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 27 #include <surfaceflinger/ISurface.h> 28 29 namespace android { 30 31 class Parcel; 32 class ISurfaceComposerClient; 33 34 struct layer_state_t { 35 layer_state_tlayer_state_t36 layer_state_t() 37 : surface(0), what(0), 38 x(0), y(0), z(0), w(0), h(0), 39 alpha(0), tint(0), flags(0), mask(0), 40 reserved(0) 41 { 42 matrix.dsdx = matrix.dtdy = 1.0f; 43 matrix.dsdy = matrix.dtdx = 0.0f; 44 } 45 46 status_t write(Parcel& output) const; 47 status_t read(const Parcel& input); 48 49 struct matrix22_t { 50 float dsdx; 51 float dtdx; 52 float dsdy; 53 float dtdy; 54 }; 55 SurfaceID surface; 56 uint32_t what; 57 float x; 58 float y; 59 uint32_t z; 60 uint32_t w; 61 uint32_t h; 62 float alpha; 63 uint32_t tint; 64 uint8_t flags; 65 uint8_t mask; 66 uint8_t reserved; 67 matrix22_t matrix; 68 // non POD must be last. see write/read 69 Region transparentRegion; 70 }; 71 72 struct ComposerState { 73 sp<ISurfaceComposerClient> client; 74 layer_state_t state; 75 status_t write(Parcel& output) const; 76 status_t read(const Parcel& input); 77 }; 78 79 }; // namespace android 80 81 #endif // ANDROID_SF_LAYER_STATE_H 82 83