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5d4266a50e0908ffb5197a8bb4167bba12d7458a
esp8266/libraries/TFT_Touch_Shield_V2/TFTv2.cpp

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/*
2012 Copyright (c) Seeed Technology Inc.
Authors: Albert.Miao & Loovee,
Visweswara R (with initializtion code from TFT vendor)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc.,51 Franklin St,Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <TFTv2.h>
#include <SPI.h>
void TFT::TFTinit (void)
{
pinMode(2, OUTPUT);
pinMode(4, OUTPUT);
pinMode(15, OUTPUT);
SPI.begin();
SPI.setClockDivider(2);
TFT_CS_HIGH;
TFT_DC_HIGH;
INT8U i=0, TFTDriver=0;
for(i=0;i<3;i++)
{
TFTDriver = readID();
}
delay(500);
sendCMD(0x01);
delay(200);
sendCMD(0xCF);
WRITE_DATA(0x00);
WRITE_DATA(0x8B);
WRITE_DATA(0X30);
sendCMD(0xED);
WRITE_DATA(0x67);
WRITE_DATA(0x03);
WRITE_DATA(0X12);
WRITE_DATA(0X81);
sendCMD(0xE8);
WRITE_DATA(0x85);
WRITE_DATA(0x10);
WRITE_DATA(0x7A);
sendCMD(0xCB);
WRITE_DATA(0x39);
WRITE_DATA(0x2C);
WRITE_DATA(0x00);
WRITE_DATA(0x34);
WRITE_DATA(0x02);
sendCMD(0xF7);
WRITE_DATA(0x20);
sendCMD(0xEA);
WRITE_DATA(0x00);
WRITE_DATA(0x00);
sendCMD(0xC0); /* Power control */
WRITE_DATA(0x1B); /* VRH[5:0] */
sendCMD(0xC1); /* Power control */
WRITE_DATA(0x10); /* SAP[2:0];BT[3:0] */
sendCMD(0xC5); /* VCM control */
WRITE_DATA(0x3F);
WRITE_DATA(0x3C);
sendCMD(0xC7); /* VCM control2 */
WRITE_DATA(0XB7);
sendCMD(0x36); /* Memory Access Control */
WRITE_DATA(0x08);
sendCMD(0x3A);
WRITE_DATA(0x55);
sendCMD(0xB1);
WRITE_DATA(0x00);
WRITE_DATA(0x1B);
sendCMD(0xB6); /* Display Function Control */
WRITE_DATA(0x0A);
WRITE_DATA(0xA2);
sendCMD(0xF2); /* 3Gamma Function Disable */
WRITE_DATA(0x00);
sendCMD(0x26); /* Gamma curve selected */
WRITE_DATA(0x01);
sendCMD(0xE0); /* Set Gamma */
WRITE_DATA(0x0F);
WRITE_DATA(0x2A);
WRITE_DATA(0x28);
WRITE_DATA(0x08);
WRITE_DATA(0x0E);
WRITE_DATA(0x08);
WRITE_DATA(0x54);
WRITE_DATA(0XA9);
WRITE_DATA(0x43);
WRITE_DATA(0x0A);
WRITE_DATA(0x0F);
WRITE_DATA(0x00);
WRITE_DATA(0x00);
WRITE_DATA(0x00);
WRITE_DATA(0x00);
sendCMD(0XE1); /* Set Gamma */
WRITE_DATA(0x00);
WRITE_DATA(0x15);
WRITE_DATA(0x17);
WRITE_DATA(0x07);
WRITE_DATA(0x11);
WRITE_DATA(0x06);
WRITE_DATA(0x2B);
WRITE_DATA(0x56);
WRITE_DATA(0x3C);
WRITE_DATA(0x05);
WRITE_DATA(0x10);
WRITE_DATA(0x0F);
WRITE_DATA(0x3F);
WRITE_DATA(0x3F);
WRITE_DATA(0x0F);
sendCMD(0x11); /* Exit Sleep */
delay(120);
sendCMD(0x29); /* Display on */
fillScreen();
}
INT8U TFT::readID(void)
{
INT8U i=0;
INT8U data[3] ;
INT8U ID[3] = {0x00, 0x93, 0x41};
INT8U ToF=1;
for(i=0;i<3;i++)
{
data[i]=Read_Register(0xd3,i+1);
if(data[i] != ID[i])
{
ToF=0;
}
}
if(!ToF) /* data!=ID */
{
Serial.print("Read TFT ID failed, ID should be 0x09341, but read ID = 0x");
for(i=0;i<3;i++)
{
Serial.print(data[i],HEX);
}
Serial.println();
}
return ToF;
}
void TFT::setCol(INT16U StartCol,INT16U EndCol)
{
sendCMD(0x2A); /* Column Command address */
sendData(StartCol);
sendData(EndCol);
}
void TFT::setPage(INT16U StartPage,INT16U EndPage)
{
sendCMD(0x2B); /* Column Command address */
sendData(StartPage);
sendData(EndPage);
}
void TFT::fillScreen(INT16U XL, INT16U XR, INT16U YU, INT16U YD, INT16U color)
{
unsigned long XY=0;
unsigned long i=0;
if(XL > XR)
{
XL = XL^XR;
XR = XL^XR;
XL = XL^XR;
}
if(YU > YD)
{
YU = YU^YD;
YD = YU^YD;
YU = YU^YD;
}
XL = constrain(XL, MIN_X,MAX_X);
XR = constrain(XR, MIN_X,MAX_X);
YU = constrain(YU, MIN_Y,MAX_Y);
