diff test/testwin.c @ 1662:782fd950bd46 SDL-1.3

Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid. The code is now run through a consistent indent format: indent -i4 -nut -nsc -br -ce The headers are being converted to automatically generate doxygen documentation.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 28 May 2006 13:04:16 +0000
parents 14717b52abc0
children 4da1ee79c9af
line wrap: on
line diff
--- a/test/testwin.c	Sun May 21 17:27:13 2006 +0000
+++ b/test/testwin.c	Sun May 28 13:04:16 2006 +0000
@@ -12,366 +12,344 @@
 #include "SDL.h"
 
 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
-static void quit(int rc)
+static void
+quit (int rc)
 {
-	SDL_Quit();
-	exit(rc);
+    SDL_Quit ();
+    exit (rc);
 }
 
-void DrawPict(SDL_Surface *screen, char *bmpfile,
-					int speedy, int flip, int nofade)
+void
+DrawPict (SDL_Surface * screen, char *bmpfile,
+          int speedy, int flip, int nofade)
 {
-	SDL_Surface *picture;
-	SDL_Rect dest, update;
-	int i, centered;
-	int ncolors;
-	SDL_Color *colors, *cmap;
+    SDL_Surface *picture;
+    SDL_Rect dest, update;
+    int i, centered;
+    int ncolors;
+    SDL_Color *colors, *cmap;
 
-	/* Load the image into a surface */
-	if ( bmpfile == NULL ) {
-		bmpfile = "sample.bmp";		/* Sample image */
-	}
-fprintf(stderr, "Loading picture: %s\n", bmpfile);
-	picture = SDL_LoadBMP(bmpfile);
-	if ( picture == NULL ) {
-		fprintf(stderr, "Couldn't load %s: %s\n", bmpfile,
-							SDL_GetError());
-		return;
-	}
+    /* Load the image into a surface */
+    if (bmpfile == NULL) {
+        bmpfile = "sample.bmp"; /* Sample image */
+    }
+    fprintf (stderr, "Loading picture: %s\n", bmpfile);
+    picture = SDL_LoadBMP (bmpfile);
+    if (picture == NULL) {
+        fprintf (stderr, "Couldn't load %s: %s\n", bmpfile, SDL_GetError ());
+        return;
+    }
 
-	/* Set the display colors -- on a hicolor display this is a no-op */
-	if ( picture->format->palette ) {
-		ncolors = picture->format->palette->ncolors;
-		colors  = (SDL_Color *)malloc(ncolors*sizeof(SDL_Color));
-		cmap    = (SDL_Color *)malloc(ncolors*sizeof(SDL_Color));
-		memcpy(colors, picture->format->palette->colors,
-						ncolors*sizeof(SDL_Color));
-	} else {
-		int       r, g, b;
+    /* Set the display colors -- on a hicolor display this is a no-op */
+    if (picture->format->palette) {
+        ncolors = picture->format->palette->ncolors;
+        colors = (SDL_Color *) malloc (ncolors * sizeof (SDL_Color));
+        cmap = (SDL_Color *) malloc (ncolors * sizeof (SDL_Color));
+        memcpy (colors, picture->format->palette->colors,
+                ncolors * sizeof (SDL_Color));
+    } else {
+        int r, g, b;
 
-		/* Allocate 256 color palette */
-		ncolors = 256;
-		colors  = (SDL_Color *)malloc(ncolors*sizeof(SDL_Color));
-		cmap    = (SDL_Color *)malloc(ncolors*sizeof(SDL_Color));
+        /* Allocate 256 color palette */
+        ncolors = 256;
+        colors = (SDL_Color *) malloc (ncolors * sizeof (SDL_Color));
+        cmap = (SDL_Color *) malloc (ncolors * sizeof (SDL_Color));
 
