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 28 namespace android { 29 30 class Parcel; 31 class ISurfaceComposerClient; 32 33 /* 34 * Used to communicate layer information between SurfaceFlinger and its clients. 35 */ 36 struct layer_state_t { 37 38 39 enum { 40 eLayerHidden = 0x01, // SURFACE_HIDDEN in SurfaceControl.java 41 eLayerOpaque = 0x02, // SURFACE_OPAQUE 42 eLayerSecure = 0x80, // SECURE 43 }; 44 45 enum { 46 ePositionChanged = 0x00000001, 47 eLayerChanged = 0x00000002, 48 eSizeChanged = 0x00000004, 49 eAlphaChanged = 0x00000008, 50 eMatrixChanged = 0x00000010, 51 eTransparentRegionChanged = 0x00000020, 52 eFlagsChanged = 0x00000040, 53 eLayerStackChanged = 0x00000080, 54 eCropChanged = 0x00000100, 55 eDeferTransaction = 0x00000200, 56 eFinalCropChanged = 0x00000400, 57 eOverrideScalingModeChanged = 0x00000800, 58 ePositionAppliesWithResize = 0x00001000, 59 }; 60 61 layer_state_t() 62 : what(0), 63 x(0), y(0), z(0), w(0), h(0), layerStack(0), 64 alpha(0), flags(0), mask(0), 65 reserved(0), crop(Rect::INVALID_RECT), 66 finalCrop(Rect::INVALID_RECT), frameNumber(0), 67 overrideScalingMode(-1) 68 { 69 matrix.dsdx = matrix.dtdy = 1.0f; 70 matrix.dsdy = matrix.dtdx = 0.0f; 71 } 72 73 status_t write(Parcel& output) const; 74 status_t read(const Parcel& input); 75 76 struct matrix22_t { 77 float dsdx; 78 float dtdx; 79 float dsdy; 80 float dtdy; 81 }; 82 sp<IBinder> surface; 83 uint32_t what; 84 float x; 85 float y; 86 uint32_t z; 87 uint32_t w; 88 uint32_t h; 89 uint32_t layerStack; 90 float alpha; 91 uint8_t flags; 92 uint8_t mask; 93 uint8_t reserved; 94 matrix22_t matrix; 95 Rect crop; 96 Rect finalCrop; 97 sp<IBinder> handle; 98 uint64_t frameNumber; 99 int32_t overrideScalingMode; 100 // non POD must be last. see write/read 101 Region transparentRegion; 102 }; 103 104 struct ComposerState { 105 sp<ISurfaceComposerClient> client; 106 layer_state_t state; 107 status_t write(Parcel& output) const; 108 status_t read(const Parcel& input); 109 }; 110 111 struct DisplayState { 112 113 enum { 114 eOrientationDefault = 0, 115 eOrientation90 = 1, 116 eOrientation180 = 2, 117 eOrientation270 = 3, 118 eOrientationUnchanged = 4, 119 eOrientationSwapMask = 0x01 120 }; 121 122 enum { 123 eSurfaceChanged = 0x01, 124 eLayerStackChanged = 0x02, 125 eDisplayProjectionChanged = 0x04, 126 eDisplaySizeChanged = 0x08 127 }; 128 129 DisplayState(); 130 131 uint32_t what; 132 sp<IBinder> token; 133 sp<IGraphicBufferProducer> surface; 134 uint32_t layerStack; 135 uint32_t orientation; 136 Rect viewport; 137 Rect frame; 138 uint32_t width, height; 139 status_t write(Parcel& output) const; 140 status_t read(const Parcel& input); 141 }; 142 143 }; // namespace android 144 145 #endif // ANDROID_SF_LAYER_STATE_H 146 147
