96 lines
3.4 KiB
C
96 lines
3.4 KiB
C
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#ifndef TEXT_FONT_H
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#define TEXT_FONT_H
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// The maximum number of text fonts.
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#define TEXT_FONT_MAX (10)
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// The maximum number of font managers.
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#define FONT_MANAGER_MAX (10)
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typedef void FontManagerSetCurrentFontProc(int font);
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typedef void FontManagerDrawTextProc(unsigned char* buffer, const char* string, int length, int pitch, int color);
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typedef int FontManagerGetLineHeightProc();
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typedef int FontManagerGetStringWidthProc(const char* string);
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typedef int FontManagerGetCharacterWidthProc(int ch);
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typedef int FontManagerGetMonospacedStringWidthProc(const char* string);
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typedef int FontManagerGetLetterSpacingProc();
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typedef int FontManagerGetBufferSizeProc(const char* string);
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typedef int FontManagerGetMonospacedCharacterWidth();
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typedef struct FontManager {
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int minFont;
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int maxFont;
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FontManagerSetCurrentFontProc* setCurrentProc;
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FontManagerDrawTextProc* drawTextProc;
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FontManagerGetLineHeightProc* getLineHeightProc;
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FontManagerGetStringWidthProc* getStringWidthProc;
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FontManagerGetCharacterWidthProc* getCharacterWidthProc;
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FontManagerGetMonospacedStringWidthProc* getMonospacedStringWidthProc;
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FontManagerGetLetterSpacingProc* getLetterSpacingProc;
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FontManagerGetBufferSizeProc* getBufferSizeProc;
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FontManagerGetMonospacedCharacterWidth* getMonospacedCharacterWidthProc;
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} FontManager;
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static_assert(sizeof(FontManager) == 44, "wrong size");
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typedef struct TextFontGlyph {
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// The width of the glyph in pixels.
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int width;
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// Data offset into [TextFont.data].
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int dataOffset;
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} TextFontGlyph;
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typedef struct TextFontDescriptor {
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// The number of glyphs in the font.
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int glyphCount;
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// The height of the font.
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int lineHeight;
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// Horizontal spacing between characters in pixels.
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int letterSpacing;
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TextFontGlyph* glyphs;
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unsigned char* data;
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} TextFontDescriptor;
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#define FONT_SHADOW (0x10000)
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#define FONT_UNDERLINE (0x20000)
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#define FONT_MONO (0x40000)
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extern FontManager gTextFontManager;
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extern int gCurrentFont;
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extern int gFontManagersCount;
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extern FontManagerDrawTextProc* fontDrawText;
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extern FontManagerGetLineHeightProc* fontGetLineHeight;
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extern FontManagerGetStringWidthProc* fontGetStringWidth;
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extern FontManagerGetCharacterWidthProc* fontGetCharacterWidth;
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extern FontManagerGetMonospacedStringWidthProc* fontGetMonospacedStringWidth;
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extern FontManagerGetLetterSpacingProc* fontGetLetterSpacing;
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extern FontManagerGetBufferSizeProc* fontGetBufferSize;
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extern FontManagerGetMonospacedCharacterWidth* fontGetMonospacedCharacterWidth;
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extern TextFontDescriptor gTextFontDescriptors[TEXT_FONT_MAX];
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extern FontManager gFontManagers[FONT_MANAGER_MAX];
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extern TextFontDescriptor* gCurrentTextFontDescriptor;
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int textFontsInit();
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void textFontsExit();
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int textFontLoad(int font);
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int fontManagerAdd(FontManager* fontManager);
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void textFontSetCurrentImpl(int font);
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int fontGetCurrent();
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void fontSetCurrent(int font);
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bool fontManagerFind(int font, FontManager** fontManagerPtr);
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void textFontDrawImpl(unsigned char* buf, const char* string, int length, int pitch, int color);
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int textFontGetLineHeightImpl();
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int textFontGeStringWidthImpl(const char* string);
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int textFontGetCharacterWidthImpl(int ch);
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int textFontGetMonospacedStringWidthImpl(const char* string);
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int textFontGetLetterSpacingImpl();
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int textFontGetBufferSizeImpl(const char* string);
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int textFontGetMonospacedCharacterWidthImpl();
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#endif /* TEXT_FONT_H */
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