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Diffstat (limited to 'media/img_utils/src/EndianUtils.cpp')
-rw-r--r-- | media/img_utils/src/EndianUtils.cpp | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/media/img_utils/src/EndianUtils.cpp b/media/img_utils/src/EndianUtils.cpp new file mode 100644 index 0000000..8681cbe --- /dev/null +++ b/media/img_utils/src/EndianUtils.cpp @@ -0,0 +1,83 @@ +/* + * Copyright 2014 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. + */ + +#include <img_utils/EndianUtils.h> + +namespace android { +namespace img_utils { + +EndianOutput::EndianOutput(Output* out, Endianness end) + : mOffset(0), mOutput(out), mEndian(end) {} + +EndianOutput::~EndianOutput() {} + +status_t EndianOutput::open() { + mOffset = 0; + return mOutput->open(); +} + +status_t EndianOutput::close() { + return mOutput->close(); +} + +void EndianOutput::setEndianness(Endianness end) { + mEndian = end; +} + +uint32_t EndianOutput::getCurrentOffset() const { + return mOffset; +} + +Endianness EndianOutput::getEndianness() const { + return mEndian; +} + +status_t EndianOutput::write(const uint8_t* buf, size_t offset, size_t count) { + status_t res = OK; + if((res = mOutput->write(buf, offset, count)) == OK) { + mOffset += count; + } + return res; +} + +status_t EndianOutput::write(const int8_t* buf, size_t offset, size_t count) { + return write(reinterpret_cast<const uint8_t*>(buf), offset, count); +} + +#define DEFINE_WRITE(_type_) \ +status_t EndianOutput::write(const _type_* buf, size_t offset, size_t count) { \ + return writeHelper<_type_>(buf, offset, count); \ +} + +DEFINE_WRITE(uint16_t) +DEFINE_WRITE(int16_t) +DEFINE_WRITE(uint32_t) +DEFINE_WRITE(int32_t) +DEFINE_WRITE(uint64_t) +DEFINE_WRITE(int64_t) + +status_t EndianOutput::write(const float* buf, size_t offset, size_t count) { + assert(sizeof(float) == sizeof(uint32_t)); + return writeHelper<uint32_t>(reinterpret_cast<const uint32_t*>(buf), offset, count); +} + +status_t EndianOutput::write(const double* buf, size_t offset, size_t count) { + assert(sizeof(double) == sizeof(uint64_t)); + return writeHelper<uint64_t>(reinterpret_cast<const uint64_t*>(buf), offset, count); +} + +} /*namespace img_utils*/ +} /*namespace android*/ |