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|
#include "config.h"
#include "LayerAndroid.h"
#if USE(ACCELERATED_COMPOSITING)
#include "AndroidAnimation.h"
#include "ClassTracker.h"
#include "DrawExtra.h"
#include "GLUtils.h"
#include "MediaLayer.h"
#include "PaintLayerOperation.h"
#include "ParseCanvas.h"
#include "SkBitmapRef.h"
#include "SkBounder.h"
#include "SkDrawFilter.h"
#include "SkPaint.h"
#include "SkPicture.h"
#include "TilesManager.h"
#include <wtf/CurrentTime.h>
#define LAYER_DEBUG // Add diagonals for debugging
#undef LAYER_DEBUG
#include <cutils/log.h>
#include <wtf/text/CString.h>
#define XLOGC(...) android_printLog(ANDROID_LOG_DEBUG, "LayerAndroid", __VA_ARGS__)
#ifdef DEBUG
#undef XLOG
#define XLOG(...) android_printLog(ANDROID_LOG_DEBUG, "LayerAndroid", __VA_ARGS__)
#else
#undef XLOG
#define XLOG(...)
#endif // DEBUG
namespace WebCore {
static int gUniqueId;
class OpacityDrawFilter : public SkDrawFilter {
public:
OpacityDrawFilter(int opacity) : m_opacity(opacity) { }
virtual bool filter(SkCanvas* canvas, SkPaint* paint, Type)
{
m_previousOpacity = paint->getAlpha();
paint->setAlpha(m_opacity);
return true;
}
virtual void restore(SkCanvas* canvas, SkPaint* paint, Type)
{
paint->setAlpha(m_previousOpacity);
}
private:
int m_opacity;
int m_previousOpacity;
};
///////////////////////////////////////////////////////////////////////////////
LayerAndroid::LayerAndroid(RenderLayer* owner) : SkLayer(),
m_haveClip(false),
m_isFixed(false),
m_isIframe(false),
m_preserves3D(false),
m_anchorPointZ(0),
m_recordingPicture(0),
m_contentsImage(0),
m_extra(0),
m_uniqueId(++gUniqueId),
m_drawingTexture(0),
m_reservedTexture(0),
m_pictureUsed(0),
m_requestSent(false),
m_scale(1),
m_lastComputeTextureSize(0),
m_owningLayer(owner)
{
m_backgroundColor = 0;
m_preserves3D = false;
m_dirty = false;
m_iframeOffset.set(0,0);
#ifdef DEBUG_COUNT
ClassTracker::instance()->increment("LayerAndroid");
#endif
}
LayerAndroid::LayerAndroid(const LayerAndroid& layer) : SkLayer(layer),
m_haveClip(layer.m_haveClip),
m_isIframe(layer.m_isIframe),
m_extra(0), // deliberately not copied
m_uniqueId(layer.m_uniqueId),
m_drawingTexture(0),
m_reservedTexture(0),
m_requestSent(false),
m_owningLayer(layer.m_owningLayer)
{
m_isFixed = layer.m_isFixed;
m_contentsImage = layer.m_contentsImage;
SkSafeRef(m_contentsImage);
m_renderLayerPos = layer.m_renderLayerPos;
m_transform = layer.m_transform;
m_backgroundColor = layer.m_backgroundColor;
m_fixedLeft = layer.m_fixedLeft;
m_fixedTop = layer.m_fixedTop;
m_fixedRight = layer.m_fixedRight;
m_fixedBottom = layer.m_fixedBottom;
m_fixedMarginLeft = layer.m_fixedMarginLeft;
m_fixedMarginTop = layer.m_fixedMarginTop;
m_fixedMarginRight = layer.m_fixedMarginRight;
m_fixedMarginBottom = layer.m_fixedMarginBottom;
m_fixedRect = layer.m_fixedRect;
m_iframeOffset = layer.m_iframeOffset;
m_recordingPicture = layer.m_recordingPicture;
SkSafeRef(m_recordingPicture);
m_preserves3D = layer.m_preserves3D;
m_anchorPointZ = layer.m_anchorPointZ;
m_drawTransform = layer.m_drawTransform;
m_childrenTransform = layer.m_childrenTransform;
m_dirty = layer.m_dirty;
m_pictureUsed = layer.m_pictureUsed;
m_scale = layer.m_scale;
m_lastComputeTextureSize = 0;
for (int i = 0; i < layer.countChildren(); i++)
addChild(layer.getChild(i)->copy())->unref();
KeyframesMap::const_iterator end = layer.m_animations.end();
for (KeyframesMap::const_iterator it = layer.m_animations.begin(); it != end; ++it) {
pair<String, int> key((it->second)->name(), (it->second)->type());
m_animations.add(key, (it->second)->copy());
}
#ifdef DEBUG_COUNT
ClassTracker::instance()->increment("LayerAndroid");
