Ports: Add Tux Racer

The patches take care of a port from SDL1 to SDL2 and replace the
keyboard mapping logic, which will otherwise take a whopping 16 GiB of
memory to run.

4 files changed, 438 insertions, 0 deletions

diff --git a/Ports/AvailablePorts.md b/Ports/AvailablePorts.md
index 7bb54abd80..3ea1ba0ea9 100644
--- a/Ports/AvailablePorts.md
+++ b/Ports/AvailablePorts.md
@@ -170,6 +170,7 @@ Please make sure to keep this list up to date when adding and updating ports. :^
 | [`stpuzzles`](stpuzzles/)              | Simon Tatham's Portable Puzzle Collection                       |                          | https://www.chiark.greenend.org.uk/~sgtatham/puzzles/                          |
 | [`stress-ng`](stress-ng/)              | stress-ng                                                       | 0.11.23                  | https://github.com/ColinIanKing/stress-ng                                      |
 | [`Super-Mario`](Super-Mario/)          | Super-Mario Clone                                               |                          | https://github.com/Bennyhwanggggg/Super-Mario-Clone-Cpp                        |
+| [`tuxracer`](tuxracer/)                | Tux Racer                                                       | 0.61                     | http://tuxracer.sourceforge.net/                                               |
 | [`tcl`](tcl/)                          | Tcl                                                             | 8.6.11                   | https://www.tcl-lang.org/                                                      |
 | [`termcap`](termcap/)                  | GNU termcap                                                     | 1.3.1                    | https://www.gnu.org/software/termutils/                                        |
 | [`tinycc`](tinycc/)                    | Tiny C Compiler (TinyCC)                                        | dev                      | https://github.com/TinyCC/tinycc                                               |
diff --git a/Ports/tuxracer/package.sh b/Ports/tuxracer/package.sh
new file mode 100755
index 0000000000..c08a539607
--- /dev/null
+++ b/Ports/tuxracer/package.sh
@@ -0,0 +1,36 @@
+#!/usr/bin/env -S bash ../.port_include.sh
+port=tuxracer
+useconfigure="true"
+version="0.61"
+files="http://ftp.e.kth.se/pub/mpkg/distfiles/tuxracer/${version}/tuxracer-${version}.tar.gz tuxracer-${version}.tar.gz a311d09080598fe556134d4b9faed7dc0c2ed956ebb10d062e5d4df022f91eff
+http://ftp.e.kth.se/pub/mpkg/distfiles/tuxracer/${version}/tuxracer-data-${version}.tar.gz tuxracer-data-${version}.tar.gz 3783d204b7bb1ed16aa5e5a1d5944de10fbee05bc7cebb8f616fce84301f3651"
+auth_type=sha256
+depends=("glu" "SDL2" "SDL2_mixer" "tcl")
+configopts=(
+    "--with-gl-inc=${SERENITY_INSTALL_ROOT}/usr/include/LibGL"
+    "--with-gl-lib-name=gl"
+    "--with-sdl-prefix=${SERENITY_INSTALL_ROOT}/usr/local"
+    "--with-tcl-lib-name=tcl8.6"
+    "--without-x"
+)
+launcher_name="Tux Racer"
+launcher_category="Games"
+launcher_command="/usr/local/bin/tuxracer"
+
+pre_configure() {
