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TFT_eSPI.cpp
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/***************************************************
Arduino TFT graphics library
This is a standalone library that contains the
hardware driver, the graphics functions and the
proportional fonts.
The larger fonts are Run Length Encoded to reduce their
size.
Created by Bodmer 2/12/16
Bodmer: Added RPi 16 bit display support
****************************************************/
#include "TFT_eSPI.h"
#include "TFT_Interface.h"
#ifdef TOUCH
#ifdef FOURWIRETOUCH
#include "Extensions/Touch_Drivers/4WiresTouch/defined.h"
#elif defined XPT2046TOUCH
#include "Extensions/Touch_Drivers/XPT2046/XPT2046.h"
#else
#error Didn't support this Touch yet.
#endif
#endif
#ifdef HASSPI
TFT_Interface _com(&SPICOM);
#else
TFT_Interface _com = TFT_Interface();
#endif
// If it is a 16bit serial display we must transfer 16 bits every time
#ifdef RPI_ILI9486_DRIVER
#define CMD_BITS (16-1)
#else
#define CMD_BITS (8-1)
#endif
// Fast block write prototype
void writeBlock(uint16_t color, uint32_t repeat);
// Byte read prototype
uint8_t readByte(void);
// GPIO parallel input/output control
void busDir(uint32_t mask, uint8_t mode);
inline void TFT_eSPI::com_begin(void) {
#if defined (SPI_HAS_TRANSACTION) && defined (SUPPORT_TRANSACTIONS) && (HASSPI)
if (locked) {
locked = false;
#ifdef KENDRYTE_K210
_com.beginTransaction(SPISettings(SPI_FREQUENCY, LSBFIRST, TFT_SPI_MODE));
#else
_com.beginTransaction(SPISettings(SPI_FREQUENCY, MSBFIRST, TFT_SPI_MODE));
#endif
CS_L;
}
CS_L;
#endif
}
inline void TFT_eSPI::com_end(void) {
#if defined (SPI_HAS_TRANSACTION) && defined (SUPPORT_TRANSACTIONS) && (HASSPI)
if (!inTransaction) {
if (!locked) {
locked = true;
CS_H;
_com.endTransaction();
}
}
#else
if (!inTransaction) {
CS_H;
}
#endif
}
inline void TFT_eSPI::com_begin_read(void) {
#if defined (SPI_HAS_TRANSACTION) && defined (SUPPORT_TRANSACTIONS) && (HASSPI)
if (locked) {
locked = false;
#ifdef KENDRYTE_K210
_com.beginTransaction(SPISettings(SPI_READ_FREQUENCY, LSBFIRST, TFT_SPI_MODE));
#else
_com.beginTransaction(SPISettings(SPI_READ_FREQUENCY, MSBFIRST, TFT_SPI_MODE));
#endif
CS_L;
}
#else
CS_L;
#endif
}
inline void TFT_eSPI::com_end_read(void) {
#if defined (SPI_HAS_TRANSACTION) && defined (SUPPORT_TRANSACTIONS) && (HASSPI)
if (!inTransaction) {
if (!locked) {
locked = true;
CS_H;
_com.endTransaction();
}
}
#else
if (!inTransaction) {
CS_H;
}
#endif
}
#if defined (TOUCH_CS) && defined (SPI_TOUCH_FREQUENCY)
inline void TFT_eSPI::com_begin_touch(void) {
CS_H; // Just in case it has been left low
#if defined (SPI_HAS_TRANSACTION) && defined (SUPPORT_TRANSACTIONS) && (HASSPI)
if (locked) {
locked = false;
#ifdef KENDRYTE_K210
_com.beginTransaction(SPISettings(SPI_READ_FREQUENCY, LSBFIRST, TFT_SPI_MODE));
#else
_com.beginTransaction(SPISettings(SPI_READ_FREQUENCY, MSBFIRST, TFT_SPI_MODE));
#endif
}
#else
//_com.setFrequency(SPI_TOUCH_FREQUENCY);
#endif
T_CS_L;
}
inline void TFT_eSPI::com_end_touch(void) {
T_CS_H;
#if defined (SPI_HAS_TRANSACTION) && defined (SUPPORT_TRANSACTIONS) && (HASSPI)
if (!inTransaction) {
if (!locked) {
locked = true;
_com.endTransaction();
}
}
#else
//_com.setFrequency(SPI_FREQUENCY);
#endif
}
#endif
/***************************************************************************************
** Function name: TFT_eSPI
** Description: Constructor , we must use hardware SPI pins
***************************************************************************************/
TFT_eSPI::TFT_eSPI(int16_t w, int16_t h) {
// The control pins are deliberately set to the inactive state (CS high) as setup()
// might call and initialise other SPI peripherals which would could cause conflicts
// if CS is floating or undefined.
