mirror of
https://github.com/scummvm/scummvm.git
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133 lines
3.4 KiB
C++
133 lines
3.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "ags/shared/util/data_stream.h"
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namespace AGS3 {
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namespace AGS {
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namespace Shared {
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DataStream::DataStream(DataEndianess stream_endianess)
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: _streamEndianess(stream_endianess) {
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}
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DataStream::~DataStream() {}
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int16_t DataStream::ReadInt16() {
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int16_t val = 0;
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Read(&val, sizeof(int16_t));
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ConvertInt16(val);
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return val;
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}
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int32_t DataStream::ReadInt32() {
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int32_t val = 0;
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Read(&val, sizeof(int32_t));
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ConvertInt32(val);
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return val;
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}
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int64_t DataStream::ReadInt64() {
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int64_t val = 0;
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Read(&val, sizeof(int64_t));
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ConvertInt64(val);
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return val;
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}
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size_t DataStream::WriteInt16(int16_t val) {
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ConvertInt16(val);
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return Write(&val, sizeof(int16_t));
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}
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size_t DataStream::WriteInt32(int32_t val) {
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ConvertInt32(val);
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return Write(&val, sizeof(int32_t));
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}
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size_t DataStream::WriteInt64(int64_t val) {
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ConvertInt64(val);
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return Write(&val, sizeof(int64_t));
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}
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size_t DataStream::ReadAndConvertArrayOfInt16(int16_t *buffer, size_t count) {
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count = ReadArray(buffer, sizeof(int16_t), count);
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for (size_t i = 0; i < count; ++i, ++buffer) {
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*buffer = BBOp::SwapBytesInt16(*buffer);
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}
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return count;
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}
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size_t DataStream::ReadAndConvertArrayOfInt32(int32_t *buffer, size_t count) {
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count = ReadArray(buffer, sizeof(int32_t), count);
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for (size_t i = 0; i < count; ++i, ++buffer) {
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*buffer = BBOp::SwapBytesInt32(*buffer);
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}
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return count;
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}
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size_t DataStream::ReadAndConvertArrayOfInt64(int64_t *buffer, size_t count) {
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count = ReadArray(buffer, sizeof(int64_t), count);
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for (size_t i = 0; i < count; ++i, ++buffer) {
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*buffer = BBOp::SwapBytesInt64(*buffer);
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}
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return count;
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}
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size_t DataStream::WriteAndConvertArrayOfInt16(const int16_t *buffer, size_t count) {
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size_t elem;
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for (elem = 0; elem < count && !EOS(); ++elem, ++buffer) {
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int16_t val = *buffer;
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ConvertInt16(val);
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if (Write(&val, sizeof(int16_t)) < sizeof(int16_t)) {
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break;
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}
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}
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return elem;
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}
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size_t DataStream::WriteAndConvertArrayOfInt32(const int32_t *buffer, size_t count) {
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size_t elem;
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for (elem = 0; elem < count && !EOS(); ++elem, ++buffer) {
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int32_t val = *buffer;
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ConvertInt32(val);
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if (Write(&val, sizeof(int32_t)) < sizeof(int32_t)) {
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break;
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}
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}
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return elem;
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}
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size_t DataStream::WriteAndConvertArrayOfInt64(const int64_t *buffer, size_t count) {
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size_t elem;
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for (elem = 0; elem < count && !EOS(); ++elem, ++buffer) {
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int64_t val = *buffer;
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ConvertInt64(val);
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if (Write(&val, sizeof(int64_t)) < sizeof(int64_t)) {
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break;
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}
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}
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return elem;
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}
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} // namespace Shared
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} // namespace AGS
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} // namespace AGS3
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