+    export CFLAGS="-I${SERENITY_INSTALL_ROOT}/usr/local/include/SDL2"
+    export CXXFLAGS="-I${SERENITY_INSTALL_ROOT}/usr/local/include/SDL2"
+    export LIBS="-lmodplug -lSDL2"
+}
+
+post_configure() {
+    unset LIBS
+    unset CXXFLAGS
+    unset CFLAGS
+}
+
+post_install() {
+    resourcePath="${SERENITY_INSTALL_ROOT}/usr/local/share/tuxracer"
+    mkdir -p "${resourcePath}"
+    cp -r tuxracer-data-${version}/* "${resourcePath}/"
+}
diff --git a/Ports/tuxracer/patches/configure.patch b/Ports/tuxracer/patches/configure.patch
new file mode 100644
index 0000000000..d6e803788d
--- /dev/null
+++ b/Ports/tuxracer/patches/configure.patch
@@ -0,0 +1,29 @@
+--- tuxracer-0.61-original/configure	2021-12-23 14:26:17.978567580 +0000
++++ tuxracer-0.61/configure	2021-12-24 12:12:08.718881004 +0000
+@@ -1674,7 +1674,7 @@
+ 
+ ; return 0; }
+ EOF
+-if { (eval echo configure:1678: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
++if [ "$ac_func" = "isnan" ]; then
+   rm -rf conftest*
+   eval "ac_cv_func_$ac_func=yes"
+ else
+@@ -3415,7 +3415,7 @@
+   echo $ac_n "(cached) $ac_c" 1>&6
+ else
+   ac_save_LIBS="$LIBS"
+-LIBS="-lSDL_mixer  $LIBS"
++LIBS="-lSDL2_mixer  $LIBS"
+ cat > conftest.$ac_ext <<EOF
+ #line 3423 "configure"
+ #include "confdefs.h"
+@@ -3452,7 +3452,7 @@
+ 
+ 	if test "x$have_SDL_mixer" = "xyes" ; then 
+ 	    TR_CPPFLAGS="$TR_CPPFLAGS -DHAVE_SDL_MIXER=1" 
+-	    TR_LIBS="$TR_LIBS -lSDL_mixer"
++	    TR_LIBS="$TR_LIBS -lSDL2_mixer"
+ 	else
+ 	    echo "*** SDL_mixer not found.  Configuring without audio support."
+ 	fi
diff --git a/Ports/tuxracer/patches/source.patch b/Ports/tuxracer/patches/source.patch
new file mode 100644
index 0000000000..ff5948a924
--- /dev/null
+++ b/Ports/tuxracer/patches/source.patch
@@ -0,0 +1,372 @@
+diff -ur tuxracer-0.61-original/src/game_config.c tuxracer-0.61/src/game_config.c
+--- tuxracer-0.61-original/src/game_config.c	2001-01-30 20:04:43.000000000 +0000
++++ tuxracer-0.61/src/game_config.c	2021-12-26 13:41:33.341076372 +0000
+@@ -114,26 +114,26 @@
+  */
+ 
+ #define INIT_PARAM( nam, val, typename, commnt ) \
+-   Params. ## nam ## .loaded = False; \
+-   Params. ## nam ## .name = #nam; \
+-   Params. ## nam ## .deflt. ## typename ## _val  = val; \
+-   Params. ## nam ## .comment = commnt;
++   Params.nam.loaded = False; \
++   Params.nam.name = #nam; \
++   Params.nam.deflt.typename ## _val  = val; \
++   Params.nam.comment = commnt;
+ 
+ #define INIT_PARAM_STRING( nam, val, commnt ) \
+    INIT_PARAM( nam, val, string, commnt ); \
+-   Params. ## nam ## .type = PARAM_STRING;
++   Params.nam.type = PARAM_STRING;
+ 
+ #define INIT_PARAM_CHAR( nam, val, commnt ) \
+    INIT_PARAM( nam, val, char, commnt ); \
+-   Params. ## nam ## .type = PARAM_CHAR;
++   Params.nam.type = PARAM_CHAR;
+ 
+ #define INIT_PARAM_INT( nam, val, commnt ) \
+    INIT_PARAM( nam, val, int, commnt ); \
+-   Params. ## nam ## .type = PARAM_INT;
++   Params.nam.type = PARAM_INT;
+ 
+ #define INIT_PARAM_BOOL( nam, val, commnt ) \
+    INIT_PARAM( nam, val, bool, commnt ); \
+-   Params. ## nam ## .type = PARAM_BOOL;
