?? guidev.c
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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 : GUIDev.CPurpose : Implementation of memory devices---------------------------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_MEMDEV/* ********************************************************* * * * Macros * * * **********************************************************/#define POS_AUTO -4095 /* Position value for auto-pos *//* ******************************************************************** * * ID translation table * ********************************************************************This table contains 0, 1, 2, ... and serves as translation table for DDBs*/#define INTS(Base) Base+0,Base+1,Base+2,Base+3,Base+4,Base+5, \ Base+6,Base+7,Base+8,Base+9,Base+10,Base+11, \ Base+12,Base+13,Base+14,Base+15static const LCD_PIXELINDEX aID[] = { INTS(0)};/* ********************************************************* * * * internal routines * * * * (not part of interface table) * * * **********************************************************/LCD_PIXELINDEX* GUI_MEMDEV_XY2PTR(int x,int y) { GUI_MEMDEV* pDev = GUI_MEMDEV_h2p(GUI_Context.hDevData); U8 *pData = (U8*)(pDev+1); #if GUI_DEBUG_LEVEL >= GUI_DEBUG_LEVEL_CHECK_ALL if ((x >= pDev->x0+pDev->XSize) | (x<pDev->x0) | (y >= pDev->y0+pDev->YSize) | (y<pDev->y0)) { GUI_DEBUG_ERROROUT2("GUI_MEMDEV_XY2PTR: parameters out of bounds",x,y); } #endif pData += (y- pDev->y0) * pDev->BytesPerLine; return ((LCD_PIXELINDEX*)pData) + x - pDev->x0;}/* ********************************************************* * * * Draw Bitmap 1 BPP * * * **********************************************************/static void DrawBitLine1BPP(GUI_USAGE* pUsage, int x, int y, U8 const*p, int Diff, int xsize, const LCD_PIXELINDEX*pTrans) { LCD_PIXELINDEX pixels; LCD_PIXELINDEX Index0 = *(pTrans+0); LCD_PIXELINDEX Index1 = *(pTrans+1); LCD_PIXELINDEX* pData; U8 PixelCnt; GUI_MEMDEV* pDev = GUI_MEMDEV_h2p(GUI_Context.hDevData); PixelCnt = 8- (Diff&7); pixels = (*p) << (Diff&7); pData = GUI_MEMDEV_XY2PTR(x,y); GUI_DEBUG_ERROROUT3_IF( x < pDev->x0, "GUIDEV.c: DrawBitLine1BPP, Act= %d, Border= %d, Clip= %d" ,x,pDev->x0, GUI_Context.ClipRect.x0); switch (GUI_Context.DrawMode & (LCD_DRAWMODE_TRANS|LCD_DRAWMODE_XOR)) { case 0: /* Write mode */ PixelLoopWrite: if (PixelCnt>xsize) PixelCnt =xsize; xsize -= PixelCnt; do { *pData++ = (pixels&0x80) ? Index1 : Index0; pixels<<=1; } while (--PixelCnt); if (xsize) { PixelCnt=8; pixels = *(++p); goto PixelLoopWrite; } break; case LCD_DRAWMODE_TRANS: PixelLoopTrans: if (PixelCnt>xsize) PixelCnt =xsize; xsize -= PixelCnt; do { if ((pixels&0x80)) { if (pUsage) GUI_USAGE_AddPixel(pUsage, x,y); *pData = Index1; } x++; pData++; pixels<<=1; } while (--PixelCnt); if (xsize) { PixelCnt=8; pixels = *(++p); goto PixelLoopTrans; } break; case LCD_DRAWMODE_XOR:; PixelLoopXor: if (PixelCnt>xsize) PixelCnt =xsize; xsize -= PixelCnt; do { if ((pixels&0x80)) *pData = pDev->NumColors - 1 - *pData; pData++; pixels<<=1; } while (--PixelCnt); if (xsize) { PixelCnt=8; pixels = *(++p); goto PixelLoopXor; } break; }}/* ********************************************************* * * * Draw Bitmap 2 BPP * * * **********************************************************/static void DrawBitLine2BPP(GUI_USAGE* pUsage, int x, int y, U8 const*p, int Diff, int xsize, const LCD_PIXELINDEX*pTrans) { U8 pixels; U8 PixelCnt; LCD_PIXELINDEX* pData; PixelCnt = 4- (Diff&3); pixels = (*p) << ((Diff&3)<<1); pData = GUI_MEMDEV_XY2PTR(x,y); switch (GUI_Context.DrawMode & (LCD_DRAWMODE_TRANS|LCD_DRAWMODE_XOR)) { case 0: /* Write mode */ PixelLoopWrite: if (PixelCnt>xsize) { PixelCnt =xsize; } xsize -= PixelCnt; do { *pData++ = *(pTrans + (pixels>>6)); pixels<<=2; } while (--PixelCnt); if (xsize) { PixelCnt=4; pixels = *(++p); goto PixelLoopWrite; } break; case LCD_DRAWMODE_TRANS: PixelLoopTrans: if (PixelCnt>xsize) PixelCnt =xsize; xsize -= PixelCnt; do { if (pixels&0xc0) { *pData = *(pTrans + (pixels>>6)); GUI_USAGE_AddPixel(pUsage, x,y); } pData++; pixels<<=2; } while (--PixelCnt); if (xsize) { PixelCnt=4; pixels = *(++p); goto PixelLoopTrans; } break; case LCD_DRAWMODE_XOR:; PixelLoopXor: if (PixelCnt>xsize) PixelCnt =xsize; xsize -= PixelCnt; do { if ((pixels&0xc0)) *pData ^= 255; pData++; pixels<<=2; } while (--PixelCnt); if (xsize) { PixelCnt=4; pixels = *(++p); goto PixelLoopXor; } break; }}/* ********************************************************* * * * Draw Bitmap 4 BPP * * * **********************************************************/static void DrawBitLine4BPP(GUI_USAGE* pUsage, int x, int y, U8 const*p, int Diff, int xsize, const LCD_PIXELINDEX*pTrans) { U8 pixels; LCD_PIXELINDEX* pData; U8 PixelCnt; PixelCnt = 2- (Diff&1); pixels = (*p) << ((Diff&1)<<2); pData = GUI_MEMDEV_XY2PTR(x,y); switch (GUI_Context.DrawMode & (LCD_DRAWMODE_TRANS|LCD_DRAWMODE_XOR)) {/* * Write mode **/ case 0: /* Draw incomplete bytes to the left of center area */ if (Diff) { *pData = *(pTrans + (pixels >>4)); pData++; xsize--; pixels = *++p; } /* Draw center area (2 pixels in one byte) */ if (xsize >= 2) { int i = xsize>>1; xsize &= 1; do { *pData = *(pTrans + (pixels>>4)); /* Draw 1. (left) pixel */ *(pData+1) = *(pTrans + (pixels&15)); /* Draw 2. (right) pixel */ pData +=2; pixels = *++p; } while (--i); } /* Draw incomplete bytes to the right of center area */ if (xsize) { *pData = * (pTrans + (pixels >> 4)); } break;/* * Transparent draw mode **/ case LCD_DRAWMODE_TRANS: /* Draw incomplete bytes to the left of center area */ if (Diff) { if (pixels&0xF0) { *pData = *(pTrans + (pixels>>4)); if (pUsage) GUI_USAGE_AddPixel(pUsage, x,y); } pData++; x++; xsize--; pixels = *++p; } /* Draw center area (2 pixels in one byte) */ while (xsize >= 2) { /* Draw 1. (left) pixel */ if (pixels&0xF0) { *pData = *(pTrans + (pixels>>4)); if (pUsage) GUI_USAGE_AddPixel(pUsage, x,y); } /* Draw 2. (right) pixel */ if (pixels &= 15) { *(pData+1) = *(pTrans + pixels); if (pUsage) GUI_USAGE_AddPixel(pUsage, x+1,y); } pData +=2; x+=2; xsize-=2; pixels = *++p; } /* Draw incomplete bytes to the right of center area */ if (xsize) { if (pixels >>= 4) { *pData = *(pTrans + pixels); if (pUsage) GUI_USAGE_AddPixel(pUsage, x,y); } } break; case LCD_DRAWMODE_XOR:; PixelLoopXor: if (PixelCnt>xsize) PixelCnt =xsize; xsize -= PixelCnt; do { if ((pixels&0xc0)) *pData ^= 255; pData++; pixels<<=4; } while (--PixelCnt); if (xsize) { PixelCnt=2; pixels = *(++p); goto PixelLoopXor; } break; }}/* ********************************************************* * * * Draw Bitmap 8 BPP Trans * * * **********************************************************/static void DrawBitLine8BPP(GUI_USAGE* pUsage, int x, int y, U8 const*pSrc, int xsize, const LCD_PIXELINDEX*pTrans) { LCD_PIXELINDEX* pDest; pDest = GUI_MEMDEV_XY2PTR(x,y); switch (GUI_Context.DrawMode & (LCD_DRAWMODE_TRANS|LCD_DRAWMODE_XOR)) { case 0: /* Write mode */ do { *pDest = *(pTrans + *pSrc); pDest++; pSrc++; } while (--xsize); break; case LCD_DRAWMODE_TRANS: do { if (*pSrc) { *pDest = *(pTrans + *pSrc); GUI_USAGE_AddPixel(pUsage, x,y); } x++; pDest++; pSrc++; } while (--xsize); break; }}/* ********************************************************* * * * Draw Bitmap 8 BPP No Trans * * * **********************************************************/static void DrawBitLine8BPP_DDB(GUI_USAGE* pUsage, int x, int y, U8 const*pSrc, int xsize) { LCD_PIXELINDEX* pDest; pDest = GUI_MEMDEV_XY2PTR(x,y); switch (GUI_Context.DrawMode & (LCD_DRAWMODE_TRANS|LCD_DRAWMODE_XOR)) { case 0: /* Write mode */ #if LCD_BITSPERPIXEL <=8 memcpy(pDest, pSrc, xsize); #else *pDest = *pSrc; while (--xsize) { *++pDest = *++pSrc; } #endif break; case LCD_DRAWMODE_TRANS: do { if (*pSrc) { *pDest = *pSrc; GUI_USAGE_AddPixel(pUsage, x,y); } x++; pDest++; pSrc++; } while (--xsize); break; }}/********************************************************** Draw Bitmap 16 BPP DDB***********************************************************/#if LCD_BITSPERPIXEL >8static void DrawBitLine16BPP_DDB(GUI_USAGE* pUsage, int x, int y, const U16 *pSrc, int xsize) { LCD_PIXELINDEX* pDest; pDest = GUI_MEMDEV_XY2PTR(x,y); switch (GUI_Context.DrawMode & (LCD_DRAWMODE_TRANS|LCD_DRAWMODE_XOR)) { case 0: /* Write mode */ memcpy(pDest, pSrc, xsize*2); break; case LCD_DRAWMODE_TRANS: do { if (*pSrc) { *pDest = *pSrc; GUI_USAGE_AddPixel(pUsage, x,y); } x++; pDest++; pSrc++; } while (--xsize); break; }}#endif/* ********************************************************* * * * Universal draw Bitmap routine * * * **********************************************************/?? 快捷鍵說明
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