| // Copyright 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 "cc/keyframed_animation_curve.h" |
| |
| #include "testing/gmock/include/gmock/gmock.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include <public/WebTransformOperations.h> |
| #include <public/WebTransformationMatrix.h> |
| |
| using WebKit::WebTransformationMatrix; |
| |
| namespace cc { |
| namespace { |
| |
| void expectTranslateX(double translateX, const WebTransformationMatrix& matrix) |
| { |
| EXPECT_FLOAT_EQ(translateX, matrix.m41()); |
| } |
| |
| // Tests that a float animation with one keyframe works as expected. |
| TEST(KeyframedAnimationCurveTest, OneFloatKeyframe) |
| { |
| scoped_ptr<KeyframedFloatAnimationCurve> curve(KeyframedFloatAnimationCurve::create()); |
| curve->addKeyframe(FloatKeyframe::create(0, 2, scoped_ptr<TimingFunction>())); |
| EXPECT_FLOAT_EQ(2, curve->getValue(-1)); |
| EXPECT_FLOAT_EQ(2, curve->getValue(0)); |
| EXPECT_FLOAT_EQ(2, curve->getValue(0.5)); |
| EXPECT_FLOAT_EQ(2, curve->getValue(1)); |
| EXPECT_FLOAT_EQ(2, curve->getValue(2)); |
| } |
| |
| // Tests that a float animation with two keyframes works as expected. |
| TEST(KeyframedAnimationCurveTest, TwoFloatKeyframe) |
| { |
| scoped_ptr<KeyframedFloatAnimationCurve> curve(KeyframedFloatAnimationCurve::create()); |
| curve->addKeyframe(FloatKeyframe::create(0, 2, scoped_ptr<TimingFunction>())); |
| curve->addKeyframe(FloatKeyframe::create(1, 4, scoped_ptr<TimingFunction>())); |
| EXPECT_FLOAT_EQ(2, curve->getValue(-1)); |
| EXPECT_FLOAT_EQ(2, curve->getValue(0)); |
| EXPECT_FLOAT_EQ(3, curve->getValue(0.5)); |
| EXPECT_FLOAT_EQ(4, curve->getValue(1)); |
| EXPECT_FLOAT_EQ(4, curve->getValue(2)); |
| } |
| |
| // Tests that a float animation with three keyframes works as expected. |
| TEST(KeyframedAnimationCurveTest, ThreeFloatKeyframe) |
| { |
| scoped_ptr<KeyframedFloatAnimationCurve> curve(KeyframedFloatAnimationCurve::create()); |
| curve->addKeyframe(FloatKeyframe::create(0, 2, scoped_ptr<TimingFunction>())); |
| curve->addKeyframe(FloatKeyframe::create(1, 4, scoped_ptr<TimingFunction>())); |
| curve->addKeyframe(FloatKeyframe::create(2, 8, scoped_ptr<TimingFunction>())); |
| EXPECT_FLOAT_EQ(2, curve->getValue(-1)); |
| EXPECT_FLOAT_EQ(2, curve->getValue(0)); |
| EXPECT_FLOAT_EQ(3, curve->getValue(0.5)); |
| EXPECT_FLOAT_EQ(4, curve->getValue(1)); |
| EXPECT_FLOAT_EQ(6, curve->getValue(1.5)); |
| EXPECT_FLOAT_EQ(8, curve->getValue(2)); |
| EXPECT_FLOAT_EQ(8, curve->getValue(3)); |
| } |
| |
| // Tests that a float animation with multiple keys at a given time works sanely. |
| TEST(KeyframedAnimationCurveTest, RepeatedFloatKeyTimes) |
| { |
| scoped_ptr<KeyframedFloatAnimationCurve> curve(KeyframedFloatAnimationCurve::create()); |
| curve->addKeyframe(FloatKeyframe::create(0, 4, scoped_ptr<TimingFunction>())); |
| curve->addKeyframe(FloatKeyframe::create(1, 4, scoped_ptr<TimingFunction>())); |
| curve->addKeyframe(FloatKeyframe::create(1, 6, scoped_ptr<TimingFunction>())); |
| curve->addKeyframe(FloatKeyframe::create(2, 6, scoped_ptr<TimingFunction>())); |
| |
