1 /* 2 * Copyright 2019 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 <cstdint> 20 #include <optional> 21 #include <string> 22 23 #include <compositionengine/impl/HwcBufferCache.h> 24 #include <renderengine/Mesh.h> 25 #include <ui/FloatRect.h> 26 #include <ui/Rect.h> 27 #include <ui/Region.h> 28 29 #include "DisplayHardware/ComposerHal.h" 30 31 namespace HWC2 { 32 class Layer; 33 } // namespace HWC2 34 35 namespace android { 36 37 class HWComposer; 38 39 namespace compositionengine::impl { 40 41 struct OutputLayerCompositionState { 42 // The region of this layer which is visible on this output 43 Region visibleRegion; 44 45 // If true, client composition will be used on this output 46 bool forceClientComposition{false}; 47 48 // If true, when doing client composition, the target may need to be cleared 49 bool clearClientTarget{false}; 50 51 // The display frame for this layer on this output 52 Rect displayFrame; 53 54 // The source crop for this layer on this output 55 FloatRect sourceCrop; 56 57 // The buffer transform to use for this layer o on this output. 58 Hwc2::Transform bufferTransform{static_cast<Hwc2::Transform>(0)}; 59 60 // The Z order index of this layer on this output 61 uint32_t z; 62 63 /* 64 * HWC state 65 */ 66 67 struct Hwc { 68 explicit Hwc(std::shared_ptr<HWC2::Layer> hwcLayer) : hwcLayer(hwcLayer) {} 69 70 // The HWC Layer backing this layer 71 std::shared_ptr<HWC2::Layer> hwcLayer; 72 73 // The HWC composition type for this layer 74 Hwc2::IComposerClient::Composition hwcCompositionType{ 75 Hwc2::IComposerClient::Composition::INVALID}; 76 77 // The buffer cache for this layer. This is used to lower the 78 // cost of sending reused buffers to the HWC. 79 HwcBufferCache hwcBufferCache; 80 }; 81 82 // The HWC state is optional, and is only set up if there is any potential 83 // HWC acceleration possible. 84 std::optional<Hwc> hwc; 85 86 // Debugging 87 void dump(std::string& result) const; 88 }; 89 90 } // namespace compositionengine::impl 91 } // namespace android 92
