libs/hwui/tests/unit/ClipAreaTests.cpp - platform/frameworks/base - Git at Google

 /*
  * 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(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());
     SkPath path;
     SkScalar r = 100;
     path.addCircle(r, r, r);
     area.clipPathWithTransform(path, &Matrix4::identity(), SkRegion::kIntersect_Op);
     EXPECT_FALSE(area.isEmpty());
     EXPECT_FALSE(area.isSimple());
     EXPECT_FALSE(area.isRectangleList());

     Rect clipRect(area.getClipRect());
     Rect expected(0, 0, r * 2, r * 2);
     EXPECT_EQ(expected, clipRect);
     SkRegion clipRegion(area.getClipRegion());
     auto skRect(clipRegion.getBounds());
     Rect regionBounds;
     regionBounds.set(skRect);
     EXPECT_EQ(expected, regionBounds);
 }

 TEST(ClipArea, replaceNegative) {
     ClipArea area(createClipArea());
     area.setClip(0, 0, 100, 100);

     Rect expected(-50, -50, 50, 50);
     area.clipRectWithTransform(expected, &Matrix4::identity(), SkRegion::kReplace_Op);
     EXPECT_EQ(expected, area.getClipRect());
 }

 TEST(ClipArea, serializeClip) {
     ClipArea area(createClipArea());
     LinearAllocator allocator;

     // unset clip
     EXPECT_EQ(nullptr, area.serializeClip(allocator));

     // rect clip
     area.setClip(0, 0, 200, 200);
     {
         auto serializedClip = area.serializeClip(allocator);
         ASSERT_NE(nullptr, serializedClip);
         ASSERT_EQ(ClipMode::Rectangle, serializedClip->mode);
         ASSERT_FALSE(serializedClip->intersectWithRoot) << "No replace, so no intersectWithRoot";
         EXPECT_EQ(Rect(200, 200), serializedClip->rect);
         EXPECT_EQ(serializedClip, area.serializeClip(allocator))
                 << "Requery of clip on unmodified ClipArea must return same pointer.";
     }

     // rect list
     Matrix4 rotate;
     rotate.loadRotate(5.0f);
     area.clipRectWithTransform(Rect(50, 50, 150, 150), &rotate, SkRegion::kIntersect_Op);
     {
         auto serializedClip = area.serializeClip(allocator);
         ASSERT_NE(nullptr, serializedClip);
         ASSERT_EQ(ClipMode::RectangleList, serializedClip->mode);
         ASSERT_FALSE(serializedClip->intersectWithRoot) << "No replace, so no intersectWithRoot";
         auto clipRectList = reinterpret_cast<const ClipRectList*>(serializedClip);
         EXPECT_EQ(2, clipRectList->rectList.getTransformedRectanglesCount());
         EXPECT_EQ(Rect(37, 54, 145, 163), clipRectList->rect);
         EXPECT_EQ(serializedClip, area.serializeClip(allocator))
                 << "Requery of clip on unmodified ClipArea must return same pointer.";
     }

     // region
     SkPath circlePath;
     circlePath.addCircle(100, 100, 100);
     area.clipPathWithTransform(circlePath, &Matrix4::identity(), SkRegion::kReplace_Op);
     {
         auto serializedClip = area.serializeClip(allocator);
         ASSERT_NE(nullptr, serializedClip);
         ASSERT_EQ(ClipMode::Region, serializedClip->mode);
         ASSERT_TRUE(serializedClip->intersectWithRoot) << "Replace op, so expect intersectWithRoot";
         auto clipRegion = reinterpret_cast<const ClipRegion*>(serializedClip);
         EXPECT_EQ(SkIRect::MakeWH(200, 200), clipRegion->region.getBounds())
                 << "Clip region should be 200x200";
         EXPECT_EQ(Rect(200, 200), clipRegion->rect);
         EXPECT_EQ(serializedClip, area.serializeClip(allocator))
                 << "Requery of clip on unmodified ClipArea must return same pointer.";
     }
 }

 TEST(ClipArea, serializeClip_pathIntersectWithRoot) {
     ClipArea area(createClipArea());
     LinearAllocator allocator;
     SkPath circlePath;
     circlePath.addCircle(100, 100, 100);
     area.clipPathWithTransform(circlePath, &Matrix4::identity(), SkRegion::kIntersect_Op);

     auto serializedClip = area.serializeClip(allocator);
     ASSERT_NE(nullptr, serializedClip);
     EXPECT_FALSE(serializedClip->intersectWithRoot) << "No replace, so no intersectWithRoot";
 }

