📄 lcd13xx.lst
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BITBLT_SET_ACTIVE(); /* engage bitblt engine */
WaitForBltEnd(); /* wait for pending blit to end
-*/
}
}
} LCD_ENABLE_MEM_ACCESS();
}
C51 COMPILER V8.05a LCD13XX 04/11/2008 14:19:22 PAGE 16
static void LCD_DrawBitmap1BPPBB(int x, int y, U8 const*p, int Diff, int xsize, int ysize, int BytesPerLin
-e, const LCD_PIXELINDEX*pTrans) {
volatile U16 tmp;
x+= Diff;
LCD_ENABLE_REG_ACCESS(); {
U16 StartBit = 7 - (Diff & 7);
U16 Data = StartBit | ((GUI_Context.DrawMode & LCD_DRAWMODE_TRANS) ? 0x900 : 0x800);
int NumWords = ((Diff & 7) + xsize + 15) >> 4;
WRITE_REG(0x102 / 2, Data); /* set start bit and operation *
-/
WRITE_REG(0x104 / 2, 0); /* set source start address */
BITBLT_SET_DESTINATION(x, y); /* set destination start address
- */
WRITE_REG(0x110 / 2, (xsize - 1)); /* set width */
WRITE_REG(0x112 / 2, (ysize - 1)); /* set height */
WRITE_REG(0x114 / 2, (*(pTrans + 0))); /* set background color */
WRITE_REG(0x118 / 2, (*(pTrans + 1))); /* set foreground color */
BITBLT_SET_ACTIVE(); /* engage bitblt engine */
do {
READ_REG(0x100 / 2, tmp);
} while ((tmp & 0x80) == 0);
for (;ysize; ysize--, p += BytesPerLine) {
U8 const *pLine= p;
int i;
for (i = NumWords; i; i--, pLine += 2) {
do {
READ_REG(0x100 / 2, tmp);
} while ((tmp & 0x40) == 0x40);
WRITE_REG(0x100000 / 2, ((*pLine) | ((*(pLine + 1)) << 8))); /* write data into FIFO */
}
}
WaitForBltEnd(); /* wait for pending blit to end
-*/
} LCD_ENABLE_MEM_ACCESS();
}
#endif
/*
*********************************************************
* *
* Internal set pixel routines *
* *
*********************************************************
*/
static void _SetPixel(int x, int y, LCD_PIXELINDEX c) {
tOff Off = XY2OFF(x,y);
#if LCD_BUSWIDTH == 16
#if LCD_BITSPERPIXEL == 1
U8 BitNo = (~x)&15;
U16 Data;
READ_MEM(Off, Data);
if (c)
Data |= c<<BitNo;
else
Data &= ~(1<<BitNo);
WRITE_MEM(Off, Data);
#elif LCD_BITSPERPIXEL == 2
U16 Data;
U8 Shift = 14 - ((x & 7) << 1);
C51 COMPILER V8.05a LCD13XX 04/11/2008 14:19:22 PAGE 17
READ_MEM(Off, Data);
Data = (Data & ~(3 << Shift)) | (c << Shift);
WRITE_MEM(Off, Data);
#elif LCD_BITSPERPIXEL == 4
U8 Shift = ((~x)&3)<<2; /* 12,8,4 or 0 */
U16 Data;
READ_MEM(Off, Data);
Data &= ~(15<<Shift);
Data |= c<<Shift;
WRITE_MEM(Off, Data);
#elif LCD_BITSPERPIXEL == 8
U16 Data;
READ_MEM(Off, Data);
switch (x&1) {
case 1:
Data = (Data & ~(0xff )) | (c );
break;
case 0:
Data = (Data & ~(0xff<<8)) | (c<<8);
break;
}
WRITE_MEM(Off, Data);
#elif (LCD_BITSPERPIXEL == 15) | (LCD_BITSPERPIXEL == 16)
WRITE_MEM(Off, c);
#else
#error unsupported LCD_BITSPERPIXEL
#endif
#elif LCD_BUSWIDTH == 8
#if LCD_BITSPERPIXEL == 1
U8 Data;
U8 BitNo;
READ_MEM(Off, Data);
BitNo = 7-(x&7);
if (c)
Data |= c<<BitNo;
else
Data &= ~(1<<BitNo);
WRITE_MEM(Off, Data);
#elif LCD_BITSPERPIXEL == 2
U8 Data;
READ_MEM(Off, Data);
switch (x&3) {
case 3:
Data = (Data & ~(3<<0)) | (c<<0);
break;
case 2:
Data = (Data & ~(3<<2)) | (c<<2);
break;
case 1:
Data = (Data & ~(3<<4)) | (c<<4);
break;
case 0:
Data = (Data & ~(3<<6)) | (c<<6);
break;
}
WRITE_MEM(Off, Data);
#elif LCD_BITSPERPIXEL == 4
U8 Data;
READ_MEM(Off, Data);
switch (x&1) {
case 1:
Data = (Data & ~(15<<0)) | (c<<0);
C51 COMPILER V8.05a LCD13XX 04/11/2008 14:19:22 PAGE 18
break;
case 0:
Data = (Data & ~(15<<4)) | (c<<4);
break;
}
WRITE_MEM(Off, Data);
#elif LCD_BITSPERPIXEL == 8
WRITE_MEM(Off, c);
#else
#error TBD
#endif
#else
#error unsupported LCD_BUSWIDTH
#endif
}
unsigned int GetPixelIndex(int x, int y) {
LCD_PIXELINDEX col;
tOff Off = XY2OFF(x,y);
#if LCD_BUSWIDTH == 16
U16 Data;
READ_MEM(Off,Data);
#if LCD_BITSPERPIXEL == 1
col = (Data >> (15-(x&15))) &1;
#elif LCD_BITSPERPIXEL == 2
col = (Data >> (14-((x&7)<<1))) &3;
#elif LCD_BITSPERPIXEL == 4
col = (Data >> (12-((x&3)<<2))) &15;
#elif LCD_BITSPERPIXEL == 8
col = ((x&1) ==0) ? Data>>8 : Data;
#elif LCD_BITSPERPIXEL == 15
col = Data;
#elif LCD_BITSPERPIXEL == 16
col = Data;
#endif
#else
U8 Data;
READ_MEM(Off,Data);
#if LCD_BITSPERPIXEL == 1
col = (Data >> (7-(x&7))) &1;
#elif LCD_BITSPERPIXEL == 2
col = (Data >> (6-((x&3)<<1))) &3;
#elif LCD_BITSPERPIXEL == 4
col = (x&1) ? Data&15 : Data>>4;
#elif LCD_BITSPERPIXEL == 8
col = Data;
#endif
#endif
return col;
}
static void XorPixel (int x, int y) {
LCD_PIXELINDEX Index = GetPixelIndex(x,y);
_SetPixel(x,y,LCD_NUM_COLORS-1-Index);
}
/*
*********************************************************
* *
* LCD_L0_XorPixel *
C51 COMPILER V8.05a LCD13XX 04/11/2008 14:19:22 PAGE 19
* *
*********************************************************
Purpose: This routine is called by emWin. It writes 1 pixel into the
display.
*/
void LCD_L0_XorPixel(int x, int y) {
XORPIXEL(x, y);
}
/*
*********************************************************
* *
* LCD_L0_SetPixelIndex *
* *
*********************************************************
Purpose: This routine is called by emWin. It writes 1 pixel into the
display.
*/
void LCD_L0_SetPixelIndex(int x, int y, int ColorIndex) {
SETPIXEL(x, y, ColorIndex);
}
/*
*********************************************************
* *
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