/*****************************************************************************
*
* Description:
* Draw rectangular area with different boardser colors. Currently used
* by example game.
*
****************************************************************************/
void lcdRectBrd (uint8 x, uint8 y, uint8 xLen, uint8 yLen, uint8 color1, uint8 color2, uint8 color3)
{
uint32 i, j;
//select controller
selectLCD (TRUE);
lcdWindow1 (x, y, x + xLen - 1, y + yLen - 1);
lcdWrcmd (LCD_CMD_RAMWR); //write memory
for (i = 0; i < xLen; i++)
lcdWrdata (color2);
for (j = 1; j < (yLen - 2); j++)
{
lcdWrdata (color2);
for (i = 0; i < (xLen - 2); i++)
lcdWrdata (color1);
lcdWrdata (color3);
}
for (i = 0; i < xLen; i++)
lcdWrdata (color3);
//deselect controller
selectLCD (FALSE);
}
/*****************************************************************************
*
* Description:
* Initialize LCD controller for a window (to write in).
* Set start xy-position and xy-length
* No select/deselect of LCD controller.
*
****************************************************************************/
static void lcdWindow1 (uint8 xp, uint8 yp, uint8 xe, uint8 ye)
{
lcdWrcmd (LCD_CMD_CASET); //set X
lcdWrdata (xp + 2);
lcdWrdata (xe + 2);
lcdWrcmd (LCD_CMD_PASET); //set Y
lcdWrdata (yp + 2);
lcdWrdata (ye + 2);
}
/*****************************************************************************
*
* Description:
* Initialize LCD controller for a window (to write in).
* Set start xy-position and xy-length
* No select/deselect of LCD controller.
*
****************************************************************************/
static void
lcdWindow1(tU8 xp, tU8 yp, tU8 xe, tU8 ye)
{
lcdWrcmd(LCD_CMD_CASET); //set X (column address set)
lcdWrdata(xp+2);
lcdWrdata(xe+2);
lcdWrcmd(LCD_CMD_PASET); //set Y (row address set)
lcdWrdata(yp+2);
lcdWrdata(ye+2);
}
/*****************************************************************************
*
* Description:
* Initialize LCD controller for a window (to write in).
* Set start xy-position and xy-length
* No select/deselect of LCD controller.
*
****************************************************************************/
static void
lcdWindow1(tU8 xp, tU8 yp, tU8 xe, tU8 ye)
{
//Why xp/xe/yp/ye+2? Suppose has to be +1, not +2
lcdWrcmd(LCD_CMD_CASET); //set X
lcdWrdata(xp+1);
lcdWrdata(xe+1);
lcdWrcmd(LCD_CMD_PASET); //set Y
lcdWrdata(yp+1);
lcdWrdata(ye+1);
}
/*****************************************************************************
*
* Description:
* Draw rectangular area from bitmap. Specify xy-position and xy-length.
* Compressed format is supported.
*
* In uncompressed color mode, pData points to an area of xLen * yLen
* bytes with the icon.
* In compressed mode the escapeChar is used to denote that the next
* two bytes contain a length and a color (run length encoding)
* Note that is is still possible to specify the color value that
* equals the escape value in a compressed string.
*
****************************************************************************/
void
lcdIcon(tU8 x, tU8 y, tU8 xLen, tU8 yLen, tU8 compressionOn, tU8 escapeChar, const tU8* pData)
{
tU32 i,j;
tS32 len;
//select controller
selectLCD(TRUE);
lcdWindow1(x,y,x+xLen-1,y+yLen-1);
lcdWrcmd(LCD_CMD_RAMWR); //write memory
len = xLen*yLen;
if (compressionOn == FALSE)
{
for(i=0; i<len; i++)
lcdWrdata(*pData++);
}
else
while(len > 0)
{
if(*pData == escapeChar)
{
pData++;
j = *pData++;
for(i=0;i<j;i++)
lcdWrdata(*pData);
pData++;
len -= j;
}
else
{
lcdWrdata(*pData++);
len--;
}
}
//deselect controller
selectLCD(FALSE);
}
/*****************************************************************************
*
* Description:
* Set display contrast
*
****************************************************************************/
void lcdContrast (uint8 cont) //vary between 0 - 127
{
//select controller
selectLCD (TRUE);
//set contrast cmd.
lcdWrcmd (LCD_CMD_SETCON);
lcdWrdata (cont);
//deselect controller
selectLCD (FALSE);
}
/*****************************************************************************
*
* Description:
* Draw a rectangular area with specified color.
*
****************************************************************************/
void lcdRect (uint8 x, uint8 y, uint8 xLen, uint8 yLen, uint8 color)
{
uint32 i;
uint32 len;
//select controller
selectLCD (TRUE);
lcdWindow1 (x, y, x + xLen - 1, y + yLen - 1);
lcdWrcmd (LCD_CMD_RAMWR); //write memory
len = xLen * yLen;
for (i = 0; i < len; i++)
lcdWrdata (color);
//deselect controller
selectLCD (FALSE);
}
/*****************************************************************************
*
* Description:
* Clear screen (with current background color)
*
****************************************************************************/
void lcdClrscr (void)
{
uint32 i;
lcd_x = 0;
lcd_y = 0;
//select controller
selectLCD (TRUE);
lcdWindow1 (255, 255, 128, 128);
lcdWrcmd (LCD_CMD_RAMWR); //write memory
for (i = 0; i < 16900; i++)
lcdWrdata (bkgColor);
//deselect controller
selectLCD (FALSE);
}
/*****************************************************************************
*
* Description:
* Draw one character withc current foreground and background color
* at current xy position on display. Update x-position (+8).
