OSErr myUpdateGWorld(
GWorldPtr *gw,
short depth,
Rect *bounds,
CTabHandle clut,
GDHandle dev,
unsigned long flags)
{
return UpdateGWorld(gw,depth,bounds,clut,dev,flags);
}
////////////////////////////////////////////////////////////////////////////////
// virtual
bool LLMediaImplQuickTime::sizeChanged()
{
if ( ! mMovieHandle )
return false;
// sanitize size of movie
Rect movie_rect;
setMovieBoxEnhanced( &movie_rect );
// we need this later
int width = ( movie_rect.right - movie_rect.left );
int height = ( movie_rect.bottom - movie_rect.top );
std::cout << "LLMEDIA> size changed to " << width << " x " << height << std::endl;
setMediaSize( width, height );
// media depth won't change
int depth_bits = getMediaDepth() * 8;
GWorldPtr old_gworld_handle = mGWorldHandle;
if (old_gworld_handle)
{
GWorldFlags result = UpdateGWorld( &mGWorldHandle, depth_bits, &movie_rect, NULL, NULL, 0 );
if ( gwFlagErr == result )
{
// TODO: unrecoverable?? throw exception? return something?
return false;
}
}
else
{
OSErr result = NewGWorld( &mGWorldHandle, depth_bits, &movie_rect, NULL, NULL, keepLocal | pixelsLocked );
if ( noErr != result )
{
// ATODO: unrecoverable?? throw exception? return something?
return false;
}
// clear memory in GWorld to avoid random screen visual fuzz from uninitialized texture data
if ( mGWorldHandle )
{
PixMapHandle pix_map_handle = GetGWorldPixMap( mGWorldHandle );
unsigned char* ptr = ( unsigned char* )GetPixBaseAddr( pix_map_handle );
memset( ptr, 0x00, height * QTGetPixMapHandleRowBytes( pix_map_handle ) );
}
}
// point movie at GWorld if it's new
if ( mMovieHandle && ! old_gworld_handle )
{
SetMovieGWorld( mMovieHandle, mGWorldHandle, GetGWorldDevice ( mGWorldHandle ) );
}
// update movie controller
if ( mMovieController )
{
MCSetControllerPort( mMovieController, mGWorldHandle );
MCPositionController( mMovieController, &movie_rect, &movie_rect,
mcTopLeftMovie | mcPositionDontInvalidate );
MCMovieChanged( mMovieController, mMovieHandle );
}
// Emit event with size change so the calling app knows about it too
LLMediaEvent event( this );
mEventEmitter.update( &LLMediaObserver::onMediaSizeChange, event );
return true;
}