DisplayListLogBuffer.h revision 9c1e23baf5bfbebd1aebbd6d9a18c225325567ce 
1/*
2 * Copyright (C) 2011 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
17#ifndef ANDROID_HWUI_DISPLAY_LIST_LOG_BUFFER_H
18#define ANDROID_HWUI_DISPLAY_LIST_LOG_BUFFER_H
19
20#include <utils/Singleton.h>
21#include <stdio.h>
22
23namespace android {
24namespace uirenderer {
25
26class DisplayListLogBuffer: public Singleton<DisplayListLogBuffer> {
27    DisplayListLogBuffer();
28    ~DisplayListLogBuffer();
29
30    friend class Singleton<DisplayListLogBuffer>;
31
32public:
33    void writeCommand(int level, int op);
34    void writeInt(int value);
35    void outputCommands(FILE *file, const char* opNames[]);
36
37    bool isEmpty() {
38        return (mStart == mEnd);
39    }
40
41private:
42    int *mBufferFirst; // where the memory starts
43    int* mStart;       // where the current command stream starts
44    int* mEnd;         // where the current commands end
45    int* mBufferLast;  // where the buffer memory ends
46
47};
48
49}; // namespace uirenderer
50}; // namespace android
51
52#endif // ANDROID_HWUI_DISPLAY_LIST_LOG_BUFFER_H
53