/***********************************************************************************************************                                                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        : GUIDevM.CPurpose     : Implementation of measurement devices              The purpose of a measurement device is to find out the              area (Rectangle) affected by a sequence of drawing              operations.---------------------------END-OF-HEADER------------------------------*/#include <string.h>#include "GUI_Private.h"#include "GUIDebug.h"/* Memory device capabilities are compiled only if support for them is enabled.*/ #if GUI_SUPPORT_MEMDEVtypedef struct {  GUI_RECT rUsed;  tLCDDEV_Color2Index*  pfColor2Index;  tLCDDEV_Index2Color*  pfIndex2Color;} GUI_MEASDEV;#define GUI_MEASDEV_h2p(h) ((GUI_MEASDEV*)GUI_ALLOC_h2p(h))/*        *********************************************************        *                                                       *        *           internal routines                           *        *                                                       *				*     (not part of interface table)                     *        *                                                       *        **********************************************************/void _MarkPixel(int x, int y) {  GUI_MEASDEV* pDev = (GUI_MEASDEV*)(GUI_MEMDEV_h2p(GUI_Context.hDevData));  if (x < pDev->rUsed.x0)    pDev->rUsed.x0 = x;  if (x > pDev->rUsed.x1)    pDev->rUsed.x1 = x;  if (y < pDev->rUsed.y0)    pDev->rUsed.y0 = y;  if (y > pDev->rUsed.y1)    pDev->rUsed.y1 = y;}void _MarkRect(int x0, int y0, int x1, int y1) {  GUI_MEASDEV* pDev = (GUI_MEASDEV*)(GUI_MEMDEV_h2p(GUI_Context.hDevData));  if (x0 < pDev->rUsed.x0)    pDev->rUsed.x0 = x0;  if (x1 > pDev->rUsed.x1)    pDev->rUsed.x1 = x1;  if (y1 < pDev->rUsed.y0)    pDev->rUsed.y0 = y0;  if (y1 > pDev->rUsed.y1)    pDev->rUsed.y1 = y1;}/*        *********************************************************        *                                                       *        *         Universal draw Bitmap routine                 *        *                                                       *        **********************************************************/static void _DrawBitmap   (int x0, int y0,                       int xsize, int ysize,                       int BitsPerPixel,                        int BytesPerLine,                       const U8* pData, int Diff,                       const LCD_PIXELINDEX* pTrans){  GUI_USE_PARA(BitsPerPixel);  GUI_USE_PARA(BytesPerLine);  GUI_USE_PARA(pData);  GUI_USE_PARA(Diff);  GUI_USE_PARA(pTrans);  _MarkRect(x0,y0,x0+xsize-1, y0+ysize-1);}static void _DrawHLine    (int x0, int y,  int x1) {  _MarkRect(x0, y, x1, y);}static void _DrawVLine    (int x , int y0,  int y1) {  _MarkRect(x, y0, x, y1);}static void _SetPixelIndex (int x, int y, int Index) {  GUI_USE_PARA(Index);  _MarkPixel(x,y);}static void _XorPixel (int x, int y){  _MarkPixel(x,y);}static unsigned int _GetPixelIndex (int x, int y) {   GUI_USE_PARA(x);  GUI_USE_PARA(y);  return 0;}static void _FillRect     (int x0, int y0, int x1, int y1){  _MarkRect(x0,y0,x1,y1);}static void _GetRect  (LCD_RECT* pRect) {  pRect->x0 = pRect->y0 = -4095;  pRect->x1 = pRect->y1 =  4095;}static  unsigned int _Color2Index (LCD_COLOR Color) {  GUI_MEASDEV * pDev = GUI_MEASDEV_h2p(GUI_Context.hDevData);  return pDev->pfColor2Index(Color);}static  LCD_COLOR _Index2Color (int Index) {  GUI_MEASDEV * pDev = GUI_MEASDEV_h2p(GUI_Context.hDevData);  return pDev->pfIndex2Color(Index);}static void CalcPolyRect(GUI_RECT *pr, const GUI_POINT* paPoint, int NumPoints) {  int i;  int xMin, xMax, yMin, yMax;  xMin = GUI_XMAX;  yMin = GUI_YMAX;  xMax = GUI_XMIN;  yMax = GUI_YMIN;  for (i=0; i<NumPoints; i++) {    int x = paPoint->x;    int y = paPoint->y;    if (xMin > x)      xMin = x;    if (xMax < x)      xMax = x;    if (yMin > y)      yMin = y;    if (yMax < y)      yMax = y;    paPoint++;  }  pr->x0 = xMin;  pr->x1 = xMax;  pr->y0 = yMin;  pr->y1 = yMax;}static void _FillPolygon(const GUI_POINT* paPoint, int NumPoints, int