rnd-20001203-1-src

[rocksndiamonds.git] / src / libgame / sdl.c

diff --git a/src/libgame/sdl.c b/src/libgame/sdl.c
index 8e2ec948071686a17ba5f047c1edf16e28117bc0..2d6d16b5072df53ae1e1d64ac8e415b2e25c1a09 100644 (file)
--- a/src/libgame/sdl.c
+++ b/src/libgame/sdl.c
@@ -16,24 +16,28 @@
 
 #ifdef TARGET_SDL
 
-inline void SDLInitBufferedDisplay(DrawBuffer *backbuffer, DrawWindow *window)
+inline void SDLInitVideoDisplay(void)
 {
   /* initialize SDL video */
   if (SDL_Init(SDL_INIT_VIDEO) < 0)
     Error(ERR_EXIT, "SDL_Init() failed: %s", SDL_GetError());
 
-  /* automatically cleanup SDL stuff after exit() */
+  /* 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,
+                              boolean fullscreen)
+{
   /* open SDL video output device (window or fullscreen mode) */
-  if (!SDLSetVideoMode(backbuffer))
+  if (!SDLSetVideoMode(backbuffer, fullscreen))
     Error(ERR_EXIT, "setting video mode failed");
 
   /* set window and icon title */
-  SDL_WM_SetCaption(WINDOW_TITLE_STRING, WINDOW_TITLE_STRING);
-
-  /* create additional buffer for double-buffering */
-  pix[PIX_DB_BACK] = CreateBitmap(WIN_XSIZE, WIN_YSIZE, DEFAULT_DEPTH);
+  SDL_WM_SetCaption(program.window_title, program.window_title);
 
   /* SDL cannot directly draw to the visible video framebuffer like X11,
      but always uses a backbuffer, which is then blitted to the visible
@@ -48,13 +52,14 @@ inline void SDLInitBufferedDisplay(DrawBuffer *backbuffer, DrawWindow *window)
      buffer 'window' at the same size as the SDL backbuffer. Although it
      should never be drawn to directly, it would do no harm nevertheless. */
 
-  *window = pix[PIX_DB_BACK];          /* 'window' is only symbolic buffer */
-  pix[PIX_DB_BACK] = *backbuffer;      /* 'backbuffer' is SDL screen buffer */
+  /* create additional (symbolic) buffer for double-buffering */
+  *window = CreateBitmap(video.width, video.height, video.depth);
 }
 
 inline boolean SDLSetVideoMode(DrawBuffer *backbuffer, boolean fullscreen)
 {
   boolean success = TRUE;
+  int surface_flags = SDL_HWSURFACE | (fullscreen ? SDL_FULLSCREEN : 0);
 
   if (fullscreen && !video.fullscreen_enabled && video.fullscreen_available)
   {
@@ -62,9 +67,8 @@ inline boolean SDLSetVideoMode(DrawBuffer *backbuffer, boolean fullscreen)
     DrawWindow window_old = *backbuffer;
     DrawWindow window_new;
 
-    if ((window_new = SDL_SetVideoMode(WIN_XSIZE, WIN_YSIZE, WIN_SDL_DEPTH,
-                                      SDL_HWSURFACE|SDL_FULLSCREEN))
-       == NULL)
+    if ((window_new = SDL_SetVideoMode(video.width, video.height, video.depth,
+                                      surface_flags)) == NULL)
     {
       /* switching display to fullscreen mode failed */
       Error(ERR_WARN, "SDL_SetVideoMode() failed: %s", SDL_GetError());
@@ -90,9 +94,8 @@ inline boolean SDLSetVideoMode(DrawBuffer *backbuffer, boolean fullscreen)
     DrawWindow window_old = *backbuffer;
     DrawWindow window_new;
 
-    if ((window_new = SDL_SetVideoMode(WIN_XSIZE, WIN_YSIZE, WIN_SDL_DEPTH,
-                                      SDL_HWSURFACE))
-       == NULL)
+    if ((window_new = SDL_SetVideoMode(video.width, video.height, video.depth,
+                                      surface_flags)) == NULL)
     {
       /* switching display to window mode failed -- should not happen */
       Error(ERR_WARN, "SDL_SetVideoMode() failed: %s", SDL_GetError());
@@ -113,12 +116,12 @@ inline boolean SDLSetVideoMode(DrawBuffer *backbuffer, boolean fullscreen)
   return success;
 }
 
-inline void SDLCopyArea(SDL_Surface *src_surface, SDL_Surface *dst_surface,
+inline void SDLCopyArea(Bitmap src_bitmap, Bitmap dst_bitmap,
                        int src_x, int src_y,
                        int width, int height,
-                       int dst_x, int dst_y)
+                       int dst_x, int dst_y, int copy_mode)
 {
-  SDL_Surface *surface = (dst_surface == window ? backbuffer : dst_surface);
+  Bitmap real_dst_bitmap = (dst_bitmap == window ? backbuffer : dst_bitmap);
   SDL_Rect src_rect, dst_rect;
 
   src_rect.x = src_x;
@@ -131,17 +134,19 @@ inline void SDLCopyArea(SDL_Surface *src_surface, SDL_Surface *dst_surface,
   dst_rect.w = width;
   dst_rect.h = height;
 
-  if (src_surface != backbuffer || dst_surface != window)
-    SDL_BlitSurface(src_surface, &src_rect, surface, &dst_rect);
+  if (src_bitmap != backbuffer || dst_bitmap != window)
+    SDL_BlitSurface((copy_mode == SDLCOPYAREA_MASKED ?
+                    src_bitmap->surface_masked : src_bitmap->surface),
+                   &src_rect, real_dst_bitmap->surface, &dst_rect);
 
-  if (dst_surface == window)
-    SDL_UpdateRect(backbuffer, dst_x, dst_y, width, height);
+  if (dst_bitmap == window)
+    SDL_UpdateRect(backbuffer->surface, dst_x, dst_y, width, height);
 }
 
-inline void SDLFillRectangle(SDL_Surface *dst_surface, int x, int y,
+inline void SDLFillRectangle(Bitmap dst_bitmap, int x, int y,
                             int width, int height, unsigned int color)
 {
-  SDL_Surface *surface = (dst_surface == window ? backbuffer : dst_surface);
+  Bitmap real_dst_bitmap = (dst_bitmap == window ? backbuffer : dst_bitmap);
   SDL_Rect rect;
   unsigned int color_r = (color >> 16) && 0xff;
   unsigned int color_g = (color >>  8) && 0xff;
@@ -152,11 +157,12 @@ inline void SDLFillRectangle(SDL_Surface *dst_surface, int x, int y,
   rect.w = width;
   rect.h = height;
 
-  SDL_FillRect(surface, &rect,
-              SDL_MapRGB(surface->format, color_r, color_g, color_b));
+  SDL_FillRect(real_dst_bitmap->surface, &rect,
+              SDL_MapRGB(real_dst_bitmap->surface->format,
+                         color_r, color_g, color_b));
 
-  if (dst_surface == window)
-    SDL_UpdateRect(backbuffer, x, y, width, height);
+  if (dst_bitmap == window)
+    SDL_UpdateRect(backbuffer->surface, x, y, width, height);
 }
 
 inline void SDLDrawSimpleLine(SDL_Surface *surface, int from_x, int from_y,