 TEST(ClipArea, serializeIntersectedClip) {
     ClipArea area(createClipArea());
     LinearAllocator allocator;

     // simple state;
     EXPECT_EQ(nullptr, area.serializeIntersectedClip(allocator, nullptr, Matrix4::identity()));
     area.setClip(0, 0, 200, 200);
     {
         auto origRectClip = area.serializeClip(allocator);
         ASSERT_NE(nullptr, origRectClip);
         EXPECT_EQ(origRectClip, area.serializeIntersectedClip(allocator, nullptr, Matrix4::identity()));
     }

     // rect
     {
         ClipRect recordedClip(Rect(100, 100));
         Matrix4 translateScale;
         translateScale.loadTranslate(100, 100, 0);
         translateScale.scale(2, 3, 1);
         auto resolvedClip = area.serializeIntersectedClip(allocator, &recordedClip, translateScale);
         ASSERT_NE(nullptr, resolvedClip);
         ASSERT_EQ(ClipMode::Rectangle, resolvedClip->mode);
         EXPECT_EQ(Rect(100, 100, 200, 200), resolvedClip->rect);

         EXPECT_EQ(resolvedClip, area.serializeIntersectedClip(allocator, &recordedClip, translateScale))
                 << "Must return previous serialization, since input is same";

         ClipRect recordedClip2(Rect(100, 100));
         EXPECT_NE(resolvedClip, area.serializeIntersectedClip(allocator, &recordedClip2, translateScale))
                 << "Shouldn't return previous serialization, since matrix location is different";
     }

     // rect list
     Matrix4 rotate;
     rotate.loadRotate(2.0f);
     area.clipRectWithTransform(Rect(200, 200), &rotate, SkRegion::kIntersect_Op);
     {
         ClipRect recordedClip(Rect(100, 100));
         auto resolvedClip = area.serializeIntersectedClip(allocator, &recordedClip, Matrix4::identity());
         ASSERT_NE(nullptr, resolvedClip);
         ASSERT_EQ(ClipMode::RectangleList, resolvedClip->mode);
         auto clipRectList = reinterpret_cast<const ClipRectList*>(resolvedClip);
         EXPECT_EQ(2, clipRectList->rectList.getTransformedRectanglesCount());
     }

     // region
     SkPath circlePath;
     circlePath.addCircle(100, 100, 100);
     area.clipPathWithTransform(circlePath, &Matrix4::identity(), SkRegion::kReplace_Op);
     {
         SkPath ovalPath;
         ovalPath.addOval(SkRect::MakeLTRB(50, 0, 150, 200));

         ClipRegion recordedClip;
         recordedClip.region.setPath(ovalPath, SkRegion(SkIRect::MakeWH(200, 200)));
         recordedClip.rect = Rect(200, 200);

         Matrix4 translate10x20;
         translate10x20.loadTranslate(10, 20, 0);
         auto resolvedClip = area.serializeIntersectedClip(allocator, &recordedClip,
                 translate10x20); // Note: only translate for now, others not handled correctly
         ASSERT_NE(nullptr, resolvedClip);
         ASSERT_EQ(ClipMode::Region, resolvedClip->mode);
         auto clipRegion = reinterpret_cast<const ClipRegion*>(resolvedClip);
         EXPECT_EQ(SkIRect::MakeLTRB(60, 20, 160, 200), clipRegion->region.getBounds());
     }
 }

 TEST(ClipArea, serializeIntersectedClip_snap) {
     ClipArea area(createClipArea());
     area.setClip(100.2, 100.4, 500.6, 500.8);
     LinearAllocator allocator;

     {
         // no recorded clip case
         auto resolvedClip = area.serializeIntersectedClip(allocator, nullptr, Matrix4::identity());
         EXPECT_EQ(Rect(100, 100, 501, 501), resolvedClip->rect);
     }
     {
         // recorded clip case
         ClipRect recordedClip(Rect(100.12, 100.74));
         Matrix4 translateScale;
         translateScale.loadTranslate(100, 100, 0);
         translateScale.scale(2, 3, 1); // recorded clip will have non-int coords, even after transform
         auto resolvedClip = area.serializeIntersectedClip(allocator, &recordedClip, translateScale);
         ASSERT_NE(nullptr, resolvedClip);
         EXPECT_EQ(ClipMode::Rectangle, resolvedClip->mode);
         EXPECT_EQ(Rect(100, 100, 300, 402), resolvedClip->rect);
     }
 }

