mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-12-25 11:10:47 +00:00
135 lines
4 KiB
C++
135 lines
4 KiB
C++
|
|
/*
|
|
** compositesavegame.cpp
|
|
** Container for savegame files with multiple sub-content
|
|
**
|
|
**---------------------------------------------------------------------------
|
|
** Copyright 2019 Christoph Oelckers
|
|
** All rights reserved.
|
|
**
|
|
** Redistribution and use in source and binary forms, with or without
|
|
** modification, are permitted provided that the following conditions
|
|
** are met:
|
|
**
|
|
** 1. Redistributions of source code must retain the above copyright
|
|
** notice, this list of conditions and the following disclaimer.
|
|
** 2. Redistributions in binary form must reproduce the above copyright
|
|
** notice, this list of conditions and the following disclaimer in the
|
|
** documentation and/or other materials provided with the distribution.
|
|
** 3. The name of the author may not be used to endorse or promote products
|
|
** derived from this software without specific prior written permission.
|
|
**
|
|
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OFf
|
|
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
**---------------------------------------------------------------------------
|
|
**
|
|
*/
|
|
|
|
#include <zlib.h>
|
|
#include "compositesaveame.h"
|
|
#include "file_zip.h"
|
|
#include "resourcefile.h"
|
|
|
|
|
|
bool WriteZip(const char *filename, TArray<FString> &filenames, TArray<FCompressedBuffer> &content);
|
|
|
|
|
|
FileWriter &CompositeSavegameWriter::NewElement(const char *filename, bool compress)
|
|
{
|
|
subfilenames.Push(filename);
|
|
isCompressed.Push(compress);
|
|
auto bwr = new BufferWriter;
|
|
subfiles.Push(bwr);
|
|
return *bwr;
|
|
}
|
|
|
|
FCompressedBuffer CompositeSavegameWriter::CompressElement(BufferWriter *bw, bool compress)
|
|
{
|
|
FCompressedBuffer buff;
|
|
auto buffer =bw->GetBuffer();
|
|
buff.mSize = buffer->Size();
|
|
buff.mZipFlags = 0;
|
|
buff.mCRC32 = crc32(0, (const Bytef*)buffer->Data(), buffer->Size());
|
|
|
|
uint8_t *compressbuf = new uint8_t[buff.mSize+1];
|
|
|
|
z_stream stream;
|
|
int err;
|
|
|
|
stream.next_in = (Bytef *)buffer->Data();
|
|
stream.avail_in = buff.mSize;
|
|
stream.next_out = (Bytef*)compressbuf;
|
|
stream.avail_out = buff.mSize;
|
|
stream.zalloc = (alloc_func)0;
|
|
stream.zfree = (free_func)0;
|
|
stream.opaque = (voidpf)0;
|
|
|
|
if (!compress) goto error;
|
|
|
|
// create output in zip-compatible form as required by FCompressedBuffer
|
|
err = deflateInit2(&stream, 8, Z_DEFLATED, -15, 9, Z_DEFAULT_STRATEGY);
|
|
if (err != Z_OK)
|
|
{
|
|
goto error;
|
|
}
|
|
|
|
err = deflate(&stream, Z_FINISH);
|
|
if (err != Z_STREAM_END)
|
|
{
|
|
deflateEnd(&stream);
|
|
goto error;
|
|
}
|
|
buff.mCompressedSize = stream.total_out;
|
|
|
|
err = deflateEnd(&stream);
|
|
if (err == Z_OK)
|
|
{
|
|
buff.mBuffer = new char[buff.mCompressedSize];
|
|
buff.mMethod = METHOD_DEFLATE;
|
|
memcpy(buff.mBuffer, compressbuf, buff.mCompressedSize);
|
|
delete[] compressbuf;
|
|
return buff;
|
|
}
|
|
|
|
error:
|
|
if (buff.mSize) memcpy(compressbuf, buffer->Data(), buff.mSize + 1);
|
|
buff.mBuffer = (char*)compressbuf;
|
|
buff.mCompressedSize = buff.mSize;
|
|
buff.mMethod = METHOD_STORED;
|
|
return buff;
|
|
|
|
}
|
|
|
|
bool CompositeSavegameWriter::WriteToFile()
|
|
{
|
|
if (subfiles.Size() == 0) return false;
|
|
TArray<FCompressedBuffer> compressed(subfiles.Size(), 1);
|
|
for (unsigned i = 0; i < subfiles.Size(); i++)
|
|
{
|
|
compressed[i] = CompressElement(subfiles[i], isCompressed[i]);
|
|
}
|
|
|
|
if (WriteZip(filename, subfilenames, compressed))
|
|
{
|
|
// Check whether the file is ok by trying to open it.
|
|
//FResourceFile *test = FResourceFile::OpenResourceFile(filename, true);
|
|
//if (test != nullptr)
|
|
{
|
|
Clear();
|
|
//delete test;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
Clear();
|
|
return false;
|
|
}
|
|
|