| // Copyright 2013 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "flutter/display_list/image/dl_image_skia.h" |
| |
| namespace flutter { |
| |
| DlImageSkia::DlImageSkia(sk_sp<SkImage> image) : image_(std::move(image)) {} |
| |
| // |DlImage| |
| DlImageSkia::~DlImageSkia() = default; |
| |
| // |DlImage| |
| sk_sp<SkImage> DlImageSkia::skia_image() const { |
| return image_; |
| }; |
| |
| // |DlImage| |
| std::shared_ptr<impeller::Texture> DlImageSkia::impeller_texture() const { |
| return nullptr; |
| } |
| |
| // |DlImage| |
| bool DlImageSkia::isOpaque() const { |
| return image_ ? image_->isOpaque() : false; |
| } |
| |
| // |DlImage| |
| bool DlImageSkia::isTextureBacked() const { |
| return image_ ? image_->isTextureBacked() : false; |
| } |
| |
| // |DlImage| |
| bool DlImageSkia::isUIThreadSafe() const { |
| // Technically if the image is null then we are thread-safe, and possibly |
| // if the image is constructed from a heap raster as well, but there |
| // should never be a leak of an instance of this class into any data that |
| // is shared with the UI thread, regardless of value. |
| // All images intended to be shared with the UI thread should be constructed |
| // via one of the DlImage subclasses designed for that purpose. |
| return false; |
| } |
| |
| // |DlImage| |
| SkISize DlImageSkia::dimensions() const { |
| return image_ ? image_->dimensions() : SkISize::MakeEmpty(); |
| } |
| |
| // |DlImage| |
| size_t DlImageSkia::GetApproximateByteSize() const { |
| auto size = sizeof(*this); |
| if (image_) { |
| const auto& info = image_->imageInfo(); |
| const auto kMipmapOverhead = image_->hasMipmaps() ? 4.0 / 3.0 : 1.0; |
| const size_t image_byte_size = info.computeMinByteSize() * kMipmapOverhead; |
| size += image_byte_size; |
| } |
| return size; |
| } |
| |
| } // namespace flutter |