#ifdef TFT_CS
digitalWrite(TFT_CS, HIGH); // Chip select high (inactive)
pinMode(TFT_CS, OUTPUT);
#endif
// Configure chip select for touchscreen controller if present
#ifdef TOUCH_CS
digitalWrite(TOUCH_CS, HIGH); // Chip select high (inactive)
pinMode(TOUCH_CS, OUTPUT);
#endif
#ifdef TFT_WR
digitalWrite(TFT_WR, HIGH); // Set write strobe high (inactive)
pinMode(TFT_WR, OUTPUT);
#endif
#ifdef TFT_DC
digitalWrite(TFT_DC, HIGH); // Data/Command high = data mode
pinMode(TFT_DC, OUTPUT);
#endif
#ifdef TFT_RST
if (TFT_RST >= 0) {
digitalWrite(TFT_RST, HIGH); // Set high, do not share pin with another SPI device
pinMode(TFT_RST, OUTPUT);
}
#endif
_init_width = _width = w; // Set by specific xxxxx_Defines.h file or by users sketch
_init_height = _height = h; // Set by specific xxxxx_Defines.h file or by users sketch
rotation = 0;
cursor_y = cursor_x = 0;
textfont = 1;
textsize = 1;
textcolor = bitmap_fg = 0xFFFF; // White
textbgcolor = bitmap_bg = 0x0000; // Black
padX = 0; // No padding
isDigits = false; // No bounding box adjustment
textwrapX = true; // Wrap text at end of line when using print stream
textwrapY = false; // Wrap text at bottom of screen when using print stream
textdatum = TL_DATUM; // Top Left text alignment is default
fontsloaded = 0;
_swapBytes = false; // Do not swap colour bytes by default
locked = true; // transaction mutex lock flags
inTransaction = false;
_booted = true;
_cp437 = true;
_utf8 = true;
addr_row = 0xFFFF;
addr_col = 0xFFFF;
_xpivot = 0;
_ypivot = 0;
cspinmask = 0;
dcpinmask = 0;
wrpinmask = 0;
sclkpinmask = 0;
#ifdef LOAD_GLCD
fontsloaded = 0x0002; // Bit 1 set
#endif
#ifdef LOAD_FONT2
fontsloaded |= 0x0004; // Bit 2 set
#endif
#ifdef LOAD_FONT4
fontsloaded |= 0x0010; // Bit 4 set
#endif
#ifdef LOAD_FONT6
fontsloaded |= 0x0040; // Bit 6 set
#endif
#ifdef LOAD_FONT7
fontsloaded |= 0x0080; // Bit 7 set
#endif
#ifdef LOAD_FONT8
fontsloaded |= 0x0100; // Bit 8 set
#endif
#ifdef LOAD_FONT8N
fontsloaded |= 0x0200; // Bit 9 set
#endif
#ifdef SMOOTH_FONT
fontsloaded |= 0x8000; // Bit 15 set
#endif
}
/***************************************************************************************
** Function name: begin
** Description: Included for backwards compatibility
***************************************************************************************/
void TFT_eSPI::begin(uint8_t tc) {
init(tc);
}
/***************************************************************************************
** Function name: init (tc is tab colour for ST7735 displays only)
** Description: Reset, then initialise the TFT display registers
***************************************************************************************/
void TFT_eSPI::init(uint8_t tc) {
if (_booted) {
_com.begin(); // This will set HMISO to input
inTransaction = false;
locked = true;
#ifdef TFT_CS
// Set to output once again in case D6 (MISO) is used for CS
digitalWrite(TFT_CS, HIGH); // Chip select high (inactive)
pinMode(TFT_CS, OUTPUT);
#endif
// Set to output once again in case D6 (MISO) is used for DC
#ifdef TFT_DC
digitalWrite(TFT_DC, HIGH); // Data/Command high = data mode
pinMode(TFT_DC, OUTPUT);
#endif
_booted = false;
com_end();
} // end of: if just _booted
// Toggle RST low to reset