x0, int y0) {  GUI_RECT r;  CalcPolyRect(&r, paPoint, NumPoints);  GUI_MoveRect(&r, x0, y0);  _MarkRect(r.x0, r.y0, r.x1, r.y1);}static void _FillPolygonAA(const GUI_POINT* paPoint, int NumPoints, int x0, int y0) {  GUI_RECT r;  CalcPolyRect(&r, paPoint, NumPoints);  GUI_MoveRect(&r, x0, y0);  if (GUI_Context.AA_HiResEnable) {    r.x0 /= GUI_Context.AA_Factor;    r.y0 /= GUI_Context.AA_Factor;    r.x1 = (r.x1 + GUI_Context.AA_Factor -1) / GUI_Context.AA_Factor;    r.y1 = (r.y1 + GUI_Context.AA_Factor -1) / GUI_Context.AA_Factor;  }  _MarkRect(r.x0, r.y0, r.x1, r.y1);}/***********************************************************************             Device structure************************************************************************/static const tLCDDEV_APIList _APIList = {  _Color2Index,  _DrawBitmap,  _DrawHLine,  _DrawVLine,  _FillRect,  _GetPixelIndex,  _GetRect,  _Index2Color,  _SetPixelIndex,  _XorPixel,  _FillPolygon,  _FillPolygonAA};/*  *********************************************************  *  *            Exported routines  *  **********************************************************//*      *************************************************      *                                               *      *             Delete                            *      *                                               *      **************************************************/void GUI_MEASDEV_Delete (GUI_MEASDEV_Handle hMemDev) {/* Make sure memory device is not used */  if ((GUI_Context.hDevData = hMemDev) != 0)	  GUI_SelectLCD();  GUI_ALLOC_FREE(hMemDev);}/*      *************************************************      *                                               *      *             Clear Rectangle                   *      *                                               *      **************************************************/void GUI_MEASDEV_ClearRect (GUI_MEASDEV_Handle hMemDev) {  if (hMemDev) {    GUI_MEASDEV* pDevData = (GUI_MEASDEV*)GUI_ALLOC_H2P(hMemDev);    pDevData->rUsed.x0 = GUI_XMAX;    pDevData->rUsed.y0 = GUI_YMAX;    pDevData->rUsed.x1 = GUI_XMIN;    pDevData->rUsed.y1 = GUI_YMIN;  } }/*      *************************************************      *                                               *      *             Create                            *      *                                               *      **************************************************/GUI_MEASDEV_Handle GUI_MEASDEV_Create (void) {  int MemSize;  GUI_MEASDEV_Handle hMemDev;  MemSize = sizeof(GUI_MEASDEV);  hMemDev = GUI_ALLOC_ALLOC(MemSize);  if (hMemDev) {    GUI_MEASDEV* pDevData = (GUI_MEASDEV*)GUI_ALLOC_H2P(hMemDev);    pDevData->pfColor2Index = GUI_Context.pDeviceAPI->pfColor2Index;        pDevData->pfIndex2Color = GUI_Context.pDeviceAPI->pfIndex2Color;    GUI_MEASDEV_ClearRect(hMemDev);  } else {    GUI_DEBUG_WARN("GUI_MEASDEV_Create: Alloc failed");  }  return hMemDev;}/*      *************************************************      *                                               *      *             Select                            *      *                                               *      **************************************************/void GUI_MEASDEV_Select(GUI_MEASDEV_Handle hMem) {  if (hMem==0) {    GUI_SelectLCD();  } else {    #if GUI_WINSUPPORT      WM_Deactivate();    #endif    GUI_Context.hDevData = hMem;    GUI_Context.pDeviceAPI  = &_APIList;    GUI_Context.pClipRect_HL = NULL;    LCD_SetClipRectMax();  }}/*      *************************************************      *                                               *      *             GetRect      *                                               *      **************************************************/void GUI_MEASDEV_GetRect(GUI_MEASDEV_Handle hMem, GUI_RECT *pRect) {  if (hMem) {    GUI_MEASDEV* pDev = (GUI_MEASDEV*)GUI_ALLOC_H2P(hMem);    if (pRect) {      pRect->x0 = pDev->rUsed.x0;      pRect->y0 = pDev->rUsed.y0;      pRect->x1 = pDev->rUsed.x1;      pRect->y1 = pDev->rUsed.y1;    }  }}#elsevoid GUIDEV_Measure(void) {} /* avoid empty object files */#endif /* GUI_MEMDEV_SUPPORT */