-		/* Set a 3,3,2 color cube */
-		for ( r=0; r<8; ++r ) {
-			for ( g=0; g<8; ++g ) {
-				for ( b=0; b<4; ++b ) {
-					i = ((r<<5)|(g<<2)|b);
-					colors[i].r = r<<5;
-					colors[i].g = g<<5;
-					colors[i].b = b<<6;
-				}
-			}
-		}
-	}
-NOTICE("testwin: setting colors\n");
-	if ( ! SDL_SetColors(screen, colors, 0, ncolors) &&
-				(screen->format->palette != NULL) ) {
-		fprintf(stderr,
-"Warning: Couldn't set all of the colors, but SDL will map the image\n"
-"         (colormap fading will suffer - try the -warp option)\n"
-		);
-	}
+        /* Set a 3,3,2 color cube */
+        for (r = 0; r < 8; ++r) {
+            for (g = 0; g < 8; ++g) {
+                for (b = 0; b < 4; ++b) {
+                    i = ((r << 5) | (g << 2) | b);
+                    colors[i].r = r << 5;
+                    colors[i].g = g << 5;
+                    colors[i].b = b << 6;
+                }
+            }
+        }
+    }
+    NOTICE ("testwin: setting colors\n");
+    if (!SDL_SetColors (screen, colors, 0, ncolors) &&
+        (screen->format->palette != NULL)) {
+        fprintf (stderr,
+                 "Warning: Couldn't set all of the colors, but SDL will map the image\n"
+                 "         (colormap fading will suffer - try the -warp option)\n");
+    }
 
-	/* Set the screen to black (not really necessary) */
-	if ( SDL_LockSurface(screen) == 0 ) {
-		Uint32 black;
-		Uint8 *pixels;
+    /* Set the screen to black (not really necessary) */
+    if (SDL_LockSurface (screen) == 0) {
+        Uint32 black;
+        Uint8 *pixels;
+
+        black = SDL_MapRGB (screen->format, 0, 0, 0);
+        pixels = (Uint8 *) screen->pixels;
+        for (i = 0; i < screen->h; ++i) {
+            memset (pixels, black, screen->w * screen->format->BytesPerPixel);
+            pixels += screen->pitch;
+        }
+        SDL_UnlockSurface (screen);
+        SDL_UpdateRect (screen, 0, 0, 0, 0);
+    }
 
-		black = SDL_MapRGB(screen->format, 0, 0, 0);
-		pixels = (Uint8 *)screen->pixels;
-		for ( i=0; i<screen->h; ++i ) {
-			memset(pixels, black,
-				screen->w*screen->format->BytesPerPixel);
-			pixels += screen->pitch;
-		}
-		SDL_UnlockSurface(screen);
-		SDL_UpdateRect(screen, 0, 0, 0, 0);
-	}
-	
-	/* Display the picture */
-	if ( speedy ) {
-		SDL_Surface *displayfmt;
+    /* Display the picture */
+    if (speedy) {
+        SDL_Surface *displayfmt;
 
-fprintf(stderr, "Converting picture\n");
-		displayfmt = SDL_DisplayFormat(picture);
-		if ( displayfmt == NULL ) {
-			fprintf(stderr,
-				"Couldn't convert image: %s\n", SDL_GetError());
-			goto done;
-		}
-		SDL_FreeSurface(picture);
-		picture = displayfmt;
-	}
-	printf("(image surface located in %s memory)\n", 
-			(picture->flags&SDL_HWSURFACE) ? "video" : "system");
-	centered = (screen->w - picture->w)/2;
-	if ( centered < 0 ) {
-		centered = 0;
-	}
-	dest.y = (screen->h - picture->h)/2;
-	dest.w = picture->w;
-	dest.h = picture->h;
-NOTICE("testwin: moving image\n");
-	for ( i=0; i<=centered; ++i ) {
-		dest.x = i;
-		update = dest;
-		if ( SDL_BlitSurface(picture, NULL, screen, &update) < 0 ) {
-			fprintf(stderr, "Blit failed: %s\n", SDL_GetError());
-			break;
-		}
-		if ( flip ) {
-			SDL_Flip(screen);
-		} else {
-			SDL_UpdateRects(screen, 1, &update);
-		}
-	}
+        fprintf (stderr, "Converting picture\n");
+        displayfmt = SDL_DisplayFormat (picture);
+        if (displayfmt == NULL) {
+            fprintf (stderr, "Couldn't convert image: %s\n", SDL_GetError ());
+            goto done;
+        }
+        SDL_FreeSurface (picture);
+        picture = displayfmt;
+    }
+    printf ("(image surface located in %s memory)\n",
+            (picture->flags & SDL_HWSURFACE) ? "video" : "system");
+    centered = (screen->w - picture->w) / 2;
+    if (centered < 0) {
+        centered = 0;
+    }
+    dest.y = (screen->h - picture->h) / 2;
+    dest.w = picture->w;
+    dest.h = picture->h;
+    NOTICE ("testwin: moving image\n");
+    for (i = 0; i <= centered; ++i) {
+        dest.x = i;
+        update = dest;
+        if (SDL_BlitSurface (picture, NULL, screen, &update) < 0) {
+            fprintf (stderr, "Blit failed: %s\n", SDL_GetError ());
+            break;
+        }
+        if (flip) {
+            SDL_Flip (screen);
+        } else {
+            SDL_UpdateRects (screen, 1, &update);
+        }
+    }
 
