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MRA: lookup rom parts by CRC first if "crc" attribute exists

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MRA: supported ordered list "zip" attribute, (use '|' as delimiter)
This commit is contained in:
zakk4223
2020-01-08 02:16:47 -05:00
committed by sorgelig
parent 85b677a32d
commit a71c49be97
3 changed files with 142 additions and 12 deletions
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98
file_io.cpp
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@@ -235,6 +235,104 @@ void FileClose(fileTYPE *file)
file->filp = nullptr;
}
int zip_search_by_crc(mz_zip_archive *zipArchive, uint32_t crc32)
{
for (unsigned int file_index = 0; file_index < zipArchive->m_total_files; file_index++)
{
mz_zip_archive_file_stat s;
if (mz_zip_reader_file_stat(zipArchive, file_index, &s))
{
if (s.m_crc32 == crc32)
{
return file_index;
}
}
}
return -1;
}
int FileOpenZip(fileTYPE *file, const char *name, uint32_t crc32, int mode, char mute)
{
make_fullpath((char*)name, mode);
FileClose(file);
file->mode = 0;
file->type = 0;
char *p = strrchr(full_path, '/');
strcpy(file->name, (mode == -1) ? full_path : p + 1);
char *zip_path, *file_path;
if ((mode != -1) && FileIsZipped(full_path, &zip_path, &file_path))
{
if (mode & O_RDWR || mode & O_WRONLY)
{
if(!mute) printf("FileOpenZip(mode) Zip:%s, writing to zipped files is not supported.\n",
full_path);
return 0;
}
file->zip = new fileZipArchive{};
if (!mz_zip_reader_init_file(&file->zip->archive, zip_path, 0))
{
if(!mute) printf("FileOpenZip(mz_zip_reader_init_file) Zip:%s, error:%s\n", zip_path,
mz_zip_get_error_string(mz_zip_get_last_error(&file->zip->archive)));
return 0;
}
if (crc32)
{
file->zip->index = zip_search_by_crc(&file->zip->archive, crc32);
}
if (file->zip->index < 0 || !crc32)
{
file->zip->index = mz_zip_reader_locate_file(&file->zip->archive, file_path, NULL, 0);
}
if (file->zip->index < 0)
{
if(!mute) printf("FileOpenZip(mz_zip_reader_locate_file) Zip:%s, file:%s, error: %s\n",
zip_path, file_path,
mz_zip_get_error_string(mz_zip_get_last_error(&file->zip->archive)));
FileClose(file);
return 0;
}
mz_zip_archive_file_stat s;
if (!mz_zip_reader_file_stat(&file->zip->archive, file->zip->index, &s))
{
if(!mute) printf("FileOpenZip(mz_zip_reader_file_stat) Zip:%s, file:%s, error:%s\n",
zip_path, file_path,
mz_zip_get_error_string(mz_zip_get_last_error(&file->zip->archive)));
FileClose(file);
return 0;
}
file->size = s.m_uncomp_size;
file->zip->iter = mz_zip_reader_extract_iter_new(&file->zip->archive, file->zip->index, 0);
if (!file->zip->iter)
{
if(!mute) printf("FileOpenZip(mz_zip_reader_extract_iter_new) Zip:%s, file:%s, error:%s\n",
zip_path, file_path,
mz_zip_get_error_string(mz_zip_get_last_error(&file->zip->archive)));
FileClose(file);
return 0;
}
file->zip->offset = 0;
file->offset = 0;
file->mode = mode;
} else {
return 0;
}
return 1;
}
int FileOpenEx(fileTYPE *file, const char *name, int mode, char mute)
{
make_fullpath((char*)name, mode);