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Subject: Patch for RISC OS cursor palette handling in SDL
Date: Mon, 07 Nov 2005 09:14:15 -0800

The mouse cursor palette was not correctly
restored on RISC OS if the system was using
anything but the default mouse colours.

Additionally I've modifed the order the wait
for vsync is called as it should be after the
screen bank switching.

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From: Christian Walther <cwalther@gmx.ch>
Date: Wed, 21 Dec 2005 13:39:39 +0100
Subject: [SDL] Another mouse bug patch for Mac OS X

Oh my, yet another change in the quartz mouse handling code! :)

The attached patch fixes the following bug:

Calling SDL_WarpMouse() while the cursor is invisible and grabbed should
only update SDL's internal mouse location, not try to warp the system
cursor (which is not at that location, but fixed in the middle of the
window). Otherwise, the next mouse motion event is wrong.

Please apply.

Thanks

  Christian

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From: "alan buckley"
Subject: Patch to fix audio locking on RISC OS

When threads were not disabled on a RISC OS build
the audio mixer mutex was not created.

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 didn't break it everywhere else...grumble...)

--ryan.

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From: Alberto Mardegan <mardy@users.sourceforge.net>
To: sdl@libsdl.org
Subject: [SDL] [PATCH] Touchscreen support to fbcon via tslib


Hi all!

  I'm new to this list, I just subscribed. I've attached to this e-mail
a patch I've written in order to add Touchscreen support to SDL's fbcon
module via the tslib library.
Since it introduces a new dependency, I've also edited the the
configure.in file and added it as a compile-time option.

This patch is especially useful for handhelds (I've tested it in my
Zaurus).
Please consider applying it. :-)


--
Saluti,
    Mardy
http://interlingua.altervista.org

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From: Olivier Boudeville <olivier.boudeville@online.fr>
To: "A list for developers using the SDL library. \(includes SDL-announce\)" <sdl@libsdl.org>
Subject: [SDL] NetBSD build patch


Hi everybody,

apparently the SDL-1.2.9 source archive could not compile "as is" on
NetBSD 2.0_STABLE due to a pthread detection issue in the configure script.

I attached a small patch that can be applied to configure.in so that SDL
can be directly (i.e. without the NetBSD package manager) configured and
built successfully on NetBSD (at least on the one I tried !).

Hope this helps,

Olivier.

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To: sdl@libsdl.org
Date: Sun, 11 Dec 2005 22:57:37 -0500
Subject: [SDL] exec stack in libsdl update

i posted back in September a patch to remove executable stacks:
http://www.devolution.com/pipermail/sdl/2005-September/070626.html

later in November, a similar patch was merged it seems:
http://www.libsdl.org/cgi/cvsweb.cgi/SDL12/src/hermes/mmx_main.asm

however, this lacks the additional output format checks that i posted in my
patch ... this isnt a problem if the hermes asm code is only ever used to
produce ELF objects, but if this is not true, then the additional checks in
my original patch will need to be merged
-mike

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http://bugs.gentoo.org/show_bug.cgi?id=87809

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 explicitly calling SDL_GL_LoadLibrary() first.

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From: Jonathan Atkins <jcatki@jcatki.no-ip.org>
Subject: SDL patch: DGA key events

I kept seeing DGA die on me whenever I press a key.
I tracked it down and it seems that the new indirect X via pointers
system messed it up.  It needed to have the pX* pointers well defined to
call, in particular, pXNextEvent.  Also, the X11_TranslateKey function
prototype was changed, but not updated in the dga driver.  perhaps other
files are also affected.

Not sure what releases may suffer from this too.

thanks!
	-Jon Atkins

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From: Christian Walther <cwalther@gmx.ch>
Date: Fri, 18 Nov 2005 23:39:02 +0100
Subject: [SDL] Mouse position bugs on Mac OS X

The attached patch fixes a few bugs in SDL related to the mouse position
in windowed mode on Mac OS X, reproduced using the attached minimal test
program - at least here on 10.3.9, with SDL CVS from today. Could anyone
test whether the bugs exist and are fixed by the patch on 10.2 and 10.4?

1. When using OpenGL, the vertical mouse positions obtained through
events or SDL_GetMouseState() are off by one.

2. When using OpenGL, SDL_WarpMouse() inverts the y coordinate.

3. Clicks on the topmost pixel row of the window are not recognized.

1 and 2 do not occur in non-OpenGL mode, while 3 does. All three only
occur in windowed mode, not in fullscreen.

The cause for 1 and 3 is that in Cocoa, "the location of the mouse"
seems to be defined as "the location of the top left corner of the mouse
pointer's hot pixel" (this is not documented, it's just what I found out
here), which together with the fact that Cocoa's usual y coordinates
start at the bottom and increase upwards means that the y coordinate of
the mouse runs from 1 to h, not from 0 to h-1, in a window of height h.

If it does work on 10.2 and 10.4 (I'll try to test it as soon as I can,
but at the moment all I have at hand is 10.3.9), can this be applied to
the CVS?

  -Christian



To: sdl@libsdl.org
From: Christian Walther <cwalther@gmx.ch>
Date: Mon, 28 Nov 2005 10:41:51 +0100
Subject: [SDL] Re: Mouse position bugs on Mac OS X

I wrote:
> I'll try to test it as soon as I can, but at the moment all I have at hand is 10.3.9

So, here are the results of my tests (with patched and unpatched
frameworks compiled with Xcode 1.5 (gcc 3.3) on 10.3.9):

On 10.1.5, my test program doesn't run because of "Undefined symbols:
SDL undefined reference to _CGMainDisplayID expected to be defined in
Carbon". I guess not supporting 10.1 was a deliberate decision then and
that's OK with me.

