/***********************************************************
* Artsoft Retro-Game Library *
*----------------------------------------------------------*
-* (c) 1994-2000 Artsoft Entertainment *
+* (c) 1994-2002 Artsoft Entertainment *
* Holger Schemel *
* Detmolder Strasse 189 *
* 33604 Bielefeld *
#include "system.h"
#include "sound.h"
+#include "joystick.h"
#include "misc.h"
/* video functions */
/* ========================================================================= */
+/* functions from SGE library */
+inline void sge_Line(SDL_Surface *, Sint16, Sint16, Sint16, Sint16, Uint32);
+
+#ifdef PLATFORM_WIN32
+#define FULLSCREEN_BUG
+#endif
+
+/* stuff needed to work around SDL/Windows fullscreen drawing bug */
+static int fullscreen_width;
+static int fullscreen_height;
+static int fullscreen_xoffset;
+static int fullscreen_yoffset;
+static int video_xoffset;
+static int video_yoffset;
+
inline void SDLInitVideoDisplay(void)
{
/* initialize SDL video */
inline void SDLInitVideoBuffer(DrawBuffer **backbuffer, DrawWindow **window,
boolean fullscreen)
{
+#ifdef FULLSCREEN_BUG
+ int i;
+ static int screen_xy[][2] =
+ {
+ { 640, 480 },
+ { 800, 600 },
+ { 1024, 768 },
+ { -1, -1 }
+ };
+#endif
+
+ /* default: normal game window size */
+ fullscreen_width = video.width;
+ fullscreen_height = video.height;
+ fullscreen_xoffset = 0;
+ fullscreen_yoffset = 0;
+
+#ifdef FULLSCREEN_BUG
+ for (i=0; screen_xy[i][0] != -1; i++)
+ {
+ if (video.width <= screen_xy[i][0] && video.height <= screen_xy[i][1])
+ {
+ fullscreen_width = screen_xy[i][0];
+ fullscreen_height = screen_xy[i][1];
+ break;
+ }
+ }
+
+ fullscreen_xoffset = (fullscreen_width - video.width) / 2;
+ fullscreen_yoffset = (fullscreen_height - video.height) / 2;
+#endif
+
/* open SDL video output device (window or fullscreen mode) */
if (!SDLSetVideoMode(backbuffer, fullscreen))
Error(ERR_EXIT, "setting video mode failed");
if (fullscreen && !video.fullscreen_enabled && video.fullscreen_available)
{
+ video_xoffset = fullscreen_xoffset;
+ video_yoffset = fullscreen_yoffset;
+
/* switch display to fullscreen mode, if available */
- if ((new_surface = SDL_SetVideoMode(video.width, video.height,
+ if ((new_surface = SDL_SetVideoMode(fullscreen_width, fullscreen_height,
video.depth, surface_flags_fullscreen))
== NULL)
{
if ((!fullscreen && video.fullscreen_enabled) || new_surface == NULL)
{
+ video_xoffset = 0;
+ video_yoffset = 0;
+
/* switch display to window mode */
if ((new_surface = SDL_SetVideoMode(video.width, video.height,
video.depth, surface_flags_window))
Bitmap *real_dst_bitmap = (dst_bitmap == window ? backbuffer : dst_bitmap);
SDL_Rect src_rect, dst_rect;
+#ifdef FULLSCREEN_BUG
+ if (src_bitmap == backbuffer)
+ {
+ src_x += video_xoffset;
+ src_y += video_yoffset;
+ }
+#endif
+
src_rect.x = src_x;
src_rect.y = src_y;
src_rect.w = width;
src_rect.h = height;
+#ifdef FULLSCREEN_BUG
+ if (dst_bitmap == backbuffer || dst_bitmap == window)
+ {
+ dst_x += video_xoffset;
+ dst_y += video_yoffset;
+ }
+#endif
+
dst_rect.x = dst_x;
dst_rect.y = dst_y;
dst_rect.w = width;
unsigned int color_g = (color >> 8) && 0xff;
unsigned int color_b = (color >> 0) && 0xff;
+#ifdef FULLSCREEN_BUG
+ if (dst_bitmap == backbuffer || dst_bitmap == window)
+ {
+ x += video_xoffset;
+ y += video_yoffset;
+ }
+#endif
+
rect.x = x;
rect.y = y;
rect.w = width;
SDL_UpdateRect(backbuffer->surface, x, y, width, height);
