test/testwin.c
changeset 0 74212992fb08
child 228 153f221b7d48
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/testwin.c	Thu Apr 26 16:45:43 2001 +0000
@@ -0,0 +1,361 @@
+
+/* Bring up a window and play with it */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#define BENCHMARK_SDL
+
+#define NOTICE(X)	printf("%s", X);
+
+#include "SDL.h"
+
+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;
+
+	/* 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;
+
+		/* 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 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);
+	}
+	
+	/* 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);
+		}
+	}
+
+#ifdef SCREENSHOT
+	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);
+#endif
+	/* 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;
+}
+
+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;
+#ifdef BENCHMARK_SDL
+	Uint32 then, now;
+#endif
+	/* Set default options and check command-line */
+	speedy = 0;
+	flip = 0;
+	nofade = 0;
+	delay = 1;
+	w = 640;
+	h = 480;
+	desired_bpp = 0;
+	video_flags = 0;
+	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");
+				exit(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");
+				exit(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");
+				exit(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");
+				exit(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;
+	}
+
+	if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) {
+		fprintf(stderr,
+			"Couldn't initialize SDL: %s\n", SDL_GetError());
+		exit(1);
+	}
+	atexit(SDL_Quit);			/* Clean up on exit */
+
+	/* 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());
+		exit(1);
+	}
+	printf("Set %dx%dx%d mode\n",
+			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");
+
+	/* 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);
+#else
+	DrawPict(screen, argv[1], speedy, flip, nofade);
+#endif
+	SDL_Delay(delay*1000);
+	return(0);
+}