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ILI9225_due.cpp
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/*
ILI9225_due_.cpp - Arduino Due library for interfacing with (write only) ILI9225-based TFTs
Copyright (c) 2019 by Martin Zwerschke
based on:
ILI9341_due_.cpp - Arduino Due library for interfacing with ILI9341-based TFTs
(https://github.com/marekburiak/ILI341_Due)
Copyright (c) 2014 Marek Buriak
This library is based on ILI9341_t3 library from Paul Stoffregen
(https://github.com/PaulStoffregen/ILI9341_t3), Adafruit_ILI9341
and Adafruit_GFX libraries from Limor Fried/Ladyada
(https://github.com/adafruit/Adafruit_ILI9341).
and on ILI9225_t3.cpp by Bruce Tsao
(https://github.com/brucetsao/LIB_for_MCU/tree/master/Arduino_Lib/libraries/ILI9225_t3)
This file is part of the Arduino ILI9225_Due library.
Sources for this library can be found at https://github.com/martinzw/ILI9225_Due.
ILI9225_Due 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.
ILI9225_Due 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 ILI9225_Due. If not, see <http://www.gnu.org/licenses/>.
*/
/***************************************************
This is our library for the Adafruit ILI9225 Breakout and Shield
----> http://www.adafruit.com/products/1651
Check out the links above for our tutorials and wiring diagrams
These displays use SPI to communicate, 4 or 5 pins are required to
interface (RST is optional)
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
MIT license, all text above must be included in any redistribution.
****************************************************/
//Path to SPI.h could be:
//c:\users\username\AppData\Local\arduino15\packages\arduino\hardware\sam\1.6.12\libraries\SPI\src\SPI.h"
#include "ILI9225_due.h"
#if SPI_MODE_NORMAL | SPI_MODE_EXTENDED | defined(ILI_USE_SPI_TRANSACTION)
#include <SPI.h>
#endif
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wattributes"
#pragma GCC diagnostic ignored "-Wswitch"
ILI9225_due::ILI9225_due(uint8_t cs, uint8_t dc, uint8_t rst) //Constructor
{
_cs = cs;
_dc = dc;
_rst = rst;
_spiClkDivider = ILI9225_SPI_CLKDIVIDER;
_width = ILI9225_TFTWIDTH;
_height = ILI9225_TFTHEIGHT;
_area.x = 0;
_area.y = 0;
_area.w = ILI9225_TFTWIDTH;
_area.h = ILI9225_TFTHEIGHT;
_rotation = iliRotation0;
_arcAngleMax = DEFAULT_ARC_ANGLE_MAX;
_angleOffset = DEFAULT_ANGLE_OFFSET;
#ifdef ILI_USE_SPI_TRANSACTION
_isInTransaction = false;
#endif
_fontMode = gTextFontModeSolid;
_fontBgColor = ILI9225_BLACK;
_fontColor = ILI9225_WHITE;
_letterSpacing = DEFAULT_LETTER_SPACING;
_lineSpacing = DEFAULT_LINE_SPACING;
#ifdef TEXT_SCALING_ENABLED
_textScale = 1;
#endif
_isFirstChar = true;
setTextArea(0, 0, _width - 1, _height - 1);
}
bool ILI9225_due::begin(void)
{
if (pinIsChipSelect(_cs))
{
pinMode(_dc, OUTPUT);
_dcport = portOutputRegister(digitalPinToPort(_dc));
_dcpinmask = digitalPinToBitMask(_dc);
#if SPI_MODE_NORMAL | SPI_MODE_DMA
pinMode(_cs, OUTPUT);
_csport = portOutputRegister(digitalPinToPort(_cs));
_cspinmask = digitalPinToBitMask(_cs);
#endif
#if SPI_MODE_NORMAL
SPI.begin();
#elif SPI_MODE_EXTENDED
SPI.begin(_cs);
#elif SPI_MODE_DMA
dmaBegin();
#endif
setSPIClockDivider(ILI9225_SPI_CLKDIVIDER);
// toggle RST low to reset
if (_rst < 255)
{
pinMode(_rst, OUTPUT);
digitalWrite(_rst, HIGH);
delay(5);
digitalWrite(_rst, LOW);
delay(20);
digitalWrite(_rst, HIGH);
delay(150);
}
/* //If ILI9225 board has go an illumination
if (_led < 255)
{
pinMode(_led, OUTPUT);
analogWrite(_led, 255);
}
*/
beginTransaction();
// Power-on sequence
writeRegister(ILI9225_POWER_CTRL1, 0x0000); // Set SAP,DSTB,STB
writeRegister(ILI9225_POWER_CTRL2, 0x0000); // Set APON,PON,AON,VCI1EN,VC
writeRegister(ILI9225_POWER_CTRL3, 0x0000); // Set BT,DC1,DC2,DC3
writeRegister(ILI9225_POWER_CTRL4, 0x0000); // Set GVDD
writeRegister(ILI9225_POWER_CTRL5, 0x0000); // Set VCOMH/VCOML voltage
delay(40);
// Power-on sequence
writeRegister(ILI9225_POWER_CTRL2, 0x0018); // Set APON,PON,AON,VCI1EN,VC
writeRegister(ILI9225_POWER_CTRL3, 0x6121); // Set BT,DC1,DC2,DC3
writeRegister(ILI9225_POWER_CTRL4, 0x006F); // Set GVDD /*007F 0088 */
writeRegister(ILI9225_POWER_CTRL5, 0x495F); // Set VCOMH/VCOML voltage
writeRegister(ILI9225_POWER_CTRL1, 0x0F00); // Set SAP,DSTB,STB
delay(10);
writeRegister(ILI9225_POWER_CTRL2, 0x103B); // Set APON,PON,AON,VCI1EN,VC
delay(50);
writeRegister(ILI9225_DRIVER_OUTPUT_CTRL, 0x011C); // set the display line number and display direction
writeRegister(ILI9225_LCD_AC_DRIVING_CTRL, 0x0100); // set 1 line inversion
writeRegister(ILI9225_ENTRY_MODE, 0x01030); // set GRAM write direction and BGR=1.
