diff options
Diffstat (limited to 'media/libmedia/IEffect.cpp')
| -rw-r--r-- | media/libmedia/IEffect.cpp | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/media/libmedia/IEffect.cpp b/media/libmedia/IEffect.cpp new file mode 100644 index 000000000000..a945b978cf85 --- /dev/null +++ b/media/libmedia/IEffect.cpp @@ -0,0 +1,195 @@ +/* +** +** Copyright 2010, 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. +*/ + +//#define LOG_NDEBUG 0 +#define LOG_TAG "IEffect" +#include <utils/Log.h> +#include <stdint.h> +#include <sys/types.h> +#include <binder/Parcel.h> +#include <media/IEffect.h> + +namespace android { + +enum { + ENABLE = IBinder::FIRST_CALL_TRANSACTION, + DISABLE, + COMMAND, + DISCONNECT, + GET_CBLK +}; + +class BpEffect: public BpInterface<IEffect> +{ +public: + BpEffect(const sp<IBinder>& impl) + : BpInterface<IEffect>(impl) + { + } + + status_t enable() + { + LOGV("enable"); + Parcel data, reply; + data.writeInterfaceToken(IEffect::getInterfaceDescriptor()); + remote()->transact(ENABLE, data, &reply); + return reply.readInt32(); + } + + status_t disable() + { + LOGV("disable"); + Parcel data, reply; + data.writeInterfaceToken(IEffect::getInterfaceDescriptor()); + remote()->transact(DISABLE, data, &reply); + return reply.readInt32(); + } + + status_t command(uint32_t cmdCode, + uint32_t cmdSize, + void *pCmdData, + uint32_t *pReplySize, + void *pReplyData) + { + LOGV("command"); + Parcel data, reply; + data.writeInterfaceToken(IEffect::getInterfaceDescriptor()); + data.writeInt32(cmdCode); + int size = cmdSize; + if (pCmdData == NULL) { + size = 0; + } + data.writeInt32(size); + if (size) { + data.write(pCmdData, size); + } + if (pReplySize == NULL) { + size = 0; + } else { + size = *pReplySize; + } + data.writeInt32(size); + remote()->transact(COMMAND, data, &reply); + status_t status = reply.readInt32(); + size = reply.readInt32(); + if (size != 0 && pReplyData != NULL && pReplySize != NULL) { + reply.read(pReplyData, size); + *pReplySize = size; + } + return status; + } + + void disconnect() + { + LOGV("disconnect"); + Parcel data, reply; + data.writeInterfaceToken(IEffect::getInterfaceDescriptor()); + remote()->transact(DISCONNECT, data, &reply); + return; + } + + virtual sp<IMemory> getCblk() const + { + Parcel data, reply; + sp<IMemory> cblk; + data.writeInterfaceToken(IEffect::getInterfaceDescriptor()); + status_t status = remote()->transact(GET_CBLK, data, &reply); + if (status == NO_ERROR) { + cblk = interface_cast<IMemory>(reply.readStrongBinder()); + } + return cblk; + } + }; + +IMPLEMENT_META_INTERFACE(Effect, "android.media.IEffect"); + +// ---------------------------------------------------------------------- + +status_t BnEffect::onTransact( + uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) +{ + switch(code) { + case ENABLE: { + LOGV("ENABLE"); + CHECK_INTERFACE(IEffect, data, reply); + reply->writeInt32(enable()); + return NO_ERROR; + } break; + + case DISABLE: { + LOGV("DISABLE"); + CHECK_INTERFACE(IEffect, data, reply); + reply->writeInt32(disable()); + return NO_ERROR; + } break; + + case COMMAND: { + LOGV("COMMAND"); + CHECK_INTERFACE(IEffect, data, reply); + uint32_t cmdCode = data.readInt32(); + uint32_t cmdSize = data.readInt32(); + char *cmd = NULL; + if (cmdSize) { + cmd = (char *)malloc(cmdSize); + data.read(cmd, cmdSize); + } + uint32_t replySize = data.readInt32(); + uint32_t replySz = replySize; + char *resp = NULL; + if (replySize) { + resp = (char *)malloc(replySize); + } + status_t status = command(cmdCode, cmdSize, cmd, &replySz, resp); + reply->writeInt32(status); + if (replySz < replySize) { + replySize = replySz; + } + reply->writeInt32(replySize); + if (replySize) { + reply->write(resp, replySize); + } + if (cmd) { + free(cmd); + } + if (resp) { + free(resp); + } + return NO_ERROR; + } break; + + case DISCONNECT: { + LOGV("DISCONNECT"); + CHECK_INTERFACE(IEffect, data, reply); + disconnect(); + return NO_ERROR; + } break; + + case GET_CBLK: { + CHECK_INTERFACE(IEffect, data, reply); + reply->writeStrongBinder(getCblk()->asBinder()); + return NO_ERROR; + } break; + + default: + return BBinder::onTransact(code, data, reply, flags); + } +} + +// ---------------------------------------------------------------------------- + +}; // namespace android + |