| /* |
| * Copyright (C) 2009 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| |
| #if USE(ACCELERATED_COMPOSITING) |
| |
| #include "GraphicsLayer.h" |
| |
| #include "FloatPoint.h" |
| #include "RotateTransformOperation.h" |
| #include "TextStream.h" |
| |
| namespace WebCore { |
| |
| void KeyframeValueList::insert(const AnimationValue* value) |
| { |
| for (size_t i = 0; i < m_values.size(); ++i) { |
| const AnimationValue* curValue = m_values[i]; |
| if (curValue->keyTime() == value->keyTime()) { |
| ASSERT_NOT_REACHED(); |
| // insert after |
| m_values.insert(i + 1, value); |
| return; |
| } |
| if (curValue->keyTime() > value->keyTime()) { |
| // insert before |
| m_values.insert(i, value); |
| return; |
| } |
| } |
| |
| m_values.append(value); |
| } |
| |
| GraphicsLayer::GraphicsLayer(GraphicsLayerClient* client) |
| : m_client(client) |
| , m_anchorPoint(0.5f, 0.5f, 0) |
| , m_opacity(1) |
| , m_zPosition(0) |
| , m_backgroundColorSet(false) |
| , m_contentsOpaque(false) |
| , m_preserves3D(false) |
| , m_backfaceVisibility(true) |
| , m_usingTiledLayer(false) |
| , m_masksToBounds(false) |
| , m_drawsContent(false) |
| , m_paintingPhase(GraphicsLayerPaintAll) |
| , m_geometryOrientation(CompositingCoordinatesTopDown) |
| , m_contentsOrientation(CompositingCoordinatesTopDown) |
| , m_parent(0) |
| , m_maskLayer(0) |
| , m_replicaLayer(0) |
| , m_replicatedLayer(0) |
| , m_repaintCount(0) |
| { |
| } |
| |
| GraphicsLayer::~GraphicsLayer() |
| { |
| removeAllChildren(); |
| removeFromParent(); |
| } |
| |
| bool GraphicsLayer::hasAncestor(GraphicsLayer* ancestor) const |
| { |
| for (GraphicsLayer* curr = parent(); curr; curr = curr->parent()) { |
| if (curr == ancestor) |
| return true; |
| } |
| |
| return false; |
| } |
| |
| bool GraphicsLayer::setChildren(const Vector<GraphicsLayer*>& newChildren) |
| { |
| // If the contents of the arrays are the same, nothing to do. |
| if (newChildren == m_children) |
| return false; |
| |
| removeAllChildren(); |
| |
| size_t listSize = newChildren.size(); |
| for (size_t i = 0; i < listSize; ++i) |
| addChild(newChildren[i]); |
| |
| return true; |
| } |
| |
| void GraphicsLayer::addChild(GraphicsLayer* childLayer) |
| { |
| ASSERT(childLayer != this); |
| |
| if (childLayer->parent()) |
| childLayer->removeFromParent(); |
| |
| childLayer->setParent(this); |
| m_children.append(childLayer); |
| } |
| |
| void GraphicsLayer::addChildAtIndex(GraphicsLayer* childLayer, int index) |
| { |
| ASSERT(childLayer != this); |
| |
| if (childLayer->parent()) |
| childLayer->removeFromParent(); |
| |
| childLayer->setParent(this); |
| m_children.insert(index, childLayer); |
| } |
| |
| void GraphicsLayer::addChildBelow(GraphicsLayer* childLayer, GraphicsLayer* sibling) |
| { |
| ASSERT(childLayer != this); |
| childLayer->removeFromParent(); |
| |
| bool found = false; |
| for (unsigned i = 0; i < m_children.size(); i++) { |
| if (sibling == m_children[i]) { |
| m_children.insert(i, childLayer); |
| found = true; |
| break; |
| } |
| } |
| |
| childLayer->setParent(this); |
| |
| if (!found) |
| m_children.append(childLayer); |
| } |
| |
| void GraphicsLayer::addChildAbove(GraphicsLayer* childLayer, GraphicsLayer* sibling) |
| { |
| childLayer->removeFromParent(); |
| ASSERT(childLayer != this); |
| |
| bool found = false; |
| for (unsigned i = 0; i < m_children.size(); i++) { |
| if (sibling == m_children[i]) { |
