Revert "Implement a resize image filter."

src/effects/SkResizeImageFilter.cpp

-/*
- * Copyright 2013 The Android Open Source Project
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "SkResizeImageFilter.h"
-#include "SkBitmap.h"
-#include "SkCanvas.h"
-#include "SkDevice.h"
-#include "SkColorPriv.h"
-#include "SkFlattenableBuffers.h"
-#include "SkMatrix.h"
-#include "SkRect.h"
-
-SkResizeImageFilter::SkResizeImageFilter(SkScalar sx, SkScalar sy, SkPaint::FilterLevel filterLevel,
-                                         SkImageFilter* input)
-  : INHERITED(input),
-    fSx(sx),
-    fSy(sy),
-    fFilterLevel(filterLevel) {
-}
-
-SkResizeImageFilter::SkResizeImageFilter(SkFlattenableReadBuffer& buffer)
-  : INHERITED(1, buffer) {
-    fSx = buffer.readScalar();
-    fSy = buffer.readScalar();
-    fFilterLevel = static_cast<SkPaint::FilterLevel>(buffer.readInt());
-}
-
-void SkResizeImageFilter::flatten(SkFlattenableWriteBuffer& buffer) const {
-    this->INHERITED::flatten(buffer);
-    buffer.writeScalar(fSx);
-    buffer.writeScalar(fSy);
-    buffer.writeInt(fFilterLevel);
-}
-
-SkResizeImageFilter::~SkResizeImageFilter() {
-}
-
-bool SkResizeImageFilter::onFilterImage(Proxy* proxy,
-                                         const SkBitmap& source,
-                                         const SkMatrix& matrix,
-                                         SkBitmap* result,
-                                         SkIPoint* offset) {
-    SkBitmap src = source;
-    SkIPoint srcOffset = SkIPoint::Make(0, 0);
-    if (getInput(0) && !getInput(0)->filterImage(proxy, source, matrix, &src, &srcOffset)) {
-        return false;
-    }
-
-    SkRect dstRect;
-    SkIRect srcBounds, dstBounds;
-    src.getBounds(&srcBounds);
-    srcBounds.offset(srcOffset);
-    SkRect srcRect = SkRect::Make(srcBounds);
-    SkMatrix dstMatrix;
-    dstMatrix.setScale(fSx, fSy);
-    dstMatrix.mapRect(&dstRect, srcRect);
-    dstRect.roundOut(&dstBounds);
-
-    SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(dstBounds.width(), dstBounds.height()));
-    if (NULL == device.get()) {
-        return false;
-    }
-
-    SkCanvas canvas(device.get());
-    canvas.translate(-SkIntToScalar(dstBounds.fLeft), -SkIntToScalar(dstBounds.fTop));
-    SkPaint paint;
-
-    paint.setXfermodeMode(SkXfermode::kSrc_Mode);
-    paint.setFilterLevel(fFilterLevel);
-    canvas.concat(dstMatrix);
-    canvas.drawBitmap(src, srcRect.left(), srcRect.top(), &paint);
-
-    *result = device.get()->accessBitmap(false);
-    offset->fX = dstBounds.fLeft;
-    offset->fY = dstBounds.fTop;
-    return true;
-}