GpuMemoryTracker.h revision 45ec62ba72c5017fae7d8baab20bfb0d4c99c627 
1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16#pragma once
17
18#include <cutils/log.h>
19#include <pthread.h>
20#include <ostream>
21
22namespace android {
23namespace uirenderer {
24
25extern pthread_t gGpuThread;
26
27#define ASSERT_GPU_THREAD() LOG_ALWAYS_FATAL_IF( \
28        !pthread_equal(gGpuThread, pthread_self()), \
29        "Error, %p of type %d (size=%d) used on wrong thread! cur thread %lu " \
30        "!= gpu thread %lu", this, static_cast<int>(mType), mSize, \
31        pthread_self(), gGpuThread)
32
33enum class GpuObjectType {
34    Texture = 0,
35    OffscreenBuffer,
36    Layer,
37
38    TypeCount,
39};
40
41class GpuMemoryTracker {
42public:
43    GpuObjectType objectType() { return mType; }
44    int objectSize() { return mSize; }
45
46    static void onGpuContextCreated();
47    static void onGpuContextDestroyed();
48    static void dump();
49    static void dump(std::ostream& stream);
50    static int getInstanceCount(GpuObjectType type);
51    static int getTotalSize(GpuObjectType type);
52    static void onFrameCompleted();
53
54protected:
55    explicit GpuMemoryTracker(GpuObjectType type) : mType(type) {
56        ASSERT_GPU_THREAD();
57        startTrackingObject();
58    }
59
60    ~GpuMemoryTracker() {
61        notifySizeChanged(0);
62        stopTrackingObject();
63    }
64
65    void notifySizeChanged(int newSize);
66
67private:
68    void startTrackingObject();
69    void stopTrackingObject();
70
71    int mSize = 0;
72    GpuObjectType mType;
73};
74
75} // namespace uirenderer
76} // namespace android;
77