62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
#ifndef FONT_RENDERER_H
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#define FONT_RENDERER_H
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Mirrors stbtt_bakedchar.
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typedef struct {
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unsigned short x0, y0, x1, y1;
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float xoff, yoff, xadvance;
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#ifdef FONT_RENDERER_DEBUG
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int ybaseline;
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#endif
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} GlyphBitmapInfo;
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struct FontRendererImpl;
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typedef struct FontRendererImpl FontRenderer;
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enum {
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FONT_RENDERER_HINTING = 1 << 0,
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FONT_RENDERER_KERNING = 1 << 1,
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FONT_RENDERER_SUBPIXEL = 1 << 2,
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};
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typedef struct {
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uint8_t r, g, b;
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} FontRendererColor;
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FontRenderer * FontRendererNew(unsigned int flags, float gamma);
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void FontRendererFree(FontRenderer *);
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int FontRendererLoadFont(FontRenderer *, const char *filename);
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int FontRendererGetFontHeight(FontRenderer *, float size);
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int FontRendererBakeFontBitmap(FontRenderer *, int font_height,
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void *pixels, int pixels_width, int pixels_height,
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int first_char, int num_chars, GlyphBitmapInfo *glyph_info,
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int subpixel_scale);
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void FontRendererBlendGamma(FontRenderer *,
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uint8_t *dst, int dst_stride,
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uint8_t *src, int src_stride,
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int region_width, int region_height,
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FontRendererColor color);
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void FontRendererBlendGammaSubpixel(FontRenderer *,
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uint8_t *dst, int dst_stride,
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uint8_t *src, int src_stride,
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int region_width, int region_height,
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FontRendererColor color);
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#ifdef __cplusplus
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}
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#endif
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#endif
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