writeRegister(ILI9225_DISP_CTRL1, 0x0000); // Display off
writeRegister(ILI9225_DISP_CTRL2, 0x0808); // set the back porch and front porch
writeRegister(ILI9225_FRAME_CYCLE_CTRL, 0x1100); // set the clocks number per line
writeRegister(ILI9225_INTERFACE_CTRL, 0x0000); // CPU interface
writeRegister(ILI9225_OSC_CTRL, 0x0D01); // Set Osc /*0e01*/
writeRegister(ILI9225_VCI_RECYCLING, 0x0020); // Set VCI recycling
writeRegister(ILI9225_RAM_ADDR_SET1, 0x0000); // RAM Address
writeRegister(ILI9225_RAM_ADDR_SET2, 0x0000); // RAM Address
/* Set GRAM area */
writeRegister(ILI9225_GATE_SCAN_CTRL, 0x0000);
writeRegister(ILI9225_VERTICAL_SCROLL_CTRL1, 0x00DB);
writeRegister(ILI9225_VERTICAL_SCROLL_CTRL2, 0x0000);
writeRegister(ILI9225_VERTICAL_SCROLL_CTRL3, 0x0000);
writeRegister(ILI9225_PARTIAL_DRIVING_POS1, 0x00DB);
writeRegister(ILI9225_PARTIAL_DRIVING_POS2, 0x0000);
writeRegister(ILI9225_HORIZONTAL_WINDOW_ADDR1, 0x00AF);
writeRegister(ILI9225_HORIZONTAL_WINDOW_ADDR2, 0x0000);
writeRegister(ILI9225_VERTICAL_WINDOW_ADDR1, 0x00DB);
writeRegister(ILI9225_VERTICAL_WINDOW_ADDR2, 0x0000);
/* Set GAMMA curve */
writeRegister(ILI9225_GAMMA_CTRL1, 0x0000);
writeRegister(ILI9225_GAMMA_CTRL2, 0x0808);
writeRegister(ILI9225_GAMMA_CTRL3, 0x080A);
writeRegister(ILI9225_GAMMA_CTRL4, 0x000A);
writeRegister(ILI9225_GAMMA_CTRL5, 0x0A08);
writeRegister(ILI9225_GAMMA_CTRL6, 0x0808);
writeRegister(ILI9225_GAMMA_CTRL7, 0x0000);
writeRegister(ILI9225_GAMMA_CTRL8, 0x0A00);
writeRegister(ILI9225_GAMMA_CTRL9, 0x0710);
writeRegister(ILI9225_GAMMA_CTRL10, 0x0710);
writeRegister(ILI9225_DISP_CTRL1, 0x0012);
delay(50);
writeRegister(ILI9225_DISP_CTRL1, 0x1017);
endTransaction();
setRotation(iliRotation0,0);
fillScreen();
//#ifdef ILI_USE_SPI_TRANSACTION
//#if SPI_MODE_NORMAL | SPI_MODE_EXTENDED
endTransaction();
//#endif
//#endif
return true;
}
else //of if (pinIsChipSelect(_cs))
{
return false;
}
}
bool ILI9225_due::pinIsChipSelect(uint8_t cs)
{
#if SPI_MODE_EXTENDED
if (cs == 4 || cs == 10 || cs == 52) // in Extended SPI mode only these pins are valid
{
return true;
}
else
{
Serial.print("Pin ");
Serial.print(_cs);
Serial.println(" is not a valid Chip Select pin for SPI Extended Mode. Valid pins are 4, 10, 52");
return false;
}
#elif SPI_MODE_NORMAL | SPI_MODE_DMA
return true;
#endif
}
void ILI9225_due::getDisplayStatus(void)
{
/* --- no way! ILI9225-board can not be read out but only written (there is no SPI line for reading)
//I left the code her, if your board has got a pin for reading, but it is not adapted to the ILI9225 but to the ILI9431
beginTransaction();
uint8_t x = readcommand8(ILI9225_RDMODE);
Serial.print(F("\nDisplay Power Mode: 0x")); Serial.println(x, HEX);
Serial.print(F(" Booster: ")); Serial.println(x & 0x80 ? F("On and working OK") : F("Off or has a fault"));
Serial.print(F(" Idle Mode: ")); Serial.println(x & 0x40 ? F("On") : F("Off"));
Serial.print(F(" Partial Mode: ")); Serial.println(x & 0x20 ? F("On") : F("Off"));
Serial.print(F(" Sleep Mode: ")); Serial.println(x & 0x10 ? F("Off") : F("On"));
Serial.print(F(" Display Normal Mode: ")); Serial.println(x & 0x08 ? F("On") : F("Off"));
Serial.print(F(" Display: ")); Serial.println(x & 0x04 ? F("On") : F("Off"));
x = readcommand8(ILI9225_RDMADCTL);
Serial.print(F("MADCTL Mode: 0x")); Serial.println(x, HEX);
