haljpeg.~c

ct952 source code use for Digital Frame Photo

    switch (__HALJPEGSetting.bOperation)
    {
    case HALJPEG_OPERATION_RC:
        {
            switch (bAction)
            {
            case VIEW_ZOOM_LEFT:
                return VIEW_ZOOM_DOWN;
            case VIEW_ZOOM_RIGHT:
                return VIEW_ZOOM_UP;
            case VIEW_ZOOM_UP:
                return VIEW_ZOOM_LEFT;
            case VIEW_ZOOM_DOWN:
                return VIEW_ZOOM_RIGHT;
            default:
                break;
            }
        }
        break;
    case HALJPEG_OPERATION_FHFV:
        {
            switch (bAction)
            {
            case VIEW_ZOOM_LEFT:
                return VIEW_ZOOM_RIGHT;
            case VIEW_ZOOM_RIGHT:
                return VIEW_ZOOM_LEFT;
            case VIEW_ZOOM_UP:
                return VIEW_ZOOM_DOWN;
            case VIEW_ZOOM_DOWN:
                return VIEW_ZOOM_UP;
            default:
                break;
            }
        }
        break;
    case HALJPEG_OPERATION_RCC:
        {
            switch (bAction)
            {
            case VIEW_ZOOM_LEFT:
                return VIEW_ZOOM_UP;
            case VIEW_ZOOM_RIGHT:
                return VIEW_ZOOM_DOWN;
            case VIEW_ZOOM_UP:
                return VIEW_ZOOM_RIGHT;
            case VIEW_ZOOM_DOWN:
                return VIEW_ZOOM_LEFT;
            default:
                break;
            }
        }
        break;
    case HALJPEG_OPERATION_RCFH:
        {
            switch (bAction)
            {
            case VIEW_ZOOM_LEFT:
                return VIEW_ZOOM_UP;
            case VIEW_ZOOM_RIGHT:
                return VIEW_ZOOM_DOWN;
            case VIEW_ZOOM_UP:
                return VIEW_ZOOM_LEFT;
            case VIEW_ZOOM_DOWN:
                return VIEW_ZOOM_RIGHT;
            default:
                break;
            }
        }
        break;
    case HALJPEG_OPERATION_FH:
        {
            switch (bAction)
            {
            case VIEW_ZOOM_LEFT:
                return VIEW_ZOOM_RIGHT;
            case VIEW_ZOOM_RIGHT:
                return VIEW_ZOOM_LEFT;
            default:
                break;
            }
        }
        break;
    case HALJPEG_OPERATION_FV:
        {
            switch (bAction)
            {
            case VIEW_ZOOM_UP:
                return VIEW_ZOOM_DOWN;
            case VIEW_ZOOM_DOWN:
                return VIEW_ZOOM_UP;
            default:
                break;
            }
        }
        break;
    case HALJPEG_OPERATION_RCFV:
        {
            switch (bAction)
            {
            case VIEW_ZOOM_LEFT:
                return VIEW_ZOOM_DOWN;
            case VIEW_ZOOM_RIGHT:
                return VIEW_ZOOM_UP;
            case VIEW_ZOOM_UP:
                return VIEW_ZOOM_RIGHT;
            case VIEW_ZOOM_DOWN:
                return VIEW_ZOOM_LEFT;
            default:
                break;
            }
        }
        break;
    default:
        break;
    }

    return bAction;
}


//***************************************************************************
//  Function    :   _HALJPEG_DoZoomPanReScaling
//  Abstract    :   This function will do zoom/pan action by re-scaling.
//  Arguments   :   none.
//  Return      :   none.
//  Side Effect :   none.
//  Notes       :
//***************************************************************************
void _HALJPEG_DoZoomPanReScaling(void)
{
    _HALJPEG_ReScaling();

    _HALJPEG_Clip();

    DISP_Display(__HALJPEGSetting.bFrameBuffer, DISP_MAINVIDEO);

    //CoCo0.95, Fix the bug about JPEG PIP is wrong
    DISP_Display(__HALJPEGSetting.bFrameBuffer, DISP_PIP);
}

