Mercurial > sdl-ios-xcode
view test/testvidinfo.c @ 2318:0c653886cce7
HandleEvent() returns done each time it is called. If done was set to 0 the program should quit, but because done is not checked until *all* events are handled a
following event can reset done to 1 and prevent the program from terminating when told to. I fixed the while loop that handles events to check for the state of done
after handling each event. That could leave some events unhandled when the program exits, but it ensures that the program will exit.
author | Bob Pendleton <bob@pendleton.com> |
---|---|
date | Wed, 20 Feb 2008 23:27:33 +0000 |
parents | 01e29c3e9a29 |
children | 929e7dd10031 |
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/* Simple program -- figure out what kind of video display we have */ #include <stdlib.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include "SDL.h" #define NUM_BLITS 10 #define NUM_UPDATES 500 #define FLAG_MASK (SDL_HWSURFACE | SDL_FULLSCREEN | SDL_DOUBLEBUF | \ SDL_SRCCOLORKEY | SDL_SRCALPHA | SDL_RLEACCEL | \ SDL_RLEACCELOK) #if 0 void PrintFlags(Uint32 flags) { printf("0x%8.8x", (flags & FLAG_MASK)); if (flags & SDL_HWSURFACE) { printf(" SDL_HWSURFACE"); } else { printf(" SDL_SWSURFACE"); } if (flags & SDL_FULLSCREEN) { printf(" | SDL_FULLSCREEN"); } if (flags & SDL_DOUBLEBUF) { printf(" | SDL_DOUBLEBUF"); } if (flags & SDL_SRCCOLORKEY) { printf(" | SDL_SRCCOLORKEY"); } if (flags & SDL_SRCALPHA) { printf(" | SDL_SRCALPHA"); } if (flags & SDL_RLEACCEL) { printf(" | SDL_RLEACCEL"); } if (flags & SDL_RLEACCELOK) { printf(" | SDL_RLEACCELOK"); } } int RunBlitTests(SDL_Surface * screen, SDL_Surface * bmp, int blitcount) { int i, j; int maxx; int maxy; SDL_Rect dst; maxx = (int) screen->w - bmp->w + 1; maxy = (int) screen->h - bmp->h + 1; for (i = 0; i < NUM_UPDATES; ++i) { for (j = 0; j < blitcount; ++j) { if (maxx) { dst.x = rand() % maxx; } else { dst.x = 0; } if (maxy) { dst.y = rand() % maxy; } else { dst.y = 0; } dst.w = bmp->w; dst.h = bmp->h; SDL_BlitSurface(bmp, NULL, screen, &dst); } SDL_Flip(screen); } return i; } int RunModeTests(SDL_Surface * screen) { Uint32 then, now; Uint32 frames; float seconds; int i; Uint8 r, g, b; SDL_Surface *bmp, *bmpcc, *tmp; SDL_Event event; while (SDL_PollEvent(&event)) { if (event.type == SDL_KEYDOWN) return 0; } /* First test fills and screen update speed */ printf("Running color fill and fullscreen update test\n"); then = SDL_GetTicks(); frames = 0; for (i = 0; i < 256; ++i) { r = i; g = 0; b = 0; SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, r, g, b)); SDL_Flip(screen); ++frames; } for (i = 0; i < 256; ++i) { r = 0; g = i; b = 0; SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, r, g, b)); SDL_Flip(screen); ++frames; } for (i = 0; i < 256; ++i) { r = 0; g = 0; b = i; SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, r, g, b)); SDL_Flip(screen); ++frames; } now = SDL_GetTicks(); seconds = (float) (now - then) / 1000.0f; if (seconds > 0.0f) { printf("%d fills and flips in %2.2f seconds, %2.2f FPS\n", frames, seconds, (float) frames / seconds); } else { printf("%d fills and flips in zero seconds!n", frames); } /* clear the screen after fill test */ SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0)); SDL_Flip(screen); while (SDL_PollEvent(&event)) { if (event.type == SDL_KEYDOWN) return 