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/*
* 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 <SkPath.h>
#include <SkRegion.h>
#include <gtest/gtest.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);
}
}
TEST(ClipArea, serializeIntersectedClip_scale) {
ClipArea area(createClipArea());
area.setClip(0, 0, 400, 400);
LinearAllocator allocator;
SkPath circlePath;
circlePath.addCircle(50, 50, 50);
ClipRegion recordedClip;
recordedClip.region.setPath(circlePath, SkRegion(SkIRect::MakeWH(100, 100)));
recordedClip.rect = Rect(100, 100);
Matrix4 translateScale;
translateScale.loadTranslate(100, 100, 0);
translateScale.scale(2, 2, 1);
auto resolvedClip = area.serializeIntersectedClip(allocator, &recordedClip, translateScale);
ASSERT_NE(nullptr, resolvedClip);
EXPECT_EQ(ClipMode::Region, resolvedClip->mode);
EXPECT_EQ(Rect(100, 100, 300, 300), resolvedClip->rect);
auto clipRegion = reinterpret_cast<const ClipRegion*>(resolvedClip);
EXPECT_EQ(SkIRect::MakeLTRB(100, 100, 300, 300), clipRegion->region.getBounds());
}
TEST(ClipArea, applyTransformToRegion_identity) {
SkRegion region(SkIRect::MakeLTRB(1, 2, 3, 4));
ClipArea::applyTransformToRegion(Matrix4::identity(), &region);
EXPECT_TRUE(region.isRect());
EXPECT_EQ(SkIRect::MakeLTRB(1, 2, 3, 4), region.getBounds());
}
TEST(ClipArea, applyTransformToRegion_translate) {
SkRegion region(SkIRect::MakeLTRB(1, 2, 3, 4));
Matrix4 transform;
transform.loadTranslate(10, 20, 0);
ClipArea::applyTransformToRegion(transform, &region);
EXPECT_TRUE(region.isRect());
EXPECT_EQ(SkIRect::MakeLTRB(11, 22, 13, 24), region.getBounds());
}
TEST(ClipArea, applyTransformToRegion_scale) {
SkRegion region(SkIRect::MakeLTRB(1, 2, 3, 4));
Matrix4 transform;
transform.loadScale(2, 3, 1);
ClipArea::applyTransformToRegion(transform, &region);
EXPECT_TRUE(region.isRect());
EXPECT_EQ(SkIRect::MakeLTRB(2, 6, 6, 12), region.getBounds());
}
TEST(ClipArea, applyTransformToRegion_translateScale) {
SkRegion region(SkIRect::MakeLTRB(1, 2, 3, 4));
Matrix4 transform;
transform.translate(10, 20);
transform.scale(2, 3, 1);
ClipArea::applyTransformToRegion(transform, &region);
EXPECT_TRUE(region.isRect());
EXPECT_EQ(SkIRect::MakeLTRB(12, 26, 16, 32), region.getBounds());
}
TEST(ClipArea, applyTransformToRegion_rotate90) {
SkRegion region(SkIRect::MakeLTRB(1, 2, 3, 4));
Matrix4 transform;
transform.loadRotate(90);
ClipArea::applyTransformToRegion(transform, &region);
EXPECT_TRUE(region.isRect());
EXPECT_EQ(SkIRect::MakeLTRB(-4, 1, -2, 3), region.getBounds());
}
} // namespace uirenderer
} // namespace android