README.Watcom
author Sam Lantinga <slouken@libsdl.org>
Mon, 26 Jun 2006 01:35:02 +0000
branchSDL-1.3
changeset 1710 db78e088b6ce
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child 3568 8c72321542f6
permissions -rw-r--r--
------- Comment #5 From Marc Peter 2006-06-25 18:03 [reply] ------- Created an attachment (id=142) [edit] updated makefiles for 1.2.11 release The new Watcom-Win32.zip - includes the new testcursor test, and - doesn't link to dxguid.lib anymore (by defining INITGUID for SDL_dx5events.c), to fix issue with stack calling convention (-6s can now be used instead of -6r in CFLAGS). ------- Comment #6 From Marc Peter 2006-06-25 18:12 [reply] ------- Created an attachment (id=143) [edit] updated README.Watcom for 1.2.11 - lists new testcursor test - mentions possibility to build with -6s (stack calling convention) instead of -6r (register calling convention)
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Using SDL under Windows with the OpenWatcom compiler
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====================================================
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Prerequisites
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-------------
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I have done the port under Windows XP Home with SP2 installed. Windows
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2000 should also be working. I'm not so sure about ancient Windows NT,
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since only DirectX 3 is available there. Building should be possible,
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but running the compiled applications will probalbly fail with
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SDL_VIDEODRIVER=directx. The windib driver should work, though.
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To compile and use the SDL with Open Watcom you will need the following:
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- Open Watcom compiler. I used version 1.5. The environment variables
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  PATH, WATCOM and INCLUDE need to be set appropriately - please consult
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  the OpenWatcom documentation and instructions given during the
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  installation of the compiler.
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  My setup looks like this in owvars.bat:
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    set WATCOM=C:\watcom
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    set INCLUDE=%WATCOM%\h;%WATCOM%\h\nt
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    set PATH=%PATH%;%WATCOM%\binnt;%WATCOM%\binw
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- A fairly recent DirectX SDK. The original unmodified DX8 SDK works, as
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  well as the minimal DirectX 7 SDK from the Allegro download site
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  (<http://alleg.sourceforge.net/files/dx70_min.zip>).
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- The SDL sources from Subversion
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- The file Watcom-Win32.zip (now available in Subversion)
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Building the Library
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--------------------
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1) In the SDL base directory extract the archive Watcom-Win32.zip. This
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   creates a subdirectory named 'watcom'.
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2) The makefile expects the environment variable DXDIR to be set to the
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   base directory of a DirectX SDK. I have tried a stock DX8 SDK from
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   Microsoft as well as the minimal DirectX 7 SDK from the Allegro
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   download site.
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   You can also edit the makefile directly and hard code your path to
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   the SDK on your system.
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   I have this in my setup:
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     set DXDIR=D:\devel\DX8_SDK
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3) Enter the watcom directory and run
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     wmake sdl
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4) All tests from the test directory are working and can be built by
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   running
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     wmake tests
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Notes:
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 The makefile offers some options to tweak the way the library is built.
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 You have at your disposal the option to build a static (default)
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 library, or a DLL (with tgt=dll). You can also choose whether to build
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 a Release (default) or a Debug version (with build=debug) of the tests
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 and library. Please consult the usage comment at the top of the
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 makefile for usage instructions.
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 If you specify a test target (i.e. 'wmake tests' for all tests, or
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 selected targets like 'wmake testgl testvidinfo testoverlay2'), the
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 tests are always freshly compiled and linked. This is done to
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 minimise hassle when switching between library versions (static vs.
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 DLL), because they require subtly different options.
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 Also, the test executables are put directly into the test directory,
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 so they can find their data files. The clean target of the makefile
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 removes the test executables and the SDL.dll file from the test
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 directory.
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 To use the library in your own projects with Open Watcom, you can use
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 the way the tests are built as base of your own build environment.
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 The library can also be built with the stack calling convention of the
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 compiler (-6s instead of -6r).
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Test applications
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-----------------
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I've tried to make all tests work. The following table gives an overview
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of the current status.
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 Testname        Status
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~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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checkkeys       +
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graywin         +
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loopwave        +
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testalpha       +
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testbitmap      +
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testdyngl       +
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testerror       +
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testfile        +
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testgamma       +
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testgl          +
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testhread       +
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testiconv       - (all failed)
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testkeys        +
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testlock        +
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testoverlay     + (needs 'set SDL_VIDEODRIVER=directx')
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testoverlay2    + (needs 'set SDL_VIDEODRIVER=directx')
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testpalette     +
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testplatform    +
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testsem         +
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testsprite      +
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testtimer       +
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testver         +
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testvidinfo     +
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testwin         ? (fading doesn't seem right)
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testwm          +
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torturethread   +
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testcdrom       +
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testjoystick    not tested
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threadwin       +
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testcursor      +
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TODO
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----
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There is room for further improvement:
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- Test joystick functionality.
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- Investigate fading issue in 'testwin' test.
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- Fix the UTF-8 support.
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- Adapt the makefile/object file list to support more target systems
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- Use "#pragma aux" syntax for the CPU info functions.
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Questions and Comments
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----------------------
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Please direct any questions or comments to me:  <mailto:macpete@gmx.de>
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   Happy Coding!
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   Marc Peter