0; } /* run the generic blit test */ bmp = SDL_LoadBMP("sample.bmp"); if (!bmp) { printf("Couldn't load sample.bmp: %s\n", SDL_GetError()); return 0; } printf("Running freshly loaded blit test: %dx%d at %d bpp, flags: ", bmp->w, bmp->h, bmp->format->BitsPerPixel); PrintFlags(bmp->flags); printf("\n"); then = SDL_GetTicks(); frames = RunBlitTests(screen, bmp, NUM_BLITS); now = SDL_GetTicks(); seconds = (float) (now - then) / 1000.0f; if (seconds > 0.0f) { printf("%d blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS * frames, frames, seconds, (float) frames / seconds); } else { printf("%d blits / %d updates in zero seconds!\n", NUM_BLITS * frames, frames); } /* clear the screen after blit test */ SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0)); SDL_Flip(screen); while (SDL_PollEvent(&event)) { if (event.type == SDL_KEYDOWN) return 0; } /* run the colorkeyed blit test */ bmpcc = SDL_LoadBMP("sample.bmp"); if (!bmpcc) { printf("Couldn't load sample.bmp: %s\n", SDL_GetError()); return 0; } printf("Running freshly loaded cc blit test: %dx%d at %d bpp, flags: ", bmpcc->w, bmpcc->h, bmpcc->format->BitsPerPixel); SDL_SetColorKey(bmpcc, SDL_SRCCOLORKEY | SDL_RLEACCEL, *(Uint8 *) bmpcc->pixels); PrintFlags(bmpcc->flags); printf("\n"); then = SDL_GetTicks(); frames = RunBlitTests(screen, bmpcc, NUM_BLITS); now = SDL_GetTicks(); seconds = (float) (now - then) / 1000.0f; if (seconds > 0.0f) { printf("%d cc blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS * frames, frames, seconds, (float) frames / seconds); } else { printf("%d cc blits / %d updates in zero seconds!\n", NUM_BLITS * frames, frames); } /* clear the screen after cc blit test */ SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0)); SDL_Flip(screen); while (SDL_PollEvent(&event)) { if (event.type == SDL_KEYDOWN) return 0; } /* run the generic blit test */ tmp = bmp; bmp = SDL_DisplayFormat(bmp); SDL_FreeSurface(tmp); if (!bmp) { printf("Couldn't convert sample.bmp: %s\n", SDL_GetError()); return 0; } printf("Running display format blit test: %dx%d at %d bpp, flags: ", bmp->w, bmp->h, bmp->format->BitsPerPixel); PrintFlags(bmp->flags); printf("\n"); then = SDL_GetTicks(); frames = RunBlitTests(screen, bmp, NUM_BLITS); now = SDL_GetTicks(); seconds = (float) (now - then) / 1000.0f; if (seconds > 0.0f) { printf("%d blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS * frames, frames, seconds, (float) frames / seconds); } else { printf("%d blits / %d updates in zero seconds!\n", NUM_BLITS * frames, frames); } /* clear the screen after blit test */ SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0)); SDL_Flip(screen); while (SDL_PollEvent(&event)) { if (event.type == SDL_KEYDOWN) return 0; } /* run the colorkeyed blit test */ tmp = bmpcc; bmpcc = SDL_DisplayFormat(bmpcc); SDL_FreeSurface(tmp); if (!bmpcc) { printf("Couldn't convert sample.bmp: %s\n", SDL_GetError()); return 0; } printf("Running display format cc blit test: %dx%d at %d bpp, flags: ", bmpcc->w, bmpcc->h, bmpcc->format->BitsPerPixel); PrintFlags(bmpcc->flags); printf("\n"); then = SDL_GetTicks(); frames = RunBlitTests(screen, bmpcc, NUM_BLITS); now = SDL_GetTicks(); seconds = (float) (now - then) / 1000.0f; if (seconds > 0.0f) { printf("%d cc blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS * frames, frames, seconds, (float) frames / seconds); } else { printf("%d cc blits / %d updates in zero seconds!