| /* |
| SDL - Simple DirectMedia Layer |
| Copyright (C) 1997-2006 Sam Lantinga |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| This library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with this library; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| |
| Sam Lantinga |
| slouken@libsdl.org |
| */ |
| #include "SDL_config.h" |
| |
| /* This file contains functions for backwards compatibility with SDL 1.2 */ |
| |
| #include "SDL.h" |
| #include "SDL_syswm.h" |
| |
| #include "video/SDL_sysvideo.h" |
| #include "video/SDL_pixels_c.h" |
| |
| |
| static SDL_WindowID SDL_VideoWindow; |
| static SDL_TextureID SDL_VideoTexture; |
| static SDL_Surface *SDL_VideoSurface; |
| static SDL_Surface *SDL_ShadowSurface; |
| static SDL_Surface *SDL_PublicSurface; |
| static char *wm_title; |
| |
| char * |
| SDL_AudioDriverName(char *namebuf, int maxlen) |
| { |
| const char *name = SDL_GetCurrentAudioDriver(); |
| if (name) { |
| SDL_strlcpy(namebuf, name, maxlen); |
| return namebuf; |
| } |
| return NULL; |
| } |
| |
| char * |
| SDL_VideoDriverName(char *namebuf, int maxlen) |
| { |
| const char *name = SDL_GetCurrentVideoDriver(); |
| if (name) { |
| SDL_strlcpy(namebuf, name, maxlen); |
| return namebuf; |
| } |
| return NULL; |
| } |
| |
| const SDL_VideoInfo * |
| SDL_GetVideoInfo(void) |
| { |
| static SDL_VideoInfo info; |
| |
| /* Memory leak, compatibility code, who cares? */ |
| if (!info.vfmt && SDL_GetDesktopDisplayMode()) { |
| int bpp; |
| Uint32 Rmask, Gmask, Bmask, Amask; |
| |
| SDL_PixelFormatEnumToMasks(SDL_GetDesktopDisplayMode()->format, &bpp, |
| &Rmask, &Gmask, &Bmask, &Amask); |
| info.vfmt = SDL_AllocFormat(bpp, Rmask, Gmask, Bmask, Amask); |
| } |
| return &info; |
| } |
| |
| int |
| SDL_VideoModeOK(int width, int height, int bpp, Uint32 flags) |
| { |
| int i, actual_bpp = 0; |
| |
| if (!SDL_GetVideoDevice()) { |
| return 0; |
| } |
| |
| if (!(flags & SDL_FULLSCREEN)) { |
| return SDL_BITSPERPIXEL(SDL_GetDesktopDisplayMode()->format); |
| } |
| |
| for (i = 0; i < SDL_GetNumDisplayModes(); ++i) { |
| const SDL_DisplayMode *mode = SDL_GetDisplayMode(i); |
| if (!mode->w || !mode->h || (width == mode->w && height == mode->h)) { |
| if (!mode->format) { |
| return bpp; |
| } |
| if (SDL_BITSPERPIXEL(mode->format) >= (Uint32) bpp) { |
| actual_bpp = SDL_BITSPERPIXEL(mode->format); |
| } |
| } |
| } |
| return actual_bpp; |
| } |
| |
| SDL_Rect ** |
| SDL_ListModes(SDL_PixelFormat * format, Uint32 flags) |
| { |
| int i, nmodes; |
| SDL_Rect **modes; |
| |
| if (!SDL_GetVideoDevice()) { |
| return NULL; |
| } |
| |
| if (!(flags & SDL_FULLSCREEN)) { |
| return (SDL_Rect **) (-1); |
| } |
| |
| /* Memory leak, but this is a compatibility function, who cares? */ |
| nmodes = 0; |
| modes = NULL; |
| for (i = 0; i < SDL_GetNumDisplayModes(); ++i) { |
| const SDL_DisplayMode *mode = SDL_GetDisplayMode(i); |
| if (!mode->w || !mode->h) { |
| return (SDL_Rect **) (-1); |
| } |
| if (SDL_BITSPERPIXEL(mode->format) != format->BitsPerPixel) { |
| continue; |
| } |
| if (nmodes > 0 && modes[nmodes - 1]->w == mode->w |
| && modes[nmodes - 1]->h == mode->h) { |
| continue; |
| } |
| |
| modes = SDL_realloc(modes, (nmodes + 2) * sizeof(*modes)); |
| if (!modes) { |
| return NULL; |
| } |
| modes[nmodes] = (SDL_Rect *) SDL_malloc(sizeof(SDL_Rect)); |
| if (!modes[nmodes]) { |
| return NULL; |
| } |
| modes[nmodes]->x = 0; |
| modes[nmodes]->y = 0; |
| modes[nmodes]->w = mode->w; |
| modes[nmodes]->h = mode->h; |
| ++nmodes; |
| } |
| if (modes) { |
| modes[nmodes] = NULL; |
| } |
| return modes; |
| } |
| |
| static int |
| SDL_CompatEventFilter(void *userdata, SDL_Event * event) |
| { |
| SDL_Event fake; |
| |
| switch (event->type) { |
| case SDL_WINDOWEVENT: |
| switch (event->window.event) { |
| case SDL_WINDOWEVENT_EXPOSED: |
| if (!SDL_HasEvent(SDL_VIDEOEXPOSEMASK)) { |
| fake.type = SDL_VIDEOEXPOSE; |
| SDL_PushEvent(&fake); |
| } |
| break; |
| case SDL_WINDOWEVENT_RESIZED: |
| fake.type = SDL_VIDEORESIZE; |
| fake.resize.w = event->window.data1; |
| fake.resize.h = event->window.data2; |
| SDL_PushEvent(&fake); |
| break; |
| case SDL_WINDOWEVENT_MINIMIZED: |
| fake.type = SDL_ACTIVEEVENT; |
| fake.active.gain = 0; |
| fake.active.state = SDL_APPACTIVE; |
| SDL_PushEvent(&fake); |
| break; |
| case SDL_WINDOWEVENT_RESTORED: |
| fake.type = SDL_ACTIVEEVENT; |
| fake.active.gain = 1; |