 } // namespace uirenderer
 } // namespace android
	/*
	* 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(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());
	SkPath path;
	SkScalar r = 100;
	path.addCircle(r, r, r);
	area.clipPathWithTransform(path, &Matrix4::identity(), SkRegion::kIntersect_Op);
	EXPECT_FALSE(area.isEmpty());
	EXPECT_FALSE(area.isSimple());
	EXPECT_FALSE(area.isRectangleList());

	Rect clipRect(area.getClipRect());
	Rect expected(0, 0, r * 2, r * 2);
	EXPECT_EQ(expected, clipRect);
	SkRegion clipRegion(area.getClipRegion());
	auto skRect(clipRegion.getBounds());
	Rect regionBounds;
	regionBounds.set(skRect);
	EXPECT_EQ(expected, regionBounds);
	}

	TEST(ClipArea, replaceNegative) {
	ClipArea area(createClipArea());
	area.setClip(0, 0, 100, 100);

	Rect expected(-50, -50, 50, 50);
	area.clipRectWithTransform(expected, &Matrix4::identity(), SkRegion::kReplace_Op);
	EXPECT_EQ(expected, area.getClipRect());
	}

	TEST(ClipArea, serializeClip) {
	ClipArea area(createClipArea());
	LinearAllocator allocator;

	// unset clip
	EXPECT_EQ(nullptr, area.serializeClip(allocator));

	// rect clip
	area.setClip(0, 0, 200, 200);
	{
	auto serializedClip = area.serializeClip(allocator);
	ASSERT_NE(nullptr, serializedClip);
	ASSERT_EQ(ClipMode::Rectangle, serializedClip->mode);
	ASSERT_FALSE(serializedClip->intersectWithRoot) << "No replace, so no intersectWithRoot";
	EXPECT_EQ(Rect(200, 200), serializedClip->rect);
	EXPECT_EQ(serializedClip, area.serializeClip(allocator))
	<< "Requery of clip on unmodified ClipArea must return same pointer.";
	}

	// rect list
	Matrix4 rotate;
	rotate.loadRotate(5.0f);
	area.clipRectWithTransform(Rect(50, 50, 150, 150), &rotate, SkRegion::kIntersect_Op);
	{
	auto serializedClip = area.serializeClip(allocator);
	ASSERT_NE(nullptr, serializedClip);
	ASSERT_EQ(ClipMode::RectangleList, serializedClip->mode);
	ASSERT_FALSE(serializedClip->intersectWithRoot) << "No replace, so no intersectWithRoot";
	auto clipRectList = reinterpret_cast<const ClipRectList*>(serializedClip);
	EXPECT_EQ(2, clipRectList->rectList.getTransformedRectanglesCount());
	EXPECT_EQ(Rect(37, 54, 145, 163), clipRectList->rect);
	EXPECT_EQ(serializedClip, area.serializeClip(allocator))
	<< "Requery of clip on unmodified ClipArea must return same pointer.";
	}

	// region
	SkPath circlePath;
	circlePath.addCircle(100, 100, 100);
	area.clipPathWithTransform(circlePath, &Matrix4::identity(), SkRegion::kReplace_Op);
	{
	auto serializedClip = area.serializeClip(allocator);
	ASSERT_NE(nullptr, serializedClip);
	ASSERT_EQ(ClipMode::Region, serializedClip->mode);
	ASSERT_TRUE(serializedClip->intersectWithRoot) << "Replace op, so expect intersectWithRoot";
	auto clipRegion = reinterpret_cast<const ClipRegion*>(serializedClip);
	EXPECT_EQ(SkIRect::MakeWH(200, 200), clipRegion->region.getBounds())
	<< "Clip region should be 200x200";
	EXPECT_EQ(Rect(200, 200), clipRegion->rect);
	EXPECT_EQ(serializedClip, area.serializeClip(allocator))
	<< "Requery of clip on unmodified ClipArea must return same pointer.";
	}
	}

	TEST(ClipArea, serializeClip_pathIntersectWithRoot) {
	ClipArea area(createClipArea());
	LinearAllocator allocator;
	SkPath circlePath;
	circlePath.addCircle(100, 100, 100);
	area.clipPathWithTransform(circlePath, &Matrix4::identity(), SkRegion::kIntersect_Op);

	auto serializedClip = area.serializeClip(allocator);
	ASSERT_NE(nullptr, serializedClip);
	EXPECT_FALSE(serializedClip->intersectWithRoot) << "No replace, so no intersectWithRoot";
	}

