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fix png part

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This commit is contained in:
Totoo
2025-05-22 18:23:35 +02:00
committed by GitHub
parent a1d7cf2b86
commit c80cae3638
2 changed files with 3 additions and 2 deletions
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3
firmware/common/png_writer.cpp
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@@ -80,7 +80,8 @@ Optional<File::Error> PNGWriter::create(
png_ihdr_dyn[14] = (height >> 8) & 0xFF;
png_ihdr_dyn[15] = height & 0xFF;
crc.reset();
crc.process_bytes(png_ihdr_dyn.data(), 25);
crc.process_bytes(&png_ihdr_dyn[4], 4); // Process chunk type "IHDR"
crc.process_bytes(&png_ihdr_dyn[8], 13); // Process chunk data
uint32_t crci = crc.checksum();
png_ihdr_dyn[21] = (crci >> 24) & 0xFF;