#endif
}
LayerAndroid::LayerAndroid(SkPicture* picture) : SkLayer(),
m_haveClip(false),
m_isFixed(false),
m_isIframe(false),
m_recordingPicture(picture),
m_contentsImage(0),
m_extra(0),
m_uniqueId(-1),
m_drawingTexture(0),
m_reservedTexture(0),
m_requestSent(false),
m_scale(1),
m_lastComputeTextureSize(0),
m_owningLayer(0)
{
m_backgroundColor = 0;
m_dirty = false;
SkSafeRef(m_recordingPicture);
m_iframeOffset.set(0,0);
#ifdef DEBUG_COUNT
ClassTracker::instance()->increment("LayerAndroid");
#endif
}
bool LayerAndroid::removeTexture(BackedDoubleBufferedTexture* aTexture)
{
LayerTexture* texture = static_cast<LayerTexture*>(aTexture);
android::AutoMutex lock(m_atomicSync);
bool textureReleased = true;
if (!texture) { // remove ourself from both textures
if (m_drawingTexture)
textureReleased &= m_drawingTexture->release(this);
if (m_reservedTexture &&
m_reservedTexture != m_drawingTexture)
textureReleased &= m_reservedTexture->release(this);
} else {
if (m_drawingTexture && m_drawingTexture == texture)
textureReleased &= m_drawingTexture->release(this);
if (m_reservedTexture &&
m_reservedTexture == texture &&
m_reservedTexture != m_drawingTexture)
textureReleased &= m_reservedTexture->release(this);
}
if (m_drawingTexture && m_drawingTexture->owner() != this)
m_drawingTexture = 0;
if (m_reservedTexture && m_reservedTexture->owner() != this)
m_reservedTexture = 0;
return textureReleased;
}
LayerAndroid::~LayerAndroid()
{
removeTexture(0);
removeChildren();
delete m_extra;
SkSafeUnref(m_contentsImage);
SkSafeUnref(m_recordingPicture);
m_animations.clear();
#ifdef DEBUG_COUNT
ClassTracker::instance()->decrement("LayerAndroid");
#endif
}
static int gDebugNbAnims = 0;
bool LayerAndroid::evaluateAnimations() const
{
double time = WTF::currentTime();
gDebugNbAnims = 0;
return evaluateAnimations(time);
}
bool LayerAndroid::hasAnimations() const
{
for (int i = 0; i < countChildren(); i++) {
if (getChild(i)->hasAnimations())
return true;
}
return !!m_animations.size();
}
bool LayerAndroid::evaluateAnimations(double time) const
{
bool hasRunningAnimations = false;
for (int i = 0; i < countChildren(); i++) {
if (getChild(i)->evaluateAnimations(time))
hasRunningAnimations = true;
}
KeyframesMap::const_iterator end = m_animations.end();
for (KeyframesMap::const_iterator it = m_animations.begin(); it != end; ++it) {
gDebugNbAnims++;
LayerAndroid* currentLayer = const_cast<LayerAndroid*>(this);
if ((it->second)->evaluate(currentLayer, time))
hasRunningAnimations = true;
}
return hasRunningAnimations;
}
void LayerAndroid::addAnimation(PassRefPtr<AndroidAnimation> prpAnim)
{
RefPtr<AndroidAnimation> anim = prpAnim;
pair<String, int> key(anim->name(), anim->type());
removeAnimationsForProperty(anim->type());
m_animations.add(key, anim);
}
void LayerAndroid::removeAnimationsForProperty(AnimatedPropertyID property)
{
KeyframesMap::const_iterator end = m_animations.end();
Vector<pair<String, int> > toDelete;
for (KeyframesMap::const_iterator it = m_animations.begin(); it != end; ++it) {
if ((it->second)->type() == property)
toDelete.append(it->first);
}
for (unsigned int i = 0; i < toDelete.size(); i++)
m_animations.remove(toDelete[i]);
}
void LayerAndroid::removeAnimationsForKeyframes(const String& name)
{
KeyframesMap::const_iterator end = m_animations.end();
Vector<pair<String, int> > toDelete;
for (KeyframesMap::const_iterator it = m_animations.begin(); it != end; ++it) {
if ((it->second)->name() == name)
toDelete.append(it->first);
}
for (unsigned int i = 0; i < toDelete.size(); i++)
m_animations.remove(toDelete[i]);
}
// We only use the bounding rect of the layer as mask...
// TODO: use a real mask?