//***************************************************************************
//  Function    :   _HALJPEG_GetPanBoundary
//  Abstract    :   call this function to get left, right, up and down boundary.
//  Arguments   :   bAction,
//              :   VIEW_ZOOM_RIGHT ==> get right boundary
//              :   VIEW_ZOOM_LEFT ==> get left boundary
//              :   VIEW_ZOOM_UP ==> get up boundary
//              :   VIEW_ZOOM_DOWN ==> get down boundary
//  Return      :   Horizontal/Vertical position.
//  Side Effect :   none.
//  Notes       :
//***************************************************************************
WORD _HALJPEG_GetPanBoundary (BYTE bAction)
{
    //To get the rotating status. Rotating 90 degree==>TRUE. Else==>FALSE.
    _bHALJPEGTemp = _HALJPEG_GetRotateStatus();

    switch (bAction)
    {
    case VIEW_ZOOM_LEFT:
        if (!_bHALJPEGScalingAll || (_bHALJPEGScalingAll &&!_bHALJPEGTemp)) //Extract part of the image from the FOrg || not rotate
        {
            if (_bHALJPEGScalingAll && (_wHALJPEGClipWidth >= _wHALJPEGScalingWidth))
            {
                _wHALJPEGTemp = _wHALJPEGClipHStart;
            }
            else
            {
                _wHALJPEGTemp = HALJPEG_DISPLAY_BUF_WIDTH -_wHALJPEGScalingWidth;
                _wHALJPEGTemp >>= 1;
            }
        }
        else
		{
			if (_wHALJPEGClipWidth >= _wHALJPEGScalingHeight)
				_wHALJPEGTemp = _wHALJPEGClipHStart;
			else
			{
				_wHALJPEGTemp = HALJPEG_DISPLAY_BUF_WIDTH - _wHALJPEGScalingHeight;
				_wHALJPEGTemp >>= 1;
			}
		}
        break;
    case VIEW_ZOOM_RIGHT:
        if (!_bHALJPEGScalingAll || (_bHALJPEGScalingAll &&!_bHALJPEGTemp)) //Extract part of the image from the FOrg.
        {
            if (_bHALJPEGScalingAll && (_wHALJPEGClipWidth >= _wHALJPEGScalingWidth))
            {
                _wHALJPEGTemp = _wHALJPEGClipHStart;
            }
            else
            {
                _wHALJPEGTemp = HALJPEG_DISPLAY_BUF_WIDTH - _wHALJPEGScalingWidth;
                _wHALJPEGTemp >>= 1;
                _wHALJPEGTemp = _wHALJPEGTemp + _wHALJPEGScalingWidth - _wHALJPEGClipWidth;
            }
        }
        else
        {
            if (_wHALJPEGClipWidth >= _wHALJPEGScalingHeight)
                _wHALJPEGTemp = _wHALJPEGClipHStart;
            else
            {
                _wHALJPEGTemp = HALJPEG_DISPLAY_BUF_WIDTH - _wHALJPEGScalingHeight;
                _wHALJPEGTemp >>= 1;
                _wHALJPEGTemp = _wHALJPEGTemp + _wHALJPEGScalingHeight - _wHALJPEGClipWidth;
            }
        }
        break;
    case VIEW_ZOOM_UP:
        if (!_bHALJPEGScalingAll || (_bHALJPEGScalingAll &&!_bHALJPEGTemp)) //Extract part of the image from the FOrg.
        {
            if (_bHALJPEGScalingAll && (_wHALJPEGClipHeight >= _wHALJPEGScalingHeight))
            {
                _wHALJPEGTemp = _wHALJPEGClipVStart;
            }
            else
            {
                _wHALJPEGTemp = HALJPEG_DISPLAY_BUF_HEIGHT - _wHALJPEGScalingHeight;
                _wHALJPEGTemp >>= 1;
            }
        }
        else
		{
			if (_wHALJPEGClipHeight >= _wHALJPEGScalingWidth)
				_wHALJPEGTemp = _wHALJPEGClipVStart;
			else
			{
				_wHALJPEGTemp = HALJPEG_DISPLAY_BUF_HEIGHT - _wHALJPEGScalingWidth;
				_wHALJPEGTemp >>= 1;
			}
		}
        break;
    case VIEW_ZOOM_DOWN:
        if (!_bHALJPEGScalingAll || (_bHALJPEGScalingAll &&!_bHALJPEGTemp)) //Extract part of the image from the FOrg.
        {
            if (_bHALJPEGScalingAll && (_wHALJPEGClipHeight >= _HALJPEGScaling.wScalingHeight))
            {
                _wHALJPEGTemp = _wHALJPEGClipVStart;
            }
            else
            {
                _wHALJPEGTemp = HALJPEG_DISPLAY_BUF_HEIGHT - _wHALJPEGScalingHeight;
                _wHALJPEGTemp >>= 1;
                _wHALJPEGTemp = _wHALJPEGTemp + _wHALJPEGScalingHeight - _wHALJPEGClipHeight;
            }
        }
        else
		{
			if (_wHALJPEGClipHeight >= _wHALJPEGScalingWidth)
				_wHALJPEGTemp = _wHALJPEGClipVStart;
			else
			{
				_wHALJPEGTemp = HALJPEG_DISPLAY_BUF_HEIGHT - _wHALJPEGScalingWidth;
				_wHALJPEGTemp >>= 1;
				_wHALJPEGTemp = _wHALJPEGTemp + _wHALJPEGScalingWidth - _wHALJPEGClipHeight;
			}
		}
        break;
    }

