Mercurial > sdl-ios-xcode
view test/configure.in @ 1555:780fd5b61df1
Fixed bug #89
Date: Sun, 23 Oct 2005 16:39:03 +0200
From: "A. Schmid" <sahib@phreaker.net>
Subject: [SDL] no software surfaces with svgalib driver?
Hi,
I noticed that the SDL (1.2.9) svgalib driver only makes use of linear
addressable (framebuffer) video modes. On older systems (like one of
mine), linear addressable modes are often not available.
Especially for cards with VESA VBE < 2.0 the svgalib vesa driver is
unusable, since VESA only supports framebuffering for VBE 2.0 and later.
The changes necessary to add support for software surfaces seem to be
relatively small. I only had to hack src/video/svga/SDL_svgavideo.c (see
attached patch). The code worked fine for me, but it is no more than a
proof of concept and should be reviewed (probably has a memory leak when
switching modes). It also uses the vgagl library (included in the
svgalib package) and needs to be linked against it.
-Alex
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 19 Mar 2006 12:05:16 +0000 |
parents | 31c2b8e4885e |
children | 0a53c90a37f9 a7cda692b681 |
line wrap: on
line source
dnl Process this file with autoconf to produce a configure script. AC_INIT(README) dnl Detect the canonical build and host environments AC_CONFIG_AUX_DIRS($srcdir/../build-scripts) AC_CANONICAL_HOST dnl Check for tools AC_PROG_CC dnl Check for compiler environment AC_C_CONST dnl Figure out which math library to use case "$host" in *-*-cygwin* | *-*-mingw32*) EXE=".exe" MATHLIB="" SYS_GL_LIBS="-lopengl32" ;; *-*-beos*) EXE="" MATHLIB="" SYS_GL_LIBS="-lGL" ;; *-*-darwin* ) EXE="" MATHLIB="" SYS_GL_LIBS="" ;; *-*-aix*) EXE="" if test x$ac_cv_prog_gcc = xyes; then CFLAGS="-mthreads" fi SYS_GL_LIBS="" ;; *-*-mint*) EXE="" MATHLIB="" AC_PATH_PROG(OSMESA_CONFIG, osmesa-config, no) if test "x$OSMESA_CONFIG" = "xyes"; then OSMESA_CFLAGS=`$OSMESA_CONFIG --cflags` OSMESA_LIBS=`$OSMESA_CONFIG --libs` CFLAGS="$CFLAGS $OSMESA_CFLAGS" SYS_GL_LIBS="$OSMESA_LIBS" else SYS_GL_LIBS="-lOSMesa" fi ;; *) EXE="" MATHLIB="-lm" SYS_GL_LIBS="-lGL" ;; esac AC_SUBST(EXE) AC_SUBST(MATHLIB) dnl Check for SDL SDL_VERSION=1.2.10 AM_PATH_SDL($SDL_VERSION, :, AC_MSG_ERROR([*** SDL version $SDL_VERSION not found!]) ) CFLAGS="$CFLAGS $SDL_CFLAGS" LIBS="$LIBS $SDL_LIBS" dnl Check for OpenGL AC_MSG_CHECKING(for OpenGL support) have_opengl=no AC_TRY_COMPILE([ #include "SDL_opengl.h" ],[ ],[ have_opengl=yes ]) AC_MSG_RESULT($have_opengl) if test x$have_opengl = xyes; then CFLAGS="$CFLAGS -DHAVE_OPENGL" GLLIB="$SYS_GL_LIBS" else GLLIB="" fi AC_SUBST(GLLIB) dnl Finally create all the generated files AC_OUTPUT([Makefile])