You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
66 lines
1.9 KiB
66 lines
1.9 KiB
4 months ago
|
/*
|
||
|
* Copyright (C) 2020 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 STAGEFRIGHT_CODEC2_ALLOCATION_ION_H_
|
||
|
#define STAGEFRIGHT_CODEC2_ALLOCATION_ION_H_
|
||
|
|
||
|
#include <C2Buffer.h>
|
||
|
|
||
|
namespace android {
|
||
|
|
||
|
struct C2HandleIon : public C2Handle {
|
||
|
// ion handle owns ionFd(!) and bufferFd
|
||
|
C2HandleIon(int bufferFd, size_t size)
|
||
|
: C2Handle(cHeader),
|
||
|
mFds{ bufferFd },
|
||
|
mInts{ int(size & 0xFFFFFFFF), int((uint64_t(size) >> 32) & 0xFFFFFFFF), kMagic } { }
|
||
|
|
||
|
static bool IsValid(const C2Handle * const o);
|
||
|
|
||
|
// deprecated
|
||
|
static bool isValid(const C2Handle * const o) { return IsValid(o); }
|
||
|
|
||
|
int bufferFd() const { return mFds.mBuffer; }
|
||
|
size_t size() const {
|
||
|
return size_t(unsigned(mInts.mSizeLo))
|
||
|
| size_t(uint64_t(unsigned(mInts.mSizeHi)) << 32);
|
||
|
}
|
||
|
|
||
|
protected:
|
||
|
struct {
|
||
|
int mBuffer; // shared ion buffer
|
||
|
} mFds;
|
||
|
struct {
|
||
|
int mSizeLo; // low 32-bits of size
|
||
|
int mSizeHi; // high 32-bits of size
|
||
|
int mMagic;
|
||
|
} mInts;
|
||
|
|
||
|
private:
|
||
|
typedef C2HandleIon _type;
|
||
|
enum {
|
||
|
kMagic = '\xc2io\x00',
|
||
|
numFds = sizeof(mFds) / sizeof(int),
|
||
|
numInts = sizeof(mInts) / sizeof(int),
|
||
|
version = sizeof(C2Handle)
|
||
|
};
|
||
|
//constexpr static C2Handle cHeader = { version, numFds, numInts, {} };
|
||
|
const static C2Handle cHeader;
|
||
|
};
|
||
|
} // namespace android
|
||
|
|
||
|
#endif // STAGEFRIGHT_CODEC2_ALLOCATION_ION_H_
|