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 HW_EMULATOR_CAMERA_EMULATED_CAMERA_COMMON_H
18 #define HW_EMULATOR_CAMERA_EMULATED_CAMERA_COMMON_H
19 
20 /*
21  * Contains common declarations that are used across the camera emulation.
22  */
23 
24 #include <linux/videodev2.h>
25 #include <hardware/camera.h>
26 
27 /* A helper class that tracks a routine execution.
28  * Basically, it dumps an enry message in its constructor, and an exit message
29  * in its destructor. Use LOGRE() macro (declared bellow) to create instances
30  * of this class at the beginning of the tracked routines / methods.
31  */
32 class HWERoutineTracker {
33 public:
34     /* Constructor that prints an "entry" trace message. */
HWERoutineTracker(const char * name)35     explicit HWERoutineTracker(const char* name)
36             : mName(name) {
37         ALOGV("Entering %s", mName);
38     }
39 
40     /* Destructor that prints a "leave" trace message. */
~HWERoutineTracker()41     ~HWERoutineTracker() {
42         ALOGV("Leaving %s", mName);
43     }
44 
45 private:
46     /* Stores the routine name. */
47     const char* mName;
48 };
49 
50 /* Logs an execution of a routine / method. */
51 #define LOGRE() HWERoutineTracker hwertracker_##__LINE__(__FUNCTION__)
52 
53 /*
54  * min / max macros
55  */
56 
57 #define min(a,b)    (((a) < (b)) ? (a) : (b))
58 #define max(a,b)    (((a) > (b)) ? (a) : (b))
59 
60 #endif  /* HW_EMULATOR_CAMERA_EMULATED_CAMERA_COMMON_H */
61