void LayerAndroid::setMaskLayer(LayerAndroid* layer)
{
if (layer)
m_haveClip = true;
}
void LayerAndroid::setBackgroundColor(SkColor color)
{
m_backgroundColor = color;
}
static int gDebugChildLevel;
FloatPoint LayerAndroid::translation() const
{
TransformationMatrix::DecomposedType tDecomp;
m_transform.decompose(tDecomp);
FloatPoint p(tDecomp.translateX, tDecomp.translateY);
return p;
}
SkRect LayerAndroid::bounds() const
{
SkRect rect;
bounds(&rect);
return rect;
}
void LayerAndroid::bounds(SkRect* rect) const
{
const SkPoint& pos = this->getPosition();
const SkSize& size = this->getSize();
// The returned rect has the translation applied
// FIXME: apply the full transform to the rect,
// and fix the text selection accordingly
FloatPoint p(pos.fX, pos.fY);
p = m_transform.mapPoint(p);
rect->fLeft = p.x();
rect->fTop = p.y();
rect->fRight = p.x() + size.width();
rect->fBottom = p.y() + size.height();
}
static bool boundsIsUnique(const SkTDArray<SkRect>& region,
const SkRect& local)
{
for (int i = 0; i < region.count(); i++) {
if (region[i].contains(local))
return false;
}
return true;
}
void LayerAndroid::clipArea(SkTDArray<SkRect>* region) const
{
SkRect local;
local.set(0, 0, std::numeric_limits<float>::max(),
std::numeric_limits<float>::max());
clipInner(region, local);
}
void LayerAndroid::clipInner(SkTDArray<SkRect>* region,
const SkRect& local) const
{
SkRect localBounds;
bounds(&localBounds);
localBounds.intersect(local);
if (localBounds.isEmpty())
return;
if (m_recordingPicture && boundsIsUnique(*region, localBounds))
*region->append() = localBounds;
for (int i = 0; i < countChildren(); i++)
getChild(i)->clipInner(region, m_haveClip ? localBounds : local);
}
class FindCheck : public SkBounder {
public:
FindCheck()
: m_drew(false)
, m_drewText(false)
{
}
bool drew() const { return m_drew; }
bool drewText() const { return m_drewText; }
void reset() { m_drew = m_drewText = false; }
protected:
virtual bool onIRect(const SkIRect& )
{
m_drew = true;
return false;
}
virtual bool onIRectGlyph(const SkIRect& , const SkBounder::GlyphRec& )
{
m_drew = m_drewText = true;
return false;
}
bool m_drew;
bool m_drewText;
};
class FindCanvas : public ParseCanvas {
public:
void draw(SkPicture* picture, SkScalar offsetX, SkScalar offsetY)
{
save();
translate(-offsetX, -offsetY);
picture->draw(this);
restore();
}
};
class LayerAndroid::FindState {
public:
static const int TOUCH_SLOP = 10;
FindState(int x, int y)
: m_x(x)
, m_y(y)
, m_bestX(x)
, m_bestY(y)
, m_best(0)
{
m_bitmap.setConfig(SkBitmap::kARGB_8888_Config, TOUCH_SLOP * 2,
TOUCH_SLOP * 2);
m_checker.setBounder(&m_findCheck);
m_checker.setBitmapDevice(m_bitmap);
}
const LayerAndroid* best() const { return m_best; }
int bestX() const { return m_bestX; }
int bestY() const { return m_bestY; }
bool drew(SkPicture* picture, const SkRect& localBounds)
{
m_findCheck.reset();
SkScalar localX = SkIntToScalar(m_x - TOUCH_SLOP) - localBounds.fLeft;
SkScalar localY = SkIntToScalar(m_y - TOUCH_SLOP) - localBounds.fTop;
m_checker.draw(picture, localX, localY);
return m_findCheck.drew();
}
bool drewText() { return m_findCheck.drewText(); }
void setBest(const LayerAndroid* best, int x, int y)
{
m_best = best;
m_bestX = x;
m_bestY = y;
}
int x() const { return m_x; }
int y() const { return m_y; }
void setLocation(int x, int y)
{
m_x = x;
m_y = y;
}
protected:
int m_x;
int m_y;
int m_bestX;
int m_bestY;
const LayerAndroid* m_best;
FindCheck m_findCheck;
SkBitmap m_bitmap;
FindCanvas m_checker;
};
void LayerAndroid::findInner(LayerAndroid::FindState& state) const
{
int x = state.x();
int y = state.y();
SkRect localBounds;
bounds(&localBounds);
if (!localBounds.contains(x, y))
return;
// Move into local coordinates.
state.setLocation(x - localBounds.fLeft, y - localBounds.fTop);
for (int i = 0; i < countChildren(); i++)
getChild(i)->findInner(state);
// Move back into the parent coordinates.
int testX = state.x();
int testY = state.y();
state.setLocation(x + localBounds.fLeft, y + localBounds.fTop);
if (!m_recordingPicture)
return;
if (!contentIsScrollable() && !state.drew(m_recordingPicture, localBounds))
return;
state.setBest(this, testX, testY); // set last match (presumably on top)
}
const LayerAndroid* LayerAndroid::find(int* xPtr, int* yPtr, SkPicture* root) const
{
FindState state(*xPtr, *yPtr);
SkRect rootBounds;
rootBounds.setEmpty();
if (root && state.drew(root, rootBounds) && state.drewText())
return 0; // use the root picture only if it contains the text
findInner(state);
*xPtr = state.bestX();
*yPtr = state.bestY();
return state.best();
}
///////////////////////////////////////////////////////////////////////////////
void LayerAndroid::updateFixedLayersPositions(SkRect viewport, LayerAndroid* parentIframeLayer)
{
// If this is an iframe, accumulate the offset from the parent with
// current position, and change the parent pointer.
if (m_isIframe) {
// If this is the top level, take the current position
SkPoint parentOffset;
parentOffset.set(0,0);
if (parentIframeLayer)
parentOffset = parentIframeLayer->getPosition();
m_iframeOffset = parentOffset + getPosition();
parentIframeLayer = this;
}
if (m_isFixed) {
// So if this is a fixed layer inside a iframe, use the iframe offset
// and the iframe's size as the viewport and pass to the children
if (parentIframeLayer) {
viewport = SkRect::MakeXYWH(parentIframeLayer->m_iframeOffset.fX,
parentIframeLayer->m_iframeOffset.fY,
parentIframeLayer->getSize().width(),
parentIframeLayer->getSize().height());
}
float w = viewport.width();
float h = viewport.height();
float dx = viewport.fLeft;
float dy = viewport.fTop;
float x = dx;
float y = dy;
// It turns out that when it is 'auto', the webkit computation will
// take one more factor into account, that is the original render
// layer's X,Y, such that it will align well with the parent's layer.
