Delete SkRectShaderImageFilter

src/effects/SkRectShaderImageFilter.cpp

-/*
- * Copyright 2013 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "SkRectShaderImageFilter.h"
-#include "SkBitmap.h"
-#include "SkCanvas.h"
-#include "SkDevice.h"
-#include "SkReadBuffer.h"
-#include "SkWriteBuffer.h"
-#include "SkShader.h"
-
-SkImageFilter* SkRectShaderImageFilter::Create(SkShader* s, const SkRect& rect) {
-    SkASSERT(s);
-    uint32_t flags = CropRect::kHasAll_CropEdge;
-    if (rect.width() == 0 || rect.height() == 0) {
-        flags = 0x0;
-    }
-    CropRect cropRect(rect, flags);
-    return s ? new SkRectShaderImageFilter(s, &cropRect) : nullptr;
-}
-
-SkImageFilter* SkRectShaderImageFilter::Create(SkShader* s, const CropRect* cropRect) {
-    SkASSERT(s);
-    return s ? new SkRectShaderImageFilter(s, cropRect) : nullptr;
-}
-
-SkRectShaderImageFilter::SkRectShaderImageFilter(SkShader* s, const CropRect* cropRect)
-  : INHERITED(0, nullptr, cropRect)
-  , fShader(SkRef(s)) {
-}
-
-SkFlattenable* SkRectShaderImageFilter::CreateProc(SkReadBuffer& buffer) {
-    SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 0);
-    SkAutoTUnref<SkShader> shader(buffer.readShader());
-    return Create(shader.get(), &common.cropRect());
-}
-
-void SkRectShaderImageFilter::flatten(SkWriteBuffer& buffer) const {
-    this->INHERITED::flatten(buffer);
-    buffer.writeFlattenable(fShader);
-}
-
-SkRectShaderImageFilter::~SkRectShaderImageFilter() {
-    fShader->unref();
-}
-
-bool SkRectShaderImageFilter::onFilterImage(Proxy* proxy,
-                                            const SkBitmap& source,
-                                            const Context& ctx,
-                                            SkBitmap* result,
-                                            SkIPoint* offset) const {
-    SkIRect bounds;
-    if (!this->applyCropRect(ctx, source, SkIPoint::Make(0, 0), &bounds)) {
-        return false;
-    }
-
-    SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(bounds.width(),
-                                                          bounds.height()));
-    if (nullptr == device.get()) {
-        return false;
-    }
-    SkCanvas canvas(device.get());
-
-    SkPaint paint;
-    SkMatrix matrix(ctx.ctm());
-    matrix.postTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.top()));
-    SkSafeUnref(paint.setShader(fShader->newWithLocalMatrix(matrix)));
-
-    SkRect rect = SkRect::MakeWH(SkIntToScalar(bounds.width()), SkIntToScalar(bounds.height()));
-    canvas.drawRect(rect, paint);
-
-    *result = device.get()->accessBitmap(false);
-    offset->fX = bounds.fLeft;
-    offset->fY = bounds.fTop;
-    return true;
-}
-
-bool SkRectShaderImageFilter::canComputeFastBounds() const {
-    // http:skbug.com/4627: "make computeFastBounds and onFilterBounds() CropRect-aware"
-    // computeFastBounds() doesn't currently take the crop rect into account,
-    // so we can't compute it. If a full crop rect is set, we should return true here.
-    return false;
-}
-
-#ifndef SK_IGNORE_TO_STRING
-void SkRectShaderImageFilter::toString(SkString* str) const {
-    str->appendf("SkRectShaderImageFilter: (");
-    str->append(")");
-}
-#endif