*
****************************************************************************/
void
lcdData(tU8 data)
{
//select controller
selectLCD(TRUE);
if (data <= 127)
{
tU32 mapOffset;
tU8 i,j,byteToShift;
data -= 30;
mapOffset = 14*data;
lcdWrcmd(LCD_CMD_CASET);
lcdWrdata(lcd_x+2);
lcdWrdata(lcd_x+9);
lcdWrcmd(LCD_CMD_PASET);
lcdWrdata(lcd_y+2);
lcdWrdata(lcd_y+15);
lcdWrcmd(LCD_CMD_RAMWR);
for(i=0; i<14; i++)
{
byteToShift = charMap[mapOffset++];
for(j=0; j<8; j++)
{
if (byteToShift & 0x80)
lcdWrdata(textColor);
else
lcdWrdata(bkgColor);
byteToShift <<= 1;
}
}
}
//deselect controller
selectLCD(FALSE);
lcd_x += 8;
}
/*****************************************************************************
*
* Description:
* Initialize the LCD controller and SPI interface
* (0,0) is top left and (129,129) is bottom right
* 8 bits Color mode uses RRRGGGBB layout
*
****************************************************************************/
void lcdInit (void)
{
bkgColor = 0;
textColor = 0;
//init SPI interface
initSpiForLcd ();
//select controller
selectLCD (TRUE);
lcdWrcmd (LCD_CMD_SWRESET);
osSleep (1);
lcdWrcmd (LCD_CMD_SLEEPOUT);
lcdWrcmd (LCD_CMD_DISPON);
lcdWrcmd (LCD_CMD_BSTRON);
osSleep (1);
lcdWrcmd (LCD_CMD_MADCTL); //Memory data acces control
lcdWrdata (MADCTL_HORIZ); //X Mirror and BGR format
lcdWrcmd (LCD_CMD_COLMOD); //Colour mode
lcdWrdata (0x02); //256 colour mode select
lcdWrcmd (LCD_CMD_INVON); //Non Invert mode
lcdWrcmd (LCD_CMD_RGBSET); //LUT write
lcdWrdata (0); //Red
lcdWrdata (2);
lcdWrdata (4);
lcdWrdata (6);
lcdWrdata (9);
lcdWrdata (11);
lcdWrdata (13);
lcdWrdata (15);
lcdWrdata (0); //Green
lcdWrdata (2);
lcdWrdata (4);
lcdWrdata (6);
lcdWrdata (9);
lcdWrdata (11);
lcdWrdata (13);
lcdWrdata (15);
lcdWrdata (0); //Blue
lcdWrdata (6);
lcdWrdata (10);
lcdWrdata (15);
//deselect controller
selectLCD (FALSE);
lcdContrast (56);
lcdClrscr ();
}
/*****************************************************************************
*
* Description:
* Initialize the LCD controller and SPI interface
* (0,0) is top left and (129,129) is bottom right
* 8 bits Color mode uses RRRGGGBB layout
*
****************************************************************************/
void
lcdInit(void)
{
bkgColor = 0;
textColor = 0;
//init SPI interface
initSpiForLcd();
//select controller
selectLCD(TRUE);
lcdWrcmd(LCD_CMD_SWRESET); //Software reset - Reset default values and all segment & common outputs are set to VC (display off: blank display)
osSleep(1);
lcdWrcmd(LCD_CMD_SLEEPOUT); //switch off SLEEPIN mode
lcdWrcmd(LCD_CMD_DISPON); //Turn on the display screen according to the current display data RAM content and the display timing and setting
lcdWrcmd(LCD_CMD_BSTRON); //Booster ON- This command turns on booster related circuit
osSleep(1);
lcdWrcmd(LCD_CMD_MADCTL); //Memory data acces control
lcdWrdata(MADCTL_HORIZ); //X Mirror and BGR format
lcdWrcmd(LCD_CMD_COLMOD); //Colour mode
lcdWrdata(0x02); //256 colour mode select
lcdWrcmd(LCD_CMD_INVON); //Non Invert mode
lcdWrcmd(LCD_CMD_RGBSET); //LUT write, Colour Set for 256-Color Display
lcdWrdata(0); //Red
lcdWrdata(2);
lcdWrdata(4);
lcdWrdata(6);
lcdWrdata(9);
lcdWrdata(11);
lcdWrdata(13);
lcdWrdata(15);
lcdWrdata(0); //Green
lcdWrdata(2);
lcdWrdata(4);
lcdWrdata(6);
lcdWrdata(9);
lcdWrdata(11);
lcdWrdata(13);
lcdWrdata(15);
lcdWrdata(0); //Blue
lcdWrdata(6);
lcdWrdata(10);
lcdWrdata(15);
//deselect controller
selectLCD(FALSE);
lcdContrast(56);
lcdClrscr();
}