if (!(m_fixedLeft.defined() || m_fixedRight.defined()))
x += m_renderLayerPos.x();
if (!(m_fixedTop.defined() || m_fixedBottom.defined()))
y += m_renderLayerPos.y();
if (m_fixedLeft.defined() || !m_fixedRight.defined())
x += m_fixedMarginLeft.calcFloatValue(w) + m_fixedLeft.calcFloatValue(w) - m_fixedRect.fLeft;
else
x += w - m_fixedMarginRight.calcFloatValue(w) - m_fixedRight.calcFloatValue(w) - m_fixedRect.fRight;
if (m_fixedTop.defined() || !m_fixedBottom.defined())
y += m_fixedMarginTop.calcFloatValue(h) + m_fixedTop.calcFloatValue(h) - m_fixedRect.fTop;
else
y += h - m_fixedMarginBottom.calcFloatValue(h) - m_fixedBottom.calcFloatValue(h) - m_fixedRect.fBottom;
this->setPosition(x, y);
}
int count = this->countChildren();
for (int i = 0; i < count; i++)
this->getChild(i)->updateFixedLayersPositions(viewport, parentIframeLayer);
}
void LayerAndroid::updatePositions()
{
// apply the viewport to us
if (!m_isFixed) {
// turn our fields into a matrix.
//
// TODO: this should happen in the caller, and we should remove these
// fields from our subclass
SkMatrix matrix;
GLUtils::toSkMatrix(matrix, m_transform);
this->setMatrix(matrix);
}
// now apply it to our children
int count = this->countChildren();
for (int i = 0; i < count; i++)
this->getChild(i)->updatePositions();
}
void LayerAndroid::updateGLPositions(const TransformationMatrix& parentMatrix,
const FloatRect& clipping, float opacity)
{
IntSize layerSize(getSize().width(), getSize().height());
FloatPoint anchorPoint(getAnchorPoint().fX, getAnchorPoint().fY);
FloatPoint position(getPosition().fX, getPosition().fY);
float centerOffsetX = (0.5f - anchorPoint.x()) * layerSize.width();
float centerOffsetY = (0.5f - anchorPoint.y()) * layerSize.height();
float originX = anchorPoint.x() * layerSize.width();
float originY = anchorPoint.y() * layerSize.height();
TransformationMatrix localMatrix;
if (!m_isFixed)
localMatrix = parentMatrix;
localMatrix.translate3d(originX + position.x(),
originY + position.y(),
anchorPointZ());
localMatrix.multLeft(m_transform);
localMatrix.translate3d(-originX,
-originY,
-anchorPointZ());
setDrawTransform(localMatrix);
opacity *= getOpacity();
setDrawOpacity(opacity);
if (m_haveClip) {
// The clipping rect calculation and intersetion will be done in Screen Coord now.
FloatRect clip =
TilesManager::instance()->shader()->clipRectInScreenCoord(drawTransform(), layerSize);
clip.intersect(clipping);
setDrawClip(clip);
} else {
setDrawClip(clipping);
}
int count = this->countChildren();
if (!count)
return;
// Flatten to 2D if the layer doesn't preserve 3D.
if (!preserves3D()) {
localMatrix.setM13(0);
localMatrix.setM23(0);
localMatrix.setM31(0);
localMatrix.setM32(0);
localMatrix.setM33(1);
localMatrix.setM34(0);
localMatrix.setM43(0);
}
// now apply it to our children
if (!m_childrenTransform.isIdentity()) {
localMatrix.translate(getSize().width() * 0.5f, getSize().height() * 0.5f);
localMatrix.multLeft(m_childrenTransform);
localMatrix.translate(-getSize().width() * 0.5f, -getSize().height() * 0.5f);
}
for (int i = 0; i < count; i++)
this->getChild(i)->updateGLPositions(localMatrix, drawClip(), opacity);
}
void LayerAndroid::setContentsImage(SkBitmapRef* img)
{
SkRefCnt_SafeAssign(m_contentsImage, img);
}
bool LayerAndroid::needsTexture()
{
return m_contentsImage || (prepareContext()
&& m_recordingPicture->width() && m_recordingPicture->height());
}
IntRect LayerAndroid::clippedRect() const
{
IntRect r(0, 0, getWidth(), getHeight());
IntRect tr = drawTransform().mapRect(r);
IntRect cr = TilesManager::instance()->shader()->clippedRectWithViewport(tr);
IntRect rect = drawTransform().inverse().mapRect(cr);
return rect;
}
bool LayerAndroid::outsideViewport()
{
return m_layerTextureRect.width() == 0 &&
m_layerTextureRect.height() == 0;
}
int LayerAndroid::fullTextureSize() const
{
return getWidth() * m_scale * getHeight() * m_scale * 4;
}
int LayerAndroid::clippedTextureSize() const
{
IntRect cr = clippedRect();
return cr.width() * cr.height() * 4;
}
int LayerAndroid::countTextureSize()
{
int size = clippedTextureSize();
int count = this->countChildren();
for (int i = 0; i < count; i++)
size += getChild(i)->countTextureSize();
return size;
}
int LayerAndroid::nbLayers()
{
int nb = 1;
int count = this->countChildren();
for (int i = 0; i < count; i++)
nb += getChild(i)->nbLayers();
return nb;
}
void LayerAndroid::collect(Vector<LayerAndroid*>& layers, int& size)
{
m_layerTextureRect = clippedRect();
if (!outsideViewport()) {
layers.append(this);
size += fullTextureSize();
}
int count = this->countChildren();
for (int i = 0; i < count; i++)
getChild(i)->collect(layers, size);
}
static inline bool compareLayerFullSize(const LayerAndroid* a, const LayerAndroid* b)
{
const int sizeA = a->fullTextureSize();
const int sizeB = b->fullTextureSize();
return sizeA > sizeB;
}
void LayerAndroid::computeTextureSize(double time)
{
if (m_lastComputeTextureSize + s_computeTextureDelay > time)
return;
m_lastComputeTextureSize = time;
// First, we collect the layers, computing m_layerTextureRect
// as being clipped against the viewport
Vector <LayerAndroid*> layers;
int total = 0;
collect(layers, total);
// Then we sort them by the size the full texture would need
std::stable_sort(layers.begin(), layers.end(), compareLayerFullSize);
// Now, let's determinate which layer can use a full texture
int max = TilesManager::instance()->maxLayersAllocation();
int maxLayerSize = TilesManager::instance()->maxLayerAllocation();
XLOG("*** layers sorted by size ***");
XLOG("total memory needed: %d bytes (%d Mb), max %d Mb",
total, total / 1024 / 1024, max / 1024 / 1024);
for (unsigned int i = 0; i < layers.size(); i++) {
LayerAndroid* layer = layers[i];
bool clipped = true;
// If we are under the maximum, and the layer inspected
// needs a texture less than the maxLayerSize, use the full texture.