com_begin();
#ifdef TFT_RST
if (TFT_RST >= 0) {
digitalWrite(TFT_RST, HIGH);
delay(5);
digitalWrite(TFT_RST, LOW);
delay(20);
digitalWrite(TFT_RST, HIGH);
} else {
writecommand(TFT_SWRST); // Software reset
}
#else
writecommand(TFT_SWRST); // Software reset
#endif
com_end();
delay(150); // Wait for reset to complete
com_begin();
// This loads the driver specific initialisation code <<<<<<<<<<<<<<<<<<<<< ADD NEW DRIVERS TO THE LIST HERE <<<<<<<<<<<<<<<<<<<<<<<
#if defined (ILI9341_DRIVER)
#include "TFT_Drivers/ILI9341_Init.h"
#elif defined (ST7735_DRIVER)
tabcolor = tc;
#include "TFT_Drivers/ST7735_Init.h"
#elif defined (ILI9163_DRIVER)
#include "TFT_Drivers/ILI9163_Init.h"
#elif defined (S6D02A1_DRIVER)
#include "TFT_Drivers/S6D02A1_Init.h"
#elif defined (RPI_ILI9486_DRIVER)
#include "TFT_Drivers/ILI9486_Init.h"
#elif defined (ILI9486_DRIVER)
#include "TFT_Drivers/ILI9486_Init.h"
#elif defined (ILI9481_DRIVER)
#include "TFT_Drivers/ILI9481_Init.h"
#elif defined (ILI9488_DRIVER)
#include "TFT_Drivers/ILI9488_Init.h"
#elif defined (HX8357D_DRIVER)
#include "TFT_Drivers/HX8357D_Init.h"
#elif defined (ST7789_DRIVER)
#include "TFT_Drivers/ST7789_Init.h"
#elif defined (R61581_DRIVER)
#include "TFT_Drivers/R61581_Init.h"
#elif defined (RM68140_DRIVER)
#include "TFT_Drivers/RM68140_Init.h"
#elif defined (ST7789_2_DRIVER)
#include "TFT_Drivers/ST7789_2_Init.h"
#endif
#ifdef TFT_INVERSION_ON
writecommand(TFT_INVON);
#endif
#ifdef TFT_INVERSION_OFF
writecommand(TFT_INVOFF);
#endif
com_end();
setRotation(rotation);
#if defined (TFT_BL) && defined (TFT_BACKLIGHT_ON)
pinMode(TFT_BL, OUTPUT);
digitalWrite(TFT_BL, TFT_BACKLIGHT_ON);
#else
#if defined (TFT_BL) && defined (M5STACK)
// Turn on the back-light LED
pinMode(TFT_BL, OUTPUT);
digitalWrite(TFT_BL, HIGH);
#endif
#endif
#ifdef TOUCH
#if defined XPT2046TOUCH
xpt.begin();
#endif
#endif
}
/***************************************************************************************
** Function name: setBacklight
** Description: set the Backlight
***************************************************************************************/
#if defined (TFT_BL)
void TFT_eSPI::setBacklight(uint32_t backlight)
{
_backlight = backlight;
analogWrite(TFT_BL, _backlight);
}
uint32_t TFT_eSPI::backlight()
{
return _backlight;
}
#endif;
/***************************************************************************************
** Function name: setRotation
** Description: rotate the screen orientation m = 0-3 or 4-7 for BMP drawing
***************************************************************************************/
void TFT_eSPI::setRotation(uint8_t m) {
com_begin();
// This loads the driver specific rotation code <<<<<<<<<<<<<<<<<<<<< ADD NEW DRIVERS TO THE LIST HERE <<<<<<<<<<<<<<<<<<<<<<<
#if defined (ILI9341_DRIVER)
#include "TFT_Drivers/ILI9341_Rotation.h"
#elif defined (ST7735_DRIVER)
#include "TFT_Drivers/ST7735_Rotation.h"
#elif defined (ILI9163_DRIVER)
#include "TFT_Drivers/ILI9163_Rotation.h"
#elif defined (S6D02A1_DRIVER)
#include "TFT_Drivers/S6D02A1_Rotation.h"
#elif defined (RPI_ILI9486_DRIVER)
#include "TFT_Drivers/ILI9486_Rotation.h"
#elif defined (ILI9486_DRIVER)
#include "TFT_Drivers/ILI9486_Rotation.h"