Serial.println(x & 0x80 ? F(" Bottom to Top") : F(" Top to Bottom"));
Serial.println(x & 0x40 ? F(" Right to Left") : F(" Left to Right"));
Serial.println(x & 0x20 ? F(" Normal Mode") : F(" Reverse Mode"));
Serial.println(x & 0x10 ? F(" LCD Refresh Bottom to Top") : F(" LCD Refresh Top to Bottom"));
Serial.println(x & 0x08 ? F(" BGR") : F("RGB"));
Serial.println(x & 0x04 ? F(" LCD Refresh Right to Left") : F(" LCD Refresh Left to Right"));
x = readcommand8(ILI9225_RDPIXFMT);
Serial.print(F("Pixel Format: 0x")); Serial.println(x, HEX);
if ((x & 0x07) == 0x05)
Serial.println(F(" 16 bits/pixel"));
if ((x & 0x07) == 0x06)
Serial.println(F(" 18 bits/pixel"));
x = readcommand8(ILI9225_RDIMGFMT);
Serial.print(F("Image Format: 0x")); Serial.println(x, HEX);
if ((x & 0x07) == 0x00)
Serial.println(F(" Gamma curve 1"));
x = readcommand8(ILI9225_RDDSPSGNMODE);
Serial.print(F("Display Signal Mode: 0x")); Serial.println(x, HEX);
Serial.print(F(" Tearing effect line: ")); Serial.println(x & 0x80 ? F("On") : F("Off"));
Serial.print(F(" Tearing effect line: mode ")); Serial.println(x & 0x40 ? F("2") : F("1"));
Serial.print(F(" Horizontal sync: ")); Serial.println(x & 0x20 ? F("On") : F("Off"));
Serial.print(F(" Vertical sync: ")); Serial.println(x & 0x10 ? F("On") : F("Off"));
Serial.print(F(" Pixel clock: ")); Serial.println(x & 0x08 ? F("On") : F("Off"));
Serial.print(F(" Data enable: ")); Serial.println(x & 0x04 ? F("On") : F("Off"));
x = readcommand8(ILI9225_RDSELFDIAG);
Serial.print(F("Self Diagnostic: 0x")); Serial.println(x, HEX);
Serial.print(F(" Register Loading: ")); Serial.println(x & 0x80 ? F("working") : F("not working"));
Serial.print(F(" Functionality: ")); Serial.println(x & 0x40 ? F("working") : F("not working"));
endTransaction();
*/
}
void ILI9225_due::setSPIClockDivider(uint8_t divider)
{
_spiClkDivider = divider;
#ifdef ILI_USE_SPI_TRANSACTION
#if defined (ARDUINO_SAM_DUE)
_spiSettings = SPISettings(F_CPU / divider, MSBFIRST, SPI_MODE0);
#elif defined (ARDUINO_ARCH_AVR)
#if divider == SPI_CLOCK_DIV2
_spiSettings = SPISettings(F_CPU / 2, MSBFIRST, SPI_MODE0);
#elif divider == SPI_CLOCK_DIV4
_spiSettings = SPISettings(F_CPU / 4, MSBFIRST, SPI_MODE0);
#elif divider == SPI_CLOCK_DIV8
_spiSettings = SPISettings(F_CPU / 8, MSBFIRST, SPI_MODE0);
#elif divider == SPI_CLOCK_DIV16
_spiSettings = SPISettings(F_CPU / 16, MSBFIRST, SPI_MODE0);
#elif divider == SPI_CLOCK_DIV32
_spiSettings = SPISettings(F_CPU / 32, MSBFIRST, SPI_MODE0);
#elif divider == SPI_CLOCK_DIV64
_spiSettings = SPISettings(F_CPU / 64, MSBFIRST, SPI_MODE0);
#elif divider == SPI_CLOCK_DIV128
_spiSettings = SPISettings(F_CPU / 128, MSBFIRST, SPI_MODE0);
#endif
#endif
#endif
#ifdef ILI_USE_SPI_TRANSACTION
beginTransaction();
#else
#if SPI_MODE_NORMAL
SPI.setClockDivider(divider);
SPI.setBitOrder(MSBFIRST);
SPI.setDataMode(SPI_MODE0);
#elif SPI_MODE_EXTENDED
SPI.setClockDivider(_cs, divider);
SPI.setBitOrder(_cs, MSBFIRST);
SPI.setDataMode(_cs, SPI_MODE0);
#endif
#endif
#if SPI_MODE_DMA
dmaInit(divider);
#endif
}
void ILI9225_due::setAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1)
{
beginTransaction();
enableCS();
setAddrAndRW_cont(x0, y0, x1 - x0 + 1, y1 - y0 + 1);
disableCS();
endTransaction();
}
void ILI9225_due::setAddrWindowRect(uint16_t x, uint16_t y, uint16_t w, uint16_t h)
{