| fake.active.state = SDL_APPACTIVE; |
| SDL_PushEvent(&fake); |
| break; |
| case SDL_WINDOWEVENT_ENTER: |
| fake.type = SDL_ACTIVEEVENT; |
| fake.active.gain = 1; |
| fake.active.state = SDL_APPMOUSEFOCUS; |
| SDL_PushEvent(&fake); |
| break; |
| case SDL_WINDOWEVENT_LEAVE: |
| fake.type = SDL_ACTIVEEVENT; |
| fake.active.gain = 0; |
| fake.active.state = SDL_APPMOUSEFOCUS; |
| SDL_PushEvent(&fake); |
| break; |
| case SDL_WINDOWEVENT_FOCUS_GAINED: |
| fake.type = SDL_ACTIVEEVENT; |
| fake.active.gain = 1; |
| fake.active.state = SDL_APPINPUTFOCUS; |
| SDL_PushEvent(&fake); |
| break; |
| case SDL_WINDOWEVENT_FOCUS_LOST: |
| fake.type = SDL_ACTIVEEVENT; |
| fake.active.gain = 1; |
| fake.active.state = SDL_APPINPUTFOCUS; |
| SDL_PushEvent(&fake); |
| break; |
| case SDL_WINDOWEVENT_CLOSE: |
| fake.type = SDL_QUIT; |
| SDL_PushEvent(&fake); |
| break; |
| } |
| case SDL_KEYDOWN: |
| case SDL_KEYUP: |
| { |
| Uint32 unicode = 0; |
| if (event->key.type == SDL_KEYDOWN && event->key.keysym.sym < 256) { |
| unicode = event->key.keysym.sym; |
| if (unicode >= 'a' && unicode <= 'z') { |
| int shifted = !!(event->key.keysym.mod & KMOD_SHIFT); |
| int capslock = !!(event->key.keysym.mod & KMOD_CAPS); |
| if ((shifted ^ capslock) != 0) { |
| unicode = SDL_toupper(unicode); |
| } |
| } |
| } |
| if (unicode) { |
| event->key.keysym.unicode = unicode; |
| } |
| break; |
| } |
| case SDL_MOUSEWHEEL: |
| { |
| Uint8 button; |
| int selected; |
| int x, y; |
| |
| selected = SDL_SelectMouse(event->wheel.which); |
| SDL_GetMouseState(&x, &y); |
| SDL_SelectMouse(selected); |
| |
| if (event->wheel.motion > 0) { |
| button = SDL_BUTTON_WHEELUP; |
| } else { |
| button = SDL_BUTTON_WHEELDOWN; |
| } |
| |
| fake.button.which = event->wheel.windowID; |
| fake.button.button = button; |
| fake.button.x = x; |
| fake.button.y = y; |
| fake.button.windowID = event->wheel.windowID; |
| |
| fake.type = SDL_MOUSEBUTTONDOWN; |
| fake.button.state = SDL_PRESSED; |
| SDL_PushEvent(&fake); |
| |
| fake.type = SDL_MOUSEBUTTONUP; |
| fake.button.state = SDL_RELEASED; |
| SDL_PushEvent(&fake); |
| break; |
| } |
| |
| } |
| return 1; |
| } |
| |
| static int |
| SDL_VideoPaletteChanged(void *userdata, SDL_Palette * palette) |
| { |
| if (userdata == SDL_ShadowSurface) { |
| /* If the shadow palette changed, make the changes visible */ |
| if (!SDL_VideoSurface->format->palette) { |
| SDL_UpdateRect(SDL_ShadowSurface, 0, 0, 0, 0); |
| } |
| } |
| if (userdata == SDL_VideoSurface) { |
| return SDL_SetDisplayPalette(palette->colors, 0, palette->ncolors); |
| } |
| return 0; |
| } |
| |
| static void |
| GetEnvironmentWindowPosition(int w, int h, int *x, int *y) |
| { |
| const char *window = SDL_getenv("SDL_VIDEO_WINDOW_POS"); |
| const char *center = SDL_getenv("SDL_VIDEO_CENTERED"); |
| if (window) { |
| if (SDL_sscanf(window, "%d,%d", x, y) == 2) { |
| return; |
| } |
| if (SDL_strcmp(window, "center") == 0) { |
| center = window; |
| } |
| } |
| if (center) { |
| const SDL_DisplayMode *current = SDL_GetDesktopDisplayMode(); |
| *x = (current->w - w) / 2; |
| *y = (current->h - h) / 2; |
| } |
| } |
| |
| SDL_Surface * |
| SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags) |
| { |
| const SDL_DisplayMode *desktop_mode; |
| SDL_DisplayMode mode; |
| int window_x = SDL_WINDOWPOS_UNDEFINED; |
| int window_y = SDL_WINDOWPOS_UNDEFINED; |
| Uint32 window_flags; |
| Uint32 desktop_format; |
| Uint32 desired_format; |
| Uint32 surface_flags; |
| |
| if (!SDL_GetVideoDevice()) { |
| if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE) < 0) { |
| return NULL; |
| } |
| } |
| |
| /* Destroy existing window */ |
| SDL_PublicSurface = NULL; |
| if (SDL_ShadowSurface) { |
| SDL_FreeSurface(SDL_ShadowSurface); |
| SDL_ShadowSurface = NULL; |
| } |
| if (SDL_VideoSurface) { |
| SDL_DelPaletteWatch(SDL_VideoSurface->format->palette, |
| SDL_VideoPaletteChanged, NULL); |
| SDL_FreeSurface(SDL_VideoSurface); |
| SDL_VideoSurface = NULL; |
| } |
| if (SDL_VideoWindow) { |
| SDL_GetWindowPosition(SDL_VideoWindow, &window_x, &window_y); |
| } |
| SDL_DestroyWindow(SDL_VideoWindow); |
| |
| /* Set up the event filter */ |
| if (!SDL_GetEventFilter(NULL, NULL)) { |
| SDL_SetEventFilter(SDL_CompatEventFilter, NULL); |
| } |
| |
| /* Create a new window */ |
| window_flags = SDL_WINDOW_SHOWN; |
| if (flags & SDL_FULLSCREEN) { |
