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authorDan Nicholson <dbn.lists@gmail.com>2007-12-05 21:04:15 -0800
committerDan Nicholson <dbn.lists@gmail.com>2007-12-07 14:34:27 -0800
commit6689f9ebcb586333d059ace12ccff950bb6411b1 (patch)
tree72d54840d9987386badf2a03c3c2268d1d2a92cf
parent979ff5153d563e5c79c17142fedecc1b45858a2f (diff)
autoconf: Configure the osmesa channel size for OSMesa16 and OSMesa32
Allow the user to specify channel bits of 16 or 32 to enable OSMesa16 or OSMesa32 instead of the default OSMesa. This option is controlled through the option --with-osmesa-bits=BITS and is only honored when the driver is osmesa. The osdemos are not enabled in the 16 or 32 bit case because the Makefile is currently hardcoded to link to -lOSMesa.
-rw-r--r--configs/autoconf.in2
-rw-r--r--configure.ac31
2 files changed, 30 insertions, 3 deletions
diff --git a/configs/autoconf.in b/configs/autoconf.in
index 8cb1ba75b8..a1896a6440 100644
--- a/configs/autoconf.in
+++ b/configs/autoconf.in
@@ -46,7 +46,7 @@ GL_LIB = GL
GLU_LIB = GLU
GLUT_LIB = glut
GLW_LIB = GLw
-OSMESA_LIB = OSMesa
+OSMESA_LIB = @OSMESA_LIB@
# Library names (actual file names)
GL_LIB_NAME = @GL_LIB_NAME@
diff --git a/configure.ac b/configure.ac
index 9272b01dc5..db6a7850a4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -328,6 +328,30 @@ if test "x$x11_osmesa" = xyes; then
fi
fi
+dnl Configure the channel bits for OSMesa (libOSMesa, libOSMesa16, ...)
+AC_ARG_WITH(osmesa-bits,
+ [AS_HELP_STRING([--with-osmesa-bits=BITS],
+ [OSMesa channel bits and library name: 8, 16, 32 @<:@default=8@:>@])],
+ osmesa_bits="$withval",
+ osmesa_bits=8)
+if test "$mesa_driver" != osmesa && test "x$osmesa_bits" != x8; then
+ AC_MSG_WARN([Ignoring OSMesa channel bits for non-OSMesa driver])
+ osmesa_bits=8
+fi
+case "x$osmesa_bits" in
+x8)
+ OSMESA_LIB=OSMesa
+ ;;
+x16|x32)
+ OSMESA_LIB="OSMesa$osmesa_bits"
+ DEFINES="$DEFINES -DCHAN_BITS=$osmesa_bits -DDEFAULT_SOFTWARE_DEPTH_BITS=31"
+ ;;
+*)
+ AC_MSG_ERROR([OSMesa bits '$osmesa_bits' is not a valid option])
+ ;;
+esac
+AC_SUBST(OSMESA_LIB)
+
case "$mesa_driver" in
osmesa)
OSMESA_LIB_DEPS="-lm -lpthread"
@@ -355,8 +379,11 @@ if test "x$enable_glu" = xyes; then
case "$mesa_driver" in
osmesa)
- # If GLU is available, we can build the osdemos
- PROGRAM_DIRS="$PROGRAM_DIRS osdemos"
+ # If GLU is available and we have libOSMesa (not 16 or 32),
+ # we can build the osdemos
+ if test "$osmesa_bits" = 8; then
+ PROGRAM_DIRS="$PROGRAM_DIRS osdemos"
+ fi
# Link libGLU to libOSMesa instead of libGL
GLU_LIB_DEPS=""