}
-inline void SDLDrawSimpleLine(SDL_Surface *surface, int from_x, int from_y,
+inline void SDLDrawSimpleLine(Bitmap *dst_bitmap, int from_x, int from_y,
int to_x, int to_y, unsigned int color)
{
+ SDL_Surface *surface = dst_bitmap->surface;
SDL_Rect rect;
unsigned int color_r = (color >> 16) & 0xff;
unsigned int color_g = (color >> 8) & 0xff;
rect.w = (to_x - from_x + 1);
rect.h = (to_y - from_y + 1);
+#ifdef FULLSCREEN_BUG
+ if (dst_bitmap == backbuffer || dst_bitmap == window)
+ {
+ rect.x += video_xoffset;
+ rect.y += video_yoffset;
+ }
+#endif
+
SDL_FillRect(surface, &rect,
SDL_MapRGB(surface->format, color_r, color_g, color_b));
}
-inline void SDLDrawLine(SDL_Surface *surface, int from_x, int from_y,
+inline void SDLDrawLine(Bitmap *dst_bitmap, int from_x, int from_y,
int to_x, int to_y, Uint32 color)
{
- sge_Line(surface, from_x, from_y, to_x, to_y, color);
+#ifdef FULLSCREEN_BUG
+ if (dst_bitmap == backbuffer || dst_bitmap == window)
+ {
+ from_x += video_xoffset;
+ from_y += video_yoffset;
+ to_x += video_xoffset;
+ to_y += video_yoffset;
+ }
+#endif
+
+ sge_Line(dst_bitmap->surface, from_x, from_y, to_x, to_y, color);
}
#if 0
}
#endif
+inline Pixel SDLGetPixel(Bitmap *dst_bitmap, int x, int y)
+{
+ SDL_Surface *surface = dst_bitmap->surface;
+
+#ifdef FULLSCREEN_BUG
+ if (dst_bitmap == backbuffer || dst_bitmap == window)
+ {
+ x += video_xoffset;
+ y += video_yoffset;
+ }
+#endif
+
+ switch (surface->format->BytesPerPixel)
+ {
+ case 1: /* assuming 8-bpp */
+ {
+ return *((Uint8 *)surface->pixels + y * surface->pitch + x);
+ }
+ break;
+
+ case 2: /* probably 15-bpp or 16-bpp */
+ {
+ return *((Uint16 *)surface->pixels + y * surface->pitch / 2 + x);
+ }
+ break;
+
+ case 3: /* slow 24-bpp mode; usually not used */
+ {
+ /* does this work? */
+ Uint8 *pix = (Uint8 *)surface->pixels + y * surface->pitch + x * 3;
+ Uint32 color = 0;
+ int shift;
+
+ shift = surface->format->Rshift;
+ color |= *(pix + shift / 8) >> shift;
+ shift = surface->format->Gshift;
+ color |= *(pix + shift / 8) >> shift;
+ shift = surface->format->Bshift;
+ color |= *(pix + shift / 8) >> shift;
+
+ return color;
+ }
+ break;
+
+ case 4: /* probably 32-bpp */
+ {
+ return *((Uint32 *)surface->pixels + y * surface->pitch / 4 + x);
+ }
+ break;
+ }
+
+ return 0;
+}
+
/* ========================================================================= */
-/* The following functions have been taken from the SGE library */
+/* The following functions were taken from the SGE library */
/* (SDL Graphics Extension Library) by Anders Lindström */
/* http://www.etek.chalmers.se/~e8cal1/sge/index.html */
/* ========================================================================= */
sge_Line(Surface, x1, y1, x2, y2, SDL_MapRGB(Surface->format, R, G, B));
}
+
+/* ========================================================================= */
+/* The following functions were taken from the SDL_gfx library version 2.0.3 */
+/* (Rotozoomer) by Andreas Schiffler */
+/* http://www.ferzkopp.net/Software/SDL_gfx-2.0/index.html */
+/* ========================================================================= */
+
+typedef struct
+{
+ Uint8 r;
+ Uint8 g;
+ Uint8 b;
+ Uint8 a;
+} tColorRGBA;
+
+/*
+ -----------------------------------------------------------------------------
+ 32 bit zoomer
+
+ zoomes 32bit RGBA/ABGR 'src' surface to 'dst' surface.
