Move all filters-related files from core/platform to platform.

Source/core/platform/graphics/filters/FEDropShadow.cpp

Index: Source/core/platform/graphics/filters/FEDropShadow.cpp
diff --git a/Source/core/platform/graphics/filters/FEDropShadow.cpp b/Source/core/platform/graphics/filters/FEDropShadow.cpp
deleted file mode 100644
index ac5b7487edb86f56d19454e4d75733814924fd9b..0000000000000000000000000000000000000000
--- a/Source/core/platform/graphics/filters/FEDropShadow.cpp
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Copyright (C) Research In Motion Limited 2011. All rights reserved.
- * Copyright (C) 2013 Google Inc. All rights reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#include "config.h"
-
-#include "core/platform/graphics/filters/FEDropShadow.h"
-
-
-#include "platform/graphics/GraphicsContext.h"
-#include "platform/graphics/filters/FEGaussianBlur.h"
-#include "platform/graphics/filters/SkiaImageFilterBuilder.h"
-#include "platform/text/TextStream.h"
-#include "third_party/skia/include/core/SkColorFilter.h"
-#include "third_party/skia/include/effects/SkBlurImageFilter.h"
-#include "third_party/skia/include/effects/SkDropShadowImageFilter.h"
-
-using namespace std;
-
-namespace WebCore {
-
-FEDropShadow::FEDropShadow(Filter* filter, float stdX, float stdY, float dx, float dy, const Color& shadowColor, float shadowOpacity)
-    : FilterEffect(filter)
-    , m_stdX(stdX)
-    , m_stdY(stdY)
-    , m_dx(dx)
-    , m_dy(dy)
-    , m_shadowColor(shadowColor)
-    , m_shadowOpacity(shadowOpacity)
-{
-}
-
-PassRefPtr<FEDropShadow> FEDropShadow::create(Filter* filter, float stdX, float stdY, float dx, float dy, const Color& shadowColor, float shadowOpacity)
-{
-    return adoptRef(new FEDropShadow(filter, stdX, stdY, dx, dy, shadowColor, shadowOpacity));
-}
-
-void FEDropShadow::determineAbsolutePaintRect()
-{
-    Filter* filter = this->filter();
-    ASSERT_UNUSED(filter, filter);
-
-    FloatRect absolutePaintRect = mapRect(inputEffect(0)->absolutePaintRect());
-
-    if (clipsToBounds())
-        absolutePaintRect.intersect(maxEffectRect());
-    else
-        absolutePaintRect.unite(maxEffectRect());
-
-    setAbsolutePaintRect(enclosingIntRect(absolutePaintRect));
-}
-
-FloatRect FEDropShadow::mapRect(const FloatRect& rect, bool forward)
-{
-    FloatRect result = rect;
-    Filter* filter = this->filter();
-    ASSERT(filter);
-
-    FloatRect offsetRect = rect;
-    if (forward)
-        offsetRect.move(filter->applyHorizontalScale(m_dx), filter->applyVerticalScale(m_dy));
-    else
-        offsetRect.move(-filter->applyHorizontalScale(m_dx), -filter->applyVerticalScale(m_dy));
-    result.unite(offsetRect);
-
-    unsigned kernelSizeX = 0;
-    unsigned kernelSizeY = 0;
-    FEGaussianBlur::calculateKernelSize(filter, kernelSizeX, kernelSizeY, m_stdX, m_stdY);
-
-    // We take the half kernel size and multiply it with three, because we run box blur three times.
-    result.inflateX(3 * kernelSizeX * 0.5f);
-    result.inflateY(3 * kernelSizeY * 0.5f);
-    return result;
-}
-
-void FEDropShadow::applySoftware()
-{
-    FilterEffect* in = inputEffect(0);
-
-    ImageBuffer* resultImage = createImageBufferResult();
-    if (!resultImage)
-        return;
-
-    Filter* filter = this->filter();
-    FloatSize blurRadius(filter->applyHorizontalScale(m_stdX), filter->applyVerticalScale(m_stdY));
-    FloatSize offset(filter->applyHorizontalScale(m_dx), filter->applyVerticalScale(m_dy));
-
-    FloatRect drawingRegion = drawingRegionOfInputImage(in->absolutePaintRect());
-    GraphicsContext* resultContext = resultImage->context();
-    ASSERT(resultContext);
-
-    SkAutoTUnref<SkImageFilter> blurFilter(new SkBlurImageFilter(blurRadius.width(), blurRadius.height()));
-    SkAutoTUnref<SkColorFilter> colorFilter(SkColorFilter::CreateModeFilter(m_shadowColor.rgb(), SkXfermode::kSrcIn_Mode));
-    SkPaint paint;
-    paint.setImageFilter(blurFilter.get());
-    paint.setColorFilter(colorFilter.get());
-    paint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
-    RefPtr<Image> image = in->asImageBuffer()->copyImage(DontCopyBackingStore);
-
-    RefPtr<NativeImageSkia> nativeImage = image->nativeImageForCurrentFrame();
-
-    if (!nativeImage)
-        return;
-
-    resultContext->drawBitmap(nativeImage->bitmap(), drawingRegion.x() + offset.width(), drawingRegion.y() + offset.height(), &paint);
-    resultContext->drawBitmap(nativeImage->bitmap(), drawingRegion.x(), drawingRegion.y());
-}
-
-PassRefPtr<SkImageFilter> FEDropShadow::createImageFilter(SkiaImageFilterBuilder* builder)
-{
-    RefPtr<SkImageFilter> input(builder->build(inputEffect(0), operatingColorSpace()));
-    float dx = filter()->applyHorizontalScale(m_dx);
-    float dy = filter()->applyVerticalScale(m_dy);
-    float stdX = filter()->applyHorizontalScale(m_stdX);
-    float stdY = filter()->applyHorizontalScale(m_stdY);
-    SkImageFilter::CropRect cropRect = getCropRect(builder->cropOffset());
-    return adoptRef(new SkDropShadowImageFilter(SkFloatToScalar(dx), SkFloatToScalar(dy), SkFloatToScalar(stdX), SkFloatToScalar(stdY), m_shadowColor.rgb(), input.get(), &cropRect));
-}
-
-
-TextStream& FEDropShadow::externalRepresentation(TextStream& ts, int indent) const
-{
-    writeIndent(ts, indent);
-    ts << "[feDropShadow";
-    FilterEffect::externalRepresentation(ts);
-    ts << " stdDeviation=\"" << m_stdX << ", " << m_stdY << "\" dx=\"" << m_dx << "\" dy=\"" << m_dy << "\" flood-color=\"" << m_shadowColor.nameForRenderTreeAsText() <<"\" flood-opacity=\"" << m_shadowOpacity << "]\n";
-    inputEffect(0)->externalRepresentation(ts, indent + 1);
-    return ts;
-}
-
-} // namespace WebCore