/*
* Copyright 2006 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkAnimateActive.h"
#include "SkAnimateBase.h"
#include "SkAnimateMaker.h"
#include "SkAnimateSet.h"
#include "SkDrawGroup.h"
#ifdef SK_DEBUG
#include "SkTime.h"
#endif
// SkActive holds array of interpolators
SkActive::SkActive(SkApply& apply, SkAnimateMaker& maker) : fApply(apply),
fMaxTime(0), fMaker(maker), fDrawIndex(0), fDrawMax(0) {
}
void SkActive::init()
{
fAnimators = fApply.fAnimators;
int animators = fAnimators.count();
fInterpolators.setCount(animators);
memset(fInterpolators.begin(), 0, animators * sizeof(SkOperandInterpolator*));
fState.setCount(animators);
int index;
for (index = 0; index < animators; index++)
fInterpolators[index] = SkNEW(SkOperandInterpolator);
initState(&fApply, 0);
// for (index = 0; index < animators; index++)
// fState[index].bumpSave();
SkASSERT(fInterpolators.count() == fAnimators.count());
}
SkActive::~SkActive() {
int index;
for (index = 0; index < fSaveRestore.count(); index++)
delete[] fSaveRestore[index];
for (index = 0; index < fSaveInterpolators.count(); index++)
delete[] fSaveInterpolators[index];
for (index = 0; index < fInterpolators.count(); index++)
delete fInterpolators[index];
}
void SkActive::advance() {
if (fDrawMax < fDrawIndex)
fDrawMax = fDrawIndex;
fDrawIndex += fAnimators.count();
}
void SkActive::append(SkApply* apply) {
int oldCount = fAnimators.count();
SkTDAnimateArray& animates = apply->fAnimators;
int newCount = animates.count();
int index;
int total = oldCount + newCount;
if (total == 0)
return;
fInterpolators.setCount(total);
memset(&fInterpolators.begin()[oldCount], 0, newCount * sizeof(SkOperandInterpolator*));
for (index = oldCount; index < total; index++)
fInterpolators[index] = SkNEW(SkOperandInterpolator);
fAnimators.setCount(total);
memcpy(&fAnimators[oldCount], animates.begin(), sizeof(fAnimators[0]) *
newCount);
fState.setCount(total);
initState(apply, oldCount);
SkASSERT(fApply.scope == apply->scope);
for (index = 0; index < newCount; index++) {
SkAnimateBase* test = animates[index];
// SkASSERT(fApply.scope == test->fTarget || fApply.scope->contains(test->fTarget));
SkActive::SkState& testState = fState[oldCount + index];
for (int inner = 0; inner < oldCount; inner++) {
SkAnimateBase* oldGuard = fAnimators[inner];
SkActive::SkState& oldState = fState[inner];
if (oldGuard->fTarget == test->fTarget && oldGuard->fFieldInfo == test->fFieldInfo &&
testState.fBegin == oldState.fBegin) {
delete fInterpolators[inner];
fInterpolators.remove(inner);
fAnimators.remove(inner);
testState.fSave = oldState.fSave;
if (oldState.fUnpostedEndEvent) {
// SkDEBUGF(("%8x %8x active append: post on end\n", this, oldGuard));
fMaker.postOnEnd(oldGuard, oldState.fBegin + oldState.fDuration);
}
fState.remove(inner);
if (fApply.restore) {
int saveIndex = fSaveRestore.count();
SkASSERT(fSaveInterpolators.count() == saveIndex);
saveIndex += inner;
do {
saveIndex -= oldCount;
delete[] fSaveRestore[saveIndex];
fSaveRestore.remove(saveIndex);
delete[] fSaveInterpolators[saveIndex];
fSaveInterpolators.remove(saveIndex);
} while (saveIndex > 0);
}
oldCount--;
break;
}
}
}
// total = oldCount + newCount;
// for (index = oldCount; index < total; index++)
// fState[index].bumpSave();
SkASSERT(fInterpolators.count() == fAnimators.count());
}
void SkActive::appendSave(int oldCount) {
SkASSERT(fDrawMax == 0); // if true, we can optimize below quite a bit
int newCount = fAnimators.count();
int saveIndex = fSaveRestore.count();
SkASSERT(fSaveInterpolators.count() == saveIndex);
int records = saveIndex / oldCount;
int newTotal = records * newCount;
fSaveRestore.setCount(newTotal);
do {
saveIndex -= oldCount;
newTotal -= newCount;
SkASSERT(saveIndex >= 0);
SkASSERT(newTotal >= 0);
memmove(&fSaveRestore[newTotal], &fSaveRestore[saveIndex], oldCount);
memset(&fSaveRestore[newTotal + oldCount], 0,
sizeof(fSaveRestore[0]) * (newCount - oldCount));
memmove(&fSaveInterpolators[newTotal],
&fSaveInterpolators[saveIndex], oldCount);
memset(&fSaveInterpolators[newTotal + oldCount], 0,