++   Params.nam.type = PARAM_BOOL;
+ 
+ 
+ /*
+@@ -310,13 +310,13 @@
+  */
+ #define FN_PARAM( name, typename, type ) \
+     type getparam_ ## name() { \
+-        if ( !Params. ## name ## .loaded ) { \
+-            fetch_param_ ## typename( &( Params. ## name ) ); \
++        if ( !Params.name.loaded ) { \
++            fetch_param_ ## typename( &( Params.name ) ); \
+         } \
+-        return Params. ## name ## .val. ## typename ## _val; \
++        return Params.name.val.typename ## _val; \
+     } \
+     void setparam_ ## name( type val) { \
+-        set_param_ ## typename( &( Params. ## name ), val ); } 
++        set_param_ ## typename( &( Params.name ), val ); } 
+ 
+ #define FN_PARAM_STRING( name ) \
+     FN_PARAM( name, string, char* )
+@@ -505,7 +505,7 @@
+         "# decreasing this number, at the cost of lower image quality." );
+ 
+     INIT_PARAM_BOOL( 
+-	fullscreen, True,
++	fullscreen, False,
+ 	"# If true then the game will run in full-screen mode." );
+ 
+     INIT_PARAM_INT( 
+diff -ur tuxracer-0.61-original/src/keyboard.c tuxracer-0.61/src/keyboard.c
+--- tuxracer-0.61-original/src/keyboard.c	2001-01-13 22:09:51.000000000 +0000
++++ tuxracer-0.61/src/keyboard.c	2021-12-26 13:41:33.341076372 +0000
+@@ -23,11 +23,17 @@
+ #include "loop.h"
+ 
+ #define KEYMAP_SIZE 1000
+-#define KEYTABLE_SIZE WSK_LAST
+-#define SPECIAL_KEYTABLE_SIZE WSK_LAST 
++#define KEYTABLE_SIZE 100
+ 
+-static key_cb_t keytable[KEYTABLE_SIZE];
+-static key_cb_t special_keytable[SPECIAL_KEYTABLE_SIZE];
++static key_cb_t keytable_callback[KEYTABLE_SIZE];
++static int keytable_key[KEYTABLE_SIZE];
++static int num_keytable_entries = 0;
++
++static key_cb_t special_keytable_callback[KEYTABLE_SIZE];
++static int special_keytable_key[KEYTABLE_SIZE];
++static int num_special_keytable_entries = 0;
++
++static key_cb_t default_keytable_callback = NULL;
+ 
+ static keymap_t keymap[KEYMAP_SIZE];
+ static int num_keymap_entries = 0;
+@@ -50,19 +56,6 @@
+     return 0; /* success */
+ }
+ 
+-static void fill_keytable( key_cb_t value  )
+-{
+-    int i;
+-
+-    for (i=0; i<KEYTABLE_SIZE; i++) {
+-	keytable[i] = value;
+-    }
+-
+-    for (i=0; i<SPECIAL_KEYTABLE_SIZE; i++) {
+-	special_keytable[i] = value;
+-    }
+-}
+-
+ static int insert_keytable_entries( char *keys, key_cb_t callback )
+ {
+     key_desc_t *key_list;
+@@ -74,9 +67,13 @@
+     if ( num_keys > 0 ) {
+ 	for ( i=0; i<num_keys; i++ ) {
+ 	    if ( key_list[i].special ) {
+-		special_keytable[ key_list[i].key ] = callback;
++			special_keytable_callback[num_special_keytable_entries] = callback;
++			special_keytable_key[num_special_keytable_entries] = key_list[i].key;
++			++num_special_keytable_entries;
+ 	    } else {
+-		keytable[ key_list[i].key ] = callback;
++			keytable_callback[num_keytable_entries] = callback;
++			keytable_key[num_keytable_entries] = key_list[i].key;
++			++num_keytable_entries;
+ 	    }
+ 	} 
+ 
+@@ -92,15 +89,14 @@
+ {
+     int i;
+     char *keys;
+-    fill_keytable( NULL );
+ 
+     /* Handle default callbacks first */
+     for (i=0; i<num_keymap_entries; i++) {
