Mercurial > sdl-ios-xcode
annotate sdl.m4 @ 5133:ec13e48ee0d9
Fixed bug #1112 (retina display support)
Vittorio Giovara 2011-02-01 02:21:50 PST
with the attached patch, the opengles context will always use the maximum
screensize available; this is particularly useful for supporting retina display
on latest iphone.
please note: Apple documentation warns that using the "upscaled" gl context
actually uses more memory and bandwitdh, so it might be worth to let the user
decide whether to disable it or not, either with a flag or a sdl function...
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 01 Feb 2011 08:54:34 -0800 |
| parents | e3033ab628a1 |
| children |
| rev | line source |
|---|---|
| 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 | |
| 4441 | 8 # serial 1 |
| 9 | |
| 0 | 10 dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]]) |
| 11 dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS | |
| 12 dnl | |
|
794
a5defa3b93e1
Updated for the latest version of automake
Sam Lantinga <slouken@libsdl.org>
parents:
489
diff
changeset
|
13 AC_DEFUN([AM_PATH_SDL], |
| 0 | 14 [dnl |
| 15 dnl Get the cflags and libraries from the sdl-config script | |
| 16 dnl | |
| 17 AC_ARG_WITH(sdl-prefix,[ --with-sdl-prefix=PFX Prefix where SDL is installed (optional)], | |
| 18 sdl_prefix="$withval", sdl_prefix="") | |
| 19 AC_ARG_WITH(sdl-exec-prefix,[ --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)], | |
| 20 sdl_exec_prefix="$withval", sdl_exec_prefix="") | |
| 21 AC_ARG_ENABLE(sdltest, [ --disable-sdltest Do not try to compile and run a test SDL program], | |
| 22 , enable_sdltest=yes) | |
| 23 | |
| 3340 | 24 min_sdl_version=ifelse([$1], ,1.2.0,$1) |
| 25 | |
| 26 if test "x$sdl_prefix$sdl_exec_prefix" = x ; then | |
| 27 PKG_CHECK_MODULES(SDL, [sdl >= $min_sdl_version], | |
| 28 [sdl_pc=yes], | |
| 29 [dnl | |
| 30 AC_MSG_RESULT(no) | |
| 31 sdl_pc=no | |
| 32 ]) | |
| 33 else | |
| 34 sdl_pc=no | |
| 35 if test x$sdl_exec_prefix != x ; then | |
| 36 sdl_config_args="$sdl_config_args --exec-prefix=$sdl_exec_prefix" | |
| 37 if test x${SDL_CONFIG+set} != xset ; then | |
| 38 SDL_CONFIG=$sdl_exec_prefix/bin/sdl-config | |
| 39 fi | |
|
1755
91063c450171
Don't add NONE/bin to the path - inexplicably fixes building on mingw+msys, apparently
Sam Lantinga <slouken@libsdl.org>
parents:
1550
diff
changeset
|
40 fi |
| 3340 | 41 if test x$sdl_prefix != x ; then |
| 42 sdl_config_args="$sdl_config_args --prefix=$sdl_prefix" | |
| 43 if test x${SDL_CONFIG+set} != xset ; then | |
| 44 SDL_CONFIG=$sdl_prefix/bin/sdl-config | |
| 45 fi | |
|
1755
91063c450171
Don't add NONE/bin to the path - inexplicably fixes building on mingw+msys, apparently
Sam Lantinga <slouken@libsdl.org>
parents:
1550
diff
changeset
|
46 fi |
| 0 | 47 fi |
| 48 | |
| 3340 | 49 if test "x$sdl_pc" = xyes ; then |
| 50 no_sdl="" | |
|
3379
3dd59e993979
pkg-config replaced sdl-config in these cases.