YD = constrain(YD, MIN_Y,MAX_Y);
XY = (XR-XL+1);
XY = XY*(YD-YU+1);
Tft.setCol(XL,XR);
Tft.setPage(YU, YD);
Tft.sendCMD(0x2c);
TFT_DC_HIGH;
TFT_CS_LOW;
INT8U Hcolor = color>>8;
INT8U Lcolor = color&0xff;
for(i=0; i < XY; i++)
{
SPI.transfer(Hcolor);
SPI.transfer(Lcolor);
}
TFT_CS_HIGH;
}
void TFT::fillScreen(void)
{
Tft.setCol(0, 239);
Tft.setPage(0, 319);
Tft.sendCMD(0x2c); /* start to write to display ram */
TFT_DC_HIGH;
TFT_CS_LOW;
for(INT16U i=0; i<38400; i++)
{
SPI.transfer(0);
SPI.transfer(0);
SPI.transfer(0);
SPI.transfer(0);
}
TFT_CS_HIGH;
}
void TFT::setXY(INT16U poX, INT16U poY)
{
setCol(poX, poX);
setPage(poY, poY);
sendCMD(0x2c);
}
void TFT::setPixel(INT16U poX, INT16U poY,INT16U color)
{
sendCMD(0x2A); /* Column Command address */
sendData(poX);
sendData(poX);
sendCMD(0x2B); /* Column Command address */
sendData(poY);
sendData(poY);
sendCMD(0x2c);
sendData(color);
}
void TFT::drawChar( INT8U ascii, INT16U poX, INT16U poY,INT16U size, INT16U fgcolor)
{
if((ascii>=32)&&(ascii<=127))
{
;
}
else
{
ascii = '?'-32;
}
for (int i =0; i<FONT_X; i++ ) {
INT8U temp = pgm_read_byte(&simpleFont[ascii-0x20][i]);
for(INT8U f=0;f<8;f++)
{
if((temp>>f)&0x01)
{
fillRectangle(poX+i*size, poY+f*size, size, size, fgcolor);
}
}
}
}
void TFT::drawString(char *string,INT16U poX, INT16U poY, INT16U size,INT16U fgcolor)
{
while(*string)
{
drawChar(*string, poX, poY, size, fgcolor);
*string++;
if(poX < MAX_X)
{
poX += FONT_SPACE*size; /* Move cursor right */
}
}
}
//fillRectangle(poX+i*size, poY+f*size, size, size, fgcolor);
void TFT::fillRectangle(INT16U poX, INT16U poY, INT16U length, INT16U width, INT16U color)
{
fillScreen(poX, poX+length, poY, poY+width, color);
}
void TFT::drawHorizontalLine( INT16U poX, INT16U poY,
INT16U length,INT16U color)
{
setCol(poX,poX + length);
setPage(poY,poY);
sendCMD(0x2c);
for(int i=0; i<length; i++)
sendData(color);
}
void TFT::drawLine( INT16U x0,INT16U y0,INT16U x1, INT16U y1,INT16U color)
{
int x = x1-x0;
int y = y1-y0;
int dx = abs(x), sx = x0<x1 ? 1 : -1;
int dy = -abs(y), sy = y0<y1 ? 1 : -1;
int err = dx+dy, e2; /* error value e_xy */
for (;;)
{ /* loop */
setPixel(x0,y0,color);
e2 = 2*err;
if (e2 >= dy) { /* e_xy+e_x > 0 */
if (x0 == x1) break;
err += dy; x0 += sx;
}
if (e2 <= dx) { /* e_xy+e_y < 0 */
if (y0 == y1) break;
err += dx; y0 += sy;
}
}
}
void TFT::drawVerticalLine( INT16U poX, INT16U poY, INT16U length,INT16U color)
{
setCol(poX,poX);
setPage(poY,poY+length);
sendCMD(0x2c);
for(int i=0; i<length; i++)
sendData(color);
}
void TFT::drawRectangle(INT16U poX, INT16U poY, INT16U length, INT16U width,INT16U color)
{
drawHorizontalLine(poX, poY, length, color);
drawHorizontalLine(poX, poY+width, length, color);
drawVerticalLine(poX, poY, width,color);
drawVerticalLine(poX + length, poY, width,color);
}
void TFT::drawCircle(int poX, int poY, int r,INT16U color)
{
int x = -r, y = 0, err = 2-2*r, e2;
do {
setPixel(poX-x, poY+y,color);
setPixel(poX+x, poY+y,color);
setPixel(poX+x, poY-y,color);
setPixel(poX-x, poY-y,color);
e2 = err;
if (e2 <= y) {
err += ++y*2+1;
if (-x == y && e2 <= x) e2 = 0;
}
if (e2 > x) err += ++x*2+1;
} while (x <= 0);
}
void TFT::fillCircle(int poX, int poY, int r,INT16U color)
{
int x = -r, y = 0, err = 2-2*r, e2;
do {
drawVerticalLine(poX-x, poY-y, 2*y, color);
drawVerticalLine(poX+x, poY-y, 2*y, color);
e2 = err;
if (e2 <= y) {
err += ++y*2+1;
if (-x == y && e2 <= x) e2 = 0;
}
