Mercurial > sdl-ios-xcode
annotate test/acinclude.m4 @ 1192:54aa9aa32327
To: sdl@libsdl.org
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
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Mon, 28 Nov 2005 13:58:26 +0000 |
parents | a5defa3b93e1 |
children | d94b080ff6ce |
rev | line source |
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0 | 1 # Configure paths for SDL |
2 # Sam Lantinga 9/21/99 | |
3 # stolen from Manish Singh | |
4 # stolen back from Frank Belew | |
5 # stolen from Manish Singh | |
6 # Shamelessly stolen from Owen Taylor | |
7 | |
8 dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]]) | |
9 dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS | |
10 dnl | |
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11 AC_DEFUN([AM_PATH_SDL], |
0 | 12 [dnl |
13 dnl Get the cflags and libraries from the sdl-config script | |
14 dnl | |
15 AC_ARG_WITH(sdl-prefix,[ --with-sdl-prefix=PFX Prefix where SDL is installed (optional)], | |
16 sdl_prefix="$withval", sdl_prefix="") | |
17 AC_ARG_WITH(sdl-exec-prefix,[ --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)], | |
18 sdl_exec_prefix="$withval", sdl_exec_prefix="") | |
19 AC_ARG_ENABLE(sdltest, [ --disable-sdltest Do not try to compile and run a test SDL program], | |
20 , enable_sdltest=yes) | |
21 | |
22 if test x$sdl_exec_prefix != x ; then | |
23 sdl_args="$sdl_args --exec-prefix=$sdl_exec_prefix" | |
24 if test x${SDL_CONFIG+set} != xset ; then | |
25 SDL_CONFIG=$sdl_exec_prefix/bin/sdl-config | |
26 fi | |
27 fi | |
28 if test x$sdl_prefix != x ; then | |
29 sdl_args="$sdl_args --prefix=$sdl_prefix" | |
30 if test x${SDL_CONFIG+set} != xset ; then | |
31 SDL_CONFIG=$sdl_prefix/bin/sdl-config | |
32 fi | |
33 fi | |
34 | |
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35 AC_REQUIRE([AC_CANONICAL_TARGET]) |
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36 PATH="$prefix/bin:$prefix/usr/bin:$PATH" |
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37 AC_PATH_PROG(SDL_CONFIG, sdl-config, no, [$PATH]) |
0 | 38 min_sdl_version=ifelse([$1], ,0.11.0,$1) |
39 AC_MSG_CHECKING(for SDL - version >= $min_sdl_version) | |
40 no_sdl="" | |
41 if test "$SDL_CONFIG" = "no" ; then | |
42 no_sdl=yes | |
43 else | |
44 SDL_CFLAGS=`$SDL_CONFIG $sdlconf_args --cflags` | |
45 SDL_LIBS=`$SDL_CONFIG $sdlconf_args --libs` | |
46 | |
47 sdl_major_version=`$SDL_CONFIG $sdl_args --version | \ | |
48 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'` | |
49 sdl_minor_version=`$SDL_CONFIG $sdl_args --version | \ | |
50 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'` | |
51 sdl_micro_version=`$SDL_CONFIG $sdl_config_args --version | \ | |
52 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'` | |
53 if test "x$enable_sdltest" = "xyes" ; then | |
54 ac_save_CFLAGS="$CFLAGS" | |
55 ac_save_LIBS="$LIBS" | |
56 CFLAGS="$CFLAGS $SDL_CFLAGS" | |
57 LIBS="$LIBS $SDL_LIBS" | |
58 dnl | |
59 dnl Now check if the installed SDL is sufficiently new. (Also sanity | |
60 dnl checks the results of sdl-config to some extent | |
61 dnl | |
62 rm -f conf.sdltest | |
63 AC_TRY_RUN([ | |
64 #include <stdio.h> | |
65 #include <stdlib.h> | |
66 #include <string.h> | |
67 #include "SDL.h" | |
68 | |
69 char* | |
70 my_strdup (char *str) | |
71 { | |
72 char *new_str; | |
73 | |
74 if (str) | |
75 { | |
76 new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char)); | |
77 strcpy (new_str, str); | |
78 } | |
79 else | |
80 new_str = NULL; | |
81 | |
82 return new_str; | |
83 } | |
84 | |
85 int main (int argc, char *argv[]) | |
86 { | |
87 int major, minor, micro; | |
88 char *tmp_version; | |
89 | |
90 /* This hangs on some systems (?) | |
91 system ("touch conf.sdltest"); | |
