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 
17 #ifndef SIMPLE_H
18 #define SIMPLE_H
19 
20 #include <stdint.h>
21 #include <sys/cdefs.h>
22 #include <sys/types.h>
23 
24 #include <cutils/native_handle.h>
25 
26 #include <hardware/hardware.h>
27 
28 __BEGIN_DECLS
29 
30 #define FORGROUND_COLOR "#133742"
31 #define ACTOR_COLOR "#424242"
32 
33 /* Simple example */
34 typedef struct simple_t {
35     /*
36      * Common methods of the simple device.
37      */
38     struct hw_device_t common;
39 
40     /* resolution of the framebuffer's display panel in pixel per inch*/
41     const float     xdpi;
42     const float     ydpi;
43 
44     /* framebuffer's display panel refresh rate in frames per second */
45     const float     fps;
46 
47     int (*setSwapInterval)(struct simple_t* window,
48             int interval);
49 
50     /*
51      * This hook is OPTIONAL.
52      */
53     int (*setUpdateRect)(struct simple_t* window,
54             int left, int top, int width, int height);
55 
56 } simple_t;
57 
58 /* Holds pixel coordinates */
59 typedef struct {
60     int px;
61     int py;
62 
63     /*
64      * If non NULL it will be caused by SurfaceFlinger on dumpsys
65      */
66     void (*doDump)(int foo, char *buff, int buff_len);
67 
68 } simple_location_t;
69 
70 /* convenience API for coloring */
71 
72 static inline int showColor(const struct hw_module_t* module,
73         struct simple_t** device) {
74     return module->methods->open(module,
75             FORGROUND_COLOR, (struct simple_t**)device);
76 }
77 
78 static inline int hideColor(struct simple_t* device) {
79     return device->common.close(&device->common);
80 }
81 
82 __END_DECLS
83 
84 #endif  // SIMPLE_H
85