X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Flibgame%2Fsdl.c;h=bf875a6dafe60bf14156af80038ba9d1612bd3f0;hb=c3c190ae0fb103b7843b84b964bdfa1acb9b0091;hp=0b27fafbfec3ad71b4840a2b885d3c96282cc297;hpb=2486a7a849210371bb59e733e37b0271a4332d8b;p=rocksndiamonds.git diff --git a/src/libgame/sdl.c b/src/libgame/sdl.c index 0b27fafb..bf875a6d 100644 --- a/src/libgame/sdl.c +++ b/src/libgame/sdl.c @@ -177,14 +177,113 @@ static void SDLSetWindowIcon(char *basename) } #if defined(TARGET_SDL2) + +static boolean equalSDLPixelFormat(SDL_PixelFormat *format1, + SDL_PixelFormat *format2) +{ + return (format1->format == format2->format && + format1->BitsPerPixel == format2->BitsPerPixel && + format1->BytesPerPixel == format2->BytesPerPixel && + format1->Rmask == format2->Rmask && + format1->Gmask == format2->Gmask && + format1->Bmask == format2->Bmask && + format1->Amask == format2->Amask); +} + +boolean SDLSetNativeSurface(SDL_Surface **surface) +{ + SDL_Surface *new_surface; + + if (surface == NULL || + *surface == NULL || + backbuffer == NULL || + backbuffer->surface == NULL) + return FALSE; + + // if pixel format already optimized for destination surface, do nothing + if (equalSDLPixelFormat((*surface)->format, backbuffer->surface->format)) + return FALSE; + + new_surface = SDL_ConvertSurface(*surface, backbuffer->surface->format, 0); + + SDL_FreeSurface(*surface); + + *surface = new_surface; + + return TRUE; +} + +SDL_Surface *SDLGetNativeSurface(SDL_Surface *surface) +{ + if (surface == NULL || + backbuffer == NULL || + backbuffer->surface == NULL) + return NULL; + + return SDL_ConvertSurface(surface, backbuffer->surface->format, 0); +} + SDL_Surface *SDL_DisplayFormat(SDL_Surface *surface) { - if (backbuffer == NULL || + if (surface == NULL || + backbuffer == NULL || backbuffer->surface == NULL) return NULL; +#if 0 + boolean same_pixel_format = + equalSDLPixelFormat(surface->format, backbuffer->surface->format); + + printf("::: SDL_DisplayFormat: %08x -> %08x [%08x, %08x, %08x -> %08x, %08x, %08x] [%d, %d -> %d, %d] => %s\n", + surface->format->format, + backbuffer->surface->format->format, + surface->format->Rmask, + surface->format->Gmask, + surface->format->Bmask, + backbuffer->surface->format->Rmask, + backbuffer->surface->format->Gmask, + backbuffer->surface->format->Bmask, + surface->format->BitsPerPixel, + surface->format->BytesPerPixel, + backbuffer->surface->format->BitsPerPixel, + backbuffer->surface->format->BytesPerPixel, + (same_pixel_format ? "SAME" : "DIFF")); +#endif + return SDL_ConvertSurface(surface, backbuffer->surface->format, 0); } + +#else + +boolean SDLSetNativeSurface(SDL_Surface **surface) +{ + SDL_Surface *new_surface; + + if (surface == NULL) + return FALSE; + + new_surface = SDL_DisplayFormat(*surface); + + if (new_surface == NULL) + Error(ERR_EXIT, "SDL_DisplayFormat() failed: %s", SDL_GetError()); + + SDL_FreeSurface(*surface); + + *surface = new_surface; + + return TRUE; +} + +SDL_Surface *SDLGetNativeSurface(SDL_Surface *surface) +{ + SDL_Surface *new_surface = SDL_DisplayFormat(surface); + + if (new_surface == NULL) + Error(ERR_EXIT, "SDL_DisplayFormat() failed: %s", SDL_GetError()); + + return new_surface; +} + #endif void SDLInitVideoDisplay(void) @@ -515,8 +614,17 @@ static SDL_Surface *SDLCreateScreen(DrawBuffer **backbuffer, if (sdl_window != NULL) { +#if 0 + /* if SDL_CreateRenderer() is called from within a VirtualBox Windows VM + *without* enabling 2D/3D acceleration and/or guest additions installed, + it will crash if flags are *not* set to SDL_RENDERER_SOFTWARE (because + it will try to use accelerated graphics and apparently fails miserably) */ + if (sdl_renderer == NULL) + sdl_renderer = SDL_CreateRenderer(sdl_window, -1, SDL_RENDERER_SOFTWARE); +#else if (sdl_renderer == NULL) sdl_renderer = SDL_CreateRenderer(sdl_window, -1, 0); +#endif if (sdl_renderer != NULL) { @@ -531,6 +639,11 @@ static SDL_Surface *SDLCreateScreen(DrawBuffer **backbuffer, if (sdl_texture != NULL) { +#if 1 + // use SDL default values