README.Watcom
author Ryan C. Gordon <icculus@icculus.org>
Fri, 01 Sep 2006 06:55:41 +0000
changeset 2007 cff63f857ff3
parent 1888 488eba319a25
child 3568 8c72321542f6
permissions -rw-r--r--
QNX6 support for int32/float32 (isn't this just ALSA?!)
slouken@1773
     1
slouken@1773
     2
Using SDL under Windows with the OpenWatcom compiler
slouken@1773
     3
====================================================
slouken@1773
     4
slouken@1773
     5
Prerequisites
slouken@1773
     6
-------------
slouken@1773
     7
slouken@1773
     8
I have done the port under Windows XP Home with SP2 installed. Windows
slouken@1773
     9
2000 should also be working. I'm not so sure about ancient Windows NT,
slouken@1773
    10
since only DirectX 3 is available there. Building should be possible,
slouken@1773
    11
but running the compiled applications will probalbly fail with
slouken@1773
    12
SDL_VIDEODRIVER=directx. The windib driver should work, though.
slouken@1773
    13
slouken@1773
    14
To compile and use the SDL with Open Watcom you will need the following:
slouken@1773
    15
- Open Watcom compiler. I used version 1.5. The environment variables
slouken@1773
    16
  PATH, WATCOM and INCLUDE need to be set appropriately - please consult
slouken@1773
    17
  the OpenWatcom documentation and instructions given during the
slouken@1773
    18
  installation of the compiler.
slouken@1773
    19
  My setup looks like this in owvars.bat:
slouken@1773
    20
    set WATCOM=C:\watcom
slouken@1773
    21
    set INCLUDE=%WATCOM%\h;%WATCOM%\h\nt
slouken@1773
    22
    set PATH=%PATH%;%WATCOM%\binnt;%WATCOM%\binw
slouken@1773
    23
- A fairly recent DirectX SDK. The original unmodified DX8 SDK works, as
slouken@1773
    24
  well as the minimal DirectX 7 SDK from the Allegro download site
slouken@1773
    25
  (<http://alleg.sourceforge.net/files/dx70_min.zip>).
slouken@1773
    26
- The SDL sources from Subversion
slouken@1773
    27
- The file Watcom-Win32.zip (now available in Subversion)
slouken@1773
    28
slouken@1773
    29
slouken@1773
    30
Building the Library
slouken@1773
    31
--------------------
slouken@1773
    32
slouken@1773
    33
1) In the SDL base directory extract the archive Watcom-Win32.zip. This
slouken@1773
    34
   creates a subdirectory named 'watcom'.
slouken@1773
    35
2) The makefile expects the environment variable DXDIR to be set to the
slouken@1773
    36
   base directory of a DirectX SDK. I have tried a stock DX8 SDK from
slouken@1773
    37
   Microsoft as well as the minimal DirectX 7 SDK from the Allegro
slouken@1773
    38
   download site.
slouken@1773
    39
   You can also edit the makefile directly and hard code your path to
slouken@1773
    40
   the SDK on your system.
slouken@1773
    41
   I have this in my setup:
slouken@1773
    42
     set DXDIR=D:\devel\DX8_SDK
slouken@1773
    43
3) Enter the watcom directory and run
slouken@1773
    44
     wmake sdl
slouken@1773
    45
4) All tests from the test directory are working and can be built by
slouken@1773
    46
   running
slouken@1773
    47
     wmake tests
slouken@1773
    48
slouken@1773
    49
Notes:
slouken@1773
    50
slouken@1773
    51
 The makefile offers some options to tweak the way the library is built.
slouken@1773
    52
 You have at your disposal the option to build a static (default)
slouken@1773
    53
 library, or a DLL (with tgt=dll). You can also choose whether to build
slouken@1773
    54
 a Release (default) or a Debug version (with build=debug) of the tests
slouken@1773
    55
 and library. Please consult the usage comment at the top of the
slouken@1773
    56
 makefile for usage instructions.
