Move font renderer in a separate folder as a library

2020-06-04 18:52:01 +02:00
parent 2171ea17fb
commit c5575de058
11 changed files with 27 additions and 14 deletions
@@ -0,0 +1,57 @@
+#ifndef FONT_RENDERER_H
+#define FONT_RENDERER_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Mirrors stbtt_bakedchar.
+typedef struct {
+  unsigned short x0, y0, x1, y1;
+  float xoff, yoff, xadvance;
+} GlyphBitmapInfo;
+
+struct FontRendererImpl;
+typedef struct FontRendererImpl FontRenderer;
+
+enum {
+    FONT_RENDERER_HINTING  = 1 << 0,
+    FONT_RENDERER_KERNING  = 1 << 1,
+};
+
+typedef struct {
+    uint8_t r, g, b;
+} FontRendererColor;
+
+FontRenderer *  FontRendererNew(unsigned int flags, float gamma);
+
+void            FontRendererFree(FontRenderer *);
+
+int             FontRendererLoadFont(FontRenderer *, const char *filename);
+
+int             FontRendererGetFontHeight(FontRenderer *, float size);
+
+int             FontRendererBakeFontBitmap(FontRenderer *, int font_height,
+                    void *pixels, int pixels_width, int pixels_height,
+                    int first_char, int num_chars, GlyphBitmapInfo *glyph_info,
+                    int subpixel_scale);
+
+void            FontRendererBlendGamma(FontRenderer *,
+                    uint8_t *dst, int dst_stride,
+                    uint8_t *src, int src_stride,
+                    int region_width, int region_height,
+                    FontRendererColor color);
+
+void            FontRendererBlendGammaSubpixel(FontRenderer *,
+                    uint8_t *dst, int dst_stride,
+                    uint8_t *src, int src_stride,
+                    int region_width, int region_height,
+                    FontRendererColor color);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif