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Update romfs_gen.c

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a bit fix
This commit is contained in:
enler
2014-09-20 00:06:04 +08:00
parent b5931f88d2
commit ce6c1754ab
1 changed files with 79 additions and 8 deletions
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makerom/romfs_gen.c
+78 -7
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@@ -18,6 +18,7 @@ int PopulateRomfs(romfs_buildctx *ctx);
void BuildRomfsHeader(romfs_buildctx *ctx);
void BuildIvfcHeader(romfs_buildctx *ctx);
void GenIvfcHashTree(romfs_buildctx *ctx);
u32 CalcPathHash(u32 parent,wchar_t * path,u32 start,u32 length);
int PrepareBuildRomFsBinary(ncch_settings *ncchset, romfs_buildctx *ctx)
@@ -328,6 +329,52 @@ u32 GetDirUTableIndex(romfs_buildctx *ctx, fs_dir *dir)
return ret;
}
void AddDirHashKey(romfs_buildctx *ctx,u32 parent,wchar_t * path,u32 dirOffset)
{
u32 hash = CalcPathHash(parent,path,0,wcslen(path));
u32 index = hash % ctx->m_dirUTableEntry;
if(ctx->dirUTable[index] == 0xffffffff) ctx->dirUTable[index] = dirOffset;
else
{
romfs_direntry * curdir = (romfs_direntry*)(ctx->dirTable + ctx->dirUTable[index]);
while(1)
{
if(*(u32*)curdir->weirdoffset == 0xffffffff)
{
*(u32*)curdir->weirdoffset = dirOffset;
break;
}
else
{
curdir = (romfs_direntry*)(ctx->dirTable + *(u32*)curdir->weirdoffset);
}
}
}
}
void AddFileHashKey(romfs_buildctx *ctx,u32 parent,wchar_t * path,u32 fileOffset)
{
u32 hash = CalcPathHash(parent,path,0,wcslen(path));
u32 index = hash % ctx->m_fileUTableEntry;
if(ctx->fileUTable[index] == 0xffffffff) ctx->fileUTable[index] = fileOffset;
else
{
romfs_fileentry * curfile = (romfs_fileentry*)(ctx->fileTable + ctx->fileUTable[index]);
while(1)
{
if(*(u32*)curfile->weirdoffset == 0xffffffff)
{
*(u32*)curfile->weirdoffset = fileOffset;
break;
}
else
{
curfile = (romfs_fileentry*)(ctx->fileTable + *(u32*)curfile->weirdoffset);
}
}
}
}
int AddFileToRomfs(romfs_buildctx *ctx, fs_file *file, u32 parent, u32 sibling)
{
romfs_fileentry *entry = (romfs_fileentry*)(ctx->fileTable + ctx->u_fileTableLen);
@@ -335,9 +382,9 @@ int AddFileToRomfs(romfs_buildctx *ctx, fs_file *file, u32 parent, u32 sibling)
u32_to_u8(entry->parentdiroffset,parent,LE);
u32_to_u8(entry->siblingoffset,sibling,LE);
u32 uTableIndex = GetFileUTableIndex(ctx,file);
u32_to_u8(entry->weirdoffset,ctx->fileUTable[uTableIndex],LE);
ctx->fileUTable[uTableIndex] = ctx->u_fileTableLen;
//u32 uTableIndex = GetFileUTableIndex(ctx,file);
u32_to_u8(entry->weirdoffset,0xffffffff,LE);
//ctx->fileUTable[uTableIndex] = ctx->u_fileTableLen;
// Import Name
u32_to_u8(entry->namesize,file->name_len,LE);
@@ -357,7 +404,7 @@ int AddFileToRomfs(romfs_buildctx *ctx, fs_file *file, u32 parent, u32 sibling)
}
else
