Revert 150342 "Implement filter primitive subregion for referenc..."

trunk/Source/core/platform/graphics/filters/FilterEffect.cpp

Index: trunk/Source/core/platform/graphics/filters/FilterEffect.cpp
===================================================================
--- trunk/Source/core/platform/graphics/filters/FilterEffect.cpp	(revision 150368)
+++ trunk/Source/core/platform/graphics/filters/FilterEffect.cpp	(working copy)
@@ -77,45 +77,6 @@
     
 }
 
-FloatRect FilterEffect::mapRectRecursive(const FloatRect& rect)
-{
-    FloatRect result;
-    if (m_inputEffects.size() > 0) {
-        result = m_inputEffects.at(0)->mapRectRecursive(rect);
-        for (unsigned i = 1; i < m_inputEffects.size(); ++i)
-            result.unite(m_inputEffects.at(i)->mapRectRecursive(rect));
-    } else
-        result = rect;
-    return mapRect(result);
-}
-
-FloatRect FilterEffect::getSourceRect(const FloatRect& destRect, const FloatRect& destClipRect)
-{
-    FloatRect sourceRect = mapRect(destRect, false);
-    FloatRect sourceClipRect = mapRect(destClipRect, false);
-
-    FloatRect boundaries = effectBoundaries();
-    if (hasX())
-        sourceClipRect.setX(boundaries.x());
-    if (hasY())
-        sourceClipRect.setY(boundaries.y());
-    if (hasWidth())
-        sourceClipRect.setWidth(boundaries.width());
-    if (hasHeight())
-        sourceClipRect.setHeight(boundaries.height());
-
-    FloatRect result;
-    if (m_inputEffects.size() > 0) {
-        result = m_inputEffects.at(0)->getSourceRect(sourceRect, sourceClipRect);
-        for (unsigned i = 1; i < m_inputEffects.size(); ++i)
-            result.unite(m_inputEffects.at(i)->getSourceRect(sourceRect, sourceClipRect));
-    } else {
-        result = sourceRect;
-        result.intersect(sourceClipRect);
-    }
-    return result;
-}
-
 IntRect FilterEffect::requestedRegionOfInputImageData(const IntRect& effectRect) const
 {
     ASSERT(hasResult());
@@ -437,43 +398,4 @@
     return ts;
 }
 
-FloatRect FilterEffect::determineFilterPrimitiveSubregion()
-{
-    ASSERT(filter());
-
-    // FETile, FETurbulence, FEFlood don't have input effects, take the filter region as unite rect.
-    FloatRect subregion;
-    if (unsigned numberOfInputEffects = inputEffects().size()) {
-        subregion = inputEffect(0)->determineFilterPrimitiveSubregion();
-        for (unsigned i = 1; i < numberOfInputEffects; ++i)
-            subregion.unite(inputEffect(i)->determineFilterPrimitiveSubregion());
-    } else
-        subregion = filter()->filterRegion();
-
-    // After calling determineFilterPrimitiveSubregion on the target effect, reset the subregion again for <feTile>.
-    if (filterEffectType() == FilterEffectTypeTile)
-        subregion = filter()->filterRegion();
-
-    subregion = mapRect(subregion);
-
-    FloatRect boundaries = effectBoundaries();
-    if (hasX())
-        subregion.setX(boundaries.x());
-    if (hasY())
-        subregion.setY(boundaries.y());
-    if (hasWidth())
-        subregion.setWidth(boundaries.width());
-    if (hasHeight())
-        subregion.setHeight(boundaries.height());
-
-    setFilterPrimitiveSubregion(subregion);
-
-    FloatRect absoluteSubregion = filter()->absoluteTransform().mapRect(subregion);
-    FloatSize filterResolution = filter()->filterResolution();
-    absoluteSubregion.scale(filterResolution.width(), filterResolution.height());
-
-    setMaxEffectRect(absoluteSubregion);
-    return subregion;
-}
-
 } // namespace WebCore