88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
/*
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*********************************************************************************************************
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* uC/GUI
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* Universal graphic software for embedded applications
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*
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* (c) Copyright 2002, Micrium Inc., Weston, FL
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* (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
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*
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* µC/GUI is protected by international copyright laws. Knowledge of the
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* source code may not be used to write a similar product. This file may
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* only be used in accordance with a license and should not be redistributed
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* in any way. We appreciate your understanding and fairness.
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*
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----------------------------------------------------------------------
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File : GUIArcAA.C
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Purpose : Draw Arc routines with Antialiasing
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---------------------------END-OF-HEADER------------------------------
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include "GUI_Protected.h"
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#if GUI_SUPPORT_AA
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/*********************************************************************
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*
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* Static code
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*
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**********************************************************************
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*/
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/*********************************************************************
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*
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* _DrawArcAA
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*/
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static void _DrawArcAA(int x0, int y0, int rx, int ry, int a0, int a1) {
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int PenSizePrev = GUI_GetPenSize();
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int PenSize_AA;
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int Factor;
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Factor = GUI_Context.AA_HiResEnable ? 1 : GUI_Context.AA_Factor;
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/* Convert into Hires coordinates (if not already done) */
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x0 *= Factor;
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y0 *= Factor;
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rx *= Factor;
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ry *= Factor;
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PenSize_AA = PenSizePrev * GUI_Context.AA_Factor;
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GUI_AA_Init_HiRes(x0 - rx - PenSize_AA, x0 + rx + PenSize_AA);
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GUI_SetPenSize(PenSize_AA);
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GL_DrawArc(x0, y0, rx, ry,a0,a1);
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GUI_SetPenSize(PenSizePrev); /* restore former pen size */
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/* Cleanup */
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GUI_AA_Exit();
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}
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/*********************************************************************
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*
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* Public code
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*
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**********************************************************************
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*/
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/*********************************************************************
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*
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* GUI_AA_DrawArc
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*/
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void GUI_AA_DrawArc(int x0, int y0, int rx, int ry, int a0, int a1) {
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GUI_LOCK();
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#if (GUI_WINSUPPORT)
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WM_ADDORG_AA(x0,y0);
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WM_ITERATE_START(NULL) {
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#endif
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_DrawArcAA( x0, y0, rx, ry, a0, a1);
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#if (GUI_WINSUPPORT)
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} WM_ITERATE_END();
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#endif
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GUI_UNLOCK();
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}
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#else /* Avoid problems with empty object modules */
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void GUIAAArc_C(void);
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void GUIAAArc_C(void) {}
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#endif /* GUI_SUPPORT_AA */
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/*************************** End of file ****************************/
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