Mercurial > sdl-ios-xcode
view test/testwin.c @ 821:30168104389f
Date: Sat, 14 Feb 2004 14:52:40 +0200
From: "Mike Gorchak"
Subject: Batch of the QNX6 fixes for the SDL
1. Updated readme.QNX
2. Fixed crashes during intensive window updating under fast machines (got over 200 rectangles for update).
3. Fixed double-buffered fullscreen modes, now it works as needed.
4. Fixed Photon detection algorithm.
5. Fixed HWSURFACE update function.
6. Added SDL_PHOTON_FULLSCREEN_REFRESH environment variable support for control refresh rates under Photon.
7. Added 640x400 fullscreen mode emulation via 640x480 (if videodriver not supports original 640x400 mode of course) shifted by 40 vertical pixels from begin, to center it. It's needed for some old DOS games which ran in doubled 320x200 mode.
8. Added available video ram amount support.
8. Added hardware surface allocation/deallocation support if current videomode and videodriver supports it.
9. Added hardware filling support.
10. Added hardware blits support (simple and colorkeyed).
And I've added to testvidinfo test color-keyed blits benchmark (maybe need to add alpha blits benchmark too ?). Currently Photon not supporting any alpha hardware blittings (all drivers lack of alpha blitting code support, only software alpha blitting exist in photon, which is hundreds times slowest than the SDL's one). So I've not added the alpha support. I suppose new QNX 6.3 will have the hardware alpha support, so when it will be done, I'll add alpha support.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sat, 14 Feb 2004 20:22:21 +0000 |
parents | 153f221b7d48 |
children | be9c9c8f6d53 |
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/* 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%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); return(0); }