1 /*
2  * Copyright (C) 2020 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_BUFFERINFOGETTER_H_
18 #define ANDROID_BUFFERINFOGETTER_H_
19 
20 #include <drm/drm_fourcc.h>
21 #include <hardware/gralloc.h>
22 
23 #include "drm/DrmDevice.h"
24 #include "drmhwcgralloc.h"
25 
26 #ifndef DRM_FORMAT_INVALID
27 #define DRM_FORMAT_INVALID 0
28 #endif
29 
30 namespace android {
31 
32 class BufferInfoGetter {
33  public:
~BufferInfoGetter()34   virtual ~BufferInfoGetter() {
35   }
36 
37   virtual int ConvertBoInfo(buffer_handle_t handle, hwc_drm_bo_t *bo) = 0;
38 
39   bool IsHandleUsable(buffer_handle_t handle);
40 
41   static BufferInfoGetter *GetInstance();
42 
43   static bool IsDrmFormatRgb(uint32_t drm_format);
44 };
45 
46 class LegacyBufferInfoGetter : public BufferInfoGetter {
47  public:
48   using BufferInfoGetter::BufferInfoGetter;
49 
50   int Init();
51 
52   int ConvertBoInfo(buffer_handle_t handle, hwc_drm_bo_t *bo) override = 0;
53 
54   static LegacyBufferInfoGetter *CreateInstance();
55 
56   static uint32_t ConvertHalFormatToDrm(uint32_t hal_format);
57   const gralloc_module_t *gralloc_;
58 };
59 
60 #define LEGACY_BUFFER_INFO_GETTER(getter_)                           \
61   LegacyBufferInfoGetter *LegacyBufferInfoGetter::CreateInstance() { \
62     auto *instance = new getter_();                                  \
63     if (!instance)                                                   \
64       return NULL;                                                   \
65                                                                      \
66     int ret = instance->Init();                                      \
67     if (ret) {                                                       \
68       ALOGE("Failed to initialize the " #getter_ " getter %d", ret); \
69       delete instance;                                               \
70       return NULL;                                                   \
71     }                                                                \
72     return instance;                                                 \
73   }
74 
75 }  // namespace android
76 #endif
77