if ((total < max) &&
(layer->fullTextureSize() < maxLayerSize) &&
(layer->getWidth() * m_scale < TilesManager::instance()->getMaxTextureSize()) &&
(layer->getHeight() * m_scale < TilesManager::instance()->getMaxTextureSize())) {
IntRect full(0, 0, layer->getWidth(), layer->getHeight());
layer->m_layerTextureRect = full;
clipped = false;
} else {
// Otherwise, the layer is clipped; update the total
total -= layer->fullTextureSize();
total += layer->clippedTextureSize();
}
XLOG("Layer %d (%.2f, %.2f) %d bytes (clipped: %s)",
layer->uniqueId(), layer->getWidth(), layer->getHeight(),
layer->fullTextureSize(),
clipped ? "YES" : "NO");
}
XLOG("total memory used after clipping: %d bytes (%d Mb), max %d Mb",
total, total / 1024 / 1024, max / 1024 / 1024);
XLOG("*** end of sorted layers ***");
}
void LayerAndroid::showLayers(int indent)
{
IntRect cr = clippedRect();
int size = cr.width() * cr.height() * 4;
char space[256];
int p = 0;
for (; p < indent; p++)
space[p] = ' ';
space[p] = '\0';
bool outside = outsideViewport();
if (needsTexture() && !outside) {
XLOGC("%s Layer %d (%.2f, %.2f), cropped to (%d, %d, %d, %d), using %d Mb",
space, uniqueId(), getWidth(), getHeight(),
cr.x(), cr.y(), cr.width(), cr.height(), size / 1024 / 1024);
} else if (needsTexture() && outside) {
XLOGC("%s Layer %d is outside the viewport", space, uniqueId());
} else {
XLOGC("%s Layer %d has no texture", space, uniqueId());
}
int count = this->countChildren();
for (int i = 0; i < count; i++)
getChild(i)->showLayers(indent + 1);
}
void LayerAndroid::reserveGLTextures()
{
int count = this->countChildren();
for (int i = 0; i < count; i++)
this->getChild(i)->reserveGLTextures();
if (!needsTexture())
return;
if (outsideViewport())
return;
LayerTexture* reservedTexture = 0;
reservedTexture = TilesManager::instance()->getExistingTextureForLayer(
this, m_layerTextureRect);
// If we do not have a drawing texture (i.e. new LayerAndroid tree),
// we get any one available.
if (!m_drawingTexture) {
LayerTexture* texture = reservedTexture;
m_drawingTexture =
TilesManager::instance()->getExistingTextureForLayer(
this, m_layerTextureRect, true, texture);
if (!m_drawingTexture)
m_drawingTexture = reservedTexture;
}
// SMP flush
android::AutoMutex lock(m_atomicSync);
// we set the reservedTexture if it's different from the drawing texture
if (m_reservedTexture != reservedTexture &&
((reservedTexture != m_drawingTexture) ||
(m_reservedTexture == 0 && m_drawingTexture == 0))) {
// Call release on the reserved texture if it is not the same as the
// drawing texture.
