Mercurial > sdl-ios-xcode
view test/testwin.c @ 2079:1ed2155b7ee4
From: Torsten Giebl
Subject: ALLOCA Patch for SDL-1.2
Newsgroups: gmane.comp.lib.sdl
Date: 2006-10-24 00:31:16 GMT
Hello !
As alloca.h is not available on CYGWIN and MinGW32
it should not be checked there or it should be checked
with -mno-cygwin using.
I am a total configure.in newbie, but i found the way
that things are handled in configure.in pretty bad for the
case CYGWIN with MinGW Mode or not.
Maybe this is not possible but i would like to
have a way to detect at the start for example CYGWIN
and then add. ask if configure was called with --enable-cygwin
for example. --enable-cygwin should be optional and disabled
by default as we want to have MinGW Mode by default.
Only if the user wants it he should be able to use it.
Then the whole configure.in would get add. questions
okay the system is CYGWIN with or without MinGW Mode.
The alloca.h thing for example is only
available under CYGWIN ( without MinGW Mode ).
CU
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Fri, 01 Dec 2006 20:25:03 +0000 |
parents | c121d94672cb |
children | c4eccbd21d16 |
line wrap: on
line source
/* 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" /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ static void quit(int rc) { SDL_Quit(); exit(rc); } 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; #ifdef _WIN32_WCE w = 240; h = 320; desired_bpp = 8; video_flags = SDL_FULLSCREEN; #else 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); } 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; } /* 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); SDL_Quit(); return (0); }