#include "system.h"
#include "sound.h"
+#include "joystick.h"
#include "misc.h"
}
#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 */
/* 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;
}
}
if (Mix_OpenAudio(DEFAULT_AUDIO_SAMPLE_RATE, AUDIO_S16,
- AUDIO_STEREO_CHANNELS,
+ 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)
#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 */
projects / rocksndiamonds.git / blobdiff