if (m_reservedTexture && (m_reservedTexture != m_drawingTexture))
m_reservedTexture->release(this);
m_reservedTexture = reservedTexture;
}
}
void LayerAndroid::createGLTextures()
{
int count = this->countChildren();
for (int i = 0; i < count; i++)
this->getChild(i)->createGLTextures();
if (!needsTexture())
return;
if (outsideViewport())
return;
LayerTexture* reservedTexture = m_reservedTexture;
if (!reservedTexture)
reservedTexture = TilesManager::instance()->createTextureForLayer(this, m_layerTextureRect);
if (!reservedTexture)
return;
// SMP flush
m_atomicSync.lock();
m_reservedTexture = reservedTexture;
m_atomicSync.unlock();
if (reservedTexture &&
reservedTexture->ready() &&
(reservedTexture != m_drawingTexture)) {
if (m_drawingTexture) {
TilesManager::instance()->removeOperationsForTexture(m_drawingTexture);
m_drawingTexture->release(this);
}
m_drawingTexture = reservedTexture;
}
if (!needsScheduleRepaint(reservedTexture))
return;
m_atomicSync.lock();
if (!m_requestSent) {
m_requestSent = true;
m_atomicSync.unlock();
XLOG("We schedule a paint for layer %d (%x), because m_dirty %d, using texture %x (%d, %d)",
uniqueId(), this, m_dirty, m_reservedTexture,
m_reservedTexture->rect().width(), m_reservedTexture->rect().height());
PaintLayerOperation* operation = new PaintLayerOperation(this);
TilesManager::instance()->scheduleOperation(operation);
} else {
XLOG("We don't schedule a paint for layer %d (%x), because we already sent a request",
uniqueId(), this);
m_atomicSync.unlock();
}
}
bool LayerAndroid::needsScheduleRepaint(LayerTexture* texture)
{
if (!texture)
return false;
TextureInfo* textureInfo = texture->consumerLock();
if (!texture->readyFor(this))
m_dirty = true;
texture->consumerRelease();
return m_dirty;
}
static inline bool compareLayerZ(const LayerAndroid* a, const LayerAndroid* b)
{
const TransformationMatrix& transformA = a->drawTransform();
const TransformationMatrix& transformB = b->drawTransform();
return transformA.m43() < transformB.m43();
}
bool LayerAndroid::drawGL(SkMatrix& matrix)
{
TilesManager::instance()->shader()->clip(m_clippingRect);
if (prepareContext() && m_drawingTexture) {
TextureInfo* textureInfo = m_drawingTexture->consumerLock();
if (textureInfo) {
SkRect bounds;
bounds.set(m_drawingTexture->rect());
XLOG("LayerAndroid %d %x (%.2f, %.2f) drawGL (texture %x, %d, %d, %d, %d)",
uniqueId(), this, getWidth(), getHeight(),
m_drawingTexture, bounds.x(), bounds.y(),
bounds.width(), bounds.height());
//TODO determine when drawing if the alpha value is used.
TilesManager::instance()->shader()->drawLayerQuad(drawTransform(), bounds,
textureInfo->m_textureId,
m_drawOpacity, true);
}
m_drawingTexture->consumerRelease();
}
// When the layer is dirty, the UI thread should be notified to redraw.
bool askPaint = drawChildrenGL(matrix);
m_atomicSync.lock();
askPaint |= m_dirty;
m_atomicSync.unlock();
return askPaint;
}
bool LayerAndroid::drawChildrenGL(SkMatrix& matrix)
{
bool askPaint = false;
int count = this->countChildren();
if (count > 0) {
Vector <LayerAndroid*> sublayers;
for (int i = 0; i < count; i++)
sublayers.append(this->getChild(i));
// now we sort for the transparency
std::stable_sort(sublayers.begin(), sublayers.end(), compareLayerZ);
for (int i = 0; i < count; i++) {
LayerAndroid* layer = sublayers[i];
askPaint |= layer->drawGL(matrix);
}
}
return askPaint;
}
void LayerAndroid::setScale(float scale)
{
int count = this->countChildren();
for (int i = 0; i < count; i++)
this->getChild(i)->setScale(scale);
android::AutoMutex lock(m_atomicSync);
m_scale = scale;
}
// This is called from the texture generation thread
void LayerAndroid::paintBitmapGL()
{
// We acquire the values below atomically. This ensures that we are reading
// values correctly across cores. Further, once we have these values they
// can be updated by other threads without consequence.
m_atomicSync.lock();
LayerTexture* texture = m_reservedTexture;
if (!texture) {
m_atomicSync.unlock();
XLOG("Layer %d doesn't have a texture!", uniqueId());
return;
}
XLOG("LayerAndroid %d paintBitmapGL, texture used %x (%d, %d)", uniqueId(), texture,
texture->rect().width(), texture->rect().height());
// We need to mark the texture as busy before relinquishing the lock
// -- so that TilesManager::cleanupLayersTextures() can check if the texture
// is used before trying to destroy it
// If LayerAndroid::removeTexture() is called before us, we'd have bailed
// out early as texture would have been null; if it is called after us, we'd
// have marked the texture has being busy, and the texture will not be
// destroyed immediately.
