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LibGfx/OpenType: Support one specific type of embedded color bitmaps

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This patch adds support for index format 1 and image format 17.
This is enough to get Noto Color Emoji working.
This commit is contained in:
Andreas Kling 2023-03-04 20:52:59 +01:00
parent e8cc1a4373
commit 924d23353e
5 changed files with 181 additions and 6 deletions
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2
Userland/Libraries/LibGfx/Font/ScaledFont.h
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@ -29,7 +29,7 @@ public:
ScaledFont(NonnullRefPtr<VectorFont>, float point_width, float point_height, unsigned dpi_x = DEFAULT_DPI, unsigned dpi_y = DEFAULT_DPI);
u32 glyph_id_for_code_point(u32 code_point) const { return m_font->glyph_id_for_code_point(code_point); }
ScaledFontMetrics metrics() const { return m_font->metrics(m_x_scale, m_y_scale); }
ScaledGlyphMetrics glyph_metrics(u32 glyph_id) const { return m_font->glyph_metrics(glyph_id, m_x_scale, m_y_scale); }
ScaledGlyphMetrics glyph_metrics(u32 glyph_id) const { return m_font->glyph_metrics(glyph_id, m_x_scale, m_y_scale, m_point_width, m_point_height); }
RefPtr<Gfx::Bitmap> rasterize_glyph(u32 glyph_id, GlyphSubpixelOffset) const;
// ^Gfx::Font