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#pragma once
#include <cstdint>
#include <cstddef>
namespace Pinetime {
namespace Tools {
/* 1-bit RLE decoder. Provide the encoded buffer to the constructor and then call DecodeNext() by
* specifying the output (decoded) buffer and the maximum number of bytes this buffer can handle.
*
* Code from https://github.com/daniel-thompson/wasp-bootloader by Daniel Thompson released under the MIT license.
*/
class RleDecoder {
public:
RleDecoder(const uint8_t* buffer, size_t size);
RleDecoder(const uint8_t* buffer, size_t size, uint16_t foregroundColor, uint16_t backgroundColor);
void DecodeNext(uint8_t* output, size_t maxBytes);
private:
const uint8_t* buffer;
size_t size;
int encodedBufferIndex = 0;
int y = 0;
uint16_t bp = 0;
uint16_t foregroundColor = 0xffff;
uint16_t backgroundColor = 0;
uint16_t color = backgroundColor;
int processedCount = 0;
};
}
}
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