grab from latest android
git-svn-id: http://skia.googlecode.com/svn/trunk@27 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/animator/SkAnimateActive.cpp b/src/animator/SkAnimateActive.cpp
new file mode 100644
index 0000000..4ee7ded
--- /dev/null
+++ b/src/animator/SkAnimateActive.cpp
@@ -0,0 +1,509 @@
+/* libs/graphics/animator/SkAnimateActive.cpp
+**
+** Copyright 2006, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+** http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#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];
+ if (state.fMode == SkApply::kMode_immediate || state.fMode == SkApply::kMode_create)
+ duration = state.fSteps ? state.fSteps * SK_MSec1 : 1;
+// else if (state.fMode == 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;
+// }
+ 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);
+ 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);
+ 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;
+}
+
+