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authormarha <marha@users.sourceforge.net>2009-10-08 13:15:52 +0000
committermarha <marha@users.sourceforge.net>2009-10-08 13:15:52 +0000
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+File: docs/README.WIN32
+
+Last updated: Apr 25, 2007 - Karl Schultz - kschultz@users.sourceforge.net
+
+Quick Start
+----- -----
+
+Unzip the MesaLib, MesaGLUT, and MesaDemos ZIP files into the same
+directory. The libs and demos build separately, so if you do not care
+about the demos or GLUT, you only need to unzip MesaLib. If you unzip
+more than one ZIP file, they all need to be unzipped into the same
+directory. Don't worry, you will not overwrite anything.
+
+The Windows build system uses Microsoft Visual Studio. Project files
+for a specific version of Visual Studio are in their own directory in
+the top-level "windows" directory. For example, Visual Studio 8 files
+are in windows/VC8.
+
+Support has been dropped for versions of Visual Studio prior to 8. The
+main reason is because Microsoft now provides a free compiler and
+developer environment. Visual Studio Express can be found at
+
+http://msdn.microsoft.com/vstudio/express/visualc/default.aspx
+
+You'll also need the Platform SDK. Instructions for obtaining and
+using the SDK with Visual Studio Express can be found at
+
+http://msdn.microsoft.com/vstudio/express/visualc/usingpsdk/
+
+If you are stuck using VC6 or VC7, you may start with these project
+files, but you may need to modify them to reflect changes in the
+Mesa source code tree. If you sucessfully update the project files,
+please submit them to the author of this document so that they may
+be included in the next distribution.
+
+The project files to build the core Mesa library, Windows Mesa
+drivers, OSMesa, and GLU are in the mesa directory. The project files
+to build GLUT and some demo programs are in the progs directory.
+
+Makefiles are no longer shipped or supported, but can be generated
+from the projects using Visual Studio.
+
+
+Windows Drivers
+------- -------
+
+At this time, only the GDI driver is known to work. Most of the demos
+in progs/demos should work with this driver.
+
+Source code also exists in the tree for other drivers in
+src/mesa/drivers/windows, but the status of this code is unknown.
+
+The GDI driver operates basically by writing pixel spans into a DIB
+section and then blitting the DIB to the window. The driver was
+recently cleaned up and rewitten and so may have bugs or may be
+missing some functionality. The older versions of the CVS source may
+be useful in figuring out any problems, or report them to me.
+
+To build Mesa with the GDI driver, build the mesa, gdi, and glu
+projects in the Visual Studio workspace found at
+
+ windows/VC8/mesa/mesa.sln
+
+The osmesa DLL can also be built with the osmesa project.
+
+The build system creates a lib top-level directory and copies
+resulting LIB and DLL files to this lib directory. The files are:
+
+ OPENGL32.LIB, GLU32.LIB, OSMESA32.LIB
+ OPENGL32.DLL, GLU32.DLL, OSMESA32.DLL
+
+If the MesaDemos ZIP file was extracted, the DLL files are also copied
+to the demos directory. This facilitates running the demos as described
+below.
+
+
+GLUT and Demos
+---- --- -----
+
+A Visual Studio workspace can be found at
+
+ windows/VC8/progs/progs.sln
+
+It can be used to build GLUT and a few demos. The GLUT lib and DLL
+are copied to the top-level lib directory, along with the Mesa libs.
+
+The demo build system expects to find the LIB files in the top level
+lib directory, so you must build the Mesa libs first. The demo
+executables are placed in the demos directory, because some of them
+rely on data files found there. Also, the Mesa lib DLL's were copied
+there by the Mesa lib build process. Therefore, you should be able to
+simply run the demo executables from the demo directory.
+
+If you want to run the demos from the Visual Studio, you may have to
+change the startup directory and explicitly state where the executables are.
+
+You may also build all the demo programs by using a makefile. Go to
+the progs/demos directory and make sure you have executed VCVARS32.BAT
+or whatever setup script is appropriate for your compiler. Then,
+
+ nmake -f Makefile.win
+
+should build all the demos.
+
+
+Build System Notes
+----- ------ -----
+
+VC6 (not actively supported)
+---
+
+Visual Studio 6 does not recognize files with the .cc extension as C++
+language files, without a lot of unnatural tweaking. So, the VC6
+build process uses custom build steps to compile these files in the
+GLU library.
+
+Two additional configurations are provided, Debug x86 and Release x86
+that activate the shader code compilation by defining SLANG_86. It is
+unknown if and how this works.
+
+VC7 (not actively supported)
+---
+
+The above-mentioned .cc problem does not exist in this version.
+
+VC8
+---
+
+No notes.
+
+
+General
+-------
+
+After building, you can copy the above DLL files to a place in your
+PATH such as $SystemRoot/SYSTEM32. If you don't like putting things
+in a system directory, place them in the same directory as the
+executable(s). Be careful about accidentially overwriting files of
+the same name in the SYSTEM32 directory.
+
+The DLL files are built so that the external entry points use the
+stdcall calling convention.
+
+Static LIB files are not built. The LIB files that are built with are
+the linker import files associated with the DLL files.
+
+The si-glu sources are used to build the GLU libs. This was done
+mainly to get the better tessellator code.
+
+To build "mangled" Mesa, add the preprocessor define USE_MGL_NAMESPACE
+to the project settings. You will also need to edit src/mesa.def to
+change all the gl* symbols to mgl*. Because this is easy to do with a
+global replace operation in a text editor, no additional mangled
+version of mesa.def is maintained or shipped.
+
+If you have a Windows-related build problem or question, it is
+probably better to direct it to me (kschultz@users.sourceforge.net),
+rather than directly to the other Mesa developers. I will help you as
+much as I can. I also monitor the Mesa mailing lists and will answer
+questions in this area there as well.
+
+
+Karl Schultz