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// Copyright 2014 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 <vector>
#include "cc/blink/web_layer_impl_fixed_bounds.h"
#include "cc/layers/layer_settings.h"
#include "cc/layers/picture_image_layer.h"
#include "cc/test/fake_layer_tree_host.h"
#include "cc/test/geometry_test_utils.h"
#include "cc/test/test_task_graph_runner.h"
#include "cc/trees/layer_tree_host_common.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/WebKit/public/platform/WebFloatPoint.h"
#include "third_party/WebKit/public/platform/WebSize.h"
#include "third_party/skia/include/utils/SkMatrix44.h"
#include "ui/gfx/geometry/point3_f.h"
using blink::WebFloatPoint;
using blink::WebSize;
namespace cc_blink {
namespace {
TEST(WebLayerImplFixedBoundsTest, IdentityBounds) {
scoped_ptr<WebLayerImplFixedBounds> layer(new WebLayerImplFixedBounds());
layer->SetFixedBounds(gfx::Size(100, 100));
layer->setBounds(WebSize(100, 100));
EXPECT_EQ(WebSize(100, 100), layer->bounds());
EXPECT_EQ(gfx::Size(100, 100), layer->layer()->bounds());
EXPECT_EQ(gfx::Transform(), layer->layer()->transform());
}
gfx::Point3F TransformPoint(const gfx::Transform& transform,
const gfx::Point3F& point) {
gfx::Point3F result = point;
transform.TransformPoint(&result);
return result;
}
void CheckBoundsScaleSimple(WebLayerImplFixedBounds* layer,
const WebSize& bounds,
const gfx::Size& fixed_bounds) {
layer->setBounds(bounds);
layer->SetFixedBounds(fixed_bounds);
EXPECT_EQ(bounds, layer->bounds());
EXPECT_EQ(fixed_bounds, layer->layer()->bounds());
EXPECT_TRUE(layer->transform().isIdentity());
// An arbitrary point to check the scale and transforms.
gfx::Point3F original_point(10, 20, 1);
gfx::Point3F scaled_point(
original_point.x() * bounds.width / fixed_bounds.width(),
original_point.y() * bounds.height / fixed_bounds.height(),
original_point.z());
// Test if the bounds scale is correctly applied in transform.
EXPECT_POINT3F_EQ(scaled_point, TransformPoint(layer->layer()->transform(),
original_point));
}
TEST(WebLayerImplFixedBoundsTest, BoundsScaleSimple) {
scoped_ptr<WebLayerImplFixedBounds> layer(new WebLayerImplFixedBounds());
CheckBoundsScaleSimple(layer.get(), WebSize(100, 200), gfx::Size(150, 250));
// Change fixed_bounds.
CheckBoundsScaleSimple(layer.get(), WebSize(100, 200), gfx::Size(75, 100));
// Change bounds.
CheckBoundsScaleSimple(layer.get(), WebSize(300, 100), gfx::Size(75, 100));
}
void ExpectEqualLayerRectsInTarget(cc::Layer* layer1, cc::Layer* layer2) {
gfx::RectF layer1_rect_in_target(gfx::SizeF(layer1->bounds()));
layer1->draw_transform().TransformRect(&layer1_rect_in_target);
gfx::RectF layer2_rect_in_target(gfx::SizeF(layer2->bounds()));
layer2->draw_transform().TransformRect(&layer2_rect_in_target);
EXPECT_FLOAT_RECT_EQ(layer1_rect_in_target, layer2_rect_in_target);
}
void CompareFixedBoundsLayerAndNormalLayer(const WebFloatPoint& anchor_point,
const gfx::Transform& transform) {
const gfx::Size kDeviceViewportSize(800, 600);
const float kDeviceScaleFactor = 2.f;
const float kPageScaleFactor = 1.5f;
WebSize bounds(150, 200);
WebFloatPoint position(20, 30);
gfx::Size fixed_bounds(160, 70);
scoped_ptr<WebLayerImplFixedBounds> root_layer(new WebLayerImplFixedBounds());
WebLayerImplFixedBounds* fixed_bounds_layer = new WebLayerImplFixedBounds(