+ 	if ( ( keymap[i].mode == mode || keymap[i].mode == ALL_MODES ) && 
+             keymap[i].keymap_class == DEFAULT_CALLBACK ) 
+         {
+-	    fill_keytable( keymap[i].key_cb );
+-	}
++			default_keytable_callback = keymap[i].key_cb;
++		}
+     }
+ 
+     /* Handle other classes */
+@@ -155,7 +151,9 @@
+ 			      bool_t release, int x, int y )
+ {
+     static game_mode_t last_mode = NO_MODE;
+-    key_cb_t *table;
++	int* table_key;
++    key_cb_t* table_callback;
++	int num_entries;
+ 
+     if ( is_mode_change_pending() ) {
+ 	/* Don't process keyboard events until the mode change happens */
+@@ -168,18 +166,28 @@
+     }
+ 
+     if ( special ) {
+-	table = special_keytable;
++		table_callback = special_keytable_callback;
++		table_key = special_keytable_key;
++		num_entries = num_special_keytable_entries;
+     } else {
+-	table = keytable;
++		table_callback = keytable_callback;
++		table_key = keytable_key;
++		num_entries = num_keytable_entries;
+     }
+ 
+     if ( isalpha( key ) ) {
+-	key = tolower( key );
++		key = tolower( key );
+     }
+ 
+-    if ( table[key] != NULL ) {
+-	(table[key])( key, special, release, x, y );
+-    }
++	// Find index
++	int callback_index = 0;
++	for (; callback_index < num_entries; ++callback_index) {
++		if (table_key[callback_index] == key)
++			break;
++	}
++	if (callback_index < num_entries) {
++		(table_callback[callback_index])(key, special, release, x, y);
++	}
+ }
+ 
+ void init_keyboard()
+diff -ur tuxracer-0.61-original/src/winsys.c tuxracer-0.61/src/winsys.c
+--- tuxracer-0.61-original/src/winsys.c	2001-01-13 22:09:51.000000000 +0000
++++ tuxracer-0.61/src/winsys.c	2021-12-26 13:48:57.590964343 +0000
+@@ -36,7 +36,8 @@
+ /*---------------------------------------------------------------------------*/
+ /*---------------------------------------------------------------------------*/
+ 
+-static SDL_Surface *screen = NULL;
++static SDL_Window *screen = NULL;
++static SDL_GLContext context = NULL;
+ 
+ static winsys_display_func_t display_func = NULL;
+ static winsys_idle_func_t idle_func = NULL;
+@@ -164,7 +165,7 @@
+ */
+ void winsys_swap_buffers()
+ {
+-    SDL_GL_SwapBuffers();
++    SDL_GL_SwapWindow(screen);
+ }
+ 
+ 
+@@ -177,7 +178,7 @@
+ */
+ void winsys_warp_pointer( int x, int y )
+ {
+-    SDL_WarpMouse( x, y );
++    SDL_WarpMouseInWindow( screen, x, y );
+ }
+ 
+ 
+@@ -190,14 +191,14 @@
+ */
+ static void setup_sdl_video_mode()
+ {
+-    Uint32 video_flags = SDL_OPENGL; 
++    Uint32 video_flags = SDL_WINDOW_OPENGL; 
+     int bpp = 0;
+     int width, height;
+ 
+     if ( getparam_fullscreen() ) {
+-	video_flags |= SDL_FULLSCREEN;
++	video_flags |= SDL_WINDOW_FULLSCREEN;
+     } else {
+-	video_flags |= SDL_RESIZABLE;
++	video_flags |= SDL_WINDOW_RESIZABLE;
+     }
+ 
+     switch ( getparam_bpp_mode() ) {
+@@ -224,12 +225,16 @@
+     width = getparam_x_resolution();
+     height = getparam_y_resolution();
+ 
+-    if ( ( screen = SDL_SetVideoMode( width, height, bpp, video_flags ) ) == 
