1/*
2 * Copyright 2013 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#include "SkBitmap.h"
9#include "SkComposeImageFilter.h"
10#include "SkReadBuffer.h"
11#include "SkWriteBuffer.h"
12
13SkComposeImageFilter::~SkComposeImageFilter() {
14}
15
16bool SkComposeImageFilter::onFilterImage(Proxy* proxy,
17                                         const SkBitmap& src,
18                                         const Context& ctx,
19                                         SkBitmap* result,
20                                         SkIPoint* offset) const {
21    SkImageFilter* outer = getInput(0);
22    SkImageFilter* inner = getInput(1);
23
24    SkBitmap tmp;
25    return inner->filterImage(proxy, src, ctx, &tmp, offset) &&
26           outer->filterImage(proxy, tmp, ctx, result, offset);
27}
28
29bool SkComposeImageFilter::onFilterBounds(const SkIRect& src,
30                                          const SkMatrix& ctm,
31                                          SkIRect* dst) const {
32    SkImageFilter* outer = getInput(0);
33    SkImageFilter* inner = getInput(1);
34
35    SkIRect tmp;
36    return inner->filterBounds(src, ctm, &tmp) && outer->filterBounds(tmp, ctm, dst);
37}
38
39SkFlattenable* SkComposeImageFilter::CreateProc(SkReadBuffer& buffer) {
40    SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 2);
41    return SkComposeImageFilter::Create(common.getInput(0), common.getInput(1));
42}
43
44#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
45SkComposeImageFilter::SkComposeImageFilter(SkReadBuffer& buffer)
46  : INHERITED(2, buffer) {
47}
48#endif
49