+ -----------------------------------------------------------------------------
+*/
+
+int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface *dst)
+{
+ int x, y, sx, sy, *sax, *say, *csax, *csay, csx, csy;
+ tColorRGBA *sp, *csp, *dp;
+ int sgap, dgap;
+
+ /* variable setup */
+ sx = (int) (65536.0 * (float) src->w / (float) dst->w);
+ sy = (int) (65536.0 * (float) src->h / (float) dst->h);
+
+ /* allocate memory for row increments */
+ sax = (int *)checked_malloc((dst->w + 1) * sizeof(Uint32));
+ say = (int *)checked_malloc((dst->h + 1) * sizeof(Uint32));
+
+ /* precalculate row increments */
+ csx = 0;
+ csax = sax;
+ for (x = 0; x <= dst->w; x++)
+ {
+ *csax = csx;
+ csax++;
+ csx &= 0xffff;
+ csx += sx;
+ }
+
+ csy = 0;
+ csay = say;
+ for (y = 0; y <= dst->h; y++)
+ {
+ *csay = csy;
+ csay++;
+ csy &= 0xffff;
+ csy += sy;
+ }
+
+ /* pointer setup */
+ sp = csp = (tColorRGBA *) src->pixels;
+ dp = (tColorRGBA *) dst->pixels;
+ sgap = src->pitch - src->w * 4;
+ dgap = dst->pitch - dst->w * 4;
+
+ csay = say;
+ for (y = 0; y < dst->h; y++)
+ {
+ sp = csp;
+ csax = sax;
+
+ for (x = 0; x < dst->w; x++)
+ {
+ /* draw */
+ *dp = *sp;
+
+ /* advance source pointers */
+ csax++;
+ sp += (*csax >> 16);
+
+ /* advance destination pointer */
+ dp++;
+ }
+
+ /* advance source pointer */
+ csay++;
+ csp = (tColorRGBA *) ((Uint8 *) csp + (*csay >> 16) * src->pitch);
+
+ /* advance destination pointers */
+ dp = (tColorRGBA *) ((Uint8 *) dp + dgap);
+ }
+
+ free(sax);
+ free(say);
+
+ return 0;
+}
+
+/*
+ -----------------------------------------------------------------------------
+ 8 bit zoomer
+
+ zoomes 8 bit palette/Y 'src' surface to 'dst' surface
+ -----------------------------------------------------------------------------
+*/
+
+int zoomSurfaceY(SDL_Surface * src, SDL_Surface * dst)
+{
+ Uint32 x, y, sx, sy, *sax, *say, *csax, *csay, csx, csy;
+ Uint8 *sp, *dp, *csp;
+ int dgap;
+
+ /* variable setup */
+ sx = (Uint32) (65536.0 * (float) src->w / (float) dst->w);
+ sy = (Uint32) (65536.0 * (float) src->h / (float) dst->h);
+
+ /* allocate memory for row increments */
+ sax = (Uint32 *)checked_malloc(dst->w * sizeof(Uint32));
+ say = (Uint32 *)checked_malloc(dst->h * sizeof(Uint32));
+
+ /* precalculate row increments */
+ csx = 0;
+ csax = sax;
+ for (x = 0; x < dst->w; x++)
+ {
+ csx += sx;
+ *csax = (csx >> 16);
+ csx &= 0xffff;
+ csax++;
+ }
+
+ csy = 0;
+ csay = say;
+ for (y = 0; y < dst->h; y++)
+ {
+ csy += sy;
+ *csay = (csy >> 16);
+ csy &= 0xffff;
+ csay++;
+ }
+
+ csx = 0;
+ csax = sax;
+ for (x = 0; x < dst->w; x++)
+ {
+ csx += (*csax);
+ csax++;
+ }
+
+ csy = 0;
+ csay = say;
+ for (y = 0; y < dst->h; y++)
+ {
+ csy += (*csay);
+ csay++;
+ }
+
+ /* pointer setup */
+ sp = csp = (Uint8 *) src->pixels;
+ dp = (Uint8 *) dst->pixels;
+ dgap = dst->pitch - dst->w;
+
+ /* draw */
+ csay = say;
+ for (y = 0; y < dst->h; y++)
+ {
+ csax = sax;
+ sp = csp;
+ for (x = 0; x < dst->w; x++)
+ {
+ /* draw */
+ *dp = *sp;
+
+ /* advance source pointers */
+ sp += (*csax);
+ csax++;
+
+ /* advance destination pointer */
+ dp++;
+ }
+
+ /* advance source pointer (for row) */
+ csp += ((*csay) * src->pitch);
+ csay++;
+
+ /* advance destination pointers */
+ dp += dgap;
+ }
+
+ free(sax);
+ free(say);
+
+ return 0;
+}
+
+/*
+ -----------------------------------------------------------------------------
+ zoomSurface()
+
+ Zoomes a 32bit or 8bit 'src' surface to newly created 'dst' surface.
