Merge "Clipping performance improvements"

2 files changed, 129 insertions, 0 deletions

diff --git a/libs/hwui/tests/Android.mk b/libs/hwui/tests/Android.mk
index 2fff07d..a69f3fb 100644
--- a/libs/hwui/tests/Android.mk
+++ b/libs/hwui/tests/Android.mk
@@ -32,3 +32,16 @@ LOCAL_SRC_FILES += \
 	tests/main.cpp
 
 include $(BUILD_EXECUTABLE)
+
+include $(CLEAR_VARS)
+
+LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.common.mk
+LOCAL_MODULE := hwui_unit_tests
+LOCAL_MODULE_TAGS := tests
+
+include $(LOCAL_PATH)/Android.common.mk
+
+LOCAL_SRC_FILES += \
+	tests/ClipAreaTests.cpp \
+
+include $(BUILD_NATIVE_TEST)
diff --git a/libs/hwui/tests/ClipAreaTests.cpp b/libs/hwui/tests/ClipAreaTests.cpp
new file mode 100644
index 0000000..166d5b6
--- /dev/null
+++ b/libs/hwui/tests/ClipAreaTests.cpp
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2015 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 <gtest/gtest.h>
+#include <SkPath.h>
+#include <SkRegion.h>
+
+#include "ClipArea.h"
+
+#include "Matrix.h"
+#include "Rect.h"
+#include "utils/LinearAllocator.h"
+
+namespace android {
+namespace uirenderer {
+
+static Rect kViewportBounds(0, 0, 2048, 2048);
+
+static ClipArea createClipArea() {
+    ClipArea area;
+    area.setViewportDimensions(kViewportBounds.getWidth(), kViewportBounds.getHeight());
+    return area;
+}
+
+TEST(TransformedRectangle, basics) {
+    Rect r(0, 0, 100, 100);
+    Matrix4 minus90;
+    minus90.loadRotate(-90);
+    minus90.mapRect(r);
+    Rect r2(20, 40, 120, 60);
+
+    Matrix4 m90;
+    m90.loadRotate(90);
+    TransformedRectangle tr(r, m90);
+    EXPECT_TRUE(tr.canSimplyIntersectWith(tr));
+
+    Matrix4 m0;
+    TransformedRectangle tr0(r2, m0);
+    EXPECT_FALSE(tr.canSimplyIntersectWith(tr0));
+
+    Matrix4 m45;
+    m45.loadRotate(45);
+    TransformedRectangle tr2(r, m45);
+    EXPECT_FALSE(tr2.canSimplyIntersectWith(tr));
+}
+
+TEST(RectangleList, basics) {
+    RectangleList list;
+    EXPECT_TRUE(list.isEmpty());
+
+    Rect r(0, 0, 100, 100);
+    Matrix4 m45;
+    m45.loadRotate(45);
+    list.set(r, m45);
+    EXPECT_FALSE(list.isEmpty());
+
+    Rect r2(20, 20, 200, 200);
+    list.intersectWith(r2, m45);
+    EXPECT_FALSE(list.isEmpty());
+    EXPECT_EQ(1, list.getTransformedRectanglesCount());
+
+    Rect r3(20, 20, 200, 200);
+    Matrix4 m30;
+    m30.loadRotate(30);
+    list.intersectWith(r2, m30);
+    EXPECT_FALSE(list.isEmpty());
+    EXPECT_EQ(2, list.getTransformedRectanglesCount());
+
+    SkRegion clip;
+    clip.setRect(0, 0, 2000, 2000);
+    SkRegion rgn(list.convertToRegion(clip));
+    EXPECT_FALSE(rgn.isEmpty());
+}
+
+TEST(ClipArea, basics) {
+    ClipArea area(createClipArea());
+    EXPECT_FALSE(area.isEmpty());
+}
+
+TEST(ClipArea, paths) {
+    ClipArea area(createClipArea());
+    Matrix4 transform;
+    transform.loadIdentity();
+    SkPath path;
+    SkScalar r = 100;
+    path.addCircle(r, r, r);
+    area.clipPathWithTransform(path, &transform, SkRegion::kIntersect_Op);
+    EXPECT_FALSE(area.isEmpty());
+    EXPECT_FALSE(area.isSimple());
+    EXPECT_FALSE(area.isRectangleList());
+    Rect clipRect(area.getClipRect());
+    clipRect.dump("clipRect");
+    Rect expected(0, 0, r * 2, r * 2);
+    expected.dump("expected");
+    EXPECT_EQ(expected, clipRect);
+    SkRegion clipRegion(area.getClipRegion());
+    auto skRect(clipRegion.getBounds());
+    Rect regionBounds;
+    regionBounds.set(skRect);
+    EXPECT_EQ(expected, regionBounds);
+}
+}
+}