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 
17 #pragma once
18 
19 #include <stddef.h>
20 #include <stdint.h>
21 #include <sys/types.h>
22 
23 #include <memory>
24 
25 #include <adf/adf.h>
26 
27 #include "graphics.h"
28 #include "minui/minui.h"
29 
30 class GRSurfaceAdf : public GRSurface {
31  public:
32   ~GRSurfaceAdf() override;
33 
34   static std::unique_ptr<GRSurfaceAdf> Create(int intf_fd, const drm_mode_modeinfo* mode,
35                                               __u32 format, int* err);
36 
data()37   uint8_t* data() override {
38     return mmapped_buffer_;
39   }
40 
41  private:
42   friend class MinuiBackendAdf;
43 
GRSurfaceAdf(size_t width,size_t height,size_t row_bytes,size_t pixel_bytes,__u32 offset,__u32 pitch,int fd)44   GRSurfaceAdf(size_t width, size_t height, size_t row_bytes, size_t pixel_bytes, __u32 offset,
45                __u32 pitch, int fd)
46       : GRSurface(width, height, row_bytes, pixel_bytes), offset(offset), pitch(pitch), fd(fd) {}
47 
48   const __u32 offset;
49   const __u32 pitch;
50 
51   int fd;
52   int fence_fd{ -1 };
53   uint8_t* mmapped_buffer_{ nullptr };
54 };
55 
56 class MinuiBackendAdf : public MinuiBackend {
57  public:
58   MinuiBackendAdf();
59   ~MinuiBackendAdf() override;
60   GRSurface* Init() override;
61   GRSurface* Flip() override;
62   void Blank(bool) override;
63 
64  private:
65   int InterfaceInit();
66   int DeviceInit(adf_device* dev);
67   void Sync(GRSurfaceAdf* surf);
68 
69   int intf_fd;
70   adf_id_t eng_id;
71   __u32 format;
72   adf_device dev;
73   size_t current_surface;
74   size_t n_surfaces;
75   std::unique_ptr<GRSurfaceAdf> surfaces[2];
76 };
77