u64_to_u8(entry->dataoffset,0x40,LE);
AddFileHashKey(ctx,parent,file->name,ctx->u_fileTableLen);
ctx->u_fileTableLen += sizeof(romfs_fileentry) + align(file->name_len,4);
return 0;
@@ -371,15 +418,16 @@ int AddDirToRomfs(romfs_buildctx *ctx, fs_dir *fs, u32 parent, u32 sibling)
u32_to_u8(entry->parentoffset,parent,LE);
u32_to_u8(entry->siblingoffset,sibling,LE);
u32 uTableIndex = GetDirUTableIndex(ctx,fs);
u32_to_u8(entry->weirdoffset,ctx->dirUTable[uTableIndex],LE);
ctx->dirUTable[uTableIndex] = ctx->u_dirTableLen;
//u32 uTableIndex = GetDirUTableIndex(ctx,fs);
u32_to_u8(entry->weirdoffset,0xffffffff,LE);
//ctx->dirUTable[uTableIndex] = ctx->u_dirTableLen;
u32 Currentdir = ctx->u_dirTableLen;
if(Currentdir == 0)
{
u32_to_u8(entry->namesize,0,LE);
AddDirHashKey(ctx,parent,L"",ctx->u_dirTableLen);
ctx->u_dirTableLen += sizeof(romfs_direntry);
}
else
@@ -388,14 +436,17 @@ int AddDirToRomfs(romfs_buildctx *ctx, fs_dir *fs, u32 parent, u32 sibling)
u8 *name_pos = (u8*)(ctx->dirTable + ctx->u_dirTableLen + sizeof(romfs_direntry));
memset(name_pos,0,(u32)align(fs->name_len,4));
memcpy(name_pos,(u8*)fs->name,fs->name_len);
AddDirHashKey(ctx,parent,fs->name,ctx->u_dirTableLen);
ctx->u_dirTableLen += sizeof(romfs_direntry) + (u32)align(fs->name_len,4);
}
if(fs->u_file)
{
u32_to_u8(entry->fileoffset,ctx->u_fileTableLen,LE);
for(u32 i = 0; i < fs->u_file; i++)
{
u32 file_sibling = 0;
if(i >= fs->u_file-1)
file_sibling = ROMFS_UNUSED_ENTRY;
@@ -404,6 +455,7 @@ int AddDirToRomfs(romfs_buildctx *ctx, fs_dir *fs, u32 parent, u32 sibling)
//wprintf(L"adding %s (0x%lx)\n",fs->file[i].name,fs->file[i].size);
AddFileToRomfs(ctx,&fs->file[i],Currentdir,file_sibling);
//wprintf(L"added %s (0x%lx)\n",fs->file[i].name,fs->file[i].size);
}
}
else
@@ -418,6 +470,7 @@ int AddDirToRomfs(romfs_buildctx *ctx, fs_dir *fs, u32 parent, u32 sibling)
for(u32 i = 0; i < fs->u_dir; i++)
{
u32 dir_sibling = 0;
romfs_direntry *temp_entry = (romfs_direntry*)(ctx->dirTable + ctx->u_dirTableLen);
if(i >= fs->u_dir-1)
dir_sibling = ROMFS_UNUSED_ENTRY;
else
@@ -426,6 +479,11 @@ int AddDirToRomfs(romfs_buildctx *ctx, fs_dir *fs, u32 parent, u32 sibling)
dir_sibling = ctx->u_dirTableLen + sizeof(romfs_direntry) + (u32)align(dir[i].name_len,4);
}
AddDirToRomfs(ctx,&dir[i],Currentdir,dir_sibling);
if(dir_sibling != ROMFS_UNUSED_ENTRY)
{
dir_sibling = ctx->u_dirTableLen;//修复同目录文件夹偏移
u32_to_u8(temp_entry->siblingoffset,dir_sibling,LE);
}
}
}
else
@@ -473,3 +531,16 @@ void GenIvfcHashTree(romfs_buildctx *ctx)
return;
}
u32 CalcPathHash(u32 parent,wchar_t * path,u32 start,u32 length)
{
u32 hash = parent ^ 123456789;
u32 index = 0;
while(index < length)
{
hash = (u32)((hash >> 5) | (hash << 27));//ror
hash ^= (u16)path[start + index];
index++;
}
return hash;
}