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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /media/gmp-clearkey/0.1/BigEndian.h | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'media/gmp-clearkey/0.1/BigEndian.h')
-rw-r--r-- | media/gmp-clearkey/0.1/BigEndian.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/media/gmp-clearkey/0.1/BigEndian.h b/media/gmp-clearkey/0.1/BigEndian.h new file mode 100644 index 000000000..853cd4a02 --- /dev/null +++ b/media/gmp-clearkey/0.1/BigEndian.h @@ -0,0 +1,68 @@ +/* + * Copyright 2015, Mozilla Foundation and contributors + * + * 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 __BigEndian_h__ +#define __BigEndian_h__ + +#include <stdint.h> + +namespace mozilla { + +class BigEndian { +public: + + static uint32_t readUint32(const void* aPtr) { + const uint8_t* p = reinterpret_cast<const uint8_t*>(aPtr); + return uint32_t(p[0]) << 24 | + uint32_t(p[1]) << 16 | + uint32_t(p[2]) << 8 | + uint32_t(p[3]); + } + + static uint16_t readUint16(const void* aPtr) { + const uint8_t* p = reinterpret_cast<const uint8_t*>(aPtr); + return uint32_t(p[0]) << 8 | + uint32_t(p[1]); + } + + static uint64_t readUint64(const void* aPtr) { + const uint8_t* p = reinterpret_cast<const uint8_t*>(aPtr); + return uint64_t(p[0]) << 56 | + uint64_t(p[1]) << 48 | + uint64_t(p[2]) << 40 | + uint64_t(p[3]) << 32 | + uint64_t(p[4]) << 24 | + uint64_t(p[5]) << 16 | + uint64_t(p[6]) << 8 | + uint64_t(p[7]); + } + + static void writeUint64(void* aPtr, uint64_t aValue) { + uint8_t* p = reinterpret_cast<uint8_t*>(aPtr); + p[0] = uint8_t(aValue >> 56) & 0xff; + p[1] = uint8_t(aValue >> 48) & 0xff; + p[2] = uint8_t(aValue >> 40) & 0xff; + p[3] = uint8_t(aValue >> 32) & 0xff; + p[4] = uint8_t(aValue >> 24) & 0xff; + p[5] = uint8_t(aValue >> 16) & 0xff; + p[6] = uint8_t(aValue >> 8) & 0xff; + p[7] = uint8_t(aValue) & 0xff; + } +}; + +} // namespace mozilla + +#endif // __BigEndian_h__ |