Sam Lantinga <slouken@libsdl.org>
parents:
3340
diff
changeset
|
51 SDL_CONFIG="pkg-config sdl" |
| 0 | 52 else |
| 3340 | 53 as_save_PATH="$PATH" |
| 54 if test "x$prefix" != xNONE && test "$cross_compiling" != yes; then | |
| 55 PATH="$prefix/bin:$prefix/usr/bin:$PATH" | |
| 56 fi | |
| 57 AC_PATH_PROG(SDL_CONFIG, sdl-config, no, [$PATH]) | |
| 58 PATH="$as_save_PATH" | |
| 59 AC_MSG_CHECKING(for SDL - version >= $min_sdl_version) | |
| 60 no_sdl="" | |
| 0 | 61 |
| 3340 | 62 if test "$SDL_CONFIG" = "no" ; then |
| 63 no_sdl=yes | |
| 64 else | |
| 65 SDL_CFLAGS=`$SDL_CONFIG $sdl_config_args --cflags` | |
| 66 SDL_LIBS=`$SDL_CONFIG $sdl_config_args --libs` | |
| 67 | |
| 68 sdl_major_version=`$SDL_CONFIG $sdl_config_args --version | \ | |
| 69 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'` | |
| 70 sdl_minor_version=`$SDL_CONFIG $sdl_config_args --version | \ | |
| 71 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'` | |
| 72 sdl_micro_version=`$SDL_CONFIG $sdl_config_args --version | \ | |
| 73 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'` | |
| 74 if test "x$enable_sdltest" = "xyes" ; then | |
| 75 ac_save_CFLAGS="$CFLAGS" | |
| 76 ac_save_CXXFLAGS="$CXXFLAGS" | |
| 77 ac_save_LIBS="$LIBS" | |
| 78 CFLAGS="$CFLAGS $SDL_CFLAGS" | |
| 79 CXXFLAGS="$CXXFLAGS $SDL_CFLAGS" | |
| 80 LIBS="$LIBS $SDL_LIBS" | |
| 0 | 81 dnl |
| 82 dnl Now check if the installed SDL is sufficiently new. (Also sanity | |
| 83 dnl checks the results of sdl-config to some extent | |
| 84 dnl | |
| 85 rm -f conf.sdltest | |
| 86 AC_TRY_RUN([ | |
| 87 #include <stdio.h> | |
| 88 #include <stdlib.h> | |
| 89 #include <string.h> | |
| 90 #include "SDL.h" | |
| 91 | |
| 92 char* | |
| 93 my_strdup (char *str) | |
| 94 { | |
| 95 char *new_str; | |
| 96 | |
| 97 if (str) | |
| 98 { | |
| 99 new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char)); | |
| 100 strcpy (new_str, str); | |
| 101 } | |
| 102 else | |
| 103 new_str = NULL; | |
| 104 | |
| 105 return new_str; | |
| 106 } | |
| 107 | |
| 108 int main (int argc, char *argv[]) | |
| 109 { | |
| 110 int major, minor, micro; | |
| 111 char *tmp_version; | |
| 112 | |
| 113 /* This hangs on some systems (?) | |
| 114 system ("touch conf.sdltest"); | |
| 115 */ | |
| 116 { FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); } | |
| 117 | |
| 118 /* HP/UX 9 (%@#!) writes to sscanf strings */ | |
| 119 tmp_version = my_strdup("$min_sdl_version"); | |
| 120 if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) { | |
| 121 printf("%s, bad version string\n", "$min_sdl_version"); | |
| 122 exit(1); | |
| 123 } | |
| 124 | |
| 125 if (($sdl_major_version > major) || | |
| 126 (($sdl_major_version == major) && ($sdl_minor_version > minor)) || | |
| 127 (($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro))) | |
| 128 { | |
| 129 return 0; | |
| 130 } | |
| 131 else | |
| 132 { | |
| 133 printf("\n*** 'sdl-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version); | |
| 134 printf("*** of SDL required is %d.%d.%d. If sdl-config is correct, then it is\n", major, minor, micro); | |
| 135 printf("*** best to upgrade to the required version.\n"); | |
| 136 printf("*** If sdl-config was wrong, set the environment variable SDL_CONFIG\n"); | |
| 137 printf("*** to point to the correct copy of sdl-config, and remove the file\n"); | |