| window_flags |= SDL_WINDOW_FULLSCREEN; |
| } |
| if (flags & SDL_OPENGL) { |
| window_flags |= SDL_WINDOW_OPENGL; |
| } |
| if (flags & SDL_RESIZABLE) { |
| window_flags |= SDL_WINDOW_RESIZABLE; |
| } |
| if (flags & SDL_NOFRAME) { |
| window_flags |= SDL_WINDOW_BORDERLESS; |
| } |
| GetEnvironmentWindowPosition(width, height, &window_x, &window_y); |
| SDL_SetFullscreenDisplayMode(NULL); |
| SDL_VideoWindow = |
| SDL_CreateWindow(wm_title, window_x, window_y, width, height, |
| window_flags); |
| if (!SDL_VideoWindow) { |
| return NULL; |
| } |
| |
| window_flags = SDL_GetWindowFlags(SDL_VideoWindow); |
| surface_flags = 0; |
| if (window_flags & SDL_WINDOW_FULLSCREEN) { |
| surface_flags |= SDL_FULLSCREEN; |
| } |
| if (window_flags & SDL_WINDOW_OPENGL) { |
| surface_flags |= SDL_OPENGL; |
| } |
| if (window_flags & SDL_WINDOW_RESIZABLE) { |
| surface_flags |= SDL_RESIZABLE; |
| } |
| if (window_flags & SDL_WINDOW_BORDERLESS) { |
| surface_flags |= SDL_NOFRAME; |
| } |
| |
| /* Set up the desired display mode */ |
| desktop_mode = SDL_GetDesktopDisplayMode(); |
| desktop_format = desktop_mode->format; |
| if (desktop_format && ((flags & SDL_ANYFORMAT) |
| || (bpp == SDL_BITSPERPIXEL(desktop_format)))) { |
| desired_format = desktop_format; |
| } else { |
| switch (bpp) { |
| case 0: |
| if (desktop_format) { |
| desired_format = desktop_format; |
| } else { |
| desired_format = SDL_PixelFormat_RGB888; |
| } |
| break; |
| case 8: |
| desired_format = SDL_PixelFormat_Index8; |
| break; |
| case 15: |
| desired_format = SDL_PixelFormat_RGB555; |
| break; |
| case 16: |
| desired_format = SDL_PixelFormat_RGB565; |
| break; |
| case 24: |
| desired_format = SDL_PixelFormat_RGB24; |
| break; |
| case 32: |
| desired_format = SDL_PixelFormat_RGB888; |
| break; |
| default: |
| SDL_SetError("Unsupported bpp in SDL_SetVideoMode()"); |
| return NULL; |
| } |
| } |
| mode.format = desired_format; |
| mode.w = width; |
| mode.h = height; |
| mode.refresh_rate = 0; |
| |
| /* Set the desired display mode */ |
| if (flags & SDL_FULLSCREEN) { |
| if (SDL_SetFullscreenDisplayMode(&mode) < 0) { |
| return NULL; |
| } |
| } |
| |
| /* If we're in OpenGL mode, just create a stub surface and we're done! */ |
| if (flags & SDL_OPENGL) { |
| SDL_VideoSurface = |
| SDL_CreateRGBSurfaceFrom(NULL, width, height, bpp, 0, 0, 0, 0, 0); |
| if (!SDL_VideoSurface) { |
| return NULL; |
| } |
| SDL_VideoSurface->flags |= surface_flags; |
| SDL_PublicSurface = SDL_VideoSurface; |
| return SDL_PublicSurface; |
| } |
| |
| /* Create a renderer for the window */ |
| if (SDL_CreateRenderer(SDL_VideoWindow, -1, 0) < 0) { |
| return NULL; |
| } |
| |
| /* Create a texture for the screen surface */ |
| SDL_VideoTexture = |
| SDL_CreateTexture(desired_format, SDL_TextureAccess_Local, width, |
| height); |
| if (!SDL_VideoTexture) { |
| SDL_VideoTexture = |
| SDL_CreateTexture(0, SDL_TextureAccess_Local, width, height); |
| } |
| if (!SDL_VideoTexture) { |
| return NULL; |
| } |
| |
| /* Create the screen surface */ |
| SDL_VideoSurface = SDL_CreateRGBSurfaceFromTexture(SDL_VideoTexture); |
| if (!SDL_VideoSurface) { |
| return NULL; |
| } |
| SDL_VideoSurface->flags |= surface_flags; |
| |
| /* Set a default screen palette */ |
| if (SDL_VideoSurface->format->palette) { |
| SDL_VideoSurface->flags |= SDL_HWPALETTE; |
| SDL_DitherColors(SDL_VideoSurface->format->palette->colors, |
| SDL_VideoSurface->format->BitsPerPixel); |
| SDL_AddPaletteWatch(SDL_VideoSurface->format->palette, |
| SDL_VideoPaletteChanged, NULL); |
| SDL_SetPaletteColors(SDL_VideoSurface->format->palette, |
| SDL_VideoSurface->format->palette->colors, 0, |
| SDL_VideoSurface->format->palette->ncolors); |
| } |
| |
| /* Create a shadow surface if necessary */ |
| if (((bpp != SDL_VideoSurface->format->BitsPerPixel) |
| && !(flags & SDL_ANYFORMAT)) |
| || ((SDL_VideoSurface->flags & SDL_HWSURFACE) |
| && !(flags & SDL_HWSURFACE))) { |
| if ((bpp == SDL_VideoSurface->format->BitsPerPixel) |
| || (flags & SDL_ANYFORMAT)) { |
| SDL_ShadowSurface = |
| SDL_CreateRGBSurface(0, width, height, |
| SDL_VideoSurface->format->BitsPerPixel, |
| SDL_VideoSurface->format->Rmask, |
| SDL_VideoSurface->format->Gmask, |
| SDL_VideoSurface->format->Bmask, |
| SDL_VideoSurface->format->Amask); |
| } else { |
| SDL_ShadowSurface = |
| SDL_CreateRGBSurface(0, width, height, bpp, 0, 0, 0, 0); |
| } |
