X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Flibgame%2Fsdl.c;h=e460de3b434ab97dd5726f42340c636fe12208c2;hb=e5a0a3097d6a6c3afea01b3deeee9b206982ec1d;hp=14d4830b00587c9ef9ce43a0b132379b330b22df;hpb=c9433eab5c4317ed4f89164b386a7d33562e29be;p=rocksndiamonds.git diff --git a/src/libgame/sdl.c b/src/libgame/sdl.c index 14d4830b..e460de3b 100644 --- a/src/libgame/sdl.c +++ b/src/libgame/sdl.c @@ -26,9 +26,9 @@ /* functions from SGE library */ inline void sge_Line(SDL_Surface *, Sint16, Sint16, Sint16, Sint16, Uint32); -#ifdef PLATFORM_WIN32 +/* #ifdef PLATFORM_WIN32 */ #define FULLSCREEN_BUG -#endif +/* #endif */ /* stuff needed to work around SDL/Windows fullscreen drawing bug */ static int fullscreen_width; @@ -40,6 +40,8 @@ static int video_yoffset; inline void SDLInitVideoDisplay(void) { + putenv("SDL_VIDEO_CENTERED=1"); + /* initialize SDL video */ if (SDL_InitSubSystem(SDL_INIT_VIDEO) < 0) Error(ERR_EXIT, "SDL_InitSubSystem() failed: %s", SDL_GetError()); @@ -69,7 +71,7 @@ inline void SDLInitVideoBuffer(DrawBuffer **backbuffer, DrawWindow **window, fullscreen_yoffset = 0; #ifdef FULLSCREEN_BUG - for (i=0; screen_xy[i][0] != -1; i++) + for (i = 0; screen_xy[i][0] != -1; i++) { if (video.width <= screen_xy[i][0] && video.height <= screen_xy[i][1]) { @@ -170,10 +172,38 @@ inline boolean SDLSetVideoMode(DrawBuffer **backbuffer, boolean fullscreen) return success; } +inline void SDLCreateBitmapContent(Bitmap *new_bitmap, + int width, int height, int depth) +{ + SDL_Surface *surface_tmp, *surface_native; + + if ((surface_tmp = SDL_CreateRGBSurface(SURFACE_FLAGS, width, height, depth, + 0, 0, 0, 0)) + == NULL) + Error(ERR_EXIT, "SDL_CreateRGBSurface() failed: %s", SDL_GetError()); + + if ((surface_native = SDL_DisplayFormat(surface_tmp)) == NULL) + Error(ERR_EXIT, "SDL_DisplayFormat() failed: %s", SDL_GetError()); + + SDL_FreeSurface(surface_tmp); + + new_bitmap->surface = surface_native; +} + +inline void SDLFreeBitmapPointers(Bitmap *bitmap) +{ + if (bitmap->surface) + SDL_FreeSurface(bitmap->surface); + if (bitmap->surface_masked) + SDL_FreeSurface(bitmap->surface_masked); + bitmap->surface = NULL; + bitmap->surface_masked = NULL; +} + inline void SDLCopyArea(Bitmap *src_bitmap, Bitmap *dst_bitmap, int src_x, int src_y, int width, int height, - int dst_x, int dst_y, int copy_mode) + int dst_x, int dst_y, int mask_mode) { Bitmap *real_dst_bitmap = (dst_bitmap == window ? backbuffer : dst_bitmap); SDL_Rect src_rect, dst_rect; @@ -205,7 +235,7 @@ inline void SDLCopyArea(Bitmap *src_bitmap, Bitmap *dst_bitmap, dst_rect.h = height; if (src_bitmap != backbuffer || dst_bitmap != window) - SDL_BlitSurface((copy_mode == SDLCOPYAREA_MASKED ? + SDL_BlitSurface((mask_mode == BLIT_MASKED ? src_bitmap->surface_masked : src_bitmap->surface), &src_rect, real_dst_bitmap->surface, &dst_rect); @@ -214,13 +244,10 @@ inline void SDLCopyArea(Bitmap *src_bitmap, Bitmap *dst_bitmap, } inline void SDLFillRectangle(Bitmap *dst_bitmap, int x, int y, - int width, int height, unsigned int color) + int width, int height, Uint32 color) { Bitmap *real_dst_bitmap = (dst_bitmap == window ? backbuffer : dst_bitmap); SDL_Rect rect; - unsigned int color_r = (color >> 16) && 0xff; - unsigned int color_g = (color >> 8) && 0xff; - unsigned int color_b = (color >> 0) && 0xff; #ifdef FULLSCREEN_BUG if (dst_bitmap == backbuffer || dst_bitmap == window) @@ -235,22 +262,17 @@ inline void SDLFillRectangle(Bitmap *dst_bitmap, int x, int y, rect.w = width; rect.h = height; - SDL_FillRect(real_dst_bitmap->surface, &rect, - SDL_MapRGB(real_dst_bitmap->surface->format, - color_r, color_g, color_b)); + SDL_FillRect(real_dst_bitmap->surface, &rect, color); if (dst_bitmap == window) SDL_UpdateRect(backbuffer->surface, x, y, width, height); } inline void SDLDrawSimpleLine(Bitmap *dst_bitmap, int from_x, int from_y, - int to_x, int to_y, unsigned int color) + int to_x, int to_y, Uint32 color) { SDL_Surface *surface = dst_bitmap->surface; SDL_Rect rect; - unsigned int color_r = (color >> 16) & 0xff; - unsigned int color_g = (color >> 8) & 0xff; - unsigned int color_b = (color >> 0) & 0xff; if (from_x > to_x) swap_numbers(&from_x, &to_x); @@ -271,8 +293,7 @@ inline void SDLDrawSimpleLine(Bitmap *dst_bitmap, int from_x, int from_y, } #endif - SDL_FillRect(surface, &rect, - SDL_MapRGB(surface->format, color_r, color_g, color_b)); + SDL_FillRect(surface, &rect, color); } inline void SDLDrawLine(Bitmap *dst_bitmap, int from_x, int from_y, @@ -298,11 +319,11 @@ inline void SDLDrawLines(SDL_Surface *surface, struct XY *points, int i, x, y; int line_width = 4; - for (i=0; isurface; + SDL_Surface *surface = src_bitmap->surface; #ifdef FULLSCREEN_BUG - if (dst_bitmap == backbuffer || dst_bitmap == window) + if (src_bitmap == backbuffer || src_bitmap == window) { x += video_xoffset; y += video_yoffset; @@ -377,7 +398,7 @@ inline Pixel SDLGetPixel(Bitmap *dst_bitmap, int x, int y) /* ========================================================================= */ -/* The following functions have been taken from the SGE library */ +/* The following functions were taken from the SGE library */ /* (SDL Graphics Extension Library) by Anders Lindström */ /* http://www.etek.chalmers.se/~e8cal1/sge/index.html */ /* ========================================================================= */ @@ -506,9 +527,9 @@ void sge_PutPixel(SDL_Surface *surface, Sint16 x, Sint16 y, Uint32 color) } void sge_PutPixelRGB(SDL_Surface *surface, Sint16 x, Sint16 y, - Uint8 R, Uint8 G, Uint8 B) + Uint8 r, Uint8 g, Uint8 b) { - sge_PutPixel(surface, x, y, SDL_MapRGB(surface->format, R, G, B)); + sge_PutPixel(surface, x, y, SDL_MapRGB(surface->format, r, g, b)); } Sint32 sge_CalcYPitch(SDL_Surface *dest, Sint16 y) @@ -822,6 +843,366 @@ void sge_LineRGB(SDL_Surface *Surface, Sint16 x1, Sint16 y1, Sint16 x2, sge_Line(Surface, x1, y1, x2, y2, SDL_MapRGB(Surface->format, R, G, B)); } +inline void SDLPutPixel(Bitmap *dst_bitmap, int x, int y, Pixel pixel) +{ +#ifdef FULLSCREEN_BUG + if (dst_bitmap == backbuffer || dst_bitmap == window) + { + x += video_xoffset; + y += video_yoffset; + } +#endif + + sge_PutPixel(dst_bitmap->surface, x, y, pixel); +} + + +/* + ----------------------------------------------------------------------------- + quick (no, it's slow) and dirty hack to "invert" rectangle inside SDL surface + ----------------------------------------------------------------------------- +*/ + +inline void SDLInvertArea(Bitmap *bitmap, int src_x, int src_y, + int width, int height, Uint32 color) +{ + int x, y; + + for (y = src_y; y < src_y + height; y++) + { + for (x = src_x; x < src_x + width; x++) + { + Uint32 pixel = SDLGetPixel(bitmap, x, y); + + SDLPutPixel(bitmap, x, y, pixel == BLACK_PIXEL ? color : BLACK_PIXEL); + } + } +} + +inline void SDLCopyInverseMasked(Bitmap *src_bitmap, Bitmap *dst_bitmap, + int src_x, int src_y, int width, int height, + int dst_x, int dst_y) +{ + int x, y; + + for (y = 0; y < height; y++) + { + for (x = 0; x < width; x++) + { + Uint32 pixel = SDLGetPixel(src_bitmap, src_x + x, src_y + y); + + if (pixel != BLACK_PIXEL) + SDLPutPixel(dst_bitmap, dst_x + x, dst_y + y, BLACK_PIXEL); + } + } +} + + +/* ========================================================================= */ +/* The following functions were taken from the SDL_gfx library version 2.0.3 */ +/* (Rotozoomer) by Andreas Schiffler */ +/* http://www.ferzkopp.net/Software/SDL_gfx-2.0/index.html */ +/* ========================================================================= */ + +/* + ----------------------------------------------------------------------------- + 32 bit zoomer + + zoomes 32bit RGBA/ABGR 'src' surface to 'dst' surface. + ----------------------------------------------------------------------------- +*/ + +typedef struct +{ + Uint8 r; + Uint8 g; + Uint8 b; + Uint8 a; +} tColorRGBA; + +int zoomSurfaceRGBA(SDL_Surface *src, SDL_Surface *dst) +{ + int x, y, sx, sy, *sax, *say, *csax, *csay, csx, csy; + tColorRGBA *sp, *csp, *dp; + int sgap, dgap; + + /* variable setup */ + sx = (int) (65536.0 * (float) src->w / (float) dst->w); + sy = (int) (65536.0 * (float) src->h / (float) dst->h); + + /* allocate memory for row increments */ + sax = (int *)checked_malloc((dst->w + 1) * sizeof(Uint32)); + say = (int *)checked_malloc((dst->h + 1) * sizeof(Uint32)); + + /* precalculate row increments */ + csx = 0; + csax = sax; + for (x = 0; x <= dst->w; x++) + { + *csax = csx; + csax++; + csx &= 0xffff; + csx += sx; + } + + csy = 0; + csay = say; + for (y = 0; y <= dst->h; y++) + { + *csay = csy; + csay++; + csy &= 0xffff; + csy += sy; + } + + /* pointer setup */ + sp = csp = (tColorRGBA *) src->pixels; + dp = (tColorRGBA *) dst->pixels; + sgap = src->pitch - src->w * 4; + 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 += (*csax >> 16); + + /* advance destination pointer */ + dp++; + } + + /* advance source pointer */ + csay++; + csp = (tColorRGBA *) ((Uint8 *) csp + (*csay >> 16) * src->pitch); + + /* advance destination pointers */ + dp = (tColorRGBA *) ((Uint8 *) dp + dgap); + } + + free(sax); + free(say); + + return 0; +} + +/* + ----------------------------------------------------------------------------- + 8 bit zoomer + + zoomes 8 bit palette/Y 'src' surface to 'dst' surface + ----------------------------------------------------------------------------- +*/ + +int zoomSurfaceY(SDL_Surface * src, SDL_Surface * dst) +{ + Uint32 x, y, sx, sy, *sax, *say, *csax, *csay, csx, csy; + Uint8 *sp, *dp, *csp; + int dgap; + + /* variable setup */ + sx = (Uint32) (65536.0 * (float) src->w / (float) dst->w); + sy = (Uint32) (65536.0 * (float) src->h / (float) dst->h); + + /* allocate memory for row increments */ + sax = (Uint32 *)checked_malloc(dst->w * sizeof(Uint32)); + say = (Uint32 *)checked_malloc(dst->h * sizeof(Uint32)); + + /* precalculate row increments */ + csx = 0; + csax = sax; + for (x = 0; x < dst->w; x++) + { + csx += sx; + *csax = (csx >> 16); + csx &= 0xffff; + csax++; + } + + csy = 0; + csay = say; + for (y = 0; y < dst->h; y++) + { + csy += sy; + *csay = (csy >> 16); + csy &= 0xffff; + csay++; + } + + csx = 0; + csax = sax; + for (x = 0; x < dst->w; x++) + { + csx += (*csax); + csax++; + } + + csy = 0; + csay = say; + for (y = 0; y < dst->h; y++) + { + csy += (*csay); + csay++; + } + + /* pointer setup */ + sp = csp = (Uint8 *) src->pixels; + dp = (Uint8 *) dst->pixels; + dgap = dst->pitch - dst->w; + + /* draw */ + csay = say; + for (y = 0; y < dst->h; y++) + { + csax = sax; + sp = csp; + for (x = 0; x < dst->w; x++) + { + /* draw */ + *dp = *sp; + + /* advance source pointers */ + sp += (*csax); + csax++; + + /* advance