+ 'zoomx' and 'zoomy' are scaling factors for width and height.
+ If 'smooth' is 1 then the destination 32bit surface is anti-aliased.
+ If the surface is not 8bit or 32bit RGBA/ABGR it will be converted
+ into a 32bit RGBA format on the fly.
+ -----------------------------------------------------------------------------
+*/
+
+void zoomSurfaceSize(int width, int height, float zoom_x, float zoom_y,
+ int *dst_width, int *dst_height)
+{
+ const float value_limit = 0.001;
+
+ /* sanity check zoom factors */
+ if (zoom_x < value_limit)
+ zoom_x = value_limit;
+ if (zoom_y < value_limit)
+ zoom_y = value_limit;
+
+ /* calculate target size */
+ *dst_width = (int) ((float) width * zoom_x);
+ *dst_height = (int) ((float) height * zoom_y);
+
+ if (*dst_width < 1)
+ *dst_width = 1;
+ if (*dst_height < 1)
+ *dst_height = 1;
+}
+
+SDL_Surface *zoomSurface(SDL_Surface *src, float zoom_x, float zoom_y)
+{
+ SDL_Surface *zoom_src = NULL;
+ SDL_Surface *zoom_dst = NULL;
+ int dst_width, dst_height;
+ boolean is_converted = FALSE;
+ boolean is_32bit;
+ int i;
+
+ if (src == NULL)
+ return NULL;
+
+ /* determine if source surface is 32 bit or 8 bit */
+ is_32bit = (src->format->BitsPerPixel == 32);
+
+ if (is_32bit || src->format->BitsPerPixel == 8)
+ {
+ /* use source surface 'as is' */
+ zoom_src = src;
+ }
+ else
+ {
+ /* new source surface is 32 bit with a defined RGB ordering */
+ zoom_src = SDL_CreateRGBSurface(SDL_SWSURFACE, src->w, src->h, 32,
+ 0x000000ff, 0x0000ff00, 0x00ff0000, 0);
+ SDL_BlitSurface(src, NULL, zoom_src, NULL);
+ is_32bit = TRUE;
+ is_converted = TRUE;
+ }
+
+ /* get size of destination surface */
+ zoomSurfaceSize(zoom_src->w, zoom_src->h, zoom_x, zoom_y,
+ &dst_width, &dst_height);
+
+ /* allocate surface to completely contain the zoomed surface */
+ if (is_32bit)
+ {
+ /* target surface is 32 bit with source RGBA/ABGR ordering */
+ zoom_dst = SDL_CreateRGBSurface(SDL_SWSURFACE, dst_width, dst_height, 32,
+ zoom_src->format->Rmask,
+ zoom_src->format->Gmask,
+ zoom_src->format->Bmask, 0);
+ }
+ else
+ {
+ /* target surface is 8 bit */
+ zoom_dst = SDL_CreateRGBSurface(SDL_SWSURFACE, dst_width, dst_height, 8,
+ 0, 0, 0, 0);
+ }
+
+ /* lock source surface */
+ SDL_LockSurface(zoom_src);
+
+ /* check which kind of surface we have */
+ if (is_32bit)
+ {
+ /* call the 32 bit transformation routine to do the zooming */
+ zoomSurfaceRGBA(zoom_src, zoom_dst);
+ }
+ else
+ {
+ /* copy palette */
+ for (i=0; i < zoom_src->format->palette->ncolors; i++)
+ zoom_dst->format->palette->colors[i] =
+ zoom_src->format->palette->colors[i];
+ zoom_dst->format->palette->ncolors = zoom_src->format->palette->ncolors;
+
+ /* call the 8 bit transformation routine to do the zooming */
+ zoomSurfaceY(zoom_src, zoom_dst);
+ }
+
+ /* unlock source surface */
+ SDL_UnlockSurface(zoom_src);
+
+ /* free temporary surface */
+ if (is_converted)
+ SDL_FreeSurface(zoom_src);
+
+ /* return destination surface */
+ return zoom_dst;
+}
+
+SDL_Surface *SDLZoomSurface(SDL_Surface *src, float zoom_x, float zoom_y)
+{
+ return zoomSurface(src, zoom_x, zoom_y);
