52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/*
|
|
* Copyright (C) 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.
|
|
*/
|
|
|
|
#ifndef ANDROID_EFFECTCBASESHARED_H
|
|
#define ANDROID_EFFECTCBASESHARED_H
|
|
|
|
#include <stdint.h>
|
|
#include <sys/types.h>
|
|
|
|
#include <utils/threads.h>
|
|
|
|
namespace android {
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// Size of buffer used to exchange parameters between application and mediaserver processes.
|
|
#define EFFECT_PARAM_BUFFER_SIZE 1024
|
|
|
|
|
|
// Shared memory area used to exchange parameters between application and mediaserver
|
|
// process.
|
|
struct effect_param_cblk_t
|
|
{
|
|
Mutex lock;
|
|
volatile uint32_t clientIndex; // Current read/write index for application
|
|
volatile uint32_t serverIndex; // Current read/write index for mediaserver
|
|
uint8_t* buffer; // start of parameter buffer
|
|
|
|
effect_param_cblk_t()
|
|
: lock(Mutex::SHARED), clientIndex(0), serverIndex(0) {}
|
|
};
|
|
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
}; // namespace android
|
|
|
|
#endif // ANDROID_EFFECTCBASESHARED_H
|