/***********************************************************************************************************                                                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        : AA_HiResAntialiasing.cPurpose     : Demonstrates high resolution antialiasing----------------------------------------------------------------------*/#include "GUI.H"#include "44blib.h"/*********************************************************************            Data**********************************************************************/#define countof(Obj) (sizeof(Obj)/sizeof(Obj[0]))static const GUI_POINT aPointer[] = {  {  0,  3},  { 85,  1},  { 60,  0},  { 85, -1},  {  0, -3}};static GUI_POINT aPointerHiRes[countof(aPointer)];typedef struct {  GUI_AUTODEV_INFO AutoInfo;  GUI_POINT aPoints[countof(aPointer)];  int Factor;} PARAM;/*********************************************************************                 Drawing routines**********************************************************************/static void DrawHiRes(void * p) {  PARAM * pParam = (PARAM *)p;  if (pParam->AutoInfo.DrawFixed) {    GUI_ClearRect (0, 0, 110, 110);  }  GUI_AA_FillPolygon(pParam->aPoints,                      countof(aPointer),                      3 * pParam->Factor,                      95 * pParam->Factor);}static void Draw(void * p) {  PARAM * pParam = (PARAM *)p;  if (pParam->AutoInfo.DrawFixed) {    GUI_ClearRect(100, 0, 199, 99);  }  GUI_AA_FillPolygon(pParam->aPoints, countof(aPointer), 105, 95);}/*********************************************************************    Demonstrate high resolution by drawing rotating pointers**********************************************************************/void ShowHiresAntialiasing(void) {  int i;  GUI_AUTODEV aAuto[2];  PARAM Param;  Param.Factor = 2;  GUI_DispStringHCenterAt("Using high\nresolution mode", 70, 120);  GUI_DispStringHCenterAt("Not using high\nresolution mode", 70, 190);  /* Create GUI_AUTODEV objects */  for (i = 0; i < countof(aAuto); i++) {    GUI_MEMDEV_CreateAuto(&aAuto[i]);  }  /* Calculate pointer for high resolution */  for (i = 0; i < countof(aPointer); i++) {    aPointerHiRes[i].x = aPointer[i].x * Param.Factor;    aPointerHiRes[i].y = aPointer[i].y * Param.Factor;  }  GUI_AA_SetFactor(Param.Factor); /* Set antialiasing factor */  while(1) {    for (i = 0; i < 1800; i+=10) {      float Angle = (i >= 900) ? 1800 - i : i;      Angle *= 3.1415926f / 1800;      /* Draw pointer with high resolution */      GUI_AA_EnableHiRes();      GUI_RotatePolygon(Param.aPoints, aPointerHiRes, countof(aPointer), Angle);      GUI_MEMDEV_DrawAuto(&aAuto[0], &Param.AutoInfo, DrawHiRes, &Param);      /* Draw pointer without high resolution */      GUI_AA_DisableHiRes();      GUI_RotatePolygon(Param.aPoints, aPointer, countof(aPointer), Angle);      GUI_MEMDEV_DrawAuto(&aAuto[1], &Param.AutoInfo, Draw, &Param);      GUI_Delay(2);      if (GetKey()!=0xff)    	return;    }  }}