cc::PictureImageLayer::Create(cc::LayerSettings()));
fixed_bounds_layer->setBounds(bounds);
fixed_bounds_layer->SetFixedBounds(fixed_bounds);
fixed_bounds_layer->setTransform(transform.matrix());
fixed_bounds_layer->setPosition(position);
root_layer->addChild(fixed_bounds_layer);
WebLayerImpl* normal_layer(
new WebLayerImpl(cc::PictureImageLayer::Create(cc::LayerSettings())));
normal_layer->setBounds(bounds);
normal_layer->setTransform(transform.matrix());
normal_layer->setPosition(position);
root_layer->addChild(normal_layer);
cc::FakeLayerTreeHostClient client(cc::FakeLayerTreeHostClient::DIRECT_3D);
cc::TestTaskGraphRunner task_graph_runner;
scoped_ptr<cc::FakeLayerTreeHost> host =
cc::FakeLayerTreeHost::Create(&client, &task_graph_runner);
host->SetRootLayer(root_layer->layer());
{
cc::LayerTreeHostCommon::CalcDrawPropsMainInputs inputs(
root_layer->layer(), kDeviceViewportSize);
inputs.device_scale_factor = kDeviceScaleFactor;
inputs.page_scale_factor = kPageScaleFactor;
inputs.page_scale_layer = root_layer->layer(),
cc::LayerTreeHostCommon::CalculateDrawProperties(&inputs);
ExpectEqualLayerRectsInTarget(normal_layer->layer(),
fixed_bounds_layer->layer());
}
// Change of fixed bounds should not affect the target geometries.
fixed_bounds_layer->SetFixedBounds(
gfx::Size(fixed_bounds.width() / 2, fixed_bounds.height() * 2));
{
cc::LayerTreeHostCommon::CalcDrawPropsMainInputs inputs(
root_layer->layer(), kDeviceViewportSize);
inputs.device_scale_factor = kDeviceScaleFactor;
inputs.page_scale_factor = kPageScaleFactor;
inputs.page_scale_layer = root_layer->layer(),
cc::LayerTreeHostCommon::CalculateDrawProperties(&inputs);
ExpectEqualLayerRectsInTarget(normal_layer->layer(),
fixed_bounds_layer->layer());
}
}
// TODO(perkj): CompareToWebLayerImplSimple disabled on LSAN due to crbug/386080
#if defined(LEAK_SANITIZER)
#define MAYBE_CompareToWebLayerImplSimple DISABLED_CompareToWebLayerImplSimple
#else
#define MAYBE_CompareToWebLayerImplSimple CompareToWebLayerImplSimple
#endif
// A black box test that ensures WebLayerImplFixedBounds won't change target
// geometries. Simple case: identity transforms and zero anchor point.
TEST(WebLayerImplFixedBoundsTest, MAYBE_CompareToWebLayerImplSimple) {
CompareFixedBoundsLayerAndNormalLayer(WebFloatPoint(0, 0), gfx::Transform());
}
// TODO(perkj): CompareToWebLayerImplComplex disabled on LSAN due to
// crbug/386080
#if defined(LEAK_SANITIZER)
#define MAYBE_CompareToWebLayerImplComplex DISABLED_CompareToWebLayerImplComplex
#else
#define MAYBE_CompareToWebLayerImplComplex CompareToWebLayerImplComplex
#endif
// A black box test that ensures WebLayerImplFixedBounds won't change target
// geometries. Complex case: complex transforms and non-zero anchor point.
TEST(WebLayerImplFixedBoundsTest, MAYBE_CompareToWebLayerImplComplex) {
gfx::Transform transform;
// These are arbitrary values that should not affect the results.
transform.Translate3d(50, 60, 70);
transform.Scale3d(2, 3, 4);
transform.RotateAbout(gfx::Vector3dF(33, 44, 55), 99);
CompareFixedBoundsLayerAndNormalLayer(WebFloatPoint(0, 0), transform);
// With non-zero anchor point, WebLayerImplFixedBounds will fall back to
// WebLayerImpl.
CompareFixedBoundsLayerAndNormalLayer(WebFloatPoint(0.4f, 0.6f), transform);
}
} // namespace
} // namespace cc_blink
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