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Luma3DS-3GX/sysmodules/rosalina/source/3gx.c

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2018-11-15 13:38:19 +01:00
#include <3ds.h>
#include "3gx.h"
Result Read_3gx_Header(IFile *file, _3gx_Header *header)
{
u64 total;
char * dst;
Result res = 0;
res = IFile_Read(file, &total, header, sizeof(_3gx_Header));
if (R_FAILED(res))
return res;
// Read author
file->pos = (u32)header->infos.authorMsg;
dst = (char *)header + sizeof(_3gx_Header);
res = IFile_Read(file, &total, dst, header->infos.authorLen);
if (R_FAILED(res))
return res;
// Relocate ptr
header->infos.authorMsg = dst;
// Read title
file->pos = (u32)header->infos.titleMsg;
dst += header->infos.authorLen;
res = IFile_Read(file, &total, dst, header->infos.titleLen);
if (R_FAILED(res))
return res;
// Relocate ptr
header->infos.titleMsg = dst;
// Declare other members as null (unused in our case)
header->infos.summaryLen = 0;
header->infos.summaryMsg = NULL;
header->infos.descriptionLen = 0;
header->infos.descriptionMsg = NULL;
// Read targets compatibility
file->pos = (u32)header->targets.titles;
dst += header->infos.titleLen;
dst += 4 - ((u32)dst & 3); // 4 bytes aligned
res = IFile_Read(file, &total, dst, header->targets.count * sizeof(u32));
if (R_FAILED(res))
return res;
// Relocate ptr
header->targets.titles = (u32 *)dst;
return res;
}
Result Read_3gx_Code(IFile *file, _3gx_Header *header, void *dst)
{
u64 total;
Result res = 0;
file->pos = (u32)header->code;
res = IFile_Read(file, &total, dst, header->codeSize);
return res;
}