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Diffstat (limited to 'libs/surfaceflinger_client/IGraphicBufferAlloc.cpp')
-rw-r--r-- | libs/surfaceflinger_client/IGraphicBufferAlloc.cpp | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/libs/surfaceflinger_client/IGraphicBufferAlloc.cpp b/libs/surfaceflinger_client/IGraphicBufferAlloc.cpp new file mode 100644 index 0000000..e05da72 --- /dev/null +++ b/libs/surfaceflinger_client/IGraphicBufferAlloc.cpp @@ -0,0 +1,108 @@ +/* + * Copyright (C) 2011 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +// tag as surfaceflinger +#define LOG_TAG "SurfaceFlinger" + +#include <stdint.h> +#include <sys/types.h> + +#include <binder/Parcel.h> + +#include <ui/GraphicBuffer.h> + +#include <surfaceflinger/IGraphicBufferAlloc.h> + +// --------------------------------------------------------------------------- + +namespace android { + +enum { + CREATE_GRAPHIC_BUFFER = IBinder::FIRST_CALL_TRANSACTION, + FREE_ALL_GRAPHIC_BUFFERS_EXCEPT, +}; + +class BpGraphicBufferAlloc : public BpInterface<IGraphicBufferAlloc> +{ +public: + BpGraphicBufferAlloc(const sp<IBinder>& impl) + : BpInterface<IGraphicBufferAlloc>(impl) + { + } + + virtual sp<GraphicBuffer> createGraphicBuffer(uint32_t w, uint32_t h, + PixelFormat format, uint32_t usage) { + Parcel data, reply; + data.writeInterfaceToken( + IGraphicBufferAlloc::getInterfaceDescriptor()); + data.writeInt32(w); + data.writeInt32(h); + data.writeInt32(format); + data.writeInt32(usage); + remote()->transact(CREATE_GRAPHIC_BUFFER, data, &reply); + sp<GraphicBuffer> graphicBuffer; + bool nonNull = (bool)reply.readInt32(); + if (nonNull) { + graphicBuffer = new GraphicBuffer(); + reply.read(*graphicBuffer); + } + return graphicBuffer; + } + + virtual void freeAllGraphicBuffersExcept(int bufIdx) { + Parcel data, reply; + data.writeInterfaceToken( + IGraphicBufferAlloc::getInterfaceDescriptor()); + data.writeInt32(bufIdx); + remote()->transact(FREE_ALL_GRAPHIC_BUFFERS_EXCEPT, data, &reply); + } +}; + +IMPLEMENT_META_INTERFACE(GraphicBufferAlloc, "android.ui.IGraphicBufferAlloc"); + +// ---------------------------------------------------------------------- + +status_t BnGraphicBufferAlloc::onTransact( + uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) +{ + // codes that don't require permission check + + switch(code) { + case CREATE_GRAPHIC_BUFFER: { + CHECK_INTERFACE(IGraphicBufferAlloc, data, reply); + uint32_t w = data.readInt32(); + uint32_t h = data.readInt32(); + PixelFormat format = data.readInt32(); + uint32_t usage = data.readInt32(); + sp<GraphicBuffer> result(createGraphicBuffer(w, h, format, usage)); + reply->writeInt32(result != 0); + if (result != 0) { + reply->write(*result); + } + return NO_ERROR; + } break; + case FREE_ALL_GRAPHIC_BUFFERS_EXCEPT: { + CHECK_INTERFACE(IGraphicBufferAlloc, data, reply); + int bufIdx = data.readInt32(); + freeAllGraphicBuffersExcept(bufIdx); + return NO_ERROR; + } break; + default: + return BBinder::onTransact(code, data, reply, flags); + } +} + +}; // namespace android |