gpu.h revision 513ddc2124abf90c63af41999201f0d2031af0c8 
1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 * Copyright (c) 2011-2013, 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#include <cutils/ashmem.h>
28
29#include "gralloc_priv.h"
30#include "fb_priv.h"
31
32namespace gralloc {
33class IAllocController;
34class gpu_context_t : public alloc_device_t {
35    public:
36    gpu_context_t(const private_module_t* module,
37                  IAllocController* alloc_ctrl);
38
39    int gralloc_alloc_buffer(size_t size, int usage,
40                             buffer_handle_t* pHandle,
41                             int bufferType, int format,
42                             int width, int height);
43
44    int free_impl(private_handle_t const* hnd);
45
46    int alloc_impl(int w, int h, int format, int usage,
47                   buffer_handle_t* pHandle, int* pStride,
48                   size_t bufferSize = 0);
49
50    static int gralloc_alloc(alloc_device_t* dev, int w, int h,
51                             int format, int usage,
52                             buffer_handle_t* pHandle,
53                             int* pStride);
54    int gralloc_alloc_framebuffer_locked(size_t size, int usage,
55                                         buffer_handle_t* pHandle);
56
57    int gralloc_alloc_framebuffer(size_t size, int usage,
58                                  buffer_handle_t* pHandle);
59
60    static int gralloc_free(alloc_device_t* dev, buffer_handle_t handle);
61
62    static int gralloc_alloc_size(alloc_device_t* dev,
63                                  int w, int h, int format,
64                                  int usage, buffer_handle_t* pHandle,
65                                  int* pStride, int bufferSize);
66
67    static int gralloc_close(struct hw_device_t *dev);
68
69    private:
70   IAllocController* mAllocCtrl;
71    void getGrallocInformationFromFormat(int inputFormat,
72                                         int *bufferType);
73};
74}
75#endif  // GRALLOC_GPU_H
76