+}
+
+
+/* ========================================================================= */
+/* load image to bitmap */
+/* ========================================================================= */
+
Bitmap *SDLLoadImage(char *filename)
{
Bitmap *new_bitmap = CreateBitmapStruct();
/* load image to temporary surface */
if ((sdl_image_tmp = IMG_Load(filename)) == NULL)
- Error(ERR_EXIT, "IMG_Load() failed: %s", SDL_GetError());
+ {
+ SetError("IMG_Load(): %s", SDL_GetError());
+ return NULL;
+ }
/* create native non-transparent surface for current image */
if ((new_bitmap->surface = SDL_DisplayFormat(sdl_image_tmp)) == NULL)
- Error(ERR_EXIT, "SDL_DisplayFormat() failed: %s", SDL_GetError());
+ {
+ SetError("SDL_DisplayFormat(): %s", SDL_GetError());
+ return NULL;
+ }
/* create native transparent surface for current image */
SDL_SetColorKey(sdl_image_tmp, SDL_SRCCOLORKEY,
SDL_MapRGB(sdl_image_tmp->format, 0x00, 0x00, 0x00));
if ((new_bitmap->surface_masked = SDL_DisplayFormat(sdl_image_tmp)) == NULL)
- Error(ERR_EXIT, "SDL_DisplayFormat() failed: %s", SDL_GetError());
+ {
+ SetError("SDL_DisplayFormat(): %s", SDL_GetError());
+ return NULL;
+ }
/* free temporary surface */
SDL_FreeSurface(sdl_image_tmp);
+ new_bitmap->width = new_bitmap->surface->w;
+ new_bitmap->height = new_bitmap->surface->h;
+
return new_bitmap;
}
return;
}
- if (Mix_OpenAudio(DEFAULT_AUDIO_SAMPLE_RATE, AUDIO_S16,
- AUDIO_STEREO_CHANNELS,
+ if (Mix_OpenAudio(DEFAULT_AUDIO_SAMPLE_RATE, MIX_DEFAULT_FORMAT,
+ AUDIO_NUM_CHANNELS_STEREO,
DEFAULT_AUDIO_FRAGMENT_SIZE) < 0)
{
Error(ERR_WARN, "Mix_OpenAudio() failed: %s", SDL_GetError());
audio.loops_available = TRUE;
audio.sound_enabled = TRUE;
- /* determine number of available channels */
- audio.channels = Mix_AllocateChannels(MIX_CHANNELS);
-
- if (!audio.mods_available) /* reserve first channel for music loops */
- {
- if (Mix_ReserveChannels(1) == 1)
- audio.music_channel = 0;
- else
- audio.music_available = FALSE;
- }
+ /* set number of available mixer channels */
+ audio.num_channels = Mix_AllocateChannels(NUM_MIXER_CHANNELS);
+ audio.music_channel = MUSIC_CHANNEL;
+ audio.first_sound_channel = FIRST_SOUND_CHANNEL;
- Mix_Volume(-1, SOUND_MAX_VOLUME);
- Mix_VolumeMusic(SOUND_MAX_VOLUME);
+ Mixer_InitChannels();
}
inline void SDLCloseAudio(void)
Mix_HaltChannel(-1);
Mix_CloseAudio();
+ SDL_QuitSubSystem(SDL_INIT_AUDIO);
+}
+
+
+/* ========================================================================= */
+/* event functions */
+/* ========================================================================= */
+
+inline void SDLNextEvent(Event *event)
+{
+ SDL_WaitEvent(event);
+
+#ifdef FULLSCREEN_BUG
+ if (event->type == EVENT_BUTTONPRESS ||
+ event->type == EVENT_BUTTONRELEASE)
+ {
+ if (((ButtonEvent *)event)->x > video_xoffset)
+ ((ButtonEvent *)event)->x -= video_xoffset;
+ else
+ ((ButtonEvent *)event)->x = 0;
+ if (((ButtonEvent *)event)->y > video_yoffset)
+ ((ButtonEvent *)event)->y -= video_yoffset;
+ else
+ ((ButtonEvent *)event)->y = 0;
+ }
+ else if (event->type == EVENT_MOTIONNOTIFY)
