/* MapLine::clearUnneededTextures
* Clears any textures not needed on the line (eg. a front upper
* texture that would be invisible)
*******************************************************************/
void MapLine::clearUnneededTextures()
{
// Check needed textures
int tex = needsTexture();
// Clear any unneeded textures
if (side1)
{
if ((tex & TEX_FRONT_MIDDLE) == 0)
setStringProperty("side1.texturemiddle", "-");
if ((tex & TEX_FRONT_UPPER) == 0)
setStringProperty("side1.texturetop", "-");
if ((tex & TEX_FRONT_LOWER) == 0)
setStringProperty("side1.texturebottom", "-");
}
if (side2)
{
if ((tex & TEX_BACK_MIDDLE) == 0)
setStringProperty("side2.texturemiddle", "-");
if ((tex & TEX_BACK_UPPER) == 0)
setStringProperty("side2.texturetop", "-");
if ((tex & TEX_BACK_LOWER) == 0)
setStringProperty("side2.texturebottom", "-");
}
}
int LayerAndroid::nbTexturedLayers()
{
int nb = 0;
int count = this->countChildren();
for (int i = 0; i < count; i++)
nb += this->getChild(i)->nbTexturedLayers();
if (needsTexture())
nb++;
return nb;
}
void Surface::prepareGL(bool layerTilesDisabled, bool updateWithBlit)
{
bool tilesDisabled = layerTilesDisabled && !isBase();
if (!m_surfaceBacking) {
ALOGV("prepareGL on Surf %p, no SurfBack, needsTexture? %d",
this, m_surfaceBacking, needsTexture());
if (needsTexture() || (isBase() && layerTilesDisabled))
m_surfaceBacking = new SurfaceBacking(isBase());
else
return;
}
if (tilesDisabled) {
m_surfaceBacking->discardTextures();
} else {
bool allowZoom = hasText(); // only allow for scale > 1 if painting vectors
IntRect prepareArea = computePrepareArea();
IntRect fullArea = fullContentArea();
ALOGV("prepareGL on Surf %p with SurfBack %p, %d layers, first layer %s (%d) "
"prepareArea(%d, %d - %d x %d) fullArea(%d, %d - %d x %d)",
this, m_surfaceBacking, m_layers.size(),
getFirstLayer()->subclassName().ascii().data(),
getFirstLayer()->uniqueId(),
prepareArea.x(), prepareArea.y(), prepareArea.width(), prepareArea.height(),
fullArea.x(), fullArea.y(), fullArea.width(), fullArea.height());
m_surfaceBacking->prepareGL(getFirstLayer()->state(), allowZoom,
prepareArea, fullArea,
this, useAggressiveRendering(), updateWithBlit);
}
for (size_t i = 0; i < m_layers.size(); i++) {
LayerContent* content = m_layers[i]->content();
if (content)
content->clearPrerenders();
}
}
bool Surface::canUpdateWithBlit()
{
// If we don't have a texture, we have nothing to update and thus can take
// the fast path
if (!needsTexture())
return true;
// If we have a surface backing that isn't ready, we can't update with a blit
// If it is ready, then check to see if it is dirty. We can only call isDirty()
// if isReady() returns true
if (!m_surfaceBacking)
return false;
if (!m_surfaceBacking->isReady())
return false;
if (!m_surfaceBacking->isDirty())
return true;
if (!singleLayer())
return false;
return getFirstLayer()->canUpdateWithBlit();
}
void LayerAndroid::showLayer(int indent)
{
char spaces[256];
memset(spaces, 0, 256);
for (int i = 0; i < indent; i++)
spaces[i] = ' ';
if (!indent) {
ALOGD("\n\n--- LAYERS TREE ---");
IntRect contentViewport(TilesManager::instance()->shader()->contentViewport());
ALOGD("contentViewport(%d, %d, %d, %d)",
contentViewport.x(), contentViewport.y(),
contentViewport.width(), contentViewport.height());
}
IntRect r(0, 0, getWidth(), getHeight());
IntRect tr = m_drawTransform.mapRect(r);
IntRect visible = visibleContentArea();
IntRect clip(m_clippingRect.x(), m_clippingRect.y(),
m_clippingRect.width(), m_clippingRect.height());
ALOGD("%s s:%x %s %s (%d) [%d:%x - 0x%x] - %s %s - area (%d, %d, %d, %d) - visible (%d, %d, %d, %d) "
"clip (%d, %d, %d, %d) %s %s m_content(%x), pic w: %d h: %d originalLayer: %x %d",
spaces, m_surface, m_haveClip ? "CLIP LAYER" : "", subclassName().ascii().data(),
subclassType(), uniqueId(), this, m_owningLayer,
needsTexture() ? "needsTexture" : "",
m_imageCRC ? "hasImage" : "",
tr.x(), tr.y(), tr.width(), tr.height(),
visible.x(), visible.y(), visible.width(), visible.height(),
clip.x(), clip.y(), clip.width(), clip.height(),
contentIsScrollable() ? "SCROLLABLE" : "",
isPositionFixed() ? "FIXED" : "",
m_content,
m_content ? m_content->width() : -1,
m_content ? m_content->height() : -1,
m_originalLayer, m_originalLayer ? m_originalLayer->uniqueId() : -1);
int count = this->countChildren();
for (int i = 0; i < count; i++)
this->getChild(i)->showLayer(indent + 2);
}
bool Surface::tryUpdateSurface(Surface* oldSurface)
{
if (!needsTexture() || !oldSurface->needsTexture())
return false;
// merge surfaces based on first layer ID
if (getFirstLayer()->uniqueId() != oldSurface->getFirstLayer()->uniqueId())
return false;
m_surfaceBacking = oldSurface->m_surfaceBacking;
SkSafeRef(m_surfaceBacking);
ALOGV("%p taking old SurfBack %p from surface %p, nt %d",
this, m_surfaceBacking, oldSurface, oldSurface->needsTexture());
if (!m_surfaceBacking) {
// no SurfBack to inval, so don't worry about it.