On 10.2.8, 10.3.9, and 10.4.0, the bugs exist as described in my
original post and are fixed by my patch. That is, there is no difference
between pre/post 10.3 and the patched version works correctly in all
combinations of GL/non-GL and windowed/fullscreen.

I therefore recommend the patch for inclusion.

  -Christian

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 a more official way to do OpenGL, explicitly check for glX on Mac OS X, and
 use SDL_LoadObject for platforms that have glX but don't have dlopen().

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This was mostly, if not entirely, written by "Doodle" and "Caetano":
    doodle@scenergy.dfmk.hu
    daniel@caetano.eng.br

--ryan.

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From: Staffan Ulfberg <staffan@ulfberg.se>
Date: 19 Nov 2005 01:00:48 +0100
Subject: [SDL] New driver for OpenBSD/wscons

Hello,

I've written an SDL driver for OpenBSD/wscons (console mode, somewhat
resembling the functionality of the svga driver for Linux).  I use it
for playing MAME on my Sharp Zaurus.  The alternative is to play under
X, which is slower.

I asked how to submit the driver a few days ago, and posted a link to
the patch in a follow-up, so maybe it was missed?

Anyway, the patch is on the web at:

http://multivac.fatburen.org/SDL-wscons.patch

Comments?

Staffan

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 only exists at /usr/sys/arch/i386/include/joystick.h, for example.

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From: Mattias Karlsson <betasoft@acc.umu.se>
To: sdl@libsdl.org
Subject: [SDL] [PATCH] Fix (tiny) build problems on solaris (fwd)

This small patch fixes building audio on solaris 2.9 with gcc 4.0

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   http://www.devolution.com/pipermail/sdl/2005-October/070998.html

--ryan.

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 SDL_GL_LoadLibrary().

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Driver can now open whatever library is specified in SDL_GL_LoadLibrary()
 call (previously, it ignored this parameter), and uses the default system
 library when NULL is specified.

Also, library is loaded once in SDL_GL_LoadLibrary() and not every call to
 SDL_GL_GetProcAddress().

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To: sdl@libsdl.org
Date: Fri, 30 Sep 2005 02:24:50 -0600
Subject: [SDL] WinCE timers, continued

Here's a strange timer for Windows CE that doesn't ignore time across
suspends.  It uses GetSystemTime to keep the time continuous, and GetTicks to
get finer-grained readings than 1 second.  It detects the difference between
the GetTicks time and GetSystemTime time on power-on to keep the error within
one second max.

It's not a patch on the current win32 timer code -- took one look at that and
figured it had more than enough #ifdefs already.  It's windows-ce specific.

Another thing I've noticed is that the Windows CE 4.0 and newer API has
functions warn processes about suspends.  This is something SDL REALLY needs
for audio in particular, because turning it off while it's playing causes
anything that uses audio to hardlock the system on power-on.  Unfortunately I
don't have 4.0 to play with.  :(

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  http://lists.arabeyes.org/archives/developer/2004/June/msg00160.html

--ryan.

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 Quartz target...fixed this to match the documented behaviour.

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From: Mark Schreiber <mark7@alumni.cmu.edu>
To: ryan@clutteredmind.org
Subject: [PATCH]SDL mprotect() crash fix

(I'm going to throw this patch your way at the suggestion of #SDL --
for some reason, I had some difficulty sending it to the main list
last time, and I go bonkers subscribing to send each email or
patch...)

Currently, when I run SDL applications as non-root using
SDL_VIDEODRIVER=dga, the fbdev fallback mprotect()s read/write the
proper size of mmapped /dev/fb0 (7.5MB), but on framebuffer release
mprotect()s read-only the range by the entire size of my video memory
(128MB), which causes a segfault:

#0  0x002a9a27 in ?? () from /lib/libc.so.6
#1  0x04a63eb6 in SDL_XDGAUnmapFramebuffer (screen=3D0) at XF86DGA2.c:978
#2  0x04a63efc in SDL_XDGACloseFramebuffer (dpy=3D0x9d3f008, screen=3D0)
    at XF86DGA2.c:268
#3  0x04a68b57 in DGA_Available () at SDL_dgavideo.c:98
#4  0x04a53677 in SDL_VideoInit (driver_name=3D0xbfb0bfc7 "dga", flags=3D0)
    at SDL_video.c:180
#5  0x04a2613f in SDL_InitSubSystem (flags=3D32) at SDL.c:74
#6  0x04a2617c in SDL_Init (flags=3D32) at SDL.c:166
#7  0x08049722 in main (argc=3D1, argv=3D0x0) at testwin.c:32

This is SDL 1.2.8 on Fedora Core 4, radeon driver for a Radeon 9250,
xorg-x11-6.8.2-37.

I've attached a one-line patch against SDL CVS that updates the size
of the framebuffer at framebuffer map time so that the mprotect() on
unmap will be the same size.  I'm not sure if this is the best
approach (i.e. one might want to retain the original value), but it
does make my SDL applications work without segfaulting.

-- Best of luck, Mark Schreiber

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 instead replace it with the string "(null)", like glibc's printf() would do.

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