| if (!SDL_ShadowSurface) { |
| return NULL; |
| } |
| SDL_ShadowSurface->flags |= surface_flags; |
| |
| /* 8-bit SDL_ShadowSurface surfaces report that they have exclusive palette */ |
| if (SDL_ShadowSurface->format->palette) { |
| SDL_ShadowSurface->flags |= SDL_HWPALETTE; |
| if (SDL_VideoSurface->format->palette) { |
| SDL_SetSurfacePalette(SDL_ShadowSurface, |
| SDL_VideoSurface->format->palette); |
| } else { |
| SDL_DitherColors(SDL_ShadowSurface->format->palette->colors, |
| SDL_ShadowSurface->format->BitsPerPixel); |
| } |
| } |
| } |
| SDL_PublicSurface = |
| (SDL_ShadowSurface ? SDL_ShadowSurface : SDL_VideoSurface); |
| |
| /* Clear the surface for display */ |
| SDL_FillRect(SDL_PublicSurface, NULL, 0); |
| |
| /* We're finally done! */ |
| return SDL_PublicSurface; |
| } |
| |
| SDL_Surface * |
| SDL_GetVideoSurface(void) |
| { |
| return SDL_PublicSurface; |
| } |
| |
| SDL_Surface * |
| SDL_DisplayFormat(SDL_Surface * surface) |
| { |
| Uint32 flags; |
| |
| if (!SDL_PublicSurface) { |
| SDL_SetError("No video mode has been set"); |
| return NULL; |
| } |
| |
| /* Set the flags appropriate for copying to display surface */ |
| flags = SDL_SWSURFACE; |
| #ifdef AUTORLE_DISPLAYFORMAT |
| flags |= (surface->flags & (SDL_SRCCOLORKEY | SDL_SRCALPHA)); |
| flags |= SDL_RLEACCELOK; |
| #else |
| flags |= |
| surface->flags & (SDL_SRCCOLORKEY | SDL_SRCALPHA | SDL_RLEACCELOK); |
| #endif |
| return SDL_ConvertSurface(surface, SDL_PublicSurface->format, flags); |
| } |
| |
| SDL_Surface * |
| SDL_DisplayFormatAlpha(SDL_Surface * surface) |
| { |
| SDL_PixelFormat *vf; |
| SDL_PixelFormat *format; |
| SDL_Surface *converted; |
| Uint32 flags; |
| /* default to ARGB8888 */ |
| Uint32 amask = 0xff000000; |
| Uint32 rmask = 0x00ff0000; |
| Uint32 gmask = 0x0000ff00; |
| Uint32 bmask = 0x000000ff; |
| |
| if (!SDL_PublicSurface) { |
| SDL_SetError("No video mode has been set"); |
| return NULL; |
| } |
| vf = SDL_PublicSurface->format; |
| |
| switch (vf->BytesPerPixel) { |
| case 2: |
| /* For XGY5[56]5, use, AXGY8888, where {X, Y} = {R, B}. |
| For anything else (like ARGB4444) it doesn't matter |
| since we have no special code for it anyway */ |
| if ((vf->Rmask == 0x1f) && |
| (vf->Bmask == 0xf800 || vf->Bmask == 0x7c00)) { |
| rmask = 0xff; |
| bmask = 0xff0000; |
| } |
| break; |
| |
| case 3: |
| case 4: |
| /* Keep the video format, as long as the high 8 bits are |
| unused or alpha */ |
| if ((vf->Rmask == 0xff) && (vf->Bmask == 0xff0000)) { |
| rmask = 0xff; |
| bmask = 0xff0000; |
| } |
| break; |
| |
| default: |
| /* We have no other optimised formats right now. When/if a new |
| optimised alpha format is written, add the converter here */ |
| break; |
| } |
| format = SDL_AllocFormat(32, rmask, gmask, bmask, amask); |
| flags = SDL_PublicSurface->flags & SDL_HWSURFACE; |
| flags |= surface->flags & (SDL_SRCALPHA | SDL_RLEACCELOK); |
| converted = SDL_ConvertSurface(surface, format, flags); |
| SDL_FreeFormat(format); |
| return converted; |
| } |
| |
| int |
| SDL_Flip(SDL_Surface * screen) |
| { |
| SDL_UpdateRect(screen, 0, 0, 0, 0); |
| return 0; |
| } |
| |
| void |
| SDL_UpdateRect(SDL_Surface * screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h) |
| { |
| if (screen) { |
| SDL_Rect rect; |
| |
| /* Perform some checking */ |
| if (w == 0) |
| w = screen->w; |
| if (h == 0) |
| h = screen->h; |
| if ((int) (x + w) > screen->w) |
| return; |
| if ((int) (y + h) > screen->h) |
| return; |
| |
| /* Fill the rectangle */ |
| rect.x = (Sint16) x; |
| rect.y = (Sint16) y; |
| rect.w = (Uint16) w; |
| rect.h = (Uint16) h; |
| SDL_UpdateRects(screen, 1, &rect); |
| } |
| } |
| void |
| SDL_UpdateRects(SDL_Surface * screen, int numrects, SDL_Rect * rects) |
| { |
| int i; |
| |
| if (screen == SDL_ShadowSurface) { |
| for (i = 0; i < numrects; ++i) { |
| SDL_LowerBlit(SDL_ShadowSurface, &rects[i], SDL_VideoSurface, |
| &rects[i]); |
| } |
| |
| /* Fall through to video surface update */ |
| screen = SDL_VideoSurface; |
| } |
| if (screen == SDL_VideoSurface) { |
| for (i = 0; i < numrects; ++i) { |
| SDL_RenderCopy(SDL_VideoTexture, &rects[i], &rects[i], |
| SDL_TextureBlendMode_None, |
| SDL_TextureScaleMode_None); |
| } |
| SDL_RenderPresent(); |
| } |
| } |
| |
| void |
| SDL_WM_SetCaption(const char *title, const char *icon) |
| { |
| if (wm_title) { |
| SDL_free(wm_title); |
