GUIAAChar2.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 : GUICharAA2.C
- Purpose : Display antialiased 2bpp
- ----------------------------------------------------------------------
- Version-Date---Author-Explanation
- ----------------------------------------------------------------------
- 1.00.01 011031 JE a) GL_DrawBitmap called instead of GUI_DrawBitmap
- 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>
- /*
- ***********************************************************
- * *
- * Static defines
- * *
- ***********************************************************
- */
- #define MAX_CHAR_SIZE 100
- /*
- ***********************************************************
- * *
- * Static variables
- * *
- ***********************************************************
- */
- /* used by transparent characters */
- static const int aConvTable[4] = {0, 5, 10, 15};
- /* used by non transparent characters */
- static LCD_COLOR aColor[4];
- static LCD_PIXELINDEX OldColorIndex, OldBkColorIndex;
- static GUI_LOGPALETTE Palette = {4, 0, &aColor[0]};
- static GUI_BITMAP Bitmap = {0, 0, 0, 2, 0, &Palette, 0};
- /*
- ***********************************************************
- * *
- * Anti-aliased drawing *
- * *
- ***********************************************************
- */
- static void DrawNoTrans(int x0, int y0, int XSize, int YSize, int BytesPerLine, const U8*pData) {
- if ((OldColorIndex != LCD_COLORINDEX) ||
- (OldBkColorIndex != LCD_BKCOLORINDEX)) {
- int i;
- LCD_PIXELINDEX BkColorIndex = LCD_BKCOLORINDEX;
- LCD_PIXELINDEX ColorIndex = LCD_COLORINDEX;
- LCD_COLOR BkColor = LCD_Index2Color(BkColorIndex);
- LCD_COLOR Color = LCD_Index2Color(ColorIndex);
- aColor[0] = BkColor;
- for (i = 1; i < 3; i++) {
- U8 Intens;
- Intens = 5 * i;
- aColor[i] = LCD_AA_MixColors(Color, BkColor, Intens);
- }
- aColor[3] = Color;
- LCD_GetpPalConvTableUncached(&Palette);
- OldColorIndex = ColorIndex;
- OldBkColorIndex = BkColorIndex;
- }
- Bitmap.XSize = XSize;
- Bitmap.YSize = YSize;
- Bitmap.BytesPerLine = BytesPerLine;
- Bitmap.pData = pData;
- GL_DrawBitmap(&Bitmap, x0, y0);
- }
- static void DrawTrans(int x0, int y0, int XSize, int YSize, int BytesPerLine, const U8*pData) {
- int x, y;
- for (y = 0; y < YSize; y++) {
- const U8 *pData0 = pData;
- U8 Rem = XSize & 3;
- for (x = 0; x < XSize - 1; x += 4) {
- LCD_SetPixelAA(x + x0 , y0 + y, aConvTable[((*pData0 ) >> 6) ]);
- LCD_SetPixelAA(x + x0 + 1, y0 + y, aConvTable[((*pData0 ) >> 4) & 0x03]);
- LCD_SetPixelAA(x + x0 + 2, y0 + y, aConvTable[((*pData0 ) >> 2) & 0x03]);
- LCD_SetPixelAA(x + x0 + 3, y0 + y, aConvTable[((*pData0++) ) & 0x03]);
- }
- if (Rem) {
- LCD_SetPixelAA(x + x0 , y0 + y, aConvTable[((*pData0 ) >> 6) ]);
- if (Rem > 1) {
- LCD_SetPixelAA(x + x0 + 1, y0 + y, aConvTable[((*pData0 ) >> 4) & 0x03]);
- if (Rem > 2) {
- LCD_SetPixelAA(x + x0 + 2, y0 + y, aConvTable[((*pData0 ) >> 2) & 0x03]);
- }
- }
- }
- 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_AA2_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);
- if (DrawMode && GUI_TM_TRANS) {
- DrawTrans(GUI_Context.DispPosX,
- GUI_Context.DispPosY,
- pCharInfo->XSize,
- GUI_Context.pAFont->YSize,
- BytesPerLine,
- (U8 const*)pCharInfo->pData
- );
- } else {
- DrawNoTrans(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_AA2_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_AA2_GetFontInfo(void*pFont, GUI_FONTINFO* pfi) {
- GUI_USE_PARA(pFont);
- pfi->Flags = GUI_FONTINFO_FLAG_PROP | GUI_FONTINFO_FLAG_AA2;
- }
- char GUIPROP_AA2_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 */