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-rwxr-xr-xsrc/core/SkDistanceFieldGen.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/core/SkDistanceFieldGen.cpp b/src/core/SkDistanceFieldGen.cpp
index 147aefad79..f1ebfa558a 100755
--- a/src/core/SkDistanceFieldGen.cpp
+++ b/src/core/SkDistanceFieldGen.cpp
@@ -107,6 +107,9 @@ static void init_glyph_data(DFData* data, unsigned char* edges, const unsigned c
// computes the distance to an edge given an edge normal vector and a pixel's alpha value
// assumes that direction has been pre-normalized
static float edge_distance(const SkPoint& direction, float alpha) {
+#if 1 // formula (1)
+ return 0.5f - alpha;
+#else // formula (4)
float dx = direction.fX;
float dy = direction.fY;
float distance;
@@ -143,6 +146,7 @@ static float edge_distance(const SkPoint& direction, float alpha) {
}
return distance;
+#endif
}
static void init_distances(DFData* data, unsigned char* edges, int width, int height) {