sizeof(fSaveRestore[0]) * (newCount - oldCount));
} while (saveIndex > 0);
SkASSERT(newTotal == 0);
}
void SkActive::calcDurations(int index)
{
SkAnimateBase* animate = fAnimators[index];
SkMSec duration = animate->dur;
SkState& state = fState[index];
switch (state.fMode) {
case SkApply::kMode_immediate:
case SkApply::kMode_create:
duration = state.fSteps ? state.fSteps * SK_MSec1 : 1;
break;
// case SkApply::kMode_hold: {
// int entries = animate->entries();
// SkScriptValue value;
// value.fOperand = animate->getValues()[entries - 1];
// value.fType = animate->getValuesType();
// bool result = SkScriptEngine::ConvertTo(NULL, SkType_Int, &value);
// SkASSERT(result);
// duration = value.fOperand.fS32 * SK_MSec1;
// break;
// }
}
state.fDuration = duration;
SkMSec maxTime = state.fBegin + duration;
if (fMaxTime < maxTime)
fMaxTime = maxTime;
}
void SkActive::create(SkDrawable* drawable, SkMSec time) {
fApply.fLastTime = time;
fApply.refresh(fMaker);
for (int index = 0; index < fAnimators.count(); index++) {
SkAnimateBase* animate = fAnimators[index];
SkOperandInterpolator& interpolator = *fInterpolators[index];
int count = animate->components();
if (animate->formula.size() > 0) {
SkTDOperandArray values;
values.setCount(count);
SkDEBUGCODE(bool success = ) animate->fFieldInfo->setValue(fMaker, &values, 0, 0, NULL,
animate->getValuesType(), animate->formula);
SkASSERT(success);
fApply.applyValues(index, values.begin(), count, animate->getValuesType(), time);
} else {
SkAutoSTMalloc<16, SkOperand> values(count);
interpolator.timeToValues(time, values.get());
fApply.applyValues(index, values.get(), count, animate->getValuesType(), time);
}
}
drawable->enable(fMaker);
SkASSERT(fAnimators.count() == fInterpolators.count());
}
bool SkActive::immediate(bool enable) {
SkMSec time = 0;
bool result = false;
SkDrawable* drawable = fApply.scope;
SkMSec final = fMaxTime;
do {
bool applied = fAnimators.count() == 0;
fApply.fLastTime = time;
fApply.refresh(fMaker);
for (int index = 0; index < fAnimators.count(); index++) {
SkAnimateBase* animate = fAnimators[index];
SkState& state = fState[index];
if (state.fMode != SkApply::kMode_immediate)
continue;
if (state.fBegin > time)
continue;
if (time > state.fBegin + state.fDuration)
continue;
applied = true;
SkOperandInterpolator& interpolator = *fInterpolators[index];
int count = animate->components();
if (animate->formula.size() > 0) {
SkTDOperandArray values;
values.setCount(count);
SkDEBUGCODE(bool success = ) animate->fFieldInfo->setValue(fMaker, &values, 0, 0, NULL,
animate->getValuesType(), animate->formula);
SkASSERT(success);
fApply.applyValues(index, values.begin(), count, animate->getValuesType(), time);
} else {
SkAutoSTMalloc<16, SkOperand> values(count);
interpolator.timeToValues(time, values.get());
fApply.applyValues(index, values.get(), count, animate->getValuesType(), time);
}
}
if (enable)
drawable->enable(fMaker);
else if (applied)
result |= drawable->draw(fMaker);
time += SK_MSec1;
} while (time <= final);
return result;
}
void SkActive::fixInterpolator(SkBool save) {
int animators = fAnimators.count();
for (int index = 0; index < animators; index++) {
SkAnimateBase* animate = fAnimators[index];
if (save) { // saved slots increased
animate->refresh(fMaker);
SkOperand* values = animate->getValues();
setInterpolator(index, values);
saveInterpolatorValues(index);
} else
restoreInterpolatorValues(index);
}
}
SkMSec SkActive::getTime(SkMSec inTime, int animatorIndex) {
fState[animatorIndex].fTicks = inTime;
return inTime - fState[animatorIndex].fStartTime;
}
bool SkActive::initializeSave() {
int animators = fAnimators.count();
int activeTotal = fDrawIndex + animators;
int oldCount = fSaveRestore.count();
if (oldCount < activeTotal) {
fSaveRestore.setCount(activeTotal);
memset(&fSaveRestore[oldCount], 0, sizeof(fSaveRestore[0]) * (activeTotal - oldCount));
SkASSERT(fSaveInterpolators.count() == oldCount);
fSaveInterpolators.setCount(activeTotal);
memset(&fSaveInterpolators[oldCount], 0,
