1 /* 2 * Copyright (c) 2014-2017, 2019, The Linux Foundation. All rights reserved. 3 * Not a Contribution. 4 * 5 * Copyright 2015 The Android Open Source Project 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 */ 19 20 #ifndef __HWC_LAYERS_H__ 21 #define __HWC_LAYERS_H__ 22 23 /* This class translates HWC2 Layer functions to the SDM LayerStack 24 */ 25 26 #include <gralloc_priv.h> 27 #include <qdMetaData.h> 28 #include <core/layer_stack.h> 29 #define HWC2_INCLUDE_STRINGIFICATION 30 #define HWC2_USE_CPP11 31 #include <hardware/hwcomposer2.h> 32 #undef HWC2_INCLUDE_STRINGIFICATION 33 #undef HWC2_USE_CPP11 34 #include <map> 35 #include <queue> 36 #include <set> 37 #include "core/buffer_allocator.h" 38 #include "hwc_buffer_allocator.h" 39 40 namespace sdm { 41 42 enum GeometryChanges { 43 kNone = 0x000, 44 kBlendMode = 0x001, 45 kDataspace = 0x002, 46 kDisplayFrame = 0x004, 47 kPlaneAlpha = 0x008, 48 kSourceCrop = 0x010, 49 kTransform = 0x020, 50 kZOrder = 0x040, 51 kAdded = 0x080, 52 kRemoved = 0x100, 53 kBufferGeometry = 0x200, 54 }; 55 56 class HWCLayer { 57 public: 58 explicit HWCLayer(hwc2_display_t display_id, HWCBufferAllocator *buf_allocator); 59 ~HWCLayer(); GetZ()60 uint32_t GetZ() const { return z_; } GetId()61 hwc2_layer_t GetId() const { return id_; } GetSDMLayer()62 Layer *GetSDMLayer() { return layer_; } 63 64 HWC2::Error SetLayerBlendMode(HWC2::BlendMode mode); 65 HWC2::Error SetLayerBuffer(buffer_handle_t buffer, int32_t acquire_fence); 66 HWC2::Error SetLayerColor(hwc_color_t color); 67 HWC2::Error SetLayerCompositionType(HWC2::Composition type); 68 HWC2::Error SetLayerDataspace(int32_t dataspace); 69 HWC2::Error SetLayerDisplayFrame(hwc_rect_t frame); 70 HWC2::Error SetLayerPlaneAlpha(float alpha); 71 HWC2::Error SetLayerSourceCrop(hwc_frect_t crop); 72 HWC2::Error SetLayerSurfaceDamage(hwc_region_t damage); 73 HWC2::Error SetLayerTransform(HWC2::Transform transform); 74 HWC2::Error SetLayerVisibleRegion(hwc_region_t visible); 75 HWC2::Error SetLayerZOrder(uint32_t z); 76 void SetComposition(const LayerComposition &sdm_composition); GetClientRequestedCompositionType()77 HWC2::Composition GetClientRequestedCompositionType() { return client_requested_; } UpdateClientCompositionType(HWC2::Composition type)78 void UpdateClientCompositionType(HWC2::Composition type) { client_requested_ = type; } GetDeviceSelectedCompositionType()79 HWC2::Composition GetDeviceSelectedCompositionType() { return device_selected_; } GetGeometryChanges()80 uint32_t GetGeometryChanges() { return geometry_changes_; } ResetGeometryChanges()81 void ResetGeometryChanges() { geometry_changes_ = GeometryChanges::kNone; } 82 void PushReleaseFence(int32_t fence); 83 int32_t PopReleaseFence(void); ResetValidation()84 void ResetValidation() { needs_validate_ = false; } NeedsValidation()85 bool NeedsValidation() { return (needs_validate_ || geometry_changes_); } IsSurfaceUpdated()86 bool IsSurfaceUpdated() { return surface_updated_; } SetPartialUpdate(bool enabled)87 void SetPartialUpdate(bool enabled) { partial_update_enabled_ = enabled; } 88 89 private: 90 Layer *layer_ = nullptr; 91 uint32_t z_ = 0; 92 int32_t dataspace_ = 0; 93 const hwc2_layer_t id_; 94 const hwc2_display_t display_id_; 95 static std::atomic<hwc2_layer_t> next_id_; 96 std::queue<int32_t> release_fences_; 97 int ion_fd_ = -1; 98 HWCBufferAllocator *buffer_allocator_ = NULL; 99 bool needs_validate_ = true; 100 bool partial_update_enabled_ = false; 101 bool surface_updated_ = true; 102 103 // Composition requested by client(SF) 104 HWC2::Composition client_requested_ = HWC2::Composition::Device; 105 // Composition selected by SDM 106 HWC2::Composition device_selected_ = HWC2::Composition::Device; 107 uint32_t geometry_changes_ = GeometryChanges::kNone; 108 109 void SetRect(const hwc_rect_t &source, LayerRect *target); 110 void SetRect(const hwc_frect_t &source, LayerRect *target); 111 uint32_t GetUint32Color(const hwc_color_t &source); 112 LayerBufferFormat GetSDMFormat(const int32_t &source, const int flags); 113 LayerBufferS3DFormat GetS3DFormat(uint32_t s3d_format); 114 DisplayError SetMetaData(const private_handle_t *pvt_handle, Layer *layer); 115 DisplayError SetCSC(ColorSpace_t source, LayerCSC *target); 116 DisplayError SetIGC(IGC_t source, LayerIGC *target); 117 uint32_t RoundToStandardFPS(float fps); 118 void SetDirtyRegions(hwc_region_t surface_damage); 119 }; 120 121 struct SortLayersByZ { operatorSortLayersByZ122 bool operator()(const HWCLayer *lhs, const HWCLayer *rhs) const { 123 return lhs->GetZ() < rhs->GetZ(); 124 } 125 }; 126 127 } // namespace sdm 128 #endif // __HWC_LAYERS_H__ 129