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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 
22 namespace android {
23 namespace uirenderer {
24 
25 extern 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 
33 enum class GpuObjectType {
34     Texture = 0,
35     OffscreenBuffer,
36     Layer,
37 
38     TypeCount,
39 };
40 
41 class GpuMemoryTracker {
42 public:
objectType()43     GpuObjectType objectType() { return mType; }
objectSize()44     int objectSize() { return mSize; }
45 
46     static void onGLContextCreated();
47     static void onGLContextDestroyed();
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 
54 protected:
GpuMemoryTracker(GpuObjectType type)55     GpuMemoryTracker(GpuObjectType type) : mType(type) {
56         ASSERT_GPU_THREAD();
57         startTrackingObject();
58     }
59 
~GpuMemoryTracker()60     ~GpuMemoryTracker() {
61         notifySizeChanged(0);
62         stopTrackingObject();
63     }
64 
65     void notifySizeChanged(int newSize);
66 
67 private:
68     void startTrackingObject();
69     void stopTrackingObject();
70 
71     int mSize = 0;
72     GpuObjectType mType;
73 };
74 
75 } // namespace uirenderer
76 } // namespace android;
77