[go: nahoru, domu]
AnimationContext.cpp revision e2478d45ccbe5b6abb360ac9d44771b5f4a50bde 
1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16#include "AnimationContext.h"
17
18#include "Animator.h"
19#include "RenderNode.h"
20#include "TreeInfo.h"
21#include "renderthread/TimeLord.h"
22
23namespace android {
24namespace uirenderer {
25
26AnimationContext::AnimationContext(renderthread::TimeLord& clock)
27        : mClock(clock)
28        , mCurrentFrameAnimations(*this)
29        , mNextFrameAnimations(*this)
30        , mFrameTimeMs(0) {
31}
32
33AnimationContext::~AnimationContext() {
34}
35
36void AnimationContext::destroy() {
37    startFrame();
38    while (mCurrentFrameAnimations.mNextHandle) {
39        AnimationHandle* current = mCurrentFrameAnimations.mNextHandle;
40        AnimatorManager& animators = current->mRenderNode->animators();
41        animators.endAllActiveAnimators();
42        LOG_ALWAYS_FATAL_IF(mCurrentFrameAnimations.mNextHandle == current,
43                "endAllAnimators failed to remove from current frame list!");
44    }
45}
46
47void AnimationContext::addAnimatingRenderNode(RenderNode& node) {
48    if (!node.animators().hasAnimationHandle()) {
49        AnimationHandle* handle = new AnimationHandle(node, *this);
50        addAnimationHandle(handle);
51    }
52}
53
54void AnimationContext::addAnimationHandle(AnimationHandle* handle) {
55    handle->insertAfter(&mNextFrameAnimations);
56}
57
58void AnimationContext::startFrame() {
59    LOG_ALWAYS_FATAL_IF(mCurrentFrameAnimations.mNextHandle,
60            "Missed running animations last frame!");
61    AnimationHandle* head = mNextFrameAnimations.mNextHandle;
62    if (head) {
63        mNextFrameAnimations.mNextHandle = NULL;
64        mCurrentFrameAnimations.mNextHandle = head;
65        head->mPreviousHandle = &mCurrentFrameAnimations;
66    }
67    mFrameTimeMs = mClock.computeFrameTimeMs();
68}
69
70void AnimationContext::runRemainingAnimations(TreeInfo& info) {
71    while (mCurrentFrameAnimations.mNextHandle) {
72        AnimationHandle* current = mCurrentFrameAnimations.mNextHandle;
73        AnimatorManager& animators = current->mRenderNode->animators();
74        animators.pushStaging();
75        animators.animateNoDamage(info);
76        LOG_ALWAYS_FATAL_IF(mCurrentFrameAnimations.mNextHandle == current,
77                "Animate failed to remove from current frame list!");
78    }
79}
80
81void AnimationContext::callOnFinished(BaseRenderNodeAnimator* animator,
82        AnimationListener* listener) {
83    listener->onAnimationFinished(animator);
84}
85
86AnimationHandle::AnimationHandle(AnimationContext& context)
87        : mContext(context)
88        , mPreviousHandle(NULL)
89        , mNextHandle(NULL) {
90}
91
92AnimationHandle::AnimationHandle(RenderNode& animatingNode, AnimationContext& context)
93        : mRenderNode(&animatingNode)
94        , mContext(context)
95        , mPreviousHandle(NULL)
96        , mNextHandle(NULL) {
97    mRenderNode->animators().setAnimationHandle(this);
98}
99
100AnimationHandle::~AnimationHandle() {
101    LOG_ALWAYS_FATAL_IF(mPreviousHandle || mNextHandle,
102            "AnimationHandle destroyed while still animating!");
103}
104
105void AnimationHandle::notifyAnimationsRan() {
106    removeFromList();
107    if (mRenderNode->animators().hasAnimators()) {
108        mContext.addAnimationHandle(this);
109    } else {
110        release();
111    }
112}
113
114void AnimationHandle::release() {
115    LOG_ALWAYS_FATAL_IF(mRenderNode->animators().hasAnimators(),
116            "Releasing the handle for an RenderNode with outstanding animators!");
117    removeFromList();
118    mRenderNode->animators().setAnimationHandle(NULL);
119    delete this;
120}
121
122void AnimationHandle::insertAfter(AnimationHandle* prev) {
123    removeFromList();
124    mNextHandle = prev->mNextHandle;
125    if (mNextHandle) {
126        mNextHandle->mPreviousHandle = this;
127    }
128    prev->mNextHandle = this;
129    mPreviousHandle = prev;
130}
131
132void AnimationHandle::removeFromList() {
133    if (mPreviousHandle) {
134        mPreviousHandle->mNextHandle = mNextHandle;
135    }
136    if (mNextHandle) {
137        mNextHandle->mPreviousHandle = mPreviousHandle;
138    }
139    mPreviousHandle = NULL;
140    mNextHandle = NULL;
141}
142
143} /* namespace uirenderer */
144} /* namespace android */
145