#include "config.h"
#if USE(ACCELERATED_COMPOSITING)
#include "GraphicsLayer.h"
#include "FloatPoint.h"
#include "RotateTransformOperation.h"
#include "TextStream.h"
#include <wtf/text/CString.h>
#include <wtf/text/WTFString.h>
#ifndef NDEBUG
#include <stdio.h>
#endif
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();
m_values.insert(i + 1, value);
return;
}
if (curValue->keyTime() > value->keyTime()) {
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_acceleratesDrawing(false)
, m_paintingPhase(GraphicsLayerPaintAll)
, 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 (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);
}
String GraphicsLayer::animationNameForTransition(AnimatedPropertyID property)
{
String id = "-|transition";
id.append(static_cast<char>(property));
id.append('-');
return id;
}
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); else
setDebugBorder(Color(255, 0, 0, 204), 2.0f); } else if (masksToBounds()) {
setDebugBorder(Color(128, 255, 255, 178), 2.0f); if (GraphicsLayer::showDebugBorders())
setDebugBackgroundColor(Color(128, 255, 255, 52));
} else
setDebugBorder(Color(255, 255, 0, 204), 2.0f); }
}
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)
{
accumulatedOpacity *= m_opacity;
setOpacityInternal(accumulatedOpacity);
if (preserves3D()) {
size_t numChildren = children().size();
for (size_t i = 0; i < numChildren; ++i)
children()[i]->distributeOpacity(accumulatedOpacity);
}
}
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;
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);
for (size_t i = firstIndex + 1; i < valueList.size(); ++i) {
const TransformOperations* val = operationsAt(valueList, i);
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;
}
}
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 (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, LayerTreeAsTextBehavior behavior) const
{
writeIndent(ts, indent);
ts << "(" << "GraphicsLayer";
if (behavior & LayerTreeAsTextDebug) {
ts << " " << static_cast<void*>(const_cast<GraphicsLayer*>(this));
ts << " \"" << m_name << "\"";
}
ts << "\n";
dumpProperties(ts, indent, behavior);
writeIndent(ts, indent);
ts << ")\n";
}
void GraphicsLayer::dumpProperties(TextStream& ts, int indent, LayerTreeAsTextBehavior behavior) const
{
if (m_position != FloatPoint()) {
writeIndent(ts, indent + 1);
ts << "(position " << m_position.x() << " " << m_position.y() << ")\n";
}
if (m_anchorPoint != FloatPoint3D(0.5f, 0.5f, 0)) {
writeIndent(ts, indent + 1);
ts << "(anchor " << m_anchorPoint.x() << " " << m_anchorPoint.y() << ")\n";
}
if (m_size != IntSize()) {
writeIndent(ts, indent + 1);
ts << "(bounds " << m_size.width() << " " << m_size.height() << ")\n";
}
if (m_opacity != 1) {
writeIndent(ts, indent + 1);
ts << "(opacity " << m_opacity << ")\n";
}
if (m_usingTiledLayer) {
writeIndent(ts, indent + 1);
ts << "(usingTiledLayer " << m_usingTiledLayer << ")\n";
}
if (m_preserves3D) {
writeIndent(ts, indent + 1);
ts << "(preserves3D " << m_preserves3D << ")\n";
}
if (m_drawsContent) {
writeIndent(ts, indent + 1);
ts << "(drawsContent " << m_drawsContent << ")\n";
}
if (!m_backfaceVisibility) {
writeIndent(ts, indent + 1);
ts << "(backfaceVisibility " << (m_backfaceVisibility ? "visible" : "hidden") << ")\n";
}
if (behavior & LayerTreeAsTextDebug) {
writeIndent(ts, indent + 1);
ts << "(";
if (m_client)
ts << "client " << static_cast<void*>(m_client);
else
ts << "no client";
ts << ")\n";
}
if (m_backgroundColorSet) {
writeIndent(ts, indent + 1);
ts << "(backgroundColor " << m_backgroundColor.nameForRenderTreeAsText() << ")\n";
}
if (!m_transform.isIdentity()) {
writeIndent(ts, indent + 1);
ts << "(transform ";
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() << "])\n";
}
if (parent() && !m_childrenTransform.isIdentity()) {
writeIndent(ts, indent + 1);
ts << "(childrenTransform ";
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() << "])\n";
}
if (m_replicaLayer) {
writeIndent(ts, indent + 1);
ts << "(replica layer";
if (behavior & LayerTreeAsTextDebug)
ts << " " << m_replicaLayer;
ts << ")\n";
m_replicaLayer->dumpLayer(ts, indent + 2, behavior);
}
if (m_replicatedLayer) {
writeIndent(ts, indent + 1);
ts << "(replicated layer";
if (behavior & LayerTreeAsTextDebug)
ts << " " << m_replicatedLayer;;
ts << ")\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, behavior);
writeIndent(ts, indent + 1);
ts << ")\n";
}
}
String GraphicsLayer::layerTreeAsText(LayerTreeAsTextBehavior behavior) const
{
TextStream ts;
dumpLayer(ts, 0, behavior);
return ts.release();
}
}
#ifndef NDEBUG
void showGraphicsLayerTree(const WebCore::GraphicsLayer* layer)
{
if (!layer)
return;
WTF::String output = layer->layerTreeAsText(LayerTreeAsTextDebug);
fprintf(stderr, "%s\n", output.utf8().data());
}
#endif
#endif // USE(ACCELERATED_COMPOSITING)