diff options
author | JF <jf@codingfield.com> | 2021-03-07 18:45:35 +0100 |
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committer | Gitea <gitea@fake.local> | 2021-03-07 18:45:35 +0100 |
commit | c5dc4c55a79e0e3393df22e77825f24b6130a0bb (patch) | |
tree | 6f81eb191aa0c749cbef9b856d43ed4546302802 /src/components/rle/RleDecoder.cpp | |
parent | ada942535718d48eec37cca4f50d678e7201dc67 (diff) | |
parent | 5845fd98ba68e12f1e57d50ed06abd7ccf47e029 (diff) |
Merge branch 'recovery-firmware' of JF/PineTime into develop
Diffstat (limited to 'src/components/rle/RleDecoder.cpp')
-rw-r--r-- | src/components/rle/RleDecoder.cpp | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/components/rle/RleDecoder.cpp b/src/components/rle/RleDecoder.cpp new file mode 100644 index 00000000..19a90fda --- /dev/null +++ b/src/components/rle/RleDecoder.cpp @@ -0,0 +1,39 @@ +#include "RleDecoder.h" + +using namespace Pinetime::Tools; + +RleDecoder::RleDecoder(const uint8_t *buffer, size_t size) : buffer{buffer}, size{size} { + +} + +RleDecoder::RleDecoder(const uint8_t *buffer, size_t size, uint16_t foregroundColor, uint16_t backgroundColor) : RleDecoder{buffer, size} { + this->foregroundColor = foregroundColor; + this->backgroundColor = backgroundColor; +} + + +void RleDecoder::DecodeNext(uint8_t *output, size_t maxBytes) { + for (;encodedBufferIndex<size; encodedBufferIndex++) { + uint8_t rl = buffer[encodedBufferIndex] - processedCount; + while (rl) { + output[bp] = color >> 8; + output[bp + 1] = color & 0xff; + bp += 2; + rl -= 1; + processedCount++; + + if (bp >= maxBytes) { + bp = 0; + y += 1; + return; + } + } + processedCount = 0; + + if (color == backgroundColor) + color = foregroundColor; + else + color = backgroundColor; + } +} + |