	TEST(ClipArea, serializeIntersectedClip) {
	ClipArea area(createClipArea());
	LinearAllocator allocator;

	// simple state;
	EXPECT_EQ(nullptr, area.serializeIntersectedClip(allocator, nullptr, Matrix4::identity()));
	area.setClip(0, 0, 200, 200);
	{
	auto origRectClip = area.serializeClip(allocator);
	ASSERT_NE(nullptr, origRectClip);
	EXPECT_EQ(origRectClip, area.serializeIntersectedClip(allocator, nullptr, Matrix4::identity()));
	}

	// rect
	{
	ClipRect recordedClip(Rect(100, 100));
	Matrix4 translateScale;
	translateScale.loadTranslate(100, 100, 0);
	translateScale.scale(2, 3, 1);
	auto resolvedClip = area.serializeIntersectedClip(allocator, &recordedClip, translateScale);
	ASSERT_NE(nullptr, resolvedClip);
	ASSERT_EQ(ClipMode::Rectangle, resolvedClip->mode);
	EXPECT_EQ(Rect(100, 100, 200, 200), resolvedClip->rect);

	EXPECT_EQ(resolvedClip, area.serializeIntersectedClip(allocator, &recordedClip, translateScale))
	<< "Must return previous serialization, since input is same";

	ClipRect recordedClip2(Rect(100, 100));
	EXPECT_NE(resolvedClip, area.serializeIntersectedClip(allocator, &recordedClip2, translateScale))
	<< "Shouldn't return previous serialization, since matrix location is different";
	}

	// rect list
	Matrix4 rotate;
	rotate.loadRotate(2.0f);
	area.clipRectWithTransform(Rect(200, 200), &rotate, SkRegion::kIntersect_Op);
	{
	ClipRect recordedClip(Rect(100, 100));
	auto resolvedClip = area.serializeIntersectedClip(allocator, &recordedClip, Matrix4::identity());
	ASSERT_NE(nullptr, resolvedClip);
	ASSERT_EQ(ClipMode::RectangleList, resolvedClip->mode);
	auto clipRectList = reinterpret_cast<const ClipRectList*>(resolvedClip);
	EXPECT_EQ(2, clipRectList->rectList.getTransformedRectanglesCount());
	}

	// region
	SkPath circlePath;
	circlePath.addCircle(100, 100, 100);
	area.clipPathWithTransform(circlePath, &Matrix4::identity(), SkRegion::kReplace_Op);
	{
	SkPath ovalPath;
	ovalPath.addOval(SkRect::MakeLTRB(50, 0, 150, 200));

	ClipRegion recordedClip;
	recordedClip.region.setPath(ovalPath, SkRegion(SkIRect::MakeWH(200, 200)));
	recordedClip.rect = Rect(200, 200);

	Matrix4 translate10x20;
	translate10x20.loadTranslate(10, 20, 0);
	auto resolvedClip = area.serializeIntersectedClip(allocator, &recordedClip,
	translate10x20); // Note: only translate for now, others not handled correctly
	ASSERT_NE(nullptr, resolvedClip);
	ASSERT_EQ(ClipMode::Region, resolvedClip->mode);
	auto clipRegion = reinterpret_cast<const ClipRegion*>(resolvedClip);
	EXPECT_EQ(SkIRect::MakeLTRB(60, 20, 160, 200), clipRegion->region.getBounds());
	}
	}

	TEST(ClipArea, serializeIntersectedClip_snap) {
	ClipArea area(createClipArea());
	area.setClip(100.2, 100.4, 500.6, 500.8);
	LinearAllocator allocator;

	{
	// no recorded clip case
	auto resolvedClip = area.serializeIntersectedClip(allocator, nullptr, Matrix4::identity());
	EXPECT_EQ(Rect(100, 100, 501, 501), resolvedClip->rect);
	}
	{
	// recorded clip case
	ClipRect recordedClip(Rect(100.12, 100.74));
	Matrix4 translateScale;
	translateScale.loadTranslate(100, 100, 0);
	translateScale.scale(2, 3, 1); // recorded clip will have non-int coords, even after transform
	auto resolvedClip = area.serializeIntersectedClip(allocator, &recordedClip, translateScale);
	ASSERT_NE(nullptr, resolvedClip);
	EXPECT_EQ(ClipMode::Rectangle, resolvedClip->mode);
	EXPECT_EQ(Rect(100, 100, 300, 402), resolvedClip->rect);
	}
	}

	} // namespace uirenderer
	} // namespace android