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1 /*
2  * Copyright (C) 2017 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 #ifndef GUEST_HALS_CAMERA_GRALLOCMODULE_H_
17 #define GUEST_HALS_CAMERA_GRALLOCMODULE_H_
18 
19 #include <hardware/gralloc.h>
20 
21 class GrallocModule {
22  public:
getInstance()23   static GrallocModule &getInstance() {
24     static GrallocModule instance;
25     return instance;
26   }
27 
lock(buffer_handle_t handle,int usage,int l,int t,int w,int h,void ** vaddr)28   int lock(buffer_handle_t handle, int usage, int l, int t, int w, int h,
29            void **vaddr) {
30     return mModule->lock(mModule, handle, usage, l, t, w, h, vaddr);
31   }
32 
33 #ifdef GRALLOC_MODULE_API_VERSION_0_2
lock_ycbcr(buffer_handle_t handle,int usage,int l,int t,int w,int h,struct android_ycbcr * ycbcr)34   int lock_ycbcr(buffer_handle_t handle, int usage, int l, int t, int w, int h,
35                  struct android_ycbcr *ycbcr) {
36     return mModule->lock_ycbcr(mModule, handle, usage, l, t, w, h, ycbcr);
37   }
38 #endif
39 
unlock(buffer_handle_t handle)40   int unlock(buffer_handle_t handle) {
41     return mModule->unlock(mModule, handle);
42   }
43 
44  private:
GrallocModule()45   GrallocModule() {
46     const hw_module_t *module = NULL;
47     int ret = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module);
48     if (ret) {
49       ALOGE("%s: Failed to get gralloc module: %d", __FUNCTION__, ret);
50     }
51     mModule = reinterpret_cast<const gralloc_module_t *>(module);
52   }
53   const gralloc_module_t *mModule;
54 };
55 
56 #endif  // GUEST_HALS_CAMERA_GRALLOCMODULE_H_
57