| } else { |
| wm_title = SDL_strdup(title); |
| } |
| SDL_SetWindowTitle(SDL_VideoWindow, wm_title); |
| } |
| |
| void |
| SDL_WM_GetCaption(char **title, char **icon) |
| { |
| if (title) { |
| *title = wm_title; |
| } |
| if (icon) { |
| *icon = ""; |
| } |
| } |
| |
| void |
| SDL_WM_SetIcon(SDL_Surface * icon, Uint8 * mask) |
| { |
| /* FIXME */ |
| } |
| |
| int |
| SDL_WM_IconifyWindow(void) |
| { |
| SDL_MinimizeWindow(SDL_VideoWindow); |
| return 0; |
| } |
| |
| int |
| SDL_WM_ToggleFullScreen(SDL_Surface * surface) |
| { |
| if (SDL_GetWindowFlags(SDL_VideoWindow) & SDL_WINDOW_FULLSCREEN) { |
| if (SDL_SetWindowFullscreen(SDL_VideoWindow, 0) < 0) { |
| return 0; |
| } |
| SDL_PublicSurface->flags &= ~SDL_FULLSCREEN; |
| } else { |
| if (SDL_SetWindowFullscreen(SDL_VideoWindow, 1) < 0) { |
| return 0; |
| } |
| SDL_PublicSurface->flags |= SDL_FULLSCREEN; |
| } |
| return 1; |
| } |
| |
| SDL_GrabMode |
| SDL_WM_GrabInput(SDL_GrabMode mode) |
| { |
| if (mode != SDL_GRAB_QUERY) { |
| SDL_SetWindowGrab(SDL_VideoWindow, mode); |
| } |
| return (SDL_GrabMode) SDL_GetWindowGrab(SDL_VideoWindow); |
| } |
| |
| void |
| SDL_WarpMouse(Uint16 x, Uint16 y) |
| { |
| SDL_WarpMouseInWindow(SDL_VideoWindow, x, y); |
| } |
| |
| Uint8 |
| SDL_GetAppState(void) |
| { |
| Uint8 state = 0; |
| Uint32 flags = 0; |
| |
| flags = SDL_GetWindowFlags(SDL_VideoWindow); |
| if ((flags & SDL_WINDOW_SHOWN) && !(flags & SDL_WINDOW_MINIMIZED)) { |
| state |= SDL_APPACTIVE; |
| } |
| if (flags & SDL_WINDOW_INPUT_FOCUS) { |
| state |= SDL_APPINPUTFOCUS; |
| } |
| if (flags & SDL_WINDOW_MOUSE_FOCUS) { |
| state |= SDL_APPMOUSEFOCUS; |
| } |
| return state; |
| } |
| |
| const SDL_version * |
| SDL_Linked_Version(void) |
| { |
| static SDL_version version; |
| SDL_VERSION(&version); |
| return &version; |
| } |
| |
| int |
| SDL_SetPalette(SDL_Surface * surface, int flags, const SDL_Color * colors, |
| int firstcolor, int ncolors) |
| { |
| return SDL_SetColors(surface, colors, firstcolor, ncolors); |
| } |
| |
| int |
| SDL_SetColors(SDL_Surface * surface, const SDL_Color * colors, int firstcolor, |
| int ncolors) |
| { |
| if (SDL_SetPaletteColors |
| (surface->format->palette, colors, firstcolor, ncolors) == 0) { |
| return 1; |
| } else { |
| return 0; |
| } |
| } |
| |
| int |
| SDL_GetWMInfo(SDL_SysWMinfo * info) |
| { |
| return SDL_GetWindowWMInfo(SDL_VideoWindow, info); |
| } |
| |
| #if 0 |
| void |
| SDL_MoveCursor(int x, int y) |
| { |
| SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
| |
| /* Erase and update the current mouse position */ |
| if (SHOULD_DRAWCURSOR(SDL_cursorstate)) { |
| /* Erase and redraw mouse cursor in new position */ |
| SDL_LockCursor(); |
| SDL_EraseCursor(SDL_VideoSurface); |
| SDL_cursor->area.x = (x - SDL_cursor->hot_x); |
| SDL_cursor->area.y = (y - SDL_cursor->hot_y); |
| SDL_DrawCursor(SDL_VideoSurface); |
| SDL_UnlockCursor(); |
| } else if (_this->MoveWMCursor) { |
| _this->MoveWMCursor(_this, x, y); |
| } |
| } |
| |
| /* Keep track of the current cursor colors */ |
| static int palette_changed = 1; |
| static Uint8 pixels8[2]; |
| |
| void |
| SDL_CursorPaletteChanged(void) |
| { |
| palette_changed = 1; |
| } |
| |
| void |
| SDL_MouseRect(SDL_Rect * area) |
| { |
| SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
| int clip_diff; |
| |
| *area = SDL_cursor->area; |
| if (area->x < 0) { |
| area->w += area->x; |
| area->x = 0; |
| } |
| if (area->y < 0) { |
| area->h += area->y; |
| area->y = 0; |
| } |
| clip_diff = (area->x + area->w) - SDL_VideoSurface->w; |
| if (clip_diff > 0) { |
| area->w = area->w < clip_diff ? 0 : area->w - clip_diff; |
| } |
| clip_diff = (area->y + area->h) - SDL_VideoSurface->h; |
| if (clip_diff > 0) { |
| area->h = area->h < clip_diff ? 0 : area->h - clip_diff; |
| } |
| } |
| |
| static void |
| SDL_DrawCursorFast(SDL_Surface * screen, SDL_Rect * area) |
| { |
| const Uint32 pixels[2] = { 0xFFFFFFFF, 0x00000000 }; |
| int i, w, h; |
| Uint8 *data, datab; |
| Uint8 *mask, maskb; |
| |
| data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8; |
| mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8; |
| switch (screen->format->BytesPerPixel) { |
| |
| case 1: |
| { |
| Uint8 *dst; |
| int dstskip; |
| |
| if (palette_changed) { |
| pixels8[0] = |
| (Uint8) SDL_MapRGB(screen->format, 255, 255, 255); |
| pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0); |
