X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Flibgame%2Fsystem.c;h=b4ac9ce4e83a3b8bb4e49a954e78f071a6ab4391;hb=efd0d0abb853018aa3ccc3c727b39bd7f5ba679d;hp=b2909afd0f406846619dfbcff0a01cc0bb63118a;hpb=1100054eec7c45458359fd56072341bd661f4a9c;p=rocksndiamonds.git

diff --git a/src/libgame/system.c b/src/libgame/system.c
index b2909afd..b4ac9ce4 100644
--- a/src/libgame/system.c
+++ b/src/libgame/system.c
@@ -1,7 +1,7 @@
 /***********************************************************
 * Artsoft Retro-Game Library                               *
 *----------------------------------------------------------*
-* (c) 1994-2000 Artsoft Entertainment                      *
+* (c) 1994-2001 Artsoft Entertainment                      *
 *               Holger Schemel                             *
 *               Detmolder Strasse 189                      *
 *               33604 Bielefeld                            *
@@ -12,6 +12,7 @@
 ***********************************************************/
 
 #include <string.h>
+#include <signal.h>
 
 #include "platform.h"
 
@@ -56,7 +57,7 @@ int		FrameCounter = 0;
 
 
 /* ========================================================================= */
-/* init functions                                                            */
+/* init/close functions                                                      */
 /* ========================================================================= */
 
 void InitCommandName(char *argv0)
@@ -68,6 +69,15 @@ void InitCommandName(char *argv0)
 void InitExitFunction(void (*exit_function)(int))
 {
   program.exit_function = exit_function;
+
+  /* set signal handlers to custom exit function */
+  signal(SIGINT, exit_function);
+  signal(SIGTERM, exit_function);
+
+#if defined(TARGET_SDL)
+  /* set exit function to automatically cleanup SDL stuff after exit() */
+  atexit(SDL_Quit);
+#endif
 }
 
 void InitPlatformDependantStuff(void)
@@ -75,6 +85,23 @@ void InitPlatformDependantStuff(void)
 #if defined(PLATFORM_MSDOS)
   _fmode = O_BINARY;
 #endif
+
+#if !defined(PLATFORM_UNIX)
+  program.userdata_directory = "userdata";
+  initErrorFile();
+#endif
+
+#if defined(TARGET_SDL)
+  if (SDL_Init(SDL_INIT_EVENTTHREAD | SDL_INIT_NOPARACHUTE) < 0)
+    Error(ERR_EXIT, "SDL_Init() failed: %s", SDL_GetError());
+#endif
+}
+
+void ClosePlatformDependantStuff(void)
+{
+#if !defined(PLATFORM_UNIX)
+  dumpErrorFile();
+#endif
 }
 
 void InitProgramInfo(char *unix_userdata_directory, char *program_title,
@@ -152,13 +179,25 @@ inline static int GetRealDepth(int depth)
 
 inline void InitVideoDisplay(void)
 {
-#ifdef TARGET_SDL
+#if defined(TARGET_SDL)
   SDLInitVideoDisplay();
 #else
   X11InitVideoDisplay();
 #endif
 }
 
+inline void CloseVideoDisplay(void)
+{
+  KeyboardAutoRepeatOn();
+
+#if defined(TARGET_SDL)
+  SDL_QuitSubSystem(SDL_INIT_VIDEO);
+#else
+  if (display)
+    XCloseDisplay(display);
+#endif
+}
+
 inline void InitVideoBuffer(DrawBuffer **backbuffer, DrawWindow **window,
 			    int width, int height, int depth,
 			    boolean fullscreen)
@@ -336,7 +375,7 @@ inline void DrawSimpleWhiteLine(Bitmap *bitmap, int from_x, int from_y,
 				int to_x, int to_y)
 {
 #ifdef TARGET_SDL
-  SDLDrawSimpleLine(bitmap->surface, from_x, from_y, to_x, to_y, 0xffffff);
+  SDLDrawSimpleLine(bitmap, from_x, from_y, to_x, to_y, 0xffffff);
 #else
   XSetForeground(display, bitmap->gc, WhitePixel(display, screen));
   XDrawLine(display, bitmap->drawable, bitmap->gc, from_x, from_y, to_x, to_y);
@@ -364,8 +403,8 @@ inline void DrawLine(Bitmap *bitmap, int from_x, int from_y,
 	continue;
 
 #if defined(TARGET_SDL)
-      sge_Line(bitmap->surface,
-	       from_x + dx, from_y + dy, to_x + dx, to_y + dy, pixel);
+      SDLDrawLine(bitmap,
+		  from_x + dx, from_y + dy, to_x + dx, to_y + dy, pixel);
 #elif defined(TARGET_ALLEGRO)
       AllegroDrawLine(bitmap->drawable, from_x + dx, from_y + dy,
 		      to_x + dx, to_y + dy, pixel);
@@ -399,6 +438,26 @@ inline void DrawLines(Bitmap *bitmap, struct XY *points, int num_points,
 #endif
 }
 