| 138 printf("*** config.cache before re-running configure\n"); | |
| 139 return 1; | |
| 140 } | |
| 141 } | |
| 142 | |
| 143 ],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) | |
| 3340 | 144 CFLAGS="$ac_save_CFLAGS" |
| 145 CXXFLAGS="$ac_save_CXXFLAGS" | |
| 146 LIBS="$ac_save_LIBS" | |
| 147 fi | |
| 148 fi | |
| 149 if test "x$no_sdl" = x ; then | |
| 150 AC_MSG_RESULT(yes) | |
| 151 else | |
| 152 AC_MSG_RESULT(no) | |
| 153 fi | |
| 0 | 154 fi |
| 155 if test "x$no_sdl" = x ; then | |
| 3340 | 156 ifelse([$2], , :, [$2]) |
| 0 | 157 else |
| 158 if test "$SDL_CONFIG" = "no" ; then | |
| 159 echo "*** The sdl-config script installed by SDL could not be found" | |
| 160 echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in" | |
| 161 echo "*** your path, or set the SDL_CONFIG environment variable to the" | |
| 162 echo "*** full path to sdl-config." | |
| 163 else | |
| 164 if test -f conf.sdltest ; then | |
| 165 : | |
| 166 else | |
| 167 echo "*** Could not run SDL test program, checking why..." | |
| 168 CFLAGS="$CFLAGS $SDL_CFLAGS" | |
|
1118
65f4b2dd46b7
Date: Wed, 17 Aug 2005 11:23:40 -0400
Ryan C. Gordon <icculus@icculus.org>
parents:
794
diff
changeset
|
169 CXXFLAGS="$CXXFLAGS $SDL_CFLAGS" |
| 0 | 170 LIBS="$LIBS $SDL_LIBS" |
| 171 AC_TRY_LINK([ | |
| 172 #include <stdio.h> | |
| 173 #include "SDL.h" | |
|
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Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
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174 |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
175 int main(int argc, char *argv[]) |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
176 { return 0; } |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
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177 #undef main |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
178 #define main K_and_R_C_main |
| 0 | 179 ], [ return 0; ], |
| 180 [ echo "*** The test program compiled, but did not run. This usually means" | |
| 181 echo "*** that the run-time linker is not finding SDL or finding the wrong" | |
| 182 echo "*** version of SDL. If it is not finding SDL, you'll need to set your" | |
| 183 echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point" | |
| 184 echo "*** to the installed location Also, make sure you have run ldconfig if that" | |
| 185 echo "*** is required on your system" | |
| 186 echo "***" | |
| 187 echo "*** If you have an old version installed, it is best to remove it, although" | |
| 188 echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"], | |
| 189 [ echo "*** The test program failed to compile or link. See the file config.log for the" | |
| 190 echo "*** exact error that occured. This usually means SDL was incorrectly installed" | |
| 191 echo "*** or that you have moved SDL since it was installed. In the latter case, you" | |
| 192 echo "*** may want to edit the sdl-config script: $SDL_CONFIG" ]) | |
| 193 CFLAGS="$ac_save_CFLAGS" | |
|
1118
65f4b2dd46b7
Date: Wed, 17 Aug 2005 11:23:40 -0400
Ryan C. Gordon <icculus@icculus.org>
parents:
794
diff
changeset
|
194 CXXFLAGS="$ac_save_CXXFLAGS" |
| 0 | 195 LIBS="$ac_save_LIBS" |
| 196 fi | |
| 197 fi | |
| 198 SDL_CFLAGS="" | |
| 199 SDL_LIBS="" | |
| 200 ifelse([$3], , :, [$3]) | |
| 201 fi | |
| 202 AC_SUBST(SDL_CFLAGS) | |
| 203 AC_SUBST(SDL_LIBS) | |
| 204 rm -f conf.sdltest | |
| 205 ]) |