 #ifdef SCREENSHOT
-	if ( SDL_SaveBMP(screen, "screen.bmp") < 0 )
-		printf("Couldn't save screen: %s\n", SDL_GetError());
+    if (SDL_SaveBMP (screen, "screen.bmp") < 0)
+        printf ("Couldn't save screen: %s\n", SDL_GetError ());
 #endif
 
 #ifndef BENCHMARK_SDL
-	/* Let it sit there for a while */
-	SDL_Delay(5*1000);
+    /* Let it sit there for a while */
+    SDL_Delay (5 * 1000);
 #endif
-	/* Fade the colormap */
-	if ( ! nofade ) {
-		int maxstep;
-		SDL_Color final;
-		SDL_Color palcolors[256];
-		struct {
-			Sint16 r, g, b;
-		} cdist[256];
+    /* Fade the colormap */
+    if (!nofade) {
+        int maxstep;
+        SDL_Color final;
+        SDL_Color palcolors[256];
+        struct
+        {
+            Sint16 r, g, b;
+        } cdist[256];
 
-NOTICE("testwin: fading out...\n");
-		memcpy(cmap, colors, ncolors*sizeof(SDL_Color));
-		maxstep = 32-1;
-		final.r = 0xFF;
-		final.g = 0x00;
-		final.b = 0x00;
-		memcpy(palcolors, colors, ncolors*sizeof(SDL_Color));
-		for ( i=0; i<ncolors; ++i ) {
-			cdist[i].r = final.r-palcolors[i].r;
-			cdist[i].g = final.g-palcolors[i].g;
-			cdist[i].b = final.b-palcolors[i].b;
-		}
-		for ( i=0; i<=maxstep/2; ++i ) {	/* halfway fade */
-			int c;
-			for ( c=0; c<ncolors; ++c ) {
-				colors[c].r =
-					palcolors[c].r+((cdist[c].r*i))/maxstep;
-				colors[c].g =
-					palcolors[c].g+((cdist[c].g*i))/maxstep;
-				colors[c].b =
-					palcolors[c].b+((cdist[c].b*i))/maxstep;
-			}
-			SDL_SetColors(screen, colors, 0, ncolors);
-			SDL_Delay(1);
-		}
-		final.r = 0x00;
-		final.g = 0x00;
-		final.b = 0x00;
-		memcpy(palcolors, colors, ncolors*sizeof(SDL_Color));
-		for ( i=0; i<ncolors; ++i ) {
-			cdist[i].r = final.r-palcolors[i].r;
-			cdist[i].g = final.g-palcolors[i].g;
-			cdist[i].b = final.b-palcolors[i].b;
-		}
-		maxstep /= 2;
-		for ( i=0; i<=maxstep; ++i ) {		/* finish fade out */
-			int c;
-			for ( c=0; c<ncolors; ++c ) {
-				colors[c].r =
-					palcolors[c].r+((cdist[c].r*i))/maxstep;
-				colors[c].g =
-					palcolors[c].g+((cdist[c].g*i))/maxstep;
-				colors[c].b =
-					palcolors[c].b+((cdist[c].b*i))/maxstep;
-			}
-			SDL_SetColors(screen, colors, 0, ncolors);
-			SDL_Delay(1);
-		}
-		for ( i=0; i<ncolors; ++i ) {
-			colors[i].r = final.r;
-			colors[i].g = final.g;
-			colors[i].b = final.b;
-		}
-		SDL_SetColors(screen, colors, 0, ncolors);
-NOTICE("testwin: fading in...\n");
-		memcpy(palcolors, colors, ncolors*sizeof(SDL_Color));
-		for ( i=0; i<ncolors; ++i ) {
-			cdist[i].r = cmap[i].r-palcolors[i].r;
-			cdist[i].g = cmap[i].g-palcolors[i].g;
-			cdist[i].b = cmap[i].b-palcolors[i].b;
-		}
-		for ( i=0; i<=maxstep; ++i ) {	/* 32 step fade in */
-			int c;
-			for ( c=0; c<ncolors; ++c ) {
-				colors[c].r =
-					palcolors[c].r+((cdist[c].r*i))/maxstep;
-				colors[c].g =
-					palcolors[c].g+((cdist[c].g*i))/maxstep;
-				colors[c].b =
-					palcolors[c].b+((cdist[c].b*i))/maxstep;
-			}
-			SDL_SetColors(screen, colors, 0, ncolors);
-			SDL_Delay(1);
-		}
-NOTICE("testwin: fading over\n");
-	}
-	
-done:
-	/* Free the picture and return */
