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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "remoting/host/capturer_helper.h"
#include "base/memory/scoped_ptr.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace remoting {
class CapturerHelperTest : public testing::Test {
protected:
CapturerHelper capturer_helper_;
};
bool Equals(const SkRegion& region1, const SkRegion& region2) {
SkRegion::Iterator iter1(region1);
SkRegion::Iterator iter2(region2);
while (!iter1.done()) {
SkIRect rect1 = iter1.rect();
iter1.next();
if (iter2.done()) {
return false;
}
SkIRect rect2 = iter2.rect();
iter2.next();
if (rect1 != rect2) {
return false;
}
}
if (!iter2.done()) {
return false;
}
return true;
}
TEST_F(CapturerHelperTest, ClearInvalidRegion) {
SkRegion region;
capturer_helper_.InvalidateRegion(SkRegion(SkIRect::MakeXYWH(1, 2, 3, 4)));
capturer_helper_.ClearInvalidRegion();
capturer_helper_.SwapInvalidRegion(®ion);
ASSERT_TRUE(region.isEmpty());
}
TEST_F(CapturerHelperTest, InvalidateRegion) {
SkRegion region;
capturer_helper_.SwapInvalidRegion(®ion);
ASSERT_TRUE(Equals(SkRegion(SkIRect::MakeEmpty()), region));
capturer_helper_.InvalidateRegion(SkRegion(SkIRect::MakeXYWH(1, 2, 3, 4)));
region.setEmpty();
capturer_helper_.SwapInvalidRegion(®ion);
ASSERT_TRUE(Equals(SkRegion(SkIRect::MakeXYWH(1, 2, 3, 4)), region));
capturer_helper_.InvalidateRegion(SkRegion(SkIRect::MakeXYWH(1, 2, 3, 4)));
capturer_helper_.InvalidateRegion(SkRegion(SkIRect::MakeXYWH(4, 2, 3, 4)));
region.setEmpty();
capturer_helper_.SwapInvalidRegion(®ion);
ASSERT_TRUE(Equals(SkRegion(SkIRect::MakeXYWH(1, 2, 6, 4)), region));
}
TEST_F(CapturerHelperTest, InvalidateScreen) {
SkRegion region;
capturer_helper_.InvalidateScreen(SkISize::Make(12, 34));
capturer_helper_.SwapInvalidRegion(®ion);
ASSERT_TRUE(Equals(SkRegion(SkIRect::MakeWH(12, 34)), region));
}
TEST_F(CapturerHelperTest, InvalidateFullScreen) {
SkRegion region;
capturer_helper_.set_size_most_recent(SkISize::Make(12, 34));
capturer_helper_.InvalidateFullScreen();
capturer_helper_.SwapInvalidRegion(®ion);
ASSERT_TRUE(Equals(SkRegion(SkIRect::MakeWH(12, 34)), region));
}
TEST_F(CapturerHelperTest, SizeMostRecent) {
ASSERT_EQ(SkISize::Make(0, 0), capturer_helper_.size_most_recent());
capturer_helper_.set_size_most_recent(SkISize::Make(12, 34));
ASSERT_EQ(SkISize::Make(12, 34), capturer_helper_.size_most_recent());
}
TEST_F(CapturerHelperTest, SetLogGridSize) {
capturer_helper_.set_size_most_recent(SkISize::Make(10, 10));
SkRegion region;
capturer_helper_.SwapInvalidRegion(®ion);
ASSERT_TRUE(Equals(SkRegion(SkIRect::MakeEmpty()), region));
