drmcomposition.h revision 5757e82631820372382d3369c54cc3a1ffef812f 
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_DRM_COMPOSITION_H_
18#define ANDROID_DRM_COMPOSITION_H_
19
20#include "drm_hwcomposer.h"
21#include "drmdisplaycomposition.h"
22#include "drmplane.h"
23#include "importer.h"
24
25#include <map>
26#include <vector>
27
28#include <hardware/hardware.h>
29#include <hardware/hwcomposer.h>
30
31namespace android {
32
33class DrmDisplayCompositor;
34
35struct DrmCompositionDisplayLayersMap {
36  int display;
37  bool geometry_changed = true;
38  std::vector<DrmHwcLayer> layers;
39
40  DrmCompositionDisplayLayersMap() = default;
41  DrmCompositionDisplayLayersMap(DrmCompositionDisplayLayersMap &&rhs) =
42      default;
43};
44
45class DrmComposition {
46 public:
47  DrmComposition(DrmResources *drm, Importer *importer);
48
49  int Init(uint64_t frame_no);
50
51  int SetLayers(size_t num_displays, DrmCompositionDisplayLayersMap *maps);
52  int SetDpmsMode(int display, uint32_t dpms_mode);
53  int SetDisplayMode(int display, const DrmMode &display_mode);
54
55  std::unique_ptr<DrmDisplayComposition> TakeDisplayComposition(int display);
56  DrmDisplayComposition *GetDisplayComposition(int display);
57
58  int Plan(std::map<int, DrmDisplayCompositor> &compositor_map);
59  int DisableUnusedPlanes();
60
61 private:
62  DrmComposition(const DrmComposition &) = delete;
63
64  DrmResources *drm_;
65  Importer *importer_;
66
67  std::vector<DrmPlane *> primary_planes_;
68  std::vector<DrmPlane *> overlay_planes_;
69
70  /*
71   * This _must_ be read-only after it's passed to QueueComposition. Otherwise
72   * locking is required to maintain consistency across the compositor threads.
73   */
74  std::map<int, std::unique_ptr<DrmDisplayComposition>> composition_map_;
75};
76}
77
78#endif  // ANDROID_DRM_COMPOSITION_H_
79