| palette_changed = 0; |
| } |
| dst = (Uint8 *) screen->pixels + |
| (SDL_cursor->area.y + area->y) * screen->pitch + |
| SDL_cursor->area.x; |
| dstskip = screen->pitch - area->w; |
| |
| for (h = area->h; h; h--) { |
| for (w = area->w / 8; w; w--) { |
| maskb = *mask++; |
| datab = *data++; |
| for (i = 0; i < 8; ++i) { |
| if (maskb & 0x80) { |
| *dst = pixels8[datab >> 7]; |
| } |
| maskb <<= 1; |
| datab <<= 1; |
| dst++; |
| } |
| } |
| dst += dstskip; |
| } |
| } |
| break; |
| |
| case 2: |
| { |
| Uint16 *dst; |
| int dstskip; |
| |
| dst = (Uint16 *) screen->pixels + |
| (SDL_cursor->area.y + area->y) * screen->pitch / 2 + |
| SDL_cursor->area.x; |
| dstskip = (screen->pitch / 2) - area->w; |
| |
| for (h = area->h; h; h--) { |
| for (w = area->w / 8; w; w--) { |
| maskb = *mask++; |
| datab = *data++; |
| for (i = 0; i < 8; ++i) { |
| if (maskb & 0x80) { |
| *dst = (Uint16) pixels[datab >> 7]; |
| } |
| maskb <<= 1; |
| datab <<= 1; |
| dst++; |
| } |
| } |
| dst += dstskip; |
| } |
| } |
| break; |
| |
| case 3: |
| { |
| Uint8 *dst; |
| int dstskip; |
| |
| dst = (Uint8 *) screen->pixels + |
| (SDL_cursor->area.y + area->y) * screen->pitch + |
| SDL_cursor->area.x * 3; |
| dstskip = screen->pitch - area->w * 3; |
| |
| for (h = area->h; h; h--) { |
| for (w = area->w / 8; w; w--) { |
| maskb = *mask++; |
| datab = *data++; |
| for (i = 0; i < 8; ++i) { |
| if (maskb & 0x80) { |
| SDL_memset(dst, pixels[datab >> 7], 3); |
| } |
| maskb <<= 1; |
| datab <<= 1; |
| dst += 3; |
| } |
| } |
| dst += dstskip; |
| } |
| } |
| break; |
| |
| case 4: |
| { |
| Uint32 *dst; |
| int dstskip; |
| |
| dst = (Uint32 *) screen->pixels + |
| (SDL_cursor->area.y + area->y) * screen->pitch / 4 + |
| SDL_cursor->area.x; |
| dstskip = (screen->pitch / 4) - area->w; |
| |
| for (h = area->h; h; h--) { |
| for (w = area->w / 8; w; w--) { |
| maskb = *mask++; |
| datab = *data++; |
| for (i = 0; i < 8; ++i) { |
| if (maskb & 0x80) { |
| *dst = pixels[datab >> 7]; |
| } |
| maskb <<= 1; |
| datab <<= 1; |
| dst++; |
| } |
| } |
| dst += dstskip; |
| } |
| } |
| break; |
| } |
| } |
| |
| static void |
| SDL_DrawCursorSlow(SDL_Surface * screen, SDL_Rect * area) |
| { |
| const Uint32 pixels[2] = { 0xFFFFFF, 0x000000 }; |
| int h; |
| int x, minx, maxx; |
| Uint8 *data, datab = 0; |
| Uint8 *mask, maskb = 0; |
| Uint8 *dst; |
| int dstbpp, dstskip; |
| |
| data = SDL_cursor->data + area->y * SDL_cursor->area.w / 8; |
| mask = SDL_cursor->mask + area->y * SDL_cursor->area.w / 8; |
| dstbpp = screen->format->BytesPerPixel; |
| dst = (Uint8 *) screen->pixels + |
| (SDL_cursor->area.y + area->y) * screen->pitch + |
| SDL_cursor->area.x * dstbpp; |
| dstskip = screen->pitch - SDL_cursor->area.w * dstbpp; |
| |
| minx = area->x; |
| maxx = area->x + area->w; |
| if (screen->format->BytesPerPixel == 1) { |
| if (palette_changed) { |
| pixels8[0] = (Uint8) SDL_MapRGB(screen->format, 255, 255, 255); |
| pixels8[1] = (Uint8) SDL_MapRGB(screen->format, 0, 0, 0); |
| palette_changed = 0; |
| } |
| for (h = area->h; h; h--) { |
| for (x = 0; x < SDL_cursor->area.w; ++x) { |
| if ((x % 8) == 0) { |
| maskb = *mask++; |
| datab = *data++; |
| } |
| if ((x >= minx) && (x < maxx)) { |
| if (maskb & 0x80) { |
| SDL_memset(dst, pixels8[datab >> 7], dstbpp); |
| } |
| } |
| maskb <<= 1; |
| datab <<= 1; |
| dst += dstbpp; |
| } |
| dst += dstskip; |
| } |
| } else { |
| for (h = area->h; h; h--) { |
| for (x = 0; x < SDL_cursor->area.w; ++x) { |
| if ((x % 8) == 0) { |
| maskb = *mask++; |
| datab = *data++; |
| } |
| if ((x >= minx) && (x < maxx)) { |
| if (maskb & 0x80) { |
| SDL_memset(dst, pixels[datab >> 7], dstbpp); |
| } |
| } |
| maskb <<= 1; |
| datab <<= 1; |
| dst += dstbpp; |
| } |
| dst += dstskip; |
| } |
| } |
| } |
| |
| /* This handles the ugly work of converting the saved cursor background from |
| the pixel format of the shadow surface to that of the video surface. |
| This is only necessary when blitting from a shadow surface of a different |
| pixel format than the video surface, and using a software rendered cursor. |
| */ |
| static void |
| SDL_ConvertCursorSave(SDL_Surface * screen, int w, int h) |
| { |
| SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
| SDL_BlitInfo info; |
| SDL_loblit RunBlit; |
| |
| /* Make sure we can steal the blit mapping */ |