destination pointer */ + dp++; + } + + /* advance source pointer (for row) */ + csp += ((*csay) * src->pitch); + csay++; + + /* advance destination pointers */ + dp += dgap; + } + + free(sax); + free(say); + + return 0; +} + +/* + ----------------------------------------------------------------------------- + zoomSurface() + + Zooms a 32bit or 8bit 'src' surface to newly created 'dst' surface. + 'zoomx' and 'zoomy' are scaling factors for width and height. + If the surface is not 8bit or 32bit RGBA/ABGR it will be converted + into a 32bit RGBA format on the fly. + ----------------------------------------------------------------------------- +*/ + +SDL_Surface *zoomSurface(SDL_Surface *src, int dst_width, int dst_height) +{ + SDL_Surface *zoom_src = NULL; + SDL_Surface *zoom_dst = NULL; + boolean is_converted = FALSE; + boolean is_32bit; + int i; + + if (src == NULL) + return NULL; + + /* determine if source surface is 32 bit or 8 bit */ + is_32bit = (src->format->BitsPerPixel == 32); + + if (is_32bit || src->format->BitsPerPixel == 8) + { + /* use source surface 'as is' */ + zoom_src = src; + } + else + { + /* new source surface is 32 bit with a defined RGB ordering */ + zoom_src = SDL_CreateRGBSurface(SDL_SWSURFACE, src->w, src->h, 32, + 0x000000ff, 0x0000ff00, 0x00ff0000, 0); + SDL_BlitSurface(src, NULL, zoom_src, NULL); + is_32bit = TRUE; + is_converted = TRUE; + } + + /* allocate surface to completely contain the zoomed surface */ + 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_src->format->Rmask, + zoom_src->format->Gmask, + zoom_src->format->Bmask, 0); + } + else + { + /* target surface is 8 bit */ + zoom_dst = SDL_CreateRGBSurface(SDL_SWSURFACE, dst_width, dst_height, 8, + 0, 0, 0, 0); + } + + /* lock source surface */ + SDL_LockSurface(zoom_src); + + /* check which kind of surface we have */ + if (is_32bit) + { + /* call the 32 bit transformation routine to do the zooming */ + zoomSurfaceRGBA(zoom_src, zoom_dst); + } + else + { + /* copy palette */ + for (i = 0; i < zoom_src->format->palette->ncolors; i++) + zoom_dst->format->palette->colors[i] = + zoom_src->format->palette->colors[i]; + zoom_dst->format->palette->ncolors = zoom_src->format->palette->ncolors; + + /* call the 8 bit transformation routine to do the zooming */ + zoomSurfaceY(zoom_src, zoom_dst); + } + + /* unlock source surface */ + SDL_UnlockSurface(zoom_src); + + /* free temporary surface */ + if (is_converted) + SDL_FreeSurface(zoom_src); + + /* return destination surface */ + return zoom_dst; +} + +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; + + /* throw away old destination surface */ + SDL_FreeSurface(dst_bitmap->surface); + + /* create zoomed temporary surface from source surface */ + sdl_surface_tmp = zoomSurface(src_bitmap->surface, dst_width, dst_height); + + /* create native format destination surface from zoomed temporary surface */ + dst_bitmap->surface = SDL_DisplayFormat(sdl_surface_tmp); + + /* free temporary surface */ + SDL_FreeSurface(sdl_surface_tmp); +} + + +/* ========================================================================= */ +/* load image to bitmap */ +/* ========================================================================= */ + Bitmap *SDLLoadImage(char *filename) { Bitmap *new_bitmap = CreateBitmapStruct(); @@ -860,21 +1241,61 @@ Bitmap *SDLLoadImage(char *filename) } +/* ------------------------------------------------------------------------- */ +/* custom cursor fuctions */ +/* ------------------------------------------------------------------------- */ + +static SDL_Cursor *create_cursor(struct MouseCursorInfo *cursor_info) +{ + return SDL_CreateCursor(cursor_info->data, cursor_info->mask, + cursor_info->width, cursor_info->height, + cursor_info->hot_x, cursor_info->hot_y); +} + +void SDLSetMouseCursor(struct MouseCursorInfo *cursor_info) +{ + static struct MouseCursorInfo *last_cursor_info = NULL; + static struct MouseCursorInfo *last_cursor_info2 = NULL; + static SDL_Cursor *cursor_default = NULL; + static SDL_Cursor *cursor_current = NULL; + + /* if invoked for the first time, store the SDL default cursor */ + if (cursor_default == NULL) + cursor_default = SDL_GetCursor(); + + /* only create new cursor if cursor info (custom only) has changed */ + if (cursor_info != NULL && cursor_info != last_cursor_info) + { + cursor_current = create_cursor(cursor_info); + last_cursor_info = cursor_info; + } + + /* only set new cursor if cursor info (custom or NULL) has changed */ + if (cursor_info != last_cursor_info2) + SDL_SetCursor(cursor_info ? cursor_current : cursor_default); + + last_cursor_info2 = cursor_info; +} + + /* ========================================================================= */ /* audio functions */ /* ========================================================================= */ inline void SDLOpenAudio(void) { + if (strcmp(setup.system.sdl_audiodriver, ARG_DEFAULT) != 0) + putenv(getStringCat2("SDL_AUDIODRIVER=", setup.system.sdl_audiodriver)); + if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) { Error(ERR_WARN, "SDL_InitSubSystem() failed: %s", SDL_GetError()); return; } - if (Mix_OpenAudio(DEFAULT_AUDIO_SAMPLE_RATE, AUDIO_S16, + if (Mix_OpenAudio(DEFAULT_AUDIO_SAMPLE_RATE, MIX_DEFAULT_FORMAT, AUDIO_NUM_CHANNELS_STEREO, - DEFAULT_AUDIO_FRAGMENT_SIZE) < 0) + setup.system.audio_fragment_size) < 0) { Error(ERR_WARN, "Mix_OpenAudio() failed: %s", SDL_GetError()); return; @@ -926,14 +1347,14 @@ inline void SDLNextEvent(Event *event) } else if (event->type == EVENT_MOTIONNOTIFY) { - if (((ButtonEvent *)event)->x > video_xoffset) - ((ButtonEvent *)event)->x -= video_xoffset; + if (((MotionEvent *)event)->x > video_xoffset) + ((MotionEvent *)event)->x -= video_xoffset; else - ((ButtonEvent *)event)->x = 0; - if (((ButtonEvent *)event)->y > video_yoffset) - ((ButtonEvent *)event)->y -= video_yoffset; + ((MotionEvent *)event)->x = 0; + if (((MotionEvent *)event)->y > video_yoffset) + ((MotionEvent *)event)->y -= video_yoffset; else - ((ButtonEvent *)event)->y = 0; + ((MotionEvent *)event)->y = 0; } #endif } @@ -998,6 +1419,7 @@ void HandleJoystickEvent(Event *event) void SDLInitJoysticks() { static boolean sdl_joystick_subsystem_initialized = FALSE; + boolean print_warning = !sdl_joystick_subsystem_initialized; int i; if (!sdl_joystick_subsystem_initialized) @@ -1011,17 +1433,26 @@ void SDLInitJoysticks() } } - for (i=0; i= SDL_NumJoysticks()) + { + if (setup.input[i].use_joystick && print_warning) + Error(ERR_WARN, "cannot find joystick %d", joystick_nr); + joystick_nr = -1; + } /* misuse joystick file descriptor variable to store joystick number */ joystick.fd[i] = joystick_nr; + if (joystick_nr == -1) + continue; + /* this allows subsequent calls to 'InitJoysticks' for re-initialization */ if (SDLCheckJoystickOpened(joystick_nr)) SDLCloseJoystick(joystick_nr); @@ -1031,7 +1462,9 @@ void SDLInitJoysticks() if (!SDLOpenJoystick(joystick_nr)) { - Error(ERR_WARN, "cannot open joystick %d", joystick_nr); + if (print_warning) + Error(ERR_WARN, "cannot open joystick %d", joystick_nr); + continue; }