[Impeller] exploit perfect hash for SamplerDescriptor. #57036
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jason-simmons
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The crash is happening because the std::unique_ptr instances in the samplers_ vector will be invalidated if the vector is enlarged and its buffer is reallocated.
The TextureAndSampler struct used by the render pass is holding a std::unique_ptr<Sampler>* to a unique_ptr that may become invalidated.
TextureAndSampler should instead hold the Sampler* raw pointer.
impeller/core/sampler_descriptor.h
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| width_address_mode == o.width_address_mode && | ||
| height_address_mode == o.height_address_mode && | ||
| depth_address_mode == o.depth_address_mode; | ||
| static uint32_t ToKey(const SamplerDescriptor& d) { |
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This should return a uint64_t
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Updated this to use the raw_ptr wrapper type
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…160220) flutter/engine@9b51e30...5eedfef 2024-12-13 [email protected] Normalize round rect bounds when coming from Flutter (flutter/engine#57171) 2024-12-13 [email protected] [ios]enable the webview non tappable workaround by checking subviews recursively (flutter/engine#57168) 2024-12-12 [email protected] removed c style casts and enabled the lint (flutter/engine#57162) 2024-12-12 [email protected] [Impeller] exploit perfect hash for SamplerDescriptor. (flutter/engine#57036) 2024-12-12 [email protected] Reenabled labelling test with a capabilities check. (flutter/engine#57160) 2024-12-12 [email protected] [Impeller] dont print format strings for blend filter and snapshots. (flutter/engine#57105) 2024-12-12 [email protected] Make fl_engine_send_key_event into a standard async function. (flutter/engine#57112) 2024-12-12 [email protected] Roll Fuchsia Linux SDK from HJ57Y3zxqDamI8qkY... to iWMEbVYaNdH8RJmXZ... (flutter/engine#57163) 2024-12-12 [email protected] Migrate FlPlatformChannel tests to FlMockBinaryMessenger (flutter/engine#57140) 2024-12-12 [email protected] Migrate FlBasicMessageChannel tests to FlMockBinaryMessenger (flutter/engine#57115) 2024-12-12 [email protected] Migrate layers and layer_tree to DisplayList/Impeller geometry classes (flutter/engine#57153) 2024-12-12 [email protected] [web] Use CanvasKit to run tests under engine/ (flutter/engine#54786) Also rolling transitive DEPS: fuchsia/sdk/core/linux-amd64 from HJ57Y3zxqDam to iWMEbVYaNdH8 If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-engine-flutter-autoroll Please CC [email protected],[email protected] on the revert to ensure that a human is aware of the problem. To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md
…e#57036) There are only 3 or 4 sampler's active at any given time in a flutter app. rather than store them in a hashmap, just use a vector.
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There are only 3 or 4 sampler's active at any given time in a flutter app. rather than store them in a hashmap, just use a vector.