| if (screen->map->dst != SDL_VideoSurface) { |
| return; |
| } |
| |
| /* Set up the blit information */ |
| info.s_pixels = SDL_cursor->save[1]; |
| info.s_width = w; |
| info.s_height = h; |
| info.s_skip = 0; |
| info.d_pixels = SDL_cursor->save[0]; |
| info.d_width = w; |
| info.d_height = h; |
| info.d_skip = 0; |
| info.aux_data = screen->map->sw_data->aux_data; |
| info.src = screen->format; |
| info.table = screen->map->table; |
| info.dst = SDL_VideoSurface->format; |
| RunBlit = screen->map->sw_data->blit; |
| |
| /* Run the actual software blit */ |
| RunBlit(&info); |
| } |
| |
| void |
| SDL_DrawCursorNoLock(SDL_Surface * screen) |
| { |
| SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
| SDL_Rect area; |
| |
| /* Get the mouse rectangle, clipped to the screen */ |
| SDL_MouseRect(&area); |
| if ((area.w == 0) || (area.h == 0)) { |
| return; |
| } |
| |
| /* Copy mouse background */ |
| { |
| int w, h, screenbpp; |
| Uint8 *src, *dst; |
| |
| /* Set up the copy pointers */ |
| screenbpp = screen->format->BytesPerPixel; |
| if ((screen == SDL_VideoSurface) || |
| FORMAT_EQUAL(screen->format, SDL_VideoSurface->format)) { |
| dst = SDL_cursor->save[0]; |
| } else { |
| dst = SDL_cursor->save[1]; |
| } |
| src = (Uint8 *) screen->pixels + area.y * screen->pitch + |
| area.x * screenbpp; |
| |
| /* Perform the copy */ |
| w = area.w * screenbpp; |
| h = area.h; |
| while (h--) { |
| SDL_memcpy(dst, src, w); |
| dst += w; |
| src += screen->pitch; |
| } |
| } |
| |
| /* Draw the mouse cursor */ |
| area.x -= SDL_cursor->area.x; |
| area.y -= SDL_cursor->area.y; |
| if ((area.x == 0) && (area.w == SDL_cursor->area.w)) { |
| SDL_DrawCursorFast(screen, &area); |
| } else { |
| SDL_DrawCursorSlow(screen, &area); |
| } |
| } |
| |
| void |
| SDL_DrawCursor(SDL_Surface * screen) |
| { |
| /* Lock the screen if necessary */ |
| if (screen == NULL) { |
| return; |
| } |
| if (SDL_MUSTLOCK(screen)) { |
| if (SDL_LockSurface(screen) < 0) { |
| return; |
| } |
| } |
| |
| SDL_DrawCursorNoLock(screen); |
| |
| /* Unlock the screen and update if necessary */ |
| if (SDL_MUSTLOCK(screen)) { |
| SDL_UnlockSurface(screen); |
| } |
| if ((screen->flags & SDL_SCREEN_SURFACE) && |
| !(screen->flags & SDL_HWSURFACE)) { |
| SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
| SDL_Window *window; |
| SDL_Rect area; |
| |
| window = SDL_GetWindowFromSurface(screen); |
| if (!window) { |
| return; |
| } |
| |
| SDL_MouseRect(&area); |
| |
| if (_this->UpdateWindowSurface) { |
| _this->UpdateWindowSurface(_this, window, 1, &area); |
| } |
| } |
| } |
| |
| void |
| SDL_EraseCursorNoLock(SDL_Surface * screen) |
| { |
| SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
| SDL_Window *window; |
| SDL_Rect area; |
| |
| /* Get the window associated with the surface */ |
| window = SDL_GetWindowFromSurface(screen); |
| if (!window || !window->surface) { |
| return; |
| } |
| |
| /* Get the mouse rectangle, clipped to the screen */ |
| SDL_MouseRect(&area); |
| if ((area.w == 0) || (area.h == 0)) { |
| return; |
| } |
| |
| /* Copy mouse background */ |
| { |
| int w, h, screenbpp; |
| Uint8 *src, *dst; |
| |
| /* Set up the copy pointers */ |
| screenbpp = screen->format->BytesPerPixel; |
| if ((screen->flags & SDL_SCREEN_SURFACE) || |
| FORMAT_EQUAL(screen->format, window->surface->format)) { |
| src = SDL_cursor->save[0]; |
| } else { |
| src = SDL_cursor->save[1]; |
| } |
| dst = (Uint8 *) screen->pixels + area.y * screen->pitch + |
| area.x * screenbpp; |
| |
| /* Perform the copy */ |
| w = area.w * screenbpp; |
| h = area.h; |
| while (h--) { |
| SDL_memcpy(dst, src, w); |
| src += w; |
| dst += screen->pitch; |
| } |
| |
| /* Perform pixel conversion on cursor background */ |
| if (src > SDL_cursor->save[1]) { |
| SDL_ConvertCursorSave(screen, area.w, area.h); |
| } |
| } |
| } |
| |
| void |
| SDL_EraseCursor(SDL_Surface * screen) |
| { |
| /* Lock the screen if necessary */ |
| if (screen == NULL) { |
| return; |
| } |
| if (SDL_MUSTLOCK(screen)) { |
| if (SDL_LockSurface(screen) < 0) { |
| return; |
| } |
| } |
| |
| SDL_EraseCursorNoLock(screen); |
| |
| /* Unlock the screen and update if necessary */ |
| if (SDL_MUSTLOCK(screen)) { |
| SDL_UnlockSurface(screen); |
| } |
| if ((screen->flags & SDL_SCREEN_SURFACE) && |
| !(screen->flags & SDL_HWSURFACE)) { |
| SDL_VideoDevice *_this = SDL_GetVideoDevice(); |
| SDL_Window *window; |
