1 /* 2 * Copyright (C) 2007 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 #define LOG_TAG "ISurface" 18 19 #include <stdio.h> 20 #include <stdint.h> 21 #include <sys/types.h> 22 23 #include <binder/Parcel.h> 24 #include <binder/IMemory.h> 25 26 #include <ui/Overlay.h> 27 #include <ui/GraphicBuffer.h> 28 29 #include <surfaceflinger/Surface.h> 30 #include <surfaceflinger/ISurface.h> 31 32 namespace android { 33 34 // ---------------------------------------------------------------------- 35 36 ISurface::BufferHeap::BufferHeap() 37 : w(0), h(0), hor_stride(0), ver_stride(0), format(0), 38 transform(0), flags(0) 39 { 40 } 41 42 ISurface::BufferHeap::BufferHeap(uint32_t w, uint32_t h, 43 int32_t hor_stride, int32_t ver_stride, 44 PixelFormat format, const sp<IMemoryHeap>& heap) 45 : w(w), h(h), hor_stride(hor_stride), ver_stride(ver_stride), 46 format(format), transform(0), flags(0), heap(heap) 47 { 48 } 49 50 ISurface::BufferHeap::BufferHeap(uint32_t w, uint32_t h, 51 int32_t hor_stride, int32_t ver_stride, 52 PixelFormat format, uint32_t transform, uint32_t flags, 53 const sp<IMemoryHeap>& heap) 54 : w(w), h(h), hor_stride(hor_stride), ver_stride(ver_stride), 55 format(format), transform(transform), flags(flags), heap(heap) 56 { 57 } 58 59 60 ISurface::BufferHeap::~BufferHeap() 61 { 62 } 63 64 // ---------------------------------------------------------------------- 65 66 class BpSurface : public BpInterface<ISurface> 67 { 68 public: 69 BpSurface(const sp<IBinder>& impl) 70 : BpInterface<ISurface>(impl) 71 { 72 } 73 74 virtual sp<GraphicBuffer> requestBuffer(int bufferIdx, 75 uint32_t w, uint32_t h, uint32_t format, uint32_t usage) 76 { 77 Parcel data, reply; 78 data.writeInterfaceToken(ISurface::getInterfaceDescriptor()); 79 data.writeInt32(bufferIdx); 80 data.writeInt32(w); 81 data.writeInt32(h); 82 data.writeInt32(format); 83 data.writeInt32(usage); 84 remote()->transact(REQUEST_BUFFER, data, &reply); 85 sp<GraphicBuffer> buffer = new GraphicBuffer(); 86 reply.read(*buffer); 87 return buffer; 88 } 89 90 virtual status_t setBufferCount(int bufferCount) 91 { 92 Parcel data, reply; 93 data.writeInterfaceToken(ISurface::getInterfaceDescriptor()); 94 data.writeInt32(bufferCount); 95 remote()->transact(SET_BUFFER_COUNT, data, &reply); 96 status_t err = reply.readInt32(); 97 return err; 98 } 99 100 virtual status_t registerBuffers(const BufferHeap& buffers) 101 { 102 Parcel data, reply; 103 data.writeInterfaceToken(ISurface::getInterfaceDescriptor()); 104 data.writeInt32(buffers.w); 105 data.writeInt32(buffers.h); 106 data.writeInt32(buffers.hor_stride); 107 data.writeInt32(buffers.ver_stride); 108 data.writeInt32(buffers.format); 109 data.writeInt32(buffers.transform); 110 data.writeInt32(buffers.flags); 111 data.writeStrongBinder(buffers.heap->asBinder()); 112 remote()->transact(REGISTER_BUFFERS, data, &reply); 113 status_t result = reply.readInt32(); 114 return result; 115 } 116 117 virtual void postBuffer(ssize_t offset) 118 { 119 Parcel data, reply; 120 data.writeInterfaceToken(ISurface::getInterfaceDescriptor()); 121 data.writeInt32(offset); 122 remote()->transact(POST_BUFFER, data, &reply, IBinder::FLAG_ONEWAY); 123 } 124 125 virtual void unregisterBuffers() 126 { 127 Parcel data, reply; 128 data.writeInterfaceToken(ISurface::getInterfaceDescriptor()); 129 remote()->transact(UNREGISTER_BUFFERS, data, &reply); 130 } 131 132 virtual sp<OverlayRef> createOverlay( 133 uint32_t w, uint32_t h, int32_t format, int32_t orientation) 134 { 135 Parcel data, reply; 136 data.writeInterfaceToken(ISurface::getInterfaceDescriptor()); 137 data.writeInt32(w); 138 data.writeInt32(h); 139 data.writeInt32(format); 140 data.writeInt32(orientation); 141 remote()->transact(CREATE_OVERLAY, data, &reply); 142 return OverlayRef::readFromParcel(reply); 143 } 144 }; 145 146 IMPLEMENT_META_INTERFACE(Surface, "android.ui.ISurface"); 147 148 // ---------------------------------------------------------------------- 149 150 status_t BnSurface::onTransact( 151 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 152 { 153 switch(code) { 154 case REQUEST_BUFFER: { 155 CHECK_INTERFACE(ISurface, data, reply); 156 int bufferIdx = data.readInt32(); 157 uint32_t w = data.readInt32(); 158 uint32_t h = data.readInt32(); 159 uint32_t format = data.readInt32(); 160 uint32_t usage = data.readInt32(); 161 sp<GraphicBuffer> buffer(requestBuffer(bufferIdx, w, h, format, usage)); 162 if (buffer == NULL) 163 return BAD_VALUE; 164 return reply->write(*buffer); 165 } 166 case SET_BUFFER_COUNT: { 167 CHECK_INTERFACE(ISurface, data, reply); 168 int bufferCount = data.readInt32(); 169 status_t err = setBufferCount(bufferCount); 170 reply->writeInt32(err); 171 return NO_ERROR; 172 } 173 case REGISTER_BUFFERS: { 174 CHECK_INTERFACE(ISurface, data, reply); 175 BufferHeap buffer; 176 buffer.w = data.readInt32(); 177 buffer.h = data.readInt32(); 178 buffer.hor_stride = data.readInt32(); 179 buffer.ver_stride= data.readInt32(); 180 buffer.format = data.readInt32(); 181 buffer.transform = data.readInt32(); 182 buffer.flags = data.readInt32(); 183 buffer.heap = interface_cast<IMemoryHeap>(data.readStrongBinder()); 184 status_t err = registerBuffers(buffer); 185 reply->writeInt32(err); 186 return NO_ERROR; 187 } break; 188 case UNREGISTER_BUFFERS: { 189 CHECK_INTERFACE(ISurface, data, reply); 190 unregisterBuffers(); 191 return NO_ERROR; 192 } break; 193 case POST_BUFFER: { 194 CHECK_INTERFACE(ISurface, data, reply); 195 ssize_t offset = data.readInt32(); 196 postBuffer(offset); 197 return NO_ERROR; 198 } break; 199 case CREATE_OVERLAY: { 200 CHECK_INTERFACE(ISurface, data, reply); 201 int w = data.readInt32(); 202 int h = data.readInt32(); 203 int f = data.readInt32(); 204 int orientation = data.readInt32(); 205 sp<OverlayRef> o = createOverlay(w, h, f, orientation); 206 return OverlayRef::writeToParcel(reply, o); 207 } break; 208 default: 209 return BBinder::onTransact(code, data, reply, flags); 210 } 211 } 212 213 }; // namespace android 214