    return _wHALJPEGTemp;
}


//***************************************************************************
//  Function    :   _HALJPEG_ForceTo8Multiple
//  Abstract    :   Transfer the value to 8's multiple.
//  Arguments   :   wValue: The value you want to transfer to.
//  Return      :   none.
//  Side Effect :   none.
//  Notes       :   none.
//***************************************************************************
void _HALJPEG_ForceTo8Multiple(WORD *wValue)
{
    *wValue = (*wValue + 7) >> 3;
    *wValue <<= 3;
}

//***************************************************************************
//  Function    :   _HALJPEG_Clip
//  Abstract    :   Call DISP's clip function to do clip.
//  Arguments   :   none.
//  Return      :   none.
//  Side Effect :   none.
//  Notes       :   none.
//***************************************************************************
void _HALJPEG_Clip(void)
{
    _JPEGClipWinParameter.sHStart = _wHALJPEGClipHStart;
    _JPEGClipWinParameter.wHWidth = _wHALJPEGClipWidth;
    _JPEGClipWinParameter.sVStart = _wHALJPEGClipVStart;
    _JPEGClipWinParameter.wVWidth = _wHALJPEGClipHeight;
    _JPEGClipWinParameter.bEnable = TRUE;

    //Call "clip" function
    // Chuan0.66, remove two parameters.
    DISP_Clip(&_JPEGClipWinParameter, /*__HALJPEGSetting.bFrameBuffer*/DISP_NEXTVSYNC, DISP_MAINVIDEO);
}

//***************************************************************************
//  Function    :   HALJPEG_ChangeTVMode
//  Abstract    :   Call this function when TV mode is changed.
//  Arguments   :   none.
//  Return      :   none.
//  Side Effect :   none.
//  Notes       :   none.
//***************************************************************************
void HALJPEG_ChangeTVMode(void)
{
    /*
    __dwCoded_Picture_Width = HALJPEG_DISPLAY_BUF_WIDTH;
    __dwCoded_Picture_Height = HALJPEG_DISPLAY_BUF_HEIGHT;

    DISP_MainVideoSet(&MainVideoInfo, __dwCoded_Picture_Width, __dwCoded_Picture_Height, DISP_NEXTVSYNC);
    */

    HALJPEG_SetDisplay();

    _HALJPEG_Clip();
}

//***************************************************************************
//  Function    :   _HALJPEG_ReScaling
//  Abstract    :   This function will do zoom/pan action by re-scaling.
//  Arguments   :   none.
//  Return      :   none.
//  Side Effect :   none.
//  Notes       :
//***************************************************************************
void _HALJPEG_ReScaling(void)
{
#ifdef SUPPORT_JPEG_FULL_SCREEN
    WORD wSrcOffsetH = 0;
    WORD wSrcOffsetV = 0;
#endif //SUPPORT_JPEG_FULL_SCREEN

#ifndef JPG_SINGLE_FRAME_BUFFER	
    //__HALJPEGSetting.bFrameBuffer = !__HALJPEGSetting.bFrameBuffer;
	__wHALJPEGCurrentDisplayBuf = !__wHALJPEGCurrentDisplayBuf;
	__H