capturer_helper_.InvalidateRegion(SkRegion(SkIRect::MakeXYWH(7, 7, 1, 1)));
region.setEmpty();
capturer_helper_.SwapInvalidRegion(®ion);
ASSERT_TRUE(Equals(SkRegion(SkIRect::MakeXYWH(7, 7, 1, 1)), region));
capturer_helper_.SetLogGridSize(-1);
capturer_helper_.InvalidateRegion(SkRegion(SkIRect::MakeXYWH(7, 7, 1, 1)));
region.setEmpty();
capturer_helper_.SwapInvalidRegion(®ion);
ASSERT_TRUE(Equals(SkRegion(SkIRect::MakeXYWH(7, 7, 1, 1)), region));
capturer_helper_.SetLogGridSize(0);
capturer_helper_.InvalidateRegion(SkRegion(SkIRect::MakeXYWH(7, 7, 1, 1)));
region.setEmpty();
capturer_helper_.SwapInvalidRegion(®ion);
ASSERT_TRUE(Equals(SkRegion(SkIRect::MakeXYWH(7, 7, 1, 1)), region));
capturer_helper_.SetLogGridSize(1);
capturer_helper_.InvalidateRegion(SkRegion(SkIRect::MakeXYWH(7, 7, 1, 1)));
region.setEmpty();
capturer_helper_.SwapInvalidRegion(®ion);
ASSERT_TRUE(Equals(SkRegion(SkIRect::MakeXYWH(6, 6, 2, 2)), region));
capturer_helper_.SetLogGridSize(2);
capturer_helper_.InvalidateRegion(SkRegion(SkIRect::MakeXYWH(7, 7, 1, 1)));
region.setEmpty();
capturer_helper_.SwapInvalidRegion(®ion);
ASSERT_TRUE(Equals(SkRegion(SkIRect::MakeXYWH(4, 4, 4, 4)), region));
capturer_helper_.SetLogGridSize(0);
capturer_helper_.InvalidateRegion(SkRegion(SkIRect::MakeXYWH(7, 7, 1, 1)));
region.setEmpty();
capturer_helper_.SwapInvalidRegion(®ion);
ASSERT_TRUE(Equals(SkRegion(SkIRect::MakeXYWH(7, 7, 1, 1)), region));
}
void TestExpandRegionToGrid(const SkRegion& region, int log_grid_size,
const SkRegion& expandedRegionExpected) {
scoped_ptr<SkRegion> expandedRegion1(
CapturerHelper::ExpandToGrid(region, log_grid_size));
ASSERT_TRUE(Equals(expandedRegionExpected, *expandedRegion1));
scoped_ptr<SkRegion> expandedRegion2(
CapturerHelper::ExpandToGrid(*expandedRegion1, log_grid_size));
ASSERT_TRUE(Equals(*expandedRegion1, *expandedRegion2));
}
void TestExpandRectToGrid(int l, int t, int r, int b, int log_grid_size,
int lExpanded, int tExpanded,
int rExpanded, int bExpanded) {
TestExpandRegionToGrid(SkRegion(SkIRect::MakeLTRB(l, t, r, b)), log_grid_size,
SkRegion(SkIRect::MakeLTRB(lExpanded, tExpanded,
rExpanded, bExpanded)));
}
TEST_F(CapturerHelperTest, ExpandToGrid) {
const int LOG_GRID_SIZE = 4;
const int GRID_SIZE = 1 << LOG_GRID_SIZE;
for (int i = -2; i <= 2; i++) {
int x = i * GRID_SIZE;
for (int j = -2; j <= 2; j++) {
int y = j * GRID_SIZE;
TestExpandRectToGrid(x + 0, y + 0, x + 1, y + 1, LOG_GRID_SIZE,
x + 0, y + 0, x + GRID_SIZE, y + GRID_SIZE);
TestExpandRectToGrid(x + 0, y + GRID_SIZE - 1, x + 1, y + GRID_SIZE,
LOG_GRID_SIZE,
x + 0, y + 0, x + GRID_SIZE, y + GRID_SIZE);
