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Add SDF HintingMode #1964

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Add SDF HintingMode #1964

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0abff32
Add SDF HintingMode
Labrium Sep 1, 2023
fee3bf1
Fix build errors
Labrium Sep 2, 2023
25c2a0e
Small tweak
Labrium Sep 2, 2023
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1 change: 1 addition & 0 deletions src/modules/font/TrueTypeRasterizer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,7 @@ StringMap<TrueTypeRasterizer::Hinting, TrueTypeRasterizer::HINTING_MAX_ENUM>::En
{"light", HINTING_LIGHT},
{"mono", HINTING_MONO},
{"none", HINTING_NONE},
{"sdf", HINTING_SDF},
};

StringMap<TrueTypeRasterizer::Hinting, TrueTypeRasterizer::HINTING_MAX_ENUM> TrueTypeRasterizer::hintings(TrueTypeRasterizer::hintingEntries, sizeof(TrueTypeRasterizer::hintingEntries));
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1 change: 1 addition & 0 deletions src/modules/font/TrueTypeRasterizer.h
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Expand Up @@ -41,6 +41,7 @@ class TrueTypeRasterizer : public Rasterizer
HINTING_LIGHT,
HINTING_MONO,
HINTING_NONE,
HINTING_SDF,
HINTING_MAX_ENUM
};

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8 changes: 4 additions & 4 deletions src/modules/font/freetype/TrueTypeRasterizer.cpp
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Expand Up @@ -97,15 +97,14 @@ GlyphData *TrueTypeRasterizer::getGlyphData(uint32 glyph) const
FT_Render_Mode rendermode = FT_RENDER_MODE_NORMAL;
if (hinting == HINTING_MONO)
rendermode = FT_RENDER_MODE_MONO;
else if (hinting == HINTING_SDF)
rendermode = FT_RENDER_MODE_SDF;

err = FT_Glyph_To_Bitmap(&ftglyph, rendermode, 0, 1);

if (err != FT_Err_Ok)
throw love::Exception("TrueType Font glyph error: FT_Glyph_To_Bitmap failed (0x%x)", err);

FT_BitmapGlyph bitmap_glyph = (FT_BitmapGlyph) ftglyph;
FT_Bitmap &bitmap = bitmap_glyph->bitmap; //just to make things easier

FT_Bitmap &bitmap = bitmap_glyph->bitmap;//just to make things easier
// Get metrics
glyphMetrics.bearingX = bitmap_glyph->left;
glyphMetrics.bearingY = bitmap_glyph->top;
Expand Down Expand Up @@ -206,6 +205,7 @@ FT_UInt TrueTypeRasterizer::hintingToLoadOption(Hinting hint)
return FT_LOAD_TARGET_LIGHT;
case HINTING_MONO:
return FT_LOAD_TARGET_MONO;
case HINTING_SDF:
case HINTING_NONE:
return FT_LOAD_NO_HINTING;
}
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