dawn-cmake/src/dawn_native/CachedObject.h
Loko Kung 8d195d511d Refactors dawn_native objects for list tracking and adds destroy skeleton API.
Adds generated headers in dawn_native for object type tracking similar to that used in dawn_wire. Splits ObjectBase into ObjectBase and ApiObjectBase for clearly differentiation, and adds virtual function to identify the type of ApiObjects. Updates error generation to utilize new object typing for generating messages.

Bug: dawn:628, dawn:840, dawn:563
Change-Id: Ia4f831fcbfb29a70ed5a35d47ed622921e744c84
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/64820
Commit-Queue: Loko Kung <lokokung@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
2021-09-28 15:40:01 +00:00

54 lines
1.7 KiB
C++

// Copyright 2019 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef DAWNNATIVE_CACHED_OBJECT_H_
#define DAWNNATIVE_CACHED_OBJECT_H_
#include <cstddef>
namespace dawn_native {
// Some objects are cached so that instead of creating new duplicate objects,
// we increase the refcount of an existing object.
// When an object is successfully created, the device should call
// SetIsCachedReference() and insert the object into the cache.
class CachedObject {
public:
bool IsCachedReference() const;
// Functor necessary for the unordered_set<CachedObject*>-based cache.
struct HashFunc {
size_t operator()(const CachedObject* obj) const;
};
size_t GetContentHash() const;
void SetContentHash(size_t contentHash);
private:
friend class DeviceBase;
void SetIsCachedReference();
bool mIsCachedReference = false;
// Called by ObjectContentHasher upon creation to record the object.
virtual size_t ComputeContentHash() = 0;
size_t mContentHash = 0;
bool mIsContentHashInitialized = false;
};
} // namespace dawn_native
#endif // DAWNNATIVE_CACHED_OBJECT_H_