GUIAAChar4.c
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上传日期:2017-08-10
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- /*
- *********************************************************************************************************
- * 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 : GUICharAA.C
- Purpose : Display antialiased
- ----------------------------------------------------------------------
- Version-Date---Author-Explanation
- ----------------------------------------------------------------------
- 1.00.00 990922 RS First release
- ----------------------------------------------------------------------
- Known problems or limitations with current version
- ----------------------------------------------------------------------
- Module needs cleanup and review, but is fully functional.
- ---------------------------END-OF-HEADER------------------------------
- */
- #include "GUI_Private.H"
- #include <stdio.h>
- #include <string.h>
- /*
- ***********************************************************
- * *
- * Anti-aliased drawing *
- * *
- ***********************************************************
- */
- static void Draw(int x0, int y0, int XSize, int YSize, int BytesPerLine, const U8*pData) {
- int x, y;
- tLCD_SetPixelAA* pfSetPixelAA;
- pfSetPixelAA = (GUI_Context.TextMode && GUI_TM_TRANS) ?
- LCD_SetPixelAA : LCD_SetPixelAA_NoTrans;
- for (y=0; y<YSize; y++) {
- const U8*pData0 = pData;
- for (x=0; x<XSize-1; x+=2) {
- (*pfSetPixelAA)(x+x0,y0+y, (*pData0)>>4); /* x0+x changed -> x+x0 to avoid problems with IAR's ICCMC80 */
- (*pfSetPixelAA)(x0+x+1,y0+y, (*pData0++)&15);
- }
- if (XSize&1) {
- (*pfSetPixelAA)(x0+x,y0+y, (*pData0)&15);
- }
- pData+=BytesPerLine;
- }
- }
- /*
- ***********************************************************
- * *
- * Font handling *
- * *
- ***********************************************************
- */
- static const GUI_FONT_PROP* GUIPROP_FindChar(const GUI_FONT_PROP* pProp, U16P c) {
- for (pProp = GUI_Context.pAFont->p.pProp; pProp; pProp=(const GUI_FONT_PROP*) pProp->pNext) {
- if ((c>=pProp->First) && (c<=pProp->Last))
- break;
- }
- return pProp;
- }
- void GUIPROP_AA4_DispChar(U16P c) {
- int BytesPerLine;
- GUI_DRAWMODE DrawMode = GUI_Context.TextMode;
- const GUI_FONT_PROP* pProp = GUIPROP_FindChar(GUI_Context.pAFont->p.pProp, c);
- if (pProp) {
- GUI_DRAWMODE OldDrawMode;
- const GUI_CHARINFO* pCharInfo = pProp->paCharInfo+(c-pProp->First);
- BytesPerLine = pCharInfo->BytesPerLine;
- OldDrawMode = LCD_SetDrawMode(DrawMode);
- Draw ( GUI_Context.DispPosX, GUI_Context.DispPosY,
- pCharInfo->XSize,
- GUI_Context.pAFont->YSize,
- BytesPerLine,
- (U8 const*)pCharInfo->pData
- );
- LCD_SetDrawMode(OldDrawMode); /* Restore draw mode */
- GUI_Context.DispPosX += pCharInfo->XDist;
- }
- }
- int GUIPROP_AA4_GetCharDistX(U16P c) {
- const GUI_FONT_PROP* pProp = GUIPROP_FindChar(GUI_Context.pAFont->p.pProp, c);
- return (pProp) ? (pProp->paCharInfo+(c-pProp->First))->XSize : 0;
- }
- void GUIPROP_AA4_GetFontInfo(void*pFont, GUI_FONTINFO* pfi) {
- GUI_USE_PARA(pFont);
- pfi->Flags = GUI_FONTINFO_FLAG_PROP | GUI_FONTINFO_FLAG_AA4;
- }
- char GUIPROP_AA4_IsInFont(void*pFont, U16 c) {
- const GUI_FONT_PROP* pProp = GUIPROP_FindChar(((GUI_FONT*)pFont)->p.pProp, c);
- return (pProp==NULL) ? 0 : 1;
- }
- /* End of file */