1 /* 2 * Copyright (C) 2017 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 package android.frameworks.vr.composer@1.0; 17 18 import android.hardware.graphics.common@1.0::BufferUsage; 19 import android.hardware.graphics.common@1.0::PixelFormat; 20 import android.hardware.graphics.composer@2.1::IComposerClient; 21 22 interface IVrComposerClient 23 extends android.hardware.graphics.composer@2.1::IComposerClient { 24 /* 25 * Describes the metadata that describes the buffer. 26 */ 27 struct BufferMetadata { 28 /* 29 * Specifies how many columns of pixels are allocated in the buffer. The 30 * rows may be padded. 31 */ 32 uint32_t width; 33 34 /* 35 * Specifies how many rows of pixels are allocated in the buffer. 36 */ 37 uint32_t height; 38 39 /* 40 * Specifies the size of a row of pixels in the buffer. (width + 41 * padding). 42 */ 43 uint32_t stride; 44 45 /* 46 * The number of image layers allocated in the buffer. 47 */ 48 uint32_t layerCount; 49 50 /* 51 * Buffer pixel format. 52 */ 53 PixelFormat format; 54 55 /* 56 * Buffer usage mask. 57 */ 58 bitfield<BufferUsage> usage; 59 }; 60 61 /* 62 * SET_LAYER_INFO has this pseudo prototype 63 * 64 * Used to annotate the layer with additional information, which must be 65 * used to describe the content of the layer (ie: notification, permission, 66 * etc) which allows VR window manager to treat certain layer types 67 * specially. 68 * 69 * @param display is the display on which the layer was created. 70 * @param layer is the layer affected by the change. 71 * @param layer_type the type of the layer as described by the window 72 * manager. 73 * @param application_id the application id the layer belongs to. 74 * @return error is NONE upon success. Otherwise, 75 * BAD_DISPLAY when an invalid display handle was passed in. 76 * BAD_LAYER when an invalid layer handle was passed in. 77 * 78 * setLayerInfo(Display display, 79 * Layer layer, 80 * uint32_t layer_type, 81 * uint32_t application_id) 82 * generates(Error error); 83 * 84 * SET_CLIENT_TARGET_METADATA has this pseudo prototype 85 * 86 * Used to set the native buffer handle metadata required to import and use 87 * the buffer as a graphic buffer. 88 * 89 * @param display is the display on which the buffer is used. 90 * @param metadata is the buffer metadata required to import the buffer. 91 * @return error is NONE upon success. Otherwise, 92 * BAD_DISPLAY when an invalid display handle was passed in. 93 * setClientTargetMetadata(Display display, 94 * BufferMetadata metadata) 95 * generates(Error error); 96 * 97 * SET_LAYER_BUFFER_METADATA has this pseudo prototype 98 * 99 * Used to set the native buffer handle metadata required to import and use 100 * the buffer as a graphic buffer. 101 * 102 * @param display is the display on which the buffer is used. 103 * @param layer is the layer the buffer metadata is associated with. 104 * @param metadata is the buffer metadata required to import the buffer. 105 * @return error is NONE upon success. Otherwise, 106 * BAD_DISPLAY when an invalid display handle was passed in. 107 * BAD_LAYER when an invalid layer handle was passed in. 108 * 109 * setLayerBufferMetadata(Display display, 110 * Layer layer, 111 * BufferMetadata metadata) 112 * generates(Error error); 113 */ 114 115 enum VrCommand : android.hardware.graphics.composer@2.1::IComposerClient.Command { 116 SET_LAYER_INFO = 0x800 << OPCODE_SHIFT, 117 SET_CLIENT_TARGET_METADATA = 0x801 << OPCODE_SHIFT, 118 SET_LAYER_BUFFER_METADATA = 0x802 << OPCODE_SHIFT, 119 }; 120 }; 121