beginTransaction();
enableCS();
setAddrAndRW_cont(x, y, w, h);
disableCS();
endTransaction();
}
void ILI9225_due::pushColor(uint16_t color)
{
beginTransaction();
enableCS();
setDCForControlOrGRAM();
write16_last(color);
endTransaction();
}
void ILI9225_due::pushColors(const uint16_t *colors, uint16_t offset, uint32_t len)
{
beginTransaction();
enableCS();
pushColors_noTrans_noCS(colors, offset, len);
disableCS();
endTransaction();
}
void ILI9225_due::pushColors(uint16_t *colors, uint16_t offset, uint32_t len)
{
beginTransaction();
enableCS();
setDCForControlOrGRAM();
colors = colors + offset;
write_cont(colors, len);
disableCS();
endTransaction();
}
void ILI9225_due::pushColors_noTrans_noCS(const uint16_t *colors, uint16_t offset, uint32_t len)
{
setDCForControlOrGRAM();
colors = colors + offset;
#if SPI_MODE_DMA
const uint32_t numLoops = len / (uint32_t)SCANLINE_PIXEL_COUNT;
for (uint32_t l = 0; l < numLoops; l++)
{
for (uint32_t i = 0; i < SCANLINE_PIXEL_COUNT; i++)
{
_scanline16[i] = colors[l*SCANLINE_PIXEL_COUNT + i];
}
writeScanline16(SCANLINE_PIXEL_COUNT);
}
uint16_t remainingPixels = len % SCANLINE_PIXEL_COUNT;
if (remainingPixels > 0) {
for (uint32_t i = 0; i < remainingPixels; i++)
{
_scanline16[i] = colors[numLoops*SCANLINE_PIXEL_COUNT + i];
}
writeScanline16(remainingPixels);
}
#else
write_cont(colors, len);
#endif
}
void ILI9225_due::drawPixel(int16_t x, int16_t y, uint16_t color)
{
beginTransaction();
enableCS();
drawPixel_last(x, y, color);
disableCS();
endTransaction();
}
void ILI9225_due::drawImage(const uint16_t *colors, uint16_t x, uint16_t y, uint16_t w, uint16_t h)
{
const uint32_t totalPixels = (uint32_t)w*(uint32_t)h;
beginTransaction();
enableCS();
setAddrAndRW_cont(x, y, w, h);
pushColors_noTrans_noCS(colors, 0, totalPixels);
disableCS();
endTransaction();
}
void ILI9225_due::drawFastVLine(int16_t x, int16_t y, uint16_t h, uint16_t color)
{
beginTransaction();
drawFastVLine_noTrans(x, y, h, color);
endTransaction();
}
void ILI9225_due::drawFastVLine_noTrans(int16_t x, int16_t y, uint16_t h, uint16_t color)
{
// Rudimentary clipping
if ((x >= _width) || (y >= _height)) return;
if ((y + (int16_t)h - 1) >= _height) h = _height - y;
fillScanline16(color, min(h, SCANLINE_PIXEL_COUNT));
enableCS();
setAddrAndRW_cont(x, y, 1, h);
setDCForControlOrGRAM();
#ifdef ARDUINO_SAM_DUE
writeScanline16(h);
#elif defined ARDUINO_ARCH_AVR
writeScanlineLooped(h);
#endif
disableCS();
}
void ILI9225_due::drawFastVLine_cont_noFill(int16_t x, int16_t y, int16_t h, uint16_t color)
{
// Rudimentary clipping
// if ((x >= _width) || (y >= _height)) return;
// if ((y + h - 1) >= _height) h = _height - y;
//
// setAddrAndRW_cont(x, y, 1, h);
// setDCForData();
//#if SPI_MODE_NORMAL | SPI_MODE_EXTENDED
// while (h-- > 0) {
// write16_cont(color);
// }
//#elif SPI_MODE_DMA
// writeScanline(h);
//#endif
if ((x >= _width) || (y >= _height)) return;
if ((y + h - 1) >= _height) h = _height - y;
setAddrAndRW_cont(x, y, 1, h);
setDCForControlOrGRAM();
#ifdef ARDUINO_SAM_DUE
writeScanline16(h);
#elif defined ARDUINO_ARCH_AVR
writeScanlineLooped(h);
#endif
}
void ILI9225_due::drawFastHLine(int16_t x, int16_t y, uint16_t w, uint16_t color)
{
beginTransaction();
drawFastHLine_noTrans(x, y, w, color);
endTransaction();
}