return true;
}
SkRegion invalRegion;
bool fullInval = false;
if (singleLayer() && oldSurface->singleLayer()) {
// both are single matching layers, simply apply inval
SkRegion* layerInval = getFirstLayer()->getInvalRegion();
invalRegion = *layerInval;
if (isBase()) {
// the base layer paints outside it's content area to ensure the
// viewport is convered, so fully invalidate all tiles if its size
// changes to ensure no stale content remains
LayerContent* newContent = getFirstLayer()->content();
LayerContent* oldContent = oldSurface->getFirstLayer()->content();
fullInval = newContent->width() != oldContent->width()
|| newContent->height() != oldContent->height();
}
} else {
fullInval = m_layers.size() != oldSurface->m_layers.size();
if (!fullInval) {
for (unsigned int i = 0; i < m_layers.size(); i++) {
if ((m_layers[i]->uniqueId() != oldSurface->m_layers[i]->uniqueId())
|| (m_layers[i]->fullContentAreaMapped() != oldSurface->m_layers[i]->fullContentAreaMapped())) {
// layer list has changed, fully invalidate
// TODO: partially invalidate based on layer size/position
fullInval = true;
break;
} else if (!m_layers[i]->getInvalRegion()->isEmpty()) {
// merge layer inval - translate the layer's inval region into surface coordinates
// TODO: handle scale/3d transform mapping
FloatRect layerPos = m_layers[i]->fullContentAreaMapped();
m_layers[i]->getInvalRegion()->translate(layerPos.x(), layerPos.y());
invalRegion.op(*(m_layers[i]->getInvalRegion()), SkRegion::kUnion_Op);
}
}
}
}
if (fullInval)
invalRegion.setRect(-1e8, -1e8, 2e8, 2e8);
m_surfaceBacking->markAsDirty(invalRegion);
return true;
}
void LayerAndroid::assignSurfaces(LayerMergeState* mergeState)
{
// recurse through layers in draw order, and merge layers when able
bool needNewSurface = !mergeState->currentSurface
|| mergeState->nonMergeNestedLevel > 0
|| !canJoinSurface(mergeState->currentSurface);
if (needNewSurface) {
mergeState->currentSurface = new Surface();
mergeState->surfaceList->append(mergeState->currentSurface);
}
#ifdef LAYER_MERGING_DEBUG
ALOGD("%*slayer %p(%d) rl %p %s surface %p lvl: %d, fixed %d, anim %d, intCom %d, haveClip %d scroll %d hasText (layer: %d surface: %d) hasContent %d size %.2f x %.2f",
4*mergeState->depth, "", this, m_uniqueId, m_owningLayer,
needNewSurface ? "NEW" : "joins", mergeState->currentSurface,
mergeState->nonMergeNestedLevel,
isPositionFixed(), m_animations.size() != 0,
m_intrinsicallyComposited,
m_haveClip,
contentIsScrollable(), m_content ? m_content->hasText() : -1,
mergeState->currentSurface ? mergeState->currentSurface->hasText() : -1,
needsTexture(), getWidth(), getHeight());
#endif
mergeState->currentSurface->addLayer(this, m_drawTransform);
m_surface = mergeState->currentSurface;
if (hasDynamicTransform()) {
// disable layer merging within the children of these layer types
mergeState->nonMergeNestedLevel++;
}
// pass the surface through children in drawing order, so that they may
// attach themselves (and paint on it) if possible, or ignore it and create
// a new one if not
int count = this->countChildren();
if (count > 0) {
mergeState->depth++;
Vector <LayerAndroid*> sublayers;
for (int i = 0; i < count; i++)
sublayers.append(getChild(i));
// sort for the transparency
std::stable_sort(sublayers.begin(), sublayers.end(), compareLayerZ);
for (int i = 0; i < count; i++)
sublayers[i]->assignSurfaces(mergeState);
mergeState->depth--;
}
if (hasDynamicTransform()) {
// re-enable joining
mergeState->nonMergeNestedLevel--;
// disallow layers painting after to join with this surface
mergeState->currentSurface = 0;
}
if (needsIsolatedSurface())
mergeState->currentSurface = 0;
}
