } + while ( len-- ) { + src_c -= step; + src = reinterpret_cast<short int*>( src_c ); + *dst++ = *src; + } } XineVideoWidget::XineVideoWidget ( QWidget* parent, const char* name ) : QWidget ( parent, name, WRepaintNoErase | WResizeNoErase ) { setBackgroundMode ( NoBackground ); 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; } XineVideoWidget::~XineVideoWidget ( ) { delete m_logo; } void XineVideoWidget::clear ( ) { m_buff = 0; repaint ( false ); } QSize XineVideoWidget::videoSize() const { 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 ); return s; } void XineVideoWidget::paintEvent ( QPaintEvent * ) { 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 & ~1 ); 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; } void XineVideoWidget::setLogo ( QImage* logo ) { delete m_logo; m_logo = logo; } void XineVideoWidget::setVideoFrame ( uchar* img, int w, int h, int bpl ) { bool rot90 = (( -m_rotation ) & 1 ); if ( rot90 ) { // if the rotation is 90 or 270 we have to swap width / height int d = w; w = h; h = d; } 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 ((( m_thisframe & m_lastframe ) != m_lastframe ) ? m_lastframe : m_thisframe, false ); } void XineVideoWidget::resizeEvent ( QResizeEvent * ) { emit videoResized( videoSize() ); } void XineVideoWidget::mouseReleaseEvent ( QMouseEvent * /*me*/ ) { emit clicked(); |