-	SDL_FreeSurface(picture);
-	free(colors); free(cmap);
-	return;
+        NOTICE ("testwin: fading out...\n");
+        memcpy (cmap, colors, ncolors * sizeof (SDL_Color));
+        maxstep = 32 - 1;
+        final.r = 0xFF;
+        final.g = 0x00;
+        final.b = 0x00;
+        memcpy (palcolors, colors, ncolors * sizeof (SDL_Color));
+        for (i = 0; i < ncolors; ++i) {
+            cdist[i].r = final.r - palcolors[i].r;
+            cdist[i].g = final.g - palcolors[i].g;
+            cdist[i].b = final.b - palcolors[i].b;
+        }
+        for (i = 0; i <= maxstep / 2; ++i) {    /* halfway fade */
+            int c;
+            for (c = 0; c < ncolors; ++c) {
+                colors[c].r = palcolors[c].r + ((cdist[c].r * i)) / maxstep;
+                colors[c].g = palcolors[c].g + ((cdist[c].g * i)) / maxstep;
+                colors[c].b = palcolors[c].b + ((cdist[c].b * i)) / maxstep;
+            }
+            SDL_SetColors (screen, colors, 0, ncolors);
+            SDL_Delay (1);
+        }
+        final.r = 0x00;
+        final.g = 0x00;
+        final.b = 0x00;
+        memcpy (palcolors, colors, ncolors * sizeof (SDL_Color));
+        for (i = 0; i < ncolors; ++i) {
+            cdist[i].r = final.r - palcolors[i].r;
+            cdist[i].g = final.g - palcolors[i].g;
+            cdist[i].b = final.b - palcolors[i].b;
+        }
+        maxstep /= 2;
+        for (i = 0; i <= maxstep; ++i) {        /* finish fade out */
+            int c;
+            for (c = 0; c < ncolors; ++c) {
+                colors[c].r = palcolors[c].r + ((cdist[c].r * i)) / maxstep;
+                colors[c].g = palcolors[c].g + ((cdist[c].g * i)) / maxstep;
+                colors[c].b = palcolors[c].b + ((cdist[c].b * i)) / maxstep;
+            }
+            SDL_SetColors (screen, colors, 0, ncolors);
+            SDL_Delay (1);
+        }
+        for (i = 0; i < ncolors; ++i) {
+            colors[i].r = final.r;
+            colors[i].g = final.g;
+            colors[i].b = final.b;
+        }
+        SDL_SetColors (screen, colors, 0, ncolors);
+        NOTICE ("testwin: fading in...\n");
+        memcpy (palcolors, colors, ncolors * sizeof (SDL_Color));
+        for (i = 0; i < ncolors; ++i) {
+            cdist[i].r = cmap[i].r - palcolors[i].r;
+            cdist[i].g = cmap[i].g - palcolors[i].g;
+            cdist[i].b = cmap[i].b - palcolors[i].b;
+        }
+        for (i = 0; i <= maxstep; ++i) {        /* 32 step fade in */
+            int c;
+            for (c = 0; c < ncolors; ++c) {
+                colors[c].r = palcolors[c].r + ((cdist[c].r * i)) / maxstep;
+                colors[c].g = palcolors[c].g + ((cdist[c].g * i)) / maxstep;
+                colors[c].b = palcolors[c].b + ((cdist[c].b * i)) / maxstep;
+            }
+            SDL_SetColors (screen, colors, 0, ncolors);
+            SDL_Delay (1);
+        }
+        NOTICE ("testwin: fading over\n");
+    }
+
+  done:
+    /* Free the picture and return */
+    SDL_FreeSurface (picture);
+    free (colors);
+    free (cmap);
+    return;
 }
 
