Didj and Explorer SDL ttf

this is a very short tutorial on how to compile and install TrueType font support for the SDL library.

Pre-requisites

A working toolchain (see the front page) the leapfrog 2.6.31 sources A working installation of libSDL would be useful an internet connection freetype font library

It is fairly simple to install SDL_ttf, it requires freetype to be installed as well, so we will do both from their own folder in the packages directory, so browse to your kernel sources, go to the packages folder and make 2 new folders:

mkdir SDL_ttf freetype

copy the following into a a text editor and save it into the freetype folder as install.sh

export CFLAGS='-I${ROOTFS_PATH}/usr/include -I${ROOTFS_PATH}/usr/include/SDL' export LD_FLAGS='-L${ROOTFS_PATH}/usr/lib' export CC=arm-linux-uclibcgnueabi-gcc export CXX=arm-linux-uclibcgnueabi-g++ if [ "$CLEAN" == "1" ]; then rm -rf ./SDL_ttf-2.0.10 rm ./SDL_ttf-2.0.10.tar.gz wget http://www.libsdl.org/projects/SDL_ttf/release/SDL_ttf-2.0.10.tar.gz tar -xf SDL_ttf-2.0.10.tar.gz fi cd ./SDL_ttf-2.0.10 ./configure --prefix=${ROOTFS_PATH}/usr --build=`uname -m` --host=arm-linux --enable-shared --libdir=${ROOTFS_PATH}/usr/lib --includedir=${ROOTFS_PATH}/usr/include --without-x --disable-opengl --with-sdl-prefix=${ROOTFS_PATH}/usr/ make -j3 make -j3 install
 * 1) !/bin/bash

Now do the same for SDL_ttf and save it into the SDL_ttf folder as install.sh

As long as you have your enviroment variables set you should now be able to start compiling/installing the freetype lib which is needed by SDL_ttf.

go into the freetype directory and type:

CLEAN=1 ./install.sh

Once its done you should have the freetype headers in your ROOTFS_PATH/usr/include and the libs in ROOTFS_PATH/usr/lib, if they are there you are now ready to compile SDL_ttf.

Same procedure here, go into the SDL_ttf directory and type:

CLEAN=1 ./install.sh

that should put your headers and libs into their appropriate places in ROOTFS_PATH/usr/include and /lib

if you ever want to build either lib again, you can omit the CLEAN=1 from the ./install.sh command, unless of course you want to build from scratch.

to use the libs add the following to your .c file:


 * 1) include "SDL/SDL_ttf.h"

and to compile use something like this:

arm-linux-uclibcgnueabi-gcc -o testttf testttf.c -I${ROOTFS_PATH}/usr/include/ -L${ROOTFS_PATH}/usr/lib -lSDL -lSDL_ttf -lfreetype -lpthread