src/third_party/skia/src/effects/SkComposeImageFilter.cpp

   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
  13 SkComposeImageFilter::~SkComposeImageFilter() {
  14 }
  15
  16 bool 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
  29 bool 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
  39 SkFlattenable* 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
  45 SkComposeImageFilter::SkComposeImageFilter(SkReadBuffer& buffer)
  46   : INHERITED(2, buffer) {
  47 }
  48 #endif