1 files changed, 37 insertions, 0 deletions
diff --git a/libs/hwui/apex/android_matrix.cpp b/libs/hwui/apex/android_matrix.cpp
new file mode 100644
index 000000000000..693b22b62663
--- /dev/null
+++ b/libs/hwui/apex/android_matrix.cpp
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "android/graphics/matrix.h"
+#include "android_graphics_Matrix.h"
+
+bool AMatrix_getContents(JNIEnv* env, jobject matrixObj, float values[9]) {
+    static_assert(SkMatrix::kMScaleX == 0, "SkMatrix unexpected index");
+    static_assert(SkMatrix::kMSkewX ==  1, "SkMatrix unexpected index");
+    static_assert(SkMatrix::kMTransX == 2, "SkMatrix unexpected index");
+    static_assert(SkMatrix::kMSkewY ==  3, "SkMatrix unexpected index");
+    static_assert(SkMatrix::kMScaleY == 4, "SkMatrix unexpected index");
+    static_assert(SkMatrix::kMTransY == 5, "SkMatrix unexpected index");
+    static_assert(SkMatrix::kMPersp0 == 6, "SkMatrix unexpected index");
+    static_assert(SkMatrix::kMPersp1 == 7, "SkMatrix unexpected index");
+    static_assert(SkMatrix::kMPersp2 == 8, "SkMatrix unexpected index");
+
+    SkMatrix* m = android::android_graphics_Matrix_getSkMatrix(env, matrixObj);
+    if (m != nullptr) {
+        m->get9(values);
+        return true;
+    }
+    return false;
+}