| EXPECT_FLOAT_EQ(4, curve->getValue(-1)); |
| EXPECT_FLOAT_EQ(4, curve->getValue(0)); |
| EXPECT_FLOAT_EQ(4, curve->getValue(0.5)); |
| |
| // There is a discontinuity at 1. Any value between 4 and 6 is valid. |
| float value = curve->getValue(1); |
| EXPECT_TRUE(value >= 4 && value <= 6); |
| |
| EXPECT_FLOAT_EQ(6, curve->getValue(1.5)); |
| EXPECT_FLOAT_EQ(6, curve->getValue(2)); |
| EXPECT_FLOAT_EQ(6, curve->getValue(3)); |
| } |
| |
| |
| // Tests that a transform animation with one keyframe works as expected. |
| TEST(KeyframedAnimationCurveTest, OneTransformKeyframe) |
| { |
| scoped_ptr<KeyframedTransformAnimationCurve> curve(KeyframedTransformAnimationCurve::create()); |
| WebKit::WebTransformOperations operations; |
| operations.appendTranslate(2, 0, 0); |
| curve->addKeyframe(TransformKeyframe::create(0, operations, scoped_ptr<TimingFunction>())); |
| |
| expectTranslateX(2, curve->getValue(-1)); |
| expectTranslateX(2, curve->getValue(0)); |
| expectTranslateX(2, curve->getValue(0.5)); |
| expectTranslateX(2, curve->getValue(1)); |
| expectTranslateX(2, curve->getValue(2)); |
| } |
| |
| // Tests that a transform animation with two keyframes works as expected. |
| TEST(KeyframedAnimationCurveTest, TwoTransformKeyframe) |
| { |
| scoped_ptr<KeyframedTransformAnimationCurve> curve(KeyframedTransformAnimationCurve::create()); |
| WebKit::WebTransformOperations operations1; |
| operations1.appendTranslate(2, 0, 0); |
| WebKit::WebTransformOperations operations2; |
| operations2.appendTranslate(4, 0, 0); |
| |
| curve->addKeyframe(TransformKeyframe::create(0, operations1, scoped_ptr<TimingFunction>())); |
| curve->addKeyframe(TransformKeyframe::create(1, operations2, scoped_ptr<TimingFunction>())); |
| expectTranslateX(2, curve->getValue(-1)); |
| expectTranslateX(2, curve->getValue(0)); |
| expectTranslateX(3, curve->getValue(0.5)); |
| expectTranslateX(4, curve->getValue(1)); |
| expectTranslateX(4, curve->getValue(2)); |
| } |
| |
| // Tests that a transform animation with three keyframes works as expected. |
| TEST(KeyframedAnimationCurveTest, ThreeTransformKeyframe) |
| { |
| scoped_ptr<KeyframedTransformAnimationCurve> curve(KeyframedTransformAnimationCurve::create()); |
| WebKit::WebTransformOperations operations1; |
| operations1.appendTranslate(2, 0, 0); |
| WebKit::WebTransformOperations operations2; |
| operations2.appendTranslate(4, 0, 0); |
| WebKit::WebTransformOperations operations3; |
| operations3.appendTranslate(8, 0, 0); |
| curve->addKeyframe(TransformKeyframe::create(0, operations1, scoped_ptr<TimingFunction>())); |
| curve->addKeyframe(TransformKeyframe::create(1, operations2, scoped_ptr<TimingFunction>())); |
| curve->addKeyframe(TransformKeyframe::create(2, operations3, scoped_ptr<TimingFunction>())); |
| expectTranslateX(2, curve->getValue(-1)); |
| expectTranslateX(2, curve->getValue(0)); |
| expectTranslateX(3, curve->getValue(0.5)); |
| expectTranslateX(4, curve->getValue(1)); |
| expectTranslateX(6, curve->getValue(1.5)); |
| expectTranslateX(8, curve->getValue(2)); |
| expectTranslateX(8, curve->getValue(3)); |
| } |
| |
