diff options
| -rw-r--r-- | Source/WebCore/platform/graphics/android/rendering/Surface.cpp | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/Source/WebCore/platform/graphics/android/rendering/Surface.cpp b/Source/WebCore/platform/graphics/android/rendering/Surface.cpp index d68051d..73466d3 100644 --- a/Source/WebCore/platform/graphics/android/rendering/Surface.cpp +++ b/Source/WebCore/platform/graphics/android/rendering/Surface.cpp @@ -90,13 +90,24 @@ bool Surface::tryUpdateSurface(Surface* oldSurface) return true; } + SkRegion invalRegion; + bool fullInval = false; if (singleLayer() && oldSurface->singleLayer()) { // both are single matching layers, simply apply inval SkRegion* layerInval = getFirstLayer()->getInvalRegion(); - m_surfaceBacking->markAsDirty(*layerInval); + 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 { - SkRegion invalRegion; - bool fullInval = m_layers.size() != oldSurface->m_layers.size(); + 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()) @@ -111,16 +122,15 @@ bool Surface::tryUpdateSurface(Surface* oldSurface) FloatRect layerPos = m_layers[i]->fullContentAreaMapped(); m_layers[i]->getInvalRegion()->translate(layerPos.x(), layerPos.y()); invalRegion.op(*(m_layers[i]->getInvalRegion()), SkRegion::kUnion_Op); - break; } } } + } - if (fullInval) - invalRegion.setRect(-1e8, -1e8, 2e8, 2e8); + if (fullInval) + invalRegion.setRect(-1e8, -1e8, 2e8, 2e8); - m_surfaceBacking->markAsDirty(invalRegion); - } + m_surfaceBacking->markAsDirty(invalRegion); return true; } |