void ILI9225_due::drawFastHLine_noTrans(int16_t x, int16_t y, uint16_t w, uint16_t color)
{
// Rudimentary clipping
if ((x >= _width) || (y >= _height)) return;
if ((x + (int16_t)w - 1) >= _width) w = _width - x;
fillScanline16(color, min(w, SCANLINE_PIXEL_COUNT));
enableCS();
setAddrAndRW_cont(x, y, w, 1);
setDCForControlOrGRAM();
#ifdef ARDUINO_SAM_DUE
writeScanline16(w);
#elif defined ARDUINO_ARCH_AVR
writeScanlineLooped(w);
#endif
disableCS();
}
void ILI9225_due::fillScreen(uint16_t color)
{
const uint32_t numLoops = (uint32_t)76800 / (uint32_t)SCANLINE_PIXEL_COUNT;
fillScanline16(color);
beginTransaction();
enableCS();
setAddrAndRW_cont(0, 0, _width, _height);
setDCForControlOrGRAM();
for (uint32_t l = 0; l < numLoops; l++)
{
writeScanline16(SCANLINE_PIXEL_COUNT);
}
disableCS();
endTransaction();
//#endif
}
// fill a rectangle
void ILI9225_due::fillRect(int16_t x, int16_t y, uint16_t w, uint16_t h, uint16_t color)
{
beginTransaction();
fillRect_noTrans(x, y, w, h, color);
endTransaction();
}
void ILI9225_due::fillRectWithShader(int16_t x, int16_t y, uint16_t w, uint16_t h, uint16_t(*fillShader)(uint16_t rx, uint16_t ry))
{
beginTransaction();
fillRectWithShader_noTrans(x, y, w, h, fillShader);
endTransaction();
}
// fill a rectangle
void ILI9225_due::fillRect_noTrans(int16_t x, int16_t y, uint16_t w, uint16_t h, uint16_t color)
{
//Serial << "x:" << x << " y:" << y << " w:" << x << " h:" << h << " width:" << _width << " height:" << _height <<endl;
// rudimentary clipping (drawChar w/big text requires this)
if ((x >= _width) || (y >= _height) || (x + w - 1 < 0) || (y + h - 1 < 0)) return;
if ((x + (int16_t)w - 1) >= _width) w = _width - x;
if ((y + (int16_t)h - 1) >= _height) h = _height - y;
const uint32_t totalPixels = (uint32_t)w*(uint32_t)h;
fillScanline16(color, min(totalPixels, SCANLINE_PIXEL_COUNT));
enableCS();
setAddrAndRW_cont(x, y, w, h);
setDCForControlOrGRAM();
writeScanlineLooped(totalPixels);
disableCS();
}
void ILI9225_due::fillRectWithShader_noTrans(int16_t x, int16_t y, uint16_t w, uint16_t h, uint16_t(*fillShader)(uint16_t rx, uint16_t ry))
{
//Serial << "x:" << x << " y:" << y << " w:" << x << " h:" << h << " width:" << _width << " height:" << _height <<endl;
// rudimentary clipping (drawChar w/big text requires this)
if ((x >= _width) || (y >= _height) || (x + w - 1 < 0) || (y + h - 1 < 0)) return;
if ((x + (int16_t)w - 1) >= _width) w = _width - x;
if ((y + (int16_t)h - 1) >= _height) h = _height - y;
enableCS();
setAddrAndRW_cont(x, y, w, h);
setDCForControlOrGRAM();
for (uint16_t ry = 0; ry < h; ry++)
{
for (uint16_t rx = 0; rx < w; rx++)
{
_scanline16[rx] = fillShader(rx, ry);
}
writeScanline16(w);
}
disableCS();
}
void ILI9225_due::setRotation(iliRotation r, uint8_t i)
{
beginTransaction();
_rotation = (iliRotation) (r % 4); // can't be higher than 3
i = i % 2; // can't be higher than 1
writecommand_cont(ILI9225_DRIVER_OUTPUT_CTRL); //VSPL HSPL DPL EPL 0 SM GS SS 0 0 0 NL4 NL3 NL2 NL1 NL0
// 0 0 0 0 0 0 1/0 1/0 0 0 0 1 1 1 0 0
if(!_rotation) //0°
{ //Command register ILI9225_DRIVER_OUTPUT_CTRL was selected before
setDCForControlOrGRAM();
write16_cont(i ? 0x001C:0x011C); //normal: GS=0 SS=1 ; inverted: GS=0 SS=0
setDCForIndexOrStatus();
writecommand_cont(ILI9225_ENTRY_MODE); // 0 0 0 BGR 0 0 MDT1 MDT0 0 0 I/D1 I/D0 AM 0 0 0
setDCForControlOrGRAM();
