1 /*
2  * Copyright (C) 2008 The Android Open Source Project
3  * Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  *      http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 #ifndef GRALLOC_GPU_H_
19 #define GRALLOC_GPU_H_
20 
21 #include <errno.h>
22 #include <pthread.h>
23 #include <stdlib.h>
24 #include <string.h>
25 
26 #include <cutils/log.h>
27 
28 #include "gralloc_priv.h"
29 #include "fb_priv.h"
30 
31 namespace gralloc {
32 class IAllocController;
33 class gpu_context_t : public alloc_device_t {
34     public:
35     gpu_context_t(const private_module_t* module,
36                   IAllocController* alloc_ctrl);
37 
38     int gralloc_alloc_buffer(unsigned int size, int usage,
39                              buffer_handle_t* pHandle,
40                              int bufferType, int format,
41                              int width, int height);
42 
43     int free_impl(private_handle_t const* hnd);
44 
45     int alloc_impl(int w, int h, int format, int usage,
46                    buffer_handle_t* pHandle, int* pStride,
47                    unsigned int bufferSize = 0);
48 
49     static int gralloc_alloc(alloc_device_t* dev, int w, int h,
50                              int format, int usage,
51                              buffer_handle_t* pHandle,
52                              int* pStride);
53     int gralloc_alloc_framebuffer_locked(int usage,
54                                          buffer_handle_t* pHandle);
55 
56     int gralloc_alloc_framebuffer(int usage,
57                                   buffer_handle_t* pHandle);
58 
59     static int gralloc_free(alloc_device_t* dev, buffer_handle_t handle);
60 
61     static int gralloc_alloc_size(alloc_device_t* dev,
62                                   int w, int h, int format,
63                                   int usage, buffer_handle_t* pHandle,
64                                   int* pStride, int bufferSize);
65 
66     static int gralloc_close(struct hw_device_t *dev);
67 
68     private:
69    IAllocController* mAllocCtrl;
70     void getGrallocInformationFromFormat(int inputFormat,
71                                          int *bufferType);
72 };
73 }
74 #endif  // GRALLOC_GPU_H
75