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;
}
}
/*********************************************************************
*
* _DrawBitLine1BPP
*/
static void _DrawBitLine1BPP(GUI_USAGE* pUsage, int x, int y, const U8 GUI_UNI_PTR * p, int Diff, unsigned int xsize,
const LCD_PIXELINDEX* pTrans, GUI_MEMDEV* pDev, PIXELINDEX* pDest)
{
PIXELINDEX Index1;
PIXELINDEX IndexMask;
unsigned pixels;
unsigned PixelCnt;
PixelCnt = 8 - Diff;
pixels = LCD_aMirror[*p] >> Diff;
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 */
do {
/* Prepare loop */
if (PixelCnt > xsize) {
PixelCnt = xsize;
}
xsize -= PixelCnt;
/* Write as many pixels as we are allowed to and have loaded in this inner loop */
do {
*pDest++ = *(pTrans + (pixels & 1));
pixels >>= 1;
} while (--PixelCnt);
/* Check if an other Source byte needs to be loaded */
if (xsize == 0) {
return;
}
PixelCnt = 8;
pixels = LCD_aMirror[*++p];
} while (1);
case LCD_DRAWMODE_TRANS:
Index1 = *(pTrans + 1);
do {
/* Prepare loop */
if (PixelCnt > xsize) {
PixelCnt = xsize;
}
xsize -= PixelCnt;
if (pUsage) {
do {
if (pixels == 0) { /* Early out optimization; not required */
pDest += PixelCnt;
x += PixelCnt;
break;
}
if ((pixels & 1)) {
GUI_USAGE_AddPixel(pUsage, x, y);
*pDest = Index1;
}
x++;
pDest++;
if (--PixelCnt == 0) {
break;
}
pixels >>= 1;
} while (1);
} else {
do {
if (pixels == 0) { /* Early out optimization; not required */
pDest += PixelCnt;
break;
}
if ((pixels & 1)) {
*pDest = Index1;
}
pDest++;
if (--PixelCnt == 0) {
break;
}
pixels >>= 1;
} while (1);
}
/* Check if an other Source byte needs to be loaded */
if (xsize == 0) {
return;
}
PixelCnt = 8;
pixels = LCD_aMirror[*(++p)];
} while (1);
case LCD_DRAWMODE_XOR:
IndexMask = pDev->pfGetIndexMask();
do {
/* Prepare loop */
if (PixelCnt > xsize) {
PixelCnt = xsize;
}
xsize -= PixelCnt;
/* Write as many pixels as we are allowed to and have loaded in this inner loop */
do {
if ((pixels & 1)) {
*pDest ^= IndexMask;
}
*pDest++;
pixels >>= 1;
} while (--PixelCnt);
/* Check if an other Source byte needs to be loaded */
if (xsize == 0) {
return;
}
PixelCnt = 8;
pixels = LCD_aMirror[*(++p)];
} while (1);
}
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;
}
