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f20b17a2ae
The size of the LTO build of the engine with the dylib compressed is as follows: ```sh $ du -k libFlutter* 5236 libFlutter.dylib.tar.gz 4324 libFlutterSlimpeller.dylib.tar.gz ``` Sizes are in KiB. This represents a binary size reduction of 17.41% of the compressed artifacts. The compression ratios will likely differ based on the compression scheme. Uncompressed, the sizes are: ```sh $ du -k libFlutter* 16920 libFlutter.dylib 14044 libFlutterSlimpeller.dylib ``` This represents a binary size reduction of 16.99% which is in the same ballpark. The really mucky bit was backing out the raster cache and persistent cache. I want to clean that up in a later patch so that those TUs are part of a separate submodule. Opting out of Impeller will lead to a fatal log at startup saying the opt-out is disallowed. Fixes https://github.com/flutter/flutter/issues/126606
33 lines
1008 B
C++
33 lines
1008 B
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#if !SLIMPELLER
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#include "flutter/flow/raster_cache_key.h"
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#include <optional>
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#include "flutter/flow/layers/container_layer.h"
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#include "flutter/flow/layers/display_list_layer.h"
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#include "flutter/flow/layers/layer.h"
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namespace flutter {
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std::optional<std::vector<RasterCacheKeyID>> RasterCacheKeyID::LayerChildrenIds(
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const Layer* layer) {
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FML_DCHECK(layer->as_container_layer());
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auto& children_layers = layer->as_container_layer()->layers();
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auto children_count = children_layers.size();
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if (children_count == 0) {
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return std::nullopt;
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}
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std::vector<RasterCacheKeyID> ids;
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std::transform(
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children_layers.begin(), children_layers.end(), std::back_inserter(ids),
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[](auto& layer) -> RasterCacheKeyID { return layer->caching_key_id(); });
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return ids;
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}
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} // namespace flutter
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#endif // !SLIMPELLER
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