1 /*
2 * Copyright 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <img_utils/EndianUtils.h>
18
19 namespace android {
20 namespace img_utils {
21
EndianOutput(Output * out,Endianness end)22 EndianOutput::EndianOutput(Output* out, Endianness end)
23 : mOffset(0), mOutput(out), mEndian(end) {}
24
~EndianOutput()25 EndianOutput::~EndianOutput() {}
26
open()27 status_t EndianOutput::open() {
28 mOffset = 0;
29 return mOutput->open();
30 }
31
close()32 status_t EndianOutput::close() {
33 return mOutput->close();
34 }
35
setEndianness(Endianness end)36 void EndianOutput::setEndianness(Endianness end) {
37 mEndian = end;
38 }
39
getCurrentOffset() const40 uint32_t EndianOutput::getCurrentOffset() const {
41 return mOffset;
42 }
43
getEndianness() const44 Endianness EndianOutput::getEndianness() const {
45 return mEndian;
46 }
47
write(const uint8_t * buf,size_t offset,size_t count)48 status_t EndianOutput::write(const uint8_t* buf, size_t offset, size_t count) {
49 status_t res = OK;
50 if((res = mOutput->write(buf, offset, count)) == OK) {
51 mOffset += count;
52 }
53 return res;
54 }
55
write(const int8_t * buf,size_t offset,size_t count)56 status_t EndianOutput::write(const int8_t* buf, size_t offset, size_t count) {
57 return write(reinterpret_cast<const uint8_t*>(buf), offset, count);
58 }
59
60 #define DEFINE_WRITE(_type_) \
61 status_t EndianOutput::write(const _type_* buf, size_t offset, size_t count) { \
62 return writeHelper<_type_>(buf, offset, count); \
63 }
64
65 DEFINE_WRITE(uint16_t)
DEFINE_WRITE(int16_t)66 DEFINE_WRITE(int16_t)
67 DEFINE_WRITE(uint32_t)
68 DEFINE_WRITE(int32_t)
69 DEFINE_WRITE(uint64_t)
70 DEFINE_WRITE(int64_t)
71
72 status_t EndianOutput::write(const float* buf, size_t offset, size_t count) {
73 assert(sizeof(float) == sizeof(uint32_t));
74 return writeHelper<uint32_t>(reinterpret_cast<const uint32_t*>(buf), offset, count);
75 }
76
write(const double * buf,size_t offset,size_t count)77 status_t EndianOutput::write(const double* buf, size_t offset, size_t count) {
78 assert(sizeof(double) == sizeof(uint64_t));
79 return writeHelper<uint64_t>(reinterpret_cast<const uint64_t*>(buf), offset, count);
80 }
81
82 } /*namespace img_utils*/
83 } /*namespace android*/
84