texture->producerAcquireContext();
TextureInfo* textureInfo = texture->producerLock();
m_atomicSync.unlock();
// at this point we can safely check the ownership (if the texture got
// transferred to another BaseTile under us)
if (texture->owner() != this) {
texture->producerRelease();
return;
}
XLOG("LayerAndroid %d %x (%.2f, %.2f) paintBitmapGL WE ARE PAINTING", uniqueId(), this, getWidth(), getHeight());
SkCanvas* canvas = texture->canvas();
float scale = texture->scale();
IntRect textureRect = texture->rect();
canvas->save();
canvas->drawARGB(0, 0, 0, 0, SkXfermode::kClear_Mode);
canvas->scale(scale, scale);
canvas->translate(-textureRect.x(), -textureRect.y());
contentDraw(canvas);
canvas->restore();
m_atomicSync.lock();
texture->setTextureInfoFor(this);
m_dirty = false;
m_requestSent = false;
XLOG("LayerAndroid %d paintBitmapGL PAINTING DONE, updating the texture", uniqueId());
texture->producerUpdate(textureInfo);
m_atomicSync.unlock();
XLOG("LayerAndroid %d paintBitmapGL UPDATING DONE", uniqueId());
}
void LayerAndroid::contentDraw(SkCanvas* canvas)
{
if (m_contentsImage) {
SkRect dest;
dest.set(0, 0, getSize().width(), getSize().height());
canvas->drawBitmapRect(m_contentsImage->bitmap(), 0, dest);
} else {
canvas->drawPicture(*m_recordingPicture);
}
m_atomicSync.lock();
if (m_extra)
canvas->drawPicture(*m_extra);
m_atomicSync.unlock();
if (TilesManager::instance()->getShowVisualIndicator()) {
float w = getSize().width();
float h = getSize().height();
SkPaint paint;
paint.setARGB(128, 255, 0, 0);
canvas->drawLine(0, 0, w, h, paint);
canvas->drawLine(0, h, w, 0, paint);
paint.setARGB(128, 0, 255, 0);
canvas->drawLine(0, 0, 0, h, paint);
canvas->drawLine(0, h, w, h, paint);
canvas->drawLine(w, h, w, 0, paint);
canvas->drawLine(w, 0, 0, 0, paint);
if (m_isFixed) {
SkPaint paint;
paint.setARGB(80, 255, 0, 0);
canvas->drawRect(m_fixedRect, paint);
}
}
}
void LayerAndroid::onDraw(SkCanvas* canvas, SkScalar opacity)
{
if (m_haveClip) {
SkRect r;
r.set(0, 0, getSize().width(), getSize().height());
canvas->clipRect(r);
return;
}
if (!prepareContext())
return;
// we just have this save/restore for opacity...
SkAutoCanvasRestore restore(canvas, true);
int canvasOpacity = SkScalarRound(opacity * 255);
if (canvasOpacity < 255)
canvas->setDrawFilter(new OpacityDrawFilter(canvasOpacity));
contentDraw(canvas);
}
SkPicture* LayerAndroid::recordContext()
{
if (prepareContext(true))
return m_recordingPicture;
return 0;
}
bool LayerAndroid::prepareContext(bool force)
{
if (masksToBounds())
return false;
if (force || !m_recordingPicture ||
(m_recordingPicture &&
((m_recordingPicture->width() != (int) getSize().width()) ||
(m_recordingPicture->height() != (int) getSize().height())))) {
SkSafeUnref(m_recordingPicture);
m_recordingPicture = new SkPicture();
}
return m_recordingPicture;
}
SkRect LayerAndroid::subtractLayers(const SkRect& visibleRect) const
{
SkRect result;
if (m_recordingPicture) {
SkRect globalRect = bounds();
globalRect.offset(-getPosition()); // localToGlobal adds in position
SkMatrix globalMatrix;
localToGlobal(&globalMatrix);
globalMatrix.mapRect(&globalRect);
SkIRect roundedGlobal;
globalRect.round(&roundedGlobal);
SkIRect iVisibleRect;
visibleRect.round(&iVisibleRect);
SkRegion visRegion(iVisibleRect);
visRegion.op(roundedGlobal, SkRegion::kDifference_Op);
result.set(visRegion.getBounds());
#if DEBUG_NAV_UI
SkDebugf("%s visibleRect=(%g,%g,r=%g,b=%g) globalRect=(%g,%g,r=%g,b=%g)"
"result=(%g,%g,r=%g,b=%g)", __FUNCTION__,
visibleRect.fLeft, visibleRect.fTop,
visibleRect.fRight, visibleRect.fBottom,
globalRect.fLeft, globalRect.fTop,
globalRect.fRight, globalRect.fBottom,
result.fLeft, result.fTop, result.fRight, result.fBottom);
#endif
} else
result = visibleRect;
for (int i = 0; i < countChildren(); i++)
result = getChild(i)->subtractLayers(result);
return result;
}
// Debug tools : dump the layers tree in a file.
// The format is simple:
// properties have the form: key = value;
// all statements are finished with a semi-colon.
// value can be:
// - int
// - float
// - array of elements
// - composed type
// a composed type enclose properties in { and }
// an array enclose composed types in { }, separated with a comma.
