61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
// this file is designed to be platform-agnostic
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#pragma once
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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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// metrics are 26.6 fixed point
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struct glyph_metrics {
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int32_t width;
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int32_t height;
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int32_t horiBearingX;
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int32_t horiBearingY;
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int32_t horiAdvance;
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} __attribute__ ((packed));
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static_assert((sizeof (struct glyph_metrics)) == ((sizeof (int32_t)) * 5));
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struct glyph_texture {
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uint16_t x;
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uint16_t y;
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uint16_t width;
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uint16_t height;
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} __attribute__ ((packed));
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static_assert((sizeof (struct glyph_texture)) == ((sizeof (uint16_t)) * 4));
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struct glyph_bitmap {
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int32_t left;
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int32_t top;
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} __attribute__ ((packed));
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static_assert((sizeof (struct glyph_bitmap)) == ((sizeof (uint32_t)) * 2));
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struct glyph {
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struct glyph_texture texture;
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struct glyph_metrics metrics;
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struct glyph_bitmap bitmap;
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} __attribute__ ((packed));
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static_assert((sizeof (struct glyph)) == ((sizeof (struct glyph_texture)) + (sizeof (struct glyph_metrics)) + (sizeof (struct glyph_bitmap))));
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struct font {
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uint32_t first_char_code;
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uint32_t last_char_code;
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struct face_metrics {
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int32_t height; // 26.6 fixed point
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int32_t max_advance; // 26.6 fixed point
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} face_metrics;
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uint32_t glyph_count;
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uint16_t texture_width;
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uint16_t texture_height;
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} __attribute__ ((packed));
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static_assert((sizeof (struct font)) == ((sizeof (uint32_t)) * 6));
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#ifdef __cplusplus
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}
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#endif
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