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LibGfx/OpenType: Support one specific type of embedded color bitmaps
This patch adds support for index format 1 and image format 17. This is enough to get Noto Color Emoji working.
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5 changed files with 181 additions and 6 deletions
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@ -35,7 +35,7 @@ class VectorFont : public RefCounted<VectorFont> {
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public:
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virtual ~VectorFont() { }
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virtual ScaledFontMetrics metrics(float x_scale, float y_scale) const = 0;
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virtual ScaledGlyphMetrics glyph_metrics(u32 glyph_id, float x_scale, float y_scale) const = 0;
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virtual ScaledGlyphMetrics glyph_metrics(u32 glyph_id, float x_scale, float y_scale, float point_width, float point_height) const = 0;
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virtual float glyphs_horizontal_kerning(u32 left_glyph_id, u32 right_glyph_id, float x_scale) const = 0;
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virtual RefPtr<Gfx::Bitmap> rasterize_glyph(u32 glyph_id, float x_scale, float y_scale, GlyphSubpixelOffset) const = 0;
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virtual u32 glyph_count() const = 0;
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