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TFT DMA in drawBMP() disabled; fix possible but complex, see comments

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This commit is contained in:
Phillip Burgess 2019-09-17 22:47:23 -07:00
parent 9cf25febb8
commit 197f09664b
2 changed files with 7 additions and 2 deletions
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7
Adafruit_ImageReader.cpp
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@ -497,7 +497,12 @@ ImageReturnCode Adafruit_ImageReader::coreBMP(
file.read(sdbuf, sizeof sdbuf); // Load from SD
if(transact) tft->startWrite(); // Start TFT SPI transact
if(destidx) { // If buffered TFT data
tft->writePixels(dest, destidx, false); // Write it
// Non-blocking writes (DMA) have been temporarily
// disabled until this can be rewritten with two
// alternating 'dest' buffers (else the nonblocking
// data out is overwritten in the dest[] write below).
//tft->writePixels(dest, destidx, false); // Write it
tft->writePixels(dest, destidx, true); // Write it
destidx = 0; // and reset dest index
}
} else { // Canvas is simpler,

2
library.properties
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@ -1,5 +1,5 @@
name=Adafruit ImageReader Library
version=2.0.1
version=2.0.2
author=Adafruit
maintainer=Adafruit <info@adafruit.com>
sentence=Companion library for Adafruit_GFX to load images from SD card.