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Bring back simple grayscale rendering option

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This commit is contained in:
Francesco Abbate
2020-06-11 23:11:40 +02:00
parent 00c3983da6
commit 93a36617f9
3 changed files with 70 additions and 110 deletions
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lib/font_renderer/font_renderer.h
+6 -22
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@@ -18,9 +18,9 @@ struct FR_Impl;
typedef struct FR_Impl FontRenderer;
enum {
FONT_RENDERER_HINTING = 1 << 0,
FONT_RENDERER_KERNING = 1 << 1,
FONT_RENDERER_SUBPIXEL = 1 << 2,
FR_HINTING = 1 << 0,
FR_KERNING = 1 << 2,
FR_SUBPIXEL = 1 << 3,
};
typedef struct {
@@ -32,35 +32,19 @@ typedef struct {
} FR_Clip_Area;
FontRenderer * FR_New(unsigned int flags, float gamma);
void FR_Free(FontRenderer *);
FR_Bitmap* FR_Bitmap_New(FontRenderer *, int width, int height);
int FR_Load_Font(FontRenderer *, const char *filename);
int FR_Get_Font_Height(FontRenderer *, float size);
int FR_Bake_Font_Bitmap(FontRenderer *, int font_height,
FR_Bitmap *image,
int first_char, int num_chars, FR_Bitmap_Glyph_Metrics *glyph_info,
int subpixel_scale);
#if 0
// FIXME: this function needs to be updated to match BlendGammaSubpixel.
void FR_Blend_Gamma(FontRenderer *,
uint8_t *dst, int dst_stride,
uint8_t *src, int src_stride,
int region_width, int region_height,
FR_Color color);
#endif
void FR_Blend_Gamma_Subpixel(FontRenderer *font_renderer,
int first_char, int num_chars, FR_Bitmap_Glyph_Metrics *glyph_info);
void FR_Blend_Glyph(FontRenderer *font_renderer,
FR_Clip_Area *clip, int x, int y,
uint8_t *dst, int dst_width,
const FR_Bitmap *glyphs_bitmap,
const FR_Bitmap_Glyph_Metrics *glyph, FR_Color color);
FR_Bitmap* FR_Bitmap_New(int width, int height, int subpixel_scale);
void FR_Bitmap_Free(FR_Bitmap *image);
#ifdef __cplusplus