   Packing all multimedia in one file
  Hello,I would want to package all image of my game in one file like a .dat file.How can i do this?At moment i have various bmp image that i load (with SDL) with IMG_Load("image.bmp").Tank's   
  You can zip it, and extract it when you load data from your game.That's probably the easiest way to do it, it might save you some disk space as well. :)   ;  I don't know about SDL but the way I do this with DirectDraw is to have a tool that converts my bitmaps to raw RGB Quads which are saved to a file. I can then structure the file how I want and include additional information like image size and offsets. When I load them onto a surface I use Win32 StretchDIBits which requires a windows device context to the surface and bung the RGB quad data back on the surface like that.Don't know if SDL gives you a DC to its bitmap types.   ;  Using a virtual file system like PhysFS, you can have all of your game data in zip files and still read them in like a normal directory heirarchy.  When you use this method, you'll be reading in surfaces via RWops.  There a lot of information on how to read in surfaces via RWops here.   ;  Hello,Fist of all many tank's for reponse.I have tried to use RWops but i have some problems when i try to load a gzipped image . here the code:file = gzopen("sfondo.bmp.gz", "r");fileSize = gzread(file, buffer, 1550000);rw = SDL_RWFromMem(buffer, fileSize);sfondo = SDL_LoadBMP_RW(rw, 0);applica_superficie( bgX, bgY, sfondo, screen );applica_superficie function is my function for blitting surface with SDL_BlitSurface.Here prototype:void applica_superficie( int x, int y, SDL_Surface* source, SDL_Surface* destination )The problem is taht the image is not loaded and i can see only a black screen.What's the problem?Tank's