Compiling ScummVM/Visual Studio
Compiling ScummVM with Visual Studio 2003/2005 under Windows
Compiling ScummVM under Windows is not an awfully hard task, however there are some things that don't just work out of the box
Visual Studio 2008
There exist several versions of Visual Studio 2008. A feature comparison can be found here
You can obtain the free Express version of VS2008 here
Although Visual Studio 2008 is preferred if you happen to use the older Visual Studio 2005 you have to have at least Service Pack 1 installed for it (as Visual Studio 2005 without Service Pack 1 has problems with ScummVM's template code).
To ease the whole process, a package of all the needed precompiled libraries has been created. All you need to do is:
- Download the precompiled libraries and the latest SDL runtime library - latest version is 1.2.12 at the time this was written, you can find the latest version here. Mirrors for precompiled libraries:
- Unzip the precompiled libraries archive maintaining directory structure
- Run install.bat (Visual Studio 2005/2008 only)
- You don't need to add the libraries to Visual Studio, as the installer automatically copies the necessary files in the appropriate directories of Visual Studio. Please note that this installer has only been tested with Visual Studio 2005 and 2008. If you get errors with earlier versions of Visual Studio, simply copy the directories bin, lib and include inside the directory where Visual C++ is installed. If you're not sure how to do that, check the section "Adding all libraries to Visual Studio" further on
- Unzip sdl.dll from the SDL runtime in the same directory where the scummvm executable will be created (default is under dits\msvc9\scummvm_Release, substitute msvc9 for msvc8 if you're using Visual Studio 2005 and msvc7 if you're using Visual Studio 2003)
- Skip to step "Ready to compile ScummVM"
You need the file SDL-devel-1.2.11-VC6.zip (1.2.11 is the latest version at this time)
Note that the libraries included in the "vorbis" package won't work. You need libogg and libvorbis, not vorbis
- libmad for MP3 support
- libmpeg2 for MPEG-2 support
Get the latest mpeg2dec release from this page, libmpeg2 is included there
- zlib. You need the latest zlib compiled DLL
If you wish to compile zlib statically in ScummVM (so that zlib1.dll is not needed), you'll also need the zlib source code. If you wish to compile ScummVM 0.8.0 or earlier with zlib support, you'll need the zlib source as well as crtdll.lib.
Building the libraries
Now, we need to compile the required libraries.
Note that you'll need to build all libraries with the same configuration settings (debug or release). If you don't need a specific library, you can remove it from your build by going to Project->Properties, Configuration Properties->C/C++->Preprocessor and remove the "USE_XXX" directive for that library from there. For example, to remove OGG support, remove the USE_VORBIS directive
A note about VS2008/2005
If you're building the libraries with VS2008/2005, you will get a lot of deprecation warnings. These are normal and nothing to worry about, they're just Microsoft's way of saying "This is a bad code practice. Use this instead". It's not easy to turn these off without several modifications to the code, so just ignore them.
Read more here:
If you do wish to make them disappear, you need to include on top the main function of each library, before the includes, the following lines:
#if (_MSC_VER >= 1400) /* VC8+ (VS2005) */ #pragma warning(disable : 4996) /* Disable all deprecation warnings */ #endif /* VC8+ (VS2005) */
First of all, we need nasm. So unzip the nasm archive in a directory, copy "nasmw.exe" to "nasm.exe" (because some projects call one and others call the other) and include it in the executable path of VS. To do this, go to Tools->Options->Projects and solutions->VC++ directories. Select "Executable files" from the top right and include the directory where you unzipped nasm into.
SDL is already compiled and needs no further changes, so we can skip the compilation step for it
You'll need the zlib source package. Go into the projects directory in the zlib source and open the solution there. For each of the 3 projects in the solution (example, minigzip and zlib) you need to right-click it in the solution explorer and go to properties. Then, go to Configuration Properties->C/C++->Code Generation and change the Runtime library from "Multi-Threaded DLL (/MD)" to "Multi-Threaded (/MT)". When you've changed all three projects, compile the solution using the LIB release configuration.
