Bodmer/TFT_eSPI
1
0
Fork 1
mirror of https://github.com/Bodmer/TFT_eSPI.git synced 2025-08-09 23:54:43 +02:00
Code Issues Packages Projects Releases Wiki Activity

Improve RLE font rendering

Browse Source 
See #766
This commit is contained in:
Bodmer
2020-10-02 22:00:03 +01:00
parent ef93dbe687
commit 22ca8193c5
4 changed files with 19 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
TFT_eSPI.cpp
View File

@@ -3570,8 +3570,7 @@ int16_t TFT_eSPI::drawChar(uint16_t uniCode, int32_t x, int32_t y, uint8_t font)
inTransaction = true;
w *= height; // Now w is total number of pixels in the character
if ((textsize != 1) || (textcolor == textbgcolor)) {
if (textcolor != textbgcolor) fillRect(x, pY, width * textsize, textsize * height, textbgcolor);
if (textcolor == textbgcolor) {
int32_t px = 0, py = pY; // To hold character block start and end column and row values
int32_t pc = 0; // Pixel count
uint8_t np = textsize * textsize; // Number of pixels in a drawn pixel
@@ -3618,9 +3617,9 @@ int16_t TFT_eSPI::drawChar(uint16_t uniCode, int32_t x, int32_t y, uint8_t font)
}
}
else {
// Text colour != background && textsize = 1 and character is within screen area
// Text colour != background and textsize = 1 and character is within screen area
// so use faster drawing of characters and background using block write
if ((x >= 0) && (x + width <= _width) && (y >= 0) && (y + height <= _height))
if ((textsize == 1) && (x >= 0) && (x + width <= _width) && (y >= 0) && (y + height <= _height))
{
setWindow(x, y, x + width - 1, y + height - 1);
@@ -3640,7 +3639,8 @@ int16_t TFT_eSPI::drawChar(uint16_t uniCode, int32_t x, int32_t y, uint8_t font)
}
else
{
int32_t px = x, py = y; // To hold character block start and end column and row values
int32_t px = 0, py = 0; // To hold character pixel coords
int32_t tx = 0, ty = 0; // To hold character TFT pixel coords
int32_t pc = 0; // Pixel count
int32_t pl = 0; // Pixel line length
uint16_t pcol = 0; // Pixel color
@@ -3651,21 +3651,25 @@ int16_t TFT_eSPI::drawChar(uint16_t uniCode, int32_t x, int32_t y, uint8_t font)
if (line & 0x80) { pcol = textcolor; line &= 0x7F; }
else pcol = textbgcolor;
line++;
px = x + pc % width;
py = y + pc / width;
px = pc % width;
tx = x + textsize * px;
py = pc / width;
ty = y + textsize * py;
pl = 0;
pc += line;
while (line--) { // In this case the while(line--) is faster
while (line--) {
pl++;
if ((px+pl) >= (x + width)) {
drawFastHLine(px, py, pl, pcol);
if ((px+pl) >= width) {
fillRect(tx, ty, pl * textsize, textsize, pcol);
pl = 0;
px = x;
px = 0;
tx = x;
py ++;
ty += textsize;
}
}
if (pl)drawFastHLine(px, py, pl, pcol);
if (pl) fillRect(tx, ty, pl * textsize, textsize, pcol);
}
}
}

2
TFT_eSPI.h
View File

@@ -16,7 +16,7 @@
#ifndef _TFT_eSPIH_
#define _TFT_eSPIH_
#define TFT_ESPI_VERSION "2.2.22"
#define TFT_ESPI_VERSION "2.2.23"
/***************************************************************************************
** Section 1: Load required header files

2
library.json
View File

@@ -1,6 +1,6 @@
{
"name": "TFT_eSPI",
"version": "2.2.22",
"version": "2.2.23",
"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",
"repository":

2
library.properties
View File

@@ -1,5 +1,5 @@
name=TFT_eSPI
version=2.2.22
version=2.2.23
author=Bodmer
maintainer=Bodmer
sentence=TFT graphics library for Arduino processors with performance optimisation for STM32, ESP8266 and ESP32