/***********************************************************************************************************                                                uC/GUI*                        Universal graphic software for embedded applications**                       (c) Copyright 2002, Micrium Inc., Weston, FL*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH**              礐/GUI is protected by international copyright laws. Knowledge of the*              source code may not be used to write a similar product. This file may*              only be used in accordance with a license and should not be redistributed*              in any way. We appreciate your understanding and fairness.*----------------------------------------------------------------------File        : GUIDev_CopyFromLCD.CPurpose     : Implementation of memory devices----------------------------------------------------------------------*/#include "GUI_Private.h"#include "GUIDebug.h"/* Memory device capabilities are compiled only if support for them is enabled. */ #if GUI_SUPPORT_MEMDEV/*********************************************************************                   Function replacement macros**********************************************************************/#define LCD_LIMIT(Var, Op, Limit) if (Var Op Limit) Var = Limit/************************************************************************                        GUI_MEMDEV_CopyFromLCD*************************************************************************/void GUI_MEMDEV_CopyFromLCD(GUI_MEMDEV_Handle hMem) {  /* Make sure memory handle is valid */  if (!hMem) {    hMem = GUI_Context.hDevData;  }  if (!hMem) {    return;  }  {    GUI_MEMDEV* pDevData = (GUI_MEMDEV*) GUI_ALLOC_LOCK(hMem);  /* Convert to pointer */    LCD_RECT r;    int y;    int XMax;    GUI_USAGE* pUsage = 0;    GUI_MEMDEV_Handle hMemOld = GUI_Context.hDevData;    GUI_MEMDEV_Select(hMem);    if (pDevData->hUsage)       pUsage = GUI_USAGE_h2p(pDevData->hUsage);    /* Get bounding rectangle */    r.y0  = pDevData->y0;    r.x0  = pDevData->x0;    r.x1  = pDevData->x0 + pDevData->XSize-1;    r.y1  = pDevData->y0 + pDevData->YSize-1;    /* Make sure bounds are within LCD area so we can call driver directly */    LCD_LIMIT(r.x0, <, 0);    LCD_LIMIT(r.y0, <, 0);    LCD_LIMIT(r.x1, >, LCD_GET_XSIZE() -1);    LCD_LIMIT(r.y1, >, LCD_GET_YSIZE() -1);    XMax = r.x1;    for (y=r.y0; y<=r.y1; y++) {      int x=r.x0;      LCD_PIXELINDEX* pData = GUI_MEMDEV_XY2PTR(x,y);      if (pUsage)         GUI_USAGE_AddHLine(pUsage, x, y, r.x1 - r.x0 + 1);      for (; x<=XMax; x++) {        *pData++ = LCD_L0_GetPixelIndex(x,y);      }    }    GUI_MEMDEV_Select(hMemOld);  }  GUI_ALLOC_UNLOCK(hMem);}#endif /* GUI_MEMDEV_SUPPORT */