/***********************************************************************************************************                                                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        : MEMDEV_Banding.cPurpose     : Example demonstrating the use of banding memory devices----------------------------------------------------------------------*/#include "LCD_ConfDefaults.h"  /* valid LCD configuration */#include "WM.H"#include "GUIDEMO.H"static const GUI_POINT aPoints[] = {  {-50,  0},  {-10, 10},  {  0, 50},  { 10, 10},  { 50,  0},  { 10,-10},  {  0,-50},  {-10,-10}};#define SIZE_OF_ARRAY(Array) (sizeof(Array) / sizeof(Array[0]))typedef struct {  int XPos_Poly, YPos_Poly;  int XPos_Text, YPos_Text;  GUI_POINT aPointsDest[8];} tDrawItContext;/*********************************************************************                 Drawing routine**********************************************************************/static void DrawIt(void * pData) {  tDrawItContext * pDrawItContext = (tDrawItContext *)pData;  GUI_Clear();  GUI_SetFont(&GUI_Font8x8);  GUI_SetTextMode(GUI_TM_TRANS);  /* draw background */  GUI_SetColor(GUI_GREEN);  GUI_FillRect(pDrawItContext->XPos_Text,                pDrawItContext->YPos_Text - 25,               pDrawItContext->XPos_Text + 100,               pDrawItContext->YPos_Text - 5);  /* draw polygon */  GUI_SetColor(GUI_BLUE);  GUI_FillPolygon(pDrawItContext->aPointsDest, SIZE_OF_ARRAY(aPoints), 160, 120);  /* draw foreground */  GUI_SetColor(GUI_RED);  GUI_FillRect(220 - pDrawItContext->XPos_Text,                pDrawItContext->YPos_Text + 5,               220 - pDrawItContext->XPos_Text + 100,               pDrawItContext->YPos_Text + 25);}/*********************************************************************           Demonstrates the banding memory device**********************************************************************/#define USE_BANDING_MEMDEV (1) /* Set to 0 for drawing without banding memory device */void GUIDEMO_BandingMemdev(void) {  int i;  int XSize = LCD_GetXSize();  int YSize = LCD_GetYSize();  tDrawItContext DrawItContext;  GUI_SetColor(GUI_WHITE);  GUI_SetBkColor(GUI_BLACK);   GUI_Clear();  GUI_DispStringHCenterAt("Banding memory device\nwithout flickering",                           XSize / 2, 40);  DrawItContext.XPos_Poly = XSize / 2;  DrawItContext.YPos_Poly = YSize / 2;  DrawItContext.YPos_Text = YSize / 2 - 4;  for (i = 0; i < (XSize - 100); i++) {    float angle = i * 3.1415926 / 60;    DrawItContext.XPos_Text = i;    /* Rotate the polygon */    GUI_RotatePolygon(DrawItContext.aPointsDest,                       aPoints,                       SIZE_OF_ARRAY(aPoints), angle);    #if USE_BANDING_MEMDEV    {      GUI_RECT Rect = {0, 70, 320,170};      /* Use banding memory device for drawing */      GUI_MEMDEV_Draw(&Rect, &DrawIt, &DrawItContext, 0, 0);    }    #else      /* Simple drawing without using memory devices */      DrawIt((void *)&DrawItContext);    #endif//    #ifdef WIN32     GUIDEMO_Delay(10); /* Use a short delay only in the simulation *///    #endif  }}/*********************************************************************                 main**********************************************************************/