if (e2 > x) err += ++x*2+1;
} while (x <= 0);
}
void TFT::drawTraingle( int poX1, int poY1, int poX2, int poY2, int poX3, int poY3, INT16U color)
{
drawLine(poX1, poY1, poX2, poY2,color);
drawLine(poX1, poY1, poX3, poY3,color);
drawLine(poX2, poY2, poX3, poY3,color);
}
INT8U TFT::drawNumber(long long_num,INT16U poX, INT16U poY,INT16U size,INT16U fgcolor)
{
INT8U char_buffer[10] = "";
INT8U i = 0;
INT8U f = 0;
if (long_num < 0)
{
f=1;
drawChar('-',poX, poY, size, fgcolor);
long_num = -long_num;
if(poX < MAX_X)
{
poX += FONT_SPACE*size; /* Move cursor right */
}
}
else if (long_num == 0)
{
f=1;
drawChar('0',poX, poY, size, fgcolor);
return f;
if(poX < MAX_X)
{
poX += FONT_SPACE*size; /* Move cursor right */
}
}
while (long_num > 0)
{
char_buffer[i++] = long_num % 10;
long_num /= 10;
}
f = f+i;
for(; i > 0; i--)
{
drawChar('0'+ char_buffer[i - 1],poX, poY, size, fgcolor);
if(poX < MAX_X)
{
poX+=FONT_SPACE*size; /* Move cursor right */
}
}
return f;
}
INT8U TFT::drawFloat(float floatNumber,INT8U decimal,INT16U poX, INT16U poY,INT16U size,INT16U fgcolor)
{
INT16U temp=0;
float decy=0.0;
float rounding = 0.5;
INT8U f=0;
if(floatNumber<0.0)
{
drawChar('-',poX, poY, size, fgcolor);
floatNumber = -floatNumber;
if(poX < MAX_X)
{
poX+=FONT_SPACE*size; /* Move cursor right */
}
f =1;
}
for (INT8U i=0; i<decimal; ++i)
{
rounding /= 10.0;
}
floatNumber += rounding;
temp = (INT16U)floatNumber;
INT8U howlong=drawNumber(temp,poX, poY, size, fgcolor);
f += howlong;
if((poX+8*size*howlong) < MAX_X)
{
poX+=FONT_SPACE*size*howlong; /* Move cursor right */
}
if(decimal>0)
{
drawChar('.',poX, poY, size, fgcolor);
if(poX < MAX_X)
{
poX+=FONT_SPACE*size; /* Move cursor right */
}
f +=1;
}
decy = floatNumber-temp; /* decimal part, 4 */
for(INT8U i=0;i<decimal;i++)
{
decy *=10; /* for the next decimal */
temp = decy; /* get the decimal */
drawNumber(temp,poX, poY, size, fgcolor);
floatNumber = -floatNumber;
if(poX < MAX_X)
{
poX+=FONT_SPACE*size; /* Move cursor right */
}
decy -= temp;
}
f +=decimal;
return f;
}
INT8U TFT::drawFloat(float floatNumber,INT16U poX, INT16U poY,INT16U size,INT16U fgcolor)
{
INT8U decimal=2;
INT16U temp=0;
float decy=0.0;
float rounding = 0.5;
INT8U f=0;
if(floatNumber<0.0) /* floatNumber < 0 */
{
drawChar('-',poX, poY, size, fgcolor); /* add a '-' */
floatNumber = -floatNumber;
if(poX < MAX_X)
{
poX+=FONT_SPACE*size; /* Move cursor right */
}
f =1;
}
for (INT8U i=0; i<decimal; ++i)
{
rounding /= 10.0;
}
floatNumber += rounding;
temp = (INT16U)floatNumber;
INT8U howlong=drawNumber(temp,poX, poY, size, fgcolor);
f += howlong;
if((poX+8*size*howlong) < MAX_X)
{
poX+=FONT_SPACE*size*howlong; /* Move cursor right */
}
if(decimal>0)
{
drawChar('.',poX, poY, size, fgcolor);
if(poX < MAX_X)
{
poX += FONT_SPACE*size; /* Move cursor right */
}
f +=1;
}
decy = floatNumber-temp; /* decimal part, */
for(INT8U i=0;i<decimal;i++)
{
decy *=10; /* for the next decimal */
temp = decy; /* get the decimal */
drawNumber(temp,poX, poY, size, fgcolor);
floatNumber = -floatNumber;
if(poX < MAX_X)
{
poX += FONT_SPACE*size; /* Move cursor right */
}
decy -= temp;
}
f += decimal;
return f;
}
TFT Tft=TFT();
/*********************************************************************************************************
END FILE
*********************************************************************************************************/
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