diff options
Diffstat (limited to 'archive/hgewin/resource.cpp')
| -rwxr-xr-x | archive/hgewin/resource.cpp | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/archive/hgewin/resource.cpp b/archive/hgewin/resource.cpp new file mode 100755 index 0000000..6921dc6 --- /dev/null +++ b/archive/hgewin/resource.cpp @@ -0,0 +1,259 @@ +/* +** Haaf's Game Engine 1.8 +** Copyright (C) 2003-2007, Relish Games +** hge.relishgames.com +** +** Core functions implementation: resources management +*/ + + +#include "hge_impl.h" + +#define NOCRYPT +//#define NOUNCRYPT +#include "ZLIB/unzip.h" + + +bool CALL HGE_Impl::Resource_AttachPack(const char *filename, const char *password) +{ + char *szName; + CResourceList *resItem=res; + unzFile zip; + + szName=Resource_MakePath(filename); + strupr(szName); + + while(resItem) + { + if(!strcmp(szName,resItem->filename)) return false; + resItem=resItem->next; + } + + zip=unzOpen(szName); + if(!zip) return false; + unzClose(zip); + + resItem=new CResourceList; + strcpy(resItem->filename, szName); + if(password) strcpy(resItem->password, password); + else resItem->password[0]=0; + resItem->next=res; + res=resItem; + + return true; +} + +void CALL HGE_Impl::Resource_RemovePack(const char *filename) +{ + char *szName; + CResourceList *resItem=res, *resPrev=0; + + szName=Resource_MakePath(filename); + strupr(szName); + + while(resItem) + { + if(!strcmp(szName,resItem->filename)) + { + if(resPrev) resPrev->next=resItem->next; + else res=resItem->next; + delete resItem; + break; + } + + resPrev=resItem; + resItem=resItem->next; + } +} + +void CALL HGE_Impl::Resource_RemoveAllPacks() +{ + CResourceList *resItem=res, *resNextItem; + + while(resItem) + { + resNextItem=resItem->next; + delete resItem; + resItem=resNextItem; + } + + res=0; +} +#undef DWORD +void* CALL HGE_Impl::Resource_Load(const char *filename, DWORD *size) +{ + static const char *res_err="Can't load resource: %s"; + + CResourceList *resItem=res; + char szName[_MAX_PATH]; + char szZipName[_MAX_PATH]; + unzFile zip; + unz_file_info file_info; + int done, i; + void *ptr; + HANDLE hF; + + if(filename[0]=='\\' || filename[0]=='/' || filename[1]==':') goto _fromfile; // skip absolute paths + + // Load from pack + + strcpy(szName,filename); + strupr(szName); + for(i=0; szName[i]; i++) { if(szName[i]=='/') szName[i]='\\'; } + + while(resItem) + { + zip=unzOpen(resItem->filename); + done=unzGoToFirstFile(zip); + while(done==UNZ_OK) + { + unzGetCurrentFileInfo(zip, &file_info, szZipName, sizeof(szZipName), NULL, 0, NULL, 0); + strupr(szZipName); + for(i=0; szZipName[i]; i++) { if(szZipName[i]=='/') szZipName[i]='\\'; } + if(!strcmp(szName,szZipName)) + { + if(unzOpenCurrentFilePassword(zip, resItem->password[0] ? resItem->password : 0) != UNZ_OK) + { + unzClose(zip); + sprintf(szName, res_err, filename); + _PostError(szName); + return 0; + } + + ptr = malloc(file_info.uncompressed_size); + if(!ptr) + { + unzCloseCurrentFile(zip); + unzClose(zip); + sprintf(szName, res_err, filename); + _PostError(szName); + return 0; + } + + if(unzReadCurrentFile(zip, ptr, file_info.uncompressed_size) < 0) + { + unzCloseCurrentFile(zip); + unzClose(zip); + free(ptr); + sprintf(szName, res_err, filename); + _PostError(szName); + return 0; + } + unzCloseCurrentFile(zip); + unzClose(zip); + if(size) *size=file_info.uncompressed_size; + return ptr; + } + + done=unzGoToNextFile(zip); + } + + unzClose(zip); + resItem=resItem->next; + } + + // Load from file +_fromfile: + + hF = CreateFile(Resource_MakePath(filename), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS, NULL); + if(hF == INVALID_HANDLE_VALUE) + { + sprintf(szName, res_err, filename); + _PostError(szName); + return 0; + } + file_info.uncompressed_size = GetFileSize(hF, NULL); + ptr = malloc(file_info.uncompressed_size); + if(!ptr) + { + CloseHandle(hF); + sprintf(szName, res_err, filename); + _PostError(szName); + return 0; + } + if(ReadFile(hF, ptr, file_info.uncompressed_size, (LPDWORD)&file_info.uncompressed_size, NULL ) == 0) + { + CloseHandle(hF); + free(ptr); + sprintf(szName, res_err, filename); + _PostError(szName); + return 0; + } + + CloseHandle(hF); + if(size) *size=file_info.uncompressed_size; + return ptr; +} + + +void CALL HGE_Impl::Resource_Free(void *res) +{ + if(res) free(res); +} + + +char* CALL HGE_Impl::Resource_MakePath(const char *filename) +{ + int i; + + if(!filename) + strcpy(szTmpFilename, szAppPath); + else if(filename[0]=='\\' || filename[0]=='/' || filename[1]==':') + strcpy(szTmpFilename, filename); + else + { + strcpy(szTmpFilename, szAppPath); + if(filename) strcat(szTmpFilename, filename); + } + + for(i=0; szTmpFilename[i]; i++) { if(szTmpFilename[i]=='/') szTmpFilename[i]='\\'; } + return szTmpFilename; +} + +char* CALL HGE_Impl::Resource_EnumFiles(const char *wildcard) +{ + if(wildcard) + { + if(hSearch) { FindClose(hSearch); hSearch=0; } + hSearch=FindFirstFile(Resource_MakePath(wildcard), &SearchData); + if(hSearch==INVALID_HANDLE_VALUE) { hSearch=0; return 0; } + + if(!(SearchData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) return SearchData.cFileName; + else return Resource_EnumFiles(); + } + else + { + if(!hSearch) return 0; + for(;;) + { + if(!FindNextFile(hSearch, &SearchData)) { FindClose(hSearch); hSearch=0; return 0; } + if(!(SearchData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) return SearchData.cFileName; + } + } +} + +char* CALL HGE_Impl::Resource_EnumFolders(const char *wildcard) +{ + if(wildcard) + { + if(hSearch) { FindClose(hSearch); hSearch=0; } + hSearch=FindFirstFile(Resource_MakePath(wildcard), &SearchData); + if(hSearch==INVALID_HANDLE_VALUE) { hSearch=0; return 0; } + + if((SearchData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && + strcmp(SearchData.cFileName,".") && strcmp(SearchData.cFileName,"..")) + return SearchData.cFileName; + else return Resource_EnumFolders(); + } + else + { + if(!hSearch) return 0; + for(;;) + { + if(!FindNextFile(hSearch, &SearchData)) { FindClose(hSearch); hSearch=0; return 0; } + if((SearchData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) && + strcmp(SearchData.cFileName,".") && strcmp(SearchData.cFileName,"..")) + return SearchData.cFileName; + } + } +} |