write16_last(0x1030); // 0 0 0 1 0 0 0 0 0 0 1 1 0 0 0 0 =>AM=0
endTransaction();
startH = ILI9225_HORIZONTAL_WINDOW_ADDR2;
endH = ILI9225_HORIZONTAL_WINDOW_ADDR1;
startV = ILI9225_VERTICAL_WINDOW_ADDR2;
endV = ILI9225_VERTICAL_WINDOW_ADDR1;
ramAddrOne = ILI9225_RAM_ADDR_SET1;
ramAddrTwo = ILI9225_RAM_ADDR_SET2;
_width = ILI9225_TFTWIDTH;
_height = ILI9225_TFTHEIGHT;
}
else if(_rotation == 1) //90°
{ //Command register ILI9225_DRIVER_OUTPUT_CTRL was selected before
setDCForControlOrGRAM();
write16_cont(i ? 0x021C:0x001C); //normal: GS=0 SS=0 ; inverted: GS=1 SS=0
setDCForIndexOrStatus();
writecommand_cont(ILI9225_ENTRY_MODE); // 0 0 0 BGR 0 0 MDT1 MDT0 0 0 I/D1 I/D0 AM 0 0 0
setDCForControlOrGRAM();
write16_last(0x1038); // 0 0 0 1 0 0 0 0 0 0 1 0 1 0 0 0 =>AM=1 I/D=10
endTransaction();
startH = ILI9225_VERTICAL_WINDOW_ADDR2;
endH = ILI9225_VERTICAL_WINDOW_ADDR1;
startV = ILI9225_HORIZONTAL_WINDOW_ADDR2;
endV = ILI9225_HORIZONTAL_WINDOW_ADDR1;
ramAddrOne = ILI9225_RAM_ADDR_SET2;
ramAddrTwo = ILI9225_RAM_ADDR_SET1;
_width = ILI9225_TFTHEIGHT;
_height = ILI9225_TFTWIDTH;
}
else if(_rotation == 2) //180°
{ //Command register ILI9225_DRIVER_OUTPUT_CTRL was selected before
setDCForControlOrGRAM();
write16_cont(i ? 0x031C:0x021C); //normal: GS=1 SS=0 ; inverted: GS=1 SS=1
setDCForIndexOrStatus();
writecommand_cont(ILI9225_ENTRY_MODE); // 0 0 0 BGR 0 0 MDT1 MDT0 0 0 I/D1 I/D0 AM 0 0 0
setDCForControlOrGRAM();
write16_last(0x1030); // 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 =>AM=0 I/D =00
endTransaction();
startH = ILI9225_HORIZONTAL_WINDOW_ADDR2;
endH = ILI9225_HORIZONTAL_WINDOW_ADDR1;
startV = ILI9225_VERTICAL_WINDOW_ADDR2;
endV = ILI9225_VERTICAL_WINDOW_ADDR1;
ramAddrOne = ILI9225_RAM_ADDR_SET1;
ramAddrTwo = ILI9225_RAM_ADDR_SET2;
_width = ILI9225_TFTWIDTH;
_height = ILI9225_TFTHEIGHT;
}
else if(_rotation == 3) //270°
{ //Command register ILI9225_DRIVER_OUTPUT_CTRL was selected before
setDCForControlOrGRAM();
write16_cont(i ? 0x011C:0x031C); //normal: GS=1 SS=1 ; inverted: GS=0 SS=1
setDCForIndexOrStatus();
writecommand_cont(ILI9225_ENTRY_MODE); // 0 0 0 BGR 0 0 MDT1 MDT0 0 0 I/D1 I/D0 AM 0 0 0
setDCForControlOrGRAM();
write16_last(0x1038); // 0 0 0 1 0 0 0 0 0 0 1 1 1 0 0 0 =>AM=1 I/D=01
endTransaction();
startH = ILI9225_VERTICAL_WINDOW_ADDR2;
endH = ILI9225_VERTICAL_WINDOW_ADDR1;
startV = ILI9225_HORIZONTAL_WINDOW_ADDR2;
endV = ILI9225_HORIZONTAL_WINDOW_ADDR1;
ramAddrOne = ILI9225_RAM_ADDR_SET2;
ramAddrTwo = ILI9225_RAM_ADDR_SET1;
_width = ILI9225_TFTHEIGHT;
_height = ILI9225_TFTWIDTH;
}
else //should not happen... handle like 0°
{ //Command register ILI9225_DRIVER_OUTPUT_CTRL was selected before
setDCForControlOrGRAM();
write16_cont(i ? 0x001C:0x011C); //normal: GS=0 SS=1 ; inverted: GS=0 SS=0
setDCForIndexOrStatus();
writecommand_cont(ILI9225_ENTRY_MODE); // 0 0 0 BGR 0 0 MDT1 MDT0 0 0 I/D1 I/D0 AM 0 0 0
setDCForControlOrGRAM();
write16_last(0x1030); // 0 0 0 1 0 0 0 0 0 0 1 1 0 0 0 0 =>AM=0
endTransaction();
}
// _area.x = 0;
// _area.y = 0;
_area.w = _width;
_area.h = _height;
}
void ILI9225_due::invertDisplay(boolean i)
{
setRotation(_rotation, i ? 1:0);
}
/*
// Reads one pixel/color from the TFT's GRAM
uint16_t ILI9225_due::readPixel(int16_t x, int16_t y)
{
beginTransaction();
//setAddr_cont(x, y, x + 1, y + 1); ? should it not be x,y,x,y?