| m_children.insert(i+1, childLayer); |
| found = true; |
| break; |
| } |
| } |
| |
| childLayer->setParent(this); |
| |
| if (!found) |
| m_children.append(childLayer); |
| } |
| |
| bool GraphicsLayer::replaceChild(GraphicsLayer* oldChild, GraphicsLayer* newChild) |
| { |
| ASSERT(!newChild->parent()); |
| bool found = false; |
| for (unsigned i = 0; i < m_children.size(); i++) { |
| if (oldChild == m_children[i]) { |
| m_children[i] = newChild; |
| found = true; |
| break; |
| } |
| } |
| if (found) { |
| oldChild->setParent(0); |
| |
| newChild->removeFromParent(); |
| newChild->setParent(this); |
| return true; |
| } |
| return false; |
| } |
| |
| void GraphicsLayer::removeAllChildren() |
| { |
| while (m_children.size()) { |
| GraphicsLayer* curLayer = m_children[0]; |
| ASSERT(curLayer->parent()); |
| curLayer->removeFromParent(); |
| } |
| } |
| |
| void GraphicsLayer::removeFromParent() |
| { |
| if (m_parent) { |
| unsigned i; |
| for (i = 0; i < m_parent->m_children.size(); i++) { |
| if (this == m_parent->m_children[i]) { |
| m_parent->m_children.remove(i); |
| break; |
| } |
| } |
| |
| setParent(0); |
| } |
| } |
| |
| void GraphicsLayer::setReplicatedByLayer(GraphicsLayer* layer) |
| { |
| if (layer) |
| layer->setReplicatedLayer(this); |
| |
| m_replicaLayer = layer; |
| } |
| |
| void GraphicsLayer::setBackgroundColor(const Color& color) |
| { |
| m_backgroundColor = color; |
| m_backgroundColorSet = true; |
| } |
| |
| void GraphicsLayer::clearBackgroundColor() |
| { |
| m_backgroundColor = Color(); |
| m_backgroundColorSet = false; |
| } |
| |
| void GraphicsLayer::paintGraphicsLayerContents(GraphicsContext& context, const IntRect& clip) |
| { |
| if (m_client) |
| m_client->paintContents(this, context, m_paintingPhase, clip); |
| } |
| |
| void GraphicsLayer::suspendAnimations(double) |
| { |
| } |
| |
| void GraphicsLayer::resumeAnimations() |
| { |
| } |
| |
| void GraphicsLayer::updateDebugIndicators() |
| { |
| if (GraphicsLayer::showDebugBorders()) { |
| if (drawsContent()) { |
| if (m_usingTiledLayer) |
| setDebugBorder(Color(0, 255, 0, 204), 2.0f); // tiled layer: green |
| else |
| setDebugBorder(Color(255, 0, 0, 204), 2.0f); // normal layer: red |
| } else if (masksToBounds()) { |
| setDebugBorder(Color(128, 255, 255, 178), 2.0f); // masking layer: pale blue |
| if (GraphicsLayer::showDebugBorders()) |
| setDebugBackgroundColor(Color(128, 255, 255, 52)); |
| } else |
| setDebugBorder(Color(255, 255, 0, 204), 2.0f); // container: yellow |
| } |
| } |
| |
| void GraphicsLayer::setZPosition(float position) |
| { |
| m_zPosition = position; |
| } |
| |
| float GraphicsLayer::accumulatedOpacity() const |
| { |
| if (!preserves3D()) |
| return 1; |
| |
| return m_opacity * (parent() ? parent()->accumulatedOpacity() : 1); |
| } |
| |
| void GraphicsLayer::distributeOpacity(float accumulatedOpacity) |
| { |
| // If this is a transform layer we need to distribute our opacity to all our children |
| |
| // Incoming accumulatedOpacity is the contribution from our parent(s). We mutiply this by our own |
| // opacity to get the total contribution |
| accumulatedOpacity *= m_opacity; |
| |
| setOpacityInternal(accumulatedOpacity); |
| |
| if (preserves3D()) { |
| size_t numChildren = children().size(); |
| for (size_t i = 0; i < numChildren; ++i) |
| children()[i]->distributeOpacity(accumulatedOpacity); |
| } |
| } |
| |
