_XBool _XHIKCamera::upDateFrame()
{
if(!m_isInited) return XFalse;
if(isNewFrame() && m_isWork != 0)
{//更新贴图数据
memcpy(m_dataRGBOut,m_dataRGB,m_buffSize);
m_cameraTex.updateTexture(m_dataRGBOut);
return XTrue;
}
return XFalse;
}
// This code was in main...
// This isn't generalized enough to justify this function-name
// just not ready to delete it completely
// Returns TRUE if there's a change to the frameBuffer image
// (so a refresh can be scheduled, if so desired)
// a/o v71: This is called in the main loop
// w/ REFRESH_ON_CHANGE:
// * The fb_updater() function (e.g. tet_update) is only called
// after the frame-refresh is complete
// (if there are several refreshes, it waits until they're all
// done)
// It *also* waits for a delay *after the refreshes* before
// fb_updater() is called... (this may be a little redundant?)
// w/o:
// * The fb_updater() function is called at the beginning of a new
// frame (once) to attempt to only update the framebuffer at a
// time when it won't refresh the screen with only half of the
// framebuffer itself updated.
void frameBufferUpdate(void)
{
#if(defined(FB_REFRESH_ON_CHANGE) && FB_REFRESH_ON_CHANGE)
// static uint8_t lastUpdated = FALSE;
static fb_timer_t fbLastUpdateTime = 0;
//Because the dmsTimer is running somewhat arbitarily, this "200ms"
// isn't particularly accurate...
if(updateFrame)
{
fbLastUpdateTime = fb_getTime();
return;
}
// Since lastUpdateTime is updated each time this function is called
// with updateFrame != 0, this test will fail until 100ms after the
// last refresh.
// (a/o v71 this has changed, it was in an else, and this else-case
// handled multiple-refresh. That should now be handled in
// endOfFrameHandler())
if(fb_isItTime(&fbLastUpdateTime, FB_REFRESH_ON_CHANGE_DELAY))
{
int16_t fb_changedTillRow = fb_updater();
//call fb_updater()
// and ONLY REFRESH if there's been a change to the frameBuffer
if(fb_changedTillRow != -1)
{
#if(defined(PARTIAL_REFRESH) && PARTIAL_REFRESH)
extern uint16_t stopRefreshAtRow;
//This must be +1 to account for the length of the last pixel
// possibly 2 to help clear out ghosting
stopRefreshAtRow = (fb_changedTillRow+2) * V_COUNT / FB_HEIGHT;
#endif
restartFrameUpdate();
//updateFrame = FB_REFRESH_ON_CHANGE_COUNT;
}
}
#else
if(isNewFrame())
{
fb_updater();
}
#endif
}
bool SecondLevelBuffer::writeData(DataCell* datacell) {
if(datacell->m_sqNum<0) {
//printf("inserting data sqnum error\n");
return false;
}
EnterCriticalSection( &CS);
int size=m_Frames.size();
bool isnew=false;
FrameCell * cframe=isNewFrame(datacell,&isnew);
if(isnew) {
if(m_Frames.size()==0&&datacell->m_FrameType!=PPS) {
LeaveCriticalSection( &CS);
return false;
}
checkFrameComplete(datacell->m_topsqNum);
FrameCell fcell;
if(datacell->m_FrameType==::IFRAME)m_currentGOPPos=0;
fcell.init(datacell,m_currentGOPPos,datacell->m_FrameType);
fcell.m_base=datacell->m_sqNum;
m_currentGOPPos++;
m_Frames.push_back(fcell);
//printf("%d\n",m_Frames.size());
//printf("leave cs\n");
LeaveCriticalSection( &CS);
return true;
} else {
if(cframe!=NULL) {
cframe->addData(datacell,cframe->m_base);
LeaveCriticalSection( &CS);
return true;
}
else {
LeaveCriticalSection( &CS);
return false;
}
}
}
