add explicit mapScalars and mapMScalars entry-points, instead of just map()

git-svn-id: http://skia.googlecode.com/svn/trunk@6373 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 15 insertions, 1 deletions

diff --git a/src/utils/SkMatrix44.cpp b/src/utils/SkMatrix44.cpp
index f00e399191..4fe82deaf6 100644
--- a/src/utils/SkMatrix44.cpp
+++ b/src/utils/SkMatrix44.cpp
@@ -323,7 +323,7 @@ bool SkMatrix44::invert(SkMatrix44* inverse) const {
 
 ///////////////////////////////////////////////////////////////////////////////
 
-void SkMatrix44::map(const SkScalar src[4], SkScalar dst[4]) const {
+void SkMatrix44::mapScalars(const SkScalar src[4], SkScalar dst[4]) const {
     SkScalar result[4];
     for (int i = 0; i < 4; i++) {
         SkMScalar value = 0;
@@ -335,6 +335,20 @@ void SkMatrix44::map(const SkScalar src[4], SkScalar dst[4]) const {
     memcpy(dst, result, sizeof(result));
 }
 
+#ifdef SK_MSCALAR_IS_DOUBLE
+void SkMatrix44::mapMScalars(const SkMScalar src[4], SkMScalar dst[4]) const {
+    SkMScalar result[4];
+    for (int i = 0; i < 4; i++) {
+        SkMScalar value = 0;
+        for (int j = 0; j < 4; j++) {
+            value += fMat[j][i] * src[j];
+        }
+        result[i] = SkMScalarToScalar(value);
+    }
+    memcpy(dst, result, sizeof(result));
+}
+#endif
+
 ///////////////////////////////////////////////////////////////////////////////
 
 void SkMatrix44::dump() const {