92 */ | |
93 { FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); } | |
94 | |
95 /* HP/UX 9 (%@#!) writes to sscanf strings */ | |
96 tmp_version = my_strdup("$min_sdl_version"); | |
97 if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) { | |
98 printf("%s, bad version string\n", "$min_sdl_version"); | |
99 exit(1); | |
100 } | |
101 | |
102 if (($sdl_major_version > major) || | |
103 (($sdl_major_version == major) && ($sdl_minor_version > minor)) || | |
104 (($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro))) | |
105 { | |
106 return 0; | |
107 } | |
108 else | |
109 { | |
110 printf("\n*** 'sdl-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version); | |
111 printf("*** of SDL required is %d.%d.%d. If sdl-config is correct, then it is\n", major, minor, micro); | |
112 printf("*** best to upgrade to the required version.\n"); | |
113 printf("*** If sdl-config was wrong, set the environment variable SDL_CONFIG\n"); | |
114 printf("*** to point to the correct copy of sdl-config, and remove the file\n"); | |
115 printf("*** config.cache before re-running configure\n"); | |
116 return 1; | |
117 } | |
118 } | |
119 | |
120 ],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) | |
121 CFLAGS="$ac_save_CFLAGS" | |
122 LIBS="$ac_save_LIBS" | |
123 fi | |
124 fi | |
125 if test "x$no_sdl" = x ; then | |
126 AC_MSG_RESULT(yes) | |
127 ifelse([$2], , :, [$2]) | |
128 else | |
129 AC_MSG_RESULT(no) | |
130 if test "$SDL_CONFIG" = "no" ; then | |
131 echo "*** The sdl-config script installed by SDL could not be found" | |
132 echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in" | |
133 echo "*** your path, or set the SDL_CONFIG environment variable to the" | |
134 echo "*** full path to sdl-config." | |
135 else | |
136 if test -f conf.sdltest ; then | |
137 : | |
138 else | |
139 echo "*** Could not run SDL test program, checking why..." | |
140 CFLAGS="$CFLAGS $SDL_CFLAGS" | |
141 LIBS="$LIBS $SDL_LIBS" | |
142 AC_TRY_LINK([ | |
143 #include <stdio.h> | |
144 #include "SDL.h" | |
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145 |
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146 int main(int argc, char *argv[]) |
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147 { return 0; } |
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148 #undef main |
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149 #define main K_and_R_C_main |
0 | 150 ], [ return 0; ], |
151 [ echo "*** The test program compiled, but did not run. This usually means" | |
152 echo "*** that the run-time linker is not finding SDL or finding the wrong" | |
153 echo "*** version of SDL. If it is not finding SDL, you'll need to set your" | |
154 echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point" | |
155 echo "*** to the installed location Also, make sure you have run ldconfig if that" | |
156 echo "*** is required on your system" | |
157 echo "***" | |
158 echo "*** If you have an old version installed, it is best to remove it, although" | |
159 echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"], | |
160 [ echo "*** The test program failed to compile or link. See the file config.log for the" | |
161 echo "*** exact error that occured. This usually means SDL was incorrectly installed" | |
162 echo "*** or that you have moved SDL since it was installed. In the latter case, you" | |
163 echo "*** may want to edit the sdl-config script: $SDL_CONFIG" ]) | |
164 CFLAGS="$ac_save_CFLAGS" | |
165 LIBS="$ac_save_LIBS" | |
166 fi | |
167 fi | |
168 SDL_CFLAGS="" | |
169 SDL_LIBS="" | |
170 ifelse([$3], , :, [$3]) | |
171 fi | |
172 AC_SUBST(SDL_CFLAGS) | |
173 AC_SUBST(SDL_LIBS) | |
174 rm -f conf.sdltest | |
175 ]) |