ecb5b1b4e5
## Summary * Remove miniz and move completely to uzlib * Move uzlib interfacing to InflateReader to better modularise inflation code --- ### AI Usage While CrossPoint doesn't have restrictions on AI tools in contributing, please be transparent about their usage as it helps set the right context for reviewers. Did you use AI tools to help write this code? Yes, Claude helped with the extraction and refactor
41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
#pragma once
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#include <InflateReader.h>
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#include "EpdFontData.h"
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class FontDecompressor {
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public:
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bool init();
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void deinit();
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// Returns pointer to decompressed bitmap data for the given glyph.
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// Valid until LRU eviction (safe for the duration of one glyph render).
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const uint8_t* getBitmap(const EpdFontData* fontData, const EpdGlyph* glyph, uint16_t glyphIndex);
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// Evict all cached decompressed groups (call between pages for within-page-only caching).
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void clearCache();
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private:
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static constexpr uint8_t CACHE_SLOTS = 4;
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struct CacheEntry {
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const EpdFontData* font = nullptr;
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uint16_t groupIndex = 0;
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uint8_t* data = nullptr;
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uint32_t dataSize = 0;
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uint32_t lastUsed = 0;
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bool valid = false;
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};
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InflateReader inflateReader;
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CacheEntry cache[CACHE_SLOTS] = {};
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uint32_t accessCounter = 0;
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void freeAllEntries();
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uint16_t getGroupIndex(const EpdFontData* fontData, uint16_t glyphIndex);
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CacheEntry* findInCache(const EpdFontData* fontData, uint16_t groupIndex);
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CacheEntry* findEvictionCandidate();
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bool decompressGroup(const EpdFontData* fontData, uint16_t groupIndex, CacheEntry* entry);
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};
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