for RGB masks and no alpha channel + new_surface = SDL_CreateRGBSurface(0, width, height, 32, 0,0,0, 0); +#else + #if 1 // (do not use alpha channel) new_surface = SDL_CreateRGBSurface(0, width, height, 32, @@ -545,6 +658,8 @@ static SDL_Surface *SDLCreateScreen(DrawBuffer **backbuffer, 0x0000FF00, 0x000000FF, 0xFF000000); +#endif + #endif if (new_surface == NULL) @@ -941,9 +1056,22 @@ void SDLRedrawWindow() } #endif -void SDLCreateBitmapContent(Bitmap *new_bitmap, int width, int height, +void SDLCreateBitmapContent(Bitmap *bitmap, int width, int height, int depth) { +#if 1 + SDL_Surface *surface = + SDL_CreateRGBSurface(SURFACE_FLAGS, width, height, depth, 0,0,0, 0); + + if (surface == NULL) + Error(ERR_EXIT, "SDL_CreateRGBSurface() failed: %s", SDL_GetError()); + + SDLSetNativeSurface(&surface); + + bitmap->surface = surface; + +#else + SDL_Surface *surface_tmp, *surface_native; if ((surface_tmp = SDL_CreateRGBSurface(SURFACE_FLAGS, width, height, depth, @@ -957,6 +1085,7 @@ void SDLCreateBitmapContent(Bitmap *new_bitmap, int width, int height, SDL_FreeSurface(surface_tmp); new_bitmap->surface = surface_native; +#endif } void SDLFreeBitmapPointers(Bitmap *bitmap) @@ -2049,6 +2178,80 @@ int zoomSurfaceRGBA_scaleDownBy2(SDL_Surface *src, SDL_Surface *dst) return 0; } +#if 1 + +int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface *dst) +{ + int x, y, *sax, *say, *csax, *csay; + float sx, sy; + tColorRGBA *sp, *csp, *csp0, *dp; + int dgap; + + /* use specialized zoom function when scaling down to exactly half size */ + if (src->w == 2 * dst->w && + src->h == 2 * dst->h) + return zoomSurfaceRGBA_scaleDownBy2(src, dst); + +#if 0 + printf("::: zoomSurfaceRGBA: %d, %d -> %d, %d\n", + src->w, src->h, dst->w, dst->h); +#endif + + /* variable setup */ + sx = (float) src->w / (float) dst->w; + sy = (float) src->h / (float) dst->h; + + /* allocate memory for row increments */ + csax = sax = (int *)checked_malloc((dst->w + 1) * sizeof(Uint32)); + csay = say = (int *)checked_malloc((dst->h + 1) * sizeof(Uint32)); + + /* precalculate row increments */ + for (x = 0; x <= dst->w; x++) + *csax++ = (int)(sx * x); + + for (y = 0; y <= dst->h; y++) + *csay++ = (int)(sy * y); + + /* pointer setup */ + sp = csp = csp0 = (tColorRGBA *) src->pixels; + dp = (tColorRGBA *) dst->pixels; + dgap = dst->pitch - dst->w * 4; + + csay = say; + for (y = 0; y < dst->h; y++) + { + sp = csp; + csax = sax; + + for (x = 0; x < dst->w; x++) + { + /* draw */ + *dp = *sp; + + /* advance source pointers */ + csax++; + sp = csp + *csax; + + /* advance destination pointer */ + dp++; + } + + /* advance source pointer */ + csay++; + csp = (tColorRGBA *) ((Uint8 *) csp0 + *csay * src->pitch); + + /* advance destination pointers */ + dp = (tColorRGBA *) ((Uint8 *) dp + dgap); + } + + free(sax); + free(say); + + return 0; +} + +#else + int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface *dst) { int x, y, sx, sy, *sax, *say, *csax, *csay, csx, csy; @@ -2133,6 +2336,8 @@ int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface *dst) return 0; } +#endif + /* ----------------------------------------------------------------------------- 8 bit zoomer @@ -2263,7 +2468,7 @@ SDL_Surface *zoomSurface(SDL_Surface *src, int dst_width, int dst_height) else { /* new source surface is 32 bit with a defined RGB ordering */ - zoom_src = SDL_CreateRGBSurface(SDL_SWSURFACE, src->w, src->h, 32, + zoom_src = SDL_CreateRGBSurface(SURFACE_FLAGS, src->w, src->h, 32, 0x000000ff, 0x0000ff00, 0x00ff0000, 0); SDL_BlitSurface(src, NULL, zoom_src, NULL); is_32bit = TRUE; @@ -2274,7 +2479,7 @@ SDL_Surface *zoomSurface(SDL_Surface *src, int dst_width, int dst_height) if (is_32bit) { /* target surface is 32 bit with source RGBA/ABGR ordering */ - zoom_dst = SDL_CreateRGBSurface(SDL_SWSURFACE, dst_width, dst_height, 32, + zoom_dst = SDL_CreateRGBSurface(SURFACE_FLAGS, dst_width, dst_height, 32, zoom_src->format->Rmask, zoom_src->format->Gmask, zoom_src->format->Bmask, 0); @@ -2282,7 +2487,7 @@ SDL_Surface *zoomSurface(SDL_Surface *src, int dst_width, int dst_height) else { /* target surface is 8 bit */ - zoom_dst = SDL_CreateRGBSurface(SDL_SWSURFACE, dst_width, dst_height, 8, + zoom_dst = SDL_CreateRGBSurface(SURFACE_FLAGS, dst_width, dst_height, 8, 0, 0, 0, 0); } @@ -2318,25 +2523,92 @@ SDL_Surface *zoomSurface(SDL_Surface *src, int dst_width, int dst_height) return zoom_dst; } +#if 1 + +Bitmap *SDLZoomBitmap(Bitmap *src_bitmap, int dst_width, int dst_height) +{ +#if 1 + + Bitmap *dst_bitmap = CreateBitmapStruct(); + SDL_Surface **dst_surface = &dst_bitmap->surface; + + dst_width = MAX(1, dst_width); /* prevent zero bitmap width */ + dst_height = MAX(1, dst_height); /* prevent zero bitmap height */ + + dst_bitmap->width = dst_width; + dst_bitmap->height = dst_height; + + /* create zoomed temporary surface from source surface */ + *dst_surface = zoomSurface(src_bitmap->surface, dst_width, dst_height); + + /* create native format destination surface from zoomed temporary surface */ + SDLSetNativeSurface(dst_surface); + + return dst_bitmap; + +#else + + Bitmap *dst_bitmap = CreateBitmapStruct(); + SDL_Surface *sdl_surface_tmp; + + dst_width = MAX(1, dst_width); /* prevent zero bitmap width */ + dst_height = MAX(1, dst_height); /* prevent zero bitmap height */ + + dst_bitmap->width = dst_width; + dst_bitmap->height = dst_height; + + print_timestamp_init("SDLZoomBitmap"); + + /* create zoomed temporary surface from source surface */ + sdl_surface_tmp = zoomSurface(src_bitmap->surface, dst_width, dst_height); + print_timestamp_time("zoomSurface"); + + /* create native format destination surface from zoomed temporary surface */ + dst_bitmap->surface = SDL_DisplayFormat(sdl_surface_tmp); + print_timestamp_time("SDL_DisplayFormat"); + + /* free temporary surface */ + SDL_FreeSurface(sdl_surface_tmp); + print_timestamp_time("SDL_FreeSurface"); + + print_timestamp_done("SDLZoomBitmap"); + + return dst_bitmap; + +#endif +} + +#else + void SDLZoomBitmap(Bitmap *src_bitmap, Bitmap *dst_bitmap) { SDL_Surface *sdl_surface_tmp; int dst_width = dst_bitmap->width; int dst_height = dst_bitmap->height; + print_timestamp_init("SDLZoomBitmap"); + /* throw away old destination surface */ SDL_FreeSurface(dst_bitmap->surface); + print_timestamp_time("SDL_FreeSurface"); /* create zoomed temporary surface from source surface */ sdl_surface_tmp = zoomSurface(src_bitmap->surface, dst_width, dst_height); + print_timestamp_time("zoomSurface"); /* create native format destination surface from zoomed temporary surface */ dst_bitmap->surface = SDL_DisplayFormat(sdl_surface_tmp); + print_timestamp_time("SDL_DisplayFormat"); /* free temporary surface */ SDL_FreeSurface(sdl_surface_tmp); + print_timestamp_time("SDL_FreeSurface"); + + print_timestamp_done("SDLZoomBitmap"); } +#endif + /* ========================================================================= */ /* load image to bitmap */ @@ -2364,12 +2636,21 @@ Bitmap *SDLLoadImage(char *filename) UPDATE_BUSY_STATE(); /* create native non-transparent surface for current image */ +#if 1 + if ((new_bitmap->surface = SDLGetNativeSurface(sdl_image_tmp)) == NULL) + { + SetError("SDL_DisplayFormat(): %s", SDL_GetError()); + + return NULL; + } +#else if ((new_bitmap->surface = SDL_DisplayFormat(sdl_image_tmp)) == NULL) { SetError("SDL_DisplayFormat(): %s", SDL_GetError()); return NULL; } +#endif print_timestamp_time("SDL_DisplayFormat (opaque)"); @@ -2378,12 +2659,21 @@ Bitmap *SDLLoadImage(char *filename) /* create native transparent surface for current image */ SDL_SetColorKey(sdl_image_tmp, SET_TRANSPARENT_PIXEL, SDL_MapRGB(sdl_image_tmp->format, 0x00, 0x00, 0x00)); +#if 1 + if ((new_bitmap->surface_masked = SDLGetNativeSurface(sdl_image_tmp)) == NULL) + { + SetError("SDL_DisplayFormat(): %s", SDL_GetError()); + + return NULL; + } +#else if ((new_bitmap->surface_masked = SDL_DisplayFormat(sdl_image_tmp)) == NULL) { SetError("SDL_DisplayFormat(): %s", SDL_GetError()); return NULL; } +#endif print_timestamp_time("SDL_DisplayFormat (masked)");