sizeof(fSaveInterpolators[0]) * (activeTotal - oldCount));
return true;
}
return false;
}
void SkActive::initState(SkApply* apply, int offset) {
int count = fState.count();
for (int index = offset; index < count; index++) {
SkState& state = fState[index];
SkAnimateBase* animate = fAnimators[index];
#if 0 // def SK_DEBUG
if (animate->fHasEndEvent)
SkDebugf("%8x %8x active initState:\n", this, animate);
#endif
SkOperand* from = animate->getValues();
state.fStartTime = state.fBegin = apply->begin + animate->begin;
state.fMode = apply->mode;
state.fTransition = apply->transition;
#if 0
state.fPickup = (SkBool8) apply->pickup;
#endif
state.fRestore = (SkBool8) apply->restore;
state.fSave = apply->begin;
state.fStarted = false;
state.fSteps = apply->steps;
state.fTicks = 0;
state.fUnpostedEndEvent = (SkBool8) animate->fHasEndEvent;
calcDurations(index);
setInterpolator(index, from);
}
if (count == 0 && (apply->mode == SkApply::kMode_immediate || apply->mode == SkApply::kMode_create))
fMaxTime = apply->begin + apply->steps * SK_MSec1;
}
void SkActive::pickUp(SkActive* existing) {
SkTDOperandArray existingValues;
for (int index = 0; index < fAnimators.count(); index++) {
SkAnimateBase* animate = fAnimators[index];
SkASSERT(animate->getValuesType() == SkType_Float);
int components = animate->components();
SkOperand* from = animate->getValues();
SkOperand* to = &from[animate->components()];
existingValues.setCount(components);
existing->fInterpolators[index]->timeToValues(
existing->fState[index].fTicks - existing->fState[index].fStartTime, existingValues.begin());
SkScalar originalSum = 0;
SkScalar workingSum = 0;
for (int cIndex = 0; cIndex < components; cIndex++) {
SkScalar delta = to[cIndex].fScalar - from[cIndex].fScalar;
originalSum += SkScalarMul(delta, delta);
delta = to[cIndex].fScalar - existingValues[cIndex].fScalar;
workingSum += SkScalarMul(delta, delta);
}
if (workingSum < originalSum) {
SkScalar originalDistance = SkScalarSqrt(originalSum);
SkScalar workingDistance = SkScalarSqrt(workingSum);
existing->fState[index].fDuration = (SkMSec) SkScalarMulDiv(fState[index].fDuration,
workingDistance, originalDistance);
}
fInterpolators[index]->reset(components, 2, SkType_Float);
fInterpolators[index]->setKeyFrame(0, 0, existingValues.begin(), animate->blend[0]);
fInterpolators[index]->setKeyFrame(1, fState[index].fDuration, to, animate->blend[0]);
}
}
void SkActive::resetInterpolators() {
int animators = fAnimators.count();
for (int index = 0; index < animators; index++) {
SkAnimateBase* animate = fAnimators[index];
SkOperand* values = animate->getValues();
setInterpolator(index, values);
}
}
void SkActive::resetState() {
fDrawIndex = 0;
int count = fState.count();
for (int index = 0; index < count; index++) {
SkState& state = fState[index];
SkAnimateBase* animate = fAnimators[index];
#if 0 // def SK_DEBUG
if (animate->fHasEndEvent)
SkDebugf("%8x %8x active resetState: has end event\n", this, animate);
#endif
state.fStartTime = state.fBegin = fApply.begin + animate->begin;
state.fStarted = false;
state.fTicks = 0;
}
}
void SkActive::restoreInterpolatorValues(int index) {
SkOperandInterpolator& interpolator = *fInterpolators[index];
index += fDrawIndex ;
int count = interpolator.getValuesCount();
memcpy(interpolator.getValues(), fSaveInterpolators[index], count * sizeof(SkOperand));
}
void SkActive::saveInterpolatorValues(int index) {
SkOperandInterpolator& interpolator = *fInterpolators[index];
index += fDrawIndex ;
int count = interpolator.getValuesCount();
SkOperand* cache = new SkOperand[count]; // this should use sk_malloc/sk_free since SkOperand does not have a constructor/destructor
fSaveInterpolators[index] = cache;
memcpy(cache, interpolator.getValues(), count * sizeof(SkOperand));
}
void SkActive::setInterpolator(int index, SkOperand* from) {
if (from == NULL) // legitimate for set string
return;
SkAnimateBase* animate = fAnimators[index];
int entries = animate->entries();
SkASSERT(entries > 0);
SkMSec duration = fState[index].fDuration;
int components = animate->components();
