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89 lines
2.9 KiB
89 lines
2.9 KiB
// Copyright (C) 2021 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "ShaderCache.h"
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#include "base/MruCache.h"
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#include <string.h>
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#include <cstdio>
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#include <map>
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#include <vector>
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namespace {
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using BlobCacheType = std::vector<uint8_t>;
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template <class K, class V>
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class CacheObserver : android::base::MruCache<K, V>::MruCacheObserver {
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public:
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int count = 0;
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CacheObserver(android::base::MruCache<K, V>* cacheReference) {
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mCacheRef = cacheReference;
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cacheReference->setObserver(this);
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}
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void cacheChanged() override {
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// TODO: This will dictate when we flatten the cache.
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}
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private:
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android::base::MruCache<K, V>* mCacheRef;
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};
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template <class K, class V>
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class CacheFlattener : public android::base::MruCache<K, V>::CacheFlattener {
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using MruCache = std::map<typename android::base::MruCache<K, V>::template EntryWithSize<K>,
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typename android::base::MruCache<K, V>::template EntryWithSize<V>>;
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public:
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void handleFlatten(MruCache &mCache, void* buf, size_t bufSize) {
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// TODO: This will handle the actual serialization.
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}
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};
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CacheFlattener<BlobCacheType, BlobCacheType> testFlattener;
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// 3200 is ~32MB of shaders, very rough estimate.
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android::base::MruCache<BlobCacheType, BlobCacheType> mruCache(3200, &testFlattener);
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CacheObserver<BlobCacheType, BlobCacheType> sss(&mruCache);
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}
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void SetBlob(const void* key, EGLsizeiANDROID keySize, const void* value, EGLsizeiANDROID valueSize) {
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std::vector<uint8_t> keyVec(keySize);
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memcpy(keyVec.data(), key, keySize);
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std::vector<uint8_t> valueVec(valueSize);
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memcpy(valueVec.data(), value, valueSize);
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mruCache.put(keyVec, keySize, std::move(valueVec), valueSize);
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}
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EGLsizeiANDROID GetBlob(const void* key, EGLsizeiANDROID keySize, void* value, EGLsizeiANDROID valueSize) {
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std::vector<uint8_t> keyVec(keySize);
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memcpy(keyVec.data(), key, keySize);
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const std::vector<uint8_t> *result;
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auto found = mruCache.get(keyVec, &result);
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if (!found) {
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return 0;
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}
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if (result->size() <= static_cast<size_t>(valueSize)) {
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memcpy(value, result->data(), result->size());
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}
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// If the size provided was too small, return the right size regardless.
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return result->size();
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}
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