Mercurial > sdl-ios-xcode
view test/testvidinfo.c @ 1192:54aa9aa32327
To: sdl@libsdl.org
From: Christian Walther <cwalther@gmx.ch>
Date: Fri, 18 Nov 2005 23:39:02 +0100
Subject: [SDL] Mouse position bugs on Mac OS X
The attached patch fixes a few bugs in SDL related to the mouse position
in windowed mode on Mac OS X, reproduced using the attached minimal test
program - at least here on 10.3.9, with SDL CVS from today. Could anyone
test whether the bugs exist and are fixed by the patch on 10.2 and 10.4?
1. When using OpenGL, the vertical mouse positions obtained through
events or SDL_GetMouseState() are off by one.
2. When using OpenGL, SDL_WarpMouse() inverts the y coordinate.
3. Clicks on the topmost pixel row of the window are not recognized.
1 and 2 do not occur in non-OpenGL mode, while 3 does. All three only
occur in windowed mode, not in fullscreen.
The cause for 1 and 3 is that in Cocoa, "the location of the mouse"
seems to be defined as "the location of the top left corner of the mouse
pointer's hot pixel" (this is not documented, it's just what I found out
here), which together with the fact that Cocoa's usual y coordinates
start at the bottom and increase upwards means that the y coordinate of
the mouse runs from 1 to h, not from 0 to h-1, in a window of height h.
If it does work on 10.2 and 10.4 (I'll try to test it as soon as I can,
but at the moment all I have at hand is 10.3.9), can this be applied to
the CVS?
-Christian
To: sdl@libsdl.org
From: Christian Walther <cwalther@gmx.ch>
Date: Mon, 28 Nov 2005 10:41:51 +0100
Subject: [SDL] Re: Mouse position bugs on Mac OS X
I wrote:
> I'll try to test it as soon as I can, but at the moment all I have at hand is 10.3.9
So, here are the results of my tests (with patched and unpatched
frameworks compiled with Xcode 1.5 (gcc 3.3) on 10.3.9):
On 10.1.5, my test program doesn't run because of "Undefined symbols:
SDL undefined reference to _CGMainDisplayID expected to be defined in
Carbon". I guess not supporting 10.1 was a deliberate decision then and
that's OK with me.
On 10.2.8, 10.3.9, and 10.4.0, the bugs exist as described in my
original post and are fixed by my patch. That is, there is no difference
between pre/post 10.3 and the patched version works correctly in all
combinations of GL/non-GL and windowed/fullscreen.
I therefore recommend the patch for inclusion.
-Christian
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Mon, 28 Nov 2005 13:58:26 +0000 |
parents | 05c551e5bc64 |
children | 8d9bb0cf2c2a |
line wrap: on
line source
/* 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) 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; } } } } int main(int argc, char *argv[]) { const SDL_VideoInfo *info; int i; SDL_Rect **modes; char driver[128]; if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) { fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError()); exit(1); } if ( SDL_VideoDriverName(driver, sizeof(driver)) ) { printf("Video driver: %s\n", driver); } info = SDL_GetVideoInfo(); printf( "Current display: %d bits-per-pixel\n",info->vfmt->BitsPerPixel); if ( info->vfmt->palette == NULL ) { printf(" Red Mask = 0x%.8x\n", info->vfmt->Rmask); printf(" Green Mask = 0x%.8x\n", info->vfmt->Gmask); printf(" Blue Mask = 0x%.8x\n", info->vfmt->Bmask); } /* Print available fullscreen video modes */ modes = SDL_ListModes(NULL, SDL_FULLSCREEN); if ( modes == (SDL_Rect **)0 ) { printf("No available fullscreen video modes\n"); } else if ( modes == (SDL_Rect **)-1 ) { printf("No special fullscreen video modes\n"); } else { printf("Fullscreen video modes:\n"); for ( i=0; modes[i]; ++i ) { printf("\t%dx%dx%d\n", modes[i]->w, modes[i]->h, info->vfmt->BitsPerPixel); } } 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 ( argv[1] && (strcmp(argv[1], "-benchmark") == 0) ) { RunVideoTests(); } SDL_Quit(); return(0); }