+inline Pixel GetPixel(Bitmap *bitmap, int x, int y)
+{
+#if defined(TARGET_SDL)
+  return SDLGetPixel(bitmap, x, y);
+#elif defined(TARGET_ALLEGRO)
+  return AllegroGetPixel(bitmap->drawable, x, y);
+#else
+  unsigned long pixel_value;
+  XImage *pixel_image;
+
+  pixel_image = XGetImage(display, bitmap->drawable, x, y, 1, 1,
+			  AllPlanes, ZPixmap);
+  pixel_value = XGetPixel(pixel_image, 0, 0);
+
+  XDestroyImage(pixel_image);
+
+  return pixel_value;
+#endif
+}
+
 inline Pixel GetPixelFromRGB(Bitmap *bitmap, unsigned int color_r,
 			     unsigned int color_g, unsigned int color_b)
 {
@@ -406,6 +465,8 @@ inline Pixel GetPixelFromRGB(Bitmap *bitmap, unsigned int color_r,
 
 #if defined(TARGET_SDL)
   pixel = SDL_MapRGB(bitmap->surface->format, color_r, color_g, color_b);
+#elif defined(TARGET_ALLEGRO)
+  pixel = AllegroAllocColorCell(color_r << 8, color_g << 8, color_b << 8);
 #elif defined(TARGET_X11_NATIVE)
   XColor xcolor;
 
@@ -452,7 +513,8 @@ inline void KeyboardAutoRepeatOn(void)
 		      SDL_DEFAULT_REPEAT_INTERVAL / 2);
   SDL_EnableUNICODE(1);
 #else
-  XAutoRepeatOn(display);
+  if (display)
+    XAutoRepeatOn(display);
 #endif
 }
 
@@ -462,7 +524,8 @@ inline void KeyboardAutoRepeatOff(void)
   SDL_EnableKeyRepeat(0, SDL_DEFAULT_REPEAT_INTERVAL);
   SDL_EnableUNICODE(0);
 #else
-  XAutoRepeatOff(display);
+  if (display)
+    XAutoRepeatOff(display);
 #endif
 }
 
@@ -515,55 +578,66 @@ inline boolean ChangeVideoModeIfNeeded(boolean fullscreen)
   return fullscreen;
 }
 
+Bitmap *LoadImage(char *basename)
+{
+  Bitmap *new_bitmap;
+  char *filename = getPath3(options.ro_base_directory, GRAPHICS_DIRECTORY,
+			    basename);
+
+#if defined(TARGET_SDL)
+  new_bitmap = SDLLoadImage(filename);
+#else
+  new_bitmap = X11LoadImage(filename);
+#endif
+
+  free(filename);
+
+  return new_bitmap;
+}
+
 
 /* ========================================================================= */
 /* audio functions                                                           */
 /* ========================================================================= */
 
-inline boolean OpenAudio(struct AudioSystemInfo *audio)
+inline void OpenAudio(void)
 {
-  audio->sound_available = FALSE;
-  audio->loops_available = FALSE;
-  audio->sound_enabled = FALSE;
-  audio->soundserver_pipe[0] = audio->soundserver_pipe[1] = 0;
-  audio->soundserver_pid = 0;
-  audio->device_name = NULL;
-  audio->device_fd = 0;
+  /* always start with reliable default values */
+  audio.sound_available = FALSE;
+  audio.music_available = FALSE;
+  audio.loops_available = FALSE;
+  audio.mods_available = FALSE;
+  audio.sound_enabled = FALSE;
+
+  audio.soundserver_pipe[0] = audio.soundserver_pipe[1] = 0;
+  audio.soundserver_pid = 0;
+  audio.device_name = NULL;
+  audio.device_fd = 0;
+
+  audio.channels = 0;
+  audio.music_channel = 0;
+  audio.music_nr = 0;
 
 #if defined(TARGET_SDL)
-  if (SDLOpenAudio())
-  {
-    audio->sound_available = TRUE;
-    audio->loops_available = TRUE;
-    audio->sound_enabled = TRUE;
-  }
+  SDLOpenAudio();
 #elif defined(PLATFORM_MSDOS)
-  if (MSDOSOpenAudio())
-  {
-    audio->sound_available = TRUE;
-    audio->loops_available = TRUE;
-    audio->sound_enabled = TRUE;
-  }
+  MSDOSOpenAudio();
 #elif defined(PLATFORM_UNIX)
-  UnixOpenAudio(audio);
+  UnixOpenAudio();
 #endif
-
-  return audio->sound_available;
 }
 
-inline void CloseAudio(struct AudioSystemInfo *audio)
+inline void CloseAudio(void)
 {
 #if defined(TARGET_SDL)
   SDLCloseAudio();
 #elif defined(PLATFORM_MSDOS)
   MSDOSCloseAudio();
 #elif defined(PLATFORM_UNIX)
-  UnixCloseAudio(audio);
+  UnixCloseAudio();
 #endif
 
-  audio->sound_available = FALSE;
-  audio->loops_available = FALSE;
-  audio->sound_enabled = FALSE;
+  audio.sound_enabled = FALSE;
 }
 
 inline void SetAudioMode(boolean enabled)
@@ -599,7 +673,7 @@ inline boolean PendingEvent(void)
 inline void NextEvent(Event *event)
 {
 #ifdef TARGET_SDL
-  SDL_WaitEvent(event);
+  SDLNextEvent(event);
 #else
   XNextEvent(display, event);
 #endif