1 /* 2 * Copyright (C) 2008 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_SF_LAYER_STATE_H 18 #define ANDROID_SF_LAYER_STATE_H 19 20 #include <stdint.h> 21 #include <sys/types.h> 22 23 #include <utils/Errors.h> 24 25 #include <ui/Region.h> 26 #include <ui/Rect.h> 27 #include <gui/IGraphicBufferProducer.h> 28 29 namespace android { 30 31 class Parcel; 32 class ISurfaceComposerClient; 33 34 /* 35 * Used to communicate layer information between SurfaceFlinger and its clients. 36 */ 37 struct layer_state_t { 38 39 40 enum { 41 eLayerHidden = 0x01, // SURFACE_HIDDEN in SurfaceControl.java 42 eLayerOpaque = 0x02, // SURFACE_OPAQUE 43 eLayerSecure = 0x80, // SECURE 44 }; 45 46 enum { 47 ePositionChanged = 0x00000001, 48 eLayerChanged = 0x00000002, 49 eSizeChanged = 0x00000004, 50 eAlphaChanged = 0x00000008, 51 eMatrixChanged = 0x00000010, 52 eTransparentRegionChanged = 0x00000020, 53 eFlagsChanged = 0x00000040, 54 eLayerStackChanged = 0x00000080, 55 eCropChanged = 0x00000100, 56 eDeferTransaction = 0x00000200, 57 eFinalCropChanged = 0x00000400, 58 eOverrideScalingModeChanged = 0x00000800, 59 eGeometryAppliesWithResize = 0x00001000, 60 eReparentChildren = 0x00002000, 61 eDetachChildren = 0x00004000, 62 eRelativeLayerChanged = 0x00008000 63 }; 64 layer_state_tlayer_state_t65 layer_state_t() 66 : what(0), 67 x(0), y(0), z(0), w(0), h(0), layerStack(0), 68 alpha(0), flags(0), mask(0), 69 reserved(0), crop(Rect::INVALID_RECT), 70 finalCrop(Rect::INVALID_RECT), frameNumber(0), 71 overrideScalingMode(-1) 72 { 73 matrix.dsdx = matrix.dtdy = 1.0f; 74 matrix.dsdy = matrix.dtdx = 0.0f; 75 } 76 77 status_t write(Parcel& output) const; 78 status_t read(const Parcel& input); 79 80 struct matrix22_t { 81 float dsdx{0}; 82 float dtdx{0}; 83 float dtdy{0}; 84 float dsdy{0}; 85 }; 86 sp<IBinder> surface; 87 uint32_t what; 88 float x; 89 float y; 90 int32_t z; 91 uint32_t w; 92 uint32_t h; 93 uint32_t layerStack; 94 float alpha; 95 uint8_t flags; 96 uint8_t mask; 97 uint8_t reserved; 98 matrix22_t matrix; 99 Rect crop; 100 Rect finalCrop; 101 sp<IBinder> barrierHandle; 102 sp<IBinder> reparentHandle; 103 uint64_t frameNumber; 104 int32_t overrideScalingMode; 105 106 sp<IGraphicBufferProducer> barrierGbp; 107 108 sp<IBinder> relativeLayerHandle; 109 110 // non POD must be last. see write/read 111 Region transparentRegion; 112 }; 113 114 struct ComposerState { 115 sp<ISurfaceComposerClient> client; 116 layer_state_t state; 117 status_t write(Parcel& output) const; 118 status_t read(const Parcel& input); 119 }; 120 121 struct DisplayState { 122 123 enum { 124 eOrientationDefault = 0, 125 eOrientation90 = 1, 126 eOrientation180 = 2, 127 eOrientation270 = 3, 128 eOrientationUnchanged = 4, 129 eOrientationSwapMask = 0x01 130 }; 131 132 enum { 133 eSurfaceChanged = 0x01, 134 eLayerStackChanged = 0x02, 135 eDisplayProjectionChanged = 0x04, 136 eDisplaySizeChanged = 0x08 137 }; 138 139 DisplayState(); 140 141 uint32_t what; 142 sp<IBinder> token; 143 sp<IGraphicBufferProducer> surface; 144 uint32_t layerStack; 145 uint32_t orientation; 146 Rect viewport; 147 Rect frame; 148 uint32_t width, height; 149 status_t write(Parcel& output) const; 150 status_t read(const Parcel& input); 151 }; 152 153 }; // namespace android 154 155 #endif // ANDROID_SF_LAYER_STATE_H 156 157