mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
58e84c8bf0
* Re-land "Support multiple shells in a single process. (#4932)" This reverts commit 723c7d01439da4261bc836075fb55651ce9e7f03.
52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
// Copyright 2017 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#ifndef FLUTTER_FLOW_RASTER_CACHE_KEY_H_
|
|
#define FLUTTER_FLOW_RASTER_CACHE_KEY_H_
|
|
|
|
#include <unordered_map>
|
|
#include "flutter/flow/matrix_decomposition.h"
|
|
#include "lib/fxl/macros.h"
|
|
#include "third_party/skia/include/core/SkImage.h"
|
|
#include "third_party/skia/include/core/SkPicture.h"
|
|
|
|
namespace flow {
|
|
|
|
class RasterCacheKey {
|
|
public:
|
|
RasterCacheKey(const SkPicture& picture, const MatrixDecomposition& matrix)
|
|
: picture_id_(picture.uniqueID()),
|
|
scale_key_(SkISize::Make(matrix.scale().x() * 1e3,
|
|
matrix.scale().y() * 1e3)) {}
|
|
|
|
uint32_t picture_id() const { return picture_id_; }
|
|
|
|
const SkISize& scale_key() const { return scale_key_; }
|
|
|
|
struct Hash {
|
|
std::size_t operator()(RasterCacheKey const& key) const {
|
|
return key.picture_id_;
|
|
}
|
|
};
|
|
|
|
struct Equal {
|
|
constexpr bool operator()(const RasterCacheKey& lhs,
|
|
const RasterCacheKey& rhs) const {
|
|
return lhs.picture_id_ == rhs.picture_id_ &&
|
|
lhs.scale_key_ == rhs.scale_key_;
|
|
}
|
|
};
|
|
|
|
template <class Value>
|
|
using Map = std::unordered_map<RasterCacheKey, Value, Hash, Equal>;
|
|
|
|
private:
|
|
uint32_t picture_id_;
|
|
SkISize scale_key_;
|
|
};
|
|
|
|
} // namespace flow
|
|
|
|
#endif // FLUTTER_FLOW_RASTER_CACHE_KEY_H_
|