diff options
Diffstat (limited to 'java/src')
| -rw-r--r-- | java/src/com/android/inputmethod/keyboard/internal/GestureStroke.java | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/java/src/com/android/inputmethod/keyboard/internal/GestureStroke.java b/java/src/com/android/inputmethod/keyboard/internal/GestureStroke.java index 778e8e5ef..0fec64582 100644 --- a/java/src/com/android/inputmethod/keyboard/internal/GestureStroke.java +++ b/java/src/com/android/inputmethod/keyboard/internal/GestureStroke.java @@ -142,20 +142,21 @@ public class GestureStroke { mLastIncrementalBatchSize = size; } - private static float getDistance(final int p1x, final int p1y, - final int p2x, final int p2y) { - final float dx = p1x - p2x; - final float dy = p1y - p2y; + private static float getDistance(final int x1, final int y1, final int x2, final int y2) { + final float dx = x1 - x2; + final float dy = y1 - y2; // Note that, in recent versions of Android, FloatMath is actually slower than // java.lang.Math due to the way the JIT optimizes java.lang.Math. return (float)Math.sqrt(dx * dx + dy * dy); } - private static float getAngle(final int p1x, final int p1y, final int p2x, final int p2y) { - final int dx = p1x - p2x; - final int dy = p1y - p2y; + private static float getAngle(final int x1, final int y1, final int x2, final int y2) { + final int dx = x1 - x2; + final int dy = y1 - y2; if (dx == 0 && dy == 0) return 0; - return (float)Math.atan2(dy, dx); + // Would it be faster to call atan2f() directly via JNI? Not sure about what the JIT + // does with Math.atan2(). + return (float)Math.atan2((double)dy, (double)dx); } private static float getAngleDiff(final float a1, final float a2) { |