#elif defined (ILI9481_DRIVER)
#include "TFT_Drivers/ILI9481_Rotation.h"
#elif defined (ILI9488_DRIVER)
#include "TFT_Drivers/ILI9488_Rotation.h"
#elif defined (HX8357D_DRIVER)
#include "TFT_Drivers/HX8357D_Rotation.h"
#elif defined (ST7789_DRIVER)
#include "TFT_Drivers/ST7789_Rotation.h"
#elif defined (R61581_DRIVER)
#include "TFT_Drivers/R61581_Rotation.h"
#elif defined (RM68140_DRIVER)
#include "TFT_Drivers/RM68140_Rotation.h"
#elif defined (ST7789_2_DRIVER)
#include "TFT_Drivers/ST7789_2_Rotation.h"
#elif defined (LTDC_DRIVER)
#include "TFT_Drivers/LTDC_Rotation.h"
#endif
delayMicroseconds(10);
com_end();
addr_row = 0xFFFF;
addr_col = 0xFFFF;
}
/***************************************************************************************
** Function name: commandList, used for FLASH based lists only (e.g. ST7735)
** Description: Get initialisation commands from FLASH and send to TFT
***************************************************************************************/
void TFT_eSPI::commandList(const uint8_t* addr) {
uint8_t numCommands;
uint8_t numArgs;
uint8_t ms;
numCommands = pgm_read_byte(addr++); // Number of commands to follow
while (numCommands--) { // For each command...
writecommand(pgm_read_byte(addr++)); // Read, issue command
numArgs = pgm_read_byte(addr++); // Number of args to follow
ms = numArgs & TFT_INIT_DELAY; // If hibit set, delay follows args
numArgs &= ~TFT_INIT_DELAY; // Mask out delay bit
while (numArgs--) { // For each argument...
writedata(pgm_read_byte(addr++)); // Read, issue argument
}
if (ms) {
ms = pgm_read_byte(addr++); // Read post-command delay time (ms)
delay((ms == 255 ? 500 : ms));
}
}
}
/***************************************************************************************
** Function name: spiwrite
** Description: Write 8 bits to SPI port (legacy support only)
***************************************************************************************/
void TFT_eSPI::spiwrite(uint8_t c) {
tft_Write_8(c);
}
/***************************************************************************************
** Function name: writecommand
** Description: Send an 8 bit command to the TFT
***************************************************************************************/
void TFT_eSPI::writecommand(uint8_t c) {
_com.writeCommand(c);
}
/***************************************************************************************
** Function name: writedata
** Description: Send a 8 bit data value to the TFT
***************************************************************************************/
void TFT_eSPI::writedata(uint8_t d) {
_com.writeData(d);
}
/***************************************************************************************
** Function name: readcommand8
** Description: Read a 8 bit data value from an indexed command register
***************************************************************************************/
uint8_t TFT_eSPI::readcommand8(uint8_t cmd_function, uint8_t index) {
uint8_t reg = 0;
// for ILI9341 Interface II i.e. IM [3:0] = "1101"
com_begin_read();
index = 0x10 + (index & 0x0F);
DC_C;
writecommand(0xD9);
DC_D;
tft_Write_8(index);
CS_H; // Some displays seem to need CS to be pulsed here, or is just a delay needed?