Compile this first, as many other libraries need it. Go to the win32 directory and build the ogg solution in there. DON'T compile the solution in the VS2003 directory, as this produces "libogg.lib" instead of "ogg.lib". A simple rename might work, though
Before compiling this, include the libogg include and library paths in VS. To do this, go to Tools->Options->Projects and solutions->VC++ directories and include the include directory of libogg as well as the directory with the compiled ogg library
Open the solution and compile project "libmpeg2". After you compile it, go to its include directory, create a folder "mpeg2dec" in there and copy all files from the include folder in this subfolder. You will end up with 2 directories, "include" and "include\mpeg2dec" with the same files. This is needed, as ScummVM includes files from the "mpeg2dec" directory
Open and compile the "libmad" solution
Open its solution and compile the libFLAC_static project.
Adding all libraries to Visual Studio
There are two ways of adding the libraries to Visual Studio. You can either copy all the header and library files inside the appropriate directories of Visual C++ or tell Visual C++ where to look for them.
First method: Copy the files inside VC++'s folders
The first method of adding the required libraries is to go to each individual compiled library and copy the header and library files.
You'll need the following:
libFLAC_static.lib - static build of libFLAC (from folder obj\release\lib where you unzipped libFLAC) libmad.lib - static build of libMAD (from folder msvc++\Release where you unzipped libmad) libmpeg2.lib - static build of libMPEG2 (from folder vc++\Release where you unzipped mpeg2dec) ogg_static.lib - static build of libOGG (from folder win32\Static_Release where you unzipped libogg) sdl.lib - static build of SDL (from folder lib where you unzipped SDL) vorbisfile_static.lib - static build of vorbisfile (from folder win32\VorbisFile_Static_Release where you unzipped libvorbis) vorbis_static.lib - static build of libvorbis (from folder win32\Vorbis_Static_Release where you unzipped libvorbis) zlib.lib - static build of zlib (from folder projects\visualc6\Win32_LIB_Release where you unzipped zlib)
Copy those inside VC's lib folder (e.g. C:\Program Files\Microsoft Visual Studio 8\VC\lib)
Copy those inside VC's include folder (e.g. C:\Program Files\Microsoft Visual Studio 8\VC\include)
nasmw.exe - from the NASM zip
Copy this as nasmw.exe AND as nasm.exe inside VC's bin folder (e.g. C:\Program Files\Microsoft Visual Studio 8\VC\bin)
Second method: Tell VC++ where to look
The second method is to tell VC++ where to look for the required libraries and header files
Go to Tools->Options->Projects and solutions->VC++ directories.
In the executable files section, make sure that the path to nasm is included and that nasmw.exe in that folder has been copied to nasm.exe. Failure to do that will give you an error in VS (a custom building step has returned an error)
In the include files section, make sure that the include folders for libogg, libvorbis, libmad, zlib, mpeg2dec and SDL are in the list. If you need FLAC, include the FLAC include folder in the list too
In the library files section, make sure that the static libraries for vorbis, vorbisfile, libogg, zlib, mpeg2dec, libmad and SDL are included. If you're building 0.8.0 final or earlier, include the release folder of zlibdll too (in the zlib source folder, contrib\vstudio\vc8\x86\zlibdllrelease). If you need FLAC, include the FLAC libraries folder too
Finally, if you need to compile ScummVM with FLAC support, go to Configuration Properties->C/C++->Preprocessor and add "USE_FLAC" in the Preprocessor Definitions field. Also, go to linker->input and add "libflac_static.lib" in the Additional Dependencies field.
Enabling the console
Since information on doing this is not that easy to find, here's how to enable the console in the resulting ScummVM executable. The default project subsystem is "Windows" instead of "Console", which means that the console will not be shown.
To show the console, right-click on the "scummvm" project and go to Properties. There, go to Configuration Properties->Linker->System and change the "Subsystem" property from "Windows (/SUBSYSTEM:WINDOWS)" to "Console (/SUBSYSTEM:CONSOLE)". Then, go to Linker->Advanced and set the entry point to be "WinMainCRTStartup" (special thanks to Jubanka/knakos for his tip on entrypoint).
Ready to compile ScummVM
If you got all the libraries compiled, you're ready to compile the latest version of ScummVM!
Open the solution file in dists\msvc9 (msvc8 for VS2005 and msvc7 for VS2003), select the "Release" configuration from the configuration manager pulldown menu and then go to Build->Build solution, or just press Control-F7 to compile it.
The ScummVM executable should be in the folder dists\msvc9\scummvm_Release as "scummvm.exe".
You'll need to copy sdl.dll from the SDL runtime archive (or the latest devel archive) in the directory where scummvm.exe is