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 "drmhwcomposer.h" 21 #include "drmdisplaycomposition.h" 22 #include "drmplane.h" 23 #include "platform.h" 24 25 #include <map> 26 #include <vector> 27 28 #include <hardware/hardware.h> 29 #include <hardware/hwcomposer.h> 30 31 namespace android { 32 33 class DrmDisplayCompositor; 34 35 struct 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 45 class DrmComposition { 46 public: 47 DrmComposition(DrmResources *drm, Importer *importer, Planner *planner); 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 Planner *planner_; 67 68 std::vector<DrmPlane *> primary_planes_; 69 std::vector<DrmPlane *> overlay_planes_; 70 71 /* 72 * This _must_ be read-only after it's passed to QueueComposition. Otherwise 73 * locking is required to maintain consistency across the compositor threads. 74 */ 75 std::map<int, std::unique_ptr<DrmDisplayComposition>> composition_map_; 76 }; 77 } 78 79 #endif // ANDROID_DRM_COMPOSITION_H_ 80