static void InitSoundServer(void);
static void InitWindow(int, char **);
static void InitGfx(void);
+static void InitGfxBackground(void);
static void LoadGfx(int, struct PictureFileInfo *);
static void InitGadgets(void);
static void InitElementProperties(void);
InitLevelInfo();
InitGadgets(); /* needs to know number of level series */
+ InitGfxBackground();
DrawMainMenu();
InitNetworkServer();
#ifdef USE_SDL_LIBRARY
/* open SDL video output device (window or fullscreen mode) */
#if 0
- if ((window = SDL_SetVideoMode(WIN_XSIZE, WIN_YSIZE, WIN_SDL_DEPTH,
+ if ((backbuffer = SDL_SetVideoMode(WIN_XSIZE, WIN_YSIZE, WIN_SDL_DEPTH,
SDL_HWSURFACE))
== NULL)
Error(ERR_EXIT, "SDL_SetVideoMode() failed: %s", SDL_GetError());
void InitGfx()
{
- int i,j;
+ int i, j;
#ifdef USE_SDL_LIBRARY
SDL_Surface *sdl_image_tmp;
{ -1, 0 }
};
-#if DEBUG_TIMING
- debug_print_timestamp(0, NULL); /* initialize timestamp function */
-#endif
-
-#ifdef DEBUG
-#if 0
- printf("Test: Loading RocksFont2.pcx ...\n");
- LoadGfx(PIX_SMALLFONT,&test_pic1);
- printf("Test: Done.\n");
- printf("Test: Loading mouse.pcx ...\n");
- LoadGfx(PIX_SMALLFONT,&test_pic2);
- printf("Test: Done.\n");
-#endif
-#endif
-
- LoadGfx(PIX_SMALLFONT, &pic[PIX_SMALLFONT]);
- DrawInitText(WINDOW_TITLE_STRING, 20, FC_YELLOW);
- DrawInitText(WINDOW_SUBTITLE_STRING, 50, FC_RED);
-#ifdef MSDOS
- DrawInitText(PROGRAM_DOS_PORT_STRING, 210, FC_BLUE);
- rest(200);
-#endif /* MSDOS */
- DrawInitText("Loading graphics:",120,FC_GREEN);
-
- for(i=0; i<NUM_PICTURES; i++)
- if (i != PIX_SMALLFONT)
- LoadGfx(i,&pic[i]);
-
-#if DEBUG_TIMING
- debug_print_timestamp(0, "SUMMARY LOADING ALL GRAPHICS:");
-#endif
+ /* create additional image buffers for double-buffering */
#ifdef USE_SDL_LIBRARY
+
/* create some native image surfaces for double-buffer purposes */
/* create double-buffer surface for background image */
SDL_FreeSurface(sdl_image_tmp);
+ /* SDL cannot directly draw to the visible video framebuffer like X11,
+ but always uses a backbuffer, which is then blitted to the visible
+ video framebuffer with 'SDL_UpdateRect' (or replaced with the current
+ visible video framebuffer with 'SDL_Flip', if the hardware supports
+ this). Therefore do not use an additional backbuffer for drawing, but
+ use a symbolic buffer (distinguishable from the SDL backbuffer) called
+ 'window', which indicates that the SDL backbuffer should be updated to
+ the visible video framebuffer when attempting to blit to it.
+
+ For convenience, it seems to be a good idea to create this symbolic
+ 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 */
+
+#else /* !USE_SDL_LIBRARY */
+
+ pix[PIX_DB_BACK] = XCreatePixmap(display, window,
+ WIN_XSIZE,WIN_YSIZE,
+ XDefaultDepth(display,screen));
+ pix[PIX_DB_DOOR] = XCreatePixmap(display, window,
+ 3*DXSIZE,DYSIZE+VYSIZE,
+ XDefaultDepth(display,screen));
+ pix[PIX_DB_FIELD] = XCreatePixmap(display, window,
+ FXSIZE,FYSIZE,
+ XDefaultDepth(display,screen));
+
+ if (!pix[PIX_DB_BACK] || !pix[PIX_DB_DOOR] || !pix[PIX_DB_FIELD])
+ Error(ERR_EXIT, "cannot create additional pixmaps");
+
+#endif /* !USE_SDL_LIBRARY */
+
+#if DEBUG_TIMING
+ debug_print_timestamp(0, NULL); /* initialize timestamp function */
+#endif
+
+#ifdef DEBUG
+#if 0
