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-rw-r--r--thirdparty/harfbuzz/src/OT/glyf/GlyphHeader.hh50
1 files changed, 50 insertions, 0 deletions
diff --git a/thirdparty/harfbuzz/src/OT/glyf/GlyphHeader.hh b/thirdparty/harfbuzz/src/OT/glyf/GlyphHeader.hh
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index 0000000000..e4a9168b79
--- /dev/null
+++ b/thirdparty/harfbuzz/src/OT/glyf/GlyphHeader.hh
@@ -0,0 +1,50 @@
+#ifndef OT_GLYF_GLYPHHEADER_HH
+#define OT_GLYF_GLYPHHEADER_HH
+
+
+#include "../../hb-open-type.hh"
+
+
+namespace OT {
+namespace glyf_impl {
+
+
+struct GlyphHeader
+{
+ bool has_data () const { return numberOfContours; }
+
+ template <typename accelerator_t>
+ bool get_extents_without_var_scaled (hb_font_t *font, const accelerator_t &glyf_accelerator,
+ hb_codepoint_t gid, hb_glyph_extents_t *extents) const
+ {
+ /* Undocumented rasterizer behavior: shift glyph to the left by (lsb - xMin), i.e., xMin = lsb */
+ /* extents->x_bearing = hb_min (glyph_header.xMin, glyph_header.xMax); */
+ int lsb = hb_min (xMin, xMax);
+ (void) glyf_accelerator.hmtx->get_leading_bearing_without_var_unscaled (gid, &lsb);
+ extents->x_bearing = font->em_scale_x (lsb);
+ extents->y_bearing = font->em_scale_y (hb_max (yMin, yMax));
+ extents->width = font->em_scale_x (hb_max (xMin, xMax) - hb_min (xMin, xMax));
+ extents->height = font->em_scale_y (hb_min (yMin, yMax) - hb_max (yMin, yMax));
+
+ return true;
+ }
+
+ HBINT16 numberOfContours;
+ /* If the number of contours is
+ * greater than or equal to zero,
+ * this is a simple glyph; if negative,
+ * this is a composite glyph. */
+ FWORD xMin; /* Minimum x for coordinate data. */
+ FWORD yMin; /* Minimum y for coordinate data. */
+ FWORD xMax; /* Maximum x for coordinate data. */
+ FWORD yMax; /* Maximum y for coordinate data. */
+ public:
+ DEFINE_SIZE_STATIC (10);
+};
+
+
+} /* namespace glyf_impl */
+} /* namespace OT */
+
+
+#endif /* OT_GLYF_GLYPHHEADER_HH */