// exemple:
// {
// x = 3;
// y = 4;
// value = {
// x = 3;
// y = 4;
// };
// anarray = [
// { x = 3; },
// { y = 4; }
// ];
// }
void lwrite(FILE* file, const char* str)
{
fwrite(str, sizeof(char), strlen(str), file);
}
void writeIndent(FILE* file, int indentLevel)
{
if (indentLevel)
fprintf(file, "%*s", indentLevel*2, " ");
}
void writeln(FILE* file, int indentLevel, const char* str)
{
writeIndent(file, indentLevel);
lwrite(file, str);
lwrite(file, "\n");
}
void writeIntVal(FILE* file, int indentLevel, const char* str, int value)
{
writeIndent(file, indentLevel);
fprintf(file, "%s = %d;\n", str, value);
}
void writeHexVal(FILE* file, int indentLevel, const char* str, int value)
{
writeIndent(file, indentLevel);
fprintf(file, "%s = %x;\n", str, value);
}
void writeFloatVal(FILE* file, int indentLevel, const char* str, float value)
{
writeIndent(file, indentLevel);
fprintf(file, "%s = %.3f;\n", str, value);
}
void writePoint(FILE* file, int indentLevel, const char* str, SkPoint point)
{
writeIndent(file, indentLevel);
fprintf(file, "%s = { x = %.3f; y = %.3f; };\n", str, point.fX, point.fY);
}
void writeSize(FILE* file, int indentLevel, const char* str, SkSize size)
{
writeIndent(file, indentLevel);
fprintf(file, "%s = { w = %.3f; h = %.3f; };\n", str, size.width(), size.height());
}
void writeRect(FILE* file, int indentLevel, const char* str, SkRect rect)
{
writeIndent(file, indentLevel);
fprintf(file, "%s = { x = %.3f; y = %.3f; w = %.3f; h = %.3f; };\n",
str, rect.fLeft, rect.fTop, rect.width(), rect.height());
}
void writeLength(FILE* file, int indentLevel, const char* str, SkLength length)
{
if (!length.defined())
return;
writeIndent(file, indentLevel);
fprintf(file, "%s = { type = %d; value = %.2f; };\n", str, length.type, length.value);
}
void writeMatrix(FILE* file, int indentLevel, const char* str, const TransformationMatrix& matrix)
{
writeIndent(file, indentLevel);
fprintf(file, "%s = { (%.2f,%.2f,%.2f,%.2f),(%.2f,%.2f,%.2f,%.2f),"
"(%.2f,%.2f,%.2f,%.2f),(%.2f,%.2f,%.2f,%.2f) };\n",
str,
matrix.m11(), matrix.m12(), matrix.m13(), matrix.m14(),
matrix.m21(), matrix.m22(), matrix.m23(), matrix.m24(),
matrix.m31(), matrix.m32(), matrix.m33(), matrix.m34(),
matrix.m41(), matrix.m42(), matrix.m43(), matrix.m44());
}
void LayerAndroid::dumpLayers(FILE* file, int indentLevel) const
{
writeln(file, indentLevel, "{");
writeHexVal(file, indentLevel + 1, "layer", (int)this);
writeIntVal(file, indentLevel + 1, "layerId", m_uniqueId);
writeIntVal(file, indentLevel + 1, "haveClip", m_haveClip);
writeIntVal(file, indentLevel + 1, "isFixed", m_isFixed);
writeIntVal(file, indentLevel + 1, "m_isIframe", m_isIframe);
writePoint(file, indentLevel + 1, "m_iframeOffset", m_iframeOffset);
writeFloatVal(file, indentLevel + 1, "opacity", getOpacity());
writeSize(file, indentLevel + 1, "size", getSize());
writePoint(file, indentLevel + 1, "position", getPosition());
writePoint(file, indentLevel + 1, "anchor", getAnchorPoint());
writeMatrix(file, indentLevel + 1, "drawMatrix", drawTransform());
writeMatrix(file, indentLevel + 1, "transformMatrix", m_transform);
if (m_isFixed) {
writeLength(file, indentLevel + 1, "fixedLeft", m_fixedLeft);
writeLength(file, indentLevel + 1, "fixedTop", m_fixedTop);
writeLength(file, indentLevel + 1, "fixedRight", m_fixedRight);
writeLength(file, indentLevel + 1, "fixedBottom", m_fixedBottom);
writeLength(file, indentLevel + 1, "fixedMarginLeft", m_fixedMarginLeft);
writeLength(file, indentLevel + 1, "fixedMarginTop", m_fixedMarginTop);
writeLength(file, indentLevel + 1, "fixedMarginRight", m_fixedMarginRight);
writeLength(file, indentLevel + 1, "fixedMarginBottom", m_fixedMarginBottom);
writeRect(file, indentLevel + 1, "fixedRect", m_fixedRect);
}
if (m_recordingPicture) {
writeIntVal(file, indentLevel + 1, "m_recordingPicture.width", m_recordingPicture->width());
writeIntVal(file, indentLevel + 1, "m_recordingPicture.height", m_recordingPicture->height());
}
if (countChildren()) {
writeln(file, indentLevel + 1, "children = [");
for (int i = 0; i < countChildren(); i++) {
if (i > 0)
writeln(file, indentLevel + 1, ", ");
getChild(i)->dumpLayers(file, indentLevel + 1);
}
writeln(file, indentLevel + 1, "];");
}
writeln(file, indentLevel, "}");
}
void LayerAndroid::dumpToLog() const
{
FILE* file = fopen("/data/data/com.android.browser/layertmp", "w");
dumpLayers(file, 0);
fclose(file);
file = fopen("/data/data/com.android.browser/layertmp", "r");
char buffer[512];
bzero(buffer, sizeof(buffer));
while (fgets(buffer, sizeof(buffer), file))
SkDebugf("%s", buffer);
fclose(file);
}
LayerAndroid* LayerAndroid::findById(int match)
{
if (m_uniqueId == match)
return this;
for (int i = 0; i < countChildren(); i++) {
LayerAndroid* result = getChild(i)->findById(match);
if (result)
return result;
}
return 0;
}
void LayerAndroid::setExtra(DrawExtra* extra)
{
for (int i = 0; i < countChildren(); i++)
getChild(i)->setExtra(extra);
android::AutoMutex lock(m_atomicSync);
if (extra || (m_extra && !extra))
m_dirty = true;
delete m_extra;
m_extra = 0;
if (!extra)
return;
if (m_recordingPicture) {
IntRect dummy; // inval area, unused for now
m_extra = new SkPicture();
SkCanvas* canvas = m_extra->beginRecording(m_recordingPicture->width(),
m_recordingPicture->height());
extra->draw(canvas, this, &dummy);
m_extra->endRecording();
}
}
} // namespace WebCore
#endif // USE(ACCELERATED_COMPOSITING)
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