| // Tests that a transform animation with multiple keys at a given time works sanely. |
| TEST(KeyframedAnimationCurveTest, RepeatedTransformKeyTimes) |
| { |
| scoped_ptr<KeyframedTransformAnimationCurve> curve(KeyframedTransformAnimationCurve::create()); |
| // A step function. |
| WebKit::WebTransformOperations operations1; |
| operations1.appendTranslate(4, 0, 0); |
| WebKit::WebTransformOperations operations2; |
| operations2.appendTranslate(4, 0, 0); |
| WebKit::WebTransformOperations operations3; |
| operations3.appendTranslate(6, 0, 0); |
| WebKit::WebTransformOperations operations4; |
| operations4.appendTranslate(6, 0, 0); |
| curve->addKeyframe(TransformKeyframe::create(0, operations1, scoped_ptr<TimingFunction>())); |
| curve->addKeyframe(TransformKeyframe::create(1, operations2, scoped_ptr<TimingFunction>())); |
| curve->addKeyframe(TransformKeyframe::create(1, operations3, scoped_ptr<TimingFunction>())); |
| curve->addKeyframe(TransformKeyframe::create(2, operations4, scoped_ptr<TimingFunction>())); |
| |
| expectTranslateX(4, curve->getValue(-1)); |
| expectTranslateX(4, curve->getValue(0)); |
| expectTranslateX(4, curve->getValue(0.5)); |
| |
| // There is a discontinuity at 1. Any value between 4 and 6 is valid. |
| WebTransformationMatrix value = curve->getValue(1); |
| EXPECT_TRUE(value.m41() >= 4 && value.m41() <= 6); |
| |
| expectTranslateX(6, curve->getValue(1.5)); |
| expectTranslateX(6, curve->getValue(2)); |
| expectTranslateX(6, curve->getValue(3)); |
| } |
| |
| // Tests that the keyframes may be added out of order. |
| TEST(KeyframedAnimationCurveTest, UnsortedKeyframes) |
| { |
| scoped_ptr<KeyframedFloatAnimationCurve> curve(KeyframedFloatAnimationCurve::create()); |
| curve->addKeyframe(FloatKeyframe::create(2, 8, scoped_ptr<TimingFunction>())); |
| curve->addKeyframe(FloatKeyframe::create(0, 2, scoped_ptr<TimingFunction>())); |
| curve->addKeyframe(FloatKeyframe::create(1, 4, scoped_ptr<TimingFunction>())); |
| EXPECT_FLOAT_EQ(2, curve->getValue(-1)); |
| EXPECT_FLOAT_EQ(2, curve->getValue(0)); |
| EXPECT_FLOAT_EQ(3, curve->getValue(0.5)); |
| EXPECT_FLOAT_EQ(4, curve->getValue(1)); |
| EXPECT_FLOAT_EQ(6, curve->getValue(1.5)); |
| EXPECT_FLOAT_EQ(8, curve->getValue(2)); |
| EXPECT_FLOAT_EQ(8, curve->getValue(3)); |
| } |
| |
| // Tests that a cubic bezier timing function works as expected. |
| TEST(KeyframedAnimationCurveTest, CubicBezierTimingFunction) |
| { |
| scoped_ptr<KeyframedFloatAnimationCurve> curve(KeyframedFloatAnimationCurve::create()); |
| curve->addKeyframe(FloatKeyframe::create(0, 0, CubicBezierTimingFunction::create(0.25, 0, 0.75, 1).PassAs<TimingFunction>())); |
| curve->addKeyframe(FloatKeyframe::create(1, 1, scoped_ptr<TimingFunction>())); |
| |
| EXPECT_FLOAT_EQ(0, curve->getValue(0)); |
| EXPECT_LT(0, curve->getValue(0.25)); |
| EXPECT_GT(0.25, curve->getValue(0.25)); |
| EXPECT_NEAR(curve->getValue(0.5), 0.5, 0.00015); |
| EXPECT_LT(0.75, curve->getValue(0.75)); |
| EXPECT_GT(1, curve->getValue(0.75)); |
| EXPECT_FLOAT_EQ(1, curve->getValue(1)); |
| } |
| |
| } // namespace |
| } // namespace cc |