CS_L;
DC_C;
writecommand(cmd_function);
DC_D;
reg = tft_Read_8();
com_end_read();
return reg;
}
/***************************************************************************************
** Function name: readcommand16
** Description: Read a 16 bit data value from an indexed command register
***************************************************************************************/
uint16_t TFT_eSPI::readcommand16(uint8_t cmd_function, uint8_t index) {
uint32_t reg;
reg = (readcommand8(cmd_function, index + 0) << 8);
reg |= (readcommand8(cmd_function, index + 1) << 0);
return reg;
}
/***************************************************************************************
** Function name: readcommand32
** Description: Read a 32 bit data value from an indexed command register
***************************************************************************************/
uint32_t TFT_eSPI::readcommand32(uint8_t cmd_function, uint8_t index) {
uint32_t reg;
reg = (readcommand8(cmd_function, index + 0) << 24);
reg |= (readcommand8(cmd_function, index + 1) << 16);
reg |= (readcommand8(cmd_function, index + 2) << 8);
reg |= (readcommand8(cmd_function, index + 3) << 0);
return reg;
}
/***************************************************************************************
** Function name: read pixel (for SPI Interface II i.e. IM [3:0] = "1101")
** Description: Read 565 pixel colours from a pixel
***************************************************************************************/
uint16_t TFT_eSPI::readPixel(int32_t x0, int32_t y0) {
com_begin_read();
readAddrWindow(x0, y0, 1, 1); // Sets CS low
#ifdef TFT_SDA_READ
begin_SDA_Read();
#endif
// Dummy read to throw away don't care value
tft_Read_8();
//#if !defined (ILI9488_DRIVER)
// Read the 3 RGB bytes, colour is actually only in the top 6 bits of each byte
// as the TFT stores colours as 18 bits
uint8_t r = tft_Read_8();
uint8_t g = tft_Read_8();
uint8_t b = tft_Read_8();
/*
#else
// The 6 colour bits are in MS 6 bits of each byte, but the ILI9488 needs an extra clock pulse
// so bits appear shifted right 1 bit, so mask the middle 6 bits then shift 1 place left
uint8_t r = (tft_Read_8()&0x7E)<<1;
uint8_t g = (tft_Read_8()&0x7E)<<1;
uint8_t b = (tft_Read_8()&0x7E)<<1;
#endif
*/
CS_H;
#ifdef TFT_SDA_READ
end_SDA_Read();
#endif
com_end_read();
return color565(r, g, b);
}
/***************************************************************************************
** Function name: read rectangle (for SPI Interface II i.e. IM [3:0] = "1101")
** Description: Read 565 pixel colours from a defined area
***************************************************************************************/
void TFT_eSPI::readRect(int32_t x, int32_t y, int32_t w, int32_t h, uint16_t* data) {
if ((x > _width) || (y > _height) || (w == 0) || (h == 0)) {
return;
}
com_begin_read();
readAddrWindow(x, y, w, h); // Sets CS low
#ifdef TFT_SDA_READ
begin_SDA_Read();
#endif
// Dummy read to throw away don't care value
tft_Read_8();
// Read window pixel 24 bit RGB values
uint32_t len = w * h;
while (len--) {
#if !defined (ILI9488_DRIVER)
// Read the 3 RGB bytes, colour is actually only in the top 6 bits of each byte
// as the TFT stores colours as 18 bits
uint8_t r = tft_Read_8();
uint8_t g = tft_Read_8();
