Apply bilinear filtering on text only when necessary.
Change-Id: Ic903f4b5d30e9c92528c6291941896efe4729ee3
diff --git a/libs/hwui/Matrix.cpp b/libs/hwui/Matrix.cpp
index c698b5a..219fd5e 100644
--- a/libs/hwui/Matrix.cpp
+++ b/libs/hwui/Matrix.cpp
@@ -53,6 +53,15 @@
mSimpleMatrix = true;
}
+#define EPSILON 0.00001f
+#define almost(u, v) (fabs((u) - (v)) < EPSILON)
+
+bool Matrix4::changesBounds() {
+ return !(almost(data[0], 1.0f) && almost(data[1], 0.0f) && almost(data[2], 0.0f) &&
+ almost(data[4], 0.0f) && almost(data[5], 1.0f) && almost(data[6], 0.0f) &&
+ almost(data[8], 0.0f) && almost(data[9], 0.0f) && almost(data[10], 1.0f));
+}
+
void Matrix4::load(const float* v) {
memcpy(data, v, sizeof(data));
mSimpleMatrix = false;