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_DISPLAY_COMPOSITION_H_ 18 #define ANDROID_DRM_DISPLAY_COMPOSITION_H_ 19 20 #include "drm_hwcomposer.h" 21 #include "drmplane.h" 22 #include "importer.h" 23 24 #include <vector> 25 26 #include <hardware/hardware.h> 27 #include <hardware/hwcomposer.h> 28 29 namespace android { 30 31 enum DrmCompositionType { 32 DRM_COMPOSITION_TYPE_EMPTY, 33 DRM_COMPOSITION_TYPE_FRAME, 34 DRM_COMPOSITION_TYPE_DPMS, 35 }; 36 37 typedef struct DrmCompositionLayer { 38 DrmCompositionLayer(); 39 ~DrmCompositionLayer(); 40 41 hwc_layer_1_t layer; 42 hwc_drm_bo_t bo; 43 DrmCrtc *crtc; 44 DrmPlane *plane; 45 } DrmCompositionLayer_t; 46 typedef std::vector<DrmCompositionLayer_t> DrmCompositionLayerVector_t; 47 48 class DrmDisplayComposition { 49 public: 50 DrmDisplayComposition(); 51 ~DrmDisplayComposition(); 52 53 int Init(DrmResources *drm, Importer *importer); 54 55 DrmCompositionType type() const; 56 57 int AddLayer(hwc_layer_1_t *layer, hwc_drm_bo_t *bo, DrmCrtc *crtc, 58 DrmPlane *plane); 59 int AddDpmsMode(uint32_t dpms_mode); 60 61 int FinishComposition(); 62 63 DrmCompositionLayerVector_t *GetCompositionLayers(); 64 uint32_t dpms_mode() const; 65 66 private: 67 DrmDisplayComposition(const DrmDisplayComposition &) = delete; 68 69 bool validate_composition_type(DrmCompositionType desired); 70 71 DrmResources *drm_; 72 Importer *importer_; 73 74 DrmCompositionType type_; 75 76 int timeline_fd_; 77 int timeline_; 78 79 DrmCompositionLayerVector_t layers_; 80 uint32_t dpms_mode_; 81 }; 82 } 83 84 #endif // ANDROID_DRM_DISPLAY_COMPOSITION_H_ 85