***********************************************************/
#include "system.h"
+#include "sound.h"
#include "misc.h"
inline void SDLInitVideoDisplay(void)
{
/* initialize SDL video */
- if (SDL_Init(SDL_INIT_VIDEO) < 0)
- Error(ERR_EXIT, "SDL_Init() failed: %s", SDL_GetError());
+ if (SDL_InitSubSystem(SDL_INIT_VIDEO) < 0)
+ Error(ERR_EXIT, "SDL_InitSubSystem() failed: %s", SDL_GetError());
/* set default SDL depth */
video.default_depth = SDL_GetVideoInfo()->vfmt->BitsPerPixel;
-
- /* set exit function to automatically cleanup SDL stuff after exit() */
- atexit(SDL_Quit);
}
inline void SDLInitVideoBuffer(DrawBuffer **backbuffer, DrawWindow **window,
sge_Line(Surface, x1, y1, x2, y2, SDL_MapRGB(Surface->format, R, G, B));
}
+Bitmap *SDLLoadImage(char *filename)
+{
+ Bitmap *new_bitmap = CreateBitmapStruct();
+ SDL_Surface *sdl_image_tmp;
+
+ /* load image to temporary surface */
+ if ((sdl_image_tmp = IMG_Load(filename)) == NULL)
+ Error(ERR_EXIT, "IMG_Load() failed: %s", SDL_GetError());
+
+ /* 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());
+
+ /* 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());
+
+ /* free temporary surface */
+ SDL_FreeSurface(sdl_image_tmp);
+
+ return new_bitmap;
+}
+
/* ========================================================================= */
/* audio functions */
/* ========================================================================= */
-inline boolean SDLOpenAudio(void)
+inline void SDLOpenAudio(void)
{
- if (SDL_Init(SDL_INIT_AUDIO) < 0)
+ if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0)
{
- Error(ERR_WARN, "SDL_Init() failed: %s", SDL_GetError());
- return FALSE;
+ Error(ERR_WARN, "SDL_InitSubSystem() failed: %s", SDL_GetError());
+ return;
}
- if (Mix_OpenAudio(22050, AUDIO_S16, 2, 512) < 0)
+ if (Mix_OpenAudio(DEFAULT_AUDIO_SAMPLE_RATE, AUDIO_S16,
+ AUDIO_STEREO_CHANNELS,
+ DEFAULT_AUDIO_FRAGMENT_SIZE) < 0)
{
Error(ERR_WARN, "Mix_OpenAudio() failed: %s", SDL_GetError());
- return FALSE;
+ return;
}
- Mix_Volume(-1, SDL_MIX_MAXVOLUME / 4);
- Mix_VolumeMusic(SDL_MIX_MAXVOLUME / 4);
+ audio.sound_available = TRUE;
+ audio.music_available = TRUE;
+ 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;
+ }
- return TRUE;
+ Mix_Volume(-1, SOUND_MAX_VOLUME);
+ Mix_VolumeMusic(SOUND_MAX_VOLUME);
}
inline void SDLCloseAudio(void)