1 // Copyright 2017 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "cc/paint/decode_stashing_image_provider.h"
6 
7 namespace cc {
DecodeStashingImageProvider(ImageProvider * source_provider)8 DecodeStashingImageProvider::DecodeStashingImageProvider(
9     ImageProvider* source_provider)
10     : source_provider_(source_provider) {
11   DCHECK(source_provider_);
12 }
13 DecodeStashingImageProvider::~DecodeStashingImageProvider() = default;
14 
GetRasterContent(const DrawImage & draw_image)15 ImageProvider::ScopedResult DecodeStashingImageProvider::GetRasterContent(
16     const DrawImage& draw_image) {
17   // TODO(xidachen): Ensure this function works with paint worklet generated
18   // images.
19   auto decode = source_provider_->GetRasterContent(draw_image);
20   if (!decode.needs_unlock())
21     return decode;
22 
23   // No need to add any destruction callback to the returned image. The images
24   // decoded here match the lifetime of this provider.
25   auto result = ScopedResult(decode.decoded_image());
26   decoded_images_->push_back(std::move(decode));
27   return result;
28 }
29 
Reset()30 void DecodeStashingImageProvider::Reset() {
31   decoded_images_->clear();
32 }
33 
34 }  // namespace cc
35