| // An "invalid" list is one whose functions don't match, and therefore has to be animated as a Matrix |
| // The hasBigRotation flag will always return false if isValid is false. Otherwise hasBigRotation is |
| // true if the rotation between any two keyframes is >= 180 degrees. |
| |
| static inline const TransformOperations* operationsAt(const KeyframeValueList& valueList, size_t index) |
| { |
| return static_cast<const TransformAnimationValue*>(valueList.at(index))->value(); |
| } |
| |
| void GraphicsLayer::fetchTransformOperationList(const KeyframeValueList& valueList, TransformOperationList& list, bool& isValid, bool& hasBigRotation) |
| { |
| ASSERT(valueList.property() == AnimatedPropertyWebkitTransform); |
| |
| list.clear(); |
| isValid = false; |
| hasBigRotation = false; |
| |
| if (valueList.size() < 2) |
| return; |
| |
| // Empty transforms match anything, so find the first non-empty entry as the reference. |
| size_t firstIndex = 0; |
| for ( ; firstIndex < valueList.size(); ++firstIndex) { |
| if (operationsAt(valueList, firstIndex)->operations().size() > 0) |
| break; |
| } |
| |
| if (firstIndex >= valueList.size()) |
| return; |
| |
| const TransformOperations* firstVal = operationsAt(valueList, firstIndex); |
| |
| // See if the keyframes are valid. |
| for (size_t i = firstIndex + 1; i < valueList.size(); ++i) { |
| const TransformOperations* val = operationsAt(valueList, i); |
| |
| // a null transform matches anything |
| if (val->operations().isEmpty()) |
| continue; |
| |
| if (firstVal->operations().size() != val->operations().size()) |
| return; |
| |
| for (size_t j = 0; j < firstVal->operations().size(); ++j) { |
| if (!firstVal->operations().at(j)->isSameType(*val->operations().at(j))) |
| return; |
| } |
| } |
| |
| // Keyframes are valid, fill in the list. |
| isValid = true; |
| |
| double lastRotAngle = 0.0; |
| double maxRotAngle = -1.0; |
| |
| list.resize(firstVal->operations().size()); |
| for (size_t j = 0; j < firstVal->operations().size(); ++j) { |
| TransformOperation::OperationType type = firstVal->operations().at(j)->getOperationType(); |
| list[j] = type; |
| |
| // if this is a rotation entry, we need to see if any angle differences are >= 180 deg |
| if (type == TransformOperation::ROTATE_X || |
| type == TransformOperation::ROTATE_Y || |
| type == TransformOperation::ROTATE_Z || |
| type == TransformOperation::ROTATE_3D) { |
| lastRotAngle = static_cast<RotateTransformOperation*>(firstVal->operations().at(j).get())->angle(); |
| |
| if (maxRotAngle < 0) |
| maxRotAngle = fabs(lastRotAngle); |
| |
| for (size_t i = firstIndex + 1; i < valueList.size(); ++i) { |
| const TransformOperations* val = operationsAt(valueList, i); |
| double rotAngle = val->operations().isEmpty() ? 0 : (static_cast<RotateTransformOperation*>(val->operations().at(j).get())->angle()); |
| double diffAngle = fabs(rotAngle - lastRotAngle); |
| if (diffAngle > maxRotAngle) |
| maxRotAngle = diffAngle; |
| lastRotAngle = rotAngle; |
| } |
| } |
| } |
| |
| hasBigRotation = maxRotAngle >= 180.0; |
| } |
| |
| |
| static void writeIndent(TextStream& ts, int indent) |
| { |
| for (int i = 0; i != indent; ++i) |
| ts << " "; |
| } |
| |
| void GraphicsLayer::dumpLayer(TextStream& ts, int indent) const |
| { |
| writeIndent(ts, indent); |
| ts << "(" << "GraphicsLayer" << " " << static_cast<void*>(const_cast<GraphicsLayer*>(this)); |
| ts << " \"" << m_name << "\"\n"; |
| dumpProperties(ts, indent); |