+ printf("Test: Loading RocksFont2.pcx ...\n");
+ LoadGfx(PIX_SMALLFONT,&test_pic1);
+ printf("Test: Done.\n");
+ printf("Test: Loading mouse.pcx ...\n");
+ LoadGfx(PIX_SMALLFONT,&test_pic2);
+ printf("Test: Done.\n");
+#endif
+#endif
+
+ LoadGfx(PIX_SMALLFONT, &pic[PIX_SMALLFONT]);
+ DrawInitText(WINDOW_TITLE_STRING, 20, FC_YELLOW);
+ DrawInitText(WINDOW_SUBTITLE_STRING, 50, FC_RED);
+#ifdef MSDOS
+ DrawInitText(PROGRAM_DOS_PORT_STRING, 210, FC_BLUE);
+ rest(200);
+#endif /* MSDOS */
+ DrawInitText("Loading graphics:",120,FC_GREEN);
+
+ for(i=0; i<NUM_PICTURES; i++)
+ if (i != PIX_SMALLFONT)
+ LoadGfx(i,&pic[i]);
+
+#if DEBUG_TIMING
+ debug_print_timestamp(0, "SUMMARY LOADING ALL GRAPHICS:");
+#endif
+
+ /* create additional image buffers for masking of graphics */
+
+#ifdef USE_SDL_LIBRARY
+
/* initialize surface array to 'NULL' */
for(i=0; i<NUM_TILES; i++)
tile_masked[i] = NULL;
#else /* !USE_SDL_LIBRARY */
- pix[PIX_DB_BACK] = XCreatePixmap(display, window,
- WIN_XSIZE,WIN_YSIZE,
- XDefaultDepth(display,screen));
- pix[PIX_DB_DOOR] = XCreatePixmap(display, window,
- 3*DXSIZE,DYSIZE+VYSIZE,
- XDefaultDepth(display,screen));
- pix[PIX_DB_FIELD] = XCreatePixmap(display, window,
- FXSIZE,FYSIZE,
- XDefaultDepth(display,screen));
-
+ /* create graphic context structures needed for clipping */
clip_gc_values.graphics_exposures = False;
clip_gc_valuemask = GCGraphicsExposures;
copy_clipmask_gc =
- XCreateGC(display,clipmask[PIX_BACK],clip_gc_valuemask,&clip_gc_values);
+ XCreateGC(display, clipmask[PIX_BACK], clip_gc_valuemask, &clip_gc_values);
clip_gc_values.graphics_exposures = False;
clip_gc_valuemask = GCGraphicsExposures;
tile_clip_gc =
- XCreateGC(display,window,clip_gc_valuemask,&clip_gc_values);
+ XCreateGC(display, window, clip_gc_valuemask, &clip_gc_values);
+
+ for(i=0; i<NUM_BITMAPS; i++)
+ {
+ if (clipmask[i])
+ {
+ clip_gc_values.graphics_exposures = False;
+ clip_gc_values.clip_mask = clipmask[i];
+ clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
+ clip_gc[i] = XCreateGC(display,window,clip_gc_valuemask,&clip_gc_values);
+ }
+ }
/* initialize pixmap array to Pixmap 'None' */
for(i=0; i<NUM_TILES; i++)
}
}
- if (!pix[PIX_DB_BACK] || !pix[PIX_DB_DOOR])
- Error(ERR_EXIT, "cannot create additional pixmaps");
-
- for(i=0; i<NUM_BITMAPS; i++)
- {
- if (clipmask[i])
- {
- clip_gc_values.graphics_exposures = False;
- clip_gc_values.clip_mask = clipmask[i];
- clip_gc_valuemask = GCGraphicsExposures | GCClipMask;
- clip_gc[i] = XCreateGC(display,window,clip_gc_valuemask,&clip_gc_values);
- }
- }
-
#endif /* !USE_SDL_LIBRARY */
+}
+
+void InitGfxBackground()
+{
+ int x, y;
drawto = backbuffer = pix[PIX_DB_BACK];
fieldbuffer = pix[PIX_DB_FIELD];
SetDrawtoField(DRAW_BACKBUFFER);
BlitBitmap(pix[PIX_BACK], backbuffer, 0,0, WIN_XSIZE,WIN_YSIZE, 0,0);
- ClearRectangle(pix[PIX_DB_BACK], REAL_SX,REAL_SY, FULL_SXSIZE,FULL_SYSIZE);
+ ClearRectangle(backbuffer, REAL_SX,REAL_SY, FULL_SXSIZE,FULL_SYSIZE);
ClearRectangle(pix[PIX_DB_DOOR], 0,0, 3*DXSIZE,DYSIZE+VYSIZE);
- for(i=0; i<MAX_BUF_XSIZE; i++)
- for(j=0; j<MAX_BUF_YSIZE; j++)
- redraw[i][j] = 0;
+ for(x=0; x<MAX_BUF_XSIZE; x++)
+ for(y=0; y<MAX_BUF_YSIZE; y++)
+ redraw[x][y] = 0;
redraw_tiles = 0;
redraw_mask = REDRAW_ALL;
}
projects / rocksndiamonds.git / blobdiff