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 <pthread.h>
19#include <ostream>
20
21#include <log/log.h>
22
23namespace android {
24namespace uirenderer {
25
26extern pthread_t gGpuThread;
27
28#define ASSERT_GPU_THREAD() LOG_ALWAYS_FATAL_IF( \
29        !pthread_equal(gGpuThread, pthread_self()), \
30        "Error, %p of type %d (size=%d) used on wrong thread! cur thread %lu " \
31        "!= gpu thread %lu", this, static_cast<int>(mType), mSize, \
32        pthread_self(), gGpuThread)
33
34enum class GpuObjectType {
35    Texture = 0,
36    OffscreenBuffer,
37    Layer,
38
39    TypeCount,
40};
41
42class GpuMemoryTracker {
43public:
44    GpuObjectType objectType() { return mType; }
45    int objectSize() { return mSize; }
46
47    static void onGpuContextCreated();
48    static void onGpuContextDestroyed();
49    static void dump();
50    static void dump(std::ostream& stream);
51    static int getInstanceCount(GpuObjectType type);
52    static int getTotalSize(GpuObjectType type);
53    static void onFrameCompleted();
54
55protected:
56    explicit GpuMemoryTracker(GpuObjectType type) : mType(type) {
57        ASSERT_GPU_THREAD();
58        startTrackingObject();
59    }
60
61    ~GpuMemoryTracker() {
62        notifySizeChanged(0);
63        stopTrackingObject();
64    }
65
66    void notifySizeChanged(int newSize);
67
68private:
69    void startTrackingObject();
70    void stopTrackingObject();
71
72    int mSize = 0;
73    GpuObjectType mType;
74};
75
76} // namespace uirenderer
77} // namespace android;
78