-int main(int argc, char *argv[])
+int
+main (int argc, char *argv[])
 {
-	SDL_Surface *screen;
-	/* Options */
-	int speedy, flip, nofade;
-	int delay;
-	int w, h;
-	int desired_bpp;
-	Uint32 video_flags;
+    SDL_Surface *screen;
+    /* Options */
+    int speedy, flip, nofade;
+    int delay;
+    int w, h;
+    int desired_bpp;
+    Uint32 video_flags;
 #ifdef BENCHMARK_SDL
-	Uint32 then, now;
+    Uint32 then, now;
 #endif
-	/* Set default options and check command-line */
-	speedy = 0;
-	flip = 0;
-	nofade = 0;
-	delay = 1;
+    /* Set default options and check command-line */
+    speedy = 0;
+    flip = 0;
+    nofade = 0;
+    delay = 1;
 
 #ifdef _WIN32_WCE
-	w = 240;
-	h = 320;
-	desired_bpp = 8;
-	video_flags = SDL_FULLSCREEN;
+    w = 240;
+    h = 320;
+    desired_bpp = 8;
+    video_flags = SDL_FULLSCREEN;
 #else
-	w = 640;
-	h = 480;
-	desired_bpp = 0;
-	video_flags = 0;
+    w = 640;
+    h = 480;
+    desired_bpp = 0;
+    video_flags = 0;
 #endif
-	if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) {
-		fprintf(stderr,
-			"Couldn't initialize SDL: %s\n", SDL_GetError());
-		return(1);
-	}
+    if (SDL_Init (SDL_INIT_VIDEO) < 0) {
+        fprintf (stderr, "Couldn't initialize SDL: %s\n", SDL_GetError ());
+        return (1);
+    }
 
-	while ( argc > 1 ) {
-		if ( strcmp(argv[1], "-speedy") == 0 ) {
-			speedy = 1;
-			argv += 1;
-			argc -= 1;
-		} else
-		if ( strcmp(argv[1], "-nofade") == 0 ) {
-			nofade = 1;
-			argv += 1;
-			argc -= 1;
-		} else
-		if ( strcmp(argv[1], "-delay") == 0 ) {
-			if ( argv[2] ) {
-				delay = atoi(argv[2]);
-				argv += 2;
-				argc -= 2;
-			} else {
-				fprintf(stderr,
-				"The -delay option requires an argument\n");
-				quit(1);
-			}
-		} else
-		if ( strcmp(argv[1], "-width") == 0 ) {
-			if ( argv[2] && ((w = atoi(argv[2])) > 0) ) {
-				argv += 2;
-				argc -= 2;
-			} else {
-				fprintf(stderr,
-				"The -width option requires an argument\n");
-				quit(1);
-			}
-		} else
-		if ( strcmp(argv[1], "-height") == 0 ) {
-			if ( argv[2] && ((h = atoi(argv[2])) > 0) ) {
-				argv += 2;
-				argc -= 2;
-			} else {
-				fprintf(stderr,
-				"The -height option requires an argument\n");
-				quit(1);
-			}
-		} else
-		if ( strcmp(argv[1], "-bpp") == 0 ) {
-			if ( argv[2] ) {
-				desired_bpp = atoi(argv[2]);
-				argv += 2;
-				argc -= 2;
-			} else {
-				fprintf(stderr,
-				"The -bpp option requires an argument\n");
-				quit(1);
-			}
-		} else
-		if ( strcmp(argv[1], "-warp") == 0 ) {
-			video_flags |= SDL_HWPALETTE;
-			argv += 1;
-			argc -= 1;
-		} else
-		if ( strcmp(argv[1], "-hw") == 0 ) {
-			video_flags |= SDL_HWSURFACE;
-			argv += 1;
-			argc -= 1;
-		} else
-		if ( strcmp(argv[1], "-flip") == 0 ) {
-			video_flags |= SDL_DOUBLEBUF;
-			argv += 1;
-			argc -= 1;
-		} else
-		if ( strcmp(argv[1], "-fullscreen") == 0 ) {
-			video_flags |= SDL_FULLSCREEN;
-			argv += 1;
-			argc -= 1;
-		} else
-			break;
-	}
+    while (argc > 1) {
+        if (strcmp (argv[1], "-speedy") == 0) {
+            speedy = 1;
+            argv += 1;
+            argc -= 1;
+        } else if (strcmp (argv[1], "-nofade") == 0) {
+            nofade = 1;
+            argv += 1;
+            argc -= 1;
+        } else if (strcmp (argv[1], "-delay") == 0) {
+            if (argv[2]) {
+                delay = atoi (argv[2]);
+                argv += 2;
+                argc -= 2;
+            } else {
+                fprintf (stderr, "The -delay option requires an argument\n");
+                quit (1);
+            }
+        } else if (strcmp (argv[1], "-width") == 0) {
+            if (argv[2] && ((w = atoi (argv[2])) > 0)) {
+                argv += 2;
+                argc -= 2;
+            } else {
+                fprintf (stderr, "The -width option requires an argument\n");
+                quit (1);
+            }
+        } else if (strcmp (argv[1], "-height") == 0) {
+            if (argv[2] && ((h = atoi (argv[2])) > 0)) {
+                argv += 2;
+                argc -= 2;
+            } else {
+                fprintf (stderr, "The -height option requires an argument\n");
+                quit (1);
+            }
+        } else if (strcmp (argv[1], "-bpp") == 0) {
+            if (argv[2]) {
+                desired_bpp = atoi (argv[2]);
+                argv += 2;
+                argc -= 2;
+            } else {
+                fprintf (stderr, "The -bpp option requires an argument\n");
+                quit (1);
+            }
+        } else if (strcmp (argv[1], "-warp") == 0) {
+            video_flags |= SDL_HWPALETTE;
+            argv += 1;
+            argc -= 1;
+        } else if (strcmp (argv[1], "-hw") == 0) {
+            video_flags |= SDL_HWSURFACE;
+            argv += 1;
+            argc -= 1;
+        } else if (strcmp (argv[1], "-flip") == 0) {
+            video_flags |= SDL_DOUBLEBUF;
+            argv += 1;
+            argc -= 1;
+        } else if (strcmp (argv[1], "-fullscreen") == 0) {
+            video_flags |= SDL_FULLSCREEN;
+            argv += 1;
+            argc -= 1;
+        } else
+            break;
+    }
 