uint8_t b = tft_Read_8();
#else
// The 6 colour bits are in LS 6 bits of each byte but we do not include the extra clock pulse
// so we use a trick and mask the middle 6 bits of the byte, then only shift 1 place left
uint8_t r = (tft_Read_8() & 0x7E) << 1;
uint8_t g = (tft_Read_8() & 0x7E) << 1;
uint8_t b = (tft_Read_8() & 0x7E) << 1;
#endif
// Swapped colour byte order for compatibility with pushRect()
*data++ = (r & 0xF8) | (g & 0xE0) >> 5 | (b & 0xF8) << 5 | (g & 0x1C) << 11;
}
CS_H;
#ifdef TFT_SDA_READ
end_SDA_Read();
#endif
com_end_read();
}
/***************************************************************************************
** Function name: beginSDA
** Description: Detach SPI from pin to permit software SPI
***************************************************************************************/
#ifdef TFT_SDA_READ
void TFT_eSPI::begin_SDA_Read(void) {
#ifdef TFT_SPI_OVERLAP
// Reads in overlap mode not supported
#else
_com.end();
#endif
}
#endif
/***************************************************************************************
** Function name: endSDA
** Description: Attach SPI pins after software SPI
***************************************************************************************/
#ifdef TFT_SDA_READ
void TFT_eSPI::end_SDA_Read(void) {
#ifdef TFT_SPI_OVERLAP
_com.pins(6, 7, 8, 0);
#else
_com.begin();
#endif
}
#endif
/***************************************************************************************
** Function name: push rectangle (for SPI Interface II i.e. IM [3:0] = "1101")
** Description: push 565 pixel colours into a defined area
***************************************************************************************/
void TFT_eSPI::pushRect(int32_t x, int32_t y, int32_t w, int32_t h, uint16_t* data) {
// Function deprecated, remains for backwards compatibility
// pushImage() is better as it will crop partly off-screen image blocks
pushImage(x, y, w, h, data);
}
/***************************************************************************************
** Function name: pushImage
** Description: plot 16 bit colour sprite or image onto TFT
***************************************************************************************/
void TFT_eSPI::pushImage(int32_t x, int32_t y, int32_t w, int32_t h, uint16_t* data) {
if ((x >= _width) || (y >= _height)) {
return;
}
int32_t dx = 0;
int32_t dy = 0;
int32_t dw = w;
int32_t dh = h;
if (x < 0) {
dw += x;
dx = -x;
x = 0;
}
if (y < 0) {
dh += y;
dy = -y;
y = 0;
}
if ((x + dw) > _width) {
dw = _width - x;
}
if ((y + dh) > _height) {
dh = _height - y;
}
if (dw < 1 || dh < 1) {
return;
}
com_begin();
inTransaction = true;
setWindow(x, y, x + dw - 1, y + dh - 1);
data += dx + dy * w;
while (dh--) {
pushColors(data, dw, _swapBytes);
data += w;
}
inTransaction = false;
com_end();
}
/***************************************************************************************
** Function name: pushImage
** Description: plot 16 bit sprite or image with 1 colour being transparent
***************************************************************************************/
void TFT_eSPI::pushImage(int32_t x, int32_t y, int32_t w, int32_t h, uint16_t* data, uint16_t transp) {
if ((x >= _width) || (y >= _height)) {
return;
}
int32_t dx = 0;
int32_t dy = 0;
int32_t dw = w;
int32_t dh = h;
if (x < 0) {
dw += x;
dx = -x;
x = 0;
}
if (y < 0) {
dh += y;
dy = -y;
y = 0;
}
if ((x + dw) > _width) {
dw = _width - x;
}
if ((y + dh) > _height) {
dh = _height - y;
}
if (dw < 1 || dh < 1) {
return;
}
com_begin();
inTransaction = true;
data += dx + dy * w;
int32_t xe = x + dw - 1, ye = y + dh - 1;
uint16_t lineBuf[dw];
if (!_swapBytes) {
transp = transp >> 8 | transp << 8;
}
while (dh--) {
int32_t len = dw;
uint16_t* ptr = data;
int32_t px = x;
boolean move = true;
uint16_t np = 0;
while (len--) {
if (transp != *ptr) {
if (move) {
move = false;
setWindow(px, y, xe, ye);
}
lineBuf[np] = *ptr;
np++;
} else {
move = true;
if (np) {
pushColors((uint16_t*)lineBuf, np, _swapBytes);
np = 0;
}
}
px++;
ptr++;
}
if (np) {
pushColors((uint16_t*)lineBuf, np, _swapBytes);
}
y++;
data += w;
}
inTransaction = false;
com_end();
}
/***************************************************************************************
** Function name: pushImage - for FLASH (PROGMEM) stored images
** Description: plot 16 bit image
***************************************************************************************/
void TFT_eSPI::pushImage(int32_t x, int32_t y, int32_t w, int32_t h, const uint16_t* data) {
if ((x >= _width) || (y >= _height)) {
return;
}
int32_t dx = 0;
int32_t dy = 0;
int32_t dw = w;
int32_t dh = h;
if (x < 0) {
dw += x;
dx = -x;
x = 0;
}
if (y < 0) {
dh += y;
dy = -y;
y = 0;
}
if ((x + dw) > _width) {
dw = _width - x;
}
if ((y + dh) > _height) {
dh = _height - y;
}
if (dw < 1 || dh < 1) {
return;
}
com_begin();
inTransaction = true;
data += dx + dy * w;
uint16_t buffer[64];
uint16_t* pix_buffer = buffer;
setWindow(x, y, x + dw - 1, y + dh - 1);
// Work out the number whole buffers to send
uint16_t nb = (dw * dh) / 64;
// Fill and send "nb" buffers to TFT
for (int32_t i = 0; i < nb; i++) {
for (int32_t j = 0; j < 64; j++) {
pix_buffer[j] = pgm_read_word(&data[i * 64 + j]);
}
pushColors(pix_buffer, 64, _swapBytes);
}
// Work out number of pixels not yet sent
uint16_t np = (dw * dh) % 64;
// Send any partial buffer left over
if (np) {
for (int32_t i = 0; i < np; i++) {
pix_buffer[i] = pgm_read_word(&data[nb * 64 + i]);
}
pushColors(pix_buffer, np, _swapBytes);
}
inTransaction = false;
com_end();
}
/***************************************************************************************
** Function name: pushImage - for FLASH (PROGMEM) stored images
** Description: plot 16 bit image with 1 colour being transparent
***************************************************************************************/
void TFT_eSPI::pushImage(int32_t x, int32_t y, int32_t w, int32_t h, const uint16_t* data, uint16_t transp) {
// Partitioned memory FLASH processor
if ((x >= _width) || (y >= (int32_t)_height)) {
return;
}
int32_t dx = 0;
int32_t dy = 0;
int32_t dw = w;
int32_t dh = h;
if (x < 0) {
dw += x;
dx = -x;
x = 0;
}
if (y < 0) {
dh += y;
dy = -y;
y = 0;
}
if ((x + dw) > _width) {
dw = _width - x;
}
if ((y + dh) > _height) {
dh = _height - y;
}
if (dw < 1 || dh < 1) {
return;
}
com_begin();
inTransaction = true;
data += dx + dy * w;
int32_t xe = x + dw - 1, ye = y + dh - 1;
uint16_t lineBuf[dw];
if (!_swapBytes) {
transp = transp >> 8 | transp << 8;
}
while (dh--) {
int32_t len = dw;
uint16_t* ptr = (uint16_t*)data;
int32_t px = x;