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RP2040 DMA image copy bug fix 

memcpy should be memmove since areas overlap.
This commit is contained in:
Bodmer 2021-11-04 21:44:15 +00:00
parent e23d8e083b
commit 9d33b3eac2
4 changed files with 6 additions and 4 deletions
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4
Processors/TFT_eSPI_RP2040.c
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@ -365,7 +365,7 @@ void TFT_eSPI::pushImageDMA(int32_t x, int32_t y, int32_t w, int32_t h, uint16_t
// If image is clipped, copy pixels into a contiguous block
if ( (dw != w) || (dh != h) ) {
for (int32_t yb = 0; yb < dh; yb++) {
memcpy((uint8_t*) (buffer + yb * dw), (uint8_t*) (image + dx + w * (yb + dy)), dw << 1);
memmove((uint8_t*) (buffer + yb * dw), (uint8_t*) (image + dx + w * (yb + dy)), dw << 1);
}
}
// else, if a buffer pointer has been provided copy whole image to the buffer
@ -390,6 +390,8 @@ bool TFT_eSPI::initDMA(bool ctrl_cs)
{
if (DMA_Enabled) return false;
ctrl_cs = ctrl_cs; // stop unused parameter warning
dma_tx_channel = dma_claim_unused_channel(true);
dma_tx_config = dma_channel_get_default_config(dma_tx_channel);

2
TFT_eSPI.h
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@ -16,7 +16,7 @@
#ifndef _TFT_eSPIH_
#define _TFT_eSPIH_
#define TFT_ESPI_VERSION "2.3.71"
#define TFT_ESPI_VERSION "2.3.72"
// Bit level feature flags
// Bit 0 set: viewport capability

2
library.json
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@ -1,6 +1,6 @@
{
"name": "TFT_eSPI",
"version": "2.3.71",
"version": "2.3.72",
"keywords": "Arduino, tft, ePaper, display, Pico, RP2040, STM32, ESP8266, NodeMCU, ESP32, M5Stack, ILI9341, ST7735, ILI9163, S6D02A1, ILI9481, ILI9486, ILI9488, ST7789, RM68140, SSD1351, SSD1963, ILI9225, HX8357D",
"description": "A TFT and ePaper SPI graphics library with optimisation for Raspberry Pi Pico, ESP8266, ESP32 and STM32",
"repository":

2
library.properties
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@ -1,5 +1,5 @@
name=TFT_eSPI
version=2.3.71
version=2.3.72
author=Bodmer
maintainer=Bodmer
sentence=TFT graphics library for Arduino processors with performance optimisation for RP2040, STM32, ESP8266 and ESP32