/***********************************************************************************************************                                                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        : GUIArcAA.CPurpose     : Draw Arc routines with Antialiasing----------------------------------------------------------------------Version-Date---Author-Explanation----------------------------------------------------------------------1.00.00 000728 RS     First release of the new algorithm----------------------------------------------------------------------Known problems or limitations with current version----------------------------------------------------------------------None.----------------------------------------------------------------------Open issues----------------------------------------------------------------------None---------------------------END-OF-HEADER------------------------------*/#include "GUI_Protected.h"#include <stdio.h>#include <stdlib.h>#include <string.h>#include <math.h>static void _DrawArcAA (int x0, int y0, int rx, int ry, int a0, int a1) {  int PenSizePrev = GUI_GetPenSize();  GUI_AA_Init(x0-rx-PenSizePrev, x0+rx+PenSizePrev);  GUI_SetPenSize(PenSizePrev * GUI_Context.AA_Factor);  GL_DrawArc(GUI_Context.AA_Factor*x0, GUI_Context.AA_Factor*y0, GUI_Context.AA_Factor*rx, GUI_Context.AA_Factor*ry,a0,a1);  GUI_SetPenSize(PenSizePrev);  /*  // Cleanup  */  GUI_AA_Exit();}void GUI_AA_DrawArc(int x0, int y0, int rx, int ry, int a0, int a1) {  #if (GUI_WINSUPPORT)    WM_LOCK();    WM_ADDORG(x0,y0);    WM_ITERATE_START(NULL) {  #endif  _DrawArcAA( x0, y0, rx, ry, a0, a1);  #if (GUI_WINSUPPORT)    } WM_ITERATE_END();    WM_UNLOCK();  #endif}