| SDL_Rect area; |
| |
| window = SDL_GetWindowFromSurface(screen); |
| if (!window) { |
| return; |
| } |
| |
| SDL_MouseRect(&area); |
| |
| if (_this->UpdateWindowSurface) { |
| _this->UpdateWindowSurface(_this, window, 1, &area); |
| } |
| } |
| } |
| |
| /* Reset the cursor on video mode change |
| FIXME: Keep track of all cursors, and reset them all. |
| */ |
| void |
| SDL_ResetCursor(void) |
| { |
| int savelen; |
| |
| if (SDL_cursor) { |
| savelen = SDL_cursor->area.w * 4 * SDL_cursor->area.h; |
| SDL_cursor->area.x = 0; |
| SDL_cursor->area.y = 0; |
| SDL_memset(SDL_cursor->save[0], 0, savelen); |
| } |
| } |
| #endif |
| |
| struct private_yuvhwdata |
| { |
| Uint16 pitches[3]; |
| Uint8 *planes[3]; |
| |
| SDL_TextureID textureID; |
| }; |
| |
| SDL_Overlay * |
| SDL_CreateYUVOverlay(int w, int h, Uint32 format, SDL_Surface * display) |
| { |
| SDL_Overlay *overlay; |
| Uint32 texture_format; |
| |
| if ((display->flags & SDL_OPENGL) == SDL_OPENGL) { |
| SDL_SetError("YUV overlays are not supported in OpenGL mode"); |
| return NULL; |
| } |
| |
| if (display != SDL_PublicSurface) { |
| SDL_SetError("YUV display is only supported on the screen surface"); |
| return NULL; |
| } |
| |
| switch (format) { |
| case SDL_YV12_OVERLAY: |
| texture_format = SDL_PixelFormat_YV12; |
| break; |
| case SDL_IYUV_OVERLAY: |
| texture_format = SDL_PixelFormat_IYUV; |
| break; |
| case SDL_YUY2_OVERLAY: |
| texture_format = SDL_PixelFormat_YUY2; |
| break; |
| case SDL_UYVY_OVERLAY: |
| texture_format = SDL_PixelFormat_UYVY; |
| break; |
| case SDL_YVYU_OVERLAY: |
| texture_format = SDL_PixelFormat_YVYU; |
| break; |
| default: |
| SDL_SetError("Unknown YUV format"); |
| return NULL; |
| } |
| |
| overlay = (SDL_Overlay *) SDL_malloc(sizeof(*overlay)); |
| if (!overlay) { |
| SDL_OutOfMemory(); |
| return NULL; |
| } |
| SDL_zerop(overlay); |
| |
| overlay->hwdata = |
| (struct private_yuvhwdata *) SDL_malloc(sizeof(*overlay->hwdata)); |
| if (!overlay->hwdata) { |
| SDL_free(overlay); |
| SDL_OutOfMemory(); |
| return NULL; |
| } |
| |
| overlay->format = format; |
| overlay->w = w; |
| overlay->h = h; |
| if (format == SDL_YV12_OVERLAY || format == SDL_IYUV_OVERLAY) { |
| overlay->planes = 3; |
| } else { |
| overlay->planes = 1; |
| } |
| overlay->pitches = overlay->hwdata->pitches; |
| overlay->pixels = overlay->hwdata->planes; |
| |
| switch (format) { |
| case SDL_YV12_OVERLAY: |
| case SDL_IYUV_OVERLAY: |
| overlay->pitches[0] = overlay->w; |
| overlay->pitches[1] = overlay->w / 2; |
| overlay->pitches[2] = overlay->w / 2; |
| break; |
| case SDL_YUY2_OVERLAY: |
| case SDL_UYVY_OVERLAY: |
| case SDL_YVYU_OVERLAY: |
| overlay->pitches[0] = overlay->w * 2; |
| break; |
| } |
| |
| overlay->hwdata->textureID = |
| SDL_CreateTexture(texture_format, SDL_TextureAccess_Local, w, h); |
| if (!overlay->hwdata->textureID) { |
| SDL_FreeYUVOverlay(overlay); |
| return NULL; |
| } |
| |
| return overlay; |
| } |
| |
| int |
| SDL_LockYUVOverlay(SDL_Overlay * overlay) |
| { |
| void *pixels; |
| int pitch; |
| if (SDL_LockTexture(overlay->hwdata->textureID, NULL, 1, &pixels, &pitch) |
| < 0) { |
| return -1; |
| } |
| switch (overlay->format) { |
| case SDL_YV12_OVERLAY: |
| case SDL_IYUV_OVERLAY: |
| overlay->pixels[0] = (Uint8 *) pixels; |
| overlay->pixels[1] = |
| overlay->pixels[0] + overlay->pitches[0] * overlay->h; |
| overlay->pixels[2] = |
| overlay->pixels[1] + overlay->pitches[1] * overlay->h; |
| break; |
| case SDL_YUY2_OVERLAY: |
| case SDL_UYVY_OVERLAY: |
| case SDL_YVYU_OVERLAY: |
| overlay->pixels[0] = (Uint8 *) pixels; |
| break; |
| } |
| return 0; |
| } |
| |
| void |
| SDL_UnlockYUVOverlay(SDL_Overlay * overlay) |
| { |
| SDL_UnlockTexture(overlay->hwdata->textureID); |
| } |
| |
| int |
| SDL_DisplayYUVOverlay(SDL_Overlay * overlay, SDL_Rect * dstrect) |
| { |
| if (SDL_RenderCopy(overlay->hwdata->textureID, NULL, dstrect, |
| SDL_TextureBlendMode_None, |
| SDL_TextureScaleMode_Fast) < 0) { |
| return -1; |
| } |
| SDL_RenderPresent(); |
| return 0; |
| } |
| |
| void |
| SDL_FreeYUVOverlay(SDL_Overlay * overlay) |
| { |
| if (overlay) { |
| if (overlay->hwdata) { |
| if (overlay->hwdata->textureID) { |
| SDL_DestroyTexture(overlay->hwdata->textureID); |
| } |
| SDL_free(overlay->hwdata); |
| } |
| SDL_free(overlay); |
| } |
| } |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |
