97 lines
2.9 KiB
Plaintext
97 lines
2.9 KiB
Plaintext
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/* DO NOT EDIT THIS FILE */
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/* This file is autogenerated by the text-database code generator */
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#ifndef TOUCHGFX_FONTCACHE_HPP
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#define TOUCHGFX_FONTCACHE_HPP
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#include <touchgfx/Font.hpp>
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#include <touchgfx/TypedText.hpp>
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#include <fonts/ApplicationFontProvider.hpp>
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namespace touchgfx
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{
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class CachedFont;
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class FontDataReader
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{
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public:
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virtual ~FontDataReader()
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{
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}
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virtual void open() = 0;
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virtual void close() = 0;
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virtual void setPosition(uint32_t position) = 0;
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virtual void readData(void* out, uint32_t numberOfBytes) = 0;
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};
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class FontCache
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{
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public:
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FontCache();
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void setReader(FontDataReader* reader);
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void clear(bool keepGsubOrContextTable = false);
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void setMemory(uint8_t* memory, uint32_t size);
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void initializeCachedFont(TypedText t, CachedFont* font, bool loadGsubOrContextTable = false);
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bool cacheString(TypedText t, const Unicode::UnicodeChar* string);
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bool cacheLigatures(CachedFont* font, TypedText t, const Unicode::UnicodeChar* string);
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const GlyphNode* getGlyph(Unicode::UnicodeChar unicode, FontId font) const;
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uint32_t getMemoryUsage()
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{
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return memorySize - (gsubStart - top);
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}
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void open();
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void close();
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static inline const uint8_t* getPixelData(const GlyphNode* glyph)
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{
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return ((const uint8_t*)glyph) + SizeGlyphNode + 4;
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}
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static inline bool isCached(const GlyphNode* g)
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{
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return g->dataOffset == 0xFFFFFFFF;
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}
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private:
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static const uint32_t SizeGlyphNode = 16;
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bool contains(Unicode::UnicodeChar unicode, FontId font) const;
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void insert(Unicode::UnicodeChar unicode, FontId font, uint32_t bpp, bool& outOfMemory);
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uint8_t* copyGlyph(uint8_t* top, Unicode::UnicodeChar unicode, FontId font, uint32_t bpp, bool& outOfMemory);
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void cacheData(uint32_t bpp, GlyphNode* first);
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bool cacheSortedString(TypedText t);
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bool createSortedString(const Unicode::UnicodeChar* string);
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bool createSortedLigatures(CachedFont* font, TypedText t, const Unicode::UnicodeChar* string, ...);
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bool sortSortedString(int n);
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void setPosition(uint32_t position);
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void readData(void* out, uint32_t numberOfBytes);
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struct
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{
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uint8_t* first; // First GlyphNode, glyph in cache;
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uint8_t* last; // Last GlyphNode, glyph in cache;
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} fontTable[MAX(TypographyFontIndex::NUMBER_OF_FONTS, 1)];
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uint32_t memorySize;
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uint8_t* memory; // Start of memory
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uint8_t* top; // First unused byte
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uint8_t* gsubStart; // First address of GSUB tables, allocated in the end of the cache
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FontDataReader* reader;
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Unicode::UnicodeChar* sortedString;
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// Must be bigger than BinaryFontData
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static const uint32_t MAX_BUFFER_SIZE = 64;
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char buffer[MAX_BUFFER_SIZE];
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uint32_t glyphDataOffset;
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uint16_t numGlyphs;
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uint16_t currentFileGlyphNumber;
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GlyphNode currentFileGlyphNode;
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};
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} // namespace touchgfx
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#endif // TOUCHGFX_FONTCACHE_HPP
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