1 /*
2  * Copyright (C) 2015 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 ANDROID_NV_IMPORTER_H_
18 #define ANDROID_NV_IMPORTER_H_
19 
20 #include "drmresources.h"
21 #include "importer.h"
22 
23 #include <stdatomic.h>
24 
25 #include <hardware/gralloc.h>
26 
27 namespace android {
28 
29 class NvImporter : public Importer {
30  public:
31   NvImporter(DrmResources *drm);
32   virtual ~NvImporter();
33 
34   int Init();
35 
36   virtual int ImportBuffer(buffer_handle_t handle, hwc_drm_bo_t *bo);
37   virtual int ReleaseBuffer(hwc_drm_bo_t *bo);
38 
39  private:
40   typedef struct NvBuffer {
41     NvImporter *importer;
42     hwc_drm_bo_t bo;
43     atomic_int ref;
44   } NvBuffer_t;
45 
46   static void NvGrallocRelease(void *nv_buffer);
47   void ReleaseBufferImpl(hwc_drm_bo_t *bo);
48 
49   NvBuffer_t *GrallocGetNvBuffer(buffer_handle_t handle);
50   int GrallocSetNvBuffer(buffer_handle_t handle, NvBuffer_t *buf);
51 
52   DrmResources *drm_;
53 
54   const gralloc_module_t *gralloc_;
55 };
56 }
57 
58 #endif
59