/** * Set given width & height arguments to maximum size allowed in the * configuration, or if that's too large for the requested bit depth, * to the largest available video mode size. */ void Resolution_GetLimits(int *width, int *height, int *bpp, bool keep) { *width = *height = 0; /* constrain max size to what HW/SDL offers */ DEBUGPRINT(("resolution: request limits for: %dx%dx%d\n", *width, *height, *bpp)); /* forced resolution? */ if (Resolution_Search(width, height, bpp, keep)) { return; } if (!(*width && *height) || (ConfigureParams.Screen.nMaxWidth < *width && ConfigureParams.Screen.nMaxHeight < *height)) { DEBUGPRINT(("resolution: limit to user configured max\n")); *width = ConfigureParams.Screen.nMaxWidth; *height = ConfigureParams.Screen.nMaxHeight; } }
void HostScreen_setWindowSize(int width, int height, int bpp) { int screenwidth, screenheight, maxw, maxh; int scalex, scaley, sbarheight; if (bpp == 24) bpp = 32; /* constrain size request to user's desktop size */ Resolution_GetDesktopSize(&maxw, &maxh); scalex = scaley = 1; while (width > maxw*scalex) { scalex *= 2; } while (height > maxh*scalex) { scalex *= 2; } if (scalex * scaley > 1) { fprintf(stderr, "WARNING: too large screen size %dx%d -> divided by %dx%d!\n", width, height, scalex, scaley); width /= scalex; height /= scaley; } Resolution_GetLimits(&maxw, &maxh, &bpp); nScreenZoomX = nScreenZoomY = 1; if (ConfigureParams.Screen.bAspectCorrect) { /* Falcon (and TT) pixel scaling factors seem to 2^x * (quarter/half pixel, interlace/double line), so * do aspect correction as 2's exponent. */ while (nScreenZoomX*width < height && 2*nScreenZoomX*width < maxw) { nScreenZoomX *= 2; } while (2*nScreenZoomY*height < width && 2*nScreenZoomY*height < maxh) { nScreenZoomY *= 2; } if (nScreenZoomX*nScreenZoomY > 2) { fprintf(stderr, "WARNING: strange screen size %dx%d -> aspect corrected by %dx%d!\n", width, height, nScreenZoomX, nScreenZoomY); } } /* then select scale as close to target size as possible * without having larger size than it */ scalex = maxw/(nScreenZoomX*width); scaley = maxh/(nScreenZoomY*height); if (scalex > 1 && scaley > 1) { /* keep aspect ratio */ if (scalex < scaley) { nScreenZoomX *= scalex; nScreenZoomY *= scalex; } else { nScreenZoomX *= scaley; nScreenZoomY *= scaley; } } hs_width_req = width; hs_height_req = height; width *= nScreenZoomX; height *= nScreenZoomY; /* get statusbar size for this screen size */ sbarheight = Statusbar_GetHeightForSize(width, height); screenheight = height + sbarheight; screenwidth = width; /* get resolution corresponding to these */ Resolution_Search(&screenwidth, &screenheight, &bpp); /* re-calculate statusbar height for this resolution */ sbarheight = Statusbar_SetHeight(screenwidth, screenheight-sbarheight); hs_bpp = bpp; /* videl.c might scale things differently in fullscreen than * in windowed mode because this uses screensize instead of using * the aspect scaled sizes directly, but it works better this way. */ hs_width = screenwidth; hs_height = screenheight - sbarheight; if (sdlscrn && (!bpp || sdlscrn->format->BitsPerPixel == bpp) && sdlscrn->w == (signed)screenwidth && sdlscrn->h == (signed)screenheight && (sdlscrn->flags&SDL_FULLSCREEN) == (sdl_videoparams&SDL_FULLSCREEN)) { /* same host screen size despite Atari resolution change, * -> no time consuming host video mode change needed */ if (screenwidth > width || screenheight > height+sbarheight) { /* Atari screen smaller than host -> clear screen */ SDL_Rect rect; rect.x = 0; rect.y = 0; rect.w = sdlscrn->w; rect.h = sdlscrn->h - sbarheight; SDL_FillRect(sdlscrn, &rect, SDL_MapRGB(sdlscrn->format, 0, 0, 0)); /* re-calculate variables in case height + statusbar height * don't anymore match SDL surface size (there's an assert * for that) */ Statusbar_Init(sdlscrn); } // check in case switched from VDI to Hostscreen doUpdate = ( sdlscrn->flags & SDL_HWSURFACE ) == 0; return; } if (bInFullScreen) { /* un-embed the Hatari WM window for fullscreen */ Control_ReparentWindow(screenwidth, screenheight, bInFullScreen); sdl_videoparams = SDL_SWSURFACE|SDL_HWPALETTE|SDL_FULLSCREEN; } else { sdl_videoparams = SDL_SWSURFACE|SDL_HWPALETTE; } #ifdef _MUDFLAP if (sdlscrn) { __mf_unregister(sdlscrn->pixels, sdlscrn->pitch*sdlscrn->h, __MF_TYPE_GUESS); } #endif sdlscrn = SDL_SetVideoMode(screenwidth, screenheight, bpp, sdl_videoparams); #ifdef _MUDFLAP __mf_register(sdlscrn->pixels, sdlscrn->pitch*sdlscrn->h, __MF_TYPE_GUESS, "SDL pixels"); #endif if (!bInFullScreen) { /* re-embed the new Hatari SDL window */ Control_ReparentWindow(screenwidth, screenheight, bInFullScreen); } // In case surface format changed, update SDL palette & remap the native palette HostScreen_updatePalette(256); HostScreen_remapPalette(); // redraw statusbar Statusbar_Init(sdlscrn); Dprintf(("Surface Pitch = %d, width = %d, height = %d\n", sdlscrn->pitch, sdlscrn->w, sdlscrn->h)); Dprintf(("Must Lock? %s\n", SDL_MUSTLOCK(sdlscrn) ? "YES" : "NO")); // is the SDL_update needed? doUpdate = ( sdlscrn->flags & SDL_HWSURFACE ) == 0; Dprintf(("Pixel format:bitspp=%d, tmasks r=%04x g=%04x b=%04x" ", tshifts r=%d g=%d b=%d" ", tlosses r=%d g=%d b=%d\n", sdlscrn->format->BitsPerPixel, sdlscrn->format->Rmask, sdlscrn->format->Gmask, sdlscrn->format->Bmask, sdlscrn->format->Rshift, sdlscrn->format->Gshift, sdlscrn->format->Bshift, sdlscrn->format->Rloss, sdlscrn->format->Gloss, sdlscrn->format->Bloss)); Main_WarpMouse(sdlscrn->w/2,sdlscrn->h/2); }