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/ISurface.h> 28 29 namespace android { 30 31 class Parcel; 32 class ISurfaceComposerClient; 33 34 struct layer_state_t { 35 36 37 enum { 38 eLayerHidden = 0x01, 39 }; 40 41 enum { 42 ePositionChanged = 0x00000001, 43 eLayerChanged = 0x00000002, 44 eSizeChanged = 0x00000004, 45 eAlphaChanged = 0x00000008, 46 eMatrixChanged = 0x00000010, 47 eTransparentRegionChanged = 0x00000020, 48 eVisibilityChanged = 0x00000040, 49 eLayerStackChanged = 0x00000080, 50 eCropChanged = 0x00000100, 51 }; 52 layer_state_tlayer_state_t53 layer_state_t() 54 : surface(0), what(0), 55 x(0), y(0), z(0), w(0), h(0), layerStack(0), 56 alpha(0), flags(0), mask(0), 57 reserved(0) 58 { 59 matrix.dsdx = matrix.dtdy = 1.0f; 60 matrix.dsdy = matrix.dtdx = 0.0f; 61 crop.makeInvalid(); 62 } 63 64 status_t write(Parcel& output) const; 65 status_t read(const Parcel& input); 66 67 struct matrix22_t { 68 float dsdx; 69 float dtdx; 70 float dsdy; 71 float dtdy; 72 }; 73 SurfaceID surface; 74 uint32_t what; 75 float x; 76 float y; 77 uint32_t z; 78 uint32_t w; 79 uint32_t h; 80 uint32_t layerStack; 81 float alpha; 82 uint8_t flags; 83 uint8_t mask; 84 uint8_t reserved; 85 matrix22_t matrix; 86 Rect crop; 87 // non POD must be last. see write/read 88 Region transparentRegion; 89 }; 90 91 struct ComposerState { 92 sp<ISurfaceComposerClient> client; 93 layer_state_t state; 94 status_t write(Parcel& output) const; 95 status_t read(const Parcel& input); 96 }; 97 98 struct DisplayState { 99 100 enum { 101 eOrientationDefault = 0, 102 eOrientation90 = 1, 103 eOrientation180 = 2, 104 eOrientation270 = 3, 105 eOrientationUnchanged = 4, 106 eOrientationSwapMask = 0x01 107 }; 108 109 enum { 110 eSurfaceChanged = 0x01, 111 eLayerStackChanged = 0x02, 112 eDisplayProjectionChanged = 0x04 113 }; 114 115 uint32_t what; 116 sp<IBinder> token; 117 sp<ISurfaceTexture> surface; 118 uint32_t layerStack; 119 uint32_t orientation; 120 Rect viewport; 121 Rect frame; 122 status_t write(Parcel& output) const; 123 status_t read(const Parcel& input); 124 }; 125 126 }; // namespace android 127 128 #endif // ANDROID_SF_LAYER_STATE_H 129 130