TestExpandRectToGrid(x + GRID_SIZE - 1, y + GRID_SIZE - 1,
x + GRID_SIZE, y + GRID_SIZE, LOG_GRID_SIZE,
x + 0, y + 0, x + GRID_SIZE, y + GRID_SIZE);
TestExpandRectToGrid(x + GRID_SIZE - 1, y + 0,
x + GRID_SIZE, y + 1, LOG_GRID_SIZE,
x + 0, y + 0, x + GRID_SIZE, y + GRID_SIZE);
TestExpandRectToGrid(x - 1, y + 0, x + 1, y + 1, LOG_GRID_SIZE,
x - GRID_SIZE, y + 0, x + GRID_SIZE, y + GRID_SIZE);
TestExpandRectToGrid(x - 1, y - 1, x + 1, y + 0, LOG_GRID_SIZE,
x - GRID_SIZE, y - GRID_SIZE, x + GRID_SIZE, y);
TestExpandRectToGrid(x + 0, y - 1, x + 1, y + 1, LOG_GRID_SIZE,
x, y - GRID_SIZE, x + GRID_SIZE, y + GRID_SIZE);
TestExpandRectToGrid(x - 1, y - 1, x + 0, y + 1, LOG_GRID_SIZE,
x - GRID_SIZE, y - GRID_SIZE, x, y + GRID_SIZE);
SkRegion region(SkIRect::MakeLTRB(x - 1, y - 1, x + 1, y + 1));
region.op(SkIRect::MakeLTRB(x - 1, y - 1, x + 0, y + 0),
SkRegion::kDifference_Op);
SkRegion expandedRegionExpected(SkIRect::MakeLTRB(
x - GRID_SIZE, y - GRID_SIZE, x + GRID_SIZE, y + GRID_SIZE));
expandedRegionExpected.op(
SkIRect::MakeLTRB(x - GRID_SIZE, y - GRID_SIZE, x + 0, y + 0),
SkRegion::kDifference_Op);
TestExpandRegionToGrid(region, LOG_GRID_SIZE, expandedRegionExpected);
region.setRect(SkIRect::MakeLTRB(x - 1, y - 1, x + 1, y + 1));
region.op(SkIRect::MakeLTRB(x - 1, y + 0, x + 0, y + 1),
SkRegion::kDifference_Op);
expandedRegionExpected.setRect(SkIRect::MakeLTRB(
x - GRID_SIZE, y - GRID_SIZE, x + GRID_SIZE, y + GRID_SIZE));
expandedRegionExpected.op(
SkIRect::MakeLTRB(x - GRID_SIZE, y + 0, x + 0, y + GRID_SIZE),
SkRegion::kDifference_Op);
TestExpandRegionToGrid(region, LOG_GRID_SIZE, expandedRegionExpected);
region.setRect(SkIRect::MakeLTRB(x - 1, y - 1, x + 1, y + 1));
region.op(SkIRect::MakeLTRB(x + 0, y + 0, x + 1, y + 1),
SkRegion::kDifference_Op);
expandedRegionExpected.setRect(SkIRect::MakeLTRB(
x - GRID_SIZE, y - GRID_SIZE, x + GRID_SIZE, y + GRID_SIZE));
expandedRegionExpected.op(
SkIRect::MakeLTRB(x + 0, y + 0, x + GRID_SIZE, y + GRID_SIZE),
SkRegion::kDifference_Op);
TestExpandRegionToGrid(region, LOG_GRID_SIZE, expandedRegionExpected);
region.setRect(SkIRect::MakeLTRB(x - 1, y - 1, x + 1, y + 1));
region.op(SkIRect::MakeLTRB(x + 0, y - 1, x + 1, y + 0),
SkRegion::kDifference_Op);
expandedRegionExpected.setRect(SkIRect::MakeLTRB(
x - GRID_SIZE, y - GRID_SIZE, x + GRID_SIZE, y + GRID_SIZE));
expandedRegionExpected.op(
SkIRect::MakeLTRB(x + 0, y - GRID_SIZE, x + GRID_SIZE, y + 0),
SkRegion::kDifference_Op);
TestExpandRegionToGrid(region, LOG_GRID_SIZE, expandedRegionExpected);
}
}
}
} // namespace remoting
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