setAddr_cont(x, y, 1, 1);
writecommand_cont(ILI9225_RAMRD); // read from RAM
readdata8_cont(); // dummy read
uint8_t red = read8_cont();
uint8_t green = read8_cont();
uint8_t blue = read8_last();
uint16_t color = color565(red, green, blue);
endTransaction();
return color;
}
*/
// DrawArc function thanks to Jnmattern and his Arc_2.0 (https://github.com/Jnmattern)
void ILI9225_due::fillArcOffsetted(uint16_t cx, uint16_t cy, uint16_t radius, uint16_t thickness, float start, float end, uint16_t color)
{
int16_t xmin = 65535, xmax = -32767, ymin = 32767, ymax = -32767;
float cosStart, sinStart, cosEnd, sinEnd;
float r, t;
float startAngle, endAngle;
//Serial << "start: " << start << " end: " << end << endl;
startAngle = (start / _arcAngleMax) * 360; // 252
endAngle = (end / _arcAngleMax) * 360; // 807
//Serial << "startAngle: " << startAngle << " endAngle: " << endAngle << endl;
while (startAngle < 0) startAngle += 360;
while (endAngle < 0) endAngle += 360;
while (startAngle > 360) startAngle -= 360;
while (endAngle > 360) endAngle -= 360;
//Serial << "startAngleAdj: " << startAngle << " endAngleAdj: " << endAngle << endl;
//if (endAngle == 0) endAngle = 360;
if (startAngle > endAngle)
{
fillArcOffsetted(cx, cy, radius, thickness, ((startAngle) / (float)360) * _arcAngleMax, _arcAngleMax, color);
fillArcOffsetted(cx, cy, radius, thickness, 0, ((endAngle) / (float)360) * _arcAngleMax, color);
}
else
{
// Calculate bounding box for the arc to be drawn
cosStart = cosDegrees(startAngle);
sinStart = sinDegrees(startAngle);
cosEnd = cosDegrees(endAngle);
sinEnd = sinDegrees(endAngle);
//Serial << cosStart << " " << sinStart << " " << cosEnd << " " << sinEnd << endl;
r = radius;
// Point 1: radius & startAngle
t = r * cosStart;
if (t < xmin) xmin = t;
if (t > xmax) xmax = t;
t = r * sinStart;
if (t < ymin) ymin = t;
if (t > ymax) ymax = t;
// Point 2: radius & endAngle
t = r * cosEnd;
if (t < xmin) xmin = t;
if (t > xmax) xmax = t;
t = r * sinEnd;
if (t < ymin) ymin = t;
if (t > ymax) ymax = t;
r = radius - thickness;
// Point 3: radius-thickness & startAngle
t = r * cosStart;
if (t < xmin) xmin = t;
if (t > xmax) xmax = t;
t = r * sinStart;
if (t < ymin) ymin = t;
if (t > ymax) ymax = t;
// Point 4: radius-thickness & endAngle
t = r * cosEnd;
if (t < xmin) xmin = t;
if (t > xmax) xmax = t;
t = r * sinEnd;
if (t < ymin) ymin = t;
if (t > ymax) ymax = t;
//Serial << xmin << " " << xmax << " " << ymin << " " << ymax << endl;
// Corrections if arc crosses X or Y axis
if ((startAngle < 90) && (endAngle > 90))
{
ymax = radius;
}
if ((startAngle < 180) && (endAngle > 180))
{
xmin = -radius;
}
if ((startAngle < 270) && (endAngle > 270))
{
ymin = -radius;
}
// Slopes for the two sides of the arc
float sslope = (float)cosStart / (float)sinStart;
float eslope = (float)cosEnd / (float)sinEnd;
//Serial << "sslope2: " << sslope << " eslope2:" << eslope << endl;
if (endAngle == 360) eslope = -1000000;
int ir2 = (radius - thickness) * (radius - thickness);
int or2 = radius * radius;
//Serial << "ymin: " << ymin << " ymax: " << ymax << endl;
fillScanline16(color);
enableCS();
for (int x = xmin; x <= xmax; x++)
{
bool y1StartFound = false, y2StartFound = false;
bool y1EndFound = false, y2EndSearching = false;
int y1s = 0, y1e = 0, y2s = 0;
for (int y = ymin; y <= ymax; y++)
{
int x2 = x * x;
int y2 = y * y;
if (
(x2 + y2 < or2 && x2 + y2 >= ir2) && (
(y > 0 && startAngle < 180 && x <= y * sslope) ||
(y < 0 && startAngle > 180 && x >= y * sslope) ||
(y < 0 && startAngle <= 180) ||
(y == 0 && startAngle <= 180 && x < 0) ||
(y == 0 && startAngle == 0 && x > 0)
) && (
(y > 0 && endAngle < 180 && x >= y * eslope) ||
(y < 0 && endAngle > 180 && x <= y * eslope) ||
(y > 0 && endAngle >= 180) ||
(y == 0 && endAngle >= 180 && x < 0) ||
(y == 0 && startAngle == 0 && x > 0)))
{
if (!y1StartFound) //start of the higher line found
{
y1StartFound = true;
y1s = y;
}
else if (y1EndFound && !y2StartFound) //start of the lower line found
{
//Serial << "Found y2 start x: " << x << " y:" << y << endl;
y2StartFound = true;
//drawPixel_cont(cx+x, cy+y, ILI9225_BLUE);
y2s = y;