++    if ( ( screen = SDL_CreateWindow("Tuxracer", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, width, height, video_flags ) ) == 
+ 	 NULL ) 
+     {
+ 	handle_system_error( 1, "Couldn't initialize video: %s", 
+ 			     SDL_GetError() );
+     }
++
++    context = SDL_GL_CreateContext(screen);
++    if (context == NULL)
++    	handle_system_error( 1, "Couldn't initialize video: %s", SDL_GetError() );
+ }
+ 
+ 
+@@ -266,8 +271,7 @@
+ 
+     setup_sdl_video_mode();
+ 
+-    SDL_WM_SetCaption( window_title, icon_title );
+-
++    SDL_SetWindowTitle(screen, window_title);
+ }
+ 
+ 
+@@ -280,6 +284,7 @@
+ */
+ void winsys_shutdown()
+ {
++    SDL_GL_DeleteContext(context);
+     SDL_Quit();
+ }
+ 
+@@ -293,12 +298,6 @@
+ */
+ void winsys_enable_key_repeat( bool_t enabled )
+ {
+-    if ( enabled ) {
+-	SDL_EnableKeyRepeat( SDL_DEFAULT_REPEAT_DELAY,
+-			     SDL_DEFAULT_REPEAT_INTERVAL );
+-    } else {
+-	SDL_EnableKeyRepeat( 0, 0 );
+-    }
+ }
+ 
+ 
+@@ -330,9 +329,6 @@
+ 
+     while (True) {
+ 
+-	SDL_LockAudio();
+-	SDL_UnlockAudio();
+-
+ 	while ( SDL_PollEvent( &event ) ) {
+ 	    
+ 	    switch ( event.type ) {
+@@ -384,18 +380,15 @@
+ 		}
+ 		break;
+ 
+-	    case SDL_VIDEORESIZE:
++	    case SDL_WINDOWEVENT_RESIZED:
+ 		setup_sdl_video_mode();
+ 		if ( reshape_func ) {
+-		    (*reshape_func)( event.resize.w,
+-				     event.resize.h );
++		    (*reshape_func)( event.window.data1,
++				     event.window.data2 );
+ 		}
+ 		
+ 		break;
+ 	    }
+-
+-	    SDL_LockAudio();
+-	    SDL_UnlockAudio();
+ 	}
+ 
+ 	if ( redisplay && display_func ) {
+diff -ur tuxracer-0.61-original/src/winsys.h tuxracer-0.61/src/winsys.h
+--- tuxracer-0.61-original/src/winsys.h	2001-01-13 22:09:51.000000000 +0000
++++ tuxracer-0.61/src/winsys.h	2021-12-26 13:41:33.341076372 +0000
+@@ -48,16 +48,16 @@
+     WSK_NOT_AVAIL = SDLK_UNKNOWN,
+ 
+     /* Numeric keypad */
+-    WSK_KP0 = SDLK_KP0,
+-    WSK_KP1 = SDLK_KP1,
+-    WSK_KP2 = SDLK_KP2,
+-    WSK_KP3 = SDLK_KP3,
+-    WSK_KP4 = SDLK_KP4,
+-    WSK_KP5 = SDLK_KP5,
+-    WSK_KP6 = SDLK_KP6,
+-    WSK_KP7 = SDLK_KP7,
+-    WSK_KP8 = SDLK_KP8,
+-    WSK_KP9 = SDLK_KP9,
++    WSK_KP0 = SDLK_KP_0,
++    WSK_KP1 = SDLK_KP_1,
++    WSK_KP2 = SDLK_KP_2,
++    WSK_KP3 = SDLK_KP_3,
++    WSK_KP4 = SDLK_KP_4,
++    WSK_KP5 = SDLK_KP_5,
++    WSK_KP6 = SDLK_KP_6,
++    WSK_KP7 = SDLK_KP_7,
++    WSK_KP8 = SDLK_KP_8,
++    WSK_KP9 = SDLK_KP_9,
+     WSK_KP_PERIOD = SDLK_KP_PERIOD,
+     WSK_KP_DIVIDE = SDLK_KP_DIVIDE,
+     WSK_KP_MULTIPLY = SDLK_KP_MULTIPLY,
+@@ -95,17 +95,17 @@
+     WSK_F15 = SDLK_F15,
+ 
+     /* Key state modifier keys */
+-    WSK_NUMLOCK = SDLK_NUMLOCK,
++    WSK_NUMLOCK = SDLK_NUMLOCKCLEAR,
+     WSK_CAPSLOCK = SDLK_CAPSLOCK,
+-    WSK_SCROLLOCK = SDLK_SCROLLOCK,
++    WSK_SCROLLOCK = SDLK_SCROLLLOCK,
+     WSK_RSHIFT = SDLK_RSHIFT,
+     WSK_LSHIFT = SDLK_LSHIFT,
+     WSK_RCTRL = SDLK_RCTRL,
+     WSK_LCTRL = SDLK_LCTRL,
+     WSK_RALT = SDLK_RALT,
+     WSK_LALT = SDLK_LALT,
+-    WSK_RMETA = SDLK_RMETA,
+-    WSK_LMETA = SDLK_LMETA,
++    WSK_RMETA = SDLK_RALT,
++    WSK_LMETA = SDLK_LALT,
+ 
+     WSK_LAST
+