-	/* Initialize the display */
-	screen = SDL_SetVideoMode(w, h, desired_bpp, video_flags);
-	if ( screen == NULL ) {
-		fprintf(stderr, "Couldn't set %dx%dx%d video mode: %s\n",
-					w, h, desired_bpp, SDL_GetError());
-		quit(1);
-	}
-	printf("Set%s %dx%dx%d mode\n",
-			screen->flags & SDL_FULLSCREEN ? " fullscreen" : "",
-			screen->w, screen->h, screen->format->BitsPerPixel);
-	printf("(video surface located in %s memory)\n",
-			(screen->flags&SDL_HWSURFACE) ? "video" : "system");
-	if ( screen->flags & SDL_DOUBLEBUF ) {
-		printf("Double-buffering enabled\n");
-		flip = 1;
-	}
+    /* Initialize the display */
+    screen = SDL_SetVideoMode (w, h, desired_bpp, video_flags);
+    if (screen == NULL) {
+        fprintf (stderr, "Couldn't set %dx%dx%d video mode: %s\n",
+                 w, h, desired_bpp, SDL_GetError ());
+        quit (1);
+    }
+    printf ("Set%s %dx%dx%d mode\n",
+            screen->flags & SDL_FULLSCREEN ? " fullscreen" : "",
+            screen->w, screen->h, screen->format->BitsPerPixel);
+    printf ("(video surface located in %s memory)\n",
+            (screen->flags & SDL_HWSURFACE) ? "video" : "system");
+    if (screen->flags & SDL_DOUBLEBUF) {
+        printf ("Double-buffering enabled\n");
+        flip = 1;
+    }
 
-	/* Set the window manager title bar */
-	SDL_WM_SetCaption("SDL test window", "testwin");
+    /* Set the window manager title bar */
+    SDL_WM_SetCaption ("SDL test window", "testwin");
 
-	/* Do all the drawing work */
+    /* Do all the drawing work */
 #ifdef BENCHMARK_SDL
-	then = SDL_GetTicks();
-	DrawPict(screen, argv[1], speedy, flip, nofade);
-	now = SDL_GetTicks();
-	printf("Time: %d milliseconds\n", now-then);
+    then = SDL_GetTicks ();
+    DrawPict (screen, argv[1], speedy, flip, nofade);
+    now = SDL_GetTicks ();
+    printf ("Time: %d milliseconds\n", now - then);
 #else
-	DrawPict(screen, argv[1], speedy, flip, nofade);
+    DrawPict (screen, argv[1], speedy, flip, nofade);
 #endif
-	SDL_Delay(delay*1000);
-	SDL_Quit();
-	return(0);
+    SDL_Delay (delay * 1000);
+    SDL_Quit ();
+    return (0);
 }