y += y1e - y1s - 1; // calculate the most probable end of the lower line (in most cases the length of lower line is equal to length of upper line), in the next loop we will validate if the end of line is really there
if (y > ymax - 1) // the most probable end of line 2 is beyond ymax so line 2 must be shorter, thus continue with pixel by pixel search
{
y = y2s; // reset y and continue with pixel by pixel search
y2EndSearching = true;
}
//Serial << "Upper line length: " << (y1e - y1s) << " Setting y to " << y << endl;
}
else if (y2StartFound && !y2EndSearching)
{
// we validated that the probable end of the lower line has a pixel, continue with pixel by pixel search, in most cases next loop with confirm the end of lower line as it will not find a valid pixel
y2EndSearching = true;
}
//Serial << "x:" << x << " y:" << y << endl;
//drawPixel_cont(cx+x, cy+y, ILI9225_BLUE);
}
else
{
if (y1StartFound && !y1EndFound) //higher line end found
{
y1EndFound = true;
y1e = y - 1;
//Serial << "line: " << y1s << " - " << y1e << endl;
drawFastVLine_cont_noFill(cx + x, cy + y1s, y - y1s, color);
if (y < 0)
{
//Serial << x << " " << y << endl;
y = abs(y); // skip the empty middle
}
else
break;
}
else if (y2StartFound)
{
if (y2EndSearching)
{
//Serial << "Found final end at y: " << y << endl;
// we found the end of the lower line after pixel by pixel search
drawFastVLine_cont_noFill(cx + x, cy + y2s, y - y2s, color);
y2EndSearching = false;
break;
}
else
{
//Serial << "Expected end not found" << endl;
// the expected end of the lower line is not there so the lower line must be shorter
y = y2s; // put the y back to the lower line start and go pixel by pixel to find the end
y2EndSearching = true;
}
}
//else
//drawPixel_cont(cx+x, cy+y, ILI9225_RED);
}
//
//delay(75);
}
if (y1StartFound && !y1EndFound)
{
y1e = ymax;
//Serial << "line: " << y1s << " - " << y1e << endl;
drawFastVLine_cont_noFill(cx + x, cy + y1s, y1e - y1s + 1, color);
}
else if (y2StartFound && y2EndSearching) // we found start of lower line but we are still searching for the end
{ // which we haven't found in the loop so the last pixel in a column must be the end
drawFastVLine_cont_noFill(cx + x, cy + y2s, ymax - y2s + 1, color);
}
}
disableCS();
}
}
/*
void ILI9225_due::screenshotToConsole()
{
uint8_t lastColor[3];
uint8_t color[3];
uint32_t sameColorPixelCount = 0;
uint16_t sameColorPixelCount16 = 0;
uint32_t sameColorStartIndex = 0;
uint32_t totalImageDataLength = 0;
Serial.println();
Serial.println(F("==== PIXEL DATA START ===="));
//uint16_t x=0;
//uint16_t y=0;
beginTransaction();
setAddr_cont(0, 0, _width, _height);
writecommand_cont(ILI9225_RAMRD); // read from RAM
readdata8_cont(); // dummy read, also sets DC high
#if SPI_MODE_DMA
read_cont(color, 3);
lastColor[0] = color[0];
lastColor[1] = color[1];
lastColor[2] = color[2];
#elif SPI_MODE_NORMAL | SPI_MODE_EXTENDED
lastColor[0] = color[0] = read8_cont();
lastColor[1] = color[1] = read8_cont();
lastColor[2] = color[2] = read8_cont();
#endif
printHex8(color, 3); //write color of the first pixel
totalImageDataLength += 6;
sameColorStartIndex = 0;
for (uint32_t i = 1; i < (uint32_t)_width*(uint32_t)_height; i++)
{
#if SPI_MODE_DMA
read_cont(color, 3);
#elif SPI_MODE_NORMAL | SPI_MODE_EXTENDED
color[0] = read8_cont();
color[1] = read8_cont();
color[2] = read8_cont();
#endif
if (color[0] != lastColor[0] ||
color[1] != lastColor[1] ||
color[2] != lastColor[2])
{
sameColorPixelCount = i - sameColorStartIndex;
if (sameColorPixelCount > 65535)
{
sameColorPixelCount16 = 65535;
printHex16(&sameColorPixelCount16, 1);
printHex8(lastColor, 3);
totalImageDataLength += 10;
sameColorPixelCount16 = sameColorPixelCount - 65535;
}
else
sameColorPixelCount16 = sameColorPixelCount;
printHex16(&sameColorPixelCount16, 1);
printHex8(color, 3);
totalImageDataLength += 10;
sameColorStartIndex = i;
lastColor[0] = color[0];
lastColor[1] = color[1];
lastColor[2] = color[2];
}
}
disableCS();
endTransaction();
sameColorPixelCount = (uint32_t)_width*(uint32_t)_height - sameColorStartIndex;
if (sameColorPixelCount > 65535)
{
sameColorPixelCount16 = 65535;
printHex16(&sameColorPixelCount16, 1);