1 /*
2 * Copyright 2018 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "MemoryCache.h"
9 #include "SkBase64.h"
10
11 // Change this to 1 to log cache hits/misses/stores using SkDebugf.
12 #define LOG_MEMORY_CACHE 0
13
data_to_str(const SkData & data)14 static SkString data_to_str(const SkData& data) {
15 size_t encodeLength = SkBase64::Encode(data.data(), data.size(), nullptr);
16 SkString str;
17 str.resize(encodeLength);
18 SkBase64::Encode(data.data(), data.size(), str.writable_str());
19 static constexpr size_t kMaxLength = 60;
20 static constexpr char kTail[] = "...";
21 static const size_t kTailLen = strlen(kTail);
22 bool overlength = encodeLength > kMaxLength;
23 if (overlength) {
24 str = SkString(str.c_str(), kMaxLength - kTailLen);
25 str.append(kTail);
26 }
27 return str;
28 }
29
30 namespace sk_gpu_test {
31
load(const SkData & key)32 sk_sp<SkData> MemoryCache::load(const SkData& key) {
33 auto result = fMap.find(key);
34 if (result == fMap.end()) {
35 if (LOG_MEMORY_CACHE) {
36 SkDebugf("Load Key: %s\n\tNot Found.\n\n", data_to_str(key).c_str());
37 }
38 ++fCacheMissCnt;
39 return nullptr;
40 }
41 if (LOG_MEMORY_CACHE) {
42 SkDebugf("Load Key: %s\n\tFound Data: %s\n\n", data_to_str(key).c_str(),
43 data_to_str(*result->second).c_str());
44 }
45 return result->second;
46 }
47
store(const SkData & key,const SkData & data)48 void MemoryCache::store(const SkData& key, const SkData& data) {
49 if (LOG_MEMORY_CACHE) {
50 SkDebugf("Store Key: %s\n\tData: %s\n\n", data_to_str(key).c_str(),
51 data_to_str(data).c_str());
52 }
53 fMap[Key(key)] = SkData::MakeWithCopy(data.data(), data.size());
54 }
55
56 } // namespace sk_gpu_test
57