SkOperandInterpolator& interpolator = *fInterpolators[index];
interpolator.reset(components, entries == 1 ? 2 : entries, animate->getValuesType());
interpolator.setMirror(SkToBool(animate->fMirror));
interpolator.setReset(SkToBool(animate->fReset));
interpolator.setRepeatCount(animate->repeat);
if (entries == 1) {
interpolator.setKeyFrame(0, 0, from, animate->blend[0]);
interpolator.setKeyFrame(1, duration, from, animate->blend[0]);
return;
}
for (int entry = 0; entry < entries; entry++) {
int blendIndex = SkMin32(animate->blend.count() - 1, entry);
interpolator.setKeyFrame(entry, entry * duration / (entries - 1), from,
animate->blend[blendIndex]);
from += components;
}
}
void SkActive::setSteps(int steps) {
int count = fState.count();
fMaxTime = 0;
for (int index = 0; index < count; index++) {
SkState& state = fState[index];
state.fSteps = steps;
calcDurations(index);
}
}
void SkActive::start() {
int count = fState.count();
SkASSERT(count == fAnimators.count());
SkASSERT(count == fInterpolators.count());
for (int index = 0; index < count; index++) {
SkState& state = fState[index];
if (state.fStarted)
continue;
state.fStarted = true;
#if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING
SkString debugOut;
SkMSec time = fMaker.getAppTime();
debugOut.appendS32(time - fMaker.fDebugTimeBase);
debugOut.append(" active start adjust delay id=");
debugOut.append(fApply._id);
debugOut.append("; ");
debugOut.append(fAnimators[index]->_id);
debugOut.append("=");
debugOut.appendS32(fAnimators[index]->fStart - fMaker.fDebugTimeBase);
debugOut.append(":");
debugOut.appendS32(state.fStartTime);
#endif
if (state.fStartTime > 0) {
SkMSec future = fAnimators[index]->fStart + state.fStartTime;
if (future > fMaker.fEnableTime)
fMaker.notifyInvalTime(future);
else
fMaker.notifyInval();
#if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING
debugOut.append(":");
debugOut.appendS32(future - fMaker.fDebugTimeBase);
#endif
}
if (state.fStartTime >= fMaker.fAdjustedStart) {
state.fStartTime -= fMaker.fAdjustedStart;
#if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING
debugOut.append(" (less adjust = ");
debugOut.appendS32(fMaker.fAdjustedStart);
#endif
}
state.fStartTime += fAnimators[index]->fStart;
#if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING
debugOut.append(") new start = ");
debugOut.appendS32(state.fStartTime - fMaker.fDebugTimeBase);
SkDebugf("%s\n", debugOut.c_str());
// SkASSERT((int) (state.fStartTime - fMaker.fDebugTimeBase) >= 0);
#endif
}
SkASSERT(fAnimators.count() == fInterpolators.count());
}
#ifdef SK_DEBUG
void SkActive::validate() {
int count = fState.count();
SkASSERT(count == fAnimators.count());
SkASSERT(count == fInterpolators.count());
for (int index = 0; index < count; index++) {
SkASSERT(fAnimators[index]);
SkASSERT(fInterpolators[index]);
// SkAnimateBase* test = fAnimators[index];
// SkASSERT(fApply.scope == test->fTarget || fApply.scope->contains(test->fTarget));
}
}
#endif
// think about this
// there should only be one animate object, not two, to go up and down
// when the apply with reverse came into play, it needs to pick up the value
// of the existing animate object then remove it from the list
// the code below should only be bumping fSave, and there shouldn't be anything
// it needs to be synchronized with
// however, if there are two animates both operating on the same field, then
// when one replaces the other, it may make sense to pick up the old value as a starting
// value for the new one somehow.
//void SkActive::SkState::bumpSave() {
// if (fMode != SkApply::kMode_hold)
// return;
// if (fTransition == SkApply::kTransition_reverse) {
// if (fSave > 0)
// fSave -= SK_MSec1;
// } else if (fSave < fDuration)
// fSave += SK_MSec1;
//}
SkMSec SkActive::SkState::getRelativeTime(SkMSec time) {
SkMSec result = time;
// if (fMode == SkApply::kMode_hold)
// result = fSave;
// else
if (fTransition == SkApply::kTransition_reverse) {
if (SkMSec_LT(fDuration, time))
result = 0;
else
result = fDuration - time;
}
return result;
}