| writeIndent(ts, indent); |
| ts << ")\n"; |
| } |
| |
| void GraphicsLayer::dumpProperties(TextStream& ts, int indent) const |
| { |
| writeIndent(ts, indent + 1); |
| ts << "(position " << m_position.x() << " " << m_position.y() << ")\n"; |
| |
| writeIndent(ts, indent + 1); |
| ts << "(anchor " << m_anchorPoint.x() << " " << m_anchorPoint.y() << ")\n"; |
| |
| writeIndent(ts, indent + 1); |
| ts << "(bounds " << m_size.width() << " " << m_size.height() << ")\n"; |
| |
| writeIndent(ts, indent + 1); |
| ts << "(opacity " << m_opacity << ")\n"; |
| |
| writeIndent(ts, indent + 1); |
| ts << "(usingTiledLayer " << m_usingTiledLayer << ")\n"; |
| |
| writeIndent(ts, indent + 1); |
| ts << "(m_preserves3D " << m_preserves3D << ")\n"; |
| |
| writeIndent(ts, indent + 1); |
| ts << "(drawsContent " << m_drawsContent << ")\n"; |
| |
| writeIndent(ts, indent + 1); |
| ts << "(m_backfaceVisibility " << (m_backfaceVisibility ? "visible" : "hidden") << ")\n"; |
| |
| writeIndent(ts, indent + 1); |
| ts << "(client "; |
| if (m_client) |
| ts << static_cast<void*>(m_client); |
| else |
| ts << "none"; |
| ts << ")\n"; |
| |
| writeIndent(ts, indent + 1); |
| ts << "(backgroundColor "; |
| if (!m_backgroundColorSet) |
| ts << "none"; |
| else |
| ts << m_backgroundColor.name(); |
| ts << ")\n"; |
| |
| writeIndent(ts, indent + 1); |
| ts << "(transform "; |
| if (m_transform.isIdentity()) |
| ts << "identity"; |
| else { |
| ts << "[" << m_transform.m11() << " " << m_transform.m12() << " " << m_transform.m13() << " " << m_transform.m14() << "] "; |
| ts << "[" << m_transform.m21() << " " << m_transform.m22() << " " << m_transform.m23() << " " << m_transform.m24() << "] "; |
| ts << "[" << m_transform.m31() << " " << m_transform.m32() << " " << m_transform.m33() << " " << m_transform.m34() << "] "; |
| ts << "[" << m_transform.m41() << " " << m_transform.m42() << " " << m_transform.m43() << " " << m_transform.m44() << "]"; |
| } |
| ts << ")\n"; |
| |
| writeIndent(ts, indent + 1); |
| ts << "(childrenTransform "; |
| if (m_childrenTransform.isIdentity()) |
| ts << "identity"; |
| else { |
| ts << "[" << m_childrenTransform.m11() << " " << m_childrenTransform.m12() << " " << m_childrenTransform.m13() << " " << m_childrenTransform.m14() << "] "; |
| ts << "[" << m_childrenTransform.m21() << " " << m_childrenTransform.m22() << " " << m_childrenTransform.m23() << " " << m_childrenTransform.m24() << "] "; |
| ts << "[" << m_childrenTransform.m31() << " " << m_childrenTransform.m32() << " " << m_childrenTransform.m33() << " " << m_childrenTransform.m34() << "] "; |
| ts << "[" << m_childrenTransform.m41() << " " << m_childrenTransform.m42() << " " << m_childrenTransform.m43() << " " << m_childrenTransform.m44() << "]"; |
| } |
| ts << ")\n"; |
| |
| if (m_replicaLayer) { |
| writeIndent(ts, indent + 1); |
| ts << "(replica layer " << m_replicaLayer << ")\n"; |
| m_replicaLayer->dumpLayer(ts, indent+2); |
| } |
| |
| if (m_replicatedLayer) { |
| writeIndent(ts, indent + 1); |
| ts << "(replicated layer " << m_replicatedLayer << ")\n"; |
| } |
| |
| if (m_children.size()) { |
| writeIndent(ts, indent + 1); |
| ts << "(children " << m_children.size() << "\n"; |
| |
| unsigned i; |
| for (i = 0; i < m_children.size(); i++) |
| m_children[i]->dumpLayer(ts, indent+2); |
| writeIndent(ts, indent + 1); |
| ts << ")\n"; |
| } |
| } |
| |
| } // namespace WebCore |
| |
| #endif // USE(ACCELERATED_COMPOSITING) |