slouken@1773
    57
slouken@1773
    58
 If you specify a test target (i.e. 'wmake tests' for all tests, or
slouken@1773
    59
 selected targets like 'wmake testgl testvidinfo testoverlay2'), the
slouken@1773
    60
 tests are always freshly compiled and linked. This is done to
slouken@1773
    61
 minimise hassle when switching between library versions (static vs.
slouken@1773
    62
 DLL), because they require subtly different options.
slouken@1773
    63
 Also, the test executables are put directly into the test directory,
slouken@1773
    64
 so they can find their data files. The clean target of the makefile
slouken@1773
    65
 removes the test executables and the SDL.dll file from the test
slouken@1773
    66
 directory.
slouken@1773
    67
slouken@1773
    68
 To use the library in your own projects with Open Watcom, you can use
slouken@1773
    69
 the way the tests are built as base of your own build environment.
slouken@1773
    70
slouken@1888
    71
 The library can also be built with the stack calling convention of the
slouken@1888
    72
 compiler (-6s instead of -6r).
slouken@1888
    73
slouken@1773
    74
slouken@1773
    75
Test applications
slouken@1773
    76
-----------------
slouken@1773
    77
slouken@1773
    78
I've tried to make all tests work. The following table gives an overview
slouken@1773
    79
of the current status.
slouken@1773
    80
slouken@1773
    81
 Testname        Status
slouken@1773
    82
~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
slouken@1773
    83
checkkeys       +
slouken@1773
    84
graywin         +
slouken@1773
    85
loopwave        +
slouken@1773
    86
testalpha       +
slouken@1773
    87
testbitmap      +
slouken@1773
    88
testdyngl       +
slouken@1773
    89
testerror       +
slouken@1773
    90
testfile        +
slouken@1773
    91
testgamma       +
slouken@1773
    92
testgl          +
slouken@1773
    93
testhread       +
slouken@1773
    94
testiconv       - (all failed)
slouken@1773
    95
testkeys        +
slouken@1773
    96
testlock        +
slouken@1773
    97
testoverlay     + (needs 'set SDL_VIDEODRIVER=directx')
slouken@1773
    98
testoverlay2    + (needs 'set SDL_VIDEODRIVER=directx')
slouken@1773
    99
testpalette     +
slouken@1773
   100
testplatform    +
slouken@1773
   101
testsem         +
slouken@1773
   102
testsprite      +
slouken@1773
   103
testtimer       +
slouken@1773
   104
testver         +
slouken@1773
   105
testvidinfo     +
slouken@1888
   106
testwin         ? (fading doesn't seem right)
slouken@1773
   107
testwm          +
slouken@1773
   108
torturethread   +
slouken@1773
   109
testcdrom       +
slouken@1773
   110
testjoystick    not tested
slouken@1773
   111
threadwin       +
slouken@1888
   112
testcursor      +
slouken@1773
   113
slouken@1773
   114
slouken@1773
   115
TODO
slouken@1773
   116
----
slouken@1773
   117
slouken@1773
   118
There is room for further improvement:
slouken@1773
   119
- Test joystick functionality.
slouken@1773
   120
- Investigate fading issue in 'testwin' test.
slouken@1773
   121
- Fix the UTF-8 support.
slouken@1773
   122
- Adapt the makefile/object file list to support more target systems
slouken@1773
   123
- Use "#pragma aux" syntax for the CPU info functions.
slouken@1773
   124
slouken@1773
   125
slouken@1773
   126
Questions and Comments
slouken@1773
   127
----------------------
slouken@1773
   128
slouken@1773
   129
Please direct any questions or comments to me:  <mailto:macpete@gmx.de>
slouken@1773
   130
slouken@1773
   131
   Happy Coding!
slouken@1773
   132
slouken@1773
   133
   Marc Peter