Mercurial > sdl-ios-xcode
annotate README.MacOS @ 1157:baf35853ad54
Date: Mon, 10 Oct 2005 13:09:32 +0300
From: Tommi Kyntola <tommi.kyntola@ray.fi>
To: sdl@libsdl.org
Subject: [SDL] [RFC] get_ticks broken on linux
It uses gettimeofday to calculate the timedifference.
Gettimeofday returns current time which is seldom monotonous.
This breaks SDL timer subsystem. (time callbacks and all that
get borked when the time difference ms is suddenly ~ 2^32)
I posted a message about this earlier but got no response.
Some thoughts on this matter would be appreciated.
(Or even an explanation for the lack of interest.)
A patch below would use the posix timers that have been around
since posix 93 and do provide a good source of monotonous time
on linux boxes (and on few others too).
The following patch is also availabe at:
http://www.hut.fi/u/tkyntola/SDL-1.2.9-clockfix.patch
It's against 1.2.9, but I can easily rediffit against
the cvs branch is needed.
cheers,
Tommi Kyntola tommi.kyntola@ray.fi
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Tue, 11 Oct 2005 18:16:12 +0000 |
| parents | 37e3ca9254c7 |
| children |
| rev | line source |
|---|---|
| 0 | 1 |
| 2 ============================================================================== | |
| 3 Using the Simple DirectMedia Layer with MacOS 7,8,9 on PPC | |
| 4 ============================================================================== | |
| 5 | |
| 6 These instructions are for people using the Apple MPW environment: | |
| 7 http://developer.apple.com/tools/mpw-tools/ | |
| 8 | |
| 9 CodeWarrior projects are available in the CWprojects directory. | |
| 10 | |
| 11 ============================================================================== | |
| 12 I. Building the Simple DirectMedia Layer libraries: | |
| 13 (This step isn't necessary if you have the SDL binary distribution) | |
| 14 | |
| 15 First, unpack the MPWmake.sea.hqx archive and move SDL.make into the | |
| 16 SDL directory. | |
| 17 | |
| 18 Start MPW | |
| 19 | |
| 20 Set the current directory within MPW to the SDL toplevel directory. | |
| 21 | |
| 22 Build "SDL" (Type Command-B and enter "SDL" in the dialog) | |
| 23 | |
| 24 If everything compiles successfully, you now have the PPC libraries | |
| 25 "SDL" and "SDLmain.o" in the 'lib' subdirectory. | |
| 26 | |
| 27 ============================================================================== | |
| 28 II. Building the Simple DirectMedia Layer test programs: | |
| 29 | |
| 30 First, unpack the MPWmake.sea.hqx archive, move the new rsrc directory to | |
| 31 the main SDL directory, and move the makefiles in the new test subdirectory | |
| 32 to the SDL 'test' subdirectory. | |
| 33 | |
| 34 Start MPW | |
| 35 | |
| 36 Set the current directory within MPW to the SDL 'test' subdirectory. | |
| 37 | |
| 38 Build the programs that have an associated MPW makefile (file ending | |
| 39 with .make), including "testwin", "testalpha", and "graywin". | |
| 40 | |
| 41 Copy the SDL library file into the test directory, and run! | |
| 42 | |
| 43 ============================================================================== | |
| 44 III. Building the Simple DirectMedia Layer demo programs: | |
| 45 | |
| 46 Copy one of the test program Makefiles to the demo directory | |
| 47 and modify it to match the sources in the demo. | |
| 48 | |
| 49 ============================================================================== | |
| 50 IV. Enjoy! :) | |
| 51 | |
| 52 If you have a project you'd like me to know about, or want to ask questions, | |
| 53 go ahead and join the SDL developer's mailing list by sending e-mail to: | |
| 54 | |
|
172
37e3ca9254c7
Date: Sat, 8 Sep 2001 04:42:23 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
55 sdl-request@libsdl.org |
| 0 | 56 |
|
172
37e3ca9254c7
Date: Sat, 8 Sep 2001 04:42:23 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
57 and put "subscribe" into the subject of the message. Or alternatively you |
|
37e3ca9254c7
Date: Sat, 8 Sep 2001 04:42:23 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
58 can use the web interface: |
|
37e3ca9254c7
Date: Sat, 8 Sep 2001 04:42:23 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
59 |
|
37e3ca9254c7
Date: Sat, 8 Sep 2001 04:42:23 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
60 http://www.libsdl.org/mailman/listinfo/sdl |
| 0 | 61 |
| 62 ============================================================================== | |
| 63 |