\n", NUM_BLITS * frames, frames); } /* clear the screen after cc blit test */ SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0)); SDL_Flip(screen); while (SDL_PollEvent(&event)) { if (event.type == SDL_KEYDOWN) return 0; } /* run the alpha blit test only if screen bpp>8 */ if (bmp->format->BitsPerPixel > 8) { SDL_FreeSurface(bmp); bmp = SDL_LoadBMP("sample.bmp"); SDL_SetAlpha(bmp, SDL_SRCALPHA, 85); /* 85 - 33% alpha */ tmp = bmp; bmp = SDL_DisplayFormat(bmp); SDL_FreeSurface(tmp); if (!bmp) { printf("Couldn't convert sample.bmp: %s\n", SDL_GetError()); return 0; } printf ("Running display format alpha blit test: %dx%d at %d bpp, flags: ", bmp->w, bmp->h, bmp->format->BitsPerPixel); PrintFlags(bmp->flags); printf("\n"); then = SDL_GetTicks(); frames = RunBlitTests(screen, bmp, NUM_BLITS); now = SDL_GetTicks(); seconds = (float) (now - then) / 1000.0f; if (seconds > 0.0f) { printf ("%d alpha blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS * frames, frames, seconds, (float) frames / seconds); } else { printf("%d alpha blits / %d updates in zero seconds!\n", NUM_BLITS * frames, frames); } } /* clear the screen after alpha blit test */ SDL_FillRect(screen, NULL, SDL_MapRGB(screen->format, 0, 0, 0)); SDL_Flip(screen); while (SDL_PollEvent(&event)) { if (event.type == SDL_KEYDOWN) return 0; } /* run the cc+alpha blit test only if screen bpp>8 */ if (bmp->format->BitsPerPixel > 8) { SDL_FreeSurface(bmpcc); bmpcc = SDL_LoadBMP("sample.bmp"); SDL_SetAlpha(bmpcc, SDL_SRCALPHA, 85); /* 85 - 33% alpha */ SDL_SetColorKey(bmpcc, SDL_SRCCOLORKEY | SDL_RLEACCEL, *(Uint8 *) bmpcc->pixels); tmp = bmpcc; bmpcc = SDL_DisplayFormat(bmpcc); SDL_FreeSurface(tmp); if (!bmpcc) { printf("Couldn't convert sample.bmp: %s\n", SDL_GetError()); return 0; } printf ("Running display format cc+alpha blit test: %dx%d at %d bpp, flags: ", bmpcc->w, bmpcc->h, bmpcc->format->BitsPerPixel); PrintFlags(bmpcc->flags); printf("\n"); then = SDL_GetTicks(); frames = RunBlitTests(screen, bmpcc, NUM_BLITS); now = SDL_GetTicks(); seconds = (float) (now - then) / 1000.0f; if (seconds > 0.0f) { printf ("%d cc+alpha blits / %d updates in %2.2f seconds, %2.2f FPS\n", NUM_BLITS * frames, frames, seconds, (float) frames / seconds); } else { printf("%d cc+alpha blits / %d updates in zero seconds!\n", NUM_BLITS * frames, frames); } } SDL_FreeSurface(bmpcc); SDL_FreeSurface(bmp); while (SDL_PollEvent(&event)) { if (event.type == SDL_KEYDOWN) return 0; } return 1; } void RunVideoTests() { static const struct { int w, h, bpp; } mode_list[] = { { 640, 480, 8}, { 640, 480, 16}, { 640, 480, 32}, { 800, 600, 8}, { 800, 600, 16}, { 800, 600, 32}, { 1024, 768, 8}, { 1024, 768, 16}, { 1024, 768, 32} }; static const Uint32 flags[] = { (SDL_SWSURFACE), (SDL_SWSURFACE | SDL_FULLSCREEN), (SDL_HWSURFACE | SDL_FULLSCREEN), (SDL_HWSURFACE | SDL_FULLSCREEN | SDL_DOUBLEBUF) }; int i, j; SDL_Surface *screen; /* Test out several different video mode combinations */ SDL_WM_SetCaption("SDL Video Benchmark", "vidtest"); SDL_ShowCursor(0); for (i = 0; i < SDL_TABLESIZE(mode_list); ++i) { for (j = 0; j < SDL_TABLESIZE(flags); ++j) { printf("===================================\n"); printf("Setting video mode: %dx%d at %d bpp, flags: ", mode_list[i].w, mode_list[i].h, mode_list[i].bpp); PrintFlags(flags[j]); printf("\n"); screen = SDL_SetVideoMode(mode_list[i].w, mode_list[i].h, mode_list[i].bpp, flags[j]); if (!screen) { printf("Setting video mode failed: %s\n", SDL_GetError()); continue; } if ((screen->flags & FLAG_MASK) != flags[j]) { printf("Flags didn't match: "); PrintFlags(screen->flags); printf("\n"); continue; } if (!RunModeTests(screen)) { return; } } } } #endif int main(int argc, char *argv[]) { const SDL_VideoInfo *info; int i, d, n; const char *driver; SDL_DisplayMode mode; int bpp; Uint32 Rmask, Gmask, Bmask, Amask; int nmodes; /* Print available video drivers */ n = SDL_GetNumVideoDrivers(); if (n == 0) { printf("No built-in video drivers\n"); } else { printf("Built-in video drivers:"); for (i = 0; i < n; ++i) { if (i > 0) { printf(","); } printf(" %s", SDL_GetVideoDriver(i)); } printf("\n"); } if (SDL_Init(SDL_INIT_VIDEO) < 0) { fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError()); exit(1); } driver = SDL_GetCurrentVideoDriver(); if (driver) { printf("Video driver: %s\n", driver); } printf("Number of displays: %d\n", SDL_GetNumVideoDisplays()); for (d = 0; d < SDL_GetNumVideoDisplays(); ++d) { printf("Display %d:\n", d); SDL_SelectVideoDisplay(d); SDL_GetDesktopDisplayMode(&mode); SDL_PixelFormatEnumToMasks(mode.format, &bpp, &Rmask, &Gmask, &Bmask, &Amask); printf(" Current mode: %dx%d@%dHz, %d bits-per-pixel\n", mode.w, mode.h, mode.refresh_rate, bpp); if (Rmask || Gmask || Bmask) { printf(" Red Mask = 0x%.8x\n", Rmask); printf(" Green Mask = 0x%.8x\n", Gmask); printf(" Blue Mask = 0x%.8x\n", Bmask); if (Amask) printf(" Alpha Mask = 0x%.8x\n", Amask); } /* Print available fullscreen video modes */ nmodes = SDL_GetNumDisplayModes(); if (nmodes == 0) { printf("No available fullscreen video modes\n"); } else { printf(" Fullscreen video modes:\n"); for (i = 0; i < nmodes; ++i) { SDL_GetDisplayMode(i, &mode); SDL_PixelFormatEnumToMasks(mode.format, &bpp, &Rmask, &Gmask, &Bmask, &Amask); printf(" Mode %d: %dx%d@%dHz, %d bits-per-pixel\n", i, mode.w, mode.h, mode.refresh_rate, bpp); if (Rmask || Gmask || Bmask) { printf(" Red Mask = 0x%.8x\n", Rmask); printf(" Green Mask = 0x%.8x\n", Gmask); printf(" Blue Mask = 0x%.8x\n", Bmask); if (Amask) printf(" Alpha Mask = 0x%.8x\n", Amask); } } } } info = SDL_GetVideoInfo(); if (info->wm_available) { printf("A window manager is available\n"); } if (info->hw_available) { printf("Hardware surfaces are available (%dK video memory)\n", info->video_mem); } if (info->blit_hw) { printf("Copy blits between hardware surfaces are accelerated\n"); } if (info->blit_hw_CC) { printf("Colorkey blits between hardware surfaces are accelerated\n"); } if (info->blit_hw_A) { printf("Alpha blits between hardware surfaces are accelerated\n"); } if (info->blit_sw) { printf ("Copy blits from software surfaces to hardware surfaces are accelerated\n"); } if (info->blit_sw_CC) { printf ("Colorkey blits from software surfaces to hardware surfaces are accelerated\n"); } if (info->blit_sw_A) { printf ("Alpha blits from software surfaces to hardware surfaces are accelerated\n"); } if (info->blit_fill) { printf("Color fills on hardware surfaces are accelerated\n"); } #if 0 if (argv[1] && (strcmp(argv[1], "-benchmark") == 0)) { RunVideoTests(); } #endif SDL_Quit(); return (0); }