Bodmer/TFT_eSPI
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Allow partially of screen RLE fonts

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Bodmer
2020-06-11 22:34:22 +01:00
parent fb86ae4d1b
commit 284f52b009
4 changed files with 50 additions and 16 deletions
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60
TFT_eSPI.cpp
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@@ -3578,21 +3578,55 @@ int16_t TFT_eSPI::drawChar(uint16_t uniCode, int32_t x, int32_t y, uint8_t font)
} }
} }
} }
else { // Text colour != background && textsize = 1 else {
// so use faster drawing of characters and background using block write // Text colour != background && textsize = 1 and character is within screen area
setWindow(x, y, x + width - 1, y + height - 1); // so use faster drawing of characters and background using block write
if ((x >= 0) && (x + width <= _width) && (y >= 0) && (y + height <= _height))
{
setWindow(x, y, x + width - 1, y + height - 1);
// Maximum font size is equivalent to 180x180 pixels in area // Maximum font size is equivalent to 180x180 pixels in area
while (w > 0) { while (w > 0) {
line = pgm_read_byte((uint8_t *)flash_address++); // 8 bytes smaller when incrementing here line = pgm_read_byte((uint8_t *)flash_address++); // 8 bytes smaller when incrementing here
if (line & 0x80) { if (line & 0x80) {
line &= 0x7F; line &= 0x7F;
line++; w -= line; line++; w -= line;
pushBlock(textcolor,line); pushBlock(textcolor,line);
}
else {
line++; w -= line;
pushBlock(textbgcolor,line);
}
} }
else { }
line++; w -= line; else
pushBlock(textbgcolor,line); {
int32_t px = x, py = y; // To hold character block start and end column and row values
int32_t pc = 0; // Pixel count
int32_t pl = 0; // Pixel line length
uint16_t pcol = 0; // Pixel color
while (pc < w) {
line = pgm_read_byte((uint8_t *)flash_address);
flash_address++;
if (line & 0x80) { pcol = textcolor; line &= 0x7F; }
else pcol = textbgcolor;
line++;
px = x + pc % width;
py = y + pc / width;
pl = 0;
pc += line;
while (line--) { // In this case the while(line--) is faster
pl++;
if ((px+pl) >= (x + width)) {
drawFastHLine(px, py, pl, pcol);
pl = 0;
px = x;
py ++;
}
}
if (pl)drawFastHLine(px, py, pl, pcol);
} }
} }
} }

2
TFT_eSPI.h
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@@ -16,7 +16,7 @@
#ifndef _TFT_eSPIH_ #ifndef _TFT_eSPIH_
#define _TFT_eSPIH_ #define _TFT_eSPIH_
#define TFT_ESPI_VERSION "2.2.10" #define TFT_ESPI_VERSION "2.2.11"
/*************************************************************************************** /***************************************************************************************
** Section 1: Load required header files ** Section 1: Load required header files

2
library.json
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@@ -1,6 +1,6 @@
{ {
"name": "TFT_eSPI", "name": "TFT_eSPI",
"version": "2.2.10", "version": "2.2.11",
"keywords": "Arduino, tft, ePaper, display, STM32, ESP8266, NodeMCU, ESP32, M5Stack, ILI9341, ST7735, ILI9163, S6D02A1, ILI9486, ST7789, RM68140", "keywords": "Arduino, tft, ePaper, display, STM32, ESP8266, NodeMCU, ESP32, M5Stack, ILI9341, ST7735, ILI9163, S6D02A1, ILI9486, ST7789, RM68140",
"description": "A TFT and ePaper SPI graphics library with optimisation for ESP8266, ESP32 and STM32", "description": "A TFT and ePaper SPI graphics library with optimisation for ESP8266, ESP32 and STM32",
"repository": "repository":

2
library.properties
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@@ -1,5 +1,5 @@
name=TFT_eSPI name=TFT_eSPI
version=2.2.10 version=2.2.11
author=Bodmer author=Bodmer
maintainer=Bodmer maintainer=Bodmer
sentence=TFT graphics library for Arduino processors with performance optimisation for STM32, ESP8266 and ESP32 sentence=TFT graphics library for Arduino processors with performance optimisation for STM32, ESP8266 and ESP32