+ {
+ if (((ButtonEvent *)event)->x > video_xoffset)
+ ((ButtonEvent *)event)->x -= video_xoffset;
+ else
+ ((ButtonEvent *)event)->x = 0;
+ if (((ButtonEvent *)event)->y > video_yoffset)
+ ((ButtonEvent *)event)->y -= video_yoffset;
+ else
+ ((ButtonEvent *)event)->y = 0;
+ }
+#endif
+}
+
+
+/* ========================================================================= */
+/* joystick functions */
+/* ========================================================================= */
+
+static SDL_Joystick *sdl_joystick[MAX_PLAYERS] = { NULL, NULL, NULL, NULL };
+static int sdl_js_axis[MAX_PLAYERS][2] = { {0, 0}, {0, 0}, {0, 0}, {0, 0} };
+static int sdl_js_button[MAX_PLAYERS][2] = { {0, 0}, {0, 0}, {0, 0}, {0, 0} };
+
+static boolean SDLOpenJoystick(int nr)
+{
+ if (nr < 0 || nr > MAX_PLAYERS)
+ return FALSE;
+
+ return ((sdl_joystick[nr] = SDL_JoystickOpen(nr)) == NULL ? FALSE : TRUE);
+}
+
+static void SDLCloseJoystick(int nr)
+{
+ if (nr < 0 || nr > MAX_PLAYERS)
+ return;
+
+ SDL_JoystickClose(sdl_joystick[nr]);
+}
+
+static boolean SDLCheckJoystickOpened(int nr)
+{
+ if (nr < 0 || nr > MAX_PLAYERS)
+ return FALSE;
+
+ return (SDL_JoystickOpened(nr) ? TRUE : FALSE);
+}
+
+void HandleJoystickEvent(Event *event)
+{
+ switch(event->type)
+ {
+ case SDL_JOYAXISMOTION:
+ if (event->jaxis.axis < 2)
+ sdl_js_axis[event->jaxis.which][event->jaxis.axis]= event->jaxis.value;
+ break;
+
+ case SDL_JOYBUTTONDOWN:
+ if (event->jbutton.button < 2)
+ sdl_js_button[event->jbutton.which][event->jbutton.button] = TRUE;
+ break;
+
+ case SDL_JOYBUTTONUP:
+ if (event->jbutton.button < 2)
+ sdl_js_button[event->jbutton.which][event->jbutton.button] = FALSE;
+ break;
+
+ default:
+ break;
+ }
+}
+
+void SDLInitJoysticks()
+{
+ static boolean sdl_joystick_subsystem_initialized = FALSE;
+ int i;
+
+ if (!sdl_joystick_subsystem_initialized)
+ {
+ sdl_joystick_subsystem_initialized = TRUE;
+
+ if (SDL_Init(SDL_INIT_JOYSTICK) < 0)
+ {
+ Error(ERR_EXIT, "SDL_Init() failed: %s", SDL_GetError());
+ return;
+ }
+ }
+
+ for (i=0; i<MAX_PLAYERS; i++)
+ {
+ char *device_name = setup.input[i].joy.device_name;
+ int joystick_nr = getJoystickNrFromDeviceName(device_name);
+
+ if (joystick_nr >= SDL_NumJoysticks())
+ joystick_nr = -1;
+
+ /* misuse joystick file descriptor variable to store joystick number */
+ joystick.fd[i] = joystick_nr;
+
+ /* this allows subsequent calls to 'InitJoysticks' for re-initialization */
+ if (SDLCheckJoystickOpened(joystick_nr))
+ SDLCloseJoystick(joystick_nr);
+
+ if (!setup.input[i].use_joystick)
+ continue;
+
+ if (!SDLOpenJoystick(joystick_nr))
+ {
+ Error(ERR_WARN, "cannot open joystick %d", joystick_nr);
+ continue;
+ }
+
+ joystick.status = JOYSTICK_ACTIVATED;
+ }
+}
+
+boolean SDLReadJoystick(int nr, int *x, int *y, boolean *b1, boolean *b2)
+{
+ if (nr < 0 || nr >= MAX_PLAYERS)
+ return FALSE;
+
+ if (x != NULL)
+ *x = sdl_js_axis[nr][0];
+ if (y != NULL)
+ *y = sdl_js_axis[nr][1];
+
+ if (b1 != NULL)
+ *b1 = sdl_js_button[nr][0];
+ if (b2 != NULL)
+ *b2 = sdl_js_button[nr][1];
+
+ return TRUE;
}
#endif /* TARGET_SDL */